5 Changes between 1.0.x and 1.1.0 [xx XXX xxxx]
7 *) New functions to set lookup_crls function and to retrieve
8 X509_STORE from X509_STORE_CTX.
11 *) New ctrl and macro to retrieve supported points extensions.
12 Print out extension in s_server and s_client.
15 *) New function ASN1_TIME_diff to calculate the difference between two
16 ASN1_TIME structures or one structure and the current time.
19 *) Fixes and wildcard matching support to hostname and email checking
20 functions. Add manual page.
21 [Florian Weimer (Red Hat Product Security Team)]
23 *) New experimental SSL_CONF* functions. These provide a common framework
24 for application configuration using configuration files or command lines.
27 *) New functions to check a hostname email or IP address against a
28 certificate. Add options to s_client, s_server and x509 utilities
29 to print results of checks against a certificate.
32 *) Add -rev test option to s_server to just reverse order of characters
33 received by client and send back to server. Also prints an abbreviated
34 summary of the connection parameters.
37 *) New option -brief for s_client and s_server to print out a brief summary
38 of connection parameters.
41 *) Add functions to retrieve and manipulate the raw cipherlist sent by a
45 *) New Suite B modes for TLS code. These use and enforce the requirements
46 of RFC6460: restrict ciphersuites, only permit Suite B algorithms and
47 only use Suite B curves. The Suite B modes can be set by using the
48 strings "SUITEB128", "SUITEB192" or "SUITEB128ONLY" for the cipherstring.
51 *) New chain verification flags for Suite B levels of security. Check
52 algorithms are acceptable when flags are set in X509_verify_cert.
55 *) Make tls1_check_chain return a set of flags indicating checks passed
56 by a certificate chain. Add additional tests to handle client
57 certificates: checks for matching certificate type and issuer name
61 *) If an attempt is made to use a signature algorithm not in the peer
62 preference list abort the handshake. If client has no suitable
63 signature algorithms in response to a certificate request do not
67 *) If server EC tmp key is not in client preference list abort handshake.
70 *) Add support for certificate stores in CERT structure. This makes it
71 possible to have different stores per SSL structure or one store in
72 the parent SSL_CTX. Include distint stores for certificate chain
73 verification and chain building. New ctrl SSL_CTRL_BUILD_CERT_CHAIN
74 to build and store a certificate chain in CERT structure: returing
75 an error if the chain cannot be built: this will allow applications
76 to test if a chain is correctly configured.
78 Note: if the CERT based stores are not set then the parent SSL_CTX
79 store is used to retain compatibility with existing behaviour.
83 *) New function ssl_set_client_disabled to set a ciphersuite disabled
84 mask based on the current session, check mask when sending client
85 hello and checking the requested ciphersuite.
88 *) New ctrls to retrieve and set certificate types in a certificate
89 request message. Print out received values in s_client. If certificate
90 types is not set with custom values set sensible values based on
91 supported signature algorithms.
94 *) Support for distinct client and server supported signature algorithms.
97 *) Add certificate callback. If set this is called whenever a certificate
98 is required by client or server. An application can decide which
99 certificate chain to present based on arbitrary criteria: for example
100 supported signature algorithms. Add very simple example to s_server.
101 This fixes many of the problems and restrictions of the existing client
102 certificate callback: for example you can now clear an existing
103 certificate and specify the whole chain.
106 *) Add new "valid_flags" field to CERT_PKEY structure which determines what
107 the certificate can be used for (if anything). Set valid_flags field
108 in new tls1_check_chain function. Simplify ssl_set_cert_masks which used
109 to have similar checks in it.
111 Add new "cert_flags" field to CERT structure and include a "strict mode".
112 This enforces some TLS certificate requirements (such as only permitting
113 certificate signature algorithms contained in the supported algorithms
114 extension) which some implementations ignore: this option should be used
115 with caution as it could cause interoperability issues.
118 *) Update and tidy signature algorithm extension processing. Work out
119 shared signature algorithms based on preferences and peer algorithms
120 and print them out in s_client and s_server. Abort handshake if no
121 shared signature algorithms.
124 *) Add new functions to allow customised supported signature algorithms
125 for SSL and SSL_CTX structures. Add options to s_client and s_server
129 *) New function SSL_certs_clear() to delete all references to certificates
130 from an SSL structure. Before this once a certificate had been added
131 it couldn't be removed.
134 *) Initial SSL tracing code. This parses out SSL/TLS records using the
135 message callback and prints the results. Needs compile time option
136 "enable-ssl-trace". New options to s_client and s_server to enable
140 *) New functions to retrieve certificate signature and signature
144 *) Print out deprecated issuer and subject unique ID fields in
148 *) Update fips_test_suite to support multiple command line options. New
149 test to induce all self test errors in sequence and check expected
153 *) Add FIPS_{rsa,dsa,ecdsa}_{sign,verify} functions which digest and
154 sign or verify all in one operation.
157 *) Add fips_algvs: a multicall fips utility incorporaing all the algorithm
158 test programs and fips_test_suite. Includes functionality to parse
159 the minimal script output of fipsalgest.pl directly.
162 *) Add authorisation parameter to FIPS_module_mode_set().
165 *) Add FIPS selftest for ECDH algorithm using P-224 and B-233 curves.
168 *) Use separate DRBG fields for internal and external flags. New function
169 FIPS_drbg_health_check() to perform on demand health checking. Add
170 generation tests to fips_test_suite with reduced health check interval to
171 demonstrate periodic health checking. Add "nodh" option to
172 fips_test_suite to skip very slow DH test.
175 *) New function FIPS_get_cipherbynid() to lookup FIPS supported ciphers
179 *) More extensive health check for DRBG checking many more failure modes.
180 New function FIPS_selftest_drbg_all() to handle every possible DRBG
181 combination: call this in fips_test_suite.
184 *) Add support for Dual EC DRBG from SP800-90. Update DRBG algorithm test
185 and POST to handle Dual EC cases.
188 *) Add support for canonical generation of DSA parameter 'g'. See
191 *) Add support for HMAC DRBG from SP800-90. Update DRBG algorithm test and
192 POST to handle HMAC cases.
195 *) Add functions FIPS_module_version() and FIPS_module_version_text()
196 to return numberical and string versions of the FIPS module number.
199 *) Rename FIPS_mode_set and FIPS_mode to FIPS_module_mode_set and
200 FIPS_module_mode. FIPS_mode and FIPS_mode_set will be implmeneted
201 outside the validated module in the FIPS capable OpenSSL.
204 *) Minor change to DRBG entropy callback semantics. In some cases
205 there is no mutiple of the block length between min_len and
206 max_len. Allow the callback to return more than max_len bytes
207 of entropy but discard any extra: it is the callback's responsibility
208 to ensure that the extra data discarded does not impact the
209 requested amount of entropy.
212 *) Add PRNG security strength checks to RSA, DSA and ECDSA using
213 information in FIPS186-3, SP800-57 and SP800-131A.
216 *) CCM support via EVP. Interface is very similar to GCM case except we
217 must supply all data in one chunk (i.e. no update, final) and the
218 message length must be supplied if AAD is used. Add algorithm test
222 *) Initial version of POST overhaul. Add POST callback to allow the status
223 of POST to be monitored and/or failures induced. Modify fips_test_suite
224 to use callback. Always run all selftests even if one fails.
227 *) XTS support including algorithm test driver in the fips_gcmtest program.
228 Note: this does increase the maximum key length from 32 to 64 bytes but
229 there should be no binary compatibility issues as existing applications
230 will never use XTS mode.
233 *) Extensive reorganisation of FIPS PRNG behaviour. Remove all dependencies
234 to OpenSSL RAND code and replace with a tiny FIPS RAND API which also
235 performs algorithm blocking for unapproved PRNG types. Also do not
236 set PRNG type in FIPS_mode_set(): leave this to the application.
237 Add default OpenSSL DRBG handling: sets up FIPS PRNG and seeds with
238 the standard OpenSSL PRNG: set additional data to a date time vector.
241 *) Rename old X9.31 PRNG functions of the form FIPS_rand* to FIPS_x931*.
242 This shouldn't present any incompatibility problems because applications
243 shouldn't be using these directly and any that are will need to rethink
244 anyway as the X9.31 PRNG is now deprecated by FIPS 140-2
247 *) Extensive self tests and health checking required by SP800-90 DRBG.
248 Remove strength parameter from FIPS_drbg_instantiate and always
249 instantiate at maximum supported strength.
252 *) Add ECDH code to fips module and fips_ecdhvs for primitives only testing.
255 *) New algorithm test program fips_dhvs to handle DH primitives only testing.
258 *) New function DH_compute_key_padded() to compute a DH key and pad with
259 leading zeroes if needed: this complies with SP800-56A et al.
262 *) Initial implementation of SP800-90 DRBGs for Hash and CTR. Not used by
263 anything, incomplete, subject to change and largely untested at present.
266 *) Modify fipscanisteronly build option to only build the necessary object
267 files by filtering FIPS_EX_OBJ through a perl script in crypto/Makefile.
270 *) Add experimental option FIPSSYMS to give all symbols in
271 fipscanister.o and FIPS or fips prefix. This will avoid
272 conflicts with future versions of OpenSSL. Add perl script
273 util/fipsas.pl to preprocess assembly language source files
274 and rename any affected symbols.
277 *) Add selftest checks and algorithm block of non-fips algorithms in
278 FIPS mode. Remove DES2 from selftests.
281 *) Add ECDSA code to fips module. Add tiny fips_ecdsa_check to just
282 return internal method without any ENGINE dependencies. Add new
283 tiny fips sign and verify functions.
286 *) New build option no-ec2m to disable characteristic 2 code.
289 *) New build option "fipscanisteronly". This only builds fipscanister.o
290 and (currently) associated fips utilities. Uses the file Makefile.fips
291 instead of Makefile.org as the prototype.
294 *) Add some FIPS mode restrictions to GCM. Add internal IV generator.
295 Update fips_gcmtest to use IV generator.
298 *) Initial, experimental EVP support for AES-GCM. AAD can be input by
299 setting output buffer to NULL. The *Final function must be
300 called although it will not retrieve any additional data. The tag
301 can be set or retrieved with a ctrl. The IV length is by default 12
302 bytes (96 bits) but can be set to an alternative value. If the IV
303 length exceeds the maximum IV length (currently 16 bytes) it cannot be
307 *) New flag in ciphers: EVP_CIPH_FLAG_CUSTOM_CIPHER. This means the
308 underlying do_cipher function handles all cipher semantics itself
309 including padding and finalisation. This is useful if (for example)
310 an ENGINE cipher handles block padding itself. The behaviour of
311 do_cipher is subtly changed if this flag is set: the return value
312 is the number of characters written to the output buffer (zero is
313 no longer an error code) or a negative error code. Also if the
314 input buffer is NULL and length 0 finalisation should be performed.
317 *) If a candidate issuer certificate is already part of the constructed
318 path ignore it: new debug notification X509_V_ERR_PATH_LOOP for this case.
321 *) Improve forward-security support: add functions
323 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure))
324 void SSL_set_not_resumable_session_callback(SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure))
326 for use by SSL/TLS servers; the callback function will be called whenever a
327 new session is created, and gets to decide whether the session may be
328 cached to make it resumable (return 0) or not (return 1). (As by the
329 SSL/TLS protocol specifications, the session_id sent by the server will be
330 empty to indicate that the session is not resumable; also, the server will
331 not generate RFC 4507 (RFC 5077) session tickets.)
333 A simple reasonable callback implementation is to return is_forward_secure.
334 This parameter will be set to 1 or 0 depending on the ciphersuite selected
335 by the SSL/TLS server library, indicating whether it can provide forward
337 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
339 *) New function OPENSSL_gmtime_diff to find the difference in days
340 and seconds between two tm structures. This will be used to provide
341 additional functionality for ASN1_TIME.
344 *) Add -trusted_first option which attempts to find certificates in the
345 trusted store even if an untrusted chain is also supplied.
348 *) Initial experimental support for explicitly trusted non-root CAs.
349 OpenSSL still tries to build a complete chain to a root but if an
350 intermediate CA has a trust setting included that is used. The first
351 setting is used: whether to trust or reject.
354 *) New -verify_name option in command line utilities to set verification
358 *) Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE.
359 Add CMAC pkey methods.
362 *) Experimental regnegotiation in s_server -www mode. If the client
363 browses /reneg connection is renegotiated. If /renegcert it is
364 renegotiated requesting a certificate.
367 *) Add an "external" session cache for debugging purposes to s_server. This
368 should help trace issues which normally are only apparent in deployed
369 multi-process servers.
372 *) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where
373 return value is ignored. NB. The functions RAND_add(), RAND_seed(),
374 BIO_set_cipher() and some obscure PEM functions were changed so they
375 can now return an error. The RAND changes required a change to the
376 RAND_METHOD structure.
379 *) New macro __owur for "OpenSSL Warn Unused Result". This makes use of
380 a gcc attribute to warn if the result of a function is ignored. This
381 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h
382 whose return value is often ignored.
385 Changes between 1.0.1 and 1.0.2 [xx XXX xxxx]
387 *) MIPS assembly pack updates: support for MIPS32r2 and SmartMIPS ASE,
388 platform support for Linux and Android.
391 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
392 the right response is stapled. Also change current certificate to
393 the certificate actually sent.
394 See http://rt.openssl.org/Ticket/Display.html?id=2836.
395 [Rob Stradling <rob.stradling@comodo.com>]
397 *) Support for linux-x32, ILP32 environment in x86_64 framework.
401 [Emilia Kasper, Adam Langley, Ben Laurie (Google)]
403 *) Experimental multi-implementation support for FIPS capable OpenSSL.
404 When in FIPS mode the approved implementations are used as normal,
405 when not in FIPS mode the internal unapproved versions are used instead.
406 This means that the FIPS capable OpenSSL isn't forced to use the
407 (often lower perfomance) FIPS implementations outside FIPS mode.
410 *) Transparently support X9.42 DH parameters when calling
411 PEM_read_bio_DHparameters. This means existing applications can handle
412 the new parameter format automatically.
415 *) Initial experimental support for X9.42 DH parameter format: mainly
416 to support use of 'q' parameter for RFC5114 parameters.
419 *) Add DH parameters from RFC5114 including test data to dhtest.
422 *) Support for automatic EC temporary key parameter selection. If enabled
423 the most preferred EC parameters are automatically used instead of
424 hardcoded fixed parameters. Now a server just has to call:
425 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically
426 support ECDH and use the most appropriate parameters.
429 *) Enhance and tidy EC curve and point format TLS extension code. Use
430 static structures instead of allocation if default values are used.
431 New ctrls to set curves we wish to support and to retrieve shared curves.
432 Print out shared curves in s_server. New options to s_server and s_client
433 to set list of supported curves.
436 *) New ctrls to retrieve supported signature algorithms and
437 supported curve values as an array of NIDs. Extend openssl utility
438 to print out received values.
441 *) Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert
442 between NIDs and the more common NIST names such as "P-256". Enhance
443 ecparam utility and ECC method to recognise the NIST names for curves.
446 *) Enhance SSL/TLS certificate chain handling to support different
447 chains for each certificate instead of one chain in the parent SSL_CTX.
450 *) Support for fixed DH ciphersuite client authentication: where both
451 server and client use DH certificates with common parameters.
454 *) Support for fixed DH ciphersuites: those requiring DH server
458 Changes between 1.0.1c and 1.0.1d [xx XXX xxxx]
460 *) Fix possible deadlock when decoding public keys.
463 *) Don't use TLS 1.0 record version number in initial client hello
467 Changes between 1.0.1b and 1.0.1c [10 May 2012]
469 *) Sanity check record length before skipping explicit IV in TLS
470 1.2, 1.1 and DTLS to avoid DoS attack.
472 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
473 fuzzing as a service testing platform.
477 *) Initialise tkeylen properly when encrypting CMS messages.
478 Thanks to Solar Designer of Openwall for reporting this issue.
481 *) In FIPS mode don't try to use composite ciphers as they are not
485 Changes between 1.0.1a and 1.0.1b [26 Apr 2012]
487 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and
488 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately
489 mean any application compiled against OpenSSL 1.0.0 headers setting
490 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng
491 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to
492 0x10000000L Any application which was previously compiled against
493 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1
494 will need to be recompiled as a result. Letting be results in
495 inability to disable specifically TLS 1.1 and in client context,
496 in unlike event, limit maximum offered version to TLS 1.0 [see below].
499 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not
500 disable just protocol X, but all protocols above X *if* there are
501 protocols *below* X still enabled. In more practical terms it means
502 that if application wants to disable TLS1.0 in favor of TLS1.1 and
503 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass
504 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to
508 Changes between 1.0.1 and 1.0.1a [19 Apr 2012]
510 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
511 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
512 in CRYPTO_realloc_clean.
514 Thanks to Tavis Ormandy, Google Security Team, for discovering this
515 issue and to Adam Langley <agl@chromium.org> for fixing it.
517 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
519 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections.
522 *) Workarounds for some broken servers that "hang" if a client hello
523 record length exceeds 255 bytes:
525 1. Do not use record version number > TLS 1.0 in initial client
526 hello: some (but not all) hanging servers will now work.
527 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate
528 the number of ciphers sent in the client hello. This should be
529 set to an even number, such as 50, for example by passing:
530 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure.
531 Most broken servers should now work.
532 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable
533 TLS 1.2 client support entirely.
536 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH.
539 Changes between 1.0.0h and 1.0.1 [14 Mar 2012]
541 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
542 STRING form instead of a DigestInfo.
545 *) The format used for MDC2 RSA signatures is inconsistent between EVP
546 and the RSA_sign/RSA_verify functions. This was made more apparent when
547 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
548 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect
549 the correct format in RSA_verify so both forms transparently work.
552 *) Some servers which support TLS 1.0 can choke if we initially indicate
553 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
554 encrypted premaster secret. As a workaround use the maximum pemitted
555 client version in client hello, this should keep such servers happy
556 and still work with previous versions of OpenSSL.
559 *) Add support for TLS/DTLS heartbeats.
560 [Robin Seggelmann <seggelmann@fh-muenster.de>]
562 *) Add support for SCTP.
563 [Robin Seggelmann <seggelmann@fh-muenster.de>]
565 *) Improved PRNG seeding for VOS.
566 [Paul Green <Paul.Green@stratus.com>]
568 *) Extensive assembler packs updates, most notably:
570 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
571 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
572 - x86_64: bit-sliced AES implementation;
573 - ARM: NEON support, contemporary platforms optimizations;
574 - s390x: z196 support;
575 - *: GHASH and GF(2^m) multiplication implementations;
579 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
580 (removal of unnecessary code)
581 [Peter Sylvester <peter.sylvester@edelweb.fr>]
583 *) Add TLS key material exporter from RFC 5705.
586 *) Add DTLS-SRTP negotiation from RFC 5764.
589 *) Add Next Protocol Negotiation,
590 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
591 disabled with a no-npn flag to config or Configure. Code donated
593 [Adam Langley <agl@google.com> and Ben Laurie]
595 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
596 NIST-P256, NIST-P521, with constant-time single point multiplication on
597 typical inputs. Compiler support for the nonstandard type __uint128_t is
598 required to use this (present in gcc 4.4 and later, for 64-bit builds).
599 Code made available under Apache License version 2.0.
601 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
602 line to include this in your build of OpenSSL, and run "make depend" (or
603 "make update"). This enables the following EC_METHODs:
605 EC_GFp_nistp224_method()
606 EC_GFp_nistp256_method()
607 EC_GFp_nistp521_method()
609 EC_GROUP_new_by_curve_name() will automatically use these (while
610 EC_GROUP_new_curve_GFp() currently prefers the more flexible
612 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
614 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
615 all platforms. Move ssize_t definition from e_os.h to the public
616 header file e_os2.h as it now appears in public header file cms.h
619 *) New -sigopt option to the ca, req and x509 utilities. Additional
620 signature parameters can be passed using this option and in
624 *) Add RSA PSS signing function. This will generate and set the
625 appropriate AlgorithmIdentifiers for PSS based on those in the
626 corresponding EVP_MD_CTX structure. No application support yet.
629 *) Support for companion algorithm specific ASN1 signing routines.
630 New function ASN1_item_sign_ctx() signs a pre-initialised
631 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
632 the appropriate parameters.
635 *) Add new algorithm specific ASN1 verification initialisation function
636 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
637 handling will be the same no matter what EVP_PKEY_METHOD is used.
638 Add a PSS handler to support verification of PSS signatures: checked
639 against a number of sample certificates.
642 *) Add signature printing for PSS. Add PSS OIDs.
643 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
645 *) Add algorithm specific signature printing. An individual ASN1 method
646 can now print out signatures instead of the standard hex dump.
648 More complex signatures (e.g. PSS) can print out more meaningful
649 information. Include DSA version that prints out the signature
653 *) Password based recipient info support for CMS library: implementing
657 *) Split password based encryption into PBES2 and PBKDF2 functions. This
658 neatly separates the code into cipher and PBE sections and is required
659 for some algorithms that split PBES2 into separate pieces (such as
663 *) Session-handling fixes:
664 - Fix handling of connections that are resuming with a session ID,
665 but also support Session Tickets.
666 - Fix a bug that suppressed issuing of a new ticket if the client
667 presented a ticket with an expired session.
668 - Try to set the ticket lifetime hint to something reasonable.
669 - Make tickets shorter by excluding irrelevant information.
670 - On the client side, don't ignore renewed tickets.
671 [Adam Langley, Bodo Moeller (Google)]
673 *) Fix PSK session representation.
676 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
678 This work was sponsored by Intel.
681 *) Add GCM support to TLS library. Some custom code is needed to split
682 the IV between the fixed (from PRF) and explicit (from TLS record)
683 portions. This adds all GCM ciphersuites supported by RFC5288 and
684 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
685 add a special AESGCM string for GCM only.
688 *) Expand range of ctrls for AES GCM. Permit setting invocation
689 field on decrypt and retrieval of invocation field only on encrypt.
692 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
693 As required by RFC5289 these ciphersuites cannot be used if for
694 versions of TLS earlier than 1.2.
697 *) For FIPS capable OpenSSL interpret a NULL default public key method
698 as unset and return the appopriate default but do *not* set the default.
699 This means we can return the appopriate method in applications that
700 swicth between FIPS and non-FIPS modes.
703 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
704 ENGINE is used then we cannot handle that in the FIPS module so we
705 keep original code iff non-FIPS operations are allowed.
708 *) Add -attime option to openssl utilities.
709 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
711 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
714 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
715 FIPS EC methods unconditionally for now.
718 *) New build option no-ec2m to disable characteristic 2 code.
721 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
722 all cases can be covered as some introduce binary incompatibilities.
725 *) Redirect RSA operations to FIPS module including keygen,
726 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
729 *) Add similar low level API blocking to ciphers.
732 *) Low level digest APIs are not approved in FIPS mode: any attempt
733 to use these will cause a fatal error. Applications that *really* want
734 to use them can use the private_* version instead.
737 *) Redirect cipher operations to FIPS module for FIPS builds.
740 *) Redirect digest operations to FIPS module for FIPS builds.
743 *) Update build system to add "fips" flag which will link in fipscanister.o
744 for static and shared library builds embedding a signature if needed.
747 *) Output TLS supported curves in preference order instead of numerical
748 order. This is currently hardcoded for the highest order curves first.
749 This should be configurable so applications can judge speed vs strength.
752 *) Add TLS v1.2 server support for client authentication.
755 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
759 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
760 FIPS modules versions.
763 *) Add TLS v1.2 client side support for client authentication. Keep cache
764 of handshake records longer as we don't know the hash algorithm to use
765 until after the certificate request message is received.
768 *) Initial TLS v1.2 client support. Add a default signature algorithms
769 extension including all the algorithms we support. Parse new signature
770 format in client key exchange. Relax some ECC signing restrictions for
771 TLS v1.2 as indicated in RFC5246.
774 *) Add server support for TLS v1.2 signature algorithms extension. Switch
775 to new signature format when needed using client digest preference.
776 All server ciphersuites should now work correctly in TLS v1.2. No client
777 support yet and no support for client certificates.
780 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
781 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
782 ciphersuites. At present only RSA key exchange ciphersuites work with
783 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
784 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
785 and version checking.
788 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
789 with this defined it will not be affected by any changes to ssl internal
790 structures. Add several utility functions to allow openssl application
791 to work with OPENSSL_NO_SSL_INTERN defined.
795 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
797 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
800 *) Permit abbreviated handshakes when renegotiating using the function
801 SSL_renegotiate_abbreviated().
802 [Robin Seggelmann <seggelmann@fh-muenster.de>]
804 *) Add call to ENGINE_register_all_complete() to
805 ENGINE_load_builtin_engines(), so some implementations get used
806 automatically instead of needing explicit application support.
809 *) Add support for TLS key exporter as described in RFC5705.
810 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
812 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
813 a few changes are required:
815 Add SSL_OP_NO_TLSv1_1 flag.
817 Update version checking logic to handle version 1.1.
818 Add explicit IV handling (ported from DTLS code).
819 Add command line options to s_client/s_server.
822 Changes between 1.0.0g and 1.0.0h [12 Mar 2012]
824 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
825 in CMS and PKCS7 code. When RSA decryption fails use a random key for
826 content decryption and always return the same error. Note: this attack
827 needs on average 2^20 messages so it only affects automated senders. The
828 old behaviour can be reenabled in the CMS code by setting the
829 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
830 an MMA defence is not necessary.
831 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
832 this issue. (CVE-2012-0884)
835 *) Fix CVE-2011-4619: make sure we really are receiving a
836 client hello before rejecting multiple SGC restarts. Thanks to
837 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
840 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
842 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
843 Thanks to Antonio Martin, Enterprise Secure Access Research and
844 Development, Cisco Systems, Inc. for discovering this bug and
845 preparing a fix. (CVE-2012-0050)
848 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
850 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
851 of the Vaudenay padding oracle attack on CBC mode encryption
852 which enables an efficient plaintext recovery attack against
853 the OpenSSL implementation of DTLS. Their attack exploits timing
854 differences arising during decryption processing. A research
855 paper describing this attack can be found at:
856 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
857 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
858 Security Group at Royal Holloway, University of London
859 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
860 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
861 for preparing the fix. (CVE-2011-4108)
862 [Robin Seggelmann, Michael Tuexen]
864 *) Clear bytes used for block padding of SSL 3.0 records.
866 [Adam Langley (Google)]
868 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
869 Kadianakis <desnacked@gmail.com> for discovering this issue and
870 Adam Langley for preparing the fix. (CVE-2011-4619)
871 [Adam Langley (Google)]
873 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
874 [Andrey Kulikov <amdeich@gmail.com>]
876 *) Prevent malformed RFC3779 data triggering an assertion failure.
877 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
878 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
879 [Rob Austein <sra@hactrn.net>]
881 *) Improved PRNG seeding for VOS.
882 [Paul Green <Paul.Green@stratus.com>]
884 *) Fix ssl_ciph.c set-up race.
885 [Adam Langley (Google)]
887 *) Fix spurious failures in ecdsatest.c.
888 [Emilia Käsper (Google)]
890 *) Fix the BIO_f_buffer() implementation (which was mixing different
891 interpretations of the '..._len' fields).
892 [Adam Langley (Google)]
894 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
895 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
896 threads won't reuse the same blinding coefficients.
898 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
899 lock to call BN_BLINDING_invert_ex, and avoids one use of
900 BN_BLINDING_update for each BN_BLINDING structure (previously,
901 the last update always remained unused).
902 [Emilia Käsper (Google)]
904 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
905 [Bob Buckholz (Google)]
907 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
909 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
910 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
911 [Kaspar Brand <ossl@velox.ch>]
913 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
914 for multi-threaded use of ECDH. (CVE-2011-3210)
915 [Adam Langley (Google)]
917 *) Fix x509_name_ex_d2i memory leak on bad inputs.
920 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
921 signature public key algorithm by using OID xref utilities instead.
922 Before this you could only use some ECC ciphersuites with SHA1 only.
925 *) Add protection against ECDSA timing attacks as mentioned in the paper
926 by Billy Bob Brumley and Nicola Tuveri, see:
928 http://eprint.iacr.org/2011/232.pdf
930 [Billy Bob Brumley and Nicola Tuveri]
932 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
934 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
935 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
937 *) Fix bug in string printing code: if *any* escaping is enabled we must
938 escape the escape character (backslash) or the resulting string is
942 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
944 *) Disable code workaround for ancient and obsolete Netscape browsers
945 and servers: an attacker can use it in a ciphersuite downgrade attack.
946 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
949 *) Fixed J-PAKE implementation error, originally discovered by
950 Sebastien Martini, further info and confirmation from Stefan
951 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
954 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
956 *) Fix extension code to avoid race conditions which can result in a buffer
957 overrun vulnerability: resumed sessions must not be modified as they can
958 be shared by multiple threads. CVE-2010-3864
961 *) Fix WIN32 build system to correctly link an ENGINE directory into
965 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
967 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
969 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
971 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
973 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
974 context. The operation can be customised via the ctrl mechanism in
975 case ENGINEs want to include additional functionality.
978 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
981 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
982 output hashes compatible with older versions of OpenSSL.
983 [Willy Weisz <weisz@vcpc.univie.ac.at>]
985 *) Fix compression algorithm handling: if resuming a session use the
986 compression algorithm of the resumed session instead of determining
987 it from client hello again. Don't allow server to change algorithm.
990 *) Add load_crls() function to apps tidying load_certs() too. Add option
991 to verify utility to allow additional CRLs to be included.
994 *) Update OCSP request code to permit adding custom headers to the request:
995 some responders need this.
998 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
1000 [Julia Lawall <julia@diku.dk>]
1002 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
1003 needlessly dereferenced structures, used obsolete functions and
1004 didn't handle all updated verify codes correctly.
1007 *) Disable MD2 in the default configuration.
1010 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
1011 indicate the initial BIO being pushed or popped. This makes it possible
1012 to determine whether the BIO is the one explicitly called or as a result
1013 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
1014 it handles reference counts correctly and doesn't zero out the I/O bio
1015 when it is not being explicitly popped. WARNING: applications which
1016 included workarounds for the old buggy behaviour will need to be modified
1017 or they could free up already freed BIOs.
1020 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
1021 renaming to all platforms (within the 0.9.8 branch, this was
1022 done conditionally on Netware platforms to avoid a name clash).
1023 [Guenter <lists@gknw.net>]
1025 *) Add ECDHE and PSK support to DTLS.
1026 [Michael Tuexen <tuexen@fh-muenster.de>]
1028 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
1032 *) Add "missing" function EVP_MD_flags() (without this the only way to
1033 retrieve a digest flags is by accessing the structure directly. Update
1034 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
1035 or cipher is registered as in the "from" argument. Print out all
1036 registered digests in the dgst usage message instead of manually
1037 attempting to work them out.
1040 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
1041 this allows the use of compression and extensions. Change default cipher
1042 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
1043 by default unless an application cipher string requests it.
1046 *) Alter match criteria in PKCS12_parse(). It used to try to use local
1047 key ids to find matching certificates and keys but some PKCS#12 files
1048 don't follow the (somewhat unwritten) rules and this strategy fails.
1049 Now just gather all certificates together and the first private key
1050 then look for the first certificate that matches the key.
1053 *) Support use of registered digest and cipher names for dgst and cipher
1054 commands instead of having to add each one as a special case. So now
1061 openssl dgst -sha256 foo
1063 and this works for ENGINE based algorithms too.
1067 *) Update Gost ENGINE to support parameter files.
1068 [Victor B. Wagner <vitus@cryptocom.ru>]
1070 *) Support GeneralizedTime in ca utility.
1071 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
1073 *) Enhance the hash format used for certificate directory links. The new
1074 form uses the canonical encoding (meaning equivalent names will work
1075 even if they aren't identical) and uses SHA1 instead of MD5. This form
1076 is incompatible with the older format and as a result c_rehash should
1077 be used to rebuild symbolic links.
1080 *) Make PKCS#8 the default write format for private keys, replacing the
1081 traditional format. This form is standardised, more secure and doesn't
1082 include an implicit MD5 dependency.
1085 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
1086 committed to OpenSSL should pass this lot as a minimum.
1089 *) Add session ticket override functionality for use by EAP-FAST.
1090 [Jouni Malinen <j@w1.fi>]
1092 *) Modify HMAC functions to return a value. Since these can be implemented
1093 in an ENGINE errors can occur.
1096 *) Type-checked OBJ_bsearch_ex.
1099 *) Type-checked OBJ_bsearch. Also some constification necessitated
1100 by type-checking. Still to come: TXT_DB, bsearch(?),
1101 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
1105 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
1106 seconds to a tm structure directly, instead of going through OS
1107 specific date routines. This avoids any issues with OS routines such
1108 as the year 2038 bug. New *_adj() functions for ASN1 time structures
1109 and X509_time_adj_ex() to cover the extended range. The existing
1110 X509_time_adj() is still usable and will no longer have any date issues.
1113 *) Delta CRL support. New use deltas option which will attempt to locate
1114 and search any appropriate delta CRLs available.
1116 This work was sponsored by Google.
1119 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
1120 code and add additional score elements. Validate alternate CRL paths
1121 as part of the CRL checking and indicate a new error "CRL path validation
1122 error" in this case. Applications wanting additional details can use
1123 the verify callback and check the new "parent" field. If this is not
1124 NULL CRL path validation is taking place. Existing applications wont
1125 see this because it requires extended CRL support which is off by
1128 This work was sponsored by Google.
1131 *) Support for freshest CRL extension.
1133 This work was sponsored by Google.
1136 *) Initial indirect CRL support. Currently only supported in the CRLs
1137 passed directly and not via lookup. Process certificate issuer
1138 CRL entry extension and lookup CRL entries by bother issuer name
1139 and serial number. Check and process CRL issuer entry in IDP extension.
1141 This work was sponsored by Google.
1144 *) Add support for distinct certificate and CRL paths. The CRL issuer
1145 certificate is validated separately in this case. Only enabled if
1146 an extended CRL support flag is set: this flag will enable additional
1147 CRL functionality in future.
1149 This work was sponsored by Google.
1152 *) Add support for policy mappings extension.
1154 This work was sponsored by Google.
1157 *) Fixes to pathlength constraint, self issued certificate handling,
1158 policy processing to align with RFC3280 and PKITS tests.
1160 This work was sponsored by Google.
1163 *) Support for name constraints certificate extension. DN, email, DNS
1164 and URI types are currently supported.
1166 This work was sponsored by Google.
1169 *) To cater for systems that provide a pointer-based thread ID rather
1170 than numeric, deprecate the current numeric thread ID mechanism and
1171 replace it with a structure and associated callback type. This
1172 mechanism allows a numeric "hash" to be extracted from a thread ID in
1173 either case, and on platforms where pointers are larger than 'long',
1174 mixing is done to help ensure the numeric 'hash' is usable even if it
1175 can't be guaranteed unique. The default mechanism is to use "&errno"
1176 as a pointer-based thread ID to distinguish between threads.
1178 Applications that want to provide their own thread IDs should now use
1179 CRYPTO_THREADID_set_callback() to register a callback that will call
1180 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
1182 Note that ERR_remove_state() is now deprecated, because it is tied
1183 to the assumption that thread IDs are numeric. ERR_remove_state(0)
1184 to free the current thread's error state should be replaced by
1185 ERR_remove_thread_state(NULL).
1187 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
1188 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
1189 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
1190 application was previously providing a numeric thread callback that
1191 was inappropriate for distinguishing threads, then uniqueness might
1192 have been obtained with &errno that happened immediately in the
1193 intermediate development versions of OpenSSL; this is no longer the
1194 case, the numeric thread callback will now override the automatic use
1196 [Geoff Thorpe, with help from Bodo Moeller]
1198 *) Initial support for different CRL issuing certificates. This covers a
1199 simple case where the self issued certificates in the chain exist and
1200 the real CRL issuer is higher in the existing chain.
1202 This work was sponsored by Google.
1205 *) Removed effectively defunct crypto/store from the build.
1208 *) Revamp of STACK to provide stronger type-checking. Still to come:
1209 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
1210 ASN1_STRING, CONF_VALUE.
1213 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
1214 RAM on SSL connections. This option can save about 34k per idle SSL.
1217 *) Revamp of LHASH to provide stronger type-checking. Still to come:
1218 STACK, TXT_DB, bsearch, qsort.
1221 *) Initial support for Cryptographic Message Syntax (aka CMS) based
1222 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
1223 support for data, signedData, compressedData, digestedData and
1224 encryptedData, envelopedData types included. Scripts to check against
1225 RFC4134 examples draft and interop and consistency checks of many
1226 content types and variants.
1229 *) Add options to enc utility to support use of zlib compression BIO.
1232 *) Extend mk1mf to support importing of options and assembly language
1233 files from Configure script, currently only included in VC-WIN32.
1234 The assembly language rules can now optionally generate the source
1235 files from the associated perl scripts.
1238 *) Implement remaining functionality needed to support GOST ciphersuites.
1239 Interop testing has been performed using CryptoPro implementations.
1240 [Victor B. Wagner <vitus@cryptocom.ru>]
1242 *) s390x assembler pack.
1245 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
1249 *) Implement Opaque PRF Input TLS extension as specified in
1250 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
1251 official specification yet and no extension type assignment by
1252 IANA exists, this extension (for now) will have to be explicitly
1253 enabled when building OpenSSL by providing the extension number
1254 to use. For example, specify an option
1256 -DTLSEXT_TYPE_opaque_prf_input=0x9527
1258 to the "config" or "Configure" script to enable the extension,
1259 assuming extension number 0x9527 (which is a completely arbitrary
1260 and unofficial assignment based on the MD5 hash of the Internet
1261 Draft). Note that by doing so, you potentially lose
1262 interoperability with other TLS implementations since these might
1263 be using the same extension number for other purposes.
1265 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
1266 opaque PRF input value to use in the handshake. This will create
1267 an interal copy of the length-'len' string at 'src', and will
1268 return non-zero for success.
1270 To get more control and flexibility, provide a callback function
1273 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
1274 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
1278 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
1281 Callback function 'cb' will be called in handshakes, and is
1282 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
1283 Argument 'arg' is for application purposes (the value as given to
1284 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
1285 be provided to the callback function). The callback function
1286 has to return non-zero to report success: usually 1 to use opaque
1287 PRF input just if possible, or 2 to enforce use of the opaque PRF
1288 input. In the latter case, the library will abort the handshake
1289 if opaque PRF input is not successfully negotiated.
1291 Arguments 'peerinput' and 'len' given to the callback function
1292 will always be NULL and 0 in the case of a client. A server will
1293 see the client's opaque PRF input through these variables if
1294 available (NULL and 0 otherwise). Note that if the server
1295 provides an opaque PRF input, the length must be the same as the
1296 length of the client's opaque PRF input.
