CHANGES revision 267258
1 2 OpenSSL CHANGES 3 _______________ 4 5 Changes between 1.0.1g and 1.0.1h [5 Jun 2014] 6 7 *) Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted 8 handshake can force the use of weak keying material in OpenSSL 9 SSL/TLS clients and servers. 10 11 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and 12 researching this issue. (CVE-2014-0224) 13 [KIKUCHI Masashi, Steve Henson] 14 15 *) Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an 16 OpenSSL DTLS client the code can be made to recurse eventually crashing 17 in a DoS attack. 18 19 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue. 20 (CVE-2014-0221) 21 [Imre Rad, Steve Henson] 22 23 *) Fix DTLS invalid fragment vulnerability. A buffer overrun attack can 24 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS 25 client or server. This is potentially exploitable to run arbitrary 26 code on a vulnerable client or server. 27 28 Thanks to J�ri Aedla for reporting this issue. (CVE-2014-0195) 29 [J�ri Aedla, Steve Henson] 30 31 *) Fix bug in TLS code where clients enable anonymous ECDH ciphersuites 32 are subject to a denial of service attack. 33 34 Thanks to Felix Gr�bert and Ivan Fratric at Google for discovering 35 this issue. (CVE-2014-3470) 36 [Felix Gr�bert, Ivan Fratric, Steve Henson] 37 38 *) Harmonize version and its documentation. -f flag is used to display 39 compilation flags. 40 [mancha <mancha1@zoho.com>] 41 42 *) Fix eckey_priv_encode so it immediately returns an error upon a failure 43 in i2d_ECPrivateKey. 44 [mancha <mancha1@zoho.com>] 45 46 *) Fix some double frees. These are not thought to be exploitable. 47 [mancha <mancha1@zoho.com>] 48 49 Changes between 1.0.1f and 1.0.1g [7 Apr 2014] 50 51 *) A missing bounds check in the handling of the TLS heartbeat extension 52 can be used to reveal up to 64k of memory to a connected client or 53 server. 54 55 Thanks for Neel Mehta of Google Security for discovering this bug and to 56 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for 57 preparing the fix (CVE-2014-0160) 58 [Adam Langley, Bodo Moeller] 59 60 *) Fix for the attack described in the paper "Recovering OpenSSL 61 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack" 62 by Yuval Yarom and Naomi Benger. Details can be obtained from: 63 http://eprint.iacr.org/2014/140 64 65 Thanks to Yuval Yarom and Naomi Benger for discovering this 66 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076) 67 [Yuval Yarom and Naomi Benger] 68 69 *) TLS pad extension: draft-agl-tls-padding-03 70 71 Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the 72 TLS client Hello record length value would otherwise be > 255 and 73 less that 512 pad with a dummy extension containing zeroes so it 74 is at least 512 bytes long. 75 76 [Adam Langley, Steve Henson] 77 78 Changes between 1.0.1e and 1.0.1f [6 Jan 2014] 79 80 *) Fix for TLS record tampering bug. A carefully crafted invalid 81 handshake could crash OpenSSL with a NULL pointer exception. 82 Thanks to Anton Johansson for reporting this issues. 83 (CVE-2013-4353) 84 85 *) Keep original DTLS digest and encryption contexts in retransmission 86 structures so we can use the previous session parameters if they need 87 to be resent. (CVE-2013-6450) 88 [Steve Henson] 89 90 *) Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which 91 avoids preferring ECDHE-ECDSA ciphers when the client appears to be 92 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for 93 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug 94 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing 95 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer. 96 [Rob Stradling, Adam Langley] 97 98 Changes between 1.0.1d and 1.0.1e [11 Feb 2013] 99 100 *) Correct fix for CVE-2013-0169. The original didn't work on AES-NI 101 supporting platforms or when small records were transferred. 102 [Andy Polyakov, Steve Henson] 103 104 Changes between 1.0.1c and 1.0.1d [5 Feb 2013] 105 106 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time. 107 108 This addresses the flaw in CBC record processing discovered by 109 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found 110 at: http://www.isg.rhul.ac.uk/tls/ 111 112 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 113 Security Group at Royal Holloway, University of London 114 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and 115 Emilia K�sper for the initial patch. 116 (CVE-2013-0169) 117 [Emilia K�sper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson] 118 119 *) Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode 120 ciphersuites which can be exploited in a denial of service attack. 121 Thanks go to and to Adam Langley <agl@chromium.org> for discovering 122 and detecting this bug and to Wolfgang Ettlinger 123 <wolfgang.ettlinger@gmail.com> for independently discovering this issue. 124 (CVE-2012-2686) 125 [Adam Langley] 126 127 *) Return an error when checking OCSP signatures when key is NULL. 128 This fixes a DoS attack. (CVE-2013-0166) 129 [Steve Henson] 130 131 *) Make openssl verify return errors. 132 [Chris Palmer <palmer@google.com> and Ben Laurie] 133 134 *) Call OCSP Stapling callback after ciphersuite has been chosen, so 135 the right response is stapled. Also change SSL_get_certificate() 136 so it returns the certificate actually sent. 137 See http://rt.openssl.org/Ticket/Display.html?id=2836. 138 [Rob Stradling <rob.stradling@comodo.com>] 139 140 *) Fix possible deadlock when decoding public keys. 141 [Steve Henson] 142 143 *) Don't use TLS 1.0 record version number in initial client hello 144 if renegotiating. 145 [Steve Henson] 146 147 Changes between 1.0.1b and 1.0.1c [10 May 2012] 148 149 *) Sanity check record length before skipping explicit IV in TLS 150 1.2, 1.1 and DTLS to fix DoS attack. 151 152 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic 153 fuzzing as a service testing platform. 154 (CVE-2012-2333) 155 [Steve Henson] 156 157 *) Initialise tkeylen properly when encrypting CMS messages. 158 Thanks to Solar Designer of Openwall for reporting this issue. 159 [Steve Henson] 160 161 *) In FIPS mode don't try to use composite ciphers as they are not 162 approved. 163 [Steve Henson] 164 165 Changes between 1.0.1a and 1.0.1b [26 Apr 2012] 166 167 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and 168 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately 169 mean any application compiled against OpenSSL 1.0.0 headers setting 170 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng 171 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to 172 0x10000000L Any application which was previously compiled against 173 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1 174 will need to be recompiled as a result. Letting be results in 175 inability to disable specifically TLS 1.1 and in client context, 176 in unlike event, limit maximum offered version to TLS 1.0 [see below]. 177 [Steve Henson] 178 179 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not 180 disable just protocol X, but all protocols above X *if* there are 181 protocols *below* X still enabled. In more practical terms it means 182 that if application wants to disable TLS1.0 in favor of TLS1.1 and 183 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass 184 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to 185 client side. 186 [Andy Polyakov] 187 188 Changes between 1.0.1 and 1.0.1a [19 Apr 2012] 189 190 *) Check for potentially exploitable overflows in asn1_d2i_read_bio 191 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer 192 in CRYPTO_realloc_clean. 193 194 Thanks to Tavis Ormandy, Google Security Team, for discovering this 195 issue and to Adam Langley <agl@chromium.org> for fixing it. 196 (CVE-2012-2110) 197 [Adam Langley (Google), Tavis Ormandy, Google Security Team] 198 199 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections. 200 [Adam Langley] 201 202 *) Workarounds for some broken servers that "hang" if a client hello 203 record length exceeds 255 bytes. 204 205 1. Do not use record version number > TLS 1.0 in initial client 206 hello: some (but not all) hanging servers will now work. 207 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate 208 the number of ciphers sent in the client hello. This should be 209 set to an even number, such as 50, for example by passing: 210 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure. 211 Most broken servers should now work. 212 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable 213 TLS 1.2 client support entirely. 214 [Steve Henson] 215 216 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH. 217 [Andy Polyakov] 218 219 Changes between 1.0.0h and 1.0.1 [14 Mar 2012] 220 221 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET 222 STRING form instead of a DigestInfo. 223 [Steve Henson] 224 225 *) The format used for MDC2 RSA signatures is inconsistent between EVP 226 and the RSA_sign/RSA_verify functions. This was made more apparent when 227 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular 228 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect 229 the correct format in RSA_verify so both forms transparently work. 230 [Steve Henson] 231 232 *) Some servers which support TLS 1.0 can choke if we initially indicate 233 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA 234 encrypted premaster secret. As a workaround use the maximum pemitted 235 client version in client hello, this should keep such servers happy 236 and still work with previous versions of OpenSSL. 237 [Steve Henson] 238 239 *) Add support for TLS/DTLS heartbeats. 240 [Robin Seggelmann <seggelmann@fh-muenster.de>] 241 242 *) Add support for SCTP. 243 [Robin Seggelmann <seggelmann@fh-muenster.de>] 244 245 *) Improved PRNG seeding for VOS. 246 [Paul Green <Paul.Green@stratus.com>] 247 248 *) Extensive assembler packs updates, most notably: 249 250 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support; 251 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES); 252 - x86_64: bit-sliced AES implementation; 253 - ARM: NEON support, contemporary platforms optimizations; 254 - s390x: z196 support; 255 - *: GHASH and GF(2^m) multiplication implementations; 256 257 [Andy Polyakov] 258 259 *) Make TLS-SRP code conformant with RFC 5054 API cleanup 260 (removal of unnecessary code) 261 [Peter Sylvester <peter.sylvester@edelweb.fr>] 262 263 *) Add TLS key material exporter from RFC 5705. 264 [Eric Rescorla] 265 266 *) Add DTLS-SRTP negotiation from RFC 5764. 267 [Eric Rescorla] 268 269 *) Add Next Protocol Negotiation, 270 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be 271 disabled with a no-npn flag to config or Configure. Code donated 272 by Google. 273 [Adam Langley <agl@google.com> and Ben Laurie] 274 275 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224, 276 NIST-P256, NIST-P521, with constant-time single point multiplication on 277 typical inputs. Compiler support for the nonstandard type __uint128_t is 278 required to use this (present in gcc 4.4 and later, for 64-bit builds). 279 Code made available under Apache License version 2.0. 280 281 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command 282 line to include this in your build of OpenSSL, and run "make depend" (or 283 "make update"). This enables the following EC_METHODs: 284 285 EC_GFp_nistp224_method() 286 EC_GFp_nistp256_method() 287 EC_GFp_nistp521_method() 288 289 EC_GROUP_new_by_curve_name() will automatically use these (while 290 EC_GROUP_new_curve_GFp() currently prefers the more flexible 291 implementations). 292 [Emilia K�sper, Adam Langley, Bodo Moeller (Google)] 293 294 *) Use type ossl_ssize_t instad of ssize_t which isn't available on 295 all platforms. Move ssize_t definition from e_os.h to the public 296 header file e_os2.h as it now appears in public header file cms.h 297 [Steve Henson] 298 299 *) New -sigopt option to the ca, req and x509 utilities. Additional 300 signature parameters can be passed using this option and in 301 particular PSS. 302 [Steve Henson] 303 304 *) Add RSA PSS signing function. This will generate and set the 305 appropriate AlgorithmIdentifiers for PSS based on those in the 306 corresponding EVP_MD_CTX structure. No application support yet. 307 [Steve Henson] 308 309 *) Support for companion algorithm specific ASN1 signing routines. 310 New function ASN1_item_sign_ctx() signs a pre-initialised 311 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on 312 the appropriate parameters. 313 [Steve Henson] 314 315 *) Add new algorithm specific ASN1 verification initialisation function 316 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1 317 handling will be the same no matter what EVP_PKEY_METHOD is used. 318 Add a PSS handler to support verification of PSS signatures: checked 319 against a number of sample certificates. 320 [Steve Henson] 321 322 *) Add signature printing for PSS. Add PSS OIDs. 323 [Steve Henson, Martin Kaiser <lists@kaiser.cx>] 324 325 *) Add algorithm specific signature printing. An individual ASN1 method 326 can now print out signatures instead of the standard hex dump. 327 328 More complex signatures (e.g. PSS) can print out more meaningful 329 information. Include DSA version that prints out the signature 330 parameters r, s. 331 [Steve Henson] 332 333 *) Password based recipient info support for CMS library: implementing 334 RFC3211. 335 [Steve Henson] 336 337 *) Split password based encryption into PBES2 and PBKDF2 functions. This 338 neatly separates the code into cipher and PBE sections and is required 339 for some algorithms that split PBES2 into separate pieces (such as 340 password based CMS). 341 [Steve Henson] 342 343 *) Session-handling fixes: 344 - Fix handling of connections that are resuming with a session ID, 345 but also support Session Tickets. 346 - Fix a bug that suppressed issuing of a new ticket if the client 347 presented a ticket with an expired session. 348 - Try to set the ticket lifetime hint to something reasonable. 349 - Make tickets shorter by excluding irrelevant information. 350 - On the client side, don't ignore renewed tickets. 351 [Adam Langley, Bodo Moeller (Google)] 352 353 *) Fix PSK session representation. 354 [Bodo Moeller] 355 356 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations. 357 358 This work was sponsored by Intel. 359 [Andy Polyakov] 360 361 *) Add GCM support to TLS library. Some custom code is needed to split 362 the IV between the fixed (from PRF) and explicit (from TLS record) 363 portions. This adds all GCM ciphersuites supported by RFC5288 and 364 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and 365 add a special AESGCM string for GCM only. 366 [Steve Henson] 367 368 *) Expand range of ctrls for AES GCM. Permit setting invocation 369 field on decrypt and retrieval of invocation field only on encrypt. 370 [Steve Henson] 371 372 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support. 373 As required by RFC5289 these ciphersuites cannot be used if for 374 versions of TLS earlier than 1.2. 375 [Steve Henson] 376 377 *) For FIPS capable OpenSSL interpret a NULL default public key method 378 as unset and return the appopriate default but do *not* set the default. 379 This means we can return the appopriate method in applications that 380 swicth between FIPS and non-FIPS modes. 381 [Steve Henson] 382 383 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an 384 ENGINE is used then we cannot handle that in the FIPS module so we 385 keep original code iff non-FIPS operations are allowed. 386 [Steve Henson] 387 388 *) Add -attime option to openssl utilities. 389 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson] 390 391 *) Redirect DSA and DH operations to FIPS module in FIPS mode. 392 [Steve Henson] 393 394 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use 395 FIPS EC methods unconditionally for now. 396 [Steve Henson] 397 398 *) New build option no-ec2m to disable characteristic 2 code. 399 [Steve Henson] 400 401 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not 402 all cases can be covered as some introduce binary incompatibilities. 403 [Steve Henson] 404 405 *) Redirect RSA operations to FIPS module including keygen, 406 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods. 407 [Steve Henson] 408 409 *) Add similar low level API blocking to ciphers. 410 [Steve Henson] 411 412 *) Low level digest APIs are not approved in FIPS mode: any attempt 413 to use these will cause a fatal error. Applications that *really* want 414 to use them can use the private_* version instead. 415 [Steve Henson] 416 417 *) Redirect cipher operations to FIPS module for FIPS builds. 418 [Steve Henson] 419 420 *) Redirect digest operations to FIPS module for FIPS builds. 421 [Steve Henson] 422 423 *) Update build system to add "fips" flag which will link in fipscanister.o 424 for static and shared library builds embedding a signature if needed. 425 [Steve Henson] 426 427 *) Output TLS supported curves in preference order instead of numerical 428 order. This is currently hardcoded for the highest order curves first. 429 This should be configurable so applications can judge speed vs strength. 430 [Steve Henson] 431 432 *) Add TLS v1.2 server support for client authentication. 433 [Steve Henson] 434 435 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers 436 and enable MD5. 437 [Steve Henson] 438 439 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying 440 FIPS modules versions. 441 [Steve Henson] 442 443 *) Add TLS v1.2 client side support for client authentication. Keep cache 444 of handshake records longer as we don't know the hash algorithm to use 445 until after the certificate request message is received. 446 [Steve Henson] 447 448 *) Initial TLS v1.2 client support. Add a default signature algorithms 449 extension including all the algorithms we support. Parse new signature 450 format in client key exchange. Relax some ECC signing restrictions for 451 TLS v1.2 as indicated in RFC5246. 452 [Steve Henson] 453 454 *) Add server support for TLS v1.2 signature algorithms extension. Switch 455 to new signature format when needed using client digest preference. 456 All server ciphersuites should now work correctly in TLS v1.2. No client 457 support yet and no support for client certificates. 458 [Steve Henson] 459 460 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch 461 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based 462 ciphersuites. At present only RSA key exchange ciphersuites work with 463 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete 464 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods 465 and version checking. 466 [Steve Henson] 467 468 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled 469 with this defined it will not be affected by any changes to ssl internal 470 structures. Add several utility functions to allow openssl application 471 to work with OPENSSL_NO_SSL_INTERN defined. 472 [Steve Henson] 473 474 *) Add SRP support. 475 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie] 476 477 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id. 478 [Steve Henson] 479 480 *) Permit abbreviated handshakes when renegotiating using the function 481 SSL_renegotiate_abbreviated(). 482 [Robin Seggelmann <seggelmann@fh-muenster.de>] 483 484 *) Add call to ENGINE_register_all_complete() to 485 ENGINE_load_builtin_engines(), so some implementations get used 486 automatically instead of needing explicit application support. 487 [Steve Henson] 488 489 *) Add support for TLS key exporter as described in RFC5705. 490 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson] 491 492 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only 493 a few changes are required: 494 495 Add SSL_OP_NO_TLSv1_1 flag. 496 Add TLSv1_1 methods. 497 Update version checking logic to handle version 1.1. 498 Add explicit IV handling (ported from DTLS code). 499 Add command line options to s_client/s_server. 500 [Steve Henson] 501 502 Changes between 1.0.0j and 1.0.0k [5 Feb 2013] 503 504 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time. 505 506 This addresses the flaw in CBC record processing discovered by 507 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found 508 at: http://www.isg.rhul.ac.uk/tls/ 509 510 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 511 Security Group at Royal Holloway, University of London 512 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and 513 Emilia K�sper for the initial patch. 514 (CVE-2013-0169) 515 [Emilia K�sper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson] 516 517 *) Return an error when checking OCSP signatures when key is NULL. 518 This fixes a DoS attack. (CVE-2013-0166) 519 [Steve Henson] 520 521 *) Call OCSP Stapling callback after ciphersuite has been chosen, so 522 the right response is stapled. Also change SSL_get_certificate() 523 so it returns the certificate actually sent. 524 See http://rt.openssl.org/Ticket/Display.html?id=2836. 525 (This is a backport) 526 [Rob Stradling <rob.stradling@comodo.com>] 527 528 *) Fix possible deadlock when decoding public keys. 529 [Steve Henson] 530 531 Changes between 1.0.0i and 1.0.0j [10 May 2012] 532 533 [NB: OpenSSL 1.0.0i and later 1.0.0 patch levels were released after 534 OpenSSL 1.0.1.] 535 536 *) Sanity check record length before skipping explicit IV in DTLS 537 to fix DoS attack. 538 539 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic 540 fuzzing as a service testing platform. 541 (CVE-2012-2333) 542 [Steve Henson] 543 544 *) Initialise tkeylen properly when encrypting CMS messages. 545 Thanks to Solar Designer of Openwall for reporting this issue. 546 [Steve Henson] 547 548 Changes between 1.0.0h and 1.0.0i [19 Apr 2012] 549 550 *) Check for potentially exploitable overflows in asn1_d2i_read_bio 551 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer 552 in CRYPTO_realloc_clean. 553 554 Thanks to Tavis Ormandy, Google Security Team, for discovering this 555 issue and to Adam Langley <agl@chromium.org> for fixing it. 556 (CVE-2012-2110) 557 [Adam Langley (Google), Tavis Ormandy, Google Security Team] 558 559 Changes between 1.0.0g and 1.0.0h [12 Mar 2012] 560 561 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness 562 in CMS and PKCS7 code. When RSA decryption fails use a random key for 563 content decryption and always return the same error. Note: this attack 564 needs on average 2^20 messages so it only affects automated senders. The 565 old behaviour can be reenabled in the CMS code by setting the 566 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where 567 an MMA defence is not necessary. 568 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering 569 this issue. (CVE-2012-0884) 570 [Steve Henson] 571 572 *) Fix CVE-2011-4619: make sure we really are receiving a 573 client hello before rejecting multiple SGC restarts. Thanks to 574 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug. 575 [Steve Henson] 576 577 Changes between 1.0.0f and 1.0.0g [18 Jan 2012] 578 579 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109. 580 Thanks to Antonio Martin, Enterprise Secure Access Research and 581 Development, Cisco Systems, Inc. for discovering this bug and 582 preparing a fix. (CVE-2012-0050) 583 [Antonio Martin] 584 585 Changes between 1.0.0e and 1.0.0f [4 Jan 2012] 586 587 *) Nadhem Alfardan and Kenny Paterson have discovered an extension 588 of the Vaudenay padding oracle attack on CBC mode encryption 589 which enables an efficient plaintext recovery attack against 590 the OpenSSL implementation of DTLS. Their attack exploits timing 591 differences arising during decryption processing. A research 592 paper describing this attack can be found at: 593 http://www.isg.rhul.ac.uk/~kp/dtls.pdf 594 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 595 Security Group at Royal Holloway, University of London 596 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann 597 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de> 598 for preparing the fix. (CVE-2011-4108) 599 [Robin Seggelmann, Michael Tuexen] 600 601 *) Clear bytes used for block padding of SSL 3.0 records. 602 (CVE-2011-4576) 603 [Adam Langley (Google)] 604 605 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George 606 Kadianakis <desnacked@gmail.com> for discovering this issue and 607 Adam Langley for preparing the fix. (CVE-2011-4619) 608 [Adam Langley (Google)] 609 610 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027) 611 [Andrey Kulikov <amdeich@gmail.com>] 612 613 *) Prevent malformed RFC3779 data triggering an assertion failure. 614 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw 615 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577) 616 [Rob Austein <sra@hactrn.net>] 617 618 *) Improved PRNG seeding for VOS. 619 [Paul Green <Paul.Green@stratus.com>] 620 621 *) Fix ssl_ciph.c set-up race. 622 [Adam Langley (Google)] 623 624 *) Fix spurious failures in ecdsatest.c. 625 [Emilia K�sper (Google)] 626 627 *) Fix the BIO_f_buffer() implementation (which was mixing different 628 interpretations of the '..._len' fields). 629 [Adam Langley (Google)] 630 631 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than 632 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent 633 threads won't reuse the same blinding coefficients. 634 635 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING 636 lock to call BN_BLINDING_invert_ex, and avoids one use of 637 BN_BLINDING_update for each BN_BLINDING structure (previously, 638 the last update always remained unused). 639 [Emilia K�sper (Google)] 640 641 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf. 642 [Bob Buckholz (Google)] 643 644 Changes between 1.0.0d and 1.0.0e [6 Sep 2011] 645 646 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted 647 by initialising X509_STORE_CTX properly. (CVE-2011-3207) 648 [Kaspar Brand <ossl@velox.ch>] 649 650 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular 651 for multi-threaded use of ECDH. (CVE-2011-3210) 652 [Adam Langley (Google)] 653 654 *) Fix x509_name_ex_d2i memory leak on bad inputs. 655 [Bodo Moeller] 656 657 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check 658 signature public key algorithm by using OID xref utilities instead. 659 Before this you could only use some ECC ciphersuites with SHA1 only. 660 [Steve Henson] 661 662 *) Add protection against ECDSA timing attacks as mentioned in the paper 663 by Billy Bob Brumley and Nicola Tuveri, see: 664 665 http://eprint.iacr.org/2011/232.pdf 666 667 [Billy Bob Brumley and Nicola Tuveri] 668 669 Changes between 1.0.0c and 1.0.0d [8 Feb 2011] 670 671 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014 672 [Neel Mehta, Adam Langley, Bodo Moeller (Google)] 673 674 *) Fix bug in string printing code: if *any* escaping is enabled we must 675 escape the escape character (backslash) or the resulting string is 676 ambiguous. 677 [Steve Henson] 678 679 Changes between 1.0.0b and 1.0.0c [2 Dec 2010] 680 681 *) Disable code workaround for ancient and obsolete Netscape browsers 682 and servers: an attacker can use it in a ciphersuite downgrade attack. 683 Thanks to Martin Rex for discovering this bug. CVE-2010-4180 684 [Steve Henson] 685 686 *) Fixed J-PAKE implementation error, originally discovered by 687 Sebastien Martini, further info and confirmation from Stefan 688 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252 689 [Ben Laurie] 690 691 Changes between 1.0.0a and 1.0.0b [16 Nov 2010] 692 693 *) Fix extension code to avoid race conditions which can result in a buffer 694 overrun vulnerability: resumed sessions must not be modified as they can 695 be shared by multiple threads. CVE-2010-3864 696 [Steve Henson] 697 698 *) Fix WIN32 build system to correctly link an ENGINE directory into 699 a DLL. 700 [Steve Henson] 701 702 Changes between 1.0.0 and 1.0.0a [01 Jun 2010] 703 704 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover 705 (CVE-2010-1633) 706 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>] 707 708 Changes between 0.9.8n and 1.0.0 [29 Mar 2010] 709 710 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher 711 context. The operation can be customised via the ctrl mechanism in 712 case ENGINEs want to include additional functionality. 713 [Steve Henson] 714 715 *) Tolerate yet another broken PKCS#8 key format: private key value negative. 716 [Steve Henson] 717 718 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to 719 output hashes compatible with older versions of OpenSSL. 720 [Willy Weisz <weisz@vcpc.univie.ac.at>] 721 722 *) Fix compression algorithm handling: if resuming a session use the 723 compression algorithm of the resumed session instead of determining 724 it from client hello again. Don't allow server to change algorithm. 725 [Steve Henson] 726 727 *) Add load_crls() function to apps tidying load_certs() too. Add option 728 to verify utility to allow additional CRLs to be included. 729 [Steve Henson] 730 731 *) Update OCSP request code to permit adding custom headers to the request: 732 some responders need this. 733 [Steve Henson] 734 735 *) The function EVP_PKEY_sign() returns <=0 on error: check return code 736 correctly. 737 [Julia Lawall <julia@diku.dk>] 738 739 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it 740 needlessly dereferenced structures, used obsolete functions and 741 didn't handle all updated verify codes correctly. 742 [Steve Henson] 743 744 *) Disable MD2 in the default configuration. 745 [Steve Henson] 746 747 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to 748 indicate the initial BIO being pushed or popped. This makes it possible 749 to determine whether the BIO is the one explicitly called or as a result 750 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so 751 it handles reference counts correctly and doesn't zero out the I/O bio 752 when it is not being explicitly popped. WARNING: applications which 753 included workarounds for the old buggy behaviour will need to be modified 754 or they could free up already freed BIOs. 755 [Steve Henson] 756 757 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni 758 renaming to all platforms (within the 0.9.8 branch, this was 759 done conditionally on Netware platforms to avoid a name clash). 760 [Guenter <lists@gknw.net>] 761 762 *) Add ECDHE and PSK support to DTLS. 763 [Michael Tuexen <tuexen@fh-muenster.de>] 764 765 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't 766 be used on C++. 767 [Steve Henson] 768 769 *) Add "missing" function EVP_MD_flags() (without this the only way to 770 retrieve a digest flags is by accessing the structure directly. Update 771 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest 772 or cipher is registered as in the "from" argument. Print out all 773 registered digests in the dgst usage message instead of manually 774 attempting to work them out. 775 [Steve Henson] 776 777 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello: 778 this allows the use of compression and extensions. Change default cipher 779 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2 780 by default unless an application cipher string requests it. 781 [Steve Henson] 782 783 *) Alter match criteria in PKCS12_parse(). It used to try to use local 784 key ids to find matching certificates and keys but some PKCS#12 files 785 don't follow the (somewhat unwritten) rules and this strategy fails. 786 Now just gather all certificates together and the first private key 787 then look for the first certificate that matches the key. 788 [Steve Henson] 789 790 *) Support use of registered digest and cipher names for dgst and cipher 791 commands instead of having to add each one as a special case. So now 792 you can do: 793 794 openssl sha256 foo 795 796 as well as: 797 798 openssl dgst -sha256 foo 799 800 and this works for ENGINE based algorithms too. 801 802 [Steve Henson] 803 804 *) Update Gost ENGINE to support parameter files. 805 [Victor B. Wagner <vitus@cryptocom.ru>] 806 807 *) Support GeneralizedTime in ca utility. 808 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson] 809 810 *) Enhance the hash format used for certificate directory links. The new 811 form uses the canonical encoding (meaning equivalent names will work 812 even if they aren't identical) and uses SHA1 instead of MD5. This form 813 is incompatible with the older format and as a result c_rehash should 814 be used to rebuild symbolic links. 815 [Steve Henson] 816 817 *) Make PKCS#8 the default write format for private keys, replacing the 818 traditional format. This form is standardised, more secure and doesn't 819 include an implicit MD5 dependency. 820 [Steve Henson] 821 822 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code 823 committed to OpenSSL should pass this lot as a minimum. 824 [Steve Henson] 825 826 *) Add session ticket override functionality for use by EAP-FAST. 827 [Jouni Malinen <j@w1.fi>] 828 829 *) Modify HMAC functions to return a value. Since these can be implemented 830 in an ENGINE errors can occur. 831 [Steve Henson] 832 833 *) Type-checked OBJ_bsearch_ex. 834 [Ben Laurie] 835 836 *) Type-checked OBJ_bsearch. Also some constification necessitated 837 by type-checking. Still to come: TXT_DB, bsearch(?), 838 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING, 839 CONF_VALUE. 840 [Ben Laurie] 841 842 *) New function OPENSSL_gmtime_adj() to add a specific number of days and 843 seconds to a tm structure directly, instead of going through OS 844 specific date routines. This avoids any issues with OS routines such 845 as the year 2038 bug. New *_adj() functions for ASN1 time structures 846 and X509_time_adj_ex() to cover the extended range. The existing 847 X509_time_adj() is still usable and will no longer have any date issues. 848 [Steve Henson] 849 850 *) Delta CRL support. New use deltas option which will attempt to locate 851 and search any appropriate delta CRLs available. 852 853 This work was sponsored by Google. 854 [Steve Henson] 855 856 *) Support for CRLs partitioned by reason code. Reorganise CRL processing 857 code and add additional score elements. Validate alternate CRL paths 858 as part of the CRL checking and indicate a new error "CRL path validation 859 error" in this case. Applications wanting additional details can use 860 the verify callback and check the new "parent" field. If this is not 861 NULL CRL path validation is taking place. Existing applications wont 862 see this because it requires extended CRL support which is off by 863 default. 864 865 This work was sponsored by Google. 866 [Steve Henson] 867 868 *) Support for freshest CRL extension. 869 870 This work was sponsored by Google. 871 [Steve Henson] 872 873 *) Initial indirect CRL support. Currently only supported in the CRLs 874 passed directly and not via lookup. Process certificate issuer 875 CRL entry extension and lookup CRL entries by bother issuer name 876 and serial number. Check and process CRL issuer entry in IDP extension. 877 878 This work was sponsored by Google. 879 [Steve Henson] 880 881 *) Add support for distinct certificate and CRL paths. The CRL issuer 882 certificate is validated separately in this case. Only enabled if 883 an extended CRL support flag is set: this flag will enable additional 884 CRL functionality in future. 885 886 This work was sponsored by Google. 887 [Steve Henson] 888 889 *) Add support for policy mappings extension. 890 891 This work was sponsored by Google. 892 [Steve Henson] 893 894 *) Fixes to pathlength constraint, self issued certificate handling, 895 policy processing to align with RFC3280 and PKITS tests. 896 897 This work was sponsored by Google. 898 [Steve Henson] 899 900 *) Support for name constraints certificate extension. DN, email, DNS 901 and URI types are currently supported. 902 903 This work was sponsored by Google. 904 [Steve Henson] 905 906 *) To cater for systems that provide a pointer-based thread ID rather 907 than numeric, deprecate the current numeric thread ID mechanism and 908 replace it with a structure and associated callback type. This 909 mechanism allows a numeric "hash" to be extracted from a thread ID in 910 either case, and on platforms where pointers are larger than 'long', 911 mixing is done to help ensure the numeric 'hash' is usable even if it 912 can't be guaranteed unique. The default mechanism is to use "&errno" 913 as a pointer-based thread ID to distinguish between threads. 914 915 Applications that want to provide their own thread IDs should now use 916 CRYPTO_THREADID_set_callback() to register a callback that will call 917 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer(). 918 919 Note that ERR_remove_state() is now deprecated, because it is tied 920 to the assumption that thread IDs are numeric. ERR_remove_state(0) 921 to free the current thread's error state should be replaced by 922 ERR_remove_thread_state(NULL). 923 924 (This new approach replaces the functions CRYPTO_set_idptr_callback(), 925 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in 926 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an 927 application was previously providing a numeric thread callback that 928 was inappropriate for distinguishing threads, then uniqueness might 929 have been obtained with &errno that happened immediately in the 930 intermediate development versions of OpenSSL; this is no longer the 931 case, the numeric thread callback will now override the automatic use 932 of &errno.) 933 [Geoff Thorpe, with help from Bodo Moeller] 934 935 *) Initial support for different CRL issuing certificates. This covers a 936 simple case where the self issued certificates in the chain exist and 937 the real CRL issuer is higher in the existing chain. 938 939 This work was sponsored by Google. 940 [Steve Henson] 941 942 *) Removed effectively defunct crypto/store from the build. 943 [Ben Laurie] 944 945 *) Revamp of STACK to provide stronger type-checking. Still to come: 946 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE, 947 ASN1_STRING, CONF_VALUE. 948 [Ben Laurie] 949 950 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer 951 RAM on SSL connections. This option can save about 34k per idle SSL. 952 [Nick Mathewson] 953 954 *) Revamp of LHASH to provide stronger type-checking. Still to come: 955 STACK, TXT_DB, bsearch, qsort. 956 [Ben Laurie] 957 958 *) Initial support for Cryptographic Message Syntax (aka CMS) based 959 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility, 960 support for data, signedData, compressedData, digestedData and 961 encryptedData, envelopedData types included. Scripts to check against 962 RFC4134 examples draft and interop and consistency checks of many 963 content types and variants. 964 [Steve Henson] 965 966 *) Add options to enc utility to support use of zlib compression BIO. 967 [Steve Henson] 968 969 *) Extend mk1mf to support importing of options and assembly language 970 files from Configure script, currently only included in VC-WIN32. 971 The assembly language rules can now optionally generate the source 972 files from the associated perl scripts. 973 [Steve Henson] 974 975 *) Implement remaining functionality needed to support GOST ciphersuites. 976 Interop testing has been performed using CryptoPro implementations. 977 [Victor B. Wagner <vitus@cryptocom.ru>] 978 979 *) s390x assembler pack. 980 [Andy Polyakov] 981 982 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU 983 "family." 984 [Andy Polyakov] 985 986 *) Implement Opaque PRF Input TLS extension as specified in 987 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an 988 official specification yet and no extension type assignment by 989 IANA exists, this extension (for now) will have to be explicitly 990 enabled when building OpenSSL by providing the extension number 991 to use. For example, specify an option 992 993 -DTLSEXT_TYPE_opaque_prf_input=0x9527 994 995 to the "config" or "Configure" script to enable the extension, 996 assuming extension number 0x9527 (which is a completely arbitrary 997 and unofficial assignment based on the MD5 hash of the Internet 998 Draft). Note that by doing so, you potentially lose 999 interoperability with other TLS implementations since these might 1000 be using the same extension number for other purposes. 1001 1002 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the 1003 opaque PRF input value to use in the handshake. This will create 1004 an interal copy of the length-'len' string at 'src', and will 1005 return non-zero for success. 1006 1007 To get more control and flexibility, provide a callback function 1008 by using 1009 1010 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb) 1011 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg) 1012 1013 where 1014 1015 int (*cb)(SSL *, void *peerinput, size_t len, void *arg); 1016 void *arg; 1017 1018 Callback function 'cb' will be called in handshakes, and is 1019 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate. 1020 Argument 'arg' is for application purposes (the value as given to 1021 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly 1022 be provided to the callback function). The callback function 1023 has to return non-zero to report success: usually 1 to use opaque 1024 PRF input just if possible, or 2 to enforce use of the opaque PRF 1025 input. In the latter case, the library will abort the handshake 1026 if opaque PRF input is not successfully negotiated. 1027 1028 Arguments 'peerinput' and 'len' given to the callback function 1029 will always be NULL and 0 in the case of a client. A server will 1030 see the client's opaque PRF input through these variables if 1031 available (NULL and 0 otherwise). Note that if the server 1032 provides an opaque PRF input, the length must be the same as the 1033 length of the client's opaque PRF input. 1034 1035 Note that the callback function will only be called when creating 1036 a new session (session resumption can resume whatever was 1037 previously negotiated), and will not be called in SSL 2.0 1038 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or 1039 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended 1040 for applications that need to enforce opaque PRF input. 1041 1042 [Bodo Moeller] 1043 1044 *) Update ssl code to support digests other than SHA1+MD5 for handshake 1045 MAC. 1046 1047 [Victor B. Wagner <vitus@cryptocom.ru>] 1048 1049 *) Add RFC4507 support to OpenSSL. This includes the corrections in 1050 RFC4507bis. The encrypted ticket format is an encrypted encoded 1051 SSL_SESSION structure, that way new session features are automatically 1052 supported. 1053 1054 If a client application caches session in an SSL_SESSION structure 1055 support is transparent because tickets are now stored in the encoded 1056 SSL_SESSION. 1057 1058 The SSL_CTX structure automatically generates keys for ticket 1059 protection in servers so again support should be possible 1060 with no application modification. 1061 1062 If a client or server wishes to disable RFC4507 support then the option 1063 SSL_OP_NO_TICKET can be set. 1064 1065 Add a TLS extension debugging callback to allow the contents of any client 1066 or server extensions to be examined. 1067 1068 This work was sponsored by Google. 1069 [Steve Henson] 1070 1071 *) Final changes to avoid use of pointer pointer casts in OpenSSL. 1072 OpenSSL should now compile cleanly on gcc 4.2 1073 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson] 1074 1075 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC 1076 support including streaming MAC support: this is required for GOST 1077 ciphersuite support. 1078 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson] 1079 1080 *) Add option -stream to use PKCS#7 streaming in smime utility. New 1081 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream() 1082 to output in BER and PEM format. 1083 [Steve Henson] 1084 1085 *) Experimental support for use of HMAC via EVP_PKEY interface. This 1086 allows HMAC to be handled via the EVP_DigestSign*() interface. The 1087 EVP_PKEY "key" in this case is the HMAC key, potentially allowing 1088 ENGINE support for HMAC keys which are unextractable. New -mac and 1089 -macopt options to dgst utility. 1090 [Steve Henson] 1091 1092 *) New option -sigopt to dgst utility. Update dgst to use 1093 EVP_Digest{Sign,Verify}*. These two changes make it possible to use 1094 alternative signing paramaters such as X9.31 or PSS in the dgst 1095 utility. 1096 [Steve Henson] 1097 1098 *) Change ssl_cipher_apply_rule(), the internal function that does 1099 the work each time a ciphersuite string requests enabling 1100 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or 1101 removing ("!foo+bar") a class of ciphersuites: Now it maintains 1102 the order of disabled ciphersuites such that those ciphersuites 1103 that most recently went from enabled to disabled not only stay 1104 in order with respect to each other, but also have higher priority 1105 than other disabled ciphersuites the next time ciphersuites are 1106 enabled again. 1107 1108 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable 1109 the same ciphersuites as with "HIGH" alone, but in a specific 1110 order where the PSK ciphersuites come first (since they are the 1111 most recently disabled ciphersuites when "HIGH" is parsed). 1112 1113 Also, change ssl_create_cipher_list() (using this new 1114 funcionality) such that between otherwise identical 1115 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in 1116 the default order. 1117 [Bodo Moeller] 1118 1119 *) Change ssl_create_cipher_list() so that it automatically 1120 arranges the ciphersuites in reasonable order before starting 1121 to process the rule string. Thus, the definition for "DEFAULT" 1122 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but 1123 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH". 1124 This makes it much easier to arrive at a reasonable default order 1125 in applications for which anonymous ciphers are OK (meaning 1126 that you can't actually use DEFAULT). 1127 [Bodo Moeller; suggested by Victor Duchovni] 1128 1129 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string 1130 processing) into multiple integers instead of setting 1131 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK", 1132 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer. 1133 (These masks as well as the individual bit definitions are hidden 1134 away into the non-exported interface ssl/ssl_locl.h, so this 1135 change to the definition of the SSL_CIPHER structure shouldn't 1136 affect applications.) This give us more bits for each of these 1137 categories, so there is no longer a need to coagulate AES128 and 1138 AES256 into a single algorithm bit, and to coagulate Camellia128 1139 and Camellia256 into a single algorithm bit, which has led to all 1140 kinds of kludges. 1141 1142 Thus, among other things, the kludge introduced in 0.9.7m and 1143 0.9.8e for masking out AES256 independently of AES128 or masking 1144 out Camellia256 independently of AES256 is not needed here in 0.9.9. 1145 1146 With the change, we also introduce new ciphersuite aliases that 1147 so far were missing: "AES128", "AES256", "CAMELLIA128", and 1148 "CAMELLIA256". 1149 [Bodo Moeller] 1150 1151 *) Add support for dsa-with-SHA224 and dsa-with-SHA256. 1152 Use the leftmost N bytes of the signature input if the input is 1153 larger than the prime q (with N being the size in bytes of q). 1154 [Nils Larsch] 1155 1156 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses 1157 it yet and it is largely untested. 1158 [Steve Henson] 1159 1160 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types. 1161 [Nils Larsch] 1162 1163 *) Initial incomplete changes to avoid need for function casts in OpenSSL 1164 some compilers (gcc 4.2 and later) reject their use. Safestack is 1165 reimplemented. Update ASN1 to avoid use of legacy functions. 1166 [Steve Henson] 1167 1168 *) Win32/64 targets are linked with Winsock2. 1169 [Andy Polyakov] 1170 1171 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected 1172 to external functions. This can be used to increase CRL handling 1173 efficiency especially when CRLs are very large by (for example) storing 1174 the CRL revoked certificates in a database. 1175 [Steve Henson] 1176 1177 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so 1178 new CRLs added to a directory can be used. New command line option 1179 -verify_return_error to s_client and s_server. This causes real errors 1180 to be returned by the verify callback instead of carrying on no matter 1181 what. This reflects the way a "real world" verify callback would behave. 1182 [Steve Henson] 1183 1184 *) GOST engine, supporting several GOST algorithms and public key formats. 1185 Kindly donated by Cryptocom. 1186 [Cryptocom] 1187 1188 *) Partial support for Issuing Distribution Point CRL extension. CRLs 1189 partitioned by DP are handled but no indirect CRL or reason partitioning 1190 (yet). Complete overhaul of CRL handling: now the most suitable CRL is 1191 selected via a scoring technique which handles IDP and AKID in CRLs. 1192 [Steve Henson] 1193 1194 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which 1195 will ultimately be used for all verify operations: this will remove the 1196 X509_STORE dependency on certificate verification and allow alternative 1197 lookup methods. X509_STORE based implementations of these two callbacks. 1198 [Steve Henson] 1199 1200 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names. 1201 Modify get_crl() to find a valid (unexpired) CRL if possible. 1202 [Steve Henson] 1203 1204 *) New function X509_CRL_match() to check if two CRLs are identical. Normally 1205 this would be called X509_CRL_cmp() but that name is already used by 1206 a function that just compares CRL issuer names. Cache several CRL 1207 extensions in X509_CRL structure and cache CRLDP in X509. 1208 [Steve Henson] 1209 1210 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name) 1211 this maps equivalent X509_NAME structures into a consistent structure. 1212 Name comparison can then be performed rapidly using memcmp(). 1213 [Steve Henson] 1214 1215 *) Non-blocking OCSP request processing. Add -timeout option to ocsp 1216 utility. 1217 [Steve Henson] 1218 1219 *) Allow digests to supply their own micalg string for S/MIME type using 1220 the ctrl EVP_MD_CTRL_MICALG. 1221 [Steve Henson] 1222 1223 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the 1224 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN 1225 ctrl. It can then customise the structure before and/or after signing 1226 if necessary. 1227 [Steve Henson] 1228 1229 *) New function OBJ_add_sigid() to allow application defined signature OIDs 1230 to be added to OpenSSLs internal tables. New function OBJ_sigid_free() 1231 to free up any added signature OIDs. 1232 [Steve Henson] 1233 1234 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(), 1235 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal 1236 digest and cipher tables. New options added to openssl utility: 1237 list-message-digest-algorithms and list-cipher-algorithms. 1238 [Steve Henson] 1239 1240 *) Change the array representation of binary polynomials: the list 1241 of degrees of non-zero coefficients is now terminated with -1. 1242 Previously it was terminated with 0, which was also part of the 1243 value; thus, the array representation was not applicable to 1244 polynomials where t^0 has coefficient zero. This change makes 1245 the array representation useful in a more general context. 1246 [Douglas Stebila] 1247 1248 *) Various modifications and fixes to SSL/TLS cipher string 1249 handling. For ECC, the code now distinguishes between fixed ECDH 1250 with RSA certificates on the one hand and with ECDSA certificates 1251 on the other hand, since these are separate ciphersuites. The 1252 unused code for Fortezza ciphersuites has been removed. 1253 1254 For consistency with EDH, ephemeral ECDH is now called "EECDH" 1255 (not "ECDHE"). For consistency with the code for DH 1256 certificates, use of ECDH certificates is now considered ECDH 1257 authentication, not RSA or ECDSA authentication (the latter is 1258 merely the CA's signing algorithm and not actively used in the 1259 protocol). 1260 1261 The temporary ciphersuite alias "ECCdraft" is no longer 1262 available, and ECC ciphersuites are no longer excluded from "ALL" 1263 and "DEFAULT". The following aliases now exist for RFC 4492 1264 ciphersuites, most of these by analogy with the DH case: 1265 1266 kECDHr - ECDH cert, signed with RSA 1267 kECDHe - ECDH cert, signed with ECDSA 1268 kECDH - ECDH cert (signed with either RSA or ECDSA) 1269 kEECDH - ephemeral ECDH 1270 ECDH - ECDH cert or ephemeral ECDH 1271 1272 aECDH - ECDH cert 1273 aECDSA - ECDSA cert 1274 ECDSA - ECDSA cert 1275 1276 AECDH - anonymous ECDH 1277 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH") 1278 1279 [Bodo Moeller] 1280 1281 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported. 1282 Use correct micalg parameters depending on digest(s) in signed message. 1283 [Steve Henson] 1284 1285 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process 1286 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code. 1287 [Steve Henson] 1288 1289 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit 1290 an engine to register a method. Add ENGINE lookups for methods and 1291 functional reference processing. 1292 [Steve Henson] 1293 1294 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of 1295 EVP_{Sign,Verify}* which allow an application to customise the signature 1296 process. 1297 [Steve Henson] 1298 1299 *) New -resign option to smime utility. This adds one or more signers 1300 to an existing PKCS#7 signedData structure. Also -md option to use an 1301 alternative message digest algorithm for signing. 1302 [Steve Henson] 1303 1304 *) Tidy up PKCS#7 routines and add new functions to make it easier to 1305 create PKCS7 structures containing multiple signers. Update smime 1306 application to support multiple signers. 1307 [Steve Henson] 1308 1309 *) New -macalg option to pkcs12 utility to allow setting of an alternative 1310 digest MAC. 1311 [Steve Henson] 1312 1313 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC. 1314 Reorganize PBE internals to lookup from a static table using NIDs, 1315 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl: 1316 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative 1317 PRF which will be automatically used with PBES2. 1318 [Steve Henson] 1319 1320 *) Replace the algorithm specific calls to generate keys in "req" with the 1321 new API. 1322 [Steve Henson] 1323 1324 *) Update PKCS#7 enveloped data routines to use new API. This is now 1325 supported by any public key method supporting the encrypt operation. A 1326 ctrl is added to allow the public key algorithm to examine or modify 1327 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is 1328 a no op. 1329 [Steve Henson] 1330 1331 *) Add a ctrl to asn1 method to allow a public key algorithm to express 1332 a default digest type to use. In most cases this will be SHA1 but some 1333 algorithms (such as GOST) need to specify an alternative digest. The 1334 return value indicates how strong the prefernce is 1 means optional and 1335 2 is mandatory (that is it is the only supported type). Modify 1336 ASN1_item_sign() to accept a NULL digest argument to indicate it should 1337 use the default md. Update openssl utilities to use the default digest 1338 type for signing if it is not explicitly indicated. 