1 2 OpenSSL CHANGES 3 _______________ 4 5 Changes between 1.0.2c and 1.0.2d [9 Jul 2015] 6 7 *) Alternate chains certificate forgery 8 9 During certificate verfification, OpenSSL will attempt to find an 10 alternative certificate chain if the first attempt to build such a chain 11 fails. An error in the implementation of this logic can mean that an 12 attacker could cause certain checks on untrusted certificates to be 13 bypassed, such as the CA flag, enabling them to use a valid leaf 14 certificate to act as a CA and "issue" an invalid certificate. 15 16 This issue was reported to OpenSSL by Adam Langley/David Benjamin 17 (Google/BoringSSL). 18 [Matt Caswell] 19 20 Changes between 1.0.2b and 1.0.2c [12 Jun 2015] 21 22 *) Fix HMAC ABI incompatibility. The previous version introduced an ABI 23 incompatibility in the handling of HMAC. The previous ABI has now been 24 restored. 25 26 Changes between 1.0.2a and 1.0.2b [11 Jun 2015] 27 28 *) Malformed ECParameters causes infinite loop 29 30 When processing an ECParameters structure OpenSSL enters an infinite loop 31 if the curve specified is over a specially malformed binary polynomial 32 field. 33 34 This can be used to perform denial of service against any 35 system which processes public keys, certificate requests or 36 certificates. This includes TLS clients and TLS servers with 37 client authentication enabled. 38 39 This issue was reported to OpenSSL by Joseph Barr-Pixton. 40 (CVE-2015-1788) 41 [Andy Polyakov] 42 43 *) Exploitable out-of-bounds read in X509_cmp_time 44 45 X509_cmp_time does not properly check the length of the ASN1_TIME 46 string and can read a few bytes out of bounds. In addition, 47 X509_cmp_time accepts an arbitrary number of fractional seconds in the 48 time string. 49 50 An attacker can use this to craft malformed certificates and CRLs of 51 various sizes and potentially cause a segmentation fault, resulting in 52 a DoS on applications that verify certificates or CRLs. TLS clients 53 that verify CRLs are affected. TLS clients and servers with client 54 authentication enabled may be affected if they use custom verification 55 callbacks. 56 57 This issue was reported to OpenSSL by Robert Swiecki (Google), and 58 independently by Hanno B�ck. 59 (CVE-2015-1789) 60 [Emilia K�sper] 61 62 *) PKCS7 crash with missing EnvelopedContent 63 64 The PKCS#7 parsing code does not handle missing inner EncryptedContent 65 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs 66 with missing content and trigger a NULL pointer dereference on parsing. 67 68 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7 69 structures from untrusted sources are affected. OpenSSL clients and 70 servers are not affected. 71 72 This issue was reported to OpenSSL by Michal Zalewski (Google). 73 (CVE-2015-1790) 74 [Emilia K�sper] 75 76 *) CMS verify infinite loop with unknown hash function 77 78 When verifying a signedData message the CMS code can enter an infinite loop 79 if presented with an unknown hash function OID. This can be used to perform 80 denial of service against any system which verifies signedData messages using 81 the CMS code. 82 This issue was reported to OpenSSL by Johannes Bauer. 83 (CVE-2015-1792) 84 [Stephen Henson] 85 86 *) Race condition handling NewSessionTicket 87 88 If a NewSessionTicket is received by a multi-threaded client when attempting to 89 reuse a previous ticket then a race condition can occur potentially leading to 90 a double free of the ticket data. 91 (CVE-2015-1791) 92 [Matt Caswell] 93 94 *) Removed support for the two export grade static DH ciphersuites 95 EXP-DH-RSA-DES-CBC-SHA and EXP-DH-DSS-DES-CBC-SHA. These two ciphersuites 96 were newly added (along with a number of other static DH ciphersuites) to 97 1.0.2. However the two export ones have *never* worked since they were 98 introduced. It seems strange in any case to be adding new export 99 ciphersuites, and given "logjam" it also does not seem correct to fix them. 100 [Matt Caswell] 101 102 *) Only support 256-bit or stronger elliptic curves with the 103 'ecdh_auto' setting (server) or by default (client). Of supported 104 curves, prefer P-256 (both). 105 [Emilia Kasper] 106 107 *) Reject DH handshakes with parameters shorter than 768 bits. 108 [Kurt Roeckx and Emilia Kasper] 109 110 Changes between 1.0.2 and 1.0.2a [19 Mar 2015] 111 112 *) ClientHello sigalgs DoS fix 113 114 If a client connects to an OpenSSL 1.0.2 server and renegotiates with an 115 invalid signature algorithms extension a NULL pointer dereference will 116 occur. This can be exploited in a DoS attack against the server. 117 118 This issue was was reported to OpenSSL by David Ramos of Stanford 119 University. 120 (CVE-2015-0291) 121 [Stephen Henson and Matt Caswell] 122 123 *) Multiblock corrupted pointer fix 124 125 OpenSSL 1.0.2 introduced the "multiblock" performance improvement. This 126 feature only applies on 64 bit x86 architecture platforms that support AES 127 NI instructions. A defect in the implementation of "multiblock" can cause 128 OpenSSL's internal write buffer to become incorrectly set to NULL when 129 using non-blocking IO. Typically, when the user application is using a 130 socket BIO for writing, this will only result in a failed connection. 131 However if some other BIO is used then it is likely that a segmentation 132 fault will be triggered, thus enabling a potential DoS attack. 133 134 This issue was reported to OpenSSL by Daniel Danner and Rainer Mueller. 135 (CVE-2015-0290) 136 [Matt Caswell] 137 138 *) Segmentation fault in DTLSv1_listen fix 139 140 The DTLSv1_listen function is intended to be stateless and processes the 141 initial ClientHello from many peers. It is common for user code to loop 142 over the call to DTLSv1_listen until a valid ClientHello is received with 143 an associated cookie. A defect in the implementation of DTLSv1_listen means 144 that state is preserved in the SSL object from one invocation to the next 145 that can lead to a segmentation fault. Errors processing the initial 146 ClientHello can trigger this scenario. An example of such an error could be 147 that a DTLS1.0 only client is attempting to connect to a DTLS1.2 only 148 server. 149 150 This issue was reported to OpenSSL by Per Allansson. 151 (CVE-2015-0207) 152 [Matt Caswell] 153 154 *) Segmentation fault in ASN1_TYPE_cmp fix 155 156 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is 157 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check 158 certificate signature algorithm consistency this can be used to crash any 159 certificate verification operation and exploited in a DoS attack. Any 160 application which performs certificate verification is vulnerable including 161 OpenSSL clients and servers which enable client authentication. 162 (CVE-2015-0286) 163 [Stephen Henson] 164 165 *) Segmentation fault for invalid PSS parameters fix 166 167 The signature verification routines will crash with a NULL pointer 168 dereference if presented with an ASN.1 signature using the RSA PSS 169 algorithm and invalid parameters. Since these routines are used to verify 170 certificate signature algorithms this can be used to crash any 171 certificate verification operation and exploited in a DoS attack. Any 172 application which performs certificate verification is vulnerable including 173 OpenSSL clients and servers which enable client authentication. 174 175 This issue was was reported to OpenSSL by Brian Carpenter. 176 (CVE-2015-0208) 177 [Stephen Henson] 178 179 *) ASN.1 structure reuse memory corruption fix 180 181 Reusing a structure in ASN.1 parsing may allow an attacker to cause 182 memory corruption via an invalid write. Such reuse is and has been 183 strongly discouraged and is believed to be rare. 184 185 Applications that parse structures containing CHOICE or ANY DEFINED BY 186 components may be affected. Certificate parsing (d2i_X509 and related 187 functions) are however not affected. OpenSSL clients and servers are 188 not affected. 189 (CVE-2015-0287) 190 [Stephen Henson] 191 192 *) PKCS7 NULL pointer dereferences fix 193 194 The PKCS#7 parsing code does not handle missing outer ContentInfo 195 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with 196 missing content and trigger a NULL pointer dereference on parsing. 197 198 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or 199 otherwise parse PKCS#7 structures from untrusted sources are 200 affected. OpenSSL clients and servers are not affected. 201 202 This issue was reported to OpenSSL by Michal Zalewski (Google). 203 (CVE-2015-0289) 204 [Emilia K�sper] 205 206 *) DoS via reachable assert in SSLv2 servers fix 207 208 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in 209 servers that both support SSLv2 and enable export cipher suites by sending 210 a specially crafted SSLv2 CLIENT-MASTER-KEY message. 211 212 This issue was discovered by Sean Burford (Google) and Emilia K�sper 213 (OpenSSL development team). 214 (CVE-2015-0293) 215 [Emilia K�sper] 216 217 *) Empty CKE with client auth and DHE fix 218 219 If client auth is used then a server can seg fault in the event of a DHE 220 ciphersuite being selected and a zero length ClientKeyExchange message 221 being sent by the client. This could be exploited in a DoS attack. 222 (CVE-2015-1787) 223 [Matt Caswell] 224 225 *) Handshake with unseeded PRNG fix 226 227 Under certain conditions an OpenSSL 1.0.2 client can complete a handshake 228 with an unseeded PRNG. The conditions are: 229 - The client is on a platform where the PRNG has not been seeded 230 automatically, and the user has not seeded manually 231 - A protocol specific client method version has been used (i.e. not 232 SSL_client_methodv23) 233 - A ciphersuite is used that does not require additional random data from 234 the PRNG beyond the initial ClientHello client random (e.g. PSK-RC4-SHA). 235 236 If the handshake succeeds then the client random that has been used will 237 have been generated from a PRNG with insufficient entropy and therefore the 238 output may be predictable. 239 240 For example using the following command with an unseeded openssl will 241 succeed on an unpatched platform: 242 243 openssl s_client -psk 1a2b3c4d -tls1_2 -cipher PSK-RC4-SHA 244 (CVE-2015-0285) 245 [Matt Caswell] 246 247 *) Use After Free following d2i_ECPrivatekey error fix 248 249 A malformed EC private key file consumed via the d2i_ECPrivateKey function 250 could cause a use after free condition. This, in turn, could cause a double 251 free in several private key parsing functions (such as d2i_PrivateKey 252 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption 253 for applications that receive EC private keys from untrusted 254 sources. This scenario is considered rare. 255 256 This issue was discovered by the BoringSSL project and fixed in their 257 commit 517073cd4b. 258 (CVE-2015-0209) 259 [Matt Caswell] 260 261 *) X509_to_X509_REQ NULL pointer deref fix 262 263 The function X509_to_X509_REQ will crash with a NULL pointer dereference if 264 the certificate key is invalid. This function is rarely used in practice. 265 266 This issue was discovered by Brian Carpenter. 267 (CVE-2015-0288) 268 [Stephen Henson] 269 270 *) Removed the export ciphers from the DEFAULT ciphers 271 [Kurt Roeckx] 272 273 Changes between 1.0.1l and 1.0.2 [22 Jan 2015] 274 275 *) Facilitate "universal" ARM builds targeting range of ARM ISAs, e.g. 276 ARMv5 through ARMv8, as opposite to "locking" it to single one. 277 So far those who have to target multiple plaforms would compromise 278 and argue that binary targeting say ARMv5 would still execute on 279 ARMv8. "Universal" build resolves this compromise by providing 280 near-optimal performance even on newer platforms. 281 [Andy Polyakov] 282 283 *) Accelerated NIST P-256 elliptic curve implementation for x86_64 284 (other platforms pending). 285 [Shay Gueron & Vlad Krasnov (Intel Corp), Andy Polyakov] 286 287 *) Add support for the SignedCertificateTimestampList certificate and 288 OCSP response extensions from RFC6962. 289 [Rob Stradling] 290 291 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) 292 for corner cases. (Certain input points at infinity could lead to 293 bogus results, with non-infinity inputs mapped to infinity too.) 294 [Bodo Moeller] 295 296 *) Initial support for PowerISA 2.0.7, first implemented in POWER8. 297 This covers AES, SHA256/512 and GHASH. "Initial" means that most 298 common cases are optimized and there still is room for further 299 improvements. Vector Permutation AES for Altivec is also added. 300 [Andy Polyakov] 301 302 *) Add support for little-endian ppc64 Linux target. 303 [Marcelo Cerri (IBM)] 304 305 *) Initial support for AMRv8 ISA crypto extensions. This covers AES, 306 SHA1, SHA256 and GHASH. "Initial" means that most common cases 307 are optimized and there still is room for further improvements. 308 Both 32- and 64-bit modes are supported. 309 [Andy Polyakov, Ard Biesheuvel (Linaro)] 310 311 *) Improved ARMv7 NEON support. 312 [Andy Polyakov] 313 314 *) Support for SPARC Architecture 2011 crypto extensions, first 315 implemented in SPARC T4. This covers AES, DES, Camellia, SHA1, 316 SHA256/512, MD5, GHASH and modular exponentiation. 317 [Andy Polyakov, David Miller] 318 319 *) Accelerated modular exponentiation for Intel processors, a.k.a. 320 RSAZ. 321 [Shay Gueron & Vlad Krasnov (Intel Corp)] 322 323 *) Support for new and upcoming Intel processors, including AVX2, 324 BMI and SHA ISA extensions. This includes additional "stitched" 325 implementations, AESNI-SHA256 and GCM, and multi-buffer support 326 for TLS encrypt. 327 328 This work was sponsored by Intel Corp. 329 [Andy Polyakov] 330 331 *) Support for DTLS 1.2. This adds two sets of DTLS methods: DTLS_*_method() 332 supports both DTLS 1.2 and 1.0 and should use whatever version the peer 333 supports and DTLSv1_2_*_method() which supports DTLS 1.2 only. 334 [Steve Henson] 335 336 *) Use algorithm specific chains in SSL_CTX_use_certificate_chain_file(): 337 this fixes a limiation in previous versions of OpenSSL. 338 [Steve Henson] 339 340 *) Extended RSA OAEP support via EVP_PKEY API. Options to specify digest, 341 MGF1 digest and OAEP label. 342 [Steve Henson] 343 344 *) Add EVP support for key wrapping algorithms, to avoid problems with 345 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in 346 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap 347 algorithms and include tests cases. 348 [Steve Henson] 349 350 *) Add functions to allocate and set the fields of an ECDSA_METHOD 351 structure. 352 [Douglas E. Engert, Steve Henson] 353 354 *) New functions OPENSSL_gmtime_diff and ASN1_TIME_diff to find the 355 difference in days and seconds between two tm or ASN1_TIME structures. 356 [Steve Henson] 357 358 *) Add -rev test option to s_server to just reverse order of characters 359 received by client and send back to server. Also prints an abbreviated 360 summary of the connection parameters. 361 [Steve Henson] 362 363 *) New option -brief for s_client and s_server to print out a brief summary 364 of connection parameters. 365 [Steve Henson] 366 367 *) Add callbacks for arbitrary TLS extensions. 368 [Trevor Perrin <trevp@trevp.net> and Ben Laurie] 369 370 *) New option -crl_download in several openssl utilities to download CRLs 371 from CRLDP extension in certificates. 372 [Steve Henson] 373 374 *) New options -CRL and -CRLform for s_client and s_server for CRLs. 375 [Steve Henson] 376 377 *) New function X509_CRL_diff to generate a delta CRL from the difference 378 of two full CRLs. Add support to "crl" utility. 379 [Steve Henson] 380 381 *) New functions to set lookup_crls function and to retrieve 382 X509_STORE from X509_STORE_CTX. 383 [Steve Henson] 384 385 *) Print out deprecated issuer and subject unique ID fields in 386 certificates. 387 [Steve Henson] 388 389 *) Extend OCSP I/O functions so they can be used for simple general purpose 390 HTTP as well as OCSP. New wrapper function which can be used to download 391 CRLs using the OCSP API. 392 [Steve Henson] 393 394 *) Delegate command line handling in s_client/s_server to SSL_CONF APIs. 395 [Steve Henson] 396 397 *) SSL_CONF* functions. These provide a common framework for application 398 configuration using configuration files or command lines. 399 [Steve Henson] 400 401 *) SSL/TLS tracing code. This parses out SSL/TLS records using the 402 message callback and prints the results. Needs compile time option 403 "enable-ssl-trace". New options to s_client and s_server to enable 404 tracing. 405 [Steve Henson] 406 407 *) New ctrl and macro to retrieve supported points extensions. 408 Print out extension in s_server and s_client. 409 [Steve Henson] 410 411 *) New functions to retrieve certificate signature and signature 412 OID NID. 413 [Steve Henson] 414 415 *) Add functions to retrieve and manipulate the raw cipherlist sent by a 416 client to OpenSSL. 417 [Steve Henson] 418 419 *) New Suite B modes for TLS code. These use and enforce the requirements 420 of RFC6460: restrict ciphersuites, only permit Suite B algorithms and 421 only use Suite B curves. The Suite B modes can be set by using the 422 strings "SUITEB128", "SUITEB192" or "SUITEB128ONLY" for the cipherstring. 423 [Steve Henson] 424 425 *) New chain verification flags for Suite B levels of security. Check 426 algorithms are acceptable when flags are set in X509_verify_cert. 427 [Steve Henson] 428 429 *) Make tls1_check_chain return a set of flags indicating checks passed 430 by a certificate chain. Add additional tests to handle client 431 certificates: checks for matching certificate type and issuer name 432 comparison. 433 [Steve Henson] 434 435 *) If an attempt is made to use a signature algorithm not in the peer 436 preference list abort the handshake. If client has no suitable 437 signature algorithms in response to a certificate request do not 438 use the certificate. 439 [Steve Henson] 440 441 *) If server EC tmp key is not in client preference list abort handshake. 442 [Steve Henson] 443 444 *) Add support for certificate stores in CERT structure. This makes it 445 possible to have different stores per SSL structure or one store in 446 the parent SSL_CTX. Include distint stores for certificate chain 447 verification and chain building. New ctrl SSL_CTRL_BUILD_CERT_CHAIN 448 to build and store a certificate chain in CERT structure: returing 449 an error if the chain cannot be built: this will allow applications 450 to test if a chain is correctly configured. 451 452 Note: if the CERT based stores are not set then the parent SSL_CTX 453 store is used to retain compatibility with existing behaviour. 454 455 [Steve Henson] 456 457 *) New function ssl_set_client_disabled to set a ciphersuite disabled 458 mask based on the current session, check mask when sending client 459 hello and checking the requested ciphersuite. 460 [Steve Henson] 461 462 *) New ctrls to retrieve and set certificate types in a certificate 463 request message. Print out received values in s_client. If certificate 464 types is not set with custom values set sensible values based on 465 supported signature algorithms. 466 [Steve Henson] 467 468 *) Support for distinct client and server supported signature algorithms. 469 [Steve Henson] 470 471 *) Add certificate callback. If set this is called whenever a certificate 472 is required by client or server. An application can decide which 473 certificate chain to present based on arbitrary criteria: for example 474 supported signature algorithms. Add very simple example to s_server. 475 This fixes many of the problems and restrictions of the existing client 476 certificate callback: for example you can now clear an existing 477 certificate and specify the whole chain. 478 [Steve Henson] 479 480 *) Add new "valid_flags" field to CERT_PKEY structure which determines what 481 the certificate can be used for (if anything). Set valid_flags field 482 in new tls1_check_chain function. Simplify ssl_set_cert_masks which used 483 to have similar checks in it. 484 485 Add new "cert_flags" field to CERT structure and include a "strict mode". 486 This enforces some TLS certificate requirements (such as only permitting 487 certificate signature algorithms contained in the supported algorithms 488 extension) which some implementations ignore: this option should be used 489 with caution as it could cause interoperability issues. 490 [Steve Henson] 491 492 *) Update and tidy signature algorithm extension processing. Work out 493 shared signature algorithms based on preferences and peer algorithms 494 and print them out in s_client and s_server. Abort handshake if no 495 shared signature algorithms. 496 [Steve Henson] 497 498 *) Add new functions to allow customised supported signature algorithms 499 for SSL and SSL_CTX structures. Add options to s_client and s_server 500 to support them. 501 [Steve Henson] 502 503 *) New function SSL_certs_clear() to delete all references to certificates 504 from an SSL structure. Before this once a certificate had been added 505 it couldn't be removed. 506 [Steve Henson] 507 508 *) Integrate hostname, email address and IP address checking with certificate 509 verification. New verify options supporting checking in opensl utility. 510 [Steve Henson] 511 512 *) Fixes and wildcard matching support to hostname and email checking 513 functions. Add manual page. 514 [Florian Weimer (Red Hat Product Security Team)] 515 516 *) New functions to check a hostname email or IP address against a 517 certificate. Add options x509 utility to print results of checks against 518 a certificate. 519 [Steve Henson] 520 521 *) Fix OCSP checking. 522 [Rob Stradling <rob.stradling@comodo.com> and Ben Laurie] 523 524 *) Initial experimental support for explicitly trusted non-root CAs. 525 OpenSSL still tries to build a complete chain to a root but if an 526 intermediate CA has a trust setting included that is used. The first 527 setting is used: whether to trust (e.g., -addtrust option to the x509 528 utility) or reject. 529 [Steve Henson] 530 531 *) Add -trusted_first option which attempts to find certificates in the 532 trusted store even if an untrusted chain is also supplied. 533 [Steve Henson] 534 535 *) MIPS assembly pack updates: support for MIPS32r2 and SmartMIPS ASE, 536 platform support for Linux and Android. 537 [Andy Polyakov] 538 539 *) Support for linux-x32, ILP32 environment in x86_64 framework. 540 [Andy Polyakov] 541 542 *) Experimental multi-implementation support for FIPS capable OpenSSL. 543 When in FIPS mode the approved implementations are used as normal, 544 when not in FIPS mode the internal unapproved versions are used instead. 545 This means that the FIPS capable OpenSSL isn't forced to use the 546 (often lower perfomance) FIPS implementations outside FIPS mode. 547 [Steve Henson] 548 549 *) Transparently support X9.42 DH parameters when calling 550 PEM_read_bio_DHparameters. This means existing applications can handle 551 the new parameter format automatically. 552 [Steve Henson] 553 554 *) Initial experimental support for X9.42 DH parameter format: mainly 555 to support use of 'q' parameter for RFC5114 parameters. 556 [Steve Henson] 557 558 *) Add DH parameters from RFC5114 including test data to dhtest. 559 [Steve Henson] 560 561 *) Support for automatic EC temporary key parameter selection. If enabled 562 the most preferred EC parameters are automatically used instead of 563 hardcoded fixed parameters. Now a server just has to call: 564 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically 565 support ECDH and use the most appropriate parameters. 566 [Steve Henson] 567 568 *) Enhance and tidy EC curve and point format TLS extension code. Use 569 static structures instead of allocation if default values are used. 570 New ctrls to set curves we wish to support and to retrieve shared curves. 571 Print out shared curves in s_server. New options to s_server and s_client 572 to set list of supported curves. 573 [Steve Henson] 574 575 *) New ctrls to retrieve supported signature algorithms and 576 supported curve values as an array of NIDs. Extend openssl utility 577 to print out received values. 578 [Steve Henson] 579 580 *) Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert 581 between NIDs and the more common NIST names such as "P-256". Enhance 582 ecparam utility and ECC method to recognise the NIST names for curves. 583 [Steve Henson] 584 585 *) Enhance SSL/TLS certificate chain handling to support different 586 chains for each certificate instead of one chain in the parent SSL_CTX. 587 [Steve Henson] 588 589 *) Support for fixed DH ciphersuite client authentication: where both 590 server and client use DH certificates with common parameters. 591 [Steve Henson] 592 593 *) Support for fixed DH ciphersuites: those requiring DH server 594 certificates. 595 [Steve Henson] 596 597 *) New function i2d_re_X509_tbs for re-encoding the TBS portion of 598 the certificate. 599 Note: Related 1.0.2-beta specific macros X509_get_cert_info, 600 X509_CINF_set_modified, X509_CINF_get_issuer, X509_CINF_get_extensions and 601 X509_CINF_get_signature were reverted post internal team review. 602 603 Changes between 1.0.1k and 1.0.1l [15 Jan 2015] 604 605 *) Build fixes for the Windows and OpenVMS platforms 606 [Matt Caswell and Richard Levitte] 607 608 Changes between 1.0.1j and 1.0.1k [8 Jan 2015] 609 610 *) Fix DTLS segmentation fault in dtls1_get_record. A carefully crafted DTLS 611 message can cause a segmentation fault in OpenSSL due to a NULL pointer 612 dereference. This could lead to a Denial Of Service attack. Thanks to 613 Markus Stenberg of Cisco Systems, Inc. for reporting this issue. 614 (CVE-2014-3571) 615 [Steve Henson] 616 617 *) Fix DTLS memory leak in dtls1_buffer_record. A memory leak can occur in the 618 dtls1_buffer_record function under certain conditions. In particular this 619 could occur if an attacker sent repeated DTLS records with the same 620 sequence number but for the next epoch. The memory leak could be exploited 621 by an attacker in a Denial of Service attack through memory exhaustion. 622 Thanks to Chris Mueller for reporting this issue. 623 (CVE-2015-0206) 624 [Matt Caswell] 625 626 *) Fix issue where no-ssl3 configuration sets method to NULL. When openssl is 627 built with the no-ssl3 option and a SSL v3 ClientHello is received the ssl 628 method would be set to NULL which could later result in a NULL pointer 629 dereference. Thanks to Frank Schmirler for reporting this issue. 630 (CVE-2014-3569) 631 [Kurt Roeckx] 632 633 *) Abort handshake if server key exchange message is omitted for ephemeral 634 ECDH ciphersuites. 635 636 Thanks to Karthikeyan Bhargavan of the PROSECCO team at INRIA for 637 reporting this issue. 638 (CVE-2014-3572) 639 [Steve Henson] 640 641 *) Remove non-export ephemeral RSA code on client and server. This code 642 violated the TLS standard by allowing the use of temporary RSA keys in 643 non-export ciphersuites and could be used by a server to effectively 644 downgrade the RSA key length used to a value smaller than the server 645 certificate. Thanks for Karthikeyan Bhargavan of the PROSECCO team at 646 INRIA or reporting this issue. 647 (CVE-2015-0204) 648 [Steve Henson] 649 650 *) Fixed issue where DH client certificates are accepted without verification. 651 An OpenSSL server will accept a DH certificate for client authentication 652 without the certificate verify message. This effectively allows a client to 653 authenticate without the use of a private key. This only affects servers 654 which trust a client certificate authority which issues certificates 655 containing DH keys: these are extremely rare and hardly ever encountered. 656 Thanks for Karthikeyan Bhargavan of the PROSECCO team at INRIA or reporting 657 this issue. 658 (CVE-2015-0205) 659 [Steve Henson] 660 661 *) Ensure that the session ID context of an SSL is updated when its 662 SSL_CTX is updated via SSL_set_SSL_CTX. 663 664 The session ID context is typically set from the parent SSL_CTX, 665 and can vary with the CTX. 666 [Adam Langley] 667 668 *) Fix various certificate fingerprint issues. 669 670 By using non-DER or invalid encodings outside the signed portion of a 671 certificate the fingerprint can be changed without breaking the signature. 672 Although no details of the signed portion of the certificate can be changed 673 this can cause problems with some applications: e.g. those using the 674 certificate fingerprint for blacklists. 675 676 1. Reject signatures with non zero unused bits. 677 678 If the BIT STRING containing the signature has non zero unused bits reject 679 the signature. All current signature algorithms require zero unused bits. 680 681 2. Check certificate algorithm consistency. 682 683 Check the AlgorithmIdentifier inside TBS matches the one in the 684 certificate signature. NB: this will result in signature failure 685 errors for some broken certificates. 686 687 Thanks to Konrad Kraszewski from Google for reporting this issue. 688 689 3. Check DSA/ECDSA signatures use DER. 690 691 Reencode DSA/ECDSA signatures and compare with the original received 692 signature. Return an error if there is a mismatch. 693 694 This will reject various cases including garbage after signature 695 (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS 696 program for discovering this case) and use of BER or invalid ASN.1 INTEGERs 697 (negative or with leading zeroes). 698 699 Further analysis was conducted and fixes were developed by Stephen Henson 700 of the OpenSSL core team. 701 702 (CVE-2014-8275) 703 [Steve Henson] 704 705 *) Correct Bignum squaring. Bignum squaring (BN_sqr) may produce incorrect 706 results on some platforms, including x86_64. This bug occurs at random 707 with a very low probability, and is not known to be exploitable in any 708 way, though its exact impact is difficult to determine. Thanks to Pieter 709 Wuille (Blockstream) who reported this issue and also suggested an initial 710 fix. Further analysis was conducted by the OpenSSL development team and 711 Adam Langley of Google. The final fix was developed by Andy Polyakov of 712 the OpenSSL core team. 713 (CVE-2014-3570) 714 [Andy Polyakov] 715 716 *) Do not resume sessions on the server if the negotiated protocol 717 version does not match the session's version. Resuming with a different 718 version, while not strictly forbidden by the RFC, is of questionable 719 sanity and breaks all known clients. 720 [David Benjamin, Emilia K�sper] 721 722 *) Tighten handling of the ChangeCipherSpec (CCS) message: reject 723 early CCS messages during renegotiation. (Note that because 724 renegotiation is encrypted, this early CCS was not exploitable.) 725 [Emilia K�sper] 726 727 *) Tighten client-side session ticket handling during renegotiation: 728 ensure that the client only accepts a session ticket if the server sends 729 the extension anew in the ServerHello. Previously, a TLS client would 730 reuse the old extension state and thus accept a session ticket if one was 731 announced in the initial ServerHello. 732 733 Similarly, ensure that the client requires a session ticket if one 734 was advertised in the ServerHello. Previously, a TLS client would 735 ignore a missing NewSessionTicket message. 736 [Emilia K�sper] 737 738 Changes between 1.0.1i and 1.0.1j [15 Oct 2014] 739 740 *) SRTP Memory Leak. 741 742 A flaw in the DTLS SRTP extension parsing code allows an attacker, who 743 sends a carefully crafted handshake message, to cause OpenSSL to fail 744 to free up to 64k of memory causing a memory leak. This could be 745 exploited in a Denial Of Service attack. This issue affects OpenSSL 746 1.0.1 server implementations for both SSL/TLS and DTLS regardless of 747 whether SRTP is used or configured. Implementations of OpenSSL that 748 have been compiled with OPENSSL_NO_SRTP defined are not affected. 749 750 The fix was developed by the OpenSSL team. 751 (CVE-2014-3513) 752 [OpenSSL team] 753 754 *) Session Ticket Memory Leak. 755 756 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the 757 integrity of that ticket is first verified. In the event of a session 758 ticket integrity check failing, OpenSSL will fail to free memory 759 causing a memory leak. By sending a large number of invalid session 760 tickets an attacker could exploit this issue in a Denial Of Service 761 attack. 762 (CVE-2014-3567) 763 [Steve Henson] 764 765 *) Build option no-ssl3 is incomplete. 766 767 When OpenSSL is configured with "no-ssl3" as a build option, servers 768 could accept and complete a SSL 3.0 handshake, and clients could be 769 configured to send them. 770 (CVE-2014-3568) 771 [Akamai and the OpenSSL team] 772 773 *) Add support for TLS_FALLBACK_SCSV. 774 Client applications doing fallback retries should call 775 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV). 776 (CVE-2014-3566) 777 [Adam Langley, Bodo Moeller] 778 779 *) Add additional DigestInfo checks. 780 781 Reencode DigestInto in DER and check against the original when 782 verifying RSA signature: this will reject any improperly encoded 783 DigestInfo structures. 784 785 Note: this is a precautionary measure and no attacks are currently known. 786 787 [Steve Henson] 788 789 Changes between 1.0.1h and 1.0.1i [6 Aug 2014] 790 791 *) Fix SRP buffer overrun vulnerability. Invalid parameters passed to the 792 SRP code can be overrun an internal buffer. Add sanity check that 793 g, A, B < N to SRP code. 794 795 Thanks to Sean Devlin and Watson Ladd of Cryptography Services, NCC 796 Group for discovering this issue. 797 (CVE-2014-3512) 798 [Steve Henson] 799 800 *) A flaw in the OpenSSL SSL/TLS server code causes the server to negotiate 801 TLS 1.0 instead of higher protocol versions when the ClientHello message 802 is badly fragmented. This allows a man-in-the-middle attacker to force a 803 downgrade to TLS 1.0 even if both the server and the client support a 804 higher protocol version, by modifying the client's TLS records. 805 806 Thanks to David Benjamin and Adam Langley (Google) for discovering and 807 researching this issue. 808 (CVE-2014-3511) 809 [David Benjamin] 810 811 *) OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject 812 to a denial of service attack. A malicious server can crash the client 813 with a null pointer dereference (read) by specifying an anonymous (EC)DH 814 ciphersuite and sending carefully crafted handshake messages. 815 816 Thanks to Felix Gr�bert (Google) for discovering and researching this 817 issue. 818 (CVE-2014-3510) 819 [Emilia K�sper] 820 821 *) By sending carefully crafted DTLS packets an attacker could cause openssl 822 to leak memory. This can be exploited through a Denial of Service attack. 823 Thanks to Adam Langley for discovering and researching this issue. 824 (CVE-2014-3507) 825 [Adam Langley] 826 827 *) An attacker can force openssl to consume large amounts of memory whilst 828 processing DTLS handshake messages. This can be exploited through a 829 Denial of Service attack. 830 Thanks to Adam Langley for discovering and researching this issue. 831 (CVE-2014-3506) 832 [Adam Langley] 833 834 *) An attacker can force an error condition which causes openssl to crash 835 whilst processing DTLS packets due to memory being freed twice. This 836 can be exploited through a Denial of Service attack. 837 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching 838 this issue. 839 (CVE-2014-3505) 840 [Adam Langley] 841 842 *) If a multithreaded client connects to a malicious server using a resumed 843 session and the server sends an ec point format extension it could write 844 up to 255 bytes to freed memory. 845 846 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this 847 issue. 848 (CVE-2014-3509) 849 [Gabor Tyukasz] 850 851 *) A malicious server can crash an OpenSSL client with a null pointer 852 dereference (read) by specifying an SRP ciphersuite even though it was not 853 properly negotiated with the client. This can be exploited through a 854 Denial of Service attack. 855 856 Thanks to Joonas Kuorilehto and Riku Hietam�ki (Codenomicon) for 857 discovering and researching this issue. 858 (CVE-2014-5139) 859 [Steve Henson] 860 861 *) A flaw in OBJ_obj2txt may cause pretty printing functions such as 862 X509_name_oneline, X509_name_print_ex et al. to leak some information 863 from the stack. Applications may be affected if they echo pretty printing 864 output to the attacker. 865 866 Thanks to Ivan Fratric (Google) for discovering this issue. 867 (CVE-2014-3508) 868 [Emilia K�sper, and Steve Henson] 869 870 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.) 871 for corner cases. (Certain input points at infinity could lead to 872 bogus results, with non-infinity inputs mapped to infinity too.) 873 [Bodo Moeller] 874 875 Changes between 1.0.1g and 1.0.1h [5 Jun 2014] 876 877 *) Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted 878 handshake can force the use of weak keying material in OpenSSL 879 SSL/TLS clients and servers. 880 881 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and 882 researching this issue. (CVE-2014-0224) 883 [KIKUCHI Masashi, Steve Henson] 884 885 *) Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an 886 OpenSSL DTLS client the code can be made to recurse eventually crashing 887 in a DoS attack. 888 889 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue. 890 (CVE-2014-0221) 891 [Imre Rad, Steve Henson] 892 893 *) Fix DTLS invalid fragment vulnerability. A buffer overrun attack can 894 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS 895 client or server. This is potentially exploitable to run arbitrary 896 code on a vulnerable client or server. 897 898 Thanks to J�ri Aedla for reporting this issue. (CVE-2014-0195) 899 [J�ri Aedla, Steve Henson] 900 901 *) Fix bug in TLS code where clients enable anonymous ECDH ciphersuites 902 are subject to a denial of service attack. 903 904 Thanks to Felix Gr�bert and Ivan Fratric at Google for discovering 905 this issue. (CVE-2014-3470) 906 [Felix Gr�bert, Ivan Fratric, Steve Henson] 907 908 *) Harmonize version and its documentation. -f flag is used to display 909 compilation flags. 910 [mancha <mancha1@zoho.com>] 911 912 *) Fix eckey_priv_encode so it immediately returns an error upon a failure 913 in i2d_ECPrivateKey. 914 [mancha <mancha1@zoho.com>] 915 916 *) Fix some double frees. These are not thought to be exploitable. 917 [mancha <mancha1@zoho.com>] 918 919 Changes between 1.0.1f and 1.0.1g [7 Apr 2014] 920 921 *) A missing bounds check in the handling of the TLS heartbeat extension 922 can be used to reveal up to 64k of memory to a connected client or 923 server. 924 925 Thanks for Neel Mehta of Google Security for discovering this bug and to 926 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for 927 preparing the fix (CVE-2014-0160) 928 [Adam Langley, Bodo Moeller] 929 930 *) Fix for the attack described in the paper "Recovering OpenSSL 931 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack" 932 by Yuval Yarom and Naomi Benger. Details can be obtained from: 933 http://eprint.iacr.org/2014/140 934 935 Thanks to Yuval Yarom and Naomi Benger for discovering this 936 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076) 937 [Yuval Yarom and Naomi Benger] 938 939 *) TLS pad extension: draft-agl-tls-padding-03 940 941 Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the 942 TLS client Hello record length value would otherwise be > 255 and 943 less that 512 pad with a dummy extension containing zeroes so it 944 is at least 512 bytes long. 945 946 [Adam Langley, Steve Henson] 947 948 Changes between 1.0.1e and 1.0.1f [6 Jan 2014] 949 950 *) Fix for TLS record tampering bug. A carefully crafted invalid 951 handshake could crash OpenSSL with a NULL pointer exception. 952 Thanks to Anton Johansson for reporting this issues. 953 (CVE-2013-4353) 954 955 *) Keep original DTLS digest and encryption contexts in retransmission 956 structures so we can use the previous session parameters if they need 957 to be resent. (CVE-2013-6450) 958 [Steve Henson] 959 960 *) Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which 961 avoids preferring ECDHE-ECDSA ciphers when the client appears to be 962 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for 963 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug 964 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing 965 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer. 966 [Rob Stradling, Adam Langley] 967 968 Changes between 1.0.1d and 1.0.1e [11 Feb 2013] 969 970 *) Correct fix for CVE-2013-0169. The original didn't work on AES-NI 971 supporting platforms or when small records were transferred. 972 [Andy Polyakov, Steve Henson] 973 974 Changes between 1.0.1c and 1.0.1d [5 Feb 2013] 975 976 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time. 977 978 This addresses the flaw in CBC record processing discovered by 979 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found 980 at: http://www.isg.rhul.ac.uk/tls/ 981 982 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 983 Security Group at Royal Holloway, University of London 984 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and 985 Emilia K�sper for the initial patch. 986 (CVE-2013-0169) 987 [Emilia K�sper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson] 988 989 *) Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode 990 ciphersuites which can be exploited in a denial of service attack. 991 Thanks go to and to Adam Langley <agl@chromium.org> for discovering 992 and detecting this bug and to Wolfgang Ettlinger 993 <wolfgang.ettlinger@gmail.com> for independently discovering this issue. 994 (CVE-2012-2686) 995 [Adam Langley] 996 997 *) Return an error when checking OCSP signatures when key is NULL. 998 This fixes a DoS attack. (CVE-2013-0166) 999 [Steve Henson] 1000 1001 *) Make openssl verify return errors. 1002 [Chris Palmer <palmer@google.com> and Ben Laurie] 1003 1004 *) Call OCSP Stapling callback after ciphersuite has been chosen, so 1005 the right response is stapled. Also change SSL_get_certificate() 1006 so it returns the certificate actually sent. 1007 See http://rt.openssl.org/Ticket/Display.html?id=2836. 1008 [Rob Stradling <rob.stradling@comodo.com>] 1009 1010 *) Fix possible deadlock when decoding public keys. 1011 [Steve Henson] 1012 1013 *) Don't use TLS 1.0 record version number in initial client hello 1014 if renegotiating. 1015 [Steve Henson] 1016 1017 Changes between 1.0.1b and 1.0.1c [10 May 2012] 1018 1019 *) Sanity check record length before skipping explicit IV in TLS 1020 1.2, 1.1 and DTLS to fix DoS attack. 1021 1022 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic 1023 fuzzing as a service testing platform. 1024 (CVE-2012-2333) 1025 [Steve Henson] 1026 1027 *) Initialise tkeylen properly when encrypting CMS messages. 1028 Thanks to Solar Designer of Openwall for reporting this issue. 1029 [Steve Henson] 1030 1031 *) In FIPS mode don't try to use composite ciphers as they are not 1032 approved. 1033 [Steve Henson] 1034 1035 Changes between 1.0.1a and 1.0.1b [26 Apr 2012] 1036 1037 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and 1038 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately 1039 mean any application compiled against OpenSSL 1.0.0 headers setting 1040 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng 1041 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to 1042 0x10000000L Any application which was previously compiled against 1043 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1 1044 will need to be recompiled as a result. Letting be results in 1045 inability to disable specifically TLS 1.1 and in client context, 1046 in unlike event, limit maximum offered version to TLS 1.0 [see below]. 1047 [Steve Henson] 1048 1049 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not 1050 disable just protocol X, but all protocols above X *if* there are 1051 protocols *below* X still enabled. In more practical terms it means 1052 that if application wants to disable TLS1.0 in favor of TLS1.1 and 1053 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass 1054 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to 1055 client side. 1056 [Andy Polyakov] 1057 1058 Changes between 1.0.1 and 1.0.1a [19 Apr 2012] 1059 1060 *) Check for potentially exploitable overflows in asn1_d2i_read_bio 1061 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer 1062 in CRYPTO_realloc_clean. 1063 1064 Thanks to Tavis Ormandy, Google Security Team, for discovering this 1065 issue and to Adam Langley <agl@chromium.org> for fixing it. 1066 (CVE-2012-2110) 1067 [Adam Langley (Google), Tavis Ormandy, Google Security Team] 1068 1069 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections. 1070 [Adam Langley] 1071 1072 *) Workarounds for some broken servers that "hang" if a client hello 1073 record length exceeds 255 bytes. 1074 1075 1. Do not use record version number > TLS 1.0 in initial client 1076 hello: some (but not all) hanging servers will now work. 1077 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate 1078 the number of ciphers sent in the client hello. This should be 1079 set to an even number, such as 50, for example by passing: 1080 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure. 1081 Most broken servers should now work. 1082 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable 1083 TLS 1.2 client support entirely. 1084 [Steve Henson] 1085 1086 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH. 1087 [Andy Polyakov] 1088 1089 Changes between 1.0.0h and 1.0.1 [14 Mar 2012] 1090 1091 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET 1092 STRING form instead of a DigestInfo. 1093 [Steve Henson] 1094 1095 *) The format used for MDC2 RSA signatures is inconsistent between EVP 1096 and the RSA_sign/RSA_verify functions. This was made more apparent when 1097 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular 1098 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect 1099 the correct format in RSA_verify so both forms transparently work. 1100 [Steve Henson] 1101 1102 *) Some servers which support TLS 1.0 can choke if we initially indicate 1103 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA 1104 encrypted premaster secret. As a workaround use the maximum pemitted 1105 client version in client hello, this should keep such servers happy 1106 and still work with previous versions of OpenSSL. 1107 [Steve Henson] 1108 1109 *) Add support for TLS/DTLS heartbeats. 1110 [Robin Seggelmann <seggelmann@fh-muenster.de>] 1111 1112 *) Add support for SCTP. 1113 [Robin Seggelmann <seggelmann@fh-muenster.de>] 1114 1115 *) Improved PRNG seeding for VOS. 1116 [Paul Green <Paul.Green@stratus.com>] 1117 1118 *) Extensive assembler packs updates, most notably: 1119 1120 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support; 1121 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES); 1122 - x86_64: bit-sliced AES implementation; 1123 - ARM: NEON support, contemporary platforms optimizations; 1124 - s390x: z196 support; 1125 - *: GHASH and GF(2^m) multiplication implementations; 1126 1127 [Andy Polyakov] 1128 1129 *) Make TLS-SRP code conformant with RFC 5054 API cleanup 1130 (removal of unnecessary code) 1131 [Peter Sylvester <peter.sylvester@edelweb.fr>] 1132 1133 *) Add TLS key material exporter from RFC 5705. 1134 [Eric Rescorla] 1135 1136 *) Add DTLS-SRTP negotiation from RFC 5764. 1137 [Eric Rescorla] 1138 1139 *) Add Next Protocol Negotiation, 1140 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be 1141 disabled with a no-npn flag to config or Configure. Code donated 1142 by Google. 1143 [Adam Langley <agl@google.com> and Ben Laurie] 1144 1145 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224, 1146 NIST-P256, NIST-P521, with constant-time single point multiplication on 1147 typical inputs. Compiler support for the nonstandard type __uint128_t is 1148 required to use this (present in gcc 4.4 and later, for 64-bit builds). 1149 Code made available under Apache License version 2.0. 1150 1151 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command 1152 line to include this in your build of OpenSSL, and run "make depend" (or 1153 "make update"). This enables the following EC_METHODs: 1154 1155 EC_GFp_nistp224_method() 1156 EC_GFp_nistp256_method() 1157 EC_GFp_nistp521_method() 1158 1159 EC_GROUP_new_by_curve_name() will automatically use these (while 1160 EC_GROUP_new_curve_GFp() currently prefers the more flexible 1161 implementations). 1162 [Emilia K�sper, Adam Langley, Bodo Moeller (Google)] 1163 1164 *) Use type ossl_ssize_t instad of ssize_t which isn't available on 1165 all platforms. Move ssize_t definition from e_os.h to the public 1166 header file e_os2.h as it now appears in public header file cms.h 1167 [Steve Henson] 1168 1169 *) New -sigopt option to the ca, req and x509 utilities. Additional 1170 signature parameters can be passed using this option and in 1171 particular PSS. 1172 [Steve Henson] 1173 1174 *) Add RSA PSS signing function. This will generate and set the 1175 appropriate AlgorithmIdentifiers for PSS based on those in the 1176 corresponding EVP_MD_CTX structure. No application support yet. 1177 [Steve Henson] 1178 1179 *) Support for companion algorithm specific ASN1 signing routines. 1180 New function ASN1_item_sign_ctx() signs a pre-initialised 1181 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on 1182 the appropriate parameters. 1183 [Steve Henson] 1184 1185 *) Add new algorithm specific ASN1 verification initialisation function 1186 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1 1187 handling will be the same no matter what EVP_PKEY_METHOD is used. 1188 Add a PSS handler to support verification of PSS signatures: checked 1189 against a number of sample certificates. 1190 [Steve Henson] 1191 1192 *) Add signature printing for PSS. Add PSS OIDs. 1193 [Steve Henson, Martin Kaiser <lists@kaiser.cx>] 1194 1195 *) Add algorithm specific signature printing. An individual ASN1 method 1196 can now print out signatures instead of the standard hex dump. 1197 1198 More complex signatures (e.g. PSS) can print out more meaningful 1199 information. Include DSA version that prints out the signature 1200 parameters r, s. 1201 [Steve Henson] 1202 1203 *) Password based recipient info support for CMS library: implementing 1204 RFC3211. 1205 [Steve Henson] 1206 1207 *) Split password based encryption into PBES2 and PBKDF2 functions. This 1208 neatly separates the code into cipher and PBE sections and is required 1209 for some algorithms that split PBES2 into separate pieces (such as 1210 password based CMS). 1211 [Steve Henson] 1212 1213 *) Session-handling fixes: 1214 - Fix handling of connections that are resuming with a session ID, 1215 but also support Session Tickets. 1216 - Fix a bug that suppressed issuing of a new ticket if the client 1217 presented a ticket with an expired session. 1218 - Try to set the ticket lifetime hint to something reasonable. 1219 - Make tickets shorter by excluding irrelevant information. 1220 - On the client side, don't ignore renewed tickets. 1221 [Adam Langley, Bodo Moeller (Google)] 1222 1223 *) Fix PSK session representation. 1224 [Bodo Moeller] 1225 1226 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations. 1227 1228 This work was sponsored by Intel. 1229 [Andy Polyakov] 1230 1231 *) Add GCM support to TLS library. Some custom code is needed to split 1232 the IV between the fixed (from PRF) and explicit (from TLS record) 1233 portions. This adds all GCM ciphersuites supported by RFC5288 and 1234 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and 1235 add a special AESGCM string for GCM only. 1236 [Steve Henson] 1237 1238 *) Expand range of ctrls for AES GCM. Permit setting invocation 1239 field on decrypt and retrieval of invocation field only on encrypt. 1240 [Steve Henson] 1241 1242 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support. 1243 As required by RFC5289 these ciphersuites cannot be used if for 1244 versions of TLS earlier than 1.2. 1245 [Steve Henson] 1246 1247 *) For FIPS capable OpenSSL interpret a NULL default public key method 1248 as unset and return the appopriate default but do *not* set the default. 1249 This means we can return the appopriate method in applications that 1250 swicth between FIPS and non-FIPS modes. 1251 [Steve Henson] 1252 1253 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an 1254 ENGINE is used then we cannot handle that in the FIPS module so we 1255 keep original code iff non-FIPS operations are allowed. 1256 [Steve Henson] 1257 1258 *) Add -attime option to openssl utilities. 1259 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson] 1260 1261 *) Redirect DSA and DH operations to FIPS module in FIPS mode. 1262 [Steve Henson] 1263 1264 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use 1265 FIPS EC methods unconditionally for now. 1266 [Steve Henson] 1267 1268 *) New build option no-ec2m to disable characteristic 2 code. 1269 [Steve Henson] 1270 1271 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not 1272 all cases can be covered as some introduce binary incompatibilities. 1273 [Steve Henson] 1274 1275 *) Redirect RSA operations to FIPS module including keygen, 1276 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods. 1277 [Steve Henson] 1278 1279 *) Add similar low level API blocking to ciphers. 1280 [Steve Henson] 1281 1282 *) Low level digest APIs are not approved in FIPS mode: any attempt 1283 to use these will cause a fatal error. Applications that *really* want 1284 to use them can use the private_* version instead. 1285 [Steve Henson] 1286 1287 *) Redirect cipher operations to FIPS module for FIPS builds. 1288 [Steve Henson] 1289 1290 *) Redirect digest operations to FIPS module for FIPS builds. 1291 [Steve Henson] 1292 1293 *) Update build system to add "fips" flag which will link in fipscanister.o 1294 for static and shared library builds embedding a signature if needed. 1295 [Steve Henson] 1296 1297 *) Output TLS supported curves in preference order instead of numerical 1298 order. This is currently hardcoded for the highest order curves first. 1299 This should be configurable so applications can judge speed vs strength. 1300 [Steve Henson] 1301 1302 *) Add TLS v1.2 server support for client authentication. 1303 [Steve Henson] 1304 1305 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers 1306 and enable MD5. 1307 [Steve Henson] 1308 1309 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying 1310 FIPS modules versions. 1311 [Steve Henson] 1312 1313 *) Add TLS v1.2 client side support for client authentication. Keep cache 1314 of handshake records longer as we don't know the hash algorithm to use 1315 until after the certificate request message is received. 1316 [Steve Henson] 1317 1318 *) Initial TLS v1.2 client support. Add a default signature algorithms 1319 extension including all the algorithms we support. Parse new signature 1320 format in client key exchange. Relax some ECC signing restrictions for 1321 TLS v1.2 as indicated in RFC5246. 1322 [Steve Henson] 1323 1324 *) Add server support for TLS v1.2 signature algorithms extension. Switch 1325 to new signature format when needed using client digest preference. 1326 All server ciphersuites should now work correctly in TLS v1.2. No client 1327 support yet and no support for client certificates. 1328 [Steve Henson] 1329 1330 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch 1331 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based 1332 ciphersuites. At present only RSA key exchange ciphersuites work with 1333 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete 1334 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods 1335 and version checking. 1336 [Steve Henson] 1337 1338 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled 1339 with this defined it will not be affected by any changes to ssl internal 1340 structures. Add several utility functions to allow openssl application 1341 to work with OPENSSL_NO_SSL_INTERN defined. 1342 [Steve Henson] 1343 1344 *) Add SRP support. 1345 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie] 1346 1347 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id. 1348 [Steve Henson] 1349 1350 *) Permit abbreviated handshakes when renegotiating using the function 1351 SSL_renegotiate_abbreviated(). 1352 [Robin Seggelmann <seggelmann@fh-muenster.de>] 1353 1354 *) Add call to ENGINE_register_all_complete() to 1355 ENGINE_load_builtin_engines(), so some implementations get used 1356 automatically instead of needing explicit application support. 1357 [Steve Henson] 1358 1359 *) Add support for TLS key exporter as described in RFC5705. 1360 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson] 1361 1362 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only 1363 a few changes are required: 1364 1365 Add SSL_OP_NO_TLSv1_1 flag. 1366 Add TLSv1_1 methods. 1367 Update version checking logic to handle version 1.1. 1368 Add explicit IV handling (ported from DTLS code). 1369 Add command line options to s_client/s_server. 1370 [Steve Henson] 1371 1372 Changes between 1.0.0g and 1.0.0h [12 Mar 2012] 1373 1374 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness 1375 in CMS and PKCS7 code. When RSA decryption fails use a random key for 1376 content decryption and always return the same error. Note: this attack 1377 needs on average 2^20 messages so it only affects automated senders. The 1378 old behaviour can be reenabled in the CMS code by setting the 1379 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where 1380 an MMA defence is not necessary. 1381 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering 1382 this issue. (CVE-2012-0884) 1383 [Steve Henson] 1384 1385 *) Fix CVE-2011-4619: make sure we really are receiving a 1386 client hello before rejecting multiple SGC restarts. Thanks to 1387 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug. 1388 [Steve Henson] 1389 1390 Changes between 1.0.0f and 1.0.0g [18 Jan 2012] 1391 1392 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109. 1393 Thanks to Antonio Martin, Enterprise Secure Access Research and 1394 Development, Cisco Systems, Inc. for discovering this bug and 1395 preparing a fix. (CVE-2012-0050) 1396 [Antonio Martin] 1397 1398 Changes between 1.0.0e and 1.0.0f [4 Jan 2012] 1399 1400 *) Nadhem Alfardan and Kenny Paterson have discovered an extension 1401 of the Vaudenay padding oracle attack on CBC mode encryption 1402 which enables an efficient plaintext recovery attack against 1403 the OpenSSL implementation of DTLS. Their attack exploits timing 1404 differences arising during decryption processing. A research 1405 paper describing this attack can be found at: 1406 http://www.isg.rhul.ac.uk/~kp/dtls.pdf 1407 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information 1408 Security Group at Royal Holloway, University of London 1409 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann 1410 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de> 1411 for preparing the fix. (CVE-2011-4108) 1412 [Robin Seggelmann, Michael Tuexen] 1413 1414 *) Clear bytes used for block padding of SSL 3.0 records. 