1298 Note that the callback function will only be called when creating
1299 a new session (session resumption can resume whatever was
1300 previously negotiated), and will not be called in SSL 2.0
1301 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
1302 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
1303 for applications that need to enforce opaque PRF input.
1307 *) Update ssl code to support digests other than SHA1+MD5 for handshake
1310 [Victor B. Wagner <vitus@cryptocom.ru>]
1312 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1313 RFC4507bis. The encrypted ticket format is an encrypted encoded
1314 SSL_SESSION structure, that way new session features are automatically
1317 If a client application caches session in an SSL_SESSION structure
1318 support is transparent because tickets are now stored in the encoded
1321 The SSL_CTX structure automatically generates keys for ticket
1322 protection in servers so again support should be possible
1323 with no application modification.
1325 If a client or server wishes to disable RFC4507 support then the option
1326 SSL_OP_NO_TICKET can be set.
1328 Add a TLS extension debugging callback to allow the contents of any client
1329 or server extensions to be examined.
1331 This work was sponsored by Google.
1334 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
1335 OpenSSL should now compile cleanly on gcc 4.2
1336 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
1338 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
1339 support including streaming MAC support: this is required for GOST
1340 ciphersuite support.
1341 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
1343 *) Add option -stream to use PKCS#7 streaming in smime utility. New
1344 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
1345 to output in BER and PEM format.
1348 *) Experimental support for use of HMAC via EVP_PKEY interface. This
1349 allows HMAC to be handled via the EVP_DigestSign*() interface. The
1350 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
1351 ENGINE support for HMAC keys which are unextractable. New -mac and
1352 -macopt options to dgst utility.
1355 *) New option -sigopt to dgst utility. Update dgst to use
1356 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
1357 alternative signing paramaters such as X9.31 or PSS in the dgst
1361 *) Change ssl_cipher_apply_rule(), the internal function that does
1362 the work each time a ciphersuite string requests enabling
1363 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
1364 removing ("!foo+bar") a class of ciphersuites: Now it maintains
1365 the order of disabled ciphersuites such that those ciphersuites
1366 that most recently went from enabled to disabled not only stay
1367 in order with respect to each other, but also have higher priority
1368 than other disabled ciphersuites the next time ciphersuites are
1371 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
1372 the same ciphersuites as with "HIGH" alone, but in a specific
1373 order where the PSK ciphersuites come first (since they are the
1374 most recently disabled ciphersuites when "HIGH" is parsed).
1376 Also, change ssl_create_cipher_list() (using this new
1377 funcionality) such that between otherwise identical
1378 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
1382 *) Change ssl_create_cipher_list() so that it automatically
1383 arranges the ciphersuites in reasonable order before starting
1384 to process the rule string. Thus, the definition for "DEFAULT"
1385 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
1386 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
1387 This makes it much easier to arrive at a reasonable default order
1388 in applications for which anonymous ciphers are OK (meaning
1389 that you can't actually use DEFAULT).
1390 [Bodo Moeller; suggested by Victor Duchovni]
1392 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
1393 processing) into multiple integers instead of setting
1394 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
1395 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
1396 (These masks as well as the individual bit definitions are hidden
1397 away into the non-exported interface ssl/ssl_locl.h, so this
1398 change to the definition of the SSL_CIPHER structure shouldn't
1399 affect applications.) This give us more bits for each of these
1400 categories, so there is no longer a need to coagulate AES128 and
1401 AES256 into a single algorithm bit, and to coagulate Camellia128
1402 and Camellia256 into a single algorithm bit, which has led to all
1405 Thus, among other things, the kludge introduced in 0.9.7m and
1406 0.9.8e for masking out AES256 independently of AES128 or masking
1407 out Camellia256 independently of AES256 is not needed here in 0.9.9.
1409 With the change, we also introduce new ciphersuite aliases that
1410 so far were missing: "AES128", "AES256", "CAMELLIA128", and
1414 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
1415 Use the leftmost N bytes of the signature input if the input is
1416 larger than the prime q (with N being the size in bytes of q).
1419 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
1420 it yet and it is largely untested.
1423 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
1426 *) Initial incomplete changes to avoid need for function casts in OpenSSL
1427 some compilers (gcc 4.2 and later) reject their use. Safestack is
1428 reimplemented. Update ASN1 to avoid use of legacy functions.
1431 *) Win32/64 targets are linked with Winsock2.
1434 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
1435 to external functions. This can be used to increase CRL handling
1436 efficiency especially when CRLs are very large by (for example) storing
1437 the CRL revoked certificates in a database.
1440 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
1441 new CRLs added to a directory can be used. New command line option
1442 -verify_return_error to s_client and s_server. This causes real errors
1443 to be returned by the verify callback instead of carrying on no matter
1444 what. This reflects the way a "real world" verify callback would behave.
1447 *) GOST engine, supporting several GOST algorithms and public key formats.
1448 Kindly donated by Cryptocom.
1451 *) Partial support for Issuing Distribution Point CRL extension. CRLs
1452 partitioned by DP are handled but no indirect CRL or reason partitioning
1453 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
1454 selected via a scoring technique which handles IDP and AKID in CRLs.
1457 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
1458 will ultimately be used for all verify operations: this will remove the
1459 X509_STORE dependency on certificate verification and allow alternative
1460 lookup methods. X509_STORE based implementations of these two callbacks.
1463 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
1464 Modify get_crl() to find a valid (unexpired) CRL if possible.
1467 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
1468 this would be called X509_CRL_cmp() but that name is already used by
1469 a function that just compares CRL issuer names. Cache several CRL
1470 extensions in X509_CRL structure and cache CRLDP in X509.
1473 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
1474 this maps equivalent X509_NAME structures into a consistent structure.
1475 Name comparison can then be performed rapidly using memcmp().
1478 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
1482 *) Allow digests to supply their own micalg string for S/MIME type using
1483 the ctrl EVP_MD_CTRL_MICALG.
1486 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
1487 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
1488 ctrl. It can then customise the structure before and/or after signing
1492 *) New function OBJ_add_sigid() to allow application defined signature OIDs
1493 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
1494 to free up any added signature OIDs.
1497 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
1498 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
1499 digest and cipher tables. New options added to openssl utility:
1500 list-message-digest-algorithms and list-cipher-algorithms.
1503 *) Change the array representation of binary polynomials: the list
1504 of degrees of non-zero coefficients is now terminated with -1.
1505 Previously it was terminated with 0, which was also part of the
1506 value; thus, the array representation was not applicable to
1507 polynomials where t^0 has coefficient zero. This change makes
1508 the array representation useful in a more general context.
1511 *) Various modifications and fixes to SSL/TLS cipher string
1512 handling. For ECC, the code now distinguishes between fixed ECDH
1513 with RSA certificates on the one hand and with ECDSA certificates
1514 on the other hand, since these are separate ciphersuites. The
1515 unused code for Fortezza ciphersuites has been removed.
1517 For consistency with EDH, ephemeral ECDH is now called "EECDH"
1518 (not "ECDHE"). For consistency with the code for DH
1519 certificates, use of ECDH certificates is now considered ECDH
1520 authentication, not RSA or ECDSA authentication (the latter is
1521 merely the CA's signing algorithm and not actively used in the
1524 The temporary ciphersuite alias "ECCdraft" is no longer
1525 available, and ECC ciphersuites are no longer excluded from "ALL"
1526 and "DEFAULT". The following aliases now exist for RFC 4492
1527 ciphersuites, most of these by analogy with the DH case:
1529 kECDHr - ECDH cert, signed with RSA
1530 kECDHe - ECDH cert, signed with ECDSA
1531 kECDH - ECDH cert (signed with either RSA or ECDSA)
1532 kEECDH - ephemeral ECDH
1533 ECDH - ECDH cert or ephemeral ECDH
1539 AECDH - anonymous ECDH
1540 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
1544 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
1545 Use correct micalg parameters depending on digest(s) in signed message.
1548 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
1549 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
1552 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
1553 an engine to register a method. Add ENGINE lookups for methods and
1554 functional reference processing.
1557 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
1558 EVP_{Sign,Verify}* which allow an application to customise the signature
1562 *) New -resign option to smime utility. This adds one or more signers
1563 to an existing PKCS#7 signedData structure. Also -md option to use an
1564 alternative message digest algorithm for signing.
1567 *) Tidy up PKCS#7 routines and add new functions to make it easier to
1568 create PKCS7 structures containing multiple signers. Update smime
1569 application to support multiple signers.
1572 *) New -macalg option to pkcs12 utility to allow setting of an alternative
1576 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
1577 Reorganize PBE internals to lookup from a static table using NIDs,
1578 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
1579 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
1580 PRF which will be automatically used with PBES2.
1583 *) Replace the algorithm specific calls to generate keys in "req" with the
1587 *) Update PKCS#7 enveloped data routines to use new API. This is now
1588 supported by any public key method supporting the encrypt operation. A
1589 ctrl is added to allow the public key algorithm to examine or modify
1590 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
1594 *) Add a ctrl to asn1 method to allow a public key algorithm to express
1595 a default digest type to use. In most cases this will be SHA1 but some
1596 algorithms (such as GOST) need to specify an alternative digest. The
1597 return value indicates how strong the prefernce is 1 means optional and
1598 2 is mandatory (that is it is the only supported type). Modify
1599 ASN1_item_sign() to accept a NULL digest argument to indicate it should
1600 use the default md. Update openssl utilities to use the default digest
1601 type for signing if it is not explicitly indicated.
1604 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
1605 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
1606 signing method from the key type. This effectively removes the link
1607 between digests and public key types.
1610 *) Add an OID cross reference table and utility functions. Its purpose is to
1611 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1612 rsaEncryption. This will allow some of the algorithm specific hackery
1613 needed to use the correct OID to be removed.
1616 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1617 structures for PKCS7_sign(). They are now set up by the relevant public
1621 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1624 *) Add support for key derivation (agreement) in the API, DH method and
1628 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1629 public and private key formats. As a side effect these add additional
1630 command line functionality not previously available: DSA signatures can be
1631 generated and verified using pkeyutl and DH key support and generation in
1636 [Oliver Tappe <zooey@hirschkaefer.de>]
1638 *) New make target "install_html_docs" installs HTML renditions of the
1640 [Oliver Tappe <zooey@hirschkaefer.de>]
1642 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1643 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1644 support key and parameter generation and add initial key generation
1645 functionality for RSA.
1648 *) Add functions for main EVP_PKEY_method operations. The undocumented
1649 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1650 EVP_PKEY_{encrypt,decrypt}_old.
1653 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1654 key API, doesn't do much yet.
1657 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1658 public key algorithms. New option to openssl utility:
1659 "list-public-key-algorithms" to print out info.
1662 *) Implement the Supported Elliptic Curves Extension for
1663 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1666 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1667 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1670 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1671 utilities such as rsa, dsa, dsaparam etc except they process any key
1675 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1676 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1677 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1681 *) Initial support for pluggable public key ASN1.
1682 De-spaghettify the public key ASN1 handling. Move public and private
1683 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1684 algorithm specific handling to a single module within the relevant
1685 algorithm directory. Add functions to allow (near) opaque processing
1686 of public and private key structures.
1689 *) Implement the Supported Point Formats Extension for
1690 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1693 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1694 for the psk identity [hint] and the psk callback functions to the
1695 SSL_SESSION, SSL and SSL_CTX structure.
1698 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1702 SSL_CTX_use_psk_identity_hint
1703 SSL_get_psk_identity_hint
1704 SSL_get_psk_identity
1705 SSL_use_psk_identity_hint
1707 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1709 *) Add RFC 3161 compliant time stamp request creation, response generation
1710 and response verification functionality.
1711 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1713 *) Add initial support for TLS extensions, specifically for the server_name
1714 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1715 have new members for a host name. The SSL data structure has an
1716 additional member SSL_CTX *initial_ctx so that new sessions can be
1717 stored in that context to allow for session resumption, even after the
1718 SSL has been switched to a new SSL_CTX in reaction to a client's
1719 server_name extension.
1721 New functions (subject to change):
1723 SSL_get_servername()
1724 SSL_get_servername_type()
1727 New CTRL codes and macros (subject to change):
1729 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1730 - SSL_CTX_set_tlsext_servername_callback()
1731 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1732 - SSL_CTX_set_tlsext_servername_arg()
1733 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1735 openssl s_client has a new '-servername ...' option.
1737 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1738 '-key2 ...', '-servername_fatal' (subject to change). This allows
1739 testing the HostName extension for a specific single host name ('-cert'
1740 and '-key' remain fallbacks for handshakes without HostName
1741 negotiation). If the unrecogninzed_name alert has to be sent, this by
1742 default is a warning; it becomes fatal with the '-servername_fatal'
1745 [Peter Sylvester, Remy Allais, Christophe Renou]
1747 *) Whirlpool hash implementation is added.
1750 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1751 bn(64,32). Because of instruction set limitations it doesn't have
1752 any negative impact on performance. This was done mostly in order
1753 to make it possible to share assembler modules, such as bn_mul_mont
1754 implementations, between 32- and 64-bit builds without hassle.
1757 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1758 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1762 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1763 dedicated Montgomery multiplication procedure, is introduced.
1764 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1765 "64-bit" performance on certain 32-bit targets.
1768 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1769 in SSL structures. New SSL ctrl to set maximum send fragment size.
1770 Save memory by seeting the I/O buffer sizes dynamically instead of
1771 using the maximum available value.
1774 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1775 in addition to the text details.
1778 *) Very, very preliminary EXPERIMENTAL support for printing of general
1779 ASN1 structures. This currently produces rather ugly output and doesn't
1780 handle several customised structures at all.
1783 *) Integrated support for PVK file format and some related formats such
1784 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1785 these in the 'rsa' and 'dsa' utilities.
1788 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1791 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1792 place for the (very old) "NETSCAPE" format certificates which are now
1793 handled using new ASN1 code equivalents.
1796 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1797 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1798 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1801 *) Modify CRL distribution points extension code to print out previously
1802 unsupported fields. Enhance extension setting code to allow setting of
1806 *) Add print and set support for Issuing Distribution Point CRL extension.
1809 *) Change 'Configure' script to enable Camellia by default.
1812 Changes between 0.9.8s and 0.9.8t [18 Jan 2012]
1814 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
1815 Thanks to Antonio Martin, Enterprise Secure Access Research and
1816 Development, Cisco Systems, Inc. for discovering this bug and
1817 preparing a fix. (CVE-2012-0050)
1820 Changes between 0.9.8r and 0.9.8s [4 Jan 2012]
1822 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
1823 of the Vaudenay padding oracle attack on CBC mode encryption
1824 which enables an efficient plaintext recovery attack against
1825 the OpenSSL implementation of DTLS. Their attack exploits timing
1826 differences arising during decryption processing. A research
1827 paper describing this attack can be found at:
1828 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
1829 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1830 Security Group at Royal Holloway, University of London
1831 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
1832 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
1833 for preparing the fix. (CVE-2011-4108)
1834 [Robin Seggelmann, Michael Tuexen]
1836 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109)
1837 [Ben Laurie, Kasper <ekasper@google.com>]
1839 *) Clear bytes used for block padding of SSL 3.0 records.
1841 [Adam Langley (Google)]
1843 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
1844 Kadianakis <desnacked@gmail.com> for discovering this issue and
1845 Adam Langley for preparing the fix. (CVE-2011-4619)
1846 [Adam Langley (Google)]
1848 *) Prevent malformed RFC3779 data triggering an assertion failure.
1849 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
1850 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
1851 [Rob Austein <sra@hactrn.net>]
1853 *) Fix ssl_ciph.c set-up race.
1854 [Adam Langley (Google)]
1856 *) Fix spurious failures in ecdsatest.c.
1857 [Emilia Käsper (Google)]
1859 *) Fix the BIO_f_buffer() implementation (which was mixing different
1860 interpretations of the '..._len' fields).
1861 [Adam Langley (Google)]
1863 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1864 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1865 threads won't reuse the same blinding coefficients.
1867 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1868 lock to call BN_BLINDING_invert_ex, and avoids one use of
1869 BN_BLINDING_update for each BN_BLINDING structure (previously,
1870 the last update always remained unused).
1871 [Emilia Käsper (Google)]
1873 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1874 for multi-threaded use of ECDH.
1875 [Adam Langley (Google)]
1877 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1880 *) Add protection against ECDSA timing attacks as mentioned in the paper
1881 by Billy Bob Brumley and Nicola Tuveri, see:
1883 http://eprint.iacr.org/2011/232.pdf
1885 [Billy Bob Brumley and Nicola Tuveri]
1887 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1889 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1890 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1892 *) Fix bug in string printing code: if *any* escaping is enabled we must
1893 escape the escape character (backslash) or the resulting string is
1897 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1899 *) Disable code workaround for ancient and obsolete Netscape browsers
1900 and servers: an attacker can use it in a ciphersuite downgrade attack.
1901 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1904 *) Fixed J-PAKE implementation error, originally discovered by
1905 Sebastien Martini, further info and confirmation from Stefan
1906 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1909 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1911 *) Fix extension code to avoid race conditions which can result in a buffer
1912 overrun vulnerability: resumed sessions must not be modified as they can
1913 be shared by multiple threads. CVE-2010-3864
1916 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1919 *) Don't reencode certificate when calculating signature: cache and use
1920 the original encoding instead. This makes signature verification of
1921 some broken encodings work correctly.
1924 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1925 is also one of the inputs.
1926 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1928 *) Don't repeatedly append PBE algorithms to table if they already exist.
1929 Sort table on each new add. This effectively makes the table read only
1930 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1934 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1936 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1939 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1940 access or freeing data twice (CVE-2010-0742)
1941 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1943 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1944 common in certificates and some applications which only call
1945 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1949 Reduce copying into .apps and .test in makevms.com
1950 Don't try to use blank CA certificate in CA.com
1951 Allow use of C files from original directories in maketests.com
1952 [Steven M. Schweda" <sms@antinode.info>]
1954 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1956 *) When rejecting SSL/TLS records due to an incorrect version number, never
1957 update s->server with a new major version number. As of
1958 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1959 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1960 the previous behavior could result in a read attempt at NULL when
1961 receiving specific incorrect SSL/TLS records once record payload
1962 protection is active. (CVE-2010-0740)
1963 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1965 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1966 could be crashed if the relevant tables were not present (e.g. chrooted).
1967 [Tomas Hoger <thoger@redhat.com>]
1969 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1971 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1972 [Martin Olsson, Neel Mehta]
1974 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1975 accommodate for stack sorting, always a write lock!).
1978 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1979 excessive delays in the RAND_poll(): over a minute. As a workaround
1980 include a time check in the inner Heap32Next loop too.
1983 *) The code that handled flushing of data in SSL/TLS originally used the
1984 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1985 the problem outlined in PR#1949. The fix suggested there however can
1986 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1987 of Apache). So instead simplify the code to flush unconditionally.
1988 This should be fine since flushing with no data to flush is a no op.
1991 *) Handle TLS versions 2.0 and later properly and correctly use the
1992 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1993 off ancient servers have a habit of sticking around for a while...
1996 *) Modify compression code so it frees up structures without using the
1997 ex_data callbacks. This works around a problem where some applications
1998 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1999 restarting) then use compression (e.g. SSL with compression) later.
2000 This results in significant per-connection memory leaks and
2001 has caused some security issues including CVE-2008-1678 and
2005 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
2006 change when encrypting or decrypting.
2009 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
2010 connect and renegotiate with servers which do not support RI.
2011 Until RI is more widely deployed this option is enabled by default.
2014 *) Add "missing" ssl ctrls to clear options and mode.
2017 *) If client attempts to renegotiate and doesn't support RI respond with
2018 a no_renegotiation alert as required by RFC5746. Some renegotiating
2019 TLS clients will continue a connection gracefully when they receive
2020 the alert. Unfortunately OpenSSL mishandled this alert and would hang
2021 waiting for a server hello which it will never receive. Now we treat a
2022 received no_renegotiation alert as a fatal error. This is because
2023 applications requesting a renegotiation might well expect it to succeed
2024 and would have no code in place to handle the server denying it so the
2025 only safe thing to do is to terminate the connection.
2028 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
2029 peer supports secure renegotiation and 0 otherwise. Print out peer
2030 renegotiation support in s_client/s_server.
2033 *) Replace the highly broken and deprecated SPKAC certification method with
2034 the updated NID creation version. This should correctly handle UTF8.
2037 *) Implement RFC5746. Re-enable renegotiation but require the extension
2038 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
2039 turns out to be a bad idea. It has been replaced by
2040 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
2041 SSL_CTX_set_options(). This is really not recommended unless you
2042 know what you are doing.
2043 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
2045 *) Fixes to stateless session resumption handling. Use initial_ctx when
2046 issuing and attempting to decrypt tickets in case it has changed during
2047 servername handling. Use a non-zero length session ID when attempting
2048 stateless session resumption: this makes it possible to determine if
2049 a resumption has occurred immediately after receiving server hello
2050 (several places in OpenSSL subtly assume this) instead of later in
2054 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
2055 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
2056 fixes for a few places where the return code is not checked
2058 [Julia Lawall <julia@diku.dk>]
2060 *) Add --strict-warnings option to Configure script to include devteam
2061 warnings in other configurations.
2064 *) Add support for --libdir option and LIBDIR variable in makefiles. This
2065 makes it possible to install openssl libraries in locations which
2066 have names other than "lib", for example "/usr/lib64" which some
2068 [Steve Henson, based on patch from Jeremy Utley]
2070 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
2071 X690 8.9.12 and can produce some misleading textual output of OIDs.
2072 [Steve Henson, reported by Dan Kaminsky]
2074 *) Delete MD2 from algorithm tables. This follows the recommendation in
2075 several standards that it is not used in new applications due to
2076 several cryptographic weaknesses. For binary compatibility reasons
2077 the MD2 API is still compiled in by default.
2080 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
2084 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
2085 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
2087 [Guenter <lists@gknw.net>]
2089 *) Fix the server certificate chain building code to use X509_verify_cert(),
2090 it used to have an ad-hoc builder which was unable to cope with anything
2091 other than a simple chain.
2092 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
2094 *) Don't check self signed certificate signatures in X509_verify_cert()
2095 by default (a flag can override this): it just wastes time without
2096 adding any security. As a useful side effect self signed root CAs
2097 with non-FIPS digests are now usable in FIPS mode.
2100 *) In dtls1_process_out_of_seq_message() the check if the current message
2101 is already buffered was missing. For every new message was memory
2102 allocated, allowing an attacker to perform an denial of service attack
2103 with sending out of seq handshake messages until there is no memory
2104 left. Additionally every future messege was buffered, even if the
2105 sequence number made no sense and would be part of another handshake.
2106 So only messages with sequence numbers less than 10 in advance will be
2107 buffered. (CVE-2009-1378)
2108 [Robin Seggelmann, discovered by Daniel Mentz]
2110 *) Records are buffered if they arrive with a future epoch to be
2111 processed after finishing the corresponding handshake. There is
2112 currently no limitation to this buffer allowing an attacker to perform
2113 a DOS attack with sending records with future epochs until there is no
2114 memory left. This patch adds the pqueue_size() function to detemine
2115 the size of a buffer and limits the record buffer to 100 entries.
2117 [Robin Seggelmann, discovered by Daniel Mentz]
2119 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
2120 parent structure is freed. (CVE-2009-1379)
2123 *) Handle non-blocking I/O properly in SSL_shutdown() call.
2124 [Darryl Miles <darryl-mailinglists@netbauds.net>]
2127 [Ilya O. <vrghost@gmail.com>]
2129 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
2131 *) Disable renegotiation completely - this fixes a severe security
2132 problem (CVE-2009-3555) at the cost of breaking all
2133 renegotiation. Renegotiation can be re-enabled by setting
2134 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
2135 run-time. This is really not recommended unless you know what
2139 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
2141 *) Don't set val to NULL when freeing up structures, it is freed up by
2142 underlying code. If sizeof(void *) > sizeof(long) this can result in
2143 zeroing past the valid field. (CVE-2009-0789)
2144 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
2146 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
2147 checked correctly. This would allow some invalid signed attributes to
2148 appear to verify correctly. (CVE-2009-0591)
2149 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2151 *) Reject UniversalString and BMPString types with invalid lengths. This
2152 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
2153 a legal length. (CVE-2009-0590)
2156 *) Set S/MIME signing as the default purpose rather than setting it
2157 unconditionally. This allows applications to override it at the store
2161 *) Permit restricted recursion of ASN1 strings. This is needed in practice
2162 to handle some structures.
2165 *) Improve efficiency of mem_gets: don't search whole buffer each time
2167 [Jeremy Shapiro <jnshapir@us.ibm.com>]
2169 *) New -hex option for openssl rand.
2172 *) Print out UTF8String and NumericString when parsing ASN1.
2175 *) Support NumericString type for name components.
2178 *) Allow CC in the environment to override the automatically chosen
2179 compiler. Note that nothing is done to ensure flags work with the
2183 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
2185 *) Properly check EVP_VerifyFinal() and similar return values
2187 [Ben Laurie, Bodo Moeller, Google Security Team]
2189 *) Enable TLS extensions by default.
2192 *) Allow the CHIL engine to be loaded, whether the application is
2193 multithreaded or not. (This does not release the developer from the
2194 obligation to set up the dynamic locking callbacks.)
2195 [Sander Temme <sander@temme.net>]
2197 *) Use correct exit code if there is an error in dgst command.
2198 [Steve Henson; problem pointed out by Roland Dirlewanger]
2200 *) Tweak Configure so that you need to say "experimental-jpake" to enable
2201 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
2204 *) Add experimental JPAKE support, including demo authentication in
2205 s_client and s_server.
2208 *) Set the comparison function in v3_addr_canonize().
2209 [Rob Austein <sra@hactrn.net>]
2211 *) Add support for XMPP STARTTLS in s_client.
2212 [Philip Paeps <philip@freebsd.org>]
2214 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
2215 to ensure that even with this option, only ciphersuites in the
2216 server's preference list will be accepted. (Note that the option
2217 applies only when resuming a session, so the earlier behavior was
2218 just about the algorithm choice for symmetric cryptography.)
2221 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
2223 *) Fix NULL pointer dereference if a DTLS server received
2224 ChangeCipherSpec as first record (CVE-2009-1386).
2227 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
2228 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
2231 *) The fix in 0.9.8c that supposedly got rid of unsafe
2232 double-checked locking was incomplete for RSA blinding,
2233 addressing just one layer of what turns out to have been
2234 doubly unsafe triple-checked locking.
2236 So now fix this for real by retiring the MONT_HELPER macro
2237 in crypto/rsa/rsa_eay.c.
2239 [Bodo Moeller; problem pointed out by Marius Schilder]
2241 *) Various precautionary measures:
2243 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
2245 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
2246 (NB: This would require knowledge of the secret session ticket key
2247 to exploit, in which case you'd be SOL either way.)
2249 - Change bn_nist.c so that it will properly handle input BIGNUMs
2250 outside the expected range.
2252 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
2255 [Neel Mehta, Bodo Moeller]
2257 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
2258 the load fails. Useful for distros.
2259 [Ben Laurie and the FreeBSD team]
2261 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
2264 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
2267 *) Expand ENGINE to support engine supplied SSL client certificate functions.
2269 This work was sponsored by Logica.
2272 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
2273 keystores. Support for SSL/TLS client authentication too.
2274 Not compiled unless enable-capieng specified to Configure.
2276 This work was sponsored by Logica.
2279 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
2280 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
2281 attribute creation routines such as certifcate requests and PKCS#12
2285 Changes between 0.9.8g and 0.9.8h [28 May 2008]
2287 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
2288 handshake which could lead to a cilent crash as found using the
2289 Codenomicon TLS test suite (CVE-2008-1672)
2290 [Steve Henson, Mark Cox]
2292 *) Fix double free in TLS server name extensions which could lead to
2293 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
2296 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
2298 Clear the error queue to ensure that error entries left from
2299 older function calls do not interfere with the correct operation.
2300 [Lutz Jaenicke, Erik de Castro Lopo]
2302 *) Remove root CA certificates of commercial CAs:
2304 The OpenSSL project does not recommend any specific CA and does not
2305 have any policy with respect to including or excluding any CA.
2306 Therefore it does not make any sense to ship an arbitrary selection
2307 of root CA certificates with the OpenSSL software.
2310 *) RSA OAEP patches to fix two separate invalid memory reads.
2311 The first one involves inputs when 'lzero' is greater than
2312 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
2313 before the beginning of from). The second one involves inputs where
2314 the 'db' section contains nothing but zeroes (there is a one-byte
2315 invalid read after the end of 'db').
2316 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2318 *) Partial backport from 0.9.9-dev:
2320 Introduce bn_mul_mont (dedicated Montgomery multiplication
2321 procedure) as a candidate for BIGNUM assembler implementation.
2322 While 0.9.9-dev uses assembler for various architectures, only
2323 x86_64 is available by default here in the 0.9.8 branch, and
2324 32-bit x86 is available through a compile-time setting.
2326 To try the 32-bit x86 assembler implementation, use Configure
2327 option "enable-montasm" (which exists only for this backport).
2329 As "enable-montasm" for 32-bit x86 disclaims code stability
2330 anyway, in this constellation we activate additional code
2331 backported from 0.9.9-dev for further performance improvements,
2332 namely BN_from_montgomery_word. (To enable this otherwise,
2333 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
2335 [Andy Polyakov (backport partially by Bodo Moeller)]
2337 *) Add TLS session ticket callback. This allows an application to set
2338 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
2339 values. This is useful for key rollover for example where several key
2340 sets may exist with different names.
2343 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
2344 This was broken until now in 0.9.8 releases, such that the only way
2345 a registered ENGINE could be used (assuming it initialises
2346 successfully on the host) was to explicitly set it as the default
2347 for the relevant algorithms. This is in contradiction with 0.9.7
2348 behaviour and the documentation. With this fix, when an ENGINE is
2349 registered into a given algorithm's table of implementations, the
2350 'uptodate' flag is reset so that auto-discovery will be used next
2351 time a new context for that algorithm attempts to select an
2353 [Ian Lister (tweaked by Geoff Thorpe)]
2355 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
2356 implemention in the following ways:
2358 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
2361 Lack of BER streaming support means one pass streaming processing is
2362 only supported if data is detached: setting the streaming flag is
2363 ignored for embedded content.
2365 CMS support is disabled by default and must be explicitly enabled
2366 with the enable-cms configuration option.
2369 *) Update the GMP engine glue to do direct copies between BIGNUM and
2370 mpz_t when openssl and GMP use the same limb size. Otherwise the
2371 existing "conversion via a text string export" trick is still used.
2372 [Paul Sheer <paulsheer@gmail.com>]
2374 *) Zlib compression BIO. This is a filter BIO which compressed and
2375 uncompresses any data passed through it.
2378 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
2379 RFC3394 compatible AES key wrapping.
2382 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
2383 sets string data without copying. X509_ALGOR_set0() and
2384 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
2385 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
2386 from an X509_ATTRIBUTE structure optionally checking it occurs only
2387 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
2391 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
2392 to get the expected BN_FLG_CONSTTIME behavior.
2393 [Bodo Moeller (Google)]
2397 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
2398 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
2399 - added some more tests to do_tests.pl
2400 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
2401 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
2402 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
2403 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
2404 - various changes to netware.pl to enable gcc-cross builds on Win32
2406 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
2407 - various changes to fix missing prototype warnings
2408 - fixed x86nasm.pl to create correct asm files for NASM COFF output
2409 - added AES, WHIRLPOOL and CPUID assembler code to build files
2410 - added missing AES assembler make rules to mk1mf.pl
2411 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
2412 [Guenter Knauf <eflash@gmx.net>]
2414 *) Implement certificate status request TLS extension defined in RFC3546.
2415 A client can set the appropriate parameters and receive the encoded
2416 OCSP response via a callback. A server can query the supplied parameters
2417 and set the encoded OCSP response in the callback. Add simplified examples
2418 to s_client and s_server.
2421 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
2423 *) Fix various bugs:
2424 + Binary incompatibility of ssl_ctx_st structure
2425 + DTLS interoperation with non-compliant servers
2426 + Don't call get_session_cb() without proposed session
2427 + Fix ia64 assembler code
2428 [Andy Polyakov, Steve Henson]
2430 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
2432 *) DTLS Handshake overhaul. There were longstanding issues with
2433 OpenSSL DTLS implementation, which were making it impossible for
2434 RFC 4347 compliant client to communicate with OpenSSL server.
2435 Unfortunately just fixing these incompatibilities would "cut off"
2436 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
2437 server keeps tolerating non RFC compliant syntax. The opposite is
2438 not true, 0.9.8f client can not communicate with earlier server.
2439 This update even addresses CVE-2007-4995.
2442 *) Changes to avoid need for function casts in OpenSSL: some compilers
2443 (gcc 4.2 and later) reject their use.
2444 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
2447 *) Add RFC4507 support to OpenSSL. This includes the corrections in
2448 RFC4507bis. The encrypted ticket format is an encrypted encoded
2449 SSL_SESSION structure, that way new session features are automatically
2452 If a client application caches session in an SSL_SESSION structure
2453 support is transparent because tickets are now stored in the encoded
2456 The SSL_CTX structure automatically generates keys for ticket
2457 protection in servers so again support should be possible
2458 with no application modification.
2460 If a client or server wishes to disable RFC4507 support then the option
2461 SSL_OP_NO_TICKET can be set.
2463 Add a TLS extension debugging callback to allow the contents of any client
2464 or server extensions to be examined.
2466 This work was sponsored by Google.
2469 *) Add initial support for TLS extensions, specifically for the server_name
2470 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
2471 have new members for a host name. The SSL data structure has an
2472 additional member SSL_CTX *initial_ctx so that new sessions can be
2473 stored in that context to allow for session resumption, even after the
2474 SSL has been switched to a new SSL_CTX in reaction to a client's
2475 server_name extension.
2477 New functions (subject to change):
2479 SSL_get_servername()
2480 SSL_get_servername_type()
2483 New CTRL codes and macros (subject to change):
2485 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2486 - SSL_CTX_set_tlsext_servername_callback()
2487 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
2488 - SSL_CTX_set_tlsext_servername_arg()
2489 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
2491 openssl s_client has a new '-servername ...' option.
2493 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2494 '-key2 ...', '-servername_fatal' (subject to change). This allows
2495 testing the HostName extension for a specific single host name ('-cert'
2496 and '-key' remain fallbacks for handshakes without HostName
2497 negotiation). If the unrecogninzed_name alert has to be sent, this by
2498 default is a warning; it becomes fatal with the '-servername_fatal'
2501 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
2503 *) Add AES and SSE2 assembly language support to VC++ build.
2506 *) Mitigate attack on final subtraction in Montgomery reduction.
2509 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
2510 (which previously caused an internal error).
2513 *) Squeeze another 10% out of IGE mode when in != out.
2516 *) AES IGE mode speedup.
2517 [Dean Gaudet (Google)]
2519 *) Add the Korean symmetric 128-bit cipher SEED (see
2520 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
2521 add SEED ciphersuites from RFC 4162:
2523 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
2524 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
2525 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
2526 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
2528 To minimize changes between patchlevels in the OpenSSL 0.9.8
2529 series, SEED remains excluded from compilation unless OpenSSL
2530 is configured with 'enable-seed'.
2531 [KISA, Bodo Moeller]
2533 *) Mitigate branch prediction attacks, which can be practical if a
2534 single processor is shared, allowing a spy process to extract
2535 information. For detailed background information, see
2536 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
2537 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
2538 and Necessary Software Countermeasures"). The core of the change
2539 are new versions BN_div_no_branch() and
2540 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
2541 respectively, which are slower, but avoid the security-relevant
2542 conditional branches. These are automatically called by BN_div()
2543 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
2544 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
2545 remove a conditional branch.
2547 BN_FLG_CONSTTIME is the new name for the previous
2548 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
2549 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
2550 in the exponent causes BN_mod_exp_mont() to use the alternative
2551 implementation in BN_mod_exp_mont_consttime().) The old name
2552 remains as a deprecated alias.
2554 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
2555 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
2556 constant-time implementations for more than just exponentiation.
2557 Here too the old name is kept as a deprecated alias.
2559 BN_BLINDING_new() will now use BN_dup() for the modulus so that
2560 the BN_BLINDING structure gets an independent copy of the
2561 modulus. This means that the previous "BIGNUM *m" argument to
2562 BN_BLINDING_new() and to BN_BLINDING_create_param() now
2563 essentially becomes "const BIGNUM *m", although we can't actually
2564 change this in the header file before 0.9.9. It allows
2565 RSA_setup_blinding() to use BN_with_flags() on the modulus to
2566 enable BN_FLG_CONSTTIME.
2568 [Matthew D Wood (Intel Corp)]
2570 *) In the SSL/TLS server implementation, be strict about session ID
2571 context matching (which matters if an application uses a single
2572 external cache for different purposes). Previously,
2573 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2574 set. This did ensure strict client verification, but meant that,
2575 with applications using a single external cache for quite
2576 different requirements, clients could circumvent ciphersuite
2577 restrictions for a given session ID context by starting a session
2578 in a different context.
2581 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2582 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2583 authentication-only ciphersuites.
2586 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
2587 not complete and could lead to a possible single byte overflow
2588 (CVE-2007-5135) [Ben Laurie]
2590 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
2592 *) Since AES128 and AES256 (and similarly Camellia128 and
2593 Camellia256) share a single mask bit in the logic of
2594 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2595 kludge to work properly if AES128 is available and AES256 isn't
2596 (or if Camellia128 is available and Camellia256 isn't).
2599 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
2600 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
2601 When a point or a seed is encoded in a BIT STRING, we need to
2602 prevent the removal of trailing zero bits to get the proper DER
2603 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
2604 of a NamedBitList, for which trailing 0 bits need to be removed.)
2607 *) Have SSL/TLS server implementation tolerate "mismatched" record
2608 protocol version while receiving ClientHello even if the
2609 ClientHello is fragmented. (The server can't insist on the
2610 particular protocol version it has chosen before the ServerHello
2611 message has informed the client about his choice.)
2614 *) Add RFC 3779 support.
2615 [Rob Austein for ARIN, Ben Laurie]
2617 *) Load error codes if they are not already present instead of using a
2618 static variable. This allows them to be cleanly unloaded and reloaded.
2619 Improve header file function name parsing.
2622 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
2623 or CAPABILITY handshake as required by RFCs.
