5 Changes between 1.0.2f and 1.1.0 [xx XXX xxxx]
7 *) New "unified" build system
9 The "unified" build system is aimed to be a common system for all
10 platforms we support. With it comes new support for VMS.
12 This system builds supports building in a differnt directory tree
13 than the source tree. It produces one Makefile (for unix family
14 or lookalikes), or one descrip.mms (for VMS).
16 The source of information to make the Makefile / descrip.mms is
17 small files called 'build.info', holding the necessary
18 information for each directory with source to compile, and a
19 template in Configurations, like unix-Makefile.tmpl or
22 We rely heavily on the perl module Text::Template.
25 *) Added support for auto-initialisation and de-initialisation of the library.
26 OpenSSL no longer requires explicit init or deinit routines to be called,
27 except in certain circumstances. See the OPENSSL_init_crypto() and
28 OPENSSL_init_ssl() man pages for further information.
31 *) The arguments to the DTLSv1_listen function have changed. Specifically the
32 "peer" argument is now expected to be a BIO_ADDR object.
34 *) Rewrite of BIO networking library. The BIO library lacked consistent
35 support of IPv6, and adding it required some more extensive
36 modifications. This introduces the BIO_ADDR and BIO_ADDRINFO types,
37 which hold all types of addresses and chains of address information.
38 It also introduces a new API, with functions like BIO_socket,
39 BIO_connect, BIO_listen, BIO_lookup and a rewrite of BIO_accept.
40 The source/sink BIOs BIO_s_connect, BIO_s_accept and BIO_s_datagram
41 have been adapted accordingly.
44 *) RSA_padding_check_PKCS1_type_1 now accepts inputs with and without
48 *) CRIME protection: disable compression by default, even if OpenSSL is
49 compiled with zlib enabled. Applications can still enable compression
50 by calling SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION), or by
51 using the SSL_CONF library to configure compression.
54 *) The signature of the session callback configured with
55 SSL_CTX_sess_set_get_cb was changed. The read-only input buffer
56 was explicitly marked as 'const unsigned char*' instead of
60 *) Always DPURIFY. Remove the use of uninitialized memory in the
61 RNG, and other conditional uses of DPURIFY. This makes -DPURIFY a no-op.
64 *) Removed many obsolete configuration items, including
65 DES_PTR, DES_RISC1, DES_RISC2, DES_INT
66 MD2_CHAR, MD2_INT, MD2_LONG
69 RC2_SHORT, RC2_LONG, RC4_LONG, RC4_CHUNK, RC4_INDEX
70 [Rich Salz, with advice from Andy Polyakov]
72 *) Many BN internals have been moved to an internal header file.
73 [Rich Salz with help from Andy Polyakov]
75 *) Configuration and writing out the results from it has changed.
76 Files such as Makefile include/openssl/opensslconf.h and are now
77 produced through general templates, such as Makefile.in and
78 crypto/opensslconf.h.in and some help from the perl module
81 Also, the center of configuration information is no longer
82 Makefile. Instead, Configure produces a perl module in
83 configdata.pm which holds most of the config data (in the hash
84 table %config), the target data that comes from the target
85 configuration in one of the Configurations/*.conf files (in
89 *) To clarify their intended purposes, the Configure options
90 --prefix and --openssldir change their semantics, and become more
91 straightforward and less interdependent.
93 --prefix shall be used exclusively to give the location INSTALLTOP
94 where programs, scripts, libraries, include files and manuals are
95 going to be installed. The default is now /usr/local.
97 --openssldir shall be used exclusively to give the default
98 location OPENSSLDIR where certificates, private keys, CRLs are
99 managed. This is also where the default openssl.cnf gets
101 If the directory given with this option is a relative path, the
102 values of both the --prefix value and the --openssldir value will
103 be combined to become OPENSSLDIR.
104 The default for --openssldir is INSTALLTOP/ssl.
106 Anyone who uses --openssldir to specify where OpenSSL is to be
107 installed MUST change to use --prefix instead.
110 *) The GOST engine was out of date and therefore it has been removed. An up
111 to date GOST engine is now being maintained in an external repository.
112 See: https://wiki.openssl.org/index.php/Binaries. Libssl still retains
113 support for GOST ciphersuites (these are only activated if a GOST engine
117 *) EGD is no longer supported by default; use enable-egd when
119 [Ben Kaduk and Rich Salz]
121 *) The distribution now has Makefile.in files, which are used to
122 create Makefile's when Configure is run. *Configure must be run
123 before trying to build now.*
126 *) The return value for SSL_CIPHER_description() for error conditions
130 *) Support for RFC6698/RFC7671 DANE TLSA peer authentication.
132 Obtaining and performing DNSSEC validation of TLSA records is
133 the application's responsibility. The application provides
134 the TLSA records of its choice to OpenSSL, and these are then
135 used to authenticate the peer.
137 The TLSA records need not even come from DNS. They can, for
138 example, be used to implement local end-entity certificate or
139 trust-anchor "pinning", where the "pin" data takes the form
140 of TLSA records, which can augment or replace verification
141 based on the usual WebPKI public certification authorities.
144 *) Revert default OPENSSL_NO_DEPRECATED setting. Instead OpenSSL
145 continues to support deprecated interfaces in default builds.
146 However, applications are strongly advised to compile their
147 source files with -DOPENSSL_API_COMPAT=0x10100000L, which hides
148 the declarations of all interfaces deprecated in 0.9.8, 1.0.0
149 or the 1.1.0 releases.
151 In environments in which all applications have been ported to
152 not use any deprecated interfaces OpenSSL's Configure script
153 should be used with the --api=1.1.0 option to entirely remove
154 support for the deprecated features from the library and
155 unconditionally disable them in the installed headers.
156 Essentially the same effect can be achieved with the "no-deprecated"
157 argument to Configure, except that this will always restrict
158 the build to just the latest API, rather than a fixed API
161 As applications are ported to future revisions of the API,
162 they should update their compile-time OPENSSL_API_COMPAT define
163 accordingly, but in most cases should be able to continue to
164 compile with later releases.
166 The OPENSSL_API_COMPAT versions for 1.0.0, and 0.9.8 are
167 0x10000000L and 0x00908000L, respectively. However those
168 versions did not support the OPENSSL_API_COMPAT feature, and
169 so applications are not typically tested for explicit support
170 of just the undeprecated features of either release.
173 *) Add support for setting the minimum and maximum supported protocol.
174 It can bet set via the SSL_set_min_proto_version() and
175 SSL_set_max_proto_version(), or via the SSL_CONF's MinProtocol and
176 MaxProtcol. It's recommended to use the new APIs to disable
177 protocols instead of disabling individual protocols using
178 SSL_set_options() or SSL_CONF's Protocol. This change also
179 removes support for disabling TLS 1.2 in the OpenSSL TLS
180 client at compile time by defining OPENSSL_NO_TLS1_2_CLIENT.
183 *) Support for ChaCha20 and Poly1305 added to libcrypto and libssl.
186 *) New EC_KEY_METHOD, this replaces the older ECDSA_METHOD and ECDH_METHOD
187 and integrates ECDSA and ECDH functionality into EC. Implementations can
188 now redirect key generation and no longer need to convert to or from
191 Note: the ecdsa.h and ecdh.h headers are now no longer needed and just
192 include the ec.h header file instead.
195 *) Remove support for all 40 and 56 bit ciphers. This includes all the export
196 ciphers who are no longer supported and drops support the ephemeral RSA key
197 exchange. The LOW ciphers currently doesn't have any ciphers in it.
200 *) Made EVP_MD_CTX, EVP_MD, EVP_CIPHER_CTX, EVP_CIPHER and HMAC_CTX
201 opaque. For HMAC_CTX, the following constructors and destructors
204 HMAC_CTX *HMAC_CTX_new(void);
205 void HMAC_CTX_free(HMAC_CTX *ctx);
207 For EVP_MD and EVP_CIPHER, complete APIs to create, fill and
208 destroy such methods has been added. See EVP_MD_meth_new(3) and
209 EVP_CIPHER_meth_new(3) for documentation.
212 1) EVP_MD_CTX_cleanup(), EVP_CIPHER_CTX_cleanup() and
213 HMAC_CTX_cleanup() were removed. HMAC_CTX_reset() and
214 EVP_MD_CTX_reset() should be called instead to reinitialise
215 an already created structure.
216 2) For consistency with the majority of our object creators and
217 destructors, EVP_MD_CTX_(create|destroy) were renamed to
218 EVP_MD_CTX_(new|free). The old names are retained as macros
219 for deprecated builds.
222 *) Added ASYNC support. Libcrypto now includes the async sub-library to enable
223 cryptographic operations to be performed asynchronously as long as an
224 asynchronous capable engine is used. See the ASYNC_start_job() man page for
225 further details. Libssl has also had this capability integrated with the
226 introduction of the new mode SSL_MODE_ASYNC and associated error
227 SSL_ERROR_WANT_ASYNC. See the SSL_CTX_set_mode() and SSL_get_error() man
228 pages. This work was developed in partnership with Intel Corp.
231 *) SSL_{CTX_}set_ecdh_auto() has been removed and ECDH is support is
232 always enabled now. If you want to disable the support you should
233 exclude it using the list of supported ciphers. This also means that the
234 "-no_ecdhe" option has been removed from s_server.
237 *) SSL_{CTX}_set_tmp_ecdh() which can set 1 EC curve now internally calls
238 SSL_{CTX_}set1_curves() which can set a list.
241 *) Remove support for SSL_{CTX_}set_tmp_ecdh_callback(). You should set the
242 curve you want to support using SSL_{CTX_}set1_curves().
245 *) State machine rewrite. The state machine code has been significantly
246 refactored in order to remove much duplication of code and solve issues
247 with the old code (see ssl/statem/README for further details). This change
248 does have some associated API changes. Notably the SSL_state() function
249 has been removed and replaced by SSL_get_state which now returns an
250 "OSSL_HANDSHAKE_STATE" instead of an int. SSL_set_state() has been removed
251 altogether. The previous handshake states defined in ssl.h and ssl3.h have
255 *) All instances of the string "ssleay" in the public API were replaced
256 with OpenSSL (case-matching; e.g., OPENSSL_VERSION for #define's)
257 Some error codes related to internal RSA_eay API's were renamed.
260 *) The demo files in crypto/threads were moved to demo/threads.
263 *) Removed obsolete engines: 4758cca, aep, atalla, cswift, nuron, gmp,
265 [Matt Caswell, Rich Salz]
267 *) New ASN.1 embed macro.
269 New ASN.1 macro ASN1_EMBED. This is the same as ASN1_SIMPLE except the
270 structure is not allocated: it is part of the parent. That is instead of
278 This reduces memory fragmentation and make it impossible to accidentally
279 set a mandatory field to NULL.
281 This currently only works for some fields specifically a SEQUENCE, CHOICE,
282 or ASN1_STRING type which is part of a parent SEQUENCE. Since it is
283 equivalent to ASN1_SIMPLE it cannot be tagged, OPTIONAL, SET OF or
287 *) Remove EVP_CHECK_DES_KEY, a compile-time option that never compiled.
290 *) Removed DES and RC4 ciphersuites from DEFAULT. Also removed RC2 although
291 in 1.0.2 EXPORT was already removed and the only RC2 ciphersuite is also
292 an EXPORT one. COMPLEMENTOFDEFAULT has been updated accordingly to add
293 DES and RC4 ciphersuites.
296 *) Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs.
297 This changes the decoding behaviour for some invalid messages,
298 though the change is mostly in the more lenient direction, and
299 legacy behaviour is preserved as much as possible.
302 *) Fix no-stdio build.
303 [ David Woodhouse <David.Woodhouse@intel.com> and also
304 Ivan Nestlerode <ivan.nestlerode@sonos.com> ]
306 *) New testing framework
307 The testing framework has been largely rewritten and is now using
308 perl and the perl modules Test::Harness and an extended variant of
309 Test::More called OpenSSL::Test to do its work. All test scripts in
310 test/ have been rewritten into test recipes, and all direct calls to
311 executables in test/Makefile have become individual recipes using the
312 simplified testing OpenSSL::Test::Simple.
314 For documentation on our testing modules, do:
316 perldoc test/testlib/OpenSSL/Test/Simple.pm
317 perldoc test/testlib/OpenSSL/Test.pm
321 *) Revamped memory debug; only -DCRYPTO_MDEBUG and -DCRYPTO_MDEBUG_ABORT
322 are used; the latter aborts on memory leaks (usually checked on exit).
323 Some undocumented "set malloc, etc., hooks" functions were removed
324 and others were changed. All are now documented.
327 *) In DSA_generate_parameters_ex, if the provided seed is too short,
329 [Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>]
331 *) Rewrite PSK to support ECDHE_PSK, DHE_PSK and RSA_PSK. Add ciphersuites
332 from RFC4279, RFC4785, RFC5487, RFC5489.
334 Thanks to Christian J. Dietrich and Giuseppe D'Angelo for the
335 original RSA_PSK patch.
338 *) Dropped support for the SSL3_FLAGS_DELAY_CLIENT_FINISHED flag. This SSLeay
339 era flag was never set throughout the codebase (only read). Also removed
340 SSL3_FLAGS_POP_BUFFER which was only used if
341 SSL3_FLAGS_DELAY_CLIENT_FINISHED was also set.
344 *) Changed the default name options in the "ca", "crl", "req" and "x509"
345 to be "oneline" instead of "compat".
348 *) Remove SSL_OP_TLS_BLOCK_PADDING_BUG. This is SSLeay legacy, we're
349 not aware of clients that still exhibit this bug, and the workaround
350 hasn't been working properly for a while.
353 *) The return type of BIO_number_read() and BIO_number_written() as well as
354 the corresponding num_read and num_write members in the BIO structure has
355 changed from unsigned long to uint64_t. On platforms where an unsigned
356 long is 32 bits (e.g. Windows) these counters could overflow if >4Gb is
360 *) Given the pervasive nature of TLS extensions it is inadvisable to run
361 OpenSSL without support for them. It also means that maintaining
362 the OPENSSL_NO_TLSEXT option within the code is very invasive (and probably
363 not well tested). Therefore the OPENSSL_NO_TLSEXT option has been removed.
366 *) Removed support for the two export grade static DH ciphersuites
367 EXP-DH-RSA-DES-CBC-SHA and EXP-DH-DSS-DES-CBC-SHA. These two ciphersuites
368 were newly added (along with a number of other static DH ciphersuites) to
369 1.0.2. However the two export ones have *never* worked since they were
370 introduced. It seems strange in any case to be adding new export
371 ciphersuites, and given "logjam" it also does not seem correct to fix them.
374 *) Version negotiation has been rewritten. In particular SSLv23_method(),
375 SSLv23_client_method() and SSLv23_server_method() have been deprecated,
376 and turned into macros which simply call the new preferred function names
377 TLS_method(), TLS_client_method() and TLS_server_method(). All new code
378 should use the new names instead. Also as part of this change the ssl23.h
379 header file has been removed.
382 *) Support for Kerberos ciphersuites in TLS (RFC2712) has been removed. This
383 code and the associated standard is no longer considered fit-for-purpose.
386 *) RT2547 was closed. When generating a private key, try to make the
387 output file readable only by the owner. This behavior change might
388 be noticeable when interacting with other software.
390 *) Documented all exdata functions. Added CRYPTO_free_ex_index.
394 *) Added HTTP GET support to the ocsp command.
397 *) Changed default digest for the dgst and enc commands from MD5 to
401 *) RAND_pseudo_bytes has been deprecated. Users should use RAND_bytes instead.
404 *) Added support for TLS extended master secret from
405 draft-ietf-tls-session-hash-03.txt. Thanks for Alfredo Pironti for an
406 initial patch which was a great help during development.
409 *) All libssl internal structures have been removed from the public header
410 files, and the OPENSSL_NO_SSL_INTERN option has been removed (since it is
411 now redundant). Users should not attempt to access internal structures
412 directly. Instead they should use the provided API functions.
415 *) config has been changed so that by default OPENSSL_NO_DEPRECATED is used.
416 Access to deprecated functions can be re-enabled by running config with
417 "enable-deprecated". In addition applications wishing to use deprecated
418 functions must define OPENSSL_USE_DEPRECATED. Note that this new behaviour
419 will, by default, disable some transitive includes that previously existed
420 in the header files (e.g. ec.h will no longer, by default, include bn.h)
423 *) Added support for OCB mode. OpenSSL has been granted a patent license
424 compatible with the OpenSSL license for use of OCB. Details are available
425 at https://www.openssl.org/source/OCB-patent-grant-OpenSSL.pdf. Support
426 for OCB can be removed by calling config with no-ocb.
429 *) SSLv2 support has been removed. It still supports receiving a SSLv2
430 compatible client hello.
433 *) Increased the minimal RSA keysize from 256 to 512 bits [Rich Salz],
434 done while fixing the error code for the key-too-small case.
435 [Annie Yousar <a.yousar@informatik.hu-berlin.de>]
437 *) CA.sh has been removmed; use CA.pl instead.
440 *) Removed old DES API.
443 *) Remove various unsupported platforms:
449 Sinix/ReliantUNIX RM400
454 16-bit platforms such as WIN16
457 *) Clean up OPENSSL_NO_xxx #define's
458 Use setbuf() and remove OPENSSL_NO_SETVBUF_IONBF
459 Rename OPENSSL_SYSNAME_xxx to OPENSSL_SYS_xxx
460 OPENSSL_NO_EC{DH,DSA} merged into OPENSSL_NO_EC
461 OPENSSL_NO_RIPEMD160, OPENSSL_NO_RIPEMD merged into OPENSSL_NO_RMD160
462 OPENSSL_NO_FP_API merged into OPENSSL_NO_STDIO
463 Remove OPENSSL_NO_BIO OPENSSL_NO_BUFFER OPENSSL_NO_CHAIN_VERIFY
464 OPENSSL_NO_EVP OPENSSL_NO_FIPS_ERR OPENSSL_NO_HASH_COMP
465 OPENSSL_NO_LHASH OPENSSL_NO_OBJECT OPENSSL_NO_SPEED OPENSSL_NO_STACK
466 OPENSSL_NO_X509 OPENSSL_NO_X509_VERIFY
467 Remove MS_STATIC; it's a relic from platforms <32 bits.
470 *) Cleaned up dead code
471 Remove all but one '#ifdef undef' which is to be looked at.
474 *) Clean up calling of xxx_free routines.
475 Just like free(), fix most of the xxx_free routines to accept
476 NULL. Remove the non-null checks from callers. Save much code.
479 *) Add secure heap for storage of private keys (when possible).
480 Add BIO_s_secmem(), CBIGNUM, etc.
481 Contributed by Akamai Technologies under our Corporate CLA.
484 *) Experimental support for a new, fast, unbiased prime candidate generator,
485 bn_probable_prime_dh_coprime(). Not currently used by any prime generator.
486 [Felix Laurie von Massenbach <felix@erbridge.co.uk>]
488 *) New output format NSS in the sess_id command line tool. This allows
489 exporting the session id and the master key in NSS keylog format.
490 [Martin Kaiser <martin@kaiser.cx>]
492 *) Harmonize version and its documentation. -f flag is used to display
494 [mancha <mancha1@zoho.com>]
496 *) Fix eckey_priv_encode so it immediately returns an error upon a failure
497 in i2d_ECPrivateKey. Thanks to Ted Unangst for feedback on this issue.
498 [mancha <mancha1@zoho.com>]
500 *) Fix some double frees. These are not thought to be exploitable.
501 [mancha <mancha1@zoho.com>]
503 *) A missing bounds check in the handling of the TLS heartbeat extension
504 can be used to reveal up to 64k of memory to a connected client or
507 Thanks for Neel Mehta of Google Security for discovering this bug and to
508 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for
509 preparing the fix (CVE-2014-0160)
510 [Adam Langley, Bodo Moeller]
512 *) Fix for the attack described in the paper "Recovering OpenSSL
513 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack"
514 by Yuval Yarom and Naomi Benger. Details can be obtained from:
515 http://eprint.iacr.org/2014/140
517 Thanks to Yuval Yarom and Naomi Benger for discovering this
518 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076)
519 [Yuval Yarom and Naomi Benger]
521 *) Use algorithm specific chains in SSL_CTX_use_certificate_chain_file():
522 this fixes a limitation in previous versions of OpenSSL.
525 *) Experimental encrypt-then-mac support.
527 Experimental support for encrypt then mac from
528 draft-gutmann-tls-encrypt-then-mac-02.txt
530 To enable it set the appropriate extension number (0x42 for the test
531 server) using e.g. -DTLSEXT_TYPE_encrypt_then_mac=0x42
533 For non-compliant peers (i.e. just about everything) this should have no
536 WARNING: EXPERIMENTAL, SUBJECT TO CHANGE.
540 *) Add EVP support for key wrapping algorithms, to avoid problems with
541 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in
542 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap
543 algorithms and include tests cases.
546 *) Extend CMS code to support RSA-PSS signatures and RSA-OAEP for
550 *) Extended RSA OAEP support via EVP_PKEY API. Options to specify digest,
551 MGF1 digest and OAEP label.
554 *) Make openssl verify return errors.
555 [Chris Palmer <palmer@google.com> and Ben Laurie]
557 *) New function ASN1_TIME_diff to calculate the difference between two
558 ASN1_TIME structures or one structure and the current time.
561 *) Update fips_test_suite to support multiple command line options. New
562 test to induce all self test errors in sequence and check expected
566 *) Add FIPS_{rsa,dsa,ecdsa}_{sign,verify} functions which digest and
567 sign or verify all in one operation.
570 *) Add fips_algvs: a multicall fips utility incorporating all the algorithm
571 test programs and fips_test_suite. Includes functionality to parse
572 the minimal script output of fipsalgest.pl directly.
575 *) Add authorisation parameter to FIPS_module_mode_set().
578 *) Add FIPS selftest for ECDH algorithm using P-224 and B-233 curves.
581 *) Use separate DRBG fields for internal and external flags. New function
582 FIPS_drbg_health_check() to perform on demand health checking. Add
583 generation tests to fips_test_suite with reduced health check interval to
584 demonstrate periodic health checking. Add "nodh" option to
585 fips_test_suite to skip very slow DH test.
588 *) New function FIPS_get_cipherbynid() to lookup FIPS supported ciphers
592 *) More extensive health check for DRBG checking many more failure modes.
593 New function FIPS_selftest_drbg_all() to handle every possible DRBG
594 combination: call this in fips_test_suite.
597 *) Add support for Dual EC DRBG from SP800-90. Update DRBG algorithm test
598 and POST to handle Dual EC cases.
601 *) Add support for canonical generation of DSA parameter 'g'. See
604 *) Add support for HMAC DRBG from SP800-90. Update DRBG algorithm test and
605 POST to handle HMAC cases.
608 *) Add functions FIPS_module_version() and FIPS_module_version_text()
609 to return numerical and string versions of the FIPS module number.
612 *) Rename FIPS_mode_set and FIPS_mode to FIPS_module_mode_set and
613 FIPS_module_mode. FIPS_mode and FIPS_mode_set will be implemented
614 outside the validated module in the FIPS capable OpenSSL.
617 *) Minor change to DRBG entropy callback semantics. In some cases
618 there is no multiple of the block length between min_len and
619 max_len. Allow the callback to return more than max_len bytes
620 of entropy but discard any extra: it is the callback's responsibility
621 to ensure that the extra data discarded does not impact the
622 requested amount of entropy.
625 *) Add PRNG security strength checks to RSA, DSA and ECDSA using
626 information in FIPS186-3, SP800-57 and SP800-131A.
629 *) CCM support via EVP. Interface is very similar to GCM case except we
630 must supply all data in one chunk (i.e. no update, final) and the
631 message length must be supplied if AAD is used. Add algorithm test
635 *) Initial version of POST overhaul. Add POST callback to allow the status
636 of POST to be monitored and/or failures induced. Modify fips_test_suite
637 to use callback. Always run all selftests even if one fails.
640 *) XTS support including algorithm test driver in the fips_gcmtest program.
641 Note: this does increase the maximum key length from 32 to 64 bytes but
642 there should be no binary compatibility issues as existing applications
643 will never use XTS mode.
646 *) Extensive reorganisation of FIPS PRNG behaviour. Remove all dependencies
647 to OpenSSL RAND code and replace with a tiny FIPS RAND API which also
648 performs algorithm blocking for unapproved PRNG types. Also do not
649 set PRNG type in FIPS_mode_set(): leave this to the application.
650 Add default OpenSSL DRBG handling: sets up FIPS PRNG and seeds with
651 the standard OpenSSL PRNG: set additional data to a date time vector.
654 *) Rename old X9.31 PRNG functions of the form FIPS_rand* to FIPS_x931*.
655 This shouldn't present any incompatibility problems because applications
656 shouldn't be using these directly and any that are will need to rethink
657 anyway as the X9.31 PRNG is now deprecated by FIPS 140-2
660 *) Extensive self tests and health checking required by SP800-90 DRBG.
661 Remove strength parameter from FIPS_drbg_instantiate and always
662 instantiate at maximum supported strength.
665 *) Add ECDH code to fips module and fips_ecdhvs for primitives only testing.
668 *) New algorithm test program fips_dhvs to handle DH primitives only testing.
671 *) New function DH_compute_key_padded() to compute a DH key and pad with
672 leading zeroes if needed: this complies with SP800-56A et al.
675 *) Initial implementation of SP800-90 DRBGs for Hash and CTR. Not used by
676 anything, incomplete, subject to change and largely untested at present.
679 *) Modify fipscanisteronly build option to only build the necessary object
680 files by filtering FIPS_EX_OBJ through a perl script in crypto/Makefile.
683 *) Add experimental option FIPSSYMS to give all symbols in
684 fipscanister.o and FIPS or fips prefix. This will avoid
685 conflicts with future versions of OpenSSL. Add perl script
686 util/fipsas.pl to preprocess assembly language source files
687 and rename any affected symbols.
690 *) Add selftest checks and algorithm block of non-fips algorithms in
691 FIPS mode. Remove DES2 from selftests.
694 *) Add ECDSA code to fips module. Add tiny fips_ecdsa_check to just
695 return internal method without any ENGINE dependencies. Add new
696 tiny fips sign and verify functions.
699 *) New build option no-ec2m to disable characteristic 2 code.
702 *) New build option "fipscanisteronly". This only builds fipscanister.o
703 and (currently) associated fips utilities. Uses the file Makefile.fips
704 instead of Makefile.org as the prototype.
707 *) Add some FIPS mode restrictions to GCM. Add internal IV generator.
708 Update fips_gcmtest to use IV generator.
711 *) Initial, experimental EVP support for AES-GCM. AAD can be input by
712 setting output buffer to NULL. The *Final function must be
713 called although it will not retrieve any additional data. The tag
714 can be set or retrieved with a ctrl. The IV length is by default 12
715 bytes (96 bits) but can be set to an alternative value. If the IV
716 length exceeds the maximum IV length (currently 16 bytes) it cannot be
720 *) New flag in ciphers: EVP_CIPH_FLAG_CUSTOM_CIPHER. This means the
721 underlying do_cipher function handles all cipher semantics itself
722 including padding and finalisation. This is useful if (for example)
723 an ENGINE cipher handles block padding itself. The behaviour of
724 do_cipher is subtly changed if this flag is set: the return value
725 is the number of characters written to the output buffer (zero is
726 no longer an error code) or a negative error code. Also if the
727 input buffer is NULL and length 0 finalisation should be performed.
730 *) If a candidate issuer certificate is already part of the constructed
731 path ignore it: new debug notification X509_V_ERR_PATH_LOOP for this case.
734 *) Improve forward-security support: add functions
736 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure))
737 void SSL_set_not_resumable_session_callback(SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure))
739 for use by SSL/TLS servers; the callback function will be called whenever a
740 new session is created, and gets to decide whether the session may be
741 cached to make it resumable (return 0) or not (return 1). (As by the
742 SSL/TLS protocol specifications, the session_id sent by the server will be
743 empty to indicate that the session is not resumable; also, the server will
744 not generate RFC 4507 (RFC 5077) session tickets.)
746 A simple reasonable callback implementation is to return is_forward_secure.
747 This parameter will be set to 1 or 0 depending on the ciphersuite selected
748 by the SSL/TLS server library, indicating whether it can provide forward
750 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
752 *) New -verify_name option in command line utilities to set verification
756 *) Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE.
757 Add CMAC pkey methods.
760 *) Experimental renegotiation in s_server -www mode. If the client
761 browses /reneg connection is renegotiated. If /renegcert it is
762 renegotiated requesting a certificate.
765 *) Add an "external" session cache for debugging purposes to s_server. This
766 should help trace issues which normally are only apparent in deployed
767 multi-process servers.
770 *) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where
771 return value is ignored. NB. The functions RAND_add(), RAND_seed(),
772 BIO_set_cipher() and some obscure PEM functions were changed so they
773 can now return an error. The RAND changes required a change to the
774 RAND_METHOD structure.
777 *) New macro __owur for "OpenSSL Warn Unused Result". This makes use of
778 a gcc attribute to warn if the result of a function is ignored. This
779 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h
780 whose return value is often ignored.
783 Changes between 1.0.2e and 1.0.2f [28 Jan 2016]
784 *) DH small subgroups
786 Historically OpenSSL only ever generated DH parameters based on "safe"
787 primes. More recently (in version 1.0.2) support was provided for
788 generating X9.42 style parameter files such as those required for RFC 5114
789 support. The primes used in such files may not be "safe". Where an
790 application is using DH configured with parameters based on primes that are
791 not "safe" then an attacker could use this fact to find a peer's private
792 DH exponent. This attack requires that the attacker complete multiple
793 handshakes in which the peer uses the same private DH exponent. For example
794 this could be used to discover a TLS server's private DH exponent if it's
795 reusing the private DH exponent or it's using a static DH ciphersuite.
797 OpenSSL provides the option SSL_OP_SINGLE_DH_USE for ephemeral DH (DHE) in
798 TLS. It is not on by default. If the option is not set then the server
799 reuses the same private DH exponent for the life of the server process and
800 would be vulnerable to this attack. It is believed that many popular
801 applications do set this option and would therefore not be at risk.
803 The fix for this issue adds an additional check where a "q" parameter is
804 available (as is the case in X9.42 based parameters). This detects the
805 only known attack, and is the only possible defense for static DH
806 ciphersuites. This could have some performance impact.
808 Additionally the SSL_OP_SINGLE_DH_USE option has been switched on by
809 default and cannot be disabled. This could have some performance impact.
811 This issue was reported to OpenSSL by Antonio Sanso (Adobe).
815 *) SSLv2 doesn't block disabled ciphers
817 A malicious client can negotiate SSLv2 ciphers that have been disabled on
818 the server and complete SSLv2 handshakes even if all SSLv2 ciphers have
819 been disabled, provided that the SSLv2 protocol was not also disabled via
822 This issue was reported to OpenSSL on 26th December 2015 by Nimrod Aviram
823 and Sebastian Schinzel.
827 Changes between 1.0.2d and 1.0.2e [3 Dec 2015]
829 *) BN_mod_exp may produce incorrect results on x86_64
831 There is a carry propagating bug in the x86_64 Montgomery squaring
832 procedure. No EC algorithms are affected. Analysis suggests that attacks
833 against RSA and DSA as a result of this defect would be very difficult to
834 perform and are not believed likely. Attacks against DH are considered just
835 feasible (although very difficult) because most of the work necessary to
836 deduce information about a private key may be performed offline. The amount
837 of resources required for such an attack would be very significant and
838 likely only accessible to a limited number of attackers. An attacker would
839 additionally need online access to an unpatched system using the target
840 private key in a scenario with persistent DH parameters and a private
841 key that is shared between multiple clients. For example this can occur by
842 default in OpenSSL DHE based SSL/TLS ciphersuites.
844 This issue was reported to OpenSSL by Hanno Böck.
848 *) Certificate verify crash with missing PSS parameter
850 The signature verification routines will crash with a NULL pointer
851 dereference if presented with an ASN.1 signature using the RSA PSS
852 algorithm and absent mask generation function parameter. Since these
853 routines are used to verify certificate signature algorithms this can be
854 used to crash any certificate verification operation and exploited in a
855 DoS attack. Any application which performs certificate verification is
856 vulnerable including OpenSSL clients and servers which enable client
859 This issue was reported to OpenSSL by Loïc Jonas Etienne (Qnective AG).
863 *) X509_ATTRIBUTE memory leak
865 When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak
866 memory. This structure is used by the PKCS#7 and CMS routines so any
867 application which reads PKCS#7 or CMS data from untrusted sources is
868 affected. SSL/TLS is not affected.
870 This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using
875 *) Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs.
876 This changes the decoding behaviour for some invalid messages,
877 though the change is mostly in the more lenient direction, and
878 legacy behaviour is preserved as much as possible.
881 *) In DSA_generate_parameters_ex, if the provided seed is too short,
883 [Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>]
885 Changes between 1.0.2c and 1.0.2d [9 Jul 2015]
887 *) Alternate chains certificate forgery
889 During certificate verfification, OpenSSL will attempt to find an
890 alternative certificate chain if the first attempt to build such a chain
891 fails. An error in the implementation of this logic can mean that an
892 attacker could cause certain checks on untrusted certificates to be
893 bypassed, such as the CA flag, enabling them to use a valid leaf
894 certificate to act as a CA and "issue" an invalid certificate.
896 This issue was reported to OpenSSL by Adam Langley/David Benjamin
900 Changes between 1.0.2b and 1.0.2c [12 Jun 2015]
902 *) Fix HMAC ABI incompatibility. The previous version introduced an ABI
903 incompatibility in the handling of HMAC. The previous ABI has now been
907 Changes between 1.0.2a and 1.0.2b [11 Jun 2015]
909 *) Malformed ECParameters causes infinite loop
911 When processing an ECParameters structure OpenSSL enters an infinite loop
912 if the curve specified is over a specially malformed binary polynomial
915 This can be used to perform denial of service against any
916 system which processes public keys, certificate requests or
917 certificates. This includes TLS clients and TLS servers with
918 client authentication enabled.
920 This issue was reported to OpenSSL by Joseph Barr-Pixton.
924 *) Exploitable out-of-bounds read in X509_cmp_time
926 X509_cmp_time does not properly check the length of the ASN1_TIME
927 string and can read a few bytes out of bounds. In addition,
928 X509_cmp_time accepts an arbitrary number of fractional seconds in the
931 An attacker can use this to craft malformed certificates and CRLs of
932 various sizes and potentially cause a segmentation fault, resulting in
933 a DoS on applications that verify certificates or CRLs. TLS clients
934 that verify CRLs are affected. TLS clients and servers with client
935 authentication enabled may be affected if they use custom verification
938 This issue was reported to OpenSSL by Robert Swiecki (Google), and
939 independently by Hanno Böck.
943 *) PKCS7 crash with missing EnvelopedContent
945 The PKCS#7 parsing code does not handle missing inner EncryptedContent
946 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs
947 with missing content and trigger a NULL pointer dereference on parsing.
949 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7
950 structures from untrusted sources are affected. OpenSSL clients and
951 servers are not affected.
953 This issue was reported to OpenSSL by Michal Zalewski (Google).
957 *) CMS verify infinite loop with unknown hash function
959 When verifying a signedData message the CMS code can enter an infinite loop
960 if presented with an unknown hash function OID. This can be used to perform
961 denial of service against any system which verifies signedData messages using
963 This issue was reported to OpenSSL by Johannes Bauer.
967 *) Race condition handling NewSessionTicket
969 If a NewSessionTicket is received by a multi-threaded client when attempting to
970 reuse a previous ticket then a race condition can occur potentially leading to
971 a double free of the ticket data.
975 *) Only support 256-bit or stronger elliptic curves with the
976 'ecdh_auto' setting (server) or by default (client). Of supported
977 curves, prefer P-256 (both).
980 Changes between 1.0.2 and 1.0.2a [19 Mar 2015]
982 *) ClientHello sigalgs DoS fix
984 If a client connects to an OpenSSL 1.0.2 server and renegotiates with an
985 invalid signature algorithms extension a NULL pointer dereference will
986 occur. This can be exploited in a DoS attack against the server.
988 This issue was was reported to OpenSSL by David Ramos of Stanford
991 [Stephen Henson and Matt Caswell]
993 *) Multiblock corrupted pointer fix
995 OpenSSL 1.0.2 introduced the "multiblock" performance improvement. This
996 feature only applies on 64 bit x86 architecture platforms that support AES
997 NI instructions. A defect in the implementation of "multiblock" can cause
998 OpenSSL's internal write buffer to become incorrectly set to NULL when
999 using non-blocking IO. Typically, when the user application is using a
1000 socket BIO for writing, this will only result in a failed connection.
1001 However if some other BIO is used then it is likely that a segmentation
1002 fault will be triggered, thus enabling a potential DoS attack.
1004 This issue was reported to OpenSSL by Daniel Danner and Rainer Mueller.
1008 *) Segmentation fault in DTLSv1_listen fix
1010 The DTLSv1_listen function is intended to be stateless and processes the
1011 initial ClientHello from many peers. It is common for user code to loop
1012 over the call to DTLSv1_listen until a valid ClientHello is received with
1013 an associated cookie. A defect in the implementation of DTLSv1_listen means
1014 that state is preserved in the SSL object from one invocation to the next
1015 that can lead to a segmentation fault. Errors processing the initial
1016 ClientHello can trigger this scenario. An example of such an error could be
1017 that a DTLS1.0 only client is attempting to connect to a DTLS1.2 only
1020 This issue was reported to OpenSSL by Per Allansson.
1024 *) Segmentation fault in ASN1_TYPE_cmp fix
1026 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is
1027 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check
1028 certificate signature algorithm consistency this can be used to crash any
1029 certificate verification operation and exploited in a DoS attack. Any
1030 application which performs certificate verification is vulnerable including
1031 OpenSSL clients and servers which enable client authentication.
1035 *) Segmentation fault for invalid PSS parameters fix
1037 The signature verification routines will crash with a NULL pointer
1038 dereference if presented with an ASN.1 signature using the RSA PSS
1039 algorithm and invalid parameters. Since these routines are used to verify
1040 certificate signature algorithms this can be used to crash any
1041 certificate verification operation and exploited in a DoS attack. Any
1042 application which performs certificate verification is vulnerable including
1043 OpenSSL clients and servers which enable client authentication.
1045 This issue was was reported to OpenSSL by Brian Carpenter.
1049 *) ASN.1 structure reuse memory corruption fix
1051 Reusing a structure in ASN.1 parsing may allow an attacker to cause
1052 memory corruption via an invalid write. Such reuse is and has been
1053 strongly discouraged and is believed to be rare.
1055 Applications that parse structures containing CHOICE or ANY DEFINED BY
1056 components may be affected. Certificate parsing (d2i_X509 and related
1057 functions) are however not affected. OpenSSL clients and servers are
1062 *) PKCS7 NULL pointer dereferences fix
1064 The PKCS#7 parsing code does not handle missing outer ContentInfo
1065 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with
1066 missing content and trigger a NULL pointer dereference on parsing.
1068 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or
1069 otherwise parse PKCS#7 structures from untrusted sources are
1070 affected. OpenSSL clients and servers are not affected.
1072 This issue was reported to OpenSSL by Michal Zalewski (Google).
1076 *) DoS via reachable assert in SSLv2 servers fix
1078 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in
1079 servers that both support SSLv2 and enable export cipher suites by sending
1080 a specially crafted SSLv2 CLIENT-MASTER-KEY message.
1082 This issue was discovered by Sean Burford (Google) and Emilia Käsper
1083 (OpenSSL development team).
1087 *) Empty CKE with client auth and DHE fix
1089 If client auth is used then a server can seg fault in the event of a DHE
1090 ciphersuite being selected and a zero length ClientKeyExchange message
1091 being sent by the client. This could be exploited in a DoS attack.
1095 *) Handshake with unseeded PRNG fix
1097 Under certain conditions an OpenSSL 1.0.2 client can complete a handshake
1098 with an unseeded PRNG. The conditions are:
1099 - The client is on a platform where the PRNG has not been seeded
1100 automatically, and the user has not seeded manually
1101 - A protocol specific client method version has been used (i.e. not
1102 SSL_client_methodv23)
1103 - A ciphersuite is used that does not require additional random data from
1104 the PRNG beyond the initial ClientHello client random (e.g. PSK-RC4-SHA).
1106 If the handshake succeeds then the client random that has been used will
1107 have been generated from a PRNG with insufficient entropy and therefore the
1108 output may be predictable.
1110 For example using the following command with an unseeded openssl will
1111 succeed on an unpatched platform:
1113 openssl s_client -psk 1a2b3c4d -tls1_2 -cipher PSK-RC4-SHA
1117 *) Use After Free following d2i_ECPrivatekey error fix
1119 A malformed EC private key file consumed via the d2i_ECPrivateKey function
1120 could cause a use after free condition. This, in turn, could cause a double
1121 free in several private key parsing functions (such as d2i_PrivateKey
1122 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption
1123 for applications that receive EC private keys from untrusted
1124 sources. This scenario is considered rare.
1126 This issue was discovered by the BoringSSL project and fixed in their
1131 *) X509_to_X509_REQ NULL pointer deref fix
1133 The function X509_to_X509_REQ will crash with a NULL pointer dereference if
1134 the certificate key is invalid. This function is rarely used in practice.
1136 This issue was discovered by Brian Carpenter.
1140 *) Removed the export ciphers from the DEFAULT ciphers
1143 Changes between 1.0.1l and 1.0.2 [22 Jan 2015]
1145 *) Facilitate "universal" ARM builds targeting range of ARM ISAs, e.g.
1146 ARMv5 through ARMv8, as opposite to "locking" it to single one.
1147 So far those who have to target multiple plaforms would compromise
1148 and argue that binary targeting say ARMv5 would still execute on
1149 ARMv8. "Universal" build resolves this compromise by providing
1150 near-optimal performance even on newer platforms.
1153 *) Accelerated NIST P-256 elliptic curve implementation for x86_64
1154 (other platforms pending).
1155 [Shay Gueron & Vlad Krasnov (Intel Corp), Andy Polyakov]
1157 *) Add support for the SignedCertificateTimestampList certificate and
1158 OCSP response extensions from RFC6962.
1161 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.)
1162 for corner cases. (Certain input points at infinity could lead to
1163 bogus results, with non-infinity inputs mapped to infinity too.)
1166 *) Initial support for PowerISA 2.0.7, first implemented in POWER8.
1167 This covers AES, SHA256/512 and GHASH. "Initial" means that most
1168 common cases are optimized and there still is room for further
1169 improvements. Vector Permutation AES for Altivec is also added.
1172 *) Add support for little-endian ppc64 Linux target.
1173 [Marcelo Cerri (IBM)]
1175 *) Initial support for AMRv8 ISA crypto extensions. This covers AES,
1176 SHA1, SHA256 and GHASH. "Initial" means that most common cases
1177 are optimized and there still is room for further improvements.
1178 Both 32- and 64-bit modes are supported.
1179 [Andy Polyakov, Ard Biesheuvel (Linaro)]
1181 *) Improved ARMv7 NEON support.
1184 *) Support for SPARC Architecture 2011 crypto extensions, first
1185 implemented in SPARC T4. This covers AES, DES, Camellia, SHA1,
1186 SHA256/512, MD5, GHASH and modular exponentiation.
1187 [Andy Polyakov, David Miller]
1189 *) Accelerated modular exponentiation for Intel processors, a.k.a.
1191 [Shay Gueron & Vlad Krasnov (Intel Corp)]
1193 *) Support for new and upcoming Intel processors, including AVX2,
1194 BMI and SHA ISA extensions. This includes additional "stitched"
1195 implementations, AESNI-SHA256 and GCM, and multi-buffer support
1198 This work was sponsored by Intel Corp.
1201 *) Support for DTLS 1.2. This adds two sets of DTLS methods: DTLS_*_method()
1202 supports both DTLS 1.2 and 1.0 and should use whatever version the peer
1203 supports and DTLSv1_2_*_method() which supports DTLS 1.2 only.
1206 *) Use algorithm specific chains in SSL_CTX_use_certificate_chain_file():
1207 this fixes a limiation in previous versions of OpenSSL.
1210 *) Extended RSA OAEP support via EVP_PKEY API. Options to specify digest,
1211 MGF1 digest and OAEP label.
1214 *) Add EVP support for key wrapping algorithms, to avoid problems with
1215 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in
1216 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap
1217 algorithms and include tests cases.
1220 *) Add functions to allocate and set the fields of an ECDSA_METHOD
1222 [Douglas E. Engert, Steve Henson]
1224 *) New functions OPENSSL_gmtime_diff and ASN1_TIME_diff to find the
1225 difference in days and seconds between two tm or ASN1_TIME structures.
1228 *) Add -rev test option to s_server to just reverse order of characters
1229 received by client and send back to server. Also prints an abbreviated
1230 summary of the connection parameters.
1233 *) New option -brief for s_client and s_server to print out a brief summary
1234 of connection parameters.
1237 *) Add callbacks for arbitrary TLS extensions.
1238 [Trevor Perrin <trevp@trevp.net> and Ben Laurie]
1240 *) New option -crl_download in several openssl utilities to download CRLs
1241 from CRLDP extension in certificates.
1244 *) New options -CRL and -CRLform for s_client and s_server for CRLs.
1247 *) New function X509_CRL_diff to generate a delta CRL from the difference
1248 of two full CRLs. Add support to "crl" utility.