1415 (CVE-2011-4576) 1416 [Adam Langley (Google)] 1417 1418 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George 1419 Kadianakis <desnacked@gmail.com> for discovering this issue and 1420 Adam Langley for preparing the fix. (CVE-2011-4619) 1421 [Adam Langley (Google)] 1422 1423 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027) 1424 [Andrey Kulikov <amdeich@gmail.com>] 1425 1426 *) Prevent malformed RFC3779 data triggering an assertion failure. 1427 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw 1428 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577) 1429 [Rob Austein <sra@hactrn.net>] 1430 1431 *) Improved PRNG seeding for VOS. 1432 [Paul Green <Paul.Green@stratus.com>] 1433 1434 *) Fix ssl_ciph.c set-up race. 1435 [Adam Langley (Google)] 1436 1437 *) Fix spurious failures in ecdsatest.c. 1438 [Emilia K�sper (Google)] 1439 1440 *) Fix the BIO_f_buffer() implementation (which was mixing different 1441 interpretations of the '..._len' fields). 1442 [Adam Langley (Google)] 1443 1444 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than 1445 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent 1446 threads won't reuse the same blinding coefficients. 1447 1448 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING 1449 lock to call BN_BLINDING_invert_ex, and avoids one use of 1450 BN_BLINDING_update for each BN_BLINDING structure (previously, 1451 the last update always remained unused). 1452 [Emilia K�sper (Google)] 1453 1454 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf. 1455 [Bob Buckholz (Google)] 1456 1457 Changes between 1.0.0d and 1.0.0e [6 Sep 2011] 1458 1459 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted 1460 by initialising X509_STORE_CTX properly. (CVE-2011-3207) 1461 [Kaspar Brand <ossl@velox.ch>] 1462 1463 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular 1464 for multi-threaded use of ECDH. (CVE-2011-3210) 1465 [Adam Langley (Google)] 1466 1467 *) Fix x509_name_ex_d2i memory leak on bad inputs. 1468 [Bodo Moeller] 1469 1470 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check 1471 signature public key algorithm by using OID xref utilities instead. 1472 Before this you could only use some ECC ciphersuites with SHA1 only. 1473 [Steve Henson] 1474 1475 *) Add protection against ECDSA timing attacks as mentioned in the paper 1476 by Billy Bob Brumley and Nicola Tuveri, see: 1477 1478 http://eprint.iacr.org/2011/232.pdf 1479 1480 [Billy Bob Brumley and Nicola Tuveri] 1481 1482 Changes between 1.0.0c and 1.0.0d [8 Feb 2011] 1483 1484 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014 1485 [Neel Mehta, Adam Langley, Bodo Moeller (Google)] 1486 1487 *) Fix bug in string printing code: if *any* escaping is enabled we must 1488 escape the escape character (backslash) or the resulting string is 1489 ambiguous. 1490 [Steve Henson] 1491 1492 Changes between 1.0.0b and 1.0.0c [2 Dec 2010] 1493 1494 *) Disable code workaround for ancient and obsolete Netscape browsers 1495 and servers: an attacker can use it in a ciphersuite downgrade attack. 1496 Thanks to Martin Rex for discovering this bug. CVE-2010-4180 1497 [Steve Henson] 1498 1499 *) Fixed J-PAKE implementation error, originally discovered by 1500 Sebastien Martini, further info and confirmation from Stefan 1501 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252 1502 [Ben Laurie] 1503 1504 Changes between 1.0.0a and 1.0.0b [16 Nov 2010] 1505 1506 *) Fix extension code to avoid race conditions which can result in a buffer 1507 overrun vulnerability: resumed sessions must not be modified as they can 1508 be shared by multiple threads. CVE-2010-3864 1509 [Steve Henson] 1510 1511 *) Fix WIN32 build system to correctly link an ENGINE directory into 1512 a DLL. 1513 [Steve Henson] 1514 1515 Changes between 1.0.0 and 1.0.0a [01 Jun 2010] 1516 1517 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover 1518 (CVE-2010-1633) 1519 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>] 1520 1521 Changes between 0.9.8n and 1.0.0 [29 Mar 2010] 1522 1523 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher 1524 context. The operation can be customised via the ctrl mechanism in 1525 case ENGINEs want to include additional functionality. 1526 [Steve Henson] 1527 1528 *) Tolerate yet another broken PKCS#8 key format: private key value negative. 1529 [Steve Henson] 1530 1531 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to 1532 output hashes compatible with older versions of OpenSSL. 1533 [Willy Weisz <weisz@vcpc.univie.ac.at>] 1534 1535 *) Fix compression algorithm handling: if resuming a session use the 1536 compression algorithm of the resumed session instead of determining 1537 it from client hello again. Don't allow server to change algorithm. 1538 [Steve Henson] 1539 1540 *) Add load_crls() function to apps tidying load_certs() too. Add option 1541 to verify utility to allow additional CRLs to be included. 1542 [Steve Henson] 1543 1544 *) Update OCSP request code to permit adding custom headers to the request: 1545 some responders need this. 1546 [Steve Henson] 1547 1548 *) The function EVP_PKEY_sign() returns <=0 on error: check return code 1549 correctly. 1550 [Julia Lawall <julia@diku.dk>] 1551 1552 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it 1553 needlessly dereferenced structures, used obsolete functions and 1554 didn't handle all updated verify codes correctly. 1555 [Steve Henson] 1556 1557 *) Disable MD2 in the default configuration. 1558 [Steve Henson] 1559 1560 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to 1561 indicate the initial BIO being pushed or popped. This makes it possible 1562 to determine whether the BIO is the one explicitly called or as a result 1563 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so 1564 it handles reference counts correctly and doesn't zero out the I/O bio 1565 when it is not being explicitly popped. WARNING: applications which 1566 included workarounds for the old buggy behaviour will need to be modified 1567 or they could free up already freed BIOs. 1568 [Steve Henson] 1569 1570 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni 1571 renaming to all platforms (within the 0.9.8 branch, this was 1572 done conditionally on Netware platforms to avoid a name clash). 1573 [Guenter <lists@gknw.net>] 1574 1575 *) Add ECDHE and PSK support to DTLS. 1576 [Michael Tuexen <tuexen@fh-muenster.de>] 1577 1578 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't 1579 be used on C++. 1580 [Steve Henson] 1581 1582 *) Add "missing" function EVP_MD_flags() (without this the only way to 1583 retrieve a digest flags is by accessing the structure directly. Update 1584 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest 1585 or cipher is registered as in the "from" argument. Print out all 1586 registered digests in the dgst usage message instead of manually 1587 attempting to work them out. 1588 [Steve Henson] 1589 1590 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello: 1591 this allows the use of compression and extensions. Change default cipher 1592 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2 1593 by default unless an application cipher string requests it. 1594 [Steve Henson] 1595 1596 *) Alter match criteria in PKCS12_parse(). It used to try to use local 1597 key ids to find matching certificates and keys but some PKCS#12 files 1598 don't follow the (somewhat unwritten) rules and this strategy fails. 1599 Now just gather all certificates together and the first private key 1600 then look for the first certificate that matches the key. 1601 [Steve Henson] 1602 1603 *) Support use of registered digest and cipher names for dgst and cipher 1604 commands instead of having to add each one as a special case. So now 1605 you can do: 1606 1607 openssl sha256 foo 1608 1609 as well as: 1610 1611 openssl dgst -sha256 foo 1612 1613 and this works for ENGINE based algorithms too. 1614 1615 [Steve Henson] 1616 1617 *) Update Gost ENGINE to support parameter files. 1618 [Victor B. Wagner <vitus@cryptocom.ru>] 1619 1620 *) Support GeneralizedTime in ca utility. 1621 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson] 1622 1623 *) Enhance the hash format used for certificate directory links. The new 1624 form uses the canonical encoding (meaning equivalent names will work 1625 even if they aren't identical) and uses SHA1 instead of MD5. This form 1626 is incompatible with the older format and as a result c_rehash should 1627 be used to rebuild symbolic links. 1628 [Steve Henson] 1629 1630 *) Make PKCS#8 the default write format for private keys, replacing the 1631 traditional format. This form is standardised, more secure and doesn't 1632 include an implicit MD5 dependency. 1633 [Steve Henson] 1634 1635 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code 1636 committed to OpenSSL should pass this lot as a minimum. 1637 [Steve Henson] 1638 1639 *) Add session ticket override functionality for use by EAP-FAST. 1640 [Jouni Malinen <j@w1.fi>] 1641 1642 *) Modify HMAC functions to return a value. Since these can be implemented 1643 in an ENGINE errors can occur. 1644 [Steve Henson] 1645 1646 *) Type-checked OBJ_bsearch_ex. 1647 [Ben Laurie] 1648 1649 *) Type-checked OBJ_bsearch. Also some constification necessitated 1650 by type-checking. Still to come: TXT_DB, bsearch(?), 1651 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING, 1652 CONF_VALUE. 1653 [Ben Laurie] 1654 1655 *) New function OPENSSL_gmtime_adj() to add a specific number of days and 1656 seconds to a tm structure directly, instead of going through OS 1657 specific date routines. This avoids any issues with OS routines such 1658 as the year 2038 bug. New *_adj() functions for ASN1 time structures 1659 and X509_time_adj_ex() to cover the extended range. The existing 1660 X509_time_adj() is still usable and will no longer have any date issues. 1661 [Steve Henson] 1662 1663 *) Delta CRL support. New use deltas option which will attempt to locate 1664 and search any appropriate delta CRLs available. 1665 1666 This work was sponsored by Google. 1667 [Steve Henson] 1668 1669 *) Support for CRLs partitioned by reason code. Reorganise CRL processing 1670 code and add additional score elements. Validate alternate CRL paths 1671 as part of the CRL checking and indicate a new error "CRL path validation 1672 error" in this case. Applications wanting additional details can use 1673 the verify callback and check the new "parent" field. If this is not 1674 NULL CRL path validation is taking place. Existing applications wont 1675 see this because it requires extended CRL support which is off by 1676 default. 1677 1678 This work was sponsored by Google. 1679 [Steve Henson] 1680 1681 *) Support for freshest CRL extension. 1682 1683 This work was sponsored by Google. 1684 [Steve Henson] 1685 1686 *) Initial indirect CRL support. Currently only supported in the CRLs 1687 passed directly and not via lookup. Process certificate issuer 1688 CRL entry extension and lookup CRL entries by bother issuer name 1689 and serial number. Check and process CRL issuer entry in IDP extension. 1690 1691 This work was sponsored by Google. 1692 [Steve Henson] 1693 1694 *) Add support for distinct certificate and CRL paths. The CRL issuer 1695 certificate is validated separately in this case. Only enabled if 1696 an extended CRL support flag is set: this flag will enable additional 1697 CRL functionality in future. 1698 1699 This work was sponsored by Google. 1700 [Steve Henson] 1701 1702 *) Add support for policy mappings extension. 1703 1704 This work was sponsored by Google. 1705 [Steve Henson] 1706 1707 *) Fixes to pathlength constraint, self issued certificate handling, 1708 policy processing to align with RFC3280 and PKITS tests. 1709 1710 This work was sponsored by Google. 1711 [Steve Henson] 1712 1713 *) Support for name constraints certificate extension. DN, email, DNS 1714 and URI types are currently supported. 1715 1716 This work was sponsored by Google. 1717 [Steve Henson] 1718 1719 *) To cater for systems that provide a pointer-based thread ID rather 1720 than numeric, deprecate the current numeric thread ID mechanism and 1721 replace it with a structure and associated callback type. This 1722 mechanism allows a numeric "hash" to be extracted from a thread ID in 1723 either case, and on platforms where pointers are larger than 'long', 1724 mixing is done to help ensure the numeric 'hash' is usable even if it 1725 can't be guaranteed unique. The default mechanism is to use "&errno" 1726 as a pointer-based thread ID to distinguish between threads. 1727 1728 Applications that want to provide their own thread IDs should now use 1729 CRYPTO_THREADID_set_callback() to register a callback that will call 1730 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer(). 1731 1732 Note that ERR_remove_state() is now deprecated, because it is tied 1733 to the assumption that thread IDs are numeric. ERR_remove_state(0) 1734 to free the current thread's error state should be replaced by 1735 ERR_remove_thread_state(NULL). 1736 1737 (This new approach replaces the functions CRYPTO_set_idptr_callback(), 1738 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in 1739 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an 1740 application was previously providing a numeric thread callback that 1741 was inappropriate for distinguishing threads, then uniqueness might 1742 have been obtained with &errno that happened immediately in the 1743 intermediate development versions of OpenSSL; this is no longer the 1744 case, the numeric thread callback will now override the automatic use 1745 of &errno.) 1746 [Geoff Thorpe, with help from Bodo Moeller] 1747 1748 *) Initial support for different CRL issuing certificates. This covers a 1749 simple case where the self issued certificates in the chain exist and 1750 the real CRL issuer is higher in the existing chain. 1751 1752 This work was sponsored by Google. 1753 [Steve Henson] 1754 1755 *) Removed effectively defunct crypto/store from the build. 1756 [Ben Laurie] 1757 1758 *) Revamp of STACK to provide stronger type-checking. Still to come: 1759 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE, 1760 ASN1_STRING, CONF_VALUE. 1761 [Ben Laurie] 1762 1763 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer 1764 RAM on SSL connections. This option can save about 34k per idle SSL. 1765 [Nick Mathewson] 1766 1767 *) Revamp of LHASH to provide stronger type-checking. Still to come: 1768 STACK, TXT_DB, bsearch, qsort. 1769 [Ben Laurie] 1770 1771 *) Initial support for Cryptographic Message Syntax (aka CMS) based 1772 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility, 1773 support for data, signedData, compressedData, digestedData and 1774 encryptedData, envelopedData types included. Scripts to check against 1775 RFC4134 examples draft and interop and consistency checks of many 1776 content types and variants. 1777 [Steve Henson] 1778 1779 *) Add options to enc utility to support use of zlib compression BIO. 1780 [Steve Henson] 1781 1782 *) Extend mk1mf to support importing of options and assembly language 1783 files from Configure script, currently only included in VC-WIN32. 1784 The assembly language rules can now optionally generate the source 1785 files from the associated perl scripts. 1786 [Steve Henson] 1787 1788 *) Implement remaining functionality needed to support GOST ciphersuites. 1789 Interop testing has been performed using CryptoPro implementations. 1790 [Victor B. Wagner <vitus@cryptocom.ru>] 1791 1792 *) s390x assembler pack. 1793 [Andy Polyakov] 1794 1795 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU 1796 "family." 1797 [Andy Polyakov] 1798 1799 *) Implement Opaque PRF Input TLS extension as specified in 1800 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an 1801 official specification yet and no extension type assignment by 1802 IANA exists, this extension (for now) will have to be explicitly 1803 enabled when building OpenSSL by providing the extension number 1804 to use. For example, specify an option 1805 1806 -DTLSEXT_TYPE_opaque_prf_input=0x9527 1807 1808 to the "config" or "Configure" script to enable the extension, 1809 assuming extension number 0x9527 (which is a completely arbitrary 1810 and unofficial assignment based on the MD5 hash of the Internet 1811 Draft). Note that by doing so, you potentially lose 1812 interoperability with other TLS implementations since these might 1813 be using the same extension number for other purposes. 1814 1815 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the 1816 opaque PRF input value to use in the handshake. This will create 1817 an interal copy of the length-'len' string at 'src', and will 1818 return non-zero for success. 1819 1820 To get more control and flexibility, provide a callback function 1821 by using 1822 1823 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb) 1824 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg) 1825 1826 where 1827 1828 int (*cb)(SSL *, void *peerinput, size_t len, void *arg); 1829 void *arg; 1830 1831 Callback function 'cb' will be called in handshakes, and is 1832 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate. 1833 Argument 'arg' is for application purposes (the value as given to 1834 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly 1835 be provided to the callback function). The callback function 1836 has to return non-zero to report success: usually 1 to use opaque 1837 PRF input just if possible, or 2 to enforce use of the opaque PRF 1838 input. In the latter case, the library will abort the handshake 1839 if opaque PRF input is not successfully negotiated. 1840 1841 Arguments 'peerinput' and 'len' given to the callback function 1842 will always be NULL and 0 in the case of a client. A server will 1843 see the client's opaque PRF input through these variables if 1844 available (NULL and 0 otherwise). Note that if the server 1845 provides an opaque PRF input, the length must be the same as the 1846 length of the client's opaque PRF input. 1847 1848 Note that the callback function will only be called when creating 1849 a new session (session resumption can resume whatever was 1850 previously negotiated), and will not be called in SSL 2.0 1851 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or 1852 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended 1853 for applications that need to enforce opaque PRF input. 1854 1855 [Bodo Moeller] 1856 1857 *) Update ssl code to support digests other than SHA1+MD5 for handshake 1858 MAC. 1859 1860 [Victor B. Wagner <vitus@cryptocom.ru>] 1861 1862 *) Add RFC4507 support to OpenSSL. This includes the corrections in 1863 RFC4507bis. The encrypted ticket format is an encrypted encoded 1864 SSL_SESSION structure, that way new session features are automatically 1865 supported. 1866 1867 If a client application caches session in an SSL_SESSION structure 1868 support is transparent because tickets are now stored in the encoded 1869 SSL_SESSION. 1870 1871 The SSL_CTX structure automatically generates keys for ticket 1872 protection in servers so again support should be possible 1873 with no application modification. 1874 1875 If a client or server wishes to disable RFC4507 support then the option 1876 SSL_OP_NO_TICKET can be set. 1877 1878 Add a TLS extension debugging callback to allow the contents of any client 1879 or server extensions to be examined. 1880 1881 This work was sponsored by Google. 1882 [Steve Henson] 1883 1884 *) Final changes to avoid use of pointer pointer casts in OpenSSL. 1885 OpenSSL should now compile cleanly on gcc 4.2 1886 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson] 1887 1888 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC 1889 support including streaming MAC support: this is required for GOST 1890 ciphersuite support. 1891 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson] 1892 1893 *) Add option -stream to use PKCS#7 streaming in smime utility. New 1894 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream() 1895 to output in BER and PEM format. 1896 [Steve Henson] 1897 1898 *) Experimental support for use of HMAC via EVP_PKEY interface. This 1899 allows HMAC to be handled via the EVP_DigestSign*() interface. The 1900 EVP_PKEY "key" in this case is the HMAC key, potentially allowing 1901 ENGINE support for HMAC keys which are unextractable. New -mac and 1902 -macopt options to dgst utility. 1903 [Steve Henson] 1904 1905 *) New option -sigopt to dgst utility. Update dgst to use 1906 EVP_Digest{Sign,Verify}*. These two changes make it possible to use 1907 alternative signing paramaters such as X9.31 or PSS in the dgst 1908 utility. 1909 [Steve Henson] 1910 1911 *) Change ssl_cipher_apply_rule(), the internal function that does 1912 the work each time a ciphersuite string requests enabling 1913 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or 1914 removing ("!foo+bar") a class of ciphersuites: Now it maintains 1915 the order of disabled ciphersuites such that those ciphersuites 1916 that most recently went from enabled to disabled not only stay 1917 in order with respect to each other, but also have higher priority 1918 than other disabled ciphersuites the next time ciphersuites are 1919 enabled again. 1920 1921 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable 1922 the same ciphersuites as with "HIGH" alone, but in a specific 1923 order where the PSK ciphersuites come first (since they are the 1924 most recently disabled ciphersuites when "HIGH" is parsed). 1925 1926 Also, change ssl_create_cipher_list() (using this new 1927 funcionality) such that between otherwise identical 1928 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in 1929 the default order. 1930 [Bodo Moeller] 1931 1932 *) Change ssl_create_cipher_list() so that it automatically 1933 arranges the ciphersuites in reasonable order before starting 1934 to process the rule string. Thus, the definition for "DEFAULT" 1935 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but 1936 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH". 1937 This makes it much easier to arrive at a reasonable default order 1938 in applications for which anonymous ciphers are OK (meaning 1939 that you can't actually use DEFAULT). 1940 [Bodo Moeller; suggested by Victor Duchovni] 1941 1942 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string 1943 processing) into multiple integers instead of setting 1944 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK", 1945 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer. 1946 (These masks as well as the individual bit definitions are hidden 1947 away into the non-exported interface ssl/ssl_locl.h, so this 1948 change to the definition of the SSL_CIPHER structure shouldn't 1949 affect applications.) This give us more bits for each of these 1950 categories, so there is no longer a need to coagulate AES128 and 1951 AES256 into a single algorithm bit, and to coagulate Camellia128 1952 and Camellia256 into a single algorithm bit, which has led to all 1953 kinds of kludges. 1954 1955 Thus, among other things, the kludge introduced in 0.9.7m and 1956 0.9.8e for masking out AES256 independently of AES128 or masking 1957 out Camellia256 independently of AES256 is not needed here in 0.9.9. 1958 1959 With the change, we also introduce new ciphersuite aliases that 1960 so far were missing: "AES128", "AES256", "CAMELLIA128", and 1961 "CAMELLIA256". 1962 [Bodo Moeller] 1963 1964 *) Add support for dsa-with-SHA224 and dsa-with-SHA256. 1965 Use the leftmost N bytes of the signature input if the input is 1966 larger than the prime q (with N being the size in bytes of q). 1967 [Nils Larsch] 1968 1969 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses 1970 it yet and it is largely untested. 1971 [Steve Henson] 1972 1973 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types. 1974 [Nils Larsch] 1975 1976 *) Initial incomplete changes to avoid need for function casts in OpenSSL 1977 some compilers (gcc 4.2 and later) reject their use. Safestack is 1978 reimplemented. Update ASN1 to avoid use of legacy functions. 1979 [Steve Henson] 1980 1981 *) Win32/64 targets are linked with Winsock2. 1982 [Andy Polyakov] 1983 1984 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected 1985 to external functions. This can be used to increase CRL handling 1986 efficiency especially when CRLs are very large by (for example) storing 1987 the CRL revoked certificates in a database. 1988 [Steve Henson] 1989 1990 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so 1991 new CRLs added to a directory can be used. New command line option 1992 -verify_return_error to s_client and s_server. This causes real errors 1993 to be returned by the verify callback instead of carrying on no matter 1994 what. This reflects the way a "real world" verify callback would behave. 1995 [Steve Henson] 1996 1997 *) GOST engine, supporting several GOST algorithms and public key formats. 1998 Kindly donated by Cryptocom. 1999 [Cryptocom] 2000 2001 *) Partial support for Issuing Distribution Point CRL extension. CRLs 2002 partitioned by DP are handled but no indirect CRL or reason partitioning 2003 (yet). Complete overhaul of CRL handling: now the most suitable CRL is 2004 selected via a scoring technique which handles IDP and AKID in CRLs. 2005 [Steve Henson] 2006 2007 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which 2008 will ultimately be used for all verify operations: this will remove the 2009 X509_STORE dependency on certificate verification and allow alternative 2010 lookup methods. X509_STORE based implementations of these two callbacks. 2011 [Steve Henson] 2012 2013 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names. 2014 Modify get_crl() to find a valid (unexpired) CRL if possible. 2015 [Steve Henson] 2016 2017 *) New function X509_CRL_match() to check if two CRLs are identical. Normally 2018 this would be called X509_CRL_cmp() but that name is already used by 2019 a function that just compares CRL issuer names. Cache several CRL 2020 extensions in X509_CRL structure and cache CRLDP in X509. 2021 [Steve Henson] 2022 2023 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name) 2024 this maps equivalent X509_NAME structures into a consistent structure. 2025 Name comparison can then be performed rapidly using memcmp(). 2026 [Steve Henson] 2027 2028 *) Non-blocking OCSP request processing. Add -timeout option to ocsp 2029 utility. 2030 [Steve Henson] 2031 2032 *) Allow digests to supply their own micalg string for S/MIME type using 2033 the ctrl EVP_MD_CTRL_MICALG. 2034 [Steve Henson] 2035 2036 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the 2037 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN 2038 ctrl. It can then customise the structure before and/or after signing 2039 if necessary. 2040 [Steve Henson] 2041 2042 *) New function OBJ_add_sigid() to allow application defined signature OIDs 2043 to be added to OpenSSLs internal tables. New function OBJ_sigid_free() 2044 to free up any added signature OIDs. 2045 [Steve Henson] 2046 2047 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(), 2048 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal 2049 digest and cipher tables. New options added to openssl utility: 2050 list-message-digest-algorithms and list-cipher-algorithms. 2051 [Steve Henson] 2052 2053 *) Change the array representation of binary polynomials: the list 2054 of degrees of non-zero coefficients is now terminated with -1. 2055 Previously it was terminated with 0, which was also part of the 2056 value; thus, the array representation was not applicable to 2057 polynomials where t^0 has coefficient zero. This change makes 2058 the array representation useful in a more general context. 2059 [Douglas Stebila] 2060 2061 *) Various modifications and fixes to SSL/TLS cipher string 2062 handling. For ECC, the code now distinguishes between fixed ECDH 2063 with RSA certificates on the one hand and with ECDSA certificates 2064 on the other hand, since these are separate ciphersuites. The 2065 unused code for Fortezza ciphersuites has been removed. 2066 2067 For consistency with EDH, ephemeral ECDH is now called "EECDH" 2068 (not "ECDHE"). For consistency with the code for DH 2069 certificates, use of ECDH certificates is now considered ECDH 2070 authentication, not RSA or ECDSA authentication (the latter is 2071 merely the CA's signing algorithm and not actively used in the 2072 protocol). 2073 2074 The temporary ciphersuite alias "ECCdraft" is no longer 2075 available, and ECC ciphersuites are no longer excluded from "ALL" 2076 and "DEFAULT". The following aliases now exist for RFC 4492 2077 ciphersuites, most of these by analogy with the DH case: 2078 2079 kECDHr - ECDH cert, signed with RSA 2080 kECDHe - ECDH cert, signed with ECDSA 2081 kECDH - ECDH cert (signed with either RSA or ECDSA) 2082 kEECDH - ephemeral ECDH 2083 ECDH - ECDH cert or ephemeral ECDH 2084 2085 aECDH - ECDH cert 2086 aECDSA - ECDSA cert 2087 ECDSA - ECDSA cert 2088 2089 AECDH - anonymous ECDH 2090 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH") 2091 2092 [Bodo Moeller] 2093 2094 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported. 2095 Use correct micalg parameters depending on digest(s) in signed message. 2096 [Steve Henson] 2097 2098 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process 2099 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code. 2100 [Steve Henson] 2101 2102 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit 2103 an engine to register a method. Add ENGINE lookups for methods and 2104 functional reference processing. 2105 [Steve Henson] 2106 2107 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of 2108 EVP_{Sign,Verify}* which allow an application to customise the signature 2109 process. 2110 [Steve Henson] 2111 2112 *) New -resign option to smime utility. This adds one or more signers 2113 to an existing PKCS#7 signedData structure. Also -md option to use an 2114 alternative message digest algorithm for signing. 2115 [Steve Henson] 2116 2117 *) Tidy up PKCS#7 routines and add new functions to make it easier to 2118 create PKCS7 structures containing multiple signers. Update smime 2119 application to support multiple signers. 2120 [Steve Henson] 2121 2122 *) New -macalg option to pkcs12 utility to allow setting of an alternative 2123 digest MAC. 2124 [Steve Henson] 2125 2126 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC. 2127 Reorganize PBE internals to lookup from a static table using NIDs, 2128 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl: 2129 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative 2130 PRF which will be automatically used with PBES2. 2131 [Steve Henson] 2132 2133 *) Replace the algorithm specific calls to generate keys in "req" with the 2134 new API. 2135 [Steve Henson] 2136 2137 *) Update PKCS#7 enveloped data routines to use new API. This is now 2138 supported by any public key method supporting the encrypt operation. A 2139 ctrl is added to allow the public key algorithm to examine or modify 2140 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is 2141 a no op. 2142 [Steve Henson] 2143 2144 *) Add a ctrl to asn1 method to allow a public key algorithm to express 2145 a default digest type to use. In most cases this will be SHA1 but some 2146 algorithms (such as GOST) need to specify an alternative digest. The 2147 return value indicates how strong the prefernce is 1 means optional and 2148 2 is mandatory (that is it is the only supported type). Modify 2149 ASN1_item_sign() to accept a NULL digest argument to indicate it should 2150 use the default md. Update openssl utilities to use the default digest 2151 type for signing if it is not explicitly indicated. 2152 [Steve Henson] 2153 2154 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New 2155 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant 2156 signing method from the key type. This effectively removes the link 2157 between digests and public key types. 2158 [Steve Henson] 2159 2160 *) Add an OID cross reference table and utility functions. Its purpose is to 2161 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1, 2162 rsaEncryption. This will allow some of the algorithm specific hackery 2163 needed to use the correct OID to be removed. 2164 [Steve Henson] 2165 2166 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO 2167 structures for PKCS7_sign(). They are now set up by the relevant public 2168 key ASN1 method. 2169 [Steve Henson] 2170 2171 *) Add provisional EC pkey method with support for ECDSA and ECDH. 2172 [Steve Henson] 2173 2174 *) Add support for key derivation (agreement) in the API, DH method and 2175 pkeyutl. 2176 [Steve Henson] 2177 2178 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support 2179 public and private key formats. As a side effect these add additional 2180 command line functionality not previously available: DSA signatures can be 2181 generated and verified using pkeyutl and DH key support and generation in 2182 pkey, genpkey. 2183 [Steve Henson] 2184 2185 *) BeOS support. 2186 [Oliver Tappe <zooey@hirschkaefer.de>] 2187 2188 *) New make target "install_html_docs" installs HTML renditions of the 2189 manual pages. 2190 [Oliver Tappe <zooey@hirschkaefer.de>] 2191 2192 *) New utility "genpkey" this is analagous to "genrsa" etc except it can 2193 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to 2194 support key and parameter generation and add initial key generation 2195 functionality for RSA. 2196 [Steve Henson] 2197 2198 *) Add functions for main EVP_PKEY_method operations. The undocumented 2199 functions EVP_PKEY_{encrypt,decrypt} have been renamed to 2200 EVP_PKEY_{encrypt,decrypt}_old. 2201 [Steve Henson] 2202 2203 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public 2204 key API, doesn't do much yet. 2205 [Steve Henson] 2206 2207 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about 2208 public key algorithms. New option to openssl utility: 2209 "list-public-key-algorithms" to print out info. 2210 [Steve Henson] 2211 2212 *) Implement the Supported Elliptic Curves Extension for 2213 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 2214 [Douglas Stebila] 2215 2216 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or 2217 EVP_CIPHER structures to avoid later problems in EVP_cleanup(). 2218 [Steve Henson] 2219 2220 *) New utilities pkey and pkeyparam. These are similar to algorithm specific 2221 utilities such as rsa, dsa, dsaparam etc except they process any key 2222 type. 2223 [Steve Henson] 2224 2225 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New 2226 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(), 2227 EVP_PKEY_print_param() to print public key data from an EVP_PKEY 2228 structure. 2229 [Steve Henson] 2230 2231 *) Initial support for pluggable public key ASN1. 2232 De-spaghettify the public key ASN1 handling. Move public and private 2233 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate 2234 algorithm specific handling to a single module within the relevant 2235 algorithm directory. Add functions to allow (near) opaque processing 2236 of public and private key structures. 2237 [Steve Henson] 2238 2239 *) Implement the Supported Point Formats Extension for 2240 ECC ciphersuites from draft-ietf-tls-ecc-12.txt. 2241 [Douglas Stebila] 2242 2243 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members 2244 for the psk identity [hint] and the psk callback functions to the 2245 SSL_SESSION, SSL and SSL_CTX structure. 2246 2247 New ciphersuites: 2248 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA, 2249 PSK-AES256-CBC-SHA 2250 2251 New functions: 2252 SSL_CTX_use_psk_identity_hint 2253 SSL_get_psk_identity_hint 2254 SSL_get_psk_identity 2255 SSL_use_psk_identity_hint 2256 2257 [Mika Kousa and Pasi Eronen of Nokia Corporation] 2258 2259 *) Add RFC 3161 compliant time stamp request creation, response generation 2260 and response verification functionality. 2261 [Zolt�n Gl�zik <zglozik@opentsa.org>, The OpenTSA Project] 2262 2263 *) Add initial support for TLS extensions, specifically for the server_name 2264 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 2265 have new members for a host name. The SSL data structure has an 2266 additional member SSL_CTX *initial_ctx so that new sessions can be 2267 stored in that context to allow for session resumption, even after the 2268 SSL has been switched to a new SSL_CTX in reaction to a client's 2269 server_name extension. 2270 2271 New functions (subject to change): 2272 2273 SSL_get_servername() 2274 SSL_get_servername_type() 2275 SSL_set_SSL_CTX() 2276 2277 New CTRL codes and macros (subject to change): 2278 2279 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 2280 - SSL_CTX_set_tlsext_servername_callback() 2281 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 2282 - SSL_CTX_set_tlsext_servername_arg() 2283 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 2284 2285 openssl s_client has a new '-servername ...' option. 2286 2287 openssl s_server has new options '-servername_host ...', '-cert2 ...', 2288 '-key2 ...', '-servername_fatal' (subject to change). This allows 2289 testing the HostName extension for a specific single host name ('-cert' 2290 and '-key' remain fallbacks for handshakes without HostName 2291 negotiation). If the unrecogninzed_name alert has to be sent, this by 2292 default is a warning; it becomes fatal with the '-servername_fatal' 2293 option. 2294 2295 [Peter Sylvester, Remy Allais, Christophe Renou] 2296 2297 *) Whirlpool hash implementation is added. 2298 [Andy Polyakov] 2299 2300 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to 2301 bn(64,32). Because of instruction set limitations it doesn't have 2302 any negative impact on performance. This was done mostly in order 2303 to make it possible to share assembler modules, such as bn_mul_mont 2304 implementations, between 32- and 64-bit builds without hassle. 2305 [Andy Polyakov] 2306 2307 *) Move code previously exiled into file crypto/ec/ec2_smpt.c 2308 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP 2309 macro. 2310 [Bodo Moeller] 2311 2312 *) New candidate for BIGNUM assembler implementation, bn_mul_mont, 2313 dedicated Montgomery multiplication procedure, is introduced. 2314 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher 2315 "64-bit" performance on certain 32-bit targets. 2316 [Andy Polyakov] 2317 2318 *) New option SSL_OP_NO_COMP to disable use of compression selectively 2319 in SSL structures. New SSL ctrl to set maximum send fragment size. 2320 Save memory by seeting the I/O buffer sizes dynamically instead of 2321 using the maximum available value. 2322 [Steve Henson] 2323 2324 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code 2325 in addition to the text details. 2326 [Bodo Moeller] 2327 2328 *) Very, very preliminary EXPERIMENTAL support for printing of general 2329 ASN1 structures. This currently produces rather ugly output and doesn't 2330 handle several customised structures at all. 2331 [Steve Henson] 2332 2333 *) Integrated support for PVK file format and some related formats such 2334 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support 2335 these in the 'rsa' and 'dsa' utilities. 2336 [Steve Henson] 2337 2338 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line. 2339 [Steve Henson] 2340 2341 *) Remove the ancient ASN1_METHOD code. This was only ever used in one 2342 place for the (very old) "NETSCAPE" format certificates which are now 2343 handled using new ASN1 code equivalents. 2344 [Steve Henson] 2345 2346 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD 2347 pointer and make the SSL_METHOD parameter in SSL_CTX_new, 2348 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'. 2349 [Nils Larsch] 2350 2351 *) Modify CRL distribution points extension code to print out previously 2352 unsupported fields. Enhance extension setting code to allow setting of 2353 all fields. 2354 [Steve Henson] 2355 2356 *) Add print and set support for Issuing Distribution Point CRL extension. 2357 [Steve Henson] 2358 2359 *) Change 'Configure' script to enable Camellia by default. 2360 [NTT] 2361 2362 Changes between 0.9.8m and 0.9.8n [24 Mar 2010] 2363 2364 *) When rejecting SSL/TLS records due to an incorrect version number, never 2365 update s->server with a new major version number. As of 2366 - OpenSSL 0.9.8m if 'short' is a 16-bit type, 2367 - OpenSSL 0.9.8f if 'short' is longer than 16 bits, 2368 the previous behavior could result in a read attempt at NULL when 2369 receiving specific incorrect SSL/TLS records once record payload 2370 protection is active. (CVE-2010-0740) 2371 [Bodo Moeller, Adam Langley <agl@chromium.org>] 2372 2373 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL 2374 could be crashed if the relevant tables were not present (e.g. chrooted). 2375 [Tomas Hoger <thoger@redhat.com>] 2376 2377 Changes between 0.9.8l and 0.9.8m [25 Feb 2010] 2378 2379 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245) 2380 [Martin Olsson, Neel Mehta] 2381 2382 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to 2383 accommodate for stack sorting, always a write lock!). 2384 [Bodo Moeller] 2385 2386 *) On some versions of WIN32 Heap32Next is very slow. This can cause 2387 excessive delays in the RAND_poll(): over a minute. As a workaround 2388 include a time check in the inner Heap32Next loop too. 2389 [Steve Henson] 2390 2391 *) The code that handled flushing of data in SSL/TLS originally used the 2392 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused 2393 the problem outlined in PR#1949. The fix suggested there however can 2394 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions 2395 of Apache). So instead simplify the code to flush unconditionally. 2396 This should be fine since flushing with no data to flush is a no op. 2397 [Steve Henson] 2398 2399 *) Handle TLS versions 2.0 and later properly and correctly use the 2400 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way 2401 off ancient servers have a habit of sticking around for a while... 2402 [Steve Henson] 2403 2404 *) Modify compression code so it frees up structures without using the 2405 ex_data callbacks. This works around a problem where some applications 2406 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when 2407 restarting) then use compression (e.g. SSL with compression) later. 2408 This results in significant per-connection memory leaks and 2409 has caused some security issues including CVE-2008-1678 and 2410 CVE-2009-4355. 2411 [Steve Henson] 2412 2413 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't 2414 change when encrypting or decrypting. 2415 [Bodo Moeller] 2416 2417 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to 2418 connect and renegotiate with servers which do not support RI. 2419 Until RI is more widely deployed this option is enabled by default. 2420 [Steve Henson] 2421 2422 *) Add "missing" ssl ctrls to clear options and mode. 2423 [Steve Henson] 2424 2425 *) If client attempts to renegotiate and doesn't support RI respond with 2426 a no_renegotiation alert as required by RFC5746. Some renegotiating 2427 TLS clients will continue a connection gracefully when they receive 2428 the alert. Unfortunately OpenSSL mishandled this alert and would hang 2429 waiting for a server hello which it will never receive. Now we treat a 2430 received no_renegotiation alert as a fatal error. This is because 2431 applications requesting a renegotiation might well expect it to succeed 2432 and would have no code in place to handle the server denying it so the 2433 only safe thing to do is to terminate the connection. 2434 [Steve Henson] 2435 2436 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if 2437 peer supports secure renegotiation and 0 otherwise. Print out peer 2438 renegotiation support in s_client/s_server. 2439 [Steve Henson] 2440 2441 *) Replace the highly broken and deprecated SPKAC certification method with 2442 the updated NID creation version. This should correctly handle UTF8. 2443 [Steve Henson] 2444 2445 *) Implement RFC5746. Re-enable renegotiation but require the extension 2446 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION 2447 turns out to be a bad idea. It has been replaced by 2448 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with 2449 SSL_CTX_set_options(). This is really not recommended unless you 2450 know what you are doing. 2451 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson] 2452 2453 *) Fixes to stateless session resumption handling. Use initial_ctx when 2454 issuing and attempting to decrypt tickets in case it has changed during 2455 servername handling. Use a non-zero length session ID when attempting 2456 stateless session resumption: this makes it possible to determine if 2457 a resumption has occurred immediately after receiving server hello 2458 (several places in OpenSSL subtly assume this) instead of later in 2459 the handshake. 2460 [Steve Henson] 2461 2462 *) The functions ENGINE_ctrl(), OPENSSL_isservice(), 2463 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error 2464 fixes for a few places where the return code is not checked 2465 correctly. 2466 [Julia Lawall <julia@diku.dk>] 2467 2468 *) Add --strict-warnings option to Configure script to include devteam 2469 warnings in other configurations. 2470 [Steve Henson] 2471 2472 *) Add support for --libdir option and LIBDIR variable in makefiles. This 2473 makes it possible to install openssl libraries in locations which 2474 have names other than "lib", for example "/usr/lib64" which some 2475 systems need. 2476 [Steve Henson, based on patch from Jeremy Utley] 2477 2478 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of 2479 X690 8.9.12 and can produce some misleading textual output of OIDs. 2480 [Steve Henson, reported by Dan Kaminsky] 2481 2482 *) Delete MD2 from algorithm tables. This follows the recommendation in 2483 several standards that it is not used in new applications due to 2484 several cryptographic weaknesses. For binary compatibility reasons 2485 the MD2 API is still compiled in by default. 2486 [Steve Henson] 2487 2488 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved 2489 and restored. 2490 [Steve Henson] 2491 2492 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and 2493 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name 2494 clash. 2495 [Guenter <lists@gknw.net>] 2496 2497 *) Fix the server certificate chain building code to use X509_verify_cert(), 2498 it used to have an ad-hoc builder which was unable to cope with anything 2499 other than a simple chain. 2500 [David Woodhouse <dwmw2@infradead.org>, Steve Henson] 2501 2502 *) Don't check self signed certificate signatures in X509_verify_cert() 2503 by default (a flag can override this): it just wastes time without 2504 adding any security. As a useful side effect self signed root CAs 2505 with non-FIPS digests are now usable in FIPS mode. 2506 [Steve Henson] 2507 2508 *) In dtls1_process_out_of_seq_message() the check if the current message 2509 is already buffered was missing. For every new message was memory 2510 allocated, allowing an attacker to perform an denial of service attack 2511 with sending out of seq handshake messages until there is no memory 2512 left. Additionally every future messege was buffered, even if the 2513 sequence number made no sense and would be part of another handshake. 2514 So only messages with sequence numbers less than 10 in advance will be 2515 buffered. (CVE-2009-1378) 2516 [Robin Seggelmann, discovered by Daniel Mentz] 2517 2518 *) Records are buffered if they arrive with a future epoch to be 2519 processed after finishing the corresponding handshake. There is 2520 currently no limitation to this buffer allowing an attacker to perform 2521 a DOS attack with sending records with future epochs until there is no 2522 memory left. This patch adds the pqueue_size() function to detemine 2523 the size of a buffer and limits the record buffer to 100 entries. 2524 (CVE-2009-1377) 2525 [Robin Seggelmann, discovered by Daniel Mentz] 2526 2527 *) Keep a copy of frag->msg_header.frag_len so it can be used after the 2528 parent structure is freed. (CVE-2009-1379) 2529 [Daniel Mentz] 2530 2531 *) Handle non-blocking I/O properly in SSL_shutdown() call. 2532 [Darryl Miles <darryl-mailinglists@netbauds.net>] 2533 2534 *) Add 2.5.4.* OIDs 2535 [Ilya O. <vrghost@gmail.com>] 2536 2537 Changes between 0.9.8k and 0.9.8l [5 Nov 2009] 2538 2539 *) Disable renegotiation completely - this fixes a severe security 2540 problem (CVE-2009-3555) at the cost of breaking all 2541 renegotiation. Renegotiation can be re-enabled by setting 2542 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at 2543 run-time. This is really not recommended unless you know what 2544 you're doing. 2545 [Ben Laurie] 2546 2547 Changes between 0.9.8j and 0.9.8k [25 Mar 2009] 2548 2549 *) Don't set val to NULL when freeing up structures, it is freed up by 2550 underlying code. If sizeof(void *) > sizeof(long) this can result in 2551 zeroing past the valid field. (CVE-2009-0789) 2552 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>] 2553 2554 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not 2555 checked correctly. This would allow some invalid signed attributes to 2556 appear to verify correctly. (CVE-2009-0591) 2557 [Ivan Nestlerode <inestlerode@us.ibm.com>] 2558 2559 *) Reject UniversalString and BMPString types with invalid lengths. This 2560 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have 2561 a legal length. (CVE-2009-0590) 2562 [Steve Henson] 2563 2564 *) Set S/MIME signing as the default purpose rather than setting it 2565 unconditionally. This allows applications to override it at the store 2566 level. 2567 [Steve Henson] 2568 2569 *) Permit restricted recursion of ASN1 strings. This is needed in practice 2570 to handle some structures. 2571 [Steve Henson] 2572 2573 *) Improve efficiency of mem_gets: don't search whole buffer each time 2574 for a '\n' 2575 [Jeremy Shapiro <jnshapir@us.ibm.com>] 2576 2577 *) New -hex option for openssl rand. 2578 [Matthieu Herrb] 2579 2580 *) Print out UTF8String and NumericString when parsing ASN1. 2581 [Steve Henson] 2582 2583 *) Support NumericString type for name components. 2584 [Steve Henson] 2585 2586 *) Allow CC in the environment to override the automatically chosen 2587 compiler. Note that nothing is done to ensure flags work with the 2588 chosen compiler. 2589 [Ben Laurie] 2590 2591 Changes between 0.9.8i and 0.9.8j [07 Jan 2009] 2592 2593 *) Properly check EVP_VerifyFinal() and similar return values 2594 (CVE-2008-5077). 2595 [Ben Laurie, Bodo Moeller, Google Security Team] 2596 2597 *) Enable TLS extensions by default. 2598 [Ben Laurie] 2599 2600 *) Allow the CHIL engine to be loaded, whether the application is 2601 multithreaded or not. (This does not release the developer from the 2602 obligation to set up the dynamic locking callbacks.) 2603 [Sander Temme <sander@temme.net>] 2604 2605 *) Use correct exit code if there is an error in dgst command. 2606 [Steve Henson; problem pointed out by Roland Dirlewanger] 2607 2608 *) Tweak Configure so that you need to say "experimental-jpake" to enable 2609 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications. 2610 [Bodo Moeller] 2611 2612 *) Add experimental JPAKE support, including demo authentication in 2613 s_client and s_server. 2614 [Ben Laurie] 2615 2616 *) Set the comparison function in v3_addr_canonize(). 2617 [Rob Austein <sra@hactrn.net>] 2618 2619 *) Add support for XMPP STARTTLS in s_client. 2620 [Philip Paeps <philip@freebsd.org>] 2621 2622 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior 2623 to ensure that even with this option, only ciphersuites in the 2624 server's preference list will be accepted. (Note that the option 2625 applies only when resuming a session, so the earlier behavior was 2626 just about the algorithm choice for symmetric cryptography.) 2627 [Bodo Moeller] 2628 2629 Changes between 0.9.8h and 0.9.8i [15 Sep 2008] 2630 2631 *) Fix NULL pointer dereference if a DTLS server received 2632 ChangeCipherSpec as first record (CVE-2009-1386). 2633 [PR #1679] 2634 2635 *) Fix a state transitition in s3_srvr.c and d1_srvr.c 2636 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...). 2637 [Nagendra Modadugu] 2638 2639 *) The fix in 0.9.8c that supposedly got rid of unsafe 2640 double-checked locking was incomplete for RSA blinding, 2641 addressing just one layer of what turns out to have been 2642 doubly unsafe triple-checked locking. 2643 2644 So now fix this for real by retiring the MONT_HELPER macro 2645 in crypto/rsa/rsa_eay.c. 2646 2647 [Bodo Moeller; problem pointed out by Marius Schilder] 2648 2649 *) Various precautionary measures: 2650 2651 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h). 2652 2653 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c). 2654 (NB: This would require knowledge of the secret session ticket key 2655 to exploit, in which case you'd be SOL either way.) 2656 2657 - Change bn_nist.c so that it will properly handle input BIGNUMs 2658 outside the expected range. 2659 2660 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG 2661 builds. 2662 2663 [Neel Mehta, Bodo Moeller] 2664 2665 *) Allow engines to be "soft loaded" - i.e. optionally don't die if 2666 the load fails. Useful for distros. 2667 [Ben Laurie and the FreeBSD team] 2668 2669 *) Add support for Local Machine Keyset attribute in PKCS#12 files. 2670 [Steve Henson] 2671 2672 *) Fix BN_GF2m_mod_arr() top-bit cleanup code. 2673 [Huang Ying] 2674 2675 *) Expand ENGINE to support engine supplied SSL client certificate functions. 2676 2677 This work was sponsored by Logica. 2678 [Steve Henson] 2679 2680 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows 2681 keystores. Support for SSL/TLS client authentication too. 2682 Not compiled unless enable-capieng specified to Configure. 2683 2684 This work was sponsored by Logica. 2685 [Steve Henson] 2686 2687 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using 2688 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain 2689 attribute creation routines such as certifcate requests and PKCS#12 2690 files. 2691 [Steve Henson] 2692 2693 Changes between 0.9.8g and 0.9.8h [28 May 2008] 2694 2695 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS 2696 handshake which could lead to a cilent crash as found using the 2697 Codenomicon TLS test suite (CVE-2008-1672) 2698 [Steve Henson, Mark Cox] 2699 2700 *) Fix double free in TLS server name extensions which could lead to 2701 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891) 2702 [Joe Orton] 2703 2704 *) Clear error queue in SSL_CTX_use_certificate_chain_file() 2705 2706 Clear the error queue to ensure that error entries left from 2707 older function calls do not interfere with the correct operation. 2708 [Lutz Jaenicke, Erik de Castro Lopo] 2709 2710 *) Remove root CA certificates of commercial CAs: 2711 2712 The OpenSSL project does not recommend any specific CA and does not 2713 have any policy with respect to including or excluding any CA. 2714 Therefore it does not make any sense to ship an arbitrary selection 2715 of root CA certificates with the OpenSSL software. 2716 [Lutz Jaenicke] 2717 2718 *) RSA OAEP patches to fix two separate invalid memory reads. 2719 The first one involves inputs when 'lzero' is greater than 2720 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes 2721 before the beginning of from). The second one involves inputs where 2722 the 'db' section contains nothing but zeroes (there is a one-byte 2723 invalid read after the end of 'db'). 2724 [Ivan Nestlerode <inestlerode@us.ibm.com>] 2725 2726 *) Partial backport from 0.9.9-dev: 2727 2728 Introduce bn_mul_mont (dedicated Montgomery multiplication 2729 procedure) as a candidate for BIGNUM assembler implementation. 2730 While 0.9.9-dev uses assembler for various architectures, only 2731 x86_64 is available by default here in the 0.9.8 branch, and 2732 32-bit x86 is available through a compile-time setting. 2733 2734 To try the 32-bit x86 assembler implementation, use Configure 2735 option "enable-montasm" (which exists only for this backport). 2736 2737 As "enable-montasm" for 32-bit x86 disclaims code stability 2738 anyway, in this constellation we activate additional code 2739 backported from 0.9.9-dev for further performance improvements, 2740 namely BN_from_montgomery_word. (To enable this otherwise, 2741 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".) 2742 2743 [Andy Polyakov (backport partially by Bodo Moeller)] 2744 2745 *) Add TLS session ticket callback. This allows an application to set 2746 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed 2747 values. This is useful for key rollover for example where several key 2748 sets may exist with different names. 2749 [Steve Henson] 2750 2751 *) Reverse ENGINE-internal logic for caching default ENGINE handles. 2752 This was broken until now in 0.9.8 releases, such that the only way 2753 a registered ENGINE could be used (assuming it initialises 2754 successfully on the host) was to explicitly set it as the default 2755 for the relevant algorithms. This is in contradiction with 0.9.7 2756 behaviour and the documentation. With this fix, when an ENGINE is 2757 registered into a given algorithm's table of implementations, the 2758 'uptodate' flag is reset so that auto-discovery will be used next 2759 time a new context for that algorithm attempts to select an 2760 implementation. 2761 [Ian Lister (tweaked by Geoff Thorpe)] 2762 2763 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9 2764 implemention in the following ways: 2765 2766 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be 2767 hard coded. 2768 2769 Lack of BER streaming support means one pass streaming processing is 2770 only supported if data is detached: setting the streaming flag is 2771 ignored for embedded content. 2772 2773 CMS support is disabled by default and must be explicitly enabled 2774 with the enable-cms configuration option. 2775 [Steve Henson] 2776 2777 *) Update the GMP engine glue to do direct copies between BIGNUM and 2778 mpz_t when openssl and GMP use the same limb size. Otherwise the 2779 existing "conversion via a text string export" trick is still used. 2780 [Paul Sheer <paulsheer@gmail.com>] 2781 2782 *) Zlib compression BIO. This is a filter BIO which compressed and 2783 uncompresses any data passed through it. 2784 [Steve Henson] 2785 2786 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement 2787 RFC3394 compatible AES key wrapping. 