5 Changes between 1.0.x and 1.1.0 [xx XXX xxxx]
7 *) Make openssl verify return errors.
8 [Chris Palmer <palmer@google.com> and Ben Laurie]
11 [Rob Stradling <rob.stradling@comodo.com> and Ben Laurie]
13 *) New option -crl_download in several openssl utilities to download CRLs
14 from CRLDP extension in certificates.
17 *) Integrate hostname, email address and IP address checking with certificate
18 verification. New verify options supporting checking in opensl utility.
21 *) New function X509_CRL_diff to generate a delta CRL from the difference
22 of two full CRLs. Add support to "crl" utility.
25 *) New options -CRL and -CRLform for s_client and s_server for CRLs.
28 *) Extend OCSP I/O functions so they can be used for simple general purpose
29 HTTP as well as OCSP. New wrapper function which can be used to download
30 CRLs using the OCSP API.
33 *) New functions to set lookup_crls callback and to retrieve
34 X509_STORE from X509_STORE_CTX.
37 *) New ctrl and macro to retrieve supported points extensions.
38 Print out extension in s_server and s_client.
41 *) New function ASN1_TIME_diff to calculate the difference between two
42 ASN1_TIME structures or one structure and the current time.
45 *) Fixes and wildcard matching support to hostname and email checking
46 functions. Add manual page.
47 [Florian Weimer (Red Hat Product Security Team)]
49 *) New experimental SSL_CONF* functions. These provide a common framework
50 for application configuration using configuration files or command lines.
53 *) New functions to check a hostname email or IP address against a
54 certificate. Add options x509 utility to print results of checks against
58 *) Add -rev test option to s_server to just reverse order of characters
59 received by client and send back to server. Also prints an abbreviated
60 summary of the connection parameters.
63 *) New option -brief for s_client and s_server to print out a brief summary
64 of connection parameters.
67 *) Add functions to retrieve and manipulate the raw cipherlist sent by a
71 *) New Suite B modes for TLS code. These use and enforce the requirements
72 of RFC6460: restrict ciphersuites, only permit Suite B algorithms and
73 only use Suite B curves. The Suite B modes can be set by using the
74 strings "SUITEB128", "SUITEB192" or "SUITEB128ONLY" for the cipherstring.
77 *) New chain verification flags for Suite B levels of security. Check
78 algorithms are acceptable when flags are set in X509_verify_cert.
81 *) Make tls1_check_chain return a set of flags indicating checks passed
82 by a certificate chain. Add additional tests to handle client
83 certificates: checks for matching certificate type and issuer name
87 *) If an attempt is made to use a signature algorithm not in the peer
88 preference list abort the handshake. If client has no suitable
89 signature algorithms in response to a certificate request do not
93 *) If server EC tmp key is not in client preference list abort handshake.
96 *) Add support for certificate stores in CERT structure. This makes it
97 possible to have different stores per SSL structure or one store in
98 the parent SSL_CTX. Include distint stores for certificate chain
99 verification and chain building. New ctrl SSL_CTRL_BUILD_CERT_CHAIN
100 to build and store a certificate chain in CERT structure: returing
101 an error if the chain cannot be built: this will allow applications
102 to test if a chain is correctly configured.
104 Note: if the CERT based stores are not set then the parent SSL_CTX
105 store is used to retain compatibility with existing behaviour.
109 *) New function ssl_set_client_disabled to set a ciphersuite disabled
110 mask based on the current session, check mask when sending client
111 hello and checking the requested ciphersuite.
114 *) New ctrls to retrieve and set certificate types in a certificate
115 request message. Print out received values in s_client. If certificate
116 types is not set with custom values set sensible values based on
117 supported signature algorithms.
120 *) Support for distinct client and server supported signature algorithms.
123 *) Add certificate callback. If set this is called whenever a certificate
124 is required by client or server. An application can decide which
125 certificate chain to present based on arbitrary criteria: for example
126 supported signature algorithms. Add very simple example to s_server.
127 This fixes many of the problems and restrictions of the existing client
128 certificate callback: for example you can now clear an existing
129 certificate and specify the whole chain.
132 *) Add new "valid_flags" field to CERT_PKEY structure which determines what
133 the certificate can be used for (if anything). Set valid_flags field
134 in new tls1_check_chain function. Simplify ssl_set_cert_masks which used
135 to have similar checks in it.
137 Add new "cert_flags" field to CERT structure and include a "strict mode".
138 This enforces some TLS certificate requirements (such as only permitting
139 certificate signature algorithms contained in the supported algorithms
140 extension) which some implementations ignore: this option should be used
141 with caution as it could cause interoperability issues.
144 *) Update and tidy signature algorithm extension processing. Work out
145 shared signature algorithms based on preferences and peer algorithms
146 and print them out in s_client and s_server. Abort handshake if no
147 shared signature algorithms.
150 *) Add new functions to allow customised supported signature algorithms
151 for SSL and SSL_CTX structures. Add options to s_client and s_server
155 *) New function SSL_certs_clear() to delete all references to certificates
156 from an SSL structure. Before this once a certificate had been added
157 it couldn't be removed.
160 *) Initial SSL tracing code. This parses out SSL/TLS records using the
161 message callback and prints the results. Needs compile time option
162 "enable-ssl-trace". New options to s_client and s_server to enable
166 *) New functions to retrieve certificate signature and signature
170 *) Print out deprecated issuer and subject unique ID fields in
174 *) Update fips_test_suite to support multiple command line options. New
175 test to induce all self test errors in sequence and check expected
179 *) Add FIPS_{rsa,dsa,ecdsa}_{sign,verify} functions which digest and
180 sign or verify all in one operation.
183 *) Add fips_algvs: a multicall fips utility incorporaing all the algorithm
184 test programs and fips_test_suite. Includes functionality to parse
185 the minimal script output of fipsalgest.pl directly.
188 *) Add authorisation parameter to FIPS_module_mode_set().
191 *) Add FIPS selftest for ECDH algorithm using P-224 and B-233 curves.
194 *) Use separate DRBG fields for internal and external flags. New function
195 FIPS_drbg_health_check() to perform on demand health checking. Add
196 generation tests to fips_test_suite with reduced health check interval to
197 demonstrate periodic health checking. Add "nodh" option to
198 fips_test_suite to skip very slow DH test.
201 *) New function FIPS_get_cipherbynid() to lookup FIPS supported ciphers
205 *) More extensive health check for DRBG checking many more failure modes.
206 New function FIPS_selftest_drbg_all() to handle every possible DRBG
207 combination: call this in fips_test_suite.
210 *) Add support for Dual EC DRBG from SP800-90. Update DRBG algorithm test
211 and POST to handle Dual EC cases.
214 *) Add support for canonical generation of DSA parameter 'g'. See
217 *) Add support for HMAC DRBG from SP800-90. Update DRBG algorithm test and
218 POST to handle HMAC cases.
221 *) Add functions FIPS_module_version() and FIPS_module_version_text()
222 to return numberical and string versions of the FIPS module number.
225 *) Rename FIPS_mode_set and FIPS_mode to FIPS_module_mode_set and
226 FIPS_module_mode. FIPS_mode and FIPS_mode_set will be implmeneted
227 outside the validated module in the FIPS capable OpenSSL.
230 *) Minor change to DRBG entropy callback semantics. In some cases
231 there is no mutiple of the block length between min_len and
232 max_len. Allow the callback to return more than max_len bytes
233 of entropy but discard any extra: it is the callback's responsibility
234 to ensure that the extra data discarded does not impact the
235 requested amount of entropy.
238 *) Add PRNG security strength checks to RSA, DSA and ECDSA using
239 information in FIPS186-3, SP800-57 and SP800-131A.
242 *) CCM support via EVP. Interface is very similar to GCM case except we
243 must supply all data in one chunk (i.e. no update, final) and the
244 message length must be supplied if AAD is used. Add algorithm test
248 *) Initial version of POST overhaul. Add POST callback to allow the status
249 of POST to be monitored and/or failures induced. Modify fips_test_suite
250 to use callback. Always run all selftests even if one fails.
253 *) XTS support including algorithm test driver in the fips_gcmtest program.
254 Note: this does increase the maximum key length from 32 to 64 bytes but
255 there should be no binary compatibility issues as existing applications
256 will never use XTS mode.
259 *) Extensive reorganisation of FIPS PRNG behaviour. Remove all dependencies
260 to OpenSSL RAND code and replace with a tiny FIPS RAND API which also
261 performs algorithm blocking for unapproved PRNG types. Also do not
262 set PRNG type in FIPS_mode_set(): leave this to the application.
263 Add default OpenSSL DRBG handling: sets up FIPS PRNG and seeds with
264 the standard OpenSSL PRNG: set additional data to a date time vector.
267 *) Rename old X9.31 PRNG functions of the form FIPS_rand* to FIPS_x931*.
268 This shouldn't present any incompatibility problems because applications
269 shouldn't be using these directly and any that are will need to rethink
270 anyway as the X9.31 PRNG is now deprecated by FIPS 140-2
273 *) Extensive self tests and health checking required by SP800-90 DRBG.
274 Remove strength parameter from FIPS_drbg_instantiate and always
275 instantiate at maximum supported strength.
278 *) Add ECDH code to fips module and fips_ecdhvs for primitives only testing.
281 *) New algorithm test program fips_dhvs to handle DH primitives only testing.
284 *) New function DH_compute_key_padded() to compute a DH key and pad with
285 leading zeroes if needed: this complies with SP800-56A et al.
288 *) Initial implementation of SP800-90 DRBGs for Hash and CTR. Not used by
289 anything, incomplete, subject to change and largely untested at present.
292 *) Modify fipscanisteronly build option to only build the necessary object
293 files by filtering FIPS_EX_OBJ through a perl script in crypto/Makefile.
296 *) Add experimental option FIPSSYMS to give all symbols in
297 fipscanister.o and FIPS or fips prefix. This will avoid
298 conflicts with future versions of OpenSSL. Add perl script
299 util/fipsas.pl to preprocess assembly language source files
300 and rename any affected symbols.
303 *) Add selftest checks and algorithm block of non-fips algorithms in
304 FIPS mode. Remove DES2 from selftests.
307 *) Add ECDSA code to fips module. Add tiny fips_ecdsa_check to just
308 return internal method without any ENGINE dependencies. Add new
309 tiny fips sign and verify functions.
312 *) New build option no-ec2m to disable characteristic 2 code.
315 *) New build option "fipscanisteronly". This only builds fipscanister.o
316 and (currently) associated fips utilities. Uses the file Makefile.fips
317 instead of Makefile.org as the prototype.
320 *) Add some FIPS mode restrictions to GCM. Add internal IV generator.
321 Update fips_gcmtest to use IV generator.
324 *) Initial, experimental EVP support for AES-GCM. AAD can be input by
325 setting output buffer to NULL. The *Final function must be
326 called although it will not retrieve any additional data. The tag
327 can be set or retrieved with a ctrl. The IV length is by default 12
328 bytes (96 bits) but can be set to an alternative value. If the IV
329 length exceeds the maximum IV length (currently 16 bytes) it cannot be
333 *) New flag in ciphers: EVP_CIPH_FLAG_CUSTOM_CIPHER. This means the
334 underlying do_cipher function handles all cipher semantics itself
335 including padding and finalisation. This is useful if (for example)
336 an ENGINE cipher handles block padding itself. The behaviour of
337 do_cipher is subtly changed if this flag is set: the return value
338 is the number of characters written to the output buffer (zero is
339 no longer an error code) or a negative error code. Also if the
340 input buffer is NULL and length 0 finalisation should be performed.
343 *) If a candidate issuer certificate is already part of the constructed
344 path ignore it: new debug notification X509_V_ERR_PATH_LOOP for this case.
347 *) Improve forward-security support: add functions
349 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure))
350 void SSL_set_not_resumable_session_callback(SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure))
352 for use by SSL/TLS servers; the callback function will be called whenever a
353 new session is created, and gets to decide whether the session may be
354 cached to make it resumable (return 0) or not (return 1). (As by the
355 SSL/TLS protocol specifications, the session_id sent by the server will be
356 empty to indicate that the session is not resumable; also, the server will
357 not generate RFC 4507 (RFC 5077) session tickets.)
359 A simple reasonable callback implementation is to return is_forward_secure.
360 This parameter will be set to 1 or 0 depending on the ciphersuite selected
361 by the SSL/TLS server library, indicating whether it can provide forward
363 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
365 *) New function OPENSSL_gmtime_diff to find the difference in days
366 and seconds between two tm structures. This will be used to provide
367 additional functionality for ASN1_TIME.
370 *) Add -trusted_first option which attempts to find certificates in the
371 trusted store even if an untrusted chain is also supplied.
374 *) Initial experimental support for explicitly trusted non-root CAs.
375 OpenSSL still tries to build a complete chain to a root but if an
376 intermediate CA has a trust setting included that is used. The first
377 setting is used: whether to trust or reject.
380 *) New -verify_name option in command line utilities to set verification
384 *) Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE.
385 Add CMAC pkey methods.
388 *) Experimental regnegotiation in s_server -www mode. If the client
389 browses /reneg connection is renegotiated. If /renegcert it is
390 renegotiated requesting a certificate.
393 *) Add an "external" session cache for debugging purposes to s_server. This
394 should help trace issues which normally are only apparent in deployed
395 multi-process servers.
398 *) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where
399 return value is ignored. NB. The functions RAND_add(), RAND_seed(),
400 BIO_set_cipher() and some obscure PEM functions were changed so they
401 can now return an error. The RAND changes required a change to the
402 RAND_METHOD structure.
405 *) New macro __owur for "OpenSSL Warn Unused Result". This makes use of
406 a gcc attribute to warn if the result of a function is ignored. This
407 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h
408 whose return value is often ignored.
411 Changes between 1.0.1 and 1.0.2 [xx XXX xxxx]
413 *) MIPS assembly pack updates: support for MIPS32r2 and SmartMIPS ASE,
414 platform support for Linux and Android.
417 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
418 the right response is stapled. Also change current certificate to
419 the certificate actually sent.
420 See http://rt.openssl.org/Ticket/Display.html?id=2836.
421 [Rob Stradling <rob.stradling@comodo.com>]
423 *) Support for linux-x32, ILP32 environment in x86_64 framework.
427 [Emilia Kasper, Adam Langley, Ben Laurie (Google)]
429 *) Experimental multi-implementation support for FIPS capable OpenSSL.
430 When in FIPS mode the approved implementations are used as normal,
431 when not in FIPS mode the internal unapproved versions are used instead.
432 This means that the FIPS capable OpenSSL isn't forced to use the
433 (often lower perfomance) FIPS implementations outside FIPS mode.
436 *) Transparently support X9.42 DH parameters when calling
437 PEM_read_bio_DHparameters. This means existing applications can handle
438 the new parameter format automatically.
441 *) Initial experimental support for X9.42 DH parameter format: mainly
442 to support use of 'q' parameter for RFC5114 parameters.
445 *) Add DH parameters from RFC5114 including test data to dhtest.
448 *) Support for automatic EC temporary key parameter selection. If enabled
449 the most preferred EC parameters are automatically used instead of
450 hardcoded fixed parameters. Now a server just has to call:
451 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically
452 support ECDH and use the most appropriate parameters.
455 *) Enhance and tidy EC curve and point format TLS extension code. Use
456 static structures instead of allocation if default values are used.
457 New ctrls to set curves we wish to support and to retrieve shared curves.
458 Print out shared curves in s_server. New options to s_server and s_client
459 to set list of supported curves.
462 *) New ctrls to retrieve supported signature algorithms and
463 supported curve values as an array of NIDs. Extend openssl utility
464 to print out received values.
467 *) Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert
468 between NIDs and the more common NIST names such as "P-256". Enhance
469 ecparam utility and ECC method to recognise the NIST names for curves.
472 *) Enhance SSL/TLS certificate chain handling to support different
473 chains for each certificate instead of one chain in the parent SSL_CTX.
476 *) Support for fixed DH ciphersuite client authentication: where both
477 server and client use DH certificates with common parameters.
480 *) Support for fixed DH ciphersuites: those requiring DH server
484 Changes between 1.0.1c and 1.0.1d [xx XXX xxxx]
486 *) Fix possible deadlock when decoding public keys.
489 *) Don't use TLS 1.0 record version number in initial client hello
493 Changes between 1.0.1b and 1.0.1c [10 May 2012]
495 *) Sanity check record length before skipping explicit IV in TLS
496 1.2, 1.1 and DTLS to avoid DoS attack.
498 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
499 fuzzing as a service testing platform.
503 *) Initialise tkeylen properly when encrypting CMS messages.
504 Thanks to Solar Designer of Openwall for reporting this issue.
507 *) In FIPS mode don't try to use composite ciphers as they are not
511 Changes between 1.0.1a and 1.0.1b [26 Apr 2012]
513 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and
514 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately
515 mean any application compiled against OpenSSL 1.0.0 headers setting
516 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng
517 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to
518 0x10000000L Any application which was previously compiled against
519 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1
520 will need to be recompiled as a result. Letting be results in
521 inability to disable specifically TLS 1.1 and in client context,
522 in unlike event, limit maximum offered version to TLS 1.0 [see below].
525 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not
526 disable just protocol X, but all protocols above X *if* there are
527 protocols *below* X still enabled. In more practical terms it means
528 that if application wants to disable TLS1.0 in favor of TLS1.1 and
529 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass
530 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to
534 Changes between 1.0.1 and 1.0.1a [19 Apr 2012]
536 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
537 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
538 in CRYPTO_realloc_clean.
540 Thanks to Tavis Ormandy, Google Security Team, for discovering this
541 issue and to Adam Langley <agl@chromium.org> for fixing it.
543 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
545 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections.
548 *) Workarounds for some broken servers that "hang" if a client hello
549 record length exceeds 255 bytes:
551 1. Do not use record version number > TLS 1.0 in initial client
552 hello: some (but not all) hanging servers will now work.
553 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate
554 the number of ciphers sent in the client hello. This should be
555 set to an even number, such as 50, for example by passing:
556 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure.
557 Most broken servers should now work.
558 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable
559 TLS 1.2 client support entirely.
562 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH.
565 Changes between 1.0.0h and 1.0.1 [14 Mar 2012]
567 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
568 STRING form instead of a DigestInfo.
571 *) The format used for MDC2 RSA signatures is inconsistent between EVP
572 and the RSA_sign/RSA_verify functions. This was made more apparent when
573 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
574 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect
575 the correct format in RSA_verify so both forms transparently work.
578 *) Some servers which support TLS 1.0 can choke if we initially indicate
579 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
580 encrypted premaster secret. As a workaround use the maximum pemitted
581 client version in client hello, this should keep such servers happy
582 and still work with previous versions of OpenSSL.
585 *) Add support for TLS/DTLS heartbeats.
586 [Robin Seggelmann <seggelmann@fh-muenster.de>]
588 *) Add support for SCTP.
589 [Robin Seggelmann <seggelmann@fh-muenster.de>]
591 *) Improved PRNG seeding for VOS.
592 [Paul Green <Paul.Green@stratus.com>]
594 *) Extensive assembler packs updates, most notably:
596 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
597 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
598 - x86_64: bit-sliced AES implementation;
599 - ARM: NEON support, contemporary platforms optimizations;
600 - s390x: z196 support;
601 - *: GHASH and GF(2^m) multiplication implementations;
605 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
606 (removal of unnecessary code)
607 [Peter Sylvester <peter.sylvester@edelweb.fr>]
609 *) Add TLS key material exporter from RFC 5705.
612 *) Add DTLS-SRTP negotiation from RFC 5764.
615 *) Add Next Protocol Negotiation,
616 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
617 disabled with a no-npn flag to config or Configure. Code donated
619 [Adam Langley <agl@google.com> and Ben Laurie]
621 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
622 NIST-P256, NIST-P521, with constant-time single point multiplication on
623 typical inputs. Compiler support for the nonstandard type __uint128_t is
624 required to use this (present in gcc 4.4 and later, for 64-bit builds).
625 Code made available under Apache License version 2.0.
627 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
628 line to include this in your build of OpenSSL, and run "make depend" (or
629 "make update"). This enables the following EC_METHODs:
631 EC_GFp_nistp224_method()
632 EC_GFp_nistp256_method()
633 EC_GFp_nistp521_method()
635 EC_GROUP_new_by_curve_name() will automatically use these (while
636 EC_GROUP_new_curve_GFp() currently prefers the more flexible
638 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
640 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
641 all platforms. Move ssize_t definition from e_os.h to the public
642 header file e_os2.h as it now appears in public header file cms.h
645 *) New -sigopt option to the ca, req and x509 utilities. Additional
646 signature parameters can be passed using this option and in
650 *) Add RSA PSS signing function. This will generate and set the
651 appropriate AlgorithmIdentifiers for PSS based on those in the
652 corresponding EVP_MD_CTX structure. No application support yet.
655 *) Support for companion algorithm specific ASN1 signing routines.
656 New function ASN1_item_sign_ctx() signs a pre-initialised
657 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
658 the appropriate parameters.
661 *) Add new algorithm specific ASN1 verification initialisation function
662 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
663 handling will be the same no matter what EVP_PKEY_METHOD is used.
664 Add a PSS handler to support verification of PSS signatures: checked
665 against a number of sample certificates.
668 *) Add signature printing for PSS. Add PSS OIDs.
669 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
671 *) Add algorithm specific signature printing. An individual ASN1 method
672 can now print out signatures instead of the standard hex dump.
674 More complex signatures (e.g. PSS) can print out more meaningful
675 information. Include DSA version that prints out the signature
679 *) Password based recipient info support for CMS library: implementing
683 *) Split password based encryption into PBES2 and PBKDF2 functions. This
684 neatly separates the code into cipher and PBE sections and is required
685 for some algorithms that split PBES2 into separate pieces (such as
689 *) Session-handling fixes:
690 - Fix handling of connections that are resuming with a session ID,
691 but also support Session Tickets.
692 - Fix a bug that suppressed issuing of a new ticket if the client
693 presented a ticket with an expired session.
694 - Try to set the ticket lifetime hint to something reasonable.
695 - Make tickets shorter by excluding irrelevant information.
696 - On the client side, don't ignore renewed tickets.
697 [Adam Langley, Bodo Moeller (Google)]
699 *) Fix PSK session representation.
702 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
704 This work was sponsored by Intel.
707 *) Add GCM support to TLS library. Some custom code is needed to split
708 the IV between the fixed (from PRF) and explicit (from TLS record)
709 portions. This adds all GCM ciphersuites supported by RFC5288 and
710 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
711 add a special AESGCM string for GCM only.
714 *) Expand range of ctrls for AES GCM. Permit setting invocation
715 field on decrypt and retrieval of invocation field only on encrypt.
718 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
719 As required by RFC5289 these ciphersuites cannot be used if for
720 versions of TLS earlier than 1.2.
723 *) For FIPS capable OpenSSL interpret a NULL default public key method
724 as unset and return the appopriate default but do *not* set the default.
725 This means we can return the appopriate method in applications that
726 swicth between FIPS and non-FIPS modes.
729 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
730 ENGINE is used then we cannot handle that in the FIPS module so we
731 keep original code iff non-FIPS operations are allowed.
734 *) Add -attime option to openssl utilities.
735 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
737 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
740 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
741 FIPS EC methods unconditionally for now.
744 *) New build option no-ec2m to disable characteristic 2 code.
747 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
748 all cases can be covered as some introduce binary incompatibilities.
751 *) Redirect RSA operations to FIPS module including keygen,
752 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
755 *) Add similar low level API blocking to ciphers.
758 *) Low level digest APIs are not approved in FIPS mode: any attempt
759 to use these will cause a fatal error. Applications that *really* want
760 to use them can use the private_* version instead.
763 *) Redirect cipher operations to FIPS module for FIPS builds.
766 *) Redirect digest operations to FIPS module for FIPS builds.
769 *) Update build system to add "fips" flag which will link in fipscanister.o
770 for static and shared library builds embedding a signature if needed.
773 *) Output TLS supported curves in preference order instead of numerical
774 order. This is currently hardcoded for the highest order curves first.
775 This should be configurable so applications can judge speed vs strength.
778 *) Add TLS v1.2 server support for client authentication.
781 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
785 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
786 FIPS modules versions.
789 *) Add TLS v1.2 client side support for client authentication. Keep cache
790 of handshake records longer as we don't know the hash algorithm to use
791 until after the certificate request message is received.
794 *) Initial TLS v1.2 client support. Add a default signature algorithms
795 extension including all the algorithms we support. Parse new signature
796 format in client key exchange. Relax some ECC signing restrictions for
797 TLS v1.2 as indicated in RFC5246.
800 *) Add server support for TLS v1.2 signature algorithms extension. Switch
801 to new signature format when needed using client digest preference.
802 All server ciphersuites should now work correctly in TLS v1.2. No client
803 support yet and no support for client certificates.
806 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
807 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
808 ciphersuites. At present only RSA key exchange ciphersuites work with
809 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
810 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
811 and version checking.
814 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
815 with this defined it will not be affected by any changes to ssl internal
816 structures. Add several utility functions to allow openssl application
817 to work with OPENSSL_NO_SSL_INTERN defined.
821 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
823 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
826 *) Permit abbreviated handshakes when renegotiating using the function
827 SSL_renegotiate_abbreviated().
828 [Robin Seggelmann <seggelmann@fh-muenster.de>]
830 *) Add call to ENGINE_register_all_complete() to
831 ENGINE_load_builtin_engines(), so some implementations get used
832 automatically instead of needing explicit application support.
835 *) Add support for TLS key exporter as described in RFC5705.
836 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
838 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
839 a few changes are required:
841 Add SSL_OP_NO_TLSv1_1 flag.
843 Update version checking logic to handle version 1.1.
844 Add explicit IV handling (ported from DTLS code).
845 Add command line options to s_client/s_server.
848 Changes between 1.0.0g and 1.0.0h [12 Mar 2012]
850 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
851 in CMS and PKCS7 code. When RSA decryption fails use a random key for
852 content decryption and always return the same error. Note: this attack
853 needs on average 2^20 messages so it only affects automated senders. The
854 old behaviour can be reenabled in the CMS code by setting the
855 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
856 an MMA defence is not necessary.
857 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
858 this issue. (CVE-2012-0884)
861 *) Fix CVE-2011-4619: make sure we really are receiving a
862 client hello before rejecting multiple SGC restarts. Thanks to
863 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
866 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
868 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
869 Thanks to Antonio Martin, Enterprise Secure Access Research and
870 Development, Cisco Systems, Inc. for discovering this bug and
871 preparing a fix. (CVE-2012-0050)
874 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
876 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
877 of the Vaudenay padding oracle attack on CBC mode encryption
878 which enables an efficient plaintext recovery attack against
879 the OpenSSL implementation of DTLS. Their attack exploits timing
880 differences arising during decryption processing. A research
881 paper describing this attack can be found at:
882 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
883 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
884 Security Group at Royal Holloway, University of London
885 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
886 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
887 for preparing the fix. (CVE-2011-4108)
888 [Robin Seggelmann, Michael Tuexen]
890 *) Clear bytes used for block padding of SSL 3.0 records.
892 [Adam Langley (Google)]
894 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
895 Kadianakis <desnacked@gmail.com> for discovering this issue and
896 Adam Langley for preparing the fix. (CVE-2011-4619)
897 [Adam Langley (Google)]
899 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
900 [Andrey Kulikov <amdeich@gmail.com>]
902 *) Prevent malformed RFC3779 data triggering an assertion failure.
903 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
904 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
905 [Rob Austein <sra@hactrn.net>]
907 *) Improved PRNG seeding for VOS.
908 [Paul Green <Paul.Green@stratus.com>]
910 *) Fix ssl_ciph.c set-up race.
911 [Adam Langley (Google)]
913 *) Fix spurious failures in ecdsatest.c.
914 [Emilia Käsper (Google)]
916 *) Fix the BIO_f_buffer() implementation (which was mixing different
917 interpretations of the '..._len' fields).
918 [Adam Langley (Google)]
920 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
921 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
922 threads won't reuse the same blinding coefficients.
924 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
925 lock to call BN_BLINDING_invert_ex, and avoids one use of
926 BN_BLINDING_update for each BN_BLINDING structure (previously,
927 the last update always remained unused).
928 [Emilia Käsper (Google)]
930 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
931 [Bob Buckholz (Google)]
933 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
935 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
936 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
937 [Kaspar Brand <ossl@velox.ch>]
939 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
940 for multi-threaded use of ECDH. (CVE-2011-3210)
941 [Adam Langley (Google)]
943 *) Fix x509_name_ex_d2i memory leak on bad inputs.
946 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
947 signature public key algorithm by using OID xref utilities instead.
948 Before this you could only use some ECC ciphersuites with SHA1 only.
951 *) Add protection against ECDSA timing attacks as mentioned in the paper
952 by Billy Bob Brumley and Nicola Tuveri, see:
954 http://eprint.iacr.org/2011/232.pdf
956 [Billy Bob Brumley and Nicola Tuveri]
958 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
960 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
961 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
963 *) Fix bug in string printing code: if *any* escaping is enabled we must
964 escape the escape character (backslash) or the resulting string is
968 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
970 *) Disable code workaround for ancient and obsolete Netscape browsers
971 and servers: an attacker can use it in a ciphersuite downgrade attack.
972 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
975 *) Fixed J-PAKE implementation error, originally discovered by
976 Sebastien Martini, further info and confirmation from Stefan
977 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
980 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
982 *) Fix extension code to avoid race conditions which can result in a buffer
983 overrun vulnerability: resumed sessions must not be modified as they can
984 be shared by multiple threads. CVE-2010-3864
987 *) Fix WIN32 build system to correctly link an ENGINE directory into
991 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
993 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
995 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
997 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
999 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
1000 context. The operation can be customised via the ctrl mechanism in
1001 case ENGINEs want to include additional functionality.
1004 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
1007 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
1008 output hashes compatible with older versions of OpenSSL.
1009 [Willy Weisz <weisz@vcpc.univie.ac.at>]
1011 *) Fix compression algorithm handling: if resuming a session use the
1012 compression algorithm of the resumed session instead of determining
1013 it from client hello again. Don't allow server to change algorithm.
1016 *) Add load_crls() function to apps tidying load_certs() too. Add option
1017 to verify utility to allow additional CRLs to be included.
1020 *) Update OCSP request code to permit adding custom headers to the request:
1021 some responders need this.
1024 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
1026 [Julia Lawall <julia@diku.dk>]
1028 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
1029 needlessly dereferenced structures, used obsolete functions and
1030 didn't handle all updated verify codes correctly.
1033 *) Disable MD2 in the default configuration.
1036 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
1037 indicate the initial BIO being pushed or popped. This makes it possible
1038 to determine whether the BIO is the one explicitly called or as a result
1039 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
1040 it handles reference counts correctly and doesn't zero out the I/O bio
1041 when it is not being explicitly popped. WARNING: applications which
1042 included workarounds for the old buggy behaviour will need to be modified
1043 or they could free up already freed BIOs.
1046 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
1047 renaming to all platforms (within the 0.9.8 branch, this was
1048 done conditionally on Netware platforms to avoid a name clash).
1049 [Guenter <lists@gknw.net>]
1051 *) Add ECDHE and PSK support to DTLS.
1052 [Michael Tuexen <tuexen@fh-muenster.de>]
1054 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
1058 *) Add "missing" function EVP_MD_flags() (without this the only way to
1059 retrieve a digest flags is by accessing the structure directly. Update
1060 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
1061 or cipher is registered as in the "from" argument. Print out all
1062 registered digests in the dgst usage message instead of manually
1063 attempting to work them out.
1066 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
1067 this allows the use of compression and extensions. Change default cipher
1068 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
1069 by default unless an application cipher string requests it.
1072 *) Alter match criteria in PKCS12_parse(). It used to try to use local
1073 key ids to find matching certificates and keys but some PKCS#12 files
1074 don't follow the (somewhat unwritten) rules and this strategy fails.
1075 Now just gather all certificates together and the first private key
1076 then look for the first certificate that matches the key.
1079 *) Support use of registered digest and cipher names for dgst and cipher
1080 commands instead of having to add each one as a special case. So now
1087 openssl dgst -sha256 foo
1089 and this works for ENGINE based algorithms too.
1093 *) Update Gost ENGINE to support parameter files.
1094 [Victor B. Wagner <vitus@cryptocom.ru>]
1096 *) Support GeneralizedTime in ca utility.
1097 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
1099 *) Enhance the hash format used for certificate directory links. The new
1100 form uses the canonical encoding (meaning equivalent names will work
1101 even if they aren't identical) and uses SHA1 instead of MD5. This form
1102 is incompatible with the older format and as a result c_rehash should
1103 be used to rebuild symbolic links.
1106 *) Make PKCS#8 the default write format for private keys, replacing the
1107 traditional format. This form is standardised, more secure and doesn't
1108 include an implicit MD5 dependency.
1111 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
1112 committed to OpenSSL should pass this lot as a minimum.
1115 *) Add session ticket override functionality for use by EAP-FAST.
1116 [Jouni Malinen <j@w1.fi>]
1118 *) Modify HMAC functions to return a value. Since these can be implemented
1119 in an ENGINE errors can occur.
1122 *) Type-checked OBJ_bsearch_ex.
1125 *) Type-checked OBJ_bsearch. Also some constification necessitated
1126 by type-checking. Still to come: TXT_DB, bsearch(?),
1127 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
1131 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
1132 seconds to a tm structure directly, instead of going through OS
1133 specific date routines. This avoids any issues with OS routines such
1134 as the year 2038 bug. New *_adj() functions for ASN1 time structures
1135 and X509_time_adj_ex() to cover the extended range. The existing
1136 X509_time_adj() is still usable and will no longer have any date issues.
1139 *) Delta CRL support. New use deltas option which will attempt to locate
1140 and search any appropriate delta CRLs available.
1142 This work was sponsored by Google.
1145 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
1146 code and add additional score elements. Validate alternate CRL paths
1147 as part of the CRL checking and indicate a new error "CRL path validation
1148 error" in this case. Applications wanting additional details can use
1149 the verify callback and check the new "parent" field. If this is not
1150 NULL CRL path validation is taking place. Existing applications wont
1151 see this because it requires extended CRL support which is off by
1154 This work was sponsored by Google.
1157 *) Support for freshest CRL extension.
1159 This work was sponsored by Google.
1162 *) Initial indirect CRL support. Currently only supported in the CRLs
1163 passed directly and not via lookup. Process certificate issuer
1164 CRL entry extension and lookup CRL entries by bother issuer name
1165 and serial number. Check and process CRL issuer entry in IDP extension.
1167 This work was sponsored by Google.
1170 *) Add support for distinct certificate and CRL paths. The CRL issuer
1171 certificate is validated separately in this case. Only enabled if
1172 an extended CRL support flag is set: this flag will enable additional
1173 CRL functionality in future.
1175 This work was sponsored by Google.
1178 *) Add support for policy mappings extension.
1180 This work was sponsored by Google.
1183 *) Fixes to pathlength constraint, self issued certificate handling,
1184 policy processing to align with RFC3280 and PKITS tests.
1186 This work was sponsored by Google.
1189 *) Support for name constraints certificate extension. DN, email, DNS
1190 and URI types are currently supported.
1192 This work was sponsored by Google.
1195 *) To cater for systems that provide a pointer-based thread ID rather
1196 than numeric, deprecate the current numeric thread ID mechanism and
1197 replace it with a structure and associated callback type. This
1198 mechanism allows a numeric "hash" to be extracted from a thread ID in
1199 either case, and on platforms where pointers are larger than 'long',
1200 mixing is done to help ensure the numeric 'hash' is usable even if it
1201 can't be guaranteed unique. The default mechanism is to use "&errno"
1202 as a pointer-based thread ID to distinguish between threads.
1204 Applications that want to provide their own thread IDs should now use
1205 CRYPTO_THREADID_set_callback() to register a callback that will call
1206 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
1208 Note that ERR_remove_state() is now deprecated, because it is tied
1209 to the assumption that thread IDs are numeric. ERR_remove_state(0)
1210 to free the current thread's error state should be replaced by
1211 ERR_remove_thread_state(NULL).
1213 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
1214 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
1215 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
1216 application was previously providing a numeric thread callback that
1217 was inappropriate for distinguishing threads, then uniqueness might
1218 have been obtained with &errno that happened immediately in the
1219 intermediate development versions of OpenSSL; this is no longer the
1220 case, the numeric thread callback will now override the automatic use
1222 [Geoff Thorpe, with help from Bodo Moeller]
1224 *) Initial support for different CRL issuing certificates. This covers a
1225 simple case where the self issued certificates in the chain exist and
1226 the real CRL issuer is higher in the existing chain.
1228 This work was sponsored by Google.
1231 *) Removed effectively defunct crypto/store from the build.
1234 *) Revamp of STACK to provide stronger type-checking. Still to come:
1235 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
1236 ASN1_STRING, CONF_VALUE.
1239 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
1240 RAM on SSL connections. This option can save about 34k per idle SSL.
1243 *) Revamp of LHASH to provide stronger type-checking. Still to come:
1244 STACK, TXT_DB, bsearch, qsort.
1247 *) Initial support for Cryptographic Message Syntax (aka CMS) based
1248 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
1249 support for data, signedData, compressedData, digestedData and
1250 encryptedData, envelopedData types included. Scripts to check against
1251 RFC4134 examples draft and interop and consistency checks of many
1252 content types and variants.
1255 *) Add options to enc utility to support use of zlib compression BIO.
1258 *) Extend mk1mf to support importing of options and assembly language
1259 files from Configure script, currently only included in VC-WIN32.
1260 The assembly language rules can now optionally generate the source
1261 files from the associated perl scripts.
1264 *) Implement remaining functionality needed to support GOST ciphersuites.
1265 Interop testing has been performed using CryptoPro implementations.
1266 [Victor B. Wagner <vitus@cryptocom.ru>]
1268 *) s390x assembler pack.
1271 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
1275 *) Implement Opaque PRF Input TLS extension as specified in
1276 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
1277 official specification yet and no extension type assignment by
1278 IANA exists, this extension (for now) will have to be explicitly
1279 enabled when building OpenSSL by providing the extension number
1280 to use. For example, specify an option
1282 -DTLSEXT_TYPE_opaque_prf_input=0x9527
1284 to the "config" or "Configure" script to enable the extension,
1285 assuming extension number 0x9527 (which is a completely arbitrary
1286 and unofficial assignment based on the MD5 hash of the Internet
1287 Draft). Note that by doing so, you potentially lose
1288 interoperability with other TLS implementations since these might
1289 be using the same extension number for other purposes.
1291 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
1292 opaque PRF input value to use in the handshake. This will create
1293 an interal copy of the length-'len' string at 'src', and will
1294 return non-zero for success.