1251 *) New functions to set lookup_crls function and to retrieve
1252 X509_STORE from X509_STORE_CTX.
1255 *) Print out deprecated issuer and subject unique ID fields in
1259 *) Extend OCSP I/O functions so they can be used for simple general purpose
1260 HTTP as well as OCSP. New wrapper function which can be used to download
1261 CRLs using the OCSP API.
1264 *) Delegate command line handling in s_client/s_server to SSL_CONF APIs.
1267 *) SSL_CONF* functions. These provide a common framework for application
1268 configuration using configuration files or command lines.
1271 *) SSL/TLS tracing code. This parses out SSL/TLS records using the
1272 message callback and prints the results. Needs compile time option
1273 "enable-ssl-trace". New options to s_client and s_server to enable
1277 *) New ctrl and macro to retrieve supported points extensions.
1278 Print out extension in s_server and s_client.
1281 *) New functions to retrieve certificate signature and signature
1285 *) Add functions to retrieve and manipulate the raw cipherlist sent by a
1289 *) New Suite B modes for TLS code. These use and enforce the requirements
1290 of RFC6460: restrict ciphersuites, only permit Suite B algorithms and
1291 only use Suite B curves. The Suite B modes can be set by using the
1292 strings "SUITEB128", "SUITEB192" or "SUITEB128ONLY" for the cipherstring.
1295 *) New chain verification flags for Suite B levels of security. Check
1296 algorithms are acceptable when flags are set in X509_verify_cert.
1299 *) Make tls1_check_chain return a set of flags indicating checks passed
1300 by a certificate chain. Add additional tests to handle client
1301 certificates: checks for matching certificate type and issuer name
1305 *) If an attempt is made to use a signature algorithm not in the peer
1306 preference list abort the handshake. If client has no suitable
1307 signature algorithms in response to a certificate request do not
1308 use the certificate.
1311 *) If server EC tmp key is not in client preference list abort handshake.
1314 *) Add support for certificate stores in CERT structure. This makes it
1315 possible to have different stores per SSL structure or one store in
1316 the parent SSL_CTX. Include distint stores for certificate chain
1317 verification and chain building. New ctrl SSL_CTRL_BUILD_CERT_CHAIN
1318 to build and store a certificate chain in CERT structure: returing
1319 an error if the chain cannot be built: this will allow applications
1320 to test if a chain is correctly configured.
1322 Note: if the CERT based stores are not set then the parent SSL_CTX
1323 store is used to retain compatibility with existing behaviour.
1327 *) New function ssl_set_client_disabled to set a ciphersuite disabled
1328 mask based on the current session, check mask when sending client
1329 hello and checking the requested ciphersuite.
1332 *) New ctrls to retrieve and set certificate types in a certificate
1333 request message. Print out received values in s_client. If certificate
1334 types is not set with custom values set sensible values based on
1335 supported signature algorithms.
1338 *) Support for distinct client and server supported signature algorithms.
1341 *) Add certificate callback. If set this is called whenever a certificate
1342 is required by client or server. An application can decide which
1343 certificate chain to present based on arbitrary criteria: for example
1344 supported signature algorithms. Add very simple example to s_server.
1345 This fixes many of the problems and restrictions of the existing client
1346 certificate callback: for example you can now clear an existing
1347 certificate and specify the whole chain.
1350 *) Add new "valid_flags" field to CERT_PKEY structure which determines what
1351 the certificate can be used for (if anything). Set valid_flags field
1352 in new tls1_check_chain function. Simplify ssl_set_cert_masks which used
1353 to have similar checks in it.
1355 Add new "cert_flags" field to CERT structure and include a "strict mode".
1356 This enforces some TLS certificate requirements (such as only permitting
1357 certificate signature algorithms contained in the supported algorithms
1358 extension) which some implementations ignore: this option should be used
1359 with caution as it could cause interoperability issues.
1362 *) Update and tidy signature algorithm extension processing. Work out
1363 shared signature algorithms based on preferences and peer algorithms
1364 and print them out in s_client and s_server. Abort handshake if no
1365 shared signature algorithms.
1368 *) Add new functions to allow customised supported signature algorithms
1369 for SSL and SSL_CTX structures. Add options to s_client and s_server
1373 *) New function SSL_certs_clear() to delete all references to certificates
1374 from an SSL structure. Before this once a certificate had been added
1375 it couldn't be removed.
1378 *) Integrate hostname, email address and IP address checking with certificate
1379 verification. New verify options supporting checking in opensl utility.
1382 *) Fixes and wildcard matching support to hostname and email checking
1383 functions. Add manual page.
1384 [Florian Weimer (Red Hat Product Security Team)]
1386 *) New functions to check a hostname email or IP address against a
1387 certificate. Add options x509 utility to print results of checks against
1391 *) Fix OCSP checking.
1392 [Rob Stradling <rob.stradling@comodo.com> and Ben Laurie]
1394 *) Initial experimental support for explicitly trusted non-root CAs.
1395 OpenSSL still tries to build a complete chain to a root but if an
1396 intermediate CA has a trust setting included that is used. The first
1397 setting is used: whether to trust (e.g., -addtrust option to the x509
1401 *) Add -trusted_first option which attempts to find certificates in the
1402 trusted store even if an untrusted chain is also supplied.
1405 *) MIPS assembly pack updates: support for MIPS32r2 and SmartMIPS ASE,
1406 platform support for Linux and Android.
1409 *) Support for linux-x32, ILP32 environment in x86_64 framework.
1412 *) Experimental multi-implementation support for FIPS capable OpenSSL.
1413 When in FIPS mode the approved implementations are used as normal,
1414 when not in FIPS mode the internal unapproved versions are used instead.
1415 This means that the FIPS capable OpenSSL isn't forced to use the
1416 (often lower performance) FIPS implementations outside FIPS mode.
1419 *) Transparently support X9.42 DH parameters when calling
1420 PEM_read_bio_DHparameters. This means existing applications can handle
1421 the new parameter format automatically.
1424 *) Initial experimental support for X9.42 DH parameter format: mainly
1425 to support use of 'q' parameter for RFC5114 parameters.
1428 *) Add DH parameters from RFC5114 including test data to dhtest.
1431 *) Support for automatic EC temporary key parameter selection. If enabled
1432 the most preferred EC parameters are automatically used instead of
1433 hardcoded fixed parameters. Now a server just has to call:
1434 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically
1435 support ECDH and use the most appropriate parameters.
1438 *) Enhance and tidy EC curve and point format TLS extension code. Use
1439 static structures instead of allocation if default values are used.
1440 New ctrls to set curves we wish to support and to retrieve shared curves.
1441 Print out shared curves in s_server. New options to s_server and s_client
1442 to set list of supported curves.
1445 *) New ctrls to retrieve supported signature algorithms and
1446 supported curve values as an array of NIDs. Extend openssl utility
1447 to print out received values.
1450 *) Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert
1451 between NIDs and the more common NIST names such as "P-256". Enhance
1452 ecparam utility and ECC method to recognise the NIST names for curves.
1455 *) Enhance SSL/TLS certificate chain handling to support different
1456 chains for each certificate instead of one chain in the parent SSL_CTX.
1459 *) Support for fixed DH ciphersuite client authentication: where both
1460 server and client use DH certificates with common parameters.
1463 *) Support for fixed DH ciphersuites: those requiring DH server
1467 *) New function i2d_re_X509_tbs for re-encoding the TBS portion of
1469 Note: Related 1.0.2-beta specific macros X509_get_cert_info,
1470 X509_CINF_set_modified, X509_CINF_get_issuer, X509_CINF_get_extensions and
1471 X509_CINF_get_signature were reverted post internal team review.
1473 Changes between 1.0.1k and 1.0.1l [15 Jan 2015]
1475 *) Build fixes for the Windows and OpenVMS platforms
1476 [Matt Caswell and Richard Levitte]
1478 Changes between 1.0.1j and 1.0.1k [8 Jan 2015]
1480 *) Fix DTLS segmentation fault in dtls1_get_record. A carefully crafted DTLS
1481 message can cause a segmentation fault in OpenSSL due to a NULL pointer
1482 dereference. This could lead to a Denial Of Service attack. Thanks to
1483 Markus Stenberg of Cisco Systems, Inc. for reporting this issue.
1487 *) Fix DTLS memory leak in dtls1_buffer_record. A memory leak can occur in the
1488 dtls1_buffer_record function under certain conditions. In particular this
1489 could occur if an attacker sent repeated DTLS records with the same
1490 sequence number but for the next epoch. The memory leak could be exploited
1491 by an attacker in a Denial of Service attack through memory exhaustion.
1492 Thanks to Chris Mueller for reporting this issue.
1496 *) Fix issue where no-ssl3 configuration sets method to NULL. When openssl is
1497 built with the no-ssl3 option and a SSL v3 ClientHello is received the ssl
1498 method would be set to NULL which could later result in a NULL pointer
1499 dereference. Thanks to Frank Schmirler for reporting this issue.
1503 *) Abort handshake if server key exchange message is omitted for ephemeral
1506 Thanks to Karthikeyan Bhargavan of the PROSECCO team at INRIA for
1507 reporting this issue.
1511 *) Remove non-export ephemeral RSA code on client and server. This code
1512 violated the TLS standard by allowing the use of temporary RSA keys in
1513 non-export ciphersuites and could be used by a server to effectively
1514 downgrade the RSA key length used to a value smaller than the server
1515 certificate. Thanks for Karthikeyan Bhargavan of the PROSECCO team at
1516 INRIA or reporting this issue.
1520 *) Fixed issue where DH client certificates are accepted without verification.
1521 An OpenSSL server will accept a DH certificate for client authentication
1522 without the certificate verify message. This effectively allows a client to
1523 authenticate without the use of a private key. This only affects servers
1524 which trust a client certificate authority which issues certificates
1525 containing DH keys: these are extremely rare and hardly ever encountered.
1526 Thanks for Karthikeyan Bhargavan of the PROSECCO team at INRIA or reporting
1531 *) Ensure that the session ID context of an SSL is updated when its
1532 SSL_CTX is updated via SSL_set_SSL_CTX.
1534 The session ID context is typically set from the parent SSL_CTX,
1535 and can vary with the CTX.
1538 *) Fix various certificate fingerprint issues.
1540 By using non-DER or invalid encodings outside the signed portion of a
1541 certificate the fingerprint can be changed without breaking the signature.
1542 Although no details of the signed portion of the certificate can be changed
1543 this can cause problems with some applications: e.g. those using the
1544 certificate fingerprint for blacklists.
1546 1. Reject signatures with non zero unused bits.
1548 If the BIT STRING containing the signature has non zero unused bits reject
1549 the signature. All current signature algorithms require zero unused bits.
1551 2. Check certificate algorithm consistency.
1553 Check the AlgorithmIdentifier inside TBS matches the one in the
1554 certificate signature. NB: this will result in signature failure
1555 errors for some broken certificates.
1557 Thanks to Konrad Kraszewski from Google for reporting this issue.
1559 3. Check DSA/ECDSA signatures use DER.
1561 Reencode DSA/ECDSA signatures and compare with the original received
1562 signature. Return an error if there is a mismatch.
1564 This will reject various cases including garbage after signature
1565 (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS
1566 program for discovering this case) and use of BER or invalid ASN.1 INTEGERs
1567 (negative or with leading zeroes).
1569 Further analysis was conducted and fixes were developed by Stephen Henson
1570 of the OpenSSL core team.
1575 *) Correct Bignum squaring. Bignum squaring (BN_sqr) may produce incorrect
1576 results on some platforms, including x86_64. This bug occurs at random
1577 with a very low probability, and is not known to be exploitable in any
1578 way, though its exact impact is difficult to determine. Thanks to Pieter
1579 Wuille (Blockstream) who reported this issue and also suggested an initial
1580 fix. Further analysis was conducted by the OpenSSL development team and
1581 Adam Langley of Google. The final fix was developed by Andy Polyakov of
1582 the OpenSSL core team.
1586 *) Do not resume sessions on the server if the negotiated protocol
1587 version does not match the session's version. Resuming with a different
1588 version, while not strictly forbidden by the RFC, is of questionable
1589 sanity and breaks all known clients.
1590 [David Benjamin, Emilia Käsper]
1592 *) Tighten handling of the ChangeCipherSpec (CCS) message: reject
1593 early CCS messages during renegotiation. (Note that because
1594 renegotiation is encrypted, this early CCS was not exploitable.)
1597 *) Tighten client-side session ticket handling during renegotiation:
1598 ensure that the client only accepts a session ticket if the server sends
1599 the extension anew in the ServerHello. Previously, a TLS client would
1600 reuse the old extension state and thus accept a session ticket if one was
1601 announced in the initial ServerHello.
1603 Similarly, ensure that the client requires a session ticket if one
1604 was advertised in the ServerHello. Previously, a TLS client would
1605 ignore a missing NewSessionTicket message.
1608 Changes between 1.0.1i and 1.0.1j [15 Oct 2014]
1610 *) SRTP Memory Leak.
1612 A flaw in the DTLS SRTP extension parsing code allows an attacker, who
1613 sends a carefully crafted handshake message, to cause OpenSSL to fail
1614 to free up to 64k of memory causing a memory leak. This could be
1615 exploited in a Denial Of Service attack. This issue affects OpenSSL
1616 1.0.1 server implementations for both SSL/TLS and DTLS regardless of
1617 whether SRTP is used or configured. Implementations of OpenSSL that
1618 have been compiled with OPENSSL_NO_SRTP defined are not affected.
1620 The fix was developed by the OpenSSL team.
1624 *) Session Ticket Memory Leak.
1626 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the
1627 integrity of that ticket is first verified. In the event of a session
1628 ticket integrity check failing, OpenSSL will fail to free memory
1629 causing a memory leak. By sending a large number of invalid session
1630 tickets an attacker could exploit this issue in a Denial Of Service
1635 *) Build option no-ssl3 is incomplete.
1637 When OpenSSL is configured with "no-ssl3" as a build option, servers
1638 could accept and complete a SSL 3.0 handshake, and clients could be
1639 configured to send them.
1641 [Akamai and the OpenSSL team]
1643 *) Add support for TLS_FALLBACK_SCSV.
1644 Client applications doing fallback retries should call
1645 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV).
1647 [Adam Langley, Bodo Moeller]
1649 *) Add additional DigestInfo checks.
1651 Reencode DigestInto in DER and check against the original when
1652 verifying RSA signature: this will reject any improperly encoded
1653 DigestInfo structures.
1655 Note: this is a precautionary measure and no attacks are currently known.
1659 Changes between 1.0.1h and 1.0.1i [6 Aug 2014]
1661 *) Fix SRP buffer overrun vulnerability. Invalid parameters passed to the
1662 SRP code can be overrun an internal buffer. Add sanity check that
1663 g, A, B < N to SRP code.
1665 Thanks to Sean Devlin and Watson Ladd of Cryptography Services, NCC
1666 Group for discovering this issue.
1670 *) A flaw in the OpenSSL SSL/TLS server code causes the server to negotiate
1671 TLS 1.0 instead of higher protocol versions when the ClientHello message
1672 is badly fragmented. This allows a man-in-the-middle attacker to force a
1673 downgrade to TLS 1.0 even if both the server and the client support a
1674 higher protocol version, by modifying the client's TLS records.
1676 Thanks to David Benjamin and Adam Langley (Google) for discovering and
1677 researching this issue.
1681 *) OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject
1682 to a denial of service attack. A malicious server can crash the client
1683 with a null pointer dereference (read) by specifying an anonymous (EC)DH
1684 ciphersuite and sending carefully crafted handshake messages.
1686 Thanks to Felix Gröbert (Google) for discovering and researching this
1691 *) By sending carefully crafted DTLS packets an attacker could cause openssl
1692 to leak memory. This can be exploited through a Denial of Service attack.
1693 Thanks to Adam Langley for discovering and researching this issue.
1697 *) An attacker can force openssl to consume large amounts of memory whilst
1698 processing DTLS handshake messages. This can be exploited through a
1699 Denial of Service attack.
1700 Thanks to Adam Langley for discovering and researching this issue.
1704 *) An attacker can force an error condition which causes openssl to crash
1705 whilst processing DTLS packets due to memory being freed twice. This
1706 can be exploited through a Denial of Service attack.
1707 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching
1712 *) If a multithreaded client connects to a malicious server using a resumed
1713 session and the server sends an ec point format extension it could write
1714 up to 255 bytes to freed memory.
1716 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this
1721 *) A malicious server can crash an OpenSSL client with a null pointer
1722 dereference (read) by specifying an SRP ciphersuite even though it was not
1723 properly negotiated with the client. This can be exploited through a
1724 Denial of Service attack.
1726 Thanks to Joonas Kuorilehto and Riku Hietamäki (Codenomicon) for
1727 discovering and researching this issue.
1731 *) A flaw in OBJ_obj2txt may cause pretty printing functions such as
1732 X509_name_oneline, X509_name_print_ex et al. to leak some information
1733 from the stack. Applications may be affected if they echo pretty printing
1734 output to the attacker.
1736 Thanks to Ivan Fratric (Google) for discovering this issue.
1738 [Emilia Käsper, and Steve Henson]
1740 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.)
1741 for corner cases. (Certain input points at infinity could lead to
1742 bogus results, with non-infinity inputs mapped to infinity too.)
1745 Changes between 1.0.1g and 1.0.1h [5 Jun 2014]
1747 *) Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted
1748 handshake can force the use of weak keying material in OpenSSL
1749 SSL/TLS clients and servers.
1751 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and
1752 researching this issue. (CVE-2014-0224)
1753 [KIKUCHI Masashi, Steve Henson]
1755 *) Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an
1756 OpenSSL DTLS client the code can be made to recurse eventually crashing
1759 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue.
1761 [Imre Rad, Steve Henson]
1763 *) Fix DTLS invalid fragment vulnerability. A buffer overrun attack can
1764 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS
1765 client or server. This is potentially exploitable to run arbitrary
1766 code on a vulnerable client or server.
1768 Thanks to Jüri Aedla for reporting this issue. (CVE-2014-0195)
1769 [Jüri Aedla, Steve Henson]
1771 *) Fix bug in TLS code where clients enable anonymous ECDH ciphersuites
1772 are subject to a denial of service attack.
1774 Thanks to Felix Gröbert and Ivan Fratric at Google for discovering
1775 this issue. (CVE-2014-3470)
1776 [Felix Gröbert, Ivan Fratric, Steve Henson]
1778 *) Harmonize version and its documentation. -f flag is used to display
1780 [mancha <mancha1@zoho.com>]
1782 *) Fix eckey_priv_encode so it immediately returns an error upon a failure
1783 in i2d_ECPrivateKey.
1784 [mancha <mancha1@zoho.com>]
1786 *) Fix some double frees. These are not thought to be exploitable.
1787 [mancha <mancha1@zoho.com>]
1789 Changes between 1.0.1f and 1.0.1g [7 Apr 2014]
1791 *) A missing bounds check in the handling of the TLS heartbeat extension
1792 can be used to reveal up to 64k of memory to a connected client or
1795 Thanks for Neel Mehta of Google Security for discovering this bug and to
1796 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for
1797 preparing the fix (CVE-2014-0160)
1798 [Adam Langley, Bodo Moeller]
1800 *) Fix for the attack described in the paper "Recovering OpenSSL
1801 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack"
1802 by Yuval Yarom and Naomi Benger. Details can be obtained from:
1803 http://eprint.iacr.org/2014/140
1805 Thanks to Yuval Yarom and Naomi Benger for discovering this
1806 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076)
1807 [Yuval Yarom and Naomi Benger]
1809 *) TLS pad extension: draft-agl-tls-padding-03
1811 Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the
1812 TLS client Hello record length value would otherwise be > 255 and
1813 less that 512 pad with a dummy extension containing zeroes so it
1814 is at least 512 bytes long.
1816 [Adam Langley, Steve Henson]
1818 Changes between 1.0.1e and 1.0.1f [6 Jan 2014]
1820 *) Fix for TLS record tampering bug. A carefully crafted invalid
1821 handshake could crash OpenSSL with a NULL pointer exception.
1822 Thanks to Anton Johansson for reporting this issues.
1825 *) Keep original DTLS digest and encryption contexts in retransmission
1826 structures so we can use the previous session parameters if they need
1827 to be resent. (CVE-2013-6450)
1830 *) Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which
1831 avoids preferring ECDHE-ECDSA ciphers when the client appears to be
1832 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for
1833 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug
1834 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing
1835 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer.
1836 [Rob Stradling, Adam Langley]
1838 Changes between 1.0.1d and 1.0.1e [11 Feb 2013]
1840 *) Correct fix for CVE-2013-0169. The original didn't work on AES-NI
1841 supporting platforms or when small records were transferred.
1842 [Andy Polyakov, Steve Henson]
1844 Changes between 1.0.1c and 1.0.1d [5 Feb 2013]
1846 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
1848 This addresses the flaw in CBC record processing discovered by
1849 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
1850 at: http://www.isg.rhul.ac.uk/tls/
1852 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1853 Security Group at Royal Holloway, University of London
1854 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
1855 Emilia Käsper for the initial patch.
1857 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
1859 *) Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode
1860 ciphersuites which can be exploited in a denial of service attack.
1861 Thanks go to and to Adam Langley <agl@chromium.org> for discovering
1862 and detecting this bug and to Wolfgang Ettlinger
1863 <wolfgang.ettlinger@gmail.com> for independently discovering this issue.
1867 *) Return an error when checking OCSP signatures when key is NULL.
1868 This fixes a DoS attack. (CVE-2013-0166)
1871 *) Make openssl verify return errors.
1872 [Chris Palmer <palmer@google.com> and Ben Laurie]
1874 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
1875 the right response is stapled. Also change SSL_get_certificate()
1876 so it returns the certificate actually sent.
1877 See http://rt.openssl.org/Ticket/Display.html?id=2836.
1878 [Rob Stradling <rob.stradling@comodo.com>]
1880 *) Fix possible deadlock when decoding public keys.
1883 *) Don't use TLS 1.0 record version number in initial client hello
1887 Changes between 1.0.1b and 1.0.1c [10 May 2012]
1889 *) Sanity check record length before skipping explicit IV in TLS
1890 1.2, 1.1 and DTLS to fix DoS attack.
1892 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
1893 fuzzing as a service testing platform.
1897 *) Initialise tkeylen properly when encrypting CMS messages.
1898 Thanks to Solar Designer of Openwall for reporting this issue.
1901 *) In FIPS mode don't try to use composite ciphers as they are not
1905 Changes between 1.0.1a and 1.0.1b [26 Apr 2012]
1907 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and
1908 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately
1909 mean any application compiled against OpenSSL 1.0.0 headers setting
1910 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng
1911 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to
1912 0x10000000L Any application which was previously compiled against
1913 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1
1914 will need to be recompiled as a result. Letting be results in
1915 inability to disable specifically TLS 1.1 and in client context,
1916 in unlike event, limit maximum offered version to TLS 1.0 [see below].
1919 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not
1920 disable just protocol X, but all protocols above X *if* there are
1921 protocols *below* X still enabled. In more practical terms it means
1922 that if application wants to disable TLS1.0 in favor of TLS1.1 and
1923 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass
1924 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to
1928 Changes between 1.0.1 and 1.0.1a [19 Apr 2012]
1930 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
1931 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
1932 in CRYPTO_realloc_clean.
1934 Thanks to Tavis Ormandy, Google Security Team, for discovering this
1935 issue and to Adam Langley <agl@chromium.org> for fixing it.
1937 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
1939 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections.
1942 *) Workarounds for some broken servers that "hang" if a client hello
1943 record length exceeds 255 bytes.
1945 1. Do not use record version number > TLS 1.0 in initial client
1946 hello: some (but not all) hanging servers will now work.
1947 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate
1948 the number of ciphers sent in the client hello. This should be
1949 set to an even number, such as 50, for example by passing:
1950 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure.
1951 Most broken servers should now work.
1952 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable
1953 TLS 1.2 client support entirely.
1956 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH.
1959 Changes between 1.0.0h and 1.0.1 [14 Mar 2012]
1961 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
1962 STRING form instead of a DigestInfo.
1965 *) The format used for MDC2 RSA signatures is inconsistent between EVP
1966 and the RSA_sign/RSA_verify functions. This was made more apparent when
1967 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
1968 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect
1969 the correct format in RSA_verify so both forms transparently work.
1972 *) Some servers which support TLS 1.0 can choke if we initially indicate
1973 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
1974 encrypted premaster secret. As a workaround use the maximum permitted
1975 client version in client hello, this should keep such servers happy
1976 and still work with previous versions of OpenSSL.
1979 *) Add support for TLS/DTLS heartbeats.
1980 [Robin Seggelmann <seggelmann@fh-muenster.de>]
1982 *) Add support for SCTP.
1983 [Robin Seggelmann <seggelmann@fh-muenster.de>]
1985 *) Improved PRNG seeding for VOS.
1986 [Paul Green <Paul.Green@stratus.com>]
1988 *) Extensive assembler packs updates, most notably:
1990 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
1991 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
1992 - x86_64: bit-sliced AES implementation;
1993 - ARM: NEON support, contemporary platforms optimizations;
1994 - s390x: z196 support;
1995 - *: GHASH and GF(2^m) multiplication implementations;
1999 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
2000 (removal of unnecessary code)
2001 [Peter Sylvester <peter.sylvester@edelweb.fr>]
2003 *) Add TLS key material exporter from RFC 5705.
2006 *) Add DTLS-SRTP negotiation from RFC 5764.
2009 *) Add Next Protocol Negotiation,
2010 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
2011 disabled with a no-npn flag to config or Configure. Code donated
2013 [Adam Langley <agl@google.com> and Ben Laurie]
2015 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
2016 NIST-P256, NIST-P521, with constant-time single point multiplication on
2017 typical inputs. Compiler support for the nonstandard type __uint128_t is
2018 required to use this (present in gcc 4.4 and later, for 64-bit builds).
2019 Code made available under Apache License version 2.0.
2021 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
2022 line to include this in your build of OpenSSL, and run "make depend" (or
2023 "make update"). This enables the following EC_METHODs:
2025 EC_GFp_nistp224_method()
2026 EC_GFp_nistp256_method()
2027 EC_GFp_nistp521_method()
2029 EC_GROUP_new_by_curve_name() will automatically use these (while
2030 EC_GROUP_new_curve_GFp() currently prefers the more flexible
2032 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
2034 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
2035 all platforms. Move ssize_t definition from e_os.h to the public
2036 header file e_os2.h as it now appears in public header file cms.h
2039 *) New -sigopt option to the ca, req and x509 utilities. Additional
2040 signature parameters can be passed using this option and in
2044 *) Add RSA PSS signing function. This will generate and set the
2045 appropriate AlgorithmIdentifiers for PSS based on those in the
2046 corresponding EVP_MD_CTX structure. No application support yet.
2049 *) Support for companion algorithm specific ASN1 signing routines.
2050 New function ASN1_item_sign_ctx() signs a pre-initialised
2051 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
2052 the appropriate parameters.
2055 *) Add new algorithm specific ASN1 verification initialisation function
2056 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
2057 handling will be the same no matter what EVP_PKEY_METHOD is used.
2058 Add a PSS handler to support verification of PSS signatures: checked
2059 against a number of sample certificates.
2062 *) Add signature printing for PSS. Add PSS OIDs.
2063 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
2065 *) Add algorithm specific signature printing. An individual ASN1 method
2066 can now print out signatures instead of the standard hex dump.
2068 More complex signatures (e.g. PSS) can print out more meaningful
2069 information. Include DSA version that prints out the signature
2073 *) Password based recipient info support for CMS library: implementing
2077 *) Split password based encryption into PBES2 and PBKDF2 functions. This
2078 neatly separates the code into cipher and PBE sections and is required
2079 for some algorithms that split PBES2 into separate pieces (such as
2080 password based CMS).
2083 *) Session-handling fixes:
2084 - Fix handling of connections that are resuming with a session ID,
2085 but also support Session Tickets.
2086 - Fix a bug that suppressed issuing of a new ticket if the client
2087 presented a ticket with an expired session.
2088 - Try to set the ticket lifetime hint to something reasonable.
2089 - Make tickets shorter by excluding irrelevant information.
2090 - On the client side, don't ignore renewed tickets.
2091 [Adam Langley, Bodo Moeller (Google)]
2093 *) Fix PSK session representation.
2096 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
2098 This work was sponsored by Intel.
2101 *) Add GCM support to TLS library. Some custom code is needed to split
2102 the IV between the fixed (from PRF) and explicit (from TLS record)
2103 portions. This adds all GCM ciphersuites supported by RFC5288 and
2104 RFC5289. Generalise some AES* cipherstrings to include GCM and
2105 add a special AESGCM string for GCM only.
2108 *) Expand range of ctrls for AES GCM. Permit setting invocation
2109 field on decrypt and retrieval of invocation field only on encrypt.
2112 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
2113 As required by RFC5289 these ciphersuites cannot be used if for
2114 versions of TLS earlier than 1.2.
2117 *) For FIPS capable OpenSSL interpret a NULL default public key method
2118 as unset and return the appropriate default but do *not* set the default.
2119 This means we can return the appropriate method in applications that
2120 switch between FIPS and non-FIPS modes.
2123 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
2124 ENGINE is used then we cannot handle that in the FIPS module so we
2125 keep original code iff non-FIPS operations are allowed.
2128 *) Add -attime option to openssl utilities.
2129 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
2131 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
2134 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
2135 FIPS EC methods unconditionally for now.
2138 *) New build option no-ec2m to disable characteristic 2 code.
2141 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
2142 all cases can be covered as some introduce binary incompatibilities.
2145 *) Redirect RSA operations to FIPS module including keygen,
2146 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
2149 *) Add similar low level API blocking to ciphers.
2152 *) Low level digest APIs are not approved in FIPS mode: any attempt
2153 to use these will cause a fatal error. Applications that *really* want
2154 to use them can use the private_* version instead.
2157 *) Redirect cipher operations to FIPS module for FIPS builds.
2160 *) Redirect digest operations to FIPS module for FIPS builds.
2163 *) Update build system to add "fips" flag which will link in fipscanister.o
2164 for static and shared library builds embedding a signature if needed.
2167 *) Output TLS supported curves in preference order instead of numerical
2168 order. This is currently hardcoded for the highest order curves first.
2169 This should be configurable so applications can judge speed vs strength.
2172 *) Add TLS v1.2 server support for client authentication.
2175 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
2179 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
2180 FIPS modules versions.
2183 *) Add TLS v1.2 client side support for client authentication. Keep cache
2184 of handshake records longer as we don't know the hash algorithm to use
2185 until after the certificate request message is received.
2188 *) Initial TLS v1.2 client support. Add a default signature algorithms
2189 extension including all the algorithms we support. Parse new signature
2190 format in client key exchange. Relax some ECC signing restrictions for
2191 TLS v1.2 as indicated in RFC5246.
2194 *) Add server support for TLS v1.2 signature algorithms extension. Switch
2195 to new signature format when needed using client digest preference.
2196 All server ciphersuites should now work correctly in TLS v1.2. No client
2197 support yet and no support for client certificates.
2200 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
2201 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
2202 ciphersuites. At present only RSA key exchange ciphersuites work with
2203 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
2204 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
2205 and version checking.
2208 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
2209 with this defined it will not be affected by any changes to ssl internal
2210 structures. Add several utility functions to allow openssl application
2211 to work with OPENSSL_NO_SSL_INTERN defined.
2215 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
2217 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
2220 *) Permit abbreviated handshakes when renegotiating using the function
2221 SSL_renegotiate_abbreviated().
2222 [Robin Seggelmann <seggelmann@fh-muenster.de>]
2224 *) Add call to ENGINE_register_all_complete() to
2225 ENGINE_load_builtin_engines(), so some implementations get used
2226 automatically instead of needing explicit application support.
2229 *) Add support for TLS key exporter as described in RFC5705.
2230 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
2232 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
2233 a few changes are required:
2235 Add SSL_OP_NO_TLSv1_1 flag.
2236 Add TLSv1_1 methods.
2237 Update version checking logic to handle version 1.1.
2238 Add explicit IV handling (ported from DTLS code).
2239 Add command line options to s_client/s_server.
2242 Changes between 1.0.0g and 1.0.0h [12 Mar 2012]
2244 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
2245 in CMS and PKCS7 code. When RSA decryption fails use a random key for
2246 content decryption and always return the same error. Note: this attack
2247 needs on average 2^20 messages so it only affects automated senders. The
2248 old behaviour can be reenabled in the CMS code by setting the
2249 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
2250 an MMA defence is not necessary.
2251 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
2252 this issue. (CVE-2012-0884)
2255 *) Fix CVE-2011-4619: make sure we really are receiving a
2256 client hello before rejecting multiple SGC restarts. Thanks to
2257 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
2260 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
2262 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
2263 Thanks to Antonio Martin, Enterprise Secure Access Research and
2264 Development, Cisco Systems, Inc. for discovering this bug and
2265 preparing a fix. (CVE-2012-0050)
2268 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
2270 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
2271 of the Vaudenay padding oracle attack on CBC mode encryption
2272 which enables an efficient plaintext recovery attack against
2273 the OpenSSL implementation of DTLS. Their attack exploits timing
2274 differences arising during decryption processing. A research
2275 paper describing this attack can be found at:
2276 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
2277 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
2278 Security Group at Royal Holloway, University of London
2279 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
2280 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
2281 for preparing the fix. (CVE-2011-4108)
2282 [Robin Seggelmann, Michael Tuexen]
2284 *) Clear bytes used for block padding of SSL 3.0 records.
2286 [Adam Langley (Google)]
2288 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
2289 Kadianakis <desnacked@gmail.com> for discovering this issue and
2290 Adam Langley for preparing the fix. (CVE-2011-4619)
2291 [Adam Langley (Google)]
2293 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
2294 [Andrey Kulikov <amdeich@gmail.com>]
2296 *) Prevent malformed RFC3779 data triggering an assertion failure.
2297 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
2298 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
2299 [Rob Austein <sra@hactrn.net>]
2301 *) Improved PRNG seeding for VOS.
2302 [Paul Green <Paul.Green@stratus.com>]
2304 *) Fix ssl_ciph.c set-up race.
2305 [Adam Langley (Google)]
2307 *) Fix spurious failures in ecdsatest.c.
2308 [Emilia Käsper (Google)]
2310 *) Fix the BIO_f_buffer() implementation (which was mixing different
2311 interpretations of the '..._len' fields).
2312 [Adam Langley (Google)]
2314 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
2315 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
2316 threads won't reuse the same blinding coefficients.
2318 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
2319 lock to call BN_BLINDING_invert_ex, and avoids one use of
2320 BN_BLINDING_update for each BN_BLINDING structure (previously,
2321 the last update always remained unused).
2322 [Emilia Käsper (Google)]
2324 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
2325 [Bob Buckholz (Google)]
2327 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
2329 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
2330 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
2331 [Kaspar Brand <ossl@velox.ch>]
2333 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
2334 for multi-threaded use of ECDH. (CVE-2011-3210)
2335 [Adam Langley (Google)]
2337 *) Fix x509_name_ex_d2i memory leak on bad inputs.
2340 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
2341 signature public key algorithm by using OID xref utilities instead.
2342 Before this you could only use some ECC ciphersuites with SHA1 only.
2345 *) Add protection against ECDSA timing attacks as mentioned in the paper
2346 by Billy Bob Brumley and Nicola Tuveri, see:
2348 http://eprint.iacr.org/2011/232.pdf
2350 [Billy Bob Brumley and Nicola Tuveri]
2352 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
2354 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
2355 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
2357 *) Fix bug in string printing code: if *any* escaping is enabled we must
2358 escape the escape character (backslash) or the resulting string is
2362 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
2364 *) Disable code workaround for ancient and obsolete Netscape browsers
2365 and servers: an attacker can use it in a ciphersuite downgrade attack.
2366 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
2369 *) Fixed J-PAKE implementation error, originally discovered by
2370 Sebastien Martini, further info and confirmation from Stefan
2371 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
2374 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
2376 *) Fix extension code to avoid race conditions which can result in a buffer
2377 overrun vulnerability: resumed sessions must not be modified as they can
2378 be shared by multiple threads. CVE-2010-3864
2381 *) Fix WIN32 build system to correctly link an ENGINE directory into
2385 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
2387 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
2389 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
2391 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
2393 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
2394 context. The operation can be customised via the ctrl mechanism in
2395 case ENGINEs want to include additional functionality.
2398 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
2401 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
2402 output hashes compatible with older versions of OpenSSL.
2403 [Willy Weisz <weisz@vcpc.univie.ac.at>]
2405 *) Fix compression algorithm handling: if resuming a session use the
2406 compression algorithm of the resumed session instead of determining
2407 it from client hello again. Don't allow server to change algorithm.
2410 *) Add load_crls() function to apps tidying load_certs() too. Add option
2411 to verify utility to allow additional CRLs to be included.
2414 *) Update OCSP request code to permit adding custom headers to the request:
2415 some responders need this.
2418 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
2420 [Julia Lawall <julia@diku.dk>]
2422 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
2423 needlessly dereferenced structures, used obsolete functions and
2424 didn't handle all updated verify codes correctly.
2427 *) Disable MD2 in the default configuration.
2430 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
2431 indicate the initial BIO being pushed or popped. This makes it possible
2432 to determine whether the BIO is the one explicitly called or as a result
2433 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
2434 it handles reference counts correctly and doesn't zero out the I/O bio
2435 when it is not being explicitly popped. WARNING: applications which
2436 included workarounds for the old buggy behaviour will need to be modified
2437 or they could free up already freed BIOs.
2440 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
2441 renaming to all platforms (within the 0.9.8 branch, this was
2442 done conditionally on Netware platforms to avoid a name clash).
2443 [Guenter <lists@gknw.net>]
2445 *) Add ECDHE and PSK support to DTLS.
2446 [Michael Tuexen <tuexen@fh-muenster.de>]
2448 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
2452 *) Add "missing" function EVP_MD_flags() (without this the only way to
2453 retrieve a digest flags is by accessing the structure directly. Update
2454 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
2455 or cipher is registered as in the "from" argument. Print out all
2456 registered digests in the dgst usage message instead of manually
2457 attempting to work them out.
2460 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
2461 this allows the use of compression and extensions. Change default cipher
2462 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
2463 by default unless an application cipher string requests it.
2466 *) Alter match criteria in PKCS12_parse(). It used to try to use local
2467 key ids to find matching certificates and keys but some PKCS#12 files
2468 don't follow the (somewhat unwritten) rules and this strategy fails.
2469 Now just gather all certificates together and the first private key
2470 then look for the first certificate that matches the key.
2473 *) Support use of registered digest and cipher names for dgst and cipher
2474 commands instead of having to add each one as a special case. So now
2481 openssl dgst -sha256 foo
2483 and this works for ENGINE based algorithms too.
2487 *) Update Gost ENGINE to support parameter files.
2488 [Victor B. Wagner <vitus@cryptocom.ru>]
2490 *) Support GeneralizedTime in ca utility.
2491 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
2493 *) Enhance the hash format used for certificate directory links. The new
2494 form uses the canonical encoding (meaning equivalent names will work
2495 even if they aren't identical) and uses SHA1 instead of MD5. This form
2496 is incompatible with the older format and as a result c_rehash should
2497 be used to rebuild symbolic links.
2500 *) Make PKCS#8 the default write format for private keys, replacing the
2501 traditional format. This form is standardised, more secure and doesn't
2502 include an implicit MD5 dependency.
2505 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
2506 committed to OpenSSL should pass this lot as a minimum.
2509 *) Add session ticket override functionality for use by EAP-FAST.
2510 [Jouni Malinen <j@w1.fi>]
2512 *) Modify HMAC functions to return a value. Since these can be implemented
2513 in an ENGINE errors can occur.
2516 *) Type-checked OBJ_bsearch_ex.
2519 *) Type-checked OBJ_bsearch. Also some constification necessitated
2520 by type-checking. Still to come: TXT_DB, bsearch(?),
2521 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
2525 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
2526 seconds to a tm structure directly, instead of going through OS
2527 specific date routines. This avoids any issues with OS routines such
2528 as the year 2038 bug. New *_adj() functions for ASN1 time structures
2529 and X509_time_adj_ex() to cover the extended range. The existing
2530 X509_time_adj() is still usable and will no longer have any date issues.
2533 *) Delta CRL support. New use deltas option which will attempt to locate
2534 and search any appropriate delta CRLs available.
2536 This work was sponsored by Google.
2539 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
2540 code and add additional score elements. Validate alternate CRL paths
2541 as part of the CRL checking and indicate a new error "CRL path validation
2542 error" in this case. Applications wanting additional details can use
2543 the verify callback and check the new "parent" field. If this is not
2544 NULL CRL path validation is taking place. Existing applications wont
2545 see this because it requires extended CRL support which is off by
2548 This work was sponsored by Google.
2551 *) Support for freshest CRL extension.
2553 This work was sponsored by Google.
2556 *) Initial indirect CRL support. Currently only supported in the CRLs
2557 passed directly and not via lookup. Process certificate issuer
2558 CRL entry extension and lookup CRL entries by bother issuer name
2559 and serial number. Check and process CRL issuer entry in IDP extension.
2561 This work was sponsored by Google.
2564 *) Add support for distinct certificate and CRL paths. The CRL issuer
2565 certificate is validated separately in this case. Only enabled if
2566 an extended CRL support flag is set: this flag will enable additional
2567 CRL functionality in future.
2569 This work was sponsored by Google.
2572 *) Add support for policy mappings extension.
2574 This work was sponsored by Google.
2577 *) Fixes to pathlength constraint, self issued certificate handling,
2578 policy processing to align with RFC3280 and PKITS tests.
2580 This work was sponsored by Google.
2583 *) Support for name constraints certificate extension. DN, email, DNS
2584 and URI types are currently supported.
2586 This work was sponsored by Google.
2589 *) To cater for systems that provide a pointer-based thread ID rather
2590 than numeric, deprecate the current numeric thread ID mechanism and
2591 replace it with a structure and associated callback type. This
2592 mechanism allows a numeric "hash" to be extracted from a thread ID in
2593 either case, and on platforms where pointers are larger than 'long',
2594 mixing is done to help ensure the numeric 'hash' is usable even if it
2595 can't be guaranteed unique. The default mechanism is to use "&errno"
2596 as a pointer-based thread ID to distinguish between threads.
2598 Applications that want to provide their own thread IDs should now use
2599 CRYPTO_THREADID_set_callback() to register a callback that will call
2600 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
2602 Note that ERR_remove_state() is now deprecated, because it is tied
2603 to the assumption that thread IDs are numeric. ERR_remove_state(0)
2604 to free the current thread's error state should be replaced by
2605 ERR_remove_thread_state(NULL).
2607 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
2608 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
2609 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
2610 application was previously providing a numeric thread callback that
2611 was inappropriate for distinguishing threads, then uniqueness might
2612 have been obtained with &errno that happened immediately in the
2613 intermediate development versions of OpenSSL; this is no longer the
2614 case, the numeric thread callback will now override the automatic use
2616 [Geoff Thorpe, with help from Bodo Moeller]
2618 *) Initial support for different CRL issuing certificates. This covers a
2619 simple case where the self issued certificates in the chain exist and
2620 the real CRL issuer is higher in the existing chain.
2622 This work was sponsored by Google.
2625 *) Removed effectively defunct crypto/store from the build.
2628 *) Revamp of STACK to provide stronger type-checking. Still to come:
2629 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
2630 ASN1_STRING, CONF_VALUE.
2633 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
2634 RAM on SSL connections. This option can save about 34k per idle SSL.
2637 *) Revamp of LHASH to provide stronger type-checking. Still to come:
2638 STACK, TXT_DB, bsearch, qsort.
2641 *) Initial support for Cryptographic Message Syntax (aka CMS) based
2642 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
2643 support for data, signedData, compressedData, digestedData and
2644 encryptedData, envelopedData types included. Scripts to check against
2645 RFC4134 examples draft and interop and consistency checks of many
2646 content types and variants.
2649 *) Add options to enc utility to support use of zlib compression BIO.
2652 *) Extend mk1mf to support importing of options and assembly language
2653 files from Configure script, currently only included in VC-WIN32.
2654 The assembly language rules can now optionally generate the source
2655 files from the associated perl scripts.
2658 *) Implement remaining functionality needed to support GOST ciphersuites.
2659 Interop testing has been performed using CryptoPro implementations.
2660 [Victor B. Wagner <vitus@cryptocom.ru>]
2662 *) s390x assembler pack.
2665 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
2669 *) Implement Opaque PRF Input TLS extension as specified in
2670 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
2671 official specification yet and no extension type assignment by
2672 IANA exists, this extension (for now) will have to be explicitly
2673 enabled when building OpenSSL by providing the extension number
2674 to use. For example, specify an option
2676 -DTLSEXT_TYPE_opaque_prf_input=0x9527
2678 to the "config" or "Configure" script to enable the extension,
2679 assuming extension number 0x9527 (which is a completely arbitrary
2680 and unofficial assignment based on the MD5 hash of the Internet
2681 Draft). Note that by doing so, you potentially lose
2682 interoperability with other TLS implementations since these might
2683 be using the same extension number for other purposes.
2685 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
2686 opaque PRF input value to use in the handshake. This will create
2687 an interal copy of the length-'len' string at 'src', and will
2688 return non-zero for success.
2690 To get more control and flexibility, provide a callback function
2693 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
2694 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
2698 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
2701 Callback function 'cb' will be called in handshakes, and is
2702 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
2703 Argument 'arg' is for application purposes (the value as given to
2704 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
2705 be provided to the callback function). The callback function
2706 has to return non-zero to report success: usually 1 to use opaque
2707 PRF input just if possible, or 2 to enforce use of the opaque PRF
2708 input. In the latter case, the library will abort the handshake
2709 if opaque PRF input is not successfully negotiated.