2626 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
2628 *) Introduce limits to prevent malicious keys being able to
2629 cause a denial of service. (CVE-2006-2940)
2630 [Steve Henson, Bodo Moeller]
2632 *) Fix ASN.1 parsing of certain invalid structures that can result
2633 in a denial of service. (CVE-2006-2937) [Steve Henson]
2635 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2636 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2638 *) Fix SSL client code which could crash if connecting to a
2639 malicious SSLv2 server. (CVE-2006-4343)
2640 [Tavis Ormandy and Will Drewry, Google Security Team]
2642 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
2643 match only those. Before that, "AES256-SHA" would be interpreted
2644 as a pattern and match "AES128-SHA" too (since AES128-SHA got
2645 the same strength classification in 0.9.7h) as we currently only
2646 have a single AES bit in the ciphersuite description bitmap.
2647 That change, however, also applied to ciphersuite strings such as
2648 "RC4-MD5" that intentionally matched multiple ciphersuites --
2649 namely, SSL 2.0 ciphersuites in addition to the more common ones
2650 from SSL 3.0/TLS 1.0.
2652 So we change the selection algorithm again: Naming an explicit
2653 ciphersuite selects this one ciphersuite, and any other similar
2654 ciphersuite (same bitmap) from *other* protocol versions.
2655 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2656 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
2658 Since SSL 2.0 does not have any ciphersuites for which the
2659 128/256 bit distinction would be relevant, this works for now.
2660 The proper fix will be to use different bits for AES128 and
2661 AES256, which would have avoided the problems from the beginning;
2662 however, bits are scarce, so we can only do this in a new release
2663 (not just a patchlevel) when we can change the SSL_CIPHER
2664 definition to split the single 'unsigned long mask' bitmap into
2665 multiple values to extend the available space.
2669 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2671 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2672 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2674 *) Add AES IGE and biIGE modes.
2677 *) Change the Unix randomness entropy gathering to use poll() when
2678 possible instead of select(), since the latter has some
2679 undesirable limitations.
2680 [Darryl Miles via Richard Levitte and Bodo Moeller]
2682 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2683 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2684 cannot be implicitly activated as part of, e.g., the "AES" alias.
2685 However, please upgrade to OpenSSL 0.9.9[-dev] for
2686 non-experimental use of the ECC ciphersuites to get TLS extension
2687 support, which is required for curve and point format negotiation
2688 to avoid potential handshake problems.
2691 *) Disable rogue ciphersuites:
2693 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2694 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2695 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2697 The latter two were purportedly from
2698 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2701 Also deactivate the remaining ciphersuites from
2702 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2703 unofficial, and the ID has long expired.
2706 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2707 dual-core machines) and other potential thread-safety issues.
2710 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2711 versions), which is now available for royalty-free use
2712 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2713 Also, add Camellia TLS ciphersuites from RFC 4132.
2715 To minimize changes between patchlevels in the OpenSSL 0.9.8
2716 series, Camellia remains excluded from compilation unless OpenSSL
2717 is configured with 'enable-camellia'.
2720 *) Disable the padding bug check when compression is in use. The padding
2721 bug check assumes the first packet is of even length, this is not
2722 necessarily true if compresssion is enabled and can result in false
2723 positives causing handshake failure. The actual bug test is ancient
2724 code so it is hoped that implementations will either have fixed it by
2725 now or any which still have the bug do not support compression.
2728 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2730 *) When applying a cipher rule check to see if string match is an explicit
2731 cipher suite and only match that one cipher suite if it is.
2734 *) Link in manifests for VC++ if needed.
2735 [Austin Ziegler <halostatue@gmail.com>]
2737 *) Update support for ECC-based TLS ciphersuites according to
2738 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2739 TLS extensions, which are supported starting with the 0.9.9
2740 branch, not in the OpenSSL 0.9.8 branch).
2743 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2744 opaque EVP_CIPHER_CTX handling.
2747 *) Fixes and enhancements to zlib compression code. We now only use
2748 "zlib1.dll" and use the default __cdecl calling convention on Win32
2749 to conform with the standards mentioned here:
2750 http://www.zlib.net/DLL_FAQ.txt
2751 Static zlib linking now works on Windows and the new --with-zlib-include
2752 --with-zlib-lib options to Configure can be used to supply the location
2753 of the headers and library. Gracefully handle case where zlib library
2757 *) Several fixes and enhancements to the OID generation code. The old code
2758 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2759 handle numbers larger than ULONG_MAX, truncated printing and had a
2760 non standard OBJ_obj2txt() behaviour.
2763 *) Add support for building of engines under engine/ as shared libraries
2764 under VC++ build system.
2767 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2768 Hopefully, we will not see any false combination of paths any more.
2771 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2773 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2774 (part of SSL_OP_ALL). This option used to disable the
2775 countermeasure against man-in-the-middle protocol-version
2776 rollback in the SSL 2.0 server implementation, which is a bad
2777 idea. (CVE-2005-2969)
2779 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2780 for Information Security, National Institute of Advanced Industrial
2781 Science and Technology [AIST], Japan)]
2783 *) Add two function to clear and return the verify parameter flags.
2786 *) Keep cipherlists sorted in the source instead of sorting them at
2787 runtime, thus removing the need for a lock.
2790 *) Avoid some small subgroup attacks in Diffie-Hellman.
2791 [Nick Mathewson and Ben Laurie]
2793 *) Add functions for well-known primes.
2796 *) Extended Windows CE support.
2797 [Satoshi Nakamura and Andy Polyakov]
2799 *) Initialize SSL_METHOD structures at compile time instead of during
2800 runtime, thus removing the need for a lock.
2803 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2804 attempting to decrypt each encrypted key in turn. Add support to
2808 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2810 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2813 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2816 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2817 key into the same file any more.
2820 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2823 *) Add -utf8 command line and config file option to 'ca'.
2824 [Stefan <stf@udoma.org]
2826 *) Removed the macro des_crypt(), as it seems to conflict with some
2827 libraries. Use DES_crypt().
2830 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2831 involves renaming the source and generated shared-libs for
2832 both. The engines will accept the corrected or legacy ids
2833 ('ncipher' and '4758_cca' respectively) when binding. NB,
2834 this only applies when building 'shared'.
2835 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2837 *) Add attribute functions to EVP_PKEY structure. Modify
2838 PKCS12_create() to recognize a CSP name attribute and
2839 use it. Make -CSP option work again in pkcs12 utility.
2842 *) Add new functionality to the bn blinding code:
2843 - automatic re-creation of the BN_BLINDING parameters after
2844 a fixed number of uses (currently 32)
2845 - add new function for parameter creation
2846 - introduce flags to control the update behaviour of the
2847 BN_BLINDING parameters
2848 - hide BN_BLINDING structure
2849 Add a second BN_BLINDING slot to the RSA structure to improve
2850 performance when a single RSA object is shared among several
2854 *) Add support for DTLS.
2855 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2857 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2858 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2861 *) Remove buggy and incompletet DH cert support from
2862 ssl/ssl_rsa.c and ssl/s3_both.c
2865 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2866 the apps/openssl applications.
2869 *) Compile clean with "-Wall -Wmissing-prototypes
2870 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2871 DEBUG_SAFESTACK must also be set.
2874 *) Change ./Configure so that certain algorithms can be disabled by default.
2875 The new counterpiece to "no-xxx" is "enable-xxx".
2877 The patented RC5 and MDC2 algorithms will now be disabled unless
2878 "enable-rc5" and "enable-mdc2", respectively, are specified.
2880 (IDEA remains enabled despite being patented. This is because IDEA
2881 is frequently required for interoperability, and there is no license
2882 fee for non-commercial use. As before, "no-idea" can be used to
2883 avoid this algorithm.)
2887 *) Add processing of proxy certificates (see RFC 3820). This work was
2888 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2889 EGEE (Enabling Grids for E-science in Europe).
2892 *) RC4 performance overhaul on modern architectures/implementations, such
2893 as Intel P4, IA-64 and AMD64.
2896 *) New utility extract-section.pl. This can be used specify an alternative
2897 section number in a pod file instead of having to treat each file as
2898 a separate case in Makefile. This can be done by adding two lines to the
2901 =for comment openssl_section:XXX
2903 The blank line is mandatory.
2907 *) New arguments -certform, -keyform and -pass for s_client and s_server
2908 to allow alternative format key and certificate files and passphrase
2912 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2913 update associated structures and add various utility functions.
2915 Add new policy related verify parameters, include policy checking in
2916 standard verify code. Enhance 'smime' application with extra parameters
2917 to support policy checking and print out.
2920 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2921 Nehemiah processors. These extensions support AES encryption in hardware
2922 as well as RNG (though RNG support is currently disabled).
2923 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2925 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2928 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2929 [Andy Polyakov and a number of other people]
2931 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2932 implementation contributed by IBM.
2933 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2935 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2936 exponent rather than 'unsigned long'. There is a corresponding change to
2937 the new 'rsa_keygen' element of the RSA_METHOD structure.
2938 [Jelte Jansen, Geoff Thorpe]
2940 *) Functionality for creating the initial serial number file is now
2941 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2943 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2944 number file to 1, which is bound to cause problems. To avoid
2945 the problems while respecting compatibility between different 0.9.7
2946 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2947 CA.pl for serial number initialization. With the new release 0.9.8,
2948 we can fix the problem directly in the 'ca' utility.)
2951 *) Reduced header interdepencies by declaring more opaque objects in
2952 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2953 give fewer recursive includes, which could break lazy source code - so
2954 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2955 developers should define this symbol when building and using openssl to
2956 ensure they track the recommended behaviour, interfaces, [etc], but
2957 backwards-compatible behaviour prevails when this isn't defined.
2960 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2963 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2964 This will generate a random key of the appropriate length based on the
2965 cipher context. The EVP_CIPHER can provide its own random key generation
2966 routine to support keys of a specific form. This is used in the des and
2967 3des routines to generate a key of the correct parity. Update S/MIME
2968 code to use new functions and hence generate correct parity DES keys.
2969 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2970 valid (weak or incorrect parity).
2973 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2974 as looking them up. This is useful when the verified structure may contain
2975 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2976 present unless the new PKCS7_NO_CRL flag is asserted.
2979 *) Extend ASN1 oid configuration module. It now additionally accepts the
2982 shortName = some long name, 1.2.3.4
2985 *) Reimplemented the BN_CTX implementation. There is now no more static
2986 limitation on the number of variables it can handle nor the depth of the
2987 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2988 information can now expand as required, and rather than having a single
2989 static array of bignums, BN_CTX now uses a linked-list of such arrays
2990 allowing it to expand on demand whilst maintaining the usefulness of
2991 BN_CTX's "bundling".
2994 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2995 to allow all RSA operations to function using a single BN_CTX.
2998 *) Preliminary support for certificate policy evaluation and checking. This
2999 is initially intended to pass the tests outlined in "Conformance Testing
3000 of Relying Party Client Certificate Path Processing Logic" v1.07.
3003 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
3004 remained unused and not that useful. A variety of other little bignum
3005 tweaks and fixes have also been made continuing on from the audit (see
3009 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
3010 associated ASN1, EVP and SSL functions and old ASN1 macros.
3013 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
3014 and this should never fail. So the return value from the use of
3015 BN_set_word() (which can fail due to needless expansion) is now deprecated;
3016 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
3019 *) BN_CTX_get() should return zero-valued bignums, providing the same
3020 initialised value as BN_new().
3021 [Geoff Thorpe, suggested by Ulf Möller]
3023 *) Support for inhibitAnyPolicy certificate extension.
3026 *) An audit of the BIGNUM code is underway, for which debugging code is
3027 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
3028 is considered valid when processing BIGNUMs, and causes execution to
3029 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
3030 further steps are taken to deliberately pollute unused data in BIGNUM
3031 structures to try and expose faulty code further on. For now, openssl will
3032 (in its default mode of operation) continue to tolerate the inconsistent
3033 forms that it has tolerated in the past, but authors and packagers should
3034 consider trying openssl and their own applications when compiled with
3035 these debugging symbols defined. It will help highlight potential bugs in
3036 their own code, and will improve the test coverage for OpenSSL itself. At
3037 some point, these tighter rules will become openssl's default to improve
3038 maintainability, though the assert()s and other overheads will remain only
3039 in debugging configurations. See bn.h for more details.
3040 [Geoff Thorpe, Nils Larsch, Ulf Möller]
3042 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
3043 that can only be obtained through BN_CTX_new() (which implicitly
3044 initialises it). The presence of this function only made it possible
3045 to overwrite an existing structure (and cause memory leaks).
3048 *) Because of the callback-based approach for implementing LHASH as a
3049 template type, lh_insert() adds opaque objects to hash-tables and
3050 lh_doall() or lh_doall_arg() are typically used with a destructor callback
3051 to clean up those corresponding objects before destroying the hash table
3052 (and losing the object pointers). So some over-zealous constifications in
3053 LHASH have been relaxed so that lh_insert() does not take (nor store) the
3054 objects as "const" and the lh_doall[_arg] callback wrappers are not
3055 prototyped to have "const" restrictions on the object pointers they are
3056 given (and so aren't required to cast them away any more).
3059 *) The tmdiff.h API was so ugly and minimal that our own timing utility
3060 (speed) prefers to use its own implementation. The two implementations
3061 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
3062 its object type properly exposed (MS_TM) instead of casting to/from "char
3063 *". This may still change yet if someone realises MS_TM and "ms_time_***"
3064 aren't necessarily the greatest nomenclatures - but this is what was used
3065 internally to the implementation so I've used that for now.
3068 *) Ensure that deprecated functions do not get compiled when
3069 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
3070 the self-tests were still using deprecated key-generation functions so
3071 these have been updated also.
3074 *) Reorganise PKCS#7 code to separate the digest location functionality
3075 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
3076 New function PKCS7_set_digest() to set the digest type for PKCS#7
3077 digestedData type. Add additional code to correctly generate the
3078 digestedData type and add support for this type in PKCS7 initialization
3082 *) New function PKCS7_set0_type_other() this initializes a PKCS7
3083 structure of type "other".
3086 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
3087 sure the loop does correctly stop and breaking ("division by zero")
3088 modulus operations are not performed. The (pre-generated) prime
3089 table crypto/bn/bn_prime.h was already correct, but it could not be
3090 re-generated on some platforms because of the "division by zero"
3091 situation in the script.
3092 [Ralf S. Engelschall]
3094 *) Update support for ECC-based TLS ciphersuites according to
3095 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
3096 SHA-1 now is only used for "small" curves (where the
3097 representation of a field element takes up to 24 bytes); for
3098 larger curves, the field element resulting from ECDH is directly
3099 used as premaster secret.
3100 [Douglas Stebila (Sun Microsystems Laboratories)]
3102 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
3103 curve secp160r1 to the tests.
3104 [Douglas Stebila (Sun Microsystems Laboratories)]
3106 *) Add the possibility to load symbols globally with DSO.
3107 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
3109 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
3110 control of the error stack.
3113 *) Add support for STORE in ENGINE.
3116 *) Add the STORE type. The intention is to provide a common interface
3117 to certificate and key stores, be they simple file-based stores, or
3118 HSM-type store, or LDAP stores, or...
3119 NOTE: The code is currently UNTESTED and isn't really used anywhere.
3122 *) Add a generic structure called OPENSSL_ITEM. This can be used to
3123 pass a list of arguments to any function as well as provide a way
3124 for a function to pass data back to the caller.
3127 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
3128 works like BUF_strdup() but can be used to duplicate a portion of
3129 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
3133 *) Add the function sk_find_ex() which works like sk_find(), but will
3134 return an index to an element even if an exact match couldn't be
3135 found. The index is guaranteed to point at the element where the
3136 searched-for key would be inserted to preserve sorting order.
3139 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
3140 takes an extra flags argument for optional functionality. Currently,
3141 the following flags are defined:
3143 OBJ_BSEARCH_VALUE_ON_NOMATCH
3144 This one gets OBJ_bsearch_ex() to return a pointer to the first
3145 element where the comparing function returns a negative or zero
3148 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
3149 This one gets OBJ_bsearch_ex() to return a pointer to the first
3150 element where the comparing function returns zero. This is useful
3151 if there are more than one element where the comparing function
3155 *) Make it possible to create self-signed certificates with 'openssl ca'
3156 in such a way that the self-signed certificate becomes part of the
3157 CA database and uses the same mechanisms for serial number generation
3158 as all other certificate signing. The new flag '-selfsign' enables
3159 this functionality. Adapt CA.sh and CA.pl.in.
3162 *) Add functionality to check the public key of a certificate request
3163 against a given private. This is useful to check that a certificate
3164 request can be signed by that key (self-signing).
3167 *) Make it possible to have multiple active certificates with the same
3168 subject in the CA index file. This is done only if the keyword
3169 'unique_subject' is set to 'no' in the main CA section (default
3170 if 'CA_default') of the configuration file. The value is saved
3171 with the database itself in a separate index attribute file,
3172 named like the index file with '.attr' appended to the name.
3175 *) Generate muti valued AVAs using '+' notation in config files for
3179 *) Support for nameConstraints certificate extension.
3182 *) Support for policyConstraints certificate extension.
3185 *) Support for policyMappings certificate extension.
3188 *) Make sure the default DSA_METHOD implementation only uses its
3189 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
3190 and change its own handlers to be NULL so as to remove unnecessary
3191 indirection. This lets alternative implementations fallback to the
3192 default implementation more easily.
3195 *) Support for directoryName in GeneralName related extensions
3199 *) Make it possible to link applications using Makefile.shared.
3200 Make that possible even when linking against static libraries!
3203 *) Support for single pass processing for S/MIME signing. This now
3204 means that S/MIME signing can be done from a pipe, in addition
3205 cleartext signing (multipart/signed type) is effectively streaming
3206 and the signed data does not need to be all held in memory.
3208 This is done with a new flag PKCS7_STREAM. When this flag is set
3209 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
3210 is done after the data is output (and digests calculated) in
3211 SMIME_write_PKCS7().
3214 *) Add full support for -rpath/-R, both in shared libraries and
3215 applications, at least on the platforms where it's known how
3219 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
3220 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
3221 will now compute a table of multiples of the generator that
3222 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
3223 faster (notably in the case of a single point multiplication,
3224 scalar * generator).
3225 [Nils Larsch, Bodo Moeller]
3227 *) IPv6 support for certificate extensions. The various extensions
3228 which use the IP:a.b.c.d can now take IPv6 addresses using the
3229 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
3233 *) Added an ENGINE that implements RSA by performing private key
3234 exponentiations with the GMP library. The conversions to and from
3235 GMP's mpz_t format aren't optimised nor are any montgomery forms
3236 cached, and on x86 it appears OpenSSL's own performance has caught up.
3237 However there are likely to be other architectures where GMP could
3238 provide a boost. This ENGINE is not built in by default, but it can be
3239 specified at Configure time and should be accompanied by the necessary
3240 linker additions, eg;
3241 ./config -DOPENSSL_USE_GMP -lgmp
3244 *) "openssl engine" will not display ENGINE/DSO load failure errors when
3245 testing availability of engines with "-t" - the old behaviour is
3246 produced by increasing the feature's verbosity with "-tt".
3249 *) ECDSA routines: under certain error conditions uninitialized BN objects
3250 could be freed. Solution: make sure initialization is performed early
3251 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
3255 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
3256 and DH_METHOD (eg. by ENGINE implementations) to override the normal
3257 software implementations. For DSA and DH, parameter generation can
3258 also be overriden by providing the appropriate method callbacks.
3261 *) Change the "progress" mechanism used in key-generation and
3262 primality testing to functions that take a new BN_GENCB pointer in
3263 place of callback/argument pairs. The new API functions have "_ex"
3264 postfixes and the older functions are reimplemented as wrappers for
3265 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
3266 declarations of the old functions to help (graceful) attempts to
3267 migrate to the new functions. Also, the new key-generation API
3268 functions operate on a caller-supplied key-structure and return
3269 success/failure rather than returning a key or NULL - this is to
3270 help make "keygen" another member function of RSA_METHOD etc.
3272 Example for using the new callback interface:
3274 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
3278 BN_GENCB_set(&my_cb, my_callback, my_arg);
3280 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
3281 /* For the meaning of a, b in calls to my_callback(), see the
3282 * documentation of the function that calls the callback.
3283 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
3284 * my_callback should return 1 if it wants BN_is_prime_ex()
3285 * to continue, or 0 to stop.
3290 *) Change the ZLIB compression method to be stateful, and make it
3291 available to TLS with the number defined in
3292 draft-ietf-tls-compression-04.txt.
3295 *) Add the ASN.1 structures and functions for CertificatePair, which
3296 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
3298 CertificatePair ::= SEQUENCE {
3299 forward [0] Certificate OPTIONAL,
3300 reverse [1] Certificate OPTIONAL,
3301 -- at least one of the pair shall be present -- }
3303 Also implement the PEM functions to read and write certificate
3304 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
3306 This needed to be defined, mostly for the sake of the LDAP
3307 attribute crossCertificatePair, but may prove useful elsewhere as
3311 *) Make it possible to inhibit symlinking of shared libraries in
3312 Makefile.shared, for Cygwin's sake.
3315 *) Extend the BIGNUM API by creating a function
3316 void BN_set_negative(BIGNUM *a, int neg);
3317 and a macro that behave like
3318 int BN_is_negative(const BIGNUM *a);
3320 to avoid the need to access 'a->neg' directly in applications.
3323 *) Implement fast modular reduction for pseudo-Mersenne primes
3324 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
3325 EC_GROUP_new_curve_GFp() will now automatically use this
3327 [Nils Larsch <nla@trustcenter.de>]
3329 *) Add new lock type (CRYPTO_LOCK_BN).
3332 *) Change the ENGINE framework to automatically load engines
3333 dynamically from specific directories unless they could be
3334 found to already be built in or loaded. Move all the
3335 current engines except for the cryptodev one to a new
3337 The engines in engines/ are built as shared libraries if
3338 the "shared" options was given to ./Configure or ./config.
3339 Otherwise, they are inserted in libcrypto.a.
3340 /usr/local/ssl/engines is the default directory for dynamic
3341 engines, but that can be overriden at configure time through
3342 the usual use of --prefix and/or --openssldir, and at run
3343 time with the environment variable OPENSSL_ENGINES.
3344 [Geoff Thorpe and Richard Levitte]
3346 *) Add Makefile.shared, a helper makefile to build shared
3347 libraries. Addapt Makefile.org.
3350 *) Add version info to Win32 DLLs.
3351 [Peter 'Luna' Runestig" <peter@runestig.com>]
3353 *) Add new 'medium level' PKCS#12 API. Certificates and keys
3354 can be added using this API to created arbitrary PKCS#12
3355 files while avoiding the low level API.
3357 New options to PKCS12_create(), key or cert can be NULL and
3358 will then be omitted from the output file. The encryption
3359 algorithm NIDs can be set to -1 for no encryption, the mac
3360 iteration count can be set to 0 to omit the mac.
3362 Enhance pkcs12 utility by making the -nokeys and -nocerts
3363 options work when creating a PKCS#12 file. New option -nomac
3364 to omit the mac, NONE can be set for an encryption algorithm.
3365 New code is modified to use the enhanced PKCS12_create()
3366 instead of the low level API.
3369 *) Extend ASN1 encoder to support indefinite length constructed
3370 encoding. This can output sequences tags and octet strings in
3371 this form. Modify pk7_asn1.c to support indefinite length
3372 encoding. This is experimental and needs additional code to
3373 be useful, such as an ASN1 bio and some enhanced streaming
3376 Extend template encode functionality so that tagging is passed
3377 down to the template encoder.
3380 *) Let 'openssl req' fail if an argument to '-newkey' is not
3381 recognized instead of using RSA as a default.
3384 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
3385 As these are not official, they are not included in "ALL";
3386 the "ECCdraft" ciphersuite group alias can be used to select them.
3387 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
3389 *) Add ECDH engine support.
3390 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
3392 *) Add ECDH in new directory crypto/ecdh/.
3393 [Douglas Stebila (Sun Microsystems Laboratories)]
3395 *) Let BN_rand_range() abort with an error after 100 iterations
3396 without success (which indicates a broken PRNG).
3399 *) Change BN_mod_sqrt() so that it verifies that the input value
3400 is really the square of the return value. (Previously,
3401 BN_mod_sqrt would show GIGO behaviour.)
3404 *) Add named elliptic curves over binary fields from X9.62, SECG,
3405 and WAP/WTLS; add OIDs that were still missing.
3407 [Sheueling Chang Shantz and Douglas Stebila
3408 (Sun Microsystems Laboratories)]
3410 *) Extend the EC library for elliptic curves over binary fields
3411 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
3414 EC_GF2m_simple_method
3418 EC_GROUP_new_curve_GF2m
3419 EC_GROUP_set_curve_GF2m
3420 EC_GROUP_get_curve_GF2m
3421 EC_POINT_set_affine_coordinates_GF2m
3422 EC_POINT_get_affine_coordinates_GF2m
3423 EC_POINT_set_compressed_coordinates_GF2m
3425 Point compression for binary fields is disabled by default for
3426 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
3429 As binary polynomials are represented as BIGNUMs, various members
3430 of the EC_GROUP and EC_POINT data structures can be shared
3431 between the implementations for prime fields and binary fields;
3432 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
3433 are essentially identical to their ..._GFp counterparts.
3434 (For simplicity, the '..._GFp' prefix has been dropped from
3435 various internal method names.)
3437 An internal 'field_div' method (similar to 'field_mul' and
3438 'field_sqr') has been added; this is used only for binary fields.
3440 [Sheueling Chang Shantz and Douglas Stebila
3441 (Sun Microsystems Laboratories)]
3443 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
3444 through methods ('mul', 'precompute_mult').
3446 The generic implementations (now internally called 'ec_wNAF_mul'
3447 and 'ec_wNAF_precomputed_mult') remain the default if these
3448 methods are undefined.
3450 [Sheueling Chang Shantz and Douglas Stebila
3451 (Sun Microsystems Laboratories)]
3453 *) New function EC_GROUP_get_degree, which is defined through
3454 EC_METHOD. For curves over prime fields, this returns the bit
3455 length of the modulus.
3457 [Sheueling Chang Shantz and Douglas Stebila
3458 (Sun Microsystems Laboratories)]
3460 *) New functions EC_GROUP_dup, EC_POINT_dup.
3461 (These simply call ..._new and ..._copy).
3463 [Sheueling Chang Shantz and Douglas Stebila
3464 (Sun Microsystems Laboratories)]
3466 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
3467 Polynomials are represented as BIGNUMs (where the sign bit is not
3468 used) in the following functions [macros]:
3471 BN_GF2m_sub [= BN_GF2m_add]
3472 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
3473 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
3474 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
3476 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
3477 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
3478 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
3479 BN_GF2m_cmp [= BN_ucmp]
3481 (Note that only the 'mod' functions are actually for fields GF(2^m).
3482 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
3484 For some functions, an the irreducible polynomial defining a
3485 field can be given as an 'unsigned int[]' with strictly
3486 decreasing elements giving the indices of those bits that are set;
3487 i.e., p[] represents the polynomial
3488 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
3490 p[0] > p[1] > ... > p[k] = 0.
3491 This applies to the following functions:
3496 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
3497 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
3499 BN_GF2m_mod_sqrt_arr
3500 BN_GF2m_mod_solve_quad_arr
3504 Conversion can be performed by the following functions:
3509 bntest.c has additional tests for binary polynomial arithmetic.
3511 Two implementations for BN_GF2m_mod_div() are available.
3512 The default algorithm simply uses BN_GF2m_mod_inv() and
3513 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
3514 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
3515 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
3517 [Sheueling Chang Shantz and Douglas Stebila
3518 (Sun Microsystems Laboratories)]
3520 *) Add new error code 'ERR_R_DISABLED' that can be used when some
3521 functionality is disabled at compile-time.
3522 [Douglas Stebila <douglas.stebila@sun.com>]
3524 *) Change default behaviour of 'openssl asn1parse' so that more
3525 information is visible when viewing, e.g., a certificate:
3527 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
3528 mode the content of non-printable OCTET STRINGs is output in a
3529 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
3530 avoid the appearance of a printable string.
3531 [Nils Larsch <nla@trustcenter.de>]
3533 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
3535 EC_GROUP_set_asn1_flag()
3536 EC_GROUP_get_asn1_flag()
3537 EC_GROUP_set_point_conversion_form()
3538 EC_GROUP_get_point_conversion_form()
3539 These control ASN1 encoding details:
3540 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
3541 has been set to OPENSSL_EC_NAMED_CURVE.
3542 - Points are encoded in uncompressed form by default; options for
3543 asn1_for are as for point2oct, namely
3544 POINT_CONVERSION_COMPRESSED
3545 POINT_CONVERSION_UNCOMPRESSED
3546 POINT_CONVERSION_HYBRID
3548 Also add 'seed' and 'seed_len' members to EC_GROUP with access
3551 EC_GROUP_get0_seed()
3552 EC_GROUP_get_seed_len()
3553 This is used only for ASN1 purposes (so far).
3554 [Nils Larsch <nla@trustcenter.de>]
3556 *) Add 'field_type' member to EC_METHOD, which holds the NID
3557 of the appropriate field type OID. The new function
3558 EC_METHOD_get_field_type() returns this value.
3559 [Nils Larsch <nla@trustcenter.de>]
3564 EC_POINT_point2hex()
3565 EC_POINT_hex2point()
3566 providing useful interfaces to EC_POINT_point2oct() and
3567 EC_POINT_oct2point().
3568 [Nils Larsch <nla@trustcenter.de>]
3570 *) Change internals of the EC library so that the functions
3571 EC_GROUP_set_generator()
3572 EC_GROUP_get_generator()
3573 EC_GROUP_get_order()
3574 EC_GROUP_get_cofactor()
3575 are implemented directly in crypto/ec/ec_lib.c and not dispatched
3576 to methods, which would lead to unnecessary code duplication when
3577 adding different types of curves.
3578 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
3580 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
3581 arithmetic, and such that modified wNAFs are generated
3582 (which avoid length expansion in many cases).
3585 *) Add a function EC_GROUP_check_discriminant() (defined via
3586 EC_METHOD) that verifies that the curve discriminant is non-zero.
3588 Add a function EC_GROUP_check() that makes some sanity tests
3589 on a EC_GROUP, its generator and order. This includes
3590 EC_GROUP_check_discriminant().
3591 [Nils Larsch <nla@trustcenter.de>]
3593 *) Add ECDSA in new directory crypto/ecdsa/.
3595 Add applications 'openssl ecparam' and 'openssl ecdsa'
3596 (these are based on 'openssl dsaparam' and 'openssl dsa').
3598 ECDSA support is also included in various other files across the
3599 library. Most notably,
3600 - 'openssl req' now has a '-newkey ecdsa:file' option;
3601 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
3602 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
3603 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
3604 them suitable for ECDSA where domain parameters must be
3605 extracted before the specific public key;
3606 - ECDSA engine support has been added.
3607 [Nils Larsch <nla@trustcenter.de>]
3609 *) Include some named elliptic curves, and add OIDs from X9.62,
3610 SECG, and WAP/WTLS. Each curve can be obtained from the new
3612 EC_GROUP_new_by_curve_name(),
3613 and the list of available named curves can be obtained with
3614 EC_get_builtin_curves().
3615 Also add a 'curve_name' member to EC_GROUP objects, which can be
3617 EC_GROUP_set_curve_name()
3618 EC_GROUP_get_curve_name()
3619 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
3621 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3622 was actually never needed) and in BN_mul(). The removal in BN_mul()
3623 required a small change in bn_mul_part_recursive() and the addition
3624 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3625 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3626 bn_sub_words() and bn_add_words() except they take arrays with
3630 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
3632 *) Cleanse PEM buffers before freeing them since they may contain
3634 [Benjamin Bennett <ben@psc.edu>]
3636 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3637 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3638 authentication-only ciphersuites.
3641 *) Since AES128 and AES256 share a single mask bit in the logic of
3642 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3643 kludge to work properly if AES128 is available and AES256 isn't.
3646 *) Expand security boundary to match 1.1.1 module.
3649 *) Remove redundant features: hash file source, editing of test vectors
3650 modify fipsld to use external fips_premain.c signature.
3653 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3654 run algorithm test programs.
3657 *) Make algorithm test programs more tolerant of whitespace.
3660 *) Have SSL/TLS server implementation tolerate "mismatched" record
3661 protocol version while receiving ClientHello even if the
3662 ClientHello is fragmented. (The server can't insist on the
3663 particular protocol version it has chosen before the ServerHello
3664 message has informed the client about his choice.)
3667 *) Load error codes if they are not already present instead of using a
3668 static variable. This allows them to be cleanly unloaded and reloaded.
3671 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3673 *) Introduce limits to prevent malicious keys being able to
3674 cause a denial of service. (CVE-2006-2940)
3675 [Steve Henson, Bodo Moeller]
3677 *) Fix ASN.1 parsing of certain invalid structures that can result
3678 in a denial of service. (CVE-2006-2937) [Steve Henson]
3680 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3681 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3683 *) Fix SSL client code which could crash if connecting to a
3684 malicious SSLv2 server. (CVE-2006-4343)
3685 [Tavis Ormandy and Will Drewry, Google Security Team]
3687 *) Change ciphersuite string processing so that an explicit
3688 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3689 will no longer include "AES128-SHA"), and any other similar
3690 ciphersuite (same bitmap) from *other* protocol versions (so that
3691 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3692 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3693 changes from 0.9.8b and 0.9.8d.
3696 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3698 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3699 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3701 *) Change the Unix randomness entropy gathering to use poll() when
3702 possible instead of select(), since the latter has some
3703 undesirable limitations.
3704 [Darryl Miles via Richard Levitte and Bodo Moeller]
3706 *) Disable rogue ciphersuites:
3708 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3709 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3710 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3712 The latter two were purportedly from
3713 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3716 Also deactive the remaining ciphersuites from
3717 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3718 unofficial, and the ID has long expired.
3721 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3722 dual-core machines) and other potential thread-safety issues.
3725 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3727 *) Adapt fipsld and the build system to link against the validated FIPS
3728 module in FIPS mode.
3731 *) Fixes for VC++ 2005 build under Windows.
3734 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3735 from a Windows bash shell such as MSYS. It is autodetected from the
3736 "config" script when run from a VC++ environment. Modify standard VC++
3737 build to use fipscanister.o from the GNU make build.
3740 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3742 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3743 The value now differs depending on if you build for FIPS or not.
3744 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3745 safely run with a non-FIPSed libcrypto, as it may crash because of
3746 the difference induced by this change.
3749 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3751 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3752 (part of SSL_OP_ALL). This option used to disable the
3753 countermeasure against man-in-the-middle protocol-version
3754 rollback in the SSL 2.0 server implementation, which is a bad
3755 idea. (CVE-2005-2969)
3757 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3758 for Information Security, National Institute of Advanced Industrial
3759 Science and Technology [AIST], Japan)]
3761 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3762 mainly for FIPS compliance and not fully integrated at this stage.
3765 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3766 the exponentiation using a fixed-length exponent. (Otherwise,
3767 the information leaked through timing could expose the secret key
3768 after many signatures; cf. Bleichenbacher's attack on DSA with
3772 *) Make a new fixed-window mod_exp implementation the default for
3773 RSA, DSA, and DH private-key operations so that the sequence of
3774 squares and multiplies and the memory access pattern are
3775 independent of the particular secret key. This will mitigate
3776 cache-timing and potential related attacks.
3778 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3779 and this is automatically used by BN_mod_exp_mont() if the new flag
3780 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3781 will use this BN flag for private exponents unless the flag
3782 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3783 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3785 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3787 *) Change the client implementation for SSLv23_method() and
3788 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3789 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3790 (Previously, the SSL 2.0 backwards compatible Client Hello
3791 message format would be used even with SSL_OP_NO_SSLv2.)
3794 *) Add support for smime-type MIME parameter in S/MIME messages which some
3798 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3799 a threadsafe manner. Modify rsa code to use new function and add calls
3800 to dsa and dh code (which had race conditions before).
3803 *) Include the fixed error library code in the C error file definitions
3804 instead of fixing them up at runtime. This keeps the error code
3805 structures constant.
3808 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3810 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3813 *) Fixes for newer kerberos headers. NB: the casts are needed because
3814 the 'length' field is signed on one version and unsigned on another
3815 with no (?) obvious way to tell the difference, without these VC++
3816 complains. Also the "definition" of FAR (blank) is no longer included
3817 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3818 some needed definitions.
3821 *) Undo Cygwin change.
3824 *) Added support for proxy certificates according to RFC 3820.
3825 Because they may be a security thread to unaware applications,
3826 they must be explicitely allowed in run-time. See
3827 docs/HOWTO/proxy_certificates.txt for further information.
3830 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3832 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3833 server and client random values. Previously
3834 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3835 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3837 This change has negligible security impact because:
3839 1. Server and client random values still have 24 bytes of pseudo random
3842 2. Server and client random values are sent in the clear in the initial
3845 3. The master secret is derived using the premaster secret (48 bytes in
3846 size for static RSA ciphersuites) as well as client server and random
3849 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3852 [Stephen Henson, reported by UK NISCC]
3854 *) Use Windows randomness collection on Cygwin.
3857 *) Fix hang in EGD/PRNGD query when communication socket is closed
3858 prematurely by EGD/PRNGD.
3859 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3861 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3864 *) Back-port of selected performance improvements from development
3865 branch, as well as improved support for PowerPC platforms.
3868 *) Add lots of checks for memory allocation failure, error codes to indicate
3869 failure and freeing up memory if a failure occurs.
3870 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3872 *) Add new -passin argument to dgst.
3875 *) Perform some character comparisons of different types in X509_NAME_cmp:
3876 this is needed for some certificates that reencode DNs into UTF8Strings
3877 (in violation of RFC3280) and can't or wont issue name rollover
3881 *) Make an explicit check during certificate validation to see that
3882 the CA setting in each certificate on the chain is correct. As a
3883 side effect always do the following basic checks on extensions,
3884 not just when there's an associated purpose to the check:
3886 - if there is an unhandled critical extension (unless the user
3887 has chosen to ignore this fault)
3888 - if the path length has been exceeded (if one is set at all)
3889 - that certain extensions fit the associated purpose (if one has
3893 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3895 *) Avoid a race condition when CRLs are checked in a multi threaded
3896 environment. This would happen due to the reordering of the revoked
3897 entries during signature checking and serial number lookup. Now the
3898 encoding is cached and the serial number sort performed under a lock.
3899 Add new STACK function sk_is_sorted().
3902 *) Add Delta CRL to the extension code.
3905 *) Various fixes to s3_pkt.c so alerts are sent properly.
3906 [David Holmes <d.holmes@f5.com>]
3908 *) Reduce the chances of duplicate issuer name and serial numbers (in
3909 violation of RFC3280) using the OpenSSL certificate creation utilities.