1296 To get more control and flexibility, provide a callback function
1299 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
1300 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
1304 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
1307 Callback function 'cb' will be called in handshakes, and is
1308 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
1309 Argument 'arg' is for application purposes (the value as given to
1310 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
1311 be provided to the callback function). The callback function
1312 has to return non-zero to report success: usually 1 to use opaque
1313 PRF input just if possible, or 2 to enforce use of the opaque PRF
1314 input. In the latter case, the library will abort the handshake
1315 if opaque PRF input is not successfully negotiated.
1317 Arguments 'peerinput' and 'len' given to the callback function
1318 will always be NULL and 0 in the case of a client. A server will
1319 see the client's opaque PRF input through these variables if
1320 available (NULL and 0 otherwise). Note that if the server
1321 provides an opaque PRF input, the length must be the same as the
1322 length of the client's opaque PRF input.
1324 Note that the callback function will only be called when creating
1325 a new session (session resumption can resume whatever was
1326 previously negotiated), and will not be called in SSL 2.0
1327 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
1328 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
1329 for applications that need to enforce opaque PRF input.
1333 *) Update ssl code to support digests other than SHA1+MD5 for handshake
1336 [Victor B. Wagner <vitus@cryptocom.ru>]
1338 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1339 RFC4507bis. The encrypted ticket format is an encrypted encoded
1340 SSL_SESSION structure, that way new session features are automatically
1343 If a client application caches session in an SSL_SESSION structure
1344 support is transparent because tickets are now stored in the encoded
1347 The SSL_CTX structure automatically generates keys for ticket
1348 protection in servers so again support should be possible
1349 with no application modification.
1351 If a client or server wishes to disable RFC4507 support then the option
1352 SSL_OP_NO_TICKET can be set.
1354 Add a TLS extension debugging callback to allow the contents of any client
1355 or server extensions to be examined.
1357 This work was sponsored by Google.
1360 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
1361 OpenSSL should now compile cleanly on gcc 4.2
1362 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
1364 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
1365 support including streaming MAC support: this is required for GOST
1366 ciphersuite support.
1367 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
1369 *) Add option -stream to use PKCS#7 streaming in smime utility. New
1370 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
1371 to output in BER and PEM format.
1374 *) Experimental support for use of HMAC via EVP_PKEY interface. This
1375 allows HMAC to be handled via the EVP_DigestSign*() interface. The
1376 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
1377 ENGINE support for HMAC keys which are unextractable. New -mac and
1378 -macopt options to dgst utility.
1381 *) New option -sigopt to dgst utility. Update dgst to use
1382 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
1383 alternative signing paramaters such as X9.31 or PSS in the dgst
1387 *) Change ssl_cipher_apply_rule(), the internal function that does
1388 the work each time a ciphersuite string requests enabling
1389 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
1390 removing ("!foo+bar") a class of ciphersuites: Now it maintains
1391 the order of disabled ciphersuites such that those ciphersuites
1392 that most recently went from enabled to disabled not only stay
1393 in order with respect to each other, but also have higher priority
1394 than other disabled ciphersuites the next time ciphersuites are
1397 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
1398 the same ciphersuites as with "HIGH" alone, but in a specific
1399 order where the PSK ciphersuites come first (since they are the
1400 most recently disabled ciphersuites when "HIGH" is parsed).
1402 Also, change ssl_create_cipher_list() (using this new
1403 funcionality) such that between otherwise identical
1404 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
1408 *) Change ssl_create_cipher_list() so that it automatically
1409 arranges the ciphersuites in reasonable order before starting
1410 to process the rule string. Thus, the definition for "DEFAULT"
1411 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
1412 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
1413 This makes it much easier to arrive at a reasonable default order
1414 in applications for which anonymous ciphers are OK (meaning
1415 that you can't actually use DEFAULT).
1416 [Bodo Moeller; suggested by Victor Duchovni]
1418 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
1419 processing) into multiple integers instead of setting
1420 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
1421 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
1422 (These masks as well as the individual bit definitions are hidden
1423 away into the non-exported interface ssl/ssl_locl.h, so this
1424 change to the definition of the SSL_CIPHER structure shouldn't
1425 affect applications.) This give us more bits for each of these
1426 categories, so there is no longer a need to coagulate AES128 and
1427 AES256 into a single algorithm bit, and to coagulate Camellia128
1428 and Camellia256 into a single algorithm bit, which has led to all
1431 Thus, among other things, the kludge introduced in 0.9.7m and
1432 0.9.8e for masking out AES256 independently of AES128 or masking
1433 out Camellia256 independently of AES256 is not needed here in 0.9.9.
1435 With the change, we also introduce new ciphersuite aliases that
1436 so far were missing: "AES128", "AES256", "CAMELLIA128", and
1440 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
1441 Use the leftmost N bytes of the signature input if the input is
1442 larger than the prime q (with N being the size in bytes of q).
1445 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
1446 it yet and it is largely untested.
1449 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
1452 *) Initial incomplete changes to avoid need for function casts in OpenSSL
1453 some compilers (gcc 4.2 and later) reject their use. Safestack is
1454 reimplemented. Update ASN1 to avoid use of legacy functions.
1457 *) Win32/64 targets are linked with Winsock2.
1460 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
1461 to external functions. This can be used to increase CRL handling
1462 efficiency especially when CRLs are very large by (for example) storing
1463 the CRL revoked certificates in a database.
1466 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
1467 new CRLs added to a directory can be used. New command line option
1468 -verify_return_error to s_client and s_server. This causes real errors
1469 to be returned by the verify callback instead of carrying on no matter
1470 what. This reflects the way a "real world" verify callback would behave.
1473 *) GOST engine, supporting several GOST algorithms and public key formats.
1474 Kindly donated by Cryptocom.
1477 *) Partial support for Issuing Distribution Point CRL extension. CRLs
1478 partitioned by DP are handled but no indirect CRL or reason partitioning
1479 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
1480 selected via a scoring technique which handles IDP and AKID in CRLs.
1483 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
1484 will ultimately be used for all verify operations: this will remove the
1485 X509_STORE dependency on certificate verification and allow alternative
1486 lookup methods. X509_STORE based implementations of these two callbacks.
1489 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
1490 Modify get_crl() to find a valid (unexpired) CRL if possible.
1493 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
1494 this would be called X509_CRL_cmp() but that name is already used by
1495 a function that just compares CRL issuer names. Cache several CRL
1496 extensions in X509_CRL structure and cache CRLDP in X509.
1499 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
1500 this maps equivalent X509_NAME structures into a consistent structure.
1501 Name comparison can then be performed rapidly using memcmp().
1504 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
1508 *) Allow digests to supply their own micalg string for S/MIME type using
1509 the ctrl EVP_MD_CTRL_MICALG.
1512 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
1513 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
1514 ctrl. It can then customise the structure before and/or after signing
1518 *) New function OBJ_add_sigid() to allow application defined signature OIDs
1519 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
1520 to free up any added signature OIDs.
1523 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
1524 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
1525 digest and cipher tables. New options added to openssl utility:
1526 list-message-digest-algorithms and list-cipher-algorithms.
1529 *) Change the array representation of binary polynomials: the list
1530 of degrees of non-zero coefficients is now terminated with -1.
1531 Previously it was terminated with 0, which was also part of the
1532 value; thus, the array representation was not applicable to
1533 polynomials where t^0 has coefficient zero. This change makes
1534 the array representation useful in a more general context.
1537 *) Various modifications and fixes to SSL/TLS cipher string
1538 handling. For ECC, the code now distinguishes between fixed ECDH
1539 with RSA certificates on the one hand and with ECDSA certificates
1540 on the other hand, since these are separate ciphersuites. The
1541 unused code for Fortezza ciphersuites has been removed.
1543 For consistency with EDH, ephemeral ECDH is now called "EECDH"
1544 (not "ECDHE"). For consistency with the code for DH
1545 certificates, use of ECDH certificates is now considered ECDH
1546 authentication, not RSA or ECDSA authentication (the latter is
1547 merely the CA's signing algorithm and not actively used in the
1550 The temporary ciphersuite alias "ECCdraft" is no longer
1551 available, and ECC ciphersuites are no longer excluded from "ALL"
1552 and "DEFAULT". The following aliases now exist for RFC 4492
1553 ciphersuites, most of these by analogy with the DH case:
1555 kECDHr - ECDH cert, signed with RSA
1556 kECDHe - ECDH cert, signed with ECDSA
1557 kECDH - ECDH cert (signed with either RSA or ECDSA)
1558 kEECDH - ephemeral ECDH
1559 ECDH - ECDH cert or ephemeral ECDH
1565 AECDH - anonymous ECDH
1566 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
1570 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
1571 Use correct micalg parameters depending on digest(s) in signed message.
1574 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
1575 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
1578 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
1579 an engine to register a method. Add ENGINE lookups for methods and
1580 functional reference processing.
1583 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
1584 EVP_{Sign,Verify}* which allow an application to customise the signature
1588 *) New -resign option to smime utility. This adds one or more signers
1589 to an existing PKCS#7 signedData structure. Also -md option to use an
1590 alternative message digest algorithm for signing.
1593 *) Tidy up PKCS#7 routines and add new functions to make it easier to
1594 create PKCS7 structures containing multiple signers. Update smime
1595 application to support multiple signers.
1598 *) New -macalg option to pkcs12 utility to allow setting of an alternative
1602 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
1603 Reorganize PBE internals to lookup from a static table using NIDs,
1604 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
1605 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
1606 PRF which will be automatically used with PBES2.
1609 *) Replace the algorithm specific calls to generate keys in "req" with the
1613 *) Update PKCS#7 enveloped data routines to use new API. This is now
1614 supported by any public key method supporting the encrypt operation. A
1615 ctrl is added to allow the public key algorithm to examine or modify
1616 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
1620 *) Add a ctrl to asn1 method to allow a public key algorithm to express
1621 a default digest type to use. In most cases this will be SHA1 but some
1622 algorithms (such as GOST) need to specify an alternative digest. The
1623 return value indicates how strong the prefernce is 1 means optional and
1624 2 is mandatory (that is it is the only supported type). Modify
1625 ASN1_item_sign() to accept a NULL digest argument to indicate it should
1626 use the default md. Update openssl utilities to use the default digest
1627 type for signing if it is not explicitly indicated.
1630 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
1631 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
1632 signing method from the key type. This effectively removes the link
1633 between digests and public key types.
1636 *) Add an OID cross reference table and utility functions. Its purpose is to
1637 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1638 rsaEncryption. This will allow some of the algorithm specific hackery
1639 needed to use the correct OID to be removed.
1642 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1643 structures for PKCS7_sign(). They are now set up by the relevant public
1647 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1650 *) Add support for key derivation (agreement) in the API, DH method and
1654 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1655 public and private key formats. As a side effect these add additional
1656 command line functionality not previously available: DSA signatures can be
1657 generated and verified using pkeyutl and DH key support and generation in
1662 [Oliver Tappe <zooey@hirschkaefer.de>]
1664 *) New make target "install_html_docs" installs HTML renditions of the
1666 [Oliver Tappe <zooey@hirschkaefer.de>]
1668 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1669 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1670 support key and parameter generation and add initial key generation
1671 functionality for RSA.
1674 *) Add functions for main EVP_PKEY_method operations. The undocumented
1675 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1676 EVP_PKEY_{encrypt,decrypt}_old.
1679 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1680 key API, doesn't do much yet.
1683 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1684 public key algorithms. New option to openssl utility:
1685 "list-public-key-algorithms" to print out info.
1688 *) Implement the Supported Elliptic Curves Extension for
1689 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1692 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1693 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1696 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1697 utilities such as rsa, dsa, dsaparam etc except they process any key
1701 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1702 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1703 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1707 *) Initial support for pluggable public key ASN1.
1708 De-spaghettify the public key ASN1 handling. Move public and private
1709 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1710 algorithm specific handling to a single module within the relevant
1711 algorithm directory. Add functions to allow (near) opaque processing
1712 of public and private key structures.
1715 *) Implement the Supported Point Formats Extension for
1716 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1719 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1720 for the psk identity [hint] and the psk callback functions to the
1721 SSL_SESSION, SSL and SSL_CTX structure.
1724 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1728 SSL_CTX_use_psk_identity_hint
1729 SSL_get_psk_identity_hint
1730 SSL_get_psk_identity
1731 SSL_use_psk_identity_hint
1733 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1735 *) Add RFC 3161 compliant time stamp request creation, response generation
1736 and response verification functionality.
1737 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1739 *) Add initial support for TLS extensions, specifically for the server_name
1740 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1741 have new members for a host name. The SSL data structure has an
1742 additional member SSL_CTX *initial_ctx so that new sessions can be
1743 stored in that context to allow for session resumption, even after the
1744 SSL has been switched to a new SSL_CTX in reaction to a client's
1745 server_name extension.
1747 New functions (subject to change):
1749 SSL_get_servername()
1750 SSL_get_servername_type()
1753 New CTRL codes and macros (subject to change):
1755 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1756 - SSL_CTX_set_tlsext_servername_callback()
1757 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1758 - SSL_CTX_set_tlsext_servername_arg()
1759 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1761 openssl s_client has a new '-servername ...' option.
1763 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1764 '-key2 ...', '-servername_fatal' (subject to change). This allows
1765 testing the HostName extension for a specific single host name ('-cert'
1766 and '-key' remain fallbacks for handshakes without HostName
1767 negotiation). If the unrecogninzed_name alert has to be sent, this by
1768 default is a warning; it becomes fatal with the '-servername_fatal'
1771 [Peter Sylvester, Remy Allais, Christophe Renou]
1773 *) Whirlpool hash implementation is added.
1776 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1777 bn(64,32). Because of instruction set limitations it doesn't have
1778 any negative impact on performance. This was done mostly in order
1779 to make it possible to share assembler modules, such as bn_mul_mont
1780 implementations, between 32- and 64-bit builds without hassle.
1783 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1784 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1788 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1789 dedicated Montgomery multiplication procedure, is introduced.
1790 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1791 "64-bit" performance on certain 32-bit targets.
1794 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1795 in SSL structures. New SSL ctrl to set maximum send fragment size.
1796 Save memory by seeting the I/O buffer sizes dynamically instead of
1797 using the maximum available value.
1800 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1801 in addition to the text details.
1804 *) Very, very preliminary EXPERIMENTAL support for printing of general
1805 ASN1 structures. This currently produces rather ugly output and doesn't
1806 handle several customised structures at all.
1809 *) Integrated support for PVK file format and some related formats such
1810 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1811 these in the 'rsa' and 'dsa' utilities.
1814 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1817 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1818 place for the (very old) "NETSCAPE" format certificates which are now
1819 handled using new ASN1 code equivalents.
1822 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1823 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1824 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1827 *) Modify CRL distribution points extension code to print out previously
1828 unsupported fields. Enhance extension setting code to allow setting of
1832 *) Add print and set support for Issuing Distribution Point CRL extension.
1835 *) Change 'Configure' script to enable Camellia by default.
1838 Changes between 0.9.8s and 0.9.8t [18 Jan 2012]
1840 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
1841 Thanks to Antonio Martin, Enterprise Secure Access Research and
1842 Development, Cisco Systems, Inc. for discovering this bug and
1843 preparing a fix. (CVE-2012-0050)
1846 Changes between 0.9.8r and 0.9.8s [4 Jan 2012]
1848 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
1849 of the Vaudenay padding oracle attack on CBC mode encryption
1850 which enables an efficient plaintext recovery attack against
1851 the OpenSSL implementation of DTLS. Their attack exploits timing
1852 differences arising during decryption processing. A research
1853 paper describing this attack can be found at:
1854 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
1855 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1856 Security Group at Royal Holloway, University of London
1857 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
1858 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
1859 for preparing the fix. (CVE-2011-4108)
1860 [Robin Seggelmann, Michael Tuexen]
1862 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109)
1863 [Ben Laurie, Kasper <ekasper@google.com>]
1865 *) Clear bytes used for block padding of SSL 3.0 records.
1867 [Adam Langley (Google)]
1869 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
1870 Kadianakis <desnacked@gmail.com> for discovering this issue and
1871 Adam Langley for preparing the fix. (CVE-2011-4619)
1872 [Adam Langley (Google)]
1874 *) Prevent malformed RFC3779 data triggering an assertion failure.
1875 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
1876 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
1877 [Rob Austein <sra@hactrn.net>]
1879 *) Fix ssl_ciph.c set-up race.
1880 [Adam Langley (Google)]
1882 *) Fix spurious failures in ecdsatest.c.
1883 [Emilia Käsper (Google)]
1885 *) Fix the BIO_f_buffer() implementation (which was mixing different
1886 interpretations of the '..._len' fields).
1887 [Adam Langley (Google)]
1889 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1890 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1891 threads won't reuse the same blinding coefficients.
1893 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1894 lock to call BN_BLINDING_invert_ex, and avoids one use of
1895 BN_BLINDING_update for each BN_BLINDING structure (previously,
1896 the last update always remained unused).
1897 [Emilia Käsper (Google)]
1899 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1900 for multi-threaded use of ECDH.
1901 [Adam Langley (Google)]
1903 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1906 *) Add protection against ECDSA timing attacks as mentioned in the paper
1907 by Billy Bob Brumley and Nicola Tuveri, see:
1909 http://eprint.iacr.org/2011/232.pdf
1911 [Billy Bob Brumley and Nicola Tuveri]
1913 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1915 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1916 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1918 *) Fix bug in string printing code: if *any* escaping is enabled we must
1919 escape the escape character (backslash) or the resulting string is
1923 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1925 *) Disable code workaround for ancient and obsolete Netscape browsers
1926 and servers: an attacker can use it in a ciphersuite downgrade attack.
1927 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1930 *) Fixed J-PAKE implementation error, originally discovered by
1931 Sebastien Martini, further info and confirmation from Stefan
1932 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1935 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1937 *) Fix extension code to avoid race conditions which can result in a buffer
1938 overrun vulnerability: resumed sessions must not be modified as they can
1939 be shared by multiple threads. CVE-2010-3864
1942 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1945 *) Don't reencode certificate when calculating signature: cache and use
1946 the original encoding instead. This makes signature verification of
1947 some broken encodings work correctly.
1950 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1951 is also one of the inputs.
1952 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1954 *) Don't repeatedly append PBE algorithms to table if they already exist.
1955 Sort table on each new add. This effectively makes the table read only
1956 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1960 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1962 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1965 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1966 access or freeing data twice (CVE-2010-0742)
1967 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1969 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1970 common in certificates and some applications which only call
1971 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1975 Reduce copying into .apps and .test in makevms.com
1976 Don't try to use blank CA certificate in CA.com
1977 Allow use of C files from original directories in maketests.com
1978 [Steven M. Schweda" <sms@antinode.info>]
1980 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1982 *) When rejecting SSL/TLS records due to an incorrect version number, never
1983 update s->server with a new major version number. As of
1984 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1985 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1986 the previous behavior could result in a read attempt at NULL when
1987 receiving specific incorrect SSL/TLS records once record payload
1988 protection is active. (CVE-2010-0740)
1989 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1991 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1992 could be crashed if the relevant tables were not present (e.g. chrooted).
1993 [Tomas Hoger <thoger@redhat.com>]
1995 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1997 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1998 [Martin Olsson, Neel Mehta]
2000 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
2001 accommodate for stack sorting, always a write lock!).
2004 *) On some versions of WIN32 Heap32Next is very slow. This can cause
2005 excessive delays in the RAND_poll(): over a minute. As a workaround
2006 include a time check in the inner Heap32Next loop too.
2009 *) The code that handled flushing of data in SSL/TLS originally used the
2010 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
2011 the problem outlined in PR#1949. The fix suggested there however can
2012 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
2013 of Apache). So instead simplify the code to flush unconditionally.
2014 This should be fine since flushing with no data to flush is a no op.
2017 *) Handle TLS versions 2.0 and later properly and correctly use the
2018 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
2019 off ancient servers have a habit of sticking around for a while...
2022 *) Modify compression code so it frees up structures without using the
2023 ex_data callbacks. This works around a problem where some applications
2024 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
2025 restarting) then use compression (e.g. SSL with compression) later.
2026 This results in significant per-connection memory leaks and
2027 has caused some security issues including CVE-2008-1678 and
2031 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
2032 change when encrypting or decrypting.
2035 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
2036 connect and renegotiate with servers which do not support RI.
2037 Until RI is more widely deployed this option is enabled by default.
2040 *) Add "missing" ssl ctrls to clear options and mode.
2043 *) If client attempts to renegotiate and doesn't support RI respond with
2044 a no_renegotiation alert as required by RFC5746. Some renegotiating
2045 TLS clients will continue a connection gracefully when they receive
2046 the alert. Unfortunately OpenSSL mishandled this alert and would hang
2047 waiting for a server hello which it will never receive. Now we treat a
2048 received no_renegotiation alert as a fatal error. This is because
2049 applications requesting a renegotiation might well expect it to succeed
2050 and would have no code in place to handle the server denying it so the
2051 only safe thing to do is to terminate the connection.
2054 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
2055 peer supports secure renegotiation and 0 otherwise. Print out peer
2056 renegotiation support in s_client/s_server.
2059 *) Replace the highly broken and deprecated SPKAC certification method with
2060 the updated NID creation version. This should correctly handle UTF8.
2063 *) Implement RFC5746. Re-enable renegotiation but require the extension
2064 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
2065 turns out to be a bad idea. It has been replaced by
2066 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
2067 SSL_CTX_set_options(). This is really not recommended unless you
2068 know what you are doing.
2069 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
2071 *) Fixes to stateless session resumption handling. Use initial_ctx when
2072 issuing and attempting to decrypt tickets in case it has changed during
2073 servername handling. Use a non-zero length session ID when attempting
2074 stateless session resumption: this makes it possible to determine if
2075 a resumption has occurred immediately after receiving server hello
2076 (several places in OpenSSL subtly assume this) instead of later in
2080 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
2081 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
2082 fixes for a few places where the return code is not checked
2084 [Julia Lawall <julia@diku.dk>]
2086 *) Add --strict-warnings option to Configure script to include devteam
2087 warnings in other configurations.
2090 *) Add support for --libdir option and LIBDIR variable in makefiles. This
2091 makes it possible to install openssl libraries in locations which
2092 have names other than "lib", for example "/usr/lib64" which some
2094 [Steve Henson, based on patch from Jeremy Utley]
2096 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
2097 X690 8.9.12 and can produce some misleading textual output of OIDs.
2098 [Steve Henson, reported by Dan Kaminsky]
2100 *) Delete MD2 from algorithm tables. This follows the recommendation in
2101 several standards that it is not used in new applications due to
2102 several cryptographic weaknesses. For binary compatibility reasons
2103 the MD2 API is still compiled in by default.
2106 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
2110 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
2111 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
2113 [Guenter <lists@gknw.net>]
2115 *) Fix the server certificate chain building code to use X509_verify_cert(),
2116 it used to have an ad-hoc builder which was unable to cope with anything
2117 other than a simple chain.
2118 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
2120 *) Don't check self signed certificate signatures in X509_verify_cert()
2121 by default (a flag can override this): it just wastes time without
2122 adding any security. As a useful side effect self signed root CAs
2123 with non-FIPS digests are now usable in FIPS mode.
2126 *) In dtls1_process_out_of_seq_message() the check if the current message
2127 is already buffered was missing. For every new message was memory
2128 allocated, allowing an attacker to perform an denial of service attack
2129 with sending out of seq handshake messages until there is no memory
2130 left. Additionally every future messege was buffered, even if the
2131 sequence number made no sense and would be part of another handshake.
2132 So only messages with sequence numbers less than 10 in advance will be
2133 buffered. (CVE-2009-1378)
2134 [Robin Seggelmann, discovered by Daniel Mentz]
2136 *) Records are buffered if they arrive with a future epoch to be
2137 processed after finishing the corresponding handshake. There is
2138 currently no limitation to this buffer allowing an attacker to perform
2139 a DOS attack with sending records with future epochs until there is no
2140 memory left. This patch adds the pqueue_size() function to detemine
2141 the size of a buffer and limits the record buffer to 100 entries.
2143 [Robin Seggelmann, discovered by Daniel Mentz]
2145 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
2146 parent structure is freed. (CVE-2009-1379)
2149 *) Handle non-blocking I/O properly in SSL_shutdown() call.
2150 [Darryl Miles <darryl-mailinglists@netbauds.net>]
2153 [Ilya O. <vrghost@gmail.com>]
2155 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
2157 *) Disable renegotiation completely - this fixes a severe security
2158 problem (CVE-2009-3555) at the cost of breaking all
2159 renegotiation. Renegotiation can be re-enabled by setting
2160 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
2161 run-time. This is really not recommended unless you know what
2165 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
2167 *) Don't set val to NULL when freeing up structures, it is freed up by
2168 underlying code. If sizeof(void *) > sizeof(long) this can result in
2169 zeroing past the valid field. (CVE-2009-0789)
2170 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
2172 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
2173 checked correctly. This would allow some invalid signed attributes to
2174 appear to verify correctly. (CVE-2009-0591)
2175 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2177 *) Reject UniversalString and BMPString types with invalid lengths. This
2178 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
2179 a legal length. (CVE-2009-0590)
2182 *) Set S/MIME signing as the default purpose rather than setting it
2183 unconditionally. This allows applications to override it at the store
2187 *) Permit restricted recursion of ASN1 strings. This is needed in practice
2188 to handle some structures.
2191 *) Improve efficiency of mem_gets: don't search whole buffer each time
2193 [Jeremy Shapiro <jnshapir@us.ibm.com>]
2195 *) New -hex option for openssl rand.
2198 *) Print out UTF8String and NumericString when parsing ASN1.
2201 *) Support NumericString type for name components.
2204 *) Allow CC in the environment to override the automatically chosen
2205 compiler. Note that nothing is done to ensure flags work with the
2209 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
2211 *) Properly check EVP_VerifyFinal() and similar return values
2213 [Ben Laurie, Bodo Moeller, Google Security Team]
2215 *) Enable TLS extensions by default.
2218 *) Allow the CHIL engine to be loaded, whether the application is
2219 multithreaded or not. (This does not release the developer from the
2220 obligation to set up the dynamic locking callbacks.)
2221 [Sander Temme <sander@temme.net>]
2223 *) Use correct exit code if there is an error in dgst command.
2224 [Steve Henson; problem pointed out by Roland Dirlewanger]
2226 *) Tweak Configure so that you need to say "experimental-jpake" to enable
2227 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
2230 *) Add experimental JPAKE support, including demo authentication in
2231 s_client and s_server.
2234 *) Set the comparison function in v3_addr_canonize().
2235 [Rob Austein <sra@hactrn.net>]
2237 *) Add support for XMPP STARTTLS in s_client.
2238 [Philip Paeps <philip@freebsd.org>]
2240 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
2241 to ensure that even with this option, only ciphersuites in the
2242 server's preference list will be accepted. (Note that the option
2243 applies only when resuming a session, so the earlier behavior was
2244 just about the algorithm choice for symmetric cryptography.)
2247 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
2249 *) Fix NULL pointer dereference if a DTLS server received
2250 ChangeCipherSpec as first record (CVE-2009-1386).
2253 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
2254 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
2257 *) The fix in 0.9.8c that supposedly got rid of unsafe
2258 double-checked locking was incomplete for RSA blinding,
2259 addressing just one layer of what turns out to have been
2260 doubly unsafe triple-checked locking.
2262 So now fix this for real by retiring the MONT_HELPER macro
2263 in crypto/rsa/rsa_eay.c.
2265 [Bodo Moeller; problem pointed out by Marius Schilder]
2267 *) Various precautionary measures:
2269 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
2271 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
2272 (NB: This would require knowledge of the secret session ticket key
2273 to exploit, in which case you'd be SOL either way.)
2275 - Change bn_nist.c so that it will properly handle input BIGNUMs
2276 outside the expected range.
2278 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
2281 [Neel Mehta, Bodo Moeller]
2283 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
2284 the load fails. Useful for distros.
2285 [Ben Laurie and the FreeBSD team]
2287 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
2290 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
2293 *) Expand ENGINE to support engine supplied SSL client certificate functions.
2295 This work was sponsored by Logica.
2298 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
2299 keystores. Support for SSL/TLS client authentication too.
2300 Not compiled unless enable-capieng specified to Configure.
2302 This work was sponsored by Logica.
2305 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
2306 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
2307 attribute creation routines such as certifcate requests and PKCS#12
2311 Changes between 0.9.8g and 0.9.8h [28 May 2008]
2313 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
2314 handshake which could lead to a cilent crash as found using the
2315 Codenomicon TLS test suite (CVE-2008-1672)
2316 [Steve Henson, Mark Cox]
2318 *) Fix double free in TLS server name extensions which could lead to
2319 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
2322 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
2324 Clear the error queue to ensure that error entries left from
2325 older function calls do not interfere with the correct operation.
2326 [Lutz Jaenicke, Erik de Castro Lopo]
2328 *) Remove root CA certificates of commercial CAs:
2330 The OpenSSL project does not recommend any specific CA and does not
2331 have any policy with respect to including or excluding any CA.
2332 Therefore it does not make any sense to ship an arbitrary selection
2333 of root CA certificates with the OpenSSL software.
2336 *) RSA OAEP patches to fix two separate invalid memory reads.
2337 The first one involves inputs when 'lzero' is greater than
2338 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
2339 before the beginning of from). The second one involves inputs where
2340 the 'db' section contains nothing but zeroes (there is a one-byte
2341 invalid read after the end of 'db').
2342 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2344 *) Partial backport from 0.9.9-dev:
2346 Introduce bn_mul_mont (dedicated Montgomery multiplication
2347 procedure) as a candidate for BIGNUM assembler implementation.
2348 While 0.9.9-dev uses assembler for various architectures, only
2349 x86_64 is available by default here in the 0.9.8 branch, and
2350 32-bit x86 is available through a compile-time setting.
2352 To try the 32-bit x86 assembler implementation, use Configure
2353 option "enable-montasm" (which exists only for this backport).
2355 As "enable-montasm" for 32-bit x86 disclaims code stability
2356 anyway, in this constellation we activate additional code
2357 backported from 0.9.9-dev for further performance improvements,
2358 namely BN_from_montgomery_word. (To enable this otherwise,
2359 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
2361 [Andy Polyakov (backport partially by Bodo Moeller)]
2363 *) Add TLS session ticket callback. This allows an application to set
2364 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
2365 values. This is useful for key rollover for example where several key
2366 sets may exist with different names.
2369 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
2370 This was broken until now in 0.9.8 releases, such that the only way
2371 a registered ENGINE could be used (assuming it initialises
2372 successfully on the host) was to explicitly set it as the default
2373 for the relevant algorithms. This is in contradiction with 0.9.7
2374 behaviour and the documentation. With this fix, when an ENGINE is
2375 registered into a given algorithm's table of implementations, the
2376 'uptodate' flag is reset so that auto-discovery will be used next
2377 time a new context for that algorithm attempts to select an
2379 [Ian Lister (tweaked by Geoff Thorpe)]
2381 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
2382 implemention in the following ways:
2384 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
2387 Lack of BER streaming support means one pass streaming processing is
2388 only supported if data is detached: setting the streaming flag is
2389 ignored for embedded content.
2391 CMS support is disabled by default and must be explicitly enabled
2392 with the enable-cms configuration option.
2395 *) Update the GMP engine glue to do direct copies between BIGNUM and
2396 mpz_t when openssl and GMP use the same limb size. Otherwise the
2397 existing "conversion via a text string export" trick is still used.
2398 [Paul Sheer <paulsheer@gmail.com>]
2400 *) Zlib compression BIO. This is a filter BIO which compressed and
2401 uncompresses any data passed through it.
2404 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
2405 RFC3394 compatible AES key wrapping.
2408 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
2409 sets string data without copying. X509_ALGOR_set0() and
2410 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
2411 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
2412 from an X509_ATTRIBUTE structure optionally checking it occurs only
2413 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
2417 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
2418 to get the expected BN_FLG_CONSTTIME behavior.
2419 [Bodo Moeller (Google)]
2423 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
2424 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
2425 - added some more tests to do_tests.pl
2426 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
2427 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
2428 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
2429 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
2430 - various changes to netware.pl to enable gcc-cross builds on Win32
2432 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
2433 - various changes to fix missing prototype warnings
2434 - fixed x86nasm.pl to create correct asm files for NASM COFF output
2435 - added AES, WHIRLPOOL and CPUID assembler code to build files
2436 - added missing AES assembler make rules to mk1mf.pl
2437 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
2438 [Guenter Knauf <eflash@gmx.net>]
2440 *) Implement certificate status request TLS extension defined in RFC3546.
2441 A client can set the appropriate parameters and receive the encoded
2442 OCSP response via a callback. A server can query the supplied parameters
2443 and set the encoded OCSP response in the callback. Add simplified examples
2444 to s_client and s_server.
2447 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
2449 *) Fix various bugs:
2450 + Binary incompatibility of ssl_ctx_st structure
2451 + DTLS interoperation with non-compliant servers
2452 + Don't call get_session_cb() without proposed session
2453 + Fix ia64 assembler code
2454 [Andy Polyakov, Steve Henson]
2456 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
2458 *) DTLS Handshake overhaul. There were longstanding issues with
2459 OpenSSL DTLS implementation, which were making it impossible for
2460 RFC 4347 compliant client to communicate with OpenSSL server.
2461 Unfortunately just fixing these incompatibilities would "cut off"
2462 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
2463 server keeps tolerating non RFC compliant syntax. The opposite is
2464 not true, 0.9.8f client can not communicate with earlier server.
2465 This update even addresses CVE-2007-4995.
2468 *) Changes to avoid need for function casts in OpenSSL: some compilers
2469 (gcc 4.2 and later) reject their use.
2470 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
2473 *) Add RFC4507 support to OpenSSL. This includes the corrections in
2474 RFC4507bis. The encrypted ticket format is an encrypted encoded
2475 SSL_SESSION structure, that way new session features are automatically
2478 If a client application caches session in an SSL_SESSION structure
2479 support is transparent because tickets are now stored in the encoded
2482 The SSL_CTX structure automatically generates keys for ticket
2483 protection in servers so again support should be possible
2484 with no application modification.
2486 If a client or server wishes to disable RFC4507 support then the option
2487 SSL_OP_NO_TICKET can be set.
2489 Add a TLS extension debugging callback to allow the contents of any client
2490 or server extensions to be examined.
2492 This work was sponsored by Google.
2495 *) Add initial support for TLS extensions, specifically for the server_name
2496 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
2497 have new members for a host name. The SSL data structure has an
2498 additional member SSL_CTX *initial_ctx so that new sessions can be
2499 stored in that context to allow for session resumption, even after the
2500 SSL has been switched to a new SSL_CTX in reaction to a client's
2501 server_name extension.
2503 New functions (subject to change):
2505 SSL_get_servername()
2506 SSL_get_servername_type()
2509 New CTRL codes and macros (subject to change):
2511 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2512 - SSL_CTX_set_tlsext_servername_callback()
2513 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
2514 - SSL_CTX_set_tlsext_servername_arg()
2515 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
2517 openssl s_client has a new '-servername ...' option.
2519 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2520 '-key2 ...', '-servername_fatal' (subject to change). This allows
2521 testing the HostName extension for a specific single host name ('-cert'
2522 and '-key' remain fallbacks for handshakes without HostName
2523 negotiation). If the unrecogninzed_name alert has to be sent, this by
2524 default is a warning; it becomes fatal with the '-servername_fatal'
2527 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
2529 *) Add AES and SSE2 assembly language support to VC++ build.
2532 *) Mitigate attack on final subtraction in Montgomery reduction.
2535 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
2536 (which previously caused an internal error).
2539 *) Squeeze another 10% out of IGE mode when in != out.
2542 *) AES IGE mode speedup.
2543 [Dean Gaudet (Google)]
2545 *) Add the Korean symmetric 128-bit cipher SEED (see
2546 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
2547 add SEED ciphersuites from RFC 4162:
2549 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
2550 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
2551 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
2552 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
2554 To minimize changes between patchlevels in the OpenSSL 0.9.8
2555 series, SEED remains excluded from compilation unless OpenSSL
2556 is configured with 'enable-seed'.
2557 [KISA, Bodo Moeller]
2559 *) Mitigate branch prediction attacks, which can be practical if a
2560 single processor is shared, allowing a spy process to extract
2561 information. For detailed background information, see
2562 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
2563 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
2564 and Necessary Software Countermeasures"). The core of the change
2565 are new versions BN_div_no_branch() and
2566 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
2567 respectively, which are slower, but avoid the security-relevant
2568 conditional branches. These are automatically called by BN_div()
2569 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
2570 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
2571 remove a conditional branch.
2573 BN_FLG_CONSTTIME is the new name for the previous
2574 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
2575 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
2576 in the exponent causes BN_mod_exp_mont() to use the alternative
2577 implementation in BN_mod_exp_mont_consttime().) The old name
2578 remains as a deprecated alias.
2580 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
2581 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
2582 constant-time implementations for more than just exponentiation.
2583 Here too the old name is kept as a deprecated alias.
2585 BN_BLINDING_new() will now use BN_dup() for the modulus so that
2586 the BN_BLINDING structure gets an independent copy of the
2587 modulus. This means that the previous "BIGNUM *m" argument to
2588 BN_BLINDING_new() and to BN_BLINDING_create_param() now
2589 essentially becomes "const BIGNUM *m", although we can't actually
2590 change this in the header file before 0.9.9. It allows
2591 RSA_setup_blinding() to use BN_with_flags() on the modulus to
2592 enable BN_FLG_CONSTTIME.
2594 [Matthew D Wood (Intel Corp)]
2596 *) In the SSL/TLS server implementation, be strict about session ID
2597 context matching (which matters if an application uses a single
2598 external cache for different purposes). Previously,
2599 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2600 set. This did ensure strict client verification, but meant that,
2601 with applications using a single external cache for quite
2602 different requirements, clients could circumvent ciphersuite
2603 restrictions for a given session ID context by starting a session
2604 in a different context.
2607 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2608 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2609 authentication-only ciphersuites.
2612 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
2613 not complete and could lead to a possible single byte overflow
2614 (CVE-2007-5135) [Ben Laurie]
2616 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
2618 *) Since AES128 and AES256 (and similarly Camellia128 and
2619 Camellia256) share a single mask bit in the logic of
2620 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2621 kludge to work properly if AES128 is available and AES256 isn't
2622 (or if Camellia128 is available and Camellia256 isn't).
2625 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
2626 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
2627 When a point or a seed is encoded in a BIT STRING, we need to
2628 prevent the removal of trailing zero bits to get the proper DER
2629 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
2630 of a NamedBitList, for which trailing 0 bits need to be removed.)
2633 *) Have SSL/TLS server implementation tolerate "mismatched" record
2634 protocol version while receiving ClientHello even if the
2635 ClientHello is fragmented. (The server can't insist on the
2636 particular protocol version it has chosen before the ServerHello
2637 message has informed the client about his choice.)
2640 *) Add RFC 3779 support.
