CHANGES revision 269686
1 2 OpenSSL CHANGES 3 _______________ 4 5 Changes between 1.0.1h and 1.0.1i [6 Aug 2014] 6 7 *) Fix SRP buffer overrun vulnerability. Invalid parameters passed to the 8 SRP code can be overrun an internal buffer. Add sanity check that 9 g, A, B < N to SRP code. 10 11 Thanks to Sean Devlin and Watson Ladd of Cryptography Services, NCC 12 Group for discovering this issue. 13 (CVE-2014-3512) 14 [Steve Henson] 15 16 *) A flaw in the OpenSSL SSL/TLS server code causes the server to negotiate 17 TLS 1.0 instead of higher protocol versions when the ClientHello message 18 is badly fragmented. This allows a man-in-the-middle attacker to force a 19 downgrade to TLS 1.0 even if both the server and the client support a 20 higher protocol version, by modifying the client's TLS records. 21 22 Thanks to David Benjamin and Adam Langley (Google) for discovering and 23 researching this issue. 24 (CVE-2014-3511) 25 [David Benjamin] 26 27 *) OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject 28 to a denial of service attack. A malicious server can crash the client 29 with a null pointer dereference (read) by specifying an anonymous (EC)DH 30 ciphersuite and sending carefully crafted handshake messages. 31 32 Thanks to Felix Gr�bert (Google) for discovering and researching this 33 issue. 34 (CVE-2014-3510) 35 [Emilia K�sper] 36 37 *) By sending carefully crafted DTLS packets an attacker could cause openssl 38 to leak memory. This can be exploited through a Denial of Service attack. 39 Thanks to Adam Langley for discovering and researching this issue. 40 (CVE-2014-3507) 41 [Adam Langley] 42 43 *) An attacker can force openssl to consume large amounts of memory whilst 44 processing DTLS handshake messages. This can be exploited through a 45 Denial of Service attack. 46 Thanks to Adam Langley for discovering and researching this issue. 47 (CVE-2014-3506) 48 [Adam Langley] 49 50 *) An attacker can force an error condition which causes openssl to crash 51 whilst processing DTLS packets due to memory being freed twice. This 52 can be exploited through a Denial of Service attack. 53 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching 54 this issue. 55 (CVE-2014-3505) 56 [Adam Langley] 57 58 *) If a multithreaded client connects to a malicious server using a resumed 59 session and the server sends an ec point format extension it could write 60 up to 255 bytes to freed memory. 61 62 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this 63 issue. 64 (CVE-2014-3509) 65 [Gabor Tyukasz] 66 67 *) A malicious server can crash an OpenSSL client with a null pointer 68 dereference (read) by specifying an SRP ciphersuite even though it was not 69 properly negotiated with the client. This can be exploited through a 70 Denial of Service attack. 71 72 Thanks to Joonas Kuorilehto and Riku Hietam�ki (Codenomicon) for 73 discovering and researching this issue. 74 (CVE-2014-5139) 75 [Steve Henson] 76 77 *) A flaw in OBJ_obj2txt may cause pretty printing functions such as 78 X509_name_oneline, X509_name_print_ex et al. to leak some information 79 from the stack. Applications may be affected if they echo pretty printing 80 output to the attacker. 81 82 Thanks to Ivan Fratric (Google) for discovering this issue. 83 (CVE-2014-3508) 84 [Emilia K�sper, and Steve Henson] 85 86 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) 87 for corner cases. (Certain input points at infinity could lead to 88 bogus results, with non-infinity inputs mapped to infinity too.) 89 [Bodo Moeller] 90 91 Changes between 1.0.1g and 1.0.1h [5 Jun 2014] 92 93 *) Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted 94 handshake can force the use of weak keying material in OpenSSL 95 SSL/TLS clients and servers. 96 97 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and 98 researching this issue. (CVE-2014-0224) 99 [KIKUCHI Masashi, Steve Henson] 100 101 *) Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an 102 OpenSSL DTLS client the code can be made to recurse eventually crashing 103 in a DoS attack. 104 105 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue. 106 (CVE-2014-0221) 107 [Imre Rad, Steve Henson] 108 109 *) Fix DTLS invalid fragment vulnerability. A buffer overrun attack can 110 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS 111 client or server. This is potentially exploitable to run arbitrary 112 code on a vulnerable client or server. 113 114 Thanks to J�ri Aedla for reporting this issue. (CVE-2014-0195) 115 [J�ri Aedla, Steve Henson] 116 117 *) Fix bug in TLS code where clients enable anonymous ECDH ciphersuites 118 are subject to a denial of service attack. 119 120 Thanks to Felix Gr�bert and Ivan Fratric at Google for discovering 121 this issue. (CVE-2014-3470) 122 [Felix Gr�bert, Ivan Fratric, Steve Henson] 123 124 *) Harmonize version and its documentation. -f flag is used to display 125 compilation flags. 126 [mancha <mancha1@zoho.com>] 127 128 *) Fix eckey_priv_encode so it immediately returns an error upon a failure 129 in i2d_ECPrivateKey. 130 [mancha <mancha1@zoho.com>] 131 132 *) Fix some double frees. These are not thought to be exploitable. 133 [mancha <mancha1@zoho.com>] 134 135 Changes between 1.0.1f and 1.0.1g [7 Apr 2014] 136 137 *) A missing bounds check in the handling of the TLS heartbeat extension 138 can be used to reveal up to 64k of memory to a connected client or 139 server. 140 141 Thanks for Neel Mehta of Google Security for discovering this bug and to 142 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for 143 preparing the fix (CVE-2014-0160) 144 [Adam Langley, Bodo Moeller] 145 146 *) Fix for the attack described in the paper "Recovering OpenSSL 147 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack" 148 by Yuval Yarom and Naomi Benger. Details can be obtained from: 149 http://eprint.iacr.org/2014/140 150 151 Thanks to Yuval Yarom and Naomi Benger for discovering this 152 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076) 153 [Yuval Yarom and Naomi Benger] 154 155 *) TLS pad extension: draft-agl-tls-padding-03 156 157 Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the 158 TLS client Hello record length value would otherwise be > 255 and 159 less that 512 pad with a dummy extension containing zeroes so it 160 is at least 512 bytes long. 161 162 [Adam Langley, Steve Henson] 163 164 Changes between 1.0.1e and 1.0.1f [6 Jan 2014] 165 166 *) Fix for TLS record tampering bug. A carefully crafted invalid 167 handshake could crash OpenSSL with a NULL pointer exception. 168 Thanks to Anton Johansson for reporting this issues. 169 (CVE-2013-4353) 170 171 *) Keep original DTLS digest and encryption contexts in retransmission 172 structures so we can use the previous session parameters if they need 173 to be resent. (CVE-2013-6450) 174 [Steve Henson] 175 176 *) Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which 177 avoids preferring ECDHE-ECDSA ciphers when the client appears to be 178 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for 179 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug 180 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing 181 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer. 182 [Rob Stradling, Adam Langley] 183 184 Changes between 1.0.1d and 1.0.1e [11 Feb 2013] 185 186 *) Correct fix for CVE-2013-0169. The original didn't work on AES-NI 187 supporting platforms or when small records were transferred. 188 [Andy Polyakov, Steve Henson] 189 190 Changes between 1.0.1c and 1.0.1d [5 Feb 2013] 191 192 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time. 193 194 This addresses the flaw in CBC record processing discovered by 195 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found 196 at: http://www.isg.rhul.ac.uk/tls/ 197 198 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 199 Security Group at Royal Holloway, University of London 200 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and 201 Emilia K�sper for the initial patch. 202 (CVE-2013-0169) 203 [Emilia K�sper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson] 204 205 *) Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode 206 ciphersuites which can be exploited in a denial of service attack. 207 Thanks go to and to Adam Langley <agl@chromium.org> for discovering 208 and detecting this bug and to Wolfgang Ettlinger 209 <wolfgang.ettlinger@gmail.com> for independently discovering this issue. 210 (CVE-2012-2686) 211 [Adam Langley] 212 213 *) Return an error when checking OCSP signatures when key is NULL. 214 This fixes a DoS attack. (CVE-2013-0166) 215 [Steve Henson] 216 217 *) Make openssl verify return errors. 218 [Chris Palmer <palmer@google.com> and Ben Laurie] 219 220 *) Call OCSP Stapling callback after ciphersuite has been chosen, so 221 the right response is stapled. Also change SSL_get_certificate() 222 so it returns the certificate actually sent. 223 See http://rt.openssl.org/Ticket/Display.html?id=2836. 224 [Rob Stradling <rob.stradling@comodo.com>] 225 226 *) Fix possible deadlock when decoding public keys. 227 [Steve Henson] 228 229 *) Don't use TLS 1.0 record version number in initial client hello 230 if renegotiating. 231 [Steve Henson] 232 233 Changes between 1.0.1b and 1.0.1c [10 May 2012] 234 235 *) Sanity check record length before skipping explicit IV in TLS 236 1.2, 1.1 and DTLS to fix DoS attack. 237 238 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic 239 fuzzing as a service testing platform. 240 (CVE-2012-2333) 241 [Steve Henson] 242 243 *) Initialise tkeylen properly when encrypting CMS messages. 244 Thanks to Solar Designer of Openwall for reporting this issue. 245 [Steve Henson] 246 247 *) In FIPS mode don't try to use composite ciphers as they are not 248 approved. 249 [Steve Henson] 250 251 Changes between 1.0.1a and 1.0.1b [26 Apr 2012] 252 253 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and 254 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately 255 mean any application compiled against OpenSSL 1.0.0 headers setting 256 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng 257 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to 258 0x10000000L Any application which was previously compiled against 259 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1 260 will need to be recompiled as a result. Letting be results in 261 inability to disable specifically TLS 1.1 and in client context, 262 in unlike event, limit maximum offered version to TLS 1.0 [see below]. 263 [Steve Henson] 264 265 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not 266 disable just protocol X, but all protocols above X *if* there are 267 protocols *below* X still enabled. In more practical terms it means 268 that if application wants to disable TLS1.0 in favor of TLS1.1 and 269 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass 270 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to 271 client side. 272 [Andy Polyakov] 273 274 Changes between 1.0.1 and 1.0.1a [19 Apr 2012] 275 276 *) Check for potentially exploitable overflows in asn1_d2i_read_bio 277 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer 278 in CRYPTO_realloc_clean. 279 280 Thanks to Tavis Ormandy, Google Security Team, for discovering this 281 issue and to Adam Langley <agl@chromium.org> for fixing it. 282 (CVE-2012-2110) 283 [Adam Langley (Google), Tavis Ormandy, Google Security Team] 284 285 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections. 286 [Adam Langley] 287 288 *) Workarounds for some broken servers that "hang" if a client hello 289 record length exceeds 255 bytes. 290 291 1. Do not use record version number > TLS 1.0 in initial client 292 hello: some (but not all) hanging servers will now work. 293 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate 294 the number of ciphers sent in the client hello. This should be 295 set to an even number, such as 50, for example by passing: 296 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure. 297 Most broken servers should now work. 298 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable 299 TLS 1.2 client support entirely. 300 [Steve Henson] 301 302 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH. 303 [Andy Polyakov] 304 305 Changes between 1.0.0h and 1.0.1 [14 Mar 2012] 306 307 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET 308 STRING form instead of a DigestInfo. 309 [Steve Henson] 310 311 *) The format used for MDC2 RSA signatures is inconsistent between EVP 312 and the RSA_sign/RSA_verify functions. This was made more apparent when 313 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular 314 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect 315 the correct format in RSA_verify so both forms transparently work. 316 [Steve Henson] 317 318 *) Some servers which support TLS 1.0 can choke if we initially indicate 319 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA 320 encrypted premaster secret. As a workaround use the maximum pemitted 321 client version in client hello, this should keep such servers happy 322 and still work with previous versions of OpenSSL. 323 [Steve Henson] 324 325 *) Add support for TLS/DTLS heartbeats. 326 [Robin Seggelmann <seggelmann@fh-muenster.de>] 327 328 *) Add support for SCTP. 329 [Robin Seggelmann <seggelmann@fh-muenster.de>] 330 331 *) Improved PRNG seeding for VOS. 332 [Paul Green <Paul.Green@stratus.com>] 333 334 *) Extensive assembler packs updates, most notably: 335 336 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support; 337 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES); 338 - x86_64: bit-sliced AES implementation; 339 - ARM: NEON support, contemporary platforms optimizations; 340 - s390x: z196 support; 341 - *: GHASH and GF(2^m) multiplication implementations; 342 343 [Andy Polyakov] 344 345 *) Make TLS-SRP code conformant with RFC 5054 API cleanup 346 (removal of unnecessary code) 347 [Peter Sylvester <peter.sylvester@edelweb.fr>] 348 349 *) Add TLS key material exporter from RFC 5705. 350 [Eric Rescorla] 351 352 *) Add DTLS-SRTP negotiation from RFC 5764. 353 [Eric Rescorla] 354 355 *) Add Next Protocol Negotiation, 356 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be 357 disabled with a no-npn flag to config or Configure. Code donated 358 by Google. 359 [Adam Langley <agl@google.com> and Ben Laurie] 360 361 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224, 362 NIST-P256, NIST-P521, with constant-time single point multiplication on 363 typical inputs. Compiler support for the nonstandard type __uint128_t is 364 required to use this (present in gcc 4.4 and later, for 64-bit builds). 365 Code made available under Apache License version 2.0. 366 367 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command 368 line to include this in your build of OpenSSL, and run "make depend" (or 369 "make update"). This enables the following EC_METHODs: 370 371 EC_GFp_nistp224_method() 372 EC_GFp_nistp256_method() 373 EC_GFp_nistp521_method() 374 375 EC_GROUP_new_by_curve_name() will automatically use these (while 376 EC_GROUP_new_curve_GFp() currently prefers the more flexible 377 implementations). 378 [Emilia K�sper, Adam Langley, Bodo Moeller (Google)] 379 380 *) Use type ossl_ssize_t instad of ssize_t which isn't available on 381 all platforms. Move ssize_t definition from e_os.h to the public 382 header file e_os2.h as it now appears in public header file cms.h 383 [Steve Henson] 384 385 *) New -sigopt option to the ca, req and x509 utilities. Additional 386 signature parameters can be passed using this option and in 387 particular PSS. 388 [Steve Henson] 389 390 *) Add RSA PSS signing function. This will generate and set the 391 appropriate AlgorithmIdentifiers for PSS based on those in the 392 corresponding EVP_MD_CTX structure. No application support yet. 393 [Steve Henson] 394 395 *) Support for companion algorithm specific ASN1 signing routines. 396 New function ASN1_item_sign_ctx() signs a pre-initialised 397 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on 398 the appropriate parameters. 399 [Steve Henson] 400 401 *) Add new algorithm specific ASN1 verification initialisation function 402 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1 403 handling will be the same no matter what EVP_PKEY_METHOD is used. 404 Add a PSS handler to support verification of PSS signatures: checked 405 against a number of sample certificates. 406 [Steve Henson] 407 408 *) Add signature printing for PSS. Add PSS OIDs. 409 [Steve Henson, Martin Kaiser <lists@kaiser.cx>] 410 411 *) Add algorithm specific signature printing. An individual ASN1 method 412 can now print out signatures instead of the standard hex dump. 413 414 More complex signatures (e.g. PSS) can print out more meaningful 415 information. Include DSA version that prints out the signature 416 parameters r, s. 417 [Steve Henson] 418 419 *) Password based recipient info support for CMS library: implementing 420 RFC3211. 421 [Steve Henson] 422 423 *) Split password based encryption into PBES2 and PBKDF2 functions. This 424 neatly separates the code into cipher and PBE sections and is required 425 for some algorithms that split PBES2 into separate pieces (such as 426 password based CMS). 427 [Steve Henson] 428 429 *) Session-handling fixes: 430 - Fix handling of connections that are resuming with a session ID, 431 but also support Session Tickets. 432 - Fix a bug that suppressed issuing of a new ticket if the client 433 presented a ticket with an expired session. 434 - Try to set the ticket lifetime hint to something reasonable. 435 - Make tickets shorter by excluding irrelevant information. 436 - On the client side, don't ignore renewed tickets. 437 [Adam Langley, Bodo Moeller (Google)] 438 439 *) Fix PSK session representation. 440 [Bodo Moeller] 441 442 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations. 443 444 This work was sponsored by Intel. 445 [Andy Polyakov] 446 447 *) Add GCM support to TLS library. Some custom code is needed to split 448 the IV between the fixed (from PRF) and explicit (from TLS record) 449 portions. This adds all GCM ciphersuites supported by RFC5288 and 450 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and 451 add a special AESGCM string for GCM only. 452 [Steve Henson] 453 454 *) Expand range of ctrls for AES GCM. Permit setting invocation 455 field on decrypt and retrieval of invocation field only on encrypt. 456 [Steve Henson] 457 458 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support. 459 As required by RFC5289 these ciphersuites cannot be used if for 460 versions of TLS earlier than 1.2. 461 [Steve Henson] 462 463 *) For FIPS capable OpenSSL interpret a NULL default public key method 464 as unset and return the appopriate default but do *not* set the default. 465 This means we can return the appopriate method in applications that 466 swicth between FIPS and non-FIPS modes. 467 [Steve Henson] 468 469 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an 470 ENGINE is used then we cannot handle that in the FIPS module so we 471 keep original code iff non-FIPS operations are allowed. 472 [Steve Henson] 473 474 *) Add -attime option to openssl utilities. 475 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson] 476 477 *) Redirect DSA and DH operations to FIPS module in FIPS mode. 478 [Steve Henson] 479 480 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use 481 FIPS EC methods unconditionally for now. 482 [Steve Henson] 483 484 *) New build option no-ec2m to disable characteristic 2 code. 485 [Steve Henson] 486 487 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not 488 all cases can be covered as some introduce binary incompatibilities. 489 [Steve Henson] 490 491 *) Redirect RSA operations to FIPS module including keygen, 492 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods. 493 [Steve Henson] 494 495 *) Add similar low level API blocking to ciphers. 496 [Steve Henson] 497 498 *) Low level digest APIs are not approved in FIPS mode: any attempt 499 to use these will cause a fatal error. Applications that *really* want 500 to use them can use the private_* version instead. 501 [Steve Henson] 502 503 *) Redirect cipher operations to FIPS module for FIPS builds. 504 [Steve Henson] 505 506 *) Redirect digest operations to FIPS module for FIPS builds. 507 [Steve Henson] 508 509 *) Update build system to add "fips" flag which will link in fipscanister.o 510 for static and shared library builds embedding a signature if needed. 511 [Steve Henson] 512 513 *) Output TLS supported curves in preference order instead of numerical 514 order. This is currently hardcoded for the highest order curves first. 515 This should be configurable so applications can judge speed vs strength. 516 [Steve Henson] 517 518 *) Add TLS v1.2 server support for client authentication. 519 [Steve Henson] 520 521 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers 522 and enable MD5. 523 [Steve Henson] 524 525 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying 526 FIPS modules versions. 527 [Steve Henson] 528 529 *) Add TLS v1.2 client side support for client authentication. Keep cache 530 of handshake records longer as we don't know the hash algorithm to use 531 until after the certificate request message is received. 532 [Steve Henson] 533 534 *) Initial TLS v1.2 client support. Add a default signature algorithms 535 extension including all the algorithms we support. Parse new signature 536 format in client key exchange. Relax some ECC signing restrictions for 537 TLS v1.2 as indicated in RFC5246. 538 [Steve Henson] 539 540 *) Add server support for TLS v1.2 signature algorithms extension. Switch 541 to new signature format when needed using client digest preference. 542 All server ciphersuites should now work correctly in TLS v1.2. No client 543 support yet and no support for client certificates. 544 [Steve Henson] 545 546 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch 547 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based 548 ciphersuites. At present only RSA key exchange ciphersuites work with 549 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete 550 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods 551 and version checking. 552 [Steve Henson] 553 554 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled 555 with this defined it will not be affected by any changes to ssl internal 556 structures. Add several utility functions to allow openssl application 557 to work with OPENSSL_NO_SSL_INTERN defined. 558 [Steve Henson] 559 560 *) Add SRP support. 561 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie] 562 563 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id. 564 [Steve Henson] 565 566 *) Permit abbreviated handshakes when renegotiating using the function 567 SSL_renegotiate_abbreviated(). 568 [Robin Seggelmann <seggelmann@fh-muenster.de>] 569 570 *) Add call to ENGINE_register_all_complete() to 571 ENGINE_load_builtin_engines(), so some implementations get used 572 automatically instead of needing explicit application support. 573 [Steve Henson] 574 575 *) Add support for TLS key exporter as described in RFC5705. 576 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson] 577 578 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only 579 a few changes are required: 580 581 Add SSL_OP_NO_TLSv1_1 flag. 582 Add TLSv1_1 methods. 583 Update version checking logic to handle version 1.1. 584 Add explicit IV handling (ported from DTLS code). 585 Add command line options to s_client/s_server. 586 [Steve Henson] 587 588 Changes between 1.0.0j and 1.0.0k [5 Feb 2013] 589 590 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time. 591 592 This addresses the flaw in CBC record processing discovered by 593 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found 594 at: http://www.isg.rhul.ac.uk/tls/ 595 596 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 597 Security Group at Royal Holloway, University of London 598 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and 599 Emilia K�sper for the initial patch. 600 (CVE-2013-0169) 601 [Emilia K�sper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson] 602 603 *) Return an error when checking OCSP signatures when key is NULL. 604 This fixes a DoS attack. (CVE-2013-0166) 605 [Steve Henson] 606 607 *) Call OCSP Stapling callback after ciphersuite has been chosen, so 608 the right response is stapled. Also change SSL_get_certificate() 609 so it returns the certificate actually sent. 610 See http://rt.openssl.org/Ticket/Display.html?id=2836. 611 (This is a backport) 612 [Rob Stradling <rob.stradling@comodo.com>] 613 614 *) Fix possible deadlock when decoding public keys. 615 [Steve Henson] 616 617 Changes between 1.0.0i and 1.0.0j [10 May 2012] 618 619 [NB: OpenSSL 1.0.0i and later 1.0.0 patch levels were released after 620 OpenSSL 1.0.1.] 621 622 *) Sanity check record length before skipping explicit IV in DTLS 623 to fix DoS attack. 624 625 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic 626 fuzzing as a service testing platform. 627 (CVE-2012-2333) 628 [Steve Henson] 629 630 *) Initialise tkeylen properly when encrypting CMS messages. 631 Thanks to Solar Designer of Openwall for reporting this issue. 632 [Steve Henson] 633 634 Changes between 1.0.0h and 1.0.0i [19 Apr 2012] 635 636 *) Check for potentially exploitable overflows in asn1_d2i_read_bio 637 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer 638 in CRYPTO_realloc_clean. 639 640 Thanks to Tavis Ormandy, Google Security Team, for discovering this 641 issue and to Adam Langley <agl@chromium.org> for fixing it. 642 (CVE-2012-2110) 643 [Adam Langley (Google), Tavis Ormandy, Google Security Team] 644 645 Changes between 1.0.0g and 1.0.0h [12 Mar 2012] 646 647 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness 648 in CMS and PKCS7 code. When RSA decryption fails use a random key for 649 content decryption and always return the same error. Note: this attack 650 needs on average 2^20 messages so it only affects automated senders. The 651 old behaviour can be reenabled in the CMS code by setting the 652 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where 653 an MMA defence is not necessary. 654 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering 655 this issue. (CVE-2012-0884) 656 [Steve Henson] 657 658 *) Fix CVE-2011-4619: make sure we really are receiving a 659 client hello before rejecting multiple SGC restarts. Thanks to 660 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug. 661 [Steve Henson] 662 663 Changes between 1.0.0f and 1.0.0g [18 Jan 2012] 664 665 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109. 666 Thanks to Antonio Martin, Enterprise Secure Access Research and 667 Development, Cisco Systems, Inc. for discovering this bug and 668 preparing a fix. (CVE-2012-0050) 669 [Antonio Martin] 670 671 Changes between 1.0.0e and 1.0.0f [4 Jan 2012] 672 673 *) Nadhem Alfardan and Kenny Paterson have discovered an extension 674 of the Vaudenay padding oracle attack on CBC mode encryption 675 which enables an efficient plaintext recovery attack against 676 the OpenSSL implementation of DTLS. Their attack exploits timing 677 differences arising during decryption processing. A research 678 paper describing this attack can be found at: 679 http://www.isg.rhul.ac.uk/~kp/dtls.pdf 680 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 681 Security Group at Royal Holloway, University of London 682 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann 683 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de> 684 for preparing the fix. (CVE-2011-4108) 685 [Robin Seggelmann, Michael Tuexen] 686 687 *) Clear bytes used for block padding of SSL 3.0 records. 688 (CVE-2011-4576) 689 [Adam Langley (Google)] 690 691 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George 692 Kadianakis <desnacked@gmail.com> for discovering this issue and 693 Adam Langley for preparing the fix. (CVE-2011-4619) 694 [Adam Langley (Google)] 695 696 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027) 697 [Andrey Kulikov <amdeich@gmail.com>] 698 699 *) Prevent malformed RFC3779 data triggering an assertion failure. 700 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw 701 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577) 702 [Rob Austein <sra@hactrn.net>] 703 704 *) Improved PRNG seeding for VOS. 705 [Paul Green <Paul.Green@stratus.com>] 706 707 *) Fix ssl_ciph.c set-up race. 708 [Adam Langley (Google)] 709 710 *) Fix spurious failures in ecdsatest.c. 711 [Emilia K�sper (Google)] 712 713 *) Fix the BIO_f_buffer() implementation (which was mixing different 714 interpretations of the '..._len' fields). 715 [Adam Langley (Google)] 716 717 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than 718 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent 719 threads won't reuse the same blinding coefficients. 720 721 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING 722 lock to call BN_BLINDING_invert_ex, and avoids one use of 723 BN_BLINDING_update for each BN_BLINDING structure (previously, 724 the last update always remained unused). 725 [Emilia K�sper (Google)] 726 727 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf. 728 [Bob Buckholz (Google)] 729 730 Changes between 1.0.0d and 1.0.0e [6 Sep 2011] 731 732 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted 733 by initialising X509_STORE_CTX properly. (CVE-2011-3207) 734 [Kaspar Brand <ossl@velox.ch>] 735 736 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular 737 for multi-threaded use of ECDH. (CVE-2011-3210) 738 [Adam Langley (Google)] 739 740 *) Fix x509_name_ex_d2i memory leak on bad inputs. 741 [Bodo Moeller] 742 743 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check 744 signature public key algorithm by using OID xref utilities instead. 745 Before this you could only use some ECC ciphersuites with SHA1 only. 746 [Steve Henson] 747 748 *) Add protection against ECDSA timing attacks as mentioned in the paper 749 by Billy Bob Brumley and Nicola Tuveri, see: 750 751 http://eprint.iacr.org/2011/232.pdf 752 753 [Billy Bob Brumley and Nicola Tuveri] 754 755 Changes between 1.0.0c and 1.0.0d [8 Feb 2011] 756 757 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014 758 [Neel Mehta, Adam Langley, Bodo Moeller (Google)] 759 760 *) Fix bug in string printing code: if *any* escaping is enabled we must 761 escape the escape character (backslash) or the resulting string is 762 ambiguous. 763 [Steve Henson] 764 765 Changes between 1.0.0b and 1.0.0c [2 Dec 2010] 766 767 *) Disable code workaround for ancient and obsolete Netscape browsers 768 and servers: an attacker can use it in a ciphersuite downgrade attack. 769 Thanks to Martin Rex for discovering this bug. CVE-2010-4180 770 [Steve Henson] 771 772 *) Fixed J-PAKE implementation error, originally discovered by 773 Sebastien Martini, further info and confirmation from Stefan 774 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252 775 [Ben Laurie] 776 777 Changes between 1.0.0a and 1.0.0b [16 Nov 2010] 778 779 *) Fix extension code to avoid race conditions which can result in a buffer 780 overrun vulnerability: resumed sessions must not be modified as they can 781 be shared by multiple threads. CVE-2010-3864 782 [Steve Henson] 783 784 *) Fix WIN32 build system to correctly link an ENGINE directory into 785 a DLL. 786 [Steve Henson] 787 788 Changes between 1.0.0 and 1.0.0a [01 Jun 2010] 789 790 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover 791 (CVE-2010-1633) 792 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>] 793 794 Changes between 0.9.8n and 1.0.0 [29 Mar 2010] 795 796 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher 797 context. The operation can be customised via the ctrl mechanism in 798 case ENGINEs want to include additional functionality. 799 [Steve Henson] 800 801 *) Tolerate yet another broken PKCS#8 key format: private key value negative. 802 [Steve Henson] 803 804 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to 805 output hashes compatible with older versions of OpenSSL. 806 [Willy Weisz <weisz@vcpc.univie.ac.at>] 807 808 *) Fix compression algorithm handling: if resuming a session use the 809 compression algorithm of the resumed session instead of determining 810 it from client hello again. Don't allow server to change algorithm. 811 [Steve Henson] 812 813 *) Add load_crls() function to apps tidying load_certs() too. Add option 814 to verify utility to allow additional CRLs to be included. 815 [Steve Henson] 816 817 *) Update OCSP request code to permit adding custom headers to the request: 818 some responders need this. 819 [Steve Henson] 820 821 *) The function EVP_PKEY_sign() returns <=0 on error: check return code 822 correctly. 823 [Julia Lawall <julia@diku.dk>] 824 825 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it 826 needlessly dereferenced structures, used obsolete functions and 827 didn't handle all updated verify codes correctly. 828 [Steve Henson] 829 830 *) Disable MD2 in the default configuration. 831 [Steve Henson] 832 833 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to 834 indicate the initial BIO being pushed or popped. This makes it possible 835 to determine whether the BIO is the one explicitly called or as a result 836 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so 837 it handles reference counts correctly and doesn't zero out the I/O bio 838 when it is not being explicitly popped. WARNING: applications which 839 included workarounds for the old buggy behaviour will need to be modified 840 or they could free up already freed BIOs. 841 [Steve Henson] 842 843 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni 844 renaming to all platforms (within the 0.9.8 branch, this was 845 done conditionally on Netware platforms to avoid a name clash). 846 [Guenter <lists@gknw.net>] 847 848 *) Add ECDHE and PSK support to DTLS. 849 [Michael Tuexen <tuexen@fh-muenster.de>] 850 851 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't 852 be used on C++. 853 [Steve Henson] 854 855 *) Add "missing" function EVP_MD_flags() (without this the only way to 856 retrieve a digest flags is by accessing the structure directly. Update 857 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest 858 or cipher is registered as in the "from" argument. Print out all 859 registered digests in the dgst usage message instead of manually 860 attempting to work them out. 861 [Steve Henson] 862 863 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello: 864 this allows the use of compression and extensions. Change default cipher 865 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2 866 by default unless an application cipher string requests it. 867 [Steve Henson] 868 869 *) Alter match criteria in PKCS12_parse(). It used to try to use local 870 key ids to find matching certificates and keys but some PKCS#12 files 871 don't follow the (somewhat unwritten) rules and this strategy fails. 872 Now just gather all certificates together and the first private key 873 then look for the first certificate that matches the key. 874 [Steve Henson] 875 876 *) Support use of registered digest and cipher names for dgst and cipher 877 commands instead of having to add each one as a special case. So now 878 you can do: 879 880 openssl sha256 foo 881 882 as well as: 883 884 openssl dgst -sha256 foo 885 886 and this works for ENGINE based algorithms too. 887 888 [Steve Henson] 889 890 *) Update Gost ENGINE to support parameter files. 891 [Victor B. Wagner <vitus@cryptocom.ru>] 892 893 *) Support GeneralizedTime in ca utility. 894 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson] 895 896 *) Enhance the hash format used for certificate directory links. The new 897 form uses the canonical encoding (meaning equivalent names will work 898 even if they aren't identical) and uses SHA1 instead of MD5. This form 899 is incompatible with the older format and as a result c_rehash should 900 be used to rebuild symbolic links. 901 [Steve Henson] 902 903 *) Make PKCS#8 the default write format for private keys, replacing the 904 traditional format. This form is standardised, more secure and doesn't 905 include an implicit MD5 dependency. 906 [Steve Henson] 907 908 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code 909 committed to OpenSSL should pass this lot as a minimum. 910 [Steve Henson] 911 912 *) Add session ticket override functionality for use by EAP-FAST. 913 [Jouni Malinen <j@w1.fi>] 914 915 *) Modify HMAC functions to return a value. Since these can be implemented 916 in an ENGINE errors can occur. 917 [Steve Henson] 918 919 *) Type-checked OBJ_bsearch_ex. 920 [Ben Laurie] 921 922 *) Type-checked OBJ_bsearch. Also some constification necessitated 923 by type-checking. Still to come: TXT_DB, bsearch(?), 924 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING, 925 CONF_VALUE. 926 [Ben Laurie] 927 928 *) New function OPENSSL_gmtime_adj() to add a specific number of days and 929 seconds to a tm structure directly, instead of going through OS 930 specific date routines. This avoids any issues with OS routines such 931 as the year 2038 bug. New *_adj() functions for ASN1 time structures 932 and X509_time_adj_ex() to cover the extended range. The existing 933 X509_time_adj() is still usable and will no longer have any date issues. 934 [Steve Henson] 935 936 *) Delta CRL support. New use deltas option which will attempt to locate 937 and search any appropriate delta CRLs available. 938 939 This work was sponsored by Google. 940 [Steve Henson] 941 942 *) Support for CRLs partitioned by reason code. Reorganise CRL processing 943 code and add additional score elements. Validate alternate CRL paths 944 as part of the CRL checking and indicate a new error "CRL path validation 945 error" in this case. Applications wanting additional details can use 946 the verify callback and check the new "parent" field. If this is not 947 NULL CRL path validation is taking place. Existing applications wont 948 see this because it requires extended CRL support which is off by 949 default. 950 951 This work was sponsored by Google. 952 [Steve Henson] 953 954 *) Support for freshest CRL extension. 955 956 This work was sponsored by Google. 957 [Steve Henson] 958 959 *) Initial indirect CRL support. Currently only supported in the CRLs 960 passed directly and not via lookup. Process certificate issuer 961 CRL entry extension and lookup CRL entries by bother issuer name 962 and serial number. Check and process CRL issuer entry in IDP extension. 963 964 This work was sponsored by Google. 965 [Steve Henson] 966 967 *) Add support for distinct certificate and CRL paths. The CRL issuer 968 certificate is validated separately in this case. Only enabled if 969 an extended CRL support flag is set: this flag will enable additional 970 CRL functionality in future. 971 972 This work was sponsored by Google. 973 [Steve Henson] 974 975 *) Add support for policy mappings extension. 976 977 This work was sponsored by Google. 978 [Steve Henson] 979 980 *) Fixes to pathlength constraint, self issued certificate handling, 981 policy processing to align with RFC3280 and PKITS tests. 982 983 This work was sponsored by Google. 984 [Steve Henson] 985 986 *) Support for name constraints certificate extension. DN, email, DNS 987 and URI types are currently supported. 988 989 This work was sponsored by Google. 990 [Steve Henson] 991 992 *) To cater for systems that provide a pointer-based thread ID rather 993 than numeric, deprecate the current numeric thread ID mechanism and 994 replace it with a structure and associated callback type. This 995 mechanism allows a numeric "hash" to be extracted from a thread ID in 996 either case, and on platforms where pointers are larger than 'long', 997 mixing is done to help ensure the numeric 'hash' is usable even if it 998 can't be guaranteed unique. The default mechanism is to use "&errno" 999 as a pointer-based thread ID to distinguish between threads. 1000 1001 Applications that want to provide their own thread IDs should now use 1002 CRYPTO_THREADID_set_callback() to register a callback that will call 1003 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer(). 1004 1005 Note that ERR_remove_state() is now deprecated, because it is tied 1006 to the assumption that thread IDs are numeric. ERR_remove_state(0) 1007 to free the current thread's error state should be replaced by 1008 ERR_remove_thread_state(NULL). 1009 1010 (This new approach replaces the functions CRYPTO_set_idptr_callback(), 1011 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in 1012 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an 1013 application was previously providing a numeric thread callback that 1014 was inappropriate for distinguishing threads, then uniqueness might 1015 have been obtained with &errno that happened immediately in the 1016 intermediate development versions of OpenSSL; this is no longer the 1017 case, the numeric thread callback will now override the automatic use 1018 of &errno.) 1019 [Geoff Thorpe, with help from Bodo Moeller] 1020 1021 *) Initial support for different CRL issuing certificates. This covers a 1022 simple case where the self issued certificates in the chain exist and 1023 the real CRL issuer is higher in the existing chain. 1024 1025 This work was sponsored by Google. 1026 [Steve Henson] 1027 1028 *) Removed effectively defunct crypto/store from the build. 1029 [Ben Laurie] 1030 1031 *) Revamp of STACK to provide stronger type-checking. Still to come: 1032 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE, 1033 ASN1_STRING, CONF_VALUE. 1034 [Ben Laurie] 1035 1036 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer 1037 RAM on SSL connections. This option can save about 34k per idle SSL. 1038 [Nick Mathewson] 1039 1040 *) Revamp of LHASH to provide stronger type-checking. Still to come: 1041 STACK, TXT_DB, bsearch, qsort. 1042 [Ben Laurie] 1043 1044 *) Initial support for Cryptographic Message Syntax (aka CMS) based 1045 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility, 1046 support for data, signedData, compressedData, digestedData and 1047 encryptedData, envelopedData types included. Scripts to check against 1048 RFC4134 examples draft and interop and consistency checks of many 1049 content types and variants. 1050 [Steve Henson] 1051 1052 *) Add options to enc utility to support use of zlib compression BIO. 1053 [Steve Henson] 1054 1055 *) Extend mk1mf to support importing of options and assembly language 1056 files from Configure script, currently only included in VC-WIN32. 1057 The assembly language rules can now optionally generate the source 1058 files from the associated perl scripts. 1059 [Steve Henson] 1060 1061 *) Implement remaining functionality needed to support GOST ciphersuites. 1062 Interop testing has been performed using CryptoPro implementations. 1063 [Victor B. Wagner <vitus@cryptocom.ru>] 1064 1065 *) s390x assembler pack. 1066 [Andy Polyakov] 1067 1068 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU 1069 "family." 1070 [Andy Polyakov] 1071 1072 *) Implement Opaque PRF Input TLS extension as specified in 1073 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an 1074 official specification yet and no extension type assignment by 1075 IANA exists, this extension (for now) will have to be explicitly 1076 enabled when building OpenSSL by providing the extension number 1077 to use. For example, specify an option 1078 1079 -DTLSEXT_TYPE_opaque_prf_input=0x9527 1080 1081 to the "config" or "Configure" script to enable the extension, 1082 assuming extension number 0x9527 (which is a completely arbitrary 1083 and unofficial assignment based on the MD5 hash of the Internet 1084 Draft). Note that by doing so, you potentially lose 1085 interoperability with other TLS implementations since these might 1086 be using the same extension number for other purposes. 1087 1088 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the 1089 opaque PRF input value to use in the handshake. This will create 1090 an interal copy of the length-'len' string at 'src', and will 1091 return non-zero for success. 1092 1093 To get more control and flexibility, provide a callback function 1094 by using 1095 1096 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb) 1097 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg) 1098 1099 where 1100 1101 int (*cb)(SSL *, void *peerinput, size_t len, void *arg); 1102 void *arg; 1103 1104 Callback function 'cb' will be called in handshakes, and is 1105 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate. 1106 Argument 'arg' is for application purposes (the value as given to 1107 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly 1108 be provided to the callback function). The callback function 1109 has to return non-zero to report success: usually 1 to use opaque 1110 PRF input just if possible, or 2 to enforce use of the opaque PRF 1111 input. In the latter case, the library will abort the handshake 1112 if opaque PRF input is not successfully negotiated. 1113 1114 Arguments 'peerinput' and 'len' given to the callback function 1115 will always be NULL and 0 in the case of a client. A server will 1116 see the client's opaque PRF input through these variables if 1117 available (NULL and 0 otherwise). Note that if the server 1118 provides an opaque PRF input, the length must be the same as the 1119 length of the client's opaque PRF input. 1120 1121 Note that the callback function will only be called when creating 1122 a new session (session resumption can resume whatever was 1123 previously negotiated), and will not be called in SSL 2.0 1124 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or 1125 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended 1126 for applications that need to enforce opaque PRF input. 1127 1128 [Bodo Moeller] 1129 1130 *) Update ssl code to support digests other than SHA1+MD5 for handshake 1131 MAC. 1132 1133 [Victor B. Wagner <vitus@cryptocom.ru>] 1134 1135 *) Add RFC4507 support to OpenSSL. This includes the corrections in 1136 RFC4507bis. The encrypted ticket format is an encrypted encoded 1137 SSL_SESSION structure, that way new session features are automatically 1138 supported. 1139 1140 If a client application caches session in an SSL_SESSION structure 1141 support is transparent because tickets are now stored in the encoded 1142 SSL_SESSION. 1143 1144 The SSL_CTX structure automatically generates keys for ticket 1145 protection in servers so again support should be possible 1146 with no application modification. 1147 1148 If a client or server wishes to disable RFC4507 support then the option 1149 SSL_OP_NO_TICKET can be set. 1150 1151 Add a TLS extension debugging callback to allow the contents of any client 1152 or server extensions to be examined. 1153 1154 This work was sponsored by Google. 1155 [Steve Henson] 1156 1157 *) Final changes to avoid use of pointer pointer casts in OpenSSL. 1158 OpenSSL should now compile cleanly on gcc 4.2 1159 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson] 1160 1161 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC 1162 support including streaming MAC support: this is required for GOST 1163 ciphersuite support. 1164 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson] 1165 1166 *) Add option -stream to use PKCS#7 streaming in smime utility. New 1167 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream() 1168 to output in BER and PEM format. 1169 [Steve Henson] 1170 1171 *) Experimental support for use of HMAC via EVP_PKEY interface. This 1172 allows HMAC to be handled via the EVP_DigestSign*() interface. The 1173 EVP_PKEY "key" in this case is the HMAC key, potentially allowing 1174 ENGINE support for HMAC keys which are unextractable. New -mac and 1175 -macopt options to dgst utility. 1176 [Steve Henson] 1177 1178 *) New option -sigopt to dgst utility. Update dgst to use 1179 EVP_Digest{Sign,Verify}*. These two changes make it possible to use 1180 alternative signing paramaters such as X9.31 or PSS in the dgst 1181 utility. 1182 [Steve Henson] 1183 1184 *) Change ssl_cipher_apply_rule(), the internal function that does 1185 the work each time a ciphersuite string requests enabling 1186 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or 1187 removing ("!foo+bar") a class of ciphersuites: Now it maintains 1188 the order of disabled ciphersuites such that those ciphersuites 1189 that most recently went from enabled to disabled not only stay 1190 in order with respect to each other, but also have higher priority 1191 than other disabled ciphersuites the next time ciphersuites are 1192 enabled again. 1193 1194 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable 1195 the same ciphersuites as with "HIGH" alone, but in a specific 1196 order where the PSK ciphersuites come first (since they are the 1197 most recently disabled ciphersuites when "HIGH" is parsed). 1198 1199 Also, change ssl_create_cipher_list() (using this new 1200 funcionality) such that between otherwise identical 1201 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in 1202 the default order. 1203 [Bodo Moeller] 1204 1205 *) Change ssl_create_cipher_list() so that it automatically 1206 arranges the ciphersuites in reasonable order before starting 1207 to process the rule string. Thus, the definition for "DEFAULT" 1208 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but 1209 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH". 1210 This makes it much easier to arrive at a reasonable default order 1211 in applications for which anonymous ciphers are OK (meaning 1212 that you can't actually use DEFAULT). 1213 [Bodo Moeller; suggested by Victor Duchovni] 1214 1215 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string 1216 processing) into multiple integers instead of setting 1217 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK", 1218 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer. 1219 (These masks as well as the individual bit definitions are hidden 1220 away into the non-exported interface ssl/ssl_locl.h, so this 1221 change to the definition of the SSL_CIPHER structure shouldn't 1222 affect applications.) This give us more bits for each of these 1223 categories, so there is no longer a need to coagulate AES128 and 1224 AES256 into a single algorithm bit, and to coagulate Camellia128 1225 and Camellia256 into a single algorithm bit, which has led to all 1226 kinds of kludges. 1227 1228 Thus, among other things, the kludge introduced in 0.9.7m and 1229 0.9.8e for masking out AES256 independently of AES128 or masking 1230 out Camellia256 independently of AES256 is not needed here in 0.9.9. 1231 1232 With the change, we also introduce new ciphersuite aliases that 1233 so far were missing: "AES128", "AES256", "CAMELLIA128", and 1234 "CAMELLIA256". 1235 [Bodo Moeller] 1236 1237 *) Add support for dsa-with-SHA224 and dsa-with-SHA256. 1238 Use the leftmost N bytes of the signature input if the input is 1239 larger than the prime q (with N being the size in bytes of q). 1240 [Nils Larsch] 1241 1242 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses 1243 it yet and it is largely untested. 1244 [Steve Henson] 1245 1246 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types. 1247 [Nils Larsch] 1248 1249 *) Initial incomplete changes to avoid need for function casts in OpenSSL 1250 some compilers (gcc 4.2 and later) reject their use. Safestack is 1251 reimplemented. Update ASN1 to avoid use of legacy functions. 1252 [Steve Henson] 1253 1254 *) Win32/64 targets are linked with Winsock2. 1255 [Andy Polyakov] 1256 1257 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected 1258 to external functions. This can be used to increase CRL handling 1259 efficiency especially when CRLs are very large by (for example) storing 1260 the CRL revoked certificates in a database. 1261 [Steve Henson] 1262 1263 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so 1264 new CRLs added to a directory can be used. New command line option 1265 -verify_return_error to s_client and s_server. This causes real errors 1266 to be returned by the verify callback instead of carrying on no matter 1267 what. This reflects the way a "real world" verify callback would behave. 1268 [Steve Henson] 1269 1270 *) GOST engine, supporting several GOST algorithms and public key formats. 1271 Kindly donated by Cryptocom. 1272 [Cryptocom] 1273 1274 *) Partial support for Issuing Distribution Point CRL extension. CRLs 1275 partitioned by DP are handled but no indirect CRL or reason partitioning 1276 (yet). Complete overhaul of CRL handling: now the most suitable CRL is 1277 selected via a scoring technique which handles IDP and AKID in CRLs. 1278 [Steve Henson] 1279 1280 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which 1281 will ultimately be used for all verify operations: this will remove the 1282 X509_STORE dependency on certificate verification and allow alternative 1283 lookup methods. X509_STORE based implementations of these two callbacks. 1284 [Steve Henson] 1285 1286 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names. 1287 Modify get_crl() to find a valid (unexpired) CRL if possible. 1288 [Steve Henson] 1289 1290 *) New function X509_CRL_match() to check if two CRLs are identical. Normally 1291 this would be called X509_CRL_cmp() but that name is already used by 1292 a function that just compares CRL issuer names. Cache several CRL 1293 extensions in X509_CRL structure and cache CRLDP in X509. 1294 [Steve Henson] 1295 1296 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name) 1297 this maps equivalent X509_NAME structures into a consistent structure. 1298 Name comparison can then be performed rapidly using memcmp(). 1299 [Steve Henson] 1300 1301 *) Non-blocking OCSP request processing. Add -timeout option to ocsp 1302 utility. 1303 [Steve Henson] 1304 1305 *) Allow digests to supply their own micalg string for S/MIME type using 1306 the ctrl EVP_MD_CTRL_MICALG. 1307 [Steve Henson] 1308 1309 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the 1310 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN 1311 ctrl. It can then customise the structure before and/or after signing 1312 if necessary. 1313 [Steve Henson] 1314 1315 *) New function OBJ_add_sigid() to allow application defined signature OIDs 1316 to be added to OpenSSLs internal tables. New function OBJ_sigid_free() 1317 to free up any added signature OIDs. 1318 [Steve Henson] 1319 1320 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(), 1321 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal 1322 digest and cipher tables. New options added to openssl utility: 1323 list-message-digest-algorithms and list-cipher-algorithms. 1324 [Steve Henson] 1325 1326 *) Change the array representation of binary polynomials: the list 1327 of degrees of non-zero coefficients is now terminated with -1. 1328 Previously it was terminated with 0, which was also part of the 1329 value; thus, the array representation was not applicable to 1330 polynomials where t^0 has coefficient zero. This change makes 1331 the array representation useful in a more general context. 1332 [Douglas Stebila] 1333 1334 *) Various modifications and fixes to SSL/TLS cipher string 1335 handling. For ECC, the code now distinguishes between fixed ECDH 1336 with RSA certificates on the one hand and with ECDSA certificates 1337 on the other hand, since these are separate ciphersuites. The 1338 unused code for Fortezza ciphersuites has been removed. 1339 1340 For consistency with EDH, ephemeral ECDH is now called "EECDH" 1341 (not "ECDHE"). For consistency with the code for DH 1342 certificates, use of ECDH certificates is now considered ECDH 1343 authentication, not RSA or ECDSA authentication (the latter is 1344 merely the CA's signing algorithm and not actively used in the 1345 protocol). 