3910 This is done by creating a random 64 bit value for the initial serial
3911 number when a serial number file is created or when a self signed
3912 certificate is created using 'openssl req -x509'. The initial serial
3913 number file is created using 'openssl x509 -next_serial' in CA.pl
3914 rather than being initialized to 1.
3917 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3919 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3920 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3921 [Joe Orton, Steve Henson]
3923 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3925 [Joe Orton, Steve Henson]
3927 *) Make it possible to have multiple active certificates with the same
3928 subject in the CA index file. This is done only if the keyword
3929 'unique_subject' is set to 'no' in the main CA section (default
3930 if 'CA_default') of the configuration file. The value is saved
3931 with the database itself in a separate index attribute file,
3932 named like the index file with '.attr' appended to the name.
3935 *) X509 verify fixes. Disable broken certificate workarounds when
3936 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3937 keyUsage extension present. Don't accept CRLs with unhandled critical
3938 extensions: since verify currently doesn't process CRL extensions this
3939 rejects a CRL with *any* critical extensions. Add new verify error codes
3943 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3944 A clarification of RFC2560 will require the use of OCTET STRINGs and
3945 some implementations cannot handle the current raw format. Since OpenSSL
3946 copies and compares OCSP nonces as opaque blobs without any attempt at
3947 parsing them this should not create any compatibility issues.
3950 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3951 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3952 this HMAC (and other) operations are several times slower than OpenSSL
3956 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3957 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3959 *) Use the correct content when signing type "other".
3962 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3964 *) Fix various bugs revealed by running the NISCC test suite:
3966 Stop out of bounds reads in the ASN1 code when presented with
3967 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3969 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3971 If verify callback ignores invalid public key errors don't try to check
3972 certificate signature with the NULL public key.
3976 *) New -ignore_err option in ocsp application to stop the server
3977 exiting on the first error in a request.
3980 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3981 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3985 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3986 extra data after the compression methods not only for TLS 1.0
3987 but also for SSL 3.0 (as required by the specification).
3988 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3990 *) Change X509_certificate_type() to mark the key as exported/exportable
3991 when it's 512 *bits* long, not 512 bytes.
3994 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3995 blocks during encryption.
3998 *) Various fixes to base64 BIO and non blocking I/O. On write
3999 flushes were not handled properly if the BIO retried. On read
4000 data was not being buffered properly and had various logic bugs.
4001 This also affects blocking I/O when the data being decoded is a
4005 *) Various S/MIME bugfixes and compatibility changes:
4006 output correct application/pkcs7 MIME type if
4007 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
4008 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
4009 of files as .eml work). Correctly handle very long lines in MIME
4013 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
4015 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4016 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4017 a protocol version number mismatch like a decryption error
4018 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4021 *) Turn on RSA blinding by default in the default implementation
4022 to avoid a timing attack. Applications that don't want it can call
4023 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4024 They would be ill-advised to do so in most cases.
4025 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4027 *) Change RSA blinding code so that it works when the PRNG is not
4028 seeded (in this case, the secret RSA exponent is abused as
4029 an unpredictable seed -- if it is not unpredictable, there
4030 is no point in blinding anyway). Make RSA blinding thread-safe
4031 by remembering the creator's thread ID in rsa->blinding and
4032 having all other threads use local one-time blinding factors
4033 (this requires more computation than sharing rsa->blinding, but
4034 avoids excessive locking; and if an RSA object is not shared
4035 between threads, blinding will still be very fast).
4038 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
4039 ENGINE as defaults for all supported algorithms irrespective of
4040 the 'flags' parameter. 'flags' is now honoured, so applications
4041 should make sure they are passing it correctly.
4044 *) Target "mingw" now allows native Windows code to be generated in
4045 the Cygwin environment as well as with the MinGW compiler.
4048 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
4050 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4051 via timing by performing a MAC computation even if incorrrect
4052 block cipher padding has been found. This is a countermeasure
4053 against active attacks where the attacker has to distinguish
4054 between bad padding and a MAC verification error. (CVE-2003-0078)
4056 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4057 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4058 Martin Vuagnoux (EPFL, Ilion)]
4060 *) Make the no-err option work as intended. The intention with no-err
4061 is not to have the whole error stack handling routines removed from
4062 libcrypto, it's only intended to remove all the function name and
4063 reason texts, thereby removing some of the footprint that may not
4064 be interesting if those errors aren't displayed anyway.
4066 NOTE: it's still possible for any application or module to have it's
4067 own set of error texts inserted. The routines are there, just not
4068 used by default when no-err is given.
4071 *) Add support for FreeBSD on IA64.
4072 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
4074 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
4075 Kerberos function mit_des_cbc_cksum(). Before this change,
4076 the value returned by DES_cbc_cksum() was like the one from
4077 mit_des_cbc_cksum(), except the bytes were swapped.
4078 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
4080 *) Allow an application to disable the automatic SSL chain building.
4081 Before this a rather primitive chain build was always performed in
4082 ssl3_output_cert_chain(): an application had no way to send the
4083 correct chain if the automatic operation produced an incorrect result.
4085 Now the chain builder is disabled if either:
4087 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
4089 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
4091 The reasoning behind this is that an application would not want the
4092 auto chain building to take place if extra chain certificates are
4093 present and it might also want a means of sending no additional
4094 certificates (for example the chain has two certificates and the
4098 *) Add the possibility to build without the ENGINE framework.
4099 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
4101 *) Under Win32 gmtime() can return NULL: check return value in
4102 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
4105 *) DSA routines: under certain error conditions uninitialized BN objects
4106 could be freed. Solution: make sure initialization is performed early
4107 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
4108 Nils Larsch <nla@trustcenter.de> via PR#459)
4111 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
4112 checked on reconnect on the client side, therefore session resumption
4113 could still fail with a "ssl session id is different" error. This
4114 behaviour is masked when SSL_OP_ALL is used due to
4115 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
4116 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
4117 followup to PR #377.
4120 *) IA-32 assembler support enhancements: unified ELF targets, support
4121 for SCO/Caldera platforms, fix for Cygwin shared build.
4124 *) Add support for FreeBSD on sparc64. As a consequence, support for
4125 FreeBSD on non-x86 processors is separate from x86 processors on
4126 the config script, much like the NetBSD support.
4127 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
4129 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
4131 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
4134 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
4135 code (06) was taken as the first octet of the session ID and the last
4136 octet was ignored consequently. As a result SSLv2 client side session
4137 caching could not have worked due to the session ID mismatch between
4139 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
4143 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
4144 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
4148 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
4149 seems that in spite of existing for more than a year, many application
4150 author have done nothing to provide the necessary callbacks, which
4151 means that this particular engine will not work properly anywhere.
4152 This is a very unfortunate situation which forces us, in the name
4153 of usability, to give the hw_ncipher.c a static lock, which is part
4155 NOTE: This is for the 0.9.7 series ONLY. This hack will never
4156 appear in 0.9.8 or later. We EXPECT application authors to have
4157 dealt properly with this when 0.9.8 is released (unless we actually
4158 make such changes in the libcrypto locking code that changes will
4159 have to be made anyway).
4162 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
4163 octets have been read, EOF or an error occurs. Without this change
4164 some truncated ASN1 structures will not produce an error.
4167 *) Disable Heimdal support, since it hasn't been fully implemented.
4168 Still give the possibility to force the use of Heimdal, but with
4169 warnings and a request that patches get sent to openssl-dev.
4172 *) Add the VC-CE target, introduce the WINCE sysname, and add
4173 INSTALL.WCE and appropriate conditionals to make it build.
4174 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
4176 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
4177 cygssl-x.y.z.dll, where x, y and z are the major, minor and
4178 edit numbers of the version.
4179 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4181 *) Introduce safe string copy and catenation functions
4182 (BUF_strlcpy() and BUF_strlcat()).
4183 [Ben Laurie (CHATS) and Richard Levitte]
4185 *) Avoid using fixed-size buffers for one-line DNs.
4186 [Ben Laurie (CHATS)]
4188 *) Add BUF_MEM_grow_clean() to avoid information leakage when
4189 resizing buffers containing secrets, and use where appropriate.
4190 [Ben Laurie (CHATS)]
4192 *) Avoid using fixed size buffers for configuration file location.
4193 [Ben Laurie (CHATS)]
4195 *) Avoid filename truncation for various CA files.
4196 [Ben Laurie (CHATS)]
4198 *) Use sizeof in preference to magic numbers.
4199 [Ben Laurie (CHATS)]
4201 *) Avoid filename truncation in cert requests.
4202 [Ben Laurie (CHATS)]
4204 *) Add assertions to check for (supposedly impossible) buffer
4206 [Ben Laurie (CHATS)]
4208 *) Don't cache truncated DNS entries in the local cache (this could
4209 potentially lead to a spoofing attack).
4210 [Ben Laurie (CHATS)]
4212 *) Fix various buffers to be large enough for hex/decimal
4213 representations in a platform independent manner.
4214 [Ben Laurie (CHATS)]
4216 *) Add CRYPTO_realloc_clean() to avoid information leakage when
4217 resizing buffers containing secrets, and use where appropriate.
4218 [Ben Laurie (CHATS)]
4220 *) Add BIO_indent() to avoid much slightly worrying code to do
4222 [Ben Laurie (CHATS)]
4224 *) Convert sprintf()/BIO_puts() to BIO_printf().
4225 [Ben Laurie (CHATS)]
4227 *) buffer_gets() could terminate with the buffer only half
4229 [Ben Laurie (CHATS)]
4231 *) Add assertions to prevent user-supplied crypto functions from
4232 overflowing internal buffers by having large block sizes, etc.
4233 [Ben Laurie (CHATS)]
4235 *) New OPENSSL_assert() macro (similar to assert(), but enabled
4237 [Ben Laurie (CHATS)]
4239 *) Eliminate unused copy of key in RC4.
4240 [Ben Laurie (CHATS)]
4242 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
4243 [Ben Laurie (CHATS)]
4245 *) Fix off-by-one error in EGD path.
4246 [Ben Laurie (CHATS)]
4248 *) If RANDFILE path is too long, ignore instead of truncating.
4249 [Ben Laurie (CHATS)]
4251 *) Eliminate unused and incorrectly sized X.509 structure
4253 [Ben Laurie (CHATS)]
4255 *) Eliminate unused and dangerous function knumber().
4256 [Ben Laurie (CHATS)]
4258 *) Eliminate unused and dangerous structure, KSSL_ERR.
4259 [Ben Laurie (CHATS)]
4261 *) Protect against overlong session ID context length in an encoded
4262 session object. Since these are local, this does not appear to be
4264 [Ben Laurie (CHATS)]
4266 *) Change from security patch (see 0.9.6e below) that did not affect
4267 the 0.9.6 release series:
4269 Remote buffer overflow in SSL3 protocol - an attacker could
4270 supply an oversized master key in Kerberos-enabled versions.
4272 [Ben Laurie (CHATS)]
4274 *) Change the SSL kerb5 codes to match RFC 2712.
4277 *) Make -nameopt work fully for req and add -reqopt switch.
4278 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
4280 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
4281 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
4283 *) Make sure tests can be performed even if the corresponding algorithms
4284 have been removed entirely. This was also the last step to make
4285 OpenSSL compilable with DJGPP under all reasonable conditions.
4286 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
4288 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
4289 to allow version independent disabling of normally unselected ciphers,
4290 which may be activated as a side-effect of selecting a single cipher.
4292 (E.g., cipher list string "RSA" enables ciphersuites that are left
4293 out of "ALL" because they do not provide symmetric encryption.
4294 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
4295 [Lutz Jaenicke, Bodo Moeller]
4297 *) Add appropriate support for separate platform-dependent build
4298 directories. The recommended way to make a platform-dependent
4299 build directory is the following (tested on Linux), maybe with
4302 # Place yourself outside of the OpenSSL source tree. In
4303 # this example, the environment variable OPENSSL_SOURCE
4304 # is assumed to contain the absolute OpenSSL source directory.
4305 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
4306 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
4307 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
4308 mkdir -p `dirname $F`
4309 ln -s $OPENSSL_SOURCE/$F $F
4312 To be absolutely sure not to disturb the source tree, a "make clean"
4313 is a good thing. If it isn't successfull, don't worry about it,
4314 it probably means the source directory is very clean.
4317 *) Make sure any ENGINE control commands make local copies of string
4318 pointers passed to them whenever necessary. Otherwise it is possible
4319 the caller may have overwritten (or deallocated) the original string
4320 data when a later ENGINE operation tries to use the stored values.
4321 [Götz Babin-Ebell <babinebell@trustcenter.de>]
4323 *) Improve diagnostics in file reading and command-line digests.
4324 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
4326 *) Add AES modes CFB and OFB to the object database. Correct an
4327 error in AES-CFB decryption.
4330 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
4331 allows existing EVP_CIPHER_CTX structures to be reused after
4332 calling EVP_*Final(). This behaviour is used by encryption
4333 BIOs and some applications. This has the side effect that
4334 applications must explicitly clean up cipher contexts with
4335 EVP_CIPHER_CTX_cleanup() or they will leak memory.
4338 *) Check the values of dna and dnb in bn_mul_recursive before calling
4339 bn_mul_comba (a non zero value means the a or b arrays do not contain
4340 n2 elements) and fallback to bn_mul_normal if either is not zero.
4343 *) Fix escaping of non-ASCII characters when using the -subj option
4344 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
4347 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
4348 form for "surname", serialNumber has no short form.
4349 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
4350 therefore remove "mail" short name for "internet 7".
4351 The OID for unique identifiers in X509 certificates is
4352 x500UniqueIdentifier, not uniqueIdentifier.
4353 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
4356 *) Add an "init" command to the ENGINE config module and auto initialize
4357 ENGINEs. Without any "init" command the ENGINE will be initialized
4358 after all ctrl commands have been executed on it. If init=1 the
4359 ENGINE is initailized at that point (ctrls before that point are run
4360 on the uninitialized ENGINE and after on the initialized one). If
4361 init=0 then the ENGINE will not be iniatialized at all.
4364 *) Fix the 'app_verify_callback' interface so that the user-defined
4365 argument is actually passed to the callback: In the
4366 SSL_CTX_set_cert_verify_callback() prototype, the callback
4367 declaration has been changed from
4370 int (*cb)(X509_STORE_CTX *,void *);
4371 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
4372 i=s->ctx->app_verify_callback(&ctx)
4373 has been changed into
4374 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
4376 To update applications using SSL_CTX_set_cert_verify_callback(),
4377 a dummy argument can be added to their callback functions.
4378 [D. K. Smetters <smetters@parc.xerox.com>]
4380 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
4381 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
4383 *) Add and OPENSSL_LOAD_CONF define which will cause
4384 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
4385 This allows older applications to transparently support certain
4386 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
4387 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
4388 load the config file and OPENSSL_add_all_algorithms_conf() which will
4389 always load it have also been added.
4392 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
4393 Adjust NIDs and EVP layer.
4394 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4396 *) Config modules support in openssl utility.
4398 Most commands now load modules from the config file,
4399 though in a few (such as version) this isn't done
4400 because it couldn't be used for anything.
4402 In the case of ca and req the config file used is
4403 the same as the utility itself: that is the -config
4404 command line option can be used to specify an
4408 *) Move default behaviour from OPENSSL_config(). If appname is NULL
4409 use "openssl_conf" if filename is NULL use default openssl config file.
4412 *) Add an argument to OPENSSL_config() to allow the use of an alternative
4413 config section name. Add a new flag to tolerate a missing config file
4414 and move code to CONF_modules_load_file().
4417 *) Support for crypto accelerator cards from Accelerated Encryption
4418 Processing, www.aep.ie. (Use engine 'aep')
4419 The support was copied from 0.9.6c [engine] and adapted/corrected
4420 to work with the new engine framework.
4421 [AEP Inc. and Richard Levitte]
4423 *) Support for SureWare crypto accelerator cards from Baltimore
4424 Technologies. (Use engine 'sureware')
4425 The support was copied from 0.9.6c [engine] and adapted
4426 to work with the new engine framework.
4429 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
4430 make the newer ENGINE framework commands for the CHIL engine work.
4431 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
4433 *) Make it possible to produce shared libraries on ReliantUNIX.
4434 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
4436 *) Add the configuration target debug-linux-ppro.
4437 Make 'openssl rsa' use the general key loading routines
4438 implemented in apps.c, and make those routines able to
4439 handle the key format FORMAT_NETSCAPE and the variant
4441 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4443 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4444 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4446 *) Add -keyform to rsautl, and document -engine.
4447 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
4449 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
4450 BIO_R_NO_SUCH_FILE error code rather than the generic
4451 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
4454 *) Add new functions
4456 ERR_peek_last_error_line
4457 ERR_peek_last_error_line_data.
4458 These are similar to
4461 ERR_peek_error_line_data,
4462 but report on the latest error recorded rather than the first one
4463 still in the error queue.
4464 [Ben Laurie, Bodo Moeller]
4466 *) default_algorithms option in ENGINE config module. This allows things
4468 default_algorithms = ALL
4469 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
4472 *) Prelminary ENGINE config module.
4475 *) New experimental application configuration code.
4478 *) Change the AES code to follow the same name structure as all other
4479 symmetric ciphers, and behave the same way. Move everything to
4480 the directory crypto/aes, thereby obsoleting crypto/rijndael.
4481 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4483 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
4484 [Ben Laurie and Theo de Raadt]
4486 *) Add option to output public keys in req command.
4487 [Massimiliano Pala madwolf@openca.org]
4489 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
4490 (up to about 10% better than before for P-192 and P-224).
4493 *) New functions/macros
4495 SSL_CTX_set_msg_callback(ctx, cb)
4496 SSL_CTX_set_msg_callback_arg(ctx, arg)
4497 SSL_set_msg_callback(ssl, cb)
4498 SSL_set_msg_callback_arg(ssl, arg)
4500 to request calling a callback function
4502 void cb(int write_p, int version, int content_type,
4503 const void *buf, size_t len, SSL *ssl, void *arg)
4505 whenever a protocol message has been completely received
4506 (write_p == 0) or sent (write_p == 1). Here 'version' is the
4507 protocol version according to which the SSL library interprets
4508 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
4509 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
4510 the content type as defined in the SSL 3.0/TLS 1.0 protocol
4511 specification (change_cipher_spec(20), alert(21), handshake(22)).
4512 'buf' and 'len' point to the actual message, 'ssl' to the
4513 SSL object, and 'arg' is the application-defined value set by
4514 SSL[_CTX]_set_msg_callback_arg().
4516 'openssl s_client' and 'openssl s_server' have new '-msg' options
4517 to enable a callback that displays all protocol messages.
4520 *) Change the shared library support so shared libraries are built as
4521 soon as the corresponding static library is finished, and thereby get
4522 openssl and the test programs linked against the shared library.
4523 This still only happens when the keyword "shard" has been given to
4524 the configuration scripts.
4526 NOTE: shared library support is still an experimental thing, and
4527 backward binary compatibility is still not guaranteed.
4528 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
4530 *) Add support for Subject Information Access extension.
4531 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4533 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
4534 additional bytes when new memory had to be allocated, not just
4535 when reusing an existing buffer.
4538 *) New command line and configuration option 'utf8' for the req command.
4539 This allows field values to be specified as UTF8 strings.
4542 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
4543 runs for the former and machine-readable output for the latter.
4546 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
4547 of the e-mail address in the DN (i.e., it will go into a certificate
4548 extension only). The new configuration file option 'email_in_dn = no'
4549 has the same effect.
4550 [Massimiliano Pala madwolf@openca.org]
4552 *) Change all functions with names starting with des_ to be starting
4553 with DES_ instead. Add wrappers that are compatible with libdes,
4554 but are named _ossl_old_des_*. Finally, add macros that map the
4555 des_* symbols to the corresponding _ossl_old_des_* if libdes
4556 compatibility is desired. If OpenSSL 0.9.6c compatibility is
4557 desired, the des_* symbols will be mapped to DES_*, with one
4560 Since we provide two compatibility mappings, the user needs to
4561 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
4562 compatibility is desired. The default (i.e., when that macro
4563 isn't defined) is OpenSSL 0.9.6c compatibility.
4565 There are also macros that enable and disable the support of old
4566 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
4567 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
4568 are defined, the default will apply: to support the old des routines.
4570 In either case, one must include openssl/des.h to get the correct
4571 definitions. Do not try to just include openssl/des_old.h, that
4574 NOTE: This is a major break of an old API into a new one. Software
4575 authors are encouraged to switch to the DES_ style functions. Some
4576 time in the future, des_old.h and the libdes compatibility functions
4577 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
4578 default), and then completely removed.
4581 *) Test for certificates which contain unsupported critical extensions.
4582 If such a certificate is found during a verify operation it is
4583 rejected by default: this behaviour can be overridden by either
4584 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
4585 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
4586 X509_supported_extension() has also been added which returns 1 if a
4587 particular extension is supported.
4590 *) Modify the behaviour of EVP cipher functions in similar way to digests
4591 to retain compatibility with existing code.
4594 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
4595 compatibility with existing code. In particular the 'ctx' parameter does
4596 not have to be to be initialized before the call to EVP_DigestInit() and
4597 it is tidied up after a call to EVP_DigestFinal(). New function
4598 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
4599 EVP_MD_CTX_copy() changed to not require the destination to be
4600 initialized valid and new function EVP_MD_CTX_copy_ex() added which
4601 requires the destination to be valid.
4603 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
4604 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
4607 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
4608 so that complete 'Handshake' protocol structures are kept in memory
4609 instead of overwriting 'msg_type' and 'length' with 'body' data.
4612 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
4613 [Massimo Santin via Richard Levitte]
4615 *) Major restructuring to the underlying ENGINE code. This includes
4616 reduction of linker bloat, separation of pure "ENGINE" manipulation
4617 (initialisation, etc) from functionality dealing with implementations
4618 of specific crypto iterfaces. This change also introduces integrated
4619 support for symmetric ciphers and digest implementations - so ENGINEs
4620 can now accelerate these by providing EVP_CIPHER and EVP_MD
4621 implementations of their own. This is detailed in crypto/engine/README
4622 as it couldn't be adequately described here. However, there are a few
4623 API changes worth noting - some RSA, DSA, DH, and RAND functions that
4624 were changed in the original introduction of ENGINE code have now
4625 reverted back - the hooking from this code to ENGINE is now a good
4626 deal more passive and at run-time, operations deal directly with
4627 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
4628 dereferencing through an ENGINE pointer any more. Also, the ENGINE
4629 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
4630 they were not being used by the framework as there is no concept of a
4631 BIGNUM_METHOD and they could not be generalised to the new
4632 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
4633 ENGINE_cpy() has been removed as it cannot be consistently defined in
4637 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
4640 *) Change mkdef.pl to sort symbols that get the same entry number,
4641 and make sure the automatically generated functions ERR_load_*
4642 become part of libeay.num as well.
4645 *) New function SSL_renegotiate_pending(). This returns true once
4646 renegotiation has been requested (either SSL_renegotiate() call
4647 or HelloRequest/ClientHello receveived from the peer) and becomes
4648 false once a handshake has been completed.
4649 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
4650 sends a HelloRequest, but does not ensure that a handshake takes
4651 place. SSL_renegotiate_pending() is useful for checking if the
4652 client has followed the request.)
4655 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
4656 By default, clients may request session resumption even during
4657 renegotiation (if session ID contexts permit); with this option,
4658 session resumption is possible only in the first handshake.
4660 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
4661 more bits available for options that should not be part of
4662 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
4665 *) Add some demos for certificate and certificate request creation.
4668 *) Make maximum certificate chain size accepted from the peer application
4669 settable (SSL*_get/set_max_cert_list()), as proposed by
4670 "Douglas E. Engert" <deengert@anl.gov>.
4673 *) Add support for shared libraries for Unixware-7
4674 (Boyd Lynn Gerber <gerberb@zenez.com>).
4677 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
4678 be done prior to destruction. Use this to unload error strings from
4679 ENGINEs that load their own error strings. NB: This adds two new API
4680 functions to "get" and "set" this destroy handler in an ENGINE.
4683 *) Alter all existing ENGINE implementations (except "openssl" and
4684 "openbsd") to dynamically instantiate their own error strings. This
4685 makes them more flexible to be built both as statically-linked ENGINEs
4686 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
4687 Also, add stub code to each that makes building them as self-contained
4688 shared-libraries easier (see README.ENGINE).
4691 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
4692 implementations into applications that are completely implemented in
4693 self-contained shared-libraries. The "dynamic" ENGINE exposes control
4694 commands that can be used to configure what shared-library to load and
4695 to control aspects of the way it is handled. Also, made an update to
4696 the README.ENGINE file that brings its information up-to-date and
4697 provides some information and instructions on the "dynamic" ENGINE
4698 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4701 *) Make it possible to unload ranges of ERR strings with a new
4702 "ERR_unload_strings" function.
4705 *) Add a copy() function to EVP_MD.
4708 *) Make EVP_MD routines take a context pointer instead of just the
4709 md_data void pointer.
4712 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4713 that the digest can only process a single chunk of data
4714 (typically because it is provided by a piece of
4715 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4716 is only going to provide a single chunk of data, and hence the
4717 framework needn't accumulate the data for oneshot drivers.
4720 *) As with "ERR", make it possible to replace the underlying "ex_data"
4721 functions. This change also alters the storage and management of global
4722 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4723 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4724 index counters. The API functions that use this state have been changed
4725 to take a "class_index" rather than pointers to the class's local STACK
4726 and counter, and there is now an API function to dynamically create new
4727 classes. This centralisation allows us to (a) plug a lot of the
4728 thread-safety problems that existed, and (b) makes it possible to clean
4729 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4730 such data would previously have always leaked in application code and
4731 workarounds were in place to make the memory debugging turn a blind eye
4732 to it. Application code that doesn't use this new function will still
4733 leak as before, but their memory debugging output will announce it now
4734 rather than letting it slide.
4736 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4737 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4738 has a return value to indicate success or failure.
4741 *) Make it possible to replace the underlying "ERR" functions such that the
4742 global state (2 LHASH tables and 2 locks) is only used by the "default"
4743 implementation. This change also adds two functions to "get" and "set"
4744 the implementation prior to it being automatically set the first time
4745 any other ERR function takes place. Ie. an application can call "get",
4746 pass the return value to a module it has just loaded, and that module
4747 can call its own "set" function using that value. This means the
4748 module's "ERR" operations will use (and modify) the error state in the
4749 application and not in its own statically linked copy of OpenSSL code.
4752 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4753 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4754 the operation, and provides a more encapsulated way for external code
4755 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4756 to use these functions rather than manually incrementing the counts.
4758 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4761 *) Add EVP test program.
4764 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4767 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4768 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4769 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4770 These allow a CRL to be built without having to access X509_CRL fields
4771 directly. Modify 'ca' application to use new functions.
4774 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4775 bug workarounds. Rollback attack detection is a security feature.
4776 The problem will only arise on OpenSSL servers when TLSv1 is not
4777 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4778 Software authors not wanting to support TLSv1 will have special reasons
4779 for their choice and can explicitly enable this option.
4780 [Bodo Moeller, Lutz Jaenicke]
4782 *) Rationalise EVP so it can be extended: don't include a union of
4783 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4784 (similar to those existing for EVP_CIPHER_CTX).
4789 EVP_MD_CTX_init(&md); /* new function call */
4790 EVP_DigestInit(&md, EVP_sha1());
4791 EVP_DigestUpdate(&md, in, len);
4792 EVP_DigestFinal(&md, out, NULL);
4793 EVP_MD_CTX_cleanup(&md); /* new function call */
4797 *) Make DES key schedule conform to the usual scheme, as well as
4798 correcting its structure. This means that calls to DES functions
4799 now have to pass a pointer to a des_key_schedule instead of a
4800 plain des_key_schedule (which was actually always a pointer
4803 des_key_schedule ks;
4805 des_set_key_checked(..., &ks);
4806 des_ncbc_encrypt(..., &ks, ...);
4808 (Note that a later change renames 'des_...' into 'DES_...'.)
4811 *) Initial reduction of linker bloat: the use of some functions, such as
4812 PEM causes large amounts of unused functions to be linked in due to
4813 poor organisation. For example pem_all.c contains every PEM function
4814 which has a knock on effect of linking in large amounts of (unused)
4815 ASN1 code. Grouping together similar functions and splitting unrelated
4816 functions prevents this.
4819 *) Cleanup of EVP macros.
4822 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4823 correct _ecb suffix.
4826 *) Add initial OCSP responder support to ocsp application. The
4827 revocation information is handled using the text based index
4828 use by the ca application. The responder can either handle
4829 requests generated internally, supplied in files (for example
4830 via a CGI script) or using an internal minimal server.
4833 *) Add configuration choices to get zlib compression for TLS.
4836 *) Changes to Kerberos SSL for RFC 2712 compliance:
4837 1. Implemented real KerberosWrapper, instead of just using
4838 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4839 2. Implemented optional authenticator field of KerberosWrapper.
4841 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4842 and authenticator structs; see crypto/krb5/.
4844 Generalized Kerberos calls to support multiple Kerberos libraries.
4845 [Vern Staats <staatsvr@asc.hpc.mil>,
4846 Jeffrey Altman <jaltman@columbia.edu>
4847 via Richard Levitte]
4849 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4850 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4851 values for each of the key sizes rather than having just
4852 parameters (and 'speed' generating keys each time).
4855 *) Speed up EVP routines.
4858 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4859 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4860 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4861 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4863 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4864 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4865 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4868 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4870 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4873 *) Added the OS2-EMX target.
4874 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4876 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4877 to support NCONF routines in extension code. New function CONF_set_nconf()
4878 to allow functions which take an NCONF to also handle the old LHASH
4879 structure: this means that the old CONF compatible routines can be
4880 retained (in particular wrt extensions) without having to duplicate the
4881 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4884 *) Enhance the general user interface with mechanisms for inner control
4885 and with possibilities to have yes/no kind of prompts.
4888 *) Change all calls to low level digest routines in the library and
4889 applications to use EVP. Add missing calls to HMAC_cleanup() and
4890 don't assume HMAC_CTX can be copied using memcpy().
4891 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4893 *) Add the possibility to control engines through control names but with
4894 arbitrary arguments instead of just a string.
4895 Change the key loaders to take a UI_METHOD instead of a callback
4896 function pointer. NOTE: this breaks binary compatibility with earlier
4897 versions of OpenSSL [engine].
4898 Adapt the nCipher code for these new conditions and add a card insertion
4902 *) Enhance the general user interface with mechanisms to better support
4903 dialog box interfaces, application-defined prompts, the possibility
4904 to use defaults (for example default passwords from somewhere else)
4905 and interrupts/cancellations.
4908 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4909 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4912 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4913 tidy up some unnecessarily weird code in 'sk_new()').
4914 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4916 *) Change the key loading routines for ENGINEs to use the same kind
4917 callback (pem_password_cb) as all other routines that need this
4921 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4922 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4923 than this minimum value is recommended.
4926 *) New random seeder for OpenVMS, using the system process statistics
4927 that are easily reachable.
4930 *) Windows apparently can't transparently handle global
4931 variables defined in DLLs. Initialisations such as:
4933 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4935 wont compile. This is used by the any applications that need to
4936 declare their own ASN1 modules. This was fixed by adding the option
4937 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4938 needed for static libraries under Win32.
4941 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4942 setting of purpose and trust fields. New X509_STORE trust and
4943 purpose functions and tidy up setting in other SSL functions.
4946 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4947 structure. These are inherited by X509_STORE_CTX when it is
4948 initialised. This allows various defaults to be set in the
4949 X509_STORE structure (such as flags for CRL checking and custom
4950 purpose or trust settings) for functions which only use X509_STORE_CTX
4951 internally such as S/MIME.
4953 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4954 trust settings if they are not set in X509_STORE. This allows X509_STORE
4955 purposes and trust (in S/MIME for example) to override any set by default.
4957 Add command line options for CRL checking to smime, s_client and s_server
4961 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4962 are set then the CRL is looked up in the X509_STORE structure and
4963 its validity and signature checked, then if the certificate is found
4964 in the CRL the verify fails with a revoked error.
4966 Various new CRL related callbacks added to X509_STORE_CTX structure.
4968 Command line options added to 'verify' application to support this.
4970 This needs some additional work, such as being able to handle multiple
4971 CRLs with different times, extension based lookup (rather than just
4972 by subject name) and ultimately more complete V2 CRL extension
4976 *) Add a general user interface API (crypto/ui/). This is designed
4977 to replace things like des_read_password and friends (backward
4978 compatibility functions using this new API are provided).
4979 The purpose is to remove prompting functions from the DES code
4980 section as well as provide for prompting through dialog boxes in
4981 a window system and the like.
4984 *) Add "ex_data" support to ENGINE so implementations can add state at a
4985 per-structure level rather than having to store it globally.
4988 *) Make it possible for ENGINE structures to be copied when retrieved by
4989 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4990 This causes the "original" ENGINE structure to act like a template,
4991 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4992 operational state can be localised to each ENGINE structure, despite the
4993 fact they all share the same "methods". New ENGINE structures returned in
4994 this case have no functional references and the return value is the single
4995 structural reference. This matches the single structural reference returned
4996 by ENGINE_by_id() normally, when it is incremented on the pre-existing
5000 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
5001 needs to match any other type at all we need to manually clear the
5005 *) Changes to the "openssl engine" utility to include;
5006 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
5007 about an ENGINE's available control commands.
5008 - executing control commands from command line arguments using the
5009 '-pre' and '-post' switches. '-post' is only used if '-t' is
5010 specified and the ENGINE is successfully initialised. The syntax for
5011 the individual commands are colon-separated, for example;
5012 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
5015 *) New dynamic control command support for ENGINEs. ENGINEs can now
5016 declare their own commands (numbers), names (strings), descriptions,
5017 and input types for run-time discovery by calling applications. A
5018 subset of these commands are implicitly classed as "executable"
5019 depending on their input type, and only these can be invoked through
5020 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
5021 can be based on user input, config files, etc). The distinction is
5022 that "executable" commands cannot return anything other than a boolean
5023 result and can only support numeric or string input, whereas some
5024 discoverable commands may only be for direct use through
5025 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
5026 pointers, or other custom uses. The "executable" commands are to
5027 support parameterisations of ENGINE behaviour that can be
5028 unambiguously defined by ENGINEs and used consistently across any
5029 OpenSSL-based application. Commands have been added to all the
5030 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
5031 control over shared-library paths without source code alterations.
5034 *) Changed all ENGINE implementations to dynamically allocate their
5035 ENGINEs rather than declaring them statically. Apart from this being
5036 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
5037 this also allows the implementations to compile without using the
5038 internal engine_int.h header.
5041 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
5042 'const' value. Any code that should be able to modify a RAND_METHOD
5043 should already have non-const pointers to it (ie. they should only
5044 modify their own ones).
5047 *) Made a variety of little tweaks to the ENGINE code.
5048 - "atalla" and "ubsec" string definitions were moved from header files
5049 to C code. "nuron" string definitions were placed in variables
5050 rather than hard-coded - allowing parameterisation of these values
5051 later on via ctrl() commands.
5052 - Removed unused "#if 0"'d code.
5053 - Fixed engine list iteration code so it uses ENGINE_free() to release
5054 structural references.
5055 - Constified the RAND_METHOD element of ENGINE structures.
5056 - Constified various get/set functions as appropriate and added
5057 missing functions (including a catch-all ENGINE_cpy that duplicates
5058 all ENGINE values onto a new ENGINE except reference counts/state).
5059 - Removed NULL parameter checks in get/set functions. Setting a method
5060 or function to NULL is a way of cancelling out a previously set
5061 value. Passing a NULL ENGINE parameter is just plain stupid anyway
5062 and doesn't justify the extra error symbols and code.
5063 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
5064 flags from engine_int.h to engine.h.
5065 - Changed prototypes for ENGINE handler functions (init(), finish(),
5066 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
5069 *) Implement binary inversion algorithm for BN_mod_inverse in addition
5070 to the algorithm using long division. The binary algorithm can be
5071 used only if the modulus is odd. On 32-bit systems, it is faster
5072 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
5073 roughly 5-15% for 256-bit moduli), so we use it only for moduli
5074 up to 450 bits. In 64-bit environments, the binary algorithm
5075 appears to be advantageous for much longer moduli; here we use it
5076 for moduli up to 2048 bits.
5079 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
5080 could not support the combine flag in choice fields.
5083 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
5084 extensions from a certificate request to the certificate.
5087 *) Allow multiple 'certopt' and 'nameopt' options to be separated
5088 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
5089 file: this allows the display of the certificate about to be
5090 signed to be customised, to allow certain fields to be included
5091 or excluded and extension details. The old system didn't display
5092 multicharacter strings properly, omitted fields not in the policy
5093 and couldn't display additional details such as extensions.
5096 *) Function EC_POINTs_mul for multiple scalar multiplication
5097 of an arbitrary number of elliptic curve points
5098 \sum scalars[i]*points[i],
5099 optionally including the generator defined for the EC_GROUP:
5100 scalar*generator + \sum scalars[i]*points[i].
5102 EC_POINT_mul is a simple wrapper function for the typical case
5103 that the point list has just one item (besides the optional
5107 *) First EC_METHODs for curves over GF(p):
5109 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
5110 operations and provides various method functions that can also
5111 operate with faster implementations of modular arithmetic.
5113 EC_GFp_mont_method() reuses most functions that are part of
5114 EC_GFp_simple_method, but uses Montgomery arithmetic.
5116 [Bodo Moeller; point addition and point doubling
5117 implementation directly derived from source code provided by
5118 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
5120 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
5121 crypto/ec/ec_lib.c):
5123 Curves are EC_GROUP objects (with an optional group generator)
5124 based on EC_METHODs that are built into the library.
5126 Points are EC_POINT objects based on EC_GROUP objects.
5128 Most of the framework would be able to handle curves over arbitrary
5129 finite fields, but as there are no obvious types for fields other
5130 than GF(p), some functions are limited to that for now.
5133 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
5134 that the file contains a complete HTTP response.
5137 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
5138 change the def and num file printf format specifier from "%-40sXXX"
5139 to "%-39s XXX". The latter will always guarantee a space after the
5140 field while the former will cause them to run together if the field
5141 is 40 of more characters long.