1339 [Steve Henson] 1340 1341 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New 1342 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant 1343 signing method from the key type. This effectively removes the link 1344 between digests and public key types. 1345 [Steve Henson] 1346 1347 *) Add an OID cross reference table and utility functions. Its purpose is to 1348 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1, 1349 rsaEncryption. This will allow some of the algorithm specific hackery 1350 needed to use the correct OID to be removed. 1351 [Steve Henson] 1352 1353 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO 1354 structures for PKCS7_sign(). They are now set up by the relevant public 1355 key ASN1 method. 1356 [Steve Henson] 1357 1358 *) Add provisional EC pkey method with support for ECDSA and ECDH. 1359 [Steve Henson] 1360 1361 *) Add support for key derivation (agreement) in the API, DH method and 1362 pkeyutl. 1363 [Steve Henson] 1364 1365 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support 1366 public and private key formats. As a side effect these add additional 1367 command line functionality not previously available: DSA signatures can be 1368 generated and verified using pkeyutl and DH key support and generation in 1369 pkey, genpkey. 1370 [Steve Henson] 1371 1372 *) BeOS support. 1373 [Oliver Tappe <zooey@hirschkaefer.de>] 1374 1375 *) New make target "install_html_docs" installs HTML renditions of the 1376 manual pages. 1377 [Oliver Tappe <zooey@hirschkaefer.de>] 1378 1379 *) New utility "genpkey" this is analagous to "genrsa" etc except it can 1380 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to 1381 support key and parameter generation and add initial key generation 1382 functionality for RSA. 1383 [Steve Henson] 1384 1385 *) Add functions for main EVP_PKEY_method operations. The undocumented 1386 functions EVP_PKEY_{encrypt,decrypt} have been renamed to 1387 EVP_PKEY_{encrypt,decrypt}_old. 1388 [Steve Henson] 1389 1390 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public 1391 key API, doesn't do much yet. 1392 [Steve Henson] 1393 1394 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about 1395 public key algorithms. New option to openssl utility: 1396 "list-public-key-algorithms" to print out info. 1397 [Steve Henson] 1398 1399 *) Implement the Supported Elliptic Curves Extension for 1400 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 1401 [Douglas Stebila] 1402 1403 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or 1404 EVP_CIPHER structures to avoid later problems in EVP_cleanup(). 1405 [Steve Henson] 1406 1407 *) New utilities pkey and pkeyparam. These are similar to algorithm specific 1408 utilities such as rsa, dsa, dsaparam etc except they process any key 1409 type. 1410 [Steve Henson] 1411 1412 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New 1413 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(), 1414 EVP_PKEY_print_param() to print public key data from an EVP_PKEY 1415 structure. 1416 [Steve Henson] 1417 1418 *) Initial support for pluggable public key ASN1. 1419 De-spaghettify the public key ASN1 handling. Move public and private 1420 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate 1421 algorithm specific handling to a single module within the relevant 1422 algorithm directory. Add functions to allow (near) opaque processing 1423 of public and private key structures. 1424 [Steve Henson] 1425 1426 *) Implement the Supported Point Formats Extension for 1427 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 1428 [Douglas Stebila] 1429 1430 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members 1431 for the psk identity [hint] and the psk callback functions to the 1432 SSL_SESSION, SSL and SSL_CTX structure. 1433 1434 New ciphersuites: 1435 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA, 1436 PSK-AES256-CBC-SHA 1437 1438 New functions: 1439 SSL_CTX_use_psk_identity_hint 1440 SSL_get_psk_identity_hint 1441 SSL_get_psk_identity 1442 SSL_use_psk_identity_hint 1443 1444 [Mika Kousa and Pasi Eronen of Nokia Corporation] 1445 1446 *) Add RFC 3161 compliant time stamp request creation, response generation 1447 and response verification functionality. 1448 [Zolt�n Gl�zik <zglozik@opentsa.org>, The OpenTSA Project] 1449 1450 *) Add initial support for TLS extensions, specifically for the server_name 1451 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 1452 have new members for a host name. The SSL data structure has an 1453 additional member SSL_CTX *initial_ctx so that new sessions can be 1454 stored in that context to allow for session resumption, even after the 1455 SSL has been switched to a new SSL_CTX in reaction to a client's 1456 server_name extension. 1457 1458 New functions (subject to change): 1459 1460 SSL_get_servername() 1461 SSL_get_servername_type() 1462 SSL_set_SSL_CTX() 1463 1464 New CTRL codes and macros (subject to change): 1465 1466 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 1467 - SSL_CTX_set_tlsext_servername_callback() 1468 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 1469 - SSL_CTX_set_tlsext_servername_arg() 1470 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 1471 1472 openssl s_client has a new '-servername ...' option. 1473 1474 openssl s_server has new options '-servername_host ...', '-cert2 ...', 1475 '-key2 ...', '-servername_fatal' (subject to change). This allows 1476 testing the HostName extension for a specific single host name ('-cert' 1477 and '-key' remain fallbacks for handshakes without HostName 1478 negotiation). If the unrecogninzed_name alert has to be sent, this by 1479 default is a warning; it becomes fatal with the '-servername_fatal' 1480 option. 1481 1482 [Peter Sylvester, Remy Allais, Christophe Renou] 1483 1484 *) Whirlpool hash implementation is added. 1485 [Andy Polyakov] 1486 1487 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to 1488 bn(64,32). Because of instruction set limitations it doesn't have 1489 any negative impact on performance. This was done mostly in order 1490 to make it possible to share assembler modules, such as bn_mul_mont 1491 implementations, between 32- and 64-bit builds without hassle. 1492 [Andy Polyakov] 1493 1494 *) Move code previously exiled into file crypto/ec/ec2_smpt.c 1495 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP 1496 macro. 1497 [Bodo Moeller] 1498 1499 *) New candidate for BIGNUM assembler implementation, bn_mul_mont, 1500 dedicated Montgomery multiplication procedure, is introduced. 1501 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher 1502 "64-bit" performance on certain 32-bit targets. 1503 [Andy Polyakov] 1504 1505 *) New option SSL_OP_NO_COMP to disable use of compression selectively 1506 in SSL structures. New SSL ctrl to set maximum send fragment size. 1507 Save memory by seeting the I/O buffer sizes dynamically instead of 1508 using the maximum available value. 1509 [Steve Henson] 1510 1511 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code 1512 in addition to the text details. 1513 [Bodo Moeller] 1514 1515 *) Very, very preliminary EXPERIMENTAL support for printing of general 1516 ASN1 structures. This currently produces rather ugly output and doesn't 1517 handle several customised structures at all. 1518 [Steve Henson] 1519 1520 *) Integrated support for PVK file format and some related formats such 1521 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support 1522 these in the 'rsa' and 'dsa' utilities. 1523 [Steve Henson] 1524 1525 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line. 1526 [Steve Henson] 1527 1528 *) Remove the ancient ASN1_METHOD code. This was only ever used in one 1529 place for the (very old) "NETSCAPE" format certificates which are now 1530 handled using new ASN1 code equivalents. 1531 [Steve Henson] 1532 1533 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD 1534 pointer and make the SSL_METHOD parameter in SSL_CTX_new, 1535 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'. 1536 [Nils Larsch] 1537 1538 *) Modify CRL distribution points extension code to print out previously 1539 unsupported fields. Enhance extension setting code to allow setting of 1540 all fields. 1541 [Steve Henson] 1542 1543 *) Add print and set support for Issuing Distribution Point CRL extension. 1544 [Steve Henson] 1545 1546 *) Change 'Configure' script to enable Camellia by default. 1547 [NTT] 1548 1549 Changes between 0.9.8x and 0.9.8y [5 Feb 2013] 1550 1551 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time. 1552 1553 This addresses the flaw in CBC record processing discovered by 1554 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found 1555 at: http://www.isg.rhul.ac.uk/tls/ 1556 1557 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 1558 Security Group at Royal Holloway, University of London 1559 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and 1560 Emilia K�sper for the initial patch. 1561 (CVE-2013-0169) 1562 [Emilia K�sper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson] 1563 1564 *) Return an error when checking OCSP signatures when key is NULL. 1565 This fixes a DoS attack. (CVE-2013-0166) 1566 [Steve Henson] 1567 1568 *) Call OCSP Stapling callback after ciphersuite has been chosen, so 1569 the right response is stapled. Also change SSL_get_certificate() 1570 so it returns the certificate actually sent. 1571 See http://rt.openssl.org/Ticket/Display.html?id=2836. 1572 (This is a backport) 1573 [Rob Stradling <rob.stradling@comodo.com>] 1574 1575 *) Fix possible deadlock when decoding public keys. 1576 [Steve Henson] 1577 1578 Changes between 0.9.8w and 0.9.8x [10 May 2012] 1579 1580 *) Sanity check record length before skipping explicit IV in DTLS 1581 to fix DoS attack. 1582 1583 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic 1584 fuzzing as a service testing platform. 1585 (CVE-2012-2333) 1586 [Steve Henson] 1587 1588 *) Initialise tkeylen properly when encrypting CMS messages. 1589 Thanks to Solar Designer of Openwall for reporting this issue. 1590 [Steve Henson] 1591 1592 Changes between 0.9.8v and 0.9.8w [23 Apr 2012] 1593 1594 *) The fix for CVE-2012-2110 did not take into account that the 1595 'len' argument to BUF_MEM_grow and BUF_MEM_grow_clean is an 1596 int in OpenSSL 0.9.8, making it still vulnerable. Fix by 1597 rejecting negative len parameter. (CVE-2012-2131) 1598 [Tomas Hoger <thoger@redhat.com>] 1599 1600 Changes between 0.9.8u and 0.9.8v [19 Apr 2012] 1601 1602 *) Check for potentially exploitable overflows in asn1_d2i_read_bio 1603 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer 1604 in CRYPTO_realloc_clean. 1605 1606 Thanks to Tavis Ormandy, Google Security Team, for discovering this 1607 issue and to Adam Langley <agl@chromium.org> for fixing it. 1608 (CVE-2012-2110) 1609 [Adam Langley (Google), Tavis Ormandy, Google Security Team] 1610 1611 Changes between 0.9.8t and 0.9.8u [12 Mar 2012] 1612 1613 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness 1614 in CMS and PKCS7 code. When RSA decryption fails use a random key for 1615 content decryption and always return the same error. Note: this attack 1616 needs on average 2^20 messages so it only affects automated senders. The 1617 old behaviour can be reenabled in the CMS code by setting the 1618 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where 1619 an MMA defence is not necessary. 1620 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering 1621 this issue. (CVE-2012-0884) 1622 [Steve Henson] 1623 1624 *) Fix CVE-2011-4619: make sure we really are receiving a 1625 client hello before rejecting multiple SGC restarts. Thanks to 1626 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug. 1627 [Steve Henson] 1628 1629 Changes between 0.9.8s and 0.9.8t [18 Jan 2012] 1630 1631 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109. 1632 Thanks to Antonio Martin, Enterprise Secure Access Research and 1633 Development, Cisco Systems, Inc. for discovering this bug and 1634 preparing a fix. (CVE-2012-0050) 1635 [Antonio Martin] 1636 1637 Changes between 0.9.8r and 0.9.8s [4 Jan 2012] 1638 1639 *) Nadhem Alfardan and Kenny Paterson have discovered an extension 1640 of the Vaudenay padding oracle attack on CBC mode encryption 1641 which enables an efficient plaintext recovery attack against 1642 the OpenSSL implementation of DTLS. Their attack exploits timing 1643 differences arising during decryption processing. A research 1644 paper describing this attack can be found at: 1645 http://www.isg.rhul.ac.uk/~kp/dtls.pdf 1646 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 1647 Security Group at Royal Holloway, University of London 1648 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann 1649 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de> 1650 for preparing the fix. (CVE-2011-4108) 1651 [Robin Seggelmann, Michael Tuexen] 1652 1653 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109) 1654 [Ben Laurie, Kasper <ekasper@google.com>] 1655 1656 *) Clear bytes used for block padding of SSL 3.0 records. 1657 (CVE-2011-4576) 1658 [Adam Langley (Google)] 1659 1660 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George 1661 Kadianakis <desnacked@gmail.com> for discovering this issue and 1662 Adam Langley for preparing the fix. (CVE-2011-4619) 1663 [Adam Langley (Google)] 1664 1665 *) Prevent malformed RFC3779 data triggering an assertion failure. 1666 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw 1667 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577) 1668 [Rob Austein <sra@hactrn.net>] 1669 1670 *) Fix ssl_ciph.c set-up race. 1671 [Adam Langley (Google)] 1672 1673 *) Fix spurious failures in ecdsatest.c. 1674 [Emilia K�sper (Google)] 1675 1676 *) Fix the BIO_f_buffer() implementation (which was mixing different 1677 interpretations of the '..._len' fields). 1678 [Adam Langley (Google)] 1679 1680 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than 1681 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent 1682 threads won't reuse the same blinding coefficients. 1683 1684 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING 1685 lock to call BN_BLINDING_invert_ex, and avoids one use of 1686 BN_BLINDING_update for each BN_BLINDING structure (previously, 1687 the last update always remained unused). 1688 [Emilia K�sper (Google)] 1689 1690 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular 1691 for multi-threaded use of ECDH. 1692 [Adam Langley (Google)] 1693 1694 *) Fix x509_name_ex_d2i memory leak on bad inputs. 1695 [Bodo Moeller] 1696 1697 *) Add protection against ECDSA timing attacks as mentioned in the paper 1698 by Billy Bob Brumley and Nicola Tuveri, see: 1699 1700 http://eprint.iacr.org/2011/232.pdf 1701 1702 [Billy Bob Brumley and Nicola Tuveri] 1703 1704 Changes between 0.9.8q and 0.9.8r [8 Feb 2011] 1705 1706 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014 1707 [Neel Mehta, Adam Langley, Bodo Moeller (Google)] 1708 1709 *) Fix bug in string printing code: if *any* escaping is enabled we must 1710 escape the escape character (backslash) or the resulting string is 1711 ambiguous. 1712 [Steve Henson] 1713 1714 Changes between 0.9.8p and 0.9.8q [2 Dec 2010] 1715 1716 *) Disable code workaround for ancient and obsolete Netscape browsers 1717 and servers: an attacker can use it in a ciphersuite downgrade attack. 1718 Thanks to Martin Rex for discovering this bug. CVE-2010-4180 1719 [Steve Henson] 1720 1721 *) Fixed J-PAKE implementation error, originally discovered by 1722 Sebastien Martini, further info and confirmation from Stefan 1723 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252 1724 [Ben Laurie] 1725 1726 Changes between 0.9.8o and 0.9.8p [16 Nov 2010] 1727 1728 *) Fix extension code to avoid race conditions which can result in a buffer 1729 overrun vulnerability: resumed sessions must not be modified as they can 1730 be shared by multiple threads. CVE-2010-3864 1731 [Steve Henson] 1732 1733 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939 1734 [Steve Henson] 1735 1736 *) Don't reencode certificate when calculating signature: cache and use 1737 the original encoding instead. This makes signature verification of 1738 some broken encodings work correctly. 1739 [Steve Henson] 1740 1741 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT 1742 is also one of the inputs. 1743 [Emilia K�sper <emilia.kasper@esat.kuleuven.be> (Google)] 1744 1745 *) Don't repeatedly append PBE algorithms to table if they already exist. 1746 Sort table on each new add. This effectively makes the table read only 1747 after all algorithms are added and subsequent calls to PKCS12_pbe_add 1748 etc are non-op. 1749 [Steve Henson] 1750 1751 Changes between 0.9.8n and 0.9.8o [01 Jun 2010] 1752 1753 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after 1754 OpenSSL 1.0.0.] 1755 1756 *) Correct a typo in the CMS ASN1 module which can result in invalid memory 1757 access or freeing data twice (CVE-2010-0742) 1758 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>] 1759 1760 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more 1761 common in certificates and some applications which only call 1762 SSL_library_init and not OpenSSL_add_all_algorithms() will fail. 1763 [Steve Henson] 1764 1765 *) VMS fixes: 1766 Reduce copying into .apps and .test in makevms.com 1767 Don't try to use blank CA certificate in CA.com 1768 Allow use of C files from original directories in maketests.com 1769 [Steven M. Schweda" <sms@antinode.info>] 1770 1771 Changes between 0.9.8m and 0.9.8n [24 Mar 2010] 1772 1773 *) When rejecting SSL/TLS records due to an incorrect version number, never 1774 update s->server with a new major version number. As of 1775 - OpenSSL 0.9.8m if 'short' is a 16-bit type, 1776 - OpenSSL 0.9.8f if 'short' is longer than 16 bits, 1777 the previous behavior could result in a read attempt at NULL when 1778 receiving specific incorrect SSL/TLS records once record payload 1779 protection is active. (CVE-2010-0740) 1780 [Bodo Moeller, Adam Langley <agl@chromium.org>] 1781 1782 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL 1783 could be crashed if the relevant tables were not present (e.g. chrooted). 1784 [Tomas Hoger <thoger@redhat.com>] 1785 1786 Changes between 0.9.8l and 0.9.8m [25 Feb 2010] 1787 1788 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245) 1789 [Martin Olsson, Neel Mehta] 1790 1791 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to 1792 accommodate for stack sorting, always a write lock!). 1793 [Bodo Moeller] 1794 1795 *) On some versions of WIN32 Heap32Next is very slow. This can cause 1796 excessive delays in the RAND_poll(): over a minute. As a workaround 1797 include a time check in the inner Heap32Next loop too. 1798 [Steve Henson] 1799 1800 *) The code that handled flushing of data in SSL/TLS originally used the 1801 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused 1802 the problem outlined in PR#1949. The fix suggested there however can 1803 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions 1804 of Apache). So instead simplify the code to flush unconditionally. 1805 This should be fine since flushing with no data to flush is a no op. 1806 [Steve Henson] 1807 1808 *) Handle TLS versions 2.0 and later properly and correctly use the 1809 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way 1810 off ancient servers have a habit of sticking around for a while... 1811 [Steve Henson] 1812 1813 *) Modify compression code so it frees up structures without using the 1814 ex_data callbacks. This works around a problem where some applications 1815 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when 1816 restarting) then use compression (e.g. SSL with compression) later. 1817 This results in significant per-connection memory leaks and 1818 has caused some security issues including CVE-2008-1678 and 1819 CVE-2009-4355. 1820 [Steve Henson] 1821 1822 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't 1823 change when encrypting or decrypting. 1824 [Bodo Moeller] 1825 1826 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to 1827 connect and renegotiate with servers which do not support RI. 1828 Until RI is more widely deployed this option is enabled by default. 1829 [Steve Henson] 1830 1831 *) Add "missing" ssl ctrls to clear options and mode. 1832 [Steve Henson] 1833 1834 *) If client attempts to renegotiate and doesn't support RI respond with 1835 a no_renegotiation alert as required by RFC5746. Some renegotiating 1836 TLS clients will continue a connection gracefully when they receive 1837 the alert. Unfortunately OpenSSL mishandled this alert and would hang 1838 waiting for a server hello which it will never receive. Now we treat a 1839 received no_renegotiation alert as a fatal error. This is because 1840 applications requesting a renegotiation might well expect it to succeed 1841 and would have no code in place to handle the server denying it so the 1842 only safe thing to do is to terminate the connection. 1843 [Steve Henson] 1844 1845 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if 1846 peer supports secure renegotiation and 0 otherwise. Print out peer 1847 renegotiation support in s_client/s_server. 1848 [Steve Henson] 1849 1850 *) Replace the highly broken and deprecated SPKAC certification method with 1851 the updated NID creation version. This should correctly handle UTF8. 1852 [Steve Henson] 1853 1854 *) Implement RFC5746. Re-enable renegotiation but require the extension 1855 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION 1856 turns out to be a bad idea. It has been replaced by 1857 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with 1858 SSL_CTX_set_options(). This is really not recommended unless you 1859 know what you are doing. 1860 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson] 1861 1862 *) Fixes to stateless session resumption handling. Use initial_ctx when 1863 issuing and attempting to decrypt tickets in case it has changed during 1864 servername handling. Use a non-zero length session ID when attempting 1865 stateless session resumption: this makes it possible to determine if 1866 a resumption has occurred immediately after receiving server hello 1867 (several places in OpenSSL subtly assume this) instead of later in 1868 the handshake. 1869 [Steve Henson] 1870 1871 *) The functions ENGINE_ctrl(), OPENSSL_isservice(), 1872 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error 1873 fixes for a few places where the return code is not checked 1874 correctly. 1875 [Julia Lawall <julia@diku.dk>] 1876 1877 *) Add --strict-warnings option to Configure script to include devteam 1878 warnings in other configurations. 1879 [Steve Henson] 1880 1881 *) Add support for --libdir option and LIBDIR variable in makefiles. This 1882 makes it possible to install openssl libraries in locations which 1883 have names other than "lib", for example "/usr/lib64" which some 1884 systems need. 1885 [Steve Henson, based on patch from Jeremy Utley] 1886 1887 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of 1888 X690 8.9.12 and can produce some misleading textual output of OIDs. 1889 [Steve Henson, reported by Dan Kaminsky] 1890 1891 *) Delete MD2 from algorithm tables. This follows the recommendation in 1892 several standards that it is not used in new applications due to 1893 several cryptographic weaknesses. For binary compatibility reasons 1894 the MD2 API is still compiled in by default. 1895 [Steve Henson] 1896 1897 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved 1898 and restored. 1899 [Steve Henson] 1900 1901 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and 1902 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name 1903 clash. 1904 [Guenter <lists@gknw.net>] 1905 1906 *) Fix the server certificate chain building code to use X509_verify_cert(), 1907 it used to have an ad-hoc builder which was unable to cope with anything 1908 other than a simple chain. 1909 [David Woodhouse <dwmw2@infradead.org>, Steve Henson] 1910 1911 *) Don't check self signed certificate signatures in X509_verify_cert() 1912 by default (a flag can override this): it just wastes time without 1913 adding any security. As a useful side effect self signed root CAs 1914 with non-FIPS digests are now usable in FIPS mode. 1915 [Steve Henson] 1916 1917 *) In dtls1_process_out_of_seq_message() the check if the current message 1918 is already buffered was missing. For every new message was memory 1919 allocated, allowing an attacker to perform an denial of service attack 1920 with sending out of seq handshake messages until there is no memory 1921 left. Additionally every future messege was buffered, even if the 1922 sequence number made no sense and would be part of another handshake. 1923 So only messages with sequence numbers less than 10 in advance will be 1924 buffered. (CVE-2009-1378) 1925 [Robin Seggelmann, discovered by Daniel Mentz] 1926 1927 *) Records are buffered if they arrive with a future epoch to be 1928 processed after finishing the corresponding handshake. There is 1929 currently no limitation to this buffer allowing an attacker to perform 1930 a DOS attack with sending records with future epochs until there is no 1931 memory left. This patch adds the pqueue_size() function to detemine 1932 the size of a buffer and limits the record buffer to 100 entries. 1933 (CVE-2009-1377) 1934 [Robin Seggelmann, discovered by Daniel Mentz] 1935 1936 *) Keep a copy of frag->msg_header.frag_len so it can be used after the 1937 parent structure is freed. (CVE-2009-1379) 1938 [Daniel Mentz] 1939 1940 *) Handle non-blocking I/O properly in SSL_shutdown() call. 1941 [Darryl Miles <darryl-mailinglists@netbauds.net>] 1942 1943 *) Add 2.5.4.* OIDs 1944 [Ilya O. <vrghost@gmail.com>] 1945 1946 Changes between 0.9.8k and 0.9.8l [5 Nov 2009] 1947 1948 *) Disable renegotiation completely - this fixes a severe security 1949 problem (CVE-2009-3555) at the cost of breaking all 1950 renegotiation. Renegotiation can be re-enabled by setting 1951 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at 1952 run-time. This is really not recommended unless you know what 1953 you're doing. 1954 [Ben Laurie] 1955 1956 Changes between 0.9.8j and 0.9.8k [25 Mar 2009] 1957 1958 *) Don't set val to NULL when freeing up structures, it is freed up by 1959 underlying code. If sizeof(void *) > sizeof(long) this can result in 1960 zeroing past the valid field. (CVE-2009-0789) 1961 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>] 1962 1963 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not 1964 checked correctly. This would allow some invalid signed attributes to 1965 appear to verify correctly. (CVE-2009-0591) 1966 [Ivan Nestlerode <inestlerode@us.ibm.com>] 1967 1968 *) Reject UniversalString and BMPString types with invalid lengths. This 1969 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have 1970 a legal length. (CVE-2009-0590) 1971 [Steve Henson] 1972 1973 *) Set S/MIME signing as the default purpose rather than setting it 1974 unconditionally. This allows applications to override it at the store 1975 level. 1976 [Steve Henson] 1977 1978 *) Permit restricted recursion of ASN1 strings. This is needed in practice 1979 to handle some structures. 1980 [Steve Henson] 1981 1982 *) Improve efficiency of mem_gets: don't search whole buffer each time 1983 for a '\n' 1984 [Jeremy Shapiro <jnshapir@us.ibm.com>] 1985 1986 *) New -hex option for openssl rand. 1987 [Matthieu Herrb] 1988 1989 *) Print out UTF8String and NumericString when parsing ASN1. 1990 [Steve Henson] 1991 1992 *) Support NumericString type for name components. 1993 [Steve Henson] 1994 1995 *) Allow CC in the environment to override the automatically chosen 1996 compiler. Note that nothing is done to ensure flags work with the 1997 chosen compiler. 1998 [Ben Laurie] 1999 2000 Changes between 0.9.8i and 0.9.8j [07 Jan 2009] 2001 2002 *) Properly check EVP_VerifyFinal() and similar return values 2003 (CVE-2008-5077). 2004 [Ben Laurie, Bodo Moeller, Google Security Team] 2005 2006 *) Enable TLS extensions by default. 2007 [Ben Laurie] 2008 2009 *) Allow the CHIL engine to be loaded, whether the application is 2010 multithreaded or not. (This does not release the developer from the 2011 obligation to set up the dynamic locking callbacks.) 2012 [Sander Temme <sander@temme.net>] 2013 2014 *) Use correct exit code if there is an error in dgst command. 2015 [Steve Henson; problem pointed out by Roland Dirlewanger] 2016 2017 *) Tweak Configure so that you need to say "experimental-jpake" to enable 2018 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications. 2019 [Bodo Moeller] 2020 2021 *) Add experimental JPAKE support, including demo authentication in 2022 s_client and s_server. 2023 [Ben Laurie] 2024 2025 *) Set the comparison function in v3_addr_canonize(). 2026 [Rob Austein <sra@hactrn.net>] 2027 2028 *) Add support for XMPP STARTTLS in s_client. 2029 [Philip Paeps <philip@freebsd.org>] 2030 2031 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior 2032 to ensure that even with this option, only ciphersuites in the 2033 server's preference list will be accepted. (Note that the option 2034 applies only when resuming a session, so the earlier behavior was 2035 just about the algorithm choice for symmetric cryptography.) 2036 [Bodo Moeller] 2037 2038 Changes between 0.9.8h and 0.9.8i [15 Sep 2008] 2039 2040 *) Fix NULL pointer dereference if a DTLS server received 2041 ChangeCipherSpec as first record (CVE-2009-1386). 2042 [PR #1679] 2043 2044 *) Fix a state transitition in s3_srvr.c and d1_srvr.c 2045 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...). 2046 [Nagendra Modadugu] 2047 2048 *) The fix in 0.9.8c that supposedly got rid of unsafe 2049 double-checked locking was incomplete for RSA blinding, 2050 addressing just one layer of what turns out to have been 2051 doubly unsafe triple-checked locking. 2052 2053 So now fix this for real by retiring the MONT_HELPER macro 2054 in crypto/rsa/rsa_eay.c. 2055 2056 [Bodo Moeller; problem pointed out by Marius Schilder] 2057 2058 *) Various precautionary measures: 2059 2060 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h). 2061 2062 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c). 2063 (NB: This would require knowledge of the secret session ticket key 2064 to exploit, in which case you'd be SOL either way.) 2065 2066 - Change bn_nist.c so that it will properly handle input BIGNUMs 2067 outside the expected range. 2068 2069 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG 2070 builds. 2071 2072 [Neel Mehta, Bodo Moeller] 2073 2074 *) Allow engines to be "soft loaded" - i.e. optionally don't die if 2075 the load fails. Useful for distros. 2076 [Ben Laurie and the FreeBSD team] 2077 2078 *) Add support for Local Machine Keyset attribute in PKCS#12 files. 2079 [Steve Henson] 2080 2081 *) Fix BN_GF2m_mod_arr() top-bit cleanup code. 2082 [Huang Ying] 2083 2084 *) Expand ENGINE to support engine supplied SSL client certificate functions. 2085 2086 This work was sponsored by Logica. 2087 [Steve Henson] 2088 2089 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows 2090 keystores. Support for SSL/TLS client authentication too. 2091 Not compiled unless enable-capieng specified to Configure. 2092 2093 This work was sponsored by Logica. 2094 [Steve Henson] 2095 2096 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using 2097 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain 2098 attribute creation routines such as certifcate requests and PKCS#12 2099 files. 2100 [Steve Henson] 2101 2102 Changes between 0.9.8g and 0.9.8h [28 May 2008] 2103 2104 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS 2105 handshake which could lead to a cilent crash as found using the 2106 Codenomicon TLS test suite (CVE-2008-1672) 2107 [Steve Henson, Mark Cox] 2108 2109 *) Fix double free in TLS server name extensions which could lead to 2110 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891) 2111 [Joe Orton] 2112 2113 *) Clear error queue in SSL_CTX_use_certificate_chain_file() 2114 2115 Clear the error queue to ensure that error entries left from 2116 older function calls do not interfere with the correct operation. 2117 [Lutz Jaenicke, Erik de Castro Lopo] 2118 2119 *) Remove root CA certificates of commercial CAs: 2120 2121 The OpenSSL project does not recommend any specific CA and does not 2122 have any policy with respect to including or excluding any CA. 2123 Therefore it does not make any sense to ship an arbitrary selection 2124 of root CA certificates with the OpenSSL software. 2125 [Lutz Jaenicke] 2126 2127 *) RSA OAEP patches to fix two separate invalid memory reads. 2128 The first one involves inputs when 'lzero' is greater than 2129 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes 2130 before the beginning of from). The second one involves inputs where 2131 the 'db' section contains nothing but zeroes (there is a one-byte 2132 invalid read after the end of 'db'). 2133 [Ivan Nestlerode <inestlerode@us.ibm.com>] 2134 2135 *) Partial backport from 0.9.9-dev: 2136 2137 Introduce bn_mul_mont (dedicated Montgomery multiplication 2138 procedure) as a candidate for BIGNUM assembler implementation. 2139 While 0.9.9-dev uses assembler for various architectures, only 2140 x86_64 is available by default here in the 0.9.8 branch, and 2141 32-bit x86 is available through a compile-time setting. 2142 2143 To try the 32-bit x86 assembler implementation, use Configure 2144 option "enable-montasm" (which exists only for this backport). 2145 2146 As "enable-montasm" for 32-bit x86 disclaims code stability 2147 anyway, in this constellation we activate additional code 2148 backported from 0.9.9-dev for further performance improvements, 2149 namely BN_from_montgomery_word. (To enable this otherwise, 2150 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".) 2151 2152 [Andy Polyakov (backport partially by Bodo Moeller)] 2153 2154 *) Add TLS session ticket callback. This allows an application to set 2155 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed 2156 values. This is useful for key rollover for example where several key 2157 sets may exist with different names. 2158 [Steve Henson] 2159 2160 *) Reverse ENGINE-internal logic for caching default ENGINE handles. 2161 This was broken until now in 0.9.8 releases, such that the only way 2162 a registered ENGINE could be used (assuming it initialises 2163 successfully on the host) was to explicitly set it as the default 2164 for the relevant algorithms. This is in contradiction with 0.9.7 2165 behaviour and the documentation. With this fix, when an ENGINE is 2166 registered into a given algorithm's table of implementations, the 2167 'uptodate' flag is reset so that auto-discovery will be used next 2168 time a new context for that algorithm attempts to select an 2169 implementation. 2170 [Ian Lister (tweaked by Geoff Thorpe)] 2171 2172 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9 2173 implemention in the following ways: 2174 2175 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be 2176 hard coded. 2177 2178 Lack of BER streaming support means one pass streaming processing is 2179 only supported if data is detached: setting the streaming flag is 2180 ignored for embedded content. 2181 2182 CMS support is disabled by default and must be explicitly enabled 2183 with the enable-cms configuration option. 2184 [Steve Henson] 2185 2186 *) Update the GMP engine glue to do direct copies between BIGNUM and 2187 mpz_t when openssl and GMP use the same limb size. Otherwise the 2188 existing "conversion via a text string export" trick is still used. 2189 [Paul Sheer <paulsheer@gmail.com>] 2190 2191 *) Zlib compression BIO. This is a filter BIO which compressed and 2192 uncompresses any data passed through it. 2193 [Steve Henson] 2194 2195 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement 2196 RFC3394 compatible AES key wrapping. 2197 [Steve Henson] 2198 2199 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0(): 2200 sets string data without copying. X509_ALGOR_set0() and 2201 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier) 2202 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data 2203 from an X509_ATTRIBUTE structure optionally checking it occurs only 2204 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied 2205 data. 2206 [Steve Henson] 2207 2208 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set() 2209 to get the expected BN_FLG_CONSTTIME behavior. 2210 [Bodo Moeller (Google)] 2211 2212 *) Netware support: 2213 2214 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets 2215 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT) 2216 - added some more tests to do_tests.pl 2217 - fixed RunningProcess usage so that it works with newer LIBC NDKs too 2218 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency 2219 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc, 2220 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc 2221 - various changes to netware.pl to enable gcc-cross builds on Win32 2222 platform 2223 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD) 2224 - various changes to fix missing prototype warnings 2225 - fixed x86nasm.pl to create correct asm files for NASM COFF output 2226 - added AES, WHIRLPOOL and CPUID assembler code to build files 2227 - added missing AES assembler make rules to mk1mf.pl 2228 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply 2229 [Guenter Knauf <eflash@gmx.net>] 2230 2231 *) Implement certificate status request TLS extension defined in RFC3546. 2232 A client can set the appropriate parameters and receive the encoded 2233 OCSP response via a callback. A server can query the supplied parameters 2234 and set the encoded OCSP response in the callback. Add simplified examples 2235 to s_client and s_server. 2236 [Steve Henson] 2237 2238 Changes between 0.9.8f and 0.9.8g [19 Oct 2007] 2239 2240 *) Fix various bugs: 2241 + Binary incompatibility of ssl_ctx_st structure 2242 + DTLS interoperation with non-compliant servers 2243 + Don't call get_session_cb() without proposed session 2244 + Fix ia64 assembler code 2245 [Andy Polyakov, Steve Henson] 2246 2247 Changes between 0.9.8e and 0.9.8f [11 Oct 2007] 2248 2249 *) DTLS Handshake overhaul. There were longstanding issues with 2250 OpenSSL DTLS implementation, which were making it impossible for 2251 RFC 4347 compliant client to communicate with OpenSSL server. 2252 Unfortunately just fixing these incompatibilities would "cut off" 2253 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e 2254 server keeps tolerating non RFC compliant syntax. The opposite is 2255 not true, 0.9.8f client can not communicate with earlier server. 2256 This update even addresses CVE-2007-4995. 2257 [Andy Polyakov] 2258 2259 *) Changes to avoid need for function casts in OpenSSL: some compilers 2260 (gcc 4.2 and later) reject their use. 2261 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>, 2262 Steve Henson] 2263 2264 *) Add RFC4507 support to OpenSSL. This includes the corrections in 2265 RFC4507bis. The encrypted ticket format is an encrypted encoded 2266 SSL_SESSION structure, that way new session features are automatically 2267 supported. 2268 2269 If a client application caches session in an SSL_SESSION structure 2270 support is transparent because tickets are now stored in the encoded 2271 SSL_SESSION. 2272 2273 The SSL_CTX structure automatically generates keys for ticket 2274 protection in servers so again support should be possible 2275 with no application modification. 2276 2277 If a client or server wishes to disable RFC4507 support then the option 2278 SSL_OP_NO_TICKET can be set. 2279 2280 Add a TLS extension debugging callback to allow the contents of any client 2281 or server extensions to be examined. 2282 2283 This work was sponsored by Google. 2284 [Steve Henson] 2285 2286 *) Add initial support for TLS extensions, specifically for the server_name 2287 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 2288 have new members for a host name. The SSL data structure has an 2289 additional member SSL_CTX *initial_ctx so that new sessions can be 2290 stored in that context to allow for session resumption, even after the 2291 SSL has been switched to a new SSL_CTX in reaction to a client's 2292 server_name extension. 2293 2294 New functions (subject to change): 2295 2296 SSL_get_servername() 2297 SSL_get_servername_type() 2298 SSL_set_SSL_CTX() 2299 2300 New CTRL codes and macros (subject to change): 2301 2302 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 2303 - SSL_CTX_set_tlsext_servername_callback() 2304 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 2305 - SSL_CTX_set_tlsext_servername_arg() 2306 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 2307 2308 openssl s_client has a new '-servername ...' option. 2309 2310 openssl s_server has new options '-servername_host ...', '-cert2 ...', 2311 '-key2 ...', '-servername_fatal' (subject to change). This allows 2312 testing the HostName extension for a specific single host name ('-cert' 2313 and '-key' remain fallbacks for handshakes without HostName 2314 negotiation). If the unrecogninzed_name alert has to be sent, this by 2315 default is a warning; it becomes fatal with the '-servername_fatal' 2316 option. 2317 2318 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson] 2319 2320 *) Add AES and SSE2 assembly language support to VC++ build. 2321 [Steve Henson] 2322 2323 *) Mitigate attack on final subtraction in Montgomery reduction. 2324 [Andy Polyakov] 2325 2326 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0 2327 (which previously caused an internal error). 2328 [Bodo Moeller] 2329 2330 *) Squeeze another 10% out of IGE mode when in != out. 2331 [Ben Laurie] 2332 2333 *) AES IGE mode speedup. 2334 [Dean Gaudet (Google)] 2335 2336 *) Add the Korean symmetric 128-bit cipher SEED (see 2337 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and 2338 add SEED ciphersuites from RFC 4162: 2339 2340 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA" 2341 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA" 2342 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA" 2343 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA" 2344 2345 To minimize changes between patchlevels in the OpenSSL 0.9.8 2346 series, SEED remains excluded from compilation unless OpenSSL 2347 is configured with 'enable-seed'. 2348 [KISA, Bodo Moeller] 2349 2350 *) Mitigate branch prediction attacks, which can be practical if a 2351 single processor is shared, allowing a spy process to extract 2352 information. For detailed background information, see 2353 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron, 2354 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL 2355 and Necessary Software Countermeasures"). The core of the change 2356 are new versions BN_div_no_branch() and 2357 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(), 2358 respectively, which are slower, but avoid the security-relevant 2359 conditional branches. These are automatically called by BN_div() 2360 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one 2361 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to 2362 remove a conditional branch. 2363 2364 BN_FLG_CONSTTIME is the new name for the previous 2365 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just 2366 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag 2367 in the exponent causes BN_mod_exp_mont() to use the alternative 2368 implementation in BN_mod_exp_mont_consttime().) The old name 2369 remains as a deprecated alias. 2370 2371 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general 2372 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses 2373 constant-time implementations for more than just exponentiation. 2374 Here too the old name is kept as a deprecated alias. 2375 2376 BN_BLINDING_new() will now use BN_dup() for the modulus so that 2377 the BN_BLINDING structure gets an independent copy of the 2378 modulus. This means that the previous "BIGNUM *m" argument to 2379 BN_BLINDING_new() and to BN_BLINDING_create_param() now 2380 essentially becomes "const BIGNUM *m", although we can't actually 2381 change this in the header file before 0.9.9. It allows 2382 RSA_setup_blinding() to use BN_with_flags() on the modulus to 2383 enable BN_FLG_CONSTTIME. 2384 2385 [Matthew D Wood (Intel Corp)] 2386 2387 *) In the SSL/TLS server implementation, be strict about session ID 2388 context matching (which matters if an application uses a single 2389 external cache for different purposes). Previously, 2390 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was 2391 set. This did ensure strict client verification, but meant that, 2392 with applications using a single external cache for quite 2393 different requirements, clients could circumvent ciphersuite 2394 restrictions for a given session ID context by starting a session 2395 in a different context. 2396 [Bodo Moeller] 2397 2398 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 2399 a ciphersuite string such as "DEFAULT:RSA" cannot enable 2400 authentication-only ciphersuites. 2401 [Bodo Moeller] 2402 2403 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was 2404 not complete and could lead to a possible single byte overflow 2405 (CVE-2007-5135) [Ben Laurie] 2406 2407 Changes between 0.9.8d and 0.9.8e [23 Feb 2007] 2408 2409 *) Since AES128 and AES256 (and similarly Camellia128 and 2410 Camellia256) share a single mask bit in the logic of 2411 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 2412 kludge to work properly if AES128 is available and AES256 isn't 2413 (or if Camellia128 is available and Camellia256 isn't). 2414 [Victor Duchovni] 2415 2416 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c 2417 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters): 2418 When a point or a seed is encoded in a BIT STRING, we need to 2419 prevent the removal of trailing zero bits to get the proper DER 2420 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case 2421 of a NamedBitList, for which trailing 0 bits need to be removed.) 2422 [Bodo Moeller] 2423 2424 *) Have SSL/TLS server implementation tolerate "mismatched" record 2425 protocol version while receiving ClientHello even if the 2426 ClientHello is fragmented. (The server can't insist on the 2427 particular protocol version it has chosen before the ServerHello 2428 message has informed the client about his choice.) 2429 [Bodo Moeller] 2430 2431 *) Add RFC 3779 support. 2432 [Rob Austein for ARIN, Ben Laurie] 2433 2434 *) Load error codes if they are not already present instead of using a 2435 static variable. This allows them to be cleanly unloaded and reloaded. 2436 Improve header file function name parsing. 2437 [Steve Henson] 2438 2439 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO 2440 or CAPABILITY handshake as required by RFCs. 2441 [Goetz Babin-Ebell] 2442 2443 Changes between 0.9.8c and 0.9.8d [28 Sep 2006] 2444 2445 *) Introduce limits to prevent malicious keys being able to 2446 cause a denial of service. (CVE-2006-2940) 2447 [Steve Henson, Bodo Moeller] 2448 2449 *) Fix ASN.1 parsing of certain invalid structures that can result 2450 in a denial of service. (CVE-2006-2937) [Steve Henson] 2451 2452 *) Fix buffer overflow in SSL_get_shared_ciphers() function. 2453 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team] 2454 2455 *) Fix SSL client code which could crash if connecting to a 2456 malicious SSLv2 server. (CVE-2006-4343) 2457 [Tavis Ormandy and Will Drewry, Google Security Team] 2458 2459 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites 2460 match only those. Before that, "AES256-SHA" would be interpreted 2461 as a pattern and match "AES128-SHA" too (since AES128-SHA got 2462 the same strength classification in 0.9.7h) as we currently only 2463 have a single AES bit in the ciphersuite description bitmap. 2464 That change, however, also applied to ciphersuite strings such as 2465 "RC4-MD5" that intentionally matched multiple ciphersuites -- 2466 namely, SSL 2.0 ciphersuites in addition to the more common ones 2467 from SSL 3.0/TLS 1.0. 2468 2469 So we change the selection algorithm again: Naming an explicit 2470 ciphersuite selects this one ciphersuite, and any other similar 2471 ciphersuite (same bitmap) from *other* protocol versions. 2472 Thus, "RC4-MD5" again will properly select both the SSL 2.0 2473 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite. 2474 2475 Since SSL 2.0 does not have any ciphersuites for which the 2476 128/256 bit distinction would be relevant, this works for now. 2477 The proper fix will be to use different bits for AES128 and 2478 AES256, which would have avoided the problems from the beginning; 2479 however, bits are scarce, so we can only do this in a new release 2480 (not just a patchlevel) when we can change the SSL_CIPHER 2481 definition to split the single 'unsigned long mask' bitmap into 2482 multiple values to extend the available space. 2483 2484 [Bodo Moeller] 2485 2486 Changes between 0.9.8b and 0.9.8c [05 Sep 2006] 2487 2488 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 2489 (CVE-2006-4339) [Ben Laurie and Google Security Team] 2490 2491 *) Add AES IGE and biIGE modes. 2492 [Ben Laurie] 2493 2494 *) Change the Unix randomness entropy gathering to use poll() when 2495 possible instead of select(), since the latter has some 2496 undesirable limitations. 2497 [Darryl Miles via Richard Levitte and Bodo Moeller] 2498 2499 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special 2500 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites 2501 cannot be implicitly activated as part of, e.g., the "AES" alias. 2502 However, please upgrade to OpenSSL 0.9.9[-dev] for 2503 non-experimental use of the ECC ciphersuites to get TLS extension 2504 support, which is required for curve and point format negotiation 2505 to avoid potential handshake problems. 2506 [Bodo Moeller] 2507 2508 *) Disable rogue ciphersuites: 2509 2510 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 2511 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 2512 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 2513 2514 The latter two were purportedly from 2515 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 2516 appear there. 2517 2518 Also deactivate the remaining ciphersuites from 2519 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 2520 unofficial, and the ID has long expired. 2521 [Bodo Moeller] 2522 2523 *) Fix RSA blinding Heisenbug (problems sometimes occured on 2524 dual-core machines) and other potential thread-safety issues. 2525 [Bodo Moeller] 2526 2527 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key 2528 versions), which is now available for royalty-free use 2529 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html). 2530 Also, add Camellia TLS ciphersuites from RFC 4132. 2531 2532 To minimize changes between patchlevels in the OpenSSL 0.9.8 2533 series, Camellia remains excluded from compilation unless OpenSSL 2534 is configured with 'enable-camellia'. 2535 [NTT] 2536 2537 *) Disable the padding bug check when compression is in use. The padding 2538 bug check assumes the first packet is of even length, this is not 2539 necessarily true if compresssion is enabled and can result in false 2540 positives causing handshake failure. The actual bug test is ancient 2541 code so it is hoped that implementations will either have fixed it by 2542 now or any which still have the bug do not support compression. 2543 [Steve Henson] 2544 2545 Changes between 0.9.8a and 0.9.8b [04 May 2006] 2546 2547 *) When applying a cipher rule check to see if string match is an explicit 2548 cipher suite and only match that one cipher suite if it is. 2549 [Steve Henson] 2550 2551 *) Link in manifests for VC++ if needed. 2552 [Austin Ziegler <halostatue@gmail.com>] 2553 2554 *) Update support for ECC-based TLS ciphersuites according to 2555 draft-ietf-tls-ecc-12.txt with proposed changes (but without 2556 TLS extensions, which are supported starting with the 0.9.9 2557 branch, not in the OpenSSL 0.9.8 branch). 2558 [Douglas Stebila] 2559 2560 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support 2561 opaque EVP_CIPHER_CTX handling. 2562 [Steve Henson] 2563 2564 *) Fixes and enhancements to zlib compression code. We now only use 2565 "zlib1.dll" and use the default __cdecl calling convention on Win32 2566 to conform with the standards mentioned here: 2567 http://www.zlib.net/DLL_FAQ.txt 2568 Static zlib linking now works on Windows and the new --with-zlib-include 2569 --with-zlib-lib options to Configure can be used to supply the location 2570 of the headers and library. Gracefully handle case where zlib library 2571 can't be loaded. 2572 [Steve Henson] 2573 2574 *) Several fixes and enhancements to the OID generation code. The old code 2575 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't 2576 handle numbers larger than ULONG_MAX, truncated printing and had a 2577 non standard OBJ_obj2txt() behaviour. 2578 [Steve Henson] 2579 2580 *) Add support for building of engines under engine/ as shared libraries 2581 under VC++ build system. 2582 [Steve Henson] 2583 2584 *) Corrected the numerous bugs in the Win32 path splitter in DSO. 2585 Hopefully, we will not see any false combination of paths any more. 2586 [Richard Levitte] 2587 2588 Changes between 0.9.8 and 0.9.8a [11 Oct 2005] 2589 2590 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 2591 (part of SSL_OP_ALL). This option used to disable the 2592 countermeasure against man-in-the-middle protocol-version 2593 rollback in the SSL 2.0 server implementation, which is a bad 2594 idea. (CVE-2005-2969) 2595 2596 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 2597 for Information Security, National Institute of Advanced Industrial 2598 Science and Technology [AIST], Japan)] 2599 2600 *) Add two function to clear and return the verify parameter flags. 2601 [Steve Henson] 2602 2603 *) Keep cipherlists sorted in the source instead of sorting them at 2604 runtime, thus removing the need for a lock. 2605 [Nils Larsch] 2606 2607 *) Avoid some small subgroup attacks in Diffie-Hellman. 2608 [Nick Mathewson and Ben Laurie] 2609 2610 *) Add functions for well-known primes. 2611 [Nick Mathewson] 2612 2613 *) Extended Windows CE support. 2614 [Satoshi Nakamura and Andy Polyakov] 2615 2616 *) Initialize SSL_METHOD structures at compile time instead of during 2617 runtime, thus removing the need for a lock. 2618 [Steve Henson] 2619 2620 *) Make PKCS7_decrypt() work even if no certificate is supplied by 2621 attempting to decrypt each encrypted key in turn. Add support to 2622 smime utility. 2623 [Steve Henson] 2624 2625 Changes between 0.9.7h and 0.9.8 [05 Jul 2005] 2626 2627 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after 2628 OpenSSL 0.9.8.] 2629 2630 *) Add libcrypto.pc and libssl.pc for those who feel they need them. 2631 [Richard Levitte] 2632 2633 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private 2634 key into the same file any more. 2635 [Richard Levitte] 2636 2637 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors. 2638 [Andy Polyakov] 2639 2640 *) Add -utf8 command line and config file option to 'ca'. 