5 Changes between 1.0.x and 1.1.0 [xx XXX xxxx]
7 *) Add -rev test option to s_server to just reverse order of characters
8 received by client and send back to server. Also prints an abbreviated
9 summary of the connection parameters.
12 *) New option -brief for s_client and s_server to print out a brief summary
13 of connection parameters.
16 *) Add functions to retrieve and manipulate the raw cipherlist sent by a
20 *) New Suite B modes for TLS code. These use and enforce the requirements
21 of RFC6460: restrict ciphersuites, only permit Suite B algorithms and
22 only use Suite B curves. The Suite B modes can be set by using the
23 strings "SUITEB128", "SUITEB192" or "SUITEB128ONLY" for the cipherstring.
26 *) New chain verification flags for Suite B levels of security. Check
27 algorithms are acceptable when flags are set in X509_verify_cert.
30 *) Make tls1_check_chain return a set of flags indicating checks passed
31 by a certificate chain. Add additional tests to handle client
32 certificates: checks for matching certificate type and issuer name
36 *) If an attempt is made to use a signature algorithm not in the peer
37 preference list abort the handshake. If client has no suitable
38 signature algorithms in response to a certificate request do not
42 *) If server EC tmp key is not in client preference list abort handshake.
45 *) Add support for certificate stores in CERT structure. This makes it
46 possible to have different stores per SSL structure or one store in
47 the parent SSL_CTX. Include distint stores for certificate chain
48 verification and chain building. New ctrl SSL_CTRL_BUILD_CERT_CHAIN
49 to build and store a certificate chain in CERT structure: returing
50 an error if the chain cannot be built: this will allow applications
51 to test if a chain is correctly configured.
53 Note: if the CERT based stores are not set then the parent SSL_CTX
54 store is used to retain compatibility with existing behaviour.
58 *) New function ssl_set_client_disabled to set a ciphersuite disabled
59 mask based on the current session, check mask when sending client
60 hello and checking the requested ciphersuite.
63 *) New ctrls to retrieve and set certificate types in a certificate
64 request message. Print out received values in s_client. If certificate
65 types is not set with custom values set sensible values based on
66 supported signature algorithms.
69 *) Support for distinct client and server supported signature algorithms.
72 *) Add certificate callback. If set this is called whenever a certificate
73 is required by client or server. An application can decide which
74 certificate chain to present based on arbitrary criteria: for example
75 supported signature algorithms. Add very simple example to s_server.
76 This fixes many of the problems and restrictions of the existing client
77 certificate callback: for example you can now clear an existing
78 certificate and specify the whole chain.
81 *) Add new "valid_flags" field to CERT_PKEY structure which determines what
82 the certificate can be used for (if anything). Set valid_flags field
83 in new tls1_check_chain function. Simplify ssl_set_cert_masks which used
84 to have similar checks in it.
86 Add new "cert_flags" field to CERT structure and include a "strict mode".
87 This enforces some TLS certificate requirements (such as only permitting
88 certificate signature algorithms contained in the supported algorithms
89 extension) which some implementations ignore: this option should be used
90 with caution as it could cause interoperability issues.
93 *) Update and tidy signature algorithm extension processing. Work out
94 shared signature algorithms based on preferences and peer algorithms
95 and print them out in s_client and s_server. Abort handshake if no
96 shared signature algorithms.
99 *) Add new functions to allow customised supported signature algorithms
100 for SSL and SSL_CTX structures. Add options to s_client and s_server
104 *) New function SSL_certs_clear() to delete all references to certificates
105 from an SSL structure. Before this once a certificate had been added
106 it couldn't be removed.
109 *) Initial SSL tracing code. This parses out SSL/TLS records using the
110 message callback and prints the results. Needs compile time option
111 "enable-ssl-trace". New options to s_client and s_server to enable
115 *) New functions to retrieve certificate signature and signature
119 *) Print out deprecated issuer and subject unique ID fields in
123 *) Update fips_test_suite to support multiple command line options. New
124 test to induce all self test errors in sequence and check expected
128 *) Add FIPS_{rsa,dsa,ecdsa}_{sign,verify} functions which digest and
129 sign or verify all in one operation.
132 *) Add fips_algvs: a multicall fips utility incorporaing all the algorithm
133 test programs and fips_test_suite. Includes functionality to parse
134 the minimal script output of fipsalgest.pl directly.
137 *) Add authorisation parameter to FIPS_module_mode_set().
140 *) Add FIPS selftest for ECDH algorithm using P-224 and B-233 curves.
143 *) Use separate DRBG fields for internal and external flags. New function
144 FIPS_drbg_health_check() to perform on demand health checking. Add
145 generation tests to fips_test_suite with reduced health check interval to
146 demonstrate periodic health checking. Add "nodh" option to
147 fips_test_suite to skip very slow DH test.
150 *) New function FIPS_get_cipherbynid() to lookup FIPS supported ciphers
154 *) More extensive health check for DRBG checking many more failure modes.
155 New function FIPS_selftest_drbg_all() to handle every possible DRBG
156 combination: call this in fips_test_suite.
159 *) Add support for Dual EC DRBG from SP800-90. Update DRBG algorithm test
160 and POST to handle Dual EC cases.
163 *) Add support for canonical generation of DSA parameter 'g'. See
166 *) Add support for HMAC DRBG from SP800-90. Update DRBG algorithm test and
167 POST to handle HMAC cases.
170 *) Add functions FIPS_module_version() and FIPS_module_version_text()
171 to return numberical and string versions of the FIPS module number.
174 *) Rename FIPS_mode_set and FIPS_mode to FIPS_module_mode_set and
175 FIPS_module_mode. FIPS_mode and FIPS_mode_set will be implmeneted
176 outside the validated module in the FIPS capable OpenSSL.
179 *) Minor change to DRBG entropy callback semantics. In some cases
180 there is no mutiple of the block length between min_len and
181 max_len. Allow the callback to return more than max_len bytes
182 of entropy but discard any extra: it is the callback's responsibility
183 to ensure that the extra data discarded does not impact the
184 requested amount of entropy.
187 *) Add PRNG security strength checks to RSA, DSA and ECDSA using
188 information in FIPS186-3, SP800-57 and SP800-131A.
191 *) CCM support via EVP. Interface is very similar to GCM case except we
192 must supply all data in one chunk (i.e. no update, final) and the
193 message length must be supplied if AAD is used. Add algorithm test
197 *) Initial version of POST overhaul. Add POST callback to allow the status
198 of POST to be monitored and/or failures induced. Modify fips_test_suite
199 to use callback. Always run all selftests even if one fails.
202 *) XTS support including algorithm test driver in the fips_gcmtest program.
203 Note: this does increase the maximum key length from 32 to 64 bytes but
204 there should be no binary compatibility issues as existing applications
205 will never use XTS mode.
208 *) Extensive reorganisation of FIPS PRNG behaviour. Remove all dependencies
209 to OpenSSL RAND code and replace with a tiny FIPS RAND API which also
210 performs algorithm blocking for unapproved PRNG types. Also do not
211 set PRNG type in FIPS_mode_set(): leave this to the application.
212 Add default OpenSSL DRBG handling: sets up FIPS PRNG and seeds with
213 the standard OpenSSL PRNG: set additional data to a date time vector.
216 *) Rename old X9.31 PRNG functions of the form FIPS_rand* to FIPS_x931*.
217 This shouldn't present any incompatibility problems because applications
218 shouldn't be using these directly and any that are will need to rethink
219 anyway as the X9.31 PRNG is now deprecated by FIPS 140-2
222 *) Extensive self tests and health checking required by SP800-90 DRBG.
223 Remove strength parameter from FIPS_drbg_instantiate and always
224 instantiate at maximum supported strength.
227 *) Add ECDH code to fips module and fips_ecdhvs for primitives only testing.
230 *) New algorithm test program fips_dhvs to handle DH primitives only testing.
233 *) New function DH_compute_key_padded() to compute a DH key and pad with
234 leading zeroes if needed: this complies with SP800-56A et al.
237 *) Initial implementation of SP800-90 DRBGs for Hash and CTR. Not used by
238 anything, incomplete, subject to change and largely untested at present.
241 *) Modify fipscanisteronly build option to only build the necessary object
242 files by filtering FIPS_EX_OBJ through a perl script in crypto/Makefile.
245 *) Add experimental option FIPSSYMS to give all symbols in
246 fipscanister.o and FIPS or fips prefix. This will avoid
247 conflicts with future versions of OpenSSL. Add perl script
248 util/fipsas.pl to preprocess assembly language source files
249 and rename any affected symbols.
252 *) Add selftest checks and algorithm block of non-fips algorithms in
253 FIPS mode. Remove DES2 from selftests.
256 *) Add ECDSA code to fips module. Add tiny fips_ecdsa_check to just
257 return internal method without any ENGINE dependencies. Add new
258 tiny fips sign and verify functions.
261 *) New build option no-ec2m to disable characteristic 2 code.
264 *) New build option "fipscanisteronly". This only builds fipscanister.o
265 and (currently) associated fips utilities. Uses the file Makefile.fips
266 instead of Makefile.org as the prototype.
269 *) Add some FIPS mode restrictions to GCM. Add internal IV generator.
270 Update fips_gcmtest to use IV generator.
273 *) Initial, experimental EVP support for AES-GCM. AAD can be input by
274 setting output buffer to NULL. The *Final function must be
275 called although it will not retrieve any additional data. The tag
276 can be set or retrieved with a ctrl. The IV length is by default 12
277 bytes (96 bits) but can be set to an alternative value. If the IV
278 length exceeds the maximum IV length (currently 16 bytes) it cannot be
282 *) New flag in ciphers: EVP_CIPH_FLAG_CUSTOM_CIPHER. This means the
283 underlying do_cipher function handles all cipher semantics itself
284 including padding and finalisation. This is useful if (for example)
285 an ENGINE cipher handles block padding itself. The behaviour of
286 do_cipher is subtly changed if this flag is set: the return value
287 is the number of characters written to the output buffer (zero is
288 no longer an error code) or a negative error code. Also if the
289 input buffer is NULL and length 0 finalisation should be performed.
292 *) If a candidate issuer certificate is already part of the constructed
293 path ignore it: new debug notification X509_V_ERR_PATH_LOOP for this case.
296 *) Improve forward-security support: add functions
298 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure))
299 void SSL_set_not_resumable_session_callback(SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure))
301 for use by SSL/TLS servers; the callback function will be called whenever a
302 new session is created, and gets to decide whether the session may be
303 cached to make it resumable (return 0) or not (return 1). (As by the
304 SSL/TLS protocol specifications, the session_id sent by the server will be
305 empty to indicate that the session is not resumable; also, the server will
306 not generate RFC 4507 (RFC 5077) session tickets.)
308 A simple reasonable callback implementation is to return is_forward_secure.
309 This parameter will be set to 1 or 0 depending on the ciphersuite selected
310 by the SSL/TLS server library, indicating whether it can provide forward
312 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
314 *) New function OPENSSL_gmtime_diff to find the difference in days
315 and seconds between two tm structures. This will be used to provide
316 additional functionality for ASN1_TIME.
319 *) Add -trusted_first option which attempts to find certificates in the
320 trusted store even if an untrusted chain is also supplied.
323 *) Initial experimental support for explicitly trusted non-root CAs.
324 OpenSSL still tries to build a complete chain to a root but if an
325 intermediate CA has a trust setting included that is used. The first
326 setting is used: whether to trust or reject.
329 *) New -verify_name option in command line utilities to set verification
333 *) Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE.
334 Add CMAC pkey methods.
337 *) Experimental regnegotiation in s_server -www mode. If the client
338 browses /reneg connection is renegotiated. If /renegcert it is
339 renegotiated requesting a certificate.
342 *) Add an "external" session cache for debugging purposes to s_server. This
343 should help trace issues which normally are only apparent in deployed
344 multi-process servers.
347 *) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where
348 return value is ignored. NB. The functions RAND_add(), RAND_seed(),
349 BIO_set_cipher() and some obscure PEM functions were changed so they
350 can now return an error. The RAND changes required a change to the
351 RAND_METHOD structure.
354 *) New macro __owur for "OpenSSL Warn Unused Result". This makes use of
355 a gcc attribute to warn if the result of a function is ignored. This
356 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h
357 whose return value is often ignored.
360 Changes between 1.0.1 and 1.0.2 [xx XXX xxxx]
362 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
363 the right response is stapled. Also change current certificate to
364 the certificate actually sent.
365 See http://rt.openssl.org/Ticket/Display.html?id=2836.
366 [Rob Stradling <rob.stradling@comodo.com>]
368 *) Support for linux-x32, ILP32 environment in x86_64 framework.
372 [Emilia Kasper, Adam Langley, Ben Laurie (Google)]
374 *) Experimental multi-implementation support for FIPS capable OpenSSL.
375 When in FIPS mode the approved implementations are used as normal,
376 when not in FIPS mode the internal unapproved versions are used instead.
377 This means that the FIPS capable OpenSSL isn't forced to use the
378 (often lower perfomance) FIPS implementations outside FIPS mode.
381 *) Transparently support X9.42 DH parameters when calling
382 PEM_read_bio_DHparameters. This means existing applications can handle
383 the new parameter format automatically.
386 *) Initial experimental support for X9.42 DH parameter format: mainly
387 to support use of 'q' parameter for RFC5114 parameters.
390 *) Add DH parameters from RFC5114 including test data to dhtest.
393 *) Support for automatic EC temporary key parameter selection. If enabled
394 the most preferred EC parameters are automatically used instead of
395 hardcoded fixed parameters. Now a server just has to call:
396 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically
397 support ECDH and use the most appropriate parameters.
400 *) Enhance and tidy EC curve and point format TLS extension code. Use
401 static structures instead of allocation if default values are used.
402 New ctrls to set curves we wish to support and to retrieve shared curves.
403 Print out shared curves in s_server. New options to s_server and s_client
404 to set list of supported curves.
407 *) New ctrls to retrieve supported signature algorithms and
408 supported curve values as an array of NIDs. Extend openssl utility
409 to print out received values.
412 *) Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert
413 between NIDs and the more common NIST names such as "P-256". Enhance
414 ecparam utility and ECC method to recognise the NIST names for curves.
417 *) Enhance SSL/TLS certificate chain handling to support different
418 chains for each certificate instead of one chain in the parent SSL_CTX.
421 *) Support for fixed DH ciphersuite client authentication: where both
422 server and client use DH certificates with common parameters.
425 *) Support for fixed DH ciphersuites: those requiring DH server
429 Changes between 1.0.1c and 1.0.1d [xx XXX xxxx]
431 *) Fix possible deadlock when decoding public keys.
434 *) Don't use TLS 1.0 record version number in initial client hello
438 Changes between 1.0.1b and 1.0.1c [10 May 2012]
440 *) Sanity check record length before skipping explicit IV in TLS
441 1.2, 1.1 and DTLS to avoid DoS attack.
443 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
444 fuzzing as a service testing platform.
448 *) Initialise tkeylen properly when encrypting CMS messages.
449 Thanks to Solar Designer of Openwall for reporting this issue.
452 *) In FIPS mode don't try to use composite ciphers as they are not
456 Changes between 1.0.1a and 1.0.1b [26 Apr 2012]
458 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and
459 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately
460 mean any application compiled against OpenSSL 1.0.0 headers setting
461 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng
462 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to
463 0x10000000L Any application which was previously compiled against
464 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1
465 will need to be recompiled as a result. Letting be results in
466 inability to disable specifically TLS 1.1 and in client context,
467 in unlike event, limit maximum offered version to TLS 1.0 [see below].
470 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not
471 disable just protocol X, but all protocols above X *if* there are
472 protocols *below* X still enabled. In more practical terms it means
473 that if application wants to disable TLS1.0 in favor of TLS1.1 and
474 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass
475 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to
479 Changes between 1.0.1 and 1.0.1a [19 Apr 2012]
481 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
482 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
483 in CRYPTO_realloc_clean.
485 Thanks to Tavis Ormandy, Google Security Team, for discovering this
486 issue and to Adam Langley <agl@chromium.org> for fixing it.
488 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
490 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections.
493 *) Workarounds for some broken servers that "hang" if a client hello
494 record length exceeds 255 bytes:
496 1. Do not use record version number > TLS 1.0 in initial client
497 hello: some (but not all) hanging servers will now work.
498 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate
499 the number of ciphers sent in the client hello. This should be
500 set to an even number, such as 50, for example by passing:
501 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure.
502 Most broken servers should now work.
503 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable
504 TLS 1.2 client support entirely.
507 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH.
510 Changes between 1.0.0h and 1.0.1 [14 Mar 2012]
512 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
513 STRING form instead of a DigestInfo.
516 *) The format used for MDC2 RSA signatures is inconsistent between EVP
517 and the RSA_sign/RSA_verify functions. This was made more apparent when
518 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
519 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect
520 the correct format in RSA_verify so both forms transparently work.
523 *) Some servers which support TLS 1.0 can choke if we initially indicate
524 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
525 encrypted premaster secret. As a workaround use the maximum pemitted
526 client version in client hello, this should keep such servers happy
527 and still work with previous versions of OpenSSL.
530 *) Add support for TLS/DTLS heartbeats.
531 [Robin Seggelmann <seggelmann@fh-muenster.de>]
533 *) Add support for SCTP.
534 [Robin Seggelmann <seggelmann@fh-muenster.de>]
536 *) Improved PRNG seeding for VOS.
537 [Paul Green <Paul.Green@stratus.com>]
539 *) Extensive assembler packs updates, most notably:
541 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
542 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
543 - x86_64: bit-sliced AES implementation;
544 - ARM: NEON support, contemporary platforms optimizations;
545 - s390x: z196 support;
546 - *: GHASH and GF(2^m) multiplication implementations;
550 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
551 (removal of unnecessary code)
552 [Peter Sylvester <peter.sylvester@edelweb.fr>]
554 *) Add TLS key material exporter from RFC 5705.
557 *) Add DTLS-SRTP negotiation from RFC 5764.
560 *) Add Next Protocol Negotiation,
561 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
562 disabled with a no-npn flag to config or Configure. Code donated
564 [Adam Langley <agl@google.com> and Ben Laurie]
566 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
567 NIST-P256, NIST-P521, with constant-time single point multiplication on
568 typical inputs. Compiler support for the nonstandard type __uint128_t is
569 required to use this (present in gcc 4.4 and later, for 64-bit builds).
570 Code made available under Apache License version 2.0.
572 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
573 line to include this in your build of OpenSSL, and run "make depend" (or
574 "make update"). This enables the following EC_METHODs:
576 EC_GFp_nistp224_method()
577 EC_GFp_nistp256_method()
578 EC_GFp_nistp521_method()
580 EC_GROUP_new_by_curve_name() will automatically use these (while
581 EC_GROUP_new_curve_GFp() currently prefers the more flexible
583 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
585 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
586 all platforms. Move ssize_t definition from e_os.h to the public
587 header file e_os2.h as it now appears in public header file cms.h
590 *) New -sigopt option to the ca, req and x509 utilities. Additional
591 signature parameters can be passed using this option and in
595 *) Add RSA PSS signing function. This will generate and set the
596 appropriate AlgorithmIdentifiers for PSS based on those in the
597 corresponding EVP_MD_CTX structure. No application support yet.
600 *) Support for companion algorithm specific ASN1 signing routines.
601 New function ASN1_item_sign_ctx() signs a pre-initialised
602 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
603 the appropriate parameters.
606 *) Add new algorithm specific ASN1 verification initialisation function
607 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
608 handling will be the same no matter what EVP_PKEY_METHOD is used.
609 Add a PSS handler to support verification of PSS signatures: checked
610 against a number of sample certificates.
613 *) Add signature printing for PSS. Add PSS OIDs.
614 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
616 *) Add algorithm specific signature printing. An individual ASN1 method
617 can now print out signatures instead of the standard hex dump.
619 More complex signatures (e.g. PSS) can print out more meaningful
620 information. Include DSA version that prints out the signature
624 *) Password based recipient info support for CMS library: implementing
628 *) Split password based encryption into PBES2 and PBKDF2 functions. This
629 neatly separates the code into cipher and PBE sections and is required
630 for some algorithms that split PBES2 into separate pieces (such as
634 *) Session-handling fixes:
635 - Fix handling of connections that are resuming with a session ID,
636 but also support Session Tickets.
637 - Fix a bug that suppressed issuing of a new ticket if the client
638 presented a ticket with an expired session.
639 - Try to set the ticket lifetime hint to something reasonable.
640 - Make tickets shorter by excluding irrelevant information.
641 - On the client side, don't ignore renewed tickets.
642 [Adam Langley, Bodo Moeller (Google)]
644 *) Fix PSK session representation.
647 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
649 This work was sponsored by Intel.
652 *) Add GCM support to TLS library. Some custom code is needed to split
653 the IV between the fixed (from PRF) and explicit (from TLS record)
654 portions. This adds all GCM ciphersuites supported by RFC5288 and
655 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
656 add a special AESGCM string for GCM only.
659 *) Expand range of ctrls for AES GCM. Permit setting invocation
660 field on decrypt and retrieval of invocation field only on encrypt.
663 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
664 As required by RFC5289 these ciphersuites cannot be used if for
665 versions of TLS earlier than 1.2.
668 *) For FIPS capable OpenSSL interpret a NULL default public key method
669 as unset and return the appopriate default but do *not* set the default.
670 This means we can return the appopriate method in applications that
671 swicth between FIPS and non-FIPS modes.
674 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
675 ENGINE is used then we cannot handle that in the FIPS module so we
676 keep original code iff non-FIPS operations are allowed.
679 *) Add -attime option to openssl utilities.
680 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
682 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
685 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
686 FIPS EC methods unconditionally for now.
689 *) New build option no-ec2m to disable characteristic 2 code.
692 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
693 all cases can be covered as some introduce binary incompatibilities.
696 *) Redirect RSA operations to FIPS module including keygen,
697 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
700 *) Add similar low level API blocking to ciphers.
703 *) Low level digest APIs are not approved in FIPS mode: any attempt
704 to use these will cause a fatal error. Applications that *really* want
705 to use them can use the private_* version instead.
708 *) Redirect cipher operations to FIPS module for FIPS builds.
711 *) Redirect digest operations to FIPS module for FIPS builds.
714 *) Update build system to add "fips" flag which will link in fipscanister.o
715 for static and shared library builds embedding a signature if needed.
718 *) Output TLS supported curves in preference order instead of numerical
719 order. This is currently hardcoded for the highest order curves first.
720 This should be configurable so applications can judge speed vs strength.
723 *) Add TLS v1.2 server support for client authentication.
726 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
730 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
731 FIPS modules versions.
734 *) Add TLS v1.2 client side support for client authentication. Keep cache
735 of handshake records longer as we don't know the hash algorithm to use
736 until after the certificate request message is received.
739 *) Initial TLS v1.2 client support. Add a default signature algorithms
740 extension including all the algorithms we support. Parse new signature
741 format in client key exchange. Relax some ECC signing restrictions for
742 TLS v1.2 as indicated in RFC5246.
745 *) Add server support for TLS v1.2 signature algorithms extension. Switch
746 to new signature format when needed using client digest preference.
747 All server ciphersuites should now work correctly in TLS v1.2. No client
748 support yet and no support for client certificates.
751 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
752 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
753 ciphersuites. At present only RSA key exchange ciphersuites work with
754 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
755 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
756 and version checking.
759 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
760 with this defined it will not be affected by any changes to ssl internal
761 structures. Add several utility functions to allow openssl application
762 to work with OPENSSL_NO_SSL_INTERN defined.
766 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
768 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
771 *) Permit abbreviated handshakes when renegotiating using the function
772 SSL_renegotiate_abbreviated().
773 [Robin Seggelmann <seggelmann@fh-muenster.de>]
775 *) Add call to ENGINE_register_all_complete() to
776 ENGINE_load_builtin_engines(), so some implementations get used
777 automatically instead of needing explicit application support.
780 *) Add support for TLS key exporter as described in RFC5705.
781 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
783 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
784 a few changes are required:
786 Add SSL_OP_NO_TLSv1_1 flag.
788 Update version checking logic to handle version 1.1.
789 Add explicit IV handling (ported from DTLS code).
790 Add command line options to s_client/s_server.
793 Changes between 1.0.0g and 1.0.0h [12 Mar 2012]
795 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
796 in CMS and PKCS7 code. When RSA decryption fails use a random key for
797 content decryption and always return the same error. Note: this attack
798 needs on average 2^20 messages so it only affects automated senders. The
799 old behaviour can be reenabled in the CMS code by setting the
800 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
801 an MMA defence is not necessary.
802 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
803 this issue. (CVE-2012-0884)
806 *) Fix CVE-2011-4619: make sure we really are receiving a
807 client hello before rejecting multiple SGC restarts. Thanks to
808 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
811 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
813 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
814 Thanks to Antonio Martin, Enterprise Secure Access Research and
815 Development, Cisco Systems, Inc. for discovering this bug and
816 preparing a fix. (CVE-2012-0050)
819 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
821 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
822 of the Vaudenay padding oracle attack on CBC mode encryption
823 which enables an efficient plaintext recovery attack against
824 the OpenSSL implementation of DTLS. Their attack exploits timing
825 differences arising during decryption processing. A research
826 paper describing this attack can be found at:
827 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
828 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
829 Security Group at Royal Holloway, University of London
830 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
831 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
832 for preparing the fix. (CVE-2011-4108)
833 [Robin Seggelmann, Michael Tuexen]
835 *) Clear bytes used for block padding of SSL 3.0 records.
837 [Adam Langley (Google)]
839 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
840 Kadianakis <desnacked@gmail.com> for discovering this issue and
841 Adam Langley for preparing the fix. (CVE-2011-4619)
842 [Adam Langley (Google)]
844 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
845 [Andrey Kulikov <amdeich@gmail.com>]
847 *) Prevent malformed RFC3779 data triggering an assertion failure.
848 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
849 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
850 [Rob Austein <sra@hactrn.net>]
852 *) Improved PRNG seeding for VOS.
853 [Paul Green <Paul.Green@stratus.com>]
855 *) Fix ssl_ciph.c set-up race.
856 [Adam Langley (Google)]
858 *) Fix spurious failures in ecdsatest.c.
859 [Emilia Käsper (Google)]
861 *) Fix the BIO_f_buffer() implementation (which was mixing different
862 interpretations of the '..._len' fields).
863 [Adam Langley (Google)]
865 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
866 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
867 threads won't reuse the same blinding coefficients.
869 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
870 lock to call BN_BLINDING_invert_ex, and avoids one use of
871 BN_BLINDING_update for each BN_BLINDING structure (previously,
872 the last update always remained unused).
873 [Emilia Käsper (Google)]
875 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
876 [Bob Buckholz (Google)]
878 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
880 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
881 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
882 [Kaspar Brand <ossl@velox.ch>]
884 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
885 for multi-threaded use of ECDH. (CVE-2011-3210)
886 [Adam Langley (Google)]
888 *) Fix x509_name_ex_d2i memory leak on bad inputs.
891 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
892 signature public key algorithm by using OID xref utilities instead.
893 Before this you could only use some ECC ciphersuites with SHA1 only.
896 *) Add protection against ECDSA timing attacks as mentioned in the paper
897 by Billy Bob Brumley and Nicola Tuveri, see:
899 http://eprint.iacr.org/2011/232.pdf
901 [Billy Bob Brumley and Nicola Tuveri]
903 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
905 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
906 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
908 *) Fix bug in string printing code: if *any* escaping is enabled we must
909 escape the escape character (backslash) or the resulting string is
913 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
915 *) Disable code workaround for ancient and obsolete Netscape browsers
916 and servers: an attacker can use it in a ciphersuite downgrade attack.
917 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
920 *) Fixed J-PAKE implementation error, originally discovered by
921 Sebastien Martini, further info and confirmation from Stefan
922 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
925 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
927 *) Fix extension code to avoid race conditions which can result in a buffer
928 overrun vulnerability: resumed sessions must not be modified as they can
929 be shared by multiple threads. CVE-2010-3864
932 *) Fix WIN32 build system to correctly link an ENGINE directory into
936 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
938 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
940 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
942 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
944 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
945 context. The operation can be customised via the ctrl mechanism in
946 case ENGINEs want to include additional functionality.
949 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
952 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
953 output hashes compatible with older versions of OpenSSL.
954 [Willy Weisz <weisz@vcpc.univie.ac.at>]
956 *) Fix compression algorithm handling: if resuming a session use the
957 compression algorithm of the resumed session instead of determining
958 it from client hello again. Don't allow server to change algorithm.
961 *) Add load_crls() function to apps tidying load_certs() too. Add option
962 to verify utility to allow additional CRLs to be included.
965 *) Update OCSP request code to permit adding custom headers to the request:
966 some responders need this.
969 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
971 [Julia Lawall <julia@diku.dk>]
973 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
974 needlessly dereferenced structures, used obsolete functions and
975 didn't handle all updated verify codes correctly.
978 *) Disable MD2 in the default configuration.
981 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
982 indicate the initial BIO being pushed or popped. This makes it possible
983 to determine whether the BIO is the one explicitly called or as a result
984 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
985 it handles reference counts correctly and doesn't zero out the I/O bio
986 when it is not being explicitly popped. WARNING: applications which
987 included workarounds for the old buggy behaviour will need to be modified
988 or they could free up already freed BIOs.
991 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
992 renaming to all platforms (within the 0.9.8 branch, this was
993 done conditionally on Netware platforms to avoid a name clash).
994 [Guenter <lists@gknw.net>]
996 *) Add ECDHE and PSK support to DTLS.
997 [Michael Tuexen <tuexen@fh-muenster.de>]
999 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
1003 *) Add "missing" function EVP_MD_flags() (without this the only way to
1004 retrieve a digest flags is by accessing the structure directly. Update
1005 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
1006 or cipher is registered as in the "from" argument. Print out all
1007 registered digests in the dgst usage message instead of manually
1008 attempting to work them out.
1011 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
1012 this allows the use of compression and extensions. Change default cipher
1013 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
1014 by default unless an application cipher string requests it.
1017 *) Alter match criteria in PKCS12_parse(). It used to try to use local
1018 key ids to find matching certificates and keys but some PKCS#12 files
1019 don't follow the (somewhat unwritten) rules and this strategy fails.
1020 Now just gather all certificates together and the first private key
1021 then look for the first certificate that matches the key.
1024 *) Support use of registered digest and cipher names for dgst and cipher
1025 commands instead of having to add each one as a special case. So now
1032 openssl dgst -sha256 foo
1034 and this works for ENGINE based algorithms too.
1038 *) Update Gost ENGINE to support parameter files.
1039 [Victor B. Wagner <vitus@cryptocom.ru>]
1041 *) Support GeneralizedTime in ca utility.
1042 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
1044 *) Enhance the hash format used for certificate directory links. The new
1045 form uses the canonical encoding (meaning equivalent names will work
1046 even if they aren't identical) and uses SHA1 instead of MD5. This form
1047 is incompatible with the older format and as a result c_rehash should
1048 be used to rebuild symbolic links.
1051 *) Make PKCS#8 the default write format for private keys, replacing the
1052 traditional format. This form is standardised, more secure and doesn't
1053 include an implicit MD5 dependency.
1056 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
1057 committed to OpenSSL should pass this lot as a minimum.
1060 *) Add session ticket override functionality for use by EAP-FAST.
1061 [Jouni Malinen <j@w1.fi>]
1063 *) Modify HMAC functions to return a value. Since these can be implemented
1064 in an ENGINE errors can occur.
1067 *) Type-checked OBJ_bsearch_ex.
1070 *) Type-checked OBJ_bsearch. Also some constification necessitated
1071 by type-checking. Still to come: TXT_DB, bsearch(?),
1072 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
1076 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
1077 seconds to a tm structure directly, instead of going through OS
1078 specific date routines. This avoids any issues with OS routines such
1079 as the year 2038 bug. New *_adj() functions for ASN1 time structures
1080 and X509_time_adj_ex() to cover the extended range. The existing
1081 X509_time_adj() is still usable and will no longer have any date issues.
1084 *) Delta CRL support. New use deltas option which will attempt to locate
1085 and search any appropriate delta CRLs available.
1087 This work was sponsored by Google.
1090 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
1091 code and add additional score elements. Validate alternate CRL paths
1092 as part of the CRL checking and indicate a new error "CRL path validation
1093 error" in this case. Applications wanting additional details can use
1094 the verify callback and check the new "parent" field. If this is not
1095 NULL CRL path validation is taking place. Existing applications wont
1096 see this because it requires extended CRL support which is off by
1099 This work was sponsored by Google.
1102 *) Support for freshest CRL extension.
1104 This work was sponsored by Google.
1107 *) Initial indirect CRL support. Currently only supported in the CRLs
1108 passed directly and not via lookup. Process certificate issuer
1109 CRL entry extension and lookup CRL entries by bother issuer name
1110 and serial number. Check and process CRL issuer entry in IDP extension.
1112 This work was sponsored by Google.
1115 *) Add support for distinct certificate and CRL paths. The CRL issuer
1116 certificate is validated separately in this case. Only enabled if
1117 an extended CRL support flag is set: this flag will enable additional
1118 CRL functionality in future.
1120 This work was sponsored by Google.
1123 *) Add support for policy mappings extension.
1125 This work was sponsored by Google.
1128 *) Fixes to pathlength constraint, self issued certificate handling,
1129 policy processing to align with RFC3280 and PKITS tests.
1131 This work was sponsored by Google.
1134 *) Support for name constraints certificate extension. DN, email, DNS
1135 and URI types are currently supported.
1137 This work was sponsored by Google.
1140 *) To cater for systems that provide a pointer-based thread ID rather
1141 than numeric, deprecate the current numeric thread ID mechanism and
1142 replace it with a structure and associated callback type. This
1143 mechanism allows a numeric "hash" to be extracted from a thread ID in
1144 either case, and on platforms where pointers are larger than 'long',
1145 mixing is done to help ensure the numeric 'hash' is usable even if it
1146 can't be guaranteed unique. The default mechanism is to use "&errno"
1147 as a pointer-based thread ID to distinguish between threads.
1149 Applications that want to provide their own thread IDs should now use
1150 CRYPTO_THREADID_set_callback() to register a callback that will call
1151 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
1153 Note that ERR_remove_state() is now deprecated, because it is tied
1154 to the assumption that thread IDs are numeric. ERR_remove_state(0)
1155 to free the current thread's error state should be replaced by
1156 ERR_remove_thread_state(NULL).
1158 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
1159 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
1160 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
1161 application was previously providing a numeric thread callback that
1162 was inappropriate for distinguishing threads, then uniqueness might
1163 have been obtained with &errno that happened immediately in the
1164 intermediate development versions of OpenSSL; this is no longer the
1165 case, the numeric thread callback will now override the automatic use
1167 [Geoff Thorpe, with help from Bodo Moeller]
1169 *) Initial support for different CRL issuing certificates. This covers a
1170 simple case where the self issued certificates in the chain exist and
1171 the real CRL issuer is higher in the existing chain.
1173 This work was sponsored by Google.
1176 *) Removed effectively defunct crypto/store from the build.
1179 *) Revamp of STACK to provide stronger type-checking. Still to come:
1180 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
1181 ASN1_STRING, CONF_VALUE.
1184 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
1185 RAM on SSL connections. This option can save about 34k per idle SSL.
1188 *) Revamp of LHASH to provide stronger type-checking. Still to come:
1189 STACK, TXT_DB, bsearch, qsort.
1192 *) Initial support for Cryptographic Message Syntax (aka CMS) based
1193 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
1194 support for data, signedData, compressedData, digestedData and
1195 encryptedData, envelopedData types included. Scripts to check against
1196 RFC4134 examples draft and interop and consistency checks of many
1197 content types and variants.
1200 *) Add options to enc utility to support use of zlib compression BIO.
1203 *) Extend mk1mf to support importing of options and assembly language
1204 files from Configure script, currently only included in VC-WIN32.
1205 The assembly language rules can now optionally generate the source
1206 files from the associated perl scripts.
1209 *) Implement remaining functionality needed to support GOST ciphersuites.
1210 Interop testing has been performed using CryptoPro implementations.
1211 [Victor B. Wagner <vitus@cryptocom.ru>]
1213 *) s390x assembler pack.
1216 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
1220 *) Implement Opaque PRF Input TLS extension as specified in
1221 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
1222 official specification yet and no extension type assignment by
1223 IANA exists, this extension (for now) will have to be explicitly
1224 enabled when building OpenSSL by providing the extension number
1225 to use. For example, specify an option
1227 -DTLSEXT_TYPE_opaque_prf_input=0x9527
1229 to the "config" or "Configure" script to enable the extension,
1230 assuming extension number 0x9527 (which is a completely arbitrary
1231 and unofficial assignment based on the MD5 hash of the Internet
1232 Draft). Note that by doing so, you potentially lose
1233 interoperability with other TLS implementations since these might
1234 be using the same extension number for other purposes.
1236 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
1237 opaque PRF input value to use in the handshake. This will create
1238 an interal copy of the length-'len' string at 'src', and will
1239 return non-zero for success.
1241 To get more control and flexibility, provide a callback function
1244 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
1245 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
1249 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
1252 Callback function 'cb' will be called in handshakes, and is
1253 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
1254 Argument 'arg' is for application purposes (the value as given to
1255 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
1256 be provided to the callback function). The callback function
1257 has to return non-zero to report success: usually 1 to use opaque
1258 PRF input just if possible, or 2 to enforce use of the opaque PRF
1259 input. In the latter case, the library will abort the handshake
1260 if opaque PRF input is not successfully negotiated.
1262 Arguments 'peerinput' and 'len' given to the callback function
1263 will always be NULL and 0 in the case of a client. A server will
1264 see the client's opaque PRF input through these variables if
1265 available (NULL and 0 otherwise). Note that if the server
1266 provides an opaque PRF input, the length must be the same as the
1267 length of the client's opaque PRF input.
1269 Note that the callback function will only be called when creating
1270 a new session (session resumption can resume whatever was
1271 previously negotiated), and will not be called in SSL 2.0
1272 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
1273 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
1274 for applications that need to enforce opaque PRF input.
1278 *) Update ssl code to support digests other than SHA1+MD5 for handshake
1281 [Victor B. Wagner <vitus@cryptocom.ru>]
1283 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1284 RFC4507bis. The encrypted ticket format is an encrypted encoded
1285 SSL_SESSION structure, that way new session features are automatically
1288 If a client application caches session in an SSL_SESSION structure
1289 support is transparent because tickets are now stored in the encoded
1292 The SSL_CTX structure automatically generates keys for ticket
1293 protection in servers so again support should be possible
1294 with no application modification.