1346 1347 The temporary ciphersuite alias "ECCdraft" is no longer 1348 available, and ECC ciphersuites are no longer excluded from "ALL" 1349 and "DEFAULT". The following aliases now exist for RFC 4492 1350 ciphersuites, most of these by analogy with the DH case: 1351 1352 kECDHr - ECDH cert, signed with RSA 1353 kECDHe - ECDH cert, signed with ECDSA 1354 kECDH - ECDH cert (signed with either RSA or ECDSA) 1355 kEECDH - ephemeral ECDH 1356 ECDH - ECDH cert or ephemeral ECDH 1357 1358 aECDH - ECDH cert 1359 aECDSA - ECDSA cert 1360 ECDSA - ECDSA cert 1361 1362 AECDH - anonymous ECDH 1363 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH") 1364 1365 [Bodo Moeller] 1366 1367 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported. 1368 Use correct micalg parameters depending on digest(s) in signed message. 1369 [Steve Henson] 1370 1371 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process 1372 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code. 1373 [Steve Henson] 1374 1375 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit 1376 an engine to register a method. Add ENGINE lookups for methods and 1377 functional reference processing. 1378 [Steve Henson] 1379 1380 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of 1381 EVP_{Sign,Verify}* which allow an application to customise the signature 1382 process. 1383 [Steve Henson] 1384 1385 *) New -resign option to smime utility. This adds one or more signers 1386 to an existing PKCS#7 signedData structure. Also -md option to use an 1387 alternative message digest algorithm for signing. 1388 [Steve Henson] 1389 1390 *) Tidy up PKCS#7 routines and add new functions to make it easier to 1391 create PKCS7 structures containing multiple signers. Update smime 1392 application to support multiple signers. 1393 [Steve Henson] 1394 1395 *) New -macalg option to pkcs12 utility to allow setting of an alternative 1396 digest MAC. 1397 [Steve Henson] 1398 1399 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC. 1400 Reorganize PBE internals to lookup from a static table using NIDs, 1401 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl: 1402 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative 1403 PRF which will be automatically used with PBES2. 1404 [Steve Henson] 1405 1406 *) Replace the algorithm specific calls to generate keys in "req" with the 1407 new API. 1408 [Steve Henson] 1409 1410 *) Update PKCS#7 enveloped data routines to use new API. This is now 1411 supported by any public key method supporting the encrypt operation. A 1412 ctrl is added to allow the public key algorithm to examine or modify 1413 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is 1414 a no op. 1415 [Steve Henson] 1416 1417 *) Add a ctrl to asn1 method to allow a public key algorithm to express 1418 a default digest type to use. In most cases this will be SHA1 but some 1419 algorithms (such as GOST) need to specify an alternative digest. The 1420 return value indicates how strong the prefernce is 1 means optional and 1421 2 is mandatory (that is it is the only supported type). Modify 1422 ASN1_item_sign() to accept a NULL digest argument to indicate it should 1423 use the default md. Update openssl utilities to use the default digest 1424 type for signing if it is not explicitly indicated. 1425 [Steve Henson] 1426 1427 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New 1428 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant 1429 signing method from the key type. This effectively removes the link 1430 between digests and public key types. 1431 [Steve Henson] 1432 1433 *) Add an OID cross reference table and utility functions. Its purpose is to 1434 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1, 1435 rsaEncryption. This will allow some of the algorithm specific hackery 1436 needed to use the correct OID to be removed. 1437 [Steve Henson] 1438 1439 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO 1440 structures for PKCS7_sign(). They are now set up by the relevant public 1441 key ASN1 method. 1442 [Steve Henson] 1443 1444 *) Add provisional EC pkey method with support for ECDSA and ECDH. 1445 [Steve Henson] 1446 1447 *) Add support for key derivation (agreement) in the API, DH method and 1448 pkeyutl. 1449 [Steve Henson] 1450 1451 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support 1452 public and private key formats. As a side effect these add additional 1453 command line functionality not previously available: DSA signatures can be 1454 generated and verified using pkeyutl and DH key support and generation in 1455 pkey, genpkey. 1456 [Steve Henson] 1457 1458 *) BeOS support. 1459 [Oliver Tappe <zooey@hirschkaefer.de>] 1460 1461 *) New make target "install_html_docs" installs HTML renditions of the 1462 manual pages. 1463 [Oliver Tappe <zooey@hirschkaefer.de>] 1464 1465 *) New utility "genpkey" this is analagous to "genrsa" etc except it can 1466 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to 1467 support key and parameter generation and add initial key generation 1468 functionality for RSA. 1469 [Steve Henson] 1470 1471 *) Add functions for main EVP_PKEY_method operations. The undocumented 1472 functions EVP_PKEY_{encrypt,decrypt} have been renamed to 1473 EVP_PKEY_{encrypt,decrypt}_old. 1474 [Steve Henson] 1475 1476 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public 1477 key API, doesn't do much yet. 1478 [Steve Henson] 1479 1480 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about 1481 public key algorithms. New option to openssl utility: 1482 "list-public-key-algorithms" to print out info. 1483 [Steve Henson] 1484 1485 *) Implement the Supported Elliptic Curves Extension for 1486 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 1487 [Douglas Stebila] 1488 1489 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or 1490 EVP_CIPHER structures to avoid later problems in EVP_cleanup(). 1491 [Steve Henson] 1492 1493 *) New utilities pkey and pkeyparam. These are similar to algorithm specific 1494 utilities such as rsa, dsa, dsaparam etc except they process any key 1495 type. 1496 [Steve Henson] 1497 1498 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New 1499 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(), 1500 EVP_PKEY_print_param() to print public key data from an EVP_PKEY 1501 structure. 1502 [Steve Henson] 1503 1504 *) Initial support for pluggable public key ASN1. 1505 De-spaghettify the public key ASN1 handling. Move public and private 1506 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate 1507 algorithm specific handling to a single module within the relevant 1508 algorithm directory. Add functions to allow (near) opaque processing 1509 of public and private key structures. 1510 [Steve Henson] 1511 1512 *) Implement the Supported Point Formats Extension for 1513 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 1514 [Douglas Stebila] 1515 1516 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members 1517 for the psk identity [hint] and the psk callback functions to the 1518 SSL_SESSION, SSL and SSL_CTX structure. 1519 1520 New ciphersuites: 1521 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA, 1522 PSK-AES256-CBC-SHA 1523 1524 New functions: 1525 SSL_CTX_use_psk_identity_hint 1526 SSL_get_psk_identity_hint 1527 SSL_get_psk_identity 1528 SSL_use_psk_identity_hint 1529 1530 [Mika Kousa and Pasi Eronen of Nokia Corporation] 1531 1532 *) Add RFC 3161 compliant time stamp request creation, response generation 1533 and response verification functionality. 1534 [Zolt�n Gl�zik <zglozik@opentsa.org>, The OpenTSA Project] 1535 1536 *) Add initial support for TLS extensions, specifically for the server_name 1537 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 1538 have new members for a host name. The SSL data structure has an 1539 additional member SSL_CTX *initial_ctx so that new sessions can be 1540 stored in that context to allow for session resumption, even after the 1541 SSL has been switched to a new SSL_CTX in reaction to a client's 1542 server_name extension. 1543 1544 New functions (subject to change): 1545 1546 SSL_get_servername() 1547 SSL_get_servername_type() 1548 SSL_set_SSL_CTX() 1549 1550 New CTRL codes and macros (subject to change): 1551 1552 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 1553 - SSL_CTX_set_tlsext_servername_callback() 1554 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 1555 - SSL_CTX_set_tlsext_servername_arg() 1556 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 1557 1558 openssl s_client has a new '-servername ...' option. 1559 1560 openssl s_server has new options '-servername_host ...', '-cert2 ...', 1561 '-key2 ...', '-servername_fatal' (subject to change). This allows 1562 testing the HostName extension for a specific single host name ('-cert' 1563 and '-key' remain fallbacks for handshakes without HostName 1564 negotiation). If the unrecogninzed_name alert has to be sent, this by 1565 default is a warning; it becomes fatal with the '-servername_fatal' 1566 option. 1567 1568 [Peter Sylvester, Remy Allais, Christophe Renou] 1569 1570 *) Whirlpool hash implementation is added. 1571 [Andy Polyakov] 1572 1573 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to 1574 bn(64,32). Because of instruction set limitations it doesn't have 1575 any negative impact on performance. This was done mostly in order 1576 to make it possible to share assembler modules, such as bn_mul_mont 1577 implementations, between 32- and 64-bit builds without hassle. 1578 [Andy Polyakov] 1579 1580 *) Move code previously exiled into file crypto/ec/ec2_smpt.c 1581 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP 1582 macro. 1583 [Bodo Moeller] 1584 1585 *) New candidate for BIGNUM assembler implementation, bn_mul_mont, 1586 dedicated Montgomery multiplication procedure, is introduced. 1587 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher 1588 "64-bit" performance on certain 32-bit targets. 1589 [Andy Polyakov] 1590 1591 *) New option SSL_OP_NO_COMP to disable use of compression selectively 1592 in SSL structures. New SSL ctrl to set maximum send fragment size. 1593 Save memory by seeting the I/O buffer sizes dynamically instead of 1594 using the maximum available value. 1595 [Steve Henson] 1596 1597 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code 1598 in addition to the text details. 1599 [Bodo Moeller] 1600 1601 *) Very, very preliminary EXPERIMENTAL support for printing of general 1602 ASN1 structures. This currently produces rather ugly output and doesn't 1603 handle several customised structures at all. 1604 [Steve Henson] 1605 1606 *) Integrated support for PVK file format and some related formats such 1607 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support 1608 these in the 'rsa' and 'dsa' utilities. 1609 [Steve Henson] 1610 1611 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line. 1612 [Steve Henson] 1613 1614 *) Remove the ancient ASN1_METHOD code. This was only ever used in one 1615 place for the (very old) "NETSCAPE" format certificates which are now 1616 handled using new ASN1 code equivalents. 1617 [Steve Henson] 1618 1619 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD 1620 pointer and make the SSL_METHOD parameter in SSL_CTX_new, 1621 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'. 1622 [Nils Larsch] 1623 1624 *) Modify CRL distribution points extension code to print out previously 1625 unsupported fields. Enhance extension setting code to allow setting of 1626 all fields. 1627 [Steve Henson] 1628 1629 *) Add print and set support for Issuing Distribution Point CRL extension. 1630 [Steve Henson] 1631 1632 *) Change 'Configure' script to enable Camellia by default. 1633 [NTT] 1634 1635 Changes between 0.9.8x and 0.9.8y [5 Feb 2013] 1636 1637 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time. 1638 1639 This addresses the flaw in CBC record processing discovered by 1640 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found 1641 at: http://www.isg.rhul.ac.uk/tls/ 1642 1643 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 1644 Security Group at Royal Holloway, University of London 1645 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and 1646 Emilia K�sper for the initial patch. 1647 (CVE-2013-0169) 1648 [Emilia K�sper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson] 1649 1650 *) Return an error when checking OCSP signatures when key is NULL. 1651 This fixes a DoS attack. (CVE-2013-0166) 1652 [Steve Henson] 1653 1654 *) Call OCSP Stapling callback after ciphersuite has been chosen, so 1655 the right response is stapled. Also change SSL_get_certificate() 1656 so it returns the certificate actually sent. 1657 See http://rt.openssl.org/Ticket/Display.html?id=2836. 1658 (This is a backport) 1659 [Rob Stradling <rob.stradling@comodo.com>] 1660 1661 *) Fix possible deadlock when decoding public keys. 1662 [Steve Henson] 1663 1664 Changes between 0.9.8w and 0.9.8x [10 May 2012] 1665 1666 *) Sanity check record length before skipping explicit IV in DTLS 1667 to fix DoS attack. 1668 1669 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic 1670 fuzzing as a service testing platform. 1671 (CVE-2012-2333) 1672 [Steve Henson] 1673 1674 *) Initialise tkeylen properly when encrypting CMS messages. 1675 Thanks to Solar Designer of Openwall for reporting this issue. 1676 [Steve Henson] 1677 1678 Changes between 0.9.8v and 0.9.8w [23 Apr 2012] 1679 1680 *) The fix for CVE-2012-2110 did not take into account that the 1681 'len' argument to BUF_MEM_grow and BUF_MEM_grow_clean is an 1682 int in OpenSSL 0.9.8, making it still vulnerable. Fix by 1683 rejecting negative len parameter. (CVE-2012-2131) 1684 [Tomas Hoger <thoger@redhat.com>] 1685 1686 Changes between 0.9.8u and 0.9.8v [19 Apr 2012] 1687 1688 *) Check for potentially exploitable overflows in asn1_d2i_read_bio 1689 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer 1690 in CRYPTO_realloc_clean. 1691 1692 Thanks to Tavis Ormandy, Google Security Team, for discovering this 1693 issue and to Adam Langley <agl@chromium.org> for fixing it. 1694 (CVE-2012-2110) 1695 [Adam Langley (Google), Tavis Ormandy, Google Security Team] 1696 1697 Changes between 0.9.8t and 0.9.8u [12 Mar 2012] 1698 1699 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness 1700 in CMS and PKCS7 code. When RSA decryption fails use a random key for 1701 content decryption and always return the same error. Note: this attack 1702 needs on average 2^20 messages so it only affects automated senders. The 1703 old behaviour can be reenabled in the CMS code by setting the 1704 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where 1705 an MMA defence is not necessary. 1706 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering 1707 this issue. (CVE-2012-0884) 1708 [Steve Henson] 1709 1710 *) Fix CVE-2011-4619: make sure we really are receiving a 1711 client hello before rejecting multiple SGC restarts. Thanks to 1712 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug. 1713 [Steve Henson] 1714 1715 Changes between 0.9.8s and 0.9.8t [18 Jan 2012] 1716 1717 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109. 1718 Thanks to Antonio Martin, Enterprise Secure Access Research and 1719 Development, Cisco Systems, Inc. for discovering this bug and 1720 preparing a fix. (CVE-2012-0050) 1721 [Antonio Martin] 1722 1723 Changes between 0.9.8r and 0.9.8s [4 Jan 2012] 1724 1725 *) Nadhem Alfardan and Kenny Paterson have discovered an extension 1726 of the Vaudenay padding oracle attack on CBC mode encryption 1727 which enables an efficient plaintext recovery attack against 1728 the OpenSSL implementation of DTLS. Their attack exploits timing 1729 differences arising during decryption processing. A research 1730 paper describing this attack can be found at: 1731 http://www.isg.rhul.ac.uk/~kp/dtls.pdf 1732 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 1733 Security Group at Royal Holloway, University of London 1734 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann 1735 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de> 1736 for preparing the fix. (CVE-2011-4108) 1737 [Robin Seggelmann, Michael Tuexen] 1738 1739 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109) 1740 [Ben Laurie, Kasper <ekasper@google.com>] 1741 1742 *) Clear bytes used for block padding of SSL 3.0 records. 1743 (CVE-2011-4576) 1744 [Adam Langley (Google)] 1745 1746 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George 1747 Kadianakis <desnacked@gmail.com> for discovering this issue and 1748 Adam Langley for preparing the fix. (CVE-2011-4619) 1749 [Adam Langley (Google)] 1750 1751 *) Prevent malformed RFC3779 data triggering an assertion failure. 1752 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw 1753 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577) 1754 [Rob Austein <sra@hactrn.net>] 1755 1756 *) Fix ssl_ciph.c set-up race. 1757 [Adam Langley (Google)] 1758 1759 *) Fix spurious failures in ecdsatest.c. 1760 [Emilia K�sper (Google)] 1761 1762 *) Fix the BIO_f_buffer() implementation (which was mixing different 1763 interpretations of the '..._len' fields). 1764 [Adam Langley (Google)] 1765 1766 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than 1767 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent 1768 threads won't reuse the same blinding coefficients. 1769 1770 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING 1771 lock to call BN_BLINDING_invert_ex, and avoids one use of 1772 BN_BLINDING_update for each BN_BLINDING structure (previously, 1773 the last update always remained unused). 1774 [Emilia K�sper (Google)] 1775 1776 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular 1777 for multi-threaded use of ECDH. 1778 [Adam Langley (Google)] 1779 1780 *) Fix x509_name_ex_d2i memory leak on bad inputs. 1781 [Bodo Moeller] 1782 1783 *) Add protection against ECDSA timing attacks as mentioned in the paper 1784 by Billy Bob Brumley and Nicola Tuveri, see: 1785 1786 http://eprint.iacr.org/2011/232.pdf 1787 1788 [Billy Bob Brumley and Nicola Tuveri] 1789 1790 Changes between 0.9.8q and 0.9.8r [8 Feb 2011] 1791 1792 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014 1793 [Neel Mehta, Adam Langley, Bodo Moeller (Google)] 1794 1795 *) Fix bug in string printing code: if *any* escaping is enabled we must 1796 escape the escape character (backslash) or the resulting string is 1797 ambiguous. 1798 [Steve Henson] 1799 1800 Changes between 0.9.8p and 0.9.8q [2 Dec 2010] 1801 1802 *) Disable code workaround for ancient and obsolete Netscape browsers 1803 and servers: an attacker can use it in a ciphersuite downgrade attack. 1804 Thanks to Martin Rex for discovering this bug. CVE-2010-4180 1805 [Steve Henson] 1806 1807 *) Fixed J-PAKE implementation error, originally discovered by 1808 Sebastien Martini, further info and confirmation from Stefan 1809 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252 1810 [Ben Laurie] 1811 1812 Changes between 0.9.8o and 0.9.8p [16 Nov 2010] 1813 1814 *) Fix extension code to avoid race conditions which can result in a buffer 1815 overrun vulnerability: resumed sessions must not be modified as they can 1816 be shared by multiple threads. CVE-2010-3864 1817 [Steve Henson] 1818 1819 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939 1820 [Steve Henson] 1821 1822 *) Don't reencode certificate when calculating signature: cache and use 1823 the original encoding instead. This makes signature verification of 1824 some broken encodings work correctly. 1825 [Steve Henson] 1826 1827 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT 1828 is also one of the inputs. 1829 [Emilia K�sper <emilia.kasper@esat.kuleuven.be> (Google)] 1830 1831 *) Don't repeatedly append PBE algorithms to table if they already exist. 1832 Sort table on each new add. This effectively makes the table read only 1833 after all algorithms are added and subsequent calls to PKCS12_pbe_add 1834 etc are non-op. 1835 [Steve Henson] 1836 1837 Changes between 0.9.8n and 0.9.8o [01 Jun 2010] 1838 1839 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after 1840 OpenSSL 1.0.0.] 1841 1842 *) Correct a typo in the CMS ASN1 module which can result in invalid memory 1843 access or freeing data twice (CVE-2010-0742) 1844 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>] 1845 1846 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more 1847 common in certificates and some applications which only call 1848 SSL_library_init and not OpenSSL_add_all_algorithms() will fail. 1849 [Steve Henson] 1850 1851 *) VMS fixes: 1852 Reduce copying into .apps and .test in makevms.com 1853 Don't try to use blank CA certificate in CA.com 1854 Allow use of C files from original directories in maketests.com 1855 [Steven M. Schweda" <sms@antinode.info>] 1856 1857 Changes between 0.9.8m and 0.9.8n [24 Mar 2010] 1858 1859 *) When rejecting SSL/TLS records due to an incorrect version number, never 1860 update s->server with a new major version number. As of 1861 - OpenSSL 0.9.8m if 'short' is a 16-bit type, 1862 - OpenSSL 0.9.8f if 'short' is longer than 16 bits, 1863 the previous behavior could result in a read attempt at NULL when 1864 receiving specific incorrect SSL/TLS records once record payload 1865 protection is active. (CVE-2010-0740) 1866 [Bodo Moeller, Adam Langley <agl@chromium.org>] 1867 1868 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL 1869 could be crashed if the relevant tables were not present (e.g. chrooted). 1870 [Tomas Hoger <thoger@redhat.com>] 1871 1872 Changes between 0.9.8l and 0.9.8m [25 Feb 2010] 1873 1874 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245) 1875 [Martin Olsson, Neel Mehta] 1876 1877 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to 1878 accommodate for stack sorting, always a write lock!). 1879 [Bodo Moeller] 1880 1881 *) On some versions of WIN32 Heap32Next is very slow. This can cause 1882 excessive delays in the RAND_poll(): over a minute. As a workaround 1883 include a time check in the inner Heap32Next loop too. 1884 [Steve Henson] 1885 1886 *) The code that handled flushing of data in SSL/TLS originally used the 1887 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused 1888 the problem outlined in PR#1949. The fix suggested there however can 1889 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions 1890 of Apache). So instead simplify the code to flush unconditionally. 1891 This should be fine since flushing with no data to flush is a no op. 1892 [Steve Henson] 1893 1894 *) Handle TLS versions 2.0 and later properly and correctly use the 1895 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way 1896 off ancient servers have a habit of sticking around for a while... 1897 [Steve Henson] 1898 1899 *) Modify compression code so it frees up structures without using the 1900 ex_data callbacks. This works around a problem where some applications 1901 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when 1902 restarting) then use compression (e.g. SSL with compression) later. 1903 This results in significant per-connection memory leaks and 1904 has caused some security issues including CVE-2008-1678 and 1905 CVE-2009-4355. 1906 [Steve Henson] 1907 1908 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't 1909 change when encrypting or decrypting. 1910 [Bodo Moeller] 1911 1912 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to 1913 connect and renegotiate with servers which do not support RI. 1914 Until RI is more widely deployed this option is enabled by default. 1915 [Steve Henson] 1916 1917 *) Add "missing" ssl ctrls to clear options and mode. 1918 [Steve Henson] 1919 1920 *) If client attempts to renegotiate and doesn't support RI respond with 1921 a no_renegotiation alert as required by RFC5746. Some renegotiating 1922 TLS clients will continue a connection gracefully when they receive 1923 the alert. Unfortunately OpenSSL mishandled this alert and would hang 1924 waiting for a server hello which it will never receive. Now we treat a 1925 received no_renegotiation alert as a fatal error. This is because 1926 applications requesting a renegotiation might well expect it to succeed 1927 and would have no code in place to handle the server denying it so the 1928 only safe thing to do is to terminate the connection. 1929 [Steve Henson] 1930 1931 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if 1932 peer supports secure renegotiation and 0 otherwise. Print out peer 1933 renegotiation support in s_client/s_server. 1934 [Steve Henson] 1935 1936 *) Replace the highly broken and deprecated SPKAC certification method with 1937 the updated NID creation version. This should correctly handle UTF8. 1938 [Steve Henson] 1939 1940 *) Implement RFC5746. Re-enable renegotiation but require the extension 1941 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION 1942 turns out to be a bad idea. It has been replaced by 1943 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with 1944 SSL_CTX_set_options(). This is really not recommended unless you 1945 know what you are doing. 1946 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson] 1947 1948 *) Fixes to stateless session resumption handling. Use initial_ctx when 1949 issuing and attempting to decrypt tickets in case it has changed during 1950 servername handling. Use a non-zero length session ID when attempting 1951 stateless session resumption: this makes it possible to determine if 1952 a resumption has occurred immediately after receiving server hello 1953 (several places in OpenSSL subtly assume this) instead of later in 1954 the handshake. 1955 [Steve Henson] 1956 1957 *) The functions ENGINE_ctrl(), OPENSSL_isservice(), 1958 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error 1959 fixes for a few places where the return code is not checked 1960 correctly. 1961 [Julia Lawall <julia@diku.dk>] 1962 1963 *) Add --strict-warnings option to Configure script to include devteam 1964 warnings in other configurations. 1965 [Steve Henson] 1966 1967 *) Add support for --libdir option and LIBDIR variable in makefiles. This 1968 makes it possible to install openssl libraries in locations which 1969 have names other than "lib", for example "/usr/lib64" which some 1970 systems need. 1971 [Steve Henson, based on patch from Jeremy Utley] 1972 1973 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of 1974 X690 8.9.12 and can produce some misleading textual output of OIDs. 1975 [Steve Henson, reported by Dan Kaminsky] 1976 1977 *) Delete MD2 from algorithm tables. This follows the recommendation in 1978 several standards that it is not used in new applications due to 1979 several cryptographic weaknesses. For binary compatibility reasons 1980 the MD2 API is still compiled in by default. 1981 [Steve Henson] 1982 1983 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved 1984 and restored. 1985 [Steve Henson] 1986 1987 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and 1988 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name 1989 clash. 1990 [Guenter <lists@gknw.net>] 1991 1992 *) Fix the server certificate chain building code to use X509_verify_cert(), 1993 it used to have an ad-hoc builder which was unable to cope with anything 1994 other than a simple chain. 1995 [David Woodhouse <dwmw2@infradead.org>, Steve Henson] 1996 1997 *) Don't check self signed certificate signatures in X509_verify_cert() 1998 by default (a flag can override this): it just wastes time without 1999 adding any security. As a useful side effect self signed root CAs 2000 with non-FIPS digests are now usable in FIPS mode. 2001 [Steve Henson] 2002 2003 *) In dtls1_process_out_of_seq_message() the check if the current message 2004 is already buffered was missing. For every new message was memory 2005 allocated, allowing an attacker to perform an denial of service attack 2006 with sending out of seq handshake messages until there is no memory 2007 left. Additionally every future messege was buffered, even if the 2008 sequence number made no sense and would be part of another handshake. 2009 So only messages with sequence numbers less than 10 in advance will be 2010 buffered. (CVE-2009-1378) 2011 [Robin Seggelmann, discovered by Daniel Mentz] 2012 2013 *) Records are buffered if they arrive with a future epoch to be 2014 processed after finishing the corresponding handshake. There is 2015 currently no limitation to this buffer allowing an attacker to perform 2016 a DOS attack with sending records with future epochs until there is no 2017 memory left. This patch adds the pqueue_size() function to detemine 2018 the size of a buffer and limits the record buffer to 100 entries. 2019 (CVE-2009-1377) 2020 [Robin Seggelmann, discovered by Daniel Mentz] 2021 2022 *) Keep a copy of frag->msg_header.frag_len so it can be used after the 2023 parent structure is freed. (CVE-2009-1379) 2024 [Daniel Mentz] 2025 2026 *) Handle non-blocking I/O properly in SSL_shutdown() call. 2027 [Darryl Miles <darryl-mailinglists@netbauds.net>] 2028 2029 *) Add 2.5.4.* OIDs 2030 [Ilya O. <vrghost@gmail.com>] 2031 2032 Changes between 0.9.8k and 0.9.8l [5 Nov 2009] 2033 2034 *) Disable renegotiation completely - this fixes a severe security 2035 problem (CVE-2009-3555) at the cost of breaking all 2036 renegotiation. Renegotiation can be re-enabled by setting 2037 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at 2038 run-time. This is really not recommended unless you know what 2039 you're doing. 2040 [Ben Laurie] 2041 2042 Changes between 0.9.8j and 0.9.8k [25 Mar 2009] 2043 2044 *) Don't set val to NULL when freeing up structures, it is freed up by 2045 underlying code. If sizeof(void *) > sizeof(long) this can result in 2046 zeroing past the valid field. (CVE-2009-0789) 2047 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>] 2048 2049 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not 2050 checked correctly. This would allow some invalid signed attributes to 2051 appear to verify correctly. (CVE-2009-0591) 2052 [Ivan Nestlerode <inestlerode@us.ibm.com>] 2053 2054 *) Reject UniversalString and BMPString types with invalid lengths. This 2055 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have 2056 a legal length. (CVE-2009-0590) 2057 [Steve Henson] 2058 2059 *) Set S/MIME signing as the default purpose rather than setting it 2060 unconditionally. This allows applications to override it at the store 2061 level. 2062 [Steve Henson] 2063 2064 *) Permit restricted recursion of ASN1 strings. This is needed in practice 2065 to handle some structures. 2066 [Steve Henson] 2067 2068 *) Improve efficiency of mem_gets: don't search whole buffer each time 2069 for a '\n' 2070 [Jeremy Shapiro <jnshapir@us.ibm.com>] 2071 2072 *) New -hex option for openssl rand. 2073 [Matthieu Herrb] 2074 2075 *) Print out UTF8String and NumericString when parsing ASN1. 2076 [Steve Henson] 2077 2078 *) Support NumericString type for name components. 2079 [Steve Henson] 2080 2081 *) Allow CC in the environment to override the automatically chosen 2082 compiler. Note that nothing is done to ensure flags work with the 2083 chosen compiler. 2084 [Ben Laurie] 2085 2086 Changes between 0.9.8i and 0.9.8j [07 Jan 2009] 2087 2088 *) Properly check EVP_VerifyFinal() and similar return values 2089 (CVE-2008-5077). 2090 [Ben Laurie, Bodo Moeller, Google Security Team] 2091 2092 *) Enable TLS extensions by default. 2093 [Ben Laurie] 2094 2095 *) Allow the CHIL engine to be loaded, whether the application is 2096 multithreaded or not. (This does not release the developer from the 2097 obligation to set up the dynamic locking callbacks.) 2098 [Sander Temme <sander@temme.net>] 2099 2100 *) Use correct exit code if there is an error in dgst command. 2101 [Steve Henson; problem pointed out by Roland Dirlewanger] 2102 2103 *) Tweak Configure so that you need to say "experimental-jpake" to enable 2104 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications. 2105 [Bodo Moeller] 2106 2107 *) Add experimental JPAKE support, including demo authentication in 2108 s_client and s_server. 2109 [Ben Laurie] 2110 2111 *) Set the comparison function in v3_addr_canonize(). 2112 [Rob Austein <sra@hactrn.net>] 2113 2114 *) Add support for XMPP STARTTLS in s_client. 2115 [Philip Paeps <philip@freebsd.org>] 2116 2117 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior 2118 to ensure that even with this option, only ciphersuites in the 2119 server's preference list will be accepted. (Note that the option 2120 applies only when resuming a session, so the earlier behavior was 2121 just about the algorithm choice for symmetric cryptography.) 2122 [Bodo Moeller] 2123 2124 Changes between 0.9.8h and 0.9.8i [15 Sep 2008] 2125 2126 *) Fix NULL pointer dereference if a DTLS server received 2127 ChangeCipherSpec as first record (CVE-2009-1386). 2128 [PR #1679] 2129 2130 *) Fix a state transitition in s3_srvr.c and d1_srvr.c 2131 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...). 2132 [Nagendra Modadugu] 2133 2134 *) The fix in 0.9.8c that supposedly got rid of unsafe 2135 double-checked locking was incomplete for RSA blinding, 2136 addressing just one layer of what turns out to have been 2137 doubly unsafe triple-checked locking. 2138 2139 So now fix this for real by retiring the MONT_HELPER macro 2140 in crypto/rsa/rsa_eay.c. 2141 2142 [Bodo Moeller; problem pointed out by Marius Schilder] 2143 2144 *) Various precautionary measures: 2145 2146 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h). 2147 2148 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c). 2149 (NB: This would require knowledge of the secret session ticket key 2150 to exploit, in which case you'd be SOL either way.) 2151 2152 - Change bn_nist.c so that it will properly handle input BIGNUMs 2153 outside the expected range. 2154 2155 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG 2156 builds. 2157 2158 [Neel Mehta, Bodo Moeller] 2159 2160 *) Allow engines to be "soft loaded" - i.e. optionally don't die if 2161 the load fails. Useful for distros. 2162 [Ben Laurie and the FreeBSD team] 2163 2164 *) Add support for Local Machine Keyset attribute in PKCS#12 files. 2165 [Steve Henson] 2166 2167 *) Fix BN_GF2m_mod_arr() top-bit cleanup code. 2168 [Huang Ying] 2169 2170 *) Expand ENGINE to support engine supplied SSL client certificate functions. 2171 2172 This work was sponsored by Logica. 2173 [Steve Henson] 2174 2175 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows 2176 keystores. Support for SSL/TLS client authentication too. 2177 Not compiled unless enable-capieng specified to Configure. 2178 2179 This work was sponsored by Logica. 2180 [Steve Henson] 2181 2182 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using 2183 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain 2184 attribute creation routines such as certifcate requests and PKCS#12 2185 files. 2186 [Steve Henson] 2187 2188 Changes between 0.9.8g and 0.9.8h [28 May 2008] 2189 2190 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS 2191 handshake which could lead to a cilent crash as found using the 2192 Codenomicon TLS test suite (CVE-2008-1672) 2193 [Steve Henson, Mark Cox] 2194 2195 *) Fix double free in TLS server name extensions which could lead to 2196 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891) 2197 [Joe Orton] 2198 2199 *) Clear error queue in SSL_CTX_use_certificate_chain_file() 2200 2201 Clear the error queue to ensure that error entries left from 2202 older function calls do not interfere with the correct operation. 2203 [Lutz Jaenicke, Erik de Castro Lopo] 2204 2205 *) Remove root CA certificates of commercial CAs: 2206 2207 The OpenSSL project does not recommend any specific CA and does not 2208 have any policy with respect to including or excluding any CA. 2209 Therefore it does not make any sense to ship an arbitrary selection 2210 of root CA certificates with the OpenSSL software. 2211 [Lutz Jaenicke] 2212 2213 *) RSA OAEP patches to fix two separate invalid memory reads. 2214 The first one involves inputs when 'lzero' is greater than 2215 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes 2216 before the beginning of from). The second one involves inputs where 2217 the 'db' section contains nothing but zeroes (there is a one-byte 2218 invalid read after the end of 'db'). 2219 [Ivan Nestlerode <inestlerode@us.ibm.com>] 2220 2221 *) Partial backport from 0.9.9-dev: 2222 2223 Introduce bn_mul_mont (dedicated Montgomery multiplication 2224 procedure) as a candidate for BIGNUM assembler implementation. 2225 While 0.9.9-dev uses assembler for various architectures, only 2226 x86_64 is available by default here in the 0.9.8 branch, and 2227 32-bit x86 is available through a compile-time setting. 2228 2229 To try the 32-bit x86 assembler implementation, use Configure 2230 option "enable-montasm" (which exists only for this backport). 2231 2232 As "enable-montasm" for 32-bit x86 disclaims code stability 2233 anyway, in this constellation we activate additional code 2234 backported from 0.9.9-dev for further performance improvements, 2235 namely BN_from_montgomery_word. (To enable this otherwise, 2236 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".) 2237 2238 [Andy Polyakov (backport partially by Bodo Moeller)] 2239 2240 *) Add TLS session ticket callback. This allows an application to set 2241 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed 2242 values. This is useful for key rollover for example where several key 2243 sets may exist with different names. 2244 [Steve Henson] 2245 2246 *) Reverse ENGINE-internal logic for caching default ENGINE handles. 2247 This was broken until now in 0.9.8 releases, such that the only way 2248 a registered ENGINE could be used (assuming it initialises 2249 successfully on the host) was to explicitly set it as the default 2250 for the relevant algorithms. This is in contradiction with 0.9.7 2251 behaviour and the documentation. With this fix, when an ENGINE is 2252 registered into a given algorithm's table of implementations, the 2253 'uptodate' flag is reset so that auto-discovery will be used next 2254 time a new context for that algorithm attempts to select an 2255 implementation. 2256 [Ian Lister (tweaked by Geoff Thorpe)] 2257 2258 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9 2259 implemention in the following ways: 2260 2261 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be 2262 hard coded. 2263 2264 Lack of BER streaming support means one pass streaming processing is 2265 only supported if data is detached: setting the streaming flag is 2266 ignored for embedded content. 2267 2268 CMS support is disabled by default and must be explicitly enabled 2269 with the enable-cms configuration option. 2270 [Steve Henson] 2271 2272 *) Update the GMP engine glue to do direct copies between BIGNUM and 2273 mpz_t when openssl and GMP use the same limb size. Otherwise the 2274 existing "conversion via a text string export" trick is still used. 2275 [Paul Sheer <paulsheer@gmail.com>] 2276 2277 *) Zlib compression BIO. This is a filter BIO which compressed and 2278 uncompresses any data passed through it. 2279 [Steve Henson] 2280 2281 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement 2282 RFC3394 compatible AES key wrapping. 2283 [Steve Henson] 2284 2285 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0(): 2286 sets string data without copying. X509_ALGOR_set0() and 2287 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier) 2288 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data 2289 from an X509_ATTRIBUTE structure optionally checking it occurs only 2290 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied 2291 data. 2292 [Steve Henson] 2293 2294 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set() 2295 to get the expected BN_FLG_CONSTTIME behavior. 2296 [Bodo Moeller (Google)] 2297 2298 *) Netware support: 2299 2300 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets 2301 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT) 2302 - added some more tests to do_tests.pl 2303 - fixed RunningProcess usage so that it works with newer LIBC NDKs too 2304 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency 2305 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc, 2306 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc 2307 - various changes to netware.pl to enable gcc-cross builds on Win32 2308 platform 2309 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD) 2310 - various changes to fix missing prototype warnings 2311 - fixed x86nasm.pl to create correct asm files for NASM COFF output 2312 - added AES, WHIRLPOOL and CPUID assembler code to build files 2313 - added missing AES assembler make rules to mk1mf.pl 2314 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply 2315 [Guenter Knauf <eflash@gmx.net>] 2316 2317 *) Implement certificate status request TLS extension defined in RFC3546. 2318 A client can set the appropriate parameters and receive the encoded 2319 OCSP response via a callback. A server can query the supplied parameters 2320 and set the encoded OCSP response in the callback. Add simplified examples 2321 to s_client and s_server. 2322 [Steve Henson] 2323 2324 Changes between 0.9.8f and 0.9.8g [19 Oct 2007] 2325 2326 *) Fix various bugs: 2327 + Binary incompatibility of ssl_ctx_st structure 2328 + DTLS interoperation with non-compliant servers 2329 + Don't call get_session_cb() without proposed session 2330 + Fix ia64 assembler code 2331 [Andy Polyakov, Steve Henson] 2332 2333 Changes between 0.9.8e and 0.9.8f [11 Oct 2007] 2334 2335 *) DTLS Handshake overhaul. There were longstanding issues with 2336 OpenSSL DTLS implementation, which were making it impossible for 2337 RFC 4347 compliant client to communicate with OpenSSL server. 2338 Unfortunately just fixing these incompatibilities would "cut off" 2339 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e 2340 server keeps tolerating non RFC compliant syntax. The opposite is 2341 not true, 0.9.8f client can not communicate with earlier server. 2342 This update even addresses CVE-2007-4995. 2343 [Andy Polyakov] 2344 2345 *) Changes to avoid need for function casts in OpenSSL: some compilers 2346 (gcc 4.2 and later) reject their use. 2347 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>, 2348 Steve Henson] 2349 2350 *) Add RFC4507 support to OpenSSL. This includes the corrections in 2351 RFC4507bis. The encrypted ticket format is an encrypted encoded 2352 SSL_SESSION structure, that way new session features are automatically 2353 supported. 2354 2355 If a client application caches session in an SSL_SESSION structure 2356 support is transparent because tickets are now stored in the encoded 2357 SSL_SESSION. 2358 2359 The SSL_CTX structure automatically generates keys for ticket 2360 protection in servers so again support should be possible 2361 with no application modification. 2362 2363 If a client or server wishes to disable RFC4507 support then the option 2364 SSL_OP_NO_TICKET can be set. 2365 2366 Add a TLS extension debugging callback to allow the contents of any client 2367 or server extensions to be examined. 2368 2369 This work was sponsored by Google. 2370 [Steve Henson] 2371 2372 *) Add initial support for TLS extensions, specifically for the server_name 2373 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 2374 have new members for a host name. The SSL data structure has an 2375 additional member SSL_CTX *initial_ctx so that new sessions can be 2376 stored in that context to allow for session resumption, even after the 2377 SSL has been switched to a new SSL_CTX in reaction to a client's 2378 server_name extension. 2379 2380 New functions (subject to change): 2381 2382 SSL_get_servername() 2383 SSL_get_servername_type() 2384 SSL_set_SSL_CTX() 2385 2386 New CTRL codes and macros (subject to change): 2387 2388 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 2389 - SSL_CTX_set_tlsext_servername_callback() 2390 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 2391 - SSL_CTX_set_tlsext_servername_arg() 2392 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 2393 2394 openssl s_client has a new '-servername ...' option. 2395 2396 openssl s_server has new options '-servername_host ...', '-cert2 ...', 2397 '-key2 ...', '-servername_fatal' (subject to change). This allows 2398 testing the HostName extension for a specific single host name ('-cert' 2399 and '-key' remain fallbacks for handshakes without HostName 2400 negotiation). If the unrecogninzed_name alert has to be sent, this by 2401 default is a warning; it becomes fatal with the '-servername_fatal' 2402 option. 2403 2404 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson] 2405 2406 *) Add AES and SSE2 assembly language support to VC++ build. 2407 [Steve Henson] 2408 2409 *) Mitigate attack on final subtraction in Montgomery reduction. 2410 [Andy Polyakov] 2411 2412 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0 2413 (which previously caused an internal error). 2414 [Bodo Moeller] 2415 2416 *) Squeeze another 10% out of IGE mode when in != out. 2417 [Ben Laurie] 2418 2419 *) AES IGE mode speedup. 2420 [Dean Gaudet (Google)] 2421 2422 *) Add the Korean symmetric 128-bit cipher SEED (see 2423 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and 2424 add SEED ciphersuites from RFC 4162: 2425 2426 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA" 2427 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA" 2428 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA" 2429 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA" 2430 2431 To minimize changes between patchlevels in the OpenSSL 0.9.8 2432 series, SEED remains excluded from compilation unless OpenSSL 2433 is configured with 'enable-seed'. 2434 [KISA, Bodo Moeller] 2435 2436 *) Mitigate branch prediction attacks, which can be practical if a 2437 single processor is shared, allowing a spy process to extract 2438 information. For detailed background information, see 2439 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron, 2440 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL 2441 and Necessary Software Countermeasures"). The core of the change 2442 are new versions BN_div_no_branch() and 2443 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(), 2444 respectively, which are slower, but avoid the security-relevant 2445 conditional branches. These are automatically called by BN_div() 2446 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one 2447 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to 2448 remove a conditional branch. 2449 2450 BN_FLG_CONSTTIME is the new name for the previous 2451 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just 2452 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag 2453 in the exponent causes BN_mod_exp_mont() to use the alternative 2454 implementation in BN_mod_exp_mont_consttime().) The old name 2455 remains as a deprecated alias. 2456 2457 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general 2458 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses 2459 constant-time implementations for more than just exponentiation. 2460 Here too the old name is kept as a deprecated alias. 2461 2462 BN_BLINDING_new() will now use BN_dup() for the modulus so that 2463 the BN_BLINDING structure gets an independent copy of the 2464 modulus. This means that the previous "BIGNUM *m" argument to 2465 BN_BLINDING_new() and to BN_BLINDING_create_param() now 2466 essentially becomes "const BIGNUM *m", although we can't actually 2467 change this in the header file before 0.9.9. It allows 2468 RSA_setup_blinding() to use BN_with_flags() on the modulus to 2469 enable BN_FLG_CONSTTIME. 2470 2471 [Matthew D Wood (Intel Corp)] 2472 2473 *) In the SSL/TLS server implementation, be strict about session ID 2474 context matching (which matters if an application uses a single 2475 external cache for different purposes). Previously, 2476 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was 2477 set. This did ensure strict client verification, but meant that, 2478 with applications using a single external cache for quite 2479 different requirements, clients could circumvent ciphersuite 2480 restrictions for a given session ID context by starting a session 2481 in a different context. 2482 [Bodo Moeller] 2483 2484 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 2485 a ciphersuite string such as "DEFAULT:RSA" cannot enable 2486 authentication-only ciphersuites. 2487 [Bodo Moeller] 2488 2489 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was 2490 not complete and could lead to a possible single byte overflow 2491 (CVE-2007-5135) [Ben Laurie] 2492 2493 Changes between 0.9.8d and 0.9.8e [23 Feb 2007] 2494 2495 *) Since AES128 and AES256 (and similarly Camellia128 and 2496 Camellia256) share a single mask bit in the logic of 2497 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 2498 kludge to work properly if AES128 is available and AES256 isn't 2499 (or if Camellia128 is available and Camellia256 isn't). 2500 [Victor Duchovni] 2501 2502 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c 2503 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters): 2504 When a point or a seed is encoded in a BIT STRING, we need to 2505 prevent the removal of trailing zero bits to get the proper DER 2506 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case 2507 of a NamedBitList, for which trailing 0 bits need to be removed.) 2508 [Bodo Moeller] 2509 2510 *) Have SSL/TLS server implementation tolerate "mismatched" record 2511 protocol version while receiving ClientHello even if the 2512 ClientHello is fragmented. (The server can't insist on the 2513 particular protocol version it has chosen before the ServerHello 2514 message has informed the client about his choice.) 2515 [Bodo Moeller] 2516 2517 *) Add RFC 3779 support. 2518 [Rob Austein for ARIN, Ben Laurie] 2519 2520 *) Load error codes if they are not already present instead of using a 2521 static variable. This allows them to be cleanly unloaded and reloaded. 2522 Improve header file function name parsing. 2523 [Steve Henson] 2524 2525 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO 2526 or CAPABILITY handshake as required by RFCs. 2527 [Goetz Babin-Ebell] 2528 2529 Changes between 0.9.8c and 0.9.8d [28 Sep 2006] 2530 2531 *) Introduce limits to prevent malicious keys being able to 2532 cause a denial of service. (CVE-2006-2940) 2533 [Steve Henson, Bodo Moeller] 2534 2535 *) Fix ASN.1 parsing of certain invalid structures that can result 2536 in a denial of service. (CVE-2006-2937) [Steve Henson] 2537 2538 *) Fix buffer overflow in SSL_get_shared_ciphers() function. 2539 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team] 2540 2541 *) Fix SSL client code which could crash if connecting to a 2542 malicious SSLv2 server. (CVE-2006-4343) 2543 [Tavis Ormandy and Will Drewry, Google Security Team] 2544 2545 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites 2546 match only those. Before that, "AES256-SHA" would be interpreted 2547 as a pattern and match "AES128-SHA" too (since AES128-SHA got 2548 the same strength classification in 0.9.7h) as we currently only 2549 have a single AES bit in the ciphersuite description bitmap. 2550 That change, however, also applied to ciphersuite strings such as 2551 "RC4-MD5" that intentionally matched multiple ciphersuites -- 2552 namely, SSL 2.0 ciphersuites in addition to the more common ones 2553 from SSL 3.0/TLS 1.0. 2554 2555 So we change the selection algorithm again: Naming an explicit 2556 ciphersuite selects this one ciphersuite, and any other similar 2557 ciphersuite (same bitmap) from *other* protocol versions. 2558 Thus, "RC4-MD5" again will properly select both the SSL 2.0 2559 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite. 2560 2561 Since SSL 2.0 does not have any ciphersuites for which the 2562 128/256 bit distinction would be relevant, this works for now. 2563 The proper fix will be to use different bits for AES128 and 2564 AES256, which would have avoided the problems from the beginning; 2565 however, bits are scarce, so we can only do this in a new release 2566 (not just a patchlevel) when we can change the SSL_CIPHER 2567 definition to split the single 'unsigned long mask' bitmap into 2568 multiple values to extend the available space. 2569 2570 [Bodo Moeller] 2571 2572 Changes between 0.9.8b and 0.9.8c [05 Sep 2006] 2573 2574 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 2575 (CVE-2006-4339) [Ben Laurie and Google Security Team] 2576 2577 *) Add AES IGE and biIGE modes. 2578 [Ben Laurie] 2579 2580 *) Change the Unix randomness entropy gathering to use poll() when 2581 possible instead of select(), since the latter has some 2582 undesirable limitations. 2583 [Darryl Miles via Richard Levitte and Bodo Moeller] 2584 2585 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special 2586 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites 2587 cannot be implicitly activated as part of, e.g., the "AES" alias. 2588 However, please upgrade to OpenSSL 0.9.9[-dev] for 2589 non-experimental use of the ECC ciphersuites to get TLS extension 2590 support, which is required for curve and point format negotiation 2591 to avoid potential handshake problems. 2592 [Bodo Moeller] 2593 2594 *) Disable rogue ciphersuites: 2595 2596 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 2597 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 2598 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 2599 2600 The latter two were purportedly from 2601 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 2602 appear there. 2603 2604 Also deactivate the remaining ciphersuites from 2605 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 2606 unofficial, and the ID has long expired. 2607 [Bodo Moeller] 2608 2609 *) Fix RSA blinding Heisenbug (problems sometimes occured on 2610 dual-core machines) and other potential thread-safety issues. 2611 [Bodo Moeller] 2612 2613 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key 2614 versions), which is now available for royalty-free use 2615 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html). 2616 Also, add Camellia TLS ciphersuites from RFC 4132. 2617 2618 To minimize changes between patchlevels in the OpenSSL 0.9.8 2619 series, Camellia remains excluded from compilation unless OpenSSL 2620 is configured with 'enable-camellia'. 2621 [NTT] 2622 2623 *) Disable the padding bug check when compression is in use. The padding 2624 bug check assumes the first packet is of even length, this is not 2625 necessarily true if compresssion is enabled and can result in false 2626 positives causing handshake failure. The actual bug test is ancient 2627 code so it is hoped that implementations will either have fixed it by 2628 now or any which still have the bug do not support compression. 2629 [Steve Henson] 2630 2631 Changes between 0.9.8a and 0.9.8b [04 May 2006] 2632 2633 *) When applying a cipher rule check to see if string match is an explicit 2634 cipher suite and only match that one cipher suite if it is. 2635 [Steve Henson] 2636 2637 *) Link in manifests for VC++ if needed. 2638 [Austin Ziegler <halostatue@gmail.com>] 2639 2640 *) Update support for ECC-based TLS ciphersuites according to 2641 draft-ietf-tls-ecc-12.txt with proposed changes (but without 2642 TLS extensions, which are supported starting with the 0.9.9 2643 branch, not in the OpenSSL 0.9.8 branch). 2644 [Douglas Stebila] 2645 2646 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support 2647 opaque EVP_CIPHER_CTX handling. 2648 [Steve Henson] 2649 2650 *) Fixes and enhancements to zlib compression code. We now only use 2651 "zlib1.dll" and use the default __cdecl calling convention on Win32 2652 to conform with the standards mentioned here: 2653 http://www.zlib.net/DLL_FAQ.txt 2654 Static zlib linking now works on Windows and the new --with-zlib-include 2655 --with-zlib-lib options to Configure can be used to supply the location 2656 of the headers and library. Gracefully handle case where zlib library 2657 can't be loaded. 