2641 [Stefan <stf@udoma.org] 2642 2643 *) Removed the macro des_crypt(), as it seems to conflict with some 2644 libraries. Use DES_crypt(). 2645 [Richard Levitte] 2646 2647 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This 2648 involves renaming the source and generated shared-libs for 2649 both. The engines will accept the corrected or legacy ids 2650 ('ncipher' and '4758_cca' respectively) when binding. NB, 2651 this only applies when building 'shared'. 2652 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe] 2653 2654 *) Add attribute functions to EVP_PKEY structure. Modify 2655 PKCS12_create() to recognize a CSP name attribute and 2656 use it. Make -CSP option work again in pkcs12 utility. 2657 [Steve Henson] 2658 2659 *) Add new functionality to the bn blinding code: 2660 - automatic re-creation of the BN_BLINDING parameters after 2661 a fixed number of uses (currently 32) 2662 - add new function for parameter creation 2663 - introduce flags to control the update behaviour of the 2664 BN_BLINDING parameters 2665 - hide BN_BLINDING structure 2666 Add a second BN_BLINDING slot to the RSA structure to improve 2667 performance when a single RSA object is shared among several 2668 threads. 2669 [Nils Larsch] 2670 2671 *) Add support for DTLS. 2672 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie] 2673 2674 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1) 2675 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file() 2676 [Walter Goulet] 2677 2678 *) Remove buggy and incompletet DH cert support from 2679 ssl/ssl_rsa.c and ssl/s3_both.c 2680 [Nils Larsch] 2681 2682 *) Use SHA-1 instead of MD5 as the default digest algorithm for 2683 the apps/openssl applications. 2684 [Nils Larsch] 2685 2686 *) Compile clean with "-Wall -Wmissing-prototypes 2687 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently 2688 DEBUG_SAFESTACK must also be set. 2689 [Ben Laurie] 2690 2691 *) Change ./Configure so that certain algorithms can be disabled by default. 2692 The new counterpiece to "no-xxx" is "enable-xxx". 2693 2694 The patented RC5 and MDC2 algorithms will now be disabled unless 2695 "enable-rc5" and "enable-mdc2", respectively, are specified. 2696 2697 (IDEA remains enabled despite being patented. This is because IDEA 2698 is frequently required for interoperability, and there is no license 2699 fee for non-commercial use. As before, "no-idea" can be used to 2700 avoid this algorithm.) 2701 2702 [Bodo Moeller] 2703 2704 *) Add processing of proxy certificates (see RFC 3820). This work was 2705 sponsored by KTH (The Royal Institute of Technology in Stockholm) and 2706 EGEE (Enabling Grids for E-science in Europe). 2707 [Richard Levitte] 2708 2709 *) RC4 performance overhaul on modern architectures/implementations, such 2710 as Intel P4, IA-64 and AMD64. 2711 [Andy Polyakov] 2712 2713 *) New utility extract-section.pl. This can be used specify an alternative 2714 section number in a pod file instead of having to treat each file as 2715 a separate case in Makefile. This can be done by adding two lines to the 2716 pod file: 2717 2718 =for comment openssl_section:XXX 2719 2720 The blank line is mandatory. 2721 2722 [Steve Henson] 2723 2724 *) New arguments -certform, -keyform and -pass for s_client and s_server 2725 to allow alternative format key and certificate files and passphrase 2726 sources. 2727 [Steve Henson] 2728 2729 *) New structure X509_VERIFY_PARAM which combines current verify parameters, 2730 update associated structures and add various utility functions. 2731 2732 Add new policy related verify parameters, include policy checking in 2733 standard verify code. Enhance 'smime' application with extra parameters 2734 to support policy checking and print out. 2735 [Steve Henson] 2736 2737 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3 2738 Nehemiah processors. These extensions support AES encryption in hardware 2739 as well as RNG (though RNG support is currently disabled). 2740 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov] 2741 2742 *) Deprecate BN_[get|set]_params() functions (they were ignored internally). 2743 [Geoff Thorpe] 2744 2745 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented. 2746 [Andy Polyakov and a number of other people] 2747 2748 *) Improved PowerPC platform support. Most notably BIGNUM assembler 2749 implementation contributed by IBM. 2750 [Suresh Chari, Peter Waltenberg, Andy Polyakov] 2751 2752 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public 2753 exponent rather than 'unsigned long'. There is a corresponding change to 2754 the new 'rsa_keygen' element of the RSA_METHOD structure. 2755 [Jelte Jansen, Geoff Thorpe] 2756 2757 *) Functionality for creating the initial serial number file is now 2758 moved from CA.pl to the 'ca' utility with a new option -create_serial. 2759 2760 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial 2761 number file to 1, which is bound to cause problems. To avoid 2762 the problems while respecting compatibility between different 0.9.7 2763 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in 2764 CA.pl for serial number initialization. With the new release 0.9.8, 2765 we can fix the problem directly in the 'ca' utility.) 2766 [Steve Henson] 2767 2768 *) Reduced header interdepencies by declaring more opaque objects in 2769 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will 2770 give fewer recursive includes, which could break lazy source code - so 2771 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always, 2772 developers should define this symbol when building and using openssl to 2773 ensure they track the recommended behaviour, interfaces, [etc], but 2774 backwards-compatible behaviour prevails when this isn't defined. 2775 [Geoff Thorpe] 2776 2777 *) New function X509_POLICY_NODE_print() which prints out policy nodes. 2778 [Steve Henson] 2779 2780 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality. 2781 This will generate a random key of the appropriate length based on the 2782 cipher context. The EVP_CIPHER can provide its own random key generation 2783 routine to support keys of a specific form. This is used in the des and 2784 3des routines to generate a key of the correct parity. Update S/MIME 2785 code to use new functions and hence generate correct parity DES keys. 2786 Add EVP_CHECK_DES_KEY #define to return an error if the key is not 2787 valid (weak or incorrect parity). 2788 [Steve Henson] 2789 2790 *) Add a local set of CRLs that can be used by X509_verify_cert() as well 2791 as looking them up. This is useful when the verified structure may contain 2792 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs 2793 present unless the new PKCS7_NO_CRL flag is asserted. 2794 [Steve Henson] 2795 2796 *) Extend ASN1 oid configuration module. It now additionally accepts the 2797 syntax: 2798 2799 shortName = some long name, 1.2.3.4 2800 [Steve Henson] 2801 2802 *) Reimplemented the BN_CTX implementation. There is now no more static 2803 limitation on the number of variables it can handle nor the depth of the 2804 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack 2805 information can now expand as required, and rather than having a single 2806 static array of bignums, BN_CTX now uses a linked-list of such arrays 2807 allowing it to expand on demand whilst maintaining the usefulness of 2808 BN_CTX's "bundling". 2809 [Geoff Thorpe] 2810 2811 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD 2812 to allow all RSA operations to function using a single BN_CTX. 2813 [Geoff Thorpe] 2814 2815 *) Preliminary support for certificate policy evaluation and checking. This 2816 is initially intended to pass the tests outlined in "Conformance Testing 2817 of Relying Party Client Certificate Path Processing Logic" v1.07. 2818 [Steve Henson] 2819 2820 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and 2821 remained unused and not that useful. A variety of other little bignum 2822 tweaks and fixes have also been made continuing on from the audit (see 2823 below). 2824 [Geoff Thorpe] 2825 2826 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with 2827 associated ASN1, EVP and SSL functions and old ASN1 macros. 2828 [Richard Levitte] 2829 2830 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results, 2831 and this should never fail. So the return value from the use of 2832 BN_set_word() (which can fail due to needless expansion) is now deprecated; 2833 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro. 2834 [Geoff Thorpe] 2835 2836 *) BN_CTX_get() should return zero-valued bignums, providing the same 2837 initialised value as BN_new(). 2838 [Geoff Thorpe, suggested by Ulf M�ller] 2839 2840 *) Support for inhibitAnyPolicy certificate extension. 2841 [Steve Henson] 2842 2843 *) An audit of the BIGNUM code is underway, for which debugging code is 2844 enabled when BN_DEBUG is defined. This makes stricter enforcements on what 2845 is considered valid when processing BIGNUMs, and causes execution to 2846 assert() when a problem is discovered. If BN_DEBUG_RAND is defined, 2847 further steps are taken to deliberately pollute unused data in BIGNUM 2848 structures to try and expose faulty code further on. For now, openssl will 2849 (in its default mode of operation) continue to tolerate the inconsistent 2850 forms that it has tolerated in the past, but authors and packagers should 2851 consider trying openssl and their own applications when compiled with 2852 these debugging symbols defined. It will help highlight potential bugs in 2853 their own code, and will improve the test coverage for OpenSSL itself. At 2854 some point, these tighter rules will become openssl's default to improve 2855 maintainability, though the assert()s and other overheads will remain only 2856 in debugging configurations. See bn.h for more details. 2857 [Geoff Thorpe, Nils Larsch, Ulf M�ller] 2858 2859 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure 2860 that can only be obtained through BN_CTX_new() (which implicitly 2861 initialises it). The presence of this function only made it possible 2862 to overwrite an existing structure (and cause memory leaks). 2863 [Geoff Thorpe] 2864 2865 *) Because of the callback-based approach for implementing LHASH as a 2866 template type, lh_insert() adds opaque objects to hash-tables and 2867 lh_doall() or lh_doall_arg() are typically used with a destructor callback 2868 to clean up those corresponding objects before destroying the hash table 2869 (and losing the object pointers). So some over-zealous constifications in 2870 LHASH have been relaxed so that lh_insert() does not take (nor store) the 2871 objects as "const" and the lh_doall[_arg] callback wrappers are not 2872 prototyped to have "const" restrictions on the object pointers they are 2873 given (and so aren't required to cast them away any more). 2874 [Geoff Thorpe] 2875 2876 *) The tmdiff.h API was so ugly and minimal that our own timing utility 2877 (speed) prefers to use its own implementation. The two implementations 2878 haven't been consolidated as yet (volunteers?) but the tmdiff API has had 2879 its object type properly exposed (MS_TM) instead of casting to/from "char 2880 *". This may still change yet if someone realises MS_TM and "ms_time_***" 2881 aren't necessarily the greatest nomenclatures - but this is what was used 2882 internally to the implementation so I've used that for now. 2883 [Geoff Thorpe] 2884 2885 *) Ensure that deprecated functions do not get compiled when 2886 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of 2887 the self-tests were still using deprecated key-generation functions so 2888 these have been updated also. 2889 [Geoff Thorpe] 2890 2891 *) Reorganise PKCS#7 code to separate the digest location functionality 2892 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest(). 2893 New function PKCS7_set_digest() to set the digest type for PKCS#7 2894 digestedData type. Add additional code to correctly generate the 2895 digestedData type and add support for this type in PKCS7 initialization 2896 functions. 2897 [Steve Henson] 2898 2899 *) New function PKCS7_set0_type_other() this initializes a PKCS7 2900 structure of type "other". 2901 [Steve Henson] 2902 2903 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making 2904 sure the loop does correctly stop and breaking ("division by zero") 2905 modulus operations are not performed. The (pre-generated) prime 2906 table crypto/bn/bn_prime.h was already correct, but it could not be 2907 re-generated on some platforms because of the "division by zero" 2908 situation in the script. 2909 [Ralf S. Engelschall] 2910 2911 *) Update support for ECC-based TLS ciphersuites according to 2912 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with 2913 SHA-1 now is only used for "small" curves (where the 2914 representation of a field element takes up to 24 bytes); for 2915 larger curves, the field element resulting from ECDH is directly 2916 used as premaster secret. 2917 [Douglas Stebila (Sun Microsystems Laboratories)] 2918 2919 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2 2920 curve secp160r1 to the tests. 2921 [Douglas Stebila (Sun Microsystems Laboratories)] 2922 2923 *) Add the possibility to load symbols globally with DSO. 2924 [G�tz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte] 2925 2926 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better 2927 control of the error stack. 2928 [Richard Levitte] 2929 2930 *) Add support for STORE in ENGINE. 2931 [Richard Levitte] 2932 2933 *) Add the STORE type. The intention is to provide a common interface 2934 to certificate and key stores, be they simple file-based stores, or 2935 HSM-type store, or LDAP stores, or... 2936 NOTE: The code is currently UNTESTED and isn't really used anywhere. 2937 [Richard Levitte] 2938 2939 *) Add a generic structure called OPENSSL_ITEM. This can be used to 2940 pass a list of arguments to any function as well as provide a way 2941 for a function to pass data back to the caller. 2942 [Richard Levitte] 2943 2944 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup() 2945 works like BUF_strdup() but can be used to duplicate a portion of 2946 a string. The copy gets NUL-terminated. BUF_memdup() duplicates 2947 a memory area. 2948 [Richard Levitte] 2949 2950 *) Add the function sk_find_ex() which works like sk_find(), but will 2951 return an index to an element even if an exact match couldn't be 2952 found. The index is guaranteed to point at the element where the 2953 searched-for key would be inserted to preserve sorting order. 2954 [Richard Levitte] 2955 2956 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but 2957 takes an extra flags argument for optional functionality. Currently, 2958 the following flags are defined: 2959 2960 OBJ_BSEARCH_VALUE_ON_NOMATCH 2961 This one gets OBJ_bsearch_ex() to return a pointer to the first 2962 element where the comparing function returns a negative or zero 2963 number. 2964 2965 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH 2966 This one gets OBJ_bsearch_ex() to return a pointer to the first 2967 element where the comparing function returns zero. This is useful 2968 if there are more than one element where the comparing function 2969 returns zero. 2970 [Richard Levitte] 2971 2972 *) Make it possible to create self-signed certificates with 'openssl ca' 2973 in such a way that the self-signed certificate becomes part of the 2974 CA database and uses the same mechanisms for serial number generation 2975 as all other certificate signing. The new flag '-selfsign' enables 2976 this functionality. Adapt CA.sh and CA.pl.in. 2977 [Richard Levitte] 2978 2979 *) Add functionality to check the public key of a certificate request 2980 against a given private. This is useful to check that a certificate 2981 request can be signed by that key (self-signing). 2982 [Richard Levitte] 2983 2984 *) Make it possible to have multiple active certificates with the same 2985 subject in the CA index file. This is done only if the keyword 2986 'unique_subject' is set to 'no' in the main CA section (default 2987 if 'CA_default') of the configuration file. The value is saved 2988 with the database itself in a separate index attribute file, 2989 named like the index file with '.attr' appended to the name. 2990 [Richard Levitte] 2991 2992 *) Generate muti valued AVAs using '+' notation in config files for 2993 req and dirName. 2994 [Steve Henson] 2995 2996 *) Support for nameConstraints certificate extension. 2997 [Steve Henson] 2998 2999 *) Support for policyConstraints certificate extension. 3000 [Steve Henson] 3001 3002 *) Support for policyMappings certificate extension. 3003 [Steve Henson] 3004 3005 *) Make sure the default DSA_METHOD implementation only uses its 3006 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL, 3007 and change its own handlers to be NULL so as to remove unnecessary 3008 indirection. This lets alternative implementations fallback to the 3009 default implementation more easily. 3010 [Geoff Thorpe] 3011 3012 *) Support for directoryName in GeneralName related extensions 3013 in config files. 3014 [Steve Henson] 3015 3016 *) Make it possible to link applications using Makefile.shared. 3017 Make that possible even when linking against static libraries! 3018 [Richard Levitte] 3019 3020 *) Support for single pass processing for S/MIME signing. This now 3021 means that S/MIME signing can be done from a pipe, in addition 3022 cleartext signing (multipart/signed type) is effectively streaming 3023 and the signed data does not need to be all held in memory. 3024 3025 This is done with a new flag PKCS7_STREAM. When this flag is set 3026 PKCS7_sign() only initializes the PKCS7 structure and the actual signing 3027 is done after the data is output (and digests calculated) in 3028 SMIME_write_PKCS7(). 3029 [Steve Henson] 3030 3031 *) Add full support for -rpath/-R, both in shared libraries and 3032 applications, at least on the platforms where it's known how 3033 to do it. 3034 [Richard Levitte] 3035 3036 *) In crypto/ec/ec_mult.c, implement fast point multiplication with 3037 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult() 3038 will now compute a table of multiples of the generator that 3039 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul() 3040 faster (notably in the case of a single point multiplication, 3041 scalar * generator). 3042 [Nils Larsch, Bodo Moeller] 3043 3044 *) IPv6 support for certificate extensions. The various extensions 3045 which use the IP:a.b.c.d can now take IPv6 addresses using the 3046 formats of RFC1884 2.2 . IPv6 addresses are now also displayed 3047 correctly. 3048 [Steve Henson] 3049 3050 *) Added an ENGINE that implements RSA by performing private key 3051 exponentiations with the GMP library. The conversions to and from 3052 GMP's mpz_t format aren't optimised nor are any montgomery forms 3053 cached, and on x86 it appears OpenSSL's own performance has caught up. 3054 However there are likely to be other architectures where GMP could 3055 provide a boost. This ENGINE is not built in by default, but it can be 3056 specified at Configure time and should be accompanied by the necessary 3057 linker additions, eg; 3058 ./config -DOPENSSL_USE_GMP -lgmp 3059 [Geoff Thorpe] 3060 3061 *) "openssl engine" will not display ENGINE/DSO load failure errors when 3062 testing availability of engines with "-t" - the old behaviour is 3063 produced by increasing the feature's verbosity with "-tt". 3064 [Geoff Thorpe] 3065 3066 *) ECDSA routines: under certain error conditions uninitialized BN objects 3067 could be freed. Solution: make sure initialization is performed early 3068 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de> 3069 via PR#459) 3070 [Lutz Jaenicke] 3071 3072 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD 3073 and DH_METHOD (eg. by ENGINE implementations) to override the normal 3074 software implementations. For DSA and DH, parameter generation can 3075 also be overriden by providing the appropriate method callbacks. 3076 [Geoff Thorpe] 3077 3078 *) Change the "progress" mechanism used in key-generation and 3079 primality testing to functions that take a new BN_GENCB pointer in 3080 place of callback/argument pairs. The new API functions have "_ex" 3081 postfixes and the older functions are reimplemented as wrappers for 3082 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide 3083 declarations of the old functions to help (graceful) attempts to 3084 migrate to the new functions. Also, the new key-generation API 3085 functions operate on a caller-supplied key-structure and return 3086 success/failure rather than returning a key or NULL - this is to 3087 help make "keygen" another member function of RSA_METHOD etc. 3088 3089 Example for using the new callback interface: 3090 3091 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...; 3092 void *my_arg = ...; 3093 BN_GENCB my_cb; 3094 3095 BN_GENCB_set(&my_cb, my_callback, my_arg); 3096 3097 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb); 3098 /* For the meaning of a, b in calls to my_callback(), see the 3099 * documentation of the function that calls the callback. 3100 * cb will point to my_cb; my_arg can be retrieved as cb->arg. 3101 * my_callback should return 1 if it wants BN_is_prime_ex() 3102 * to continue, or 0 to stop. 3103 */ 3104 3105 [Geoff Thorpe] 3106 3107 *) Change the ZLIB compression method to be stateful, and make it 3108 available to TLS with the number defined in 3109 draft-ietf-tls-compression-04.txt. 3110 [Richard Levitte] 3111 3112 *) Add the ASN.1 structures and functions for CertificatePair, which 3113 is defined as follows (according to X.509_4thEditionDraftV6.pdf): 3114 3115 CertificatePair ::= SEQUENCE { 3116 forward [0] Certificate OPTIONAL, 3117 reverse [1] Certificate OPTIONAL, 3118 -- at least one of the pair shall be present -- } 3119 3120 Also implement the PEM functions to read and write certificate 3121 pairs, and defined the PEM tag as "CERTIFICATE PAIR". 3122 3123 This needed to be defined, mostly for the sake of the LDAP 3124 attribute crossCertificatePair, but may prove useful elsewhere as 3125 well. 3126 [Richard Levitte] 3127 3128 *) Make it possible to inhibit symlinking of shared libraries in 3129 Makefile.shared, for Cygwin's sake. 3130 [Richard Levitte] 3131 3132 *) Extend the BIGNUM API by creating a function 3133 void BN_set_negative(BIGNUM *a, int neg); 3134 and a macro that behave like 3135 int BN_is_negative(const BIGNUM *a); 3136 3137 to avoid the need to access 'a->neg' directly in applications. 3138 [Nils Larsch] 3139 3140 *) Implement fast modular reduction for pseudo-Mersenne primes 3141 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c). 3142 EC_GROUP_new_curve_GFp() will now automatically use this 3143 if applicable. 3144 [Nils Larsch <nla@trustcenter.de>] 3145 3146 *) Add new lock type (CRYPTO_LOCK_BN). 3147 [Bodo Moeller] 3148 3149 *) Change the ENGINE framework to automatically load engines 3150 dynamically from specific directories unless they could be 3151 found to already be built in or loaded. Move all the 3152 current engines except for the cryptodev one to a new 3153 directory engines/. 3154 The engines in engines/ are built as shared libraries if 3155 the "shared" options was given to ./Configure or ./config. 3156 Otherwise, they are inserted in libcrypto.a. 3157 /usr/local/ssl/engines is the default directory for dynamic 3158 engines, but that can be overriden at configure time through 3159 the usual use of --prefix and/or --openssldir, and at run 3160 time with the environment variable OPENSSL_ENGINES. 3161 [Geoff Thorpe and Richard Levitte] 3162 3163 *) Add Makefile.shared, a helper makefile to build shared 3164 libraries. Addapt Makefile.org. 3165 [Richard Levitte] 3166 3167 *) Add version info to Win32 DLLs. 3168 [Peter 'Luna' Runestig" <peter@runestig.com>] 3169 3170 *) Add new 'medium level' PKCS#12 API. Certificates and keys 3171 can be added using this API to created arbitrary PKCS#12 3172 files while avoiding the low level API. 3173 3174 New options to PKCS12_create(), key or cert can be NULL and 3175 will then be omitted from the output file. The encryption 3176 algorithm NIDs can be set to -1 for no encryption, the mac 3177 iteration count can be set to 0 to omit the mac. 3178 3179 Enhance pkcs12 utility by making the -nokeys and -nocerts 3180 options work when creating a PKCS#12 file. New option -nomac 3181 to omit the mac, NONE can be set for an encryption algorithm. 3182 New code is modified to use the enhanced PKCS12_create() 3183 instead of the low level API. 3184 [Steve Henson] 3185 3186 *) Extend ASN1 encoder to support indefinite length constructed 3187 encoding. This can output sequences tags and octet strings in 3188 this form. Modify pk7_asn1.c to support indefinite length 3189 encoding. This is experimental and needs additional code to 3190 be useful, such as an ASN1 bio and some enhanced streaming 3191 PKCS#7 code. 3192 3193 Extend template encode functionality so that tagging is passed 3194 down to the template encoder. 3195 [Steve Henson] 3196 3197 *) Let 'openssl req' fail if an argument to '-newkey' is not 3198 recognized instead of using RSA as a default. 3199 [Bodo Moeller] 3200 3201 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt. 3202 As these are not official, they are not included in "ALL"; 3203 the "ECCdraft" ciphersuite group alias can be used to select them. 3204 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)] 3205 3206 *) Add ECDH engine support. 3207 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)] 3208 3209 *) Add ECDH in new directory crypto/ecdh/. 3210 [Douglas Stebila (Sun Microsystems Laboratories)] 3211 3212 *) Let BN_rand_range() abort with an error after 100 iterations 3213 without success (which indicates a broken PRNG). 3214 [Bodo Moeller] 3215 3216 *) Change BN_mod_sqrt() so that it verifies that the input value 3217 is really the square of the return value. (Previously, 3218 BN_mod_sqrt would show GIGO behaviour.) 3219 [Bodo Moeller] 3220 3221 *) Add named elliptic curves over binary fields from X9.62, SECG, 3222 and WAP/WTLS; add OIDs that were still missing. 3223 3224 [Sheueling Chang Shantz and Douglas Stebila 3225 (Sun Microsystems Laboratories)] 3226 3227 *) Extend the EC library for elliptic curves over binary fields 3228 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/). 3229 New EC_METHOD: 3230 3231 EC_GF2m_simple_method 3232 3233 New API functions: 3234 3235 EC_GROUP_new_curve_GF2m 3236 EC_GROUP_set_curve_GF2m 3237 EC_GROUP_get_curve_GF2m 3238 EC_POINT_set_affine_coordinates_GF2m 3239 EC_POINT_get_affine_coordinates_GF2m 3240 EC_POINT_set_compressed_coordinates_GF2m 3241 3242 Point compression for binary fields is disabled by default for 3243 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to 3244 enable it). 3245 3246 As binary polynomials are represented as BIGNUMs, various members 3247 of the EC_GROUP and EC_POINT data structures can be shared 3248 between the implementations for prime fields and binary fields; 3249 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m) 3250 are essentially identical to their ..._GFp counterparts. 3251 (For simplicity, the '..._GFp' prefix has been dropped from 3252 various internal method names.) 3253 3254 An internal 'field_div' method (similar to 'field_mul' and 3255 'field_sqr') has been added; this is used only for binary fields. 3256 3257 [Sheueling Chang Shantz and Douglas Stebila 3258 (Sun Microsystems Laboratories)] 3259 3260 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult() 3261 through methods ('mul', 'precompute_mult'). 3262 3263 The generic implementations (now internally called 'ec_wNAF_mul' 3264 and 'ec_wNAF_precomputed_mult') remain the default if these 3265 methods are undefined. 3266 3267 [Sheueling Chang Shantz and Douglas Stebila 3268 (Sun Microsystems Laboratories)] 3269 3270 *) New function EC_GROUP_get_degree, which is defined through 3271 EC_METHOD. For curves over prime fields, this returns the bit 3272 length of the modulus. 3273 3274 [Sheueling Chang Shantz and Douglas Stebila 3275 (Sun Microsystems Laboratories)] 3276 3277 *) New functions EC_GROUP_dup, EC_POINT_dup. 3278 (These simply call ..._new and ..._copy). 3279 3280 [Sheueling Chang Shantz and Douglas Stebila 3281 (Sun Microsystems Laboratories)] 3282 3283 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c. 3284 Polynomials are represented as BIGNUMs (where the sign bit is not 3285 used) in the following functions [macros]: 3286 3287 BN_GF2m_add 3288 BN_GF2m_sub [= BN_GF2m_add] 3289 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr] 3290 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr] 3291 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr] 3292 BN_GF2m_mod_inv 3293 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr] 3294 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr] 3295 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr] 3296 BN_GF2m_cmp [= BN_ucmp] 3297 3298 (Note that only the 'mod' functions are actually for fields GF(2^m). 3299 BN_GF2m_add() is misnomer, but this is for the sake of consistency.) 3300 3301 For some functions, an the irreducible polynomial defining a 3302 field can be given as an 'unsigned int[]' with strictly 3303 decreasing elements giving the indices of those bits that are set; 3304 i.e., p[] represents the polynomial 3305 f(t) = t^p[0] + t^p[1] + ... + t^p[k] 3306 where 3307 p[0] > p[1] > ... > p[k] = 0. 3308 This applies to the following functions: 3309 3310 BN_GF2m_mod_arr 3311 BN_GF2m_mod_mul_arr 3312 BN_GF2m_mod_sqr_arr 3313 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv] 3314 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div] 3315 BN_GF2m_mod_exp_arr 3316 BN_GF2m_mod_sqrt_arr 3317 BN_GF2m_mod_solve_quad_arr 3318 BN_GF2m_poly2arr 3319 BN_GF2m_arr2poly 3320 3321 Conversion can be performed by the following functions: 3322 3323 BN_GF2m_poly2arr 3324 BN_GF2m_arr2poly 3325 3326 bntest.c has additional tests for binary polynomial arithmetic. 3327 3328 Two implementations for BN_GF2m_mod_div() are available. 3329 The default algorithm simply uses BN_GF2m_mod_inv() and 3330 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only 3331 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the 3332 copyright notice in crypto/bn/bn_gf2m.c before enabling it). 3333 3334 [Sheueling Chang Shantz and Douglas Stebila 3335 (Sun Microsystems Laboratories)] 3336 3337 *) Add new error code 'ERR_R_DISABLED' that can be used when some 3338 functionality is disabled at compile-time. 3339 [Douglas Stebila <douglas.stebila@sun.com>] 3340 3341 *) Change default behaviour of 'openssl asn1parse' so that more 3342 information is visible when viewing, e.g., a certificate: 3343 3344 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump' 3345 mode the content of non-printable OCTET STRINGs is output in a 3346 style similar to INTEGERs, but with '[HEX DUMP]' prepended to 3347 avoid the appearance of a printable string. 3348 [Nils Larsch <nla@trustcenter.de>] 3349 3350 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access 3351 functions 3352 EC_GROUP_set_asn1_flag() 3353 EC_GROUP_get_asn1_flag() 3354 EC_GROUP_set_point_conversion_form() 3355 EC_GROUP_get_point_conversion_form() 3356 These control ASN1 encoding details: 3357 - Curves (i.e., groups) are encoded explicitly unless asn1_flag 3358 has been set to OPENSSL_EC_NAMED_CURVE. 3359 - Points are encoded in uncompressed form by default; options for 3360 asn1_for are as for point2oct, namely 3361 POINT_CONVERSION_COMPRESSED 3362 POINT_CONVERSION_UNCOMPRESSED 3363 POINT_CONVERSION_HYBRID 3364 3365 Also add 'seed' and 'seed_len' members to EC_GROUP with access 3366 functions 3367 EC_GROUP_set_seed() 3368 EC_GROUP_get0_seed() 3369 EC_GROUP_get_seed_len() 3370 This is used only for ASN1 purposes (so far). 3371 [Nils Larsch <nla@trustcenter.de>] 3372 3373 *) Add 'field_type' member to EC_METHOD, which holds the NID 3374 of the appropriate field type OID. The new function 3375 EC_METHOD_get_field_type() returns this value. 3376 [Nils Larsch <nla@trustcenter.de>] 3377 3378 *) Add functions 3379 EC_POINT_point2bn() 3380 EC_POINT_bn2point() 3381 EC_POINT_point2hex() 3382 EC_POINT_hex2point() 3383 providing useful interfaces to EC_POINT_point2oct() and 3384 EC_POINT_oct2point(). 3385 [Nils Larsch <nla@trustcenter.de>] 3386 3387 *) Change internals of the EC library so that the functions 3388 EC_GROUP_set_generator() 3389 EC_GROUP_get_generator() 3390 EC_GROUP_get_order() 3391 EC_GROUP_get_cofactor() 3392 are implemented directly in crypto/ec/ec_lib.c and not dispatched 3393 to methods, which would lead to unnecessary code duplication when 3394 adding different types of curves. 3395 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller] 3396 3397 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM 3398 arithmetic, and such that modified wNAFs are generated 3399 (which avoid length expansion in many cases). 3400 [Bodo Moeller] 3401 3402 *) Add a function EC_GROUP_check_discriminant() (defined via 3403 EC_METHOD) that verifies that the curve discriminant is non-zero. 3404 3405 Add a function EC_GROUP_check() that makes some sanity tests 3406 on a EC_GROUP, its generator and order. This includes 3407 EC_GROUP_check_discriminant(). 3408 [Nils Larsch <nla@trustcenter.de>] 3409 3410 *) Add ECDSA in new directory crypto/ecdsa/. 3411 3412 Add applications 'openssl ecparam' and 'openssl ecdsa' 3413 (these are based on 'openssl dsaparam' and 'openssl dsa'). 3414 3415 ECDSA support is also included in various other files across the 3416 library. Most notably, 3417 - 'openssl req' now has a '-newkey ecdsa:file' option; 3418 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA; 3419 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and 3420 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make 3421 them suitable for ECDSA where domain parameters must be 3422 extracted before the specific public key; 3423 - ECDSA engine support has been added. 3424 [Nils Larsch <nla@trustcenter.de>] 3425 3426 *) Include some named elliptic curves, and add OIDs from X9.62, 3427 SECG, and WAP/WTLS. Each curve can be obtained from the new 3428 function 3429 EC_GROUP_new_by_curve_name(), 3430 and the list of available named curves can be obtained with 3431 EC_get_builtin_curves(). 3432 Also add a 'curve_name' member to EC_GROUP objects, which can be 3433 accessed via 3434 EC_GROUP_set_curve_name() 3435 EC_GROUP_get_curve_name() 3436 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller] 3437 3438 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 3439 was actually never needed) and in BN_mul(). The removal in BN_mul() 3440 required a small change in bn_mul_part_recursive() and the addition 3441 of the functions bn_cmp_part_words(), bn_sub_part_words() and 3442 bn_add_part_words(), which do the same thing as bn_cmp_words(), 3443 bn_sub_words() and bn_add_words() except they take arrays with 3444 differing sizes. 3445 [Richard Levitte] 3446 3447 Changes between 0.9.7l and 0.9.7m [23 Feb 2007] 3448 3449 *) Cleanse PEM buffers before freeing them since they may contain 3450 sensitive data. 3451 [Benjamin Bennett <ben@psc.edu>] 3452 3453 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 3454 a ciphersuite string such as "DEFAULT:RSA" cannot enable 3455 authentication-only ciphersuites. 3456 [Bodo Moeller] 3457 3458 *) Since AES128 and AES256 share a single mask bit in the logic of 3459 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 3460 kludge to work properly if AES128 is available and AES256 isn't. 3461 [Victor Duchovni] 3462 3463 *) Expand security boundary to match 1.1.1 module. 3464 [Steve Henson] 3465 3466 *) Remove redundant features: hash file source, editing of test vectors 3467 modify fipsld to use external fips_premain.c signature. 3468 [Steve Henson] 3469 3470 *) New perl script mkfipsscr.pl to create shell scripts or batch files to 3471 run algorithm test programs. 3472 [Steve Henson] 3473 3474 *) Make algorithm test programs more tolerant of whitespace. 3475 [Steve Henson] 3476 3477 *) Have SSL/TLS server implementation tolerate "mismatched" record 3478 protocol version while receiving ClientHello even if the 3479 ClientHello is fragmented. (The server can't insist on the 3480 particular protocol version it has chosen before the ServerHello 3481 message has informed the client about his choice.) 3482 [Bodo Moeller] 3483 3484 *) Load error codes if they are not already present instead of using a 3485 static variable. This allows them to be cleanly unloaded and reloaded. 3486 [Steve Henson] 3487 3488 Changes between 0.9.7k and 0.9.7l [28 Sep 2006] 3489 3490 *) Introduce limits to prevent malicious keys being able to 3491 cause a denial of service. (CVE-2006-2940) 3492 [Steve Henson, Bodo Moeller] 3493 3494 *) Fix ASN.1 parsing of certain invalid structures that can result 3495 in a denial of service. (CVE-2006-2937) [Steve Henson] 3496 3497 *) Fix buffer overflow in SSL_get_shared_ciphers() function. 3498 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team] 3499 3500 *) Fix SSL client code which could crash if connecting to a 3501 malicious SSLv2 server. (CVE-2006-4343) 3502 [Tavis Ormandy and Will Drewry, Google Security Team] 3503 3504 *) Change ciphersuite string processing so that an explicit 3505 ciphersuite selects this one ciphersuite (so that "AES256-SHA" 3506 will no longer include "AES128-SHA"), and any other similar 3507 ciphersuite (same bitmap) from *other* protocol versions (so that 3508 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the 3509 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining 3510 changes from 0.9.8b and 0.9.8d. 3511 [Bodo Moeller] 3512 3513 Changes between 0.9.7j and 0.9.7k [05 Sep 2006] 3514 3515 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 3516 (CVE-2006-4339) [Ben Laurie and Google Security Team] 3517 3518 *) Change the Unix randomness entropy gathering to use poll() when 3519 possible instead of select(), since the latter has some 3520 undesirable limitations. 3521 [Darryl Miles via Richard Levitte and Bodo Moeller] 3522 3523 *) Disable rogue ciphersuites: 3524 3525 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 3526 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 3527 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 3528 3529 The latter two were purportedly from 3530 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 3531 appear there. 3532 3533 Also deactive the remaining ciphersuites from 3534 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 3535 unofficial, and the ID has long expired. 3536 [Bodo Moeller] 3537 3538 *) Fix RSA blinding Heisenbug (problems sometimes occured on 3539 dual-core machines) and other potential thread-safety issues. 3540 [Bodo Moeller] 3541 3542 Changes between 0.9.7i and 0.9.7j [04 May 2006] 3543 3544 *) Adapt fipsld and the build system to link against the validated FIPS 3545 module in FIPS mode. 3546 [Steve Henson] 3547 3548 *) Fixes for VC++ 2005 build under Windows. 3549 [Steve Henson] 3550 3551 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make 3552 from a Windows bash shell such as MSYS. It is autodetected from the 3553 "config" script when run from a VC++ environment. Modify standard VC++ 3554 build to use fipscanister.o from the GNU make build. 3555 [Steve Henson] 3556 3557 Changes between 0.9.7h and 0.9.7i [14 Oct 2005] 3558 3559 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS. 3560 The value now differs depending on if you build for FIPS or not. 3561 BEWARE! A program linked with a shared FIPSed libcrypto can't be 3562 safely run with a non-FIPSed libcrypto, as it may crash because of 3563 the difference induced by this change. 3564 [Andy Polyakov] 3565 3566 Changes between 0.9.7g and 0.9.7h [11 Oct 2005] 3567 3568 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 3569 (part of SSL_OP_ALL). This option used to disable the 3570 countermeasure against man-in-the-middle protocol-version 3571 rollback in the SSL 2.0 server implementation, which is a bad 3572 idea. (CVE-2005-2969) 3573 3574 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 3575 for Information Security, National Institute of Advanced Industrial 3576 Science and Technology [AIST], Japan)] 3577 3578 *) Minimal support for X9.31 signatures and PSS padding modes. This is 3579 mainly for FIPS compliance and not fully integrated at this stage. 3580 [Steve Henson] 3581 3582 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform 3583 the exponentiation using a fixed-length exponent. (Otherwise, 3584 the information leaked through timing could expose the secret key 3585 after many signatures; cf. Bleichenbacher's attack on DSA with 3586 biased k.) 3587 [Bodo Moeller] 3588 3589 *) Make a new fixed-window mod_exp implementation the default for 3590 RSA, DSA, and DH private-key operations so that the sequence of 3591 squares and multiplies and the memory access pattern are 3592 independent of the particular secret key. This will mitigate 3593 cache-timing and potential related attacks. 3594 3595 BN_mod_exp_mont_consttime() is the new exponentiation implementation, 3596 and this is automatically used by BN_mod_exp_mont() if the new flag 3597 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH 3598 will use this BN flag for private exponents unless the flag 3599 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or 3600 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set. 3601 3602 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller] 3603 3604 *) Change the client implementation for SSLv23_method() and 3605 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0 3606 Client Hello message format if the SSL_OP_NO_SSLv2 option is set. 3607 (Previously, the SSL 2.0 backwards compatible Client Hello 3608 message format would be used even with SSL_OP_NO_SSLv2.) 3609 [Bodo Moeller] 3610 3611 *) Add support for smime-type MIME parameter in S/MIME messages which some 3612 clients need. 3613 [Steve Henson] 3614 3615 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in 3616 a threadsafe manner. Modify rsa code to use new function and add calls 3617 to dsa and dh code (which had race conditions before). 3618 [Steve Henson] 3619 3620 *) Include the fixed error library code in the C error file definitions 3621 instead of fixing them up at runtime. This keeps the error code 3622 structures constant. 3623 [Steve Henson] 3624 3625 Changes between 0.9.7f and 0.9.7g [11 Apr 2005] 3626 3627 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after 3628 OpenSSL 0.9.8.] 3629 3630 *) Fixes for newer kerberos headers. NB: the casts are needed because 3631 the 'length' field is signed on one version and unsigned on another 3632 with no (?) obvious way to tell the difference, without these VC++ 3633 complains. Also the "definition" of FAR (blank) is no longer included 3634 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up 3635 some needed definitions. 3636 [Steve Henson] 3637 3638 *) Undo Cygwin change. 3639 [Ulf M�ller] 3640 3641 *) Added support for proxy certificates according to RFC 3820. 3642 Because they may be a security thread to unaware applications, 3643 they must be explicitely allowed in run-time. See 3644 docs/HOWTO/proxy_certificates.txt for further information. 3645 [Richard Levitte] 3646 3647 Changes between 0.9.7e and 0.9.7f [22 Mar 2005] 3648 3649 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating 3650 server and client random values. Previously 3651 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in 3652 less random data when sizeof(time_t) > 4 (some 64 bit platforms). 3653 3654 This change has negligible security impact because: 3655 3656 1. Server and client random values still have 24 bytes of pseudo random 3657 data. 3658 3659 2. Server and client random values are sent in the clear in the initial 3660 handshake. 3661 3662 3. The master secret is derived using the premaster secret (48 bytes in 3663 size for static RSA ciphersuites) as well as client server and random 3664 values. 3665 3666 The OpenSSL team would like to thank the UK NISCC for bringing this issue 3667 to our attention. 3668 3669 [Stephen Henson, reported by UK NISCC] 3670 3671 *) Use Windows randomness collection on Cygwin. 3672 [Ulf M�ller] 3673 3674 *) Fix hang in EGD/PRNGD query when communication socket is closed 3675 prematurely by EGD/PRNGD. 3676 [Darren Tucker <dtucker@zip.com.au> via Lutz J�nicke, resolves #1014] 3677 3678 *) Prompt for pass phrases when appropriate for PKCS12 input format. 3679 [Steve Henson] 3680 3681 *) Back-port of selected performance improvements from development 3682 branch, as well as improved support for PowerPC platforms. 3683 [Andy Polyakov] 3684 3685 *) Add lots of checks for memory allocation failure, error codes to indicate 3686 failure and freeing up memory if a failure occurs. 3687 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson] 3688 3689 *) Add new -passin argument to dgst. 3690 [Steve Henson] 3691 3692 *) Perform some character comparisons of different types in X509_NAME_cmp: 3693 this is needed for some certificates that reencode DNs into UTF8Strings 3694 (in violation of RFC3280) and can't or wont issue name rollover 3695 certificates. 3696 [Steve Henson] 3697 3698 *) Make an explicit check during certificate validation to see that 3699 the CA setting in each certificate on the chain is correct. As a 3700 side effect always do the following basic checks on extensions, 3701 not just when there's an associated purpose to the check: 3702 3703 - if there is an unhandled critical extension (unless the user 3704 has chosen to ignore this fault) 3705 - if the path length has been exceeded (if one is set at all) 3706 - that certain extensions fit the associated purpose (if one has 3707 been given) 3708 [Richard Levitte] 3709 3710 Changes between 0.9.7d and 0.9.7e [25 Oct 2004] 3711 3712 *) Avoid a race condition when CRLs are checked in a multi threaded 3713 environment. This would happen due to the reordering of the revoked 3714 entries during signature checking and serial number lookup. Now the 3715 encoding is cached and the serial number sort performed under a lock. 3716 Add new STACK function sk_is_sorted(). 3717 [Steve Henson] 3718 3719 *) Add Delta CRL to the extension code. 3720 [Steve Henson] 3721 3722 *) Various fixes to s3_pkt.c so alerts are sent properly. 3723 [David Holmes <d.holmes@f5.com>] 3724 3725 *) Reduce the chances of duplicate issuer name and serial numbers (in 3726 violation of RFC3280) using the OpenSSL certificate creation utilities. 3727 This is done by creating a random 64 bit value for the initial serial 3728 number when a serial number file is created or when a self signed 3729 certificate is created using 'openssl req -x509'. The initial serial 3730 number file is created using 'openssl x509 -next_serial' in CA.pl 3731 rather than being initialized to 1. 3732 [Steve Henson] 3733 3734 Changes between 0.9.7c and 0.9.7d [17 Mar 2004] 3735 3736 *) Fix null-pointer assignment in do_change_cipher_spec() revealed 3737 by using the Codenomicon TLS Test Tool (CVE-2004-0079) 3738 [Joe Orton, Steve Henson] 3739 3740 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites 3741 (CVE-2004-0112) 3742 [Joe Orton, Steve Henson] 3743 3744 *) Make it possible to have multiple active certificates with the same 3745 subject in the CA index file. This is done only if the keyword 3746 'unique_subject' is set to 'no' in the main CA section (default 3747 if 'CA_default') of the configuration file. The value is saved 3748 with the database itself in a separate index attribute file, 3749 named like the index file with '.attr' appended to the name. 3750 [Richard Levitte] 3751 3752 *) X509 verify fixes. Disable broken certificate workarounds when 3753 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if 3754 keyUsage extension present. Don't accept CRLs with unhandled critical 3755 extensions: since verify currently doesn't process CRL extensions this 3756 rejects a CRL with *any* critical extensions. Add new verify error codes 3757 for these cases. 3758 [Steve Henson] 3759 3760 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue. 3761 A clarification of RFC2560 will require the use of OCTET STRINGs and 3762 some implementations cannot handle the current raw format. Since OpenSSL 3763 copies and compares OCSP nonces as opaque blobs without any attempt at 3764 parsing them this should not create any compatibility issues. 3765 [Steve Henson] 3766 3767 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when 3768 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without 3769 this HMAC (and other) operations are several times slower than OpenSSL 3770 < 0.9.7. 3771 [Steve Henson] 3772 3773 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex(). 3774 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>] 3775 3776 *) Use the correct content when signing type "other". 3777 [Steve Henson] 3778 3779 Changes between 0.9.7b and 0.9.7c [30 Sep 2003] 3780 3781 *) Fix various bugs revealed by running the NISCC test suite: 3782 3783 Stop out of bounds reads in the ASN1 code when presented with 3784 invalid tags (CVE-2003-0543 and CVE-2003-0544). 3785 3786 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545). 3787 3788 If verify callback ignores invalid public key errors don't try to check 3789 certificate signature with the NULL public key. 3790 3791 [Steve Henson] 3792 3793 *) New -ignore_err option in ocsp application to stop the server 3794 exiting on the first error in a request. 3795 [Steve Henson] 3796 3797 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 3798 if the server requested one: as stated in TLS 1.0 and SSL 3.0 3799 specifications. 3800 [Steve Henson] 3801 3802 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 3803 extra data after the compression methods not only for TLS 1.0 3804 but also for SSL 3.0 (as required by the specification). 3805 [Bodo Moeller; problem pointed out by Matthias Loepfe] 3806 3807 *) Change X509_certificate_type() to mark the key as exported/exportable 3808 when it's 512 *bits* long, not 512 bytes. 3809 [Richard Levitte] 3810 3811 *) Change AES_cbc_encrypt() so it outputs exact multiple of 3812 blocks during encryption. 3813 [Richard Levitte] 3814 3815 *) Various fixes to base64 BIO and non blocking I/O. On write 3816 flushes were not handled properly if the BIO retried. On read 3817 data was not being buffered properly and had various logic bugs. 3818 This also affects blocking I/O when the data being decoded is a 3819 certain size. 3820 [Steve Henson] 3821 3822 *) Various S/MIME bugfixes and compatibility changes: 3823 output correct application/pkcs7 MIME type if 3824 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures. 3825 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening 3826 of files as .eml work). Correctly handle very long lines in MIME 3827 parser. 3828 [Steve Henson] 3829 3830 Changes between 0.9.7a and 0.9.7b [10 Apr 2003] 3831 3832 *) Countermeasure against the Klima-Pokorny-Rosa extension of 3833 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 3834 a protocol version number mismatch like a decryption error 3835 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 3836 [Bodo Moeller] 3837 3838 *) Turn on RSA blinding by default in the default implementation 3839 to avoid a timing attack. Applications that don't want it can call 3840 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 3841 They would be ill-advised to do so in most cases. 3842 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller] 3843 3844 *) Change RSA blinding code so that it works when the PRNG is not 3845 seeded (in this case, the secret RSA exponent is abused as 3846 an unpredictable seed -- if it is not unpredictable, there 3847 is no point in blinding anyway). Make RSA blinding thread-safe 3848 by remembering the creator's thread ID in rsa->blinding and 3849 having all other threads use local one-time blinding factors 3850 (this requires more computation than sharing rsa->blinding, but 3851 avoids excessive locking; and if an RSA object is not shared 3852 between threads, blinding will still be very fast). 3853 [Bodo Moeller] 3854 3855 *) Fixed a typo bug that would cause ENGINE_set_default() to set an 3856 ENGINE as defaults for all supported algorithms irrespective of 3857 the 'flags' parameter. 'flags' is now honoured, so applications 3858 should make sure they are passing it correctly. 3859 [Geoff Thorpe] 3860 3861 *) Target "mingw" now allows native Windows code to be generated in 3862 the Cygwin environment as well as with the MinGW compiler. 3863 [Ulf Moeller] 3864 3865 Changes between 0.9.7 and 0.9.7a [19 Feb 2003] 3866 3867 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 3868 via timing by performing a MAC computation even if incorrrect 3869 block cipher padding has been found. This is a countermeasure 3870 against active attacks where the attacker has to distinguish 3871 between bad padding and a MAC verification error. (CVE-2003-0078) 3872 3873 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 3874 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 3875 Martin Vuagnoux (EPFL, Ilion)] 3876 3877 *) Make the no-err option work as intended. The intention with no-err 3878 is not to have the whole error stack handling routines removed from 3879 libcrypto, it's only intended to remove all the function name and 3880 reason texts, thereby removing some of the footprint that may not 3881 be interesting if those errors aren't displayed anyway. 3882 3883 NOTE: it's still possible for any application or module to have it's 3884 own set of error texts inserted. The routines are there, just not 3885 used by default when no-err is given. 3886 [Richard Levitte] 3887 3888 *) Add support for FreeBSD on IA64. 3889 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454] 3890 3891 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT 3892 Kerberos function mit_des_cbc_cksum(). Before this change, 3893 the value returned by DES_cbc_cksum() was like the one from 3894 mit_des_cbc_cksum(), except the bytes were swapped. 3895 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte] 3896 3897 *) Allow an application to disable the automatic SSL chain building. 3898 Before this a rather primitive chain build was always performed in 3899 ssl3_output_cert_chain(): an application had no way to send the 3900 correct chain if the automatic operation produced an incorrect result. 3901 3902 Now the chain builder is disabled if either: 3903 3904 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert(). 3905 3906 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set. 3907 3908 The reasoning behind this is that an application would not want the 3909 auto chain building to take place if extra chain certificates are 3910 present and it might also want a means of sending no additional 3911 certificates (for example the chain has two certificates and the 3912 root is omitted). 3913 [Steve Henson] 3914 3915 *) Add the possibility to build without the ENGINE framework. 3916 [Steven Reddie <smr@essemer.com.au> via Richard Levitte] 3917 3918 *) Under Win32 gmtime() can return NULL: check return value in 3919 OPENSSL_gmtime(). Add error code for case where gmtime() fails. 