1296 If a client or server wishes to disable RFC4507 support then the option
1297 SSL_OP_NO_TICKET can be set.
1299 Add a TLS extension debugging callback to allow the contents of any client
1300 or server extensions to be examined.
1302 This work was sponsored by Google.
1305 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
1306 OpenSSL should now compile cleanly on gcc 4.2
1307 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
1309 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
1310 support including streaming MAC support: this is required for GOST
1311 ciphersuite support.
1312 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
1314 *) Add option -stream to use PKCS#7 streaming in smime utility. New
1315 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
1316 to output in BER and PEM format.
1319 *) Experimental support for use of HMAC via EVP_PKEY interface. This
1320 allows HMAC to be handled via the EVP_DigestSign*() interface. The
1321 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
1322 ENGINE support for HMAC keys which are unextractable. New -mac and
1323 -macopt options to dgst utility.
1326 *) New option -sigopt to dgst utility. Update dgst to use
1327 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
1328 alternative signing paramaters such as X9.31 or PSS in the dgst
1332 *) Change ssl_cipher_apply_rule(), the internal function that does
1333 the work each time a ciphersuite string requests enabling
1334 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
1335 removing ("!foo+bar") a class of ciphersuites: Now it maintains
1336 the order of disabled ciphersuites such that those ciphersuites
1337 that most recently went from enabled to disabled not only stay
1338 in order with respect to each other, but also have higher priority
1339 than other disabled ciphersuites the next time ciphersuites are
1342 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
1343 the same ciphersuites as with "HIGH" alone, but in a specific
1344 order where the PSK ciphersuites come first (since they are the
1345 most recently disabled ciphersuites when "HIGH" is parsed).
1347 Also, change ssl_create_cipher_list() (using this new
1348 funcionality) such that between otherwise identical
1349 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
1353 *) Change ssl_create_cipher_list() so that it automatically
1354 arranges the ciphersuites in reasonable order before starting
1355 to process the rule string. Thus, the definition for "DEFAULT"
1356 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
1357 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
1358 This makes it much easier to arrive at a reasonable default order
1359 in applications for which anonymous ciphers are OK (meaning
1360 that you can't actually use DEFAULT).
1361 [Bodo Moeller; suggested by Victor Duchovni]
1363 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
1364 processing) into multiple integers instead of setting
1365 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
1366 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
1367 (These masks as well as the individual bit definitions are hidden
1368 away into the non-exported interface ssl/ssl_locl.h, so this
1369 change to the definition of the SSL_CIPHER structure shouldn't
1370 affect applications.) This give us more bits for each of these
1371 categories, so there is no longer a need to coagulate AES128 and
1372 AES256 into a single algorithm bit, and to coagulate Camellia128
1373 and Camellia256 into a single algorithm bit, which has led to all
1376 Thus, among other things, the kludge introduced in 0.9.7m and
1377 0.9.8e for masking out AES256 independently of AES128 or masking
1378 out Camellia256 independently of AES256 is not needed here in 0.9.9.
1380 With the change, we also introduce new ciphersuite aliases that
1381 so far were missing: "AES128", "AES256", "CAMELLIA128", and
1385 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
1386 Use the leftmost N bytes of the signature input if the input is
1387 larger than the prime q (with N being the size in bytes of q).
1390 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
1391 it yet and it is largely untested.
1394 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
1397 *) Initial incomplete changes to avoid need for function casts in OpenSSL
1398 some compilers (gcc 4.2 and later) reject their use. Safestack is
1399 reimplemented. Update ASN1 to avoid use of legacy functions.
1402 *) Win32/64 targets are linked with Winsock2.
1405 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
1406 to external functions. This can be used to increase CRL handling
1407 efficiency especially when CRLs are very large by (for example) storing
1408 the CRL revoked certificates in a database.
1411 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
1412 new CRLs added to a directory can be used. New command line option
1413 -verify_return_error to s_client and s_server. This causes real errors
1414 to be returned by the verify callback instead of carrying on no matter
1415 what. This reflects the way a "real world" verify callback would behave.
1418 *) GOST engine, supporting several GOST algorithms and public key formats.
1419 Kindly donated by Cryptocom.
1422 *) Partial support for Issuing Distribution Point CRL extension. CRLs
1423 partitioned by DP are handled but no indirect CRL or reason partitioning
1424 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
1425 selected via a scoring technique which handles IDP and AKID in CRLs.
1428 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
1429 will ultimately be used for all verify operations: this will remove the
1430 X509_STORE dependency on certificate verification and allow alternative
1431 lookup methods. X509_STORE based implementations of these two callbacks.
1434 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
1435 Modify get_crl() to find a valid (unexpired) CRL if possible.
1438 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
1439 this would be called X509_CRL_cmp() but that name is already used by
1440 a function that just compares CRL issuer names. Cache several CRL
1441 extensions in X509_CRL structure and cache CRLDP in X509.
1444 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
1445 this maps equivalent X509_NAME structures into a consistent structure.
1446 Name comparison can then be performed rapidly using memcmp().
1449 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
1453 *) Allow digests to supply their own micalg string for S/MIME type using
1454 the ctrl EVP_MD_CTRL_MICALG.
1457 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
1458 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
1459 ctrl. It can then customise the structure before and/or after signing
1463 *) New function OBJ_add_sigid() to allow application defined signature OIDs
1464 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
1465 to free up any added signature OIDs.
1468 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
1469 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
1470 digest and cipher tables. New options added to openssl utility:
1471 list-message-digest-algorithms and list-cipher-algorithms.
1474 *) Change the array representation of binary polynomials: the list
1475 of degrees of non-zero coefficients is now terminated with -1.
1476 Previously it was terminated with 0, which was also part of the
1477 value; thus, the array representation was not applicable to
1478 polynomials where t^0 has coefficient zero. This change makes
1479 the array representation useful in a more general context.
1482 *) Various modifications and fixes to SSL/TLS cipher string
1483 handling. For ECC, the code now distinguishes between fixed ECDH
1484 with RSA certificates on the one hand and with ECDSA certificates
1485 on the other hand, since these are separate ciphersuites. The
1486 unused code for Fortezza ciphersuites has been removed.
1488 For consistency with EDH, ephemeral ECDH is now called "EECDH"
1489 (not "ECDHE"). For consistency with the code for DH
1490 certificates, use of ECDH certificates is now considered ECDH
1491 authentication, not RSA or ECDSA authentication (the latter is
1492 merely the CA's signing algorithm and not actively used in the
1495 The temporary ciphersuite alias "ECCdraft" is no longer
1496 available, and ECC ciphersuites are no longer excluded from "ALL"
1497 and "DEFAULT". The following aliases now exist for RFC 4492
1498 ciphersuites, most of these by analogy with the DH case:
1500 kECDHr - ECDH cert, signed with RSA
1501 kECDHe - ECDH cert, signed with ECDSA
1502 kECDH - ECDH cert (signed with either RSA or ECDSA)
1503 kEECDH - ephemeral ECDH
1504 ECDH - ECDH cert or ephemeral ECDH
1510 AECDH - anonymous ECDH
1511 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
1515 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
1516 Use correct micalg parameters depending on digest(s) in signed message.
1519 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
1520 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
1523 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
1524 an engine to register a method. Add ENGINE lookups for methods and
1525 functional reference processing.
1528 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
1529 EVP_{Sign,Verify}* which allow an application to customise the signature
1533 *) New -resign option to smime utility. This adds one or more signers
1534 to an existing PKCS#7 signedData structure. Also -md option to use an
1535 alternative message digest algorithm for signing.
1538 *) Tidy up PKCS#7 routines and add new functions to make it easier to
1539 create PKCS7 structures containing multiple signers. Update smime
1540 application to support multiple signers.
1543 *) New -macalg option to pkcs12 utility to allow setting of an alternative
1547 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
1548 Reorganize PBE internals to lookup from a static table using NIDs,
1549 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
1550 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
1551 PRF which will be automatically used with PBES2.
1554 *) Replace the algorithm specific calls to generate keys in "req" with the
1558 *) Update PKCS#7 enveloped data routines to use new API. This is now
1559 supported by any public key method supporting the encrypt operation. A
1560 ctrl is added to allow the public key algorithm to examine or modify
1561 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
1565 *) Add a ctrl to asn1 method to allow a public key algorithm to express
1566 a default digest type to use. In most cases this will be SHA1 but some
1567 algorithms (such as GOST) need to specify an alternative digest. The
1568 return value indicates how strong the prefernce is 1 means optional and
1569 2 is mandatory (that is it is the only supported type). Modify
1570 ASN1_item_sign() to accept a NULL digest argument to indicate it should
1571 use the default md. Update openssl utilities to use the default digest
1572 type for signing if it is not explicitly indicated.
1575 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
1576 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
1577 signing method from the key type. This effectively removes the link
1578 between digests and public key types.
1581 *) Add an OID cross reference table and utility functions. Its purpose is to
1582 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1583 rsaEncryption. This will allow some of the algorithm specific hackery
1584 needed to use the correct OID to be removed.
1587 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1588 structures for PKCS7_sign(). They are now set up by the relevant public
1592 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1595 *) Add support for key derivation (agreement) in the API, DH method and
1599 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1600 public and private key formats. As a side effect these add additional
1601 command line functionality not previously available: DSA signatures can be
1602 generated and verified using pkeyutl and DH key support and generation in
1607 [Oliver Tappe <zooey@hirschkaefer.de>]
1609 *) New make target "install_html_docs" installs HTML renditions of the
1611 [Oliver Tappe <zooey@hirschkaefer.de>]
1613 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1614 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1615 support key and parameter generation and add initial key generation
1616 functionality for RSA.
1619 *) Add functions for main EVP_PKEY_method operations. The undocumented
1620 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1621 EVP_PKEY_{encrypt,decrypt}_old.
1624 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1625 key API, doesn't do much yet.
1628 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1629 public key algorithms. New option to openssl utility:
1630 "list-public-key-algorithms" to print out info.
1633 *) Implement the Supported Elliptic Curves Extension for
1634 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1637 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1638 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1641 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1642 utilities such as rsa, dsa, dsaparam etc except they process any key
1646 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1647 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1648 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1652 *) Initial support for pluggable public key ASN1.
1653 De-spaghettify the public key ASN1 handling. Move public and private
1654 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1655 algorithm specific handling to a single module within the relevant
1656 algorithm directory. Add functions to allow (near) opaque processing
1657 of public and private key structures.
1660 *) Implement the Supported Point Formats Extension for
1661 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1664 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1665 for the psk identity [hint] and the psk callback functions to the
1666 SSL_SESSION, SSL and SSL_CTX structure.
1669 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1673 SSL_CTX_use_psk_identity_hint
1674 SSL_get_psk_identity_hint
1675 SSL_get_psk_identity
1676 SSL_use_psk_identity_hint
1678 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1680 *) Add RFC 3161 compliant time stamp request creation, response generation
1681 and response verification functionality.
1682 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1684 *) Add initial support for TLS extensions, specifically for the server_name
1685 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1686 have new members for a host name. The SSL data structure has an
1687 additional member SSL_CTX *initial_ctx so that new sessions can be
1688 stored in that context to allow for session resumption, even after the
1689 SSL has been switched to a new SSL_CTX in reaction to a client's
1690 server_name extension.
1692 New functions (subject to change):
1694 SSL_get_servername()
1695 SSL_get_servername_type()
1698 New CTRL codes and macros (subject to change):
1700 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1701 - SSL_CTX_set_tlsext_servername_callback()
1702 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1703 - SSL_CTX_set_tlsext_servername_arg()
1704 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1706 openssl s_client has a new '-servername ...' option.
1708 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1709 '-key2 ...', '-servername_fatal' (subject to change). This allows
1710 testing the HostName extension for a specific single host name ('-cert'
1711 and '-key' remain fallbacks for handshakes without HostName
1712 negotiation). If the unrecogninzed_name alert has to be sent, this by
1713 default is a warning; it becomes fatal with the '-servername_fatal'
1716 [Peter Sylvester, Remy Allais, Christophe Renou]
1718 *) Whirlpool hash implementation is added.
1721 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1722 bn(64,32). Because of instruction set limitations it doesn't have
1723 any negative impact on performance. This was done mostly in order
1724 to make it possible to share assembler modules, such as bn_mul_mont
1725 implementations, between 32- and 64-bit builds without hassle.
1728 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1729 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1733 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1734 dedicated Montgomery multiplication procedure, is introduced.
1735 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1736 "64-bit" performance on certain 32-bit targets.
1739 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1740 in SSL structures. New SSL ctrl to set maximum send fragment size.
1741 Save memory by seeting the I/O buffer sizes dynamically instead of
1742 using the maximum available value.
1745 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1746 in addition to the text details.
1749 *) Very, very preliminary EXPERIMENTAL support for printing of general
1750 ASN1 structures. This currently produces rather ugly output and doesn't
1751 handle several customised structures at all.
1754 *) Integrated support for PVK file format and some related formats such
1755 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1756 these in the 'rsa' and 'dsa' utilities.
1759 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1762 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1763 place for the (very old) "NETSCAPE" format certificates which are now
1764 handled using new ASN1 code equivalents.
1767 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1768 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1769 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1772 *) Modify CRL distribution points extension code to print out previously
1773 unsupported fields. Enhance extension setting code to allow setting of
1777 *) Add print and set support for Issuing Distribution Point CRL extension.
1780 *) Change 'Configure' script to enable Camellia by default.
1783 Changes between 0.9.8s and 0.9.8t [18 Jan 2012]
1785 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
1786 Thanks to Antonio Martin, Enterprise Secure Access Research and
1787 Development, Cisco Systems, Inc. for discovering this bug and
1788 preparing a fix. (CVE-2012-0050)
1791 Changes between 0.9.8r and 0.9.8s [4 Jan 2012]
1793 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
1794 of the Vaudenay padding oracle attack on CBC mode encryption
1795 which enables an efficient plaintext recovery attack against
1796 the OpenSSL implementation of DTLS. Their attack exploits timing
1797 differences arising during decryption processing. A research
1798 paper describing this attack can be found at:
1799 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
1800 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1801 Security Group at Royal Holloway, University of London
1802 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
1803 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
1804 for preparing the fix. (CVE-2011-4108)
1805 [Robin Seggelmann, Michael Tuexen]
1807 *) Stop policy check failure freeing same buffer twice. (CVE-2011-4109)
1808 [Ben Laurie, Kasper <ekasper@google.com>]
1810 *) Clear bytes used for block padding of SSL 3.0 records.
1812 [Adam Langley (Google)]
1814 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
1815 Kadianakis <desnacked@gmail.com> for discovering this issue and
1816 Adam Langley for preparing the fix. (CVE-2011-4619)
1817 [Adam Langley (Google)]
1819 *) Prevent malformed RFC3779 data triggering an assertion failure.
1820 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
1821 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
1822 [Rob Austein <sra@hactrn.net>]
1824 *) Fix ssl_ciph.c set-up race.
1825 [Adam Langley (Google)]
1827 *) Fix spurious failures in ecdsatest.c.
1828 [Emilia Käsper (Google)]
1830 *) Fix the BIO_f_buffer() implementation (which was mixing different
1831 interpretations of the '..._len' fields).
1832 [Adam Langley (Google)]
1834 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1835 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1836 threads won't reuse the same blinding coefficients.
1838 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1839 lock to call BN_BLINDING_invert_ex, and avoids one use of
1840 BN_BLINDING_update for each BN_BLINDING structure (previously,
1841 the last update always remained unused).
1842 [Emilia Käsper (Google)]
1844 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1845 for multi-threaded use of ECDH.
1846 [Adam Langley (Google)]
1848 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1851 *) Add protection against ECDSA timing attacks as mentioned in the paper
1852 by Billy Bob Brumley and Nicola Tuveri, see:
1854 http://eprint.iacr.org/2011/232.pdf
1856 [Billy Bob Brumley and Nicola Tuveri]
1858 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1860 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1861 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1863 *) Fix bug in string printing code: if *any* escaping is enabled we must
1864 escape the escape character (backslash) or the resulting string is
1868 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1870 *) Disable code workaround for ancient and obsolete Netscape browsers
1871 and servers: an attacker can use it in a ciphersuite downgrade attack.
1872 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1875 *) Fixed J-PAKE implementation error, originally discovered by
1876 Sebastien Martini, further info and confirmation from Stefan
1877 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1880 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1882 *) Fix extension code to avoid race conditions which can result in a buffer
1883 overrun vulnerability: resumed sessions must not be modified as they can
1884 be shared by multiple threads. CVE-2010-3864
1887 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1890 *) Don't reencode certificate when calculating signature: cache and use
1891 the original encoding instead. This makes signature verification of
1892 some broken encodings work correctly.
1895 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1896 is also one of the inputs.
1897 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1899 *) Don't repeatedly append PBE algorithms to table if they already exist.
1900 Sort table on each new add. This effectively makes the table read only
1901 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1905 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1907 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1910 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1911 access or freeing data twice (CVE-2010-0742)
1912 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1914 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1915 common in certificates and some applications which only call
1916 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1920 Reduce copying into .apps and .test in makevms.com
1921 Don't try to use blank CA certificate in CA.com
1922 Allow use of C files from original directories in maketests.com
1923 [Steven M. Schweda" <sms@antinode.info>]
1925 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1927 *) When rejecting SSL/TLS records due to an incorrect version number, never
1928 update s->server with a new major version number. As of
1929 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1930 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1931 the previous behavior could result in a read attempt at NULL when
1932 receiving specific incorrect SSL/TLS records once record payload
1933 protection is active. (CVE-2010-0740)
1934 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1936 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1937 could be crashed if the relevant tables were not present (e.g. chrooted).
1938 [Tomas Hoger <thoger@redhat.com>]
1940 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1942 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1943 [Martin Olsson, Neel Mehta]
1945 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1946 accommodate for stack sorting, always a write lock!).
1949 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1950 excessive delays in the RAND_poll(): over a minute. As a workaround
1951 include a time check in the inner Heap32Next loop too.
1954 *) The code that handled flushing of data in SSL/TLS originally used the
1955 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1956 the problem outlined in PR#1949. The fix suggested there however can
1957 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1958 of Apache). So instead simplify the code to flush unconditionally.
1959 This should be fine since flushing with no data to flush is a no op.
1962 *) Handle TLS versions 2.0 and later properly and correctly use the
1963 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1964 off ancient servers have a habit of sticking around for a while...
1967 *) Modify compression code so it frees up structures without using the
1968 ex_data callbacks. This works around a problem where some applications
1969 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1970 restarting) then use compression (e.g. SSL with compression) later.
1971 This results in significant per-connection memory leaks and
1972 has caused some security issues including CVE-2008-1678 and
1976 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1977 change when encrypting or decrypting.
1980 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1981 connect and renegotiate with servers which do not support RI.
1982 Until RI is more widely deployed this option is enabled by default.
1985 *) Add "missing" ssl ctrls to clear options and mode.
1988 *) If client attempts to renegotiate and doesn't support RI respond with
1989 a no_renegotiation alert as required by RFC5746. Some renegotiating
1990 TLS clients will continue a connection gracefully when they receive
1991 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1992 waiting for a server hello which it will never receive. Now we treat a
1993 received no_renegotiation alert as a fatal error. This is because
1994 applications requesting a renegotiation might well expect it to succeed
1995 and would have no code in place to handle the server denying it so the
1996 only safe thing to do is to terminate the connection.
1999 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
2000 peer supports secure renegotiation and 0 otherwise. Print out peer
2001 renegotiation support in s_client/s_server.
2004 *) Replace the highly broken and deprecated SPKAC certification method with
2005 the updated NID creation version. This should correctly handle UTF8.
2008 *) Implement RFC5746. Re-enable renegotiation but require the extension
2009 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
2010 turns out to be a bad idea. It has been replaced by
2011 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
2012 SSL_CTX_set_options(). This is really not recommended unless you
2013 know what you are doing.
2014 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
2016 *) Fixes to stateless session resumption handling. Use initial_ctx when
2017 issuing and attempting to decrypt tickets in case it has changed during
2018 servername handling. Use a non-zero length session ID when attempting
2019 stateless session resumption: this makes it possible to determine if
2020 a resumption has occurred immediately after receiving server hello
2021 (several places in OpenSSL subtly assume this) instead of later in
2025 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
2026 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
2027 fixes for a few places where the return code is not checked
2029 [Julia Lawall <julia@diku.dk>]
2031 *) Add --strict-warnings option to Configure script to include devteam
2032 warnings in other configurations.
2035 *) Add support for --libdir option and LIBDIR variable in makefiles. This
2036 makes it possible to install openssl libraries in locations which
2037 have names other than "lib", for example "/usr/lib64" which some
2039 [Steve Henson, based on patch from Jeremy Utley]
2041 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
2042 X690 8.9.12 and can produce some misleading textual output of OIDs.
2043 [Steve Henson, reported by Dan Kaminsky]
2045 *) Delete MD2 from algorithm tables. This follows the recommendation in
2046 several standards that it is not used in new applications due to
2047 several cryptographic weaknesses. For binary compatibility reasons
2048 the MD2 API is still compiled in by default.
2051 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
2055 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
2056 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
2058 [Guenter <lists@gknw.net>]
2060 *) Fix the server certificate chain building code to use X509_verify_cert(),
2061 it used to have an ad-hoc builder which was unable to cope with anything
2062 other than a simple chain.
2063 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
2065 *) Don't check self signed certificate signatures in X509_verify_cert()
2066 by default (a flag can override this): it just wastes time without
2067 adding any security. As a useful side effect self signed root CAs
2068 with non-FIPS digests are now usable in FIPS mode.
2071 *) In dtls1_process_out_of_seq_message() the check if the current message
2072 is already buffered was missing. For every new message was memory
2073 allocated, allowing an attacker to perform an denial of service attack
2074 with sending out of seq handshake messages until there is no memory
2075 left. Additionally every future messege was buffered, even if the
2076 sequence number made no sense and would be part of another handshake.
2077 So only messages with sequence numbers less than 10 in advance will be
2078 buffered. (CVE-2009-1378)
2079 [Robin Seggelmann, discovered by Daniel Mentz]
2081 *) Records are buffered if they arrive with a future epoch to be
2082 processed after finishing the corresponding handshake. There is
2083 currently no limitation to this buffer allowing an attacker to perform
2084 a DOS attack with sending records with future epochs until there is no
2085 memory left. This patch adds the pqueue_size() function to detemine
2086 the size of a buffer and limits the record buffer to 100 entries.
2088 [Robin Seggelmann, discovered by Daniel Mentz]
2090 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
2091 parent structure is freed. (CVE-2009-1379)
2094 *) Handle non-blocking I/O properly in SSL_shutdown() call.
2095 [Darryl Miles <darryl-mailinglists@netbauds.net>]
2098 [Ilya O. <vrghost@gmail.com>]
2100 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
2102 *) Disable renegotiation completely - this fixes a severe security
2103 problem (CVE-2009-3555) at the cost of breaking all
2104 renegotiation. Renegotiation can be re-enabled by setting
2105 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
2106 run-time. This is really not recommended unless you know what
2110 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
2112 *) Don't set val to NULL when freeing up structures, it is freed up by
2113 underlying code. If sizeof(void *) > sizeof(long) this can result in
2114 zeroing past the valid field. (CVE-2009-0789)
2115 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
2117 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
2118 checked correctly. This would allow some invalid signed attributes to
2119 appear to verify correctly. (CVE-2009-0591)
2120 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2122 *) Reject UniversalString and BMPString types with invalid lengths. This
2123 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
2124 a legal length. (CVE-2009-0590)
2127 *) Set S/MIME signing as the default purpose rather than setting it
2128 unconditionally. This allows applications to override it at the store
2132 *) Permit restricted recursion of ASN1 strings. This is needed in practice
2133 to handle some structures.
2136 *) Improve efficiency of mem_gets: don't search whole buffer each time
2138 [Jeremy Shapiro <jnshapir@us.ibm.com>]
2140 *) New -hex option for openssl rand.
2143 *) Print out UTF8String and NumericString when parsing ASN1.
2146 *) Support NumericString type for name components.
2149 *) Allow CC in the environment to override the automatically chosen
2150 compiler. Note that nothing is done to ensure flags work with the
2154 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
2156 *) Properly check EVP_VerifyFinal() and similar return values
2158 [Ben Laurie, Bodo Moeller, Google Security Team]
2160 *) Enable TLS extensions by default.
2163 *) Allow the CHIL engine to be loaded, whether the application is
2164 multithreaded or not. (This does not release the developer from the
2165 obligation to set up the dynamic locking callbacks.)
2166 [Sander Temme <sander@temme.net>]
2168 *) Use correct exit code if there is an error in dgst command.
2169 [Steve Henson; problem pointed out by Roland Dirlewanger]
2171 *) Tweak Configure so that you need to say "experimental-jpake" to enable
2172 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
2175 *) Add experimental JPAKE support, including demo authentication in
2176 s_client and s_server.
2179 *) Set the comparison function in v3_addr_canonize().
2180 [Rob Austein <sra@hactrn.net>]
2182 *) Add support for XMPP STARTTLS in s_client.
2183 [Philip Paeps <philip@freebsd.org>]
2185 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
2186 to ensure that even with this option, only ciphersuites in the
2187 server's preference list will be accepted. (Note that the option
2188 applies only when resuming a session, so the earlier behavior was
2189 just about the algorithm choice for symmetric cryptography.)
2192 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
2194 *) Fix NULL pointer dereference if a DTLS server received
2195 ChangeCipherSpec as first record (CVE-2009-1386).
2198 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
2199 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
2202 *) The fix in 0.9.8c that supposedly got rid of unsafe
2203 double-checked locking was incomplete for RSA blinding,
2204 addressing just one layer of what turns out to have been
2205 doubly unsafe triple-checked locking.
2207 So now fix this for real by retiring the MONT_HELPER macro
2208 in crypto/rsa/rsa_eay.c.
2210 [Bodo Moeller; problem pointed out by Marius Schilder]
2212 *) Various precautionary measures:
2214 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
2216 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
2217 (NB: This would require knowledge of the secret session ticket key
2218 to exploit, in which case you'd be SOL either way.)
2220 - Change bn_nist.c so that it will properly handle input BIGNUMs
2221 outside the expected range.
2223 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
2226 [Neel Mehta, Bodo Moeller]
2228 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
2229 the load fails. Useful for distros.
2230 [Ben Laurie and the FreeBSD team]
2232 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
2235 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
2238 *) Expand ENGINE to support engine supplied SSL client certificate functions.
2240 This work was sponsored by Logica.
2243 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
2244 keystores. Support for SSL/TLS client authentication too.
2245 Not compiled unless enable-capieng specified to Configure.
2247 This work was sponsored by Logica.
2250 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
2251 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
2252 attribute creation routines such as certifcate requests and PKCS#12
2256 Changes between 0.9.8g and 0.9.8h [28 May 2008]
2258 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
2259 handshake which could lead to a cilent crash as found using the
2260 Codenomicon TLS test suite (CVE-2008-1672)
2261 [Steve Henson, Mark Cox]
2263 *) Fix double free in TLS server name extensions which could lead to
2264 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
2267 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
2269 Clear the error queue to ensure that error entries left from
2270 older function calls do not interfere with the correct operation.
2271 [Lutz Jaenicke, Erik de Castro Lopo]
2273 *) Remove root CA certificates of commercial CAs:
2275 The OpenSSL project does not recommend any specific CA and does not
2276 have any policy with respect to including or excluding any CA.
2277 Therefore it does not make any sense to ship an arbitrary selection
2278 of root CA certificates with the OpenSSL software.
2281 *) RSA OAEP patches to fix two separate invalid memory reads.
2282 The first one involves inputs when 'lzero' is greater than
2283 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
2284 before the beginning of from). The second one involves inputs where
2285 the 'db' section contains nothing but zeroes (there is a one-byte
2286 invalid read after the end of 'db').
2287 [Ivan Nestlerode <inestlerode@us.ibm.com>]
2289 *) Partial backport from 0.9.9-dev:
2291 Introduce bn_mul_mont (dedicated Montgomery multiplication
2292 procedure) as a candidate for BIGNUM assembler implementation.
2293 While 0.9.9-dev uses assembler for various architectures, only
2294 x86_64 is available by default here in the 0.9.8 branch, and
2295 32-bit x86 is available through a compile-time setting.
2297 To try the 32-bit x86 assembler implementation, use Configure
2298 option "enable-montasm" (which exists only for this backport).
2300 As "enable-montasm" for 32-bit x86 disclaims code stability
2301 anyway, in this constellation we activate additional code
2302 backported from 0.9.9-dev for further performance improvements,
2303 namely BN_from_montgomery_word. (To enable this otherwise,
2304 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
2306 [Andy Polyakov (backport partially by Bodo Moeller)]
2308 *) Add TLS session ticket callback. This allows an application to set
2309 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
2310 values. This is useful for key rollover for example where several key
2311 sets may exist with different names.
2314 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
2315 This was broken until now in 0.9.8 releases, such that the only way
2316 a registered ENGINE could be used (assuming it initialises
2317 successfully on the host) was to explicitly set it as the default
2318 for the relevant algorithms. This is in contradiction with 0.9.7
2319 behaviour and the documentation. With this fix, when an ENGINE is
2320 registered into a given algorithm's table of implementations, the
2321 'uptodate' flag is reset so that auto-discovery will be used next
2322 time a new context for that algorithm attempts to select an
2324 [Ian Lister (tweaked by Geoff Thorpe)]
2326 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
2327 implemention in the following ways:
2329 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
2332 Lack of BER streaming support means one pass streaming processing is
2333 only supported if data is detached: setting the streaming flag is
2334 ignored for embedded content.
2336 CMS support is disabled by default and must be explicitly enabled
2337 with the enable-cms configuration option.
2340 *) Update the GMP engine glue to do direct copies between BIGNUM and
2341 mpz_t when openssl and GMP use the same limb size. Otherwise the
2342 existing "conversion via a text string export" trick is still used.
2343 [Paul Sheer <paulsheer@gmail.com>]
2345 *) Zlib compression BIO. This is a filter BIO which compressed and
2346 uncompresses any data passed through it.
2349 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
2350 RFC3394 compatible AES key wrapping.
2353 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
2354 sets string data without copying. X509_ALGOR_set0() and
2355 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
2356 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
2357 from an X509_ATTRIBUTE structure optionally checking it occurs only
2358 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
2362 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
2363 to get the expected BN_FLG_CONSTTIME behavior.
2364 [Bodo Moeller (Google)]
2368 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
2369 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
2370 - added some more tests to do_tests.pl
2371 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
2372 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
2373 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
2374 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
2375 - various changes to netware.pl to enable gcc-cross builds on Win32
2377 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
2378 - various changes to fix missing prototype warnings
2379 - fixed x86nasm.pl to create correct asm files for NASM COFF output
2380 - added AES, WHIRLPOOL and CPUID assembler code to build files
2381 - added missing AES assembler make rules to mk1mf.pl
2382 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
2383 [Guenter Knauf <eflash@gmx.net>]
2385 *) Implement certificate status request TLS extension defined in RFC3546.
2386 A client can set the appropriate parameters and receive the encoded
2387 OCSP response via a callback. A server can query the supplied parameters
2388 and set the encoded OCSP response in the callback. Add simplified examples
2389 to s_client and s_server.
2392 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
2394 *) Fix various bugs:
2395 + Binary incompatibility of ssl_ctx_st structure
2396 + DTLS interoperation with non-compliant servers
2397 + Don't call get_session_cb() without proposed session
2398 + Fix ia64 assembler code
2399 [Andy Polyakov, Steve Henson]
2401 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
2403 *) DTLS Handshake overhaul. There were longstanding issues with
2404 OpenSSL DTLS implementation, which were making it impossible for
2405 RFC 4347 compliant client to communicate with OpenSSL server.
2406 Unfortunately just fixing these incompatibilities would "cut off"
2407 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
2408 server keeps tolerating non RFC compliant syntax. The opposite is
2409 not true, 0.9.8f client can not communicate with earlier server.
2410 This update even addresses CVE-2007-4995.
2413 *) Changes to avoid need for function casts in OpenSSL: some compilers
2414 (gcc 4.2 and later) reject their use.
2415 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
2418 *) Add RFC4507 support to OpenSSL. This includes the corrections in
2419 RFC4507bis. The encrypted ticket format is an encrypted encoded
2420 SSL_SESSION structure, that way new session features are automatically
2423 If a client application caches session in an SSL_SESSION structure
2424 support is transparent because tickets are now stored in the encoded
2427 The SSL_CTX structure automatically generates keys for ticket
2428 protection in servers so again support should be possible
2429 with no application modification.
2431 If a client or server wishes to disable RFC4507 support then the option
2432 SSL_OP_NO_TICKET can be set.
2434 Add a TLS extension debugging callback to allow the contents of any client
2435 or server extensions to be examined.
2437 This work was sponsored by Google.
2440 *) Add initial support for TLS extensions, specifically for the server_name
2441 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
2442 have new members for a host name. The SSL data structure has an
2443 additional member SSL_CTX *initial_ctx so that new sessions can be
2444 stored in that context to allow for session resumption, even after the
2445 SSL has been switched to a new SSL_CTX in reaction to a client's
2446 server_name extension.
2448 New functions (subject to change):
2450 SSL_get_servername()
2451 SSL_get_servername_type()
2454 New CTRL codes and macros (subject to change):
2456 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2457 - SSL_CTX_set_tlsext_servername_callback()
2458 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
2459 - SSL_CTX_set_tlsext_servername_arg()
2460 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
2462 openssl s_client has a new '-servername ...' option.
2464 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2465 '-key2 ...', '-servername_fatal' (subject to change). This allows
2466 testing the HostName extension for a specific single host name ('-cert'
2467 and '-key' remain fallbacks for handshakes without HostName
2468 negotiation). If the unrecogninzed_name alert has to be sent, this by
2469 default is a warning; it becomes fatal with the '-servername_fatal'
2472 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
2474 *) Add AES and SSE2 assembly language support to VC++ build.
2477 *) Mitigate attack on final subtraction in Montgomery reduction.
2480 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
2481 (which previously caused an internal error).
2484 *) Squeeze another 10% out of IGE mode when in != out.
2487 *) AES IGE mode speedup.
2488 [Dean Gaudet (Google)]
2490 *) Add the Korean symmetric 128-bit cipher SEED (see
2491 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
2492 add SEED ciphersuites from RFC 4162:
2494 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
2495 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
2496 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
2497 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
2499 To minimize changes between patchlevels in the OpenSSL 0.9.8
2500 series, SEED remains excluded from compilation unless OpenSSL
2501 is configured with 'enable-seed'.
2502 [KISA, Bodo Moeller]
2504 *) Mitigate branch prediction attacks, which can be practical if a
2505 single processor is shared, allowing a spy process to extract
2506 information. For detailed background information, see
2507 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
2508 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
2509 and Necessary Software Countermeasures"). The core of the change
2510 are new versions BN_div_no_branch() and
2511 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
2512 respectively, which are slower, but avoid the security-relevant
2513 conditional branches. These are automatically called by BN_div()
2514 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
2515 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
2516 remove a conditional branch.
2518 BN_FLG_CONSTTIME is the new name for the previous
2519 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
2520 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
2521 in the exponent causes BN_mod_exp_mont() to use the alternative
2522 implementation in BN_mod_exp_mont_consttime().) The old name
2523 remains as a deprecated alias.
2525 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
2526 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
2527 constant-time implementations for more than just exponentiation.
2528 Here too the old name is kept as a deprecated alias.
2530 BN_BLINDING_new() will now use BN_dup() for the modulus so that
2531 the BN_BLINDING structure gets an independent copy of the
2532 modulus. This means that the previous "BIGNUM *m" argument to
2533 BN_BLINDING_new() and to BN_BLINDING_create_param() now
2534 essentially becomes "const BIGNUM *m", although we can't actually
2535 change this in the header file before 0.9.9. It allows
2536 RSA_setup_blinding() to use BN_with_flags() on the modulus to
2537 enable BN_FLG_CONSTTIME.
2539 [Matthew D Wood (Intel Corp)]
2541 *) In the SSL/TLS server implementation, be strict about session ID
2542 context matching (which matters if an application uses a single
2543 external cache for different purposes). Previously,
2544 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2545 set. This did ensure strict client verification, but meant that,
2546 with applications using a single external cache for quite
2547 different requirements, clients could circumvent ciphersuite
2548 restrictions for a given session ID context by starting a session
2549 in a different context.
2552 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2553 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2554 authentication-only ciphersuites.
2557 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
2558 not complete and could lead to a possible single byte overflow
2559 (CVE-2007-5135) [Ben Laurie]
2561 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
2563 *) Since AES128 and AES256 (and similarly Camellia128 and
2564 Camellia256) share a single mask bit in the logic of
2565 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2566 kludge to work properly if AES128 is available and AES256 isn't
2567 (or if Camellia128 is available and Camellia256 isn't).
2570 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
2571 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
2572 When a point or a seed is encoded in a BIT STRING, we need to
2573 prevent the removal of trailing zero bits to get the proper DER
2574 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
2575 of a NamedBitList, for which trailing 0 bits need to be removed.)
2578 *) Have SSL/TLS server implementation tolerate "mismatched" record
2579 protocol version while receiving ClientHello even if the
2580 ClientHello is fragmented. (The server can't insist on the
2581 particular protocol version it has chosen before the ServerHello
2582 message has informed the client about his choice.)
2585 *) Add RFC 3779 support.
2586 [Rob Austein for ARIN, Ben Laurie]
2588 *) Load error codes if they are not already present instead of using a
2589 static variable. This allows them to be cleanly unloaded and reloaded.
2590 Improve header file function name parsing.
2593 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
2594 or CAPABILITY handshake as required by RFCs.
2597 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
2599 *) Introduce limits to prevent malicious keys being able to
2600 cause a denial of service. (CVE-2006-2940)
2601 [Steve Henson, Bodo Moeller]
2603 *) Fix ASN.1 parsing of certain invalid structures that can result
2604 in a denial of service. (CVE-2006-2937) [Steve Henson]
2606 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2607 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2609 *) Fix SSL client code which could crash if connecting to a
2610 malicious SSLv2 server. (CVE-2006-4343)
2611 [Tavis Ormandy and Will Drewry, Google Security Team]
2613 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
2614 match only those. Before that, "AES256-SHA" would be interpreted
2615 as a pattern and match "AES128-SHA" too (since AES128-SHA got
2616 the same strength classification in 0.9.7h) as we currently only
2617 have a single AES bit in the ciphersuite description bitmap.