2641 [Rob Austein for ARIN, Ben Laurie]
2643 *) Load error codes if they are not already present instead of using a
2644 static variable. This allows them to be cleanly unloaded and reloaded.
2645 Improve header file function name parsing.
2648 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
2649 or CAPABILITY handshake as required by RFCs.
2652 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
2654 *) Introduce limits to prevent malicious keys being able to
2655 cause a denial of service. (CVE-2006-2940)
2656 [Steve Henson, Bodo Moeller]
2658 *) Fix ASN.1 parsing of certain invalid structures that can result
2659 in a denial of service. (CVE-2006-2937) [Steve Henson]
2661 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2662 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2664 *) Fix SSL client code which could crash if connecting to a
2665 malicious SSLv2 server. (CVE-2006-4343)
2666 [Tavis Ormandy and Will Drewry, Google Security Team]
2668 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
2669 match only those. Before that, "AES256-SHA" would be interpreted
2670 as a pattern and match "AES128-SHA" too (since AES128-SHA got
2671 the same strength classification in 0.9.7h) as we currently only
2672 have a single AES bit in the ciphersuite description bitmap.
2673 That change, however, also applied to ciphersuite strings such as
2674 "RC4-MD5" that intentionally matched multiple ciphersuites --
2675 namely, SSL 2.0 ciphersuites in addition to the more common ones
2676 from SSL 3.0/TLS 1.0.
2678 So we change the selection algorithm again: Naming an explicit
2679 ciphersuite selects this one ciphersuite, and any other similar
2680 ciphersuite (same bitmap) from *other* protocol versions.
2681 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2682 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
2684 Since SSL 2.0 does not have any ciphersuites for which the
2685 128/256 bit distinction would be relevant, this works for now.
2686 The proper fix will be to use different bits for AES128 and
2687 AES256, which would have avoided the problems from the beginning;
2688 however, bits are scarce, so we can only do this in a new release
2689 (not just a patchlevel) when we can change the SSL_CIPHER
2690 definition to split the single 'unsigned long mask' bitmap into
2691 multiple values to extend the available space.
2695 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2697 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2698 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2700 *) Add AES IGE and biIGE modes.
2703 *) Change the Unix randomness entropy gathering to use poll() when
2704 possible instead of select(), since the latter has some
2705 undesirable limitations.
2706 [Darryl Miles via Richard Levitte and Bodo Moeller]
2708 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2709 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2710 cannot be implicitly activated as part of, e.g., the "AES" alias.
2711 However, please upgrade to OpenSSL 0.9.9[-dev] for
2712 non-experimental use of the ECC ciphersuites to get TLS extension
2713 support, which is required for curve and point format negotiation
2714 to avoid potential handshake problems.
2717 *) Disable rogue ciphersuites:
2719 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2720 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2721 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2723 The latter two were purportedly from
2724 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2727 Also deactivate the remaining ciphersuites from
2728 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2729 unofficial, and the ID has long expired.
2732 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2733 dual-core machines) and other potential thread-safety issues.
2736 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2737 versions), which is now available for royalty-free use
2738 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2739 Also, add Camellia TLS ciphersuites from RFC 4132.
2741 To minimize changes between patchlevels in the OpenSSL 0.9.8
2742 series, Camellia remains excluded from compilation unless OpenSSL
2743 is configured with 'enable-camellia'.
2746 *) Disable the padding bug check when compression is in use. The padding
2747 bug check assumes the first packet is of even length, this is not
2748 necessarily true if compresssion is enabled and can result in false
2749 positives causing handshake failure. The actual bug test is ancient
2750 code so it is hoped that implementations will either have fixed it by
2751 now or any which still have the bug do not support compression.
2754 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2756 *) When applying a cipher rule check to see if string match is an explicit
2757 cipher suite and only match that one cipher suite if it is.
2760 *) Link in manifests for VC++ if needed.
2761 [Austin Ziegler <halostatue@gmail.com>]
2763 *) Update support for ECC-based TLS ciphersuites according to
2764 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2765 TLS extensions, which are supported starting with the 0.9.9
2766 branch, not in the OpenSSL 0.9.8 branch).
2769 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2770 opaque EVP_CIPHER_CTX handling.
2773 *) Fixes and enhancements to zlib compression code. We now only use
2774 "zlib1.dll" and use the default __cdecl calling convention on Win32
2775 to conform with the standards mentioned here:
2776 http://www.zlib.net/DLL_FAQ.txt
2777 Static zlib linking now works on Windows and the new --with-zlib-include
2778 --with-zlib-lib options to Configure can be used to supply the location
2779 of the headers and library. Gracefully handle case where zlib library
2783 *) Several fixes and enhancements to the OID generation code. The old code
2784 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2785 handle numbers larger than ULONG_MAX, truncated printing and had a
2786 non standard OBJ_obj2txt() behaviour.
2789 *) Add support for building of engines under engine/ as shared libraries
2790 under VC++ build system.
2793 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2794 Hopefully, we will not see any false combination of paths any more.
2797 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2799 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2800 (part of SSL_OP_ALL). This option used to disable the
2801 countermeasure against man-in-the-middle protocol-version
2802 rollback in the SSL 2.0 server implementation, which is a bad
2803 idea. (CVE-2005-2969)
2805 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2806 for Information Security, National Institute of Advanced Industrial
2807 Science and Technology [AIST], Japan)]
2809 *) Add two function to clear and return the verify parameter flags.
2812 *) Keep cipherlists sorted in the source instead of sorting them at
2813 runtime, thus removing the need for a lock.
2816 *) Avoid some small subgroup attacks in Diffie-Hellman.
2817 [Nick Mathewson and Ben Laurie]
2819 *) Add functions for well-known primes.
2822 *) Extended Windows CE support.
2823 [Satoshi Nakamura and Andy Polyakov]
2825 *) Initialize SSL_METHOD structures at compile time instead of during
2826 runtime, thus removing the need for a lock.
2829 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2830 attempting to decrypt each encrypted key in turn. Add support to
2834 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2836 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2839 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2842 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2843 key into the same file any more.
2846 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2849 *) Add -utf8 command line and config file option to 'ca'.
2850 [Stefan <stf@udoma.org]
2852 *) Removed the macro des_crypt(), as it seems to conflict with some
2853 libraries. Use DES_crypt().
2856 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2857 involves renaming the source and generated shared-libs for
2858 both. The engines will accept the corrected or legacy ids
2859 ('ncipher' and '4758_cca' respectively) when binding. NB,
2860 this only applies when building 'shared'.
2861 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2863 *) Add attribute functions to EVP_PKEY structure. Modify
2864 PKCS12_create() to recognize a CSP name attribute and
2865 use it. Make -CSP option work again in pkcs12 utility.
2868 *) Add new functionality to the bn blinding code:
2869 - automatic re-creation of the BN_BLINDING parameters after
2870 a fixed number of uses (currently 32)
2871 - add new function for parameter creation
2872 - introduce flags to control the update behaviour of the
2873 BN_BLINDING parameters
2874 - hide BN_BLINDING structure
2875 Add a second BN_BLINDING slot to the RSA structure to improve
2876 performance when a single RSA object is shared among several
2880 *) Add support for DTLS.
2881 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2883 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2884 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2887 *) Remove buggy and incompletet DH cert support from
2888 ssl/ssl_rsa.c and ssl/s3_both.c
2891 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2892 the apps/openssl applications.
2895 *) Compile clean with "-Wall -Wmissing-prototypes
2896 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2897 DEBUG_SAFESTACK must also be set.
2900 *) Change ./Configure so that certain algorithms can be disabled by default.
2901 The new counterpiece to "no-xxx" is "enable-xxx".
2903 The patented RC5 and MDC2 algorithms will now be disabled unless
2904 "enable-rc5" and "enable-mdc2", respectively, are specified.
2906 (IDEA remains enabled despite being patented. This is because IDEA
2907 is frequently required for interoperability, and there is no license
2908 fee for non-commercial use. As before, "no-idea" can be used to
2909 avoid this algorithm.)
2913 *) Add processing of proxy certificates (see RFC 3820). This work was
2914 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2915 EGEE (Enabling Grids for E-science in Europe).
2918 *) RC4 performance overhaul on modern architectures/implementations, such
2919 as Intel P4, IA-64 and AMD64.
2922 *) New utility extract-section.pl. This can be used specify an alternative
2923 section number in a pod file instead of having to treat each file as
2924 a separate case in Makefile. This can be done by adding two lines to the
2927 =for comment openssl_section:XXX
2929 The blank line is mandatory.
2933 *) New arguments -certform, -keyform and -pass for s_client and s_server
2934 to allow alternative format key and certificate files and passphrase
2938 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2939 update associated structures and add various utility functions.
2941 Add new policy related verify parameters, include policy checking in
2942 standard verify code. Enhance 'smime' application with extra parameters
2943 to support policy checking and print out.
2946 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2947 Nehemiah processors. These extensions support AES encryption in hardware
2948 as well as RNG (though RNG support is currently disabled).
2949 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2951 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2954 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2955 [Andy Polyakov and a number of other people]
2957 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2958 implementation contributed by IBM.
2959 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2961 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2962 exponent rather than 'unsigned long'. There is a corresponding change to
2963 the new 'rsa_keygen' element of the RSA_METHOD structure.
2964 [Jelte Jansen, Geoff Thorpe]
2966 *) Functionality for creating the initial serial number file is now
2967 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2969 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2970 number file to 1, which is bound to cause problems. To avoid
2971 the problems while respecting compatibility between different 0.9.7
2972 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2973 CA.pl for serial number initialization. With the new release 0.9.8,
2974 we can fix the problem directly in the 'ca' utility.)
2977 *) Reduced header interdepencies by declaring more opaque objects in
2978 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2979 give fewer recursive includes, which could break lazy source code - so
2980 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2981 developers should define this symbol when building and using openssl to
2982 ensure they track the recommended behaviour, interfaces, [etc], but
2983 backwards-compatible behaviour prevails when this isn't defined.
2986 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2989 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2990 This will generate a random key of the appropriate length based on the
2991 cipher context. The EVP_CIPHER can provide its own random key generation
2992 routine to support keys of a specific form. This is used in the des and
2993 3des routines to generate a key of the correct parity. Update S/MIME
2994 code to use new functions and hence generate correct parity DES keys.
2995 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2996 valid (weak or incorrect parity).
2999 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
3000 as looking them up. This is useful when the verified structure may contain
3001 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
3002 present unless the new PKCS7_NO_CRL flag is asserted.
3005 *) Extend ASN1 oid configuration module. It now additionally accepts the
3008 shortName = some long name, 1.2.3.4
3011 *) Reimplemented the BN_CTX implementation. There is now no more static
3012 limitation on the number of variables it can handle nor the depth of the
3013 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
3014 information can now expand as required, and rather than having a single
3015 static array of bignums, BN_CTX now uses a linked-list of such arrays
3016 allowing it to expand on demand whilst maintaining the usefulness of
3017 BN_CTX's "bundling".
3020 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
3021 to allow all RSA operations to function using a single BN_CTX.
3024 *) Preliminary support for certificate policy evaluation and checking. This
3025 is initially intended to pass the tests outlined in "Conformance Testing
3026 of Relying Party Client Certificate Path Processing Logic" v1.07.
3029 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
3030 remained unused and not that useful. A variety of other little bignum
3031 tweaks and fixes have also been made continuing on from the audit (see
3035 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
3036 associated ASN1, EVP and SSL functions and old ASN1 macros.
3039 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
3040 and this should never fail. So the return value from the use of
3041 BN_set_word() (which can fail due to needless expansion) is now deprecated;
3042 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
3045 *) BN_CTX_get() should return zero-valued bignums, providing the same
3046 initialised value as BN_new().
3047 [Geoff Thorpe, suggested by Ulf Möller]
3049 *) Support for inhibitAnyPolicy certificate extension.
3052 *) An audit of the BIGNUM code is underway, for which debugging code is
3053 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
3054 is considered valid when processing BIGNUMs, and causes execution to
3055 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
3056 further steps are taken to deliberately pollute unused data in BIGNUM
3057 structures to try and expose faulty code further on. For now, openssl will
3058 (in its default mode of operation) continue to tolerate the inconsistent
3059 forms that it has tolerated in the past, but authors and packagers should
3060 consider trying openssl and their own applications when compiled with
3061 these debugging symbols defined. It will help highlight potential bugs in
3062 their own code, and will improve the test coverage for OpenSSL itself. At
3063 some point, these tighter rules will become openssl's default to improve
3064 maintainability, though the assert()s and other overheads will remain only
3065 in debugging configurations. See bn.h for more details.
3066 [Geoff Thorpe, Nils Larsch, Ulf Möller]
3068 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
3069 that can only be obtained through BN_CTX_new() (which implicitly
3070 initialises it). The presence of this function only made it possible
3071 to overwrite an existing structure (and cause memory leaks).
3074 *) Because of the callback-based approach for implementing LHASH as a
3075 template type, lh_insert() adds opaque objects to hash-tables and
3076 lh_doall() or lh_doall_arg() are typically used with a destructor callback
3077 to clean up those corresponding objects before destroying the hash table
3078 (and losing the object pointers). So some over-zealous constifications in
3079 LHASH have been relaxed so that lh_insert() does not take (nor store) the
3080 objects as "const" and the lh_doall[_arg] callback wrappers are not
3081 prototyped to have "const" restrictions on the object pointers they are
3082 given (and so aren't required to cast them away any more).
3085 *) The tmdiff.h API was so ugly and minimal that our own timing utility
3086 (speed) prefers to use its own implementation. The two implementations
3087 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
3088 its object type properly exposed (MS_TM) instead of casting to/from "char
3089 *". This may still change yet if someone realises MS_TM and "ms_time_***"
3090 aren't necessarily the greatest nomenclatures - but this is what was used
3091 internally to the implementation so I've used that for now.
3094 *) Ensure that deprecated functions do not get compiled when
3095 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
3096 the self-tests were still using deprecated key-generation functions so
3097 these have been updated also.
3100 *) Reorganise PKCS#7 code to separate the digest location functionality
3101 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
3102 New function PKCS7_set_digest() to set the digest type for PKCS#7
3103 digestedData type. Add additional code to correctly generate the
3104 digestedData type and add support for this type in PKCS7 initialization
3108 *) New function PKCS7_set0_type_other() this initializes a PKCS7
3109 structure of type "other".
3112 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
3113 sure the loop does correctly stop and breaking ("division by zero")
3114 modulus operations are not performed. The (pre-generated) prime
3115 table crypto/bn/bn_prime.h was already correct, but it could not be
3116 re-generated on some platforms because of the "division by zero"
3117 situation in the script.
3118 [Ralf S. Engelschall]
3120 *) Update support for ECC-based TLS ciphersuites according to
3121 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
3122 SHA-1 now is only used for "small" curves (where the
3123 representation of a field element takes up to 24 bytes); for
3124 larger curves, the field element resulting from ECDH is directly
3125 used as premaster secret.
3126 [Douglas Stebila (Sun Microsystems Laboratories)]
3128 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
3129 curve secp160r1 to the tests.
3130 [Douglas Stebila (Sun Microsystems Laboratories)]
3132 *) Add the possibility to load symbols globally with DSO.
3133 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
3135 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
3136 control of the error stack.
3139 *) Add support for STORE in ENGINE.
3142 *) Add the STORE type. The intention is to provide a common interface
3143 to certificate and key stores, be they simple file-based stores, or
3144 HSM-type store, or LDAP stores, or...
3145 NOTE: The code is currently UNTESTED and isn't really used anywhere.
3148 *) Add a generic structure called OPENSSL_ITEM. This can be used to
3149 pass a list of arguments to any function as well as provide a way
3150 for a function to pass data back to the caller.
3153 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
3154 works like BUF_strdup() but can be used to duplicate a portion of
3155 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
3159 *) Add the function sk_find_ex() which works like sk_find(), but will
3160 return an index to an element even if an exact match couldn't be
3161 found. The index is guaranteed to point at the element where the
3162 searched-for key would be inserted to preserve sorting order.
3165 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
3166 takes an extra flags argument for optional functionality. Currently,
3167 the following flags are defined:
3169 OBJ_BSEARCH_VALUE_ON_NOMATCH
3170 This one gets OBJ_bsearch_ex() to return a pointer to the first
3171 element where the comparing function returns a negative or zero
3174 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
3175 This one gets OBJ_bsearch_ex() to return a pointer to the first
3176 element where the comparing function returns zero. This is useful
3177 if there are more than one element where the comparing function
3181 *) Make it possible to create self-signed certificates with 'openssl ca'
3182 in such a way that the self-signed certificate becomes part of the
3183 CA database and uses the same mechanisms for serial number generation
3184 as all other certificate signing. The new flag '-selfsign' enables
3185 this functionality. Adapt CA.sh and CA.pl.in.
3188 *) Add functionality to check the public key of a certificate request
3189 against a given private. This is useful to check that a certificate
3190 request can be signed by that key (self-signing).
3193 *) Make it possible to have multiple active certificates with the same
3194 subject in the CA index file. This is done only if the keyword
3195 'unique_subject' is set to 'no' in the main CA section (default
3196 if 'CA_default') of the configuration file. The value is saved
3197 with the database itself in a separate index attribute file,
3198 named like the index file with '.attr' appended to the name.
3201 *) Generate muti valued AVAs using '+' notation in config files for
3205 *) Support for nameConstraints certificate extension.
3208 *) Support for policyConstraints certificate extension.
3211 *) Support for policyMappings certificate extension.
3214 *) Make sure the default DSA_METHOD implementation only uses its
3215 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
3216 and change its own handlers to be NULL so as to remove unnecessary
3217 indirection. This lets alternative implementations fallback to the
3218 default implementation more easily.
3221 *) Support for directoryName in GeneralName related extensions
3225 *) Make it possible to link applications using Makefile.shared.
3226 Make that possible even when linking against static libraries!
3229 *) Support for single pass processing for S/MIME signing. This now
3230 means that S/MIME signing can be done from a pipe, in addition
3231 cleartext signing (multipart/signed type) is effectively streaming
3232 and the signed data does not need to be all held in memory.
3234 This is done with a new flag PKCS7_STREAM. When this flag is set
3235 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
3236 is done after the data is output (and digests calculated) in
3237 SMIME_write_PKCS7().
3240 *) Add full support for -rpath/-R, both in shared libraries and
3241 applications, at least on the platforms where it's known how
3245 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
3246 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
3247 will now compute a table of multiples of the generator that
3248 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
3249 faster (notably in the case of a single point multiplication,
3250 scalar * generator).
3251 [Nils Larsch, Bodo Moeller]
3253 *) IPv6 support for certificate extensions. The various extensions
3254 which use the IP:a.b.c.d can now take IPv6 addresses using the
3255 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
3259 *) Added an ENGINE that implements RSA by performing private key
3260 exponentiations with the GMP library. The conversions to and from
3261 GMP's mpz_t format aren't optimised nor are any montgomery forms
3262 cached, and on x86 it appears OpenSSL's own performance has caught up.
3263 However there are likely to be other architectures where GMP could
3264 provide a boost. This ENGINE is not built in by default, but it can be
3265 specified at Configure time and should be accompanied by the necessary
3266 linker additions, eg;
3267 ./config -DOPENSSL_USE_GMP -lgmp
3270 *) "openssl engine" will not display ENGINE/DSO load failure errors when
3271 testing availability of engines with "-t" - the old behaviour is
3272 produced by increasing the feature's verbosity with "-tt".
3275 *) ECDSA routines: under certain error conditions uninitialized BN objects
3276 could be freed. Solution: make sure initialization is performed early
3277 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
3281 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
3282 and DH_METHOD (eg. by ENGINE implementations) to override the normal
3283 software implementations. For DSA and DH, parameter generation can
3284 also be overriden by providing the appropriate method callbacks.
3287 *) Change the "progress" mechanism used in key-generation and
3288 primality testing to functions that take a new BN_GENCB pointer in
3289 place of callback/argument pairs. The new API functions have "_ex"
3290 postfixes and the older functions are reimplemented as wrappers for
3291 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
3292 declarations of the old functions to help (graceful) attempts to
3293 migrate to the new functions. Also, the new key-generation API
3294 functions operate on a caller-supplied key-structure and return
3295 success/failure rather than returning a key or NULL - this is to
3296 help make "keygen" another member function of RSA_METHOD etc.
3298 Example for using the new callback interface:
3300 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
3304 BN_GENCB_set(&my_cb, my_callback, my_arg);
3306 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
3307 /* For the meaning of a, b in calls to my_callback(), see the
3308 * documentation of the function that calls the callback.
3309 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
3310 * my_callback should return 1 if it wants BN_is_prime_ex()
3311 * to continue, or 0 to stop.
3316 *) Change the ZLIB compression method to be stateful, and make it
3317 available to TLS with the number defined in
3318 draft-ietf-tls-compression-04.txt.
3321 *) Add the ASN.1 structures and functions for CertificatePair, which
3322 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
3324 CertificatePair ::= SEQUENCE {
3325 forward [0] Certificate OPTIONAL,
3326 reverse [1] Certificate OPTIONAL,
3327 -- at least one of the pair shall be present -- }
3329 Also implement the PEM functions to read and write certificate
3330 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
3332 This needed to be defined, mostly for the sake of the LDAP
3333 attribute crossCertificatePair, but may prove useful elsewhere as
3337 *) Make it possible to inhibit symlinking of shared libraries in
3338 Makefile.shared, for Cygwin's sake.
3341 *) Extend the BIGNUM API by creating a function
3342 void BN_set_negative(BIGNUM *a, int neg);
3343 and a macro that behave like
3344 int BN_is_negative(const BIGNUM *a);
3346 to avoid the need to access 'a->neg' directly in applications.
3349 *) Implement fast modular reduction for pseudo-Mersenne primes
3350 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
3351 EC_GROUP_new_curve_GFp() will now automatically use this
3353 [Nils Larsch <nla@trustcenter.de>]
3355 *) Add new lock type (CRYPTO_LOCK_BN).
3358 *) Change the ENGINE framework to automatically load engines
3359 dynamically from specific directories unless they could be
3360 found to already be built in or loaded. Move all the
3361 current engines except for the cryptodev one to a new
3363 The engines in engines/ are built as shared libraries if
3364 the "shared" options was given to ./Configure or ./config.
3365 Otherwise, they are inserted in libcrypto.a.
3366 /usr/local/ssl/engines is the default directory for dynamic
3367 engines, but that can be overriden at configure time through
3368 the usual use of --prefix and/or --openssldir, and at run
3369 time with the environment variable OPENSSL_ENGINES.
3370 [Geoff Thorpe and Richard Levitte]
3372 *) Add Makefile.shared, a helper makefile to build shared
3373 libraries. Addapt Makefile.org.
3376 *) Add version info to Win32 DLLs.
3377 [Peter 'Luna' Runestig" <peter@runestig.com>]
3379 *) Add new 'medium level' PKCS#12 API. Certificates and keys
3380 can be added using this API to created arbitrary PKCS#12
3381 files while avoiding the low level API.
3383 New options to PKCS12_create(), key or cert can be NULL and
3384 will then be omitted from the output file. The encryption
3385 algorithm NIDs can be set to -1 for no encryption, the mac
3386 iteration count can be set to 0 to omit the mac.
3388 Enhance pkcs12 utility by making the -nokeys and -nocerts
3389 options work when creating a PKCS#12 file. New option -nomac
3390 to omit the mac, NONE can be set for an encryption algorithm.
3391 New code is modified to use the enhanced PKCS12_create()
3392 instead of the low level API.
3395 *) Extend ASN1 encoder to support indefinite length constructed
3396 encoding. This can output sequences tags and octet strings in
3397 this form. Modify pk7_asn1.c to support indefinite length
3398 encoding. This is experimental and needs additional code to
3399 be useful, such as an ASN1 bio and some enhanced streaming
3402 Extend template encode functionality so that tagging is passed
3403 down to the template encoder.
3406 *) Let 'openssl req' fail if an argument to '-newkey' is not
3407 recognized instead of using RSA as a default.
3410 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
3411 As these are not official, they are not included in "ALL";
3412 the "ECCdraft" ciphersuite group alias can be used to select them.
3413 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
3415 *) Add ECDH engine support.
3416 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
3418 *) Add ECDH in new directory crypto/ecdh/.
3419 [Douglas Stebila (Sun Microsystems Laboratories)]
3421 *) Let BN_rand_range() abort with an error after 100 iterations
3422 without success (which indicates a broken PRNG).
3425 *) Change BN_mod_sqrt() so that it verifies that the input value
3426 is really the square of the return value. (Previously,
3427 BN_mod_sqrt would show GIGO behaviour.)
3430 *) Add named elliptic curves over binary fields from X9.62, SECG,
3431 and WAP/WTLS; add OIDs that were still missing.
3433 [Sheueling Chang Shantz and Douglas Stebila
3434 (Sun Microsystems Laboratories)]
3436 *) Extend the EC library for elliptic curves over binary fields
3437 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
3440 EC_GF2m_simple_method
3444 EC_GROUP_new_curve_GF2m
3445 EC_GROUP_set_curve_GF2m
3446 EC_GROUP_get_curve_GF2m
3447 EC_POINT_set_affine_coordinates_GF2m
3448 EC_POINT_get_affine_coordinates_GF2m
3449 EC_POINT_set_compressed_coordinates_GF2m
3451 Point compression for binary fields is disabled by default for
3452 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
3455 As binary polynomials are represented as BIGNUMs, various members
3456 of the EC_GROUP and EC_POINT data structures can be shared
3457 between the implementations for prime fields and binary fields;
3458 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
3459 are essentially identical to their ..._GFp counterparts.
3460 (For simplicity, the '..._GFp' prefix has been dropped from
3461 various internal method names.)
3463 An internal 'field_div' method (similar to 'field_mul' and
3464 'field_sqr') has been added; this is used only for binary fields.
3466 [Sheueling Chang Shantz and Douglas Stebila
3467 (Sun Microsystems Laboratories)]
3469 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
3470 through methods ('mul', 'precompute_mult').
3472 The generic implementations (now internally called 'ec_wNAF_mul'
3473 and 'ec_wNAF_precomputed_mult') remain the default if these
3474 methods are undefined.
3476 [Sheueling Chang Shantz and Douglas Stebila
3477 (Sun Microsystems Laboratories)]
3479 *) New function EC_GROUP_get_degree, which is defined through
3480 EC_METHOD. For curves over prime fields, this returns the bit
3481 length of the modulus.
3483 [Sheueling Chang Shantz and Douglas Stebila
3484 (Sun Microsystems Laboratories)]
3486 *) New functions EC_GROUP_dup, EC_POINT_dup.
3487 (These simply call ..._new and ..._copy).
3489 [Sheueling Chang Shantz and Douglas Stebila
3490 (Sun Microsystems Laboratories)]
3492 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
3493 Polynomials are represented as BIGNUMs (where the sign bit is not
3494 used) in the following functions [macros]:
3497 BN_GF2m_sub [= BN_GF2m_add]
3498 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
3499 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
3500 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
3502 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
3503 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
3504 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
3505 BN_GF2m_cmp [= BN_ucmp]
3507 (Note that only the 'mod' functions are actually for fields GF(2^m).
3508 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
3510 For some functions, an the irreducible polynomial defining a
3511 field can be given as an 'unsigned int[]' with strictly
3512 decreasing elements giving the indices of those bits that are set;
3513 i.e., p[] represents the polynomial
3514 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
3516 p[0] > p[1] > ... > p[k] = 0.
3517 This applies to the following functions:
3522 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
3523 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
3525 BN_GF2m_mod_sqrt_arr
3526 BN_GF2m_mod_solve_quad_arr
3530 Conversion can be performed by the following functions:
3535 bntest.c has additional tests for binary polynomial arithmetic.
3537 Two implementations for BN_GF2m_mod_div() are available.
3538 The default algorithm simply uses BN_GF2m_mod_inv() and
3539 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
3540 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
3541 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
3543 [Sheueling Chang Shantz and Douglas Stebila
3544 (Sun Microsystems Laboratories)]
3546 *) Add new error code 'ERR_R_DISABLED' that can be used when some
3547 functionality is disabled at compile-time.
3548 [Douglas Stebila <douglas.stebila@sun.com>]
3550 *) Change default behaviour of 'openssl asn1parse' so that more
3551 information is visible when viewing, e.g., a certificate:
3553 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
3554 mode the content of non-printable OCTET STRINGs is output in a
3555 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
3556 avoid the appearance of a printable string.
3557 [Nils Larsch <nla@trustcenter.de>]
3559 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
3561 EC_GROUP_set_asn1_flag()
3562 EC_GROUP_get_asn1_flag()
3563 EC_GROUP_set_point_conversion_form()
3564 EC_GROUP_get_point_conversion_form()
3565 These control ASN1 encoding details:
3566 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
3567 has been set to OPENSSL_EC_NAMED_CURVE.
3568 - Points are encoded in uncompressed form by default; options for
3569 asn1_for are as for point2oct, namely
3570 POINT_CONVERSION_COMPRESSED
3571 POINT_CONVERSION_UNCOMPRESSED
3572 POINT_CONVERSION_HYBRID
3574 Also add 'seed' and 'seed_len' members to EC_GROUP with access
3577 EC_GROUP_get0_seed()
3578 EC_GROUP_get_seed_len()
3579 This is used only for ASN1 purposes (so far).
3580 [Nils Larsch <nla@trustcenter.de>]
3582 *) Add 'field_type' member to EC_METHOD, which holds the NID
3583 of the appropriate field type OID. The new function
3584 EC_METHOD_get_field_type() returns this value.
3585 [Nils Larsch <nla@trustcenter.de>]
3590 EC_POINT_point2hex()
3591 EC_POINT_hex2point()
3592 providing useful interfaces to EC_POINT_point2oct() and
3593 EC_POINT_oct2point().
3594 [Nils Larsch <nla@trustcenter.de>]
3596 *) Change internals of the EC library so that the functions
3597 EC_GROUP_set_generator()
3598 EC_GROUP_get_generator()
3599 EC_GROUP_get_order()
3600 EC_GROUP_get_cofactor()
3601 are implemented directly in crypto/ec/ec_lib.c and not dispatched
3602 to methods, which would lead to unnecessary code duplication when
3603 adding different types of curves.
3604 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
3606 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
3607 arithmetic, and such that modified wNAFs are generated
3608 (which avoid length expansion in many cases).
3611 *) Add a function EC_GROUP_check_discriminant() (defined via
3612 EC_METHOD) that verifies that the curve discriminant is non-zero.
3614 Add a function EC_GROUP_check() that makes some sanity tests
3615 on a EC_GROUP, its generator and order. This includes
3616 EC_GROUP_check_discriminant().
3617 [Nils Larsch <nla@trustcenter.de>]
3619 *) Add ECDSA in new directory crypto/ecdsa/.
3621 Add applications 'openssl ecparam' and 'openssl ecdsa'
3622 (these are based on 'openssl dsaparam' and 'openssl dsa').
3624 ECDSA support is also included in various other files across the
3625 library. Most notably,
3626 - 'openssl req' now has a '-newkey ecdsa:file' option;
3627 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
3628 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
3629 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
3630 them suitable for ECDSA where domain parameters must be
3631 extracted before the specific public key;
3632 - ECDSA engine support has been added.
3633 [Nils Larsch <nla@trustcenter.de>]
3635 *) Include some named elliptic curves, and add OIDs from X9.62,
3636 SECG, and WAP/WTLS. Each curve can be obtained from the new
3638 EC_GROUP_new_by_curve_name(),
3639 and the list of available named curves can be obtained with
3640 EC_get_builtin_curves().
3641 Also add a 'curve_name' member to EC_GROUP objects, which can be
3643 EC_GROUP_set_curve_name()
3644 EC_GROUP_get_curve_name()
3645 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
3647 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3648 was actually never needed) and in BN_mul(). The removal in BN_mul()
3649 required a small change in bn_mul_part_recursive() and the addition
3650 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3651 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3652 bn_sub_words() and bn_add_words() except they take arrays with
3656 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
3658 *) Cleanse PEM buffers before freeing them since they may contain
3660 [Benjamin Bennett <ben@psc.edu>]
3662 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3663 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3664 authentication-only ciphersuites.
3667 *) Since AES128 and AES256 share a single mask bit in the logic of
3668 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3669 kludge to work properly if AES128 is available and AES256 isn't.
3672 *) Expand security boundary to match 1.1.1 module.
3675 *) Remove redundant features: hash file source, editing of test vectors
3676 modify fipsld to use external fips_premain.c signature.
3679 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3680 run algorithm test programs.
3683 *) Make algorithm test programs more tolerant of whitespace.
3686 *) Have SSL/TLS server implementation tolerate "mismatched" record
3687 protocol version while receiving ClientHello even if the
3688 ClientHello is fragmented. (The server can't insist on the
3689 particular protocol version it has chosen before the ServerHello
3690 message has informed the client about his choice.)
3693 *) Load error codes if they are not already present instead of using a
3694 static variable. This allows them to be cleanly unloaded and reloaded.
3697 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3699 *) Introduce limits to prevent malicious keys being able to
3700 cause a denial of service. (CVE-2006-2940)
3701 [Steve Henson, Bodo Moeller]
3703 *) Fix ASN.1 parsing of certain invalid structures that can result
3704 in a denial of service. (CVE-2006-2937) [Steve Henson]
3706 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3707 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3709 *) Fix SSL client code which could crash if connecting to a
3710 malicious SSLv2 server. (CVE-2006-4343)
3711 [Tavis Ormandy and Will Drewry, Google Security Team]
3713 *) Change ciphersuite string processing so that an explicit
3714 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3715 will no longer include "AES128-SHA"), and any other similar
3716 ciphersuite (same bitmap) from *other* protocol versions (so that
3717 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3718 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3719 changes from 0.9.8b and 0.9.8d.
3722 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3724 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3725 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3727 *) Change the Unix randomness entropy gathering to use poll() when
3728 possible instead of select(), since the latter has some
3729 undesirable limitations.
3730 [Darryl Miles via Richard Levitte and Bodo Moeller]
3732 *) Disable rogue ciphersuites:
3734 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3735 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3736 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3738 The latter two were purportedly from
3739 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3742 Also deactive the remaining ciphersuites from
3743 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3744 unofficial, and the ID has long expired.
3747 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3748 dual-core machines) and other potential thread-safety issues.
3751 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3753 *) Adapt fipsld and the build system to link against the validated FIPS
3754 module in FIPS mode.
3757 *) Fixes for VC++ 2005 build under Windows.
3760 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3761 from a Windows bash shell such as MSYS. It is autodetected from the
3762 "config" script when run from a VC++ environment. Modify standard VC++
3763 build to use fipscanister.o from the GNU make build.
3766 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3768 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3769 The value now differs depending on if you build for FIPS or not.
3770 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3771 safely run with a non-FIPSed libcrypto, as it may crash because of
3772 the difference induced by this change.
3775 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3777 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3778 (part of SSL_OP_ALL). This option used to disable the
3779 countermeasure against man-in-the-middle protocol-version
3780 rollback in the SSL 2.0 server implementation, which is a bad
3781 idea. (CVE-2005-2969)
3783 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3784 for Information Security, National Institute of Advanced Industrial
3785 Science and Technology [AIST], Japan)]
3787 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3788 mainly for FIPS compliance and not fully integrated at this stage.
3791 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3792 the exponentiation using a fixed-length exponent. (Otherwise,
3793 the information leaked through timing could expose the secret key
3794 after many signatures; cf. Bleichenbacher's attack on DSA with
3798 *) Make a new fixed-window mod_exp implementation the default for
3799 RSA, DSA, and DH private-key operations so that the sequence of
3800 squares and multiplies and the memory access pattern are
3801 independent of the particular secret key. This will mitigate
3802 cache-timing and potential related attacks.
3804 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3805 and this is automatically used by BN_mod_exp_mont() if the new flag
3806 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3807 will use this BN flag for private exponents unless the flag
3808 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3809 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3811 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3813 *) Change the client implementation for SSLv23_method() and
3814 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3815 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3816 (Previously, the SSL 2.0 backwards compatible Client Hello
3817 message format would be used even with SSL_OP_NO_SSLv2.)
3820 *) Add support for smime-type MIME parameter in S/MIME messages which some
3824 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3825 a threadsafe manner. Modify rsa code to use new function and add calls
3826 to dsa and dh code (which had race conditions before).
3829 *) Include the fixed error library code in the C error file definitions
3830 instead of fixing them up at runtime. This keeps the error code
3831 structures constant.
3834 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3836 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3839 *) Fixes for newer kerberos headers. NB: the casts are needed because
3840 the 'length' field is signed on one version and unsigned on another
3841 with no (?) obvious way to tell the difference, without these VC++
3842 complains. Also the "definition" of FAR (blank) is no longer included
3843 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3844 some needed definitions.
3847 *) Undo Cygwin change.
3850 *) Added support for proxy certificates according to RFC 3820.
3851 Because they may be a security thread to unaware applications,
3852 they must be explicitely allowed in run-time. See
3853 docs/HOWTO/proxy_certificates.txt for further information.
3856 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3858 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3859 server and client random values. Previously
3860 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3861 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3863 This change has negligible security impact because:
3865 1. Server and client random values still have 24 bytes of pseudo random
3868 2. Server and client random values are sent in the clear in the initial
3871 3. The master secret is derived using the premaster secret (48 bytes in
3872 size for static RSA ciphersuites) as well as client server and random
3875 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3878 [Stephen Henson, reported by UK NISCC]
3880 *) Use Windows randomness collection on Cygwin.
3883 *) Fix hang in EGD/PRNGD query when communication socket is closed
3884 prematurely by EGD/PRNGD.
3885 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3887 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3890 *) Back-port of selected performance improvements from development
3891 branch, as well as improved support for PowerPC platforms.
3894 *) Add lots of checks for memory allocation failure, error codes to indicate
3895 failure and freeing up memory if a failure occurs.
3896 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3898 *) Add new -passin argument to dgst.
3901 *) Perform some character comparisons of different types in X509_NAME_cmp:
3902 this is needed for some certificates that reencode DNs into UTF8Strings
3903 (in violation of RFC3280) and can't or wont issue name rollover
3907 *) Make an explicit check during certificate validation to see that
3908 the CA setting in each certificate on the chain is correct. As a
3909 side effect always do the following basic checks on extensions,
3910 not just when there's an associated purpose to the check:
3912 - if there is an unhandled critical extension (unless the user
3913 has chosen to ignore this fault)
3914 - if the path length has been exceeded (if one is set at all)
3915 - that certain extensions fit the associated purpose (if one has
3919 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3921 *) Avoid a race condition when CRLs are checked in a multi threaded
3922 environment. This would happen due to the reordering of the revoked
3923 entries during signature checking and serial number lookup. Now the
3924 encoding is cached and the serial number sort performed under a lock.
3925 Add new STACK function sk_is_sorted().
3928 *) Add Delta CRL to the extension code.