3920 [Steve Henson] 3921 3922 *) DSA routines: under certain error conditions uninitialized BN objects 3923 could be freed. Solution: make sure initialization is performed early 3924 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>, 3925 Nils Larsch <nla@trustcenter.de> via PR#459) 3926 [Lutz Jaenicke] 3927 3928 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly 3929 checked on reconnect on the client side, therefore session resumption 3930 could still fail with a "ssl session id is different" error. This 3931 behaviour is masked when SSL_OP_ALL is used due to 3932 SSL_OP_MICROSOFT_SESS_ID_BUG being set. 3933 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 3934 followup to PR #377. 3935 [Lutz Jaenicke] 3936 3937 *) IA-32 assembler support enhancements: unified ELF targets, support 3938 for SCO/Caldera platforms, fix for Cygwin shared build. 3939 [Andy Polyakov] 3940 3941 *) Add support for FreeBSD on sparc64. As a consequence, support for 3942 FreeBSD on non-x86 processors is separate from x86 processors on 3943 the config script, much like the NetBSD support. 3944 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>] 3945 3946 Changes between 0.9.6h and 0.9.7 [31 Dec 2002] 3947 3948 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after 3949 OpenSSL 0.9.7.] 3950 3951 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED 3952 code (06) was taken as the first octet of the session ID and the last 3953 octet was ignored consequently. As a result SSLv2 client side session 3954 caching could not have worked due to the session ID mismatch between 3955 client and server. 3956 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 3957 PR #377. 3958 [Lutz Jaenicke] 3959 3960 *) Change the declaration of needed Kerberos libraries to use EX_LIBS 3961 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is 3962 removed entirely. 3963 [Richard Levitte] 3964 3965 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it 3966 seems that in spite of existing for more than a year, many application 3967 author have done nothing to provide the necessary callbacks, which 3968 means that this particular engine will not work properly anywhere. 3969 This is a very unfortunate situation which forces us, in the name 3970 of usability, to give the hw_ncipher.c a static lock, which is part 3971 of libcrypto. 3972 NOTE: This is for the 0.9.7 series ONLY. This hack will never 3973 appear in 0.9.8 or later. We EXPECT application authors to have 3974 dealt properly with this when 0.9.8 is released (unless we actually 3975 make such changes in the libcrypto locking code that changes will 3976 have to be made anyway). 3977 [Richard Levitte] 3978 3979 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content 3980 octets have been read, EOF or an error occurs. Without this change 3981 some truncated ASN1 structures will not produce an error. 3982 [Steve Henson] 3983 3984 *) Disable Heimdal support, since it hasn't been fully implemented. 3985 Still give the possibility to force the use of Heimdal, but with 3986 warnings and a request that patches get sent to openssl-dev. 3987 [Richard Levitte] 3988 3989 *) Add the VC-CE target, introduce the WINCE sysname, and add 3990 INSTALL.WCE and appropriate conditionals to make it build. 3991 [Steven Reddie <smr@essemer.com.au> via Richard Levitte] 3992 3993 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and 3994 cygssl-x.y.z.dll, where x, y and z are the major, minor and 3995 edit numbers of the version. 3996 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte] 3997 3998 *) Introduce safe string copy and catenation functions 3999 (BUF_strlcpy() and BUF_strlcat()). 4000 [Ben Laurie (CHATS) and Richard Levitte] 4001 4002 *) Avoid using fixed-size buffers for one-line DNs. 4003 [Ben Laurie (CHATS)] 4004 4005 *) Add BUF_MEM_grow_clean() to avoid information leakage when 4006 resizing buffers containing secrets, and use where appropriate. 4007 [Ben Laurie (CHATS)] 4008 4009 *) Avoid using fixed size buffers for configuration file location. 4010 [Ben Laurie (CHATS)] 4011 4012 *) Avoid filename truncation for various CA files. 4013 [Ben Laurie (CHATS)] 4014 4015 *) Use sizeof in preference to magic numbers. 4016 [Ben Laurie (CHATS)] 4017 4018 *) Avoid filename truncation in cert requests. 4019 [Ben Laurie (CHATS)] 4020 4021 *) Add assertions to check for (supposedly impossible) buffer 4022 overflows. 4023 [Ben Laurie (CHATS)] 4024 4025 *) Don't cache truncated DNS entries in the local cache (this could 4026 potentially lead to a spoofing attack). 4027 [Ben Laurie (CHATS)] 4028 4029 *) Fix various buffers to be large enough for hex/decimal 4030 representations in a platform independent manner. 4031 [Ben Laurie (CHATS)] 4032 4033 *) Add CRYPTO_realloc_clean() to avoid information leakage when 4034 resizing buffers containing secrets, and use where appropriate. 4035 [Ben Laurie (CHATS)] 4036 4037 *) Add BIO_indent() to avoid much slightly worrying code to do 4038 indents. 4039 [Ben Laurie (CHATS)] 4040 4041 *) Convert sprintf()/BIO_puts() to BIO_printf(). 4042 [Ben Laurie (CHATS)] 4043 4044 *) buffer_gets() could terminate with the buffer only half 4045 full. Fixed. 4046 [Ben Laurie (CHATS)] 4047 4048 *) Add assertions to prevent user-supplied crypto functions from 4049 overflowing internal buffers by having large block sizes, etc. 4050 [Ben Laurie (CHATS)] 4051 4052 *) New OPENSSL_assert() macro (similar to assert(), but enabled 4053 unconditionally). 4054 [Ben Laurie (CHATS)] 4055 4056 *) Eliminate unused copy of key in RC4. 4057 [Ben Laurie (CHATS)] 4058 4059 *) Eliminate unused and incorrectly sized buffers for IV in pem.h. 4060 [Ben Laurie (CHATS)] 4061 4062 *) Fix off-by-one error in EGD path. 4063 [Ben Laurie (CHATS)] 4064 4065 *) If RANDFILE path is too long, ignore instead of truncating. 4066 [Ben Laurie (CHATS)] 4067 4068 *) Eliminate unused and incorrectly sized X.509 structure 4069 CBCParameter. 4070 [Ben Laurie (CHATS)] 4071 4072 *) Eliminate unused and dangerous function knumber(). 4073 [Ben Laurie (CHATS)] 4074 4075 *) Eliminate unused and dangerous structure, KSSL_ERR. 4076 [Ben Laurie (CHATS)] 4077 4078 *) Protect against overlong session ID context length in an encoded 4079 session object. Since these are local, this does not appear to be 4080 exploitable. 4081 [Ben Laurie (CHATS)] 4082 4083 *) Change from security patch (see 0.9.6e below) that did not affect 4084 the 0.9.6 release series: 4085 4086 Remote buffer overflow in SSL3 protocol - an attacker could 4087 supply an oversized master key in Kerberos-enabled versions. 4088 (CVE-2002-0657) 4089 [Ben Laurie (CHATS)] 4090 4091 *) Change the SSL kerb5 codes to match RFC 2712. 4092 [Richard Levitte] 4093 4094 *) Make -nameopt work fully for req and add -reqopt switch. 4095 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson] 4096 4097 *) The "block size" for block ciphers in CFB and OFB mode should be 1. 4098 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>] 4099 4100 *) Make sure tests can be performed even if the corresponding algorithms 4101 have been removed entirely. This was also the last step to make 4102 OpenSSL compilable with DJGPP under all reasonable conditions. 4103 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>] 4104 4105 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT 4106 to allow version independent disabling of normally unselected ciphers, 4107 which may be activated as a side-effect of selecting a single cipher. 4108 4109 (E.g., cipher list string "RSA" enables ciphersuites that are left 4110 out of "ALL" because they do not provide symmetric encryption. 4111 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.) 4112 [Lutz Jaenicke, Bodo Moeller] 4113 4114 *) Add appropriate support for separate platform-dependent build 4115 directories. The recommended way to make a platform-dependent 4116 build directory is the following (tested on Linux), maybe with 4117 some local tweaks: 4118 4119 # Place yourself outside of the OpenSSL source tree. In 4120 # this example, the environment variable OPENSSL_SOURCE 4121 # is assumed to contain the absolute OpenSSL source directory. 4122 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`" 4123 cd objtree/"`uname -s`-`uname -r`-`uname -m`" 4124 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do 4125 mkdir -p `dirname $F` 4126 ln -s $OPENSSL_SOURCE/$F $F 4127 done 4128 4129 To be absolutely sure not to disturb the source tree, a "make clean" 4130 is a good thing. If it isn't successfull, don't worry about it, 4131 it probably means the source directory is very clean. 4132 [Richard Levitte] 4133 4134 *) Make sure any ENGINE control commands make local copies of string 4135 pointers passed to them whenever necessary. Otherwise it is possible 4136 the caller may have overwritten (or deallocated) the original string 4137 data when a later ENGINE operation tries to use the stored values. 4138 [G�tz Babin-Ebell <babinebell@trustcenter.de>] 4139 4140 *) Improve diagnostics in file reading and command-line digests. 4141 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>] 4142 4143 *) Add AES modes CFB and OFB to the object database. Correct an 4144 error in AES-CFB decryption. 4145 [Richard Levitte] 4146 4147 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this 4148 allows existing EVP_CIPHER_CTX structures to be reused after 4149 calling EVP_*Final(). This behaviour is used by encryption 4150 BIOs and some applications. This has the side effect that 4151 applications must explicitly clean up cipher contexts with 4152 EVP_CIPHER_CTX_cleanup() or they will leak memory. 4153 [Steve Henson] 4154 4155 *) Check the values of dna and dnb in bn_mul_recursive before calling 4156 bn_mul_comba (a non zero value means the a or b arrays do not contain 4157 n2 elements) and fallback to bn_mul_normal if either is not zero. 4158 [Steve Henson] 4159 4160 *) Fix escaping of non-ASCII characters when using the -subj option 4161 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>) 4162 [Lutz Jaenicke] 4163 4164 *) Make object definitions compliant to LDAP (RFC2256): SN is the short 4165 form for "surname", serialNumber has no short form. 4166 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798; 4167 therefore remove "mail" short name for "internet 7". 4168 The OID for unique identifiers in X509 certificates is 4169 x500UniqueIdentifier, not uniqueIdentifier. 4170 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>) 4171 [Lutz Jaenicke] 4172 4173 *) Add an "init" command to the ENGINE config module and auto initialize 4174 ENGINEs. Without any "init" command the ENGINE will be initialized 4175 after all ctrl commands have been executed on it. If init=1 the 4176 ENGINE is initailized at that point (ctrls before that point are run 4177 on the uninitialized ENGINE and after on the initialized one). If 4178 init=0 then the ENGINE will not be iniatialized at all. 4179 [Steve Henson] 4180 4181 *) Fix the 'app_verify_callback' interface so that the user-defined 4182 argument is actually passed to the callback: In the 4183 SSL_CTX_set_cert_verify_callback() prototype, the callback 4184 declaration has been changed from 4185 int (*cb)() 4186 into 4187 int (*cb)(X509_STORE_CTX *,void *); 4188 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call 4189 i=s->ctx->app_verify_callback(&ctx) 4190 has been changed into 4191 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg). 4192 4193 To update applications using SSL_CTX_set_cert_verify_callback(), 4194 a dummy argument can be added to their callback functions. 4195 [D. K. Smetters <smetters@parc.xerox.com>] 4196 4197 *) Added the '4758cca' ENGINE to support IBM 4758 cards. 4198 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe] 4199 4200 *) Add and OPENSSL_LOAD_CONF define which will cause 4201 OpenSSL_add_all_algorithms() to load the openssl.cnf config file. 4202 This allows older applications to transparently support certain 4203 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading. 4204 Two new functions OPENSSL_add_all_algorithms_noconf() which will never 4205 load the config file and OPENSSL_add_all_algorithms_conf() which will 4206 always load it have also been added. 4207 [Steve Henson] 4208 4209 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES. 4210 Adjust NIDs and EVP layer. 4211 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte] 4212 4213 *) Config modules support in openssl utility. 4214 4215 Most commands now load modules from the config file, 4216 though in a few (such as version) this isn't done 4217 because it couldn't be used for anything. 4218 4219 In the case of ca and req the config file used is 4220 the same as the utility itself: that is the -config 4221 command line option can be used to specify an 4222 alternative file. 4223 [Steve Henson] 4224 4225 *) Move default behaviour from OPENSSL_config(). If appname is NULL 4226 use "openssl_conf" if filename is NULL use default openssl config file. 4227 [Steve Henson] 4228 4229 *) Add an argument to OPENSSL_config() to allow the use of an alternative 4230 config section name. Add a new flag to tolerate a missing config file 4231 and move code to CONF_modules_load_file(). 4232 [Steve Henson] 4233 4234 *) Support for crypto accelerator cards from Accelerated Encryption 4235 Processing, www.aep.ie. (Use engine 'aep') 4236 The support was copied from 0.9.6c [engine] and adapted/corrected 4237 to work with the new engine framework. 4238 [AEP Inc. and Richard Levitte] 4239 4240 *) Support for SureWare crypto accelerator cards from Baltimore 4241 Technologies. (Use engine 'sureware') 4242 The support was copied from 0.9.6c [engine] and adapted 4243 to work with the new engine framework. 4244 [Richard Levitte] 4245 4246 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually 4247 make the newer ENGINE framework commands for the CHIL engine work. 4248 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte] 4249 4250 *) Make it possible to produce shared libraries on ReliantUNIX. 4251 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte] 4252 4253 *) Add the configuration target debug-linux-ppro. 4254 Make 'openssl rsa' use the general key loading routines 4255 implemented in apps.c, and make those routines able to 4256 handle the key format FORMAT_NETSCAPE and the variant 4257 FORMAT_IISSGC. 4258 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] 4259 4260 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 4261 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] 4262 4263 *) Add -keyform to rsautl, and document -engine. 4264 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>] 4265 4266 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new 4267 BIO_R_NO_SUCH_FILE error code rather than the generic 4268 ERR_R_SYS_LIB error code if fopen() fails with ENOENT. 4269 [Ben Laurie] 4270 4271 *) Add new functions 4272 ERR_peek_last_error 4273 ERR_peek_last_error_line 4274 ERR_peek_last_error_line_data. 4275 These are similar to 4276 ERR_peek_error 4277 ERR_peek_error_line 4278 ERR_peek_error_line_data, 4279 but report on the latest error recorded rather than the first one 4280 still in the error queue. 4281 [Ben Laurie, Bodo Moeller] 4282 4283 *) default_algorithms option in ENGINE config module. This allows things 4284 like: 4285 default_algorithms = ALL 4286 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS 4287 [Steve Henson] 4288 4289 *) Prelminary ENGINE config module. 4290 [Steve Henson] 4291 4292 *) New experimental application configuration code. 4293 [Steve Henson] 4294 4295 *) Change the AES code to follow the same name structure as all other 4296 symmetric ciphers, and behave the same way. Move everything to 4297 the directory crypto/aes, thereby obsoleting crypto/rijndael. 4298 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte] 4299 4300 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c. 4301 [Ben Laurie and Theo de Raadt] 4302 4303 *) Add option to output public keys in req command. 4304 [Massimiliano Pala madwolf@openca.org] 4305 4306 *) Use wNAFs in EC_POINTs_mul() for improved efficiency 4307 (up to about 10% better than before for P-192 and P-224). 4308 [Bodo Moeller] 4309 4310 *) New functions/macros 4311 4312 SSL_CTX_set_msg_callback(ctx, cb) 4313 SSL_CTX_set_msg_callback_arg(ctx, arg) 4314 SSL_set_msg_callback(ssl, cb) 4315 SSL_set_msg_callback_arg(ssl, arg) 4316 4317 to request calling a callback function 4318 4319 void cb(int write_p, int version, int content_type, 4320 const void *buf, size_t len, SSL *ssl, void *arg) 4321 4322 whenever a protocol message has been completely received 4323 (write_p == 0) or sent (write_p == 1). Here 'version' is the 4324 protocol version according to which the SSL library interprets 4325 the current protocol message (SSL2_VERSION, SSL3_VERSION, or 4326 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or 4327 the content type as defined in the SSL 3.0/TLS 1.0 protocol 4328 specification (change_cipher_spec(20), alert(21), handshake(22)). 4329 'buf' and 'len' point to the actual message, 'ssl' to the 4330 SSL object, and 'arg' is the application-defined value set by 4331 SSL[_CTX]_set_msg_callback_arg(). 4332 4333 'openssl s_client' and 'openssl s_server' have new '-msg' options 4334 to enable a callback that displays all protocol messages. 4335 [Bodo Moeller] 4336 4337 *) Change the shared library support so shared libraries are built as 4338 soon as the corresponding static library is finished, and thereby get 4339 openssl and the test programs linked against the shared library. 4340 This still only happens when the keyword "shard" has been given to 4341 the configuration scripts. 4342 4343 NOTE: shared library support is still an experimental thing, and 4344 backward binary compatibility is still not guaranteed. 4345 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte] 4346 4347 *) Add support for Subject Information Access extension. 4348 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>] 4349 4350 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero 4351 additional bytes when new memory had to be allocated, not just 4352 when reusing an existing buffer. 4353 [Bodo Moeller] 4354 4355 *) New command line and configuration option 'utf8' for the req command. 4356 This allows field values to be specified as UTF8 strings. 4357 [Steve Henson] 4358 4359 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel 4360 runs for the former and machine-readable output for the latter. 4361 [Ben Laurie] 4362 4363 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion 4364 of the e-mail address in the DN (i.e., it will go into a certificate 4365 extension only). The new configuration file option 'email_in_dn = no' 4366 has the same effect. 4367 [Massimiliano Pala madwolf@openca.org] 4368 4369 *) Change all functions with names starting with des_ to be starting 4370 with DES_ instead. Add wrappers that are compatible with libdes, 4371 but are named _ossl_old_des_*. Finally, add macros that map the 4372 des_* symbols to the corresponding _ossl_old_des_* if libdes 4373 compatibility is desired. If OpenSSL 0.9.6c compatibility is 4374 desired, the des_* symbols will be mapped to DES_*, with one 4375 exception. 4376 4377 Since we provide two compatibility mappings, the user needs to 4378 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes 4379 compatibility is desired. The default (i.e., when that macro 4380 isn't defined) is OpenSSL 0.9.6c compatibility. 4381 4382 There are also macros that enable and disable the support of old 4383 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT 4384 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those 4385 are defined, the default will apply: to support the old des routines. 4386 4387 In either case, one must include openssl/des.h to get the correct 4388 definitions. Do not try to just include openssl/des_old.h, that 4389 won't work. 4390 4391 NOTE: This is a major break of an old API into a new one. Software 4392 authors are encouraged to switch to the DES_ style functions. Some 4393 time in the future, des_old.h and the libdes compatibility functions 4394 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the 4395 default), and then completely removed. 4396 [Richard Levitte] 4397 4398 *) Test for certificates which contain unsupported critical extensions. 4399 If such a certificate is found during a verify operation it is 4400 rejected by default: this behaviour can be overridden by either 4401 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or 4402 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function 4403 X509_supported_extension() has also been added which returns 1 if a 4404 particular extension is supported. 4405 [Steve Henson] 4406 4407 *) Modify the behaviour of EVP cipher functions in similar way to digests 4408 to retain compatibility with existing code. 4409 [Steve Henson] 4410 4411 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain 4412 compatibility with existing code. In particular the 'ctx' parameter does 4413 not have to be to be initialized before the call to EVP_DigestInit() and 4414 it is tidied up after a call to EVP_DigestFinal(). New function 4415 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function 4416 EVP_MD_CTX_copy() changed to not require the destination to be 4417 initialized valid and new function EVP_MD_CTX_copy_ex() added which 4418 requires the destination to be valid. 4419 4420 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(), 4421 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex(). 4422 [Steve Henson] 4423 4424 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it 4425 so that complete 'Handshake' protocol structures are kept in memory 4426 instead of overwriting 'msg_type' and 'length' with 'body' data. 4427 [Bodo Moeller] 4428 4429 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32. 4430 [Massimo Santin via Richard Levitte] 4431 4432 *) Major restructuring to the underlying ENGINE code. This includes 4433 reduction of linker bloat, separation of pure "ENGINE" manipulation 4434 (initialisation, etc) from functionality dealing with implementations 4435 of specific crypto iterfaces. This change also introduces integrated 4436 support for symmetric ciphers and digest implementations - so ENGINEs 4437 can now accelerate these by providing EVP_CIPHER and EVP_MD 4438 implementations of their own. This is detailed in crypto/engine/README 4439 as it couldn't be adequately described here. However, there are a few 4440 API changes worth noting - some RSA, DSA, DH, and RAND functions that 4441 were changed in the original introduction of ENGINE code have now 4442 reverted back - the hooking from this code to ENGINE is now a good 4443 deal more passive and at run-time, operations deal directly with 4444 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than 4445 dereferencing through an ENGINE pointer any more. Also, the ENGINE 4446 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed - 4447 they were not being used by the framework as there is no concept of a 4448 BIGNUM_METHOD and they could not be generalised to the new 4449 'ENGINE_TABLE' mechanism that underlies the new code. Similarly, 4450 ENGINE_cpy() has been removed as it cannot be consistently defined in 4451 the new code. 4452 [Geoff Thorpe] 4453 4454 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds. 4455 [Steve Henson] 4456 4457 *) Change mkdef.pl to sort symbols that get the same entry number, 4458 and make sure the automatically generated functions ERR_load_* 4459 become part of libeay.num as well. 4460 [Richard Levitte] 4461 4462 *) New function SSL_renegotiate_pending(). This returns true once 4463 renegotiation has been requested (either SSL_renegotiate() call 4464 or HelloRequest/ClientHello receveived from the peer) and becomes 4465 false once a handshake has been completed. 4466 (For servers, SSL_renegotiate() followed by SSL_do_handshake() 4467 sends a HelloRequest, but does not ensure that a handshake takes 4468 place. SSL_renegotiate_pending() is useful for checking if the 4469 client has followed the request.) 4470 [Bodo Moeller] 4471 4472 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION. 4473 By default, clients may request session resumption even during 4474 renegotiation (if session ID contexts permit); with this option, 4475 session resumption is possible only in the first handshake. 4476 4477 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes 4478 more bits available for options that should not be part of 4479 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION). 4480 [Bodo Moeller] 4481 4482 *) Add some demos for certificate and certificate request creation. 4483 [Steve Henson] 4484 4485 *) Make maximum certificate chain size accepted from the peer application 4486 settable (SSL*_get/set_max_cert_list()), as proposed by 4487 "Douglas E. Engert" <deengert@anl.gov>. 4488 [Lutz Jaenicke] 4489 4490 *) Add support for shared libraries for Unixware-7 4491 (Boyd Lynn Gerber <gerberb@zenez.com>). 4492 [Lutz Jaenicke] 4493 4494 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to 4495 be done prior to destruction. Use this to unload error strings from 4496 ENGINEs that load their own error strings. NB: This adds two new API 4497 functions to "get" and "set" this destroy handler in an ENGINE. 4498 [Geoff Thorpe] 4499 4500 *) Alter all existing ENGINE implementations (except "openssl" and 4501 "openbsd") to dynamically instantiate their own error strings. This 4502 makes them more flexible to be built both as statically-linked ENGINEs 4503 and self-contained shared-libraries loadable via the "dynamic" ENGINE. 4504 Also, add stub code to each that makes building them as self-contained 4505 shared-libraries easier (see README.ENGINE). 4506 [Geoff Thorpe] 4507 4508 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE 4509 implementations into applications that are completely implemented in 4510 self-contained shared-libraries. The "dynamic" ENGINE exposes control 4511 commands that can be used to configure what shared-library to load and 4512 to control aspects of the way it is handled. Also, made an update to 4513 the README.ENGINE file that brings its information up-to-date and 4514 provides some information and instructions on the "dynamic" ENGINE 4515 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc). 4516 [Geoff Thorpe] 4517 4518 *) Make it possible to unload ranges of ERR strings with a new 4519 "ERR_unload_strings" function. 4520 [Geoff Thorpe] 4521 4522 *) Add a copy() function to EVP_MD. 4523 [Ben Laurie] 4524 4525 *) Make EVP_MD routines take a context pointer instead of just the 4526 md_data void pointer. 4527 [Ben Laurie] 4528 4529 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates 4530 that the digest can only process a single chunk of data 4531 (typically because it is provided by a piece of 4532 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application 4533 is only going to provide a single chunk of data, and hence the 4534 framework needn't accumulate the data for oneshot drivers. 4535 [Ben Laurie] 4536 4537 *) As with "ERR", make it possible to replace the underlying "ex_data" 4538 functions. This change also alters the storage and management of global 4539 ex_data state - it's now all inside ex_data.c and all "class" code (eg. 4540 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class 4541 index counters. The API functions that use this state have been changed 4542 to take a "class_index" rather than pointers to the class's local STACK 4543 and counter, and there is now an API function to dynamically create new 4544 classes. This centralisation allows us to (a) plug a lot of the 4545 thread-safety problems that existed, and (b) makes it possible to clean 4546 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b) 4547 such data would previously have always leaked in application code and 4548 workarounds were in place to make the memory debugging turn a blind eye 4549 to it. Application code that doesn't use this new function will still 4550 leak as before, but their memory debugging output will announce it now 4551 rather than letting it slide. 4552 4553 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change 4554 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now 4555 has a return value to indicate success or failure. 4556 [Geoff Thorpe] 4557 4558 *) Make it possible to replace the underlying "ERR" functions such that the 4559 global state (2 LHASH tables and 2 locks) is only used by the "default" 4560 implementation. This change also adds two functions to "get" and "set" 4561 the implementation prior to it being automatically set the first time 4562 any other ERR function takes place. Ie. an application can call "get", 4563 pass the return value to a module it has just loaded, and that module 4564 can call its own "set" function using that value. This means the 4565 module's "ERR" operations will use (and modify) the error state in the 4566 application and not in its own statically linked copy of OpenSSL code. 4567 [Geoff Thorpe] 4568 4569 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment 4570 reference counts. This performs normal REF_PRINT/REF_CHECK macros on 4571 the operation, and provides a more encapsulated way for external code 4572 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code 4573 to use these functions rather than manually incrementing the counts. 4574 4575 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()". 4576 [Geoff Thorpe] 4577 4578 *) Add EVP test program. 4579 [Ben Laurie] 4580 4581 *) Add symmetric cipher support to ENGINE. Expect the API to change! 4582 [Ben Laurie] 4583 4584 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name() 4585 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(), 4586 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate(). 4587 These allow a CRL to be built without having to access X509_CRL fields 4588 directly. Modify 'ca' application to use new functions. 4589 [Steve Henson] 4590 4591 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended 4592 bug workarounds. Rollback attack detection is a security feature. 4593 The problem will only arise on OpenSSL servers when TLSv1 is not 4594 available (sslv3_server_method() or SSL_OP_NO_TLSv1). 4595 Software authors not wanting to support TLSv1 will have special reasons 4596 for their choice and can explicitly enable this option. 4597 [Bodo Moeller, Lutz Jaenicke] 4598 4599 *) Rationalise EVP so it can be extended: don't include a union of 4600 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX 4601 (similar to those existing for EVP_CIPHER_CTX). 4602 Usage example: 4603 4604 EVP_MD_CTX md; 4605 4606 EVP_MD_CTX_init(&md); /* new function call */ 4607 EVP_DigestInit(&md, EVP_sha1()); 4608 EVP_DigestUpdate(&md, in, len); 4609 EVP_DigestFinal(&md, out, NULL); 4610 EVP_MD_CTX_cleanup(&md); /* new function call */ 4611 4612 [Ben Laurie] 4613 4614 *) Make DES key schedule conform to the usual scheme, as well as 4615 correcting its structure. This means that calls to DES functions 4616 now have to pass a pointer to a des_key_schedule instead of a 4617 plain des_key_schedule (which was actually always a pointer 4618 anyway): E.g., 4619 4620 des_key_schedule ks; 4621 4622 des_set_key_checked(..., &ks); 4623 des_ncbc_encrypt(..., &ks, ...); 4624 4625 (Note that a later change renames 'des_...' into 'DES_...'.) 4626 [Ben Laurie] 4627 4628 *) Initial reduction of linker bloat: the use of some functions, such as 4629 PEM causes large amounts of unused functions to be linked in due to 4630 poor organisation. For example pem_all.c contains every PEM function 4631 which has a knock on effect of linking in large amounts of (unused) 4632 ASN1 code. Grouping together similar functions and splitting unrelated 4633 functions prevents this. 4634 [Steve Henson] 4635 4636 *) Cleanup of EVP macros. 4637 [Ben Laurie] 4638 4639 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the 4640 correct _ecb suffix. 4641 [Ben Laurie] 4642 4643 *) Add initial OCSP responder support to ocsp application. The 4644 revocation information is handled using the text based index 4645 use by the ca application. The responder can either handle 4646 requests generated internally, supplied in files (for example 4647 via a CGI script) or using an internal minimal server. 4648 [Steve Henson] 4649 4650 *) Add configuration choices to get zlib compression for TLS. 4651 [Richard Levitte] 4652 4653 *) Changes to Kerberos SSL for RFC 2712 compliance: 4654 1. Implemented real KerberosWrapper, instead of just using 4655 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>] 4656 2. Implemented optional authenticator field of KerberosWrapper. 4657 4658 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req, 4659 and authenticator structs; see crypto/krb5/. 4660 4661 Generalized Kerberos calls to support multiple Kerberos libraries. 4662 [Vern Staats <staatsvr@asc.hpc.mil>, 4663 Jeffrey Altman <jaltman@columbia.edu> 4664 via Richard Levitte] 4665 4666 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it 4667 already does with RSA. testdsa.h now has 'priv_key/pub_key' 4668 values for each of the key sizes rather than having just 4669 parameters (and 'speed' generating keys each time). 4670 [Geoff Thorpe] 4671 4672 *) Speed up EVP routines. 4673 Before: 4674encrypt 4675type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes 4676des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k 4677des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k 4678des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k 4679decrypt 4680des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k 4681des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k 4682des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k 4683 After: 4684encrypt 4685des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k 4686decrypt 4687des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k 4688 [Ben Laurie] 4689 4690 *) Added the OS2-EMX target. 4691 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte] 4692 4693 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions 4694 to support NCONF routines in extension code. New function CONF_set_nconf() 4695 to allow functions which take an NCONF to also handle the old LHASH 4696 structure: this means that the old CONF compatible routines can be 4697 retained (in particular wrt extensions) without having to duplicate the 4698 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack. 4699 [Steve Henson] 4700 4701 *) Enhance the general user interface with mechanisms for inner control 4702 and with possibilities to have yes/no kind of prompts. 4703 [Richard Levitte] 4704 4705 *) Change all calls to low level digest routines in the library and 4706 applications to use EVP. Add missing calls to HMAC_cleanup() and 4707 don't assume HMAC_CTX can be copied using memcpy(). 4708 [Verdon Walker <VWalker@novell.com>, Steve Henson] 4709 4710 *) Add the possibility to control engines through control names but with 4711 arbitrary arguments instead of just a string. 4712 Change the key loaders to take a UI_METHOD instead of a callback 4713 function pointer. NOTE: this breaks binary compatibility with earlier 4714 versions of OpenSSL [engine]. 4715 Adapt the nCipher code for these new conditions and add a card insertion 4716 callback. 4717 [Richard Levitte] 4718 4719 *) Enhance the general user interface with mechanisms to better support 4720 dialog box interfaces, application-defined prompts, the possibility 4721 to use defaults (for example default passwords from somewhere else) 4722 and interrupts/cancellations. 4723 [Richard Levitte] 4724 4725 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name 4726 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility. 4727 [Steve Henson] 4728 4729 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also 4730 tidy up some unnecessarily weird code in 'sk_new()'). 4731 [Geoff, reported by Diego Tartara <dtartara@novamens.com>] 4732 4733 *) Change the key loading routines for ENGINEs to use the same kind 4734 callback (pem_password_cb) as all other routines that need this 4735 kind of callback. 4736 [Richard Levitte] 4737 4738 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with 4739 256 bit (=32 byte) keys. Of course seeding with more entropy bytes 4740 than this minimum value is recommended. 4741 [Lutz Jaenicke] 4742 4743 *) New random seeder for OpenVMS, using the system process statistics 4744 that are easily reachable. 4745 [Richard Levitte] 4746 4747 *) Windows apparently can't transparently handle global 4748 variables defined in DLLs. Initialisations such as: 4749 4750 const ASN1_ITEM *it = &ASN1_INTEGER_it; 4751 4752 wont compile. This is used by the any applications that need to 4753 declare their own ASN1 modules. This was fixed by adding the option 4754 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly 4755 needed for static libraries under Win32. 4756 [Steve Henson] 4757 4758 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle 4759 setting of purpose and trust fields. New X509_STORE trust and 4760 purpose functions and tidy up setting in other SSL functions. 4761 [Steve Henson] 4762 4763 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE 4764 structure. These are inherited by X509_STORE_CTX when it is 4765 initialised. This allows various defaults to be set in the 4766 X509_STORE structure (such as flags for CRL checking and custom 4767 purpose or trust settings) for functions which only use X509_STORE_CTX 4768 internally such as S/MIME. 4769 4770 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and 4771 trust settings if they are not set in X509_STORE. This allows X509_STORE 4772 purposes and trust (in S/MIME for example) to override any set by default. 4773 4774 Add command line options for CRL checking to smime, s_client and s_server 4775 applications. 4776 [Steve Henson] 4777 4778 *) Initial CRL based revocation checking. If the CRL checking flag(s) 4779 are set then the CRL is looked up in the X509_STORE structure and 4780 its validity and signature checked, then if the certificate is found 4781 in the CRL the verify fails with a revoked error. 4782 4783 Various new CRL related callbacks added to X509_STORE_CTX structure. 4784 4785 Command line options added to 'verify' application to support this. 4786 4787 This needs some additional work, such as being able to handle multiple 4788 CRLs with different times, extension based lookup (rather than just 4789 by subject name) and ultimately more complete V2 CRL extension 4790 handling. 4791 [Steve Henson] 4792 4793 *) Add a general user interface API (crypto/ui/). This is designed 4794 to replace things like des_read_password and friends (backward 4795 compatibility functions using this new API are provided). 4796 The purpose is to remove prompting functions from the DES code 4797 section as well as provide for prompting through dialog boxes in 4798 a window system and the like. 4799 [Richard Levitte] 4800 4801 *) Add "ex_data" support to ENGINE so implementations can add state at a 4802 per-structure level rather than having to store it globally. 4803 [Geoff] 4804 4805 *) Make it possible for ENGINE structures to be copied when retrieved by 4806 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY. 4807 This causes the "original" ENGINE structure to act like a template, 4808 analogous to the RSA vs. RSA_METHOD type of separation. Because of this 4809 operational state can be localised to each ENGINE structure, despite the 4810 fact they all share the same "methods". New ENGINE structures returned in 4811 this case have no functional references and the return value is the single 4812 structural reference. This matches the single structural reference returned 4813 by ENGINE_by_id() normally, when it is incremented on the pre-existing 4814 ENGINE structure. 4815 [Geoff] 4816 4817 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this 4818 needs to match any other type at all we need to manually clear the 4819 tag cache. 4820 [Steve Henson] 4821 4822 *) Changes to the "openssl engine" utility to include; 4823 - verbosity levels ('-v', '-vv', and '-vvv') that provide information 4824 about an ENGINE's available control commands. 4825 - executing control commands from command line arguments using the 4826 '-pre' and '-post' switches. '-post' is only used if '-t' is 4827 specified and the ENGINE is successfully initialised. The syntax for 4828 the individual commands are colon-separated, for example; 4829 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so 4830 [Geoff] 4831 4832 *) New dynamic control command support for ENGINEs. ENGINEs can now 4833 declare their own commands (numbers), names (strings), descriptions, 4834 and input types for run-time discovery by calling applications. A 4835 subset of these commands are implicitly classed as "executable" 4836 depending on their input type, and only these can be invoked through 4837 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this 4838 can be based on user input, config files, etc). The distinction is 4839 that "executable" commands cannot return anything other than a boolean 4840 result and can only support numeric or string input, whereas some 4841 discoverable commands may only be for direct use through 4842 ENGINE_ctrl(), eg. supporting the exchange of binary data, function 4843 pointers, or other custom uses. The "executable" commands are to 4844 support parameterisations of ENGINE behaviour that can be 4845 unambiguously defined by ENGINEs and used consistently across any 4846 OpenSSL-based application. Commands have been added to all the 4847 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow 4848 control over shared-library paths without source code alterations. 4849 [Geoff] 4850 4851 *) Changed all ENGINE implementations to dynamically allocate their 4852 ENGINEs rather than declaring them statically. Apart from this being 4853 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction, 4854 this also allows the implementations to compile without using the 4855 internal engine_int.h header. 4856 [Geoff] 4857 4858 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a 4859 'const' value. Any code that should be able to modify a RAND_METHOD 4860 should already have non-const pointers to it (ie. they should only 4861 modify their own ones). 4862 [Geoff] 4863 4864 *) Made a variety of little tweaks to the ENGINE code. 4865 - "atalla" and "ubsec" string definitions were moved from header files 4866 to C code. "nuron" string definitions were placed in variables 4867 rather than hard-coded - allowing parameterisation of these values 4868 later on via ctrl() commands. 4869 - Removed unused "#if 0"'d code. 4870 - Fixed engine list iteration code so it uses ENGINE_free() to release 4871 structural references. 4872 - Constified the RAND_METHOD element of ENGINE structures. 4873 - Constified various get/set functions as appropriate and added 4874 missing functions (including a catch-all ENGINE_cpy that duplicates 4875 all ENGINE values onto a new ENGINE except reference counts/state). 4876 - Removed NULL parameter checks in get/set functions. Setting a method 4877 or function to NULL is a way of cancelling out a previously set 4878 value. Passing a NULL ENGINE parameter is just plain stupid anyway 4879 and doesn't justify the extra error symbols and code. 4880 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for 4881 flags from engine_int.h to engine.h. 4882 - Changed prototypes for ENGINE handler functions (init(), finish(), 4883 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter. 4884 [Geoff] 4885 4886 *) Implement binary inversion algorithm for BN_mod_inverse in addition 4887 to the algorithm using long division. The binary algorithm can be 4888 used only if the modulus is odd. On 32-bit systems, it is faster 4889 only for relatively small moduli (roughly 20-30% for 128-bit moduli, 4890 roughly 5-15% for 256-bit moduli), so we use it only for moduli 4891 up to 450 bits. In 64-bit environments, the binary algorithm 4892 appears to be advantageous for much longer moduli; here we use it 4893 for moduli up to 2048 bits. 4894 [Bodo Moeller] 4895 4896 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code 4897 could not support the combine flag in choice fields. 4898 [Steve Henson] 4899 4900 *) Add a 'copy_extensions' option to the 'ca' utility. This copies 4901 extensions from a certificate request to the certificate. 4902 [Steve Henson] 4903 4904 *) Allow multiple 'certopt' and 'nameopt' options to be separated 4905 by commas. Add 'namopt' and 'certopt' options to the 'ca' config 4906 file: this allows the display of the certificate about to be 4907 signed to be customised, to allow certain fields to be included 4908 or excluded and extension details. The old system didn't display 4909 multicharacter strings properly, omitted fields not in the policy 4910 and couldn't display additional details such as extensions. 4911 [Steve Henson] 4912 4913 *) Function EC_POINTs_mul for multiple scalar multiplication 4914 of an arbitrary number of elliptic curve points 4915 \sum scalars[i]*points[i], 4916 optionally including the generator defined for the EC_GROUP: 4917 scalar*generator + \sum scalars[i]*points[i]. 4918 4919 EC_POINT_mul is a simple wrapper function for the typical case 4920 that the point list has just one item (besides the optional 4921 generator). 4922 [Bodo Moeller] 4923 4924 *) First EC_METHODs for curves over GF(p): 4925 4926 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr 4927 operations and provides various method functions that can also 4928 operate with faster implementations of modular arithmetic. 4929 4930 EC_GFp_mont_method() reuses most functions that are part of 4931 EC_GFp_simple_method, but uses Montgomery arithmetic. 4932 4933 [Bodo Moeller; point addition and point doubling 4934 implementation directly derived from source code provided by 4935 Lenka Fibikova <fibikova@exp-math.uni-essen.de>] 4936 4937 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h, 4938 crypto/ec/ec_lib.c): 4939 4940 Curves are EC_GROUP objects (with an optional group generator) 4941 based on EC_METHODs that are built into the library. 4942 4943 Points are EC_POINT objects based on EC_GROUP objects. 4944 4945 Most of the framework would be able to handle curves over arbitrary 4946 finite fields, but as there are no obvious types for fields other 4947 than GF(p), some functions are limited to that for now. 4948 [Bodo Moeller] 4949 4950 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires 4951 that the file contains a complete HTTP response. 4952 [Richard Levitte] 4953 4954 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl 4955 change the def and num file printf format specifier from "%-40sXXX" 4956 to "%-39s XXX". The latter will always guarantee a space after the 4957 field while the former will cause them to run together if the field 4958 is 40 of more characters long. 4959 [Steve Henson] 4960 4961 *) Constify the cipher and digest 'method' functions and structures 4962 and modify related functions to take constant EVP_MD and EVP_CIPHER 4963 pointers. 4964 [Steve Henson] 4965 4966 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them 4967 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32. 4968 [Bodo Moeller] 4969 4970 *) Modify EVP_Digest*() routines so they now return values. Although the 4971 internal software routines can never fail additional hardware versions 4972 might. 4973 [Steve Henson] 4974 4975 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts: 4976 4977 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7 4978 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32. 4979 4980 ASN1 error codes 4981 ERR_R_NESTED_ASN1_ERROR 4982 ... 4983 ERR_R_MISSING_ASN1_EOS 4984 were 4 .. 9, conflicting with 4985 ERR_LIB_RSA (= ERR_R_RSA_LIB) 4986 ... 4987 ERR_LIB_PEM (= ERR_R_PEM_LIB). 4988 They are now 58 .. 63 (i.e., just below ERR_R_FATAL). 4989 4990 Add new error code 'ERR_R_INTERNAL_ERROR'. 4991 [Bodo Moeller] 4992 4993 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock 4994 suffices. 4995 [Bodo Moeller] 4996 4997 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This 4998 sets the subject name for a new request or supersedes the 4999 subject name in a given request. Formats that can be parsed are 5000 'CN=Some Name, OU=myOU, C=IT' 5001 and 5002 'CN=Some Name/OU=myOU/C=IT'. 5003 5004 Add options '-batch' and '-verbose' to 'openssl req'. 5005 [Massimiliano Pala <madwolf@hackmasters.net>] 5006 5007 *) Introduce the possibility to access global variables through 5008 functions on platform were that's the best way to handle exporting 5009 global variables in shared libraries. To enable this functionality, 5010 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro 5011 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter 5012 is normally done by Configure or something similar). 5013 5014 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL 5015 in the source file (foo.c) like this: 5016 5017 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1; 5018 OPENSSL_IMPLEMENT_GLOBAL(double,bar); 5019 5020 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL 5021 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this: 5022 5023 OPENSSL_DECLARE_GLOBAL(int,foo); 5024 #define foo OPENSSL_GLOBAL_REF(foo) 5025 OPENSSL_DECLARE_GLOBAL(double,bar); 5026 #define bar OPENSSL_GLOBAL_REF(bar) 5027 5028 The #defines are very important, and therefore so is including the 5029 header file everywhere where the defined globals are used. 5030 5031 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition 5032 of ASN.1 items, but that structure is a bit different. 5033 5034 The largest change is in util/mkdef.pl which has been enhanced with 5035 better and easier to understand logic to choose which symbols should 5036 go into the Windows .def files as well as a number of fixes and code 5037 cleanup (among others, algorithm keywords are now sorted 5038 lexicographically to avoid constant rewrites). 5039 [Richard Levitte] 5040 5041 *) In BN_div() keep a copy of the sign of 'num' before writing the 5042 result to 'rm' because if rm==num the value will be overwritten 5043 and produce the wrong result if 'num' is negative: this caused 5044 problems with BN_mod() and BN_nnmod(). 5045 [Steve Henson] 5046 5047 *) Function OCSP_request_verify(). This checks the signature on an 5048 OCSP request and verifies the signer certificate. The signer 5049 certificate is just checked for a generic purpose and OCSP request 5050 trust settings. 5051 [Steve Henson] 5052 5053 *) Add OCSP_check_validity() function to check the validity of OCSP 5054 responses. OCSP responses are prepared in real time and may only 5055 be a few seconds old. Simply checking that the current time lies 5056 between thisUpdate and nextUpdate max reject otherwise valid responses 5057 caused by either OCSP responder or client clock inaccuracy. Instead 5058 we allow thisUpdate and nextUpdate to fall within a certain period of 5059 the current time. The age of the response can also optionally be 5060 checked. Two new options -validity_period and -status_age added to 5061 ocsp utility. 5062 [Steve Henson] 5063 5064 *) If signature or public key algorithm is unrecognized print out its 5065 OID rather that just UNKNOWN. 5066 [Steve Henson] 5067 5068 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and 5069 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate 5070 ID to be generated from the issuer certificate alone which can then be 5071 passed to OCSP_id_issuer_cmp(). 5072 [Steve Henson] 5073 5074 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new 5075 ASN1 modules to export functions returning ASN1_ITEM pointers 5076 instead of the ASN1_ITEM structures themselves. This adds several 5077 new macros which allow the underlying ASN1 function/structure to 5078 be accessed transparently. As a result code should not use ASN1_ITEM 5079 references directly (such as &X509_it) but instead use the relevant 5080 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow 5081 use of the new ASN1 code on platforms where exporting structures 5082 is problematical (for example in shared libraries) but exporting 5083 functions returning pointers to structures is not. 5084 [Steve Henson] 5085 5086 *) Add support for overriding the generation of SSL/TLS session IDs. 5087 These callbacks can be registered either in an SSL_CTX or per SSL. 5088 The purpose of this is to allow applications to control, if they wish, 5089 the arbitrary values chosen for use as session IDs, particularly as it 5090 can be useful for session caching in multiple-server environments. A 5091 command-line switch for testing this (and any client code that wishes 5092 to use such a feature) has been added to "s_server". 5093 [Geoff Thorpe, Lutz Jaenicke] 5094 5095 *) Modify mkdef.pl to recognise and parse preprocessor conditionals 5096 of the form '#if defined(...) || defined(...) || ...' and 5097 '#if !defined(...) && !defined(...) && ...'. This also avoids 5098 the growing number of special cases it was previously handling. 5099 [Richard Levitte] 5100 5101 *) Make all configuration macros available for application by making 5102 sure they are available in opensslconf.h, by giving them names starting 5103 with "OPENSSL_" to avoid conflicts with other packages and by making 5104 sure e_os2.h will cover all platform-specific cases together with 5105 opensslconf.h. 5106 Additionally, it is now possible to define configuration/platform- 5107 specific names (called "system identities"). In the C code, these 5108 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another 5109 macro with the name beginning with "OPENSSL_SYS_", which is determined 5110 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on 5111 what is available. 5112 [Richard Levitte] 5113 5114 *) New option -set_serial to 'req' and 'x509' this allows the serial 5115 number to use to be specified on the command line. Previously self 5116 signed certificates were hard coded with serial number 0 and the 5117 CA options of 'x509' had to use a serial number in a file which was 5118 auto incremented. 5119 [Steve Henson] 5120 5121 *) New options to 'ca' utility to support V2 CRL entry extensions. 5122 Currently CRL reason, invalidity date and hold instruction are 5123 supported. Add new CRL extensions to V3 code and some new objects. 5124 [Steve Henson] 5125 5126 *) New function EVP_CIPHER_CTX_set_padding() this is used to 5127 disable standard block padding (aka PKCS#5 padding) in the EVP 5128 API, which was previously mandatory. This means that the data is 5129 not padded in any way and so the total length much be a multiple 5130 of the block size, otherwise an error occurs. 5131 [Steve Henson] 5132 5133 *) Initial (incomplete) OCSP SSL support. 5134 [Steve Henson] 5135 5136 *) New function OCSP_parse_url(). This splits up a URL into its host, 5137 port and path components: primarily to parse OCSP URLs. New -url 5138 option to ocsp utility. 5139 [Steve Henson] 5140 5141 *) New nonce behavior. The return value of OCSP_check_nonce() now 5142 reflects the various checks performed. Applications can decide 5143 whether to tolerate certain situations such as an absent nonce 5144 in a response when one was present in a request: the ocsp application 5145 just prints out a warning. New function OCSP_add1_basic_nonce() 5146 this is to allow responders to include a nonce in a response even if 5147 the request is nonce-less. 5148 [Steve Henson] 5149 5150 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are 5151 skipped when using openssl x509 multiple times on a single input file, 5152 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs". 