2658 [Steve Henson] 2659 2660 *) Several fixes and enhancements to the OID generation code. The old code 2661 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't 2662 handle numbers larger than ULONG_MAX, truncated printing and had a 2663 non standard OBJ_obj2txt() behaviour. 2664 [Steve Henson] 2665 2666 *) Add support for building of engines under engine/ as shared libraries 2667 under VC++ build system. 2668 [Steve Henson] 2669 2670 *) Corrected the numerous bugs in the Win32 path splitter in DSO. 2671 Hopefully, we will not see any false combination of paths any more. 2672 [Richard Levitte] 2673 2674 Changes between 0.9.8 and 0.9.8a [11 Oct 2005] 2675 2676 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 2677 (part of SSL_OP_ALL). This option used to disable the 2678 countermeasure against man-in-the-middle protocol-version 2679 rollback in the SSL 2.0 server implementation, which is a bad 2680 idea. (CVE-2005-2969) 2681 2682 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 2683 for Information Security, National Institute of Advanced Industrial 2684 Science and Technology [AIST], Japan)] 2685 2686 *) Add two function to clear and return the verify parameter flags. 2687 [Steve Henson] 2688 2689 *) Keep cipherlists sorted in the source instead of sorting them at 2690 runtime, thus removing the need for a lock. 2691 [Nils Larsch] 2692 2693 *) Avoid some small subgroup attacks in Diffie-Hellman. 2694 [Nick Mathewson and Ben Laurie] 2695 2696 *) Add functions for well-known primes. 2697 [Nick Mathewson] 2698 2699 *) Extended Windows CE support. 2700 [Satoshi Nakamura and Andy Polyakov] 2701 2702 *) Initialize SSL_METHOD structures at compile time instead of during 2703 runtime, thus removing the need for a lock. 2704 [Steve Henson] 2705 2706 *) Make PKCS7_decrypt() work even if no certificate is supplied by 2707 attempting to decrypt each encrypted key in turn. Add support to 2708 smime utility. 2709 [Steve Henson] 2710 2711 Changes between 0.9.7h and 0.9.8 [05 Jul 2005] 2712 2713 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after 2714 OpenSSL 0.9.8.] 2715 2716 *) Add libcrypto.pc and libssl.pc for those who feel they need them. 2717 [Richard Levitte] 2718 2719 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private 2720 key into the same file any more. 2721 [Richard Levitte] 2722 2723 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors. 2724 [Andy Polyakov] 2725 2726 *) Add -utf8 command line and config file option to 'ca'. 2727 [Stefan <stf@udoma.org] 2728 2729 *) Removed the macro des_crypt(), as it seems to conflict with some 2730 libraries. Use DES_crypt(). 2731 [Richard Levitte] 2732 2733 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This 2734 involves renaming the source and generated shared-libs for 2735 both. The engines will accept the corrected or legacy ids 2736 ('ncipher' and '4758_cca' respectively) when binding. NB, 2737 this only applies when building 'shared'. 2738 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe] 2739 2740 *) Add attribute functions to EVP_PKEY structure. Modify 2741 PKCS12_create() to recognize a CSP name attribute and 2742 use it. Make -CSP option work again in pkcs12 utility. 2743 [Steve Henson] 2744 2745 *) Add new functionality to the bn blinding code: 2746 - automatic re-creation of the BN_BLINDING parameters after 2747 a fixed number of uses (currently 32) 2748 - add new function for parameter creation 2749 - introduce flags to control the update behaviour of the 2750 BN_BLINDING parameters 2751 - hide BN_BLINDING structure 2752 Add a second BN_BLINDING slot to the RSA structure to improve 2753 performance when a single RSA object is shared among several 2754 threads. 2755 [Nils Larsch] 2756 2757 *) Add support for DTLS. 2758 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie] 2759 2760 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1) 2761 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file() 2762 [Walter Goulet] 2763 2764 *) Remove buggy and incompletet DH cert support from 2765 ssl/ssl_rsa.c and ssl/s3_both.c 2766 [Nils Larsch] 2767 2768 *) Use SHA-1 instead of MD5 as the default digest algorithm for 2769 the apps/openssl applications. 2770 [Nils Larsch] 2771 2772 *) Compile clean with "-Wall -Wmissing-prototypes 2773 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently 2774 DEBUG_SAFESTACK must also be set. 2775 [Ben Laurie] 2776 2777 *) Change ./Configure so that certain algorithms can be disabled by default. 2778 The new counterpiece to "no-xxx" is "enable-xxx". 2779 2780 The patented RC5 and MDC2 algorithms will now be disabled unless 2781 "enable-rc5" and "enable-mdc2", respectively, are specified. 2782 2783 (IDEA remains enabled despite being patented. This is because IDEA 2784 is frequently required for interoperability, and there is no license 2785 fee for non-commercial use. As before, "no-idea" can be used to 2786 avoid this algorithm.) 2787 2788 [Bodo Moeller] 2789 2790 *) Add processing of proxy certificates (see RFC 3820). This work was 2791 sponsored by KTH (The Royal Institute of Technology in Stockholm) and 2792 EGEE (Enabling Grids for E-science in Europe). 2793 [Richard Levitte] 2794 2795 *) RC4 performance overhaul on modern architectures/implementations, such 2796 as Intel P4, IA-64 and AMD64. 2797 [Andy Polyakov] 2798 2799 *) New utility extract-section.pl. This can be used specify an alternative 2800 section number in a pod file instead of having to treat each file as 2801 a separate case in Makefile. This can be done by adding two lines to the 2802 pod file: 2803 2804 =for comment openssl_section:XXX 2805 2806 The blank line is mandatory. 2807 2808 [Steve Henson] 2809 2810 *) New arguments -certform, -keyform and -pass for s_client and s_server 2811 to allow alternative format key and certificate files and passphrase 2812 sources. 2813 [Steve Henson] 2814 2815 *) New structure X509_VERIFY_PARAM which combines current verify parameters, 2816 update associated structures and add various utility functions. 2817 2818 Add new policy related verify parameters, include policy checking in 2819 standard verify code. Enhance 'smime' application with extra parameters 2820 to support policy checking and print out. 2821 [Steve Henson] 2822 2823 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3 2824 Nehemiah processors. These extensions support AES encryption in hardware 2825 as well as RNG (though RNG support is currently disabled). 2826 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov] 2827 2828 *) Deprecate BN_[get|set]_params() functions (they were ignored internally). 2829 [Geoff Thorpe] 2830 2831 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented. 2832 [Andy Polyakov and a number of other people] 2833 2834 *) Improved PowerPC platform support. Most notably BIGNUM assembler 2835 implementation contributed by IBM. 2836 [Suresh Chari, Peter Waltenberg, Andy Polyakov] 2837 2838 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public 2839 exponent rather than 'unsigned long'. There is a corresponding change to 2840 the new 'rsa_keygen' element of the RSA_METHOD structure. 2841 [Jelte Jansen, Geoff Thorpe] 2842 2843 *) Functionality for creating the initial serial number file is now 2844 moved from CA.pl to the 'ca' utility with a new option -create_serial. 2845 2846 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial 2847 number file to 1, which is bound to cause problems. To avoid 2848 the problems while respecting compatibility between different 0.9.7 2849 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in 2850 CA.pl for serial number initialization. With the new release 0.9.8, 2851 we can fix the problem directly in the 'ca' utility.) 2852 [Steve Henson] 2853 2854 *) Reduced header interdepencies by declaring more opaque objects in 2855 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will 2856 give fewer recursive includes, which could break lazy source code - so 2857 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always, 2858 developers should define this symbol when building and using openssl to 2859 ensure they track the recommended behaviour, interfaces, [etc], but 2860 backwards-compatible behaviour prevails when this isn't defined. 2861 [Geoff Thorpe] 2862 2863 *) New function X509_POLICY_NODE_print() which prints out policy nodes. 2864 [Steve Henson] 2865 2866 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality. 2867 This will generate a random key of the appropriate length based on the 2868 cipher context. The EVP_CIPHER can provide its own random key generation 2869 routine to support keys of a specific form. This is used in the des and 2870 3des routines to generate a key of the correct parity. Update S/MIME 2871 code to use new functions and hence generate correct parity DES keys. 2872 Add EVP_CHECK_DES_KEY #define to return an error if the key is not 2873 valid (weak or incorrect parity). 2874 [Steve Henson] 2875 2876 *) Add a local set of CRLs that can be used by X509_verify_cert() as well 2877 as looking them up. This is useful when the verified structure may contain 2878 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs 2879 present unless the new PKCS7_NO_CRL flag is asserted. 2880 [Steve Henson] 2881 2882 *) Extend ASN1 oid configuration module. It now additionally accepts the 2883 syntax: 2884 2885 shortName = some long name, 1.2.3.4 2886 [Steve Henson] 2887 2888 *) Reimplemented the BN_CTX implementation. There is now no more static 2889 limitation on the number of variables it can handle nor the depth of the 2890 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack 2891 information can now expand as required, and rather than having a single 2892 static array of bignums, BN_CTX now uses a linked-list of such arrays 2893 allowing it to expand on demand whilst maintaining the usefulness of 2894 BN_CTX's "bundling". 2895 [Geoff Thorpe] 2896 2897 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD 2898 to allow all RSA operations to function using a single BN_CTX. 2899 [Geoff Thorpe] 2900 2901 *) Preliminary support for certificate policy evaluation and checking. This 2902 is initially intended to pass the tests outlined in "Conformance Testing 2903 of Relying Party Client Certificate Path Processing Logic" v1.07. 2904 [Steve Henson] 2905 2906 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and 2907 remained unused and not that useful. A variety of other little bignum 2908 tweaks and fixes have also been made continuing on from the audit (see 2909 below). 2910 [Geoff Thorpe] 2911 2912 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with 2913 associated ASN1, EVP and SSL functions and old ASN1 macros. 2914 [Richard Levitte] 2915 2916 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results, 2917 and this should never fail. So the return value from the use of 2918 BN_set_word() (which can fail due to needless expansion) is now deprecated; 2919 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro. 2920 [Geoff Thorpe] 2921 2922 *) BN_CTX_get() should return zero-valued bignums, providing the same 2923 initialised value as BN_new(). 2924 [Geoff Thorpe, suggested by Ulf M�ller] 2925 2926 *) Support for inhibitAnyPolicy certificate extension. 2927 [Steve Henson] 2928 2929 *) An audit of the BIGNUM code is underway, for which debugging code is 2930 enabled when BN_DEBUG is defined. This makes stricter enforcements on what 2931 is considered valid when processing BIGNUMs, and causes execution to 2932 assert() when a problem is discovered. If BN_DEBUG_RAND is defined, 2933 further steps are taken to deliberately pollute unused data in BIGNUM 2934 structures to try and expose faulty code further on. For now, openssl will 2935 (in its default mode of operation) continue to tolerate the inconsistent 2936 forms that it has tolerated in the past, but authors and packagers should 2937 consider trying openssl and their own applications when compiled with 2938 these debugging symbols defined. It will help highlight potential bugs in 2939 their own code, and will improve the test coverage for OpenSSL itself. At 2940 some point, these tighter rules will become openssl's default to improve 2941 maintainability, though the assert()s and other overheads will remain only 2942 in debugging configurations. See bn.h for more details. 2943 [Geoff Thorpe, Nils Larsch, Ulf M�ller] 2944 2945 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure 2946 that can only be obtained through BN_CTX_new() (which implicitly 2947 initialises it). The presence of this function only made it possible 2948 to overwrite an existing structure (and cause memory leaks). 2949 [Geoff Thorpe] 2950 2951 *) Because of the callback-based approach for implementing LHASH as a 2952 template type, lh_insert() adds opaque objects to hash-tables and 2953 lh_doall() or lh_doall_arg() are typically used with a destructor callback 2954 to clean up those corresponding objects before destroying the hash table 2955 (and losing the object pointers). So some over-zealous constifications in 2956 LHASH have been relaxed so that lh_insert() does not take (nor store) the 2957 objects as "const" and the lh_doall[_arg] callback wrappers are not 2958 prototyped to have "const" restrictions on the object pointers they are 2959 given (and so aren't required to cast them away any more). 2960 [Geoff Thorpe] 2961 2962 *) The tmdiff.h API was so ugly and minimal that our own timing utility 2963 (speed) prefers to use its own implementation. The two implementations 2964 haven't been consolidated as yet (volunteers?) but the tmdiff API has had 2965 its object type properly exposed (MS_TM) instead of casting to/from "char 2966 *". This may still change yet if someone realises MS_TM and "ms_time_***" 2967 aren't necessarily the greatest nomenclatures - but this is what was used 2968 internally to the implementation so I've used that for now. 2969 [Geoff Thorpe] 2970 2971 *) Ensure that deprecated functions do not get compiled when 2972 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of 2973 the self-tests were still using deprecated key-generation functions so 2974 these have been updated also. 2975 [Geoff Thorpe] 2976 2977 *) Reorganise PKCS#7 code to separate the digest location functionality 2978 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest(). 2979 New function PKCS7_set_digest() to set the digest type for PKCS#7 2980 digestedData type. Add additional code to correctly generate the 2981 digestedData type and add support for this type in PKCS7 initialization 2982 functions. 2983 [Steve Henson] 2984 2985 *) New function PKCS7_set0_type_other() this initializes a PKCS7 2986 structure of type "other". 2987 [Steve Henson] 2988 2989 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making 2990 sure the loop does correctly stop and breaking ("division by zero") 2991 modulus operations are not performed. The (pre-generated) prime 2992 table crypto/bn/bn_prime.h was already correct, but it could not be 2993 re-generated on some platforms because of the "division by zero" 2994 situation in the script. 2995 [Ralf S. Engelschall] 2996 2997 *) Update support for ECC-based TLS ciphersuites according to 2998 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with 2999 SHA-1 now is only used for "small" curves (where the 3000 representation of a field element takes up to 24 bytes); for 3001 larger curves, the field element resulting from ECDH is directly 3002 used as premaster secret. 3003 [Douglas Stebila (Sun Microsystems Laboratories)] 3004 3005 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2 3006 curve secp160r1 to the tests. 3007 [Douglas Stebila (Sun Microsystems Laboratories)] 3008 3009 *) Add the possibility to load symbols globally with DSO. 3010 [G�tz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte] 3011 3012 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better 3013 control of the error stack. 3014 [Richard Levitte] 3015 3016 *) Add support for STORE in ENGINE. 3017 [Richard Levitte] 3018 3019 *) Add the STORE type. The intention is to provide a common interface 3020 to certificate and key stores, be they simple file-based stores, or 3021 HSM-type store, or LDAP stores, or... 3022 NOTE: The code is currently UNTESTED and isn't really used anywhere. 3023 [Richard Levitte] 3024 3025 *) Add a generic structure called OPENSSL_ITEM. This can be used to 3026 pass a list of arguments to any function as well as provide a way 3027 for a function to pass data back to the caller. 3028 [Richard Levitte] 3029 3030 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup() 3031 works like BUF_strdup() but can be used to duplicate a portion of 3032 a string. The copy gets NUL-terminated. BUF_memdup() duplicates 3033 a memory area. 3034 [Richard Levitte] 3035 3036 *) Add the function sk_find_ex() which works like sk_find(), but will 3037 return an index to an element even if an exact match couldn't be 3038 found. The index is guaranteed to point at the element where the 3039 searched-for key would be inserted to preserve sorting order. 3040 [Richard Levitte] 3041 3042 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but 3043 takes an extra flags argument for optional functionality. Currently, 3044 the following flags are defined: 3045 3046 OBJ_BSEARCH_VALUE_ON_NOMATCH 3047 This one gets OBJ_bsearch_ex() to return a pointer to the first 3048 element where the comparing function returns a negative or zero 3049 number. 3050 3051 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH 3052 This one gets OBJ_bsearch_ex() to return a pointer to the first 3053 element where the comparing function returns zero. This is useful 3054 if there are more than one element where the comparing function 3055 returns zero. 3056 [Richard Levitte] 3057 3058 *) Make it possible to create self-signed certificates with 'openssl ca' 3059 in such a way that the self-signed certificate becomes part of the 3060 CA database and uses the same mechanisms for serial number generation 3061 as all other certificate signing. The new flag '-selfsign' enables 3062 this functionality. Adapt CA.sh and CA.pl.in. 3063 [Richard Levitte] 3064 3065 *) Add functionality to check the public key of a certificate request 3066 against a given private. This is useful to check that a certificate 3067 request can be signed by that key (self-signing). 3068 [Richard Levitte] 3069 3070 *) Make it possible to have multiple active certificates with the same 3071 subject in the CA index file. This is done only if the keyword 3072 'unique_subject' is set to 'no' in the main CA section (default 3073 if 'CA_default') of the configuration file. The value is saved 3074 with the database itself in a separate index attribute file, 3075 named like the index file with '.attr' appended to the name. 3076 [Richard Levitte] 3077 3078 *) Generate muti valued AVAs using '+' notation in config files for 3079 req and dirName. 3080 [Steve Henson] 3081 3082 *) Support for nameConstraints certificate extension. 3083 [Steve Henson] 3084 3085 *) Support for policyConstraints certificate extension. 3086 [Steve Henson] 3087 3088 *) Support for policyMappings certificate extension. 3089 [Steve Henson] 3090 3091 *) Make sure the default DSA_METHOD implementation only uses its 3092 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL, 3093 and change its own handlers to be NULL so as to remove unnecessary 3094 indirection. This lets alternative implementations fallback to the 3095 default implementation more easily. 3096 [Geoff Thorpe] 3097 3098 *) Support for directoryName in GeneralName related extensions 3099 in config files. 3100 [Steve Henson] 3101 3102 *) Make it possible to link applications using Makefile.shared. 3103 Make that possible even when linking against static libraries! 3104 [Richard Levitte] 3105 3106 *) Support for single pass processing for S/MIME signing. This now 3107 means that S/MIME signing can be done from a pipe, in addition 3108 cleartext signing (multipart/signed type) is effectively streaming 3109 and the signed data does not need to be all held in memory. 3110 3111 This is done with a new flag PKCS7_STREAM. When this flag is set 3112 PKCS7_sign() only initializes the PKCS7 structure and the actual signing 3113 is done after the data is output (and digests calculated) in 3114 SMIME_write_PKCS7(). 3115 [Steve Henson] 3116 3117 *) Add full support for -rpath/-R, both in shared libraries and 3118 applications, at least on the platforms where it's known how 3119 to do it. 3120 [Richard Levitte] 3121 3122 *) In crypto/ec/ec_mult.c, implement fast point multiplication with 3123 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult() 3124 will now compute a table of multiples of the generator that 3125 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul() 3126 faster (notably in the case of a single point multiplication, 3127 scalar * generator). 3128 [Nils Larsch, Bodo Moeller] 3129 3130 *) IPv6 support for certificate extensions. The various extensions 3131 which use the IP:a.b.c.d can now take IPv6 addresses using the 3132 formats of RFC1884 2.2 . IPv6 addresses are now also displayed 3133 correctly. 3134 [Steve Henson] 3135 3136 *) Added an ENGINE that implements RSA by performing private key 3137 exponentiations with the GMP library. The conversions to and from 3138 GMP's mpz_t format aren't optimised nor are any montgomery forms 3139 cached, and on x86 it appears OpenSSL's own performance has caught up. 3140 However there are likely to be other architectures where GMP could 3141 provide a boost. This ENGINE is not built in by default, but it can be 3142 specified at Configure time and should be accompanied by the necessary 3143 linker additions, eg; 3144 ./config -DOPENSSL_USE_GMP -lgmp 3145 [Geoff Thorpe] 3146 3147 *) "openssl engine" will not display ENGINE/DSO load failure errors when 3148 testing availability of engines with "-t" - the old behaviour is 3149 produced by increasing the feature's verbosity with "-tt". 3150 [Geoff Thorpe] 3151 3152 *) ECDSA routines: under certain error conditions uninitialized BN objects 3153 could be freed. Solution: make sure initialization is performed early 3154 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de> 3155 via PR#459) 3156 [Lutz Jaenicke] 3157 3158 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD 3159 and DH_METHOD (eg. by ENGINE implementations) to override the normal 3160 software implementations. For DSA and DH, parameter generation can 3161 also be overriden by providing the appropriate method callbacks. 3162 [Geoff Thorpe] 3163 3164 *) Change the "progress" mechanism used in key-generation and 3165 primality testing to functions that take a new BN_GENCB pointer in 3166 place of callback/argument pairs. The new API functions have "_ex" 3167 postfixes and the older functions are reimplemented as wrappers for 3168 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide 3169 declarations of the old functions to help (graceful) attempts to 3170 migrate to the new functions. Also, the new key-generation API 3171 functions operate on a caller-supplied key-structure and return 3172 success/failure rather than returning a key or NULL - this is to 3173 help make "keygen" another member function of RSA_METHOD etc. 3174 3175 Example for using the new callback interface: 3176 3177 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...; 3178 void *my_arg = ...; 3179 BN_GENCB my_cb; 3180 3181 BN_GENCB_set(&my_cb, my_callback, my_arg); 3182 3183 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb); 3184 /* For the meaning of a, b in calls to my_callback(), see the 3185 * documentation of the function that calls the callback. 3186 * cb will point to my_cb; my_arg can be retrieved as cb->arg. 3187 * my_callback should return 1 if it wants BN_is_prime_ex() 3188 * to continue, or 0 to stop. 3189 */ 3190 3191 [Geoff Thorpe] 3192 3193 *) Change the ZLIB compression method to be stateful, and make it 3194 available to TLS with the number defined in 3195 draft-ietf-tls-compression-04.txt. 3196 [Richard Levitte] 3197 3198 *) Add the ASN.1 structures and functions for CertificatePair, which 3199 is defined as follows (according to X.509_4thEditionDraftV6.pdf): 3200 3201 CertificatePair ::= SEQUENCE { 3202 forward [0] Certificate OPTIONAL, 3203 reverse [1] Certificate OPTIONAL, 3204 -- at least one of the pair shall be present -- } 3205 3206 Also implement the PEM functions to read and write certificate 3207 pairs, and defined the PEM tag as "CERTIFICATE PAIR". 3208 3209 This needed to be defined, mostly for the sake of the LDAP 3210 attribute crossCertificatePair, but may prove useful elsewhere as 3211 well. 3212 [Richard Levitte] 3213 3214 *) Make it possible to inhibit symlinking of shared libraries in 3215 Makefile.shared, for Cygwin's sake. 3216 [Richard Levitte] 3217 3218 *) Extend the BIGNUM API by creating a function 3219 void BN_set_negative(BIGNUM *a, int neg); 3220 and a macro that behave like 3221 int BN_is_negative(const BIGNUM *a); 3222 3223 to avoid the need to access 'a->neg' directly in applications. 3224 [Nils Larsch] 3225 3226 *) Implement fast modular reduction for pseudo-Mersenne primes 3227 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c). 3228 EC_GROUP_new_curve_GFp() will now automatically use this 3229 if applicable. 3230 [Nils Larsch <nla@trustcenter.de>] 3231 3232 *) Add new lock type (CRYPTO_LOCK_BN). 3233 [Bodo Moeller] 3234 3235 *) Change the ENGINE framework to automatically load engines 3236 dynamically from specific directories unless they could be 3237 found to already be built in or loaded. Move all the 3238 current engines except for the cryptodev one to a new 3239 directory engines/. 3240 The engines in engines/ are built as shared libraries if 3241 the "shared" options was given to ./Configure or ./config. 3242 Otherwise, they are inserted in libcrypto.a. 3243 /usr/local/ssl/engines is the default directory for dynamic 3244 engines, but that can be overriden at configure time through 3245 the usual use of --prefix and/or --openssldir, and at run 3246 time with the environment variable OPENSSL_ENGINES. 3247 [Geoff Thorpe and Richard Levitte] 3248 3249 *) Add Makefile.shared, a helper makefile to build shared 3250 libraries. Addapt Makefile.org. 3251 [Richard Levitte] 3252 3253 *) Add version info to Win32 DLLs. 3254 [Peter 'Luna' Runestig" <peter@runestig.com>] 3255 3256 *) Add new 'medium level' PKCS#12 API. Certificates and keys 3257 can be added using this API to created arbitrary PKCS#12 3258 files while avoiding the low level API. 3259 3260 New options to PKCS12_create(), key or cert can be NULL and 3261 will then be omitted from the output file. The encryption 3262 algorithm NIDs can be set to -1 for no encryption, the mac 3263 iteration count can be set to 0 to omit the mac. 3264 3265 Enhance pkcs12 utility by making the -nokeys and -nocerts 3266 options work when creating a PKCS#12 file. New option -nomac 3267 to omit the mac, NONE can be set for an encryption algorithm. 3268 New code is modified to use the enhanced PKCS12_create() 3269 instead of the low level API. 3270 [Steve Henson] 3271 3272 *) Extend ASN1 encoder to support indefinite length constructed 3273 encoding. This can output sequences tags and octet strings in 3274 this form. Modify pk7_asn1.c to support indefinite length 3275 encoding. This is experimental and needs additional code to 3276 be useful, such as an ASN1 bio and some enhanced streaming 3277 PKCS#7 code. 3278 3279 Extend template encode functionality so that tagging is passed 3280 down to the template encoder. 3281 [Steve Henson] 3282 3283 *) Let 'openssl req' fail if an argument to '-newkey' is not 3284 recognized instead of using RSA as a default. 3285 [Bodo Moeller] 3286 3287 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt. 3288 As these are not official, they are not included in "ALL"; 3289 the "ECCdraft" ciphersuite group alias can be used to select them. 3290 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)] 3291 3292 *) Add ECDH engine support. 3293 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)] 3294 3295 *) Add ECDH in new directory crypto/ecdh/. 3296 [Douglas Stebila (Sun Microsystems Laboratories)] 3297 3298 *) Let BN_rand_range() abort with an error after 100 iterations 3299 without success (which indicates a broken PRNG). 3300 [Bodo Moeller] 3301 3302 *) Change BN_mod_sqrt() so that it verifies that the input value 3303 is really the square of the return value. (Previously, 3304 BN_mod_sqrt would show GIGO behaviour.) 3305 [Bodo Moeller] 3306 3307 *) Add named elliptic curves over binary fields from X9.62, SECG, 3308 and WAP/WTLS; add OIDs that were still missing. 3309 3310 [Sheueling Chang Shantz and Douglas Stebila 3311 (Sun Microsystems Laboratories)] 3312 3313 *) Extend the EC library for elliptic curves over binary fields 3314 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/). 3315 New EC_METHOD: 3316 3317 EC_GF2m_simple_method 3318 3319 New API functions: 3320 3321 EC_GROUP_new_curve_GF2m 3322 EC_GROUP_set_curve_GF2m 3323 EC_GROUP_get_curve_GF2m 3324 EC_POINT_set_affine_coordinates_GF2m 3325 EC_POINT_get_affine_coordinates_GF2m 3326 EC_POINT_set_compressed_coordinates_GF2m 3327 3328 Point compression for binary fields is disabled by default for 3329 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to 3330 enable it). 3331 3332 As binary polynomials are represented as BIGNUMs, various members 3333 of the EC_GROUP and EC_POINT data structures can be shared 3334 between the implementations for prime fields and binary fields; 3335 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m) 3336 are essentially identical to their ..._GFp counterparts. 3337 (For simplicity, the '..._GFp' prefix has been dropped from 3338 various internal method names.) 3339 3340 An internal 'field_div' method (similar to 'field_mul' and 3341 'field_sqr') has been added; this is used only for binary fields. 3342 3343 [Sheueling Chang Shantz and Douglas Stebila 3344 (Sun Microsystems Laboratories)] 3345 3346 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult() 3347 through methods ('mul', 'precompute_mult'). 3348 3349 The generic implementations (now internally called 'ec_wNAF_mul' 3350 and 'ec_wNAF_precomputed_mult') remain the default if these 3351 methods are undefined. 3352 3353 [Sheueling Chang Shantz and Douglas Stebila 3354 (Sun Microsystems Laboratories)] 3355 3356 *) New function EC_GROUP_get_degree, which is defined through 3357 EC_METHOD. For curves over prime fields, this returns the bit 3358 length of the modulus. 3359 3360 [Sheueling Chang Shantz and Douglas Stebila 3361 (Sun Microsystems Laboratories)] 3362 3363 *) New functions EC_GROUP_dup, EC_POINT_dup. 3364 (These simply call ..._new and ..._copy). 3365 3366 [Sheueling Chang Shantz and Douglas Stebila 3367 (Sun Microsystems Laboratories)] 3368 3369 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c. 3370 Polynomials are represented as BIGNUMs (where the sign bit is not 3371 used) in the following functions [macros]: 3372 3373 BN_GF2m_add 3374 BN_GF2m_sub [= BN_GF2m_add] 3375 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr] 3376 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr] 3377 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr] 3378 BN_GF2m_mod_inv 3379 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr] 3380 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr] 3381 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr] 3382 BN_GF2m_cmp [= BN_ucmp] 3383 3384 (Note that only the 'mod' functions are actually for fields GF(2^m). 3385 BN_GF2m_add() is misnomer, but this is for the sake of consistency.) 3386 3387 For some functions, an the irreducible polynomial defining a 3388 field can be given as an 'unsigned int[]' with strictly 3389 decreasing elements giving the indices of those bits that are set; 3390 i.e., p[] represents the polynomial 3391 f(t) = t^p[0] + t^p[1] + ... + t^p[k] 3392 where 3393 p[0] > p[1] > ... > p[k] = 0. 3394 This applies to the following functions: 3395 3396 BN_GF2m_mod_arr 3397 BN_GF2m_mod_mul_arr 3398 BN_GF2m_mod_sqr_arr 3399 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv] 3400 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div] 3401 BN_GF2m_mod_exp_arr 3402 BN_GF2m_mod_sqrt_arr 3403 BN_GF2m_mod_solve_quad_arr 3404 BN_GF2m_poly2arr 3405 BN_GF2m_arr2poly 3406 3407 Conversion can be performed by the following functions: 3408 3409 BN_GF2m_poly2arr 3410 BN_GF2m_arr2poly 3411 3412 bntest.c has additional tests for binary polynomial arithmetic. 3413 3414 Two implementations for BN_GF2m_mod_div() are available. 3415 The default algorithm simply uses BN_GF2m_mod_inv() and 3416 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only 3417 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the 3418 copyright notice in crypto/bn/bn_gf2m.c before enabling it). 3419 3420 [Sheueling Chang Shantz and Douglas Stebila 3421 (Sun Microsystems Laboratories)] 3422 3423 *) Add new error code 'ERR_R_DISABLED' that can be used when some 3424 functionality is disabled at compile-time. 3425 [Douglas Stebila <douglas.stebila@sun.com>] 3426 3427 *) Change default behaviour of 'openssl asn1parse' so that more 3428 information is visible when viewing, e.g., a certificate: 3429 3430 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump' 3431 mode the content of non-printable OCTET STRINGs is output in a 3432 style similar to INTEGERs, but with '[HEX DUMP]' prepended to 3433 avoid the appearance of a printable string. 3434 [Nils Larsch <nla@trustcenter.de>] 3435 3436 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access 3437 functions 3438 EC_GROUP_set_asn1_flag() 3439 EC_GROUP_get_asn1_flag() 3440 EC_GROUP_set_point_conversion_form() 3441 EC_GROUP_get_point_conversion_form() 3442 These control ASN1 encoding details: 3443 - Curves (i.e., groups) are encoded explicitly unless asn1_flag 3444 has been set to OPENSSL_EC_NAMED_CURVE. 3445 - Points are encoded in uncompressed form by default; options for 3446 asn1_for are as for point2oct, namely 3447 POINT_CONVERSION_COMPRESSED 3448 POINT_CONVERSION_UNCOMPRESSED 3449 POINT_CONVERSION_HYBRID 3450 3451 Also add 'seed' and 'seed_len' members to EC_GROUP with access 3452 functions 3453 EC_GROUP_set_seed() 3454 EC_GROUP_get0_seed() 3455 EC_GROUP_get_seed_len() 3456 This is used only for ASN1 purposes (so far). 3457 [Nils Larsch <nla@trustcenter.de>] 3458 3459 *) Add 'field_type' member to EC_METHOD, which holds the NID 3460 of the appropriate field type OID. The new function 3461 EC_METHOD_get_field_type() returns this value. 3462 [Nils Larsch <nla@trustcenter.de>] 3463 3464 *) Add functions 3465 EC_POINT_point2bn() 3466 EC_POINT_bn2point() 3467 EC_POINT_point2hex() 3468 EC_POINT_hex2point() 3469 providing useful interfaces to EC_POINT_point2oct() and 3470 EC_POINT_oct2point(). 3471 [Nils Larsch <nla@trustcenter.de>] 3472 3473 *) Change internals of the EC library so that the functions 3474 EC_GROUP_set_generator() 3475 EC_GROUP_get_generator() 3476 EC_GROUP_get_order() 3477 EC_GROUP_get_cofactor() 3478 are implemented directly in crypto/ec/ec_lib.c and not dispatched 3479 to methods, which would lead to unnecessary code duplication when 3480 adding different types of curves. 3481 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller] 3482 3483 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM 3484 arithmetic, and such that modified wNAFs are generated 3485 (which avoid length expansion in many cases). 3486 [Bodo Moeller] 3487 3488 *) Add a function EC_GROUP_check_discriminant() (defined via 3489 EC_METHOD) that verifies that the curve discriminant is non-zero. 3490 3491 Add a function EC_GROUP_check() that makes some sanity tests 3492 on a EC_GROUP, its generator and order. This includes 3493 EC_GROUP_check_discriminant(). 3494 [Nils Larsch <nla@trustcenter.de>] 3495 3496 *) Add ECDSA in new directory crypto/ecdsa/. 3497 3498 Add applications 'openssl ecparam' and 'openssl ecdsa' 3499 (these are based on 'openssl dsaparam' and 'openssl dsa'). 3500 3501 ECDSA support is also included in various other files across the 3502 library. Most notably, 3503 - 'openssl req' now has a '-newkey ecdsa:file' option; 3504 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA; 3505 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and 3506 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make 3507 them suitable for ECDSA where domain parameters must be 3508 extracted before the specific public key; 3509 - ECDSA engine support has been added. 3510 [Nils Larsch <nla@trustcenter.de>] 3511 3512 *) Include some named elliptic curves, and add OIDs from X9.62, 3513 SECG, and WAP/WTLS. Each curve can be obtained from the new 3514 function 3515 EC_GROUP_new_by_curve_name(), 3516 and the list of available named curves can be obtained with 3517 EC_get_builtin_curves(). 3518 Also add a 'curve_name' member to EC_GROUP objects, which can be 3519 accessed via 3520 EC_GROUP_set_curve_name() 3521 EC_GROUP_get_curve_name() 3522 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller] 3523 3524 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 3525 was actually never needed) and in BN_mul(). The removal in BN_mul() 3526 required a small change in bn_mul_part_recursive() and the addition 3527 of the functions bn_cmp_part_words(), bn_sub_part_words() and 3528 bn_add_part_words(), which do the same thing as bn_cmp_words(), 3529 bn_sub_words() and bn_add_words() except they take arrays with 3530 differing sizes. 3531 [Richard Levitte] 3532 3533 Changes between 0.9.7l and 0.9.7m [23 Feb 2007] 3534 3535 *) Cleanse PEM buffers before freeing them since they may contain 3536 sensitive data. 3537 [Benjamin Bennett <ben@psc.edu>] 3538 3539 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 3540 a ciphersuite string such as "DEFAULT:RSA" cannot enable 3541 authentication-only ciphersuites. 3542 [Bodo Moeller] 3543 3544 *) Since AES128 and AES256 share a single mask bit in the logic of 3545 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 3546 kludge to work properly if AES128 is available and AES256 isn't. 3547 [Victor Duchovni] 3548 3549 *) Expand security boundary to match 1.1.1 module. 3550 [Steve Henson] 3551 3552 *) Remove redundant features: hash file source, editing of test vectors 3553 modify fipsld to use external fips_premain.c signature. 3554 [Steve Henson] 3555 3556 *) New perl script mkfipsscr.pl to create shell scripts or batch files to 3557 run algorithm test programs. 3558 [Steve Henson] 3559 3560 *) Make algorithm test programs more tolerant of whitespace. 3561 [Steve Henson] 3562 3563 *) Have SSL/TLS server implementation tolerate "mismatched" record 3564 protocol version while receiving ClientHello even if the 3565 ClientHello is fragmented. (The server can't insist on the 3566 particular protocol version it has chosen before the ServerHello 3567 message has informed the client about his choice.) 3568 [Bodo Moeller] 3569 3570 *) Load error codes if they are not already present instead of using a 3571 static variable. This allows them to be cleanly unloaded and reloaded. 3572 [Steve Henson] 3573 3574 Changes between 0.9.7k and 0.9.7l [28 Sep 2006] 3575 3576 *) Introduce limits to prevent malicious keys being able to 3577 cause a denial of service. (CVE-2006-2940) 3578 [Steve Henson, Bodo Moeller] 3579 3580 *) Fix ASN.1 parsing of certain invalid structures that can result 3581 in a denial of service. (CVE-2006-2937) [Steve Henson] 3582 3583 *) Fix buffer overflow in SSL_get_shared_ciphers() function. 3584 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team] 3585 3586 *) Fix SSL client code which could crash if connecting to a 3587 malicious SSLv2 server. (CVE-2006-4343) 3588 [Tavis Ormandy and Will Drewry, Google Security Team] 3589 3590 *) Change ciphersuite string processing so that an explicit 3591 ciphersuite selects this one ciphersuite (so that "AES256-SHA" 3592 will no longer include "AES128-SHA"), and any other similar 3593 ciphersuite (same bitmap) from *other* protocol versions (so that 3594 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the 3595 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining 3596 changes from 0.9.8b and 0.9.8d. 3597 [Bodo Moeller] 3598 3599 Changes between 0.9.7j and 0.9.7k [05 Sep 2006] 3600 3601 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 3602 (CVE-2006-4339) [Ben Laurie and Google Security Team] 3603 3604 *) Change the Unix randomness entropy gathering to use poll() when 3605 possible instead of select(), since the latter has some 3606 undesirable limitations. 3607 [Darryl Miles via Richard Levitte and Bodo Moeller] 3608 3609 *) Disable rogue ciphersuites: 3610 3611 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 3612 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 3613 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 3614 3615 The latter two were purportedly from 3616 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 3617 appear there. 3618 3619 Also deactive the remaining ciphersuites from 3620 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 3621 unofficial, and the ID has long expired. 3622 [Bodo Moeller] 3623 3624 *) Fix RSA blinding Heisenbug (problems sometimes occured on 3625 dual-core machines) and other potential thread-safety issues. 3626 [Bodo Moeller] 3627 3628 Changes between 0.9.7i and 0.9.7j [04 May 2006] 3629 3630 *) Adapt fipsld and the build system to link against the validated FIPS 3631 module in FIPS mode. 3632 [Steve Henson] 3633 3634 *) Fixes for VC++ 2005 build under Windows. 3635 [Steve Henson] 3636 3637 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make 3638 from a Windows bash shell such as MSYS. It is autodetected from the 3639 "config" script when run from a VC++ environment. Modify standard VC++ 3640 build to use fipscanister.o from the GNU make build. 3641 [Steve Henson] 3642 3643 Changes between 0.9.7h and 0.9.7i [14 Oct 2005] 3644 3645 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS. 3646 The value now differs depending on if you build for FIPS or not. 3647 BEWARE! A program linked with a shared FIPSed libcrypto can't be 3648 safely run with a non-FIPSed libcrypto, as it may crash because of 3649 the difference induced by this change. 3650 [Andy Polyakov] 3651 3652 Changes between 0.9.7g and 0.9.7h [11 Oct 2005] 3653 3654 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 3655 (part of SSL_OP_ALL). This option used to disable the 3656 countermeasure against man-in-the-middle protocol-version 3657 rollback in the SSL 2.0 server implementation, which is a bad 3658 idea. (CVE-2005-2969) 3659 3660 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 3661 for Information Security, National Institute of Advanced Industrial 3662 Science and Technology [AIST], Japan)] 3663 3664 *) Minimal support for X9.31 signatures and PSS padding modes. This is 3665 mainly for FIPS compliance and not fully integrated at this stage. 3666 [Steve Henson] 3667 3668 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform 3669 the exponentiation using a fixed-length exponent. (Otherwise, 3670 the information leaked through timing could expose the secret key 3671 after many signatures; cf. Bleichenbacher's attack on DSA with 3672 biased k.) 3673 [Bodo Moeller] 3674 3675 *) Make a new fixed-window mod_exp implementation the default for 3676 RSA, DSA, and DH private-key operations so that the sequence of 3677 squares and multiplies and the memory access pattern are 3678 independent of the particular secret key. This will mitigate 3679 cache-timing and potential related attacks. 3680 3681 BN_mod_exp_mont_consttime() is the new exponentiation implementation, 3682 and this is automatically used by BN_mod_exp_mont() if the new flag 3683 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH 3684 will use this BN flag for private exponents unless the flag 3685 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or 3686 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set. 3687 3688 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller] 3689 3690 *) Change the client implementation for SSLv23_method() and 3691 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0 3692 Client Hello message format if the SSL_OP_NO_SSLv2 option is set. 3693 (Previously, the SSL 2.0 backwards compatible Client Hello 3694 message format would be used even with SSL_OP_NO_SSLv2.) 3695 [Bodo Moeller] 3696 3697 *) Add support for smime-type MIME parameter in S/MIME messages which some 3698 clients need. 3699 [Steve Henson] 3700 3701 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in 3702 a threadsafe manner. Modify rsa code to use new function and add calls 3703 to dsa and dh code (which had race conditions before). 3704 [Steve Henson] 3705 3706 *) Include the fixed error library code in the C error file definitions 3707 instead of fixing them up at runtime. This keeps the error code 3708 structures constant. 3709 [Steve Henson] 3710 3711 Changes between 0.9.7f and 0.9.7g [11 Apr 2005] 3712 3713 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after 3714 OpenSSL 0.9.8.] 3715 3716 *) Fixes for newer kerberos headers. NB: the casts are needed because 3717 the 'length' field is signed on one version and unsigned on another 3718 with no (?) obvious way to tell the difference, without these VC++ 3719 complains. Also the "definition" of FAR (blank) is no longer included 3720 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up 3721 some needed definitions. 3722 [Steve Henson] 3723 3724 *) Undo Cygwin change. 3725 [Ulf M�ller] 3726 3727 *) Added support for proxy certificates according to RFC 3820. 3728 Because they may be a security thread to unaware applications, 3729 they must be explicitely allowed in run-time. See 3730 docs/HOWTO/proxy_certificates.txt for further information. 3731 [Richard Levitte] 3732 3733 Changes between 0.9.7e and 0.9.7f [22 Mar 2005] 3734 3735 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating 3736 server and client random values. Previously 3737 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in 3738 less random data when sizeof(time_t) > 4 (some 64 bit platforms). 3739 3740 This change has negligible security impact because: 3741 3742 1. Server and client random values still have 24 bytes of pseudo random 3743 data. 3744 3745 2. Server and client random values are sent in the clear in the initial 3746 handshake. 3747 3748 3. The master secret is derived using the premaster secret (48 bytes in 3749 size for static RSA ciphersuites) as well as client server and random 3750 values. 3751 3752 The OpenSSL team would like to thank the UK NISCC for bringing this issue 3753 to our attention. 3754 3755 [Stephen Henson, reported by UK NISCC] 3756 3757 *) Use Windows randomness collection on Cygwin. 3758 [Ulf M�ller] 3759 3760 *) Fix hang in EGD/PRNGD query when communication socket is closed 3761 prematurely by EGD/PRNGD. 3762 [Darren Tucker <dtucker@zip.com.au> via Lutz J�nicke, resolves #1014] 3763 3764 *) Prompt for pass phrases when appropriate for PKCS12 input format. 3765 [Steve Henson] 3766 3767 *) Back-port of selected performance improvements from development 3768 branch, as well as improved support for PowerPC platforms. 3769 [Andy Polyakov] 3770 3771 *) Add lots of checks for memory allocation failure, error codes to indicate 3772 failure and freeing up memory if a failure occurs. 3773 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson] 3774 3775 *) Add new -passin argument to dgst. 3776 [Steve Henson] 3777 3778 *) Perform some character comparisons of different types in X509_NAME_cmp: 3779 this is needed for some certificates that reencode DNs into UTF8Strings 3780 (in violation of RFC3280) and can't or wont issue name rollover 3781 certificates. 3782 [Steve Henson] 3783 3784 *) Make an explicit check during certificate validation to see that 3785 the CA setting in each certificate on the chain is correct. As a 3786 side effect always do the following basic checks on extensions, 3787 not just when there's an associated purpose to the check: 3788 3789 - if there is an unhandled critical extension (unless the user 3790 has chosen to ignore this fault) 3791 - if the path length has been exceeded (if one is set at all) 3792 - that certain extensions fit the associated purpose (if one has 3793 been given) 3794 [Richard Levitte] 3795 3796 Changes between 0.9.7d and 0.9.7e [25 Oct 2004] 3797 3798 *) Avoid a race condition when CRLs are checked in a multi threaded 3799 environment. This would happen due to the reordering of the revoked 3800 entries during signature checking and serial number lookup. Now the 3801 encoding is cached and the serial number sort performed under a lock. 3802 Add new STACK function sk_is_sorted(). 3803 [Steve Henson] 3804 3805 *) Add Delta CRL to the extension code. 3806 [Steve Henson] 3807 3808 *) Various fixes to s3_pkt.c so alerts are sent properly. 3809 [David Holmes <d.holmes@f5.com>] 3810 3811 *) Reduce the chances of duplicate issuer name and serial numbers (in 3812 violation of RFC3280) using the OpenSSL certificate creation utilities. 3813 This is done by creating a random 64 bit value for the initial serial 3814 number when a serial number file is created or when a self signed 3815 certificate is created using 'openssl req -x509'. The initial serial 3816 number file is created using 'openssl x509 -next_serial' in CA.pl 3817 rather than being initialized to 1. 3818 [Steve Henson] 3819 3820 Changes between 0.9.7c and 0.9.7d [17 Mar 2004] 3821 3822 *) Fix null-pointer assignment in do_change_cipher_spec() revealed 3823 by using the Codenomicon TLS Test Tool (CVE-2004-0079) 3824 [Joe Orton, Steve Henson] 3825 3826 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites 3827 (CVE-2004-0112) 3828 [Joe Orton, Steve Henson] 3829 3830 *) Make it possible to have multiple active certificates with the same 3831 subject in the CA index file. This is done only if the keyword 3832 'unique_subject' is set to 'no' in the main CA section (default 3833 if 'CA_default') of the configuration file. The value is saved 3834 with the database itself in a separate index attribute file, 3835 named like the index file with '.attr' appended to the name. 3836 [Richard Levitte] 3837 3838 *) X509 verify fixes. Disable broken certificate workarounds when 3839 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if 3840 keyUsage extension present. Don't accept CRLs with unhandled critical 3841 extensions: since verify currently doesn't process CRL extensions this 3842 rejects a CRL with *any* critical extensions. Add new verify error codes 3843 for these cases. 3844 [Steve Henson] 3845 3846 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue. 3847 A clarification of RFC2560 will require the use of OCTET STRINGs and 3848 some implementations cannot handle the current raw format. Since OpenSSL 3849 copies and compares OCSP nonces as opaque blobs without any attempt at 3850 parsing them this should not create any compatibility issues. 3851 [Steve Henson] 3852 3853 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when 3854 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without 3855 this HMAC (and other) operations are several times slower than OpenSSL 3856 < 0.9.7. 3857 [Steve Henson] 3858 3859 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex(). 3860 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>] 3861 3862 *) Use the correct content when signing type "other". 3863 [Steve Henson] 3864 3865 Changes between 0.9.7b and 0.9.7c [30 Sep 2003] 3866 3867 *) Fix various bugs revealed by running the NISCC test suite: 3868 3869 Stop out of bounds reads in the ASN1 code when presented with 3870 invalid tags (CVE-2003-0543 and CVE-2003-0544). 3871 3872 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545). 3873 3874 If verify callback ignores invalid public key errors don't try to check 3875 certificate signature with the NULL public key. 3876 3877 [Steve Henson] 3878 3879 *) New -ignore_err option in ocsp application to stop the server 3880 exiting on the first error in a request. 3881 [Steve Henson] 3882 3883 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 3884 if the server requested one: as stated in TLS 1.0 and SSL 3.0 3885 specifications. 3886 [Steve Henson] 3887 3888 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 3889 extra data after the compression methods not only for TLS 1.0 3890 but also for SSL 3.0 (as required by the specification). 3891 [Bodo Moeller; problem pointed out by Matthias Loepfe] 3892 3893 *) Change X509_certificate_type() to mark the key as exported/exportable 3894 when it's 512 *bits* long, not 512 bytes. 3895 [Richard Levitte] 3896 3897 *) Change AES_cbc_encrypt() so it outputs exact multiple of 3898 blocks during encryption. 3899 [Richard Levitte] 3900 3901 *) Various fixes to base64 BIO and non blocking I/O. On write 3902 flushes were not handled properly if the BIO retried. On read 3903 data was not being buffered properly and had various logic bugs. 3904 This also affects blocking I/O when the data being decoded is a 3905 certain size. 3906 [Steve Henson] 3907 3908 *) Various S/MIME bugfixes and compatibility changes: 3909 output correct application/pkcs7 MIME type if 3910 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures. 3911 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening 3912 of files as .eml work). Correctly handle very long lines in MIME 3913 parser. 3914 [Steve Henson] 3915 3916 Changes between 0.9.7a and 0.9.7b [10 Apr 2003] 3917 3918 *) Countermeasure against the Klima-Pokorny-Rosa extension of 3919 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 3920 a protocol version number mismatch like a decryption error 3921 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 3922 [Bodo Moeller] 3923 3924 *) Turn on RSA blinding by default in the default implementation 3925 to avoid a timing attack. Applications that don't want it can call 3926 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 3927 They would be ill-advised to do so in most cases. 3928 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller] 3929 3930 *) Change RSA blinding code so that it works when the PRNG is not 3931 seeded (in this case, the secret RSA exponent is abused as 3932 an unpredictable seed -- if it is not unpredictable, there 3933 is no point in blinding anyway). Make RSA blinding thread-safe 3934 by remembering the creator's thread ID in rsa->blinding and 3935 having all other threads use local one-time blinding factors 3936 (this requires more computation than sharing rsa->blinding, but 3937 avoids excessive locking; and if an RSA object is not shared 3938 between threads, blinding will still be very fast). 3939 [Bodo Moeller] 3940 3941 *) Fixed a typo bug that would cause ENGINE_set_default() to set an 3942 ENGINE as defaults for all supported algorithms irrespective of 3943 the 'flags' parameter. 'flags' is now honoured, so applications 3944 should make sure they are passing it correctly. 3945 [Geoff Thorpe] 3946 3947 *) Target "mingw" now allows native Windows code to be generated in 3948 the Cygwin environment as well as with the MinGW compiler. 3949 [Ulf Moeller] 3950 3951 Changes between 0.9.7 and 0.9.7a [19 Feb 2003] 3952 3953 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 3954 via timing by performing a MAC computation even if incorrrect 3955 block cipher padding has been found. This is a countermeasure 3956 against active attacks where the attacker has to distinguish 3957 between bad padding and a MAC verification error. (CVE-2003-0078) 3958 3959 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 3960 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 3961 Martin Vuagnoux (EPFL, Ilion)] 3962 3963 *) Make the no-err option work as intended. The intention with no-err 3964 is not to have the whole error stack handling routines removed from 3965 libcrypto, it's only intended to remove all the function name and 3966 reason texts, thereby removing some of the footprint that may not 3967 be interesting if those errors aren't displayed anyway. 