2618 That change, however, also applied to ciphersuite strings such as
2619 "RC4-MD5" that intentionally matched multiple ciphersuites --
2620 namely, SSL 2.0 ciphersuites in addition to the more common ones
2621 from SSL 3.0/TLS 1.0.
2623 So we change the selection algorithm again: Naming an explicit
2624 ciphersuite selects this one ciphersuite, and any other similar
2625 ciphersuite (same bitmap) from *other* protocol versions.
2626 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2627 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
2629 Since SSL 2.0 does not have any ciphersuites for which the
2630 128/256 bit distinction would be relevant, this works for now.
2631 The proper fix will be to use different bits for AES128 and
2632 AES256, which would have avoided the problems from the beginning;
2633 however, bits are scarce, so we can only do this in a new release
2634 (not just a patchlevel) when we can change the SSL_CIPHER
2635 definition to split the single 'unsigned long mask' bitmap into
2636 multiple values to extend the available space.
2640 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2642 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2643 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2645 *) Add AES IGE and biIGE modes.
2648 *) Change the Unix randomness entropy gathering to use poll() when
2649 possible instead of select(), since the latter has some
2650 undesirable limitations.
2651 [Darryl Miles via Richard Levitte and Bodo Moeller]
2653 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2654 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2655 cannot be implicitly activated as part of, e.g., the "AES" alias.
2656 However, please upgrade to OpenSSL 0.9.9[-dev] for
2657 non-experimental use of the ECC ciphersuites to get TLS extension
2658 support, which is required for curve and point format negotiation
2659 to avoid potential handshake problems.
2662 *) Disable rogue ciphersuites:
2664 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2665 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2666 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2668 The latter two were purportedly from
2669 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2672 Also deactivate the remaining ciphersuites from
2673 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2674 unofficial, and the ID has long expired.
2677 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2678 dual-core machines) and other potential thread-safety issues.
2681 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2682 versions), which is now available for royalty-free use
2683 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2684 Also, add Camellia TLS ciphersuites from RFC 4132.
2686 To minimize changes between patchlevels in the OpenSSL 0.9.8
2687 series, Camellia remains excluded from compilation unless OpenSSL
2688 is configured with 'enable-camellia'.
2691 *) Disable the padding bug check when compression is in use. The padding
2692 bug check assumes the first packet is of even length, this is not
2693 necessarily true if compresssion is enabled and can result in false
2694 positives causing handshake failure. The actual bug test is ancient
2695 code so it is hoped that implementations will either have fixed it by
2696 now or any which still have the bug do not support compression.
2699 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2701 *) When applying a cipher rule check to see if string match is an explicit
2702 cipher suite and only match that one cipher suite if it is.
2705 *) Link in manifests for VC++ if needed.
2706 [Austin Ziegler <halostatue@gmail.com>]
2708 *) Update support for ECC-based TLS ciphersuites according to
2709 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2710 TLS extensions, which are supported starting with the 0.9.9
2711 branch, not in the OpenSSL 0.9.8 branch).
2714 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2715 opaque EVP_CIPHER_CTX handling.
2718 *) Fixes and enhancements to zlib compression code. We now only use
2719 "zlib1.dll" and use the default __cdecl calling convention on Win32
2720 to conform with the standards mentioned here:
2721 http://www.zlib.net/DLL_FAQ.txt
2722 Static zlib linking now works on Windows and the new --with-zlib-include
2723 --with-zlib-lib options to Configure can be used to supply the location
2724 of the headers and library. Gracefully handle case where zlib library
2728 *) Several fixes and enhancements to the OID generation code. The old code
2729 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2730 handle numbers larger than ULONG_MAX, truncated printing and had a
2731 non standard OBJ_obj2txt() behaviour.
2734 *) Add support for building of engines under engine/ as shared libraries
2735 under VC++ build system.
2738 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2739 Hopefully, we will not see any false combination of paths any more.
2742 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2744 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2745 (part of SSL_OP_ALL). This option used to disable the
2746 countermeasure against man-in-the-middle protocol-version
2747 rollback in the SSL 2.0 server implementation, which is a bad
2748 idea. (CVE-2005-2969)
2750 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2751 for Information Security, National Institute of Advanced Industrial
2752 Science and Technology [AIST], Japan)]
2754 *) Add two function to clear and return the verify parameter flags.
2757 *) Keep cipherlists sorted in the source instead of sorting them at
2758 runtime, thus removing the need for a lock.
2761 *) Avoid some small subgroup attacks in Diffie-Hellman.
2762 [Nick Mathewson and Ben Laurie]
2764 *) Add functions for well-known primes.
2767 *) Extended Windows CE support.
2768 [Satoshi Nakamura and Andy Polyakov]
2770 *) Initialize SSL_METHOD structures at compile time instead of during
2771 runtime, thus removing the need for a lock.
2774 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2775 attempting to decrypt each encrypted key in turn. Add support to
2779 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2781 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2784 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2787 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2788 key into the same file any more.
2791 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2794 *) Add -utf8 command line and config file option to 'ca'.
2795 [Stefan <stf@udoma.org]
2797 *) Removed the macro des_crypt(), as it seems to conflict with some
2798 libraries. Use DES_crypt().
2801 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2802 involves renaming the source and generated shared-libs for
2803 both. The engines will accept the corrected or legacy ids
2804 ('ncipher' and '4758_cca' respectively) when binding. NB,
2805 this only applies when building 'shared'.
2806 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2808 *) Add attribute functions to EVP_PKEY structure. Modify
2809 PKCS12_create() to recognize a CSP name attribute and
2810 use it. Make -CSP option work again in pkcs12 utility.
2813 *) Add new functionality to the bn blinding code:
2814 - automatic re-creation of the BN_BLINDING parameters after
2815 a fixed number of uses (currently 32)
2816 - add new function for parameter creation
2817 - introduce flags to control the update behaviour of the
2818 BN_BLINDING parameters
2819 - hide BN_BLINDING structure
2820 Add a second BN_BLINDING slot to the RSA structure to improve
2821 performance when a single RSA object is shared among several
2825 *) Add support for DTLS.
2826 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2828 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2829 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2832 *) Remove buggy and incompletet DH cert support from
2833 ssl/ssl_rsa.c and ssl/s3_both.c
2836 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2837 the apps/openssl applications.
2840 *) Compile clean with "-Wall -Wmissing-prototypes
2841 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2842 DEBUG_SAFESTACK must also be set.
2845 *) Change ./Configure so that certain algorithms can be disabled by default.
2846 The new counterpiece to "no-xxx" is "enable-xxx".
2848 The patented RC5 and MDC2 algorithms will now be disabled unless
2849 "enable-rc5" and "enable-mdc2", respectively, are specified.
2851 (IDEA remains enabled despite being patented. This is because IDEA
2852 is frequently required for interoperability, and there is no license
2853 fee for non-commercial use. As before, "no-idea" can be used to
2854 avoid this algorithm.)
2858 *) Add processing of proxy certificates (see RFC 3820). This work was
2859 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2860 EGEE (Enabling Grids for E-science in Europe).
2863 *) RC4 performance overhaul on modern architectures/implementations, such
2864 as Intel P4, IA-64 and AMD64.
2867 *) New utility extract-section.pl. This can be used specify an alternative
2868 section number in a pod file instead of having to treat each file as
2869 a separate case in Makefile. This can be done by adding two lines to the
2872 =for comment openssl_section:XXX
2874 The blank line is mandatory.
2878 *) New arguments -certform, -keyform and -pass for s_client and s_server
2879 to allow alternative format key and certificate files and passphrase
2883 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2884 update associated structures and add various utility functions.
2886 Add new policy related verify parameters, include policy checking in
2887 standard verify code. Enhance 'smime' application with extra parameters
2888 to support policy checking and print out.
2891 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2892 Nehemiah processors. These extensions support AES encryption in hardware
2893 as well as RNG (though RNG support is currently disabled).
2894 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2896 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2899 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2900 [Andy Polyakov and a number of other people]
2902 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2903 implementation contributed by IBM.
2904 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2906 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2907 exponent rather than 'unsigned long'. There is a corresponding change to
2908 the new 'rsa_keygen' element of the RSA_METHOD structure.
2909 [Jelte Jansen, Geoff Thorpe]
2911 *) Functionality for creating the initial serial number file is now
2912 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2914 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2915 number file to 1, which is bound to cause problems. To avoid
2916 the problems while respecting compatibility between different 0.9.7
2917 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2918 CA.pl for serial number initialization. With the new release 0.9.8,
2919 we can fix the problem directly in the 'ca' utility.)
2922 *) Reduced header interdepencies by declaring more opaque objects in
2923 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2924 give fewer recursive includes, which could break lazy source code - so
2925 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2926 developers should define this symbol when building and using openssl to
2927 ensure they track the recommended behaviour, interfaces, [etc], but
2928 backwards-compatible behaviour prevails when this isn't defined.
2931 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2934 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2935 This will generate a random key of the appropriate length based on the
2936 cipher context. The EVP_CIPHER can provide its own random key generation
2937 routine to support keys of a specific form. This is used in the des and
2938 3des routines to generate a key of the correct parity. Update S/MIME
2939 code to use new functions and hence generate correct parity DES keys.
2940 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2941 valid (weak or incorrect parity).
2944 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2945 as looking them up. This is useful when the verified structure may contain
2946 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2947 present unless the new PKCS7_NO_CRL flag is asserted.
2950 *) Extend ASN1 oid configuration module. It now additionally accepts the
2953 shortName = some long name, 1.2.3.4
2956 *) Reimplemented the BN_CTX implementation. There is now no more static
2957 limitation on the number of variables it can handle nor the depth of the
2958 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2959 information can now expand as required, and rather than having a single
2960 static array of bignums, BN_CTX now uses a linked-list of such arrays
2961 allowing it to expand on demand whilst maintaining the usefulness of
2962 BN_CTX's "bundling".
2965 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2966 to allow all RSA operations to function using a single BN_CTX.
2969 *) Preliminary support for certificate policy evaluation and checking. This
2970 is initially intended to pass the tests outlined in "Conformance Testing
2971 of Relying Party Client Certificate Path Processing Logic" v1.07.
2974 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2975 remained unused and not that useful. A variety of other little bignum
2976 tweaks and fixes have also been made continuing on from the audit (see
2980 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2981 associated ASN1, EVP and SSL functions and old ASN1 macros.
2984 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2985 and this should never fail. So the return value from the use of
2986 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2987 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2990 *) BN_CTX_get() should return zero-valued bignums, providing the same
2991 initialised value as BN_new().
2992 [Geoff Thorpe, suggested by Ulf Möller]
2994 *) Support for inhibitAnyPolicy certificate extension.
2997 *) An audit of the BIGNUM code is underway, for which debugging code is
2998 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2999 is considered valid when processing BIGNUMs, and causes execution to
3000 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
3001 further steps are taken to deliberately pollute unused data in BIGNUM
3002 structures to try and expose faulty code further on. For now, openssl will
3003 (in its default mode of operation) continue to tolerate the inconsistent
3004 forms that it has tolerated in the past, but authors and packagers should
3005 consider trying openssl and their own applications when compiled with
3006 these debugging symbols defined. It will help highlight potential bugs in
3007 their own code, and will improve the test coverage for OpenSSL itself. At
3008 some point, these tighter rules will become openssl's default to improve
3009 maintainability, though the assert()s and other overheads will remain only
3010 in debugging configurations. See bn.h for more details.
3011 [Geoff Thorpe, Nils Larsch, Ulf Möller]
3013 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
3014 that can only be obtained through BN_CTX_new() (which implicitly
3015 initialises it). The presence of this function only made it possible
3016 to overwrite an existing structure (and cause memory leaks).
3019 *) Because of the callback-based approach for implementing LHASH as a
3020 template type, lh_insert() adds opaque objects to hash-tables and
3021 lh_doall() or lh_doall_arg() are typically used with a destructor callback
3022 to clean up those corresponding objects before destroying the hash table
3023 (and losing the object pointers). So some over-zealous constifications in
3024 LHASH have been relaxed so that lh_insert() does not take (nor store) the
3025 objects as "const" and the lh_doall[_arg] callback wrappers are not
3026 prototyped to have "const" restrictions on the object pointers they are
3027 given (and so aren't required to cast them away any more).
3030 *) The tmdiff.h API was so ugly and minimal that our own timing utility
3031 (speed) prefers to use its own implementation. The two implementations
3032 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
3033 its object type properly exposed (MS_TM) instead of casting to/from "char
3034 *". This may still change yet if someone realises MS_TM and "ms_time_***"
3035 aren't necessarily the greatest nomenclatures - but this is what was used
3036 internally to the implementation so I've used that for now.
3039 *) Ensure that deprecated functions do not get compiled when
3040 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
3041 the self-tests were still using deprecated key-generation functions so
3042 these have been updated also.
3045 *) Reorganise PKCS#7 code to separate the digest location functionality
3046 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
3047 New function PKCS7_set_digest() to set the digest type for PKCS#7
3048 digestedData type. Add additional code to correctly generate the
3049 digestedData type and add support for this type in PKCS7 initialization
3053 *) New function PKCS7_set0_type_other() this initializes a PKCS7
3054 structure of type "other".
3057 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
3058 sure the loop does correctly stop and breaking ("division by zero")
3059 modulus operations are not performed. The (pre-generated) prime
3060 table crypto/bn/bn_prime.h was already correct, but it could not be
3061 re-generated on some platforms because of the "division by zero"
3062 situation in the script.
3063 [Ralf S. Engelschall]
3065 *) Update support for ECC-based TLS ciphersuites according to
3066 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
3067 SHA-1 now is only used for "small" curves (where the
3068 representation of a field element takes up to 24 bytes); for
3069 larger curves, the field element resulting from ECDH is directly
3070 used as premaster secret.
3071 [Douglas Stebila (Sun Microsystems Laboratories)]
3073 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
3074 curve secp160r1 to the tests.
3075 [Douglas Stebila (Sun Microsystems Laboratories)]
3077 *) Add the possibility to load symbols globally with DSO.
3078 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
3080 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
3081 control of the error stack.
3084 *) Add support for STORE in ENGINE.
3087 *) Add the STORE type. The intention is to provide a common interface
3088 to certificate and key stores, be they simple file-based stores, or
3089 HSM-type store, or LDAP stores, or...
3090 NOTE: The code is currently UNTESTED and isn't really used anywhere.
3093 *) Add a generic structure called OPENSSL_ITEM. This can be used to
3094 pass a list of arguments to any function as well as provide a way
3095 for a function to pass data back to the caller.
3098 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
3099 works like BUF_strdup() but can be used to duplicate a portion of
3100 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
3104 *) Add the function sk_find_ex() which works like sk_find(), but will
3105 return an index to an element even if an exact match couldn't be
3106 found. The index is guaranteed to point at the element where the
3107 searched-for key would be inserted to preserve sorting order.
3110 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
3111 takes an extra flags argument for optional functionality. Currently,
3112 the following flags are defined:
3114 OBJ_BSEARCH_VALUE_ON_NOMATCH
3115 This one gets OBJ_bsearch_ex() to return a pointer to the first
3116 element where the comparing function returns a negative or zero
3119 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
3120 This one gets OBJ_bsearch_ex() to return a pointer to the first
3121 element where the comparing function returns zero. This is useful
3122 if there are more than one element where the comparing function
3126 *) Make it possible to create self-signed certificates with 'openssl ca'
3127 in such a way that the self-signed certificate becomes part of the
3128 CA database and uses the same mechanisms for serial number generation
3129 as all other certificate signing. The new flag '-selfsign' enables
3130 this functionality. Adapt CA.sh and CA.pl.in.
3133 *) Add functionality to check the public key of a certificate request
3134 against a given private. This is useful to check that a certificate
3135 request can be signed by that key (self-signing).
3138 *) Make it possible to have multiple active certificates with the same
3139 subject in the CA index file. This is done only if the keyword
3140 'unique_subject' is set to 'no' in the main CA section (default
3141 if 'CA_default') of the configuration file. The value is saved
3142 with the database itself in a separate index attribute file,
3143 named like the index file with '.attr' appended to the name.
3146 *) Generate muti valued AVAs using '+' notation in config files for
3150 *) Support for nameConstraints certificate extension.
3153 *) Support for policyConstraints certificate extension.
3156 *) Support for policyMappings certificate extension.
3159 *) Make sure the default DSA_METHOD implementation only uses its
3160 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
3161 and change its own handlers to be NULL so as to remove unnecessary
3162 indirection. This lets alternative implementations fallback to the
3163 default implementation more easily.
3166 *) Support for directoryName in GeneralName related extensions
3170 *) Make it possible to link applications using Makefile.shared.
3171 Make that possible even when linking against static libraries!
3174 *) Support for single pass processing for S/MIME signing. This now
3175 means that S/MIME signing can be done from a pipe, in addition
3176 cleartext signing (multipart/signed type) is effectively streaming
3177 and the signed data does not need to be all held in memory.
3179 This is done with a new flag PKCS7_STREAM. When this flag is set
3180 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
3181 is done after the data is output (and digests calculated) in
3182 SMIME_write_PKCS7().
3185 *) Add full support for -rpath/-R, both in shared libraries and
3186 applications, at least on the platforms where it's known how
3190 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
3191 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
3192 will now compute a table of multiples of the generator that
3193 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
3194 faster (notably in the case of a single point multiplication,
3195 scalar * generator).
3196 [Nils Larsch, Bodo Moeller]
3198 *) IPv6 support for certificate extensions. The various extensions
3199 which use the IP:a.b.c.d can now take IPv6 addresses using the
3200 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
3204 *) Added an ENGINE that implements RSA by performing private key
3205 exponentiations with the GMP library. The conversions to and from
3206 GMP's mpz_t format aren't optimised nor are any montgomery forms
3207 cached, and on x86 it appears OpenSSL's own performance has caught up.
3208 However there are likely to be other architectures where GMP could
3209 provide a boost. This ENGINE is not built in by default, but it can be
3210 specified at Configure time and should be accompanied by the necessary
3211 linker additions, eg;
3212 ./config -DOPENSSL_USE_GMP -lgmp
3215 *) "openssl engine" will not display ENGINE/DSO load failure errors when
3216 testing availability of engines with "-t" - the old behaviour is
3217 produced by increasing the feature's verbosity with "-tt".
3220 *) ECDSA routines: under certain error conditions uninitialized BN objects
3221 could be freed. Solution: make sure initialization is performed early
3222 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
3226 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
3227 and DH_METHOD (eg. by ENGINE implementations) to override the normal
3228 software implementations. For DSA and DH, parameter generation can
3229 also be overriden by providing the appropriate method callbacks.
3232 *) Change the "progress" mechanism used in key-generation and
3233 primality testing to functions that take a new BN_GENCB pointer in
3234 place of callback/argument pairs. The new API functions have "_ex"
3235 postfixes and the older functions are reimplemented as wrappers for
3236 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
3237 declarations of the old functions to help (graceful) attempts to
3238 migrate to the new functions. Also, the new key-generation API
3239 functions operate on a caller-supplied key-structure and return
3240 success/failure rather than returning a key or NULL - this is to
3241 help make "keygen" another member function of RSA_METHOD etc.
3243 Example for using the new callback interface:
3245 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
3249 BN_GENCB_set(&my_cb, my_callback, my_arg);
3251 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
3252 /* For the meaning of a, b in calls to my_callback(), see the
3253 * documentation of the function that calls the callback.
3254 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
3255 * my_callback should return 1 if it wants BN_is_prime_ex()
3256 * to continue, or 0 to stop.
3261 *) Change the ZLIB compression method to be stateful, and make it
3262 available to TLS with the number defined in
3263 draft-ietf-tls-compression-04.txt.
3266 *) Add the ASN.1 structures and functions for CertificatePair, which
3267 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
3269 CertificatePair ::= SEQUENCE {
3270 forward [0] Certificate OPTIONAL,
3271 reverse [1] Certificate OPTIONAL,
3272 -- at least one of the pair shall be present -- }
3274 Also implement the PEM functions to read and write certificate
3275 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
3277 This needed to be defined, mostly for the sake of the LDAP
3278 attribute crossCertificatePair, but may prove useful elsewhere as
3282 *) Make it possible to inhibit symlinking of shared libraries in
3283 Makefile.shared, for Cygwin's sake.
3286 *) Extend the BIGNUM API by creating a function
3287 void BN_set_negative(BIGNUM *a, int neg);
3288 and a macro that behave like
3289 int BN_is_negative(const BIGNUM *a);
3291 to avoid the need to access 'a->neg' directly in applications.
3294 *) Implement fast modular reduction for pseudo-Mersenne primes
3295 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
3296 EC_GROUP_new_curve_GFp() will now automatically use this
3298 [Nils Larsch <nla@trustcenter.de>]
3300 *) Add new lock type (CRYPTO_LOCK_BN).
3303 *) Change the ENGINE framework to automatically load engines
3304 dynamically from specific directories unless they could be
3305 found to already be built in or loaded. Move all the
3306 current engines except for the cryptodev one to a new
3308 The engines in engines/ are built as shared libraries if
3309 the "shared" options was given to ./Configure or ./config.
3310 Otherwise, they are inserted in libcrypto.a.
3311 /usr/local/ssl/engines is the default directory for dynamic
3312 engines, but that can be overriden at configure time through
3313 the usual use of --prefix and/or --openssldir, and at run
3314 time with the environment variable OPENSSL_ENGINES.
3315 [Geoff Thorpe and Richard Levitte]
3317 *) Add Makefile.shared, a helper makefile to build shared
3318 libraries. Addapt Makefile.org.
3321 *) Add version info to Win32 DLLs.
3322 [Peter 'Luna' Runestig" <peter@runestig.com>]
3324 *) Add new 'medium level' PKCS#12 API. Certificates and keys
3325 can be added using this API to created arbitrary PKCS#12
3326 files while avoiding the low level API.
3328 New options to PKCS12_create(), key or cert can be NULL and
3329 will then be omitted from the output file. The encryption
3330 algorithm NIDs can be set to -1 for no encryption, the mac
3331 iteration count can be set to 0 to omit the mac.
3333 Enhance pkcs12 utility by making the -nokeys and -nocerts
3334 options work when creating a PKCS#12 file. New option -nomac
3335 to omit the mac, NONE can be set for an encryption algorithm.
3336 New code is modified to use the enhanced PKCS12_create()
3337 instead of the low level API.
3340 *) Extend ASN1 encoder to support indefinite length constructed
3341 encoding. This can output sequences tags and octet strings in
3342 this form. Modify pk7_asn1.c to support indefinite length
3343 encoding. This is experimental and needs additional code to
3344 be useful, such as an ASN1 bio and some enhanced streaming
3347 Extend template encode functionality so that tagging is passed
3348 down to the template encoder.
3351 *) Let 'openssl req' fail if an argument to '-newkey' is not
3352 recognized instead of using RSA as a default.
3355 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
3356 As these are not official, they are not included in "ALL";
3357 the "ECCdraft" ciphersuite group alias can be used to select them.
3358 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
3360 *) Add ECDH engine support.
3361 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
3363 *) Add ECDH in new directory crypto/ecdh/.
3364 [Douglas Stebila (Sun Microsystems Laboratories)]
3366 *) Let BN_rand_range() abort with an error after 100 iterations
3367 without success (which indicates a broken PRNG).
3370 *) Change BN_mod_sqrt() so that it verifies that the input value
3371 is really the square of the return value. (Previously,
3372 BN_mod_sqrt would show GIGO behaviour.)
3375 *) Add named elliptic curves over binary fields from X9.62, SECG,
3376 and WAP/WTLS; add OIDs that were still missing.
3378 [Sheueling Chang Shantz and Douglas Stebila
3379 (Sun Microsystems Laboratories)]
3381 *) Extend the EC library for elliptic curves over binary fields
3382 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
3385 EC_GF2m_simple_method
3389 EC_GROUP_new_curve_GF2m
3390 EC_GROUP_set_curve_GF2m
3391 EC_GROUP_get_curve_GF2m
3392 EC_POINT_set_affine_coordinates_GF2m
3393 EC_POINT_get_affine_coordinates_GF2m
3394 EC_POINT_set_compressed_coordinates_GF2m
3396 Point compression for binary fields is disabled by default for
3397 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
3400 As binary polynomials are represented as BIGNUMs, various members
3401 of the EC_GROUP and EC_POINT data structures can be shared
3402 between the implementations for prime fields and binary fields;
3403 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
3404 are essentially identical to their ..._GFp counterparts.
3405 (For simplicity, the '..._GFp' prefix has been dropped from
3406 various internal method names.)
3408 An internal 'field_div' method (similar to 'field_mul' and
3409 'field_sqr') has been added; this is used only for binary fields.
3411 [Sheueling Chang Shantz and Douglas Stebila
3412 (Sun Microsystems Laboratories)]
3414 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
3415 through methods ('mul', 'precompute_mult').
3417 The generic implementations (now internally called 'ec_wNAF_mul'
3418 and 'ec_wNAF_precomputed_mult') remain the default if these
3419 methods are undefined.
3421 [Sheueling Chang Shantz and Douglas Stebila
3422 (Sun Microsystems Laboratories)]
3424 *) New function EC_GROUP_get_degree, which is defined through
3425 EC_METHOD. For curves over prime fields, this returns the bit
3426 length of the modulus.
3428 [Sheueling Chang Shantz and Douglas Stebila
3429 (Sun Microsystems Laboratories)]
3431 *) New functions EC_GROUP_dup, EC_POINT_dup.
3432 (These simply call ..._new and ..._copy).
3434 [Sheueling Chang Shantz and Douglas Stebila
3435 (Sun Microsystems Laboratories)]
3437 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
3438 Polynomials are represented as BIGNUMs (where the sign bit is not
3439 used) in the following functions [macros]:
3442 BN_GF2m_sub [= BN_GF2m_add]
3443 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
3444 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
3445 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
3447 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
3448 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
3449 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
3450 BN_GF2m_cmp [= BN_ucmp]
3452 (Note that only the 'mod' functions are actually for fields GF(2^m).
3453 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
3455 For some functions, an the irreducible polynomial defining a
3456 field can be given as an 'unsigned int[]' with strictly
3457 decreasing elements giving the indices of those bits that are set;
3458 i.e., p[] represents the polynomial
3459 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
3461 p[0] > p[1] > ... > p[k] = 0.
3462 This applies to the following functions:
3467 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
3468 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
3470 BN_GF2m_mod_sqrt_arr
3471 BN_GF2m_mod_solve_quad_arr
3475 Conversion can be performed by the following functions:
3480 bntest.c has additional tests for binary polynomial arithmetic.
3482 Two implementations for BN_GF2m_mod_div() are available.
3483 The default algorithm simply uses BN_GF2m_mod_inv() and
3484 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
3485 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
3486 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
3488 [Sheueling Chang Shantz and Douglas Stebila
3489 (Sun Microsystems Laboratories)]
3491 *) Add new error code 'ERR_R_DISABLED' that can be used when some
3492 functionality is disabled at compile-time.
3493 [Douglas Stebila <douglas.stebila@sun.com>]
3495 *) Change default behaviour of 'openssl asn1parse' so that more
3496 information is visible when viewing, e.g., a certificate:
3498 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
3499 mode the content of non-printable OCTET STRINGs is output in a
3500 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
3501 avoid the appearance of a printable string.
3502 [Nils Larsch <nla@trustcenter.de>]
3504 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
3506 EC_GROUP_set_asn1_flag()
3507 EC_GROUP_get_asn1_flag()
3508 EC_GROUP_set_point_conversion_form()
3509 EC_GROUP_get_point_conversion_form()
3510 These control ASN1 encoding details:
3511 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
3512 has been set to OPENSSL_EC_NAMED_CURVE.
3513 - Points are encoded in uncompressed form by default; options for
3514 asn1_for are as for point2oct, namely
3515 POINT_CONVERSION_COMPRESSED
3516 POINT_CONVERSION_UNCOMPRESSED
3517 POINT_CONVERSION_HYBRID
3519 Also add 'seed' and 'seed_len' members to EC_GROUP with access
3522 EC_GROUP_get0_seed()
3523 EC_GROUP_get_seed_len()
3524 This is used only for ASN1 purposes (so far).
3525 [Nils Larsch <nla@trustcenter.de>]
3527 *) Add 'field_type' member to EC_METHOD, which holds the NID
3528 of the appropriate field type OID. The new function
3529 EC_METHOD_get_field_type() returns this value.
3530 [Nils Larsch <nla@trustcenter.de>]
3535 EC_POINT_point2hex()
3536 EC_POINT_hex2point()
3537 providing useful interfaces to EC_POINT_point2oct() and
3538 EC_POINT_oct2point().
3539 [Nils Larsch <nla@trustcenter.de>]
3541 *) Change internals of the EC library so that the functions
3542 EC_GROUP_set_generator()
3543 EC_GROUP_get_generator()
3544 EC_GROUP_get_order()
3545 EC_GROUP_get_cofactor()
3546 are implemented directly in crypto/ec/ec_lib.c and not dispatched
3547 to methods, which would lead to unnecessary code duplication when
3548 adding different types of curves.
3549 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
3551 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
3552 arithmetic, and such that modified wNAFs are generated
3553 (which avoid length expansion in many cases).
3556 *) Add a function EC_GROUP_check_discriminant() (defined via
3557 EC_METHOD) that verifies that the curve discriminant is non-zero.
3559 Add a function EC_GROUP_check() that makes some sanity tests
3560 on a EC_GROUP, its generator and order. This includes
3561 EC_GROUP_check_discriminant().
3562 [Nils Larsch <nla@trustcenter.de>]
3564 *) Add ECDSA in new directory crypto/ecdsa/.
3566 Add applications 'openssl ecparam' and 'openssl ecdsa'
3567 (these are based on 'openssl dsaparam' and 'openssl dsa').
3569 ECDSA support is also included in various other files across the
3570 library. Most notably,
3571 - 'openssl req' now has a '-newkey ecdsa:file' option;
3572 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
3573 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
3574 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
3575 them suitable for ECDSA where domain parameters must be
3576 extracted before the specific public key;
3577 - ECDSA engine support has been added.
3578 [Nils Larsch <nla@trustcenter.de>]
3580 *) Include some named elliptic curves, and add OIDs from X9.62,
3581 SECG, and WAP/WTLS. Each curve can be obtained from the new
3583 EC_GROUP_new_by_curve_name(),
3584 and the list of available named curves can be obtained with
3585 EC_get_builtin_curves().
3586 Also add a 'curve_name' member to EC_GROUP objects, which can be
3588 EC_GROUP_set_curve_name()
3589 EC_GROUP_get_curve_name()
3590 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
3592 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3593 was actually never needed) and in BN_mul(). The removal in BN_mul()
3594 required a small change in bn_mul_part_recursive() and the addition
3595 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3596 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3597 bn_sub_words() and bn_add_words() except they take arrays with
3601 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
3603 *) Cleanse PEM buffers before freeing them since they may contain
3605 [Benjamin Bennett <ben@psc.edu>]
3607 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3608 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3609 authentication-only ciphersuites.
3612 *) Since AES128 and AES256 share a single mask bit in the logic of
3613 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3614 kludge to work properly if AES128 is available and AES256 isn't.
3617 *) Expand security boundary to match 1.1.1 module.
3620 *) Remove redundant features: hash file source, editing of test vectors
3621 modify fipsld to use external fips_premain.c signature.
3624 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3625 run algorithm test programs.
3628 *) Make algorithm test programs more tolerant of whitespace.
3631 *) Have SSL/TLS server implementation tolerate "mismatched" record
3632 protocol version while receiving ClientHello even if the
3633 ClientHello is fragmented. (The server can't insist on the
3634 particular protocol version it has chosen before the ServerHello
3635 message has informed the client about his choice.)
3638 *) Load error codes if they are not already present instead of using a
3639 static variable. This allows them to be cleanly unloaded and reloaded.
3642 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3644 *) Introduce limits to prevent malicious keys being able to
3645 cause a denial of service. (CVE-2006-2940)
3646 [Steve Henson, Bodo Moeller]
3648 *) Fix ASN.1 parsing of certain invalid structures that can result
3649 in a denial of service. (CVE-2006-2937) [Steve Henson]
3651 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3652 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3654 *) Fix SSL client code which could crash if connecting to a
3655 malicious SSLv2 server. (CVE-2006-4343)
3656 [Tavis Ormandy and Will Drewry, Google Security Team]
3658 *) Change ciphersuite string processing so that an explicit
3659 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3660 will no longer include "AES128-SHA"), and any other similar
3661 ciphersuite (same bitmap) from *other* protocol versions (so that
3662 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3663 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3664 changes from 0.9.8b and 0.9.8d.
3667 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3669 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3670 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3672 *) Change the Unix randomness entropy gathering to use poll() when
3673 possible instead of select(), since the latter has some
3674 undesirable limitations.
3675 [Darryl Miles via Richard Levitte and Bodo Moeller]
3677 *) Disable rogue ciphersuites:
3679 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3680 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3681 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3683 The latter two were purportedly from
3684 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3687 Also deactive the remaining ciphersuites from
3688 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3689 unofficial, and the ID has long expired.
3692 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3693 dual-core machines) and other potential thread-safety issues.
3696 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3698 *) Adapt fipsld and the build system to link against the validated FIPS
3699 module in FIPS mode.
3702 *) Fixes for VC++ 2005 build under Windows.
3705 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3706 from a Windows bash shell such as MSYS. It is autodetected from the
3707 "config" script when run from a VC++ environment. Modify standard VC++
3708 build to use fipscanister.o from the GNU make build.
3711 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3713 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3714 The value now differs depending on if you build for FIPS or not.
3715 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3716 safely run with a non-FIPSed libcrypto, as it may crash because of
3717 the difference induced by this change.
3720 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3722 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3723 (part of SSL_OP_ALL). This option used to disable the
3724 countermeasure against man-in-the-middle protocol-version
3725 rollback in the SSL 2.0 server implementation, which is a bad
3726 idea. (CVE-2005-2969)
3728 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3729 for Information Security, National Institute of Advanced Industrial
3730 Science and Technology [AIST], Japan)]
3732 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3733 mainly for FIPS compliance and not fully integrated at this stage.
3736 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3737 the exponentiation using a fixed-length exponent. (Otherwise,
3738 the information leaked through timing could expose the secret key
3739 after many signatures; cf. Bleichenbacher's attack on DSA with
3743 *) Make a new fixed-window mod_exp implementation the default for
3744 RSA, DSA, and DH private-key operations so that the sequence of
3745 squares and multiplies and the memory access pattern are
3746 independent of the particular secret key. This will mitigate
3747 cache-timing and potential related attacks.
3749 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3750 and this is automatically used by BN_mod_exp_mont() if the new flag
3751 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3752 will use this BN flag for private exponents unless the flag
3753 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3754 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3756 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3758 *) Change the client implementation for SSLv23_method() and
3759 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3760 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3761 (Previously, the SSL 2.0 backwards compatible Client Hello
3762 message format would be used even with SSL_OP_NO_SSLv2.)
3765 *) Add support for smime-type MIME parameter in S/MIME messages which some
3769 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3770 a threadsafe manner. Modify rsa code to use new function and add calls
3771 to dsa and dh code (which had race conditions before).
3774 *) Include the fixed error library code in the C error file definitions
3775 instead of fixing them up at runtime. This keeps the error code
3776 structures constant.
3779 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3781 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3784 *) Fixes for newer kerberos headers. NB: the casts are needed because
3785 the 'length' field is signed on one version and unsigned on another
3786 with no (?) obvious way to tell the difference, without these VC++
3787 complains. Also the "definition" of FAR (blank) is no longer included
3788 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3789 some needed definitions.
3792 *) Undo Cygwin change.
3795 *) Added support for proxy certificates according to RFC 3820.
3796 Because they may be a security thread to unaware applications,
3797 they must be explicitely allowed in run-time. See
3798 docs/HOWTO/proxy_certificates.txt for further information.
3801 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3803 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3804 server and client random values. Previously
3805 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3806 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3808 This change has negligible security impact because:
3810 1. Server and client random values still have 24 bytes of pseudo random
3813 2. Server and client random values are sent in the clear in the initial
3816 3. The master secret is derived using the premaster secret (48 bytes in
3817 size for static RSA ciphersuites) as well as client server and random
3820 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3823 [Stephen Henson, reported by UK NISCC]
3825 *) Use Windows randomness collection on Cygwin.
3828 *) Fix hang in EGD/PRNGD query when communication socket is closed
3829 prematurely by EGD/PRNGD.
3830 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3832 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3835 *) Back-port of selected performance improvements from development
3836 branch, as well as improved support for PowerPC platforms.
3839 *) Add lots of checks for memory allocation failure, error codes to indicate
3840 failure and freeing up memory if a failure occurs.
3841 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3843 *) Add new -passin argument to dgst.
3846 *) Perform some character comparisons of different types in X509_NAME_cmp:
3847 this is needed for some certificates that reencode DNs into UTF8Strings
3848 (in violation of RFC3280) and can't or wont issue name rollover
3852 *) Make an explicit check during certificate validation to see that
3853 the CA setting in each certificate on the chain is correct. As a
3854 side effect always do the following basic checks on extensions,
3855 not just when there's an associated purpose to the check:
3857 - if there is an unhandled critical extension (unless the user
3858 has chosen to ignore this fault)
3859 - if the path length has been exceeded (if one is set at all)
3860 - that certain extensions fit the associated purpose (if one has
3864 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3866 *) Avoid a race condition when CRLs are checked in a multi threaded
3867 environment. This would happen due to the reordering of the revoked
3868 entries during signature checking and serial number lookup. Now the
3869 encoding is cached and the serial number sort performed under a lock.
3870 Add new STACK function sk_is_sorted().
3873 *) Add Delta CRL to the extension code.
3876 *) Various fixes to s3_pkt.c so alerts are sent properly.
3877 [David Holmes <d.holmes@f5.com>]
3879 *) Reduce the chances of duplicate issuer name and serial numbers (in
3880 violation of RFC3280) using the OpenSSL certificate creation utilities.
3881 This is done by creating a random 64 bit value for the initial serial
3882 number when a serial number file is created or when a self signed
3883 certificate is created using 'openssl req -x509'. The initial serial
3884 number file is created using 'openssl x509 -next_serial' in CA.pl
3885 rather than being initialized to 1.
3888 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3890 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3891 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3892 [Joe Orton, Steve Henson]
3894 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3896 [Joe Orton, Steve Henson]
3898 *) Make it possible to have multiple active certificates with the same
3899 subject in the CA index file. This is done only if the keyword
3900 'unique_subject' is set to 'no' in the main CA section (default
3901 if 'CA_default') of the configuration file. The value is saved
3902 with the database itself in a separate index attribute file,
3903 named like the index file with '.attr' appended to the name.