2711 Arguments 'peerinput' and 'len' given to the callback function
2712 will always be NULL and 0 in the case of a client. A server will
2713 see the client's opaque PRF input through these variables if
2714 available (NULL and 0 otherwise). Note that if the server
2715 provides an opaque PRF input, the length must be the same as the
2716 length of the client's opaque PRF input.
2718 Note that the callback function will only be called when creating
2719 a new session (session resumption can resume whatever was
2720 previously negotiated), and will not be called in SSL 2.0
2721 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
2722 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
2723 for applications that need to enforce opaque PRF input.
2727 *) Update ssl code to support digests other than SHA1+MD5 for handshake
2730 [Victor B. Wagner <vitus@cryptocom.ru>]
2732 *) Add RFC4507 support to OpenSSL. This includes the corrections in
2733 RFC4507bis. The encrypted ticket format is an encrypted encoded
2734 SSL_SESSION structure, that way new session features are automatically
2737 If a client application caches session in an SSL_SESSION structure
2738 support is transparent because tickets are now stored in the encoded
2741 The SSL_CTX structure automatically generates keys for ticket
2742 protection in servers so again support should be possible
2743 with no application modification.
2745 If a client or server wishes to disable RFC4507 support then the option
2746 SSL_OP_NO_TICKET can be set.
2748 Add a TLS extension debugging callback to allow the contents of any client
2749 or server extensions to be examined.
2751 This work was sponsored by Google.
2754 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
2755 OpenSSL should now compile cleanly on gcc 4.2
2756 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
2758 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
2759 support including streaming MAC support: this is required for GOST
2760 ciphersuite support.
2761 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
2763 *) Add option -stream to use PKCS#7 streaming in smime utility. New
2764 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
2765 to output in BER and PEM format.
2768 *) Experimental support for use of HMAC via EVP_PKEY interface. This
2769 allows HMAC to be handled via the EVP_DigestSign*() interface. The
2770 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
2771 ENGINE support for HMAC keys which are unextractable. New -mac and
2772 -macopt options to dgst utility.
2775 *) New option -sigopt to dgst utility. Update dgst to use
2776 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
2777 alternative signing parameters such as X9.31 or PSS in the dgst
2781 *) Change ssl_cipher_apply_rule(), the internal function that does
2782 the work each time a ciphersuite string requests enabling
2783 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
2784 removing ("!foo+bar") a class of ciphersuites: Now it maintains
2785 the order of disabled ciphersuites such that those ciphersuites
2786 that most recently went from enabled to disabled not only stay
2787 in order with respect to each other, but also have higher priority
2788 than other disabled ciphersuites the next time ciphersuites are
2791 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
2792 the same ciphersuites as with "HIGH" alone, but in a specific
2793 order where the PSK ciphersuites come first (since they are the
2794 most recently disabled ciphersuites when "HIGH" is parsed).
2796 Also, change ssl_create_cipher_list() (using this new
2797 funcionality) such that between otherwise identical
2798 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
2802 *) Change ssl_create_cipher_list() so that it automatically
2803 arranges the ciphersuites in reasonable order before starting
2804 to process the rule string. Thus, the definition for "DEFAULT"
2805 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
2806 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
2807 This makes it much easier to arrive at a reasonable default order
2808 in applications for which anonymous ciphers are OK (meaning
2809 that you can't actually use DEFAULT).
2810 [Bodo Moeller; suggested by Victor Duchovni]
2812 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
2813 processing) into multiple integers instead of setting
2814 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
2815 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
2816 (These masks as well as the individual bit definitions are hidden
2817 away into the non-exported interface ssl/ssl_locl.h, so this
2818 change to the definition of the SSL_CIPHER structure shouldn't
2819 affect applications.) This give us more bits for each of these
2820 categories, so there is no longer a need to coagulate AES128 and
2821 AES256 into a single algorithm bit, and to coagulate Camellia128
2822 and Camellia256 into a single algorithm bit, which has led to all
2825 Thus, among other things, the kludge introduced in 0.9.7m and
2826 0.9.8e for masking out AES256 independently of AES128 or masking
2827 out Camellia256 independently of AES256 is not needed here in 0.9.9.
2829 With the change, we also introduce new ciphersuite aliases that
2830 so far were missing: "AES128", "AES256", "CAMELLIA128", and
2834 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
2835 Use the leftmost N bytes of the signature input if the input is
2836 larger than the prime q (with N being the size in bytes of q).
2839 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
2840 it yet and it is largely untested.
2843 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
2846 *) Initial incomplete changes to avoid need for function casts in OpenSSL
2847 some compilers (gcc 4.2 and later) reject their use. Safestack is
2848 reimplemented. Update ASN1 to avoid use of legacy functions.
2851 *) Win32/64 targets are linked with Winsock2.
2854 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
2855 to external functions. This can be used to increase CRL handling
2856 efficiency especially when CRLs are very large by (for example) storing
2857 the CRL revoked certificates in a database.
2860 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
2861 new CRLs added to a directory can be used. New command line option
2862 -verify_return_error to s_client and s_server. This causes real errors
2863 to be returned by the verify callback instead of carrying on no matter
2864 what. This reflects the way a "real world" verify callback would behave.
2867 *) GOST engine, supporting several GOST algorithms and public key formats.
2868 Kindly donated by Cryptocom.
2871 *) Partial support for Issuing Distribution Point CRL extension. CRLs
2872 partitioned by DP are handled but no indirect CRL or reason partitioning
2873 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
2874 selected via a scoring technique which handles IDP and AKID in CRLs.
2877 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
2878 will ultimately be used for all verify operations: this will remove the
2879 X509_STORE dependency on certificate verification and allow alternative
2880 lookup methods. X509_STORE based implementations of these two callbacks.
2883 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
2884 Modify get_crl() to find a valid (unexpired) CRL if possible.
2887 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
2888 this would be called X509_CRL_cmp() but that name is already used by
2889 a function that just compares CRL issuer names. Cache several CRL
2890 extensions in X509_CRL structure and cache CRLDP in X509.
2893 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
2894 this maps equivalent X509_NAME structures into a consistent structure.
2895 Name comparison can then be performed rapidly using memcmp().
2898 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
2902 *) Allow digests to supply their own micalg string for S/MIME type using
2903 the ctrl EVP_MD_CTRL_MICALG.
2906 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
2907 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
2908 ctrl. It can then customise the structure before and/or after signing
2912 *) New function OBJ_add_sigid() to allow application defined signature OIDs
2913 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
2914 to free up any added signature OIDs.
2917 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
2918 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
2919 digest and cipher tables. New options added to openssl utility:
2920 list-message-digest-algorithms and list-cipher-algorithms.
2923 *) Change the array representation of binary polynomials: the list
2924 of degrees of non-zero coefficients is now terminated with -1.
2925 Previously it was terminated with 0, which was also part of the
2926 value; thus, the array representation was not applicable to
2927 polynomials where t^0 has coefficient zero. This change makes
2928 the array representation useful in a more general context.
2931 *) Various modifications and fixes to SSL/TLS cipher string
2932 handling. For ECC, the code now distinguishes between fixed ECDH
2933 with RSA certificates on the one hand and with ECDSA certificates
2934 on the other hand, since these are separate ciphersuites. The
2935 unused code for Fortezza ciphersuites has been removed.
2937 For consistency with EDH, ephemeral ECDH is now called "EECDH"
2938 (not "ECDHE"). For consistency with the code for DH
2939 certificates, use of ECDH certificates is now considered ECDH
2940 authentication, not RSA or ECDSA authentication (the latter is
2941 merely the CA's signing algorithm and not actively used in the
2944 The temporary ciphersuite alias "ECCdraft" is no longer
2945 available, and ECC ciphersuites are no longer excluded from "ALL"
2946 and "DEFAULT". The following aliases now exist for RFC 4492
2947 ciphersuites, most of these by analogy with the DH case:
2949 kECDHr - ECDH cert, signed with RSA
2950 kECDHe - ECDH cert, signed with ECDSA
2951 kECDH - ECDH cert (signed with either RSA or ECDSA)
2952 kEECDH - ephemeral ECDH
2953 ECDH - ECDH cert or ephemeral ECDH
2959 AECDH - anonymous ECDH
2960 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
2964 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
2965 Use correct micalg parameters depending on digest(s) in signed message.
2968 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
2969 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
2972 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
2973 an engine to register a method. Add ENGINE lookups for methods and
2974 functional reference processing.
2977 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
2978 EVP_{Sign,Verify}* which allow an application to customise the signature
2982 *) New -resign option to smime utility. This adds one or more signers
2983 to an existing PKCS#7 signedData structure. Also -md option to use an
2984 alternative message digest algorithm for signing.
2987 *) Tidy up PKCS#7 routines and add new functions to make it easier to
2988 create PKCS7 structures containing multiple signers. Update smime
2989 application to support multiple signers.
2992 *) New -macalg option to pkcs12 utility to allow setting of an alternative
2996 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
2997 Reorganize PBE internals to lookup from a static table using NIDs,
2998 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
2999 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
3000 PRF which will be automatically used with PBES2.
3003 *) Replace the algorithm specific calls to generate keys in "req" with the
3007 *) Update PKCS#7 enveloped data routines to use new API. This is now
3008 supported by any public key method supporting the encrypt operation. A
3009 ctrl is added to allow the public key algorithm to examine or modify
3010 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
3014 *) Add a ctrl to asn1 method to allow a public key algorithm to express
3015 a default digest type to use. In most cases this will be SHA1 but some
3016 algorithms (such as GOST) need to specify an alternative digest. The
3017 return value indicates how strong the preference is 1 means optional and
3018 2 is mandatory (that is it is the only supported type). Modify
3019 ASN1_item_sign() to accept a NULL digest argument to indicate it should
3020 use the default md. Update openssl utilities to use the default digest
3021 type for signing if it is not explicitly indicated.
3024 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
3025 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
3026 signing method from the key type. This effectively removes the link
3027 between digests and public key types.
3030 *) Add an OID cross reference table and utility functions. Its purpose is to
3031 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
3032 rsaEncryption. This will allow some of the algorithm specific hackery
3033 needed to use the correct OID to be removed.
3036 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
3037 structures for PKCS7_sign(). They are now set up by the relevant public
3041 *) Add provisional EC pkey method with support for ECDSA and ECDH.
3044 *) Add support for key derivation (agreement) in the API, DH method and
3048 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
3049 public and private key formats. As a side effect these add additional
3050 command line functionality not previously available: DSA signatures can be
3051 generated and verified using pkeyutl and DH key support and generation in
3056 [Oliver Tappe <zooey@hirschkaefer.de>]
3058 *) New make target "install_html_docs" installs HTML renditions of the
3060 [Oliver Tappe <zooey@hirschkaefer.de>]
3062 *) New utility "genpkey" this is analogous to "genrsa" etc except it can
3063 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
3064 support key and parameter generation and add initial key generation
3065 functionality for RSA.
3068 *) Add functions for main EVP_PKEY_method operations. The undocumented
3069 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
3070 EVP_PKEY_{encrypt,decrypt}_old.
3073 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
3074 key API, doesn't do much yet.
3077 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
3078 public key algorithms. New option to openssl utility:
3079 "list-public-key-algorithms" to print out info.
3082 *) Implement the Supported Elliptic Curves Extension for
3083 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
3086 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
3087 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
3090 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
3091 utilities such as rsa, dsa, dsaparam etc except they process any key
3095 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
3096 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
3097 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
3101 *) Initial support for pluggable public key ASN1.
3102 De-spaghettify the public key ASN1 handling. Move public and private
3103 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
3104 algorithm specific handling to a single module within the relevant
3105 algorithm directory. Add functions to allow (near) opaque processing
3106 of public and private key structures.
3109 *) Implement the Supported Point Formats Extension for
3110 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
3113 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
3114 for the psk identity [hint] and the psk callback functions to the
3115 SSL_SESSION, SSL and SSL_CTX structure.
3118 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
3122 SSL_CTX_use_psk_identity_hint
3123 SSL_get_psk_identity_hint
3124 SSL_get_psk_identity
3125 SSL_use_psk_identity_hint
3127 [Mika Kousa and Pasi Eronen of Nokia Corporation]
3129 *) Add RFC 3161 compliant time stamp request creation, response generation
3130 and response verification functionality.
3131 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
3133 *) Add initial support for TLS extensions, specifically for the server_name
3134 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
3135 have new members for a host name. The SSL data structure has an
3136 additional member SSL_CTX *initial_ctx so that new sessions can be
3137 stored in that context to allow for session resumption, even after the
3138 SSL has been switched to a new SSL_CTX in reaction to a client's
3139 server_name extension.
3141 New functions (subject to change):
3143 SSL_get_servername()
3144 SSL_get_servername_type()
3147 New CTRL codes and macros (subject to change):
3149 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
3150 - SSL_CTX_set_tlsext_servername_callback()
3151 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
3152 - SSL_CTX_set_tlsext_servername_arg()
3153 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
3155 openssl s_client has a new '-servername ...' option.
3157 openssl s_server has new options '-servername_host ...', '-cert2 ...',
3158 '-key2 ...', '-servername_fatal' (subject to change). This allows
3159 testing the HostName extension for a specific single host name ('-cert'
3160 and '-key' remain fallbacks for handshakes without HostName
3161 negotiation). If the unrecognized_name alert has to be sent, this by
3162 default is a warning; it becomes fatal with the '-servername_fatal'
3165 [Peter Sylvester, Remy Allais, Christophe Renou]
3167 *) Whirlpool hash implementation is added.
3170 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
3171 bn(64,32). Because of instruction set limitations it doesn't have
3172 any negative impact on performance. This was done mostly in order
3173 to make it possible to share assembler modules, such as bn_mul_mont
3174 implementations, between 32- and 64-bit builds without hassle.
3177 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
3178 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
3182 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
3183 dedicated Montgomery multiplication procedure, is introduced.
3184 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
3185 "64-bit" performance on certain 32-bit targets.
3188 *) New option SSL_OP_NO_COMP to disable use of compression selectively
3189 in SSL structures. New SSL ctrl to set maximum send fragment size.
3190 Save memory by seeting the I/O buffer sizes dynamically instead of
3191 using the maximum available value.
3194 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
3195 in addition to the text details.
3198 *) Very, very preliminary EXPERIMENTAL support for printing of general
3199 ASN1 structures. This currently produces rather ugly output and doesn't
3200 handle several customised structures at all.
3203 *) Integrated support for PVK file format and some related formats such
3204 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
3205 these in the 'rsa' and 'dsa' utilities.
3208 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
3211 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
3212 place for the (very old) "NETSCAPE" format certificates which are now
3213 handled using new ASN1 code equivalents.
3216 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
3217 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
3218 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
3221 *) Modify CRL distribution points extension code to print out previously
3222 unsupported fields. Enhance extension setting code to allow setting of
3226 *) Add print and set support for Issuing Distribution Point CRL extension.
3229 *) Change 'Configure' script to enable Camellia by default.
3232 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
3234 *) When rejecting SSL/TLS records due to an incorrect version number, never
3235 update s->server with a new major version number. As of
3236 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
3237 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
3238 the previous behavior could result in a read attempt at NULL when
3239 receiving specific incorrect SSL/TLS records once record payload
3240 protection is active. (CVE-2010-0740)
3241 [Bodo Moeller, Adam Langley <agl@chromium.org>]
3243 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
3244 could be crashed if the relevant tables were not present (e.g. chrooted).
3245 [Tomas Hoger <thoger@redhat.com>]
3247 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
3249 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
3250 [Martin Olsson, Neel Mehta]
3252 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
3253 accommodate for stack sorting, always a write lock!).
3256 *) On some versions of WIN32 Heap32Next is very slow. This can cause
3257 excessive delays in the RAND_poll(): over a minute. As a workaround
3258 include a time check in the inner Heap32Next loop too.
3261 *) The code that handled flushing of data in SSL/TLS originally used the
3262 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
3263 the problem outlined in PR#1949. The fix suggested there however can
3264 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
3265 of Apache). So instead simplify the code to flush unconditionally.
3266 This should be fine since flushing with no data to flush is a no op.
3269 *) Handle TLS versions 2.0 and later properly and correctly use the
3270 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
3271 off ancient servers have a habit of sticking around for a while...
3274 *) Modify compression code so it frees up structures without using the
3275 ex_data callbacks. This works around a problem where some applications
3276 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
3277 restarting) then use compression (e.g. SSL with compression) later.
3278 This results in significant per-connection memory leaks and
3279 has caused some security issues including CVE-2008-1678 and
3283 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
3284 change when encrypting or decrypting.
3287 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
3288 connect and renegotiate with servers which do not support RI.
3289 Until RI is more widely deployed this option is enabled by default.
3292 *) Add "missing" ssl ctrls to clear options and mode.
3295 *) If client attempts to renegotiate and doesn't support RI respond with
3296 a no_renegotiation alert as required by RFC5746. Some renegotiating
3297 TLS clients will continue a connection gracefully when they receive
3298 the alert. Unfortunately OpenSSL mishandled this alert and would hang
3299 waiting for a server hello which it will never receive. Now we treat a
3300 received no_renegotiation alert as a fatal error. This is because
3301 applications requesting a renegotiation might well expect it to succeed
3302 and would have no code in place to handle the server denying it so the
3303 only safe thing to do is to terminate the connection.
3306 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
3307 peer supports secure renegotiation and 0 otherwise. Print out peer
3308 renegotiation support in s_client/s_server.
3311 *) Replace the highly broken and deprecated SPKAC certification method with
3312 the updated NID creation version. This should correctly handle UTF8.
3315 *) Implement RFC5746. Re-enable renegotiation but require the extension
3316 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
3317 turns out to be a bad idea. It has been replaced by
3318 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
3319 SSL_CTX_set_options(). This is really not recommended unless you
3320 know what you are doing.
3321 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
3323 *) Fixes to stateless session resumption handling. Use initial_ctx when
3324 issuing and attempting to decrypt tickets in case it has changed during
3325 servername handling. Use a non-zero length session ID when attempting
3326 stateless session resumption: this makes it possible to determine if
3327 a resumption has occurred immediately after receiving server hello
3328 (several places in OpenSSL subtly assume this) instead of later in
3332 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
3333 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
3334 fixes for a few places where the return code is not checked
3336 [Julia Lawall <julia@diku.dk>]
3338 *) Add --strict-warnings option to Configure script to include devteam
3339 warnings in other configurations.
3342 *) Add support for --libdir option and LIBDIR variable in makefiles. This
3343 makes it possible to install openssl libraries in locations which
3344 have names other than "lib", for example "/usr/lib64" which some
3346 [Steve Henson, based on patch from Jeremy Utley]
3348 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
3349 X690 8.9.12 and can produce some misleading textual output of OIDs.
3350 [Steve Henson, reported by Dan Kaminsky]
3352 *) Delete MD2 from algorithm tables. This follows the recommendation in
3353 several standards that it is not used in new applications due to
3354 several cryptographic weaknesses. For binary compatibility reasons
3355 the MD2 API is still compiled in by default.
3358 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
3362 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
3363 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
3365 [Guenter <lists@gknw.net>]
3367 *) Fix the server certificate chain building code to use X509_verify_cert(),
3368 it used to have an ad-hoc builder which was unable to cope with anything
3369 other than a simple chain.
3370 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
3372 *) Don't check self signed certificate signatures in X509_verify_cert()
3373 by default (a flag can override this): it just wastes time without
3374 adding any security. As a useful side effect self signed root CAs
3375 with non-FIPS digests are now usable in FIPS mode.
3378 *) In dtls1_process_out_of_seq_message() the check if the current message
3379 is already buffered was missing. For every new message was memory
3380 allocated, allowing an attacker to perform an denial of service attack
3381 with sending out of seq handshake messages until there is no memory
3382 left. Additionally every future messege was buffered, even if the
3383 sequence number made no sense and would be part of another handshake.
3384 So only messages with sequence numbers less than 10 in advance will be
3385 buffered. (CVE-2009-1378)
3386 [Robin Seggelmann, discovered by Daniel Mentz]
3388 *) Records are buffered if they arrive with a future epoch to be
3389 processed after finishing the corresponding handshake. There is
3390 currently no limitation to this buffer allowing an attacker to perform
3391 a DOS attack with sending records with future epochs until there is no
3392 memory left. This patch adds the pqueue_size() function to determine
3393 the size of a buffer and limits the record buffer to 100 entries.
3395 [Robin Seggelmann, discovered by Daniel Mentz]
3397 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
3398 parent structure is freed. (CVE-2009-1379)
3401 *) Handle non-blocking I/O properly in SSL_shutdown() call.
3402 [Darryl Miles <darryl-mailinglists@netbauds.net>]
3405 [Ilya O. <vrghost@gmail.com>]
3407 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
3409 *) Disable renegotiation completely - this fixes a severe security
3410 problem (CVE-2009-3555) at the cost of breaking all
3411 renegotiation. Renegotiation can be re-enabled by setting
3412 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
3413 run-time. This is really not recommended unless you know what
3417 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
3419 *) Don't set val to NULL when freeing up structures, it is freed up by
3420 underlying code. If sizeof(void *) > sizeof(long) this can result in
3421 zeroing past the valid field. (CVE-2009-0789)
3422 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
3424 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
3425 checked correctly. This would allow some invalid signed attributes to
3426 appear to verify correctly. (CVE-2009-0591)
3427 [Ivan Nestlerode <inestlerode@us.ibm.com>]
3429 *) Reject UniversalString and BMPString types with invalid lengths. This
3430 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
3431 a legal length. (CVE-2009-0590)
3434 *) Set S/MIME signing as the default purpose rather than setting it
3435 unconditionally. This allows applications to override it at the store
3439 *) Permit restricted recursion of ASN1 strings. This is needed in practice
3440 to handle some structures.
3443 *) Improve efficiency of mem_gets: don't search whole buffer each time
3445 [Jeremy Shapiro <jnshapir@us.ibm.com>]
3447 *) New -hex option for openssl rand.
3450 *) Print out UTF8String and NumericString when parsing ASN1.
3453 *) Support NumericString type for name components.
3456 *) Allow CC in the environment to override the automatically chosen
3457 compiler. Note that nothing is done to ensure flags work with the
3461 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
3463 *) Properly check EVP_VerifyFinal() and similar return values
3465 [Ben Laurie, Bodo Moeller, Google Security Team]
3467 *) Enable TLS extensions by default.
3470 *) Allow the CHIL engine to be loaded, whether the application is
3471 multithreaded or not. (This does not release the developer from the
3472 obligation to set up the dynamic locking callbacks.)
3473 [Sander Temme <sander@temme.net>]
3475 *) Use correct exit code if there is an error in dgst command.
3476 [Steve Henson; problem pointed out by Roland Dirlewanger]
3478 *) Tweak Configure so that you need to say "experimental-jpake" to enable
3479 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
3482 *) Add experimental JPAKE support, including demo authentication in
3483 s_client and s_server.
3486 *) Set the comparison function in v3_addr_canonize().
3487 [Rob Austein <sra@hactrn.net>]
3489 *) Add support for XMPP STARTTLS in s_client.
3490 [Philip Paeps <philip@freebsd.org>]
3492 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
3493 to ensure that even with this option, only ciphersuites in the
3494 server's preference list will be accepted. (Note that the option
3495 applies only when resuming a session, so the earlier behavior was
3496 just about the algorithm choice for symmetric cryptography.)
3499 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
3501 *) Fix NULL pointer dereference if a DTLS server received
3502 ChangeCipherSpec as first record (CVE-2009-1386).
3505 *) Fix a state transition in s3_srvr.c and d1_srvr.c
3506 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
3509 *) The fix in 0.9.8c that supposedly got rid of unsafe
3510 double-checked locking was incomplete for RSA blinding,
3511 addressing just one layer of what turns out to have been
3512 doubly unsafe triple-checked locking.
3514 So now fix this for real by retiring the MONT_HELPER macro
3515 in crypto/rsa/rsa_eay.c.
3517 [Bodo Moeller; problem pointed out by Marius Schilder]
3519 *) Various precautionary measures:
3521 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
3523 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
3524 (NB: This would require knowledge of the secret session ticket key
3525 to exploit, in which case you'd be SOL either way.)
3527 - Change bn_nist.c so that it will properly handle input BIGNUMs
3528 outside the expected range.
3530 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
3533 [Neel Mehta, Bodo Moeller]
3535 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
3536 the load fails. Useful for distros.
3537 [Ben Laurie and the FreeBSD team]
3539 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
3542 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
3545 *) Expand ENGINE to support engine supplied SSL client certificate functions.
3547 This work was sponsored by Logica.
3550 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
3551 keystores. Support for SSL/TLS client authentication too.
3552 Not compiled unless enable-capieng specified to Configure.
3554 This work was sponsored by Logica.
3557 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
3558 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
3559 attribute creation routines such as certifcate requests and PKCS#12
3563 Changes between 0.9.8g and 0.9.8h [28 May 2008]
3565 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
3566 handshake which could lead to a cilent crash as found using the
3567 Codenomicon TLS test suite (CVE-2008-1672)
3568 [Steve Henson, Mark Cox]
3570 *) Fix double free in TLS server name extensions which could lead to
3571 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
3574 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
3576 Clear the error queue to ensure that error entries left from
3577 older function calls do not interfere with the correct operation.
3578 [Lutz Jaenicke, Erik de Castro Lopo]
3580 *) Remove root CA certificates of commercial CAs:
3582 The OpenSSL project does not recommend any specific CA and does not
3583 have any policy with respect to including or excluding any CA.
3584 Therefore it does not make any sense to ship an arbitrary selection
3585 of root CA certificates with the OpenSSL software.
3588 *) RSA OAEP patches to fix two separate invalid memory reads.
3589 The first one involves inputs when 'lzero' is greater than
3590 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
3591 before the beginning of from). The second one involves inputs where
3592 the 'db' section contains nothing but zeroes (there is a one-byte
3593 invalid read after the end of 'db').
3594 [Ivan Nestlerode <inestlerode@us.ibm.com>]
3596 *) Partial backport from 0.9.9-dev:
3598 Introduce bn_mul_mont (dedicated Montgomery multiplication
3599 procedure) as a candidate for BIGNUM assembler implementation.
3600 While 0.9.9-dev uses assembler for various architectures, only
3601 x86_64 is available by default here in the 0.9.8 branch, and
3602 32-bit x86 is available through a compile-time setting.
3604 To try the 32-bit x86 assembler implementation, use Configure
3605 option "enable-montasm" (which exists only for this backport).
3607 As "enable-montasm" for 32-bit x86 disclaims code stability
3608 anyway, in this constellation we activate additional code
3609 backported from 0.9.9-dev for further performance improvements,
3610 namely BN_from_montgomery_word. (To enable this otherwise,
3611 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
3613 [Andy Polyakov (backport partially by Bodo Moeller)]
3615 *) Add TLS session ticket callback. This allows an application to set
3616 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
3617 values. This is useful for key rollover for example where several key
3618 sets may exist with different names.
3621 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
3622 This was broken until now in 0.9.8 releases, such that the only way
3623 a registered ENGINE could be used (assuming it initialises
3624 successfully on the host) was to explicitly set it as the default
3625 for the relevant algorithms. This is in contradiction with 0.9.7
3626 behaviour and the documentation. With this fix, when an ENGINE is
3627 registered into a given algorithm's table of implementations, the
3628 'uptodate' flag is reset so that auto-discovery will be used next
3629 time a new context for that algorithm attempts to select an
3631 [Ian Lister (tweaked by Geoff Thorpe)]
3633 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
3634 implemention in the following ways:
3636 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
3639 Lack of BER streaming support means one pass streaming processing is
3640 only supported if data is detached: setting the streaming flag is
3641 ignored for embedded content.
3643 CMS support is disabled by default and must be explicitly enabled
3644 with the enable-cms configuration option.
3647 *) Update the GMP engine glue to do direct copies between BIGNUM and
3648 mpz_t when openssl and GMP use the same limb size. Otherwise the
3649 existing "conversion via a text string export" trick is still used.
3650 [Paul Sheer <paulsheer@gmail.com>]
3652 *) Zlib compression BIO. This is a filter BIO which compressed and
3653 uncompresses any data passed through it.
3656 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
3657 RFC3394 compatible AES key wrapping.
3660 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
3661 sets string data without copying. X509_ALGOR_set0() and
3662 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
3663 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
3664 from an X509_ATTRIBUTE structure optionally checking it occurs only
3665 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
3669 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
3670 to get the expected BN_FLG_CONSTTIME behavior.
3671 [Bodo Moeller (Google)]
3675 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
3676 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
3677 - added some more tests to do_tests.pl
3678 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
3679 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
3680 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
3681 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
3682 - various changes to netware.pl to enable gcc-cross builds on Win32
3684 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
3685 - various changes to fix missing prototype warnings
3686 - fixed x86nasm.pl to create correct asm files for NASM COFF output
3687 - added AES, WHIRLPOOL and CPUID assembler code to build files
3688 - added missing AES assembler make rules to mk1mf.pl
3689 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
3690 [Guenter Knauf <eflash@gmx.net>]
3692 *) Implement certificate status request TLS extension defined in RFC3546.
3693 A client can set the appropriate parameters and receive the encoded
3694 OCSP response via a callback. A server can query the supplied parameters
3695 and set the encoded OCSP response in the callback. Add simplified examples
3696 to s_client and s_server.
3699 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
3701 *) Fix various bugs:
3702 + Binary incompatibility of ssl_ctx_st structure
3703 + DTLS interoperation with non-compliant servers
3704 + Don't call get_session_cb() without proposed session
3705 + Fix ia64 assembler code
3706 [Andy Polyakov, Steve Henson]
3708 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
3710 *) DTLS Handshake overhaul. There were longstanding issues with
3711 OpenSSL DTLS implementation, which were making it impossible for
3712 RFC 4347 compliant client to communicate with OpenSSL server.
3713 Unfortunately just fixing these incompatibilities would "cut off"
3714 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
3715 server keeps tolerating non RFC compliant syntax. The opposite is
3716 not true, 0.9.8f client can not communicate with earlier server.
3717 This update even addresses CVE-2007-4995.
3720 *) Changes to avoid need for function casts in OpenSSL: some compilers
3721 (gcc 4.2 and later) reject their use.
3722 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
3725 *) Add RFC4507 support to OpenSSL. This includes the corrections in
3726 RFC4507bis. The encrypted ticket format is an encrypted encoded
3727 SSL_SESSION structure, that way new session features are automatically
3730 If a client application caches session in an SSL_SESSION structure
3731 support is transparent because tickets are now stored in the encoded
3734 The SSL_CTX structure automatically generates keys for ticket
3735 protection in servers so again support should be possible
3736 with no application modification.
3738 If a client or server wishes to disable RFC4507 support then the option
3739 SSL_OP_NO_TICKET can be set.
3741 Add a TLS extension debugging callback to allow the contents of any client
3742 or server extensions to be examined.
3744 This work was sponsored by Google.
3747 *) Add initial support for TLS extensions, specifically for the server_name
3748 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
3749 have new members for a host name. The SSL data structure has an
3750 additional member SSL_CTX *initial_ctx so that new sessions can be
3751 stored in that context to allow for session resumption, even after the
3752 SSL has been switched to a new SSL_CTX in reaction to a client's
3753 server_name extension.
3755 New functions (subject to change):
3757 SSL_get_servername()
3758 SSL_get_servername_type()
3761 New CTRL codes and macros (subject to change):
3763 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
3764 - SSL_CTX_set_tlsext_servername_callback()
3765 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
3766 - SSL_CTX_set_tlsext_servername_arg()
3767 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
3769 openssl s_client has a new '-servername ...' option.
3771 openssl s_server has new options '-servername_host ...', '-cert2 ...',
3772 '-key2 ...', '-servername_fatal' (subject to change). This allows
3773 testing the HostName extension for a specific single host name ('-cert'
3774 and '-key' remain fallbacks for handshakes without HostName
3775 negotiation). If the unrecognized_name alert has to be sent, this by
3776 default is a warning; it becomes fatal with the '-servername_fatal'
3779 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
3781 *) Add AES and SSE2 assembly language support to VC++ build.
3784 *) Mitigate attack on final subtraction in Montgomery reduction.
3787 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
3788 (which previously caused an internal error).
3791 *) Squeeze another 10% out of IGE mode when in != out.
3794 *) AES IGE mode speedup.
3795 [Dean Gaudet (Google)]
3797 *) Add the Korean symmetric 128-bit cipher SEED (see
3798 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
3799 add SEED ciphersuites from RFC 4162:
3801 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
3802 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
3803 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
3804 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
3806 To minimize changes between patchlevels in the OpenSSL 0.9.8
3807 series, SEED remains excluded from compilation unless OpenSSL
3808 is configured with 'enable-seed'.
3809 [KISA, Bodo Moeller]
3811 *) Mitigate branch prediction attacks, which can be practical if a
3812 single processor is shared, allowing a spy process to extract
3813 information. For detailed background information, see
3814 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
3815 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
3816 and Necessary Software Countermeasures"). The core of the change
3817 are new versions BN_div_no_branch() and
3818 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
3819 respectively, which are slower, but avoid the security-relevant
3820 conditional branches. These are automatically called by BN_div()
3821 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
3822 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
3823 remove a conditional branch.
3825 BN_FLG_CONSTTIME is the new name for the previous
3826 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
3827 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
3828 in the exponent causes BN_mod_exp_mont() to use the alternative
3829 implementation in BN_mod_exp_mont_consttime().) The old name
3830 remains as a deprecated alias.
3832 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
3833 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
3834 constant-time implementations for more than just exponentiation.
3835 Here too the old name is kept as a deprecated alias.
3837 BN_BLINDING_new() will now use BN_dup() for the modulus so that
3838 the BN_BLINDING structure gets an independent copy of the
3839 modulus. This means that the previous "BIGNUM *m" argument to
3840 BN_BLINDING_new() and to BN_BLINDING_create_param() now
3841 essentially becomes "const BIGNUM *m", although we can't actually
3842 change this in the header file before 0.9.9. It allows
3843 RSA_setup_blinding() to use BN_with_flags() on the modulus to
3844 enable BN_FLG_CONSTTIME.
3846 [Matthew D Wood (Intel Corp)]
3848 *) In the SSL/TLS server implementation, be strict about session ID
3849 context matching (which matters if an application uses a single
3850 external cache for different purposes). Previously,
3851 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
3852 set. This did ensure strict client verification, but meant that,
3853 with applications using a single external cache for quite
3854 different requirements, clients could circumvent ciphersuite
3855 restrictions for a given session ID context by starting a session
3856 in a different context.
3859 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3860 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3861 authentication-only ciphersuites.
3864 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
3865 not complete and could lead to a possible single byte overflow
3866 (CVE-2007-5135) [Ben Laurie]
3868 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
3870 *) Since AES128 and AES256 (and similarly Camellia128 and
3871 Camellia256) share a single mask bit in the logic of
3872 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3873 kludge to work properly if AES128 is available and AES256 isn't
3874 (or if Camellia128 is available and Camellia256 isn't).
3877 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
3878 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
3879 When a point or a seed is encoded in a BIT STRING, we need to
3880 prevent the removal of trailing zero bits to get the proper DER
3881 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
3882 of a NamedBitList, for which trailing 0 bits need to be removed.)
3885 *) Have SSL/TLS server implementation tolerate "mismatched" record
3886 protocol version while receiving ClientHello even if the
3887 ClientHello is fragmented. (The server can't insist on the
3888 particular protocol version it has chosen before the ServerHello
3889 message has informed the client about his choice.)
3892 *) Add RFC 3779 support.
3893 [Rob Austein for ARIN, Ben Laurie]
3895 *) Load error codes if they are not already present instead of using a
3896 static variable. This allows them to be cleanly unloaded and reloaded.
3897 Improve header file function name parsing.
3900 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
3901 or CAPABILITY handshake as required by RFCs.
3904 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
3906 *) Introduce limits to prevent malicious keys being able to
3907 cause a denial of service. (CVE-2006-2940)
3908 [Steve Henson, Bodo Moeller]
3910 *) Fix ASN.1 parsing of certain invalid structures that can result
3911 in a denial of service. (CVE-2006-2937) [Steve Henson]
3913 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3914 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3916 *) Fix SSL client code which could crash if connecting to a
3917 malicious SSLv2 server. (CVE-2006-4343)
3918 [Tavis Ormandy and Will Drewry, Google Security Team]
3920 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
3921 match only those. Before that, "AES256-SHA" would be interpreted
3922 as a pattern and match "AES128-SHA" too (since AES128-SHA got
3923 the same strength classification in 0.9.7h) as we currently only
3924 have a single AES bit in the ciphersuite description bitmap.
3925 That change, however, also applied to ciphersuite strings such as
3926 "RC4-MD5" that intentionally matched multiple ciphersuites --
3927 namely, SSL 2.0 ciphersuites in addition to the more common ones
3928 from SSL 3.0/TLS 1.0.
3930 So we change the selection algorithm again: Naming an explicit
3931 ciphersuite selects this one ciphersuite, and any other similar
3932 ciphersuite (same bitmap) from *other* protocol versions.
3933 Thus, "RC4-MD5" again will properly select both the SSL 2.0
3934 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
3936 Since SSL 2.0 does not have any ciphersuites for which the
3937 128/256 bit distinction would be relevant, this works for now.
3938 The proper fix will be to use different bits for AES128 and
3939 AES256, which would have avoided the problems from the beginning;
3940 however, bits are scarce, so we can only do this in a new release
3941 (not just a patchlevel) when we can change the SSL_CIPHER
3942 definition to split the single 'unsigned long mask' bitmap into
3943 multiple values to extend the available space.
3947 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
3949 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3950 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3952 *) Add AES IGE and biIGE modes.
3955 *) Change the Unix randomness entropy gathering to use poll() when
3956 possible instead of select(), since the latter has some
3957 undesirable limitations.
3958 [Darryl Miles via Richard Levitte and Bodo Moeller]
3960 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
3961 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
3962 cannot be implicitly activated as part of, e.g., the "AES" alias.
3963 However, please upgrade to OpenSSL 0.9.9[-dev] for
3964 non-experimental use of the ECC ciphersuites to get TLS extension
3965 support, which is required for curve and point format negotiation
3966 to avoid potential handshake problems.
3969 *) Disable rogue ciphersuites:
3971 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3972 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3973 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3975 The latter two were purportedly from
3976 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3979 Also deactivate the remaining ciphersuites from
3980 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3981 unofficial, and the ID has long expired.
3984 *) Fix RSA blinding Heisenbug (problems sometimes occurred on
3985 dual-core machines) and other potential thread-safety issues.
3988 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
3989 versions), which is now available for royalty-free use
3990 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
3991 Also, add Camellia TLS ciphersuites from RFC 4132.
3993 To minimize changes between patchlevels in the OpenSSL 0.9.8
3994 series, Camellia remains excluded from compilation unless OpenSSL
3995 is configured with 'enable-camellia'.
3998 *) Disable the padding bug check when compression is in use. The padding
3999 bug check assumes the first packet is of even length, this is not
4000 necessarily true if compresssion is enabled and can result in false
4001 positives causing handshake failure. The actual bug test is ancient
4002 code so it is hoped that implementations will either have fixed it by
4003 now or any which still have the bug do not support compression.
4006 Changes between 0.9.8a and 0.9.8b [04 May 2006]
4008 *) When applying a cipher rule check to see if string match is an explicit
4009 cipher suite and only match that one cipher suite if it is.
4012 *) Link in manifests for VC++ if needed.
4013 [Austin Ziegler <halostatue@gmail.com>]
4015 *) Update support for ECC-based TLS ciphersuites according to
4016 draft-ietf-tls-ecc-12.txt with proposed changes (but without
4017 TLS extensions, which are supported starting with the 0.9.9
4018 branch, not in the OpenSSL 0.9.8 branch).
4021 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
4022 opaque EVP_CIPHER_CTX handling.
4025 *) Fixes and enhancements to zlib compression code. We now only use
4026 "zlib1.dll" and use the default __cdecl calling convention on Win32
4027 to conform with the standards mentioned here:
4028 http://www.zlib.net/DLL_FAQ.txt
4029 Static zlib linking now works on Windows and the new --with-zlib-include
4030 --with-zlib-lib options to Configure can be used to supply the location
4031 of the headers and library. Gracefully handle case where zlib library
4035 *) Several fixes and enhancements to the OID generation code. The old code
4036 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
4037 handle numbers larger than ULONG_MAX, truncated printing and had a
4038 non standard OBJ_obj2txt() behaviour.
4041 *) Add support for building of engines under engine/ as shared libraries
4042 under VC++ build system.
4045 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
4046 Hopefully, we will not see any false combination of paths any more.
4049 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
4051 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
4052 (part of SSL_OP_ALL). This option used to disable the
4053 countermeasure against man-in-the-middle protocol-version
4054 rollback in the SSL 2.0 server implementation, which is a bad
4055 idea. (CVE-2005-2969)
4057 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
4058 for Information Security, National Institute of Advanced Industrial
4059 Science and Technology [AIST], Japan)]
4061 *) Add two function to clear and return the verify parameter flags.
4064 *) Keep cipherlists sorted in the source instead of sorting them at
4065 runtime, thus removing the need for a lock.
4068 *) Avoid some small subgroup attacks in Diffie-Hellman.
4069 [Nick Mathewson and Ben Laurie]
4071 *) Add functions for well-known primes.
4074 *) Extended Windows CE support.
4075 [Satoshi Nakamura and Andy Polyakov]
4077 *) Initialize SSL_METHOD structures at compile time instead of during
4078 runtime, thus removing the need for a lock.
4081 *) Make PKCS7_decrypt() work even if no certificate is supplied by
4082 attempting to decrypt each encrypted key in turn. Add support to
4086 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
4088 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
4091 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
4094 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
4095 key into the same file any more.
4098 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
4101 *) Add -utf8 command line and config file option to 'ca'.
4102 [Stefan <stf@udoma.org]
4104 *) Removed the macro des_crypt(), as it seems to conflict with some
4105 libraries. Use DES_crypt().
4108 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
4109 involves renaming the source and generated shared-libs for
4110 both. The engines will accept the corrected or legacy ids
4111 ('ncipher' and '4758_cca' respectively) when binding. NB,
4112 this only applies when building 'shared'.
4113 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
4115 *) Add attribute functions to EVP_PKEY structure. Modify
4116 PKCS12_create() to recognize a CSP name attribute and
4117 use it. Make -CSP option work again in pkcs12 utility.
4120 *) Add new functionality to the bn blinding code:
4121 - automatic re-creation of the BN_BLINDING parameters after
4122 a fixed number of uses (currently 32)
4123 - add new function for parameter creation
4124 - introduce flags to control the update behaviour of the
4125 BN_BLINDING parameters
4126 - hide BN_BLINDING structure
4127 Add a second BN_BLINDING slot to the RSA structure to improve
4128 performance when a single RSA object is shared among several
4132 *) Add support for DTLS.
4133 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
4135 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
4136 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
4139 *) Remove buggy and incomplete DH cert support from
4140 ssl/ssl_rsa.c and ssl/s3_both.c
4143 *) Use SHA-1 instead of MD5 as the default digest algorithm for
4144 the apps/openssl applications.
4147 *) Compile clean with "-Wall -Wmissing-prototypes
4148 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
4149 DEBUG_SAFESTACK must also be set.
4152 *) Change ./Configure so that certain algorithms can be disabled by default.
4153 The new counterpiece to "no-xxx" is "enable-xxx".
4155 The patented RC5 and MDC2 algorithms will now be disabled unless
4156 "enable-rc5" and "enable-mdc2", respectively, are specified.
4158 (IDEA remains enabled despite being patented. This is because IDEA
4159 is frequently required for interoperability, and there is no license
4160 fee for non-commercial use. As before, "no-idea" can be used to
4161 avoid this algorithm.)
4165 *) Add processing of proxy certificates (see RFC 3820). This work was
4166 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
4167 EGEE (Enabling Grids for E-science in Europe).
4170 *) RC4 performance overhaul on modern architectures/implementations, such
4171 as Intel P4, IA-64 and AMD64.
4174 *) New utility extract-section.pl. This can be used specify an alternative
4175 section number in a pod file instead of having to treat each file as
4176 a separate case in Makefile. This can be done by adding two lines to the
4179 =for comment openssl_section:XXX
4181 The blank line is mandatory.
4185 *) New arguments -certform, -keyform and -pass for s_client and s_server
4186 to allow alternative format key and certificate files and passphrase
4190 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
4191 update associated structures and add various utility functions.
4193 Add new policy related verify parameters, include policy checking in
4194 standard verify code. Enhance 'smime' application with extra parameters
4195 to support policy checking and print out.
4198 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
4199 Nehemiah processors. These extensions support AES encryption in hardware
4200 as well as RNG (though RNG support is currently disabled).
4201 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
4203 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
4206 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
4207 [Andy Polyakov and a number of other people]
4209 *) Improved PowerPC platform support. Most notably BIGNUM assembler
4210 implementation contributed by IBM.
4211 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
4213 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
4214 exponent rather than 'unsigned long'. There is a corresponding change to
4215 the new 'rsa_keygen' element of the RSA_METHOD structure.
4216 [Jelte Jansen, Geoff Thorpe]
4218 *) Functionality for creating the initial serial number file is now
4219 moved from CA.pl to the 'ca' utility with a new option -create_serial.
4221 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
4222 number file to 1, which is bound to cause problems. To avoid
4223 the problems while respecting compatibility between different 0.9.7
4224 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
4225 CA.pl for serial number initialization. With the new release 0.9.8,
4226 we can fix the problem directly in the 'ca' utility.)