3968 3969 NOTE: it's still possible for any application or module to have it's 3970 own set of error texts inserted. The routines are there, just not 3971 used by default when no-err is given. 3972 [Richard Levitte] 3973 3974 *) Add support for FreeBSD on IA64. 3975 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454] 3976 3977 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT 3978 Kerberos function mit_des_cbc_cksum(). Before this change, 3979 the value returned by DES_cbc_cksum() was like the one from 3980 mit_des_cbc_cksum(), except the bytes were swapped. 3981 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte] 3982 3983 *) Allow an application to disable the automatic SSL chain building. 3984 Before this a rather primitive chain build was always performed in 3985 ssl3_output_cert_chain(): an application had no way to send the 3986 correct chain if the automatic operation produced an incorrect result. 3987 3988 Now the chain builder is disabled if either: 3989 3990 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert(). 3991 3992 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set. 3993 3994 The reasoning behind this is that an application would not want the 3995 auto chain building to take place if extra chain certificates are 3996 present and it might also want a means of sending no additional 3997 certificates (for example the chain has two certificates and the 3998 root is omitted). 3999 [Steve Henson] 4000 4001 *) Add the possibility to build without the ENGINE framework. 4002 [Steven Reddie <smr@essemer.com.au> via Richard Levitte] 4003 4004 *) Under Win32 gmtime() can return NULL: check return value in 4005 OPENSSL_gmtime(). Add error code for case where gmtime() fails. 4006 [Steve Henson] 4007 4008 *) DSA routines: under certain error conditions uninitialized BN objects 4009 could be freed. Solution: make sure initialization is performed early 4010 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>, 4011 Nils Larsch <nla@trustcenter.de> via PR#459) 4012 [Lutz Jaenicke] 4013 4014 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly 4015 checked on reconnect on the client side, therefore session resumption 4016 could still fail with a "ssl session id is different" error. This 4017 behaviour is masked when SSL_OP_ALL is used due to 4018 SSL_OP_MICROSOFT_SESS_ID_BUG being set. 4019 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 4020 followup to PR #377. 4021 [Lutz Jaenicke] 4022 4023 *) IA-32 assembler support enhancements: unified ELF targets, support 4024 for SCO/Caldera platforms, fix for Cygwin shared build. 4025 [Andy Polyakov] 4026 4027 *) Add support for FreeBSD on sparc64. As a consequence, support for 4028 FreeBSD on non-x86 processors is separate from x86 processors on 4029 the config script, much like the NetBSD support. 4030 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>] 4031 4032 Changes between 0.9.6h and 0.9.7 [31 Dec 2002] 4033 4034 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after 4035 OpenSSL 0.9.7.] 4036 4037 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED 4038 code (06) was taken as the first octet of the session ID and the last 4039 octet was ignored consequently. As a result SSLv2 client side session 4040 caching could not have worked due to the session ID mismatch between 4041 client and server. 4042 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 4043 PR #377. 4044 [Lutz Jaenicke] 4045 4046 *) Change the declaration of needed Kerberos libraries to use EX_LIBS 4047 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is 4048 removed entirely. 4049 [Richard Levitte] 4050 4051 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it 4052 seems that in spite of existing for more than a year, many application 4053 author have done nothing to provide the necessary callbacks, which 4054 means that this particular engine will not work properly anywhere. 4055 This is a very unfortunate situation which forces us, in the name 4056 of usability, to give the hw_ncipher.c a static lock, which is part 4057 of libcrypto. 4058 NOTE: This is for the 0.9.7 series ONLY. This hack will never 4059 appear in 0.9.8 or later. We EXPECT application authors to have 4060 dealt properly with this when 0.9.8 is released (unless we actually 4061 make such changes in the libcrypto locking code that changes will 4062 have to be made anyway). 4063 [Richard Levitte] 4064 4065 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content 4066 octets have been read, EOF or an error occurs. Without this change 4067 some truncated ASN1 structures will not produce an error. 4068 [Steve Henson] 4069 4070 *) Disable Heimdal support, since it hasn't been fully implemented. 4071 Still give the possibility to force the use of Heimdal, but with 4072 warnings and a request that patches get sent to openssl-dev. 4073 [Richard Levitte] 4074 4075 *) Add the VC-CE target, introduce the WINCE sysname, and add 4076 INSTALL.WCE and appropriate conditionals to make it build. 4077 [Steven Reddie <smr@essemer.com.au> via Richard Levitte] 4078 4079 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and 4080 cygssl-x.y.z.dll, where x, y and z are the major, minor and 4081 edit numbers of the version. 4082 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte] 4083 4084 *) Introduce safe string copy and catenation functions 4085 (BUF_strlcpy() and BUF_strlcat()). 4086 [Ben Laurie (CHATS) and Richard Levitte] 4087 4088 *) Avoid using fixed-size buffers for one-line DNs. 4089 [Ben Laurie (CHATS)] 4090 4091 *) Add BUF_MEM_grow_clean() to avoid information leakage when 4092 resizing buffers containing secrets, and use where appropriate. 4093 [Ben Laurie (CHATS)] 4094 4095 *) Avoid using fixed size buffers for configuration file location. 4096 [Ben Laurie (CHATS)] 4097 4098 *) Avoid filename truncation for various CA files. 4099 [Ben Laurie (CHATS)] 4100 4101 *) Use sizeof in preference to magic numbers. 4102 [Ben Laurie (CHATS)] 4103 4104 *) Avoid filename truncation in cert requests. 4105 [Ben Laurie (CHATS)] 4106 4107 *) Add assertions to check for (supposedly impossible) buffer 4108 overflows. 4109 [Ben Laurie (CHATS)] 4110 4111 *) Don't cache truncated DNS entries in the local cache (this could 4112 potentially lead to a spoofing attack). 4113 [Ben Laurie (CHATS)] 4114 4115 *) Fix various buffers to be large enough for hex/decimal 4116 representations in a platform independent manner. 4117 [Ben Laurie (CHATS)] 4118 4119 *) Add CRYPTO_realloc_clean() to avoid information leakage when 4120 resizing buffers containing secrets, and use where appropriate. 4121 [Ben Laurie (CHATS)] 4122 4123 *) Add BIO_indent() to avoid much slightly worrying code to do 4124 indents. 4125 [Ben Laurie (CHATS)] 4126 4127 *) Convert sprintf()/BIO_puts() to BIO_printf(). 4128 [Ben Laurie (CHATS)] 4129 4130 *) buffer_gets() could terminate with the buffer only half 4131 full. Fixed. 4132 [Ben Laurie (CHATS)] 4133 4134 *) Add assertions to prevent user-supplied crypto functions from 4135 overflowing internal buffers by having large block sizes, etc. 4136 [Ben Laurie (CHATS)] 4137 4138 *) New OPENSSL_assert() macro (similar to assert(), but enabled 4139 unconditionally). 4140 [Ben Laurie (CHATS)] 4141 4142 *) Eliminate unused copy of key in RC4. 4143 [Ben Laurie (CHATS)] 4144 4145 *) Eliminate unused and incorrectly sized buffers for IV in pem.h. 4146 [Ben Laurie (CHATS)] 4147 4148 *) Fix off-by-one error in EGD path. 4149 [Ben Laurie (CHATS)] 4150 4151 *) If RANDFILE path is too long, ignore instead of truncating. 4152 [Ben Laurie (CHATS)] 4153 4154 *) Eliminate unused and incorrectly sized X.509 structure 4155 CBCParameter. 4156 [Ben Laurie (CHATS)] 4157 4158 *) Eliminate unused and dangerous function knumber(). 4159 [Ben Laurie (CHATS)] 4160 4161 *) Eliminate unused and dangerous structure, KSSL_ERR. 4162 [Ben Laurie (CHATS)] 4163 4164 *) Protect against overlong session ID context length in an encoded 4165 session object. Since these are local, this does not appear to be 4166 exploitable. 4167 [Ben Laurie (CHATS)] 4168 4169 *) Change from security patch (see 0.9.6e below) that did not affect 4170 the 0.9.6 release series: 4171 4172 Remote buffer overflow in SSL3 protocol - an attacker could 4173 supply an oversized master key in Kerberos-enabled versions. 4174 (CVE-2002-0657) 4175 [Ben Laurie (CHATS)] 4176 4177 *) Change the SSL kerb5 codes to match RFC 2712. 4178 [Richard Levitte] 4179 4180 *) Make -nameopt work fully for req and add -reqopt switch. 4181 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson] 4182 4183 *) The "block size" for block ciphers in CFB and OFB mode should be 1. 4184 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>] 4185 4186 *) Make sure tests can be performed even if the corresponding algorithms 4187 have been removed entirely. This was also the last step to make 4188 OpenSSL compilable with DJGPP under all reasonable conditions. 4189 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>] 4190 4191 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT 4192 to allow version independent disabling of normally unselected ciphers, 4193 which may be activated as a side-effect of selecting a single cipher. 4194 4195 (E.g., cipher list string "RSA" enables ciphersuites that are left 4196 out of "ALL" because they do not provide symmetric encryption. 4197 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.) 4198 [Lutz Jaenicke, Bodo Moeller] 4199 4200 *) Add appropriate support for separate platform-dependent build 4201 directories. The recommended way to make a platform-dependent 4202 build directory is the following (tested on Linux), maybe with 4203 some local tweaks: 4204 4205 # Place yourself outside of the OpenSSL source tree. In 4206 # this example, the environment variable OPENSSL_SOURCE 4207 # is assumed to contain the absolute OpenSSL source directory. 4208 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`" 4209 cd objtree/"`uname -s`-`uname -r`-`uname -m`" 4210 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do 4211 mkdir -p `dirname $F` 4212 ln -s $OPENSSL_SOURCE/$F $F 4213 done 4214 4215 To be absolutely sure not to disturb the source tree, a "make clean" 4216 is a good thing. If it isn't successfull, don't worry about it, 4217 it probably means the source directory is very clean. 4218 [Richard Levitte] 4219 4220 *) Make sure any ENGINE control commands make local copies of string 4221 pointers passed to them whenever necessary. Otherwise it is possible 4222 the caller may have overwritten (or deallocated) the original string 4223 data when a later ENGINE operation tries to use the stored values. 4224 [G�tz Babin-Ebell <babinebell@trustcenter.de>] 4225 4226 *) Improve diagnostics in file reading and command-line digests. 4227 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>] 4228 4229 *) Add AES modes CFB and OFB to the object database. Correct an 4230 error in AES-CFB decryption. 4231 [Richard Levitte] 4232 4233 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this 4234 allows existing EVP_CIPHER_CTX structures to be reused after 4235 calling EVP_*Final(). This behaviour is used by encryption 4236 BIOs and some applications. This has the side effect that 4237 applications must explicitly clean up cipher contexts with 4238 EVP_CIPHER_CTX_cleanup() or they will leak memory. 4239 [Steve Henson] 4240 4241 *) Check the values of dna and dnb in bn_mul_recursive before calling 4242 bn_mul_comba (a non zero value means the a or b arrays do not contain 4243 n2 elements) and fallback to bn_mul_normal if either is not zero. 4244 [Steve Henson] 4245 4246 *) Fix escaping of non-ASCII characters when using the -subj option 4247 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>) 4248 [Lutz Jaenicke] 4249 4250 *) Make object definitions compliant to LDAP (RFC2256): SN is the short 4251 form for "surname", serialNumber has no short form. 4252 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798; 4253 therefore remove "mail" short name for "internet 7". 4254 The OID for unique identifiers in X509 certificates is 4255 x500UniqueIdentifier, not uniqueIdentifier. 4256 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>) 4257 [Lutz Jaenicke] 4258 4259 *) Add an "init" command to the ENGINE config module and auto initialize 4260 ENGINEs. Without any "init" command the ENGINE will be initialized 4261 after all ctrl commands have been executed on it. If init=1 the 4262 ENGINE is initailized at that point (ctrls before that point are run 4263 on the uninitialized ENGINE and after on the initialized one). If 4264 init=0 then the ENGINE will not be iniatialized at all. 4265 [Steve Henson] 4266 4267 *) Fix the 'app_verify_callback' interface so that the user-defined 4268 argument is actually passed to the callback: In the 4269 SSL_CTX_set_cert_verify_callback() prototype, the callback 4270 declaration has been changed from 4271 int (*cb)() 4272 into 4273 int (*cb)(X509_STORE_CTX *,void *); 4274 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call 4275 i=s->ctx->app_verify_callback(&ctx) 4276 has been changed into 4277 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg). 4278 4279 To update applications using SSL_CTX_set_cert_verify_callback(), 4280 a dummy argument can be added to their callback functions. 4281 [D. K. Smetters <smetters@parc.xerox.com>] 4282 4283 *) Added the '4758cca' ENGINE to support IBM 4758 cards. 4284 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe] 4285 4286 *) Add and OPENSSL_LOAD_CONF define which will cause 4287 OpenSSL_add_all_algorithms() to load the openssl.cnf config file. 4288 This allows older applications to transparently support certain 4289 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading. 4290 Two new functions OPENSSL_add_all_algorithms_noconf() which will never 4291 load the config file and OPENSSL_add_all_algorithms_conf() which will 4292 always load it have also been added. 4293 [Steve Henson] 4294 4295 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES. 4296 Adjust NIDs and EVP layer. 4297 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte] 4298 4299 *) Config modules support in openssl utility. 4300 4301 Most commands now load modules from the config file, 4302 though in a few (such as version) this isn't done 4303 because it couldn't be used for anything. 4304 4305 In the case of ca and req the config file used is 4306 the same as the utility itself: that is the -config 4307 command line option can be used to specify an 4308 alternative file. 4309 [Steve Henson] 4310 4311 *) Move default behaviour from OPENSSL_config(). If appname is NULL 4312 use "openssl_conf" if filename is NULL use default openssl config file. 4313 [Steve Henson] 4314 4315 *) Add an argument to OPENSSL_config() to allow the use of an alternative 4316 config section name. Add a new flag to tolerate a missing config file 4317 and move code to CONF_modules_load_file(). 4318 [Steve Henson] 4319 4320 *) Support for crypto accelerator cards from Accelerated Encryption 4321 Processing, www.aep.ie. (Use engine 'aep') 4322 The support was copied from 0.9.6c [engine] and adapted/corrected 4323 to work with the new engine framework. 4324 [AEP Inc. and Richard Levitte] 4325 4326 *) Support for SureWare crypto accelerator cards from Baltimore 4327 Technologies. (Use engine 'sureware') 4328 The support was copied from 0.9.6c [engine] and adapted 4329 to work with the new engine framework. 4330 [Richard Levitte] 4331 4332 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually 4333 make the newer ENGINE framework commands for the CHIL engine work. 4334 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte] 4335 4336 *) Make it possible to produce shared libraries on ReliantUNIX. 4337 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte] 4338 4339 *) Add the configuration target debug-linux-ppro. 4340 Make 'openssl rsa' use the general key loading routines 4341 implemented in apps.c, and make those routines able to 4342 handle the key format FORMAT_NETSCAPE and the variant 4343 FORMAT_IISSGC. 4344 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] 4345 4346 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 4347 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] 4348 4349 *) Add -keyform to rsautl, and document -engine. 4350 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>] 4351 4352 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new 4353 BIO_R_NO_SUCH_FILE error code rather than the generic 4354 ERR_R_SYS_LIB error code if fopen() fails with ENOENT. 4355 [Ben Laurie] 4356 4357 *) Add new functions 4358 ERR_peek_last_error 4359 ERR_peek_last_error_line 4360 ERR_peek_last_error_line_data. 4361 These are similar to 4362 ERR_peek_error 4363 ERR_peek_error_line 4364 ERR_peek_error_line_data, 4365 but report on the latest error recorded rather than the first one 4366 still in the error queue. 4367 [Ben Laurie, Bodo Moeller] 4368 4369 *) default_algorithms option in ENGINE config module. This allows things 4370 like: 4371 default_algorithms = ALL 4372 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS 4373 [Steve Henson] 4374 4375 *) Prelminary ENGINE config module. 4376 [Steve Henson] 4377 4378 *) New experimental application configuration code. 4379 [Steve Henson] 4380 4381 *) Change the AES code to follow the same name structure as all other 4382 symmetric ciphers, and behave the same way. Move everything to 4383 the directory crypto/aes, thereby obsoleting crypto/rijndael. 4384 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte] 4385 4386 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c. 4387 [Ben Laurie and Theo de Raadt] 4388 4389 *) Add option to output public keys in req command. 4390 [Massimiliano Pala madwolf@openca.org] 4391 4392 *) Use wNAFs in EC_POINTs_mul() for improved efficiency 4393 (up to about 10% better than before for P-192 and P-224). 4394 [Bodo Moeller] 4395 4396 *) New functions/macros 4397 4398 SSL_CTX_set_msg_callback(ctx, cb) 4399 SSL_CTX_set_msg_callback_arg(ctx, arg) 4400 SSL_set_msg_callback(ssl, cb) 4401 SSL_set_msg_callback_arg(ssl, arg) 4402 4403 to request calling a callback function 4404 4405 void cb(int write_p, int version, int content_type, 4406 const void *buf, size_t len, SSL *ssl, void *arg) 4407 4408 whenever a protocol message has been completely received 4409 (write_p == 0) or sent (write_p == 1). Here 'version' is the 4410 protocol version according to which the SSL library interprets 4411 the current protocol message (SSL2_VERSION, SSL3_VERSION, or 4412 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or 4413 the content type as defined in the SSL 3.0/TLS 1.0 protocol 4414 specification (change_cipher_spec(20), alert(21), handshake(22)). 4415 'buf' and 'len' point to the actual message, 'ssl' to the 4416 SSL object, and 'arg' is the application-defined value set by 4417 SSL[_CTX]_set_msg_callback_arg(). 4418 4419 'openssl s_client' and 'openssl s_server' have new '-msg' options 4420 to enable a callback that displays all protocol messages. 4421 [Bodo Moeller] 4422 4423 *) Change the shared library support so shared libraries are built as 4424 soon as the corresponding static library is finished, and thereby get 4425 openssl and the test programs linked against the shared library. 4426 This still only happens when the keyword "shard" has been given to 4427 the configuration scripts. 4428 4429 NOTE: shared library support is still an experimental thing, and 4430 backward binary compatibility is still not guaranteed. 4431 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte] 4432 4433 *) Add support for Subject Information Access extension. 4434 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>] 4435 4436 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero 4437 additional bytes when new memory had to be allocated, not just 4438 when reusing an existing buffer. 4439 [Bodo Moeller] 4440 4441 *) New command line and configuration option 'utf8' for the req command. 4442 This allows field values to be specified as UTF8 strings. 4443 [Steve Henson] 4444 4445 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel 4446 runs for the former and machine-readable output for the latter. 4447 [Ben Laurie] 4448 4449 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion 4450 of the e-mail address in the DN (i.e., it will go into a certificate 4451 extension only). The new configuration file option 'email_in_dn = no' 4452 has the same effect. 4453 [Massimiliano Pala madwolf@openca.org] 4454 4455 *) Change all functions with names starting with des_ to be starting 4456 with DES_ instead. Add wrappers that are compatible with libdes, 4457 but are named _ossl_old_des_*. Finally, add macros that map the 4458 des_* symbols to the corresponding _ossl_old_des_* if libdes 4459 compatibility is desired. If OpenSSL 0.9.6c compatibility is 4460 desired, the des_* symbols will be mapped to DES_*, with one 4461 exception. 4462 4463 Since we provide two compatibility mappings, the user needs to 4464 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes 4465 compatibility is desired. The default (i.e., when that macro 4466 isn't defined) is OpenSSL 0.9.6c compatibility. 4467 4468 There are also macros that enable and disable the support of old 4469 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT 4470 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those 4471 are defined, the default will apply: to support the old des routines. 4472 4473 In either case, one must include openssl/des.h to get the correct 4474 definitions. Do not try to just include openssl/des_old.h, that 4475 won't work. 4476 4477 NOTE: This is a major break of an old API into a new one. Software 4478 authors are encouraged to switch to the DES_ style functions. Some 4479 time in the future, des_old.h and the libdes compatibility functions 4480 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the 4481 default), and then completely removed. 4482 [Richard Levitte] 4483 4484 *) Test for certificates which contain unsupported critical extensions. 4485 If such a certificate is found during a verify operation it is 4486 rejected by default: this behaviour can be overridden by either 4487 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or 4488 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function 4489 X509_supported_extension() has also been added which returns 1 if a 4490 particular extension is supported. 4491 [Steve Henson] 4492 4493 *) Modify the behaviour of EVP cipher functions in similar way to digests 4494 to retain compatibility with existing code. 4495 [Steve Henson] 4496 4497 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain 4498 compatibility with existing code. In particular the 'ctx' parameter does 4499 not have to be to be initialized before the call to EVP_DigestInit() and 4500 it is tidied up after a call to EVP_DigestFinal(). New function 4501 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function 4502 EVP_MD_CTX_copy() changed to not require the destination to be 4503 initialized valid and new function EVP_MD_CTX_copy_ex() added which 4504 requires the destination to be valid. 4505 4506 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(), 4507 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex(). 4508 [Steve Henson] 4509 4510 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it 4511 so that complete 'Handshake' protocol structures are kept in memory 4512 instead of overwriting 'msg_type' and 'length' with 'body' data. 4513 [Bodo Moeller] 4514 4515 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32. 4516 [Massimo Santin via Richard Levitte] 4517 4518 *) Major restructuring to the underlying ENGINE code. This includes 4519 reduction of linker bloat, separation of pure "ENGINE" manipulation 4520 (initialisation, etc) from functionality dealing with implementations 4521 of specific crypto iterfaces. This change also introduces integrated 4522 support for symmetric ciphers and digest implementations - so ENGINEs 4523 can now accelerate these by providing EVP_CIPHER and EVP_MD 4524 implementations of their own. This is detailed in crypto/engine/README 4525 as it couldn't be adequately described here. However, there are a few 4526 API changes worth noting - some RSA, DSA, DH, and RAND functions that 4527 were changed in the original introduction of ENGINE code have now 4528 reverted back - the hooking from this code to ENGINE is now a good 4529 deal more passive and at run-time, operations deal directly with 4530 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than 4531 dereferencing through an ENGINE pointer any more. Also, the ENGINE 4532 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed - 4533 they were not being used by the framework as there is no concept of a 4534 BIGNUM_METHOD and they could not be generalised to the new 4535 'ENGINE_TABLE' mechanism that underlies the new code. Similarly, 4536 ENGINE_cpy() has been removed as it cannot be consistently defined in 4537 the new code. 4538 [Geoff Thorpe] 4539 4540 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds. 4541 [Steve Henson] 4542 4543 *) Change mkdef.pl to sort symbols that get the same entry number, 4544 and make sure the automatically generated functions ERR_load_* 4545 become part of libeay.num as well. 4546 [Richard Levitte] 4547 4548 *) New function SSL_renegotiate_pending(). This returns true once 4549 renegotiation has been requested (either SSL_renegotiate() call 4550 or HelloRequest/ClientHello receveived from the peer) and becomes 4551 false once a handshake has been completed. 4552 (For servers, SSL_renegotiate() followed by SSL_do_handshake() 4553 sends a HelloRequest, but does not ensure that a handshake takes 4554 place. SSL_renegotiate_pending() is useful for checking if the 4555 client has followed the request.) 4556 [Bodo Moeller] 4557 4558 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION. 4559 By default, clients may request session resumption even during 4560 renegotiation (if session ID contexts permit); with this option, 4561 session resumption is possible only in the first handshake. 4562 4563 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes 4564 more bits available for options that should not be part of 4565 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION). 4566 [Bodo Moeller] 4567 4568 *) Add some demos for certificate and certificate request creation. 4569 [Steve Henson] 4570 4571 *) Make maximum certificate chain size accepted from the peer application 4572 settable (SSL*_get/set_max_cert_list()), as proposed by 4573 "Douglas E. Engert" <deengert@anl.gov>. 4574 [Lutz Jaenicke] 4575 4576 *) Add support for shared libraries for Unixware-7 4577 (Boyd Lynn Gerber <gerberb@zenez.com>). 4578 [Lutz Jaenicke] 4579 4580 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to 4581 be done prior to destruction. Use this to unload error strings from 4582 ENGINEs that load their own error strings. NB: This adds two new API 4583 functions to "get" and "set" this destroy handler in an ENGINE. 4584 [Geoff Thorpe] 4585 4586 *) Alter all existing ENGINE implementations (except "openssl" and 4587 "openbsd") to dynamically instantiate their own error strings. This 4588 makes them more flexible to be built both as statically-linked ENGINEs 4589 and self-contained shared-libraries loadable via the "dynamic" ENGINE. 4590 Also, add stub code to each that makes building them as self-contained 4591 shared-libraries easier (see README.ENGINE). 4592 [Geoff Thorpe] 4593 4594 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE 4595 implementations into applications that are completely implemented in 4596 self-contained shared-libraries. The "dynamic" ENGINE exposes control 4597 commands that can be used to configure what shared-library to load and 4598 to control aspects of the way it is handled. Also, made an update to 4599 the README.ENGINE file that brings its information up-to-date and 4600 provides some information and instructions on the "dynamic" ENGINE 4601 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc). 4602 [Geoff Thorpe] 4603 4604 *) Make it possible to unload ranges of ERR strings with a new 4605 "ERR_unload_strings" function. 4606 [Geoff Thorpe] 4607 4608 *) Add a copy() function to EVP_MD. 4609 [Ben Laurie] 4610 4611 *) Make EVP_MD routines take a context pointer instead of just the 4612 md_data void pointer. 4613 [Ben Laurie] 4614 4615 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates 4616 that the digest can only process a single chunk of data 4617 (typically because it is provided by a piece of 4618 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application 4619 is only going to provide a single chunk of data, and hence the 4620 framework needn't accumulate the data for oneshot drivers. 4621 [Ben Laurie] 4622 4623 *) As with "ERR", make it possible to replace the underlying "ex_data" 4624 functions. This change also alters the storage and management of global 4625 ex_data state - it's now all inside ex_data.c and all "class" code (eg. 4626 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class 4627 index counters. The API functions that use this state have been changed 4628 to take a "class_index" rather than pointers to the class's local STACK 4629 and counter, and there is now an API function to dynamically create new 4630 classes. This centralisation allows us to (a) plug a lot of the 4631 thread-safety problems that existed, and (b) makes it possible to clean 4632 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b) 4633 such data would previously have always leaked in application code and 4634 workarounds were in place to make the memory debugging turn a blind eye 4635 to it. Application code that doesn't use this new function will still 4636 leak as before, but their memory debugging output will announce it now 4637 rather than letting it slide. 4638 4639 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change 4640 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now 4641 has a return value to indicate success or failure. 4642 [Geoff Thorpe] 4643 4644 *) Make it possible to replace the underlying "ERR" functions such that the 4645 global state (2 LHASH tables and 2 locks) is only used by the "default" 4646 implementation. This change also adds two functions to "get" and "set" 4647 the implementation prior to it being automatically set the first time 4648 any other ERR function takes place. Ie. an application can call "get", 4649 pass the return value to a module it has just loaded, and that module 4650 can call its own "set" function using that value. This means the 4651 module's "ERR" operations will use (and modify) the error state in the 4652 application and not in its own statically linked copy of OpenSSL code. 4653 [Geoff Thorpe] 4654 4655 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment 4656 reference counts. This performs normal REF_PRINT/REF_CHECK macros on 4657 the operation, and provides a more encapsulated way for external code 4658 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code 4659 to use these functions rather than manually incrementing the counts. 4660 4661 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()". 4662 [Geoff Thorpe] 4663 4664 *) Add EVP test program. 4665 [Ben Laurie] 4666 4667 *) Add symmetric cipher support to ENGINE. Expect the API to change! 4668 [Ben Laurie] 4669 4670 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name() 4671 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(), 4672 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate(). 4673 These allow a CRL to be built without having to access X509_CRL fields 4674 directly. Modify 'ca' application to use new functions. 4675 [Steve Henson] 4676 4677 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended 4678 bug workarounds. Rollback attack detection is a security feature. 4679 The problem will only arise on OpenSSL servers when TLSv1 is not 4680 available (sslv3_server_method() or SSL_OP_NO_TLSv1). 4681 Software authors not wanting to support TLSv1 will have special reasons 4682 for their choice and can explicitly enable this option. 4683 [Bodo Moeller, Lutz Jaenicke] 4684 4685 *) Rationalise EVP so it can be extended: don't include a union of 4686 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX 4687 (similar to those existing for EVP_CIPHER_CTX). 4688 Usage example: 4689 4690 EVP_MD_CTX md; 4691 4692 EVP_MD_CTX_init(&md); /* new function call */ 4693 EVP_DigestInit(&md, EVP_sha1()); 4694 EVP_DigestUpdate(&md, in, len); 4695 EVP_DigestFinal(&md, out, NULL); 4696 EVP_MD_CTX_cleanup(&md); /* new function call */ 4697 4698 [Ben Laurie] 4699 4700 *) Make DES key schedule conform to the usual scheme, as well as 4701 correcting its structure. This means that calls to DES functions 4702 now have to pass a pointer to a des_key_schedule instead of a 4703 plain des_key_schedule (which was actually always a pointer 4704 anyway): E.g., 4705 4706 des_key_schedule ks; 4707 4708 des_set_key_checked(..., &ks); 4709 des_ncbc_encrypt(..., &ks, ...); 4710 4711 (Note that a later change renames 'des_...' into 'DES_...'.) 4712 [Ben Laurie] 4713 4714 *) Initial reduction of linker bloat: the use of some functions, such as 4715 PEM causes large amounts of unused functions to be linked in due to 4716 poor organisation. For example pem_all.c contains every PEM function 4717 which has a knock on effect of linking in large amounts of (unused) 4718 ASN1 code. Grouping together similar functions and splitting unrelated 4719 functions prevents this. 4720 [Steve Henson] 4721 4722 *) Cleanup of EVP macros. 4723 [Ben Laurie] 4724 4725 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the 4726 correct _ecb suffix. 4727 [Ben Laurie] 4728 4729 *) Add initial OCSP responder support to ocsp application. The 4730 revocation information is handled using the text based index 4731 use by the ca application. The responder can either handle 4732 requests generated internally, supplied in files (for example 4733 via a CGI script) or using an internal minimal server. 4734 [Steve Henson] 4735 4736 *) Add configuration choices to get zlib compression for TLS. 4737 [Richard Levitte] 4738 4739 *) Changes to Kerberos SSL for RFC 2712 compliance: 4740 1. Implemented real KerberosWrapper, instead of just using 4741 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>] 4742 2. Implemented optional authenticator field of KerberosWrapper. 4743 4744 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req, 4745 and authenticator structs; see crypto/krb5/. 4746 4747 Generalized Kerberos calls to support multiple Kerberos libraries. 4748 [Vern Staats <staatsvr@asc.hpc.mil>, 4749 Jeffrey Altman <jaltman@columbia.edu> 4750 via Richard Levitte] 4751 4752 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it 4753 already does with RSA. testdsa.h now has 'priv_key/pub_key' 4754 values for each of the key sizes rather than having just 4755 parameters (and 'speed' generating keys each time). 4756 [Geoff Thorpe] 4757 4758 *) Speed up EVP routines. 4759 Before: 4760encrypt 4761type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes 4762des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k 4763des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k 4764des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k 4765decrypt 4766des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k 4767des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k 4768des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k 4769 After: 4770encrypt 4771des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k 4772decrypt 4773des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k 4774 [Ben Laurie] 4775 4776 *) Added the OS2-EMX target. 4777 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte] 4778 4779 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions 4780 to support NCONF routines in extension code. New function CONF_set_nconf() 4781 to allow functions which take an NCONF to also handle the old LHASH 4782 structure: this means that the old CONF compatible routines can be 4783 retained (in particular wrt extensions) without having to duplicate the 4784 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack. 4785 [Steve Henson] 4786 4787 *) Enhance the general user interface with mechanisms for inner control 4788 and with possibilities to have yes/no kind of prompts. 4789 [Richard Levitte] 4790 4791 *) Change all calls to low level digest routines in the library and 4792 applications to use EVP. Add missing calls to HMAC_cleanup() and 4793 don't assume HMAC_CTX can be copied using memcpy(). 4794 [Verdon Walker <VWalker@novell.com>, Steve Henson] 4795 4796 *) Add the possibility to control engines through control names but with 4797 arbitrary arguments instead of just a string. 4798 Change the key loaders to take a UI_METHOD instead of a callback 4799 function pointer. NOTE: this breaks binary compatibility with earlier 4800 versions of OpenSSL [engine]. 4801 Adapt the nCipher code for these new conditions and add a card insertion 4802 callback. 4803 [Richard Levitte] 4804 4805 *) Enhance the general user interface with mechanisms to better support 4806 dialog box interfaces, application-defined prompts, the possibility 4807 to use defaults (for example default passwords from somewhere else) 4808 and interrupts/cancellations. 4809 [Richard Levitte] 4810 4811 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name 4812 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility. 4813 [Steve Henson] 4814 4815 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also 4816 tidy up some unnecessarily weird code in 'sk_new()'). 4817 [Geoff, reported by Diego Tartara <dtartara@novamens.com>] 4818 4819 *) Change the key loading routines for ENGINEs to use the same kind 4820 callback (pem_password_cb) as all other routines that need this 4821 kind of callback. 4822 [Richard Levitte] 4823 4824 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with 4825 256 bit (=32 byte) keys. Of course seeding with more entropy bytes 4826 than this minimum value is recommended. 4827 [Lutz Jaenicke] 4828 4829 *) New random seeder for OpenVMS, using the system process statistics 4830 that are easily reachable. 4831 [Richard Levitte] 4832 4833 *) Windows apparently can't transparently handle global 4834 variables defined in DLLs. Initialisations such as: 4835 4836 const ASN1_ITEM *it = &ASN1_INTEGER_it; 4837 4838 wont compile. This is used by the any applications that need to 4839 declare their own ASN1 modules. This was fixed by adding the option 4840 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly 4841 needed for static libraries under Win32. 4842 [Steve Henson] 4843 4844 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle 4845 setting of purpose and trust fields. New X509_STORE trust and 4846 purpose functions and tidy up setting in other SSL functions. 4847 [Steve Henson] 4848 4849 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE 4850 structure. These are inherited by X509_STORE_CTX when it is 4851 initialised. This allows various defaults to be set in the 4852 X509_STORE structure (such as flags for CRL checking and custom 4853 purpose or trust settings) for functions which only use X509_STORE_CTX 4854 internally such as S/MIME. 4855 4856 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and 4857 trust settings if they are not set in X509_STORE. This allows X509_STORE 4858 purposes and trust (in S/MIME for example) to override any set by default. 4859 4860 Add command line options for CRL checking to smime, s_client and s_server 4861 applications. 4862 [Steve Henson] 4863 4864 *) Initial CRL based revocation checking. If the CRL checking flag(s) 4865 are set then the CRL is looked up in the X509_STORE structure and 4866 its validity and signature checked, then if the certificate is found 4867 in the CRL the verify fails with a revoked error. 4868 4869 Various new CRL related callbacks added to X509_STORE_CTX structure. 4870 4871 Command line options added to 'verify' application to support this. 4872 4873 This needs some additional work, such as being able to handle multiple 4874 CRLs with different times, extension based lookup (rather than just 4875 by subject name) and ultimately more complete V2 CRL extension 4876 handling. 4877 [Steve Henson] 4878 4879 *) Add a general user interface API (crypto/ui/). This is designed 4880 to replace things like des_read_password and friends (backward 4881 compatibility functions using this new API are provided). 4882 The purpose is to remove prompting functions from the DES code 4883 section as well as provide for prompting through dialog boxes in 4884 a window system and the like. 4885 [Richard Levitte] 4886 4887 *) Add "ex_data" support to ENGINE so implementations can add state at a 4888 per-structure level rather than having to store it globally. 4889 [Geoff] 4890 4891 *) Make it possible for ENGINE structures to be copied when retrieved by 4892 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY. 4893 This causes the "original" ENGINE structure to act like a template, 4894 analogous to the RSA vs. RSA_METHOD type of separation. Because of this 4895 operational state can be localised to each ENGINE structure, despite the 4896 fact they all share the same "methods". New ENGINE structures returned in 4897 this case have no functional references and the return value is the single 4898 structural reference. This matches the single structural reference returned 4899 by ENGINE_by_id() normally, when it is incremented on the pre-existing 4900 ENGINE structure. 4901 [Geoff] 4902 4903 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this 4904 needs to match any other type at all we need to manually clear the 4905 tag cache. 4906 [Steve Henson] 4907 4908 *) Changes to the "openssl engine" utility to include; 4909 - verbosity levels ('-v', '-vv', and '-vvv') that provide information 4910 about an ENGINE's available control commands. 4911 - executing control commands from command line arguments using the 4912 '-pre' and '-post' switches. '-post' is only used if '-t' is 4913 specified and the ENGINE is successfully initialised. The syntax for 4914 the individual commands are colon-separated, for example; 4915 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so 4916 [Geoff] 4917 4918 *) New dynamic control command support for ENGINEs. ENGINEs can now 4919 declare their own commands (numbers), names (strings), descriptions, 4920 and input types for run-time discovery by calling applications. A 4921 subset of these commands are implicitly classed as "executable" 4922 depending on their input type, and only these can be invoked through 4923 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this 4924 can be based on user input, config files, etc). The distinction is 4925 that "executable" commands cannot return anything other than a boolean 4926 result and can only support numeric or string input, whereas some 4927 discoverable commands may only be for direct use through 4928 ENGINE_ctrl(), eg. supporting the exchange of binary data, function 4929 pointers, or other custom uses. The "executable" commands are to 4930 support parameterisations of ENGINE behaviour that can be 4931 unambiguously defined by ENGINEs and used consistently across any 4932 OpenSSL-based application. Commands have been added to all the 4933 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow 4934 control over shared-library paths without source code alterations. 4935 [Geoff] 4936 4937 *) Changed all ENGINE implementations to dynamically allocate their 4938 ENGINEs rather than declaring them statically. Apart from this being 4939 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction, 4940 this also allows the implementations to compile without using the 4941 internal engine_int.h header. 4942 [Geoff] 4943 4944 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a 4945 'const' value. Any code that should be able to modify a RAND_METHOD 4946 should already have non-const pointers to it (ie. they should only 4947 modify their own ones). 4948 [Geoff] 4949 4950 *) Made a variety of little tweaks to the ENGINE code. 4951 - "atalla" and "ubsec" string definitions were moved from header files 4952 to C code. "nuron" string definitions were placed in variables 4953 rather than hard-coded - allowing parameterisation of these values 4954 later on via ctrl() commands. 4955 - Removed unused "#if 0"'d code. 4956 - Fixed engine list iteration code so it uses ENGINE_free() to release 4957 structural references. 4958 - Constified the RAND_METHOD element of ENGINE structures. 4959 - Constified various get/set functions as appropriate and added 4960 missing functions (including a catch-all ENGINE_cpy that duplicates 4961 all ENGINE values onto a new ENGINE except reference counts/state). 4962 - Removed NULL parameter checks in get/set functions. Setting a method 4963 or function to NULL is a way of cancelling out a previously set 4964 value. Passing a NULL ENGINE parameter is just plain stupid anyway 4965 and doesn't justify the extra error symbols and code. 4966 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for 4967 flags from engine_int.h to engine.h. 4968 - Changed prototypes for ENGINE handler functions (init(), finish(), 4969 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter. 4970 [Geoff] 4971 4972 *) Implement binary inversion algorithm for BN_mod_inverse in addition 4973 to the algorithm using long division. The binary algorithm can be 4974 used only if the modulus is odd. On 32-bit systems, it is faster 4975 only for relatively small moduli (roughly 20-30% for 128-bit moduli, 4976 roughly 5-15% for 256-bit moduli), so we use it only for moduli 4977 up to 450 bits. In 64-bit environments, the binary algorithm 4978 appears to be advantageous for much longer moduli; here we use it 4979 for moduli up to 2048 bits. 4980 [Bodo Moeller] 4981 4982 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code 4983 could not support the combine flag in choice fields. 4984 [Steve Henson] 4985 4986 *) Add a 'copy_extensions' option to the 'ca' utility. This copies 4987 extensions from a certificate request to the certificate. 4988 [Steve Henson] 4989 4990 *) Allow multiple 'certopt' and 'nameopt' options to be separated 4991 by commas. Add 'namopt' and 'certopt' options to the 'ca' config 4992 file: this allows the display of the certificate about to be 4993 signed to be customised, to allow certain fields to be included 4994 or excluded and extension details. The old system didn't display 4995 multicharacter strings properly, omitted fields not in the policy 4996 and couldn't display additional details such as extensions. 4997 [Steve Henson] 4998 4999 *) Function EC_POINTs_mul for multiple scalar multiplication 5000 of an arbitrary number of elliptic curve points 5001 \sum scalars[i]*points[i], 5002 optionally including the generator defined for the EC_GROUP: 5003 scalar*generator + \sum scalars[i]*points[i]. 5004 5005 EC_POINT_mul is a simple wrapper function for the typical case 5006 that the point list has just one item (besides the optional 5007 generator). 5008 [Bodo Moeller] 5009 5010 *) First EC_METHODs for curves over GF(p): 5011 5012 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr 5013 operations and provides various method functions that can also 5014 operate with faster implementations of modular arithmetic. 5015 5016 EC_GFp_mont_method() reuses most functions that are part of 5017 EC_GFp_simple_method, but uses Montgomery arithmetic. 5018 5019 [Bodo Moeller; point addition and point doubling 5020 implementation directly derived from source code provided by 5021 Lenka Fibikova <fibikova@exp-math.uni-essen.de>] 5022 5023 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h, 5024 crypto/ec/ec_lib.c): 5025 5026 Curves are EC_GROUP objects (with an optional group generator) 5027 based on EC_METHODs that are built into the library. 5028 5029 Points are EC_POINT objects based on EC_GROUP objects. 5030 5031 Most of the framework would be able to handle curves over arbitrary 5032 finite fields, but as there are no obvious types for fields other 5033 than GF(p), some functions are limited to that for now. 5034 [Bodo Moeller] 5035 5036 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires 5037 that the file contains a complete HTTP response. 5038 [Richard Levitte] 5039 5040 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl 5041 change the def and num file printf format specifier from "%-40sXXX" 5042 to "%-39s XXX". The latter will always guarantee a space after the 5043 field while the former will cause them to run together if the field 5044 is 40 of more characters long. 5045 [Steve Henson] 5046 5047 *) Constify the cipher and digest 'method' functions and structures 5048 and modify related functions to take constant EVP_MD and EVP_CIPHER 5049 pointers. 5050 [Steve Henson] 5051 5052 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them 5053 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32. 5054 [Bodo Moeller] 5055 5056 *) Modify EVP_Digest*() routines so they now return values. Although the 5057 internal software routines can never fail additional hardware versions 5058 might. 5059 [Steve Henson] 5060 5061 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts: 5062 5063 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7 5064 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32. 5065 5066 ASN1 error codes 5067 ERR_R_NESTED_ASN1_ERROR 5068 ... 5069 ERR_R_MISSING_ASN1_EOS 5070 were 4 .. 9, conflicting with 5071 ERR_LIB_RSA (= ERR_R_RSA_LIB) 5072 ... 5073 ERR_LIB_PEM (= ERR_R_PEM_LIB). 5074 They are now 58 .. 63 (i.e., just below ERR_R_FATAL). 5075 5076 Add new error code 'ERR_R_INTERNAL_ERROR'. 5077 [Bodo Moeller] 5078 5079 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock 5080 suffices. 5081 [Bodo Moeller] 5082 5083 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This 5084 sets the subject name for a new request or supersedes the 5085 subject name in a given request. Formats that can be parsed are 5086 'CN=Some Name, OU=myOU, C=IT' 5087 and 5088 'CN=Some Name/OU=myOU/C=IT'. 5089 5090 Add options '-batch' and '-verbose' to 'openssl req'. 5091 [Massimiliano Pala <madwolf@hackmasters.net>] 5092 5093 *) Introduce the possibility to access global variables through 5094 functions on platform were that's the best way to handle exporting 5095 global variables in shared libraries. To enable this functionality, 5096 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro 5097 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter 5098 is normally done by Configure or something similar). 5099 5100 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL 5101 in the source file (foo.c) like this: 5102 5103 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1; 5104 OPENSSL_IMPLEMENT_GLOBAL(double,bar); 5105 5106 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL 5107 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this: 5108 5109 OPENSSL_DECLARE_GLOBAL(int,foo); 5110 #define foo OPENSSL_GLOBAL_REF(foo) 5111 OPENSSL_DECLARE_GLOBAL(double,bar); 5112 #define bar OPENSSL_GLOBAL_REF(bar) 5113 5114 The #defines are very important, and therefore so is including the 5115 header file everywhere where the defined globals are used. 5116 5117 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition 5118 of ASN.1 items, but that structure is a bit different. 5119 5120 The largest change is in util/mkdef.pl which has been enhanced with 5121 better and easier to understand logic to choose which symbols should 5122 go into the Windows .def files as well as a number of fixes and code 5123 cleanup (among others, algorithm keywords are now sorted 5124 lexicographically to avoid constant rewrites). 5125 [Richard Levitte] 5126 5127 *) In BN_div() keep a copy of the sign of 'num' before writing the 5128 result to 'rm' because if rm==num the value will be overwritten 5129 and produce the wrong result if 'num' is negative: this caused 5130 problems with BN_mod() and BN_nnmod(). 5131 [Steve Henson] 5132 5133 *) Function OCSP_request_verify(). This checks the signature on an 5134 OCSP request and verifies the signer certificate. The signer 5135 certificate is just checked for a generic purpose and OCSP request 5136 trust settings. 5137 [Steve Henson] 5138 5139 *) Add OCSP_check_validity() function to check the validity of OCSP 5140 responses. OCSP responses are prepared in real time and may only 5141 be a few seconds old. Simply checking that the current time lies 5142 between thisUpdate and nextUpdate max reject otherwise valid responses 5143 caused by either OCSP responder or client clock inaccuracy. Instead 5144 we allow thisUpdate and nextUpdate to fall within a certain period of 5145 the current time. The age of the response can also optionally be 5146 checked. Two new options -validity_period and -status_age added to 5147 ocsp utility. 5148 [Steve Henson] 5149 5150 *) If signature or public key algorithm is unrecognized print out its 5151 OID rather that just UNKNOWN. 5152 [Steve Henson] 5153 5154 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and 5155 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate 5156 ID to be generated from the issuer certificate alone which can then be 5157 passed to OCSP_id_issuer_cmp(). 5158 [Steve Henson] 5159 5160 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new 5161 ASN1 modules to export functions returning ASN1_ITEM pointers 5162 instead of the ASN1_ITEM structures themselves. This adds several 5163 new macros which allow the underlying ASN1 function/structure to 5164 be accessed transparently. As a result code should not use ASN1_ITEM 5165 references directly (such as &X509_it) but instead use the relevant 5166 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow 5167 use of the new ASN1 code on platforms where exporting structures 5168 is problematical (for example in shared libraries) but exporting 5169 functions returning pointers to structures is not. 5170 [Steve Henson] 5171 5172 *) Add support for overriding the generation of SSL/TLS session IDs. 5173 These callbacks can be registered either in an SSL_CTX or per SSL. 5174 The purpose of this is to allow applications to control, if they wish, 5175 the arbitrary values chosen for use as session IDs, particularly as it 5176 can be useful for session caching in multiple-server environments. A 5177 command-line switch for testing this (and any client code that wishes 5178 to use such a feature) has been added to "s_server". 5179 [Geoff Thorpe, Lutz Jaenicke] 5180 5181 *) Modify mkdef.pl to recognise and parse preprocessor conditionals 5182 of the form '#if defined(...) || defined(...) || ...' and 5183 '#if !defined(...) && !defined(...) && ...'. This also avoids 5184 the growing number of special cases it was previously handling. 5185 [Richard Levitte] 5186 5187 *) Make all configuration macros available for application by making 5188 sure they are available in opensslconf.h, by giving them names starting 5189 with "OPENSSL_" to avoid conflicts with other packages and by making 5190 sure e_os2.h will cover all platform-specific cases together with 5191 opensslconf.h. 5192 Additionally, it is now possible to define configuration/platform- 5193 specific names (called "system identities"). In the C code, these 5194 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another 5195 macro with the name beginning with "OPENSSL_SYS_", which is determined 5196 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on 5197 what is available. 