3906 *) X509 verify fixes. Disable broken certificate workarounds when
3907 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3908 keyUsage extension present. Don't accept CRLs with unhandled critical
3909 extensions: since verify currently doesn't process CRL extensions this
3910 rejects a CRL with *any* critical extensions. Add new verify error codes
3914 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3915 A clarification of RFC2560 will require the use of OCTET STRINGs and
3916 some implementations cannot handle the current raw format. Since OpenSSL
3917 copies and compares OCSP nonces as opaque blobs without any attempt at
3918 parsing them this should not create any compatibility issues.
3921 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3922 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3923 this HMAC (and other) operations are several times slower than OpenSSL
3927 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3928 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3930 *) Use the correct content when signing type "other".
3933 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3935 *) Fix various bugs revealed by running the NISCC test suite:
3937 Stop out of bounds reads in the ASN1 code when presented with
3938 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3940 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3942 If verify callback ignores invalid public key errors don't try to check
3943 certificate signature with the NULL public key.
3947 *) New -ignore_err option in ocsp application to stop the server
3948 exiting on the first error in a request.
3951 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3952 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3956 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3957 extra data after the compression methods not only for TLS 1.0
3958 but also for SSL 3.0 (as required by the specification).
3959 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3961 *) Change X509_certificate_type() to mark the key as exported/exportable
3962 when it's 512 *bits* long, not 512 bytes.
3965 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3966 blocks during encryption.
3969 *) Various fixes to base64 BIO and non blocking I/O. On write
3970 flushes were not handled properly if the BIO retried. On read
3971 data was not being buffered properly and had various logic bugs.
3972 This also affects blocking I/O when the data being decoded is a
3976 *) Various S/MIME bugfixes and compatibility changes:
3977 output correct application/pkcs7 MIME type if
3978 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3979 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3980 of files as .eml work). Correctly handle very long lines in MIME
3984 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3986 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3987 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3988 a protocol version number mismatch like a decryption error
3989 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3992 *) Turn on RSA blinding by default in the default implementation
3993 to avoid a timing attack. Applications that don't want it can call
3994 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3995 They would be ill-advised to do so in most cases.
3996 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3998 *) Change RSA blinding code so that it works when the PRNG is not
3999 seeded (in this case, the secret RSA exponent is abused as
4000 an unpredictable seed -- if it is not unpredictable, there
4001 is no point in blinding anyway). Make RSA blinding thread-safe
4002 by remembering the creator's thread ID in rsa->blinding and
4003 having all other threads use local one-time blinding factors
4004 (this requires more computation than sharing rsa->blinding, but
4005 avoids excessive locking; and if an RSA object is not shared
4006 between threads, blinding will still be very fast).
4009 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
4010 ENGINE as defaults for all supported algorithms irrespective of
4011 the 'flags' parameter. 'flags' is now honoured, so applications
4012 should make sure they are passing it correctly.
4015 *) Target "mingw" now allows native Windows code to be generated in
4016 the Cygwin environment as well as with the MinGW compiler.
4019 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
4021 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
4022 via timing by performing a MAC computation even if incorrrect
4023 block cipher padding has been found. This is a countermeasure
4024 against active attacks where the attacker has to distinguish
4025 between bad padding and a MAC verification error. (CVE-2003-0078)
4027 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
4028 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
4029 Martin Vuagnoux (EPFL, Ilion)]
4031 *) Make the no-err option work as intended. The intention with no-err
4032 is not to have the whole error stack handling routines removed from
4033 libcrypto, it's only intended to remove all the function name and
4034 reason texts, thereby removing some of the footprint that may not
4035 be interesting if those errors aren't displayed anyway.
4037 NOTE: it's still possible for any application or module to have it's
4038 own set of error texts inserted. The routines are there, just not
4039 used by default when no-err is given.
4042 *) Add support for FreeBSD on IA64.
4043 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
4045 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
4046 Kerberos function mit_des_cbc_cksum(). Before this change,
4047 the value returned by DES_cbc_cksum() was like the one from
4048 mit_des_cbc_cksum(), except the bytes were swapped.
4049 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
4051 *) Allow an application to disable the automatic SSL chain building.
4052 Before this a rather primitive chain build was always performed in
4053 ssl3_output_cert_chain(): an application had no way to send the
4054 correct chain if the automatic operation produced an incorrect result.
4056 Now the chain builder is disabled if either:
4058 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
4060 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
4062 The reasoning behind this is that an application would not want the
4063 auto chain building to take place if extra chain certificates are
4064 present and it might also want a means of sending no additional
4065 certificates (for example the chain has two certificates and the
4069 *) Add the possibility to build without the ENGINE framework.
4070 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
4072 *) Under Win32 gmtime() can return NULL: check return value in
4073 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
4076 *) DSA routines: under certain error conditions uninitialized BN objects
4077 could be freed. Solution: make sure initialization is performed early
4078 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
4079 Nils Larsch <nla@trustcenter.de> via PR#459)
4082 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
4083 checked on reconnect on the client side, therefore session resumption
4084 could still fail with a "ssl session id is different" error. This
4085 behaviour is masked when SSL_OP_ALL is used due to
4086 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
4087 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
4088 followup to PR #377.
4091 *) IA-32 assembler support enhancements: unified ELF targets, support
4092 for SCO/Caldera platforms, fix for Cygwin shared build.
4095 *) Add support for FreeBSD on sparc64. As a consequence, support for
4096 FreeBSD on non-x86 processors is separate from x86 processors on
4097 the config script, much like the NetBSD support.
4098 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
4100 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
4102 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
4105 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
4106 code (06) was taken as the first octet of the session ID and the last
4107 octet was ignored consequently. As a result SSLv2 client side session
4108 caching could not have worked due to the session ID mismatch between
4110 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
4114 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
4115 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
4119 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
4120 seems that in spite of existing for more than a year, many application
4121 author have done nothing to provide the necessary callbacks, which
4122 means that this particular engine will not work properly anywhere.
4123 This is a very unfortunate situation which forces us, in the name
4124 of usability, to give the hw_ncipher.c a static lock, which is part
4126 NOTE: This is for the 0.9.7 series ONLY. This hack will never
4127 appear in 0.9.8 or later. We EXPECT application authors to have
4128 dealt properly with this when 0.9.8 is released (unless we actually
4129 make such changes in the libcrypto locking code that changes will
4130 have to be made anyway).
4133 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
4134 octets have been read, EOF or an error occurs. Without this change
4135 some truncated ASN1 structures will not produce an error.
4138 *) Disable Heimdal support, since it hasn't been fully implemented.
4139 Still give the possibility to force the use of Heimdal, but with
4140 warnings and a request that patches get sent to openssl-dev.
4143 *) Add the VC-CE target, introduce the WINCE sysname, and add
4144 INSTALL.WCE and appropriate conditionals to make it build.
4145 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
4147 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
4148 cygssl-x.y.z.dll, where x, y and z are the major, minor and
4149 edit numbers of the version.
4150 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
4152 *) Introduce safe string copy and catenation functions
4153 (BUF_strlcpy() and BUF_strlcat()).
4154 [Ben Laurie (CHATS) and Richard Levitte]
4156 *) Avoid using fixed-size buffers for one-line DNs.
4157 [Ben Laurie (CHATS)]
4159 *) Add BUF_MEM_grow_clean() to avoid information leakage when
4160 resizing buffers containing secrets, and use where appropriate.
4161 [Ben Laurie (CHATS)]
4163 *) Avoid using fixed size buffers for configuration file location.
4164 [Ben Laurie (CHATS)]
4166 *) Avoid filename truncation for various CA files.
4167 [Ben Laurie (CHATS)]
4169 *) Use sizeof in preference to magic numbers.
4170 [Ben Laurie (CHATS)]
4172 *) Avoid filename truncation in cert requests.
4173 [Ben Laurie (CHATS)]
4175 *) Add assertions to check for (supposedly impossible) buffer
4177 [Ben Laurie (CHATS)]
4179 *) Don't cache truncated DNS entries in the local cache (this could
4180 potentially lead to a spoofing attack).
4181 [Ben Laurie (CHATS)]
4183 *) Fix various buffers to be large enough for hex/decimal
4184 representations in a platform independent manner.
4185 [Ben Laurie (CHATS)]
4187 *) Add CRYPTO_realloc_clean() to avoid information leakage when
4188 resizing buffers containing secrets, and use where appropriate.
4189 [Ben Laurie (CHATS)]
4191 *) Add BIO_indent() to avoid much slightly worrying code to do
4193 [Ben Laurie (CHATS)]
4195 *) Convert sprintf()/BIO_puts() to BIO_printf().
4196 [Ben Laurie (CHATS)]
4198 *) buffer_gets() could terminate with the buffer only half
4200 [Ben Laurie (CHATS)]
4202 *) Add assertions to prevent user-supplied crypto functions from
4203 overflowing internal buffers by having large block sizes, etc.
4204 [Ben Laurie (CHATS)]
4206 *) New OPENSSL_assert() macro (similar to assert(), but enabled
4208 [Ben Laurie (CHATS)]
4210 *) Eliminate unused copy of key in RC4.
4211 [Ben Laurie (CHATS)]
4213 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
4214 [Ben Laurie (CHATS)]
4216 *) Fix off-by-one error in EGD path.
4217 [Ben Laurie (CHATS)]
4219 *) If RANDFILE path is too long, ignore instead of truncating.
4220 [Ben Laurie (CHATS)]
4222 *) Eliminate unused and incorrectly sized X.509 structure
4224 [Ben Laurie (CHATS)]
4226 *) Eliminate unused and dangerous function knumber().
4227 [Ben Laurie (CHATS)]
4229 *) Eliminate unused and dangerous structure, KSSL_ERR.
4230 [Ben Laurie (CHATS)]
4232 *) Protect against overlong session ID context length in an encoded
4233 session object. Since these are local, this does not appear to be
4235 [Ben Laurie (CHATS)]
4237 *) Change from security patch (see 0.9.6e below) that did not affect
4238 the 0.9.6 release series:
4240 Remote buffer overflow in SSL3 protocol - an attacker could
4241 supply an oversized master key in Kerberos-enabled versions.
4243 [Ben Laurie (CHATS)]
4245 *) Change the SSL kerb5 codes to match RFC 2712.
4248 *) Make -nameopt work fully for req and add -reqopt switch.
4249 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
4251 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
4252 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
4254 *) Make sure tests can be performed even if the corresponding algorithms
4255 have been removed entirely. This was also the last step to make
4256 OpenSSL compilable with DJGPP under all reasonable conditions.
4257 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
4259 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
4260 to allow version independent disabling of normally unselected ciphers,
4261 which may be activated as a side-effect of selecting a single cipher.
4263 (E.g., cipher list string "RSA" enables ciphersuites that are left
4264 out of "ALL" because they do not provide symmetric encryption.
4265 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
4266 [Lutz Jaenicke, Bodo Moeller]
4268 *) Add appropriate support for separate platform-dependent build
4269 directories. The recommended way to make a platform-dependent
4270 build directory is the following (tested on Linux), maybe with
4273 # Place yourself outside of the OpenSSL source tree. In
4274 # this example, the environment variable OPENSSL_SOURCE
4275 # is assumed to contain the absolute OpenSSL source directory.
4276 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
4277 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
4278 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
4279 mkdir -p `dirname $F`
4280 ln -s $OPENSSL_SOURCE/$F $F
4283 To be absolutely sure not to disturb the source tree, a "make clean"
4284 is a good thing. If it isn't successfull, don't worry about it,
4285 it probably means the source directory is very clean.
4288 *) Make sure any ENGINE control commands make local copies of string
4289 pointers passed to them whenever necessary. Otherwise it is possible
4290 the caller may have overwritten (or deallocated) the original string
4291 data when a later ENGINE operation tries to use the stored values.
4292 [Götz Babin-Ebell <babinebell@trustcenter.de>]
4294 *) Improve diagnostics in file reading and command-line digests.
4295 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
4297 *) Add AES modes CFB and OFB to the object database. Correct an
4298 error in AES-CFB decryption.
4301 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
4302 allows existing EVP_CIPHER_CTX structures to be reused after
4303 calling EVP_*Final(). This behaviour is used by encryption
4304 BIOs and some applications. This has the side effect that
4305 applications must explicitly clean up cipher contexts with
4306 EVP_CIPHER_CTX_cleanup() or they will leak memory.
4309 *) Check the values of dna and dnb in bn_mul_recursive before calling
4310 bn_mul_comba (a non zero value means the a or b arrays do not contain
4311 n2 elements) and fallback to bn_mul_normal if either is not zero.
4314 *) Fix escaping of non-ASCII characters when using the -subj option
4315 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
4318 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
4319 form for "surname", serialNumber has no short form.
4320 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
4321 therefore remove "mail" short name for "internet 7".
4322 The OID for unique identifiers in X509 certificates is
4323 x500UniqueIdentifier, not uniqueIdentifier.
4324 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
4327 *) Add an "init" command to the ENGINE config module and auto initialize
4328 ENGINEs. Without any "init" command the ENGINE will be initialized
4329 after all ctrl commands have been executed on it. If init=1 the
4330 ENGINE is initailized at that point (ctrls before that point are run
4331 on the uninitialized ENGINE and after on the initialized one). If
4332 init=0 then the ENGINE will not be iniatialized at all.
4335 *) Fix the 'app_verify_callback' interface so that the user-defined
4336 argument is actually passed to the callback: In the
4337 SSL_CTX_set_cert_verify_callback() prototype, the callback
4338 declaration has been changed from
4341 int (*cb)(X509_STORE_CTX *,void *);
4342 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
4343 i=s->ctx->app_verify_callback(&ctx)
4344 has been changed into
4345 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
4347 To update applications using SSL_CTX_set_cert_verify_callback(),
4348 a dummy argument can be added to their callback functions.
4349 [D. K. Smetters <smetters@parc.xerox.com>]
4351 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
4352 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
4354 *) Add and OPENSSL_LOAD_CONF define which will cause
4355 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
4356 This allows older applications to transparently support certain
4357 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
4358 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
4359 load the config file and OPENSSL_add_all_algorithms_conf() which will
4360 always load it have also been added.
4363 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
4364 Adjust NIDs and EVP layer.
4365 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4367 *) Config modules support in openssl utility.
4369 Most commands now load modules from the config file,
4370 though in a few (such as version) this isn't done
4371 because it couldn't be used for anything.
4373 In the case of ca and req the config file used is
4374 the same as the utility itself: that is the -config
4375 command line option can be used to specify an
4379 *) Move default behaviour from OPENSSL_config(). If appname is NULL
4380 use "openssl_conf" if filename is NULL use default openssl config file.
4383 *) Add an argument to OPENSSL_config() to allow the use of an alternative
4384 config section name. Add a new flag to tolerate a missing config file
4385 and move code to CONF_modules_load_file().
4388 *) Support for crypto accelerator cards from Accelerated Encryption
4389 Processing, www.aep.ie. (Use engine 'aep')
4390 The support was copied from 0.9.6c [engine] and adapted/corrected
4391 to work with the new engine framework.
4392 [AEP Inc. and Richard Levitte]
4394 *) Support for SureWare crypto accelerator cards from Baltimore
4395 Technologies. (Use engine 'sureware')
4396 The support was copied from 0.9.6c [engine] and adapted
4397 to work with the new engine framework.
4400 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
4401 make the newer ENGINE framework commands for the CHIL engine work.
4402 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
4404 *) Make it possible to produce shared libraries on ReliantUNIX.
4405 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
4407 *) Add the configuration target debug-linux-ppro.
4408 Make 'openssl rsa' use the general key loading routines
4409 implemented in apps.c, and make those routines able to
4410 handle the key format FORMAT_NETSCAPE and the variant
4412 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4414 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4415 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4417 *) Add -keyform to rsautl, and document -engine.
4418 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
4420 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
4421 BIO_R_NO_SUCH_FILE error code rather than the generic
4422 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
4425 *) Add new functions
4427 ERR_peek_last_error_line
4428 ERR_peek_last_error_line_data.
4429 These are similar to
4432 ERR_peek_error_line_data,
4433 but report on the latest error recorded rather than the first one
4434 still in the error queue.
4435 [Ben Laurie, Bodo Moeller]
4437 *) default_algorithms option in ENGINE config module. This allows things
4439 default_algorithms = ALL
4440 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
4443 *) Prelminary ENGINE config module.
4446 *) New experimental application configuration code.
4449 *) Change the AES code to follow the same name structure as all other
4450 symmetric ciphers, and behave the same way. Move everything to
4451 the directory crypto/aes, thereby obsoleting crypto/rijndael.
4452 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4454 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
4455 [Ben Laurie and Theo de Raadt]
4457 *) Add option to output public keys in req command.
4458 [Massimiliano Pala madwolf@openca.org]
4460 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
4461 (up to about 10% better than before for P-192 and P-224).
4464 *) New functions/macros
4466 SSL_CTX_set_msg_callback(ctx, cb)
4467 SSL_CTX_set_msg_callback_arg(ctx, arg)
4468 SSL_set_msg_callback(ssl, cb)
4469 SSL_set_msg_callback_arg(ssl, arg)
4471 to request calling a callback function
4473 void cb(int write_p, int version, int content_type,
4474 const void *buf, size_t len, SSL *ssl, void *arg)
4476 whenever a protocol message has been completely received
4477 (write_p == 0) or sent (write_p == 1). Here 'version' is the
4478 protocol version according to which the SSL library interprets
4479 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
4480 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
4481 the content type as defined in the SSL 3.0/TLS 1.0 protocol
4482 specification (change_cipher_spec(20), alert(21), handshake(22)).
4483 'buf' and 'len' point to the actual message, 'ssl' to the
4484 SSL object, and 'arg' is the application-defined value set by
4485 SSL[_CTX]_set_msg_callback_arg().
4487 'openssl s_client' and 'openssl s_server' have new '-msg' options
4488 to enable a callback that displays all protocol messages.
4491 *) Change the shared library support so shared libraries are built as
4492 soon as the corresponding static library is finished, and thereby get
4493 openssl and the test programs linked against the shared library.
4494 This still only happens when the keyword "shard" has been given to
4495 the configuration scripts.
4497 NOTE: shared library support is still an experimental thing, and
4498 backward binary compatibility is still not guaranteed.
4499 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
4501 *) Add support for Subject Information Access extension.
4502 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4504 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
4505 additional bytes when new memory had to be allocated, not just
4506 when reusing an existing buffer.
4509 *) New command line and configuration option 'utf8' for the req command.
4510 This allows field values to be specified as UTF8 strings.
4513 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
4514 runs for the former and machine-readable output for the latter.
4517 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
4518 of the e-mail address in the DN (i.e., it will go into a certificate
4519 extension only). The new configuration file option 'email_in_dn = no'
4520 has the same effect.
4521 [Massimiliano Pala madwolf@openca.org]
4523 *) Change all functions with names starting with des_ to be starting
4524 with DES_ instead. Add wrappers that are compatible with libdes,
4525 but are named _ossl_old_des_*. Finally, add macros that map the
4526 des_* symbols to the corresponding _ossl_old_des_* if libdes
4527 compatibility is desired. If OpenSSL 0.9.6c compatibility is
4528 desired, the des_* symbols will be mapped to DES_*, with one
4531 Since we provide two compatibility mappings, the user needs to
4532 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
4533 compatibility is desired. The default (i.e., when that macro
4534 isn't defined) is OpenSSL 0.9.6c compatibility.
4536 There are also macros that enable and disable the support of old
4537 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
4538 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
4539 are defined, the default will apply: to support the old des routines.
4541 In either case, one must include openssl/des.h to get the correct
4542 definitions. Do not try to just include openssl/des_old.h, that
4545 NOTE: This is a major break of an old API into a new one. Software
4546 authors are encouraged to switch to the DES_ style functions. Some
4547 time in the future, des_old.h and the libdes compatibility functions
4548 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
4549 default), and then completely removed.
4552 *) Test for certificates which contain unsupported critical extensions.
4553 If such a certificate is found during a verify operation it is
4554 rejected by default: this behaviour can be overridden by either
4555 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
4556 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
4557 X509_supported_extension() has also been added which returns 1 if a
4558 particular extension is supported.
4561 *) Modify the behaviour of EVP cipher functions in similar way to digests
4562 to retain compatibility with existing code.
4565 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
4566 compatibility with existing code. In particular the 'ctx' parameter does
4567 not have to be to be initialized before the call to EVP_DigestInit() and
4568 it is tidied up after a call to EVP_DigestFinal(). New function
4569 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
4570 EVP_MD_CTX_copy() changed to not require the destination to be
4571 initialized valid and new function EVP_MD_CTX_copy_ex() added which
4572 requires the destination to be valid.
4574 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
4575 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
4578 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
4579 so that complete 'Handshake' protocol structures are kept in memory
4580 instead of overwriting 'msg_type' and 'length' with 'body' data.
4583 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
4584 [Massimo Santin via Richard Levitte]
4586 *) Major restructuring to the underlying ENGINE code. This includes
4587 reduction of linker bloat, separation of pure "ENGINE" manipulation
4588 (initialisation, etc) from functionality dealing with implementations
4589 of specific crypto iterfaces. This change also introduces integrated
4590 support for symmetric ciphers and digest implementations - so ENGINEs
4591 can now accelerate these by providing EVP_CIPHER and EVP_MD
4592 implementations of their own. This is detailed in crypto/engine/README
4593 as it couldn't be adequately described here. However, there are a few
4594 API changes worth noting - some RSA, DSA, DH, and RAND functions that
4595 were changed in the original introduction of ENGINE code have now
4596 reverted back - the hooking from this code to ENGINE is now a good
4597 deal more passive and at run-time, operations deal directly with
4598 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
4599 dereferencing through an ENGINE pointer any more. Also, the ENGINE
4600 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
4601 they were not being used by the framework as there is no concept of a
4602 BIGNUM_METHOD and they could not be generalised to the new
4603 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
4604 ENGINE_cpy() has been removed as it cannot be consistently defined in
4608 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
4611 *) Change mkdef.pl to sort symbols that get the same entry number,
4612 and make sure the automatically generated functions ERR_load_*
4613 become part of libeay.num as well.
4616 *) New function SSL_renegotiate_pending(). This returns true once
4617 renegotiation has been requested (either SSL_renegotiate() call
4618 or HelloRequest/ClientHello receveived from the peer) and becomes
4619 false once a handshake has been completed.
4620 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
4621 sends a HelloRequest, but does not ensure that a handshake takes
4622 place. SSL_renegotiate_pending() is useful for checking if the
4623 client has followed the request.)
4626 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
4627 By default, clients may request session resumption even during
4628 renegotiation (if session ID contexts permit); with this option,
4629 session resumption is possible only in the first handshake.
4631 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
4632 more bits available for options that should not be part of
4633 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
4636 *) Add some demos for certificate and certificate request creation.
4639 *) Make maximum certificate chain size accepted from the peer application
4640 settable (SSL*_get/set_max_cert_list()), as proposed by
4641 "Douglas E. Engert" <deengert@anl.gov>.
4644 *) Add support for shared libraries for Unixware-7
4645 (Boyd Lynn Gerber <gerberb@zenez.com>).
4648 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
4649 be done prior to destruction. Use this to unload error strings from
4650 ENGINEs that load their own error strings. NB: This adds two new API
4651 functions to "get" and "set" this destroy handler in an ENGINE.
4654 *) Alter all existing ENGINE implementations (except "openssl" and
4655 "openbsd") to dynamically instantiate their own error strings. This
4656 makes them more flexible to be built both as statically-linked ENGINEs
4657 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
4658 Also, add stub code to each that makes building them as self-contained
4659 shared-libraries easier (see README.ENGINE).
4662 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
4663 implementations into applications that are completely implemented in
4664 self-contained shared-libraries. The "dynamic" ENGINE exposes control
4665 commands that can be used to configure what shared-library to load and
4666 to control aspects of the way it is handled. Also, made an update to
4667 the README.ENGINE file that brings its information up-to-date and
4668 provides some information and instructions on the "dynamic" ENGINE
4669 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4672 *) Make it possible to unload ranges of ERR strings with a new
4673 "ERR_unload_strings" function.
4676 *) Add a copy() function to EVP_MD.
4679 *) Make EVP_MD routines take a context pointer instead of just the
4680 md_data void pointer.
4683 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4684 that the digest can only process a single chunk of data
4685 (typically because it is provided by a piece of
4686 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4687 is only going to provide a single chunk of data, and hence the
4688 framework needn't accumulate the data for oneshot drivers.
4691 *) As with "ERR", make it possible to replace the underlying "ex_data"
4692 functions. This change also alters the storage and management of global
4693 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4694 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4695 index counters. The API functions that use this state have been changed
4696 to take a "class_index" rather than pointers to the class's local STACK
4697 and counter, and there is now an API function to dynamically create new
4698 classes. This centralisation allows us to (a) plug a lot of the
4699 thread-safety problems that existed, and (b) makes it possible to clean
4700 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4701 such data would previously have always leaked in application code and
4702 workarounds were in place to make the memory debugging turn a blind eye
4703 to it. Application code that doesn't use this new function will still
4704 leak as before, but their memory debugging output will announce it now
4705 rather than letting it slide.
4707 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4708 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4709 has a return value to indicate success or failure.
4712 *) Make it possible to replace the underlying "ERR" functions such that the
4713 global state (2 LHASH tables and 2 locks) is only used by the "default"
4714 implementation. This change also adds two functions to "get" and "set"
4715 the implementation prior to it being automatically set the first time
4716 any other ERR function takes place. Ie. an application can call "get",
4717 pass the return value to a module it has just loaded, and that module
4718 can call its own "set" function using that value. This means the
4719 module's "ERR" operations will use (and modify) the error state in the
4720 application and not in its own statically linked copy of OpenSSL code.
4723 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4724 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4725 the operation, and provides a more encapsulated way for external code
4726 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4727 to use these functions rather than manually incrementing the counts.
4729 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4732 *) Add EVP test program.
4735 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4738 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4739 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4740 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4741 These allow a CRL to be built without having to access X509_CRL fields
4742 directly. Modify 'ca' application to use new functions.
4745 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4746 bug workarounds. Rollback attack detection is a security feature.
4747 The problem will only arise on OpenSSL servers when TLSv1 is not
4748 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4749 Software authors not wanting to support TLSv1 will have special reasons
4750 for their choice and can explicitly enable this option.
4751 [Bodo Moeller, Lutz Jaenicke]
4753 *) Rationalise EVP so it can be extended: don't include a union of
4754 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4755 (similar to those existing for EVP_CIPHER_CTX).
4760 EVP_MD_CTX_init(&md); /* new function call */
4761 EVP_DigestInit(&md, EVP_sha1());
4762 EVP_DigestUpdate(&md, in, len);
4763 EVP_DigestFinal(&md, out, NULL);
4764 EVP_MD_CTX_cleanup(&md); /* new function call */
4768 *) Make DES key schedule conform to the usual scheme, as well as
4769 correcting its structure. This means that calls to DES functions
4770 now have to pass a pointer to a des_key_schedule instead of a
4771 plain des_key_schedule (which was actually always a pointer
4774 des_key_schedule ks;
4776 des_set_key_checked(..., &ks);
4777 des_ncbc_encrypt(..., &ks, ...);
4779 (Note that a later change renames 'des_...' into 'DES_...'.)
4782 *) Initial reduction of linker bloat: the use of some functions, such as
4783 PEM causes large amounts of unused functions to be linked in due to
4784 poor organisation. For example pem_all.c contains every PEM function
4785 which has a knock on effect of linking in large amounts of (unused)
4786 ASN1 code. Grouping together similar functions and splitting unrelated
4787 functions prevents this.
4790 *) Cleanup of EVP macros.
4793 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4794 correct _ecb suffix.
4797 *) Add initial OCSP responder support to ocsp application. The
4798 revocation information is handled using the text based index
4799 use by the ca application. The responder can either handle
4800 requests generated internally, supplied in files (for example
4801 via a CGI script) or using an internal minimal server.
4804 *) Add configuration choices to get zlib compression for TLS.
4807 *) Changes to Kerberos SSL for RFC 2712 compliance:
4808 1. Implemented real KerberosWrapper, instead of just using
4809 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4810 2. Implemented optional authenticator field of KerberosWrapper.
4812 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4813 and authenticator structs; see crypto/krb5/.
4815 Generalized Kerberos calls to support multiple Kerberos libraries.
4816 [Vern Staats <staatsvr@asc.hpc.mil>,
4817 Jeffrey Altman <jaltman@columbia.edu>
4818 via Richard Levitte]
4820 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4821 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4822 values for each of the key sizes rather than having just
4823 parameters (and 'speed' generating keys each time).
4826 *) Speed up EVP routines.
4829 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4830 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4831 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4832 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4834 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4835 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4836 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4839 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4841 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4844 *) Added the OS2-EMX target.
4845 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4847 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4848 to support NCONF routines in extension code. New function CONF_set_nconf()
4849 to allow functions which take an NCONF to also handle the old LHASH
4850 structure: this means that the old CONF compatible routines can be
4851 retained (in particular wrt extensions) without having to duplicate the
4852 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4855 *) Enhance the general user interface with mechanisms for inner control
4856 and with possibilities to have yes/no kind of prompts.
4859 *) Change all calls to low level digest routines in the library and
4860 applications to use EVP. Add missing calls to HMAC_cleanup() and
4861 don't assume HMAC_CTX can be copied using memcpy().
4862 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4864 *) Add the possibility to control engines through control names but with
4865 arbitrary arguments instead of just a string.
4866 Change the key loaders to take a UI_METHOD instead of a callback
4867 function pointer. NOTE: this breaks binary compatibility with earlier
4868 versions of OpenSSL [engine].
4869 Adapt the nCipher code for these new conditions and add a card insertion
4873 *) Enhance the general user interface with mechanisms to better support
4874 dialog box interfaces, application-defined prompts, the possibility
4875 to use defaults (for example default passwords from somewhere else)
4876 and interrupts/cancellations.
4879 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4880 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4883 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4884 tidy up some unnecessarily weird code in 'sk_new()').
4885 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4887 *) Change the key loading routines for ENGINEs to use the same kind
4888 callback (pem_password_cb) as all other routines that need this
4892 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4893 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4894 than this minimum value is recommended.
4897 *) New random seeder for OpenVMS, using the system process statistics
4898 that are easily reachable.
4901 *) Windows apparently can't transparently handle global
4902 variables defined in DLLs. Initialisations such as:
4904 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4906 wont compile. This is used by the any applications that need to
4907 declare their own ASN1 modules. This was fixed by adding the option
4908 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4909 needed for static libraries under Win32.
4912 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4913 setting of purpose and trust fields. New X509_STORE trust and
4914 purpose functions and tidy up setting in other SSL functions.
4917 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4918 structure. These are inherited by X509_STORE_CTX when it is
4919 initialised. This allows various defaults to be set in the
4920 X509_STORE structure (such as flags for CRL checking and custom
4921 purpose or trust settings) for functions which only use X509_STORE_CTX
4922 internally such as S/MIME.
4924 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4925 trust settings if they are not set in X509_STORE. This allows X509_STORE
4926 purposes and trust (in S/MIME for example) to override any set by default.
4928 Add command line options for CRL checking to smime, s_client and s_server
4932 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4933 are set then the CRL is looked up in the X509_STORE structure and
4934 its validity and signature checked, then if the certificate is found
4935 in the CRL the verify fails with a revoked error.
4937 Various new CRL related callbacks added to X509_STORE_CTX structure.
4939 Command line options added to 'verify' application to support this.
4941 This needs some additional work, such as being able to handle multiple
4942 CRLs with different times, extension based lookup (rather than just
4943 by subject name) and ultimately more complete V2 CRL extension
4947 *) Add a general user interface API (crypto/ui/). This is designed
4948 to replace things like des_read_password and friends (backward
4949 compatibility functions using this new API are provided).
4950 The purpose is to remove prompting functions from the DES code
4951 section as well as provide for prompting through dialog boxes in
4952 a window system and the like.
4955 *) Add "ex_data" support to ENGINE so implementations can add state at a
4956 per-structure level rather than having to store it globally.
4959 *) Make it possible for ENGINE structures to be copied when retrieved by
4960 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4961 This causes the "original" ENGINE structure to act like a template,
4962 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4963 operational state can be localised to each ENGINE structure, despite the
4964 fact they all share the same "methods". New ENGINE structures returned in
4965 this case have no functional references and the return value is the single
4966 structural reference. This matches the single structural reference returned
4967 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4971 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4972 needs to match any other type at all we need to manually clear the
4976 *) Changes to the "openssl engine" utility to include;
4977 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4978 about an ENGINE's available control commands.
4979 - executing control commands from command line arguments using the
4980 '-pre' and '-post' switches. '-post' is only used if '-t' is
4981 specified and the ENGINE is successfully initialised. The syntax for
4982 the individual commands are colon-separated, for example;
4983 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4986 *) New dynamic control command support for ENGINEs. ENGINEs can now
4987 declare their own commands (numbers), names (strings), descriptions,
4988 and input types for run-time discovery by calling applications. A
4989 subset of these commands are implicitly classed as "executable"
4990 depending on their input type, and only these can be invoked through
4991 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4992 can be based on user input, config files, etc). The distinction is
4993 that "executable" commands cannot return anything other than a boolean
4994 result and can only support numeric or string input, whereas some
4995 discoverable commands may only be for direct use through
4996 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4997 pointers, or other custom uses. The "executable" commands are to
4998 support parameterisations of ENGINE behaviour that can be
4999 unambiguously defined by ENGINEs and used consistently across any
5000 OpenSSL-based application. Commands have been added to all the
5001 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
5002 control over shared-library paths without source code alterations.
5005 *) Changed all ENGINE implementations to dynamically allocate their
5006 ENGINEs rather than declaring them statically. Apart from this being
5007 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
5008 this also allows the implementations to compile without using the
5009 internal engine_int.h header.
5012 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
5013 'const' value. Any code that should be able to modify a RAND_METHOD
5014 should already have non-const pointers to it (ie. they should only
5015 modify their own ones).
5018 *) Made a variety of little tweaks to the ENGINE code.
5019 - "atalla" and "ubsec" string definitions were moved from header files
5020 to C code. "nuron" string definitions were placed in variables
5021 rather than hard-coded - allowing parameterisation of these values
5022 later on via ctrl() commands.
5023 - Removed unused "#if 0"'d code.
5024 - Fixed engine list iteration code so it uses ENGINE_free() to release
5025 structural references.
5026 - Constified the RAND_METHOD element of ENGINE structures.
5027 - Constified various get/set functions as appropriate and added
5028 missing functions (including a catch-all ENGINE_cpy that duplicates
5029 all ENGINE values onto a new ENGINE except reference counts/state).
5030 - Removed NULL parameter checks in get/set functions. Setting a method
5031 or function to NULL is a way of cancelling out a previously set
5032 value. Passing a NULL ENGINE parameter is just plain stupid anyway
5033 and doesn't justify the extra error symbols and code.
5034 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
5035 flags from engine_int.h to engine.h.
5036 - Changed prototypes for ENGINE handler functions (init(), finish(),
5037 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
5040 *) Implement binary inversion algorithm for BN_mod_inverse in addition
5041 to the algorithm using long division. The binary algorithm can be
5042 used only if the modulus is odd. On 32-bit systems, it is faster
5043 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
5044 roughly 5-15% for 256-bit moduli), so we use it only for moduli
5045 up to 450 bits. In 64-bit environments, the binary algorithm
5046 appears to be advantageous for much longer moduli; here we use it
5047 for moduli up to 2048 bits.
5050 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
5051 could not support the combine flag in choice fields.
5054 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
5055 extensions from a certificate request to the certificate.
5058 *) Allow multiple 'certopt' and 'nameopt' options to be separated
5059 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
5060 file: this allows the display of the certificate about to be
5061 signed to be customised, to allow certain fields to be included
5062 or excluded and extension details. The old system didn't display
5063 multicharacter strings properly, omitted fields not in the policy
5064 and couldn't display additional details such as extensions.
5067 *) Function EC_POINTs_mul for multiple scalar multiplication
5068 of an arbitrary number of elliptic curve points
5069 \sum scalars[i]*points[i],
5070 optionally including the generator defined for the EC_GROUP:
5071 scalar*generator + \sum scalars[i]*points[i].
5073 EC_POINT_mul is a simple wrapper function for the typical case
5074 that the point list has just one item (besides the optional
5078 *) First EC_METHODs for curves over GF(p):
5080 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
5081 operations and provides various method functions that can also
5082 operate with faster implementations of modular arithmetic.
5084 EC_GFp_mont_method() reuses most functions that are part of
5085 EC_GFp_simple_method, but uses Montgomery arithmetic.
5087 [Bodo Moeller; point addition and point doubling
5088 implementation directly derived from source code provided by
5089 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
5091 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
5092 crypto/ec/ec_lib.c):
5094 Curves are EC_GROUP objects (with an optional group generator)
5095 based on EC_METHODs that are built into the library.
5097 Points are EC_POINT objects based on EC_GROUP objects.
5099 Most of the framework would be able to handle curves over arbitrary
5100 finite fields, but as there are no obvious types for fields other
5101 than GF(p), some functions are limited to that for now.
5104 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
5105 that the file contains a complete HTTP response.
5108 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
5109 change the def and num file printf format specifier from "%-40sXXX"
5110 to "%-39s XXX". The latter will always guarantee a space after the
5111 field while the former will cause them to run together if the field
5112 is 40 of more characters long.
5115 *) Constify the cipher and digest 'method' functions and structures
5116 and modify related functions to take constant EVP_MD and EVP_CIPHER
5120 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
5121 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
5124 *) Modify EVP_Digest*() routines so they now return values. Although the
5125 internal software routines can never fail additional hardware versions
5129 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
5131 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
5132 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
5135 ERR_R_NESTED_ASN1_ERROR
5137 ERR_R_MISSING_ASN1_EOS
5138 were 4 .. 9, conflicting with
5139 ERR_LIB_RSA (= ERR_R_RSA_LIB)
5141 ERR_LIB_PEM (= ERR_R_PEM_LIB).
5142 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
5144 Add new error code 'ERR_R_INTERNAL_ERROR'.
5147 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
5151 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
5152 sets the subject name for a new request or supersedes the
5153 subject name in a given request. Formats that can be parsed are
5154 'CN=Some Name, OU=myOU, C=IT'
5156 'CN=Some Name/OU=myOU/C=IT'.