5153 [Bodo Moeller] 5154 5155 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string() 5156 set string type: to handle setting ASN1_TIME structures. Fix ca 5157 utility to correctly initialize revocation date of CRLs. 5158 [Steve Henson] 5159 5160 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override 5161 the clients preferred ciphersuites and rather use its own preferences. 5162 Should help to work around M$ SGC (Server Gated Cryptography) bug in 5163 Internet Explorer by ensuring unchanged hash method during stepup. 5164 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.) 5165 [Lutz Jaenicke] 5166 5167 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael 5168 to aes and add a new 'exist' option to print out symbols that don't 5169 appear to exist. 5170 [Steve Henson] 5171 5172 *) Additional options to ocsp utility to allow flags to be set and 5173 additional certificates supplied. 5174 [Steve Henson] 5175 5176 *) Add the option -VAfile to 'openssl ocsp', so the user can give the 5177 OCSP client a number of certificate to only verify the response 5178 signature against. 5179 [Richard Levitte] 5180 5181 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to 5182 handle the new API. Currently only ECB, CBC modes supported. Add new 5183 AES OIDs. 5184 5185 Add TLS AES ciphersuites as described in RFC3268, "Advanced 5186 Encryption Standard (AES) Ciphersuites for Transport Layer 5187 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were 5188 not enabled by default and were not part of the "ALL" ciphersuite 5189 alias because they were not yet official; they could be 5190 explicitly requested by specifying the "AESdraft" ciphersuite 5191 group alias. In the final release of OpenSSL 0.9.7, the group 5192 alias is called "AES" and is part of "ALL".) 5193 [Ben Laurie, Steve Henson, Bodo Moeller] 5194 5195 *) New function OCSP_copy_nonce() to copy nonce value (if present) from 5196 request to response. 5197 [Steve Henson] 5198 5199 *) Functions for OCSP responders. OCSP_request_onereq_count(), 5200 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info() 5201 extract information from a certificate request. OCSP_response_create() 5202 creates a response and optionally adds a basic response structure. 5203 OCSP_basic_add1_status() adds a complete single response to a basic 5204 response and returns the OCSP_SINGLERESP structure just added (to allow 5205 extensions to be included for example). OCSP_basic_add1_cert() adds a 5206 certificate to a basic response and OCSP_basic_sign() signs a basic 5207 response with various flags. New helper functions ASN1_TIME_check() 5208 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime() 5209 (converts ASN1_TIME to GeneralizedTime). 5210 [Steve Henson] 5211 5212 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}() 5213 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key 5214 structure from a certificate. X509_pubkey_digest() digests the public_key 5215 contents: this is used in various key identifiers. 5216 [Steve Henson] 5217 5218 *) Make sk_sort() tolerate a NULL argument. 5219 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>] 5220 5221 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates 5222 passed by the function are trusted implicitly. If any of them signed the 5223 response then it is assumed to be valid and is not verified. 5224 [Steve Henson] 5225 5226 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT 5227 to data. This was previously part of the PKCS7 ASN1 code. This 5228 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures. 5229 [Steve Henson, reported by Kenneth R. Robinette 5230 <support@securenetterm.com>] 5231 5232 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1 5233 routines: without these tracing memory leaks is very painful. 5234 Fix leaks in PKCS12 and PKCS7 routines. 5235 [Steve Henson] 5236 5237 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new(). 5238 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which 5239 effectively meant GeneralizedTime would never be used. Now it 5240 is initialised to -1 but X509_time_adj() now has to check the value 5241 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or 5242 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime. 5243 [Steve Henson, reported by Kenneth R. Robinette 5244 <support@securenetterm.com>] 5245 5246 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously 5247 result in a zero length in the ASN1_INTEGER structure which was 5248 not consistent with the structure when d2i_ASN1_INTEGER() was used 5249 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER() 5250 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER() 5251 where it did not print out a minus for negative ASN1_INTEGER. 5252 [Steve Henson] 5253 5254 *) Add summary printout to ocsp utility. The various functions which 5255 convert status values to strings have been renamed to: 5256 OCSP_response_status_str(), OCSP_cert_status_str() and 5257 OCSP_crl_reason_str() and are no longer static. New options 5258 to verify nonce values and to disable verification. OCSP response 5259 printout format cleaned up. 5260 [Steve Henson] 5261 5262 *) Add additional OCSP certificate checks. These are those specified 5263 in RFC2560. This consists of two separate checks: the CA of the 5264 certificate being checked must either be the OCSP signer certificate 5265 or the issuer of the OCSP signer certificate. In the latter case the 5266 OCSP signer certificate must contain the OCSP signing extended key 5267 usage. This check is performed by attempting to match the OCSP 5268 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash 5269 in the OCSP_CERTID structures of the response. 5270 [Steve Henson] 5271 5272 *) Initial OCSP certificate verification added to OCSP_basic_verify() 5273 and related routines. This uses the standard OpenSSL certificate 5274 verify routines to perform initial checks (just CA validity) and 5275 to obtain the certificate chain. Then additional checks will be 5276 performed on the chain. Currently the root CA is checked to see 5277 if it is explicitly trusted for OCSP signing. This is used to set 5278 a root CA as a global signing root: that is any certificate that 5279 chains to that CA is an acceptable OCSP signing certificate. 5280 [Steve Henson] 5281 5282 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3 5283 extensions from a separate configuration file. 5284 As when reading extensions from the main configuration file, 5285 the '-extensions ...' option may be used for specifying the 5286 section to use. 5287 [Massimiliano Pala <madwolf@comune.modena.it>] 5288 5289 *) New OCSP utility. Allows OCSP requests to be generated or 5290 read. The request can be sent to a responder and the output 5291 parsed, outputed or printed in text form. Not complete yet: 5292 still needs to check the OCSP response validity. 5293 [Steve Henson] 5294 5295 *) New subcommands for 'openssl ca': 5296 'openssl ca -status <serial>' prints the status of the cert with 5297 the given serial number (according to the index file). 5298 'openssl ca -updatedb' updates the expiry status of certificates 5299 in the index file. 5300 [Massimiliano Pala <madwolf@comune.modena.it>] 5301 5302 *) New '-newreq-nodes' command option to CA.pl. This is like 5303 '-newreq', but calls 'openssl req' with the '-nodes' option 5304 so that the resulting key is not encrypted. 5305 [Damien Miller <djm@mindrot.org>] 5306 5307 *) New configuration for the GNU Hurd. 5308 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte] 5309 5310 *) Initial code to implement OCSP basic response verify. This 5311 is currently incomplete. Currently just finds the signer's 5312 certificate and verifies the signature on the response. 5313 [Steve Henson] 5314 5315 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in 5316 value of OPENSSLDIR. This is available via the new '-d' option 5317 to 'openssl version', and is also included in 'openssl version -a'. 5318 [Bodo Moeller] 5319 5320 *) Allowing defining memory allocation callbacks that will be given 5321 file name and line number information in additional arguments 5322 (a const char* and an int). The basic functionality remains, as 5323 well as the original possibility to just replace malloc(), 5324 realloc() and free() by functions that do not know about these 5325 additional arguments. To register and find out the current 5326 settings for extended allocation functions, the following 5327 functions are provided: 5328 5329 CRYPTO_set_mem_ex_functions 5330 CRYPTO_set_locked_mem_ex_functions 5331 CRYPTO_get_mem_ex_functions 5332 CRYPTO_get_locked_mem_ex_functions 5333 5334 These work the same way as CRYPTO_set_mem_functions and friends. 5335 CRYPTO_get_[locked_]mem_functions now writes 0 where such an 5336 extended allocation function is enabled. 5337 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where 5338 a conventional allocation function is enabled. 5339 [Richard Levitte, Bodo Moeller] 5340 5341 *) Finish off removing the remaining LHASH function pointer casts. 5342 There should no longer be any prototype-casting required when using 5343 the LHASH abstraction, and any casts that remain are "bugs". See 5344 the callback types and macros at the head of lhash.h for details 5345 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example). 5346 [Geoff Thorpe] 5347 5348 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant. 5349 If /dev/[u]random devices are not available or do not return enough 5350 entropy, EGD style sockets (served by EGD or PRNGD) will automatically 5351 be queried. 5352 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and 5353 /etc/entropy will be queried once each in this sequence, quering stops 5354 when enough entropy was collected without querying more sockets. 5355 [Lutz Jaenicke] 5356 5357 *) Change the Unix RAND_poll() variant to be able to poll several 5358 random devices, as specified by DEVRANDOM, until a sufficient amount 5359 of data has been collected. We spend at most 10 ms on each file 5360 (select timeout) and read in non-blocking mode. DEVRANDOM now 5361 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom" 5362 (previously it was just the string "/dev/urandom"), so on typical 5363 platforms the 10 ms delay will never occur. 5364 Also separate out the Unix variant to its own file, rand_unix.c. 5365 For VMS, there's a currently-empty rand_vms.c. 5366 [Richard Levitte] 5367 5368 *) Move OCSP client related routines to ocsp_cl.c. These 5369 provide utility functions which an application needing 5370 to issue a request to an OCSP responder and analyse the 5371 response will typically need: as opposed to those which an 5372 OCSP responder itself would need which will be added later. 5373 5374 OCSP_request_sign() signs an OCSP request with an API similar 5375 to PKCS7_sign(). OCSP_response_status() returns status of OCSP 5376 response. OCSP_response_get1_basic() extracts basic response 5377 from response. OCSP_resp_find_status(): finds and extracts status 5378 information from an OCSP_CERTID structure (which will be created 5379 when the request structure is built). These are built from lower 5380 level functions which work on OCSP_SINGLERESP structures but 5381 wont normally be used unless the application wishes to examine 5382 extensions in the OCSP response for example. 5383 5384 Replace nonce routines with a pair of functions. 5385 OCSP_request_add1_nonce() adds a nonce value and optionally 5386 generates a random value. OCSP_check_nonce() checks the 5387 validity of the nonce in an OCSP response. 5388 [Steve Henson] 5389 5390 *) Change function OCSP_request_add() to OCSP_request_add0_id(). 5391 This doesn't copy the supplied OCSP_CERTID and avoids the 5392 need to free up the newly created id. Change return type 5393 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure. 5394 This can then be used to add extensions to the request. 5395 Deleted OCSP_request_new(), since most of its functionality 5396 is now in OCSP_REQUEST_new() (and the case insensitive name 5397 clash) apart from the ability to set the request name which 5398 will be added elsewhere. 5399 [Steve Henson] 5400 5401 *) Update OCSP API. Remove obsolete extensions argument from 5402 various functions. Extensions are now handled using the new 5403 OCSP extension code. New simple OCSP HTTP function which 5404 can be used to send requests and parse the response. 5405 [Steve Henson] 5406 5407 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new 5408 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN 5409 uses the special reorder version of SET OF to sort the attributes 5410 and reorder them to match the encoded order. This resolves a long 5411 standing problem: a verify on a PKCS7 structure just after signing 5412 it used to fail because the attribute order did not match the 5413 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes: 5414 it uses the received order. This is necessary to tolerate some broken 5415 software that does not order SET OF. This is handled by encoding 5416 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class) 5417 to produce the required SET OF. 5418 [Steve Henson] 5419 5420 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and 5421 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header 5422 files to get correct declarations of the ASN.1 item variables. 5423 [Richard Levitte] 5424 5425 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many 5426 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs: 5427 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was 5428 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i(). 5429 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant 5430 ASN1_ITEM and no wrapper functions. 5431 [Steve Henson] 5432 5433 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These 5434 replace the old function pointer based I/O routines. Change most of 5435 the *_d2i_bio() and *_d2i_fp() functions to use these. 5436 [Steve Henson] 5437 5438 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor 5439 lines, recognice more "algorithms" that can be deselected, and make 5440 it complain about algorithm deselection that isn't recognised. 5441 [Richard Levitte] 5442 5443 *) New ASN1 functions to handle dup, sign, verify, digest, pack and 5444 unpack operations in terms of ASN1_ITEM. Modify existing wrappers 5445 to use new functions. Add NO_ASN1_OLD which can be set to remove 5446 some old style ASN1 functions: this can be used to determine if old 5447 code will still work when these eventually go away. 5448 [Steve Henson] 5449 5450 *) New extension functions for OCSP structures, these follow the 5451 same conventions as certificates and CRLs. 5452 [Steve Henson] 5453 5454 *) New function X509V3_add1_i2d(). This automatically encodes and 5455 adds an extension. Its behaviour can be customised with various 5456 flags to append, replace or delete. Various wrappers added for 5457 certifcates and CRLs. 5458 [Steve Henson] 5459 5460 *) Fix to avoid calling the underlying ASN1 print routine when 5461 an extension cannot be parsed. Correct a typo in the 5462 OCSP_SERVICELOC extension. Tidy up print OCSP format. 5463 [Steve Henson] 5464 5465 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate 5466 entries for variables. 5467 [Steve Henson] 5468 5469 *) Add functionality to apps/openssl.c for detecting locking 5470 problems: As the program is single-threaded, all we have 5471 to do is register a locking callback using an array for 5472 storing which locks are currently held by the program. 5473 [Bodo Moeller] 5474 5475 *) Use a lock around the call to CRYPTO_get_ex_new_index() in 5476 SSL_get_ex_data_X509_STORE_idx(), which is used in 5477 ssl_verify_cert_chain() and thus can be called at any time 5478 during TLS/SSL handshakes so that thread-safety is essential. 5479 Unfortunately, the ex_data design is not at all suited 5480 for multi-threaded use, so it probably should be abolished. 5481 [Bodo Moeller] 5482 5483 *) Added Broadcom "ubsec" ENGINE to OpenSSL. 5484 [Broadcom, tweaked and integrated by Geoff Thorpe] 5485 5486 *) Move common extension printing code to new function 5487 X509V3_print_extensions(). Reorganise OCSP print routines and 5488 implement some needed OCSP ASN1 functions. Add OCSP extensions. 5489 [Steve Henson] 5490 5491 *) New function X509_signature_print() to remove duplication in some 5492 print routines. 5493 [Steve Henson] 5494 5495 *) Add a special meaning when SET OF and SEQUENCE OF flags are both 5496 set (this was treated exactly the same as SET OF previously). This 5497 is used to reorder the STACK representing the structure to match the 5498 encoding. This will be used to get round a problem where a PKCS7 5499 structure which was signed could not be verified because the STACK 5500 order did not reflect the encoded order. 5501 [Steve Henson] 5502 5503 *) Reimplement the OCSP ASN1 module using the new code. 5504 [Steve Henson] 5505 5506 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure 5507 for its ASN1 operations. The old style function pointers still exist 5508 for now but they will eventually go away. 5509 [Steve Henson] 5510 5511 *) Merge in replacement ASN1 code from the ASN1 branch. This almost 5512 completely replaces the old ASN1 functionality with a table driven 5513 encoder and decoder which interprets an ASN1_ITEM structure describing 5514 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is 5515 largely maintained. Almost all of the old asn1_mac.h macro based ASN1 5516 has also been converted to the new form. 5517 [Steve Henson] 5518 5519 *) Change BN_mod_exp_recp so that negative moduli are tolerated 5520 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set 5521 so that BN_mod_exp_mont and BN_mod_exp_mont_word work 5522 for negative moduli. 5523 [Bodo Moeller] 5524 5525 *) Fix BN_uadd and BN_usub: Always return non-negative results instead 5526 of not touching the result's sign bit. 5527 [Bodo Moeller] 5528 5529 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be 5530 set. 5531 [Bodo Moeller] 5532 5533 *) Changed the LHASH code to use prototypes for callbacks, and created 5534 macros to declare and implement thin (optionally static) functions 5535 that provide type-safety and avoid function pointer casting for the 5536 type-specific callbacks. 5537 [Geoff Thorpe] 5538 5539 *) Added Kerberos Cipher Suites to be used with TLS, as written in 5540 RFC 2712. 5541 [Veers Staats <staatsvr@asc.hpc.mil>, 5542 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte] 5543 5544 *) Reformat the FAQ so the different questions and answers can be divided 5545 in sections depending on the subject. 5546 [Richard Levitte] 5547 5548 *) Have the zlib compression code load ZLIB.DLL dynamically under 5549 Windows. 5550 [Richard Levitte] 5551 5552 *) New function BN_mod_sqrt for computing square roots modulo a prime 5553 (using the probabilistic Tonelli-Shanks algorithm unless 5554 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can 5555 be handled deterministically). 5556 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller] 5557 5558 *) Make BN_mod_inverse faster by explicitly handling small quotients 5559 in the Euclid loop. (Speed gain about 20% for small moduli [256 or 5560 512 bits], about 30% for larger ones [1024 or 2048 bits].) 5561 [Bodo Moeller] 5562 5563 *) New function BN_kronecker. 5564 [Bodo Moeller] 5565 5566 *) Fix BN_gcd so that it works on negative inputs; the result is 5567 positive unless both parameters are zero. 5568 Previously something reasonably close to an infinite loop was 5569 possible because numbers could be growing instead of shrinking 5570 in the implementation of Euclid's algorithm. 5571 [Bodo Moeller] 5572 5573 *) Fix BN_is_word() and BN_is_one() macros to take into account the 5574 sign of the number in question. 5575 5576 Fix BN_is_word(a,w) to work correctly for w == 0. 5577 5578 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w) 5579 because its test if the absolute value of 'a' equals 'w'. 5580 Note that BN_abs_is_word does *not* handle w == 0 reliably; 5581 it exists mostly for use in the implementations of BN_is_zero(), 5582 BN_is_one(), and BN_is_word(). 5583 [Bodo Moeller] 5584 5585 *) New function BN_swap. 5586 [Bodo Moeller] 5587 5588 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that 5589 the exponentiation functions are more likely to produce reasonable 5590 results on negative inputs. 5591 [Bodo Moeller] 5592 5593 *) Change BN_mod_mul so that the result is always non-negative. 5594 Previously, it could be negative if one of the factors was negative; 5595 I don't think anyone really wanted that behaviour. 5596 [Bodo Moeller] 5597 5598 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c 5599 (except for exponentiation, which stays in crypto/bn/bn_exp.c, 5600 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c) 5601 and add new functions: 5602 5603 BN_nnmod 5604 BN_mod_sqr 5605 BN_mod_add 5606 BN_mod_add_quick 5607 BN_mod_sub 5608 BN_mod_sub_quick 5609 BN_mod_lshift1 5610 BN_mod_lshift1_quick 5611 BN_mod_lshift 5612 BN_mod_lshift_quick 5613 5614 These functions always generate non-negative results. 5615 5616 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r 5617 such that |m| < r < 0, BN_nnmod will output rem + |m| instead). 5618 5619 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as 5620 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b] 5621 be reduced modulo m. 5622 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller] 5623 5624#if 0 5625 The following entry accidentily appeared in the CHANGES file 5626 distributed with OpenSSL 0.9.7. The modifications described in 5627 it do *not* apply to OpenSSL 0.9.7. 5628 5629 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 5630 was actually never needed) and in BN_mul(). The removal in BN_mul() 5631 required a small change in bn_mul_part_recursive() and the addition 5632 of the functions bn_cmp_part_words(), bn_sub_part_words() and 5633 bn_add_part_words(), which do the same thing as bn_cmp_words(), 5634 bn_sub_words() and bn_add_words() except they take arrays with 5635 differing sizes. 5636 [Richard Levitte] 5637#endif 5638 5639 *) In 'openssl passwd', verify passwords read from the terminal 5640 unless the '-salt' option is used (which usually means that 5641 verification would just waste user's time since the resulting 5642 hash is going to be compared with some given password hash) 5643 or the new '-noverify' option is used. 5644 5645 This is an incompatible change, but it does not affect 5646 non-interactive use of 'openssl passwd' (passwords on the command 5647 line, '-stdin' option, '-in ...' option) and thus should not 5648 cause any problems. 5649 [Bodo Moeller] 5650 5651 *) Remove all references to RSAref, since there's no more need for it. 5652 [Richard Levitte] 5653 5654 *) Make DSO load along a path given through an environment variable 5655 (SHLIB_PATH) with shl_load(). 5656 [Richard Levitte] 5657 5658 *) Constify the ENGINE code as a result of BIGNUM constification. 5659 Also constify the RSA code and most things related to it. In a 5660 few places, most notable in the depth of the ASN.1 code, ugly 5661 casts back to non-const were required (to be solved at a later 5662 time) 5663 [Richard Levitte] 5664 5665 *) Make it so the openssl application has all engines loaded by default. 5666 [Richard Levitte] 5667 5668 *) Constify the BIGNUM routines a little more. 5669 [Richard Levitte] 5670 5671 *) Add the following functions: 5672 5673 ENGINE_load_cswift() 5674 ENGINE_load_chil() 5675 ENGINE_load_atalla() 5676 ENGINE_load_nuron() 5677 ENGINE_load_builtin_engines() 5678 5679 That way, an application can itself choose if external engines that 5680 are built-in in OpenSSL shall ever be used or not. The benefit is 5681 that applications won't have to be linked with libdl or other dso 5682 libraries unless it's really needed. 5683 5684 Changed 'openssl engine' to load all engines on demand. 5685 Changed the engine header files to avoid the duplication of some 5686 declarations (they differed!). 5687 [Richard Levitte] 5688 5689 *) 'openssl engine' can now list capabilities. 5690 [Richard Levitte] 5691 5692 *) Better error reporting in 'openssl engine'. 5693 [Richard Levitte] 5694 5695 *) Never call load_dh_param(NULL) in s_server. 5696 [Bodo Moeller] 5697 5698 *) Add engine application. It can currently list engines by name and 5699 identity, and test if they are actually available. 5700 [Richard Levitte] 5701 5702 *) Improve RPM specification file by forcing symbolic linking and making 5703 sure the installed documentation is also owned by root.root. 5704 [Damien Miller <djm@mindrot.org>] 5705 5706 *) Give the OpenSSL applications more possibilities to make use of 5707 keys (public as well as private) handled by engines. 5708 [Richard Levitte] 5709 5710 *) Add OCSP code that comes from CertCo. 5711 [Richard Levitte] 5712 5713 *) Add VMS support for the Rijndael code. 5714 [Richard Levitte] 5715 5716 *) Added untested support for Nuron crypto accelerator. 5717 [Ben Laurie] 5718 5719 *) Add support for external cryptographic devices. This code was 5720 previously distributed separately as the "engine" branch. 5721 [Geoff Thorpe, Richard Levitte] 5722 5723 *) Rework the filename-translation in the DSO code. It is now possible to 5724 have far greater control over how a "name" is turned into a filename 5725 depending on the operating environment and any oddities about the 5726 different shared library filenames on each system. 5727 [Geoff Thorpe] 5728 5729 *) Support threads on FreeBSD-elf in Configure. 5730 [Richard Levitte] 5731 5732 *) Fix for SHA1 assembly problem with MASM: it produces 5733 warnings about corrupt line number information when assembling 5734 with debugging information. This is caused by the overlapping 5735 of two sections. 5736 [Bernd Matthes <mainbug@celocom.de>, Steve Henson] 5737 5738 *) NCONF changes. 5739 NCONF_get_number() has no error checking at all. As a replacement, 5740 NCONF_get_number_e() is defined (_e for "error checking") and is 5741 promoted strongly. The old NCONF_get_number is kept around for 5742 binary backward compatibility. 5743 Make it possible for methods to load from something other than a BIO, 5744 by providing a function pointer that is given a name instead of a BIO. 5745 For example, this could be used to load configuration data from an 5746 LDAP server. 5747 [Richard Levitte] 5748 5749 *) Fix for non blocking accept BIOs. Added new I/O special reason 5750 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs 5751 with non blocking I/O was not possible because no retry code was 5752 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover 5753 this case. 5754 [Steve Henson] 5755 5756 *) Added the beginnings of Rijndael support. 5757 [Ben Laurie] 5758 5759 *) Fix for bug in DirectoryString mask setting. Add support for 5760 X509_NAME_print_ex() in 'req' and X509_print_ex() function 5761 to allow certificate printing to more controllable, additional 5762 'certopt' option to 'x509' to allow new printing options to be 5763 set. 5764 [Steve Henson] 5765 5766 *) Clean old EAY MD5 hack from e_os.h. 5767 [Richard Levitte] 5768 5769 Changes between 0.9.6l and 0.9.6m [17 Mar 2004] 5770 5771 *) Fix null-pointer assignment in do_change_cipher_spec() revealed 5772 by using the Codenomicon TLS Test Tool (CVE-2004-0079) 5773 [Joe Orton, Steve Henson] 5774 5775 Changes between 0.9.6k and 0.9.6l [04 Nov 2003] 5776 5777 *) Fix additional bug revealed by the NISCC test suite: 5778 5779 Stop bug triggering large recursion when presented with 5780 certain ASN.1 tags (CVE-2003-0851) 5781 [Steve Henson] 5782 5783 Changes between 0.9.6j and 0.9.6k [30 Sep 2003] 5784 5785 *) Fix various bugs revealed by running the NISCC test suite: 5786 5787 Stop out of bounds reads in the ASN1 code when presented with 5788 invalid tags (CVE-2003-0543 and CVE-2003-0544). 5789 5790 If verify callback ignores invalid public key errors don't try to check 5791 certificate signature with the NULL public key. 5792 5793 [Steve Henson] 5794 5795 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 5796 if the server requested one: as stated in TLS 1.0 and SSL 3.0 5797 specifications. 5798 [Steve Henson] 5799 5800 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 5801 extra data after the compression methods not only for TLS 1.0 5802 but also for SSL 3.0 (as required by the specification). 5803 [Bodo Moeller; problem pointed out by Matthias Loepfe] 5804 5805 *) Change X509_certificate_type() to mark the key as exported/exportable 5806 when it's 512 *bits* long, not 512 bytes. 5807 [Richard Levitte] 5808 5809 Changes between 0.9.6i and 0.9.6j [10 Apr 2003] 5810 5811 *) Countermeasure against the Klima-Pokorny-Rosa extension of 5812 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 5813 a protocol version number mismatch like a decryption error 5814 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 5815 [Bodo Moeller] 5816 5817 *) Turn on RSA blinding by default in the default implementation 5818 to avoid a timing attack. Applications that don't want it can call 5819 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 5820 They would be ill-advised to do so in most cases. 5821 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller] 5822 5823 *) Change RSA blinding code so that it works when the PRNG is not 5824 seeded (in this case, the secret RSA exponent is abused as 5825 an unpredictable seed -- if it is not unpredictable, there 5826 is no point in blinding anyway). Make RSA blinding thread-safe 5827 by remembering the creator's thread ID in rsa->blinding and 5828 having all other threads use local one-time blinding factors 5829 (this requires more computation than sharing rsa->blinding, but 5830 avoids excessive locking; and if an RSA object is not shared 5831 between threads, blinding will still be very fast). 5832 [Bodo Moeller] 5833 5834 Changes between 0.9.6h and 0.9.6i [19 Feb 2003] 5835 5836 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 5837 via timing by performing a MAC computation even if incorrrect 5838 block cipher padding has been found. This is a countermeasure 5839 against active attacks where the attacker has to distinguish 5840 between bad padding and a MAC verification error. (CVE-2003-0078) 5841 5842 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 5843 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 5844 Martin Vuagnoux (EPFL, Ilion)] 5845 5846 Changes between 0.9.6g and 0.9.6h [5 Dec 2002] 5847 5848 *) New function OPENSSL_cleanse(), which is used to cleanse a section of 5849 memory from it's contents. This is done with a counter that will 5850 place alternating values in each byte. This can be used to solve 5851 two issues: 1) the removal of calls to memset() by highly optimizing 5852 compilers, and 2) cleansing with other values than 0, since those can 5853 be read through on certain media, for example a swap space on disk. 5854 [Geoff Thorpe] 5855 5856 *) Bugfix: client side session caching did not work with external caching, 5857 because the session->cipher setting was not restored when reloading 5858 from the external cache. This problem was masked, when 5859 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set. 5860 (Found by Steve Haslam <steve@araqnid.ddts.net>.) 5861 [Lutz Jaenicke] 5862 5863 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total 5864 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33. 5865 [Zeev Lieber <zeev-l@yahoo.com>] 5866 5867 *) Undo an undocumented change introduced in 0.9.6e which caused 5868 repeated calls to OpenSSL_add_all_ciphers() and 5869 OpenSSL_add_all_digests() to be ignored, even after calling 5870 EVP_cleanup(). 5871 [Richard Levitte] 5872 5873 *) Change the default configuration reader to deal with last line not 5874 being properly terminated. 5875 [Richard Levitte] 5876 5877 *) Change X509_NAME_cmp() so it applies the special rules on handling 5878 DN values that are of type PrintableString, as well as RDNs of type 5879 emailAddress where the value has the type ia5String. 5880 [stefank@valicert.com via Richard Levitte] 5881 5882 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half 5883 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently 5884 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be 5885 the bitwise-OR of the two for use by the majority of applications 5886 wanting this behaviour, and update the docs. The documented 5887 behaviour and actual behaviour were inconsistent and had been 5888 changing anyway, so this is more a bug-fix than a behavioural 5889 change. 5890 [Geoff Thorpe, diagnosed by Nadav Har'El] 5891 5892 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c 5893 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes). 5894 [Bodo Moeller] 5895 5896 *) Fix initialization code race conditions in 5897 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(), 5898 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(), 5899 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(), 5900 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(), 5901 ssl2_get_cipher_by_char(), 5902 ssl3_get_cipher_by_char(). 5903 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller] 5904 5905 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after 5906 the cached sessions are flushed, as the remove_cb() might use ex_data 5907 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com> 5908 (see [openssl.org #212]). 5909 [Geoff Thorpe, Lutz Jaenicke] 5910 5911 *) Fix typo in OBJ_txt2obj which incorrectly passed the content 5912 length, instead of the encoding length to d2i_ASN1_OBJECT. 5913 [Steve Henson] 5914 5915 Changes between 0.9.6f and 0.9.6g [9 Aug 2002] 5916 5917 *) [In 0.9.6g-engine release:] 5918 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall'). 5919 [Lynn Gazis <lgazis@rainbow.com>] 5920 5921 Changes between 0.9.6e and 0.9.6f [8 Aug 2002] 5922 5923 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX 5924 and get fix the header length calculation. 5925 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>, 5926 Alon Kantor <alonk@checkpoint.com> (and others), 5927 Steve Henson] 5928 5929 *) Use proper error handling instead of 'assertions' in buffer 5930 overflow checks added in 0.9.6e. This prevents DoS (the 5931 assertions could call abort()). 5932 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller] 5933 5934 Changes between 0.9.6d and 0.9.6e [30 Jul 2002] 5935 5936 *) Add various sanity checks to asn1_get_length() to reject 5937 the ASN1 length bytes if they exceed sizeof(long), will appear 5938 negative or the content length exceeds the length of the 5939 supplied buffer. 5940 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>] 5941 5942 *) Fix cipher selection routines: ciphers without encryption had no flags 5943 for the cipher strength set and where therefore not handled correctly 5944 by the selection routines (PR #130). 5945 [Lutz Jaenicke] 5946 5947 *) Fix EVP_dsa_sha macro. 5948 [Nils Larsch] 5949 5950 *) New option 5951 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS 5952 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure 5953 that was added in OpenSSL 0.9.6d. 5954 5955 As the countermeasure turned out to be incompatible with some 5956 broken SSL implementations, the new option is part of SSL_OP_ALL. 5957 SSL_OP_ALL is usually employed when compatibility with weird SSL 5958 implementations is desired (e.g. '-bugs' option to 's_client' and 5959 's_server'), so the new option is automatically set in many 5960 applications. 5961 [Bodo Moeller] 5962 5963 *) Changes in security patch: 5964 5965 Changes marked "(CHATS)" were sponsored by the Defense Advanced 5966 Research Projects Agency (DARPA) and Air Force Research Laboratory, 5967 Air Force Materiel Command, USAF, under agreement number 5968 F30602-01-2-0537. 5969 5970 *) Add various sanity checks to asn1_get_length() to reject 5971 the ASN1 length bytes if they exceed sizeof(long), will appear 5972 negative or the content length exceeds the length of the 5973 supplied buffer. (CVE-2002-0659) 5974 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>] 5975 5976 *) Assertions for various potential buffer overflows, not known to 5977 happen in practice. 5978 [Ben Laurie (CHATS)] 5979 5980 *) Various temporary buffers to hold ASCII versions of integers were 5981 too small for 64 bit platforms. (CVE-2002-0655) 5982 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)> 5983 5984 *) Remote buffer overflow in SSL3 protocol - an attacker could 5985 supply an oversized session ID to a client. (CVE-2002-0656) 5986 [Ben Laurie (CHATS)] 5987 5988 *) Remote buffer overflow in SSL2 protocol - an attacker could 5989 supply an oversized client master key. (CVE-2002-0656) 5990 [Ben Laurie (CHATS)] 5991 5992 Changes between 0.9.6c and 0.9.6d [9 May 2002] 5993 5994 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not 5995 encoded as NULL) with id-dsa-with-sha1. 5996 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller] 5997 5998 *) Check various X509_...() return values in apps/req.c. 5999 [Nils Larsch <nla@trustcenter.de>] 6000 6001 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines: 6002 an end-of-file condition would erronously be flagged, when the CRLF 6003 was just at the end of a processed block. The bug was discovered when 6004 processing data through a buffering memory BIO handing the data to a 6005 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov 6006 <ptsekov@syntrex.com> and Nedelcho Stanev. 6007 [Lutz Jaenicke] 6008 6009 *) Implement a countermeasure against a vulnerability recently found 6010 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment 6011 before application data chunks to avoid the use of known IVs 6012 with data potentially chosen by the attacker. 6013 [Bodo Moeller] 6014 6015 *) Fix length checks in ssl3_get_client_hello(). 6016 [Bodo Moeller] 6017 6018 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently 6019 to prevent ssl3_read_internal() from incorrectly assuming that 6020 ssl3_read_bytes() found application data while handshake 6021 processing was enabled when in fact s->s3->in_read_app_data was 6022 merely automatically cleared during the initial handshake. 6023 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>] 6024 6025 *) Fix object definitions for Private and Enterprise: they were not 6026 recognized in their shortname (=lowercase) representation. Extend 6027 obj_dat.pl to issue an error when using undefined keywords instead 6028 of silently ignoring the problem (Svenning Sorensen 6029 <sss@sss.dnsalias.net>). 6030 [Lutz Jaenicke] 6031 6032 *) Fix DH_generate_parameters() so that it works for 'non-standard' 6033 generators, i.e. generators other than 2 and 5. (Previously, the 6034 code did not properly initialise the 'add' and 'rem' values to 6035 BN_generate_prime().) 6036 6037 In the new general case, we do not insist that 'generator' is 6038 actually a primitive root: This requirement is rather pointless; 6039 a generator of the order-q subgroup is just as good, if not 6040 better. 6041 [Bodo Moeller] 6042 6043 *) Map new X509 verification errors to alerts. Discovered and submitted by 6044 Tom Wu <tom@arcot.com>. 6045 [Lutz Jaenicke] 6046 6047 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from 6048 returning non-zero before the data has been completely received 6049 when using non-blocking I/O. 6050 [Bodo Moeller; problem pointed out by John Hughes] 6051 6052 *) Some of the ciphers missed the strength entry (SSL_LOW etc). 6053 [Ben Laurie, Lutz Jaenicke] 6054 6055 *) Fix bug in SSL_clear(): bad sessions were not removed (found by 6056 Yoram Zahavi <YoramZ@gilian.com>). 6057 [Lutz Jaenicke] 6058 6059 *) Add information about CygWin 1.3 and on, and preserve proper 6060 configuration for the versions before that. 6061 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte] 6062 6063 *) Make removal from session cache (SSL_CTX_remove_session()) more robust: 6064 check whether we deal with a copy of a session and do not delete from 6065 the cache in this case. Problem reported by "Izhar Shoshani Levi" 6066 <izhar@checkpoint.com>. 6067 [Lutz Jaenicke] 6068 6069 *) Do not store session data into the internal session cache, if it 6070 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP 6071 flag is set). Proposed by Aslam <aslam@funk.com>. 6072 [Lutz Jaenicke] 6073 6074 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested 6075 value is 0. 6076 [Richard Levitte] 6077 6078 *) [In 0.9.6d-engine release:] 6079 Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 6080 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] 6081 6082 *) Add the configuration target linux-s390x. 6083 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte] 6084 6085 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of 6086 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag 6087 variable as an indication that a ClientHello message has been 6088 received. As the flag value will be lost between multiple 6089 invocations of ssl3_accept when using non-blocking I/O, the 6090 function may not be aware that a handshake has actually taken 6091 place, thus preventing a new session from being added to the 6092 session cache. 6093 6094 To avoid this problem, we now set s->new_session to 2 instead of 6095 using a local variable. 6096 [Lutz Jaenicke, Bodo Moeller] 6097 6098 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c) 6099 if the SSL_R_LENGTH_MISMATCH error is detected. 6100 [Geoff Thorpe, Bodo Moeller] 6101 6102 *) New 'shared_ldflag' column in Configure platform table. 6103 [Richard Levitte] 6104 6105 *) Fix EVP_CIPHER_mode macro. 6106 ["Dan S. Camper" <dan@bti.net>] 6107 6108 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown 6109 type, we must throw them away by setting rr->length to 0. 6110 [D P Chang <dpc@qualys.com>] 6111 6112 Changes between 0.9.6b and 0.9.6c [21 dec 2001] 6113 6114 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl 6115 <Dominikus.Scherkl@biodata.com>. (The previous implementation 6116 worked incorrectly for those cases where range = 10..._2 and 6117 3*range is two bits longer than range.) 6118 [Bodo Moeller] 6119 6120 *) Only add signing time to PKCS7 structures if it is not already 6121 present. 6122 [Steve Henson] 6123 6124 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce", 6125 OBJ_ld_ce should be OBJ_id_ce. 6126 Also some ip-pda OIDs in crypto/objects/objects.txt were 6127 incorrect (cf. RFC 3039). 6128 [Matt Cooper, Frederic Giudicelli, Bodo Moeller] 6129 6130 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid() 6131 returns early because it has nothing to do. 6132 [Andy Schneider <andy.schneider@bjss.co.uk>] 6133 6134 *) [In 0.9.6c-engine release:] 6135 Fix mutex callback return values in crypto/engine/hw_ncipher.c. 6136 [Andy Schneider <andy.schneider@bjss.co.uk>] 6137 6138 *) [In 0.9.6c-engine release:] 6139 Add support for Cryptographic Appliance's keyserver technology. 6140 (Use engine 'keyclient') 6141 [Cryptographic Appliances and Geoff Thorpe] 6142 6143 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89' 6144 is called via tools/c89.sh because arguments have to be 6145 rearranged (all '-L' options must appear before the first object 6146 modules). 6147 [Richard Shapiro <rshapiro@abinitio.com>] 6148 6149 *) [In 0.9.6c-engine release:] 6150 Add support for Broadcom crypto accelerator cards, backported 6151 from 0.9.7. 6152 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox] 6153 6154 *) [In 0.9.6c-engine release:] 6155 Add support for SureWare crypto accelerator cards from 6156 Baltimore Technologies. (Use engine 'sureware') 6157 [Baltimore Technologies and Mark Cox] 6158 6159 *) [In 0.9.6c-engine release:] 6160 Add support for crypto accelerator cards from Accelerated 6161 Encryption Processing, www.aep.ie. (Use engine 'aep') 6162 [AEP Inc. and Mark Cox] 6163 6164 *) Add a configuration entry for gcc on UnixWare. 6165 [Gary Benson <gbenson@redhat.com>] 6166 6167 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake 6168 messages are stored in a single piece (fixed-length part and 6169 variable-length part combined) and fix various bugs found on the way. 6170 [Bodo Moeller] 6171 6172 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname() 6173 instead. BIO_gethostbyname() does not know what timeouts are 6174 appropriate, so entries would stay in cache even when they have 6175 become invalid. 6176 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com> 6177 6178 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when 6179 faced with a pathologically small ClientHello fragment that does 6180 not contain client_version: Instead of aborting with an error, 6181 simply choose the highest available protocol version (i.e., 6182 TLS 1.0 unless it is disabled). In practice, ClientHello 6183 messages are never sent like this, but this change gives us 6184 strictly correct behaviour at least for TLS. 6185 [Bodo Moeller] 6186 6187 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear() 6188 never resets s->method to s->ctx->method when called from within 6189 one of the SSL handshake functions. 6190 [Bodo Moeller; problem pointed out by Niko Baric] 6191 6192 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert 6193 (sent using the client's version number) if client_version is 6194 smaller than the protocol version in use. Also change 6195 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if 6196 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then 6197 the client will at least see that alert. 6198 [Bodo Moeller] 6199 6200 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation 6201 correctly. 6202 [Bodo Moeller] 6203 6204 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a 6205 client receives HelloRequest while in a handshake. 6206 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>] 6207 6208 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C 6209 should end in 'break', not 'goto end' which circuments various 6210 cleanups done in state SSL_ST_OK. But session related stuff 6211 must be disabled for SSL_ST_OK in the case that we just sent a 6212 HelloRequest. 6213 6214 Also avoid some overhead by not calling ssl_init_wbio_buffer() 6215 before just sending a HelloRequest. 6216 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>] 6217 6218 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't 6219 reveal whether illegal block cipher padding was found or a MAC 6220 verification error occured. (Neither SSLerr() codes nor alerts 6221 are directly visible to potential attackers, but the information 6222 may leak via logfiles.) 6223 6224 Similar changes are not required for the SSL 2.0 implementation 6225 because the number of padding bytes is sent in clear for SSL 2.0, 6226 and the extra bytes are just ignored. However ssl/s2_pkt.c 6227 failed to verify that the purported number of padding bytes is in 6228 the legal range. 6229 [Bodo Moeller] 6230 6231 *) Add OpenUNIX-8 support including shared libraries 6232 (Boyd Lynn Gerber <gerberb@zenez.com>). 6233 [Lutz Jaenicke] 6234 6235 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid 6236 'wristwatch attack' using huge encoding parameters (cf. 6237 James H. Manger's CRYPTO 2001 paper). Note that the 6238 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use 6239 encoding parameters and hence was not vulnerable. 6240 [Bodo Moeller] 6241 6242 *) BN_sqr() bug fix. 6243 [Ulf M�ller, reported by Jim Ellis <jim.ellis@cavium.com>] 6244 6245 *) Rabin-Miller test analyses assume uniformly distributed witnesses, 6246 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand() 6247 followed by modular reduction. 6248 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>] 6249 6250 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range() 6251 equivalent based on BN_pseudo_rand() instead of BN_rand(). 6252 [Bodo Moeller] 6253 6254 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB). 6255 This function was broken, as the check for a new client hello message 6256 to handle SGC did not allow these large messages. 6257 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.) 6258 [Lutz Jaenicke] 6259 6260 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long](). 6261 [Lutz Jaenicke] 6262 6263 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl() 6264 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>). 6265 [Lutz Jaenicke] 6266 6267 *) Rework the configuration and shared library support for Tru64 Unix. 6268 The configuration part makes use of modern compiler features and 6269 still retains old compiler behavior for those that run older versions 6270 of the OS. The shared library support part includes a variant that 6271 uses the RPATH feature, and is available through the special 6272 configuration target "alpha-cc-rpath", which will never be selected 6273 automatically. 6274 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte] 6275 6276 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message() 6277 with the same message size as in ssl3_get_certificate_request(). 6278 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest 6279 messages might inadvertently be reject as too long. 6280 [Petr Lampa <lampa@fee.vutbr.cz>] 6281 6282 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX). 6283 [Andy Polyakov] 6284 6285 *) Modified SSL library such that the verify_callback that has been set 6286 specificly for an SSL object with SSL_set_verify() is actually being 6287 used. Before the change, a verify_callback set with this function was 6288 ignored and the verify_callback() set in the SSL_CTX at the time of 6289 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced 6290 to allow the necessary settings. 6291 [Lutz Jaenicke] 6292 6293 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c 6294 explicitly to NULL, as at least on Solaris 8 this seems not always to be 6295 done automatically (in contradiction to the requirements of the C 6296 standard). This made problems when used from OpenSSH. 6297 [Lutz Jaenicke] 6298 6299 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored 6300 dh->length and always used 6301 6302 BN_rand_range(priv_key, dh->p). 6303 6304 BN_rand_range() is not necessary for Diffie-Hellman, and this 6305 specific range makes Diffie-Hellman unnecessarily inefficient if 6306 dh->length (recommended exponent length) is much smaller than the 6307 length of dh->p. We could use BN_rand_range() if the order of 6308 the subgroup was stored in the DH structure, but we only have 6309 dh->length. 6310 6311 So switch back to 6312 6313 BN_rand(priv_key, l, ...) 6314 6315 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1 6316 otherwise. 6317 [Bodo Moeller] 6318 6319 *) In 6320 6321 RSA_eay_public_encrypt 6322 RSA_eay_private_decrypt 6323 RSA_eay_private_encrypt (signing) 6324 RSA_eay_public_decrypt (signature verification) 6325 6326 (default implementations for RSA_public_encrypt, 6327 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt), 6328 always reject numbers >= n. 6329 [Bodo Moeller] 6330 6331 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2 6332 to synchronize access to 'locking_thread'. This is necessary on 6333 systems where access to 'locking_thread' (an 'unsigned long' 6334 variable) is not atomic. 6335 [Bodo Moeller] 6336 6337 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID 6338 *before* setting the 'crypto_lock_rand' flag. The previous code had 6339 a race condition if 0 is a valid thread ID. 6340 [Travis Vitek <vitek@roguewave.com>] 6341 6342 *) Add support for shared libraries under Irix. 6343 [Albert Chin-A-Young <china@thewrittenword.com>] 6344 6345 *) Add configuration option to build on Linux on both big-endian and 6346 little-endian MIPS. 6347 [Ralf Baechle <ralf@uni-koblenz.de>] 6348 6349 *) Add the possibility to create shared libraries on HP-UX. 6350 [Richard Levitte] 6351 6352 Changes between 0.9.6a and 0.9.6b [9 Jul 2001] 6353 6354 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c) 6355 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by 6356 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>: 6357 PRNG state recovery was possible based on the output of 6358 one PRNG request appropriately sized to gain knowledge on 6359 'md' followed by enough consecutive 1-byte PRNG requests 6360 to traverse all of 'state'. 6361 6362 1. When updating 'md_local' (the current thread's copy of 'md') 6363 during PRNG output generation, hash all of the previous 6364 'md_local' value, not just the half used for PRNG output. 6365 6366 2. Make the number of bytes from 'state' included into the hash 6367 independent from the number of PRNG bytes requested. 6368 6369 The first measure alone would be sufficient to avoid 6370 Markku-Juhani's attack. (Actually it had never occurred 6371 to me that the half of 'md_local' used for chaining was the 6372 half from which PRNG output bytes were taken -- I had always 6373 assumed that the secret half would be used.) The second 6374 measure makes sure that additional data from 'state' is never 6375 mixed into 'md_local' in small portions; this heuristically 6376 further strengthens the PRNG. 6377 [Bodo Moeller] 6378 6379 *) Fix crypto/bn/asm/mips3.s. 6380 [Andy Polyakov] 6381 6382 *) When only the key is given to "enc", the IV is undefined. Print out 6383 an error message in this case. 6384 [Lutz Jaenicke] 6385 6386 *) Handle special case when X509_NAME is empty in X509 printing routines. 6387 [Steve Henson] 6388 6389 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are 6390 positive and less than q. 6391 [Bodo Moeller] 6392 6393 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is 6394 used: it isn't thread safe and the add_lock_callback should handle 6395 that itself. 6396 [Paul Rose <Paul.Rose@bridge.com>] 6397 6398 *) Verify that incoming data obeys the block size in 6399 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c). 6400 [Bodo Moeller] 6401 6402 *) Fix OAEP check. 6403 [Ulf M�ller, Bodo M�ller] 6404 6405 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5 6406 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5 6407 when fixing the server behaviour for backwards-compatible 'client 6408 hello' messages. (Note that the attack is impractical against 6409 SSL 3.0 and TLS 1.0 anyway because length and version checking 6410 means that the probability of guessing a valid ciphertext is 6411 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98 6412 paper.) 6413 6414 Before 0.9.5, the countermeasure (hide the error by generating a 6415 random 'decryption result') did not work properly because 6416 ERR_clear_error() was missing, meaning that SSL_get_error() would 6417 detect the supposedly ignored error. 6418 6419 Both problems are now fixed. 6420 [Bodo Moeller] 6421 6422 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096 6423 (previously it was 1024). 6424 [Bodo Moeller] 6425 6426 *) Fix for compatibility mode trust settings: ignore trust settings 6427 unless some valid trust or reject settings are present. 6428 [Steve Henson] 6429 6430 *) Fix for blowfish EVP: its a variable length cipher. 