5198 [Richard Levitte] 5199 5200 *) New option -set_serial to 'req' and 'x509' this allows the serial 5201 number to use to be specified on the command line. Previously self 5202 signed certificates were hard coded with serial number 0 and the 5203 CA options of 'x509' had to use a serial number in a file which was 5204 auto incremented. 5205 [Steve Henson] 5206 5207 *) New options to 'ca' utility to support V2 CRL entry extensions. 5208 Currently CRL reason, invalidity date and hold instruction are 5209 supported. Add new CRL extensions to V3 code and some new objects. 5210 [Steve Henson] 5211 5212 *) New function EVP_CIPHER_CTX_set_padding() this is used to 5213 disable standard block padding (aka PKCS#5 padding) in the EVP 5214 API, which was previously mandatory. This means that the data is 5215 not padded in any way and so the total length much be a multiple 5216 of the block size, otherwise an error occurs. 5217 [Steve Henson] 5218 5219 *) Initial (incomplete) OCSP SSL support. 5220 [Steve Henson] 5221 5222 *) New function OCSP_parse_url(). This splits up a URL into its host, 5223 port and path components: primarily to parse OCSP URLs. New -url 5224 option to ocsp utility. 5225 [Steve Henson] 5226 5227 *) New nonce behavior. The return value of OCSP_check_nonce() now 5228 reflects the various checks performed. Applications can decide 5229 whether to tolerate certain situations such as an absent nonce 5230 in a response when one was present in a request: the ocsp application 5231 just prints out a warning. New function OCSP_add1_basic_nonce() 5232 this is to allow responders to include a nonce in a response even if 5233 the request is nonce-less. 5234 [Steve Henson] 5235 5236 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are 5237 skipped when using openssl x509 multiple times on a single input file, 5238 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs". 5239 [Bodo Moeller] 5240 5241 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string() 5242 set string type: to handle setting ASN1_TIME structures. Fix ca 5243 utility to correctly initialize revocation date of CRLs. 5244 [Steve Henson] 5245 5246 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override 5247 the clients preferred ciphersuites and rather use its own preferences. 5248 Should help to work around M$ SGC (Server Gated Cryptography) bug in 5249 Internet Explorer by ensuring unchanged hash method during stepup. 5250 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.) 5251 [Lutz Jaenicke] 5252 5253 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael 5254 to aes and add a new 'exist' option to print out symbols that don't 5255 appear to exist. 5256 [Steve Henson] 5257 5258 *) Additional options to ocsp utility to allow flags to be set and 5259 additional certificates supplied. 5260 [Steve Henson] 5261 5262 *) Add the option -VAfile to 'openssl ocsp', so the user can give the 5263 OCSP client a number of certificate to only verify the response 5264 signature against. 5265 [Richard Levitte] 5266 5267 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to 5268 handle the new API. Currently only ECB, CBC modes supported. Add new 5269 AES OIDs. 5270 5271 Add TLS AES ciphersuites as described in RFC3268, "Advanced 5272 Encryption Standard (AES) Ciphersuites for Transport Layer 5273 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were 5274 not enabled by default and were not part of the "ALL" ciphersuite 5275 alias because they were not yet official; they could be 5276 explicitly requested by specifying the "AESdraft" ciphersuite 5277 group alias. In the final release of OpenSSL 0.9.7, the group 5278 alias is called "AES" and is part of "ALL".) 5279 [Ben Laurie, Steve Henson, Bodo Moeller] 5280 5281 *) New function OCSP_copy_nonce() to copy nonce value (if present) from 5282 request to response. 5283 [Steve Henson] 5284 5285 *) Functions for OCSP responders. OCSP_request_onereq_count(), 5286 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info() 5287 extract information from a certificate request. OCSP_response_create() 5288 creates a response and optionally adds a basic response structure. 5289 OCSP_basic_add1_status() adds a complete single response to a basic 5290 response and returns the OCSP_SINGLERESP structure just added (to allow 5291 extensions to be included for example). OCSP_basic_add1_cert() adds a 5292 certificate to a basic response and OCSP_basic_sign() signs a basic 5293 response with various flags. New helper functions ASN1_TIME_check() 5294 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime() 5295 (converts ASN1_TIME to GeneralizedTime). 5296 [Steve Henson] 5297 5298 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}() 5299 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key 5300 structure from a certificate. X509_pubkey_digest() digests the public_key 5301 contents: this is used in various key identifiers. 5302 [Steve Henson] 5303 5304 *) Make sk_sort() tolerate a NULL argument. 5305 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>] 5306 5307 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates 5308 passed by the function are trusted implicitly. If any of them signed the 5309 response then it is assumed to be valid and is not verified. 5310 [Steve Henson] 5311 5312 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT 5313 to data. This was previously part of the PKCS7 ASN1 code. This 5314 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures. 5315 [Steve Henson, reported by Kenneth R. Robinette 5316 <support@securenetterm.com>] 5317 5318 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1 5319 routines: without these tracing memory leaks is very painful. 5320 Fix leaks in PKCS12 and PKCS7 routines. 5321 [Steve Henson] 5322 5323 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new(). 5324 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which 5325 effectively meant GeneralizedTime would never be used. Now it 5326 is initialised to -1 but X509_time_adj() now has to check the value 5327 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or 5328 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime. 5329 [Steve Henson, reported by Kenneth R. Robinette 5330 <support@securenetterm.com>] 5331 5332 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously 5333 result in a zero length in the ASN1_INTEGER structure which was 5334 not consistent with the structure when d2i_ASN1_INTEGER() was used 5335 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER() 5336 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER() 5337 where it did not print out a minus for negative ASN1_INTEGER. 5338 [Steve Henson] 5339 5340 *) Add summary printout to ocsp utility. The various functions which 5341 convert status values to strings have been renamed to: 5342 OCSP_response_status_str(), OCSP_cert_status_str() and 5343 OCSP_crl_reason_str() and are no longer static. New options 5344 to verify nonce values and to disable verification. OCSP response 5345 printout format cleaned up. 5346 [Steve Henson] 5347 5348 *) Add additional OCSP certificate checks. These are those specified 5349 in RFC2560. This consists of two separate checks: the CA of the 5350 certificate being checked must either be the OCSP signer certificate 5351 or the issuer of the OCSP signer certificate. In the latter case the 5352 OCSP signer certificate must contain the OCSP signing extended key 5353 usage. This check is performed by attempting to match the OCSP 5354 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash 5355 in the OCSP_CERTID structures of the response. 5356 [Steve Henson] 5357 5358 *) Initial OCSP certificate verification added to OCSP_basic_verify() 5359 and related routines. This uses the standard OpenSSL certificate 5360 verify routines to perform initial checks (just CA validity) and 5361 to obtain the certificate chain. Then additional checks will be 5362 performed on the chain. Currently the root CA is checked to see 5363 if it is explicitly trusted for OCSP signing. This is used to set 5364 a root CA as a global signing root: that is any certificate that 5365 chains to that CA is an acceptable OCSP signing certificate. 5366 [Steve Henson] 5367 5368 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3 5369 extensions from a separate configuration file. 5370 As when reading extensions from the main configuration file, 5371 the '-extensions ...' option may be used for specifying the 5372 section to use. 5373 [Massimiliano Pala <madwolf@comune.modena.it>] 5374 5375 *) New OCSP utility. Allows OCSP requests to be generated or 5376 read. The request can be sent to a responder and the output 5377 parsed, outputed or printed in text form. Not complete yet: 5378 still needs to check the OCSP response validity. 5379 [Steve Henson] 5380 5381 *) New subcommands for 'openssl ca': 5382 'openssl ca -status <serial>' prints the status of the cert with 5383 the given serial number (according to the index file). 5384 'openssl ca -updatedb' updates the expiry status of certificates 5385 in the index file. 5386 [Massimiliano Pala <madwolf@comune.modena.it>] 5387 5388 *) New '-newreq-nodes' command option to CA.pl. This is like 5389 '-newreq', but calls 'openssl req' with the '-nodes' option 5390 so that the resulting key is not encrypted. 5391 [Damien Miller <djm@mindrot.org>] 5392 5393 *) New configuration for the GNU Hurd. 5394 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte] 5395 5396 *) Initial code to implement OCSP basic response verify. This 5397 is currently incomplete. Currently just finds the signer's 5398 certificate and verifies the signature on the response. 5399 [Steve Henson] 5400 5401 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in 5402 value of OPENSSLDIR. This is available via the new '-d' option 5403 to 'openssl version', and is also included in 'openssl version -a'. 5404 [Bodo Moeller] 5405 5406 *) Allowing defining memory allocation callbacks that will be given 5407 file name and line number information in additional arguments 5408 (a const char* and an int). The basic functionality remains, as 5409 well as the original possibility to just replace malloc(), 5410 realloc() and free() by functions that do not know about these 5411 additional arguments. To register and find out the current 5412 settings for extended allocation functions, the following 5413 functions are provided: 5414 5415 CRYPTO_set_mem_ex_functions 5416 CRYPTO_set_locked_mem_ex_functions 5417 CRYPTO_get_mem_ex_functions 5418 CRYPTO_get_locked_mem_ex_functions 5419 5420 These work the same way as CRYPTO_set_mem_functions and friends. 5421 CRYPTO_get_[locked_]mem_functions now writes 0 where such an 5422 extended allocation function is enabled. 5423 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where 5424 a conventional allocation function is enabled. 5425 [Richard Levitte, Bodo Moeller] 5426 5427 *) Finish off removing the remaining LHASH function pointer casts. 5428 There should no longer be any prototype-casting required when using 5429 the LHASH abstraction, and any casts that remain are "bugs". See 5430 the callback types and macros at the head of lhash.h for details 5431 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example). 5432 [Geoff Thorpe] 5433 5434 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant. 5435 If /dev/[u]random devices are not available or do not return enough 5436 entropy, EGD style sockets (served by EGD or PRNGD) will automatically 5437 be queried. 5438 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and 5439 /etc/entropy will be queried once each in this sequence, quering stops 5440 when enough entropy was collected without querying more sockets. 5441 [Lutz Jaenicke] 5442 5443 *) Change the Unix RAND_poll() variant to be able to poll several 5444 random devices, as specified by DEVRANDOM, until a sufficient amount 5445 of data has been collected. We spend at most 10 ms on each file 5446 (select timeout) and read in non-blocking mode. DEVRANDOM now 5447 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom" 5448 (previously it was just the string "/dev/urandom"), so on typical 5449 platforms the 10 ms delay will never occur. 5450 Also separate out the Unix variant to its own file, rand_unix.c. 5451 For VMS, there's a currently-empty rand_vms.c. 5452 [Richard Levitte] 5453 5454 *) Move OCSP client related routines to ocsp_cl.c. These 5455 provide utility functions which an application needing 5456 to issue a request to an OCSP responder and analyse the 5457 response will typically need: as opposed to those which an 5458 OCSP responder itself would need which will be added later. 5459 5460 OCSP_request_sign() signs an OCSP request with an API similar 5461 to PKCS7_sign(). OCSP_response_status() returns status of OCSP 5462 response. OCSP_response_get1_basic() extracts basic response 5463 from response. OCSP_resp_find_status(): finds and extracts status 5464 information from an OCSP_CERTID structure (which will be created 5465 when the request structure is built). These are built from lower 5466 level functions which work on OCSP_SINGLERESP structures but 5467 wont normally be used unless the application wishes to examine 5468 extensions in the OCSP response for example. 5469 5470 Replace nonce routines with a pair of functions. 5471 OCSP_request_add1_nonce() adds a nonce value and optionally 5472 generates a random value. OCSP_check_nonce() checks the 5473 validity of the nonce in an OCSP response. 5474 [Steve Henson] 5475 5476 *) Change function OCSP_request_add() to OCSP_request_add0_id(). 5477 This doesn't copy the supplied OCSP_CERTID and avoids the 5478 need to free up the newly created id. Change return type 5479 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure. 5480 This can then be used to add extensions to the request. 5481 Deleted OCSP_request_new(), since most of its functionality 5482 is now in OCSP_REQUEST_new() (and the case insensitive name 5483 clash) apart from the ability to set the request name which 5484 will be added elsewhere. 5485 [Steve Henson] 5486 5487 *) Update OCSP API. Remove obsolete extensions argument from 5488 various functions. Extensions are now handled using the new 5489 OCSP extension code. New simple OCSP HTTP function which 5490 can be used to send requests and parse the response. 5491 [Steve Henson] 5492 5493 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new 5494 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN 5495 uses the special reorder version of SET OF to sort the attributes 5496 and reorder them to match the encoded order. This resolves a long 5497 standing problem: a verify on a PKCS7 structure just after signing 5498 it used to fail because the attribute order did not match the 5499 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes: 5500 it uses the received order. This is necessary to tolerate some broken 5501 software that does not order SET OF. This is handled by encoding 5502 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class) 5503 to produce the required SET OF. 5504 [Steve Henson] 5505 5506 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and 5507 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header 5508 files to get correct declarations of the ASN.1 item variables. 5509 [Richard Levitte] 5510 5511 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many 5512 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs: 5513 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was 5514 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i(). 5515 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant 5516 ASN1_ITEM and no wrapper functions. 5517 [Steve Henson] 5518 5519 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These 5520 replace the old function pointer based I/O routines. Change most of 5521 the *_d2i_bio() and *_d2i_fp() functions to use these. 5522 [Steve Henson] 5523 5524 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor 5525 lines, recognice more "algorithms" that can be deselected, and make 5526 it complain about algorithm deselection that isn't recognised. 5527 [Richard Levitte] 5528 5529 *) New ASN1 functions to handle dup, sign, verify, digest, pack and 5530 unpack operations in terms of ASN1_ITEM. Modify existing wrappers 5531 to use new functions. Add NO_ASN1_OLD which can be set to remove 5532 some old style ASN1 functions: this can be used to determine if old 5533 code will still work when these eventually go away. 5534 [Steve Henson] 5535 5536 *) New extension functions for OCSP structures, these follow the 5537 same conventions as certificates and CRLs. 5538 [Steve Henson] 5539 5540 *) New function X509V3_add1_i2d(). This automatically encodes and 5541 adds an extension. Its behaviour can be customised with various 5542 flags to append, replace or delete. Various wrappers added for 5543 certifcates and CRLs. 5544 [Steve Henson] 5545 5546 *) Fix to avoid calling the underlying ASN1 print routine when 5547 an extension cannot be parsed. Correct a typo in the 5548 OCSP_SERVICELOC extension. Tidy up print OCSP format. 5549 [Steve Henson] 5550 5551 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate 5552 entries for variables. 5553 [Steve Henson] 5554 5555 *) Add functionality to apps/openssl.c for detecting locking 5556 problems: As the program is single-threaded, all we have 5557 to do is register a locking callback using an array for 5558 storing which locks are currently held by the program. 5559 [Bodo Moeller] 5560 5561 *) Use a lock around the call to CRYPTO_get_ex_new_index() in 5562 SSL_get_ex_data_X509_STORE_idx(), which is used in 5563 ssl_verify_cert_chain() and thus can be called at any time 5564 during TLS/SSL handshakes so that thread-safety is essential. 5565 Unfortunately, the ex_data design is not at all suited 5566 for multi-threaded use, so it probably should be abolished. 5567 [Bodo Moeller] 5568 5569 *) Added Broadcom "ubsec" ENGINE to OpenSSL. 5570 [Broadcom, tweaked and integrated by Geoff Thorpe] 5571 5572 *) Move common extension printing code to new function 5573 X509V3_print_extensions(). Reorganise OCSP print routines and 5574 implement some needed OCSP ASN1 functions. Add OCSP extensions. 5575 [Steve Henson] 5576 5577 *) New function X509_signature_print() to remove duplication in some 5578 print routines. 5579 [Steve Henson] 5580 5581 *) Add a special meaning when SET OF and SEQUENCE OF flags are both 5582 set (this was treated exactly the same as SET OF previously). This 5583 is used to reorder the STACK representing the structure to match the 5584 encoding. This will be used to get round a problem where a PKCS7 5585 structure which was signed could not be verified because the STACK 5586 order did not reflect the encoded order. 5587 [Steve Henson] 5588 5589 *) Reimplement the OCSP ASN1 module using the new code. 5590 [Steve Henson] 5591 5592 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure 5593 for its ASN1 operations. The old style function pointers still exist 5594 for now but they will eventually go away. 5595 [Steve Henson] 5596 5597 *) Merge in replacement ASN1 code from the ASN1 branch. This almost 5598 completely replaces the old ASN1 functionality with a table driven 5599 encoder and decoder which interprets an ASN1_ITEM structure describing 5600 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is 5601 largely maintained. Almost all of the old asn1_mac.h macro based ASN1 5602 has also been converted to the new form. 5603 [Steve Henson] 5604 5605 *) Change BN_mod_exp_recp so that negative moduli are tolerated 5606 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set 5607 so that BN_mod_exp_mont and BN_mod_exp_mont_word work 5608 for negative moduli. 5609 [Bodo Moeller] 5610 5611 *) Fix BN_uadd and BN_usub: Always return non-negative results instead 5612 of not touching the result's sign bit. 5613 [Bodo Moeller] 5614 5615 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be 5616 set. 5617 [Bodo Moeller] 5618 5619 *) Changed the LHASH code to use prototypes for callbacks, and created 5620 macros to declare and implement thin (optionally static) functions 5621 that provide type-safety and avoid function pointer casting for the 5622 type-specific callbacks. 5623 [Geoff Thorpe] 5624 5625 *) Added Kerberos Cipher Suites to be used with TLS, as written in 5626 RFC 2712. 5627 [Veers Staats <staatsvr@asc.hpc.mil>, 5628 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte] 5629 5630 *) Reformat the FAQ so the different questions and answers can be divided 5631 in sections depending on the subject. 5632 [Richard Levitte] 5633 5634 *) Have the zlib compression code load ZLIB.DLL dynamically under 5635 Windows. 5636 [Richard Levitte] 5637 5638 *) New function BN_mod_sqrt for computing square roots modulo a prime 5639 (using the probabilistic Tonelli-Shanks algorithm unless 5640 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can 5641 be handled deterministically). 5642 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller] 5643 5644 *) Make BN_mod_inverse faster by explicitly handling small quotients 5645 in the Euclid loop. (Speed gain about 20% for small moduli [256 or 5646 512 bits], about 30% for larger ones [1024 or 2048 bits].) 5647 [Bodo Moeller] 5648 5649 *) New function BN_kronecker. 5650 [Bodo Moeller] 5651 5652 *) Fix BN_gcd so that it works on negative inputs; the result is 5653 positive unless both parameters are zero. 5654 Previously something reasonably close to an infinite loop was 5655 possible because numbers could be growing instead of shrinking 5656 in the implementation of Euclid's algorithm. 5657 [Bodo Moeller] 5658 5659 *) Fix BN_is_word() and BN_is_one() macros to take into account the 5660 sign of the number in question. 5661 5662 Fix BN_is_word(a,w) to work correctly for w == 0. 5663 5664 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w) 5665 because its test if the absolute value of 'a' equals 'w'. 5666 Note that BN_abs_is_word does *not* handle w == 0 reliably; 5667 it exists mostly for use in the implementations of BN_is_zero(), 5668 BN_is_one(), and BN_is_word(). 5669 [Bodo Moeller] 5670 5671 *) New function BN_swap. 5672 [Bodo Moeller] 5673 5674 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that 5675 the exponentiation functions are more likely to produce reasonable 5676 results on negative inputs. 5677 [Bodo Moeller] 5678 5679 *) Change BN_mod_mul so that the result is always non-negative. 5680 Previously, it could be negative if one of the factors was negative; 5681 I don't think anyone really wanted that behaviour. 5682 [Bodo Moeller] 5683 5684 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c 5685 (except for exponentiation, which stays in crypto/bn/bn_exp.c, 5686 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c) 5687 and add new functions: 5688 5689 BN_nnmod 5690 BN_mod_sqr 5691 BN_mod_add 5692 BN_mod_add_quick 5693 BN_mod_sub 5694 BN_mod_sub_quick 5695 BN_mod_lshift1 5696 BN_mod_lshift1_quick 5697 BN_mod_lshift 5698 BN_mod_lshift_quick 5699 5700 These functions always generate non-negative results. 5701 5702 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r 5703 such that |m| < r < 0, BN_nnmod will output rem + |m| instead). 5704 5705 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as 5706 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b] 5707 be reduced modulo m. 5708 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller] 5709 5710#if 0 5711 The following entry accidentily appeared in the CHANGES file 5712 distributed with OpenSSL 0.9.7. The modifications described in 5713 it do *not* apply to OpenSSL 0.9.7. 5714 5715 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 5716 was actually never needed) and in BN_mul(). The removal in BN_mul() 5717 required a small change in bn_mul_part_recursive() and the addition 5718 of the functions bn_cmp_part_words(), bn_sub_part_words() and 5719 bn_add_part_words(), which do the same thing as bn_cmp_words(), 5720 bn_sub_words() and bn_add_words() except they take arrays with 5721 differing sizes. 5722 [Richard Levitte] 5723#endif 5724 5725 *) In 'openssl passwd', verify passwords read from the terminal 5726 unless the '-salt' option is used (which usually means that 5727 verification would just waste user's time since the resulting 5728 hash is going to be compared with some given password hash) 5729 or the new '-noverify' option is used. 5730 5731 This is an incompatible change, but it does not affect 5732 non-interactive use of 'openssl passwd' (passwords on the command 5733 line, '-stdin' option, '-in ...' option) and thus should not 5734 cause any problems. 5735 [Bodo Moeller] 5736 5737 *) Remove all references to RSAref, since there's no more need for it. 5738 [Richard Levitte] 5739 5740 *) Make DSO load along a path given through an environment variable 5741 (SHLIB_PATH) with shl_load(). 5742 [Richard Levitte] 5743 5744 *) Constify the ENGINE code as a result of BIGNUM constification. 5745 Also constify the RSA code and most things related to it. In a 5746 few places, most notable in the depth of the ASN.1 code, ugly 5747 casts back to non-const were required (to be solved at a later 5748 time) 5749 [Richard Levitte] 5750 5751 *) Make it so the openssl application has all engines loaded by default. 5752 [Richard Levitte] 5753 5754 *) Constify the BIGNUM routines a little more. 5755 [Richard Levitte] 5756 5757 *) Add the following functions: 5758 5759 ENGINE_load_cswift() 5760 ENGINE_load_chil() 5761 ENGINE_load_atalla() 5762 ENGINE_load_nuron() 5763 ENGINE_load_builtin_engines() 5764 5765 That way, an application can itself choose if external engines that 5766 are built-in in OpenSSL shall ever be used or not. The benefit is 5767 that applications won't have to be linked with libdl or other dso 5768 libraries unless it's really needed. 5769 5770 Changed 'openssl engine' to load all engines on demand. 5771 Changed the engine header files to avoid the duplication of some 5772 declarations (they differed!). 5773 [Richard Levitte] 5774 5775 *) 'openssl engine' can now list capabilities. 5776 [Richard Levitte] 5777 5778 *) Better error reporting in 'openssl engine'. 5779 [Richard Levitte] 5780 5781 *) Never call load_dh_param(NULL) in s_server. 5782 [Bodo Moeller] 5783 5784 *) Add engine application. It can currently list engines by name and 5785 identity, and test if they are actually available. 5786 [Richard Levitte] 5787 5788 *) Improve RPM specification file by forcing symbolic linking and making 5789 sure the installed documentation is also owned by root.root. 5790 [Damien Miller <djm@mindrot.org>] 5791 5792 *) Give the OpenSSL applications more possibilities to make use of 5793 keys (public as well as private) handled by engines. 5794 [Richard Levitte] 5795 5796 *) Add OCSP code that comes from CertCo. 5797 [Richard Levitte] 5798 5799 *) Add VMS support for the Rijndael code. 5800 [Richard Levitte] 5801 5802 *) Added untested support for Nuron crypto accelerator. 5803 [Ben Laurie] 5804 5805 *) Add support for external cryptographic devices. This code was 5806 previously distributed separately as the "engine" branch. 5807 [Geoff Thorpe, Richard Levitte] 5808 5809 *) Rework the filename-translation in the DSO code. It is now possible to 5810 have far greater control over how a "name" is turned into a filename 5811 depending on the operating environment and any oddities about the 5812 different shared library filenames on each system. 5813 [Geoff Thorpe] 5814 5815 *) Support threads on FreeBSD-elf in Configure. 5816 [Richard Levitte] 5817 5818 *) Fix for SHA1 assembly problem with MASM: it produces 5819 warnings about corrupt line number information when assembling 5820 with debugging information. This is caused by the overlapping 5821 of two sections. 5822 [Bernd Matthes <mainbug@celocom.de>, Steve Henson] 5823 5824 *) NCONF changes. 5825 NCONF_get_number() has no error checking at all. As a replacement, 5826 NCONF_get_number_e() is defined (_e for "error checking") and is 5827 promoted strongly. The old NCONF_get_number is kept around for 5828 binary backward compatibility. 5829 Make it possible for methods to load from something other than a BIO, 5830 by providing a function pointer that is given a name instead of a BIO. 5831 For example, this could be used to load configuration data from an 5832 LDAP server. 5833 [Richard Levitte] 5834 5835 *) Fix for non blocking accept BIOs. Added new I/O special reason 5836 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs 5837 with non blocking I/O was not possible because no retry code was 5838 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover 5839 this case. 5840 [Steve Henson] 5841 5842 *) Added the beginnings of Rijndael support. 5843 [Ben Laurie] 5844 5845 *) Fix for bug in DirectoryString mask setting. Add support for 5846 X509_NAME_print_ex() in 'req' and X509_print_ex() function 5847 to allow certificate printing to more controllable, additional 5848 'certopt' option to 'x509' to allow new printing options to be 5849 set. 5850 [Steve Henson] 5851 5852 *) Clean old EAY MD5 hack from e_os.h. 5853 [Richard Levitte] 5854 5855 Changes between 0.9.6l and 0.9.6m [17 Mar 2004] 5856 5857 *) Fix null-pointer assignment in do_change_cipher_spec() revealed 5858 by using the Codenomicon TLS Test Tool (CVE-2004-0079) 5859 [Joe Orton, Steve Henson] 5860 5861 Changes between 0.9.6k and 0.9.6l [04 Nov 2003] 5862 5863 *) Fix additional bug revealed by the NISCC test suite: 5864 5865 Stop bug triggering large recursion when presented with 5866 certain ASN.1 tags (CVE-2003-0851) 5867 [Steve Henson] 5868 5869 Changes between 0.9.6j and 0.9.6k [30 Sep 2003] 5870 5871 *) Fix various bugs revealed by running the NISCC test suite: 5872 5873 Stop out of bounds reads in the ASN1 code when presented with 5874 invalid tags (CVE-2003-0543 and CVE-2003-0544). 5875 5876 If verify callback ignores invalid public key errors don't try to check 5877 certificate signature with the NULL public key. 5878 5879 [Steve Henson] 5880 5881 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 5882 if the server requested one: as stated in TLS 1.0 and SSL 3.0 5883 specifications. 5884 [Steve Henson] 5885 5886 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 5887 extra data after the compression methods not only for TLS 1.0 5888 but also for SSL 3.0 (as required by the specification). 5889 [Bodo Moeller; problem pointed out by Matthias Loepfe] 5890 5891 *) Change X509_certificate_type() to mark the key as exported/exportable 5892 when it's 512 *bits* long, not 512 bytes. 5893 [Richard Levitte] 5894 5895 Changes between 0.9.6i and 0.9.6j [10 Apr 2003] 5896 5897 *) Countermeasure against the Klima-Pokorny-Rosa extension of 5898 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 5899 a protocol version number mismatch like a decryption error 5900 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 5901 [Bodo Moeller] 5902 5903 *) Turn on RSA blinding by default in the default implementation 5904 to avoid a timing attack. Applications that don't want it can call 5905 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 5906 They would be ill-advised to do so in most cases. 5907 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller] 5908 5909 *) Change RSA blinding code so that it works when the PRNG is not 5910 seeded (in this case, the secret RSA exponent is abused as 5911 an unpredictable seed -- if it is not unpredictable, there 5912 is no point in blinding anyway). Make RSA blinding thread-safe 5913 by remembering the creator's thread ID in rsa->blinding and 5914 having all other threads use local one-time blinding factors 5915 (this requires more computation than sharing rsa->blinding, but 5916 avoids excessive locking; and if an RSA object is not shared 5917 between threads, blinding will still be very fast). 5918 [Bodo Moeller] 5919 5920 Changes between 0.9.6h and 0.9.6i [19 Feb 2003] 5921 5922 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 5923 via timing by performing a MAC computation even if incorrrect 5924 block cipher padding has been found. This is a countermeasure 5925 against active attacks where the attacker has to distinguish 5926 between bad padding and a MAC verification error. (CVE-2003-0078) 5927 5928 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 5929 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 5930 Martin Vuagnoux (EPFL, Ilion)] 5931 5932 Changes between 0.9.6g and 0.9.6h [5 Dec 2002] 5933 5934 *) New function OPENSSL_cleanse(), which is used to cleanse a section of 5935 memory from it's contents. This is done with a counter that will 5936 place alternating values in each byte. This can be used to solve 5937 two issues: 1) the removal of calls to memset() by highly optimizing 5938 compilers, and 2) cleansing with other values than 0, since those can 5939 be read through on certain media, for example a swap space on disk. 5940 [Geoff Thorpe] 5941 5942 *) Bugfix: client side session caching did not work with external caching, 5943 because the session->cipher setting was not restored when reloading 5944 from the external cache. This problem was masked, when 5945 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set. 5946 (Found by Steve Haslam <steve@araqnid.ddts.net>.) 5947 [Lutz Jaenicke] 5948 5949 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total 5950 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33. 5951 [Zeev Lieber <zeev-l@yahoo.com>] 5952 5953 *) Undo an undocumented change introduced in 0.9.6e which caused 5954 repeated calls to OpenSSL_add_all_ciphers() and 5955 OpenSSL_add_all_digests() to be ignored, even after calling 5956 EVP_cleanup(). 5957 [Richard Levitte] 5958 5959 *) Change the default configuration reader to deal with last line not 5960 being properly terminated. 5961 [Richard Levitte] 5962 5963 *) Change X509_NAME_cmp() so it applies the special rules on handling 5964 DN values that are of type PrintableString, as well as RDNs of type 5965 emailAddress where the value has the type ia5String. 5966 [stefank@valicert.com via Richard Levitte] 5967 5968 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half 5969 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently 5970 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be 5971 the bitwise-OR of the two for use by the majority of applications 5972 wanting this behaviour, and update the docs. The documented 5973 behaviour and actual behaviour were inconsistent and had been 5974 changing anyway, so this is more a bug-fix than a behavioural 5975 change. 5976 [Geoff Thorpe, diagnosed by Nadav Har'El] 5977 5978 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c 5979 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes). 5980 [Bodo Moeller] 5981 5982 *) Fix initialization code race conditions in 5983 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(), 5984 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(), 5985 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(), 5986 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(), 5987 ssl2_get_cipher_by_char(), 5988 ssl3_get_cipher_by_char(). 5989 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller] 5990 5991 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after 5992 the cached sessions are flushed, as the remove_cb() might use ex_data 5993 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com> 5994 (see [openssl.org #212]). 5995 [Geoff Thorpe, Lutz Jaenicke] 5996 5997 *) Fix typo in OBJ_txt2obj which incorrectly passed the content 5998 length, instead of the encoding length to d2i_ASN1_OBJECT. 5999 [Steve Henson] 6000 6001 Changes between 0.9.6f and 0.9.6g [9 Aug 2002] 6002 6003 *) [In 0.9.6g-engine release:] 6004 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall'). 6005 [Lynn Gazis <lgazis@rainbow.com>] 6006 6007 Changes between 0.9.6e and 0.9.6f [8 Aug 2002] 6008 6009 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX 6010 and get fix the header length calculation. 6011 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>, 6012 Alon Kantor <alonk@checkpoint.com> (and others), 6013 Steve Henson] 6014 6015 *) Use proper error handling instead of 'assertions' in buffer 6016 overflow checks added in 0.9.6e. This prevents DoS (the 6017 assertions could call abort()). 6018 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller] 6019 6020 Changes between 0.9.6d and 0.9.6e [30 Jul 2002] 6021 6022 *) Add various sanity checks to asn1_get_length() to reject 6023 the ASN1 length bytes if they exceed sizeof(long), will appear 6024 negative or the content length exceeds the length of the 6025 supplied buffer. 6026 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>] 6027 6028 *) Fix cipher selection routines: ciphers without encryption had no flags 6029 for the cipher strength set and where therefore not handled correctly 6030 by the selection routines (PR #130). 6031 [Lutz Jaenicke] 6032 6033 *) Fix EVP_dsa_sha macro. 6034 [Nils Larsch] 6035 6036 *) New option 6037 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS 6038 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure 6039 that was added in OpenSSL 0.9.6d. 6040 6041 As the countermeasure turned out to be incompatible with some 6042 broken SSL implementations, the new option is part of SSL_OP_ALL. 6043 SSL_OP_ALL is usually employed when compatibility with weird SSL 6044 implementations is desired (e.g. '-bugs' option to 's_client' and 6045 's_server'), so the new option is automatically set in many 6046 applications. 6047 [Bodo Moeller] 6048 6049 *) Changes in security patch: 6050 6051 Changes marked "(CHATS)" were sponsored by the Defense Advanced 6052 Research Projects Agency (DARPA) and Air Force Research Laboratory, 6053 Air Force Materiel Command, USAF, under agreement number 6054 F30602-01-2-0537. 6055 6056 *) Add various sanity checks to asn1_get_length() to reject 6057 the ASN1 length bytes if they exceed sizeof(long), will appear 6058 negative or the content length exceeds the length of the 6059 supplied buffer. (CVE-2002-0659) 6060 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>] 6061 6062 *) Assertions for various potential buffer overflows, not known to 6063 happen in practice. 6064 [Ben Laurie (CHATS)] 6065 6066 *) Various temporary buffers to hold ASCII versions of integers were 6067 too small for 64 bit platforms. (CVE-2002-0655) 6068 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)> 6069 6070 *) Remote buffer overflow in SSL3 protocol - an attacker could 6071 supply an oversized session ID to a client. (CVE-2002-0656) 6072 [Ben Laurie (CHATS)] 6073 6074 *) Remote buffer overflow in SSL2 protocol - an attacker could 6075 supply an oversized client master key. (CVE-2002-0656) 6076 [Ben Laurie (CHATS)] 6077 6078 Changes between 0.9.6c and 0.9.6d [9 May 2002] 6079 6080 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not 6081 encoded as NULL) with id-dsa-with-sha1. 6082 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller] 6083 6084 *) Check various X509_...() return values in apps/req.c. 6085 [Nils Larsch <nla@trustcenter.de>] 6086 6087 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines: 6088 an end-of-file condition would erronously be flagged, when the CRLF 6089 was just at the end of a processed block. The bug was discovered when 6090 processing data through a buffering memory BIO handing the data to a 6091 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov 6092 <ptsekov@syntrex.com> and Nedelcho Stanev. 6093 [Lutz Jaenicke] 6094 6095 *) Implement a countermeasure against a vulnerability recently found 6096 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment 6097 before application data chunks to avoid the use of known IVs 6098 with data potentially chosen by the attacker. 6099 [Bodo Moeller] 6100 6101 *) Fix length checks in ssl3_get_client_hello(). 6102 [Bodo Moeller] 6103 6104 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently 6105 to prevent ssl3_read_internal() from incorrectly assuming that 6106 ssl3_read_bytes() found application data while handshake 6107 processing was enabled when in fact s->s3->in_read_app_data was 6108 merely automatically cleared during the initial handshake. 6109 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>] 6110 6111 *) Fix object definitions for Private and Enterprise: they were not 6112 recognized in their shortname (=lowercase) representation. Extend 6113 obj_dat.pl to issue an error when using undefined keywords instead 6114 of silently ignoring the problem (Svenning Sorensen 6115 <sss@sss.dnsalias.net>). 6116 [Lutz Jaenicke] 6117 6118 *) Fix DH_generate_parameters() so that it works for 'non-standard' 6119 generators, i.e. generators other than 2 and 5. (Previously, the 6120 code did not properly initialise the 'add' and 'rem' values to 6121 BN_generate_prime().) 6122 6123 In the new general case, we do not insist that 'generator' is 6124 actually a primitive root: This requirement is rather pointless; 6125 a generator of the order-q subgroup is just as good, if not 6126 better. 6127 [Bodo Moeller] 6128 6129 *) Map new X509 verification errors to alerts. Discovered and submitted by 6130 Tom Wu <tom@arcot.com>. 6131 [Lutz Jaenicke] 6132 6133 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from 6134 returning non-zero before the data has been completely received 6135 when using non-blocking I/O. 6136 [Bodo Moeller; problem pointed out by John Hughes] 6137 6138 *) Some of the ciphers missed the strength entry (SSL_LOW etc). 6139 [Ben Laurie, Lutz Jaenicke] 6140 6141 *) Fix bug in SSL_clear(): bad sessions were not removed (found by 6142 Yoram Zahavi <YoramZ@gilian.com>). 6143 [Lutz Jaenicke] 6144 6145 *) Add information about CygWin 1.3 and on, and preserve proper 6146 configuration for the versions before that. 6147 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte] 6148 6149 *) Make removal from session cache (SSL_CTX_remove_session()) more robust: 6150 check whether we deal with a copy of a session and do not delete from 6151 the cache in this case. Problem reported by "Izhar Shoshani Levi" 6152 <izhar@checkpoint.com>. 6153 [Lutz Jaenicke] 6154 6155 *) Do not store session data into the internal session cache, if it 6156 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP 6157 flag is set). Proposed by Aslam <aslam@funk.com>. 6158 [Lutz Jaenicke] 6159 6160 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested 6161 value is 0. 6162 [Richard Levitte] 6163 6164 *) [In 0.9.6d-engine release:] 6165 Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 6166 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] 6167 6168 *) Add the configuration target linux-s390x. 6169 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte] 6170 6171 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of 6172 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag 6173 variable as an indication that a ClientHello message has been 6174 received. As the flag value will be lost between multiple 6175 invocations of ssl3_accept when using non-blocking I/O, the 6176 function may not be aware that a handshake has actually taken 6177 place, thus preventing a new session from being added to the 6178 session cache. 6179 6180 To avoid this problem, we now set s->new_session to 2 instead of 6181 using a local variable. 6182 [Lutz Jaenicke, Bodo Moeller] 6183 6184 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c) 6185 if the SSL_R_LENGTH_MISMATCH error is detected. 6186 [Geoff Thorpe, Bodo Moeller] 6187 6188 *) New 'shared_ldflag' column in Configure platform table. 6189 [Richard Levitte] 6190 6191 *) Fix EVP_CIPHER_mode macro. 6192 ["Dan S. Camper" <dan@bti.net>] 6193 6194 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown 6195 type, we must throw them away by setting rr->length to 0. 6196 [D P Chang <dpc@qualys.com>] 6197 6198 Changes between 0.9.6b and 0.9.6c [21 dec 2001] 6199 6200 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl 6201 <Dominikus.Scherkl@biodata.com>. (The previous implementation 6202 worked incorrectly for those cases where range = 10..._2 and 6203 3*range is two bits longer than range.) 6204 [Bodo Moeller] 6205 6206 *) Only add signing time to PKCS7 structures if it is not already 6207 present. 6208 [Steve Henson] 6209 6210 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce", 6211 OBJ_ld_ce should be OBJ_id_ce. 6212 Also some ip-pda OIDs in crypto/objects/objects.txt were 6213 incorrect (cf. RFC 3039). 6214 [Matt Cooper, Frederic Giudicelli, Bodo Moeller] 6215 6216 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid() 6217 returns early because it has nothing to do. 6218 [Andy Schneider <andy.schneider@bjss.co.uk>] 6219 6220 *) [In 0.9.6c-engine release:] 6221 Fix mutex callback return values in crypto/engine/hw_ncipher.c. 6222 [Andy Schneider <andy.schneider@bjss.co.uk>] 6223 6224 *) [In 0.9.6c-engine release:] 6225 Add support for Cryptographic Appliance's keyserver technology. 6226 (Use engine 'keyclient') 6227 [Cryptographic Appliances and Geoff Thorpe] 6228 6229 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89' 6230 is called via tools/c89.sh because arguments have to be 6231 rearranged (all '-L' options must appear before the first object 6232 modules). 6233 [Richard Shapiro <rshapiro@abinitio.com>] 6234 6235 *) [In 0.9.6c-engine release:] 6236 Add support for Broadcom crypto accelerator cards, backported 6237 from 0.9.7. 6238 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox] 6239 6240 *) [In 0.9.6c-engine release:] 6241 Add support for SureWare crypto accelerator cards from 6242 Baltimore Technologies. (Use engine 'sureware') 6243 [Baltimore Technologies and Mark Cox] 6244 6245 *) [In 0.9.6c-engine release:] 6246 Add support for crypto accelerator cards from Accelerated 6247 Encryption Processing, www.aep.ie. (Use engine 'aep') 6248 [AEP Inc. and Mark Cox] 6249 6250 *) Add a configuration entry for gcc on UnixWare. 6251 [Gary Benson <gbenson@redhat.com>] 6252 6253 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake 6254 messages are stored in a single piece (fixed-length part and 6255 variable-length part combined) and fix various bugs found on the way. 6256 [Bodo Moeller] 6257 6258 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname() 6259 instead. BIO_gethostbyname() does not know what timeouts are 6260 appropriate, so entries would stay in cache even when they have 6261 become invalid. 6262 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com> 6263 6264 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when 6265 faced with a pathologically small ClientHello fragment that does 6266 not contain client_version: Instead of aborting with an error, 6267 simply choose the highest available protocol version (i.e., 6268 TLS 1.0 unless it is disabled). In practice, ClientHello 6269 messages are never sent like this, but this change gives us 6270 strictly correct behaviour at least for TLS. 6271 [Bodo Moeller] 6272 6273 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear() 6274 never resets s->method to s->ctx->method when called from within 6275 one of the SSL handshake functions. 6276 [Bodo Moeller; problem pointed out by Niko Baric] 6277 6278 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert 6279 (sent using the client's version number) if client_version is 6280 smaller than the protocol version in use. Also change 6281 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if 6282 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then 6283 the client will at least see that alert. 6284 [Bodo Moeller] 6285 6286 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation 6287 correctly. 6288 [Bodo Moeller] 6289 6290 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a 6291 client receives HelloRequest while in a handshake. 6292 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>] 6293 6294 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C 6295 should end in 'break', not 'goto end' which circuments various 6296 cleanups done in state SSL_ST_OK. But session related stuff 6297 must be disabled for SSL_ST_OK in the case that we just sent a 6298 HelloRequest. 6299 6300 Also avoid some overhead by not calling ssl_init_wbio_buffer() 6301 before just sending a HelloRequest. 6302 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>] 6303 6304 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't 6305 reveal whether illegal block cipher padding was found or a MAC 6306 verification error occured. (Neither SSLerr() codes nor alerts 6307 are directly visible to potential attackers, but the information 6308 may leak via logfiles.) 6309 6310 Similar changes are not required for the SSL 2.0 implementation 6311 because the number of padding bytes is sent in clear for SSL 2.0, 6312 and the extra bytes are just ignored. However ssl/s2_pkt.c 6313 failed to verify that the purported number of padding bytes is in 6314 the legal range. 6315 [Bodo Moeller] 6316 6317 *) Add OpenUNIX-8 support including shared libraries 6318 (Boyd Lynn Gerber <gerberb@zenez.com>). 6319 [Lutz Jaenicke] 6320 6321 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid 6322 'wristwatch attack' using huge encoding parameters (cf. 6323 James H. Manger's CRYPTO 2001 paper). Note that the 6324 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use 6325 encoding parameters and hence was not vulnerable. 6326 [Bodo Moeller] 6327 6328 *) BN_sqr() bug fix. 6329 [Ulf M�ller, reported by Jim Ellis <jim.ellis@cavium.com>] 6330 6331 *) Rabin-Miller test analyses assume uniformly distributed witnesses, 6332 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand() 6333 followed by modular reduction. 6334 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>] 6335 6336 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range() 6337 equivalent based on BN_pseudo_rand() instead of BN_rand(). 6338 [Bodo Moeller] 6339 6340 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB). 6341 This function was broken, as the check for a new client hello message 6342 to handle SGC did not allow these large messages. 6343 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.) 6344 [Lutz Jaenicke] 6345 6346 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long](). 6347 [Lutz Jaenicke] 6348 6349 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl() 6350 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>). 6351 [Lutz Jaenicke] 6352 6353 *) Rework the configuration and shared library support for Tru64 Unix. 6354 The configuration part makes use of modern compiler features and 6355 still retains old compiler behavior for those that run older versions 6356 of the OS. The shared library support part includes a variant that 6357 uses the RPATH feature, and is available through the special 6358 configuration target "alpha-cc-rpath", which will never be selected 6359 automatically. 6360 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte] 6361 6362 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message() 6363 with the same message size as in ssl3_get_certificate_request(). 6364 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest 6365 messages might inadvertently be reject as too long. 6366 [Petr Lampa <lampa@fee.vutbr.cz>] 6367 6368 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX). 6369 [Andy Polyakov] 6370 6371 *) Modified SSL library such that the verify_callback that has been set 6372 specificly for an SSL object with SSL_set_verify() is actually being 6373 used. Before the change, a verify_callback set with this function was 6374 ignored and the verify_callback() set in the SSL_CTX at the time of 6375 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced 6376 to allow the necessary settings. 6377 [Lutz Jaenicke] 6378 6379 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c 6380 explicitly to NULL, as at least on Solaris 8 this seems not always to be 6381 done automatically (in contradiction to the requirements of the C 6382 standard). This made problems when used from OpenSSH. 6383 [Lutz Jaenicke] 6384 6385 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored 6386 dh->length and always used 6387 6388 BN_rand_range(priv_key, dh->p). 6389 6390 BN_rand_range() is not necessary for Diffie-Hellman, and this 6391 specific range makes Diffie-Hellman unnecessarily inefficient if 6392 dh->length (recommended exponent length) is much smaller than the 6393 length of dh->p. We could use BN_rand_range() if the order of 6394 the subgroup was stored in the DH structure, but we only have 6395 dh->length. 6396 6397 So switch back to 6398 6399 BN_rand(priv_key, l, ...) 6400 6401 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1 6402 otherwise. 6403 [Bodo Moeller] 6404 6405 *) In 6406 6407 RSA_eay_public_encrypt 6408 RSA_eay_private_decrypt 6409 RSA_eay_private_encrypt (signing) 6410 RSA_eay_public_decrypt (signature verification) 6411 6412 (default implementations for RSA_public_encrypt, 6413 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt), 6414 always reject numbers >= n. 6415 [Bodo Moeller] 6416 6417 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2 6418 to synchronize access to 'locking_thread'. This is necessary on 6419 systems where access to 'locking_thread' (an 'unsigned long' 6420 variable) is not atomic. 6421 [Bodo Moeller] 6422 6423 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID 6424 *before* setting the 'crypto_lock_rand' flag. The previous code had 6425 a race condition if 0 is a valid thread ID. 6426 [Travis Vitek <vitek@roguewave.com>] 6427 6428 *) Add support for shared libraries under Irix. 6429 [Albert Chin-A-Young <china@thewrittenword.com>] 6430 6431 *) Add configuration option to build on Linux on both big-endian and 6432 little-endian MIPS. 6433 [Ralf Baechle <ralf@uni-koblenz.de>] 6434 6435 *) Add the possibility to create shared libraries on HP-UX. 6436 [Richard Levitte] 6437 6438 Changes between 0.9.6a and 0.9.6b [9 Jul 2001] 6439 6440 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c) 6441 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by 6442 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>: 6443 PRNG state recovery was possible based on the output of 6444 one PRNG request appropriately sized to gain knowledge on 6445 'md' followed by enough consecutive 1-byte PRNG requests 6446 to traverse all of 'state'. 6447 6448 1. When updating 'md_local' (the current thread's copy of 'md') 6449 during PRNG output generation, hash all of the previous 6450 'md_local' value, not just the half used for PRNG output. 6451 6452 2. Make the number of bytes from 'state' included into the hash 6453 independent from the number of PRNG bytes requested. 6454 6455 The first measure alone would be sufficient to avoid 6456 Markku-Juhani's attack. (Actually it had never occurred 6457 to me that the half of 'md_local' used for chaining was the 6458 half from which PRNG output bytes were taken -- I had always 6459 assumed that the secret half would be used.) The second 6460 measure makes sure that additional data from 'state' is never 6461 mixed into 'md_local' in small portions; this heuristically 6462 further strengthens the PRNG. 6463 [Bodo Moeller] 6464 6465 *) Fix crypto/bn/asm/mips3.s. 6466 [Andy Polyakov] 6467 6468 *) When only the key is given to "enc", the IV is undefined. Print out 6469 an error message in this case. 6470 [Lutz Jaenicke] 6471 6472 *) Handle special case when X509_NAME is empty in X509 printing routines. 6473 [Steve Henson] 6474 6475 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are 6476 positive and less than q. 6477 [Bodo Moeller] 6478 6479 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is 6480 used: it isn't thread safe and the add_lock_callback should handle 6481 that itself. 6482 [Paul Rose <Paul.Rose@bridge.com>] 6483 6484 *) Verify that incoming data obeys the block size in 6485 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c). 