5158 Add options '-batch' and '-verbose' to 'openssl req'.
5159 [Massimiliano Pala <madwolf@hackmasters.net>]
5161 *) Introduce the possibility to access global variables through
5162 functions on platform were that's the best way to handle exporting
5163 global variables in shared libraries. To enable this functionality,
5164 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
5165 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
5166 is normally done by Configure or something similar).
5168 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
5169 in the source file (foo.c) like this:
5171 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
5172 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
5174 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
5175 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
5177 OPENSSL_DECLARE_GLOBAL(int,foo);
5178 #define foo OPENSSL_GLOBAL_REF(foo)
5179 OPENSSL_DECLARE_GLOBAL(double,bar);
5180 #define bar OPENSSL_GLOBAL_REF(bar)
5182 The #defines are very important, and therefore so is including the
5183 header file everywhere where the defined globals are used.
5185 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
5186 of ASN.1 items, but that structure is a bit different.
5188 The largest change is in util/mkdef.pl which has been enhanced with
5189 better and easier to understand logic to choose which symbols should
5190 go into the Windows .def files as well as a number of fixes and code
5191 cleanup (among others, algorithm keywords are now sorted
5192 lexicographically to avoid constant rewrites).
5195 *) In BN_div() keep a copy of the sign of 'num' before writing the
5196 result to 'rm' because if rm==num the value will be overwritten
5197 and produce the wrong result if 'num' is negative: this caused
5198 problems with BN_mod() and BN_nnmod().
5201 *) Function OCSP_request_verify(). This checks the signature on an
5202 OCSP request and verifies the signer certificate. The signer
5203 certificate is just checked for a generic purpose and OCSP request
5207 *) Add OCSP_check_validity() function to check the validity of OCSP
5208 responses. OCSP responses are prepared in real time and may only
5209 be a few seconds old. Simply checking that the current time lies
5210 between thisUpdate and nextUpdate max reject otherwise valid responses
5211 caused by either OCSP responder or client clock inaccuracy. Instead
5212 we allow thisUpdate and nextUpdate to fall within a certain period of
5213 the current time. The age of the response can also optionally be
5214 checked. Two new options -validity_period and -status_age added to
5218 *) If signature or public key algorithm is unrecognized print out its
5219 OID rather that just UNKNOWN.
5222 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
5223 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
5224 ID to be generated from the issuer certificate alone which can then be
5225 passed to OCSP_id_issuer_cmp().
5228 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
5229 ASN1 modules to export functions returning ASN1_ITEM pointers
5230 instead of the ASN1_ITEM structures themselves. This adds several
5231 new macros which allow the underlying ASN1 function/structure to
5232 be accessed transparently. As a result code should not use ASN1_ITEM
5233 references directly (such as &X509_it) but instead use the relevant
5234 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
5235 use of the new ASN1 code on platforms where exporting structures
5236 is problematical (for example in shared libraries) but exporting
5237 functions returning pointers to structures is not.
5240 *) Add support for overriding the generation of SSL/TLS session IDs.
5241 These callbacks can be registered either in an SSL_CTX or per SSL.
5242 The purpose of this is to allow applications to control, if they wish,
5243 the arbitrary values chosen for use as session IDs, particularly as it
5244 can be useful for session caching in multiple-server environments. A
5245 command-line switch for testing this (and any client code that wishes
5246 to use such a feature) has been added to "s_server".
5247 [Geoff Thorpe, Lutz Jaenicke]
5249 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
5250 of the form '#if defined(...) || defined(...) || ...' and
5251 '#if !defined(...) && !defined(...) && ...'. This also avoids
5252 the growing number of special cases it was previously handling.
5255 *) Make all configuration macros available for application by making
5256 sure they are available in opensslconf.h, by giving them names starting
5257 with "OPENSSL_" to avoid conflicts with other packages and by making
5258 sure e_os2.h will cover all platform-specific cases together with
5260 Additionally, it is now possible to define configuration/platform-
5261 specific names (called "system identities"). In the C code, these
5262 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
5263 macro with the name beginning with "OPENSSL_SYS_", which is determined
5264 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
5268 *) New option -set_serial to 'req' and 'x509' this allows the serial
5269 number to use to be specified on the command line. Previously self
5270 signed certificates were hard coded with serial number 0 and the
5271 CA options of 'x509' had to use a serial number in a file which was
5275 *) New options to 'ca' utility to support V2 CRL entry extensions.
5276 Currently CRL reason, invalidity date and hold instruction are
5277 supported. Add new CRL extensions to V3 code and some new objects.
5280 *) New function EVP_CIPHER_CTX_set_padding() this is used to
5281 disable standard block padding (aka PKCS#5 padding) in the EVP
5282 API, which was previously mandatory. This means that the data is
5283 not padded in any way and so the total length much be a multiple
5284 of the block size, otherwise an error occurs.
5287 *) Initial (incomplete) OCSP SSL support.
5290 *) New function OCSP_parse_url(). This splits up a URL into its host,
5291 port and path components: primarily to parse OCSP URLs. New -url
5292 option to ocsp utility.
5295 *) New nonce behavior. The return value of OCSP_check_nonce() now
5296 reflects the various checks performed. Applications can decide
5297 whether to tolerate certain situations such as an absent nonce
5298 in a response when one was present in a request: the ocsp application
5299 just prints out a warning. New function OCSP_add1_basic_nonce()
5300 this is to allow responders to include a nonce in a response even if
5301 the request is nonce-less.
5304 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
5305 skipped when using openssl x509 multiple times on a single input file,
5306 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
5309 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
5310 set string type: to handle setting ASN1_TIME structures. Fix ca
5311 utility to correctly initialize revocation date of CRLs.
5314 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
5315 the clients preferred ciphersuites and rather use its own preferences.
5316 Should help to work around M$ SGC (Server Gated Cryptography) bug in
5317 Internet Explorer by ensuring unchanged hash method during stepup.
5318 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
5321 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
5322 to aes and add a new 'exist' option to print out symbols that don't
5326 *) Additional options to ocsp utility to allow flags to be set and
5327 additional certificates supplied.
5330 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
5331 OCSP client a number of certificate to only verify the response
5335 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
5336 handle the new API. Currently only ECB, CBC modes supported. Add new
5339 Add TLS AES ciphersuites as described in RFC3268, "Advanced
5340 Encryption Standard (AES) Ciphersuites for Transport Layer
5341 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
5342 not enabled by default and were not part of the "ALL" ciphersuite
5343 alias because they were not yet official; they could be
5344 explicitly requested by specifying the "AESdraft" ciphersuite
5345 group alias. In the final release of OpenSSL 0.9.7, the group
5346 alias is called "AES" and is part of "ALL".)
5347 [Ben Laurie, Steve Henson, Bodo Moeller]
5349 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
5350 request to response.
5353 *) Functions for OCSP responders. OCSP_request_onereq_count(),
5354 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
5355 extract information from a certificate request. OCSP_response_create()
5356 creates a response and optionally adds a basic response structure.
5357 OCSP_basic_add1_status() adds a complete single response to a basic
5358 response and returns the OCSP_SINGLERESP structure just added (to allow
5359 extensions to be included for example). OCSP_basic_add1_cert() adds a
5360 certificate to a basic response and OCSP_basic_sign() signs a basic
5361 response with various flags. New helper functions ASN1_TIME_check()
5362 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
5363 (converts ASN1_TIME to GeneralizedTime).
5366 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
5367 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
5368 structure from a certificate. X509_pubkey_digest() digests the public_key
5369 contents: this is used in various key identifiers.
5372 *) Make sk_sort() tolerate a NULL argument.
5373 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
5375 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
5376 passed by the function are trusted implicitly. If any of them signed the
5377 response then it is assumed to be valid and is not verified.
5380 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
5381 to data. This was previously part of the PKCS7 ASN1 code. This
5382 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
5383 [Steve Henson, reported by Kenneth R. Robinette
5384 <support@securenetterm.com>]
5386 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
5387 routines: without these tracing memory leaks is very painful.
5388 Fix leaks in PKCS12 and PKCS7 routines.
5391 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
5392 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
5393 effectively meant GeneralizedTime would never be used. Now it
5394 is initialised to -1 but X509_time_adj() now has to check the value
5395 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
5396 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
5397 [Steve Henson, reported by Kenneth R. Robinette
5398 <support@securenetterm.com>]
5400 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
5401 result in a zero length in the ASN1_INTEGER structure which was
5402 not consistent with the structure when d2i_ASN1_INTEGER() was used
5403 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
5404 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
5405 where it did not print out a minus for negative ASN1_INTEGER.
5408 *) Add summary printout to ocsp utility. The various functions which
5409 convert status values to strings have been renamed to:
5410 OCSP_response_status_str(), OCSP_cert_status_str() and
5411 OCSP_crl_reason_str() and are no longer static. New options
5412 to verify nonce values and to disable verification. OCSP response
5413 printout format cleaned up.
5416 *) Add additional OCSP certificate checks. These are those specified
5417 in RFC2560. This consists of two separate checks: the CA of the
5418 certificate being checked must either be the OCSP signer certificate
5419 or the issuer of the OCSP signer certificate. In the latter case the
5420 OCSP signer certificate must contain the OCSP signing extended key
5421 usage. This check is performed by attempting to match the OCSP
5422 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
5423 in the OCSP_CERTID structures of the response.
5426 *) Initial OCSP certificate verification added to OCSP_basic_verify()
5427 and related routines. This uses the standard OpenSSL certificate
5428 verify routines to perform initial checks (just CA validity) and
5429 to obtain the certificate chain. Then additional checks will be
5430 performed on the chain. Currently the root CA is checked to see
5431 if it is explicitly trusted for OCSP signing. This is used to set
5432 a root CA as a global signing root: that is any certificate that
5433 chains to that CA is an acceptable OCSP signing certificate.
5436 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
5437 extensions from a separate configuration file.
5438 As when reading extensions from the main configuration file,
5439 the '-extensions ...' option may be used for specifying the
5441 [Massimiliano Pala <madwolf@comune.modena.it>]
5443 *) New OCSP utility. Allows OCSP requests to be generated or
5444 read. The request can be sent to a responder and the output
5445 parsed, outputed or printed in text form. Not complete yet:
5446 still needs to check the OCSP response validity.
5449 *) New subcommands for 'openssl ca':
5450 'openssl ca -status <serial>' prints the status of the cert with
5451 the given serial number (according to the index file).
5452 'openssl ca -updatedb' updates the expiry status of certificates
5454 [Massimiliano Pala <madwolf@comune.modena.it>]
5456 *) New '-newreq-nodes' command option to CA.pl. This is like
5457 '-newreq', but calls 'openssl req' with the '-nodes' option
5458 so that the resulting key is not encrypted.
5459 [Damien Miller <djm@mindrot.org>]
5461 *) New configuration for the GNU Hurd.
5462 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
5464 *) Initial code to implement OCSP basic response verify. This
5465 is currently incomplete. Currently just finds the signer's
5466 certificate and verifies the signature on the response.
5469 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
5470 value of OPENSSLDIR. This is available via the new '-d' option
5471 to 'openssl version', and is also included in 'openssl version -a'.
5474 *) Allowing defining memory allocation callbacks that will be given
5475 file name and line number information in additional arguments
5476 (a const char* and an int). The basic functionality remains, as
5477 well as the original possibility to just replace malloc(),
5478 realloc() and free() by functions that do not know about these
5479 additional arguments. To register and find out the current
5480 settings for extended allocation functions, the following
5481 functions are provided:
5483 CRYPTO_set_mem_ex_functions
5484 CRYPTO_set_locked_mem_ex_functions
5485 CRYPTO_get_mem_ex_functions
5486 CRYPTO_get_locked_mem_ex_functions
5488 These work the same way as CRYPTO_set_mem_functions and friends.
5489 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
5490 extended allocation function is enabled.
5491 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
5492 a conventional allocation function is enabled.
5493 [Richard Levitte, Bodo Moeller]
5495 *) Finish off removing the remaining LHASH function pointer casts.
5496 There should no longer be any prototype-casting required when using
5497 the LHASH abstraction, and any casts that remain are "bugs". See
5498 the callback types and macros at the head of lhash.h for details
5499 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
5502 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
5503 If /dev/[u]random devices are not available or do not return enough
5504 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
5506 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
5507 /etc/entropy will be queried once each in this sequence, quering stops
5508 when enough entropy was collected without querying more sockets.
5511 *) Change the Unix RAND_poll() variant to be able to poll several
5512 random devices, as specified by DEVRANDOM, until a sufficient amount
5513 of data has been collected. We spend at most 10 ms on each file
5514 (select timeout) and read in non-blocking mode. DEVRANDOM now
5515 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
5516 (previously it was just the string "/dev/urandom"), so on typical
5517 platforms the 10 ms delay will never occur.
5518 Also separate out the Unix variant to its own file, rand_unix.c.
5519 For VMS, there's a currently-empty rand_vms.c.
5522 *) Move OCSP client related routines to ocsp_cl.c. These
5523 provide utility functions which an application needing
5524 to issue a request to an OCSP responder and analyse the
5525 response will typically need: as opposed to those which an
5526 OCSP responder itself would need which will be added later.
5528 OCSP_request_sign() signs an OCSP request with an API similar
5529 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
5530 response. OCSP_response_get1_basic() extracts basic response
5531 from response. OCSP_resp_find_status(): finds and extracts status
5532 information from an OCSP_CERTID structure (which will be created
5533 when the request structure is built). These are built from lower
5534 level functions which work on OCSP_SINGLERESP structures but
5535 wont normally be used unless the application wishes to examine
5536 extensions in the OCSP response for example.
5538 Replace nonce routines with a pair of functions.
5539 OCSP_request_add1_nonce() adds a nonce value and optionally
5540 generates a random value. OCSP_check_nonce() checks the
5541 validity of the nonce in an OCSP response.
5544 *) Change function OCSP_request_add() to OCSP_request_add0_id().
5545 This doesn't copy the supplied OCSP_CERTID and avoids the
5546 need to free up the newly created id. Change return type
5547 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
5548 This can then be used to add extensions to the request.
5549 Deleted OCSP_request_new(), since most of its functionality
5550 is now in OCSP_REQUEST_new() (and the case insensitive name
5551 clash) apart from the ability to set the request name which
5552 will be added elsewhere.
5555 *) Update OCSP API. Remove obsolete extensions argument from
5556 various functions. Extensions are now handled using the new
5557 OCSP extension code. New simple OCSP HTTP function which
5558 can be used to send requests and parse the response.
5561 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
5562 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
5563 uses the special reorder version of SET OF to sort the attributes
5564 and reorder them to match the encoded order. This resolves a long
5565 standing problem: a verify on a PKCS7 structure just after signing
5566 it used to fail because the attribute order did not match the
5567 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
5568 it uses the received order. This is necessary to tolerate some broken
5569 software that does not order SET OF. This is handled by encoding
5570 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
5571 to produce the required SET OF.
5574 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
5575 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
5576 files to get correct declarations of the ASN.1 item variables.
5579 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
5580 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
5581 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
5582 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
5583 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
5584 ASN1_ITEM and no wrapper functions.
5587 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
5588 replace the old function pointer based I/O routines. Change most of
5589 the *_d2i_bio() and *_d2i_fp() functions to use these.
5592 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
5593 lines, recognice more "algorithms" that can be deselected, and make
5594 it complain about algorithm deselection that isn't recognised.
5597 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
5598 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
5599 to use new functions. Add NO_ASN1_OLD which can be set to remove
5600 some old style ASN1 functions: this can be used to determine if old
5601 code will still work when these eventually go away.
5604 *) New extension functions for OCSP structures, these follow the
5605 same conventions as certificates and CRLs.
5608 *) New function X509V3_add1_i2d(). This automatically encodes and
5609 adds an extension. Its behaviour can be customised with various
5610 flags to append, replace or delete. Various wrappers added for
5611 certifcates and CRLs.
5614 *) Fix to avoid calling the underlying ASN1 print routine when
5615 an extension cannot be parsed. Correct a typo in the
5616 OCSP_SERVICELOC extension. Tidy up print OCSP format.
5619 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
5620 entries for variables.
5623 *) Add functionality to apps/openssl.c for detecting locking
5624 problems: As the program is single-threaded, all we have
5625 to do is register a locking callback using an array for
5626 storing which locks are currently held by the program.
5629 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
5630 SSL_get_ex_data_X509_STORE_idx(), which is used in
5631 ssl_verify_cert_chain() and thus can be called at any time
5632 during TLS/SSL handshakes so that thread-safety is essential.
5633 Unfortunately, the ex_data design is not at all suited
5634 for multi-threaded use, so it probably should be abolished.
5637 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
5638 [Broadcom, tweaked and integrated by Geoff Thorpe]
5640 *) Move common extension printing code to new function
5641 X509V3_print_extensions(). Reorganise OCSP print routines and
5642 implement some needed OCSP ASN1 functions. Add OCSP extensions.
5645 *) New function X509_signature_print() to remove duplication in some
5649 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
5650 set (this was treated exactly the same as SET OF previously). This
5651 is used to reorder the STACK representing the structure to match the
5652 encoding. This will be used to get round a problem where a PKCS7
5653 structure which was signed could not be verified because the STACK
5654 order did not reflect the encoded order.
5657 *) Reimplement the OCSP ASN1 module using the new code.
5660 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
5661 for its ASN1 operations. The old style function pointers still exist
5662 for now but they will eventually go away.
5665 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
5666 completely replaces the old ASN1 functionality with a table driven
5667 encoder and decoder which interprets an ASN1_ITEM structure describing
5668 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5669 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5670 has also been converted to the new form.
5673 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5674 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5675 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5676 for negative moduli.
5679 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5680 of not touching the result's sign bit.
5683 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5687 *) Changed the LHASH code to use prototypes for callbacks, and created
5688 macros to declare and implement thin (optionally static) functions
5689 that provide type-safety and avoid function pointer casting for the
5690 type-specific callbacks.
5693 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5695 [Veers Staats <staatsvr@asc.hpc.mil>,
5696 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5698 *) Reformat the FAQ so the different questions and answers can be divided
5699 in sections depending on the subject.
5702 *) Have the zlib compression code load ZLIB.DLL dynamically under
5706 *) New function BN_mod_sqrt for computing square roots modulo a prime
5707 (using the probabilistic Tonelli-Shanks algorithm unless
5708 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5709 be handled deterministically).
5710 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5712 *) Make BN_mod_inverse faster by explicitly handling small quotients
5713 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5714 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5717 *) New function BN_kronecker.
5720 *) Fix BN_gcd so that it works on negative inputs; the result is
5721 positive unless both parameters are zero.
5722 Previously something reasonably close to an infinite loop was
5723 possible because numbers could be growing instead of shrinking
5724 in the implementation of Euclid's algorithm.
5727 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5728 sign of the number in question.
5730 Fix BN_is_word(a,w) to work correctly for w == 0.
5732 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5733 because its test if the absolute value of 'a' equals 'w'.
5734 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5735 it exists mostly for use in the implementations of BN_is_zero(),
5736 BN_is_one(), and BN_is_word().
5739 *) New function BN_swap.
5742 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5743 the exponentiation functions are more likely to produce reasonable
5744 results on negative inputs.
5747 *) Change BN_mod_mul so that the result is always non-negative.
5748 Previously, it could be negative if one of the factors was negative;
5749 I don't think anyone really wanted that behaviour.
5752 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5753 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5754 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5755 and add new functions:
5764 BN_mod_lshift1_quick
5768 These functions always generate non-negative results.
5770 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5771 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5773 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5774 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5775 be reduced modulo m.
5776 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5779 The following entry accidentily appeared in the CHANGES file
5780 distributed with OpenSSL 0.9.7. The modifications described in
5781 it do *not* apply to OpenSSL 0.9.7.
5783 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5784 was actually never needed) and in BN_mul(). The removal in BN_mul()
5785 required a small change in bn_mul_part_recursive() and the addition
5786 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5787 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5788 bn_sub_words() and bn_add_words() except they take arrays with
5793 *) In 'openssl passwd', verify passwords read from the terminal
5794 unless the '-salt' option is used (which usually means that
5795 verification would just waste user's time since the resulting
5796 hash is going to be compared with some given password hash)
5797 or the new '-noverify' option is used.
5799 This is an incompatible change, but it does not affect
5800 non-interactive use of 'openssl passwd' (passwords on the command
5801 line, '-stdin' option, '-in ...' option) and thus should not
5805 *) Remove all references to RSAref, since there's no more need for it.
5808 *) Make DSO load along a path given through an environment variable
5809 (SHLIB_PATH) with shl_load().
5812 *) Constify the ENGINE code as a result of BIGNUM constification.
5813 Also constify the RSA code and most things related to it. In a
5814 few places, most notable in the depth of the ASN.1 code, ugly
5815 casts back to non-const were required (to be solved at a later
5819 *) Make it so the openssl application has all engines loaded by default.
5822 *) Constify the BIGNUM routines a little more.
5825 *) Add the following functions:
5827 ENGINE_load_cswift()
5829 ENGINE_load_atalla()
5831 ENGINE_load_builtin_engines()
5833 That way, an application can itself choose if external engines that
5834 are built-in in OpenSSL shall ever be used or not. The benefit is
5835 that applications won't have to be linked with libdl or other dso
5836 libraries unless it's really needed.
5838 Changed 'openssl engine' to load all engines on demand.
5839 Changed the engine header files to avoid the duplication of some
5840 declarations (they differed!).
5843 *) 'openssl engine' can now list capabilities.
5846 *) Better error reporting in 'openssl engine'.
5849 *) Never call load_dh_param(NULL) in s_server.
5852 *) Add engine application. It can currently list engines by name and
5853 identity, and test if they are actually available.
5856 *) Improve RPM specification file by forcing symbolic linking and making
5857 sure the installed documentation is also owned by root.root.
5858 [Damien Miller <djm@mindrot.org>]
5860 *) Give the OpenSSL applications more possibilities to make use of
5861 keys (public as well as private) handled by engines.
5864 *) Add OCSP code that comes from CertCo.
5867 *) Add VMS support for the Rijndael code.
5870 *) Added untested support for Nuron crypto accelerator.
5873 *) Add support for external cryptographic devices. This code was
5874 previously distributed separately as the "engine" branch.
5875 [Geoff Thorpe, Richard Levitte]
5877 *) Rework the filename-translation in the DSO code. It is now possible to
5878 have far greater control over how a "name" is turned into a filename
5879 depending on the operating environment and any oddities about the
5880 different shared library filenames on each system.
5883 *) Support threads on FreeBSD-elf in Configure.
5886 *) Fix for SHA1 assembly problem with MASM: it produces
5887 warnings about corrupt line number information when assembling
5888 with debugging information. This is caused by the overlapping
5890 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5893 NCONF_get_number() has no error checking at all. As a replacement,
5894 NCONF_get_number_e() is defined (_e for "error checking") and is
5895 promoted strongly. The old NCONF_get_number is kept around for
5896 binary backward compatibility.
5897 Make it possible for methods to load from something other than a BIO,
5898 by providing a function pointer that is given a name instead of a BIO.
5899 For example, this could be used to load configuration data from an
5903 *) Fix for non blocking accept BIOs. Added new I/O special reason
5904 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5905 with non blocking I/O was not possible because no retry code was
5906 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5910 *) Added the beginnings of Rijndael support.
5913 *) Fix for bug in DirectoryString mask setting. Add support for
5914 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5915 to allow certificate printing to more controllable, additional
5916 'certopt' option to 'x509' to allow new printing options to be
5920 *) Clean old EAY MD5 hack from e_os.h.
5923 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5925 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5926 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5927 [Joe Orton, Steve Henson]
5929 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5931 *) Fix additional bug revealed by the NISCC test suite:
5933 Stop bug triggering large recursion when presented with
5934 certain ASN.1 tags (CVE-2003-0851)
5937 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5939 *) Fix various bugs revealed by running the NISCC test suite:
5941 Stop out of bounds reads in the ASN1 code when presented with
5942 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5944 If verify callback ignores invalid public key errors don't try to check
5945 certificate signature with the NULL public key.
5949 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5950 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5954 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5955 extra data after the compression methods not only for TLS 1.0
5956 but also for SSL 3.0 (as required by the specification).
5957 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5959 *) Change X509_certificate_type() to mark the key as exported/exportable
5960 when it's 512 *bits* long, not 512 bytes.
5963 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5965 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5966 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5967 a protocol version number mismatch like a decryption error
5968 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5971 *) Turn on RSA blinding by default in the default implementation
5972 to avoid a timing attack. Applications that don't want it can call
5973 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5974 They would be ill-advised to do so in most cases.
5975 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5977 *) Change RSA blinding code so that it works when the PRNG is not
5978 seeded (in this case, the secret RSA exponent is abused as
5979 an unpredictable seed -- if it is not unpredictable, there
5980 is no point in blinding anyway). Make RSA blinding thread-safe
5981 by remembering the creator's thread ID in rsa->blinding and
5982 having all other threads use local one-time blinding factors
5983 (this requires more computation than sharing rsa->blinding, but
5984 avoids excessive locking; and if an RSA object is not shared
5985 between threads, blinding will still be very fast).
5988 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5990 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5991 via timing by performing a MAC computation even if incorrrect
5992 block cipher padding has been found. This is a countermeasure
5993 against active attacks where the attacker has to distinguish
5994 between bad padding and a MAC verification error. (CVE-2003-0078)
5996 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5997 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5998 Martin Vuagnoux (EPFL, Ilion)]
6000 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
6002 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
6003 memory from it's contents. This is done with a counter that will
6004 place alternating values in each byte. This can be used to solve
6005 two issues: 1) the removal of calls to memset() by highly optimizing
6006 compilers, and 2) cleansing with other values than 0, since those can
6007 be read through on certain media, for example a swap space on disk.
6010 *) Bugfix: client side session caching did not work with external caching,
6011 because the session->cipher setting was not restored when reloading
6012 from the external cache. This problem was masked, when
6013 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
6014 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
6017 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
6018 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
6019 [Zeev Lieber <zeev-l@yahoo.com>]
6021 *) Undo an undocumented change introduced in 0.9.6e which caused
6022 repeated calls to OpenSSL_add_all_ciphers() and
6023 OpenSSL_add_all_digests() to be ignored, even after calling
6027 *) Change the default configuration reader to deal with last line not
6028 being properly terminated.
6031 *) Change X509_NAME_cmp() so it applies the special rules on handling
6032 DN values that are of type PrintableString, as well as RDNs of type
6033 emailAddress where the value has the type ia5String.
6034 [stefank@valicert.com via Richard Levitte]
6036 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
6037 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
6038 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
6039 the bitwise-OR of the two for use by the majority of applications
6040 wanting this behaviour, and update the docs. The documented
6041 behaviour and actual behaviour were inconsistent and had been
6042 changing anyway, so this is more a bug-fix than a behavioural
6044 [Geoff Thorpe, diagnosed by Nadav Har'El]
6046 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
6047 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
6050 *) Fix initialization code race conditions in
6051 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
6052 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
6053 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
6054 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
6055 ssl2_get_cipher_by_char(),
6056 ssl3_get_cipher_by_char().
6057 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
6059 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
6060 the cached sessions are flushed, as the remove_cb() might use ex_data
6061 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
6062 (see [openssl.org #212]).
6063 [Geoff Thorpe, Lutz Jaenicke]
6065 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
6066 length, instead of the encoding length to d2i_ASN1_OBJECT.
6069 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
6071 *) [In 0.9.6g-engine release:]
6072 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
6073 [Lynn Gazis <lgazis@rainbow.com>]
6075 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
6077 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
6078 and get fix the header length calculation.
6079 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
6080 Alon Kantor <alonk@checkpoint.com> (and others),
6083 *) Use proper error handling instead of 'assertions' in buffer
6084 overflow checks added in 0.9.6e. This prevents DoS (the
6085 assertions could call abort()).
6086 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
6088 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
6090 *) Add various sanity checks to asn1_get_length() to reject
6091 the ASN1 length bytes if they exceed sizeof(long), will appear
6092 negative or the content length exceeds the length of the
6094 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
6096 *) Fix cipher selection routines: ciphers without encryption had no flags
6097 for the cipher strength set and where therefore not handled correctly
6098 by the selection routines (PR #130).
6101 *) Fix EVP_dsa_sha macro.
6105 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
6106 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
6107 that was added in OpenSSL 0.9.6d.
6109 As the countermeasure turned out to be incompatible with some
6110 broken SSL implementations, the new option is part of SSL_OP_ALL.
6111 SSL_OP_ALL is usually employed when compatibility with weird SSL
6112 implementations is desired (e.g. '-bugs' option to 's_client' and
6113 's_server'), so the new option is automatically set in many
6117 *) Changes in security patch:
6119 Changes marked "(CHATS)" were sponsored by the Defense Advanced
6120 Research Projects Agency (DARPA) and Air Force Research Laboratory,
6121 Air Force Materiel Command, USAF, under agreement number
6124 *) Add various sanity checks to asn1_get_length() to reject
6125 the ASN1 length bytes if they exceed sizeof(long), will appear
6126 negative or the content length exceeds the length of the
6127 supplied buffer. (CVE-2002-0659)
6128 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
6130 *) Assertions for various potential buffer overflows, not known to
6132 [Ben Laurie (CHATS)]
6134 *) Various temporary buffers to hold ASCII versions of integers were
6135 too small for 64 bit platforms. (CVE-2002-0655)
6136 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
6138 *) Remote buffer overflow in SSL3 protocol - an attacker could
6139 supply an oversized session ID to a client. (CVE-2002-0656)
6140 [Ben Laurie (CHATS)]
6142 *) Remote buffer overflow in SSL2 protocol - an attacker could
6143 supply an oversized client master key. (CVE-2002-0656)
6144 [Ben Laurie (CHATS)]
6146 Changes between 0.9.6c and 0.9.6d [9 May 2002]
6148 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
6149 encoded as NULL) with id-dsa-with-sha1.
6150 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
6152 *) Check various X509_...() return values in apps/req.c.
6153 [Nils Larsch <nla@trustcenter.de>]
6155 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
6156 an end-of-file condition would erronously be flagged, when the CRLF
6157 was just at the end of a processed block. The bug was discovered when
6158 processing data through a buffering memory BIO handing the data to a
6159 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
6160 <ptsekov@syntrex.com> and Nedelcho Stanev.
6163 *) Implement a countermeasure against a vulnerability recently found
6164 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
6165 before application data chunks to avoid the use of known IVs
6166 with data potentially chosen by the attacker.
6169 *) Fix length checks in ssl3_get_client_hello().
6172 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
6173 to prevent ssl3_read_internal() from incorrectly assuming that
6174 ssl3_read_bytes() found application data while handshake
6175 processing was enabled when in fact s->s3->in_read_app_data was
6176 merely automatically cleared during the initial handshake.
6177 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
6179 *) Fix object definitions for Private and Enterprise: they were not
6180 recognized in their shortname (=lowercase) representation. Extend
6181 obj_dat.pl to issue an error when using undefined keywords instead
6182 of silently ignoring the problem (Svenning Sorensen
6183 <sss@sss.dnsalias.net>).
6186 *) Fix DH_generate_parameters() so that it works for 'non-standard'
6187 generators, i.e. generators other than 2 and 5. (Previously, the
6188 code did not properly initialise the 'add' and 'rem' values to
6189 BN_generate_prime().)
6191 In the new general case, we do not insist that 'generator' is
6192 actually a primitive root: This requirement is rather pointless;
6193 a generator of the order-q subgroup is just as good, if not
6197 *) Map new X509 verification errors to alerts. Discovered and submitted by
6198 Tom Wu <tom@arcot.com>.
6201 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
6202 returning non-zero before the data has been completely received
6203 when using non-blocking I/O.
6204 [Bodo Moeller; problem pointed out by John Hughes]
6206 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
6207 [Ben Laurie, Lutz Jaenicke]
6209 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
6210 Yoram Zahavi <YoramZ@gilian.com>).
6213 *) Add information about CygWin 1.3 and on, and preserve proper
6214 configuration for the versions before that.
6215 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
6217 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
6218 check whether we deal with a copy of a session and do not delete from
6219 the cache in this case. Problem reported by "Izhar Shoshani Levi"
6220 <izhar@checkpoint.com>.
6223 *) Do not store session data into the internal session cache, if it
6224 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
6225 flag is set). Proposed by Aslam <aslam@funk.com>.
6228 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
6232 *) [In 0.9.6d-engine release:]
6233 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
6234 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
6236 *) Add the configuration target linux-s390x.
6237 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
6239 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
6240 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
6241 variable as an indication that a ClientHello message has been
6242 received. As the flag value will be lost between multiple
6243 invocations of ssl3_accept when using non-blocking I/O, the
6244 function may not be aware that a handshake has actually taken
6245 place, thus preventing a new session from being added to the
6248 To avoid this problem, we now set s->new_session to 2 instead of
6249 using a local variable.
6250 [Lutz Jaenicke, Bodo Moeller]
6252 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
6253 if the SSL_R_LENGTH_MISMATCH error is detected.
6254 [Geoff Thorpe, Bodo Moeller]
6256 *) New 'shared_ldflag' column in Configure platform table.
6259 *) Fix EVP_CIPHER_mode macro.
6260 ["Dan S. Camper" <dan@bti.net>]
6262 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
6263 type, we must throw them away by setting rr->length to 0.
6264 [D P Chang <dpc@qualys.com>]
6266 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
6268 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
6269 <Dominikus.Scherkl@biodata.com>. (The previous implementation
6270 worked incorrectly for those cases where range = 10..._2 and
6271 3*range is two bits longer than range.)
6274 *) Only add signing time to PKCS7 structures if it is not already
6278 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
6279 OBJ_ld_ce should be OBJ_id_ce.
6280 Also some ip-pda OIDs in crypto/objects/objects.txt were
6281 incorrect (cf. RFC 3039).
6282 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
6284 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
6285 returns early because it has nothing to do.
6286 [Andy Schneider <andy.schneider@bjss.co.uk>]
6288 *) [In 0.9.6c-engine release:]
6289 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
6290 [Andy Schneider <andy.schneider@bjss.co.uk>]
6292 *) [In 0.9.6c-engine release:]
6293 Add support for Cryptographic Appliance's keyserver technology.
6294 (Use engine 'keyclient')
6295 [Cryptographic Appliances and Geoff Thorpe]
6297 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
6298 is called via tools/c89.sh because arguments have to be
6299 rearranged (all '-L' options must appear before the first object
6301 [Richard Shapiro <rshapiro@abinitio.com>]
6303 *) [In 0.9.6c-engine release:]
6304 Add support for Broadcom crypto accelerator cards, backported
6306 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
6308 *) [In 0.9.6c-engine release:]
6309 Add support for SureWare crypto accelerator cards from
6310 Baltimore Technologies. (Use engine 'sureware')
6311 [Baltimore Technologies and Mark Cox]
6313 *) [In 0.9.6c-engine release:]
6314 Add support for crypto accelerator cards from Accelerated
6315 Encryption Processing, www.aep.ie. (Use engine 'aep')
6316 [AEP Inc. and Mark Cox]
6318 *) Add a configuration entry for gcc on UnixWare.
6319 [Gary Benson <gbenson@redhat.com>]
6321 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
6322 messages are stored in a single piece (fixed-length part and
6323 variable-length part combined) and fix various bugs found on the way.
6326 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
6327 instead. BIO_gethostbyname() does not know what timeouts are
6328 appropriate, so entries would stay in cache even when they have
6330 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
6332 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
6333 faced with a pathologically small ClientHello fragment that does
6334 not contain client_version: Instead of aborting with an error,
6335 simply choose the highest available protocol version (i.e.,
6336 TLS 1.0 unless it is disabled). In practice, ClientHello
6337 messages are never sent like this, but this change gives us
6338 strictly correct behaviour at least for TLS.
6341 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
6342 never resets s->method to s->ctx->method when called from within
6343 one of the SSL handshake functions.
6344 [Bodo Moeller; problem pointed out by Niko Baric]
6346 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
6347 (sent using the client's version number) if client_version is
6348 smaller than the protocol version in use. Also change
6349 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
6350 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
6351 the client will at least see that alert.
6354 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
6358 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
6359 client receives HelloRequest while in a handshake.
6360 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
6362 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
6363 should end in 'break', not 'goto end' which circuments various
6364 cleanups done in state SSL_ST_OK. But session related stuff
6365 must be disabled for SSL_ST_OK in the case that we just sent a
6368 Also avoid some overhead by not calling ssl_init_wbio_buffer()
6369 before just sending a HelloRequest.
6370 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
6372 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
6373 reveal whether illegal block cipher padding was found or a MAC
6374 verification error occured. (Neither SSLerr() codes nor alerts
6375 are directly visible to potential attackers, but the information
6376 may leak via logfiles.)
6378 Similar changes are not required for the SSL 2.0 implementation
6379 because the number of padding bytes is sent in clear for SSL 2.0,
6380 and the extra bytes are just ignored. However ssl/s2_pkt.c
6381 failed to verify that the purported number of padding bytes is in
6385 *) Add OpenUNIX-8 support including shared libraries
6386 (Boyd Lynn Gerber <gerberb@zenez.com>).
6389 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
6390 'wristwatch attack' using huge encoding parameters (cf.
6391 James H. Manger's CRYPTO 2001 paper). Note that the
6392 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
6393 encoding parameters and hence was not vulnerable.
6396 *) BN_sqr() bug fix.
6397 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
6399 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
6400 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
6401 followed by modular reduction.
6402 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
6404 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
6405 equivalent based on BN_pseudo_rand() instead of BN_rand().
6408 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
6409 This function was broken, as the check for a new client hello message
6410 to handle SGC did not allow these large messages.
6411 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
6414 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
6417 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
6418 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
6421 *) Rework the configuration and shared library support for Tru64 Unix.
6422 The configuration part makes use of modern compiler features and
6423 still retains old compiler behavior for those that run older versions
6424 of the OS. The shared library support part includes a variant that
6425 uses the RPATH feature, and is available through the special
6426 configuration target "alpha-cc-rpath", which will never be selected
6428 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
6430 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
6431 with the same message size as in ssl3_get_certificate_request().
6432 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
6433 messages might inadvertently be reject as too long.
6434 [Petr Lampa <lampa@fee.vutbr.cz>]
6436 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
6439 *) Modified SSL library such that the verify_callback that has been set
6440 specificly for an SSL object with SSL_set_verify() is actually being
6441 used. Before the change, a verify_callback set with this function was
6442 ignored and the verify_callback() set in the SSL_CTX at the time of
6443 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
6444 to allow the necessary settings.
6447 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
6448 explicitly to NULL, as at least on Solaris 8 this seems not always to be
6449 done automatically (in contradiction to the requirements of the C
6450 standard). This made problems when used from OpenSSH.
6453 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
6454 dh->length and always used
6456 BN_rand_range(priv_key, dh->p).
6458 BN_rand_range() is not necessary for Diffie-Hellman, and this
6459 specific range makes Diffie-Hellman unnecessarily inefficient if
6460 dh->length (recommended exponent length) is much smaller than the
6461 length of dh->p. We could use BN_rand_range() if the order of
6462 the subgroup was stored in the DH structure, but we only have
6467 BN_rand(priv_key, l, ...)
6469 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
6475 RSA_eay_public_encrypt
6476 RSA_eay_private_decrypt
6477 RSA_eay_private_encrypt (signing)
6478 RSA_eay_public_decrypt (signature verification)
6480 (default implementations for RSA_public_encrypt,
6481 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
6482 always reject numbers >= n.
6485 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
6486 to synchronize access to 'locking_thread'. This is necessary on
6487 systems where access to 'locking_thread' (an 'unsigned long'
6488 variable) is not atomic.
6491 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
6492 *before* setting the 'crypto_lock_rand' flag. The previous code had
6493 a race condition if 0 is a valid thread ID.
6494 [Travis Vitek <vitek@roguewave.com>]
6496 *) Add support for shared libraries under Irix.
6497 [Albert Chin-A-Young <china@thewrittenword.com>]
6499 *) Add configuration option to build on Linux on both big-endian and
6501 [Ralf Baechle <ralf@uni-koblenz.de>]
6503 *) Add the possibility to create shared libraries on HP-UX.
6506 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
6508 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
6509 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
6510 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
6511 PRNG state recovery was possible based on the output of
6512 one PRNG request appropriately sized to gain knowledge on
6513 'md' followed by enough consecutive 1-byte PRNG requests
6514 to traverse all of 'state'.
6516 1. When updating 'md_local' (the current thread's copy of 'md')
6517 during PRNG output generation, hash all of the previous
6518 'md_local' value, not just the half used for PRNG output.
6520 2. Make the number of bytes from 'state' included into the hash
6521 independent from the number of PRNG bytes requested.
6523 The first measure alone would be sufficient to avoid
6524 Markku-Juhani's attack. (Actually it had never occurred
6525 to me that the half of 'md_local' used for chaining was the
6526 half from which PRNG output bytes were taken -- I had always
6527 assumed that the secret half would be used.) The second
6528 measure makes sure that additional data from 'state' is never
6529 mixed into 'md_local' in small portions; this heuristically
6530 further strengthens the PRNG.
6533 *) Fix crypto/bn/asm/mips3.s.
6536 *) When only the key is given to "enc", the IV is undefined. Print out
6537 an error message in this case.
6540 *) Handle special case when X509_NAME is empty in X509 printing routines.
6543 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
6544 positive and less than q.
6547 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
6548 used: it isn't thread safe and the add_lock_callback should handle
6550 [Paul Rose <Paul.Rose@bridge.com>]
6552 *) Verify that incoming data obeys the block size in
6553 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
6557 [Ulf Möller, Bodo Möller]
6559 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
6560 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
6561 when fixing the server behaviour for backwards-compatible 'client
6562 hello' messages. (Note that the attack is impractical against
6563 SSL 3.0 and TLS 1.0 anyway because length and version checking
6564 means that the probability of guessing a valid ciphertext is
6565 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
6568 Before 0.9.5, the countermeasure (hide the error by generating a
6569 random 'decryption result') did not work properly because
6570 ERR_clear_error() was missing, meaning that SSL_get_error() would
6571 detect the supposedly ignored error.
6573 Both problems are now fixed.
6576 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
6577 (previously it was 1024).
6580 *) Fix for compatibility mode trust settings: ignore trust settings
6581 unless some valid trust or reject settings are present.
6584 *) Fix for blowfish EVP: its a variable length cipher.
6587 *) Fix various bugs related to DSA S/MIME verification. Handle missing
6588 parameters in DSA public key structures and return an error in the
6589 DSA routines if parameters are absent.
6592 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
6593 in the current directory if neither $RANDFILE nor $HOME was set.
6594 RAND_file_name() in 0.9.6a returned NULL in this case. This has
6595 caused some confusion to Windows users who haven't defined $HOME.
6596 Thus RAND_file_name() is changed again: e_os.h can define a
6597 DEFAULT_HOME, which will be used if $HOME is not set.
6598 For Windows, we use "C:"; on other platforms, we still require
6599 environment variables.
6601 *) Move 'if (!initialized) RAND_poll()' into regions protected by
6602 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
6603 having multiple threads call RAND_poll() concurrently.
6606 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
6607 combination of a flag and a thread ID variable.
6608 Otherwise while one thread is in ssleay_rand_bytes (which sets the
6609 flag), *other* threads can enter ssleay_add_bytes without obeying
6610 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
6611 that they do not hold after the first thread unsets add_do_not_lock).
6614 *) Change bctest again: '-x' expressions are not available in all
6618 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
6620 *) Fix a couple of memory leaks in PKCS7_dataDecode()
6621 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
6623 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
6624 the default extension for executables, if any. Also, make the perl
6625 scripts that use symlink() to test if it really exists and use "cp"
6626 if it doesn't. All this made OpenSSL compilable and installable in
6630 *) Fix for asn1_GetSequence() for indefinite length constructed data.
6631 If SEQUENCE is length is indefinite just set c->slen to the total
6632 amount of data available.
6633 [Steve Henson, reported by shige@FreeBSD.org]
6634 [This change does not apply to 0.9.7.]
6636 *) Change bctest to avoid here-documents inside command substitution
6637 (workaround for FreeBSD /bin/sh bug).
6638 For compatibility with Ultrix, avoid shell functions (introduced
6639 in the bctest version that searches along $PATH).
6642 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
6643 with des_encrypt() defined on some operating systems, like Solaris
6647 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
6648 On the Importance of Eliminating Errors in Cryptographic
6649 Computations, J. Cryptology 14 (2001) 2, 101-119,
6650 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
6653 *) MIPS assembler BIGNUM division bug fix.
6656 *) Disabled incorrect Alpha assembler code.
6659 *) Fix PKCS#7 decode routines so they correctly update the length
6660 after reading an EOC for the EXPLICIT tag.
6662 [This change does not apply to 0.9.7.]
6664 *) Fix bug in PKCS#12 key generation routines. This was triggered
6665 if a 3DES key was generated with a 0 initial byte. Include
6666 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6667 (but broken) behaviour.
6670 *) Enhance bctest to search for a working bc along $PATH and print
6672 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6674 *) Fix memory leaks in err.c: free err_data string if necessary;
6675 don't write to the wrong index in ERR_set_error_data.
6678 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6682 *) Replace rdtsc with _emit statements for VC++ version 5.
6683 [Jeremy Cooper <jeremy@baymoo.org>]
6685 *) Make it possible to reuse SSLv2 sessions.
6688 *) In copy_email() check for >= 0 as a return value for
6689 X509_NAME_get_index_by_NID() since 0 is a valid index.
6690 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6692 *) Avoid coredump with unsupported or invalid public keys by checking if
6693 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6694 PKCS7_verify() fails with non detached data.
6697 *) Don't use getenv in library functions when run as setuid/setgid.
6698 New function OPENSSL_issetugid().
6701 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6702 due to incorrect handling of multi-threading:
6704 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6706 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6708 3. Count how many times MemCheck_off() has been called so that
6709 nested use can be treated correctly. This also avoids
6710 inband-signalling in the previous code (which relied on the
6711 assumption that thread ID 0 is impossible).
6714 *) Add "-rand" option also to s_client and s_server.
6717 *) Fix CPU detection on Irix 6.x.
6718 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6719 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6721 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6724 [This change does not apply to 0.9.7.]
6726 *) Use the cached encoding of an X509_NAME structure rather than
6727 copying it. This is apparently the reason for the libsafe "errors"
6728 but the code is actually correct.
6731 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6732 Bleichenbacher's DSA attack.
6733 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6734 to be set and top=0 forces the highest bit to be set; top=-1 is new
6735 and leaves the highest bit random.
6736 [Ulf Moeller, Bodo Moeller]
6738 *) In the NCONF_...-based implementations for CONF_... queries
6739 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6740 a temporary CONF structure with the data component set to NULL
6741 (which gives segmentation faults in lh_retrieve).
6742 Instead, use NULL for the CONF pointer in CONF_get_string and
6743 CONF_get_number (which may use environment variables) and directly
6744 return NULL from CONF_get_section.
6747 *) Fix potential buffer overrun for EBCDIC.
6750 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6751 keyUsage if basicConstraints absent for a CA.
6754 *) Make SMIME_write_PKCS7() write mail header values with a format that
6755 is more generally accepted (no spaces before the semicolon), since
6756 some programs can't parse those values properly otherwise. Also make
6757 sure BIO's that break lines after each write do not create invalid
6761 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6762 macros previously used would not encode an empty SEQUENCE OF
6763 and break the signature.
6765 [This change does not apply to 0.9.7.]
6767 *) Zero the premaster secret after deriving the master secret in
6771 *) Add some EVP_add_digest_alias registrations (as found in
6772 OpenSSL_add_all_digests()) to SSL_library_init()
6773 aka OpenSSL_add_ssl_algorithms(). This provides improved
6774 compatibility with peers using X.509 certificates
6775 with unconventional AlgorithmIdentifier OIDs.
6778 *) Fix for Irix with NO_ASM.
6779 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6781 *) ./config script fixes.
6782 [Ulf Moeller, Richard Levitte]
6784 *) Fix 'openssl passwd -1'.
6787 *) Change PKCS12_key_gen_asc() so it can cope with non null
6788 terminated strings whose length is passed in the passlen
6789 parameter, for example from PEM callbacks. This was done
6790 by adding an extra length parameter to asc2uni().
6791 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6793 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6794 call failed, free the DSA structure.
6797 *) Fix to uni2asc() to cope with zero length Unicode strings.
6798 These are present in some PKCS#12 files.
6801 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6802 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6803 when writing a 32767 byte record.
6804 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6806 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6807 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6809 (RSA objects have a reference count access to which is protected
6810 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6811 so they are meant to be shared between threads.)
6812 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6813 "Reddie, Steven" <Steven.Reddie@ca.com>]
6815 *) Fix a deadlock in CRYPTO_mem_leaks().
6818 *) Use better test patterns in bntest.
6821 *) rand_win.c fix for Borland C.
6824 *) BN_rshift bugfix for n == 0.
6827 *) Add a 'bctest' script that checks for some known 'bc' bugs
6828 so that 'make test' does not abort just because 'bc' is broken.
6831 *) Store verify_result within SSL_SESSION also for client side to
6832 avoid potential security hole. (Re-used sessions on the client side
6833 always resulted in verify_result==X509_V_OK, not using the original
6834 result of the server certificate verification.)
6837 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6838 SSL3_RT_APPLICATION_DATA, return 0.
6839 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6843 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6844 releases, have been re-implemented by renaming the previous
6845 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6846 and ssl3_read_internal, respectively, and adding 'peek' parameters
6847 to them. The new ssl[23]_{read,peek} functions are calls to
6848 ssl[23]_read_internal with the 'peek' flag set appropriately.
6849 A 'peek' parameter has also been added to ssl3_read_bytes, which
6850 does the actual work for ssl3_read_internal.
6853 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6854 the method-specific "init()" handler. Also clean up ex_data after
6855 calling the method-specific "finish()" handler. Previously, this was
6856 happening the other way round.
6859 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6860 The previous value, 12, was not always sufficient for BN_mod_exp().
6863 *) Make sure that shared libraries get the internal name engine with
6864 the full version number and not just 0. This should mark the
6865 shared libraries as not backward compatible. Of course, this should
6866 be changed again when we can guarantee backward binary compatibility.
6869 *) Fix typo in get_cert_by_subject() in by_dir.c
6870 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6872 *) Rework the system to generate shared libraries:
6874 - Make note of the expected extension for the shared libraries and
6875 if there is a need for symbolic links from for example libcrypto.so.0
6876 to libcrypto.so.0.9.7. There is extended info in Configure for
6879 - Make as few rebuilds of the shared libraries as possible.
6881 - Still avoid linking the OpenSSL programs with the shared libraries.
6883 - When installing, install the shared libraries separately from the
6887 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6889 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6890 and not in SSL_clear because the latter is also used by the
6891 accept/connect functions; previously, the settings made by
6892 SSL_set_read_ahead would be lost during the handshake.
6893 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6895 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6896 Previously, it would create entries for disableed algorithms no
6900 *) Added several new manual pages for SSL_* function.
6903 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6905 *) In ssl23_get_client_hello, generate an error message when faced
6906 with an initial SSL 3.0/TLS record that is too small to contain the
6907 first two bytes of the ClientHello message, i.e. client_version.
6908 (Note that this is a pathologic case that probably has never happened
6909 in real life.) The previous approach was to use the version number
6910 from the record header as a substitute; but our protocol choice
6911 should not depend on that one because it is not authenticated
6912 by the Finished messages.
6915 *) More robust randomness gathering functions for Windows.
6916 [Jeffrey Altman <jaltman@columbia.edu>]
6918 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6919 not set then we don't setup the error code for issuer check errors
6920 to avoid possibly overwriting other errors which the callback does
6921 handle. If an application does set the flag then we assume it knows
6922 what it is doing and can handle the new informational codes
6926 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6927 a general "ANY" type, as such it should be able to decode anything
6928 including tagged types. However it didn't check the class so it would
6929 wrongly interpret tagged types in the same way as their universal
6930 counterpart and unknown types were just rejected. Changed so that the
6931 tagged and unknown types are handled in the same way as a SEQUENCE:
6932 that is the encoding is stored intact. There is also a new type
6933 "V_ASN1_OTHER" which is used when the class is not universal, in this
6934 case we have no idea what the actual type is so we just lump them all
6938 *) On VMS, stdout may very well lead to a file that is written to
6939 in a record-oriented fashion. That means that every write() will
6940 write a separate record, which will be read separately by the
6941 programs trying to read from it. This can be very confusing.
6943 The solution is to put a BIO filter in the way that will buffer
6944 text until a linefeed is reached, and then write everything a
6945 line at a time, so every record written will be an actual line,
6946 not chunks of lines and not (usually doesn't happen, but I've
6947 seen it once) several lines in one record. BIO_f_linebuffer() is
6950 Currently, it's a VMS-only method, because that's where it has
6951 been tested well enough.
6954 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6955 it can return incorrect results.
6956 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6957 but it was in 0.9.6-beta[12].)
6960 *) Disable the check for content being present when verifying detached
6961 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6962 include zero length content when signing messages.
6965 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6966 BIO_ctrl (for BIO pairs).
6969 *) Add DSO method for VMS.
6972 *) Bug fix: Montgomery multiplication could produce results with the
6976 *) Add RPM specification openssl.spec and modify it to build three
6977 packages. The default package contains applications, application
6978 documentation and run-time libraries. The devel package contains
6979 include files, static libraries and function documentation. The
6980 doc package contains the contents of the doc directory. The original
6981 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6984 *) Add a large number of documentation files for many SSL routines.
6985 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6987 *) Add a configuration entry for Sony News 4.
6988 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6990 *) Don't set the two most significant bits to one when generating a
6991 random number < q in the DSA library.
6994 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6995 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6996 the underlying transport is blocking) if a handshake took place.
6997 (The default behaviour is needed by applications such as s_client
6998 and s_server that use select() to determine when to use SSL_read;
6999 but for applications that know in advance when to expect data, it
7000 just makes things more complicated.)
7003 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
7007 *) Add a few more EBCDIC conditionals that make `req' and `x509'
7008 work better on such systems.
7009 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
7011 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
7012 Update PKCS12_parse() so it copies the friendlyName and the
7013 keyid to the certificates aux info.
7016 *) Fix bug in PKCS7_verify() which caused an infinite loop
7017 if there was more than one signature.
7018 [Sven Uszpelkat <su@celocom.de>]
7020 *) Major change in util/mkdef.pl to include extra information
7021 about each symbol, as well as presentig variables as well
7022 as functions. This change means that there's n more need
7023 to rebuild the .num files when some algorithms are excluded.
7026 *) Allow the verify time to be set by an application,
7027 rather than always using the current time.
7030 *) Phase 2 verify code reorganisation. The certificate
7031 verify code now looks up an issuer certificate by a
7032 number of criteria: subject name, authority key id
7033 and key usage. It also verifies self signed certificates
7034 by the same criteria. The main comparison function is
7035 X509_check_issued() which performs these checks.
7037 Lot of changes were necessary in order to support this
7038 without completely rewriting the lookup code.
7040 Authority and subject key identifier are now cached.
7042 The LHASH 'certs' is X509_STORE has now been replaced
7043 by a STACK_OF(X509_OBJECT). This is mainly because an
7044 LHASH can't store or retrieve multiple objects with
7045 the same hash value.
7047 As a result various functions (which were all internal
7048 use only) have changed to handle the new X509_STORE
7049 structure. This will break anything that messed round
7050 with X509_STORE internally.
7052 The functions X509_STORE_add_cert() now checks for an
7053 exact match, rather than just subject name.
7055 The X509_STORE API doesn't directly support the retrieval
7056 of multiple certificates matching a given criteria, however
7057 this can be worked round by performing a lookup first
7058 (which will fill the cache with candidate certificates)
7059 and then examining the cache for matches. This is probably
7060 the best we can do without throwing out X509_LOOKUP
7061 entirely (maybe later...).
7063 The X509_VERIFY_CTX structure has been enhanced considerably.
7065 All certificate lookup operations now go via a get_issuer()
7066 callback. Although this currently uses an X509_STORE it
7067 can be replaced by custom lookups. This is a simple way
7068 to bypass the X509_STORE hackery necessary to make this
7069 work and makes it possible to use more efficient techniques
7070 in future. A very simple version which uses a simple
7071 STACK for its trusted certificate store is also provided
7072 using X509_STORE_CTX_trusted_stack().
7074 The verify_cb() and verify() callbacks now have equivalents
7075 in the X509_STORE_CTX structure.
7077 X509_STORE_CTX also has a 'flags' field which can be used
7078 to customise the verify behaviour.
7081 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
7082 excludes S/MIME capabilities.
7085 *) When a certificate request is read in keep a copy of the
7086 original encoding of the signed data and use it when outputing
7087 again. Signatures then use the original encoding rather than
7088 a decoded, encoded version which may cause problems if the
7089 request is improperly encoded.
7092 *) For consistency with other BIO_puts implementations, call
7093 buffer_write(b, ...) directly in buffer_puts instead of calling
7096 In BIO_puts, increment b->num_write as in BIO_write.
7097 [Peter.Sylvester@EdelWeb.fr]
7099 *) Fix BN_mul_word for the case where the word is 0. (We have to use
7100 BN_zero, we may not return a BIGNUM with an array consisting of
7104 *) Avoid calling abort() from within the library when problems are
7105 detected, except if preprocessor symbols have been defined
7106 (such as REF_CHECK, BN_DEBUG etc.).
7109 *) New openssl application 'rsautl'. This utility can be
7110 used for low level RSA operations. DER public key
7111 BIO/fp routines also added.
7114 *) New Configure entry and patches for compiling on QNX 4.
7115 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
7117 *) A demo state-machine implementation was sponsored by
7118 Nuron (http://www.nuron.com/) and is now available in
7119 demos/state_machine.
7122 *) New options added to the 'dgst' utility for signature
7123 generation and verification.
7126 *) Unrecognized PKCS#7 content types are now handled via a
7127 catch all ASN1_TYPE structure. This allows unsupported
7128 types to be stored as a "blob" and an application can
7129 encode and decode it manually.
7132 *) Fix various signed/unsigned issues to make a_strex.c
7134 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
7136 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
7137 length if passed a buffer. ASN1_INTEGER_to_BN failed
7138 if passed a NULL BN and its argument was negative.
7139 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
7141 *) Modification to PKCS#7 encoding routines to output definite
7142 length encoding. Since currently the whole structures are in
7143 memory there's not real point in using indefinite length
7144 constructed encoding. However if OpenSSL is compiled with
7145 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
7148 *) Added BIO_vprintf() and BIO_vsnprintf().
7151 *) Added more prefixes to parse for in the the strings written
7152 through a logging bio, to cover all the levels that are available
7153 through syslog. The prefixes are now:
7155 PANIC, EMERG, EMR => LOG_EMERG
7156 ALERT, ALR => LOG_ALERT
7157 CRIT, CRI => LOG_CRIT
7158 ERROR, ERR => LOG_ERR
7159 WARNING, WARN, WAR => LOG_WARNING
7160 NOTICE, NOTE, NOT => LOG_NOTICE
7161 INFO, INF => LOG_INFO
7162 DEBUG, DBG => LOG_DEBUG
7164 and as before, if none of those prefixes are present at the
7165 beginning of the string, LOG_ERR is chosen.
7167 On Win32, the LOG_* levels are mapped according to this:
7169 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
7170 LOG_WARNING => EVENTLOG_WARNING_TYPE
7171 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
7175 *) Made it possible to reconfigure with just the configuration
7176 argument "reconf" or "reconfigure". The command line arguments
7177 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
7178 and are retrieved from there when reconfiguring.
7182 [Assar Westerlund <assar@sics.se>, Richard Levitte]
7184 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
7187 *) The obj_dat.pl script was messing up the sorting of object
7188 names. The reason was that it compared the quoted version
7189 of strings as a result "OCSP" > "OCSP Signing" because
7190 " > SPACE. Changed script to store unquoted versions of
7191 names and add quotes on output. It was also omitting some
7192 names from the lookup table if they were given a default
7193 value (that is if SN is missing it is given the same
7194 value as LN and vice versa), these are now added on the
7195 grounds that if an object has a name we should be able to
7196 look it up. Finally added warning output when duplicate
7197 short or long names are found.
7200 *) Changes needed for Tandem NSK.
7201 [Scott Uroff <scott@xypro.com>]
7203 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
7204 RSA_padding_check_SSLv23(), special padding was never detected
7205 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
7206 version rollback attacks was not effective.
7208 In s23_clnt.c, don't use special rollback-attack detection padding
7209 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
7210 client; similarly, in s23_srvr.c, don't do the rollback check if
7211 SSL 2.0 is the only protocol enabled in the server.
7214 *) Make it possible to get hexdumps of unprintable data with 'openssl
7215 asn1parse'. By implication, the functions ASN1_parse_dump() and
7216 BIO_dump_indent() are added.
7219 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
7220 these print out strings and name structures based on various
7221 flags including RFC2253 support and proper handling of
7222 multibyte characters. Added options to the 'x509' utility
7223 to allow the various flags to be set.
7226 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
7227 Also change the functions X509_cmp_current_time() and
7228 X509_gmtime_adj() work with an ASN1_TIME structure,
7229 this will enable certificates using GeneralizedTime in validity
7230 dates to be checked.
7233 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
7234 negative public key encodings) on by default,
7235 NO_NEG_PUBKEY_BUG can be set to disable it.
7238 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
7239 content octets. An i2c_ASN1_OBJECT is unnecessary because
7240 the encoding can be trivially obtained from the structure.
7243 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
7244 not read locks (CRYPTO_r_[un]lock).
7247 *) A first attempt at creating official support for shared
7248 libraries through configuration. I've kept it so the
7249 default is static libraries only, and the OpenSSL programs
7250 are always statically linked for now, but there are
7251 preparations for dynamic linking in place.
7252 This has been tested on Linux and Tru64.
7255 *) Randomness polling function for Win9x, as described in:
7256 Peter Gutmann, Software Generation of Practically Strong
7260 *) Fix so PRNG is seeded in req if using an already existing
7264 *) New options to smime application. -inform and -outform
7265 allow alternative formats for the S/MIME message including
7266 PEM and DER. The -content option allows the content to be
7267 specified separately. This should allow things like Netscape
7268 form signing output easier to verify.
7271 *) Fix the ASN1 encoding of tags using the 'long form'.
7274 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
7275 STRING types. These convert content octets to and from the
7276 underlying type. The actual tag and length octets are
7277 already assumed to have been read in and checked. These
7278 are needed because all other string types have virtually
7279 identical handling apart from the tag. By having versions
7280 of the ASN1 functions that just operate on content octets
7281 IMPLICIT tagging can be handled properly. It also allows
7282 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
7283 and ASN1_INTEGER are identical apart from the tag.
7286 *) Change the handling of OID objects as follows:
7288 - New object identifiers are inserted in objects.txt, following
7289 the syntax given in objects.README.
7290 - objects.pl is used to process obj_mac.num and create a new
7292 - obj_dat.pl is used to create a new obj_dat.h, using the data in
7295 This is currently kind of a hack, and the perl code in objects.pl
7296 isn't very elegant, but it works as I intended. The simplest way
7297 to check that it worked correctly is to look in obj_dat.h and
7298 check the array nid_objs and make sure the objects haven't moved
7299 around (this is important!). Additions are OK, as well as
7300 consistent name changes.
7303 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
7306 *) Addition of the command line parameter '-rand file' to 'openssl req'.
7307 The given file adds to whatever has already been seeded into the
7308 random pool through the RANDFILE configuration file option or
7309 environment variable, or the default random state file.
7312 *) mkstack.pl now sorts each macro group into lexical order.
7313 Previously the output order depended on the order the files
7314 appeared in the directory, resulting in needless rewriting
7318 *) Patches to make OpenSSL compile under Win32 again. Mostly
7319 work arounds for the VC++ problem that it treats func() as
7320 func(void). Also stripped out the parts of mkdef.pl that
7321 added extra typesafe functions: these no longer exist.
7324 *) Reorganisation of the stack code. The macros are now all
7325 collected in safestack.h . Each macro is defined in terms of
7326 a "stack macro" of the form SKM_<name>(type, a, b). The
7327 DEBUG_SAFESTACK is now handled in terms of function casts,
7328 this has the advantage of retaining type safety without the
7329 use of additional functions. If DEBUG_SAFESTACK is not defined
7330 then the non typesafe macros are used instead. Also modified the
7331 mkstack.pl script to handle the new form. Needs testing to see
7332 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
7333 the default if no major problems. Similar behaviour for ASN1_SET_OF
7334 and PKCS12_STACK_OF.
7337 *) When some versions of IIS use the 'NET' form of private key the
7338 key derivation algorithm is different. Normally MD5(password) is
7339 used as a 128 bit RC4 key. In the modified case
7340 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
7341 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
7342 as the old Netscape_RSA functions except they have an additional
7343 'sgckey' parameter which uses the modified algorithm. Also added
7344 an -sgckey command line option to the rsa utility. Thanks to
7345 Adrian Peck <bertie@ncipher.com> for posting details of the modified
7346 algorithm to openssl-dev.
7349 *) The evp_local.h macros were using 'c.##kname' which resulted in
7350 invalid expansion on some systems (SCO 5.0.5 for example).
7351 Corrected to 'c.kname'.
7352 [Phillip Porch <root@theporch.com>]
7354 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
7355 a STACK of email addresses from a certificate or request, these look
7356 in the subject name and the subject alternative name extensions and
7357 omit any duplicate addresses.
7360 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
7361 This makes DSA verification about 2 % faster.
7364 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
7365 (meaning that now 2^5 values will be precomputed, which is only 4 KB
7366 plus overhead for 1024 bit moduli).
7367 This makes exponentiations about 0.5 % faster for 1024 bit
7368 exponents (as measured by "openssl speed rsa2048").
7371 *) Rename memory handling macros to avoid conflicts with other
7373 Malloc => OPENSSL_malloc
7374 Malloc_locked => OPENSSL_malloc_locked
7375 Realloc => OPENSSL_realloc
7376 Free => OPENSSL_free
7379 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
7380 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
7383 *) CygWin32 support.
7384 [John Jarvie <jjarvie@newsguy.com>]
7386 *) The type-safe stack code has been rejigged. It is now only compiled
7387 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
7388 by default all type-specific stack functions are "#define"d back to
7389 standard stack functions. This results in more streamlined output
7390 but retains the type-safety checking possibilities of the original
7394 *) The STACK code has been cleaned up, and certain type declarations
7395 that didn't make a lot of sense have been brought in line. This has
7396 also involved a cleanup of sorts in safestack.h to more correctly
7397 map type-safe stack functions onto their plain stack counterparts.
7398 This work has also resulted in a variety of "const"ifications of
7399 lots of the code, especially "_cmp" operations which should normally
7400 be prototyped with "const" parameters anyway.
7403 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
7404 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
7405 (The PRNG state consists of two parts, the large pool 'state' and 'md',
7406 where all of 'md' is used each time the PRNG is used, but 'state'
7407 is used only indexed by a cyclic counter. As entropy may not be
7408 well distributed from the beginning, 'md' is important as a
7409 chaining variable. However, the output function chains only half
7410 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
7411 all of 'md', and seeding with STATE_SIZE dummy bytes will result
7412 in all of 'state' being rewritten, with the new values depending
7413 on virtually all of 'md'. This overcomes the 80 bit limitation.)
7416 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
7417 the handshake is continued after ssl_verify_cert_chain();
7418 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
7419 can lead to 'unexplainable' connection aborts later.
7420 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
7422 *) Major EVP API cipher revision.
7423 Add hooks for extra EVP features. This allows various cipher
7424 parameters to be set in the EVP interface. Support added for variable
7425 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
7426 setting of RC2 and RC5 parameters.
7428 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
7431 Remove lots of duplicated code from the EVP library. For example *every*
7432 cipher init() function handles the 'iv' in the same way according to the
7433 cipher mode. They also all do nothing if the 'key' parameter is NULL and
7434 for CFB and OFB modes they zero ctx->num.
7436 New functionality allows removal of S/MIME code RC2 hack.
7438 Most of the routines have the same form and so can be declared in terms
7441 By shifting this to the top level EVP_CipherInit() it can be removed from
7442 all individual ciphers. If the cipher wants to handle IVs or keys
7443 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
7446 Change lots of functions like EVP_EncryptUpdate() to now return a
7447 value: although software versions of the algorithms cannot fail
7448 any installed hardware versions can.
7451 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
7452 this option is set, tolerate broken clients that send the negotiated
7453 protocol version number instead of the requested protocol version
7457 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
7458 i.e. non-zero for export ciphersuites, zero otherwise.
7459 Previous versions had this flag inverted, inconsistent with
7460 rsa_tmp_cb (..._TMP_RSA_CB).
7461 [Bodo Moeller; problem reported by Amit Chopra]
7463 *) Add missing DSA library text string. Work around for some IIS
7464 key files with invalid SEQUENCE encoding.
7467 *) Add a document (doc/standards.txt) that list all kinds of standards
7468 and so on that are implemented in OpenSSL.
7471 *) Enhance c_rehash script. Old version would mishandle certificates
7472 with the same subject name hash and wouldn't handle CRLs at all.
7473 Added -fingerprint option to crl utility, to support new c_rehash
7477 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
7480 *) Fix for SSL server purpose checking. Server checking was
7481 rejecting certificates which had extended key usage present
7482 but no ssl client purpose.
7483 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
7485 *) Make PKCS#12 code work with no password. The PKCS#12 spec
7486 is a little unclear about how a blank password is handled.
7487 Since the password in encoded as a BMPString with terminating
7488 double NULL a zero length password would end up as just the
7489 double NULL. However no password at all is different and is
7490 handled differently in the PKCS#12 key generation code. NS
7491 treats a blank password as zero length. MSIE treats it as no
7492 password on export: but it will try both on import. We now do
7493 the same: PKCS12_parse() tries zero length and no password if
7494 the password is set to "" or NULL (NULL is now a valid password:
7495 it wasn't before) as does the pkcs12 application.
7498 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
7499 perror when PEM_read_bio_X509_REQ fails, the error message must
7500 be obtained from the error queue.
7503 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
7504 it in ERR_remove_state if appropriate, and change ERR_get_state
7505 accordingly to avoid race conditions (this is necessary because
7506 thread_hash is no longer constant once set).
7509 *) Bugfix for linux-elf makefile.one.
7512 *) RSA_get_default_method() will now cause a default
7513 RSA_METHOD to be chosen if one doesn't exist already.
7514 Previously this was only set during a call to RSA_new()
7515 or RSA_new_method(NULL) meaning it was possible for
7516 RSA_get_default_method() to return NULL.
7519 *) Added native name translation to the existing DSO code
7520 that will convert (if the flag to do so is set) filenames
7521 that are sufficiently small and have no path information
7522 into a canonical native form. Eg. "blah" converted to
7523 "libblah.so" or "blah.dll" etc.
7526 *) New function ERR_error_string_n(e, buf, len) which is like
7527 ERR_error_string(e, buf), but writes at most 'len' bytes
7528 including the 0 terminator. For ERR_error_string_n, 'buf'
7530 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
7532 *) CONF library reworked to become more general. A new CONF
7533 configuration file reader "class" is implemented as well as a
7534 new functions (NCONF_*, for "New CONF") to handle it. The now
7535 old CONF_* functions are still there, but are reimplemented to
7536 work in terms of the new functions. Also, a set of functions
7537 to handle the internal storage of the configuration data is
7538 provided to make it easier to write new configuration file
7539 reader "classes" (I can definitely see something reading a
7540 configuration file in XML format, for example), called _CONF_*,
7541 or "the configuration storage API"...
7543 The new configuration file reading functions are:
7545 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
7546 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
7548 NCONF_default, NCONF_WIN32
7550 NCONF_dump_fp, NCONF_dump_bio
7552 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
7553 NCONF_new creates a new CONF object. This works in the same way
7554 as other interfaces in OpenSSL, like the BIO interface.
7555 NCONF_dump_* dump the internal storage of the configuration file,
7556 which is useful for debugging. All other functions take the same
7557 arguments as the old CONF_* functions wth the exception of the
7558 first that must be a `CONF *' instead of a `LHASH *'.
7560 To make it easer to use the new classes with the old CONF_* functions,
7561 the function CONF_set_default_method is provided.
7564 *) Add '-tls1' option to 'openssl ciphers', which was already
7565 mentioned in the documentation but had not been implemented.
7566 (This option is not yet really useful because even the additional
7567 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
7570 *) Initial DSO code added into libcrypto for letting OpenSSL (and
7571 OpenSSL-based applications) load shared libraries and bind to
7572 them in a portable way.
7573 [Geoff Thorpe, with contributions from Richard Levitte]
7575 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
7577 *) Make sure _lrotl and _lrotr are only used with MSVC.
7579 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
7580 (the default implementation of RAND_status).
7582 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
7583 to '-clrext' (= clear extensions), as intended and documented.
7584 [Bodo Moeller; inconsistency pointed out by Michael Attili
7587 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
7588 was larger than the MD block size.
7589 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
7591 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
7592 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
7593 using the passed key: if the passed key was a private key the result
7594 of X509_print(), for example, would be to print out all the private key
7598 *) des_quad_cksum() byte order bug fix.
7599 [Ulf Möller, using the problem description in krb4-0.9.7, where
7600 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
7602 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
7604 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
7606 *) For easily testing in shell scripts whether some command
7607 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
7608 returns with exit code 0 iff no command of the given name is available.
7609 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
7610 the output goes to stdout and nothing is printed to stderr.
7611 Additional arguments are always ignored.
7613 Since for each cipher there is a command of the same name,
7614 the 'no-cipher' compilation switches can be tested this way.
7616 ('openssl no-XXX' is not able to detect pseudo-commands such
7617 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
7620 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
7623 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
7624 is set; it will be thrown away anyway because each handshake creates
7626 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
7627 to parameters -- in previous versions (since OpenSSL 0.9.3) the
7628 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
7629 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
7632 *) New s_client option -ign_eof: EOF at stdin is ignored, and
7633 'Q' and 'R' lose their special meanings (quit/renegotiate).
7634 This is part of what -quiet does; unlike -quiet, -ign_eof
7635 does not suppress any output.
7638 *) Add compatibility options to the purpose and trust code. The
7639 purpose X509_PURPOSE_ANY is "any purpose" which automatically
7640 accepts a certificate or CA, this was the previous behaviour,
7641 with all the associated security issues.
7643 X509_TRUST_COMPAT is the old trust behaviour: only and
7644 automatically trust self signed roots in certificate store. A
7645 new trust setting X509_TRUST_DEFAULT is used to specify that
7646 a purpose has no associated trust setting and it should instead
7647 use the value in the default purpose.
7650 *) Fix the PKCS#8 DSA private key code so it decodes keys again
7651 and fix a memory leak.
7654 *) In util/mkerr.pl (which implements 'make errors'), preserve
7655 reason strings from the previous version of the .c file, as
7656 the default to have only downcase letters (and digits) in
7657 automatically generated reasons codes is not always appropriate.
7660 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
7661 using strerror. Previously, ERR_reason_error_string() returned
7662 library names as reason strings for SYSerr; but SYSerr is a special
7663 case where small numbers are errno values, not library numbers.
7666 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7667 converts DSA parameters into DH parameters. (When creating parameters,
7668 DSA_generate_parameters is used.)
7671 *) Include 'length' (recommended exponent length) in C code generated
7672 by 'openssl dhparam -C'.
7675 *) The second argument to set_label in perlasm was already being used
7676 so couldn't be used as a "file scope" flag. Moved to third argument
7680 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7681 instead of RAND_bytes for encryption IVs and salts.
7684 *) Include RAND_status() into RAND_METHOD instead of implementing
7685 it only for md_rand.c Otherwise replacing the PRNG by calling
7686 RAND_set_rand_method would be impossible.
7689 *) Don't let DSA_generate_key() enter an infinite loop if the random
7690 number generation fails.
7693 *) New 'rand' application for creating pseudo-random output.
7696 *) Added configuration support for Linux/IA64
7697 [Rolf Haberrecker <rolf@suse.de>]
7699 *) Assembler module support for Mingw32.
7702 *) Shared library support for HPUX (in shlib/).
7703 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7705 *) Shared library support for Solaris gcc.
7706 [Lutz Behnke <behnke@trustcenter.de>]
7708 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7710 *) PKCS7_encrypt() was adding text MIME headers twice because they
7711 were added manually and by SMIME_crlf_copy().
7714 *) In bntest.c don't call BN_rand with zero bits argument.
7715 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7717 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7718 case was implemented. This caused BN_div_recp() to fail occasionally.
7721 *) Add an optional second argument to the set_label() in the perl
7722 assembly language builder. If this argument exists and is set
7723 to 1 it signals that the assembler should use a symbol whose
7724 scope is the entire file, not just the current function. This
7725 is needed with MASM which uses the format label:: for this scope.