6431 [Steve Henson] 6432 6433 *) Fix various bugs related to DSA S/MIME verification. Handle missing 6434 parameters in DSA public key structures and return an error in the 6435 DSA routines if parameters are absent. 6436 [Steve Henson] 6437 6438 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd" 6439 in the current directory if neither $RANDFILE nor $HOME was set. 6440 RAND_file_name() in 0.9.6a returned NULL in this case. This has 6441 caused some confusion to Windows users who haven't defined $HOME. 6442 Thus RAND_file_name() is changed again: e_os.h can define a 6443 DEFAULT_HOME, which will be used if $HOME is not set. 6444 For Windows, we use "C:"; on other platforms, we still require 6445 environment variables. 6446 6447 *) Move 'if (!initialized) RAND_poll()' into regions protected by 6448 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids 6449 having multiple threads call RAND_poll() concurrently. 6450 [Bodo Moeller] 6451 6452 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a 6453 combination of a flag and a thread ID variable. 6454 Otherwise while one thread is in ssleay_rand_bytes (which sets the 6455 flag), *other* threads can enter ssleay_add_bytes without obeying 6456 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock 6457 that they do not hold after the first thread unsets add_do_not_lock). 6458 [Bodo Moeller] 6459 6460 *) Change bctest again: '-x' expressions are not available in all 6461 versions of 'test'. 6462 [Bodo Moeller] 6463 6464 Changes between 0.9.6 and 0.9.6a [5 Apr 2001] 6465 6466 *) Fix a couple of memory leaks in PKCS7_dataDecode() 6467 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>] 6468 6469 *) Change Configure and Makefiles to provide EXE_EXT, which will contain 6470 the default extension for executables, if any. Also, make the perl 6471 scripts that use symlink() to test if it really exists and use "cp" 6472 if it doesn't. All this made OpenSSL compilable and installable in 6473 CygWin. 6474 [Richard Levitte] 6475 6476 *) Fix for asn1_GetSequence() for indefinite length constructed data. 6477 If SEQUENCE is length is indefinite just set c->slen to the total 6478 amount of data available. 6479 [Steve Henson, reported by shige@FreeBSD.org] 6480 [This change does not apply to 0.9.7.] 6481 6482 *) Change bctest to avoid here-documents inside command substitution 6483 (workaround for FreeBSD /bin/sh bug). 6484 For compatibility with Ultrix, avoid shell functions (introduced 6485 in the bctest version that searches along $PATH). 6486 [Bodo Moeller] 6487 6488 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes 6489 with des_encrypt() defined on some operating systems, like Solaris 6490 and UnixWare. 6491 [Richard Levitte] 6492 6493 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton: 6494 On the Importance of Eliminating Errors in Cryptographic 6495 Computations, J. Cryptology 14 (2001) 2, 101-119, 6496 http://theory.stanford.edu/~dabo/papers/faults.ps.gz). 6497 [Ulf Moeller] 6498 6499 *) MIPS assembler BIGNUM division bug fix. 6500 [Andy Polyakov] 6501 6502 *) Disabled incorrect Alpha assembler code. 6503 [Richard Levitte] 6504 6505 *) Fix PKCS#7 decode routines so they correctly update the length 6506 after reading an EOC for the EXPLICIT tag. 6507 [Steve Henson] 6508 [This change does not apply to 0.9.7.] 6509 6510 *) Fix bug in PKCS#12 key generation routines. This was triggered 6511 if a 3DES key was generated with a 0 initial byte. Include 6512 PKCS12_BROKEN_KEYGEN compilation option to retain the old 6513 (but broken) behaviour. 6514 [Steve Henson] 6515 6516 *) Enhance bctest to search for a working bc along $PATH and print 6517 it when found. 6518 [Tim Rice <tim@multitalents.net> via Richard Levitte] 6519 6520 *) Fix memory leaks in err.c: free err_data string if necessary; 6521 don't write to the wrong index in ERR_set_error_data. 6522 [Bodo Moeller] 6523 6524 *) Implement ssl23_peek (analogous to ssl23_read), which previously 6525 did not exist. 6526 [Bodo Moeller] 6527 6528 *) Replace rdtsc with _emit statements for VC++ version 5. 6529 [Jeremy Cooper <jeremy@baymoo.org>] 6530 6531 *) Make it possible to reuse SSLv2 sessions. 6532 [Richard Levitte] 6533 6534 *) In copy_email() check for >= 0 as a return value for 6535 X509_NAME_get_index_by_NID() since 0 is a valid index. 6536 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>] 6537 6538 *) Avoid coredump with unsupported or invalid public keys by checking if 6539 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when 6540 PKCS7_verify() fails with non detached data. 6541 [Steve Henson] 6542 6543 *) Don't use getenv in library functions when run as setuid/setgid. 6544 New function OPENSSL_issetugid(). 6545 [Ulf Moeller] 6546 6547 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c) 6548 due to incorrect handling of multi-threading: 6549 6550 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl(). 6551 6552 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on(). 6553 6554 3. Count how many times MemCheck_off() has been called so that 6555 nested use can be treated correctly. This also avoids 6556 inband-signalling in the previous code (which relied on the 6557 assumption that thread ID 0 is impossible). 6558 [Bodo Moeller] 6559 6560 *) Add "-rand" option also to s_client and s_server. 6561 [Lutz Jaenicke] 6562 6563 *) Fix CPU detection on Irix 6.x. 6564 [Kurt Hockenbury <khockenb@stevens-tech.edu> and 6565 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>] 6566 6567 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME 6568 was empty. 6569 [Steve Henson] 6570 [This change does not apply to 0.9.7.] 6571 6572 *) Use the cached encoding of an X509_NAME structure rather than 6573 copying it. This is apparently the reason for the libsafe "errors" 6574 but the code is actually correct. 6575 [Steve Henson] 6576 6577 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent 6578 Bleichenbacher's DSA attack. 6579 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits 6580 to be set and top=0 forces the highest bit to be set; top=-1 is new 6581 and leaves the highest bit random. 6582 [Ulf Moeller, Bodo Moeller] 6583 6584 *) In the NCONF_...-based implementations for CONF_... queries 6585 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using 6586 a temporary CONF structure with the data component set to NULL 6587 (which gives segmentation faults in lh_retrieve). 6588 Instead, use NULL for the CONF pointer in CONF_get_string and 6589 CONF_get_number (which may use environment variables) and directly 6590 return NULL from CONF_get_section. 6591 [Bodo Moeller] 6592 6593 *) Fix potential buffer overrun for EBCDIC. 6594 [Ulf Moeller] 6595 6596 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign 6597 keyUsage if basicConstraints absent for a CA. 6598 [Steve Henson] 6599 6600 *) Make SMIME_write_PKCS7() write mail header values with a format that 6601 is more generally accepted (no spaces before the semicolon), since 6602 some programs can't parse those values properly otherwise. Also make 6603 sure BIO's that break lines after each write do not create invalid 6604 headers. 6605 [Richard Levitte] 6606 6607 *) Make the CRL encoding routines work with empty SEQUENCE OF. The 6608 macros previously used would not encode an empty SEQUENCE OF 6609 and break the signature. 6610 [Steve Henson] 6611 [This change does not apply to 0.9.7.] 6612 6613 *) Zero the premaster secret after deriving the master secret in 6614 DH ciphersuites. 6615 [Steve Henson] 6616 6617 *) Add some EVP_add_digest_alias registrations (as found in 6618 OpenSSL_add_all_digests()) to SSL_library_init() 6619 aka OpenSSL_add_ssl_algorithms(). This provides improved 6620 compatibility with peers using X.509 certificates 6621 with unconventional AlgorithmIdentifier OIDs. 6622 [Bodo Moeller] 6623 6624 *) Fix for Irix with NO_ASM. 6625 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>] 6626 6627 *) ./config script fixes. 6628 [Ulf Moeller, Richard Levitte] 6629 6630 *) Fix 'openssl passwd -1'. 6631 [Bodo Moeller] 6632 6633 *) Change PKCS12_key_gen_asc() so it can cope with non null 6634 terminated strings whose length is passed in the passlen 6635 parameter, for example from PEM callbacks. This was done 6636 by adding an extra length parameter to asc2uni(). 6637 [Steve Henson, reported by <oddissey@samsung.co.kr>] 6638 6639 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn 6640 call failed, free the DSA structure. 6641 [Bodo Moeller] 6642 6643 *) Fix to uni2asc() to cope with zero length Unicode strings. 6644 These are present in some PKCS#12 files. 6645 [Steve Henson] 6646 6647 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c). 6648 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits 6649 when writing a 32767 byte record. 6650 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>] 6651 6652 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c), 6653 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}. 6654 6655 (RSA objects have a reference count access to which is protected 6656 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c], 6657 so they are meant to be shared between threads.) 6658 [Bodo Moeller, Geoff Thorpe; original patch submitted by 6659 "Reddie, Steven" <Steven.Reddie@ca.com>] 6660 6661 *) Fix a deadlock in CRYPTO_mem_leaks(). 6662 [Bodo Moeller] 6663 6664 *) Use better test patterns in bntest. 6665 [Ulf M�ller] 6666 6667 *) rand_win.c fix for Borland C. 6668 [Ulf M�ller] 6669 6670 *) BN_rshift bugfix for n == 0. 6671 [Bodo Moeller] 6672 6673 *) Add a 'bctest' script that checks for some known 'bc' bugs 6674 so that 'make test' does not abort just because 'bc' is broken. 6675 [Bodo Moeller] 6676 6677 *) Store verify_result within SSL_SESSION also for client side to 6678 avoid potential security hole. (Re-used sessions on the client side 6679 always resulted in verify_result==X509_V_OK, not using the original 6680 result of the server certificate verification.) 6681 [Lutz Jaenicke] 6682 6683 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type 6684 SSL3_RT_APPLICATION_DATA, return 0. 6685 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true. 6686 [Bodo Moeller] 6687 6688 *) Fix SSL_peek: 6689 Both ssl2_peek and ssl3_peek, which were totally broken in earlier 6690 releases, have been re-implemented by renaming the previous 6691 implementations of ssl2_read and ssl3_read to ssl2_read_internal 6692 and ssl3_read_internal, respectively, and adding 'peek' parameters 6693 to them. The new ssl[23]_{read,peek} functions are calls to 6694 ssl[23]_read_internal with the 'peek' flag set appropriately. 6695 A 'peek' parameter has also been added to ssl3_read_bytes, which 6696 does the actual work for ssl3_read_internal. 6697 [Bodo Moeller] 6698 6699 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling 6700 the method-specific "init()" handler. Also clean up ex_data after 6701 calling the method-specific "finish()" handler. Previously, this was 6702 happening the other way round. 6703 [Geoff Thorpe] 6704 6705 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16. 6706 The previous value, 12, was not always sufficient for BN_mod_exp(). 6707 [Bodo Moeller] 6708 6709 *) Make sure that shared libraries get the internal name engine with 6710 the full version number and not just 0. This should mark the 6711 shared libraries as not backward compatible. Of course, this should 6712 be changed again when we can guarantee backward binary compatibility. 6713 [Richard Levitte] 6714 6715 *) Fix typo in get_cert_by_subject() in by_dir.c 6716 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>] 6717 6718 *) Rework the system to generate shared libraries: 6719 6720 - Make note of the expected extension for the shared libraries and 6721 if there is a need for symbolic links from for example libcrypto.so.0 6722 to libcrypto.so.0.9.7. There is extended info in Configure for 6723 that. 6724 6725 - Make as few rebuilds of the shared libraries as possible. 6726 6727 - Still avoid linking the OpenSSL programs with the shared libraries. 6728 6729 - When installing, install the shared libraries separately from the 6730 static ones. 6731 [Richard Levitte] 6732 6733 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument. 6734 6735 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new 6736 and not in SSL_clear because the latter is also used by the 6737 accept/connect functions; previously, the settings made by 6738 SSL_set_read_ahead would be lost during the handshake. 6739 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>] 6740 6741 *) Correct util/mkdef.pl to be selective about disabled algorithms. 6742 Previously, it would create entries for disableed algorithms no 6743 matter what. 6744 [Richard Levitte] 6745 6746 *) Added several new manual pages for SSL_* function. 6747 [Lutz Jaenicke] 6748 6749 Changes between 0.9.5a and 0.9.6 [24 Sep 2000] 6750 6751 *) In ssl23_get_client_hello, generate an error message when faced 6752 with an initial SSL 3.0/TLS record that is too small to contain the 6753 first two bytes of the ClientHello message, i.e. client_version. 6754 (Note that this is a pathologic case that probably has never happened 6755 in real life.) The previous approach was to use the version number 6756 from the record header as a substitute; but our protocol choice 6757 should not depend on that one because it is not authenticated 6758 by the Finished messages. 6759 [Bodo Moeller] 6760 6761 *) More robust randomness gathering functions for Windows. 6762 [Jeffrey Altman <jaltman@columbia.edu>] 6763 6764 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is 6765 not set then we don't setup the error code for issuer check errors 6766 to avoid possibly overwriting other errors which the callback does 6767 handle. If an application does set the flag then we assume it knows 6768 what it is doing and can handle the new informational codes 6769 appropriately. 6770 [Steve Henson] 6771 6772 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for 6773 a general "ANY" type, as such it should be able to decode anything 6774 including tagged types. However it didn't check the class so it would 6775 wrongly interpret tagged types in the same way as their universal 6776 counterpart and unknown types were just rejected. Changed so that the 6777 tagged and unknown types are handled in the same way as a SEQUENCE: 6778 that is the encoding is stored intact. There is also a new type 6779 "V_ASN1_OTHER" which is used when the class is not universal, in this 6780 case we have no idea what the actual type is so we just lump them all 6781 together. 6782 [Steve Henson] 6783 6784 *) On VMS, stdout may very well lead to a file that is written to 6785 in a record-oriented fashion. That means that every write() will 6786 write a separate record, which will be read separately by the 6787 programs trying to read from it. This can be very confusing. 6788 6789 The solution is to put a BIO filter in the way that will buffer 6790 text until a linefeed is reached, and then write everything a 6791 line at a time, so every record written will be an actual line, 6792 not chunks of lines and not (usually doesn't happen, but I've 6793 seen it once) several lines in one record. BIO_f_linebuffer() is 6794 the answer. 6795 6796 Currently, it's a VMS-only method, because that's where it has 6797 been tested well enough. 6798 [Richard Levitte] 6799 6800 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery, 6801 it can return incorrect results. 6802 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a, 6803 but it was in 0.9.6-beta[12].) 6804 [Bodo Moeller] 6805 6806 *) Disable the check for content being present when verifying detached 6807 signatures in pk7_smime.c. Some versions of Netscape (wrongly) 6808 include zero length content when signing messages. 6809 [Steve Henson] 6810 6811 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR 6812 BIO_ctrl (for BIO pairs). 6813 [Bodo M�ller] 6814 6815 *) Add DSO method for VMS. 6816 [Richard Levitte] 6817 6818 *) Bug fix: Montgomery multiplication could produce results with the 6819 wrong sign. 6820 [Ulf M�ller] 6821 6822 *) Add RPM specification openssl.spec and modify it to build three 6823 packages. The default package contains applications, application 6824 documentation and run-time libraries. The devel package contains 6825 include files, static libraries and function documentation. The 6826 doc package contains the contents of the doc directory. The original 6827 openssl.spec was provided by Damien Miller <djm@mindrot.org>. 6828 [Richard Levitte] 6829 6830 *) Add a large number of documentation files for many SSL routines. 6831 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>] 6832 6833 *) Add a configuration entry for Sony News 4. 6834 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>] 6835 6836 *) Don't set the two most significant bits to one when generating a 6837 random number < q in the DSA library. 6838 [Ulf M�ller] 6839 6840 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default 6841 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if 6842 the underlying transport is blocking) if a handshake took place. 6843 (The default behaviour is needed by applications such as s_client 6844 and s_server that use select() to determine when to use SSL_read; 6845 but for applications that know in advance when to expect data, it 6846 just makes things more complicated.) 6847 [Bodo Moeller] 6848 6849 *) Add RAND_egd_bytes(), which gives control over the number of bytes read 6850 from EGD. 6851 [Ben Laurie] 6852 6853 *) Add a few more EBCDIC conditionals that make `req' and `x509' 6854 work better on such systems. 6855 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] 6856 6857 *) Add two demo programs for PKCS12_parse() and PKCS12_create(). 6858 Update PKCS12_parse() so it copies the friendlyName and the 6859 keyid to the certificates aux info. 6860 [Steve Henson] 6861 6862 *) Fix bug in PKCS7_verify() which caused an infinite loop 6863 if there was more than one signature. 6864 [Sven Uszpelkat <su@celocom.de>] 6865 6866 *) Major change in util/mkdef.pl to include extra information 6867 about each symbol, as well as presentig variables as well 6868 as functions. This change means that there's n more need 6869 to rebuild the .num files when some algorithms are excluded. 6870 [Richard Levitte] 6871 6872 *) Allow the verify time to be set by an application, 6873 rather than always using the current time. 6874 [Steve Henson] 6875 6876 *) Phase 2 verify code reorganisation. The certificate 6877 verify code now looks up an issuer certificate by a 6878 number of criteria: subject name, authority key id 6879 and key usage. It also verifies self signed certificates 6880 by the same criteria. The main comparison function is 6881 X509_check_issued() which performs these checks. 6882 6883 Lot of changes were necessary in order to support this 6884 without completely rewriting the lookup code. 6885 6886 Authority and subject key identifier are now cached. 6887 6888 The LHASH 'certs' is X509_STORE has now been replaced 6889 by a STACK_OF(X509_OBJECT). This is mainly because an 6890 LHASH can't store or retrieve multiple objects with 6891 the same hash value. 6892 6893 As a result various functions (which were all internal 6894 use only) have changed to handle the new X509_STORE 6895 structure. This will break anything that messed round 6896 with X509_STORE internally. 6897 6898 The functions X509_STORE_add_cert() now checks for an 6899 exact match, rather than just subject name. 6900 6901 The X509_STORE API doesn't directly support the retrieval 6902 of multiple certificates matching a given criteria, however 6903 this can be worked round by performing a lookup first 6904 (which will fill the cache with candidate certificates) 6905 and then examining the cache for matches. This is probably 6906 the best we can do without throwing out X509_LOOKUP 6907 entirely (maybe later...). 6908 6909 The X509_VERIFY_CTX structure has been enhanced considerably. 6910 6911 All certificate lookup operations now go via a get_issuer() 6912 callback. Although this currently uses an X509_STORE it 6913 can be replaced by custom lookups. This is a simple way 6914 to bypass the X509_STORE hackery necessary to make this 6915 work and makes it possible to use more efficient techniques 6916 in future. A very simple version which uses a simple 6917 STACK for its trusted certificate store is also provided 6918 using X509_STORE_CTX_trusted_stack(). 6919 6920 The verify_cb() and verify() callbacks now have equivalents 6921 in the X509_STORE_CTX structure. 6922 6923 X509_STORE_CTX also has a 'flags' field which can be used 6924 to customise the verify behaviour. 6925 [Steve Henson] 6926 6927 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which 6928 excludes S/MIME capabilities. 6929 [Steve Henson] 6930 6931 *) When a certificate request is read in keep a copy of the 6932 original encoding of the signed data and use it when outputing 6933 again. Signatures then use the original encoding rather than 6934 a decoded, encoded version which may cause problems if the 6935 request is improperly encoded. 6936 [Steve Henson] 6937 6938 *) For consistency with other BIO_puts implementations, call 6939 buffer_write(b, ...) directly in buffer_puts instead of calling 6940 BIO_write(b, ...). 6941 6942 In BIO_puts, increment b->num_write as in BIO_write. 6943 [Peter.Sylvester@EdelWeb.fr] 6944 6945 *) Fix BN_mul_word for the case where the word is 0. (We have to use 6946 BN_zero, we may not return a BIGNUM with an array consisting of 6947 words set to zero.) 6948 [Bodo Moeller] 6949 6950 *) Avoid calling abort() from within the library when problems are 6951 detected, except if preprocessor symbols have been defined 6952 (such as REF_CHECK, BN_DEBUG etc.). 6953 [Bodo Moeller] 6954 6955 *) New openssl application 'rsautl'. This utility can be 6956 used for low level RSA operations. DER public key 6957 BIO/fp routines also added. 6958 [Steve Henson] 6959 6960 *) New Configure entry and patches for compiling on QNX 4. 6961 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>] 6962 6963 *) A demo state-machine implementation was sponsored by 6964 Nuron (http://www.nuron.com/) and is now available in 6965 demos/state_machine. 6966 [Ben Laurie] 6967 6968 *) New options added to the 'dgst' utility for signature 6969 generation and verification. 6970 [Steve Henson] 6971 6972 *) Unrecognized PKCS#7 content types are now handled via a 6973 catch all ASN1_TYPE structure. This allows unsupported 6974 types to be stored as a "blob" and an application can 6975 encode and decode it manually. 6976 [Steve Henson] 6977 6978 *) Fix various signed/unsigned issues to make a_strex.c 6979 compile under VC++. 6980 [Oscar Jacobsson <oscar.jacobsson@celocom.com>] 6981 6982 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct 6983 length if passed a buffer. ASN1_INTEGER_to_BN failed 6984 if passed a NULL BN and its argument was negative. 6985 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>] 6986 6987 *) Modification to PKCS#7 encoding routines to output definite 6988 length encoding. Since currently the whole structures are in 6989 memory there's not real point in using indefinite length 6990 constructed encoding. However if OpenSSL is compiled with 6991 the flag PKCS7_INDEFINITE_ENCODING the old form is used. 6992 [Steve Henson] 6993 6994 *) Added BIO_vprintf() and BIO_vsnprintf(). 6995 [Richard Levitte] 6996 6997 *) Added more prefixes to parse for in the the strings written 6998 through a logging bio, to cover all the levels that are available 6999 through syslog. The prefixes are now: 7000 7001 PANIC, EMERG, EMR => LOG_EMERG 7002 ALERT, ALR => LOG_ALERT 7003 CRIT, CRI => LOG_CRIT 7004 ERROR, ERR => LOG_ERR 7005 WARNING, WARN, WAR => LOG_WARNING 7006 NOTICE, NOTE, NOT => LOG_NOTICE 7007 INFO, INF => LOG_INFO 7008 DEBUG, DBG => LOG_DEBUG 7009 7010 and as before, if none of those prefixes are present at the 7011 beginning of the string, LOG_ERR is chosen. 7012 7013 On Win32, the LOG_* levels are mapped according to this: 7014 7015 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE 7016 LOG_WARNING => EVENTLOG_WARNING_TYPE 7017 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE 7018 7019 [Richard Levitte] 7020 7021 *) Made it possible to reconfigure with just the configuration 7022 argument "reconf" or "reconfigure". The command line arguments 7023 are stored in Makefile.ssl in the variable CONFIGURE_ARGS, 7024 and are retrieved from there when reconfiguring. 7025 [Richard Levitte] 7026 7027 *) MD4 implemented. 7028 [Assar Westerlund <assar@sics.se>, Richard Levitte] 7029 7030 *) Add the arguments -CAfile and -CApath to the pkcs12 utility. 7031 [Richard Levitte] 7032 7033 *) The obj_dat.pl script was messing up the sorting of object 7034 names. The reason was that it compared the quoted version 7035 of strings as a result "OCSP" > "OCSP Signing" because 7036 " > SPACE. Changed script to store unquoted versions of 7037 names and add quotes on output. It was also omitting some 7038 names from the lookup table if they were given a default 7039 value (that is if SN is missing it is given the same 7040 value as LN and vice versa), these are now added on the 7041 grounds that if an object has a name we should be able to 7042 look it up. Finally added warning output when duplicate 7043 short or long names are found. 7044 [Steve Henson] 7045 7046 *) Changes needed for Tandem NSK. 7047 [Scott Uroff <scott@xypro.com>] 7048 7049 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in 7050 RSA_padding_check_SSLv23(), special padding was never detected 7051 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol 7052 version rollback attacks was not effective. 7053 7054 In s23_clnt.c, don't use special rollback-attack detection padding 7055 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the 7056 client; similarly, in s23_srvr.c, don't do the rollback check if 7057 SSL 2.0 is the only protocol enabled in the server. 7058 [Bodo Moeller] 7059 7060 *) Make it possible to get hexdumps of unprintable data with 'openssl 7061 asn1parse'. By implication, the functions ASN1_parse_dump() and 7062 BIO_dump_indent() are added. 7063 [Richard Levitte] 7064 7065 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex() 7066 these print out strings and name structures based on various 7067 flags including RFC2253 support and proper handling of 7068 multibyte characters. Added options to the 'x509' utility 7069 to allow the various flags to be set. 7070 [Steve Henson] 7071 7072 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME. 7073 Also change the functions X509_cmp_current_time() and 7074 X509_gmtime_adj() work with an ASN1_TIME structure, 7075 this will enable certificates using GeneralizedTime in validity 7076 dates to be checked. 7077 [Steve Henson] 7078 7079 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid 7080 negative public key encodings) on by default, 7081 NO_NEG_PUBKEY_BUG can be set to disable it. 7082 [Steve Henson] 7083 7084 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT 7085 content octets. An i2c_ASN1_OBJECT is unnecessary because 7086 the encoding can be trivially obtained from the structure. 7087 [Steve Henson] 7088 7089 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock), 7090 not read locks (CRYPTO_r_[un]lock). 7091 [Bodo Moeller] 7092 7093 *) A first attempt at creating official support for shared 7094 libraries through configuration. I've kept it so the 7095 default is static libraries only, and the OpenSSL programs 7096 are always statically linked for now, but there are 7097 preparations for dynamic linking in place. 7098 This has been tested on Linux and Tru64. 7099 [Richard Levitte] 7100 7101 *) Randomness polling function for Win9x, as described in: 7102 Peter Gutmann, Software Generation of Practically Strong 7103 Random Numbers. 7104 [Ulf M�ller] 7105 7106 *) Fix so PRNG is seeded in req if using an already existing 7107 DSA key. 7108 [Steve Henson] 7109 7110 *) New options to smime application. -inform and -outform 7111 allow alternative formats for the S/MIME message including 7112 PEM and DER. The -content option allows the content to be 7113 specified separately. This should allow things like Netscape 7114 form signing output easier to verify. 7115 [Steve Henson] 7116 7117 *) Fix the ASN1 encoding of tags using the 'long form'. 7118 [Steve Henson] 7119 7120 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT 7121 STRING types. These convert content octets to and from the 7122 underlying type. The actual tag and length octets are 7123 already assumed to have been read in and checked. These 7124 are needed because all other string types have virtually 7125 identical handling apart from the tag. By having versions 7126 of the ASN1 functions that just operate on content octets 7127 IMPLICIT tagging can be handled properly. It also allows 7128 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED 7129 and ASN1_INTEGER are identical apart from the tag. 7130 [Steve Henson] 7131 7132 *) Change the handling of OID objects as follows: 7133 7134 - New object identifiers are inserted in objects.txt, following 7135 the syntax given in objects.README. 7136 - objects.pl is used to process obj_mac.num and create a new 7137 obj_mac.h. 7138 - obj_dat.pl is used to create a new obj_dat.h, using the data in 7139 obj_mac.h. 7140 7141 This is currently kind of a hack, and the perl code in objects.pl 7142 isn't very elegant, but it works as I intended. The simplest way 7143 to check that it worked correctly is to look in obj_dat.h and 7144 check the array nid_objs and make sure the objects haven't moved 7145 around (this is important!). Additions are OK, as well as 7146 consistent name changes. 7147 [Richard Levitte] 7148 7149 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1'). 7150 [Bodo Moeller] 7151 7152 *) Addition of the command line parameter '-rand file' to 'openssl req'. 7153 The given file adds to whatever has already been seeded into the 7154 random pool through the RANDFILE configuration file option or 7155 environment variable, or the default random state file. 7156 [Richard Levitte] 7157 7158 *) mkstack.pl now sorts each macro group into lexical order. 7159 Previously the output order depended on the order the files 7160 appeared in the directory, resulting in needless rewriting 7161 of safestack.h . 7162 [Steve Henson] 7163 7164 *) Patches to make OpenSSL compile under Win32 again. Mostly 7165 work arounds for the VC++ problem that it treats func() as 7166 func(void). Also stripped out the parts of mkdef.pl that 7167 added extra typesafe functions: these no longer exist. 7168 [Steve Henson] 7169 7170 *) Reorganisation of the stack code. The macros are now all 7171 collected in safestack.h . Each macro is defined in terms of 7172 a "stack macro" of the form SKM_<name>(type, a, b). The 7173 DEBUG_SAFESTACK is now handled in terms of function casts, 7174 this has the advantage of retaining type safety without the 7175 use of additional functions. If DEBUG_SAFESTACK is not defined 7176 then the non typesafe macros are used instead. Also modified the 7177 mkstack.pl script to handle the new form. Needs testing to see 7178 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK 7179 the default if no major problems. Similar behaviour for ASN1_SET_OF 7180 and PKCS12_STACK_OF. 7181 [Steve Henson] 7182 7183 *) When some versions of IIS use the 'NET' form of private key the 7184 key derivation algorithm is different. Normally MD5(password) is 7185 used as a 128 bit RC4 key. In the modified case 7186 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some 7187 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same 7188 as the old Netscape_RSA functions except they have an additional 7189 'sgckey' parameter which uses the modified algorithm. Also added 7190 an -sgckey command line option to the rsa utility. Thanks to 7191 Adrian Peck <bertie@ncipher.com> for posting details of the modified 7192 algorithm to openssl-dev. 7193 [Steve Henson] 7194 7195 *) The evp_local.h macros were using 'c.##kname' which resulted in 7196 invalid expansion on some systems (SCO 5.0.5 for example). 7197 Corrected to 'c.kname'. 7198 [Phillip Porch <root@theporch.com>] 7199 7200 *) New X509_get1_email() and X509_REQ_get1_email() functions that return 7201 a STACK of email addresses from a certificate or request, these look 7202 in the subject name and the subject alternative name extensions and 7203 omit any duplicate addresses. 7204 [Steve Henson] 7205 7206 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows. 7207 This makes DSA verification about 2 % faster. 7208 [Bodo Moeller] 7209 7210 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5 7211 (meaning that now 2^5 values will be precomputed, which is only 4 KB 7212 plus overhead for 1024 bit moduli). 7213 This makes exponentiations about 0.5 % faster for 1024 bit 7214 exponents (as measured by "openssl speed rsa2048"). 7215 [Bodo Moeller] 7216 7217 *) Rename memory handling macros to avoid conflicts with other 7218 software: 7219 Malloc => OPENSSL_malloc 7220 Malloc_locked => OPENSSL_malloc_locked 7221 Realloc => OPENSSL_realloc 7222 Free => OPENSSL_free 7223 [Richard Levitte] 7224 7225 *) New function BN_mod_exp_mont_word for small bases (roughly 15% 7226 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange). 7227 [Bodo Moeller] 7228 7229 *) CygWin32 support. 7230 [John Jarvie <jjarvie@newsguy.com>] 7231 7232 *) The type-safe stack code has been rejigged. It is now only compiled 7233 in when OpenSSL is configured with the DEBUG_SAFESTACK option and 7234 by default all type-specific stack functions are "#define"d back to 7235 standard stack functions. This results in more streamlined output 7236 but retains the type-safety checking possibilities of the original 7237 approach. 7238 [Geoff Thorpe] 7239 7240 *) The STACK code has been cleaned up, and certain type declarations 7241 that didn't make a lot of sense have been brought in line. This has 7242 also involved a cleanup of sorts in safestack.h to more correctly 7243 map type-safe stack functions onto their plain stack counterparts. 7244 This work has also resulted in a variety of "const"ifications of 7245 lots of the code, especially "_cmp" operations which should normally 7246 be prototyped with "const" parameters anyway. 7247 [Geoff Thorpe] 7248 7249 *) When generating bytes for the first time in md_rand.c, 'stir the pool' 7250 by seeding with STATE_SIZE dummy bytes (with zero entropy count). 7251 (The PRNG state consists of two parts, the large pool 'state' and 'md', 7252 where all of 'md' is used each time the PRNG is used, but 'state' 7253 is used only indexed by a cyclic counter. As entropy may not be 7254 well distributed from the beginning, 'md' is important as a 7255 chaining variable. However, the output function chains only half 7256 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains 7257 all of 'md', and seeding with STATE_SIZE dummy bytes will result 7258 in all of 'state' being rewritten, with the new values depending 7259 on virtually all of 'md'. This overcomes the 80 bit limitation.) 7260 [Bodo Moeller] 7261 7262 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when 7263 the handshake is continued after ssl_verify_cert_chain(); 7264 otherwise, if SSL_VERIFY_NONE is set, remaining error codes 7265 can lead to 'unexplainable' connection aborts later. 7266 [Bodo Moeller; problem tracked down by Lutz Jaenicke] 7267 7268 *) Major EVP API cipher revision. 7269 Add hooks for extra EVP features. This allows various cipher 7270 parameters to be set in the EVP interface. Support added for variable 7271 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and 7272 setting of RC2 and RC5 parameters. 7273 7274 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length 7275 ciphers. 7276 7277 Remove lots of duplicated code from the EVP library. For example *every* 7278 cipher init() function handles the 'iv' in the same way according to the 7279 cipher mode. They also all do nothing if the 'key' parameter is NULL and 7280 for CFB and OFB modes they zero ctx->num. 7281 7282 New functionality allows removal of S/MIME code RC2 hack. 7283 7284 Most of the routines have the same form and so can be declared in terms 7285 of macros. 7286 7287 By shifting this to the top level EVP_CipherInit() it can be removed from 7288 all individual ciphers. If the cipher wants to handle IVs or keys 7289 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT 7290 flags. 7291 7292 Change lots of functions like EVP_EncryptUpdate() to now return a 7293 value: although software versions of the algorithms cannot fail 7294 any installed hardware versions can. 7295 [Steve Henson] 7296 7297 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if 7298 this option is set, tolerate broken clients that send the negotiated 7299 protocol version number instead of the requested protocol version 7300 number. 7301 [Bodo Moeller] 7302 7303 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag; 7304 i.e. non-zero for export ciphersuites, zero otherwise. 7305 Previous versions had this flag inverted, inconsistent with 7306 rsa_tmp_cb (..._TMP_RSA_CB). 7307 [Bodo Moeller; problem reported by Amit Chopra] 7308 7309 *) Add missing DSA library text string. Work around for some IIS 7310 key files with invalid SEQUENCE encoding. 7311 [Steve Henson] 7312 7313 *) Add a document (doc/standards.txt) that list all kinds of standards 7314 and so on that are implemented in OpenSSL. 7315 [Richard Levitte] 7316 7317 *) Enhance c_rehash script. Old version would mishandle certificates 7318 with the same subject name hash and wouldn't handle CRLs at all. 7319 Added -fingerprint option to crl utility, to support new c_rehash 7320 features. 7321 [Steve Henson] 7322 7323 *) Eliminate non-ANSI declarations in crypto.h and stack.h. 7324 [Ulf M�ller] 7325 7326 *) Fix for SSL server purpose checking. Server checking was 7327 rejecting certificates which had extended key usage present 7328 but no ssl client purpose. 7329 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>] 7330 7331 *) Make PKCS#12 code work with no password. The PKCS#12 spec 7332 is a little unclear about how a blank password is handled. 7333 Since the password in encoded as a BMPString with terminating 7334 double NULL a zero length password would end up as just the 7335 double NULL. However no password at all is different and is 7336 handled differently in the PKCS#12 key generation code. NS 7337 treats a blank password as zero length. MSIE treats it as no 7338 password on export: but it will try both on import. We now do 7339 the same: PKCS12_parse() tries zero length and no password if 7340 the password is set to "" or NULL (NULL is now a valid password: 7341 it wasn't before) as does the pkcs12 application. 7342 [Steve Henson] 7343 7344 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use 7345 perror when PEM_read_bio_X509_REQ fails, the error message must 7346 be obtained from the error queue. 7347 [Bodo Moeller] 7348 7349 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing 7350 it in ERR_remove_state if appropriate, and change ERR_get_state 7351 accordingly to avoid race conditions (this is necessary because 7352 thread_hash is no longer constant once set). 7353 [Bodo Moeller] 7354 7355 *) Bugfix for linux-elf makefile.one. 7356 [Ulf M�ller] 7357 7358 *) RSA_get_default_method() will now cause a default 7359 RSA_METHOD to be chosen if one doesn't exist already. 7360 Previously this was only set during a call to RSA_new() 7361 or RSA_new_method(NULL) meaning it was possible for 7362 RSA_get_default_method() to return NULL. 7363 [Geoff Thorpe] 7364 7365 *) Added native name translation to the existing DSO code 7366 that will convert (if the flag to do so is set) filenames 7367 that are sufficiently small and have no path information 7368 into a canonical native form. Eg. "blah" converted to 7369 "libblah.so" or "blah.dll" etc. 7370 [Geoff Thorpe] 7371 7372 *) New function ERR_error_string_n(e, buf, len) which is like 7373 ERR_error_string(e, buf), but writes at most 'len' bytes 7374 including the 0 terminator. For ERR_error_string_n, 'buf' 7375 may not be NULL. 7376 [Damien Miller <djm@mindrot.org>, Bodo Moeller] 7377 7378 *) CONF library reworked to become more general. A new CONF 7379 configuration file reader "class" is implemented as well as a 7380 new functions (NCONF_*, for "New CONF") to handle it. The now 7381 old CONF_* functions are still there, but are reimplemented to 7382 work in terms of the new functions. Also, a set of functions 7383 to handle the internal storage of the configuration data is 7384 provided to make it easier to write new configuration file 7385 reader "classes" (I can definitely see something reading a 7386 configuration file in XML format, for example), called _CONF_*, 7387 or "the configuration storage API"... 7388 7389 The new configuration file reading functions are: 7390 7391 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio, 7392 NCONF_get_section, NCONF_get_string, NCONF_get_numbre 7393 7394 NCONF_default, NCONF_WIN32 7395 7396 NCONF_dump_fp, NCONF_dump_bio 7397 7398 NCONF_default and NCONF_WIN32 are method (or "class") choosers, 7399 NCONF_new creates a new CONF object. This works in the same way 7400 as other interfaces in OpenSSL, like the BIO interface. 7401 NCONF_dump_* dump the internal storage of the configuration file, 7402 which is useful for debugging. All other functions take the same 7403 arguments as the old CONF_* functions wth the exception of the 7404 first that must be a `CONF *' instead of a `LHASH *'. 7405 7406 To make it easer to use the new classes with the old CONF_* functions, 7407 the function CONF_set_default_method is provided. 7408 [Richard Levitte] 7409 7410 *) Add '-tls1' option to 'openssl ciphers', which was already 7411 mentioned in the documentation but had not been implemented. 7412 (This option is not yet really useful because even the additional 7413 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.) 7414 [Bodo Moeller] 7415 7416 *) Initial DSO code added into libcrypto for letting OpenSSL (and 7417 OpenSSL-based applications) load shared libraries and bind to 7418 them in a portable way. 7419 [Geoff Thorpe, with contributions from Richard Levitte] 7420 7421 Changes between 0.9.5 and 0.9.5a [1 Apr 2000] 7422 7423 *) Make sure _lrotl and _lrotr are only used with MSVC. 7424 7425 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status 7426 (the default implementation of RAND_status). 7427 7428 *) Rename openssl x509 option '-crlext', which was added in 0.9.5, 7429 to '-clrext' (= clear extensions), as intended and documented. 7430 [Bodo Moeller; inconsistency pointed out by Michael Attili 7431 <attili@amaxo.com>] 7432 7433 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length 7434 was larger than the MD block size. 7435 [Steve Henson, pointed out by Yost William <YostW@tce.com>] 7436 7437 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument 7438 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set() 7439 using the passed key: if the passed key was a private key the result 7440 of X509_print(), for example, would be to print out all the private key 7441 components. 7442 [Steve Henson] 7443 7444 *) des_quad_cksum() byte order bug fix. 7445 [Ulf M�ller, using the problem description in krb4-0.9.7, where 7446 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>] 7447 7448 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly 7449 discouraged. 7450 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>] 7451 7452 *) For easily testing in shell scripts whether some command 7453 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX' 7454 returns with exit code 0 iff no command of the given name is available. 7455 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases, 7456 the output goes to stdout and nothing is printed to stderr. 7457 Additional arguments are always ignored. 7458 7459 Since for each cipher there is a command of the same name, 7460 the 'no-cipher' compilation switches can be tested this way. 7461 7462 ('openssl no-XXX' is not able to detect pseudo-commands such 7463 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.) 7464 [Bodo Moeller] 7465 7466 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration. 7467 [Bodo Moeller] 7468 7469 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE 7470 is set; it will be thrown away anyway because each handshake creates 7471 its own key. 7472 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition 7473 to parameters -- in previous versions (since OpenSSL 0.9.3) the 7474 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining 7475 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro. 7476 [Bodo Moeller] 7477 7478 *) New s_client option -ign_eof: EOF at stdin is ignored, and 7479 'Q' and 'R' lose their special meanings (quit/renegotiate). 7480 This is part of what -quiet does; unlike -quiet, -ign_eof 7481 does not suppress any output. 7482 [Richard Levitte] 7483 7484 *) Add compatibility options to the purpose and trust code. The 7485 purpose X509_PURPOSE_ANY is "any purpose" which automatically 7486 accepts a certificate or CA, this was the previous behaviour, 7487 with all the associated security issues. 7488 7489 X509_TRUST_COMPAT is the old trust behaviour: only and 7490 automatically trust self signed roots in certificate store. A 7491 new trust setting X509_TRUST_DEFAULT is used to specify that 7492 a purpose has no associated trust setting and it should instead 7493 use the value in the default purpose. 7494 [Steve Henson] 7495 7496 *) Fix the PKCS#8 DSA private key code so it decodes keys again 7497 and fix a memory leak. 7498 [Steve Henson] 7499 7500 *) In util/mkerr.pl (which implements 'make errors'), preserve 7501 reason strings from the previous version of the .c file, as 7502 the default to have only downcase letters (and digits) in 7503 automatically generated reasons codes is not always appropriate. 7504 [Bodo Moeller] 7505 7506 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table 7507 using strerror. Previously, ERR_reason_error_string() returned 7508 library names as reason strings for SYSerr; but SYSerr is a special 7509 case where small numbers are errno values, not library numbers. 7510 [Bodo Moeller] 7511 7512 *) Add '-dsaparam' option to 'openssl dhparam' application. This 7513 converts DSA parameters into DH parameters. (When creating parameters, 7514 DSA_generate_parameters is used.) 7515 [Bodo Moeller] 7516 7517 *) Include 'length' (recommended exponent length) in C code generated 7518 by 'openssl dhparam -C'. 7519 [Bodo Moeller] 7520 7521 *) The second argument to set_label in perlasm was already being used 7522 so couldn't be used as a "file scope" flag. Moved to third argument 7523 which was free. 7524 [Steve Henson] 7525 7526 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes 7527 instead of RAND_bytes for encryption IVs and salts. 7528 [Bodo Moeller] 7529 7530 *) Include RAND_status() into RAND_METHOD instead of implementing 7531 it only for md_rand.c Otherwise replacing the PRNG by calling 7532 RAND_set_rand_method would be impossible. 7533 [Bodo Moeller] 7534 7535 *) Don't let DSA_generate_key() enter an infinite loop if the random 7536 number generation fails. 7537 [Bodo Moeller] 7538 7539 *) New 'rand' application for creating pseudo-random output. 7540 [Bodo Moeller] 7541 7542 *) Added configuration support for Linux/IA64 7543 [Rolf Haberrecker <rolf@suse.de>] 7544 7545 *) Assembler module support for Mingw32. 7546 [Ulf M�ller] 7547 7548 *) Shared library support for HPUX (in shlib/). 7549 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous] 7550 7551 *) Shared library support for Solaris gcc. 7552 [Lutz Behnke <behnke@trustcenter.de>] 7553 7554 Changes between 0.9.4 and 0.9.5 [28 Feb 2000] 7555 7556 *) PKCS7_encrypt() was adding text MIME headers twice because they 7557 were added manually and by SMIME_crlf_copy(). 7558 [Steve Henson] 7559 7560 *) In bntest.c don't call BN_rand with zero bits argument. 7561 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>] 7562 7563 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n] 7564 case was implemented. This caused BN_div_recp() to fail occasionally. 7565 [Ulf M�ller] 7566 7567 *) Add an optional second argument to the set_label() in the perl 7568 assembly language builder. If this argument exists and is set 7569 to 1 it signals that the assembler should use a symbol whose 7570 scope is the entire file, not just the current function. This 7571 is needed with MASM which uses the format label:: for this scope. 7572 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>] 7573 7574 *) Change the ASN1 types so they are typedefs by default. Before 7575 almost all types were #define'd to ASN1_STRING which was causing 7576 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING) 7577 for example. 7578 [Steve Henson] 7579 7580 *) Change names of new functions to the new get1/get0 naming 7581 convention: After 'get1', the caller owns a reference count 7582 and has to call ..._free; 'get0' returns a pointer to some 7583 data structure without incrementing reference counters. 7584 (Some of the existing 'get' functions increment a reference 7585 counter, some don't.) 7586 Similarly, 'set1' and 'add1' functions increase reference 7587 counters or duplicate objects. 7588 [Steve Henson] 7589 7590 *) Allow for the possibility of temp RSA key generation failure: 7591 the code used to assume it always worked and crashed on failure. 7592 [Steve Henson] 7593 7594 *) Fix potential buffer overrun problem in BIO_printf(). 7595 [Ulf M�ller, using public domain code by Patrick Powell; problem 7596 pointed out by David Sacerdote <das33@cornell.edu>] 7597 7598 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions 7599 RAND_egd() and RAND_status(). In the command line application, 7600 the EGD socket can be specified like a seed file using RANDFILE 7601 or -rand. 7602 [Ulf M�ller] 7603 7604 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures. 7605 Some CAs (e.g. Verisign) distribute certificates in this form. 7606 [Steve Henson] 7607 7608 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher 7609 list to exclude them. This means that no special compilation option 7610 is needed to use anonymous DH: it just needs to be included in the 7611 cipher list. 7612 [Steve Henson] 7613 7614 *) Change the EVP_MD_CTX_type macro so its meaning consistent with 7615 EVP_MD_type. The old functionality is available in a new macro called 7616 EVP_MD_md(). Change code that uses it and update docs. 7617 [Steve Henson] 7618 7619 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions 7620 where the 'void *' argument is replaced by a function pointer argument. 7621 Previously 'void *' was abused to point to functions, which works on 7622 many platforms, but is not correct. As these functions are usually 7623 called by macros defined in OpenSSL header files, most source code 7624 should work without changes. 7625 [Richard Levitte] 7626 7627 *) <openssl/opensslconf.h> (which is created by Configure) now contains 7628 sections with information on -D... compiler switches used for 7629 compiling the library so that applications can see them. To enable 7630 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES 7631 must be defined. E.g., 7632 #define OPENSSL_ALGORITHM_DEFINES 7633 #include <openssl/opensslconf.h> 7634 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc. 7635 [Richard Levitte, Ulf and Bodo M�ller] 7636 7637 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS 7638 record layer. 7639 [Bodo Moeller] 7640 7641 *) Change the 'other' type in certificate aux info to a STACK_OF 7642 X509_ALGOR. Although not an AlgorithmIdentifier as such it has 7643 the required ASN1 format: arbitrary types determined by an OID. 7644 [Steve Henson] 7645 7646 *) Add some PEM_write_X509_REQ_NEW() functions and a command line 7647 argument to 'req'. This is not because the function is newer or 7648 better than others it just uses the work 'NEW' in the certificate 7649 request header lines. Some software needs this. 7650 [Steve Henson] 7651 7652 *) Reorganise password command line arguments: now passwords can be 7653 obtained from various sources. Delete the PEM_cb function and make 7654 it the default behaviour: i.e. if the callback is NULL and the 7655 usrdata argument is not NULL interpret it as a null terminated pass 7656 phrase. If usrdata and the callback are NULL then the pass phrase 7657 is prompted for as usual. 7658 [Steve Henson] 7659 7660 *) Add support for the Compaq Atalla crypto accelerator. If it is installed, 7661 the support is automatically enabled. The resulting binaries will 7662 autodetect the card and use it if present. 7663 [Ben Laurie and Compaq Inc.] 7664 7665 *) Work around for Netscape hang bug. This sends certificate request 7666 and server done in one record. Since this is perfectly legal in the 7667 SSL/TLS protocol it isn't a "bug" option and is on by default. See 7668 the bugs/SSLv3 entry for more info. 7669 [Steve Henson] 7670 7671 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround. 7672 [Andy Polyakov] 7673 7674 *) Add -rand argument to smime and pkcs12 applications and read/write 7675 of seed file. 7676 [Steve Henson] 7677 7678 *) New 'passwd' tool for crypt(3) and apr1 password hashes. 7679 [Bodo Moeller] 7680 7681 *) Add command line password options to the remaining applications. 7682 [Steve Henson] 7683 7684 *) Bug fix for BN_div_recp() for numerators with an even number of 7685 bits. 7686 [Ulf M�ller] 7687 7688 *) More tests in bntest.c, and changed test_bn output. 7689 [Ulf M�ller] 7690 7691 *) ./config recognizes MacOS X now. 7692 [Andy Polyakov] 7693 7694 *) Bug fix for BN_div() when the first words of num and divsor are 7695 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0). 7696 [Ulf M�ller] 7697 7698 *) Add support for various broken PKCS#8 formats, and command line 7699 options to produce them. 7700 [Steve Henson] 7701 7702 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to 7703 get temporary BIGNUMs from a BN_CTX. 7704 [Ulf M�ller] 7705 7706 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont() 7707 for p == 0. 7708 [Ulf M�ller] 7709 7710 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and 7711 include a #define from the old name to the new. The original intent 7712 was that statically linked binaries could for example just call 7713 SSLeay_add_all_ciphers() to just add ciphers to the table and not 7714 link with digests. This never worked becayse SSLeay_add_all_digests() 7715 and SSLeay_add_all_ciphers() were in the same source file so calling 7716 one would link with the other. They are now in separate source files. 7717 [Steve Henson] 7718 7719 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'. 7720 [Steve Henson] 7721 7722 *) Use a less unusual form of the Miller-Rabin primality test (it used 7723 a binary algorithm for exponentiation integrated into the Miller-Rabin 7724 loop, our standard modexp algorithms are faster). 7725 [Bodo Moeller] 7726 7727 *) Support for the EBCDIC character set completed. 7728 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>] 7729 7730 *) Source code cleanups: use const where appropriate, eliminate casts, 7731 use void * instead of char * in lhash. 7732 [Ulf M�ller] 7733 7734 *) Bugfix: ssl3_send_server_key_exchange was not restartable 7735 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of 7736 this the server could overwrite ephemeral keys that the client 7737 has already seen). 7738 [Bodo Moeller] 7739 7740 *) Turn DSA_is_prime into a macro that calls BN_is_prime, 7741 using 50 iterations of the Rabin-Miller test. 7742 7743 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50 7744 iterations of the Rabin-Miller test as required by the appendix 7745 to FIPS PUB 186[-1]) instead of DSA_is_prime. 7746 As BN_is_prime_fasttest includes trial division, DSA parameter 7747 generation becomes much faster. 7748 7749 This implies a change for the callback functions in DSA_is_prime 7750 and DSA_generate_parameters: The callback function is called once 7751 for each positive witness in the Rabin-Miller test, not just 7752 occasionally in the inner loop; and the parameters to the 7753 callback function now provide an iteration count for the outer 7754 loop rather than for the current invocation of the inner loop. 7755 DSA_generate_parameters additionally can call the callback 7756 function with an 'iteration count' of -1, meaning that a 7757 candidate has passed the trial division test (when q is generated 7758 from an application-provided seed, trial division is skipped). 7759 [Bodo Moeller] 7760 7761 *) New function BN_is_prime_fasttest that optionally does trial 7762 division before starting the Rabin-Miller test and has 7763 an additional BN_CTX * argument (whereas BN_is_prime always 7764 has to allocate at least one BN_CTX). 7765 'callback(1, -1, cb_arg)' is called when a number has passed the 7766 trial division stage. 7767 [Bodo Moeller] 7768 7769 *) Fix for bug in CRL encoding. The validity dates weren't being handled 7770 as ASN1_TIME. 7771 [Steve Henson] 7772 7773 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file. 7774 [Steve Henson] 7775 7776 *) New function BN_pseudo_rand(). 7777 [Ulf M�ller] 7778 7779 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable) 7780 bignum version of BN_from_montgomery() with the working code from 7781 SSLeay 0.9.0 (the word based version is faster anyway), and clean up 7782 the comments. 7783 [Ulf M�ller] 7784 7785 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that 7786 made it impossible to use the same SSL_SESSION data structure in 7787 SSL2 clients in multiple threads. 7788 [Bodo Moeller] 7789 7790 *) The return value of RAND_load_file() no longer counts bytes obtained 7791 by stat(). RAND_load_file(..., -1) is new and uses the complete file 7792 to seed the PRNG (previously an explicit byte count was required). 7793 [Ulf M�ller, Bodo M�ller] 7794 7795 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes 7796 used (char *) instead of (void *) and had casts all over the place. 7797 [Steve Henson] 7798 7799 *) Make BN_generate_prime() return NULL on error if ret!=NULL. 7800 [Ulf M�ller] 7801 7802 *) Retain source code compatibility for BN_prime_checks macro: 7803 BN_is_prime(..., BN_prime_checks, ...) now uses 7804 BN_prime_checks_for_size to determine the appropriate number of 7805 Rabin-Miller iterations. 7806 [Ulf M�ller] 7807 7808 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to 7809 DH_CHECK_P_NOT_SAFE_PRIME. 7810 (Check if this is true? OpenPGP calls them "strong".) 7811 [Ulf M�ller] 7812 7813 *) Merge the functionality of "dh" and "gendh" programs into a new program 7814 "dhparam". The old programs are retained for now but will handle DH keys 7815 (instead of parameters) in future. 7816 [Steve Henson] 7817 7818 *) Make the ciphers, s_server and s_client programs check the return values 7819 when a new cipher list is set. 7820 [Steve Henson] 7821 7822 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit 7823 ciphers. Before when the 56bit ciphers were enabled the sorting was 7824 wrong. 7825 7826 The syntax for the cipher sorting has been extended to support sorting by 7827 cipher-strength (using the strength_bits hard coded in the tables). 7828 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod). 7829 7830 Fix a bug in the cipher-command parser: when supplying a cipher command 7831 string with an "undefined" symbol (neither command nor alphanumeric 7832 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now 7833 an error is flagged. 7834 7835 Due to the strength-sorting extension, the code of the 7836 ssl_create_cipher_list() function was completely rearranged. I hope that 7837 the readability was also increased :-) 7838 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>] 7839 7840 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1 7841 for the first serial number and places 2 in the serial number file. This 7842 avoids problems when the root CA is created with serial number zero and 7843 the first user certificate has the same issuer name and serial number 7844 as the root CA. 7845 [Steve Henson] 7846 7847 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses 7848 the new code. Add documentation for this stuff. 7849 [Steve Henson] 7850 7851 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from 7852 X509_*() to X509at_*() on the grounds that they don't handle X509 7853 structures and behave in an analagous way to the X509v3 functions: 7854 they shouldn't be called directly but wrapper functions should be used 7855 instead. 7856 7857 So we also now have some wrapper functions that call the X509at functions 7858 when passed certificate requests. (TO DO: similar things can be done with 7859 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other 7860 things. Some of these need some d2i or i2d and print functionality 7861 because they handle more complex structures.) 7862 [Steve Henson] 7863 7864 *) Add missing #ifndefs that caused missing symbols when building libssl 7865 as a shared library without RSA. Use #ifndef NO_SSL2 instead of 7866 NO_RSA in ssl/s2*.c. 7867 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf M�ller] 7868 7869 *) Precautions against using the PRNG uninitialized: RAND_bytes() now 7870 has a return value which indicates the quality of the random data 7871 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's 7872 error queue. New function RAND_pseudo_bytes() generates output that is 7873 guaranteed to be unique but not unpredictable. RAND_add is like 7874 RAND_seed, but takes an extra argument for an entropy estimate 7875 (RAND_seed always assumes full entropy). 7876 [Ulf M�ller] 7877 7878 *) Do more iterations of Rabin-Miller probable prime test (specifically, 7879 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes 7880 instead of only 2 for all lengths; see BN_prime_checks_for_size definition 7881 in crypto/bn/bn_prime.c for the complete table). This guarantees a 7882 false-positive rate of at most 2^-80 for random input. 7883 [Bodo Moeller] 7884 7885 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs. 7886 [Bodo Moeller] 7887 7888 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain 7889 in the 0.9.5 release), this returns the chain 7890 from an X509_CTX structure with a dup of the stack and all 7891 the X509 reference counts upped: so the stack will exist 7892 after X509_CTX_cleanup() has been called. Modify pkcs12.c 7893 to use this. 7894 7895 Also make SSL_SESSION_print() print out the verify return 7896 code. 7897 [Steve Henson] 7898 7899 *) Add manpage for the pkcs12 command. Also change the default 7900 behaviour so MAC iteration counts are used unless the new 7901 -nomaciter option is used. This improves file security and 7902 only older versions of MSIE (4.0 for example) need it. 7903 [Steve Henson] 7904 7905 *) Honor the no-xxx Configure options when creating .DEF files. 7906 [Ulf M�ller] 7907 7908 *) Add PKCS#10 attributes to field table: challengePassword, 7909 unstructuredName and unstructuredAddress. These are taken from 7910 draft PKCS#9 v2.0 but are compatible with v1.2 provided no 7911 international characters are used. 7912 7913 More changes to X509_ATTRIBUTE code: allow the setting of types 7914 based on strings. Remove the 'loc' parameter when adding 7915 attributes because these will be a SET OF encoding which is sorted 7916 in ASN1 order. 7917 [Steve Henson] 7918 7919 *) Initial changes to the 'req' utility to allow request generation 7920 automation. This will allow an application to just generate a template 7921 file containing all the field values and have req construct the 7922 request. 7923 7924 Initial support for X509_ATTRIBUTE handling. Stacks of these are 7925 used all over the place including certificate requests and PKCS#7 7926 structures. They are currently handled manually where necessary with 7927 some primitive wrappers for PKCS#7. The new functions behave in a 7928 manner analogous to the X509 extension functions: they allow 7929 attributes to be looked up by NID and added. 7930 7931 Later something similar to the X509V3 code would be desirable to 7932 automatically handle the encoding, decoding and printing of the 7933 more complex types. The string types like challengePassword can 7934 be handled by the string table functions. 7935 7936 Also modified the multi byte string table handling. Now there is 7937 a 'global mask' which masks out certain types. The table itself 7938 can use the flag STABLE_NO_MASK to ignore the mask setting: this 7939 is useful when for example there is only one permissible type 7940 (as in countryName) and using the mask might result in no valid 7941 types at all. 7942 [Steve Henson] 7943 7944 *) Clean up 'Finished' handling, and add functions SSL_get_finished and 7945 SSL_get_peer_finished to allow applications to obtain the latest 7946 Finished messages sent to the peer or expected from the peer, 7947 respectively. (SSL_get_peer_finished is usually the Finished message 7948 actually received from the peer, otherwise the protocol will be aborted.) 7949 7950 As the Finished message are message digests of the complete handshake 7951 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can 7952 be used for external authentication procedures when the authentication 7953 provided by SSL/TLS is not desired or is not enough. 7954 [Bodo Moeller] 7955 7956 *) Enhanced support for Alpha Linux is added. Now ./config checks if 7957 the host supports BWX extension and if Compaq C is present on the 7958 $PATH. Just exploiting of the BWX extension results in 20-30% 7959 performance kick for some algorithms, e.g. DES and RC4 to mention 7960 a couple. Compaq C in turn generates ~20% faster code for MD5 and 7961 SHA1. 7962 [Andy Polyakov] 7963 7964 *) Add support for MS "fast SGC". This is arguably a violation of the 7965 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with 7966 weak crypto and after checking the certificate is SGC a second one 7967 with strong crypto. MS SGC stops the first handshake after receiving 7968 the server certificate message and sends a second client hello. Since 7969 a server will typically do all the time consuming operations before 7970 expecting any further messages from the client (server key exchange 7971 is the most expensive) there is little difference between the two. 7972 7973 To get OpenSSL to support MS SGC we have to permit a second client 7974 hello message after we have sent server done. In addition we have to 7975 reset the MAC if we do get this second client hello. 7976 [Steve Henson] 7977 7978 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide 7979 if a DER encoded private key is RSA or DSA traditional format. Changed 7980 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional" 7981 format DER encoded private key. Newer code should use PKCS#8 format which 7982 has the key type encoded in the ASN1 structure. Added DER private key 7983 support to pkcs8 application. 7984 [Steve Henson] 7985 7986 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous 7987 ciphersuites has been selected (as required by the SSL 3/TLS 1 7988 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT 7989 is set, we interpret this as a request to violate the specification 7990 (the worst that can happen is a handshake failure, and 'correct' 7991 behaviour would result in a handshake failure anyway). 7992 [Bodo Moeller] 7993 7994 *) In SSL_CTX_add_session, take into account that there might be multiple 7995 SSL_SESSION structures with the same session ID (e.g. when two threads 7996 concurrently obtain them from an external cache). 7997 The internal cache can handle only one SSL_SESSION with a given ID, 7998 so if there's a conflict, we now throw out the old one to achieve 7999 consistency. 8000 [Bodo Moeller] 8001 8002 *) Add OIDs for idea and blowfish in CBC mode. This will allow both 8003 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to 8004 some routines that use cipher OIDs: some ciphers do not have OIDs 8005 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for 8006 example. 8007 [Steve Henson] 8008 8009 *) Simplify the trust setting structure and code. Now we just have 8010 two sequences of OIDs for trusted and rejected settings. These will 8011 typically have values the same as the extended key usage extension 8012 and any application specific purposes. 8013 8014 The trust checking code now has a default behaviour: it will just 8015 check for an object with the same NID as the passed id. Functions can 8016 be provided to override either the default behaviour or the behaviour 8017 for a given id. SSL client, server and email already have functions 8018 in place for compatibility: they check the NID and also return "trusted" 8019 if the certificate is self signed. 8020 [Steve Henson] 8021 8022 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the 8023 traditional format into an EVP_PKEY structure. 8024 [Steve Henson] 8025 8026 *) Add a password callback function PEM_cb() which either prompts for 8027 a password if usr_data is NULL or otherwise assumes it is a null 8028 terminated password. Allow passwords to be passed on command line 8029 environment or config files in a few more utilities. 8030 [Steve Henson] 8031 8032 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private 8033 keys. Add some short names for PKCS#8 PBE algorithms and allow them 8034 to be specified on the command line for the pkcs8 and pkcs12 utilities. 8035 Update documentation. 8036 [Steve Henson] 8037 8038 *) Support for ASN1 "NULL" type. This could be handled before by using 8039 ASN1_TYPE but there wasn't any function that would try to read a NULL 8040 and produce an error if it couldn't. For compatibility we also have 8041 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and 8042 don't allocate anything because they don't need to. 8043 [Steve Henson] 8044 8045 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS 8046 for details. 8047 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>] 8048 8049 *) Rebuild of the memory allocation routines used by OpenSSL code and 8050 possibly others as well. The purpose is to make an interface that 8051 provide hooks so anyone can build a separate set of allocation and 8052 deallocation routines to be used by OpenSSL, for example memory 8053 pool implementations, or something else, which was previously hard 8054 since Malloc(), Realloc() and Free() were defined as macros having 8055 the values malloc, realloc and free, respectively (except for Win32 8056 compilations). The same is provided for memory debugging code. 8057 OpenSSL already comes with functionality to find memory leaks, but 8058 this gives people a chance to debug other memory problems. 8059 8060 With these changes, a new set of functions and macros have appeared: 8061 8062 CRYPTO_set_mem_debug_functions() [F] 8063 CRYPTO_get_mem_debug_functions() [F] 8064 CRYPTO_dbg_set_options() [F] 8065 CRYPTO_dbg_get_options() [F] 8066 CRYPTO_malloc_debug_init() [M] 8067 8068 The memory debug functions are NULL by default, unless the library 8069 is compiled with CRYPTO_MDEBUG or friends is defined. If someone 8070 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which 8071 gives the standard debugging functions that come with OpenSSL) or 8072 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions 8073 provided by the library user) must be used. When the standard 8074 debugging functions are used, CRYPTO_dbg_set_options can be used to 8075 request additional information: 8076 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting 8077 the CRYPTO_MDEBUG_xxx macro when compiling the library. 8078 8079 Also, things like CRYPTO_set_mem_functions will always give the 8080 expected result (the new set of functions is used for allocation 8081 and deallocation) at all times, regardless of platform and compiler 8082 options. 8083 8084 To finish it up, some functions that were never use in any other 8085 way than through macros have a new API and new semantic: 8086 8087 CRYPTO_dbg_malloc() 8088 CRYPTO_dbg_realloc() 8089 CRYPTO_dbg_free() 8090 8091 All macros of value have retained their old syntax. 8092 [Richard Levitte and Bodo Moeller] 8093 8094 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the 8095 ordering of SMIMECapabilities wasn't in "strength order" and there 8096 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature 8097 algorithm. 8098 [Steve Henson] 8099 8100 *) Some ASN1 types with illegal zero length encoding (INTEGER, 8101 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines. 8102 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson] 8103 8104 *) Merge in my S/MIME library for OpenSSL. This provides a simple 8105 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough 8106 functionality to handle multipart/signed properly) and a utility 8107 called 'smime' to call all this stuff. This is based on code I 8108 originally wrote for Celo who have kindly allowed it to be 8109 included in OpenSSL. 8110 [Steve Henson] 8111 8112 *) Add variants des_set_key_checked and des_set_key_unchecked of 8113 des_set_key (aka des_key_sched). Global variable des_check_key 8114 decides which of these is called by des_set_key; this way 8115 des_check_key behaves as it always did, but applications and 8116 the library itself, which was buggy for des_check_key == 1, 8117 have a cleaner way to pick the version they need. 8118 [Bodo Moeller] 8119 8120 *) New function PKCS12_newpass() which changes the password of a 8121 PKCS12 structure. 8122 [Steve Henson] 8123 8124 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and 8125 dynamic mix. In both cases the ids can be used as an index into the 8126 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add() 8127 functions so they accept a list of the field values and the 8128 application doesn't need to directly manipulate the X509_TRUST 8129 structure. 8130 [Steve Henson] 8131 8132 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't 8133 need initialising. 8134 [Steve Henson] 8135 8136 *) Modify the way the V3 extension code looks up extensions. This now 8137 works in a similar way to the object code: we have some "standard" 8138 extensions in a static table which is searched with OBJ_bsearch() 8139 and the application can add dynamic ones if needed. The file 8140 crypto/x509v3/ext_dat.h now has the info: this file needs to be 8141 updated whenever a new extension is added to the core code and kept 8142 in ext_nid order. There is a simple program 'tabtest.c' which checks 8143 this. New extensions are not added too often so this file can readily 8144 be maintained manually. 8145 8146 There are two big advantages in doing things this way. The extensions 8147 can be looked up immediately and no longer need to be "added" using 8148 X509V3_add_standard_extensions(): this function now does nothing. 8149 [Side note: I get *lots* of email saying the extension code doesn't 8150 work because people forget to call this function] 8151 Also no dynamic allocation is done unless new extensions are added: 8152 so if we don't add custom extensions there is no need to call 8153 X509V3_EXT_cleanup(). 8154 [Steve Henson] 8155 8156 *) Modify enc utility's salting as follows: make salting the default. Add a 8157 magic header, so unsalted files fail gracefully instead of just decrypting 8158 to garbage. This is because not salting is a big security hole, so people 8159 should be discouraged from doing it. 8160 [Ben Laurie] 8161 8162 *) Fixes and enhancements to the 'x509' utility. It allowed a message 8163 digest to be passed on the command line but it only used this 8164 parameter when signing a certificate. Modified so all relevant 8165 operations are affected by the digest parameter including the 8166 -fingerprint and -x509toreq options. Also -x509toreq choked if a 8167 DSA key was used because it didn't fix the digest. 8168 [Steve Henson] 8169 8170 *) Initial certificate chain verify code. Currently tests the untrusted 8171 certificates for consistency with the verify purpose (which is set 8172 when the X509_STORE_CTX structure is set up) and checks the pathlength. 8173 8174 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour: 8175 this is because it will reject chains with invalid extensions whereas 8176 every previous version of OpenSSL and SSLeay made no checks at all. 8177 8178 Trust code: checks the root CA for the relevant trust settings. Trust 8179 settings have an initial value consistent with the verify purpose: e.g. 8180 if the verify purpose is for SSL client use it expects the CA to be 8181 trusted for SSL client use. However the default value can be changed to 8182 permit custom trust settings: one example of this would be to only trust 8183 certificates from a specific "secure" set of CAs. 8184 8185 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions 8186 which should be used for version portability: especially since the 8187 verify structure is likely to change more often now. 8188 8189 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions 8190 to set them. If not set then assume SSL clients will verify SSL servers 8191 and vice versa. 8192 8193 Two new options to the verify program: -untrusted allows a set of 8194 untrusted certificates to be passed in and -purpose which sets the 8195 intended purpose of the certificate. If a purpose is set then the 8196 new chain verify code is used to check extension consistency. 8197 [Steve Henson] 8198 8199 *) Support for the authority information access extension. 8200 [Steve Henson] 8201 8202 *) Modify RSA and DSA PEM read routines to transparently handle 8203 PKCS#8 format private keys. New *_PUBKEY_* functions that handle 8204 public keys in a format compatible with certificate 8205 SubjectPublicKeyInfo structures. Unfortunately there were already 8206 functions called *_PublicKey_* which used various odd formats so 8207 these are retained for compatibility: however the DSA variants were 8208 never in a public release so they have been deleted. Changed dsa/rsa 8209 utilities to handle the new format: note no releases ever handled public 8210 keys so we should be OK. 8211 8212 The primary motivation for this change is to avoid the same fiasco 8213 that dogs private keys: there are several incompatible private key 8214 formats some of which are standard and some OpenSSL specific and 8215 require various evil hacks to allow partial transparent handling and 8216 even then it doesn't work with DER formats. Given the option anything 8217 other than PKCS#8 should be dumped: but the other formats have to 8218 stay in the name of compatibility. 8219 8220 With public keys and the benefit of hindsight one standard format 8221 is used which works with EVP_PKEY, RSA or DSA structures: though 8222 it clearly returns an error if you try to read the wrong kind of key. 8223 8224 Added a -pubkey option to the 'x509' utility to output the public key. 8225 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*() 8226 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add 8227 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*()) 8228 that do the same as the EVP_PKEY_assign_*() except they up the 8229 reference count of the added key (they don't "swallow" the 8230 supplied key). 8231 [Steve Henson] 8232 8233 *) Fixes to crypto/x509/by_file.c the code to read in certificates and 8234 CRLs would fail if the file contained no certificates or no CRLs: 8235 added a new function to read in both types and return the number 8236 read: this means that if none are read it will be an error. The 8237 DER versions of the certificate and CRL reader would always fail 8238 because it isn't possible to mix certificates and CRLs in DER format 8239 without choking one or the other routine. Changed this to just read 8240 a certificate: this is the best we can do. Also modified the code 8241 in apps/verify.c to take notice of return codes: it was previously 8242 attempting to read in certificates from NULL pointers and ignoring 8243 any errors: this is one reason why the cert and CRL reader seemed 8244 to work. It doesn't check return codes from the default certificate 8245 routines: these may well fail if the certificates aren't installed. 8246 [Steve Henson] 8247 8248 *) Code to support otherName option in GeneralName. 8249 [Steve Henson] 8250 8251 *) First update to verify code. Change the verify utility 8252 so it warns if it is passed a self signed certificate: 8253 for consistency with the normal behaviour. X509_verify 8254 has been modified to it will now verify a self signed 8255 certificate if *exactly* the same certificate appears 8256 in the store: it was previously impossible to trust a 8257 single self signed certificate. This means that: 8258 openssl verify ss.pem 8259 now gives a warning about a self signed certificate but 8260 openssl verify -CAfile ss.pem ss.pem 8261 is OK. 8262 [Steve Henson] 8263 8264 *) For servers, store verify_result in SSL_SESSION data structure 8265 (and add it to external session representation). 8266 This is needed when client certificate verifications fails, 8267 but an application-provided verification callback (set by 8268 SSL_CTX_set_cert_verify_callback) allows accepting the session 8269 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK 8270 but returns 1): When the session is reused, we have to set 8271 ssl->verify_result to the appropriate error code to avoid 8272 security holes. 8273 [Bodo Moeller, problem pointed out by Lutz Jaenicke] 8274 8275 *) Fix a bug in the new PKCS#7 code: it didn't consider the 8276 case in PKCS7_dataInit() where the signed PKCS7 structure 8277 didn't contain any existing data because it was being created. 8278 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson] 8279 8280 *) Add a salt to the key derivation routines in enc.c. This 8281 forms the first 8 bytes of the encrypted file. Also add a 8282 -S option to allow a salt to be input on the command line. 8283 [Steve Henson] 8284 8285 *) New function X509_cmp(). Oddly enough there wasn't a function 8286 to compare two certificates. We do this by working out the SHA1 8287 hash and comparing that. X509_cmp() will be needed by the trust 8288 code. 8289 [Steve Henson] 8290 8291 *) SSL_get1_session() is like SSL_get_session(), but increments 8292 the reference count in the SSL_SESSION returned. 8293 [Geoff Thorpe <geoff@eu.c2.net>] 8294 8295 *) Fix for 'req': it was adding a null to request attributes. 8296 Also change the X509_LOOKUP and X509_INFO code to handle 8297 certificate auxiliary information. 8298 [Steve Henson] 8299 8300 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document 8301 the 'enc' command. 8302 [Steve Henson] 8303 8304 *) Add the possibility to add extra information to the memory leak 8305 detecting output, to form tracebacks, showing from where each 8306 allocation was originated: CRYPTO_push_info("constant string") adds 8307 the string plus current file name and line number to a per-thread 8308 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info() 8309 is like calling CYRPTO_pop_info() until the stack is empty. 8310 Also updated memory leak detection code to be multi-thread-safe. 8311 [Richard Levitte] 8312 8313 *) Add options -text and -noout to pkcs7 utility and delete the 8314 encryption options which never did anything. Update docs. 8315 [Steve Henson] 8316 8317 *) Add options to some of the utilities to allow the pass phrase 8318 to be included on either the command line (not recommended on 8319 OSes like Unix) or read from the environment. Update the 8320 manpages and fix a few bugs. 8321 [Steve Henson] 8322 8323 *) Add a few manpages for some of the openssl commands. 8324 [Steve Henson] 8325 8326 *) Fix the -revoke option in ca. It was freeing up memory twice, 8327 leaking and not finding already revoked certificates. 8328 [Steve Henson] 8329 8330 *) Extensive changes to support certificate auxiliary information. 8331 This involves the use of X509_CERT_AUX structure and X509_AUX 8332 functions. An X509_AUX function such as PEM_read_X509_AUX() 8333 can still read in a certificate file in the usual way but it 8334 will also read in any additional "auxiliary information". By 8335 doing things this way a fair degree of compatibility can be 8336 retained: existing certificates can have this information added 8337 using the new 'x509' options. 8338 8339 Current auxiliary information includes an "alias" and some trust 8340 settings. The trust settings will ultimately be used in enhanced 8341 certificate chain verification routines: currently a certificate 8342 can only be trusted if it is self signed and then it is trusted 8343 for all purposes. 8344 [Steve Henson] 8345 8346 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD). 8347 The problem was that one of the replacement routines had not been working 8348 since SSLeay releases. For now the offending routine has been replaced 8349 with non-optimised assembler. Even so, this now gives around 95% 8350 performance improvement for 1024 bit RSA signs. 8351 [Mark Cox] 8352 8353 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2 8354 handling. Most clients have the effective key size in bits equal to 8355 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key. 8356 A few however don't do this and instead use the size of the decrypted key 8357 to determine the RC2 key length and the AlgorithmIdentifier to determine 8358 the effective key length. In this case the effective key length can still 8359 be 40 bits but the key length can be 168 bits for example. This is fixed 8360 by manually forcing an RC2 key into the EVP_PKEY structure because the 8361 EVP code can't currently handle unusual RC2 key sizes: it always assumes 8362 the key length and effective key length are equal. 8363 [Steve Henson] 8364 8365 *) Add a bunch of functions that should simplify the creation of 8366 X509_NAME structures. Now you should be able to do: 8367 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0); 8368 and have it automatically work out the correct field type and fill in 8369 the structures. The more adventurous can try: 8370 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0); 8371 and it will (hopefully) work out the correct multibyte encoding. 8372 [Steve Henson] 8373 8374 *) Change the 'req' utility to use the new field handling and multibyte 8375 copy routines. Before the DN field creation was handled in an ad hoc 8376 way in req, ca, and x509 which was rather broken and didn't support 8377 BMPStrings or UTF8Strings. Since some software doesn't implement 8378 BMPStrings or UTF8Strings yet, they can be enabled using the config file 8379 using the dirstring_type option. See the new comment in the default 8380 openssl.cnf for more info. 8381 [Steve Henson] 8382 8383 *) Make crypto/rand/md_rand.c more robust: 8384 - Assure unique random numbers after fork(). 8385 - Make sure that concurrent threads access the global counter and 8386 md serializably so that we never lose entropy in them 8387 or use exactly the same state in multiple threads. 8388 Access to the large state is not always serializable because 8389 the additional locking could be a performance killer, and 8390 md should be large enough anyway. 8391 [Bodo Moeller] 8392 8393 *) New file apps/app_rand.c with commonly needed functionality 8394 for handling the random seed file. 8395 8396 Use the random seed file in some applications that previously did not: 8397 ca, 8398 dsaparam -genkey (which also ignored its '-rand' option), 8399 s_client, 8400 s_server, 8401 x509 (when signing). 8402 Except on systems with /dev/urandom, it is crucial to have a random 8403 seed file at least for key creation, DSA signing, and for DH exchanges; 8404 for RSA signatures we could do without one. 8405 8406 gendh and gendsa (unlike genrsa) used to read only the first byte 8407 of each file listed in the '-rand' option. The function as previously 8408 found in genrsa is now in app_rand.c and is used by all programs 8409 that support '-rand'. 8410 [Bodo Moeller] 8411 8412 *) In RAND_write_file, use mode 0600 for creating files; 8413 don't just chmod when it may be too late. 8414 [Bodo Moeller] 8415 8416 *) Report an error from X509_STORE_load_locations 8417 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed. 8418 [Bill Perry] 8419 8420 *) New function ASN1_mbstring_copy() this copies a string in either 8421 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format 8422 into an ASN1_STRING type. A mask of permissible types is passed 8423 and it chooses the "minimal" type to use or an error if not type 8424 is suitable. 8425 [Steve Henson] 8426 8427 *) Add function equivalents to the various macros in asn1.h. The old 8428 macros are retained with an M_ prefix. Code inside the library can 8429 use the M_ macros. External code (including the openssl utility) 8430 should *NOT* in order to be "shared library friendly". 8431 [Steve Henson] 8432 8433 *) Add various functions that can check a certificate's extensions 8434 to see if it usable for various purposes such as SSL client, 8435 server or S/MIME and CAs of these types. This is currently 8436 VERY EXPERIMENTAL but will ultimately be used for certificate chain 8437 verification. Also added a -purpose flag to x509 utility to 8438 print out all the purposes. 8439 [Steve Henson] 8440 8441 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated 8442 functions. 8443 [Steve Henson] 8444 8445 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search 8446 for, obtain and decode and extension and obtain its critical flag. 8447 This allows all the necessary extension code to be handled in a 8448 single function call. 8449 [Steve Henson] 8450 8451 *) RC4 tune-up featuring 30-40% performance improvement on most RISC 8452 platforms. See crypto/rc4/rc4_enc.c for further details. 8453 [Andy Polyakov] 8454 8455 *) New -noout option to asn1parse. This causes no output to be produced 8456 its main use is when combined with -strparse and -out to extract data 8457 from a file (which may not be in ASN.1 format). 8458 [Steve Henson] 8459 8460 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer 8461 when producing the local key id. 8462 [Richard Levitte <levitte@stacken.kth.se>] 8463 8464 *) New option -dhparam in s_server. This allows a DH parameter file to be 8465 stated explicitly. If it is not stated then it tries the first server 8466 certificate file. The previous behaviour hard coded the filename 8467 "server.pem". 8468 [Steve Henson] 8469 8470 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow 8471 a public key to be input or output. For example: 8472 openssl rsa -in key.pem -pubout -out pubkey.pem 8473 Also added necessary DSA public key functions to handle this. 8474 [Steve Henson] 8475 8476 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained 8477 in the message. This was handled by allowing 8478 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it. 8479 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>] 8480 8481 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null 8482 to the end of the strings whereas this didn't. This would cause problems 8483 if strings read with d2i_ASN1_bytes() were later modified. 8484 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>] 8485 8486 *) Fix for base64 decode bug. When a base64 bio reads only one line of 8487 data and it contains EOF it will end up returning an error. This is 8488 caused by input 46 bytes long. The cause is due to the way base64 8489 BIOs find the start of base64 encoded data. They do this by trying a 8490 trial decode on each line until they find one that works. When they 8491 do a flag is set and it starts again knowing it can pass all the 8492 data directly through the decoder. Unfortunately it doesn't reset 8493 the context it uses. This means that if EOF is reached an attempt 8494 is made to pass two EOFs through the context and this causes the 8495 resulting error. This can also cause other problems as well. As is 8496 usual with these problems it takes *ages* to find and the fix is 8497 trivial: move one line. 8498 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ] 8499 8500 *) Ugly workaround to get s_client and s_server working under Windows. The 8501 old code wouldn't work because it needed to select() on sockets and the 8502 tty (for keypresses and to see if data could be written). Win32 only 8503 supports select() on sockets so we select() with a 1s timeout on the 8504 sockets and then see if any characters are waiting to be read, if none 8505 are present then we retry, we also assume we can always write data to 8506 the tty. This isn't nice because the code then blocks until we've 8507 received a complete line of data and it is effectively polling the 8508 keyboard at 1s intervals: however it's quite a bit better than not 8509 working at all :-) A dedicated Windows application might handle this 8510 with an event loop for example. 8511 [Steve Henson] 8512 8513 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign 8514 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions 8515 will be called when RSA_sign() and RSA_verify() are used. This is useful 8516 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available. 8517 For this to work properly RSA_public_decrypt() and RSA_private_encrypt() 8518 should *not* be used: RSA_sign() and RSA_verify() must be used instead. 8519 This necessitated the support of an extra signature type NID_md5_sha1 8520 for SSL signatures and modifications to the SSL library to use it instead 8521 of calling RSA_public_decrypt() and RSA_private_encrypt(). 8522 [Steve Henson] 8523 8524 *) Add new -verify -CAfile and -CApath options to the crl program, these 8525 will lookup a CRL issuers certificate and verify the signature in a 8526 similar way to the verify program. Tidy up the crl program so it 8527 no longer accesses structures directly. Make the ASN1 CRL parsing a bit 8528 less strict. It will now permit CRL extensions even if it is not 8529 a V2 CRL: this will allow it to tolerate some broken CRLs. 8530 [Steve Henson] 8531 8532 *) Initialize all non-automatic variables each time one of the openssl 8533 sub-programs is started (this is necessary as they may be started 8534 multiple times from the "OpenSSL>" prompt). 8535 [Lennart Bang, Bodo Moeller] 8536 8537 *) Preliminary compilation option RSA_NULL which disables RSA crypto without 8538 removing all other RSA functionality (this is what NO_RSA does). This 8539 is so (for example) those in the US can disable those operations covered 8540 by the RSA patent while allowing storage and parsing of RSA keys and RSA 8541 key generation. 8542 [Steve Henson] 8543 8544 *) Non-copying interface to BIO pairs. 8545 (still largely untested) 8546 [Bodo Moeller] 8547 8548 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive 8549 ASCII string. This was handled independently in various places before. 8550 [Steve Henson] 8551 8552 *) New functions UTF8_getc() and UTF8_putc() that parse and generate 8553 UTF8 strings a character at a time. 8554 [Steve Henson] 8555 8556 *) Use client_version from client hello to select the protocol 8557 (s23_srvr.c) and for RSA client key exchange verification 8558 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications. 8559 [Bodo Moeller] 8560 8561 *) Add various utility functions to handle SPKACs, these were previously 8562 handled by poking round in the structure internals. Added new function 8563 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to 8564 print, verify and generate SPKACs. Based on an original idea from 8565 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified. 8566 [Steve Henson] 8567 8568 *) RIPEMD160 is operational on all platforms and is back in 'make test'. 8569 [Andy Polyakov] 8570 8571 *) Allow the config file extension section to be overwritten on the 8572 command line. Based on an original idea from Massimiliano Pala 8573 <madwolf@comune.modena.it>. The new option is called -extensions 8574 and can be applied to ca, req and x509. Also -reqexts to override 8575 the request extensions in req and -crlexts to override the crl extensions 8576 in ca. 8577 [Steve Henson] 8578 8579 *) Add new feature to the SPKAC handling in ca. Now you can include 8580 the same field multiple times by preceding it by "XXXX." for example: 8581 1.OU="Unit name 1" 8582 2.OU="Unit name 2" 8583 this is the same syntax as used in the req config file. 8584 [Steve Henson] 8585 8586 *) Allow certificate extensions to be added to certificate requests. These 8587 are specified in a 'req_extensions' option of the req section of the 8588 config file. They can be printed out with the -text option to req but 8589 are otherwise ignored at present. 8590 [Steve Henson] 8591 8592 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first 8593 data read consists of only the final block it would not decrypted because 8594 EVP_CipherUpdate() would correctly report zero bytes had been decrypted. 8595 A misplaced 'break' also meant the decrypted final block might not be 8596 copied until the next read. 8597 [Steve Henson] 8598 8599 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added 8600 a few extra parameters to the DH structure: these will be useful if 8601 for example we want the value of 'q' or implement X9.42 DH. 8602 [Steve Henson] 8603 8604 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and 8605 provides hooks that allow the default DSA functions or functions on a 8606 "per key" basis to be replaced. This allows hardware acceleration and 8607 hardware key storage to be handled without major modification to the 8608 library. Also added low level modexp hooks and CRYPTO_EX structure and 8609 associated functions. 8610 [Steve Henson] 8611 8612 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO 8613 as "read only": it can't be written to and the buffer it points to will 8614 not be freed. Reading from a read only BIO is much more efficient than 8615 a normal memory BIO. This was added because there are several times when 8616 an area of memory needs to be read from a BIO. The previous method was 8617 to create a memory BIO and write the data to it, this results in two 8618 copies of the data and an O(n^2) reading algorithm. There is a new 8619 function BIO_new_mem_buf() which creates a read only memory BIO from 8620 an area of memory. Also modified the PKCS#7 routines to use read only 8621 memory BIOs. 8622 [Steve Henson] 8623 8624 *) Bugfix: ssl23_get_client_hello did not work properly when called in 8625 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of 8626 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read, 8627 but a retry condition occured while trying to read the rest. 8628 [Bodo Moeller] 8629 8630 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as 8631 NID_pkcs7_encrypted by default: this was wrong since this should almost 8632 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle 8633 the encrypted data type: this is a more sensible place to put it and it 8634 allows the PKCS#12 code to be tidied up that duplicated this 8635 functionality. 8636 [Steve Henson] 8637 8638 *) Changed obj_dat.pl script so it takes its input and output files on 8639 the command line. This should avoid shell escape redirection problems 8640 under Win32. 8641 [Steve Henson] 8642 8643 *) Initial support for certificate extension requests, these are included 8644 in things like Xenroll certificate requests. Included functions to allow 8645 extensions to be obtained and added. 8646 [Steve Henson] 8647 8648 *) -crlf option to s_client and s_server for sending newlines as 8649 CRLF (as required by many protocols). 8650 [Bodo Moeller] 8651 8652 Changes between 0.9.3a and 0.9.4 [09 Aug 1999] 8653 8654 *) Install libRSAglue.a when OpenSSL is built with RSAref. 8655 [Ralf S. Engelschall] 8656 8657 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency. 8658 [Andrija Antonijevic <TheAntony2@bigfoot.com>] 8659 8660 *) Fix -startdate and -enddate (which was missing) arguments to 'ca' 8661 program. 8662 [Steve Henson] 8663 8664 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as 8665 DH parameters/keys (q is lost during that conversion, but the resulting 8666 DH parameters contain its length). 8667 8668 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is 8669 much faster than DH_generate_parameters (which creates parameters 8670 where p = 2*q + 1), and also the smaller q makes DH computations 8671 much more efficient (160-bit exponentiation instead of 1024-bit 8672 exponentiation); so this provides a convenient way to support DHE 8673 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of 8674 utter importance to use 8675 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 8676 or 8677 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 8678 when such DH parameters are used, because otherwise small subgroup 8679 attacks may become possible! 8680 [Bodo Moeller] 8681 8682 *) Avoid memory leak in i2d_DHparams. 8683 [Bodo Moeller] 8684 8685 *) Allow the -k option to be used more than once in the enc program: 8686 this allows the same encrypted message to be read by multiple recipients. 8687 [Steve Henson] 8688 8689 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts 8690 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then 8691 it will always use the numerical form of the OID, even if it has a short 8692 or long name. 8693 [Steve Henson] 8694 8695 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp 8696 method only got called if p,q,dmp1,dmq1,iqmp components were present, 8697 otherwise bn_mod_exp was called. In the case of hardware keys for example 8698 no private key components need be present and it might store extra data 8699 in the RSA structure, which cannot be accessed from bn_mod_exp. 8700 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for 8701 private key operations. 8702 [Steve Henson] 8703 8704 *) Added support for SPARC Linux. 8705 [Andy Polyakov] 8706 8707 *) pem_password_cb function type incompatibly changed from 8708 typedef int pem_password_cb(char *buf, int size, int rwflag); 8709 to 8710 ....(char *buf, int size, int rwflag, void *userdata); 8711 so that applications can pass data to their callbacks: 8712 The PEM[_ASN1]_{read,write}... functions and macros now take an 8713 additional void * argument, which is just handed through whenever 8714 the password callback is called. 8715 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller] 8716 8717 New function SSL_CTX_set_default_passwd_cb_userdata. 8718 8719 Compatibility note: As many C implementations push function arguments 8720 onto the stack in reverse order, the new library version is likely to 8721 interoperate with programs that have been compiled with the old 8722 pem_password_cb definition (PEM_whatever takes some data that 8723 happens to be on the stack as its last argument, and the callback 8724 just ignores this garbage); but there is no guarantee whatsoever that 8725 this will work. 8726 8727 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=... 8728 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused 8729 problems not only on Windows, but also on some Unix platforms. 8730 To avoid problematic command lines, these definitions are now in an 8731 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl 8732 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds). 8733 [Bodo Moeller] 8734 8735 *) MIPS III/IV assembler module is reimplemented. 8736 [Andy Polyakov] 8737 8738 *) More DES library cleanups: remove references to srand/rand and 8739 delete an unused file. 8740 [Ulf M�ller] 8741 8742 *) Add support for the the free Netwide assembler (NASM) under Win32, 8743 since not many people have MASM (ml) and it can be hard to obtain. 8744 This is currently experimental but it seems to work OK and pass all 8745 the tests. Check out INSTALL.W32 for info. 8746 [Steve Henson] 8747 8748 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections 8749 without temporary keys kept an extra copy of the server key, 8750 and connections with temporary keys did not free everything in case 8751 of an error. 8752 [Bodo Moeller] 8753 8754 *) New function RSA_check_key and new openssl rsa option -check 8755 for verifying the consistency of RSA keys. 8756 [Ulf Moeller, Bodo Moeller] 8757 8758 *) Various changes to make Win32 compile work: 8759 1. Casts to avoid "loss of data" warnings in p5_crpt2.c 8760 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned 8761 comparison" warnings. 8762 3. Add sk_<TYPE>_sort to DEF file generator and do make update. 8763 [Steve Henson] 8764 8765 *) Add a debugging option to PKCS#5 v2 key generation function: when 8766 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and 8767 derived keys are printed to stderr. 8768 [Steve Henson] 8769 8770 *) Copy the flags in ASN1_STRING_dup(). 8771 [Roman E. Pavlov <pre@mo.msk.ru>] 8772 8773 *) The x509 application mishandled signing requests containing DSA 8774 keys when the signing key was also DSA and the parameters didn't match. 8775 8776 It was supposed to omit the parameters when they matched the signing key: 8777 the verifying software was then supposed to automatically use the CA's 8778 parameters if they were absent from the end user certificate. 8779 8780 Omitting parameters is no longer recommended. The test was also 8781 the wrong way round! This was probably due to unusual behaviour in 8782 EVP_cmp_parameters() which returns 1 if the parameters match. 8783 This meant that parameters were omitted when they *didn't* match and 8784 the certificate was useless. Certificates signed with 'ca' didn't have 8785 this bug. 8786 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>] 8787 8788 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems. 8789 The interface is as follows: 8790 Applications can use 8791 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(), 8792 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop(); 8793 "off" is now the default. 8794 The library internally uses 8795 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(), 8796 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on() 8797 to disable memory-checking temporarily. 8798 8799 Some inconsistent states that previously were possible (and were 8800 even the default) are now avoided. 8801 8802 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time 8803 with each memory chunk allocated; this is occasionally more helpful 8804 than just having a counter. 8805 8806 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID. 8807 8808 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future 8809 extensions. 8810 [Bodo Moeller] 8811 8812 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX), 8813 which largely parallels "options", but is for changing API behaviour, 8814 whereas "options" are about protocol behaviour. 8815 Initial "mode" flags are: 8816 8817 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when 8818 a single record has been written. 8819 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write 8820 retries use the same buffer location. 8821 (But all of the contents must be 8822 copied!) 8823 [Bodo Moeller] 8824 8825 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options 8826 worked. 8827 8828 *) Fix problems with no-hmac etc. 8829 [Ulf M�ller, pointed out by Brian Wellington <bwelling@tislabs.com>] 8830 8831 *) New functions RSA_get_default_method(), RSA_set_method() and 8832 RSA_get_method(). These allows replacement of RSA_METHODs without having 8833 to mess around with the internals of an RSA structure. 8834 [Steve Henson] 8835 8836 *) Fix memory leaks in DSA_do_sign and DSA_is_prime. 8837 Also really enable memory leak checks in openssl.c and in some 8838 test programs. 8839 [Chad C. Mulligan, Bodo Moeller] 8840 8841 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess 8842 up the length of negative integers. This has now been simplified to just 8843 store the length when it is first determined and use it later, rather 8844 than trying to keep track of where data is copied and updating it to 8845 point to the end. 8846 [Steve Henson, reported by Brien Wheeler 8847 <bwheeler@authentica-security.com>] 8848 8849 *) Add a new function PKCS7_signatureVerify. This allows the verification 8850 of a PKCS#7 signature but with the signing certificate passed to the 8851 function itself. This contrasts with PKCS7_dataVerify which assumes the 8852 certificate is present in the PKCS#7 structure. This isn't always the 8853 case: certificates can be omitted from a PKCS#7 structure and be 8854 distributed by "out of band" means (such as a certificate database). 8855 [Steve Henson] 8856 8857 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the 8858 function prototypes in pem.h, also change util/mkdef.pl to add the 8859 necessary function names. 8860 [Steve Henson] 8861 8862 *) mk1mf.pl (used by Windows builds) did not properly read the 8863 options set by Configure in the top level Makefile, and Configure 8864 was not even able to write more than one option correctly. 8865 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended. 8866 [Bodo Moeller] 8867 8868 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config 8869 file to be loaded from a BIO or FILE pointer. The BIO version will 8870 for example allow memory BIOs to contain config info. 8871 [Steve Henson] 8872 8873 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS. 8874 Whoever hopes to achieve shared-library compatibility across versions 8875 must use this, not the compile-time macro. 8876 (Exercise 0.9.4: Which is the minimum library version required by 8877 such programs?) 8878 Note: All this applies only to multi-threaded programs, others don't 8879 need locks. 8880 [Bodo Moeller] 8881 8882 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests 8883 through a BIO pair triggered the default case, i.e. 8884 SSLerr(...,SSL_R_UNKNOWN_STATE). 8885 [Bodo Moeller] 8886 8887 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications 8888 can use the SSL library even if none of the specific BIOs is 8889 appropriate. 8890 [Bodo Moeller] 8891 8892 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value 8893 for the encoded length. 8894 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>] 8895 8896 *) Add initial documentation of the X509V3 functions. 8897 [Steve Henson] 8898 8899 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and 8900 PEM_write_bio_PKCS8PrivateKey() that are equivalent to 8901 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more 8902 secure PKCS#8 private key format with a high iteration count. 8903 [Steve Henson] 8904 8905 *) Fix determination of Perl interpreter: A perl or perl5 8906 _directory_ in $PATH was also accepted as the interpreter. 8907 [Ralf S. Engelschall] 8908 8909 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking 8910 wrong with it but it was very old and did things like calling 8911 PEM_ASN1_read() directly and used MD5 for the hash not to mention some 8912 unusual formatting. 8913 [Steve Henson] 8914 8915 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed 8916 to use the new extension code. 8917 [Steve Henson] 8918 8919 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c 8920 with macros. This should make it easier to change their form, add extra 8921 arguments etc. Fix a few PEM prototypes which didn't have cipher as a 8922 constant. 8923 [Steve Henson] 8924 8925 *) Add to configuration table a new entry that can specify an alternative 8926 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep, 8927 according to Mark Crispin <MRC@Panda.COM>. 8928 [Bodo Moeller] 8929 8930#if 0 8931 *) DES CBC did not update the IV. Weird. 8932 [Ben Laurie] 8933#else 8934 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does. 8935 Changing the behaviour of the former might break existing programs -- 8936 where IV updating is needed, des_ncbc_encrypt can be used. 8937#endif 8938 8939 *) When bntest is run from "make test" it drives bc to check its 8940 calculations, as well as internally checking them. If an internal check 8941 fails, it needs to cause bc to give a non-zero result or make test carries 8942 on without noticing the failure. Fixed. 8943 [Ben Laurie] 8944 8945 *) DES library cleanups. 8946 [Ulf M�ller] 8947 8948 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be 8949 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit 8950 ciphers. NOTE: although the key derivation function has been verified 8951 against some published test vectors it has not been extensively tested 8952 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use 8953 of v2.0. 8954 [Steve Henson] 8955 8956 *) Instead of "mkdir -p", which is not fully portable, use new 8957 Perl script "util/mkdir-p.pl". 8958 [Bodo Moeller] 8959 8960 *) Rewrite the way password based encryption (PBE) is handled. It used to 8961 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter 8962 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms 8963 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now 8964 the 'parameter' field of the AlgorithmIdentifier is passed to the 8965 underlying key generation function so it must do its own ASN1 parsing. 8966 This has also changed the EVP_PBE_CipherInit() function which now has a 8967 'parameter' argument instead of literal salt and iteration count values 8968 and the function EVP_PBE_ALGOR_CipherInit() has been deleted. 8969 [Steve Henson] 8970 8971 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms 8972 and PKCS#8 functionality. New 'pkcs8' application linked to openssl. 8973 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE 8974 KEY" because this clashed with PKCS#8 unencrypted string. Since this 8975 value was just used as a "magic string" and not used directly its 8976 value doesn't matter. 8977 [Steve Henson] 8978 8979 *) Introduce some semblance of const correctness to BN. Shame C doesn't 8980 support mutable. 8981 [Ben Laurie] 8982 8983 *) "linux-sparc64" configuration (ultrapenguin). 8984 [Ray Miller <ray.miller@oucs.ox.ac.uk>] 8985 "linux-sparc" configuration. 8986 [Christian Forster <fo@hawo.stw.uni-erlangen.de>] 8987 8988 *) config now generates no-xxx options for missing ciphers. 8989 [Ulf M�ller] 8990 8991 *) Support the EBCDIC character set (work in progress). 8992 File ebcdic.c not yet included because it has a different license. 8993 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] 8994 8995 *) Support BS2000/OSD-POSIX. 8996 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] 8997 8998 *) Make callbacks for key generation use void * instead of char *. 8999 [Ben Laurie] 9000 9001 *) Make S/MIME samples compile (not yet tested). 9002 [Ben Laurie] 9003 9004 *) Additional typesafe stacks. 9005 [Ben Laurie] 9006 9007 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x). 9008 [Bodo Moeller] 9009 9010 9011 Changes between 0.9.3 and 0.9.3a [29 May 1999] 9012 9013 *) New configuration variant "sco5-gcc". 9014 9015 *) Updated some demos. 9016 [Sean O Riordain, Wade Scholine] 9017 9018 *) Add missing BIO_free at exit of pkcs12 application. 9019 [Wu Zhigang] 9020 9021 *) Fix memory leak in conf.c. 9022 [Steve Henson] 9023 9024 *) Updates for Win32 to assembler version of MD5. 9025 [Steve Henson] 9026 9027 *) Set #! path to perl in apps/der_chop to where we found it 9028 instead of using a fixed path. 9029 [Bodo Moeller] 9030 9031 *) SHA library changes for irix64-mips4-cc. 9032 [Andy Polyakov] 9033 9034 *) Improvements for VMS support. 9035 [Richard Levitte] 9036 9037 9038 Changes between 0.9.2b and 0.9.3 [24 May 1999] 9039 9040 *) Bignum library bug fix. IRIX 6 passes "make test" now! 9041 This also avoids the problems with SC4.2 and unpatched SC5. 9042 [Andy Polyakov <appro@fy.chalmers.se>] 9043 9044 *) New functions sk_num, sk_value and sk_set to replace the previous macros. 9045 These are required because of the typesafe stack would otherwise break 9046 existing code. If old code used a structure member which used to be STACK 9047 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with 9048 sk_num or sk_value it would produce an error because the num, data members 9049 are not present in STACK_OF. Now it just produces a warning. sk_set 9050 replaces the old method of assigning a value to sk_value 9051 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code 9052 that does this will no longer work (and should use sk_set instead) but 9053 this could be regarded as a "questionable" behaviour anyway. 9054 [Steve Henson] 9055 9056 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now 9057 correctly handle encrypted S/MIME data. 9058 [Steve Henson] 9059 9060 *) Change type of various DES function arguments from des_cblock 9061 (which means, in function argument declarations, pointer to char) 9062 to des_cblock * (meaning pointer to array with 8 char elements), 9063 which allows the compiler to do more typechecking; it was like 9064 that back in SSLeay, but with lots of ugly casts. 9065 9066 Introduce new type const_des_cblock. 9067 [Bodo Moeller] 9068 9069 *) Reorganise the PKCS#7 library and get rid of some of the more obvious 9070 problems: find RecipientInfo structure that matches recipient certificate 9071 and initialise the ASN1 structures properly based on passed cipher. 9072 [Steve Henson] 9073 9074 *) Belatedly make the BN tests actually check the results. 9075 [Ben Laurie] 9076 9077 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion 9078 to and from BNs: it was completely broken. New compilation option 9079 NEG_PUBKEY_BUG to allow for some broken certificates that encode public 9080 key elements as negative integers. 9081 [Steve Henson] 9082 9083 *) Reorganize and speed up MD5. 9084 [Andy Polyakov <appro@fy.chalmers.se>] 9085 9086 *) VMS support. 9087 [Richard Levitte <richard@levitte.org>] 9088 9089 *) New option -out to asn1parse to allow the parsed structure to be 9090 output to a file. This is most useful when combined with the -strparse 9091 option to examine the output of things like OCTET STRINGS. 9092 [Steve Henson] 9093 9094 *) Make SSL library a little more fool-proof by not requiring any longer 9095 that SSL_set_{accept,connect}_state be called before 9096 SSL_{accept,connect} may be used (SSL_set_..._state is omitted 9097 in many applications because usually everything *appeared* to work as 9098 intended anyway -- now it really works as intended). 9099 [Bodo Moeller] 9100 9101 *) Move openssl.cnf out of lib/. 9102 [Ulf M�ller] 9103 9104 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall 9105 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes 9106 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+ 9107 [Ralf S. Engelschall] 9108 9109 *) Various fixes to the EVP and PKCS#7 code. It may now be able to 9110 handle PKCS#7 enveloped data properly. 9111 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve] 9112 9113 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of 9114 copying pointers. The cert_st handling is changed by this in 9115 various ways (and thus what used to be known as ctx->default_cert 9116 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert 9117 any longer when s->cert does not give us what we need). 9118 ssl_cert_instantiate becomes obsolete by this change. 9119 As soon as we've got the new code right (possibly it already is?), 9120 we have solved a couple of bugs of the earlier code where s->cert 9121 was used as if it could not have been shared with other SSL structures. 9122 9123 Note that using the SSL API in certain dirty ways now will result 9124 in different behaviour than observed with earlier library versions: 9125 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx) 9126 does not influence s as it used to. 9127 9128 In order to clean up things more thoroughly, inside SSL_SESSION 9129 we don't use CERT any longer, but a new structure SESS_CERT 9130 that holds per-session data (if available); currently, this is 9131 the peer's certificate chain and, for clients, the server's certificate 9132 and temporary key. CERT holds only those values that can have 9133 meaningful defaults in an SSL_CTX. 9134 [Bodo Moeller] 9135 9136 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure 9137 from the internal representation. Various PKCS#7 fixes: remove some 9138 evil casts and set the enc_dig_alg field properly based on the signing 9139 key type. 9140 [Steve Henson] 9141 9142 *) Allow PKCS#12 password to be set from the command line or the 9143 environment. Let 'ca' get its config file name from the environment 9144 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req' 9145 and 'x509'). 9146 [Steve Henson] 9147 9148 *) Allow certificate policies extension to use an IA5STRING for the 9149 organization field. This is contrary to the PKIX definition but 9150 VeriSign uses it and IE5 only recognises this form. Document 'x509' 9151 extension option. 9152 [Steve Henson] 9153 9154 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic, 9155 without disallowing inline assembler and the like for non-pedantic builds. 9156 [Ben Laurie] 9157 9158 *) Support Borland C++ builder. 9159 [Janez Jere <jj@void.si>, modified by Ulf M�ller] 9160 9161 *) Support Mingw32. 9162 [Ulf M�ller] 9163 9164 *) SHA-1 cleanups and performance enhancements. 9165 [Andy Polyakov <appro@fy.chalmers.se>] 9166 9167 *) Sparc v8plus assembler for the bignum library. 9168 [Andy Polyakov <appro@fy.chalmers.se>] 9169 9170 *) Accept any -xxx and +xxx compiler options in Configure. 9171 [Ulf M�ller] 9172 9173 *) Update HPUX configuration. 9174 [Anonymous] 9175 9176 *) Add missing sk_<type>_unshift() function to safestack.h 9177 [Ralf S. Engelschall] 9178 9179 *) New function SSL_CTX_use_certificate_chain_file that sets the 9180 "extra_cert"s in addition to the certificate. (This makes sense 9181 only for "PEM" format files, as chains as a whole are not 9182 DER-encoded.) 9183 [Bodo Moeller] 9184 9185 *) Support verify_depth from the SSL API. 9186 x509_vfy.c had what can be considered an off-by-one-error: 9187 Its depth (which was not part of the external interface) 9188 was actually counting the number of certificates in a chain; 9189 now it really counts the depth. 9190 [Bodo Moeller] 9191 9192 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used 9193 instead of X509err, which often resulted in confusing error 9194 messages since the error codes are not globally unique 9195 (e.g. an alleged error in ssl3_accept when a certificate 9196 didn't match the private key). 9197 9198 *) New function SSL_CTX_set_session_id_context that allows to set a default 9199 value (so that you don't need SSL_set_session_id_context for each 9200 connection using the SSL_CTX). 9201 [Bodo Moeller] 9202 9203 *) OAEP decoding bug fix. 9204 [Ulf M�ller] 9205 9206 *) Support INSTALL_PREFIX for package builders, as proposed by 9207 David Harris. 9208 [Bodo Moeller] 9209 9210 *) New Configure options "threads" and "no-threads". For systems 9211 where the proper compiler options are known (currently Solaris 9212 and Linux), "threads" is the default. 9213 [Bodo Moeller] 9214 9215 *) New script util/mklink.pl as a faster substitute for util/mklink.sh. 9216 [Bodo Moeller] 9217 9218 *) Install various scripts to $(OPENSSLDIR)/misc, not to 9219 $(INSTALLTOP)/bin -- they shouldn't clutter directories 9220 such as /usr/local/bin. 9221 [Bodo Moeller] 9222 9223 *) "make linux-shared" to build shared libraries. 9224 [Niels Poppe <niels@netbox.org>] 9225 9226 *) New Configure option no-<cipher> (rsa, idea, rc5, ...). 9227 [Ulf M�ller] 9228 9229 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for 9230 extension adding in x509 utility. 9231 [Steve Henson] 9232 9233 *) Remove NOPROTO sections and error code comments. 9234 [Ulf M�ller] 9235 9236 *) Partial rewrite of the DEF file generator to now parse the ANSI 9237 prototypes. 9238 [Steve Henson] 9239 9240 *) New Configure options --prefix=DIR and --openssldir=DIR. 9241 [Ulf M�ller] 9242 9243 *) Complete rewrite of the error code script(s). It is all now handled 9244 by one script at the top level which handles error code gathering, 9245 header rewriting and C source file generation. It should be much better 9246 than the old method: it now uses a modified version of Ulf's parser to 9247 read the ANSI prototypes in all header files (thus the old K&R definitions 9248 aren't needed for error creation any more) and do a better job of 9249 translating function codes into names. The old 'ASN1 error code imbedded 9250 in a comment' is no longer necessary and it doesn't use .err files which 9251 have now been deleted. Also the error code call doesn't have to appear all 9252 on one line (which resulted in some large lines...). 9253 [Steve Henson] 9254 9255 *) Change #include filenames from <foo.h> to <openssl/foo.h>. 9256 [Bodo Moeller] 9257 9258 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return 9259 0 (which usually indicates a closed connection), but continue reading. 9260 [Bodo Moeller] 9261 9262 *) Fix some race conditions. 9263 [Bodo Moeller] 9264 9265 *) Add support for CRL distribution points extension. Add Certificate 9266 Policies and CRL distribution points documentation. 9267 [Steve Henson] 9268 9269 *) Move the autogenerated header file parts to crypto/opensslconf.h. 9270 [Ulf M�ller] 9271 9272 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of 9273 8 of keying material. Merlin has also confirmed interop with this fix 9274 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0. 9275 [Merlin Hughes <merlin@baltimore.ie>] 9276 9277 *) Fix lots of warnings. 9278 [Richard Levitte <levitte@stacken.kth.se>] 9279 9280 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if 9281 the directory spec didn't end with a LIST_SEPARATOR_CHAR. 9282 [Richard Levitte <levitte@stacken.kth.se>] 9283 9284 *) Fix problems with sizeof(long) == 8. 9285 [Andy Polyakov <appro@fy.chalmers.se>] 9286 9287 *) Change functions to ANSI C. 9288 [Ulf M�ller] 9289 9290 *) Fix typos in error codes. 9291 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf M�ller] 9292 9293 *) Remove defunct assembler files from Configure. 9294 [Ulf M�ller] 9295 9296 *) SPARC v8 assembler BIGNUM implementation. 9297 [Andy Polyakov <appro@fy.chalmers.se>] 9298 9299 *) Support for Certificate Policies extension: both print and set. 9300 Various additions to support the r2i method this uses. 9301 [Steve Henson] 9302 9303 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could 9304 return a const string when you are expecting an allocated buffer. 9305 [Ben Laurie] 9306 9307 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE 9308 types DirectoryString and DisplayText. 9309 [Steve Henson] 9310 9311 *) Add code to allow r2i extensions to access the configuration database, 9312 add an LHASH database driver and add several ctx helper functions. 9313 [Steve Henson] 9314 9315 *) Fix an evil bug in bn_expand2() which caused various BN functions to 9316 fail when they extended the size of a BIGNUM. 9317 [Steve Henson] 9318 9319 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to 9320 support typesafe stack. 9321 [Steve Henson] 9322 9323 *) Fix typo in SSL_[gs]et_options(). 9324 [Nils Frostberg <nils@medcom.se>] 9325 9326 *) Delete various functions and files that belonged to the (now obsolete) 9327 old X509V3 handling code. 9328 [Steve Henson] 9329 9330 *) New Configure option "rsaref". 9331 [Ulf M�ller] 9332 9333 *) Don't auto-generate pem.h. 9334 [Bodo Moeller] 9335 9336 *) Introduce type-safe ASN.1 SETs. 9337 [Ben Laurie] 9338 9339 *) Convert various additional casted stacks to type-safe STACK_OF() variants. 9340 [Ben Laurie, Ralf S. Engelschall, Steve Henson] 9341 9342 *) Introduce type-safe STACKs. This will almost certainly break lots of code 9343 that links with OpenSSL (well at least cause lots of warnings), but fear 9344 not: the conversion is trivial, and it eliminates loads of evil casts. A 9345 few STACKed things have been converted already. Feel free to convert more. 9346 In the fullness of time, I'll do away with the STACK type altogether. 9347 [Ben Laurie] 9348 9349 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate 9350 specified in <certfile> by updating the entry in the index.txt file. 9351 This way one no longer has to edit the index.txt file manually for 9352 revoking a certificate. The -revoke option does the gory details now. 9353 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall] 9354 9355 *) Fix `openssl crl -noout -text' combination where `-noout' killed the 9356 `-text' option at all and this way the `-noout -text' combination was 9357 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'. 9358 [Ralf S. Engelschall] 9359 9360 *) Make sure a corresponding plain text error message exists for the 9361 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a 9362 verify callback function determined that a certificate was revoked. 9363 [Ralf S. Engelschall] 9364 9365 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for 9366 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test 9367 all available cipers including rc5, which was forgotten until now. 9368 In order to let the testing shell script know which algorithms 9369 are available, a new (up to now undocumented) command 9370 "openssl list-cipher-commands" is used. 9371 [Bodo Moeller] 9372 9373 *) Bugfix: s_client occasionally would sleep in select() when 9374 it should have checked SSL_pending() first. 9375 [Bodo Moeller] 9376 9377 *) New functions DSA_do_sign and DSA_do_verify to provide access to 9378 the raw DSA values prior to ASN.1 encoding. 9379 [Ulf M�ller] 9380 9381 *) Tweaks to Configure 9382 [Niels Poppe <niels@netbox.org>] 9383 9384 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support, 9385 yet... 9386 [Steve Henson] 9387 9388 *) New variables $(RANLIB) and $(PERL) in the Makefiles. 9389 [Ulf M�ller] 9390 9391 *) New config option to avoid instructions that are illegal on the 80386. 9392 The default code is faster, but requires at least a 486. 9393 [Ulf M�ller] 9394 9395 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and 9396 SSL2_SERVER_VERSION (not used at all) macros, which are now the 9397 same as SSL2_VERSION anyway. 9398 [Bodo Moeller] 9399 9400 *) New "-showcerts" option for s_client. 9401 [Bodo Moeller] 9402 9403 *) Still more PKCS#12 integration. Add pkcs12 application to openssl 9404 application. Various cleanups and fixes. 9405 [Steve Henson] 9406 9407 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and 9408 modify error routines to work internally. Add error codes and PBE init 9409 to library startup routines. 9410 [Steve Henson] 9411 9412 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and 9413 packing functions to asn1 and evp. Changed function names and error 9414 codes along the way. 9415 [Steve Henson] 9416 9417 *) PKCS12 integration: and so it begins... First of several patches to 9418 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12 9419 objects to objects.h 9420 [Steve Henson] 9421 9422 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1 9423 and display support for Thawte strong extranet extension. 9424 [Steve Henson] 9425 9426 *) Add LinuxPPC support. 9427 [Jeff Dubrule <igor@pobox.org>] 9428 9429 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to 9430 bn_div_words in alpha.s. 9431 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie] 9432 9433 *) Make sure the RSA OAEP test is skipped under -DRSAref because 9434 OAEP isn't supported when OpenSSL is built with RSAref. 9435 [Ulf Moeller <ulf@fitug.de>] 9436 9437 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h 9438 so they no longer are missing under -DNOPROTO. 9439 [Soren S. Jorvang <soren@t.dk>] 9440 9441 9442 Changes between 0.9.1c and 0.9.2b [22 Mar 1999] 9443 9444 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still 9445 doesn't work when the session is reused. Coming soon! 9446 [Ben Laurie] 9447 9448 *) Fix a security hole, that allows sessions to be reused in the wrong 9449 context thus bypassing client cert protection! All software that uses 9450 client certs and session caches in multiple contexts NEEDS PATCHING to 9451 allow session reuse! A fuller solution is in the works. 9452 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)] 9453 9454 *) Some more source tree cleanups (removed obsolete files 9455 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed 9456 permission on "config" script to be executable) and a fix for the INSTALL 9457 document. 9458 [Ulf Moeller <ulf@fitug.de>] 9459 9460 *) Remove some legacy and erroneous uses of malloc, free instead of 9461 Malloc, Free. 9462 [Lennart Bang <lob@netstream.se>, with minor changes by Steve] 9463 9464 *) Make rsa_oaep_test return non-zero on error. 9465 [Ulf Moeller <ulf@fitug.de>] 9466 9467 *) Add support for native Solaris shared libraries. Configure 9468 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice 9469 if someone would make that last step automatic. 9470 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>] 9471 9472 *) ctx_size was not built with the right compiler during "make links". Fixed. 9473 [Ben Laurie] 9474 9475 *) Change the meaning of 'ALL' in the cipher list. It now means "everything 9476 except NULL ciphers". This means the default cipher list will no longer 9477 enable NULL ciphers. They need to be specifically enabled e.g. with 9478 the string "DEFAULT:eNULL". 9479 [Steve Henson] 9480 9481 *) Fix to RSA private encryption routines: if p < q then it would 9482 occasionally produce an invalid result. This will only happen with 9483 externally generated keys because OpenSSL (and SSLeay) ensure p > q. 9484 [Steve Henson] 9485 9486 *) Be less restrictive and allow also `perl util/perlpath.pl 9487 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin', 9488 because this way one can also use an interpreter named `perl5' (which is 9489 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still 9490 installed as `perl'). 9491 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] 9492 9493 *) Let util/clean-depend.pl work also with older Perl 5.00x versions. 9494 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] 9495 9496 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add 9497 advapi32.lib to Win32 build and change the pem test comparision 9498 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the 9499 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h 9500 and crypto/des/ede_cbcm_enc.c. 9501 [Steve Henson] 9502 9503 *) DES quad checksum was broken on big-endian architectures. Fixed. 9504 [Ben Laurie] 9505 9506 *) Comment out two functions in bio.h that aren't implemented. Fix up the 9507 Win32 test batch file so it (might) work again. The Win32 test batch file 9508 is horrible: I feel ill.... 9509 [Steve Henson] 9510 9511 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected 9512 in e_os.h. Audit of header files to check ANSI and non ANSI 9513 sections: 10 functions were absent from non ANSI section and not exported 9514 from Windows DLLs. Fixed up libeay.num for new functions. 9515 [Steve Henson] 9516 9517 *) Make `openssl version' output lines consistent. 9518 [Ralf S. Engelschall] 9519 9520 *) Fix Win32 symbol export lists for BIO functions: Added 9521 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data 9522 to ms/libeay{16,32}.def. 9523 [Ralf S. Engelschall] 9524 9525 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled 9526 fine under Unix and passes some trivial tests I've now added. But the 9527 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was 9528 added to make sure no one expects that this stuff really works in the 9529 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources 9530 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and 9531 openssl_bio.xs. 9532 [Ralf S. Engelschall] 9533 9534 *) Fix the generation of two part addresses in perl. 9535 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie] 9536 9537 *) Add config entry for Linux on MIPS. 9538 [John Tobey <jtobey@channel1.com>] 9539 9540 *) Make links whenever Configure is run, unless we are on Windoze. 9541 [Ben Laurie] 9542 9543 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf. 9544 Currently only issuerAltName and AuthorityKeyIdentifier make any sense 9545 in CRLs. 9546 [Steve Henson] 9547 9548 *) Add a useful kludge to allow package maintainers to specify compiler and 9549 other platforms details on the command line without having to patch the 9550 Configure script everytime: One now can use ``perl Configure 9551 <id>:<details>'', i.e. platform ids are allowed to have details appended 9552 to them (seperated by colons). This is treated as there would be a static 9553 pre-configured entry in Configure's %table under key <id> with value 9554 <details> and ``perl Configure <id>'' is called. So, when you want to 9555 perform a quick test-compile under FreeBSD 3.1 with pgcc and without 9556 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"'' 9557 now, which overrides the FreeBSD-elf entry on-the-fly. 9558 [Ralf S. Engelschall] 9559 9560 *) Disable new TLS1 ciphersuites by default: they aren't official yet. 9561 [Ben Laurie] 9562 9563 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified 9564 on the `perl Configure ...' command line. This way one can compile 9565 OpenSSL libraries with Position Independent Code (PIC) which is needed 9566 for linking it into DSOs. 9567 [Ralf S. Engelschall] 9568 9569 *) Remarkably, export ciphers were totally broken and no-one had noticed! 9570 Fixed. 9571 [Ben Laurie] 9572 9573 *) Cleaned up the LICENSE document: The official contact for any license 9574 questions now is the OpenSSL core team under openssl-core@openssl.org. 9575 And add a paragraph about the dual-license situation to make sure people 9576 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply 9577 to the OpenSSL toolkit. 9578 [Ralf S. Engelschall] 9579 9580 *) General source tree makefile cleanups: Made `making xxx in yyy...' 9581 display consistent in the source tree and replaced `/bin/rm' by `rm'. 9582 Additonally cleaned up the `make links' target: Remove unnecessary 9583 semicolons, subsequent redundant removes, inline point.sh into mklink.sh 9584 to speed processing and no longer clutter the display with confusing 9585 stuff. Instead only the actually done links are displayed. 9586 [Ralf S. Engelschall] 9587 9588 *) Permit null encryption ciphersuites, used for authentication only. It used 9589 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this. 9590 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null 9591 encryption. 9592 [Ben Laurie] 9593 9594 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder 9595 signed attributes when verifying signatures (this would break them), 9596 the detached data encoding was wrong and public keys obtained using 9597 X509_get_pubkey() weren't freed. 9598 [Steve Henson] 9599 9600 *) Add text documentation for the BUFFER functions. Also added a work around 9601 to a Win95 console bug. This was triggered by the password read stuff: the 9602 last character typed gets carried over to the next fread(). If you were 9603 generating a new cert request using 'req' for example then the last 9604 character of the passphrase would be CR which would then enter the first 9605 field as blank. 9606 [Steve Henson] 9607 9608 *) Added the new `Includes OpenSSL Cryptography Software' button as 9609 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay 9610 button and can be used by applications based on OpenSSL to show the 9611 relationship to the OpenSSL project. 9612 [Ralf S. Engelschall] 9613 9614 *) Remove confusing variables in function signatures in files 9615 ssl/ssl_lib.c and ssl/ssl.h. 9616 [Lennart Bong <lob@kulthea.stacken.kth.se>] 9617 9618 *) Don't install bss_file.c under PREFIX/include/ 9619 [Lennart Bong <lob@kulthea.stacken.kth.se>] 9620 9621 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle 9622 functions that return function pointers and has support for NT specific 9623 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various 9624 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from 9625 unsigned to signed types: this was killing the Win32 compile. 9626 [Steve Henson] 9627 9628 *) Add new certificate file to stack functions, 9629 SSL_add_dir_cert_subjects_to_stack() and 9630 SSL_add_file_cert_subjects_to_stack(). These largely supplant 9631 SSL_load_client_CA_file(), and can be used to add multiple certs easily 9632 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()). 9633 This means that Apache-SSL and similar packages don't have to mess around 9634 to add as many CAs as they want to the preferred list. 9635 [Ben Laurie] 9636 9637 *) Experiment with doxygen documentation. Currently only partially applied to 9638 ssl/ssl_lib.c. 9639 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with 9640 openssl.doxy as the configuration file. 9641 [Ben Laurie] 9642 9643 *) Get rid of remaining C++-style comments which strict C compilers hate. 9644 [Ralf S. Engelschall, pointed out by Carlos Amengual] 9645 9646 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not 9647 compiled in by default: it has problems with large keys. 9648 [Steve Henson] 9649 9650 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and 9651 DH private keys and/or callback functions which directly correspond to 9652 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This 9653 is needed for applications which have to configure certificates on a 9654 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis 9655 (e.g. s_server). 9656 For the RSA certificate situation is makes no difference, but 9657 for the DSA certificate situation this fixes the "no shared cipher" 9658 problem where the OpenSSL cipher selection procedure failed because the 9659 temporary keys were not overtaken from the context and the API provided 9660 no way to reconfigure them. 9661 The new functions now let applications reconfigure the stuff and they 9662 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh, 9663 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new 9664 non-public-API function ssl_cert_instantiate() is used as a helper 9665 function and also to reduce code redundancy inside ssl_rsa.c. 9666 [Ralf S. Engelschall] 9667 9668 *) Move s_server -dcert and -dkey options out of the undocumented feature 9669 area because they are useful for the DSA situation and should be 9670 recognized by the users. 9671 [Ralf S. Engelschall] 9672 9673 *) Fix the cipher decision scheme for export ciphers: the export bits are 9674 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within 9675 SSL_EXP_MASK. So, the original variable has to be used instead of the 9676 already masked variable. 9677 [Richard Levitte <levitte@stacken.kth.se>] 9678 9679 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c 9680 [Richard Levitte <levitte@stacken.kth.se>] 9681 9682 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal() 9683 from `int' to `unsigned int' because it's a length and initialized by 9684 EVP_DigestFinal() which expects an `unsigned int *'. 9685 [Richard Levitte <levitte@stacken.kth.se>] 9686 9687 *) Don't hard-code path to Perl interpreter on shebang line of Configure 9688 script. Instead use the usual Shell->Perl transition trick. 9689 [Ralf S. Engelschall] 9690 9691 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates 9692 (in addition to RSA certificates) to match the behaviour of `openssl dsa 9693 -noout -modulus' as it's already the case for `openssl rsa -noout 9694 -modulus'. For RSA the -modulus is the real "modulus" while for DSA 9695 currently the public key is printed (a decision which was already done by 9696 `openssl dsa -modulus' in the past) which serves a similar purpose. 9697 Additionally the NO_RSA no longer completely removes the whole -modulus 9698 option; it now only avoids using the RSA stuff. Same applies to NO_DSA 9699 now, too. 9700 [Ralf S. Engelschall] 9701 9702 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested 9703 BIO. See the source (crypto/evp/bio_ok.c) for more info. 9704 [Arne Ansper <arne@ats.cyber.ee>] 9705 9706 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs 9707 to be added. Now both 'req' and 'ca' can use new objects defined in the 9708 config file. 9709 [Steve Henson] 9710 9711 *) Add cool BIO that does syslog (or event log on NT). 9712 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie] 9713 9714 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5, 9715 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and 9716 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher 9717 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt. 9718 [Ben Laurie] 9719 9720 *) Add preliminary config info for new extension code. 9721 [Steve Henson] 9722 9723 *) Make RSA_NO_PADDING really use no padding. 9724 [Ulf Moeller <ulf@fitug.de>] 9725 9726 *) Generate errors when private/public key check is done. 9727 [Ben Laurie] 9728 9729 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support 9730 for some CRL extensions and new objects added. 9731 [Steve Henson] 9732 9733 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private 9734 key usage extension and fuller support for authority key id. 9735 [Steve Henson] 9736 9737 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved 9738 padding method for RSA, which is recommended for new applications in PKCS 9739 #1 v2.0 (RFC 2437, October 1998). 9740 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical 9741 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure 9742 against Bleichbacher's attack on RSA. 9743 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by 9744 Ben Laurie] 9745 9746 *) Updates to the new SSL compression code 9747 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 9748 9749 *) Fix so that the version number in the master secret, when passed 9750 via RSA, checks that if TLS was proposed, but we roll back to SSLv3 9751 (because the server will not accept higher), that the version number 9752 is 0x03,0x01, not 0x03,0x00 9753 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 9754 9755 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory 9756 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes 9757 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c 9758 [Steve Henson] 9759 9760 *) Support for RAW extensions where an arbitrary extension can be 9761 created by including its DER encoding. See apps/openssl.cnf for 9762 an example. 9763 [Steve Henson] 9764 9765 *) Make sure latest Perl versions don't interpret some generated C array 9766 code as Perl array code in the crypto/err/err_genc.pl script. 9767 [Lars Weber <3weber@informatik.uni-hamburg.de>] 9768 9769 *) Modify ms/do_ms.bat to not generate assembly language makefiles since 9770 not many people have the assembler. Various Win32 compilation fixes and 9771 update to the INSTALL.W32 file with (hopefully) more accurate Win32 9772 build instructions. 9773 [Steve Henson] 9774 9775 *) Modify configure script 'Configure' to automatically create crypto/date.h 9776 file under Win32 and also build pem.h from pem.org. New script 9777 util/mkfiles.pl to create the MINFO file on environments that can't do a 9778 'make files': perl util/mkfiles.pl >MINFO should work. 9779 [Steve Henson] 9780 9781 *) Major rework of DES function declarations, in the pursuit of correctness 9782 and purity. As a result, many evil casts evaporated, and some weirdness, 9783 too. You may find this causes warnings in your code. Zapping your evil 9784 casts will probably fix them. Mostly. 9785 [Ben Laurie] 9786 9787 *) Fix for a typo in asn1.h. Bug fix to object creation script 9788 obj_dat.pl. It considered a zero in an object definition to mean 9789 "end of object": none of the objects in objects.h have any zeros 9790 so it wasn't spotted. 9791 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>] 9792 9793 *) Add support for Triple DES Cipher Block Chaining with Output Feedback 9794 Masking (CBCM). In the absence of test vectors, the best I have been able 9795 to do is check that the decrypt undoes the encrypt, so far. Send me test 9796 vectors if you have them. 9797 [Ben Laurie] 9798 9799 *) Correct calculation of key length for export ciphers (too much space was 9800 allocated for null ciphers). This has not been tested! 9801 [Ben Laurie] 9802 9803 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage 9804 message is now correct (it understands "crypto" and "ssl" on its 9805 command line). There is also now an "update" option. This will update 9806 the util/ssleay.num and util/libeay.num files with any new functions. 9807 If you do a: 9808 perl util/mkdef.pl crypto ssl update 9809 it will update them. 9810 [Steve Henson] 9811 9812 *) Overhauled the Perl interface (perl/*): 9813 - ported BN stuff to OpenSSL's different BN library 9814 - made the perl/ source tree CVS-aware 9815 - renamed the package from SSLeay to OpenSSL (the files still contain 9816 their history because I've copied them in the repository) 9817 - removed obsolete files (the test scripts will be replaced 9818 by better Test::Harness variants in the future) 9819 [Ralf S. Engelschall] 9820 9821 *) First cut for a very conservative source tree cleanup: 9822 1. merge various obsolete readme texts into doc/ssleay.txt 9823 where we collect the old documents and readme texts. 9824 2. remove the first part of files where I'm already sure that we no 9825 longer need them because of three reasons: either they are just temporary 9826 files which were left by Eric or they are preserved original files where 9827 I've verified that the diff is also available in the CVS via "cvs diff 9828 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for 9829 the crypto/md/ stuff). 9830 [Ralf S. Engelschall] 9831 9832 *) More extension code. Incomplete support for subject and issuer alt 9833 name, issuer and authority key id. Change the i2v function parameters 9834 and add an extra 'crl' parameter in the X509V3_CTX structure: guess 9835 what that's for :-) Fix to ASN1 macro which messed up 9836 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED. 9837 [Steve Henson] 9838 9839 *) Preliminary support for ENUMERATED type. This is largely copied from the 9840 INTEGER code. 9841 [Steve Henson] 9842 9843 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy. 9844 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 9845 9846 *) Make sure `make rehash' target really finds the `openssl' program. 9847 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] 9848 9849 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd 9850 like to hear about it if this slows down other processors. 9851 [Ben Laurie] 9852 9853 *) Add CygWin32 platform information to Configure script. 9854 [Alan Batie <batie@aahz.jf.intel.com>] 9855 9856 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm' 9857 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>] 9858 9859 *) New program nseq to manipulate netscape certificate sequences 9860 [Steve Henson] 9861 9862 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a 9863 few typos. 9864 [Steve Henson] 9865 9866 *) Fixes to BN code. Previously the default was to define BN_RECURSION 9867 but the BN code had some problems that would cause failures when 9868 doing certificate verification and some other functions. 9869 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 9870 9871 *) Add ASN1 and PEM code to support netscape certificate sequences. 9872 [Steve Henson] 9873 9874 *) Add ASN1 and PEM code to support netscape certificate sequences. 9875 [Steve Henson] 9876 9877 *) Add several PKIX and private extended key usage OIDs. 9878 [Steve Henson] 9879 9880 *) Modify the 'ca' program to handle the new extension code. Modify 9881 openssl.cnf for new extension format, add comments. 9882 [Steve Henson] 9883 9884 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req' 9885 and add a sample to openssl.cnf so req -x509 now adds appropriate 9886 CA extensions. 9887 [Steve Henson] 9888 9889 *) Continued X509 V3 changes. Add to other makefiles, integrate with the 9890 error code, add initial support to X509_print() and x509 application. 9891 [Steve Henson] 9892 9893 *) Takes a deep breath and start addding X509 V3 extension support code. Add 9894 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this 9895 stuff is currently isolated and isn't even compiled yet. 9896 [Steve Henson] 9897 9898 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL 9899 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print. 9900 Removed the versions check from X509 routines when loading extensions: 9901 this allows certain broken certificates that don't set the version 9902 properly to be processed. 9903 [Steve Henson] 9904 9905 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another 9906 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which 9907 can still be regenerated with "make depend". 9908 [Ben Laurie] 9909 9910 *) Spelling mistake in C version of CAST-128. 9911 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>] 9912 9913 *) Changes to the error generation code. The perl script err-code.pl 9914 now reads in the old error codes and retains the old numbers, only 9915 adding new ones if necessary. It also only changes the .err files if new 9916 codes are added. The makefiles have been modified to only insert errors 9917 when needed (to avoid needlessly modifying header files). This is done 9918 by only inserting errors if the .err file is newer than the auto generated 9919 C file. To rebuild all the error codes from scratch (the old behaviour) 9920 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl 9921 or delete all the .err files. 9922 [Steve Henson] 9923 9924 *) CAST-128 was incorrectly implemented for short keys. The C version has 9925 been fixed, but is untested. The assembler versions are also fixed, but 9926 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing 9927 to regenerate it if needed. 9928 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun 9929 Hagino <itojun@kame.net>] 9930 9931 *) File was opened incorrectly in randfile.c. 9932 [Ulf M�ller <ulf@fitug.de>] 9933 9934 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print 9935 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or 9936 GeneralizedTime. ASN1_TIME is the proper type used in certificates et 9937 al: it's just almost always a UTCTime. Note this patch adds new error 9938 codes so do a "make errors" if there are problems. 9939 [Steve Henson] 9940 9941 *) Correct Linux 1 recognition in config. 9942 [Ulf M�ller <ulf@fitug.de>] 9943 9944 *) Remove pointless MD5 hash when using DSA keys in ca. 9945 [Anonymous <nobody@replay.com>] 9946 9947 *) Generate an error if given an empty string as a cert directory. Also 9948 generate an error if handed NULL (previously returned 0 to indicate an 9949 error, but didn't set one). 9950 [Ben Laurie, reported by Anonymous <nobody@replay.com>] 9951 9952 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last. 9953 [Ben Laurie] 9954 9955 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct 9956 parameters. This was causing a warning which killed off the Win32 compile. 9957 [Steve Henson] 9958 9959 *) Remove C++ style comments from crypto/bn/bn_local.h. 9960 [Neil Costigan <neil.costigan@celocom.com>] 9961 9962 *) The function OBJ_txt2nid was broken. It was supposed to return a nid 9963 based on a text string, looking up short and long names and finally 9964 "dot" format. The "dot" format stuff didn't work. Added new function 9965 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote 9966 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the 9967 OID is not part of the table. 9968 [Steve Henson] 9969 9970 *) Add prototypes to X509 lookup/verify methods, fixing a bug in 9971 X509_LOOKUP_by_alias(). 9972 [Ben Laurie] 9973 9974 *) Sort openssl functions by name. 9975 [Ben Laurie] 9976 9977 *) Get the gendsa program working (hopefully) and add it to app list. Remove 9978 encryption from sample DSA keys (in case anyone is interested the password 9979 was "1234"). 9980 [Steve Henson] 9981 9982 *) Make _all_ *_free functions accept a NULL pointer. 9983 [Frans Heymans <fheymans@isaserver.be>] 9984 9985 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use 9986 NULL pointers. 9987 [Anonymous <nobody@replay.com>] 9988 9989 *) s_server should send the CAfile as acceptable CAs, not its own cert. 9990 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>] 9991 9992 *) Don't blow it for numeric -newkey arguments to apps/req. 9993 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>] 9994 9995 *) Temp key "for export" tests were wrong in s3_srvr.c. 9996 [Anonymous <nobody@replay.com>] 9997 9998 *) Add prototype for temp key callback functions 9999 SSL_CTX_set_tmp_{rsa,dh}_callback(). 10000 [Ben Laurie] 10001 10002 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and 10003 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey(). 10004 [Steve Henson] 10005 10006 *) X509_name_add_entry() freed the wrong thing after an error. 10007 [Arne Ansper <arne@ats.cyber.ee>] 10008 10009 *) rsa_eay.c would attempt to free a NULL context. 10010 [Arne Ansper <arne@ats.cyber.ee>] 10011 10012 *) BIO_s_socket() had a broken should_retry() on Windoze. 10013 [Arne Ansper <arne@ats.cyber.ee>] 10014 10015 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH. 10016 [Arne Ansper <arne@ats.cyber.ee>] 10017 10018 *) Make sure the already existing X509_STORE->depth variable is initialized 10019 in X509_STORE_new(), but document the fact that this variable is still 10020 unused in the certificate verification process. 10021 [Ralf S. Engelschall] 10022 10023 *) Fix the various library and apps files to free up pkeys obtained from 10024 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions. 10025 [Steve Henson] 10026 10027 *) Fix reference counting in X509_PUBKEY_get(). This makes 10028 demos/maurice/example2.c work, amongst others, probably. 10029 [Steve Henson and Ben Laurie] 10030 10031 *) First cut of a cleanup for apps/. First the `ssleay' program is now named 10032 `openssl' and second, the shortcut symlinks for the `openssl <command>' 10033 are no longer created. This way we have a single and consistent command 10034 line interface `openssl <command>', similar to `cvs <command>'. 10035 [Ralf S. Engelschall, Paul Sutton and Ben Laurie] 10036 10037 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey 10038 BIT STRING wrapper always have zero unused bits. 10039 [Steve Henson] 10040 10041 *) Add CA.pl, perl version of CA.sh, add extended key usage OID. 10042 [Steve Henson] 10043 10044 *) Make the top-level INSTALL documentation easier to understand. 10045 [Paul Sutton] 10046 10047 *) Makefiles updated to exit if an error occurs in a sub-directory 10048 make (including if user presses ^C) [Paul Sutton] 10049 10050 *) Make Montgomery context stuff explicit in RSA data structure. 10051 [Ben Laurie] 10052 10053 *) Fix build order of pem and err to allow for generated pem.h. 10054 [Ben Laurie] 10055 10056 *) Fix renumbering bug in X509_NAME_delete_entry(). 10057 [Ben Laurie] 10058 10059 *) Enhanced the err-ins.pl script so it makes the error library number 10060 global and can add a library name. This is needed for external ASN1 and 10061 other error libraries. 10062 [Steve Henson] 10063 10064 *) Fixed sk_insert which never worked properly. 10065 [Steve Henson] 10066 10067 *) Fix ASN1 macros so they can handle indefinite length construted 10068 EXPLICIT tags. Some non standard certificates use these: they can now 10069 be read in. 10070 [Steve Henson] 10071 10072 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc) 10073 into a single doc/ssleay.txt bundle. This way the information is still 10074 preserved but no longer messes up this directory. Now it's new room for 10075 the new set of documenation files. 10076 [Ralf S. Engelschall] 10077 10078 *) SETs were incorrectly DER encoded. This was a major pain, because they 10079 shared code with SEQUENCEs, which aren't coded the same. This means that 10080 almost everything to do with SETs or SEQUENCEs has either changed name or 10081 number of arguments. 10082 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>] 10083 10084 *) Fix test data to work with the above. 10085 [Ben Laurie] 10086 10087 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but 10088 was already fixed by Eric for 0.9.1 it seems. 10089 [Ben Laurie - pointed out by Ulf M�ller <ulf@fitug.de>] 10090 10091 *) Autodetect FreeBSD3. 10092 [Ben Laurie] 10093 10094 *) Fix various bugs in Configure. This affects the following platforms: 10095 nextstep 10096 ncr-scde 10097 unixware-2.0 10098 unixware-2.0-pentium 10099 sco5-cc. 10100 [Ben Laurie] 10101 10102 *) Eliminate generated files from CVS. Reorder tests to regenerate files 10103 before they are needed. 10104 [Ben Laurie] 10105 10106 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy). 10107 [Ben Laurie] 10108 10109 10110 Changes between 0.9.1b and 0.9.1c [23-Dec-1998] 10111 10112 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and 10113 changed SSLeay to OpenSSL in version strings. 10114 [Ralf S. Engelschall] 10115 10116 *) Some fixups to the top-level documents. 10117 [Paul Sutton] 10118 10119 *) Fixed the nasty bug where rsaref.h was not found under compile-time 10120 because the symlink to include/ was missing. 10121 [Ralf S. Engelschall] 10122 10123 *) Incorporated the popular no-RSA/DSA-only patches 10124 which allow to compile a RSA-free SSLeay. 10125 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall] 10126 10127 *) Fixed nasty rehash problem under `make -f Makefile.ssl links' 10128 when "ssleay" is still not found. 10129 [Ralf S. Engelschall] 10130 10131 *) Added more platforms to Configure: Cray T3E, HPUX 11, 10132 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>] 10133 10134 *) Updated the README file. 10135 [Ralf S. Engelschall] 10136 10137 *) Added various .cvsignore files in the CVS repository subdirs 10138 to make a "cvs update" really silent. 10139 [Ralf S. Engelschall] 10140 10141 *) Recompiled the error-definition header files and added 10142 missing symbols to the Win32 linker tables. 10143 [Ralf S. Engelschall] 10144 10145 *) Cleaned up the top-level documents; 10146 o new files: CHANGES and LICENSE 10147 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay 10148 o merged COPYRIGHT into LICENSE 10149 o removed obsolete TODO file 10150 o renamed MICROSOFT to INSTALL.W32 10151 [Ralf S. Engelschall] 10152 10153 *) Removed dummy files from the 0.9.1b source tree: 10154 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi 10155 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f 10156 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f 10157 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f 10158 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f 10159 [Ralf S. Engelschall] 10160 10161 *) Added various platform portability fixes. 10162 [Mark J. Cox] 10163 10164 *) The Genesis of the OpenSSL rpject: 10165 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A. 10166 Young and Tim J. Hudson created while they were working for C2Net until 10167 summer 1998. 10168 [The OpenSSL Project] 10169 10170 10171 Changes between 0.9.0b and 0.9.1b [not released] 10172 10173 *) Updated a few CA certificates under certs/ 10174 [Eric A. Young] 10175 10176 *) Changed some BIGNUM api stuff. 10177 [Eric A. Young] 10178 10179 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD, 10180 DGUX x86, Linux Alpha, etc. 10181 [Eric A. Young] 10182 10183 *) New COMP library [crypto/comp/] for SSL Record Layer Compression: 10184 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is 10185 available). 10186 [Eric A. Young] 10187 10188 *) Add -strparse option to asn1pars program which parses nested 10189 binary structures 10190 [Dr Stephen Henson <shenson@bigfoot.com>] 10191 10192 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs. 10193 [Eric A. Young] 10194 10195 *) DSA fix for "ca" program. 10196 [Eric A. Young] 10197 10198 *) Added "-genkey" option to "dsaparam" program. 10199 [Eric A. Young] 10200 10201 *) Added RIPE MD160 (rmd160) message digest. 10202 [Eric A. Young] 10203 10204 *) Added -a (all) option to "ssleay version" command. 10205 [Eric A. Young] 10206 10207 *) Added PLATFORM define which is the id given to Configure. 10208 [Eric A. Young] 10209 10210 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking. 10211 [Eric A. Young] 10212 10213 *) Extended the ASN.1 parser routines. 10214 [Eric A. Young] 10215 10216 *) Extended BIO routines to support REUSEADDR, seek, tell, etc. 10217 [Eric A. Young] 10218 10219 *) Added a BN_CTX to the BN library. 10220 [Eric A. Young] 10221 10222 *) Fixed the weak key values in DES library 10223 [Eric A. Young] 10224 10225 *) Changed API in EVP library for cipher aliases. 10226 [Eric A. Young] 10227 10228 *) Added support for RC2/64bit cipher. 10229 [Eric A. Young] 10230 10231 *) Converted the lhash library to the crypto/mem.c functions. 10232 [Eric A. Young] 10233 10234 *) Added more recognized ASN.1 object ids. 10235 [Eric A. Young] 10236 10237 *) Added more RSA padding checks for SSL/TLS. 10238 [Eric A. Young] 10239 10240 *) Added BIO proxy/filter functionality. 10241 [Eric A. Young] 10242 10243 *) Added extra_certs to SSL_CTX which can be used 10244 send extra CA certificates to the client in the CA cert chain sending 10245 process. It can be configured with SSL_CTX_add_extra_chain_cert(). 10246 [Eric A. Young] 10247 10248 *) Now Fortezza is denied in the authentication phase because 10249 this is key exchange mechanism is not supported by SSLeay at all. 10250 [Eric A. Young] 10251 10252 *) Additional PKCS1 checks. 10253 [Eric A. Young] 10254 10255 *) Support the string "TLSv1" for all TLS v1 ciphers. 10256 [Eric A. Young] 10257 10258 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the 10259 ex_data index of the SSL context in the X509_STORE_CTX ex_data. 10260 [Eric A. Young] 10261 10262 *) Fixed a few memory leaks. 10263 [Eric A. Young] 10264 10265 *) Fixed various code and comment typos. 10266 [Eric A. Young] 10267 10268 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0 10269 bytes sent in the client random. 10270 [Edward Bishop <ebishop@spyglass.com>] 10271 10272