6486 [Bodo Moeller] 6487 6488 *) Fix OAEP check. 6489 [Ulf M�ller, Bodo M�ller] 6490 6491 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5 6492 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5 6493 when fixing the server behaviour for backwards-compatible 'client 6494 hello' messages. (Note that the attack is impractical against 6495 SSL 3.0 and TLS 1.0 anyway because length and version checking 6496 means that the probability of guessing a valid ciphertext is 6497 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98 6498 paper.) 6499 6500 Before 0.9.5, the countermeasure (hide the error by generating a 6501 random 'decryption result') did not work properly because 6502 ERR_clear_error() was missing, meaning that SSL_get_error() would 6503 detect the supposedly ignored error. 6504 6505 Both problems are now fixed. 6506 [Bodo Moeller] 6507 6508 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096 6509 (previously it was 1024). 6510 [Bodo Moeller] 6511 6512 *) Fix for compatibility mode trust settings: ignore trust settings 6513 unless some valid trust or reject settings are present. 6514 [Steve Henson] 6515 6516 *) Fix for blowfish EVP: its a variable length cipher. 6517 [Steve Henson] 6518 6519 *) Fix various bugs related to DSA S/MIME verification. Handle missing 6520 parameters in DSA public key structures and return an error in the 6521 DSA routines if parameters are absent. 6522 [Steve Henson] 6523 6524 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd" 6525 in the current directory if neither $RANDFILE nor $HOME was set. 6526 RAND_file_name() in 0.9.6a returned NULL in this case. This has 6527 caused some confusion to Windows users who haven't defined $HOME. 6528 Thus RAND_file_name() is changed again: e_os.h can define a 6529 DEFAULT_HOME, which will be used if $HOME is not set. 6530 For Windows, we use "C:"; on other platforms, we still require 6531 environment variables. 6532 6533 *) Move 'if (!initialized) RAND_poll()' into regions protected by 6534 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids 6535 having multiple threads call RAND_poll() concurrently. 6536 [Bodo Moeller] 6537 6538 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a 6539 combination of a flag and a thread ID variable. 6540 Otherwise while one thread is in ssleay_rand_bytes (which sets the 6541 flag), *other* threads can enter ssleay_add_bytes without obeying 6542 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock 6543 that they do not hold after the first thread unsets add_do_not_lock). 6544 [Bodo Moeller] 6545 6546 *) Change bctest again: '-x' expressions are not available in all 6547 versions of 'test'. 6548 [Bodo Moeller] 6549 6550 Changes between 0.9.6 and 0.9.6a [5 Apr 2001] 6551 6552 *) Fix a couple of memory leaks in PKCS7_dataDecode() 6553 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>] 6554 6555 *) Change Configure and Makefiles to provide EXE_EXT, which will contain 6556 the default extension for executables, if any. Also, make the perl 6557 scripts that use symlink() to test if it really exists and use "cp" 6558 if it doesn't. All this made OpenSSL compilable and installable in 6559 CygWin. 6560 [Richard Levitte] 6561 6562 *) Fix for asn1_GetSequence() for indefinite length constructed data. 6563 If SEQUENCE is length is indefinite just set c->slen to the total 6564 amount of data available. 6565 [Steve Henson, reported by shige@FreeBSD.org] 6566 [This change does not apply to 0.9.7.] 6567 6568 *) Change bctest to avoid here-documents inside command substitution 6569 (workaround for FreeBSD /bin/sh bug). 6570 For compatibility with Ultrix, avoid shell functions (introduced 6571 in the bctest version that searches along $PATH). 6572 [Bodo Moeller] 6573 6574 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes 6575 with des_encrypt() defined on some operating systems, like Solaris 6576 and UnixWare. 6577 [Richard Levitte] 6578 6579 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton: 6580 On the Importance of Eliminating Errors in Cryptographic 6581 Computations, J. Cryptology 14 (2001) 2, 101-119, 6582 http://theory.stanford.edu/~dabo/papers/faults.ps.gz). 6583 [Ulf Moeller] 6584 6585 *) MIPS assembler BIGNUM division bug fix. 6586 [Andy Polyakov] 6587 6588 *) Disabled incorrect Alpha assembler code. 6589 [Richard Levitte] 6590 6591 *) Fix PKCS#7 decode routines so they correctly update the length 6592 after reading an EOC for the EXPLICIT tag. 6593 [Steve Henson] 6594 [This change does not apply to 0.9.7.] 6595 6596 *) Fix bug in PKCS#12 key generation routines. This was triggered 6597 if a 3DES key was generated with a 0 initial byte. Include 6598 PKCS12_BROKEN_KEYGEN compilation option to retain the old 6599 (but broken) behaviour. 6600 [Steve Henson] 6601 6602 *) Enhance bctest to search for a working bc along $PATH and print 6603 it when found. 6604 [Tim Rice <tim@multitalents.net> via Richard Levitte] 6605 6606 *) Fix memory leaks in err.c: free err_data string if necessary; 6607 don't write to the wrong index in ERR_set_error_data. 6608 [Bodo Moeller] 6609 6610 *) Implement ssl23_peek (analogous to ssl23_read), which previously 6611 did not exist. 6612 [Bodo Moeller] 6613 6614 *) Replace rdtsc with _emit statements for VC++ version 5. 6615 [Jeremy Cooper <jeremy@baymoo.org>] 6616 6617 *) Make it possible to reuse SSLv2 sessions. 6618 [Richard Levitte] 6619 6620 *) In copy_email() check for >= 0 as a return value for 6621 X509_NAME_get_index_by_NID() since 0 is a valid index. 6622 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>] 6623 6624 *) Avoid coredump with unsupported or invalid public keys by checking if 6625 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when 6626 PKCS7_verify() fails with non detached data. 6627 [Steve Henson] 6628 6629 *) Don't use getenv in library functions when run as setuid/setgid. 6630 New function OPENSSL_issetugid(). 6631 [Ulf Moeller] 6632 6633 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c) 6634 due to incorrect handling of multi-threading: 6635 6636 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl(). 6637 6638 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on(). 6639 6640 3. Count how many times MemCheck_off() has been called so that 6641 nested use can be treated correctly. This also avoids 6642 inband-signalling in the previous code (which relied on the 6643 assumption that thread ID 0 is impossible). 6644 [Bodo Moeller] 6645 6646 *) Add "-rand" option also to s_client and s_server. 6647 [Lutz Jaenicke] 6648 6649 *) Fix CPU detection on Irix 6.x. 6650 [Kurt Hockenbury <khockenb@stevens-tech.edu> and 6651 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>] 6652 6653 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME 6654 was empty. 6655 [Steve Henson] 6656 [This change does not apply to 0.9.7.] 6657 6658 *) Use the cached encoding of an X509_NAME structure rather than 6659 copying it. This is apparently the reason for the libsafe "errors" 6660 but the code is actually correct. 6661 [Steve Henson] 6662 6663 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent 6664 Bleichenbacher's DSA attack. 6665 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits 6666 to be set and top=0 forces the highest bit to be set; top=-1 is new 6667 and leaves the highest bit random. 6668 [Ulf Moeller, Bodo Moeller] 6669 6670 *) In the NCONF_...-based implementations for CONF_... queries 6671 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using 6672 a temporary CONF structure with the data component set to NULL 6673 (which gives segmentation faults in lh_retrieve). 6674 Instead, use NULL for the CONF pointer in CONF_get_string and 6675 CONF_get_number (which may use environment variables) and directly 6676 return NULL from CONF_get_section. 6677 [Bodo Moeller] 6678 6679 *) Fix potential buffer overrun for EBCDIC. 6680 [Ulf Moeller] 6681 6682 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign 6683 keyUsage if basicConstraints absent for a CA. 6684 [Steve Henson] 6685 6686 *) Make SMIME_write_PKCS7() write mail header values with a format that 6687 is more generally accepted (no spaces before the semicolon), since 6688 some programs can't parse those values properly otherwise. Also make 6689 sure BIO's that break lines after each write do not create invalid 6690 headers. 6691 [Richard Levitte] 6692 6693 *) Make the CRL encoding routines work with empty SEQUENCE OF. The 6694 macros previously used would not encode an empty SEQUENCE OF 6695 and break the signature. 6696 [Steve Henson] 6697 [This change does not apply to 0.9.7.] 6698 6699 *) Zero the premaster secret after deriving the master secret in 6700 DH ciphersuites. 6701 [Steve Henson] 6702 6703 *) Add some EVP_add_digest_alias registrations (as found in 6704 OpenSSL_add_all_digests()) to SSL_library_init() 6705 aka OpenSSL_add_ssl_algorithms(). This provides improved 6706 compatibility with peers using X.509 certificates 6707 with unconventional AlgorithmIdentifier OIDs. 6708 [Bodo Moeller] 6709 6710 *) Fix for Irix with NO_ASM. 6711 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>] 6712 6713 *) ./config script fixes. 6714 [Ulf Moeller, Richard Levitte] 6715 6716 *) Fix 'openssl passwd -1'. 6717 [Bodo Moeller] 6718 6719 *) Change PKCS12_key_gen_asc() so it can cope with non null 6720 terminated strings whose length is passed in the passlen 6721 parameter, for example from PEM callbacks. This was done 6722 by adding an extra length parameter to asc2uni(). 6723 [Steve Henson, reported by <oddissey@samsung.co.kr>] 6724 6725 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn 6726 call failed, free the DSA structure. 6727 [Bodo Moeller] 6728 6729 *) Fix to uni2asc() to cope with zero length Unicode strings. 6730 These are present in some PKCS#12 files. 6731 [Steve Henson] 6732 6733 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c). 6734 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits 6735 when writing a 32767 byte record. 6736 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>] 6737 6738 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c), 6739 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}. 6740 6741 (RSA objects have a reference count access to which is protected 6742 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c], 6743 so they are meant to be shared between threads.) 6744 [Bodo Moeller, Geoff Thorpe; original patch submitted by 6745 "Reddie, Steven" <Steven.Reddie@ca.com>] 6746 6747 *) Fix a deadlock in CRYPTO_mem_leaks(). 6748 [Bodo Moeller] 6749 6750 *) Use better test patterns in bntest. 6751 [Ulf M�ller] 6752 6753 *) rand_win.c fix for Borland C. 6754 [Ulf M�ller] 6755 6756 *) BN_rshift bugfix for n == 0. 6757 [Bodo Moeller] 6758 6759 *) Add a 'bctest' script that checks for some known 'bc' bugs 6760 so that 'make test' does not abort just because 'bc' is broken. 6761 [Bodo Moeller] 6762 6763 *) Store verify_result within SSL_SESSION also for client side to 6764 avoid potential security hole. (Re-used sessions on the client side 6765 always resulted in verify_result==X509_V_OK, not using the original 6766 result of the server certificate verification.) 6767 [Lutz Jaenicke] 6768 6769 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type 6770 SSL3_RT_APPLICATION_DATA, return 0. 6771 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true. 6772 [Bodo Moeller] 6773 6774 *) Fix SSL_peek: 6775 Both ssl2_peek and ssl3_peek, which were totally broken in earlier 6776 releases, have been re-implemented by renaming the previous 6777 implementations of ssl2_read and ssl3_read to ssl2_read_internal 6778 and ssl3_read_internal, respectively, and adding 'peek' parameters 6779 to them. The new ssl[23]_{read,peek} functions are calls to 6780 ssl[23]_read_internal with the 'peek' flag set appropriately. 6781 A 'peek' parameter has also been added to ssl3_read_bytes, which 6782 does the actual work for ssl3_read_internal. 6783 [Bodo Moeller] 6784 6785 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling 6786 the method-specific "init()" handler. Also clean up ex_data after 6787 calling the method-specific "finish()" handler. Previously, this was 6788 happening the other way round. 6789 [Geoff Thorpe] 6790 6791 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16. 6792 The previous value, 12, was not always sufficient for BN_mod_exp(). 6793 [Bodo Moeller] 6794 6795 *) Make sure that shared libraries get the internal name engine with 6796 the full version number and not just 0. This should mark the 6797 shared libraries as not backward compatible. Of course, this should 6798 be changed again when we can guarantee backward binary compatibility. 6799 [Richard Levitte] 6800 6801 *) Fix typo in get_cert_by_subject() in by_dir.c 6802 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>] 6803 6804 *) Rework the system to generate shared libraries: 6805 6806 - Make note of the expected extension for the shared libraries and 6807 if there is a need for symbolic links from for example libcrypto.so.0 6808 to libcrypto.so.0.9.7. There is extended info in Configure for 6809 that. 6810 6811 - Make as few rebuilds of the shared libraries as possible. 6812 6813 - Still avoid linking the OpenSSL programs with the shared libraries. 6814 6815 - When installing, install the shared libraries separately from the 6816 static ones. 6817 [Richard Levitte] 6818 6819 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument. 6820 6821 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new 6822 and not in SSL_clear because the latter is also used by the 6823 accept/connect functions; previously, the settings made by 6824 SSL_set_read_ahead would be lost during the handshake. 6825 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>] 6826 6827 *) Correct util/mkdef.pl to be selective about disabled algorithms. 6828 Previously, it would create entries for disableed algorithms no 6829 matter what. 6830 [Richard Levitte] 6831 6832 *) Added several new manual pages for SSL_* function. 6833 [Lutz Jaenicke] 6834 6835 Changes between 0.9.5a and 0.9.6 [24 Sep 2000] 6836 6837 *) In ssl23_get_client_hello, generate an error message when faced 6838 with an initial SSL 3.0/TLS record that is too small to contain the 6839 first two bytes of the ClientHello message, i.e. client_version. 6840 (Note that this is a pathologic case that probably has never happened 6841 in real life.) The previous approach was to use the version number 6842 from the record header as a substitute; but our protocol choice 6843 should not depend on that one because it is not authenticated 6844 by the Finished messages. 6845 [Bodo Moeller] 6846 6847 *) More robust randomness gathering functions for Windows. 6848 [Jeffrey Altman <jaltman@columbia.edu>] 6849 6850 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is 6851 not set then we don't setup the error code for issuer check errors 6852 to avoid possibly overwriting other errors which the callback does 6853 handle. If an application does set the flag then we assume it knows 6854 what it is doing and can handle the new informational codes 6855 appropriately. 6856 [Steve Henson] 6857 6858 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for 6859 a general "ANY" type, as such it should be able to decode anything 6860 including tagged types. However it didn't check the class so it would 6861 wrongly interpret tagged types in the same way as their universal 6862 counterpart and unknown types were just rejected. Changed so that the 6863 tagged and unknown types are handled in the same way as a SEQUENCE: 6864 that is the encoding is stored intact. There is also a new type 6865 "V_ASN1_OTHER" which is used when the class is not universal, in this 6866 case we have no idea what the actual type is so we just lump them all 6867 together. 6868 [Steve Henson] 6869 6870 *) On VMS, stdout may very well lead to a file that is written to 6871 in a record-oriented fashion. That means that every write() will 6872 write a separate record, which will be read separately by the 6873 programs trying to read from it. This can be very confusing. 6874 6875 The solution is to put a BIO filter in the way that will buffer 6876 text until a linefeed is reached, and then write everything a 6877 line at a time, so every record written will be an actual line, 6878 not chunks of lines and not (usually doesn't happen, but I've 6879 seen it once) several lines in one record. BIO_f_linebuffer() is 6880 the answer. 6881 6882 Currently, it's a VMS-only method, because that's where it has 6883 been tested well enough. 6884 [Richard Levitte] 6885 6886 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery, 6887 it can return incorrect results. 6888 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a, 6889 but it was in 0.9.6-beta[12].) 6890 [Bodo Moeller] 6891 6892 *) Disable the check for content being present when verifying detached 6893 signatures in pk7_smime.c. Some versions of Netscape (wrongly) 6894 include zero length content when signing messages. 6895 [Steve Henson] 6896 6897 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR 6898 BIO_ctrl (for BIO pairs). 6899 [Bodo M�ller] 6900 6901 *) Add DSO method for VMS. 6902 [Richard Levitte] 6903 6904 *) Bug fix: Montgomery multiplication could produce results with the 6905 wrong sign. 6906 [Ulf M�ller] 6907 6908 *) Add RPM specification openssl.spec and modify it to build three 6909 packages. The default package contains applications, application 6910 documentation and run-time libraries. The devel package contains 6911 include files, static libraries and function documentation. The 6912 doc package contains the contents of the doc directory. The original 6913 openssl.spec was provided by Damien Miller <djm@mindrot.org>. 6914 [Richard Levitte] 6915 6916 *) Add a large number of documentation files for many SSL routines. 6917 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>] 6918 6919 *) Add a configuration entry for Sony News 4. 6920 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>] 6921 6922 *) Don't set the two most significant bits to one when generating a 6923 random number < q in the DSA library. 6924 [Ulf M�ller] 6925 6926 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default 6927 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if 6928 the underlying transport is blocking) if a handshake took place. 6929 (The default behaviour is needed by applications such as s_client 6930 and s_server that use select() to determine when to use SSL_read; 6931 but for applications that know in advance when to expect data, it 6932 just makes things more complicated.) 6933 [Bodo Moeller] 6934 6935 *) Add RAND_egd_bytes(), which gives control over the number of bytes read 6936 from EGD. 6937 [Ben Laurie] 6938 6939 *) Add a few more EBCDIC conditionals that make `req' and `x509' 6940 work better on such systems. 6941 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] 6942 6943 *) Add two demo programs for PKCS12_parse() and PKCS12_create(). 6944 Update PKCS12_parse() so it copies the friendlyName and the 6945 keyid to the certificates aux info. 6946 [Steve Henson] 6947 6948 *) Fix bug in PKCS7_verify() which caused an infinite loop 6949 if there was more than one signature. 6950 [Sven Uszpelkat <su@celocom.de>] 6951 6952 *) Major change in util/mkdef.pl to include extra information 6953 about each symbol, as well as presentig variables as well 6954 as functions. This change means that there's n more need 6955 to rebuild the .num files when some algorithms are excluded. 6956 [Richard Levitte] 6957 6958 *) Allow the verify time to be set by an application, 6959 rather than always using the current time. 6960 [Steve Henson] 6961 6962 *) Phase 2 verify code reorganisation. The certificate 6963 verify code now looks up an issuer certificate by a 6964 number of criteria: subject name, authority key id 6965 and key usage. It also verifies self signed certificates 6966 by the same criteria. The main comparison function is 6967 X509_check_issued() which performs these checks. 6968 6969 Lot of changes were necessary in order to support this 6970 without completely rewriting the lookup code. 6971 6972 Authority and subject key identifier are now cached. 6973 6974 The LHASH 'certs' is X509_STORE has now been replaced 6975 by a STACK_OF(X509_OBJECT). This is mainly because an 6976 LHASH can't store or retrieve multiple objects with 6977 the same hash value. 6978 6979 As a result various functions (which were all internal 6980 use only) have changed to handle the new X509_STORE 6981 structure. This will break anything that messed round 6982 with X509_STORE internally. 6983 6984 The functions X509_STORE_add_cert() now checks for an 6985 exact match, rather than just subject name. 6986 6987 The X509_STORE API doesn't directly support the retrieval 6988 of multiple certificates matching a given criteria, however 6989 this can be worked round by performing a lookup first 6990 (which will fill the cache with candidate certificates) 6991 and then examining the cache for matches. This is probably 6992 the best we can do without throwing out X509_LOOKUP 6993 entirely (maybe later...). 6994 6995 The X509_VERIFY_CTX structure has been enhanced considerably. 6996 6997 All certificate lookup operations now go via a get_issuer() 6998 callback. Although this currently uses an X509_STORE it 6999 can be replaced by custom lookups. This is a simple way 7000 to bypass the X509_STORE hackery necessary to make this 7001 work and makes it possible to use more efficient techniques 7002 in future. A very simple version which uses a simple 7003 STACK for its trusted certificate store is also provided 7004 using X509_STORE_CTX_trusted_stack(). 7005 7006 The verify_cb() and verify() callbacks now have equivalents 7007 in the X509_STORE_CTX structure. 7008 7009 X509_STORE_CTX also has a 'flags' field which can be used 7010 to customise the verify behaviour. 7011 [Steve Henson] 7012 7013 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which 7014 excludes S/MIME capabilities. 7015 [Steve Henson] 7016 7017 *) When a certificate request is read in keep a copy of the 7018 original encoding of the signed data and use it when outputing 7019 again. Signatures then use the original encoding rather than 7020 a decoded, encoded version which may cause problems if the 7021 request is improperly encoded. 7022 [Steve Henson] 7023 7024 *) For consistency with other BIO_puts implementations, call 7025 buffer_write(b, ...) directly in buffer_puts instead of calling 7026 BIO_write(b, ...). 7027 7028 In BIO_puts, increment b->num_write as in BIO_write. 7029 [Peter.Sylvester@EdelWeb.fr] 7030 7031 *) Fix BN_mul_word for the case where the word is 0. (We have to use 7032 BN_zero, we may not return a BIGNUM with an array consisting of 7033 words set to zero.) 7034 [Bodo Moeller] 7035 7036 *) Avoid calling abort() from within the library when problems are 7037 detected, except if preprocessor symbols have been defined 7038 (such as REF_CHECK, BN_DEBUG etc.). 7039 [Bodo Moeller] 7040 7041 *) New openssl application 'rsautl'. This utility can be 7042 used for low level RSA operations. DER public key 7043 BIO/fp routines also added. 7044 [Steve Henson] 7045 7046 *) New Configure entry and patches for compiling on QNX 4. 7047 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>] 7048 7049 *) A demo state-machine implementation was sponsored by 7050 Nuron (http://www.nuron.com/) and is now available in 7051 demos/state_machine. 7052 [Ben Laurie] 7053 7054 *) New options added to the 'dgst' utility for signature 7055 generation and verification. 7056 [Steve Henson] 7057 7058 *) Unrecognized PKCS#7 content types are now handled via a 7059 catch all ASN1_TYPE structure. This allows unsupported 7060 types to be stored as a "blob" and an application can 7061 encode and decode it manually. 7062 [Steve Henson] 7063 7064 *) Fix various signed/unsigned issues to make a_strex.c 7065 compile under VC++. 7066 [Oscar Jacobsson <oscar.jacobsson@celocom.com>] 7067 7068 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct 7069 length if passed a buffer. ASN1_INTEGER_to_BN failed 7070 if passed a NULL BN and its argument was negative. 7071 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>] 7072 7073 *) Modification to PKCS#7 encoding routines to output definite 7074 length encoding. Since currently the whole structures are in 7075 memory there's not real point in using indefinite length 7076 constructed encoding. However if OpenSSL is compiled with 7077 the flag PKCS7_INDEFINITE_ENCODING the old form is used. 7078 [Steve Henson] 7079 7080 *) Added BIO_vprintf() and BIO_vsnprintf(). 7081 [Richard Levitte] 7082 7083 *) Added more prefixes to parse for in the the strings written 7084 through a logging bio, to cover all the levels that are available 7085 through syslog. The prefixes are now: 7086 7087 PANIC, EMERG, EMR => LOG_EMERG 7088 ALERT, ALR => LOG_ALERT 7089 CRIT, CRI => LOG_CRIT 7090 ERROR, ERR => LOG_ERR 7091 WARNING, WARN, WAR => LOG_WARNING 7092 NOTICE, NOTE, NOT => LOG_NOTICE 7093 INFO, INF => LOG_INFO 7094 DEBUG, DBG => LOG_DEBUG 7095 7096 and as before, if none of those prefixes are present at the 7097 beginning of the string, LOG_ERR is chosen. 7098 7099 On Win32, the LOG_* levels are mapped according to this: 7100 7101 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE 7102 LOG_WARNING => EVENTLOG_WARNING_TYPE 7103 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE 7104 7105 [Richard Levitte] 7106 7107 *) Made it possible to reconfigure with just the configuration 7108 argument "reconf" or "reconfigure". The command line arguments 7109 are stored in Makefile.ssl in the variable CONFIGURE_ARGS, 7110 and are retrieved from there when reconfiguring. 7111 [Richard Levitte] 7112 7113 *) MD4 implemented. 7114 [Assar Westerlund <assar@sics.se>, Richard Levitte] 7115 7116 *) Add the arguments -CAfile and -CApath to the pkcs12 utility. 7117 [Richard Levitte] 7118 7119 *) The obj_dat.pl script was messing up the sorting of object 7120 names. The reason was that it compared the quoted version 7121 of strings as a result "OCSP" > "OCSP Signing" because 7122 " > SPACE. Changed script to store unquoted versions of 7123 names and add quotes on output. It was also omitting some 7124 names from the lookup table if they were given a default 7125 value (that is if SN is missing it is given the same 7126 value as LN and vice versa), these are now added on the 7127 grounds that if an object has a name we should be able to 7128 look it up. Finally added warning output when duplicate 7129 short or long names are found. 7130 [Steve Henson] 7131 7132 *) Changes needed for Tandem NSK. 7133 [Scott Uroff <scott@xypro.com>] 7134 7135 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in 7136 RSA_padding_check_SSLv23(), special padding was never detected 7137 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol 7138 version rollback attacks was not effective. 7139 7140 In s23_clnt.c, don't use special rollback-attack detection padding 7141 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the 7142 client; similarly, in s23_srvr.c, don't do the rollback check if 7143 SSL 2.0 is the only protocol enabled in the server. 7144 [Bodo Moeller] 7145 7146 *) Make it possible to get hexdumps of unprintable data with 'openssl 7147 asn1parse'. By implication, the functions ASN1_parse_dump() and 7148 BIO_dump_indent() are added. 7149 [Richard Levitte] 7150 7151 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex() 7152 these print out strings and name structures based on various 7153 flags including RFC2253 support and proper handling of 7154 multibyte characters. Added options to the 'x509' utility 7155 to allow the various flags to be set. 7156 [Steve Henson] 7157 7158 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME. 7159 Also change the functions X509_cmp_current_time() and 7160 X509_gmtime_adj() work with an ASN1_TIME structure, 7161 this will enable certificates using GeneralizedTime in validity 7162 dates to be checked. 7163 [Steve Henson] 7164 7165 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid 7166 negative public key encodings) on by default, 7167 NO_NEG_PUBKEY_BUG can be set to disable it. 7168 [Steve Henson] 7169 7170 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT 7171 content octets. An i2c_ASN1_OBJECT is unnecessary because 7172 the encoding can be trivially obtained from the structure. 7173 [Steve Henson] 7174 7175 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock), 7176 not read locks (CRYPTO_r_[un]lock). 7177 [Bodo Moeller] 7178 7179 *) A first attempt at creating official support for shared 7180 libraries through configuration. I've kept it so the 7181 default is static libraries only, and the OpenSSL programs 7182 are always statically linked for now, but there are 7183 preparations for dynamic linking in place. 7184 This has been tested on Linux and Tru64. 7185 [Richard Levitte] 7186 7187 *) Randomness polling function for Win9x, as described in: 7188 Peter Gutmann, Software Generation of Practically Strong 7189 Random Numbers. 7190 [Ulf M�ller] 7191 7192 *) Fix so PRNG is seeded in req if using an already existing 7193 DSA key. 7194 [Steve Henson] 7195 7196 *) New options to smime application. -inform and -outform 7197 allow alternative formats for the S/MIME message including 7198 PEM and DER. The -content option allows the content to be 7199 specified separately. This should allow things like Netscape 7200 form signing output easier to verify. 7201 [Steve Henson] 7202 7203 *) Fix the ASN1 encoding of tags using the 'long form'. 7204 [Steve Henson] 7205 7206 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT 7207 STRING types. These convert content octets to and from the 7208 underlying type. The actual tag and length octets are 7209 already assumed to have been read in and checked. These 7210 are needed because all other string types have virtually 7211 identical handling apart from the tag. By having versions 7212 of the ASN1 functions that just operate on content octets 7213 IMPLICIT tagging can be handled properly. It also allows 7214 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED 7215 and ASN1_INTEGER are identical apart from the tag. 7216 [Steve Henson] 7217 7218 *) Change the handling of OID objects as follows: 7219 7220 - New object identifiers are inserted in objects.txt, following 7221 the syntax given in objects.README. 7222 - objects.pl is used to process obj_mac.num and create a new 7223 obj_mac.h. 7224 - obj_dat.pl is used to create a new obj_dat.h, using the data in 7225 obj_mac.h. 7226 7227 This is currently kind of a hack, and the perl code in objects.pl 7228 isn't very elegant, but it works as I intended. The simplest way 7229 to check that it worked correctly is to look in obj_dat.h and 7230 check the array nid_objs and make sure the objects haven't moved 7231 around (this is important!). Additions are OK, as well as 7232 consistent name changes. 7233 [Richard Levitte] 7234 7235 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1'). 7236 [Bodo Moeller] 7237 7238 *) Addition of the command line parameter '-rand file' to 'openssl req'. 7239 The given file adds to whatever has already been seeded into the 7240 random pool through the RANDFILE configuration file option or 7241 environment variable, or the default random state file. 7242 [Richard Levitte] 7243 7244 *) mkstack.pl now sorts each macro group into lexical order. 7245 Previously the output order depended on the order the files 7246 appeared in the directory, resulting in needless rewriting 7247 of safestack.h . 7248 [Steve Henson] 7249 7250 *) Patches to make OpenSSL compile under Win32 again. Mostly 7251 work arounds for the VC++ problem that it treats func() as 7252 func(void). Also stripped out the parts of mkdef.pl that 7253 added extra typesafe functions: these no longer exist. 7254 [Steve Henson] 7255 7256 *) Reorganisation of the stack code. The macros are now all 7257 collected in safestack.h . Each macro is defined in terms of 7258 a "stack macro" of the form SKM_<name>(type, a, b). The 7259 DEBUG_SAFESTACK is now handled in terms of function casts, 7260 this has the advantage of retaining type safety without the 7261 use of additional functions. If DEBUG_SAFESTACK is not defined 7262 then the non typesafe macros are used instead. Also modified the 7263 mkstack.pl script to handle the new form. Needs testing to see 7264 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK 7265 the default if no major problems. Similar behaviour for ASN1_SET_OF 7266 and PKCS12_STACK_OF. 7267 [Steve Henson] 7268 7269 *) When some versions of IIS use the 'NET' form of private key the 7270 key derivation algorithm is different. Normally MD5(password) is 7271 used as a 128 bit RC4 key. In the modified case 7272 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some 7273 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same 7274 as the old Netscape_RSA functions except they have an additional 7275 'sgckey' parameter which uses the modified algorithm. Also added 7276 an -sgckey command line option to the rsa utility. Thanks to 7277 Adrian Peck <bertie@ncipher.com> for posting details of the modified 7278 algorithm to openssl-dev. 7279 [Steve Henson] 7280 7281 *) The evp_local.h macros were using 'c.##kname' which resulted in 7282 invalid expansion on some systems (SCO 5.0.5 for example). 7283 Corrected to 'c.kname'. 7284 [Phillip Porch <root@theporch.com>] 7285 7286 *) New X509_get1_email() and X509_REQ_get1_email() functions that return 7287 a STACK of email addresses from a certificate or request, these look 7288 in the subject name and the subject alternative name extensions and 7289 omit any duplicate addresses. 7290 [Steve Henson] 7291 7292 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows. 7293 This makes DSA verification about 2 % faster. 7294 [Bodo Moeller] 7295 7296 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5 7297 (meaning that now 2^5 values will be precomputed, which is only 4 KB 7298 plus overhead for 1024 bit moduli). 7299 This makes exponentiations about 0.5 % faster for 1024 bit 7300 exponents (as measured by "openssl speed rsa2048"). 7301 [Bodo Moeller] 7302 7303 *) Rename memory handling macros to avoid conflicts with other 7304 software: 7305 Malloc => OPENSSL_malloc 7306 Malloc_locked => OPENSSL_malloc_locked 7307 Realloc => OPENSSL_realloc 7308 Free => OPENSSL_free 7309 [Richard Levitte] 7310 7311 *) New function BN_mod_exp_mont_word for small bases (roughly 15% 7312 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange). 7313 [Bodo Moeller] 7314 7315 *) CygWin32 support. 7316 [John Jarvie <jjarvie@newsguy.com>] 7317 7318 *) The type-safe stack code has been rejigged. It is now only compiled 7319 in when OpenSSL is configured with the DEBUG_SAFESTACK option and 7320 by default all type-specific stack functions are "#define"d back to 7321 standard stack functions. This results in more streamlined output 7322 but retains the type-safety checking possibilities of the original 7323 approach. 7324 [Geoff Thorpe] 7325 7326 *) The STACK code has been cleaned up, and certain type declarations 7327 that didn't make a lot of sense have been brought in line. This has 7328 also involved a cleanup of sorts in safestack.h to more correctly 7329 map type-safe stack functions onto their plain stack counterparts. 7330 This work has also resulted in a variety of "const"ifications of 7331 lots of the code, especially "_cmp" operations which should normally 7332 be prototyped with "const" parameters anyway. 7333 [Geoff Thorpe] 7334 7335 *) When generating bytes for the first time in md_rand.c, 'stir the pool' 7336 by seeding with STATE_SIZE dummy bytes (with zero entropy count). 7337 (The PRNG state consists of two parts, the large pool 'state' and 'md', 7338 where all of 'md' is used each time the PRNG is used, but 'state' 7339 is used only indexed by a cyclic counter. As entropy may not be 7340 well distributed from the beginning, 'md' is important as a 7341 chaining variable. However, the output function chains only half 7342 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains 7343 all of 'md', and seeding with STATE_SIZE dummy bytes will result 7344 in all of 'state' being rewritten, with the new values depending 7345 on virtually all of 'md'. This overcomes the 80 bit limitation.) 7346 [Bodo Moeller] 7347 7348 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when 7349 the handshake is continued after ssl_verify_cert_chain(); 7350 otherwise, if SSL_VERIFY_NONE is set, remaining error codes 7351 can lead to 'unexplainable' connection aborts later. 7352 [Bodo Moeller; problem tracked down by Lutz Jaenicke] 7353 7354 *) Major EVP API cipher revision. 7355 Add hooks for extra EVP features. This allows various cipher 7356 parameters to be set in the EVP interface. Support added for variable 7357 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and 7358 setting of RC2 and RC5 parameters. 7359 7360 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length 7361 ciphers. 7362 7363 Remove lots of duplicated code from the EVP library. For example *every* 7364 cipher init() function handles the 'iv' in the same way according to the 7365 cipher mode. They also all do nothing if the 'key' parameter is NULL and 7366 for CFB and OFB modes they zero ctx->num. 7367 7368 New functionality allows removal of S/MIME code RC2 hack. 7369 7370 Most of the routines have the same form and so can be declared in terms 7371 of macros. 7372 7373 By shifting this to the top level EVP_CipherInit() it can be removed from 7374 all individual ciphers. If the cipher wants to handle IVs or keys 7375 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT 7376 flags. 7377 7378 Change lots of functions like EVP_EncryptUpdate() to now return a 7379 value: although software versions of the algorithms cannot fail 7380 any installed hardware versions can. 7381 [Steve Henson] 7382 7383 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if 7384 this option is set, tolerate broken clients that send the negotiated 7385 protocol version number instead of the requested protocol version 7386 number. 7387 [Bodo Moeller] 7388 7389 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag; 7390 i.e. non-zero for export ciphersuites, zero otherwise. 7391 Previous versions had this flag inverted, inconsistent with 7392 rsa_tmp_cb (..._TMP_RSA_CB). 7393 [Bodo Moeller; problem reported by Amit Chopra] 7394 7395 *) Add missing DSA library text string. Work around for some IIS 7396 key files with invalid SEQUENCE encoding. 7397 [Steve Henson] 7398 7399 *) Add a document (doc/standards.txt) that list all kinds of standards 7400 and so on that are implemented in OpenSSL. 7401 [Richard Levitte] 7402 7403 *) Enhance c_rehash script. Old version would mishandle certificates 7404 with the same subject name hash and wouldn't handle CRLs at all. 7405 Added -fingerprint option to crl utility, to support new c_rehash 7406 features. 7407 [Steve Henson] 7408 7409 *) Eliminate non-ANSI declarations in crypto.h and stack.h. 7410 [Ulf M�ller] 7411 7412 *) Fix for SSL server purpose checking. Server checking was 7413 rejecting certificates which had extended key usage present 7414 but no ssl client purpose. 7415 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>] 7416 7417 *) Make PKCS#12 code work with no password. The PKCS#12 spec 7418 is a little unclear about how a blank password is handled. 7419 Since the password in encoded as a BMPString with terminating 7420 double NULL a zero length password would end up as just the 7421 double NULL. However no password at all is different and is 7422 handled differently in the PKCS#12 key generation code. NS 7423 treats a blank password as zero length. MSIE treats it as no 7424 password on export: but it will try both on import. We now do 7425 the same: PKCS12_parse() tries zero length and no password if 7426 the password is set to "" or NULL (NULL is now a valid password: 7427 it wasn't before) as does the pkcs12 application. 7428 [Steve Henson] 7429 7430 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use 7431 perror when PEM_read_bio_X509_REQ fails, the error message must 7432 be obtained from the error queue. 7433 [Bodo Moeller] 7434 7435 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing 7436 it in ERR_remove_state if appropriate, and change ERR_get_state 7437 accordingly to avoid race conditions (this is necessary because 7438 thread_hash is no longer constant once set). 7439 [Bodo Moeller] 7440 7441 *) Bugfix for linux-elf makefile.one. 7442 [Ulf M�ller] 7443 7444 *) RSA_get_default_method() will now cause a default 7445 RSA_METHOD to be chosen if one doesn't exist already. 7446 Previously this was only set during a call to RSA_new() 7447 or RSA_new_method(NULL) meaning it was possible for 7448 RSA_get_default_method() to return NULL. 7449 [Geoff Thorpe] 7450 7451 *) Added native name translation to the existing DSO code 7452 that will convert (if the flag to do so is set) filenames 7453 that are sufficiently small and have no path information 7454 into a canonical native form. Eg. "blah" converted to 7455 "libblah.so" or "blah.dll" etc. 7456 [Geoff Thorpe] 7457 7458 *) New function ERR_error_string_n(e, buf, len) which is like 7459 ERR_error_string(e, buf), but writes at most 'len' bytes 7460 including the 0 terminator. For ERR_error_string_n, 'buf' 7461 may not be NULL. 7462 [Damien Miller <djm@mindrot.org>, Bodo Moeller] 7463 7464 *) CONF library reworked to become more general. A new CONF 7465 configuration file reader "class" is implemented as well as a 7466 new functions (NCONF_*, for "New CONF") to handle it. The now 7467 old CONF_* functions are still there, but are reimplemented to 7468 work in terms of the new functions. Also, a set of functions 7469 to handle the internal storage of the configuration data is 7470 provided to make it easier to write new configuration file 7471 reader "classes" (I can definitely see something reading a 7472 configuration file in XML format, for example), called _CONF_*, 7473 or "the configuration storage API"... 7474 7475 The new configuration file reading functions are: 7476 7477 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio, 7478 NCONF_get_section, NCONF_get_string, NCONF_get_numbre 7479 7480 NCONF_default, NCONF_WIN32 7481 7482 NCONF_dump_fp, NCONF_dump_bio 7483 7484 NCONF_default and NCONF_WIN32 are method (or "class") choosers, 7485 NCONF_new creates a new CONF object. This works in the same way 7486 as other interfaces in OpenSSL, like the BIO interface. 7487 NCONF_dump_* dump the internal storage of the configuration file, 7488 which is useful for debugging. All other functions take the same 7489 arguments as the old CONF_* functions wth the exception of the 7490 first that must be a `CONF *' instead of a `LHASH *'. 7491 7492 To make it easer to use the new classes with the old CONF_* functions, 7493 the function CONF_set_default_method is provided. 7494 [Richard Levitte] 7495 7496 *) Add '-tls1' option to 'openssl ciphers', which was already 7497 mentioned in the documentation but had not been implemented. 7498 (This option is not yet really useful because even the additional 7499 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.) 7500 [Bodo Moeller] 7501 7502 *) Initial DSO code added into libcrypto for letting OpenSSL (and 7503 OpenSSL-based applications) load shared libraries and bind to 7504 them in a portable way. 7505 [Geoff Thorpe, with contributions from Richard Levitte] 7506 7507 Changes between 0.9.5 and 0.9.5a [1 Apr 2000] 7508 7509 *) Make sure _lrotl and _lrotr are only used with MSVC. 7510 7511 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status 7512 (the default implementation of RAND_status). 7513 7514 *) Rename openssl x509 option '-crlext', which was added in 0.9.5, 7515 to '-clrext' (= clear extensions), as intended and documented. 7516 [Bodo Moeller; inconsistency pointed out by Michael Attili 7517 <attili@amaxo.com>] 7518 7519 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length 7520 was larger than the MD block size. 7521 [Steve Henson, pointed out by Yost William <YostW@tce.com>] 7522 7523 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument 7524 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set() 7525 using the passed key: if the passed key was a private key the result 7526 of X509_print(), for example, would be to print out all the private key 7527 components. 7528 [Steve Henson] 7529 7530 *) des_quad_cksum() byte order bug fix. 7531 [Ulf M�ller, using the problem description in krb4-0.9.7, where 7532 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>] 7533 7534 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly 7535 discouraged. 7536 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>] 7537 7538 *) For easily testing in shell scripts whether some command 7539 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX' 7540 returns with exit code 0 iff no command of the given name is available. 7541 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases, 7542 the output goes to stdout and nothing is printed to stderr. 7543 Additional arguments are always ignored. 7544 7545 Since for each cipher there is a command of the same name, 7546 the 'no-cipher' compilation switches can be tested this way. 7547 7548 ('openssl no-XXX' is not able to detect pseudo-commands such 7549 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.) 7550 [Bodo Moeller] 7551 7552 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration. 7553 [Bodo Moeller] 7554 7555 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE 7556 is set; it will be thrown away anyway because each handshake creates 7557 its own key. 7558 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition 7559 to parameters -- in previous versions (since OpenSSL 0.9.3) the 7560 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining 7561 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro. 7562 [Bodo Moeller] 7563 7564 *) New s_client option -ign_eof: EOF at stdin is ignored, and 7565 'Q' and 'R' lose their special meanings (quit/renegotiate). 7566 This is part of what -quiet does; unlike -quiet, -ign_eof 7567 does not suppress any output. 7568 [Richard Levitte] 7569 7570 *) Add compatibility options to the purpose and trust code. The 7571 purpose X509_PURPOSE_ANY is "any purpose" which automatically 7572 accepts a certificate or CA, this was the previous behaviour, 7573 with all the associated security issues. 7574 7575 X509_TRUST_COMPAT is the old trust behaviour: only and 7576 automatically trust self signed roots in certificate store. A 7577 new trust setting X509_TRUST_DEFAULT is used to specify that 7578 a purpose has no associated trust setting and it should instead 7579 use the value in the default purpose. 7580 [Steve Henson] 7581 7582 *) Fix the PKCS#8 DSA private key code so it decodes keys again 7583 and fix a memory leak. 7584 [Steve Henson] 7585 7586 *) In util/mkerr.pl (which implements 'make errors'), preserve 7587 reason strings from the previous version of the .c file, as 7588 the default to have only downcase letters (and digits) in 7589 automatically generated reasons codes is not always appropriate. 7590 [Bodo Moeller] 7591 7592 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table 7593 using strerror. Previously, ERR_reason_error_string() returned 7594 library names as reason strings for SYSerr; but SYSerr is a special 7595 case where small numbers are errno values, not library numbers. 7596 [Bodo Moeller] 7597 7598 *) Add '-dsaparam' option to 'openssl dhparam' application. This 7599 converts DSA parameters into DH parameters. (When creating parameters, 7600 DSA_generate_parameters is used.) 7601 [Bodo Moeller] 7602 7603 *) Include 'length' (recommended exponent length) in C code generated 7604 by 'openssl dhparam -C'. 7605 [Bodo Moeller] 7606 7607 *) The second argument to set_label in perlasm was already being used 7608 so couldn't be used as a "file scope" flag. Moved to third argument 7609 which was free. 7610 [Steve Henson] 7611 7612 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes 7613 instead of RAND_bytes for encryption IVs and salts. 7614 [Bodo Moeller] 7615 7616 *) Include RAND_status() into RAND_METHOD instead of implementing 7617 it only for md_rand.c Otherwise replacing the PRNG by calling 7618 RAND_set_rand_method would be impossible. 7619 [Bodo Moeller] 7620 7621 *) Don't let DSA_generate_key() enter an infinite loop if the random 7622 number generation fails. 7623 [Bodo Moeller] 7624 7625 *) New 'rand' application for creating pseudo-random output. 7626 [Bodo Moeller] 7627 7628 *) Added configuration support for Linux/IA64 7629 [Rolf Haberrecker <rolf@suse.de>] 7630 7631 *) Assembler module support for Mingw32. 7632 [Ulf M�ller] 7633 7634 *) Shared library support for HPUX (in shlib/). 7635 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous] 7636 7637 *) Shared library support for Solaris gcc. 7638 [Lutz Behnke <behnke@trustcenter.de>] 7639 7640 Changes between 0.9.4 and 0.9.5 [28 Feb 2000] 7641 7642 *) PKCS7_encrypt() was adding text MIME headers twice because they 7643 were added manually and by SMIME_crlf_copy(). 7644 [Steve Henson] 7645 7646 *) In bntest.c don't call BN_rand with zero bits argument. 7647 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>] 7648 7649 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n] 7650 case was implemented. This caused BN_div_recp() to fail occasionally. 7651 [Ulf M�ller] 7652 7653 *) Add an optional second argument to the set_label() in the perl 7654 assembly language builder. If this argument exists and is set 7655 to 1 it signals that the assembler should use a symbol whose 7656 scope is the entire file, not just the current function. This 7657 is needed with MASM which uses the format label:: for this scope. 7658 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>] 7659 7660 *) Change the ASN1 types so they are typedefs by default. Before 7661 almost all types were #define'd to ASN1_STRING which was causing 7662 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING) 7663 for example. 7664 [Steve Henson] 7665 7666 *) Change names of new functions to the new get1/get0 naming 7667 convention: After 'get1', the caller owns a reference count 7668 and has to call ..._free; 'get0' returns a pointer to some 7669 data structure without incrementing reference counters. 7670 (Some of the existing 'get' functions increment a reference 7671 counter, some don't.) 7672 Similarly, 'set1' and 'add1' functions increase reference 7673 counters or duplicate objects. 7674 [Steve Henson] 7675 7676 *) Allow for the possibility of temp RSA key generation failure: 7677 the code used to assume it always worked and crashed on failure. 7678 [Steve Henson] 7679 7680 *) Fix potential buffer overrun problem in BIO_printf(). 7681 [Ulf M�ller, using public domain code by Patrick Powell; problem 7682 pointed out by David Sacerdote <das33@cornell.edu>] 7683 7684 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions 7685 RAND_egd() and RAND_status(). In the command line application, 7686 the EGD socket can be specified like a seed file using RANDFILE 7687 or -rand. 7688 [Ulf M�ller] 7689 7690 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures. 7691 Some CAs (e.g. Verisign) distribute certificates in this form. 7692 [Steve Henson] 7693 7694 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher 7695 list to exclude them. This means that no special compilation option 7696 is needed to use anonymous DH: it just needs to be included in the 7697 cipher list. 7698 [Steve Henson] 7699 7700 *) Change the EVP_MD_CTX_type macro so its meaning consistent with 7701 EVP_MD_type. The old functionality is available in a new macro called 7702 EVP_MD_md(). Change code that uses it and update docs. 7703 [Steve Henson] 7704 7705 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions 7706 where the 'void *' argument is replaced by a function pointer argument. 7707 Previously 'void *' was abused to point to functions, which works on 7708 many platforms, but is not correct. As these functions are usually 7709 called by macros defined in OpenSSL header files, most source code 7710 should work without changes. 7711 [Richard Levitte] 7712 7713 *) <openssl/opensslconf.h> (which is created by Configure) now contains 7714 sections with information on -D... compiler switches used for 7715 compiling the library so that applications can see them. To enable 7716 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES 7717 must be defined. E.g., 7718 #define OPENSSL_ALGORITHM_DEFINES 7719 #include <openssl/opensslconf.h> 7720 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc. 7721 [Richard Levitte, Ulf and Bodo M�ller] 7722 7723 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS 7724 record layer. 7725 [Bodo Moeller] 7726 7727 *) Change the 'other' type in certificate aux info to a STACK_OF 7728 X509_ALGOR. Although not an AlgorithmIdentifier as such it has 7729 the required ASN1 format: arbitrary types determined by an OID. 7730 [Steve Henson] 7731 7732 *) Add some PEM_write_X509_REQ_NEW() functions and a command line 7733 argument to 'req'. This is not because the function is newer or 7734 better than others it just uses the work 'NEW' in the certificate 7735 request header lines. Some software needs this. 7736 [Steve Henson] 7737 7738 *) Reorganise password command line arguments: now passwords can be 7739 obtained from various sources. Delete the PEM_cb function and make 7740 it the default behaviour: i.e. if the callback is NULL and the 7741 usrdata argument is not NULL interpret it as a null terminated pass 7742 phrase. If usrdata and the callback are NULL then the pass phrase 7743 is prompted for as usual. 7744 [Steve Henson] 7745 7746 *) Add support for the Compaq Atalla crypto accelerator. If it is installed, 7747 the support is automatically enabled. The resulting binaries will 7748 autodetect the card and use it if present. 7749 [Ben Laurie and Compaq Inc.] 7750 7751 *) Work around for Netscape hang bug. This sends certificate request 7752 and server done in one record. Since this is perfectly legal in the 7753 SSL/TLS protocol it isn't a "bug" option and is on by default. See 7754 the bugs/SSLv3 entry for more info. 7755 [Steve Henson] 7756 7757 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround. 7758 [Andy Polyakov] 7759 7760 *) Add -rand argument to smime and pkcs12 applications and read/write 7761 of seed file. 7762 [Steve Henson] 7763 7764 *) New 'passwd' tool for crypt(3) and apr1 password hashes. 7765 [Bodo Moeller] 7766 7767 *) Add command line password options to the remaining applications. 7768 [Steve Henson] 7769 7770 *) Bug fix for BN_div_recp() for numerators with an even number of 7771 bits. 7772 [Ulf M�ller] 7773 7774 *) More tests in bntest.c, and changed test_bn output. 7775 [Ulf M�ller] 7776 7777 *) ./config recognizes MacOS X now. 7778 [Andy Polyakov] 7779 7780 *) Bug fix for BN_div() when the first words of num and divsor are 7781 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0). 7782 [Ulf M�ller] 7783 7784 *) Add support for various broken PKCS#8 formats, and command line 7785 options to produce them. 7786 [Steve Henson] 7787 7788 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to 7789 get temporary BIGNUMs from a BN_CTX. 7790 [Ulf M�ller] 7791 7792 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont() 7793 for p == 0. 7794 [Ulf M�ller] 7795 7796 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and 7797 include a #define from the old name to the new. The original intent 7798 was that statically linked binaries could for example just call 7799 SSLeay_add_all_ciphers() to just add ciphers to the table and not 7800 link with digests. This never worked becayse SSLeay_add_all_digests() 7801 and SSLeay_add_all_ciphers() were in the same source file so calling 7802 one would link with the other. They are now in separate source files. 