3931 *) Various fixes to s3_pkt.c so alerts are sent properly.
3932 [David Holmes <d.holmes@f5.com>]
3934 *) Reduce the chances of duplicate issuer name and serial numbers (in
3935 violation of RFC3280) using the OpenSSL certificate creation utilities.
3936 This is done by creating a random 64 bit value for the initial serial
3937 number when a serial number file is created or when a self signed
3938 certificate is created using 'openssl req -x509'. The initial serial
3939 number file is created using 'openssl x509 -next_serial' in CA.pl
3940 rather than being initialized to 1.
3943 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3945 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3946 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3947 [Joe Orton, Steve Henson]
3949 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3951 [Joe Orton, Steve Henson]
3953 *) Make it possible to have multiple active certificates with the same
3954 subject in the CA index file. This is done only if the keyword
3955 'unique_subject' is set to 'no' in the main CA section (default
3956 if 'CA_default') of the configuration file. The value is saved
3957 with the database itself in a separate index attribute file,
3958 named like the index file with '.attr' appended to the name.
3961 *) X509 verify fixes. Disable broken certificate workarounds when
3962 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3963 keyUsage extension present. Don't accept CRLs with unhandled critical
3964 extensions: since verify currently doesn't process CRL extensions this
3965 rejects a CRL with *any* critical extensions. Add new verify error codes
3969 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3970 A clarification of RFC2560 will require the use of OCTET STRINGs and
3971 some implementations cannot handle the current raw format. Since OpenSSL
3972 copies and compares OCSP nonces as opaque blobs without any attempt at
3973 parsing them this should not create any compatibility issues.
3976 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3977 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3978 this HMAC (and other) operations are several times slower than OpenSSL
3982 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3983 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3985 *) Use the correct content when signing type "other".
3988 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3990 *) Fix various bugs revealed by running the NISCC test suite:
3992 Stop out of bounds reads in the ASN1 code when presented with
3993 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3995 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3997 If verify callback ignores invalid public key errors don't try to check
3998 certificate signature with the NULL public key.
4002 *) New -ignore_err option in ocsp application to stop the server
4003 exiting on the first error in a request.
4006 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
4007 if the server requested one: as stated in TLS 1.0 and SSL 3.0
4011 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
4012 extra data after the compression methods not only for TLS 1.0
4013 but also for SSL 3.0 (as required by the specification).
4014 [Bodo Moeller; problem pointed out by Matthias Loepfe]
4016 *) Change X509_certificate_type() to mark the key as exported/exportable
4017 when it's 512 *bits* long, not 512 bytes.
4020 *) Change AES_cbc_encrypt() so it outputs exact multiple of
4021 blocks during encryption.
4024 *) Various fixes to base64 BIO and non blocking I/O. On write
4025 flushes were not handled properly if the BIO retried. On read
4026 data was not being buffered properly and had various logic bugs.
4027 This also affects blocking I/O when the data being decoded is a
4031 *) Various S/MIME bugfixes and compatibility changes:
4032 output correct application/pkcs7 MIME type if
4033 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
4034 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
4035 of files as .eml work). Correctly handle very long lines in MIME
4039 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
4041 *) Countermeasure against the Klima-Pokorny-Rosa extension of
4042 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
4043 a protocol version number mismatch like a decryption error
4044 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
4047 *) Turn on RSA blinding by default in the default implementation
4048 to avoid a timing attack. Applications that don't want it can call
4049 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
4050 They would be ill-advised to do so in most cases.
4051 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
4053 *) Change RSA blinding code so that it works when the PRNG is not
4054 seeded (in this case, the secret RSA exponent is abused as
4055 an unpredictable seed -- if it is not unpredictable, there
4056 is no point in blinding anyway). Make RSA blinding thread-safe
4057 by remembering the creator's thread ID in rsa->blinding and
4058 having all other threads use local one-time blinding factors
4059 (this requires more computation than sharing rsa->blinding, but
4060 avoids excessive locking; and if an RSA object is not shared
4061 between threads, blinding will still be very fast).
4064 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
4065 ENGINE as defaults for all supported algorithms irrespective of
4066 the 'flags' parameter. 'flags' is now honoured, so applications
4067 should make sure they are passing it correctly.
4070 *) Target "mingw" now allows native Windows code to be generated in
4071 the Cygwin environment as well as with the MinGW compiler.
4074 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
4076 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4077 via timing by performing a MAC computation even if incorrrect
4078 block cipher padding has been found. This is a countermeasure
4079 against active attacks where the attacker has to distinguish
4080 between bad padding and a MAC verification error. (CVE-2003-0078)
4082 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4083 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4084 Martin Vuagnoux (EPFL, Ilion)]
4086 *) Make the no-err option work as intended. The intention with no-err
4087 is not to have the whole error stack handling routines removed from
4088 libcrypto, it's only intended to remove all the function name and
4089 reason texts, thereby removing some of the footprint that may not
4090 be interesting if those errors aren't displayed anyway.
4092 NOTE: it's still possible for any application or module to have it's
4093 own set of error texts inserted. The routines are there, just not
4094 used by default when no-err is given.
4097 *) Add support for FreeBSD on IA64.
4098 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
4100 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
4101 Kerberos function mit_des_cbc_cksum(). Before this change,
4102 the value returned by DES_cbc_cksum() was like the one from
4103 mit_des_cbc_cksum(), except the bytes were swapped.
4104 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
4106 *) Allow an application to disable the automatic SSL chain building.
4107 Before this a rather primitive chain build was always performed in
4108 ssl3_output_cert_chain(): an application had no way to send the
4109 correct chain if the automatic operation produced an incorrect result.
4111 Now the chain builder is disabled if either:
4113 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
4115 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
4117 The reasoning behind this is that an application would not want the
4118 auto chain building to take place if extra chain certificates are
4119 present and it might also want a means of sending no additional
4120 certificates (for example the chain has two certificates and the
4124 *) Add the possibility to build without the ENGINE framework.
4125 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
4127 *) Under Win32 gmtime() can return NULL: check return value in
4128 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
4131 *) DSA routines: under certain error conditions uninitialized BN objects
4132 could be freed. Solution: make sure initialization is performed early
4133 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
4134 Nils Larsch <nla@trustcenter.de> via PR#459)
4137 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
4138 checked on reconnect on the client side, therefore session resumption
4139 could still fail with a "ssl session id is different" error. This
4140 behaviour is masked when SSL_OP_ALL is used due to
4141 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
4142 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
4143 followup to PR #377.
4146 *) IA-32 assembler support enhancements: unified ELF targets, support
4147 for SCO/Caldera platforms, fix for Cygwin shared build.
4150 *) Add support for FreeBSD on sparc64. As a consequence, support for
4151 FreeBSD on non-x86 processors is separate from x86 processors on
4152 the config script, much like the NetBSD support.
4153 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
4155 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
4157 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
4160 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
4161 code (06) was taken as the first octet of the session ID and the last
4162 octet was ignored consequently. As a result SSLv2 client side session
4163 caching could not have worked due to the session ID mismatch between
4165 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
4169 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
4170 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
4174 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
4175 seems that in spite of existing for more than a year, many application
4176 author have done nothing to provide the necessary callbacks, which
4177 means that this particular engine will not work properly anywhere.
4178 This is a very unfortunate situation which forces us, in the name
4179 of usability, to give the hw_ncipher.c a static lock, which is part
4181 NOTE: This is for the 0.9.7 series ONLY. This hack will never
4182 appear in 0.9.8 or later. We EXPECT application authors to have
4183 dealt properly with this when 0.9.8 is released (unless we actually
4184 make such changes in the libcrypto locking code that changes will
4185 have to be made anyway).
4188 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
4189 octets have been read, EOF or an error occurs. Without this change
4190 some truncated ASN1 structures will not produce an error.
4193 *) Disable Heimdal support, since it hasn't been fully implemented.
4194 Still give the possibility to force the use of Heimdal, but with
4195 warnings and a request that patches get sent to openssl-dev.
4198 *) Add the VC-CE target, introduce the WINCE sysname, and add
4199 INSTALL.WCE and appropriate conditionals to make it build.
4200 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
4202 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
4203 cygssl-x.y.z.dll, where x, y and z are the major, minor and
4204 edit numbers of the version.
4205 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4207 *) Introduce safe string copy and catenation functions
4208 (BUF_strlcpy() and BUF_strlcat()).
4209 [Ben Laurie (CHATS) and Richard Levitte]
4211 *) Avoid using fixed-size buffers for one-line DNs.
4212 [Ben Laurie (CHATS)]
4214 *) Add BUF_MEM_grow_clean() to avoid information leakage when
4215 resizing buffers containing secrets, and use where appropriate.
4216 [Ben Laurie (CHATS)]
4218 *) Avoid using fixed size buffers for configuration file location.
4219 [Ben Laurie (CHATS)]
4221 *) Avoid filename truncation for various CA files.
4222 [Ben Laurie (CHATS)]
4224 *) Use sizeof in preference to magic numbers.
4225 [Ben Laurie (CHATS)]
4227 *) Avoid filename truncation in cert requests.
4228 [Ben Laurie (CHATS)]
4230 *) Add assertions to check for (supposedly impossible) buffer
4232 [Ben Laurie (CHATS)]
4234 *) Don't cache truncated DNS entries in the local cache (this could
4235 potentially lead to a spoofing attack).
4236 [Ben Laurie (CHATS)]
4238 *) Fix various buffers to be large enough for hex/decimal
4239 representations in a platform independent manner.
4240 [Ben Laurie (CHATS)]
4242 *) Add CRYPTO_realloc_clean() to avoid information leakage when
4243 resizing buffers containing secrets, and use where appropriate.
4244 [Ben Laurie (CHATS)]
4246 *) Add BIO_indent() to avoid much slightly worrying code to do
4248 [Ben Laurie (CHATS)]
4250 *) Convert sprintf()/BIO_puts() to BIO_printf().
4251 [Ben Laurie (CHATS)]
4253 *) buffer_gets() could terminate with the buffer only half
4255 [Ben Laurie (CHATS)]
4257 *) Add assertions to prevent user-supplied crypto functions from
4258 overflowing internal buffers by having large block sizes, etc.
4259 [Ben Laurie (CHATS)]
4261 *) New OPENSSL_assert() macro (similar to assert(), but enabled
4263 [Ben Laurie (CHATS)]
4265 *) Eliminate unused copy of key in RC4.
4266 [Ben Laurie (CHATS)]
4268 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
4269 [Ben Laurie (CHATS)]
4271 *) Fix off-by-one error in EGD path.
4272 [Ben Laurie (CHATS)]
4274 *) If RANDFILE path is too long, ignore instead of truncating.
4275 [Ben Laurie (CHATS)]
4277 *) Eliminate unused and incorrectly sized X.509 structure
4279 [Ben Laurie (CHATS)]
4281 *) Eliminate unused and dangerous function knumber().
4282 [Ben Laurie (CHATS)]
4284 *) Eliminate unused and dangerous structure, KSSL_ERR.
4285 [Ben Laurie (CHATS)]
4287 *) Protect against overlong session ID context length in an encoded
4288 session object. Since these are local, this does not appear to be
4290 [Ben Laurie (CHATS)]
4292 *) Change from security patch (see 0.9.6e below) that did not affect
4293 the 0.9.6 release series:
4295 Remote buffer overflow in SSL3 protocol - an attacker could
4296 supply an oversized master key in Kerberos-enabled versions.
4298 [Ben Laurie (CHATS)]
4300 *) Change the SSL kerb5 codes to match RFC 2712.
4303 *) Make -nameopt work fully for req and add -reqopt switch.
4304 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
4306 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
4307 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
4309 *) Make sure tests can be performed even if the corresponding algorithms
4310 have been removed entirely. This was also the last step to make
4311 OpenSSL compilable with DJGPP under all reasonable conditions.
4312 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
4314 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
4315 to allow version independent disabling of normally unselected ciphers,
4316 which may be activated as a side-effect of selecting a single cipher.
4318 (E.g., cipher list string "RSA" enables ciphersuites that are left
4319 out of "ALL" because they do not provide symmetric encryption.
4320 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
4321 [Lutz Jaenicke, Bodo Moeller]
4323 *) Add appropriate support for separate platform-dependent build
4324 directories. The recommended way to make a platform-dependent
4325 build directory is the following (tested on Linux), maybe with
4328 # Place yourself outside of the OpenSSL source tree. In
4329 # this example, the environment variable OPENSSL_SOURCE
4330 # is assumed to contain the absolute OpenSSL source directory.
4331 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
4332 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
4333 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
4334 mkdir -p `dirname $F`
4335 ln -s $OPENSSL_SOURCE/$F $F
4338 To be absolutely sure not to disturb the source tree, a "make clean"
4339 is a good thing. If it isn't successfull, don't worry about it,
4340 it probably means the source directory is very clean.
4343 *) Make sure any ENGINE control commands make local copies of string
4344 pointers passed to them whenever necessary. Otherwise it is possible
4345 the caller may have overwritten (or deallocated) the original string
4346 data when a later ENGINE operation tries to use the stored values.
4347 [Götz Babin-Ebell <babinebell@trustcenter.de>]
4349 *) Improve diagnostics in file reading and command-line digests.
4350 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
4352 *) Add AES modes CFB and OFB to the object database. Correct an
4353 error in AES-CFB decryption.
4356 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
4357 allows existing EVP_CIPHER_CTX structures to be reused after
4358 calling EVP_*Final(). This behaviour is used by encryption
4359 BIOs and some applications. This has the side effect that
4360 applications must explicitly clean up cipher contexts with
4361 EVP_CIPHER_CTX_cleanup() or they will leak memory.
4364 *) Check the values of dna and dnb in bn_mul_recursive before calling
4365 bn_mul_comba (a non zero value means the a or b arrays do not contain
4366 n2 elements) and fallback to bn_mul_normal if either is not zero.
4369 *) Fix escaping of non-ASCII characters when using the -subj option
4370 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
4373 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
4374 form for "surname", serialNumber has no short form.
4375 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
4376 therefore remove "mail" short name for "internet 7".
4377 The OID for unique identifiers in X509 certificates is
4378 x500UniqueIdentifier, not uniqueIdentifier.
4379 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
4382 *) Add an "init" command to the ENGINE config module and auto initialize
4383 ENGINEs. Without any "init" command the ENGINE will be initialized
4384 after all ctrl commands have been executed on it. If init=1 the
4385 ENGINE is initailized at that point (ctrls before that point are run
4386 on the uninitialized ENGINE and after on the initialized one). If
4387 init=0 then the ENGINE will not be iniatialized at all.
4390 *) Fix the 'app_verify_callback' interface so that the user-defined
4391 argument is actually passed to the callback: In the
4392 SSL_CTX_set_cert_verify_callback() prototype, the callback
4393 declaration has been changed from
4396 int (*cb)(X509_STORE_CTX *,void *);
4397 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
4398 i=s->ctx->app_verify_callback(&ctx)
4399 has been changed into
4400 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
4402 To update applications using SSL_CTX_set_cert_verify_callback(),
4403 a dummy argument can be added to their callback functions.
4404 [D. K. Smetters <smetters@parc.xerox.com>]
4406 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
4407 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
4409 *) Add and OPENSSL_LOAD_CONF define which will cause
4410 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
4411 This allows older applications to transparently support certain
4412 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
4413 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
4414 load the config file and OPENSSL_add_all_algorithms_conf() which will
4415 always load it have also been added.
4418 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
4419 Adjust NIDs and EVP layer.
4420 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4422 *) Config modules support in openssl utility.
4424 Most commands now load modules from the config file,
4425 though in a few (such as version) this isn't done
4426 because it couldn't be used for anything.
4428 In the case of ca and req the config file used is
4429 the same as the utility itself: that is the -config
4430 command line option can be used to specify an
4434 *) Move default behaviour from OPENSSL_config(). If appname is NULL
4435 use "openssl_conf" if filename is NULL use default openssl config file.
4438 *) Add an argument to OPENSSL_config() to allow the use of an alternative
4439 config section name. Add a new flag to tolerate a missing config file
4440 and move code to CONF_modules_load_file().
4443 *) Support for crypto accelerator cards from Accelerated Encryption
4444 Processing, www.aep.ie. (Use engine 'aep')
4445 The support was copied from 0.9.6c [engine] and adapted/corrected
4446 to work with the new engine framework.
4447 [AEP Inc. and Richard Levitte]
4449 *) Support for SureWare crypto accelerator cards from Baltimore
4450 Technologies. (Use engine 'sureware')
4451 The support was copied from 0.9.6c [engine] and adapted
4452 to work with the new engine framework.
4455 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
4456 make the newer ENGINE framework commands for the CHIL engine work.
4457 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
4459 *) Make it possible to produce shared libraries on ReliantUNIX.
4460 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
4462 *) Add the configuration target debug-linux-ppro.
4463 Make 'openssl rsa' use the general key loading routines
4464 implemented in apps.c, and make those routines able to
4465 handle the key format FORMAT_NETSCAPE and the variant
4467 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4469 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4470 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4472 *) Add -keyform to rsautl, and document -engine.
4473 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
4475 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
4476 BIO_R_NO_SUCH_FILE error code rather than the generic
4477 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
4480 *) Add new functions
4482 ERR_peek_last_error_line
4483 ERR_peek_last_error_line_data.
4484 These are similar to
4487 ERR_peek_error_line_data,
4488 but report on the latest error recorded rather than the first one
4489 still in the error queue.
4490 [Ben Laurie, Bodo Moeller]
4492 *) default_algorithms option in ENGINE config module. This allows things
4494 default_algorithms = ALL
4495 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
4498 *) Prelminary ENGINE config module.
4501 *) New experimental application configuration code.
4504 *) Change the AES code to follow the same name structure as all other
4505 symmetric ciphers, and behave the same way. Move everything to
4506 the directory crypto/aes, thereby obsoleting crypto/rijndael.
4507 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4509 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
4510 [Ben Laurie and Theo de Raadt]
4512 *) Add option to output public keys in req command.
4513 [Massimiliano Pala madwolf@openca.org]
4515 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
4516 (up to about 10% better than before for P-192 and P-224).
4519 *) New functions/macros
4521 SSL_CTX_set_msg_callback(ctx, cb)
4522 SSL_CTX_set_msg_callback_arg(ctx, arg)
4523 SSL_set_msg_callback(ssl, cb)
4524 SSL_set_msg_callback_arg(ssl, arg)
4526 to request calling a callback function
4528 void cb(int write_p, int version, int content_type,
4529 const void *buf, size_t len, SSL *ssl, void *arg)
4531 whenever a protocol message has been completely received
4532 (write_p == 0) or sent (write_p == 1). Here 'version' is the
4533 protocol version according to which the SSL library interprets
4534 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
4535 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
4536 the content type as defined in the SSL 3.0/TLS 1.0 protocol
4537 specification (change_cipher_spec(20), alert(21), handshake(22)).
4538 'buf' and 'len' point to the actual message, 'ssl' to the
4539 SSL object, and 'arg' is the application-defined value set by
4540 SSL[_CTX]_set_msg_callback_arg().
4542 'openssl s_client' and 'openssl s_server' have new '-msg' options
4543 to enable a callback that displays all protocol messages.
4546 *) Change the shared library support so shared libraries are built as
4547 soon as the corresponding static library is finished, and thereby get
4548 openssl and the test programs linked against the shared library.
4549 This still only happens when the keyword "shard" has been given to
4550 the configuration scripts.
4552 NOTE: shared library support is still an experimental thing, and
4553 backward binary compatibility is still not guaranteed.
4554 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
4556 *) Add support for Subject Information Access extension.
4557 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4559 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
4560 additional bytes when new memory had to be allocated, not just
4561 when reusing an existing buffer.
4564 *) New command line and configuration option 'utf8' for the req command.
4565 This allows field values to be specified as UTF8 strings.
4568 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
4569 runs for the former and machine-readable output for the latter.
4572 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
4573 of the e-mail address in the DN (i.e., it will go into a certificate
4574 extension only). The new configuration file option 'email_in_dn = no'
4575 has the same effect.
4576 [Massimiliano Pala madwolf@openca.org]
4578 *) Change all functions with names starting with des_ to be starting
4579 with DES_ instead. Add wrappers that are compatible with libdes,
4580 but are named _ossl_old_des_*. Finally, add macros that map the
4581 des_* symbols to the corresponding _ossl_old_des_* if libdes
4582 compatibility is desired. If OpenSSL 0.9.6c compatibility is
4583 desired, the des_* symbols will be mapped to DES_*, with one
4586 Since we provide two compatibility mappings, the user needs to
4587 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
4588 compatibility is desired. The default (i.e., when that macro
4589 isn't defined) is OpenSSL 0.9.6c compatibility.
4591 There are also macros that enable and disable the support of old
4592 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
4593 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
4594 are defined, the default will apply: to support the old des routines.
4596 In either case, one must include openssl/des.h to get the correct
4597 definitions. Do not try to just include openssl/des_old.h, that
4600 NOTE: This is a major break of an old API into a new one. Software
4601 authors are encouraged to switch to the DES_ style functions. Some
4602 time in the future, des_old.h and the libdes compatibility functions
4603 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
4604 default), and then completely removed.
4607 *) Test for certificates which contain unsupported critical extensions.
4608 If such a certificate is found during a verify operation it is
4609 rejected by default: this behaviour can be overridden by either
4610 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
4611 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
4612 X509_supported_extension() has also been added which returns 1 if a
4613 particular extension is supported.
4616 *) Modify the behaviour of EVP cipher functions in similar way to digests
4617 to retain compatibility with existing code.
4620 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
4621 compatibility with existing code. In particular the 'ctx' parameter does
4622 not have to be to be initialized before the call to EVP_DigestInit() and
4623 it is tidied up after a call to EVP_DigestFinal(). New function
4624 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
4625 EVP_MD_CTX_copy() changed to not require the destination to be
4626 initialized valid and new function EVP_MD_CTX_copy_ex() added which
4627 requires the destination to be valid.
4629 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
4630 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
4633 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
4634 so that complete 'Handshake' protocol structures are kept in memory
4635 instead of overwriting 'msg_type' and 'length' with 'body' data.
4638 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
4639 [Massimo Santin via Richard Levitte]
4641 *) Major restructuring to the underlying ENGINE code. This includes
4642 reduction of linker bloat, separation of pure "ENGINE" manipulation
4643 (initialisation, etc) from functionality dealing with implementations
4644 of specific crypto iterfaces. This change also introduces integrated
4645 support for symmetric ciphers and digest implementations - so ENGINEs
4646 can now accelerate these by providing EVP_CIPHER and EVP_MD
4647 implementations of their own. This is detailed in crypto/engine/README
4648 as it couldn't be adequately described here. However, there are a few
4649 API changes worth noting - some RSA, DSA, DH, and RAND functions that
4650 were changed in the original introduction of ENGINE code have now
4651 reverted back - the hooking from this code to ENGINE is now a good
4652 deal more passive and at run-time, operations deal directly with
4653 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
4654 dereferencing through an ENGINE pointer any more. Also, the ENGINE
4655 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
4656 they were not being used by the framework as there is no concept of a
4657 BIGNUM_METHOD and they could not be generalised to the new
4658 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
4659 ENGINE_cpy() has been removed as it cannot be consistently defined in
4663 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
4666 *) Change mkdef.pl to sort symbols that get the same entry number,
4667 and make sure the automatically generated functions ERR_load_*
4668 become part of libeay.num as well.
4671 *) New function SSL_renegotiate_pending(). This returns true once
4672 renegotiation has been requested (either SSL_renegotiate() call
4673 or HelloRequest/ClientHello receveived from the peer) and becomes
4674 false once a handshake has been completed.
4675 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
4676 sends a HelloRequest, but does not ensure that a handshake takes
4677 place. SSL_renegotiate_pending() is useful for checking if the
4678 client has followed the request.)
4681 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
4682 By default, clients may request session resumption even during
4683 renegotiation (if session ID contexts permit); with this option,
4684 session resumption is possible only in the first handshake.
4686 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
4687 more bits available for options that should not be part of
4688 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
4691 *) Add some demos for certificate and certificate request creation.
4694 *) Make maximum certificate chain size accepted from the peer application
4695 settable (SSL*_get/set_max_cert_list()), as proposed by
4696 "Douglas E. Engert" <deengert@anl.gov>.
4699 *) Add support for shared libraries for Unixware-7
4700 (Boyd Lynn Gerber <gerberb@zenez.com>).
4703 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
4704 be done prior to destruction. Use this to unload error strings from
4705 ENGINEs that load their own error strings. NB: This adds two new API
4706 functions to "get" and "set" this destroy handler in an ENGINE.
4709 *) Alter all existing ENGINE implementations (except "openssl" and
4710 "openbsd") to dynamically instantiate their own error strings. This
4711 makes them more flexible to be built both as statically-linked ENGINEs
4712 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
4713 Also, add stub code to each that makes building them as self-contained
4714 shared-libraries easier (see README.ENGINE).
4717 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
4718 implementations into applications that are completely implemented in
4719 self-contained shared-libraries. The "dynamic" ENGINE exposes control
4720 commands that can be used to configure what shared-library to load and
4721 to control aspects of the way it is handled. Also, made an update to
4722 the README.ENGINE file that brings its information up-to-date and
4723 provides some information and instructions on the "dynamic" ENGINE
4724 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4727 *) Make it possible to unload ranges of ERR strings with a new
4728 "ERR_unload_strings" function.
4731 *) Add a copy() function to EVP_MD.
4734 *) Make EVP_MD routines take a context pointer instead of just the
4735 md_data void pointer.
4738 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4739 that the digest can only process a single chunk of data
4740 (typically because it is provided by a piece of
4741 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4742 is only going to provide a single chunk of data, and hence the
4743 framework needn't accumulate the data for oneshot drivers.
4746 *) As with "ERR", make it possible to replace the underlying "ex_data"
4747 functions. This change also alters the storage and management of global
4748 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4749 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4750 index counters. The API functions that use this state have been changed
4751 to take a "class_index" rather than pointers to the class's local STACK
4752 and counter, and there is now an API function to dynamically create new
4753 classes. This centralisation allows us to (a) plug a lot of the
4754 thread-safety problems that existed, and (b) makes it possible to clean
4755 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4756 such data would previously have always leaked in application code and
4757 workarounds were in place to make the memory debugging turn a blind eye
4758 to it. Application code that doesn't use this new function will still
4759 leak as before, but their memory debugging output will announce it now
4760 rather than letting it slide.
4762 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4763 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4764 has a return value to indicate success or failure.
4767 *) Make it possible to replace the underlying "ERR" functions such that the
4768 global state (2 LHASH tables and 2 locks) is only used by the "default"
4769 implementation. This change also adds two functions to "get" and "set"
4770 the implementation prior to it being automatically set the first time
4771 any other ERR function takes place. Ie. an application can call "get",
4772 pass the return value to a module it has just loaded, and that module
4773 can call its own "set" function using that value. This means the
4774 module's "ERR" operations will use (and modify) the error state in the
4775 application and not in its own statically linked copy of OpenSSL code.
4778 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4779 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4780 the operation, and provides a more encapsulated way for external code
4781 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4782 to use these functions rather than manually incrementing the counts.
4784 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4787 *) Add EVP test program.
4790 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4793 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4794 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4795 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4796 These allow a CRL to be built without having to access X509_CRL fields
4797 directly. Modify 'ca' application to use new functions.
4800 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4801 bug workarounds. Rollback attack detection is a security feature.
4802 The problem will only arise on OpenSSL servers when TLSv1 is not
4803 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4804 Software authors not wanting to support TLSv1 will have special reasons
4805 for their choice and can explicitly enable this option.
4806 [Bodo Moeller, Lutz Jaenicke]
4808 *) Rationalise EVP so it can be extended: don't include a union of
4809 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4810 (similar to those existing for EVP_CIPHER_CTX).
4815 EVP_MD_CTX_init(&md); /* new function call */
4816 EVP_DigestInit(&md, EVP_sha1());
4817 EVP_DigestUpdate(&md, in, len);
4818 EVP_DigestFinal(&md, out, NULL);
4819 EVP_MD_CTX_cleanup(&md); /* new function call */
4823 *) Make DES key schedule conform to the usual scheme, as well as
4824 correcting its structure. This means that calls to DES functions
4825 now have to pass a pointer to a des_key_schedule instead of a
4826 plain des_key_schedule (which was actually always a pointer
4829 des_key_schedule ks;
4831 des_set_key_checked(..., &ks);
4832 des_ncbc_encrypt(..., &ks, ...);
4834 (Note that a later change renames 'des_...' into 'DES_...'.)
4837 *) Initial reduction of linker bloat: the use of some functions, such as
4838 PEM causes large amounts of unused functions to be linked in due to
4839 poor organisation. For example pem_all.c contains every PEM function
4840 which has a knock on effect of linking in large amounts of (unused)
4841 ASN1 code. Grouping together similar functions and splitting unrelated
4842 functions prevents this.
4845 *) Cleanup of EVP macros.
4848 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4849 correct _ecb suffix.
4852 *) Add initial OCSP responder support to ocsp application. The
4853 revocation information is handled using the text based index
4854 use by the ca application. The responder can either handle
4855 requests generated internally, supplied in files (for example
4856 via a CGI script) or using an internal minimal server.
4859 *) Add configuration choices to get zlib compression for TLS.
4862 *) Changes to Kerberos SSL for RFC 2712 compliance:
4863 1. Implemented real KerberosWrapper, instead of just using
4864 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4865 2. Implemented optional authenticator field of KerberosWrapper.
4867 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4868 and authenticator structs; see crypto/krb5/.
4870 Generalized Kerberos calls to support multiple Kerberos libraries.
4871 [Vern Staats <staatsvr@asc.hpc.mil>,
4872 Jeffrey Altman <jaltman@columbia.edu>
4873 via Richard Levitte]
4875 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4876 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4877 values for each of the key sizes rather than having just
4878 parameters (and 'speed' generating keys each time).
4881 *) Speed up EVP routines.
4884 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4885 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4886 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4887 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4889 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4890 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4891 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4894 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4896 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4899 *) Added the OS2-EMX target.
4900 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4902 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4903 to support NCONF routines in extension code. New function CONF_set_nconf()
4904 to allow functions which take an NCONF to also handle the old LHASH
4905 structure: this means that the old CONF compatible routines can be
4906 retained (in particular wrt extensions) without having to duplicate the
4907 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4910 *) Enhance the general user interface with mechanisms for inner control
4911 and with possibilities to have yes/no kind of prompts.
4914 *) Change all calls to low level digest routines in the library and
4915 applications to use EVP. Add missing calls to HMAC_cleanup() and
4916 don't assume HMAC_CTX can be copied using memcpy().
4917 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4919 *) Add the possibility to control engines through control names but with
4920 arbitrary arguments instead of just a string.
4921 Change the key loaders to take a UI_METHOD instead of a callback
4922 function pointer. NOTE: this breaks binary compatibility with earlier
4923 versions of OpenSSL [engine].
4924 Adapt the nCipher code for these new conditions and add a card insertion
4928 *) Enhance the general user interface with mechanisms to better support
4929 dialog box interfaces, application-defined prompts, the possibility
4930 to use defaults (for example default passwords from somewhere else)
4931 and interrupts/cancellations.
4934 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4935 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4938 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4939 tidy up some unnecessarily weird code in 'sk_new()').
4940 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4942 *) Change the key loading routines for ENGINEs to use the same kind
4943 callback (pem_password_cb) as all other routines that need this
4947 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4948 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4949 than this minimum value is recommended.
4952 *) New random seeder for OpenVMS, using the system process statistics
4953 that are easily reachable.
4956 *) Windows apparently can't transparently handle global
4957 variables defined in DLLs. Initialisations such as:
4959 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4961 wont compile. This is used by the any applications that need to
4962 declare their own ASN1 modules. This was fixed by adding the option
4963 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4964 needed for static libraries under Win32.
4967 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4968 setting of purpose and trust fields. New X509_STORE trust and
4969 purpose functions and tidy up setting in other SSL functions.
4972 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4973 structure. These are inherited by X509_STORE_CTX when it is
4974 initialised. This allows various defaults to be set in the
4975 X509_STORE structure (such as flags for CRL checking and custom
4976 purpose or trust settings) for functions which only use X509_STORE_CTX
4977 internally such as S/MIME.
4979 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4980 trust settings if they are not set in X509_STORE. This allows X509_STORE
4981 purposes and trust (in S/MIME for example) to override any set by default.
4983 Add command line options for CRL checking to smime, s_client and s_server
4987 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4988 are set then the CRL is looked up in the X509_STORE structure and
4989 its validity and signature checked, then if the certificate is found
4990 in the CRL the verify fails with a revoked error.
4992 Various new CRL related callbacks added to X509_STORE_CTX structure.
4994 Command line options added to 'verify' application to support this.
4996 This needs some additional work, such as being able to handle multiple
4997 CRLs with different times, extension based lookup (rather than just
4998 by subject name) and ultimately more complete V2 CRL extension
5002 *) Add a general user interface API (crypto/ui/). This is designed
5003 to replace things like des_read_password and friends (backward
5004 compatibility functions using this new API are provided).
5005 The purpose is to remove prompting functions from the DES code
5006 section as well as provide for prompting through dialog boxes in
5007 a window system and the like.
5010 *) Add "ex_data" support to ENGINE so implementations can add state at a
5011 per-structure level rather than having to store it globally.
5014 *) Make it possible for ENGINE structures to be copied when retrieved by
5015 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
5016 This causes the "original" ENGINE structure to act like a template,
5017 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
5018 operational state can be localised to each ENGINE structure, despite the
5019 fact they all share the same "methods". New ENGINE structures returned in
5020 this case have no functional references and the return value is the single
5021 structural reference. This matches the single structural reference returned
5022 by ENGINE_by_id() normally, when it is incremented on the pre-existing
5026 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
5027 needs to match any other type at all we need to manually clear the
5031 *) Changes to the "openssl engine" utility to include;
5032 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
5033 about an ENGINE's available control commands.
5034 - executing control commands from command line arguments using the
5035 '-pre' and '-post' switches. '-post' is only used if '-t' is
5036 specified and the ENGINE is successfully initialised. The syntax for
5037 the individual commands are colon-separated, for example;
5038 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
5041 *) New dynamic control command support for ENGINEs. ENGINEs can now
5042 declare their own commands (numbers), names (strings), descriptions,
5043 and input types for run-time discovery by calling applications. A
5044 subset of these commands are implicitly classed as "executable"
5045 depending on their input type, and only these can be invoked through
5046 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
5047 can be based on user input, config files, etc). The distinction is
5048 that "executable" commands cannot return anything other than a boolean
5049 result and can only support numeric or string input, whereas some
5050 discoverable commands may only be for direct use through
5051 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
5052 pointers, or other custom uses. The "executable" commands are to
5053 support parameterisations of ENGINE behaviour that can be
5054 unambiguously defined by ENGINEs and used consistently across any
5055 OpenSSL-based application. Commands have been added to all the
5056 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
5057 control over shared-library paths without source code alterations.
5060 *) Changed all ENGINE implementations to dynamically allocate their
5061 ENGINEs rather than declaring them statically. Apart from this being
5062 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
5063 this also allows the implementations to compile without using the
5064 internal engine_int.h header.
5067 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
5068 'const' value. Any code that should be able to modify a RAND_METHOD
5069 should already have non-const pointers to it (ie. they should only
5070 modify their own ones).
5073 *) Made a variety of little tweaks to the ENGINE code.
5074 - "atalla" and "ubsec" string definitions were moved from header files
5075 to C code. "nuron" string definitions were placed in variables
5076 rather than hard-coded - allowing parameterisation of these values
5077 later on via ctrl() commands.
5078 - Removed unused "#if 0"'d code.
5079 - Fixed engine list iteration code so it uses ENGINE_free() to release
5080 structural references.
5081 - Constified the RAND_METHOD element of ENGINE structures.
5082 - Constified various get/set functions as appropriate and added
5083 missing functions (including a catch-all ENGINE_cpy that duplicates
5084 all ENGINE values onto a new ENGINE except reference counts/state).
5085 - Removed NULL parameter checks in get/set functions. Setting a method
5086 or function to NULL is a way of cancelling out a previously set
5087 value. Passing a NULL ENGINE parameter is just plain stupid anyway
5088 and doesn't justify the extra error symbols and code.
5089 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
5090 flags from engine_int.h to engine.h.
5091 - Changed prototypes for ENGINE handler functions (init(), finish(),
5092 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
5095 *) Implement binary inversion algorithm for BN_mod_inverse in addition
5096 to the algorithm using long division. The binary algorithm can be
5097 used only if the modulus is odd. On 32-bit systems, it is faster
5098 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
5099 roughly 5-15% for 256-bit moduli), so we use it only for moduli
5100 up to 450 bits. In 64-bit environments, the binary algorithm
5101 appears to be advantageous for much longer moduli; here we use it
5102 for moduli up to 2048 bits.
5105 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
5106 could not support the combine flag in choice fields.
5109 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
5110 extensions from a certificate request to the certificate.
5113 *) Allow multiple 'certopt' and 'nameopt' options to be separated
5114 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
5115 file: this allows the display of the certificate about to be
5116 signed to be customised, to allow certain fields to be included
5117 or excluded and extension details. The old system didn't display
5118 multicharacter strings properly, omitted fields not in the policy
5119 and couldn't display additional details such as extensions.
5122 *) Function EC_POINTs_mul for multiple scalar multiplication
5123 of an arbitrary number of elliptic curve points
5124 \sum scalars[i]*points[i],
5125 optionally including the generator defined for the EC_GROUP:
5126 scalar*generator + \sum scalars[i]*points[i].
5128 EC_POINT_mul is a simple wrapper function for the typical case
5129 that the point list has just one item (besides the optional
5133 *) First EC_METHODs for curves over GF(p):
5135 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
5136 operations and provides various method functions that can also
5137 operate with faster implementations of modular arithmetic.
5139 EC_GFp_mont_method() reuses most functions that are part of
5140 EC_GFp_simple_method, but uses Montgomery arithmetic.
5142 [Bodo Moeller; point addition and point doubling
5143 implementation directly derived from source code provided by
5144 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
5146 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
5147 crypto/ec/ec_lib.c):
5149 Curves are EC_GROUP objects (with an optional group generator)
5150 based on EC_METHODs that are built into the library.
5152 Points are EC_POINT objects based on EC_GROUP objects.
5154 Most of the framework would be able to handle curves over arbitrary
5155 finite fields, but as there are no obvious types for fields other
5156 than GF(p), some functions are limited to that for now.
5159 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
5160 that the file contains a complete HTTP response.
5163 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
5164 change the def and num file printf format specifier from "%-40sXXX"
5165 to "%-39s XXX". The latter will always guarantee a space after the
5166 field while the former will cause them to run together if the field
5167 is 40 of more characters long.
5170 *) Constify the cipher and digest 'method' functions and structures
5171 and modify related functions to take constant EVP_MD and EVP_CIPHER
5175 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
5176 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
5179 *) Modify EVP_Digest*() routines so they now return values. Although the
5180 internal software routines can never fail additional hardware versions
5184 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
5186 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
5187 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
5190 ERR_R_NESTED_ASN1_ERROR
5192 ERR_R_MISSING_ASN1_EOS
5193 were 4 .. 9, conflicting with
5194 ERR_LIB_RSA (= ERR_R_RSA_LIB)
5196 ERR_LIB_PEM (= ERR_R_PEM_LIB).
5197 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
5199 Add new error code 'ERR_R_INTERNAL_ERROR'.
5202 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
5206 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
5207 sets the subject name for a new request or supersedes the
5208 subject name in a given request. Formats that can be parsed are
5209 'CN=Some Name, OU=myOU, C=IT'
5211 'CN=Some Name/OU=myOU/C=IT'.
5213 Add options '-batch' and '-verbose' to 'openssl req'.
5214 [Massimiliano Pala <madwolf@hackmasters.net>]
5216 *) Introduce the possibility to access global variables through
5217 functions on platform were that's the best way to handle exporting
5218 global variables in shared libraries. To enable this functionality,
5219 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
5220 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
5221 is normally done by Configure or something similar).
5223 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
5224 in the source file (foo.c) like this:
5226 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
5227 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
5229 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
5230 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
5232 OPENSSL_DECLARE_GLOBAL(int,foo);
5233 #define foo OPENSSL_GLOBAL_REF(foo)
5234 OPENSSL_DECLARE_GLOBAL(double,bar);
5235 #define bar OPENSSL_GLOBAL_REF(bar)
5237 The #defines are very important, and therefore so is including the
5238 header file everywhere where the defined globals are used.
5240 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
5241 of ASN.1 items, but that structure is a bit different.
5243 The largest change is in util/mkdef.pl which has been enhanced with
5244 better and easier to understand logic to choose which symbols should
5245 go into the Windows .def files as well as a number of fixes and code
5246 cleanup (among others, algorithm keywords are now sorted
5247 lexicographically to avoid constant rewrites).
5250 *) In BN_div() keep a copy of the sign of 'num' before writing the
5251 result to 'rm' because if rm==num the value will be overwritten
5252 and produce the wrong result if 'num' is negative: this caused
5253 problems with BN_mod() and BN_nnmod().
5256 *) Function OCSP_request_verify(). This checks the signature on an
5257 OCSP request and verifies the signer certificate. The signer
5258 certificate is just checked for a generic purpose and OCSP request
5262 *) Add OCSP_check_validity() function to check the validity of OCSP
5263 responses. OCSP responses are prepared in real time and may only
5264 be a few seconds old. Simply checking that the current time lies
5265 between thisUpdate and nextUpdate max reject otherwise valid responses
5266 caused by either OCSP responder or client clock inaccuracy. Instead
5267 we allow thisUpdate and nextUpdate to fall within a certain period of
5268 the current time. The age of the response can also optionally be
5269 checked. Two new options -validity_period and -status_age added to
5273 *) If signature or public key algorithm is unrecognized print out its
5274 OID rather that just UNKNOWN.
5277 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
5278 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
5279 ID to be generated from the issuer certificate alone which can then be
5280 passed to OCSP_id_issuer_cmp().
5283 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
5284 ASN1 modules to export functions returning ASN1_ITEM pointers
5285 instead of the ASN1_ITEM structures themselves. This adds several
5286 new macros which allow the underlying ASN1 function/structure to
5287 be accessed transparently. As a result code should not use ASN1_ITEM
5288 references directly (such as &X509_it) but instead use the relevant
5289 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
5290 use of the new ASN1 code on platforms where exporting structures
5291 is problematical (for example in shared libraries) but exporting
5292 functions returning pointers to structures is not.
5295 *) Add support for overriding the generation of SSL/TLS session IDs.
5296 These callbacks can be registered either in an SSL_CTX or per SSL.
5297 The purpose of this is to allow applications to control, if they wish,
5298 the arbitrary values chosen for use as session IDs, particularly as it
5299 can be useful for session caching in multiple-server environments. A
5300 command-line switch for testing this (and any client code that wishes
5301 to use such a feature) has been added to "s_server".
5302 [Geoff Thorpe, Lutz Jaenicke]
5304 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
5305 of the form '#if defined(...) || defined(...) || ...' and
5306 '#if !defined(...) && !defined(...) && ...'. This also avoids
5307 the growing number of special cases it was previously handling.
5310 *) Make all configuration macros available for application by making
5311 sure they are available in opensslconf.h, by giving them names starting
5312 with "OPENSSL_" to avoid conflicts with other packages and by making
5313 sure e_os2.h will cover all platform-specific cases together with
5315 Additionally, it is now possible to define configuration/platform-
5316 specific names (called "system identities"). In the C code, these
5317 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
5318 macro with the name beginning with "OPENSSL_SYS_", which is determined
5319 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
5323 *) New option -set_serial to 'req' and 'x509' this allows the serial
5324 number to use to be specified on the command line. Previously self
5325 signed certificates were hard coded with serial number 0 and the
5326 CA options of 'x509' had to use a serial number in a file which was
5330 *) New options to 'ca' utility to support V2 CRL entry extensions.
5331 Currently CRL reason, invalidity date and hold instruction are
5332 supported. Add new CRL extensions to V3 code and some new objects.
5335 *) New function EVP_CIPHER_CTX_set_padding() this is used to
5336 disable standard block padding (aka PKCS#5 padding) in the EVP
5337 API, which was previously mandatory. This means that the data is
5338 not padded in any way and so the total length much be a multiple
5339 of the block size, otherwise an error occurs.
5342 *) Initial (incomplete) OCSP SSL support.
5345 *) New function OCSP_parse_url(). This splits up a URL into its host,
5346 port and path components: primarily to parse OCSP URLs. New -url
5347 option to ocsp utility.
5350 *) New nonce behavior. The return value of OCSP_check_nonce() now
5351 reflects the various checks performed. Applications can decide
5352 whether to tolerate certain situations such as an absent nonce
5353 in a response when one was present in a request: the ocsp application
5354 just prints out a warning. New function OCSP_add1_basic_nonce()
5355 this is to allow responders to include a nonce in a response even if
5356 the request is nonce-less.
5359 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
5360 skipped when using openssl x509 multiple times on a single input file,
5361 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
5364 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
5365 set string type: to handle setting ASN1_TIME structures. Fix ca
5366 utility to correctly initialize revocation date of CRLs.
5369 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
5370 the clients preferred ciphersuites and rather use its own preferences.
5371 Should help to work around M$ SGC (Server Gated Cryptography) bug in
5372 Internet Explorer by ensuring unchanged hash method during stepup.
5373 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
5376 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
5377 to aes and add a new 'exist' option to print out symbols that don't
5381 *) Additional options to ocsp utility to allow flags to be set and
5382 additional certificates supplied.
5385 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
5386 OCSP client a number of certificate to only verify the response
5390 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
5391 handle the new API. Currently only ECB, CBC modes supported. Add new
5394 Add TLS AES ciphersuites as described in RFC3268, "Advanced
5395 Encryption Standard (AES) Ciphersuites for Transport Layer
5396 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
5397 not enabled by default and were not part of the "ALL" ciphersuite
5398 alias because they were not yet official; they could be
5399 explicitly requested by specifying the "AESdraft" ciphersuite
5400 group alias. In the final release of OpenSSL 0.9.7, the group
5401 alias is called "AES" and is part of "ALL".)
5402 [Ben Laurie, Steve Henson, Bodo Moeller]
5404 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
5405 request to response.
5408 *) Functions for OCSP responders. OCSP_request_onereq_count(),
5409 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
5410 extract information from a certificate request. OCSP_response_create()
5411 creates a response and optionally adds a basic response structure.
5412 OCSP_basic_add1_status() adds a complete single response to a basic
5413 response and returns the OCSP_SINGLERESP structure just added (to allow
5414 extensions to be included for example). OCSP_basic_add1_cert() adds a
5415 certificate to a basic response and OCSP_basic_sign() signs a basic
5416 response with various flags. New helper functions ASN1_TIME_check()
5417 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
5418 (converts ASN1_TIME to GeneralizedTime).
5421 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
5422 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
5423 structure from a certificate. X509_pubkey_digest() digests the public_key
5424 contents: this is used in various key identifiers.
5427 *) Make sk_sort() tolerate a NULL argument.
5428 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
5430 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
5431 passed by the function are trusted implicitly. If any of them signed the
5432 response then it is assumed to be valid and is not verified.
5435 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
5436 to data. This was previously part of the PKCS7 ASN1 code. This
5437 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
5438 [Steve Henson, reported by Kenneth R. Robinette
5439 <support@securenetterm.com>]
5441 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
5442 routines: without these tracing memory leaks is very painful.
5443 Fix leaks in PKCS12 and PKCS7 routines.
5446 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
5447 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
5448 effectively meant GeneralizedTime would never be used. Now it
5449 is initialised to -1 but X509_time_adj() now has to check the value
5450 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
5451 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
5452 [Steve Henson, reported by Kenneth R. Robinette
5453 <support@securenetterm.com>]
5455 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
5456 result in a zero length in the ASN1_INTEGER structure which was
5457 not consistent with the structure when d2i_ASN1_INTEGER() was used
5458 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
5459 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
5460 where it did not print out a minus for negative ASN1_INTEGER.
5463 *) Add summary printout to ocsp utility. The various functions which
5464 convert status values to strings have been renamed to:
5465 OCSP_response_status_str(), OCSP_cert_status_str() and
5466 OCSP_crl_reason_str() and are no longer static. New options
5467 to verify nonce values and to disable verification. OCSP response
5468 printout format cleaned up.
5471 *) Add additional OCSP certificate checks. These are those specified
5472 in RFC2560. This consists of two separate checks: the CA of the
5473 certificate being checked must either be the OCSP signer certificate
5474 or the issuer of the OCSP signer certificate. In the latter case the
5475 OCSP signer certificate must contain the OCSP signing extended key
5476 usage. This check is performed by attempting to match the OCSP
5477 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
5478 in the OCSP_CERTID structures of the response.
5481 *) Initial OCSP certificate verification added to OCSP_basic_verify()
5482 and related routines. This uses the standard OpenSSL certificate
5483 verify routines to perform initial checks (just CA validity) and
5484 to obtain the certificate chain. Then additional checks will be
5485 performed on the chain. Currently the root CA is checked to see
5486 if it is explicitly trusted for OCSP signing. This is used to set
5487 a root CA as a global signing root: that is any certificate that
5488 chains to that CA is an acceptable OCSP signing certificate.
5491 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
5492 extensions from a separate configuration file.
5493 As when reading extensions from the main configuration file,
5494 the '-extensions ...' option may be used for specifying the
5496 [Massimiliano Pala <madwolf@comune.modena.it>]
5498 *) New OCSP utility. Allows OCSP requests to be generated or
5499 read. The request can be sent to a responder and the output
5500 parsed, outputed or printed in text form. Not complete yet:
5501 still needs to check the OCSP response validity.
5504 *) New subcommands for 'openssl ca':
5505 'openssl ca -status <serial>' prints the status of the cert with
5506 the given serial number (according to the index file).
5507 'openssl ca -updatedb' updates the expiry status of certificates
5509 [Massimiliano Pala <madwolf@comune.modena.it>]
5511 *) New '-newreq-nodes' command option to CA.pl. This is like
5512 '-newreq', but calls 'openssl req' with the '-nodes' option
5513 so that the resulting key is not encrypted.
5514 [Damien Miller <djm@mindrot.org>]
5516 *) New configuration for the GNU Hurd.
5517 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
5519 *) Initial code to implement OCSP basic response verify. This
5520 is currently incomplete. Currently just finds the signer's
5521 certificate and verifies the signature on the response.
5524 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
5525 value of OPENSSLDIR. This is available via the new '-d' option
5526 to 'openssl version', and is also included in 'openssl version -a'.
5529 *) Allowing defining memory allocation callbacks that will be given
5530 file name and line number information in additional arguments
5531 (a const char* and an int). The basic functionality remains, as
5532 well as the original possibility to just replace malloc(),
5533 realloc() and free() by functions that do not know about these
5534 additional arguments. To register and find out the current
5535 settings for extended allocation functions, the following
5536 functions are provided:
5538 CRYPTO_set_mem_ex_functions
5539 CRYPTO_set_locked_mem_ex_functions
5540 CRYPTO_get_mem_ex_functions
5541 CRYPTO_get_locked_mem_ex_functions
5543 These work the same way as CRYPTO_set_mem_functions and friends.
5544 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
5545 extended allocation function is enabled.
5546 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
5547 a conventional allocation function is enabled.
5548 [Richard Levitte, Bodo Moeller]
5550 *) Finish off removing the remaining LHASH function pointer casts.
5551 There should no longer be any prototype-casting required when using
5552 the LHASH abstraction, and any casts that remain are "bugs". See
5553 the callback types and macros at the head of lhash.h for details
5554 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
5557 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
5558 If /dev/[u]random devices are not available or do not return enough
5559 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
5561 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
5562 /etc/entropy will be queried once each in this sequence, quering stops
5563 when enough entropy was collected without querying more sockets.
5566 *) Change the Unix RAND_poll() variant to be able to poll several
5567 random devices, as specified by DEVRANDOM, until a sufficient amount
5568 of data has been collected. We spend at most 10 ms on each file
5569 (select timeout) and read in non-blocking mode. DEVRANDOM now
5570 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
5571 (previously it was just the string "/dev/urandom"), so on typical
5572 platforms the 10 ms delay will never occur.
5573 Also separate out the Unix variant to its own file, rand_unix.c.
5574 For VMS, there's a currently-empty rand_vms.c.
5577 *) Move OCSP client related routines to ocsp_cl.c. These
5578 provide utility functions which an application needing
5579 to issue a request to an OCSP responder and analyse the
5580 response will typically need: as opposed to those which an
5581 OCSP responder itself would need which will be added later.
5583 OCSP_request_sign() signs an OCSP request with an API similar
5584 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
5585 response. OCSP_response_get1_basic() extracts basic response
5586 from response. OCSP_resp_find_status(): finds and extracts status
5587 information from an OCSP_CERTID structure (which will be created
5588 when the request structure is built). These are built from lower
5589 level functions which work on OCSP_SINGLERESP structures but
5590 wont normally be used unless the application wishes to examine
5591 extensions in the OCSP response for example.
5593 Replace nonce routines with a pair of functions.
5594 OCSP_request_add1_nonce() adds a nonce value and optionally
5595 generates a random value. OCSP_check_nonce() checks the
5596 validity of the nonce in an OCSP response.
5599 *) Change function OCSP_request_add() to OCSP_request_add0_id().
5600 This doesn't copy the supplied OCSP_CERTID and avoids the
5601 need to free up the newly created id. Change return type
5602 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
5603 This can then be used to add extensions to the request.
5604 Deleted OCSP_request_new(), since most of its functionality
5605 is now in OCSP_REQUEST_new() (and the case insensitive name
5606 clash) apart from the ability to set the request name which
5607 will be added elsewhere.
5610 *) Update OCSP API. Remove obsolete extensions argument from
5611 various functions. Extensions are now handled using the new
5612 OCSP extension code. New simple OCSP HTTP function which
5613 can be used to send requests and parse the response.
5616 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
5617 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
5618 uses the special reorder version of SET OF to sort the attributes
5619 and reorder them to match the encoded order. This resolves a long
5620 standing problem: a verify on a PKCS7 structure just after signing
5621 it used to fail because the attribute order did not match the
5622 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
5623 it uses the received order. This is necessary to tolerate some broken
5624 software that does not order SET OF. This is handled by encoding
5625 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
5626 to produce the required SET OF.
5629 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
5630 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
5631 files to get correct declarations of the ASN.1 item variables.
5634 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
5635 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
5636 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
5637 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
5638 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
5639 ASN1_ITEM and no wrapper functions.
5642 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
5643 replace the old function pointer based I/O routines. Change most of
5644 the *_d2i_bio() and *_d2i_fp() functions to use these.
5647 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
5648 lines, recognice more "algorithms" that can be deselected, and make
5649 it complain about algorithm deselection that isn't recognised.
5652 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
5653 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
5654 to use new functions. Add NO_ASN1_OLD which can be set to remove
5655 some old style ASN1 functions: this can be used to determine if old
5656 code will still work when these eventually go away.
5659 *) New extension functions for OCSP structures, these follow the
5660 same conventions as certificates and CRLs.
5663 *) New function X509V3_add1_i2d(). This automatically encodes and
5664 adds an extension. Its behaviour can be customised with various
5665 flags to append, replace or delete. Various wrappers added for
5666 certifcates and CRLs.
5669 *) Fix to avoid calling the underlying ASN1 print routine when
5670 an extension cannot be parsed. Correct a typo in the
5671 OCSP_SERVICELOC extension. Tidy up print OCSP format.
5674 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
5675 entries for variables.
5678 *) Add functionality to apps/openssl.c for detecting locking
5679 problems: As the program is single-threaded, all we have
5680 to do is register a locking callback using an array for
5681 storing which locks are currently held by the program.
5684 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
5685 SSL_get_ex_data_X509_STORE_idx(), which is used in
5686 ssl_verify_cert_chain() and thus can be called at any time
5687 during TLS/SSL handshakes so that thread-safety is essential.
5688 Unfortunately, the ex_data design is not at all suited
5689 for multi-threaded use, so it probably should be abolished.
5692 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
5693 [Broadcom, tweaked and integrated by Geoff Thorpe]
5695 *) Move common extension printing code to new function
5696 X509V3_print_extensions(). Reorganise OCSP print routines and
5697 implement some needed OCSP ASN1 functions. Add OCSP extensions.
5700 *) New function X509_signature_print() to remove duplication in some
5704 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
5705 set (this was treated exactly the same as SET OF previously). This
5706 is used to reorder the STACK representing the structure to match the
5707 encoding. This will be used to get round a problem where a PKCS7
5708 structure which was signed could not be verified because the STACK
5709 order did not reflect the encoded order.
5712 *) Reimplement the OCSP ASN1 module using the new code.
5715 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
5716 for its ASN1 operations. The old style function pointers still exist
5717 for now but they will eventually go away.
5720 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
5721 completely replaces the old ASN1 functionality with a table driven
5722 encoder and decoder which interprets an ASN1_ITEM structure describing
5723 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5724 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5725 has also been converted to the new form.
5728 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5729 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5730 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5731 for negative moduli.
5734 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5735 of not touching the result's sign bit.
5738 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5742 *) Changed the LHASH code to use prototypes for callbacks, and created
5743 macros to declare and implement thin (optionally static) functions
5744 that provide type-safety and avoid function pointer casting for the
5745 type-specific callbacks.
5748 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5750 [Veers Staats <staatsvr@asc.hpc.mil>,
5751 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5753 *) Reformat the FAQ so the different questions and answers can be divided
5754 in sections depending on the subject.
5757 *) Have the zlib compression code load ZLIB.DLL dynamically under
5761 *) New function BN_mod_sqrt for computing square roots modulo a prime
5762 (using the probabilistic Tonelli-Shanks algorithm unless
5763 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5764 be handled deterministically).
5765 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5767 *) Make BN_mod_inverse faster by explicitly handling small quotients
5768 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5769 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5772 *) New function BN_kronecker.
5775 *) Fix BN_gcd so that it works on negative inputs; the result is
5776 positive unless both parameters are zero.
5777 Previously something reasonably close to an infinite loop was
5778 possible because numbers could be growing instead of shrinking
5779 in the implementation of Euclid's algorithm.
5782 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5783 sign of the number in question.
5785 Fix BN_is_word(a,w) to work correctly for w == 0.
5787 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5788 because its test if the absolute value of 'a' equals 'w'.
5789 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5790 it exists mostly for use in the implementations of BN_is_zero(),
5791 BN_is_one(), and BN_is_word().
5794 *) New function BN_swap.
5797 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5798 the exponentiation functions are more likely to produce reasonable
5799 results on negative inputs.
5802 *) Change BN_mod_mul so that the result is always non-negative.
5803 Previously, it could be negative if one of the factors was negative;
5804 I don't think anyone really wanted that behaviour.
5807 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5808 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5809 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5810 and add new functions:
5819 BN_mod_lshift1_quick
5823 These functions always generate non-negative results.
5825 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5826 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5828 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5829 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5830 be reduced modulo m.
5831 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5834 The following entry accidentily appeared in the CHANGES file
5835 distributed with OpenSSL 0.9.7. The modifications described in
5836 it do *not* apply to OpenSSL 0.9.7.
5838 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5839 was actually never needed) and in BN_mul(). The removal in BN_mul()
5840 required a small change in bn_mul_part_recursive() and the addition
5841 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5842 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5843 bn_sub_words() and bn_add_words() except they take arrays with
5848 *) In 'openssl passwd', verify passwords read from the terminal
5849 unless the '-salt' option is used (which usually means that
5850 verification would just waste user's time since the resulting
5851 hash is going to be compared with some given password hash)
5852 or the new '-noverify' option is used.
5854 This is an incompatible change, but it does not affect
5855 non-interactive use of 'openssl passwd' (passwords on the command
5856 line, '-stdin' option, '-in ...' option) and thus should not
5860 *) Remove all references to RSAref, since there's no more need for it.
5863 *) Make DSO load along a path given through an environment variable
5864 (SHLIB_PATH) with shl_load().
5867 *) Constify the ENGINE code as a result of BIGNUM constification.
5868 Also constify the RSA code and most things related to it. In a
5869 few places, most notable in the depth of the ASN.1 code, ugly
5870 casts back to non-const were required (to be solved at a later
5874 *) Make it so the openssl application has all engines loaded by default.
5877 *) Constify the BIGNUM routines a little more.
5880 *) Add the following functions:
5882 ENGINE_load_cswift()
5884 ENGINE_load_atalla()
5886 ENGINE_load_builtin_engines()
5888 That way, an application can itself choose if external engines that
5889 are built-in in OpenSSL shall ever be used or not. The benefit is
5890 that applications won't have to be linked with libdl or other dso
5891 libraries unless it's really needed.
5893 Changed 'openssl engine' to load all engines on demand.
5894 Changed the engine header files to avoid the duplication of some
5895 declarations (they differed!).
5898 *) 'openssl engine' can now list capabilities.
5901 *) Better error reporting in 'openssl engine'.
5904 *) Never call load_dh_param(NULL) in s_server.
5907 *) Add engine application. It can currently list engines by name and
5908 identity, and test if they are actually available.
5911 *) Improve RPM specification file by forcing symbolic linking and making
5912 sure the installed documentation is also owned by root.root.
5913 [Damien Miller <djm@mindrot.org>]
5915 *) Give the OpenSSL applications more possibilities to make use of
5916 keys (public as well as private) handled by engines.
5919 *) Add OCSP code that comes from CertCo.
5922 *) Add VMS support for the Rijndael code.
5925 *) Added untested support for Nuron crypto accelerator.
5928 *) Add support for external cryptographic devices. This code was
5929 previously distributed separately as the "engine" branch.
5930 [Geoff Thorpe, Richard Levitte]
5932 *) Rework the filename-translation in the DSO code. It is now possible to
5933 have far greater control over how a "name" is turned into a filename
5934 depending on the operating environment and any oddities about the
5935 different shared library filenames on each system.
5938 *) Support threads on FreeBSD-elf in Configure.
5941 *) Fix for SHA1 assembly problem with MASM: it produces
5942 warnings about corrupt line number information when assembling
5943 with debugging information. This is caused by the overlapping
5945 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5948 NCONF_get_number() has no error checking at all. As a replacement,
5949 NCONF_get_number_e() is defined (_e for "error checking") and is
5950 promoted strongly. The old NCONF_get_number is kept around for
5951 binary backward compatibility.
5952 Make it possible for methods to load from something other than a BIO,
5953 by providing a function pointer that is given a name instead of a BIO.
5954 For example, this could be used to load configuration data from an
5958 *) Fix for non blocking accept BIOs. Added new I/O special reason
5959 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5960 with non blocking I/O was not possible because no retry code was
5961 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5965 *) Added the beginnings of Rijndael support.
5968 *) Fix for bug in DirectoryString mask setting. Add support for
5969 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5970 to allow certificate printing to more controllable, additional
5971 'certopt' option to 'x509' to allow new printing options to be
5975 *) Clean old EAY MD5 hack from e_os.h.
5978 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5980 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5981 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5982 [Joe Orton, Steve Henson]
5984 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5986 *) Fix additional bug revealed by the NISCC test suite:
5988 Stop bug triggering large recursion when presented with
5989 certain ASN.1 tags (CVE-2003-0851)
5992 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5994 *) Fix various bugs revealed by running the NISCC test suite:
5996 Stop out of bounds reads in the ASN1 code when presented with
5997 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5999 If verify callback ignores invalid public key errors don't try to check
6000 certificate signature with the NULL public key.
6004 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
6005 if the server requested one: as stated in TLS 1.0 and SSL 3.0
6009 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
6010 extra data after the compression methods not only for TLS 1.0
6011 but also for SSL 3.0 (as required by the specification).
6012 [Bodo Moeller; problem pointed out by Matthias Loepfe]
6014 *) Change X509_certificate_type() to mark the key as exported/exportable
6015 when it's 512 *bits* long, not 512 bytes.
6018 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
6020 *) Countermeasure against the Klima-Pokorny-Rosa extension of
6021 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
6022 a protocol version number mismatch like a decryption error
6023 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
6026 *) Turn on RSA blinding by default in the default implementation
6027 to avoid a timing attack. Applications that don't want it can call
6028 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
6029 They would be ill-advised to do so in most cases.
6030 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
6032 *) Change RSA blinding code so that it works when the PRNG is not
6033 seeded (in this case, the secret RSA exponent is abused as
6034 an unpredictable seed -- if it is not unpredictable, there
6035 is no point in blinding anyway). Make RSA blinding thread-safe
6036 by remembering the creator's thread ID in rsa->blinding and
6037 having all other threads use local one-time blinding factors
6038 (this requires more computation than sharing rsa->blinding, but
6039 avoids excessive locking; and if an RSA object is not shared
6040 between threads, blinding will still be very fast).
6043 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
6045 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
6046 via timing by performing a MAC computation even if incorrrect
6047 block cipher padding has been found. This is a countermeasure
6048 against active attacks where the attacker has to distinguish
6049 between bad padding and a MAC verification error. (CVE-2003-0078)
6051 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
6052 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
6053 Martin Vuagnoux (EPFL, Ilion)]
6055 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
6057 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
6058 memory from it's contents. This is done with a counter that will
6059 place alternating values in each byte. This can be used to solve
6060 two issues: 1) the removal of calls to memset() by highly optimizing
6061 compilers, and 2) cleansing with other values than 0, since those can
6062 be read through on certain media, for example a swap space on disk.
6065 *) Bugfix: client side session caching did not work with external caching,
6066 because the session->cipher setting was not restored when reloading
6067 from the external cache. This problem was masked, when
6068 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
6069 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
6072 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
6073 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
6074 [Zeev Lieber <zeev-l@yahoo.com>]
6076 *) Undo an undocumented change introduced in 0.9.6e which caused
6077 repeated calls to OpenSSL_add_all_ciphers() and
6078 OpenSSL_add_all_digests() to be ignored, even after calling
6082 *) Change the default configuration reader to deal with last line not
6083 being properly terminated.
6086 *) Change X509_NAME_cmp() so it applies the special rules on handling
6087 DN values that are of type PrintableString, as well as RDNs of type
6088 emailAddress where the value has the type ia5String.
6089 [stefank@valicert.com via Richard Levitte]
6091 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
6092 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
6093 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
6094 the bitwise-OR of the two for use by the majority of applications
6095 wanting this behaviour, and update the docs. The documented
6096 behaviour and actual behaviour were inconsistent and had been
6097 changing anyway, so this is more a bug-fix than a behavioural
6099 [Geoff Thorpe, diagnosed by Nadav Har'El]
6101 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
6102 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
6105 *) Fix initialization code race conditions in
6106 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
6107 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
6108 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
6109 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
6110 ssl2_get_cipher_by_char(),
6111 ssl3_get_cipher_by_char().
6112 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
6114 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
6115 the cached sessions are flushed, as the remove_cb() might use ex_data
6116 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
6117 (see [openssl.org #212]).
6118 [Geoff Thorpe, Lutz Jaenicke]
6120 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
6121 length, instead of the encoding length to d2i_ASN1_OBJECT.
6124 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
6126 *) [In 0.9.6g-engine release:]
6127 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
6128 [Lynn Gazis <lgazis@rainbow.com>]
6130 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
6132 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
6133 and get fix the header length calculation.
6134 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
6135 Alon Kantor <alonk@checkpoint.com> (and others),
6138 *) Use proper error handling instead of 'assertions' in buffer
6139 overflow checks added in 0.9.6e. This prevents DoS (the
6140 assertions could call abort()).
6141 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
6143 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
6145 *) Add various sanity checks to asn1_get_length() to reject
6146 the ASN1 length bytes if they exceed sizeof(long), will appear
6147 negative or the content length exceeds the length of the
6149 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
6151 *) Fix cipher selection routines: ciphers without encryption had no flags
6152 for the cipher strength set and where therefore not handled correctly
6153 by the selection routines (PR #130).
6156 *) Fix EVP_dsa_sha macro.
6160 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
6161 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
6162 that was added in OpenSSL 0.9.6d.
6164 As the countermeasure turned out to be incompatible with some
6165 broken SSL implementations, the new option is part of SSL_OP_ALL.
6166 SSL_OP_ALL is usually employed when compatibility with weird SSL
6167 implementations is desired (e.g. '-bugs' option to 's_client' and
6168 's_server'), so the new option is automatically set in many
6172 *) Changes in security patch:
6174 Changes marked "(CHATS)" were sponsored by the Defense Advanced
6175 Research Projects Agency (DARPA) and Air Force Research Laboratory,
6176 Air Force Materiel Command, USAF, under agreement number
6179 *) Add various sanity checks to asn1_get_length() to reject
6180 the ASN1 length bytes if they exceed sizeof(long), will appear
6181 negative or the content length exceeds the length of the
6182 supplied buffer. (CVE-2002-0659)
6183 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
6185 *) Assertions for various potential buffer overflows, not known to
6187 [Ben Laurie (CHATS)]
6189 *) Various temporary buffers to hold ASCII versions of integers were
6190 too small for 64 bit platforms. (CVE-2002-0655)
6191 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
6193 *) Remote buffer overflow in SSL3 protocol - an attacker could
6194 supply an oversized session ID to a client. (CVE-2002-0656)
6195 [Ben Laurie (CHATS)]
6197 *) Remote buffer overflow in SSL2 protocol - an attacker could
6198 supply an oversized client master key. (CVE-2002-0656)
6199 [Ben Laurie (CHATS)]
6201 Changes between 0.9.6c and 0.9.6d [9 May 2002]
6203 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
6204 encoded as NULL) with id-dsa-with-sha1.
6205 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
6207 *) Check various X509_...() return values in apps/req.c.
6208 [Nils Larsch <nla@trustcenter.de>]
6210 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
6211 an end-of-file condition would erronously be flagged, when the CRLF
6212 was just at the end of a processed block. The bug was discovered when
6213 processing data through a buffering memory BIO handing the data to a
6214 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
6215 <ptsekov@syntrex.com> and Nedelcho Stanev.
6218 *) Implement a countermeasure against a vulnerability recently found
6219 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
6220 before application data chunks to avoid the use of known IVs
6221 with data potentially chosen by the attacker.
6224 *) Fix length checks in ssl3_get_client_hello().
6227 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
6228 to prevent ssl3_read_internal() from incorrectly assuming that
6229 ssl3_read_bytes() found application data while handshake
6230 processing was enabled when in fact s->s3->in_read_app_data was
6231 merely automatically cleared during the initial handshake.
6232 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
6234 *) Fix object definitions for Private and Enterprise: they were not
6235 recognized in their shortname (=lowercase) representation. Extend
6236 obj_dat.pl to issue an error when using undefined keywords instead
6237 of silently ignoring the problem (Svenning Sorensen
6238 <sss@sss.dnsalias.net>).
6241 *) Fix DH_generate_parameters() so that it works for 'non-standard'
6242 generators, i.e. generators other than 2 and 5. (Previously, the
6243 code did not properly initialise the 'add' and 'rem' values to
6244 BN_generate_prime().)
6246 In the new general case, we do not insist that 'generator' is
6247 actually a primitive root: This requirement is rather pointless;
6248 a generator of the order-q subgroup is just as good, if not
6252 *) Map new X509 verification errors to alerts. Discovered and submitted by
6253 Tom Wu <tom@arcot.com>.
6256 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
6257 returning non-zero before the data has been completely received
6258 when using non-blocking I/O.
6259 [Bodo Moeller; problem pointed out by John Hughes]
6261 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
6262 [Ben Laurie, Lutz Jaenicke]
6264 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
6265 Yoram Zahavi <YoramZ@gilian.com>).
6268 *) Add information about CygWin 1.3 and on, and preserve proper
6269 configuration for the versions before that.
6270 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
6272 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
6273 check whether we deal with a copy of a session and do not delete from
6274 the cache in this case. Problem reported by "Izhar Shoshani Levi"
6275 <izhar@checkpoint.com>.
6278 *) Do not store session data into the internal session cache, if it
6279 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
6280 flag is set). Proposed by Aslam <aslam@funk.com>.
6283 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
6287 *) [In 0.9.6d-engine release:]
6288 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
6289 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
6291 *) Add the configuration target linux-s390x.
6292 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
6294 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
6295 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
6296 variable as an indication that a ClientHello message has been
6297 received. As the flag value will be lost between multiple
6298 invocations of ssl3_accept when using non-blocking I/O, the
6299 function may not be aware that a handshake has actually taken
6300 place, thus preventing a new session from being added to the
6303 To avoid this problem, we now set s->new_session to 2 instead of
6304 using a local variable.
6305 [Lutz Jaenicke, Bodo Moeller]
6307 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
6308 if the SSL_R_LENGTH_MISMATCH error is detected.
6309 [Geoff Thorpe, Bodo Moeller]
6311 *) New 'shared_ldflag' column in Configure platform table.
6314 *) Fix EVP_CIPHER_mode macro.
6315 ["Dan S. Camper" <dan@bti.net>]
6317 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
6318 type, we must throw them away by setting rr->length to 0.
6319 [D P Chang <dpc@qualys.com>]
6321 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
6323 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
6324 <Dominikus.Scherkl@biodata.com>. (The previous implementation
6325 worked incorrectly for those cases where range = 10..._2 and
6326 3*range is two bits longer than range.)
6329 *) Only add signing time to PKCS7 structures if it is not already
6333 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
6334 OBJ_ld_ce should be OBJ_id_ce.
6335 Also some ip-pda OIDs in crypto/objects/objects.txt were
6336 incorrect (cf. RFC 3039).
6337 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
6339 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
6340 returns early because it has nothing to do.
6341 [Andy Schneider <andy.schneider@bjss.co.uk>]
6343 *) [In 0.9.6c-engine release:]
6344 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
6345 [Andy Schneider <andy.schneider@bjss.co.uk>]
6347 *) [In 0.9.6c-engine release:]
6348 Add support for Cryptographic Appliance's keyserver technology.
6349 (Use engine 'keyclient')
6350 [Cryptographic Appliances and Geoff Thorpe]
6352 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
6353 is called via tools/c89.sh because arguments have to be
6354 rearranged (all '-L' options must appear before the first object
6356 [Richard Shapiro <rshapiro@abinitio.com>]
6358 *) [In 0.9.6c-engine release:]
6359 Add support for Broadcom crypto accelerator cards, backported
6361 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
6363 *) [In 0.9.6c-engine release:]
6364 Add support for SureWare crypto accelerator cards from
6365 Baltimore Technologies. (Use engine 'sureware')
6366 [Baltimore Technologies and Mark Cox]
6368 *) [In 0.9.6c-engine release:]
6369 Add support for crypto accelerator cards from Accelerated
6370 Encryption Processing, www.aep.ie. (Use engine 'aep')
6371 [AEP Inc. and Mark Cox]
6373 *) Add a configuration entry for gcc on UnixWare.
6374 [Gary Benson <gbenson@redhat.com>]
6376 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
6377 messages are stored in a single piece (fixed-length part and
6378 variable-length part combined) and fix various bugs found on the way.
6381 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
6382 instead. BIO_gethostbyname() does not know what timeouts are
6383 appropriate, so entries would stay in cache even when they have
6385 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
6387 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
6388 faced with a pathologically small ClientHello fragment that does
6389 not contain client_version: Instead of aborting with an error,
6390 simply choose the highest available protocol version (i.e.,
6391 TLS 1.0 unless it is disabled). In practice, ClientHello
6392 messages are never sent like this, but this change gives us
6393 strictly correct behaviour at least for TLS.
6396 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
6397 never resets s->method to s->ctx->method when called from within
6398 one of the SSL handshake functions.
6399 [Bodo Moeller; problem pointed out by Niko Baric]
6401 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
6402 (sent using the client's version number) if client_version is
6403 smaller than the protocol version in use. Also change
6404 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
6405 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
6406 the client will at least see that alert.
6409 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
6413 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
6414 client receives HelloRequest while in a handshake.
6415 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
6417 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
6418 should end in 'break', not 'goto end' which circuments various
6419 cleanups done in state SSL_ST_OK. But session related stuff
6420 must be disabled for SSL_ST_OK in the case that we just sent a
6423 Also avoid some overhead by not calling ssl_init_wbio_buffer()
6424 before just sending a HelloRequest.
6425 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
6427 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
6428 reveal whether illegal block cipher padding was found or a MAC
6429 verification error occured. (Neither SSLerr() codes nor alerts
6430 are directly visible to potential attackers, but the information
6431 may leak via logfiles.)
6433 Similar changes are not required for the SSL 2.0 implementation
6434 because the number of padding bytes is sent in clear for SSL 2.0,
6435 and the extra bytes are just ignored. However ssl/s2_pkt.c
6436 failed to verify that the purported number of padding bytes is in
6440 *) Add OpenUNIX-8 support including shared libraries
6441 (Boyd Lynn Gerber <gerberb@zenez.com>).
6444 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
6445 'wristwatch attack' using huge encoding parameters (cf.
6446 James H. Manger's CRYPTO 2001 paper). Note that the
6447 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
6448 encoding parameters and hence was not vulnerable.
6451 *) BN_sqr() bug fix.
6452 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
6454 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
6455 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
6456 followed by modular reduction.
6457 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
6459 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
6460 equivalent based on BN_pseudo_rand() instead of BN_rand().
6463 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
6464 This function was broken, as the check for a new client hello message
6465 to handle SGC did not allow these large messages.
6466 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
6469 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
6472 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
6473 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
6476 *) Rework the configuration and shared library support for Tru64 Unix.
6477 The configuration part makes use of modern compiler features and
6478 still retains old compiler behavior for those that run older versions
6479 of the OS. The shared library support part includes a variant that
6480 uses the RPATH feature, and is available through the special
6481 configuration target "alpha-cc-rpath", which will never be selected
6483 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
6485 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
6486 with the same message size as in ssl3_get_certificate_request().
6487 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
6488 messages might inadvertently be reject as too long.
6489 [Petr Lampa <lampa@fee.vutbr.cz>]
6491 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
6494 *) Modified SSL library such that the verify_callback that has been set
6495 specificly for an SSL object with SSL_set_verify() is actually being
6496 used. Before the change, a verify_callback set with this function was
6497 ignored and the verify_callback() set in the SSL_CTX at the time of
6498 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
6499 to allow the necessary settings.
6502 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
6503 explicitly to NULL, as at least on Solaris 8 this seems not always to be
6504 done automatically (in contradiction to the requirements of the C
6505 standard). This made problems when used from OpenSSH.
6508 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
6509 dh->length and always used
6511 BN_rand_range(priv_key, dh->p).
6513 BN_rand_range() is not necessary for Diffie-Hellman, and this
6514 specific range makes Diffie-Hellman unnecessarily inefficient if
6515 dh->length (recommended exponent length) is much smaller than the
6516 length of dh->p. We could use BN_rand_range() if the order of
6517 the subgroup was stored in the DH structure, but we only have
6522 BN_rand(priv_key, l, ...)
6524 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
6530 RSA_eay_public_encrypt
6531 RSA_eay_private_decrypt
6532 RSA_eay_private_encrypt (signing)
6533 RSA_eay_public_decrypt (signature verification)
6535 (default implementations for RSA_public_encrypt,
6536 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
6537 always reject numbers >= n.
6540 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
6541 to synchronize access to 'locking_thread'. This is necessary on
6542 systems where access to 'locking_thread' (an 'unsigned long'
6543 variable) is not atomic.
6546 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
6547 *before* setting the 'crypto_lock_rand' flag. The previous code had
6548 a race condition if 0 is a valid thread ID.
6549 [Travis Vitek <vitek@roguewave.com>]
6551 *) Add support for shared libraries under Irix.
6552 [Albert Chin-A-Young <china@thewrittenword.com>]
6554 *) Add configuration option to build on Linux on both big-endian and
6556 [Ralf Baechle <ralf@uni-koblenz.de>]
6558 *) Add the possibility to create shared libraries on HP-UX.
6561 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
6563 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
6564 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
6565 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
6566 PRNG state recovery was possible based on the output of
6567 one PRNG request appropriately sized to gain knowledge on
6568 'md' followed by enough consecutive 1-byte PRNG requests
6569 to traverse all of 'state'.
6571 1. When updating 'md_local' (the current thread's copy of 'md')
6572 during PRNG output generation, hash all of the previous
6573 'md_local' value, not just the half used for PRNG output.
6575 2. Make the number of bytes from 'state' included into the hash
6576 independent from the number of PRNG bytes requested.
6578 The first measure alone would be sufficient to avoid
6579 Markku-Juhani's attack. (Actually it had never occurred
6580 to me that the half of 'md_local' used for chaining was the
6581 half from which PRNG output bytes were taken -- I had always
6582 assumed that the secret half would be used.) The second
6583 measure makes sure that additional data from 'state' is never
6584 mixed into 'md_local' in small portions; this heuristically
6585 further strengthens the PRNG.
6588 *) Fix crypto/bn/asm/mips3.s.
6591 *) When only the key is given to "enc", the IV is undefined. Print out
6592 an error message in this case.
6595 *) Handle special case when X509_NAME is empty in X509 printing routines.
6598 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
6599 positive and less than q.
6602 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
6603 used: it isn't thread safe and the add_lock_callback should handle
6605 [Paul Rose <Paul.Rose@bridge.com>]
6607 *) Verify that incoming data obeys the block size in
6608 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
6612 [Ulf Möller, Bodo Möller]
6614 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
6615 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
6616 when fixing the server behaviour for backwards-compatible 'client
6617 hello' messages. (Note that the attack is impractical against
6618 SSL 3.0 and TLS 1.0 anyway because length and version checking
6619 means that the probability of guessing a valid ciphertext is
6620 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
6623 Before 0.9.5, the countermeasure (hide the error by generating a
6624 random 'decryption result') did not work properly because
6625 ERR_clear_error() was missing, meaning that SSL_get_error() would
6626 detect the supposedly ignored error.
6628 Both problems are now fixed.
6631 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
6632 (previously it was 1024).
6635 *) Fix for compatibility mode trust settings: ignore trust settings
6636 unless some valid trust or reject settings are present.
6639 *) Fix for blowfish EVP: its a variable length cipher.
6642 *) Fix various bugs related to DSA S/MIME verification. Handle missing
6643 parameters in DSA public key structures and return an error in the
6644 DSA routines if parameters are absent.
6647 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
6648 in the current directory if neither $RANDFILE nor $HOME was set.
6649 RAND_file_name() in 0.9.6a returned NULL in this case. This has
6650 caused some confusion to Windows users who haven't defined $HOME.
6651 Thus RAND_file_name() is changed again: e_os.h can define a
6652 DEFAULT_HOME, which will be used if $HOME is not set.
6653 For Windows, we use "C:"; on other platforms, we still require
6654 environment variables.
6656 *) Move 'if (!initialized) RAND_poll()' into regions protected by
6657 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
6658 having multiple threads call RAND_poll() concurrently.
6661 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
6662 combination of a flag and a thread ID variable.
6663 Otherwise while one thread is in ssleay_rand_bytes (which sets the
6664 flag), *other* threads can enter ssleay_add_bytes without obeying
6665 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
6666 that they do not hold after the first thread unsets add_do_not_lock).
6669 *) Change bctest again: '-x' expressions are not available in all
6673 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
6675 *) Fix a couple of memory leaks in PKCS7_dataDecode()
6676 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
6678 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
6679 the default extension for executables, if any. Also, make the perl
6680 scripts that use symlink() to test if it really exists and use "cp"
6681 if it doesn't. All this made OpenSSL compilable and installable in
6685 *) Fix for asn1_GetSequence() for indefinite length constructed data.
6686 If SEQUENCE is length is indefinite just set c->slen to the total
6687 amount of data available.
6688 [Steve Henson, reported by shige@FreeBSD.org]
6689 [This change does not apply to 0.9.7.]
6691 *) Change bctest to avoid here-documents inside command substitution
6692 (workaround for FreeBSD /bin/sh bug).
6693 For compatibility with Ultrix, avoid shell functions (introduced
6694 in the bctest version that searches along $PATH).
6697 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
6698 with des_encrypt() defined on some operating systems, like Solaris
6702 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
6703 On the Importance of Eliminating Errors in Cryptographic
6704 Computations, J. Cryptology 14 (2001) 2, 101-119,
6705 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
6708 *) MIPS assembler BIGNUM division bug fix.
6711 *) Disabled incorrect Alpha assembler code.
6714 *) Fix PKCS#7 decode routines so they correctly update the length
6715 after reading an EOC for the EXPLICIT tag.
6717 [This change does not apply to 0.9.7.]
6719 *) Fix bug in PKCS#12 key generation routines. This was triggered
6720 if a 3DES key was generated with a 0 initial byte. Include
6721 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6722 (but broken) behaviour.
6725 *) Enhance bctest to search for a working bc along $PATH and print
6727 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6729 *) Fix memory leaks in err.c: free err_data string if necessary;
6730 don't write to the wrong index in ERR_set_error_data.
6733 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6737 *) Replace rdtsc with _emit statements for VC++ version 5.
6738 [Jeremy Cooper <jeremy@baymoo.org>]
6740 *) Make it possible to reuse SSLv2 sessions.
6743 *) In copy_email() check for >= 0 as a return value for
6744 X509_NAME_get_index_by_NID() since 0 is a valid index.
6745 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6747 *) Avoid coredump with unsupported or invalid public keys by checking if
6748 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6749 PKCS7_verify() fails with non detached data.
6752 *) Don't use getenv in library functions when run as setuid/setgid.
6753 New function OPENSSL_issetugid().
6756 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6757 due to incorrect handling of multi-threading:
6759 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6761 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6763 3. Count how many times MemCheck_off() has been called so that
6764 nested use can be treated correctly. This also avoids
6765 inband-signalling in the previous code (which relied on the
6766 assumption that thread ID 0 is impossible).
6769 *) Add "-rand" option also to s_client and s_server.
6772 *) Fix CPU detection on Irix 6.x.
6773 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6774 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6776 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6779 [This change does not apply to 0.9.7.]
6781 *) Use the cached encoding of an X509_NAME structure rather than
6782 copying it. This is apparently the reason for the libsafe "errors"
6783 but the code is actually correct.
6786 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6787 Bleichenbacher's DSA attack.
6788 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6789 to be set and top=0 forces the highest bit to be set; top=-1 is new
6790 and leaves the highest bit random.
6791 [Ulf Moeller, Bodo Moeller]
6793 *) In the NCONF_...-based implementations for CONF_... queries
6794 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6795 a temporary CONF structure with the data component set to NULL
6796 (which gives segmentation faults in lh_retrieve).
6797 Instead, use NULL for the CONF pointer in CONF_get_string and
6798 CONF_get_number (which may use environment variables) and directly
6799 return NULL from CONF_get_section.
6802 *) Fix potential buffer overrun for EBCDIC.
6805 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6806 keyUsage if basicConstraints absent for a CA.
6809 *) Make SMIME_write_PKCS7() write mail header values with a format that
6810 is more generally accepted (no spaces before the semicolon), since
6811 some programs can't parse those values properly otherwise. Also make
6812 sure BIO's that break lines after each write do not create invalid
6816 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6817 macros previously used would not encode an empty SEQUENCE OF
6818 and break the signature.
6820 [This change does not apply to 0.9.7.]
6822 *) Zero the premaster secret after deriving the master secret in
6826 *) Add some EVP_add_digest_alias registrations (as found in
6827 OpenSSL_add_all_digests()) to SSL_library_init()
6828 aka OpenSSL_add_ssl_algorithms(). This provides improved
6829 compatibility with peers using X.509 certificates
6830 with unconventional AlgorithmIdentifier OIDs.
6833 *) Fix for Irix with NO_ASM.
6834 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6836 *) ./config script fixes.
6837 [Ulf Moeller, Richard Levitte]
6839 *) Fix 'openssl passwd -1'.
6842 *) Change PKCS12_key_gen_asc() so it can cope with non null
6843 terminated strings whose length is passed in the passlen
6844 parameter, for example from PEM callbacks. This was done
6845 by adding an extra length parameter to asc2uni().
6846 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6848 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6849 call failed, free the DSA structure.
6852 *) Fix to uni2asc() to cope with zero length Unicode strings.
6853 These are present in some PKCS#12 files.
6856 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6857 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6858 when writing a 32767 byte record.
6859 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6861 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6862 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6864 (RSA objects have a reference count access to which is protected
6865 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6866 so they are meant to be shared between threads.)
6867 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6868 "Reddie, Steven" <Steven.Reddie@ca.com>]
6870 *) Fix a deadlock in CRYPTO_mem_leaks().
6873 *) Use better test patterns in bntest.
6876 *) rand_win.c fix for Borland C.
6879 *) BN_rshift bugfix for n == 0.
6882 *) Add a 'bctest' script that checks for some known 'bc' bugs
6883 so that 'make test' does not abort just because 'bc' is broken.
6886 *) Store verify_result within SSL_SESSION also for client side to
6887 avoid potential security hole. (Re-used sessions on the client side
6888 always resulted in verify_result==X509_V_OK, not using the original
6889 result of the server certificate verification.)
6892 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6893 SSL3_RT_APPLICATION_DATA, return 0.
6894 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6898 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6899 releases, have been re-implemented by renaming the previous
6900 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6901 and ssl3_read_internal, respectively, and adding 'peek' parameters
6902 to them. The new ssl[23]_{read,peek} functions are calls to
6903 ssl[23]_read_internal with the 'peek' flag set appropriately.
6904 A 'peek' parameter has also been added to ssl3_read_bytes, which
6905 does the actual work for ssl3_read_internal.
6908 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6909 the method-specific "init()" handler. Also clean up ex_data after
6910 calling the method-specific "finish()" handler. Previously, this was
6911 happening the other way round.
6914 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6915 The previous value, 12, was not always sufficient for BN_mod_exp().
6918 *) Make sure that shared libraries get the internal name engine with
6919 the full version number and not just 0. This should mark the
6920 shared libraries as not backward compatible. Of course, this should
6921 be changed again when we can guarantee backward binary compatibility.
6924 *) Fix typo in get_cert_by_subject() in by_dir.c
6925 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6927 *) Rework the system to generate shared libraries:
6929 - Make note of the expected extension for the shared libraries and
6930 if there is a need for symbolic links from for example libcrypto.so.0
6931 to libcrypto.so.0.9.7. There is extended info in Configure for
6934 - Make as few rebuilds of the shared libraries as possible.
6936 - Still avoid linking the OpenSSL programs with the shared libraries.
6938 - When installing, install the shared libraries separately from the
6942 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6944 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6945 and not in SSL_clear because the latter is also used by the
6946 accept/connect functions; previously, the settings made by
6947 SSL_set_read_ahead would be lost during the handshake.
6948 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6950 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6951 Previously, it would create entries for disableed algorithms no
6955 *) Added several new manual pages for SSL_* function.
6958 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6960 *) In ssl23_get_client_hello, generate an error message when faced
6961 with an initial SSL 3.0/TLS record that is too small to contain the
6962 first two bytes of the ClientHello message, i.e. client_version.
6963 (Note that this is a pathologic case that probably has never happened
6964 in real life.) The previous approach was to use the version number
6965 from the record header as a substitute; but our protocol choice
6966 should not depend on that one because it is not authenticated
6967 by the Finished messages.
6970 *) More robust randomness gathering functions for Windows.
6971 [Jeffrey Altman <jaltman@columbia.edu>]
6973 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6974 not set then we don't setup the error code for issuer check errors
6975 to avoid possibly overwriting other errors which the callback does
6976 handle. If an application does set the flag then we assume it knows
6977 what it is doing and can handle the new informational codes
6981 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6982 a general "ANY" type, as such it should be able to decode anything
6983 including tagged types. However it didn't check the class so it would
6984 wrongly interpret tagged types in the same way as their universal
6985 counterpart and unknown types were just rejected. Changed so that the
6986 tagged and unknown types are handled in the same way as a SEQUENCE:
6987 that is the encoding is stored intact. There is also a new type
6988 "V_ASN1_OTHER" which is used when the class is not universal, in this
6989 case we have no idea what the actual type is so we just lump them all
6993 *) On VMS, stdout may very well lead to a file that is written to
6994 in a record-oriented fashion. That means that every write() will
6995 write a separate record, which will be read separately by the
6996 programs trying to read from it. This can be very confusing.
6998 The solution is to put a BIO filter in the way that will buffer
6999 text until a linefeed is reached, and then write everything a
7000 line at a time, so every record written will be an actual line,
7001 not chunks of lines and not (usually doesn't happen, but I've
7002 seen it once) several lines in one record. BIO_f_linebuffer() is
7005 Currently, it's a VMS-only method, because that's where it has
7006 been tested well enough.
7009 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
7010 it can return incorrect results.
7011 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
7012 but it was in 0.9.6-beta[12].)
7015 *) Disable the check for content being present when verifying detached
7016 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
7017 include zero length content when signing messages.
7020 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
7021 BIO_ctrl (for BIO pairs).
7024 *) Add DSO method for VMS.
7027 *) Bug fix: Montgomery multiplication could produce results with the
7031 *) Add RPM specification openssl.spec and modify it to build three
7032 packages. The default package contains applications, application
7033 documentation and run-time libraries. The devel package contains
7034 include files, static libraries and function documentation. The
7035 doc package contains the contents of the doc directory. The original
7036 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
7039 *) Add a large number of documentation files for many SSL routines.
7040 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7042 *) Add a configuration entry for Sony News 4.
7043 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
7045 *) Don't set the two most significant bits to one when generating a
7046 random number < q in the DSA library.
7049 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
7050 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
7051 the underlying transport is blocking) if a handshake took place.
7052 (The default behaviour is needed by applications such as s_client
7053 and s_server that use select() to determine when to use SSL_read;
7054 but for applications that know in advance when to expect data, it
7055 just makes things more complicated.)
7058 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
7062 *) Add a few more EBCDIC conditionals that make `req' and `x509'
7063 work better on such systems.
7064 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7066 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
7067 Update PKCS12_parse() so it copies the friendlyName and the
7068 keyid to the certificates aux info.
7071 *) Fix bug in PKCS7_verify() which caused an infinite loop
7072 if there was more than one signature.
7073 [Sven Uszpelkat <su@celocom.de>]
7075 *) Major change in util/mkdef.pl to include extra information
7076 about each symbol, as well as presentig variables as well
7077 as functions. This change means that there's n more need
7078 to rebuild the .num files when some algorithms are excluded.
7081 *) Allow the verify time to be set by an application,
7082 rather than always using the current time.
7085 *) Phase 2 verify code reorganisation. The certificate
7086 verify code now looks up an issuer certificate by a
7087 number of criteria: subject name, authority key id
7088 and key usage. It also verifies self signed certificates
7089 by the same criteria. The main comparison function is
7090 X509_check_issued() which performs these checks.
7092 Lot of changes were necessary in order to support this
7093 without completely rewriting the lookup code.
7095 Authority and subject key identifier are now cached.
7097 The LHASH 'certs' is X509_STORE has now been replaced
7098 by a STACK_OF(X509_OBJECT). This is mainly because an
7099 LHASH can't store or retrieve multiple objects with
7100 the same hash value.
7102 As a result various functions (which were all internal
7103 use only) have changed to handle the new X509_STORE
7104 structure. This will break anything that messed round
7105 with X509_STORE internally.
7107 The functions X509_STORE_add_cert() now checks for an
7108 exact match, rather than just subject name.
7110 The X509_STORE API doesn't directly support the retrieval
7111 of multiple certificates matching a given criteria, however
7112 this can be worked round by performing a lookup first
7113 (which will fill the cache with candidate certificates)
7114 and then examining the cache for matches. This is probably
7115 the best we can do without throwing out X509_LOOKUP
7116 entirely (maybe later...).
7118 The X509_VERIFY_CTX structure has been enhanced considerably.
7120 All certificate lookup operations now go via a get_issuer()
7121 callback. Although this currently uses an X509_STORE it
7122 can be replaced by custom lookups. This is a simple way
7123 to bypass the X509_STORE hackery necessary to make this
7124 work and makes it possible to use more efficient techniques
7125 in future. A very simple version which uses a simple
7126 STACK for its trusted certificate store is also provided
7127 using X509_STORE_CTX_trusted_stack().
7129 The verify_cb() and verify() callbacks now have equivalents
7130 in the X509_STORE_CTX structure.
7132 X509_STORE_CTX also has a 'flags' field which can be used
7133 to customise the verify behaviour.
7136 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
7137 excludes S/MIME capabilities.
7140 *) When a certificate request is read in keep a copy of the
7141 original encoding of the signed data and use it when outputing
7142 again. Signatures then use the original encoding rather than
7143 a decoded, encoded version which may cause problems if the
7144 request is improperly encoded.
7147 *) For consistency with other BIO_puts implementations, call
7148 buffer_write(b, ...) directly in buffer_puts instead of calling
7151 In BIO_puts, increment b->num_write as in BIO_write.
7152 [Peter.Sylvester@EdelWeb.fr]
7154 *) Fix BN_mul_word for the case where the word is 0. (We have to use
7155 BN_zero, we may not return a BIGNUM with an array consisting of
7159 *) Avoid calling abort() from within the library when problems are
7160 detected, except if preprocessor symbols have been defined
7161 (such as REF_CHECK, BN_DEBUG etc.).
7164 *) New openssl application 'rsautl'. This utility can be
7165 used for low level RSA operations. DER public key
7166 BIO/fp routines also added.
7169 *) New Configure entry and patches for compiling on QNX 4.
7170 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
7172 *) A demo state-machine implementation was sponsored by
7173 Nuron (http://www.nuron.com/) and is now available in
7174 demos/state_machine.
7177 *) New options added to the 'dgst' utility for signature
7178 generation and verification.
7181 *) Unrecognized PKCS#7 content types are now handled via a
7182 catch all ASN1_TYPE structure. This allows unsupported
7183 types to be stored as a "blob" and an application can
7184 encode and decode it manually.
7187 *) Fix various signed/unsigned issues to make a_strex.c
7189 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
7191 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
7192 length if passed a buffer. ASN1_INTEGER_to_BN failed
7193 if passed a NULL BN and its argument was negative.
7194 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
7196 *) Modification to PKCS#7 encoding routines to output definite
7197 length encoding. Since currently the whole structures are in
7198 memory there's not real point in using indefinite length
7199 constructed encoding. However if OpenSSL is compiled with
7200 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
7203 *) Added BIO_vprintf() and BIO_vsnprintf().
7206 *) Added more prefixes to parse for in the the strings written
7207 through a logging bio, to cover all the levels that are available
7208 through syslog. The prefixes are now:
7210 PANIC, EMERG, EMR => LOG_EMERG
7211 ALERT, ALR => LOG_ALERT
7212 CRIT, CRI => LOG_CRIT
7213 ERROR, ERR => LOG_ERR
7214 WARNING, WARN, WAR => LOG_WARNING
7215 NOTICE, NOTE, NOT => LOG_NOTICE
7216 INFO, INF => LOG_INFO
7217 DEBUG, DBG => LOG_DEBUG
7219 and as before, if none of those prefixes are present at the
7220 beginning of the string, LOG_ERR is chosen.
7222 On Win32, the LOG_* levels are mapped according to this:
7224 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
7225 LOG_WARNING => EVENTLOG_WARNING_TYPE
7226 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
7230 *) Made it possible to reconfigure with just the configuration
7231 argument "reconf" or "reconfigure". The command line arguments
7232 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
7233 and are retrieved from there when reconfiguring.
7237 [Assar Westerlund <assar@sics.se>, Richard Levitte]
7239 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
7242 *) The obj_dat.pl script was messing up the sorting of object
7243 names. The reason was that it compared the quoted version
7244 of strings as a result "OCSP" > "OCSP Signing" because
7245 " > SPACE. Changed script to store unquoted versions of
7246 names and add quotes on output. It was also omitting some
7247 names from the lookup table if they were given a default
7248 value (that is if SN is missing it is given the same
7249 value as LN and vice versa), these are now added on the
7250 grounds that if an object has a name we should be able to
7251 look it up. Finally added warning output when duplicate
7252 short or long names are found.
7255 *) Changes needed for Tandem NSK.
7256 [Scott Uroff <scott@xypro.com>]
7258 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
7259 RSA_padding_check_SSLv23(), special padding was never detected
7260 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
7261 version rollback attacks was not effective.
7263 In s23_clnt.c, don't use special rollback-attack detection padding
7264 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
7265 client; similarly, in s23_srvr.c, don't do the rollback check if
7266 SSL 2.0 is the only protocol enabled in the server.
7269 *) Make it possible to get hexdumps of unprintable data with 'openssl
7270 asn1parse'. By implication, the functions ASN1_parse_dump() and
7271 BIO_dump_indent() are added.
7274 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
7275 these print out strings and name structures based on various
7276 flags including RFC2253 support and proper handling of
7277 multibyte characters. Added options to the 'x509' utility
7278 to allow the various flags to be set.
7281 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
7282 Also change the functions X509_cmp_current_time() and
7283 X509_gmtime_adj() work with an ASN1_TIME structure,
7284 this will enable certificates using GeneralizedTime in validity
7285 dates to be checked.
7288 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
7289 negative public key encodings) on by default,
7290 NO_NEG_PUBKEY_BUG can be set to disable it.
7293 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
7294 content octets. An i2c_ASN1_OBJECT is unnecessary because
7295 the encoding can be trivially obtained from the structure.
7298 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
7299 not read locks (CRYPTO_r_[un]lock).
7302 *) A first attempt at creating official support for shared
7303 libraries through configuration. I've kept it so the
7304 default is static libraries only, and the OpenSSL programs
7305 are always statically linked for now, but there are
7306 preparations for dynamic linking in place.
7307 This has been tested on Linux and Tru64.
7310 *) Randomness polling function for Win9x, as described in:
7311 Peter Gutmann, Software Generation of Practically Strong
7315 *) Fix so PRNG is seeded in req if using an already existing
7319 *) New options to smime application. -inform and -outform
7320 allow alternative formats for the S/MIME message including
7321 PEM and DER. The -content option allows the content to be
7322 specified separately. This should allow things like Netscape
7323 form signing output easier to verify.
7326 *) Fix the ASN1 encoding of tags using the 'long form'.
7329 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
7330 STRING types. These convert content octets to and from the
7331 underlying type. The actual tag and length octets are
7332 already assumed to have been read in and checked. These
7333 are needed because all other string types have virtually
7334 identical handling apart from the tag. By having versions
7335 of the ASN1 functions that just operate on content octets
7336 IMPLICIT tagging can be handled properly. It also allows
7337 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
7338 and ASN1_INTEGER are identical apart from the tag.
7341 *) Change the handling of OID objects as follows:
7343 - New object identifiers are inserted in objects.txt, following
7344 the syntax given in objects.README.
7345 - objects.pl is used to process obj_mac.num and create a new
7347 - obj_dat.pl is used to create a new obj_dat.h, using the data in
7350 This is currently kind of a hack, and the perl code in objects.pl
7351 isn't very elegant, but it works as I intended. The simplest way
7352 to check that it worked correctly is to look in obj_dat.h and
7353 check the array nid_objs and make sure the objects haven't moved
7354 around (this is important!). Additions are OK, as well as
7355 consistent name changes.
7358 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
7361 *) Addition of the command line parameter '-rand file' to 'openssl req'.
7362 The given file adds to whatever has already been seeded into the
7363 random pool through the RANDFILE configuration file option or
7364 environment variable, or the default random state file.
7367 *) mkstack.pl now sorts each macro group into lexical order.
7368 Previously the output order depended on the order the files
7369 appeared in the directory, resulting in needless rewriting
7373 *) Patches to make OpenSSL compile under Win32 again. Mostly
7374 work arounds for the VC++ problem that it treats func() as
7375 func(void). Also stripped out the parts of mkdef.pl that
7376 added extra typesafe functions: these no longer exist.
7379 *) Reorganisation of the stack code. The macros are now all
7380 collected in safestack.h . Each macro is defined in terms of
7381 a "stack macro" of the form SKM_<name>(type, a, b). The
7382 DEBUG_SAFESTACK is now handled in terms of function casts,
7383 this has the advantage of retaining type safety without the
7384 use of additional functions. If DEBUG_SAFESTACK is not defined
7385 then the non typesafe macros are used instead. Also modified the
7386 mkstack.pl script to handle the new form. Needs testing to see
7387 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
7388 the default if no major problems. Similar behaviour for ASN1_SET_OF
7389 and PKCS12_STACK_OF.
7392 *) When some versions of IIS use the 'NET' form of private key the
7393 key derivation algorithm is different. Normally MD5(password) is
7394 used as a 128 bit RC4 key. In the modified case
7395 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
7396 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
7397 as the old Netscape_RSA functions except they have an additional
7398 'sgckey' parameter which uses the modified algorithm. Also added
7399 an -sgckey command line option to the rsa utility. Thanks to
7400 Adrian Peck <bertie@ncipher.com> for posting details of the modified
7401 algorithm to openssl-dev.
7404 *) The evp_local.h macros were using 'c.##kname' which resulted in
7405 invalid expansion on some systems (SCO 5.0.5 for example).
7406 Corrected to 'c.kname'.
7407 [Phillip Porch <root@theporch.com>]
7409 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
7410 a STACK of email addresses from a certificate or request, these look
7411 in the subject name and the subject alternative name extensions and
7412 omit any duplicate addresses.
7415 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
7416 This makes DSA verification about 2 % faster.
7419 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
7420 (meaning that now 2^5 values will be precomputed, which is only 4 KB
7421 plus overhead for 1024 bit moduli).
7422 This makes exponentiations about 0.5 % faster for 1024 bit
7423 exponents (as measured by "openssl speed rsa2048").
7426 *) Rename memory handling macros to avoid conflicts with other
7428 Malloc => OPENSSL_malloc
7429 Malloc_locked => OPENSSL_malloc_locked
7430 Realloc => OPENSSL_realloc
7431 Free => OPENSSL_free
7434 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
7435 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
7438 *) CygWin32 support.
7439 [John Jarvie <jjarvie@newsguy.com>]
7441 *) The type-safe stack code has been rejigged. It is now only compiled
7442 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
7443 by default all type-specific stack functions are "#define"d back to
7444 standard stack functions. This results in more streamlined output
7445 but retains the type-safety checking possibilities of the original
7449 *) The STACK code has been cleaned up, and certain type declarations
7450 that didn't make a lot of sense have been brought in line. This has
7451 also involved a cleanup of sorts in safestack.h to more correctly
7452 map type-safe stack functions onto their plain stack counterparts.
7453 This work has also resulted in a variety of "const"ifications of
7454 lots of the code, especially "_cmp" operations which should normally
7455 be prototyped with "const" parameters anyway.
7458 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
7459 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
7460 (The PRNG state consists of two parts, the large pool 'state' and 'md',
7461 where all of 'md' is used each time the PRNG is used, but 'state'
7462 is used only indexed by a cyclic counter. As entropy may not be
7463 well distributed from the beginning, 'md' is important as a
7464 chaining variable. However, the output function chains only half
7465 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
7466 all of 'md', and seeding with STATE_SIZE dummy bytes will result
7467 in all of 'state' being rewritten, with the new values depending
7468 on virtually all of 'md'. This overcomes the 80 bit limitation.)
7471 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
7472 the handshake is continued after ssl_verify_cert_chain();
7473 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
7474 can lead to 'unexplainable' connection aborts later.
7475 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
7477 *) Major EVP API cipher revision.
7478 Add hooks for extra EVP features. This allows various cipher
7479 parameters to be set in the EVP interface. Support added for variable
7480 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
7481 setting of RC2 and RC5 parameters.
7483 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
7486 Remove lots of duplicated code from the EVP library. For example *every*
7487 cipher init() function handles the 'iv' in the same way according to the
7488 cipher mode. They also all do nothing if the 'key' parameter is NULL and
7489 for CFB and OFB modes they zero ctx->num.
7491 New functionality allows removal of S/MIME code RC2 hack.
7493 Most of the routines have the same form and so can be declared in terms
7496 By shifting this to the top level EVP_CipherInit() it can be removed from
7497 all individual ciphers. If the cipher wants to handle IVs or keys
7498 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
7501 Change lots of functions like EVP_EncryptUpdate() to now return a
7502 value: although software versions of the algorithms cannot fail
7503 any installed hardware versions can.
7506 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
7507 this option is set, tolerate broken clients that send the negotiated
7508 protocol version number instead of the requested protocol version
7512 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
7513 i.e. non-zero for export ciphersuites, zero otherwise.
7514 Previous versions had this flag inverted, inconsistent with
7515 rsa_tmp_cb (..._TMP_RSA_CB).
7516 [Bodo Moeller; problem reported by Amit Chopra]
7518 *) Add missing DSA library text string. Work around for some IIS
7519 key files with invalid SEQUENCE encoding.
7522 *) Add a document (doc/standards.txt) that list all kinds of standards
7523 and so on that are implemented in OpenSSL.
7526 *) Enhance c_rehash script. Old version would mishandle certificates
7527 with the same subject name hash and wouldn't handle CRLs at all.
7528 Added -fingerprint option to crl utility, to support new c_rehash
7532 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
7535 *) Fix for SSL server purpose checking. Server checking was
7536 rejecting certificates which had extended key usage present
7537 but no ssl client purpose.
7538 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
7540 *) Make PKCS#12 code work with no password. The PKCS#12 spec
7541 is a little unclear about how a blank password is handled.
7542 Since the password in encoded as a BMPString with terminating
7543 double NULL a zero length password would end up as just the
7544 double NULL. However no password at all is different and is
7545 handled differently in the PKCS#12 key generation code. NS
7546 treats a blank password as zero length. MSIE treats it as no
7547 password on export: but it will try both on import. We now do
7548 the same: PKCS12_parse() tries zero length and no password if
7549 the password is set to "" or NULL (NULL is now a valid password:
7550 it wasn't before) as does the pkcs12 application.
7553 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
7554 perror when PEM_read_bio_X509_REQ fails, the error message must
7555 be obtained from the error queue.
7558 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
7559 it in ERR_remove_state if appropriate, and change ERR_get_state
7560 accordingly to avoid race conditions (this is necessary because
7561 thread_hash is no longer constant once set).
7564 *) Bugfix for linux-elf makefile.one.
7567 *) RSA_get_default_method() will now cause a default
7568 RSA_METHOD to be chosen if one doesn't exist already.
7569 Previously this was only set during a call to RSA_new()
7570 or RSA_new_method(NULL) meaning it was possible for
7571 RSA_get_default_method() to return NULL.
7574 *) Added native name translation to the existing DSO code
7575 that will convert (if the flag to do so is set) filenames
7576 that are sufficiently small and have no path information
7577 into a canonical native form. Eg. "blah" converted to
7578 "libblah.so" or "blah.dll" etc.
7581 *) New function ERR_error_string_n(e, buf, len) which is like
7582 ERR_error_string(e, buf), but writes at most 'len' bytes
7583 including the 0 terminator. For ERR_error_string_n, 'buf'
7585 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
7587 *) CONF library reworked to become more general. A new CONF
7588 configuration file reader "class" is implemented as well as a
7589 new functions (NCONF_*, for "New CONF") to handle it. The now
7590 old CONF_* functions are still there, but are reimplemented to
7591 work in terms of the new functions. Also, a set of functions
7592 to handle the internal storage of the configuration data is
7593 provided to make it easier to write new configuration file
7594 reader "classes" (I can definitely see something reading a
7595 configuration file in XML format, for example), called _CONF_*,
7596 or "the configuration storage API"...
7598 The new configuration file reading functions are:
7600 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
7601 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
7603 NCONF_default, NCONF_WIN32
7605 NCONF_dump_fp, NCONF_dump_bio
7607 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
7608 NCONF_new creates a new CONF object. This works in the same way
7609 as other interfaces in OpenSSL, like the BIO interface.
7610 NCONF_dump_* dump the internal storage of the configuration file,
7611 which is useful for debugging. All other functions take the same
7612 arguments as the old CONF_* functions wth the exception of the
7613 first that must be a `CONF *' instead of a `LHASH *'.
7615 To make it easer to use the new classes with the old CONF_* functions,
7616 the function CONF_set_default_method is provided.
7619 *) Add '-tls1' option to 'openssl ciphers', which was already
7620 mentioned in the documentation but had not been implemented.
7621 (This option is not yet really useful because even the additional
7622 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
7625 *) Initial DSO code added into libcrypto for letting OpenSSL (and
7626 OpenSSL-based applications) load shared libraries and bind to
7627 them in a portable way.
7628 [Geoff Thorpe, with contributions from Richard Levitte]
7630 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
7632 *) Make sure _lrotl and _lrotr are only used with MSVC.
7634 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
7635 (the default implementation of RAND_status).
7637 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
7638 to '-clrext' (= clear extensions), as intended and documented.
7639 [Bodo Moeller; inconsistency pointed out by Michael Attili
7642 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
7643 was larger than the MD block size.
7644 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
7646 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
7647 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
7648 using the passed key: if the passed key was a private key the result
7649 of X509_print(), for example, would be to print out all the private key
7653 *) des_quad_cksum() byte order bug fix.
7654 [Ulf Möller, using the problem description in krb4-0.9.7, where
7655 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
7657 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
7659 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
7661 *) For easily testing in shell scripts whether some command
7662 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
7663 returns with exit code 0 iff no command of the given name is available.
7664 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
7665 the output goes to stdout and nothing is printed to stderr.
7666 Additional arguments are always ignored.
7668 Since for each cipher there is a command of the same name,
7669 the 'no-cipher' compilation switches can be tested this way.
7671 ('openssl no-XXX' is not able to detect pseudo-commands such
7672 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
7675 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
7678 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
7679 is set; it will be thrown away anyway because each handshake creates
7681 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
7682 to parameters -- in previous versions (since OpenSSL 0.9.3) the
7683 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
7684 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
7687 *) New s_client option -ign_eof: EOF at stdin is ignored, and
7688 'Q' and 'R' lose their special meanings (quit/renegotiate).
7689 This is part of what -quiet does; unlike -quiet, -ign_eof
7690 does not suppress any output.
7693 *) Add compatibility options to the purpose and trust code. The
7694 purpose X509_PURPOSE_ANY is "any purpose" which automatically
7695 accepts a certificate or CA, this was the previous behaviour,
7696 with all the associated security issues.
7698 X509_TRUST_COMPAT is the old trust behaviour: only and
7699 automatically trust self signed roots in certificate store. A
7700 new trust setting X509_TRUST_DEFAULT is used to specify that
7701 a purpose has no associated trust setting and it should instead
7702 use the value in the default purpose.
7705 *) Fix the PKCS#8 DSA private key code so it decodes keys again
7706 and fix a memory leak.
7709 *) In util/mkerr.pl (which implements 'make errors'), preserve
7710 reason strings from the previous version of the .c file, as
7711 the default to have only downcase letters (and digits) in
7712 automatically generated reasons codes is not always appropriate.
7715 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
7716 using strerror. Previously, ERR_reason_error_string() returned
7717 library names as reason strings for SYSerr; but SYSerr is a special
7718 case where small numbers are errno values, not library numbers.
7721 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7722 converts DSA parameters into DH parameters. (When creating parameters,
7723 DSA_generate_parameters is used.)
7726 *) Include 'length' (recommended exponent length) in C code generated
7727 by 'openssl dhparam -C'.
7730 *) The second argument to set_label in perlasm was already being used
7731 so couldn't be used as a "file scope" flag. Moved to third argument
7735 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7736 instead of RAND_bytes for encryption IVs and salts.
7739 *) Include RAND_status() into RAND_METHOD instead of implementing
7740 it only for md_rand.c Otherwise replacing the PRNG by calling
7741 RAND_set_rand_method would be impossible.
7744 *) Don't let DSA_generate_key() enter an infinite loop if the random
7745 number generation fails.
7748 *) New 'rand' application for creating pseudo-random output.
7751 *) Added configuration support for Linux/IA64
7752 [Rolf Haberrecker <rolf@suse.de>]
7754 *) Assembler module support for Mingw32.
7757 *) Shared library support for HPUX (in shlib/).
7758 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7760 *) Shared library support for Solaris gcc.
7761 [Lutz Behnke <behnke@trustcenter.de>]
7763 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7765 *) PKCS7_encrypt() was adding text MIME headers twice because they
7766 were added manually and by SMIME_crlf_copy().
7769 *) In bntest.c don't call BN_rand with zero bits argument.
7770 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7772 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7773 case was implemented. This caused BN_div_recp() to fail occasionally.
7776 *) Add an optional second argument to the set_label() in the perl
7777 assembly language builder. If this argument exists and is set
7778 to 1 it signals that the assembler should use a symbol whose
7779 scope is the entire file, not just the current function. This
7780 is needed with MASM which uses the format label:: for this scope.
7781 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7783 *) Change the ASN1 types so they are typedefs by default. Before
7784 almost all types were #define'd to ASN1_STRING which was causing
7785 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7789 *) Change names of new functions to the new get1/get0 naming
7790 convention: After 'get1', the caller owns a reference count
7791 and has to call ..._free; 'get0' returns a pointer to some
7792 data structure without incrementing reference counters.
7793 (Some of the existing 'get' functions increment a reference
7794 counter, some don't.)
7795 Similarly, 'set1' and 'add1' functions increase reference
7796 counters or duplicate objects.
7799 *) Allow for the possibility of temp RSA key generation failure:
7800 the code used to assume it always worked and crashed on failure.
7803 *) Fix potential buffer overrun problem in BIO_printf().
7804 [Ulf Möller, using public domain code by Patrick Powell; problem
7805 pointed out by David Sacerdote <das33@cornell.edu>]
7807 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7808 RAND_egd() and RAND_status(). In the command line application,
7809 the EGD socket can be specified like a seed file using RANDFILE
7813 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7814 Some CAs (e.g. Verisign) distribute certificates in this form.
7817 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7818 list to exclude them. This means that no special compilation option
7819 is needed to use anonymous DH: it just needs to be included in the
7823 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7824 EVP_MD_type. The old functionality is available in a new macro called
7825 EVP_MD_md(). Change code that uses it and update docs.
7828 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7829 where the 'void *' argument is replaced by a function pointer argument.
7830 Previously 'void *' was abused to point to functions, which works on
7831 many platforms, but is not correct. As these functions are usually
7832 called by macros defined in OpenSSL header files, most source code
7833 should work without changes.
7836 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7837 sections with information on -D... compiler switches used for
7838 compiling the library so that applications can see them. To enable
7839 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7840 must be defined. E.g.,
7841 #define OPENSSL_ALGORITHM_DEFINES
7842 #include <openssl/opensslconf.h>
7843 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7844 [Richard Levitte, Ulf and Bodo Möller]
7846 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7850 *) Change the 'other' type in certificate aux info to a STACK_OF
7851 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7852 the required ASN1 format: arbitrary types determined by an OID.
7855 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7856 argument to 'req'. This is not because the function is newer or
7857 better than others it just uses the work 'NEW' in the certificate
7858 request header lines. Some software needs this.
7861 *) Reorganise password command line arguments: now passwords can be
7862 obtained from various sources. Delete the PEM_cb function and make
7863 it the default behaviour: i.e. if the callback is NULL and the
7864 usrdata argument is not NULL interpret it as a null terminated pass
7865 phrase. If usrdata and the callback are NULL then the pass phrase
7866 is prompted for as usual.
7869 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7870 the support is automatically enabled. The resulting binaries will
7871 autodetect the card and use it if present.
7872 [Ben Laurie and Compaq Inc.]
7874 *) Work around for Netscape hang bug. This sends certificate request
7875 and server done in one record. Since this is perfectly legal in the
7876 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7877 the bugs/SSLv3 entry for more info.
7880 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7883 *) Add -rand argument to smime and pkcs12 applications and read/write
7887 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7890 *) Add command line password options to the remaining applications.
7893 *) Bug fix for BN_div_recp() for numerators with an even number of
7897 *) More tests in bntest.c, and changed test_bn output.
7900 *) ./config recognizes MacOS X now.
7903 *) Bug fix for BN_div() when the first words of num and divsor are
7904 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7907 *) Add support for various broken PKCS#8 formats, and command line
7908 options to produce them.
7911 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7912 get temporary BIGNUMs from a BN_CTX.
7915 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7919 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7920 include a #define from the old name to the new. The original intent
7921 was that statically linked binaries could for example just call
7922 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7923 link with digests. This never worked becayse SSLeay_add_all_digests()
7924 and SSLeay_add_all_ciphers() were in the same source file so calling
7925 one would link with the other. They are now in separate source files.
7928 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7931 *) Use a less unusual form of the Miller-Rabin primality test (it used
7932 a binary algorithm for exponentiation integrated into the Miller-Rabin
7933 loop, our standard modexp algorithms are faster).
7936 *) Support for the EBCDIC character set completed.
7937 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7939 *) Source code cleanups: use const where appropriate, eliminate casts,
7940 use void * instead of char * in lhash.
7943 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7944 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7945 this the server could overwrite ephemeral keys that the client
7949 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7950 using 50 iterations of the Rabin-Miller test.
7952 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7953 iterations of the Rabin-Miller test as required by the appendix
7954 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7955 As BN_is_prime_fasttest includes trial division, DSA parameter
7956 generation becomes much faster.
7958 This implies a change for the callback functions in DSA_is_prime
7959 and DSA_generate_parameters: The callback function is called once
7960 for each positive witness in the Rabin-Miller test, not just
7961 occasionally in the inner loop; and the parameters to the
7962 callback function now provide an iteration count for the outer
7963 loop rather than for the current invocation of the inner loop.
7964 DSA_generate_parameters additionally can call the callback
7965 function with an 'iteration count' of -1, meaning that a
7966 candidate has passed the trial division test (when q is generated
7967 from an application-provided seed, trial division is skipped).
7970 *) New function BN_is_prime_fasttest that optionally does trial
7971 division before starting the Rabin-Miller test and has
7972 an additional BN_CTX * argument (whereas BN_is_prime always
7973 has to allocate at least one BN_CTX).
7974 'callback(1, -1, cb_arg)' is called when a number has passed the
7975 trial division stage.
7978 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7982 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7985 *) New function BN_pseudo_rand().
7988 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7989 bignum version of BN_from_montgomery() with the working code from
7990 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7994 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7995 made it impossible to use the same SSL_SESSION data structure in
7996 SSL2 clients in multiple threads.
7999 *) The return value of RAND_load_file() no longer counts bytes obtained
8000 by stat(). RAND_load_file(..., -1) is new and uses the complete file
8001 to seed the PRNG (previously an explicit byte count was required).
8002 [Ulf Möller, Bodo Möller]
8004 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
8005 used (char *) instead of (void *) and had casts all over the place.
8008 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
8011 *) Retain source code compatibility for BN_prime_checks macro:
8012 BN_is_prime(..., BN_prime_checks, ...) now uses
8013 BN_prime_checks_for_size to determine the appropriate number of
8014 Rabin-Miller iterations.
8017 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
8018 DH_CHECK_P_NOT_SAFE_PRIME.
8019 (Check if this is true? OpenPGP calls them "strong".)
8022 *) Merge the functionality of "dh" and "gendh" programs into a new program
8023 "dhparam". The old programs are retained for now but will handle DH keys
8024 (instead of parameters) in future.
8027 *) Make the ciphers, s_server and s_client programs check the return values
8028 when a new cipher list is set.
8031 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
8032 ciphers. Before when the 56bit ciphers were enabled the sorting was
8035 The syntax for the cipher sorting has been extended to support sorting by
8036 cipher-strength (using the strength_bits hard coded in the tables).
8037 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
8039 Fix a bug in the cipher-command parser: when supplying a cipher command
8040 string with an "undefined" symbol (neither command nor alphanumeric
8041 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
8042 an error is flagged.
8044 Due to the strength-sorting extension, the code of the
8045 ssl_create_cipher_list() function was completely rearranged. I hope that
8046 the readability was also increased :-)
8047 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
8049 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
8050 for the first serial number and places 2 in the serial number file. This
8051 avoids problems when the root CA is created with serial number zero and
8052 the first user certificate has the same issuer name and serial number
8056 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
8057 the new code. Add documentation for this stuff.
8060 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
8061 X509_*() to X509at_*() on the grounds that they don't handle X509
8062 structures and behave in an analagous way to the X509v3 functions:
8063 they shouldn't be called directly but wrapper functions should be used
8066 So we also now have some wrapper functions that call the X509at functions
8067 when passed certificate requests. (TO DO: similar things can be done with
8068 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
8069 things. Some of these need some d2i or i2d and print functionality
8070 because they handle more complex structures.)
8073 *) Add missing #ifndefs that caused missing symbols when building libssl
8074 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
8075 NO_RSA in ssl/s2*.c.
8076 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
8078 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
8079 has a return value which indicates the quality of the random data
8080 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
8081 error queue. New function RAND_pseudo_bytes() generates output that is
8082 guaranteed to be unique but not unpredictable. RAND_add is like
8083 RAND_seed, but takes an extra argument for an entropy estimate
8084 (RAND_seed always assumes full entropy).
8087 *) Do more iterations of Rabin-Miller probable prime test (specifically,
8088 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
8089 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
8090 in crypto/bn/bn_prime.c for the complete table). This guarantees a
8091 false-positive rate of at most 2^-80 for random input.
8094 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
8097 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
8098 in the 0.9.5 release), this returns the chain
8099 from an X509_CTX structure with a dup of the stack and all
8100 the X509 reference counts upped: so the stack will exist
8101 after X509_CTX_cleanup() has been called. Modify pkcs12.c
8104 Also make SSL_SESSION_print() print out the verify return
8108 *) Add manpage for the pkcs12 command. Also change the default
8109 behaviour so MAC iteration counts are used unless the new
8110 -nomaciter option is used. This improves file security and
8111 only older versions of MSIE (4.0 for example) need it.
8114 *) Honor the no-xxx Configure options when creating .DEF files.
8117 *) Add PKCS#10 attributes to field table: challengePassword,
8118 unstructuredName and unstructuredAddress. These are taken from
8119 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
8120 international characters are used.
8122 More changes to X509_ATTRIBUTE code: allow the setting of types
8123 based on strings. Remove the 'loc' parameter when adding
8124 attributes because these will be a SET OF encoding which is sorted
8128 *) Initial changes to the 'req' utility to allow request generation
8129 automation. This will allow an application to just generate a template
8130 file containing all the field values and have req construct the
8133 Initial support for X509_ATTRIBUTE handling. Stacks of these are
8134 used all over the place including certificate requests and PKCS#7
8135 structures. They are currently handled manually where necessary with
8136 some primitive wrappers for PKCS#7. The new functions behave in a
8137 manner analogous to the X509 extension functions: they allow
8138 attributes to be looked up by NID and added.
8140 Later something similar to the X509V3 code would be desirable to
8141 automatically handle the encoding, decoding and printing of the
8142 more complex types. The string types like challengePassword can
8143 be handled by the string table functions.
8145 Also modified the multi byte string table handling. Now there is
8146 a 'global mask' which masks out certain types. The table itself
8147 can use the flag STABLE_NO_MASK to ignore the mask setting: this
8148 is useful when for example there is only one permissible type
8149 (as in countryName) and using the mask might result in no valid
8153 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
8154 SSL_get_peer_finished to allow applications to obtain the latest
8155 Finished messages sent to the peer or expected from the peer,
8156 respectively. (SSL_get_peer_finished is usually the Finished message
8157 actually received from the peer, otherwise the protocol will be aborted.)
8159 As the Finished message are message digests of the complete handshake
8160 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
8161 be used for external authentication procedures when the authentication
8162 provided by SSL/TLS is not desired or is not enough.
8165 *) Enhanced support for Alpha Linux is added. Now ./config checks if
8166 the host supports BWX extension and if Compaq C is present on the
8167 $PATH. Just exploiting of the BWX extension results in 20-30%
8168 performance kick for some algorithms, e.g. DES and RC4 to mention
8169 a couple. Compaq C in turn generates ~20% faster code for MD5 and
8173 *) Add support for MS "fast SGC". This is arguably a violation of the
8174 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
8175 weak crypto and after checking the certificate is SGC a second one
8176 with strong crypto. MS SGC stops the first handshake after receiving
8177 the server certificate message and sends a second client hello. Since
8178 a server will typically do all the time consuming operations before
8179 expecting any further messages from the client (server key exchange
8180 is the most expensive) there is little difference between the two.
8182 To get OpenSSL to support MS SGC we have to permit a second client
8183 hello message after we have sent server done. In addition we have to
8184 reset the MAC if we do get this second client hello.
8187 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
8188 if a DER encoded private key is RSA or DSA traditional format. Changed
8189 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
8190 format DER encoded private key. Newer code should use PKCS#8 format which
8191 has the key type encoded in the ASN1 structure. Added DER private key
8192 support to pkcs8 application.
8195 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
8196 ciphersuites has been selected (as required by the SSL 3/TLS 1
8197 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
8198 is set, we interpret this as a request to violate the specification
8199 (the worst that can happen is a handshake failure, and 'correct'
8200 behaviour would result in a handshake failure anyway).
8203 *) In SSL_CTX_add_session, take into account that there might be multiple
8204 SSL_SESSION structures with the same session ID (e.g. when two threads
8205 concurrently obtain them from an external cache).
8206 The internal cache can handle only one SSL_SESSION with a given ID,
8207 so if there's a conflict, we now throw out the old one to achieve
8211 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
8212 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
8213 some routines that use cipher OIDs: some ciphers do not have OIDs
8214 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
8218 *) Simplify the trust setting structure and code. Now we just have
8219 two sequences of OIDs for trusted and rejected settings. These will
8220 typically have values the same as the extended key usage extension
8221 and any application specific purposes.
8223 The trust checking code now has a default behaviour: it will just
8224 check for an object with the same NID as the passed id. Functions can
8225 be provided to override either the default behaviour or the behaviour
8226 for a given id. SSL client, server and email already have functions
8227 in place for compatibility: they check the NID and also return "trusted"
8228 if the certificate is self signed.
8231 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
8232 traditional format into an EVP_PKEY structure.
8235 *) Add a password callback function PEM_cb() which either prompts for
8236 a password if usr_data is NULL or otherwise assumes it is a null
8237 terminated password. Allow passwords to be passed on command line
8238 environment or config files in a few more utilities.
8241 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
8242 keys. Add some short names for PKCS#8 PBE algorithms and allow them
8243 to be specified on the command line for the pkcs8 and pkcs12 utilities.
8244 Update documentation.
8247 *) Support for ASN1 "NULL" type. This could be handled before by using
8248 ASN1_TYPE but there wasn't any function that would try to read a NULL
8249 and produce an error if it couldn't. For compatibility we also have
8250 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
8251 don't allocate anything because they don't need to.
8254 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
8256 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
8258 *) Rebuild of the memory allocation routines used by OpenSSL code and
8259 possibly others as well. The purpose is to make an interface that
8260 provide hooks so anyone can build a separate set of allocation and
8261 deallocation routines to be used by OpenSSL, for example memory
8262 pool implementations, or something else, which was previously hard
8263 since Malloc(), Realloc() and Free() were defined as macros having
8264 the values malloc, realloc and free, respectively (except for Win32
8265 compilations). The same is provided for memory debugging code.
8266 OpenSSL already comes with functionality to find memory leaks, but
8267 this gives people a chance to debug other memory problems.
8269 With these changes, a new set of functions and macros have appeared:
8271 CRYPTO_set_mem_debug_functions() [F]
8272 CRYPTO_get_mem_debug_functions() [F]
8273 CRYPTO_dbg_set_options() [F]
8274 CRYPTO_dbg_get_options() [F]
8275 CRYPTO_malloc_debug_init() [M]
8277 The memory debug functions are NULL by default, unless the library
8278 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
8279 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
8280 gives the standard debugging functions that come with OpenSSL) or
8281 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
8282 provided by the library user) must be used. When the standard
8283 debugging functions are used, CRYPTO_dbg_set_options can be used to
8284 request additional information:
8285 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
8286 the CRYPTO_MDEBUG_xxx macro when compiling the library.
8288 Also, things like CRYPTO_set_mem_functions will always give the
8289 expected result (the new set of functions is used for allocation
8290 and deallocation) at all times, regardless of platform and compiler
8293 To finish it up, some functions that were never use in any other
8294 way than through macros have a new API and new semantic:
8297 CRYPTO_dbg_realloc()
8300 All macros of value have retained their old syntax.
8301 [Richard Levitte and Bodo Moeller]
8303 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
8304 ordering of SMIMECapabilities wasn't in "strength order" and there
8305 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
8309 *) Some ASN1 types with illegal zero length encoding (INTEGER,
8310 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
8311 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
8313 *) Merge in my S/MIME library for OpenSSL. This provides a simple
8314 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
8315 functionality to handle multipart/signed properly) and a utility
8316 called 'smime' to call all this stuff. This is based on code I
8317 originally wrote for Celo who have kindly allowed it to be
8318 included in OpenSSL.
8321 *) Add variants des_set_key_checked and des_set_key_unchecked of
8322 des_set_key (aka des_key_sched). Global variable des_check_key
8323 decides which of these is called by des_set_key; this way
8324 des_check_key behaves as it always did, but applications and
8325 the library itself, which was buggy for des_check_key == 1,
8326 have a cleaner way to pick the version they need.
8329 *) New function PKCS12_newpass() which changes the password of a
8333 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
8334 dynamic mix. In both cases the ids can be used as an index into the
8335 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
8336 functions so they accept a list of the field values and the
8337 application doesn't need to directly manipulate the X509_TRUST
8341 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
8345 *) Modify the way the V3 extension code looks up extensions. This now
8346 works in a similar way to the object code: we have some "standard"
8347 extensions in a static table which is searched with OBJ_bsearch()
8348 and the application can add dynamic ones if needed. The file
8349 crypto/x509v3/ext_dat.h now has the info: this file needs to be
8350 updated whenever a new extension is added to the core code and kept
8351 in ext_nid order. There is a simple program 'tabtest.c' which checks
8352 this. New extensions are not added too often so this file can readily
8353 be maintained manually.
8355 There are two big advantages in doing things this way. The extensions
8356 can be looked up immediately and no longer need to be "added" using
8357 X509V3_add_standard_extensions(): this function now does nothing.
8358 [Side note: I get *lots* of email saying the extension code doesn't
8359 work because people forget to call this function]
8360 Also no dynamic allocation is done unless new extensions are added:
8361 so if we don't add custom extensions there is no need to call
8362 X509V3_EXT_cleanup().
8365 *) Modify enc utility's salting as follows: make salting the default. Add a
8366 magic header, so unsalted files fail gracefully instead of just decrypting
8367 to garbage. This is because not salting is a big security hole, so people
8368 should be discouraged from doing it.
8371 *) Fixes and enhancements to the 'x509' utility. It allowed a message
8372 digest to be passed on the command line but it only used this
8373 parameter when signing a certificate. Modified so all relevant
8374 operations are affected by the digest parameter including the
8375 -fingerprint and -x509toreq options. Also -x509toreq choked if a
8376 DSA key was used because it didn't fix the digest.
8379 *) Initial certificate chain verify code. Currently tests the untrusted
8380 certificates for consistency with the verify purpose (which is set
8381 when the X509_STORE_CTX structure is set up) and checks the pathlength.
8383 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
8384 this is because it will reject chains with invalid extensions whereas
8385 every previous version of OpenSSL and SSLeay made no checks at all.
8387 Trust code: checks the root CA for the relevant trust settings. Trust
8388 settings have an initial value consistent with the verify purpose: e.g.
8389 if the verify purpose is for SSL client use it expects the CA to be
8390 trusted for SSL client use. However the default value can be changed to
8391 permit custom trust settings: one example of this would be to only trust
8392 certificates from a specific "secure" set of CAs.
8394 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
8395 which should be used for version portability: especially since the
8396 verify structure is likely to change more often now.
8398 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
8399 to set them. If not set then assume SSL clients will verify SSL servers
8402 Two new options to the verify program: -untrusted allows a set of
8403 untrusted certificates to be passed in and -purpose which sets the
8404 intended purpose of the certificate. If a purpose is set then the
8405 new chain verify code is used to check extension consistency.
8408 *) Support for the authority information access extension.
8411 *) Modify RSA and DSA PEM read routines to transparently handle
8412 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
8413 public keys in a format compatible with certificate
8414 SubjectPublicKeyInfo structures. Unfortunately there were already
8415 functions called *_PublicKey_* which used various odd formats so
8416 these are retained for compatibility: however the DSA variants were
8417 never in a public release so they have been deleted. Changed dsa/rsa
8418 utilities to handle the new format: note no releases ever handled public
8419 keys so we should be OK.
8421 The primary motivation for this change is to avoid the same fiasco
8422 that dogs private keys: there are several incompatible private key
8423 formats some of which are standard and some OpenSSL specific and
8424 require various evil hacks to allow partial transparent handling and
8425 even then it doesn't work with DER formats. Given the option anything
8426 other than PKCS#8 should be dumped: but the other formats have to
8427 stay in the name of compatibility.
8429 With public keys and the benefit of hindsight one standard format
8430 is used which works with EVP_PKEY, RSA or DSA structures: though
8431 it clearly returns an error if you try to read the wrong kind of key.
8433 Added a -pubkey option to the 'x509' utility to output the public key.
8434 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
8435 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
8436 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
8437 that do the same as the EVP_PKEY_assign_*() except they up the
8438 reference count of the added key (they don't "swallow" the
8442 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
8443 CRLs would fail if the file contained no certificates or no CRLs:
8444 added a new function to read in both types and return the number
8445 read: this means that if none are read it will be an error. The
8446 DER versions of the certificate and CRL reader would always fail
8447 because it isn't possible to mix certificates and CRLs in DER format
8448 without choking one or the other routine. Changed this to just read
8449 a certificate: this is the best we can do. Also modified the code
8450 in apps/verify.c to take notice of return codes: it was previously
8451 attempting to read in certificates from NULL pointers and ignoring
8452 any errors: this is one reason why the cert and CRL reader seemed
8453 to work. It doesn't check return codes from the default certificate
8454 routines: these may well fail if the certificates aren't installed.
8457 *) Code to support otherName option in GeneralName.
8460 *) First update to verify code. Change the verify utility
8461 so it warns if it is passed a self signed certificate:
8462 for consistency with the normal behaviour. X509_verify
8463 has been modified to it will now verify a self signed
8464 certificate if *exactly* the same certificate appears
8465 in the store: it was previously impossible to trust a
8466 single self signed certificate. This means that:
8467 openssl verify ss.pem
8468 now gives a warning about a self signed certificate but
8469 openssl verify -CAfile ss.pem ss.pem
8473 *) For servers, store verify_result in SSL_SESSION data structure
8474 (and add it to external session representation).
8475 This is needed when client certificate verifications fails,
8476 but an application-provided verification callback (set by
8477 SSL_CTX_set_cert_verify_callback) allows accepting the session
8478 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
8479 but returns 1): When the session is reused, we have to set
8480 ssl->verify_result to the appropriate error code to avoid
8482 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
8484 *) Fix a bug in the new PKCS#7 code: it didn't consider the
8485 case in PKCS7_dataInit() where the signed PKCS7 structure
8486 didn't contain any existing data because it was being created.
8487 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
8489 *) Add a salt to the key derivation routines in enc.c. This
8490 forms the first 8 bytes of the encrypted file. Also add a
8491 -S option to allow a salt to be input on the command line.
8494 *) New function X509_cmp(). Oddly enough there wasn't a function
8495 to compare two certificates. We do this by working out the SHA1
8496 hash and comparing that. X509_cmp() will be needed by the trust
8500 *) SSL_get1_session() is like SSL_get_session(), but increments
8501 the reference count in the SSL_SESSION returned.
8502 [Geoff Thorpe <geoff@eu.c2.net>]
8504 *) Fix for 'req': it was adding a null to request attributes.
8505 Also change the X509_LOOKUP and X509_INFO code to handle
8506 certificate auxiliary information.
8509 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
8513 *) Add the possibility to add extra information to the memory leak
8514 detecting output, to form tracebacks, showing from where each
8515 allocation was originated: CRYPTO_push_info("constant string") adds
8516 the string plus current file name and line number to a per-thread
8517 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
8518 is like calling CYRPTO_pop_info() until the stack is empty.
8519 Also updated memory leak detection code to be multi-thread-safe.
8522 *) Add options -text and -noout to pkcs7 utility and delete the
8523 encryption options which never did anything. Update docs.
8526 *) Add options to some of the utilities to allow the pass phrase
8527 to be included on either the command line (not recommended on
8528 OSes like Unix) or read from the environment. Update the
8529 manpages and fix a few bugs.
8532 *) Add a few manpages for some of the openssl commands.
8535 *) Fix the -revoke option in ca. It was freeing up memory twice,
8536 leaking and not finding already revoked certificates.
8539 *) Extensive changes to support certificate auxiliary information.
8540 This involves the use of X509_CERT_AUX structure and X509_AUX
8541 functions. An X509_AUX function such as PEM_read_X509_AUX()
8542 can still read in a certificate file in the usual way but it
8543 will also read in any additional "auxiliary information". By
8544 doing things this way a fair degree of compatibility can be
8545 retained: existing certificates can have this information added
8546 using the new 'x509' options.
8548 Current auxiliary information includes an "alias" and some trust
8549 settings. The trust settings will ultimately be used in enhanced
8550 certificate chain verification routines: currently a certificate
8551 can only be trusted if it is self signed and then it is trusted
8555 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
8556 The problem was that one of the replacement routines had not been working
8557 since SSLeay releases. For now the offending routine has been replaced
8558 with non-optimised assembler. Even so, this now gives around 95%
8559 performance improvement for 1024 bit RSA signs.
8562 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
8563 handling. Most clients have the effective key size in bits equal to
8564 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
8565 A few however don't do this and instead use the size of the decrypted key
8566 to determine the RC2 key length and the AlgorithmIdentifier to determine
8567 the effective key length. In this case the effective key length can still
8568 be 40 bits but the key length can be 168 bits for example. This is fixed
8569 by manually forcing an RC2 key into the EVP_PKEY structure because the
8570 EVP code can't currently handle unusual RC2 key sizes: it always assumes
8571 the key length and effective key length are equal.
8574 *) Add a bunch of functions that should simplify the creation of
8575 X509_NAME structures. Now you should be able to do:
8576 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
8577 and have it automatically work out the correct field type and fill in
8578 the structures. The more adventurous can try:
8579 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
8580 and it will (hopefully) work out the correct multibyte encoding.
8583 *) Change the 'req' utility to use the new field handling and multibyte
8584 copy routines. Before the DN field creation was handled in an ad hoc
8585 way in req, ca, and x509 which was rather broken and didn't support
8586 BMPStrings or UTF8Strings. Since some software doesn't implement
8587 BMPStrings or UTF8Strings yet, they can be enabled using the config file
8588 using the dirstring_type option. See the new comment in the default
8589 openssl.cnf for more info.
8592 *) Make crypto/rand/md_rand.c more robust:
8593 - Assure unique random numbers after fork().
8594 - Make sure that concurrent threads access the global counter and
8595 md serializably so that we never lose entropy in them
8596 or use exactly the same state in multiple threads.
8597 Access to the large state is not always serializable because
8598 the additional locking could be a performance killer, and
8599 md should be large enough anyway.
8602 *) New file apps/app_rand.c with commonly needed functionality
8603 for handling the random seed file.
8605 Use the random seed file in some applications that previously did not:
8607 dsaparam -genkey (which also ignored its '-rand' option),
8610 x509 (when signing).
8611 Except on systems with /dev/urandom, it is crucial to have a random
8612 seed file at least for key creation, DSA signing, and for DH exchanges;
8613 for RSA signatures we could do without one.
8615 gendh and gendsa (unlike genrsa) used to read only the first byte
8616 of each file listed in the '-rand' option. The function as previously
8617 found in genrsa is now in app_rand.c and is used by all programs
8618 that support '-rand'.
8621 *) In RAND_write_file, use mode 0600 for creating files;
8622 don't just chmod when it may be too late.
8625 *) Report an error from X509_STORE_load_locations
8626 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
8629 *) New function ASN1_mbstring_copy() this copies a string in either
8630 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
8631 into an ASN1_STRING type. A mask of permissible types is passed
8632 and it chooses the "minimal" type to use or an error if not type
8636 *) Add function equivalents to the various macros in asn1.h. The old
8637 macros are retained with an M_ prefix. Code inside the library can
8638 use the M_ macros. External code (including the openssl utility)
8639 should *NOT* in order to be "shared library friendly".
8642 *) Add various functions that can check a certificate's extensions
8643 to see if it usable for various purposes such as SSL client,
8644 server or S/MIME and CAs of these types. This is currently
8645 VERY EXPERIMENTAL but will ultimately be used for certificate chain
8646 verification. Also added a -purpose flag to x509 utility to
8647 print out all the purposes.
8650 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
8654 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
8655 for, obtain and decode and extension and obtain its critical flag.
8656 This allows all the necessary extension code to be handled in a
8657 single function call.
8660 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
8661 platforms. See crypto/rc4/rc4_enc.c for further details.
8664 *) New -noout option to asn1parse. This causes no output to be produced
8665 its main use is when combined with -strparse and -out to extract data
8666 from a file (which may not be in ASN.1 format).
8669 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
8670 when producing the local key id.
8671 [Richard Levitte <levitte@stacken.kth.se>]
8673 *) New option -dhparam in s_server. This allows a DH parameter file to be
8674 stated explicitly. If it is not stated then it tries the first server
8675 certificate file. The previous behaviour hard coded the filename
8679 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
8680 a public key to be input or output. For example:
8681 openssl rsa -in key.pem -pubout -out pubkey.pem
8682 Also added necessary DSA public key functions to handle this.
8685 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
8686 in the message. This was handled by allowing
8687 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
8688 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
8690 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
8691 to the end of the strings whereas this didn't. This would cause problems
8692 if strings read with d2i_ASN1_bytes() were later modified.
8693 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
8695 *) Fix for base64 decode bug. When a base64 bio reads only one line of
8696 data and it contains EOF it will end up returning an error. This is
8697 caused by input 46 bytes long. The cause is due to the way base64
8698 BIOs find the start of base64 encoded data. They do this by trying a
8699 trial decode on each line until they find one that works. When they
8700 do a flag is set and it starts again knowing it can pass all the
8701 data directly through the decoder. Unfortunately it doesn't reset
8702 the context it uses. This means that if EOF is reached an attempt
8703 is made to pass two EOFs through the context and this causes the
8704 resulting error. This can also cause other problems as well. As is
8705 usual with these problems it takes *ages* to find and the fix is
8706 trivial: move one line.
8707 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
8709 *) Ugly workaround to get s_client and s_server working under Windows. The
8710 old code wouldn't work because it needed to select() on sockets and the
8711 tty (for keypresses and to see if data could be written). Win32 only
8712 supports select() on sockets so we select() with a 1s timeout on the
8713 sockets and then see if any characters are waiting to be read, if none
8714 are present then we retry, we also assume we can always write data to
8715 the tty. This isn't nice because the code then blocks until we've
8716 received a complete line of data and it is effectively polling the
8717 keyboard at 1s intervals: however it's quite a bit better than not
8718 working at all :-) A dedicated Windows application might handle this
8719 with an event loop for example.
8722 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8723 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8724 will be called when RSA_sign() and RSA_verify() are used. This is useful
8725 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8726 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8727 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8728 This necessitated the support of an extra signature type NID_md5_sha1
8729 for SSL signatures and modifications to the SSL library to use it instead
8730 of calling RSA_public_decrypt() and RSA_private_encrypt().
8733 *) Add new -verify -CAfile and -CApath options to the crl program, these
8734 will lookup a CRL issuers certificate and verify the signature in a
8735 similar way to the verify program. Tidy up the crl program so it
8736 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8737 less strict. It will now permit CRL extensions even if it is not
8738 a V2 CRL: this will allow it to tolerate some broken CRLs.
8741 *) Initialize all non-automatic variables each time one of the openssl
8742 sub-programs is started (this is necessary as they may be started
8743 multiple times from the "OpenSSL>" prompt).
8744 [Lennart Bang, Bodo Moeller]
8746 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8747 removing all other RSA functionality (this is what NO_RSA does). This
8748 is so (for example) those in the US can disable those operations covered
8749 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8753 *) Non-copying interface to BIO pairs.
8754 (still largely untested)
8757 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8758 ASCII string. This was handled independently in various places before.
8761 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8762 UTF8 strings a character at a time.
8765 *) Use client_version from client hello to select the protocol
8766 (s23_srvr.c) and for RSA client key exchange verification
8767 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8770 *) Add various utility functions to handle SPKACs, these were previously
8771 handled by poking round in the structure internals. Added new function
8772 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8773 print, verify and generate SPKACs. Based on an original idea from
8774 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8777 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8780 *) Allow the config file extension section to be overwritten on the
8781 command line. Based on an original idea from Massimiliano Pala
8782 <madwolf@comune.modena.it>. The new option is called -extensions
8783 and can be applied to ca, req and x509. Also -reqexts to override
8784 the request extensions in req and -crlexts to override the crl extensions
8788 *) Add new feature to the SPKAC handling in ca. Now you can include
8789 the same field multiple times by preceding it by "XXXX." for example:
8792 this is the same syntax as used in the req config file.
8795 *) Allow certificate extensions to be added to certificate requests. These
8796 are specified in a 'req_extensions' option of the req section of the
8797 config file. They can be printed out with the -text option to req but
8798 are otherwise ignored at present.
8801 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8802 data read consists of only the final block it would not decrypted because
8803 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8804 A misplaced 'break' also meant the decrypted final block might not be
8805 copied until the next read.
8808 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8809 a few extra parameters to the DH structure: these will be useful if
8810 for example we want the value of 'q' or implement X9.42 DH.
8813 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8814 provides hooks that allow the default DSA functions or functions on a
8815 "per key" basis to be replaced. This allows hardware acceleration and
8816 hardware key storage to be handled without major modification to the
8817 library. Also added low level modexp hooks and CRYPTO_EX structure and
8818 associated functions.
8821 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8822 as "read only": it can't be written to and the buffer it points to will
8823 not be freed. Reading from a read only BIO is much more efficient than
8824 a normal memory BIO. This was added because there are several times when
8825 an area of memory needs to be read from a BIO. The previous method was
8826 to create a memory BIO and write the data to it, this results in two
8827 copies of the data and an O(n^2) reading algorithm. There is a new
8828 function BIO_new_mem_buf() which creates a read only memory BIO from
8829 an area of memory. Also modified the PKCS#7 routines to use read only
8833 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8834 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8835 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8836 but a retry condition occured while trying to read the rest.
8839 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8840 NID_pkcs7_encrypted by default: this was wrong since this should almost
8841 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8842 the encrypted data type: this is a more sensible place to put it and it
8843 allows the PKCS#12 code to be tidied up that duplicated this
8847 *) Changed obj_dat.pl script so it takes its input and output files on
8848 the command line. This should avoid shell escape redirection problems
8852 *) Initial support for certificate extension requests, these are included
8853 in things like Xenroll certificate requests. Included functions to allow
8854 extensions to be obtained and added.
8857 *) -crlf option to s_client and s_server for sending newlines as
8858 CRLF (as required by many protocols).
8861 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8863 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8864 [Ralf S. Engelschall]
8866 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8867 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8869 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8873 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8874 DH parameters/keys (q is lost during that conversion, but the resulting
8875 DH parameters contain its length).
8877 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8878 much faster than DH_generate_parameters (which creates parameters
8879 where p = 2*q + 1), and also the smaller q makes DH computations
8880 much more efficient (160-bit exponentiation instead of 1024-bit
8881 exponentiation); so this provides a convenient way to support DHE
8882 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8883 utter importance to use
8884 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8886 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8887 when such DH parameters are used, because otherwise small subgroup
8888 attacks may become possible!
8891 *) Avoid memory leak in i2d_DHparams.
8894 *) Allow the -k option to be used more than once in the enc program:
8895 this allows the same encrypted message to be read by multiple recipients.
8898 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8899 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8900 it will always use the numerical form of the OID, even if it has a short
8904 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8905 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8906 otherwise bn_mod_exp was called. In the case of hardware keys for example
8907 no private key components need be present and it might store extra data
8908 in the RSA structure, which cannot be accessed from bn_mod_exp.
8909 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8910 private key operations.
8913 *) Added support for SPARC Linux.
8916 *) pem_password_cb function type incompatibly changed from
8917 typedef int pem_password_cb(char *buf, int size, int rwflag);
8919 ....(char *buf, int size, int rwflag, void *userdata);
8920 so that applications can pass data to their callbacks:
8921 The PEM[_ASN1]_{read,write}... functions and macros now take an
8922 additional void * argument, which is just handed through whenever
8923 the password callback is called.
8924 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8926 New function SSL_CTX_set_default_passwd_cb_userdata.
8928 Compatibility note: As many C implementations push function arguments
8929 onto the stack in reverse order, the new library version is likely to
8930 interoperate with programs that have been compiled with the old
8931 pem_password_cb definition (PEM_whatever takes some data that
8932 happens to be on the stack as its last argument, and the callback
8933 just ignores this garbage); but there is no guarantee whatsoever that
8936 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8937 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8938 problems not only on Windows, but also on some Unix platforms.
8939 To avoid problematic command lines, these definitions are now in an
8940 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8941 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8944 *) MIPS III/IV assembler module is reimplemented.
8947 *) More DES library cleanups: remove references to srand/rand and
8948 delete an unused file.
8951 *) Add support for the the free Netwide assembler (NASM) under Win32,
8952 since not many people have MASM (ml) and it can be hard to obtain.
8953 This is currently experimental but it seems to work OK and pass all
8954 the tests. Check out INSTALL.W32 for info.
8957 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8958 without temporary keys kept an extra copy of the server key,
8959 and connections with temporary keys did not free everything in case
8963 *) New function RSA_check_key and new openssl rsa option -check
8964 for verifying the consistency of RSA keys.
8965 [Ulf Moeller, Bodo Moeller]
8967 *) Various changes to make Win32 compile work:
8968 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8969 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8970 comparison" warnings.
8971 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8974 *) Add a debugging option to PKCS#5 v2 key generation function: when
8975 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8976 derived keys are printed to stderr.
8979 *) Copy the flags in ASN1_STRING_dup().
8980 [Roman E. Pavlov <pre@mo.msk.ru>]
8982 *) The x509 application mishandled signing requests containing DSA
8983 keys when the signing key was also DSA and the parameters didn't match.
8985 It was supposed to omit the parameters when they matched the signing key:
8986 the verifying software was then supposed to automatically use the CA's
8987 parameters if they were absent from the end user certificate.
8989 Omitting parameters is no longer recommended. The test was also
8990 the wrong way round! This was probably due to unusual behaviour in
8991 EVP_cmp_parameters() which returns 1 if the parameters match.
8992 This meant that parameters were omitted when they *didn't* match and
8993 the certificate was useless. Certificates signed with 'ca' didn't have
8995 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8997 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8998 The interface is as follows:
8999 Applications can use
9000 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
9001 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
9002 "off" is now the default.
9003 The library internally uses
9004 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
9005 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
9006 to disable memory-checking temporarily.
9008 Some inconsistent states that previously were possible (and were
9009 even the default) are now avoided.
9011 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
9012 with each memory chunk allocated; this is occasionally more helpful
9013 than just having a counter.
9015 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
9017 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
9021 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
9022 which largely parallels "options", but is for changing API behaviour,
9023 whereas "options" are about protocol behaviour.
9024 Initial "mode" flags are:
9026 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
9027 a single record has been written.
9028 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
9029 retries use the same buffer location.
9030 (But all of the contents must be
9034 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
9037 *) Fix problems with no-hmac etc.
9038 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
9040 *) New functions RSA_get_default_method(), RSA_set_method() and
9041 RSA_get_method(). These allows replacement of RSA_METHODs without having
9042 to mess around with the internals of an RSA structure.
9045 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
9046 Also really enable memory leak checks in openssl.c and in some
9048 [Chad C. Mulligan, Bodo Moeller]
9050 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
9051 up the length of negative integers. This has now been simplified to just
9052 store the length when it is first determined and use it later, rather
9053 than trying to keep track of where data is copied and updating it to
9055 [Steve Henson, reported by Brien Wheeler
9056 <bwheeler@authentica-security.com>]
9058 *) Add a new function PKCS7_signatureVerify. This allows the verification
9059 of a PKCS#7 signature but with the signing certificate passed to the
9060 function itself. This contrasts with PKCS7_dataVerify which assumes the
9061 certificate is present in the PKCS#7 structure. This isn't always the
9062 case: certificates can be omitted from a PKCS#7 structure and be
9063 distributed by "out of band" means (such as a certificate database).
9066 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
9067 function prototypes in pem.h, also change util/mkdef.pl to add the
9068 necessary function names.
9071 *) mk1mf.pl (used by Windows builds) did not properly read the
9072 options set by Configure in the top level Makefile, and Configure
9073 was not even able to write more than one option correctly.
9074 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
9077 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
9078 file to be loaded from a BIO or FILE pointer. The BIO version will
9079 for example allow memory BIOs to contain config info.
9082 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
9083 Whoever hopes to achieve shared-library compatibility across versions
9084 must use this, not the compile-time macro.
9085 (Exercise 0.9.4: Which is the minimum library version required by
9087 Note: All this applies only to multi-threaded programs, others don't
9091 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
9092 through a BIO pair triggered the default case, i.e.
9093 SSLerr(...,SSL_R_UNKNOWN_STATE).
9096 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
9097 can use the SSL library even if none of the specific BIOs is
9101 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
9102 for the encoded length.
9103 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
9105 *) Add initial documentation of the X509V3 functions.
9108 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
9109 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
9110 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
9111 secure PKCS#8 private key format with a high iteration count.
9114 *) Fix determination of Perl interpreter: A perl or perl5
9115 _directory_ in $PATH was also accepted as the interpreter.
9116 [Ralf S. Engelschall]
9118 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
9119 wrong with it but it was very old and did things like calling
9120 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
9124 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
9125 to use the new extension code.
9128 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
9129 with macros. This should make it easier to change their form, add extra
9130 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
9134 *) Add to configuration table a new entry that can specify an alternative
9135 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
9136 according to Mark Crispin <MRC@Panda.COM>.
9140 *) DES CBC did not update the IV. Weird.
9143 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
9144 Changing the behaviour of the former might break existing programs --
9145 where IV updating is needed, des_ncbc_encrypt can be used.
9148 *) When bntest is run from "make test" it drives bc to check its
9149 calculations, as well as internally checking them. If an internal check
9150 fails, it needs to cause bc to give a non-zero result or make test carries
9151 on without noticing the failure. Fixed.
9154 *) DES library cleanups.
9157 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
9158 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
9159 ciphers. NOTE: although the key derivation function has been verified
9160 against some published test vectors it has not been extensively tested
9161 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
9165 *) Instead of "mkdir -p", which is not fully portable, use new
9166 Perl script "util/mkdir-p.pl".
9169 *) Rewrite the way password based encryption (PBE) is handled. It used to
9170 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
9171 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
9172 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
9173 the 'parameter' field of the AlgorithmIdentifier is passed to the
9174 underlying key generation function so it must do its own ASN1 parsing.
9175 This has also changed the EVP_PBE_CipherInit() function which now has a
9176 'parameter' argument instead of literal salt and iteration count values
9177 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
9180 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
9181 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
9182 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
9183 KEY" because this clashed with PKCS#8 unencrypted string. Since this
9184 value was just used as a "magic string" and not used directly its
9185 value doesn't matter.
9188 *) Introduce some semblance of const correctness to BN. Shame C doesn't
9192 *) "linux-sparc64" configuration (ultrapenguin).
9193 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
9194 "linux-sparc" configuration.
9195 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
9197 *) config now generates no-xxx options for missing ciphers.
9200 *) Support the EBCDIC character set (work in progress).
9201 File ebcdic.c not yet included because it has a different license.
9202 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
9204 *) Support BS2000/OSD-POSIX.
9205 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
9207 *) Make callbacks for key generation use void * instead of char *.
9210 *) Make S/MIME samples compile (not yet tested).
9213 *) Additional typesafe stacks.
9216 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
9220 Changes between 0.9.3 and 0.9.3a [29 May 1999]
9222 *) New configuration variant "sco5-gcc".
9224 *) Updated some demos.
9225 [Sean O Riordain, Wade Scholine]
9227 *) Add missing BIO_free at exit of pkcs12 application.
9230 *) Fix memory leak in conf.c.
9233 *) Updates for Win32 to assembler version of MD5.
9236 *) Set #! path to perl in apps/der_chop to where we found it
9237 instead of using a fixed path.
9240 *) SHA library changes for irix64-mips4-cc.
9243 *) Improvements for VMS support.
9247 Changes between 0.9.2b and 0.9.3 [24 May 1999]
9249 *) Bignum library bug fix. IRIX 6 passes "make test" now!
9250 This also avoids the problems with SC4.2 and unpatched SC5.
9251 [Andy Polyakov <appro@fy.chalmers.se>]
9253 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
9254 These are required because of the typesafe stack would otherwise break
9255 existing code. If old code used a structure member which used to be STACK
9256 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
9257 sk_num or sk_value it would produce an error because the num, data members
9258 are not present in STACK_OF. Now it just produces a warning. sk_set
9259 replaces the old method of assigning a value to sk_value
9260 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
9261 that does this will no longer work (and should use sk_set instead) but
9262 this could be regarded as a "questionable" behaviour anyway.
9265 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
9266 correctly handle encrypted S/MIME data.
9269 *) Change type of various DES function arguments from des_cblock
9270 (which means, in function argument declarations, pointer to char)
9271 to des_cblock * (meaning pointer to array with 8 char elements),
9272 which allows the compiler to do more typechecking; it was like
9273 that back in SSLeay, but with lots of ugly casts.
9275 Introduce new type const_des_cblock.
9278 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
9279 problems: find RecipientInfo structure that matches recipient certificate
9280 and initialise the ASN1 structures properly based on passed cipher.
9283 *) Belatedly make the BN tests actually check the results.
9286 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
9287 to and from BNs: it was completely broken. New compilation option
9288 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
9289 key elements as negative integers.
9292 *) Reorganize and speed up MD5.
9293 [Andy Polyakov <appro@fy.chalmers.se>]
9296 [Richard Levitte <richard@levitte.org>]
9298 *) New option -out to asn1parse to allow the parsed structure to be
9299 output to a file. This is most useful when combined with the -strparse
9300 option to examine the output of things like OCTET STRINGS.
9303 *) Make SSL library a little more fool-proof by not requiring any longer
9304 that SSL_set_{accept,connect}_state be called before
9305 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
9306 in many applications because usually everything *appeared* to work as
9307 intended anyway -- now it really works as intended).
9310 *) Move openssl.cnf out of lib/.
9313 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
9314 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
9315 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
9316 [Ralf S. Engelschall]
9318 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
9319 handle PKCS#7 enveloped data properly.
9320 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
9322 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
9323 copying pointers. The cert_st handling is changed by this in
9324 various ways (and thus what used to be known as ctx->default_cert
9325 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
9326 any longer when s->cert does not give us what we need).
9327 ssl_cert_instantiate becomes obsolete by this change.
9328 As soon as we've got the new code right (possibly it already is?),
9329 we have solved a couple of bugs of the earlier code where s->cert
9330 was used as if it could not have been shared with other SSL structures.
9332 Note that using the SSL API in certain dirty ways now will result
9333 in different behaviour than observed with earlier library versions:
9334 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
9335 does not influence s as it used to.
9337 In order to clean up things more thoroughly, inside SSL_SESSION
9338 we don't use CERT any longer, but a new structure SESS_CERT
9339 that holds per-session data (if available); currently, this is
9340 the peer's certificate chain and, for clients, the server's certificate
9341 and temporary key. CERT holds only those values that can have
9342 meaningful defaults in an SSL_CTX.
9345 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
9346 from the internal representation. Various PKCS#7 fixes: remove some
9347 evil casts and set the enc_dig_alg field properly based on the signing
9351 *) Allow PKCS#12 password to be set from the command line or the
9352 environment. Let 'ca' get its config file name from the environment
9353 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
9357 *) Allow certificate policies extension to use an IA5STRING for the
9358 organization field. This is contrary to the PKIX definition but
9359 VeriSign uses it and IE5 only recognises this form. Document 'x509'
9363 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
9364 without disallowing inline assembler and the like for non-pedantic builds.
9367 *) Support Borland C++ builder.
9368 [Janez Jere <jj@void.si>, modified by Ulf Möller]
9373 *) SHA-1 cleanups and performance enhancements.
9374 [Andy Polyakov <appro@fy.chalmers.se>]
9376 *) Sparc v8plus assembler for the bignum library.
9377 [Andy Polyakov <appro@fy.chalmers.se>]
9379 *) Accept any -xxx and +xxx compiler options in Configure.
9382 *) Update HPUX configuration.
9385 *) Add missing sk_<type>_unshift() function to safestack.h
9386 [Ralf S. Engelschall]
9388 *) New function SSL_CTX_use_certificate_chain_file that sets the
9389 "extra_cert"s in addition to the certificate. (This makes sense
9390 only for "PEM" format files, as chains as a whole are not
9394 *) Support verify_depth from the SSL API.
9395 x509_vfy.c had what can be considered an off-by-one-error:
9396 Its depth (which was not part of the external interface)
9397 was actually counting the number of certificates in a chain;
9398 now it really counts the depth.
9401 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
9402 instead of X509err, which often resulted in confusing error
9403 messages since the error codes are not globally unique
9404 (e.g. an alleged error in ssl3_accept when a certificate
9405 didn't match the private key).
9407 *) New function SSL_CTX_set_session_id_context that allows to set a default
9408 value (so that you don't need SSL_set_session_id_context for each
9409 connection using the SSL_CTX).
9412 *) OAEP decoding bug fix.
9415 *) Support INSTALL_PREFIX for package builders, as proposed by
9419 *) New Configure options "threads" and "no-threads". For systems
9420 where the proper compiler options are known (currently Solaris
9421 and Linux), "threads" is the default.
9424 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
9427 *) Install various scripts to $(OPENSSLDIR)/misc, not to
9428 $(INSTALLTOP)/bin -- they shouldn't clutter directories
9429 such as /usr/local/bin.
9432 *) "make linux-shared" to build shared libraries.
9433 [Niels Poppe <niels@netbox.org>]
9435 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
9438 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
9439 extension adding in x509 utility.
9442 *) Remove NOPROTO sections and error code comments.
9445 *) Partial rewrite of the DEF file generator to now parse the ANSI
9449 *) New Configure options --prefix=DIR and --openssldir=DIR.
9452 *) Complete rewrite of the error code script(s). It is all now handled
9453 by one script at the top level which handles error code gathering,
9454 header rewriting and C source file generation. It should be much better
9455 than the old method: it now uses a modified version of Ulf's parser to
9456 read the ANSI prototypes in all header files (thus the old K&R definitions
9457 aren't needed for error creation any more) and do a better job of
9458 translating function codes into names. The old 'ASN1 error code imbedded
9459 in a comment' is no longer necessary and it doesn't use .err files which
9460 have now been deleted. Also the error code call doesn't have to appear all
9461 on one line (which resulted in some large lines...).
9464 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
9467 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
9468 0 (which usually indicates a closed connection), but continue reading.
9471 *) Fix some race conditions.
9474 *) Add support for CRL distribution points extension. Add Certificate
9475 Policies and CRL distribution points documentation.
9478 *) Move the autogenerated header file parts to crypto/opensslconf.h.
9481 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
9482 8 of keying material. Merlin has also confirmed interop with this fix
9483 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
9484 [Merlin Hughes <merlin@baltimore.ie>]
9486 *) Fix lots of warnings.
9487 [Richard Levitte <levitte@stacken.kth.se>]
9489 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
9490 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
9491 [Richard Levitte <levitte@stacken.kth.se>]
9493 *) Fix problems with sizeof(long) == 8.
9494 [Andy Polyakov <appro@fy.chalmers.se>]
9496 *) Change functions to ANSI C.
9499 *) Fix typos in error codes.
9500 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
9502 *) Remove defunct assembler files from Configure.
9505 *) SPARC v8 assembler BIGNUM implementation.
9506 [Andy Polyakov <appro@fy.chalmers.se>]
9508 *) Support for Certificate Policies extension: both print and set.
9509 Various additions to support the r2i method this uses.
9512 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
9513 return a const string when you are expecting an allocated buffer.
9516 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
9517 types DirectoryString and DisplayText.
9520 *) Add code to allow r2i extensions to access the configuration database,
9521 add an LHASH database driver and add several ctx helper functions.
9524 *) Fix an evil bug in bn_expand2() which caused various BN functions to
9525 fail when they extended the size of a BIGNUM.
9528 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
9529 support typesafe stack.
9532 *) Fix typo in SSL_[gs]et_options().
9533 [Nils Frostberg <nils@medcom.se>]
9535 *) Delete various functions and files that belonged to the (now obsolete)
9536 old X509V3 handling code.
9539 *) New Configure option "rsaref".
9542 *) Don't auto-generate pem.h.
9545 *) Introduce type-safe ASN.1 SETs.
9548 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
9549 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
9551 *) Introduce type-safe STACKs. This will almost certainly break lots of code
9552 that links with OpenSSL (well at least cause lots of warnings), but fear
9553 not: the conversion is trivial, and it eliminates loads of evil casts. A
9554 few STACKed things have been converted already. Feel free to convert more.
9555 In the fullness of time, I'll do away with the STACK type altogether.
9558 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
9559 specified in <certfile> by updating the entry in the index.txt file.
9560 This way one no longer has to edit the index.txt file manually for
9561 revoking a certificate. The -revoke option does the gory details now.
9562 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
9564 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
9565 `-text' option at all and this way the `-noout -text' combination was
9566 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
9567 [Ralf S. Engelschall]
9569 *) Make sure a corresponding plain text error message exists for the
9570 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
9571 verify callback function determined that a certificate was revoked.
9572 [Ralf S. Engelschall]
9574 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
9575 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
9576 all available cipers including rc5, which was forgotten until now.
9577 In order to let the testing shell script know which algorithms
9578 are available, a new (up to now undocumented) command
9579 "openssl list-cipher-commands" is used.
9582 *) Bugfix: s_client occasionally would sleep in select() when
9583 it should have checked SSL_pending() first.
9586 *) New functions DSA_do_sign and DSA_do_verify to provide access to
9587 the raw DSA values prior to ASN.1 encoding.
9590 *) Tweaks to Configure
9591 [Niels Poppe <niels@netbox.org>]
9593 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
9597 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
9600 *) New config option to avoid instructions that are illegal on the 80386.
9601 The default code is faster, but requires at least a 486.
9604 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
9605 SSL2_SERVER_VERSION (not used at all) macros, which are now the
9606 same as SSL2_VERSION anyway.
9609 *) New "-showcerts" option for s_client.
9612 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
9613 application. Various cleanups and fixes.
9616 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
9617 modify error routines to work internally. Add error codes and PBE init
9618 to library startup routines.
9621 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
9622 packing functions to asn1 and evp. Changed function names and error
9623 codes along the way.
9626 *) PKCS12 integration: and so it begins... First of several patches to
9627 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
9628 objects to objects.h
9631 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
9632 and display support for Thawte strong extranet extension.
9635 *) Add LinuxPPC support.
9636 [Jeff Dubrule <igor@pobox.org>]
9638 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
9639 bn_div_words in alpha.s.
9640 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
9642 *) Make sure the RSA OAEP test is skipped under -DRSAref because
9643 OAEP isn't supported when OpenSSL is built with RSAref.
9644 [Ulf Moeller <ulf@fitug.de>]
9646 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
9647 so they no longer are missing under -DNOPROTO.
9648 [Soren S. Jorvang <soren@t.dk>]
9651 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
9653 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
9654 doesn't work when the session is reused. Coming soon!
9657 *) Fix a security hole, that allows sessions to be reused in the wrong
9658 context thus bypassing client cert protection! All software that uses
9659 client certs and session caches in multiple contexts NEEDS PATCHING to
9660 allow session reuse! A fuller solution is in the works.
9661 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
9663 *) Some more source tree cleanups (removed obsolete files
9664 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
9665 permission on "config" script to be executable) and a fix for the INSTALL
9667 [Ulf Moeller <ulf@fitug.de>]
9669 *) Remove some legacy and erroneous uses of malloc, free instead of
9671 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
9673 *) Make rsa_oaep_test return non-zero on error.
9674 [Ulf Moeller <ulf@fitug.de>]
9676 *) Add support for native Solaris shared libraries. Configure
9677 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
9678 if someone would make that last step automatic.
9679 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
9681 *) ctx_size was not built with the right compiler during "make links". Fixed.
9684 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
9685 except NULL ciphers". This means the default cipher list will no longer
9686 enable NULL ciphers. They need to be specifically enabled e.g. with
9687 the string "DEFAULT:eNULL".
9690 *) Fix to RSA private encryption routines: if p < q then it would
9691 occasionally produce an invalid result. This will only happen with
9692 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
9695 *) Be less restrictive and allow also `perl util/perlpath.pl
9696 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
9697 because this way one can also use an interpreter named `perl5' (which is
9698 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
9699 installed as `perl').
9700 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9702 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
9703 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9705 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
9706 advapi32.lib to Win32 build and change the pem test comparision
9707 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
9708 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
9709 and crypto/des/ede_cbcm_enc.c.
9712 *) DES quad checksum was broken on big-endian architectures. Fixed.
9715 *) Comment out two functions in bio.h that aren't implemented. Fix up the
9716 Win32 test batch file so it (might) work again. The Win32 test batch file
9717 is horrible: I feel ill....
9720 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
9721 in e_os.h. Audit of header files to check ANSI and non ANSI
9722 sections: 10 functions were absent from non ANSI section and not exported
9723 from Windows DLLs. Fixed up libeay.num for new functions.
9726 *) Make `openssl version' output lines consistent.
9727 [Ralf S. Engelschall]
9729 *) Fix Win32 symbol export lists for BIO functions: Added
9730 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9731 to ms/libeay{16,32}.def.
9732 [Ralf S. Engelschall]
9734 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9735 fine under Unix and passes some trivial tests I've now added. But the
9736 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9737 added to make sure no one expects that this stuff really works in the
9738 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9739 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9741 [Ralf S. Engelschall]
9743 *) Fix the generation of two part addresses in perl.
9744 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9746 *) Add config entry for Linux on MIPS.
9747 [John Tobey <jtobey@channel1.com>]
9749 *) Make links whenever Configure is run, unless we are on Windoze.
9752 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9753 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9757 *) Add a useful kludge to allow package maintainers to specify compiler and
9758 other platforms details on the command line without having to patch the
9759 Configure script everytime: One now can use ``perl Configure
9760 <id>:<details>'', i.e. platform ids are allowed to have details appended
9761 to them (seperated by colons). This is treated as there would be a static
9762 pre-configured entry in Configure's %table under key <id> with value
9763 <details> and ``perl Configure <id>'' is called. So, when you want to
9764 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9765 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9766 now, which overrides the FreeBSD-elf entry on-the-fly.
9767 [Ralf S. Engelschall]
9769 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9772 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9773 on the `perl Configure ...' command line. This way one can compile
9774 OpenSSL libraries with Position Independent Code (PIC) which is needed
9775 for linking it into DSOs.
9776 [Ralf S. Engelschall]
9778 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9782 *) Cleaned up the LICENSE document: The official contact for any license
9783 questions now is the OpenSSL core team under openssl-core@openssl.org.
9784 And add a paragraph about the dual-license situation to make sure people
9785 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9786 to the OpenSSL toolkit.
9787 [Ralf S. Engelschall]
9789 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9790 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9791 Additonally cleaned up the `make links' target: Remove unnecessary
9792 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9793 to speed processing and no longer clutter the display with confusing
9794 stuff. Instead only the actually done links are displayed.
9795 [Ralf S. Engelschall]
9797 *) Permit null encryption ciphersuites, used for authentication only. It used
9798 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9799 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9803 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9804 signed attributes when verifying signatures (this would break them),
9805 the detached data encoding was wrong and public keys obtained using
9806 X509_get_pubkey() weren't freed.
9809 *) Add text documentation for the BUFFER functions. Also added a work around
9810 to a Win95 console bug. This was triggered by the password read stuff: the
9811 last character typed gets carried over to the next fread(). If you were
9812 generating a new cert request using 'req' for example then the last
9813 character of the passphrase would be CR which would then enter the first
9817 *) Added the new `Includes OpenSSL Cryptography Software' button as
9818 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9819 button and can be used by applications based on OpenSSL to show the
9820 relationship to the OpenSSL project.
9821 [Ralf S. Engelschall]
9823 *) Remove confusing variables in function signatures in files
9824 ssl/ssl_lib.c and ssl/ssl.h.
9825 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9827 *) Don't install bss_file.c under PREFIX/include/
9828 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9830 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9831 functions that return function pointers and has support for NT specific
9832 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9833 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9834 unsigned to signed types: this was killing the Win32 compile.
9837 *) Add new certificate file to stack functions,
9838 SSL_add_dir_cert_subjects_to_stack() and
9839 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9840 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9841 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9842 This means that Apache-SSL and similar packages don't have to mess around
9843 to add as many CAs as they want to the preferred list.
9846 *) Experiment with doxygen documentation. Currently only partially applied to
9848 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9849 openssl.doxy as the configuration file.
9852 *) Get rid of remaining C++-style comments which strict C compilers hate.
9853 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9855 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9856 compiled in by default: it has problems with large keys.
9859 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9860 DH private keys and/or callback functions which directly correspond to
9861 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9862 is needed for applications which have to configure certificates on a
9863 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9865 For the RSA certificate situation is makes no difference, but
9866 for the DSA certificate situation this fixes the "no shared cipher"
9867 problem where the OpenSSL cipher selection procedure failed because the
9868 temporary keys were not overtaken from the context and the API provided
9869 no way to reconfigure them.
9870 The new functions now let applications reconfigure the stuff and they
9871 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9872 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9873 non-public-API function ssl_cert_instantiate() is used as a helper
9874 function and also to reduce code redundancy inside ssl_rsa.c.
9875 [Ralf S. Engelschall]
9877 *) Move s_server -dcert and -dkey options out of the undocumented feature
9878 area because they are useful for the DSA situation and should be
9879 recognized by the users.
9880 [Ralf S. Engelschall]
9882 *) Fix the cipher decision scheme for export ciphers: the export bits are
9883 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9884 SSL_EXP_MASK. So, the original variable has to be used instead of the
9885 already masked variable.
9886 [Richard Levitte <levitte@stacken.kth.se>]
9888 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9889 [Richard Levitte <levitte@stacken.kth.se>]
9891 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9892 from `int' to `unsigned int' because it's a length and initialized by
9893 EVP_DigestFinal() which expects an `unsigned int *'.
9894 [Richard Levitte <levitte@stacken.kth.se>]
9896 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9897 script. Instead use the usual Shell->Perl transition trick.
9898 [Ralf S. Engelschall]
9900 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9901 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9902 -noout -modulus' as it's already the case for `openssl rsa -noout
9903 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9904 currently the public key is printed (a decision which was already done by
9905 `openssl dsa -modulus' in the past) which serves a similar purpose.
9906 Additionally the NO_RSA no longer completely removes the whole -modulus
9907 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9909 [Ralf S. Engelschall]
9911 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9912 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9913 [Arne Ansper <arne@ats.cyber.ee>]
9915 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9916 to be added. Now both 'req' and 'ca' can use new objects defined in the
9920 *) Add cool BIO that does syslog (or event log on NT).
9921 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9923 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9924 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9925 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9926 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9929 *) Add preliminary config info for new extension code.
9932 *) Make RSA_NO_PADDING really use no padding.
9933 [Ulf Moeller <ulf@fitug.de>]
9935 *) Generate errors when private/public key check is done.
9938 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9939 for some CRL extensions and new objects added.
9942 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9943 key usage extension and fuller support for authority key id.
9946 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9947 padding method for RSA, which is recommended for new applications in PKCS
9948 #1 v2.0 (RFC 2437, October 1998).
9949 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9950 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9951 against Bleichbacher's attack on RSA.
9952 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9955 *) Updates to the new SSL compression code
9956 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9958 *) Fix so that the version number in the master secret, when passed
9959 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9960 (because the server will not accept higher), that the version number
9961 is 0x03,0x01, not 0x03,0x00
9962 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9964 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9965 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9966 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9969 *) Support for RAW extensions where an arbitrary extension can be
9970 created by including its DER encoding. See apps/openssl.cnf for
9974 *) Make sure latest Perl versions don't interpret some generated C array
9975 code as Perl array code in the crypto/err/err_genc.pl script.
9976 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9978 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9979 not many people have the assembler. Various Win32 compilation fixes and
9980 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9984 *) Modify configure script 'Configure' to automatically create crypto/date.h
9985 file under Win32 and also build pem.h from pem.org. New script
9986 util/mkfiles.pl to create the MINFO file on environments that can't do a
9987 'make files': perl util/mkfiles.pl >MINFO should work.
9990 *) Major rework of DES function declarations, in the pursuit of correctness
9991 and purity. As a result, many evil casts evaporated, and some weirdness,
9992 too. You may find this causes warnings in your code. Zapping your evil
9993 casts will probably fix them. Mostly.
9996 *) Fix for a typo in asn1.h. Bug fix to object creation script
9997 obj_dat.pl. It considered a zero in an object definition to mean
9998 "end of object": none of the objects in objects.h have any zeros
9999 so it wasn't spotted.
10000 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
10002 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
10003 Masking (CBCM). In the absence of test vectors, the best I have been able
10004 to do is check that the decrypt undoes the encrypt, so far. Send me test
10005 vectors if you have them.
10008 *) Correct calculation of key length for export ciphers (too much space was
10009 allocated for null ciphers). This has not been tested!
10012 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
10013 message is now correct (it understands "crypto" and "ssl" on its
10014 command line). There is also now an "update" option. This will update
10015 the util/ssleay.num and util/libeay.num files with any new functions.
10017 perl util/mkdef.pl crypto ssl update
10018 it will update them.
10021 *) Overhauled the Perl interface (perl/*):
10022 - ported BN stuff to OpenSSL's different BN library
10023 - made the perl/ source tree CVS-aware
10024 - renamed the package from SSLeay to OpenSSL (the files still contain
10025 their history because I've copied them in the repository)
10026 - removed obsolete files (the test scripts will be replaced
10027 by better Test::Harness variants in the future)
10028 [Ralf S. Engelschall]
10030 *) First cut for a very conservative source tree cleanup:
10031 1. merge various obsolete readme texts into doc/ssleay.txt
10032 where we collect the old documents and readme texts.
10033 2. remove the first part of files where I'm already sure that we no
10034 longer need them because of three reasons: either they are just temporary
10035 files which were left by Eric or they are preserved original files where
10036 I've verified that the diff is also available in the CVS via "cvs diff
10037 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
10038 the crypto/md/ stuff).
10039 [Ralf S. Engelschall]
10041 *) More extension code. Incomplete support for subject and issuer alt
10042 name, issuer and authority key id. Change the i2v function parameters
10043 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
10044 what that's for :-) Fix to ASN1 macro which messed up
10045 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
10048 *) Preliminary support for ENUMERATED type. This is largely copied from the
10052 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
10053 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10055 *) Make sure `make rehash' target really finds the `openssl' program.
10056 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
10058 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
10059 like to hear about it if this slows down other processors.
10062 *) Add CygWin32 platform information to Configure script.
10063 [Alan Batie <batie@aahz.jf.intel.com>]
10065 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
10066 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
10068 *) New program nseq to manipulate netscape certificate sequences
10071 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
10075 *) Fixes to BN code. Previously the default was to define BN_RECURSION
10076 but the BN code had some problems that would cause failures when
10077 doing certificate verification and some other functions.
10078 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10080 *) Add ASN1 and PEM code to support netscape certificate sequences.
10083 *) Add ASN1 and PEM code to support netscape certificate sequences.
10086 *) Add several PKIX and private extended key usage OIDs.
10089 *) Modify the 'ca' program to handle the new extension code. Modify
10090 openssl.cnf for new extension format, add comments.
10093 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
10094 and add a sample to openssl.cnf so req -x509 now adds appropriate
10098 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
10099 error code, add initial support to X509_print() and x509 application.
10102 *) Takes a deep breath and start addding X509 V3 extension support code. Add
10103 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
10104 stuff is currently isolated and isn't even compiled yet.
10107 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
10108 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
10109 Removed the versions check from X509 routines when loading extensions:
10110 this allows certain broken certificates that don't set the version
10111 properly to be processed.
10114 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
10115 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
10116 can still be regenerated with "make depend".
10119 *) Spelling mistake in C version of CAST-128.
10120 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
10122 *) Changes to the error generation code. The perl script err-code.pl
10123 now reads in the old error codes and retains the old numbers, only
10124 adding new ones if necessary. It also only changes the .err files if new
10125 codes are added. The makefiles have been modified to only insert errors
10126 when needed (to avoid needlessly modifying header files). This is done
10127 by only inserting errors if the .err file is newer than the auto generated
10128 C file. To rebuild all the error codes from scratch (the old behaviour)
10129 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
10130 or delete all the .err files.
10133 *) CAST-128 was incorrectly implemented for short keys. The C version has
10134 been fixed, but is untested. The assembler versions are also fixed, but
10135 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
10136 to regenerate it if needed.
10137 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
10138 Hagino <itojun@kame.net>]
10140 *) File was opened incorrectly in randfile.c.
10141 [Ulf Möller <ulf@fitug.de>]
10143 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
10144 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
10145 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
10146 al: it's just almost always a UTCTime. Note this patch adds new error
10147 codes so do a "make errors" if there are problems.
10150 *) Correct Linux 1 recognition in config.
10151 [Ulf Möller <ulf@fitug.de>]
10153 *) Remove pointless MD5 hash when using DSA keys in ca.
10154 [Anonymous <nobody@replay.com>]
10156 *) Generate an error if given an empty string as a cert directory. Also
10157 generate an error if handed NULL (previously returned 0 to indicate an
10158 error, but didn't set one).
10159 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
10161 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
10164 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
10165 parameters. This was causing a warning which killed off the Win32 compile.
10168 *) Remove C++ style comments from crypto/bn/bn_local.h.
10169 [Neil Costigan <neil.costigan@celocom.com>]
10171 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
10172 based on a text string, looking up short and long names and finally
10173 "dot" format. The "dot" format stuff didn't work. Added new function
10174 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
10175 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
10176 OID is not part of the table.
10179 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
10180 X509_LOOKUP_by_alias().
10183 *) Sort openssl functions by name.
10186 *) Get the gendsa program working (hopefully) and add it to app list. Remove
10187 encryption from sample DSA keys (in case anyone is interested the password
10191 *) Make _all_ *_free functions accept a NULL pointer.
10192 [Frans Heymans <fheymans@isaserver.be>]
10194 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
10196 [Anonymous <nobody@replay.com>]
10198 *) s_server should send the CAfile as acceptable CAs, not its own cert.
10199 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
10201 *) Don't blow it for numeric -newkey arguments to apps/req.
10202 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
10204 *) Temp key "for export" tests were wrong in s3_srvr.c.
10205 [Anonymous <nobody@replay.com>]
10207 *) Add prototype for temp key callback functions
10208 SSL_CTX_set_tmp_{rsa,dh}_callback().
10211 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
10212 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
10215 *) X509_name_add_entry() freed the wrong thing after an error.
10216 [Arne Ansper <arne@ats.cyber.ee>]
10218 *) rsa_eay.c would attempt to free a NULL context.
10219 [Arne Ansper <arne@ats.cyber.ee>]
10221 *) BIO_s_socket() had a broken should_retry() on Windoze.
10222 [Arne Ansper <arne@ats.cyber.ee>]
10224 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
10225 [Arne Ansper <arne@ats.cyber.ee>]
10227 *) Make sure the already existing X509_STORE->depth variable is initialized
10228 in X509_STORE_new(), but document the fact that this variable is still
10229 unused in the certificate verification process.
10230 [Ralf S. Engelschall]
10232 *) Fix the various library and apps files to free up pkeys obtained from
10233 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
10236 *) Fix reference counting in X509_PUBKEY_get(). This makes
10237 demos/maurice/example2.c work, amongst others, probably.
10238 [Steve Henson and Ben Laurie]
10240 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
10241 `openssl' and second, the shortcut symlinks for the `openssl <command>'
10242 are no longer created. This way we have a single and consistent command
10243 line interface `openssl <command>', similar to `cvs <command>'.
10244 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
10246 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
10247 BIT STRING wrapper always have zero unused bits.
10250 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
10253 *) Make the top-level INSTALL documentation easier to understand.
10256 *) Makefiles updated to exit if an error occurs in a sub-directory
10257 make (including if user presses ^C) [Paul Sutton]
10259 *) Make Montgomery context stuff explicit in RSA data structure.
10262 *) Fix build order of pem and err to allow for generated pem.h.
10265 *) Fix renumbering bug in X509_NAME_delete_entry().
10268 *) Enhanced the err-ins.pl script so it makes the error library number
10269 global and can add a library name. This is needed for external ASN1 and
10270 other error libraries.
10273 *) Fixed sk_insert which never worked properly.
10276 *) Fix ASN1 macros so they can handle indefinite length construted
10277 EXPLICIT tags. Some non standard certificates use these: they can now
10281 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
10282 into a single doc/ssleay.txt bundle. This way the information is still
10283 preserved but no longer messes up this directory. Now it's new room for
10284 the new set of documenation files.
10285 [Ralf S. Engelschall]
10287 *) SETs were incorrectly DER encoded. This was a major pain, because they
10288 shared code with SEQUENCEs, which aren't coded the same. This means that
10289 almost everything to do with SETs or SEQUENCEs has either changed name or
10290 number of arguments.
10291 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
10293 *) Fix test data to work with the above.
10296 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
10297 was already fixed by Eric for 0.9.1 it seems.
10298 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
10300 *) Autodetect FreeBSD3.
10303 *) Fix various bugs in Configure. This affects the following platforms:
10307 unixware-2.0-pentium
10311 *) Eliminate generated files from CVS. Reorder tests to regenerate files
10312 before they are needed.
10315 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
10319 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
10321 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
10322 changed SSLeay to OpenSSL in version strings.
10323 [Ralf S. Engelschall]
10325 *) Some fixups to the top-level documents.
10328 *) Fixed the nasty bug where rsaref.h was not found under compile-time
10329 because the symlink to include/ was missing.
10330 [Ralf S. Engelschall]
10332 *) Incorporated the popular no-RSA/DSA-only patches
10333 which allow to compile a RSA-free SSLeay.
10334 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
10336 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
10337 when "ssleay" is still not found.
10338 [Ralf S. Engelschall]
10340 *) Added more platforms to Configure: Cray T3E, HPUX 11,
10341 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
10343 *) Updated the README file.
10344 [Ralf S. Engelschall]
10346 *) Added various .cvsignore files in the CVS repository subdirs
10347 to make a "cvs update" really silent.
10348 [Ralf S. Engelschall]
10350 *) Recompiled the error-definition header files and added
10351 missing symbols to the Win32 linker tables.
10352 [Ralf S. Engelschall]
10354 *) Cleaned up the top-level documents;
10355 o new files: CHANGES and LICENSE
10356 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
10357 o merged COPYRIGHT into LICENSE
10358 o removed obsolete TODO file
10359 o renamed MICROSOFT to INSTALL.W32
10360 [Ralf S. Engelschall]
10362 *) Removed dummy files from the 0.9.1b source tree:
10363 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
10364 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
10365 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
10366 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
10367 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
10368 [Ralf S. Engelschall]
10370 *) Added various platform portability fixes.
10373 *) The Genesis of the OpenSSL rpject:
10374 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
10375 Young and Tim J. Hudson created while they were working for C2Net until
10377 [The OpenSSL Project]
10380 Changes between 0.9.0b and 0.9.1b [not released]
10382 *) Updated a few CA certificates under certs/
10385 *) Changed some BIGNUM api stuff.
10388 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
10389 DGUX x86, Linux Alpha, etc.
10392 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
10393 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
10397 *) Add -strparse option to asn1pars program which parses nested
10399 [Dr Stephen Henson <shenson@bigfoot.com>]
10401 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
10404 *) DSA fix for "ca" program.
10407 *) Added "-genkey" option to "dsaparam" program.
10410 *) Added RIPE MD160 (rmd160) message digest.
10413 *) Added -a (all) option to "ssleay version" command.
10416 *) Added PLATFORM define which is the id given to Configure.
10419 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
10422 *) Extended the ASN.1 parser routines.
10425 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
10428 *) Added a BN_CTX to the BN library.
10431 *) Fixed the weak key values in DES library
10434 *) Changed API in EVP library for cipher aliases.
10437 *) Added support for RC2/64bit cipher.
10440 *) Converted the lhash library to the crypto/mem.c functions.
10443 *) Added more recognized ASN.1 object ids.
10446 *) Added more RSA padding checks for SSL/TLS.
10449 *) Added BIO proxy/filter functionality.
10452 *) Added extra_certs to SSL_CTX which can be used
10453 send extra CA certificates to the client in the CA cert chain sending
10454 process. It can be configured with SSL_CTX_add_extra_chain_cert().
10457 *) Now Fortezza is denied in the authentication phase because
10458 this is key exchange mechanism is not supported by SSLeay at all.
10461 *) Additional PKCS1 checks.
10464 *) Support the string "TLSv1" for all TLS v1 ciphers.
10467 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
10468 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
10471 *) Fixed a few memory leaks.
10474 *) Fixed various code and comment typos.
10477 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
10478 bytes sent in the client random.
10479 [Edward Bishop <ebishop@spyglass.com>]
projects / oweals / openssl.git / blob