4229 *) Reduced header interdepencies by declaring more opaque objects in
4230 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
4231 give fewer recursive includes, which could break lazy source code - so
4232 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
4233 developers should define this symbol when building and using openssl to
4234 ensure they track the recommended behaviour, interfaces, [etc], but
4235 backwards-compatible behaviour prevails when this isn't defined.
4238 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
4241 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
4242 This will generate a random key of the appropriate length based on the
4243 cipher context. The EVP_CIPHER can provide its own random key generation
4244 routine to support keys of a specific form. This is used in the des and
4245 3des routines to generate a key of the correct parity. Update S/MIME
4246 code to use new functions and hence generate correct parity DES keys.
4247 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
4248 valid (weak or incorrect parity).
4251 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
4252 as looking them up. This is useful when the verified structure may contain
4253 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
4254 present unless the new PKCS7_NO_CRL flag is asserted.
4257 *) Extend ASN1 oid configuration module. It now additionally accepts the
4260 shortName = some long name, 1.2.3.4
4263 *) Reimplemented the BN_CTX implementation. There is now no more static
4264 limitation on the number of variables it can handle nor the depth of the
4265 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
4266 information can now expand as required, and rather than having a single
4267 static array of bignums, BN_CTX now uses a linked-list of such arrays
4268 allowing it to expand on demand whilst maintaining the usefulness of
4269 BN_CTX's "bundling".
4272 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
4273 to allow all RSA operations to function using a single BN_CTX.
4276 *) Preliminary support for certificate policy evaluation and checking. This
4277 is initially intended to pass the tests outlined in "Conformance Testing
4278 of Relying Party Client Certificate Path Processing Logic" v1.07.
4281 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
4282 remained unused and not that useful. A variety of other little bignum
4283 tweaks and fixes have also been made continuing on from the audit (see
4287 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
4288 associated ASN1, EVP and SSL functions and old ASN1 macros.
4291 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
4292 and this should never fail. So the return value from the use of
4293 BN_set_word() (which can fail due to needless expansion) is now deprecated;
4294 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
4297 *) BN_CTX_get() should return zero-valued bignums, providing the same
4298 initialised value as BN_new().
4299 [Geoff Thorpe, suggested by Ulf Möller]
4301 *) Support for inhibitAnyPolicy certificate extension.
4304 *) An audit of the BIGNUM code is underway, for which debugging code is
4305 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
4306 is considered valid when processing BIGNUMs, and causes execution to
4307 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
4308 further steps are taken to deliberately pollute unused data in BIGNUM
4309 structures to try and expose faulty code further on. For now, openssl will
4310 (in its default mode of operation) continue to tolerate the inconsistent
4311 forms that it has tolerated in the past, but authors and packagers should
4312 consider trying openssl and their own applications when compiled with
4313 these debugging symbols defined. It will help highlight potential bugs in
4314 their own code, and will improve the test coverage for OpenSSL itself. At
4315 some point, these tighter rules will become openssl's default to improve
4316 maintainability, though the assert()s and other overheads will remain only
4317 in debugging configurations. See bn.h for more details.
4318 [Geoff Thorpe, Nils Larsch, Ulf Möller]
4320 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
4321 that can only be obtained through BN_CTX_new() (which implicitly
4322 initialises it). The presence of this function only made it possible
4323 to overwrite an existing structure (and cause memory leaks).
4326 *) Because of the callback-based approach for implementing LHASH as a
4327 template type, lh_insert() adds opaque objects to hash-tables and
4328 lh_doall() or lh_doall_arg() are typically used with a destructor callback
4329 to clean up those corresponding objects before destroying the hash table
4330 (and losing the object pointers). So some over-zealous constifications in
4331 LHASH have been relaxed so that lh_insert() does not take (nor store) the
4332 objects as "const" and the lh_doall[_arg] callback wrappers are not
4333 prototyped to have "const" restrictions on the object pointers they are
4334 given (and so aren't required to cast them away any more).
4337 *) The tmdiff.h API was so ugly and minimal that our own timing utility
4338 (speed) prefers to use its own implementation. The two implementations
4339 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
4340 its object type properly exposed (MS_TM) instead of casting to/from "char
4341 *". This may still change yet if someone realises MS_TM and "ms_time_***"
4342 aren't necessarily the greatest nomenclatures - but this is what was used
4343 internally to the implementation so I've used that for now.
4346 *) Ensure that deprecated functions do not get compiled when
4347 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
4348 the self-tests were still using deprecated key-generation functions so
4349 these have been updated also.
4352 *) Reorganise PKCS#7 code to separate the digest location functionality
4353 into PKCS7_find_digest(), digest addition into PKCS7_bio_add_digest().
4354 New function PKCS7_set_digest() to set the digest type for PKCS#7
4355 digestedData type. Add additional code to correctly generate the
4356 digestedData type and add support for this type in PKCS7 initialization
4360 *) New function PKCS7_set0_type_other() this initializes a PKCS7
4361 structure of type "other".
4364 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
4365 sure the loop does correctly stop and breaking ("division by zero")
4366 modulus operations are not performed. The (pre-generated) prime
4367 table crypto/bn/bn_prime.h was already correct, but it could not be
4368 re-generated on some platforms because of the "division by zero"
4369 situation in the script.
4370 [Ralf S. Engelschall]
4372 *) Update support for ECC-based TLS ciphersuites according to
4373 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
4374 SHA-1 now is only used for "small" curves (where the
4375 representation of a field element takes up to 24 bytes); for
4376 larger curves, the field element resulting from ECDH is directly
4377 used as premaster secret.
4378 [Douglas Stebila (Sun Microsystems Laboratories)]
4380 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
4381 curve secp160r1 to the tests.
4382 [Douglas Stebila (Sun Microsystems Laboratories)]
4384 *) Add the possibility to load symbols globally with DSO.
4385 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
4387 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
4388 control of the error stack.
4391 *) Add support for STORE in ENGINE.
4394 *) Add the STORE type. The intention is to provide a common interface
4395 to certificate and key stores, be they simple file-based stores, or
4396 HSM-type store, or LDAP stores, or...
4397 NOTE: The code is currently UNTESTED and isn't really used anywhere.
4400 *) Add a generic structure called OPENSSL_ITEM. This can be used to
4401 pass a list of arguments to any function as well as provide a way
4402 for a function to pass data back to the caller.
4405 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
4406 works like BUF_strdup() but can be used to duplicate a portion of
4407 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
4411 *) Add the function sk_find_ex() which works like sk_find(), but will
4412 return an index to an element even if an exact match couldn't be
4413 found. The index is guaranteed to point at the element where the
4414 searched-for key would be inserted to preserve sorting order.
4417 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
4418 takes an extra flags argument for optional functionality. Currently,
4419 the following flags are defined:
4421 OBJ_BSEARCH_VALUE_ON_NOMATCH
4422 This one gets OBJ_bsearch_ex() to return a pointer to the first
4423 element where the comparing function returns a negative or zero
4426 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
4427 This one gets OBJ_bsearch_ex() to return a pointer to the first
4428 element where the comparing function returns zero. This is useful
4429 if there are more than one element where the comparing function
4433 *) Make it possible to create self-signed certificates with 'openssl ca'
4434 in such a way that the self-signed certificate becomes part of the
4435 CA database and uses the same mechanisms for serial number generation
4436 as all other certificate signing. The new flag '-selfsign' enables
4437 this functionality. Adapt CA.sh and CA.pl.in.
4440 *) Add functionality to check the public key of a certificate request
4441 against a given private. This is useful to check that a certificate
4442 request can be signed by that key (self-signing).
4445 *) Make it possible to have multiple active certificates with the same
4446 subject in the CA index file. This is done only if the keyword
4447 'unique_subject' is set to 'no' in the main CA section (default
4448 if 'CA_default') of the configuration file. The value is saved
4449 with the database itself in a separate index attribute file,
4450 named like the index file with '.attr' appended to the name.
4453 *) Generate muti valued AVAs using '+' notation in config files for
4457 *) Support for nameConstraints certificate extension.
4460 *) Support for policyConstraints certificate extension.
4463 *) Support for policyMappings certificate extension.
4466 *) Make sure the default DSA_METHOD implementation only uses its
4467 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
4468 and change its own handlers to be NULL so as to remove unnecessary
4469 indirection. This lets alternative implementations fallback to the
4470 default implementation more easily.
4473 *) Support for directoryName in GeneralName related extensions
4477 *) Make it possible to link applications using Makefile.shared.
4478 Make that possible even when linking against static libraries!
4481 *) Support for single pass processing for S/MIME signing. This now
4482 means that S/MIME signing can be done from a pipe, in addition
4483 cleartext signing (multipart/signed type) is effectively streaming
4484 and the signed data does not need to be all held in memory.
4486 This is done with a new flag PKCS7_STREAM. When this flag is set
4487 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
4488 is done after the data is output (and digests calculated) in
4489 SMIME_write_PKCS7().
4492 *) Add full support for -rpath/-R, both in shared libraries and
4493 applications, at least on the platforms where it's known how
4497 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
4498 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
4499 will now compute a table of multiples of the generator that
4500 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
4501 faster (notably in the case of a single point multiplication,
4502 scalar * generator).
4503 [Nils Larsch, Bodo Moeller]
4505 *) IPv6 support for certificate extensions. The various extensions
4506 which use the IP:a.b.c.d can now take IPv6 addresses using the
4507 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
4511 *) Added an ENGINE that implements RSA by performing private key
4512 exponentiations with the GMP library. The conversions to and from
4513 GMP's mpz_t format aren't optimised nor are any montgomery forms
4514 cached, and on x86 it appears OpenSSL's own performance has caught up.
4515 However there are likely to be other architectures where GMP could
4516 provide a boost. This ENGINE is not built in by default, but it can be
4517 specified at Configure time and should be accompanied by the necessary
4518 linker additions, eg;
4519 ./config -DOPENSSL_USE_GMP -lgmp
4522 *) "openssl engine" will not display ENGINE/DSO load failure errors when
4523 testing availability of engines with "-t" - the old behaviour is
4524 produced by increasing the feature's verbosity with "-tt".
4527 *) ECDSA routines: under certain error conditions uninitialized BN objects
4528 could be freed. Solution: make sure initialization is performed early
4529 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
4533 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
4534 and DH_METHOD (eg. by ENGINE implementations) to override the normal
4535 software implementations. For DSA and DH, parameter generation can
4536 also be overriden by providing the appropriate method callbacks.
4539 *) Change the "progress" mechanism used in key-generation and
4540 primality testing to functions that take a new BN_GENCB pointer in
4541 place of callback/argument pairs. The new API functions have "_ex"
4542 postfixes and the older functions are reimplemented as wrappers for
4543 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
4544 declarations of the old functions to help (graceful) attempts to
4545 migrate to the new functions. Also, the new key-generation API
4546 functions operate on a caller-supplied key-structure and return
4547 success/failure rather than returning a key or NULL - this is to
4548 help make "keygen" another member function of RSA_METHOD etc.
4550 Example for using the new callback interface:
4552 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
4556 BN_GENCB_set(&my_cb, my_callback, my_arg);
4558 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
4559 /* For the meaning of a, b in calls to my_callback(), see the
4560 * documentation of the function that calls the callback.
4561 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
4562 * my_callback should return 1 if it wants BN_is_prime_ex()
4563 * to continue, or 0 to stop.
4568 *) Change the ZLIB compression method to be stateful, and make it
4569 available to TLS with the number defined in
4570 draft-ietf-tls-compression-04.txt.
4573 *) Add the ASN.1 structures and functions for CertificatePair, which
4574 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
4576 CertificatePair ::= SEQUENCE {
4577 forward [0] Certificate OPTIONAL,
4578 reverse [1] Certificate OPTIONAL,
4579 -- at least one of the pair shall be present -- }
4581 Also implement the PEM functions to read and write certificate
4582 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
4584 This needed to be defined, mostly for the sake of the LDAP
4585 attribute crossCertificatePair, but may prove useful elsewhere as
4589 *) Make it possible to inhibit symlinking of shared libraries in
4590 Makefile.shared, for Cygwin's sake.
4593 *) Extend the BIGNUM API by creating a function
4594 void BN_set_negative(BIGNUM *a, int neg);
4595 and a macro that behave like
4596 int BN_is_negative(const BIGNUM *a);
4598 to avoid the need to access 'a->neg' directly in applications.
4601 *) Implement fast modular reduction for pseudo-Mersenne primes
4602 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
4603 EC_GROUP_new_curve_GFp() will now automatically use this
4605 [Nils Larsch <nla@trustcenter.de>]
4607 *) Add new lock type (CRYPTO_LOCK_BN).
4610 *) Change the ENGINE framework to automatically load engines
4611 dynamically from specific directories unless they could be
4612 found to already be built in or loaded. Move all the
4613 current engines except for the cryptodev one to a new
4615 The engines in engines/ are built as shared libraries if
4616 the "shared" options was given to ./Configure or ./config.
4617 Otherwise, they are inserted in libcrypto.a.
4618 /usr/local/ssl/engines is the default directory for dynamic
4619 engines, but that can be overriden at configure time through
4620 the usual use of --prefix and/or --openssldir, and at run
4621 time with the environment variable OPENSSL_ENGINES.
4622 [Geoff Thorpe and Richard Levitte]
4624 *) Add Makefile.shared, a helper makefile to build shared
4625 libraries. Adapt Makefile.org.
4628 *) Add version info to Win32 DLLs.
4629 [Peter 'Luna' Runestig" <peter@runestig.com>]
4631 *) Add new 'medium level' PKCS#12 API. Certificates and keys
4632 can be added using this API to created arbitrary PKCS#12
4633 files while avoiding the low level API.
4635 New options to PKCS12_create(), key or cert can be NULL and
4636 will then be omitted from the output file. The encryption
4637 algorithm NIDs can be set to -1 for no encryption, the mac
4638 iteration count can be set to 0 to omit the mac.
4640 Enhance pkcs12 utility by making the -nokeys and -nocerts
4641 options work when creating a PKCS#12 file. New option -nomac
4642 to omit the mac, NONE can be set for an encryption algorithm.
4643 New code is modified to use the enhanced PKCS12_create()
4644 instead of the low level API.
4647 *) Extend ASN1 encoder to support indefinite length constructed
4648 encoding. This can output sequences tags and octet strings in
4649 this form. Modify pk7_asn1.c to support indefinite length
4650 encoding. This is experimental and needs additional code to
4651 be useful, such as an ASN1 bio and some enhanced streaming
4654 Extend template encode functionality so that tagging is passed
4655 down to the template encoder.
4658 *) Let 'openssl req' fail if an argument to '-newkey' is not
4659 recognized instead of using RSA as a default.
4662 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
4663 As these are not official, they are not included in "ALL";
4664 the "ECCdraft" ciphersuite group alias can be used to select them.
4665 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
4667 *) Add ECDH engine support.
4668 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
4670 *) Add ECDH in new directory crypto/ecdh/.
4671 [Douglas Stebila (Sun Microsystems Laboratories)]
4673 *) Let BN_rand_range() abort with an error after 100 iterations
4674 without success (which indicates a broken PRNG).
4677 *) Change BN_mod_sqrt() so that it verifies that the input value
4678 is really the square of the return value. (Previously,
4679 BN_mod_sqrt would show GIGO behaviour.)
4682 *) Add named elliptic curves over binary fields from X9.62, SECG,
4683 and WAP/WTLS; add OIDs that were still missing.
4685 [Sheueling Chang Shantz and Douglas Stebila
4686 (Sun Microsystems Laboratories)]
4688 *) Extend the EC library for elliptic curves over binary fields
4689 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
4692 EC_GF2m_simple_method
4696 EC_GROUP_new_curve_GF2m
4697 EC_GROUP_set_curve_GF2m
4698 EC_GROUP_get_curve_GF2m
4699 EC_POINT_set_affine_coordinates_GF2m
4700 EC_POINT_get_affine_coordinates_GF2m
4701 EC_POINT_set_compressed_coordinates_GF2m
4703 Point compression for binary fields is disabled by default for
4704 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
4707 As binary polynomials are represented as BIGNUMs, various members
4708 of the EC_GROUP and EC_POINT data structures can be shared
4709 between the implementations for prime fields and binary fields;
4710 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
4711 are essentially identical to their ..._GFp counterparts.
4712 (For simplicity, the '..._GFp' prefix has been dropped from
4713 various internal method names.)
4715 An internal 'field_div' method (similar to 'field_mul' and
4716 'field_sqr') has been added; this is used only for binary fields.
4718 [Sheueling Chang Shantz and Douglas Stebila
4719 (Sun Microsystems Laboratories)]
4721 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
4722 through methods ('mul', 'precompute_mult').
4724 The generic implementations (now internally called 'ec_wNAF_mul'
4725 and 'ec_wNAF_precomputed_mult') remain the default if these
4726 methods are undefined.
4728 [Sheueling Chang Shantz and Douglas Stebila
4729 (Sun Microsystems Laboratories)]
4731 *) New function EC_GROUP_get_degree, which is defined through
4732 EC_METHOD. For curves over prime fields, this returns the bit
4733 length of the modulus.
4735 [Sheueling Chang Shantz and Douglas Stebila
4736 (Sun Microsystems Laboratories)]
4738 *) New functions EC_GROUP_dup, EC_POINT_dup.
4739 (These simply call ..._new and ..._copy).
4741 [Sheueling Chang Shantz and Douglas Stebila
4742 (Sun Microsystems Laboratories)]
4744 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
4745 Polynomials are represented as BIGNUMs (where the sign bit is not
4746 used) in the following functions [macros]:
4749 BN_GF2m_sub [= BN_GF2m_add]
4750 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
4751 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
4752 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
4754 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
4755 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
4756 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
4757 BN_GF2m_cmp [= BN_ucmp]
4759 (Note that only the 'mod' functions are actually for fields GF(2^m).
4760 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
4762 For some functions, an the irreducible polynomial defining a
4763 field can be given as an 'unsigned int[]' with strictly
4764 decreasing elements giving the indices of those bits that are set;
4765 i.e., p[] represents the polynomial
4766 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
4768 p[0] > p[1] > ... > p[k] = 0.
4769 This applies to the following functions:
4774 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
4775 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
4777 BN_GF2m_mod_sqrt_arr
4778 BN_GF2m_mod_solve_quad_arr
4782 Conversion can be performed by the following functions:
4787 bntest.c has additional tests for binary polynomial arithmetic.
4789 Two implementations for BN_GF2m_mod_div() are available.
4790 The default algorithm simply uses BN_GF2m_mod_inv() and
4791 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
4792 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
4793 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
4795 [Sheueling Chang Shantz and Douglas Stebila
4796 (Sun Microsystems Laboratories)]
4798 *) Add new error code 'ERR_R_DISABLED' that can be used when some
4799 functionality is disabled at compile-time.
4800 [Douglas Stebila <douglas.stebila@sun.com>]
4802 *) Change default behaviour of 'openssl asn1parse' so that more
4803 information is visible when viewing, e.g., a certificate:
4805 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
4806 mode the content of non-printable OCTET STRINGs is output in a
4807 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
4808 avoid the appearance of a printable string.
4809 [Nils Larsch <nla@trustcenter.de>]
4811 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
4813 EC_GROUP_set_asn1_flag()
4814 EC_GROUP_get_asn1_flag()
4815 EC_GROUP_set_point_conversion_form()
4816 EC_GROUP_get_point_conversion_form()
4817 These control ASN1 encoding details:
4818 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
4819 has been set to OPENSSL_EC_NAMED_CURVE.
4820 - Points are encoded in uncompressed form by default; options for
4821 asn1_for are as for point2oct, namely
4822 POINT_CONVERSION_COMPRESSED
4823 POINT_CONVERSION_UNCOMPRESSED
4824 POINT_CONVERSION_HYBRID
4826 Also add 'seed' and 'seed_len' members to EC_GROUP with access
4829 EC_GROUP_get0_seed()
4830 EC_GROUP_get_seed_len()
4831 This is used only for ASN1 purposes (so far).
4832 [Nils Larsch <nla@trustcenter.de>]
4834 *) Add 'field_type' member to EC_METHOD, which holds the NID
4835 of the appropriate field type OID. The new function
4836 EC_METHOD_get_field_type() returns this value.
4837 [Nils Larsch <nla@trustcenter.de>]
4842 EC_POINT_point2hex()
4843 EC_POINT_hex2point()
4844 providing useful interfaces to EC_POINT_point2oct() and
4845 EC_POINT_oct2point().
4846 [Nils Larsch <nla@trustcenter.de>]
4848 *) Change internals of the EC library so that the functions
4849 EC_GROUP_set_generator()
4850 EC_GROUP_get_generator()
4851 EC_GROUP_get_order()
4852 EC_GROUP_get_cofactor()
4853 are implemented directly in crypto/ec/ec_lib.c and not dispatched
4854 to methods, which would lead to unnecessary code duplication when
4855 adding different types of curves.
4856 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
4858 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
4859 arithmetic, and such that modified wNAFs are generated
4860 (which avoid length expansion in many cases).
4863 *) Add a function EC_GROUP_check_discriminant() (defined via
4864 EC_METHOD) that verifies that the curve discriminant is non-zero.
4866 Add a function EC_GROUP_check() that makes some sanity tests
4867 on a EC_GROUP, its generator and order. This includes
4868 EC_GROUP_check_discriminant().
4869 [Nils Larsch <nla@trustcenter.de>]
4871 *) Add ECDSA in new directory crypto/ecdsa/.
4873 Add applications 'openssl ecparam' and 'openssl ecdsa'
4874 (these are based on 'openssl dsaparam' and 'openssl dsa').
4876 ECDSA support is also included in various other files across the
4877 library. Most notably,
4878 - 'openssl req' now has a '-newkey ecdsa:file' option;
4879 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
4880 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
4881 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
4882 them suitable for ECDSA where domain parameters must be
4883 extracted before the specific public key;
4884 - ECDSA engine support has been added.
4885 [Nils Larsch <nla@trustcenter.de>]
4887 *) Include some named elliptic curves, and add OIDs from X9.62,
4888 SECG, and WAP/WTLS. Each curve can be obtained from the new
4890 EC_GROUP_new_by_curve_name(),
4891 and the list of available named curves can be obtained with
4892 EC_get_builtin_curves().
4893 Also add a 'curve_name' member to EC_GROUP objects, which can be
4895 EC_GROUP_set_curve_name()
4896 EC_GROUP_get_curve_name()
4897 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
4899 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4900 was actually never needed) and in BN_mul(). The removal in BN_mul()
4901 required a small change in bn_mul_part_recursive() and the addition
4902 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4903 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4904 bn_sub_words() and bn_add_words() except they take arrays with
4908 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
4910 *) Cleanse PEM buffers before freeing them since they may contain
4912 [Benjamin Bennett <ben@psc.edu>]
4914 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
4915 a ciphersuite string such as "DEFAULT:RSA" cannot enable
4916 authentication-only ciphersuites.
4919 *) Since AES128 and AES256 share a single mask bit in the logic of
4920 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
4921 kludge to work properly if AES128 is available and AES256 isn't.
4924 *) Expand security boundary to match 1.1.1 module.
4927 *) Remove redundant features: hash file source, editing of test vectors
4928 modify fipsld to use external fips_premain.c signature.
4931 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
4932 run algorithm test programs.
4935 *) Make algorithm test programs more tolerant of whitespace.
4938 *) Have SSL/TLS server implementation tolerate "mismatched" record
4939 protocol version while receiving ClientHello even if the
4940 ClientHello is fragmented. (The server can't insist on the
4941 particular protocol version it has chosen before the ServerHello
4942 message has informed the client about his choice.)
4945 *) Load error codes if they are not already present instead of using a
4946 static variable. This allows them to be cleanly unloaded and reloaded.
4949 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
4951 *) Introduce limits to prevent malicious keys being able to
4952 cause a denial of service. (CVE-2006-2940)
4953 [Steve Henson, Bodo Moeller]
4955 *) Fix ASN.1 parsing of certain invalid structures that can result
4956 in a denial of service. (CVE-2006-2937) [Steve Henson]
4958 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
4959 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
4961 *) Fix SSL client code which could crash if connecting to a
4962 malicious SSLv2 server. (CVE-2006-4343)
4963 [Tavis Ormandy and Will Drewry, Google Security Team]
4965 *) Change ciphersuite string processing so that an explicit
4966 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
4967 will no longer include "AES128-SHA"), and any other similar
4968 ciphersuite (same bitmap) from *other* protocol versions (so that
4969 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
4970 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
4971 changes from 0.9.8b and 0.9.8d.
4974 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
4976 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
4977 (CVE-2006-4339) [Ben Laurie and Google Security Team]
4979 *) Change the Unix randomness entropy gathering to use poll() when
4980 possible instead of select(), since the latter has some
4981 undesirable limitations.
4982 [Darryl Miles via Richard Levitte and Bodo Moeller]
4984 *) Disable rogue ciphersuites:
4986 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
4987 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
4988 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
4990 The latter two were purportedly from
4991 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
4994 Also deactive the remaining ciphersuites from
4995 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
4996 unofficial, and the ID has long expired.
4999 *) Fix RSA blinding Heisenbug (problems sometimes occurred on
5000 dual-core machines) and other potential thread-safety issues.
5003 Changes between 0.9.7i and 0.9.7j [04 May 2006]
5005 *) Adapt fipsld and the build system to link against the validated FIPS
5006 module in FIPS mode.
5009 *) Fixes for VC++ 2005 build under Windows.
5012 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
5013 from a Windows bash shell such as MSYS. It is autodetected from the
5014 "config" script when run from a VC++ environment. Modify standard VC++
5015 build to use fipscanister.o from the GNU make build.
5018 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
5020 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
5021 The value now differs depending on if you build for FIPS or not.
5022 BEWARE! A program linked with a shared FIPSed libcrypto can't be
5023 safely run with a non-FIPSed libcrypto, as it may crash because of
5024 the difference induced by this change.
5027 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
5029 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
5030 (part of SSL_OP_ALL). This option used to disable the
5031 countermeasure against man-in-the-middle protocol-version
5032 rollback in the SSL 2.0 server implementation, which is a bad
5033 idea. (CVE-2005-2969)
5035 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
5036 for Information Security, National Institute of Advanced Industrial
5037 Science and Technology [AIST], Japan)]
5039 *) Minimal support for X9.31 signatures and PSS padding modes. This is
5040 mainly for FIPS compliance and not fully integrated at this stage.
5043 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
5044 the exponentiation using a fixed-length exponent. (Otherwise,
5045 the information leaked through timing could expose the secret key
5046 after many signatures; cf. Bleichenbacher's attack on DSA with
5050 *) Make a new fixed-window mod_exp implementation the default for
5051 RSA, DSA, and DH private-key operations so that the sequence of
5052 squares and multiplies and the memory access pattern are
5053 independent of the particular secret key. This will mitigate
5054 cache-timing and potential related attacks.
5056 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
5057 and this is automatically used by BN_mod_exp_mont() if the new flag
5058 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
5059 will use this BN flag for private exponents unless the flag
5060 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
5061 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
5063 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
5065 *) Change the client implementation for SSLv23_method() and
5066 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
5067 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
5068 (Previously, the SSL 2.0 backwards compatible Client Hello
5069 message format would be used even with SSL_OP_NO_SSLv2.)
5072 *) Add support for smime-type MIME parameter in S/MIME messages which some
5076 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
5077 a threadsafe manner. Modify rsa code to use new function and add calls
5078 to dsa and dh code (which had race conditions before).
5081 *) Include the fixed error library code in the C error file definitions
5082 instead of fixing them up at runtime. This keeps the error code
5083 structures constant.
5086 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
5088 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
5091 *) Fixes for newer kerberos headers. NB: the casts are needed because
5092 the 'length' field is signed on one version and unsigned on another
5093 with no (?) obvious way to tell the difference, without these VC++
5094 complains. Also the "definition" of FAR (blank) is no longer included
5095 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
5096 some needed definitions.
5099 *) Undo Cygwin change.
5102 *) Added support for proxy certificates according to RFC 3820.
5103 Because they may be a security thread to unaware applications,
5104 they must be explicitly allowed in run-time. See
5105 docs/HOWTO/proxy_certificates.txt for further information.
5108 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
5110 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
5111 server and client random values. Previously
5112 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
5113 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
5115 This change has negligible security impact because:
5117 1. Server and client random values still have 24 bytes of pseudo random
5120 2. Server and client random values are sent in the clear in the initial
5123 3. The master secret is derived using the premaster secret (48 bytes in
5124 size for static RSA ciphersuites) as well as client server and random
5127 The OpenSSL team would like to thank the UK NISCC for bringing this issue
5130 [Stephen Henson, reported by UK NISCC]
5132 *) Use Windows randomness collection on Cygwin.
5135 *) Fix hang in EGD/PRNGD query when communication socket is closed
5136 prematurely by EGD/PRNGD.
5137 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
5139 *) Prompt for pass phrases when appropriate for PKCS12 input format.
5142 *) Back-port of selected performance improvements from development
5143 branch, as well as improved support for PowerPC platforms.
5146 *) Add lots of checks for memory allocation failure, error codes to indicate
5147 failure and freeing up memory if a failure occurs.
5148 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
5150 *) Add new -passin argument to dgst.
5153 *) Perform some character comparisons of different types in X509_NAME_cmp:
5154 this is needed for some certificates that reencode DNs into UTF8Strings
5155 (in violation of RFC3280) and can't or wont issue name rollover
5159 *) Make an explicit check during certificate validation to see that
5160 the CA setting in each certificate on the chain is correct. As a
5161 side effect always do the following basic checks on extensions,
5162 not just when there's an associated purpose to the check:
5164 - if there is an unhandled critical extension (unless the user
5165 has chosen to ignore this fault)
5166 - if the path length has been exceeded (if one is set at all)
5167 - that certain extensions fit the associated purpose (if one has
5171 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
5173 *) Avoid a race condition when CRLs are checked in a multi threaded
5174 environment. This would happen due to the reordering of the revoked
5175 entries during signature checking and serial number lookup. Now the
5176 encoding is cached and the serial number sort performed under a lock.
5177 Add new STACK function sk_is_sorted().
5180 *) Add Delta CRL to the extension code.
5183 *) Various fixes to s3_pkt.c so alerts are sent properly.
5184 [David Holmes <d.holmes@f5.com>]
5186 *) Reduce the chances of duplicate issuer name and serial numbers (in
5187 violation of RFC3280) using the OpenSSL certificate creation utilities.
5188 This is done by creating a random 64 bit value for the initial serial
5189 number when a serial number file is created or when a self signed
5190 certificate is created using 'openssl req -x509'. The initial serial
5191 number file is created using 'openssl x509 -next_serial' in CA.pl
5192 rather than being initialized to 1.
5195 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
5197 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5198 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5199 [Joe Orton, Steve Henson]
5201 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
5203 [Joe Orton, Steve Henson]
5205 *) Make it possible to have multiple active certificates with the same
5206 subject in the CA index file. This is done only if the keyword
5207 'unique_subject' is set to 'no' in the main CA section (default
5208 if 'CA_default') of the configuration file. The value is saved
5209 with the database itself in a separate index attribute file,
5210 named like the index file with '.attr' appended to the name.
5213 *) X509 verify fixes. Disable broken certificate workarounds when
5214 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
5215 keyUsage extension present. Don't accept CRLs with unhandled critical
5216 extensions: since verify currently doesn't process CRL extensions this
5217 rejects a CRL with *any* critical extensions. Add new verify error codes
5221 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
5222 A clarification of RFC2560 will require the use of OCTET STRINGs and
5223 some implementations cannot handle the current raw format. Since OpenSSL
5224 copies and compares OCSP nonces as opaque blobs without any attempt at
5225 parsing them this should not create any compatibility issues.
5228 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
5229 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
5230 this HMAC (and other) operations are several times slower than OpenSSL
5234 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
5235 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
5237 *) Use the correct content when signing type "other".
5240 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
5242 *) Fix various bugs revealed by running the NISCC test suite:
5244 Stop out of bounds reads in the ASN1 code when presented with
5245 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5247 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
5249 If verify callback ignores invalid public key errors don't try to check
5250 certificate signature with the NULL public key.
5254 *) New -ignore_err option in ocsp application to stop the server
5255 exiting on the first error in a request.
5258 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5259 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5263 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5264 extra data after the compression methods not only for TLS 1.0
5265 but also for SSL 3.0 (as required by the specification).
5266 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5268 *) Change X509_certificate_type() to mark the key as exported/exportable
5269 when it's 512 *bits* long, not 512 bytes.
5272 *) Change AES_cbc_encrypt() so it outputs exact multiple of
5273 blocks during encryption.
5276 *) Various fixes to base64 BIO and non blocking I/O. On write
5277 flushes were not handled properly if the BIO retried. On read
5278 data was not being buffered properly and had various logic bugs.
5279 This also affects blocking I/O when the data being decoded is a
5283 *) Various S/MIME bugfixes and compatibility changes:
5284 output correct application/pkcs7 MIME type if
5285 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
5286 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
5287 of files as .eml work). Correctly handle very long lines in MIME
5291 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
5293 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5294 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5295 a protocol version number mismatch like a decryption error
5296 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5299 *) Turn on RSA blinding by default in the default implementation
5300 to avoid a timing attack. Applications that don't want it can call
5301 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5302 They would be ill-advised to do so in most cases.
5303 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5305 *) Change RSA blinding code so that it works when the PRNG is not
5306 seeded (in this case, the secret RSA exponent is abused as
5307 an unpredictable seed -- if it is not unpredictable, there
5308 is no point in blinding anyway). Make RSA blinding thread-safe
5309 by remembering the creator's thread ID in rsa->blinding and
5310 having all other threads use local one-time blinding factors
5311 (this requires more computation than sharing rsa->blinding, but
5312 avoids excessive locking; and if an RSA object is not shared
5313 between threads, blinding will still be very fast).
5316 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
5317 ENGINE as defaults for all supported algorithms irrespective of
5318 the 'flags' parameter. 'flags' is now honoured, so applications
5319 should make sure they are passing it correctly.
5322 *) Target "mingw" now allows native Windows code to be generated in
5323 the Cygwin environment as well as with the MinGW compiler.
5326 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
5328 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5329 via timing by performing a MAC computation even if incorrect
5330 block cipher padding has been found. This is a countermeasure
5331 against active attacks where the attacker has to distinguish
5332 between bad padding and a MAC verification error. (CVE-2003-0078)
5334 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5335 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5336 Martin Vuagnoux (EPFL, Ilion)]
5338 *) Make the no-err option work as intended. The intention with no-err
5339 is not to have the whole error stack handling routines removed from
5340 libcrypto, it's only intended to remove all the function name and
5341 reason texts, thereby removing some of the footprint that may not
5342 be interesting if those errors aren't displayed anyway.
5344 NOTE: it's still possible for any application or module to have it's
5345 own set of error texts inserted. The routines are there, just not
5346 used by default when no-err is given.
5349 *) Add support for FreeBSD on IA64.
5350 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
5352 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
5353 Kerberos function mit_des_cbc_cksum(). Before this change,
5354 the value returned by DES_cbc_cksum() was like the one from
5355 mit_des_cbc_cksum(), except the bytes were swapped.
5356 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
5358 *) Allow an application to disable the automatic SSL chain building.
5359 Before this a rather primitive chain build was always performed in
5360 ssl3_output_cert_chain(): an application had no way to send the
5361 correct chain if the automatic operation produced an incorrect result.
5363 Now the chain builder is disabled if either:
5365 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
5367 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
5369 The reasoning behind this is that an application would not want the
5370 auto chain building to take place if extra chain certificates are
5371 present and it might also want a means of sending no additional
5372 certificates (for example the chain has two certificates and the
5376 *) Add the possibility to build without the ENGINE framework.
5377 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
5379 *) Under Win32 gmtime() can return NULL: check return value in
5380 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
5383 *) DSA routines: under certain error conditions uninitialized BN objects
5384 could be freed. Solution: make sure initialization is performed early
5385 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
5386 Nils Larsch <nla@trustcenter.de> via PR#459)
5389 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
5390 checked on reconnect on the client side, therefore session resumption
5391 could still fail with a "ssl session id is different" error. This
5392 behaviour is masked when SSL_OP_ALL is used due to
5393 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
5394 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
5395 followup to PR #377.
5398 *) IA-32 assembler support enhancements: unified ELF targets, support
5399 for SCO/Caldera platforms, fix for Cygwin shared build.
5402 *) Add support for FreeBSD on sparc64. As a consequence, support for
5403 FreeBSD on non-x86 processors is separate from x86 processors on
5404 the config script, much like the NetBSD support.
5405 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
5407 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
5409 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
5412 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
5413 code (06) was taken as the first octet of the session ID and the last
5414 octet was ignored consequently. As a result SSLv2 client side session
5415 caching could not have worked due to the session ID mismatch between
5417 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
5421 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
5422 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
5426 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
5427 seems that in spite of existing for more than a year, many application
5428 author have done nothing to provide the necessary callbacks, which
5429 means that this particular engine will not work properly anywhere.
5430 This is a very unfortunate situation which forces us, in the name
5431 of usability, to give the hw_ncipher.c a static lock, which is part
5433 NOTE: This is for the 0.9.7 series ONLY. This hack will never
5434 appear in 0.9.8 or later. We EXPECT application authors to have
5435 dealt properly with this when 0.9.8 is released (unless we actually
5436 make such changes in the libcrypto locking code that changes will
5437 have to be made anyway).
5440 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
5441 octets have been read, EOF or an error occurs. Without this change
5442 some truncated ASN1 structures will not produce an error.
5445 *) Disable Heimdal support, since it hasn't been fully implemented.
5446 Still give the possibility to force the use of Heimdal, but with
5447 warnings and a request that patches get sent to openssl-dev.
5450 *) Add the VC-CE target, introduce the WINCE sysname, and add
5451 INSTALL.WCE and appropriate conditionals to make it build.
5452 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
5454 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
5455 cygssl-x.y.z.dll, where x, y and z are the major, minor and
5456 edit numbers of the version.
5457 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5459 *) Introduce safe string copy and catenation functions
5460 (BUF_strlcpy() and BUF_strlcat()).
5461 [Ben Laurie (CHATS) and Richard Levitte]
5463 *) Avoid using fixed-size buffers for one-line DNs.
5464 [Ben Laurie (CHATS)]
5466 *) Add BUF_MEM_grow_clean() to avoid information leakage when
5467 resizing buffers containing secrets, and use where appropriate.
5468 [Ben Laurie (CHATS)]
5470 *) Avoid using fixed size buffers for configuration file location.
5471 [Ben Laurie (CHATS)]
5473 *) Avoid filename truncation for various CA files.
5474 [Ben Laurie (CHATS)]
5476 *) Use sizeof in preference to magic numbers.
5477 [Ben Laurie (CHATS)]
5479 *) Avoid filename truncation in cert requests.
5480 [Ben Laurie (CHATS)]
5482 *) Add assertions to check for (supposedly impossible) buffer
5484 [Ben Laurie (CHATS)]
5486 *) Don't cache truncated DNS entries in the local cache (this could
5487 potentially lead to a spoofing attack).
5488 [Ben Laurie (CHATS)]
5490 *) Fix various buffers to be large enough for hex/decimal
5491 representations in a platform independent manner.
5492 [Ben Laurie (CHATS)]
5494 *) Add CRYPTO_realloc_clean() to avoid information leakage when
5495 resizing buffers containing secrets, and use where appropriate.
5496 [Ben Laurie (CHATS)]
5498 *) Add BIO_indent() to avoid much slightly worrying code to do
5500 [Ben Laurie (CHATS)]
5502 *) Convert sprintf()/BIO_puts() to BIO_printf().
5503 [Ben Laurie (CHATS)]
5505 *) buffer_gets() could terminate with the buffer only half
5507 [Ben Laurie (CHATS)]
5509 *) Add assertions to prevent user-supplied crypto functions from
5510 overflowing internal buffers by having large block sizes, etc.
5511 [Ben Laurie (CHATS)]
5513 *) New OPENSSL_assert() macro (similar to assert(), but enabled
5515 [Ben Laurie (CHATS)]
5517 *) Eliminate unused copy of key in RC4.
5518 [Ben Laurie (CHATS)]
5520 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
5521 [Ben Laurie (CHATS)]
5523 *) Fix off-by-one error in EGD path.
5524 [Ben Laurie (CHATS)]
5526 *) If RANDFILE path is too long, ignore instead of truncating.
5527 [Ben Laurie (CHATS)]
5529 *) Eliminate unused and incorrectly sized X.509 structure
5531 [Ben Laurie (CHATS)]
5533 *) Eliminate unused and dangerous function knumber().
5534 [Ben Laurie (CHATS)]
5536 *) Eliminate unused and dangerous structure, KSSL_ERR.
5537 [Ben Laurie (CHATS)]
5539 *) Protect against overlong session ID context length in an encoded
5540 session object. Since these are local, this does not appear to be
5542 [Ben Laurie (CHATS)]
5544 *) Change from security patch (see 0.9.6e below) that did not affect
5545 the 0.9.6 release series:
5547 Remote buffer overflow in SSL3 protocol - an attacker could
5548 supply an oversized master key in Kerberos-enabled versions.
5550 [Ben Laurie (CHATS)]
5552 *) Change the SSL kerb5 codes to match RFC 2712.
5555 *) Make -nameopt work fully for req and add -reqopt switch.
5556 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
5558 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
5559 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
5561 *) Make sure tests can be performed even if the corresponding algorithms
5562 have been removed entirely. This was also the last step to make
5563 OpenSSL compilable with DJGPP under all reasonable conditions.
5564 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
5566 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
5567 to allow version independent disabling of normally unselected ciphers,
5568 which may be activated as a side-effect of selecting a single cipher.
5570 (E.g., cipher list string "RSA" enables ciphersuites that are left
5571 out of "ALL" because they do not provide symmetric encryption.
5572 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
5573 [Lutz Jaenicke, Bodo Moeller]
5575 *) Add appropriate support for separate platform-dependent build
5576 directories. The recommended way to make a platform-dependent
5577 build directory is the following (tested on Linux), maybe with
5580 # Place yourself outside of the OpenSSL source tree. In
5581 # this example, the environment variable OPENSSL_SOURCE
5582 # is assumed to contain the absolute OpenSSL source directory.
5583 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
5584 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
5585 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
5586 mkdir -p `dirname $F`
5587 ln -s $OPENSSL_SOURCE/$F $F
5590 To be absolutely sure not to disturb the source tree, a "make clean"
5591 is a good thing. If it isn't successful, don't worry about it,
5592 it probably means the source directory is very clean.
5595 *) Make sure any ENGINE control commands make local copies of string
5596 pointers passed to them whenever necessary. Otherwise it is possible
5597 the caller may have overwritten (or deallocated) the original string
5598 data when a later ENGINE operation tries to use the stored values.
5599 [Götz Babin-Ebell <babinebell@trustcenter.de>]
5601 *) Improve diagnostics in file reading and command-line digests.
5602 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
5604 *) Add AES modes CFB and OFB to the object database. Correct an
5605 error in AES-CFB decryption.
5608 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
5609 allows existing EVP_CIPHER_CTX structures to be reused after
5610 calling EVP_*Final(). This behaviour is used by encryption
5611 BIOs and some applications. This has the side effect that
5612 applications must explicitly clean up cipher contexts with
5613 EVP_CIPHER_CTX_cleanup() or they will leak memory.
5616 *) Check the values of dna and dnb in bn_mul_recursive before calling
5617 bn_mul_comba (a non zero value means the a or b arrays do not contain
5618 n2 elements) and fallback to bn_mul_normal if either is not zero.
5621 *) Fix escaping of non-ASCII characters when using the -subj option
5622 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
5625 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
5626 form for "surname", serialNumber has no short form.
5627 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
5628 therefore remove "mail" short name for "internet 7".
5629 The OID for unique identifiers in X509 certificates is
5630 x500UniqueIdentifier, not uniqueIdentifier.
5631 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
5634 *) Add an "init" command to the ENGINE config module and auto initialize
5635 ENGINEs. Without any "init" command the ENGINE will be initialized
5636 after all ctrl commands have been executed on it. If init=1 the
5637 ENGINE is initailized at that point (ctrls before that point are run
5638 on the uninitialized ENGINE and after on the initialized one). If
5639 init=0 then the ENGINE will not be iniatialized at all.
5642 *) Fix the 'app_verify_callback' interface so that the user-defined
5643 argument is actually passed to the callback: In the
5644 SSL_CTX_set_cert_verify_callback() prototype, the callback
5645 declaration has been changed from
5648 int (*cb)(X509_STORE_CTX *,void *);
5649 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
5650 i=s->ctx->app_verify_callback(&ctx)
5651 has been changed into
5652 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
5654 To update applications using SSL_CTX_set_cert_verify_callback(),
5655 a dummy argument can be added to their callback functions.
5656 [D. K. Smetters <smetters@parc.xerox.com>]
5658 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
5659 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
5661 *) Add and OPENSSL_LOAD_CONF define which will cause
5662 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
5663 This allows older applications to transparently support certain
5664 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
5665 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
5666 load the config file and OPENSSL_add_all_algorithms_conf() which will
5667 always load it have also been added.
5670 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
5671 Adjust NIDs and EVP layer.
5672 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
5674 *) Config modules support in openssl utility.
5676 Most commands now load modules from the config file,
5677 though in a few (such as version) this isn't done
5678 because it couldn't be used for anything.
5680 In the case of ca and req the config file used is
5681 the same as the utility itself: that is the -config
5682 command line option can be used to specify an
5686 *) Move default behaviour from OPENSSL_config(). If appname is NULL
5687 use "openssl_conf" if filename is NULL use default openssl config file.