7726 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7728 *) Change the ASN1 types so they are typedefs by default. Before
7729 almost all types were #define'd to ASN1_STRING which was causing
7730 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7734 *) Change names of new functions to the new get1/get0 naming
7735 convention: After 'get1', the caller owns a reference count
7736 and has to call ..._free; 'get0' returns a pointer to some
7737 data structure without incrementing reference counters.
7738 (Some of the existing 'get' functions increment a reference
7739 counter, some don't.)
7740 Similarly, 'set1' and 'add1' functions increase reference
7741 counters or duplicate objects.
7744 *) Allow for the possibility of temp RSA key generation failure:
7745 the code used to assume it always worked and crashed on failure.
7748 *) Fix potential buffer overrun problem in BIO_printf().
7749 [Ulf Möller, using public domain code by Patrick Powell; problem
7750 pointed out by David Sacerdote <das33@cornell.edu>]
7752 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7753 RAND_egd() and RAND_status(). In the command line application,
7754 the EGD socket can be specified like a seed file using RANDFILE
7758 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7759 Some CAs (e.g. Verisign) distribute certificates in this form.
7762 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7763 list to exclude them. This means that no special compilation option
7764 is needed to use anonymous DH: it just needs to be included in the
7768 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7769 EVP_MD_type. The old functionality is available in a new macro called
7770 EVP_MD_md(). Change code that uses it and update docs.
7773 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7774 where the 'void *' argument is replaced by a function pointer argument.
7775 Previously 'void *' was abused to point to functions, which works on
7776 many platforms, but is not correct. As these functions are usually
7777 called by macros defined in OpenSSL header files, most source code
7778 should work without changes.
7781 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7782 sections with information on -D... compiler switches used for
7783 compiling the library so that applications can see them. To enable
7784 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7785 must be defined. E.g.,
7786 #define OPENSSL_ALGORITHM_DEFINES
7787 #include <openssl/opensslconf.h>
7788 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7789 [Richard Levitte, Ulf and Bodo Möller]
7791 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7795 *) Change the 'other' type in certificate aux info to a STACK_OF
7796 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7797 the required ASN1 format: arbitrary types determined by an OID.
7800 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7801 argument to 'req'. This is not because the function is newer or
7802 better than others it just uses the work 'NEW' in the certificate
7803 request header lines. Some software needs this.
7806 *) Reorganise password command line arguments: now passwords can be
7807 obtained from various sources. Delete the PEM_cb function and make
7808 it the default behaviour: i.e. if the callback is NULL and the
7809 usrdata argument is not NULL interpret it as a null terminated pass
7810 phrase. If usrdata and the callback are NULL then the pass phrase
7811 is prompted for as usual.
7814 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7815 the support is automatically enabled. The resulting binaries will
7816 autodetect the card and use it if present.
7817 [Ben Laurie and Compaq Inc.]
7819 *) Work around for Netscape hang bug. This sends certificate request
7820 and server done in one record. Since this is perfectly legal in the
7821 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7822 the bugs/SSLv3 entry for more info.
7825 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7828 *) Add -rand argument to smime and pkcs12 applications and read/write
7832 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7835 *) Add command line password options to the remaining applications.
7838 *) Bug fix for BN_div_recp() for numerators with an even number of
7842 *) More tests in bntest.c, and changed test_bn output.
7845 *) ./config recognizes MacOS X now.
7848 *) Bug fix for BN_div() when the first words of num and divsor are
7849 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7852 *) Add support for various broken PKCS#8 formats, and command line
7853 options to produce them.
7856 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7857 get temporary BIGNUMs from a BN_CTX.
7860 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7864 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7865 include a #define from the old name to the new. The original intent
7866 was that statically linked binaries could for example just call
7867 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7868 link with digests. This never worked becayse SSLeay_add_all_digests()
7869 and SSLeay_add_all_ciphers() were in the same source file so calling
7870 one would link with the other. They are now in separate source files.
7873 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7876 *) Use a less unusual form of the Miller-Rabin primality test (it used
7877 a binary algorithm for exponentiation integrated into the Miller-Rabin
7878 loop, our standard modexp algorithms are faster).
7881 *) Support for the EBCDIC character set completed.
7882 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7884 *) Source code cleanups: use const where appropriate, eliminate casts,
7885 use void * instead of char * in lhash.
7888 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7889 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7890 this the server could overwrite ephemeral keys that the client
7894 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7895 using 50 iterations of the Rabin-Miller test.
7897 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7898 iterations of the Rabin-Miller test as required by the appendix
7899 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7900 As BN_is_prime_fasttest includes trial division, DSA parameter
7901 generation becomes much faster.
7903 This implies a change for the callback functions in DSA_is_prime
7904 and DSA_generate_parameters: The callback function is called once
7905 for each positive witness in the Rabin-Miller test, not just
7906 occasionally in the inner loop; and the parameters to the
7907 callback function now provide an iteration count for the outer
7908 loop rather than for the current invocation of the inner loop.
7909 DSA_generate_parameters additionally can call the callback
7910 function with an 'iteration count' of -1, meaning that a
7911 candidate has passed the trial division test (when q is generated
7912 from an application-provided seed, trial division is skipped).
7915 *) New function BN_is_prime_fasttest that optionally does trial
7916 division before starting the Rabin-Miller test and has
7917 an additional BN_CTX * argument (whereas BN_is_prime always
7918 has to allocate at least one BN_CTX).
7919 'callback(1, -1, cb_arg)' is called when a number has passed the
7920 trial division stage.
7923 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7927 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7930 *) New function BN_pseudo_rand().
7933 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7934 bignum version of BN_from_montgomery() with the working code from
7935 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7939 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7940 made it impossible to use the same SSL_SESSION data structure in
7941 SSL2 clients in multiple threads.
7944 *) The return value of RAND_load_file() no longer counts bytes obtained
7945 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7946 to seed the PRNG (previously an explicit byte count was required).
7947 [Ulf Möller, Bodo Möller]
7949 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7950 used (char *) instead of (void *) and had casts all over the place.
7953 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7956 *) Retain source code compatibility for BN_prime_checks macro:
7957 BN_is_prime(..., BN_prime_checks, ...) now uses
7958 BN_prime_checks_for_size to determine the appropriate number of
7959 Rabin-Miller iterations.
7962 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7963 DH_CHECK_P_NOT_SAFE_PRIME.
7964 (Check if this is true? OpenPGP calls them "strong".)
7967 *) Merge the functionality of "dh" and "gendh" programs into a new program
7968 "dhparam". The old programs are retained for now but will handle DH keys
7969 (instead of parameters) in future.
7972 *) Make the ciphers, s_server and s_client programs check the return values
7973 when a new cipher list is set.
7976 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7977 ciphers. Before when the 56bit ciphers were enabled the sorting was
7980 The syntax for the cipher sorting has been extended to support sorting by
7981 cipher-strength (using the strength_bits hard coded in the tables).
7982 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7984 Fix a bug in the cipher-command parser: when supplying a cipher command
7985 string with an "undefined" symbol (neither command nor alphanumeric
7986 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7987 an error is flagged.
7989 Due to the strength-sorting extension, the code of the
7990 ssl_create_cipher_list() function was completely rearranged. I hope that
7991 the readability was also increased :-)
7992 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7994 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7995 for the first serial number and places 2 in the serial number file. This
7996 avoids problems when the root CA is created with serial number zero and
7997 the first user certificate has the same issuer name and serial number
8001 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
8002 the new code. Add documentation for this stuff.
8005 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
8006 X509_*() to X509at_*() on the grounds that they don't handle X509
8007 structures and behave in an analagous way to the X509v3 functions:
8008 they shouldn't be called directly but wrapper functions should be used
8011 So we also now have some wrapper functions that call the X509at functions
8012 when passed certificate requests. (TO DO: similar things can be done with
8013 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
8014 things. Some of these need some d2i or i2d and print functionality
8015 because they handle more complex structures.)
8018 *) Add missing #ifndefs that caused missing symbols when building libssl
8019 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
8020 NO_RSA in ssl/s2*.c.
8021 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
8023 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
8024 has a return value which indicates the quality of the random data
8025 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
8026 error queue. New function RAND_pseudo_bytes() generates output that is
8027 guaranteed to be unique but not unpredictable. RAND_add is like
8028 RAND_seed, but takes an extra argument for an entropy estimate
8029 (RAND_seed always assumes full entropy).
8032 *) Do more iterations of Rabin-Miller probable prime test (specifically,
8033 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
8034 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
8035 in crypto/bn/bn_prime.c for the complete table). This guarantees a
8036 false-positive rate of at most 2^-80 for random input.
8039 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
8042 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
8043 in the 0.9.5 release), this returns the chain
8044 from an X509_CTX structure with a dup of the stack and all
8045 the X509 reference counts upped: so the stack will exist
8046 after X509_CTX_cleanup() has been called. Modify pkcs12.c
8049 Also make SSL_SESSION_print() print out the verify return
8053 *) Add manpage for the pkcs12 command. Also change the default
8054 behaviour so MAC iteration counts are used unless the new
8055 -nomaciter option is used. This improves file security and
8056 only older versions of MSIE (4.0 for example) need it.
8059 *) Honor the no-xxx Configure options when creating .DEF files.
8062 *) Add PKCS#10 attributes to field table: challengePassword,
8063 unstructuredName and unstructuredAddress. These are taken from
8064 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
8065 international characters are used.
8067 More changes to X509_ATTRIBUTE code: allow the setting of types
8068 based on strings. Remove the 'loc' parameter when adding
8069 attributes because these will be a SET OF encoding which is sorted
8073 *) Initial changes to the 'req' utility to allow request generation
8074 automation. This will allow an application to just generate a template
8075 file containing all the field values and have req construct the
8078 Initial support for X509_ATTRIBUTE handling. Stacks of these are
8079 used all over the place including certificate requests and PKCS#7
8080 structures. They are currently handled manually where necessary with
8081 some primitive wrappers for PKCS#7. The new functions behave in a
8082 manner analogous to the X509 extension functions: they allow
8083 attributes to be looked up by NID and added.
8085 Later something similar to the X509V3 code would be desirable to
8086 automatically handle the encoding, decoding and printing of the
8087 more complex types. The string types like challengePassword can
8088 be handled by the string table functions.
8090 Also modified the multi byte string table handling. Now there is
8091 a 'global mask' which masks out certain types. The table itself
8092 can use the flag STABLE_NO_MASK to ignore the mask setting: this
8093 is useful when for example there is only one permissible type
8094 (as in countryName) and using the mask might result in no valid
8098 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
8099 SSL_get_peer_finished to allow applications to obtain the latest
8100 Finished messages sent to the peer or expected from the peer,
8101 respectively. (SSL_get_peer_finished is usually the Finished message
8102 actually received from the peer, otherwise the protocol will be aborted.)
8104 As the Finished message are message digests of the complete handshake
8105 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
8106 be used for external authentication procedures when the authentication
8107 provided by SSL/TLS is not desired or is not enough.
8110 *) Enhanced support for Alpha Linux is added. Now ./config checks if
8111 the host supports BWX extension and if Compaq C is present on the
8112 $PATH. Just exploiting of the BWX extension results in 20-30%
8113 performance kick for some algorithms, e.g. DES and RC4 to mention
8114 a couple. Compaq C in turn generates ~20% faster code for MD5 and
8118 *) Add support for MS "fast SGC". This is arguably a violation of the
8119 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
8120 weak crypto and after checking the certificate is SGC a second one
8121 with strong crypto. MS SGC stops the first handshake after receiving
8122 the server certificate message and sends a second client hello. Since
8123 a server will typically do all the time consuming operations before
8124 expecting any further messages from the client (server key exchange
8125 is the most expensive) there is little difference between the two.
8127 To get OpenSSL to support MS SGC we have to permit a second client
8128 hello message after we have sent server done. In addition we have to
8129 reset the MAC if we do get this second client hello.
8132 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
8133 if a DER encoded private key is RSA or DSA traditional format. Changed
8134 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
8135 format DER encoded private key. Newer code should use PKCS#8 format which
8136 has the key type encoded in the ASN1 structure. Added DER private key
8137 support to pkcs8 application.
8140 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
8141 ciphersuites has been selected (as required by the SSL 3/TLS 1
8142 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
8143 is set, we interpret this as a request to violate the specification
8144 (the worst that can happen is a handshake failure, and 'correct'
8145 behaviour would result in a handshake failure anyway).
8148 *) In SSL_CTX_add_session, take into account that there might be multiple
8149 SSL_SESSION structures with the same session ID (e.g. when two threads
8150 concurrently obtain them from an external cache).
8151 The internal cache can handle only one SSL_SESSION with a given ID,
8152 so if there's a conflict, we now throw out the old one to achieve
8156 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
8157 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
8158 some routines that use cipher OIDs: some ciphers do not have OIDs
8159 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
8163 *) Simplify the trust setting structure and code. Now we just have
8164 two sequences of OIDs for trusted and rejected settings. These will
8165 typically have values the same as the extended key usage extension
8166 and any application specific purposes.
8168 The trust checking code now has a default behaviour: it will just
8169 check for an object with the same NID as the passed id. Functions can
8170 be provided to override either the default behaviour or the behaviour
8171 for a given id. SSL client, server and email already have functions
8172 in place for compatibility: they check the NID and also return "trusted"
8173 if the certificate is self signed.
8176 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
8177 traditional format into an EVP_PKEY structure.
8180 *) Add a password callback function PEM_cb() which either prompts for
8181 a password if usr_data is NULL or otherwise assumes it is a null
8182 terminated password. Allow passwords to be passed on command line
8183 environment or config files in a few more utilities.
8186 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
8187 keys. Add some short names for PKCS#8 PBE algorithms and allow them
8188 to be specified on the command line for the pkcs8 and pkcs12 utilities.
8189 Update documentation.
8192 *) Support for ASN1 "NULL" type. This could be handled before by using
8193 ASN1_TYPE but there wasn't any function that would try to read a NULL
8194 and produce an error if it couldn't. For compatibility we also have
8195 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
8196 don't allocate anything because they don't need to.
8199 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
8201 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
8203 *) Rebuild of the memory allocation routines used by OpenSSL code and
8204 possibly others as well. The purpose is to make an interface that
8205 provide hooks so anyone can build a separate set of allocation and
8206 deallocation routines to be used by OpenSSL, for example memory
8207 pool implementations, or something else, which was previously hard
8208 since Malloc(), Realloc() and Free() were defined as macros having
8209 the values malloc, realloc and free, respectively (except for Win32
8210 compilations). The same is provided for memory debugging code.
8211 OpenSSL already comes with functionality to find memory leaks, but
8212 this gives people a chance to debug other memory problems.
8214 With these changes, a new set of functions and macros have appeared:
8216 CRYPTO_set_mem_debug_functions() [F]
8217 CRYPTO_get_mem_debug_functions() [F]
8218 CRYPTO_dbg_set_options() [F]
8219 CRYPTO_dbg_get_options() [F]
8220 CRYPTO_malloc_debug_init() [M]
8222 The memory debug functions are NULL by default, unless the library
8223 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
8224 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
8225 gives the standard debugging functions that come with OpenSSL) or
8226 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
8227 provided by the library user) must be used. When the standard
8228 debugging functions are used, CRYPTO_dbg_set_options can be used to
8229 request additional information:
8230 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
8231 the CRYPTO_MDEBUG_xxx macro when compiling the library.
8233 Also, things like CRYPTO_set_mem_functions will always give the
8234 expected result (the new set of functions is used for allocation
8235 and deallocation) at all times, regardless of platform and compiler
8238 To finish it up, some functions that were never use in any other
8239 way than through macros have a new API and new semantic:
8242 CRYPTO_dbg_realloc()
8245 All macros of value have retained their old syntax.
8246 [Richard Levitte and Bodo Moeller]
8248 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
8249 ordering of SMIMECapabilities wasn't in "strength order" and there
8250 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
8254 *) Some ASN1 types with illegal zero length encoding (INTEGER,
8255 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
8256 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
8258 *) Merge in my S/MIME library for OpenSSL. This provides a simple
8259 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
8260 functionality to handle multipart/signed properly) and a utility
8261 called 'smime' to call all this stuff. This is based on code I
8262 originally wrote for Celo who have kindly allowed it to be
8263 included in OpenSSL.
8266 *) Add variants des_set_key_checked and des_set_key_unchecked of
8267 des_set_key (aka des_key_sched). Global variable des_check_key
8268 decides which of these is called by des_set_key; this way
8269 des_check_key behaves as it always did, but applications and
8270 the library itself, which was buggy for des_check_key == 1,
8271 have a cleaner way to pick the version they need.
8274 *) New function PKCS12_newpass() which changes the password of a
8278 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
8279 dynamic mix. In both cases the ids can be used as an index into the
8280 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
8281 functions so they accept a list of the field values and the
8282 application doesn't need to directly manipulate the X509_TRUST
8286 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
8290 *) Modify the way the V3 extension code looks up extensions. This now
8291 works in a similar way to the object code: we have some "standard"
8292 extensions in a static table which is searched with OBJ_bsearch()
8293 and the application can add dynamic ones if needed. The file
8294 crypto/x509v3/ext_dat.h now has the info: this file needs to be
8295 updated whenever a new extension is added to the core code and kept
8296 in ext_nid order. There is a simple program 'tabtest.c' which checks
8297 this. New extensions are not added too often so this file can readily
8298 be maintained manually.
8300 There are two big advantages in doing things this way. The extensions
8301 can be looked up immediately and no longer need to be "added" using
8302 X509V3_add_standard_extensions(): this function now does nothing.
8303 [Side note: I get *lots* of email saying the extension code doesn't
8304 work because people forget to call this function]
8305 Also no dynamic allocation is done unless new extensions are added:
8306 so if we don't add custom extensions there is no need to call
8307 X509V3_EXT_cleanup().
8310 *) Modify enc utility's salting as follows: make salting the default. Add a
8311 magic header, so unsalted files fail gracefully instead of just decrypting
8312 to garbage. This is because not salting is a big security hole, so people
8313 should be discouraged from doing it.
8316 *) Fixes and enhancements to the 'x509' utility. It allowed a message
8317 digest to be passed on the command line but it only used this
8318 parameter when signing a certificate. Modified so all relevant
8319 operations are affected by the digest parameter including the
8320 -fingerprint and -x509toreq options. Also -x509toreq choked if a
8321 DSA key was used because it didn't fix the digest.
8324 *) Initial certificate chain verify code. Currently tests the untrusted
8325 certificates for consistency with the verify purpose (which is set
8326 when the X509_STORE_CTX structure is set up) and checks the pathlength.
8328 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
8329 this is because it will reject chains with invalid extensions whereas
8330 every previous version of OpenSSL and SSLeay made no checks at all.
8332 Trust code: checks the root CA for the relevant trust settings. Trust
8333 settings have an initial value consistent with the verify purpose: e.g.
8334 if the verify purpose is for SSL client use it expects the CA to be
8335 trusted for SSL client use. However the default value can be changed to
8336 permit custom trust settings: one example of this would be to only trust
8337 certificates from a specific "secure" set of CAs.
8339 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
8340 which should be used for version portability: especially since the
8341 verify structure is likely to change more often now.
8343 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
8344 to set them. If not set then assume SSL clients will verify SSL servers
8347 Two new options to the verify program: -untrusted allows a set of
8348 untrusted certificates to be passed in and -purpose which sets the
8349 intended purpose of the certificate. If a purpose is set then the
8350 new chain verify code is used to check extension consistency.
8353 *) Support for the authority information access extension.
8356 *) Modify RSA and DSA PEM read routines to transparently handle
8357 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
8358 public keys in a format compatible with certificate
8359 SubjectPublicKeyInfo structures. Unfortunately there were already
8360 functions called *_PublicKey_* which used various odd formats so
8361 these are retained for compatibility: however the DSA variants were
8362 never in a public release so they have been deleted. Changed dsa/rsa
8363 utilities to handle the new format: note no releases ever handled public
8364 keys so we should be OK.
8366 The primary motivation for this change is to avoid the same fiasco
8367 that dogs private keys: there are several incompatible private key
8368 formats some of which are standard and some OpenSSL specific and
8369 require various evil hacks to allow partial transparent handling and
8370 even then it doesn't work with DER formats. Given the option anything
8371 other than PKCS#8 should be dumped: but the other formats have to
8372 stay in the name of compatibility.
8374 With public keys and the benefit of hindsight one standard format
8375 is used which works with EVP_PKEY, RSA or DSA structures: though
8376 it clearly returns an error if you try to read the wrong kind of key.
8378 Added a -pubkey option to the 'x509' utility to output the public key.
8379 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
8380 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
8381 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
8382 that do the same as the EVP_PKEY_assign_*() except they up the
8383 reference count of the added key (they don't "swallow" the
8387 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
8388 CRLs would fail if the file contained no certificates or no CRLs:
8389 added a new function to read in both types and return the number
8390 read: this means that if none are read it will be an error. The
8391 DER versions of the certificate and CRL reader would always fail
8392 because it isn't possible to mix certificates and CRLs in DER format
8393 without choking one or the other routine. Changed this to just read
8394 a certificate: this is the best we can do. Also modified the code
8395 in apps/verify.c to take notice of return codes: it was previously
8396 attempting to read in certificates from NULL pointers and ignoring
8397 any errors: this is one reason why the cert and CRL reader seemed
8398 to work. It doesn't check return codes from the default certificate
8399 routines: these may well fail if the certificates aren't installed.
8402 *) Code to support otherName option in GeneralName.
8405 *) First update to verify code. Change the verify utility
8406 so it warns if it is passed a self signed certificate:
8407 for consistency with the normal behaviour. X509_verify
8408 has been modified to it will now verify a self signed
8409 certificate if *exactly* the same certificate appears
8410 in the store: it was previously impossible to trust a
8411 single self signed certificate. This means that:
8412 openssl verify ss.pem
8413 now gives a warning about a self signed certificate but
8414 openssl verify -CAfile ss.pem ss.pem
8418 *) For servers, store verify_result in SSL_SESSION data structure
8419 (and add it to external session representation).
8420 This is needed when client certificate verifications fails,
8421 but an application-provided verification callback (set by
8422 SSL_CTX_set_cert_verify_callback) allows accepting the session
8423 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
8424 but returns 1): When the session is reused, we have to set
8425 ssl->verify_result to the appropriate error code to avoid
8427 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
8429 *) Fix a bug in the new PKCS#7 code: it didn't consider the
8430 case in PKCS7_dataInit() where the signed PKCS7 structure
8431 didn't contain any existing data because it was being created.
8432 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
8434 *) Add a salt to the key derivation routines in enc.c. This
8435 forms the first 8 bytes of the encrypted file. Also add a
8436 -S option to allow a salt to be input on the command line.
8439 *) New function X509_cmp(). Oddly enough there wasn't a function
8440 to compare two certificates. We do this by working out the SHA1
8441 hash and comparing that. X509_cmp() will be needed by the trust
8445 *) SSL_get1_session() is like SSL_get_session(), but increments
8446 the reference count in the SSL_SESSION returned.
8447 [Geoff Thorpe <geoff@eu.c2.net>]
8449 *) Fix for 'req': it was adding a null to request attributes.
8450 Also change the X509_LOOKUP and X509_INFO code to handle
8451 certificate auxiliary information.
8454 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
8458 *) Add the possibility to add extra information to the memory leak
8459 detecting output, to form tracebacks, showing from where each
8460 allocation was originated: CRYPTO_push_info("constant string") adds
8461 the string plus current file name and line number to a per-thread
8462 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
8463 is like calling CYRPTO_pop_info() until the stack is empty.
8464 Also updated memory leak detection code to be multi-thread-safe.
8467 *) Add options -text and -noout to pkcs7 utility and delete the
8468 encryption options which never did anything. Update docs.
8471 *) Add options to some of the utilities to allow the pass phrase
8472 to be included on either the command line (not recommended on
8473 OSes like Unix) or read from the environment. Update the
8474 manpages and fix a few bugs.
8477 *) Add a few manpages for some of the openssl commands.
8480 *) Fix the -revoke option in ca. It was freeing up memory twice,
8481 leaking and not finding already revoked certificates.
8484 *) Extensive changes to support certificate auxiliary information.
8485 This involves the use of X509_CERT_AUX structure and X509_AUX
8486 functions. An X509_AUX function such as PEM_read_X509_AUX()
8487 can still read in a certificate file in the usual way but it
8488 will also read in any additional "auxiliary information". By
8489 doing things this way a fair degree of compatibility can be
8490 retained: existing certificates can have this information added
8491 using the new 'x509' options.
8493 Current auxiliary information includes an "alias" and some trust
8494 settings. The trust settings will ultimately be used in enhanced
8495 certificate chain verification routines: currently a certificate
8496 can only be trusted if it is self signed and then it is trusted
8500 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
8501 The problem was that one of the replacement routines had not been working
8502 since SSLeay releases. For now the offending routine has been replaced
8503 with non-optimised assembler. Even so, this now gives around 95%
8504 performance improvement for 1024 bit RSA signs.
8507 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
8508 handling. Most clients have the effective key size in bits equal to
8509 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
8510 A few however don't do this and instead use the size of the decrypted key
8511 to determine the RC2 key length and the AlgorithmIdentifier to determine
8512 the effective key length. In this case the effective key length can still
8513 be 40 bits but the key length can be 168 bits for example. This is fixed
8514 by manually forcing an RC2 key into the EVP_PKEY structure because the
8515 EVP code can't currently handle unusual RC2 key sizes: it always assumes
8516 the key length and effective key length are equal.
8519 *) Add a bunch of functions that should simplify the creation of
8520 X509_NAME structures. Now you should be able to do:
8521 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
8522 and have it automatically work out the correct field type and fill in
8523 the structures. The more adventurous can try:
8524 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
8525 and it will (hopefully) work out the correct multibyte encoding.
8528 *) Change the 'req' utility to use the new field handling and multibyte
8529 copy routines. Before the DN field creation was handled in an ad hoc
8530 way in req, ca, and x509 which was rather broken and didn't support
8531 BMPStrings or UTF8Strings. Since some software doesn't implement
8532 BMPStrings or UTF8Strings yet, they can be enabled using the config file
8533 using the dirstring_type option. See the new comment in the default
8534 openssl.cnf for more info.
8537 *) Make crypto/rand/md_rand.c more robust:
8538 - Assure unique random numbers after fork().
8539 - Make sure that concurrent threads access the global counter and
8540 md serializably so that we never lose entropy in them
8541 or use exactly the same state in multiple threads.
8542 Access to the large state is not always serializable because
8543 the additional locking could be a performance killer, and
8544 md should be large enough anyway.
8547 *) New file apps/app_rand.c with commonly needed functionality
8548 for handling the random seed file.
8550 Use the random seed file in some applications that previously did not:
8552 dsaparam -genkey (which also ignored its '-rand' option),
8555 x509 (when signing).
8556 Except on systems with /dev/urandom, it is crucial to have a random
8557 seed file at least for key creation, DSA signing, and for DH exchanges;
8558 for RSA signatures we could do without one.
8560 gendh and gendsa (unlike genrsa) used to read only the first byte
8561 of each file listed in the '-rand' option. The function as previously
8562 found in genrsa is now in app_rand.c and is used by all programs
8563 that support '-rand'.
8566 *) In RAND_write_file, use mode 0600 for creating files;
8567 don't just chmod when it may be too late.
8570 *) Report an error from X509_STORE_load_locations
8571 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
8574 *) New function ASN1_mbstring_copy() this copies a string in either
8575 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
8576 into an ASN1_STRING type. A mask of permissible types is passed
8577 and it chooses the "minimal" type to use or an error if not type
8581 *) Add function equivalents to the various macros in asn1.h. The old
8582 macros are retained with an M_ prefix. Code inside the library can
8583 use the M_ macros. External code (including the openssl utility)
8584 should *NOT* in order to be "shared library friendly".
8587 *) Add various functions that can check a certificate's extensions
8588 to see if it usable for various purposes such as SSL client,
8589 server or S/MIME and CAs of these types. This is currently
8590 VERY EXPERIMENTAL but will ultimately be used for certificate chain
8591 verification. Also added a -purpose flag to x509 utility to
8592 print out all the purposes.
8595 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
8599 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
8600 for, obtain and decode and extension and obtain its critical flag.
8601 This allows all the necessary extension code to be handled in a
8602 single function call.
8605 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
8606 platforms. See crypto/rc4/rc4_enc.c for further details.
8609 *) New -noout option to asn1parse. This causes no output to be produced
8610 its main use is when combined with -strparse and -out to extract data
8611 from a file (which may not be in ASN.1 format).
8614 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
8615 when producing the local key id.
8616 [Richard Levitte <levitte@stacken.kth.se>]
8618 *) New option -dhparam in s_server. This allows a DH parameter file to be
8619 stated explicitly. If it is not stated then it tries the first server
8620 certificate file. The previous behaviour hard coded the filename
8624 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
8625 a public key to be input or output. For example:
8626 openssl rsa -in key.pem -pubout -out pubkey.pem
8627 Also added necessary DSA public key functions to handle this.
8630 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
8631 in the message. This was handled by allowing
8632 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
8633 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
8635 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
8636 to the end of the strings whereas this didn't. This would cause problems
8637 if strings read with d2i_ASN1_bytes() were later modified.
8638 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
8640 *) Fix for base64 decode bug. When a base64 bio reads only one line of
8641 data and it contains EOF it will end up returning an error. This is
8642 caused by input 46 bytes long. The cause is due to the way base64
8643 BIOs find the start of base64 encoded data. They do this by trying a
8644 trial decode on each line until they find one that works. When they
8645 do a flag is set and it starts again knowing it can pass all the
8646 data directly through the decoder. Unfortunately it doesn't reset
8647 the context it uses. This means that if EOF is reached an attempt
8648 is made to pass two EOFs through the context and this causes the
8649 resulting error. This can also cause other problems as well. As is
8650 usual with these problems it takes *ages* to find and the fix is
8651 trivial: move one line.
8652 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
8654 *) Ugly workaround to get s_client and s_server working under Windows. The
8655 old code wouldn't work because it needed to select() on sockets and the
8656 tty (for keypresses and to see if data could be written). Win32 only
8657 supports select() on sockets so we select() with a 1s timeout on the
8658 sockets and then see if any characters are waiting to be read, if none
8659 are present then we retry, we also assume we can always write data to
8660 the tty. This isn't nice because the code then blocks until we've
8661 received a complete line of data and it is effectively polling the
8662 keyboard at 1s intervals: however it's quite a bit better than not
8663 working at all :-) A dedicated Windows application might handle this
8664 with an event loop for example.
8667 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8668 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8669 will be called when RSA_sign() and RSA_verify() are used. This is useful
8670 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8671 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8672 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8673 This necessitated the support of an extra signature type NID_md5_sha1
8674 for SSL signatures and modifications to the SSL library to use it instead
8675 of calling RSA_public_decrypt() and RSA_private_encrypt().
8678 *) Add new -verify -CAfile and -CApath options to the crl program, these
8679 will lookup a CRL issuers certificate and verify the signature in a
8680 similar way to the verify program. Tidy up the crl program so it
8681 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8682 less strict. It will now permit CRL extensions even if it is not
8683 a V2 CRL: this will allow it to tolerate some broken CRLs.
8686 *) Initialize all non-automatic variables each time one of the openssl
8687 sub-programs is started (this is necessary as they may be started
8688 multiple times from the "OpenSSL>" prompt).
8689 [Lennart Bang, Bodo Moeller]
8691 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8692 removing all other RSA functionality (this is what NO_RSA does). This
8693 is so (for example) those in the US can disable those operations covered
8694 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8698 *) Non-copying interface to BIO pairs.
8699 (still largely untested)
8702 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8703 ASCII string. This was handled independently in various places before.
8706 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8707 UTF8 strings a character at a time.
8710 *) Use client_version from client hello to select the protocol
8711 (s23_srvr.c) and for RSA client key exchange verification
8712 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8715 *) Add various utility functions to handle SPKACs, these were previously
8716 handled by poking round in the structure internals. Added new function
8717 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8718 print, verify and generate SPKACs. Based on an original idea from
8719 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8722 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8725 *) Allow the config file extension section to be overwritten on the
8726 command line. Based on an original idea from Massimiliano Pala
8727 <madwolf@comune.modena.it>. The new option is called -extensions
8728 and can be applied to ca, req and x509. Also -reqexts to override
8729 the request extensions in req and -crlexts to override the crl extensions
8733 *) Add new feature to the SPKAC handling in ca. Now you can include
8734 the same field multiple times by preceding it by "XXXX." for example:
8737 this is the same syntax as used in the req config file.
8740 *) Allow certificate extensions to be added to certificate requests. These
8741 are specified in a 'req_extensions' option of the req section of the
8742 config file. They can be printed out with the -text option to req but
8743 are otherwise ignored at present.
8746 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8747 data read consists of only the final block it would not decrypted because
8748 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8749 A misplaced 'break' also meant the decrypted final block might not be
8750 copied until the next read.
8753 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8754 a few extra parameters to the DH structure: these will be useful if
8755 for example we want the value of 'q' or implement X9.42 DH.
8758 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8759 provides hooks that allow the default DSA functions or functions on a
8760 "per key" basis to be replaced. This allows hardware acceleration and
8761 hardware key storage to be handled without major modification to the
8762 library. Also added low level modexp hooks and CRYPTO_EX structure and
8763 associated functions.
8766 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8767 as "read only": it can't be written to and the buffer it points to will
8768 not be freed. Reading from a read only BIO is much more efficient than
8769 a normal memory BIO. This was added because there are several times when
8770 an area of memory needs to be read from a BIO. The previous method was
8771 to create a memory BIO and write the data to it, this results in two
8772 copies of the data and an O(n^2) reading algorithm. There is a new
8773 function BIO_new_mem_buf() which creates a read only memory BIO from
8774 an area of memory. Also modified the PKCS#7 routines to use read only
8778 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8779 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8780 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8781 but a retry condition occured while trying to read the rest.
8784 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8785 NID_pkcs7_encrypted by default: this was wrong since this should almost
8786 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8787 the encrypted data type: this is a more sensible place to put it and it
8788 allows the PKCS#12 code to be tidied up that duplicated this
8792 *) Changed obj_dat.pl script so it takes its input and output files on
8793 the command line. This should avoid shell escape redirection problems
8797 *) Initial support for certificate extension requests, these are included
8798 in things like Xenroll certificate requests. Included functions to allow
8799 extensions to be obtained and added.
8802 *) -crlf option to s_client and s_server for sending newlines as
8803 CRLF (as required by many protocols).
8806 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8808 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8809 [Ralf S. Engelschall]
8811 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8812 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8814 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8818 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8819 DH parameters/keys (q is lost during that conversion, but the resulting
8820 DH parameters contain its length).
8822 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8823 much faster than DH_generate_parameters (which creates parameters
8824 where p = 2*q + 1), and also the smaller q makes DH computations
8825 much more efficient (160-bit exponentiation instead of 1024-bit
8826 exponentiation); so this provides a convenient way to support DHE
8827 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8828 utter importance to use
8829 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8831 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8832 when such DH parameters are used, because otherwise small subgroup
8833 attacks may become possible!
8836 *) Avoid memory leak in i2d_DHparams.
8839 *) Allow the -k option to be used more than once in the enc program:
8840 this allows the same encrypted message to be read by multiple recipients.
8843 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8844 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8845 it will always use the numerical form of the OID, even if it has a short
8849 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8850 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8851 otherwise bn_mod_exp was called. In the case of hardware keys for example
8852 no private key components need be present and it might store extra data
8853 in the RSA structure, which cannot be accessed from bn_mod_exp.
8854 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8855 private key operations.
8858 *) Added support for SPARC Linux.
8861 *) pem_password_cb function type incompatibly changed from
8862 typedef int pem_password_cb(char *buf, int size, int rwflag);
8864 ....(char *buf, int size, int rwflag, void *userdata);
8865 so that applications can pass data to their callbacks:
8866 The PEM[_ASN1]_{read,write}... functions and macros now take an
8867 additional void * argument, which is just handed through whenever
8868 the password callback is called.
8869 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8871 New function SSL_CTX_set_default_passwd_cb_userdata.
8873 Compatibility note: As many C implementations push function arguments
8874 onto the stack in reverse order, the new library version is likely to
8875 interoperate with programs that have been compiled with the old
8876 pem_password_cb definition (PEM_whatever takes some data that
8877 happens to be on the stack as its last argument, and the callback
8878 just ignores this garbage); but there is no guarantee whatsoever that
8881 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8882 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8883 problems not only on Windows, but also on some Unix platforms.
8884 To avoid problematic command lines, these definitions are now in an
8885 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8886 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8889 *) MIPS III/IV assembler module is reimplemented.
8892 *) More DES library cleanups: remove references to srand/rand and
8893 delete an unused file.
8896 *) Add support for the the free Netwide assembler (NASM) under Win32,
8897 since not many people have MASM (ml) and it can be hard to obtain.
8898 This is currently experimental but it seems to work OK and pass all
8899 the tests. Check out INSTALL.W32 for info.
8902 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8903 without temporary keys kept an extra copy of the server key,
8904 and connections with temporary keys did not free everything in case
8908 *) New function RSA_check_key and new openssl rsa option -check
8909 for verifying the consistency of RSA keys.
8910 [Ulf Moeller, Bodo Moeller]
8912 *) Various changes to make Win32 compile work:
8913 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8914 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8915 comparison" warnings.
8916 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8919 *) Add a debugging option to PKCS#5 v2 key generation function: when
8920 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8921 derived keys are printed to stderr.
8924 *) Copy the flags in ASN1_STRING_dup().
8925 [Roman E. Pavlov <pre@mo.msk.ru>]
8927 *) The x509 application mishandled signing requests containing DSA
8928 keys when the signing key was also DSA and the parameters didn't match.
8930 It was supposed to omit the parameters when they matched the signing key:
8931 the verifying software was then supposed to automatically use the CA's
8932 parameters if they were absent from the end user certificate.
8934 Omitting parameters is no longer recommended. The test was also
8935 the wrong way round! This was probably due to unusual behaviour in
8936 EVP_cmp_parameters() which returns 1 if the parameters match.
8937 This meant that parameters were omitted when they *didn't* match and
8938 the certificate was useless. Certificates signed with 'ca' didn't have
8940 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8942 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8943 The interface is as follows:
8944 Applications can use
8945 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8946 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8947 "off" is now the default.
8948 The library internally uses
8949 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8950 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8951 to disable memory-checking temporarily.
8953 Some inconsistent states that previously were possible (and were
8954 even the default) are now avoided.