5144 *) Constify the cipher and digest 'method' functions and structures
5145 and modify related functions to take constant EVP_MD and EVP_CIPHER
5149 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
5150 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
5153 *) Modify EVP_Digest*() routines so they now return values. Although the
5154 internal software routines can never fail additional hardware versions
5158 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
5160 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
5161 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
5164 ERR_R_NESTED_ASN1_ERROR
5166 ERR_R_MISSING_ASN1_EOS
5167 were 4 .. 9, conflicting with
5168 ERR_LIB_RSA (= ERR_R_RSA_LIB)
5170 ERR_LIB_PEM (= ERR_R_PEM_LIB).
5171 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
5173 Add new error code 'ERR_R_INTERNAL_ERROR'.
5176 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
5180 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
5181 sets the subject name for a new request or supersedes the
5182 subject name in a given request. Formats that can be parsed are
5183 'CN=Some Name, OU=myOU, C=IT'
5185 'CN=Some Name/OU=myOU/C=IT'.
5187 Add options '-batch' and '-verbose' to 'openssl req'.
5188 [Massimiliano Pala <madwolf@hackmasters.net>]
5190 *) Introduce the possibility to access global variables through
5191 functions on platform were that's the best way to handle exporting
5192 global variables in shared libraries. To enable this functionality,
5193 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
5194 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
5195 is normally done by Configure or something similar).
5197 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
5198 in the source file (foo.c) like this:
5200 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
5201 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
5203 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
5204 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
5206 OPENSSL_DECLARE_GLOBAL(int,foo);
5207 #define foo OPENSSL_GLOBAL_REF(foo)
5208 OPENSSL_DECLARE_GLOBAL(double,bar);
5209 #define bar OPENSSL_GLOBAL_REF(bar)
5211 The #defines are very important, and therefore so is including the
5212 header file everywhere where the defined globals are used.
5214 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
5215 of ASN.1 items, but that structure is a bit different.
5217 The largest change is in util/mkdef.pl which has been enhanced with
5218 better and easier to understand logic to choose which symbols should
5219 go into the Windows .def files as well as a number of fixes and code
5220 cleanup (among others, algorithm keywords are now sorted
5221 lexicographically to avoid constant rewrites).
5224 *) In BN_div() keep a copy of the sign of 'num' before writing the
5225 result to 'rm' because if rm==num the value will be overwritten
5226 and produce the wrong result if 'num' is negative: this caused
5227 problems with BN_mod() and BN_nnmod().
5230 *) Function OCSP_request_verify(). This checks the signature on an
5231 OCSP request and verifies the signer certificate. The signer
5232 certificate is just checked for a generic purpose and OCSP request
5236 *) Add OCSP_check_validity() function to check the validity of OCSP
5237 responses. OCSP responses are prepared in real time and may only
5238 be a few seconds old. Simply checking that the current time lies
5239 between thisUpdate and nextUpdate max reject otherwise valid responses
5240 caused by either OCSP responder or client clock inaccuracy. Instead
5241 we allow thisUpdate and nextUpdate to fall within a certain period of
5242 the current time. The age of the response can also optionally be
5243 checked. Two new options -validity_period and -status_age added to
5247 *) If signature or public key algorithm is unrecognized print out its
5248 OID rather that just UNKNOWN.
5251 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
5252 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
5253 ID to be generated from the issuer certificate alone which can then be
5254 passed to OCSP_id_issuer_cmp().
5257 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
5258 ASN1 modules to export functions returning ASN1_ITEM pointers
5259 instead of the ASN1_ITEM structures themselves. This adds several
5260 new macros which allow the underlying ASN1 function/structure to
5261 be accessed transparently. As a result code should not use ASN1_ITEM
5262 references directly (such as &X509_it) but instead use the relevant
5263 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
5264 use of the new ASN1 code on platforms where exporting structures
5265 is problematical (for example in shared libraries) but exporting
5266 functions returning pointers to structures is not.
5269 *) Add support for overriding the generation of SSL/TLS session IDs.
5270 These callbacks can be registered either in an SSL_CTX or per SSL.
5271 The purpose of this is to allow applications to control, if they wish,
5272 the arbitrary values chosen for use as session IDs, particularly as it
5273 can be useful for session caching in multiple-server environments. A
5274 command-line switch for testing this (and any client code that wishes
5275 to use such a feature) has been added to "s_server".
5276 [Geoff Thorpe, Lutz Jaenicke]
5278 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
5279 of the form '#if defined(...) || defined(...) || ...' and
5280 '#if !defined(...) && !defined(...) && ...'. This also avoids
5281 the growing number of special cases it was previously handling.
5284 *) Make all configuration macros available for application by making
5285 sure they are available in opensslconf.h, by giving them names starting
5286 with "OPENSSL_" to avoid conflicts with other packages and by making
5287 sure e_os2.h will cover all platform-specific cases together with
5289 Additionally, it is now possible to define configuration/platform-
5290 specific names (called "system identities"). In the C code, these
5291 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
5292 macro with the name beginning with "OPENSSL_SYS_", which is determined
5293 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
5297 *) New option -set_serial to 'req' and 'x509' this allows the serial
5298 number to use to be specified on the command line. Previously self
5299 signed certificates were hard coded with serial number 0 and the
5300 CA options of 'x509' had to use a serial number in a file which was
5304 *) New options to 'ca' utility to support V2 CRL entry extensions.
5305 Currently CRL reason, invalidity date and hold instruction are
5306 supported. Add new CRL extensions to V3 code and some new objects.
5309 *) New function EVP_CIPHER_CTX_set_padding() this is used to
5310 disable standard block padding (aka PKCS#5 padding) in the EVP
5311 API, which was previously mandatory. This means that the data is
5312 not padded in any way and so the total length much be a multiple
5313 of the block size, otherwise an error occurs.
5316 *) Initial (incomplete) OCSP SSL support.
5319 *) New function OCSP_parse_url(). This splits up a URL into its host,
5320 port and path components: primarily to parse OCSP URLs. New -url
5321 option to ocsp utility.
5324 *) New nonce behavior. The return value of OCSP_check_nonce() now
5325 reflects the various checks performed. Applications can decide
5326 whether to tolerate certain situations such as an absent nonce
5327 in a response when one was present in a request: the ocsp application
5328 just prints out a warning. New function OCSP_add1_basic_nonce()
5329 this is to allow responders to include a nonce in a response even if
5330 the request is nonce-less.
5333 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
5334 skipped when using openssl x509 multiple times on a single input file,
5335 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
5338 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
5339 set string type: to handle setting ASN1_TIME structures. Fix ca
5340 utility to correctly initialize revocation date of CRLs.
5343 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
5344 the clients preferred ciphersuites and rather use its own preferences.
5345 Should help to work around M$ SGC (Server Gated Cryptography) bug in
5346 Internet Explorer by ensuring unchanged hash method during stepup.
5347 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
5350 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
5351 to aes and add a new 'exist' option to print out symbols that don't
5355 *) Additional options to ocsp utility to allow flags to be set and
5356 additional certificates supplied.
5359 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
5360 OCSP client a number of certificate to only verify the response
5364 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
5365 handle the new API. Currently only ECB, CBC modes supported. Add new
5368 Add TLS AES ciphersuites as described in RFC3268, "Advanced
5369 Encryption Standard (AES) Ciphersuites for Transport Layer
5370 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
5371 not enabled by default and were not part of the "ALL" ciphersuite
5372 alias because they were not yet official; they could be
5373 explicitly requested by specifying the "AESdraft" ciphersuite
5374 group alias. In the final release of OpenSSL 0.9.7, the group
5375 alias is called "AES" and is part of "ALL".)
5376 [Ben Laurie, Steve Henson, Bodo Moeller]
5378 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
5379 request to response.
5382 *) Functions for OCSP responders. OCSP_request_onereq_count(),
5383 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
5384 extract information from a certificate request. OCSP_response_create()
5385 creates a response and optionally adds a basic response structure.
5386 OCSP_basic_add1_status() adds a complete single response to a basic
5387 response and returns the OCSP_SINGLERESP structure just added (to allow
5388 extensions to be included for example). OCSP_basic_add1_cert() adds a
5389 certificate to a basic response and OCSP_basic_sign() signs a basic
5390 response with various flags. New helper functions ASN1_TIME_check()
5391 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
5392 (converts ASN1_TIME to GeneralizedTime).
5395 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
5396 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
5397 structure from a certificate. X509_pubkey_digest() digests the public_key
5398 contents: this is used in various key identifiers.
5401 *) Make sk_sort() tolerate a NULL argument.
5402 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
5404 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
5405 passed by the function are trusted implicitly. If any of them signed the
5406 response then it is assumed to be valid and is not verified.
5409 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
5410 to data. This was previously part of the PKCS7 ASN1 code. This
5411 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
5412 [Steve Henson, reported by Kenneth R. Robinette
5413 <support@securenetterm.com>]
5415 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
5416 routines: without these tracing memory leaks is very painful.
5417 Fix leaks in PKCS12 and PKCS7 routines.
5420 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
5421 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
5422 effectively meant GeneralizedTime would never be used. Now it
5423 is initialised to -1 but X509_time_adj() now has to check the value
5424 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
5425 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
5426 [Steve Henson, reported by Kenneth R. Robinette
5427 <support@securenetterm.com>]
5429 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
5430 result in a zero length in the ASN1_INTEGER structure which was
5431 not consistent with the structure when d2i_ASN1_INTEGER() was used
5432 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
5433 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
5434 where it did not print out a minus for negative ASN1_INTEGER.
5437 *) Add summary printout to ocsp utility. The various functions which
5438 convert status values to strings have been renamed to:
5439 OCSP_response_status_str(), OCSP_cert_status_str() and
5440 OCSP_crl_reason_str() and are no longer static. New options
5441 to verify nonce values and to disable verification. OCSP response
5442 printout format cleaned up.
5445 *) Add additional OCSP certificate checks. These are those specified
5446 in RFC2560. This consists of two separate checks: the CA of the
5447 certificate being checked must either be the OCSP signer certificate
5448 or the issuer of the OCSP signer certificate. In the latter case the
5449 OCSP signer certificate must contain the OCSP signing extended key
5450 usage. This check is performed by attempting to match the OCSP
5451 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
5452 in the OCSP_CERTID structures of the response.
5455 *) Initial OCSP certificate verification added to OCSP_basic_verify()
5456 and related routines. This uses the standard OpenSSL certificate
5457 verify routines to perform initial checks (just CA validity) and
5458 to obtain the certificate chain. Then additional checks will be
5459 performed on the chain. Currently the root CA is checked to see
5460 if it is explicitly trusted for OCSP signing. This is used to set
5461 a root CA as a global signing root: that is any certificate that
5462 chains to that CA is an acceptable OCSP signing certificate.
5465 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
5466 extensions from a separate configuration file.
5467 As when reading extensions from the main configuration file,
5468 the '-extensions ...' option may be used for specifying the
5470 [Massimiliano Pala <madwolf@comune.modena.it>]
5472 *) New OCSP utility. Allows OCSP requests to be generated or
5473 read. The request can be sent to a responder and the output
5474 parsed, outputed or printed in text form. Not complete yet:
5475 still needs to check the OCSP response validity.
5478 *) New subcommands for 'openssl ca':
5479 'openssl ca -status <serial>' prints the status of the cert with
5480 the given serial number (according to the index file).
5481 'openssl ca -updatedb' updates the expiry status of certificates
5483 [Massimiliano Pala <madwolf@comune.modena.it>]
5485 *) New '-newreq-nodes' command option to CA.pl. This is like
5486 '-newreq', but calls 'openssl req' with the '-nodes' option
5487 so that the resulting key is not encrypted.
5488 [Damien Miller <djm@mindrot.org>]
5490 *) New configuration for the GNU Hurd.
5491 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
5493 *) Initial code to implement OCSP basic response verify. This
5494 is currently incomplete. Currently just finds the signer's
5495 certificate and verifies the signature on the response.
5498 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
5499 value of OPENSSLDIR. This is available via the new '-d' option
5500 to 'openssl version', and is also included in 'openssl version -a'.
5503 *) Allowing defining memory allocation callbacks that will be given
5504 file name and line number information in additional arguments
5505 (a const char* and an int). The basic functionality remains, as
5506 well as the original possibility to just replace malloc(),
5507 realloc() and free() by functions that do not know about these
5508 additional arguments. To register and find out the current
5509 settings for extended allocation functions, the following
5510 functions are provided:
5512 CRYPTO_set_mem_ex_functions
5513 CRYPTO_set_locked_mem_ex_functions
5514 CRYPTO_get_mem_ex_functions
5515 CRYPTO_get_locked_mem_ex_functions
5517 These work the same way as CRYPTO_set_mem_functions and friends.
5518 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
5519 extended allocation function is enabled.
5520 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
5521 a conventional allocation function is enabled.
5522 [Richard Levitte, Bodo Moeller]
5524 *) Finish off removing the remaining LHASH function pointer casts.
5525 There should no longer be any prototype-casting required when using
5526 the LHASH abstraction, and any casts that remain are "bugs". See
5527 the callback types and macros at the head of lhash.h for details
5528 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
5531 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
5532 If /dev/[u]random devices are not available or do not return enough
5533 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
5535 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
5536 /etc/entropy will be queried once each in this sequence, quering stops
5537 when enough entropy was collected without querying more sockets.
5540 *) Change the Unix RAND_poll() variant to be able to poll several
5541 random devices, as specified by DEVRANDOM, until a sufficient amount
5542 of data has been collected. We spend at most 10 ms on each file
5543 (select timeout) and read in non-blocking mode. DEVRANDOM now
5544 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
5545 (previously it was just the string "/dev/urandom"), so on typical
5546 platforms the 10 ms delay will never occur.
5547 Also separate out the Unix variant to its own file, rand_unix.c.
5548 For VMS, there's a currently-empty rand_vms.c.
5551 *) Move OCSP client related routines to ocsp_cl.c. These
5552 provide utility functions which an application needing
5553 to issue a request to an OCSP responder and analyse the
5554 response will typically need: as opposed to those which an
5555 OCSP responder itself would need which will be added later.
5557 OCSP_request_sign() signs an OCSP request with an API similar
5558 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
5559 response. OCSP_response_get1_basic() extracts basic response
5560 from response. OCSP_resp_find_status(): finds and extracts status
5561 information from an OCSP_CERTID structure (which will be created
5562 when the request structure is built). These are built from lower
5563 level functions which work on OCSP_SINGLERESP structures but
5564 wont normally be used unless the application wishes to examine
5565 extensions in the OCSP response for example.
5567 Replace nonce routines with a pair of functions.
5568 OCSP_request_add1_nonce() adds a nonce value and optionally
5569 generates a random value. OCSP_check_nonce() checks the
5570 validity of the nonce in an OCSP response.
5573 *) Change function OCSP_request_add() to OCSP_request_add0_id().
5574 This doesn't copy the supplied OCSP_CERTID and avoids the
5575 need to free up the newly created id. Change return type
5576 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
5577 This can then be used to add extensions to the request.
5578 Deleted OCSP_request_new(), since most of its functionality
5579 is now in OCSP_REQUEST_new() (and the case insensitive name
5580 clash) apart from the ability to set the request name which
5581 will be added elsewhere.
5584 *) Update OCSP API. Remove obsolete extensions argument from
5585 various functions. Extensions are now handled using the new
5586 OCSP extension code. New simple OCSP HTTP function which
5587 can be used to send requests and parse the response.
5590 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
5591 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
5592 uses the special reorder version of SET OF to sort the attributes
5593 and reorder them to match the encoded order. This resolves a long
5594 standing problem: a verify on a PKCS7 structure just after signing
5595 it used to fail because the attribute order did not match the
5596 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
5597 it uses the received order. This is necessary to tolerate some broken
5598 software that does not order SET OF. This is handled by encoding
5599 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
5600 to produce the required SET OF.
5603 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
5604 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
5605 files to get correct declarations of the ASN.1 item variables.
5608 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
5609 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
5610 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
5611 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
5612 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
5613 ASN1_ITEM and no wrapper functions.
5616 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
5617 replace the old function pointer based I/O routines. Change most of
5618 the *_d2i_bio() and *_d2i_fp() functions to use these.
5621 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
5622 lines, recognice more "algorithms" that can be deselected, and make
5623 it complain about algorithm deselection that isn't recognised.
5626 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
5627 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
5628 to use new functions. Add NO_ASN1_OLD which can be set to remove
5629 some old style ASN1 functions: this can be used to determine if old
5630 code will still work when these eventually go away.
5633 *) New extension functions for OCSP structures, these follow the
5634 same conventions as certificates and CRLs.
5637 *) New function X509V3_add1_i2d(). This automatically encodes and
5638 adds an extension. Its behaviour can be customised with various
5639 flags to append, replace or delete. Various wrappers added for
5640 certifcates and CRLs.
5643 *) Fix to avoid calling the underlying ASN1 print routine when
5644 an extension cannot be parsed. Correct a typo in the
5645 OCSP_SERVICELOC extension. Tidy up print OCSP format.
5648 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
5649 entries for variables.
5652 *) Add functionality to apps/openssl.c for detecting locking
5653 problems: As the program is single-threaded, all we have
5654 to do is register a locking callback using an array for
5655 storing which locks are currently held by the program.
5658 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
5659 SSL_get_ex_data_X509_STORE_idx(), which is used in
5660 ssl_verify_cert_chain() and thus can be called at any time
5661 during TLS/SSL handshakes so that thread-safety is essential.
5662 Unfortunately, the ex_data design is not at all suited
5663 for multi-threaded use, so it probably should be abolished.
5666 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
5667 [Broadcom, tweaked and integrated by Geoff Thorpe]
5669 *) Move common extension printing code to new function
5670 X509V3_print_extensions(). Reorganise OCSP print routines and
5671 implement some needed OCSP ASN1 functions. Add OCSP extensions.
5674 *) New function X509_signature_print() to remove duplication in some
5678 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
5679 set (this was treated exactly the same as SET OF previously). This
5680 is used to reorder the STACK representing the structure to match the
5681 encoding. This will be used to get round a problem where a PKCS7
5682 structure which was signed could not be verified because the STACK
5683 order did not reflect the encoded order.
5686 *) Reimplement the OCSP ASN1 module using the new code.
5689 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
5690 for its ASN1 operations. The old style function pointers still exist
5691 for now but they will eventually go away.
5694 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
5695 completely replaces the old ASN1 functionality with a table driven
5696 encoder and decoder which interprets an ASN1_ITEM structure describing
5697 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5698 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5699 has also been converted to the new form.
5702 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5703 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5704 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5705 for negative moduli.
5708 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5709 of not touching the result's sign bit.
5712 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5716 *) Changed the LHASH code to use prototypes for callbacks, and created
5717 macros to declare and implement thin (optionally static) functions
5718 that provide type-safety and avoid function pointer casting for the
5719 type-specific callbacks.
5722 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5724 [Veers Staats <staatsvr@asc.hpc.mil>,
5725 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5727 *) Reformat the FAQ so the different questions and answers can be divided
5728 in sections depending on the subject.
5731 *) Have the zlib compression code load ZLIB.DLL dynamically under
5735 *) New function BN_mod_sqrt for computing square roots modulo a prime
5736 (using the probabilistic Tonelli-Shanks algorithm unless
5737 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5738 be handled deterministically).
5739 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5741 *) Make BN_mod_inverse faster by explicitly handling small quotients
5742 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5743 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5746 *) New function BN_kronecker.
5749 *) Fix BN_gcd so that it works on negative inputs; the result is
5750 positive unless both parameters are zero.
5751 Previously something reasonably close to an infinite loop was
5752 possible because numbers could be growing instead of shrinking
5753 in the implementation of Euclid's algorithm.
5756 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5757 sign of the number in question.
5759 Fix BN_is_word(a,w) to work correctly for w == 0.
5761 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5762 because its test if the absolute value of 'a' equals 'w'.
5763 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5764 it exists mostly for use in the implementations of BN_is_zero(),
5765 BN_is_one(), and BN_is_word().
5768 *) New function BN_swap.
5771 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5772 the exponentiation functions are more likely to produce reasonable
5773 results on negative inputs.
5776 *) Change BN_mod_mul so that the result is always non-negative.
5777 Previously, it could be negative if one of the factors was negative;
5778 I don't think anyone really wanted that behaviour.
5781 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5782 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5783 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5784 and add new functions:
5793 BN_mod_lshift1_quick
5797 These functions always generate non-negative results.
5799 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5800 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5802 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5803 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5804 be reduced modulo m.
5805 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5808 The following entry accidentily appeared in the CHANGES file
5809 distributed with OpenSSL 0.9.7. The modifications described in
5810 it do *not* apply to OpenSSL 0.9.7.
5812 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5813 was actually never needed) and in BN_mul(). The removal in BN_mul()
5814 required a small change in bn_mul_part_recursive() and the addition
5815 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5816 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5817 bn_sub_words() and bn_add_words() except they take arrays with
5822 *) In 'openssl passwd', verify passwords read from the terminal
5823 unless the '-salt' option is used (which usually means that
5824 verification would just waste user's time since the resulting
5825 hash is going to be compared with some given password hash)
5826 or the new '-noverify' option is used.
5828 This is an incompatible change, but it does not affect
5829 non-interactive use of 'openssl passwd' (passwords on the command
5830 line, '-stdin' option, '-in ...' option) and thus should not
5834 *) Remove all references to RSAref, since there's no more need for it.
5837 *) Make DSO load along a path given through an environment variable
5838 (SHLIB_PATH) with shl_load().
5841 *) Constify the ENGINE code as a result of BIGNUM constification.
5842 Also constify the RSA code and most things related to it. In a
5843 few places, most notable in the depth of the ASN.1 code, ugly
5844 casts back to non-const were required (to be solved at a later
5848 *) Make it so the openssl application has all engines loaded by default.
5851 *) Constify the BIGNUM routines a little more.
5854 *) Add the following functions:
5856 ENGINE_load_cswift()
5858 ENGINE_load_atalla()
5860 ENGINE_load_builtin_engines()
5862 That way, an application can itself choose if external engines that
5863 are built-in in OpenSSL shall ever be used or not. The benefit is
5864 that applications won't have to be linked with libdl or other dso
5865 libraries unless it's really needed.
5867 Changed 'openssl engine' to load all engines on demand.
5868 Changed the engine header files to avoid the duplication of some
5869 declarations (they differed!).
5872 *) 'openssl engine' can now list capabilities.
5875 *) Better error reporting in 'openssl engine'.
5878 *) Never call load_dh_param(NULL) in s_server.
5881 *) Add engine application. It can currently list engines by name and
5882 identity, and test if they are actually available.
5885 *) Improve RPM specification file by forcing symbolic linking and making
5886 sure the installed documentation is also owned by root.root.
5887 [Damien Miller <djm@mindrot.org>]
5889 *) Give the OpenSSL applications more possibilities to make use of
5890 keys (public as well as private) handled by engines.
5893 *) Add OCSP code that comes from CertCo.
5896 *) Add VMS support for the Rijndael code.
5899 *) Added untested support for Nuron crypto accelerator.
5902 *) Add support for external cryptographic devices. This code was
5903 previously distributed separately as the "engine" branch.
5904 [Geoff Thorpe, Richard Levitte]
5906 *) Rework the filename-translation in the DSO code. It is now possible to
5907 have far greater control over how a "name" is turned into a filename
5908 depending on the operating environment and any oddities about the
5909 different shared library filenames on each system.
5912 *) Support threads on FreeBSD-elf in Configure.
5915 *) Fix for SHA1 assembly problem with MASM: it produces
5916 warnings about corrupt line number information when assembling
5917 with debugging information. This is caused by the overlapping
5919 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5922 NCONF_get_number() has no error checking at all. As a replacement,
5923 NCONF_get_number_e() is defined (_e for "error checking") and is
5924 promoted strongly. The old NCONF_get_number is kept around for
5925 binary backward compatibility.
5926 Make it possible for methods to load from something other than a BIO,
5927 by providing a function pointer that is given a name instead of a BIO.
5928 For example, this could be used to load configuration data from an
5932 *) Fix for non blocking accept BIOs. Added new I/O special reason
5933 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5934 with non blocking I/O was not possible because no retry code was
5935 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5939 *) Added the beginnings of Rijndael support.
5942 *) Fix for bug in DirectoryString mask setting. Add support for
5943 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5944 to allow certificate printing to more controllable, additional
5945 'certopt' option to 'x509' to allow new printing options to be
5949 *) Clean old EAY MD5 hack from e_os.h.
5952 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5954 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5955 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5956 [Joe Orton, Steve Henson]
5958 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5960 *) Fix additional bug revealed by the NISCC test suite:
5962 Stop bug triggering large recursion when presented with
5963 certain ASN.1 tags (CVE-2003-0851)
5966 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5968 *) Fix various bugs revealed by running the NISCC test suite:
5970 Stop out of bounds reads in the ASN1 code when presented with
5971 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5973 If verify callback ignores invalid public key errors don't try to check
5974 certificate signature with the NULL public key.
5978 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5979 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5983 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5984 extra data after the compression methods not only for TLS 1.0
5985 but also for SSL 3.0 (as required by the specification).
5986 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5988 *) Change X509_certificate_type() to mark the key as exported/exportable
5989 when it's 512 *bits* long, not 512 bytes.
5992 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5994 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5995 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5996 a protocol version number mismatch like a decryption error
5997 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
6000 *) Turn on RSA blinding by default in the default implementation
6001 to avoid a timing attack. Applications that don't want it can call
6002 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
6003 They would be ill-advised to do so in most cases.
6004 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
6006 *) Change RSA blinding code so that it works when the PRNG is not
6007 seeded (in this case, the secret RSA exponent is abused as
6008 an unpredictable seed -- if it is not unpredictable, there
6009 is no point in blinding anyway). Make RSA blinding thread-safe
6010 by remembering the creator's thread ID in rsa->blinding and
6011 having all other threads use local one-time blinding factors
6012 (this requires more computation than sharing rsa->blinding, but
6013 avoids excessive locking; and if an RSA object is not shared
6014 between threads, blinding will still be very fast).
6017 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
6019 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
6020 via timing by performing a MAC computation even if incorrrect
6021 block cipher padding has been found. This is a countermeasure
6022 against active attacks where the attacker has to distinguish
6023 between bad padding and a MAC verification error. (CVE-2003-0078)
6025 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
6026 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
6027 Martin Vuagnoux (EPFL, Ilion)]
6029 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
6031 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
6032 memory from it's contents. This is done with a counter that will
6033 place alternating values in each byte. This can be used to solve
6034 two issues: 1) the removal of calls to memset() by highly optimizing
6035 compilers, and 2) cleansing with other values than 0, since those can
6036 be read through on certain media, for example a swap space on disk.
6039 *) Bugfix: client side session caching did not work with external caching,
6040 because the session->cipher setting was not restored when reloading
6041 from the external cache. This problem was masked, when
6042 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
6043 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
6046 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
6047 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
6048 [Zeev Lieber <zeev-l@yahoo.com>]
6050 *) Undo an undocumented change introduced in 0.9.6e which caused
6051 repeated calls to OpenSSL_add_all_ciphers() and
6052 OpenSSL_add_all_digests() to be ignored, even after calling
6056 *) Change the default configuration reader to deal with last line not
6057 being properly terminated.
6060 *) Change X509_NAME_cmp() so it applies the special rules on handling
6061 DN values that are of type PrintableString, as well as RDNs of type
6062 emailAddress where the value has the type ia5String.
6063 [stefank@valicert.com via Richard Levitte]
6065 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
6066 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
6067 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
6068 the bitwise-OR of the two for use by the majority of applications
6069 wanting this behaviour, and update the docs. The documented
6070 behaviour and actual behaviour were inconsistent and had been
6071 changing anyway, so this is more a bug-fix than a behavioural
6073 [Geoff Thorpe, diagnosed by Nadav Har'El]
6075 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
6076 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
6079 *) Fix initialization code race conditions in
6080 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
6081 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
6082 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
6083 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
6084 ssl2_get_cipher_by_char(),
6085 ssl3_get_cipher_by_char().
6086 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
6088 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
6089 the cached sessions are flushed, as the remove_cb() might use ex_data
6090 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
6091 (see [openssl.org #212]).
6092 [Geoff Thorpe, Lutz Jaenicke]
6094 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
6095 length, instead of the encoding length to d2i_ASN1_OBJECT.
6098 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
6100 *) [In 0.9.6g-engine release:]
6101 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
6102 [Lynn Gazis <lgazis@rainbow.com>]
6104 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
6106 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
6107 and get fix the header length calculation.
6108 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
6109 Alon Kantor <alonk@checkpoint.com> (and others),
6112 *) Use proper error handling instead of 'assertions' in buffer
6113 overflow checks added in 0.9.6e. This prevents DoS (the
6114 assertions could call abort()).
6115 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
6117 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
6119 *) Add various sanity checks to asn1_get_length() to reject
6120 the ASN1 length bytes if they exceed sizeof(long), will appear
6121 negative or the content length exceeds the length of the
6123 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
6125 *) Fix cipher selection routines: ciphers without encryption had no flags
6126 for the cipher strength set and where therefore not handled correctly
6127 by the selection routines (PR #130).
6130 *) Fix EVP_dsa_sha macro.
6134 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
6135 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
6136 that was added in OpenSSL 0.9.6d.
6138 As the countermeasure turned out to be incompatible with some
6139 broken SSL implementations, the new option is part of SSL_OP_ALL.
6140 SSL_OP_ALL is usually employed when compatibility with weird SSL
6141 implementations is desired (e.g. '-bugs' option to 's_client' and
6142 's_server'), so the new option is automatically set in many
6146 *) Changes in security patch:
6148 Changes marked "(CHATS)" were sponsored by the Defense Advanced
6149 Research Projects Agency (DARPA) and Air Force Research Laboratory,
6150 Air Force Materiel Command, USAF, under agreement number
6153 *) Add various sanity checks to asn1_get_length() to reject
6154 the ASN1 length bytes if they exceed sizeof(long), will appear
6155 negative or the content length exceeds the length of the
6156 supplied buffer. (CVE-2002-0659)
6157 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
6159 *) Assertions for various potential buffer overflows, not known to
6161 [Ben Laurie (CHATS)]
6163 *) Various temporary buffers to hold ASCII versions of integers were
6164 too small for 64 bit platforms. (CVE-2002-0655)
6165 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
6167 *) Remote buffer overflow in SSL3 protocol - an attacker could
6168 supply an oversized session ID to a client. (CVE-2002-0656)
6169 [Ben Laurie (CHATS)]
6171 *) Remote buffer overflow in SSL2 protocol - an attacker could
6172 supply an oversized client master key. (CVE-2002-0656)
6173 [Ben Laurie (CHATS)]
6175 Changes between 0.9.6c and 0.9.6d [9 May 2002]
6177 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
6178 encoded as NULL) with id-dsa-with-sha1.
6179 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
6181 *) Check various X509_...() return values in apps/req.c.
6182 [Nils Larsch <nla@trustcenter.de>]
6184 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
6185 an end-of-file condition would erronously be flagged, when the CRLF
6186 was just at the end of a processed block. The bug was discovered when
6187 processing data through a buffering memory BIO handing the data to a
6188 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
6189 <ptsekov@syntrex.com> and Nedelcho Stanev.
6192 *) Implement a countermeasure against a vulnerability recently found
6193 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
6194 before application data chunks to avoid the use of known IVs
6195 with data potentially chosen by the attacker.
6198 *) Fix length checks in ssl3_get_client_hello().
6201 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
6202 to prevent ssl3_read_internal() from incorrectly assuming that
6203 ssl3_read_bytes() found application data while handshake
6204 processing was enabled when in fact s->s3->in_read_app_data was
6205 merely automatically cleared during the initial handshake.
6206 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
6208 *) Fix object definitions for Private and Enterprise: they were not
6209 recognized in their shortname (=lowercase) representation. Extend
6210 obj_dat.pl to issue an error when using undefined keywords instead
6211 of silently ignoring the problem (Svenning Sorensen
6212 <sss@sss.dnsalias.net>).
6215 *) Fix DH_generate_parameters() so that it works for 'non-standard'
6216 generators, i.e. generators other than 2 and 5. (Previously, the
6217 code did not properly initialise the 'add' and 'rem' values to
6218 BN_generate_prime().)
6220 In the new general case, we do not insist that 'generator' is
6221 actually a primitive root: This requirement is rather pointless;
6222 a generator of the order-q subgroup is just as good, if not
6226 *) Map new X509 verification errors to alerts. Discovered and submitted by
6227 Tom Wu <tom@arcot.com>.
6230 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
6231 returning non-zero before the data has been completely received
6232 when using non-blocking I/O.
6233 [Bodo Moeller; problem pointed out by John Hughes]
6235 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
6236 [Ben Laurie, Lutz Jaenicke]
6238 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
6239 Yoram Zahavi <YoramZ@gilian.com>).
6242 *) Add information about CygWin 1.3 and on, and preserve proper
6243 configuration for the versions before that.
6244 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
6246 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
6247 check whether we deal with a copy of a session and do not delete from
6248 the cache in this case. Problem reported by "Izhar Shoshani Levi"
6249 <izhar@checkpoint.com>.
6252 *) Do not store session data into the internal session cache, if it
6253 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
6254 flag is set). Proposed by Aslam <aslam@funk.com>.
6257 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
6261 *) [In 0.9.6d-engine release:]
6262 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
6263 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
6265 *) Add the configuration target linux-s390x.
6266 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
6268 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
6269 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
6270 variable as an indication that a ClientHello message has been
6271 received. As the flag value will be lost between multiple
6272 invocations of ssl3_accept when using non-blocking I/O, the
6273 function may not be aware that a handshake has actually taken
6274 place, thus preventing a new session from being added to the
6277 To avoid this problem, we now set s->new_session to 2 instead of
6278 using a local variable.
6279 [Lutz Jaenicke, Bodo Moeller]
6281 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
6282 if the SSL_R_LENGTH_MISMATCH error is detected.
6283 [Geoff Thorpe, Bodo Moeller]
6285 *) New 'shared_ldflag' column in Configure platform table.
6288 *) Fix EVP_CIPHER_mode macro.
6289 ["Dan S. Camper" <dan@bti.net>]
6291 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
6292 type, we must throw them away by setting rr->length to 0.
6293 [D P Chang <dpc@qualys.com>]
6295 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
6297 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
6298 <Dominikus.Scherkl@biodata.com>. (The previous implementation
6299 worked incorrectly for those cases where range = 10..._2 and
6300 3*range is two bits longer than range.)
6303 *) Only add signing time to PKCS7 structures if it is not already
6307 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
6308 OBJ_ld_ce should be OBJ_id_ce.
6309 Also some ip-pda OIDs in crypto/objects/objects.txt were
6310 incorrect (cf. RFC 3039).
6311 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
6313 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
6314 returns early because it has nothing to do.
6315 [Andy Schneider <andy.schneider@bjss.co.uk>]
6317 *) [In 0.9.6c-engine release:]
6318 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
6319 [Andy Schneider <andy.schneider@bjss.co.uk>]
6321 *) [In 0.9.6c-engine release:]
6322 Add support for Cryptographic Appliance's keyserver technology.
6323 (Use engine 'keyclient')
6324 [Cryptographic Appliances and Geoff Thorpe]
6326 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
6327 is called via tools/c89.sh because arguments have to be
6328 rearranged (all '-L' options must appear before the first object
6330 [Richard Shapiro <rshapiro@abinitio.com>]
6332 *) [In 0.9.6c-engine release:]
6333 Add support for Broadcom crypto accelerator cards, backported
6335 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
6337 *) [In 0.9.6c-engine release:]
6338 Add support for SureWare crypto accelerator cards from
6339 Baltimore Technologies. (Use engine 'sureware')
6340 [Baltimore Technologies and Mark Cox]
6342 *) [In 0.9.6c-engine release:]
6343 Add support for crypto accelerator cards from Accelerated
6344 Encryption Processing, www.aep.ie. (Use engine 'aep')
6345 [AEP Inc. and Mark Cox]
6347 *) Add a configuration entry for gcc on UnixWare.
6348 [Gary Benson <gbenson@redhat.com>]
6350 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
6351 messages are stored in a single piece (fixed-length part and
6352 variable-length part combined) and fix various bugs found on the way.
6355 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
6356 instead. BIO_gethostbyname() does not know what timeouts are
6357 appropriate, so entries would stay in cache even when they have
6359 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
6361 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
6362 faced with a pathologically small ClientHello fragment that does
6363 not contain client_version: Instead of aborting with an error,
6364 simply choose the highest available protocol version (i.e.,
6365 TLS 1.0 unless it is disabled). In practice, ClientHello
6366 messages are never sent like this, but this change gives us
6367 strictly correct behaviour at least for TLS.
6370 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
6371 never resets s->method to s->ctx->method when called from within
6372 one of the SSL handshake functions.
6373 [Bodo Moeller; problem pointed out by Niko Baric]
6375 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
6376 (sent using the client's version number) if client_version is
6377 smaller than the protocol version in use. Also change
6378 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
6379 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
6380 the client will at least see that alert.
6383 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
6387 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
6388 client receives HelloRequest while in a handshake.
6389 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
6391 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
6392 should end in 'break', not 'goto end' which circuments various
6393 cleanups done in state SSL_ST_OK. But session related stuff
6394 must be disabled for SSL_ST_OK in the case that we just sent a
6397 Also avoid some overhead by not calling ssl_init_wbio_buffer()
6398 before just sending a HelloRequest.
6399 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
6401 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
6402 reveal whether illegal block cipher padding was found or a MAC
6403 verification error occured. (Neither SSLerr() codes nor alerts
6404 are directly visible to potential attackers, but the information
6405 may leak via logfiles.)
6407 Similar changes are not required for the SSL 2.0 implementation
6408 because the number of padding bytes is sent in clear for SSL 2.0,
6409 and the extra bytes are just ignored. However ssl/s2_pkt.c
6410 failed to verify that the purported number of padding bytes is in
6414 *) Add OpenUNIX-8 support including shared libraries
6415 (Boyd Lynn Gerber <gerberb@zenez.com>).
6418 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
6419 'wristwatch attack' using huge encoding parameters (cf.
6420 James H. Manger's CRYPTO 2001 paper). Note that the
6421 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
6422 encoding parameters and hence was not vulnerable.
6425 *) BN_sqr() bug fix.
6426 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
6428 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
6429 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
6430 followed by modular reduction.
6431 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
6433 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
6434 equivalent based on BN_pseudo_rand() instead of BN_rand().
6437 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
6438 This function was broken, as the check for a new client hello message
6439 to handle SGC did not allow these large messages.
6440 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
6443 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
6446 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
6447 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
6450 *) Rework the configuration and shared library support for Tru64 Unix.
6451 The configuration part makes use of modern compiler features and
6452 still retains old compiler behavior for those that run older versions
6453 of the OS. The shared library support part includes a variant that
6454 uses the RPATH feature, and is available through the special
6455 configuration target "alpha-cc-rpath", which will never be selected
6457 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
6459 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
6460 with the same message size as in ssl3_get_certificate_request().
6461 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
6462 messages might inadvertently be reject as too long.