2788 [Steve Henson] 2789 2790 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0(): 2791 sets string data without copying. X509_ALGOR_set0() and 2792 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier) 2793 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data 2794 from an X509_ATTRIBUTE structure optionally checking it occurs only 2795 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied 2796 data. 2797 [Steve Henson] 2798 2799 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set() 2800 to get the expected BN_FLG_CONSTTIME behavior. 2801 [Bodo Moeller (Google)] 2802 2803 *) Netware support: 2804 2805 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets 2806 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT) 2807 - added some more tests to do_tests.pl 2808 - fixed RunningProcess usage so that it works with newer LIBC NDKs too 2809 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency 2810 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc, 2811 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc 2812 - various changes to netware.pl to enable gcc-cross builds on Win32 2813 platform 2814 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD) 2815 - various changes to fix missing prototype warnings 2816 - fixed x86nasm.pl to create correct asm files for NASM COFF output 2817 - added AES, WHIRLPOOL and CPUID assembler code to build files 2818 - added missing AES assembler make rules to mk1mf.pl 2819 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply 2820 [Guenter Knauf <eflash@gmx.net>] 2821 2822 *) Implement certificate status request TLS extension defined in RFC3546. 2823 A client can set the appropriate parameters and receive the encoded 2824 OCSP response via a callback. A server can query the supplied parameters 2825 and set the encoded OCSP response in the callback. Add simplified examples 2826 to s_client and s_server. 2827 [Steve Henson] 2828 2829 Changes between 0.9.8f and 0.9.8g [19 Oct 2007] 2830 2831 *) Fix various bugs: 2832 + Binary incompatibility of ssl_ctx_st structure 2833 + DTLS interoperation with non-compliant servers 2834 + Don't call get_session_cb() without proposed session 2835 + Fix ia64 assembler code 2836 [Andy Polyakov, Steve Henson] 2837 2838 Changes between 0.9.8e and 0.9.8f [11 Oct 2007] 2839 2840 *) DTLS Handshake overhaul. There were longstanding issues with 2841 OpenSSL DTLS implementation, which were making it impossible for 2842 RFC 4347 compliant client to communicate with OpenSSL server. 2843 Unfortunately just fixing these incompatibilities would "cut off" 2844 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e 2845 server keeps tolerating non RFC compliant syntax. The opposite is 2846 not true, 0.9.8f client can not communicate with earlier server. 2847 This update even addresses CVE-2007-4995. 2848 [Andy Polyakov] 2849 2850 *) Changes to avoid need for function casts in OpenSSL: some compilers 2851 (gcc 4.2 and later) reject their use. 2852 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>, 2853 Steve Henson] 2854 2855 *) Add RFC4507 support to OpenSSL. This includes the corrections in 2856 RFC4507bis. The encrypted ticket format is an encrypted encoded 2857 SSL_SESSION structure, that way new session features are automatically 2858 supported. 2859 2860 If a client application caches session in an SSL_SESSION structure 2861 support is transparent because tickets are now stored in the encoded 2862 SSL_SESSION. 2863 2864 The SSL_CTX structure automatically generates keys for ticket 2865 protection in servers so again support should be possible 2866 with no application modification. 2867 2868 If a client or server wishes to disable RFC4507 support then the option 2869 SSL_OP_NO_TICKET can be set. 2870 2871 Add a TLS extension debugging callback to allow the contents of any client 2872 or server extensions to be examined. 2873 2874 This work was sponsored by Google. 2875 [Steve Henson] 2876 2877 *) Add initial support for TLS extensions, specifically for the server_name 2878 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now 2879 have new members for a host name. The SSL data structure has an 2880 additional member SSL_CTX *initial_ctx so that new sessions can be 2881 stored in that context to allow for session resumption, even after the 2882 SSL has been switched to a new SSL_CTX in reaction to a client's 2883 server_name extension. 2884 2885 New functions (subject to change): 2886 2887 SSL_get_servername() 2888 SSL_get_servername_type() 2889 SSL_set_SSL_CTX() 2890 2891 New CTRL codes and macros (subject to change): 2892 2893 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB 2894 - SSL_CTX_set_tlsext_servername_callback() 2895 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG 2896 - SSL_CTX_set_tlsext_servername_arg() 2897 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name() 2898 2899 openssl s_client has a new '-servername ...' option. 2900 2901 openssl s_server has new options '-servername_host ...', '-cert2 ...', 2902 '-key2 ...', '-servername_fatal' (subject to change). This allows 2903 testing the HostName extension for a specific single host name ('-cert' 2904 and '-key' remain fallbacks for handshakes without HostName 2905 negotiation). If the unrecogninzed_name alert has to be sent, this by 2906 default is a warning; it becomes fatal with the '-servername_fatal' 2907 option. 2908 2909 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson] 2910 2911 *) Add AES and SSE2 assembly language support to VC++ build. 2912 [Steve Henson] 2913 2914 *) Mitigate attack on final subtraction in Montgomery reduction. 2915 [Andy Polyakov] 2916 2917 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0 2918 (which previously caused an internal error). 2919 [Bodo Moeller] 2920 2921 *) Squeeze another 10% out of IGE mode when in != out. 2922 [Ben Laurie] 2923 2924 *) AES IGE mode speedup. 2925 [Dean Gaudet (Google)] 2926 2927 *) Add the Korean symmetric 128-bit cipher SEED (see 2928 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and 2929 add SEED ciphersuites from RFC 4162: 2930 2931 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA" 2932 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA" 2933 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA" 2934 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA" 2935 2936 To minimize changes between patchlevels in the OpenSSL 0.9.8 2937 series, SEED remains excluded from compilation unless OpenSSL 2938 is configured with 'enable-seed'. 2939 [KISA, Bodo Moeller] 2940 2941 *) Mitigate branch prediction attacks, which can be practical if a 2942 single processor is shared, allowing a spy process to extract 2943 information. For detailed background information, see 2944 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron, 2945 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL 2946 and Necessary Software Countermeasures"). The core of the change 2947 are new versions BN_div_no_branch() and 2948 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(), 2949 respectively, which are slower, but avoid the security-relevant 2950 conditional branches. These are automatically called by BN_div() 2951 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one 2952 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to 2953 remove a conditional branch. 2954 2955 BN_FLG_CONSTTIME is the new name for the previous 2956 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just 2957 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag 2958 in the exponent causes BN_mod_exp_mont() to use the alternative 2959 implementation in BN_mod_exp_mont_consttime().) The old name 2960 remains as a deprecated alias. 2961 2962 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general 2963 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses 2964 constant-time implementations for more than just exponentiation. 2965 Here too the old name is kept as a deprecated alias. 2966 2967 BN_BLINDING_new() will now use BN_dup() for the modulus so that 2968 the BN_BLINDING structure gets an independent copy of the 2969 modulus. This means that the previous "BIGNUM *m" argument to 2970 BN_BLINDING_new() and to BN_BLINDING_create_param() now 2971 essentially becomes "const BIGNUM *m", although we can't actually 2972 change this in the header file before 0.9.9. It allows 2973 RSA_setup_blinding() to use BN_with_flags() on the modulus to 2974 enable BN_FLG_CONSTTIME. 2975 2976 [Matthew D Wood (Intel Corp)] 2977 2978 *) In the SSL/TLS server implementation, be strict about session ID 2979 context matching (which matters if an application uses a single 2980 external cache for different purposes). Previously, 2981 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was 2982 set. This did ensure strict client verification, but meant that, 2983 with applications using a single external cache for quite 2984 different requirements, clients could circumvent ciphersuite 2985 restrictions for a given session ID context by starting a session 2986 in a different context. 2987 [Bodo Moeller] 2988 2989 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 2990 a ciphersuite string such as "DEFAULT:RSA" cannot enable 2991 authentication-only ciphersuites. 2992 [Bodo Moeller] 2993 2994 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was 2995 not complete and could lead to a possible single byte overflow 2996 (CVE-2007-5135) [Ben Laurie] 2997 2998 Changes between 0.9.8d and 0.9.8e [23 Feb 2007] 2999 3000 *) Since AES128 and AES256 (and similarly Camellia128 and 3001 Camellia256) share a single mask bit in the logic of 3002 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 3003 kludge to work properly if AES128 is available and AES256 isn't 3004 (or if Camellia128 is available and Camellia256 isn't). 3005 [Victor Duchovni] 3006 3007 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c 3008 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters): 3009 When a point or a seed is encoded in a BIT STRING, we need to 3010 prevent the removal of trailing zero bits to get the proper DER 3011 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case 3012 of a NamedBitList, for which trailing 0 bits need to be removed.) 3013 [Bodo Moeller] 3014 3015 *) Have SSL/TLS server implementation tolerate "mismatched" record 3016 protocol version while receiving ClientHello even if the 3017 ClientHello is fragmented. (The server can't insist on the 3018 particular protocol version it has chosen before the ServerHello 3019 message has informed the client about his choice.) 3020 [Bodo Moeller] 3021 3022 *) Add RFC 3779 support. 3023 [Rob Austein for ARIN, Ben Laurie] 3024 3025 *) Load error codes if they are not already present instead of using a 3026 static variable. This allows them to be cleanly unloaded and reloaded. 3027 Improve header file function name parsing. 3028 [Steve Henson] 3029 3030 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO 3031 or CAPABILITY handshake as required by RFCs. 3032 [Goetz Babin-Ebell] 3033 3034 Changes between 0.9.8c and 0.9.8d [28 Sep 2006] 3035 3036 *) Introduce limits to prevent malicious keys being able to 3037 cause a denial of service. (CVE-2006-2940) 3038 [Steve Henson, Bodo Moeller] 3039 3040 *) Fix ASN.1 parsing of certain invalid structures that can result 3041 in a denial of service. (CVE-2006-2937) [Steve Henson] 3042 3043 *) Fix buffer overflow in SSL_get_shared_ciphers() function. 3044 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team] 3045 3046 *) Fix SSL client code which could crash if connecting to a 3047 malicious SSLv2 server. (CVE-2006-4343) 3048 [Tavis Ormandy and Will Drewry, Google Security Team] 3049 3050 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites 3051 match only those. Before that, "AES256-SHA" would be interpreted 3052 as a pattern and match "AES128-SHA" too (since AES128-SHA got 3053 the same strength classification in 0.9.7h) as we currently only 3054 have a single AES bit in the ciphersuite description bitmap. 3055 That change, however, also applied to ciphersuite strings such as 3056 "RC4-MD5" that intentionally matched multiple ciphersuites -- 3057 namely, SSL 2.0 ciphersuites in addition to the more common ones 3058 from SSL 3.0/TLS 1.0. 3059 3060 So we change the selection algorithm again: Naming an explicit 3061 ciphersuite selects this one ciphersuite, and any other similar 3062 ciphersuite (same bitmap) from *other* protocol versions. 3063 Thus, "RC4-MD5" again will properly select both the SSL 2.0 3064 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite. 3065 3066 Since SSL 2.0 does not have any ciphersuites for which the 3067 128/256 bit distinction would be relevant, this works for now. 3068 The proper fix will be to use different bits for AES128 and 3069 AES256, which would have avoided the problems from the beginning; 3070 however, bits are scarce, so we can only do this in a new release 3071 (not just a patchlevel) when we can change the SSL_CIPHER 3072 definition to split the single 'unsigned long mask' bitmap into 3073 multiple values to extend the available space. 3074 3075 [Bodo Moeller] 3076 3077 Changes between 0.9.8b and 0.9.8c [05 Sep 2006] 3078 3079 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 3080 (CVE-2006-4339) [Ben Laurie and Google Security Team] 3081 3082 *) Add AES IGE and biIGE modes. 3083 [Ben Laurie] 3084 3085 *) Change the Unix randomness entropy gathering to use poll() when 3086 possible instead of select(), since the latter has some 3087 undesirable limitations. 3088 [Darryl Miles via Richard Levitte and Bodo Moeller] 3089 3090 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special 3091 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites 3092 cannot be implicitly activated as part of, e.g., the "AES" alias. 3093 However, please upgrade to OpenSSL 0.9.9[-dev] for 3094 non-experimental use of the ECC ciphersuites to get TLS extension 3095 support, which is required for curve and point format negotiation 3096 to avoid potential handshake problems. 3097 [Bodo Moeller] 3098 3099 *) Disable rogue ciphersuites: 3100 3101 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 3102 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 3103 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 3104 3105 The latter two were purportedly from 3106 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 3107 appear there. 3108 3109 Also deactivate the remaining ciphersuites from 3110 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 3111 unofficial, and the ID has long expired. 3112 [Bodo Moeller] 3113 3114 *) Fix RSA blinding Heisenbug (problems sometimes occured on 3115 dual-core machines) and other potential thread-safety issues. 3116 [Bodo Moeller] 3117 3118 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key 3119 versions), which is now available for royalty-free use 3120 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html). 3121 Also, add Camellia TLS ciphersuites from RFC 4132. 3122 3123 To minimize changes between patchlevels in the OpenSSL 0.9.8 3124 series, Camellia remains excluded from compilation unless OpenSSL 3125 is configured with 'enable-camellia'. 3126 [NTT] 3127 3128 *) Disable the padding bug check when compression is in use. The padding 3129 bug check assumes the first packet is of even length, this is not 3130 necessarily true if compresssion is enabled and can result in false 3131 positives causing handshake failure. The actual bug test is ancient 3132 code so it is hoped that implementations will either have fixed it by 3133 now or any which still have the bug do not support compression. 3134 [Steve Henson] 3135 3136 Changes between 0.9.8a and 0.9.8b [04 May 2006] 3137 3138 *) When applying a cipher rule check to see if string match is an explicit 3139 cipher suite and only match that one cipher suite if it is. 3140 [Steve Henson] 3141 3142 *) Link in manifests for VC++ if needed. 3143 [Austin Ziegler <halostatue@gmail.com>] 3144 3145 *) Update support for ECC-based TLS ciphersuites according to 3146 draft-ietf-tls-ecc-12.txt with proposed changes (but without 3147 TLS extensions, which are supported starting with the 0.9.9 3148 branch, not in the OpenSSL 0.9.8 branch). 3149 [Douglas Stebila] 3150 3151 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support 3152 opaque EVP_CIPHER_CTX handling. 3153 [Steve Henson] 3154 3155 *) Fixes and enhancements to zlib compression code. We now only use 3156 "zlib1.dll" and use the default __cdecl calling convention on Win32 3157 to conform with the standards mentioned here: 3158 http://www.zlib.net/DLL_FAQ.txt 3159 Static zlib linking now works on Windows and the new --with-zlib-include 3160 --with-zlib-lib options to Configure can be used to supply the location 3161 of the headers and library. Gracefully handle case where zlib library 3162 can't be loaded. 3163 [Steve Henson] 3164 3165 *) Several fixes and enhancements to the OID generation code. The old code 3166 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't 3167 handle numbers larger than ULONG_MAX, truncated printing and had a 3168 non standard OBJ_obj2txt() behaviour. 3169 [Steve Henson] 3170 3171 *) Add support for building of engines under engine/ as shared libraries 3172 under VC++ build system. 3173 [Steve Henson] 3174 3175 *) Corrected the numerous bugs in the Win32 path splitter in DSO. 3176 Hopefully, we will not see any false combination of paths any more. 3177 [Richard Levitte] 3178 3179 Changes between 0.9.8 and 0.9.8a [11 Oct 2005] 3180 3181 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 3182 (part of SSL_OP_ALL). This option used to disable the 3183 countermeasure against man-in-the-middle protocol-version 3184 rollback in the SSL 2.0 server implementation, which is a bad 3185 idea. (CVE-2005-2969) 3186 3187 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 3188 for Information Security, National Institute of Advanced Industrial 3189 Science and Technology [AIST], Japan)] 3190 3191 *) Add two function to clear and return the verify parameter flags. 3192 [Steve Henson] 3193 3194 *) Keep cipherlists sorted in the source instead of sorting them at 3195 runtime, thus removing the need for a lock. 3196 [Nils Larsch] 3197 3198 *) Avoid some small subgroup attacks in Diffie-Hellman. 3199 [Nick Mathewson and Ben Laurie] 3200 3201 *) Add functions for well-known primes. 3202 [Nick Mathewson] 3203 3204 *) Extended Windows CE support. 3205 [Satoshi Nakamura and Andy Polyakov] 3206 3207 *) Initialize SSL_METHOD structures at compile time instead of during 3208 runtime, thus removing the need for a lock. 3209 [Steve Henson] 3210 3211 *) Make PKCS7_decrypt() work even if no certificate is supplied by 3212 attempting to decrypt each encrypted key in turn. Add support to 3213 smime utility. 3214 [Steve Henson] 3215 3216 Changes between 0.9.7h and 0.9.8 [05 Jul 2005] 3217 3218 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after 3219 OpenSSL 0.9.8.] 3220 3221 *) Add libcrypto.pc and libssl.pc for those who feel they need them. 3222 [Richard Levitte] 3223 3224 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private 3225 key into the same file any more. 3226 [Richard Levitte] 3227 3228 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors. 3229 [Andy Polyakov] 3230 3231 *) Add -utf8 command line and config file option to 'ca'. 3232 [Stefan <stf@udoma.org] 3233 3234 *) Removed the macro des_crypt(), as it seems to conflict with some 3235 libraries. Use DES_crypt(). 3236 [Richard Levitte] 3237 3238 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This 3239 involves renaming the source and generated shared-libs for 3240 both. The engines will accept the corrected or legacy ids 3241 ('ncipher' and '4758_cca' respectively) when binding. NB, 3242 this only applies when building 'shared'. 3243 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe] 3244 3245 *) Add attribute functions to EVP_PKEY structure. Modify 3246 PKCS12_create() to recognize a CSP name attribute and 3247 use it. Make -CSP option work again in pkcs12 utility. 3248 [Steve Henson] 3249 3250 *) Add new functionality to the bn blinding code: 3251 - automatic re-creation of the BN_BLINDING parameters after 3252 a fixed number of uses (currently 32) 3253 - add new function for parameter creation 3254 - introduce flags to control the update behaviour of the 3255 BN_BLINDING parameters 3256 - hide BN_BLINDING structure 3257 Add a second BN_BLINDING slot to the RSA structure to improve 3258 performance when a single RSA object is shared among several 3259 threads. 3260 [Nils Larsch] 3261 3262 *) Add support for DTLS. 3263 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie] 3264 3265 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1) 3266 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file() 3267 [Walter Goulet] 3268 3269 *) Remove buggy and incompletet DH cert support from 3270 ssl/ssl_rsa.c and ssl/s3_both.c 3271 [Nils Larsch] 3272 3273 *) Use SHA-1 instead of MD5 as the default digest algorithm for 3274 the apps/openssl applications. 3275 [Nils Larsch] 3276 3277 *) Compile clean with "-Wall -Wmissing-prototypes 3278 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently 3279 DEBUG_SAFESTACK must also be set. 3280 [Ben Laurie] 3281 3282 *) Change ./Configure so that certain algorithms can be disabled by default. 3283 The new counterpiece to "no-xxx" is "enable-xxx". 3284 3285 The patented RC5 and MDC2 algorithms will now be disabled unless 3286 "enable-rc5" and "enable-mdc2", respectively, are specified. 3287 3288 (IDEA remains enabled despite being patented. This is because IDEA 3289 is frequently required for interoperability, and there is no license 3290 fee for non-commercial use. As before, "no-idea" can be used to 3291 avoid this algorithm.) 3292 3293 [Bodo Moeller] 3294 3295 *) Add processing of proxy certificates (see RFC 3820). This work was 3296 sponsored by KTH (The Royal Institute of Technology in Stockholm) and 3297 EGEE (Enabling Grids for E-science in Europe). 3298 [Richard Levitte] 3299 3300 *) RC4 performance overhaul on modern architectures/implementations, such 3301 as Intel P4, IA-64 and AMD64. 3302 [Andy Polyakov] 3303 3304 *) New utility extract-section.pl. This can be used specify an alternative 3305 section number in a pod file instead of having to treat each file as 3306 a separate case in Makefile. This can be done by adding two lines to the 3307 pod file: 3308 3309 =for comment openssl_section:XXX 3310 3311 The blank line is mandatory. 3312 3313 [Steve Henson] 3314 3315 *) New arguments -certform, -keyform and -pass for s_client and s_server 3316 to allow alternative format key and certificate files and passphrase 3317 sources. 3318 [Steve Henson] 3319 3320 *) New structure X509_VERIFY_PARAM which combines current verify parameters, 3321 update associated structures and add various utility functions. 3322 3323 Add new policy related verify parameters, include policy checking in 3324 standard verify code. Enhance 'smime' application with extra parameters 3325 to support policy checking and print out. 3326 [Steve Henson] 3327 3328 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3 3329 Nehemiah processors. These extensions support AES encryption in hardware 3330 as well as RNG (though RNG support is currently disabled). 3331 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov] 3332 3333 *) Deprecate BN_[get|set]_params() functions (they were ignored internally). 3334 [Geoff Thorpe] 3335 3336 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented. 3337 [Andy Polyakov and a number of other people] 3338 3339 *) Improved PowerPC platform support. Most notably BIGNUM assembler 3340 implementation contributed by IBM. 3341 [Suresh Chari, Peter Waltenberg, Andy Polyakov] 3342 3343 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public 3344 exponent rather than 'unsigned long'. There is a corresponding change to 3345 the new 'rsa_keygen' element of the RSA_METHOD structure. 3346 [Jelte Jansen, Geoff Thorpe] 3347 3348 *) Functionality for creating the initial serial number file is now 3349 moved from CA.pl to the 'ca' utility with a new option -create_serial. 3350 3351 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial 3352 number file to 1, which is bound to cause problems. To avoid 3353 the problems while respecting compatibility between different 0.9.7 3354 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in 3355 CA.pl for serial number initialization. With the new release 0.9.8, 3356 we can fix the problem directly in the 'ca' utility.) 3357 [Steve Henson] 3358 3359 *) Reduced header interdepencies by declaring more opaque objects in 3360 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will 3361 give fewer recursive includes, which could break lazy source code - so 3362 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always, 3363 developers should define this symbol when building and using openssl to 3364 ensure they track the recommended behaviour, interfaces, [etc], but 3365 backwards-compatible behaviour prevails when this isn't defined. 3366 [Geoff Thorpe] 3367 3368 *) New function X509_POLICY_NODE_print() which prints out policy nodes. 3369 [Steve Henson] 3370 3371 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality. 3372 This will generate a random key of the appropriate length based on the 3373 cipher context. The EVP_CIPHER can provide its own random key generation 3374 routine to support keys of a specific form. This is used in the des and 3375 3des routines to generate a key of the correct parity. Update S/MIME 3376 code to use new functions and hence generate correct parity DES keys. 3377 Add EVP_CHECK_DES_KEY #define to return an error if the key is not 3378 valid (weak or incorrect parity). 3379 [Steve Henson] 3380 3381 *) Add a local set of CRLs that can be used by X509_verify_cert() as well 3382 as looking them up. This is useful when the verified structure may contain 3383 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs 3384 present unless the new PKCS7_NO_CRL flag is asserted. 3385 [Steve Henson] 3386 3387 *) Extend ASN1 oid configuration module. It now additionally accepts the 3388 syntax: 3389 3390 shortName = some long name, 1.2.3.4 3391 [Steve Henson] 3392 3393 *) Reimplemented the BN_CTX implementation. There is now no more static 3394 limitation on the number of variables it can handle nor the depth of the 3395 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack 3396 information can now expand as required, and rather than having a single 3397 static array of bignums, BN_CTX now uses a linked-list of such arrays 3398 allowing it to expand on demand whilst maintaining the usefulness of 3399 BN_CTX's "bundling". 3400 [Geoff Thorpe] 3401 3402 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD 3403 to allow all RSA operations to function using a single BN_CTX. 3404 [Geoff Thorpe] 3405 3406 *) Preliminary support for certificate policy evaluation and checking. This 3407 is initially intended to pass the tests outlined in "Conformance Testing 3408 of Relying Party Client Certificate Path Processing Logic" v1.07. 3409 [Steve Henson] 3410 3411 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and 3412 remained unused and not that useful. A variety of other little bignum 3413 tweaks and fixes have also been made continuing on from the audit (see 3414 below). 3415 [Geoff Thorpe] 3416 3417 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with 3418 associated ASN1, EVP and SSL functions and old ASN1 macros. 3419 [Richard Levitte] 3420 3421 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results, 3422 and this should never fail. So the return value from the use of 3423 BN_set_word() (which can fail due to needless expansion) is now deprecated; 3424 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro. 3425 [Geoff Thorpe] 3426 3427 *) BN_CTX_get() should return zero-valued bignums, providing the same 3428 initialised value as BN_new(). 3429 [Geoff Thorpe, suggested by Ulf M�ller] 3430 3431 *) Support for inhibitAnyPolicy certificate extension. 3432 [Steve Henson] 3433 3434 *) An audit of the BIGNUM code is underway, for which debugging code is 3435 enabled when BN_DEBUG is defined. This makes stricter enforcements on what 3436 is considered valid when processing BIGNUMs, and causes execution to 3437 assert() when a problem is discovered. If BN_DEBUG_RAND is defined, 3438 further steps are taken to deliberately pollute unused data in BIGNUM 3439 structures to try and expose faulty code further on. For now, openssl will 3440 (in its default mode of operation) continue to tolerate the inconsistent 3441 forms that it has tolerated in the past, but authors and packagers should 3442 consider trying openssl and their own applications when compiled with 3443 these debugging symbols defined. It will help highlight potential bugs in 3444 their own code, and will improve the test coverage for OpenSSL itself. At 3445 some point, these tighter rules will become openssl's default to improve 3446 maintainability, though the assert()s and other overheads will remain only 3447 in debugging configurations. See bn.h for more details. 3448 [Geoff Thorpe, Nils Larsch, Ulf M�ller] 3449 3450 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure 3451 that can only be obtained through BN_CTX_new() (which implicitly 3452 initialises it). The presence of this function only made it possible 3453 to overwrite an existing structure (and cause memory leaks). 3454 [Geoff Thorpe] 3455 3456 *) Because of the callback-based approach for implementing LHASH as a 3457 template type, lh_insert() adds opaque objects to hash-tables and 3458 lh_doall() or lh_doall_arg() are typically used with a destructor callback 3459 to clean up those corresponding objects before destroying the hash table 3460 (and losing the object pointers). So some over-zealous constifications in 3461 LHASH have been relaxed so that lh_insert() does not take (nor store) the 3462 objects as "const" and the lh_doall[_arg] callback wrappers are not 3463 prototyped to have "const" restrictions on the object pointers they are 3464 given (and so aren't required to cast them away any more). 3465 [Geoff Thorpe] 3466 3467 *) The tmdiff.h API was so ugly and minimal that our own timing utility 3468 (speed) prefers to use its own implementation. The two implementations 3469 haven't been consolidated as yet (volunteers?) but the tmdiff API has had 3470 its object type properly exposed (MS_TM) instead of casting to/from "char 3471 *". This may still change yet if someone realises MS_TM and "ms_time_***" 3472 aren't necessarily the greatest nomenclatures - but this is what was used 3473 internally to the implementation so I've used that for now. 3474 [Geoff Thorpe] 3475 3476 *) Ensure that deprecated functions do not get compiled when 3477 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of 3478 the self-tests were still using deprecated key-generation functions so 3479 these have been updated also. 3480 [Geoff Thorpe] 3481 3482 *) Reorganise PKCS#7 code to separate the digest location functionality 3483 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest(). 3484 New function PKCS7_set_digest() to set the digest type for PKCS#7 3485 digestedData type. Add additional code to correctly generate the 3486 digestedData type and add support for this type in PKCS7 initialization 3487 functions. 3488 [Steve Henson] 3489 3490 *) New function PKCS7_set0_type_other() this initializes a PKCS7 3491 structure of type "other". 3492 [Steve Henson] 3493 3494 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making 3495 sure the loop does correctly stop and breaking ("division by zero") 3496 modulus operations are not performed. The (pre-generated) prime 3497 table crypto/bn/bn_prime.h was already correct, but it could not be 3498 re-generated on some platforms because of the "division by zero" 3499 situation in the script. 3500 [Ralf S. Engelschall] 3501 3502 *) Update support for ECC-based TLS ciphersuites according to 3503 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with 3504 SHA-1 now is only used for "small" curves (where the 3505 representation of a field element takes up to 24 bytes); for 3506 larger curves, the field element resulting from ECDH is directly 3507 used as premaster secret. 3508 [Douglas Stebila (Sun Microsystems Laboratories)] 3509 3510 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2 3511 curve secp160r1 to the tests. 3512 [Douglas Stebila (Sun Microsystems Laboratories)] 3513 3514 *) Add the possibility to load symbols globally with DSO. 3515 [G�tz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte] 3516 3517 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better 3518 control of the error stack. 3519 [Richard Levitte] 3520 3521 *) Add support for STORE in ENGINE. 3522 [Richard Levitte] 3523 3524 *) Add the STORE type. The intention is to provide a common interface 3525 to certificate and key stores, be they simple file-based stores, or 3526 HSM-type store, or LDAP stores, or... 3527 NOTE: The code is currently UNTESTED and isn't really used anywhere. 3528 [Richard Levitte] 3529 3530 *) Add a generic structure called OPENSSL_ITEM. This can be used to 3531 pass a list of arguments to any function as well as provide a way 3532 for a function to pass data back to the caller. 3533 [Richard Levitte] 3534 3535 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup() 3536 works like BUF_strdup() but can be used to duplicate a portion of 3537 a string. The copy gets NUL-terminated. BUF_memdup() duplicates 3538 a memory area. 3539 [Richard Levitte] 3540 3541 *) Add the function sk_find_ex() which works like sk_find(), but will 3542 return an index to an element even if an exact match couldn't be 3543 found. The index is guaranteed to point at the element where the 3544 searched-for key would be inserted to preserve sorting order. 3545 [Richard Levitte] 3546 3547 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but 3548 takes an extra flags argument for optional functionality. Currently, 3549 the following flags are defined: 3550 3551 OBJ_BSEARCH_VALUE_ON_NOMATCH 3552 This one gets OBJ_bsearch_ex() to return a pointer to the first 3553 element where the comparing function returns a negative or zero 3554 number. 3555 3556 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH 3557 This one gets OBJ_bsearch_ex() to return a pointer to the first 3558 element where the comparing function returns zero. This is useful 3559 if there are more than one element where the comparing function 3560 returns zero. 3561 [Richard Levitte] 3562 3563 *) Make it possible to create self-signed certificates with 'openssl ca' 3564 in such a way that the self-signed certificate becomes part of the 3565 CA database and uses the same mechanisms for serial number generation 3566 as all other certificate signing. The new flag '-selfsign' enables 3567 this functionality. Adapt CA.sh and CA.pl.in. 3568 [Richard Levitte] 3569 3570 *) Add functionality to check the public key of a certificate request 3571 against a given private. This is useful to check that a certificate 3572 request can be signed by that key (self-signing). 3573 [Richard Levitte] 3574 3575 *) Make it possible to have multiple active certificates with the same 3576 subject in the CA index file. This is done only if the keyword 3577 'unique_subject' is set to 'no' in the main CA section (default 3578 if 'CA_default') of the configuration file. The value is saved 3579 with the database itself in a separate index attribute file, 3580 named like the index file with '.attr' appended to the name. 3581 [Richard Levitte] 3582 3583 *) Generate muti valued AVAs using '+' notation in config files for 3584 req and dirName. 3585 [Steve Henson] 3586 3587 *) Support for nameConstraints certificate extension. 3588 [Steve Henson] 3589 3590 *) Support for policyConstraints certificate extension. 3591 [Steve Henson] 3592 3593 *) Support for policyMappings certificate extension. 3594 [Steve Henson] 3595 3596 *) Make sure the default DSA_METHOD implementation only uses its 3597 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL, 3598 and change its own handlers to be NULL so as to remove unnecessary 3599 indirection. This lets alternative implementations fallback to the 3600 default implementation more easily. 3601 [Geoff Thorpe] 3602 3603 *) Support for directoryName in GeneralName related extensions 3604 in config files. 3605 [Steve Henson] 3606 3607 *) Make it possible to link applications using Makefile.shared. 3608 Make that possible even when linking against static libraries! 3609 [Richard Levitte] 3610 3611 *) Support for single pass processing for S/MIME signing. This now 3612 means that S/MIME signing can be done from a pipe, in addition 3613 cleartext signing (multipart/signed type) is effectively streaming 3614 and the signed data does not need to be all held in memory. 3615 3616 This is done with a new flag PKCS7_STREAM. When this flag is set 3617 PKCS7_sign() only initializes the PKCS7 structure and the actual signing 3618 is done after the data is output (and digests calculated) in 3619 SMIME_write_PKCS7(). 3620 [Steve Henson] 3621 3622 *) Add full support for -rpath/-R, both in shared libraries and 3623 applications, at least on the platforms where it's known how 3624 to do it. 3625 [Richard Levitte] 3626 3627 *) In crypto/ec/ec_mult.c, implement fast point multiplication with 3628 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult() 3629 will now compute a table of multiples of the generator that 3630 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul() 3631 faster (notably in the case of a single point multiplication, 3632 scalar * generator). 3633 [Nils Larsch, Bodo Moeller] 3634 3635 *) IPv6 support for certificate extensions. The various extensions 3636 which use the IP:a.b.c.d can now take IPv6 addresses using the 3637 formats of RFC1884 2.2 . IPv6 addresses are now also displayed 3638 correctly. 3639 [Steve Henson] 3640 3641 *) Added an ENGINE that implements RSA by performing private key 3642 exponentiations with the GMP library. The conversions to and from 3643 GMP's mpz_t format aren't optimised nor are any montgomery forms 3644 cached, and on x86 it appears OpenSSL's own performance has caught up. 3645 However there are likely to be other architectures where GMP could 3646 provide a boost. This ENGINE is not built in by default, but it can be 3647 specified at Configure time and should be accompanied by the necessary 3648 linker additions, eg; 3649 ./config -DOPENSSL_USE_GMP -lgmp 3650 [Geoff Thorpe] 3651 3652 *) "openssl engine" will not display ENGINE/DSO load failure errors when 3653 testing availability of engines with "-t" - the old behaviour is 3654 produced by increasing the feature's verbosity with "-tt". 3655 [Geoff Thorpe] 3656 3657 *) ECDSA routines: under certain error conditions uninitialized BN objects 3658 could be freed. Solution: make sure initialization is performed early 3659 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de> 3660 via PR#459) 3661 [Lutz Jaenicke] 3662 3663 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD 3664 and DH_METHOD (eg. by ENGINE implementations) to override the normal 3665 software implementations. For DSA and DH, parameter generation can 3666 also be overriden by providing the appropriate method callbacks. 3667 [Geoff Thorpe] 3668 3669 *) Change the "progress" mechanism used in key-generation and 3670 primality testing to functions that take a new BN_GENCB pointer in 3671 place of callback/argument pairs. The new API functions have "_ex" 3672 postfixes and the older functions are reimplemented as wrappers for 3673 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide 3674 declarations of the old functions to help (graceful) attempts to 3675 migrate to the new functions. Also, the new key-generation API 3676 functions operate on a caller-supplied key-structure and return 3677 success/failure rather than returning a key or NULL - this is to 3678 help make "keygen" another member function of RSA_METHOD etc. 3679 3680 Example for using the new callback interface: 3681 3682 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...; 3683 void *my_arg = ...; 3684 BN_GENCB my_cb; 3685 3686 BN_GENCB_set(&my_cb, my_callback, my_arg); 3687 3688 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb); 3689 /* For the meaning of a, b in calls to my_callback(), see the 3690 * documentation of the function that calls the callback. 3691 * cb will point to my_cb; my_arg can be retrieved as cb->arg. 3692 * my_callback should return 1 if it wants BN_is_prime_ex() 3693 * to continue, or 0 to stop. 3694 */ 3695 3696 [Geoff Thorpe] 3697 3698 *) Change the ZLIB compression method to be stateful, and make it 3699 available to TLS with the number defined in 3700 draft-ietf-tls-compression-04.txt. 3701 [Richard Levitte] 3702 3703 *) Add the ASN.1 structures and functions for CertificatePair, which 3704 is defined as follows (according to X.509_4thEditionDraftV6.pdf): 3705 3706 CertificatePair ::= SEQUENCE { 3707 forward [0] Certificate OPTIONAL, 3708 reverse [1] Certificate OPTIONAL, 3709 -- at least one of the pair shall be present -- } 3710 3711 Also implement the PEM functions to read and write certificate 3712 pairs, and defined the PEM tag as "CERTIFICATE PAIR". 3713 3714 This needed to be defined, mostly for the sake of the LDAP 3715 attribute crossCertificatePair, but may prove useful elsewhere as 3716 well. 3717 [Richard Levitte] 3718 3719 *) Make it possible to inhibit symlinking of shared libraries in 3720 Makefile.shared, for Cygwin's sake. 3721 [Richard Levitte] 3722 3723 *) Extend the BIGNUM API by creating a function 3724 void BN_set_negative(BIGNUM *a, int neg); 3725 and a macro that behave like 3726 int BN_is_negative(const BIGNUM *a); 3727 3728 to avoid the need to access 'a->neg' directly in applications. 3729 [Nils Larsch] 3730 3731 *) Implement fast modular reduction for pseudo-Mersenne primes 3732 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c). 3733 EC_GROUP_new_curve_GFp() will now automatically use this 3734 if applicable. 3735 [Nils Larsch <nla@trustcenter.de>] 3736 3737 *) Add new lock type (CRYPTO_LOCK_BN). 3738 [Bodo Moeller] 3739 3740 *) Change the ENGINE framework to automatically load engines 3741 dynamically from specific directories unless they could be 3742 found to already be built in or loaded. Move all the 3743 current engines except for the cryptodev one to a new 3744 directory engines/. 3745 The engines in engines/ are built as shared libraries if 3746 the "shared" options was given to ./Configure or ./config. 3747 Otherwise, they are inserted in libcrypto.a. 3748 /usr/local/ssl/engines is the default directory for dynamic 3749 engines, but that can be overriden at configure time through 3750 the usual use of --prefix and/or --openssldir, and at run 3751 time with the environment variable OPENSSL_ENGINES. 3752 [Geoff Thorpe and Richard Levitte] 3753 3754 *) Add Makefile.shared, a helper makefile to build shared 3755 libraries. Addapt Makefile.org. 3756 [Richard Levitte] 3757 3758 *) Add version info to Win32 DLLs. 3759 [Peter 'Luna' Runestig" <peter@runestig.com>] 3760 3761 *) Add new 'medium level' PKCS#12 API. Certificates and keys 3762 can be added using this API to created arbitrary PKCS#12 3763 files while avoiding the low level API. 3764 3765 New options to PKCS12_create(), key or cert can be NULL and 3766 will then be omitted from the output file. The encryption 3767 algorithm NIDs can be set to -1 for no encryption, the mac 3768 iteration count can be set to 0 to omit the mac. 3769 3770 Enhance pkcs12 utility by making the -nokeys and -nocerts 3771 options work when creating a PKCS#12 file. New option -nomac 3772 to omit the mac, NONE can be set for an encryption algorithm. 3773 New code is modified to use the enhanced PKCS12_create() 3774 instead of the low level API. 3775 [Steve Henson] 3776 3777 *) Extend ASN1 encoder to support indefinite length constructed 3778 encoding. This can output sequences tags and octet strings in 3779 this form. Modify pk7_asn1.c to support indefinite length 3780 encoding. This is experimental and needs additional code to 3781 be useful, such as an ASN1 bio and some enhanced streaming 3782 PKCS#7 code. 3783 3784 Extend template encode functionality so that tagging is passed 3785 down to the template encoder. 3786 [Steve Henson] 3787 3788 *) Let 'openssl req' fail if an argument to '-newkey' is not 3789 recognized instead of using RSA as a default. 3790 [Bodo Moeller] 3791 3792 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt. 3793 As these are not official, they are not included in "ALL"; 3794 the "ECCdraft" ciphersuite group alias can be used to select them. 3795 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)] 3796 3797 *) Add ECDH engine support. 3798 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)] 3799 3800 *) Add ECDH in new directory crypto/ecdh/. 3801 [Douglas Stebila (Sun Microsystems Laboratories)] 3802 3803 *) Let BN_rand_range() abort with an error after 100 iterations 3804 without success (which indicates a broken PRNG). 3805 [Bodo Moeller] 3806 3807 *) Change BN_mod_sqrt() so that it verifies that the input value 3808 is really the square of the return value. (Previously, 3809 BN_mod_sqrt would show GIGO behaviour.) 3810 [Bodo Moeller] 3811 3812 *) Add named elliptic curves over binary fields from X9.62, SECG, 3813 and WAP/WTLS; add OIDs that were still missing. 3814 3815 [Sheueling Chang Shantz and Douglas Stebila 3816 (Sun Microsystems Laboratories)] 3817 3818 *) Extend the EC library for elliptic curves over binary fields 3819 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/). 3820 New EC_METHOD: 3821 3822 EC_GF2m_simple_method 3823 3824 New API functions: 3825 3826 EC_GROUP_new_curve_GF2m 3827 EC_GROUP_set_curve_GF2m 3828 EC_GROUP_get_curve_GF2m 3829 EC_POINT_set_affine_coordinates_GF2m 3830 EC_POINT_get_affine_coordinates_GF2m 3831 EC_POINT_set_compressed_coordinates_GF2m 3832 3833 Point compression for binary fields is disabled by default for 3834 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to 3835 enable it). 3836 3837 As binary polynomials are represented as BIGNUMs, various members 3838 of the EC_GROUP and EC_POINT data structures can be shared 3839 between the implementations for prime fields and binary fields; 3840 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m) 3841 are essentially identical to their ..._GFp counterparts. 3842 (For simplicity, the '..._GFp' prefix has been dropped from 3843 various internal method names.) 3844 3845 An internal 'field_div' method (similar to 'field_mul' and 3846 'field_sqr') has been added; this is used only for binary fields. 3847 3848 [Sheueling Chang Shantz and Douglas Stebila 3849 (Sun Microsystems Laboratories)] 3850 3851 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult() 3852 through methods ('mul', 'precompute_mult'). 3853 3854 The generic implementations (now internally called 'ec_wNAF_mul' 3855 and 'ec_wNAF_precomputed_mult') remain the default if these 3856 methods are undefined. 3857 3858 [Sheueling Chang Shantz and Douglas Stebila 3859 (Sun Microsystems Laboratories)] 3860 3861 *) New function EC_GROUP_get_degree, which is defined through 3862 EC_METHOD. For curves over prime fields, this returns the bit 3863 length of the modulus. 3864 3865 [Sheueling Chang Shantz and Douglas Stebila 3866 (Sun Microsystems Laboratories)] 3867 3868 *) New functions EC_GROUP_dup, EC_POINT_dup. 3869 (These simply call ..._new and ..._copy). 3870 3871 [Sheueling Chang Shantz and Douglas Stebila 3872 (Sun Microsystems Laboratories)] 3873 3874 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c. 3875 Polynomials are represented as BIGNUMs (where the sign bit is not 3876 used) in the following functions [macros]: 3877 3878 BN_GF2m_add 3879 BN_GF2m_sub [= BN_GF2m_add] 3880 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr] 3881 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr] 3882 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr] 3883 BN_GF2m_mod_inv 3884 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr] 3885 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr] 3886 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr] 3887 BN_GF2m_cmp [= BN_ucmp] 3888 3889 (Note that only the 'mod' functions are actually for fields GF(2^m). 3890 BN_GF2m_add() is misnomer, but this is for the sake of consistency.) 3891 3892 For some functions, an the irreducible polynomial defining a 3893 field can be given as an 'unsigned int[]' with strictly 3894 decreasing elements giving the indices of those bits that are set; 3895 i.e., p[] represents the polynomial 3896 f(t) = t^p[0] + t^p[1] + ... + t^p[k] 3897 where 3898 p[0] > p[1] > ... > p[k] = 0. 3899 This applies to the following functions: 3900 3901 BN_GF2m_mod_arr 3902 BN_GF2m_mod_mul_arr 3903 BN_GF2m_mod_sqr_arr 3904 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv] 3905 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div] 3906 BN_GF2m_mod_exp_arr 3907 BN_GF2m_mod_sqrt_arr 3908 BN_GF2m_mod_solve_quad_arr 3909 BN_GF2m_poly2arr 3910 BN_GF2m_arr2poly 3911 3912 Conversion can be performed by the following functions: 3913 3914 BN_GF2m_poly2arr 3915 BN_GF2m_arr2poly 3916 3917 bntest.c has additional tests for binary polynomial arithmetic. 3918 3919 Two implementations for BN_GF2m_mod_div() are available. 3920 The default algorithm simply uses BN_GF2m_mod_inv() and 3921 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only 3922 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the 3923 copyright notice in crypto/bn/bn_gf2m.c before enabling it). 3924 3925 [Sheueling Chang Shantz and Douglas Stebila 3926 (Sun Microsystems Laboratories)] 3927 3928 *) Add new error code 'ERR_R_DISABLED' that can be used when some 3929 functionality is disabled at compile-time. 3930 [Douglas Stebila <douglas.stebila@sun.com>] 3931 3932 *) Change default behaviour of 'openssl asn1parse' so that more 3933 information is visible when viewing, e.g., a certificate: 3934 3935 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump' 3936 mode the content of non-printable OCTET STRINGs is output in a 3937 style similar to INTEGERs, but with '[HEX DUMP]' prepended to 3938 avoid the appearance of a printable string. 3939 [Nils Larsch <nla@trustcenter.de>] 3940 3941 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access 3942 functions 3943 EC_GROUP_set_asn1_flag() 3944 EC_GROUP_get_asn1_flag() 3945 EC_GROUP_set_point_conversion_form() 3946 EC_GROUP_get_point_conversion_form() 3947 These control ASN1 encoding details: 3948 - Curves (i.e., groups) are encoded explicitly unless asn1_flag 3949 has been set to OPENSSL_EC_NAMED_CURVE. 3950 - Points are encoded in uncompressed form by default; options for 3951 asn1_for are as for point2oct, namely 3952 POINT_CONVERSION_COMPRESSED 3953 POINT_CONVERSION_UNCOMPRESSED 3954 POINT_CONVERSION_HYBRID 3955 3956 Also add 'seed' and 'seed_len' members to EC_GROUP with access 3957 functions 3958 EC_GROUP_set_seed() 3959 EC_GROUP_get0_seed() 3960 EC_GROUP_get_seed_len() 3961 This is used only for ASN1 purposes (so far). 3962 [Nils Larsch <nla@trustcenter.de>] 3963 3964 *) Add 'field_type' member to EC_METHOD, which holds the NID 3965 of the appropriate field type OID. The new function 3966 EC_METHOD_get_field_type() returns this value. 3967 [Nils Larsch <nla@trustcenter.de>] 3968 3969 *) Add functions 3970 EC_POINT_point2bn() 3971 EC_POINT_bn2point() 3972 EC_POINT_point2hex() 3973 EC_POINT_hex2point() 3974 providing useful interfaces to EC_POINT_point2oct() and 3975 EC_POINT_oct2point(). 3976 [Nils Larsch <nla@trustcenter.de>] 3977 3978 *) Change internals of the EC library so that the functions 3979 EC_GROUP_set_generator() 3980 EC_GROUP_get_generator() 3981 EC_GROUP_get_order() 3982 EC_GROUP_get_cofactor() 3983 are implemented directly in crypto/ec/ec_lib.c and not dispatched 3984 to methods, which would lead to unnecessary code duplication when 3985 adding different types of curves. 3986 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller] 3987 3988 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM 3989 arithmetic, and such that modified wNAFs are generated 3990 (which avoid length expansion in many cases). 3991 [Bodo Moeller] 3992 3993 *) Add a function EC_GROUP_check_discriminant() (defined via 3994 EC_METHOD) that verifies that the curve discriminant is non-zero. 3995 3996 Add a function EC_GROUP_check() that makes some sanity tests 3997 on a EC_GROUP, its generator and order. This includes 3998 EC_GROUP_check_discriminant(). 3999 [Nils Larsch <nla@trustcenter.de>] 4000 4001 *) Add ECDSA in new directory crypto/ecdsa/. 4002 4003 Add applications 'openssl ecparam' and 'openssl ecdsa' 4004 (these are based on 'openssl dsaparam' and 'openssl dsa'). 4005 4006 ECDSA support is also included in various other files across the 4007 library. Most notably, 4008 - 'openssl req' now has a '-newkey ecdsa:file' option; 4009 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA; 4010 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and 4011 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make 4012 them suitable for ECDSA where domain parameters must be 4013 extracted before the specific public key; 4014 - ECDSA engine support has been added. 4015 [Nils Larsch <nla@trustcenter.de>] 4016 4017 *) Include some named elliptic curves, and add OIDs from X9.62, 4018 SECG, and WAP/WTLS. Each curve can be obtained from the new 4019 function 4020 EC_GROUP_new_by_curve_name(), 4021 and the list of available named curves can be obtained with 4022 EC_get_builtin_curves(). 4023 Also add a 'curve_name' member to EC_GROUP objects, which can be 4024 accessed via 4025 EC_GROUP_set_curve_name() 4026 EC_GROUP_get_curve_name() 4027 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller] 4028 4029 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 4030 was actually never needed) and in BN_mul(). The removal in BN_mul() 4031 required a small change in bn_mul_part_recursive() and the addition 4032 of the functions bn_cmp_part_words(), bn_sub_part_words() and 4033 bn_add_part_words(), which do the same thing as bn_cmp_words(), 4034 bn_sub_words() and bn_add_words() except they take arrays with 4035 differing sizes. 4036 [Richard Levitte] 4037 4038 Changes between 0.9.7l and 0.9.7m [23 Feb 2007] 4039 4040 *) Cleanse PEM buffers before freeing them since they may contain 4041 sensitive data. 4042 [Benjamin Bennett <ben@psc.edu>] 4043 4044 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that 4045 a ciphersuite string such as "DEFAULT:RSA" cannot enable 4046 authentication-only ciphersuites. 4047 [Bodo Moeller] 4048 4049 *) Since AES128 and AES256 share a single mask bit in the logic of 4050 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a 4051 kludge to work properly if AES128 is available and AES256 isn't. 4052 [Victor Duchovni] 4053 4054 *) Expand security boundary to match 1.1.1 module. 4055 [Steve Henson] 4056 4057 *) Remove redundant features: hash file source, editing of test vectors 4058 modify fipsld to use external fips_premain.c signature. 4059 [Steve Henson] 4060 4061 *) New perl script mkfipsscr.pl to create shell scripts or batch files to 4062 run algorithm test programs. 4063 [Steve Henson] 4064 4065 *) Make algorithm test programs more tolerant of whitespace. 4066 [Steve Henson] 4067 4068 *) Have SSL/TLS server implementation tolerate "mismatched" record 4069 protocol version while receiving ClientHello even if the 4070 ClientHello is fragmented. (The server can't insist on the 4071 particular protocol version it has chosen before the ServerHello 4072 message has informed the client about his choice.) 4073 [Bodo Moeller] 4074 4075 *) Load error codes if they are not already present instead of using a 4076 static variable. This allows them to be cleanly unloaded and reloaded. 4077 [Steve Henson] 4078 4079 Changes between 0.9.7k and 0.9.7l [28 Sep 2006] 4080 4081 *) Introduce limits to prevent malicious keys being able to 4082 cause a denial of service. (CVE-2006-2940) 4083 [Steve Henson, Bodo Moeller] 4084 4085 *) Fix ASN.1 parsing of certain invalid structures that can result 4086 in a denial of service. (CVE-2006-2937) [Steve Henson] 4087 4088 *) Fix buffer overflow in SSL_get_shared_ciphers() function. 4089 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team] 4090 4091 *) Fix SSL client code which could crash if connecting to a 4092 malicious SSLv2 server. (CVE-2006-4343) 4093 [Tavis Ormandy and Will Drewry, Google Security Team] 4094 4095 *) Change ciphersuite string processing so that an explicit 4096 ciphersuite selects this one ciphersuite (so that "AES256-SHA" 4097 will no longer include "AES128-SHA"), and any other similar 4098 ciphersuite (same bitmap) from *other* protocol versions (so that 4099 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the 4100 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining 4101 changes from 0.9.8b and 0.9.8d. 4102 [Bodo Moeller] 4103 4104 Changes between 0.9.7j and 0.9.7k [05 Sep 2006] 4105 4106 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher 4107 (CVE-2006-4339) [Ben Laurie and Google Security Team] 4108 4109 *) Change the Unix randomness entropy gathering to use poll() when 4110 possible instead of select(), since the latter has some 4111 undesirable limitations. 4112 [Darryl Miles via Richard Levitte and Bodo Moeller] 4113 4114 *) Disable rogue ciphersuites: 4115 4116 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5") 4117 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5") 4118 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5") 4119 4120 The latter two were purportedly from 4121 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really 4122 appear there. 4123 4124 Also deactive the remaining ciphersuites from 4125 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as 4126 unofficial, and the ID has long expired. 4127 [Bodo Moeller] 4128 4129 *) Fix RSA blinding Heisenbug (problems sometimes occured on 4130 dual-core machines) and other potential thread-safety issues. 4131 [Bodo Moeller] 4132 4133 Changes between 0.9.7i and 0.9.7j [04 May 2006] 4134 4135 *) Adapt fipsld and the build system to link against the validated FIPS 4136 module in FIPS mode. 4137 [Steve Henson] 4138 4139 *) Fixes for VC++ 2005 build under Windows. 4140 [Steve Henson] 4141 4142 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make 4143 from a Windows bash shell such as MSYS. It is autodetected from the 4144 "config" script when run from a VC++ environment. Modify standard VC++ 4145 build to use fipscanister.o from the GNU make build. 4146 [Steve Henson] 4147 4148 Changes between 0.9.7h and 0.9.7i [14 Oct 2005] 4149 4150 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS. 4151 The value now differs depending on if you build for FIPS or not. 4152 BEWARE! A program linked with a shared FIPSed libcrypto can't be 4153 safely run with a non-FIPSed libcrypto, as it may crash because of 4154 the difference induced by this change. 4155 [Andy Polyakov] 4156 4157 Changes between 0.9.7g and 0.9.7h [11 Oct 2005] 4158 4159 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING 4160 (part of SSL_OP_ALL). This option used to disable the 4161 countermeasure against man-in-the-middle protocol-version 4162 rollback in the SSL 2.0 server implementation, which is a bad 4163 idea. (CVE-2005-2969) 4164 4165 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center 4166 for Information Security, National Institute of Advanced Industrial 4167 Science and Technology [AIST], Japan)] 4168 4169 *) Minimal support for X9.31 signatures and PSS padding modes. This is 4170 mainly for FIPS compliance and not fully integrated at this stage. 4171 [Steve Henson] 4172 4173 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform 4174 the exponentiation using a fixed-length exponent. (Otherwise, 4175 the information leaked through timing could expose the secret key 4176 after many signatures; cf. Bleichenbacher's attack on DSA with 4177 biased k.) 4178 [Bodo Moeller] 4179 4180 *) Make a new fixed-window mod_exp implementation the default for 4181 RSA, DSA, and DH private-key operations so that the sequence of 4182 squares and multiplies and the memory access pattern are 4183 independent of the particular secret key. This will mitigate 4184 cache-timing and potential related attacks. 4185 4186 BN_mod_exp_mont_consttime() is the new exponentiation implementation, 4187 and this is automatically used by BN_mod_exp_mont() if the new flag 4188 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH 4189 will use this BN flag for private exponents unless the flag 4190 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or 4191 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set. 4192 4193 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller] 4194 4195 *) Change the client implementation for SSLv23_method() and 4196 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0 4197 Client Hello message format if the SSL_OP_NO_SSLv2 option is set. 4198 (Previously, the SSL 2.0 backwards compatible Client Hello 4199 message format would be used even with SSL_OP_NO_SSLv2.) 4200 [Bodo Moeller] 4201 4202 *) Add support for smime-type MIME parameter in S/MIME messages which some 4203 clients need. 4204 [Steve Henson] 4205 4206 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in 4207 a threadsafe manner. Modify rsa code to use new function and add calls 4208 to dsa and dh code (which had race conditions before). 4209 [Steve Henson] 4210 4211 *) Include the fixed error library code in the C error file definitions 4212 instead of fixing them up at runtime. This keeps the error code 4213 structures constant. 4214 [Steve Henson] 4215 4216 Changes between 0.9.7f and 0.9.7g [11 Apr 2005] 4217 4218 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after 4219 OpenSSL 0.9.8.] 4220 4221 *) Fixes for newer kerberos headers. NB: the casts are needed because 4222 the 'length' field is signed on one version and unsigned on another 4223 with no (?) obvious way to tell the difference, without these VC++ 4224 complains. Also the "definition" of FAR (blank) is no longer included 4225 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up 4226 some needed definitions. 4227 [Steve Henson] 4228 4229 *) Undo Cygwin change. 4230 [Ulf M�ller] 4231 4232 *) Added support for proxy certificates according to RFC 3820. 4233 Because they may be a security thread to unaware applications, 4234 they must be explicitely allowed in run-time. See 4235 docs/HOWTO/proxy_certificates.txt for further information. 4236 [Richard Levitte] 4237 4238 Changes between 0.9.7e and 0.9.7f [22 Mar 2005] 4239 4240 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating 4241 server and client random values. Previously 4242 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in 4243 less random data when sizeof(time_t) > 4 (some 64 bit platforms). 4244 4245 This change has negligible security impact because: 4246 4247 1. Server and client random values still have 24 bytes of pseudo random 4248 data. 4249 4250 2. Server and client random values are sent in the clear in the initial 4251 handshake. 4252 4253 3. The master secret is derived using the premaster secret (48 bytes in 4254 size for static RSA ciphersuites) as well as client server and random 4255 values. 4256 4257 The OpenSSL team would like to thank the UK NISCC for bringing this issue 4258 to our attention. 4259 4260 [Stephen Henson, reported by UK NISCC] 4261 4262 *) Use Windows randomness collection on Cygwin. 4263 [Ulf M�ller] 4264 4265 *) Fix hang in EGD/PRNGD query when communication socket is closed 4266 prematurely by EGD/PRNGD. 4267 [Darren Tucker <dtucker@zip.com.au> via Lutz J�nicke, resolves #1014] 4268 4269 *) Prompt for pass phrases when appropriate for PKCS12 input format. 4270 [Steve Henson] 4271 4272 *) Back-port of selected performance improvements from development 4273 branch, as well as improved support for PowerPC platforms. 4274 [Andy Polyakov] 4275 4276 *) Add lots of checks for memory allocation failure, error codes to indicate 4277 failure and freeing up memory if a failure occurs. 4278 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson] 4279 4280 *) Add new -passin argument to dgst. 4281 [Steve Henson] 4282 4283 *) Perform some character comparisons of different types in X509_NAME_cmp: 4284 this is needed for some certificates that reencode DNs into UTF8Strings 4285 (in violation of RFC3280) and can't or wont issue name rollover 4286 certificates. 4287 [Steve Henson] 4288 4289 *) Make an explicit check during certificate validation to see that 4290 the CA setting in each certificate on the chain is correct. As a 4291 side effect always do the following basic checks on extensions, 4292 not just when there's an associated purpose to the check: 4293 4294 - if there is an unhandled critical extension (unless the user 4295 has chosen to ignore this fault) 4296 - if the path length has been exceeded (if one is set at all) 4297 - that certain extensions fit the associated purpose (if one has 4298 been given) 4299 [Richard Levitte] 4300 4301 Changes between 0.9.7d and 0.9.7e [25 Oct 2004] 4302 4303 *) Avoid a race condition when CRLs are checked in a multi threaded 4304 environment. This would happen due to the reordering of the revoked 4305 entries during signature checking and serial number lookup. Now the 4306 encoding is cached and the serial number sort performed under a lock. 4307 Add new STACK function sk_is_sorted(). 4308 [Steve Henson] 4309 4310 *) Add Delta CRL to the extension code. 4311 [Steve Henson] 4312 4313 *) Various fixes to s3_pkt.c so alerts are sent properly. 4314 [David Holmes <d.holmes@f5.com>] 4315 4316 *) Reduce the chances of duplicate issuer name and serial numbers (in 4317 violation of RFC3280) using the OpenSSL certificate creation utilities. 4318 This is done by creating a random 64 bit value for the initial serial 4319 number when a serial number file is created or when a self signed 4320 certificate is created using 'openssl req -x509'. The initial serial 4321 number file is created using 'openssl x509 -next_serial' in CA.pl 4322 rather than being initialized to 1. 4323 [Steve Henson] 4324 4325 Changes between 0.9.7c and 0.9.7d [17 Mar 2004] 4326 4327 *) Fix null-pointer assignment in do_change_cipher_spec() revealed 4328 by using the Codenomicon TLS Test Tool (CVE-2004-0079) 4329 [Joe Orton, Steve Henson] 4330 4331 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites 4332 (CVE-2004-0112) 4333 [Joe Orton, Steve Henson] 4334 4335 *) Make it possible to have multiple active certificates with the same 4336 subject in the CA index file. This is done only if the keyword 4337 'unique_subject' is set to 'no' in the main CA section (default 4338 if 'CA_default') of the configuration file. The value is saved 4339 with the database itself in a separate index attribute file, 4340 named like the index file with '.attr' appended to the name. 4341 [Richard Levitte] 4342 4343 *) X509 verify fixes. Disable broken certificate workarounds when 4344 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if 4345 keyUsage extension present. Don't accept CRLs with unhandled critical 4346 extensions: since verify currently doesn't process CRL extensions this 4347 rejects a CRL with *any* critical extensions. Add new verify error codes 4348 for these cases. 4349 [Steve Henson] 4350 4351 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue. 4352 A clarification of RFC2560 will require the use of OCTET STRINGs and 4353 some implementations cannot handle the current raw format. Since OpenSSL 4354 copies and compares OCSP nonces as opaque blobs without any attempt at 4355 parsing them this should not create any compatibility issues. 4356 [Steve Henson] 4357 4358 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when 4359 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without 4360 this HMAC (and other) operations are several times slower than OpenSSL 4361 < 0.9.7. 4362 [Steve Henson] 4363 4364 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex(). 4365 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>] 4366 4367 *) Use the correct content when signing type "other". 4368 [Steve Henson] 4369 4370 Changes between 0.9.7b and 0.9.7c [30 Sep 2003] 4371 4372 *) Fix various bugs revealed by running the NISCC test suite: 4373 4374 Stop out of bounds reads in the ASN1 code when presented with 4375 invalid tags (CVE-2003-0543 and CVE-2003-0544). 4376 4377 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545). 4378 4379 If verify callback ignores invalid public key errors don't try to check 4380 certificate signature with the NULL public key. 4381 4382 [Steve Henson] 4383 4384 *) New -ignore_err option in ocsp application to stop the server 4385 exiting on the first error in a request. 4386 [Steve Henson] 4387 4388 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 4389 if the server requested one: as stated in TLS 1.0 and SSL 3.0 4390 specifications. 4391 [Steve Henson] 4392 4393 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 4394 extra data after the compression methods not only for TLS 1.0 4395 but also for SSL 3.0 (as required by the specification). 4396 [Bodo Moeller; problem pointed out by Matthias Loepfe] 4397 4398 *) Change X509_certificate_type() to mark the key as exported/exportable 4399 when it's 512 *bits* long, not 512 bytes. 4400 [Richard Levitte] 4401 4402 *) Change AES_cbc_encrypt() so it outputs exact multiple of 4403 blocks during encryption. 4404 [Richard Levitte] 4405 4406 *) Various fixes to base64 BIO and non blocking I/O. On write 4407 flushes were not handled properly if the BIO retried. On read 4408 data was not being buffered properly and had various logic bugs. 4409 This also affects blocking I/O when the data being decoded is a 4410 certain size. 4411 [Steve Henson] 4412 4413 *) Various S/MIME bugfixes and compatibility changes: 4414 output correct application/pkcs7 MIME type if 4415 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures. 4416 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening 4417 of files as .eml work). Correctly handle very long lines in MIME 4418 parser. 4419 [Steve Henson] 4420 4421 Changes between 0.9.7a and 0.9.7b [10 Apr 2003] 4422 4423 *) Countermeasure against the Klima-Pokorny-Rosa extension of 4424 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 4425 a protocol version number mismatch like a decryption error 4426 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 4427 [Bodo Moeller] 4428 4429 *) Turn on RSA blinding by default in the default implementation 4430 to avoid a timing attack. Applications that don't want it can call 4431 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 4432 They would be ill-advised to do so in most cases. 4433 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller] 4434 4435 *) Change RSA blinding code so that it works when the PRNG is not 4436 seeded (in this case, the secret RSA exponent is abused as 4437 an unpredictable seed -- if it is not unpredictable, there 4438 is no point in blinding anyway). Make RSA blinding thread-safe 4439 by remembering the creator's thread ID in rsa->blinding and 4440 having all other threads use local one-time blinding factors 4441 (this requires more computation than sharing rsa->blinding, but 4442 avoids excessive locking; and if an RSA object is not shared 4443 between threads, blinding will still be very fast). 4444 [Bodo Moeller] 4445 4446 *) Fixed a typo bug that would cause ENGINE_set_default() to set an 4447 ENGINE as defaults for all supported algorithms irrespective of 4448 the 'flags' parameter. 'flags' is now honoured, so applications 4449 should make sure they are passing it correctly. 4450 [Geoff Thorpe] 4451 4452 *) Target "mingw" now allows native Windows code to be generated in 4453 the Cygwin environment as well as with the MinGW compiler. 4454 [Ulf Moeller] 4455 4456 Changes between 0.9.7 and 0.9.7a [19 Feb 2003] 4457 4458 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 4459 via timing by performing a MAC computation even if incorrrect 4460 block cipher padding has been found. This is a countermeasure 4461 against active attacks where the attacker has to distinguish 4462 between bad padding and a MAC verification error. (CVE-2003-0078) 4463 4464 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 4465 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 4466 Martin Vuagnoux (EPFL, Ilion)] 4467 4468 *) Make the no-err option work as intended. The intention with no-err 4469 is not to have the whole error stack handling routines removed from 4470 libcrypto, it's only intended to remove all the function name and 4471 reason texts, thereby removing some of the footprint that may not 4472 be interesting if those errors aren't displayed anyway. 4473 4474 NOTE: it's still possible for any application or module to have it's 4475 own set of error texts inserted. The routines are there, just not 4476 used by default when no-err is given. 4477 [Richard Levitte] 4478 4479 *) Add support for FreeBSD on IA64. 4480 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454] 4481 4482 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT 4483 Kerberos function mit_des_cbc_cksum(). Before this change, 4484 the value returned by DES_cbc_cksum() was like the one from 4485 mit_des_cbc_cksum(), except the bytes were swapped. 4486 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte] 4487 4488 *) Allow an application to disable the automatic SSL chain building. 4489 Before this a rather primitive chain build was always performed in 4490 ssl3_output_cert_chain(): an application had no way to send the 4491 correct chain if the automatic operation produced an incorrect result. 4492 4493 Now the chain builder is disabled if either: 4494 4495 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert(). 4496 4497 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set. 4498 4499 The reasoning behind this is that an application would not want the 4500 auto chain building to take place if extra chain certificates are 4501 present and it might also want a means of sending no additional 4502 certificates (for example the chain has two certificates and the 4503 root is omitted). 4504 [Steve Henson] 4505 4506 *) Add the possibility to build without the ENGINE framework. 4507 [Steven Reddie <smr@essemer.com.au> via Richard Levitte] 4508 4509 *) Under Win32 gmtime() can return NULL: check return value in 4510 OPENSSL_gmtime(). Add error code for case where gmtime() fails. 4511 [Steve Henson] 4512 4513 *) DSA routines: under certain error conditions uninitialized BN objects 4514 could be freed. Solution: make sure initialization is performed early 4515 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>, 4516 Nils Larsch <nla@trustcenter.de> via PR#459) 4517 [Lutz Jaenicke] 4518 4519 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly 4520 checked on reconnect on the client side, therefore session resumption 4521 could still fail with a "ssl session id is different" error. This 4522 behaviour is masked when SSL_OP_ALL is used due to 4523 SSL_OP_MICROSOFT_SESS_ID_BUG being set. 4524 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 4525 followup to PR #377. 4526 [Lutz Jaenicke] 4527 4528 *) IA-32 assembler support enhancements: unified ELF targets, support 4529 for SCO/Caldera platforms, fix for Cygwin shared build. 4530 [Andy Polyakov] 4531 4532 *) Add support for FreeBSD on sparc64. As a consequence, support for 4533 FreeBSD on non-x86 processors is separate from x86 processors on 4534 the config script, much like the NetBSD support. 4535 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>] 4536 4537 Changes between 0.9.6h and 0.9.7 [31 Dec 2002] 4538 4539 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after 4540 OpenSSL 0.9.7.] 4541 4542 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED 4543 code (06) was taken as the first octet of the session ID and the last 4544 octet was ignored consequently. As a result SSLv2 client side session 4545 caching could not have worked due to the session ID mismatch between 4546 client and server. 4547 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as 4548 PR #377. 4549 [Lutz Jaenicke] 4550 4551 *) Change the declaration of needed Kerberos libraries to use EX_LIBS 4552 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is 4553 removed entirely. 4554 [Richard Levitte] 4555 4556 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it 4557 seems that in spite of existing for more than a year, many application 4558 author have done nothing to provide the necessary callbacks, which 4559 means that this particular engine will not work properly anywhere. 4560 This is a very unfortunate situation which forces us, in the name 4561 of usability, to give the hw_ncipher.c a static lock, which is part 4562 of libcrypto. 4563 NOTE: This is for the 0.9.7 series ONLY. This hack will never 4564 appear in 0.9.8 or later. We EXPECT application authors to have 4565 dealt properly with this when 0.9.8 is released (unless we actually 4566 make such changes in the libcrypto locking code that changes will 4567 have to be made anyway). 4568 [Richard Levitte] 4569 4570 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content 4571 octets have been read, EOF or an error occurs. Without this change 4572 some truncated ASN1 structures will not produce an error. 4573 [Steve Henson] 4574 4575 *) Disable Heimdal support, since it hasn't been fully implemented. 4576 Still give the possibility to force the use of Heimdal, but with 4577 warnings and a request that patches get sent to openssl-dev. 4578 [Richard Levitte] 4579 4580 *) Add the VC-CE target, introduce the WINCE sysname, and add 4581 INSTALL.WCE and appropriate conditionals to make it build. 4582 [Steven Reddie <smr@essemer.com.au> via Richard Levitte] 4583 4584 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and 4585 cygssl-x.y.z.dll, where x, y and z are the major, minor and 4586 edit numbers of the version. 4587 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte] 4588 4589 *) Introduce safe string copy and catenation functions 4590 (BUF_strlcpy() and BUF_strlcat()). 4591 [Ben Laurie (CHATS) and Richard Levitte] 4592 4593 *) Avoid using fixed-size buffers for one-line DNs. 4594 [Ben Laurie (CHATS)] 4595 4596 *) Add BUF_MEM_grow_clean() to avoid information leakage when 4597 resizing buffers containing secrets, and use where appropriate. 4598 [Ben Laurie (CHATS)] 4599 4600 *) Avoid using fixed size buffers for configuration file location. 4601 [Ben Laurie (CHATS)] 4602 4603 *) Avoid filename truncation for various CA files. 4604 [Ben Laurie (CHATS)] 4605 4606 *) Use sizeof in preference to magic numbers. 4607 [Ben Laurie (CHATS)] 4608 4609 *) Avoid filename truncation in cert requests. 4610 [Ben Laurie (CHATS)] 4611 4612 *) Add assertions to check for (supposedly impossible) buffer 4613 overflows. 4614 [Ben Laurie (CHATS)] 4615 4616 *) Don't cache truncated DNS entries in the local cache (this could 4617 potentially lead to a spoofing attack). 4618 [Ben Laurie (CHATS)] 4619 4620 *) Fix various buffers to be large enough for hex/decimal 4621 representations in a platform independent manner. 4622 [Ben Laurie (CHATS)] 4623 4624 *) Add CRYPTO_realloc_clean() to avoid information leakage when 4625 resizing buffers containing secrets, and use where appropriate. 4626 [Ben Laurie (CHATS)] 4627 4628 *) Add BIO_indent() to avoid much slightly worrying code to do 4629 indents. 4630 [Ben Laurie (CHATS)] 4631 4632 *) Convert sprintf()/BIO_puts() to BIO_printf(). 4633 [Ben Laurie (CHATS)] 4634 4635 *) buffer_gets() could terminate with the buffer only half 4636 full. Fixed. 4637 [Ben Laurie (CHATS)] 4638 4639 *) Add assertions to prevent user-supplied crypto functions from 4640 overflowing internal buffers by having large block sizes, etc. 4641 [Ben Laurie (CHATS)] 4642 4643 *) New OPENSSL_assert() macro (similar to assert(), but enabled 4644 unconditionally). 4645 [Ben Laurie (CHATS)] 4646 4647 *) Eliminate unused copy of key in RC4. 4648 [Ben Laurie (CHATS)] 4649 4650 *) Eliminate unused and incorrectly sized buffers for IV in pem.h. 4651 [Ben Laurie (CHATS)] 4652 4653 *) Fix off-by-one error in EGD path. 4654 [Ben Laurie (CHATS)] 4655 4656 *) If RANDFILE path is too long, ignore instead of truncating. 4657 [Ben Laurie (CHATS)] 4658 4659 *) Eliminate unused and incorrectly sized X.509 structure 4660 CBCParameter. 4661 [Ben Laurie (CHATS)] 4662 4663 *) Eliminate unused and dangerous function knumber(). 4664 [Ben Laurie (CHATS)] 4665 4666 *) Eliminate unused and dangerous structure, KSSL_ERR. 4667 [Ben Laurie (CHATS)] 4668 4669 *) Protect against overlong session ID context length in an encoded 4670 session object. Since these are local, this does not appear to be 4671 exploitable. 4672 [Ben Laurie (CHATS)] 4673 4674 *) Change from security patch (see 0.9.6e below) that did not affect 4675 the 0.9.6 release series: 4676 4677 Remote buffer overflow in SSL3 protocol - an attacker could 4678 supply an oversized master key in Kerberos-enabled versions. 4679 (CVE-2002-0657) 4680 [Ben Laurie (CHATS)] 4681 4682 *) Change the SSL kerb5 codes to match RFC 2712. 4683 [Richard Levitte] 4684 4685 *) Make -nameopt work fully for req and add -reqopt switch. 4686 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson] 4687 4688 *) The "block size" for block ciphers in CFB and OFB mode should be 1. 4689 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>] 4690 4691 *) Make sure tests can be performed even if the corresponding algorithms 4692 have been removed entirely. This was also the last step to make 4693 OpenSSL compilable with DJGPP under all reasonable conditions. 4694 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>] 4695 4696 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT 4697 to allow version independent disabling of normally unselected ciphers, 4698 which may be activated as a side-effect of selecting a single cipher. 4699 4700 (E.g., cipher list string "RSA" enables ciphersuites that are left 4701 out of "ALL" because they do not provide symmetric encryption. 4702 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.) 4703 [Lutz Jaenicke, Bodo Moeller] 4704 4705 *) Add appropriate support for separate platform-dependent build 4706 directories. The recommended way to make a platform-dependent 4707 build directory is the following (tested on Linux), maybe with 4708 some local tweaks: 4709 4710 # Place yourself outside of the OpenSSL source tree. In 4711 # this example, the environment variable OPENSSL_SOURCE 4712 # is assumed to contain the absolute OpenSSL source directory. 4713 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`" 4714 cd objtree/"`uname -s`-`uname -r`-`uname -m`" 4715 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do 4716 mkdir -p `dirname $F` 4717 ln -s $OPENSSL_SOURCE/$F $F 4718 done 4719 4720 To be absolutely sure not to disturb the source tree, a "make clean" 4721 is a good thing. If it isn't successfull, don't worry about it, 4722 it probably means the source directory is very clean. 4723 [Richard Levitte] 4724 4725 *) Make sure any ENGINE control commands make local copies of string 4726 pointers passed to them whenever necessary. Otherwise it is possible 4727 the caller may have overwritten (or deallocated) the original string 4728 data when a later ENGINE operation tries to use the stored values. 4729 [G�tz Babin-Ebell <babinebell@trustcenter.de>] 4730 4731 *) Improve diagnostics in file reading and command-line digests. 4732 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>] 4733 4734 *) Add AES modes CFB and OFB to the object database. Correct an 4735 error in AES-CFB decryption. 4736 [Richard Levitte] 4737 4738 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this 4739 allows existing EVP_CIPHER_CTX structures to be reused after 4740 calling EVP_*Final(). This behaviour is used by encryption 4741 BIOs and some applications. This has the side effect that 4742 applications must explicitly clean up cipher contexts with 4743 EVP_CIPHER_CTX_cleanup() or they will leak memory. 4744 [Steve Henson] 4745 4746 *) Check the values of dna and dnb in bn_mul_recursive before calling 4747 bn_mul_comba (a non zero value means the a or b arrays do not contain 4748 n2 elements) and fallback to bn_mul_normal if either is not zero. 4749 [Steve Henson] 4750 4751 *) Fix escaping of non-ASCII characters when using the -subj option 4752 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>) 4753 [Lutz Jaenicke] 4754 4755 *) Make object definitions compliant to LDAP (RFC2256): SN is the short 4756 form for "surname", serialNumber has no short form. 4757 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798; 4758 therefore remove "mail" short name for "internet 7". 4759 The OID for unique identifiers in X509 certificates is 4760 x500UniqueIdentifier, not uniqueIdentifier. 4761 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>) 4762 [Lutz Jaenicke] 4763 4764 *) Add an "init" command to the ENGINE config module and auto initialize 4765 ENGINEs. Without any "init" command the ENGINE will be initialized 4766 after all ctrl commands have been executed on it. If init=1 the 4767 ENGINE is initailized at that point (ctrls before that point are run 4768 on the uninitialized ENGINE and after on the initialized one). If 4769 init=0 then the ENGINE will not be iniatialized at all. 4770 [Steve Henson] 4771 4772 *) Fix the 'app_verify_callback' interface so that the user-defined 4773 argument is actually passed to the callback: In the 4774 SSL_CTX_set_cert_verify_callback() prototype, the callback 4775 declaration has been changed from 4776 int (*cb)() 4777 into 4778 int (*cb)(X509_STORE_CTX *,void *); 4779 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call 4780 i=s->ctx->app_verify_callback(&ctx) 4781 has been changed into 4782 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg). 4783 4784 To update applications using SSL_CTX_set_cert_verify_callback(), 4785 a dummy argument can be added to their callback functions. 4786 [D. K. Smetters <smetters@parc.xerox.com>] 4787 4788 *) Added the '4758cca' ENGINE to support IBM 4758 cards. 4789 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe] 4790 4791 *) Add and OPENSSL_LOAD_CONF define which will cause 4792 OpenSSL_add_all_algorithms() to load the openssl.cnf config file. 4793 This allows older applications to transparently support certain 4794 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading. 4795 Two new functions OPENSSL_add_all_algorithms_noconf() which will never 4796 load the config file and OPENSSL_add_all_algorithms_conf() which will 4797 always load it have also been added. 4798 [Steve Henson] 4799 4800 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES. 4801 Adjust NIDs and EVP layer. 4802 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte] 4803 4804 *) Config modules support in openssl utility. 4805 4806 Most commands now load modules from the config file, 4807 though in a few (such as version) this isn't done 4808 because it couldn't be used for anything. 4809 4810 In the case of ca and req the config file used is 4811 the same as the utility itself: that is the -config 4812 command line option can be used to specify an 4813 alternative file. 4814 [Steve Henson] 4815 4816 *) Move default behaviour from OPENSSL_config(). If appname is NULL 4817 use "openssl_conf" if filename is NULL use default openssl config file. 4818 [Steve Henson] 4819 4820 *) Add an argument to OPENSSL_config() to allow the use of an alternative 4821 config section name. Add a new flag to tolerate a missing config file 4822 and move code to CONF_modules_load_file(). 4823 [Steve Henson] 4824 4825 *) Support for crypto accelerator cards from Accelerated Encryption 4826 Processing, www.aep.ie. (Use engine 'aep') 4827 The support was copied from 0.9.6c [engine] and adapted/corrected 4828 to work with the new engine framework. 4829 [AEP Inc. and Richard Levitte] 4830 4831 *) Support for SureWare crypto accelerator cards from Baltimore 4832 Technologies. (Use engine 'sureware') 4833 The support was copied from 0.9.6c [engine] and adapted 4834 to work with the new engine framework. 4835 [Richard Levitte] 4836 4837 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually 4838 make the newer ENGINE framework commands for the CHIL engine work. 4839 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte] 4840 4841 *) Make it possible to produce shared libraries on ReliantUNIX. 4842 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte] 4843 4844 *) Add the configuration target debug-linux-ppro. 4845 Make 'openssl rsa' use the general key loading routines 4846 implemented in apps.c, and make those routines able to 4847 handle the key format FORMAT_NETSCAPE and the variant 4848 FORMAT_IISSGC. 4849 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] 4850 4851 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 4852 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] 4853 4854 *) Add -keyform to rsautl, and document -engine. 4855 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>] 4856 4857 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new 4858 BIO_R_NO_SUCH_FILE error code rather than the generic 4859 ERR_R_SYS_LIB error code if fopen() fails with ENOENT. 4860 [Ben Laurie] 4861 4862 *) Add new functions 4863 ERR_peek_last_error 4864 ERR_peek_last_error_line 4865 ERR_peek_last_error_line_data. 4866 These are similar to 4867 ERR_peek_error 4868 ERR_peek_error_line 4869 ERR_peek_error_line_data, 4870 but report on the latest error recorded rather than the first one 4871 still in the error queue. 4872 [Ben Laurie, Bodo Moeller] 4873 4874 *) default_algorithms option in ENGINE config module. This allows things 4875 like: 4876 default_algorithms = ALL 4877 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS 4878 [Steve Henson] 4879 4880 *) Prelminary ENGINE config module. 4881 [Steve Henson] 4882 4883 *) New experimental application configuration code. 4884 [Steve Henson] 4885 4886 *) Change the AES code to follow the same name structure as all other 4887 symmetric ciphers, and behave the same way. Move everything to 4888 the directory crypto/aes, thereby obsoleting crypto/rijndael. 4889 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte] 4890 4891 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c. 4892 [Ben Laurie and Theo de Raadt] 4893 4894 *) Add option to output public keys in req command. 4895 [Massimiliano Pala madwolf@openca.org] 4896 4897 *) Use wNAFs in EC_POINTs_mul() for improved efficiency 4898 (up to about 10% better than before for P-192 and P-224). 4899 [Bodo Moeller] 4900 4901 *) New functions/macros 4902 4903 SSL_CTX_set_msg_callback(ctx, cb) 4904 SSL_CTX_set_msg_callback_arg(ctx, arg) 4905 SSL_set_msg_callback(ssl, cb) 4906 SSL_set_msg_callback_arg(ssl, arg) 4907 4908 to request calling a callback function 4909 4910 void cb(int write_p, int version, int content_type, 4911 const void *buf, size_t len, SSL *ssl, void *arg) 4912 4913 whenever a protocol message has been completely received 4914 (write_p == 0) or sent (write_p == 1). Here 'version' is the 4915 protocol version according to which the SSL library interprets 4916 the current protocol message (SSL2_VERSION, SSL3_VERSION, or 4917 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or 4918 the content type as defined in the SSL 3.0/TLS 1.0 protocol 4919 specification (change_cipher_spec(20), alert(21), handshake(22)). 4920 'buf' and 'len' point to the actual message, 'ssl' to the 4921 SSL object, and 'arg' is the application-defined value set by 4922 SSL[_CTX]_set_msg_callback_arg(). 4923 4924 'openssl s_client' and 'openssl s_server' have new '-msg' options 4925 to enable a callback that displays all protocol messages. 4926 [Bodo Moeller] 4927 4928 *) Change the shared library support so shared libraries are built as 4929 soon as the corresponding static library is finished, and thereby get 4930 openssl and the test programs linked against the shared library. 4931 This still only happens when the keyword "shard" has been given to 4932 the configuration scripts. 4933 4934 NOTE: shared library support is still an experimental thing, and 4935 backward binary compatibility is still not guaranteed. 4936 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte] 4937 4938 *) Add support for Subject Information Access extension. 4939 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>] 4940 4941 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero 4942 additional bytes when new memory had to be allocated, not just 4943 when reusing an existing buffer. 4944 [Bodo Moeller] 4945 4946 *) New command line and configuration option 'utf8' for the req command. 4947 This allows field values to be specified as UTF8 strings. 4948 [Steve Henson] 4949 4950 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel 4951 runs for the former and machine-readable output for the latter. 4952 [Ben Laurie] 4953 4954 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion 4955 of the e-mail address in the DN (i.e., it will go into a certificate 4956 extension only). The new configuration file option 'email_in_dn = no' 4957 has the same effect. 4958 [Massimiliano Pala madwolf@openca.org] 4959 4960 *) Change all functions with names starting with des_ to be starting 4961 with DES_ instead. Add wrappers that are compatible with libdes, 4962 but are named _ossl_old_des_*. Finally, add macros that map the 4963 des_* symbols to the corresponding _ossl_old_des_* if libdes 4964 compatibility is desired. If OpenSSL 0.9.6c compatibility is 4965 desired, the des_* symbols will be mapped to DES_*, with one 4966 exception. 4967 4968 Since we provide two compatibility mappings, the user needs to 4969 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes 4970 compatibility is desired. The default (i.e., when that macro 4971 isn't defined) is OpenSSL 0.9.6c compatibility. 4972 4973 There are also macros that enable and disable the support of old 4974 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT 4975 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those 4976 are defined, the default will apply: to support the old des routines. 4977 4978 In either case, one must include openssl/des.h to get the correct 4979 definitions. Do not try to just include openssl/des_old.h, that 4980 won't work. 4981 4982 NOTE: This is a major break of an old API into a new one. Software 4983 authors are encouraged to switch to the DES_ style functions. Some 4984 time in the future, des_old.h and the libdes compatibility functions 4985 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the 4986 default), and then completely removed. 4987 [Richard Levitte] 4988 4989 *) Test for certificates which contain unsupported critical extensions. 4990 If such a certificate is found during a verify operation it is 4991 rejected by default: this behaviour can be overridden by either 4992 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or 4993 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function 4994 X509_supported_extension() has also been added which returns 1 if a 4995 particular extension is supported. 4996 [Steve Henson] 4997 4998 *) Modify the behaviour of EVP cipher functions in similar way to digests 4999 to retain compatibility with existing code. 5000 [Steve Henson] 5001 5002 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain 5003 compatibility with existing code. In particular the 'ctx' parameter does 5004 not have to be to be initialized before the call to EVP_DigestInit() and 5005 it is tidied up after a call to EVP_DigestFinal(). New function 5006 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function 5007 EVP_MD_CTX_copy() changed to not require the destination to be 5008 initialized valid and new function EVP_MD_CTX_copy_ex() added which 5009 requires the destination to be valid. 5010 5011 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(), 5012 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex(). 5013 [Steve Henson] 5014 5015 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it 5016 so that complete 'Handshake' protocol structures are kept in memory 5017 instead of overwriting 'msg_type' and 'length' with 'body' data. 5018 [Bodo Moeller] 5019 5020 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32. 5021 [Massimo Santin via Richard Levitte] 5022 5023 *) Major restructuring to the underlying ENGINE code. This includes 5024 reduction of linker bloat, separation of pure "ENGINE" manipulation 5025 (initialisation, etc) from functionality dealing with implementations 5026 of specific crypto iterfaces. This change also introduces integrated 5027 support for symmetric ciphers and digest implementations - so ENGINEs 5028 can now accelerate these by providing EVP_CIPHER and EVP_MD 5029 implementations of their own. This is detailed in crypto/engine/README 5030 as it couldn't be adequately described here. However, there are a few 5031 API changes worth noting - some RSA, DSA, DH, and RAND functions that 5032 were changed in the original introduction of ENGINE code have now 5033 reverted back - the hooking from this code to ENGINE is now a good 5034 deal more passive and at run-time, operations deal directly with 5035 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than 5036 dereferencing through an ENGINE pointer any more. Also, the ENGINE 5037 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed - 5038 they were not being used by the framework as there is no concept of a 5039 BIGNUM_METHOD and they could not be generalised to the new 5040 'ENGINE_TABLE' mechanism that underlies the new code. Similarly, 5041 ENGINE_cpy() has been removed as it cannot be consistently defined in 5042 the new code. 5043 [Geoff Thorpe] 5044 5045 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds. 5046 [Steve Henson] 5047 5048 *) Change mkdef.pl to sort symbols that get the same entry number, 5049 and make sure the automatically generated functions ERR_load_* 5050 become part of libeay.num as well. 5051 [Richard Levitte] 5052 5053 *) New function SSL_renegotiate_pending(). This returns true once 5054 renegotiation has been requested (either SSL_renegotiate() call 5055 or HelloRequest/ClientHello receveived from the peer) and becomes 5056 false once a handshake has been completed. 5057 (For servers, SSL_renegotiate() followed by SSL_do_handshake() 5058 sends a HelloRequest, but does not ensure that a handshake takes 5059 place. SSL_renegotiate_pending() is useful for checking if the 5060 client has followed the request.) 5061 [Bodo Moeller] 5062 5063 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION. 5064 By default, clients may request session resumption even during 5065 renegotiation (if session ID contexts permit); with this option, 5066 session resumption is possible only in the first handshake. 5067 5068 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes 5069 more bits available for options that should not be part of 5070 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION). 5071 [Bodo Moeller] 5072 5073 *) Add some demos for certificate and certificate request creation. 5074 [Steve Henson] 5075 5076 *) Make maximum certificate chain size accepted from the peer application 5077 settable (SSL*_get/set_max_cert_list()), as proposed by 5078 "Douglas E. Engert" <deengert@anl.gov>. 5079 [Lutz Jaenicke] 5080 5081 *) Add support for shared libraries for Unixware-7 5082 (Boyd Lynn Gerber <gerberb@zenez.com>). 5083 [Lutz Jaenicke] 5084 5085 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to 5086 be done prior to destruction. Use this to unload error strings from 5087 ENGINEs that load their own error strings. NB: This adds two new API 5088 functions to "get" and "set" this destroy handler in an ENGINE. 5089 [Geoff Thorpe] 5090 5091 *) Alter all existing ENGINE implementations (except "openssl" and 5092 "openbsd") to dynamically instantiate their own error strings. This 5093 makes them more flexible to be built both as statically-linked ENGINEs 5094 and self-contained shared-libraries loadable via the "dynamic" ENGINE. 5095 Also, add stub code to each that makes building them as self-contained 5096 shared-libraries easier (see README.ENGINE). 5097 [Geoff Thorpe] 5098 5099 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE 5100 implementations into applications that are completely implemented in 5101 self-contained shared-libraries. The "dynamic" ENGINE exposes control 5102 commands that can be used to configure what shared-library to load and 5103 to control aspects of the way it is handled. Also, made an update to 5104 the README.ENGINE file that brings its information up-to-date and 5105 provides some information and instructions on the "dynamic" ENGINE 5106 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc). 5107 [Geoff Thorpe] 5108 5109 *) Make it possible to unload ranges of ERR strings with a new 5110 "ERR_unload_strings" function. 5111 [Geoff Thorpe] 5112 5113 *) Add a copy() function to EVP_MD. 5114 [Ben Laurie] 5115 5116 *) Make EVP_MD routines take a context pointer instead of just the 5117 md_data void pointer. 5118 [Ben Laurie] 5119 5120 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates 5121 that the digest can only process a single chunk of data 5122 (typically because it is provided by a piece of 5123 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application 5124 is only going to provide a single chunk of data, and hence the 5125 framework needn't accumulate the data for oneshot drivers. 5126 [Ben Laurie] 5127 5128 *) As with "ERR", make it possible to replace the underlying "ex_data" 5129 functions. This change also alters the storage and management of global 5130 ex_data state - it's now all inside ex_data.c and all "class" code (eg. 5131 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class 5132 index counters. The API functions that use this state have been changed 5133 to take a "class_index" rather than pointers to the class's local STACK 5134 and counter, and there is now an API function to dynamically create new 5135 classes. This centralisation allows us to (a) plug a lot of the 5136 thread-safety problems that existed, and (b) makes it possible to clean 5137 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b) 5138 such data would previously have always leaked in application code and 5139 workarounds were in place to make the memory debugging turn a blind eye 5140 to it. Application code that doesn't use this new function will still 5141 leak as before, but their memory debugging output will announce it now 5142 rather than letting it slide. 5143 5144 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change 5145 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now 5146 has a return value to indicate success or failure. 5147 [Geoff Thorpe] 5148 5149 *) Make it possible to replace the underlying "ERR" functions such that the 5150 global state (2 LHASH tables and 2 locks) is only used by the "default" 5151 implementation. This change also adds two functions to "get" and "set" 5152 the implementation prior to it being automatically set the first time 5153 any other ERR function takes place. Ie. an application can call "get", 5154 pass the return value to a module it has just loaded, and that module 5155 can call its own "set" function using that value. This means the 5156 module's "ERR" operations will use (and modify) the error state in the 5157 application and not in its own statically linked copy of OpenSSL code. 5158 [Geoff Thorpe] 5159 5160 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment 5161 reference counts. This performs normal REF_PRINT/REF_CHECK macros on 5162 the operation, and provides a more encapsulated way for external code 5163 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code 5164 to use these functions rather than manually incrementing the counts. 5165 5166 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()". 5167 [Geoff Thorpe] 5168 5169 *) Add EVP test program. 5170 [Ben Laurie] 5171 5172 *) Add symmetric cipher support to ENGINE. Expect the API to change! 5173 [Ben Laurie] 5174 5175 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name() 5176 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(), 5177 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate(). 5178 These allow a CRL to be built without having to access X509_CRL fields 5179 directly. Modify 'ca' application to use new functions. 5180 [Steve Henson] 5181 5182 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended 5183 bug workarounds. Rollback attack detection is a security feature. 5184 The problem will only arise on OpenSSL servers when TLSv1 is not 5185 available (sslv3_server_method() or SSL_OP_NO_TLSv1). 5186 Software authors not wanting to support TLSv1 will have special reasons 5187 for their choice and can explicitly enable this option. 5188 [Bodo Moeller, Lutz Jaenicke] 5189 5190 *) Rationalise EVP so it can be extended: don't include a union of 5191 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX 5192 (similar to those existing for EVP_CIPHER_CTX). 5193 Usage example: 5194 5195 EVP_MD_CTX md; 5196 5197 EVP_MD_CTX_init(&md); /* new function call */ 5198 EVP_DigestInit(&md, EVP_sha1()); 5199 EVP_DigestUpdate(&md, in, len); 5200 EVP_DigestFinal(&md, out, NULL); 5201 EVP_MD_CTX_cleanup(&md); /* new function call */ 5202 5203 [Ben Laurie] 5204 5205 *) Make DES key schedule conform to the usual scheme, as well as 5206 correcting its structure. This means that calls to DES functions 5207 now have to pass a pointer to a des_key_schedule instead of a 5208 plain des_key_schedule (which was actually always a pointer 5209 anyway): E.g., 5210 5211 des_key_schedule ks; 5212 5213 des_set_key_checked(..., &ks); 5214 des_ncbc_encrypt(..., &ks, ...); 5215 5216 (Note that a later change renames 'des_...' into 'DES_...'.) 5217 [Ben Laurie] 5218 5219 *) Initial reduction of linker bloat: the use of some functions, such as 5220 PEM causes large amounts of unused functions to be linked in due to 5221 poor organisation. For example pem_all.c contains every PEM function 5222 which has a knock on effect of linking in large amounts of (unused) 5223 ASN1 code. Grouping together similar functions and splitting unrelated 5224 functions prevents this. 5225 [Steve Henson] 5226 5227 *) Cleanup of EVP macros. 5228 [Ben Laurie] 5229 5230 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the 5231 correct _ecb suffix. 5232 [Ben Laurie] 5233 5234 *) Add initial OCSP responder support to ocsp application. The 5235 revocation information is handled using the text based index 5236 use by the ca application. The responder can either handle 5237 requests generated internally, supplied in files (for example 5238 via a CGI script) or using an internal minimal server. 5239 [Steve Henson] 5240 5241 *) Add configuration choices to get zlib compression for TLS. 5242 [Richard Levitte] 5243 5244 *) Changes to Kerberos SSL for RFC 2712 compliance: 5245 1. Implemented real KerberosWrapper, instead of just using 5246 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>] 5247 2. Implemented optional authenticator field of KerberosWrapper. 5248 5249 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req, 5250 and authenticator structs; see crypto/krb5/. 5251 5252 Generalized Kerberos calls to support multiple Kerberos libraries. 5253 [Vern Staats <staatsvr@asc.hpc.mil>, 5254 Jeffrey Altman <jaltman@columbia.edu> 5255 via Richard Levitte] 5256 5257 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it 5258 already does with RSA. testdsa.h now has 'priv_key/pub_key' 5259 values for each of the key sizes rather than having just 5260 parameters (and 'speed' generating keys each time). 5261 [Geoff Thorpe] 5262 5263 *) Speed up EVP routines. 5264 Before: 5265encrypt 5266type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes 5267des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k 5268des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k 5269des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k 5270decrypt 5271des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k 5272des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k 5273des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k 5274 After: 5275encrypt 5276des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k 5277decrypt 5278des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k 5279 [Ben Laurie] 5280 5281 *) Added the OS2-EMX target. 5282 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte] 5283 5284 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions 5285 to support NCONF routines in extension code. New function CONF_set_nconf() 5286 to allow functions which take an NCONF to also handle the old LHASH 5287 structure: this means that the old CONF compatible routines can be 5288 retained (in particular wrt extensions) without having to duplicate the 5289 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack. 5290 [Steve Henson] 5291 5292 *) Enhance the general user interface with mechanisms for inner control 5293 and with possibilities to have yes/no kind of prompts. 5294 [Richard Levitte] 5295 5296 *) Change all calls to low level digest routines in the library and 5297 applications to use EVP. Add missing calls to HMAC_cleanup() and 5298 don't assume HMAC_CTX can be copied using memcpy(). 5299 [Verdon Walker <VWalker@novell.com>, Steve Henson] 5300 5301 *) Add the possibility to control engines through control names but with 5302 arbitrary arguments instead of just a string. 5303 Change the key loaders to take a UI_METHOD instead of a callback 5304 function pointer. NOTE: this breaks binary compatibility with earlier 5305 versions of OpenSSL [engine]. 5306 Adapt the nCipher code for these new conditions and add a card insertion 5307 callback. 5308 [Richard Levitte] 5309 5310 *) Enhance the general user interface with mechanisms to better support 5311 dialog box interfaces, application-defined prompts, the possibility 5312 to use defaults (for example default passwords from somewhere else) 5313 and interrupts/cancellations. 5314 [Richard Levitte] 5315 5316 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name 5317 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility. 5318 [Steve Henson] 5319 5320 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also 5321 tidy up some unnecessarily weird code in 'sk_new()'). 5322 [Geoff, reported by Diego Tartara <dtartara@novamens.com>] 5323 5324 *) Change the key loading routines for ENGINEs to use the same kind 5325 callback (pem_password_cb) as all other routines that need this 5326 kind of callback. 5327 [Richard Levitte] 5328 5329 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with 5330 256 bit (=32 byte) keys. Of course seeding with more entropy bytes 5331 than this minimum value is recommended. 5332 [Lutz Jaenicke] 5333 5334 *) New random seeder for OpenVMS, using the system process statistics 5335 that are easily reachable. 5336 [Richard Levitte] 5337 5338 *) Windows apparently can't transparently handle global 5339 variables defined in DLLs. Initialisations such as: 5340 5341 const ASN1_ITEM *it = &ASN1_INTEGER_it; 5342 5343 wont compile. This is used by the any applications that need to 5344 declare their own ASN1 modules. This was fixed by adding the option 5345 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly 5346 needed for static libraries under Win32. 5347 [Steve Henson] 5348 5349 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle 5350 setting of purpose and trust fields. New X509_STORE trust and 5351 purpose functions and tidy up setting in other SSL functions. 5352 [Steve Henson] 5353 5354 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE 5355 structure. These are inherited by X509_STORE_CTX when it is 5356 initialised. This allows various defaults to be set in the 5357 X509_STORE structure (such as flags for CRL checking and custom 5358 purpose or trust settings) for functions which only use X509_STORE_CTX 5359 internally such as S/MIME. 5360 5361 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and 5362 trust settings if they are not set in X509_STORE. This allows X509_STORE 5363 purposes and trust (in S/MIME for example) to override any set by default. 5364 5365 Add command line options for CRL checking to smime, s_client and s_server 5366 applications. 5367 [Steve Henson] 5368 5369 *) Initial CRL based revocation checking. If the CRL checking flag(s) 5370 are set then the CRL is looked up in the X509_STORE structure and 5371 its validity and signature checked, then if the certificate is found 5372 in the CRL the verify fails with a revoked error. 5373 5374 Various new CRL related callbacks added to X509_STORE_CTX structure. 5375 5376 Command line options added to 'verify' application to support this. 5377 5378 This needs some additional work, such as being able to handle multiple 5379 CRLs with different times, extension based lookup (rather than just 5380 by subject name) and ultimately more complete V2 CRL extension 5381 handling. 5382 [Steve Henson] 5383 5384 *) Add a general user interface API (crypto/ui/). This is designed 5385 to replace things like des_read_password and friends (backward 5386 compatibility functions using this new API are provided). 5387 The purpose is to remove prompting functions from the DES code 5388 section as well as provide for prompting through dialog boxes in 5389 a window system and the like. 5390 [Richard Levitte] 5391 5392 *) Add "ex_data" support to ENGINE so implementations can add state at a 5393 per-structure level rather than having to store it globally. 5394 [Geoff] 5395 5396 *) Make it possible for ENGINE structures to be copied when retrieved by 5397 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY. 5398 This causes the "original" ENGINE structure to act like a template, 5399 analogous to the RSA vs. RSA_METHOD type of separation. Because of this 5400 operational state can be localised to each ENGINE structure, despite the 5401 fact they all share the same "methods". New ENGINE structures returned in 5402 this case have no functional references and the return value is the single 5403 structural reference. This matches the single structural reference returned 5404 by ENGINE_by_id() normally, when it is incremented on the pre-existing 5405 ENGINE structure. 5406 [Geoff] 5407 5408 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this 5409 needs to match any other type at all we need to manually clear the 5410 tag cache. 5411 [Steve Henson] 5412 5413 *) Changes to the "openssl engine" utility to include; 5414 - verbosity levels ('-v', '-vv', and '-vvv') that provide information 5415 about an ENGINE's available control commands. 5416 - executing control commands from command line arguments using the 5417 '-pre' and '-post' switches. '-post' is only used if '-t' is 5418 specified and the ENGINE is successfully initialised. The syntax for 5419 the individual commands are colon-separated, for example; 5420 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so 5421 [Geoff] 5422 5423 *) New dynamic control command support for ENGINEs. ENGINEs can now 5424 declare their own commands (numbers), names (strings), descriptions, 5425 and input types for run-time discovery by calling applications. A 5426 subset of these commands are implicitly classed as "executable" 5427 depending on their input type, and only these can be invoked through 5428 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this 5429 can be based on user input, config files, etc). The distinction is 5430 that "executable" commands cannot return anything other than a boolean 5431 result and can only support numeric or string input, whereas some 5432 discoverable commands may only be for direct use through 5433 ENGINE_ctrl(), eg. supporting the exchange of binary data, function 5434 pointers, or other custom uses. The "executable" commands are to 5435 support parameterisations of ENGINE behaviour that can be 5436 unambiguously defined by ENGINEs and used consistently across any 5437 OpenSSL-based application. Commands have been added to all the 5438 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow 5439 control over shared-library paths without source code alterations. 5440 [Geoff] 5441 5442 *) Changed all ENGINE implementations to dynamically allocate their 5443 ENGINEs rather than declaring them statically. Apart from this being 5444 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction, 5445 this also allows the implementations to compile without using the 5446 internal engine_int.h header. 5447 [Geoff] 5448 5449 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a 5450 'const' value. Any code that should be able to modify a RAND_METHOD 5451 should already have non-const pointers to it (ie. they should only 5452 modify their own ones). 5453 [Geoff] 5454 5455 *) Made a variety of little tweaks to the ENGINE code. 5456 - "atalla" and "ubsec" string definitions were moved from header files 5457 to C code. "nuron" string definitions were placed in variables 5458 rather than hard-coded - allowing parameterisation of these values 5459 later on via ctrl() commands. 