7803 [Steve Henson] 7804 7805 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'. 7806 [Steve Henson] 7807 7808 *) Use a less unusual form of the Miller-Rabin primality test (it used 7809 a binary algorithm for exponentiation integrated into the Miller-Rabin 7810 loop, our standard modexp algorithms are faster). 7811 [Bodo Moeller] 7812 7813 *) Support for the EBCDIC character set completed. 7814 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>] 7815 7816 *) Source code cleanups: use const where appropriate, eliminate casts, 7817 use void * instead of char * in lhash. 7818 [Ulf M�ller] 7819 7820 *) Bugfix: ssl3_send_server_key_exchange was not restartable 7821 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of 7822 this the server could overwrite ephemeral keys that the client 7823 has already seen). 7824 [Bodo Moeller] 7825 7826 *) Turn DSA_is_prime into a macro that calls BN_is_prime, 7827 using 50 iterations of the Rabin-Miller test. 7828 7829 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50 7830 iterations of the Rabin-Miller test as required by the appendix 7831 to FIPS PUB 186[-1]) instead of DSA_is_prime. 7832 As BN_is_prime_fasttest includes trial division, DSA parameter 7833 generation becomes much faster. 7834 7835 This implies a change for the callback functions in DSA_is_prime 7836 and DSA_generate_parameters: The callback function is called once 7837 for each positive witness in the Rabin-Miller test, not just 7838 occasionally in the inner loop; and the parameters to the 7839 callback function now provide an iteration count for the outer 7840 loop rather than for the current invocation of the inner loop. 7841 DSA_generate_parameters additionally can call the callback 7842 function with an 'iteration count' of -1, meaning that a 7843 candidate has passed the trial division test (when q is generated 7844 from an application-provided seed, trial division is skipped). 7845 [Bodo Moeller] 7846 7847 *) New function BN_is_prime_fasttest that optionally does trial 7848 division before starting the Rabin-Miller test and has 7849 an additional BN_CTX * argument (whereas BN_is_prime always 7850 has to allocate at least one BN_CTX). 7851 'callback(1, -1, cb_arg)' is called when a number has passed the 7852 trial division stage. 7853 [Bodo Moeller] 7854 7855 *) Fix for bug in CRL encoding. The validity dates weren't being handled 7856 as ASN1_TIME. 7857 [Steve Henson] 7858 7859 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file. 7860 [Steve Henson] 7861 7862 *) New function BN_pseudo_rand(). 7863 [Ulf M�ller] 7864 7865 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable) 7866 bignum version of BN_from_montgomery() with the working code from 7867 SSLeay 0.9.0 (the word based version is faster anyway), and clean up 7868 the comments. 7869 [Ulf M�ller] 7870 7871 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that 7872 made it impossible to use the same SSL_SESSION data structure in 7873 SSL2 clients in multiple threads. 7874 [Bodo Moeller] 7875 7876 *) The return value of RAND_load_file() no longer counts bytes obtained 7877 by stat(). RAND_load_file(..., -1) is new and uses the complete file 7878 to seed the PRNG (previously an explicit byte count was required). 7879 [Ulf M�ller, Bodo M�ller] 7880 7881 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes 7882 used (char *) instead of (void *) and had casts all over the place. 7883 [Steve Henson] 7884 7885 *) Make BN_generate_prime() return NULL on error if ret!=NULL. 7886 [Ulf M�ller] 7887 7888 *) Retain source code compatibility for BN_prime_checks macro: 7889 BN_is_prime(..., BN_prime_checks, ...) now uses 7890 BN_prime_checks_for_size to determine the appropriate number of 7891 Rabin-Miller iterations. 7892 [Ulf M�ller] 7893 7894 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to 7895 DH_CHECK_P_NOT_SAFE_PRIME. 7896 (Check if this is true? OpenPGP calls them "strong".) 7897 [Ulf M�ller] 7898 7899 *) Merge the functionality of "dh" and "gendh" programs into a new program 7900 "dhparam". The old programs are retained for now but will handle DH keys 7901 (instead of parameters) in future. 7902 [Steve Henson] 7903 7904 *) Make the ciphers, s_server and s_client programs check the return values 7905 when a new cipher list is set. 7906 [Steve Henson] 7907 7908 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit 7909 ciphers. Before when the 56bit ciphers were enabled the sorting was 7910 wrong. 7911 7912 The syntax for the cipher sorting has been extended to support sorting by 7913 cipher-strength (using the strength_bits hard coded in the tables). 7914 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod). 7915 7916 Fix a bug in the cipher-command parser: when supplying a cipher command 7917 string with an "undefined" symbol (neither command nor alphanumeric 7918 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now 7919 an error is flagged. 7920 7921 Due to the strength-sorting extension, the code of the 7922 ssl_create_cipher_list() function was completely rearranged. I hope that 7923 the readability was also increased :-) 7924 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>] 7925 7926 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1 7927 for the first serial number and places 2 in the serial number file. This 7928 avoids problems when the root CA is created with serial number zero and 7929 the first user certificate has the same issuer name and serial number 7930 as the root CA. 7931 [Steve Henson] 7932 7933 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses 7934 the new code. Add documentation for this stuff. 7935 [Steve Henson] 7936 7937 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from 7938 X509_*() to X509at_*() on the grounds that they don't handle X509 7939 structures and behave in an analagous way to the X509v3 functions: 7940 they shouldn't be called directly but wrapper functions should be used 7941 instead. 7942 7943 So we also now have some wrapper functions that call the X509at functions 7944 when passed certificate requests. (TO DO: similar things can be done with 7945 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other 7946 things. Some of these need some d2i or i2d and print functionality 7947 because they handle more complex structures.) 7948 [Steve Henson] 7949 7950 *) Add missing #ifndefs that caused missing symbols when building libssl 7951 as a shared library without RSA. Use #ifndef NO_SSL2 instead of 7952 NO_RSA in ssl/s2*.c. 7953 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf M�ller] 7954 7955 *) Precautions against using the PRNG uninitialized: RAND_bytes() now 7956 has a return value which indicates the quality of the random data 7957 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's 7958 error queue. New function RAND_pseudo_bytes() generates output that is 7959 guaranteed to be unique but not unpredictable. RAND_add is like 7960 RAND_seed, but takes an extra argument for an entropy estimate 7961 (RAND_seed always assumes full entropy). 7962 [Ulf M�ller] 7963 7964 *) Do more iterations of Rabin-Miller probable prime test (specifically, 7965 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes 7966 instead of only 2 for all lengths; see BN_prime_checks_for_size definition 7967 in crypto/bn/bn_prime.c for the complete table). This guarantees a 7968 false-positive rate of at most 2^-80 for random input. 7969 [Bodo Moeller] 7970 7971 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs. 7972 [Bodo Moeller] 7973 7974 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain 7975 in the 0.9.5 release), this returns the chain 7976 from an X509_CTX structure with a dup of the stack and all 7977 the X509 reference counts upped: so the stack will exist 7978 after X509_CTX_cleanup() has been called. Modify pkcs12.c 7979 to use this. 7980 7981 Also make SSL_SESSION_print() print out the verify return 7982 code. 7983 [Steve Henson] 7984 7985 *) Add manpage for the pkcs12 command. Also change the default 7986 behaviour so MAC iteration counts are used unless the new 7987 -nomaciter option is used. This improves file security and 7988 only older versions of MSIE (4.0 for example) need it. 7989 [Steve Henson] 7990 7991 *) Honor the no-xxx Configure options when creating .DEF files. 7992 [Ulf M�ller] 7993 7994 *) Add PKCS#10 attributes to field table: challengePassword, 7995 unstructuredName and unstructuredAddress. These are taken from 7996 draft PKCS#9 v2.0 but are compatible with v1.2 provided no 7997 international characters are used. 7998 7999 More changes to X509_ATTRIBUTE code: allow the setting of types 8000 based on strings. Remove the 'loc' parameter when adding 8001 attributes because these will be a SET OF encoding which is sorted 8002 in ASN1 order. 8003 [Steve Henson] 8004 8005 *) Initial changes to the 'req' utility to allow request generation 8006 automation. This will allow an application to just generate a template 8007 file containing all the field values and have req construct the 8008 request. 8009 8010 Initial support for X509_ATTRIBUTE handling. Stacks of these are 8011 used all over the place including certificate requests and PKCS#7 8012 structures. They are currently handled manually where necessary with 8013 some primitive wrappers for PKCS#7. The new functions behave in a 8014 manner analogous to the X509 extension functions: they allow 8015 attributes to be looked up by NID and added. 8016 8017 Later something similar to the X509V3 code would be desirable to 8018 automatically handle the encoding, decoding and printing of the 8019 more complex types. The string types like challengePassword can 8020 be handled by the string table functions. 8021 8022 Also modified the multi byte string table handling. Now there is 8023 a 'global mask' which masks out certain types. The table itself 8024 can use the flag STABLE_NO_MASK to ignore the mask setting: this 8025 is useful when for example there is only one permissible type 8026 (as in countryName) and using the mask might result in no valid 8027 types at all. 8028 [Steve Henson] 8029 8030 *) Clean up 'Finished' handling, and add functions SSL_get_finished and 8031 SSL_get_peer_finished to allow applications to obtain the latest 8032 Finished messages sent to the peer or expected from the peer, 8033 respectively. (SSL_get_peer_finished is usually the Finished message 8034 actually received from the peer, otherwise the protocol will be aborted.) 8035 8036 As the Finished message are message digests of the complete handshake 8037 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can 8038 be used for external authentication procedures when the authentication 8039 provided by SSL/TLS is not desired or is not enough. 8040 [Bodo Moeller] 8041 8042 *) Enhanced support for Alpha Linux is added. Now ./config checks if 8043 the host supports BWX extension and if Compaq C is present on the 8044 $PATH. Just exploiting of the BWX extension results in 20-30% 8045 performance kick for some algorithms, e.g. DES and RC4 to mention 8046 a couple. Compaq C in turn generates ~20% faster code for MD5 and 8047 SHA1. 8048 [Andy Polyakov] 8049 8050 *) Add support for MS "fast SGC". This is arguably a violation of the 8051 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with 8052 weak crypto and after checking the certificate is SGC a second one 8053 with strong crypto. MS SGC stops the first handshake after receiving 8054 the server certificate message and sends a second client hello. Since 8055 a server will typically do all the time consuming operations before 8056 expecting any further messages from the client (server key exchange 8057 is the most expensive) there is little difference between the two. 8058 8059 To get OpenSSL to support MS SGC we have to permit a second client 8060 hello message after we have sent server done. In addition we have to 8061 reset the MAC if we do get this second client hello. 8062 [Steve Henson] 8063 8064 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide 8065 if a DER encoded private key is RSA or DSA traditional format. Changed 8066 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional" 8067 format DER encoded private key. Newer code should use PKCS#8 format which 8068 has the key type encoded in the ASN1 structure. Added DER private key 8069 support to pkcs8 application. 8070 [Steve Henson] 8071 8072 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous 8073 ciphersuites has been selected (as required by the SSL 3/TLS 1 8074 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT 8075 is set, we interpret this as a request to violate the specification 8076 (the worst that can happen is a handshake failure, and 'correct' 8077 behaviour would result in a handshake failure anyway). 8078 [Bodo Moeller] 8079 8080 *) In SSL_CTX_add_session, take into account that there might be multiple 8081 SSL_SESSION structures with the same session ID (e.g. when two threads 8082 concurrently obtain them from an external cache). 8083 The internal cache can handle only one SSL_SESSION with a given ID, 8084 so if there's a conflict, we now throw out the old one to achieve 8085 consistency. 8086 [Bodo Moeller] 8087 8088 *) Add OIDs for idea and blowfish in CBC mode. This will allow both 8089 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to 8090 some routines that use cipher OIDs: some ciphers do not have OIDs 8091 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for 8092 example. 8093 [Steve Henson] 8094 8095 *) Simplify the trust setting structure and code. Now we just have 8096 two sequences of OIDs for trusted and rejected settings. These will 8097 typically have values the same as the extended key usage extension 8098 and any application specific purposes. 8099 8100 The trust checking code now has a default behaviour: it will just 8101 check for an object with the same NID as the passed id. Functions can 8102 be provided to override either the default behaviour or the behaviour 8103 for a given id. SSL client, server and email already have functions 8104 in place for compatibility: they check the NID and also return "trusted" 8105 if the certificate is self signed. 8106 [Steve Henson] 8107 8108 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the 8109 traditional format into an EVP_PKEY structure. 8110 [Steve Henson] 8111 8112 *) Add a password callback function PEM_cb() which either prompts for 8113 a password if usr_data is NULL or otherwise assumes it is a null 8114 terminated password. Allow passwords to be passed on command line 8115 environment or config files in a few more utilities. 8116 [Steve Henson] 8117 8118 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private 8119 keys. Add some short names for PKCS#8 PBE algorithms and allow them 8120 to be specified on the command line for the pkcs8 and pkcs12 utilities. 8121 Update documentation. 8122 [Steve Henson] 8123 8124 *) Support for ASN1 "NULL" type. This could be handled before by using 8125 ASN1_TYPE but there wasn't any function that would try to read a NULL 8126 and produce an error if it couldn't. For compatibility we also have 8127 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and 8128 don't allocate anything because they don't need to. 8129 [Steve Henson] 8130 8131 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS 8132 for details. 8133 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>] 8134 8135 *) Rebuild of the memory allocation routines used by OpenSSL code and 8136 possibly others as well. The purpose is to make an interface that 8137 provide hooks so anyone can build a separate set of allocation and 8138 deallocation routines to be used by OpenSSL, for example memory 8139 pool implementations, or something else, which was previously hard 8140 since Malloc(), Realloc() and Free() were defined as macros having 8141 the values malloc, realloc and free, respectively (except for Win32 8142 compilations). The same is provided for memory debugging code. 8143 OpenSSL already comes with functionality to find memory leaks, but 8144 this gives people a chance to debug other memory problems. 8145 8146 With these changes, a new set of functions and macros have appeared: 8147 8148 CRYPTO_set_mem_debug_functions() [F] 8149 CRYPTO_get_mem_debug_functions() [F] 8150 CRYPTO_dbg_set_options() [F] 8151 CRYPTO_dbg_get_options() [F] 8152 CRYPTO_malloc_debug_init() [M] 8153 8154 The memory debug functions are NULL by default, unless the library 8155 is compiled with CRYPTO_MDEBUG or friends is defined. If someone 8156 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which 8157 gives the standard debugging functions that come with OpenSSL) or 8158 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions 8159 provided by the library user) must be used. When the standard 8160 debugging functions are used, CRYPTO_dbg_set_options can be used to 8161 request additional information: 8162 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting 8163 the CRYPTO_MDEBUG_xxx macro when compiling the library. 8164 8165 Also, things like CRYPTO_set_mem_functions will always give the 8166 expected result (the new set of functions is used for allocation 8167 and deallocation) at all times, regardless of platform and compiler 8168 options. 8169 8170 To finish it up, some functions that were never use in any other 8171 way than through macros have a new API and new semantic: 8172 8173 CRYPTO_dbg_malloc() 8174 CRYPTO_dbg_realloc() 8175 CRYPTO_dbg_free() 8176 8177 All macros of value have retained their old syntax. 8178 [Richard Levitte and Bodo Moeller] 8179 8180 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the 8181 ordering of SMIMECapabilities wasn't in "strength order" and there 8182 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature 8183 algorithm. 8184 [Steve Henson] 8185 8186 *) Some ASN1 types with illegal zero length encoding (INTEGER, 8187 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines. 8188 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson] 8189 8190 *) Merge in my S/MIME library for OpenSSL. This provides a simple 8191 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough 8192 functionality to handle multipart/signed properly) and a utility 8193 called 'smime' to call all this stuff. This is based on code I 8194 originally wrote for Celo who have kindly allowed it to be 8195 included in OpenSSL. 8196 [Steve Henson] 8197 8198 *) Add variants des_set_key_checked and des_set_key_unchecked of 8199 des_set_key (aka des_key_sched). Global variable des_check_key 8200 decides which of these is called by des_set_key; this way 8201 des_check_key behaves as it always did, but applications and 8202 the library itself, which was buggy for des_check_key == 1, 8203 have a cleaner way to pick the version they need. 8204 [Bodo Moeller] 8205 8206 *) New function PKCS12_newpass() which changes the password of a 8207 PKCS12 structure. 8208 [Steve Henson] 8209 8210 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and 8211 dynamic mix. In both cases the ids can be used as an index into the 8212 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add() 8213 functions so they accept a list of the field values and the 8214 application doesn't need to directly manipulate the X509_TRUST 8215 structure. 8216 [Steve Henson] 8217 8218 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't 8219 need initialising. 8220 [Steve Henson] 8221 8222 *) Modify the way the V3 extension code looks up extensions. This now 8223 works in a similar way to the object code: we have some "standard" 8224 extensions in a static table which is searched with OBJ_bsearch() 8225 and the application can add dynamic ones if needed. The file 8226 crypto/x509v3/ext_dat.h now has the info: this file needs to be 8227 updated whenever a new extension is added to the core code and kept 8228 in ext_nid order. There is a simple program 'tabtest.c' which checks 8229 this. New extensions are not added too often so this file can readily 8230 be maintained manually. 8231 8232 There are two big advantages in doing things this way. The extensions 8233 can be looked up immediately and no longer need to be "added" using 8234 X509V3_add_standard_extensions(): this function now does nothing. 8235 [Side note: I get *lots* of email saying the extension code doesn't 8236 work because people forget to call this function] 8237 Also no dynamic allocation is done unless new extensions are added: 8238 so if we don't add custom extensions there is no need to call 8239 X509V3_EXT_cleanup(). 8240 [Steve Henson] 8241 8242 *) Modify enc utility's salting as follows: make salting the default. Add a 8243 magic header, so unsalted files fail gracefully instead of just decrypting 8244 to garbage. This is because not salting is a big security hole, so people 8245 should be discouraged from doing it. 8246 [Ben Laurie] 8247 8248 *) Fixes and enhancements to the 'x509' utility. It allowed a message 8249 digest to be passed on the command line but it only used this 8250 parameter when signing a certificate. Modified so all relevant 8251 operations are affected by the digest parameter including the 8252 -fingerprint and -x509toreq options. Also -x509toreq choked if a 8253 DSA key was used because it didn't fix the digest. 8254 [Steve Henson] 8255 8256 *) Initial certificate chain verify code. Currently tests the untrusted 8257 certificates for consistency with the verify purpose (which is set 8258 when the X509_STORE_CTX structure is set up) and checks the pathlength. 8259 8260 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour: 8261 this is because it will reject chains with invalid extensions whereas 8262 every previous version of OpenSSL and SSLeay made no checks at all. 8263 8264 Trust code: checks the root CA for the relevant trust settings. Trust 8265 settings have an initial value consistent with the verify purpose: e.g. 8266 if the verify purpose is for SSL client use it expects the CA to be 8267 trusted for SSL client use. However the default value can be changed to 8268 permit custom trust settings: one example of this would be to only trust 8269 certificates from a specific "secure" set of CAs. 8270 8271 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions 8272 which should be used for version portability: especially since the 8273 verify structure is likely to change more often now. 8274 8275 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions 8276 to set them. If not set then assume SSL clients will verify SSL servers 8277 and vice versa. 8278 8279 Two new options to the verify program: -untrusted allows a set of 8280 untrusted certificates to be passed in and -purpose which sets the 8281 intended purpose of the certificate. If a purpose is set then the 8282 new chain verify code is used to check extension consistency. 8283 [Steve Henson] 8284 8285 *) Support for the authority information access extension. 8286 [Steve Henson] 8287 8288 *) Modify RSA and DSA PEM read routines to transparently handle 8289 PKCS#8 format private keys. New *_PUBKEY_* functions that handle 8290 public keys in a format compatible with certificate 8291 SubjectPublicKeyInfo structures. Unfortunately there were already 8292 functions called *_PublicKey_* which used various odd formats so 8293 these are retained for compatibility: however the DSA variants were 8294 never in a public release so they have been deleted. Changed dsa/rsa 8295 utilities to handle the new format: note no releases ever handled public 8296 keys so we should be OK. 8297 8298 The primary motivation for this change is to avoid the same fiasco 8299 that dogs private keys: there are several incompatible private key 8300 formats some of which are standard and some OpenSSL specific and 8301 require various evil hacks to allow partial transparent handling and 8302 even then it doesn't work with DER formats. Given the option anything 8303 other than PKCS#8 should be dumped: but the other formats have to 8304 stay in the name of compatibility. 8305 8306 With public keys and the benefit of hindsight one standard format 8307 is used which works with EVP_PKEY, RSA or DSA structures: though 8308 it clearly returns an error if you try to read the wrong kind of key. 8309 8310 Added a -pubkey option to the 'x509' utility to output the public key. 8311 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*() 8312 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add 8313 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*()) 8314 that do the same as the EVP_PKEY_assign_*() except they up the 8315 reference count of the added key (they don't "swallow" the 8316 supplied key). 8317 [Steve Henson] 8318 8319 *) Fixes to crypto/x509/by_file.c the code to read in certificates and 8320 CRLs would fail if the file contained no certificates or no CRLs: 8321 added a new function to read in both types and return the number 8322 read: this means that if none are read it will be an error. The 8323 DER versions of the certificate and CRL reader would always fail 8324 because it isn't possible to mix certificates and CRLs in DER format 8325 without choking one or the other routine. Changed this to just read 8326 a certificate: this is the best we can do. Also modified the code 8327 in apps/verify.c to take notice of return codes: it was previously 8328 attempting to read in certificates from NULL pointers and ignoring 8329 any errors: this is one reason why the cert and CRL reader seemed 8330 to work. It doesn't check return codes from the default certificate 8331 routines: these may well fail if the certificates aren't installed. 8332 [Steve Henson] 8333 8334 *) Code to support otherName option in GeneralName. 8335 [Steve Henson] 8336 8337 *) First update to verify code. Change the verify utility 8338 so it warns if it is passed a self signed certificate: 8339 for consistency with the normal behaviour. X509_verify 8340 has been modified to it will now verify a self signed 8341 certificate if *exactly* the same certificate appears 8342 in the store: it was previously impossible to trust a 8343 single self signed certificate. This means that: 8344 openssl verify ss.pem 8345 now gives a warning about a self signed certificate but 8346 openssl verify -CAfile ss.pem ss.pem 8347 is OK. 8348 [Steve Henson] 8349 8350 *) For servers, store verify_result in SSL_SESSION data structure 8351 (and add it to external session representation). 8352 This is needed when client certificate verifications fails, 8353 but an application-provided verification callback (set by 8354 SSL_CTX_set_cert_verify_callback) allows accepting the session 8355 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK 8356 but returns 1): When the session is reused, we have to set 8357 ssl->verify_result to the appropriate error code to avoid 8358 security holes. 8359 [Bodo Moeller, problem pointed out by Lutz Jaenicke] 8360 8361 *) Fix a bug in the new PKCS#7 code: it didn't consider the 8362 case in PKCS7_dataInit() where the signed PKCS7 structure 8363 didn't contain any existing data because it was being created. 8364 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson] 8365 8366 *) Add a salt to the key derivation routines in enc.c. This 8367 forms the first 8 bytes of the encrypted file. Also add a 8368 -S option to allow a salt to be input on the command line. 8369 [Steve Henson] 8370 8371 *) New function X509_cmp(). Oddly enough there wasn't a function 8372 to compare two certificates. We do this by working out the SHA1 8373 hash and comparing that. X509_cmp() will be needed by the trust 8374 code. 8375 [Steve Henson] 8376 8377 *) SSL_get1_session() is like SSL_get_session(), but increments 8378 the reference count in the SSL_SESSION returned. 8379 [Geoff Thorpe <geoff@eu.c2.net>] 8380 8381 *) Fix for 'req': it was adding a null to request attributes. 8382 Also change the X509_LOOKUP and X509_INFO code to handle 8383 certificate auxiliary information. 8384 [Steve Henson] 8385 8386 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document 8387 the 'enc' command. 8388 [Steve Henson] 8389 8390 *) Add the possibility to add extra information to the memory leak 8391 detecting output, to form tracebacks, showing from where each 8392 allocation was originated: CRYPTO_push_info("constant string") adds 8393 the string plus current file name and line number to a per-thread 8394 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info() 8395 is like calling CYRPTO_pop_info() until the stack is empty. 8396 Also updated memory leak detection code to be multi-thread-safe. 8397 [Richard Levitte] 8398 8399 *) Add options -text and -noout to pkcs7 utility and delete the 8400 encryption options which never did anything. Update docs. 8401 [Steve Henson] 8402 8403 *) Add options to some of the utilities to allow the pass phrase 8404 to be included on either the command line (not recommended on 8405 OSes like Unix) or read from the environment. Update the 8406 manpages and fix a few bugs. 8407 [Steve Henson] 8408 8409 *) Add a few manpages for some of the openssl commands. 8410 [Steve Henson] 8411 8412 *) Fix the -revoke option in ca. It was freeing up memory twice, 8413 leaking and not finding already revoked certificates. 8414 [Steve Henson] 8415 8416 *) Extensive changes to support certificate auxiliary information. 8417 This involves the use of X509_CERT_AUX structure and X509_AUX 8418 functions. An X509_AUX function such as PEM_read_X509_AUX() 8419 can still read in a certificate file in the usual way but it 8420 will also read in any additional "auxiliary information". By 8421 doing things this way a fair degree of compatibility can be 8422 retained: existing certificates can have this information added 8423 using the new 'x509' options. 8424 8425 Current auxiliary information includes an "alias" and some trust 8426 settings. The trust settings will ultimately be used in enhanced 8427 certificate chain verification routines: currently a certificate 8428 can only be trusted if it is self signed and then it is trusted 8429 for all purposes. 8430 [Steve Henson] 8431 8432 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD). 8433 The problem was that one of the replacement routines had not been working 8434 since SSLeay releases. For now the offending routine has been replaced 8435 with non-optimised assembler. Even so, this now gives around 95% 8436 performance improvement for 1024 bit RSA signs. 8437 [Mark Cox] 8438 8439 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2 8440 handling. Most clients have the effective key size in bits equal to 8441 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key. 8442 A few however don't do this and instead use the size of the decrypted key 8443 to determine the RC2 key length and the AlgorithmIdentifier to determine 8444 the effective key length. In this case the effective key length can still 8445 be 40 bits but the key length can be 168 bits for example. This is fixed 8446 by manually forcing an RC2 key into the EVP_PKEY structure because the 8447 EVP code can't currently handle unusual RC2 key sizes: it always assumes 8448 the key length and effective key length are equal. 8449 [Steve Henson] 8450 8451 *) Add a bunch of functions that should simplify the creation of 8452 X509_NAME structures. Now you should be able to do: 8453 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0); 8454 and have it automatically work out the correct field type and fill in 8455 the structures. The more adventurous can try: 8456 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0); 8457 and it will (hopefully) work out the correct multibyte encoding. 8458 [Steve Henson] 8459 8460 *) Change the 'req' utility to use the new field handling and multibyte 8461 copy routines. Before the DN field creation was handled in an ad hoc 8462 way in req, ca, and x509 which was rather broken and didn't support 8463 BMPStrings or UTF8Strings. Since some software doesn't implement 8464 BMPStrings or UTF8Strings yet, they can be enabled using the config file 8465 using the dirstring_type option. See the new comment in the default 8466 openssl.cnf for more info. 8467 [Steve Henson] 8468 8469 *) Make crypto/rand/md_rand.c more robust: 8470 - Assure unique random numbers after fork(). 8471 - Make sure that concurrent threads access the global counter and 8472 md serializably so that we never lose entropy in them 8473 or use exactly the same state in multiple threads. 8474 Access to the large state is not always serializable because 8475 the additional locking could be a performance killer, and 8476 md should be large enough anyway. 8477 [Bodo Moeller] 8478 8479 *) New file apps/app_rand.c with commonly needed functionality 8480 for handling the random seed file. 8481 8482 Use the random seed file in some applications that previously did not: 8483 ca, 8484 dsaparam -genkey (which also ignored its '-rand' option), 8485 s_client, 8486 s_server, 8487 x509 (when signing). 8488 Except on systems with /dev/urandom, it is crucial to have a random 8489 seed file at least for key creation, DSA signing, and for DH exchanges; 8490 for RSA signatures we could do without one. 8491 8492 gendh and gendsa (unlike genrsa) used to read only the first byte 8493 of each file listed in the '-rand' option. The function as previously 8494 found in genrsa is now in app_rand.c and is used by all programs 8495 that support '-rand'. 8496 [Bodo Moeller] 8497 8498 *) In RAND_write_file, use mode 0600 for creating files; 8499 don't just chmod when it may be too late. 8500 [Bodo Moeller] 8501 8502 *) Report an error from X509_STORE_load_locations 8503 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed. 8504 [Bill Perry] 8505 8506 *) New function ASN1_mbstring_copy() this copies a string in either 8507 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format 8508 into an ASN1_STRING type. A mask of permissible types is passed 8509 and it chooses the "minimal" type to use or an error if not type 8510 is suitable. 8511 [Steve Henson] 8512 8513 *) Add function equivalents to the various macros in asn1.h. The old 8514 macros are retained with an M_ prefix. Code inside the library can 8515 use the M_ macros. External code (including the openssl utility) 8516 should *NOT* in order to be "shared library friendly". 8517 [Steve Henson] 8518 8519 *) Add various functions that can check a certificate's extensions 8520 to see if it usable for various purposes such as SSL client, 8521 server or S/MIME and CAs of these types. This is currently 8522 VERY EXPERIMENTAL but will ultimately be used for certificate chain 8523 verification. Also added a -purpose flag to x509 utility to 8524 print out all the purposes. 8525 [Steve Henson] 8526 8527 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated 8528 functions. 8529 [Steve Henson] 8530 8531 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search 8532 for, obtain and decode and extension and obtain its critical flag. 8533 This allows all the necessary extension code to be handled in a 8534 single function call. 8535 [Steve Henson] 8536 8537 *) RC4 tune-up featuring 30-40% performance improvement on most RISC 8538 platforms. See crypto/rc4/rc4_enc.c for further details. 8539 [Andy Polyakov] 8540 8541 *) New -noout option to asn1parse. This causes no output to be produced 8542 its main use is when combined with -strparse and -out to extract data 8543 from a file (which may not be in ASN.1 format). 8544 [Steve Henson] 8545 8546 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer 8547 when producing the local key id. 8548 [Richard Levitte <levitte@stacken.kth.se>] 8549 8550 *) New option -dhparam in s_server. This allows a DH parameter file to be 8551 stated explicitly. If it is not stated then it tries the first server 8552 certificate file. The previous behaviour hard coded the filename 8553 "server.pem". 8554 [Steve Henson] 8555 8556 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow 8557 a public key to be input or output. For example: 8558 openssl rsa -in key.pem -pubout -out pubkey.pem 8559 Also added necessary DSA public key functions to handle this. 8560 [Steve Henson] 8561 8562 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained 8563 in the message. This was handled by allowing 8564 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it. 8565 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>] 8566 8567 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null 8568 to the end of the strings whereas this didn't. This would cause problems 8569 if strings read with d2i_ASN1_bytes() were later modified. 8570 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>] 8571 8572 *) Fix for base64 decode bug. When a base64 bio reads only one line of 8573 data and it contains EOF it will end up returning an error. This is 8574 caused by input 46 bytes long. The cause is due to the way base64 8575 BIOs find the start of base64 encoded data. They do this by trying a 8576 trial decode on each line until they find one that works. When they 8577 do a flag is set and it starts again knowing it can pass all the 8578 data directly through the decoder. Unfortunately it doesn't reset 8579 the context it uses. This means that if EOF is reached an attempt 8580 is made to pass two EOFs through the context and this causes the 8581 resulting error. This can also cause other problems as well. As is 8582 usual with these problems it takes *ages* to find and the fix is 8583 trivial: move one line. 8584 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ] 8585 8586 *) Ugly workaround to get s_client and s_server working under Windows. The 8587 old code wouldn't work because it needed to select() on sockets and the 8588 tty (for keypresses and to see if data could be written). Win32 only 8589 supports select() on sockets so we select() with a 1s timeout on the 8590 sockets and then see if any characters are waiting to be read, if none 8591 are present then we retry, we also assume we can always write data to 8592 the tty. This isn't nice because the code then blocks until we've 8593 received a complete line of data and it is effectively polling the 8594 keyboard at 1s intervals: however it's quite a bit better than not 8595 working at all :-) A dedicated Windows application might handle this 8596 with an event loop for example. 8597 [Steve Henson] 8598 8599 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign 8600 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions 8601 will be called when RSA_sign() and RSA_verify() are used. This is useful 8602 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available. 8603 For this to work properly RSA_public_decrypt() and RSA_private_encrypt() 8604 should *not* be used: RSA_sign() and RSA_verify() must be used instead. 8605 This necessitated the support of an extra signature type NID_md5_sha1 8606 for SSL signatures and modifications to the SSL library to use it instead 8607 of calling RSA_public_decrypt() and RSA_private_encrypt(). 8608 [Steve Henson] 8609 8610 *) Add new -verify -CAfile and -CApath options to the crl program, these 8611 will lookup a CRL issuers certificate and verify the signature in a 8612 similar way to the verify program. Tidy up the crl program so it 8613 no longer accesses structures directly. Make the ASN1 CRL parsing a bit 8614 less strict. It will now permit CRL extensions even if it is not 8615 a V2 CRL: this will allow it to tolerate some broken CRLs. 8616 [Steve Henson] 8617 8618 *) Initialize all non-automatic variables each time one of the openssl 8619 sub-programs is started (this is necessary as they may be started 8620 multiple times from the "OpenSSL>" prompt). 8621 [Lennart Bang, Bodo Moeller] 8622 8623 *) Preliminary compilation option RSA_NULL which disables RSA crypto without 8624 removing all other RSA functionality (this is what NO_RSA does). This 8625 is so (for example) those in the US can disable those operations covered 8626 by the RSA patent while allowing storage and parsing of RSA keys and RSA 8627 key generation. 8628 [Steve Henson] 8629 8630 *) Non-copying interface to BIO pairs. 8631 (still largely untested) 8632 [Bodo Moeller] 8633 8634 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive 8635 ASCII string. This was handled independently in various places before. 8636 [Steve Henson] 8637 8638 *) New functions UTF8_getc() and UTF8_putc() that parse and generate 8639 UTF8 strings a character at a time. 8640 [Steve Henson] 8641 8642 *) Use client_version from client hello to select the protocol 8643 (s23_srvr.c) and for RSA client key exchange verification 8644 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications. 8645 [Bodo Moeller] 8646 8647 *) Add various utility functions to handle SPKACs, these were previously 8648 handled by poking round in the structure internals. Added new function 8649 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to 8650 print, verify and generate SPKACs. Based on an original idea from 8651 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified. 8652 [Steve Henson] 8653 8654 *) RIPEMD160 is operational on all platforms and is back in 'make test'. 8655 [Andy Polyakov] 8656 8657 *) Allow the config file extension section to be overwritten on the 8658 command line. Based on an original idea from Massimiliano Pala 8659 <madwolf@comune.modena.it>. The new option is called -extensions 8660 and can be applied to ca, req and x509. Also -reqexts to override 8661 the request extensions in req and -crlexts to override the crl extensions 8662 in ca. 8663 [Steve Henson] 8664 8665 *) Add new feature to the SPKAC handling in ca. Now you can include 8666 the same field multiple times by preceding it by "XXXX." for example: 8667 1.OU="Unit name 1" 8668 2.OU="Unit name 2" 8669 this is the same syntax as used in the req config file. 8670 [Steve Henson] 8671 8672 *) Allow certificate extensions to be added to certificate requests. These 8673 are specified in a 'req_extensions' option of the req section of the 8674 config file. They can be printed out with the -text option to req but 8675 are otherwise ignored at present. 8676 [Steve Henson] 8677 8678 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first 8679 data read consists of only the final block it would not decrypted because 8680 EVP_CipherUpdate() would correctly report zero bytes had been decrypted. 8681 A misplaced 'break' also meant the decrypted final block might not be 8682 copied until the next read. 8683 [Steve Henson] 8684 8685 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added 8686 a few extra parameters to the DH structure: these will be useful if 8687 for example we want the value of 'q' or implement X9.42 DH. 8688 [Steve Henson] 8689 8690 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and 8691 provides hooks that allow the default DSA functions or functions on a 8692 "per key" basis to be replaced. This allows hardware acceleration and 8693 hardware key storage to be handled without major modification to the 8694 library. Also added low level modexp hooks and CRYPTO_EX structure and 8695 associated functions. 8696 [Steve Henson] 8697 8698 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO 8699 as "read only": it can't be written to and the buffer it points to will 8700 not be freed. Reading from a read only BIO is much more efficient than 8701 a normal memory BIO. This was added because there are several times when 8702 an area of memory needs to be read from a BIO. The previous method was 8703 to create a memory BIO and write the data to it, this results in two 8704 copies of the data and an O(n^2) reading algorithm. There is a new 8705 function BIO_new_mem_buf() which creates a read only memory BIO from 8706 an area of memory. Also modified the PKCS#7 routines to use read only 8707 memory BIOs. 8708 [Steve Henson] 8709 8710 *) Bugfix: ssl23_get_client_hello did not work properly when called in 8711 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of 8712 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read, 8713 but a retry condition occured while trying to read the rest. 8714 [Bodo Moeller] 8715 8716 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as 8717 NID_pkcs7_encrypted by default: this was wrong since this should almost 8718 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle 8719 the encrypted data type: this is a more sensible place to put it and it 8720 allows the PKCS#12 code to be tidied up that duplicated this 8721 functionality. 8722 [Steve Henson] 8723 8724 *) Changed obj_dat.pl script so it takes its input and output files on 8725 the command line. This should avoid shell escape redirection problems 8726 under Win32. 8727 [Steve Henson] 8728 8729 *) Initial support for certificate extension requests, these are included 8730 in things like Xenroll certificate requests. Included functions to allow 8731 extensions to be obtained and added. 8732 [Steve Henson] 8733 8734 *) -crlf option to s_client and s_server for sending newlines as 8735 CRLF (as required by many protocols). 8736 [Bodo Moeller] 8737 8738 Changes between 0.9.3a and 0.9.4 [09 Aug 1999] 8739 8740 *) Install libRSAglue.a when OpenSSL is built with RSAref. 8741 [Ralf S. Engelschall] 8742 8743 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency. 8744 [Andrija Antonijevic <TheAntony2@bigfoot.com>] 8745 8746 *) Fix -startdate and -enddate (which was missing) arguments to 'ca' 8747 program. 8748 [Steve Henson] 8749 8750 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as 8751 DH parameters/keys (q is lost during that conversion, but the resulting 8752 DH parameters contain its length). 8753 8754 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is 8755 much faster than DH_generate_parameters (which creates parameters 8756 where p = 2*q + 1), and also the smaller q makes DH computations 8757 much more efficient (160-bit exponentiation instead of 1024-bit 8758 exponentiation); so this provides a convenient way to support DHE 8759 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of 8760 utter importance to use 8761 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 8762 or 8763 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 8764 when such DH parameters are used, because otherwise small subgroup 8765 attacks may become possible! 8766 [Bodo Moeller] 8767 8768 *) Avoid memory leak in i2d_DHparams. 8769 [Bodo Moeller] 8770 8771 *) Allow the -k option to be used more than once in the enc program: 8772 this allows the same encrypted message to be read by multiple recipients. 8773 [Steve Henson] 8774 8775 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts 8776 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then 8777 it will always use the numerical form of the OID, even if it has a short 8778 or long name. 8779 [Steve Henson] 8780 8781 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp 8782 method only got called if p,q,dmp1,dmq1,iqmp components were present, 8783 otherwise bn_mod_exp was called. In the case of hardware keys for example 8784 no private key components need be present and it might store extra data 8785 in the RSA structure, which cannot be accessed from bn_mod_exp. 8786 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for 8787 private key operations. 8788 [Steve Henson] 8789 8790 *) Added support for SPARC Linux. 8791 [Andy Polyakov] 8792 8793 *) pem_password_cb function type incompatibly changed from 8794 typedef int pem_password_cb(char *buf, int size, int rwflag); 8795 to 8796 ....(char *buf, int size, int rwflag, void *userdata); 8797 so that applications can pass data to their callbacks: 8798 The PEM[_ASN1]_{read,write}... functions and macros now take an 8799 additional void * argument, which is just handed through whenever 8800 the password callback is called. 8801 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller] 8802 8803 New function SSL_CTX_set_default_passwd_cb_userdata. 8804 8805 Compatibility note: As many C implementations push function arguments 8806 onto the stack in reverse order, the new library version is likely to 8807 interoperate with programs that have been compiled with the old 8808 pem_password_cb definition (PEM_whatever takes some data that 8809 happens to be on the stack as its last argument, and the callback 8810 just ignores this garbage); but there is no guarantee whatsoever that 8811 this will work. 8812 8813 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=... 8814 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused 8815 problems not only on Windows, but also on some Unix platforms. 8816 To avoid problematic command lines, these definitions are now in an 8817 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl 8818 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds). 8819 [Bodo Moeller] 8820 8821 *) MIPS III/IV assembler module is reimplemented. 8822 [Andy Polyakov] 8823 8824 *) More DES library cleanups: remove references to srand/rand and 8825 delete an unused file. 8826 [Ulf M�ller] 8827 8828 *) Add support for the the free Netwide assembler (NASM) under Win32, 8829 since not many people have MASM (ml) and it can be hard to obtain. 8830 This is currently experimental but it seems to work OK and pass all 8831 the tests. Check out INSTALL.W32 for info. 8832 [Steve Henson] 8833 8834 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections 8835 without temporary keys kept an extra copy of the server key, 8836 and connections with temporary keys did not free everything in case 8837 of an error. 8838 [Bodo Moeller] 8839 8840 *) New function RSA_check_key and new openssl rsa option -check 8841 for verifying the consistency of RSA keys. 8842 [Ulf Moeller, Bodo Moeller] 8843 8844 *) Various changes to make Win32 compile work: 8845 1. Casts to avoid "loss of data" warnings in p5_crpt2.c 8846 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned 8847 comparison" warnings. 8848 3. Add sk_<TYPE>_sort to DEF file generator and do make update. 8849 [Steve Henson] 8850 8851 *) Add a debugging option to PKCS#5 v2 key generation function: when 8852 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and 8853 derived keys are printed to stderr. 8854 [Steve Henson] 8855 8856 *) Copy the flags in ASN1_STRING_dup(). 8857 [Roman E. Pavlov <pre@mo.msk.ru>] 8858 8859 *) The x509 application mishandled signing requests containing DSA 8860 keys when the signing key was also DSA and the parameters didn't match. 8861 8862 It was supposed to omit the parameters when they matched the signing key: 8863 the verifying software was then supposed to automatically use the CA's 8864 parameters if they were absent from the end user certificate. 8865 8866 Omitting parameters is no longer recommended. The test was also 8867 the wrong way round! This was probably due to unusual behaviour in 8868 EVP_cmp_parameters() which returns 1 if the parameters match. 8869 This meant that parameters were omitted when they *didn't* match and 8870 the certificate was useless. Certificates signed with 'ca' didn't have 8871 this bug. 8872 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>] 8873 8874 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems. 8875 The interface is as follows: 8876 Applications can use 8877 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(), 8878 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop(); 8879 "off" is now the default. 8880 The library internally uses 8881 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(), 8882 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on() 8883 to disable memory-checking temporarily. 8884 8885 Some inconsistent states that previously were possible (and were 8886 even the default) are now avoided. 8887 8888 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time 8889 with each memory chunk allocated; this is occasionally more helpful 8890 than just having a counter. 8891 8892 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID. 8893 8894 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future 8895 extensions. 8896 [Bodo Moeller] 8897 8898 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX), 8899 which largely parallels "options", but is for changing API behaviour, 8900 whereas "options" are about protocol behaviour. 8901 Initial "mode" flags are: 8902 8903 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when 8904 a single record has been written. 8905 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write 8906 retries use the same buffer location. 8907 (But all of the contents must be 8908 copied!) 8909 [Bodo Moeller] 8910 8911 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options 8912 worked. 8913 8914 *) Fix problems with no-hmac etc. 8915 [Ulf M�ller, pointed out by Brian Wellington <bwelling@tislabs.com>] 8916 8917 *) New functions RSA_get_default_method(), RSA_set_method() and 8918 RSA_get_method(). These allows replacement of RSA_METHODs without having 8919 to mess around with the internals of an RSA structure. 8920 [Steve Henson] 8921 8922 *) Fix memory leaks in DSA_do_sign and DSA_is_prime. 8923 Also really enable memory leak checks in openssl.c and in some 8924 test programs. 8925 [Chad C. Mulligan, Bodo Moeller] 8926 8927 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess 8928 up the length of negative integers. This has now been simplified to just 8929 store the length when it is first determined and use it later, rather 8930 than trying to keep track of where data is copied and updating it to 8931 point to the end. 8932 [Steve Henson, reported by Brien Wheeler 8933 <bwheeler@authentica-security.com>] 8934 8935 *) Add a new function PKCS7_signatureVerify. This allows the verification 8936 of a PKCS#7 signature but with the signing certificate passed to the 8937 function itself. This contrasts with PKCS7_dataVerify which assumes the 8938 certificate is present in the PKCS#7 structure. This isn't always the 8939 case: certificates can be omitted from a PKCS#7 structure and be 8940 distributed by "out of band" means (such as a certificate database). 8941 [Steve Henson] 8942 8943 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the 8944 function prototypes in pem.h, also change util/mkdef.pl to add the 8945 necessary function names. 8946 [Steve Henson] 8947 8948 *) mk1mf.pl (used by Windows builds) did not properly read the 8949 options set by Configure in the top level Makefile, and Configure 8950 was not even able to write more than one option correctly. 8951 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended. 8952 [Bodo Moeller] 8953 8954 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config 8955 file to be loaded from a BIO or FILE pointer. The BIO version will 8956 for example allow memory BIOs to contain config info. 8957 [Steve Henson] 8958 8959 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS. 8960 Whoever hopes to achieve shared-library compatibility across versions 8961 must use this, not the compile-time macro. 8962 (Exercise 0.9.4: Which is the minimum library version required by 8963 such programs?) 8964 Note: All this applies only to multi-threaded programs, others don't 8965 need locks. 8966 [Bodo Moeller] 8967 8968 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests 8969 through a BIO pair triggered the default case, i.e. 8970 SSLerr(...,SSL_R_UNKNOWN_STATE). 8971 [Bodo Moeller] 8972 8973 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications 8974 can use the SSL library even if none of the specific BIOs is 8975 appropriate. 8976 [Bodo Moeller] 8977 8978 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value 8979 for the encoded length. 8980 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>] 8981 8982 *) Add initial documentation of the X509V3 functions. 8983 [Steve Henson] 8984 8985 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and 8986 PEM_write_bio_PKCS8PrivateKey() that are equivalent to 8987 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more 8988 secure PKCS#8 private key format with a high iteration count. 8989 [Steve Henson] 8990 8991 *) Fix determination of Perl interpreter: A perl or perl5 8992 _directory_ in $PATH was also accepted as the interpreter. 8993 [Ralf S. Engelschall] 8994 8995 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking 8996 wrong with it but it was very old and did things like calling 8997 PEM_ASN1_read() directly and used MD5 for the hash not to mention some 8998 unusual formatting. 8999 [Steve Henson] 9000 9001 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed 9002 to use the new extension code. 9003 [Steve Henson] 9004 9005 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c 9006 with macros. This should make it easier to change their form, add extra 9007 arguments etc. Fix a few PEM prototypes which didn't have cipher as a 9008 constant. 9009 [Steve Henson] 9010 9011 *) Add to configuration table a new entry that can specify an alternative 9012 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep, 9013 according to Mark Crispin <MRC@Panda.COM>. 9014 [Bodo Moeller] 9015 9016#if 0 9017 *) DES CBC did not update the IV. Weird. 9018 [Ben Laurie] 9019#else 9020 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does. 9021 Changing the behaviour of the former might break existing programs -- 9022 where IV updating is needed, des_ncbc_encrypt can be used. 9023#endif 9024 9025 *) When bntest is run from "make test" it drives bc to check its 9026 calculations, as well as internally checking them. If an internal check 9027 fails, it needs to cause bc to give a non-zero result or make test carries 9028 on without noticing the failure. Fixed. 9029 [Ben Laurie] 9030 9031 *) DES library cleanups. 9032 [Ulf M�ller] 9033 9034 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be 9035 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit 9036 ciphers. NOTE: although the key derivation function has been verified 9037 against some published test vectors it has not been extensively tested 9038 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use 9039 of v2.0. 9040 [Steve Henson] 9041 9042 *) Instead of "mkdir -p", which is not fully portable, use new 9043 Perl script "util/mkdir-p.pl". 9044 [Bodo Moeller] 9045 9046 *) Rewrite the way password based encryption (PBE) is handled. It used to 9047 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter 9048 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms 9049 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now 9050 the 'parameter' field of the AlgorithmIdentifier is passed to the 9051 underlying key generation function so it must do its own ASN1 parsing. 9052 This has also changed the EVP_PBE_CipherInit() function which now has a 9053 'parameter' argument instead of literal salt and iteration count values 9054 and the function EVP_PBE_ALGOR_CipherInit() has been deleted. 9055 [Steve Henson] 9056 9057 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms 9058 and PKCS#8 functionality. New 'pkcs8' application linked to openssl. 9059 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE 9060 KEY" because this clashed with PKCS#8 unencrypted string. Since this 9061 value was just used as a "magic string" and not used directly its 9062 value doesn't matter. 9063 [Steve Henson] 9064 9065 *) Introduce some semblance of const correctness to BN. Shame C doesn't 9066 support mutable. 9067 [Ben Laurie] 9068 9069 *) "linux-sparc64" configuration (ultrapenguin). 9070 [Ray Miller <ray.miller@oucs.ox.ac.uk>] 9071 "linux-sparc" configuration. 9072 [Christian Forster <fo@hawo.stw.uni-erlangen.de>] 9073 9074 *) config now generates no-xxx options for missing ciphers. 9075 [Ulf M�ller] 9076 9077 *) Support the EBCDIC character set (work in progress). 9078 File ebcdic.c not yet included because it has a different license. 9079 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] 9080 9081 *) Support BS2000/OSD-POSIX. 9082 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] 9083 9084 *) Make callbacks for key generation use void * instead of char *. 9085 [Ben Laurie] 9086 9087 *) Make S/MIME samples compile (not yet tested). 9088 [Ben Laurie] 9089 9090 *) Additional typesafe stacks. 9091 [Ben Laurie] 9092 9093 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x). 9094 [Bodo Moeller] 9095 9096 9097 Changes between 0.9.3 and 0.9.3a [29 May 1999] 9098 9099 *) New configuration variant "sco5-gcc". 9100 9101 *) Updated some demos. 9102 [Sean O Riordain, Wade Scholine] 9103 9104 *) Add missing BIO_free at exit of pkcs12 application. 9105 [Wu Zhigang] 9106 9107 *) Fix memory leak in conf.c. 9108 [Steve Henson] 9109 9110 *) Updates for Win32 to assembler version of MD5. 9111 [Steve Henson] 9112 9113 *) Set #! path to perl in apps/der_chop to where we found it 9114 instead of using a fixed path. 9115 [Bodo Moeller] 9116 9117 *) SHA library changes for irix64-mips4-cc. 9118 [Andy Polyakov] 9119 9120 *) Improvements for VMS support. 9121 [Richard Levitte] 9122 9123 9124 Changes between 0.9.2b and 0.9.3 [24 May 1999] 9125 9126 *) Bignum library bug fix. IRIX 6 passes "make test" now! 9127 This also avoids the problems with SC4.2 and unpatched SC5. 9128 [Andy Polyakov <appro@fy.chalmers.se>] 9129 9130 *) New functions sk_num, sk_value and sk_set to replace the previous macros. 9131 These are required because of the typesafe stack would otherwise break 9132 existing code. If old code used a structure member which used to be STACK 9133 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with 9134 sk_num or sk_value it would produce an error because the num, data members 9135 are not present in STACK_OF. Now it just produces a warning. sk_set 9136 replaces the old method of assigning a value to sk_value 9137 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code 9138 that does this will no longer work (and should use sk_set instead) but 9139 this could be regarded as a "questionable" behaviour anyway. 9140 [Steve Henson] 9141 9142 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now 9143 correctly handle encrypted S/MIME data. 9144 [Steve Henson] 9145 9146 *) Change type of various DES function arguments from des_cblock 9147 (which means, in function argument declarations, pointer to char) 9148 to des_cblock * (meaning pointer to array with 8 char elements), 9149 which allows the compiler to do more typechecking; it was like 9150 that back in SSLeay, but with lots of ugly casts. 9151 9152 Introduce new type const_des_cblock. 9153 [Bodo Moeller] 9154 9155 *) Reorganise the PKCS#7 library and get rid of some of the more obvious 9156 problems: find RecipientInfo structure that matches recipient certificate 9157 and initialise the ASN1 structures properly based on passed cipher. 9158 [Steve Henson] 9159 9160 *) Belatedly make the BN tests actually check the results. 9161 [Ben Laurie] 9162 9163 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion 9164 to and from BNs: it was completely broken. New compilation option 9165 NEG_PUBKEY_BUG to allow for some broken certificates that encode public 9166 key elements as negative integers. 9167 [Steve Henson] 9168 9169 *) Reorganize and speed up MD5. 9170 [Andy Polyakov <appro@fy.chalmers.se>] 9171 9172 *) VMS support. 9173 [Richard Levitte <richard@levitte.org>] 9174 9175 *) New option -out to asn1parse to allow the parsed structure to be 9176 output to a file. This is most useful when combined with the -strparse 9177 option to examine the output of things like OCTET STRINGS. 9178 [Steve Henson] 9179 9180 *) Make SSL library a little more fool-proof by not requiring any longer 9181 that SSL_set_{accept,connect}_state be called before 9182 SSL_{accept,connect} may be used (SSL_set_..._state is omitted 9183 in many applications because usually everything *appeared* to work as 9184 intended anyway -- now it really works as intended). 9185 [Bodo Moeller] 9186 9187 *) Move openssl.cnf out of lib/. 9188 [Ulf M�ller] 9189 9190 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall 9191 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes 9192 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+ 9193 [Ralf S. Engelschall] 9194 9195 *) Various fixes to the EVP and PKCS#7 code. It may now be able to 9196 handle PKCS#7 enveloped data properly. 9197 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve] 9198 9199 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of 9200 copying pointers. The cert_st handling is changed by this in 9201 various ways (and thus what used to be known as ctx->default_cert 9202 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert 9203 any longer when s->cert does not give us what we need). 9204 ssl_cert_instantiate becomes obsolete by this change. 9205 As soon as we've got the new code right (possibly it already is?), 9206 we have solved a couple of bugs of the earlier code where s->cert 9207 was used as if it could not have been shared with other SSL structures. 9208 9209 Note that using the SSL API in certain dirty ways now will result 9210 in different behaviour than observed with earlier library versions: 9211 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx) 9212 does not influence s as it used to. 9213 9214 In order to clean up things more thoroughly, inside SSL_SESSION 9215 we don't use CERT any longer, but a new structure SESS_CERT 9216 that holds per-session data (if available); currently, this is 9217 the peer's certificate chain and, for clients, the server's certificate 9218 and temporary key. CERT holds only those values that can have 9219 meaningful defaults in an SSL_CTX. 9220 [Bodo Moeller] 9221 9222 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure 9223 from the internal representation. Various PKCS#7 fixes: remove some 9224 evil casts and set the enc_dig_alg field properly based on the signing 9225 key type. 9226 [Steve Henson] 9227 9228 *) Allow PKCS#12 password to be set from the command line or the 9229 environment. Let 'ca' get its config file name from the environment 9230 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req' 9231 and 'x509'). 9232 [Steve Henson] 9233 9234 *) Allow certificate policies extension to use an IA5STRING for the 9235 organization field. This is contrary to the PKIX definition but 9236 VeriSign uses it and IE5 only recognises this form. Document 'x509' 9237 extension option. 9238 [Steve Henson] 9239 9240 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic, 9241 without disallowing inline assembler and the like for non-pedantic builds. 9242 [Ben Laurie] 9243 9244 *) Support Borland C++ builder. 9245 [Janez Jere <jj@void.si>, modified by Ulf M�ller] 9246 9247 *) Support Mingw32. 9248 [Ulf M�ller] 9249 9250 *) SHA-1 cleanups and performance enhancements. 9251 [Andy Polyakov <appro@fy.chalmers.se>] 9252 9253 *) Sparc v8plus assembler for the bignum library. 9254 [Andy Polyakov <appro@fy.chalmers.se>] 9255 9256 *) Accept any -xxx and +xxx compiler options in Configure. 9257 [Ulf M�ller] 9258 9259 *) Update HPUX configuration. 9260 [Anonymous] 9261 9262 *) Add missing sk_<type>_unshift() function to safestack.h 9263 [Ralf S. Engelschall] 9264 9265 *) New function SSL_CTX_use_certificate_chain_file that sets the 9266 "extra_cert"s in addition to the certificate. (This makes sense 9267 only for "PEM" format files, as chains as a whole are not 9268 DER-encoded.) 9269 [Bodo Moeller] 9270 9271 *) Support verify_depth from the SSL API. 9272 x509_vfy.c had what can be considered an off-by-one-error: 9273 Its depth (which was not part of the external interface) 9274 was actually counting the number of certificates in a chain; 9275 now it really counts the depth. 9276 [Bodo Moeller] 9277 9278 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used 9279 instead of X509err, which often resulted in confusing error 9280 messages since the error codes are not globally unique 9281 (e.g. an alleged error in ssl3_accept when a certificate 9282 didn't match the private key). 9283 9284 *) New function SSL_CTX_set_session_id_context that allows to set a default 9285 value (so that you don't need SSL_set_session_id_context for each 9286 connection using the SSL_CTX). 9287 [Bodo Moeller] 9288 9289 *) OAEP decoding bug fix. 9290 [Ulf M�ller] 9291 9292 *) Support INSTALL_PREFIX for package builders, as proposed by 9293 David Harris. 9294 [Bodo Moeller] 9295 9296 *) New Configure options "threads" and "no-threads". For systems 9297 where the proper compiler options are known (currently Solaris 9298 and Linux), "threads" is the default. 9299 [Bodo Moeller] 9300 9301 *) New script util/mklink.pl as a faster substitute for util/mklink.sh. 9302 [Bodo Moeller] 9303 9304 *) Install various scripts to $(OPENSSLDIR)/misc, not to 9305 $(INSTALLTOP)/bin -- they shouldn't clutter directories 9306 such as /usr/local/bin. 9307 [Bodo Moeller] 9308 9309 *) "make linux-shared" to build shared libraries. 9310 [Niels Poppe <niels@netbox.org>] 9311 9312 *) New Configure option no-<cipher> (rsa, idea, rc5, ...). 9313 [Ulf M�ller] 9314 9315 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for 9316 extension adding in x509 utility. 9317 [Steve Henson] 9318 9319 *) Remove NOPROTO sections and error code comments. 9320 [Ulf M�ller] 9321 9322 *) Partial rewrite of the DEF file generator to now parse the ANSI 9323 prototypes. 9324 [Steve Henson] 9325 9326 *) New Configure options --prefix=DIR and --openssldir=DIR. 9327 [Ulf M�ller] 9328 9329 *) Complete rewrite of the error code script(s). It is all now handled 9330 by one script at the top level which handles error code gathering, 9331 header rewriting and C source file generation. It should be much better 9332 than the old method: it now uses a modified version of Ulf's parser to 9333 read the ANSI prototypes in all header files (thus the old K&R definitions 9334 aren't needed for error creation any more) and do a better job of 9335 translating function codes into names. The old 'ASN1 error code imbedded 9336 in a comment' is no longer necessary and it doesn't use .err files which 9337 have now been deleted. Also the error code call doesn't have to appear all 9338 on one line (which resulted in some large lines...). 9339 [Steve Henson] 9340 9341 *) Change #include filenames from <foo.h> to <openssl/foo.h>. 9342 [Bodo Moeller] 9343 9344 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return 9345 0 (which usually indicates a closed connection), but continue reading. 9346 [Bodo Moeller] 9347 9348 *) Fix some race conditions. 9349 [Bodo Moeller] 9350 9351 *) Add support for CRL distribution points extension. Add Certificate 9352 Policies and CRL distribution points documentation. 9353 [Steve Henson] 9354 9355 *) Move the autogenerated header file parts to crypto/opensslconf.h. 9356 [Ulf M�ller] 9357 9358 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of 9359 8 of keying material. Merlin has also confirmed interop with this fix 9360 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0. 9361 [Merlin Hughes <merlin@baltimore.ie>] 9362 9363 *) Fix lots of warnings. 9364 [Richard Levitte <levitte@stacken.kth.se>] 9365 9366 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if 9367 the directory spec didn't end with a LIST_SEPARATOR_CHAR. 9368 [Richard Levitte <levitte@stacken.kth.se>] 9369 9370 *) Fix problems with sizeof(long) == 8. 9371 [Andy Polyakov <appro@fy.chalmers.se>] 9372 9373 *) Change functions to ANSI C. 9374 [Ulf M�ller] 9375 9376 *) Fix typos in error codes. 9377 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf M�ller] 9378 9379 *) Remove defunct assembler files from Configure. 9380 [Ulf M�ller] 9381 9382 *) SPARC v8 assembler BIGNUM implementation. 9383 [Andy Polyakov <appro@fy.chalmers.se>] 9384 9385 *) Support for Certificate Policies extension: both print and set. 9386 Various additions to support the r2i method this uses. 9387 [Steve Henson] 9388 9389 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could 9390 return a const string when you are expecting an allocated buffer. 9391 [Ben Laurie] 9392 9393 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE 9394 types DirectoryString and DisplayText. 9395 [Steve Henson] 9396 9397 *) Add code to allow r2i extensions to access the configuration database, 9398 add an LHASH database driver and add several ctx helper functions. 9399 [Steve Henson] 9400 9401 *) Fix an evil bug in bn_expand2() which caused various BN functions to 9402 fail when they extended the size of a BIGNUM. 9403 [Steve Henson] 9404 9405 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to 9406 support typesafe stack. 9407 [Steve Henson] 9408 9409 *) Fix typo in SSL_[gs]et_options(). 9410 [Nils Frostberg <nils@medcom.se>] 9411 9412 *) Delete various functions and files that belonged to the (now obsolete) 9413 old X509V3 handling code. 9414 [Steve Henson] 9415 9416 *) New Configure option "rsaref". 9417 [Ulf M�ller] 9418 9419 *) Don't auto-generate pem.h. 9420 [Bodo Moeller] 9421 9422 *) Introduce type-safe ASN.1 SETs. 9423 [Ben Laurie] 9424 9425 *) Convert various additional casted stacks to type-safe STACK_OF() variants. 9426 [Ben Laurie, Ralf S. Engelschall, Steve Henson] 9427 9428 *) Introduce type-safe STACKs. This will almost certainly break lots of code 9429 that links with OpenSSL (well at least cause lots of warnings), but fear 9430 not: the conversion is trivial, and it eliminates loads of evil casts. A 9431 few STACKed things have been converted already. Feel free to convert more. 9432 In the fullness of time, I'll do away with the STACK type altogether. 9433 [Ben Laurie] 9434 9435 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate 9436 specified in <certfile> by updating the entry in the index.txt file. 9437 This way one no longer has to edit the index.txt file manually for 9438 revoking a certificate. The -revoke option does the gory details now. 9439 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall] 9440 9441 *) Fix `openssl crl -noout -text' combination where `-noout' killed the 9442 `-text' option at all and this way the `-noout -text' combination was 9443 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'. 9444 [Ralf S. Engelschall] 9445 9446 *) Make sure a corresponding plain text error message exists for the 9447 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a 9448 verify callback function determined that a certificate was revoked. 9449 [Ralf S. Engelschall] 9450 9451 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for 9452 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test 9453 all available cipers including rc5, which was forgotten until now. 9454 In order to let the testing shell script know which algorithms 9455 are available, a new (up to now undocumented) command 9456 "openssl list-cipher-commands" is used. 9457 [Bodo Moeller] 9458 9459 *) Bugfix: s_client occasionally would sleep in select() when 9460 it should have checked SSL_pending() first. 9461 [Bodo Moeller] 9462 9463 *) New functions DSA_do_sign and DSA_do_verify to provide access to 9464 the raw DSA values prior to ASN.1 encoding. 9465 [Ulf M�ller] 9466 9467 *) Tweaks to Configure 9468 [Niels Poppe <niels@netbox.org>] 9469 9470 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support, 9471 yet... 9472 [Steve Henson] 9473 9474 *) New variables $(RANLIB) and $(PERL) in the Makefiles. 9475 [Ulf M�ller] 9476 9477 *) New config option to avoid instructions that are illegal on the 80386. 9478 The default code is faster, but requires at least a 486. 9479 [Ulf M�ller] 9480 9481 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and 9482 SSL2_SERVER_VERSION (not used at all) macros, which are now the 9483 same as SSL2_VERSION anyway. 9484 [Bodo Moeller] 9485 9486 *) New "-showcerts" option for s_client. 9487 [Bodo Moeller] 9488 9489 *) Still more PKCS#12 integration. Add pkcs12 application to openssl 9490 application. Various cleanups and fixes. 9491 [Steve Henson] 9492 9493 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and 9494 modify error routines to work internally. Add error codes and PBE init 9495 to library startup routines. 9496 [Steve Henson] 9497 9498 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and 9499 packing functions to asn1 and evp. Changed function names and error 9500 codes along the way. 9501 [Steve Henson] 9502 9503 *) PKCS12 integration: and so it begins... First of several patches to 9504 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12 9505 objects to objects.h 9506 [Steve Henson] 9507 9508 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1 9509 and display support for Thawte strong extranet extension. 9510 [Steve Henson] 9511 9512 *) Add LinuxPPC support. 9513 [Jeff Dubrule <igor@pobox.org>] 9514 9515 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to 9516 bn_div_words in alpha.s. 9517 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie] 9518 9519 *) Make sure the RSA OAEP test is skipped under -DRSAref because 9520 OAEP isn't supported when OpenSSL is built with RSAref. 9521 [Ulf Moeller <ulf@fitug.de>] 9522 9523 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h 9524 so they no longer are missing under -DNOPROTO. 9525 [Soren S. Jorvang <soren@t.dk>] 9526 9527 9528 Changes between 0.9.1c and 0.9.2b [22 Mar 1999] 9529 9530 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still 9531 doesn't work when the session is reused. Coming soon! 9532 [Ben Laurie] 9533 9534 *) Fix a security hole, that allows sessions to be reused in the wrong 9535 context thus bypassing client cert protection! All software that uses 9536 client certs and session caches in multiple contexts NEEDS PATCHING to 9537 allow session reuse! A fuller solution is in the works. 9538 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)] 9539 9540 *) Some more source tree cleanups (removed obsolete files 9541 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed 9542 permission on "config" script to be executable) and a fix for the INSTALL 9543 document. 9544 [Ulf Moeller <ulf@fitug.de>] 9545 9546 *) Remove some legacy and erroneous uses of malloc, free instead of 9547 Malloc, Free. 9548 [Lennart Bang <lob@netstream.se>, with minor changes by Steve] 9549 9550 *) Make rsa_oaep_test return non-zero on error. 9551 [Ulf Moeller <ulf@fitug.de>] 9552 9553 *) Add support for native Solaris shared libraries. Configure 9554 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice 9555 if someone would make that last step automatic. 9556 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>] 9557 9558 *) ctx_size was not built with the right compiler during "make links". Fixed. 9559 [Ben Laurie] 9560 9561 *) Change the meaning of 'ALL' in the cipher list. It now means "everything 9562 except NULL ciphers". This means the default cipher list will no longer 9563 enable NULL ciphers. They need to be specifically enabled e.g. with 9564 the string "DEFAULT:eNULL". 9565 [Steve Henson] 9566 9567 *) Fix to RSA private encryption routines: if p < q then it would 9568 occasionally produce an invalid result. This will only happen with 9569 externally generated keys because OpenSSL (and SSLeay) ensure p > q. 9570 [Steve Henson] 9571 9572 *) Be less restrictive and allow also `perl util/perlpath.pl 9573 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin', 9574 because this way one can also use an interpreter named `perl5' (which is 9575 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still 9576 installed as `perl'). 9577 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] 9578 9579 *) Let util/clean-depend.pl work also with older Perl 5.00x versions. 9580 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] 9581 9582 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add 9583 advapi32.lib to Win32 build and change the pem test comparision 9584 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the 9585 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h 9586 and crypto/des/ede_cbcm_enc.c. 9587 [Steve Henson] 9588 9589 *) DES quad checksum was broken on big-endian architectures. Fixed. 9590 [Ben Laurie] 9591 9592 *) Comment out two functions in bio.h that aren't implemented. Fix up the 9593 Win32 test batch file so it (might) work again. The Win32 test batch file 9594 is horrible: I feel ill.... 9595 [Steve Henson] 9596 9597 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected 9598 in e_os.h. Audit of header files to check ANSI and non ANSI 9599 sections: 10 functions were absent from non ANSI section and not exported 9600 from Windows DLLs. Fixed up libeay.num for new functions. 9601 [Steve Henson] 9602 9603 *) Make `openssl version' output lines consistent. 9604 [Ralf S. Engelschall] 9605 9606 *) Fix Win32 symbol export lists for BIO functions: Added 9607 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data 9608 to ms/libeay{16,32}.def. 9609 [Ralf S. Engelschall] 9610 9611 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled 9612 fine under Unix and passes some trivial tests I've now added. But the 9613 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was 9614 added to make sure no one expects that this stuff really works in the 9615 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources 9616 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and 9617 openssl_bio.xs. 9618 [Ralf S. Engelschall] 9619 9620 *) Fix the generation of two part addresses in perl. 9621 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie] 9622 9623 *) Add config entry for Linux on MIPS. 9624 [John Tobey <jtobey@channel1.com>] 9625 9626 *) Make links whenever Configure is run, unless we are on Windoze. 9627 [Ben Laurie] 9628 9629 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf. 9630 Currently only issuerAltName and AuthorityKeyIdentifier make any sense 9631 in CRLs. 9632 [Steve Henson] 9633 9634 *) Add a useful kludge to allow package maintainers to specify compiler and 9635 other platforms details on the command line without having to patch the 9636 Configure script everytime: One now can use ``perl Configure 9637 <id>:<details>'', i.e. platform ids are allowed to have details appended 9638 to them (seperated by colons). This is treated as there would be a static 9639 pre-configured entry in Configure's %table under key <id> with value 9640 <details> and ``perl Configure <id>'' is called. So, when you want to 9641 perform a quick test-compile under FreeBSD 3.1 with pgcc and without 9642 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"'' 9643 now, which overrides the FreeBSD-elf entry on-the-fly. 9644 [Ralf S. Engelschall] 9645 9646 *) Disable new TLS1 ciphersuites by default: they aren't official yet. 9647 [Ben Laurie] 9648 9649 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified 9650 on the `perl Configure ...' command line. This way one can compile 9651 OpenSSL libraries with Position Independent Code (PIC) which is needed 9652 for linking it into DSOs. 9653 [Ralf S. Engelschall] 9654 9655 *) Remarkably, export ciphers were totally broken and no-one had noticed! 9656 Fixed. 9657 [Ben Laurie] 9658 9659 *) Cleaned up the LICENSE document: The official contact for any license 9660 questions now is the OpenSSL core team under openssl-core@openssl.org. 9661 And add a paragraph about the dual-license situation to make sure people 9662 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply 9663 to the OpenSSL toolkit. 9664 [Ralf S. Engelschall] 9665 9666 *) General source tree makefile cleanups: Made `making xxx in yyy...' 9667 display consistent in the source tree and replaced `/bin/rm' by `rm'. 9668 Additonally cleaned up the `make links' target: Remove unnecessary 9669 semicolons, subsequent redundant removes, inline point.sh into mklink.sh 9670 to speed processing and no longer clutter the display with confusing 9671 stuff. Instead only the actually done links are displayed. 9672 [Ralf S. Engelschall] 9673 9674 *) Permit null encryption ciphersuites, used for authentication only. It used 9675 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this. 9676 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null 9677 encryption. 9678 [Ben Laurie] 9679 9680 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder 9681 signed attributes when verifying signatures (this would break them), 9682 the detached data encoding was wrong and public keys obtained using 9683 X509_get_pubkey() weren't freed. 9684 [Steve Henson] 9685 9686 *) Add text documentation for the BUFFER functions. Also added a work around 9687 to a Win95 console bug. This was triggered by the password read stuff: the 9688 last character typed gets carried over to the next fread(). If you were 9689 generating a new cert request using 'req' for example then the last 9690 character of the passphrase would be CR which would then enter the first 9691 field as blank. 9692 [Steve Henson] 9693 9694 *) Added the new `Includes OpenSSL Cryptography Software' button as 9695 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay 9696 button and can be used by applications based on OpenSSL to show the 9697 relationship to the OpenSSL project. 9698 [Ralf S. Engelschall] 9699 9700 *) Remove confusing variables in function signatures in files 9701 ssl/ssl_lib.c and ssl/ssl.h. 9702 [Lennart Bong <lob@kulthea.stacken.kth.se>] 9703 9704 *) Don't install bss_file.c under PREFIX/include/ 9705 [Lennart Bong <lob@kulthea.stacken.kth.se>] 9706 9707 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle 9708 functions that return function pointers and has support for NT specific 9709 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various 9710 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from 9711 unsigned to signed types: this was killing the Win32 compile. 9712 [Steve Henson] 9713 9714 *) Add new certificate file to stack functions, 9715 SSL_add_dir_cert_subjects_to_stack() and 9716 SSL_add_file_cert_subjects_to_stack(). These largely supplant 9717 SSL_load_client_CA_file(), and can be used to add multiple certs easily 9718 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()). 9719 This means that Apache-SSL and similar packages don't have to mess around 9720 to add as many CAs as they want to the preferred list. 9721 [Ben Laurie] 9722 9723 *) Experiment with doxygen documentation. Currently only partially applied to 9724 ssl/ssl_lib.c. 9725 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with 9726 openssl.doxy as the configuration file. 9727 [Ben Laurie] 9728 9729 *) Get rid of remaining C++-style comments which strict C compilers hate. 9730 [Ralf S. Engelschall, pointed out by Carlos Amengual] 9731 9732 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not 9733 compiled in by default: it has problems with large keys. 9734 [Steve Henson] 9735 9736 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and 9737 DH private keys and/or callback functions which directly correspond to 9738 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This 9739 is needed for applications which have to configure certificates on a 9740 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis 9741 (e.g. s_server). 9742 For the RSA certificate situation is makes no difference, but 9743 for the DSA certificate situation this fixes the "no shared cipher" 9744 problem where the OpenSSL cipher selection procedure failed because the 9745 temporary keys were not overtaken from the context and the API provided 9746 no way to reconfigure them. 9747 The new functions now let applications reconfigure the stuff and they 9748 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh, 9749 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new 9750 non-public-API function ssl_cert_instantiate() is used as a helper 9751 function and also to reduce code redundancy inside ssl_rsa.c. 9752 [Ralf S. Engelschall] 9753 9754 *) Move s_server -dcert and -dkey options out of the undocumented feature 9755 area because they are useful for the DSA situation and should be 9756 recognized by the users. 9757 [Ralf S. Engelschall] 9758 9759 *) Fix the cipher decision scheme for export ciphers: the export bits are 9760 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within 9761 SSL_EXP_MASK. So, the original variable has to be used instead of the 9762 already masked variable. 9763 [Richard Levitte <levitte@stacken.kth.se>] 9764 9765 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c 9766 [Richard Levitte <levitte@stacken.kth.se>] 9767 9768 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal() 9769 from `int' to `unsigned int' because it's a length and initialized by 9770 EVP_DigestFinal() which expects an `unsigned int *'. 9771 [Richard Levitte <levitte@stacken.kth.se>] 9772 9773 *) Don't hard-code path to Perl interpreter on shebang line of Configure 9774 script. Instead use the usual Shell->Perl transition trick. 9775 [Ralf S. Engelschall] 9776 9777 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates 9778 (in addition to RSA certificates) to match the behaviour of `openssl dsa 9779 -noout -modulus' as it's already the case for `openssl rsa -noout 9780 -modulus'. For RSA the -modulus is the real "modulus" while for DSA 9781 currently the public key is printed (a decision which was already done by 9782 `openssl dsa -modulus' in the past) which serves a similar purpose. 9783 Additionally the NO_RSA no longer completely removes the whole -modulus 9784 option; it now only avoids using the RSA stuff. Same applies to NO_DSA 9785 now, too. 9786 [Ralf S. Engelschall] 9787 9788 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested 9789 BIO. See the source (crypto/evp/bio_ok.c) for more info. 9790 [Arne Ansper <arne@ats.cyber.ee>] 9791 9792 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs 9793 to be added. Now both 'req' and 'ca' can use new objects defined in the 9794 config file. 9795 [Steve Henson] 9796 9797 *) Add cool BIO that does syslog (or event log on NT). 9798 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie] 9799 9800 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5, 9801 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and 9802 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher 9803 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt. 9804 [Ben Laurie] 9805 9806 *) Add preliminary config info for new extension code. 9807 [Steve Henson] 9808 9809 *) Make RSA_NO_PADDING really use no padding. 9810 [Ulf Moeller <ulf@fitug.de>] 9811 9812 *) Generate errors when private/public key check is done. 9813 [Ben Laurie] 9814 9815 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support 9816 for some CRL extensions and new objects added. 9817 [Steve Henson] 9818 9819 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private 9820 key usage extension and fuller support for authority key id. 9821 [Steve Henson] 9822 9823 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved 9824 padding method for RSA, which is recommended for new applications in PKCS 9825 #1 v2.0 (RFC 2437, October 1998). 9826 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical 9827 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure 9828 against Bleichbacher's attack on RSA. 9829 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by 9830 Ben Laurie] 9831 9832 *) Updates to the new SSL compression code 9833 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 9834 9835 *) Fix so that the version number in the master secret, when passed 9836 via RSA, checks that if TLS was proposed, but we roll back to SSLv3 9837 (because the server will not accept higher), that the version number 9838 is 0x03,0x01, not 0x03,0x00 9839 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 9840 9841 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory 9842 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes 9843 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c 9844 [Steve Henson] 9845 9846 *) Support for RAW extensions where an arbitrary extension can be 9847 created by including its DER encoding. See apps/openssl.cnf for 9848 an example. 9849 [Steve Henson] 9850 9851 *) Make sure latest Perl versions don't interpret some generated C array 9852 code as Perl array code in the crypto/err/err_genc.pl script. 9853 [Lars Weber <3weber@informatik.uni-hamburg.de>] 9854 9855 *) Modify ms/do_ms.bat to not generate assembly language makefiles since 9856 not many people have the assembler. Various Win32 compilation fixes and 9857 update to the INSTALL.W32 file with (hopefully) more accurate Win32 9858 build instructions. 9859 [Steve Henson] 9860 9861 *) Modify configure script 'Configure' to automatically create crypto/date.h 9862 file under Win32 and also build pem.h from pem.org. New script 9863 util/mkfiles.pl to create the MINFO file on environments that can't do a 9864 'make files': perl util/mkfiles.pl >MINFO should work. 9865 [Steve Henson] 9866 9867 *) Major rework of DES function declarations, in the pursuit of correctness 9868 and purity. As a result, many evil casts evaporated, and some weirdness, 9869 too. You may find this causes warnings in your code. Zapping your evil 9870 casts will probably fix them. Mostly. 9871 [Ben Laurie] 9872 9873 *) Fix for a typo in asn1.h. Bug fix to object creation script 9874 obj_dat.pl. It considered a zero in an object definition to mean 9875 "end of object": none of the objects in objects.h have any zeros 9876 so it wasn't spotted. 9877 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>] 9878 9879 *) Add support for Triple DES Cipher Block Chaining with Output Feedback 9880 Masking (CBCM). In the absence of test vectors, the best I have been able 9881 to do is check that the decrypt undoes the encrypt, so far. Send me test 9882 vectors if you have them. 9883 [Ben Laurie] 9884 9885 *) Correct calculation of key length for export ciphers (too much space was 9886 allocated for null ciphers). This has not been tested! 9887 [Ben Laurie] 9888 9889 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage 9890 message is now correct (it understands "crypto" and "ssl" on its 9891 command line). There is also now an "update" option. This will update 9892 the util/ssleay.num and util/libeay.num files with any new functions. 9893 If you do a: 9894 perl util/mkdef.pl crypto ssl update 9895 it will update them. 9896 [Steve Henson] 9897 9898 *) Overhauled the Perl interface (perl/*): 9899 - ported BN stuff to OpenSSL's different BN library 9900 - made the perl/ source tree CVS-aware 9901 - renamed the package from SSLeay to OpenSSL (the files still contain 9902 their history because I've copied them in the repository) 9903 - removed obsolete files (the test scripts will be replaced 9904 by better Test::Harness variants in the future) 9905 [Ralf S. Engelschall] 9906 9907 *) First cut for a very conservative source tree cleanup: 9908 1. merge various obsolete readme texts into doc/ssleay.txt 9909 where we collect the old documents and readme texts. 9910 2. remove the first part of files where I'm already sure that we no 9911 longer need them because of three reasons: either they are just temporary 9912 files which were left by Eric or they are preserved original files where 9913 I've verified that the diff is also available in the CVS via "cvs diff 9914 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for 9915 the crypto/md/ stuff). 9916 [Ralf S. Engelschall] 9917 9918 *) More extension code. Incomplete support for subject and issuer alt 9919 name, issuer and authority key id. Change the i2v function parameters 9920 and add an extra 'crl' parameter in the X509V3_CTX structure: guess 9921 what that's for :-) Fix to ASN1 macro which messed up 9922 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED. 9923 [Steve Henson] 9924 9925 *) Preliminary support for ENUMERATED type. This is largely copied from the 9926 INTEGER code. 9927 [Steve Henson] 9928 9929 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy. 9930 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 9931 9932 *) Make sure `make rehash' target really finds the `openssl' program. 9933 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] 9934 9935 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd 9936 like to hear about it if this slows down other processors. 9937 [Ben Laurie] 9938 9939 *) Add CygWin32 platform information to Configure script. 9940 [Alan Batie <batie@aahz.jf.intel.com>] 9941 9942 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm' 9943 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>] 9944 9945 *) New program nseq to manipulate netscape certificate sequences 9946 [Steve Henson] 9947 9948 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a 9949 few typos. 9950 [Steve Henson] 9951 9952 *) Fixes to BN code. Previously the default was to define BN_RECURSION 9953 but the BN code had some problems that would cause failures when 9954 doing certificate verification and some other functions. 9955 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 9956 9957 *) Add ASN1 and PEM code to support netscape certificate sequences. 9958 [Steve Henson] 9959 9960 *) Add ASN1 and PEM code to support netscape certificate sequences. 9961 [Steve Henson] 9962 9963 *) Add several PKIX and private extended key usage OIDs. 9964 [Steve Henson] 9965 9966 *) Modify the 'ca' program to handle the new extension code. Modify 9967 openssl.cnf for new extension format, add comments. 9968 [Steve Henson] 9969 9970 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req' 9971 and add a sample to openssl.cnf so req -x509 now adds appropriate 9972 CA extensions. 9973 [Steve Henson] 9974 9975 *) Continued X509 V3 changes. Add to other makefiles, integrate with the 9976 error code, add initial support to X509_print() and x509 application. 9977 [Steve Henson] 9978 9979 *) Takes a deep breath and start addding X509 V3 extension support code. Add 9980 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this 9981 stuff is currently isolated and isn't even compiled yet. 9982 [Steve Henson] 9983 9984 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL 9985 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print. 9986 Removed the versions check from X509 routines when loading extensions: 9987 this allows certain broken certificates that don't set the version 9988 properly to be processed. 9989 [Steve Henson] 9990 9991 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another 9992 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which 9993 can still be regenerated with "make depend". 9994 [Ben Laurie] 9995 9996 *) Spelling mistake in C version of CAST-128. 9997 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>] 9998 9999 *) Changes to the error generation code. The perl script err-code.pl 10000 now reads in the old error codes and retains the old numbers, only 10001 adding new ones if necessary. It also only changes the .err files if new 10002 codes are added. The makefiles have been modified to only insert errors 10003 when needed (to avoid needlessly modifying header files). This is done 10004 by only inserting errors if the .err file is newer than the auto generated 10005 C file. To rebuild all the error codes from scratch (the old behaviour) 10006 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl 10007 or delete all the .err files. 10008 [Steve Henson] 10009 10010 *) CAST-128 was incorrectly implemented for short keys. The C version has 10011 been fixed, but is untested. The assembler versions are also fixed, but 10012 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing 10013 to regenerate it if needed. 10014 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun 10015 Hagino <itojun@kame.net>] 10016 10017 *) File was opened incorrectly in randfile.c. 10018 [Ulf M�ller <ulf@fitug.de>] 10019 10020 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print 10021 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or 10022 GeneralizedTime. ASN1_TIME is the proper type used in certificates et 10023 al: it's just almost always a UTCTime. Note this patch adds new error 10024 codes so do a "make errors" if there are problems. 10025 [Steve Henson] 10026 10027 *) Correct Linux 1 recognition in config. 10028 [Ulf M�ller <ulf@fitug.de>] 10029 10030 *) Remove pointless MD5 hash when using DSA keys in ca. 10031 [Anonymous <nobody@replay.com>] 10032 10033 *) Generate an error if given an empty string as a cert directory. Also 10034 generate an error if handed NULL (previously returned 0 to indicate an 10035 error, but didn't set one). 10036 [Ben Laurie, reported by Anonymous <nobody@replay.com>] 10037 10038 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last. 10039 [Ben Laurie] 10040 10041 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct 10042 parameters. This was causing a warning which killed off the Win32 compile. 10043 [Steve Henson] 10044 10045 *) Remove C++ style comments from crypto/bn/bn_local.h. 10046 [Neil Costigan <neil.costigan@celocom.com>] 10047 10048 *) The function OBJ_txt2nid was broken. It was supposed to return a nid 10049 based on a text string, looking up short and long names and finally 10050 "dot" format. The "dot" format stuff didn't work. Added new function 10051 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote 10052 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the 10053 OID is not part of the table. 10054 [Steve Henson] 10055 10056 *) Add prototypes to X509 lookup/verify methods, fixing a bug in 10057 X509_LOOKUP_by_alias(). 10058 [Ben Laurie] 10059 10060 *) Sort openssl functions by name. 10061 [Ben Laurie] 10062 10063 *) Get the gendsa program working (hopefully) and add it to app list. Remove 10064 encryption from sample DSA keys (in case anyone is interested the password 10065 was "1234"). 10066 [Steve Henson] 10067 10068 *) Make _all_ *_free functions accept a NULL pointer. 10069 [Frans Heymans <fheymans@isaserver.be>] 10070 10071 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use 10072 NULL pointers. 10073 [Anonymous <nobody@replay.com>] 10074 10075 *) s_server should send the CAfile as acceptable CAs, not its own cert. 10076 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>] 10077 10078 *) Don't blow it for numeric -newkey arguments to apps/req. 10079 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>] 10080 10081 *) Temp key "for export" tests were wrong in s3_srvr.c. 10082 [Anonymous <nobody@replay.com>] 10083 10084 *) Add prototype for temp key callback functions 10085 SSL_CTX_set_tmp_{rsa,dh}_callback(). 10086 [Ben Laurie] 10087 10088 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and 10089 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey(). 10090 [Steve Henson] 10091 10092 *) X509_name_add_entry() freed the wrong thing after an error. 10093 [Arne Ansper <arne@ats.cyber.ee>] 10094 10095 *) rsa_eay.c would attempt to free a NULL context. 10096 [Arne Ansper <arne@ats.cyber.ee>] 10097 10098 *) BIO_s_socket() had a broken should_retry() on Windoze. 10099 [Arne Ansper <arne@ats.cyber.ee>] 10100 10101 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH. 10102 [Arne Ansper <arne@ats.cyber.ee>] 10103 10104 *) Make sure the already existing X509_STORE->depth variable is initialized 10105 in X509_STORE_new(), but document the fact that this variable is still 10106 unused in the certificate verification process. 10107 [Ralf S. Engelschall] 10108 10109 *) Fix the various library and apps files to free up pkeys obtained from 10110 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions. 10111 [Steve Henson] 10112 10113 *) Fix reference counting in X509_PUBKEY_get(). This makes 10114 demos/maurice/example2.c work, amongst others, probably. 10115 [Steve Henson and Ben Laurie] 10116 10117 *) First cut of a cleanup for apps/. First the `ssleay' program is now named 10118 `openssl' and second, the shortcut symlinks for the `openssl <command>' 10119 are no longer created. This way we have a single and consistent command 10120 line interface `openssl <command>', similar to `cvs <command>'. 10121 [Ralf S. Engelschall, Paul Sutton and Ben Laurie] 10122 10123 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey 10124 BIT STRING wrapper always have zero unused bits. 10125 [Steve Henson] 10126 10127 *) Add CA.pl, perl version of CA.sh, add extended key usage OID. 10128 [Steve Henson] 10129 10130 *) Make the top-level INSTALL documentation easier to understand. 10131 [Paul Sutton] 10132 10133 *) Makefiles updated to exit if an error occurs in a sub-directory 10134 make (including if user presses ^C) [Paul Sutton] 10135 10136 *) Make Montgomery context stuff explicit in RSA data structure. 10137 [Ben Laurie] 10138 10139 *) Fix build order of pem and err to allow for generated pem.h. 10140 [Ben Laurie] 10141 10142 *) Fix renumbering bug in X509_NAME_delete_entry(). 10143 [Ben Laurie] 10144 10145 *) Enhanced the err-ins.pl script so it makes the error library number 10146 global and can add a library name. This is needed for external ASN1 and 10147 other error libraries. 10148 [Steve Henson] 10149 10150 *) Fixed sk_insert which never worked properly. 10151 [Steve Henson] 10152 10153 *) Fix ASN1 macros so they can handle indefinite length construted 10154 EXPLICIT tags. Some non standard certificates use these: they can now 10155 be read in. 10156 [Steve Henson] 10157 10158 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc) 10159 into a single doc/ssleay.txt bundle. This way the information is still 10160 preserved but no longer messes up this directory. Now it's new room for 10161 the new set of documenation files. 10162 [Ralf S. Engelschall] 10163 10164 *) SETs were incorrectly DER encoded. This was a major pain, because they 10165 shared code with SEQUENCEs, which aren't coded the same. This means that 10166 almost everything to do with SETs or SEQUENCEs has either changed name or 10167 number of arguments. 10168 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>] 10169 10170 *) Fix test data to work with the above. 10171 [Ben Laurie] 10172 10173 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but 10174 was already fixed by Eric for 0.9.1 it seems. 10175 [Ben Laurie - pointed out by Ulf M�ller <ulf@fitug.de>] 10176 10177 *) Autodetect FreeBSD3. 10178 [Ben Laurie] 10179 10180 *) Fix various bugs in Configure. This affects the following platforms: 10181 nextstep 10182 ncr-scde 10183 unixware-2.0 10184 unixware-2.0-pentium 10185 sco5-cc. 10186 [Ben Laurie] 10187 10188 *) Eliminate generated files from CVS. Reorder tests to regenerate files 10189 before they are needed. 10190 [Ben Laurie] 10191 10192 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy). 10193 [Ben Laurie] 10194 10195 10196 Changes between 0.9.1b and 0.9.1c [23-Dec-1998] 10197 10198 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and 10199 changed SSLeay to OpenSSL in version strings. 10200 [Ralf S. Engelschall] 10201 10202 *) Some fixups to the top-level documents. 10203 [Paul Sutton] 10204 10205 *) Fixed the nasty bug where rsaref.h was not found under compile-time 10206 because the symlink to include/ was missing. 10207 [Ralf S. Engelschall] 10208 10209 *) Incorporated the popular no-RSA/DSA-only patches 10210 which allow to compile a RSA-free SSLeay. 10211 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall] 10212 10213 *) Fixed nasty rehash problem under `make -f Makefile.ssl links' 10214 when "ssleay" is still not found. 10215 [Ralf S. Engelschall] 10216 10217 *) Added more platforms to Configure: Cray T3E, HPUX 11, 10218 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>] 10219 10220 *) Updated the README file. 10221 [Ralf S. Engelschall] 10222 10223 *) Added various .cvsignore files in the CVS repository subdirs 10224 to make a "cvs update" really silent. 10225 [Ralf S. Engelschall] 10226 10227 *) Recompiled the error-definition header files and added 10228 missing symbols to the Win32 linker tables. 10229 [Ralf S. Engelschall] 10230 10231 *) Cleaned up the top-level documents; 10232 o new files: CHANGES and LICENSE 10233 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay 10234 o merged COPYRIGHT into LICENSE 10235 o removed obsolete TODO file 10236 o renamed MICROSOFT to INSTALL.W32 10237 [Ralf S. Engelschall] 10238 10239 *) Removed dummy files from the 0.9.1b source tree: 10240 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi 10241 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f 10242 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f 10243 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f 10244 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f 10245 [Ralf S. Engelschall] 10246 10247 *) Added various platform portability fixes. 10248 [Mark J. Cox] 10249 10250 *) The Genesis of the OpenSSL rpject: 10251 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A. 10252 Young and Tim J. Hudson created while they were working for C2Net until 10253 summer 1998. 10254 [The OpenSSL Project] 10255 10256 10257 Changes between 0.9.0b and 0.9.1b [not released] 10258 10259 *) Updated a few CA certificates under certs/ 10260 [Eric A. Young] 10261 10262 *) Changed some BIGNUM api stuff. 10263 [Eric A. Young] 10264 10265 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD, 10266 DGUX x86, Linux Alpha, etc. 10267 [Eric A. Young] 10268 10269 *) New COMP library [crypto/comp/] for SSL Record Layer Compression: 10270 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is 10271 available). 10272 [Eric A. Young] 10273 10274 *) Add -strparse option to asn1pars program which parses nested 10275 binary structures 10276 [Dr Stephen Henson <shenson@bigfoot.com>] 10277 10278 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs. 10279 [Eric A. Young] 10280 10281 *) DSA fix for "ca" program. 10282 [Eric A. Young] 10283 10284 *) Added "-genkey" option to "dsaparam" program. 10285 [Eric A. Young] 10286 10287 *) Added RIPE MD160 (rmd160) message digest. 10288 [Eric A. Young] 10289 10290 *) Added -a (all) option to "ssleay version" command. 10291 [Eric A. Young] 10292 10293 *) Added PLATFORM define which is the id given to Configure. 10294 [Eric A. Young] 10295 10296 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking. 10297 [Eric A. Young] 10298 10299 *) Extended the ASN.1 parser routines. 10300 [Eric A. Young] 10301 10302 *) Extended BIO routines to support REUSEADDR, seek, tell, etc. 10303 [Eric A. Young] 10304 10305 *) Added a BN_CTX to the BN library. 10306 [Eric A. Young] 10307 10308 *) Fixed the weak key values in DES library 10309 [Eric A. Young] 10310 10311 *) Changed API in EVP library for cipher aliases. 10312 [Eric A. Young] 10313 10314 *) Added support for RC2/64bit cipher. 10315 [Eric A. Young] 10316 10317 *) Converted the lhash library to the crypto/mem.c functions. 10318 [Eric A. Young] 10319 10320 *) Added more recognized ASN.1 object ids. 10321 [Eric A. Young] 10322 10323 *) Added more RSA padding checks for SSL/TLS. 10324 [Eric A. Young] 10325 10326 *) Added BIO proxy/filter functionality. 10327 [Eric A. Young] 10328 10329 *) Added extra_certs to SSL_CTX which can be used 10330 send extra CA certificates to the client in the CA cert chain sending 10331 process. It can be configured with SSL_CTX_add_extra_chain_cert(). 10332 [Eric A. Young] 10333 10334 *) Now Fortezza is denied in the authentication phase because 10335 this is key exchange mechanism is not supported by SSLeay at all. 10336 [Eric A. Young] 10337 10338 *) Additional PKCS1 checks. 10339 [Eric A. Young] 10340 10341 *) Support the string "TLSv1" for all TLS v1 ciphers. 10342 [Eric A. Young] 10343 10344 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the 10345 ex_data index of the SSL context in the X509_STORE_CTX ex_data. 10346 [Eric A. Young] 10347 10348 *) Fixed a few memory leaks. 10349 [Eric A. Young] 10350 10351 *) Fixed various code and comment typos. 10352 [Eric A. Young] 10353 10354 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0 10355 bytes sent in the client random. 10356 [Edward Bishop <ebishop@spyglass.com>] 10357 10358