6463 [Petr Lampa <lampa@fee.vutbr.cz>]
6465 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
6468 *) Modified SSL library such that the verify_callback that has been set
6469 specificly for an SSL object with SSL_set_verify() is actually being
6470 used. Before the change, a verify_callback set with this function was
6471 ignored and the verify_callback() set in the SSL_CTX at the time of
6472 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
6473 to allow the necessary settings.
6476 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
6477 explicitly to NULL, as at least on Solaris 8 this seems not always to be
6478 done automatically (in contradiction to the requirements of the C
6479 standard). This made problems when used from OpenSSH.
6482 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
6483 dh->length and always used
6485 BN_rand_range(priv_key, dh->p).
6487 BN_rand_range() is not necessary for Diffie-Hellman, and this
6488 specific range makes Diffie-Hellman unnecessarily inefficient if
6489 dh->length (recommended exponent length) is much smaller than the
6490 length of dh->p. We could use BN_rand_range() if the order of
6491 the subgroup was stored in the DH structure, but we only have
6496 BN_rand(priv_key, l, ...)
6498 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
6504 RSA_eay_public_encrypt
6505 RSA_eay_private_decrypt
6506 RSA_eay_private_encrypt (signing)
6507 RSA_eay_public_decrypt (signature verification)
6509 (default implementations for RSA_public_encrypt,
6510 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
6511 always reject numbers >= n.
6514 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
6515 to synchronize access to 'locking_thread'. This is necessary on
6516 systems where access to 'locking_thread' (an 'unsigned long'
6517 variable) is not atomic.
6520 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
6521 *before* setting the 'crypto_lock_rand' flag. The previous code had
6522 a race condition if 0 is a valid thread ID.
6523 [Travis Vitek <vitek@roguewave.com>]
6525 *) Add support for shared libraries under Irix.
6526 [Albert Chin-A-Young <china@thewrittenword.com>]
6528 *) Add configuration option to build on Linux on both big-endian and
6530 [Ralf Baechle <ralf@uni-koblenz.de>]
6532 *) Add the possibility to create shared libraries on HP-UX.
6535 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
6537 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
6538 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
6539 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
6540 PRNG state recovery was possible based on the output of
6541 one PRNG request appropriately sized to gain knowledge on
6542 'md' followed by enough consecutive 1-byte PRNG requests
6543 to traverse all of 'state'.
6545 1. When updating 'md_local' (the current thread's copy of 'md')
6546 during PRNG output generation, hash all of the previous
6547 'md_local' value, not just the half used for PRNG output.
6549 2. Make the number of bytes from 'state' included into the hash
6550 independent from the number of PRNG bytes requested.
6552 The first measure alone would be sufficient to avoid
6553 Markku-Juhani's attack. (Actually it had never occurred
6554 to me that the half of 'md_local' used for chaining was the
6555 half from which PRNG output bytes were taken -- I had always
6556 assumed that the secret half would be used.) The second
6557 measure makes sure that additional data from 'state' is never
6558 mixed into 'md_local' in small portions; this heuristically
6559 further strengthens the PRNG.
6562 *) Fix crypto/bn/asm/mips3.s.
6565 *) When only the key is given to "enc", the IV is undefined. Print out
6566 an error message in this case.
6569 *) Handle special case when X509_NAME is empty in X509 printing routines.
6572 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
6573 positive and less than q.
6576 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
6577 used: it isn't thread safe and the add_lock_callback should handle
6579 [Paul Rose <Paul.Rose@bridge.com>]
6581 *) Verify that incoming data obeys the block size in
6582 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
6586 [Ulf Möller, Bodo Möller]
6588 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
6589 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
6590 when fixing the server behaviour for backwards-compatible 'client
6591 hello' messages. (Note that the attack is impractical against
6592 SSL 3.0 and TLS 1.0 anyway because length and version checking
6593 means that the probability of guessing a valid ciphertext is
6594 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
6597 Before 0.9.5, the countermeasure (hide the error by generating a
6598 random 'decryption result') did not work properly because
6599 ERR_clear_error() was missing, meaning that SSL_get_error() would
6600 detect the supposedly ignored error.
6602 Both problems are now fixed.
6605 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
6606 (previously it was 1024).
6609 *) Fix for compatibility mode trust settings: ignore trust settings
6610 unless some valid trust or reject settings are present.
6613 *) Fix for blowfish EVP: its a variable length cipher.
6616 *) Fix various bugs related to DSA S/MIME verification. Handle missing
6617 parameters in DSA public key structures and return an error in the
6618 DSA routines if parameters are absent.
6621 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
6622 in the current directory if neither $RANDFILE nor $HOME was set.
6623 RAND_file_name() in 0.9.6a returned NULL in this case. This has
6624 caused some confusion to Windows users who haven't defined $HOME.
6625 Thus RAND_file_name() is changed again: e_os.h can define a
6626 DEFAULT_HOME, which will be used if $HOME is not set.
6627 For Windows, we use "C:"; on other platforms, we still require
6628 environment variables.
6630 *) Move 'if (!initialized) RAND_poll()' into regions protected by
6631 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
6632 having multiple threads call RAND_poll() concurrently.
6635 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
6636 combination of a flag and a thread ID variable.
6637 Otherwise while one thread is in ssleay_rand_bytes (which sets the
6638 flag), *other* threads can enter ssleay_add_bytes without obeying
6639 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
6640 that they do not hold after the first thread unsets add_do_not_lock).
6643 *) Change bctest again: '-x' expressions are not available in all
6647 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
6649 *) Fix a couple of memory leaks in PKCS7_dataDecode()
6650 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
6652 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
6653 the default extension for executables, if any. Also, make the perl
6654 scripts that use symlink() to test if it really exists and use "cp"
6655 if it doesn't. All this made OpenSSL compilable and installable in
6659 *) Fix for asn1_GetSequence() for indefinite length constructed data.
6660 If SEQUENCE is length is indefinite just set c->slen to the total
6661 amount of data available.
6662 [Steve Henson, reported by shige@FreeBSD.org]
6663 [This change does not apply to 0.9.7.]
6665 *) Change bctest to avoid here-documents inside command substitution
6666 (workaround for FreeBSD /bin/sh bug).
6667 For compatibility with Ultrix, avoid shell functions (introduced
6668 in the bctest version that searches along $PATH).
6671 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
6672 with des_encrypt() defined on some operating systems, like Solaris
6676 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
6677 On the Importance of Eliminating Errors in Cryptographic
6678 Computations, J. Cryptology 14 (2001) 2, 101-119,
6679 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
6682 *) MIPS assembler BIGNUM division bug fix.
6685 *) Disabled incorrect Alpha assembler code.
6688 *) Fix PKCS#7 decode routines so they correctly update the length
6689 after reading an EOC for the EXPLICIT tag.
6691 [This change does not apply to 0.9.7.]
6693 *) Fix bug in PKCS#12 key generation routines. This was triggered
6694 if a 3DES key was generated with a 0 initial byte. Include
6695 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6696 (but broken) behaviour.
6699 *) Enhance bctest to search for a working bc along $PATH and print
6701 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6703 *) Fix memory leaks in err.c: free err_data string if necessary;
6704 don't write to the wrong index in ERR_set_error_data.
6707 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6711 *) Replace rdtsc with _emit statements for VC++ version 5.
6712 [Jeremy Cooper <jeremy@baymoo.org>]
6714 *) Make it possible to reuse SSLv2 sessions.
6717 *) In copy_email() check for >= 0 as a return value for
6718 X509_NAME_get_index_by_NID() since 0 is a valid index.
6719 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6721 *) Avoid coredump with unsupported or invalid public keys by checking if
6722 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6723 PKCS7_verify() fails with non detached data.
6726 *) Don't use getenv in library functions when run as setuid/setgid.
6727 New function OPENSSL_issetugid().
6730 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6731 due to incorrect handling of multi-threading:
6733 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6735 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6737 3. Count how many times MemCheck_off() has been called so that
6738 nested use can be treated correctly. This also avoids
6739 inband-signalling in the previous code (which relied on the
6740 assumption that thread ID 0 is impossible).
6743 *) Add "-rand" option also to s_client and s_server.
6746 *) Fix CPU detection on Irix 6.x.
6747 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6748 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6750 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6753 [This change does not apply to 0.9.7.]
6755 *) Use the cached encoding of an X509_NAME structure rather than
6756 copying it. This is apparently the reason for the libsafe "errors"
6757 but the code is actually correct.
6760 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6761 Bleichenbacher's DSA attack.
6762 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6763 to be set and top=0 forces the highest bit to be set; top=-1 is new
6764 and leaves the highest bit random.
6765 [Ulf Moeller, Bodo Moeller]
6767 *) In the NCONF_...-based implementations for CONF_... queries
6768 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6769 a temporary CONF structure with the data component set to NULL
6770 (which gives segmentation faults in lh_retrieve).
6771 Instead, use NULL for the CONF pointer in CONF_get_string and
6772 CONF_get_number (which may use environment variables) and directly
6773 return NULL from CONF_get_section.
6776 *) Fix potential buffer overrun for EBCDIC.
6779 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6780 keyUsage if basicConstraints absent for a CA.
6783 *) Make SMIME_write_PKCS7() write mail header values with a format that
6784 is more generally accepted (no spaces before the semicolon), since
6785 some programs can't parse those values properly otherwise. Also make
6786 sure BIO's that break lines after each write do not create invalid
6790 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6791 macros previously used would not encode an empty SEQUENCE OF
6792 and break the signature.
6794 [This change does not apply to 0.9.7.]
6796 *) Zero the premaster secret after deriving the master secret in
6800 *) Add some EVP_add_digest_alias registrations (as found in
6801 OpenSSL_add_all_digests()) to SSL_library_init()
6802 aka OpenSSL_add_ssl_algorithms(). This provides improved
6803 compatibility with peers using X.509 certificates
6804 with unconventional AlgorithmIdentifier OIDs.
6807 *) Fix for Irix with NO_ASM.
6808 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6810 *) ./config script fixes.
6811 [Ulf Moeller, Richard Levitte]
6813 *) Fix 'openssl passwd -1'.
6816 *) Change PKCS12_key_gen_asc() so it can cope with non null
6817 terminated strings whose length is passed in the passlen
6818 parameter, for example from PEM callbacks. This was done
6819 by adding an extra length parameter to asc2uni().
6820 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6822 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6823 call failed, free the DSA structure.
6826 *) Fix to uni2asc() to cope with zero length Unicode strings.
6827 These are present in some PKCS#12 files.
6830 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6831 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6832 when writing a 32767 byte record.
6833 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6835 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6836 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6838 (RSA objects have a reference count access to which is protected
6839 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6840 so they are meant to be shared between threads.)
6841 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6842 "Reddie, Steven" <Steven.Reddie@ca.com>]
6844 *) Fix a deadlock in CRYPTO_mem_leaks().
6847 *) Use better test patterns in bntest.
6850 *) rand_win.c fix for Borland C.
6853 *) BN_rshift bugfix for n == 0.
6856 *) Add a 'bctest' script that checks for some known 'bc' bugs
6857 so that 'make test' does not abort just because 'bc' is broken.
6860 *) Store verify_result within SSL_SESSION also for client side to
6861 avoid potential security hole. (Re-used sessions on the client side
6862 always resulted in verify_result==X509_V_OK, not using the original
6863 result of the server certificate verification.)
6866 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6867 SSL3_RT_APPLICATION_DATA, return 0.
6868 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6872 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6873 releases, have been re-implemented by renaming the previous
6874 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6875 and ssl3_read_internal, respectively, and adding 'peek' parameters
6876 to them. The new ssl[23]_{read,peek} functions are calls to
6877 ssl[23]_read_internal with the 'peek' flag set appropriately.
6878 A 'peek' parameter has also been added to ssl3_read_bytes, which
6879 does the actual work for ssl3_read_internal.
6882 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6883 the method-specific "init()" handler. Also clean up ex_data after
6884 calling the method-specific "finish()" handler. Previously, this was
6885 happening the other way round.
6888 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6889 The previous value, 12, was not always sufficient for BN_mod_exp().
6892 *) Make sure that shared libraries get the internal name engine with
6893 the full version number and not just 0. This should mark the
6894 shared libraries as not backward compatible. Of course, this should
6895 be changed again when we can guarantee backward binary compatibility.
6898 *) Fix typo in get_cert_by_subject() in by_dir.c
6899 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6901 *) Rework the system to generate shared libraries:
6903 - Make note of the expected extension for the shared libraries and
6904 if there is a need for symbolic links from for example libcrypto.so.0
6905 to libcrypto.so.0.9.7. There is extended info in Configure for
6908 - Make as few rebuilds of the shared libraries as possible.
6910 - Still avoid linking the OpenSSL programs with the shared libraries.
6912 - When installing, install the shared libraries separately from the
6916 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6918 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6919 and not in SSL_clear because the latter is also used by the
6920 accept/connect functions; previously, the settings made by
6921 SSL_set_read_ahead would be lost during the handshake.
6922 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6924 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6925 Previously, it would create entries for disableed algorithms no
6929 *) Added several new manual pages for SSL_* function.
6932 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6934 *) In ssl23_get_client_hello, generate an error message when faced
6935 with an initial SSL 3.0/TLS record that is too small to contain the
6936 first two bytes of the ClientHello message, i.e. client_version.
6937 (Note that this is a pathologic case that probably has never happened
6938 in real life.) The previous approach was to use the version number
6939 from the record header as a substitute; but our protocol choice
6940 should not depend on that one because it is not authenticated
6941 by the Finished messages.
6944 *) More robust randomness gathering functions for Windows.
6945 [Jeffrey Altman <jaltman@columbia.edu>]
6947 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6948 not set then we don't setup the error code for issuer check errors
6949 to avoid possibly overwriting other errors which the callback does
6950 handle. If an application does set the flag then we assume it knows
6951 what it is doing and can handle the new informational codes
6955 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6956 a general "ANY" type, as such it should be able to decode anything
6957 including tagged types. However it didn't check the class so it would
6958 wrongly interpret tagged types in the same way as their universal
6959 counterpart and unknown types were just rejected. Changed so that the
6960 tagged and unknown types are handled in the same way as a SEQUENCE:
6961 that is the encoding is stored intact. There is also a new type
6962 "V_ASN1_OTHER" which is used when the class is not universal, in this
6963 case we have no idea what the actual type is so we just lump them all
6967 *) On VMS, stdout may very well lead to a file that is written to
6968 in a record-oriented fashion. That means that every write() will
6969 write a separate record, which will be read separately by the
6970 programs trying to read from it. This can be very confusing.
6972 The solution is to put a BIO filter in the way that will buffer
6973 text until a linefeed is reached, and then write everything a
6974 line at a time, so every record written will be an actual line,
6975 not chunks of lines and not (usually doesn't happen, but I've
6976 seen it once) several lines in one record. BIO_f_linebuffer() is
6979 Currently, it's a VMS-only method, because that's where it has
6980 been tested well enough.
6983 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6984 it can return incorrect results.
6985 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6986 but it was in 0.9.6-beta[12].)
6989 *) Disable the check for content being present when verifying detached
6990 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6991 include zero length content when signing messages.
6994 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6995 BIO_ctrl (for BIO pairs).
6998 *) Add DSO method for VMS.
7001 *) Bug fix: Montgomery multiplication could produce results with the
7005 *) Add RPM specification openssl.spec and modify it to build three
7006 packages. The default package contains applications, application
7007 documentation and run-time libraries. The devel package contains
7008 include files, static libraries and function documentation. The
7009 doc package contains the contents of the doc directory. The original
7010 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
7013 *) Add a large number of documentation files for many SSL routines.
7014 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7016 *) Add a configuration entry for Sony News 4.
7017 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
7019 *) Don't set the two most significant bits to one when generating a
7020 random number < q in the DSA library.
7023 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
7024 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
7025 the underlying transport is blocking) if a handshake took place.
7026 (The default behaviour is needed by applications such as s_client
7027 and s_server that use select() to determine when to use SSL_read;
7028 but for applications that know in advance when to expect data, it
7029 just makes things more complicated.)
7032 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
7036 *) Add a few more EBCDIC conditionals that make `req' and `x509'
7037 work better on such systems.
7038 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7040 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
7041 Update PKCS12_parse() so it copies the friendlyName and the
7042 keyid to the certificates aux info.
7045 *) Fix bug in PKCS7_verify() which caused an infinite loop
7046 if there was more than one signature.
7047 [Sven Uszpelkat <su@celocom.de>]
7049 *) Major change in util/mkdef.pl to include extra information
7050 about each symbol, as well as presentig variables as well
7051 as functions. This change means that there's n more need
7052 to rebuild the .num files when some algorithms are excluded.
7055 *) Allow the verify time to be set by an application,
7056 rather than always using the current time.
7059 *) Phase 2 verify code reorganisation. The certificate
7060 verify code now looks up an issuer certificate by a
7061 number of criteria: subject name, authority key id
7062 and key usage. It also verifies self signed certificates
7063 by the same criteria. The main comparison function is
7064 X509_check_issued() which performs these checks.
7066 Lot of changes were necessary in order to support this
7067 without completely rewriting the lookup code.
7069 Authority and subject key identifier are now cached.
7071 The LHASH 'certs' is X509_STORE has now been replaced
7072 by a STACK_OF(X509_OBJECT). This is mainly because an
7073 LHASH can't store or retrieve multiple objects with
7074 the same hash value.
7076 As a result various functions (which were all internal
7077 use only) have changed to handle the new X509_STORE
7078 structure. This will break anything that messed round
7079 with X509_STORE internally.
7081 The functions X509_STORE_add_cert() now checks for an
7082 exact match, rather than just subject name.
7084 The X509_STORE API doesn't directly support the retrieval
7085 of multiple certificates matching a given criteria, however
7086 this can be worked round by performing a lookup first
7087 (which will fill the cache with candidate certificates)
7088 and then examining the cache for matches. This is probably
7089 the best we can do without throwing out X509_LOOKUP
7090 entirely (maybe later...).
7092 The X509_VERIFY_CTX structure has been enhanced considerably.
7094 All certificate lookup operations now go via a get_issuer()
7095 callback. Although this currently uses an X509_STORE it
7096 can be replaced by custom lookups. This is a simple way
7097 to bypass the X509_STORE hackery necessary to make this
7098 work and makes it possible to use more efficient techniques
7099 in future. A very simple version which uses a simple
7100 STACK for its trusted certificate store is also provided
7101 using X509_STORE_CTX_trusted_stack().
7103 The verify_cb() and verify() callbacks now have equivalents
7104 in the X509_STORE_CTX structure.
7106 X509_STORE_CTX also has a 'flags' field which can be used
7107 to customise the verify behaviour.
7110 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
7111 excludes S/MIME capabilities.
7114 *) When a certificate request is read in keep a copy of the
7115 original encoding of the signed data and use it when outputing
7116 again. Signatures then use the original encoding rather than
7117 a decoded, encoded version which may cause problems if the
7118 request is improperly encoded.
7121 *) For consistency with other BIO_puts implementations, call
7122 buffer_write(b, ...) directly in buffer_puts instead of calling
7125 In BIO_puts, increment b->num_write as in BIO_write.
7126 [Peter.Sylvester@EdelWeb.fr]
7128 *) Fix BN_mul_word for the case where the word is 0. (We have to use
7129 BN_zero, we may not return a BIGNUM with an array consisting of
7133 *) Avoid calling abort() from within the library when problems are
7134 detected, except if preprocessor symbols have been defined
7135 (such as REF_CHECK, BN_DEBUG etc.).
7138 *) New openssl application 'rsautl'. This utility can be
7139 used for low level RSA operations. DER public key
7140 BIO/fp routines also added.
7143 *) New Configure entry and patches for compiling on QNX 4.
7144 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
7146 *) A demo state-machine implementation was sponsored by
7147 Nuron (http://www.nuron.com/) and is now available in
7148 demos/state_machine.
7151 *) New options added to the 'dgst' utility for signature
7152 generation and verification.
7155 *) Unrecognized PKCS#7 content types are now handled via a
7156 catch all ASN1_TYPE structure. This allows unsupported
7157 types to be stored as a "blob" and an application can
7158 encode and decode it manually.
7161 *) Fix various signed/unsigned issues to make a_strex.c
7163 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
7165 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
7166 length if passed a buffer. ASN1_INTEGER_to_BN failed
7167 if passed a NULL BN and its argument was negative.
7168 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
7170 *) Modification to PKCS#7 encoding routines to output definite
7171 length encoding. Since currently the whole structures are in
7172 memory there's not real point in using indefinite length
7173 constructed encoding. However if OpenSSL is compiled with
7174 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
7177 *) Added BIO_vprintf() and BIO_vsnprintf().
7180 *) Added more prefixes to parse for in the the strings written
7181 through a logging bio, to cover all the levels that are available
7182 through syslog. The prefixes are now:
7184 PANIC, EMERG, EMR => LOG_EMERG
7185 ALERT, ALR => LOG_ALERT
7186 CRIT, CRI => LOG_CRIT
7187 ERROR, ERR => LOG_ERR
7188 WARNING, WARN, WAR => LOG_WARNING
7189 NOTICE, NOTE, NOT => LOG_NOTICE
7190 INFO, INF => LOG_INFO
7191 DEBUG, DBG => LOG_DEBUG
7193 and as before, if none of those prefixes are present at the
7194 beginning of the string, LOG_ERR is chosen.
7196 On Win32, the LOG_* levels are mapped according to this:
7198 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
7199 LOG_WARNING => EVENTLOG_WARNING_TYPE
7200 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
7204 *) Made it possible to reconfigure with just the configuration
7205 argument "reconf" or "reconfigure". The command line arguments
7206 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
7207 and are retrieved from there when reconfiguring.
7211 [Assar Westerlund <assar@sics.se>, Richard Levitte]
7213 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
7216 *) The obj_dat.pl script was messing up the sorting of object
7217 names. The reason was that it compared the quoted version
7218 of strings as a result "OCSP" > "OCSP Signing" because
7219 " > SPACE. Changed script to store unquoted versions of
7220 names and add quotes on output. It was also omitting some
7221 names from the lookup table if they were given a default
7222 value (that is if SN is missing it is given the same
7223 value as LN and vice versa), these are now added on the
7224 grounds that if an object has a name we should be able to
7225 look it up. Finally added warning output when duplicate
7226 short or long names are found.
7229 *) Changes needed for Tandem NSK.
7230 [Scott Uroff <scott@xypro.com>]
7232 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
7233 RSA_padding_check_SSLv23(), special padding was never detected
7234 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
7235 version rollback attacks was not effective.
7237 In s23_clnt.c, don't use special rollback-attack detection padding
7238 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
7239 client; similarly, in s23_srvr.c, don't do the rollback check if
7240 SSL 2.0 is the only protocol enabled in the server.
7243 *) Make it possible to get hexdumps of unprintable data with 'openssl
7244 asn1parse'. By implication, the functions ASN1_parse_dump() and
7245 BIO_dump_indent() are added.
7248 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
7249 these print out strings and name structures based on various
7250 flags including RFC2253 support and proper handling of
7251 multibyte characters. Added options to the 'x509' utility
7252 to allow the various flags to be set.
7255 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
7256 Also change the functions X509_cmp_current_time() and
7257 X509_gmtime_adj() work with an ASN1_TIME structure,
7258 this will enable certificates using GeneralizedTime in validity
7259 dates to be checked.
7262 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
7263 negative public key encodings) on by default,
7264 NO_NEG_PUBKEY_BUG can be set to disable it.
7267 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
7268 content octets. An i2c_ASN1_OBJECT is unnecessary because
7269 the encoding can be trivially obtained from the structure.
7272 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
7273 not read locks (CRYPTO_r_[un]lock).
7276 *) A first attempt at creating official support for shared
7277 libraries through configuration. I've kept it so the
7278 default is static libraries only, and the OpenSSL programs
7279 are always statically linked for now, but there are
7280 preparations for dynamic linking in place.
7281 This has been tested on Linux and Tru64.
7284 *) Randomness polling function for Win9x, as described in:
7285 Peter Gutmann, Software Generation of Practically Strong
7289 *) Fix so PRNG is seeded in req if using an already existing
7293 *) New options to smime application. -inform and -outform
7294 allow alternative formats for the S/MIME message including
7295 PEM and DER. The -content option allows the content to be
7296 specified separately. This should allow things like Netscape
7297 form signing output easier to verify.
7300 *) Fix the ASN1 encoding of tags using the 'long form'.
7303 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
7304 STRING types. These convert content octets to and from the
7305 underlying type. The actual tag and length octets are
7306 already assumed to have been read in and checked. These
7307 are needed because all other string types have virtually
7308 identical handling apart from the tag. By having versions
7309 of the ASN1 functions that just operate on content octets
7310 IMPLICIT tagging can be handled properly. It also allows
7311 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
7312 and ASN1_INTEGER are identical apart from the tag.
7315 *) Change the handling of OID objects as follows:
7317 - New object identifiers are inserted in objects.txt, following
7318 the syntax given in objects.README.
7319 - objects.pl is used to process obj_mac.num and create a new
7321 - obj_dat.pl is used to create a new obj_dat.h, using the data in
7324 This is currently kind of a hack, and the perl code in objects.pl
7325 isn't very elegant, but it works as I intended. The simplest way
7326 to check that it worked correctly is to look in obj_dat.h and
7327 check the array nid_objs and make sure the objects haven't moved
7328 around (this is important!). Additions are OK, as well as
7329 consistent name changes.
7332 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
7335 *) Addition of the command line parameter '-rand file' to 'openssl req'.
7336 The given file adds to whatever has already been seeded into the
7337 random pool through the RANDFILE configuration file option or
7338 environment variable, or the default random state file.
7341 *) mkstack.pl now sorts each macro group into lexical order.
7342 Previously the output order depended on the order the files
7343 appeared in the directory, resulting in needless rewriting
7347 *) Patches to make OpenSSL compile under Win32 again. Mostly
7348 work arounds for the VC++ problem that it treats func() as
7349 func(void). Also stripped out the parts of mkdef.pl that
7350 added extra typesafe functions: these no longer exist.
7353 *) Reorganisation of the stack code. The macros are now all
7354 collected in safestack.h . Each macro is defined in terms of
7355 a "stack macro" of the form SKM_<name>(type, a, b). The
7356 DEBUG_SAFESTACK is now handled in terms of function casts,
7357 this has the advantage of retaining type safety without the
7358 use of additional functions. If DEBUG_SAFESTACK is not defined
7359 then the non typesafe macros are used instead. Also modified the
7360 mkstack.pl script to handle the new form. Needs testing to see
7361 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
7362 the default if no major problems. Similar behaviour for ASN1_SET_OF
7363 and PKCS12_STACK_OF.
7366 *) When some versions of IIS use the 'NET' form of private key the
7367 key derivation algorithm is different. Normally MD5(password) is
7368 used as a 128 bit RC4 key. In the modified case
7369 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
7370 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
7371 as the old Netscape_RSA functions except they have an additional
7372 'sgckey' parameter which uses the modified algorithm. Also added
7373 an -sgckey command line option to the rsa utility. Thanks to
7374 Adrian Peck <bertie@ncipher.com> for posting details of the modified
7375 algorithm to openssl-dev.
7378 *) The evp_local.h macros were using 'c.##kname' which resulted in
7379 invalid expansion on some systems (SCO 5.0.5 for example).
7380 Corrected to 'c.kname'.
7381 [Phillip Porch <root@theporch.com>]
7383 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
7384 a STACK of email addresses from a certificate or request, these look
7385 in the subject name and the subject alternative name extensions and
7386 omit any duplicate addresses.
7389 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
7390 This makes DSA verification about 2 % faster.
7393 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
7394 (meaning that now 2^5 values will be precomputed, which is only 4 KB
7395 plus overhead for 1024 bit moduli).
7396 This makes exponentiations about 0.5 % faster for 1024 bit
7397 exponents (as measured by "openssl speed rsa2048").
7400 *) Rename memory handling macros to avoid conflicts with other
7402 Malloc => OPENSSL_malloc
7403 Malloc_locked => OPENSSL_malloc_locked
7404 Realloc => OPENSSL_realloc
7405 Free => OPENSSL_free
7408 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
7409 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
7412 *) CygWin32 support.
7413 [John Jarvie <jjarvie@newsguy.com>]
7415 *) The type-safe stack code has been rejigged. It is now only compiled
7416 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
7417 by default all type-specific stack functions are "#define"d back to
7418 standard stack functions. This results in more streamlined output
7419 but retains the type-safety checking possibilities of the original
7423 *) The STACK code has been cleaned up, and certain type declarations
7424 that didn't make a lot of sense have been brought in line. This has
7425 also involved a cleanup of sorts in safestack.h to more correctly
7426 map type-safe stack functions onto their plain stack counterparts.
7427 This work has also resulted in a variety of "const"ifications of
7428 lots of the code, especially "_cmp" operations which should normally
7429 be prototyped with "const" parameters anyway.
7432 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
7433 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
7434 (The PRNG state consists of two parts, the large pool 'state' and 'md',
7435 where all of 'md' is used each time the PRNG is used, but 'state'
7436 is used only indexed by a cyclic counter. As entropy may not be
7437 well distributed from the beginning, 'md' is important as a
7438 chaining variable. However, the output function chains only half
7439 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
7440 all of 'md', and seeding with STATE_SIZE dummy bytes will result
7441 in all of 'state' being rewritten, with the new values depending
7442 on virtually all of 'md'. This overcomes the 80 bit limitation.)
7445 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
7446 the handshake is continued after ssl_verify_cert_chain();
7447 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
7448 can lead to 'unexplainable' connection aborts later.
7449 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
7451 *) Major EVP API cipher revision.
7452 Add hooks for extra EVP features. This allows various cipher
7453 parameters to be set in the EVP interface. Support added for variable
7454 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
7455 setting of RC2 and RC5 parameters.
7457 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
7460 Remove lots of duplicated code from the EVP library. For example *every*
7461 cipher init() function handles the 'iv' in the same way according to the
7462 cipher mode. They also all do nothing if the 'key' parameter is NULL and
7463 for CFB and OFB modes they zero ctx->num.
7465 New functionality allows removal of S/MIME code RC2 hack.
7467 Most of the routines have the same form and so can be declared in terms
7470 By shifting this to the top level EVP_CipherInit() it can be removed from
7471 all individual ciphers. If the cipher wants to handle IVs or keys
7472 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
7475 Change lots of functions like EVP_EncryptUpdate() to now return a
7476 value: although software versions of the algorithms cannot fail
7477 any installed hardware versions can.
7480 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
7481 this option is set, tolerate broken clients that send the negotiated
7482 protocol version number instead of the requested protocol version
7486 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
7487 i.e. non-zero for export ciphersuites, zero otherwise.
7488 Previous versions had this flag inverted, inconsistent with
7489 rsa_tmp_cb (..._TMP_RSA_CB).
7490 [Bodo Moeller; problem reported by Amit Chopra]
7492 *) Add missing DSA library text string. Work around for some IIS
7493 key files with invalid SEQUENCE encoding.
7496 *) Add a document (doc/standards.txt) that list all kinds of standards
7497 and so on that are implemented in OpenSSL.
7500 *) Enhance c_rehash script. Old version would mishandle certificates
7501 with the same subject name hash and wouldn't handle CRLs at all.
7502 Added -fingerprint option to crl utility, to support new c_rehash
7506 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
7509 *) Fix for SSL server purpose checking. Server checking was
7510 rejecting certificates which had extended key usage present
7511 but no ssl client purpose.
7512 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
7514 *) Make PKCS#12 code work with no password. The PKCS#12 spec
7515 is a little unclear about how a blank password is handled.
7516 Since the password in encoded as a BMPString with terminating
7517 double NULL a zero length password would end up as just the
7518 double NULL. However no password at all is different and is
7519 handled differently in the PKCS#12 key generation code. NS
7520 treats a blank password as zero length. MSIE treats it as no
7521 password on export: but it will try both on import. We now do
7522 the same: PKCS12_parse() tries zero length and no password if
7523 the password is set to "" or NULL (NULL is now a valid password:
7524 it wasn't before) as does the pkcs12 application.
7527 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
7528 perror when PEM_read_bio_X509_REQ fails, the error message must
7529 be obtained from the error queue.
7532 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
7533 it in ERR_remove_state if appropriate, and change ERR_get_state
7534 accordingly to avoid race conditions (this is necessary because
7535 thread_hash is no longer constant once set).
7538 *) Bugfix for linux-elf makefile.one.
7541 *) RSA_get_default_method() will now cause a default
7542 RSA_METHOD to be chosen if one doesn't exist already.
7543 Previously this was only set during a call to RSA_new()
7544 or RSA_new_method(NULL) meaning it was possible for
7545 RSA_get_default_method() to return NULL.
7548 *) Added native name translation to the existing DSO code
7549 that will convert (if the flag to do so is set) filenames
7550 that are sufficiently small and have no path information
7551 into a canonical native form. Eg. "blah" converted to
7552 "libblah.so" or "blah.dll" etc.
7555 *) New function ERR_error_string_n(e, buf, len) which is like
7556 ERR_error_string(e, buf), but writes at most 'len' bytes
7557 including the 0 terminator. For ERR_error_string_n, 'buf'
7559 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
7561 *) CONF library reworked to become more general. A new CONF
7562 configuration file reader "class" is implemented as well as a
7563 new functions (NCONF_*, for "New CONF") to handle it. The now
7564 old CONF_* functions are still there, but are reimplemented to
7565 work in terms of the new functions. Also, a set of functions
7566 to handle the internal storage of the configuration data is
7567 provided to make it easier to write new configuration file
7568 reader "classes" (I can definitely see something reading a
7569 configuration file in XML format, for example), called _CONF_*,
7570 or "the configuration storage API"...
7572 The new configuration file reading functions are:
7574 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
7575 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
7577 NCONF_default, NCONF_WIN32
7579 NCONF_dump_fp, NCONF_dump_bio
7581 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
7582 NCONF_new creates a new CONF object. This works in the same way
7583 as other interfaces in OpenSSL, like the BIO interface.
7584 NCONF_dump_* dump the internal storage of the configuration file,
7585 which is useful for debugging. All other functions take the same
7586 arguments as the old CONF_* functions wth the exception of the
7587 first that must be a `CONF *' instead of a `LHASH *'.
7589 To make it easer to use the new classes with the old CONF_* functions,
7590 the function CONF_set_default_method is provided.
7593 *) Add '-tls1' option to 'openssl ciphers', which was already
7594 mentioned in the documentation but had not been implemented.
7595 (This option is not yet really useful because even the additional
7596 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
7599 *) Initial DSO code added into libcrypto for letting OpenSSL (and
7600 OpenSSL-based applications) load shared libraries and bind to
7601 them in a portable way.
7602 [Geoff Thorpe, with contributions from Richard Levitte]
7604 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
7606 *) Make sure _lrotl and _lrotr are only used with MSVC.
7608 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
7609 (the default implementation of RAND_status).
7611 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
7612 to '-clrext' (= clear extensions), as intended and documented.
7613 [Bodo Moeller; inconsistency pointed out by Michael Attili
7616 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
7617 was larger than the MD block size.
7618 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
7620 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
7621 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
7622 using the passed key: if the passed key was a private key the result
7623 of X509_print(), for example, would be to print out all the private key
7627 *) des_quad_cksum() byte order bug fix.
7628 [Ulf Möller, using the problem description in krb4-0.9.7, where
7629 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
7631 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
7633 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
7635 *) For easily testing in shell scripts whether some command
7636 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
7637 returns with exit code 0 iff no command of the given name is available.
7638 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
7639 the output goes to stdout and nothing is printed to stderr.
7640 Additional arguments are always ignored.
7642 Since for each cipher there is a command of the same name,
7643 the 'no-cipher' compilation switches can be tested this way.
7645 ('openssl no-XXX' is not able to detect pseudo-commands such
7646 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
7649 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
7652 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
7653 is set; it will be thrown away anyway because each handshake creates
7655 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
7656 to parameters -- in previous versions (since OpenSSL 0.9.3) the
7657 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
7658 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
7661 *) New s_client option -ign_eof: EOF at stdin is ignored, and
7662 'Q' and 'R' lose their special meanings (quit/renegotiate).
7663 This is part of what -quiet does; unlike -quiet, -ign_eof
7664 does not suppress any output.
7667 *) Add compatibility options to the purpose and trust code. The
7668 purpose X509_PURPOSE_ANY is "any purpose" which automatically
7669 accepts a certificate or CA, this was the previous behaviour,
7670 with all the associated security issues.
7672 X509_TRUST_COMPAT is the old trust behaviour: only and
7673 automatically trust self signed roots in certificate store. A
7674 new trust setting X509_TRUST_DEFAULT is used to specify that
7675 a purpose has no associated trust setting and it should instead
7676 use the value in the default purpose.
7679 *) Fix the PKCS#8 DSA private key code so it decodes keys again
7680 and fix a memory leak.
7683 *) In util/mkerr.pl (which implements 'make errors'), preserve
7684 reason strings from the previous version of the .c file, as
7685 the default to have only downcase letters (and digits) in
7686 automatically generated reasons codes is not always appropriate.
7689 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
7690 using strerror. Previously, ERR_reason_error_string() returned
7691 library names as reason strings for SYSerr; but SYSerr is a special
7692 case where small numbers are errno values, not library numbers.
7695 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7696 converts DSA parameters into DH parameters. (When creating parameters,
7697 DSA_generate_parameters is used.)
7700 *) Include 'length' (recommended exponent length) in C code generated
7701 by 'openssl dhparam -C'.
7704 *) The second argument to set_label in perlasm was already being used
7705 so couldn't be used as a "file scope" flag. Moved to third argument
7709 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7710 instead of RAND_bytes for encryption IVs and salts.
7713 *) Include RAND_status() into RAND_METHOD instead of implementing
7714 it only for md_rand.c Otherwise replacing the PRNG by calling
7715 RAND_set_rand_method would be impossible.
7718 *) Don't let DSA_generate_key() enter an infinite loop if the random
7719 number generation fails.
7722 *) New 'rand' application for creating pseudo-random output.
7725 *) Added configuration support for Linux/IA64
7726 [Rolf Haberrecker <rolf@suse.de>]
7728 *) Assembler module support for Mingw32.
7731 *) Shared library support for HPUX (in shlib/).
7732 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7734 *) Shared library support for Solaris gcc.
7735 [Lutz Behnke <behnke@trustcenter.de>]
7737 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7739 *) PKCS7_encrypt() was adding text MIME headers twice because they
7740 were added manually and by SMIME_crlf_copy().
7743 *) In bntest.c don't call BN_rand with zero bits argument.
7744 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7746 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7747 case was implemented. This caused BN_div_recp() to fail occasionally.