5690 *) Add an argument to OPENSSL_config() to allow the use of an alternative
5691 config section name. Add a new flag to tolerate a missing config file
5692 and move code to CONF_modules_load_file().
5695 *) Support for crypto accelerator cards from Accelerated Encryption
5696 Processing, www.aep.ie. (Use engine 'aep')
5697 The support was copied from 0.9.6c [engine] and adapted/corrected
5698 to work with the new engine framework.
5699 [AEP Inc. and Richard Levitte]
5701 *) Support for SureWare crypto accelerator cards from Baltimore
5702 Technologies. (Use engine 'sureware')
5703 The support was copied from 0.9.6c [engine] and adapted
5704 to work with the new engine framework.
5707 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
5708 make the newer ENGINE framework commands for the CHIL engine work.
5709 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
5711 *) Make it possible to produce shared libraries on ReliantUNIX.
5712 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
5714 *) Add the configuration target debug-linux-ppro.
5715 Make 'openssl rsa' use the general key loading routines
5716 implemented in apps.c, and make those routines able to
5717 handle the key format FORMAT_NETSCAPE and the variant
5719 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5721 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5722 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5724 *) Add -keyform to rsautl, and document -engine.
5725 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
5727 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
5728 BIO_R_NO_SUCH_FILE error code rather than the generic
5729 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
5732 *) Add new functions
5734 ERR_peek_last_error_line
5735 ERR_peek_last_error_line_data.
5736 These are similar to
5739 ERR_peek_error_line_data,
5740 but report on the latest error recorded rather than the first one
5741 still in the error queue.
5742 [Ben Laurie, Bodo Moeller]
5744 *) default_algorithms option in ENGINE config module. This allows things
5746 default_algorithms = ALL
5747 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
5750 *) Preliminary ENGINE config module.
5753 *) New experimental application configuration code.
5756 *) Change the AES code to follow the same name structure as all other
5757 symmetric ciphers, and behave the same way. Move everything to
5758 the directory crypto/aes, thereby obsoleting crypto/rijndael.
5759 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
5761 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
5762 [Ben Laurie and Theo de Raadt]
5764 *) Add option to output public keys in req command.
5765 [Massimiliano Pala madwolf@openca.org]
5767 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
5768 (up to about 10% better than before for P-192 and P-224).
5771 *) New functions/macros
5773 SSL_CTX_set_msg_callback(ctx, cb)
5774 SSL_CTX_set_msg_callback_arg(ctx, arg)
5775 SSL_set_msg_callback(ssl, cb)
5776 SSL_set_msg_callback_arg(ssl, arg)
5778 to request calling a callback function
5780 void cb(int write_p, int version, int content_type,
5781 const void *buf, size_t len, SSL *ssl, void *arg)
5783 whenever a protocol message has been completely received
5784 (write_p == 0) or sent (write_p == 1). Here 'version' is the
5785 protocol version according to which the SSL library interprets
5786 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
5787 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
5788 the content type as defined in the SSL 3.0/TLS 1.0 protocol
5789 specification (change_cipher_spec(20), alert(21), handshake(22)).
5790 'buf' and 'len' point to the actual message, 'ssl' to the
5791 SSL object, and 'arg' is the application-defined value set by
5792 SSL[_CTX]_set_msg_callback_arg().
5794 'openssl s_client' and 'openssl s_server' have new '-msg' options
5795 to enable a callback that displays all protocol messages.
5798 *) Change the shared library support so shared libraries are built as
5799 soon as the corresponding static library is finished, and thereby get
5800 openssl and the test programs linked against the shared library.
5801 This still only happens when the keyword "shard" has been given to
5802 the configuration scripts.
5804 NOTE: shared library support is still an experimental thing, and
5805 backward binary compatibility is still not guaranteed.
5806 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
5808 *) Add support for Subject Information Access extension.
5809 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
5811 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
5812 additional bytes when new memory had to be allocated, not just
5813 when reusing an existing buffer.
5816 *) New command line and configuration option 'utf8' for the req command.
5817 This allows field values to be specified as UTF8 strings.
5820 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
5821 runs for the former and machine-readable output for the latter.
5824 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
5825 of the e-mail address in the DN (i.e., it will go into a certificate
5826 extension only). The new configuration file option 'email_in_dn = no'
5827 has the same effect.
5828 [Massimiliano Pala madwolf@openca.org]
5830 *) Change all functions with names starting with des_ to be starting
5831 with DES_ instead. Add wrappers that are compatible with libdes,
5832 but are named _ossl_old_des_*. Finally, add macros that map the
5833 des_* symbols to the corresponding _ossl_old_des_* if libdes
5834 compatibility is desired. If OpenSSL 0.9.6c compatibility is
5835 desired, the des_* symbols will be mapped to DES_*, with one
5838 Since we provide two compatibility mappings, the user needs to
5839 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
5840 compatibility is desired. The default (i.e., when that macro
5841 isn't defined) is OpenSSL 0.9.6c compatibility.
5843 There are also macros that enable and disable the support of old
5844 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
5845 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
5846 are defined, the default will apply: to support the old des routines.
5848 In either case, one must include openssl/des.h to get the correct
5849 definitions. Do not try to just include openssl/des_old.h, that
5852 NOTE: This is a major break of an old API into a new one. Software
5853 authors are encouraged to switch to the DES_ style functions. Some
5854 time in the future, des_old.h and the libdes compatibility functions
5855 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
5856 default), and then completely removed.
5859 *) Test for certificates which contain unsupported critical extensions.
5860 If such a certificate is found during a verify operation it is
5861 rejected by default: this behaviour can be overridden by either
5862 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
5863 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
5864 X509_supported_extension() has also been added which returns 1 if a
5865 particular extension is supported.
5868 *) Modify the behaviour of EVP cipher functions in similar way to digests
5869 to retain compatibility with existing code.
5872 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
5873 compatibility with existing code. In particular the 'ctx' parameter does
5874 not have to be to be initialized before the call to EVP_DigestInit() and
5875 it is tidied up after a call to EVP_DigestFinal(). New function
5876 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
5877 EVP_MD_CTX_copy() changed to not require the destination to be
5878 initialized valid and new function EVP_MD_CTX_copy_ex() added which
5879 requires the destination to be valid.
5881 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
5882 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
5885 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
5886 so that complete 'Handshake' protocol structures are kept in memory
5887 instead of overwriting 'msg_type' and 'length' with 'body' data.
5890 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
5891 [Massimo Santin via Richard Levitte]
5893 *) Major restructuring to the underlying ENGINE code. This includes
5894 reduction of linker bloat, separation of pure "ENGINE" manipulation
5895 (initialisation, etc) from functionality dealing with implementations
5896 of specific crypto iterfaces. This change also introduces integrated
5897 support for symmetric ciphers and digest implementations - so ENGINEs
5898 can now accelerate these by providing EVP_CIPHER and EVP_MD
5899 implementations of their own. This is detailed in crypto/engine/README
5900 as it couldn't be adequately described here. However, there are a few
5901 API changes worth noting - some RSA, DSA, DH, and RAND functions that
5902 were changed in the original introduction of ENGINE code have now
5903 reverted back - the hooking from this code to ENGINE is now a good
5904 deal more passive and at run-time, operations deal directly with
5905 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
5906 dereferencing through an ENGINE pointer any more. Also, the ENGINE
5907 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
5908 they were not being used by the framework as there is no concept of a
5909 BIGNUM_METHOD and they could not be generalised to the new
5910 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
5911 ENGINE_cpy() has been removed as it cannot be consistently defined in
5915 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
5918 *) Change mkdef.pl to sort symbols that get the same entry number,
5919 and make sure the automatically generated functions ERR_load_*
5920 become part of libeay.num as well.
5923 *) New function SSL_renegotiate_pending(). This returns true once
5924 renegotiation has been requested (either SSL_renegotiate() call
5925 or HelloRequest/ClientHello received from the peer) and becomes
5926 false once a handshake has been completed.
5927 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
5928 sends a HelloRequest, but does not ensure that a handshake takes
5929 place. SSL_renegotiate_pending() is useful for checking if the
5930 client has followed the request.)
5933 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
5934 By default, clients may request session resumption even during
5935 renegotiation (if session ID contexts permit); with this option,
5936 session resumption is possible only in the first handshake.
5938 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
5939 more bits available for options that should not be part of
5940 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
5943 *) Add some demos for certificate and certificate request creation.
5946 *) Make maximum certificate chain size accepted from the peer application
5947 settable (SSL*_get/set_max_cert_list()), as proposed by
5948 "Douglas E. Engert" <deengert@anl.gov>.
5951 *) Add support for shared libraries for Unixware-7
5952 (Boyd Lynn Gerber <gerberb@zenez.com>).
5955 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
5956 be done prior to destruction. Use this to unload error strings from
5957 ENGINEs that load their own error strings. NB: This adds two new API
5958 functions to "get" and "set" this destroy handler in an ENGINE.
5961 *) Alter all existing ENGINE implementations (except "openssl" and
5962 "openbsd") to dynamically instantiate their own error strings. This
5963 makes them more flexible to be built both as statically-linked ENGINEs
5964 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
5965 Also, add stub code to each that makes building them as self-contained
5966 shared-libraries easier (see README.ENGINE).
5969 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
5970 implementations into applications that are completely implemented in
5971 self-contained shared-libraries. The "dynamic" ENGINE exposes control
5972 commands that can be used to configure what shared-library to load and
5973 to control aspects of the way it is handled. Also, made an update to
5974 the README.ENGINE file that brings its information up-to-date and
5975 provides some information and instructions on the "dynamic" ENGINE
5976 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
5979 *) Make it possible to unload ranges of ERR strings with a new
5980 "ERR_unload_strings" function.
5983 *) Add a copy() function to EVP_MD.
5986 *) Make EVP_MD routines take a context pointer instead of just the
5987 md_data void pointer.
5990 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
5991 that the digest can only process a single chunk of data
5992 (typically because it is provided by a piece of
5993 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
5994 is only going to provide a single chunk of data, and hence the
5995 framework needn't accumulate the data for oneshot drivers.
5998 *) As with "ERR", make it possible to replace the underlying "ex_data"
5999 functions. This change also alters the storage and management of global
6000 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
6001 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
6002 index counters. The API functions that use this state have been changed
6003 to take a "class_index" rather than pointers to the class's local STACK
6004 and counter, and there is now an API function to dynamically create new
6005 classes. This centralisation allows us to (a) plug a lot of the
6006 thread-safety problems that existed, and (b) makes it possible to clean
6007 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
6008 such data would previously have always leaked in application code and
6009 workarounds were in place to make the memory debugging turn a blind eye
6010 to it. Application code that doesn't use this new function will still
6011 leak as before, but their memory debugging output will announce it now
6012 rather than letting it slide.
6014 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
6015 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
6016 has a return value to indicate success or failure.
6019 *) Make it possible to replace the underlying "ERR" functions such that the
6020 global state (2 LHASH tables and 2 locks) is only used by the "default"
6021 implementation. This change also adds two functions to "get" and "set"
6022 the implementation prior to it being automatically set the first time
6023 any other ERR function takes place. Ie. an application can call "get",
6024 pass the return value to a module it has just loaded, and that module
6025 can call its own "set" function using that value. This means the
6026 module's "ERR" operations will use (and modify) the error state in the
6027 application and not in its own statically linked copy of OpenSSL code.
6030 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
6031 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
6032 the operation, and provides a more encapsulated way for external code
6033 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
6034 to use these functions rather than manually incrementing the counts.
6036 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
6039 *) Add EVP test program.
6042 *) Add symmetric cipher support to ENGINE. Expect the API to change!
6045 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
6046 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
6047 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
6048 These allow a CRL to be built without having to access X509_CRL fields
6049 directly. Modify 'ca' application to use new functions.
6052 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
6053 bug workarounds. Rollback attack detection is a security feature.
6054 The problem will only arise on OpenSSL servers when TLSv1 is not
6055 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
6056 Software authors not wanting to support TLSv1 will have special reasons
6057 for their choice and can explicitly enable this option.
6058 [Bodo Moeller, Lutz Jaenicke]
6060 *) Rationalise EVP so it can be extended: don't include a union of
6061 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
6062 (similar to those existing for EVP_CIPHER_CTX).
6067 EVP_MD_CTX_init(&md); /* new function call */
6068 EVP_DigestInit(&md, EVP_sha1());
6069 EVP_DigestUpdate(&md, in, len);
6070 EVP_DigestFinal(&md, out, NULL);
6071 EVP_MD_CTX_cleanup(&md); /* new function call */
6075 *) Make DES key schedule conform to the usual scheme, as well as
6076 correcting its structure. This means that calls to DES functions
6077 now have to pass a pointer to a des_key_schedule instead of a
6078 plain des_key_schedule (which was actually always a pointer
6081 des_key_schedule ks;
6083 des_set_key_checked(..., &ks);
6084 des_ncbc_encrypt(..., &ks, ...);
6086 (Note that a later change renames 'des_...' into 'DES_...'.)
6089 *) Initial reduction of linker bloat: the use of some functions, such as
6090 PEM causes large amounts of unused functions to be linked in due to
6091 poor organisation. For example pem_all.c contains every PEM function
6092 which has a knock on effect of linking in large amounts of (unused)
6093 ASN1 code. Grouping together similar functions and splitting unrelated
6094 functions prevents this.
6097 *) Cleanup of EVP macros.
6100 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
6101 correct _ecb suffix.
6104 *) Add initial OCSP responder support to ocsp application. The
6105 revocation information is handled using the text based index
6106 use by the ca application. The responder can either handle
6107 requests generated internally, supplied in files (for example
6108 via a CGI script) or using an internal minimal server.
6111 *) Add configuration choices to get zlib compression for TLS.
6114 *) Changes to Kerberos SSL for RFC 2712 compliance:
6115 1. Implemented real KerberosWrapper, instead of just using
6116 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
6117 2. Implemented optional authenticator field of KerberosWrapper.
6119 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
6120 and authenticator structs; see crypto/krb5/.
6122 Generalized Kerberos calls to support multiple Kerberos libraries.
6123 [Vern Staats <staatsvr@asc.hpc.mil>,
6124 Jeffrey Altman <jaltman@columbia.edu>
6125 via Richard Levitte]
6127 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
6128 already does with RSA. testdsa.h now has 'priv_key/pub_key'
6129 values for each of the key sizes rather than having just
6130 parameters (and 'speed' generating keys each time).
6133 *) Speed up EVP routines.
6136 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
6137 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
6138 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
6139 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
6141 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
6142 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
6143 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
6146 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
6148 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
6151 *) Added the OS2-EMX target.
6152 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
6154 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
6155 to support NCONF routines in extension code. New function CONF_set_nconf()
6156 to allow functions which take an NCONF to also handle the old LHASH
6157 structure: this means that the old CONF compatible routines can be
6158 retained (in particular wrt extensions) without having to duplicate the
6159 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
6162 *) Enhance the general user interface with mechanisms for inner control
6163 and with possibilities to have yes/no kind of prompts.
6166 *) Change all calls to low level digest routines in the library and
6167 applications to use EVP. Add missing calls to HMAC_cleanup() and
6168 don't assume HMAC_CTX can be copied using memcpy().
6169 [Verdon Walker <VWalker@novell.com>, Steve Henson]
6171 *) Add the possibility to control engines through control names but with
6172 arbitrary arguments instead of just a string.
6173 Change the key loaders to take a UI_METHOD instead of a callback
6174 function pointer. NOTE: this breaks binary compatibility with earlier
6175 versions of OpenSSL [engine].
6176 Adapt the nCipher code for these new conditions and add a card insertion
6180 *) Enhance the general user interface with mechanisms to better support
6181 dialog box interfaces, application-defined prompts, the possibility
6182 to use defaults (for example default passwords from somewhere else)
6183 and interrupts/cancellations.
6186 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
6187 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
6190 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
6191 tidy up some unnecessarily weird code in 'sk_new()').
6192 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
6194 *) Change the key loading routines for ENGINEs to use the same kind
6195 callback (pem_password_cb) as all other routines that need this
6199 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
6200 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
6201 than this minimum value is recommended.
6204 *) New random seeder for OpenVMS, using the system process statistics
6205 that are easily reachable.
6208 *) Windows apparently can't transparently handle global
6209 variables defined in DLLs. Initialisations such as:
6211 const ASN1_ITEM *it = &ASN1_INTEGER_it;
6213 wont compile. This is used by the any applications that need to
6214 declare their own ASN1 modules. This was fixed by adding the option
6215 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
6216 needed for static libraries under Win32.
6219 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
6220 setting of purpose and trust fields. New X509_STORE trust and
6221 purpose functions and tidy up setting in other SSL functions.
6224 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
6225 structure. These are inherited by X509_STORE_CTX when it is
6226 initialised. This allows various defaults to be set in the
6227 X509_STORE structure (such as flags for CRL checking and custom
6228 purpose or trust settings) for functions which only use X509_STORE_CTX
6229 internally such as S/MIME.
6231 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
6232 trust settings if they are not set in X509_STORE. This allows X509_STORE
6233 purposes and trust (in S/MIME for example) to override any set by default.
6235 Add command line options for CRL checking to smime, s_client and s_server
6239 *) Initial CRL based revocation checking. If the CRL checking flag(s)
6240 are set then the CRL is looked up in the X509_STORE structure and
6241 its validity and signature checked, then if the certificate is found
6242 in the CRL the verify fails with a revoked error.
6244 Various new CRL related callbacks added to X509_STORE_CTX structure.
6246 Command line options added to 'verify' application to support this.
6248 This needs some additional work, such as being able to handle multiple
6249 CRLs with different times, extension based lookup (rather than just
6250 by subject name) and ultimately more complete V2 CRL extension
6254 *) Add a general user interface API (crypto/ui/). This is designed
6255 to replace things like des_read_password and friends (backward
6256 compatibility functions using this new API are provided).
6257 The purpose is to remove prompting functions from the DES code
6258 section as well as provide for prompting through dialog boxes in
6259 a window system and the like.
6262 *) Add "ex_data" support to ENGINE so implementations can add state at a
6263 per-structure level rather than having to store it globally.
6266 *) Make it possible for ENGINE structures to be copied when retrieved by
6267 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
6268 This causes the "original" ENGINE structure to act like a template,
6269 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
6270 operational state can be localised to each ENGINE structure, despite the
6271 fact they all share the same "methods". New ENGINE structures returned in
6272 this case have no functional references and the return value is the single
6273 structural reference. This matches the single structural reference returned
6274 by ENGINE_by_id() normally, when it is incremented on the pre-existing
6278 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
6279 needs to match any other type at all we need to manually clear the
6283 *) Changes to the "openssl engine" utility to include;
6284 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
6285 about an ENGINE's available control commands.
6286 - executing control commands from command line arguments using the
6287 '-pre' and '-post' switches. '-post' is only used if '-t' is
6288 specified and the ENGINE is successfully initialised. The syntax for
6289 the individual commands are colon-separated, for example;
6290 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
6293 *) New dynamic control command support for ENGINEs. ENGINEs can now
6294 declare their own commands (numbers), names (strings), descriptions,
6295 and input types for run-time discovery by calling applications. A
6296 subset of these commands are implicitly classed as "executable"
6297 depending on their input type, and only these can be invoked through
6298 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
6299 can be based on user input, config files, etc). The distinction is
6300 that "executable" commands cannot return anything other than a boolean
6301 result and can only support numeric or string input, whereas some
6302 discoverable commands may only be for direct use through
6303 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
6304 pointers, or other custom uses. The "executable" commands are to
6305 support parameterisations of ENGINE behaviour that can be
6306 unambiguously defined by ENGINEs and used consistently across any
6307 OpenSSL-based application. Commands have been added to all the
6308 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
6309 control over shared-library paths without source code alterations.
6312 *) Changed all ENGINE implementations to dynamically allocate their
6313 ENGINEs rather than declaring them statically. Apart from this being
6314 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
6315 this also allows the implementations to compile without using the
6316 internal engine_int.h header.
6319 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
6320 'const' value. Any code that should be able to modify a RAND_METHOD
6321 should already have non-const pointers to it (ie. they should only
6322 modify their own ones).
6325 *) Made a variety of little tweaks to the ENGINE code.
6326 - "atalla" and "ubsec" string definitions were moved from header files
6327 to C code. "nuron" string definitions were placed in variables
6328 rather than hard-coded - allowing parameterisation of these values
6329 later on via ctrl() commands.
6330 - Removed unused "#if 0"'d code.
6331 - Fixed engine list iteration code so it uses ENGINE_free() to release
6332 structural references.
6333 - Constified the RAND_METHOD element of ENGINE structures.
6334 - Constified various get/set functions as appropriate and added
6335 missing functions (including a catch-all ENGINE_cpy that duplicates
6336 all ENGINE values onto a new ENGINE except reference counts/state).
6337 - Removed NULL parameter checks in get/set functions. Setting a method
6338 or function to NULL is a way of cancelling out a previously set
6339 value. Passing a NULL ENGINE parameter is just plain stupid anyway
6340 and doesn't justify the extra error symbols and code.
6341 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
6342 flags from engine_int.h to engine.h.
6343 - Changed prototypes for ENGINE handler functions (init(), finish(),
6344 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
6347 *) Implement binary inversion algorithm for BN_mod_inverse in addition
6348 to the algorithm using long division. The binary algorithm can be
6349 used only if the modulus is odd. On 32-bit systems, it is faster
6350 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
6351 roughly 5-15% for 256-bit moduli), so we use it only for moduli
6352 up to 450 bits. In 64-bit environments, the binary algorithm
6353 appears to be advantageous for much longer moduli; here we use it
6354 for moduli up to 2048 bits.
6357 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
6358 could not support the combine flag in choice fields.
6361 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
6362 extensions from a certificate request to the certificate.
6365 *) Allow multiple 'certopt' and 'nameopt' options to be separated
6366 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
6367 file: this allows the display of the certificate about to be
6368 signed to be customised, to allow certain fields to be included
6369 or excluded and extension details. The old system didn't display
6370 multicharacter strings properly, omitted fields not in the policy
6371 and couldn't display additional details such as extensions.
6374 *) Function EC_POINTs_mul for multiple scalar multiplication
6375 of an arbitrary number of elliptic curve points
6376 \sum scalars[i]*points[i],
6377 optionally including the generator defined for the EC_GROUP:
6378 scalar*generator + \sum scalars[i]*points[i].
6380 EC_POINT_mul is a simple wrapper function for the typical case
6381 that the point list has just one item (besides the optional
6385 *) First EC_METHODs for curves over GF(p):
6387 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
6388 operations and provides various method functions that can also
6389 operate with faster implementations of modular arithmetic.
6391 EC_GFp_mont_method() reuses most functions that are part of
6392 EC_GFp_simple_method, but uses Montgomery arithmetic.
6394 [Bodo Moeller; point addition and point doubling
6395 implementation directly derived from source code provided by
6396 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
6398 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
6399 crypto/ec/ec_lib.c):
6401 Curves are EC_GROUP objects (with an optional group generator)
6402 based on EC_METHODs that are built into the library.
6404 Points are EC_POINT objects based on EC_GROUP objects.
6406 Most of the framework would be able to handle curves over arbitrary
6407 finite fields, but as there are no obvious types for fields other
6408 than GF(p), some functions are limited to that for now.
6411 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
6412 that the file contains a complete HTTP response.
6415 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
6416 change the def and num file printf format specifier from "%-40sXXX"
6417 to "%-39s XXX". The latter will always guarantee a space after the
6418 field while the former will cause them to run together if the field
6419 is 40 of more characters long.
6422 *) Constify the cipher and digest 'method' functions and structures
6423 and modify related functions to take constant EVP_MD and EVP_CIPHER
6427 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
6428 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
6431 *) Modify EVP_Digest*() routines so they now return values. Although the
6432 internal software routines can never fail additional hardware versions
6436 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
6438 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
6439 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
6442 ERR_R_NESTED_ASN1_ERROR
6444 ERR_R_MISSING_ASN1_EOS
6445 were 4 .. 9, conflicting with
6446 ERR_LIB_RSA (= ERR_R_RSA_LIB)
6448 ERR_LIB_PEM (= ERR_R_PEM_LIB).
6449 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
6451 Add new error code 'ERR_R_INTERNAL_ERROR'.
6454 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
6458 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
6459 sets the subject name for a new request or supersedes the
6460 subject name in a given request. Formats that can be parsed are
6461 'CN=Some Name, OU=myOU, C=IT'
6463 'CN=Some Name/OU=myOU/C=IT'.
6465 Add options '-batch' and '-verbose' to 'openssl req'.
6466 [Massimiliano Pala <madwolf@hackmasters.net>]
6468 *) Introduce the possibility to access global variables through
6469 functions on platform were that's the best way to handle exporting
6470 global variables in shared libraries. To enable this functionality,
6471 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
6472 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
6473 is normally done by Configure or something similar).
6475 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
6476 in the source file (foo.c) like this:
6478 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
6479 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
6481 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
6482 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
6484 OPENSSL_DECLARE_GLOBAL(int,foo);
6485 #define foo OPENSSL_GLOBAL_REF(foo)
6486 OPENSSL_DECLARE_GLOBAL(double,bar);
6487 #define bar OPENSSL_GLOBAL_REF(bar)
6489 The #defines are very important, and therefore so is including the
6490 header file everywhere where the defined globals are used.
6492 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
6493 of ASN.1 items, but that structure is a bit different.
6495 The largest change is in util/mkdef.pl which has been enhanced with
6496 better and easier to understand logic to choose which symbols should
6497 go into the Windows .def files as well as a number of fixes and code
6498 cleanup (among others, algorithm keywords are now sorted
6499 lexicographically to avoid constant rewrites).
6502 *) In BN_div() keep a copy of the sign of 'num' before writing the
6503 result to 'rm' because if rm==num the value will be overwritten
6504 and produce the wrong result if 'num' is negative: this caused
6505 problems with BN_mod() and BN_nnmod().
6508 *) Function OCSP_request_verify(). This checks the signature on an
6509 OCSP request and verifies the signer certificate. The signer
6510 certificate is just checked for a generic purpose and OCSP request
6514 *) Add OCSP_check_validity() function to check the validity of OCSP
6515 responses. OCSP responses are prepared in real time and may only
6516 be a few seconds old. Simply checking that the current time lies
6517 between thisUpdate and nextUpdate max reject otherwise valid responses
6518 caused by either OCSP responder or client clock inaccuracy. Instead
6519 we allow thisUpdate and nextUpdate to fall within a certain period of
6520 the current time. The age of the response can also optionally be
6521 checked. Two new options -validity_period and -status_age added to
6525 *) If signature or public key algorithm is unrecognized print out its
6526 OID rather that just UNKNOWN.
6529 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
6530 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
6531 ID to be generated from the issuer certificate alone which can then be
6532 passed to OCSP_id_issuer_cmp().
6535 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
6536 ASN1 modules to export functions returning ASN1_ITEM pointers
6537 instead of the ASN1_ITEM structures themselves. This adds several
6538 new macros which allow the underlying ASN1 function/structure to
6539 be accessed transparently. As a result code should not use ASN1_ITEM
6540 references directly (such as &X509_it) but instead use the relevant
6541 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
6542 use of the new ASN1 code on platforms where exporting structures
6543 is problematical (for example in shared libraries) but exporting
6544 functions returning pointers to structures is not.
6547 *) Add support for overriding the generation of SSL/TLS session IDs.
6548 These callbacks can be registered either in an SSL_CTX or per SSL.
6549 The purpose of this is to allow applications to control, if they wish,
6550 the arbitrary values chosen for use as session IDs, particularly as it
6551 can be useful for session caching in multiple-server environments. A
6552 command-line switch for testing this (and any client code that wishes
6553 to use such a feature) has been added to "s_server".
6554 [Geoff Thorpe, Lutz Jaenicke]
6556 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
6557 of the form '#if defined(...) || defined(...) || ...' and
6558 '#if !defined(...) && !defined(...) && ...'. This also avoids
6559 the growing number of special cases it was previously handling.
6562 *) Make all configuration macros available for application by making
6563 sure they are available in opensslconf.h, by giving them names starting
6564 with "OPENSSL_" to avoid conflicts with other packages and by making
6565 sure e_os2.h will cover all platform-specific cases together with
6567 Additionally, it is now possible to define configuration/platform-
6568 specific names (called "system identities"). In the C code, these
6569 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
6570 macro with the name beginning with "OPENSSL_SYS_", which is determined
6571 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
6575 *) New option -set_serial to 'req' and 'x509' this allows the serial
6576 number to use to be specified on the command line. Previously self
6577 signed certificates were hard coded with serial number 0 and the
6578 CA options of 'x509' had to use a serial number in a file which was
6582 *) New options to 'ca' utility to support V2 CRL entry extensions.
6583 Currently CRL reason, invalidity date and hold instruction are
6584 supported. Add new CRL extensions to V3 code and some new objects.
6587 *) New function EVP_CIPHER_CTX_set_padding() this is used to
6588 disable standard block padding (aka PKCS#5 padding) in the EVP
6589 API, which was previously mandatory. This means that the data is
6590 not padded in any way and so the total length much be a multiple
6591 of the block size, otherwise an error occurs.
6594 *) Initial (incomplete) OCSP SSL support.
6597 *) New function OCSP_parse_url(). This splits up a URL into its host,
6598 port and path components: primarily to parse OCSP URLs. New -url
6599 option to ocsp utility.
6602 *) New nonce behavior. The return value of OCSP_check_nonce() now
6603 reflects the various checks performed. Applications can decide
6604 whether to tolerate certain situations such as an absent nonce
6605 in a response when one was present in a request: the ocsp application
6606 just prints out a warning. New function OCSP_add1_basic_nonce()
6607 this is to allow responders to include a nonce in a response even if
6608 the request is nonce-less.
6611 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
6612 skipped when using openssl x509 multiple times on a single input file,
6613 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
6616 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
6617 set string type: to handle setting ASN1_TIME structures. Fix ca
6618 utility to correctly initialize revocation date of CRLs.
6621 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
6622 the clients preferred ciphersuites and rather use its own preferences.
6623 Should help to work around M$ SGC (Server Gated Cryptography) bug in
6624 Internet Explorer by ensuring unchanged hash method during stepup.
6625 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
6628 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
6629 to aes and add a new 'exist' option to print out symbols that don't
6633 *) Additional options to ocsp utility to allow flags to be set and
6634 additional certificates supplied.
6637 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
6638 OCSP client a number of certificate to only verify the response
6642 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
6643 handle the new API. Currently only ECB, CBC modes supported. Add new
6646 Add TLS AES ciphersuites as described in RFC3268, "Advanced
6647 Encryption Standard (AES) Ciphersuites for Transport Layer
6648 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
6649 not enabled by default and were not part of the "ALL" ciphersuite
6650 alias because they were not yet official; they could be
6651 explicitly requested by specifying the "AESdraft" ciphersuite
6652 group alias. In the final release of OpenSSL 0.9.7, the group
6653 alias is called "AES" and is part of "ALL".)
6654 [Ben Laurie, Steve Henson, Bodo Moeller]
6656 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
6657 request to response.
6660 *) Functions for OCSP responders. OCSP_request_onereq_count(),
6661 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
6662 extract information from a certificate request. OCSP_response_create()
6663 creates a response and optionally adds a basic response structure.
6664 OCSP_basic_add1_status() adds a complete single response to a basic
6665 response and returns the OCSP_SINGLERESP structure just added (to allow
6666 extensions to be included for example). OCSP_basic_add1_cert() adds a
6667 certificate to a basic response and OCSP_basic_sign() signs a basic
6668 response with various flags. New helper functions ASN1_TIME_check()
6669 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
6670 (converts ASN1_TIME to GeneralizedTime).
6673 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
6674 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
6675 structure from a certificate. X509_pubkey_digest() digests the public_key
6676 contents: this is used in various key identifiers.
6679 *) Make sk_sort() tolerate a NULL argument.
6680 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
6682 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
6683 passed by the function are trusted implicitly. If any of them signed the
6684 response then it is assumed to be valid and is not verified.
6687 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
6688 to data. This was previously part of the PKCS7 ASN1 code. This
6689 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
6690 [Steve Henson, reported by Kenneth R. Robinette
6691 <support@securenetterm.com>]
6693 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
6694 routines: without these tracing memory leaks is very painful.
6695 Fix leaks in PKCS12 and PKCS7 routines.
6698 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
6699 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
6700 effectively meant GeneralizedTime would never be used. Now it
6701 is initialised to -1 but X509_time_adj() now has to check the value
6702 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
6703 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
6704 [Steve Henson, reported by Kenneth R. Robinette
6705 <support@securenetterm.com>]
6707 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
6708 result in a zero length in the ASN1_INTEGER structure which was
6709 not consistent with the structure when d2i_ASN1_INTEGER() was used
6710 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
6711 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
6712 where it did not print out a minus for negative ASN1_INTEGER.
6715 *) Add summary printout to ocsp utility. The various functions which
6716 convert status values to strings have been renamed to:
6717 OCSP_response_status_str(), OCSP_cert_status_str() and
6718 OCSP_crl_reason_str() and are no longer static. New options
6719 to verify nonce values and to disable verification. OCSP response
6720 printout format cleaned up.
6723 *) Add additional OCSP certificate checks. These are those specified
6724 in RFC2560. This consists of two separate checks: the CA of the
6725 certificate being checked must either be the OCSP signer certificate
6726 or the issuer of the OCSP signer certificate. In the latter case the
6727 OCSP signer certificate must contain the OCSP signing extended key
6728 usage. This check is performed by attempting to match the OCSP
6729 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
6730 in the OCSP_CERTID structures of the response.
6733 *) Initial OCSP certificate verification added to OCSP_basic_verify()
6734 and related routines. This uses the standard OpenSSL certificate
6735 verify routines to perform initial checks (just CA validity) and
6736 to obtain the certificate chain. Then additional checks will be
6737 performed on the chain. Currently the root CA is checked to see
6738 if it is explicitly trusted for OCSP signing. This is used to set
6739 a root CA as a global signing root: that is any certificate that
6740 chains to that CA is an acceptable OCSP signing certificate.
6743 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
6744 extensions from a separate configuration file.
6745 As when reading extensions from the main configuration file,
6746 the '-extensions ...' option may be used for specifying the
6748 [Massimiliano Pala <madwolf@comune.modena.it>]
6750 *) New OCSP utility. Allows OCSP requests to be generated or
6751 read. The request can be sent to a responder and the output
6752 parsed, outputed or printed in text form. Not complete yet:
6753 still needs to check the OCSP response validity.
6756 *) New subcommands for 'openssl ca':
6757 'openssl ca -status <serial>' prints the status of the cert with
6758 the given serial number (according to the index file).
6759 'openssl ca -updatedb' updates the expiry status of certificates
6761 [Massimiliano Pala <madwolf@comune.modena.it>]
6763 *) New '-newreq-nodes' command option to CA.pl. This is like
6764 '-newreq', but calls 'openssl req' with the '-nodes' option
6765 so that the resulting key is not encrypted.
6766 [Damien Miller <djm@mindrot.org>]
6768 *) New configuration for the GNU Hurd.
6769 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
6771 *) Initial code to implement OCSP basic response verify. This
6772 is currently incomplete. Currently just finds the signer's
6773 certificate and verifies the signature on the response.
6776 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
6777 value of OPENSSLDIR. This is available via the new '-d' option
6778 to 'openssl version', and is also included in 'openssl version -a'.
6781 *) Allowing defining memory allocation callbacks that will be given
6782 file name and line number information in additional arguments
6783 (a const char* and an int). The basic functionality remains, as
6784 well as the original possibility to just replace malloc(),
6785 realloc() and free() by functions that do not know about these
6786 additional arguments. To register and find out the current
6787 settings for extended allocation functions, the following
6788 functions are provided:
6790 CRYPTO_set_mem_ex_functions
6791 CRYPTO_set_locked_mem_ex_functions
6792 CRYPTO_get_mem_ex_functions
6793 CRYPTO_get_locked_mem_ex_functions
6795 These work the same way as CRYPTO_set_mem_functions and friends.
6796 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
6797 extended allocation function is enabled.
6798 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
6799 a conventional allocation function is enabled.
6800 [Richard Levitte, Bodo Moeller]
6802 *) Finish off removing the remaining LHASH function pointer casts.
6803 There should no longer be any prototype-casting required when using
6804 the LHASH abstraction, and any casts that remain are "bugs". See
6805 the callback types and macros at the head of lhash.h for details
6806 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
6809 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
6810 If /dev/[u]random devices are not available or do not return enough
6811 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
6813 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
6814 /etc/entropy will be queried once each in this sequence, quering stops
6815 when enough entropy was collected without querying more sockets.
6818 *) Change the Unix RAND_poll() variant to be able to poll several
6819 random devices, as specified by DEVRANDOM, until a sufficient amount
6820 of data has been collected. We spend at most 10 ms on each file
6821 (select timeout) and read in non-blocking mode. DEVRANDOM now
6822 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
6823 (previously it was just the string "/dev/urandom"), so on typical
6824 platforms the 10 ms delay will never occur.
6825 Also separate out the Unix variant to its own file, rand_unix.c.
6826 For VMS, there's a currently-empty rand_vms.c.
6829 *) Move OCSP client related routines to ocsp_cl.c. These
6830 provide utility functions which an application needing
6831 to issue a request to an OCSP responder and analyse the
6832 response will typically need: as opposed to those which an
6833 OCSP responder itself would need which will be added later.
6835 OCSP_request_sign() signs an OCSP request with an API similar
6836 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
6837 response. OCSP_response_get1_basic() extracts basic response
6838 from response. OCSP_resp_find_status(): finds and extracts status
6839 information from an OCSP_CERTID structure (which will be created
6840 when the request structure is built). These are built from lower
6841 level functions which work on OCSP_SINGLERESP structures but
6842 wont normally be used unless the application wishes to examine
6843 extensions in the OCSP response for example.
6845 Replace nonce routines with a pair of functions.
6846 OCSP_request_add1_nonce() adds a nonce value and optionally
6847 generates a random value. OCSP_check_nonce() checks the
6848 validity of the nonce in an OCSP response.
6851 *) Change function OCSP_request_add() to OCSP_request_add0_id().
6852 This doesn't copy the supplied OCSP_CERTID and avoids the
6853 need to free up the newly created id. Change return type
6854 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
6855 This can then be used to add extensions to the request.
6856 Deleted OCSP_request_new(), since most of its functionality
6857 is now in OCSP_REQUEST_new() (and the case insensitive name
6858 clash) apart from the ability to set the request name which
6859 will be added elsewhere.
6862 *) Update OCSP API. Remove obsolete extensions argument from
6863 various functions. Extensions are now handled using the new
6864 OCSP extension code. New simple OCSP HTTP function which
6865 can be used to send requests and parse the response.
6868 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
6869 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
6870 uses the special reorder version of SET OF to sort the attributes
6871 and reorder them to match the encoded order. This resolves a long
6872 standing problem: a verify on a PKCS7 structure just after signing
6873 it used to fail because the attribute order did not match the
6874 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
6875 it uses the received order. This is necessary to tolerate some broken
6876 software that does not order SET OF. This is handled by encoding
6877 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
6878 to produce the required SET OF.
6881 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
6882 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
6883 files to get correct declarations of the ASN.1 item variables.
6886 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
6887 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
6888 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
6889 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
6890 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
6891 ASN1_ITEM and no wrapper functions.
6894 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
6895 replace the old function pointer based I/O routines. Change most of
6896 the *_d2i_bio() and *_d2i_fp() functions to use these.
6899 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
6900 lines, recognice more "algorithms" that can be deselected, and make
6901 it complain about algorithm deselection that isn't recognised.
6904 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
6905 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
6906 to use new functions. Add NO_ASN1_OLD which can be set to remove
6907 some old style ASN1 functions: this can be used to determine if old
6908 code will still work when these eventually go away.
6911 *) New extension functions for OCSP structures, these follow the
6912 same conventions as certificates and CRLs.
6915 *) New function X509V3_add1_i2d(). This automatically encodes and
6916 adds an extension. Its behaviour can be customised with various
6917 flags to append, replace or delete. Various wrappers added for
6918 certifcates and CRLs.
6921 *) Fix to avoid calling the underlying ASN1 print routine when
6922 an extension cannot be parsed. Correct a typo in the
6923 OCSP_SERVICELOC extension. Tidy up print OCSP format.
6926 *) Make mkdef.pl parse some of the ASN1 macros and add appropriate
6927 entries for variables.
6930 *) Add functionality to apps/openssl.c for detecting locking
6931 problems: As the program is single-threaded, all we have
6932 to do is register a locking callback using an array for
6933 storing which locks are currently held by the program.
6936 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
6937 SSL_get_ex_data_X509_STORE_idx(), which is used in
6938 ssl_verify_cert_chain() and thus can be called at any time
6939 during TLS/SSL handshakes so that thread-safety is essential.
6940 Unfortunately, the ex_data design is not at all suited
6941 for multi-threaded use, so it probably should be abolished.
6944 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
6945 [Broadcom, tweaked and integrated by Geoff Thorpe]
6947 *) Move common extension printing code to new function
6948 X509V3_print_extensions(). Reorganise OCSP print routines and
6949 implement some needed OCSP ASN1 functions. Add OCSP extensions.
6952 *) New function X509_signature_print() to remove duplication in some
6956 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
6957 set (this was treated exactly the same as SET OF previously). This
6958 is used to reorder the STACK representing the structure to match the
6959 encoding. This will be used to get round a problem where a PKCS7
6960 structure which was signed could not be verified because the STACK
6961 order did not reflect the encoded order.
6964 *) Reimplement the OCSP ASN1 module using the new code.
6967 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
6968 for its ASN1 operations. The old style function pointers still exist
6969 for now but they will eventually go away.
6972 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
6973 completely replaces the old ASN1 functionality with a table driven
6974 encoder and decoder which interprets an ASN1_ITEM structure describing
6975 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
6976 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
6977 has also been converted to the new form.
6980 *) Change BN_mod_exp_recp so that negative moduli are tolerated
6981 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
6982 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
6983 for negative moduli.
6986 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
6987 of not touching the result's sign bit.
6990 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
6994 *) Changed the LHASH code to use prototypes for callbacks, and created
6995 macros to declare and implement thin (optionally static) functions
6996 that provide type-safety and avoid function pointer casting for the
6997 type-specific callbacks.
7000 *) Added Kerberos Cipher Suites to be used with TLS, as written in
7002 [Veers Staats <staatsvr@asc.hpc.mil>,
7003 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
7005 *) Reformat the FAQ so the different questions and answers can be divided
7006 in sections depending on the subject.
7009 *) Have the zlib compression code load ZLIB.DLL dynamically under
7013 *) New function BN_mod_sqrt for computing square roots modulo a prime
7014 (using the probabilistic Tonelli-Shanks algorithm unless
7015 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
7016 be handled deterministically).
7017 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
7019 *) Make BN_mod_inverse faster by explicitly handling small quotients
7020 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
7021 512 bits], about 30% for larger ones [1024 or 2048 bits].)
7024 *) New function BN_kronecker.
7027 *) Fix BN_gcd so that it works on negative inputs; the result is
7028 positive unless both parameters are zero.
7029 Previously something reasonably close to an infinite loop was
7030 possible because numbers could be growing instead of shrinking
7031 in the implementation of Euclid's algorithm.
7034 *) Fix BN_is_word() and BN_is_one() macros to take into account the
7035 sign of the number in question.
7037 Fix BN_is_word(a,w) to work correctly for w == 0.
7039 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
7040 because its test if the absolute value of 'a' equals 'w'.
7041 Note that BN_abs_is_word does *not* handle w == 0 reliably;
7042 it exists mostly for use in the implementations of BN_is_zero(),
7043 BN_is_one(), and BN_is_word().
7046 *) New function BN_swap.
7049 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
7050 the exponentiation functions are more likely to produce reasonable
7051 results on negative inputs.
7054 *) Change BN_mod_mul so that the result is always non-negative.
7055 Previously, it could be negative if one of the factors was negative;
7056 I don't think anyone really wanted that behaviour.
7059 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
7060 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
7061 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
7062 and add new functions:
7071 BN_mod_lshift1_quick
7075 These functions always generate non-negative results.
7077 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
7078 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
7080 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
7081 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
7082 be reduced modulo m.
7083 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
7086 The following entry accidentally appeared in the CHANGES file
7087 distributed with OpenSSL 0.9.7. The modifications described in
7088 it do *not* apply to OpenSSL 0.9.7.
7090 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
7091 was actually never needed) and in BN_mul(). The removal in BN_mul()
7092 required a small change in bn_mul_part_recursive() and the addition
7093 of the functions bn_cmp_part_words(), bn_sub_part_words() and
7094 bn_add_part_words(), which do the same thing as bn_cmp_words(),
7095 bn_sub_words() and bn_add_words() except they take arrays with
7100 *) In 'openssl passwd', verify passwords read from the terminal
7101 unless the '-salt' option is used (which usually means that
7102 verification would just waste user's time since the resulting
7103 hash is going to be compared with some given password hash)
7104 or the new '-noverify' option is used.
7106 This is an incompatible change, but it does not affect
7107 non-interactive use of 'openssl passwd' (passwords on the command
7108 line, '-stdin' option, '-in ...' option) and thus should not
7112 *) Remove all references to RSAref, since there's no more need for it.
7115 *) Make DSO load along a path given through an environment variable
7116 (SHLIB_PATH) with shl_load().
7119 *) Constify the ENGINE code as a result of BIGNUM constification.