5460 - Removed unused "#if 0"'d code. 5461 - Fixed engine list iteration code so it uses ENGINE_free() to release 5462 structural references. 5463 - Constified the RAND_METHOD element of ENGINE structures. 5464 - Constified various get/set functions as appropriate and added 5465 missing functions (including a catch-all ENGINE_cpy that duplicates 5466 all ENGINE values onto a new ENGINE except reference counts/state). 5467 - Removed NULL parameter checks in get/set functions. Setting a method 5468 or function to NULL is a way of cancelling out a previously set 5469 value. Passing a NULL ENGINE parameter is just plain stupid anyway 5470 and doesn't justify the extra error symbols and code. 5471 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for 5472 flags from engine_int.h to engine.h. 5473 - Changed prototypes for ENGINE handler functions (init(), finish(), 5474 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter. 5475 [Geoff] 5476 5477 *) Implement binary inversion algorithm for BN_mod_inverse in addition 5478 to the algorithm using long division. The binary algorithm can be 5479 used only if the modulus is odd. On 32-bit systems, it is faster 5480 only for relatively small moduli (roughly 20-30% for 128-bit moduli, 5481 roughly 5-15% for 256-bit moduli), so we use it only for moduli 5482 up to 450 bits. In 64-bit environments, the binary algorithm 5483 appears to be advantageous for much longer moduli; here we use it 5484 for moduli up to 2048 bits. 5485 [Bodo Moeller] 5486 5487 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code 5488 could not support the combine flag in choice fields. 5489 [Steve Henson] 5490 5491 *) Add a 'copy_extensions' option to the 'ca' utility. This copies 5492 extensions from a certificate request to the certificate. 5493 [Steve Henson] 5494 5495 *) Allow multiple 'certopt' and 'nameopt' options to be separated 5496 by commas. Add 'namopt' and 'certopt' options to the 'ca' config 5497 file: this allows the display of the certificate about to be 5498 signed to be customised, to allow certain fields to be included 5499 or excluded and extension details. The old system didn't display 5500 multicharacter strings properly, omitted fields not in the policy 5501 and couldn't display additional details such as extensions. 5502 [Steve Henson] 5503 5504 *) Function EC_POINTs_mul for multiple scalar multiplication 5505 of an arbitrary number of elliptic curve points 5506 \sum scalars[i]*points[i], 5507 optionally including the generator defined for the EC_GROUP: 5508 scalar*generator + \sum scalars[i]*points[i]. 5509 5510 EC_POINT_mul is a simple wrapper function for the typical case 5511 that the point list has just one item (besides the optional 5512 generator). 5513 [Bodo Moeller] 5514 5515 *) First EC_METHODs for curves over GF(p): 5516 5517 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr 5518 operations and provides various method functions that can also 5519 operate with faster implementations of modular arithmetic. 5520 5521 EC_GFp_mont_method() reuses most functions that are part of 5522 EC_GFp_simple_method, but uses Montgomery arithmetic. 5523 5524 [Bodo Moeller; point addition and point doubling 5525 implementation directly derived from source code provided by 5526 Lenka Fibikova <fibikova@exp-math.uni-essen.de>] 5527 5528 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h, 5529 crypto/ec/ec_lib.c): 5530 5531 Curves are EC_GROUP objects (with an optional group generator) 5532 based on EC_METHODs that are built into the library. 5533 5534 Points are EC_POINT objects based on EC_GROUP objects. 5535 5536 Most of the framework would be able to handle curves over arbitrary 5537 finite fields, but as there are no obvious types for fields other 5538 than GF(p), some functions are limited to that for now. 5539 [Bodo Moeller] 5540 5541 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires 5542 that the file contains a complete HTTP response. 5543 [Richard Levitte] 5544 5545 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl 5546 change the def and num file printf format specifier from "%-40sXXX" 5547 to "%-39s XXX". The latter will always guarantee a space after the 5548 field while the former will cause them to run together if the field 5549 is 40 of more characters long. 5550 [Steve Henson] 5551 5552 *) Constify the cipher and digest 'method' functions and structures 5553 and modify related functions to take constant EVP_MD and EVP_CIPHER 5554 pointers. 5555 [Steve Henson] 5556 5557 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them 5558 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32. 5559 [Bodo Moeller] 5560 5561 *) Modify EVP_Digest*() routines so they now return values. Although the 5562 internal software routines can never fail additional hardware versions 5563 might. 5564 [Steve Henson] 5565 5566 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts: 5567 5568 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7 5569 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32. 5570 5571 ASN1 error codes 5572 ERR_R_NESTED_ASN1_ERROR 5573 ... 5574 ERR_R_MISSING_ASN1_EOS 5575 were 4 .. 9, conflicting with 5576 ERR_LIB_RSA (= ERR_R_RSA_LIB) 5577 ... 5578 ERR_LIB_PEM (= ERR_R_PEM_LIB). 5579 They are now 58 .. 63 (i.e., just below ERR_R_FATAL). 5580 5581 Add new error code 'ERR_R_INTERNAL_ERROR'. 5582 [Bodo Moeller] 5583 5584 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock 5585 suffices. 5586 [Bodo Moeller] 5587 5588 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This 5589 sets the subject name for a new request or supersedes the 5590 subject name in a given request. Formats that can be parsed are 5591 'CN=Some Name, OU=myOU, C=IT' 5592 and 5593 'CN=Some Name/OU=myOU/C=IT'. 5594 5595 Add options '-batch' and '-verbose' to 'openssl req'. 5596 [Massimiliano Pala <madwolf@hackmasters.net>] 5597 5598 *) Introduce the possibility to access global variables through 5599 functions on platform were that's the best way to handle exporting 5600 global variables in shared libraries. To enable this functionality, 5601 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro 5602 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter 5603 is normally done by Configure or something similar). 5604 5605 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL 5606 in the source file (foo.c) like this: 5607 5608 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1; 5609 OPENSSL_IMPLEMENT_GLOBAL(double,bar); 5610 5611 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL 5612 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this: 5613 5614 OPENSSL_DECLARE_GLOBAL(int,foo); 5615 #define foo OPENSSL_GLOBAL_REF(foo) 5616 OPENSSL_DECLARE_GLOBAL(double,bar); 5617 #define bar OPENSSL_GLOBAL_REF(bar) 5618 5619 The #defines are very important, and therefore so is including the 5620 header file everywhere where the defined globals are used. 5621 5622 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition 5623 of ASN.1 items, but that structure is a bit different. 5624 5625 The largest change is in util/mkdef.pl which has been enhanced with 5626 better and easier to understand logic to choose which symbols should 5627 go into the Windows .def files as well as a number of fixes and code 5628 cleanup (among others, algorithm keywords are now sorted 5629 lexicographically to avoid constant rewrites). 5630 [Richard Levitte] 5631 5632 *) In BN_div() keep a copy of the sign of 'num' before writing the 5633 result to 'rm' because if rm==num the value will be overwritten 5634 and produce the wrong result if 'num' is negative: this caused 5635 problems with BN_mod() and BN_nnmod(). 5636 [Steve Henson] 5637 5638 *) Function OCSP_request_verify(). This checks the signature on an 5639 OCSP request and verifies the signer certificate. The signer 5640 certificate is just checked for a generic purpose and OCSP request 5641 trust settings. 5642 [Steve Henson] 5643 5644 *) Add OCSP_check_validity() function to check the validity of OCSP 5645 responses. OCSP responses are prepared in real time and may only 5646 be a few seconds old. Simply checking that the current time lies 5647 between thisUpdate and nextUpdate max reject otherwise valid responses 5648 caused by either OCSP responder or client clock inaccuracy. Instead 5649 we allow thisUpdate and nextUpdate to fall within a certain period of 5650 the current time. The age of the response can also optionally be 5651 checked. Two new options -validity_period and -status_age added to 5652 ocsp utility. 5653 [Steve Henson] 5654 5655 *) If signature or public key algorithm is unrecognized print out its 5656 OID rather that just UNKNOWN. 5657 [Steve Henson] 5658 5659 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and 5660 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate 5661 ID to be generated from the issuer certificate alone which can then be 5662 passed to OCSP_id_issuer_cmp(). 5663 [Steve Henson] 5664 5665 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new 5666 ASN1 modules to export functions returning ASN1_ITEM pointers 5667 instead of the ASN1_ITEM structures themselves. This adds several 5668 new macros which allow the underlying ASN1 function/structure to 5669 be accessed transparently. As a result code should not use ASN1_ITEM 5670 references directly (such as &X509_it) but instead use the relevant 5671 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow 5672 use of the new ASN1 code on platforms where exporting structures 5673 is problematical (for example in shared libraries) but exporting 5674 functions returning pointers to structures is not. 5675 [Steve Henson] 5676 5677 *) Add support for overriding the generation of SSL/TLS session IDs. 5678 These callbacks can be registered either in an SSL_CTX or per SSL. 5679 The purpose of this is to allow applications to control, if they wish, 5680 the arbitrary values chosen for use as session IDs, particularly as it 5681 can be useful for session caching in multiple-server environments. A 5682 command-line switch for testing this (and any client code that wishes 5683 to use such a feature) has been added to "s_server". 5684 [Geoff Thorpe, Lutz Jaenicke] 5685 5686 *) Modify mkdef.pl to recognise and parse preprocessor conditionals 5687 of the form '#if defined(...) || defined(...) || ...' and 5688 '#if !defined(...) && !defined(...) && ...'. This also avoids 5689 the growing number of special cases it was previously handling. 5690 [Richard Levitte] 5691 5692 *) Make all configuration macros available for application by making 5693 sure they are available in opensslconf.h, by giving them names starting 5694 with "OPENSSL_" to avoid conflicts with other packages and by making 5695 sure e_os2.h will cover all platform-specific cases together with 5696 opensslconf.h. 5697 Additionally, it is now possible to define configuration/platform- 5698 specific names (called "system identities"). In the C code, these 5699 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another 5700 macro with the name beginning with "OPENSSL_SYS_", which is determined 5701 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on 5702 what is available. 5703 [Richard Levitte] 5704 5705 *) New option -set_serial to 'req' and 'x509' this allows the serial 5706 number to use to be specified on the command line. Previously self 5707 signed certificates were hard coded with serial number 0 and the 5708 CA options of 'x509' had to use a serial number in a file which was 5709 auto incremented. 5710 [Steve Henson] 5711 5712 *) New options to 'ca' utility to support V2 CRL entry extensions. 5713 Currently CRL reason, invalidity date and hold instruction are 5714 supported. Add new CRL extensions to V3 code and some new objects. 5715 [Steve Henson] 5716 5717 *) New function EVP_CIPHER_CTX_set_padding() this is used to 5718 disable standard block padding (aka PKCS#5 padding) in the EVP 5719 API, which was previously mandatory. This means that the data is 5720 not padded in any way and so the total length much be a multiple 5721 of the block size, otherwise an error occurs. 5722 [Steve Henson] 5723 5724 *) Initial (incomplete) OCSP SSL support. 5725 [Steve Henson] 5726 5727 *) New function OCSP_parse_url(). This splits up a URL into its host, 5728 port and path components: primarily to parse OCSP URLs. New -url 5729 option to ocsp utility. 5730 [Steve Henson] 5731 5732 *) New nonce behavior. The return value of OCSP_check_nonce() now 5733 reflects the various checks performed. Applications can decide 5734 whether to tolerate certain situations such as an absent nonce 5735 in a response when one was present in a request: the ocsp application 5736 just prints out a warning. New function OCSP_add1_basic_nonce() 5737 this is to allow responders to include a nonce in a response even if 5738 the request is nonce-less. 5739 [Steve Henson] 5740 5741 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are 5742 skipped when using openssl x509 multiple times on a single input file, 5743 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs". 5744 [Bodo Moeller] 5745 5746 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string() 5747 set string type: to handle setting ASN1_TIME structures. Fix ca 5748 utility to correctly initialize revocation date of CRLs. 5749 [Steve Henson] 5750 5751 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override 5752 the clients preferred ciphersuites and rather use its own preferences. 5753 Should help to work around M$ SGC (Server Gated Cryptography) bug in 5754 Internet Explorer by ensuring unchanged hash method during stepup. 5755 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.) 5756 [Lutz Jaenicke] 5757 5758 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael 5759 to aes and add a new 'exist' option to print out symbols that don't 5760 appear to exist. 5761 [Steve Henson] 5762 5763 *) Additional options to ocsp utility to allow flags to be set and 5764 additional certificates supplied. 5765 [Steve Henson] 5766 5767 *) Add the option -VAfile to 'openssl ocsp', so the user can give the 5768 OCSP client a number of certificate to only verify the response 5769 signature against. 5770 [Richard Levitte] 5771 5772 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to 5773 handle the new API. Currently only ECB, CBC modes supported. Add new 5774 AES OIDs. 5775 5776 Add TLS AES ciphersuites as described in RFC3268, "Advanced 5777 Encryption Standard (AES) Ciphersuites for Transport Layer 5778 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were 5779 not enabled by default and were not part of the "ALL" ciphersuite 5780 alias because they were not yet official; they could be 5781 explicitly requested by specifying the "AESdraft" ciphersuite 5782 group alias. In the final release of OpenSSL 0.9.7, the group 5783 alias is called "AES" and is part of "ALL".) 5784 [Ben Laurie, Steve Henson, Bodo Moeller] 5785 5786 *) New function OCSP_copy_nonce() to copy nonce value (if present) from 5787 request to response. 5788 [Steve Henson] 5789 5790 *) Functions for OCSP responders. OCSP_request_onereq_count(), 5791 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info() 5792 extract information from a certificate request. OCSP_response_create() 5793 creates a response and optionally adds a basic response structure. 5794 OCSP_basic_add1_status() adds a complete single response to a basic 5795 response and returns the OCSP_SINGLERESP structure just added (to allow 5796 extensions to be included for example). OCSP_basic_add1_cert() adds a 5797 certificate to a basic response and OCSP_basic_sign() signs a basic 5798 response with various flags. New helper functions ASN1_TIME_check() 5799 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime() 5800 (converts ASN1_TIME to GeneralizedTime). 5801 [Steve Henson] 5802 5803 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}() 5804 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key 5805 structure from a certificate. X509_pubkey_digest() digests the public_key 5806 contents: this is used in various key identifiers. 5807 [Steve Henson] 5808 5809 *) Make sk_sort() tolerate a NULL argument. 5810 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>] 5811 5812 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates 5813 passed by the function are trusted implicitly. If any of them signed the 5814 response then it is assumed to be valid and is not verified. 5815 [Steve Henson] 5816 5817 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT 5818 to data. This was previously part of the PKCS7 ASN1 code. This 5819 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures. 5820 [Steve Henson, reported by Kenneth R. Robinette 5821 <support@securenetterm.com>] 5822 5823 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1 5824 routines: without these tracing memory leaks is very painful. 5825 Fix leaks in PKCS12 and PKCS7 routines. 5826 [Steve Henson] 5827 5828 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new(). 5829 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which 5830 effectively meant GeneralizedTime would never be used. Now it 5831 is initialised to -1 but X509_time_adj() now has to check the value 5832 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or 5833 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime. 5834 [Steve Henson, reported by Kenneth R. Robinette 5835 <support@securenetterm.com>] 5836 5837 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously 5838 result in a zero length in the ASN1_INTEGER structure which was 5839 not consistent with the structure when d2i_ASN1_INTEGER() was used 5840 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER() 5841 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER() 5842 where it did not print out a minus for negative ASN1_INTEGER. 5843 [Steve Henson] 5844 5845 *) Add summary printout to ocsp utility. The various functions which 5846 convert status values to strings have been renamed to: 5847 OCSP_response_status_str(), OCSP_cert_status_str() and 5848 OCSP_crl_reason_str() and are no longer static. New options 5849 to verify nonce values and to disable verification. OCSP response 5850 printout format cleaned up. 5851 [Steve Henson] 5852 5853 *) Add additional OCSP certificate checks. These are those specified 5854 in RFC2560. This consists of two separate checks: the CA of the 5855 certificate being checked must either be the OCSP signer certificate 5856 or the issuer of the OCSP signer certificate. In the latter case the 5857 OCSP signer certificate must contain the OCSP signing extended key 5858 usage. This check is performed by attempting to match the OCSP 5859 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash 5860 in the OCSP_CERTID structures of the response. 5861 [Steve Henson] 5862 5863 *) Initial OCSP certificate verification added to OCSP_basic_verify() 5864 and related routines. This uses the standard OpenSSL certificate 5865 verify routines to perform initial checks (just CA validity) and 5866 to obtain the certificate chain. Then additional checks will be 5867 performed on the chain. Currently the root CA is checked to see 5868 if it is explicitly trusted for OCSP signing. This is used to set 5869 a root CA as a global signing root: that is any certificate that 5870 chains to that CA is an acceptable OCSP signing certificate. 5871 [Steve Henson] 5872 5873 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3 5874 extensions from a separate configuration file. 5875 As when reading extensions from the main configuration file, 5876 the '-extensions ...' option may be used for specifying the 5877 section to use. 5878 [Massimiliano Pala <madwolf@comune.modena.it>] 5879 5880 *) New OCSP utility. Allows OCSP requests to be generated or 5881 read. The request can be sent to a responder and the output 5882 parsed, outputed or printed in text form. Not complete yet: 5883 still needs to check the OCSP response validity. 5884 [Steve Henson] 5885 5886 *) New subcommands for 'openssl ca': 5887 'openssl ca -status <serial>' prints the status of the cert with 5888 the given serial number (according to the index file). 5889 'openssl ca -updatedb' updates the expiry status of certificates 5890 in the index file. 5891 [Massimiliano Pala <madwolf@comune.modena.it>] 5892 5893 *) New '-newreq-nodes' command option to CA.pl. This is like 5894 '-newreq', but calls 'openssl req' with the '-nodes' option 5895 so that the resulting key is not encrypted. 5896 [Damien Miller <djm@mindrot.org>] 5897 5898 *) New configuration for the GNU Hurd. 5899 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte] 5900 5901 *) Initial code to implement OCSP basic response verify. This 5902 is currently incomplete. Currently just finds the signer's 5903 certificate and verifies the signature on the response. 5904 [Steve Henson] 5905 5906 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in 5907 value of OPENSSLDIR. This is available via the new '-d' option 5908 to 'openssl version', and is also included in 'openssl version -a'. 5909 [Bodo Moeller] 5910 5911 *) Allowing defining memory allocation callbacks that will be given 5912 file name and line number information in additional arguments 5913 (a const char* and an int). The basic functionality remains, as 5914 well as the original possibility to just replace malloc(), 5915 realloc() and free() by functions that do not know about these 5916 additional arguments. To register and find out the current 5917 settings for extended allocation functions, the following 5918 functions are provided: 5919 5920 CRYPTO_set_mem_ex_functions 5921 CRYPTO_set_locked_mem_ex_functions 5922 CRYPTO_get_mem_ex_functions 5923 CRYPTO_get_locked_mem_ex_functions 5924 5925 These work the same way as CRYPTO_set_mem_functions and friends. 5926 CRYPTO_get_[locked_]mem_functions now writes 0 where such an 5927 extended allocation function is enabled. 5928 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where 5929 a conventional allocation function is enabled. 5930 [Richard Levitte, Bodo Moeller] 5931 5932 *) Finish off removing the remaining LHASH function pointer casts. 5933 There should no longer be any prototype-casting required when using 5934 the LHASH abstraction, and any casts that remain are "bugs". See 5935 the callback types and macros at the head of lhash.h for details 5936 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example). 5937 [Geoff Thorpe] 5938 5939 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant. 5940 If /dev/[u]random devices are not available or do not return enough 5941 entropy, EGD style sockets (served by EGD or PRNGD) will automatically 5942 be queried. 5943 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and 5944 /etc/entropy will be queried once each in this sequence, quering stops 5945 when enough entropy was collected without querying more sockets. 5946 [Lutz Jaenicke] 5947 5948 *) Change the Unix RAND_poll() variant to be able to poll several 5949 random devices, as specified by DEVRANDOM, until a sufficient amount 5950 of data has been collected. We spend at most 10 ms on each file 5951 (select timeout) and read in non-blocking mode. DEVRANDOM now 5952 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom" 5953 (previously it was just the string "/dev/urandom"), so on typical 5954 platforms the 10 ms delay will never occur. 5955 Also separate out the Unix variant to its own file, rand_unix.c. 5956 For VMS, there's a currently-empty rand_vms.c. 5957 [Richard Levitte] 5958 5959 *) Move OCSP client related routines to ocsp_cl.c. These 5960 provide utility functions which an application needing 5961 to issue a request to an OCSP responder and analyse the 5962 response will typically need: as opposed to those which an 5963 OCSP responder itself would need which will be added later. 5964 5965 OCSP_request_sign() signs an OCSP request with an API similar 5966 to PKCS7_sign(). OCSP_response_status() returns status of OCSP 5967 response. OCSP_response_get1_basic() extracts basic response 5968 from response. OCSP_resp_find_status(): finds and extracts status 5969 information from an OCSP_CERTID structure (which will be created 5970 when the request structure is built). These are built from lower 5971 level functions which work on OCSP_SINGLERESP structures but 5972 wont normally be used unless the application wishes to examine 5973 extensions in the OCSP response for example. 5974 5975 Replace nonce routines with a pair of functions. 5976 OCSP_request_add1_nonce() adds a nonce value and optionally 5977 generates a random value. OCSP_check_nonce() checks the 5978 validity of the nonce in an OCSP response. 5979 [Steve Henson] 5980 5981 *) Change function OCSP_request_add() to OCSP_request_add0_id(). 5982 This doesn't copy the supplied OCSP_CERTID and avoids the 5983 need to free up the newly created id. Change return type 5984 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure. 5985 This can then be used to add extensions to the request. 5986 Deleted OCSP_request_new(), since most of its functionality 5987 is now in OCSP_REQUEST_new() (and the case insensitive name 5988 clash) apart from the ability to set the request name which 5989 will be added elsewhere. 5990 [Steve Henson] 5991 5992 *) Update OCSP API. Remove obsolete extensions argument from 5993 various functions. Extensions are now handled using the new 5994 OCSP extension code. New simple OCSP HTTP function which 5995 can be used to send requests and parse the response. 5996 [Steve Henson] 5997 5998 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new 5999 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN 6000 uses the special reorder version of SET OF to sort the attributes 6001 and reorder them to match the encoded order. This resolves a long 6002 standing problem: a verify on a PKCS7 structure just after signing 6003 it used to fail because the attribute order did not match the 6004 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes: 6005 it uses the received order. This is necessary to tolerate some broken 6006 software that does not order SET OF. This is handled by encoding 6007 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class) 6008 to produce the required SET OF. 6009 [Steve Henson] 6010 6011 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and 6012 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header 6013 files to get correct declarations of the ASN.1 item variables. 6014 [Richard Levitte] 6015 6016 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many 6017 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs: 6018 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was 6019 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i(). 6020 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant 6021 ASN1_ITEM and no wrapper functions. 6022 [Steve Henson] 6023 6024 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These 6025 replace the old function pointer based I/O routines. Change most of 6026 the *_d2i_bio() and *_d2i_fp() functions to use these. 6027 [Steve Henson] 6028 6029 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor 6030 lines, recognice more "algorithms" that can be deselected, and make 6031 it complain about algorithm deselection that isn't recognised. 6032 [Richard Levitte] 6033 6034 *) New ASN1 functions to handle dup, sign, verify, digest, pack and 6035 unpack operations in terms of ASN1_ITEM. Modify existing wrappers 6036 to use new functions. Add NO_ASN1_OLD which can be set to remove 6037 some old style ASN1 functions: this can be used to determine if old 6038 code will still work when these eventually go away. 6039 [Steve Henson] 6040 6041 *) New extension functions for OCSP structures, these follow the 6042 same conventions as certificates and CRLs. 6043 [Steve Henson] 6044 6045 *) New function X509V3_add1_i2d(). This automatically encodes and 6046 adds an extension. Its behaviour can be customised with various 6047 flags to append, replace or delete. Various wrappers added for 6048 certifcates and CRLs. 6049 [Steve Henson] 6050 6051 *) Fix to avoid calling the underlying ASN1 print routine when 6052 an extension cannot be parsed. Correct a typo in the 6053 OCSP_SERVICELOC extension. Tidy up print OCSP format. 6054 [Steve Henson] 6055 6056 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate 6057 entries for variables. 6058 [Steve Henson] 6059 6060 *) Add functionality to apps/openssl.c for detecting locking 6061 problems: As the program is single-threaded, all we have 6062 to do is register a locking callback using an array for 6063 storing which locks are currently held by the program. 6064 [Bodo Moeller] 6065 6066 *) Use a lock around the call to CRYPTO_get_ex_new_index() in 6067 SSL_get_ex_data_X509_STORE_idx(), which is used in 6068 ssl_verify_cert_chain() and thus can be called at any time 6069 during TLS/SSL handshakes so that thread-safety is essential. 6070 Unfortunately, the ex_data design is not at all suited 6071 for multi-threaded use, so it probably should be abolished. 6072 [Bodo Moeller] 6073 6074 *) Added Broadcom "ubsec" ENGINE to OpenSSL. 6075 [Broadcom, tweaked and integrated by Geoff Thorpe] 6076 6077 *) Move common extension printing code to new function 6078 X509V3_print_extensions(). Reorganise OCSP print routines and 6079 implement some needed OCSP ASN1 functions. Add OCSP extensions. 6080 [Steve Henson] 6081 6082 *) New function X509_signature_print() to remove duplication in some 6083 print routines. 6084 [Steve Henson] 6085 6086 *) Add a special meaning when SET OF and SEQUENCE OF flags are both 6087 set (this was treated exactly the same as SET OF previously). This 6088 is used to reorder the STACK representing the structure to match the 6089 encoding. This will be used to get round a problem where a PKCS7 6090 structure which was signed could not be verified because the STACK 6091 order did not reflect the encoded order. 6092 [Steve Henson] 6093 6094 *) Reimplement the OCSP ASN1 module using the new code. 6095 [Steve Henson] 6096 6097 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure 6098 for its ASN1 operations. The old style function pointers still exist 6099 for now but they will eventually go away. 6100 [Steve Henson] 6101 6102 *) Merge in replacement ASN1 code from the ASN1 branch. This almost 6103 completely replaces the old ASN1 functionality with a table driven 6104 encoder and decoder which interprets an ASN1_ITEM structure describing 6105 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is 6106 largely maintained. Almost all of the old asn1_mac.h macro based ASN1 6107 has also been converted to the new form. 6108 [Steve Henson] 6109 6110 *) Change BN_mod_exp_recp so that negative moduli are tolerated 6111 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set 6112 so that BN_mod_exp_mont and BN_mod_exp_mont_word work 6113 for negative moduli. 6114 [Bodo Moeller] 6115 6116 *) Fix BN_uadd and BN_usub: Always return non-negative results instead 6117 of not touching the result's sign bit. 6118 [Bodo Moeller] 6119 6120 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be 6121 set. 6122 [Bodo Moeller] 6123 6124 *) Changed the LHASH code to use prototypes for callbacks, and created 6125 macros to declare and implement thin (optionally static) functions 6126 that provide type-safety and avoid function pointer casting for the 6127 type-specific callbacks. 6128 [Geoff Thorpe] 6129 6130 *) Added Kerberos Cipher Suites to be used with TLS, as written in 6131 RFC 2712. 6132 [Veers Staats <staatsvr@asc.hpc.mil>, 6133 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte] 6134 6135 *) Reformat the FAQ so the different questions and answers can be divided 6136 in sections depending on the subject. 6137 [Richard Levitte] 6138 6139 *) Have the zlib compression code load ZLIB.DLL dynamically under 6140 Windows. 6141 [Richard Levitte] 6142 6143 *) New function BN_mod_sqrt for computing square roots modulo a prime 6144 (using the probabilistic Tonelli-Shanks algorithm unless 6145 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can 6146 be handled deterministically). 6147 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller] 6148 6149 *) Make BN_mod_inverse faster by explicitly handling small quotients 6150 in the Euclid loop. (Speed gain about 20% for small moduli [256 or 6151 512 bits], about 30% for larger ones [1024 or 2048 bits].) 6152 [Bodo Moeller] 6153 6154 *) New function BN_kronecker. 6155 [Bodo Moeller] 6156 6157 *) Fix BN_gcd so that it works on negative inputs; the result is 6158 positive unless both parameters are zero. 6159 Previously something reasonably close to an infinite loop was 6160 possible because numbers could be growing instead of shrinking 6161 in the implementation of Euclid's algorithm. 6162 [Bodo Moeller] 6163 6164 *) Fix BN_is_word() and BN_is_one() macros to take into account the 6165 sign of the number in question. 6166 6167 Fix BN_is_word(a,w) to work correctly for w == 0. 6168 6169 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w) 6170 because its test if the absolute value of 'a' equals 'w'. 6171 Note that BN_abs_is_word does *not* handle w == 0 reliably; 6172 it exists mostly for use in the implementations of BN_is_zero(), 6173 BN_is_one(), and BN_is_word(). 6174 [Bodo Moeller] 6175 6176 *) New function BN_swap. 6177 [Bodo Moeller] 6178 6179 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that 6180 the exponentiation functions are more likely to produce reasonable 6181 results on negative inputs. 6182 [Bodo Moeller] 6183 6184 *) Change BN_mod_mul so that the result is always non-negative. 6185 Previously, it could be negative if one of the factors was negative; 6186 I don't think anyone really wanted that behaviour. 6187 [Bodo Moeller] 6188 6189 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c 6190 (except for exponentiation, which stays in crypto/bn/bn_exp.c, 6191 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c) 6192 and add new functions: 6193 6194 BN_nnmod 6195 BN_mod_sqr 6196 BN_mod_add 6197 BN_mod_add_quick 6198 BN_mod_sub 6199 BN_mod_sub_quick 6200 BN_mod_lshift1 6201 BN_mod_lshift1_quick 6202 BN_mod_lshift 6203 BN_mod_lshift_quick 6204 6205 These functions always generate non-negative results. 6206 6207 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r 6208 such that |m| < r < 0, BN_nnmod will output rem + |m| instead). 6209 6210 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as 6211 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b] 6212 be reduced modulo m. 6213 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller] 6214 6215#if 0 6216 The following entry accidentily appeared in the CHANGES file 6217 distributed with OpenSSL 0.9.7. The modifications described in 6218 it do *not* apply to OpenSSL 0.9.7. 6219 6220 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there 6221 was actually never needed) and in BN_mul(). The removal in BN_mul() 6222 required a small change in bn_mul_part_recursive() and the addition 6223 of the functions bn_cmp_part_words(), bn_sub_part_words() and 6224 bn_add_part_words(), which do the same thing as bn_cmp_words(), 6225 bn_sub_words() and bn_add_words() except they take arrays with 6226 differing sizes. 6227 [Richard Levitte] 6228#endif 6229 6230 *) In 'openssl passwd', verify passwords read from the terminal 6231 unless the '-salt' option is used (which usually means that 6232 verification would just waste user's time since the resulting 6233 hash is going to be compared with some given password hash) 6234 or the new '-noverify' option is used. 6235 6236 This is an incompatible change, but it does not affect 6237 non-interactive use of 'openssl passwd' (passwords on the command 6238 line, '-stdin' option, '-in ...' option) and thus should not 6239 cause any problems. 6240 [Bodo Moeller] 6241 6242 *) Remove all references to RSAref, since there's no more need for it. 6243 [Richard Levitte] 6244 6245 *) Make DSO load along a path given through an environment variable 6246 (SHLIB_PATH) with shl_load(). 6247 [Richard Levitte] 6248 6249 *) Constify the ENGINE code as a result of BIGNUM constification. 6250 Also constify the RSA code and most things related to it. In a 6251 few places, most notable in the depth of the ASN.1 code, ugly 6252 casts back to non-const were required (to be solved at a later 6253 time) 6254 [Richard Levitte] 6255 6256 *) Make it so the openssl application has all engines loaded by default. 6257 [Richard Levitte] 6258 6259 *) Constify the BIGNUM routines a little more. 6260 [Richard Levitte] 6261 6262 *) Add the following functions: 6263 6264 ENGINE_load_cswift() 6265 ENGINE_load_chil() 6266 ENGINE_load_atalla() 6267 ENGINE_load_nuron() 6268 ENGINE_load_builtin_engines() 6269 6270 That way, an application can itself choose if external engines that 6271 are built-in in OpenSSL shall ever be used or not. The benefit is 6272 that applications won't have to be linked with libdl or other dso 6273 libraries unless it's really needed. 6274 6275 Changed 'openssl engine' to load all engines on demand. 6276 Changed the engine header files to avoid the duplication of some 6277 declarations (they differed!). 6278 [Richard Levitte] 6279 6280 *) 'openssl engine' can now list capabilities. 6281 [Richard Levitte] 6282 6283 *) Better error reporting in 'openssl engine'. 6284 [Richard Levitte] 6285 6286 *) Never call load_dh_param(NULL) in s_server. 6287 [Bodo Moeller] 6288 6289 *) Add engine application. It can currently list engines by name and 6290 identity, and test if they are actually available. 6291 [Richard Levitte] 6292 6293 *) Improve RPM specification file by forcing symbolic linking and making 6294 sure the installed documentation is also owned by root.root. 6295 [Damien Miller <djm@mindrot.org>] 6296 6297 *) Give the OpenSSL applications more possibilities to make use of 6298 keys (public as well as private) handled by engines. 6299 [Richard Levitte] 6300 6301 *) Add OCSP code that comes from CertCo. 6302 [Richard Levitte] 6303 6304 *) Add VMS support for the Rijndael code. 6305 [Richard Levitte] 6306 6307 *) Added untested support for Nuron crypto accelerator. 6308 [Ben Laurie] 6309 6310 *) Add support for external cryptographic devices. This code was 6311 previously distributed separately as the "engine" branch. 6312 [Geoff Thorpe, Richard Levitte] 6313 6314 *) Rework the filename-translation in the DSO code. It is now possible to 6315 have far greater control over how a "name" is turned into a filename 6316 depending on the operating environment and any oddities about the 6317 different shared library filenames on each system. 6318 [Geoff Thorpe] 6319 6320 *) Support threads on FreeBSD-elf in Configure. 6321 [Richard Levitte] 6322 6323 *) Fix for SHA1 assembly problem with MASM: it produces 6324 warnings about corrupt line number information when assembling 6325 with debugging information. This is caused by the overlapping 6326 of two sections. 6327 [Bernd Matthes <mainbug@celocom.de>, Steve Henson] 6328 6329 *) NCONF changes. 6330 NCONF_get_number() has no error checking at all. As a replacement, 6331 NCONF_get_number_e() is defined (_e for "error checking") and is 6332 promoted strongly. The old NCONF_get_number is kept around for 6333 binary backward compatibility. 6334 Make it possible for methods to load from something other than a BIO, 6335 by providing a function pointer that is given a name instead of a BIO. 6336 For example, this could be used to load configuration data from an 6337 LDAP server. 6338 [Richard Levitte] 6339 6340 *) Fix for non blocking accept BIOs. Added new I/O special reason 6341 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs 6342 with non blocking I/O was not possible because no retry code was 6343 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover 6344 this case. 6345 [Steve Henson] 6346 6347 *) Added the beginnings of Rijndael support. 6348 [Ben Laurie] 6349 6350 *) Fix for bug in DirectoryString mask setting. Add support for 6351 X509_NAME_print_ex() in 'req' and X509_print_ex() function 6352 to allow certificate printing to more controllable, additional 6353 'certopt' option to 'x509' to allow new printing options to be 6354 set. 6355 [Steve Henson] 6356 6357 *) Clean old EAY MD5 hack from e_os.h. 6358 [Richard Levitte] 6359 6360 Changes between 0.9.6l and 0.9.6m [17 Mar 2004] 6361 6362 *) Fix null-pointer assignment in do_change_cipher_spec() revealed 6363 by using the Codenomicon TLS Test Tool (CVE-2004-0079) 6364 [Joe Orton, Steve Henson] 6365 6366 Changes between 0.9.6k and 0.9.6l [04 Nov 2003] 6367 6368 *) Fix additional bug revealed by the NISCC test suite: 6369 6370 Stop bug triggering large recursion when presented with 6371 certain ASN.1 tags (CVE-2003-0851) 6372 [Steve Henson] 6373 6374 Changes between 0.9.6j and 0.9.6k [30 Sep 2003] 6375 6376 *) Fix various bugs revealed by running the NISCC test suite: 6377 6378 Stop out of bounds reads in the ASN1 code when presented with 6379 invalid tags (CVE-2003-0543 and CVE-2003-0544). 6380 6381 If verify callback ignores invalid public key errors don't try to check 6382 certificate signature with the NULL public key. 6383 6384 [Steve Henson] 6385 6386 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate 6387 if the server requested one: as stated in TLS 1.0 and SSL 3.0 6388 specifications. 6389 [Steve Henson] 6390 6391 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional 6392 extra data after the compression methods not only for TLS 1.0 6393 but also for SSL 3.0 (as required by the specification). 6394 [Bodo Moeller; problem pointed out by Matthias Loepfe] 6395 6396 *) Change X509_certificate_type() to mark the key as exported/exportable 6397 when it's 512 *bits* long, not 512 bytes. 6398 [Richard Levitte] 6399 6400 Changes between 0.9.6i and 0.9.6j [10 Apr 2003] 6401 6402 *) Countermeasure against the Klima-Pokorny-Rosa extension of 6403 Bleichbacher's attack on PKCS #1 v1.5 padding: treat 6404 a protocol version number mismatch like a decryption error 6405 in ssl3_get_client_key_exchange (ssl/s3_srvr.c). 6406 [Bodo Moeller] 6407 6408 *) Turn on RSA blinding by default in the default implementation 6409 to avoid a timing attack. Applications that don't want it can call 6410 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING. 6411 They would be ill-advised to do so in most cases. 6412 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller] 6413 6414 *) Change RSA blinding code so that it works when the PRNG is not 6415 seeded (in this case, the secret RSA exponent is abused as 6416 an unpredictable seed -- if it is not unpredictable, there 6417 is no point in blinding anyway). Make RSA blinding thread-safe 6418 by remembering the creator's thread ID in rsa->blinding and 6419 having all other threads use local one-time blinding factors 6420 (this requires more computation than sharing rsa->blinding, but 6421 avoids excessive locking; and if an RSA object is not shared 6422 between threads, blinding will still be very fast). 6423 [Bodo Moeller] 6424 6425 Changes between 0.9.6h and 0.9.6i [19 Feb 2003] 6426 6427 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked 6428 via timing by performing a MAC computation even if incorrrect 6429 block cipher padding has been found. This is a countermeasure 6430 against active attacks where the attacker has to distinguish 6431 between bad padding and a MAC verification error. (CVE-2003-0078) 6432 6433 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL), 6434 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and 6435 Martin Vuagnoux (EPFL, Ilion)] 6436 6437 Changes between 0.9.6g and 0.9.6h [5 Dec 2002] 6438 6439 *) New function OPENSSL_cleanse(), which is used to cleanse a section of 6440 memory from it's contents. This is done with a counter that will 6441 place alternating values in each byte. This can be used to solve 6442 two issues: 1) the removal of calls to memset() by highly optimizing 6443 compilers, and 2) cleansing with other values than 0, since those can 6444 be read through on certain media, for example a swap space on disk. 6445 [Geoff Thorpe] 6446 6447 *) Bugfix: client side session caching did not work with external caching, 6448 because the session->cipher setting was not restored when reloading 6449 from the external cache. This problem was masked, when 6450 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set. 6451 (Found by Steve Haslam <steve@araqnid.ddts.net>.) 6452 [Lutz Jaenicke] 6453 6454 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total 6455 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33. 6456 [Zeev Lieber <zeev-l@yahoo.com>] 6457 6458 *) Undo an undocumented change introduced in 0.9.6e which caused 6459 repeated calls to OpenSSL_add_all_ciphers() and 6460 OpenSSL_add_all_digests() to be ignored, even after calling 6461 EVP_cleanup(). 6462 [Richard Levitte] 6463 6464 *) Change the default configuration reader to deal with last line not 6465 being properly terminated. 6466 [Richard Levitte] 6467 6468 *) Change X509_NAME_cmp() so it applies the special rules on handling 6469 DN values that are of type PrintableString, as well as RDNs of type 6470 emailAddress where the value has the type ia5String. 6471 [stefank@valicert.com via Richard Levitte] 6472 6473 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half 6474 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently 6475 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be 6476 the bitwise-OR of the two for use by the majority of applications 6477 wanting this behaviour, and update the docs. The documented 6478 behaviour and actual behaviour were inconsistent and had been 6479 changing anyway, so this is more a bug-fix than a behavioural 6480 change. 6481 [Geoff Thorpe, diagnosed by Nadav Har'El] 6482 6483 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c 6484 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes). 6485 [Bodo Moeller] 6486 6487 *) Fix initialization code race conditions in 6488 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(), 6489 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(), 6490 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(), 6491 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(), 6492 ssl2_get_cipher_by_char(), 6493 ssl3_get_cipher_by_char(). 6494 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller] 6495 6496 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after 6497 the cached sessions are flushed, as the remove_cb() might use ex_data 6498 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com> 6499 (see [openssl.org #212]). 6500 [Geoff Thorpe, Lutz Jaenicke] 6501 6502 *) Fix typo in OBJ_txt2obj which incorrectly passed the content 6503 length, instead of the encoding length to d2i_ASN1_OBJECT. 6504 [Steve Henson] 6505 6506 Changes between 0.9.6f and 0.9.6g [9 Aug 2002] 6507 6508 *) [In 0.9.6g-engine release:] 6509 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall'). 6510 [Lynn Gazis <lgazis@rainbow.com>] 6511 6512 Changes between 0.9.6e and 0.9.6f [8 Aug 2002] 6513 6514 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX 6515 and get fix the header length calculation. 6516 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>, 6517 Alon Kantor <alonk@checkpoint.com> (and others), 6518 Steve Henson] 6519 6520 *) Use proper error handling instead of 'assertions' in buffer 6521 overflow checks added in 0.9.6e. This prevents DoS (the 6522 assertions could call abort()). 6523 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller] 6524 6525 Changes between 0.9.6d and 0.9.6e [30 Jul 2002] 6526 6527 *) Add various sanity checks to asn1_get_length() to reject 6528 the ASN1 length bytes if they exceed sizeof(long), will appear 6529 negative or the content length exceeds the length of the 6530 supplied buffer. 6531 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>] 6532 6533 *) Fix cipher selection routines: ciphers without encryption had no flags 6534 for the cipher strength set and where therefore not handled correctly 6535 by the selection routines (PR #130). 6536 [Lutz Jaenicke] 6537 6538 *) Fix EVP_dsa_sha macro. 6539 [Nils Larsch] 6540 6541 *) New option 6542 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS 6543 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure 6544 that was added in OpenSSL 0.9.6d. 6545 6546 As the countermeasure turned out to be incompatible with some 6547 broken SSL implementations, the new option is part of SSL_OP_ALL. 6548 SSL_OP_ALL is usually employed when compatibility with weird SSL 6549 implementations is desired (e.g. '-bugs' option to 's_client' and 6550 's_server'), so the new option is automatically set in many 6551 applications. 6552 [Bodo Moeller] 6553 6554 *) Changes in security patch: 6555 6556 Changes marked "(CHATS)" were sponsored by the Defense Advanced 6557 Research Projects Agency (DARPA) and Air Force Research Laboratory, 6558 Air Force Materiel Command, USAF, under agreement number 6559 F30602-01-2-0537. 6560 6561 *) Add various sanity checks to asn1_get_length() to reject 6562 the ASN1 length bytes if they exceed sizeof(long), will appear 6563 negative or the content length exceeds the length of the 6564 supplied buffer. (CVE-2002-0659) 6565 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>] 6566 6567 *) Assertions for various potential buffer overflows, not known to 6568 happen in practice. 6569 [Ben Laurie (CHATS)] 6570 6571 *) Various temporary buffers to hold ASCII versions of integers were 6572 too small for 64 bit platforms. (CVE-2002-0655) 6573 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)> 6574 6575 *) Remote buffer overflow in SSL3 protocol - an attacker could 6576 supply an oversized session ID to a client. (CVE-2002-0656) 6577 [Ben Laurie (CHATS)] 6578 6579 *) Remote buffer overflow in SSL2 protocol - an attacker could 6580 supply an oversized client master key. (CVE-2002-0656) 6581 [Ben Laurie (CHATS)] 6582 6583 Changes between 0.9.6c and 0.9.6d [9 May 2002] 6584 6585 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not 6586 encoded as NULL) with id-dsa-with-sha1. 6587 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller] 6588 6589 *) Check various X509_...() return values in apps/req.c. 6590 [Nils Larsch <nla@trustcenter.de>] 6591 6592 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines: 6593 an end-of-file condition would erronously be flagged, when the CRLF 6594 was just at the end of a processed block. The bug was discovered when 6595 processing data through a buffering memory BIO handing the data to a 6596 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov 6597 <ptsekov@syntrex.com> and Nedelcho Stanev. 6598 [Lutz Jaenicke] 6599 6600 *) Implement a countermeasure against a vulnerability recently found 6601 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment 6602 before application data chunks to avoid the use of known IVs 6603 with data potentially chosen by the attacker. 6604 [Bodo Moeller] 6605 6606 *) Fix length checks in ssl3_get_client_hello(). 6607 [Bodo Moeller] 6608 6609 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently 6610 to prevent ssl3_read_internal() from incorrectly assuming that 6611 ssl3_read_bytes() found application data while handshake 6612 processing was enabled when in fact s->s3->in_read_app_data was 6613 merely automatically cleared during the initial handshake. 6614 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>] 6615 6616 *) Fix object definitions for Private and Enterprise: they were not 6617 recognized in their shortname (=lowercase) representation. Extend 6618 obj_dat.pl to issue an error when using undefined keywords instead 6619 of silently ignoring the problem (Svenning Sorensen 6620 <sss@sss.dnsalias.net>). 6621 [Lutz Jaenicke] 6622 6623 *) Fix DH_generate_parameters() so that it works for 'non-standard' 6624 generators, i.e. generators other than 2 and 5. (Previously, the 6625 code did not properly initialise the 'add' and 'rem' values to 6626 BN_generate_prime().) 6627 6628 In the new general case, we do not insist that 'generator' is 6629 actually a primitive root: This requirement is rather pointless; 6630 a generator of the order-q subgroup is just as good, if not 6631 better. 6632 [Bodo Moeller] 6633 6634 *) Map new X509 verification errors to alerts. Discovered and submitted by 6635 Tom Wu <tom@arcot.com>. 6636 [Lutz Jaenicke] 6637 6638 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from 6639 returning non-zero before the data has been completely received 6640 when using non-blocking I/O. 6641 [Bodo Moeller; problem pointed out by John Hughes] 6642 6643 *) Some of the ciphers missed the strength entry (SSL_LOW etc). 6644 [Ben Laurie, Lutz Jaenicke] 6645 6646 *) Fix bug in SSL_clear(): bad sessions were not removed (found by 6647 Yoram Zahavi <YoramZ@gilian.com>). 6648 [Lutz Jaenicke] 6649 6650 *) Add information about CygWin 1.3 and on, and preserve proper 6651 configuration for the versions before that. 6652 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte] 6653 6654 *) Make removal from session cache (SSL_CTX_remove_session()) more robust: 6655 check whether we deal with a copy of a session and do not delete from 6656 the cache in this case. Problem reported by "Izhar Shoshani Levi" 6657 <izhar@checkpoint.com>. 6658 [Lutz Jaenicke] 6659 6660 *) Do not store session data into the internal session cache, if it 6661 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP 6662 flag is set). Proposed by Aslam <aslam@funk.com>. 6663 [Lutz Jaenicke] 6664 6665 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested 6666 value is 0. 6667 [Richard Levitte] 6668 6669 *) [In 0.9.6d-engine release:] 6670 Fix a crashbug and a logic bug in hwcrhk_load_pubkey(). 6671 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte] 6672 6673 *) Add the configuration target linux-s390x. 6674 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte] 6675 6676 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of 6677 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag 6678 variable as an indication that a ClientHello message has been 6679 received. As the flag value will be lost between multiple 6680 invocations of ssl3_accept when using non-blocking I/O, the 6681 function may not be aware that a handshake has actually taken 6682 place, thus preventing a new session from being added to the 6683 session cache. 6684 6685 To avoid this problem, we now set s->new_session to 2 instead of 6686 using a local variable. 6687 [Lutz Jaenicke, Bodo Moeller] 6688 6689 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c) 6690 if the SSL_R_LENGTH_MISMATCH error is detected. 6691 [Geoff Thorpe, Bodo Moeller] 6692 6693 *) New 'shared_ldflag' column in Configure platform table. 6694 [Richard Levitte] 6695 6696 *) Fix EVP_CIPHER_mode macro. 6697 ["Dan S. Camper" <dan@bti.net>] 6698 6699 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown 6700 type, we must throw them away by setting rr->length to 0. 6701 [D P Chang <dpc@qualys.com>] 6702 6703 Changes between 0.9.6b and 0.9.6c [21 dec 2001] 6704 6705 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl 6706 <Dominikus.Scherkl@biodata.com>. (The previous implementation 6707 worked incorrectly for those cases where range = 10..._2 and 6708 3*range is two bits longer than range.) 6709 [Bodo Moeller] 6710 6711 *) Only add signing time to PKCS7 structures if it is not already 6712 present. 6713 [Steve Henson] 6714 6715 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce", 6716 OBJ_ld_ce should be OBJ_id_ce. 6717 Also some ip-pda OIDs in crypto/objects/objects.txt were 6718 incorrect (cf. RFC 3039). 6719 [Matt Cooper, Frederic Giudicelli, Bodo Moeller] 6720 6721 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid() 6722 returns early because it has nothing to do. 6723 [Andy Schneider <andy.schneider@bjss.co.uk>] 6724 6725 *) [In 0.9.6c-engine release:] 6726 Fix mutex callback return values in crypto/engine/hw_ncipher.c. 6727 [Andy Schneider <andy.schneider@bjss.co.uk>] 6728 6729 *) [In 0.9.6c-engine release:] 6730 Add support for Cryptographic Appliance's keyserver technology. 6731 (Use engine 'keyclient') 6732 [Cryptographic Appliances and Geoff Thorpe] 6733 6734 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89' 6735 is called via tools/c89.sh because arguments have to be 6736 rearranged (all '-L' options must appear before the first object 6737 modules). 6738 [Richard Shapiro <rshapiro@abinitio.com>] 6739 6740 *) [In 0.9.6c-engine release:] 6741 Add support for Broadcom crypto accelerator cards, backported 6742 from 0.9.7. 6743 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox] 6744 6745 *) [In 0.9.6c-engine release:] 6746 Add support for SureWare crypto accelerator cards from 6747 Baltimore Technologies. (Use engine 'sureware') 6748 [Baltimore Technologies and Mark Cox] 6749 6750 *) [In 0.9.6c-engine release:] 6751 Add support for crypto accelerator cards from Accelerated 6752 Encryption Processing, www.aep.ie. (Use engine 'aep') 6753 [AEP Inc. and Mark Cox] 6754 6755 *) Add a configuration entry for gcc on UnixWare. 6756 [Gary Benson <gbenson@redhat.com>] 6757 6758 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake 6759 messages are stored in a single piece (fixed-length part and 6760 variable-length part combined) and fix various bugs found on the way. 6761 [Bodo Moeller] 6762 6763 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname() 6764 instead. BIO_gethostbyname() does not know what timeouts are 6765 appropriate, so entries would stay in cache even when they have 6766 become invalid. 6767 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com> 6768 6769 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when 6770 faced with a pathologically small ClientHello fragment that does 6771 not contain client_version: Instead of aborting with an error, 6772 simply choose the highest available protocol version (i.e., 6773 TLS 1.0 unless it is disabled). In practice, ClientHello 6774 messages are never sent like this, but this change gives us 6775 strictly correct behaviour at least for TLS. 6776 [Bodo Moeller] 6777 6778 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear() 6779 never resets s->method to s->ctx->method when called from within 6780 one of the SSL handshake functions. 6781 [Bodo Moeller; problem pointed out by Niko Baric] 6782 6783 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert 6784 (sent using the client's version number) if client_version is 6785 smaller than the protocol version in use. Also change 6786 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if 6787 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then 6788 the client will at least see that alert. 6789 [Bodo Moeller] 6790 6791 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation 6792 correctly. 6793 [Bodo Moeller] 6794 6795 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a 6796 client receives HelloRequest while in a handshake. 6797 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>] 6798 6799 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C 6800 should end in 'break', not 'goto end' which circuments various 6801 cleanups done in state SSL_ST_OK. But session related stuff 6802 must be disabled for SSL_ST_OK in the case that we just sent a 6803 HelloRequest. 6804 6805 Also avoid some overhead by not calling ssl_init_wbio_buffer() 6806 before just sending a HelloRequest. 6807 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>] 6808 6809 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't 6810 reveal whether illegal block cipher padding was found or a MAC 6811 verification error occured. (Neither SSLerr() codes nor alerts 6812 are directly visible to potential attackers, but the information 6813 may leak via logfiles.) 6814 6815 Similar changes are not required for the SSL 2.0 implementation 6816 because the number of padding bytes is sent in clear for SSL 2.0, 6817 and the extra bytes are just ignored. However ssl/s2_pkt.c 6818 failed to verify that the purported number of padding bytes is in 6819 the legal range. 6820 [Bodo Moeller] 6821 6822 *) Add OpenUNIX-8 support including shared libraries 6823 (Boyd Lynn Gerber <gerberb@zenez.com>). 6824 [Lutz Jaenicke] 6825 6826 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid 6827 'wristwatch attack' using huge encoding parameters (cf. 6828 James H. Manger's CRYPTO 2001 paper). Note that the 6829 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use 6830 encoding parameters and hence was not vulnerable. 6831 [Bodo Moeller] 6832 6833 *) BN_sqr() bug fix. 6834 [Ulf M�ller, reported by Jim Ellis <jim.ellis@cavium.com>] 6835 6836 *) Rabin-Miller test analyses assume uniformly distributed witnesses, 6837 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand() 6838 followed by modular reduction. 6839 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>] 6840 6841 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range() 6842 equivalent based on BN_pseudo_rand() instead of BN_rand(). 6843 [Bodo Moeller] 6844 6845 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB). 6846 This function was broken, as the check for a new client hello message 6847 to handle SGC did not allow these large messages. 6848 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.) 6849 [Lutz Jaenicke] 6850 6851 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long](). 6852 [Lutz Jaenicke] 6853 6854 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl() 6855 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>). 6856 [Lutz Jaenicke] 6857 6858 *) Rework the configuration and shared library support for Tru64 Unix. 6859 The configuration part makes use of modern compiler features and 6860 still retains old compiler behavior for those that run older versions 6861 of the OS. The shared library support part includes a variant that 6862 uses the RPATH feature, and is available through the special 6863 configuration target "alpha-cc-rpath", which will never be selected 6864 automatically. 6865 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte] 6866 6867 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message() 6868 with the same message size as in ssl3_get_certificate_request(). 6869 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest 6870 messages might inadvertently be reject as too long. 6871 [Petr Lampa <lampa@fee.vutbr.cz>] 6872 6873 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX). 6874 [Andy Polyakov] 6875 6876 *) Modified SSL library such that the verify_callback that has been set 6877 specificly for an SSL object with SSL_set_verify() is actually being 6878 used. Before the change, a verify_callback set with this function was 6879 ignored and the verify_callback() set in the SSL_CTX at the time of 6880 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced 6881 to allow the necessary settings. 6882 [Lutz Jaenicke] 6883 6884 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c 6885 explicitly to NULL, as at least on Solaris 8 this seems not always to be 6886 done automatically (in contradiction to the requirements of the C 6887 standard). This made problems when used from OpenSSH. 6888 [Lutz Jaenicke] 6889 6890 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored 6891 dh->length and always used 6892 6893 BN_rand_range(priv_key, dh->p). 6894 6895 BN_rand_range() is not necessary for Diffie-Hellman, and this 6896 specific range makes Diffie-Hellman unnecessarily inefficient if 6897 dh->length (recommended exponent length) is much smaller than the 6898 length of dh->p. We could use BN_rand_range() if the order of 6899 the subgroup was stored in the DH structure, but we only have 6900 dh->length. 6901 6902 So switch back to 6903 6904 BN_rand(priv_key, l, ...) 6905 6906 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1 6907 otherwise. 6908 [Bodo Moeller] 6909 6910 *) In 6911 6912 RSA_eay_public_encrypt 6913 RSA_eay_private_decrypt 6914 RSA_eay_private_encrypt (signing) 6915 RSA_eay_public_decrypt (signature verification) 6916 6917 (default implementations for RSA_public_encrypt, 6918 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt), 6919 always reject numbers >= n. 6920 [Bodo Moeller] 6921 6922 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2 6923 to synchronize access to 'locking_thread'. This is necessary on 6924 systems where access to 'locking_thread' (an 'unsigned long' 6925 variable) is not atomic. 6926 [Bodo Moeller] 6927 6928 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID 6929 *before* setting the 'crypto_lock_rand' flag. The previous code had 6930 a race condition if 0 is a valid thread ID. 6931 [Travis Vitek <vitek@roguewave.com>] 6932 6933 *) Add support for shared libraries under Irix. 6934 [Albert Chin-A-Young <china@thewrittenword.com>] 6935 6936 *) Add configuration option to build on Linux on both big-endian and 6937 little-endian MIPS. 6938 [Ralf Baechle <ralf@uni-koblenz.de>] 6939 6940 *) Add the possibility to create shared libraries on HP-UX. 6941 [Richard Levitte] 6942 6943 Changes between 0.9.6a and 0.9.6b [9 Jul 2001] 6944 6945 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c) 6946 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by 6947 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>: 6948 PRNG state recovery was possible based on the output of 6949 one PRNG request appropriately sized to gain knowledge on 6950 'md' followed by enough consecutive 1-byte PRNG requests 6951 to traverse all of 'state'. 6952 6953 1. When updating 'md_local' (the current thread's copy of 'md') 6954 during PRNG output generation, hash all of the previous 6955 'md_local' value, not just the half used for PRNG output. 6956 6957 2. Make the number of bytes from 'state' included into the hash 6958 independent from the number of PRNG bytes requested. 6959 6960 The first measure alone would be sufficient to avoid 6961 Markku-Juhani's attack. (Actually it had never occurred 6962 to me that the half of 'md_local' used for chaining was the 6963 half from which PRNG output bytes were taken -- I had always 6964 assumed that the secret half would be used.) The second 6965 measure makes sure that additional data from 'state' is never 6966 mixed into 'md_local' in small portions; this heuristically 6967 further strengthens the PRNG. 6968 [Bodo Moeller] 6969 6970 *) Fix crypto/bn/asm/mips3.s. 6971 [Andy Polyakov] 6972 6973 *) When only the key is given to "enc", the IV is undefined. Print out 6974 an error message in this case. 6975 [Lutz Jaenicke] 6976 6977 *) Handle special case when X509_NAME is empty in X509 printing routines. 6978 [Steve Henson] 6979 6980 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are 6981 positive and less than q. 6982 [Bodo Moeller] 6983 6984 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is 6985 used: it isn't thread safe and the add_lock_callback should handle 6986 that itself. 6987 [Paul Rose <Paul.Rose@bridge.com>] 6988 6989 *) Verify that incoming data obeys the block size in 6990 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c). 6991 [Bodo Moeller] 6992 6993 *) Fix OAEP check. 6994 [Ulf M�ller, Bodo M�ller] 6995 6996 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5 6997 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5 6998 when fixing the server behaviour for backwards-compatible 'client 6999 hello' messages. (Note that the attack is impractical against 7000 SSL 3.0 and TLS 1.0 anyway because length and version checking 7001 means that the probability of guessing a valid ciphertext is 7002 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98 7003 paper.) 7004 7005 Before 0.9.5, the countermeasure (hide the error by generating a 7006 random 'decryption result') did not work properly because 7007 ERR_clear_error() was missing, meaning that SSL_get_error() would 7008 detect the supposedly ignored error. 7009 7010 Both problems are now fixed. 7011 [Bodo Moeller] 7012 7013 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096 7014 (previously it was 1024). 7015 [Bodo Moeller] 7016 7017 *) Fix for compatibility mode trust settings: ignore trust settings 7018 unless some valid trust or reject settings are present. 7019 [Steve Henson] 7020 7021 *) Fix for blowfish EVP: its a variable length cipher. 7022 [Steve Henson] 7023 7024 *) Fix various bugs related to DSA S/MIME verification. Handle missing 7025 parameters in DSA public key structures and return an error in the 7026 DSA routines if parameters are absent. 7027 [Steve Henson] 7028 7029 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd" 7030 in the current directory if neither $RANDFILE nor $HOME was set. 7031 RAND_file_name() in 0.9.6a returned NULL in this case. This has 7032 caused some confusion to Windows users who haven't defined $HOME. 7033 Thus RAND_file_name() is changed again: e_os.h can define a 7034 DEFAULT_HOME, which will be used if $HOME is not set. 7035 For Windows, we use "C:"; on other platforms, we still require 7036 environment variables. 7037 7038 *) Move 'if (!initialized) RAND_poll()' into regions protected by 7039 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids 7040 having multiple threads call RAND_poll() concurrently. 7041 [Bodo Moeller] 7042 7043 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a 7044 combination of a flag and a thread ID variable. 7045 Otherwise while one thread is in ssleay_rand_bytes (which sets the 7046 flag), *other* threads can enter ssleay_add_bytes without obeying 7047 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock 7048 that they do not hold after the first thread unsets add_do_not_lock). 7049 [Bodo Moeller] 7050 7051 *) Change bctest again: '-x' expressions are not available in all 7052 versions of 'test'. 7053 [Bodo Moeller] 7054 7055 Changes between 0.9.6 and 0.9.6a [5 Apr 2001] 7056 7057 *) Fix a couple of memory leaks in PKCS7_dataDecode() 7058 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>] 7059 7060 *) Change Configure and Makefiles to provide EXE_EXT, which will contain 7061 the default extension for executables, if any. Also, make the perl 7062 scripts that use symlink() to test if it really exists and use "cp" 7063 if it doesn't. All this made OpenSSL compilable and installable in 7064 CygWin. 7065 [Richard Levitte] 7066 7067 *) Fix for asn1_GetSequence() for indefinite length constructed data. 7068 If SEQUENCE is length is indefinite just set c->slen to the total 7069 amount of data available. 7070 [Steve Henson, reported by shige@FreeBSD.org] 7071 [This change does not apply to 0.9.7.] 7072 7073 *) Change bctest to avoid here-documents inside command substitution 7074 (workaround for FreeBSD /bin/sh bug). 7075 For compatibility with Ultrix, avoid shell functions (introduced 7076 in the bctest version that searches along $PATH). 7077 [Bodo Moeller] 7078 7079 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes 7080 with des_encrypt() defined on some operating systems, like Solaris 7081 and UnixWare. 7082 [Richard Levitte] 7083 7084 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton: 7085 On the Importance of Eliminating Errors in Cryptographic 7086 Computations, J. Cryptology 14 (2001) 2, 101-119, 7087 http://theory.stanford.edu/~dabo/papers/faults.ps.gz). 7088 [Ulf Moeller] 7089 7090 *) MIPS assembler BIGNUM division bug fix. 7091 [Andy Polyakov] 7092 7093 *) Disabled incorrect Alpha assembler code. 7094 [Richard Levitte] 7095 7096 *) Fix PKCS#7 decode routines so they correctly update the length 7097 after reading an EOC for the EXPLICIT tag. 7098 [Steve Henson] 7099 [This change does not apply to 0.9.7.] 7100 7101 *) Fix bug in PKCS#12 key generation routines. This was triggered 7102 if a 3DES key was generated with a 0 initial byte. Include 7103 PKCS12_BROKEN_KEYGEN compilation option to retain the old 7104 (but broken) behaviour. 7105 [Steve Henson] 7106 7107 *) Enhance bctest to search for a working bc along $PATH and print 7108 it when found. 7109 [Tim Rice <tim@multitalents.net> via Richard Levitte] 7110 7111 *) Fix memory leaks in err.c: free err_data string if necessary; 7112 don't write to the wrong index in ERR_set_error_data. 7113 [Bodo Moeller] 7114 7115 *) Implement ssl23_peek (analogous to ssl23_read), which previously 7116 did not exist. 7117 [Bodo Moeller] 7118 7119 *) Replace rdtsc with _emit statements for VC++ version 5. 7120 [Jeremy Cooper <jeremy@baymoo.org>] 7121 7122 *) Make it possible to reuse SSLv2 sessions. 7123 [Richard Levitte] 7124 7125 *) In copy_email() check for >= 0 as a return value for 7126 X509_NAME_get_index_by_NID() since 0 is a valid index. 7127 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>] 7128 7129 *) Avoid coredump with unsupported or invalid public keys by checking if 7130 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when 7131 PKCS7_verify() fails with non detached data. 7132 [Steve Henson] 7133 7134 *) Don't use getenv in library functions when run as setuid/setgid. 7135 New function OPENSSL_issetugid(). 7136 [Ulf Moeller] 7137 7138 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c) 7139 due to incorrect handling of multi-threading: 7140 7141 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl(). 7142 7143 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on(). 7144 7145 3. Count how many times MemCheck_off() has been called so that 7146 nested use can be treated correctly. This also avoids 7147 inband-signalling in the previous code (which relied on the 7148 assumption that thread ID 0 is impossible). 7149 [Bodo Moeller] 7150 7151 *) Add "-rand" option also to s_client and s_server. 7152 [Lutz Jaenicke] 7153 7154 *) Fix CPU detection on Irix 6.x. 7155 [Kurt Hockenbury <khockenb@stevens-tech.edu> and 7156 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>] 7157 7158 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME 7159 was empty. 7160 [Steve Henson] 7161 [This change does not apply to 0.9.7.] 7162 7163 *) Use the cached encoding of an X509_NAME structure rather than 7164 copying it. This is apparently the reason for the libsafe "errors" 7165 but the code is actually correct. 7166 [Steve Henson] 7167 7168 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent 7169 Bleichenbacher's DSA attack. 7170 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits 7171 to be set and top=0 forces the highest bit to be set; top=-1 is new 7172 and leaves the highest bit random. 7173 [Ulf Moeller, Bodo Moeller] 7174 7175 *) In the NCONF_...-based implementations for CONF_... queries 7176 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using 7177 a temporary CONF structure with the data component set to NULL 7178 (which gives segmentation faults in lh_retrieve). 7179 Instead, use NULL for the CONF pointer in CONF_get_string and 7180 CONF_get_number (which may use environment variables) and directly 7181 return NULL from CONF_get_section. 7182 [Bodo Moeller] 7183 7184 *) Fix potential buffer overrun for EBCDIC. 7185 [Ulf Moeller] 7186 7187 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign 7188 keyUsage if basicConstraints absent for a CA. 7189 [Steve Henson] 7190 7191 *) Make SMIME_write_PKCS7() write mail header values with a format that 7192 is more generally accepted (no spaces before the semicolon), since 7193 some programs can't parse those values properly otherwise. Also make 7194 sure BIO's that break lines after each write do not create invalid 7195 headers. 7196 [Richard Levitte] 7197 7198 *) Make the CRL encoding routines work with empty SEQUENCE OF. The 7199 macros previously used would not encode an empty SEQUENCE OF 7200 and break the signature. 7201 [Steve Henson] 7202 [This change does not apply to 0.9.7.] 7203 7204 *) Zero the premaster secret after deriving the master secret in 7205 DH ciphersuites. 7206 [Steve Henson] 7207 7208 *) Add some EVP_add_digest_alias registrations (as found in 7209 OpenSSL_add_all_digests()) to SSL_library_init() 7210 aka OpenSSL_add_ssl_algorithms(). This provides improved 7211 compatibility with peers using X.509 certificates 7212 with unconventional AlgorithmIdentifier OIDs. 7213 [Bodo Moeller] 7214 7215 *) Fix for Irix with NO_ASM. 7216 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>] 7217 7218 *) ./config script fixes. 7219 [Ulf Moeller, Richard Levitte] 7220 7221 *) Fix 'openssl passwd -1'. 7222 [Bodo Moeller] 7223 7224 *) Change PKCS12_key_gen_asc() so it can cope with non null 7225 terminated strings whose length is passed in the passlen 7226 parameter, for example from PEM callbacks. This was done 7227 by adding an extra length parameter to asc2uni(). 7228 [Steve Henson, reported by <oddissey@samsung.co.kr>] 7229 7230 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn 7231 call failed, free the DSA structure. 7232 [Bodo Moeller] 7233 7234 *) Fix to uni2asc() to cope with zero length Unicode strings. 7235 These are present in some PKCS#12 files. 7236 [Steve Henson] 7237 7238 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c). 7239 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits 7240 when writing a 32767 byte record. 7241 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>] 7242 7243 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c), 7244 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}. 7245 7246 (RSA objects have a reference count access to which is protected 7247 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c], 7248 so they are meant to be shared between threads.) 7249 [Bodo Moeller, Geoff Thorpe; original patch submitted by 7250 "Reddie, Steven" <Steven.Reddie@ca.com>] 7251 7252 *) Fix a deadlock in CRYPTO_mem_leaks(). 7253 [Bodo Moeller] 7254 7255 *) Use better test patterns in bntest. 7256 [Ulf M�ller] 7257 7258 *) rand_win.c fix for Borland C. 7259 [Ulf M�ller] 7260 7261 *) BN_rshift bugfix for n == 0. 7262 [Bodo Moeller] 7263 7264 *) Add a 'bctest' script that checks for some known 'bc' bugs 7265 so that 'make test' does not abort just because 'bc' is broken. 7266 [Bodo Moeller] 7267 7268 *) Store verify_result within SSL_SESSION also for client side to 7269 avoid potential security hole. (Re-used sessions on the client side 7270 always resulted in verify_result==X509_V_OK, not using the original 7271 result of the server certificate verification.) 7272 [Lutz Jaenicke] 7273 7274 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type 7275 SSL3_RT_APPLICATION_DATA, return 0. 7276 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true. 7277 [Bodo Moeller] 7278 7279 *) Fix SSL_peek: 7280 Both ssl2_peek and ssl3_peek, which were totally broken in earlier 7281 releases, have been re-implemented by renaming the previous 7282 implementations of ssl2_read and ssl3_read to ssl2_read_internal 7283 and ssl3_read_internal, respectively, and adding 'peek' parameters 7284 to them. The new ssl[23]_{read,peek} functions are calls to 7285 ssl[23]_read_internal with the 'peek' flag set appropriately. 7286 A 'peek' parameter has also been added to ssl3_read_bytes, which 7287 does the actual work for ssl3_read_internal. 7288 [Bodo Moeller] 7289 7290 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling 7291 the method-specific "init()" handler. Also clean up ex_data after 7292 calling the method-specific "finish()" handler. Previously, this was 7293 happening the other way round. 7294 [Geoff Thorpe] 7295 7296 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16. 7297 The previous value, 12, was not always sufficient for BN_mod_exp(). 7298 [Bodo Moeller] 7299 7300 *) Make sure that shared libraries get the internal name engine with 7301 the full version number and not just 0. This should mark the 7302 shared libraries as not backward compatible. Of course, this should 7303 be changed again when we can guarantee backward binary compatibility. 7304 [Richard Levitte] 7305 7306 *) Fix typo in get_cert_by_subject() in by_dir.c 7307 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>] 7308 7309 *) Rework the system to generate shared libraries: 7310 7311 - Make note of the expected extension for the shared libraries and 7312 if there is a need for symbolic links from for example libcrypto.so.0 7313 to libcrypto.so.0.9.7. There is extended info in Configure for 7314 that. 7315 7316 - Make as few rebuilds of the shared libraries as possible. 7317 7318 - Still avoid linking the OpenSSL programs with the shared libraries. 7319 7320 - When installing, install the shared libraries separately from the 7321 static ones. 7322 [Richard Levitte] 7323 7324 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument. 7325 7326 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new 7327 and not in SSL_clear because the latter is also used by the 7328 accept/connect functions; previously, the settings made by 7329 SSL_set_read_ahead would be lost during the handshake. 7330 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>] 7331 7332 *) Correct util/mkdef.pl to be selective about disabled algorithms. 7333 Previously, it would create entries for disableed algorithms no 7334 matter what. 7335 [Richard Levitte] 7336 7337 *) Added several new manual pages for SSL_* function. 7338 [Lutz Jaenicke] 7339 7340 Changes between 0.9.5a and 0.9.6 [24 Sep 2000] 7341 7342 *) In ssl23_get_client_hello, generate an error message when faced 7343 with an initial SSL 3.0/TLS record that is too small to contain the 7344 first two bytes of the ClientHello message, i.e. client_version. 7345 (Note that this is a pathologic case that probably has never happened 7346 in real life.) The previous approach was to use the version number 7347 from the record header as a substitute; but our protocol choice 7348 should not depend on that one because it is not authenticated 7349 by the Finished messages. 7350 [Bodo Moeller] 7351 7352 *) More robust randomness gathering functions for Windows. 7353 [Jeffrey Altman <jaltman@columbia.edu>] 7354 7355 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is 7356 not set then we don't setup the error code for issuer check errors 7357 to avoid possibly overwriting other errors which the callback does 7358 handle. If an application does set the flag then we assume it knows 7359 what it is doing and can handle the new informational codes 7360 appropriately. 7361 [Steve Henson] 7362 7363 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for 7364 a general "ANY" type, as such it should be able to decode anything 7365 including tagged types. However it didn't check the class so it would 7366 wrongly interpret tagged types in the same way as their universal 7367 counterpart and unknown types were just rejected. Changed so that the 7368 tagged and unknown types are handled in the same way as a SEQUENCE: 7369 that is the encoding is stored intact. There is also a new type 7370 "V_ASN1_OTHER" which is used when the class is not universal, in this 7371 case we have no idea what the actual type is so we just lump them all 7372 together. 7373 [Steve Henson] 7374 7375 *) On VMS, stdout may very well lead to a file that is written to 7376 in a record-oriented fashion. That means that every write() will 7377 write a separate record, which will be read separately by the 7378 programs trying to read from it. This can be very confusing. 7379 7380 The solution is to put a BIO filter in the way that will buffer 7381 text until a linefeed is reached, and then write everything a 7382 line at a time, so every record written will be an actual line, 7383 not chunks of lines and not (usually doesn't happen, but I've 7384 seen it once) several lines in one record. BIO_f_linebuffer() is 7385 the answer. 7386 7387 Currently, it's a VMS-only method, because that's where it has 7388 been tested well enough. 7389 [Richard Levitte] 7390 7391 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery, 7392 it can return incorrect results. 7393 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a, 7394 but it was in 0.9.6-beta[12].) 7395 [Bodo Moeller] 7396 7397 *) Disable the check for content being present when verifying detached 7398 signatures in pk7_smime.c. Some versions of Netscape (wrongly) 7399 include zero length content when signing messages. 7400 [Steve Henson] 7401 7402 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR 7403 BIO_ctrl (for BIO pairs). 7404 [Bodo M�ller] 7405 7406 *) Add DSO method for VMS. 7407 [Richard Levitte] 7408 7409 *) Bug fix: Montgomery multiplication could produce results with the 7410 wrong sign. 7411 [Ulf M�ller] 7412 7413 *) Add RPM specification openssl.spec and modify it to build three 7414 packages. The default package contains applications, application 7415 documentation and run-time libraries. The devel package contains 7416 include files, static libraries and function documentation. The 7417 doc package contains the contents of the doc directory. The original 7418 openssl.spec was provided by Damien Miller <djm@mindrot.org>. 7419 [Richard Levitte] 7420 7421 *) Add a large number of documentation files for many SSL routines. 7422 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>] 7423 7424 *) Add a configuration entry for Sony News 4. 7425 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>] 7426 7427 *) Don't set the two most significant bits to one when generating a 7428 random number < q in the DSA library. 7429 [Ulf M�ller] 7430 7431 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default 7432 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if 7433 the underlying transport is blocking) if a handshake took place. 7434 (The default behaviour is needed by applications such as s_client 7435 and s_server that use select() to determine when to use SSL_read; 7436 but for applications that know in advance when to expect data, it 7437 just makes things more complicated.) 7438 [Bodo Moeller] 7439 7440 *) Add RAND_egd_bytes(), which gives control over the number of bytes read 7441 from EGD. 7442 [Ben Laurie] 7443 7444 *) Add a few more EBCDIC conditionals that make `req' and `x509' 7445 work better on such systems. 7446 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] 7447 7448 *) Add two demo programs for PKCS12_parse() and PKCS12_create(). 7449 Update PKCS12_parse() so it copies the friendlyName and the 7450 keyid to the certificates aux info. 7451 [Steve Henson] 7452 7453 *) Fix bug in PKCS7_verify() which caused an infinite loop 7454 if there was more than one signature. 7455 [Sven Uszpelkat <su@celocom.de>] 7456 7457 *) Major change in util/mkdef.pl to include extra information 7458 about each symbol, as well as presentig variables as well 7459 as functions. This change means that there's n more need 7460 to rebuild the .num files when some algorithms are excluded. 7461 [Richard Levitte] 7462 7463 *) Allow the verify time to be set by an application, 7464 rather than always using the current time. 7465 [Steve Henson] 7466 7467 *) Phase 2 verify code reorganisation. The certificate 7468 verify code now looks up an issuer certificate by a 7469 number of criteria: subject name, authority key id 7470 and key usage. It also verifies self signed certificates 7471 by the same criteria. The main comparison function is 7472 X509_check_issued() which performs these checks. 7473 7474 Lot of changes were necessary in order to support this 7475 without completely rewriting the lookup code. 7476 7477 Authority and subject key identifier are now cached. 7478 7479 The LHASH 'certs' is X509_STORE has now been replaced 7480 by a STACK_OF(X509_OBJECT). This is mainly because an 7481 LHASH can't store or retrieve multiple objects with 7482 the same hash value. 7483 7484 As a result various functions (which were all internal 7485 use only) have changed to handle the new X509_STORE 7486 structure. This will break anything that messed round 7487 with X509_STORE internally. 7488 7489 The functions X509_STORE_add_cert() now checks for an 7490 exact match, rather than just subject name. 7491 7492 The X509_STORE API doesn't directly support the retrieval 7493 of multiple certificates matching a given criteria, however 7494 this can be worked round by performing a lookup first 7495 (which will fill the cache with candidate certificates) 7496 and then examining the cache for matches. This is probably 7497 the best we can do without throwing out X509_LOOKUP 7498 entirely (maybe later...). 7499 7500 The X509_VERIFY_CTX structure has been enhanced considerably. 7501 7502 All certificate lookup operations now go via a get_issuer() 7503 callback. Although this currently uses an X509_STORE it 7504 can be replaced by custom lookups. This is a simple way 7505 to bypass the X509_STORE hackery necessary to make this 7506 work and makes it possible to use more efficient techniques 7507 in future. A very simple version which uses a simple 7508 STACK for its trusted certificate store is also provided 7509 using X509_STORE_CTX_trusted_stack(). 7510 7511 The verify_cb() and verify() callbacks now have equivalents 7512 in the X509_STORE_CTX structure. 7513 7514 X509_STORE_CTX also has a 'flags' field which can be used 7515 to customise the verify behaviour. 7516 [Steve Henson] 7517 7518 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which 7519 excludes S/MIME capabilities. 7520 [Steve Henson] 7521 7522 *) When a certificate request is read in keep a copy of the 7523 original encoding of the signed data and use it when outputing 7524 again. Signatures then use the original encoding rather than 7525 a decoded, encoded version which may cause problems if the 7526 request is improperly encoded. 7527 [Steve Henson] 7528 7529 *) For consistency with other BIO_puts implementations, call 7530 buffer_write(b, ...) directly in buffer_puts instead of calling 7531 BIO_write(b, ...). 7532 7533 In BIO_puts, increment b->num_write as in BIO_write. 7534 [Peter.Sylvester@EdelWeb.fr] 7535 7536 *) Fix BN_mul_word for the case where the word is 0. (We have to use 7537 BN_zero, we may not return a BIGNUM with an array consisting of 7538 words set to zero.) 7539 [Bodo Moeller] 7540 7541 *) Avoid calling abort() from within the library when problems are 7542 detected, except if preprocessor symbols have been defined 7543 (such as REF_CHECK, BN_DEBUG etc.). 7544 [Bodo Moeller] 7545 7546 *) New openssl application 'rsautl'. This utility can be 7547 used for low level RSA operations. DER public key 7548 BIO/fp routines also added. 7549 [Steve Henson] 7550 7551 *) New Configure entry and patches for compiling on QNX 4. 7552 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>] 7553 7554 *) A demo state-machine implementation was sponsored by 7555 Nuron (http://www.nuron.com/) and is now available in 7556 demos/state_machine. 7557 [Ben Laurie] 7558 7559 *) New options added to the 'dgst' utility for signature 7560 generation and verification. 7561 [Steve Henson] 7562 7563 *) Unrecognized PKCS#7 content types are now handled via a 7564 catch all ASN1_TYPE structure. This allows unsupported 7565 types to be stored as a "blob" and an application can 7566 encode and decode it manually. 7567 [Steve Henson] 7568 7569 *) Fix various signed/unsigned issues to make a_strex.c 7570 compile under VC++. 7571 [Oscar Jacobsson <oscar.jacobsson@celocom.com>] 7572 7573 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct 7574 length if passed a buffer. ASN1_INTEGER_to_BN failed 7575 if passed a NULL BN and its argument was negative. 7576 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>] 7577 7578 *) Modification to PKCS#7 encoding routines to output definite 7579 length encoding. Since currently the whole structures are in 7580 memory there's not real point in using indefinite length 7581 constructed encoding. However if OpenSSL is compiled with 7582 the flag PKCS7_INDEFINITE_ENCODING the old form is used. 7583 [Steve Henson] 7584 7585 *) Added BIO_vprintf() and BIO_vsnprintf(). 7586 [Richard Levitte] 7587 7588 *) Added more prefixes to parse for in the the strings written 7589 through a logging bio, to cover all the levels that are available 7590 through syslog. The prefixes are now: 7591 7592 PANIC, EMERG, EMR => LOG_EMERG 7593 ALERT, ALR => LOG_ALERT 7594 CRIT, CRI => LOG_CRIT 7595 ERROR, ERR => LOG_ERR 7596 WARNING, WARN, WAR => LOG_WARNING 7597 NOTICE, NOTE, NOT => LOG_NOTICE 7598 INFO, INF => LOG_INFO 7599 DEBUG, DBG => LOG_DEBUG 7600 7601 and as before, if none of those prefixes are present at the 7602 beginning of the string, LOG_ERR is chosen. 7603 7604 On Win32, the LOG_* levels are mapped according to this: 7605 7606 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE 7607 LOG_WARNING => EVENTLOG_WARNING_TYPE 7608 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE 7609 7610 [Richard Levitte] 7611 7612 *) Made it possible to reconfigure with just the configuration 7613 argument "reconf" or "reconfigure". The command line arguments 7614 are stored in Makefile.ssl in the variable CONFIGURE_ARGS, 7615 and are retrieved from there when reconfiguring. 7616 [Richard Levitte] 7617 7618 *) MD4 implemented. 7619 [Assar Westerlund <assar@sics.se>, Richard Levitte] 7620 7621 *) Add the arguments -CAfile and -CApath to the pkcs12 utility. 7622 [Richard Levitte] 7623 7624 *) The obj_dat.pl script was messing up the sorting of object 7625 names. The reason was that it compared the quoted version 7626 of strings as a result "OCSP" > "OCSP Signing" because 7627 " > SPACE. Changed script to store unquoted versions of 7628 names and add quotes on output. It was also omitting some 7629 names from the lookup table if they were given a default 7630 value (that is if SN is missing it is given the same 7631 value as LN and vice versa), these are now added on the 7632 grounds that if an object has a name we should be able to 7633 look it up. Finally added warning output when duplicate 7634 short or long names are found. 7635 [Steve Henson] 7636 7637 *) Changes needed for Tandem NSK. 7638 [Scott Uroff <scott@xypro.com>] 7639 7640 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in 7641 RSA_padding_check_SSLv23(), special padding was never detected 7642 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol 7643 version rollback attacks was not effective. 7644 7645 In s23_clnt.c, don't use special rollback-attack detection padding 7646 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the 7647 client; similarly, in s23_srvr.c, don't do the rollback check if 7648 SSL 2.0 is the only protocol enabled in the server. 7649 [Bodo Moeller] 7650 7651 *) Make it possible to get hexdumps of unprintable data with 'openssl 7652 asn1parse'. By implication, the functions ASN1_parse_dump() and 7653 BIO_dump_indent() are added. 7654 [Richard Levitte] 7655 7656 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex() 7657 these print out strings and name structures based on various 7658 flags including RFC2253 support and proper handling of 7659 multibyte characters. Added options to the 'x509' utility 7660 to allow the various flags to be set. 7661 [Steve Henson] 7662 7663 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME. 7664 Also change the functions X509_cmp_current_time() and 7665 X509_gmtime_adj() work with an ASN1_TIME structure, 7666 this will enable certificates using GeneralizedTime in validity 7667 dates to be checked. 7668 [Steve Henson] 7669 7670 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid 7671 negative public key encodings) on by default, 7672 NO_NEG_PUBKEY_BUG can be set to disable it. 7673 [Steve Henson] 7674 7675 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT 7676 content octets. An i2c_ASN1_OBJECT is unnecessary because 7677 the encoding can be trivially obtained from the structure. 7678 [Steve Henson] 7679 7680 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock), 7681 not read locks (CRYPTO_r_[un]lock). 7682 [Bodo Moeller] 7683 7684 *) A first attempt at creating official support for shared 7685 libraries through configuration. I've kept it so the 7686 default is static libraries only, and the OpenSSL programs 7687 are always statically linked for now, but there are 7688 preparations for dynamic linking in place. 7689 This has been tested on Linux and Tru64. 7690 [Richard Levitte] 7691 7692 *) Randomness polling function for Win9x, as described in: 7693 Peter Gutmann, Software Generation of Practically Strong 7694 Random Numbers. 7695 [Ulf M�ller] 7696 7697 *) Fix so PRNG is seeded in req if using an already existing 7698 DSA key. 7699 [Steve Henson] 7700 7701 *) New options to smime application. -inform and -outform 7702 allow alternative formats for the S/MIME message including 7703 PEM and DER. The -content option allows the content to be 7704 specified separately. This should allow things like Netscape 7705 form signing output easier to verify. 7706 [Steve Henson] 7707 7708 *) Fix the ASN1 encoding of tags using the 'long form'. 7709 [Steve Henson] 7710 7711 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT 7712 STRING types. These convert content octets to and from the 7713 underlying type. The actual tag and length octets are 7714 already assumed to have been read in and checked. These 7715 are needed because all other string types have virtually 7716 identical handling apart from the tag. By having versions 7717 of the ASN1 functions that just operate on content octets 7718 IMPLICIT tagging can be handled properly. It also allows 7719 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED 7720 and ASN1_INTEGER are identical apart from the tag. 7721 [Steve Henson] 7722 7723 *) Change the handling of OID objects as follows: 7724 7725 - New object identifiers are inserted in objects.txt, following 7726 the syntax given in objects.README. 7727 - objects.pl is used to process obj_mac.num and create a new 7728 obj_mac.h. 7729 - obj_dat.pl is used to create a new obj_dat.h, using the data in 7730 obj_mac.h. 7731 7732 This is currently kind of a hack, and the perl code in objects.pl 7733 isn't very elegant, but it works as I intended. The simplest way 7734 to check that it worked correctly is to look in obj_dat.h and 7735 check the array nid_objs and make sure the objects haven't moved 7736 around (this is important!). Additions are OK, as well as 7737 consistent name changes. 7738 [Richard Levitte] 7739 7740 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1'). 7741 [Bodo Moeller] 7742 7743 *) Addition of the command line parameter '-rand file' to 'openssl req'. 7744 The given file adds to whatever has already been seeded into the 7745 random pool through the RANDFILE configuration file option or 7746 environment variable, or the default random state file. 7747 [Richard Levitte] 7748 7749 *) mkstack.pl now sorts each macro group into lexical order. 7750 Previously the output order depended on the order the files 7751 appeared in the directory, resulting in needless rewriting 7752 of safestack.h . 7753 [Steve Henson] 7754 7755 *) Patches to make OpenSSL compile under Win32 again. Mostly 7756 work arounds for the VC++ problem that it treats func() as 7757 func(void). Also stripped out the parts of mkdef.pl that 7758 added extra typesafe functions: these no longer exist. 7759 [Steve Henson] 7760 7761 *) Reorganisation of the stack code. The macros are now all 7762 collected in safestack.h . Each macro is defined in terms of 7763 a "stack macro" of the form SKM_<name>(type, a, b). The 7764 DEBUG_SAFESTACK is now handled in terms of function casts, 7765 this has the advantage of retaining type safety without the 7766 use of additional functions. If DEBUG_SAFESTACK is not defined 7767 then the non typesafe macros are used instead. Also modified the 7768 mkstack.pl script to handle the new form. Needs testing to see 7769 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK 7770 the default if no major problems. Similar behaviour for ASN1_SET_OF 7771 and PKCS12_STACK_OF. 7772 [Steve Henson] 7773 7774 *) When some versions of IIS use the 'NET' form of private key the 7775 key derivation algorithm is different. Normally MD5(password) is 7776 used as a 128 bit RC4 key. In the modified case 7777 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some 7778 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same 7779 as the old Netscape_RSA functions except they have an additional 7780 'sgckey' parameter which uses the modified algorithm. Also added 7781 an -sgckey command line option to the rsa utility. Thanks to 7782 Adrian Peck <bertie@ncipher.com> for posting details of the modified 7783 algorithm to openssl-dev. 7784 [Steve Henson] 7785 7786 *) The evp_local.h macros were using 'c.##kname' which resulted in 7787 invalid expansion on some systems (SCO 5.0.5 for example). 7788 Corrected to 'c.kname'. 7789 [Phillip Porch <root@theporch.com>] 7790 7791 *) New X509_get1_email() and X509_REQ_get1_email() functions that return 7792 a STACK of email addresses from a certificate or request, these look 7793 in the subject name and the subject alternative name extensions and 7794 omit any duplicate addresses. 7795 [Steve Henson] 7796 7797 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows. 7798 This makes DSA verification about 2 % faster. 7799 [Bodo Moeller] 7800 7801 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5 7802 (meaning that now 2^5 values will be precomputed, which is only 4 KB 7803 plus overhead for 1024 bit moduli). 7804 This makes exponentiations about 0.5 % faster for 1024 bit 7805 exponents (as measured by "openssl speed rsa2048"). 7806 [Bodo Moeller] 7807 7808 *) Rename memory handling macros to avoid conflicts with other 7809 software: 7810 Malloc => OPENSSL_malloc 7811 Malloc_locked => OPENSSL_malloc_locked 7812 Realloc => OPENSSL_realloc 7813 Free => OPENSSL_free 7814 [Richard Levitte] 7815 7816 *) New function BN_mod_exp_mont_word for small bases (roughly 15% 7817 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange). 7818 [Bodo Moeller] 7819 7820 *) CygWin32 support. 7821 [John Jarvie <jjarvie@newsguy.com>] 7822 7823 *) The type-safe stack code has been rejigged. It is now only compiled 7824 in when OpenSSL is configured with the DEBUG_SAFESTACK option and 7825 by default all type-specific stack functions are "#define"d back to 7826 standard stack functions. This results in more streamlined output 7827 but retains the type-safety checking possibilities of the original 7828 approach. 7829 [Geoff Thorpe] 7830 7831 *) The STACK code has been cleaned up, and certain type declarations 7832 that didn't make a lot of sense have been brought in line. This has 7833 also involved a cleanup of sorts in safestack.h to more correctly 7834 map type-safe stack functions onto their plain stack counterparts. 7835 This work has also resulted in a variety of "const"ifications of 7836 lots of the code, especially "_cmp" operations which should normally 7837 be prototyped with "const" parameters anyway. 7838 [Geoff Thorpe] 7839 7840 *) When generating bytes for the first time in md_rand.c, 'stir the pool' 7841 by seeding with STATE_SIZE dummy bytes (with zero entropy count). 7842 (The PRNG state consists of two parts, the large pool 'state' and 'md', 7843 where all of 'md' is used each time the PRNG is used, but 'state' 7844 is used only indexed by a cyclic counter. As entropy may not be 7845 well distributed from the beginning, 'md' is important as a 7846 chaining variable. However, the output function chains only half 7847 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains 7848 all of 'md', and seeding with STATE_SIZE dummy bytes will result 7849 in all of 'state' being rewritten, with the new values depending 7850 on virtually all of 'md'. This overcomes the 80 bit limitation.) 7851 [Bodo Moeller] 7852 7853 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when 7854 the handshake is continued after ssl_verify_cert_chain(); 7855 otherwise, if SSL_VERIFY_NONE is set, remaining error codes 7856 can lead to 'unexplainable' connection aborts later. 7857 [Bodo Moeller; problem tracked down by Lutz Jaenicke] 7858 7859 *) Major EVP API cipher revision. 7860 Add hooks for extra EVP features. This allows various cipher 7861 parameters to be set in the EVP interface. Support added for variable 7862 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and 7863 setting of RC2 and RC5 parameters. 7864 7865 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length 7866 ciphers. 7867 7868 Remove lots of duplicated code from the EVP library. For example *every* 7869 cipher init() function handles the 'iv' in the same way according to the 7870 cipher mode. They also all do nothing if the 'key' parameter is NULL and 7871 for CFB and OFB modes they zero ctx->num. 7872 7873 New functionality allows removal of S/MIME code RC2 hack. 7874 7875 Most of the routines have the same form and so can be declared in terms 7876 of macros. 7877 7878 By shifting this to the top level EVP_CipherInit() it can be removed from 7879 all individual ciphers. If the cipher wants to handle IVs or keys 7880 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT 7881 flags. 7882 7883 Change lots of functions like EVP_EncryptUpdate() to now return a 7884 value: although software versions of the algorithms cannot fail 7885 any installed hardware versions can. 7886 [Steve Henson] 7887 7888 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if 7889 this option is set, tolerate broken clients that send the negotiated 7890 protocol version number instead of the requested protocol version 7891 number. 7892 [Bodo Moeller] 7893 7894 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag; 7895 i.e. non-zero for export ciphersuites, zero otherwise. 7896 Previous versions had this flag inverted, inconsistent with 7897 rsa_tmp_cb (..._TMP_RSA_CB). 7898 [Bodo Moeller; problem reported by Amit Chopra] 7899 7900 *) Add missing DSA library text string. Work around for some IIS 7901 key files with invalid SEQUENCE encoding. 7902 [Steve Henson] 7903 7904 *) Add a document (doc/standards.txt) that list all kinds of standards 7905 and so on that are implemented in OpenSSL. 7906 [Richard Levitte] 7907 7908 *) Enhance c_rehash script. Old version would mishandle certificates 7909 with the same subject name hash and wouldn't handle CRLs at all. 7910 Added -fingerprint option to crl utility, to support new c_rehash 7911 features. 7912 [Steve Henson] 7913 7914 *) Eliminate non-ANSI declarations in crypto.h and stack.h. 7915 [Ulf M�ller] 7916 7917 *) Fix for SSL server purpose checking. Server checking was 7918 rejecting certificates which had extended key usage present 7919 but no ssl client purpose. 7920 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>] 7921 7922 *) Make PKCS#12 code work with no password. The PKCS#12 spec 7923 is a little unclear about how a blank password is handled. 7924 Since the password in encoded as a BMPString with terminating 7925 double NULL a zero length password would end up as just the 7926 double NULL. However no password at all is different and is 7927 handled differently in the PKCS#12 key generation code. NS 7928 treats a blank password as zero length. MSIE treats it as no 7929 password on export: but it will try both on import. We now do 7930 the same: PKCS12_parse() tries zero length and no password if 7931 the password is set to "" or NULL (NULL is now a valid password: 7932 it wasn't before) as does the pkcs12 application. 7933 [Steve Henson] 7934 7935 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use 7936 perror when PEM_read_bio_X509_REQ fails, the error message must 7937 be obtained from the error queue. 7938 [Bodo Moeller] 7939 7940 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing 7941 it in ERR_remove_state if appropriate, and change ERR_get_state 7942 accordingly to avoid race conditions (this is necessary because 7943 thread_hash is no longer constant once set). 7944 [Bodo Moeller] 7945 7946 *) Bugfix for linux-elf makefile.one. 7947 [Ulf M�ller] 7948 7949 *) RSA_get_default_method() will now cause a default 7950 RSA_METHOD to be chosen if one doesn't exist already. 7951 Previously this was only set during a call to RSA_new() 7952 or RSA_new_method(NULL) meaning it was possible for 7953 RSA_get_default_method() to return NULL. 7954 [Geoff Thorpe] 7955 7956 *) Added native name translation to the existing DSO code 7957 that will convert (if the flag to do so is set) filenames 7958 that are sufficiently small and have no path information 7959 into a canonical native form. Eg. "blah" converted to 7960 "libblah.so" or "blah.dll" etc. 7961 [Geoff Thorpe] 7962 7963 *) New function ERR_error_string_n(e, buf, len) which is like 7964 ERR_error_string(e, buf), but writes at most 'len' bytes 7965 including the 0 terminator. For ERR_error_string_n, 'buf' 7966 may not be NULL. 7967 [Damien Miller <djm@mindrot.org>, Bodo Moeller] 7968 7969 *) CONF library reworked to become more general. A new CONF 7970 configuration file reader "class" is implemented as well as a 7971 new functions (NCONF_*, for "New CONF") to handle it. The now 7972 old CONF_* functions are still there, but are reimplemented to 7973 work in terms of the new functions. Also, a set of functions 7974 to handle the internal storage of the configuration data is 7975 provided to make it easier to write new configuration file 7976 reader "classes" (I can definitely see something reading a 7977 configuration file in XML format, for example), called _CONF_*, 7978 or "the configuration storage API"... 7979 7980 The new configuration file reading functions are: 7981 7982 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio, 7983 NCONF_get_section, NCONF_get_string, NCONF_get_numbre 7984 7985 NCONF_default, NCONF_WIN32 7986 7987 NCONF_dump_fp, NCONF_dump_bio 7988 7989 NCONF_default and NCONF_WIN32 are method (or "class") choosers, 7990 NCONF_new creates a new CONF object. This works in the same way 7991 as other interfaces in OpenSSL, like the BIO interface. 7992 NCONF_dump_* dump the internal storage of the configuration file, 7993 which is useful for debugging. All other functions take the same 7994 arguments as the old CONF_* functions wth the exception of the 7995 first that must be a `CONF *' instead of a `LHASH *'. 7996 7997 To make it easer to use the new classes with the old CONF_* functions, 7998 the function CONF_set_default_method is provided. 7999 [Richard Levitte] 8000 8001 *) Add '-tls1' option to 'openssl ciphers', which was already 8002 mentioned in the documentation but had not been implemented. 8003 (This option is not yet really useful because even the additional 8004 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.) 8005 [Bodo Moeller] 8006 8007 *) Initial DSO code added into libcrypto for letting OpenSSL (and 8008 OpenSSL-based applications) load shared libraries and bind to 8009 them in a portable way. 8010 [Geoff Thorpe, with contributions from Richard Levitte] 8011 8012 Changes between 0.9.5 and 0.9.5a [1 Apr 2000] 8013 8014 *) Make sure _lrotl and _lrotr are only used with MSVC. 8015 8016 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status 8017 (the default implementation of RAND_status). 8018 8019 *) Rename openssl x509 option '-crlext', which was added in 0.9.5, 8020 to '-clrext' (= clear extensions), as intended and documented. 8021 [Bodo Moeller; inconsistency pointed out by Michael Attili 8022 <attili@amaxo.com>] 8023 8024 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length 8025 was larger than the MD block size. 8026 [Steve Henson, pointed out by Yost William <YostW@tce.com>] 8027 8028 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument 8029 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set() 8030 using the passed key: if the passed key was a private key the result 8031 of X509_print(), for example, would be to print out all the private key 8032 components. 8033 [Steve Henson] 8034 8035 *) des_quad_cksum() byte order bug fix. 8036 [Ulf M�ller, using the problem description in krb4-0.9.7, where 8037 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>] 8038 8039 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly 8040 discouraged. 8041 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>] 8042 8043 *) For easily testing in shell scripts whether some command 8044 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX' 8045 returns with exit code 0 iff no command of the given name is available. 8046 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases, 8047 the output goes to stdout and nothing is printed to stderr. 8048 Additional arguments are always ignored. 8049 8050 Since for each cipher there is a command of the same name, 8051 the 'no-cipher' compilation switches can be tested this way. 8052 8053 ('openssl no-XXX' is not able to detect pseudo-commands such 8054 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.) 8055 [Bodo Moeller] 8056 8057 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration. 8058 [Bodo Moeller] 8059 8060 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE 8061 is set; it will be thrown away anyway because each handshake creates 8062 its own key. 8063 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition 8064 to parameters -- in previous versions (since OpenSSL 0.9.3) the 8065 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining 8066 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro. 8067 [Bodo Moeller] 8068 8069 *) New s_client option -ign_eof: EOF at stdin is ignored, and 8070 'Q' and 'R' lose their special meanings (quit/renegotiate). 8071 This is part of what -quiet does; unlike -quiet, -ign_eof 8072 does not suppress any output. 8073 [Richard Levitte] 8074 8075 *) Add compatibility options to the purpose and trust code. The 8076 purpose X509_PURPOSE_ANY is "any purpose" which automatically 8077 accepts a certificate or CA, this was the previous behaviour, 8078 with all the associated security issues. 8079 8080 X509_TRUST_COMPAT is the old trust behaviour: only and 8081 automatically trust self signed roots in certificate store. A 8082 new trust setting X509_TRUST_DEFAULT is used to specify that 8083 a purpose has no associated trust setting and it should instead 8084 use the value in the default purpose. 8085 [Steve Henson] 8086 8087 *) Fix the PKCS#8 DSA private key code so it decodes keys again 8088 and fix a memory leak. 8089 [Steve Henson] 8090 8091 *) In util/mkerr.pl (which implements 'make errors'), preserve 8092 reason strings from the previous version of the .c file, as 8093 the default to have only downcase letters (and digits) in 8094 automatically generated reasons codes is not always appropriate. 8095 [Bodo Moeller] 8096 8097 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table 8098 using strerror. Previously, ERR_reason_error_string() returned 8099 library names as reason strings for SYSerr; but SYSerr is a special 8100 case where small numbers are errno values, not library numbers. 8101 [Bodo Moeller] 8102 8103 *) Add '-dsaparam' option to 'openssl dhparam' application. This 8104 converts DSA parameters into DH parameters. (When creating parameters, 8105 DSA_generate_parameters is used.) 8106 [Bodo Moeller] 8107 8108 *) Include 'length' (recommended exponent length) in C code generated 8109 by 'openssl dhparam -C'. 8110 [Bodo Moeller] 8111 8112 *) The second argument to set_label in perlasm was already being used 8113 so couldn't be used as a "file scope" flag. Moved to third argument 8114 which was free. 8115 [Steve Henson] 8116 8117 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes 8118 instead of RAND_bytes for encryption IVs and salts. 8119 [Bodo Moeller] 8120 8121 *) Include RAND_status() into RAND_METHOD instead of implementing 8122 it only for md_rand.c Otherwise replacing the PRNG by calling 8123 RAND_set_rand_method would be impossible. 8124 [Bodo Moeller] 8125 8126 *) Don't let DSA_generate_key() enter an infinite loop if the random 8127 number generation fails. 8128 [Bodo Moeller] 8129 8130 *) New 'rand' application for creating pseudo-random output. 8131 [Bodo Moeller] 8132 8133 *) Added configuration support for Linux/IA64 8134 [Rolf Haberrecker <rolf@suse.de>] 8135 8136 *) Assembler module support for Mingw32. 8137 [Ulf M�ller] 8138 8139 *) Shared library support for HPUX (in shlib/). 8140 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous] 8141 8142 *) Shared library support for Solaris gcc. 8143 [Lutz Behnke <behnke@trustcenter.de>] 8144 8145 Changes between 0.9.4 and 0.9.5 [28 Feb 2000] 8146 8147 *) PKCS7_encrypt() was adding text MIME headers twice because they 8148 were added manually and by SMIME_crlf_copy(). 8149 [Steve Henson] 8150 8151 *) In bntest.c don't call BN_rand with zero bits argument. 8152 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>] 8153 8154 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n] 8155 case was implemented. This caused BN_div_recp() to fail occasionally. 8156 [Ulf M�ller] 8157 8158 *) Add an optional second argument to the set_label() in the perl 8159 assembly language builder. If this argument exists and is set 8160 to 1 it signals that the assembler should use a symbol whose 8161 scope is the entire file, not just the current function. This 8162 is needed with MASM which uses the format label:: for this scope. 8163 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>] 8164 8165 *) Change the ASN1 types so they are typedefs by default. Before 8166 almost all types were #define'd to ASN1_STRING which was causing 8167 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING) 8168 for example. 8169 [Steve Henson] 8170 8171 *) Change names of new functions to the new get1/get0 naming 8172 convention: After 'get1', the caller owns a reference count 8173 and has to call ..._free; 'get0' returns a pointer to some 8174 data structure without incrementing reference counters. 8175 (Some of the existing 'get' functions increment a reference 8176 counter, some don't.) 8177 Similarly, 'set1' and 'add1' functions increase reference 8178 counters or duplicate objects. 8179 [Steve Henson] 8180 8181 *) Allow for the possibility of temp RSA key generation failure: 8182 the code used to assume it always worked and crashed on failure. 8183 [Steve Henson] 8184 8185 *) Fix potential buffer overrun problem in BIO_printf(). 8186 [Ulf M�ller, using public domain code by Patrick Powell; problem 8187 pointed out by David Sacerdote <das33@cornell.edu>] 8188 8189 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions 8190 RAND_egd() and RAND_status(). In the command line application, 8191 the EGD socket can be specified like a seed file using RANDFILE 8192 or -rand. 8193 [Ulf M�ller] 8194 8195 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures. 8196 Some CAs (e.g. Verisign) distribute certificates in this form. 8197 [Steve Henson] 8198 8199 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher 8200 list to exclude them. This means that no special compilation option 8201 is needed to use anonymous DH: it just needs to be included in the 8202 cipher list. 8203 [Steve Henson] 8204 8205 *) Change the EVP_MD_CTX_type macro so its meaning consistent with 8206 EVP_MD_type. The old functionality is available in a new macro called 8207 EVP_MD_md(). Change code that uses it and update docs. 8208 [Steve Henson] 8209 8210 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions 8211 where the 'void *' argument is replaced by a function pointer argument. 8212 Previously 'void *' was abused to point to functions, which works on 8213 many platforms, but is not correct. As these functions are usually 8214 called by macros defined in OpenSSL header files, most source code 8215 should work without changes. 8216 [Richard Levitte] 8217 8218 *) <openssl/opensslconf.h> (which is created by Configure) now contains 8219 sections with information on -D... compiler switches used for 8220 compiling the library so that applications can see them. To enable 8221 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES 8222 must be defined. E.g., 8223 #define OPENSSL_ALGORITHM_DEFINES 8224 #include <openssl/opensslconf.h> 8225 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc. 8226 [Richard Levitte, Ulf and Bodo M�ller] 8227 8228 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS 8229 record layer. 8230 [Bodo Moeller] 8231 8232 *) Change the 'other' type in certificate aux info to a STACK_OF 8233 X509_ALGOR. Although not an AlgorithmIdentifier as such it has 8234 the required ASN1 format: arbitrary types determined by an OID. 8235 [Steve Henson] 8236 8237 *) Add some PEM_write_X509_REQ_NEW() functions and a command line 8238 argument to 'req'. This is not because the function is newer or 8239 better than others it just uses the work 'NEW' in the certificate 8240 request header lines. Some software needs this. 8241 [Steve Henson] 8242 8243 *) Reorganise password command line arguments: now passwords can be 8244 obtained from various sources. Delete the PEM_cb function and make 8245 it the default behaviour: i.e. if the callback is NULL and the 8246 usrdata argument is not NULL interpret it as a null terminated pass 8247 phrase. If usrdata and the callback are NULL then the pass phrase 8248 is prompted for as usual. 8249 [Steve Henson] 8250 8251 *) Add support for the Compaq Atalla crypto accelerator. If it is installed, 8252 the support is automatically enabled. The resulting binaries will 8253 autodetect the card and use it if present. 8254 [Ben Laurie and Compaq Inc.] 8255 8256 *) Work around for Netscape hang bug. This sends certificate request 8257 and server done in one record. Since this is perfectly legal in the 8258 SSL/TLS protocol it isn't a "bug" option and is on by default. See 8259 the bugs/SSLv3 entry for more info. 8260 [Steve Henson] 8261 8262 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround. 8263 [Andy Polyakov] 8264 8265 *) Add -rand argument to smime and pkcs12 applications and read/write 8266 of seed file. 8267 [Steve Henson] 8268 8269 *) New 'passwd' tool for crypt(3) and apr1 password hashes. 8270 [Bodo Moeller] 8271 8272 *) Add command line password options to the remaining applications. 8273 [Steve Henson] 8274 8275 *) Bug fix for BN_div_recp() for numerators with an even number of 8276 bits. 8277 [Ulf M�ller] 8278 8279 *) More tests in bntest.c, and changed test_bn output. 8280 [Ulf M�ller] 8281 8282 *) ./config recognizes MacOS X now. 8283 [Andy Polyakov] 8284 8285 *) Bug fix for BN_div() when the first words of num and divsor are 8286 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0). 8287 [Ulf M�ller] 8288 8289 *) Add support for various broken PKCS#8 formats, and command line 8290 options to produce them. 8291 [Steve Henson] 8292 8293 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to 8294 get temporary BIGNUMs from a BN_CTX. 8295 [Ulf M�ller] 8296 8297 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont() 8298 for p == 0. 8299 [Ulf M�ller] 8300 8301 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and 8302 include a #define from the old name to the new. The original intent 8303 was that statically linked binaries could for example just call 8304 SSLeay_add_all_ciphers() to just add ciphers to the table and not 8305 link with digests. This never worked becayse SSLeay_add_all_digests() 8306 and SSLeay_add_all_ciphers() were in the same source file so calling 8307 one would link with the other. They are now in separate source files. 8308 [Steve Henson] 8309 8310 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'. 8311 [Steve Henson] 8312 8313 *) Use a less unusual form of the Miller-Rabin primality test (it used 8314 a binary algorithm for exponentiation integrated into the Miller-Rabin 8315 loop, our standard modexp algorithms are faster). 8316 [Bodo Moeller] 8317 8318 *) Support for the EBCDIC character set completed. 8319 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>] 8320 8321 *) Source code cleanups: use const where appropriate, eliminate casts, 8322 use void * instead of char * in lhash. 8323 [Ulf M�ller] 8324 8325 *) Bugfix: ssl3_send_server_key_exchange was not restartable 8326 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of 8327 this the server could overwrite ephemeral keys that the client 8328 has already seen). 8329 [Bodo Moeller] 8330 8331 *) Turn DSA_is_prime into a macro that calls BN_is_prime, 8332 using 50 iterations of the Rabin-Miller test. 8333 8334 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50 8335 iterations of the Rabin-Miller test as required by the appendix 8336 to FIPS PUB 186[-1]) instead of DSA_is_prime. 8337 As BN_is_prime_fasttest includes trial division, DSA parameter 8338 generation becomes much faster. 8339 8340 This implies a change for the callback functions in DSA_is_prime 8341 and DSA_generate_parameters: The callback function is called once 8342 for each positive witness in the Rabin-Miller test, not just 8343 occasionally in the inner loop; and the parameters to the 8344 callback function now provide an iteration count for the outer 8345 loop rather than for the current invocation of the inner loop. 8346 DSA_generate_parameters additionally can call the callback 8347 function with an 'iteration count' of -1, meaning that a 8348 candidate has passed the trial division test (when q is generated 8349 from an application-provided seed, trial division is skipped). 8350 [Bodo Moeller] 8351 8352 *) New function BN_is_prime_fasttest that optionally does trial 8353 division before starting the Rabin-Miller test and has 8354 an additional BN_CTX * argument (whereas BN_is_prime always 8355 has to allocate at least one BN_CTX). 8356 'callback(1, -1, cb_arg)' is called when a number has passed the 8357 trial division stage. 8358 [Bodo Moeller] 8359 8360 *) Fix for bug in CRL encoding. The validity dates weren't being handled 8361 as ASN1_TIME. 8362 [Steve Henson] 8363 8364 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file. 8365 [Steve Henson] 8366 8367 *) New function BN_pseudo_rand(). 8368 [Ulf M�ller] 8369 8370 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable) 8371 bignum version of BN_from_montgomery() with the working code from 8372 SSLeay 0.9.0 (the word based version is faster anyway), and clean up 8373 the comments. 8374 [Ulf M�ller] 8375 8376 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that 8377 made it impossible to use the same SSL_SESSION data structure in 8378 SSL2 clients in multiple threads. 8379 [Bodo Moeller] 8380 8381 *) The return value of RAND_load_file() no longer counts bytes obtained 8382 by stat(). RAND_load_file(..., -1) is new and uses the complete file 8383 to seed the PRNG (previously an explicit byte count was required). 8384 [Ulf M�ller, Bodo M�ller] 8385 8386 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes 8387 used (char *) instead of (void *) and had casts all over the place. 8388 [Steve Henson] 8389 8390 *) Make BN_generate_prime() return NULL on error if ret!=NULL. 8391 [Ulf M�ller] 8392 8393 *) Retain source code compatibility for BN_prime_checks macro: 8394 BN_is_prime(..., BN_prime_checks, ...) now uses 8395 BN_prime_checks_for_size to determine the appropriate number of 8396 Rabin-Miller iterations. 8397 [Ulf M�ller] 8398 8399 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to 8400 DH_CHECK_P_NOT_SAFE_PRIME. 8401 (Check if this is true? OpenPGP calls them "strong".) 8402 [Ulf M�ller] 8403 8404 *) Merge the functionality of "dh" and "gendh" programs into a new program 8405 "dhparam". The old programs are retained for now but will handle DH keys 8406 (instead of parameters) in future. 8407 [Steve Henson] 8408 8409 *) Make the ciphers, s_server and s_client programs check the return values 8410 when a new cipher list is set. 8411 [Steve Henson] 8412 8413 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit 8414 ciphers. Before when the 56bit ciphers were enabled the sorting was 8415 wrong. 8416 8417 The syntax for the cipher sorting has been extended to support sorting by 8418 cipher-strength (using the strength_bits hard coded in the tables). 8419 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod). 8420 8421 Fix a bug in the cipher-command parser: when supplying a cipher command 8422 string with an "undefined" symbol (neither command nor alphanumeric 8423 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now 8424 an error is flagged. 8425 8426 Due to the strength-sorting extension, the code of the 8427 ssl_create_cipher_list() function was completely rearranged. I hope that 8428 the readability was also increased :-) 8429 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>] 8430 8431 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1 8432 for the first serial number and places 2 in the serial number file. This 8433 avoids problems when the root CA is created with serial number zero and 8434 the first user certificate has the same issuer name and serial number 8435 as the root CA. 8436 [Steve Henson] 8437 8438 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses 8439 the new code. Add documentation for this stuff. 8440 [Steve Henson] 8441 8442 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from 8443 X509_*() to X509at_*() on the grounds that they don't handle X509 8444 structures and behave in an analagous way to the X509v3 functions: 8445 they shouldn't be called directly but wrapper functions should be used 8446 instead. 8447 8448 So we also now have some wrapper functions that call the X509at functions 8449 when passed certificate requests. (TO DO: similar things can be done with 8450 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other 8451 things. Some of these need some d2i or i2d and print functionality 8452 because they handle more complex structures.) 8453 [Steve Henson] 8454 8455 *) Add missing #ifndefs that caused missing symbols when building libssl 8456 as a shared library without RSA. Use #ifndef NO_SSL2 instead of 8457 NO_RSA in ssl/s2*.c. 8458 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf M�ller] 8459 8460 *) Precautions against using the PRNG uninitialized: RAND_bytes() now 8461 has a return value which indicates the quality of the random data 8462 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's 8463 error queue. New function RAND_pseudo_bytes() generates output that is 8464 guaranteed to be unique but not unpredictable. RAND_add is like 8465 RAND_seed, but takes an extra argument for an entropy estimate 8466 (RAND_seed always assumes full entropy). 8467 [Ulf M�ller] 8468 8469 *) Do more iterations of Rabin-Miller probable prime test (specifically, 8470 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes 8471 instead of only 2 for all lengths; see BN_prime_checks_for_size definition 8472 in crypto/bn/bn_prime.c for the complete table). This guarantees a 8473 false-positive rate of at most 2^-80 for random input. 8474 [Bodo Moeller] 8475 8476 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs. 8477 [Bodo Moeller] 8478 8479 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain 8480 in the 0.9.5 release), this returns the chain 8481 from an X509_CTX structure with a dup of the stack and all 8482 the X509 reference counts upped: so the stack will exist 8483 after X509_CTX_cleanup() has been called. Modify pkcs12.c 8484 to use this. 8485 8486 Also make SSL_SESSION_print() print out the verify return 8487 code. 8488 [Steve Henson] 8489 8490 *) Add manpage for the pkcs12 command. Also change the default 8491 behaviour so MAC iteration counts are used unless the new 8492 -nomaciter option is used. This improves file security and 8493 only older versions of MSIE (4.0 for example) need it. 8494 [Steve Henson] 8495 8496 *) Honor the no-xxx Configure options when creating .DEF files. 8497 [Ulf M�ller] 8498 8499 *) Add PKCS#10 attributes to field table: challengePassword, 8500 unstructuredName and unstructuredAddress. These are taken from 8501 draft PKCS#9 v2.0 but are compatible with v1.2 provided no 8502 international characters are used. 8503 8504 More changes to X509_ATTRIBUTE code: allow the setting of types 8505 based on strings. Remove the 'loc' parameter when adding 8506 attributes because these will be a SET OF encoding which is sorted 8507 in ASN1 order. 8508 [Steve Henson] 8509 8510 *) Initial changes to the 'req' utility to allow request generation 8511 automation. This will allow an application to just generate a template 8512 file containing all the field values and have req construct the 8513 request. 8514 8515 Initial support for X509_ATTRIBUTE handling. Stacks of these are 8516 used all over the place including certificate requests and PKCS#7 8517 structures. They are currently handled manually where necessary with 8518 some primitive wrappers for PKCS#7. The new functions behave in a 8519 manner analogous to the X509 extension functions: they allow 8520 attributes to be looked up by NID and added. 8521 8522 Later something similar to the X509V3 code would be desirable to 8523 automatically handle the encoding, decoding and printing of the 8524 more complex types. The string types like challengePassword can 8525 be handled by the string table functions. 8526 8527 Also modified the multi byte string table handling. Now there is 8528 a 'global mask' which masks out certain types. The table itself 8529 can use the flag STABLE_NO_MASK to ignore the mask setting: this 8530 is useful when for example there is only one permissible type 8531 (as in countryName) and using the mask might result in no valid 8532 types at all. 8533 [Steve Henson] 8534 8535 *) Clean up 'Finished' handling, and add functions SSL_get_finished and 8536 SSL_get_peer_finished to allow applications to obtain the latest 8537 Finished messages sent to the peer or expected from the peer, 8538 respectively. (SSL_get_peer_finished is usually the Finished message 8539 actually received from the peer, otherwise the protocol will be aborted.) 8540 8541 As the Finished message are message digests of the complete handshake 8542 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can 8543 be used for external authentication procedures when the authentication 8544 provided by SSL/TLS is not desired or is not enough. 8545 [Bodo Moeller] 8546 8547 *) Enhanced support for Alpha Linux is added. Now ./config checks if 8548 the host supports BWX extension and if Compaq C is present on the 8549 $PATH. Just exploiting of the BWX extension results in 20-30% 8550 performance kick for some algorithms, e.g. DES and RC4 to mention 8551 a couple. Compaq C in turn generates ~20% faster code for MD5 and 8552 SHA1. 8553 [Andy Polyakov] 8554 8555 *) Add support for MS "fast SGC". This is arguably a violation of the 8556 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with 8557 weak crypto and after checking the certificate is SGC a second one 8558 with strong crypto. MS SGC stops the first handshake after receiving 8559 the server certificate message and sends a second client hello. Since 8560 a server will typically do all the time consuming operations before 8561 expecting any further messages from the client (server key exchange 8562 is the most expensive) there is little difference between the two. 8563 8564 To get OpenSSL to support MS SGC we have to permit a second client 8565 hello message after we have sent server done. In addition we have to 8566 reset the MAC if we do get this second client hello. 8567 [Steve Henson] 8568 8569 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide 8570 if a DER encoded private key is RSA or DSA traditional format. Changed 8571 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional" 8572 format DER encoded private key. Newer code should use PKCS#8 format which 8573 has the key type encoded in the ASN1 structure. Added DER private key 8574 support to pkcs8 application. 8575 [Steve Henson] 8576 8577 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous 8578 ciphersuites has been selected (as required by the SSL 3/TLS 1 8579 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT 8580 is set, we interpret this as a request to violate the specification 8581 (the worst that can happen is a handshake failure, and 'correct' 8582 behaviour would result in a handshake failure anyway). 8583 [Bodo Moeller] 8584 8585 *) In SSL_CTX_add_session, take into account that there might be multiple 8586 SSL_SESSION structures with the same session ID (e.g. when two threads 8587 concurrently obtain them from an external cache). 8588 The internal cache can handle only one SSL_SESSION with a given ID, 8589 so if there's a conflict, we now throw out the old one to achieve 8590 consistency. 8591 [Bodo Moeller] 8592 8593 *) Add OIDs for idea and blowfish in CBC mode. This will allow both 8594 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to 8595 some routines that use cipher OIDs: some ciphers do not have OIDs 8596 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for 8597 example. 8598 [Steve Henson] 8599 8600 *) Simplify the trust setting structure and code. Now we just have 8601 two sequences of OIDs for trusted and rejected settings. These will 8602 typically have values the same as the extended key usage extension 8603 and any application specific purposes. 8604 8605 The trust checking code now has a default behaviour: it will just 8606 check for an object with the same NID as the passed id. Functions can 8607 be provided to override either the default behaviour or the behaviour 8608 for a given id. SSL client, server and email already have functions 8609 in place for compatibility: they check the NID and also return "trusted" 8610 if the certificate is self signed. 8611 [Steve Henson] 8612 8613 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the 8614 traditional format into an EVP_PKEY structure. 8615 [Steve Henson] 8616 8617 *) Add a password callback function PEM_cb() which either prompts for 8618 a password if usr_data is NULL or otherwise assumes it is a null 8619 terminated password. Allow passwords to be passed on command line 8620 environment or config files in a few more utilities. 8621 [Steve Henson] 8622 8623 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private 8624 keys. Add some short names for PKCS#8 PBE algorithms and allow them 8625 to be specified on the command line for the pkcs8 and pkcs12 utilities. 8626 Update documentation. 8627 [Steve Henson] 8628 8629 *) Support for ASN1 "NULL" type. This could be handled before by using 8630 ASN1_TYPE but there wasn't any function that would try to read a NULL 8631 and produce an error if it couldn't. For compatibility we also have 8632 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and 8633 don't allocate anything because they don't need to. 8634 [Steve Henson] 8635 8636 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS 8637 for details. 8638 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>] 8639 8640 *) Rebuild of the memory allocation routines used by OpenSSL code and 8641 possibly others as well. The purpose is to make an interface that 8642 provide hooks so anyone can build a separate set of allocation and 8643 deallocation routines to be used by OpenSSL, for example memory 8644 pool implementations, or something else, which was previously hard 8645 since Malloc(), Realloc() and Free() were defined as macros having 8646 the values malloc, realloc and free, respectively (except for Win32 8647 compilations). The same is provided for memory debugging code. 8648 OpenSSL already comes with functionality to find memory leaks, but 8649 this gives people a chance to debug other memory problems. 8650 8651 With these changes, a new set of functions and macros have appeared: 8652 8653 CRYPTO_set_mem_debug_functions() [F] 8654 CRYPTO_get_mem_debug_functions() [F] 8655 CRYPTO_dbg_set_options() [F] 8656 CRYPTO_dbg_get_options() [F] 8657 CRYPTO_malloc_debug_init() [M] 8658 8659 The memory debug functions are NULL by default, unless the library 8660 is compiled with CRYPTO_MDEBUG or friends is defined. If someone 8661 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which 8662 gives the standard debugging functions that come with OpenSSL) or 8663 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions 8664 provided by the library user) must be used. When the standard 8665 debugging functions are used, CRYPTO_dbg_set_options can be used to 8666 request additional information: 8667 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting 8668 the CRYPTO_MDEBUG_xxx macro when compiling the library. 8669 8670 Also, things like CRYPTO_set_mem_functions will always give the 8671 expected result (the new set of functions is used for allocation 8672 and deallocation) at all times, regardless of platform and compiler 8673 options. 8674 8675 To finish it up, some functions that were never use in any other 8676 way than through macros have a new API and new semantic: 8677 8678 CRYPTO_dbg_malloc() 8679 CRYPTO_dbg_realloc() 8680 CRYPTO_dbg_free() 8681 8682 All macros of value have retained their old syntax. 8683 [Richard Levitte and Bodo Moeller] 8684 8685 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the 8686 ordering of SMIMECapabilities wasn't in "strength order" and there 8687 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature 8688 algorithm. 8689 [Steve Henson] 8690 8691 *) Some ASN1 types with illegal zero length encoding (INTEGER, 8692 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines. 8693 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson] 8694 8695 *) Merge in my S/MIME library for OpenSSL. This provides a simple 8696 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough 8697 functionality to handle multipart/signed properly) and a utility 8698 called 'smime' to call all this stuff. This is based on code I 8699 originally wrote for Celo who have kindly allowed it to be 8700 included in OpenSSL. 8701 [Steve Henson] 8702 8703 *) Add variants des_set_key_checked and des_set_key_unchecked of 8704 des_set_key (aka des_key_sched). Global variable des_check_key 8705 decides which of these is called by des_set_key; this way 8706 des_check_key behaves as it always did, but applications and 8707 the library itself, which was buggy for des_check_key == 1, 8708 have a cleaner way to pick the version they need. 8709 [Bodo Moeller] 8710 8711 *) New function PKCS12_newpass() which changes the password of a 8712 PKCS12 structure. 8713 [Steve Henson] 8714 8715 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and 8716 dynamic mix. In both cases the ids can be used as an index into the 8717 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add() 8718 functions so they accept a list of the field values and the 8719 application doesn't need to directly manipulate the X509_TRUST 8720 structure. 8721 [Steve Henson] 8722 8723 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't 8724 need initialising. 8725 [Steve Henson] 8726 8727 *) Modify the way the V3 extension code looks up extensions. This now 8728 works in a similar way to the object code: we have some "standard" 8729 extensions in a static table which is searched with OBJ_bsearch() 8730 and the application can add dynamic ones if needed. The file 8731 crypto/x509v3/ext_dat.h now has the info: this file needs to be 8732 updated whenever a new extension is added to the core code and kept 8733 in ext_nid order. There is a simple program 'tabtest.c' which checks 8734 this. New extensions are not added too often so this file can readily 8735 be maintained manually. 8736 8737 There are two big advantages in doing things this way. The extensions 8738 can be looked up immediately and no longer need to be "added" using 8739 X509V3_add_standard_extensions(): this function now does nothing. 8740 [Side note: I get *lots* of email saying the extension code doesn't 8741 work because people forget to call this function] 8742 Also no dynamic allocation is done unless new extensions are added: 8743 so if we don't add custom extensions there is no need to call 8744 X509V3_EXT_cleanup(). 8745 [Steve Henson] 8746 8747 *) Modify enc utility's salting as follows: make salting the default. Add a 8748 magic header, so unsalted files fail gracefully instead of just decrypting 8749 to garbage. This is because not salting is a big security hole, so people 8750 should be discouraged from doing it. 8751 [Ben Laurie] 8752 8753 *) Fixes and enhancements to the 'x509' utility. It allowed a message 8754 digest to be passed on the command line but it only used this 8755 parameter when signing a certificate. Modified so all relevant 8756 operations are affected by the digest parameter including the 8757 -fingerprint and -x509toreq options. Also -x509toreq choked if a 8758 DSA key was used because it didn't fix the digest. 8759 [Steve Henson] 8760 8761 *) Initial certificate chain verify code. Currently tests the untrusted 8762 certificates for consistency with the verify purpose (which is set 8763 when the X509_STORE_CTX structure is set up) and checks the pathlength. 8764 8765 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour: 8766 this is because it will reject chains with invalid extensions whereas 8767 every previous version of OpenSSL and SSLeay made no checks at all. 8768 8769 Trust code: checks the root CA for the relevant trust settings. Trust 8770 settings have an initial value consistent with the verify purpose: e.g. 8771 if the verify purpose is for SSL client use it expects the CA to be 8772 trusted for SSL client use. However the default value can be changed to 8773 permit custom trust settings: one example of this would be to only trust 8774 certificates from a specific "secure" set of CAs. 8775 8776 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions 8777 which should be used for version portability: especially since the 8778 verify structure is likely to change more often now. 8779 8780 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions 8781 to set them. If not set then assume SSL clients will verify SSL servers 8782 and vice versa. 8783 8784 Two new options to the verify program: -untrusted allows a set of 8785 untrusted certificates to be passed in and -purpose which sets the 8786 intended purpose of the certificate. If a purpose is set then the 8787 new chain verify code is used to check extension consistency. 8788 [Steve Henson] 8789 8790 *) Support for the authority information access extension. 8791 [Steve Henson] 8792 8793 *) Modify RSA and DSA PEM read routines to transparently handle 8794 PKCS#8 format private keys. New *_PUBKEY_* functions that handle 8795 public keys in a format compatible with certificate 8796 SubjectPublicKeyInfo structures. Unfortunately there were already 8797 functions called *_PublicKey_* which used various odd formats so 8798 these are retained for compatibility: however the DSA variants were 8799 never in a public release so they have been deleted. Changed dsa/rsa 8800 utilities to handle the new format: note no releases ever handled public 8801 keys so we should be OK. 8802 8803 The primary motivation for this change is to avoid the same fiasco 8804 that dogs private keys: there are several incompatible private key 8805 formats some of which are standard and some OpenSSL specific and 8806 require various evil hacks to allow partial transparent handling and 8807 even then it doesn't work with DER formats. Given the option anything 8808 other than PKCS#8 should be dumped: but the other formats have to 8809 stay in the name of compatibility. 8810 8811 With public keys and the benefit of hindsight one standard format 8812 is used which works with EVP_PKEY, RSA or DSA structures: though 8813 it clearly returns an error if you try to read the wrong kind of key. 8814 8815 Added a -pubkey option to the 'x509' utility to output the public key. 8816 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*() 8817 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add 8818 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*()) 8819 that do the same as the EVP_PKEY_assign_*() except they up the 8820 reference count of the added key (they don't "swallow" the 8821 supplied key). 8822 [Steve Henson] 8823 8824 *) Fixes to crypto/x509/by_file.c the code to read in certificates and 8825 CRLs would fail if the file contained no certificates or no CRLs: 8826 added a new function to read in both types and return the number 8827 read: this means that if none are read it will be an error. The 8828 DER versions of the certificate and CRL reader would always fail 8829 because it isn't possible to mix certificates and CRLs in DER format 8830 without choking one or the other routine. Changed this to just read 8831 a certificate: this is the best we can do. Also modified the code 8832 in apps/verify.c to take notice of return codes: it was previously 8833 attempting to read in certificates from NULL pointers and ignoring 8834 any errors: this is one reason why the cert and CRL reader seemed 8835 to work. It doesn't check return codes from the default certificate 8836 routines: these may well fail if the certificates aren't installed. 8837 [Steve Henson] 8838 8839 *) Code to support otherName option in GeneralName. 8840 [Steve Henson] 8841 8842 *) First update to verify code. Change the verify utility 8843 so it warns if it is passed a self signed certificate: 8844 for consistency with the normal behaviour. X509_verify 8845 has been modified to it will now verify a self signed 8846 certificate if *exactly* the same certificate appears 8847 in the store: it was previously impossible to trust a 8848 single self signed certificate. This means that: 8849 openssl verify ss.pem 8850 now gives a warning about a self signed certificate but 8851 openssl verify -CAfile ss.pem ss.pem 8852 is OK. 8853 [Steve Henson] 8854 8855 *) For servers, store verify_result in SSL_SESSION data structure 8856 (and add it to external session representation). 8857 This is needed when client certificate verifications fails, 8858 but an application-provided verification callback (set by 8859 SSL_CTX_set_cert_verify_callback) allows accepting the session 8860 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK 8861 but returns 1): When the session is reused, we have to set 8862 ssl->verify_result to the appropriate error code to avoid 8863 security holes. 8864 [Bodo Moeller, problem pointed out by Lutz Jaenicke] 8865 8866 *) Fix a bug in the new PKCS#7 code: it didn't consider the 8867 case in PKCS7_dataInit() where the signed PKCS7 structure 8868 didn't contain any existing data because it was being created. 8869 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson] 8870 8871 *) Add a salt to the key derivation routines in enc.c. This 8872 forms the first 8 bytes of the encrypted file. Also add a 8873 -S option to allow a salt to be input on the command line. 8874 [Steve Henson] 8875 8876 *) New function X509_cmp(). Oddly enough there wasn't a function 8877 to compare two certificates. We do this by working out the SHA1 8878 hash and comparing that. X509_cmp() will be needed by the trust 8879 code. 8880 [Steve Henson] 8881 8882 *) SSL_get1_session() is like SSL_get_session(), but increments 8883 the reference count in the SSL_SESSION returned. 8884 [Geoff Thorpe <geoff@eu.c2.net>] 8885 8886 *) Fix for 'req': it was adding a null to request attributes. 8887 Also change the X509_LOOKUP and X509_INFO code to handle 8888 certificate auxiliary information. 8889 [Steve Henson] 8890 8891 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document 8892 the 'enc' command. 8893 [Steve Henson] 8894 8895 *) Add the possibility to add extra information to the memory leak 8896 detecting output, to form tracebacks, showing from where each 8897 allocation was originated: CRYPTO_push_info("constant string") adds 8898 the string plus current file name and line number to a per-thread 8899 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info() 8900 is like calling CYRPTO_pop_info() until the stack is empty. 8901 Also updated memory leak detection code to be multi-thread-safe. 8902 [Richard Levitte] 8903 8904 *) Add options -text and -noout to pkcs7 utility and delete the 8905 encryption options which never did anything. Update docs. 8906 [Steve Henson] 8907 8908 *) Add options to some of the utilities to allow the pass phrase 8909 to be included on either the command line (not recommended on 8910 OSes like Unix) or read from the environment. Update the 8911 manpages and fix a few bugs. 8912 [Steve Henson] 8913 8914 *) Add a few manpages for some of the openssl commands. 8915 [Steve Henson] 8916 8917 *) Fix the -revoke option in ca. It was freeing up memory twice, 8918 leaking and not finding already revoked certificates. 8919 [Steve Henson] 8920 8921 *) Extensive changes to support certificate auxiliary information. 8922 This involves the use of X509_CERT_AUX structure and X509_AUX 8923 functions. An X509_AUX function such as PEM_read_X509_AUX() 8924 can still read in a certificate file in the usual way but it 8925 will also read in any additional "auxiliary information". By 8926 doing things this way a fair degree of compatibility can be 8927 retained: existing certificates can have this information added 8928 using the new 'x509' options. 8929 8930 Current auxiliary information includes an "alias" and some trust 8931 settings. The trust settings will ultimately be used in enhanced 8932 certificate chain verification routines: currently a certificate 8933 can only be trusted if it is self signed and then it is trusted 8934 for all purposes. 8935 [Steve Henson] 8936 8937 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD). 8938 The problem was that one of the replacement routines had not been working 8939 since SSLeay releases. For now the offending routine has been replaced 8940 with non-optimised assembler. Even so, this now gives around 95% 8941 performance improvement for 1024 bit RSA signs. 8942 [Mark Cox] 8943 8944 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2 8945 handling. Most clients have the effective key size in bits equal to 8946 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key. 8947 A few however don't do this and instead use the size of the decrypted key 8948 to determine the RC2 key length and the AlgorithmIdentifier to determine 8949 the effective key length. In this case the effective key length can still 8950 be 40 bits but the key length can be 168 bits for example. This is fixed 8951 by manually forcing an RC2 key into the EVP_PKEY structure because the 8952 EVP code can't currently handle unusual RC2 key sizes: it always assumes 8953 the key length and effective key length are equal. 8954 [Steve Henson] 8955 8956 *) Add a bunch of functions that should simplify the creation of 8957 X509_NAME structures. Now you should be able to do: 8958 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0); 8959 and have it automatically work out the correct field type and fill in 8960 the structures. The more adventurous can try: 8961 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0); 8962 and it will (hopefully) work out the correct multibyte encoding. 8963 [Steve Henson] 8964 8965 *) Change the 'req' utility to use the new field handling and multibyte 8966 copy routines. Before the DN field creation was handled in an ad hoc 8967 way in req, ca, and x509 which was rather broken and didn't support 8968 BMPStrings or UTF8Strings. Since some software doesn't implement 8969 BMPStrings or UTF8Strings yet, they can be enabled using the config file 8970 using the dirstring_type option. See the new comment in the default 8971 openssl.cnf for more info. 8972 [Steve Henson] 8973 8974 *) Make crypto/rand/md_rand.c more robust: 8975 - Assure unique random numbers after fork(). 8976 - Make sure that concurrent threads access the global counter and 8977 md serializably so that we never lose entropy in them 8978 or use exactly the same state in multiple threads. 8979 Access to the large state is not always serializable because 8980 the additional locking could be a performance killer, and 8981 md should be large enough anyway. 8982 [Bodo Moeller] 8983 8984 *) New file apps/app_rand.c with commonly needed functionality 8985 for handling the random seed file. 8986 8987 Use the random seed file in some applications that previously did not: 8988 ca, 8989 dsaparam -genkey (which also ignored its '-rand' option), 8990 s_client, 8991 s_server, 8992 x509 (when signing). 8993 Except on systems with /dev/urandom, it is crucial to have a random 8994 seed file at least for key creation, DSA signing, and for DH exchanges; 8995 for RSA signatures we could do without one. 8996 8997 gendh and gendsa (unlike genrsa) used to read only the first byte 8998 of each file listed in the '-rand' option. The function as previously 8999 found in genrsa is now in app_rand.c and is used by all programs 9000 that support '-rand'. 9001 [Bodo Moeller] 9002 9003 *) In RAND_write_file, use mode 0600 for creating files; 9004 don't just chmod when it may be too late. 9005 [Bodo Moeller] 9006 9007 *) Report an error from X509_STORE_load_locations 9008 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed. 9009 [Bill Perry] 9010 9011 *) New function ASN1_mbstring_copy() this copies a string in either 9012 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format 9013 into an ASN1_STRING type. A mask of permissible types is passed 9014 and it chooses the "minimal" type to use or an error if not type 9015 is suitable. 9016 [Steve Henson] 9017 9018 *) Add function equivalents to the various macros in asn1.h. The old 9019 macros are retained with an M_ prefix. Code inside the library can 9020 use the M_ macros. External code (including the openssl utility) 9021 should *NOT* in order to be "shared library friendly". 9022 [Steve Henson] 9023 9024 *) Add various functions that can check a certificate's extensions 9025 to see if it usable for various purposes such as SSL client, 9026 server or S/MIME and CAs of these types. This is currently 9027 VERY EXPERIMENTAL but will ultimately be used for certificate chain 9028 verification. Also added a -purpose flag to x509 utility to 9029 print out all the purposes. 9030 [Steve Henson] 9031 9032 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated 9033 functions. 9034 [Steve Henson] 9035 9036 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search 9037 for, obtain and decode and extension and obtain its critical flag. 9038 This allows all the necessary extension code to be handled in a 9039 single function call. 9040 [Steve Henson] 9041 9042 *) RC4 tune-up featuring 30-40% performance improvement on most RISC 9043 platforms. See crypto/rc4/rc4_enc.c for further details. 9044 [Andy Polyakov] 9045 9046 *) New -noout option to asn1parse. This causes no output to be produced 9047 its main use is when combined with -strparse and -out to extract data 9048 from a file (which may not be in ASN.1 format). 9049 [Steve Henson] 9050 9051 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer 9052 when producing the local key id. 9053 [Richard Levitte <levitte@stacken.kth.se>] 9054 9055 *) New option -dhparam in s_server. This allows a DH parameter file to be 9056 stated explicitly. If it is not stated then it tries the first server 9057 certificate file. The previous behaviour hard coded the filename 9058 "server.pem". 9059 [Steve Henson] 9060 9061 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow 9062 a public key to be input or output. For example: 9063 openssl rsa -in key.pem -pubout -out pubkey.pem 9064 Also added necessary DSA public key functions to handle this. 9065 [Steve Henson] 9066 9067 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained 9068 in the message. This was handled by allowing 9069 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it. 9070 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>] 9071 9072 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null 9073 to the end of the strings whereas this didn't. This would cause problems 9074 if strings read with d2i_ASN1_bytes() were later modified. 9075 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>] 9076 9077 *) Fix for base64 decode bug. When a base64 bio reads only one line of 9078 data and it contains EOF it will end up returning an error. This is 9079 caused by input 46 bytes long. The cause is due to the way base64 9080 BIOs find the start of base64 encoded data. They do this by trying a 9081 trial decode on each line until they find one that works. When they 9082 do a flag is set and it starts again knowing it can pass all the 9083 data directly through the decoder. Unfortunately it doesn't reset 9084 the context it uses. This means that if EOF is reached an attempt 9085 is made to pass two EOFs through the context and this causes the 9086 resulting error. This can also cause other problems as well. As is 9087 usual with these problems it takes *ages* to find and the fix is 9088 trivial: move one line. 9089 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ] 9090 9091 *) Ugly workaround to get s_client and s_server working under Windows. The 9092 old code wouldn't work because it needed to select() on sockets and the 9093 tty (for keypresses and to see if data could be written). Win32 only 9094 supports select() on sockets so we select() with a 1s timeout on the 9095 sockets and then see if any characters are waiting to be read, if none 9096 are present then we retry, we also assume we can always write data to 9097 the tty. This isn't nice because the code then blocks until we've 9098 received a complete line of data and it is effectively polling the 9099 keyboard at 1s intervals: however it's quite a bit better than not 9100 working at all :-) A dedicated Windows application might handle this 9101 with an event loop for example. 9102 [Steve Henson] 9103 9104 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign 9105 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions 9106 will be called when RSA_sign() and RSA_verify() are used. This is useful 9107 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available. 9108 For this to work properly RSA_public_decrypt() and RSA_private_encrypt() 9109 should *not* be used: RSA_sign() and RSA_verify() must be used instead. 9110 This necessitated the support of an extra signature type NID_md5_sha1 9111 for SSL signatures and modifications to the SSL library to use it instead 9112 of calling RSA_public_decrypt() and RSA_private_encrypt(). 9113 [Steve Henson] 9114 9115 *) Add new -verify -CAfile and -CApath options to the crl program, these 9116 will lookup a CRL issuers certificate and verify the signature in a 9117 similar way to the verify program. Tidy up the crl program so it 9118 no longer accesses structures directly. Make the ASN1 CRL parsing a bit 9119 less strict. It will now permit CRL extensions even if it is not 9120 a V2 CRL: this will allow it to tolerate some broken CRLs. 9121 [Steve Henson] 9122 9123 *) Initialize all non-automatic variables each time one of the openssl 9124 sub-programs is started (this is necessary as they may be started 9125 multiple times from the "OpenSSL>" prompt). 9126 [Lennart Bang, Bodo Moeller] 9127 9128 *) Preliminary compilation option RSA_NULL which disables RSA crypto without 9129 removing all other RSA functionality (this is what NO_RSA does). This 9130 is so (for example) those in the US can disable those operations covered 9131 by the RSA patent while allowing storage and parsing of RSA keys and RSA 9132 key generation. 9133 [Steve Henson] 9134 9135 *) Non-copying interface to BIO pairs. 9136 (still largely untested) 9137 [Bodo Moeller] 9138 9139 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive 9140 ASCII string. This was handled independently in various places before. 9141 [Steve Henson] 9142 9143 *) New functions UTF8_getc() and UTF8_putc() that parse and generate 9144 UTF8 strings a character at a time. 9145 [Steve Henson] 9146 9147 *) Use client_version from client hello to select the protocol 9148 (s23_srvr.c) and for RSA client key exchange verification 9149 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications. 9150 [Bodo Moeller] 9151 9152 *) Add various utility functions to handle SPKACs, these were previously 9153 handled by poking round in the structure internals. Added new function 9154 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to 9155 print, verify and generate SPKACs. Based on an original idea from 9156 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified. 9157 [Steve Henson] 9158 9159 *) RIPEMD160 is operational on all platforms and is back in 'make test'. 9160 [Andy Polyakov] 9161 9162 *) Allow the config file extension section to be overwritten on the 9163 command line. Based on an original idea from Massimiliano Pala 9164 <madwolf@comune.modena.it>. The new option is called -extensions 9165 and can be applied to ca, req and x509. Also -reqexts to override 9166 the request extensions in req and -crlexts to override the crl extensions 9167 in ca. 9168 [Steve Henson] 9169 9170 *) Add new feature to the SPKAC handling in ca. Now you can include 9171 the same field multiple times by preceding it by "XXXX." for example: 9172 1.OU="Unit name 1" 9173 2.OU="Unit name 2" 9174 this is the same syntax as used in the req config file. 9175 [Steve Henson] 9176 9177 *) Allow certificate extensions to be added to certificate requests. These 9178 are specified in a 'req_extensions' option of the req section of the 9179 config file. They can be printed out with the -text option to req but 9180 are otherwise ignored at present. 9181 [Steve Henson] 9182 9183 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first 9184 data read consists of only the final block it would not decrypted because 9185 EVP_CipherUpdate() would correctly report zero bytes had been decrypted. 9186 A misplaced 'break' also meant the decrypted final block might not be 9187 copied until the next read. 9188 [Steve Henson] 9189 9190 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added 9191 a few extra parameters to the DH structure: these will be useful if 9192 for example we want the value of 'q' or implement X9.42 DH. 9193 [Steve Henson] 9194 9195 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and 9196 provides hooks that allow the default DSA functions or functions on a 9197 "per key" basis to be replaced. This allows hardware acceleration and 9198 hardware key storage to be handled without major modification to the 9199 library. Also added low level modexp hooks and CRYPTO_EX structure and 9200 associated functions. 9201 [Steve Henson] 9202 9203 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO 9204 as "read only": it can't be written to and the buffer it points to will 9205 not be freed. Reading from a read only BIO is much more efficient than 9206 a normal memory BIO. This was added because there are several times when 9207 an area of memory needs to be read from a BIO. The previous method was 9208 to create a memory BIO and write the data to it, this results in two 9209 copies of the data and an O(n^2) reading algorithm. There is a new 9210 function BIO_new_mem_buf() which creates a read only memory BIO from 9211 an area of memory. Also modified the PKCS#7 routines to use read only 9212 memory BIOs. 9213 [Steve Henson] 9214 9215 *) Bugfix: ssl23_get_client_hello did not work properly when called in 9216 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of 9217 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read, 9218 but a retry condition occured while trying to read the rest. 9219 [Bodo Moeller] 9220 9221 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as 9222 NID_pkcs7_encrypted by default: this was wrong since this should almost 9223 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle 9224 the encrypted data type: this is a more sensible place to put it and it 9225 allows the PKCS#12 code to be tidied up that duplicated this 9226 functionality. 9227 [Steve Henson] 9228 9229 *) Changed obj_dat.pl script so it takes its input and output files on 9230 the command line. This should avoid shell escape redirection problems 9231 under Win32. 9232 [Steve Henson] 9233 9234 *) Initial support for certificate extension requests, these are included 9235 in things like Xenroll certificate requests. Included functions to allow 9236 extensions to be obtained and added. 9237 [Steve Henson] 9238 9239 *) -crlf option to s_client and s_server for sending newlines as 9240 CRLF (as required by many protocols). 9241 [Bodo Moeller] 9242 9243 Changes between 0.9.3a and 0.9.4 [09 Aug 1999] 9244 9245 *) Install libRSAglue.a when OpenSSL is built with RSAref. 9246 [Ralf S. Engelschall] 9247 9248 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency. 9249 [Andrija Antonijevic <TheAntony2@bigfoot.com>] 9250 9251 *) Fix -startdate and -enddate (which was missing) arguments to 'ca' 9252 program. 9253 [Steve Henson] 9254 9255 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as 9256 DH parameters/keys (q is lost during that conversion, but the resulting 9257 DH parameters contain its length). 9258 9259 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is 9260 much faster than DH_generate_parameters (which creates parameters 9261 where p = 2*q + 1), and also the smaller q makes DH computations 9262 much more efficient (160-bit exponentiation instead of 1024-bit 9263 exponentiation); so this provides a convenient way to support DHE 9264 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of 9265 utter importance to use 9266 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 9267 or 9268 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); 9269 when such DH parameters are used, because otherwise small subgroup 9270 attacks may become possible! 9271 [Bodo Moeller] 9272 9273 *) Avoid memory leak in i2d_DHparams. 9274 [Bodo Moeller] 9275 9276 *) Allow the -k option to be used more than once in the enc program: 9277 this allows the same encrypted message to be read by multiple recipients. 9278 [Steve Henson] 9279 9280 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts 9281 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then 9282 it will always use the numerical form of the OID, even if it has a short 9283 or long name. 9284 [Steve Henson] 9285 9286 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp 9287 method only got called if p,q,dmp1,dmq1,iqmp components were present, 9288 otherwise bn_mod_exp was called. In the case of hardware keys for example 9289 no private key components need be present and it might store extra data 9290 in the RSA structure, which cannot be accessed from bn_mod_exp. 9291 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for 9292 private key operations. 9293 [Steve Henson] 9294 9295 *) Added support for SPARC Linux. 9296 [Andy Polyakov] 9297 9298 *) pem_password_cb function type incompatibly changed from 9299 typedef int pem_password_cb(char *buf, int size, int rwflag); 9300 to 9301 ....(char *buf, int size, int rwflag, void *userdata); 9302 so that applications can pass data to their callbacks: 9303 The PEM[_ASN1]_{read,write}... functions and macros now take an 9304 additional void * argument, which is just handed through whenever 9305 the password callback is called. 9306 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller] 9307 9308 New function SSL_CTX_set_default_passwd_cb_userdata. 9309 9310 Compatibility note: As many C implementations push function arguments 9311 onto the stack in reverse order, the new library version is likely to 9312 interoperate with programs that have been compiled with the old 9313 pem_password_cb definition (PEM_whatever takes some data that 9314 happens to be on the stack as its last argument, and the callback 9315 just ignores this garbage); but there is no guarantee whatsoever that 9316 this will work. 9317 9318 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=... 9319 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused 9320 problems not only on Windows, but also on some Unix platforms. 9321 To avoid problematic command lines, these definitions are now in an 9322 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl 9323 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds). 9324 [Bodo Moeller] 9325 9326 *) MIPS III/IV assembler module is reimplemented. 9327 [Andy Polyakov] 9328 9329 *) More DES library cleanups: remove references to srand/rand and 9330 delete an unused file. 9331 [Ulf M�ller] 9332 9333 *) Add support for the the free Netwide assembler (NASM) under Win32, 9334 since not many people have MASM (ml) and it can be hard to obtain. 9335 This is currently experimental but it seems to work OK and pass all 9336 the tests. Check out INSTALL.W32 for info. 9337 [Steve Henson] 9338 9339 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections 9340 without temporary keys kept an extra copy of the server key, 9341 and connections with temporary keys did not free everything in case 9342 of an error. 9343 [Bodo Moeller] 9344 9345 *) New function RSA_check_key and new openssl rsa option -check 9346 for verifying the consistency of RSA keys. 9347 [Ulf Moeller, Bodo Moeller] 9348 9349 *) Various changes to make Win32 compile work: 9350 1. Casts to avoid "loss of data" warnings in p5_crpt2.c 9351 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned 9352 comparison" warnings. 9353 3. Add sk_<TYPE>_sort to DEF file generator and do make update. 9354 [Steve Henson] 9355 9356 *) Add a debugging option to PKCS#5 v2 key generation function: when 9357 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and 9358 derived keys are printed to stderr. 9359 [Steve Henson] 9360 9361 *) Copy the flags in ASN1_STRING_dup(). 9362 [Roman E. Pavlov <pre@mo.msk.ru>] 9363 9364 *) The x509 application mishandled signing requests containing DSA 9365 keys when the signing key was also DSA and the parameters didn't match. 9366 9367 It was supposed to omit the parameters when they matched the signing key: 9368 the verifying software was then supposed to automatically use the CA's 9369 parameters if they were absent from the end user certificate. 9370 9371 Omitting parameters is no longer recommended. The test was also 9372 the wrong way round! This was probably due to unusual behaviour in 9373 EVP_cmp_parameters() which returns 1 if the parameters match. 9374 This meant that parameters were omitted when they *didn't* match and 9375 the certificate was useless. Certificates signed with 'ca' didn't have 9376 this bug. 9377 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>] 9378 9379 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems. 9380 The interface is as follows: 9381 Applications can use 9382 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(), 9383 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop(); 9384 "off" is now the default. 9385 The library internally uses 9386 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(), 9387 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on() 9388 to disable memory-checking temporarily. 9389 9390 Some inconsistent states that previously were possible (and were 9391 even the default) are now avoided. 9392 9393 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time 9394 with each memory chunk allocated; this is occasionally more helpful 9395 than just having a counter. 9396 9397 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID. 9398 9399 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future 9400 extensions. 9401 [Bodo Moeller] 9402 9403 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX), 9404 which largely parallels "options", but is for changing API behaviour, 9405 whereas "options" are about protocol behaviour. 9406 Initial "mode" flags are: 9407 9408 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when 9409 a single record has been written. 9410 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write 9411 retries use the same buffer location. 9412 (But all of the contents must be 9413 copied!) 9414 [Bodo Moeller] 9415 9416 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options 9417 worked. 9418 9419 *) Fix problems with no-hmac etc. 9420 [Ulf M�ller, pointed out by Brian Wellington <bwelling@tislabs.com>] 9421 9422 *) New functions RSA_get_default_method(), RSA_set_method() and 9423 RSA_get_method(). These allows replacement of RSA_METHODs without having 9424 to mess around with the internals of an RSA structure. 9425 [Steve Henson] 9426 9427 *) Fix memory leaks in DSA_do_sign and DSA_is_prime. 9428 Also really enable memory leak checks in openssl.c and in some 9429 test programs. 9430 [Chad C. Mulligan, Bodo Moeller] 9431 9432 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess 9433 up the length of negative integers. This has now been simplified to just 9434 store the length when it is first determined and use it later, rather 9435 than trying to keep track of where data is copied and updating it to 9436 point to the end. 9437 [Steve Henson, reported by Brien Wheeler 9438 <bwheeler@authentica-security.com>] 9439 9440 *) Add a new function PKCS7_signatureVerify. This allows the verification 9441 of a PKCS#7 signature but with the signing certificate passed to the 9442 function itself. This contrasts with PKCS7_dataVerify which assumes the 9443 certificate is present in the PKCS#7 structure. This isn't always the 9444 case: certificates can be omitted from a PKCS#7 structure and be 9445 distributed by "out of band" means (such as a certificate database). 9446 [Steve Henson] 9447 9448 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the 9449 function prototypes in pem.h, also change util/mkdef.pl to add the 9450 necessary function names. 9451 [Steve Henson] 9452 9453 *) mk1mf.pl (used by Windows builds) did not properly read the 9454 options set by Configure in the top level Makefile, and Configure 9455 was not even able to write more than one option correctly. 9456 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended. 9457 [Bodo Moeller] 9458 9459 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config 9460 file to be loaded from a BIO or FILE pointer. The BIO version will 9461 for example allow memory BIOs to contain config info. 9462 [Steve Henson] 9463 9464 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS. 9465 Whoever hopes to achieve shared-library compatibility across versions 9466 must use this, not the compile-time macro. 9467 (Exercise 0.9.4: Which is the minimum library version required by 9468 such programs?) 9469 Note: All this applies only to multi-threaded programs, others don't 9470 need locks. 9471 [Bodo Moeller] 9472 9473 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests 9474 through a BIO pair triggered the default case, i.e. 9475 SSLerr(...,SSL_R_UNKNOWN_STATE). 9476 [Bodo Moeller] 9477 9478 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications 9479 can use the SSL library even if none of the specific BIOs is 9480 appropriate. 9481 [Bodo Moeller] 9482 9483 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value 9484 for the encoded length. 9485 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>] 9486 9487 *) Add initial documentation of the X509V3 functions. 9488 [Steve Henson] 9489 9490 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and 9491 PEM_write_bio_PKCS8PrivateKey() that are equivalent to 9492 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more 9493 secure PKCS#8 private key format with a high iteration count. 9494 [Steve Henson] 9495 9496 *) Fix determination of Perl interpreter: A perl or perl5 9497 _directory_ in $PATH was also accepted as the interpreter. 9498 [Ralf S. Engelschall] 9499 9500 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking 9501 wrong with it but it was very old and did things like calling 9502 PEM_ASN1_read() directly and used MD5 for the hash not to mention some 9503 unusual formatting. 9504 [Steve Henson] 9505 9506 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed 9507 to use the new extension code. 9508 [Steve Henson] 9509 9510 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c 9511 with macros. This should make it easier to change their form, add extra 9512 arguments etc. Fix a few PEM prototypes which didn't have cipher as a 9513 constant. 9514 [Steve Henson] 9515 9516 *) Add to configuration table a new entry that can specify an alternative 9517 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep, 9518 according to Mark Crispin <MRC@Panda.COM>. 9519 [Bodo Moeller] 9520 9521#if 0 9522 *) DES CBC did not update the IV. Weird. 9523 [Ben Laurie] 9524#else 9525 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does. 9526 Changing the behaviour of the former might break existing programs -- 9527 where IV updating is needed, des_ncbc_encrypt can be used. 9528#endif 9529 9530 *) When bntest is run from "make test" it drives bc to check its 9531 calculations, as well as internally checking them. If an internal check 9532 fails, it needs to cause bc to give a non-zero result or make test carries 9533 on without noticing the failure. Fixed. 9534 [Ben Laurie] 9535 9536 *) DES library cleanups. 9537 [Ulf M�ller] 9538 9539 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be 9540 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit 9541 ciphers. NOTE: although the key derivation function has been verified 9542 against some published test vectors it has not been extensively tested 9543 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use 9544 of v2.0. 9545 [Steve Henson] 9546 9547 *) Instead of "mkdir -p", which is not fully portable, use new 9548 Perl script "util/mkdir-p.pl". 9549 [Bodo Moeller] 9550 9551 *) Rewrite the way password based encryption (PBE) is handled. It used to 9552 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter 9553 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms 9554 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now 9555 the 'parameter' field of the AlgorithmIdentifier is passed to the 9556 underlying key generation function so it must do its own ASN1 parsing. 9557 This has also changed the EVP_PBE_CipherInit() function which now has a 9558 'parameter' argument instead of literal salt and iteration count values 9559 and the function EVP_PBE_ALGOR_CipherInit() has been deleted. 9560 [Steve Henson] 9561 9562 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms 9563 and PKCS#8 functionality. New 'pkcs8' application linked to openssl. 9564 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE 9565 KEY" because this clashed with PKCS#8 unencrypted string. Since this 9566 value was just used as a "magic string" and not used directly its 9567 value doesn't matter. 9568 [Steve Henson] 9569 9570 *) Introduce some semblance of const correctness to BN. Shame C doesn't 9571 support mutable. 9572 [Ben Laurie] 9573 9574 *) "linux-sparc64" configuration (ultrapenguin). 9575 [Ray Miller <ray.miller@oucs.ox.ac.uk>] 9576 "linux-sparc" configuration. 9577 [Christian Forster <fo@hawo.stw.uni-erlangen.de>] 9578 9579 *) config now generates no-xxx options for missing ciphers. 9580 [Ulf M�ller] 9581 9582 *) Support the EBCDIC character set (work in progress). 9583 File ebcdic.c not yet included because it has a different license. 9584 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] 9585 9586 *) Support BS2000/OSD-POSIX. 9587 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>] 9588 9589 *) Make callbacks for key generation use void * instead of char *. 9590 [Ben Laurie] 9591 9592 *) Make S/MIME samples compile (not yet tested). 9593 [Ben Laurie] 9594 9595 *) Additional typesafe stacks. 9596 [Ben Laurie] 9597 9598 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x). 9599 [Bodo Moeller] 9600 9601 9602 Changes between 0.9.3 and 0.9.3a [29 May 1999] 9603 9604 *) New configuration variant "sco5-gcc". 9605 9606 *) Updated some demos. 9607 [Sean O Riordain, Wade Scholine] 9608 9609 *) Add missing BIO_free at exit of pkcs12 application. 9610 [Wu Zhigang] 9611 9612 *) Fix memory leak in conf.c. 9613 [Steve Henson] 9614 9615 *) Updates for Win32 to assembler version of MD5. 9616 [Steve Henson] 9617 9618 *) Set #! path to perl in apps/der_chop to where we found it 9619 instead of using a fixed path. 9620 [Bodo Moeller] 9621 9622 *) SHA library changes for irix64-mips4-cc. 9623 [Andy Polyakov] 9624 9625 *) Improvements for VMS support. 9626 [Richard Levitte] 9627 9628 9629 Changes between 0.9.2b and 0.9.3 [24 May 1999] 9630 9631 *) Bignum library bug fix. IRIX 6 passes "make test" now! 9632 This also avoids the problems with SC4.2 and unpatched SC5. 9633 [Andy Polyakov <appro@fy.chalmers.se>] 9634 9635 *) New functions sk_num, sk_value and sk_set to replace the previous macros. 9636 These are required because of the typesafe stack would otherwise break 9637 existing code. If old code used a structure member which used to be STACK 9638 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with 9639 sk_num or sk_value it would produce an error because the num, data members 9640 are not present in STACK_OF. Now it just produces a warning. sk_set 9641 replaces the old method of assigning a value to sk_value 9642 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code 9643 that does this will no longer work (and should use sk_set instead) but 9644 this could be regarded as a "questionable" behaviour anyway. 9645 [Steve Henson] 9646 9647 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now 9648 correctly handle encrypted S/MIME data. 9649 [Steve Henson] 9650 9651 *) Change type of various DES function arguments from des_cblock 9652 (which means, in function argument declarations, pointer to char) 9653 to des_cblock * (meaning pointer to array with 8 char elements), 9654 which allows the compiler to do more typechecking; it was like 9655 that back in SSLeay, but with lots of ugly casts. 9656 9657 Introduce new type const_des_cblock. 9658 [Bodo Moeller] 9659 9660 *) Reorganise the PKCS#7 library and get rid of some of the more obvious 9661 problems: find RecipientInfo structure that matches recipient certificate 9662 and initialise the ASN1 structures properly based on passed cipher. 9663 [Steve Henson] 9664 9665 *) Belatedly make the BN tests actually check the results. 9666 [Ben Laurie] 9667 9668 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion 9669 to and from BNs: it was completely broken. New compilation option 9670 NEG_PUBKEY_BUG to allow for some broken certificates that encode public 9671 key elements as negative integers. 9672 [Steve Henson] 9673 9674 *) Reorganize and speed up MD5. 9675 [Andy Polyakov <appro@fy.chalmers.se>] 9676 9677 *) VMS support. 9678 [Richard Levitte <richard@levitte.org>] 9679 9680 *) New option -out to asn1parse to allow the parsed structure to be 9681 output to a file. This is most useful when combined with the -strparse 9682 option to examine the output of things like OCTET STRINGS. 9683 [Steve Henson] 9684 9685 *) Make SSL library a little more fool-proof by not requiring any longer 9686 that SSL_set_{accept,connect}_state be called before 9687 SSL_{accept,connect} may be used (SSL_set_..._state is omitted 9688 in many applications because usually everything *appeared* to work as 9689 intended anyway -- now it really works as intended). 9690 [Bodo Moeller] 9691 9692 *) Move openssl.cnf out of lib/. 9693 [Ulf M�ller] 9694 9695 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall 9696 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes 9697 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+ 9698 [Ralf S. Engelschall] 9699 9700 *) Various fixes to the EVP and PKCS#7 code. It may now be able to 9701 handle PKCS#7 enveloped data properly. 9702 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve] 9703 9704 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of 9705 copying pointers. The cert_st handling is changed by this in 9706 various ways (and thus what used to be known as ctx->default_cert 9707 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert 9708 any longer when s->cert does not give us what we need). 9709 ssl_cert_instantiate becomes obsolete by this change. 9710 As soon as we've got the new code right (possibly it already is?), 9711 we have solved a couple of bugs of the earlier code where s->cert 9712 was used as if it could not have been shared with other SSL structures. 9713 9714 Note that using the SSL API in certain dirty ways now will result 9715 in different behaviour than observed with earlier library versions: 9716 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx) 9717 does not influence s as it used to. 9718 9719 In order to clean up things more thoroughly, inside SSL_SESSION 9720 we don't use CERT any longer, but a new structure SESS_CERT 9721 that holds per-session data (if available); currently, this is 9722 the peer's certificate chain and, for clients, the server's certificate 9723 and temporary key. CERT holds only those values that can have 9724 meaningful defaults in an SSL_CTX. 9725 [Bodo Moeller] 9726 9727 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure 9728 from the internal representation. Various PKCS#7 fixes: remove some 9729 evil casts and set the enc_dig_alg field properly based on the signing 9730 key type. 9731 [Steve Henson] 9732 9733 *) Allow PKCS#12 password to be set from the command line or the 9734 environment. Let 'ca' get its config file name from the environment 9735 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req' 9736 and 'x509'). 9737 [Steve Henson] 9738 9739 *) Allow certificate policies extension to use an IA5STRING for the 9740 organization field. This is contrary to the PKIX definition but 9741 VeriSign uses it and IE5 only recognises this form. Document 'x509' 9742 extension option. 9743 [Steve Henson] 9744 9745 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic, 9746 without disallowing inline assembler and the like for non-pedantic builds. 9747 [Ben Laurie] 9748 9749 *) Support Borland C++ builder. 9750 [Janez Jere <jj@void.si>, modified by Ulf M�ller] 9751 9752 *) Support Mingw32. 9753 [Ulf M�ller] 9754 9755 *) SHA-1 cleanups and performance enhancements. 9756 [Andy Polyakov <appro@fy.chalmers.se>] 9757 9758 *) Sparc v8plus assembler for the bignum library. 9759 [Andy Polyakov <appro@fy.chalmers.se>] 9760 9761 *) Accept any -xxx and +xxx compiler options in Configure. 9762 [Ulf M�ller] 9763 9764 *) Update HPUX configuration. 9765 [Anonymous] 9766 9767 *) Add missing sk_<type>_unshift() function to safestack.h 9768 [Ralf S. Engelschall] 9769 9770 *) New function SSL_CTX_use_certificate_chain_file that sets the 9771 "extra_cert"s in addition to the certificate. (This makes sense 9772 only for "PEM" format files, as chains as a whole are not 9773 DER-encoded.) 9774 [Bodo Moeller] 9775 9776 *) Support verify_depth from the SSL API. 9777 x509_vfy.c had what can be considered an off-by-one-error: 9778 Its depth (which was not part of the external interface) 9779 was actually counting the number of certificates in a chain; 9780 now it really counts the depth. 9781 [Bodo Moeller] 9782 9783 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used 9784 instead of X509err, which often resulted in confusing error 9785 messages since the error codes are not globally unique 9786 (e.g. an alleged error in ssl3_accept when a certificate 9787 didn't match the private key). 9788 9789 *) New function SSL_CTX_set_session_id_context that allows to set a default 9790 value (so that you don't need SSL_set_session_id_context for each 9791 connection using the SSL_CTX). 9792 [Bodo Moeller] 9793 9794 *) OAEP decoding bug fix. 9795 [Ulf M�ller] 9796 9797 *) Support INSTALL_PREFIX for package builders, as proposed by 9798 David Harris. 9799 [Bodo Moeller] 9800 9801 *) New Configure options "threads" and "no-threads". For systems 9802 where the proper compiler options are known (currently Solaris 9803 and Linux), "threads" is the default. 9804 [Bodo Moeller] 9805 9806 *) New script util/mklink.pl as a faster substitute for util/mklink.sh. 9807 [Bodo Moeller] 9808 9809 *) Install various scripts to $(OPENSSLDIR)/misc, not to 9810 $(INSTALLTOP)/bin -- they shouldn't clutter directories 9811 such as /usr/local/bin. 9812 [Bodo Moeller] 9813 9814 *) "make linux-shared" to build shared libraries. 9815 [Niels Poppe <niels@netbox.org>] 9816 9817 *) New Configure option no-<cipher> (rsa, idea, rc5, ...). 9818 [Ulf M�ller] 9819 9820 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for 9821 extension adding in x509 utility. 9822 [Steve Henson] 9823 9824 *) Remove NOPROTO sections and error code comments. 9825 [Ulf M�ller] 9826 9827 *) Partial rewrite of the DEF file generator to now parse the ANSI 9828 prototypes. 9829 [Steve Henson] 9830 9831 *) New Configure options --prefix=DIR and --openssldir=DIR. 9832 [Ulf M�ller] 9833 9834 *) Complete rewrite of the error code script(s). It is all now handled 9835 by one script at the top level which handles error code gathering, 9836 header rewriting and C source file generation. It should be much better 9837 than the old method: it now uses a modified version of Ulf's parser to 9838 read the ANSI prototypes in all header files (thus the old K&R definitions 9839 aren't needed for error creation any more) and do a better job of 9840 translating function codes into names. The old 'ASN1 error code imbedded 9841 in a comment' is no longer necessary and it doesn't use .err files which 9842 have now been deleted. Also the error code call doesn't have to appear all 9843 on one line (which resulted in some large lines...). 9844 [Steve Henson] 9845 9846 *) Change #include filenames from <foo.h> to <openssl/foo.h>. 9847 [Bodo Moeller] 9848 9849 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return 9850 0 (which usually indicates a closed connection), but continue reading. 9851 [Bodo Moeller] 9852 9853 *) Fix some race conditions. 9854 [Bodo Moeller] 9855 9856 *) Add support for CRL distribution points extension. Add Certificate 9857 Policies and CRL distribution points documentation. 9858 [Steve Henson] 9859 9860 *) Move the autogenerated header file parts to crypto/opensslconf.h. 9861 [Ulf M�ller] 9862 9863 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of 9864 8 of keying material. Merlin has also confirmed interop with this fix 9865 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0. 9866 [Merlin Hughes <merlin@baltimore.ie>] 9867 9868 *) Fix lots of warnings. 9869 [Richard Levitte <levitte@stacken.kth.se>] 9870 9871 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if 9872 the directory spec didn't end with a LIST_SEPARATOR_CHAR. 9873 [Richard Levitte <levitte@stacken.kth.se>] 9874 9875 *) Fix problems with sizeof(long) == 8. 9876 [Andy Polyakov <appro@fy.chalmers.se>] 9877 9878 *) Change functions to ANSI C. 9879 [Ulf M�ller] 9880 9881 *) Fix typos in error codes. 9882 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf M�ller] 9883 9884 *) Remove defunct assembler files from Configure. 9885 [Ulf M�ller] 9886 9887 *) SPARC v8 assembler BIGNUM implementation. 9888 [Andy Polyakov <appro@fy.chalmers.se>] 9889 9890 *) Support for Certificate Policies extension: both print and set. 9891 Various additions to support the r2i method this uses. 9892 [Steve Henson] 9893 9894 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could 9895 return a const string when you are expecting an allocated buffer. 9896 [Ben Laurie] 9897 9898 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE 9899 types DirectoryString and DisplayText. 9900 [Steve Henson] 9901 9902 *) Add code to allow r2i extensions to access the configuration database, 9903 add an LHASH database driver and add several ctx helper functions. 9904 [Steve Henson] 9905 9906 *) Fix an evil bug in bn_expand2() which caused various BN functions to 9907 fail when they extended the size of a BIGNUM. 9908 [Steve Henson] 9909 9910 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to 9911 support typesafe stack. 9912 [Steve Henson] 9913 9914 *) Fix typo in SSL_[gs]et_options(). 9915 [Nils Frostberg <nils@medcom.se>] 9916 9917 *) Delete various functions and files that belonged to the (now obsolete) 9918 old X509V3 handling code. 9919 [Steve Henson] 9920 9921 *) New Configure option "rsaref". 9922 [Ulf M�ller] 9923 9924 *) Don't auto-generate pem.h. 9925 [Bodo Moeller] 9926 9927 *) Introduce type-safe ASN.1 SETs. 9928 [Ben Laurie] 9929 9930 *) Convert various additional casted stacks to type-safe STACK_OF() variants. 9931 [Ben Laurie, Ralf S. Engelschall, Steve Henson] 9932 9933 *) Introduce type-safe STACKs. This will almost certainly break lots of code 9934 that links with OpenSSL (well at least cause lots of warnings), but fear 9935 not: the conversion is trivial, and it eliminates loads of evil casts. A 9936 few STACKed things have been converted already. Feel free to convert more. 9937 In the fullness of time, I'll do away with the STACK type altogether. 9938 [Ben Laurie] 9939 9940 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate 9941 specified in <certfile> by updating the entry in the index.txt file. 9942 This way one no longer has to edit the index.txt file manually for 9943 revoking a certificate. The -revoke option does the gory details now. 9944 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall] 9945 9946 *) Fix `openssl crl -noout -text' combination where `-noout' killed the 9947 `-text' option at all and this way the `-noout -text' combination was 9948 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'. 9949 [Ralf S. Engelschall] 9950 9951 *) Make sure a corresponding plain text error message exists for the 9952 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a 9953 verify callback function determined that a certificate was revoked. 9954 [Ralf S. Engelschall] 9955 9956 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for 9957 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test 9958 all available cipers including rc5, which was forgotten until now. 9959 In order to let the testing shell script know which algorithms 9960 are available, a new (up to now undocumented) command 9961 "openssl list-cipher-commands" is used. 9962 [Bodo Moeller] 9963 9964 *) Bugfix: s_client occasionally would sleep in select() when 9965 it should have checked SSL_pending() first. 9966 [Bodo Moeller] 9967 9968 *) New functions DSA_do_sign and DSA_do_verify to provide access to 9969 the raw DSA values prior to ASN.1 encoding. 9970 [Ulf M�ller] 9971 9972 *) Tweaks to Configure 9973 [Niels Poppe <niels@netbox.org>] 9974 9975 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support, 9976 yet... 9977 [Steve Henson] 9978 9979 *) New variables $(RANLIB) and $(PERL) in the Makefiles. 9980 [Ulf M�ller] 9981 9982 *) New config option to avoid instructions that are illegal on the 80386. 9983 The default code is faster, but requires at least a 486. 9984 [Ulf M�ller] 9985 9986 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and 9987 SSL2_SERVER_VERSION (not used at all) macros, which are now the 9988 same as SSL2_VERSION anyway. 9989 [Bodo Moeller] 9990 9991 *) New "-showcerts" option for s_client. 9992 [Bodo Moeller] 9993 9994 *) Still more PKCS#12 integration. Add pkcs12 application to openssl 9995 application. Various cleanups and fixes. 9996 [Steve Henson] 9997 9998 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and 9999 modify error routines to work internally. Add error codes and PBE init 10000 to library startup routines. 10001 [Steve Henson] 10002 10003 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and 10004 packing functions to asn1 and evp. Changed function names and error 10005 codes along the way. 10006 [Steve Henson] 10007 10008 *) PKCS12 integration: and so it begins... First of several patches to 10009 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12 10010 objects to objects.h 10011 [Steve Henson] 10012 10013 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1 10014 and display support for Thawte strong extranet extension. 10015 [Steve Henson] 10016 10017 *) Add LinuxPPC support. 10018 [Jeff Dubrule <igor@pobox.org>] 10019 10020 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to 10021 bn_div_words in alpha.s. 10022 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie] 10023 10024 *) Make sure the RSA OAEP test is skipped under -DRSAref because 10025 OAEP isn't supported when OpenSSL is built with RSAref. 10026 [Ulf Moeller <ulf@fitug.de>] 10027 10028 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h 10029 so they no longer are missing under -DNOPROTO. 10030 [Soren S. Jorvang <soren@t.dk>] 10031 10032 10033 Changes between 0.9.1c and 0.9.2b [22 Mar 1999] 10034 10035 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still 10036 doesn't work when the session is reused. Coming soon! 10037 [Ben Laurie] 10038 10039 *) Fix a security hole, that allows sessions to be reused in the wrong 10040 context thus bypassing client cert protection! All software that uses 10041 client certs and session caches in multiple contexts NEEDS PATCHING to 10042 allow session reuse! A fuller solution is in the works. 10043 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)] 10044 10045 *) Some more source tree cleanups (removed obsolete files 10046 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed 10047 permission on "config" script to be executable) and a fix for the INSTALL 10048 document. 10049 [Ulf Moeller <ulf@fitug.de>] 10050 10051 *) Remove some legacy and erroneous uses of malloc, free instead of 10052 Malloc, Free. 10053 [Lennart Bang <lob@netstream.se>, with minor changes by Steve] 10054 10055 *) Make rsa_oaep_test return non-zero on error. 10056 [Ulf Moeller <ulf@fitug.de>] 10057 10058 *) Add support for native Solaris shared libraries. Configure 10059 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice 10060 if someone would make that last step automatic. 10061 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>] 10062 10063 *) ctx_size was not built with the right compiler during "make links". Fixed. 10064 [Ben Laurie] 10065 10066 *) Change the meaning of 'ALL' in the cipher list. It now means "everything 10067 except NULL ciphers". This means the default cipher list will no longer 10068 enable NULL ciphers. They need to be specifically enabled e.g. with 10069 the string "DEFAULT:eNULL". 10070 [Steve Henson] 10071 10072 *) Fix to RSA private encryption routines: if p < q then it would 10073 occasionally produce an invalid result. This will only happen with 10074 externally generated keys because OpenSSL (and SSLeay) ensure p > q. 10075 [Steve Henson] 10076 10077 *) Be less restrictive and allow also `perl util/perlpath.pl 10078 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin', 10079 because this way one can also use an interpreter named `perl5' (which is 10080 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still 10081 installed as `perl'). 10082 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] 10083 10084 *) Let util/clean-depend.pl work also with older Perl 5.00x versions. 10085 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] 10086 10087 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add 10088 advapi32.lib to Win32 build and change the pem test comparision 10089 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the 10090 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h 10091 and crypto/des/ede_cbcm_enc.c. 10092 [Steve Henson] 10093 10094 *) DES quad checksum was broken on big-endian architectures. Fixed. 10095 [Ben Laurie] 10096 10097 *) Comment out two functions in bio.h that aren't implemented. Fix up the 10098 Win32 test batch file so it (might) work again. The Win32 test batch file 10099 is horrible: I feel ill.... 10100 [Steve Henson] 10101 10102 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected 10103 in e_os.h. Audit of header files to check ANSI and non ANSI 10104 sections: 10 functions were absent from non ANSI section and not exported 10105 from Windows DLLs. Fixed up libeay.num for new functions. 10106 [Steve Henson] 10107 10108 *) Make `openssl version' output lines consistent. 10109 [Ralf S. Engelschall] 10110 10111 *) Fix Win32 symbol export lists for BIO functions: Added 10112 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data 10113 to ms/libeay{16,32}.def. 10114 [Ralf S. Engelschall] 10115 10116 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled 10117 fine under Unix and passes some trivial tests I've now added. But the 10118 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was 10119 added to make sure no one expects that this stuff really works in the 10120 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources 10121 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and 10122 openssl_bio.xs. 10123 [Ralf S. Engelschall] 10124 10125 *) Fix the generation of two part addresses in perl. 10126 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie] 10127 10128 *) Add config entry for Linux on MIPS. 10129 [John Tobey <jtobey@channel1.com>] 10130 10131 *) Make links whenever Configure is run, unless we are on Windoze. 10132 [Ben Laurie] 10133 10134 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf. 10135 Currently only issuerAltName and AuthorityKeyIdentifier make any sense 10136 in CRLs. 10137 [Steve Henson] 10138 10139 *) Add a useful kludge to allow package maintainers to specify compiler and 10140 other platforms details on the command line without having to patch the 10141 Configure script everytime: One now can use ``perl Configure 10142 <id>:<details>'', i.e. platform ids are allowed to have details appended 10143 to them (seperated by colons). This is treated as there would be a static 10144 pre-configured entry in Configure's %table under key <id> with value 10145 <details> and ``perl Configure <id>'' is called. So, when you want to 10146 perform a quick test-compile under FreeBSD 3.1 with pgcc and without 10147 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"'' 10148 now, which overrides the FreeBSD-elf entry on-the-fly. 10149 [Ralf S. Engelschall] 10150 10151 *) Disable new TLS1 ciphersuites by default: they aren't official yet. 10152 [Ben Laurie] 10153 10154 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified 10155 on the `perl Configure ...' command line. This way one can compile 10156 OpenSSL libraries with Position Independent Code (PIC) which is needed 10157 for linking it into DSOs. 10158 [Ralf S. Engelschall] 10159 10160 *) Remarkably, export ciphers were totally broken and no-one had noticed! 10161 Fixed. 10162 [Ben Laurie] 10163 10164 *) Cleaned up the LICENSE document: The official contact for any license 10165 questions now is the OpenSSL core team under openssl-core@openssl.org. 10166 And add a paragraph about the dual-license situation to make sure people 10167 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply 10168 to the OpenSSL toolkit. 10169 [Ralf S. Engelschall] 10170 10171 *) General source tree makefile cleanups: Made `making xxx in yyy...' 10172 display consistent in the source tree and replaced `/bin/rm' by `rm'. 10173 Additonally cleaned up the `make links' target: Remove unnecessary 10174 semicolons, subsequent redundant removes, inline point.sh into mklink.sh 10175 to speed processing and no longer clutter the display with confusing 10176 stuff. Instead only the actually done links are displayed. 10177 [Ralf S. Engelschall] 10178 10179 *) Permit null encryption ciphersuites, used for authentication only. It used 10180 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this. 10181 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null 10182 encryption. 10183 [Ben Laurie] 10184 10185 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder 10186 signed attributes when verifying signatures (this would break them), 10187 the detached data encoding was wrong and public keys obtained using 10188 X509_get_pubkey() weren't freed. 10189 [Steve Henson] 10190 10191 *) Add text documentation for the BUFFER functions. Also added a work around 10192 to a Win95 console bug. This was triggered by the password read stuff: the 10193 last character typed gets carried over to the next fread(). If you were 10194 generating a new cert request using 'req' for example then the last 10195 character of the passphrase would be CR which would then enter the first 10196 field as blank. 10197 [Steve Henson] 10198 10199 *) Added the new `Includes OpenSSL Cryptography Software' button as 10200 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay 10201 button and can be used by applications based on OpenSSL to show the 10202 relationship to the OpenSSL project. 10203 [Ralf S. Engelschall] 10204 10205 *) Remove confusing variables in function signatures in files 10206 ssl/ssl_lib.c and ssl/ssl.h. 10207 [Lennart Bong <lob@kulthea.stacken.kth.se>] 10208 10209 *) Don't install bss_file.c under PREFIX/include/ 10210 [Lennart Bong <lob@kulthea.stacken.kth.se>] 10211 10212 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle 10213 functions that return function pointers and has support for NT specific 10214 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various 10215 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from 10216 unsigned to signed types: this was killing the Win32 compile. 10217 [Steve Henson] 10218 10219 *) Add new certificate file to stack functions, 10220 SSL_add_dir_cert_subjects_to_stack() and 10221 SSL_add_file_cert_subjects_to_stack(). These largely supplant 10222 SSL_load_client_CA_file(), and can be used to add multiple certs easily 10223 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()). 10224 This means that Apache-SSL and similar packages don't have to mess around 10225 to add as many CAs as they want to the preferred list. 10226 [Ben Laurie] 10227 10228 *) Experiment with doxygen documentation. Currently only partially applied to 10229 ssl/ssl_lib.c. 10230 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with 10231 openssl.doxy as the configuration file. 10232 [Ben Laurie] 10233 10234 *) Get rid of remaining C++-style comments which strict C compilers hate. 10235 [Ralf S. Engelschall, pointed out by Carlos Amengual] 10236 10237 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not 10238 compiled in by default: it has problems with large keys. 10239 [Steve Henson] 10240 10241 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and 10242 DH private keys and/or callback functions which directly correspond to 10243 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This 10244 is needed for applications which have to configure certificates on a 10245 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis 10246 (e.g. s_server). 10247 For the RSA certificate situation is makes no difference, but 10248 for the DSA certificate situation this fixes the "no shared cipher" 10249 problem where the OpenSSL cipher selection procedure failed because the 10250 temporary keys were not overtaken from the context and the API provided 10251 no way to reconfigure them. 10252 The new functions now let applications reconfigure the stuff and they 10253 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh, 10254 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new 10255 non-public-API function ssl_cert_instantiate() is used as a helper 10256 function and also to reduce code redundancy inside ssl_rsa.c. 10257 [Ralf S. Engelschall] 10258 10259 *) Move s_server -dcert and -dkey options out of the undocumented feature 10260 area because they are useful for the DSA situation and should be 10261 recognized by the users. 10262 [Ralf S. Engelschall] 10263 10264 *) Fix the cipher decision scheme for export ciphers: the export bits are 10265 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within 10266 SSL_EXP_MASK. So, the original variable has to be used instead of the 10267 already masked variable. 10268 [Richard Levitte <levitte@stacken.kth.se>] 10269 10270 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c 10271 [Richard Levitte <levitte@stacken.kth.se>] 10272 10273 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal() 10274 from `int' to `unsigned int' because it's a length and initialized by 10275 EVP_DigestFinal() which expects an `unsigned int *'. 10276 [Richard Levitte <levitte@stacken.kth.se>] 10277 10278 *) Don't hard-code path to Perl interpreter on shebang line of Configure 10279 script. Instead use the usual Shell->Perl transition trick. 10280 [Ralf S. Engelschall] 10281 10282 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates 10283 (in addition to RSA certificates) to match the behaviour of `openssl dsa 10284 -noout -modulus' as it's already the case for `openssl rsa -noout 10285 -modulus'. For RSA the -modulus is the real "modulus" while for DSA 10286 currently the public key is printed (a decision which was already done by 10287 `openssl dsa -modulus' in the past) which serves a similar purpose. 10288 Additionally the NO_RSA no longer completely removes the whole -modulus 10289 option; it now only avoids using the RSA stuff. Same applies to NO_DSA 10290 now, too. 10291 [Ralf S. Engelschall] 10292 10293 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested 10294 BIO. See the source (crypto/evp/bio_ok.c) for more info. 10295 [Arne Ansper <arne@ats.cyber.ee>] 10296 10297 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs 10298 to be added. Now both 'req' and 'ca' can use new objects defined in the 10299 config file. 10300 [Steve Henson] 10301 10302 *) Add cool BIO that does syslog (or event log on NT). 10303 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie] 10304 10305 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5, 10306 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and 10307 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher 10308 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt. 10309 [Ben Laurie] 10310 10311 *) Add preliminary config info for new extension code. 10312 [Steve Henson] 10313 10314 *) Make RSA_NO_PADDING really use no padding. 10315 [Ulf Moeller <ulf@fitug.de>] 10316 10317 *) Generate errors when private/public key check is done. 10318 [Ben Laurie] 10319 10320 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support 10321 for some CRL extensions and new objects added. 10322 [Steve Henson] 10323 10324 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private 10325 key usage extension and fuller support for authority key id. 10326 [Steve Henson] 10327 10328 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved 10329 padding method for RSA, which is recommended for new applications in PKCS 10330 #1 v2.0 (RFC 2437, October 1998). 10331 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical 10332 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure 10333 against Bleichbacher's attack on RSA. 10334 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by 10335 Ben Laurie] 10336 10337 *) Updates to the new SSL compression code 10338 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 10339 10340 *) Fix so that the version number in the master secret, when passed 10341 via RSA, checks that if TLS was proposed, but we roll back to SSLv3 10342 (because the server will not accept higher), that the version number 10343 is 0x03,0x01, not 0x03,0x00 10344 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 10345 10346 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory 10347 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes 10348 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c 10349 [Steve Henson] 10350 10351 *) Support for RAW extensions where an arbitrary extension can be 10352 created by including its DER encoding. See apps/openssl.cnf for 10353 an example. 10354 [Steve Henson] 10355 10356 *) Make sure latest Perl versions don't interpret some generated C array 10357 code as Perl array code in the crypto/err/err_genc.pl script. 10358 [Lars Weber <3weber@informatik.uni-hamburg.de>] 10359 10360 *) Modify ms/do_ms.bat to not generate assembly language makefiles since 10361 not many people have the assembler. Various Win32 compilation fixes and 10362 update to the INSTALL.W32 file with (hopefully) more accurate Win32 10363 build instructions. 10364 [Steve Henson] 10365 10366 *) Modify configure script 'Configure' to automatically create crypto/date.h 10367 file under Win32 and also build pem.h from pem.org. New script 10368 util/mkfiles.pl to create the MINFO file on environments that can't do a 10369 'make files': perl util/mkfiles.pl >MINFO should work. 10370 [Steve Henson] 10371 10372 *) Major rework of DES function declarations, in the pursuit of correctness 10373 and purity. As a result, many evil casts evaporated, and some weirdness, 10374 too. You may find this causes warnings in your code. Zapping your evil 10375 casts will probably fix them. Mostly. 10376 [Ben Laurie] 10377 10378 *) Fix for a typo in asn1.h. Bug fix to object creation script 10379 obj_dat.pl. It considered a zero in an object definition to mean 10380 "end of object": none of the objects in objects.h have any zeros 10381 so it wasn't spotted. 10382 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>] 10383 10384 *) Add support for Triple DES Cipher Block Chaining with Output Feedback 10385 Masking (CBCM). In the absence of test vectors, the best I have been able 10386 to do is check that the decrypt undoes the encrypt, so far. Send me test 10387 vectors if you have them. 10388 [Ben Laurie] 10389 10390 *) Correct calculation of key length for export ciphers (too much space was 10391 allocated for null ciphers). This has not been tested! 10392 [Ben Laurie] 10393 10394 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage 10395 message is now correct (it understands "crypto" and "ssl" on its 10396 command line). There is also now an "update" option. This will update 10397 the util/ssleay.num and util/libeay.num files with any new functions. 10398 If you do a: 10399 perl util/mkdef.pl crypto ssl update 10400 it will update them. 10401 [Steve Henson] 10402 10403 *) Overhauled the Perl interface (perl/*): 10404 - ported BN stuff to OpenSSL's different BN library 10405 - made the perl/ source tree CVS-aware 10406 - renamed the package from SSLeay to OpenSSL (the files still contain 10407 their history because I've copied them in the repository) 10408 - removed obsolete files (the test scripts will be replaced 10409 by better Test::Harness variants in the future) 10410 [Ralf S. Engelschall] 10411 10412 *) First cut for a very conservative source tree cleanup: 10413 1. merge various obsolete readme texts into doc/ssleay.txt 10414 where we collect the old documents and readme texts. 10415 2. remove the first part of files where I'm already sure that we no 10416 longer need them because of three reasons: either they are just temporary 10417 files which were left by Eric or they are preserved original files where 10418 I've verified that the diff is also available in the CVS via "cvs diff 10419 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for 10420 the crypto/md/ stuff). 10421 [Ralf S. Engelschall] 10422 10423 *) More extension code. Incomplete support for subject and issuer alt 10424 name, issuer and authority key id. Change the i2v function parameters 10425 and add an extra 'crl' parameter in the X509V3_CTX structure: guess 10426 what that's for :-) Fix to ASN1 macro which messed up 10427 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED. 10428 [Steve Henson] 10429 10430 *) Preliminary support for ENUMERATED type. This is largely copied from the 10431 INTEGER code. 10432 [Steve Henson] 10433 10434 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy. 10435 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 10436 10437 *) Make sure `make rehash' target really finds the `openssl' program. 10438 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>] 10439 10440 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd 10441 like to hear about it if this slows down other processors. 10442 [Ben Laurie] 10443 10444 *) Add CygWin32 platform information to Configure script. 10445 [Alan Batie <batie@aahz.jf.intel.com>] 10446 10447 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm' 10448 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>] 10449 10450 *) New program nseq to manipulate netscape certificate sequences 10451 [Steve Henson] 10452 10453 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a 10454 few typos. 10455 [Steve Henson] 10456 10457 *) Fixes to BN code. Previously the default was to define BN_RECURSION 10458 but the BN code had some problems that would cause failures when 10459 doing certificate verification and some other functions. 10460 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)] 10461 10462 *) Add ASN1 and PEM code to support netscape certificate sequences. 10463 [Steve Henson] 10464 10465 *) Add ASN1 and PEM code to support netscape certificate sequences. 10466 [Steve Henson] 10467 10468 *) Add several PKIX and private extended key usage OIDs. 10469 [Steve Henson] 10470 10471 *) Modify the 'ca' program to handle the new extension code. Modify 10472 openssl.cnf for new extension format, add comments. 10473 [Steve Henson] 10474 10475 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req' 10476 and add a sample to openssl.cnf so req -x509 now adds appropriate 10477 CA extensions. 10478 [Steve Henson] 10479 10480 *) Continued X509 V3 changes. Add to other makefiles, integrate with the 10481 error code, add initial support to X509_print() and x509 application. 10482 [Steve Henson] 10483 10484 *) Takes a deep breath and start addding X509 V3 extension support code. Add 10485 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this 10486 stuff is currently isolated and isn't even compiled yet. 10487 [Steve Henson] 10488 10489 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL 10490 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print. 10491 Removed the versions check from X509 routines when loading extensions: 10492 this allows certain broken certificates that don't set the version 10493 properly to be processed. 10494 [Steve Henson] 10495 10496 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another 10497 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which 10498 can still be regenerated with "make depend". 10499 [Ben Laurie] 10500 10501 *) Spelling mistake in C version of CAST-128. 10502 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>] 10503 10504 *) Changes to the error generation code. The perl script err-code.pl 10505 now reads in the old error codes and retains the old numbers, only 10506 adding new ones if necessary. It also only changes the .err files if new 10507 codes are added. The makefiles have been modified to only insert errors 10508 when needed (to avoid needlessly modifying header files). This is done 10509 by only inserting errors if the .err file is newer than the auto generated 10510 C file. To rebuild all the error codes from scratch (the old behaviour) 10511 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl 10512 or delete all the .err files. 10513 [Steve Henson] 10514 10515 *) CAST-128 was incorrectly implemented for short keys. The C version has 10516 been fixed, but is untested. The assembler versions are also fixed, but 10517 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing 10518 to regenerate it if needed. 10519 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun 10520 Hagino <itojun@kame.net>] 10521 10522 *) File was opened incorrectly in randfile.c. 10523 [Ulf M�ller <ulf@fitug.de>] 10524 10525 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print 10526 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or 10527 GeneralizedTime. ASN1_TIME is the proper type used in certificates et 10528 al: it's just almost always a UTCTime. Note this patch adds new error 10529 codes so do a "make errors" if there are problems. 10530 [Steve Henson] 10531 10532 *) Correct Linux 1 recognition in config. 10533 [Ulf M�ller <ulf@fitug.de>] 10534 10535 *) Remove pointless MD5 hash when using DSA keys in ca. 10536 [Anonymous <nobody@replay.com>] 10537 10538 *) Generate an error if given an empty string as a cert directory. Also 10539 generate an error if handed NULL (previously returned 0 to indicate an 10540 error, but didn't set one). 10541 [Ben Laurie, reported by Anonymous <nobody@replay.com>] 10542 10543 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last. 10544 [Ben Laurie] 10545 10546 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct 10547 parameters. This was causing a warning which killed off the Win32 compile. 10548 [Steve Henson] 10549 10550 *) Remove C++ style comments from crypto/bn/bn_local.h. 10551 [Neil Costigan <neil.costigan@celocom.com>] 10552 10553 *) The function OBJ_txt2nid was broken. It was supposed to return a nid 10554 based on a text string, looking up short and long names and finally 10555 "dot" format. The "dot" format stuff didn't work. Added new function 10556 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote 10557 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the 10558 OID is not part of the table. 10559 [Steve Henson] 10560 10561 *) Add prototypes to X509 lookup/verify methods, fixing a bug in 10562 X509_LOOKUP_by_alias(). 10563 [Ben Laurie] 10564 10565 *) Sort openssl functions by name. 10566 [Ben Laurie] 10567 10568 *) Get the gendsa program working (hopefully) and add it to app list. Remove 10569 encryption from sample DSA keys (in case anyone is interested the password 10570 was "1234"). 10571 [Steve Henson] 10572 10573 *) Make _all_ *_free functions accept a NULL pointer. 10574 [Frans Heymans <fheymans@isaserver.be>] 10575 10576 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use 10577 NULL pointers. 10578 [Anonymous <nobody@replay.com>] 10579 10580 *) s_server should send the CAfile as acceptable CAs, not its own cert. 10581 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>] 10582 10583 *) Don't blow it for numeric -newkey arguments to apps/req. 10584 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>] 10585 10586 *) Temp key "for export" tests were wrong in s3_srvr.c. 10587 [Anonymous <nobody@replay.com>] 10588 10589 *) Add prototype for temp key callback functions 10590 SSL_CTX_set_tmp_{rsa,dh}_callback(). 10591 [Ben Laurie] 10592 10593 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and 10594 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey(). 10595 [Steve Henson] 10596 10597 *) X509_name_add_entry() freed the wrong thing after an error. 10598 [Arne Ansper <arne@ats.cyber.ee>] 10599 10600 *) rsa_eay.c would attempt to free a NULL context. 10601 [Arne Ansper <arne@ats.cyber.ee>] 10602 10603 *) BIO_s_socket() had a broken should_retry() on Windoze. 10604 [Arne Ansper <arne@ats.cyber.ee>] 10605 10606 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH. 10607 [Arne Ansper <arne@ats.cyber.ee>] 10608 10609 *) Make sure the already existing X509_STORE->depth variable is initialized 10610 in X509_STORE_new(), but document the fact that this variable is still 10611 unused in the certificate verification process. 10612 [Ralf S. Engelschall] 10613 10614 *) Fix the various library and apps files to free up pkeys obtained from 10615 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions. 10616 [Steve Henson] 10617 10618 *) Fix reference counting in X509_PUBKEY_get(). This makes 10619 demos/maurice/example2.c work, amongst others, probably. 10620 [Steve Henson and Ben Laurie] 10621 10622 *) First cut of a cleanup for apps/. First the `ssleay' program is now named 10623 `openssl' and second, the shortcut symlinks for the `openssl <command>' 10624 are no longer created. This way we have a single and consistent command 10625 line interface `openssl <command>', similar to `cvs <command>'. 10626 [Ralf S. Engelschall, Paul Sutton and Ben Laurie] 10627 10628 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey 10629 BIT STRING wrapper always have zero unused bits. 10630 [Steve Henson] 10631 10632 *) Add CA.pl, perl version of CA.sh, add extended key usage OID. 10633 [Steve Henson] 10634 10635 *) Make the top-level INSTALL documentation easier to understand. 10636 [Paul Sutton] 10637 10638 *) Makefiles updated to exit if an error occurs in a sub-directory 10639 make (including if user presses ^C) [Paul Sutton] 10640 10641 *) Make Montgomery context stuff explicit in RSA data structure. 10642 [Ben Laurie] 10643 10644 *) Fix build order of pem and err to allow for generated pem.h. 10645 [Ben Laurie] 10646 10647 *) Fix renumbering bug in X509_NAME_delete_entry(). 10648 [Ben Laurie] 10649 10650 *) Enhanced the err-ins.pl script so it makes the error library number 10651 global and can add a library name. This is needed for external ASN1 and 10652 other error libraries. 10653 [Steve Henson] 10654 10655 *) Fixed sk_insert which never worked properly. 10656 [Steve Henson] 10657 10658 *) Fix ASN1 macros so they can handle indefinite length construted 10659 EXPLICIT tags. Some non standard certificates use these: they can now 10660 be read in. 10661 [Steve Henson] 10662 10663 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc) 10664 into a single doc/ssleay.txt bundle. This way the information is still 10665 preserved but no longer messes up this directory. Now it's new room for 10666 the new set of documenation files. 10667 [Ralf S. Engelschall] 10668 10669 *) SETs were incorrectly DER encoded. This was a major pain, because they 10670 shared code with SEQUENCEs, which aren't coded the same. This means that 10671 almost everything to do with SETs or SEQUENCEs has either changed name or 10672 number of arguments. 10673 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>] 10674 10675 *) Fix test data to work with the above. 10676 [Ben Laurie] 10677 10678 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but 10679 was already fixed by Eric for 0.9.1 it seems. 10680 [Ben Laurie - pointed out by Ulf M�ller <ulf@fitug.de>] 10681 10682 *) Autodetect FreeBSD3. 10683 [Ben Laurie] 10684 10685 *) Fix various bugs in Configure. This affects the following platforms: 10686 nextstep 10687 ncr-scde 10688 unixware-2.0 10689 unixware-2.0-pentium 10690 sco5-cc. 10691 [Ben Laurie] 10692 10693 *) Eliminate generated files from CVS. Reorder tests to regenerate files 10694 before they are needed. 10695 [Ben Laurie] 10696 10697 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy). 10698 [Ben Laurie] 10699 10700 10701 Changes between 0.9.1b and 0.9.1c [23-Dec-1998] 10702 10703 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and 10704 changed SSLeay to OpenSSL in version strings. 10705 [Ralf S. Engelschall] 10706 10707 *) Some fixups to the top-level documents. 10708 [Paul Sutton] 10709 10710 *) Fixed the nasty bug where rsaref.h was not found under compile-time 10711 because the symlink to include/ was missing. 10712 [Ralf S. Engelschall] 10713 10714 *) Incorporated the popular no-RSA/DSA-only patches 10715 which allow to compile a RSA-free SSLeay. 10716 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall] 10717 10718 *) Fixed nasty rehash problem under `make -f Makefile.ssl links' 10719 when "ssleay" is still not found. 10720 [Ralf S. Engelschall] 10721 10722 *) Added more platforms to Configure: Cray T3E, HPUX 11, 10723 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>] 10724 10725 *) Updated the README file. 10726 [Ralf S. Engelschall] 10727 10728 *) Added various .cvsignore files in the CVS repository subdirs 10729 to make a "cvs update" really silent. 10730 [Ralf S. Engelschall] 10731 10732 *) Recompiled the error-definition header files and added 10733 missing symbols to the Win32 linker tables. 10734 [Ralf S. Engelschall] 10735 10736 *) Cleaned up the top-level documents; 10737 o new files: CHANGES and LICENSE 10738 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay 10739 o merged COPYRIGHT into LICENSE 10740 o removed obsolete TODO file 10741 o renamed MICROSOFT to INSTALL.W32 10742 [Ralf S. Engelschall] 10743 10744 *) Removed dummy files from the 0.9.1b source tree: 10745 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi 10746 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f 10747 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f 10748 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f 10749 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f 10750 [Ralf S. Engelschall] 10751 10752 *) Added various platform portability fixes. 10753 [Mark J. Cox] 10754 10755 *) The Genesis of the OpenSSL rpject: 10756 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A. 10757 Young and Tim J. Hudson created while they were working for C2Net until 10758 summer 1998. 10759 [The OpenSSL Project] 10760 10761 10762 Changes between 0.9.0b and 0.9.1b [not released] 10763 10764 *) Updated a few CA certificates under certs/ 10765 [Eric A. Young] 10766 10767 *) Changed some BIGNUM api stuff. 10768 [Eric A. Young] 10769 10770 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD, 10771 DGUX x86, Linux Alpha, etc. 10772 [Eric A. Young] 10773 10774 *) New COMP library [crypto/comp/] for SSL Record Layer Compression: 10775 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is 10776 available). 10777 [Eric A. Young] 10778 10779 *) Add -strparse option to asn1pars program which parses nested 10780 binary structures 10781 [Dr Stephen Henson <shenson@bigfoot.com>] 10782 10783 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs. 10784 [Eric A. Young] 10785 10786 *) DSA fix for "ca" program. 10787 [Eric A. Young] 10788 10789 *) Added "-genkey" option to "dsaparam" program. 10790 [Eric A. Young] 10791 10792 *) Added RIPE MD160 (rmd160) message digest. 10793 [Eric A. Young] 10794 10795 *) Added -a (all) option to "ssleay version" command. 10796 [Eric A. Young] 10797 10798 *) Added PLATFORM define which is the id given to Configure. 10799 [Eric A. Young] 10800 10801 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking. 10802 [Eric A. Young] 10803 10804 *) Extended the ASN.1 parser routines. 10805 [Eric A. Young] 10806 10807 *) Extended BIO routines to support REUSEADDR, seek, tell, etc. 10808 [Eric A. Young] 10809 10810 *) Added a BN_CTX to the BN library. 10811 [Eric A. Young] 10812 10813 *) Fixed the weak key values in DES library 10814 [Eric A. Young] 10815 10816 *) Changed API in EVP library for cipher aliases. 10817 [Eric A. Young] 10818 10819 *) Added support for RC2/64bit cipher. 10820 [Eric A. Young] 10821 10822 *) Converted the lhash library to the crypto/mem.c functions. 10823 [Eric A. Young] 10824 10825 *) Added more recognized ASN.1 object ids. 10826 [Eric A. Young] 10827 10828 *) Added more RSA padding checks for SSL/TLS. 10829 [Eric A. Young] 10830 10831 *) Added BIO proxy/filter functionality. 10832 [Eric A. Young] 10833 10834 *) Added extra_certs to SSL_CTX which can be used 10835 send extra CA certificates to the client in the CA cert chain sending 10836 process. It can be configured with SSL_CTX_add_extra_chain_cert(). 10837 [Eric A. Young] 10838 10839 *) Now Fortezza is denied in the authentication phase because 10840 this is key exchange mechanism is not supported by SSLeay at all. 10841 [Eric A. Young] 10842 10843 *) Additional PKCS1 checks. 10844 [Eric A. Young] 10845 10846 *) Support the string "TLSv1" for all TLS v1 ciphers. 10847 [Eric A. Young] 10848 10849 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the 10850 ex_data index of the SSL context in the X509_STORE_CTX ex_data. 10851 [Eric A. Young] 10852 10853 *) Fixed a few memory leaks. 10854 [Eric A. Young] 10855 10856 *) Fixed various code and comment typos. 10857 [Eric A. Young] 10858 10859 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0 10860 bytes sent in the client random. 10861 [Edward Bishop <ebishop@spyglass.com>] 10862 10863