7750 *) Add an optional second argument to the set_label() in the perl
7751 assembly language builder. If this argument exists and is set
7752 to 1 it signals that the assembler should use a symbol whose
7753 scope is the entire file, not just the current function. This
7754 is needed with MASM which uses the format label:: for this scope.
7755 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7757 *) Change the ASN1 types so they are typedefs by default. Before
7758 almost all types were #define'd to ASN1_STRING which was causing
7759 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7763 *) Change names of new functions to the new get1/get0 naming
7764 convention: After 'get1', the caller owns a reference count
7765 and has to call ..._free; 'get0' returns a pointer to some
7766 data structure without incrementing reference counters.
7767 (Some of the existing 'get' functions increment a reference
7768 counter, some don't.)
7769 Similarly, 'set1' and 'add1' functions increase reference
7770 counters or duplicate objects.
7773 *) Allow for the possibility of temp RSA key generation failure:
7774 the code used to assume it always worked and crashed on failure.
7777 *) Fix potential buffer overrun problem in BIO_printf().
7778 [Ulf Möller, using public domain code by Patrick Powell; problem
7779 pointed out by David Sacerdote <das33@cornell.edu>]
7781 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7782 RAND_egd() and RAND_status(). In the command line application,
7783 the EGD socket can be specified like a seed file using RANDFILE
7787 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7788 Some CAs (e.g. Verisign) distribute certificates in this form.
7791 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7792 list to exclude them. This means that no special compilation option
7793 is needed to use anonymous DH: it just needs to be included in the
7797 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7798 EVP_MD_type. The old functionality is available in a new macro called
7799 EVP_MD_md(). Change code that uses it and update docs.
7802 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7803 where the 'void *' argument is replaced by a function pointer argument.
7804 Previously 'void *' was abused to point to functions, which works on
7805 many platforms, but is not correct. As these functions are usually
7806 called by macros defined in OpenSSL header files, most source code
7807 should work without changes.
7810 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7811 sections with information on -D... compiler switches used for
7812 compiling the library so that applications can see them. To enable
7813 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7814 must be defined. E.g.,
7815 #define OPENSSL_ALGORITHM_DEFINES
7816 #include <openssl/opensslconf.h>
7817 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7818 [Richard Levitte, Ulf and Bodo Möller]
7820 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7824 *) Change the 'other' type in certificate aux info to a STACK_OF
7825 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7826 the required ASN1 format: arbitrary types determined by an OID.
7829 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7830 argument to 'req'. This is not because the function is newer or
7831 better than others it just uses the work 'NEW' in the certificate
7832 request header lines. Some software needs this.
7835 *) Reorganise password command line arguments: now passwords can be
7836 obtained from various sources. Delete the PEM_cb function and make
7837 it the default behaviour: i.e. if the callback is NULL and the
7838 usrdata argument is not NULL interpret it as a null terminated pass
7839 phrase. If usrdata and the callback are NULL then the pass phrase
7840 is prompted for as usual.
7843 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7844 the support is automatically enabled. The resulting binaries will
7845 autodetect the card and use it if present.
7846 [Ben Laurie and Compaq Inc.]
7848 *) Work around for Netscape hang bug. This sends certificate request
7849 and server done in one record. Since this is perfectly legal in the
7850 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7851 the bugs/SSLv3 entry for more info.
7854 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7857 *) Add -rand argument to smime and pkcs12 applications and read/write
7861 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7864 *) Add command line password options to the remaining applications.
7867 *) Bug fix for BN_div_recp() for numerators with an even number of
7871 *) More tests in bntest.c, and changed test_bn output.
7874 *) ./config recognizes MacOS X now.
7877 *) Bug fix for BN_div() when the first words of num and divsor are
7878 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7881 *) Add support for various broken PKCS#8 formats, and command line
7882 options to produce them.
7885 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7886 get temporary BIGNUMs from a BN_CTX.
7889 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7893 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7894 include a #define from the old name to the new. The original intent
7895 was that statically linked binaries could for example just call
7896 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7897 link with digests. This never worked becayse SSLeay_add_all_digests()
7898 and SSLeay_add_all_ciphers() were in the same source file so calling
7899 one would link with the other. They are now in separate source files.
7902 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7905 *) Use a less unusual form of the Miller-Rabin primality test (it used
7906 a binary algorithm for exponentiation integrated into the Miller-Rabin
7907 loop, our standard modexp algorithms are faster).
7910 *) Support for the EBCDIC character set completed.
7911 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7913 *) Source code cleanups: use const where appropriate, eliminate casts,
7914 use void * instead of char * in lhash.
7917 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7918 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7919 this the server could overwrite ephemeral keys that the client
7923 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7924 using 50 iterations of the Rabin-Miller test.
7926 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7927 iterations of the Rabin-Miller test as required by the appendix
7928 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7929 As BN_is_prime_fasttest includes trial division, DSA parameter
7930 generation becomes much faster.
7932 This implies a change for the callback functions in DSA_is_prime
7933 and DSA_generate_parameters: The callback function is called once
7934 for each positive witness in the Rabin-Miller test, not just
7935 occasionally in the inner loop; and the parameters to the
7936 callback function now provide an iteration count for the outer
7937 loop rather than for the current invocation of the inner loop.
7938 DSA_generate_parameters additionally can call the callback
7939 function with an 'iteration count' of -1, meaning that a
7940 candidate has passed the trial division test (when q is generated
7941 from an application-provided seed, trial division is skipped).
7944 *) New function BN_is_prime_fasttest that optionally does trial
7945 division before starting the Rabin-Miller test and has
7946 an additional BN_CTX * argument (whereas BN_is_prime always
7947 has to allocate at least one BN_CTX).
7948 'callback(1, -1, cb_arg)' is called when a number has passed the
7949 trial division stage.
7952 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7956 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7959 *) New function BN_pseudo_rand().
7962 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7963 bignum version of BN_from_montgomery() with the working code from
7964 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7968 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7969 made it impossible to use the same SSL_SESSION data structure in
7970 SSL2 clients in multiple threads.
7973 *) The return value of RAND_load_file() no longer counts bytes obtained
7974 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7975 to seed the PRNG (previously an explicit byte count was required).
7976 [Ulf Möller, Bodo Möller]
7978 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7979 used (char *) instead of (void *) and had casts all over the place.
7982 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7985 *) Retain source code compatibility for BN_prime_checks macro:
7986 BN_is_prime(..., BN_prime_checks, ...) now uses
7987 BN_prime_checks_for_size to determine the appropriate number of
7988 Rabin-Miller iterations.
7991 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7992 DH_CHECK_P_NOT_SAFE_PRIME.
7993 (Check if this is true? OpenPGP calls them "strong".)
7996 *) Merge the functionality of "dh" and "gendh" programs into a new program
7997 "dhparam". The old programs are retained for now but will handle DH keys
7998 (instead of parameters) in future.
8001 *) Make the ciphers, s_server and s_client programs check the return values
8002 when a new cipher list is set.
8005 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
8006 ciphers. Before when the 56bit ciphers were enabled the sorting was
8009 The syntax for the cipher sorting has been extended to support sorting by
8010 cipher-strength (using the strength_bits hard coded in the tables).
8011 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
8013 Fix a bug in the cipher-command parser: when supplying a cipher command
8014 string with an "undefined" symbol (neither command nor alphanumeric
8015 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
8016 an error is flagged.
8018 Due to the strength-sorting extension, the code of the
8019 ssl_create_cipher_list() function was completely rearranged. I hope that
8020 the readability was also increased :-)
8021 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
8023 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
8024 for the first serial number and places 2 in the serial number file. This
8025 avoids problems when the root CA is created with serial number zero and
8026 the first user certificate has the same issuer name and serial number
8030 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
8031 the new code. Add documentation for this stuff.
8034 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
8035 X509_*() to X509at_*() on the grounds that they don't handle X509
8036 structures and behave in an analagous way to the X509v3 functions:
8037 they shouldn't be called directly but wrapper functions should be used
8040 So we also now have some wrapper functions that call the X509at functions
8041 when passed certificate requests. (TO DO: similar things can be done with
8042 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
8043 things. Some of these need some d2i or i2d and print functionality
8044 because they handle more complex structures.)
8047 *) Add missing #ifndefs that caused missing symbols when building libssl
8048 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
8049 NO_RSA in ssl/s2*.c.
8050 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
8052 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
8053 has a return value which indicates the quality of the random data
8054 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
8055 error queue. New function RAND_pseudo_bytes() generates output that is
8056 guaranteed to be unique but not unpredictable. RAND_add is like
8057 RAND_seed, but takes an extra argument for an entropy estimate
8058 (RAND_seed always assumes full entropy).
8061 *) Do more iterations of Rabin-Miller probable prime test (specifically,
8062 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
8063 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
8064 in crypto/bn/bn_prime.c for the complete table). This guarantees a
8065 false-positive rate of at most 2^-80 for random input.
8068 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
8071 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
8072 in the 0.9.5 release), this returns the chain
8073 from an X509_CTX structure with a dup of the stack and all
8074 the X509 reference counts upped: so the stack will exist
8075 after X509_CTX_cleanup() has been called. Modify pkcs12.c
8078 Also make SSL_SESSION_print() print out the verify return
8082 *) Add manpage for the pkcs12 command. Also change the default
8083 behaviour so MAC iteration counts are used unless the new
8084 -nomaciter option is used. This improves file security and
8085 only older versions of MSIE (4.0 for example) need it.
8088 *) Honor the no-xxx Configure options when creating .DEF files.
8091 *) Add PKCS#10 attributes to field table: challengePassword,
8092 unstructuredName and unstructuredAddress. These are taken from
8093 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
8094 international characters are used.
8096 More changes to X509_ATTRIBUTE code: allow the setting of types
8097 based on strings. Remove the 'loc' parameter when adding
8098 attributes because these will be a SET OF encoding which is sorted
8102 *) Initial changes to the 'req' utility to allow request generation
8103 automation. This will allow an application to just generate a template
8104 file containing all the field values and have req construct the
8107 Initial support for X509_ATTRIBUTE handling. Stacks of these are
8108 used all over the place including certificate requests and PKCS#7
8109 structures. They are currently handled manually where necessary with
8110 some primitive wrappers for PKCS#7. The new functions behave in a
8111 manner analogous to the X509 extension functions: they allow
8112 attributes to be looked up by NID and added.
8114 Later something similar to the X509V3 code would be desirable to
8115 automatically handle the encoding, decoding and printing of the
8116 more complex types. The string types like challengePassword can
8117 be handled by the string table functions.
8119 Also modified the multi byte string table handling. Now there is
8120 a 'global mask' which masks out certain types. The table itself
8121 can use the flag STABLE_NO_MASK to ignore the mask setting: this
8122 is useful when for example there is only one permissible type
8123 (as in countryName) and using the mask might result in no valid
8127 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
8128 SSL_get_peer_finished to allow applications to obtain the latest
8129 Finished messages sent to the peer or expected from the peer,
8130 respectively. (SSL_get_peer_finished is usually the Finished message
8131 actually received from the peer, otherwise the protocol will be aborted.)
8133 As the Finished message are message digests of the complete handshake
8134 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
8135 be used for external authentication procedures when the authentication
8136 provided by SSL/TLS is not desired or is not enough.
8139 *) Enhanced support for Alpha Linux is added. Now ./config checks if
8140 the host supports BWX extension and if Compaq C is present on the
8141 $PATH. Just exploiting of the BWX extension results in 20-30%
8142 performance kick for some algorithms, e.g. DES and RC4 to mention
8143 a couple. Compaq C in turn generates ~20% faster code for MD5 and
8147 *) Add support for MS "fast SGC". This is arguably a violation of the
8148 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
8149 weak crypto and after checking the certificate is SGC a second one
8150 with strong crypto. MS SGC stops the first handshake after receiving
8151 the server certificate message and sends a second client hello. Since
8152 a server will typically do all the time consuming operations before
8153 expecting any further messages from the client (server key exchange
8154 is the most expensive) there is little difference between the two.
8156 To get OpenSSL to support MS SGC we have to permit a second client
8157 hello message after we have sent server done. In addition we have to
8158 reset the MAC if we do get this second client hello.
8161 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
8162 if a DER encoded private key is RSA or DSA traditional format. Changed
8163 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
8164 format DER encoded private key. Newer code should use PKCS#8 format which
8165 has the key type encoded in the ASN1 structure. Added DER private key
8166 support to pkcs8 application.
8169 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
8170 ciphersuites has been selected (as required by the SSL 3/TLS 1
8171 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
8172 is set, we interpret this as a request to violate the specification
8173 (the worst that can happen is a handshake failure, and 'correct'
8174 behaviour would result in a handshake failure anyway).
8177 *) In SSL_CTX_add_session, take into account that there might be multiple
8178 SSL_SESSION structures with the same session ID (e.g. when two threads
8179 concurrently obtain them from an external cache).
8180 The internal cache can handle only one SSL_SESSION with a given ID,
8181 so if there's a conflict, we now throw out the old one to achieve
8185 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
8186 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
8187 some routines that use cipher OIDs: some ciphers do not have OIDs
8188 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
8192 *) Simplify the trust setting structure and code. Now we just have
8193 two sequences of OIDs for trusted and rejected settings. These will
8194 typically have values the same as the extended key usage extension
8195 and any application specific purposes.
8197 The trust checking code now has a default behaviour: it will just
8198 check for an object with the same NID as the passed id. Functions can
8199 be provided to override either the default behaviour or the behaviour
8200 for a given id. SSL client, server and email already have functions
8201 in place for compatibility: they check the NID and also return "trusted"
8202 if the certificate is self signed.
8205 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
8206 traditional format into an EVP_PKEY structure.
8209 *) Add a password callback function PEM_cb() which either prompts for
8210 a password if usr_data is NULL or otherwise assumes it is a null
8211 terminated password. Allow passwords to be passed on command line
8212 environment or config files in a few more utilities.
8215 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
8216 keys. Add some short names for PKCS#8 PBE algorithms and allow them
8217 to be specified on the command line for the pkcs8 and pkcs12 utilities.
8218 Update documentation.
8221 *) Support for ASN1 "NULL" type. This could be handled before by using
8222 ASN1_TYPE but there wasn't any function that would try to read a NULL
8223 and produce an error if it couldn't. For compatibility we also have
8224 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
8225 don't allocate anything because they don't need to.
8228 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
8230 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
8232 *) Rebuild of the memory allocation routines used by OpenSSL code and
8233 possibly others as well. The purpose is to make an interface that
8234 provide hooks so anyone can build a separate set of allocation and
8235 deallocation routines to be used by OpenSSL, for example memory
8236 pool implementations, or something else, which was previously hard
8237 since Malloc(), Realloc() and Free() were defined as macros having
8238 the values malloc, realloc and free, respectively (except for Win32
8239 compilations). The same is provided for memory debugging code.
8240 OpenSSL already comes with functionality to find memory leaks, but
8241 this gives people a chance to debug other memory problems.
8243 With these changes, a new set of functions and macros have appeared:
8245 CRYPTO_set_mem_debug_functions() [F]
8246 CRYPTO_get_mem_debug_functions() [F]
8247 CRYPTO_dbg_set_options() [F]
8248 CRYPTO_dbg_get_options() [F]
8249 CRYPTO_malloc_debug_init() [M]
8251 The memory debug functions are NULL by default, unless the library
8252 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
8253 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
8254 gives the standard debugging functions that come with OpenSSL) or
8255 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
8256 provided by the library user) must be used. When the standard
8257 debugging functions are used, CRYPTO_dbg_set_options can be used to
8258 request additional information:
8259 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
8260 the CRYPTO_MDEBUG_xxx macro when compiling the library.
8262 Also, things like CRYPTO_set_mem_functions will always give the
8263 expected result (the new set of functions is used for allocation
8264 and deallocation) at all times, regardless of platform and compiler
8267 To finish it up, some functions that were never use in any other
8268 way than through macros have a new API and new semantic:
8271 CRYPTO_dbg_realloc()
8274 All macros of value have retained their old syntax.
8275 [Richard Levitte and Bodo Moeller]
8277 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
8278 ordering of SMIMECapabilities wasn't in "strength order" and there
8279 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
8283 *) Some ASN1 types with illegal zero length encoding (INTEGER,
8284 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
8285 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
8287 *) Merge in my S/MIME library for OpenSSL. This provides a simple
8288 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
8289 functionality to handle multipart/signed properly) and a utility
8290 called 'smime' to call all this stuff. This is based on code I
8291 originally wrote for Celo who have kindly allowed it to be
8292 included in OpenSSL.
8295 *) Add variants des_set_key_checked and des_set_key_unchecked of
8296 des_set_key (aka des_key_sched). Global variable des_check_key
8297 decides which of these is called by des_set_key; this way
8298 des_check_key behaves as it always did, but applications and
8299 the library itself, which was buggy for des_check_key == 1,
8300 have a cleaner way to pick the version they need.
8303 *) New function PKCS12_newpass() which changes the password of a
8307 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
8308 dynamic mix. In both cases the ids can be used as an index into the
8309 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
8310 functions so they accept a list of the field values and the
8311 application doesn't need to directly manipulate the X509_TRUST
8315 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
8319 *) Modify the way the V3 extension code looks up extensions. This now
8320 works in a similar way to the object code: we have some "standard"
8321 extensions in a static table which is searched with OBJ_bsearch()
8322 and the application can add dynamic ones if needed. The file
8323 crypto/x509v3/ext_dat.h now has the info: this file needs to be
8324 updated whenever a new extension is added to the core code and kept
8325 in ext_nid order. There is a simple program 'tabtest.c' which checks
8326 this. New extensions are not added too often so this file can readily
8327 be maintained manually.
8329 There are two big advantages in doing things this way. The extensions
8330 can be looked up immediately and no longer need to be "added" using
8331 X509V3_add_standard_extensions(): this function now does nothing.
8332 [Side note: I get *lots* of email saying the extension code doesn't
8333 work because people forget to call this function]
8334 Also no dynamic allocation is done unless new extensions are added:
8335 so if we don't add custom extensions there is no need to call
8336 X509V3_EXT_cleanup().
8339 *) Modify enc utility's salting as follows: make salting the default. Add a
8340 magic header, so unsalted files fail gracefully instead of just decrypting
8341 to garbage. This is because not salting is a big security hole, so people
8342 should be discouraged from doing it.
8345 *) Fixes and enhancements to the 'x509' utility. It allowed a message
8346 digest to be passed on the command line but it only used this
8347 parameter when signing a certificate. Modified so all relevant
8348 operations are affected by the digest parameter including the
8349 -fingerprint and -x509toreq options. Also -x509toreq choked if a
8350 DSA key was used because it didn't fix the digest.
8353 *) Initial certificate chain verify code. Currently tests the untrusted
8354 certificates for consistency with the verify purpose (which is set
8355 when the X509_STORE_CTX structure is set up) and checks the pathlength.
8357 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
8358 this is because it will reject chains with invalid extensions whereas
8359 every previous version of OpenSSL and SSLeay made no checks at all.
8361 Trust code: checks the root CA for the relevant trust settings. Trust
8362 settings have an initial value consistent with the verify purpose: e.g.
8363 if the verify purpose is for SSL client use it expects the CA to be
8364 trusted for SSL client use. However the default value can be changed to
8365 permit custom trust settings: one example of this would be to only trust
8366 certificates from a specific "secure" set of CAs.
8368 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
8369 which should be used for version portability: especially since the
8370 verify structure is likely to change more often now.
8372 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
8373 to set them. If not set then assume SSL clients will verify SSL servers
8376 Two new options to the verify program: -untrusted allows a set of
8377 untrusted certificates to be passed in and -purpose which sets the
8378 intended purpose of the certificate. If a purpose is set then the
8379 new chain verify code is used to check extension consistency.
8382 *) Support for the authority information access extension.
8385 *) Modify RSA and DSA PEM read routines to transparently handle
8386 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
8387 public keys in a format compatible with certificate
8388 SubjectPublicKeyInfo structures. Unfortunately there were already
8389 functions called *_PublicKey_* which used various odd formats so
8390 these are retained for compatibility: however the DSA variants were
8391 never in a public release so they have been deleted. Changed dsa/rsa
8392 utilities to handle the new format: note no releases ever handled public
8393 keys so we should be OK.
8395 The primary motivation for this change is to avoid the same fiasco
8396 that dogs private keys: there are several incompatible private key
8397 formats some of which are standard and some OpenSSL specific and
8398 require various evil hacks to allow partial transparent handling and
8399 even then it doesn't work with DER formats. Given the option anything
8400 other than PKCS#8 should be dumped: but the other formats have to
8401 stay in the name of compatibility.
8403 With public keys and the benefit of hindsight one standard format
8404 is used which works with EVP_PKEY, RSA or DSA structures: though
8405 it clearly returns an error if you try to read the wrong kind of key.
8407 Added a -pubkey option to the 'x509' utility to output the public key.
8408 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
8409 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
8410 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
8411 that do the same as the EVP_PKEY_assign_*() except they up the
8412 reference count of the added key (they don't "swallow" the
8416 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
8417 CRLs would fail if the file contained no certificates or no CRLs:
8418 added a new function to read in both types and return the number
8419 read: this means that if none are read it will be an error. The
8420 DER versions of the certificate and CRL reader would always fail
8421 because it isn't possible to mix certificates and CRLs in DER format
8422 without choking one or the other routine. Changed this to just read
8423 a certificate: this is the best we can do. Also modified the code
8424 in apps/verify.c to take notice of return codes: it was previously
8425 attempting to read in certificates from NULL pointers and ignoring
8426 any errors: this is one reason why the cert and CRL reader seemed
8427 to work. It doesn't check return codes from the default certificate
8428 routines: these may well fail if the certificates aren't installed.
8431 *) Code to support otherName option in GeneralName.
8434 *) First update to verify code. Change the verify utility
8435 so it warns if it is passed a self signed certificate:
8436 for consistency with the normal behaviour. X509_verify
8437 has been modified to it will now verify a self signed
8438 certificate if *exactly* the same certificate appears
8439 in the store: it was previously impossible to trust a
8440 single self signed certificate. This means that:
8441 openssl verify ss.pem
8442 now gives a warning about a self signed certificate but
8443 openssl verify -CAfile ss.pem ss.pem
8447 *) For servers, store verify_result in SSL_SESSION data structure
8448 (and add it to external session representation).
8449 This is needed when client certificate verifications fails,
8450 but an application-provided verification callback (set by
8451 SSL_CTX_set_cert_verify_callback) allows accepting the session
8452 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
8453 but returns 1): When the session is reused, we have to set
8454 ssl->verify_result to the appropriate error code to avoid
8456 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
8458 *) Fix a bug in the new PKCS#7 code: it didn't consider the
8459 case in PKCS7_dataInit() where the signed PKCS7 structure
8460 didn't contain any existing data because it was being created.
8461 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
8463 *) Add a salt to the key derivation routines in enc.c. This
8464 forms the first 8 bytes of the encrypted file. Also add a
8465 -S option to allow a salt to be input on the command line.
8468 *) New function X509_cmp(). Oddly enough there wasn't a function
8469 to compare two certificates. We do this by working out the SHA1
8470 hash and comparing that. X509_cmp() will be needed by the trust
8474 *) SSL_get1_session() is like SSL_get_session(), but increments
8475 the reference count in the SSL_SESSION returned.
8476 [Geoff Thorpe <geoff@eu.c2.net>]
8478 *) Fix for 'req': it was adding a null to request attributes.
8479 Also change the X509_LOOKUP and X509_INFO code to handle
8480 certificate auxiliary information.
8483 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
8487 *) Add the possibility to add extra information to the memory leak
8488 detecting output, to form tracebacks, showing from where each
8489 allocation was originated: CRYPTO_push_info("constant string") adds
8490 the string plus current file name and line number to a per-thread
8491 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
8492 is like calling CYRPTO_pop_info() until the stack is empty.
8493 Also updated memory leak detection code to be multi-thread-safe.
8496 *) Add options -text and -noout to pkcs7 utility and delete the
8497 encryption options which never did anything. Update docs.
8500 *) Add options to some of the utilities to allow the pass phrase
8501 to be included on either the command line (not recommended on
8502 OSes like Unix) or read from the environment. Update the
8503 manpages and fix a few bugs.
8506 *) Add a few manpages for some of the openssl commands.
8509 *) Fix the -revoke option in ca. It was freeing up memory twice,
8510 leaking and not finding already revoked certificates.
8513 *) Extensive changes to support certificate auxiliary information.
8514 This involves the use of X509_CERT_AUX structure and X509_AUX
8515 functions. An X509_AUX function such as PEM_read_X509_AUX()
8516 can still read in a certificate file in the usual way but it
8517 will also read in any additional "auxiliary information". By
8518 doing things this way a fair degree of compatibility can be
8519 retained: existing certificates can have this information added
8520 using the new 'x509' options.
8522 Current auxiliary information includes an "alias" and some trust
8523 settings. The trust settings will ultimately be used in enhanced
8524 certificate chain verification routines: currently a certificate
8525 can only be trusted if it is self signed and then it is trusted
8529 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
8530 The problem was that one of the replacement routines had not been working
8531 since SSLeay releases. For now the offending routine has been replaced
8532 with non-optimised assembler. Even so, this now gives around 95%
8533 performance improvement for 1024 bit RSA signs.
8536 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
8537 handling. Most clients have the effective key size in bits equal to
8538 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
8539 A few however don't do this and instead use the size of the decrypted key
8540 to determine the RC2 key length and the AlgorithmIdentifier to determine
8541 the effective key length. In this case the effective key length can still
8542 be 40 bits but the key length can be 168 bits for example. This is fixed
8543 by manually forcing an RC2 key into the EVP_PKEY structure because the
8544 EVP code can't currently handle unusual RC2 key sizes: it always assumes
8545 the key length and effective key length are equal.
8548 *) Add a bunch of functions that should simplify the creation of
8549 X509_NAME structures. Now you should be able to do:
8550 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
8551 and have it automatically work out the correct field type and fill in
8552 the structures. The more adventurous can try:
8553 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
8554 and it will (hopefully) work out the correct multibyte encoding.
8557 *) Change the 'req' utility to use the new field handling and multibyte
8558 copy routines. Before the DN field creation was handled in an ad hoc
8559 way in req, ca, and x509 which was rather broken and didn't support
8560 BMPStrings or UTF8Strings. Since some software doesn't implement
8561 BMPStrings or UTF8Strings yet, they can be enabled using the config file
8562 using the dirstring_type option. See the new comment in the default
8563 openssl.cnf for more info.
8566 *) Make crypto/rand/md_rand.c more robust:
8567 - Assure unique random numbers after fork().
8568 - Make sure that concurrent threads access the global counter and
8569 md serializably so that we never lose entropy in them
8570 or use exactly the same state in multiple threads.
8571 Access to the large state is not always serializable because
8572 the additional locking could be a performance killer, and
8573 md should be large enough anyway.
8576 *) New file apps/app_rand.c with commonly needed functionality
8577 for handling the random seed file.
8579 Use the random seed file in some applications that previously did not:
8581 dsaparam -genkey (which also ignored its '-rand' option),
8584 x509 (when signing).
8585 Except on systems with /dev/urandom, it is crucial to have a random
8586 seed file at least for key creation, DSA signing, and for DH exchanges;
8587 for RSA signatures we could do without one.
8589 gendh and gendsa (unlike genrsa) used to read only the first byte
8590 of each file listed in the '-rand' option. The function as previously
8591 found in genrsa is now in app_rand.c and is used by all programs
8592 that support '-rand'.
8595 *) In RAND_write_file, use mode 0600 for creating files;
8596 don't just chmod when it may be too late.
8599 *) Report an error from X509_STORE_load_locations
8600 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
8603 *) New function ASN1_mbstring_copy() this copies a string in either
8604 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
8605 into an ASN1_STRING type. A mask of permissible types is passed
8606 and it chooses the "minimal" type to use or an error if not type
8610 *) Add function equivalents to the various macros in asn1.h. The old
8611 macros are retained with an M_ prefix. Code inside the library can
8612 use the M_ macros. External code (including the openssl utility)
8613 should *NOT* in order to be "shared library friendly".
8616 *) Add various functions that can check a certificate's extensions
8617 to see if it usable for various purposes such as SSL client,
8618 server or S/MIME and CAs of these types. This is currently
8619 VERY EXPERIMENTAL but will ultimately be used for certificate chain
8620 verification. Also added a -purpose flag to x509 utility to
8621 print out all the purposes.
8624 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
8628 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
8629 for, obtain and decode and extension and obtain its critical flag.
8630 This allows all the necessary extension code to be handled in a
8631 single function call.
8634 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
8635 platforms. See crypto/rc4/rc4_enc.c for further details.
8638 *) New -noout option to asn1parse. This causes no output to be produced
8639 its main use is when combined with -strparse and -out to extract data
8640 from a file (which may not be in ASN.1 format).
8643 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
8644 when producing the local key id.
8645 [Richard Levitte <levitte@stacken.kth.se>]
8647 *) New option -dhparam in s_server. This allows a DH parameter file to be
8648 stated explicitly. If it is not stated then it tries the first server
8649 certificate file. The previous behaviour hard coded the filename
8653 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
8654 a public key to be input or output. For example:
8655 openssl rsa -in key.pem -pubout -out pubkey.pem
8656 Also added necessary DSA public key functions to handle this.
8659 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
8660 in the message. This was handled by allowing
8661 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
8662 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
8664 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
8665 to the end of the strings whereas this didn't. This would cause problems
8666 if strings read with d2i_ASN1_bytes() were later modified.
8667 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
8669 *) Fix for base64 decode bug. When a base64 bio reads only one line of
8670 data and it contains EOF it will end up returning an error. This is
8671 caused by input 46 bytes long. The cause is due to the way base64
8672 BIOs find the start of base64 encoded data. They do this by trying a
8673 trial decode on each line until they find one that works. When they
8674 do a flag is set and it starts again knowing it can pass all the
8675 data directly through the decoder. Unfortunately it doesn't reset
8676 the context it uses. This means that if EOF is reached an attempt
8677 is made to pass two EOFs through the context and this causes the
8678 resulting error. This can also cause other problems as well. As is
8679 usual with these problems it takes *ages* to find and the fix is
8680 trivial: move one line.
8681 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
8683 *) Ugly workaround to get s_client and s_server working under Windows. The
8684 old code wouldn't work because it needed to select() on sockets and the
8685 tty (for keypresses and to see if data could be written). Win32 only
8686 supports select() on sockets so we select() with a 1s timeout on the
8687 sockets and then see if any characters are waiting to be read, if none
8688 are present then we retry, we also assume we can always write data to
8689 the tty. This isn't nice because the code then blocks until we've
8690 received a complete line of data and it is effectively polling the
8691 keyboard at 1s intervals: however it's quite a bit better than not
8692 working at all :-) A dedicated Windows application might handle this
8693 with an event loop for example.
8696 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8697 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8698 will be called when RSA_sign() and RSA_verify() are used. This is useful
8699 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8700 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8701 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8702 This necessitated the support of an extra signature type NID_md5_sha1
8703 for SSL signatures and modifications to the SSL library to use it instead
8704 of calling RSA_public_decrypt() and RSA_private_encrypt().
8707 *) Add new -verify -CAfile and -CApath options to the crl program, these
8708 will lookup a CRL issuers certificate and verify the signature in a
8709 similar way to the verify program. Tidy up the crl program so it
8710 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8711 less strict. It will now permit CRL extensions even if it is not
8712 a V2 CRL: this will allow it to tolerate some broken CRLs.
8715 *) Initialize all non-automatic variables each time one of the openssl
8716 sub-programs is started (this is necessary as they may be started
8717 multiple times from the "OpenSSL>" prompt).
8718 [Lennart Bang, Bodo Moeller]
8720 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8721 removing all other RSA functionality (this is what NO_RSA does). This
8722 is so (for example) those in the US can disable those operations covered
8723 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8727 *) Non-copying interface to BIO pairs.
8728 (still largely untested)
8731 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8732 ASCII string. This was handled independently in various places before.
8735 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8736 UTF8 strings a character at a time.
8739 *) Use client_version from client hello to select the protocol
8740 (s23_srvr.c) and for RSA client key exchange verification
8741 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8744 *) Add various utility functions to handle SPKACs, these were previously
8745 handled by poking round in the structure internals. Added new function
8746 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8747 print, verify and generate SPKACs. Based on an original idea from
8748 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8751 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8754 *) Allow the config file extension section to be overwritten on the
8755 command line. Based on an original idea from Massimiliano Pala
8756 <madwolf@comune.modena.it>. The new option is called -extensions
8757 and can be applied to ca, req and x509. Also -reqexts to override
8758 the request extensions in req and -crlexts to override the crl extensions
8762 *) Add new feature to the SPKAC handling in ca. Now you can include
8763 the same field multiple times by preceding it by "XXXX." for example:
8766 this is the same syntax as used in the req config file.
8769 *) Allow certificate extensions to be added to certificate requests. These
8770 are specified in a 'req_extensions' option of the req section of the
8771 config file. They can be printed out with the -text option to req but
8772 are otherwise ignored at present.
8775 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8776 data read consists of only the final block it would not decrypted because
8777 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8778 A misplaced 'break' also meant the decrypted final block might not be
8779 copied until the next read.
8782 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8783 a few extra parameters to the DH structure: these will be useful if
8784 for example we want the value of 'q' or implement X9.42 DH.
8787 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8788 provides hooks that allow the default DSA functions or functions on a
8789 "per key" basis to be replaced. This allows hardware acceleration and
8790 hardware key storage to be handled without major modification to the
8791 library. Also added low level modexp hooks and CRYPTO_EX structure and
8792 associated functions.
8795 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8796 as "read only": it can't be written to and the buffer it points to will
8797 not be freed. Reading from a read only BIO is much more efficient than
8798 a normal memory BIO. This was added because there are several times when
8799 an area of memory needs to be read from a BIO. The previous method was
8800 to create a memory BIO and write the data to it, this results in two
8801 copies of the data and an O(n^2) reading algorithm. There is a new
8802 function BIO_new_mem_buf() which creates a read only memory BIO from
8803 an area of memory. Also modified the PKCS#7 routines to use read only
8807 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8808 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8809 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8810 but a retry condition occured while trying to read the rest.
8813 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8814 NID_pkcs7_encrypted by default: this was wrong since this should almost
8815 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8816 the encrypted data type: this is a more sensible place to put it and it
8817 allows the PKCS#12 code to be tidied up that duplicated this
8821 *) Changed obj_dat.pl script so it takes its input and output files on
8822 the command line. This should avoid shell escape redirection problems
8826 *) Initial support for certificate extension requests, these are included
8827 in things like Xenroll certificate requests. Included functions to allow
8828 extensions to be obtained and added.
8831 *) -crlf option to s_client and s_server for sending newlines as
8832 CRLF (as required by many protocols).
8835 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8837 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8838 [Ralf S. Engelschall]
8840 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8841 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8843 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8847 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8848 DH parameters/keys (q is lost during that conversion, but the resulting
8849 DH parameters contain its length).
8851 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8852 much faster than DH_generate_parameters (which creates parameters
8853 where p = 2*q + 1), and also the smaller q makes DH computations
8854 much more efficient (160-bit exponentiation instead of 1024-bit
8855 exponentiation); so this provides a convenient way to support DHE
8856 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8857 utter importance to use
8858 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8860 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8861 when such DH parameters are used, because otherwise small subgroup
8862 attacks may become possible!
8865 *) Avoid memory leak in i2d_DHparams.
8868 *) Allow the -k option to be used more than once in the enc program:
8869 this allows the same encrypted message to be read by multiple recipients.
8872 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8873 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8874 it will always use the numerical form of the OID, even if it has a short
8878 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8879 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8880 otherwise bn_mod_exp was called. In the case of hardware keys for example
8881 no private key components need be present and it might store extra data
8882 in the RSA structure, which cannot be accessed from bn_mod_exp.
8883 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8884 private key operations.
8887 *) Added support for SPARC Linux.
8890 *) pem_password_cb function type incompatibly changed from
8891 typedef int pem_password_cb(char *buf, int size, int rwflag);
8893 ....(char *buf, int size, int rwflag, void *userdata);
8894 so that applications can pass data to their callbacks:
8895 The PEM[_ASN1]_{read,write}... functions and macros now take an
8896 additional void * argument, which is just handed through whenever
8897 the password callback is called.
8898 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8900 New function SSL_CTX_set_default_passwd_cb_userdata.
8902 Compatibility note: As many C implementations push function arguments
8903 onto the stack in reverse order, the new library version is likely to
8904 interoperate with programs that have been compiled with the old
8905 pem_password_cb definition (PEM_whatever takes some data that
8906 happens to be on the stack as its last argument, and the callback
8907 just ignores this garbage); but there is no guarantee whatsoever that
8910 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8911 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8912 problems not only on Windows, but also on some Unix platforms.
8913 To avoid problematic command lines, these definitions are now in an
8914 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8915 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8918 *) MIPS III/IV assembler module is reimplemented.
8921 *) More DES library cleanups: remove references to srand/rand and
8922 delete an unused file.
8925 *) Add support for the the free Netwide assembler (NASM) under Win32,
8926 since not many people have MASM (ml) and it can be hard to obtain.
8927 This is currently experimental but it seems to work OK and pass all
8928 the tests. Check out INSTALL.W32 for info.
8931 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8932 without temporary keys kept an extra copy of the server key,
8933 and connections with temporary keys did not free everything in case
8937 *) New function RSA_check_key and new openssl rsa option -check
8938 for verifying the consistency of RSA keys.
8939 [Ulf Moeller, Bodo Moeller]
8941 *) Various changes to make Win32 compile work:
8942 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8943 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8944 comparison" warnings.
8945 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8948 *) Add a debugging option to PKCS#5 v2 key generation function: when
8949 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8950 derived keys are printed to stderr.
8953 *) Copy the flags in ASN1_STRING_dup().
8954 [Roman E. Pavlov <pre@mo.msk.ru>]
8956 *) The x509 application mishandled signing requests containing DSA
8957 keys when the signing key was also DSA and the parameters didn't match.
8959 It was supposed to omit the parameters when they matched the signing key:
8960 the verifying software was then supposed to automatically use the CA's
8961 parameters if they were absent from the end user certificate.
8963 Omitting parameters is no longer recommended. The test was also
8964 the wrong way round! This was probably due to unusual behaviour in
8965 EVP_cmp_parameters() which returns 1 if the parameters match.
8966 This meant that parameters were omitted when they *didn't* match and
8967 the certificate was useless. Certificates signed with 'ca' didn't have
8969 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8971 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8972 The interface is as follows:
8973 Applications can use
8974 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8975 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8976 "off" is now the default.
8977 The library internally uses
8978 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8979 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8980 to disable memory-checking temporarily.