7120 Also constify the RSA code and most things related to it. In a
7121 few places, most notable in the depth of the ASN.1 code, ugly
7122 casts back to non-const were required (to be solved at a later
7126 *) Make it so the openssl application has all engines loaded by default.
7129 *) Constify the BIGNUM routines a little more.
7132 *) Add the following functions:
7134 ENGINE_load_cswift()
7136 ENGINE_load_atalla()
7138 ENGINE_load_builtin_engines()
7140 That way, an application can itself choose if external engines that
7141 are built-in in OpenSSL shall ever be used or not. The benefit is
7142 that applications won't have to be linked with libdl or other dso
7143 libraries unless it's really needed.
7145 Changed 'openssl engine' to load all engines on demand.
7146 Changed the engine header files to avoid the duplication of some
7147 declarations (they differed!).
7150 *) 'openssl engine' can now list capabilities.
7153 *) Better error reporting in 'openssl engine'.
7156 *) Never call load_dh_param(NULL) in s_server.
7159 *) Add engine application. It can currently list engines by name and
7160 identity, and test if they are actually available.
7163 *) Improve RPM specification file by forcing symbolic linking and making
7164 sure the installed documentation is also owned by root.root.
7165 [Damien Miller <djm@mindrot.org>]
7167 *) Give the OpenSSL applications more possibilities to make use of
7168 keys (public as well as private) handled by engines.
7171 *) Add OCSP code that comes from CertCo.
7174 *) Add VMS support for the Rijndael code.
7177 *) Added untested support for Nuron crypto accelerator.
7180 *) Add support for external cryptographic devices. This code was
7181 previously distributed separately as the "engine" branch.
7182 [Geoff Thorpe, Richard Levitte]
7184 *) Rework the filename-translation in the DSO code. It is now possible to
7185 have far greater control over how a "name" is turned into a filename
7186 depending on the operating environment and any oddities about the
7187 different shared library filenames on each system.
7190 *) Support threads on FreeBSD-elf in Configure.
7193 *) Fix for SHA1 assembly problem with MASM: it produces
7194 warnings about corrupt line number information when assembling
7195 with debugging information. This is caused by the overlapping
7197 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
7200 NCONF_get_number() has no error checking at all. As a replacement,
7201 NCONF_get_number_e() is defined (_e for "error checking") and is
7202 promoted strongly. The old NCONF_get_number is kept around for
7203 binary backward compatibility.
7204 Make it possible for methods to load from something other than a BIO,
7205 by providing a function pointer that is given a name instead of a BIO.
7206 For example, this could be used to load configuration data from an
7210 *) Fix for non blocking accept BIOs. Added new I/O special reason
7211 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
7212 with non blocking I/O was not possible because no retry code was
7213 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
7217 *) Added the beginnings of Rijndael support.
7220 *) Fix for bug in DirectoryString mask setting. Add support for
7221 X509_NAME_print_ex() in 'req' and X509_print_ex() function
7222 to allow certificate printing to more controllable, additional
7223 'certopt' option to 'x509' to allow new printing options to be
7227 *) Clean old EAY MD5 hack from e_os.h.
7230 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
7232 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
7233 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
7234 [Joe Orton, Steve Henson]
7236 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
7238 *) Fix additional bug revealed by the NISCC test suite:
7240 Stop bug triggering large recursion when presented with
7241 certain ASN.1 tags (CVE-2003-0851)
7244 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
7246 *) Fix various bugs revealed by running the NISCC test suite:
7248 Stop out of bounds reads in the ASN1 code when presented with
7249 invalid tags (CVE-2003-0543 and CVE-2003-0544).
7251 If verify callback ignores invalid public key errors don't try to check
7252 certificate signature with the NULL public key.
7256 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
7257 if the server requested one: as stated in TLS 1.0 and SSL 3.0
7261 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
7262 extra data after the compression methods not only for TLS 1.0
7263 but also for SSL 3.0 (as required by the specification).
7264 [Bodo Moeller; problem pointed out by Matthias Loepfe]
7266 *) Change X509_certificate_type() to mark the key as exported/exportable
7267 when it's 512 *bits* long, not 512 bytes.
7270 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
7272 *) Countermeasure against the Klima-Pokorny-Rosa extension of
7273 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
7274 a protocol version number mismatch like a decryption error
7275 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
7278 *) Turn on RSA blinding by default in the default implementation
7279 to avoid a timing attack. Applications that don't want it can call
7280 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
7281 They would be ill-advised to do so in most cases.
7282 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
7284 *) Change RSA blinding code so that it works when the PRNG is not
7285 seeded (in this case, the secret RSA exponent is abused as
7286 an unpredictable seed -- if it is not unpredictable, there
7287 is no point in blinding anyway). Make RSA blinding thread-safe
7288 by remembering the creator's thread ID in rsa->blinding and
7289 having all other threads use local one-time blinding factors
7290 (this requires more computation than sharing rsa->blinding, but
7291 avoids excessive locking; and if an RSA object is not shared
7292 between threads, blinding will still be very fast).
7295 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
7297 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
7298 via timing by performing a MAC computation even if incorrrect
7299 block cipher padding has been found. This is a countermeasure
7300 against active attacks where the attacker has to distinguish
7301 between bad padding and a MAC verification error. (CVE-2003-0078)
7303 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
7304 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
7305 Martin Vuagnoux (EPFL, Ilion)]
7307 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
7309 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
7310 memory from it's contents. This is done with a counter that will
7311 place alternating values in each byte. This can be used to solve
7312 two issues: 1) the removal of calls to memset() by highly optimizing
7313 compilers, and 2) cleansing with other values than 0, since those can
7314 be read through on certain media, for example a swap space on disk.
7317 *) Bugfix: client side session caching did not work with external caching,
7318 because the session->cipher setting was not restored when reloading
7319 from the external cache. This problem was masked, when
7320 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
7321 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
7324 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
7325 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
7326 [Zeev Lieber <zeev-l@yahoo.com>]
7328 *) Undo an undocumented change introduced in 0.9.6e which caused
7329 repeated calls to OpenSSL_add_all_ciphers() and
7330 OpenSSL_add_all_digests() to be ignored, even after calling
7334 *) Change the default configuration reader to deal with last line not
7335 being properly terminated.
7338 *) Change X509_NAME_cmp() so it applies the special rules on handling
7339 DN values that are of type PrintableString, as well as RDNs of type
7340 emailAddress where the value has the type ia5String.
7341 [stefank@valicert.com via Richard Levitte]
7343 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
7344 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
7345 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
7346 the bitwise-OR of the two for use by the majority of applications
7347 wanting this behaviour, and update the docs. The documented
7348 behaviour and actual behaviour were inconsistent and had been
7349 changing anyway, so this is more a bug-fix than a behavioural
7351 [Geoff Thorpe, diagnosed by Nadav Har'El]
7353 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
7354 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
7357 *) Fix initialization code race conditions in
7358 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
7359 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
7360 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
7361 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
7362 ssl2_get_cipher_by_char(),
7363 ssl3_get_cipher_by_char().
7364 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
7366 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
7367 the cached sessions are flushed, as the remove_cb() might use ex_data
7368 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
7369 (see [openssl.org #212]).
7370 [Geoff Thorpe, Lutz Jaenicke]
7372 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
7373 length, instead of the encoding length to d2i_ASN1_OBJECT.
7376 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
7378 *) [In 0.9.6g-engine release:]
7379 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
7380 [Lynn Gazis <lgazis@rainbow.com>]
7382 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
7384 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
7385 and get fix the header length calculation.
7386 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
7387 Alon Kantor <alonk@checkpoint.com> (and others),
7390 *) Use proper error handling instead of 'assertions' in buffer
7391 overflow checks added in 0.9.6e. This prevents DoS (the
7392 assertions could call abort()).
7393 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
7395 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
7397 *) Add various sanity checks to asn1_get_length() to reject
7398 the ASN1 length bytes if they exceed sizeof(long), will appear
7399 negative or the content length exceeds the length of the
7401 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
7403 *) Fix cipher selection routines: ciphers without encryption had no flags
7404 for the cipher strength set and where therefore not handled correctly
7405 by the selection routines (PR #130).
7408 *) Fix EVP_dsa_sha macro.
7412 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
7413 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
7414 that was added in OpenSSL 0.9.6d.
7416 As the countermeasure turned out to be incompatible with some
7417 broken SSL implementations, the new option is part of SSL_OP_ALL.
7418 SSL_OP_ALL is usually employed when compatibility with weird SSL
7419 implementations is desired (e.g. '-bugs' option to 's_client' and
7420 's_server'), so the new option is automatically set in many
7424 *) Changes in security patch:
7426 Changes marked "(CHATS)" were sponsored by the Defense Advanced
7427 Research Projects Agency (DARPA) and Air Force Research Laboratory,
7428 Air Force Materiel Command, USAF, under agreement number
7431 *) Add various sanity checks to asn1_get_length() to reject
7432 the ASN1 length bytes if they exceed sizeof(long), will appear
7433 negative or the content length exceeds the length of the
7434 supplied buffer. (CVE-2002-0659)
7435 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
7437 *) Assertions for various potential buffer overflows, not known to
7439 [Ben Laurie (CHATS)]
7441 *) Various temporary buffers to hold ASCII versions of integers were
7442 too small for 64 bit platforms. (CVE-2002-0655)
7443 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
7445 *) Remote buffer overflow in SSL3 protocol - an attacker could
7446 supply an oversized session ID to a client. (CVE-2002-0656)
7447 [Ben Laurie (CHATS)]
7449 *) Remote buffer overflow in SSL2 protocol - an attacker could
7450 supply an oversized client master key. (CVE-2002-0656)
7451 [Ben Laurie (CHATS)]
7453 Changes between 0.9.6c and 0.9.6d [9 May 2002]
7455 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
7456 encoded as NULL) with id-dsa-with-sha1.
7457 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
7459 *) Check various X509_...() return values in apps/req.c.
7460 [Nils Larsch <nla@trustcenter.de>]
7462 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
7463 an end-of-file condition would erronously be flagged, when the CRLF
7464 was just at the end of a processed block. The bug was discovered when
7465 processing data through a buffering memory BIO handing the data to a
7466 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
7467 <ptsekov@syntrex.com> and Nedelcho Stanev.
7470 *) Implement a countermeasure against a vulnerability recently found
7471 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
7472 before application data chunks to avoid the use of known IVs
7473 with data potentially chosen by the attacker.
7476 *) Fix length checks in ssl3_get_client_hello().
7479 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
7480 to prevent ssl3_read_internal() from incorrectly assuming that
7481 ssl3_read_bytes() found application data while handshake
7482 processing was enabled when in fact s->s3->in_read_app_data was
7483 merely automatically cleared during the initial handshake.
7484 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
7486 *) Fix object definitions for Private and Enterprise: they were not
7487 recognized in their shortname (=lowercase) representation. Extend
7488 obj_dat.pl to issue an error when using undefined keywords instead
7489 of silently ignoring the problem (Svenning Sorensen
7490 <sss@sss.dnsalias.net>).
7493 *) Fix DH_generate_parameters() so that it works for 'non-standard'
7494 generators, i.e. generators other than 2 and 5. (Previously, the
7495 code did not properly initialise the 'add' and 'rem' values to
7496 BN_generate_prime().)
7498 In the new general case, we do not insist that 'generator' is
7499 actually a primitive root: This requirement is rather pointless;
7500 a generator of the order-q subgroup is just as good, if not
7504 *) Map new X509 verification errors to alerts. Discovered and submitted by
7505 Tom Wu <tom@arcot.com>.
7508 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
7509 returning non-zero before the data has been completely received
7510 when using non-blocking I/O.
7511 [Bodo Moeller; problem pointed out by John Hughes]
7513 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
7514 [Ben Laurie, Lutz Jaenicke]
7516 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
7517 Yoram Zahavi <YoramZ@gilian.com>).
7520 *) Add information about CygWin 1.3 and on, and preserve proper
7521 configuration for the versions before that.
7522 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
7524 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
7525 check whether we deal with a copy of a session and do not delete from
7526 the cache in this case. Problem reported by "Izhar Shoshani Levi"
7527 <izhar@checkpoint.com>.
7530 *) Do not store session data into the internal session cache, if it
7531 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
7532 flag is set). Proposed by Aslam <aslam@funk.com>.
7535 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
7539 *) [In 0.9.6d-engine release:]
7540 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
7541 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
7543 *) Add the configuration target linux-s390x.
7544 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
7546 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
7547 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
7548 variable as an indication that a ClientHello message has been
7549 received. As the flag value will be lost between multiple
7550 invocations of ssl3_accept when using non-blocking I/O, the
7551 function may not be aware that a handshake has actually taken
7552 place, thus preventing a new session from being added to the
7555 To avoid this problem, we now set s->new_session to 2 instead of
7556 using a local variable.
7557 [Lutz Jaenicke, Bodo Moeller]
7559 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
7560 if the SSL_R_LENGTH_MISMATCH error is detected.
7561 [Geoff Thorpe, Bodo Moeller]
7563 *) New 'shared_ldflag' column in Configure platform table.
7566 *) Fix EVP_CIPHER_mode macro.
7567 ["Dan S. Camper" <dan@bti.net>]
7569 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
7570 type, we must throw them away by setting rr->length to 0.
7571 [D P Chang <dpc@qualys.com>]
7573 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
7575 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
7576 <Dominikus.Scherkl@biodata.com>. (The previous implementation
7577 worked incorrectly for those cases where range = 10..._2 and
7578 3*range is two bits longer than range.)
7581 *) Only add signing time to PKCS7 structures if it is not already
7585 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
7586 OBJ_ld_ce should be OBJ_id_ce.
7587 Also some ip-pda OIDs in crypto/objects/objects.txt were
7588 incorrect (cf. RFC 3039).
7589 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
7591 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
7592 returns early because it has nothing to do.
7593 [Andy Schneider <andy.schneider@bjss.co.uk>]
7595 *) [In 0.9.6c-engine release:]
7596 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
7597 [Andy Schneider <andy.schneider@bjss.co.uk>]
7599 *) [In 0.9.6c-engine release:]
7600 Add support for Cryptographic Appliance's keyserver technology.
7601 (Use engine 'keyclient')
7602 [Cryptographic Appliances and Geoff Thorpe]
7604 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
7605 is called via tools/c89.sh because arguments have to be
7606 rearranged (all '-L' options must appear before the first object
7608 [Richard Shapiro <rshapiro@abinitio.com>]
7610 *) [In 0.9.6c-engine release:]
7611 Add support for Broadcom crypto accelerator cards, backported
7613 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
7615 *) [In 0.9.6c-engine release:]
7616 Add support for SureWare crypto accelerator cards from
7617 Baltimore Technologies. (Use engine 'sureware')
7618 [Baltimore Technologies and Mark Cox]
7620 *) [In 0.9.6c-engine release:]
7621 Add support for crypto accelerator cards from Accelerated
7622 Encryption Processing, www.aep.ie. (Use engine 'aep')
7623 [AEP Inc. and Mark Cox]
7625 *) Add a configuration entry for gcc on UnixWare.
7626 [Gary Benson <gbenson@redhat.com>]
7628 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
7629 messages are stored in a single piece (fixed-length part and
7630 variable-length part combined) and fix various bugs found on the way.
7633 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
7634 instead. BIO_gethostbyname() does not know what timeouts are
7635 appropriate, so entries would stay in cache even when they have
7637 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
7639 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
7640 faced with a pathologically small ClientHello fragment that does
7641 not contain client_version: Instead of aborting with an error,
7642 simply choose the highest available protocol version (i.e.,
7643 TLS 1.0 unless it is disabled). In practice, ClientHello
7644 messages are never sent like this, but this change gives us
7645 strictly correct behaviour at least for TLS.
7648 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
7649 never resets s->method to s->ctx->method when called from within
7650 one of the SSL handshake functions.
7651 [Bodo Moeller; problem pointed out by Niko Baric]
7653 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
7654 (sent using the client's version number) if client_version is
7655 smaller than the protocol version in use. Also change
7656 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
7657 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
7658 the client will at least see that alert.
7661 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
7665 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
7666 client receives HelloRequest while in a handshake.
7667 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
7669 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
7670 should end in 'break', not 'goto end' which circumvents various
7671 cleanups done in state SSL_ST_OK. But session related stuff
7672 must be disabled for SSL_ST_OK in the case that we just sent a
7675 Also avoid some overhead by not calling ssl_init_wbio_buffer()
7676 before just sending a HelloRequest.
7677 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
7679 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
7680 reveal whether illegal block cipher padding was found or a MAC
7681 verification error occurred. (Neither SSLerr() codes nor alerts
7682 are directly visible to potential attackers, but the information
7683 may leak via logfiles.)
7685 Similar changes are not required for the SSL 2.0 implementation
7686 because the number of padding bytes is sent in clear for SSL 2.0,
7687 and the extra bytes are just ignored. However ssl/s2_pkt.c
7688 failed to verify that the purported number of padding bytes is in
7692 *) Add OpenUNIX-8 support including shared libraries
7693 (Boyd Lynn Gerber <gerberb@zenez.com>).
7696 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
7697 'wristwatch attack' using huge encoding parameters (cf.
7698 James H. Manger's CRYPTO 2001 paper). Note that the
7699 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
7700 encoding parameters and hence was not vulnerable.
7703 *) BN_sqr() bug fix.
7704 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
7706 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
7707 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
7708 followed by modular reduction.
7709 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
7711 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
7712 equivalent based on BN_pseudo_rand() instead of BN_rand().
7715 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
7716 This function was broken, as the check for a new client hello message
7717 to handle SGC did not allow these large messages.
7718 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
7721 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
7724 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
7725 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
7728 *) Rework the configuration and shared library support for Tru64 Unix.
7729 The configuration part makes use of modern compiler features and
7730 still retains old compiler behavior for those that run older versions
7731 of the OS. The shared library support part includes a variant that
7732 uses the RPATH feature, and is available through the special
7733 configuration target "alpha-cc-rpath", which will never be selected
7735 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
7737 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
7738 with the same message size as in ssl3_get_certificate_request().
7739 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
7740 messages might inadvertently be reject as too long.
7741 [Petr Lampa <lampa@fee.vutbr.cz>]
7743 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
7746 *) Modified SSL library such that the verify_callback that has been set
7747 specificly for an SSL object with SSL_set_verify() is actually being
7748 used. Before the change, a verify_callback set with this function was
7749 ignored and the verify_callback() set in the SSL_CTX at the time of
7750 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
7751 to allow the necessary settings.
7754 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
7755 explicitly to NULL, as at least on Solaris 8 this seems not always to be
7756 done automatically (in contradiction to the requirements of the C
7757 standard). This made problems when used from OpenSSH.
7760 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
7761 dh->length and always used
7763 BN_rand_range(priv_key, dh->p).
7765 BN_rand_range() is not necessary for Diffie-Hellman, and this
7766 specific range makes Diffie-Hellman unnecessarily inefficient if
7767 dh->length (recommended exponent length) is much smaller than the
7768 length of dh->p. We could use BN_rand_range() if the order of
7769 the subgroup was stored in the DH structure, but we only have
7774 BN_rand(priv_key, l, ...)
7776 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
7782 RSA_eay_public_encrypt
7783 RSA_eay_private_decrypt
7784 RSA_eay_private_encrypt (signing)
7785 RSA_eay_public_decrypt (signature verification)
7787 (default implementations for RSA_public_encrypt,
7788 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
7789 always reject numbers >= n.
7792 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
7793 to synchronize access to 'locking_thread'. This is necessary on
7794 systems where access to 'locking_thread' (an 'unsigned long'
7795 variable) is not atomic.
7798 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
7799 *before* setting the 'crypto_lock_rand' flag. The previous code had
7800 a race condition if 0 is a valid thread ID.
7801 [Travis Vitek <vitek@roguewave.com>]
7803 *) Add support for shared libraries under Irix.
7804 [Albert Chin-A-Young <china@thewrittenword.com>]
7806 *) Add configuration option to build on Linux on both big-endian and
7808 [Ralf Baechle <ralf@uni-koblenz.de>]
7810 *) Add the possibility to create shared libraries on HP-UX.
7813 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
7815 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
7816 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
7817 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
7818 PRNG state recovery was possible based on the output of
7819 one PRNG request appropriately sized to gain knowledge on
7820 'md' followed by enough consecutive 1-byte PRNG requests
7821 to traverse all of 'state'.
7823 1. When updating 'md_local' (the current thread's copy of 'md')
7824 during PRNG output generation, hash all of the previous
7825 'md_local' value, not just the half used for PRNG output.
7827 2. Make the number of bytes from 'state' included into the hash
7828 independent from the number of PRNG bytes requested.
7830 The first measure alone would be sufficient to avoid
7831 Markku-Juhani's attack. (Actually it had never occurred
7832 to me that the half of 'md_local' used for chaining was the
7833 half from which PRNG output bytes were taken -- I had always
7834 assumed that the secret half would be used.) The second
7835 measure makes sure that additional data from 'state' is never
7836 mixed into 'md_local' in small portions; this heuristically
7837 further strengthens the PRNG.
7840 *) Fix crypto/bn/asm/mips3.s.
7843 *) When only the key is given to "enc", the IV is undefined. Print out
7844 an error message in this case.
7847 *) Handle special case when X509_NAME is empty in X509 printing routines.
7850 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
7851 positive and less than q.
7854 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
7855 used: it isn't thread safe and the add_lock_callback should handle
7857 [Paul Rose <Paul.Rose@bridge.com>]
7859 *) Verify that incoming data obeys the block size in
7860 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
7864 [Ulf Möller, Bodo Möller]
7866 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
7867 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
7868 when fixing the server behaviour for backwards-compatible 'client
7869 hello' messages. (Note that the attack is impractical against
7870 SSL 3.0 and TLS 1.0 anyway because length and version checking
7871 means that the probability of guessing a valid ciphertext is
7872 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
7875 Before 0.9.5, the countermeasure (hide the error by generating a
7876 random 'decryption result') did not work properly because
7877 ERR_clear_error() was missing, meaning that SSL_get_error() would
7878 detect the supposedly ignored error.
7880 Both problems are now fixed.
7883 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
7884 (previously it was 1024).
7887 *) Fix for compatibility mode trust settings: ignore trust settings
7888 unless some valid trust or reject settings are present.
7891 *) Fix for blowfish EVP: its a variable length cipher.
7894 *) Fix various bugs related to DSA S/MIME verification. Handle missing
7895 parameters in DSA public key structures and return an error in the
7896 DSA routines if parameters are absent.
7899 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
7900 in the current directory if neither $RANDFILE nor $HOME was set.
7901 RAND_file_name() in 0.9.6a returned NULL in this case. This has
7902 caused some confusion to Windows users who haven't defined $HOME.
7903 Thus RAND_file_name() is changed again: e_os.h can define a
7904 DEFAULT_HOME, which will be used if $HOME is not set.
7905 For Windows, we use "C:"; on other platforms, we still require
7906 environment variables.
7908 *) Move 'if (!initialized) RAND_poll()' into regions protected by
7909 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
7910 having multiple threads call RAND_poll() concurrently.
7913 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
7914 combination of a flag and a thread ID variable.
7915 Otherwise while one thread is in ssleay_rand_bytes (which sets the
7916 flag), *other* threads can enter ssleay_add_bytes without obeying
7917 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
7918 that they do not hold after the first thread unsets add_do_not_lock).
7921 *) Change bctest again: '-x' expressions are not available in all
7925 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
7927 *) Fix a couple of memory leaks in PKCS7_dataDecode()
7928 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
7930 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
7931 the default extension for executables, if any. Also, make the perl
7932 scripts that use symlink() to test if it really exists and use "cp"
7933 if it doesn't. All this made OpenSSL compilable and installable in
7937 *) Fix for asn1_GetSequence() for indefinite length constructed data.
7938 If SEQUENCE is length is indefinite just set c->slen to the total
7939 amount of data available.
7940 [Steve Henson, reported by shige@FreeBSD.org]
7941 [This change does not apply to 0.9.7.]
7943 *) Change bctest to avoid here-documents inside command substitution
7944 (workaround for FreeBSD /bin/sh bug).
7945 For compatibility with Ultrix, avoid shell functions (introduced
7946 in the bctest version that searches along $PATH).
7949 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
7950 with des_encrypt() defined on some operating systems, like Solaris
7954 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
7955 On the Importance of Eliminating Errors in Cryptographic
7956 Computations, J. Cryptology 14 (2001) 2, 101-119,
7957 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
7960 *) MIPS assembler BIGNUM division bug fix.
7963 *) Disabled incorrect Alpha assembler code.
7966 *) Fix PKCS#7 decode routines so they correctly update the length
7967 after reading an EOC for the EXPLICIT tag.
7969 [This change does not apply to 0.9.7.]
7971 *) Fix bug in PKCS#12 key generation routines. This was triggered
7972 if a 3DES key was generated with a 0 initial byte. Include
7973 PKCS12_BROKEN_KEYGEN compilation option to retain the old
7974 (but broken) behaviour.
7977 *) Enhance bctest to search for a working bc along $PATH and print
7979 [Tim Rice <tim@multitalents.net> via Richard Levitte]
7981 *) Fix memory leaks in err.c: free err_data string if necessary;
7982 don't write to the wrong index in ERR_set_error_data.
7985 *) Implement ssl23_peek (analogous to ssl23_read), which previously
7989 *) Replace rdtsc with _emit statements for VC++ version 5.
7990 [Jeremy Cooper <jeremy@baymoo.org>]
7992 *) Make it possible to reuse SSLv2 sessions.
7995 *) In copy_email() check for >= 0 as a return value for
7996 X509_NAME_get_index_by_NID() since 0 is a valid index.
7997 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
7999 *) Avoid coredump with unsupported or invalid public keys by checking if
8000 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
8001 PKCS7_verify() fails with non detached data.
8004 *) Don't use getenv in library functions when run as setuid/setgid.
8005 New function OPENSSL_issetugid().
8008 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
8009 due to incorrect handling of multi-threading:
8011 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
8013 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
8015 3. Count how many times MemCheck_off() has been called so that
8016 nested use can be treated correctly. This also avoids
8017 inband-signalling in the previous code (which relied on the
8018 assumption that thread ID 0 is impossible).
8021 *) Add "-rand" option also to s_client and s_server.
8024 *) Fix CPU detection on Irix 6.x.
8025 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
8026 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
8028 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
8031 [This change does not apply to 0.9.7.]
8033 *) Use the cached encoding of an X509_NAME structure rather than
8034 copying it. This is apparently the reason for the libsafe "errors"
8035 but the code is actually correct.
8038 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
8039 Bleichenbacher's DSA attack.
8040 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
8041 to be set and top=0 forces the highest bit to be set; top=-1 is new
8042 and leaves the highest bit random.
8043 [Ulf Moeller, Bodo Moeller]
8045 *) In the NCONF_...-based implementations for CONF_... queries
8046 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
8047 a temporary CONF structure with the data component set to NULL
8048 (which gives segmentation faults in lh_retrieve).
8049 Instead, use NULL for the CONF pointer in CONF_get_string and
8050 CONF_get_number (which may use environment variables) and directly
8051 return NULL from CONF_get_section.
8054 *) Fix potential buffer overrun for EBCDIC.
8057 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
8058 keyUsage if basicConstraints absent for a CA.
8061 *) Make SMIME_write_PKCS7() write mail header values with a format that
8062 is more generally accepted (no spaces before the semicolon), since
8063 some programs can't parse those values properly otherwise. Also make
8064 sure BIO's that break lines after each write do not create invalid
8068 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
8069 macros previously used would not encode an empty SEQUENCE OF
8070 and break the signature.
8072 [This change does not apply to 0.9.7.]
8074 *) Zero the premaster secret after deriving the master secret in
8078 *) Add some EVP_add_digest_alias registrations (as found in
8079 OpenSSL_add_all_digests()) to SSL_library_init()
8080 aka OpenSSL_add_ssl_algorithms(). This provides improved
8081 compatibility with peers using X.509 certificates
8082 with unconventional AlgorithmIdentifier OIDs.
8085 *) Fix for Irix with NO_ASM.
8086 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
8088 *) ./config script fixes.
8089 [Ulf Moeller, Richard Levitte]
8091 *) Fix 'openssl passwd -1'.
8094 *) Change PKCS12_key_gen_asc() so it can cope with non null
8095 terminated strings whose length is passed in the passlen
8096 parameter, for example from PEM callbacks. This was done
8097 by adding an extra length parameter to asc2uni().
8098 [Steve Henson, reported by <oddissey@samsung.co.kr>]
8100 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
8101 call failed, free the DSA structure.
8104 *) Fix to uni2asc() to cope with zero length Unicode strings.
8105 These are present in some PKCS#12 files.
8108 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
8109 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
8110 when writing a 32767 byte record.
8111 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
8113 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
8114 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
8116 (RSA objects have a reference count access to which is protected
8117 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
8118 so they are meant to be shared between threads.)
8119 [Bodo Moeller, Geoff Thorpe; original patch submitted by
8120 "Reddie, Steven" <Steven.Reddie@ca.com>]
8122 *) Fix a deadlock in CRYPTO_mem_leaks().
8125 *) Use better test patterns in bntest.
8128 *) rand_win.c fix for Borland C.
8131 *) BN_rshift bugfix for n == 0.
8134 *) Add a 'bctest' script that checks for some known 'bc' bugs
8135 so that 'make test' does not abort just because 'bc' is broken.
8138 *) Store verify_result within SSL_SESSION also for client side to
8139 avoid potential security hole. (Re-used sessions on the client side
8140 always resulted in verify_result==X509_V_OK, not using the original
8141 result of the server certificate verification.)
8144 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
8145 SSL3_RT_APPLICATION_DATA, return 0.
8146 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
8150 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
8151 releases, have been re-implemented by renaming the previous
8152 implementations of ssl2_read and ssl3_read to ssl2_read_internal
8153 and ssl3_read_internal, respectively, and adding 'peek' parameters
8154 to them. The new ssl[23]_{read,peek} functions are calls to
8155 ssl[23]_read_internal with the 'peek' flag set appropriately.
8156 A 'peek' parameter has also been added to ssl3_read_bytes, which
8157 does the actual work for ssl3_read_internal.
8160 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
8161 the method-specific "init()" handler. Also clean up ex_data after
8162 calling the method-specific "finish()" handler. Previously, this was
8163 happening the other way round.
8166 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
8167 The previous value, 12, was not always sufficient for BN_mod_exp().
8170 *) Make sure that shared libraries get the internal name engine with
8171 the full version number and not just 0. This should mark the
8172 shared libraries as not backward compatible. Of course, this should
8173 be changed again when we can guarantee backward binary compatibility.
8176 *) Fix typo in get_cert_by_subject() in by_dir.c
8177 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
8179 *) Rework the system to generate shared libraries:
8181 - Make note of the expected extension for the shared libraries and
8182 if there is a need for symbolic links from for example libcrypto.so.0
8183 to libcrypto.so.0.9.7. There is extended info in Configure for
8186 - Make as few rebuilds of the shared libraries as possible.
8188 - Still avoid linking the OpenSSL programs with the shared libraries.
8190 - When installing, install the shared libraries separately from the
8194 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
8196 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
8197 and not in SSL_clear because the latter is also used by the
8198 accept/connect functions; previously, the settings made by
8199 SSL_set_read_ahead would be lost during the handshake.
8200 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
8202 *) Correct util/mkdef.pl to be selective about disabled algorithms.
8203 Previously, it would create entries for disabled algorithms no
8207 *) Added several new manual pages for SSL_* function.
8210 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
8212 *) In ssl23_get_client_hello, generate an error message when faced
8213 with an initial SSL 3.0/TLS record that is too small to contain the
8214 first two bytes of the ClientHello message, i.e. client_version.
8215 (Note that this is a pathologic case that probably has never happened
8216 in real life.) The previous approach was to use the version number
8217 from the record header as a substitute; but our protocol choice
8218 should not depend on that one because it is not authenticated
8219 by the Finished messages.
8222 *) More robust randomness gathering functions for Windows.
8223 [Jeffrey Altman <jaltman@columbia.edu>]
8225 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
8226 not set then we don't setup the error code for issuer check errors
8227 to avoid possibly overwriting other errors which the callback does
8228 handle. If an application does set the flag then we assume it knows
8229 what it is doing and can handle the new informational codes
8233 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
8234 a general "ANY" type, as such it should be able to decode anything
8235 including tagged types. However it didn't check the class so it would
8236 wrongly interpret tagged types in the same way as their universal
8237 counterpart and unknown types were just rejected. Changed so that the
8238 tagged and unknown types are handled in the same way as a SEQUENCE:
8239 that is the encoding is stored intact. There is also a new type
8240 "V_ASN1_OTHER" which is used when the class is not universal, in this
8241 case we have no idea what the actual type is so we just lump them all
8245 *) On VMS, stdout may very well lead to a file that is written to
8246 in a record-oriented fashion. That means that every write() will
8247 write a separate record, which will be read separately by the
8248 programs trying to read from it. This can be very confusing.
8250 The solution is to put a BIO filter in the way that will buffer
8251 text until a linefeed is reached, and then write everything a
8252 line at a time, so every record written will be an actual line,
8253 not chunks of lines and not (usually doesn't happen, but I've
8254 seen it once) several lines in one record. BIO_f_linebuffer() is
8257 Currently, it's a VMS-only method, because that's where it has
8258 been tested well enough.
8261 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
8262 it can return incorrect results.
8263 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
8264 but it was in 0.9.6-beta[12].)
8267 *) Disable the check for content being present when verifying detached
8268 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
8269 include zero length content when signing messages.
8272 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
8273 BIO_ctrl (for BIO pairs).
8276 *) Add DSO method for VMS.
8279 *) Bug fix: Montgomery multiplication could produce results with the
8283 *) Add RPM specification openssl.spec and modify it to build three
8284 packages. The default package contains applications, application
8285 documentation and run-time libraries. The devel package contains
8286 include files, static libraries and function documentation. The
8287 doc package contains the contents of the doc directory. The original
8288 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
8291 *) Add a large number of documentation files for many SSL routines.
8292 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
8294 *) Add a configuration entry for Sony News 4.
8295 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
8297 *) Don't set the two most significant bits to one when generating a
8298 random number < q in the DSA library.
8301 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
8302 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
8303 the underlying transport is blocking) if a handshake took place.
8304 (The default behaviour is needed by applications such as s_client
8305 and s_server that use select() to determine when to use SSL_read;
8306 but for applications that know in advance when to expect data, it
8307 just makes things more complicated.)
8310 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
8314 *) Add a few more EBCDIC conditionals that make `req' and `x509'
8315 work better on such systems.
8316 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8318 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
8319 Update PKCS12_parse() so it copies the friendlyName and the
8320 keyid to the certificates aux info.
8323 *) Fix bug in PKCS7_verify() which caused an infinite loop
8324 if there was more than one signature.
8325 [Sven Uszpelkat <su@celocom.de>]
8327 *) Major change in util/mkdef.pl to include extra information
8328 about each symbol, as well as presenting variables as well
8329 as functions. This change means that there's n more need
8330 to rebuild the .num files when some algorithms are excluded.
8333 *) Allow the verify time to be set by an application,
8334 rather than always using the current time.
8337 *) Phase 2 verify code reorganisation. The certificate
8338 verify code now looks up an issuer certificate by a
8339 number of criteria: subject name, authority key id
8340 and key usage. It also verifies self signed certificates
8341 by the same criteria. The main comparison function is
8342 X509_check_issued() which performs these checks.
8344 Lot of changes were necessary in order to support this
8345 without completely rewriting the lookup code.
8347 Authority and subject key identifier are now cached.
8349 The LHASH 'certs' is X509_STORE has now been replaced
8350 by a STACK_OF(X509_OBJECT). This is mainly because an
8351 LHASH can't store or retrieve multiple objects with
8352 the same hash value.
8354 As a result various functions (which were all internal
8355 use only) have changed to handle the new X509_STORE
8356 structure. This will break anything that messed round
8357 with X509_STORE internally.
8359 The functions X509_STORE_add_cert() now checks for an
8360 exact match, rather than just subject name.
8362 The X509_STORE API doesn't directly support the retrieval
8363 of multiple certificates matching a given criteria, however
8364 this can be worked round by performing a lookup first
8365 (which will fill the cache with candidate certificates)
8366 and then examining the cache for matches. This is probably
8367 the best we can do without throwing out X509_LOOKUP
8368 entirely (maybe later...).
8370 The X509_VERIFY_CTX structure has been enhanced considerably.
8372 All certificate lookup operations now go via a get_issuer()
8373 callback. Although this currently uses an X509_STORE it
8374 can be replaced by custom lookups. This is a simple way
8375 to bypass the X509_STORE hackery necessary to make this
8376 work and makes it possible to use more efficient techniques
8377 in future. A very simple version which uses a simple
8378 STACK for its trusted certificate store is also provided
8379 using X509_STORE_CTX_trusted_stack().
8381 The verify_cb() and verify() callbacks now have equivalents
8382 in the X509_STORE_CTX structure.
8384 X509_STORE_CTX also has a 'flags' field which can be used
8385 to customise the verify behaviour.
8388 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
8389 excludes S/MIME capabilities.
8392 *) When a certificate request is read in keep a copy of the
8393 original encoding of the signed data and use it when outputing
8394 again. Signatures then use the original encoding rather than
8395 a decoded, encoded version which may cause problems if the
8396 request is improperly encoded.
8399 *) For consistency with other BIO_puts implementations, call
8400 buffer_write(b, ...) directly in buffer_puts instead of calling
8403 In BIO_puts, increment b->num_write as in BIO_write.
8404 [Peter.Sylvester@EdelWeb.fr]
8406 *) Fix BN_mul_word for the case where the word is 0. (We have to use
8407 BN_zero, we may not return a BIGNUM with an array consisting of
8411 *) Avoid calling abort() from within the library when problems are
8412 detected, except if preprocessor symbols have been defined
8413 (such as REF_CHECK, BN_DEBUG etc.).
8416 *) New openssl application 'rsautl'. This utility can be
8417 used for low level RSA operations. DER public key
8418 BIO/fp routines also added.
8421 *) New Configure entry and patches for compiling on QNX 4.
8422 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
8424 *) A demo state-machine implementation was sponsored by
8425 Nuron (http://www.nuron.com/) and is now available in
8426 demos/state_machine.
8429 *) New options added to the 'dgst' utility for signature
8430 generation and verification.
8433 *) Unrecognized PKCS#7 content types are now handled via a
8434 catch all ASN1_TYPE structure. This allows unsupported
8435 types to be stored as a "blob" and an application can
8436 encode and decode it manually.
8439 *) Fix various signed/unsigned issues to make a_strex.c
8441 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
8443 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
8444 length if passed a buffer. ASN1_INTEGER_to_BN failed
8445 if passed a NULL BN and its argument was negative.
8446 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
8448 *) Modification to PKCS#7 encoding routines to output definite
8449 length encoding. Since currently the whole structures are in
8450 memory there's not real point in using indefinite length
8451 constructed encoding. However if OpenSSL is compiled with
8452 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
8455 *) Added BIO_vprintf() and BIO_vsnprintf().
8458 *) Added more prefixes to parse for in the the strings written
8459 through a logging bio, to cover all the levels that are available
8460 through syslog. The prefixes are now:
8462 PANIC, EMERG, EMR => LOG_EMERG
8463 ALERT, ALR => LOG_ALERT
8464 CRIT, CRI => LOG_CRIT
8465 ERROR, ERR => LOG_ERR
8466 WARNING, WARN, WAR => LOG_WARNING
8467 NOTICE, NOTE, NOT => LOG_NOTICE
8468 INFO, INF => LOG_INFO
8469 DEBUG, DBG => LOG_DEBUG
8471 and as before, if none of those prefixes are present at the
8472 beginning of the string, LOG_ERR is chosen.
8474 On Win32, the LOG_* levels are mapped according to this:
8476 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
8477 LOG_WARNING => EVENTLOG_WARNING_TYPE
8478 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
8482 *) Made it possible to reconfigure with just the configuration
8483 argument "reconf" or "reconfigure". The command line arguments
8484 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
8485 and are retrieved from there when reconfiguring.
8489 [Assar Westerlund <assar@sics.se>, Richard Levitte]
8491 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
8494 *) The obj_dat.pl script was messing up the sorting of object
8495 names. The reason was that it compared the quoted version
8496 of strings as a result "OCSP" > "OCSP Signing" because
8497 " > SPACE. Changed script to store unquoted versions of
8498 names and add quotes on output. It was also omitting some
8499 names from the lookup table if they were given a default
8500 value (that is if SN is missing it is given the same
8501 value as LN and vice versa), these are now added on the
8502 grounds that if an object has a name we should be able to
8503 look it up. Finally added warning output when duplicate
8504 short or long names are found.
8507 *) Changes needed for Tandem NSK.
8508 [Scott Uroff <scott@xypro.com>]
8510 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
8511 RSA_padding_check_SSLv23(), special padding was never detected
8512 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
8513 version rollback attacks was not effective.
8515 In s23_clnt.c, don't use special rollback-attack detection padding
8516 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
8517 client; similarly, in s23_srvr.c, don't do the rollback check if
8518 SSL 2.0 is the only protocol enabled in the server.
8521 *) Make it possible to get hexdumps of unprintable data with 'openssl
8522 asn1parse'. By implication, the functions ASN1_parse_dump() and
8523 BIO_dump_indent() are added.
8526 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
8527 these print out strings and name structures based on various
8528 flags including RFC2253 support and proper handling of
8529 multibyte characters. Added options to the 'x509' utility
8530 to allow the various flags to be set.
8533 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
8534 Also change the functions X509_cmp_current_time() and
8535 X509_gmtime_adj() work with an ASN1_TIME structure,
8536 this will enable certificates using GeneralizedTime in validity
8537 dates to be checked.
8540 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
8541 negative public key encodings) on by default,
8542 NO_NEG_PUBKEY_BUG can be set to disable it.
8545 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
8546 content octets. An i2c_ASN1_OBJECT is unnecessary because
8547 the encoding can be trivially obtained from the structure.
8550 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
8551 not read locks (CRYPTO_r_[un]lock).
8554 *) A first attempt at creating official support for shared
8555 libraries through configuration. I've kept it so the
8556 default is static libraries only, and the OpenSSL programs
8557 are always statically linked for now, but there are
8558 preparations for dynamic linking in place.
8559 This has been tested on Linux and Tru64.
8562 *) Randomness polling function for Win9x, as described in:
8563 Peter Gutmann, Software Generation of Practically Strong
8567 *) Fix so PRNG is seeded in req if using an already existing
8571 *) New options to smime application. -inform and -outform
8572 allow alternative formats for the S/MIME message including
8573 PEM and DER. The -content option allows the content to be
8574 specified separately. This should allow things like Netscape
8575 form signing output easier to verify.
8578 *) Fix the ASN1 encoding of tags using the 'long form'.
8581 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
8582 STRING types. These convert content octets to and from the
8583 underlying type. The actual tag and length octets are
8584 already assumed to have been read in and checked. These
8585 are needed because all other string types have virtually
8586 identical handling apart from the tag. By having versions
8587 of the ASN1 functions that just operate on content octets
8588 IMPLICIT tagging can be handled properly. It also allows
8589 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
8590 and ASN1_INTEGER are identical apart from the tag.
8593 *) Change the handling of OID objects as follows:
8595 - New object identifiers are inserted in objects.txt, following
8596 the syntax given in objects.README.
8597 - objects.pl is used to process obj_mac.num and create a new
8599 - obj_dat.pl is used to create a new obj_dat.h, using the data in
8602 This is currently kind of a hack, and the perl code in objects.pl
8603 isn't very elegant, but it works as I intended. The simplest way
8604 to check that it worked correctly is to look in obj_dat.h and
8605 check the array nid_objs and make sure the objects haven't moved
8606 around (this is important!). Additions are OK, as well as
8607 consistent name changes.
8610 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
8613 *) Addition of the command line parameter '-rand file' to 'openssl req'.
8614 The given file adds to whatever has already been seeded into the
8615 random pool through the RANDFILE configuration file option or
8616 environment variable, or the default random state file.
8619 *) mkstack.pl now sorts each macro group into lexical order.
8620 Previously the output order depended on the order the files
8621 appeared in the directory, resulting in needless rewriting
8625 *) Patches to make OpenSSL compile under Win32 again. Mostly
8626 work arounds for the VC++ problem that it treats func() as
8627 func(void). Also stripped out the parts of mkdef.pl that
8628 added extra typesafe functions: these no longer exist.
8631 *) Reorganisation of the stack code. The macros are now all
8632 collected in safestack.h . Each macro is defined in terms of
8633 a "stack macro" of the form SKM_<name>(type, a, b). The
8634 DEBUG_SAFESTACK is now handled in terms of function casts,
8635 this has the advantage of retaining type safety without the
8636 use of additional functions. If DEBUG_SAFESTACK is not defined
8637 then the non typesafe macros are used instead. Also modified the
8638 mkstack.pl script to handle the new form. Needs testing to see
8639 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
8640 the default if no major problems. Similar behaviour for ASN1_SET_OF
8641 and PKCS12_STACK_OF.
8644 *) When some versions of IIS use the 'NET' form of private key the
8645 key derivation algorithm is different. Normally MD5(password) is
8646 used as a 128 bit RC4 key. In the modified case
8647 MD5(MD5(password) + "SGCKEYSALT") is used instead. Added some
8648 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
8649 as the old Netscape_RSA functions except they have an additional
8650 'sgckey' parameter which uses the modified algorithm. Also added
8651 an -sgckey command line option to the rsa utility. Thanks to
8652 Adrian Peck <bertie@ncipher.com> for posting details of the modified
8653 algorithm to openssl-dev.
8656 *) The evp_local.h macros were using 'c.##kname' which resulted in
8657 invalid expansion on some systems (SCO 5.0.5 for example).
8658 Corrected to 'c.kname'.
8659 [Phillip Porch <root@theporch.com>]
8661 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
8662 a STACK of email addresses from a certificate or request, these look
8663 in the subject name and the subject alternative name extensions and
8664 omit any duplicate addresses.
8667 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
8668 This makes DSA verification about 2 % faster.
8671 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
8672 (meaning that now 2^5 values will be precomputed, which is only 4 KB
8673 plus overhead for 1024 bit moduli).
8674 This makes exponentiations about 0.5 % faster for 1024 bit
8675 exponents (as measured by "openssl speed rsa2048").
8678 *) Rename memory handling macros to avoid conflicts with other
8680 Malloc => OPENSSL_malloc
8681 Malloc_locked => OPENSSL_malloc_locked
8682 Realloc => OPENSSL_realloc
8683 Free => OPENSSL_free
8686 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
8687 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
8690 *) CygWin32 support.
8691 [John Jarvie <jjarvie@newsguy.com>]
8693 *) The type-safe stack code has been rejigged. It is now only compiled
8694 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
8695 by default all type-specific stack functions are "#define"d back to
8696 standard stack functions. This results in more streamlined output
8697 but retains the type-safety checking possibilities of the original
8701 *) The STACK code has been cleaned up, and certain type declarations
8702 that didn't make a lot of sense have been brought in line. This has
8703 also involved a cleanup of sorts in safestack.h to more correctly
8704 map type-safe stack functions onto their plain stack counterparts.
8705 This work has also resulted in a variety of "const"ifications of
8706 lots of the code, especially "_cmp" operations which should normally
8707 be prototyped with "const" parameters anyway.
8710 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
8711 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
8712 (The PRNG state consists of two parts, the large pool 'state' and 'md',
8713 where all of 'md' is used each time the PRNG is used, but 'state'
8714 is used only indexed by a cyclic counter. As entropy may not be
8715 well distributed from the beginning, 'md' is important as a
8716 chaining variable. However, the output function chains only half
8717 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
8718 all of 'md', and seeding with STATE_SIZE dummy bytes will result
8719 in all of 'state' being rewritten, with the new values depending
8720 on virtually all of 'md'. This overcomes the 80 bit limitation.)
8723 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
8724 the handshake is continued after ssl_verify_cert_chain();
8725 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
8726 can lead to 'unexplainable' connection aborts later.
8727 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
8729 *) Major EVP API cipher revision.
8730 Add hooks for extra EVP features. This allows various cipher
8731 parameters to be set in the EVP interface. Support added for variable
8732 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
8733 setting of RC2 and RC5 parameters.
8735 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
8738 Remove lots of duplicated code from the EVP library. For example *every*
8739 cipher init() function handles the 'iv' in the same way according to the
8740 cipher mode. They also all do nothing if the 'key' parameter is NULL and
8741 for CFB and OFB modes they zero ctx->num.
8743 New functionality allows removal of S/MIME code RC2 hack.
8745 Most of the routines have the same form and so can be declared in terms
8748 By shifting this to the top level EVP_CipherInit() it can be removed from
8749 all individual ciphers. If the cipher wants to handle IVs or keys
8750 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
8753 Change lots of functions like EVP_EncryptUpdate() to now return a
8754 value: although software versions of the algorithms cannot fail
8755 any installed hardware versions can.
8758 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
8759 this option is set, tolerate broken clients that send the negotiated
8760 protocol version number instead of the requested protocol version
8764 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
8765 i.e. non-zero for export ciphersuites, zero otherwise.
8766 Previous versions had this flag inverted, inconsistent with
8767 rsa_tmp_cb (..._TMP_RSA_CB).
8768 [Bodo Moeller; problem reported by Amit Chopra]
8770 *) Add missing DSA library text string. Work around for some IIS
8771 key files with invalid SEQUENCE encoding.
8774 *) Add a document (doc/standards.txt) that list all kinds of standards
8775 and so on that are implemented in OpenSSL.
8778 *) Enhance c_rehash script. Old version would mishandle certificates
8779 with the same subject name hash and wouldn't handle CRLs at all.
8780 Added -fingerprint option to crl utility, to support new c_rehash
8784 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
8787 *) Fix for SSL server purpose checking. Server checking was
8788 rejecting certificates which had extended key usage present
8789 but no ssl client purpose.
8790 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
8792 *) Make PKCS#12 code work with no password. The PKCS#12 spec
8793 is a little unclear about how a blank password is handled.
8794 Since the password in encoded as a BMPString with terminating
8795 double NULL a zero length password would end up as just the
8796 double NULL. However no password at all is different and is
8797 handled differently in the PKCS#12 key generation code. NS
8798 treats a blank password as zero length. MSIE treats it as no
8799 password on export: but it will try both on import. We now do
8800 the same: PKCS12_parse() tries zero length and no password if
8801 the password is set to "" or NULL (NULL is now a valid password:
8802 it wasn't before) as does the pkcs12 application.
8805 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
8806 perror when PEM_read_bio_X509_REQ fails, the error message must
8807 be obtained from the error queue.
8810 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
8811 it in ERR_remove_state if appropriate, and change ERR_get_state
8812 accordingly to avoid race conditions (this is necessary because
8813 thread_hash is no longer constant once set).
8816 *) Bugfix for linux-elf makefile.one.
8819 *) RSA_get_default_method() will now cause a default
8820 RSA_METHOD to be chosen if one doesn't exist already.
8821 Previously this was only set during a call to RSA_new()
8822 or RSA_new_method(NULL) meaning it was possible for
8823 RSA_get_default_method() to return NULL.
8826 *) Added native name translation to the existing DSO code
8827 that will convert (if the flag to do so is set) filenames
8828 that are sufficiently small and have no path information
8829 into a canonical native form. Eg. "blah" converted to
8830 "libblah.so" or "blah.dll" etc.
8833 *) New function ERR_error_string_n(e, buf, len) which is like
8834 ERR_error_string(e, buf), but writes at most 'len' bytes
8835 including the 0 terminator. For ERR_error_string_n, 'buf'
8837 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
8839 *) CONF library reworked to become more general. A new CONF
8840 configuration file reader "class" is implemented as well as a
8841 new functions (NCONF_*, for "New CONF") to handle it. The now
8842 old CONF_* functions are still there, but are reimplemented to
8843 work in terms of the new functions. Also, a set of functions
8844 to handle the internal storage of the configuration data is
8845 provided to make it easier to write new configuration file
8846 reader "classes" (I can definitely see something reading a
8847 configuration file in XML format, for example), called _CONF_*,
8848 or "the configuration storage API"...
8850 The new configuration file reading functions are:
8852 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
8853 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
8855 NCONF_default, NCONF_WIN32
8857 NCONF_dump_fp, NCONF_dump_bio
8859 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
8860 NCONF_new creates a new CONF object. This works in the same way
8861 as other interfaces in OpenSSL, like the BIO interface.
8862 NCONF_dump_* dump the internal storage of the configuration file,
8863 which is useful for debugging. All other functions take the same
8864 arguments as the old CONF_* functions wth the exception of the
8865 first that must be a `CONF *' instead of a `LHASH *'.
8867 To make it easer to use the new classes with the old CONF_* functions,
8868 the function CONF_set_default_method is provided.
8871 *) Add '-tls1' option to 'openssl ciphers', which was already
8872 mentioned in the documentation but had not been implemented.
8873 (This option is not yet really useful because even the additional
8874 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
8877 *) Initial DSO code added into libcrypto for letting OpenSSL (and
8878 OpenSSL-based applications) load shared libraries and bind to
8879 them in a portable way.
8880 [Geoff Thorpe, with contributions from Richard Levitte]
8882 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
8884 *) Make sure _lrotl and _lrotr are only used with MSVC.
8886 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
8887 (the default implementation of RAND_status).
8889 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
8890 to '-clrext' (= clear extensions), as intended and documented.
8891 [Bodo Moeller; inconsistency pointed out by Michael Attili
8894 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
8895 was larger than the MD block size.
8896 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
8898 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
8899 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
8900 using the passed key: if the passed key was a private key the result
8901 of X509_print(), for example, would be to print out all the private key
8905 *) des_quad_cksum() byte order bug fix.
8906 [Ulf Möller, using the problem description in krb4-0.9.7, where
8907 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
8909 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
8911 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
8913 *) For easily testing in shell scripts whether some command
8914 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
8915 returns with exit code 0 iff no command of the given name is available.
8916 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
8917 the output goes to stdout and nothing is printed to stderr.
8918 Additional arguments are always ignored.
8920 Since for each cipher there is a command of the same name,
8921 the 'no-cipher' compilation switches can be tested this way.
8923 ('openssl no-XXX' is not able to detect pseudo-commands such
8924 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
8927 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
8930 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
8931 is set; it will be thrown away anyway because each handshake creates
8933 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
8934 to parameters -- in previous versions (since OpenSSL 0.9.3) the
8935 'default key' from SSL_CTX_set_tmp_dh would always be lost, meaning
8936 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
8939 *) New s_client option -ign_eof: EOF at stdin is ignored, and
8940 'Q' and 'R' lose their special meanings (quit/renegotiate).
8941 This is part of what -quiet does; unlike -quiet, -ign_eof
8942 does not suppress any output.
8945 *) Add compatibility options to the purpose and trust code. The
8946 purpose X509_PURPOSE_ANY is "any purpose" which automatically
8947 accepts a certificate or CA, this was the previous behaviour,
8948 with all the associated security issues.
8950 X509_TRUST_COMPAT is the old trust behaviour: only and
8951 automatically trust self signed roots in certificate store. A
8952 new trust setting X509_TRUST_DEFAULT is used to specify that
8953 a purpose has no associated trust setting and it should instead
8954 use the value in the default purpose.
8957 *) Fix the PKCS#8 DSA private key code so it decodes keys again
8958 and fix a memory leak.
8961 *) In util/mkerr.pl (which implements 'make errors'), preserve
8962 reason strings from the previous version of the .c file, as
8963 the default to have only downcase letters (and digits) in
8964 automatically generated reasons codes is not always appropriate.
8967 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
8968 using strerror. Previously, ERR_reason_error_string() returned
8969 library names as reason strings for SYSerr; but SYSerr is a special
8970 case where small numbers are errno values, not library numbers.
8973 *) Add '-dsaparam' option to 'openssl dhparam' application. This
8974 converts DSA parameters into DH parameters. (When creating parameters,
8975 DSA_generate_parameters is used.)
8978 *) Include 'length' (recommended exponent length) in C code generated
8979 by 'openssl dhparam -C'.
8982 *) The second argument to set_label in perlasm was already being used
8983 so couldn't be used as a "file scope" flag. Moved to third argument
8987 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
8988 instead of RAND_bytes for encryption IVs and salts.
8991 *) Include RAND_status() into RAND_METHOD instead of implementing
8992 it only for md_rand.c Otherwise replacing the PRNG by calling
8993 RAND_set_rand_method would be impossible.
8996 *) Don't let DSA_generate_key() enter an infinite loop if the random
8997 number generation fails.
9000 *) New 'rand' application for creating pseudo-random output.
9003 *) Added configuration support for Linux/IA64
9004 [Rolf Haberrecker <rolf@suse.de>]
9006 *) Assembler module support for Mingw32.
9009 *) Shared library support for HPUX (in shlib/).
9010 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
9012 *) Shared library support for Solaris gcc.
9013 [Lutz Behnke <behnke@trustcenter.de>]
9015 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
9017 *) PKCS7_encrypt() was adding text MIME headers twice because they
9018 were added manually and by SMIME_crlf_copy().
9021 *) In bntest.c don't call BN_rand with zero bits argument.
9022 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
9024 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
9025 case was implemented. This caused BN_div_recp() to fail occasionally.
9028 *) Add an optional second argument to the set_label() in the perl
9029 assembly language builder. If this argument exists and is set
9030 to 1 it signals that the assembler should use a symbol whose
9031 scope is the entire file, not just the current function. This
9032 is needed with MASM which uses the format label:: for this scope.
9033 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
9035 *) Change the ASN1 types so they are typedefs by default. Before
9036 almost all types were #define'd to ASN1_STRING which was causing
9037 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
9041 *) Change names of new functions to the new get1/get0 naming
9042 convention: After 'get1', the caller owns a reference count
9043 and has to call ..._free; 'get0' returns a pointer to some
9044 data structure without incrementing reference counters.
9045 (Some of the existing 'get' functions increment a reference
9046 counter, some don't.)
9047 Similarly, 'set1' and 'add1' functions increase reference
9048 counters or duplicate objects.
9051 *) Allow for the possibility of temp RSA key generation failure:
9052 the code used to assume it always worked and crashed on failure.
9055 *) Fix potential buffer overrun problem in BIO_printf().
9056 [Ulf Möller, using public domain code by Patrick Powell; problem
9057 pointed out by David Sacerdote <das33@cornell.edu>]
9059 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
9060 RAND_egd() and RAND_status(). In the command line application,
9061 the EGD socket can be specified like a seed file using RANDFILE
9065 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
9066 Some CAs (e.g. Verisign) distribute certificates in this form.
9069 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
9070 list to exclude them. This means that no special compilation option
9071 is needed to use anonymous DH: it just needs to be included in the
9075 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
9076 EVP_MD_type. The old functionality is available in a new macro called
9077 EVP_MD_md(). Change code that uses it and update docs.
9080 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
9081 where the 'void *' argument is replaced by a function pointer argument.
9082 Previously 'void *' was abused to point to functions, which works on
9083 many platforms, but is not correct. As these functions are usually
9084 called by macros defined in OpenSSL header files, most source code
9085 should work without changes.
9088 *) <openssl/opensslconf.h> (which is created by Configure) now contains
9089 sections with information on -D... compiler switches used for
9090 compiling the library so that applications can see them. To enable
9091 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
9092 must be defined. E.g.,
9093 #define OPENSSL_ALGORITHM_DEFINES
9094 #include <openssl/opensslconf.h>
9095 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
9096 [Richard Levitte, Ulf and Bodo Möller]
9098 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
9102 *) Change the 'other' type in certificate aux info to a STACK_OF
9103 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
9104 the required ASN1 format: arbitrary types determined by an OID.
9107 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
9108 argument to 'req'. This is not because the function is newer or
9109 better than others it just uses the work 'NEW' in the certificate
9110 request header lines. Some software needs this.
9113 *) Reorganise password command line arguments: now passwords can be
9114 obtained from various sources. Delete the PEM_cb function and make
9115 it the default behaviour: i.e. if the callback is NULL and the
9116 usrdata argument is not NULL interpret it as a null terminated pass
9117 phrase. If usrdata and the callback are NULL then the pass phrase
9118 is prompted for as usual.
9121 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
9122 the support is automatically enabled. The resulting binaries will
9123 autodetect the card and use it if present.
9124 [Ben Laurie and Compaq Inc.]
9126 *) Work around for Netscape hang bug. This sends certificate request
9127 and server done in one record. Since this is perfectly legal in the
9128 SSL/TLS protocol it isn't a "bug" option and is on by default. See
9129 the bugs/SSLv3 entry for more info.
9132 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
9135 *) Add -rand argument to smime and pkcs12 applications and read/write
9139 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
9142 *) Add command line password options to the remaining applications.
9145 *) Bug fix for BN_div_recp() for numerators with an even number of
9149 *) More tests in bntest.c, and changed test_bn output.
9152 *) ./config recognizes MacOS X now.
9155 *) Bug fix for BN_div() when the first words of num and divsor are
9156 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
9159 *) Add support for various broken PKCS#8 formats, and command line
9160 options to produce them.
9163 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
9164 get temporary BIGNUMs from a BN_CTX.
9167 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
9171 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
9172 include a #define from the old name to the new. The original intent
9173 was that statically linked binaries could for example just call
9174 SSLeay_add_all_ciphers() to just add ciphers to the table and not
9175 link with digests. This never worked because SSLeay_add_all_digests()
9176 and SSLeay_add_all_ciphers() were in the same source file so calling
9177 one would link with the other. They are now in separate source files.
9180 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
9183 *) Use a less unusual form of the Miller-Rabin primality test (it used
9184 a binary algorithm for exponentiation integrated into the Miller-Rabin
9185 loop, our standard modexp algorithms are faster).
9188 *) Support for the EBCDIC character set completed.
9189 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
9191 *) Source code cleanups: use const where appropriate, eliminate casts,
9192 use void * instead of char * in lhash.
9195 *) Bugfix: ssl3_send_server_key_exchange was not restartable
9196 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
9197 this the server could overwrite ephemeral keys that the client
9201 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
9202 using 50 iterations of the Rabin-Miller test.
9204 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
9205 iterations of the Rabin-Miller test as required by the appendix
9206 to FIPS PUB 186[-1]) instead of DSA_is_prime.
9207 As BN_is_prime_fasttest includes trial division, DSA parameter
9208 generation becomes much faster.
9210 This implies a change for the callback functions in DSA_is_prime
9211 and DSA_generate_parameters: The callback function is called once
9212 for each positive witness in the Rabin-Miller test, not just
9213 occasionally in the inner loop; and the parameters to the
9214 callback function now provide an iteration count for the outer
9215 loop rather than for the current invocation of the inner loop.
9216 DSA_generate_parameters additionally can call the callback
9217 function with an 'iteration count' of -1, meaning that a
9218 candidate has passed the trial division test (when q is generated
9219 from an application-provided seed, trial division is skipped).
9222 *) New function BN_is_prime_fasttest that optionally does trial
9223 division before starting the Rabin-Miller test and has
9224 an additional BN_CTX * argument (whereas BN_is_prime always
9225 has to allocate at least one BN_CTX).
9226 'callback(1, -1, cb_arg)' is called when a number has passed the
9227 trial division stage.
9230 *) Fix for bug in CRL encoding. The validity dates weren't being handled
9234 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
9237 *) New function BN_pseudo_rand().
9240 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
9241 bignum version of BN_from_montgomery() with the working code from
9242 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
9246 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
9247 made it impossible to use the same SSL_SESSION data structure in
9248 SSL2 clients in multiple threads.
9251 *) The return value of RAND_load_file() no longer counts bytes obtained
9252 by stat(). RAND_load_file(..., -1) is new and uses the complete file
9253 to seed the PRNG (previously an explicit byte count was required).
9254 [Ulf Möller, Bodo Möller]
9256 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
9257 used (char *) instead of (void *) and had casts all over the place.
9260 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
9263 *) Retain source code compatibility for BN_prime_checks macro:
9264 BN_is_prime(..., BN_prime_checks, ...) now uses
9265 BN_prime_checks_for_size to determine the appropriate number of
9266 Rabin-Miller iterations.
9269 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
9270 DH_CHECK_P_NOT_SAFE_PRIME.
9271 (Check if this is true? OpenPGP calls them "strong".)
9274 *) Merge the functionality of "dh" and "gendh" programs into a new program
9275 "dhparam". The old programs are retained for now but will handle DH keys
9276 (instead of parameters) in future.
9279 *) Make the ciphers, s_server and s_client programs check the return values
9280 when a new cipher list is set.
9283 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
9284 ciphers. Before when the 56bit ciphers were enabled the sorting was
9287 The syntax for the cipher sorting has been extended to support sorting by
9288 cipher-strength (using the strength_bits hard coded in the tables).
9289 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
9291 Fix a bug in the cipher-command parser: when supplying a cipher command
9292 string with an "undefined" symbol (neither command nor alphanumeric
9293 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
9294 an error is flagged.
9296 Due to the strength-sorting extension, the code of the
9297 ssl_create_cipher_list() function was completely rearranged. I hope that
9298 the readability was also increased :-)
9299 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
9301 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
9302 for the first serial number and places 2 in the serial number file. This
9303 avoids problems when the root CA is created with serial number zero and
9304 the first user certificate has the same issuer name and serial number
9308 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
9309 the new code. Add documentation for this stuff.
9312 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
9313 X509_*() to X509at_*() on the grounds that they don't handle X509
9314 structures and behave in an analogous way to the X509v3 functions:
9315 they shouldn't be called directly but wrapper functions should be used
9318 So we also now have some wrapper functions that call the X509at functions
9319 when passed certificate requests. (TO DO: similar things can be done with
9320 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
9321 things. Some of these need some d2i or i2d and print functionality
9322 because they handle more complex structures.)
9325 *) Add missing #ifndefs that caused missing symbols when building libssl
9326 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
9327 NO_RSA in ssl/s2*.c.
9328 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
9330 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
9331 has a return value which indicates the quality of the random data
9332 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
9333 error queue. New function RAND_pseudo_bytes() generates output that is
9334 guaranteed to be unique but not unpredictable. RAND_add is like
9335 RAND_seed, but takes an extra argument for an entropy estimate
9336 (RAND_seed always assumes full entropy).
9339 *) Do more iterations of Rabin-Miller probable prime test (specifically,
9340 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
9341 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
9342 in crypto/bn/bn_prime.c for the complete table). This guarantees a
9343 false-positive rate of at most 2^-80 for random input.
9346 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
9349 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
9350 in the 0.9.5 release), this returns the chain
9351 from an X509_CTX structure with a dup of the stack and all
9352 the X509 reference counts upped: so the stack will exist
9353 after X509_CTX_cleanup() has been called. Modify pkcs12.c
9356 Also make SSL_SESSION_print() print out the verify return
9360 *) Add manpage for the pkcs12 command. Also change the default
9361 behaviour so MAC iteration counts are used unless the new
9362 -nomaciter option is used. This improves file security and
9363 only older versions of MSIE (4.0 for example) need it.
9366 *) Honor the no-xxx Configure options when creating .DEF files.
9369 *) Add PKCS#10 attributes to field table: challengePassword,
9370 unstructuredName and unstructuredAddress. These are taken from
9371 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
9372 international characters are used.
9374 More changes to X509_ATTRIBUTE code: allow the setting of types
9375 based on strings. Remove the 'loc' parameter when adding
9376 attributes because these will be a SET OF encoding which is sorted
9380 *) Initial changes to the 'req' utility to allow request generation
9381 automation. This will allow an application to just generate a template
9382 file containing all the field values and have req construct the
9385 Initial support for X509_ATTRIBUTE handling. Stacks of these are
9386 used all over the place including certificate requests and PKCS#7
9387 structures. They are currently handled manually where necessary with
9388 some primitive wrappers for PKCS#7. The new functions behave in a
9389 manner analogous to the X509 extension functions: they allow
9390 attributes to be looked up by NID and added.
9392 Later something similar to the X509V3 code would be desirable to
9393 automatically handle the encoding, decoding and printing of the
9394 more complex types. The string types like challengePassword can
9395 be handled by the string table functions.
9397 Also modified the multi byte string table handling. Now there is
9398 a 'global mask' which masks out certain types. The table itself
9399 can use the flag STABLE_NO_MASK to ignore the mask setting: this
9400 is useful when for example there is only one permissible type
9401 (as in countryName) and using the mask might result in no valid
9405 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
9406 SSL_get_peer_finished to allow applications to obtain the latest
9407 Finished messages sent to the peer or expected from the peer,
9408 respectively. (SSL_get_peer_finished is usually the Finished message
9409 actually received from the peer, otherwise the protocol will be aborted.)
9411 As the Finished message are message digests of the complete handshake
9412 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
9413 be used for external authentication procedures when the authentication
9414 provided by SSL/TLS is not desired or is not enough.
9417 *) Enhanced support for Alpha Linux is added. Now ./config checks if
9418 the host supports BWX extension and if Compaq C is present on the
9419 $PATH. Just exploiting of the BWX extension results in 20-30%
9420 performance kick for some algorithms, e.g. DES and RC4 to mention
9421 a couple. Compaq C in turn generates ~20% faster code for MD5 and
9425 *) Add support for MS "fast SGC". This is arguably a violation of the
9426 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
9427 weak crypto and after checking the certificate is SGC a second one
9428 with strong crypto. MS SGC stops the first handshake after receiving
9429 the server certificate message and sends a second client hello. Since
9430 a server will typically do all the time consuming operations before
9431 expecting any further messages from the client (server key exchange
9432 is the most expensive) there is little difference between the two.
9434 To get OpenSSL to support MS SGC we have to permit a second client
9435 hello message after we have sent server done. In addition we have to
9436 reset the MAC if we do get this second client hello.
9439 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
9440 if a DER encoded private key is RSA or DSA traditional format. Changed
9441 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
9442 format DER encoded private key. Newer code should use PKCS#8 format which
9443 has the key type encoded in the ASN1 structure. Added DER private key
9444 support to pkcs8 application.
9447 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
9448 ciphersuites has been selected (as required by the SSL 3/TLS 1
9449 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
9450 is set, we interpret this as a request to violate the specification
9451 (the worst that can happen is a handshake failure, and 'correct'
9452 behaviour would result in a handshake failure anyway).
9455 *) In SSL_CTX_add_session, take into account that there might be multiple
9456 SSL_SESSION structures with the same session ID (e.g. when two threads
9457 concurrently obtain them from an external cache).
9458 The internal cache can handle only one SSL_SESSION with a given ID,
9459 so if there's a conflict, we now throw out the old one to achieve
9463 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
9464 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
9465 some routines that use cipher OIDs: some ciphers do not have OIDs
9466 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
9470 *) Simplify the trust setting structure and code. Now we just have
9471 two sequences of OIDs for trusted and rejected settings. These will
9472 typically have values the same as the extended key usage extension
9473 and any application specific purposes.
9475 The trust checking code now has a default behaviour: it will just
9476 check for an object with the same NID as the passed id. Functions can
9477 be provided to override either the default behaviour or the behaviour
9478 for a given id. SSL client, server and email already have functions
9479 in place for compatibility: they check the NID and also return "trusted"
9480 if the certificate is self signed.
9483 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
9484 traditional format into an EVP_PKEY structure.
9487 *) Add a password callback function PEM_cb() which either prompts for
9488 a password if usr_data is NULL or otherwise assumes it is a null
9489 terminated password. Allow passwords to be passed on command line
9490 environment or config files in a few more utilities.
9493 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
9494 keys. Add some short names for PKCS#8 PBE algorithms and allow them
9495 to be specified on the command line for the pkcs8 and pkcs12 utilities.
9496 Update documentation.
9499 *) Support for ASN1 "NULL" type. This could be handled before by using
9500 ASN1_TYPE but there wasn't any function that would try to read a NULL
9501 and produce an error if it couldn't. For compatibility we also have
9502 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
9503 don't allocate anything because they don't need to.
9506 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
9508 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
9510 *) Rebuild of the memory allocation routines used by OpenSSL code and
9511 possibly others as well. The purpose is to make an interface that
9512 provide hooks so anyone can build a separate set of allocation and
9513 deallocation routines to be used by OpenSSL, for example memory
9514 pool implementations, or something else, which was previously hard
9515 since Malloc(), Realloc() and Free() were defined as macros having
9516 the values malloc, realloc and free, respectively (except for Win32
9517 compilations). The same is provided for memory debugging code.
9518 OpenSSL already comes with functionality to find memory leaks, but
9519 this gives people a chance to debug other memory problems.
9521 With these changes, a new set of functions and macros have appeared:
9523 CRYPTO_set_mem_debug_functions() [F]
9524 CRYPTO_get_mem_debug_functions() [F]
9525 CRYPTO_dbg_set_options() [F]
9526 CRYPTO_dbg_get_options() [F]
9527 CRYPTO_malloc_debug_init() [M]
9529 The memory debug functions are NULL by default, unless the library
9530 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
9531 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
9532 gives the standard debugging functions that come with OpenSSL) or
9533 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
9534 provided by the library user) must be used. When the standard
9535 debugging functions are used, CRYPTO_dbg_set_options can be used to
9536 request additional information:
9537 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
9538 the CRYPTO_MDEBUG_xxx macro when compiling the library.
9540 Also, things like CRYPTO_set_mem_functions will always give the
9541 expected result (the new set of functions is used for allocation
9542 and deallocation) at all times, regardless of platform and compiler
9545 To finish it up, some functions that were never use in any other
9546 way than through macros have a new API and new semantic:
9549 CRYPTO_dbg_realloc()
9552 All macros of value have retained their old syntax.
9553 [Richard Levitte and Bodo Moeller]
9555 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
9556 ordering of SMIMECapabilities wasn't in "strength order" and there
9557 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
9561 *) Some ASN1 types with illegal zero length encoding (INTEGER,
9562 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
9563 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
9565 *) Merge in my S/MIME library for OpenSSL. This provides a simple
9566 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
9567 functionality to handle multipart/signed properly) and a utility
9568 called 'smime' to call all this stuff. This is based on code I
9569 originally wrote for Celo who have kindly allowed it to be
9570 included in OpenSSL.
9573 *) Add variants des_set_key_checked and des_set_key_unchecked of
9574 des_set_key (aka des_key_sched). Global variable des_check_key
9575 decides which of these is called by des_set_key; this way
9576 des_check_key behaves as it always did, but applications and
9577 the library itself, which was buggy for des_check_key == 1,
9578 have a cleaner way to pick the version they need.
9581 *) New function PKCS12_newpass() which changes the password of a
9585 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
9586 dynamic mix. In both cases the ids can be used as an index into the
9587 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
9588 functions so they accept a list of the field values and the
9589 application doesn't need to directly manipulate the X509_TRUST
9593 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
9597 *) Modify the way the V3 extension code looks up extensions. This now
9598 works in a similar way to the object code: we have some "standard"
9599 extensions in a static table which is searched with OBJ_bsearch()
9600 and the application can add dynamic ones if needed. The file
9601 crypto/x509v3/ext_dat.h now has the info: this file needs to be
9602 updated whenever a new extension is added to the core code and kept
9603 in ext_nid order. There is a simple program 'tabtest.c' which checks
9604 this. New extensions are not added too often so this file can readily
9605 be maintained manually.
9607 There are two big advantages in doing things this way. The extensions
9608 can be looked up immediately and no longer need to be "added" using
9609 X509V3_add_standard_extensions(): this function now does nothing.
9610 [Side note: I get *lots* of email saying the extension code doesn't
9611 work because people forget to call this function]
9612 Also no dynamic allocation is done unless new extensions are added:
9613 so if we don't add custom extensions there is no need to call
9614 X509V3_EXT_cleanup().
9617 *) Modify enc utility's salting as follows: make salting the default. Add a
9618 magic header, so unsalted files fail gracefully instead of just decrypting
9619 to garbage. This is because not salting is a big security hole, so people
9620 should be discouraged from doing it.
9623 *) Fixes and enhancements to the 'x509' utility. It allowed a message
9624 digest to be passed on the command line but it only used this
9625 parameter when signing a certificate. Modified so all relevant
9626 operations are affected by the digest parameter including the
9627 -fingerprint and -x509toreq options. Also -x509toreq choked if a
9628 DSA key was used because it didn't fix the digest.
9631 *) Initial certificate chain verify code. Currently tests the untrusted
9632 certificates for consistency with the verify purpose (which is set
9633 when the X509_STORE_CTX structure is set up) and checks the pathlength.
9635 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
9636 this is because it will reject chains with invalid extensions whereas
9637 every previous version of OpenSSL and SSLeay made no checks at all.
9639 Trust code: checks the root CA for the relevant trust settings. Trust
9640 settings have an initial value consistent with the verify purpose: e.g.
9641 if the verify purpose is for SSL client use it expects the CA to be
9642 trusted for SSL client use. However the default value can be changed to
9643 permit custom trust settings: one example of this would be to only trust
9644 certificates from a specific "secure" set of CAs.
9646 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
9647 which should be used for version portability: especially since the
9648 verify structure is likely to change more often now.
9650 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
9651 to set them. If not set then assume SSL clients will verify SSL servers
9654 Two new options to the verify program: -untrusted allows a set of
9655 untrusted certificates to be passed in and -purpose which sets the
9656 intended purpose of the certificate. If a purpose is set then the
9657 new chain verify code is used to check extension consistency.
9660 *) Support for the authority information access extension.
9663 *) Modify RSA and DSA PEM read routines to transparently handle
9664 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
9665 public keys in a format compatible with certificate
9666 SubjectPublicKeyInfo structures. Unfortunately there were already
9667 functions called *_PublicKey_* which used various odd formats so
9668 these are retained for compatibility: however the DSA variants were
9669 never in a public release so they have been deleted. Changed dsa/rsa
9670 utilities to handle the new format: note no releases ever handled public
9671 keys so we should be OK.
9673 The primary motivation for this change is to avoid the same fiasco
9674 that dogs private keys: there are several incompatible private key
9675 formats some of which are standard and some OpenSSL specific and
9676 require various evil hacks to allow partial transparent handling and
9677 even then it doesn't work with DER formats. Given the option anything
9678 other than PKCS#8 should be dumped: but the other formats have to
9679 stay in the name of compatibility.
9681 With public keys and the benefit of hindsight one standard format
9682 is used which works with EVP_PKEY, RSA or DSA structures: though
9683 it clearly returns an error if you try to read the wrong kind of key.
9685 Added a -pubkey option to the 'x509' utility to output the public key.
9686 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
9687 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
9688 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
9689 that do the same as the EVP_PKEY_assign_*() except they up the
9690 reference count of the added key (they don't "swallow" the
9694 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
9695 CRLs would fail if the file contained no certificates or no CRLs:
9696 added a new function to read in both types and return the number
9697 read: this means that if none are read it will be an error. The
9698 DER versions of the certificate and CRL reader would always fail
9699 because it isn't possible to mix certificates and CRLs in DER format
9700 without choking one or the other routine. Changed this to just read
9701 a certificate: this is the best we can do. Also modified the code
9702 in apps/verify.c to take notice of return codes: it was previously
9703 attempting to read in certificates from NULL pointers and ignoring
9704 any errors: this is one reason why the cert and CRL reader seemed
9705 to work. It doesn't check return codes from the default certificate
9706 routines: these may well fail if the certificates aren't installed.
9709 *) Code to support otherName option in GeneralName.
9712 *) First update to verify code. Change the verify utility
9713 so it warns if it is passed a self signed certificate:
9714 for consistency with the normal behaviour. X509_verify
9715 has been modified to it will now verify a self signed
9716 certificate if *exactly* the same certificate appears
9717 in the store: it was previously impossible to trust a
9718 single self signed certificate. This means that:
9719 openssl verify ss.pem
9720 now gives a warning about a self signed certificate but
9721 openssl verify -CAfile ss.pem ss.pem
9725 *) For servers, store verify_result in SSL_SESSION data structure
9726 (and add it to external session representation).
9727 This is needed when client certificate verifications fails,
9728 but an application-provided verification callback (set by
9729 SSL_CTX_set_cert_verify_callback) allows accepting the session
9730 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
9731 but returns 1): When the session is reused, we have to set
9732 ssl->verify_result to the appropriate error code to avoid
9734 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
9736 *) Fix a bug in the new PKCS#7 code: it didn't consider the
9737 case in PKCS7_dataInit() where the signed PKCS7 structure
9738 didn't contain any existing data because it was being created.
9739 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
9741 *) Add a salt to the key derivation routines in enc.c. This
9742 forms the first 8 bytes of the encrypted file. Also add a
9743 -S option to allow a salt to be input on the command line.
9746 *) New function X509_cmp(). Oddly enough there wasn't a function
9747 to compare two certificates. We do this by working out the SHA1
9748 hash and comparing that. X509_cmp() will be needed by the trust
9752 *) SSL_get1_session() is like SSL_get_session(), but increments
9753 the reference count in the SSL_SESSION returned.
9754 [Geoff Thorpe <geoff@eu.c2.net>]
9756 *) Fix for 'req': it was adding a null to request attributes.
9757 Also change the X509_LOOKUP and X509_INFO code to handle
9758 certificate auxiliary information.
9761 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
9765 *) Add the possibility to add extra information to the memory leak
9766 detecting output, to form tracebacks, showing from where each
9767 allocation was originated: CRYPTO_push_info("constant string") adds
9768 the string plus current file name and line number to a per-thread
9769 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
9770 is like calling CYRPTO_pop_info() until the stack is empty.
9771 Also updated memory leak detection code to be multi-thread-safe.
9774 *) Add options -text and -noout to pkcs7 utility and delete the
9775 encryption options which never did anything. Update docs.
9778 *) Add options to some of the utilities to allow the pass phrase
9779 to be included on either the command line (not recommended on
9780 OSes like Unix) or read from the environment. Update the
9781 manpages and fix a few bugs.
9784 *) Add a few manpages for some of the openssl commands.
9787 *) Fix the -revoke option in ca. It was freeing up memory twice,
9788 leaking and not finding already revoked certificates.
9791 *) Extensive changes to support certificate auxiliary information.
9792 This involves the use of X509_CERT_AUX structure and X509_AUX
9793 functions. An X509_AUX function such as PEM_read_X509_AUX()
9794 can still read in a certificate file in the usual way but it
9795 will also read in any additional "auxiliary information". By
9796 doing things this way a fair degree of compatibility can be
9797 retained: existing certificates can have this information added
9798 using the new 'x509' options.
9800 Current auxiliary information includes an "alias" and some trust
9801 settings. The trust settings will ultimately be used in enhanced
9802 certificate chain verification routines: currently a certificate
9803 can only be trusted if it is self signed and then it is trusted
9807 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
9808 The problem was that one of the replacement routines had not been working
9809 since SSLeay releases. For now the offending routine has been replaced
9810 with non-optimised assembler. Even so, this now gives around 95%
9811 performance improvement for 1024 bit RSA signs.
9814 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
9815 handling. Most clients have the effective key size in bits equal to
9816 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
9817 A few however don't do this and instead use the size of the decrypted key
9818 to determine the RC2 key length and the AlgorithmIdentifier to determine
9819 the effective key length. In this case the effective key length can still
9820 be 40 bits but the key length can be 168 bits for example. This is fixed
9821 by manually forcing an RC2 key into the EVP_PKEY structure because the
9822 EVP code can't currently handle unusual RC2 key sizes: it always assumes
9823 the key length and effective key length are equal.
9826 *) Add a bunch of functions that should simplify the creation of
9827 X509_NAME structures. Now you should be able to do:
9828 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
9829 and have it automatically work out the correct field type and fill in
9830 the structures. The more adventurous can try:
9831 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
9832 and it will (hopefully) work out the correct multibyte encoding.
9835 *) Change the 'req' utility to use the new field handling and multibyte
9836 copy routines. Before the DN field creation was handled in an ad hoc
9837 way in req, ca, and x509 which was rather broken and didn't support
9838 BMPStrings or UTF8Strings. Since some software doesn't implement
9839 BMPStrings or UTF8Strings yet, they can be enabled using the config file
9840 using the dirstring_type option. See the new comment in the default
9841 openssl.cnf for more info.
9844 *) Make crypto/rand/md_rand.c more robust:
9845 - Assure unique random numbers after fork().
9846 - Make sure that concurrent threads access the global counter and
9847 md serializably so that we never lose entropy in them
9848 or use exactly the same state in multiple threads.
9849 Access to the large state is not always serializable because
9850 the additional locking could be a performance killer, and
9851 md should be large enough anyway.
9854 *) New file apps/app_rand.c with commonly needed functionality
9855 for handling the random seed file.
9857 Use the random seed file in some applications that previously did not:
9859 dsaparam -genkey (which also ignored its '-rand' option),
9862 x509 (when signing).
9863 Except on systems with /dev/urandom, it is crucial to have a random
9864 seed file at least for key creation, DSA signing, and for DH exchanges;
9865 for RSA signatures we could do without one.
9867 gendh and gendsa (unlike genrsa) used to read only the first byte
9868 of each file listed in the '-rand' option. The function as previously
9869 found in genrsa is now in app_rand.c and is used by all programs
9870 that support '-rand'.
9873 *) In RAND_write_file, use mode 0600 for creating files;
9874 don't just chmod when it may be too late.
9877 *) Report an error from X509_STORE_load_locations
9878 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
9881 *) New function ASN1_mbstring_copy() this copies a string in either
9882 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
9883 into an ASN1_STRING type. A mask of permissible types is passed
9884 and it chooses the "minimal" type to use or an error if not type
9888 *) Add function equivalents to the various macros in asn1.h. The old
9889 macros are retained with an M_ prefix. Code inside the library can
9890 use the M_ macros. External code (including the openssl utility)
9891 should *NOT* in order to be "shared library friendly".
9894 *) Add various functions that can check a certificate's extensions
9895 to see if it usable for various purposes such as SSL client,
9896 server or S/MIME and CAs of these types. This is currently
9897 VERY EXPERIMENTAL but will ultimately be used for certificate chain
9898 verification. Also added a -purpose flag to x509 utility to
9899 print out all the purposes.
9902 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
9906 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
9907 for, obtain and decode and extension and obtain its critical flag.
9908 This allows all the necessary extension code to be handled in a
9909 single function call.
9912 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
9913 platforms. See crypto/rc4/rc4_enc.c for further details.
9916 *) New -noout option to asn1parse. This causes no output to be produced
9917 its main use is when combined with -strparse and -out to extract data
9918 from a file (which may not be in ASN.1 format).
9921 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
9922 when producing the local key id.
9923 [Richard Levitte <levitte@stacken.kth.se>]
9925 *) New option -dhparam in s_server. This allows a DH parameter file to be
9926 stated explicitly. If it is not stated then it tries the first server
9927 certificate file. The previous behaviour hard coded the filename
9931 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
9932 a public key to be input or output. For example:
9933 openssl rsa -in key.pem -pubout -out pubkey.pem
9934 Also added necessary DSA public key functions to handle this.
9937 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
9938 in the message. This was handled by allowing
9939 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
9940 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
9942 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
9943 to the end of the strings whereas this didn't. This would cause problems
9944 if strings read with d2i_ASN1_bytes() were later modified.
9945 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
9947 *) Fix for base64 decode bug. When a base64 bio reads only one line of
9948 data and it contains EOF it will end up returning an error. This is
9949 caused by input 46 bytes long. The cause is due to the way base64
9950 BIOs find the start of base64 encoded data. They do this by trying a
9951 trial decode on each line until they find one that works. When they
9952 do a flag is set and it starts again knowing it can pass all the
9953 data directly through the decoder. Unfortunately it doesn't reset
9954 the context it uses. This means that if EOF is reached an attempt
9955 is made to pass two EOFs through the context and this causes the
9956 resulting error. This can also cause other problems as well. As is
9957 usual with these problems it takes *ages* to find and the fix is
9958 trivial: move one line.
9959 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
9961 *) Ugly workaround to get s_client and s_server working under Windows. The
9962 old code wouldn't work because it needed to select() on sockets and the
9963 tty (for keypresses and to see if data could be written). Win32 only
9964 supports select() on sockets so we select() with a 1s timeout on the
9965 sockets and then see if any characters are waiting to be read, if none
9966 are present then we retry, we also assume we can always write data to
9967 the tty. This isn't nice because the code then blocks until we've
9968 received a complete line of data and it is effectively polling the
9969 keyboard at 1s intervals: however it's quite a bit better than not
9970 working at all :-) A dedicated Windows application might handle this
9971 with an event loop for example.
9974 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
9975 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
9976 will be called when RSA_sign() and RSA_verify() are used. This is useful
9977 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
9978 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
9979 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
9980 This necessitated the support of an extra signature type NID_md5_sha1
9981 for SSL signatures and modifications to the SSL library to use it instead
9982 of calling RSA_public_decrypt() and RSA_private_encrypt().
9985 *) Add new -verify -CAfile and -CApath options to the crl program, these
9986 will lookup a CRL issuers certificate and verify the signature in a
9987 similar way to the verify program. Tidy up the crl program so it
9988 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
9989 less strict. It will now permit CRL extensions even if it is not
9990 a V2 CRL: this will allow it to tolerate some broken CRLs.
9993 *) Initialize all non-automatic variables each time one of the openssl
9994 sub-programs is started (this is necessary as they may be started
9995 multiple times from the "OpenSSL>" prompt).
9996 [Lennart Bang, Bodo Moeller]
9998 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
9999 removing all other RSA functionality (this is what NO_RSA does). This
10000 is so (for example) those in the US can disable those operations covered
10001 by the RSA patent while allowing storage and parsing of RSA keys and RSA
10005 *) Non-copying interface to BIO pairs.
10006 (still largely untested)
10009 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
10010 ASCII string. This was handled independently in various places before.
10013 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
10014 UTF8 strings a character at a time.
10017 *) Use client_version from client hello to select the protocol
10018 (s23_srvr.c) and for RSA client key exchange verification
10019 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
10022 *) Add various utility functions to handle SPKACs, these were previously
10023 handled by poking round in the structure internals. Added new function
10024 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
10025 print, verify and generate SPKACs. Based on an original idea from
10026 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
10029 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
10032 *) Allow the config file extension section to be overwritten on the
10033 command line. Based on an original idea from Massimiliano Pala
10034 <madwolf@comune.modena.it>. The new option is called -extensions
10035 and can be applied to ca, req and x509. Also -reqexts to override
10036 the request extensions in req and -crlexts to override the crl extensions
10040 *) Add new feature to the SPKAC handling in ca. Now you can include
10041 the same field multiple times by preceding it by "XXXX." for example:
10044 this is the same syntax as used in the req config file.
10047 *) Allow certificate extensions to be added to certificate requests. These
10048 are specified in a 'req_extensions' option of the req section of the
10049 config file. They can be printed out with the -text option to req but
10050 are otherwise ignored at present.
10053 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
10054 data read consists of only the final block it would not decrypted because
10055 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
10056 A misplaced 'break' also meant the decrypted final block might not be
10057 copied until the next read.
10060 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
10061 a few extra parameters to the DH structure: these will be useful if
10062 for example we want the value of 'q' or implement X9.42 DH.
10065 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
10066 provides hooks that allow the default DSA functions or functions on a
10067 "per key" basis to be replaced. This allows hardware acceleration and
10068 hardware key storage to be handled without major modification to the
10069 library. Also added low level modexp hooks and CRYPTO_EX structure and
10070 associated functions.
10073 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
10074 as "read only": it can't be written to and the buffer it points to will
10075 not be freed. Reading from a read only BIO is much more efficient than
10076 a normal memory BIO. This was added because there are several times when
10077 an area of memory needs to be read from a BIO. The previous method was
10078 to create a memory BIO and write the data to it, this results in two
10079 copies of the data and an O(n^2) reading algorithm. There is a new
10080 function BIO_new_mem_buf() which creates a read only memory BIO from
10081 an area of memory. Also modified the PKCS#7 routines to use read only
10085 *) Bugfix: ssl23_get_client_hello did not work properly when called in
10086 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
10087 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
10088 but a retry condition occurred while trying to read the rest.
10091 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
10092 NID_pkcs7_encrypted by default: this was wrong since this should almost
10093 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
10094 the encrypted data type: this is a more sensible place to put it and it
10095 allows the PKCS#12 code to be tidied up that duplicated this
10099 *) Changed obj_dat.pl script so it takes its input and output files on
10100 the command line. This should avoid shell escape redirection problems
10104 *) Initial support for certificate extension requests, these are included
10105 in things like Xenroll certificate requests. Included functions to allow
10106 extensions to be obtained and added.
10109 *) -crlf option to s_client and s_server for sending newlines as
10110 CRLF (as required by many protocols).
10113 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
10115 *) Install libRSAglue.a when OpenSSL is built with RSAref.
10116 [Ralf S. Engelschall]
10118 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
10119 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
10121 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
10125 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
10126 DH parameters/keys (q is lost during that conversion, but the resulting
10127 DH parameters contain its length).
10129 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
10130 much faster than DH_generate_parameters (which creates parameters
10131 where p = 2*q + 1), and also the smaller q makes DH computations
10132 much more efficient (160-bit exponentiation instead of 1024-bit
10133 exponentiation); so this provides a convenient way to support DHE
10134 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
10135 utter importance to use
10136 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
10138 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
10139 when such DH parameters are used, because otherwise small subgroup
10140 attacks may become possible!
10143 *) Avoid memory leak in i2d_DHparams.
10146 *) Allow the -k option to be used more than once in the enc program:
10147 this allows the same encrypted message to be read by multiple recipients.
10150 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
10151 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
10152 it will always use the numerical form of the OID, even if it has a short
10156 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
10157 method only got called if p,q,dmp1,dmq1,iqmp components were present,
10158 otherwise bn_mod_exp was called. In the case of hardware keys for example
10159 no private key components need be present and it might store extra data
10160 in the RSA structure, which cannot be accessed from bn_mod_exp.
10161 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
10162 private key operations.
10165 *) Added support for SPARC Linux.
10168 *) pem_password_cb function type incompatibly changed from
10169 typedef int pem_password_cb(char *buf, int size, int rwflag);
10171 ....(char *buf, int size, int rwflag, void *userdata);
10172 so that applications can pass data to their callbacks:
10173 The PEM[_ASN1]_{read,write}... functions and macros now take an
10174 additional void * argument, which is just handed through whenever
10175 the password callback is called.
10176 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
10178 New function SSL_CTX_set_default_passwd_cb_userdata.
10180 Compatibility note: As many C implementations push function arguments
10181 onto the stack in reverse order, the new library version is likely to
10182 interoperate with programs that have been compiled with the old
10183 pem_password_cb definition (PEM_whatever takes some data that
10184 happens to be on the stack as its last argument, and the callback
10185 just ignores this garbage); but there is no guarantee whatsoever that
10188 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
10189 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
10190 problems not only on Windows, but also on some Unix platforms.
10191 To avoid problematic command lines, these definitions are now in an
10192 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
10193 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
10196 *) MIPS III/IV assembler module is reimplemented.
10199 *) More DES library cleanups: remove references to srand/rand and
10200 delete an unused file.
10203 *) Add support for the the free Netwide assembler (NASM) under Win32,
10204 since not many people have MASM (ml) and it can be hard to obtain.
10205 This is currently experimental but it seems to work OK and pass all
10206 the tests. Check out INSTALL.W32 for info.
10209 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
10210 without temporary keys kept an extra copy of the server key,
10211 and connections with temporary keys did not free everything in case
10215 *) New function RSA_check_key and new openssl rsa option -check
10216 for verifying the consistency of RSA keys.
10217 [Ulf Moeller, Bodo Moeller]
10219 *) Various changes to make Win32 compile work:
10220 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
10221 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
10222 comparison" warnings.
10223 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
10226 *) Add a debugging option to PKCS#5 v2 key generation function: when
10227 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
10228 derived keys are printed to stderr.
10231 *) Copy the flags in ASN1_STRING_dup().
10232 [Roman E. Pavlov <pre@mo.msk.ru>]
10234 *) The x509 application mishandled signing requests containing DSA
10235 keys when the signing key was also DSA and the parameters didn't match.
10237 It was supposed to omit the parameters when they matched the signing key:
10238 the verifying software was then supposed to automatically use the CA's
10239 parameters if they were absent from the end user certificate.
10241 Omitting parameters is no longer recommended. The test was also
10242 the wrong way round! This was probably due to unusual behaviour in
10243 EVP_cmp_parameters() which returns 1 if the parameters match.
10244 This meant that parameters were omitted when they *didn't* match and
10245 the certificate was useless. Certificates signed with 'ca' didn't have
10247 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
10249 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
10250 The interface is as follows:
10251 Applications can use
10252 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
10253 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
10254 "off" is now the default.
10255 The library internally uses
10256 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
10257 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
10258 to disable memory-checking temporarily.
10260 Some inconsistent states that previously were possible (and were
10261 even the default) are now avoided.
10263 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
10264 with each memory chunk allocated; this is occasionally more helpful
10265 than just having a counter.
10267 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
10269 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
10273 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
10274 which largely parallels "options", but is for changing API behaviour,
10275 whereas "options" are about protocol behaviour.
10276 Initial "mode" flags are:
10278 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
10279 a single record has been written.
10280 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
10281 retries use the same buffer location.
10282 (But all of the contents must be
10286 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
10289 *) Fix problems with no-hmac etc.
10290 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
10292 *) New functions RSA_get_default_method(), RSA_set_method() and
10293 RSA_get_method(). These allows replacement of RSA_METHODs without having
10294 to mess around with the internals of an RSA structure.
10297 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
10298 Also really enable memory leak checks in openssl.c and in some
10300 [Chad C. Mulligan, Bodo Moeller]
10302 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
10303 up the length of negative integers. This has now been simplified to just
10304 store the length when it is first determined and use it later, rather
10305 than trying to keep track of where data is copied and updating it to
10307 [Steve Henson, reported by Brien Wheeler
10308 <bwheeler@authentica-security.com>]
10310 *) Add a new function PKCS7_signatureVerify. This allows the verification
10311 of a PKCS#7 signature but with the signing certificate passed to the
10312 function itself. This contrasts with PKCS7_dataVerify which assumes the
10313 certificate is present in the PKCS#7 structure. This isn't always the
10314 case: certificates can be omitted from a PKCS#7 structure and be
10315 distributed by "out of band" means (such as a certificate database).
10318 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
10319 function prototypes in pem.h, also change util/mkdef.pl to add the
10320 necessary function names.
10323 *) mk1mf.pl (used by Windows builds) did not properly read the
10324 options set by Configure in the top level Makefile, and Configure
10325 was not even able to write more than one option correctly.
10326 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
10329 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
10330 file to be loaded from a BIO or FILE pointer. The BIO version will
10331 for example allow memory BIOs to contain config info.
10334 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
10335 Whoever hopes to achieve shared-library compatibility across versions
10336 must use this, not the compile-time macro.
10337 (Exercise 0.9.4: Which is the minimum library version required by
10339 Note: All this applies only to multi-threaded programs, others don't
10343 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
10344 through a BIO pair triggered the default case, i.e.
10345 SSLerr(...,SSL_R_UNKNOWN_STATE).
10348 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
10349 can use the SSL library even if none of the specific BIOs is
10353 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
10354 for the encoded length.
10355 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
10357 *) Add initial documentation of the X509V3 functions.
10360 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
10361 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
10362 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
10363 secure PKCS#8 private key format with a high iteration count.
10366 *) Fix determination of Perl interpreter: A perl or perl5
10367 _directory_ in $PATH was also accepted as the interpreter.
10368 [Ralf S. Engelschall]
10370 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
10371 wrong with it but it was very old and did things like calling
10372 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
10373 unusual formatting.
10376 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
10377 to use the new extension code.
10380 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
10381 with macros. This should make it easier to change their form, add extra
10382 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
10386 *) Add to configuration table a new entry that can specify an alternative
10387 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
10388 according to Mark Crispin <MRC@Panda.COM>.
10392 *) DES CBC did not update the IV. Weird.
10395 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
10396 Changing the behaviour of the former might break existing programs --
10397 where IV updating is needed, des_ncbc_encrypt can be used.
10400 *) When bntest is run from "make test" it drives bc to check its
10401 calculations, as well as internally checking them. If an internal check
10402 fails, it needs to cause bc to give a non-zero result or make test carries
10403 on without noticing the failure. Fixed.
10406 *) DES library cleanups.
10409 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
10410 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
10411 ciphers. NOTE: although the key derivation function has been verified
10412 against some published test vectors it has not been extensively tested
10413 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
10417 *) Instead of "mkdir -p", which is not fully portable, use new
10418 Perl script "util/mkdir-p.pl".
10421 *) Rewrite the way password based encryption (PBE) is handled. It used to
10422 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
10423 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
10424 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
10425 the 'parameter' field of the AlgorithmIdentifier is passed to the
10426 underlying key generation function so it must do its own ASN1 parsing.
10427 This has also changed the EVP_PBE_CipherInit() function which now has a
10428 'parameter' argument instead of literal salt and iteration count values
10429 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
10432 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
10433 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
10434 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
10435 KEY" because this clashed with PKCS#8 unencrypted string. Since this
10436 value was just used as a "magic string" and not used directly its
10437 value doesn't matter.
10440 *) Introduce some semblance of const correctness to BN. Shame C doesn't
10444 *) "linux-sparc64" configuration (ultrapenguin).
10445 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
10446 "linux-sparc" configuration.
10447 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
10449 *) config now generates no-xxx options for missing ciphers.
10452 *) Support the EBCDIC character set (work in progress).
10453 File ebcdic.c not yet included because it has a different license.
10454 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
10456 *) Support BS2000/OSD-POSIX.
10457 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
10459 *) Make callbacks for key generation use void * instead of char *.
10462 *) Make S/MIME samples compile (not yet tested).
10465 *) Additional typesafe stacks.
10468 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
10472 Changes between 0.9.3 and 0.9.3a [29 May 1999]
10474 *) New configuration variant "sco5-gcc".
10476 *) Updated some demos.
10477 [Sean O Riordain, Wade Scholine]
10479 *) Add missing BIO_free at exit of pkcs12 application.
10482 *) Fix memory leak in conf.c.
10485 *) Updates for Win32 to assembler version of MD5.
10488 *) Set #! path to perl in apps/der_chop to where we found it
10489 instead of using a fixed path.
10492 *) SHA library changes for irix64-mips4-cc.
10495 *) Improvements for VMS support.
10499 Changes between 0.9.2b and 0.9.3 [24 May 1999]
10501 *) Bignum library bug fix. IRIX 6 passes "make test" now!
10502 This also avoids the problems with SC4.2 and unpatched SC5.
10503 [Andy Polyakov <appro@fy.chalmers.se>]
10505 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
10506 These are required because of the typesafe stack would otherwise break
10507 existing code. If old code used a structure member which used to be STACK
10508 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
10509 sk_num or sk_value it would produce an error because the num, data members
10510 are not present in STACK_OF. Now it just produces a warning. sk_set
10511 replaces the old method of assigning a value to sk_value
10512 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
10513 that does this will no longer work (and should use sk_set instead) but
10514 this could be regarded as a "questionable" behaviour anyway.
10517 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
10518 correctly handle encrypted S/MIME data.
10521 *) Change type of various DES function arguments from des_cblock
10522 (which means, in function argument declarations, pointer to char)
10523 to des_cblock * (meaning pointer to array with 8 char elements),
10524 which allows the compiler to do more typechecking; it was like
10525 that back in SSLeay, but with lots of ugly casts.
10527 Introduce new type const_des_cblock.
10530 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
10531 problems: find RecipientInfo structure that matches recipient certificate
10532 and initialise the ASN1 structures properly based on passed cipher.
10535 *) Belatedly make the BN tests actually check the results.
10538 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
10539 to and from BNs: it was completely broken. New compilation option
10540 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
10541 key elements as negative integers.
10544 *) Reorganize and speed up MD5.
10545 [Andy Polyakov <appro@fy.chalmers.se>]
10548 [Richard Levitte <richard@levitte.org>]
10550 *) New option -out to asn1parse to allow the parsed structure to be
10551 output to a file. This is most useful when combined with the -strparse
10552 option to examine the output of things like OCTET STRINGS.
10555 *) Make SSL library a little more fool-proof by not requiring any longer
10556 that SSL_set_{accept,connect}_state be called before
10557 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
10558 in many applications because usually everything *appeared* to work as
10559 intended anyway -- now it really works as intended).
10562 *) Move openssl.cnf out of lib/.
10565 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
10566 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
10567 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
10568 [Ralf S. Engelschall]
10570 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
10571 handle PKCS#7 enveloped data properly.
10572 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
10574 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
10575 copying pointers. The cert_st handling is changed by this in
10576 various ways (and thus what used to be known as ctx->default_cert
10577 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
10578 any longer when s->cert does not give us what we need).
10579 ssl_cert_instantiate becomes obsolete by this change.
10580 As soon as we've got the new code right (possibly it already is?),
10581 we have solved a couple of bugs of the earlier code where s->cert
10582 was used as if it could not have been shared with other SSL structures.
10584 Note that using the SSL API in certain dirty ways now will result
10585 in different behaviour than observed with earlier library versions:
10586 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
10587 does not influence s as it used to.
10589 In order to clean up things more thoroughly, inside SSL_SESSION
10590 we don't use CERT any longer, but a new structure SESS_CERT
10591 that holds per-session data (if available); currently, this is
10592 the peer's certificate chain and, for clients, the server's certificate
10593 and temporary key. CERT holds only those values that can have
10594 meaningful defaults in an SSL_CTX.
10597 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
10598 from the internal representation. Various PKCS#7 fixes: remove some
10599 evil casts and set the enc_dig_alg field properly based on the signing
10603 *) Allow PKCS#12 password to be set from the command line or the
10604 environment. Let 'ca' get its config file name from the environment
10605 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
10609 *) Allow certificate policies extension to use an IA5STRING for the
10610 organization field. This is contrary to the PKIX definition but
10611 VeriSign uses it and IE5 only recognises this form. Document 'x509'
10615 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
10616 without disallowing inline assembler and the like for non-pedantic builds.
10619 *) Support Borland C++ builder.
10620 [Janez Jere <jj@void.si>, modified by Ulf Möller]
10622 *) Support Mingw32.
10625 *) SHA-1 cleanups and performance enhancements.
10626 [Andy Polyakov <appro@fy.chalmers.se>]
10628 *) Sparc v8plus assembler for the bignum library.
10629 [Andy Polyakov <appro@fy.chalmers.se>]
10631 *) Accept any -xxx and +xxx compiler options in Configure.
10634 *) Update HPUX configuration.
10637 *) Add missing sk_<type>_unshift() function to safestack.h
10638 [Ralf S. Engelschall]
10640 *) New function SSL_CTX_use_certificate_chain_file that sets the
10641 "extra_cert"s in addition to the certificate. (This makes sense
10642 only for "PEM" format files, as chains as a whole are not
10646 *) Support verify_depth from the SSL API.
10647 x509_vfy.c had what can be considered an off-by-one-error:
10648 Its depth (which was not part of the external interface)
10649 was actually counting the number of certificates in a chain;
10650 now it really counts the depth.
10653 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
10654 instead of X509err, which often resulted in confusing error
10655 messages since the error codes are not globally unique
10656 (e.g. an alleged error in ssl3_accept when a certificate
10657 didn't match the private key).
10659 *) New function SSL_CTX_set_session_id_context that allows to set a default
10660 value (so that you don't need SSL_set_session_id_context for each
10661 connection using the SSL_CTX).
10664 *) OAEP decoding bug fix.
10667 *) Support INSTALL_PREFIX for package builders, as proposed by
10671 *) New Configure options "threads" and "no-threads". For systems
10672 where the proper compiler options are known (currently Solaris
10673 and Linux), "threads" is the default.
10676 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
10679 *) Install various scripts to $(OPENSSLDIR)/misc, not to
10680 $(INSTALLTOP)/bin -- they shouldn't clutter directories
10681 such as /usr/local/bin.
10684 *) "make linux-shared" to build shared libraries.
10685 [Niels Poppe <niels@netbox.org>]
10687 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
10690 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
10691 extension adding in x509 utility.
10694 *) Remove NOPROTO sections and error code comments.
10697 *) Partial rewrite of the DEF file generator to now parse the ANSI
10701 *) New Configure options --prefix=DIR and --openssldir=DIR.
10704 *) Complete rewrite of the error code script(s). It is all now handled
10705 by one script at the top level which handles error code gathering,
10706 header rewriting and C source file generation. It should be much better
10707 than the old method: it now uses a modified version of Ulf's parser to
10708 read the ANSI prototypes in all header files (thus the old K&R definitions
10709 aren't needed for error creation any more) and do a better job of
10710 translating function codes into names. The old 'ASN1 error code imbedded
10711 in a comment' is no longer necessary and it doesn't use .err files which
10712 have now been deleted. Also the error code call doesn't have to appear all
10713 on one line (which resulted in some large lines...).
10716 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
10719 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
10720 0 (which usually indicates a closed connection), but continue reading.
10723 *) Fix some race conditions.
10726 *) Add support for CRL distribution points extension. Add Certificate
10727 Policies and CRL distribution points documentation.
10730 *) Move the autogenerated header file parts to crypto/opensslconf.h.
10733 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
10734 8 of keying material. Merlin has also confirmed interop with this fix
10735 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
10736 [Merlin Hughes <merlin@baltimore.ie>]
10738 *) Fix lots of warnings.
10739 [Richard Levitte <levitte@stacken.kth.se>]
10741 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
10742 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
10743 [Richard Levitte <levitte@stacken.kth.se>]
10745 *) Fix problems with sizeof(long) == 8.
10746 [Andy Polyakov <appro@fy.chalmers.se>]
10748 *) Change functions to ANSI C.
10751 *) Fix typos in error codes.
10752 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
10754 *) Remove defunct assembler files from Configure.
10757 *) SPARC v8 assembler BIGNUM implementation.
10758 [Andy Polyakov <appro@fy.chalmers.se>]
10760 *) Support for Certificate Policies extension: both print and set.
10761 Various additions to support the r2i method this uses.
10764 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
10765 return a const string when you are expecting an allocated buffer.
10768 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
10769 types DirectoryString and DisplayText.
10772 *) Add code to allow r2i extensions to access the configuration database,
10773 add an LHASH database driver and add several ctx helper functions.
10776 *) Fix an evil bug in bn_expand2() which caused various BN functions to
10777 fail when they extended the size of a BIGNUM.
10780 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
10781 support typesafe stack.
10784 *) Fix typo in SSL_[gs]et_options().
10785 [Nils Frostberg <nils@medcom.se>]
10787 *) Delete various functions and files that belonged to the (now obsolete)
10788 old X509V3 handling code.
10791 *) New Configure option "rsaref".
10794 *) Don't auto-generate pem.h.
10797 *) Introduce type-safe ASN.1 SETs.
10800 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
10801 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
10803 *) Introduce type-safe STACKs. This will almost certainly break lots of code
10804 that links with OpenSSL (well at least cause lots of warnings), but fear
10805 not: the conversion is trivial, and it eliminates loads of evil casts. A
10806 few STACKed things have been converted already. Feel free to convert more.
10807 In the fullness of time, I'll do away with the STACK type altogether.
10810 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
10811 specified in <certfile> by updating the entry in the index.txt file.
10812 This way one no longer has to edit the index.txt file manually for
10813 revoking a certificate. The -revoke option does the gory details now.
10814 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
10816 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
10817 `-text' option at all and this way the `-noout -text' combination was
10818 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
10819 [Ralf S. Engelschall]
10821 *) Make sure a corresponding plain text error message exists for the
10822 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
10823 verify callback function determined that a certificate was revoked.
10824 [Ralf S. Engelschall]
10826 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
10827 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
10828 all available cipers including rc5, which was forgotten until now.
10829 In order to let the testing shell script know which algorithms
10830 are available, a new (up to now undocumented) command
10831 "openssl list-cipher-commands" is used.
10834 *) Bugfix: s_client occasionally would sleep in select() when
10835 it should have checked SSL_pending() first.
10838 *) New functions DSA_do_sign and DSA_do_verify to provide access to
10839 the raw DSA values prior to ASN.1 encoding.
10842 *) Tweaks to Configure
10843 [Niels Poppe <niels@netbox.org>]
10845 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
10849 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
10852 *) New config option to avoid instructions that are illegal on the 80386.
10853 The default code is faster, but requires at least a 486.
10856 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
10857 SSL2_SERVER_VERSION (not used at all) macros, which are now the
10858 same as SSL2_VERSION anyway.
10861 *) New "-showcerts" option for s_client.
10864 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
10865 application. Various cleanups and fixes.
10868 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
10869 modify error routines to work internally. Add error codes and PBE init
10870 to library startup routines.
10873 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
10874 packing functions to asn1 and evp. Changed function names and error
10875 codes along the way.
10878 *) PKCS12 integration: and so it begins... First of several patches to
10879 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
10880 objects to objects.h
10883 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
10884 and display support for Thawte strong extranet extension.
10887 *) Add LinuxPPC support.
10888 [Jeff Dubrule <igor@pobox.org>]
10890 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
10891 bn_div_words in alpha.s.
10892 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
10894 *) Make sure the RSA OAEP test is skipped under -DRSAref because
10895 OAEP isn't supported when OpenSSL is built with RSAref.
10896 [Ulf Moeller <ulf@fitug.de>]
10898 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
10899 so they no longer are missing under -DNOPROTO.
10900 [Soren S. Jorvang <soren@t.dk>]
10903 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
10905 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
10906 doesn't work when the session is reused. Coming soon!
10909 *) Fix a security hole, that allows sessions to be reused in the wrong
10910 context thus bypassing client cert protection! All software that uses
10911 client certs and session caches in multiple contexts NEEDS PATCHING to
10912 allow session reuse! A fuller solution is in the works.
10913 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
10915 *) Some more source tree cleanups (removed obsolete files
10916 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
10917 permission on "config" script to be executable) and a fix for the INSTALL
10919 [Ulf Moeller <ulf@fitug.de>]
10921 *) Remove some legacy and erroneous uses of malloc, free instead of
10923 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
10925 *) Make rsa_oaep_test return non-zero on error.
10926 [Ulf Moeller <ulf@fitug.de>]
10928 *) Add support for native Solaris shared libraries. Configure
10929 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
10930 if someone would make that last step automatic.
10931 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
10933 *) ctx_size was not built with the right compiler during "make links". Fixed.
10936 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
10937 except NULL ciphers". This means the default cipher list will no longer
10938 enable NULL ciphers. They need to be specifically enabled e.g. with
10939 the string "DEFAULT:eNULL".
10942 *) Fix to RSA private encryption routines: if p < q then it would
10943 occasionally produce an invalid result. This will only happen with
10944 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
10947 *) Be less restrictive and allow also `perl util/perlpath.pl
10948 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
10949 because this way one can also use an interpreter named `perl5' (which is
10950 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
10951 installed as `perl').
10952 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
10954 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
10955 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
10957 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
10958 advapi32.lib to Win32 build and change the pem test comparison
10959 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
10960 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
10961 and crypto/des/ede_cbcm_enc.c.
10964 *) DES quad checksum was broken on big-endian architectures. Fixed.
10967 *) Comment out two functions in bio.h that aren't implemented. Fix up the
10968 Win32 test batch file so it (might) work again. The Win32 test batch file
10969 is horrible: I feel ill....
10972 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
10973 in e_os.h. Audit of header files to check ANSI and non ANSI
10974 sections: 10 functions were absent from non ANSI section and not exported
10975 from Windows DLLs. Fixed up libeay.num for new functions.
10978 *) Make `openssl version' output lines consistent.
10979 [Ralf S. Engelschall]
10981 *) Fix Win32 symbol export lists for BIO functions: Added
10982 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
10983 to ms/libeay{16,32}.def.
10984 [Ralf S. Engelschall]
10986 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
10987 fine under Unix and passes some trivial tests I've now added. But the
10988 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
10989 added to make sure no one expects that this stuff really works in the
10990 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
10991 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
10993 [Ralf S. Engelschall]
10995 *) Fix the generation of two part addresses in perl.
10996 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
10998 *) Add config entry for Linux on MIPS.
10999 [John Tobey <jtobey@channel1.com>]
11001 *) Make links whenever Configure is run, unless we are on Windoze.
11004 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
11005 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
11009 *) Add a useful kludge to allow package maintainers to specify compiler and
11010 other platforms details on the command line without having to patch the
11011 Configure script everytime: One now can use ``perl Configure
11012 <id>:<details>'', i.e. platform ids are allowed to have details appended
11013 to them (separated by colons). This is treated as there would be a static
11014 pre-configured entry in Configure's %table under key <id> with value
11015 <details> and ``perl Configure <id>'' is called. So, when you want to
11016 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
11017 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
11018 now, which overrides the FreeBSD-elf entry on-the-fly.
11019 [Ralf S. Engelschall]
11021 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
11024 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
11025 on the `perl Configure ...' command line. This way one can compile
11026 OpenSSL libraries with Position Independent Code (PIC) which is needed
11027 for linking it into DSOs.
11028 [Ralf S. Engelschall]
11030 *) Remarkably, export ciphers were totally broken and no-one had noticed!
11034 *) Cleaned up the LICENSE document: The official contact for any license
11035 questions now is the OpenSSL core team under openssl-core@openssl.org.
11036 And add a paragraph about the dual-license situation to make sure people
11037 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
11038 to the OpenSSL toolkit.
11039 [Ralf S. Engelschall]
11041 *) General source tree makefile cleanups: Made `making xxx in yyy...'
11042 display consistent in the source tree and replaced `/bin/rm' by `rm'.
11043 Additionally cleaned up the `make links' target: Remove unnecessary
11044 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
11045 to speed processing and no longer clutter the display with confusing
11046 stuff. Instead only the actually done links are displayed.
11047 [Ralf S. Engelschall]
11049 *) Permit null encryption ciphersuites, used for authentication only. It used
11050 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
11051 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
11055 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
11056 signed attributes when verifying signatures (this would break them),
11057 the detached data encoding was wrong and public keys obtained using
11058 X509_get_pubkey() weren't freed.
11061 *) Add text documentation for the BUFFER functions. Also added a work around
11062 to a Win95 console bug. This was triggered by the password read stuff: the
11063 last character typed gets carried over to the next fread(). If you were
11064 generating a new cert request using 'req' for example then the last
11065 character of the passphrase would be CR which would then enter the first
11069 *) Added the new `Includes OpenSSL Cryptography Software' button as
11070 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
11071 button and can be used by applications based on OpenSSL to show the
11072 relationship to the OpenSSL project.
11073 [Ralf S. Engelschall]
11075 *) Remove confusing variables in function signatures in files
11076 ssl/ssl_lib.c and ssl/ssl.h.
11077 [Lennart Bong <lob@kulthea.stacken.kth.se>]
11079 *) Don't install bss_file.c under PREFIX/include/
11080 [Lennart Bong <lob@kulthea.stacken.kth.se>]
11082 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
11083 functions that return function pointers and has support for NT specific
11084 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
11085 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
11086 unsigned to signed types: this was killing the Win32 compile.
11089 *) Add new certificate file to stack functions,
11090 SSL_add_dir_cert_subjects_to_stack() and
11091 SSL_add_file_cert_subjects_to_stack(). These largely supplant
11092 SSL_load_client_CA_file(), and can be used to add multiple certs easily
11093 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
11094 This means that Apache-SSL and similar packages don't have to mess around
11095 to add as many CAs as they want to the preferred list.
11098 *) Experiment with doxygen documentation. Currently only partially applied to
11100 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
11101 openssl.doxy as the configuration file.
11104 *) Get rid of remaining C++-style comments which strict C compilers hate.
11105 [Ralf S. Engelschall, pointed out by Carlos Amengual]
11107 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
11108 compiled in by default: it has problems with large keys.
11111 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
11112 DH private keys and/or callback functions which directly correspond to
11113 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
11114 is needed for applications which have to configure certificates on a
11115 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
11117 For the RSA certificate situation is makes no difference, but
11118 for the DSA certificate situation this fixes the "no shared cipher"
11119 problem where the OpenSSL cipher selection procedure failed because the
11120 temporary keys were not overtaken from the context and the API provided
11121 no way to reconfigure them.
11122 The new functions now let applications reconfigure the stuff and they
11123 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
11124 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
11125 non-public-API function ssl_cert_instantiate() is used as a helper
11126 function and also to reduce code redundancy inside ssl_rsa.c.
11127 [Ralf S. Engelschall]
11129 *) Move s_server -dcert and -dkey options out of the undocumented feature
11130 area because they are useful for the DSA situation and should be
11131 recognized by the users.
11132 [Ralf S. Engelschall]
11134 *) Fix the cipher decision scheme for export ciphers: the export bits are
11135 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
11136 SSL_EXP_MASK. So, the original variable has to be used instead of the
11137 already masked variable.
11138 [Richard Levitte <levitte@stacken.kth.se>]
11140 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
11141 [Richard Levitte <levitte@stacken.kth.se>]
11143 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
11144 from `int' to `unsigned int' because it's a length and initialized by
11145 EVP_DigestFinal() which expects an `unsigned int *'.
11146 [Richard Levitte <levitte@stacken.kth.se>]
11148 *) Don't hard-code path to Perl interpreter on shebang line of Configure
11149 script. Instead use the usual Shell->Perl transition trick.
11150 [Ralf S. Engelschall]
11152 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
11153 (in addition to RSA certificates) to match the behaviour of `openssl dsa
11154 -noout -modulus' as it's already the case for `openssl rsa -noout
11155 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
11156 currently the public key is printed (a decision which was already done by
11157 `openssl dsa -modulus' in the past) which serves a similar purpose.
11158 Additionally the NO_RSA no longer completely removes the whole -modulus
11159 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
11161 [Ralf S. Engelschall]
11163 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
11164 BIO. See the source (crypto/evp/bio_ok.c) for more info.
11165 [Arne Ansper <arne@ats.cyber.ee>]
11167 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
11168 to be added. Now both 'req' and 'ca' can use new objects defined in the
11172 *) Add cool BIO that does syslog (or event log on NT).
11173 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
11175 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
11176 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
11177 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
11178 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
11181 *) Add preliminary config info for new extension code.
11184 *) Make RSA_NO_PADDING really use no padding.
11185 [Ulf Moeller <ulf@fitug.de>]
11187 *) Generate errors when private/public key check is done.
11190 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
11191 for some CRL extensions and new objects added.
11194 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
11195 key usage extension and fuller support for authority key id.
11198 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
11199 padding method for RSA, which is recommended for new applications in PKCS
11200 #1 v2.0 (RFC 2437, October 1998).
11201 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
11202 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
11203 against Bleichbacher's attack on RSA.
11204 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
11207 *) Updates to the new SSL compression code
11208 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
11210 *) Fix so that the version number in the master secret, when passed
11211 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
11212 (because the server will not accept higher), that the version number
11213 is 0x03,0x01, not 0x03,0x00
11214 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
11216 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
11217 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
11218 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
11221 *) Support for RAW extensions where an arbitrary extension can be
11222 created by including its DER encoding. See apps/openssl.cnf for
11226 *) Make sure latest Perl versions don't interpret some generated C array
11227 code as Perl array code in the crypto/err/err_genc.pl script.
11228 [Lars Weber <3weber@informatik.uni-hamburg.de>]
11230 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
11231 not many people have the assembler. Various Win32 compilation fixes and
11232 update to the INSTALL.W32 file with (hopefully) more accurate Win32
11233 build instructions.
11236 *) Modify configure script 'Configure' to automatically create crypto/date.h
11237 file under Win32 and also build pem.h from pem.org. New script
11238 util/mkfiles.pl to create the MINFO file on environments that can't do a
11239 'make files': perl util/mkfiles.pl >MINFO should work.
11242 *) Major rework of DES function declarations, in the pursuit of correctness
11243 and purity. As a result, many evil casts evaporated, and some weirdness,
11244 too. You may find this causes warnings in your code. Zapping your evil
11245 casts will probably fix them. Mostly.
11248 *) Fix for a typo in asn1.h. Bug fix to object creation script
11249 obj_dat.pl. It considered a zero in an object definition to mean
11250 "end of object": none of the objects in objects.h have any zeros
11251 so it wasn't spotted.
11252 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
11254 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
11255 Masking (CBCM). In the absence of test vectors, the best I have been able
11256 to do is check that the decrypt undoes the encrypt, so far. Send me test
11257 vectors if you have them.
11260 *) Correct calculation of key length for export ciphers (too much space was
11261 allocated for null ciphers). This has not been tested!
11264 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
11265 message is now correct (it understands "crypto" and "ssl" on its
11266 command line). There is also now an "update" option. This will update
11267 the util/ssleay.num and util/libeay.num files with any new functions.
11269 perl util/mkdef.pl crypto ssl update
11270 it will update them.
11273 *) Overhauled the Perl interface (perl/*):
11274 - ported BN stuff to OpenSSL's different BN library
11275 - made the perl/ source tree CVS-aware
11276 - renamed the package from SSLeay to OpenSSL (the files still contain
11277 their history because I've copied them in the repository)
11278 - removed obsolete files (the test scripts will be replaced
11279 by better Test::Harness variants in the future)
11280 [Ralf S. Engelschall]
11282 *) First cut for a very conservative source tree cleanup:
11283 1. merge various obsolete readme texts into doc/ssleay.txt
11284 where we collect the old documents and readme texts.
11285 2. remove the first part of files where I'm already sure that we no
11286 longer need them because of three reasons: either they are just temporary
11287 files which were left by Eric or they are preserved original files where
11288 I've verified that the diff is also available in the CVS via "cvs diff
11289 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
11290 the crypto/md/ stuff).
11291 [Ralf S. Engelschall]
11293 *) More extension code. Incomplete support for subject and issuer alt
11294 name, issuer and authority key id. Change the i2v function parameters
11295 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
11296 what that's for :-) Fix to ASN1 macro which messed up
11297 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
11300 *) Preliminary support for ENUMERATED type. This is largely copied from the
11304 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
11305 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
11307 *) Make sure `make rehash' target really finds the `openssl' program.
11308 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
11310 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
11311 like to hear about it if this slows down other processors.
11314 *) Add CygWin32 platform information to Configure script.
11315 [Alan Batie <batie@aahz.jf.intel.com>]
11317 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
11318 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
11320 *) New program nseq to manipulate netscape certificate sequences
11323 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
11327 *) Fixes to BN code. Previously the default was to define BN_RECURSION
11328 but the BN code had some problems that would cause failures when
11329 doing certificate verification and some other functions.
11330 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
11332 *) Add ASN1 and PEM code to support netscape certificate sequences.
11335 *) Add ASN1 and PEM code to support netscape certificate sequences.
11338 *) Add several PKIX and private extended key usage OIDs.
11341 *) Modify the 'ca' program to handle the new extension code. Modify
11342 openssl.cnf for new extension format, add comments.
11345 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
11346 and add a sample to openssl.cnf so req -x509 now adds appropriate
11350 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
11351 error code, add initial support to X509_print() and x509 application.
11354 *) Takes a deep breath and start adding X509 V3 extension support code. Add
11355 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
11356 stuff is currently isolated and isn't even compiled yet.
11359 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
11360 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
11361 Removed the versions check from X509 routines when loading extensions:
11362 this allows certain broken certificates that don't set the version
11363 properly to be processed.
11366 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
11367 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
11368 can still be regenerated with "make depend".
11371 *) Spelling mistake in C version of CAST-128.
11372 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
11374 *) Changes to the error generation code. The perl script err-code.pl
11375 now reads in the old error codes and retains the old numbers, only
11376 adding new ones if necessary. It also only changes the .err files if new
11377 codes are added. The makefiles have been modified to only insert errors
11378 when needed (to avoid needlessly modifying header files). This is done
11379 by only inserting errors if the .err file is newer than the auto generated
11380 C file. To rebuild all the error codes from scratch (the old behaviour)
11381 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
11382 or delete all the .err files.
11385 *) CAST-128 was incorrectly implemented for short keys. The C version has
11386 been fixed, but is untested. The assembler versions are also fixed, but
11387 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
11388 to regenerate it if needed.
11389 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
11390 Hagino <itojun@kame.net>]
11392 *) File was opened incorrectly in randfile.c.
11393 [Ulf Möller <ulf@fitug.de>]
11395 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
11396 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
11397 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
11398 al: it's just almost always a UTCTime. Note this patch adds new error
11399 codes so do a "make errors" if there are problems.
11402 *) Correct Linux 1 recognition in config.
11403 [Ulf Möller <ulf@fitug.de>]
11405 *) Remove pointless MD5 hash when using DSA keys in ca.
11406 [Anonymous <nobody@replay.com>]
11408 *) Generate an error if given an empty string as a cert directory. Also
11409 generate an error if handed NULL (previously returned 0 to indicate an
11410 error, but didn't set one).
11411 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
11413 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
11416 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
11417 parameters. This was causing a warning which killed off the Win32 compile.
11420 *) Remove C++ style comments from crypto/bn/bn_local.h.
11421 [Neil Costigan <neil.costigan@celocom.com>]
11423 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
11424 based on a text string, looking up short and long names and finally
11425 "dot" format. The "dot" format stuff didn't work. Added new function
11426 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
11427 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
11428 OID is not part of the table.
11431 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
11432 X509_LOOKUP_by_alias().
11435 *) Sort openssl functions by name.
11438 *) Get the gendsa program working (hopefully) and add it to app list. Remove
11439 encryption from sample DSA keys (in case anyone is interested the password
11443 *) Make _all_ *_free functions accept a NULL pointer.
11444 [Frans Heymans <fheymans@isaserver.be>]
11446 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
11448 [Anonymous <nobody@replay.com>]
11450 *) s_server should send the CAfile as acceptable CAs, not its own cert.
11451 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
11453 *) Don't blow it for numeric -newkey arguments to apps/req.
11454 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
11456 *) Temp key "for export" tests were wrong in s3_srvr.c.
11457 [Anonymous <nobody@replay.com>]
11459 *) Add prototype for temp key callback functions
11460 SSL_CTX_set_tmp_{rsa,dh}_callback().
11463 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
11464 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
11467 *) X509_name_add_entry() freed the wrong thing after an error.
11468 [Arne Ansper <arne@ats.cyber.ee>]
11470 *) rsa_eay.c would attempt to free a NULL context.
11471 [Arne Ansper <arne@ats.cyber.ee>]
11473 *) BIO_s_socket() had a broken should_retry() on Windoze.
11474 [Arne Ansper <arne@ats.cyber.ee>]
11476 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
11477 [Arne Ansper <arne@ats.cyber.ee>]
11479 *) Make sure the already existing X509_STORE->depth variable is initialized
11480 in X509_STORE_new(), but document the fact that this variable is still
11481 unused in the certificate verification process.
11482 [Ralf S. Engelschall]
11484 *) Fix the various library and apps files to free up pkeys obtained from
11485 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
11488 *) Fix reference counting in X509_PUBKEY_get(). This makes
11489 demos/maurice/example2.c work, amongst others, probably.
11490 [Steve Henson and Ben Laurie]
11492 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
11493 `openssl' and second, the shortcut symlinks for the `openssl <command>'
11494 are no longer created. This way we have a single and consistent command
11495 line interface `openssl <command>', similar to `cvs <command>'.
11496 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
11498 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
11499 BIT STRING wrapper always have zero unused bits.
11502 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
11505 *) Make the top-level INSTALL documentation easier to understand.
11508 *) Makefiles updated to exit if an error occurs in a sub-directory
11509 make (including if user presses ^C) [Paul Sutton]
11511 *) Make Montgomery context stuff explicit in RSA data structure.
11514 *) Fix build order of pem and err to allow for generated pem.h.
11517 *) Fix renumbering bug in X509_NAME_delete_entry().
11520 *) Enhanced the err-ins.pl script so it makes the error library number
11521 global and can add a library name. This is needed for external ASN1 and
11522 other error libraries.
11525 *) Fixed sk_insert which never worked properly.
11528 *) Fix ASN1 macros so they can handle indefinite length constructed
11529 EXPLICIT tags. Some non standard certificates use these: they can now
11533 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
11534 into a single doc/ssleay.txt bundle. This way the information is still
11535 preserved but no longer messes up this directory. Now it's new room for
11536 the new set of documentation files.
11537 [Ralf S. Engelschall]
11539 *) SETs were incorrectly DER encoded. This was a major pain, because they
11540 shared code with SEQUENCEs, which aren't coded the same. This means that
11541 almost everything to do with SETs or SEQUENCEs has either changed name or
11542 number of arguments.
11543 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
11545 *) Fix test data to work with the above.
11548 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
11549 was already fixed by Eric for 0.9.1 it seems.
11550 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
11552 *) Autodetect FreeBSD3.
11555 *) Fix various bugs in Configure. This affects the following platforms:
11559 unixware-2.0-pentium
11563 *) Eliminate generated files from CVS. Reorder tests to regenerate files
11564 before they are needed.
11567 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
11571 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
11573 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
11574 changed SSLeay to OpenSSL in version strings.
11575 [Ralf S. Engelschall]
11577 *) Some fixups to the top-level documents.
11580 *) Fixed the nasty bug where rsaref.h was not found under compile-time
11581 because the symlink to include/ was missing.
11582 [Ralf S. Engelschall]
11584 *) Incorporated the popular no-RSA/DSA-only patches
11585 which allow to compile a RSA-free SSLeay.
11586 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
11588 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
11589 when "ssleay" is still not found.
11590 [Ralf S. Engelschall]
11592 *) Added more platforms to Configure: Cray T3E, HPUX 11,
11593 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
11595 *) Updated the README file.
11596 [Ralf S. Engelschall]
11598 *) Added various .cvsignore files in the CVS repository subdirs
11599 to make a "cvs update" really silent.
11600 [Ralf S. Engelschall]
11602 *) Recompiled the error-definition header files and added
11603 missing symbols to the Win32 linker tables.
11604 [Ralf S. Engelschall]
11606 *) Cleaned up the top-level documents;
11607 o new files: CHANGES and LICENSE
11608 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
11609 o merged COPYRIGHT into LICENSE
11610 o removed obsolete TODO file
11611 o renamed MICROSOFT to INSTALL.W32
11612 [Ralf S. Engelschall]
11614 *) Removed dummy files from the 0.9.1b source tree:
11615 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
11616 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
11617 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
11618 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
11619 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
11620 [Ralf S. Engelschall]
11622 *) Added various platform portability fixes.
11625 *) The Genesis of the OpenSSL rpject:
11626 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
11627 Young and Tim J. Hudson created while they were working for C2Net until
11629 [The OpenSSL Project]
11632 Changes between 0.9.0b and 0.9.1b [not released]
11634 *) Updated a few CA certificates under certs/
11637 *) Changed some BIGNUM api stuff.
11640 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
11641 DGUX x86, Linux Alpha, etc.
11644 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
11645 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
11649 *) Add -strparse option to asn1pars program which parses nested
11651 [Dr Stephen Henson <shenson@bigfoot.com>]
11653 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
11656 *) DSA fix for "ca" program.
11659 *) Added "-genkey" option to "dsaparam" program.
11662 *) Added RIPE MD160 (rmd160) message digest.
11665 *) Added -a (all) option to "ssleay version" command.
11668 *) Added PLATFORM define which is the id given to Configure.
11671 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
11674 *) Extended the ASN.1 parser routines.
11677 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
11680 *) Added a BN_CTX to the BN library.
11683 *) Fixed the weak key values in DES library
11686 *) Changed API in EVP library for cipher aliases.
11689 *) Added support for RC2/64bit cipher.
11692 *) Converted the lhash library to the crypto/mem.c functions.
11695 *) Added more recognized ASN.1 object ids.
11698 *) Added more RSA padding checks for SSL/TLS.
11701 *) Added BIO proxy/filter functionality.
11704 *) Added extra_certs to SSL_CTX which can be used
11705 send extra CA certificates to the client in the CA cert chain sending
11706 process. It can be configured with SSL_CTX_add_extra_chain_cert().
11709 *) Now Fortezza is denied in the authentication phase because
11710 this is key exchange mechanism is not supported by SSLeay at all.
11713 *) Additional PKCS1 checks.
11716 *) Support the string "TLSv1" for all TLS v1 ciphers.
11719 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
11720 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
11723 *) Fixed a few memory leaks.
11726 *) Fixed various code and comment typos.
11729 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
11730 bytes sent in the client random.
11731 [Edward Bishop <ebishop@spyglass.com>]