8956 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8957 with each memory chunk allocated; this is occasionally more helpful
8958 than just having a counter.
8960 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8962 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8966 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8967 which largely parallels "options", but is for changing API behaviour,
8968 whereas "options" are about protocol behaviour.
8969 Initial "mode" flags are:
8971 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8972 a single record has been written.
8973 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8974 retries use the same buffer location.
8975 (But all of the contents must be
8979 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8982 *) Fix problems with no-hmac etc.
8983 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8985 *) New functions RSA_get_default_method(), RSA_set_method() and
8986 RSA_get_method(). These allows replacement of RSA_METHODs without having
8987 to mess around with the internals of an RSA structure.
8990 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8991 Also really enable memory leak checks in openssl.c and in some
8993 [Chad C. Mulligan, Bodo Moeller]
8995 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8996 up the length of negative integers. This has now been simplified to just
8997 store the length when it is first determined and use it later, rather
8998 than trying to keep track of where data is copied and updating it to
9000 [Steve Henson, reported by Brien Wheeler
9001 <bwheeler@authentica-security.com>]
9003 *) Add a new function PKCS7_signatureVerify. This allows the verification
9004 of a PKCS#7 signature but with the signing certificate passed to the
9005 function itself. This contrasts with PKCS7_dataVerify which assumes the
9006 certificate is present in the PKCS#7 structure. This isn't always the
9007 case: certificates can be omitted from a PKCS#7 structure and be
9008 distributed by "out of band" means (such as a certificate database).
9011 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
9012 function prototypes in pem.h, also change util/mkdef.pl to add the
9013 necessary function names.
9016 *) mk1mf.pl (used by Windows builds) did not properly read the
9017 options set by Configure in the top level Makefile, and Configure
9018 was not even able to write more than one option correctly.
9019 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
9022 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
9023 file to be loaded from a BIO or FILE pointer. The BIO version will
9024 for example allow memory BIOs to contain config info.
9027 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
9028 Whoever hopes to achieve shared-library compatibility across versions
9029 must use this, not the compile-time macro.
9030 (Exercise 0.9.4: Which is the minimum library version required by
9032 Note: All this applies only to multi-threaded programs, others don't
9036 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
9037 through a BIO pair triggered the default case, i.e.
9038 SSLerr(...,SSL_R_UNKNOWN_STATE).
9041 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
9042 can use the SSL library even if none of the specific BIOs is
9046 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
9047 for the encoded length.
9048 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
9050 *) Add initial documentation of the X509V3 functions.
9053 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
9054 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
9055 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
9056 secure PKCS#8 private key format with a high iteration count.
9059 *) Fix determination of Perl interpreter: A perl or perl5
9060 _directory_ in $PATH was also accepted as the interpreter.
9061 [Ralf S. Engelschall]
9063 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
9064 wrong with it but it was very old and did things like calling
9065 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
9069 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
9070 to use the new extension code.
9073 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
9074 with macros. This should make it easier to change their form, add extra
9075 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
9079 *) Add to configuration table a new entry that can specify an alternative
9080 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
9081 according to Mark Crispin <MRC@Panda.COM>.
9085 *) DES CBC did not update the IV. Weird.
9088 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
9089 Changing the behaviour of the former might break existing programs --
9090 where IV updating is needed, des_ncbc_encrypt can be used.
9093 *) When bntest is run from "make test" it drives bc to check its
9094 calculations, as well as internally checking them. If an internal check
9095 fails, it needs to cause bc to give a non-zero result or make test carries
9096 on without noticing the failure. Fixed.
9099 *) DES library cleanups.
9102 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
9103 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
9104 ciphers. NOTE: although the key derivation function has been verified
9105 against some published test vectors it has not been extensively tested
9106 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
9110 *) Instead of "mkdir -p", which is not fully portable, use new
9111 Perl script "util/mkdir-p.pl".
9114 *) Rewrite the way password based encryption (PBE) is handled. It used to
9115 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
9116 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
9117 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
9118 the 'parameter' field of the AlgorithmIdentifier is passed to the
9119 underlying key generation function so it must do its own ASN1 parsing.
9120 This has also changed the EVP_PBE_CipherInit() function which now has a
9121 'parameter' argument instead of literal salt and iteration count values
9122 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
9125 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
9126 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
9127 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
9128 KEY" because this clashed with PKCS#8 unencrypted string. Since this
9129 value was just used as a "magic string" and not used directly its
9130 value doesn't matter.
9133 *) Introduce some semblance of const correctness to BN. Shame C doesn't
9137 *) "linux-sparc64" configuration (ultrapenguin).
9138 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
9139 "linux-sparc" configuration.
9140 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
9142 *) config now generates no-xxx options for missing ciphers.
9145 *) Support the EBCDIC character set (work in progress).
9146 File ebcdic.c not yet included because it has a different license.
9147 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
9149 *) Support BS2000/OSD-POSIX.
9150 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
9152 *) Make callbacks for key generation use void * instead of char *.
9155 *) Make S/MIME samples compile (not yet tested).
9158 *) Additional typesafe stacks.
9161 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
9165 Changes between 0.9.3 and 0.9.3a [29 May 1999]
9167 *) New configuration variant "sco5-gcc".
9169 *) Updated some demos.
9170 [Sean O Riordain, Wade Scholine]
9172 *) Add missing BIO_free at exit of pkcs12 application.
9175 *) Fix memory leak in conf.c.
9178 *) Updates for Win32 to assembler version of MD5.
9181 *) Set #! path to perl in apps/der_chop to where we found it
9182 instead of using a fixed path.
9185 *) SHA library changes for irix64-mips4-cc.
9188 *) Improvements for VMS support.
9192 Changes between 0.9.2b and 0.9.3 [24 May 1999]
9194 *) Bignum library bug fix. IRIX 6 passes "make test" now!
9195 This also avoids the problems with SC4.2 and unpatched SC5.
9196 [Andy Polyakov <appro@fy.chalmers.se>]
9198 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
9199 These are required because of the typesafe stack would otherwise break
9200 existing code. If old code used a structure member which used to be STACK
9201 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
9202 sk_num or sk_value it would produce an error because the num, data members
9203 are not present in STACK_OF. Now it just produces a warning. sk_set
9204 replaces the old method of assigning a value to sk_value
9205 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
9206 that does this will no longer work (and should use sk_set instead) but
9207 this could be regarded as a "questionable" behaviour anyway.
9210 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
9211 correctly handle encrypted S/MIME data.
9214 *) Change type of various DES function arguments from des_cblock
9215 (which means, in function argument declarations, pointer to char)
9216 to des_cblock * (meaning pointer to array with 8 char elements),
9217 which allows the compiler to do more typechecking; it was like
9218 that back in SSLeay, but with lots of ugly casts.
9220 Introduce new type const_des_cblock.
9223 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
9224 problems: find RecipientInfo structure that matches recipient certificate
9225 and initialise the ASN1 structures properly based on passed cipher.
9228 *) Belatedly make the BN tests actually check the results.
9231 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
9232 to and from BNs: it was completely broken. New compilation option
9233 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
9234 key elements as negative integers.
9237 *) Reorganize and speed up MD5.
9238 [Andy Polyakov <appro@fy.chalmers.se>]
9241 [Richard Levitte <richard@levitte.org>]
9243 *) New option -out to asn1parse to allow the parsed structure to be
9244 output to a file. This is most useful when combined with the -strparse
9245 option to examine the output of things like OCTET STRINGS.
9248 *) Make SSL library a little more fool-proof by not requiring any longer
9249 that SSL_set_{accept,connect}_state be called before
9250 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
9251 in many applications because usually everything *appeared* to work as
9252 intended anyway -- now it really works as intended).
9255 *) Move openssl.cnf out of lib/.
9258 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
9259 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
9260 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
9261 [Ralf S. Engelschall]
9263 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
9264 handle PKCS#7 enveloped data properly.
9265 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
9267 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
9268 copying pointers. The cert_st handling is changed by this in
9269 various ways (and thus what used to be known as ctx->default_cert
9270 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
9271 any longer when s->cert does not give us what we need).
9272 ssl_cert_instantiate becomes obsolete by this change.
9273 As soon as we've got the new code right (possibly it already is?),
9274 we have solved a couple of bugs of the earlier code where s->cert
9275 was used as if it could not have been shared with other SSL structures.
9277 Note that using the SSL API in certain dirty ways now will result
9278 in different behaviour than observed with earlier library versions:
9279 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
9280 does not influence s as it used to.
9282 In order to clean up things more thoroughly, inside SSL_SESSION
9283 we don't use CERT any longer, but a new structure SESS_CERT
9284 that holds per-session data (if available); currently, this is
9285 the peer's certificate chain and, for clients, the server's certificate
9286 and temporary key. CERT holds only those values that can have
9287 meaningful defaults in an SSL_CTX.
9290 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
9291 from the internal representation. Various PKCS#7 fixes: remove some
9292 evil casts and set the enc_dig_alg field properly based on the signing
9296 *) Allow PKCS#12 password to be set from the command line or the
9297 environment. Let 'ca' get its config file name from the environment
9298 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
9302 *) Allow certificate policies extension to use an IA5STRING for the
9303 organization field. This is contrary to the PKIX definition but
9304 VeriSign uses it and IE5 only recognises this form. Document 'x509'
9308 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
9309 without disallowing inline assembler and the like for non-pedantic builds.
9312 *) Support Borland C++ builder.
9313 [Janez Jere <jj@void.si>, modified by Ulf Möller]
9318 *) SHA-1 cleanups and performance enhancements.
9319 [Andy Polyakov <appro@fy.chalmers.se>]
9321 *) Sparc v8plus assembler for the bignum library.
9322 [Andy Polyakov <appro@fy.chalmers.se>]
9324 *) Accept any -xxx and +xxx compiler options in Configure.
9327 *) Update HPUX configuration.
9330 *) Add missing sk_<type>_unshift() function to safestack.h
9331 [Ralf S. Engelschall]
9333 *) New function SSL_CTX_use_certificate_chain_file that sets the
9334 "extra_cert"s in addition to the certificate. (This makes sense
9335 only for "PEM" format files, as chains as a whole are not
9339 *) Support verify_depth from the SSL API.
9340 x509_vfy.c had what can be considered an off-by-one-error:
9341 Its depth (which was not part of the external interface)
9342 was actually counting the number of certificates in a chain;
9343 now it really counts the depth.
9346 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
9347 instead of X509err, which often resulted in confusing error
9348 messages since the error codes are not globally unique
9349 (e.g. an alleged error in ssl3_accept when a certificate
9350 didn't match the private key).
9352 *) New function SSL_CTX_set_session_id_context that allows to set a default
9353 value (so that you don't need SSL_set_session_id_context for each
9354 connection using the SSL_CTX).
9357 *) OAEP decoding bug fix.
9360 *) Support INSTALL_PREFIX for package builders, as proposed by
9364 *) New Configure options "threads" and "no-threads". For systems
9365 where the proper compiler options are known (currently Solaris
9366 and Linux), "threads" is the default.
9369 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
9372 *) Install various scripts to $(OPENSSLDIR)/misc, not to
9373 $(INSTALLTOP)/bin -- they shouldn't clutter directories
9374 such as /usr/local/bin.
9377 *) "make linux-shared" to build shared libraries.
9378 [Niels Poppe <niels@netbox.org>]
9380 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
9383 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
9384 extension adding in x509 utility.
9387 *) Remove NOPROTO sections and error code comments.
9390 *) Partial rewrite of the DEF file generator to now parse the ANSI
9394 *) New Configure options --prefix=DIR and --openssldir=DIR.
9397 *) Complete rewrite of the error code script(s). It is all now handled
9398 by one script at the top level which handles error code gathering,
9399 header rewriting and C source file generation. It should be much better
9400 than the old method: it now uses a modified version of Ulf's parser to
9401 read the ANSI prototypes in all header files (thus the old K&R definitions
9402 aren't needed for error creation any more) and do a better job of
9403 translating function codes into names. The old 'ASN1 error code imbedded
9404 in a comment' is no longer necessary and it doesn't use .err files which
9405 have now been deleted. Also the error code call doesn't have to appear all
9406 on one line (which resulted in some large lines...).
9409 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
9412 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
9413 0 (which usually indicates a closed connection), but continue reading.
9416 *) Fix some race conditions.
9419 *) Add support for CRL distribution points extension. Add Certificate
9420 Policies and CRL distribution points documentation.
9423 *) Move the autogenerated header file parts to crypto/opensslconf.h.
9426 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
9427 8 of keying material. Merlin has also confirmed interop with this fix
9428 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
9429 [Merlin Hughes <merlin@baltimore.ie>]
9431 *) Fix lots of warnings.
9432 [Richard Levitte <levitte@stacken.kth.se>]
9434 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
9435 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
9436 [Richard Levitte <levitte@stacken.kth.se>]
9438 *) Fix problems with sizeof(long) == 8.
9439 [Andy Polyakov <appro@fy.chalmers.se>]
9441 *) Change functions to ANSI C.
9444 *) Fix typos in error codes.
9445 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
9447 *) Remove defunct assembler files from Configure.
9450 *) SPARC v8 assembler BIGNUM implementation.
9451 [Andy Polyakov <appro@fy.chalmers.se>]
9453 *) Support for Certificate Policies extension: both print and set.
9454 Various additions to support the r2i method this uses.
9457 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
9458 return a const string when you are expecting an allocated buffer.
9461 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
9462 types DirectoryString and DisplayText.
9465 *) Add code to allow r2i extensions to access the configuration database,
9466 add an LHASH database driver and add several ctx helper functions.
9469 *) Fix an evil bug in bn_expand2() which caused various BN functions to
9470 fail when they extended the size of a BIGNUM.
9473 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
9474 support typesafe stack.
9477 *) Fix typo in SSL_[gs]et_options().
9478 [Nils Frostberg <nils@medcom.se>]
9480 *) Delete various functions and files that belonged to the (now obsolete)
9481 old X509V3 handling code.
9484 *) New Configure option "rsaref".
9487 *) Don't auto-generate pem.h.
9490 *) Introduce type-safe ASN.1 SETs.
9493 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
9494 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
9496 *) Introduce type-safe STACKs. This will almost certainly break lots of code
9497 that links with OpenSSL (well at least cause lots of warnings), but fear
9498 not: the conversion is trivial, and it eliminates loads of evil casts. A
9499 few STACKed things have been converted already. Feel free to convert more.
9500 In the fullness of time, I'll do away with the STACK type altogether.
9503 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
9504 specified in <certfile> by updating the entry in the index.txt file.
9505 This way one no longer has to edit the index.txt file manually for
9506 revoking a certificate. The -revoke option does the gory details now.
9507 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
9509 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
9510 `-text' option at all and this way the `-noout -text' combination was
9511 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
9512 [Ralf S. Engelschall]
9514 *) Make sure a corresponding plain text error message exists for the
9515 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
9516 verify callback function determined that a certificate was revoked.
9517 [Ralf S. Engelschall]
9519 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
9520 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
9521 all available cipers including rc5, which was forgotten until now.
9522 In order to let the testing shell script know which algorithms
9523 are available, a new (up to now undocumented) command
9524 "openssl list-cipher-commands" is used.
9527 *) Bugfix: s_client occasionally would sleep in select() when
9528 it should have checked SSL_pending() first.
9531 *) New functions DSA_do_sign and DSA_do_verify to provide access to
9532 the raw DSA values prior to ASN.1 encoding.
9535 *) Tweaks to Configure
9536 [Niels Poppe <niels@netbox.org>]
9538 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
9542 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
9545 *) New config option to avoid instructions that are illegal on the 80386.
9546 The default code is faster, but requires at least a 486.
9549 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
9550 SSL2_SERVER_VERSION (not used at all) macros, which are now the
9551 same as SSL2_VERSION anyway.
9554 *) New "-showcerts" option for s_client.
9557 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
9558 application. Various cleanups and fixes.
9561 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
9562 modify error routines to work internally. Add error codes and PBE init
9563 to library startup routines.
9566 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
9567 packing functions to asn1 and evp. Changed function names and error
9568 codes along the way.
9571 *) PKCS12 integration: and so it begins... First of several patches to
9572 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
9573 objects to objects.h
9576 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
9577 and display support for Thawte strong extranet extension.
9580 *) Add LinuxPPC support.
9581 [Jeff Dubrule <igor@pobox.org>]
9583 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
9584 bn_div_words in alpha.s.
9585 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
9587 *) Make sure the RSA OAEP test is skipped under -DRSAref because
9588 OAEP isn't supported when OpenSSL is built with RSAref.
9589 [Ulf Moeller <ulf@fitug.de>]
9591 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
9592 so they no longer are missing under -DNOPROTO.
9593 [Soren S. Jorvang <soren@t.dk>]
9596 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
9598 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
9599 doesn't work when the session is reused. Coming soon!
9602 *) Fix a security hole, that allows sessions to be reused in the wrong
9603 context thus bypassing client cert protection! All software that uses
9604 client certs and session caches in multiple contexts NEEDS PATCHING to
9605 allow session reuse! A fuller solution is in the works.
9606 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
9608 *) Some more source tree cleanups (removed obsolete files
9609 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
9610 permission on "config" script to be executable) and a fix for the INSTALL
9612 [Ulf Moeller <ulf@fitug.de>]
9614 *) Remove some legacy and erroneous uses of malloc, free instead of
9616 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
9618 *) Make rsa_oaep_test return non-zero on error.
9619 [Ulf Moeller <ulf@fitug.de>]
9621 *) Add support for native Solaris shared libraries. Configure
9622 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
9623 if someone would make that last step automatic.
9624 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
9626 *) ctx_size was not built with the right compiler during "make links". Fixed.
9629 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
9630 except NULL ciphers". This means the default cipher list will no longer
9631 enable NULL ciphers. They need to be specifically enabled e.g. with
9632 the string "DEFAULT:eNULL".
9635 *) Fix to RSA private encryption routines: if p < q then it would
9636 occasionally produce an invalid result. This will only happen with
9637 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
9640 *) Be less restrictive and allow also `perl util/perlpath.pl
9641 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
9642 because this way one can also use an interpreter named `perl5' (which is
9643 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
9644 installed as `perl').
9645 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9647 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
9648 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9650 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
9651 advapi32.lib to Win32 build and change the pem test comparision
9652 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
9653 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
9654 and crypto/des/ede_cbcm_enc.c.
9657 *) DES quad checksum was broken on big-endian architectures. Fixed.
9660 *) Comment out two functions in bio.h that aren't implemented. Fix up the
9661 Win32 test batch file so it (might) work again. The Win32 test batch file
9662 is horrible: I feel ill....
9665 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
9666 in e_os.h. Audit of header files to check ANSI and non ANSI
9667 sections: 10 functions were absent from non ANSI section and not exported
9668 from Windows DLLs. Fixed up libeay.num for new functions.
9671 *) Make `openssl version' output lines consistent.
9672 [Ralf S. Engelschall]
9674 *) Fix Win32 symbol export lists for BIO functions: Added
9675 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9676 to ms/libeay{16,32}.def.
9677 [Ralf S. Engelschall]
9679 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9680 fine under Unix and passes some trivial tests I've now added. But the
9681 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9682 added to make sure no one expects that this stuff really works in the
9683 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9684 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9686 [Ralf S. Engelschall]
9688 *) Fix the generation of two part addresses in perl.
9689 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9691 *) Add config entry for Linux on MIPS.
9692 [John Tobey <jtobey@channel1.com>]
9694 *) Make links whenever Configure is run, unless we are on Windoze.
9697 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9698 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9702 *) Add a useful kludge to allow package maintainers to specify compiler and
9703 other platforms details on the command line without having to patch the
9704 Configure script everytime: One now can use ``perl Configure
9705 <id>:<details>'', i.e. platform ids are allowed to have details appended
9706 to them (seperated by colons). This is treated as there would be a static
9707 pre-configured entry in Configure's %table under key <id> with value
9708 <details> and ``perl Configure <id>'' is called. So, when you want to
9709 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9710 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9711 now, which overrides the FreeBSD-elf entry on-the-fly.
9712 [Ralf S. Engelschall]
9714 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9717 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9718 on the `perl Configure ...' command line. This way one can compile
9719 OpenSSL libraries with Position Independent Code (PIC) which is needed
9720 for linking it into DSOs.
9721 [Ralf S. Engelschall]
9723 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9727 *) Cleaned up the LICENSE document: The official contact for any license
9728 questions now is the OpenSSL core team under openssl-core@openssl.org.
9729 And add a paragraph about the dual-license situation to make sure people
9730 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9731 to the OpenSSL toolkit.
9732 [Ralf S. Engelschall]
9734 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9735 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9736 Additonally cleaned up the `make links' target: Remove unnecessary
9737 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9738 to speed processing and no longer clutter the display with confusing
9739 stuff. Instead only the actually done links are displayed.
9740 [Ralf S. Engelschall]
9742 *) Permit null encryption ciphersuites, used for authentication only. It used
9743 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9744 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9748 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9749 signed attributes when verifying signatures (this would break them),
9750 the detached data encoding was wrong and public keys obtained using
9751 X509_get_pubkey() weren't freed.
9754 *) Add text documentation for the BUFFER functions. Also added a work around
9755 to a Win95 console bug. This was triggered by the password read stuff: the
9756 last character typed gets carried over to the next fread(). If you were
9757 generating a new cert request using 'req' for example then the last
9758 character of the passphrase would be CR which would then enter the first
9762 *) Added the new `Includes OpenSSL Cryptography Software' button as
9763 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9764 button and can be used by applications based on OpenSSL to show the
9765 relationship to the OpenSSL project.
9766 [Ralf S. Engelschall]
9768 *) Remove confusing variables in function signatures in files
9769 ssl/ssl_lib.c and ssl/ssl.h.
9770 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9772 *) Don't install bss_file.c under PREFIX/include/
9773 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9775 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9776 functions that return function pointers and has support for NT specific
9777 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9778 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9779 unsigned to signed types: this was killing the Win32 compile.
9782 *) Add new certificate file to stack functions,
9783 SSL_add_dir_cert_subjects_to_stack() and
9784 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9785 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9786 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9787 This means that Apache-SSL and similar packages don't have to mess around
9788 to add as many CAs as they want to the preferred list.
9791 *) Experiment with doxygen documentation. Currently only partially applied to
9793 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9794 openssl.doxy as the configuration file.
9797 *) Get rid of remaining C++-style comments which strict C compilers hate.
9798 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9800 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9801 compiled in by default: it has problems with large keys.
9804 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9805 DH private keys and/or callback functions which directly correspond to
9806 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9807 is needed for applications which have to configure certificates on a
9808 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9810 For the RSA certificate situation is makes no difference, but
9811 for the DSA certificate situation this fixes the "no shared cipher"
9812 problem where the OpenSSL cipher selection procedure failed because the
9813 temporary keys were not overtaken from the context and the API provided
9814 no way to reconfigure them.
9815 The new functions now let applications reconfigure the stuff and they
9816 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9817 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9818 non-public-API function ssl_cert_instantiate() is used as a helper
9819 function and also to reduce code redundancy inside ssl_rsa.c.
9820 [Ralf S. Engelschall]
9822 *) Move s_server -dcert and -dkey options out of the undocumented feature
9823 area because they are useful for the DSA situation and should be
9824 recognized by the users.
9825 [Ralf S. Engelschall]
9827 *) Fix the cipher decision scheme for export ciphers: the export bits are
9828 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9829 SSL_EXP_MASK. So, the original variable has to be used instead of the
9830 already masked variable.
9831 [Richard Levitte <levitte@stacken.kth.se>]
9833 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9834 [Richard Levitte <levitte@stacken.kth.se>]
9836 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9837 from `int' to `unsigned int' because it's a length and initialized by
9838 EVP_DigestFinal() which expects an `unsigned int *'.
9839 [Richard Levitte <levitte@stacken.kth.se>]
9841 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9842 script. Instead use the usual Shell->Perl transition trick.
9843 [Ralf S. Engelschall]
9845 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9846 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9847 -noout -modulus' as it's already the case for `openssl rsa -noout
9848 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9849 currently the public key is printed (a decision which was already done by
9850 `openssl dsa -modulus' in the past) which serves a similar purpose.
9851 Additionally the NO_RSA no longer completely removes the whole -modulus
9852 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9854 [Ralf S. Engelschall]
9856 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9857 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9858 [Arne Ansper <arne@ats.cyber.ee>]
9860 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9861 to be added. Now both 'req' and 'ca' can use new objects defined in the
9865 *) Add cool BIO that does syslog (or event log on NT).
9866 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9868 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9869 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9870 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9871 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9874 *) Add preliminary config info for new extension code.
9877 *) Make RSA_NO_PADDING really use no padding.
9878 [Ulf Moeller <ulf@fitug.de>]
9880 *) Generate errors when private/public key check is done.
9883 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9884 for some CRL extensions and new objects added.
9887 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9888 key usage extension and fuller support for authority key id.
9891 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9892 padding method for RSA, which is recommended for new applications in PKCS
9893 #1 v2.0 (RFC 2437, October 1998).
9894 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9895 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9896 against Bleichbacher's attack on RSA.
9897 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9900 *) Updates to the new SSL compression code
9901 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9903 *) Fix so that the version number in the master secret, when passed
9904 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9905 (because the server will not accept higher), that the version number
9906 is 0x03,0x01, not 0x03,0x00
9907 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9909 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9910 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9911 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9914 *) Support for RAW extensions where an arbitrary extension can be
9915 created by including its DER encoding. See apps/openssl.cnf for
9919 *) Make sure latest Perl versions don't interpret some generated C array
9920 code as Perl array code in the crypto/err/err_genc.pl script.
9921 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9923 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9924 not many people have the assembler. Various Win32 compilation fixes and
9925 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9929 *) Modify configure script 'Configure' to automatically create crypto/date.h
9930 file under Win32 and also build pem.h from pem.org. New script
9931 util/mkfiles.pl to create the MINFO file on environments that can't do a
9932 'make files': perl util/mkfiles.pl >MINFO should work.
9935 *) Major rework of DES function declarations, in the pursuit of correctness
9936 and purity. As a result, many evil casts evaporated, and some weirdness,
9937 too. You may find this causes warnings in your code. Zapping your evil
9938 casts will probably fix them. Mostly.
9941 *) Fix for a typo in asn1.h. Bug fix to object creation script
9942 obj_dat.pl. It considered a zero in an object definition to mean
9943 "end of object": none of the objects in objects.h have any zeros
9944 so it wasn't spotted.
9945 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9947 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9948 Masking (CBCM). In the absence of test vectors, the best I have been able
9949 to do is check that the decrypt undoes the encrypt, so far. Send me test
9950 vectors if you have them.
9953 *) Correct calculation of key length for export ciphers (too much space was
9954 allocated for null ciphers). This has not been tested!
9957 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9958 message is now correct (it understands "crypto" and "ssl" on its
9959 command line). There is also now an "update" option. This will update
9960 the util/ssleay.num and util/libeay.num files with any new functions.
9962 perl util/mkdef.pl crypto ssl update
9963 it will update them.
9966 *) Overhauled the Perl interface (perl/*):
9967 - ported BN stuff to OpenSSL's different BN library
9968 - made the perl/ source tree CVS-aware
9969 - renamed the package from SSLeay to OpenSSL (the files still contain
9970 their history because I've copied them in the repository)
9971 - removed obsolete files (the test scripts will be replaced
9972 by better Test::Harness variants in the future)
9973 [Ralf S. Engelschall]
9975 *) First cut for a very conservative source tree cleanup:
9976 1. merge various obsolete readme texts into doc/ssleay.txt
9977 where we collect the old documents and readme texts.
9978 2. remove the first part of files where I'm already sure that we no
9979 longer need them because of three reasons: either they are just temporary
9980 files which were left by Eric or they are preserved original files where
9981 I've verified that the diff is also available in the CVS via "cvs diff
9982 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9983 the crypto/md/ stuff).
9984 [Ralf S. Engelschall]
9986 *) More extension code. Incomplete support for subject and issuer alt
9987 name, issuer and authority key id. Change the i2v function parameters
9988 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9989 what that's for :-) Fix to ASN1 macro which messed up
9990 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9993 *) Preliminary support for ENUMERATED type. This is largely copied from the
9997 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9998 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10000 *) Make sure `make rehash' target really finds the `openssl' program.
10001 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
10003 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
10004 like to hear about it if this slows down other processors.
10007 *) Add CygWin32 platform information to Configure script.
10008 [Alan Batie <batie@aahz.jf.intel.com>]
10010 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
10011 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
10013 *) New program nseq to manipulate netscape certificate sequences
10016 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
10020 *) Fixes to BN code. Previously the default was to define BN_RECURSION
10021 but the BN code had some problems that would cause failures when
10022 doing certificate verification and some other functions.
10023 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
10025 *) Add ASN1 and PEM code to support netscape certificate sequences.
10028 *) Add ASN1 and PEM code to support netscape certificate sequences.
10031 *) Add several PKIX and private extended key usage OIDs.
10034 *) Modify the 'ca' program to handle the new extension code. Modify
10035 openssl.cnf for new extension format, add comments.
10038 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
10039 and add a sample to openssl.cnf so req -x509 now adds appropriate
10043 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
10044 error code, add initial support to X509_print() and x509 application.
10047 *) Takes a deep breath and start addding X509 V3 extension support code. Add
10048 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
10049 stuff is currently isolated and isn't even compiled yet.
10052 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
10053 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
10054 Removed the versions check from X509 routines when loading extensions:
10055 this allows certain broken certificates that don't set the version
10056 properly to be processed.
10059 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
10060 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
10061 can still be regenerated with "make depend".
10064 *) Spelling mistake in C version of CAST-128.
10065 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
10067 *) Changes to the error generation code. The perl script err-code.pl
10068 now reads in the old error codes and retains the old numbers, only
10069 adding new ones if necessary. It also only changes the .err files if new
10070 codes are added. The makefiles have been modified to only insert errors
10071 when needed (to avoid needlessly modifying header files). This is done
10072 by only inserting errors if the .err file is newer than the auto generated
10073 C file. To rebuild all the error codes from scratch (the old behaviour)
10074 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
10075 or delete all the .err files.
10078 *) CAST-128 was incorrectly implemented for short keys. The C version has
10079 been fixed, but is untested. The assembler versions are also fixed, but
10080 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
10081 to regenerate it if needed.
10082 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
10083 Hagino <itojun@kame.net>]
10085 *) File was opened incorrectly in randfile.c.
10086 [Ulf Möller <ulf@fitug.de>]
10088 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
10089 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
10090 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
10091 al: it's just almost always a UTCTime. Note this patch adds new error
10092 codes so do a "make errors" if there are problems.
10095 *) Correct Linux 1 recognition in config.
10096 [Ulf Möller <ulf@fitug.de>]
10098 *) Remove pointless MD5 hash when using DSA keys in ca.
10099 [Anonymous <nobody@replay.com>]
10101 *) Generate an error if given an empty string as a cert directory. Also
10102 generate an error if handed NULL (previously returned 0 to indicate an
10103 error, but didn't set one).
10104 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
10106 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
10109 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
10110 parameters. This was causing a warning which killed off the Win32 compile.
10113 *) Remove C++ style comments from crypto/bn/bn_local.h.
10114 [Neil Costigan <neil.costigan@celocom.com>]
10116 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
10117 based on a text string, looking up short and long names and finally
10118 "dot" format. The "dot" format stuff didn't work. Added new function
10119 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
10120 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
10121 OID is not part of the table.
10124 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
10125 X509_LOOKUP_by_alias().
10128 *) Sort openssl functions by name.
10131 *) Get the gendsa program working (hopefully) and add it to app list. Remove
10132 encryption from sample DSA keys (in case anyone is interested the password
10136 *) Make _all_ *_free functions accept a NULL pointer.
10137 [Frans Heymans <fheymans@isaserver.be>]
10139 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
10141 [Anonymous <nobody@replay.com>]
10143 *) s_server should send the CAfile as acceptable CAs, not its own cert.
10144 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
10146 *) Don't blow it for numeric -newkey arguments to apps/req.
10147 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
10149 *) Temp key "for export" tests were wrong in s3_srvr.c.
10150 [Anonymous <nobody@replay.com>]
10152 *) Add prototype for temp key callback functions
10153 SSL_CTX_set_tmp_{rsa,dh}_callback().
10156 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
10157 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
10160 *) X509_name_add_entry() freed the wrong thing after an error.
10161 [Arne Ansper <arne@ats.cyber.ee>]
10163 *) rsa_eay.c would attempt to free a NULL context.
10164 [Arne Ansper <arne@ats.cyber.ee>]
10166 *) BIO_s_socket() had a broken should_retry() on Windoze.
10167 [Arne Ansper <arne@ats.cyber.ee>]
10169 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
10170 [Arne Ansper <arne@ats.cyber.ee>]
10172 *) Make sure the already existing X509_STORE->depth variable is initialized
10173 in X509_STORE_new(), but document the fact that this variable is still
10174 unused in the certificate verification process.
10175 [Ralf S. Engelschall]
10177 *) Fix the various library and apps files to free up pkeys obtained from
10178 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
10181 *) Fix reference counting in X509_PUBKEY_get(). This makes
10182 demos/maurice/example2.c work, amongst others, probably.
10183 [Steve Henson and Ben Laurie]
10185 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
10186 `openssl' and second, the shortcut symlinks for the `openssl <command>'
10187 are no longer created. This way we have a single and consistent command
10188 line interface `openssl <command>', similar to `cvs <command>'.
10189 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
10191 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
10192 BIT STRING wrapper always have zero unused bits.
10195 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
10198 *) Make the top-level INSTALL documentation easier to understand.
10201 *) Makefiles updated to exit if an error occurs in a sub-directory
10202 make (including if user presses ^C) [Paul Sutton]
10204 *) Make Montgomery context stuff explicit in RSA data structure.
10207 *) Fix build order of pem and err to allow for generated pem.h.
10210 *) Fix renumbering bug in X509_NAME_delete_entry().
10213 *) Enhanced the err-ins.pl script so it makes the error library number
10214 global and can add a library name. This is needed for external ASN1 and
10215 other error libraries.
10218 *) Fixed sk_insert which never worked properly.
10221 *) Fix ASN1 macros so they can handle indefinite length construted
10222 EXPLICIT tags. Some non standard certificates use these: they can now
10226 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
10227 into a single doc/ssleay.txt bundle. This way the information is still
10228 preserved but no longer messes up this directory. Now it's new room for
10229 the new set of documenation files.
10230 [Ralf S. Engelschall]
10232 *) SETs were incorrectly DER encoded. This was a major pain, because they
10233 shared code with SEQUENCEs, which aren't coded the same. This means that
10234 almost everything to do with SETs or SEQUENCEs has either changed name or
10235 number of arguments.
10236 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
10238 *) Fix test data to work with the above.
10241 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
10242 was already fixed by Eric for 0.9.1 it seems.
10243 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
10245 *) Autodetect FreeBSD3.
10248 *) Fix various bugs in Configure. This affects the following platforms:
10252 unixware-2.0-pentium
10256 *) Eliminate generated files from CVS. Reorder tests to regenerate files
10257 before they are needed.
10260 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
10264 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
10266 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
10267 changed SSLeay to OpenSSL in version strings.
10268 [Ralf S. Engelschall]
10270 *) Some fixups to the top-level documents.
10273 *) Fixed the nasty bug where rsaref.h was not found under compile-time
10274 because the symlink to include/ was missing.
10275 [Ralf S. Engelschall]
10277 *) Incorporated the popular no-RSA/DSA-only patches
10278 which allow to compile a RSA-free SSLeay.
10279 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
10281 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
10282 when "ssleay" is still not found.
10283 [Ralf S. Engelschall]
10285 *) Added more platforms to Configure: Cray T3E, HPUX 11,
10286 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
10288 *) Updated the README file.
10289 [Ralf S. Engelschall]
10291 *) Added various .cvsignore files in the CVS repository subdirs
10292 to make a "cvs update" really silent.
10293 [Ralf S. Engelschall]
10295 *) Recompiled the error-definition header files and added
10296 missing symbols to the Win32 linker tables.
10297 [Ralf S. Engelschall]
10299 *) Cleaned up the top-level documents;
10300 o new files: CHANGES and LICENSE
10301 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
10302 o merged COPYRIGHT into LICENSE
10303 o removed obsolete TODO file
10304 o renamed MICROSOFT to INSTALL.W32
10305 [Ralf S. Engelschall]
10307 *) Removed dummy files from the 0.9.1b source tree:
10308 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
10309 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
10310 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
10311 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
10312 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
10313 [Ralf S. Engelschall]
10315 *) Added various platform portability fixes.
10318 *) The Genesis of the OpenSSL rpject:
10319 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
10320 Young and Tim J. Hudson created while they were working for C2Net until
10322 [The OpenSSL Project]
10325 Changes between 0.9.0b and 0.9.1b [not released]
10327 *) Updated a few CA certificates under certs/
10330 *) Changed some BIGNUM api stuff.
10333 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
10334 DGUX x86, Linux Alpha, etc.
10337 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
10338 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
10342 *) Add -strparse option to asn1pars program which parses nested
10344 [Dr Stephen Henson <shenson@bigfoot.com>]
10346 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
10349 *) DSA fix for "ca" program.
10352 *) Added "-genkey" option to "dsaparam" program.
10355 *) Added RIPE MD160 (rmd160) message digest.
10358 *) Added -a (all) option to "ssleay version" command.
10361 *) Added PLATFORM define which is the id given to Configure.
10364 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
10367 *) Extended the ASN.1 parser routines.
10370 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
10373 *) Added a BN_CTX to the BN library.
10376 *) Fixed the weak key values in DES library
10379 *) Changed API in EVP library for cipher aliases.
10382 *) Added support for RC2/64bit cipher.
10385 *) Converted the lhash library to the crypto/mem.c functions.
10388 *) Added more recognized ASN.1 object ids.
10391 *) Added more RSA padding checks for SSL/TLS.
10394 *) Added BIO proxy/filter functionality.
10397 *) Added extra_certs to SSL_CTX which can be used
10398 send extra CA certificates to the client in the CA cert chain sending
10399 process. It can be configured with SSL_CTX_add_extra_chain_cert().
10402 *) Now Fortezza is denied in the authentication phase because
10403 this is key exchange mechanism is not supported by SSLeay at all.
10406 *) Additional PKCS1 checks.
10409 *) Support the string "TLSv1" for all TLS v1 ciphers.
10412 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
10413 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
10416 *) Fixed a few memory leaks.
10419 *) Fixed various code and comment typos.
10422 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
10423 bytes sent in the client random.
10424 [Edward Bishop <ebishop@spyglass.com>]