8982 Some inconsistent states that previously were possible (and were
8983 even the default) are now avoided.
8985 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8986 with each memory chunk allocated; this is occasionally more helpful
8987 than just having a counter.
8989 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8991 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8995 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8996 which largely parallels "options", but is for changing API behaviour,
8997 whereas "options" are about protocol behaviour.
8998 Initial "mode" flags are:
9000 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
9001 a single record has been written.
9002 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
9003 retries use the same buffer location.
9004 (But all of the contents must be
9008 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
9011 *) Fix problems with no-hmac etc.
9012 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
9014 *) New functions RSA_get_default_method(), RSA_set_method() and
9015 RSA_get_method(). These allows replacement of RSA_METHODs without having
9016 to mess around with the internals of an RSA structure.
9019 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
9020 Also really enable memory leak checks in openssl.c and in some
9022 [Chad C. Mulligan, Bodo Moeller]
9024 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
9025 up the length of negative integers. This has now been simplified to just
9026 store the length when it is first determined and use it later, rather
9027 than trying to keep track of where data is copied and updating it to
9029 [Steve Henson, reported by Brien Wheeler
9030 <bwheeler@authentica-security.com>]
9032 *) Add a new function PKCS7_signatureVerify. This allows the verification
9033 of a PKCS#7 signature but with the signing certificate passed to the
9034 function itself. This contrasts with PKCS7_dataVerify which assumes the
9035 certificate is present in the PKCS#7 structure. This isn't always the
9036 case: certificates can be omitted from a PKCS#7 structure and be
9037 distributed by "out of band" means (such as a certificate database).
9040 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
9041 function prototypes in pem.h, also change util/mkdef.pl to add the
9042 necessary function names.
9045 *) mk1mf.pl (used by Windows builds) did not properly read the
9046 options set by Configure in the top level Makefile, and Configure
9047 was not even able to write more than one option correctly.
9048 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
9051 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
9052 file to be loaded from a BIO or FILE pointer. The BIO version will
9053 for example allow memory BIOs to contain config info.
9056 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
9057 Whoever hopes to achieve shared-library compatibility across versions
9058 must use this, not the compile-time macro.
9059 (Exercise 0.9.4: Which is the minimum library version required by
9061 Note: All this applies only to multi-threaded programs, others don't
9065 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
9066 through a BIO pair triggered the default case, i.e.
9067 SSLerr(...,SSL_R_UNKNOWN_STATE).
9070 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
9071 can use the SSL library even if none of the specific BIOs is
9075 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
9076 for the encoded length.
9077 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
9079 *) Add initial documentation of the X509V3 functions.
9082 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
9083 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
9084 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
9085 secure PKCS#8 private key format with a high iteration count.
9088 *) Fix determination of Perl interpreter: A perl or perl5
9089 _directory_ in $PATH was also accepted as the interpreter.
9090 [Ralf S. Engelschall]
9092 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
9093 wrong with it but it was very old and did things like calling
9094 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
9098 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
9099 to use the new extension code.
9102 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
9103 with macros. This should make it easier to change their form, add extra
9104 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
9108 *) Add to configuration table a new entry that can specify an alternative
9109 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
9110 according to Mark Crispin <MRC@Panda.COM>.
9114 *) DES CBC did not update the IV. Weird.
9117 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
9118 Changing the behaviour of the former might break existing programs --
9119 where IV updating is needed, des_ncbc_encrypt can be used.
9122 *) When bntest is run from "make test" it drives bc to check its
9123 calculations, as well as internally checking them. If an internal check
9124 fails, it needs to cause bc to give a non-zero result or make test carries
9125 on without noticing the failure. Fixed.
9128 *) DES library cleanups.
9131 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
9132 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
9133 ciphers. NOTE: although the key derivation function has been verified
9134 against some published test vectors it has not been extensively tested
9135 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
9139 *) Instead of "mkdir -p", which is not fully portable, use new
9140 Perl script "util/mkdir-p.pl".
9143 *) Rewrite the way password based encryption (PBE) is handled. It used to
9144 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
9145 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
9146 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
9147 the 'parameter' field of the AlgorithmIdentifier is passed to the
9148 underlying key generation function so it must do its own ASN1 parsing.
9149 This has also changed the EVP_PBE_CipherInit() function which now has a
9150 'parameter' argument instead of literal salt and iteration count values
9151 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
9154 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
9155 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
9156 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
9157 KEY" because this clashed with PKCS#8 unencrypted string. Since this
9158 value was just used as a "magic string" and not used directly its
9159 value doesn't matter.
9162 *) Introduce some semblance of const correctness to BN. Shame C doesn't
9166 *) "linux-sparc64" configuration (ultrapenguin).
9167 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
9168 "linux-sparc" configuration.
9169 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
9171 *) config now generates no-xxx options for missing ciphers.
9174 *) Support the EBCDIC character set (work in progress).
9175 File ebcdic.c not yet included because it has a different license.
9176 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
9178 *) Support BS2000/OSD-POSIX.
9179 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
9181 *) Make callbacks for key generation use void * instead of char *.
9184 *) Make S/MIME samples compile (not yet tested).
9187 *) Additional typesafe stacks.
9190 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
9194 Changes between 0.9.3 and 0.9.3a [29 May 1999]
9196 *) New configuration variant "sco5-gcc".
9198 *) Updated some demos.
9199 [Sean O Riordain, Wade Scholine]
9201 *) Add missing BIO_free at exit of pkcs12 application.
9204 *) Fix memory leak in conf.c.
9207 *) Updates for Win32 to assembler version of MD5.
9210 *) Set #! path to perl in apps/der_chop to where we found it
9211 instead of using a fixed path.
9214 *) SHA library changes for irix64-mips4-cc.
9217 *) Improvements for VMS support.
9221 Changes between 0.9.2b and 0.9.3 [24 May 1999]
9223 *) Bignum library bug fix. IRIX 6 passes "make test" now!
9224 This also avoids the problems with SC4.2 and unpatched SC5.
9225 [Andy Polyakov <appro@fy.chalmers.se>]
9227 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
9228 These are required because of the typesafe stack would otherwise break
9229 existing code. If old code used a structure member which used to be STACK
9230 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
9231 sk_num or sk_value it would produce an error because the num, data members
9232 are not present in STACK_OF. Now it just produces a warning. sk_set
9233 replaces the old method of assigning a value to sk_value
9234 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
9235 that does this will no longer work (and should use sk_set instead) but
9236 this could be regarded as a "questionable" behaviour anyway.
9239 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
9240 correctly handle encrypted S/MIME data.
9243 *) Change type of various DES function arguments from des_cblock
9244 (which means, in function argument declarations, pointer to char)
9245 to des_cblock * (meaning pointer to array with 8 char elements),
9246 which allows the compiler to do more typechecking; it was like
9247 that back in SSLeay, but with lots of ugly casts.
9249 Introduce new type const_des_cblock.
9252 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
9253 problems: find RecipientInfo structure that matches recipient certificate
9254 and initialise the ASN1 structures properly based on passed cipher.
9257 *) Belatedly make the BN tests actually check the results.
9260 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
9261 to and from BNs: it was completely broken. New compilation option
9262 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
9263 key elements as negative integers.
9266 *) Reorganize and speed up MD5.
9267 [Andy Polyakov <appro@fy.chalmers.se>]
9270 [Richard Levitte <richard@levitte.org>]
9272 *) New option -out to asn1parse to allow the parsed structure to be
9273 output to a file. This is most useful when combined with the -strparse
9274 option to examine the output of things like OCTET STRINGS.
9277 *) Make SSL library a little more fool-proof by not requiring any longer
9278 that SSL_set_{accept,connect}_state be called before
9279 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
9280 in many applications because usually everything *appeared* to work as
9281 intended anyway -- now it really works as intended).
9284 *) Move openssl.cnf out of lib/.
9287 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
9288 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
9289 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
9290 [Ralf S. Engelschall]
9292 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
9293 handle PKCS#7 enveloped data properly.
9294 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
9296 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
9297 copying pointers. The cert_st handling is changed by this in
9298 various ways (and thus what used to be known as ctx->default_cert
9299 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
9300 any longer when s->cert does not give us what we need).
9301 ssl_cert_instantiate becomes obsolete by this change.
9302 As soon as we've got the new code right (possibly it already is?),
9303 we have solved a couple of bugs of the earlier code where s->cert
9304 was used as if it could not have been shared with other SSL structures.
9306 Note that using the SSL API in certain dirty ways now will result
9307 in different behaviour than observed with earlier library versions:
9308 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
9309 does not influence s as it used to.
9311 In order to clean up things more thoroughly, inside SSL_SESSION
9312 we don't use CERT any longer, but a new structure SESS_CERT
9313 that holds per-session data (if available); currently, this is
9314 the peer's certificate chain and, for clients, the server's certificate
9315 and temporary key. CERT holds only those values that can have
9316 meaningful defaults in an SSL_CTX.
9319 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
9320 from the internal representation. Various PKCS#7 fixes: remove some
9321 evil casts and set the enc_dig_alg field properly based on the signing
9325 *) Allow PKCS#12 password to be set from the command line or the
9326 environment. Let 'ca' get its config file name from the environment
9327 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
9331 *) Allow certificate policies extension to use an IA5STRING for the
9332 organization field. This is contrary to the PKIX definition but
9333 VeriSign uses it and IE5 only recognises this form. Document 'x509'
9337 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
9338 without disallowing inline assembler and the like for non-pedantic builds.
9341 *) Support Borland C++ builder.
9342 [Janez Jere <jj@void.si>, modified by Ulf Möller]
9347 *) SHA-1 cleanups and performance enhancements.
9348 [Andy Polyakov <appro@fy.chalmers.se>]
9350 *) Sparc v8plus assembler for the bignum library.
9351 [Andy Polyakov <appro@fy.chalmers.se>]
9353 *) Accept any -xxx and +xxx compiler options in Configure.
9356 *) Update HPUX configuration.
9359 *) Add missing sk_<type>_unshift() function to safestack.h
9360 [Ralf S. Engelschall]
9362 *) New function SSL_CTX_use_certificate_chain_file that sets the
9363 "extra_cert"s in addition to the certificate. (This makes sense
9364 only for "PEM" format files, as chains as a whole are not
9368 *) Support verify_depth from the SSL API.
9369 x509_vfy.c had what can be considered an off-by-one-error:
9370 Its depth (which was not part of the external interface)
9371 was actually counting the number of certificates in a chain;
9372 now it really counts the depth.
9375 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
9376 instead of X509err, which often resulted in confusing error
9377 messages since the error codes are not globally unique
9378 (e.g. an alleged error in ssl3_accept when a certificate
9379 didn't match the private key).
9381 *) New function SSL_CTX_set_session_id_context that allows to set a default
9382 value (so that you don't need SSL_set_session_id_context for each
9383 connection using the SSL_CTX).
9386 *) OAEP decoding bug fix.
9389 *) Support INSTALL_PREFIX for package builders, as proposed by
9393 *) New Configure options "threads" and "no-threads". For systems
9394 where the proper compiler options are known (currently Solaris
9395 and Linux), "threads" is the default.
9398 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
9401 *) Install various scripts to $(OPENSSLDIR)/misc, not to
9402 $(INSTALLTOP)/bin -- they shouldn't clutter directories
9403 such as /usr/local/bin.
9406 *) "make linux-shared" to build shared libraries.
9407 [Niels Poppe <niels@netbox.org>]
9409 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
9412 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
9413 extension adding in x509 utility.
9416 *) Remove NOPROTO sections and error code comments.
9419 *) Partial rewrite of the DEF file generator to now parse the ANSI
9423 *) New Configure options --prefix=DIR and --openssldir=DIR.
9426 *) Complete rewrite of the error code script(s). It is all now handled
9427 by one script at the top level which handles error code gathering,
9428 header rewriting and C source file generation. It should be much better
9429 than the old method: it now uses a modified version of Ulf's parser to
9430 read the ANSI prototypes in all header files (thus the old K&R definitions
9431 aren't needed for error creation any more) and do a better job of
9432 translating function codes into names. The old 'ASN1 error code imbedded
9433 in a comment' is no longer necessary and it doesn't use .err files which
9434 have now been deleted. Also the error code call doesn't have to appear all
9435 on one line (which resulted in some large lines...).
9438 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
9441 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
9442 0 (which usually indicates a closed connection), but continue reading.
9445 *) Fix some race conditions.
9448 *) Add support for CRL distribution points extension. Add Certificate
9449 Policies and CRL distribution points documentation.
9452 *) Move the autogenerated header file parts to crypto/opensslconf.h.
9455 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
9456 8 of keying material. Merlin has also confirmed interop with this fix
9457 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
9458 [Merlin Hughes <merlin@baltimore.ie>]
9460 *) Fix lots of warnings.
9461 [Richard Levitte <levitte@stacken.kth.se>]
9463 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
9464 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
9465 [Richard Levitte <levitte@stacken.kth.se>]
9467 *) Fix problems with sizeof(long) == 8.
9468 [Andy Polyakov <appro@fy.chalmers.se>]
9470 *) Change functions to ANSI C.
9473 *) Fix typos in error codes.
9474 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
9476 *) Remove defunct assembler files from Configure.
9479 *) SPARC v8 assembler BIGNUM implementation.
9480 [Andy Polyakov <appro@fy.chalmers.se>]
9482 *) Support for Certificate Policies extension: both print and set.
9483 Various additions to support the r2i method this uses.
9486 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
9487 return a const string when you are expecting an allocated buffer.
9490 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
9491 types DirectoryString and DisplayText.
9494 *) Add code to allow r2i extensions to access the configuration database,
9495 add an LHASH database driver and add several ctx helper functions.
9498 *) Fix an evil bug in bn_expand2() which caused various BN functions to
9499 fail when they extended the size of a BIGNUM.
9502 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
9503 support typesafe stack.
9506 *) Fix typo in SSL_[gs]et_options().
9507 [Nils Frostberg <nils@medcom.se>]
9509 *) Delete various functions and files that belonged to the (now obsolete)
9510 old X509V3 handling code.
9513 *) New Configure option "rsaref".
9516 *) Don't auto-generate pem.h.
9519 *) Introduce type-safe ASN.1 SETs.
9522 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
9523 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
9525 *) Introduce type-safe STACKs. This will almost certainly break lots of code
9526 that links with OpenSSL (well at least cause lots of warnings), but fear
9527 not: the conversion is trivial, and it eliminates loads of evil casts. A
9528 few STACKed things have been converted already. Feel free to convert more.
9529 In the fullness of time, I'll do away with the STACK type altogether.
9532 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
9533 specified in <certfile> by updating the entry in the index.txt file.
9534 This way one no longer has to edit the index.txt file manually for
9535 revoking a certificate. The -revoke option does the gory details now.
9536 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
9538 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
9539 `-text' option at all and this way the `-noout -text' combination was
9540 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
9541 [Ralf S. Engelschall]
9543 *) Make sure a corresponding plain text error message exists for the
9544 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
9545 verify callback function determined that a certificate was revoked.
9546 [Ralf S. Engelschall]
9548 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
9549 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
9550 all available cipers including rc5, which was forgotten until now.
9551 In order to let the testing shell script know which algorithms
9552 are available, a new (up to now undocumented) command
9553 "openssl list-cipher-commands" is used.
9556 *) Bugfix: s_client occasionally would sleep in select() when
9557 it should have checked SSL_pending() first.
9560 *) New functions DSA_do_sign and DSA_do_verify to provide access to
9561 the raw DSA values prior to ASN.1 encoding.
9564 *) Tweaks to Configure
9565 [Niels Poppe <niels@netbox.org>]
9567 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
9571 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
9574 *) New config option to avoid instructions that are illegal on the 80386.
9575 The default code is faster, but requires at least a 486.
9578 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
9579 SSL2_SERVER_VERSION (not used at all) macros, which are now the
9580 same as SSL2_VERSION anyway.
9583 *) New "-showcerts" option for s_client.
9586 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
9587 application. Various cleanups and fixes.
9590 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
9591 modify error routines to work internally. Add error codes and PBE init
9592 to library startup routines.
9595 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
9596 packing functions to asn1 and evp. Changed function names and error
9597 codes along the way.
9600 *) PKCS12 integration: and so it begins... First of several patches to
9601 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
9602 objects to objects.h
9605 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
9606 and display support for Thawte strong extranet extension.
9609 *) Add LinuxPPC support.
9610 [Jeff Dubrule <igor@pobox.org>]
9612 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
9613 bn_div_words in alpha.s.
9614 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
9616 *) Make sure the RSA OAEP test is skipped under -DRSAref because
9617 OAEP isn't supported when OpenSSL is built with RSAref.
9618 [Ulf Moeller <ulf@fitug.de>]
9620 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
9621 so they no longer are missing under -DNOPROTO.
9622 [Soren S. Jorvang <soren@t.dk>]
9625 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
9627 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
9628 doesn't work when the session is reused. Coming soon!
9631 *) Fix a security hole, that allows sessions to be reused in the wrong
9632 context thus bypassing client cert protection! All software that uses
9633 client certs and session caches in multiple contexts NEEDS PATCHING to
9634 allow session reuse! A fuller solution is in the works.
9635 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
9637 *) Some more source tree cleanups (removed obsolete files
9638 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
9639 permission on "config" script to be executable) and a fix for the INSTALL
9641 [Ulf Moeller <ulf@fitug.de>]
9643 *) Remove some legacy and erroneous uses of malloc, free instead of
9645 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
9647 *) Make rsa_oaep_test return non-zero on error.
9648 [Ulf Moeller <ulf@fitug.de>]
9650 *) Add support for native Solaris shared libraries. Configure
9651 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
9652 if someone would make that last step automatic.
9653 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
9655 *) ctx_size was not built with the right compiler during "make links". Fixed.
9658 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
9659 except NULL ciphers". This means the default cipher list will no longer
9660 enable NULL ciphers. They need to be specifically enabled e.g. with
9661 the string "DEFAULT:eNULL".
9664 *) Fix to RSA private encryption routines: if p < q then it would
9665 occasionally produce an invalid result. This will only happen with
9666 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
9669 *) Be less restrictive and allow also `perl util/perlpath.pl
9670 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
9671 because this way one can also use an interpreter named `perl5' (which is
9672 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
9673 installed as `perl').
9674 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9676 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
9677 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9679 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
9680 advapi32.lib to Win32 build and change the pem test comparision
9681 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
9682 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
9683 and crypto/des/ede_cbcm_enc.c.
9686 *) DES quad checksum was broken on big-endian architectures. Fixed.
9689 *) Comment out two functions in bio.h that aren't implemented. Fix up the
9690 Win32 test batch file so it (might) work again. The Win32 test batch file
9691 is horrible: I feel ill....
9694 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
9695 in e_os.h. Audit of header files to check ANSI and non ANSI
9696 sections: 10 functions were absent from non ANSI section and not exported
9697 from Windows DLLs. Fixed up libeay.num for new functions.
9700 *) Make `openssl version' output lines consistent.
9701 [Ralf S. Engelschall]
9703 *) Fix Win32 symbol export lists for BIO functions: Added
9704 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9705 to ms/libeay{16,32}.def.
9706 [Ralf S. Engelschall]
9708 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9709 fine under Unix and passes some trivial tests I've now added. But the
9710 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9711 added to make sure no one expects that this stuff really works in the
9712 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9713 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9715 [Ralf S. Engelschall]
9717 *) Fix the generation of two part addresses in perl.
9718 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9720 *) Add config entry for Linux on MIPS.
9721 [John Tobey <jtobey@channel1.com>]
9723 *) Make links whenever Configure is run, unless we are on Windoze.
9726 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9727 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9731 *) Add a useful kludge to allow package maintainers to specify compiler and
9732 other platforms details on the command line without having to patch the
9733 Configure script everytime: One now can use ``perl Configure
9734 <id>:<details>'', i.e. platform ids are allowed to have details appended
9735 to them (seperated by colons). This is treated as there would be a static
9736 pre-configured entry in Configure's %table under key <id> with value
9737 <details> and ``perl Configure <id>'' is called. So, when you want to
9738 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9739 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9740 now, which overrides the FreeBSD-elf entry on-the-fly.
9741 [Ralf S. Engelschall]
9743 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9746 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9747 on the `perl Configure ...' command line. This way one can compile
9748 OpenSSL libraries with Position Independent Code (PIC) which is needed
9749 for linking it into DSOs.
9750 [Ralf S. Engelschall]
9752 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9756 *) Cleaned up the LICENSE document: The official contact for any license
9757 questions now is the OpenSSL core team under openssl-core@openssl.org.
9758 And add a paragraph about the dual-license situation to make sure people
9759 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9760 to the OpenSSL toolkit.
9761 [Ralf S. Engelschall]
9763 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9764 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9765 Additonally cleaned up the `make links' target: Remove unnecessary
9766 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9767 to speed processing and no longer clutter the display with confusing
9768 stuff. Instead only the actually done links are displayed.
9769 [Ralf S. Engelschall]
9771 *) Permit null encryption ciphersuites, used for authentication only. It used
9772 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9773 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9777 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9778 signed attributes when verifying signatures (this would break them),
9779 the detached data encoding was wrong and public keys obtained using
9780 X509_get_pubkey() weren't freed.
9783 *) Add text documentation for the BUFFER functions. Also added a work around
9784 to a Win95 console bug. This was triggered by the password read stuff: the
9785 last character typed gets carried over to the next fread(). If you were
9786 generating a new cert request using 'req' for example then the last
9787 character of the passphrase would be CR which would then enter the first
9791 *) Added the new `Includes OpenSSL Cryptography Software' button as
9792 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9793 button and can be used by applications based on OpenSSL to show the
9794 relationship to the OpenSSL project.
9795 [Ralf S. Engelschall]
9797 *) Remove confusing variables in function signatures in files
9798 ssl/ssl_lib.c and ssl/ssl.h.
9799 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9801 *) Don't install bss_file.c under PREFIX/include/
9802 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9804 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9805 functions that return function pointers and has support for NT specific
9806 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9807 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9808 unsigned to signed types: this was killing the Win32 compile.
9811 *) Add new certificate file to stack functions,
9812 SSL_add_dir_cert_subjects_to_stack() and
9813 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9814 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9815 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9816 This means that Apache-SSL and similar packages don't have to mess around
9817 to add as many CAs as they want to the preferred list.
9820 *) Experiment with doxygen documentation. Currently only partially applied to
9822 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9823 openssl.doxy as the configuration file.
9826 *) Get rid of remaining C++-style comments which strict C compilers hate.
9827 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9829 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9830 compiled in by default: it has problems with large keys.
9833 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9834 DH private keys and/or callback functions which directly correspond to
9835 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9836 is needed for applications which have to configure certificates on a
9837 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9839 For the RSA certificate situation is makes no difference, but
9840 for the DSA certificate situation this fixes the "no shared cipher"
9841 problem where the OpenSSL cipher selection procedure failed because the
9842 temporary keys were not overtaken from the context and the API provided
9843 no way to reconfigure them.
9844 The new functions now let applications reconfigure the stuff and they
9845 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9846 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9847 non-public-API function ssl_cert_instantiate() is used as a helper
9848 function and also to reduce code redundancy inside ssl_rsa.c.
9849 [Ralf S. Engelschall]
9851 *) Move s_server -dcert and -dkey options out of the undocumented feature
9852 area because they are useful for the DSA situation and should be
9853 recognized by the users.
9854 [Ralf S. Engelschall]
9856 *) Fix the cipher decision scheme for export ciphers: the export bits are
9857 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9858 SSL_EXP_MASK. So, the original variable has to be used instead of the
9859 already masked variable.
9860 [Richard Levitte <levitte@stacken.kth.se>]
9862 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9863 [Richard Levitte <levitte@stacken.kth.se>]
9865 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9866 from `int' to `unsigned int' because it's a length and initialized by
9867 EVP_DigestFinal() which expects an `unsigned int *'.
9868 [Richard Levitte <levitte@stacken.kth.se>]
9870 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9871 script. Instead use the usual Shell->Perl transition trick.
9872 [Ralf S. Engelschall]
9874 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9875 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9876 -noout -modulus' as it's already the case for `openssl rsa -noout
9877 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9878 currently the public key is printed (a decision which was already done by
9879 `openssl dsa -modulus' in the past) which serves a similar purpose.
9880 Additionally the NO_RSA no longer completely removes the whole -modulus
9881 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9883 [Ralf S. Engelschall]
9885 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9886 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9887 [Arne Ansper <arne@ats.cyber.ee>]
9889 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9890 to be added. Now both 'req' and 'ca' can use new objects defined in the
9894 *) Add cool BIO that does syslog (or event log on NT).
9895 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9897 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9898 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9899 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9900 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9903 *) Add preliminary config info for new extension code.
9906 *) Make RSA_NO_PADDING really use no padding.
9907 [Ulf Moeller <ulf@fitug.de>]
9909 *) Generate errors when private/public key check is done.
9912 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9913 for some CRL extensions and new objects added.
9916 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9917 key usage extension and fuller support for authority key id.
9920 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9921 padding method for RSA, which is recommended for new applications in PKCS
9922 #1 v2.0 (RFC 2437, October 1998).
9923 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9924 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9925 against Bleichbacher's attack on RSA.
9926 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9929 *) Updates to the new SSL compression code
9930 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9932 *) Fix so that the version number in the master secret, when passed
9933 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9934 (because the server will not accept higher), that the version number
9935 is 0x03,0x01, not 0x03,0x00
9936 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9938 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9939 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9940 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9943 *) Support for RAW extensions where an arbitrary extension can be
9944 created by including its DER encoding. See apps/openssl.cnf for
9948 *) Make sure latest Perl versions don't interpret some generated C array
9949 code as Perl array code in the crypto/err/err_genc.pl script.
9950 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9952 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9953 not many people have the assembler. Various Win32 compilation fixes and
9954 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9958 *) Modify configure script 'Configure' to automatically create crypto/date.h
9959 file under Win32 and also build pem.h from pem.org. New script
9960 util/mkfiles.pl to create the MINFO file on environments that can't do a
9961 'make files': perl util/mkfiles.pl >MINFO should work.
9964 *) Major rework of DES function declarations, in the pursuit of correctness
9965 and purity. As a result, many evil casts evaporated, and some weirdness,
9966 too. You may find this causes warnings in your code. Zapping your evil
9967 casts will probably fix them. Mostly.
9970 *) Fix for a typo in asn1.h. Bug fix to object creation script
9971 obj_dat.pl. It considered a zero in an object definition to mean
9972 "end of object": none of the objects in objects.h have any zeros
9973 so it wasn't spotted.
9974 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9976 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9977 Masking (CBCM). In the absence of test vectors, the best I have been able
9978 to do is check that the decrypt undoes the encrypt, so far. Send me test
9979 vectors if you have them.
9982 *) Correct calculation of key length for export ciphers (too much space was
9983 allocated for null ciphers). This has not been tested!
9986 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9987 message is now correct (it understands "crypto" and "ssl" on its
9988 command line). There is also now an "update" option. This will update
9989 the util/ssleay.num and util/libeay.num files with any new functions.
9991 perl util/mkdef.pl crypto ssl update
9992 it will update them.
9995 *) Overhauled the Perl interface (perl/*):
9996 - ported BN stuff to OpenSSL's different BN library
9997 - made the perl/ source tree CVS-aware
9998 - renamed the package from SSLeay to OpenSSL (the files still contain
9999 their history because I've copied them in the repository)
10000 - removed obsolete files (the test scripts will be replaced
10001 by better Test::Harness variants in the future)
10002 [Ralf S. Engelschall]
10004 *) First cut for a very conservative source tree cleanup:
10005 1. merge various obsolete readme texts into doc/ssleay.txt
10006 where we collect the old documents and readme texts.
10007 2. remove the first part of files where I'm already sure that we no
10008 longer need them because of three reasons: either they are just temporary
10009 files which were left by Eric or they are preserved original files where
10010 I've verified that the diff is also available in the CVS via "cvs diff
10011 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
10012 the crypto/md/ stuff).
10013 [Ralf S. Engelschall]
10015 *) More extension code. Incomplete support for subject and issuer alt
10016 name, issuer and authority key id. Change the i2v function parameters
10017 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
10018 what that's for :-) Fix to ASN1 macro which messed up
10019 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
10022 *) Preliminary support for ENUMERATED type. This is largely copied from the
10026 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
10027 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10029 *) Make sure `make rehash' target really finds the `openssl' program.
10030 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
10032 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
10033 like to hear about it if this slows down other processors.
10036 *) Add CygWin32 platform information to Configure script.
10037 [Alan Batie <batie@aahz.jf.intel.com>]
10039 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
10040 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
10042 *) New program nseq to manipulate netscape certificate sequences
10045 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
10049 *) Fixes to BN code. Previously the default was to define BN_RECURSION
10050 but the BN code had some problems that would cause failures when
10051 doing certificate verification and some other functions.
10052 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10054 *) Add ASN1 and PEM code to support netscape certificate sequences.
10057 *) Add ASN1 and PEM code to support netscape certificate sequences.
10060 *) Add several PKIX and private extended key usage OIDs.
10063 *) Modify the 'ca' program to handle the new extension code. Modify
10064 openssl.cnf for new extension format, add comments.
10067 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
10068 and add a sample to openssl.cnf so req -x509 now adds appropriate
10072 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
10073 error code, add initial support to X509_print() and x509 application.
10076 *) Takes a deep breath and start addding X509 V3 extension support code. Add
10077 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
10078 stuff is currently isolated and isn't even compiled yet.
10081 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
10082 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
10083 Removed the versions check from X509 routines when loading extensions:
10084 this allows certain broken certificates that don't set the version
10085 properly to be processed.
10088 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
10089 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
10090 can still be regenerated with "make depend".
10093 *) Spelling mistake in C version of CAST-128.
10094 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
10096 *) Changes to the error generation code. The perl script err-code.pl
10097 now reads in the old error codes and retains the old numbers, only
10098 adding new ones if necessary. It also only changes the .err files if new
10099 codes are added. The makefiles have been modified to only insert errors
10100 when needed (to avoid needlessly modifying header files). This is done
10101 by only inserting errors if the .err file is newer than the auto generated
10102 C file. To rebuild all the error codes from scratch (the old behaviour)
10103 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
10104 or delete all the .err files.
10107 *) CAST-128 was incorrectly implemented for short keys. The C version has
10108 been fixed, but is untested. The assembler versions are also fixed, but
10109 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
10110 to regenerate it if needed.
10111 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
10112 Hagino <itojun@kame.net>]
10114 *) File was opened incorrectly in randfile.c.
10115 [Ulf Möller <ulf@fitug.de>]
10117 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
10118 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
10119 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
10120 al: it's just almost always a UTCTime. Note this patch adds new error
10121 codes so do a "make errors" if there are problems.
10124 *) Correct Linux 1 recognition in config.
10125 [Ulf Möller <ulf@fitug.de>]
10127 *) Remove pointless MD5 hash when using DSA keys in ca.
10128 [Anonymous <nobody@replay.com>]
10130 *) Generate an error if given an empty string as a cert directory. Also
10131 generate an error if handed NULL (previously returned 0 to indicate an
10132 error, but didn't set one).
10133 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
10135 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
10138 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
10139 parameters. This was causing a warning which killed off the Win32 compile.
10142 *) Remove C++ style comments from crypto/bn/bn_local.h.
10143 [Neil Costigan <neil.costigan@celocom.com>]
10145 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
10146 based on a text string, looking up short and long names and finally
10147 "dot" format. The "dot" format stuff didn't work. Added new function
10148 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
10149 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
10150 OID is not part of the table.
10153 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
10154 X509_LOOKUP_by_alias().
10157 *) Sort openssl functions by name.
10160 *) Get the gendsa program working (hopefully) and add it to app list. Remove
10161 encryption from sample DSA keys (in case anyone is interested the password
10165 *) Make _all_ *_free functions accept a NULL pointer.
10166 [Frans Heymans <fheymans@isaserver.be>]
10168 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
10170 [Anonymous <nobody@replay.com>]
10172 *) s_server should send the CAfile as acceptable CAs, not its own cert.
10173 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
10175 *) Don't blow it for numeric -newkey arguments to apps/req.
10176 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
10178 *) Temp key "for export" tests were wrong in s3_srvr.c.
10179 [Anonymous <nobody@replay.com>]
10181 *) Add prototype for temp key callback functions
10182 SSL_CTX_set_tmp_{rsa,dh}_callback().
10185 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
10186 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
10189 *) X509_name_add_entry() freed the wrong thing after an error.
10190 [Arne Ansper <arne@ats.cyber.ee>]
10192 *) rsa_eay.c would attempt to free a NULL context.
10193 [Arne Ansper <arne@ats.cyber.ee>]
10195 *) BIO_s_socket() had a broken should_retry() on Windoze.
10196 [Arne Ansper <arne@ats.cyber.ee>]
10198 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
10199 [Arne Ansper <arne@ats.cyber.ee>]
10201 *) Make sure the already existing X509_STORE->depth variable is initialized
10202 in X509_STORE_new(), but document the fact that this variable is still
10203 unused in the certificate verification process.
10204 [Ralf S. Engelschall]
10206 *) Fix the various library and apps files to free up pkeys obtained from
10207 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
10210 *) Fix reference counting in X509_PUBKEY_get(). This makes
10211 demos/maurice/example2.c work, amongst others, probably.
10212 [Steve Henson and Ben Laurie]
10214 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
10215 `openssl' and second, the shortcut symlinks for the `openssl <command>'
10216 are no longer created. This way we have a single and consistent command
10217 line interface `openssl <command>', similar to `cvs <command>'.
10218 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
10220 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
10221 BIT STRING wrapper always have zero unused bits.
10224 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
10227 *) Make the top-level INSTALL documentation easier to understand.
10230 *) Makefiles updated to exit if an error occurs in a sub-directory
10231 make (including if user presses ^C) [Paul Sutton]
10233 *) Make Montgomery context stuff explicit in RSA data structure.
10236 *) Fix build order of pem and err to allow for generated pem.h.
10239 *) Fix renumbering bug in X509_NAME_delete_entry().
10242 *) Enhanced the err-ins.pl script so it makes the error library number
10243 global and can add a library name. This is needed for external ASN1 and
10244 other error libraries.
10247 *) Fixed sk_insert which never worked properly.
10250 *) Fix ASN1 macros so they can handle indefinite length construted
10251 EXPLICIT tags. Some non standard certificates use these: they can now
10255 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
10256 into a single doc/ssleay.txt bundle. This way the information is still
10257 preserved but no longer messes up this directory. Now it's new room for
10258 the new set of documenation files.
10259 [Ralf S. Engelschall]
10261 *) SETs were incorrectly DER encoded. This was a major pain, because they
10262 shared code with SEQUENCEs, which aren't coded the same. This means that
10263 almost everything to do with SETs or SEQUENCEs has either changed name or
10264 number of arguments.
10265 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
10267 *) Fix test data to work with the above.
10270 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
10271 was already fixed by Eric for 0.9.1 it seems.
10272 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
10274 *) Autodetect FreeBSD3.
10277 *) Fix various bugs in Configure. This affects the following platforms:
10281 unixware-2.0-pentium
10285 *) Eliminate generated files from CVS. Reorder tests to regenerate files
10286 before they are needed.
10289 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
10293 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
10295 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
10296 changed SSLeay to OpenSSL in version strings.
10297 [Ralf S. Engelschall]
10299 *) Some fixups to the top-level documents.
10302 *) Fixed the nasty bug where rsaref.h was not found under compile-time
10303 because the symlink to include/ was missing.
10304 [Ralf S. Engelschall]
10306 *) Incorporated the popular no-RSA/DSA-only patches
10307 which allow to compile a RSA-free SSLeay.
10308 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
10310 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
10311 when "ssleay" is still not found.
10312 [Ralf S. Engelschall]
10314 *) Added more platforms to Configure: Cray T3E, HPUX 11,
10315 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
10317 *) Updated the README file.
10318 [Ralf S. Engelschall]
10320 *) Added various .cvsignore files in the CVS repository subdirs
10321 to make a "cvs update" really silent.
10322 [Ralf S. Engelschall]
10324 *) Recompiled the error-definition header files and added
10325 missing symbols to the Win32 linker tables.
10326 [Ralf S. Engelschall]
10328 *) Cleaned up the top-level documents;
10329 o new files: CHANGES and LICENSE
10330 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
10331 o merged COPYRIGHT into LICENSE
10332 o removed obsolete TODO file
10333 o renamed MICROSOFT to INSTALL.W32
10334 [Ralf S. Engelschall]
10336 *) Removed dummy files from the 0.9.1b source tree:
10337 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
10338 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
10339 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
10340 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
10341 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
10342 [Ralf S. Engelschall]
10344 *) Added various platform portability fixes.
10347 *) The Genesis of the OpenSSL rpject:
10348 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
10349 Young and Tim J. Hudson created while they were working for C2Net until
10351 [The OpenSSL Project]
10354 Changes between 0.9.0b and 0.9.1b [not released]
10356 *) Updated a few CA certificates under certs/
10359 *) Changed some BIGNUM api stuff.
10362 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
10363 DGUX x86, Linux Alpha, etc.
10366 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
10367 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
10371 *) Add -strparse option to asn1pars program which parses nested
10373 [Dr Stephen Henson <shenson@bigfoot.com>]
10375 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
10378 *) DSA fix for "ca" program.
10381 *) Added "-genkey" option to "dsaparam" program.
10384 *) Added RIPE MD160 (rmd160) message digest.
10387 *) Added -a (all) option to "ssleay version" command.
10390 *) Added PLATFORM define which is the id given to Configure.
10393 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
10396 *) Extended the ASN.1 parser routines.
10399 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
10402 *) Added a BN_CTX to the BN library.
10405 *) Fixed the weak key values in DES library
10408 *) Changed API in EVP library for cipher aliases.
10411 *) Added support for RC2/64bit cipher.
10414 *) Converted the lhash library to the crypto/mem.c functions.
10417 *) Added more recognized ASN.1 object ids.
10420 *) Added more RSA padding checks for SSL/TLS.
10423 *) Added BIO proxy/filter functionality.
10426 *) Added extra_certs to SSL_CTX which can be used
10427 send extra CA certificates to the client in the CA cert chain sending
10428 process. It can be configured with SSL_CTX_add_extra_chain_cert().
10431 *) Now Fortezza is denied in the authentication phase because
10432 this is key exchange mechanism is not supported by SSLeay at all.
10435 *) Additional PKCS1 checks.
10438 *) Support the string "TLSv1" for all TLS v1 ciphers.
10441 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
10442 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
10445 *) Fixed a few memory leaks.
10448 *) Fixed various code and comment typos.
10451 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
10452 bytes sent in the client random.
10453 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob