5 Changes between 1.0.2f and 1.1.0 [xx XXX xxxx]
7 *) RSA_padding_check_PKCS1_type_1 now accepts inputs with and without
11 *) CRIME protection: disable compression by default, even if OpenSSL is
12 compiled with zlib enabled. Applications can still enable compression
13 by calling SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION), or by
14 using the SSL_CONF library to configure compression.
17 *) The signature of the session callback configured with
18 SSL_CTX_sess_set_get_cb was changed. The read-only input buffer
19 was explicitly marked as 'const unsigned char*' instead of
23 *) Always DPURIFY. Remove the use of uninitialized memory in the
24 RNG, and other conditional uses of DPURIFY. This makes -DPURIFY a no-op.
27 *) Removed many obsolete configuration items, including
28 DES_PTR, DES_RISC1, DES_RISC2, DES_INT
29 MD2_CHAR, MD2_INT, MD2_LONG
32 RC2_SHORT, RC2_LONG, RC4_LONG, RC4_CHUNK, RC4_INDEX
33 [Rich Salz, with advice from Andy Polyakov]
35 *) Many BN internals have been moved to an internal header file.
36 [Rich Salz with help from Andy Polyakov]
38 *) Configuration and writing out the results from it has changed.
39 Files such as Makefile include/openssl/opensslconf.h and are now
40 produced through general templates, such as Makefile.in and
41 crypto/opensslconf.h.in and some help from the perl module
44 Also, the center of configuration information is no longer
45 Makefile. Instead, Configure produces a perl module in
46 configdata.pm which holds most of the config data (in the hash
47 table %config), the target data that comes from the target
48 configuration in one of the Configurations/*.conf files (in
52 *) To clarify their intended purposes, the Configure options
53 --prefix and --openssldir change their semantics, and become more
54 straightforward and less interdependent.
56 --prefix shall be used exclusively to give the location INSTALLTOP
57 where programs, scripts, libraries, include files and manuals are
58 going to be installed. The default is now /usr/local.
60 --openssldir shall be used exclusively to give the default
61 location OPENSSLDIR where certificates, private keys, CRLs are
62 managed. This is also where the default openssl.cnf gets
64 If the directory given with this option is a relative path, the
65 values of both the --prefix value and the --openssldir value will
66 be combined to become OPENSSLDIR.
67 The default for --openssldir is INSTALLTOP/ssl.
69 Anyone who uses --openssldir to specify where OpenSSL is to be
70 installed MUST change to use --prefix instead.
73 *) The GOST engine was out of date and therefore it has been removed. An up
74 to date GOST engine is now being maintained in an external repository.
75 See: https://wiki.openssl.org/index.php/Binaries. Libssl still retains
76 support for GOST ciphersuites (these are only activated if a GOST engine
80 *) EGD is no longer supported by default; use enable-egd when
82 [Ben Kaduk and Rich Salz]
84 *) The distribution now has Makefile.in files, which are used to
85 create Makefile's when Configure is run. *Configure must be run
86 before trying to build now.*
89 *) The return value for SSL_CIPHER_description() for error conditions
93 *) Support for RFC6698/RFC7671 DANE TLSA peer authentication.
95 Obtaining and performing DNSSEC validation of TLSA records is
96 the application's responsibility. The application provides
97 the TLSA records of its choice to OpenSSL, and these are then
98 used to authenticate the peer.
100 The TLSA records need not even come from DNS. They can, for
101 example, be used to implement local end-entity certificate or
102 trust-anchor "pinning", where the "pin" data takes the form
103 of TLSA records, which can augment or replace verification
104 based on the usual WebPKI public certification authorities.
107 *) Revert default OPENSSL_NO_DEPRECATED setting. Instead OpenSSL
108 continues to support deprecated interfaces in default builds.
109 However, applications are strongly advised to compile their
110 source files with -DOPENSSL_API_COMPAT=0x10100000L, which hides
111 the declarations of all interfaces deprecated in 0.9.8, 1.0.0
112 or the 1.1.0 releases.
114 In environments in which all applications have been ported to
115 not use any deprecated interfaces OpenSSL's Configure script
116 should be used with the --api=1.1.0 option to entirely remove
117 support for the deprecated features from the library and
118 unconditionally disable them in the installed headers.
119 Essentially the same effect can be achieved with the "no-deprecated"
120 argument to Configure, except that this will always restrict
121 the build to just the latest API, rather than a fixed API
124 As applications are ported to future revisions of the API,
125 they should update their compile-time OPENSSL_API_COMPAT define
126 accordingly, but in most cases should be able to continue to
127 compile with later releases.
129 The OPENSSL_API_COMPAT versions for 1.0.0, and 0.9.8 are
130 0x10000000L and 0x00908000L, respectively. However those
131 versions did not support the OPENSSL_API_COMPAT feature, and
132 so applications are not typically tested for explicit support
133 of just the undeprecated features of either release.
136 *) Add support for setting the minimum and maximum supported protocol.
137 It can bet set via the SSL_set_min_proto_version() and
138 SSL_set_max_proto_version(), or via the SSL_CONF's MinProtocol and
139 MaxProtcol. It's recommended to use the new APIs to disable
140 protocols instead of disabling individual protocols using
141 SSL_set_options() or SSL_CONF's Protocol. This change also
142 removes support for disabling TLS 1.2 in the OpenSSL TLS
143 client at compile time by defining OPENSSL_NO_TLS1_2_CLIENT.
146 *) Support for ChaCha20 and Poly1305 added to libcrypto and libssl.
149 *) New EC_KEY_METHOD, this replaces the older ECDSA_METHOD and ECDH_METHOD
150 and integrates ECDSA and ECDH functionality into EC. Implementations can
151 now redirect key generation and no longer need to convert to or from
154 Note: the ecdsa.h and ecdh.h headers are now no longer needed and just
155 include the ec.h header file instead.
158 *) Remove support for all 40 and 56 bit ciphers. This includes all the export
159 ciphers who are no longer supported and drops support the ephemeral RSA key
160 exchange. The LOW ciphers currently doesn't have any ciphers in it.
163 *) Made EVP_MD_CTX, EVP_MD, EVP_CIPHER_CTX, EVP_CIPHER and HMAC_CTX
164 opaque. For HMAC_CTX, the following constructors and destructors
167 HMAC_CTX *HMAC_CTX_new(void);
168 void HMAC_CTX_free(HMAC_CTX *ctx);
170 For EVP_MD and EVP_CIPHER, complete APIs to create, fill and
171 destroy such methods has been added. See EVP_MD_meth_new(3) and
172 EVP_CIPHER_meth_new(3) for documentation.
175 1) EVP_MD_CTX_cleanup(), EVP_CIPHER_CTX_cleanup() and
176 HMAC_CTX_cleanup() were removed. HMAC_CTX_reset() and
177 EVP_MD_CTX_reset() should be called instead to reinitialise
178 an already created structure.
179 2) For consistency with the majority of our object creators and
180 destructors, EVP_MD_CTX_(create|destroy) were renamed to
181 EVP_MD_CTX_(new|free). The old names are retained as macros
182 for deprecated builds.
185 *) Added ASYNC support. Libcrypto now includes the async sub-library to enable
186 cryptographic operations to be performed asynchronously as long as an
187 asynchronous capable engine is used. See the ASYNC_start_job() man page for
188 further details. Libssl has also had this capability integrated with the
189 introduction of the new mode SSL_MODE_ASYNC and associated error
190 SSL_ERROR_WANT_ASYNC. See the SSL_CTX_set_mode() and SSL_get_error() man
191 pages. This work was developed in partnership with Intel Corp.
194 *) SSL_{CTX_}set_ecdh_auto() has been removed and ECDH is support is
195 always enabled now. If you want to disable the support you should
196 exclude it using the list of supported ciphers. This also means that the
197 "-no_ecdhe" option has been removed from s_server.
200 *) SSL_{CTX}_set_tmp_ecdh() which can set 1 EC curve now internally calls
201 SSL_{CTX_}set1_curves() which can set a list.
204 *) Remove support for SSL_{CTX_}set_tmp_ecdh_callback(). You should set the
205 curve you want to support using SSL_{CTX_}set1_curves().
208 *) State machine rewrite. The state machine code has been significantly
209 refactored in order to remove much duplication of code and solve issues
210 with the old code (see ssl/statem/README for further details). This change
211 does have some associated API changes. Notably the SSL_state() function
212 has been removed and replaced by SSL_get_state which now returns an
213 "OSSL_HANDSHAKE_STATE" instead of an int. SSL_set_state() has been removed
214 altogether. The previous handshake states defined in ssl.h and ssl3.h have
218 *) All instances of the string "ssleay" in the public API were replaced
219 with OpenSSL (case-matching; e.g., OPENSSL_VERSION for #define's)
220 Some error codes related to internal RSA_eay API's were renamed.
223 *) The demo files in crypto/threads were moved to demo/threads.
226 *) Removed obsolete engines: 4758cca, aep, atalla, cswift, nuron, gmp,
228 [Matt Caswell, Rich Salz]
230 *) New ASN.1 embed macro.
232 New ASN.1 macro ASN1_EMBED. This is the same as ASN1_SIMPLE except the
233 structure is not allocated: it is part of the parent. That is instead of
241 This reduces memory fragmentation and make it impossible to accidentally
242 set a mandatory field to NULL.
244 This currently only works for some fields specifically a SEQUENCE, CHOICE,
245 or ASN1_STRING type which is part of a parent SEQUENCE. Since it is
246 equivalent to ASN1_SIMPLE it cannot be tagged, OPTIONAL, SET OF or
250 *) Remove EVP_CHECK_DES_KEY, a compile-time option that never compiled.
253 *) Removed DES and RC4 ciphersuites from DEFAULT. Also removed RC2 although
254 in 1.0.2 EXPORT was already removed and the only RC2 ciphersuite is also
255 an EXPORT one. COMPLEMENTOFDEFAULT has been updated accordingly to add
256 DES and RC4 ciphersuites.
259 *) Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs.
260 This changes the decoding behaviour for some invalid messages,
261 though the change is mostly in the more lenient direction, and
262 legacy behaviour is preserved as much as possible.
265 *) Fix no-stdio build.
266 [ David Woodhouse <David.Woodhouse@intel.com> and also
267 Ivan Nestlerode <ivan.nestlerode@sonos.com> ]
269 *) New testing framework
270 The testing framework has been largely rewritten and is now using
271 perl and the perl modules Test::Harness and an extended variant of
272 Test::More called OpenSSL::Test to do its work. All test scripts in
273 test/ have been rewritten into test recipes, and all direct calls to
274 executables in test/Makefile have become individual recipes using the
275 simplified testing OpenSSL::Test::Simple.
277 For documentation on our testing modules, do:
279 perldoc test/testlib/OpenSSL/Test/Simple.pm
280 perldoc test/testlib/OpenSSL/Test.pm
284 *) Revamped memory debug; only -DCRYPTO_MDEBUG and -DCRYPTO_MDEBUG_ABORT
285 are used; the latter aborts on memory leaks (usually checked on exit).
286 Some undocumented "set malloc, etc., hooks" functions were removed
287 and others were changed. All are now documented.
290 *) In DSA_generate_parameters_ex, if the provided seed is too short,
292 [Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>]
294 *) Rewrite PSK to support ECDHE_PSK, DHE_PSK and RSA_PSK. Add ciphersuites
295 from RFC4279, RFC4785, RFC5487, RFC5489.
297 Thanks to Christian J. Dietrich and Giuseppe D'Angelo for the
298 original RSA_PSK patch.
301 *) Dropped support for the SSL3_FLAGS_DELAY_CLIENT_FINISHED flag. This SSLeay
302 era flag was never set throughout the codebase (only read). Also removed
303 SSL3_FLAGS_POP_BUFFER which was only used if
304 SSL3_FLAGS_DELAY_CLIENT_FINISHED was also set.
307 *) Changed the default name options in the "ca", "crl", "req" and "x509"
308 to be "oneline" instead of "compat".
311 *) Remove SSL_OP_TLS_BLOCK_PADDING_BUG. This is SSLeay legacy, we're
312 not aware of clients that still exhibit this bug, and the workaround
313 hasn't been working properly for a while.
316 *) The return type of BIO_number_read() and BIO_number_written() as well as
317 the corresponding num_read and num_write members in the BIO structure has
318 changed from unsigned long to uint64_t. On platforms where an unsigned
319 long is 32 bits (e.g. Windows) these counters could overflow if >4Gb is
323 *) Given the pervasive nature of TLS extensions it is inadvisable to run
324 OpenSSL without support for them. It also means that maintaining
325 the OPENSSL_NO_TLSEXT option within the code is very invasive (and probably
326 not well tested). Therefore the OPENSSL_NO_TLSEXT option has been removed.
329 *) Removed support for the two export grade static DH ciphersuites
330 EXP-DH-RSA-DES-CBC-SHA and EXP-DH-DSS-DES-CBC-SHA. These two ciphersuites
331 were newly added (along with a number of other static DH ciphersuites) to
332 1.0.2. However the two export ones have *never* worked since they were
333 introduced. It seems strange in any case to be adding new export
334 ciphersuites, and given "logjam" it also does not seem correct to fix them.
337 *) Version negotiation has been rewritten. In particular SSLv23_method(),
338 SSLv23_client_method() and SSLv23_server_method() have been deprecated,
339 and turned into macros which simply call the new preferred function names
340 TLS_method(), TLS_client_method() and TLS_server_method(). All new code
341 should use the new names instead. Also as part of this change the ssl23.h
342 header file has been removed.
345 *) Support for Kerberos ciphersuites in TLS (RFC2712) has been removed. This
346 code and the associated standard is no longer considered fit-for-purpose.
349 *) RT2547 was closed. When generating a private key, try to make the
350 output file readable only by the owner. This behavior change might
351 be noticeable when interacting with other software.
353 *) Documented all exdata functions. Added CRYPTO_free_ex_index.
357 *) Added HTTP GET support to the ocsp command.
360 *) Changed default digest for the dgst and enc commands from MD5 to
364 *) RAND_pseudo_bytes has been deprecated. Users should use RAND_bytes instead.
367 *) Added support for TLS extended master secret from
368 draft-ietf-tls-session-hash-03.txt. Thanks for Alfredo Pironti for an
369 initial patch which was a great help during development.
372 *) All libssl internal structures have been removed from the public header
373 files, and the OPENSSL_NO_SSL_INTERN option has been removed (since it is
374 now redundant). Users should not attempt to access internal structures
375 directly. Instead they should use the provided API functions.
378 *) config has been changed so that by default OPENSSL_NO_DEPRECATED is used.
379 Access to deprecated functions can be re-enabled by running config with
380 "enable-deprecated". In addition applications wishing to use deprecated
381 functions must define OPENSSL_USE_DEPRECATED. Note that this new behaviour
382 will, by default, disable some transitive includes that previously existed
383 in the header files (e.g. ec.h will no longer, by default, include bn.h)
386 *) Added support for OCB mode. OpenSSL has been granted a patent license
387 compatible with the OpenSSL license for use of OCB. Details are available
388 at https://www.openssl.org/source/OCB-patent-grant-OpenSSL.pdf. Support
389 for OCB can be removed by calling config with no-ocb.
392 *) SSLv2 support has been removed. It still supports receiving a SSLv2
393 compatible client hello.
396 *) Increased the minimal RSA keysize from 256 to 512 bits [Rich Salz],
397 done while fixing the error code for the key-too-small case.
398 [Annie Yousar <a.yousar@informatik.hu-berlin.de>]
400 *) CA.sh has been removmed; use CA.pl instead.
403 *) Removed old DES API.
406 *) Remove various unsupported platforms:
412 Sinix/ReliantUNIX RM400
417 16-bit platforms such as WIN16
420 *) Clean up OPENSSL_NO_xxx #define's
421 Use setbuf() and remove OPENSSL_NO_SETVBUF_IONBF
422 Rename OPENSSL_SYSNAME_xxx to OPENSSL_SYS_xxx
423 OPENSSL_NO_EC{DH,DSA} merged into OPENSSL_NO_EC
424 OPENSSL_NO_RIPEMD160, OPENSSL_NO_RIPEMD merged into OPENSSL_NO_RMD160
425 OPENSSL_NO_FP_API merged into OPENSSL_NO_STDIO
426 Remove OPENSSL_NO_BIO OPENSSL_NO_BUFFER OPENSSL_NO_CHAIN_VERIFY
427 OPENSSL_NO_EVP OPENSSL_NO_FIPS_ERR OPENSSL_NO_HASH_COMP
428 OPENSSL_NO_LHASH OPENSSL_NO_OBJECT OPENSSL_NO_SPEED OPENSSL_NO_STACK
429 OPENSSL_NO_X509 OPENSSL_NO_X509_VERIFY
430 Remove MS_STATIC; it's a relic from platforms <32 bits.
433 *) Cleaned up dead code
434 Remove all but one '#ifdef undef' which is to be looked at.
437 *) Clean up calling of xxx_free routines.
438 Just like free(), fix most of the xxx_free routines to accept
439 NULL. Remove the non-null checks from callers. Save much code.
442 *) Add secure heap for storage of private keys (when possible).
443 Add BIO_s_secmem(), CBIGNUM, etc.
444 Contributed by Akamai Technologies under our Corporate CLA.
447 *) Experimental support for a new, fast, unbiased prime candidate generator,
448 bn_probable_prime_dh_coprime(). Not currently used by any prime generator.
449 [Felix Laurie von Massenbach <felix@erbridge.co.uk>]
451 *) New output format NSS in the sess_id command line tool. This allows
452 exporting the session id and the master key in NSS keylog format.
453 [Martin Kaiser <martin@kaiser.cx>]
455 *) Harmonize version and its documentation. -f flag is used to display
457 [mancha <mancha1@zoho.com>]
459 *) Fix eckey_priv_encode so it immediately returns an error upon a failure
460 in i2d_ECPrivateKey. Thanks to Ted Unangst for feedback on this issue.
461 [mancha <mancha1@zoho.com>]
463 *) Fix some double frees. These are not thought to be exploitable.
464 [mancha <mancha1@zoho.com>]
466 *) A missing bounds check in the handling of the TLS heartbeat extension
467 can be used to reveal up to 64k of memory to a connected client or
470 Thanks for Neel Mehta of Google Security for discovering this bug and to
471 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for
472 preparing the fix (CVE-2014-0160)
473 [Adam Langley, Bodo Moeller]
475 *) Fix for the attack described in the paper "Recovering OpenSSL
476 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack"
477 by Yuval Yarom and Naomi Benger. Details can be obtained from:
478 http://eprint.iacr.org/2014/140
480 Thanks to Yuval Yarom and Naomi Benger for discovering this
481 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076)
482 [Yuval Yarom and Naomi Benger]
484 *) Use algorithm specific chains in SSL_CTX_use_certificate_chain_file():
485 this fixes a limitation in previous versions of OpenSSL.
488 *) Experimental encrypt-then-mac support.
490 Experimental support for encrypt then mac from
491 draft-gutmann-tls-encrypt-then-mac-02.txt
493 To enable it set the appropriate extension number (0x42 for the test
494 server) using e.g. -DTLSEXT_TYPE_encrypt_then_mac=0x42
496 For non-compliant peers (i.e. just about everything) this should have no
499 WARNING: EXPERIMENTAL, SUBJECT TO CHANGE.
503 *) Add EVP support for key wrapping algorithms, to avoid problems with
504 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in
505 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap
506 algorithms and include tests cases.
509 *) Extend CMS code to support RSA-PSS signatures and RSA-OAEP for
513 *) Extended RSA OAEP support via EVP_PKEY API. Options to specify digest,
514 MGF1 digest and OAEP label.
517 *) Make openssl verify return errors.
518 [Chris Palmer <palmer@google.com> and Ben Laurie]
520 *) New function ASN1_TIME_diff to calculate the difference between two
521 ASN1_TIME structures or one structure and the current time.
524 *) Update fips_test_suite to support multiple command line options. New
525 test to induce all self test errors in sequence and check expected
529 *) Add FIPS_{rsa,dsa,ecdsa}_{sign,verify} functions which digest and
530 sign or verify all in one operation.
533 *) Add fips_algvs: a multicall fips utility incorporating all the algorithm
534 test programs and fips_test_suite. Includes functionality to parse
535 the minimal script output of fipsalgest.pl directly.
538 *) Add authorisation parameter to FIPS_module_mode_set().
541 *) Add FIPS selftest for ECDH algorithm using P-224 and B-233 curves.
544 *) Use separate DRBG fields for internal and external flags. New function
545 FIPS_drbg_health_check() to perform on demand health checking. Add
546 generation tests to fips_test_suite with reduced health check interval to
547 demonstrate periodic health checking. Add "nodh" option to
548 fips_test_suite to skip very slow DH test.
551 *) New function FIPS_get_cipherbynid() to lookup FIPS supported ciphers
555 *) More extensive health check for DRBG checking many more failure modes.
556 New function FIPS_selftest_drbg_all() to handle every possible DRBG
557 combination: call this in fips_test_suite.
560 *) Add support for Dual EC DRBG from SP800-90. Update DRBG algorithm test
561 and POST to handle Dual EC cases.
564 *) Add support for canonical generation of DSA parameter 'g'. See
567 *) Add support for HMAC DRBG from SP800-90. Update DRBG algorithm test and
568 POST to handle HMAC cases.
571 *) Add functions FIPS_module_version() and FIPS_module_version_text()
572 to return numerical and string versions of the FIPS module number.
575 *) Rename FIPS_mode_set and FIPS_mode to FIPS_module_mode_set and
576 FIPS_module_mode. FIPS_mode and FIPS_mode_set will be implemented
577 outside the validated module in the FIPS capable OpenSSL.
580 *) Minor change to DRBG entropy callback semantics. In some cases
581 there is no multiple of the block length between min_len and
582 max_len. Allow the callback to return more than max_len bytes
583 of entropy but discard any extra: it is the callback's responsibility
584 to ensure that the extra data discarded does not impact the
585 requested amount of entropy.
588 *) Add PRNG security strength checks to RSA, DSA and ECDSA using
589 information in FIPS186-3, SP800-57 and SP800-131A.
592 *) CCM support via EVP. Interface is very similar to GCM case except we
593 must supply all data in one chunk (i.e. no update, final) and the
594 message length must be supplied if AAD is used. Add algorithm test
598 *) Initial version of POST overhaul. Add POST callback to allow the status
599 of POST to be monitored and/or failures induced. Modify fips_test_suite
600 to use callback. Always run all selftests even if one fails.
603 *) XTS support including algorithm test driver in the fips_gcmtest program.
604 Note: this does increase the maximum key length from 32 to 64 bytes but
605 there should be no binary compatibility issues as existing applications
606 will never use XTS mode.
609 *) Extensive reorganisation of FIPS PRNG behaviour. Remove all dependencies
610 to OpenSSL RAND code and replace with a tiny FIPS RAND API which also
611 performs algorithm blocking for unapproved PRNG types. Also do not
612 set PRNG type in FIPS_mode_set(): leave this to the application.
613 Add default OpenSSL DRBG handling: sets up FIPS PRNG and seeds with
614 the standard OpenSSL PRNG: set additional data to a date time vector.
617 *) Rename old X9.31 PRNG functions of the form FIPS_rand* to FIPS_x931*.
618 This shouldn't present any incompatibility problems because applications
619 shouldn't be using these directly and any that are will need to rethink
620 anyway as the X9.31 PRNG is now deprecated by FIPS 140-2
623 *) Extensive self tests and health checking required by SP800-90 DRBG.
624 Remove strength parameter from FIPS_drbg_instantiate and always
625 instantiate at maximum supported strength.
628 *) Add ECDH code to fips module and fips_ecdhvs for primitives only testing.
631 *) New algorithm test program fips_dhvs to handle DH primitives only testing.
634 *) New function DH_compute_key_padded() to compute a DH key and pad with
635 leading zeroes if needed: this complies with SP800-56A et al.
638 *) Initial implementation of SP800-90 DRBGs for Hash and CTR. Not used by
639 anything, incomplete, subject to change and largely untested at present.
642 *) Modify fipscanisteronly build option to only build the necessary object
643 files by filtering FIPS_EX_OBJ through a perl script in crypto/Makefile.
646 *) Add experimental option FIPSSYMS to give all symbols in
647 fipscanister.o and FIPS or fips prefix. This will avoid
648 conflicts with future versions of OpenSSL. Add perl script
649 util/fipsas.pl to preprocess assembly language source files
650 and rename any affected symbols.
653 *) Add selftest checks and algorithm block of non-fips algorithms in
654 FIPS mode. Remove DES2 from selftests.
657 *) Add ECDSA code to fips module. Add tiny fips_ecdsa_check to just
658 return internal method without any ENGINE dependencies. Add new
659 tiny fips sign and verify functions.
662 *) New build option no-ec2m to disable characteristic 2 code.
665 *) New build option "fipscanisteronly". This only builds fipscanister.o
666 and (currently) associated fips utilities. Uses the file Makefile.fips
667 instead of Makefile.org as the prototype.
670 *) Add some FIPS mode restrictions to GCM. Add internal IV generator.
671 Update fips_gcmtest to use IV generator.
674 *) Initial, experimental EVP support for AES-GCM. AAD can be input by
675 setting output buffer to NULL. The *Final function must be
676 called although it will not retrieve any additional data. The tag
677 can be set or retrieved with a ctrl. The IV length is by default 12
678 bytes (96 bits) but can be set to an alternative value. If the IV
679 length exceeds the maximum IV length (currently 16 bytes) it cannot be
683 *) New flag in ciphers: EVP_CIPH_FLAG_CUSTOM_CIPHER. This means the
684 underlying do_cipher function handles all cipher semantics itself
685 including padding and finalisation. This is useful if (for example)
686 an ENGINE cipher handles block padding itself. The behaviour of
687 do_cipher is subtly changed if this flag is set: the return value
688 is the number of characters written to the output buffer (zero is
689 no longer an error code) or a negative error code. Also if the
690 input buffer is NULL and length 0 finalisation should be performed.
693 *) If a candidate issuer certificate is already part of the constructed
694 path ignore it: new debug notification X509_V_ERR_PATH_LOOP for this case.
697 *) Improve forward-security support: add functions
699 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure))
700 void SSL_set_not_resumable_session_callback(SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure))
702 for use by SSL/TLS servers; the callback function will be called whenever a
703 new session is created, and gets to decide whether the session may be
704 cached to make it resumable (return 0) or not (return 1). (As by the
705 SSL/TLS protocol specifications, the session_id sent by the server will be
706 empty to indicate that the session is not resumable; also, the server will
707 not generate RFC 4507 (RFC 5077) session tickets.)
709 A simple reasonable callback implementation is to return is_forward_secure.
710 This parameter will be set to 1 or 0 depending on the ciphersuite selected
711 by the SSL/TLS server library, indicating whether it can provide forward
713 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
715 *) New -verify_name option in command line utilities to set verification
719 *) Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE.
720 Add CMAC pkey methods.
723 *) Experimental renegotiation in s_server -www mode. If the client
724 browses /reneg connection is renegotiated. If /renegcert it is
725 renegotiated requesting a certificate.
728 *) Add an "external" session cache for debugging purposes to s_server. This
729 should help trace issues which normally are only apparent in deployed
730 multi-process servers.
733 *) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where
734 return value is ignored. NB. The functions RAND_add(), RAND_seed(),
735 BIO_set_cipher() and some obscure PEM functions were changed so they
736 can now return an error. The RAND changes required a change to the
737 RAND_METHOD structure.
740 *) New macro __owur for "OpenSSL Warn Unused Result". This makes use of
741 a gcc attribute to warn if the result of a function is ignored. This
742 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h
743 whose return value is often ignored.
746 Changes between 1.0.2e and 1.0.2f [28 Jan 2016]
747 *) DH small subgroups
749 Historically OpenSSL only ever generated DH parameters based on "safe"
750 primes. More recently (in version 1.0.2) support was provided for
751 generating X9.42 style parameter files such as those required for RFC 5114
752 support. The primes used in such files may not be "safe". Where an
753 application is using DH configured with parameters based on primes that are
754 not "safe" then an attacker could use this fact to find a peer's private
755 DH exponent. This attack requires that the attacker complete multiple
756 handshakes in which the peer uses the same private DH exponent. For example
757 this could be used to discover a TLS server's private DH exponent if it's
758 reusing the private DH exponent or it's using a static DH ciphersuite.
760 OpenSSL provides the option SSL_OP_SINGLE_DH_USE for ephemeral DH (DHE) in
761 TLS. It is not on by default. If the option is not set then the server
762 reuses the same private DH exponent for the life of the server process and
763 would be vulnerable to this attack. It is believed that many popular
764 applications do set this option and would therefore not be at risk.
766 The fix for this issue adds an additional check where a "q" parameter is
767 available (as is the case in X9.42 based parameters). This detects the
768 only known attack, and is the only possible defense for static DH
769 ciphersuites. This could have some performance impact.
771 Additionally the SSL_OP_SINGLE_DH_USE option has been switched on by
772 default and cannot be disabled. This could have some performance impact.
774 This issue was reported to OpenSSL by Antonio Sanso (Adobe).
778 *) SSLv2 doesn't block disabled ciphers
780 A malicious client can negotiate SSLv2 ciphers that have been disabled on
781 the server and complete SSLv2 handshakes even if all SSLv2 ciphers have
782 been disabled, provided that the SSLv2 protocol was not also disabled via
785 This issue was reported to OpenSSL on 26th December 2015 by Nimrod Aviram
786 and Sebastian Schinzel.
790 Changes between 1.0.2d and 1.0.2e [3 Dec 2015]
792 *) BN_mod_exp may produce incorrect results on x86_64
794 There is a carry propagating bug in the x86_64 Montgomery squaring
795 procedure. No EC algorithms are affected. Analysis suggests that attacks
796 against RSA and DSA as a result of this defect would be very difficult to
797 perform and are not believed likely. Attacks against DH are considered just
798 feasible (although very difficult) because most of the work necessary to
799 deduce information about a private key may be performed offline. The amount
800 of resources required for such an attack would be very significant and
801 likely only accessible to a limited number of attackers. An attacker would
802 additionally need online access to an unpatched system using the target
803 private key in a scenario with persistent DH parameters and a private
804 key that is shared between multiple clients. For example this can occur by
805 default in OpenSSL DHE based SSL/TLS ciphersuites.
807 This issue was reported to OpenSSL by Hanno Böck.
811 *) Certificate verify crash with missing PSS parameter
813 The signature verification routines will crash with a NULL pointer
814 dereference if presented with an ASN.1 signature using the RSA PSS
815 algorithm and absent mask generation function parameter. Since these
816 routines are used to verify certificate signature algorithms this can be
817 used to crash any certificate verification operation and exploited in a
818 DoS attack. Any application which performs certificate verification is
819 vulnerable including OpenSSL clients and servers which enable client
822 This issue was reported to OpenSSL by Loïc Jonas Etienne (Qnective AG).
826 *) X509_ATTRIBUTE memory leak
828 When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak
829 memory. This structure is used by the PKCS#7 and CMS routines so any
830 application which reads PKCS#7 or CMS data from untrusted sources is
831 affected. SSL/TLS is not affected.
833 This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using
838 *) Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs.
839 This changes the decoding behaviour for some invalid messages,
840 though the change is mostly in the more lenient direction, and
841 legacy behaviour is preserved as much as possible.
844 *) In DSA_generate_parameters_ex, if the provided seed is too short,
846 [Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>]
848 Changes between 1.0.2c and 1.0.2d [9 Jul 2015]
850 *) Alternate chains certificate forgery
852 During certificate verfification, OpenSSL will attempt to find an
853 alternative certificate chain if the first attempt to build such a chain
854 fails. An error in the implementation of this logic can mean that an
855 attacker could cause certain checks on untrusted certificates to be
856 bypassed, such as the CA flag, enabling them to use a valid leaf
857 certificate to act as a CA and "issue" an invalid certificate.
859 This issue was reported to OpenSSL by Adam Langley/David Benjamin
863 Changes between 1.0.2b and 1.0.2c [12 Jun 2015]
865 *) Fix HMAC ABI incompatibility. The previous version introduced an ABI
866 incompatibility in the handling of HMAC. The previous ABI has now been
870 Changes between 1.0.2a and 1.0.2b [11 Jun 2015]
872 *) Malformed ECParameters causes infinite loop
874 When processing an ECParameters structure OpenSSL enters an infinite loop
875 if the curve specified is over a specially malformed binary polynomial
878 This can be used to perform denial of service against any
879 system which processes public keys, certificate requests or
880 certificates. This includes TLS clients and TLS servers with
881 client authentication enabled.
883 This issue was reported to OpenSSL by Joseph Barr-Pixton.
887 *) Exploitable out-of-bounds read in X509_cmp_time
889 X509_cmp_time does not properly check the length of the ASN1_TIME
890 string and can read a few bytes out of bounds. In addition,
891 X509_cmp_time accepts an arbitrary number of fractional seconds in the
894 An attacker can use this to craft malformed certificates and CRLs of
895 various sizes and potentially cause a segmentation fault, resulting in
896 a DoS on applications that verify certificates or CRLs. TLS clients
897 that verify CRLs are affected. TLS clients and servers with client
898 authentication enabled may be affected if they use custom verification
901 This issue was reported to OpenSSL by Robert Swiecki (Google), and
902 independently by Hanno Böck.
906 *) PKCS7 crash with missing EnvelopedContent
908 The PKCS#7 parsing code does not handle missing inner EncryptedContent
909 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs
910 with missing content and trigger a NULL pointer dereference on parsing.
912 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7
913 structures from untrusted sources are affected. OpenSSL clients and
914 servers are not affected.
916 This issue was reported to OpenSSL by Michal Zalewski (Google).
920 *) CMS verify infinite loop with unknown hash function
922 When verifying a signedData message the CMS code can enter an infinite loop
923 if presented with an unknown hash function OID. This can be used to perform
924 denial of service against any system which verifies signedData messages using
926 This issue was reported to OpenSSL by Johannes Bauer.
930 *) Race condition handling NewSessionTicket
932 If a NewSessionTicket is received by a multi-threaded client when attempting to
933 reuse a previous ticket then a race condition can occur potentially leading to
934 a double free of the ticket data.
938 *) Only support 256-bit or stronger elliptic curves with the
939 'ecdh_auto' setting (server) or by default (client). Of supported
940 curves, prefer P-256 (both).
943 Changes between 1.0.2 and 1.0.2a [19 Mar 2015]
945 *) ClientHello sigalgs DoS fix
947 If a client connects to an OpenSSL 1.0.2 server and renegotiates with an
948 invalid signature algorithms extension a NULL pointer dereference will
949 occur. This can be exploited in a DoS attack against the server.
951 This issue was was reported to OpenSSL by David Ramos of Stanford
954 [Stephen Henson and Matt Caswell]
956 *) Multiblock corrupted pointer fix
958 OpenSSL 1.0.2 introduced the "multiblock" performance improvement. This
959 feature only applies on 64 bit x86 architecture platforms that support AES
960 NI instructions. A defect in the implementation of "multiblock" can cause
961 OpenSSL's internal write buffer to become incorrectly set to NULL when
962 using non-blocking IO. Typically, when the user application is using a
963 socket BIO for writing, this will only result in a failed connection.
964 However if some other BIO is used then it is likely that a segmentation
965 fault will be triggered, thus enabling a potential DoS attack.
967 This issue was reported to OpenSSL by Daniel Danner and Rainer Mueller.
971 *) Segmentation fault in DTLSv1_listen fix
973 The DTLSv1_listen function is intended to be stateless and processes the
974 initial ClientHello from many peers. It is common for user code to loop
975 over the call to DTLSv1_listen until a valid ClientHello is received with
976 an associated cookie. A defect in the implementation of DTLSv1_listen means
977 that state is preserved in the SSL object from one invocation to the next
978 that can lead to a segmentation fault. Errors processing the initial
979 ClientHello can trigger this scenario. An example of such an error could be
980 that a DTLS1.0 only client is attempting to connect to a DTLS1.2 only
983 This issue was reported to OpenSSL by Per Allansson.
987 *) Segmentation fault in ASN1_TYPE_cmp fix
989 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is
990 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check
991 certificate signature algorithm consistency this can be used to crash any
992 certificate verification operation and exploited in a DoS attack. Any
993 application which performs certificate verification is vulnerable including
994 OpenSSL clients and servers which enable client authentication.
998 *) Segmentation fault for invalid PSS parameters fix
1000 The signature verification routines will crash with a NULL pointer
1001 dereference if presented with an ASN.1 signature using the RSA PSS
1002 algorithm and invalid parameters. Since these routines are used to verify
1003 certificate signature algorithms this can be used to crash any
1004 certificate verification operation and exploited in a DoS attack. Any
1005 application which performs certificate verification is vulnerable including
1006 OpenSSL clients and servers which enable client authentication.
1008 This issue was was reported to OpenSSL by Brian Carpenter.
1012 *) ASN.1 structure reuse memory corruption fix
1014 Reusing a structure in ASN.1 parsing may allow an attacker to cause
1015 memory corruption via an invalid write. Such reuse is and has been
1016 strongly discouraged and is believed to be rare.
1018 Applications that parse structures containing CHOICE or ANY DEFINED BY
1019 components may be affected. Certificate parsing (d2i_X509 and related
1020 functions) are however not affected. OpenSSL clients and servers are
1025 *) PKCS7 NULL pointer dereferences fix
1027 The PKCS#7 parsing code does not handle missing outer ContentInfo
1028 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with
1029 missing content and trigger a NULL pointer dereference on parsing.
1031 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or
1032 otherwise parse PKCS#7 structures from untrusted sources are
1033 affected. OpenSSL clients and servers are not affected.
1035 This issue was reported to OpenSSL by Michal Zalewski (Google).
1039 *) DoS via reachable assert in SSLv2 servers fix
1041 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in
1042 servers that both support SSLv2 and enable export cipher suites by sending
1043 a specially crafted SSLv2 CLIENT-MASTER-KEY message.
1045 This issue was discovered by Sean Burford (Google) and Emilia Käsper
1046 (OpenSSL development team).
1050 *) Empty CKE with client auth and DHE fix
1052 If client auth is used then a server can seg fault in the event of a DHE
1053 ciphersuite being selected and a zero length ClientKeyExchange message
1054 being sent by the client. This could be exploited in a DoS attack.
1058 *) Handshake with unseeded PRNG fix
1060 Under certain conditions an OpenSSL 1.0.2 client can complete a handshake
1061 with an unseeded PRNG. The conditions are:
1062 - The client is on a platform where the PRNG has not been seeded
1063 automatically, and the user has not seeded manually
1064 - A protocol specific client method version has been used (i.e. not
1065 SSL_client_methodv23)
1066 - A ciphersuite is used that does not require additional random data from
1067 the PRNG beyond the initial ClientHello client random (e.g. PSK-RC4-SHA).
1069 If the handshake succeeds then the client random that has been used will
1070 have been generated from a PRNG with insufficient entropy and therefore the
1071 output may be predictable.
1073 For example using the following command with an unseeded openssl will
1074 succeed on an unpatched platform:
1076 openssl s_client -psk 1a2b3c4d -tls1_2 -cipher PSK-RC4-SHA
1080 *) Use After Free following d2i_ECPrivatekey error fix
1082 A malformed EC private key file consumed via the d2i_ECPrivateKey function
1083 could cause a use after free condition. This, in turn, could cause a double
1084 free in several private key parsing functions (such as d2i_PrivateKey
1085 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption
1086 for applications that receive EC private keys from untrusted
1087 sources. This scenario is considered rare.
1089 This issue was discovered by the BoringSSL project and fixed in their
1094 *) X509_to_X509_REQ NULL pointer deref fix
1096 The function X509_to_X509_REQ will crash with a NULL pointer dereference if
1097 the certificate key is invalid. This function is rarely used in practice.
1099 This issue was discovered by Brian Carpenter.
1103 *) Removed the export ciphers from the DEFAULT ciphers
1106 Changes between 1.0.1l and 1.0.2 [22 Jan 2015]
1108 *) Facilitate "universal" ARM builds targeting range of ARM ISAs, e.g.
1109 ARMv5 through ARMv8, as opposite to "locking" it to single one.
1110 So far those who have to target multiple plaforms would compromise
1111 and argue that binary targeting say ARMv5 would still execute on
1112 ARMv8. "Universal" build resolves this compromise by providing
1113 near-optimal performance even on newer platforms.
1116 *) Accelerated NIST P-256 elliptic curve implementation for x86_64
1117 (other platforms pending).
1118 [Shay Gueron & Vlad Krasnov (Intel Corp), Andy Polyakov]
1120 *) Add support for the SignedCertificateTimestampList certificate and
1121 OCSP response extensions from RFC6962.
1124 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.)
1125 for corner cases. (Certain input points at infinity could lead to
1126 bogus results, with non-infinity inputs mapped to infinity too.)
1129 *) Initial support for PowerISA 2.0.7, first implemented in POWER8.
1130 This covers AES, SHA256/512 and GHASH. "Initial" means that most
1131 common cases are optimized and there still is room for further
1132 improvements. Vector Permutation AES for Altivec is also added.
1135 *) Add support for little-endian ppc64 Linux target.
1136 [Marcelo Cerri (IBM)]
1138 *) Initial support for AMRv8 ISA crypto extensions. This covers AES,
1139 SHA1, SHA256 and GHASH. "Initial" means that most common cases
1140 are optimized and there still is room for further improvements.
1141 Both 32- and 64-bit modes are supported.
1142 [Andy Polyakov, Ard Biesheuvel (Linaro)]
1144 *) Improved ARMv7 NEON support.
1147 *) Support for SPARC Architecture 2011 crypto extensions, first
1148 implemented in SPARC T4. This covers AES, DES, Camellia, SHA1,
1149 SHA256/512, MD5, GHASH and modular exponentiation.
1150 [Andy Polyakov, David Miller]
1152 *) Accelerated modular exponentiation for Intel processors, a.k.a.
1154 [Shay Gueron & Vlad Krasnov (Intel Corp)]
1156 *) Support for new and upcoming Intel processors, including AVX2,
1157 BMI and SHA ISA extensions. This includes additional "stitched"
1158 implementations, AESNI-SHA256 and GCM, and multi-buffer support
1161 This work was sponsored by Intel Corp.
1164 *) Support for DTLS 1.2. This adds two sets of DTLS methods: DTLS_*_method()
1165 supports both DTLS 1.2 and 1.0 and should use whatever version the peer
1166 supports and DTLSv1_2_*_method() which supports DTLS 1.2 only.
1169 *) Use algorithm specific chains in SSL_CTX_use_certificate_chain_file():
1170 this fixes a limiation in previous versions of OpenSSL.
1173 *) Extended RSA OAEP support via EVP_PKEY API. Options to specify digest,
1174 MGF1 digest and OAEP label.
1177 *) Add EVP support for key wrapping algorithms, to avoid problems with
1178 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in
1179 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap
1180 algorithms and include tests cases.
1183 *) Add functions to allocate and set the fields of an ECDSA_METHOD
1185 [Douglas E. Engert, Steve Henson]
1187 *) New functions OPENSSL_gmtime_diff and ASN1_TIME_diff to find the
1188 difference in days and seconds between two tm or ASN1_TIME structures.
1191 *) Add -rev test option to s_server to just reverse order of characters
1192 received by client and send back to server. Also prints an abbreviated
1193 summary of the connection parameters.
1196 *) New option -brief for s_client and s_server to print out a brief summary
1197 of connection parameters.
1200 *) Add callbacks for arbitrary TLS extensions.
1201 [Trevor Perrin <trevp@trevp.net> and Ben Laurie]
1203 *) New option -crl_download in several openssl utilities to download CRLs
1204 from CRLDP extension in certificates.
1207 *) New options -CRL and -CRLform for s_client and s_server for CRLs.
1210 *) New function X509_CRL_diff to generate a delta CRL from the difference
1211 of two full CRLs. Add support to "crl" utility.
1214 *) New functions to set lookup_crls function and to retrieve
1215 X509_STORE from X509_STORE_CTX.
1218 *) Print out deprecated issuer and subject unique ID fields in
1222 *) Extend OCSP I/O functions so they can be used for simple general purpose
1223 HTTP as well as OCSP. New wrapper function which can be used to download
1224 CRLs using the OCSP API.
1227 *) Delegate command line handling in s_client/s_server to SSL_CONF APIs.
1230 *) SSL_CONF* functions. These provide a common framework for application
1231 configuration using configuration files or command lines.
1234 *) SSL/TLS tracing code. This parses out SSL/TLS records using the
1235 message callback and prints the results. Needs compile time option
1236 "enable-ssl-trace". New options to s_client and s_server to enable
1240 *) New ctrl and macro to retrieve supported points extensions.
1241 Print out extension in s_server and s_client.
1244 *) New functions to retrieve certificate signature and signature
1248 *) Add functions to retrieve and manipulate the raw cipherlist sent by a
1252 *) New Suite B modes for TLS code. These use and enforce the requirements
1253 of RFC6460: restrict ciphersuites, only permit Suite B algorithms and
1254 only use Suite B curves. The Suite B modes can be set by using the
1255 strings "SUITEB128", "SUITEB192" or "SUITEB128ONLY" for the cipherstring.
1258 *) New chain verification flags for Suite B levels of security. Check
1259 algorithms are acceptable when flags are set in X509_verify_cert.
1262 *) Make tls1_check_chain return a set of flags indicating checks passed
1263 by a certificate chain. Add additional tests to handle client
1264 certificates: checks for matching certificate type and issuer name
1268 *) If an attempt is made to use a signature algorithm not in the peer
1269 preference list abort the handshake. If client has no suitable
1270 signature algorithms in response to a certificate request do not
1271 use the certificate.
1274 *) If server EC tmp key is not in client preference list abort handshake.
1277 *) Add support for certificate stores in CERT structure. This makes it
1278 possible to have different stores per SSL structure or one store in
1279 the parent SSL_CTX. Include distint stores for certificate chain
1280 verification and chain building. New ctrl SSL_CTRL_BUILD_CERT_CHAIN
1281 to build and store a certificate chain in CERT structure: returing
1282 an error if the chain cannot be built: this will allow applications
1283 to test if a chain is correctly configured.
1285 Note: if the CERT based stores are not set then the parent SSL_CTX
1286 store is used to retain compatibility with existing behaviour.
1290 *) New function ssl_set_client_disabled to set a ciphersuite disabled
1291 mask based on the current session, check mask when sending client
1292 hello and checking the requested ciphersuite.
1295 *) New ctrls to retrieve and set certificate types in a certificate
1296 request message. Print out received values in s_client. If certificate
1297 types is not set with custom values set sensible values based on
1298 supported signature algorithms.
1301 *) Support for distinct client and server supported signature algorithms.
1304 *) Add certificate callback. If set this is called whenever a certificate
1305 is required by client or server. An application can decide which
1306 certificate chain to present based on arbitrary criteria: for example
1307 supported signature algorithms. Add very simple example to s_server.
1308 This fixes many of the problems and restrictions of the existing client
1309 certificate callback: for example you can now clear an existing
1310 certificate and specify the whole chain.
1313 *) Add new "valid_flags" field to CERT_PKEY structure which determines what
1314 the certificate can be used for (if anything). Set valid_flags field
1315 in new tls1_check_chain function. Simplify ssl_set_cert_masks which used
1316 to have similar checks in it.
1318 Add new "cert_flags" field to CERT structure and include a "strict mode".
1319 This enforces some TLS certificate requirements (such as only permitting
1320 certificate signature algorithms contained in the supported algorithms
1321 extension) which some implementations ignore: this option should be used
1322 with caution as it could cause interoperability issues.
1325 *) Update and tidy signature algorithm extension processing. Work out
1326 shared signature algorithms based on preferences and peer algorithms
1327 and print them out in s_client and s_server. Abort handshake if no
1328 shared signature algorithms.
1331 *) Add new functions to allow customised supported signature algorithms
1332 for SSL and SSL_CTX structures. Add options to s_client and s_server
1336 *) New function SSL_certs_clear() to delete all references to certificates
1337 from an SSL structure. Before this once a certificate had been added
1338 it couldn't be removed.
1341 *) Integrate hostname, email address and IP address checking with certificate
1342 verification. New verify options supporting checking in opensl utility.
1345 *) Fixes and wildcard matching support to hostname and email checking
1346 functions. Add manual page.
1347 [Florian Weimer (Red Hat Product Security Team)]
1349 *) New functions to check a hostname email or IP address against a
1350 certificate. Add options x509 utility to print results of checks against
1354 *) Fix OCSP checking.
1355 [Rob Stradling <rob.stradling@comodo.com> and Ben Laurie]
1357 *) Initial experimental support for explicitly trusted non-root CAs.
1358 OpenSSL still tries to build a complete chain to a root but if an
1359 intermediate CA has a trust setting included that is used. The first
1360 setting is used: whether to trust (e.g., -addtrust option to the x509
1364 *) Add -trusted_first option which attempts to find certificates in the
1365 trusted store even if an untrusted chain is also supplied.
1368 *) MIPS assembly pack updates: support for MIPS32r2 and SmartMIPS ASE,
1369 platform support for Linux and Android.
1372 *) Support for linux-x32, ILP32 environment in x86_64 framework.
1375 *) Experimental multi-implementation support for FIPS capable OpenSSL.
1376 When in FIPS mode the approved implementations are used as normal,
1377 when not in FIPS mode the internal unapproved versions are used instead.
1378 This means that the FIPS capable OpenSSL isn't forced to use the
1379 (often lower performance) FIPS implementations outside FIPS mode.
1382 *) Transparently support X9.42 DH parameters when calling
1383 PEM_read_bio_DHparameters. This means existing applications can handle
1384 the new parameter format automatically.
1387 *) Initial experimental support for X9.42 DH parameter format: mainly
1388 to support use of 'q' parameter for RFC5114 parameters.
1391 *) Add DH parameters from RFC5114 including test data to dhtest.
1394 *) Support for automatic EC temporary key parameter selection. If enabled
1395 the most preferred EC parameters are automatically used instead of
1396 hardcoded fixed parameters. Now a server just has to call:
1397 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically
1398 support ECDH and use the most appropriate parameters.
1401 *) Enhance and tidy EC curve and point format TLS extension code. Use
1402 static structures instead of allocation if default values are used.
1403 New ctrls to set curves we wish to support and to retrieve shared curves.
1404 Print out shared curves in s_server. New options to s_server and s_client
1405 to set list of supported curves.
1408 *) New ctrls to retrieve supported signature algorithms and
1409 supported curve values as an array of NIDs. Extend openssl utility
1410 to print out received values.
1413 *) Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert
1414 between NIDs and the more common NIST names such as "P-256". Enhance
1415 ecparam utility and ECC method to recognise the NIST names for curves.
1418 *) Enhance SSL/TLS certificate chain handling to support different
1419 chains for each certificate instead of one chain in the parent SSL_CTX.
1422 *) Support for fixed DH ciphersuite client authentication: where both
1423 server and client use DH certificates with common parameters.
1426 *) Support for fixed DH ciphersuites: those requiring DH server
1430 *) New function i2d_re_X509_tbs for re-encoding the TBS portion of
1432 Note: Related 1.0.2-beta specific macros X509_get_cert_info,
1433 X509_CINF_set_modified, X509_CINF_get_issuer, X509_CINF_get_extensions and
1434 X509_CINF_get_signature were reverted post internal team review.
1436 Changes between 1.0.1k and 1.0.1l [15 Jan 2015]
1438 *) Build fixes for the Windows and OpenVMS platforms
1439 [Matt Caswell and Richard Levitte]
1441 Changes between 1.0.1j and 1.0.1k [8 Jan 2015]
1443 *) Fix DTLS segmentation fault in dtls1_get_record. A carefully crafted DTLS
1444 message can cause a segmentation fault in OpenSSL due to a NULL pointer
1445 dereference. This could lead to a Denial Of Service attack. Thanks to
1446 Markus Stenberg of Cisco Systems, Inc. for reporting this issue.
1450 *) Fix DTLS memory leak in dtls1_buffer_record. A memory leak can occur in the
1451 dtls1_buffer_record function under certain conditions. In particular this
1452 could occur if an attacker sent repeated DTLS records with the same
1453 sequence number but for the next epoch. The memory leak could be exploited
1454 by an attacker in a Denial of Service attack through memory exhaustion.
1455 Thanks to Chris Mueller for reporting this issue.
1459 *) Fix issue where no-ssl3 configuration sets method to NULL. When openssl is
1460 built with the no-ssl3 option and a SSL v3 ClientHello is received the ssl
1461 method would be set to NULL which could later result in a NULL pointer
1462 dereference. Thanks to Frank Schmirler for reporting this issue.
1466 *) Abort handshake if server key exchange message is omitted for ephemeral
1469 Thanks to Karthikeyan Bhargavan of the PROSECCO team at INRIA for
1470 reporting this issue.
1474 *) Remove non-export ephemeral RSA code on client and server. This code
1475 violated the TLS standard by allowing the use of temporary RSA keys in
1476 non-export ciphersuites and could be used by a server to effectively
1477 downgrade the RSA key length used to a value smaller than the server
1478 certificate. Thanks for Karthikeyan Bhargavan of the PROSECCO team at
1479 INRIA or reporting this issue.
1483 *) Fixed issue where DH client certificates are accepted without verification.
1484 An OpenSSL server will accept a DH certificate for client authentication
1485 without the certificate verify message. This effectively allows a client to
1486 authenticate without the use of a private key. This only affects servers
1487 which trust a client certificate authority which issues certificates
1488 containing DH keys: these are extremely rare and hardly ever encountered.
1489 Thanks for Karthikeyan Bhargavan of the PROSECCO team at INRIA or reporting
1494 *) Ensure that the session ID context of an SSL is updated when its
1495 SSL_CTX is updated via SSL_set_SSL_CTX.
1497 The session ID context is typically set from the parent SSL_CTX,
1498 and can vary with the CTX.
1501 *) Fix various certificate fingerprint issues.
1503 By using non-DER or invalid encodings outside the signed portion of a
1504 certificate the fingerprint can be changed without breaking the signature.
1505 Although no details of the signed portion of the certificate can be changed
1506 this can cause problems with some applications: e.g. those using the
1507 certificate fingerprint for blacklists.
1509 1. Reject signatures with non zero unused bits.
1511 If the BIT STRING containing the signature has non zero unused bits reject
1512 the signature. All current signature algorithms require zero unused bits.
1514 2. Check certificate algorithm consistency.
1516 Check the AlgorithmIdentifier inside TBS matches the one in the
1517 certificate signature. NB: this will result in signature failure
1518 errors for some broken certificates.
1520 Thanks to Konrad Kraszewski from Google for reporting this issue.
1522 3. Check DSA/ECDSA signatures use DER.
1524 Reencode DSA/ECDSA signatures and compare with the original received
1525 signature. Return an error if there is a mismatch.
1527 This will reject various cases including garbage after signature
1528 (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS
1529 program for discovering this case) and use of BER or invalid ASN.1 INTEGERs
1530 (negative or with leading zeroes).
1532 Further analysis was conducted and fixes were developed by Stephen Henson
1533 of the OpenSSL core team.
1538 *) Correct Bignum squaring. Bignum squaring (BN_sqr) may produce incorrect
1539 results on some platforms, including x86_64. This bug occurs at random
1540 with a very low probability, and is not known to be exploitable in any
1541 way, though its exact impact is difficult to determine. Thanks to Pieter
1542 Wuille (Blockstream) who reported this issue and also suggested an initial
1543 fix. Further analysis was conducted by the OpenSSL development team and
1544 Adam Langley of Google. The final fix was developed by Andy Polyakov of
1545 the OpenSSL core team.
1549 *) Do not resume sessions on the server if the negotiated protocol
1550 version does not match the session's version. Resuming with a different
1551 version, while not strictly forbidden by the RFC, is of questionable
1552 sanity and breaks all known clients.
1553 [David Benjamin, Emilia Käsper]
1555 *) Tighten handling of the ChangeCipherSpec (CCS) message: reject
1556 early CCS messages during renegotiation. (Note that because
1557 renegotiation is encrypted, this early CCS was not exploitable.)
1560 *) Tighten client-side session ticket handling during renegotiation:
1561 ensure that the client only accepts a session ticket if the server sends
1562 the extension anew in the ServerHello. Previously, a TLS client would
1563 reuse the old extension state and thus accept a session ticket if one was
1564 announced in the initial ServerHello.
1566 Similarly, ensure that the client requires a session ticket if one
1567 was advertised in the ServerHello. Previously, a TLS client would
1568 ignore a missing NewSessionTicket message.
1571 Changes between 1.0.1i and 1.0.1j [15 Oct 2014]
1573 *) SRTP Memory Leak.
1575 A flaw in the DTLS SRTP extension parsing code allows an attacker, who
1576 sends a carefully crafted handshake message, to cause OpenSSL to fail
1577 to free up to 64k of memory causing a memory leak. This could be
1578 exploited in a Denial Of Service attack. This issue affects OpenSSL
1579 1.0.1 server implementations for both SSL/TLS and DTLS regardless of
1580 whether SRTP is used or configured. Implementations of OpenSSL that
1581 have been compiled with OPENSSL_NO_SRTP defined are not affected.
1583 The fix was developed by the OpenSSL team.
1587 *) Session Ticket Memory Leak.
1589 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the
1590 integrity of that ticket is first verified. In the event of a session
1591 ticket integrity check failing, OpenSSL will fail to free memory
1592 causing a memory leak. By sending a large number of invalid session
1593 tickets an attacker could exploit this issue in a Denial Of Service
1598 *) Build option no-ssl3 is incomplete.
1600 When OpenSSL is configured with "no-ssl3" as a build option, servers
1601 could accept and complete a SSL 3.0 handshake, and clients could be
1602 configured to send them.
1604 [Akamai and the OpenSSL team]
1606 *) Add support for TLS_FALLBACK_SCSV.
1607 Client applications doing fallback retries should call
1608 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV).
1610 [Adam Langley, Bodo Moeller]
1612 *) Add additional DigestInfo checks.
1614 Reencode DigestInto in DER and check against the original when
1615 verifying RSA signature: this will reject any improperly encoded
1616 DigestInfo structures.
1618 Note: this is a precautionary measure and no attacks are currently known.
1622 Changes between 1.0.1h and 1.0.1i [6 Aug 2014]
1624 *) Fix SRP buffer overrun vulnerability. Invalid parameters passed to the
1625 SRP code can be overrun an internal buffer. Add sanity check that
1626 g, A, B < N to SRP code.
1628 Thanks to Sean Devlin and Watson Ladd of Cryptography Services, NCC
1629 Group for discovering this issue.
1633 *) A flaw in the OpenSSL SSL/TLS server code causes the server to negotiate
1634 TLS 1.0 instead of higher protocol versions when the ClientHello message
1635 is badly fragmented. This allows a man-in-the-middle attacker to force a
1636 downgrade to TLS 1.0 even if both the server and the client support a
1637 higher protocol version, by modifying the client's TLS records.
1639 Thanks to David Benjamin and Adam Langley (Google) for discovering and
1640 researching this issue.
1644 *) OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject
1645 to a denial of service attack. A malicious server can crash the client
1646 with a null pointer dereference (read) by specifying an anonymous (EC)DH
1647 ciphersuite and sending carefully crafted handshake messages.
1649 Thanks to Felix Gröbert (Google) for discovering and researching this
1654 *) By sending carefully crafted DTLS packets an attacker could cause openssl
1655 to leak memory. This can be exploited through a Denial of Service attack.
1656 Thanks to Adam Langley for discovering and researching this issue.
1660 *) An attacker can force openssl to consume large amounts of memory whilst
1661 processing DTLS handshake messages. This can be exploited through a
1662 Denial of Service attack.
1663 Thanks to Adam Langley for discovering and researching this issue.
1667 *) An attacker can force an error condition which causes openssl to crash
1668 whilst processing DTLS packets due to memory being freed twice. This
1669 can be exploited through a Denial of Service attack.
1670 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching
1675 *) If a multithreaded client connects to a malicious server using a resumed
1676 session and the server sends an ec point format extension it could write
1677 up to 255 bytes to freed memory.
1679 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this
1684 *) A malicious server can crash an OpenSSL client with a null pointer
1685 dereference (read) by specifying an SRP ciphersuite even though it was not
1686 properly negotiated with the client. This can be exploited through a
1687 Denial of Service attack.
1689 Thanks to Joonas Kuorilehto and Riku Hietamäki (Codenomicon) for
1690 discovering and researching this issue.
1694 *) A flaw in OBJ_obj2txt may cause pretty printing functions such as
1695 X509_name_oneline, X509_name_print_ex et al. to leak some information
1696 from the stack. Applications may be affected if they echo pretty printing
1697 output to the attacker.
1699 Thanks to Ivan Fratric (Google) for discovering this issue.
1701 [Emilia Käsper, and Steve Henson]
1703 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.)
1704 for corner cases. (Certain input points at infinity could lead to
1705 bogus results, with non-infinity inputs mapped to infinity too.)
1708 Changes between 1.0.1g and 1.0.1h [5 Jun 2014]
1710 *) Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted
1711 handshake can force the use of weak keying material in OpenSSL
1712 SSL/TLS clients and servers.
1714 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and
1715 researching this issue. (CVE-2014-0224)
1716 [KIKUCHI Masashi, Steve Henson]
1718 *) Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an
1719 OpenSSL DTLS client the code can be made to recurse eventually crashing
1722 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue.
1724 [Imre Rad, Steve Henson]
1726 *) Fix DTLS invalid fragment vulnerability. A buffer overrun attack can
1727 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS
1728 client or server. This is potentially exploitable to run arbitrary
1729 code on a vulnerable client or server.
1731 Thanks to Jüri Aedla for reporting this issue. (CVE-2014-0195)
1732 [Jüri Aedla, Steve Henson]
1734 *) Fix bug in TLS code where clients enable anonymous ECDH ciphersuites
1735 are subject to a denial of service attack.
1737 Thanks to Felix Gröbert and Ivan Fratric at Google for discovering
1738 this issue. (CVE-2014-3470)
1739 [Felix Gröbert, Ivan Fratric, Steve Henson]
1741 *) Harmonize version and its documentation. -f flag is used to display
1743 [mancha <mancha1@zoho.com>]
1745 *) Fix eckey_priv_encode so it immediately returns an error upon a failure
1746 in i2d_ECPrivateKey.
1747 [mancha <mancha1@zoho.com>]
1749 *) Fix some double frees. These are not thought to be exploitable.
1750 [mancha <mancha1@zoho.com>]
1752 Changes between 1.0.1f and 1.0.1g [7 Apr 2014]
1754 *) A missing bounds check in the handling of the TLS heartbeat extension
1755 can be used to reveal up to 64k of memory to a connected client or
1758 Thanks for Neel Mehta of Google Security for discovering this bug and to
1759 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for
1760 preparing the fix (CVE-2014-0160)
1761 [Adam Langley, Bodo Moeller]
1763 *) Fix for the attack described in the paper "Recovering OpenSSL
1764 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack"
1765 by Yuval Yarom and Naomi Benger. Details can be obtained from:
1766 http://eprint.iacr.org/2014/140
1768 Thanks to Yuval Yarom and Naomi Benger for discovering this
1769 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076)
1770 [Yuval Yarom and Naomi Benger]
1772 *) TLS pad extension: draft-agl-tls-padding-03
1774 Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the
1775 TLS client Hello record length value would otherwise be > 255 and
1776 less that 512 pad with a dummy extension containing zeroes so it
1777 is at least 512 bytes long.
1779 [Adam Langley, Steve Henson]
1781 Changes between 1.0.1e and 1.0.1f [6 Jan 2014]
1783 *) Fix for TLS record tampering bug. A carefully crafted invalid
1784 handshake could crash OpenSSL with a NULL pointer exception.
1785 Thanks to Anton Johansson for reporting this issues.
1788 *) Keep original DTLS digest and encryption contexts in retransmission
1789 structures so we can use the previous session parameters if they need
1790 to be resent. (CVE-2013-6450)
1793 *) Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which
1794 avoids preferring ECDHE-ECDSA ciphers when the client appears to be
1795 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for
1796 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug
1797 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing
1798 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer.
1799 [Rob Stradling, Adam Langley]
1801 Changes between 1.0.1d and 1.0.1e [11 Feb 2013]
1803 *) Correct fix for CVE-2013-0169. The original didn't work on AES-NI
1804 supporting platforms or when small records were transferred.
1805 [Andy Polyakov, Steve Henson]
1807 Changes between 1.0.1c and 1.0.1d [5 Feb 2013]
1809 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
1811 This addresses the flaw in CBC record processing discovered by
1812 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
1813 at: http://www.isg.rhul.ac.uk/tls/
1815 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1816 Security Group at Royal Holloway, University of London
1817 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
1818 Emilia Käsper for the initial patch.
1820 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
1822 *) Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode
1823 ciphersuites which can be exploited in a denial of service attack.
1824 Thanks go to and to Adam Langley <agl@chromium.org> for discovering
1825 and detecting this bug and to Wolfgang Ettlinger
1826 <wolfgang.ettlinger@gmail.com> for independently discovering this issue.
1830 *) Return an error when checking OCSP signatures when key is NULL.
1831 This fixes a DoS attack. (CVE-2013-0166)
1834 *) Make openssl verify return errors.
1835 [Chris Palmer <palmer@google.com> and Ben Laurie]
1837 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
1838 the right response is stapled. Also change SSL_get_certificate()
1839 so it returns the certificate actually sent.
1840 See http://rt.openssl.org/Ticket/Display.html?id=2836.
1841 [Rob Stradling <rob.stradling@comodo.com>]
1843 *) Fix possible deadlock when decoding public keys.
1846 *) Don't use TLS 1.0 record version number in initial client hello
1850 Changes between 1.0.1b and 1.0.1c [10 May 2012]
1852 *) Sanity check record length before skipping explicit IV in TLS
1853 1.2, 1.1 and DTLS to fix DoS attack.
1855 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
1856 fuzzing as a service testing platform.
1860 *) Initialise tkeylen properly when encrypting CMS messages.
1861 Thanks to Solar Designer of Openwall for reporting this issue.
1864 *) In FIPS mode don't try to use composite ciphers as they are not
1868 Changes between 1.0.1a and 1.0.1b [26 Apr 2012]
1870 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and
1871 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately
1872 mean any application compiled against OpenSSL 1.0.0 headers setting
1873 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng
1874 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to
1875 0x10000000L Any application which was previously compiled against
1876 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1
1877 will need to be recompiled as a result. Letting be results in
1878 inability to disable specifically TLS 1.1 and in client context,
1879 in unlike event, limit maximum offered version to TLS 1.0 [see below].
1882 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not
1883 disable just protocol X, but all protocols above X *if* there are
1884 protocols *below* X still enabled. In more practical terms it means
1885 that if application wants to disable TLS1.0 in favor of TLS1.1 and
1886 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass
1887 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to
1891 Changes between 1.0.1 and 1.0.1a [19 Apr 2012]
1893 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
1894 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
1895 in CRYPTO_realloc_clean.
1897 Thanks to Tavis Ormandy, Google Security Team, for discovering this
1898 issue and to Adam Langley <agl@chromium.org> for fixing it.
1900 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
1902 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections.
1905 *) Workarounds for some broken servers that "hang" if a client hello
1906 record length exceeds 255 bytes.
1908 1. Do not use record version number > TLS 1.0 in initial client
1909 hello: some (but not all) hanging servers will now work.
1910 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate
1911 the number of ciphers sent in the client hello. This should be
1912 set to an even number, such as 50, for example by passing:
1913 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure.
1914 Most broken servers should now work.
1915 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable
1916 TLS 1.2 client support entirely.
1919 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH.
1922 Changes between 1.0.0h and 1.0.1 [14 Mar 2012]
1924 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
1925 STRING form instead of a DigestInfo.
1928 *) The format used for MDC2 RSA signatures is inconsistent between EVP
1929 and the RSA_sign/RSA_verify functions. This was made more apparent when
1930 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
1931 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect
1932 the correct format in RSA_verify so both forms transparently work.
1935 *) Some servers which support TLS 1.0 can choke if we initially indicate
1936 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
1937 encrypted premaster secret. As a workaround use the maximum permitted
1938 client version in client hello, this should keep such servers happy
1939 and still work with previous versions of OpenSSL.
1942 *) Add support for TLS/DTLS heartbeats.
1943 [Robin Seggelmann <seggelmann@fh-muenster.de>]
1945 *) Add support for SCTP.
1946 [Robin Seggelmann <seggelmann@fh-muenster.de>]
1948 *) Improved PRNG seeding for VOS.
1949 [Paul Green <Paul.Green@stratus.com>]
1951 *) Extensive assembler packs updates, most notably:
1953 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
1954 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
1955 - x86_64: bit-sliced AES implementation;
1956 - ARM: NEON support, contemporary platforms optimizations;
1957 - s390x: z196 support;
1958 - *: GHASH and GF(2^m) multiplication implementations;
1962 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
1963 (removal of unnecessary code)
1964 [Peter Sylvester <peter.sylvester@edelweb.fr>]
1966 *) Add TLS key material exporter from RFC 5705.
1969 *) Add DTLS-SRTP negotiation from RFC 5764.
1972 *) Add Next Protocol Negotiation,
1973 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
1974 disabled with a no-npn flag to config or Configure. Code donated
1976 [Adam Langley <agl@google.com> and Ben Laurie]
1978 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
1979 NIST-P256, NIST-P521, with constant-time single point multiplication on
1980 typical inputs. Compiler support for the nonstandard type __uint128_t is
1981 required to use this (present in gcc 4.4 and later, for 64-bit builds).
1982 Code made available under Apache License version 2.0.
1984 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
1985 line to include this in your build of OpenSSL, and run "make depend" (or
1986 "make update"). This enables the following EC_METHODs:
1988 EC_GFp_nistp224_method()
1989 EC_GFp_nistp256_method()
1990 EC_GFp_nistp521_method()
1992 EC_GROUP_new_by_curve_name() will automatically use these (while
1993 EC_GROUP_new_curve_GFp() currently prefers the more flexible
1995 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
1997 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
1998 all platforms. Move ssize_t definition from e_os.h to the public
1999 header file e_os2.h as it now appears in public header file cms.h
2002 *) New -sigopt option to the ca, req and x509 utilities. Additional
2003 signature parameters can be passed using this option and in
2007 *) Add RSA PSS signing function. This will generate and set the
2008 appropriate AlgorithmIdentifiers for PSS based on those in the
2009 corresponding EVP_MD_CTX structure. No application support yet.
2012 *) Support for companion algorithm specific ASN1 signing routines.
2013 New function ASN1_item_sign_ctx() signs a pre-initialised
2014 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
2015 the appropriate parameters.
2018 *) Add new algorithm specific ASN1 verification initialisation function
2019 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
2020 handling will be the same no matter what EVP_PKEY_METHOD is used.
2021 Add a PSS handler to support verification of PSS signatures: checked
2022 against a number of sample certificates.
2025 *) Add signature printing for PSS. Add PSS OIDs.
2026 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
2028 *) Add algorithm specific signature printing. An individual ASN1 method
2029 can now print out signatures instead of the standard hex dump.
2031 More complex signatures (e.g. PSS) can print out more meaningful
2032 information. Include DSA version that prints out the signature
2036 *) Password based recipient info support for CMS library: implementing
2040 *) Split password based encryption into PBES2 and PBKDF2 functions. This
2041 neatly separates the code into cipher and PBE sections and is required
2042 for some algorithms that split PBES2 into separate pieces (such as
2043 password based CMS).
2046 *) Session-handling fixes:
2047 - Fix handling of connections that are resuming with a session ID,
2048 but also support Session Tickets.
2049 - Fix a bug that suppressed issuing of a new ticket if the client
2050 presented a ticket with an expired session.
2051 - Try to set the ticket lifetime hint to something reasonable.
2052 - Make tickets shorter by excluding irrelevant information.
2053 - On the client side, don't ignore renewed tickets.
2054 [Adam Langley, Bodo Moeller (Google)]
2056 *) Fix PSK session representation.
2059 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
2061 This work was sponsored by Intel.
2064 *) Add GCM support to TLS library. Some custom code is needed to split
2065 the IV between the fixed (from PRF) and explicit (from TLS record)
2066 portions. This adds all GCM ciphersuites supported by RFC5288 and
2067 RFC5289. Generalise some AES* cipherstrings to include GCM and
2068 add a special AESGCM string for GCM only.
2071 *) Expand range of ctrls for AES GCM. Permit setting invocation
2072 field on decrypt and retrieval of invocation field only on encrypt.
2075 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
2076 As required by RFC5289 these ciphersuites cannot be used if for
2077 versions of TLS earlier than 1.2.
2080 *) For FIPS capable OpenSSL interpret a NULL default public key method
2081 as unset and return the appropriate default but do *not* set the default.
2082 This means we can return the appropriate method in applications that
2083 switch between FIPS and non-FIPS modes.
2086 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
2087 ENGINE is used then we cannot handle that in the FIPS module so we
2088 keep original code iff non-FIPS operations are allowed.
2091 *) Add -attime option to openssl utilities.
2092 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
2094 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
2097 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
2098 FIPS EC methods unconditionally for now.
2101 *) New build option no-ec2m to disable characteristic 2 code.
2104 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
2105 all cases can be covered as some introduce binary incompatibilities.
2108 *) Redirect RSA operations to FIPS module including keygen,
2109 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
2112 *) Add similar low level API blocking to ciphers.
2115 *) Low level digest APIs are not approved in FIPS mode: any attempt
2116 to use these will cause a fatal error. Applications that *really* want
2117 to use them can use the private_* version instead.
2120 *) Redirect cipher operations to FIPS module for FIPS builds.
2123 *) Redirect digest operations to FIPS module for FIPS builds.
2126 *) Update build system to add "fips" flag which will link in fipscanister.o
2127 for static and shared library builds embedding a signature if needed.
2130 *) Output TLS supported curves in preference order instead of numerical
2131 order. This is currently hardcoded for the highest order curves first.
2132 This should be configurable so applications can judge speed vs strength.
2135 *) Add TLS v1.2 server support for client authentication.
2138 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
2142 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
2143 FIPS modules versions.
2146 *) Add TLS v1.2 client side support for client authentication. Keep cache
2147 of handshake records longer as we don't know the hash algorithm to use
2148 until after the certificate request message is received.
2151 *) Initial TLS v1.2 client support. Add a default signature algorithms
2152 extension including all the algorithms we support. Parse new signature
2153 format in client key exchange. Relax some ECC signing restrictions for
2154 TLS v1.2 as indicated in RFC5246.
2157 *) Add server support for TLS v1.2 signature algorithms extension. Switch
2158 to new signature format when needed using client digest preference.
2159 All server ciphersuites should now work correctly in TLS v1.2. No client
2160 support yet and no support for client certificates.
2163 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
2164 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
2165 ciphersuites. At present only RSA key exchange ciphersuites work with
2166 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
2167 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
2168 and version checking.
2171 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
2172 with this defined it will not be affected by any changes to ssl internal
2173 structures. Add several utility functions to allow openssl application
2174 to work with OPENSSL_NO_SSL_INTERN defined.
2178 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
2180 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
2183 *) Permit abbreviated handshakes when renegotiating using the function
2184 SSL_renegotiate_abbreviated().
2185 [Robin Seggelmann <seggelmann@fh-muenster.de>]
2187 *) Add call to ENGINE_register_all_complete() to
2188 ENGINE_load_builtin_engines(), so some implementations get used
2189 automatically instead of needing explicit application support.
2192 *) Add support for TLS key exporter as described in RFC5705.
2193 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
2195 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
2196 a few changes are required:
2198 Add SSL_OP_NO_TLSv1_1 flag.
2199 Add TLSv1_1 methods.
2200 Update version checking logic to handle version 1.1.
2201 Add explicit IV handling (ported from DTLS code).
2202 Add command line options to s_client/s_server.
2205 Changes between 1.0.0g and 1.0.0h [12 Mar 2012]
2207 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
2208 in CMS and PKCS7 code. When RSA decryption fails use a random key for
2209 content decryption and always return the same error. Note: this attack
2210 needs on average 2^20 messages so it only affects automated senders. The
2211 old behaviour can be reenabled in the CMS code by setting the
2212 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
2213 an MMA defence is not necessary.
2214 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
2215 this issue. (CVE-2012-0884)
2218 *) Fix CVE-2011-4619: make sure we really are receiving a
2219 client hello before rejecting multiple SGC restarts. Thanks to
2220 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
2223 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
2225 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
2226 Thanks to Antonio Martin, Enterprise Secure Access Research and
2227 Development, Cisco Systems, Inc. for discovering this bug and
2228 preparing a fix. (CVE-2012-0050)
2231 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
2233 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
2234 of the Vaudenay padding oracle attack on CBC mode encryption
2235 which enables an efficient plaintext recovery attack against
2236 the OpenSSL implementation of DTLS. Their attack exploits timing
2237 differences arising during decryption processing. A research
2238 paper describing this attack can be found at:
2239 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
2240 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
2241 Security Group at Royal Holloway, University of London
2242 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
2243 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
2244 for preparing the fix. (CVE-2011-4108)
2245 [Robin Seggelmann, Michael Tuexen]
2247 *) Clear bytes used for block padding of SSL 3.0 records.
2249 [Adam Langley (Google)]
2251 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
2252 Kadianakis <desnacked@gmail.com> for discovering this issue and
2253 Adam Langley for preparing the fix. (CVE-2011-4619)
2254 [Adam Langley (Google)]
2256 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
2257 [Andrey Kulikov <amdeich@gmail.com>]
2259 *) Prevent malformed RFC3779 data triggering an assertion failure.
2260 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
2261 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
2262 [Rob Austein <sra@hactrn.net>]
2264 *) Improved PRNG seeding for VOS.
2265 [Paul Green <Paul.Green@stratus.com>]
2267 *) Fix ssl_ciph.c set-up race.
2268 [Adam Langley (Google)]
2270 *) Fix spurious failures in ecdsatest.c.
2271 [Emilia Käsper (Google)]
2273 *) Fix the BIO_f_buffer() implementation (which was mixing different
2274 interpretations of the '..._len' fields).
2275 [Adam Langley (Google)]
2277 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
2278 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
2279 threads won't reuse the same blinding coefficients.
2281 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
2282 lock to call BN_BLINDING_invert_ex, and avoids one use of
2283 BN_BLINDING_update for each BN_BLINDING structure (previously,
2284 the last update always remained unused).
2285 [Emilia Käsper (Google)]
2287 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
2288 [Bob Buckholz (Google)]
2290 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
2292 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
2293 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
2294 [Kaspar Brand <ossl@velox.ch>]
2296 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
2297 for multi-threaded use of ECDH. (CVE-2011-3210)
2298 [Adam Langley (Google)]
2300 *) Fix x509_name_ex_d2i memory leak on bad inputs.
2303 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
2304 signature public key algorithm by using OID xref utilities instead.
2305 Before this you could only use some ECC ciphersuites with SHA1 only.
2308 *) Add protection against ECDSA timing attacks as mentioned in the paper
2309 by Billy Bob Brumley and Nicola Tuveri, see:
2311 http://eprint.iacr.org/2011/232.pdf
2313 [Billy Bob Brumley and Nicola Tuveri]
2315 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
2317 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
2318 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
2320 *) Fix bug in string printing code: if *any* escaping is enabled we must
2321 escape the escape character (backslash) or the resulting string is
2325 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
2327 *) Disable code workaround for ancient and obsolete Netscape browsers
2328 and servers: an attacker can use it in a ciphersuite downgrade attack.
2329 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
2332 *) Fixed J-PAKE implementation error, originally discovered by
2333 Sebastien Martini, further info and confirmation from Stefan
2334 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
2337 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
2339 *) Fix extension code to avoid race conditions which can result in a buffer
2340 overrun vulnerability: resumed sessions must not be modified as they can
2341 be shared by multiple threads. CVE-2010-3864
2344 *) Fix WIN32 build system to correctly link an ENGINE directory into
2348 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
2350 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
2352 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
2354 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
2356 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
2357 context. The operation can be customised via the ctrl mechanism in
2358 case ENGINEs want to include additional functionality.
2361 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
2364 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
2365 output hashes compatible with older versions of OpenSSL.
2366 [Willy Weisz <weisz@vcpc.univie.ac.at>]
2368 *) Fix compression algorithm handling: if resuming a session use the
2369 compression algorithm of the resumed session instead of determining
2370 it from client hello again. Don't allow server to change algorithm.
2373 *) Add load_crls() function to apps tidying load_certs() too. Add option
2374 to verify utility to allow additional CRLs to be included.
2377 *) Update OCSP request code to permit adding custom headers to the request:
2378 some responders need this.
2381 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
2383 [Julia Lawall <julia@diku.dk>]
2385 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
2386 needlessly dereferenced structures, used obsolete functions and
2387 didn't handle all updated verify codes correctly.
2390 *) Disable MD2 in the default configuration.
2393 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
2394 indicate the initial BIO being pushed or popped. This makes it possible
2395 to determine whether the BIO is the one explicitly called or as a result
2396 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
2397 it handles reference counts correctly and doesn't zero out the I/O bio
2398 when it is not being explicitly popped. WARNING: applications which
2399 included workarounds for the old buggy behaviour will need to be modified
2400 or they could free up already freed BIOs.
2403 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
2404 renaming to all platforms (within the 0.9.8 branch, this was
2405 done conditionally on Netware platforms to avoid a name clash).
2406 [Guenter <lists@gknw.net>]
2408 *) Add ECDHE and PSK support to DTLS.
2409 [Michael Tuexen <tuexen@fh-muenster.de>]
2411 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
2415 *) Add "missing" function EVP_MD_flags() (without this the only way to
2416 retrieve a digest flags is by accessing the structure directly. Update
2417 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
2418 or cipher is registered as in the "from" argument. Print out all
2419 registered digests in the dgst usage message instead of manually
2420 attempting to work them out.
2423 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
2424 this allows the use of compression and extensions. Change default cipher
2425 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
2426 by default unless an application cipher string requests it.
2429 *) Alter match criteria in PKCS12_parse(). It used to try to use local
2430 key ids to find matching certificates and keys but some PKCS#12 files
2431 don't follow the (somewhat unwritten) rules and this strategy fails.
2432 Now just gather all certificates together and the first private key
2433 then look for the first certificate that matches the key.
2436 *) Support use of registered digest and cipher names for dgst and cipher
2437 commands instead of having to add each one as a special case. So now
2444 openssl dgst -sha256 foo
2446 and this works for ENGINE based algorithms too.
2450 *) Update Gost ENGINE to support parameter files.
2451 [Victor B. Wagner <vitus@cryptocom.ru>]
2453 *) Support GeneralizedTime in ca utility.
2454 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
2456 *) Enhance the hash format used for certificate directory links. The new
2457 form uses the canonical encoding (meaning equivalent names will work
2458 even if they aren't identical) and uses SHA1 instead of MD5. This form
2459 is incompatible with the older format and as a result c_rehash should
2460 be used to rebuild symbolic links.
2463 *) Make PKCS#8 the default write format for private keys, replacing the
2464 traditional format. This form is standardised, more secure and doesn't
2465 include an implicit MD5 dependency.
2468 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
2469 committed to OpenSSL should pass this lot as a minimum.
2472 *) Add session ticket override functionality for use by EAP-FAST.
2473 [Jouni Malinen <j@w1.fi>]
2475 *) Modify HMAC functions to return a value. Since these can be implemented
2476 in an ENGINE errors can occur.
2479 *) Type-checked OBJ_bsearch_ex.
2482 *) Type-checked OBJ_bsearch. Also some constification necessitated
2483 by type-checking. Still to come: TXT_DB, bsearch(?),
2484 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
2488 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
2489 seconds to a tm structure directly, instead of going through OS
2490 specific date routines. This avoids any issues with OS routines such
2491 as the year 2038 bug. New *_adj() functions for ASN1 time structures
2492 and X509_time_adj_ex() to cover the extended range. The existing
2493 X509_time_adj() is still usable and will no longer have any date issues.
2496 *) Delta CRL support. New use deltas option which will attempt to locate
2497 and search any appropriate delta CRLs available.
2499 This work was sponsored by Google.
2502 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
2503 code and add additional score elements. Validate alternate CRL paths
2504 as part of the CRL checking and indicate a new error "CRL path validation
2505 error" in this case. Applications wanting additional details can use
2506 the verify callback and check the new "parent" field. If this is not
2507 NULL CRL path validation is taking place. Existing applications wont
2508 see this because it requires extended CRL support which is off by
2511 This work was sponsored by Google.
2514 *) Support for freshest CRL extension.
2516 This work was sponsored by Google.
2519 *) Initial indirect CRL support. Currently only supported in the CRLs
2520 passed directly and not via lookup. Process certificate issuer
2521 CRL entry extension and lookup CRL entries by bother issuer name
2522 and serial number. Check and process CRL issuer entry in IDP extension.
2524 This work was sponsored by Google.
2527 *) Add support for distinct certificate and CRL paths. The CRL issuer
2528 certificate is validated separately in this case. Only enabled if
2529 an extended CRL support flag is set: this flag will enable additional
2530 CRL functionality in future.
2532 This work was sponsored by Google.
2535 *) Add support for policy mappings extension.
2537 This work was sponsored by Google.
2540 *) Fixes to pathlength constraint, self issued certificate handling,
2541 policy processing to align with RFC3280 and PKITS tests.
2543 This work was sponsored by Google.
2546 *) Support for name constraints certificate extension. DN, email, DNS
2547 and URI types are currently supported.
2549 This work was sponsored by Google.
2552 *) To cater for systems that provide a pointer-based thread ID rather
2553 than numeric, deprecate the current numeric thread ID mechanism and
2554 replace it with a structure and associated callback type. This
2555 mechanism allows a numeric "hash" to be extracted from a thread ID in
2556 either case, and on platforms where pointers are larger than 'long',
2557 mixing is done to help ensure the numeric 'hash' is usable even if it
2558 can't be guaranteed unique. The default mechanism is to use "&errno"
2559 as a pointer-based thread ID to distinguish between threads.
2561 Applications that want to provide their own thread IDs should now use
2562 CRYPTO_THREADID_set_callback() to register a callback that will call
2563 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
2565 Note that ERR_remove_state() is now deprecated, because it is tied
2566 to the assumption that thread IDs are numeric. ERR_remove_state(0)
2567 to free the current thread's error state should be replaced by
2568 ERR_remove_thread_state(NULL).
2570 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
2571 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
2572 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
2573 application was previously providing a numeric thread callback that
2574 was inappropriate for distinguishing threads, then uniqueness might
2575 have been obtained with &errno that happened immediately in the
2576 intermediate development versions of OpenSSL; this is no longer the
2577 case, the numeric thread callback will now override the automatic use
2579 [Geoff Thorpe, with help from Bodo Moeller]
2581 *) Initial support for different CRL issuing certificates. This covers a
2582 simple case where the self issued certificates in the chain exist and
2583 the real CRL issuer is higher in the existing chain.
2585 This work was sponsored by Google.
2588 *) Removed effectively defunct crypto/store from the build.
2591 *) Revamp of STACK to provide stronger type-checking. Still to come:
2592 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
2593 ASN1_STRING, CONF_VALUE.
2596 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
2597 RAM on SSL connections. This option can save about 34k per idle SSL.
2600 *) Revamp of LHASH to provide stronger type-checking. Still to come:
2601 STACK, TXT_DB, bsearch, qsort.
2604 *) Initial support for Cryptographic Message Syntax (aka CMS) based
2605 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
2606 support for data, signedData, compressedData, digestedData and
2607 encryptedData, envelopedData types included. Scripts to check against
2608 RFC4134 examples draft and interop and consistency checks of many
2609 content types and variants.
2612 *) Add options to enc utility to support use of zlib compression BIO.
2615 *) Extend mk1mf to support importing of options and assembly language
2616 files from Configure script, currently only included in VC-WIN32.
2617 The assembly language rules can now optionally generate the source
2618 files from the associated perl scripts.
2621 *) Implement remaining functionality needed to support GOST ciphersuites.
2622 Interop testing has been performed using CryptoPro implementations.
2623 [Victor B. Wagner <vitus@cryptocom.ru>]
2625 *) s390x assembler pack.
2628 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
2632 *) Implement Opaque PRF Input TLS extension as specified in
2633 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
2634 official specification yet and no extension type assignment by
2635 IANA exists, this extension (for now) will have to be explicitly
2636 enabled when building OpenSSL by providing the extension number
2637 to use. For example, specify an option
2639 -DTLSEXT_TYPE_opaque_prf_input=0x9527
2641 to the "config" or "Configure" script to enable the extension,
2642 assuming extension number 0x9527 (which is a completely arbitrary
2643 and unofficial assignment based on the MD5 hash of the Internet
2644 Draft). Note that by doing so, you potentially lose
2645 interoperability with other TLS implementations since these might
2646 be using the same extension number for other purposes.
2648 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
2649 opaque PRF input value to use in the handshake. This will create
2650 an interal copy of the length-'len' string at 'src', and will
2651 return non-zero for success.
2653 To get more control and flexibility, provide a callback function
2656 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
2657 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
2661 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
2664 Callback function 'cb' will be called in handshakes, and is
2665 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
2666 Argument 'arg' is for application purposes (the value as given to
2667 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
2668 be provided to the callback function). The callback function
2669 has to return non-zero to report success: usually 1 to use opaque
2670 PRF input just if possible, or 2 to enforce use of the opaque PRF
2671 input. In the latter case, the library will abort the handshake
2672 if opaque PRF input is not successfully negotiated.
2674 Arguments 'peerinput' and 'len' given to the callback function
2675 will always be NULL and 0 in the case of a client. A server will
2676 see the client's opaque PRF input through these variables if
2677 available (NULL and 0 otherwise). Note that if the server
2678 provides an opaque PRF input, the length must be the same as the
2679 length of the client's opaque PRF input.
2681 Note that the callback function will only be called when creating
2682 a new session (session resumption can resume whatever was
2683 previously negotiated), and will not be called in SSL 2.0
2684 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
2685 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
2686 for applications that need to enforce opaque PRF input.
2690 *) Update ssl code to support digests other than SHA1+MD5 for handshake
2693 [Victor B. Wagner <vitus@cryptocom.ru>]
2695 *) Add RFC4507 support to OpenSSL. This includes the corrections in
2696 RFC4507bis. The encrypted ticket format is an encrypted encoded
2697 SSL_SESSION structure, that way new session features are automatically
2700 If a client application caches session in an SSL_SESSION structure
2701 support is transparent because tickets are now stored in the encoded
2704 The SSL_CTX structure automatically generates keys for ticket
2705 protection in servers so again support should be possible
2706 with no application modification.
2708 If a client or server wishes to disable RFC4507 support then the option
2709 SSL_OP_NO_TICKET can be set.
2711 Add a TLS extension debugging callback to allow the contents of any client
2712 or server extensions to be examined.
2714 This work was sponsored by Google.
2717 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
2718 OpenSSL should now compile cleanly on gcc 4.2
2719 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
2721 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
2722 support including streaming MAC support: this is required for GOST
2723 ciphersuite support.
2724 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
2726 *) Add option -stream to use PKCS#7 streaming in smime utility. New
2727 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
2728 to output in BER and PEM format.
2731 *) Experimental support for use of HMAC via EVP_PKEY interface. This
2732 allows HMAC to be handled via the EVP_DigestSign*() interface. The
2733 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
2734 ENGINE support for HMAC keys which are unextractable. New -mac and
2735 -macopt options to dgst utility.
2738 *) New option -sigopt to dgst utility. Update dgst to use
2739 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
2740 alternative signing paramaters such as X9.31 or PSS in the dgst
2744 *) Change ssl_cipher_apply_rule(), the internal function that does
2745 the work each time a ciphersuite string requests enabling
2746 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
2747 removing ("!foo+bar") a class of ciphersuites: Now it maintains
2748 the order of disabled ciphersuites such that those ciphersuites
2749 that most recently went from enabled to disabled not only stay
2750 in order with respect to each other, but also have higher priority
2751 than other disabled ciphersuites the next time ciphersuites are
2754 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
2755 the same ciphersuites as with "HIGH" alone, but in a specific
2756 order where the PSK ciphersuites come first (since they are the
2757 most recently disabled ciphersuites when "HIGH" is parsed).
2759 Also, change ssl_create_cipher_list() (using this new
2760 funcionality) such that between otherwise identical
2761 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
2765 *) Change ssl_create_cipher_list() so that it automatically
2766 arranges the ciphersuites in reasonable order before starting
2767 to process the rule string. Thus, the definition for "DEFAULT"
2768 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
2769 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
2770 This makes it much easier to arrive at a reasonable default order
2771 in applications for which anonymous ciphers are OK (meaning
2772 that you can't actually use DEFAULT).
2773 [Bodo Moeller; suggested by Victor Duchovni]
2775 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
2776 processing) into multiple integers instead of setting
2777 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
2778 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
2779 (These masks as well as the individual bit definitions are hidden
2780 away into the non-exported interface ssl/ssl_locl.h, so this
2781 change to the definition of the SSL_CIPHER structure shouldn't
2782 affect applications.) This give us more bits for each of these
2783 categories, so there is no longer a need to coagulate AES128 and
2784 AES256 into a single algorithm bit, and to coagulate Camellia128
2785 and Camellia256 into a single algorithm bit, which has led to all
2788 Thus, among other things, the kludge introduced in 0.9.7m and
2789 0.9.8e for masking out AES256 independently of AES128 or masking
2790 out Camellia256 independently of AES256 is not needed here in 0.9.9.
2792 With the change, we also introduce new ciphersuite aliases that
2793 so far were missing: "AES128", "AES256", "CAMELLIA128", and
2797 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
2798 Use the leftmost N bytes of the signature input if the input is
2799 larger than the prime q (with N being the size in bytes of q).
2802 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
2803 it yet and it is largely untested.
2806 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
2809 *) Initial incomplete changes to avoid need for function casts in OpenSSL
2810 some compilers (gcc 4.2 and later) reject their use. Safestack is
2811 reimplemented. Update ASN1 to avoid use of legacy functions.
2814 *) Win32/64 targets are linked with Winsock2.
2817 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
2818 to external functions. This can be used to increase CRL handling
2819 efficiency especially when CRLs are very large by (for example) storing
2820 the CRL revoked certificates in a database.
2823 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
2824 new CRLs added to a directory can be used. New command line option
2825 -verify_return_error to s_client and s_server. This causes real errors
2826 to be returned by the verify callback instead of carrying on no matter
2827 what. This reflects the way a "real world" verify callback would behave.
2830 *) GOST engine, supporting several GOST algorithms and public key formats.
2831 Kindly donated by Cryptocom.
2834 *) Partial support for Issuing Distribution Point CRL extension. CRLs
2835 partitioned by DP are handled but no indirect CRL or reason partitioning
2836 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
2837 selected via a scoring technique which handles IDP and AKID in CRLs.
2840 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
2841 will ultimately be used for all verify operations: this will remove the
2842 X509_STORE dependency on certificate verification and allow alternative
2843 lookup methods. X509_STORE based implementations of these two callbacks.
2846 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
2847 Modify get_crl() to find a valid (unexpired) CRL if possible.
2850 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
2851 this would be called X509_CRL_cmp() but that name is already used by
2852 a function that just compares CRL issuer names. Cache several CRL
2853 extensions in X509_CRL structure and cache CRLDP in X509.
2856 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
2857 this maps equivalent X509_NAME structures into a consistent structure.
2858 Name comparison can then be performed rapidly using memcmp().
2861 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
2865 *) Allow digests to supply their own micalg string for S/MIME type using
2866 the ctrl EVP_MD_CTRL_MICALG.
2869 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
2870 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
2871 ctrl. It can then customise the structure before and/or after signing
2875 *) New function OBJ_add_sigid() to allow application defined signature OIDs
2876 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
2877 to free up any added signature OIDs.
2880 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
2881 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
2882 digest and cipher tables. New options added to openssl utility:
2883 list-message-digest-algorithms and list-cipher-algorithms.
2886 *) Change the array representation of binary polynomials: the list
2887 of degrees of non-zero coefficients is now terminated with -1.
2888 Previously it was terminated with 0, which was also part of the
2889 value; thus, the array representation was not applicable to
2890 polynomials where t^0 has coefficient zero. This change makes
2891 the array representation useful in a more general context.
2894 *) Various modifications and fixes to SSL/TLS cipher string
2895 handling. For ECC, the code now distinguishes between fixed ECDH
2896 with RSA certificates on the one hand and with ECDSA certificates
2897 on the other hand, since these are separate ciphersuites. The
2898 unused code for Fortezza ciphersuites has been removed.
2900 For consistency with EDH, ephemeral ECDH is now called "EECDH"
2901 (not "ECDHE"). For consistency with the code for DH
2902 certificates, use of ECDH certificates is now considered ECDH
2903 authentication, not RSA or ECDSA authentication (the latter is
2904 merely the CA's signing algorithm and not actively used in the
2907 The temporary ciphersuite alias "ECCdraft" is no longer
2908 available, and ECC ciphersuites are no longer excluded from "ALL"
2909 and "DEFAULT". The following aliases now exist for RFC 4492
2910 ciphersuites, most of these by analogy with the DH case:
2912 kECDHr - ECDH cert, signed with RSA
2913 kECDHe - ECDH cert, signed with ECDSA
2914 kECDH - ECDH cert (signed with either RSA or ECDSA)
2915 kEECDH - ephemeral ECDH
2916 ECDH - ECDH cert or ephemeral ECDH
2922 AECDH - anonymous ECDH
2923 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
2927 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
2928 Use correct micalg parameters depending on digest(s) in signed message.
2931 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
2932 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
2935 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
2936 an engine to register a method. Add ENGINE lookups for methods and
2937 functional reference processing.
2940 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
2941 EVP_{Sign,Verify}* which allow an application to customise the signature
2945 *) New -resign option to smime utility. This adds one or more signers
2946 to an existing PKCS#7 signedData structure. Also -md option to use an
2947 alternative message digest algorithm for signing.
2950 *) Tidy up PKCS#7 routines and add new functions to make it easier to
2951 create PKCS7 structures containing multiple signers. Update smime
2952 application to support multiple signers.
2955 *) New -macalg option to pkcs12 utility to allow setting of an alternative
2959 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
2960 Reorganize PBE internals to lookup from a static table using NIDs,
2961 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
2962 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
2963 PRF which will be automatically used with PBES2.
2966 *) Replace the algorithm specific calls to generate keys in "req" with the
2970 *) Update PKCS#7 enveloped data routines to use new API. This is now
2971 supported by any public key method supporting the encrypt operation. A
2972 ctrl is added to allow the public key algorithm to examine or modify
2973 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
2977 *) Add a ctrl to asn1 method to allow a public key algorithm to express
2978 a default digest type to use. In most cases this will be SHA1 but some
2979 algorithms (such as GOST) need to specify an alternative digest. The
2980 return value indicates how strong the preference is 1 means optional and
2981 2 is mandatory (that is it is the only supported type). Modify
2982 ASN1_item_sign() to accept a NULL digest argument to indicate it should
2983 use the default md. Update openssl utilities to use the default digest
2984 type for signing if it is not explicitly indicated.
2987 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
2988 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
2989 signing method from the key type. This effectively removes the link
2990 between digests and public key types.
2993 *) Add an OID cross reference table and utility functions. Its purpose is to
2994 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
2995 rsaEncryption. This will allow some of the algorithm specific hackery
2996 needed to use the correct OID to be removed.
2999 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
3000 structures for PKCS7_sign(). They are now set up by the relevant public
3004 *) Add provisional EC pkey method with support for ECDSA and ECDH.
3007 *) Add support for key derivation (agreement) in the API, DH method and
3011 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
3012 public and private key formats. As a side effect these add additional
3013 command line functionality not previously available: DSA signatures can be
3014 generated and verified using pkeyutl and DH key support and generation in
3019 [Oliver Tappe <zooey@hirschkaefer.de>]
3021 *) New make target "install_html_docs" installs HTML renditions of the
3023 [Oliver Tappe <zooey@hirschkaefer.de>]
3025 *) New utility "genpkey" this is analogous to "genrsa" etc except it can
3026 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
3027 support key and parameter generation and add initial key generation
3028 functionality for RSA.
3031 *) Add functions for main EVP_PKEY_method operations. The undocumented
3032 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
3033 EVP_PKEY_{encrypt,decrypt}_old.
3036 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
3037 key API, doesn't do much yet.
3040 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
3041 public key algorithms. New option to openssl utility:
3042 "list-public-key-algorithms" to print out info.
3045 *) Implement the Supported Elliptic Curves Extension for
3046 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
3049 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
3050 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
3053 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
3054 utilities such as rsa, dsa, dsaparam etc except they process any key
3058 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
3059 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
3060 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
3064 *) Initial support for pluggable public key ASN1.
3065 De-spaghettify the public key ASN1 handling. Move public and private
3066 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
3067 algorithm specific handling to a single module within the relevant
3068 algorithm directory. Add functions to allow (near) opaque processing
3069 of public and private key structures.
3072 *) Implement the Supported Point Formats Extension for
3073 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
3076 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
3077 for the psk identity [hint] and the psk callback functions to the
3078 SSL_SESSION, SSL and SSL_CTX structure.
3081 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
3085 SSL_CTX_use_psk_identity_hint
3086 SSL_get_psk_identity_hint
3087 SSL_get_psk_identity
3088 SSL_use_psk_identity_hint
3090 [Mika Kousa and Pasi Eronen of Nokia Corporation]
3092 *) Add RFC 3161 compliant time stamp request creation, response generation
3093 and response verification functionality.
3094 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
3096 *) Add initial support for TLS extensions, specifically for the server_name
3097 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
3098 have new members for a host name. The SSL data structure has an
3099 additional member SSL_CTX *initial_ctx so that new sessions can be
3100 stored in that context to allow for session resumption, even after the
3101 SSL has been switched to a new SSL_CTX in reaction to a client's
3102 server_name extension.
3104 New functions (subject to change):
3106 SSL_get_servername()
3107 SSL_get_servername_type()
3110 New CTRL codes and macros (subject to change):
3112 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
3113 - SSL_CTX_set_tlsext_servername_callback()
3114 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
3115 - SSL_CTX_set_tlsext_servername_arg()
3116 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
3118 openssl s_client has a new '-servername ...' option.
3120 openssl s_server has new options '-servername_host ...', '-cert2 ...',
3121 '-key2 ...', '-servername_fatal' (subject to change). This allows
3122 testing the HostName extension for a specific single host name ('-cert'
3123 and '-key' remain fallbacks for handshakes without HostName
3124 negotiation). If the unrecognized_name alert has to be sent, this by
3125 default is a warning; it becomes fatal with the '-servername_fatal'
3128 [Peter Sylvester, Remy Allais, Christophe Renou]
3130 *) Whirlpool hash implementation is added.
3133 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
3134 bn(64,32). Because of instruction set limitations it doesn't have
3135 any negative impact on performance. This was done mostly in order
3136 to make it possible to share assembler modules, such as bn_mul_mont
3137 implementations, between 32- and 64-bit builds without hassle.
3140 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
3141 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
3145 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
3146 dedicated Montgomery multiplication procedure, is introduced.
3147 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
3148 "64-bit" performance on certain 32-bit targets.
3151 *) New option SSL_OP_NO_COMP to disable use of compression selectively
3152 in SSL structures. New SSL ctrl to set maximum send fragment size.
3153 Save memory by seeting the I/O buffer sizes dynamically instead of
3154 using the maximum available value.
3157 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
3158 in addition to the text details.
3161 *) Very, very preliminary EXPERIMENTAL support for printing of general
3162 ASN1 structures. This currently produces rather ugly output and doesn't
3163 handle several customised structures at all.
3166 *) Integrated support for PVK file format and some related formats such
3167 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
3168 these in the 'rsa' and 'dsa' utilities.
3171 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
3174 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
3175 place for the (very old) "NETSCAPE" format certificates which are now
3176 handled using new ASN1 code equivalents.
3179 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
3180 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
3181 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
3184 *) Modify CRL distribution points extension code to print out previously
3185 unsupported fields. Enhance extension setting code to allow setting of
3189 *) Add print and set support for Issuing Distribution Point CRL extension.
3192 *) Change 'Configure' script to enable Camellia by default.
3195 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
3197 *) When rejecting SSL/TLS records due to an incorrect version number, never
3198 update s->server with a new major version number. As of
3199 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
3200 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
3201 the previous behavior could result in a read attempt at NULL when
3202 receiving specific incorrect SSL/TLS records once record payload
3203 protection is active. (CVE-2010-0740)
3204 [Bodo Moeller, Adam Langley <agl@chromium.org>]
3206 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
3207 could be crashed if the relevant tables were not present (e.g. chrooted).
3208 [Tomas Hoger <thoger@redhat.com>]
3210 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
3212 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
3213 [Martin Olsson, Neel Mehta]
3215 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
3216 accommodate for stack sorting, always a write lock!).
3219 *) On some versions of WIN32 Heap32Next is very slow. This can cause
3220 excessive delays in the RAND_poll(): over a minute. As a workaround
3221 include a time check in the inner Heap32Next loop too.
3224 *) The code that handled flushing of data in SSL/TLS originally used the
3225 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
3226 the problem outlined in PR#1949. The fix suggested there however can
3227 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
3228 of Apache). So instead simplify the code to flush unconditionally.
3229 This should be fine since flushing with no data to flush is a no op.
3232 *) Handle TLS versions 2.0 and later properly and correctly use the
3233 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
3234 off ancient servers have a habit of sticking around for a while...
3237 *) Modify compression code so it frees up structures without using the
3238 ex_data callbacks. This works around a problem where some applications
3239 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
3240 restarting) then use compression (e.g. SSL with compression) later.
3241 This results in significant per-connection memory leaks and
3242 has caused some security issues including CVE-2008-1678 and
3246 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
3247 change when encrypting or decrypting.
3250 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
3251 connect and renegotiate with servers which do not support RI.
3252 Until RI is more widely deployed this option is enabled by default.
3255 *) Add "missing" ssl ctrls to clear options and mode.
3258 *) If client attempts to renegotiate and doesn't support RI respond with
3259 a no_renegotiation alert as required by RFC5746. Some renegotiating
3260 TLS clients will continue a connection gracefully when they receive
3261 the alert. Unfortunately OpenSSL mishandled this alert and would hang
3262 waiting for a server hello which it will never receive. Now we treat a
3263 received no_renegotiation alert as a fatal error. This is because
3264 applications requesting a renegotiation might well expect it to succeed
3265 and would have no code in place to handle the server denying it so the
3266 only safe thing to do is to terminate the connection.
3269 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
3270 peer supports secure renegotiation and 0 otherwise. Print out peer
3271 renegotiation support in s_client/s_server.
3274 *) Replace the highly broken and deprecated SPKAC certification method with
3275 the updated NID creation version. This should correctly handle UTF8.
3278 *) Implement RFC5746. Re-enable renegotiation but require the extension
3279 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
3280 turns out to be a bad idea. It has been replaced by
3281 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
3282 SSL_CTX_set_options(). This is really not recommended unless you
3283 know what you are doing.
3284 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
3286 *) Fixes to stateless session resumption handling. Use initial_ctx when
3287 issuing and attempting to decrypt tickets in case it has changed during
3288 servername handling. Use a non-zero length session ID when attempting
3289 stateless session resumption: this makes it possible to determine if
3290 a resumption has occurred immediately after receiving server hello
3291 (several places in OpenSSL subtly assume this) instead of later in
3295 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
3296 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
3297 fixes for a few places where the return code is not checked
3299 [Julia Lawall <julia@diku.dk>]
3301 *) Add --strict-warnings option to Configure script to include devteam
3302 warnings in other configurations.
3305 *) Add support for --libdir option and LIBDIR variable in makefiles. This
3306 makes it possible to install openssl libraries in locations which
3307 have names other than "lib", for example "/usr/lib64" which some
3309 [Steve Henson, based on patch from Jeremy Utley]
3311 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
3312 X690 8.9.12 and can produce some misleading textual output of OIDs.
3313 [Steve Henson, reported by Dan Kaminsky]
3315 *) Delete MD2 from algorithm tables. This follows the recommendation in
3316 several standards that it is not used in new applications due to
3317 several cryptographic weaknesses. For binary compatibility reasons
3318 the MD2 API is still compiled in by default.
3321 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
3325 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
3326 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
3328 [Guenter <lists@gknw.net>]
3330 *) Fix the server certificate chain building code to use X509_verify_cert(),
3331 it used to have an ad-hoc builder which was unable to cope with anything
3332 other than a simple chain.
3333 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
3335 *) Don't check self signed certificate signatures in X509_verify_cert()
3336 by default (a flag can override this): it just wastes time without
3337 adding any security. As a useful side effect self signed root CAs
3338 with non-FIPS digests are now usable in FIPS mode.
3341 *) In dtls1_process_out_of_seq_message() the check if the current message
3342 is already buffered was missing. For every new message was memory
3343 allocated, allowing an attacker to perform an denial of service attack
3344 with sending out of seq handshake messages until there is no memory
3345 left. Additionally every future messege was buffered, even if the
3346 sequence number made no sense and would be part of another handshake.
3347 So only messages with sequence numbers less than 10 in advance will be
3348 buffered. (CVE-2009-1378)
3349 [Robin Seggelmann, discovered by Daniel Mentz]
3351 *) Records are buffered if they arrive with a future epoch to be
3352 processed after finishing the corresponding handshake. There is
3353 currently no limitation to this buffer allowing an attacker to perform
3354 a DOS attack with sending records with future epochs until there is no
3355 memory left. This patch adds the pqueue_size() function to determine
3356 the size of a buffer and limits the record buffer to 100 entries.
3358 [Robin Seggelmann, discovered by Daniel Mentz]
3360 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
3361 parent structure is freed. (CVE-2009-1379)
3364 *) Handle non-blocking I/O properly in SSL_shutdown() call.
3365 [Darryl Miles <darryl-mailinglists@netbauds.net>]
3368 [Ilya O. <vrghost@gmail.com>]
3370 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
3372 *) Disable renegotiation completely - this fixes a severe security
3373 problem (CVE-2009-3555) at the cost of breaking all
3374 renegotiation. Renegotiation can be re-enabled by setting
3375 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
3376 run-time. This is really not recommended unless you know what
3380 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
3382 *) Don't set val to NULL when freeing up structures, it is freed up by
3383 underlying code. If sizeof(void *) > sizeof(long) this can result in
3384 zeroing past the valid field. (CVE-2009-0789)
3385 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
3387 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
3388 checked correctly. This would allow some invalid signed attributes to
3389 appear to verify correctly. (CVE-2009-0591)
3390 [Ivan Nestlerode <inestlerode@us.ibm.com>]
3392 *) Reject UniversalString and BMPString types with invalid lengths. This
3393 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
3394 a legal length. (CVE-2009-0590)
3397 *) Set S/MIME signing as the default purpose rather than setting it
3398 unconditionally. This allows applications to override it at the store
3402 *) Permit restricted recursion of ASN1 strings. This is needed in practice
3403 to handle some structures.
3406 *) Improve efficiency of mem_gets: don't search whole buffer each time
3408 [Jeremy Shapiro <jnshapir@us.ibm.com>]
3410 *) New -hex option for openssl rand.
3413 *) Print out UTF8String and NumericString when parsing ASN1.
3416 *) Support NumericString type for name components.
3419 *) Allow CC in the environment to override the automatically chosen
3420 compiler. Note that nothing is done to ensure flags work with the
3424 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
3426 *) Properly check EVP_VerifyFinal() and similar return values
3428 [Ben Laurie, Bodo Moeller, Google Security Team]
3430 *) Enable TLS extensions by default.
3433 *) Allow the CHIL engine to be loaded, whether the application is
3434 multithreaded or not. (This does not release the developer from the
3435 obligation to set up the dynamic locking callbacks.)
3436 [Sander Temme <sander@temme.net>]
3438 *) Use correct exit code if there is an error in dgst command.
3439 [Steve Henson; problem pointed out by Roland Dirlewanger]
3441 *) Tweak Configure so that you need to say "experimental-jpake" to enable
3442 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
3445 *) Add experimental JPAKE support, including demo authentication in
3446 s_client and s_server.
3449 *) Set the comparison function in v3_addr_canonize().
3450 [Rob Austein <sra@hactrn.net>]
3452 *) Add support for XMPP STARTTLS in s_client.
3453 [Philip Paeps <philip@freebsd.org>]
3455 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
3456 to ensure that even with this option, only ciphersuites in the
3457 server's preference list will be accepted. (Note that the option
3458 applies only when resuming a session, so the earlier behavior was
3459 just about the algorithm choice for symmetric cryptography.)
3462 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
3464 *) Fix NULL pointer dereference if a DTLS server received
3465 ChangeCipherSpec as first record (CVE-2009-1386).
3468 *) Fix a state transition in s3_srvr.c and d1_srvr.c
3469 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
3472 *) The fix in 0.9.8c that supposedly got rid of unsafe
3473 double-checked locking was incomplete for RSA blinding,
3474 addressing just one layer of what turns out to have been
3475 doubly unsafe triple-checked locking.
3477 So now fix this for real by retiring the MONT_HELPER macro
3478 in crypto/rsa/rsa_eay.c.
3480 [Bodo Moeller; problem pointed out by Marius Schilder]
3482 *) Various precautionary measures:
3484 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
3486 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
3487 (NB: This would require knowledge of the secret session ticket key
3488 to exploit, in which case you'd be SOL either way.)
3490 - Change bn_nist.c so that it will properly handle input BIGNUMs
3491 outside the expected range.
3493 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
3496 [Neel Mehta, Bodo Moeller]
3498 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
3499 the load fails. Useful for distros.
3500 [Ben Laurie and the FreeBSD team]
3502 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
3505 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
3508 *) Expand ENGINE to support engine supplied SSL client certificate functions.
3510 This work was sponsored by Logica.
3513 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
3514 keystores. Support for SSL/TLS client authentication too.
3515 Not compiled unless enable-capieng specified to Configure.
3517 This work was sponsored by Logica.
3520 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
3521 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
3522 attribute creation routines such as certifcate requests and PKCS#12
3526 Changes between 0.9.8g and 0.9.8h [28 May 2008]
3528 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
3529 handshake which could lead to a cilent crash as found using the
3530 Codenomicon TLS test suite (CVE-2008-1672)
3531 [Steve Henson, Mark Cox]
3533 *) Fix double free in TLS server name extensions which could lead to
3534 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
3537 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
3539 Clear the error queue to ensure that error entries left from
3540 older function calls do not interfere with the correct operation.
3541 [Lutz Jaenicke, Erik de Castro Lopo]
3543 *) Remove root CA certificates of commercial CAs:
3545 The OpenSSL project does not recommend any specific CA and does not
3546 have any policy with respect to including or excluding any CA.
3547 Therefore it does not make any sense to ship an arbitrary selection
3548 of root CA certificates with the OpenSSL software.
3551 *) RSA OAEP patches to fix two separate invalid memory reads.
3552 The first one involves inputs when 'lzero' is greater than
3553 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
3554 before the beginning of from). The second one involves inputs where
3555 the 'db' section contains nothing but zeroes (there is a one-byte
3556 invalid read after the end of 'db').
3557 [Ivan Nestlerode <inestlerode@us.ibm.com>]
3559 *) Partial backport from 0.9.9-dev:
3561 Introduce bn_mul_mont (dedicated Montgomery multiplication
3562 procedure) as a candidate for BIGNUM assembler implementation.
3563 While 0.9.9-dev uses assembler for various architectures, only
3564 x86_64 is available by default here in the 0.9.8 branch, and
3565 32-bit x86 is available through a compile-time setting.
3567 To try the 32-bit x86 assembler implementation, use Configure
3568 option "enable-montasm" (which exists only for this backport).
3570 As "enable-montasm" for 32-bit x86 disclaims code stability
3571 anyway, in this constellation we activate additional code
3572 backported from 0.9.9-dev for further performance improvements,
3573 namely BN_from_montgomery_word. (To enable this otherwise,
3574 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
3576 [Andy Polyakov (backport partially by Bodo Moeller)]
3578 *) Add TLS session ticket callback. This allows an application to set
3579 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
3580 values. This is useful for key rollover for example where several key
3581 sets may exist with different names.
3584 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
3585 This was broken until now in 0.9.8 releases, such that the only way
3586 a registered ENGINE could be used (assuming it initialises
3587 successfully on the host) was to explicitly set it as the default
3588 for the relevant algorithms. This is in contradiction with 0.9.7
3589 behaviour and the documentation. With this fix, when an ENGINE is
3590 registered into a given algorithm's table of implementations, the
3591 'uptodate' flag is reset so that auto-discovery will be used next
3592 time a new context for that algorithm attempts to select an
3594 [Ian Lister (tweaked by Geoff Thorpe)]
3596 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
3597 implemention in the following ways:
3599 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
3602 Lack of BER streaming support means one pass streaming processing is
3603 only supported if data is detached: setting the streaming flag is
3604 ignored for embedded content.
3606 CMS support is disabled by default and must be explicitly enabled
3607 with the enable-cms configuration option.
3610 *) Update the GMP engine glue to do direct copies between BIGNUM and
3611 mpz_t when openssl and GMP use the same limb size. Otherwise the
3612 existing "conversion via a text string export" trick is still used.
3613 [Paul Sheer <paulsheer@gmail.com>]
3615 *) Zlib compression BIO. This is a filter BIO which compressed and
3616 uncompresses any data passed through it.
3619 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
3620 RFC3394 compatible AES key wrapping.
3623 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
3624 sets string data without copying. X509_ALGOR_set0() and
3625 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
3626 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
3627 from an X509_ATTRIBUTE structure optionally checking it occurs only
3628 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
3632 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
3633 to get the expected BN_FLG_CONSTTIME behavior.
3634 [Bodo Moeller (Google)]
3638 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
3639 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
3640 - added some more tests to do_tests.pl
3641 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
3642 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
3643 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
3644 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
3645 - various changes to netware.pl to enable gcc-cross builds on Win32
3647 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
3648 - various changes to fix missing prototype warnings
3649 - fixed x86nasm.pl to create correct asm files for NASM COFF output
3650 - added AES, WHIRLPOOL and CPUID assembler code to build files
3651 - added missing AES assembler make rules to mk1mf.pl
3652 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
3653 [Guenter Knauf <eflash@gmx.net>]
3655 *) Implement certificate status request TLS extension defined in RFC3546.
3656 A client can set the appropriate parameters and receive the encoded
3657 OCSP response via a callback. A server can query the supplied parameters
3658 and set the encoded OCSP response in the callback. Add simplified examples
3659 to s_client and s_server.
3662 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
3664 *) Fix various bugs:
3665 + Binary incompatibility of ssl_ctx_st structure
3666 + DTLS interoperation with non-compliant servers
3667 + Don't call get_session_cb() without proposed session
3668 + Fix ia64 assembler code
3669 [Andy Polyakov, Steve Henson]
3671 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
3673 *) DTLS Handshake overhaul. There were longstanding issues with
3674 OpenSSL DTLS implementation, which were making it impossible for
3675 RFC 4347 compliant client to communicate with OpenSSL server.
3676 Unfortunately just fixing these incompatibilities would "cut off"
3677 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
3678 server keeps tolerating non RFC compliant syntax. The opposite is
3679 not true, 0.9.8f client can not communicate with earlier server.
3680 This update even addresses CVE-2007-4995.
3683 *) Changes to avoid need for function casts in OpenSSL: some compilers
3684 (gcc 4.2 and later) reject their use.
3685 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
3688 *) Add RFC4507 support to OpenSSL. This includes the corrections in
3689 RFC4507bis. The encrypted ticket format is an encrypted encoded
3690 SSL_SESSION structure, that way new session features are automatically
3693 If a client application caches session in an SSL_SESSION structure
3694 support is transparent because tickets are now stored in the encoded
3697 The SSL_CTX structure automatically generates keys for ticket
3698 protection in servers so again support should be possible
3699 with no application modification.
3701 If a client or server wishes to disable RFC4507 support then the option
3702 SSL_OP_NO_TICKET can be set.
3704 Add a TLS extension debugging callback to allow the contents of any client
3705 or server extensions to be examined.
3707 This work was sponsored by Google.
3710 *) Add initial support for TLS extensions, specifically for the server_name
3711 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
3712 have new members for a host name. The SSL data structure has an
3713 additional member SSL_CTX *initial_ctx so that new sessions can be
3714 stored in that context to allow for session resumption, even after the
3715 SSL has been switched to a new SSL_CTX in reaction to a client's
3716 server_name extension.
3718 New functions (subject to change):
3720 SSL_get_servername()
3721 SSL_get_servername_type()
3724 New CTRL codes and macros (subject to change):
3726 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
3727 - SSL_CTX_set_tlsext_servername_callback()
3728 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
3729 - SSL_CTX_set_tlsext_servername_arg()
3730 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
3732 openssl s_client has a new '-servername ...' option.
3734 openssl s_server has new options '-servername_host ...', '-cert2 ...',
3735 '-key2 ...', '-servername_fatal' (subject to change). This allows
3736 testing the HostName extension for a specific single host name ('-cert'
3737 and '-key' remain fallbacks for handshakes without HostName
3738 negotiation). If the unrecognized_name alert has to be sent, this by
3739 default is a warning; it becomes fatal with the '-servername_fatal'
3742 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
3744 *) Add AES and SSE2 assembly language support to VC++ build.
3747 *) Mitigate attack on final subtraction in Montgomery reduction.
3750 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
3751 (which previously caused an internal error).
3754 *) Squeeze another 10% out of IGE mode when in != out.
3757 *) AES IGE mode speedup.
3758 [Dean Gaudet (Google)]
3760 *) Add the Korean symmetric 128-bit cipher SEED (see
3761 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
3762 add SEED ciphersuites from RFC 4162:
3764 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
3765 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
3766 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
3767 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
3769 To minimize changes between patchlevels in the OpenSSL 0.9.8
3770 series, SEED remains excluded from compilation unless OpenSSL
3771 is configured with 'enable-seed'.
3772 [KISA, Bodo Moeller]
3774 *) Mitigate branch prediction attacks, which can be practical if a
3775 single processor is shared, allowing a spy process to extract
3776 information. For detailed background information, see
3777 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
3778 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
3779 and Necessary Software Countermeasures"). The core of the change
3780 are new versions BN_div_no_branch() and
3781 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
3782 respectively, which are slower, but avoid the security-relevant
3783 conditional branches. These are automatically called by BN_div()
3784 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
3785 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
3786 remove a conditional branch.
3788 BN_FLG_CONSTTIME is the new name for the previous
3789 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
3790 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
3791 in the exponent causes BN_mod_exp_mont() to use the alternative
3792 implementation in BN_mod_exp_mont_consttime().) The old name
3793 remains as a deprecated alias.
3795 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
3796 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
3797 constant-time implementations for more than just exponentiation.
3798 Here too the old name is kept as a deprecated alias.
3800 BN_BLINDING_new() will now use BN_dup() for the modulus so that
3801 the BN_BLINDING structure gets an independent copy of the
3802 modulus. This means that the previous "BIGNUM *m" argument to
3803 BN_BLINDING_new() and to BN_BLINDING_create_param() now
3804 essentially becomes "const BIGNUM *m", although we can't actually
3805 change this in the header file before 0.9.9. It allows
3806 RSA_setup_blinding() to use BN_with_flags() on the modulus to
3807 enable BN_FLG_CONSTTIME.
3809 [Matthew D Wood (Intel Corp)]
3811 *) In the SSL/TLS server implementation, be strict about session ID
3812 context matching (which matters if an application uses a single
3813 external cache for different purposes). Previously,
3814 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
3815 set. This did ensure strict client verification, but meant that,
3816 with applications using a single external cache for quite
3817 different requirements, clients could circumvent ciphersuite
3818 restrictions for a given session ID context by starting a session
3819 in a different context.
3822 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3823 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3824 authentication-only ciphersuites.
3827 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
3828 not complete and could lead to a possible single byte overflow
3829 (CVE-2007-5135) [Ben Laurie]
3831 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
3833 *) Since AES128 and AES256 (and similarly Camellia128 and
3834 Camellia256) share a single mask bit in the logic of
3835 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3836 kludge to work properly if AES128 is available and AES256 isn't
3837 (or if Camellia128 is available and Camellia256 isn't).
3840 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
3841 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
3842 When a point or a seed is encoded in a BIT STRING, we need to
3843 prevent the removal of trailing zero bits to get the proper DER
3844 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
3845 of a NamedBitList, for which trailing 0 bits need to be removed.)
3848 *) Have SSL/TLS server implementation tolerate "mismatched" record
3849 protocol version while receiving ClientHello even if the
3850 ClientHello is fragmented. (The server can't insist on the
3851 particular protocol version it has chosen before the ServerHello
3852 message has informed the client about his choice.)
3855 *) Add RFC 3779 support.
3856 [Rob Austein for ARIN, Ben Laurie]
3858 *) Load error codes if they are not already present instead of using a
3859 static variable. This allows them to be cleanly unloaded and reloaded.
3860 Improve header file function name parsing.
3863 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
3864 or CAPABILITY handshake as required by RFCs.
3867 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
3869 *) Introduce limits to prevent malicious keys being able to
3870 cause a denial of service. (CVE-2006-2940)
3871 [Steve Henson, Bodo Moeller]
3873 *) Fix ASN.1 parsing of certain invalid structures that can result
3874 in a denial of service. (CVE-2006-2937) [Steve Henson]
3876 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3877 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3879 *) Fix SSL client code which could crash if connecting to a
3880 malicious SSLv2 server. (CVE-2006-4343)
3881 [Tavis Ormandy and Will Drewry, Google Security Team]
3883 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
3884 match only those. Before that, "AES256-SHA" would be interpreted
3885 as a pattern and match "AES128-SHA" too (since AES128-SHA got
3886 the same strength classification in 0.9.7h) as we currently only
3887 have a single AES bit in the ciphersuite description bitmap.
3888 That change, however, also applied to ciphersuite strings such as
3889 "RC4-MD5" that intentionally matched multiple ciphersuites --
3890 namely, SSL 2.0 ciphersuites in addition to the more common ones
3891 from SSL 3.0/TLS 1.0.
3893 So we change the selection algorithm again: Naming an explicit
3894 ciphersuite selects this one ciphersuite, and any other similar
3895 ciphersuite (same bitmap) from *other* protocol versions.
3896 Thus, "RC4-MD5" again will properly select both the SSL 2.0
3897 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
3899 Since SSL 2.0 does not have any ciphersuites for which the
3900 128/256 bit distinction would be relevant, this works for now.
3901 The proper fix will be to use different bits for AES128 and
3902 AES256, which would have avoided the problems from the beginning;
3903 however, bits are scarce, so we can only do this in a new release
3904 (not just a patchlevel) when we can change the SSL_CIPHER
3905 definition to split the single 'unsigned long mask' bitmap into
3906 multiple values to extend the available space.
3910 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
3912 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3913 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3915 *) Add AES IGE and biIGE modes.
3918 *) Change the Unix randomness entropy gathering to use poll() when
3919 possible instead of select(), since the latter has some
3920 undesirable limitations.
3921 [Darryl Miles via Richard Levitte and Bodo Moeller]
3923 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
3924 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
3925 cannot be implicitly activated as part of, e.g., the "AES" alias.
3926 However, please upgrade to OpenSSL 0.9.9[-dev] for
3927 non-experimental use of the ECC ciphersuites to get TLS extension
3928 support, which is required for curve and point format negotiation
3929 to avoid potential handshake problems.
3932 *) Disable rogue ciphersuites:
3934 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3935 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3936 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3938 The latter two were purportedly from
3939 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3942 Also deactivate the remaining ciphersuites from
3943 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3944 unofficial, and the ID has long expired.
3947 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3948 dual-core machines) and other potential thread-safety issues.
3951 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
3952 versions), which is now available for royalty-free use
3953 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
3954 Also, add Camellia TLS ciphersuites from RFC 4132.
3956 To minimize changes between patchlevels in the OpenSSL 0.9.8
3957 series, Camellia remains excluded from compilation unless OpenSSL
3958 is configured with 'enable-camellia'.
3961 *) Disable the padding bug check when compression is in use. The padding
3962 bug check assumes the first packet is of even length, this is not
3963 necessarily true if compresssion is enabled and can result in false
3964 positives causing handshake failure. The actual bug test is ancient
3965 code so it is hoped that implementations will either have fixed it by
3966 now or any which still have the bug do not support compression.
3969 Changes between 0.9.8a and 0.9.8b [04 May 2006]
3971 *) When applying a cipher rule check to see if string match is an explicit
3972 cipher suite and only match that one cipher suite if it is.
3975 *) Link in manifests for VC++ if needed.
3976 [Austin Ziegler <halostatue@gmail.com>]
3978 *) Update support for ECC-based TLS ciphersuites according to
3979 draft-ietf-tls-ecc-12.txt with proposed changes (but without
3980 TLS extensions, which are supported starting with the 0.9.9
3981 branch, not in the OpenSSL 0.9.8 branch).
3984 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
3985 opaque EVP_CIPHER_CTX handling.
3988 *) Fixes and enhancements to zlib compression code. We now only use
3989 "zlib1.dll" and use the default __cdecl calling convention on Win32
3990 to conform with the standards mentioned here:
3991 http://www.zlib.net/DLL_FAQ.txt
3992 Static zlib linking now works on Windows and the new --with-zlib-include
3993 --with-zlib-lib options to Configure can be used to supply the location
3994 of the headers and library. Gracefully handle case where zlib library
3998 *) Several fixes and enhancements to the OID generation code. The old code
3999 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
4000 handle numbers larger than ULONG_MAX, truncated printing and had a
4001 non standard OBJ_obj2txt() behaviour.
4004 *) Add support for building of engines under engine/ as shared libraries
4005 under VC++ build system.
4008 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
4009 Hopefully, we will not see any false combination of paths any more.
4012 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
4014 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
4015 (part of SSL_OP_ALL). This option used to disable the
4016 countermeasure against man-in-the-middle protocol-version
4017 rollback in the SSL 2.0 server implementation, which is a bad
4018 idea. (CVE-2005-2969)
4020 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
4021 for Information Security, National Institute of Advanced Industrial
4022 Science and Technology [AIST], Japan)]
4024 *) Add two function to clear and return the verify parameter flags.
4027 *) Keep cipherlists sorted in the source instead of sorting them at
4028 runtime, thus removing the need for a lock.
4031 *) Avoid some small subgroup attacks in Diffie-Hellman.
4032 [Nick Mathewson and Ben Laurie]
4034 *) Add functions for well-known primes.
4037 *) Extended Windows CE support.
4038 [Satoshi Nakamura and Andy Polyakov]
4040 *) Initialize SSL_METHOD structures at compile time instead of during
4041 runtime, thus removing the need for a lock.
4044 *) Make PKCS7_decrypt() work even if no certificate is supplied by
4045 attempting to decrypt each encrypted key in turn. Add support to
4049 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
4051 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
4054 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
4057 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
4058 key into the same file any more.
4061 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
4064 *) Add -utf8 command line and config file option to 'ca'.
4065 [Stefan <stf@udoma.org]
4067 *) Removed the macro des_crypt(), as it seems to conflict with some
4068 libraries. Use DES_crypt().
4071 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
4072 involves renaming the source and generated shared-libs for
4073 both. The engines will accept the corrected or legacy ids
4074 ('ncipher' and '4758_cca' respectively) when binding. NB,
4075 this only applies when building 'shared'.
4076 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
4078 *) Add attribute functions to EVP_PKEY structure. Modify
4079 PKCS12_create() to recognize a CSP name attribute and
4080 use it. Make -CSP option work again in pkcs12 utility.
4083 *) Add new functionality to the bn blinding code:
4084 - automatic re-creation of the BN_BLINDING parameters after
4085 a fixed number of uses (currently 32)
4086 - add new function for parameter creation
4087 - introduce flags to control the update behaviour of the
4088 BN_BLINDING parameters
4089 - hide BN_BLINDING structure
4090 Add a second BN_BLINDING slot to the RSA structure to improve
4091 performance when a single RSA object is shared among several
4095 *) Add support for DTLS.
4096 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
4098 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
4099 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
4102 *) Remove buggy and incomplete DH cert support from
4103 ssl/ssl_rsa.c and ssl/s3_both.c
4106 *) Use SHA-1 instead of MD5 as the default digest algorithm for
4107 the apps/openssl applications.
4110 *) Compile clean with "-Wall -Wmissing-prototypes
4111 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
4112 DEBUG_SAFESTACK must also be set.
4115 *) Change ./Configure so that certain algorithms can be disabled by default.
4116 The new counterpiece to "no-xxx" is "enable-xxx".
4118 The patented RC5 and MDC2 algorithms will now be disabled unless
4119 "enable-rc5" and "enable-mdc2", respectively, are specified.
4121 (IDEA remains enabled despite being patented. This is because IDEA
4122 is frequently required for interoperability, and there is no license
4123 fee for non-commercial use. As before, "no-idea" can be used to
4124 avoid this algorithm.)
4128 *) Add processing of proxy certificates (see RFC 3820). This work was
4129 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
4130 EGEE (Enabling Grids for E-science in Europe).
4133 *) RC4 performance overhaul on modern architectures/implementations, such
4134 as Intel P4, IA-64 and AMD64.
4137 *) New utility extract-section.pl. This can be used specify an alternative
4138 section number in a pod file instead of having to treat each file as
4139 a separate case in Makefile. This can be done by adding two lines to the
4142 =for comment openssl_section:XXX
4144 The blank line is mandatory.
4148 *) New arguments -certform, -keyform and -pass for s_client and s_server
4149 to allow alternative format key and certificate files and passphrase
4153 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
4154 update associated structures and add various utility functions.
4156 Add new policy related verify parameters, include policy checking in
4157 standard verify code. Enhance 'smime' application with extra parameters
4158 to support policy checking and print out.
4161 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
4162 Nehemiah processors. These extensions support AES encryption in hardware
4163 as well as RNG (though RNG support is currently disabled).
4164 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
4166 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
4169 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
4170 [Andy Polyakov and a number of other people]
4172 *) Improved PowerPC platform support. Most notably BIGNUM assembler
4173 implementation contributed by IBM.
4174 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
4176 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
4177 exponent rather than 'unsigned long'. There is a corresponding change to
4178 the new 'rsa_keygen' element of the RSA_METHOD structure.
4179 [Jelte Jansen, Geoff Thorpe]
4181 *) Functionality for creating the initial serial number file is now
4182 moved from CA.pl to the 'ca' utility with a new option -create_serial.
4184 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
4185 number file to 1, which is bound to cause problems. To avoid
4186 the problems while respecting compatibility between different 0.9.7
4187 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
4188 CA.pl for serial number initialization. With the new release 0.9.8,
4189 we can fix the problem directly in the 'ca' utility.)
4192 *) Reduced header interdepencies by declaring more opaque objects in
4193 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
4194 give fewer recursive includes, which could break lazy source code - so
4195 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
4196 developers should define this symbol when building and using openssl to
4197 ensure they track the recommended behaviour, interfaces, [etc], but
4198 backwards-compatible behaviour prevails when this isn't defined.
4201 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
4204 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
4205 This will generate a random key of the appropriate length based on the
4206 cipher context. The EVP_CIPHER can provide its own random key generation
4207 routine to support keys of a specific form. This is used in the des and
4208 3des routines to generate a key of the correct parity. Update S/MIME
4209 code to use new functions and hence generate correct parity DES keys.
4210 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
4211 valid (weak or incorrect parity).
4214 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
4215 as looking them up. This is useful when the verified structure may contain
4216 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
4217 present unless the new PKCS7_NO_CRL flag is asserted.
4220 *) Extend ASN1 oid configuration module. It now additionally accepts the
4223 shortName = some long name, 1.2.3.4
4226 *) Reimplemented the BN_CTX implementation. There is now no more static
4227 limitation on the number of variables it can handle nor the depth of the
4228 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
4229 information can now expand as required, and rather than having a single
4230 static array of bignums, BN_CTX now uses a linked-list of such arrays
4231 allowing it to expand on demand whilst maintaining the usefulness of
4232 BN_CTX's "bundling".
4235 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
4236 to allow all RSA operations to function using a single BN_CTX.
4239 *) Preliminary support for certificate policy evaluation and checking. This
4240 is initially intended to pass the tests outlined in "Conformance Testing
4241 of Relying Party Client Certificate Path Processing Logic" v1.07.
4244 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
4245 remained unused and not that useful. A variety of other little bignum
4246 tweaks and fixes have also been made continuing on from the audit (see
4250 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
4251 associated ASN1, EVP and SSL functions and old ASN1 macros.
4254 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
4255 and this should never fail. So the return value from the use of
4256 BN_set_word() (which can fail due to needless expansion) is now deprecated;
4257 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
4260 *) BN_CTX_get() should return zero-valued bignums, providing the same
4261 initialised value as BN_new().
4262 [Geoff Thorpe, suggested by Ulf Möller]
4264 *) Support for inhibitAnyPolicy certificate extension.
4267 *) An audit of the BIGNUM code is underway, for which debugging code is
4268 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
4269 is considered valid when processing BIGNUMs, and causes execution to
4270 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
4271 further steps are taken to deliberately pollute unused data in BIGNUM
4272 structures to try and expose faulty code further on. For now, openssl will
4273 (in its default mode of operation) continue to tolerate the inconsistent
4274 forms that it has tolerated in the past, but authors and packagers should
4275 consider trying openssl and their own applications when compiled with
4276 these debugging symbols defined. It will help highlight potential bugs in
4277 their own code, and will improve the test coverage for OpenSSL itself. At
4278 some point, these tighter rules will become openssl's default to improve
4279 maintainability, though the assert()s and other overheads will remain only
4280 in debugging configurations. See bn.h for more details.
4281 [Geoff Thorpe, Nils Larsch, Ulf Möller]
4283 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
4284 that can only be obtained through BN_CTX_new() (which implicitly
4285 initialises it). The presence of this function only made it possible
4286 to overwrite an existing structure (and cause memory leaks).
4289 *) Because of the callback-based approach for implementing LHASH as a
4290 template type, lh_insert() adds opaque objects to hash-tables and
4291 lh_doall() or lh_doall_arg() are typically used with a destructor callback
4292 to clean up those corresponding objects before destroying the hash table
4293 (and losing the object pointers). So some over-zealous constifications in
4294 LHASH have been relaxed so that lh_insert() does not take (nor store) the
4295 objects as "const" and the lh_doall[_arg] callback wrappers are not
4296 prototyped to have "const" restrictions on the object pointers they are
4297 given (and so aren't required to cast them away any more).
4300 *) The tmdiff.h API was so ugly and minimal that our own timing utility
4301 (speed) prefers to use its own implementation. The two implementations
4302 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
4303 its object type properly exposed (MS_TM) instead of casting to/from "char
4304 *". This may still change yet if someone realises MS_TM and "ms_time_***"
4305 aren't necessarily the greatest nomenclatures - but this is what was used
4306 internally to the implementation so I've used that for now.
4309 *) Ensure that deprecated functions do not get compiled when
4310 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
4311 the self-tests were still using deprecated key-generation functions so
4312 these have been updated also.
4315 *) Reorganise PKCS#7 code to separate the digest location functionality
4316 into PKCS7_find_digest(), digest addition into PKCS7_bio_add_digest().
4317 New function PKCS7_set_digest() to set the digest type for PKCS#7
4318 digestedData type. Add additional code to correctly generate the
4319 digestedData type and add support for this type in PKCS7 initialization
4323 *) New function PKCS7_set0_type_other() this initializes a PKCS7
4324 structure of type "other".
4327 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
4328 sure the loop does correctly stop and breaking ("division by zero")
4329 modulus operations are not performed. The (pre-generated) prime
4330 table crypto/bn/bn_prime.h was already correct, but it could not be
4331 re-generated on some platforms because of the "division by zero"
4332 situation in the script.
4333 [Ralf S. Engelschall]
4335 *) Update support for ECC-based TLS ciphersuites according to
4336 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
4337 SHA-1 now is only used for "small" curves (where the
4338 representation of a field element takes up to 24 bytes); for
4339 larger curves, the field element resulting from ECDH is directly
4340 used as premaster secret.
4341 [Douglas Stebila (Sun Microsystems Laboratories)]
4343 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
4344 curve secp160r1 to the tests.
4345 [Douglas Stebila (Sun Microsystems Laboratories)]
4347 *) Add the possibility to load symbols globally with DSO.
4348 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
4350 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
4351 control of the error stack.
4354 *) Add support for STORE in ENGINE.
4357 *) Add the STORE type. The intention is to provide a common interface
4358 to certificate and key stores, be they simple file-based stores, or
4359 HSM-type store, or LDAP stores, or...
4360 NOTE: The code is currently UNTESTED and isn't really used anywhere.
4363 *) Add a generic structure called OPENSSL_ITEM. This can be used to
4364 pass a list of arguments to any function as well as provide a way
4365 for a function to pass data back to the caller.
4368 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
4369 works like BUF_strdup() but can be used to duplicate a portion of
4370 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
4374 *) Add the function sk_find_ex() which works like sk_find(), but will
4375 return an index to an element even if an exact match couldn't be
4376 found. The index is guaranteed to point at the element where the
4377 searched-for key would be inserted to preserve sorting order.
4380 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
4381 takes an extra flags argument for optional functionality. Currently,
4382 the following flags are defined:
4384 OBJ_BSEARCH_VALUE_ON_NOMATCH
4385 This one gets OBJ_bsearch_ex() to return a pointer to the first
4386 element where the comparing function returns a negative or zero
4389 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
4390 This one gets OBJ_bsearch_ex() to return a pointer to the first
4391 element where the comparing function returns zero. This is useful
4392 if there are more than one element where the comparing function
4396 *) Make it possible to create self-signed certificates with 'openssl ca'
4397 in such a way that the self-signed certificate becomes part of the
4398 CA database and uses the same mechanisms for serial number generation
4399 as all other certificate signing. The new flag '-selfsign' enables
4400 this functionality. Adapt CA.sh and CA.pl.in.
4403 *) Add functionality to check the public key of a certificate request
4404 against a given private. This is useful to check that a certificate
4405 request can be signed by that key (self-signing).
4408 *) Make it possible to have multiple active certificates with the same
4409 subject in the CA index file. This is done only if the keyword
4410 'unique_subject' is set to 'no' in the main CA section (default
4411 if 'CA_default') of the configuration file. The value is saved
4412 with the database itself in a separate index attribute file,
4413 named like the index file with '.attr' appended to the name.
4416 *) Generate muti valued AVAs using '+' notation in config files for
4420 *) Support for nameConstraints certificate extension.
4423 *) Support for policyConstraints certificate extension.
4426 *) Support for policyMappings certificate extension.
4429 *) Make sure the default DSA_METHOD implementation only uses its
4430 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
4431 and change its own handlers to be NULL so as to remove unnecessary
4432 indirection. This lets alternative implementations fallback to the
4433 default implementation more easily.
4436 *) Support for directoryName in GeneralName related extensions
4440 *) Make it possible to link applications using Makefile.shared.
4441 Make that possible even when linking against static libraries!
4444 *) Support for single pass processing for S/MIME signing. This now
4445 means that S/MIME signing can be done from a pipe, in addition
4446 cleartext signing (multipart/signed type) is effectively streaming
4447 and the signed data does not need to be all held in memory.
4449 This is done with a new flag PKCS7_STREAM. When this flag is set
4450 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
4451 is done after the data is output (and digests calculated) in
4452 SMIME_write_PKCS7().
4455 *) Add full support for -rpath/-R, both in shared libraries and
4456 applications, at least on the platforms where it's known how
4460 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
4461 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
4462 will now compute a table of multiples of the generator that
4463 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
4464 faster (notably in the case of a single point multiplication,
4465 scalar * generator).
4466 [Nils Larsch, Bodo Moeller]
4468 *) IPv6 support for certificate extensions. The various extensions
4469 which use the IP:a.b.c.d can now take IPv6 addresses using the
4470 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
4474 *) Added an ENGINE that implements RSA by performing private key
4475 exponentiations with the GMP library. The conversions to and from
4476 GMP's mpz_t format aren't optimised nor are any montgomery forms
4477 cached, and on x86 it appears OpenSSL's own performance has caught up.
4478 However there are likely to be other architectures where GMP could
4479 provide a boost. This ENGINE is not built in by default, but it can be
4480 specified at Configure time and should be accompanied by the necessary
4481 linker additions, eg;
4482 ./config -DOPENSSL_USE_GMP -lgmp
4485 *) "openssl engine" will not display ENGINE/DSO load failure errors when
4486 testing availability of engines with "-t" - the old behaviour is
4487 produced by increasing the feature's verbosity with "-tt".
4490 *) ECDSA routines: under certain error conditions uninitialized BN objects
4491 could be freed. Solution: make sure initialization is performed early
4492 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
4496 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
4497 and DH_METHOD (eg. by ENGINE implementations) to override the normal
4498 software implementations. For DSA and DH, parameter generation can
4499 also be overriden by providing the appropriate method callbacks.
4502 *) Change the "progress" mechanism used in key-generation and
4503 primality testing to functions that take a new BN_GENCB pointer in
4504 place of callback/argument pairs. The new API functions have "_ex"
4505 postfixes and the older functions are reimplemented as wrappers for
4506 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
4507 declarations of the old functions to help (graceful) attempts to
4508 migrate to the new functions. Also, the new key-generation API
4509 functions operate on a caller-supplied key-structure and return
4510 success/failure rather than returning a key or NULL - this is to
4511 help make "keygen" another member function of RSA_METHOD etc.
4513 Example for using the new callback interface:
4515 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
4519 BN_GENCB_set(&my_cb, my_callback, my_arg);
4521 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
4522 /* For the meaning of a, b in calls to my_callback(), see the
4523 * documentation of the function that calls the callback.
4524 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
4525 * my_callback should return 1 if it wants BN_is_prime_ex()
4526 * to continue, or 0 to stop.
4531 *) Change the ZLIB compression method to be stateful, and make it
4532 available to TLS with the number defined in
4533 draft-ietf-tls-compression-04.txt.
4536 *) Add the ASN.1 structures and functions for CertificatePair, which
4537 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
4539 CertificatePair ::= SEQUENCE {
4540 forward [0] Certificate OPTIONAL,
4541 reverse [1] Certificate OPTIONAL,
4542 -- at least one of the pair shall be present -- }
4544 Also implement the PEM functions to read and write certificate
4545 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
4547 This needed to be defined, mostly for the sake of the LDAP
4548 attribute crossCertificatePair, but may prove useful elsewhere as
4552 *) Make it possible to inhibit symlinking of shared libraries in
4553 Makefile.shared, for Cygwin's sake.
4556 *) Extend the BIGNUM API by creating a function
4557 void BN_set_negative(BIGNUM *a, int neg);
4558 and a macro that behave like
4559 int BN_is_negative(const BIGNUM *a);
4561 to avoid the need to access 'a->neg' directly in applications.
4564 *) Implement fast modular reduction for pseudo-Mersenne primes
4565 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
4566 EC_GROUP_new_curve_GFp() will now automatically use this
4568 [Nils Larsch <nla@trustcenter.de>]
4570 *) Add new lock type (CRYPTO_LOCK_BN).
4573 *) Change the ENGINE framework to automatically load engines
4574 dynamically from specific directories unless they could be
4575 found to already be built in or loaded. Move all the
4576 current engines except for the cryptodev one to a new
4578 The engines in engines/ are built as shared libraries if
4579 the "shared" options was given to ./Configure or ./config.
4580 Otherwise, they are inserted in libcrypto.a.
4581 /usr/local/ssl/engines is the default directory for dynamic
4582 engines, but that can be overriden at configure time through
4583 the usual use of --prefix and/or --openssldir, and at run
4584 time with the environment variable OPENSSL_ENGINES.
4585 [Geoff Thorpe and Richard Levitte]
4587 *) Add Makefile.shared, a helper makefile to build shared
4588 libraries. Adapt Makefile.org.
4591 *) Add version info to Win32 DLLs.
4592 [Peter 'Luna' Runestig" <peter@runestig.com>]
4594 *) Add new 'medium level' PKCS#12 API. Certificates and keys
4595 can be added using this API to created arbitrary PKCS#12
4596 files while avoiding the low level API.
4598 New options to PKCS12_create(), key or cert can be NULL and
4599 will then be omitted from the output file. The encryption
4600 algorithm NIDs can be set to -1 for no encryption, the mac
4601 iteration count can be set to 0 to omit the mac.
4603 Enhance pkcs12 utility by making the -nokeys and -nocerts
4604 options work when creating a PKCS#12 file. New option -nomac
4605 to omit the mac, NONE can be set for an encryption algorithm.
4606 New code is modified to use the enhanced PKCS12_create()
4607 instead of the low level API.
4610 *) Extend ASN1 encoder to support indefinite length constructed
4611 encoding. This can output sequences tags and octet strings in
4612 this form. Modify pk7_asn1.c to support indefinite length
4613 encoding. This is experimental and needs additional code to
4614 be useful, such as an ASN1 bio and some enhanced streaming
4617 Extend template encode functionality so that tagging is passed
4618 down to the template encoder.
4621 *) Let 'openssl req' fail if an argument to '-newkey' is not
4622 recognized instead of using RSA as a default.
4625 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
4626 As these are not official, they are not included in "ALL";
4627 the "ECCdraft" ciphersuite group alias can be used to select them.
4628 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
4630 *) Add ECDH engine support.
4631 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
4633 *) Add ECDH in new directory crypto/ecdh/.
4634 [Douglas Stebila (Sun Microsystems Laboratories)]
4636 *) Let BN_rand_range() abort with an error after 100 iterations
4637 without success (which indicates a broken PRNG).
4640 *) Change BN_mod_sqrt() so that it verifies that the input value
4641 is really the square of the return value. (Previously,
4642 BN_mod_sqrt would show GIGO behaviour.)
4645 *) Add named elliptic curves over binary fields from X9.62, SECG,
4646 and WAP/WTLS; add OIDs that were still missing.
4648 [Sheueling Chang Shantz and Douglas Stebila
4649 (Sun Microsystems Laboratories)]
4651 *) Extend the EC library for elliptic curves over binary fields
4652 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
4655 EC_GF2m_simple_method
4659 EC_GROUP_new_curve_GF2m
4660 EC_GROUP_set_curve_GF2m
4661 EC_GROUP_get_curve_GF2m
4662 EC_POINT_set_affine_coordinates_GF2m
4663 EC_POINT_get_affine_coordinates_GF2m
4664 EC_POINT_set_compressed_coordinates_GF2m
4666 Point compression for binary fields is disabled by default for
4667 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
4670 As binary polynomials are represented as BIGNUMs, various members
4671 of the EC_GROUP and EC_POINT data structures can be shared
4672 between the implementations for prime fields and binary fields;
4673 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
4674 are essentially identical to their ..._GFp counterparts.
4675 (For simplicity, the '..._GFp' prefix has been dropped from
4676 various internal method names.)
4678 An internal 'field_div' method (similar to 'field_mul' and
4679 'field_sqr') has been added; this is used only for binary fields.
4681 [Sheueling Chang Shantz and Douglas Stebila
4682 (Sun Microsystems Laboratories)]
4684 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
4685 through methods ('mul', 'precompute_mult').
4687 The generic implementations (now internally called 'ec_wNAF_mul'
4688 and 'ec_wNAF_precomputed_mult') remain the default if these
4689 methods are undefined.
4691 [Sheueling Chang Shantz and Douglas Stebila
4692 (Sun Microsystems Laboratories)]
4694 *) New function EC_GROUP_get_degree, which is defined through
4695 EC_METHOD. For curves over prime fields, this returns the bit
4696 length of the modulus.
4698 [Sheueling Chang Shantz and Douglas Stebila
4699 (Sun Microsystems Laboratories)]
4701 *) New functions EC_GROUP_dup, EC_POINT_dup.
4702 (These simply call ..._new and ..._copy).
4704 [Sheueling Chang Shantz and Douglas Stebila
4705 (Sun Microsystems Laboratories)]
4707 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
4708 Polynomials are represented as BIGNUMs (where the sign bit is not
4709 used) in the following functions [macros]:
4712 BN_GF2m_sub [= BN_GF2m_add]
4713 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
4714 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
4715 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
4717 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
4718 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
4719 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
4720 BN_GF2m_cmp [= BN_ucmp]
4722 (Note that only the 'mod' functions are actually for fields GF(2^m).
4723 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
4725 For some functions, an the irreducible polynomial defining a
4726 field can be given as an 'unsigned int[]' with strictly
4727 decreasing elements giving the indices of those bits that are set;
4728 i.e., p[] represents the polynomial
4729 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
4731 p[0] > p[1] > ... > p[k] = 0.
4732 This applies to the following functions:
4737 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
4738 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
4740 BN_GF2m_mod_sqrt_arr
4741 BN_GF2m_mod_solve_quad_arr
4745 Conversion can be performed by the following functions:
4750 bntest.c has additional tests for binary polynomial arithmetic.
4752 Two implementations for BN_GF2m_mod_div() are available.
4753 The default algorithm simply uses BN_GF2m_mod_inv() and
4754 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
4755 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
4756 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
4758 [Sheueling Chang Shantz and Douglas Stebila
4759 (Sun Microsystems Laboratories)]
4761 *) Add new error code 'ERR_R_DISABLED' that can be used when some
4762 functionality is disabled at compile-time.
4763 [Douglas Stebila <douglas.stebila@sun.com>]
4765 *) Change default behaviour of 'openssl asn1parse' so that more
4766 information is visible when viewing, e.g., a certificate:
4768 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
4769 mode the content of non-printable OCTET STRINGs is output in a
4770 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
4771 avoid the appearance of a printable string.
4772 [Nils Larsch <nla@trustcenter.de>]
4774 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
4776 EC_GROUP_set_asn1_flag()
4777 EC_GROUP_get_asn1_flag()
4778 EC_GROUP_set_point_conversion_form()
4779 EC_GROUP_get_point_conversion_form()
4780 These control ASN1 encoding details:
4781 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
4782 has been set to OPENSSL_EC_NAMED_CURVE.
4783 - Points are encoded in uncompressed form by default; options for
4784 asn1_for are as for point2oct, namely
4785 POINT_CONVERSION_COMPRESSED
4786 POINT_CONVERSION_UNCOMPRESSED
4787 POINT_CONVERSION_HYBRID
4789 Also add 'seed' and 'seed_len' members to EC_GROUP with access
4792 EC_GROUP_get0_seed()
4793 EC_GROUP_get_seed_len()
4794 This is used only for ASN1 purposes (so far).
4795 [Nils Larsch <nla@trustcenter.de>]
4797 *) Add 'field_type' member to EC_METHOD, which holds the NID
4798 of the appropriate field type OID. The new function
4799 EC_METHOD_get_field_type() returns this value.
4800 [Nils Larsch <nla@trustcenter.de>]
4805 EC_POINT_point2hex()
4806 EC_POINT_hex2point()
4807 providing useful interfaces to EC_POINT_point2oct() and
4808 EC_POINT_oct2point().
4809 [Nils Larsch <nla@trustcenter.de>]
4811 *) Change internals of the EC library so that the functions
4812 EC_GROUP_set_generator()
4813 EC_GROUP_get_generator()
4814 EC_GROUP_get_order()
4815 EC_GROUP_get_cofactor()
4816 are implemented directly in crypto/ec/ec_lib.c and not dispatched
4817 to methods, which would lead to unnecessary code duplication when
4818 adding different types of curves.
4819 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
4821 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
4822 arithmetic, and such that modified wNAFs are generated
4823 (which avoid length expansion in many cases).
4826 *) Add a function EC_GROUP_check_discriminant() (defined via
4827 EC_METHOD) that verifies that the curve discriminant is non-zero.
4829 Add a function EC_GROUP_check() that makes some sanity tests
4830 on a EC_GROUP, its generator and order. This includes
4831 EC_GROUP_check_discriminant().
4832 [Nils Larsch <nla@trustcenter.de>]
4834 *) Add ECDSA in new directory crypto/ecdsa/.
4836 Add applications 'openssl ecparam' and 'openssl ecdsa'
4837 (these are based on 'openssl dsaparam' and 'openssl dsa').
4839 ECDSA support is also included in various other files across the
4840 library. Most notably,
4841 - 'openssl req' now has a '-newkey ecdsa:file' option;
4842 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
4843 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
4844 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
4845 them suitable for ECDSA where domain parameters must be
4846 extracted before the specific public key;
4847 - ECDSA engine support has been added.
4848 [Nils Larsch <nla@trustcenter.de>]
4850 *) Include some named elliptic curves, and add OIDs from X9.62,
4851 SECG, and WAP/WTLS. Each curve can be obtained from the new
4853 EC_GROUP_new_by_curve_name(),
4854 and the list of available named curves can be obtained with
4855 EC_get_builtin_curves().
4856 Also add a 'curve_name' member to EC_GROUP objects, which can be
4858 EC_GROUP_set_curve_name()
4859 EC_GROUP_get_curve_name()
4860 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
4862 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4863 was actually never needed) and in BN_mul(). The removal in BN_mul()
4864 required a small change in bn_mul_part_recursive() and the addition
4865 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4866 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4867 bn_sub_words() and bn_add_words() except they take arrays with
4871 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
4873 *) Cleanse PEM buffers before freeing them since they may contain
4875 [Benjamin Bennett <ben@psc.edu>]
4877 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
4878 a ciphersuite string such as "DEFAULT:RSA" cannot enable
4879 authentication-only ciphersuites.
4882 *) Since AES128 and AES256 share a single mask bit in the logic of
4883 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
4884 kludge to work properly if AES128 is available and AES256 isn't.
4887 *) Expand security boundary to match 1.1.1 module.
4890 *) Remove redundant features: hash file source, editing of test vectors
4891 modify fipsld to use external fips_premain.c signature.
4894 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
4895 run algorithm test programs.
4898 *) Make algorithm test programs more tolerant of whitespace.
4901 *) Have SSL/TLS server implementation tolerate "mismatched" record
4902 protocol version while receiving ClientHello even if the
4903 ClientHello is fragmented. (The server can't insist on the
4904 particular protocol version it has chosen before the ServerHello
4905 message has informed the client about his choice.)
4908 *) Load error codes if they are not already present instead of using a
4909 static variable. This allows them to be cleanly unloaded and reloaded.
4912 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
4914 *) Introduce limits to prevent malicious keys being able to
4915 cause a denial of service. (CVE-2006-2940)
4916 [Steve Henson, Bodo Moeller]
4918 *) Fix ASN.1 parsing of certain invalid structures that can result
4919 in a denial of service. (CVE-2006-2937) [Steve Henson]
4921 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
4922 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
4924 *) Fix SSL client code which could crash if connecting to a
4925 malicious SSLv2 server. (CVE-2006-4343)
4926 [Tavis Ormandy and Will Drewry, Google Security Team]
4928 *) Change ciphersuite string processing so that an explicit
4929 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
4930 will no longer include "AES128-SHA"), and any other similar
4931 ciphersuite (same bitmap) from *other* protocol versions (so that
4932 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
4933 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
4934 changes from 0.9.8b and 0.9.8d.
4937 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
4939 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
4940 (CVE-2006-4339) [Ben Laurie and Google Security Team]
4942 *) Change the Unix randomness entropy gathering to use poll() when
4943 possible instead of select(), since the latter has some
4944 undesirable limitations.
4945 [Darryl Miles via Richard Levitte and Bodo Moeller]
4947 *) Disable rogue ciphersuites:
4949 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
4950 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
4951 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
4953 The latter two were purportedly from
4954 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
4957 Also deactive the remaining ciphersuites from
4958 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
4959 unofficial, and the ID has long expired.
4962 *) Fix RSA blinding Heisenbug (problems sometimes occured on
4963 dual-core machines) and other potential thread-safety issues.
4966 Changes between 0.9.7i and 0.9.7j [04 May 2006]
4968 *) Adapt fipsld and the build system to link against the validated FIPS
4969 module in FIPS mode.
4972 *) Fixes for VC++ 2005 build under Windows.
4975 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
4976 from a Windows bash shell such as MSYS. It is autodetected from the
4977 "config" script when run from a VC++ environment. Modify standard VC++
4978 build to use fipscanister.o from the GNU make build.
4981 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
4983 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
4984 The value now differs depending on if you build for FIPS or not.
4985 BEWARE! A program linked with a shared FIPSed libcrypto can't be
4986 safely run with a non-FIPSed libcrypto, as it may crash because of
4987 the difference induced by this change.
4990 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
4992 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
4993 (part of SSL_OP_ALL). This option used to disable the
4994 countermeasure against man-in-the-middle protocol-version
4995 rollback in the SSL 2.0 server implementation, which is a bad
4996 idea. (CVE-2005-2969)
4998 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
4999 for Information Security, National Institute of Advanced Industrial
5000 Science and Technology [AIST], Japan)]
5002 *) Minimal support for X9.31 signatures and PSS padding modes. This is
5003 mainly for FIPS compliance and not fully integrated at this stage.
5006 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
5007 the exponentiation using a fixed-length exponent. (Otherwise,
5008 the information leaked through timing could expose the secret key
5009 after many signatures; cf. Bleichenbacher's attack on DSA with
5013 *) Make a new fixed-window mod_exp implementation the default for
5014 RSA, DSA, and DH private-key operations so that the sequence of
5015 squares and multiplies and the memory access pattern are
5016 independent of the particular secret key. This will mitigate
5017 cache-timing and potential related attacks.
5019 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
5020 and this is automatically used by BN_mod_exp_mont() if the new flag
5021 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
5022 will use this BN flag for private exponents unless the flag
5023 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
5024 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
5026 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
5028 *) Change the client implementation for SSLv23_method() and
5029 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
5030 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
5031 (Previously, the SSL 2.0 backwards compatible Client Hello
5032 message format would be used even with SSL_OP_NO_SSLv2.)
5035 *) Add support for smime-type MIME parameter in S/MIME messages which some
5039 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
5040 a threadsafe manner. Modify rsa code to use new function and add calls
5041 to dsa and dh code (which had race conditions before).
5044 *) Include the fixed error library code in the C error file definitions
5045 instead of fixing them up at runtime. This keeps the error code
5046 structures constant.
5049 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
5051 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
5054 *) Fixes for newer kerberos headers. NB: the casts are needed because
5055 the 'length' field is signed on one version and unsigned on another
5056 with no (?) obvious way to tell the difference, without these VC++
5057 complains. Also the "definition" of FAR (blank) is no longer included
5058 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
5059 some needed definitions.
5062 *) Undo Cygwin change.
5065 *) Added support for proxy certificates according to RFC 3820.
5066 Because they may be a security thread to unaware applications,
5067 they must be explicitely allowed in run-time. See
5068 docs/HOWTO/proxy_certificates.txt for further information.
5071 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
5073 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
5074 server and client random values. Previously
5075 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
5076 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
5078 This change has negligible security impact because:
5080 1. Server and client random values still have 24 bytes of pseudo random
5083 2. Server and client random values are sent in the clear in the initial
5086 3. The master secret is derived using the premaster secret (48 bytes in
5087 size for static RSA ciphersuites) as well as client server and random
5090 The OpenSSL team would like to thank the UK NISCC for bringing this issue
5093 [Stephen Henson, reported by UK NISCC]
5095 *) Use Windows randomness collection on Cygwin.
5098 *) Fix hang in EGD/PRNGD query when communication socket is closed
5099 prematurely by EGD/PRNGD.
5100 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
5102 *) Prompt for pass phrases when appropriate for PKCS12 input format.
5105 *) Back-port of selected performance improvements from development
5106 branch, as well as improved support for PowerPC platforms.
5109 *) Add lots of checks for memory allocation failure, error codes to indicate
5110 failure and freeing up memory if a failure occurs.
5111 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
5113 *) Add new -passin argument to dgst.
5116 *) Perform some character comparisons of different types in X509_NAME_cmp:
5117 this is needed for some certificates that reencode DNs into UTF8Strings
5118 (in violation of RFC3280) and can't or wont issue name rollover
5122 *) Make an explicit check during certificate validation to see that
5123 the CA setting in each certificate on the chain is correct. As a
5124 side effect always do the following basic checks on extensions,
5125 not just when there's an associated purpose to the check:
5127 - if there is an unhandled critical extension (unless the user
5128 has chosen to ignore this fault)
5129 - if the path length has been exceeded (if one is set at all)
5130 - that certain extensions fit the associated purpose (if one has
5134 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
5136 *) Avoid a race condition when CRLs are checked in a multi threaded
5137 environment. This would happen due to the reordering of the revoked
5138 entries during signature checking and serial number lookup. Now the
5139 encoding is cached and the serial number sort performed under a lock.
5140 Add new STACK function sk_is_sorted().
5143 *) Add Delta CRL to the extension code.
5146 *) Various fixes to s3_pkt.c so alerts are sent properly.
5147 [David Holmes <d.holmes@f5.com>]
5149 *) Reduce the chances of duplicate issuer name and serial numbers (in
5150 violation of RFC3280) using the OpenSSL certificate creation utilities.
5151 This is done by creating a random 64 bit value for the initial serial
5152 number when a serial number file is created or when a self signed
5153 certificate is created using 'openssl req -x509'. The initial serial
5154 number file is created using 'openssl x509 -next_serial' in CA.pl
5155 rather than being initialized to 1.
5158 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
5160 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5161 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5162 [Joe Orton, Steve Henson]
5164 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
5166 [Joe Orton, Steve Henson]
5168 *) Make it possible to have multiple active certificates with the same
5169 subject in the CA index file. This is done only if the keyword
5170 'unique_subject' is set to 'no' in the main CA section (default
5171 if 'CA_default') of the configuration file. The value is saved
5172 with the database itself in a separate index attribute file,
5173 named like the index file with '.attr' appended to the name.
5176 *) X509 verify fixes. Disable broken certificate workarounds when
5177 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
5178 keyUsage extension present. Don't accept CRLs with unhandled critical
5179 extensions: since verify currently doesn't process CRL extensions this
5180 rejects a CRL with *any* critical extensions. Add new verify error codes
5184 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
5185 A clarification of RFC2560 will require the use of OCTET STRINGs and
5186 some implementations cannot handle the current raw format. Since OpenSSL
5187 copies and compares OCSP nonces as opaque blobs without any attempt at
5188 parsing them this should not create any compatibility issues.
5191 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
5192 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
5193 this HMAC (and other) operations are several times slower than OpenSSL
5197 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
5198 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
5200 *) Use the correct content when signing type "other".
5203 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
5205 *) Fix various bugs revealed by running the NISCC test suite:
5207 Stop out of bounds reads in the ASN1 code when presented with
5208 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5210 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
5212 If verify callback ignores invalid public key errors don't try to check
5213 certificate signature with the NULL public key.
5217 *) New -ignore_err option in ocsp application to stop the server
5218 exiting on the first error in a request.
5221 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5222 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5226 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5227 extra data after the compression methods not only for TLS 1.0
5228 but also for SSL 3.0 (as required by the specification).
5229 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5231 *) Change X509_certificate_type() to mark the key as exported/exportable
5232 when it's 512 *bits* long, not 512 bytes.
5235 *) Change AES_cbc_encrypt() so it outputs exact multiple of
5236 blocks during encryption.
5239 *) Various fixes to base64 BIO and non blocking I/O. On write
5240 flushes were not handled properly if the BIO retried. On read
5241 data was not being buffered properly and had various logic bugs.
5242 This also affects blocking I/O when the data being decoded is a
5246 *) Various S/MIME bugfixes and compatibility changes:
5247 output correct application/pkcs7 MIME type if
5248 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
5249 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
5250 of files as .eml work). Correctly handle very long lines in MIME
5254 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
5256 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5257 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5258 a protocol version number mismatch like a decryption error
5259 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5262 *) Turn on RSA blinding by default in the default implementation
5263 to avoid a timing attack. Applications that don't want it can call
5264 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5265 They would be ill-advised to do so in most cases.
5266 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5268 *) Change RSA blinding code so that it works when the PRNG is not
5269 seeded (in this case, the secret RSA exponent is abused as
5270 an unpredictable seed -- if it is not unpredictable, there
5271 is no point in blinding anyway). Make RSA blinding thread-safe
5272 by remembering the creator's thread ID in rsa->blinding and
5273 having all other threads use local one-time blinding factors
5274 (this requires more computation than sharing rsa->blinding, but
5275 avoids excessive locking; and if an RSA object is not shared
5276 between threads, blinding will still be very fast).
5279 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
5280 ENGINE as defaults for all supported algorithms irrespective of
5281 the 'flags' parameter. 'flags' is now honoured, so applications
5282 should make sure they are passing it correctly.
5285 *) Target "mingw" now allows native Windows code to be generated in
5286 the Cygwin environment as well as with the MinGW compiler.
5289 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
5291 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5292 via timing by performing a MAC computation even if incorrect
5293 block cipher padding has been found. This is a countermeasure
5294 against active attacks where the attacker has to distinguish
5295 between bad padding and a MAC verification error. (CVE-2003-0078)
5297 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5298 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5299 Martin Vuagnoux (EPFL, Ilion)]
5301 *) Make the no-err option work as intended. The intention with no-err
5302 is not to have the whole error stack handling routines removed from
5303 libcrypto, it's only intended to remove all the function name and
5304 reason texts, thereby removing some of the footprint that may not
5305 be interesting if those errors aren't displayed anyway.
5307 NOTE: it's still possible for any application or module to have it's
5308 own set of error texts inserted. The routines are there, just not
5309 used by default when no-err is given.
5312 *) Add support for FreeBSD on IA64.
5313 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
5315 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
5316 Kerberos function mit_des_cbc_cksum(). Before this change,
5317 the value returned by DES_cbc_cksum() was like the one from
5318 mit_des_cbc_cksum(), except the bytes were swapped.
5319 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
5321 *) Allow an application to disable the automatic SSL chain building.
5322 Before this a rather primitive chain build was always performed in
5323 ssl3_output_cert_chain(): an application had no way to send the
5324 correct chain if the automatic operation produced an incorrect result.
5326 Now the chain builder is disabled if either:
5328 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
5330 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
5332 The reasoning behind this is that an application would not want the
5333 auto chain building to take place if extra chain certificates are
5334 present and it might also want a means of sending no additional
5335 certificates (for example the chain has two certificates and the
5339 *) Add the possibility to build without the ENGINE framework.
5340 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
5342 *) Under Win32 gmtime() can return NULL: check return value in
5343 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
5346 *) DSA routines: under certain error conditions uninitialized BN objects
5347 could be freed. Solution: make sure initialization is performed early
5348 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
5349 Nils Larsch <nla@trustcenter.de> via PR#459)
5352 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
5353 checked on reconnect on the client side, therefore session resumption
5354 could still fail with a "ssl session id is different" error. This
5355 behaviour is masked when SSL_OP_ALL is used due to
5356 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
5357 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
5358 followup to PR #377.
5361 *) IA-32 assembler support enhancements: unified ELF targets, support
5362 for SCO/Caldera platforms, fix for Cygwin shared build.
5365 *) Add support for FreeBSD on sparc64. As a consequence, support for
5366 FreeBSD on non-x86 processors is separate from x86 processors on
5367 the config script, much like the NetBSD support.
5368 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
5370 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
5372 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
5375 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
5376 code (06) was taken as the first octet of the session ID and the last
5377 octet was ignored consequently. As a result SSLv2 client side session
5378 caching could not have worked due to the session ID mismatch between
5380 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
5384 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
5385 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
5389 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
5390 seems that in spite of existing for more than a year, many application
5391 author have done nothing to provide the necessary callbacks, which
5392 means that this particular engine will not work properly anywhere.
5393 This is a very unfortunate situation which forces us, in the name
5394 of usability, to give the hw_ncipher.c a static lock, which is part
5396 NOTE: This is for the 0.9.7 series ONLY. This hack will never
5397 appear in 0.9.8 or later. We EXPECT application authors to have
5398 dealt properly with this when 0.9.8 is released (unless we actually
5399 make such changes in the libcrypto locking code that changes will
5400 have to be made anyway).
5403 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
5404 octets have been read, EOF or an error occurs. Without this change
5405 some truncated ASN1 structures will not produce an error.
5408 *) Disable Heimdal support, since it hasn't been fully implemented.
5409 Still give the possibility to force the use of Heimdal, but with
5410 warnings and a request that patches get sent to openssl-dev.
5413 *) Add the VC-CE target, introduce the WINCE sysname, and add
5414 INSTALL.WCE and appropriate conditionals to make it build.
5415 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
5417 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
5418 cygssl-x.y.z.dll, where x, y and z are the major, minor and
5419 edit numbers of the version.
5420 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5422 *) Introduce safe string copy and catenation functions
5423 (BUF_strlcpy() and BUF_strlcat()).
5424 [Ben Laurie (CHATS) and Richard Levitte]
5426 *) Avoid using fixed-size buffers for one-line DNs.
5427 [Ben Laurie (CHATS)]
5429 *) Add BUF_MEM_grow_clean() to avoid information leakage when
5430 resizing buffers containing secrets, and use where appropriate.
5431 [Ben Laurie (CHATS)]
5433 *) Avoid using fixed size buffers for configuration file location.
5434 [Ben Laurie (CHATS)]
5436 *) Avoid filename truncation for various CA files.
5437 [Ben Laurie (CHATS)]
5439 *) Use sizeof in preference to magic numbers.
5440 [Ben Laurie (CHATS)]
5442 *) Avoid filename truncation in cert requests.
5443 [Ben Laurie (CHATS)]
5445 *) Add assertions to check for (supposedly impossible) buffer
5447 [Ben Laurie (CHATS)]
5449 *) Don't cache truncated DNS entries in the local cache (this could
5450 potentially lead to a spoofing attack).
5451 [Ben Laurie (CHATS)]
5453 *) Fix various buffers to be large enough for hex/decimal
5454 representations in a platform independent manner.
5455 [Ben Laurie (CHATS)]
5457 *) Add CRYPTO_realloc_clean() to avoid information leakage when
5458 resizing buffers containing secrets, and use where appropriate.
5459 [Ben Laurie (CHATS)]
5461 *) Add BIO_indent() to avoid much slightly worrying code to do
5463 [Ben Laurie (CHATS)]
5465 *) Convert sprintf()/BIO_puts() to BIO_printf().
5466 [Ben Laurie (CHATS)]
5468 *) buffer_gets() could terminate with the buffer only half
5470 [Ben Laurie (CHATS)]
5472 *) Add assertions to prevent user-supplied crypto functions from
5473 overflowing internal buffers by having large block sizes, etc.
5474 [Ben Laurie (CHATS)]
5476 *) New OPENSSL_assert() macro (similar to assert(), but enabled
5478 [Ben Laurie (CHATS)]
5480 *) Eliminate unused copy of key in RC4.
5481 [Ben Laurie (CHATS)]
5483 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
5484 [Ben Laurie (CHATS)]
5486 *) Fix off-by-one error in EGD path.
5487 [Ben Laurie (CHATS)]
5489 *) If RANDFILE path is too long, ignore instead of truncating.
5490 [Ben Laurie (CHATS)]
5492 *) Eliminate unused and incorrectly sized X.509 structure
5494 [Ben Laurie (CHATS)]
5496 *) Eliminate unused and dangerous function knumber().
5497 [Ben Laurie (CHATS)]
5499 *) Eliminate unused and dangerous structure, KSSL_ERR.
5500 [Ben Laurie (CHATS)]
5502 *) Protect against overlong session ID context length in an encoded
5503 session object. Since these are local, this does not appear to be
5505 [Ben Laurie (CHATS)]
5507 *) Change from security patch (see 0.9.6e below) that did not affect
5508 the 0.9.6 release series:
5510 Remote buffer overflow in SSL3 protocol - an attacker could
5511 supply an oversized master key in Kerberos-enabled versions.
5513 [Ben Laurie (CHATS)]
5515 *) Change the SSL kerb5 codes to match RFC 2712.
5518 *) Make -nameopt work fully for req and add -reqopt switch.
5519 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
5521 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
5522 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
5524 *) Make sure tests can be performed even if the corresponding algorithms
5525 have been removed entirely. This was also the last step to make
5526 OpenSSL compilable with DJGPP under all reasonable conditions.
5527 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
5529 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
5530 to allow version independent disabling of normally unselected ciphers,
5531 which may be activated as a side-effect of selecting a single cipher.
5533 (E.g., cipher list string "RSA" enables ciphersuites that are left
5534 out of "ALL" because they do not provide symmetric encryption.
5535 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
5536 [Lutz Jaenicke, Bodo Moeller]
5538 *) Add appropriate support for separate platform-dependent build
5539 directories. The recommended way to make a platform-dependent
5540 build directory is the following (tested on Linux), maybe with
5543 # Place yourself outside of the OpenSSL source tree. In
5544 # this example, the environment variable OPENSSL_SOURCE
5545 # is assumed to contain the absolute OpenSSL source directory.
5546 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
5547 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
5548 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
5549 mkdir -p `dirname $F`
5550 ln -s $OPENSSL_SOURCE/$F $F
5553 To be absolutely sure not to disturb the source tree, a "make clean"
5554 is a good thing. If it isn't successful, don't worry about it,
5555 it probably means the source directory is very clean.
5558 *) Make sure any ENGINE control commands make local copies of string
5559 pointers passed to them whenever necessary. Otherwise it is possible
5560 the caller may have overwritten (or deallocated) the original string
5561 data when a later ENGINE operation tries to use the stored values.
5562 [Götz Babin-Ebell <babinebell@trustcenter.de>]
5564 *) Improve diagnostics in file reading and command-line digests.
5565 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
5567 *) Add AES modes CFB and OFB to the object database. Correct an
5568 error in AES-CFB decryption.
5571 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
5572 allows existing EVP_CIPHER_CTX structures to be reused after
5573 calling EVP_*Final(). This behaviour is used by encryption
5574 BIOs and some applications. This has the side effect that
5575 applications must explicitly clean up cipher contexts with
5576 EVP_CIPHER_CTX_cleanup() or they will leak memory.
5579 *) Check the values of dna and dnb in bn_mul_recursive before calling
5580 bn_mul_comba (a non zero value means the a or b arrays do not contain
5581 n2 elements) and fallback to bn_mul_normal if either is not zero.
5584 *) Fix escaping of non-ASCII characters when using the -subj option
5585 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
5588 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
5589 form for "surname", serialNumber has no short form.
5590 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
5591 therefore remove "mail" short name for "internet 7".
5592 The OID for unique identifiers in X509 certificates is
5593 x500UniqueIdentifier, not uniqueIdentifier.
5594 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
5597 *) Add an "init" command to the ENGINE config module and auto initialize
5598 ENGINEs. Without any "init" command the ENGINE will be initialized
5599 after all ctrl commands have been executed on it. If init=1 the
5600 ENGINE is initailized at that point (ctrls before that point are run
5601 on the uninitialized ENGINE and after on the initialized one). If
5602 init=0 then the ENGINE will not be iniatialized at all.
5605 *) Fix the 'app_verify_callback' interface so that the user-defined
5606 argument is actually passed to the callback: In the
5607 SSL_CTX_set_cert_verify_callback() prototype, the callback
5608 declaration has been changed from
5611 int (*cb)(X509_STORE_CTX *,void *);
5612 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
5613 i=s->ctx->app_verify_callback(&ctx)
5614 has been changed into
5615 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
5617 To update applications using SSL_CTX_set_cert_verify_callback(),
5618 a dummy argument can be added to their callback functions.
5619 [D. K. Smetters <smetters@parc.xerox.com>]
5621 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
5622 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
5624 *) Add and OPENSSL_LOAD_CONF define which will cause
5625 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
5626 This allows older applications to transparently support certain
5627 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
5628 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
5629 load the config file and OPENSSL_add_all_algorithms_conf() which will
5630 always load it have also been added.
5633 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
5634 Adjust NIDs and EVP layer.
5635 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
5637 *) Config modules support in openssl utility.
5639 Most commands now load modules from the config file,
5640 though in a few (such as version) this isn't done
5641 because it couldn't be used for anything.
5643 In the case of ca and req the config file used is
5644 the same as the utility itself: that is the -config
5645 command line option can be used to specify an
5649 *) Move default behaviour from OPENSSL_config(). If appname is NULL
5650 use "openssl_conf" if filename is NULL use default openssl config file.
5653 *) Add an argument to OPENSSL_config() to allow the use of an alternative
5654 config section name. Add a new flag to tolerate a missing config file
5655 and move code to CONF_modules_load_file().
5658 *) Support for crypto accelerator cards from Accelerated Encryption
5659 Processing, www.aep.ie. (Use engine 'aep')
5660 The support was copied from 0.9.6c [engine] and adapted/corrected
5661 to work with the new engine framework.
5662 [AEP Inc. and Richard Levitte]
5664 *) Support for SureWare crypto accelerator cards from Baltimore
5665 Technologies. (Use engine 'sureware')
5666 The support was copied from 0.9.6c [engine] and adapted
5667 to work with the new engine framework.
5670 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
5671 make the newer ENGINE framework commands for the CHIL engine work.
5672 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
5674 *) Make it possible to produce shared libraries on ReliantUNIX.
5675 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
5677 *) Add the configuration target debug-linux-ppro.
5678 Make 'openssl rsa' use the general key loading routines
5679 implemented in apps.c, and make those routines able to
5680 handle the key format FORMAT_NETSCAPE and the variant
5682 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5684 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5685 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5687 *) Add -keyform to rsautl, and document -engine.
5688 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
5690 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
5691 BIO_R_NO_SUCH_FILE error code rather than the generic
5692 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
5695 *) Add new functions
5697 ERR_peek_last_error_line
5698 ERR_peek_last_error_line_data.
5699 These are similar to
5702 ERR_peek_error_line_data,
5703 but report on the latest error recorded rather than the first one
5704 still in the error queue.
5705 [Ben Laurie, Bodo Moeller]
5707 *) default_algorithms option in ENGINE config module. This allows things
5709 default_algorithms = ALL
5710 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
5713 *) Preliminary ENGINE config module.
5716 *) New experimental application configuration code.
5719 *) Change the AES code to follow the same name structure as all other
5720 symmetric ciphers, and behave the same way. Move everything to
5721 the directory crypto/aes, thereby obsoleting crypto/rijndael.
5722 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
5724 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
5725 [Ben Laurie and Theo de Raadt]
5727 *) Add option to output public keys in req command.
5728 [Massimiliano Pala madwolf@openca.org]
5730 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
5731 (up to about 10% better than before for P-192 and P-224).
5734 *) New functions/macros
5736 SSL_CTX_set_msg_callback(ctx, cb)
5737 SSL_CTX_set_msg_callback_arg(ctx, arg)
5738 SSL_set_msg_callback(ssl, cb)
5739 SSL_set_msg_callback_arg(ssl, arg)
5741 to request calling a callback function
5743 void cb(int write_p, int version, int content_type,
5744 const void *buf, size_t len, SSL *ssl, void *arg)
5746 whenever a protocol message has been completely received
5747 (write_p == 0) or sent (write_p == 1). Here 'version' is the
5748 protocol version according to which the SSL library interprets
5749 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
5750 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
5751 the content type as defined in the SSL 3.0/TLS 1.0 protocol
5752 specification (change_cipher_spec(20), alert(21), handshake(22)).
5753 'buf' and 'len' point to the actual message, 'ssl' to the
5754 SSL object, and 'arg' is the application-defined value set by
5755 SSL[_CTX]_set_msg_callback_arg().
5757 'openssl s_client' and 'openssl s_server' have new '-msg' options
5758 to enable a callback that displays all protocol messages.
5761 *) Change the shared library support so shared libraries are built as
5762 soon as the corresponding static library is finished, and thereby get
5763 openssl and the test programs linked against the shared library.
5764 This still only happens when the keyword "shard" has been given to
5765 the configuration scripts.
5767 NOTE: shared library support is still an experimental thing, and
5768 backward binary compatibility is still not guaranteed.
5769 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
5771 *) Add support for Subject Information Access extension.
5772 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
5774 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
5775 additional bytes when new memory had to be allocated, not just
5776 when reusing an existing buffer.
5779 *) New command line and configuration option 'utf8' for the req command.
5780 This allows field values to be specified as UTF8 strings.
5783 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
5784 runs for the former and machine-readable output for the latter.
5787 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
5788 of the e-mail address in the DN (i.e., it will go into a certificate
5789 extension only). The new configuration file option 'email_in_dn = no'
5790 has the same effect.
5791 [Massimiliano Pala madwolf@openca.org]
5793 *) Change all functions with names starting with des_ to be starting
5794 with DES_ instead. Add wrappers that are compatible with libdes,
5795 but are named _ossl_old_des_*. Finally, add macros that map the
5796 des_* symbols to the corresponding _ossl_old_des_* if libdes
5797 compatibility is desired. If OpenSSL 0.9.6c compatibility is
5798 desired, the des_* symbols will be mapped to DES_*, with one
5801 Since we provide two compatibility mappings, the user needs to
5802 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
5803 compatibility is desired. The default (i.e., when that macro
5804 isn't defined) is OpenSSL 0.9.6c compatibility.
5806 There are also macros that enable and disable the support of old
5807 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
5808 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
5809 are defined, the default will apply: to support the old des routines.
5811 In either case, one must include openssl/des.h to get the correct
5812 definitions. Do not try to just include openssl/des_old.h, that
5815 NOTE: This is a major break of an old API into a new one. Software
5816 authors are encouraged to switch to the DES_ style functions. Some
5817 time in the future, des_old.h and the libdes compatibility functions
5818 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
5819 default), and then completely removed.
5822 *) Test for certificates which contain unsupported critical extensions.
5823 If such a certificate is found during a verify operation it is
5824 rejected by default: this behaviour can be overridden by either
5825 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
5826 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
5827 X509_supported_extension() has also been added which returns 1 if a
5828 particular extension is supported.
5831 *) Modify the behaviour of EVP cipher functions in similar way to digests
5832 to retain compatibility with existing code.
5835 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
5836 compatibility with existing code. In particular the 'ctx' parameter does
5837 not have to be to be initialized before the call to EVP_DigestInit() and
5838 it is tidied up after a call to EVP_DigestFinal(). New function
5839 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
5840 EVP_MD_CTX_copy() changed to not require the destination to be
5841 initialized valid and new function EVP_MD_CTX_copy_ex() added which
5842 requires the destination to be valid.
5844 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
5845 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
5848 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
5849 so that complete 'Handshake' protocol structures are kept in memory
5850 instead of overwriting 'msg_type' and 'length' with 'body' data.
5853 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
5854 [Massimo Santin via Richard Levitte]
5856 *) Major restructuring to the underlying ENGINE code. This includes
5857 reduction of linker bloat, separation of pure "ENGINE" manipulation
5858 (initialisation, etc) from functionality dealing with implementations
5859 of specific crypto iterfaces. This change also introduces integrated
5860 support for symmetric ciphers and digest implementations - so ENGINEs
5861 can now accelerate these by providing EVP_CIPHER and EVP_MD
5862 implementations of their own. This is detailed in crypto/engine/README
5863 as it couldn't be adequately described here. However, there are a few
5864 API changes worth noting - some RSA, DSA, DH, and RAND functions that
5865 were changed in the original introduction of ENGINE code have now
5866 reverted back - the hooking from this code to ENGINE is now a good
5867 deal more passive and at run-time, operations deal directly with
5868 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
5869 dereferencing through an ENGINE pointer any more. Also, the ENGINE
5870 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
5871 they were not being used by the framework as there is no concept of a
5872 BIGNUM_METHOD and they could not be generalised to the new
5873 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
5874 ENGINE_cpy() has been removed as it cannot be consistently defined in
5878 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
5881 *) Change mkdef.pl to sort symbols that get the same entry number,
5882 and make sure the automatically generated functions ERR_load_*
5883 become part of libeay.num as well.
5886 *) New function SSL_renegotiate_pending(). This returns true once
5887 renegotiation has been requested (either SSL_renegotiate() call
5888 or HelloRequest/ClientHello received from the peer) and becomes
5889 false once a handshake has been completed.
5890 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
5891 sends a HelloRequest, but does not ensure that a handshake takes
5892 place. SSL_renegotiate_pending() is useful for checking if the
5893 client has followed the request.)
5896 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
5897 By default, clients may request session resumption even during
5898 renegotiation (if session ID contexts permit); with this option,
5899 session resumption is possible only in the first handshake.
5901 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
5902 more bits available for options that should not be part of
5903 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
5906 *) Add some demos for certificate and certificate request creation.
5909 *) Make maximum certificate chain size accepted from the peer application
5910 settable (SSL*_get/set_max_cert_list()), as proposed by
5911 "Douglas E. Engert" <deengert@anl.gov>.
5914 *) Add support for shared libraries for Unixware-7
5915 (Boyd Lynn Gerber <gerberb@zenez.com>).
5918 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
5919 be done prior to destruction. Use this to unload error strings from
5920 ENGINEs that load their own error strings. NB: This adds two new API
5921 functions to "get" and "set" this destroy handler in an ENGINE.
5924 *) Alter all existing ENGINE implementations (except "openssl" and
5925 "openbsd") to dynamically instantiate their own error strings. This
5926 makes them more flexible to be built both as statically-linked ENGINEs
5927 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
5928 Also, add stub code to each that makes building them as self-contained
5929 shared-libraries easier (see README.ENGINE).
5932 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
5933 implementations into applications that are completely implemented in
5934 self-contained shared-libraries. The "dynamic" ENGINE exposes control
5935 commands that can be used to configure what shared-library to load and
5936 to control aspects of the way it is handled. Also, made an update to
5937 the README.ENGINE file that brings its information up-to-date and
5938 provides some information and instructions on the "dynamic" ENGINE
5939 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
5942 *) Make it possible to unload ranges of ERR strings with a new
5943 "ERR_unload_strings" function.
5946 *) Add a copy() function to EVP_MD.
5949 *) Make EVP_MD routines take a context pointer instead of just the
5950 md_data void pointer.
5953 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
5954 that the digest can only process a single chunk of data
5955 (typically because it is provided by a piece of
5956 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
5957 is only going to provide a single chunk of data, and hence the
5958 framework needn't accumulate the data for oneshot drivers.
5961 *) As with "ERR", make it possible to replace the underlying "ex_data"
5962 functions. This change also alters the storage and management of global
5963 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
5964 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
5965 index counters. The API functions that use this state have been changed
5966 to take a "class_index" rather than pointers to the class's local STACK
5967 and counter, and there is now an API function to dynamically create new
5968 classes. This centralisation allows us to (a) plug a lot of the
5969 thread-safety problems that existed, and (b) makes it possible to clean
5970 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
5971 such data would previously have always leaked in application code and
5972 workarounds were in place to make the memory debugging turn a blind eye
5973 to it. Application code that doesn't use this new function will still
5974 leak as before, but their memory debugging output will announce it now
5975 rather than letting it slide.
5977 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
5978 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
5979 has a return value to indicate success or failure.
5982 *) Make it possible to replace the underlying "ERR" functions such that the
5983 global state (2 LHASH tables and 2 locks) is only used by the "default"
5984 implementation. This change also adds two functions to "get" and "set"
5985 the implementation prior to it being automatically set the first time
5986 any other ERR function takes place. Ie. an application can call "get",
5987 pass the return value to a module it has just loaded, and that module
5988 can call its own "set" function using that value. This means the
5989 module's "ERR" operations will use (and modify) the error state in the
5990 application and not in its own statically linked copy of OpenSSL code.
5993 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
5994 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
5995 the operation, and provides a more encapsulated way for external code
5996 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
5997 to use these functions rather than manually incrementing the counts.
5999 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
6002 *) Add EVP test program.
6005 *) Add symmetric cipher support to ENGINE. Expect the API to change!
6008 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
6009 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
6010 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
6011 These allow a CRL to be built without having to access X509_CRL fields
6012 directly. Modify 'ca' application to use new functions.
6015 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
6016 bug workarounds. Rollback attack detection is a security feature.
6017 The problem will only arise on OpenSSL servers when TLSv1 is not
6018 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
6019 Software authors not wanting to support TLSv1 will have special reasons
6020 for their choice and can explicitly enable this option.
6021 [Bodo Moeller, Lutz Jaenicke]
6023 *) Rationalise EVP so it can be extended: don't include a union of
6024 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
6025 (similar to those existing for EVP_CIPHER_CTX).
6030 EVP_MD_CTX_init(&md); /* new function call */
6031 EVP_DigestInit(&md, EVP_sha1());
6032 EVP_DigestUpdate(&md, in, len);
6033 EVP_DigestFinal(&md, out, NULL);
6034 EVP_MD_CTX_cleanup(&md); /* new function call */
6038 *) Make DES key schedule conform to the usual scheme, as well as
6039 correcting its structure. This means that calls to DES functions
6040 now have to pass a pointer to a des_key_schedule instead of a
6041 plain des_key_schedule (which was actually always a pointer
6044 des_key_schedule ks;
6046 des_set_key_checked(..., &ks);
6047 des_ncbc_encrypt(..., &ks, ...);
6049 (Note that a later change renames 'des_...' into 'DES_...'.)
6052 *) Initial reduction of linker bloat: the use of some functions, such as
6053 PEM causes large amounts of unused functions to be linked in due to
6054 poor organisation. For example pem_all.c contains every PEM function
6055 which has a knock on effect of linking in large amounts of (unused)
6056 ASN1 code. Grouping together similar functions and splitting unrelated
6057 functions prevents this.
6060 *) Cleanup of EVP macros.
6063 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
6064 correct _ecb suffix.
6067 *) Add initial OCSP responder support to ocsp application. The
6068 revocation information is handled using the text based index
6069 use by the ca application. The responder can either handle
6070 requests generated internally, supplied in files (for example
6071 via a CGI script) or using an internal minimal server.
6074 *) Add configuration choices to get zlib compression for TLS.
6077 *) Changes to Kerberos SSL for RFC 2712 compliance:
6078 1. Implemented real KerberosWrapper, instead of just using
6079 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
6080 2. Implemented optional authenticator field of KerberosWrapper.
6082 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
6083 and authenticator structs; see crypto/krb5/.
6085 Generalized Kerberos calls to support multiple Kerberos libraries.
6086 [Vern Staats <staatsvr@asc.hpc.mil>,
6087 Jeffrey Altman <jaltman@columbia.edu>
6088 via Richard Levitte]
6090 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
6091 already does with RSA. testdsa.h now has 'priv_key/pub_key'
6092 values for each of the key sizes rather than having just
6093 parameters (and 'speed' generating keys each time).
6096 *) Speed up EVP routines.
6099 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
6100 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
6101 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
6102 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
6104 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
6105 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
6106 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
6109 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
6111 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
6114 *) Added the OS2-EMX target.
6115 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
6117 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
6118 to support NCONF routines in extension code. New function CONF_set_nconf()
6119 to allow functions which take an NCONF to also handle the old LHASH
6120 structure: this means that the old CONF compatible routines can be
6121 retained (in particular wrt extensions) without having to duplicate the
6122 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
6125 *) Enhance the general user interface with mechanisms for inner control
6126 and with possibilities to have yes/no kind of prompts.
6129 *) Change all calls to low level digest routines in the library and
6130 applications to use EVP. Add missing calls to HMAC_cleanup() and
6131 don't assume HMAC_CTX can be copied using memcpy().
6132 [Verdon Walker <VWalker@novell.com>, Steve Henson]
6134 *) Add the possibility to control engines through control names but with
6135 arbitrary arguments instead of just a string.
6136 Change the key loaders to take a UI_METHOD instead of a callback
6137 function pointer. NOTE: this breaks binary compatibility with earlier
6138 versions of OpenSSL [engine].
6139 Adapt the nCipher code for these new conditions and add a card insertion
6143 *) Enhance the general user interface with mechanisms to better support
6144 dialog box interfaces, application-defined prompts, the possibility
6145 to use defaults (for example default passwords from somewhere else)
6146 and interrupts/cancellations.
6149 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
6150 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
6153 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
6154 tidy up some unnecessarily weird code in 'sk_new()').
6155 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
6157 *) Change the key loading routines for ENGINEs to use the same kind
6158 callback (pem_password_cb) as all other routines that need this
6162 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
6163 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
6164 than this minimum value is recommended.
6167 *) New random seeder for OpenVMS, using the system process statistics
6168 that are easily reachable.
6171 *) Windows apparently can't transparently handle global
6172 variables defined in DLLs. Initialisations such as:
6174 const ASN1_ITEM *it = &ASN1_INTEGER_it;
6176 wont compile. This is used by the any applications that need to
6177 declare their own ASN1 modules. This was fixed by adding the option
6178 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
6179 needed for static libraries under Win32.
6182 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
6183 setting of purpose and trust fields. New X509_STORE trust and
6184 purpose functions and tidy up setting in other SSL functions.
6187 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
6188 structure. These are inherited by X509_STORE_CTX when it is
6189 initialised. This allows various defaults to be set in the
6190 X509_STORE structure (such as flags for CRL checking and custom
6191 purpose or trust settings) for functions which only use X509_STORE_CTX
6192 internally such as S/MIME.
6194 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
6195 trust settings if they are not set in X509_STORE. This allows X509_STORE
6196 purposes and trust (in S/MIME for example) to override any set by default.
6198 Add command line options for CRL checking to smime, s_client and s_server
6202 *) Initial CRL based revocation checking. If the CRL checking flag(s)
6203 are set then the CRL is looked up in the X509_STORE structure and
6204 its validity and signature checked, then if the certificate is found
6205 in the CRL the verify fails with a revoked error.
6207 Various new CRL related callbacks added to X509_STORE_CTX structure.
6209 Command line options added to 'verify' application to support this.
6211 This needs some additional work, such as being able to handle multiple
6212 CRLs with different times, extension based lookup (rather than just
6213 by subject name) and ultimately more complete V2 CRL extension
6217 *) Add a general user interface API (crypto/ui/). This is designed
6218 to replace things like des_read_password and friends (backward
6219 compatibility functions using this new API are provided).
6220 The purpose is to remove prompting functions from the DES code
6221 section as well as provide for prompting through dialog boxes in
6222 a window system and the like.
6225 *) Add "ex_data" support to ENGINE so implementations can add state at a
6226 per-structure level rather than having to store it globally.
6229 *) Make it possible for ENGINE structures to be copied when retrieved by
6230 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
6231 This causes the "original" ENGINE structure to act like a template,
6232 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
6233 operational state can be localised to each ENGINE structure, despite the
6234 fact they all share the same "methods". New ENGINE structures returned in
6235 this case have no functional references and the return value is the single
6236 structural reference. This matches the single structural reference returned
6237 by ENGINE_by_id() normally, when it is incremented on the pre-existing
6241 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
6242 needs to match any other type at all we need to manually clear the
6246 *) Changes to the "openssl engine" utility to include;
6247 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
6248 about an ENGINE's available control commands.
6249 - executing control commands from command line arguments using the
6250 '-pre' and '-post' switches. '-post' is only used if '-t' is
6251 specified and the ENGINE is successfully initialised. The syntax for
6252 the individual commands are colon-separated, for example;
6253 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
6256 *) New dynamic control command support for ENGINEs. ENGINEs can now
6257 declare their own commands (numbers), names (strings), descriptions,
6258 and input types for run-time discovery by calling applications. A
6259 subset of these commands are implicitly classed as "executable"
6260 depending on their input type, and only these can be invoked through
6261 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
6262 can be based on user input, config files, etc). The distinction is
6263 that "executable" commands cannot return anything other than a boolean
6264 result and can only support numeric or string input, whereas some
6265 discoverable commands may only be for direct use through
6266 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
6267 pointers, or other custom uses. The "executable" commands are to
6268 support parameterisations of ENGINE behaviour that can be
6269 unambiguously defined by ENGINEs and used consistently across any
6270 OpenSSL-based application. Commands have been added to all the
6271 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
6272 control over shared-library paths without source code alterations.
6275 *) Changed all ENGINE implementations to dynamically allocate their
6276 ENGINEs rather than declaring them statically. Apart from this being
6277 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
6278 this also allows the implementations to compile without using the
6279 internal engine_int.h header.
6282 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
6283 'const' value. Any code that should be able to modify a RAND_METHOD
6284 should already have non-const pointers to it (ie. they should only
6285 modify their own ones).
6288 *) Made a variety of little tweaks to the ENGINE code.
6289 - "atalla" and "ubsec" string definitions were moved from header files
6290 to C code. "nuron" string definitions were placed in variables
6291 rather than hard-coded - allowing parameterisation of these values
6292 later on via ctrl() commands.
6293 - Removed unused "#if 0"'d code.
6294 - Fixed engine list iteration code so it uses ENGINE_free() to release
6295 structural references.
6296 - Constified the RAND_METHOD element of ENGINE structures.
6297 - Constified various get/set functions as appropriate and added
6298 missing functions (including a catch-all ENGINE_cpy that duplicates
6299 all ENGINE values onto a new ENGINE except reference counts/state).
6300 - Removed NULL parameter checks in get/set functions. Setting a method
6301 or function to NULL is a way of cancelling out a previously set
6302 value. Passing a NULL ENGINE parameter is just plain stupid anyway
6303 and doesn't justify the extra error symbols and code.
6304 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
6305 flags from engine_int.h to engine.h.
6306 - Changed prototypes for ENGINE handler functions (init(), finish(),
6307 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
6310 *) Implement binary inversion algorithm for BN_mod_inverse in addition
6311 to the algorithm using long division. The binary algorithm can be
6312 used only if the modulus is odd. On 32-bit systems, it is faster
6313 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
6314 roughly 5-15% for 256-bit moduli), so we use it only for moduli
6315 up to 450 bits. In 64-bit environments, the binary algorithm
6316 appears to be advantageous for much longer moduli; here we use it
6317 for moduli up to 2048 bits.
6320 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
6321 could not support the combine flag in choice fields.
6324 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
6325 extensions from a certificate request to the certificate.
6328 *) Allow multiple 'certopt' and 'nameopt' options to be separated
6329 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
6330 file: this allows the display of the certificate about to be
6331 signed to be customised, to allow certain fields to be included
6332 or excluded and extension details. The old system didn't display
6333 multicharacter strings properly, omitted fields not in the policy
6334 and couldn't display additional details such as extensions.
6337 *) Function EC_POINTs_mul for multiple scalar multiplication
6338 of an arbitrary number of elliptic curve points
6339 \sum scalars[i]*points[i],
6340 optionally including the generator defined for the EC_GROUP:
6341 scalar*generator + \sum scalars[i]*points[i].
6343 EC_POINT_mul is a simple wrapper function for the typical case
6344 that the point list has just one item (besides the optional
6348 *) First EC_METHODs for curves over GF(p):
6350 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
6351 operations and provides various method functions that can also
6352 operate with faster implementations of modular arithmetic.
6354 EC_GFp_mont_method() reuses most functions that are part of
6355 EC_GFp_simple_method, but uses Montgomery arithmetic.
6357 [Bodo Moeller; point addition and point doubling
6358 implementation directly derived from source code provided by
6359 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
6361 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
6362 crypto/ec/ec_lib.c):
6364 Curves are EC_GROUP objects (with an optional group generator)
6365 based on EC_METHODs that are built into the library.
6367 Points are EC_POINT objects based on EC_GROUP objects.
6369 Most of the framework would be able to handle curves over arbitrary
6370 finite fields, but as there are no obvious types for fields other
6371 than GF(p), some functions are limited to that for now.
6374 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
6375 that the file contains a complete HTTP response.
6378 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
6379 change the def and num file printf format specifier from "%-40sXXX"
6380 to "%-39s XXX". The latter will always guarantee a space after the
6381 field while the former will cause them to run together if the field
6382 is 40 of more characters long.
6385 *) Constify the cipher and digest 'method' functions and structures
6386 and modify related functions to take constant EVP_MD and EVP_CIPHER
6390 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
6391 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
6394 *) Modify EVP_Digest*() routines so they now return values. Although the
6395 internal software routines can never fail additional hardware versions
6399 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
6401 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
6402 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
6405 ERR_R_NESTED_ASN1_ERROR
6407 ERR_R_MISSING_ASN1_EOS
6408 were 4 .. 9, conflicting with
6409 ERR_LIB_RSA (= ERR_R_RSA_LIB)
6411 ERR_LIB_PEM (= ERR_R_PEM_LIB).
6412 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
6414 Add new error code 'ERR_R_INTERNAL_ERROR'.
6417 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
6421 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
6422 sets the subject name for a new request or supersedes the
6423 subject name in a given request. Formats that can be parsed are
6424 'CN=Some Name, OU=myOU, C=IT'
6426 'CN=Some Name/OU=myOU/C=IT'.
6428 Add options '-batch' and '-verbose' to 'openssl req'.
6429 [Massimiliano Pala <madwolf@hackmasters.net>]
6431 *) Introduce the possibility to access global variables through
6432 functions on platform were that's the best way to handle exporting
6433 global variables in shared libraries. To enable this functionality,
6434 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
6435 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
6436 is normally done by Configure or something similar).
6438 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
6439 in the source file (foo.c) like this:
6441 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
6442 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
6444 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
6445 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
6447 OPENSSL_DECLARE_GLOBAL(int,foo);
6448 #define foo OPENSSL_GLOBAL_REF(foo)
6449 OPENSSL_DECLARE_GLOBAL(double,bar);
6450 #define bar OPENSSL_GLOBAL_REF(bar)
6452 The #defines are very important, and therefore so is including the
6453 header file everywhere where the defined globals are used.
6455 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
6456 of ASN.1 items, but that structure is a bit different.
6458 The largest change is in util/mkdef.pl which has been enhanced with
6459 better and easier to understand logic to choose which symbols should
6460 go into the Windows .def files as well as a number of fixes and code
6461 cleanup (among others, algorithm keywords are now sorted
6462 lexicographically to avoid constant rewrites).
6465 *) In BN_div() keep a copy of the sign of 'num' before writing the
6466 result to 'rm' because if rm==num the value will be overwritten
6467 and produce the wrong result if 'num' is negative: this caused
6468 problems with BN_mod() and BN_nnmod().
6471 *) Function OCSP_request_verify(). This checks the signature on an
6472 OCSP request and verifies the signer certificate. The signer
6473 certificate is just checked for a generic purpose and OCSP request
6477 *) Add OCSP_check_validity() function to check the validity of OCSP
6478 responses. OCSP responses are prepared in real time and may only
6479 be a few seconds old. Simply checking that the current time lies
6480 between thisUpdate and nextUpdate max reject otherwise valid responses
6481 caused by either OCSP responder or client clock inaccuracy. Instead
6482 we allow thisUpdate and nextUpdate to fall within a certain period of
6483 the current time. The age of the response can also optionally be
6484 checked. Two new options -validity_period and -status_age added to
6488 *) If signature or public key algorithm is unrecognized print out its
6489 OID rather that just UNKNOWN.
6492 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
6493 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
6494 ID to be generated from the issuer certificate alone which can then be
6495 passed to OCSP_id_issuer_cmp().
6498 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
6499 ASN1 modules to export functions returning ASN1_ITEM pointers
6500 instead of the ASN1_ITEM structures themselves. This adds several
6501 new macros which allow the underlying ASN1 function/structure to
6502 be accessed transparently. As a result code should not use ASN1_ITEM
6503 references directly (such as &X509_it) but instead use the relevant
6504 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
6505 use of the new ASN1 code on platforms where exporting structures
6506 is problematical (for example in shared libraries) but exporting
6507 functions returning pointers to structures is not.
6510 *) Add support for overriding the generation of SSL/TLS session IDs.
6511 These callbacks can be registered either in an SSL_CTX or per SSL.
6512 The purpose of this is to allow applications to control, if they wish,
6513 the arbitrary values chosen for use as session IDs, particularly as it
6514 can be useful for session caching in multiple-server environments. A
6515 command-line switch for testing this (and any client code that wishes
6516 to use such a feature) has been added to "s_server".
6517 [Geoff Thorpe, Lutz Jaenicke]
6519 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
6520 of the form '#if defined(...) || defined(...) || ...' and
6521 '#if !defined(...) && !defined(...) && ...'. This also avoids
6522 the growing number of special cases it was previously handling.
6525 *) Make all configuration macros available for application by making
6526 sure they are available in opensslconf.h, by giving them names starting
6527 with "OPENSSL_" to avoid conflicts with other packages and by making
6528 sure e_os2.h will cover all platform-specific cases together with
6530 Additionally, it is now possible to define configuration/platform-
6531 specific names (called "system identities"). In the C code, these
6532 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
6533 macro with the name beginning with "OPENSSL_SYS_", which is determined
6534 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
6538 *) New option -set_serial to 'req' and 'x509' this allows the serial
6539 number to use to be specified on the command line. Previously self
6540 signed certificates were hard coded with serial number 0 and the
6541 CA options of 'x509' had to use a serial number in a file which was
6545 *) New options to 'ca' utility to support V2 CRL entry extensions.
6546 Currently CRL reason, invalidity date and hold instruction are
6547 supported. Add new CRL extensions to V3 code and some new objects.
6550 *) New function EVP_CIPHER_CTX_set_padding() this is used to
6551 disable standard block padding (aka PKCS#5 padding) in the EVP
6552 API, which was previously mandatory. This means that the data is
6553 not padded in any way and so the total length much be a multiple
6554 of the block size, otherwise an error occurs.
6557 *) Initial (incomplete) OCSP SSL support.
6560 *) New function OCSP_parse_url(). This splits up a URL into its host,
6561 port and path components: primarily to parse OCSP URLs. New -url
6562 option to ocsp utility.
6565 *) New nonce behavior. The return value of OCSP_check_nonce() now
6566 reflects the various checks performed. Applications can decide
6567 whether to tolerate certain situations such as an absent nonce
6568 in a response when one was present in a request: the ocsp application
6569 just prints out a warning. New function OCSP_add1_basic_nonce()
6570 this is to allow responders to include a nonce in a response even if
6571 the request is nonce-less.
6574 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
6575 skipped when using openssl x509 multiple times on a single input file,
6576 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
6579 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
6580 set string type: to handle setting ASN1_TIME structures. Fix ca
6581 utility to correctly initialize revocation date of CRLs.
6584 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
6585 the clients preferred ciphersuites and rather use its own preferences.
6586 Should help to work around M$ SGC (Server Gated Cryptography) bug in
6587 Internet Explorer by ensuring unchanged hash method during stepup.
6588 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
6591 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
6592 to aes and add a new 'exist' option to print out symbols that don't
6596 *) Additional options to ocsp utility to allow flags to be set and
6597 additional certificates supplied.
6600 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
6601 OCSP client a number of certificate to only verify the response
6605 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
6606 handle the new API. Currently only ECB, CBC modes supported. Add new
6609 Add TLS AES ciphersuites as described in RFC3268, "Advanced
6610 Encryption Standard (AES) Ciphersuites for Transport Layer
6611 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
6612 not enabled by default and were not part of the "ALL" ciphersuite
6613 alias because they were not yet official; they could be
6614 explicitly requested by specifying the "AESdraft" ciphersuite
6615 group alias. In the final release of OpenSSL 0.9.7, the group
6616 alias is called "AES" and is part of "ALL".)
6617 [Ben Laurie, Steve Henson, Bodo Moeller]
6619 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
6620 request to response.
6623 *) Functions for OCSP responders. OCSP_request_onereq_count(),
6624 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
6625 extract information from a certificate request. OCSP_response_create()
6626 creates a response and optionally adds a basic response structure.
6627 OCSP_basic_add1_status() adds a complete single response to a basic
6628 response and returns the OCSP_SINGLERESP structure just added (to allow
6629 extensions to be included for example). OCSP_basic_add1_cert() adds a
6630 certificate to a basic response and OCSP_basic_sign() signs a basic
6631 response with various flags. New helper functions ASN1_TIME_check()
6632 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
6633 (converts ASN1_TIME to GeneralizedTime).
6636 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
6637 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
6638 structure from a certificate. X509_pubkey_digest() digests the public_key
6639 contents: this is used in various key identifiers.
6642 *) Make sk_sort() tolerate a NULL argument.
6643 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
6645 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
6646 passed by the function are trusted implicitly. If any of them signed the
6647 response then it is assumed to be valid and is not verified.
6650 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
6651 to data. This was previously part of the PKCS7 ASN1 code. This
6652 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
6653 [Steve Henson, reported by Kenneth R. Robinette
6654 <support@securenetterm.com>]
6656 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
6657 routines: without these tracing memory leaks is very painful.
6658 Fix leaks in PKCS12 and PKCS7 routines.
6661 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
6662 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
6663 effectively meant GeneralizedTime would never be used. Now it
6664 is initialised to -1 but X509_time_adj() now has to check the value
6665 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
6666 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
6667 [Steve Henson, reported by Kenneth R. Robinette
6668 <support@securenetterm.com>]
6670 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
6671 result in a zero length in the ASN1_INTEGER structure which was
6672 not consistent with the structure when d2i_ASN1_INTEGER() was used
6673 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
6674 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
6675 where it did not print out a minus for negative ASN1_INTEGER.
6678 *) Add summary printout to ocsp utility. The various functions which
6679 convert status values to strings have been renamed to:
6680 OCSP_response_status_str(), OCSP_cert_status_str() and
6681 OCSP_crl_reason_str() and are no longer static. New options
6682 to verify nonce values and to disable verification. OCSP response
6683 printout format cleaned up.
6686 *) Add additional OCSP certificate checks. These are those specified
6687 in RFC2560. This consists of two separate checks: the CA of the
6688 certificate being checked must either be the OCSP signer certificate
6689 or the issuer of the OCSP signer certificate. In the latter case the
6690 OCSP signer certificate must contain the OCSP signing extended key
6691 usage. This check is performed by attempting to match the OCSP
6692 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
6693 in the OCSP_CERTID structures of the response.
6696 *) Initial OCSP certificate verification added to OCSP_basic_verify()
6697 and related routines. This uses the standard OpenSSL certificate
6698 verify routines to perform initial checks (just CA validity) and
6699 to obtain the certificate chain. Then additional checks will be
6700 performed on the chain. Currently the root CA is checked to see
6701 if it is explicitly trusted for OCSP signing. This is used to set
6702 a root CA as a global signing root: that is any certificate that
6703 chains to that CA is an acceptable OCSP signing certificate.
6706 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
6707 extensions from a separate configuration file.
6708 As when reading extensions from the main configuration file,
6709 the '-extensions ...' option may be used for specifying the
6711 [Massimiliano Pala <madwolf@comune.modena.it>]
6713 *) New OCSP utility. Allows OCSP requests to be generated or
6714 read. The request can be sent to a responder and the output
6715 parsed, outputed or printed in text form. Not complete yet:
6716 still needs to check the OCSP response validity.
6719 *) New subcommands for 'openssl ca':
6720 'openssl ca -status <serial>' prints the status of the cert with
6721 the given serial number (according to the index file).
6722 'openssl ca -updatedb' updates the expiry status of certificates
6724 [Massimiliano Pala <madwolf@comune.modena.it>]
6726 *) New '-newreq-nodes' command option to CA.pl. This is like
6727 '-newreq', but calls 'openssl req' with the '-nodes' option
6728 so that the resulting key is not encrypted.
6729 [Damien Miller <djm@mindrot.org>]
6731 *) New configuration for the GNU Hurd.
6732 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
6734 *) Initial code to implement OCSP basic response verify. This
6735 is currently incomplete. Currently just finds the signer's
6736 certificate and verifies the signature on the response.
6739 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
6740 value of OPENSSLDIR. This is available via the new '-d' option
6741 to 'openssl version', and is also included in 'openssl version -a'.
6744 *) Allowing defining memory allocation callbacks that will be given
6745 file name and line number information in additional arguments
6746 (a const char* and an int). The basic functionality remains, as
6747 well as the original possibility to just replace malloc(),
6748 realloc() and free() by functions that do not know about these
6749 additional arguments. To register and find out the current
6750 settings for extended allocation functions, the following
6751 functions are provided:
6753 CRYPTO_set_mem_ex_functions
6754 CRYPTO_set_locked_mem_ex_functions
6755 CRYPTO_get_mem_ex_functions
6756 CRYPTO_get_locked_mem_ex_functions
6758 These work the same way as CRYPTO_set_mem_functions and friends.
6759 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
6760 extended allocation function is enabled.
6761 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
6762 a conventional allocation function is enabled.
6763 [Richard Levitte, Bodo Moeller]
6765 *) Finish off removing the remaining LHASH function pointer casts.
6766 There should no longer be any prototype-casting required when using
6767 the LHASH abstraction, and any casts that remain are "bugs". See
6768 the callback types and macros at the head of lhash.h for details
6769 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
6772 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
6773 If /dev/[u]random devices are not available or do not return enough
6774 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
6776 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
6777 /etc/entropy will be queried once each in this sequence, quering stops
6778 when enough entropy was collected without querying more sockets.
6781 *) Change the Unix RAND_poll() variant to be able to poll several
6782 random devices, as specified by DEVRANDOM, until a sufficient amount
6783 of data has been collected. We spend at most 10 ms on each file
6784 (select timeout) and read in non-blocking mode. DEVRANDOM now
6785 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
6786 (previously it was just the string "/dev/urandom"), so on typical
6787 platforms the 10 ms delay will never occur.
6788 Also separate out the Unix variant to its own file, rand_unix.c.
6789 For VMS, there's a currently-empty rand_vms.c.
6792 *) Move OCSP client related routines to ocsp_cl.c. These
6793 provide utility functions which an application needing
6794 to issue a request to an OCSP responder and analyse the
6795 response will typically need: as opposed to those which an
6796 OCSP responder itself would need which will be added later.
6798 OCSP_request_sign() signs an OCSP request with an API similar
6799 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
6800 response. OCSP_response_get1_basic() extracts basic response
6801 from response. OCSP_resp_find_status(): finds and extracts status
6802 information from an OCSP_CERTID structure (which will be created
6803 when the request structure is built). These are built from lower
6804 level functions which work on OCSP_SINGLERESP structures but
6805 wont normally be used unless the application wishes to examine
6806 extensions in the OCSP response for example.
6808 Replace nonce routines with a pair of functions.
6809 OCSP_request_add1_nonce() adds a nonce value and optionally
6810 generates a random value. OCSP_check_nonce() checks the
6811 validity of the nonce in an OCSP response.
6814 *) Change function OCSP_request_add() to OCSP_request_add0_id().
6815 This doesn't copy the supplied OCSP_CERTID and avoids the
6816 need to free up the newly created id. Change return type
6817 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
6818 This can then be used to add extensions to the request.
6819 Deleted OCSP_request_new(), since most of its functionality
6820 is now in OCSP_REQUEST_new() (and the case insensitive name
6821 clash) apart from the ability to set the request name which
6822 will be added elsewhere.
6825 *) Update OCSP API. Remove obsolete extensions argument from
6826 various functions. Extensions are now handled using the new
6827 OCSP extension code. New simple OCSP HTTP function which
6828 can be used to send requests and parse the response.
6831 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
6832 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
6833 uses the special reorder version of SET OF to sort the attributes
6834 and reorder them to match the encoded order. This resolves a long
6835 standing problem: a verify on a PKCS7 structure just after signing
6836 it used to fail because the attribute order did not match the
6837 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
6838 it uses the received order. This is necessary to tolerate some broken
6839 software that does not order SET OF. This is handled by encoding
6840 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
6841 to produce the required SET OF.
6844 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
6845 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
6846 files to get correct declarations of the ASN.1 item variables.
6849 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
6850 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
6851 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
6852 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
6853 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
6854 ASN1_ITEM and no wrapper functions.
6857 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
6858 replace the old function pointer based I/O routines. Change most of
6859 the *_d2i_bio() and *_d2i_fp() functions to use these.
6862 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
6863 lines, recognice more "algorithms" that can be deselected, and make
6864 it complain about algorithm deselection that isn't recognised.
6867 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
6868 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
6869 to use new functions. Add NO_ASN1_OLD which can be set to remove
6870 some old style ASN1 functions: this can be used to determine if old
6871 code will still work when these eventually go away.
6874 *) New extension functions for OCSP structures, these follow the
6875 same conventions as certificates and CRLs.
6878 *) New function X509V3_add1_i2d(). This automatically encodes and
6879 adds an extension. Its behaviour can be customised with various
6880 flags to append, replace or delete. Various wrappers added for
6881 certifcates and CRLs.
6884 *) Fix to avoid calling the underlying ASN1 print routine when
6885 an extension cannot be parsed. Correct a typo in the
6886 OCSP_SERVICELOC extension. Tidy up print OCSP format.
6889 *) Make mkdef.pl parse some of the ASN1 macros and add appropriate
6890 entries for variables.
6893 *) Add functionality to apps/openssl.c for detecting locking
6894 problems: As the program is single-threaded, all we have
6895 to do is register a locking callback using an array for
6896 storing which locks are currently held by the program.
6899 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
6900 SSL_get_ex_data_X509_STORE_idx(), which is used in
6901 ssl_verify_cert_chain() and thus can be called at any time
6902 during TLS/SSL handshakes so that thread-safety is essential.
6903 Unfortunately, the ex_data design is not at all suited
6904 for multi-threaded use, so it probably should be abolished.
6907 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
6908 [Broadcom, tweaked and integrated by Geoff Thorpe]
6910 *) Move common extension printing code to new function
6911 X509V3_print_extensions(). Reorganise OCSP print routines and
6912 implement some needed OCSP ASN1 functions. Add OCSP extensions.
6915 *) New function X509_signature_print() to remove duplication in some
6919 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
6920 set (this was treated exactly the same as SET OF previously). This
6921 is used to reorder the STACK representing the structure to match the
6922 encoding. This will be used to get round a problem where a PKCS7
6923 structure which was signed could not be verified because the STACK
6924 order did not reflect the encoded order.
6927 *) Reimplement the OCSP ASN1 module using the new code.
6930 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
6931 for its ASN1 operations. The old style function pointers still exist
6932 for now but they will eventually go away.
6935 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
6936 completely replaces the old ASN1 functionality with a table driven
6937 encoder and decoder which interprets an ASN1_ITEM structure describing
6938 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
6939 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
6940 has also been converted to the new form.
6943 *) Change BN_mod_exp_recp so that negative moduli are tolerated
6944 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
6945 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
6946 for negative moduli.
6949 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
6950 of not touching the result's sign bit.
6953 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
6957 *) Changed the LHASH code to use prototypes for callbacks, and created
6958 macros to declare and implement thin (optionally static) functions
6959 that provide type-safety and avoid function pointer casting for the
6960 type-specific callbacks.
6963 *) Added Kerberos Cipher Suites to be used with TLS, as written in
6965 [Veers Staats <staatsvr@asc.hpc.mil>,
6966 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
6968 *) Reformat the FAQ so the different questions and answers can be divided
6969 in sections depending on the subject.
6972 *) Have the zlib compression code load ZLIB.DLL dynamically under
6976 *) New function BN_mod_sqrt for computing square roots modulo a prime
6977 (using the probabilistic Tonelli-Shanks algorithm unless
6978 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
6979 be handled deterministically).
6980 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
6982 *) Make BN_mod_inverse faster by explicitly handling small quotients
6983 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
6984 512 bits], about 30% for larger ones [1024 or 2048 bits].)
6987 *) New function BN_kronecker.
6990 *) Fix BN_gcd so that it works on negative inputs; the result is
6991 positive unless both parameters are zero.
6992 Previously something reasonably close to an infinite loop was
6993 possible because numbers could be growing instead of shrinking
6994 in the implementation of Euclid's algorithm.
6997 *) Fix BN_is_word() and BN_is_one() macros to take into account the
6998 sign of the number in question.
7000 Fix BN_is_word(a,w) to work correctly for w == 0.
7002 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
7003 because its test if the absolute value of 'a' equals 'w'.
7004 Note that BN_abs_is_word does *not* handle w == 0 reliably;
7005 it exists mostly for use in the implementations of BN_is_zero(),
7006 BN_is_one(), and BN_is_word().
7009 *) New function BN_swap.
7012 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
7013 the exponentiation functions are more likely to produce reasonable
7014 results on negative inputs.
7017 *) Change BN_mod_mul so that the result is always non-negative.
7018 Previously, it could be negative if one of the factors was negative;
7019 I don't think anyone really wanted that behaviour.
7022 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
7023 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
7024 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
7025 and add new functions:
7034 BN_mod_lshift1_quick
7038 These functions always generate non-negative results.
7040 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
7041 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
7043 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
7044 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
7045 be reduced modulo m.
7046 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
7049 The following entry accidentally appeared in the CHANGES file
7050 distributed with OpenSSL 0.9.7. The modifications described in
7051 it do *not* apply to OpenSSL 0.9.7.
7053 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
7054 was actually never needed) and in BN_mul(). The removal in BN_mul()
7055 required a small change in bn_mul_part_recursive() and the addition
7056 of the functions bn_cmp_part_words(), bn_sub_part_words() and
7057 bn_add_part_words(), which do the same thing as bn_cmp_words(),
7058 bn_sub_words() and bn_add_words() except they take arrays with
7063 *) In 'openssl passwd', verify passwords read from the terminal
7064 unless the '-salt' option is used (which usually means that
7065 verification would just waste user's time since the resulting
7066 hash is going to be compared with some given password hash)
7067 or the new '-noverify' option is used.
7069 This is an incompatible change, but it does not affect
7070 non-interactive use of 'openssl passwd' (passwords on the command
7071 line, '-stdin' option, '-in ...' option) and thus should not
7075 *) Remove all references to RSAref, since there's no more need for it.
7078 *) Make DSO load along a path given through an environment variable
7079 (SHLIB_PATH) with shl_load().
7082 *) Constify the ENGINE code as a result of BIGNUM constification.
7083 Also constify the RSA code and most things related to it. In a
7084 few places, most notable in the depth of the ASN.1 code, ugly
7085 casts back to non-const were required (to be solved at a later
7089 *) Make it so the openssl application has all engines loaded by default.
7092 *) Constify the BIGNUM routines a little more.
7095 *) Add the following functions:
7097 ENGINE_load_cswift()
7099 ENGINE_load_atalla()
7101 ENGINE_load_builtin_engines()
7103 That way, an application can itself choose if external engines that
7104 are built-in in OpenSSL shall ever be used or not. The benefit is
7105 that applications won't have to be linked with libdl or other dso
7106 libraries unless it's really needed.
7108 Changed 'openssl engine' to load all engines on demand.
7109 Changed the engine header files to avoid the duplication of some
7110 declarations (they differed!).
7113 *) 'openssl engine' can now list capabilities.
7116 *) Better error reporting in 'openssl engine'.
7119 *) Never call load_dh_param(NULL) in s_server.
7122 *) Add engine application. It can currently list engines by name and
7123 identity, and test if they are actually available.
7126 *) Improve RPM specification file by forcing symbolic linking and making
7127 sure the installed documentation is also owned by root.root.
7128 [Damien Miller <djm@mindrot.org>]
7130 *) Give the OpenSSL applications more possibilities to make use of
7131 keys (public as well as private) handled by engines.
7134 *) Add OCSP code that comes from CertCo.
7137 *) Add VMS support for the Rijndael code.
7140 *) Added untested support for Nuron crypto accelerator.
7143 *) Add support for external cryptographic devices. This code was
7144 previously distributed separately as the "engine" branch.
7145 [Geoff Thorpe, Richard Levitte]
7147 *) Rework the filename-translation in the DSO code. It is now possible to
7148 have far greater control over how a "name" is turned into a filename
7149 depending on the operating environment and any oddities about the
7150 different shared library filenames on each system.
7153 *) Support threads on FreeBSD-elf in Configure.
7156 *) Fix for SHA1 assembly problem with MASM: it produces
7157 warnings about corrupt line number information when assembling
7158 with debugging information. This is caused by the overlapping
7160 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
7163 NCONF_get_number() has no error checking at all. As a replacement,
7164 NCONF_get_number_e() is defined (_e for "error checking") and is
7165 promoted strongly. The old NCONF_get_number is kept around for
7166 binary backward compatibility.
7167 Make it possible for methods to load from something other than a BIO,
7168 by providing a function pointer that is given a name instead of a BIO.
7169 For example, this could be used to load configuration data from an
7173 *) Fix for non blocking accept BIOs. Added new I/O special reason
7174 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
7175 with non blocking I/O was not possible because no retry code was
7176 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
7180 *) Added the beginnings of Rijndael support.
7183 *) Fix for bug in DirectoryString mask setting. Add support for
7184 X509_NAME_print_ex() in 'req' and X509_print_ex() function
7185 to allow certificate printing to more controllable, additional
7186 'certopt' option to 'x509' to allow new printing options to be
7190 *) Clean old EAY MD5 hack from e_os.h.
7193 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
7195 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
7196 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
7197 [Joe Orton, Steve Henson]
7199 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
7201 *) Fix additional bug revealed by the NISCC test suite:
7203 Stop bug triggering large recursion when presented with
7204 certain ASN.1 tags (CVE-2003-0851)
7207 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
7209 *) Fix various bugs revealed by running the NISCC test suite:
7211 Stop out of bounds reads in the ASN1 code when presented with
7212 invalid tags (CVE-2003-0543 and CVE-2003-0544).
7214 If verify callback ignores invalid public key errors don't try to check
7215 certificate signature with the NULL public key.
7219 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
7220 if the server requested one: as stated in TLS 1.0 and SSL 3.0
7224 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
7225 extra data after the compression methods not only for TLS 1.0
7226 but also for SSL 3.0 (as required by the specification).
7227 [Bodo Moeller; problem pointed out by Matthias Loepfe]
7229 *) Change X509_certificate_type() to mark the key as exported/exportable
7230 when it's 512 *bits* long, not 512 bytes.
7233 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
7235 *) Countermeasure against the Klima-Pokorny-Rosa extension of
7236 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
7237 a protocol version number mismatch like a decryption error
7238 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
7241 *) Turn on RSA blinding by default in the default implementation
7242 to avoid a timing attack. Applications that don't want it can call
7243 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
7244 They would be ill-advised to do so in most cases.
7245 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
7247 *) Change RSA blinding code so that it works when the PRNG is not
7248 seeded (in this case, the secret RSA exponent is abused as
7249 an unpredictable seed -- if it is not unpredictable, there
7250 is no point in blinding anyway). Make RSA blinding thread-safe
7251 by remembering the creator's thread ID in rsa->blinding and
7252 having all other threads use local one-time blinding factors
7253 (this requires more computation than sharing rsa->blinding, but
7254 avoids excessive locking; and if an RSA object is not shared
7255 between threads, blinding will still be very fast).
7258 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
7260 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
7261 via timing by performing a MAC computation even if incorrrect
7262 block cipher padding has been found. This is a countermeasure
7263 against active attacks where the attacker has to distinguish
7264 between bad padding and a MAC verification error. (CVE-2003-0078)
7266 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
7267 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
7268 Martin Vuagnoux (EPFL, Ilion)]
7270 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
7272 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
7273 memory from it's contents. This is done with a counter that will
7274 place alternating values in each byte. This can be used to solve
7275 two issues: 1) the removal of calls to memset() by highly optimizing
7276 compilers, and 2) cleansing with other values than 0, since those can
7277 be read through on certain media, for example a swap space on disk.
7280 *) Bugfix: client side session caching did not work with external caching,
7281 because the session->cipher setting was not restored when reloading
7282 from the external cache. This problem was masked, when
7283 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
7284 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
7287 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
7288 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
7289 [Zeev Lieber <zeev-l@yahoo.com>]
7291 *) Undo an undocumented change introduced in 0.9.6e which caused
7292 repeated calls to OpenSSL_add_all_ciphers() and
7293 OpenSSL_add_all_digests() to be ignored, even after calling
7297 *) Change the default configuration reader to deal with last line not
7298 being properly terminated.
7301 *) Change X509_NAME_cmp() so it applies the special rules on handling
7302 DN values that are of type PrintableString, as well as RDNs of type
7303 emailAddress where the value has the type ia5String.
7304 [stefank@valicert.com via Richard Levitte]
7306 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
7307 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
7308 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
7309 the bitwise-OR of the two for use by the majority of applications
7310 wanting this behaviour, and update the docs. The documented
7311 behaviour and actual behaviour were inconsistent and had been
7312 changing anyway, so this is more a bug-fix than a behavioural
7314 [Geoff Thorpe, diagnosed by Nadav Har'El]
7316 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
7317 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
7320 *) Fix initialization code race conditions in
7321 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
7322 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
7323 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
7324 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
7325 ssl2_get_cipher_by_char(),
7326 ssl3_get_cipher_by_char().
7327 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
7329 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
7330 the cached sessions are flushed, as the remove_cb() might use ex_data
7331 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
7332 (see [openssl.org #212]).
7333 [Geoff Thorpe, Lutz Jaenicke]
7335 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
7336 length, instead of the encoding length to d2i_ASN1_OBJECT.
7339 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
7341 *) [In 0.9.6g-engine release:]
7342 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
7343 [Lynn Gazis <lgazis@rainbow.com>]
7345 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
7347 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
7348 and get fix the header length calculation.
7349 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
7350 Alon Kantor <alonk@checkpoint.com> (and others),
7353 *) Use proper error handling instead of 'assertions' in buffer
7354 overflow checks added in 0.9.6e. This prevents DoS (the
7355 assertions could call abort()).
7356 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
7358 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
7360 *) Add various sanity checks to asn1_get_length() to reject
7361 the ASN1 length bytes if they exceed sizeof(long), will appear
7362 negative or the content length exceeds the length of the
7364 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
7366 *) Fix cipher selection routines: ciphers without encryption had no flags
7367 for the cipher strength set and where therefore not handled correctly
7368 by the selection routines (PR #130).
7371 *) Fix EVP_dsa_sha macro.
7375 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
7376 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
7377 that was added in OpenSSL 0.9.6d.
7379 As the countermeasure turned out to be incompatible with some
7380 broken SSL implementations, the new option is part of SSL_OP_ALL.
7381 SSL_OP_ALL is usually employed when compatibility with weird SSL
7382 implementations is desired (e.g. '-bugs' option to 's_client' and
7383 's_server'), so the new option is automatically set in many
7387 *) Changes in security patch:
7389 Changes marked "(CHATS)" were sponsored by the Defense Advanced
7390 Research Projects Agency (DARPA) and Air Force Research Laboratory,
7391 Air Force Materiel Command, USAF, under agreement number
7394 *) Add various sanity checks to asn1_get_length() to reject
7395 the ASN1 length bytes if they exceed sizeof(long), will appear
7396 negative or the content length exceeds the length of the
7397 supplied buffer. (CVE-2002-0659)
7398 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
7400 *) Assertions for various potential buffer overflows, not known to
7402 [Ben Laurie (CHATS)]
7404 *) Various temporary buffers to hold ASCII versions of integers were
7405 too small for 64 bit platforms. (CVE-2002-0655)
7406 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
7408 *) Remote buffer overflow in SSL3 protocol - an attacker could
7409 supply an oversized session ID to a client. (CVE-2002-0656)
7410 [Ben Laurie (CHATS)]
7412 *) Remote buffer overflow in SSL2 protocol - an attacker could
7413 supply an oversized client master key. (CVE-2002-0656)
7414 [Ben Laurie (CHATS)]
7416 Changes between 0.9.6c and 0.9.6d [9 May 2002]
7418 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
7419 encoded as NULL) with id-dsa-with-sha1.
7420 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
7422 *) Check various X509_...() return values in apps/req.c.
7423 [Nils Larsch <nla@trustcenter.de>]
7425 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
7426 an end-of-file condition would erronously be flagged, when the CRLF
7427 was just at the end of a processed block. The bug was discovered when
7428 processing data through a buffering memory BIO handing the data to a
7429 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
7430 <ptsekov@syntrex.com> and Nedelcho Stanev.
7433 *) Implement a countermeasure against a vulnerability recently found
7434 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
7435 before application data chunks to avoid the use of known IVs
7436 with data potentially chosen by the attacker.
7439 *) Fix length checks in ssl3_get_client_hello().
7442 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
7443 to prevent ssl3_read_internal() from incorrectly assuming that
7444 ssl3_read_bytes() found application data while handshake
7445 processing was enabled when in fact s->s3->in_read_app_data was
7446 merely automatically cleared during the initial handshake.
7447 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
7449 *) Fix object definitions for Private and Enterprise: they were not
7450 recognized in their shortname (=lowercase) representation. Extend
7451 obj_dat.pl to issue an error when using undefined keywords instead
7452 of silently ignoring the problem (Svenning Sorensen
7453 <sss@sss.dnsalias.net>).
7456 *) Fix DH_generate_parameters() so that it works for 'non-standard'
7457 generators, i.e. generators other than 2 and 5. (Previously, the
7458 code did not properly initialise the 'add' and 'rem' values to
7459 BN_generate_prime().)
7461 In the new general case, we do not insist that 'generator' is
7462 actually a primitive root: This requirement is rather pointless;
7463 a generator of the order-q subgroup is just as good, if not
7467 *) Map new X509 verification errors to alerts. Discovered and submitted by
7468 Tom Wu <tom@arcot.com>.
7471 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
7472 returning non-zero before the data has been completely received
7473 when using non-blocking I/O.
7474 [Bodo Moeller; problem pointed out by John Hughes]
7476 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
7477 [Ben Laurie, Lutz Jaenicke]
7479 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
7480 Yoram Zahavi <YoramZ@gilian.com>).
7483 *) Add information about CygWin 1.3 and on, and preserve proper
7484 configuration for the versions before that.
7485 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
7487 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
7488 check whether we deal with a copy of a session and do not delete from
7489 the cache in this case. Problem reported by "Izhar Shoshani Levi"
7490 <izhar@checkpoint.com>.
7493 *) Do not store session data into the internal session cache, if it
7494 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
7495 flag is set). Proposed by Aslam <aslam@funk.com>.
7498 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
7502 *) [In 0.9.6d-engine release:]
7503 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
7504 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
7506 *) Add the configuration target linux-s390x.
7507 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
7509 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
7510 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
7511 variable as an indication that a ClientHello message has been
7512 received. As the flag value will be lost between multiple
7513 invocations of ssl3_accept when using non-blocking I/O, the
7514 function may not be aware that a handshake has actually taken
7515 place, thus preventing a new session from being added to the
7518 To avoid this problem, we now set s->new_session to 2 instead of
7519 using a local variable.
7520 [Lutz Jaenicke, Bodo Moeller]
7522 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
7523 if the SSL_R_LENGTH_MISMATCH error is detected.
7524 [Geoff Thorpe, Bodo Moeller]
7526 *) New 'shared_ldflag' column in Configure platform table.
7529 *) Fix EVP_CIPHER_mode macro.
7530 ["Dan S. Camper" <dan@bti.net>]
7532 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
7533 type, we must throw them away by setting rr->length to 0.
7534 [D P Chang <dpc@qualys.com>]
7536 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
7538 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
7539 <Dominikus.Scherkl@biodata.com>. (The previous implementation
7540 worked incorrectly for those cases where range = 10..._2 and
7541 3*range is two bits longer than range.)
7544 *) Only add signing time to PKCS7 structures if it is not already
7548 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
7549 OBJ_ld_ce should be OBJ_id_ce.
7550 Also some ip-pda OIDs in crypto/objects/objects.txt were
7551 incorrect (cf. RFC 3039).
7552 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
7554 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
7555 returns early because it has nothing to do.
7556 [Andy Schneider <andy.schneider@bjss.co.uk>]
7558 *) [In 0.9.6c-engine release:]
7559 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
7560 [Andy Schneider <andy.schneider@bjss.co.uk>]
7562 *) [In 0.9.6c-engine release:]
7563 Add support for Cryptographic Appliance's keyserver technology.
7564 (Use engine 'keyclient')
7565 [Cryptographic Appliances and Geoff Thorpe]
7567 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
7568 is called via tools/c89.sh because arguments have to be
7569 rearranged (all '-L' options must appear before the first object
7571 [Richard Shapiro <rshapiro@abinitio.com>]
7573 *) [In 0.9.6c-engine release:]
7574 Add support for Broadcom crypto accelerator cards, backported
7576 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
7578 *) [In 0.9.6c-engine release:]
7579 Add support for SureWare crypto accelerator cards from
7580 Baltimore Technologies. (Use engine 'sureware')
7581 [Baltimore Technologies and Mark Cox]
7583 *) [In 0.9.6c-engine release:]
7584 Add support for crypto accelerator cards from Accelerated
7585 Encryption Processing, www.aep.ie. (Use engine 'aep')
7586 [AEP Inc. and Mark Cox]
7588 *) Add a configuration entry for gcc on UnixWare.
7589 [Gary Benson <gbenson@redhat.com>]
7591 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
7592 messages are stored in a single piece (fixed-length part and
7593 variable-length part combined) and fix various bugs found on the way.
7596 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
7597 instead. BIO_gethostbyname() does not know what timeouts are
7598 appropriate, so entries would stay in cache even when they have
7600 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
7602 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
7603 faced with a pathologically small ClientHello fragment that does
7604 not contain client_version: Instead of aborting with an error,
7605 simply choose the highest available protocol version (i.e.,
7606 TLS 1.0 unless it is disabled). In practice, ClientHello
7607 messages are never sent like this, but this change gives us
7608 strictly correct behaviour at least for TLS.
7611 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
7612 never resets s->method to s->ctx->method when called from within
7613 one of the SSL handshake functions.
7614 [Bodo Moeller; problem pointed out by Niko Baric]
7616 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
7617 (sent using the client's version number) if client_version is
7618 smaller than the protocol version in use. Also change
7619 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
7620 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
7621 the client will at least see that alert.
7624 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
7628 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
7629 client receives HelloRequest while in a handshake.
7630 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
7632 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
7633 should end in 'break', not 'goto end' which circumvents various
7634 cleanups done in state SSL_ST_OK. But session related stuff
7635 must be disabled for SSL_ST_OK in the case that we just sent a
7638 Also avoid some overhead by not calling ssl_init_wbio_buffer()
7639 before just sending a HelloRequest.
7640 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
7642 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
7643 reveal whether illegal block cipher padding was found or a MAC
7644 verification error occured. (Neither SSLerr() codes nor alerts
7645 are directly visible to potential attackers, but the information
7646 may leak via logfiles.)
7648 Similar changes are not required for the SSL 2.0 implementation
7649 because the number of padding bytes is sent in clear for SSL 2.0,
7650 and the extra bytes are just ignored. However ssl/s2_pkt.c
7651 failed to verify that the purported number of padding bytes is in
7655 *) Add OpenUNIX-8 support including shared libraries
7656 (Boyd Lynn Gerber <gerberb@zenez.com>).
7659 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
7660 'wristwatch attack' using huge encoding parameters (cf.
7661 James H. Manger's CRYPTO 2001 paper). Note that the
7662 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
7663 encoding parameters and hence was not vulnerable.
7666 *) BN_sqr() bug fix.
7667 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
7669 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
7670 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
7671 followed by modular reduction.
7672 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
7674 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
7675 equivalent based on BN_pseudo_rand() instead of BN_rand().
7678 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
7679 This function was broken, as the check for a new client hello message
7680 to handle SGC did not allow these large messages.
7681 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
7684 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
7687 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
7688 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
7691 *) Rework the configuration and shared library support for Tru64 Unix.
7692 The configuration part makes use of modern compiler features and
7693 still retains old compiler behavior for those that run older versions
7694 of the OS. The shared library support part includes a variant that
7695 uses the RPATH feature, and is available through the special
7696 configuration target "alpha-cc-rpath", which will never be selected
7698 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
7700 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
7701 with the same message size as in ssl3_get_certificate_request().
7702 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
7703 messages might inadvertently be reject as too long.
7704 [Petr Lampa <lampa@fee.vutbr.cz>]
7706 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
7709 *) Modified SSL library such that the verify_callback that has been set
7710 specificly for an SSL object with SSL_set_verify() is actually being
7711 used. Before the change, a verify_callback set with this function was
7712 ignored and the verify_callback() set in the SSL_CTX at the time of
7713 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
7714 to allow the necessary settings.
7717 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
7718 explicitly to NULL, as at least on Solaris 8 this seems not always to be
7719 done automatically (in contradiction to the requirements of the C
7720 standard). This made problems when used from OpenSSH.
7723 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
7724 dh->length and always used
7726 BN_rand_range(priv_key, dh->p).
7728 BN_rand_range() is not necessary for Diffie-Hellman, and this
7729 specific range makes Diffie-Hellman unnecessarily inefficient if
7730 dh->length (recommended exponent length) is much smaller than the
7731 length of dh->p. We could use BN_rand_range() if the order of
7732 the subgroup was stored in the DH structure, but we only have
7737 BN_rand(priv_key, l, ...)
7739 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
7745 RSA_eay_public_encrypt
7746 RSA_eay_private_decrypt
7747 RSA_eay_private_encrypt (signing)
7748 RSA_eay_public_decrypt (signature verification)
7750 (default implementations for RSA_public_encrypt,
7751 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
7752 always reject numbers >= n.
7755 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
7756 to synchronize access to 'locking_thread'. This is necessary on
7757 systems where access to 'locking_thread' (an 'unsigned long'
7758 variable) is not atomic.
7761 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
7762 *before* setting the 'crypto_lock_rand' flag. The previous code had
7763 a race condition if 0 is a valid thread ID.
7764 [Travis Vitek <vitek@roguewave.com>]
7766 *) Add support for shared libraries under Irix.
7767 [Albert Chin-A-Young <china@thewrittenword.com>]
7769 *) Add configuration option to build on Linux on both big-endian and
7771 [Ralf Baechle <ralf@uni-koblenz.de>]
7773 *) Add the possibility to create shared libraries on HP-UX.
7776 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
7778 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
7779 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
7780 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
7781 PRNG state recovery was possible based on the output of
7782 one PRNG request appropriately sized to gain knowledge on
7783 'md' followed by enough consecutive 1-byte PRNG requests
7784 to traverse all of 'state'.
7786 1. When updating 'md_local' (the current thread's copy of 'md')
7787 during PRNG output generation, hash all of the previous
7788 'md_local' value, not just the half used for PRNG output.
7790 2. Make the number of bytes from 'state' included into the hash
7791 independent from the number of PRNG bytes requested.
7793 The first measure alone would be sufficient to avoid
7794 Markku-Juhani's attack. (Actually it had never occurred
7795 to me that the half of 'md_local' used for chaining was the
7796 half from which PRNG output bytes were taken -- I had always
7797 assumed that the secret half would be used.) The second
7798 measure makes sure that additional data from 'state' is never
7799 mixed into 'md_local' in small portions; this heuristically
7800 further strengthens the PRNG.
7803 *) Fix crypto/bn/asm/mips3.s.
7806 *) When only the key is given to "enc", the IV is undefined. Print out
7807 an error message in this case.
7810 *) Handle special case when X509_NAME is empty in X509 printing routines.
7813 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
7814 positive and less than q.
7817 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
7818 used: it isn't thread safe and the add_lock_callback should handle
7820 [Paul Rose <Paul.Rose@bridge.com>]
7822 *) Verify that incoming data obeys the block size in
7823 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
7827 [Ulf Möller, Bodo Möller]
7829 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
7830 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
7831 when fixing the server behaviour for backwards-compatible 'client
7832 hello' messages. (Note that the attack is impractical against
7833 SSL 3.0 and TLS 1.0 anyway because length and version checking
7834 means that the probability of guessing a valid ciphertext is
7835 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
7838 Before 0.9.5, the countermeasure (hide the error by generating a
7839 random 'decryption result') did not work properly because
7840 ERR_clear_error() was missing, meaning that SSL_get_error() would
7841 detect the supposedly ignored error.
7843 Both problems are now fixed.
7846 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
7847 (previously it was 1024).
7850 *) Fix for compatibility mode trust settings: ignore trust settings
7851 unless some valid trust or reject settings are present.
7854 *) Fix for blowfish EVP: its a variable length cipher.
7857 *) Fix various bugs related to DSA S/MIME verification. Handle missing
7858 parameters in DSA public key structures and return an error in the
7859 DSA routines if parameters are absent.
7862 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
7863 in the current directory if neither $RANDFILE nor $HOME was set.
7864 RAND_file_name() in 0.9.6a returned NULL in this case. This has
7865 caused some confusion to Windows users who haven't defined $HOME.
7866 Thus RAND_file_name() is changed again: e_os.h can define a
7867 DEFAULT_HOME, which will be used if $HOME is not set.
7868 For Windows, we use "C:"; on other platforms, we still require
7869 environment variables.
7871 *) Move 'if (!initialized) RAND_poll()' into regions protected by
7872 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
7873 having multiple threads call RAND_poll() concurrently.
7876 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
7877 combination of a flag and a thread ID variable.
7878 Otherwise while one thread is in ssleay_rand_bytes (which sets the
7879 flag), *other* threads can enter ssleay_add_bytes without obeying
7880 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
7881 that they do not hold after the first thread unsets add_do_not_lock).
7884 *) Change bctest again: '-x' expressions are not available in all
7888 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
7890 *) Fix a couple of memory leaks in PKCS7_dataDecode()
7891 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
7893 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
7894 the default extension for executables, if any. Also, make the perl
7895 scripts that use symlink() to test if it really exists and use "cp"
7896 if it doesn't. All this made OpenSSL compilable and installable in
7900 *) Fix for asn1_GetSequence() for indefinite length constructed data.
7901 If SEQUENCE is length is indefinite just set c->slen to the total
7902 amount of data available.
7903 [Steve Henson, reported by shige@FreeBSD.org]
7904 [This change does not apply to 0.9.7.]
7906 *) Change bctest to avoid here-documents inside command substitution
7907 (workaround for FreeBSD /bin/sh bug).
7908 For compatibility with Ultrix, avoid shell functions (introduced
7909 in the bctest version that searches along $PATH).
7912 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
7913 with des_encrypt() defined on some operating systems, like Solaris
7917 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
7918 On the Importance of Eliminating Errors in Cryptographic
7919 Computations, J. Cryptology 14 (2001) 2, 101-119,
7920 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
7923 *) MIPS assembler BIGNUM division bug fix.
7926 *) Disabled incorrect Alpha assembler code.
7929 *) Fix PKCS#7 decode routines so they correctly update the length
7930 after reading an EOC for the EXPLICIT tag.
7932 [This change does not apply to 0.9.7.]
7934 *) Fix bug in PKCS#12 key generation routines. This was triggered
7935 if a 3DES key was generated with a 0 initial byte. Include
7936 PKCS12_BROKEN_KEYGEN compilation option to retain the old
7937 (but broken) behaviour.
7940 *) Enhance bctest to search for a working bc along $PATH and print
7942 [Tim Rice <tim@multitalents.net> via Richard Levitte]
7944 *) Fix memory leaks in err.c: free err_data string if necessary;
7945 don't write to the wrong index in ERR_set_error_data.
7948 *) Implement ssl23_peek (analogous to ssl23_read), which previously
7952 *) Replace rdtsc with _emit statements for VC++ version 5.
7953 [Jeremy Cooper <jeremy@baymoo.org>]
7955 *) Make it possible to reuse SSLv2 sessions.
7958 *) In copy_email() check for >= 0 as a return value for
7959 X509_NAME_get_index_by_NID() since 0 is a valid index.
7960 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
7962 *) Avoid coredump with unsupported or invalid public keys by checking if
7963 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
7964 PKCS7_verify() fails with non detached data.
7967 *) Don't use getenv in library functions when run as setuid/setgid.
7968 New function OPENSSL_issetugid().
7971 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
7972 due to incorrect handling of multi-threading:
7974 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
7976 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
7978 3. Count how many times MemCheck_off() has been called so that
7979 nested use can be treated correctly. This also avoids
7980 inband-signalling in the previous code (which relied on the
7981 assumption that thread ID 0 is impossible).
7984 *) Add "-rand" option also to s_client and s_server.
7987 *) Fix CPU detection on Irix 6.x.
7988 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
7989 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
7991 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
7994 [This change does not apply to 0.9.7.]
7996 *) Use the cached encoding of an X509_NAME structure rather than
7997 copying it. This is apparently the reason for the libsafe "errors"
7998 but the code is actually correct.
8001 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
8002 Bleichenbacher's DSA attack.
8003 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
8004 to be set and top=0 forces the highest bit to be set; top=-1 is new
8005 and leaves the highest bit random.
8006 [Ulf Moeller, Bodo Moeller]
8008 *) In the NCONF_...-based implementations for CONF_... queries
8009 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
8010 a temporary CONF structure with the data component set to NULL
8011 (which gives segmentation faults in lh_retrieve).
8012 Instead, use NULL for the CONF pointer in CONF_get_string and
8013 CONF_get_number (which may use environment variables) and directly
8014 return NULL from CONF_get_section.
8017 *) Fix potential buffer overrun for EBCDIC.
8020 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
8021 keyUsage if basicConstraints absent for a CA.
8024 *) Make SMIME_write_PKCS7() write mail header values with a format that
8025 is more generally accepted (no spaces before the semicolon), since
8026 some programs can't parse those values properly otherwise. Also make
8027 sure BIO's that break lines after each write do not create invalid
8031 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
8032 macros previously used would not encode an empty SEQUENCE OF
8033 and break the signature.
8035 [This change does not apply to 0.9.7.]
8037 *) Zero the premaster secret after deriving the master secret in
8041 *) Add some EVP_add_digest_alias registrations (as found in
8042 OpenSSL_add_all_digests()) to SSL_library_init()
8043 aka OpenSSL_add_ssl_algorithms(). This provides improved
8044 compatibility with peers using X.509 certificates
8045 with unconventional AlgorithmIdentifier OIDs.
8048 *) Fix for Irix with NO_ASM.
8049 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
8051 *) ./config script fixes.
8052 [Ulf Moeller, Richard Levitte]
8054 *) Fix 'openssl passwd -1'.
8057 *) Change PKCS12_key_gen_asc() so it can cope with non null
8058 terminated strings whose length is passed in the passlen
8059 parameter, for example from PEM callbacks. This was done
8060 by adding an extra length parameter to asc2uni().
8061 [Steve Henson, reported by <oddissey@samsung.co.kr>]
8063 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
8064 call failed, free the DSA structure.
8067 *) Fix to uni2asc() to cope with zero length Unicode strings.
8068 These are present in some PKCS#12 files.
8071 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
8072 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
8073 when writing a 32767 byte record.
8074 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
8076 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
8077 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
8079 (RSA objects have a reference count access to which is protected
8080 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
8081 so they are meant to be shared between threads.)
8082 [Bodo Moeller, Geoff Thorpe; original patch submitted by
8083 "Reddie, Steven" <Steven.Reddie@ca.com>]
8085 *) Fix a deadlock in CRYPTO_mem_leaks().
8088 *) Use better test patterns in bntest.
8091 *) rand_win.c fix for Borland C.
8094 *) BN_rshift bugfix for n == 0.
8097 *) Add a 'bctest' script that checks for some known 'bc' bugs
8098 so that 'make test' does not abort just because 'bc' is broken.
8101 *) Store verify_result within SSL_SESSION also for client side to
8102 avoid potential security hole. (Re-used sessions on the client side
8103 always resulted in verify_result==X509_V_OK, not using the original
8104 result of the server certificate verification.)
8107 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
8108 SSL3_RT_APPLICATION_DATA, return 0.
8109 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
8113 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
8114 releases, have been re-implemented by renaming the previous
8115 implementations of ssl2_read and ssl3_read to ssl2_read_internal
8116 and ssl3_read_internal, respectively, and adding 'peek' parameters
8117 to them. The new ssl[23]_{read,peek} functions are calls to
8118 ssl[23]_read_internal with the 'peek' flag set appropriately.
8119 A 'peek' parameter has also been added to ssl3_read_bytes, which
8120 does the actual work for ssl3_read_internal.
8123 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
8124 the method-specific "init()" handler. Also clean up ex_data after
8125 calling the method-specific "finish()" handler. Previously, this was
8126 happening the other way round.
8129 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
8130 The previous value, 12, was not always sufficient for BN_mod_exp().
8133 *) Make sure that shared libraries get the internal name engine with
8134 the full version number and not just 0. This should mark the
8135 shared libraries as not backward compatible. Of course, this should
8136 be changed again when we can guarantee backward binary compatibility.
8139 *) Fix typo in get_cert_by_subject() in by_dir.c
8140 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
8142 *) Rework the system to generate shared libraries:
8144 - Make note of the expected extension for the shared libraries and
8145 if there is a need for symbolic links from for example libcrypto.so.0
8146 to libcrypto.so.0.9.7. There is extended info in Configure for
8149 - Make as few rebuilds of the shared libraries as possible.
8151 - Still avoid linking the OpenSSL programs with the shared libraries.
8153 - When installing, install the shared libraries separately from the
8157 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
8159 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
8160 and not in SSL_clear because the latter is also used by the
8161 accept/connect functions; previously, the settings made by
8162 SSL_set_read_ahead would be lost during the handshake.
8163 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
8165 *) Correct util/mkdef.pl to be selective about disabled algorithms.
8166 Previously, it would create entries for disabled algorithms no
8170 *) Added several new manual pages for SSL_* function.
8173 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
8175 *) In ssl23_get_client_hello, generate an error message when faced
8176 with an initial SSL 3.0/TLS record that is too small to contain the
8177 first two bytes of the ClientHello message, i.e. client_version.
8178 (Note that this is a pathologic case that probably has never happened
8179 in real life.) The previous approach was to use the version number
8180 from the record header as a substitute; but our protocol choice
8181 should not depend on that one because it is not authenticated
8182 by the Finished messages.
8185 *) More robust randomness gathering functions for Windows.
8186 [Jeffrey Altman <jaltman@columbia.edu>]
8188 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
8189 not set then we don't setup the error code for issuer check errors
8190 to avoid possibly overwriting other errors which the callback does
8191 handle. If an application does set the flag then we assume it knows
8192 what it is doing and can handle the new informational codes
8196 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
8197 a general "ANY" type, as such it should be able to decode anything
8198 including tagged types. However it didn't check the class so it would
8199 wrongly interpret tagged types in the same way as their universal
8200 counterpart and unknown types were just rejected. Changed so that the
8201 tagged and unknown types are handled in the same way as a SEQUENCE:
8202 that is the encoding is stored intact. There is also a new type
8203 "V_ASN1_OTHER" which is used when the class is not universal, in this
8204 case we have no idea what the actual type is so we just lump them all
8208 *) On VMS, stdout may very well lead to a file that is written to
8209 in a record-oriented fashion. That means that every write() will
8210 write a separate record, which will be read separately by the
8211 programs trying to read from it. This can be very confusing.
8213 The solution is to put a BIO filter in the way that will buffer
8214 text until a linefeed is reached, and then write everything a
8215 line at a time, so every record written will be an actual line,
8216 not chunks of lines and not (usually doesn't happen, but I've
8217 seen it once) several lines in one record. BIO_f_linebuffer() is
8220 Currently, it's a VMS-only method, because that's where it has
8221 been tested well enough.
8224 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
8225 it can return incorrect results.
8226 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
8227 but it was in 0.9.6-beta[12].)
8230 *) Disable the check for content being present when verifying detached
8231 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
8232 include zero length content when signing messages.
8235 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
8236 BIO_ctrl (for BIO pairs).
8239 *) Add DSO method for VMS.
8242 *) Bug fix: Montgomery multiplication could produce results with the
8246 *) Add RPM specification openssl.spec and modify it to build three
8247 packages. The default package contains applications, application
8248 documentation and run-time libraries. The devel package contains
8249 include files, static libraries and function documentation. The
8250 doc package contains the contents of the doc directory. The original
8251 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
8254 *) Add a large number of documentation files for many SSL routines.
8255 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
8257 *) Add a configuration entry for Sony News 4.
8258 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
8260 *) Don't set the two most significant bits to one when generating a
8261 random number < q in the DSA library.
8264 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
8265 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
8266 the underlying transport is blocking) if a handshake took place.
8267 (The default behaviour is needed by applications such as s_client
8268 and s_server that use select() to determine when to use SSL_read;
8269 but for applications that know in advance when to expect data, it
8270 just makes things more complicated.)
8273 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
8277 *) Add a few more EBCDIC conditionals that make `req' and `x509'
8278 work better on such systems.
8279 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8281 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
8282 Update PKCS12_parse() so it copies the friendlyName and the
8283 keyid to the certificates aux info.
8286 *) Fix bug in PKCS7_verify() which caused an infinite loop
8287 if there was more than one signature.
8288 [Sven Uszpelkat <su@celocom.de>]
8290 *) Major change in util/mkdef.pl to include extra information
8291 about each symbol, as well as presenting variables as well
8292 as functions. This change means that there's n more need
8293 to rebuild the .num files when some algorithms are excluded.
8296 *) Allow the verify time to be set by an application,
8297 rather than always using the current time.
8300 *) Phase 2 verify code reorganisation. The certificate
8301 verify code now looks up an issuer certificate by a
8302 number of criteria: subject name, authority key id
8303 and key usage. It also verifies self signed certificates
8304 by the same criteria. The main comparison function is
8305 X509_check_issued() which performs these checks.
8307 Lot of changes were necessary in order to support this
8308 without completely rewriting the lookup code.
8310 Authority and subject key identifier are now cached.
8312 The LHASH 'certs' is X509_STORE has now been replaced
8313 by a STACK_OF(X509_OBJECT). This is mainly because an
8314 LHASH can't store or retrieve multiple objects with
8315 the same hash value.
8317 As a result various functions (which were all internal
8318 use only) have changed to handle the new X509_STORE
8319 structure. This will break anything that messed round
8320 with X509_STORE internally.
8322 The functions X509_STORE_add_cert() now checks for an
8323 exact match, rather than just subject name.
8325 The X509_STORE API doesn't directly support the retrieval
8326 of multiple certificates matching a given criteria, however
8327 this can be worked round by performing a lookup first
8328 (which will fill the cache with candidate certificates)
8329 and then examining the cache for matches. This is probably
8330 the best we can do without throwing out X509_LOOKUP
8331 entirely (maybe later...).
8333 The X509_VERIFY_CTX structure has been enhanced considerably.
8335 All certificate lookup operations now go via a get_issuer()
8336 callback. Although this currently uses an X509_STORE it
8337 can be replaced by custom lookups. This is a simple way
8338 to bypass the X509_STORE hackery necessary to make this
8339 work and makes it possible to use more efficient techniques
8340 in future. A very simple version which uses a simple
8341 STACK for its trusted certificate store is also provided
8342 using X509_STORE_CTX_trusted_stack().
8344 The verify_cb() and verify() callbacks now have equivalents
8345 in the X509_STORE_CTX structure.
8347 X509_STORE_CTX also has a 'flags' field which can be used
8348 to customise the verify behaviour.
8351 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
8352 excludes S/MIME capabilities.
8355 *) When a certificate request is read in keep a copy of the
8356 original encoding of the signed data and use it when outputing
8357 again. Signatures then use the original encoding rather than
8358 a decoded, encoded version which may cause problems if the
8359 request is improperly encoded.
8362 *) For consistency with other BIO_puts implementations, call
8363 buffer_write(b, ...) directly in buffer_puts instead of calling
8366 In BIO_puts, increment b->num_write as in BIO_write.
8367 [Peter.Sylvester@EdelWeb.fr]
8369 *) Fix BN_mul_word for the case where the word is 0. (We have to use
8370 BN_zero, we may not return a BIGNUM with an array consisting of
8374 *) Avoid calling abort() from within the library when problems are
8375 detected, except if preprocessor symbols have been defined
8376 (such as REF_CHECK, BN_DEBUG etc.).
8379 *) New openssl application 'rsautl'. This utility can be
8380 used for low level RSA operations. DER public key
8381 BIO/fp routines also added.
8384 *) New Configure entry and patches for compiling on QNX 4.
8385 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
8387 *) A demo state-machine implementation was sponsored by
8388 Nuron (http://www.nuron.com/) and is now available in
8389 demos/state_machine.
8392 *) New options added to the 'dgst' utility for signature
8393 generation and verification.
8396 *) Unrecognized PKCS#7 content types are now handled via a
8397 catch all ASN1_TYPE structure. This allows unsupported
8398 types to be stored as a "blob" and an application can
8399 encode and decode it manually.
8402 *) Fix various signed/unsigned issues to make a_strex.c
8404 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
8406 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
8407 length if passed a buffer. ASN1_INTEGER_to_BN failed
8408 if passed a NULL BN and its argument was negative.
8409 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
8411 *) Modification to PKCS#7 encoding routines to output definite
8412 length encoding. Since currently the whole structures are in
8413 memory there's not real point in using indefinite length
8414 constructed encoding. However if OpenSSL is compiled with
8415 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
8418 *) Added BIO_vprintf() and BIO_vsnprintf().
8421 *) Added more prefixes to parse for in the the strings written
8422 through a logging bio, to cover all the levels that are available
8423 through syslog. The prefixes are now:
8425 PANIC, EMERG, EMR => LOG_EMERG
8426 ALERT, ALR => LOG_ALERT
8427 CRIT, CRI => LOG_CRIT
8428 ERROR, ERR => LOG_ERR
8429 WARNING, WARN, WAR => LOG_WARNING
8430 NOTICE, NOTE, NOT => LOG_NOTICE
8431 INFO, INF => LOG_INFO
8432 DEBUG, DBG => LOG_DEBUG
8434 and as before, if none of those prefixes are present at the
8435 beginning of the string, LOG_ERR is chosen.
8437 On Win32, the LOG_* levels are mapped according to this:
8439 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
8440 LOG_WARNING => EVENTLOG_WARNING_TYPE
8441 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
8445 *) Made it possible to reconfigure with just the configuration
8446 argument "reconf" or "reconfigure". The command line arguments
8447 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
8448 and are retrieved from there when reconfiguring.
8452 [Assar Westerlund <assar@sics.se>, Richard Levitte]
8454 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
8457 *) The obj_dat.pl script was messing up the sorting of object
8458 names. The reason was that it compared the quoted version
8459 of strings as a result "OCSP" > "OCSP Signing" because
8460 " > SPACE. Changed script to store unquoted versions of
8461 names and add quotes on output. It was also omitting some
8462 names from the lookup table if they were given a default
8463 value (that is if SN is missing it is given the same
8464 value as LN and vice versa), these are now added on the
8465 grounds that if an object has a name we should be able to
8466 look it up. Finally added warning output when duplicate
8467 short or long names are found.
8470 *) Changes needed for Tandem NSK.
8471 [Scott Uroff <scott@xypro.com>]
8473 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
8474 RSA_padding_check_SSLv23(), special padding was never detected
8475 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
8476 version rollback attacks was not effective.
8478 In s23_clnt.c, don't use special rollback-attack detection padding
8479 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
8480 client; similarly, in s23_srvr.c, don't do the rollback check if
8481 SSL 2.0 is the only protocol enabled in the server.
8484 *) Make it possible to get hexdumps of unprintable data with 'openssl
8485 asn1parse'. By implication, the functions ASN1_parse_dump() and
8486 BIO_dump_indent() are added.
8489 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
8490 these print out strings and name structures based on various
8491 flags including RFC2253 support and proper handling of
8492 multibyte characters. Added options to the 'x509' utility
8493 to allow the various flags to be set.
8496 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
8497 Also change the functions X509_cmp_current_time() and
8498 X509_gmtime_adj() work with an ASN1_TIME structure,
8499 this will enable certificates using GeneralizedTime in validity
8500 dates to be checked.
8503 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
8504 negative public key encodings) on by default,
8505 NO_NEG_PUBKEY_BUG can be set to disable it.
8508 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
8509 content octets. An i2c_ASN1_OBJECT is unnecessary because
8510 the encoding can be trivially obtained from the structure.
8513 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
8514 not read locks (CRYPTO_r_[un]lock).
8517 *) A first attempt at creating official support for shared
8518 libraries through configuration. I've kept it so the
8519 default is static libraries only, and the OpenSSL programs
8520 are always statically linked for now, but there are
8521 preparations for dynamic linking in place.
8522 This has been tested on Linux and Tru64.
8525 *) Randomness polling function for Win9x, as described in:
8526 Peter Gutmann, Software Generation of Practically Strong
8530 *) Fix so PRNG is seeded in req if using an already existing
8534 *) New options to smime application. -inform and -outform
8535 allow alternative formats for the S/MIME message including
8536 PEM and DER. The -content option allows the content to be
8537 specified separately. This should allow things like Netscape
8538 form signing output easier to verify.
8541 *) Fix the ASN1 encoding of tags using the 'long form'.
8544 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
8545 STRING types. These convert content octets to and from the
8546 underlying type. The actual tag and length octets are
8547 already assumed to have been read in and checked. These
8548 are needed because all other string types have virtually
8549 identical handling apart from the tag. By having versions
8550 of the ASN1 functions that just operate on content octets
8551 IMPLICIT tagging can be handled properly. It also allows
8552 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
8553 and ASN1_INTEGER are identical apart from the tag.
8556 *) Change the handling of OID objects as follows:
8558 - New object identifiers are inserted in objects.txt, following
8559 the syntax given in objects.README.
8560 - objects.pl is used to process obj_mac.num and create a new
8562 - obj_dat.pl is used to create a new obj_dat.h, using the data in
8565 This is currently kind of a hack, and the perl code in objects.pl
8566 isn't very elegant, but it works as I intended. The simplest way
8567 to check that it worked correctly is to look in obj_dat.h and
8568 check the array nid_objs and make sure the objects haven't moved
8569 around (this is important!). Additions are OK, as well as
8570 consistent name changes.
8573 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
8576 *) Addition of the command line parameter '-rand file' to 'openssl req'.
8577 The given file adds to whatever has already been seeded into the
8578 random pool through the RANDFILE configuration file option or
8579 environment variable, or the default random state file.
8582 *) mkstack.pl now sorts each macro group into lexical order.
8583 Previously the output order depended on the order the files
8584 appeared in the directory, resulting in needless rewriting
8588 *) Patches to make OpenSSL compile under Win32 again. Mostly
8589 work arounds for the VC++ problem that it treats func() as
8590 func(void). Also stripped out the parts of mkdef.pl that
8591 added extra typesafe functions: these no longer exist.
8594 *) Reorganisation of the stack code. The macros are now all
8595 collected in safestack.h . Each macro is defined in terms of
8596 a "stack macro" of the form SKM_<name>(type, a, b). The
8597 DEBUG_SAFESTACK is now handled in terms of function casts,
8598 this has the advantage of retaining type safety without the
8599 use of additional functions. If DEBUG_SAFESTACK is not defined
8600 then the non typesafe macros are used instead. Also modified the
8601 mkstack.pl script to handle the new form. Needs testing to see
8602 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
8603 the default if no major problems. Similar behaviour for ASN1_SET_OF
8604 and PKCS12_STACK_OF.
8607 *) When some versions of IIS use the 'NET' form of private key the
8608 key derivation algorithm is different. Normally MD5(password) is
8609 used as a 128 bit RC4 key. In the modified case
8610 MD5(MD5(password) + "SGCKEYSALT") is used instead. Added some
8611 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
8612 as the old Netscape_RSA functions except they have an additional
8613 'sgckey' parameter which uses the modified algorithm. Also added
8614 an -sgckey command line option to the rsa utility. Thanks to
8615 Adrian Peck <bertie@ncipher.com> for posting details of the modified
8616 algorithm to openssl-dev.
8619 *) The evp_local.h macros were using 'c.##kname' which resulted in
8620 invalid expansion on some systems (SCO 5.0.5 for example).
8621 Corrected to 'c.kname'.
8622 [Phillip Porch <root@theporch.com>]
8624 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
8625 a STACK of email addresses from a certificate or request, these look
8626 in the subject name and the subject alternative name extensions and
8627 omit any duplicate addresses.
8630 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
8631 This makes DSA verification about 2 % faster.
8634 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
8635 (meaning that now 2^5 values will be precomputed, which is only 4 KB
8636 plus overhead for 1024 bit moduli).
8637 This makes exponentiations about 0.5 % faster for 1024 bit
8638 exponents (as measured by "openssl speed rsa2048").
8641 *) Rename memory handling macros to avoid conflicts with other
8643 Malloc => OPENSSL_malloc
8644 Malloc_locked => OPENSSL_malloc_locked
8645 Realloc => OPENSSL_realloc
8646 Free => OPENSSL_free
8649 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
8650 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
8653 *) CygWin32 support.
8654 [John Jarvie <jjarvie@newsguy.com>]
8656 *) The type-safe stack code has been rejigged. It is now only compiled
8657 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
8658 by default all type-specific stack functions are "#define"d back to
8659 standard stack functions. This results in more streamlined output
8660 but retains the type-safety checking possibilities of the original
8664 *) The STACK code has been cleaned up, and certain type declarations
8665 that didn't make a lot of sense have been brought in line. This has
8666 also involved a cleanup of sorts in safestack.h to more correctly
8667 map type-safe stack functions onto their plain stack counterparts.
8668 This work has also resulted in a variety of "const"ifications of
8669 lots of the code, especially "_cmp" operations which should normally
8670 be prototyped with "const" parameters anyway.
8673 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
8674 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
8675 (The PRNG state consists of two parts, the large pool 'state' and 'md',
8676 where all of 'md' is used each time the PRNG is used, but 'state'
8677 is used only indexed by a cyclic counter. As entropy may not be
8678 well distributed from the beginning, 'md' is important as a
8679 chaining variable. However, the output function chains only half
8680 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
8681 all of 'md', and seeding with STATE_SIZE dummy bytes will result
8682 in all of 'state' being rewritten, with the new values depending
8683 on virtually all of 'md'. This overcomes the 80 bit limitation.)
8686 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
8687 the handshake is continued after ssl_verify_cert_chain();
8688 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
8689 can lead to 'unexplainable' connection aborts later.
8690 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
8692 *) Major EVP API cipher revision.
8693 Add hooks for extra EVP features. This allows various cipher
8694 parameters to be set in the EVP interface. Support added for variable
8695 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
8696 setting of RC2 and RC5 parameters.
8698 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
8701 Remove lots of duplicated code from the EVP library. For example *every*
8702 cipher init() function handles the 'iv' in the same way according to the
8703 cipher mode. They also all do nothing if the 'key' parameter is NULL and
8704 for CFB and OFB modes they zero ctx->num.
8706 New functionality allows removal of S/MIME code RC2 hack.
8708 Most of the routines have the same form and so can be declared in terms
8711 By shifting this to the top level EVP_CipherInit() it can be removed from
8712 all individual ciphers. If the cipher wants to handle IVs or keys
8713 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
8716 Change lots of functions like EVP_EncryptUpdate() to now return a
8717 value: although software versions of the algorithms cannot fail
8718 any installed hardware versions can.
8721 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
8722 this option is set, tolerate broken clients that send the negotiated
8723 protocol version number instead of the requested protocol version
8727 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
8728 i.e. non-zero for export ciphersuites, zero otherwise.
8729 Previous versions had this flag inverted, inconsistent with
8730 rsa_tmp_cb (..._TMP_RSA_CB).
8731 [Bodo Moeller; problem reported by Amit Chopra]
8733 *) Add missing DSA library text string. Work around for some IIS
8734 key files with invalid SEQUENCE encoding.
8737 *) Add a document (doc/standards.txt) that list all kinds of standards
8738 and so on that are implemented in OpenSSL.
8741 *) Enhance c_rehash script. Old version would mishandle certificates
8742 with the same subject name hash and wouldn't handle CRLs at all.
8743 Added -fingerprint option to crl utility, to support new c_rehash
8747 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
8750 *) Fix for SSL server purpose checking. Server checking was
8751 rejecting certificates which had extended key usage present
8752 but no ssl client purpose.
8753 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
8755 *) Make PKCS#12 code work with no password. The PKCS#12 spec
8756 is a little unclear about how a blank password is handled.
8757 Since the password in encoded as a BMPString with terminating
8758 double NULL a zero length password would end up as just the
8759 double NULL. However no password at all is different and is
8760 handled differently in the PKCS#12 key generation code. NS
8761 treats a blank password as zero length. MSIE treats it as no
8762 password on export: but it will try both on import. We now do
8763 the same: PKCS12_parse() tries zero length and no password if
8764 the password is set to "" or NULL (NULL is now a valid password:
8765 it wasn't before) as does the pkcs12 application.
8768 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
8769 perror when PEM_read_bio_X509_REQ fails, the error message must
8770 be obtained from the error queue.
8773 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
8774 it in ERR_remove_state if appropriate, and change ERR_get_state
8775 accordingly to avoid race conditions (this is necessary because
8776 thread_hash is no longer constant once set).
8779 *) Bugfix for linux-elf makefile.one.
8782 *) RSA_get_default_method() will now cause a default
8783 RSA_METHOD to be chosen if one doesn't exist already.
8784 Previously this was only set during a call to RSA_new()
8785 or RSA_new_method(NULL) meaning it was possible for
8786 RSA_get_default_method() to return NULL.
8789 *) Added native name translation to the existing DSO code
8790 that will convert (if the flag to do so is set) filenames
8791 that are sufficiently small and have no path information
8792 into a canonical native form. Eg. "blah" converted to
8793 "libblah.so" or "blah.dll" etc.
8796 *) New function ERR_error_string_n(e, buf, len) which is like
8797 ERR_error_string(e, buf), but writes at most 'len' bytes
8798 including the 0 terminator. For ERR_error_string_n, 'buf'
8800 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
8802 *) CONF library reworked to become more general. A new CONF
8803 configuration file reader "class" is implemented as well as a
8804 new functions (NCONF_*, for "New CONF") to handle it. The now
8805 old CONF_* functions are still there, but are reimplemented to
8806 work in terms of the new functions. Also, a set of functions
8807 to handle the internal storage of the configuration data is
8808 provided to make it easier to write new configuration file
8809 reader "classes" (I can definitely see something reading a
8810 configuration file in XML format, for example), called _CONF_*,
8811 or "the configuration storage API"...
8813 The new configuration file reading functions are:
8815 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
8816 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
8818 NCONF_default, NCONF_WIN32
8820 NCONF_dump_fp, NCONF_dump_bio
8822 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
8823 NCONF_new creates a new CONF object. This works in the same way
8824 as other interfaces in OpenSSL, like the BIO interface.
8825 NCONF_dump_* dump the internal storage of the configuration file,
8826 which is useful for debugging. All other functions take the same
8827 arguments as the old CONF_* functions wth the exception of the
8828 first that must be a `CONF *' instead of a `LHASH *'.
8830 To make it easer to use the new classes with the old CONF_* functions,
8831 the function CONF_set_default_method is provided.
8834 *) Add '-tls1' option to 'openssl ciphers', which was already
8835 mentioned in the documentation but had not been implemented.
8836 (This option is not yet really useful because even the additional
8837 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
8840 *) Initial DSO code added into libcrypto for letting OpenSSL (and
8841 OpenSSL-based applications) load shared libraries and bind to
8842 them in a portable way.
8843 [Geoff Thorpe, with contributions from Richard Levitte]
8845 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
8847 *) Make sure _lrotl and _lrotr are only used with MSVC.
8849 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
8850 (the default implementation of RAND_status).
8852 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
8853 to '-clrext' (= clear extensions), as intended and documented.
8854 [Bodo Moeller; inconsistency pointed out by Michael Attili
8857 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
8858 was larger than the MD block size.
8859 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
8861 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
8862 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
8863 using the passed key: if the passed key was a private key the result
8864 of X509_print(), for example, would be to print out all the private key
8868 *) des_quad_cksum() byte order bug fix.
8869 [Ulf Möller, using the problem description in krb4-0.9.7, where
8870 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
8872 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
8874 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
8876 *) For easily testing in shell scripts whether some command
8877 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
8878 returns with exit code 0 iff no command of the given name is available.
8879 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
8880 the output goes to stdout and nothing is printed to stderr.
8881 Additional arguments are always ignored.
8883 Since for each cipher there is a command of the same name,
8884 the 'no-cipher' compilation switches can be tested this way.
8886 ('openssl no-XXX' is not able to detect pseudo-commands such
8887 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
8890 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
8893 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
8894 is set; it will be thrown away anyway because each handshake creates
8896 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
8897 to parameters -- in previous versions (since OpenSSL 0.9.3) the
8898 'default key' from SSL_CTX_set_tmp_dh would always be lost, meaning
8899 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
8902 *) New s_client option -ign_eof: EOF at stdin is ignored, and
8903 'Q' and 'R' lose their special meanings (quit/renegotiate).
8904 This is part of what -quiet does; unlike -quiet, -ign_eof
8905 does not suppress any output.
8908 *) Add compatibility options to the purpose and trust code. The
8909 purpose X509_PURPOSE_ANY is "any purpose" which automatically
8910 accepts a certificate or CA, this was the previous behaviour,
8911 with all the associated security issues.
8913 X509_TRUST_COMPAT is the old trust behaviour: only and
8914 automatically trust self signed roots in certificate store. A
8915 new trust setting X509_TRUST_DEFAULT is used to specify that
8916 a purpose has no associated trust setting and it should instead
8917 use the value in the default purpose.
8920 *) Fix the PKCS#8 DSA private key code so it decodes keys again
8921 and fix a memory leak.
8924 *) In util/mkerr.pl (which implements 'make errors'), preserve
8925 reason strings from the previous version of the .c file, as
8926 the default to have only downcase letters (and digits) in
8927 automatically generated reasons codes is not always appropriate.
8930 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
8931 using strerror. Previously, ERR_reason_error_string() returned
8932 library names as reason strings for SYSerr; but SYSerr is a special
8933 case where small numbers are errno values, not library numbers.
8936 *) Add '-dsaparam' option to 'openssl dhparam' application. This
8937 converts DSA parameters into DH parameters. (When creating parameters,
8938 DSA_generate_parameters is used.)
8941 *) Include 'length' (recommended exponent length) in C code generated
8942 by 'openssl dhparam -C'.
8945 *) The second argument to set_label in perlasm was already being used
8946 so couldn't be used as a "file scope" flag. Moved to third argument
8950 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
8951 instead of RAND_bytes for encryption IVs and salts.
8954 *) Include RAND_status() into RAND_METHOD instead of implementing
8955 it only for md_rand.c Otherwise replacing the PRNG by calling
8956 RAND_set_rand_method would be impossible.
8959 *) Don't let DSA_generate_key() enter an infinite loop if the random
8960 number generation fails.
8963 *) New 'rand' application for creating pseudo-random output.
8966 *) Added configuration support for Linux/IA64
8967 [Rolf Haberrecker <rolf@suse.de>]
8969 *) Assembler module support for Mingw32.
8972 *) Shared library support for HPUX (in shlib/).
8973 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
8975 *) Shared library support for Solaris gcc.
8976 [Lutz Behnke <behnke@trustcenter.de>]
8978 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
8980 *) PKCS7_encrypt() was adding text MIME headers twice because they
8981 were added manually and by SMIME_crlf_copy().
8984 *) In bntest.c don't call BN_rand with zero bits argument.
8985 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
8987 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
8988 case was implemented. This caused BN_div_recp() to fail occasionally.
8991 *) Add an optional second argument to the set_label() in the perl
8992 assembly language builder. If this argument exists and is set
8993 to 1 it signals that the assembler should use a symbol whose
8994 scope is the entire file, not just the current function. This
8995 is needed with MASM which uses the format label:: for this scope.
8996 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
8998 *) Change the ASN1 types so they are typedefs by default. Before
8999 almost all types were #define'd to ASN1_STRING which was causing
9000 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
9004 *) Change names of new functions to the new get1/get0 naming
9005 convention: After 'get1', the caller owns a reference count
9006 and has to call ..._free; 'get0' returns a pointer to some
9007 data structure without incrementing reference counters.
9008 (Some of the existing 'get' functions increment a reference
9009 counter, some don't.)
9010 Similarly, 'set1' and 'add1' functions increase reference
9011 counters or duplicate objects.
9014 *) Allow for the possibility of temp RSA key generation failure:
9015 the code used to assume it always worked and crashed on failure.
9018 *) Fix potential buffer overrun problem in BIO_printf().
9019 [Ulf Möller, using public domain code by Patrick Powell; problem
9020 pointed out by David Sacerdote <das33@cornell.edu>]
9022 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
9023 RAND_egd() and RAND_status(). In the command line application,
9024 the EGD socket can be specified like a seed file using RANDFILE
9028 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
9029 Some CAs (e.g. Verisign) distribute certificates in this form.
9032 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
9033 list to exclude them. This means that no special compilation option
9034 is needed to use anonymous DH: it just needs to be included in the
9038 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
9039 EVP_MD_type. The old functionality is available in a new macro called
9040 EVP_MD_md(). Change code that uses it and update docs.
9043 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
9044 where the 'void *' argument is replaced by a function pointer argument.
9045 Previously 'void *' was abused to point to functions, which works on
9046 many platforms, but is not correct. As these functions are usually
9047 called by macros defined in OpenSSL header files, most source code
9048 should work without changes.
9051 *) <openssl/opensslconf.h> (which is created by Configure) now contains
9052 sections with information on -D... compiler switches used for
9053 compiling the library so that applications can see them. To enable
9054 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
9055 must be defined. E.g.,
9056 #define OPENSSL_ALGORITHM_DEFINES
9057 #include <openssl/opensslconf.h>
9058 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
9059 [Richard Levitte, Ulf and Bodo Möller]
9061 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
9065 *) Change the 'other' type in certificate aux info to a STACK_OF
9066 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
9067 the required ASN1 format: arbitrary types determined by an OID.
9070 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
9071 argument to 'req'. This is not because the function is newer or
9072 better than others it just uses the work 'NEW' in the certificate
9073 request header lines. Some software needs this.
9076 *) Reorganise password command line arguments: now passwords can be
9077 obtained from various sources. Delete the PEM_cb function and make
9078 it the default behaviour: i.e. if the callback is NULL and the
9079 usrdata argument is not NULL interpret it as a null terminated pass
9080 phrase. If usrdata and the callback are NULL then the pass phrase
9081 is prompted for as usual.
9084 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
9085 the support is automatically enabled. The resulting binaries will
9086 autodetect the card and use it if present.
9087 [Ben Laurie and Compaq Inc.]
9089 *) Work around for Netscape hang bug. This sends certificate request
9090 and server done in one record. Since this is perfectly legal in the
9091 SSL/TLS protocol it isn't a "bug" option and is on by default. See
9092 the bugs/SSLv3 entry for more info.
9095 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
9098 *) Add -rand argument to smime and pkcs12 applications and read/write
9102 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
9105 *) Add command line password options to the remaining applications.
9108 *) Bug fix for BN_div_recp() for numerators with an even number of
9112 *) More tests in bntest.c, and changed test_bn output.
9115 *) ./config recognizes MacOS X now.
9118 *) Bug fix for BN_div() when the first words of num and divsor are
9119 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
9122 *) Add support for various broken PKCS#8 formats, and command line
9123 options to produce them.
9126 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
9127 get temporary BIGNUMs from a BN_CTX.
9130 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
9134 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
9135 include a #define from the old name to the new. The original intent
9136 was that statically linked binaries could for example just call
9137 SSLeay_add_all_ciphers() to just add ciphers to the table and not
9138 link with digests. This never worked because SSLeay_add_all_digests()
9139 and SSLeay_add_all_ciphers() were in the same source file so calling
9140 one would link with the other. They are now in separate source files.
9143 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
9146 *) Use a less unusual form of the Miller-Rabin primality test (it used
9147 a binary algorithm for exponentiation integrated into the Miller-Rabin
9148 loop, our standard modexp algorithms are faster).
9151 *) Support for the EBCDIC character set completed.
9152 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
9154 *) Source code cleanups: use const where appropriate, eliminate casts,
9155 use void * instead of char * in lhash.
9158 *) Bugfix: ssl3_send_server_key_exchange was not restartable
9159 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
9160 this the server could overwrite ephemeral keys that the client
9164 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
9165 using 50 iterations of the Rabin-Miller test.
9167 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
9168 iterations of the Rabin-Miller test as required by the appendix
9169 to FIPS PUB 186[-1]) instead of DSA_is_prime.
9170 As BN_is_prime_fasttest includes trial division, DSA parameter
9171 generation becomes much faster.
9173 This implies a change for the callback functions in DSA_is_prime
9174 and DSA_generate_parameters: The callback function is called once
9175 for each positive witness in the Rabin-Miller test, not just
9176 occasionally in the inner loop; and the parameters to the
9177 callback function now provide an iteration count for the outer
9178 loop rather than for the current invocation of the inner loop.
9179 DSA_generate_parameters additionally can call the callback
9180 function with an 'iteration count' of -1, meaning that a
9181 candidate has passed the trial division test (when q is generated
9182 from an application-provided seed, trial division is skipped).
9185 *) New function BN_is_prime_fasttest that optionally does trial
9186 division before starting the Rabin-Miller test and has
9187 an additional BN_CTX * argument (whereas BN_is_prime always
9188 has to allocate at least one BN_CTX).
9189 'callback(1, -1, cb_arg)' is called when a number has passed the
9190 trial division stage.
9193 *) Fix for bug in CRL encoding. The validity dates weren't being handled
9197 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
9200 *) New function BN_pseudo_rand().
9203 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
9204 bignum version of BN_from_montgomery() with the working code from
9205 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
9209 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
9210 made it impossible to use the same SSL_SESSION data structure in
9211 SSL2 clients in multiple threads.
9214 *) The return value of RAND_load_file() no longer counts bytes obtained
9215 by stat(). RAND_load_file(..., -1) is new and uses the complete file
9216 to seed the PRNG (previously an explicit byte count was required).
9217 [Ulf Möller, Bodo Möller]
9219 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
9220 used (char *) instead of (void *) and had casts all over the place.
9223 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
9226 *) Retain source code compatibility for BN_prime_checks macro:
9227 BN_is_prime(..., BN_prime_checks, ...) now uses
9228 BN_prime_checks_for_size to determine the appropriate number of
9229 Rabin-Miller iterations.
9232 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
9233 DH_CHECK_P_NOT_SAFE_PRIME.
9234 (Check if this is true? OpenPGP calls them "strong".)
9237 *) Merge the functionality of "dh" and "gendh" programs into a new program
9238 "dhparam". The old programs are retained for now but will handle DH keys
9239 (instead of parameters) in future.
9242 *) Make the ciphers, s_server and s_client programs check the return values
9243 when a new cipher list is set.
9246 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
9247 ciphers. Before when the 56bit ciphers were enabled the sorting was
9250 The syntax for the cipher sorting has been extended to support sorting by
9251 cipher-strength (using the strength_bits hard coded in the tables).
9252 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
9254 Fix a bug in the cipher-command parser: when supplying a cipher command
9255 string with an "undefined" symbol (neither command nor alphanumeric
9256 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
9257 an error is flagged.
9259 Due to the strength-sorting extension, the code of the
9260 ssl_create_cipher_list() function was completely rearranged. I hope that
9261 the readability was also increased :-)
9262 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
9264 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
9265 for the first serial number and places 2 in the serial number file. This
9266 avoids problems when the root CA is created with serial number zero and
9267 the first user certificate has the same issuer name and serial number
9271 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
9272 the new code. Add documentation for this stuff.
9275 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
9276 X509_*() to X509at_*() on the grounds that they don't handle X509
9277 structures and behave in an analogous way to the X509v3 functions:
9278 they shouldn't be called directly but wrapper functions should be used
9281 So we also now have some wrapper functions that call the X509at functions
9282 when passed certificate requests. (TO DO: similar things can be done with
9283 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
9284 things. Some of these need some d2i or i2d and print functionality
9285 because they handle more complex structures.)
9288 *) Add missing #ifndefs that caused missing symbols when building libssl
9289 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
9290 NO_RSA in ssl/s2*.c.
9291 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
9293 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
9294 has a return value which indicates the quality of the random data
9295 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
9296 error queue. New function RAND_pseudo_bytes() generates output that is
9297 guaranteed to be unique but not unpredictable. RAND_add is like
9298 RAND_seed, but takes an extra argument for an entropy estimate
9299 (RAND_seed always assumes full entropy).
9302 *) Do more iterations of Rabin-Miller probable prime test (specifically,
9303 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
9304 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
9305 in crypto/bn/bn_prime.c for the complete table). This guarantees a
9306 false-positive rate of at most 2^-80 for random input.
9309 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
9312 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
9313 in the 0.9.5 release), this returns the chain
9314 from an X509_CTX structure with a dup of the stack and all
9315 the X509 reference counts upped: so the stack will exist
9316 after X509_CTX_cleanup() has been called. Modify pkcs12.c
9319 Also make SSL_SESSION_print() print out the verify return
9323 *) Add manpage for the pkcs12 command. Also change the default
9324 behaviour so MAC iteration counts are used unless the new
9325 -nomaciter option is used. This improves file security and
9326 only older versions of MSIE (4.0 for example) need it.
9329 *) Honor the no-xxx Configure options when creating .DEF files.
9332 *) Add PKCS#10 attributes to field table: challengePassword,
9333 unstructuredName and unstructuredAddress. These are taken from
9334 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
9335 international characters are used.
9337 More changes to X509_ATTRIBUTE code: allow the setting of types
9338 based on strings. Remove the 'loc' parameter when adding
9339 attributes because these will be a SET OF encoding which is sorted
9343 *) Initial changes to the 'req' utility to allow request generation
9344 automation. This will allow an application to just generate a template
9345 file containing all the field values and have req construct the
9348 Initial support for X509_ATTRIBUTE handling. Stacks of these are
9349 used all over the place including certificate requests and PKCS#7
9350 structures. They are currently handled manually where necessary with
9351 some primitive wrappers for PKCS#7. The new functions behave in a
9352 manner analogous to the X509 extension functions: they allow
9353 attributes to be looked up by NID and added.
9355 Later something similar to the X509V3 code would be desirable to
9356 automatically handle the encoding, decoding and printing of the
9357 more complex types. The string types like challengePassword can
9358 be handled by the string table functions.
9360 Also modified the multi byte string table handling. Now there is
9361 a 'global mask' which masks out certain types. The table itself
9362 can use the flag STABLE_NO_MASK to ignore the mask setting: this
9363 is useful when for example there is only one permissible type
9364 (as in countryName) and using the mask might result in no valid
9368 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
9369 SSL_get_peer_finished to allow applications to obtain the latest
9370 Finished messages sent to the peer or expected from the peer,
9371 respectively. (SSL_get_peer_finished is usually the Finished message
9372 actually received from the peer, otherwise the protocol will be aborted.)
9374 As the Finished message are message digests of the complete handshake
9375 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
9376 be used for external authentication procedures when the authentication
9377 provided by SSL/TLS is not desired or is not enough.
9380 *) Enhanced support for Alpha Linux is added. Now ./config checks if
9381 the host supports BWX extension and if Compaq C is present on the
9382 $PATH. Just exploiting of the BWX extension results in 20-30%
9383 performance kick for some algorithms, e.g. DES and RC4 to mention
9384 a couple. Compaq C in turn generates ~20% faster code for MD5 and
9388 *) Add support for MS "fast SGC". This is arguably a violation of the
9389 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
9390 weak crypto and after checking the certificate is SGC a second one
9391 with strong crypto. MS SGC stops the first handshake after receiving
9392 the server certificate message and sends a second client hello. Since
9393 a server will typically do all the time consuming operations before
9394 expecting any further messages from the client (server key exchange
9395 is the most expensive) there is little difference between the two.
9397 To get OpenSSL to support MS SGC we have to permit a second client
9398 hello message after we have sent server done. In addition we have to
9399 reset the MAC if we do get this second client hello.
9402 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
9403 if a DER encoded private key is RSA or DSA traditional format. Changed
9404 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
9405 format DER encoded private key. Newer code should use PKCS#8 format which
9406 has the key type encoded in the ASN1 structure. Added DER private key
9407 support to pkcs8 application.
9410 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
9411 ciphersuites has been selected (as required by the SSL 3/TLS 1
9412 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
9413 is set, we interpret this as a request to violate the specification
9414 (the worst that can happen is a handshake failure, and 'correct'
9415 behaviour would result in a handshake failure anyway).
9418 *) In SSL_CTX_add_session, take into account that there might be multiple
9419 SSL_SESSION structures with the same session ID (e.g. when two threads
9420 concurrently obtain them from an external cache).
9421 The internal cache can handle only one SSL_SESSION with a given ID,
9422 so if there's a conflict, we now throw out the old one to achieve
9426 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
9427 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
9428 some routines that use cipher OIDs: some ciphers do not have OIDs
9429 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
9433 *) Simplify the trust setting structure and code. Now we just have
9434 two sequences of OIDs for trusted and rejected settings. These will
9435 typically have values the same as the extended key usage extension
9436 and any application specific purposes.
9438 The trust checking code now has a default behaviour: it will just
9439 check for an object with the same NID as the passed id. Functions can
9440 be provided to override either the default behaviour or the behaviour
9441 for a given id. SSL client, server and email already have functions
9442 in place for compatibility: they check the NID and also return "trusted"
9443 if the certificate is self signed.
9446 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
9447 traditional format into an EVP_PKEY structure.
9450 *) Add a password callback function PEM_cb() which either prompts for
9451 a password if usr_data is NULL or otherwise assumes it is a null
9452 terminated password. Allow passwords to be passed on command line
9453 environment or config files in a few more utilities.
9456 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
9457 keys. Add some short names for PKCS#8 PBE algorithms and allow them
9458 to be specified on the command line for the pkcs8 and pkcs12 utilities.
9459 Update documentation.
9462 *) Support for ASN1 "NULL" type. This could be handled before by using
9463 ASN1_TYPE but there wasn't any function that would try to read a NULL
9464 and produce an error if it couldn't. For compatibility we also have
9465 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
9466 don't allocate anything because they don't need to.
9469 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
9471 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
9473 *) Rebuild of the memory allocation routines used by OpenSSL code and
9474 possibly others as well. The purpose is to make an interface that
9475 provide hooks so anyone can build a separate set of allocation and
9476 deallocation routines to be used by OpenSSL, for example memory
9477 pool implementations, or something else, which was previously hard
9478 since Malloc(), Realloc() and Free() were defined as macros having
9479 the values malloc, realloc and free, respectively (except for Win32
9480 compilations). The same is provided for memory debugging code.
9481 OpenSSL already comes with functionality to find memory leaks, but
9482 this gives people a chance to debug other memory problems.
9484 With these changes, a new set of functions and macros have appeared:
9486 CRYPTO_set_mem_debug_functions() [F]
9487 CRYPTO_get_mem_debug_functions() [F]
9488 CRYPTO_dbg_set_options() [F]
9489 CRYPTO_dbg_get_options() [F]
9490 CRYPTO_malloc_debug_init() [M]
9492 The memory debug functions are NULL by default, unless the library
9493 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
9494 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
9495 gives the standard debugging functions that come with OpenSSL) or
9496 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
9497 provided by the library user) must be used. When the standard
9498 debugging functions are used, CRYPTO_dbg_set_options can be used to
9499 request additional information:
9500 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
9501 the CRYPTO_MDEBUG_xxx macro when compiling the library.
9503 Also, things like CRYPTO_set_mem_functions will always give the
9504 expected result (the new set of functions is used for allocation
9505 and deallocation) at all times, regardless of platform and compiler
9508 To finish it up, some functions that were never use in any other
9509 way than through macros have a new API and new semantic:
9512 CRYPTO_dbg_realloc()
9515 All macros of value have retained their old syntax.
9516 [Richard Levitte and Bodo Moeller]
9518 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
9519 ordering of SMIMECapabilities wasn't in "strength order" and there
9520 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
9524 *) Some ASN1 types with illegal zero length encoding (INTEGER,
9525 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
9526 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
9528 *) Merge in my S/MIME library for OpenSSL. This provides a simple
9529 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
9530 functionality to handle multipart/signed properly) and a utility
9531 called 'smime' to call all this stuff. This is based on code I
9532 originally wrote for Celo who have kindly allowed it to be
9533 included in OpenSSL.
9536 *) Add variants des_set_key_checked and des_set_key_unchecked of
9537 des_set_key (aka des_key_sched). Global variable des_check_key
9538 decides which of these is called by des_set_key; this way
9539 des_check_key behaves as it always did, but applications and
9540 the library itself, which was buggy for des_check_key == 1,
9541 have a cleaner way to pick the version they need.
9544 *) New function PKCS12_newpass() which changes the password of a
9548 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
9549 dynamic mix. In both cases the ids can be used as an index into the
9550 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
9551 functions so they accept a list of the field values and the
9552 application doesn't need to directly manipulate the X509_TRUST
9556 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
9560 *) Modify the way the V3 extension code looks up extensions. This now
9561 works in a similar way to the object code: we have some "standard"
9562 extensions in a static table which is searched with OBJ_bsearch()
9563 and the application can add dynamic ones if needed. The file
9564 crypto/x509v3/ext_dat.h now has the info: this file needs to be
9565 updated whenever a new extension is added to the core code and kept
9566 in ext_nid order. There is a simple program 'tabtest.c' which checks
9567 this. New extensions are not added too often so this file can readily
9568 be maintained manually.
9570 There are two big advantages in doing things this way. The extensions
9571 can be looked up immediately and no longer need to be "added" using
9572 X509V3_add_standard_extensions(): this function now does nothing.
9573 [Side note: I get *lots* of email saying the extension code doesn't
9574 work because people forget to call this function]
9575 Also no dynamic allocation is done unless new extensions are added:
9576 so if we don't add custom extensions there is no need to call
9577 X509V3_EXT_cleanup().
9580 *) Modify enc utility's salting as follows: make salting the default. Add a
9581 magic header, so unsalted files fail gracefully instead of just decrypting
9582 to garbage. This is because not salting is a big security hole, so people
9583 should be discouraged from doing it.
9586 *) Fixes and enhancements to the 'x509' utility. It allowed a message
9587 digest to be passed on the command line but it only used this
9588 parameter when signing a certificate. Modified so all relevant
9589 operations are affected by the digest parameter including the
9590 -fingerprint and -x509toreq options. Also -x509toreq choked if a
9591 DSA key was used because it didn't fix the digest.
9594 *) Initial certificate chain verify code. Currently tests the untrusted
9595 certificates for consistency with the verify purpose (which is set
9596 when the X509_STORE_CTX structure is set up) and checks the pathlength.
9598 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
9599 this is because it will reject chains with invalid extensions whereas
9600 every previous version of OpenSSL and SSLeay made no checks at all.
9602 Trust code: checks the root CA for the relevant trust settings. Trust
9603 settings have an initial value consistent with the verify purpose: e.g.
9604 if the verify purpose is for SSL client use it expects the CA to be
9605 trusted for SSL client use. However the default value can be changed to
9606 permit custom trust settings: one example of this would be to only trust
9607 certificates from a specific "secure" set of CAs.
9609 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
9610 which should be used for version portability: especially since the
9611 verify structure is likely to change more often now.
9613 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
9614 to set them. If not set then assume SSL clients will verify SSL servers
9617 Two new options to the verify program: -untrusted allows a set of
9618 untrusted certificates to be passed in and -purpose which sets the
9619 intended purpose of the certificate. If a purpose is set then the
9620 new chain verify code is used to check extension consistency.
9623 *) Support for the authority information access extension.
9626 *) Modify RSA and DSA PEM read routines to transparently handle
9627 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
9628 public keys in a format compatible with certificate
9629 SubjectPublicKeyInfo structures. Unfortunately there were already
9630 functions called *_PublicKey_* which used various odd formats so
9631 these are retained for compatibility: however the DSA variants were
9632 never in a public release so they have been deleted. Changed dsa/rsa
9633 utilities to handle the new format: note no releases ever handled public
9634 keys so we should be OK.
9636 The primary motivation for this change is to avoid the same fiasco
9637 that dogs private keys: there are several incompatible private key
9638 formats some of which are standard and some OpenSSL specific and
9639 require various evil hacks to allow partial transparent handling and
9640 even then it doesn't work with DER formats. Given the option anything
9641 other than PKCS#8 should be dumped: but the other formats have to
9642 stay in the name of compatibility.
9644 With public keys and the benefit of hindsight one standard format
9645 is used which works with EVP_PKEY, RSA or DSA structures: though
9646 it clearly returns an error if you try to read the wrong kind of key.
9648 Added a -pubkey option to the 'x509' utility to output the public key.
9649 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
9650 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
9651 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
9652 that do the same as the EVP_PKEY_assign_*() except they up the
9653 reference count of the added key (they don't "swallow" the
9657 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
9658 CRLs would fail if the file contained no certificates or no CRLs:
9659 added a new function to read in both types and return the number
9660 read: this means that if none are read it will be an error. The
9661 DER versions of the certificate and CRL reader would always fail
9662 because it isn't possible to mix certificates and CRLs in DER format
9663 without choking one or the other routine. Changed this to just read
9664 a certificate: this is the best we can do. Also modified the code
9665 in apps/verify.c to take notice of return codes: it was previously
9666 attempting to read in certificates from NULL pointers and ignoring
9667 any errors: this is one reason why the cert and CRL reader seemed
9668 to work. It doesn't check return codes from the default certificate
9669 routines: these may well fail if the certificates aren't installed.
9672 *) Code to support otherName option in GeneralName.
9675 *) First update to verify code. Change the verify utility
9676 so it warns if it is passed a self signed certificate:
9677 for consistency with the normal behaviour. X509_verify
9678 has been modified to it will now verify a self signed
9679 certificate if *exactly* the same certificate appears
9680 in the store: it was previously impossible to trust a
9681 single self signed certificate. This means that:
9682 openssl verify ss.pem
9683 now gives a warning about a self signed certificate but
9684 openssl verify -CAfile ss.pem ss.pem
9688 *) For servers, store verify_result in SSL_SESSION data structure
9689 (and add it to external session representation).
9690 This is needed when client certificate verifications fails,
9691 but an application-provided verification callback (set by
9692 SSL_CTX_set_cert_verify_callback) allows accepting the session
9693 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
9694 but returns 1): When the session is reused, we have to set
9695 ssl->verify_result to the appropriate error code to avoid
9697 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
9699 *) Fix a bug in the new PKCS#7 code: it didn't consider the
9700 case in PKCS7_dataInit() where the signed PKCS7 structure
9701 didn't contain any existing data because it was being created.
9702 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
9704 *) Add a salt to the key derivation routines in enc.c. This
9705 forms the first 8 bytes of the encrypted file. Also add a
9706 -S option to allow a salt to be input on the command line.
9709 *) New function X509_cmp(). Oddly enough there wasn't a function
9710 to compare two certificates. We do this by working out the SHA1
9711 hash and comparing that. X509_cmp() will be needed by the trust
9715 *) SSL_get1_session() is like SSL_get_session(), but increments
9716 the reference count in the SSL_SESSION returned.
9717 [Geoff Thorpe <geoff@eu.c2.net>]
9719 *) Fix for 'req': it was adding a null to request attributes.
9720 Also change the X509_LOOKUP and X509_INFO code to handle
9721 certificate auxiliary information.
9724 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
9728 *) Add the possibility to add extra information to the memory leak
9729 detecting output, to form tracebacks, showing from where each
9730 allocation was originated: CRYPTO_push_info("constant string") adds
9731 the string plus current file name and line number to a per-thread
9732 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
9733 is like calling CYRPTO_pop_info() until the stack is empty.
9734 Also updated memory leak detection code to be multi-thread-safe.
9737 *) Add options -text and -noout to pkcs7 utility and delete the
9738 encryption options which never did anything. Update docs.
9741 *) Add options to some of the utilities to allow the pass phrase
9742 to be included on either the command line (not recommended on
9743 OSes like Unix) or read from the environment. Update the
9744 manpages and fix a few bugs.
9747 *) Add a few manpages for some of the openssl commands.
9750 *) Fix the -revoke option in ca. It was freeing up memory twice,
9751 leaking and not finding already revoked certificates.
9754 *) Extensive changes to support certificate auxiliary information.
9755 This involves the use of X509_CERT_AUX structure and X509_AUX
9756 functions. An X509_AUX function such as PEM_read_X509_AUX()
9757 can still read in a certificate file in the usual way but it
9758 will also read in any additional "auxiliary information". By
9759 doing things this way a fair degree of compatibility can be
9760 retained: existing certificates can have this information added
9761 using the new 'x509' options.
9763 Current auxiliary information includes an "alias" and some trust
9764 settings. The trust settings will ultimately be used in enhanced
9765 certificate chain verification routines: currently a certificate
9766 can only be trusted if it is self signed and then it is trusted
9770 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
9771 The problem was that one of the replacement routines had not been working
9772 since SSLeay releases. For now the offending routine has been replaced
9773 with non-optimised assembler. Even so, this now gives around 95%
9774 performance improvement for 1024 bit RSA signs.
9777 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
9778 handling. Most clients have the effective key size in bits equal to
9779 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
9780 A few however don't do this and instead use the size of the decrypted key
9781 to determine the RC2 key length and the AlgorithmIdentifier to determine
9782 the effective key length. In this case the effective key length can still
9783 be 40 bits but the key length can be 168 bits for example. This is fixed
9784 by manually forcing an RC2 key into the EVP_PKEY structure because the
9785 EVP code can't currently handle unusual RC2 key sizes: it always assumes
9786 the key length and effective key length are equal.
9789 *) Add a bunch of functions that should simplify the creation of
9790 X509_NAME structures. Now you should be able to do:
9791 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
9792 and have it automatically work out the correct field type and fill in
9793 the structures. The more adventurous can try:
9794 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
9795 and it will (hopefully) work out the correct multibyte encoding.
9798 *) Change the 'req' utility to use the new field handling and multibyte
9799 copy routines. Before the DN field creation was handled in an ad hoc
9800 way in req, ca, and x509 which was rather broken and didn't support
9801 BMPStrings or UTF8Strings. Since some software doesn't implement
9802 BMPStrings or UTF8Strings yet, they can be enabled using the config file
9803 using the dirstring_type option. See the new comment in the default
9804 openssl.cnf for more info.
9807 *) Make crypto/rand/md_rand.c more robust:
9808 - Assure unique random numbers after fork().
9809 - Make sure that concurrent threads access the global counter and
9810 md serializably so that we never lose entropy in them
9811 or use exactly the same state in multiple threads.
9812 Access to the large state is not always serializable because
9813 the additional locking could be a performance killer, and
9814 md should be large enough anyway.
9817 *) New file apps/app_rand.c with commonly needed functionality
9818 for handling the random seed file.
9820 Use the random seed file in some applications that previously did not:
9822 dsaparam -genkey (which also ignored its '-rand' option),
9825 x509 (when signing).
9826 Except on systems with /dev/urandom, it is crucial to have a random
9827 seed file at least for key creation, DSA signing, and for DH exchanges;
9828 for RSA signatures we could do without one.
9830 gendh and gendsa (unlike genrsa) used to read only the first byte
9831 of each file listed in the '-rand' option. The function as previously
9832 found in genrsa is now in app_rand.c and is used by all programs
9833 that support '-rand'.
9836 *) In RAND_write_file, use mode 0600 for creating files;
9837 don't just chmod when it may be too late.
9840 *) Report an error from X509_STORE_load_locations
9841 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
9844 *) New function ASN1_mbstring_copy() this copies a string in either
9845 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
9846 into an ASN1_STRING type. A mask of permissible types is passed
9847 and it chooses the "minimal" type to use or an error if not type
9851 *) Add function equivalents to the various macros in asn1.h. The old
9852 macros are retained with an M_ prefix. Code inside the library can
9853 use the M_ macros. External code (including the openssl utility)
9854 should *NOT* in order to be "shared library friendly".
9857 *) Add various functions that can check a certificate's extensions
9858 to see if it usable for various purposes such as SSL client,
9859 server or S/MIME and CAs of these types. This is currently
9860 VERY EXPERIMENTAL but will ultimately be used for certificate chain
9861 verification. Also added a -purpose flag to x509 utility to
9862 print out all the purposes.
9865 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
9869 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
9870 for, obtain and decode and extension and obtain its critical flag.
9871 This allows all the necessary extension code to be handled in a
9872 single function call.
9875 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
9876 platforms. See crypto/rc4/rc4_enc.c for further details.
9879 *) New -noout option to asn1parse. This causes no output to be produced
9880 its main use is when combined with -strparse and -out to extract data
9881 from a file (which may not be in ASN.1 format).
9884 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
9885 when producing the local key id.
9886 [Richard Levitte <levitte@stacken.kth.se>]
9888 *) New option -dhparam in s_server. This allows a DH parameter file to be
9889 stated explicitly. If it is not stated then it tries the first server
9890 certificate file. The previous behaviour hard coded the filename
9894 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
9895 a public key to be input or output. For example:
9896 openssl rsa -in key.pem -pubout -out pubkey.pem
9897 Also added necessary DSA public key functions to handle this.
9900 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
9901 in the message. This was handled by allowing
9902 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
9903 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
9905 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
9906 to the end of the strings whereas this didn't. This would cause problems
9907 if strings read with d2i_ASN1_bytes() were later modified.
9908 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
9910 *) Fix for base64 decode bug. When a base64 bio reads only one line of
9911 data and it contains EOF it will end up returning an error. This is
9912 caused by input 46 bytes long. The cause is due to the way base64
9913 BIOs find the start of base64 encoded data. They do this by trying a
9914 trial decode on each line until they find one that works. When they
9915 do a flag is set and it starts again knowing it can pass all the
9916 data directly through the decoder. Unfortunately it doesn't reset
9917 the context it uses. This means that if EOF is reached an attempt
9918 is made to pass two EOFs through the context and this causes the
9919 resulting error. This can also cause other problems as well. As is
9920 usual with these problems it takes *ages* to find and the fix is
9921 trivial: move one line.
9922 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
9924 *) Ugly workaround to get s_client and s_server working under Windows. The
9925 old code wouldn't work because it needed to select() on sockets and the
9926 tty (for keypresses and to see if data could be written). Win32 only
9927 supports select() on sockets so we select() with a 1s timeout on the
9928 sockets and then see if any characters are waiting to be read, if none
9929 are present then we retry, we also assume we can always write data to
9930 the tty. This isn't nice because the code then blocks until we've
9931 received a complete line of data and it is effectively polling the
9932 keyboard at 1s intervals: however it's quite a bit better than not
9933 working at all :-) A dedicated Windows application might handle this
9934 with an event loop for example.
9937 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
9938 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
9939 will be called when RSA_sign() and RSA_verify() are used. This is useful
9940 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
9941 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
9942 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
9943 This necessitated the support of an extra signature type NID_md5_sha1
9944 for SSL signatures and modifications to the SSL library to use it instead
9945 of calling RSA_public_decrypt() and RSA_private_encrypt().
9948 *) Add new -verify -CAfile and -CApath options to the crl program, these
9949 will lookup a CRL issuers certificate and verify the signature in a
9950 similar way to the verify program. Tidy up the crl program so it
9951 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
9952 less strict. It will now permit CRL extensions even if it is not
9953 a V2 CRL: this will allow it to tolerate some broken CRLs.
9956 *) Initialize all non-automatic variables each time one of the openssl
9957 sub-programs is started (this is necessary as they may be started
9958 multiple times from the "OpenSSL>" prompt).
9959 [Lennart Bang, Bodo Moeller]
9961 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
9962 removing all other RSA functionality (this is what NO_RSA does). This
9963 is so (for example) those in the US can disable those operations covered
9964 by the RSA patent while allowing storage and parsing of RSA keys and RSA
9968 *) Non-copying interface to BIO pairs.
9969 (still largely untested)
9972 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
9973 ASCII string. This was handled independently in various places before.
9976 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
9977 UTF8 strings a character at a time.
9980 *) Use client_version from client hello to select the protocol
9981 (s23_srvr.c) and for RSA client key exchange verification
9982 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
9985 *) Add various utility functions to handle SPKACs, these were previously
9986 handled by poking round in the structure internals. Added new function
9987 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
9988 print, verify and generate SPKACs. Based on an original idea from
9989 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
9992 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
9995 *) Allow the config file extension section to be overwritten on the
9996 command line. Based on an original idea from Massimiliano Pala
9997 <madwolf@comune.modena.it>. The new option is called -extensions
9998 and can be applied to ca, req and x509. Also -reqexts to override
9999 the request extensions in req and -crlexts to override the crl extensions
10003 *) Add new feature to the SPKAC handling in ca. Now you can include
10004 the same field multiple times by preceding it by "XXXX." for example:
10007 this is the same syntax as used in the req config file.
10010 *) Allow certificate extensions to be added to certificate requests. These
10011 are specified in a 'req_extensions' option of the req section of the
10012 config file. They can be printed out with the -text option to req but
10013 are otherwise ignored at present.
10016 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
10017 data read consists of only the final block it would not decrypted because
10018 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
10019 A misplaced 'break' also meant the decrypted final block might not be
10020 copied until the next read.
10023 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
10024 a few extra parameters to the DH structure: these will be useful if
10025 for example we want the value of 'q' or implement X9.42 DH.
10028 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
10029 provides hooks that allow the default DSA functions or functions on a
10030 "per key" basis to be replaced. This allows hardware acceleration and
10031 hardware key storage to be handled without major modification to the
10032 library. Also added low level modexp hooks and CRYPTO_EX structure and
10033 associated functions.
10036 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
10037 as "read only": it can't be written to and the buffer it points to will
10038 not be freed. Reading from a read only BIO is much more efficient than
10039 a normal memory BIO. This was added because there are several times when
10040 an area of memory needs to be read from a BIO. The previous method was
10041 to create a memory BIO and write the data to it, this results in two
10042 copies of the data and an O(n^2) reading algorithm. There is a new
10043 function BIO_new_mem_buf() which creates a read only memory BIO from
10044 an area of memory. Also modified the PKCS#7 routines to use read only
10048 *) Bugfix: ssl23_get_client_hello did not work properly when called in
10049 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
10050 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
10051 but a retry condition occured while trying to read the rest.
10054 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
10055 NID_pkcs7_encrypted by default: this was wrong since this should almost
10056 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
10057 the encrypted data type: this is a more sensible place to put it and it
10058 allows the PKCS#12 code to be tidied up that duplicated this
10062 *) Changed obj_dat.pl script so it takes its input and output files on
10063 the command line. This should avoid shell escape redirection problems
10067 *) Initial support for certificate extension requests, these are included
10068 in things like Xenroll certificate requests. Included functions to allow
10069 extensions to be obtained and added.
10072 *) -crlf option to s_client and s_server for sending newlines as
10073 CRLF (as required by many protocols).
10076 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
10078 *) Install libRSAglue.a when OpenSSL is built with RSAref.
10079 [Ralf S. Engelschall]
10081 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
10082 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
10084 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
10088 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
10089 DH parameters/keys (q is lost during that conversion, but the resulting
10090 DH parameters contain its length).
10092 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
10093 much faster than DH_generate_parameters (which creates parameters
10094 where p = 2*q + 1), and also the smaller q makes DH computations
10095 much more efficient (160-bit exponentiation instead of 1024-bit
10096 exponentiation); so this provides a convenient way to support DHE
10097 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
10098 utter importance to use
10099 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
10101 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
10102 when such DH parameters are used, because otherwise small subgroup
10103 attacks may become possible!
10106 *) Avoid memory leak in i2d_DHparams.
10109 *) Allow the -k option to be used more than once in the enc program:
10110 this allows the same encrypted message to be read by multiple recipients.
10113 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
10114 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
10115 it will always use the numerical form of the OID, even if it has a short
10119 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
10120 method only got called if p,q,dmp1,dmq1,iqmp components were present,
10121 otherwise bn_mod_exp was called. In the case of hardware keys for example
10122 no private key components need be present and it might store extra data
10123 in the RSA structure, which cannot be accessed from bn_mod_exp.
10124 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
10125 private key operations.
10128 *) Added support for SPARC Linux.
10131 *) pem_password_cb function type incompatibly changed from
10132 typedef int pem_password_cb(char *buf, int size, int rwflag);
10134 ....(char *buf, int size, int rwflag, void *userdata);
10135 so that applications can pass data to their callbacks:
10136 The PEM[_ASN1]_{read,write}... functions and macros now take an
10137 additional void * argument, which is just handed through whenever
10138 the password callback is called.
10139 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
10141 New function SSL_CTX_set_default_passwd_cb_userdata.
10143 Compatibility note: As many C implementations push function arguments
10144 onto the stack in reverse order, the new library version is likely to
10145 interoperate with programs that have been compiled with the old
10146 pem_password_cb definition (PEM_whatever takes some data that
10147 happens to be on the stack as its last argument, and the callback
10148 just ignores this garbage); but there is no guarantee whatsoever that
10151 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
10152 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
10153 problems not only on Windows, but also on some Unix platforms.
10154 To avoid problematic command lines, these definitions are now in an
10155 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
10156 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
10159 *) MIPS III/IV assembler module is reimplemented.
10162 *) More DES library cleanups: remove references to srand/rand and
10163 delete an unused file.
10166 *) Add support for the the free Netwide assembler (NASM) under Win32,
10167 since not many people have MASM (ml) and it can be hard to obtain.
10168 This is currently experimental but it seems to work OK and pass all
10169 the tests. Check out INSTALL.W32 for info.
10172 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
10173 without temporary keys kept an extra copy of the server key,
10174 and connections with temporary keys did not free everything in case
10178 *) New function RSA_check_key and new openssl rsa option -check
10179 for verifying the consistency of RSA keys.
10180 [Ulf Moeller, Bodo Moeller]
10182 *) Various changes to make Win32 compile work:
10183 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
10184 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
10185 comparison" warnings.
10186 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
10189 *) Add a debugging option to PKCS#5 v2 key generation function: when
10190 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
10191 derived keys are printed to stderr.
10194 *) Copy the flags in ASN1_STRING_dup().
10195 [Roman E. Pavlov <pre@mo.msk.ru>]
10197 *) The x509 application mishandled signing requests containing DSA
10198 keys when the signing key was also DSA and the parameters didn't match.
10200 It was supposed to omit the parameters when they matched the signing key:
10201 the verifying software was then supposed to automatically use the CA's
10202 parameters if they were absent from the end user certificate.
10204 Omitting parameters is no longer recommended. The test was also
10205 the wrong way round! This was probably due to unusual behaviour in
10206 EVP_cmp_parameters() which returns 1 if the parameters match.
10207 This meant that parameters were omitted when they *didn't* match and
10208 the certificate was useless. Certificates signed with 'ca' didn't have
10210 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
10212 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
10213 The interface is as follows:
10214 Applications can use
10215 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
10216 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
10217 "off" is now the default.
10218 The library internally uses
10219 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
10220 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
10221 to disable memory-checking temporarily.
10223 Some inconsistent states that previously were possible (and were
10224 even the default) are now avoided.
10226 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
10227 with each memory chunk allocated; this is occasionally more helpful
10228 than just having a counter.
10230 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
10232 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
10236 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
10237 which largely parallels "options", but is for changing API behaviour,
10238 whereas "options" are about protocol behaviour.
10239 Initial "mode" flags are:
10241 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
10242 a single record has been written.
10243 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
10244 retries use the same buffer location.
10245 (But all of the contents must be
10249 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
10252 *) Fix problems with no-hmac etc.
10253 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
10255 *) New functions RSA_get_default_method(), RSA_set_method() and
10256 RSA_get_method(). These allows replacement of RSA_METHODs without having
10257 to mess around with the internals of an RSA structure.
10260 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
10261 Also really enable memory leak checks in openssl.c and in some
10263 [Chad C. Mulligan, Bodo Moeller]
10265 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
10266 up the length of negative integers. This has now been simplified to just
10267 store the length when it is first determined and use it later, rather
10268 than trying to keep track of where data is copied and updating it to
10270 [Steve Henson, reported by Brien Wheeler
10271 <bwheeler@authentica-security.com>]
10273 *) Add a new function PKCS7_signatureVerify. This allows the verification
10274 of a PKCS#7 signature but with the signing certificate passed to the
10275 function itself. This contrasts with PKCS7_dataVerify which assumes the
10276 certificate is present in the PKCS#7 structure. This isn't always the
10277 case: certificates can be omitted from a PKCS#7 structure and be
10278 distributed by "out of band" means (such as a certificate database).
10281 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
10282 function prototypes in pem.h, also change util/mkdef.pl to add the
10283 necessary function names.
10286 *) mk1mf.pl (used by Windows builds) did not properly read the
10287 options set by Configure in the top level Makefile, and Configure
10288 was not even able to write more than one option correctly.
10289 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
10292 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
10293 file to be loaded from a BIO or FILE pointer. The BIO version will
10294 for example allow memory BIOs to contain config info.
10297 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
10298 Whoever hopes to achieve shared-library compatibility across versions
10299 must use this, not the compile-time macro.
10300 (Exercise 0.9.4: Which is the minimum library version required by
10302 Note: All this applies only to multi-threaded programs, others don't
10306 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
10307 through a BIO pair triggered the default case, i.e.
10308 SSLerr(...,SSL_R_UNKNOWN_STATE).
10311 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
10312 can use the SSL library even if none of the specific BIOs is
10316 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
10317 for the encoded length.
10318 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
10320 *) Add initial documentation of the X509V3 functions.
10323 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
10324 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
10325 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
10326 secure PKCS#8 private key format with a high iteration count.
10329 *) Fix determination of Perl interpreter: A perl or perl5
10330 _directory_ in $PATH was also accepted as the interpreter.
10331 [Ralf S. Engelschall]
10333 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
10334 wrong with it but it was very old and did things like calling
10335 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
10336 unusual formatting.
10339 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
10340 to use the new extension code.
10343 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
10344 with macros. This should make it easier to change their form, add extra
10345 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
10349 *) Add to configuration table a new entry that can specify an alternative
10350 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
10351 according to Mark Crispin <MRC@Panda.COM>.
10355 *) DES CBC did not update the IV. Weird.
10358 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
10359 Changing the behaviour of the former might break existing programs --
10360 where IV updating is needed, des_ncbc_encrypt can be used.
10363 *) When bntest is run from "make test" it drives bc to check its
10364 calculations, as well as internally checking them. If an internal check
10365 fails, it needs to cause bc to give a non-zero result or make test carries
10366 on without noticing the failure. Fixed.
10369 *) DES library cleanups.
10372 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
10373 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
10374 ciphers. NOTE: although the key derivation function has been verified
10375 against some published test vectors it has not been extensively tested
10376 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
10380 *) Instead of "mkdir -p", which is not fully portable, use new
10381 Perl script "util/mkdir-p.pl".
10384 *) Rewrite the way password based encryption (PBE) is handled. It used to
10385 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
10386 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
10387 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
10388 the 'parameter' field of the AlgorithmIdentifier is passed to the
10389 underlying key generation function so it must do its own ASN1 parsing.
10390 This has also changed the EVP_PBE_CipherInit() function which now has a
10391 'parameter' argument instead of literal salt and iteration count values
10392 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
10395 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
10396 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
10397 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
10398 KEY" because this clashed with PKCS#8 unencrypted string. Since this
10399 value was just used as a "magic string" and not used directly its
10400 value doesn't matter.
10403 *) Introduce some semblance of const correctness to BN. Shame C doesn't
10407 *) "linux-sparc64" configuration (ultrapenguin).
10408 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
10409 "linux-sparc" configuration.
10410 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
10412 *) config now generates no-xxx options for missing ciphers.
10415 *) Support the EBCDIC character set (work in progress).
10416 File ebcdic.c not yet included because it has a different license.
10417 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
10419 *) Support BS2000/OSD-POSIX.
10420 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
10422 *) Make callbacks for key generation use void * instead of char *.
10425 *) Make S/MIME samples compile (not yet tested).
10428 *) Additional typesafe stacks.
10431 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
10435 Changes between 0.9.3 and 0.9.3a [29 May 1999]
10437 *) New configuration variant "sco5-gcc".
10439 *) Updated some demos.
10440 [Sean O Riordain, Wade Scholine]
10442 *) Add missing BIO_free at exit of pkcs12 application.
10445 *) Fix memory leak in conf.c.
10448 *) Updates for Win32 to assembler version of MD5.
10451 *) Set #! path to perl in apps/der_chop to where we found it
10452 instead of using a fixed path.
10455 *) SHA library changes for irix64-mips4-cc.
10458 *) Improvements for VMS support.
10462 Changes between 0.9.2b and 0.9.3 [24 May 1999]
10464 *) Bignum library bug fix. IRIX 6 passes "make test" now!
10465 This also avoids the problems with SC4.2 and unpatched SC5.
10466 [Andy Polyakov <appro@fy.chalmers.se>]
10468 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
10469 These are required because of the typesafe stack would otherwise break
10470 existing code. If old code used a structure member which used to be STACK
10471 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
10472 sk_num or sk_value it would produce an error because the num, data members
10473 are not present in STACK_OF. Now it just produces a warning. sk_set
10474 replaces the old method of assigning a value to sk_value
10475 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
10476 that does this will no longer work (and should use sk_set instead) but
10477 this could be regarded as a "questionable" behaviour anyway.
10480 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
10481 correctly handle encrypted S/MIME data.
10484 *) Change type of various DES function arguments from des_cblock
10485 (which means, in function argument declarations, pointer to char)
10486 to des_cblock * (meaning pointer to array with 8 char elements),
10487 which allows the compiler to do more typechecking; it was like
10488 that back in SSLeay, but with lots of ugly casts.
10490 Introduce new type const_des_cblock.
10493 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
10494 problems: find RecipientInfo structure that matches recipient certificate
10495 and initialise the ASN1 structures properly based on passed cipher.
10498 *) Belatedly make the BN tests actually check the results.
10501 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
10502 to and from BNs: it was completely broken. New compilation option
10503 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
10504 key elements as negative integers.
10507 *) Reorganize and speed up MD5.
10508 [Andy Polyakov <appro@fy.chalmers.se>]
10511 [Richard Levitte <richard@levitte.org>]
10513 *) New option -out to asn1parse to allow the parsed structure to be
10514 output to a file. This is most useful when combined with the -strparse
10515 option to examine the output of things like OCTET STRINGS.
10518 *) Make SSL library a little more fool-proof by not requiring any longer
10519 that SSL_set_{accept,connect}_state be called before
10520 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
10521 in many applications because usually everything *appeared* to work as
10522 intended anyway -- now it really works as intended).
10525 *) Move openssl.cnf out of lib/.
10528 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
10529 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
10530 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
10531 [Ralf S. Engelschall]
10533 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
10534 handle PKCS#7 enveloped data properly.
10535 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
10537 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
10538 copying pointers. The cert_st handling is changed by this in
10539 various ways (and thus what used to be known as ctx->default_cert
10540 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
10541 any longer when s->cert does not give us what we need).
10542 ssl_cert_instantiate becomes obsolete by this change.
10543 As soon as we've got the new code right (possibly it already is?),
10544 we have solved a couple of bugs of the earlier code where s->cert
10545 was used as if it could not have been shared with other SSL structures.
10547 Note that using the SSL API in certain dirty ways now will result
10548 in different behaviour than observed with earlier library versions:
10549 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
10550 does not influence s as it used to.
10552 In order to clean up things more thoroughly, inside SSL_SESSION
10553 we don't use CERT any longer, but a new structure SESS_CERT
10554 that holds per-session data (if available); currently, this is
10555 the peer's certificate chain and, for clients, the server's certificate
10556 and temporary key. CERT holds only those values that can have
10557 meaningful defaults in an SSL_CTX.
10560 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
10561 from the internal representation. Various PKCS#7 fixes: remove some
10562 evil casts and set the enc_dig_alg field properly based on the signing
10566 *) Allow PKCS#12 password to be set from the command line or the
10567 environment. Let 'ca' get its config file name from the environment
10568 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
10572 *) Allow certificate policies extension to use an IA5STRING for the
10573 organization field. This is contrary to the PKIX definition but
10574 VeriSign uses it and IE5 only recognises this form. Document 'x509'
10578 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
10579 without disallowing inline assembler and the like for non-pedantic builds.
10582 *) Support Borland C++ builder.
10583 [Janez Jere <jj@void.si>, modified by Ulf Möller]
10585 *) Support Mingw32.
10588 *) SHA-1 cleanups and performance enhancements.
10589 [Andy Polyakov <appro@fy.chalmers.se>]
10591 *) Sparc v8plus assembler for the bignum library.
10592 [Andy Polyakov <appro@fy.chalmers.se>]
10594 *) Accept any -xxx and +xxx compiler options in Configure.
10597 *) Update HPUX configuration.
10600 *) Add missing sk_<type>_unshift() function to safestack.h
10601 [Ralf S. Engelschall]
10603 *) New function SSL_CTX_use_certificate_chain_file that sets the
10604 "extra_cert"s in addition to the certificate. (This makes sense
10605 only for "PEM" format files, as chains as a whole are not
10609 *) Support verify_depth from the SSL API.
10610 x509_vfy.c had what can be considered an off-by-one-error:
10611 Its depth (which was not part of the external interface)
10612 was actually counting the number of certificates in a chain;
10613 now it really counts the depth.
10616 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
10617 instead of X509err, which often resulted in confusing error
10618 messages since the error codes are not globally unique
10619 (e.g. an alleged error in ssl3_accept when a certificate
10620 didn't match the private key).
10622 *) New function SSL_CTX_set_session_id_context that allows to set a default
10623 value (so that you don't need SSL_set_session_id_context for each
10624 connection using the SSL_CTX).
10627 *) OAEP decoding bug fix.
10630 *) Support INSTALL_PREFIX for package builders, as proposed by
10634 *) New Configure options "threads" and "no-threads". For systems
10635 where the proper compiler options are known (currently Solaris
10636 and Linux), "threads" is the default.
10639 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
10642 *) Install various scripts to $(OPENSSLDIR)/misc, not to
10643 $(INSTALLTOP)/bin -- they shouldn't clutter directories
10644 such as /usr/local/bin.
10647 *) "make linux-shared" to build shared libraries.
10648 [Niels Poppe <niels@netbox.org>]
10650 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
10653 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
10654 extension adding in x509 utility.
10657 *) Remove NOPROTO sections and error code comments.
10660 *) Partial rewrite of the DEF file generator to now parse the ANSI
10664 *) New Configure options --prefix=DIR and --openssldir=DIR.
10667 *) Complete rewrite of the error code script(s). It is all now handled
10668 by one script at the top level which handles error code gathering,
10669 header rewriting and C source file generation. It should be much better
10670 than the old method: it now uses a modified version of Ulf's parser to
10671 read the ANSI prototypes in all header files (thus the old K&R definitions
10672 aren't needed for error creation any more) and do a better job of
10673 translating function codes into names. The old 'ASN1 error code imbedded
10674 in a comment' is no longer necessary and it doesn't use .err files which
10675 have now been deleted. Also the error code call doesn't have to appear all
10676 on one line (which resulted in some large lines...).
10679 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
10682 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
10683 0 (which usually indicates a closed connection), but continue reading.
10686 *) Fix some race conditions.
10689 *) Add support for CRL distribution points extension. Add Certificate
10690 Policies and CRL distribution points documentation.
10693 *) Move the autogenerated header file parts to crypto/opensslconf.h.
10696 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
10697 8 of keying material. Merlin has also confirmed interop with this fix
10698 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
10699 [Merlin Hughes <merlin@baltimore.ie>]
10701 *) Fix lots of warnings.
10702 [Richard Levitte <levitte@stacken.kth.se>]
10704 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
10705 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
10706 [Richard Levitte <levitte@stacken.kth.se>]
10708 *) Fix problems with sizeof(long) == 8.
10709 [Andy Polyakov <appro@fy.chalmers.se>]
10711 *) Change functions to ANSI C.
10714 *) Fix typos in error codes.
10715 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
10717 *) Remove defunct assembler files from Configure.
10720 *) SPARC v8 assembler BIGNUM implementation.
10721 [Andy Polyakov <appro@fy.chalmers.se>]
10723 *) Support for Certificate Policies extension: both print and set.
10724 Various additions to support the r2i method this uses.
10727 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
10728 return a const string when you are expecting an allocated buffer.
10731 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
10732 types DirectoryString and DisplayText.
10735 *) Add code to allow r2i extensions to access the configuration database,
10736 add an LHASH database driver and add several ctx helper functions.
10739 *) Fix an evil bug in bn_expand2() which caused various BN functions to
10740 fail when they extended the size of a BIGNUM.
10743 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
10744 support typesafe stack.
10747 *) Fix typo in SSL_[gs]et_options().
10748 [Nils Frostberg <nils@medcom.se>]
10750 *) Delete various functions and files that belonged to the (now obsolete)
10751 old X509V3 handling code.
10754 *) New Configure option "rsaref".
10757 *) Don't auto-generate pem.h.
10760 *) Introduce type-safe ASN.1 SETs.
10763 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
10764 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
10766 *) Introduce type-safe STACKs. This will almost certainly break lots of code
10767 that links with OpenSSL (well at least cause lots of warnings), but fear
10768 not: the conversion is trivial, and it eliminates loads of evil casts. A
10769 few STACKed things have been converted already. Feel free to convert more.
10770 In the fullness of time, I'll do away with the STACK type altogether.
10773 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
10774 specified in <certfile> by updating the entry in the index.txt file.
10775 This way one no longer has to edit the index.txt file manually for
10776 revoking a certificate. The -revoke option does the gory details now.
10777 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
10779 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
10780 `-text' option at all and this way the `-noout -text' combination was
10781 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
10782 [Ralf S. Engelschall]
10784 *) Make sure a corresponding plain text error message exists for the
10785 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
10786 verify callback function determined that a certificate was revoked.
10787 [Ralf S. Engelschall]
10789 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
10790 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
10791 all available cipers including rc5, which was forgotten until now.
10792 In order to let the testing shell script know which algorithms
10793 are available, a new (up to now undocumented) command
10794 "openssl list-cipher-commands" is used.
10797 *) Bugfix: s_client occasionally would sleep in select() when
10798 it should have checked SSL_pending() first.
10801 *) New functions DSA_do_sign and DSA_do_verify to provide access to
10802 the raw DSA values prior to ASN.1 encoding.
10805 *) Tweaks to Configure
10806 [Niels Poppe <niels@netbox.org>]
10808 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
10812 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
10815 *) New config option to avoid instructions that are illegal on the 80386.
10816 The default code is faster, but requires at least a 486.
10819 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
10820 SSL2_SERVER_VERSION (not used at all) macros, which are now the
10821 same as SSL2_VERSION anyway.
10824 *) New "-showcerts" option for s_client.
10827 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
10828 application. Various cleanups and fixes.
10831 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
10832 modify error routines to work internally. Add error codes and PBE init
10833 to library startup routines.
10836 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
10837 packing functions to asn1 and evp. Changed function names and error
10838 codes along the way.
10841 *) PKCS12 integration: and so it begins... First of several patches to
10842 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
10843 objects to objects.h
10846 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
10847 and display support for Thawte strong extranet extension.
10850 *) Add LinuxPPC support.
10851 [Jeff Dubrule <igor@pobox.org>]
10853 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
10854 bn_div_words in alpha.s.
10855 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
10857 *) Make sure the RSA OAEP test is skipped under -DRSAref because
10858 OAEP isn't supported when OpenSSL is built with RSAref.
10859 [Ulf Moeller <ulf@fitug.de>]
10861 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
10862 so they no longer are missing under -DNOPROTO.
10863 [Soren S. Jorvang <soren@t.dk>]
10866 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
10868 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
10869 doesn't work when the session is reused. Coming soon!
10872 *) Fix a security hole, that allows sessions to be reused in the wrong
10873 context thus bypassing client cert protection! All software that uses
10874 client certs and session caches in multiple contexts NEEDS PATCHING to
10875 allow session reuse! A fuller solution is in the works.
10876 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
10878 *) Some more source tree cleanups (removed obsolete files
10879 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
10880 permission on "config" script to be executable) and a fix for the INSTALL
10882 [Ulf Moeller <ulf@fitug.de>]
10884 *) Remove some legacy and erroneous uses of malloc, free instead of
10886 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
10888 *) Make rsa_oaep_test return non-zero on error.
10889 [Ulf Moeller <ulf@fitug.de>]
10891 *) Add support for native Solaris shared libraries. Configure
10892 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
10893 if someone would make that last step automatic.
10894 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
10896 *) ctx_size was not built with the right compiler during "make links". Fixed.
10899 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
10900 except NULL ciphers". This means the default cipher list will no longer
10901 enable NULL ciphers. They need to be specifically enabled e.g. with
10902 the string "DEFAULT:eNULL".
10905 *) Fix to RSA private encryption routines: if p < q then it would
10906 occasionally produce an invalid result. This will only happen with
10907 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
10910 *) Be less restrictive and allow also `perl util/perlpath.pl
10911 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
10912 because this way one can also use an interpreter named `perl5' (which is
10913 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
10914 installed as `perl').
10915 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
10917 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
10918 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
10920 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
10921 advapi32.lib to Win32 build and change the pem test comparison
10922 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
10923 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
10924 and crypto/des/ede_cbcm_enc.c.
10927 *) DES quad checksum was broken on big-endian architectures. Fixed.
10930 *) Comment out two functions in bio.h that aren't implemented. Fix up the
10931 Win32 test batch file so it (might) work again. The Win32 test batch file
10932 is horrible: I feel ill....
10935 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
10936 in e_os.h. Audit of header files to check ANSI and non ANSI
10937 sections: 10 functions were absent from non ANSI section and not exported
10938 from Windows DLLs. Fixed up libeay.num for new functions.
10941 *) Make `openssl version' output lines consistent.
10942 [Ralf S. Engelschall]
10944 *) Fix Win32 symbol export lists for BIO functions: Added
10945 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
10946 to ms/libeay{16,32}.def.
10947 [Ralf S. Engelschall]
10949 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
10950 fine under Unix and passes some trivial tests I've now added. But the
10951 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
10952 added to make sure no one expects that this stuff really works in the
10953 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
10954 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
10956 [Ralf S. Engelschall]
10958 *) Fix the generation of two part addresses in perl.
10959 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
10961 *) Add config entry for Linux on MIPS.
10962 [John Tobey <jtobey@channel1.com>]
10964 *) Make links whenever Configure is run, unless we are on Windoze.
10967 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
10968 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
10972 *) Add a useful kludge to allow package maintainers to specify compiler and
10973 other platforms details on the command line without having to patch the
10974 Configure script everytime: One now can use ``perl Configure
10975 <id>:<details>'', i.e. platform ids are allowed to have details appended
10976 to them (separated by colons). This is treated as there would be a static
10977 pre-configured entry in Configure's %table under key <id> with value
10978 <details> and ``perl Configure <id>'' is called. So, when you want to
10979 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
10980 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
10981 now, which overrides the FreeBSD-elf entry on-the-fly.
10982 [Ralf S. Engelschall]
10984 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
10987 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
10988 on the `perl Configure ...' command line. This way one can compile
10989 OpenSSL libraries with Position Independent Code (PIC) which is needed
10990 for linking it into DSOs.
10991 [Ralf S. Engelschall]
10993 *) Remarkably, export ciphers were totally broken and no-one had noticed!
10997 *) Cleaned up the LICENSE document: The official contact for any license
10998 questions now is the OpenSSL core team under openssl-core@openssl.org.
10999 And add a paragraph about the dual-license situation to make sure people
11000 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
11001 to the OpenSSL toolkit.
11002 [Ralf S. Engelschall]
11004 *) General source tree makefile cleanups: Made `making xxx in yyy...'
11005 display consistent in the source tree and replaced `/bin/rm' by `rm'.
11006 Additionally cleaned up the `make links' target: Remove unnecessary
11007 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
11008 to speed processing and no longer clutter the display with confusing
11009 stuff. Instead only the actually done links are displayed.
11010 [Ralf S. Engelschall]
11012 *) Permit null encryption ciphersuites, used for authentication only. It used
11013 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
11014 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
11018 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
11019 signed attributes when verifying signatures (this would break them),
11020 the detached data encoding was wrong and public keys obtained using
11021 X509_get_pubkey() weren't freed.
11024 *) Add text documentation for the BUFFER functions. Also added a work around
11025 to a Win95 console bug. This was triggered by the password read stuff: the
11026 last character typed gets carried over to the next fread(). If you were
11027 generating a new cert request using 'req' for example then the last
11028 character of the passphrase would be CR which would then enter the first
11032 *) Added the new `Includes OpenSSL Cryptography Software' button as
11033 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
11034 button and can be used by applications based on OpenSSL to show the
11035 relationship to the OpenSSL project.
11036 [Ralf S. Engelschall]
11038 *) Remove confusing variables in function signatures in files
11039 ssl/ssl_lib.c and ssl/ssl.h.
11040 [Lennart Bong <lob@kulthea.stacken.kth.se>]
11042 *) Don't install bss_file.c under PREFIX/include/
11043 [Lennart Bong <lob@kulthea.stacken.kth.se>]
11045 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
11046 functions that return function pointers and has support for NT specific
11047 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
11048 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
11049 unsigned to signed types: this was killing the Win32 compile.
11052 *) Add new certificate file to stack functions,
11053 SSL_add_dir_cert_subjects_to_stack() and
11054 SSL_add_file_cert_subjects_to_stack(). These largely supplant
11055 SSL_load_client_CA_file(), and can be used to add multiple certs easily
11056 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
11057 This means that Apache-SSL and similar packages don't have to mess around
11058 to add as many CAs as they want to the preferred list.
11061 *) Experiment with doxygen documentation. Currently only partially applied to
11063 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
11064 openssl.doxy as the configuration file.
11067 *) Get rid of remaining C++-style comments which strict C compilers hate.
11068 [Ralf S. Engelschall, pointed out by Carlos Amengual]
11070 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
11071 compiled in by default: it has problems with large keys.
11074 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
11075 DH private keys and/or callback functions which directly correspond to
11076 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
11077 is needed for applications which have to configure certificates on a
11078 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
11080 For the RSA certificate situation is makes no difference, but
11081 for the DSA certificate situation this fixes the "no shared cipher"
11082 problem where the OpenSSL cipher selection procedure failed because the
11083 temporary keys were not overtaken from the context and the API provided
11084 no way to reconfigure them.
11085 The new functions now let applications reconfigure the stuff and they
11086 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
11087 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
11088 non-public-API function ssl_cert_instantiate() is used as a helper
11089 function and also to reduce code redundancy inside ssl_rsa.c.
11090 [Ralf S. Engelschall]
11092 *) Move s_server -dcert and -dkey options out of the undocumented feature
11093 area because they are useful for the DSA situation and should be
11094 recognized by the users.
11095 [Ralf S. Engelschall]
11097 *) Fix the cipher decision scheme for export ciphers: the export bits are
11098 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
11099 SSL_EXP_MASK. So, the original variable has to be used instead of the
11100 already masked variable.
11101 [Richard Levitte <levitte@stacken.kth.se>]
11103 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
11104 [Richard Levitte <levitte@stacken.kth.se>]
11106 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
11107 from `int' to `unsigned int' because it's a length and initialized by
11108 EVP_DigestFinal() which expects an `unsigned int *'.
11109 [Richard Levitte <levitte@stacken.kth.se>]
11111 *) Don't hard-code path to Perl interpreter on shebang line of Configure
11112 script. Instead use the usual Shell->Perl transition trick.
11113 [Ralf S. Engelschall]
11115 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
11116 (in addition to RSA certificates) to match the behaviour of `openssl dsa
11117 -noout -modulus' as it's already the case for `openssl rsa -noout
11118 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
11119 currently the public key is printed (a decision which was already done by
11120 `openssl dsa -modulus' in the past) which serves a similar purpose.
11121 Additionally the NO_RSA no longer completely removes the whole -modulus
11122 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
11124 [Ralf S. Engelschall]
11126 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
11127 BIO. See the source (crypto/evp/bio_ok.c) for more info.
11128 [Arne Ansper <arne@ats.cyber.ee>]
11130 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
11131 to be added. Now both 'req' and 'ca' can use new objects defined in the
11135 *) Add cool BIO that does syslog (or event log on NT).
11136 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
11138 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
11139 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
11140 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
11141 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
11144 *) Add preliminary config info for new extension code.
11147 *) Make RSA_NO_PADDING really use no padding.
11148 [Ulf Moeller <ulf@fitug.de>]
11150 *) Generate errors when private/public key check is done.
11153 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
11154 for some CRL extensions and new objects added.
11157 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
11158 key usage extension and fuller support for authority key id.
11161 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
11162 padding method for RSA, which is recommended for new applications in PKCS
11163 #1 v2.0 (RFC 2437, October 1998).
11164 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
11165 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
11166 against Bleichbacher's attack on RSA.
11167 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
11170 *) Updates to the new SSL compression code
11171 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
11173 *) Fix so that the version number in the master secret, when passed
11174 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
11175 (because the server will not accept higher), that the version number
11176 is 0x03,0x01, not 0x03,0x00
11177 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
11179 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
11180 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
11181 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
11184 *) Support for RAW extensions where an arbitrary extension can be
11185 created by including its DER encoding. See apps/openssl.cnf for
11189 *) Make sure latest Perl versions don't interpret some generated C array
11190 code as Perl array code in the crypto/err/err_genc.pl script.
11191 [Lars Weber <3weber@informatik.uni-hamburg.de>]
11193 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
11194 not many people have the assembler. Various Win32 compilation fixes and
11195 update to the INSTALL.W32 file with (hopefully) more accurate Win32
11196 build instructions.
11199 *) Modify configure script 'Configure' to automatically create crypto/date.h
11200 file under Win32 and also build pem.h from pem.org. New script
11201 util/mkfiles.pl to create the MINFO file on environments that can't do a
11202 'make files': perl util/mkfiles.pl >MINFO should work.
11205 *) Major rework of DES function declarations, in the pursuit of correctness
11206 and purity. As a result, many evil casts evaporated, and some weirdness,
11207 too. You may find this causes warnings in your code. Zapping your evil
11208 casts will probably fix them. Mostly.
11211 *) Fix for a typo in asn1.h. Bug fix to object creation script
11212 obj_dat.pl. It considered a zero in an object definition to mean
11213 "end of object": none of the objects in objects.h have any zeros
11214 so it wasn't spotted.
11215 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
11217 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
11218 Masking (CBCM). In the absence of test vectors, the best I have been able
11219 to do is check that the decrypt undoes the encrypt, so far. Send me test
11220 vectors if you have them.
11223 *) Correct calculation of key length for export ciphers (too much space was
11224 allocated for null ciphers). This has not been tested!
11227 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
11228 message is now correct (it understands "crypto" and "ssl" on its
11229 command line). There is also now an "update" option. This will update
11230 the util/ssleay.num and util/libeay.num files with any new functions.
11232 perl util/mkdef.pl crypto ssl update
11233 it will update them.
11236 *) Overhauled the Perl interface (perl/*):
11237 - ported BN stuff to OpenSSL's different BN library
11238 - made the perl/ source tree CVS-aware
11239 - renamed the package from SSLeay to OpenSSL (the files still contain
11240 their history because I've copied them in the repository)
11241 - removed obsolete files (the test scripts will be replaced
11242 by better Test::Harness variants in the future)
11243 [Ralf S. Engelschall]
11245 *) First cut for a very conservative source tree cleanup:
11246 1. merge various obsolete readme texts into doc/ssleay.txt
11247 where we collect the old documents and readme texts.
11248 2. remove the first part of files where I'm already sure that we no
11249 longer need them because of three reasons: either they are just temporary
11250 files which were left by Eric or they are preserved original files where
11251 I've verified that the diff is also available in the CVS via "cvs diff
11252 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
11253 the crypto/md/ stuff).
11254 [Ralf S. Engelschall]
11256 *) More extension code. Incomplete support for subject and issuer alt
11257 name, issuer and authority key id. Change the i2v function parameters
11258 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
11259 what that's for :-) Fix to ASN1 macro which messed up
11260 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
11263 *) Preliminary support for ENUMERATED type. This is largely copied from the
11267 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
11268 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
11270 *) Make sure `make rehash' target really finds the `openssl' program.
11271 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
11273 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
11274 like to hear about it if this slows down other processors.
11277 *) Add CygWin32 platform information to Configure script.
11278 [Alan Batie <batie@aahz.jf.intel.com>]
11280 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
11281 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
11283 *) New program nseq to manipulate netscape certificate sequences
11286 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
11290 *) Fixes to BN code. Previously the default was to define BN_RECURSION
11291 but the BN code had some problems that would cause failures when
11292 doing certificate verification and some other functions.
11293 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
11295 *) Add ASN1 and PEM code to support netscape certificate sequences.
11298 *) Add ASN1 and PEM code to support netscape certificate sequences.
11301 *) Add several PKIX and private extended key usage OIDs.
11304 *) Modify the 'ca' program to handle the new extension code. Modify
11305 openssl.cnf for new extension format, add comments.
11308 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
11309 and add a sample to openssl.cnf so req -x509 now adds appropriate
11313 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
11314 error code, add initial support to X509_print() and x509 application.
11317 *) Takes a deep breath and start adding X509 V3 extension support code. Add
11318 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
11319 stuff is currently isolated and isn't even compiled yet.
11322 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
11323 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
11324 Removed the versions check from X509 routines when loading extensions:
11325 this allows certain broken certificates that don't set the version
11326 properly to be processed.
11329 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
11330 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
11331 can still be regenerated with "make depend".
11334 *) Spelling mistake in C version of CAST-128.
11335 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
11337 *) Changes to the error generation code. The perl script err-code.pl
11338 now reads in the old error codes and retains the old numbers, only
11339 adding new ones if necessary. It also only changes the .err files if new
11340 codes are added. The makefiles have been modified to only insert errors
11341 when needed (to avoid needlessly modifying header files). This is done
11342 by only inserting errors if the .err file is newer than the auto generated
11343 C file. To rebuild all the error codes from scratch (the old behaviour)
11344 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
11345 or delete all the .err files.
11348 *) CAST-128 was incorrectly implemented for short keys. The C version has
11349 been fixed, but is untested. The assembler versions are also fixed, but
11350 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
11351 to regenerate it if needed.
11352 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
11353 Hagino <itojun@kame.net>]
11355 *) File was opened incorrectly in randfile.c.
11356 [Ulf Möller <ulf@fitug.de>]
11358 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
11359 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
11360 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
11361 al: it's just almost always a UTCTime. Note this patch adds new error
11362 codes so do a "make errors" if there are problems.
11365 *) Correct Linux 1 recognition in config.
11366 [Ulf Möller <ulf@fitug.de>]
11368 *) Remove pointless MD5 hash when using DSA keys in ca.
11369 [Anonymous <nobody@replay.com>]
11371 *) Generate an error if given an empty string as a cert directory. Also
11372 generate an error if handed NULL (previously returned 0 to indicate an
11373 error, but didn't set one).
11374 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
11376 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
11379 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
11380 parameters. This was causing a warning which killed off the Win32 compile.
11383 *) Remove C++ style comments from crypto/bn/bn_local.h.
11384 [Neil Costigan <neil.costigan@celocom.com>]
11386 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
11387 based on a text string, looking up short and long names and finally
11388 "dot" format. The "dot" format stuff didn't work. Added new function
11389 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
11390 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
11391 OID is not part of the table.
11394 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
11395 X509_LOOKUP_by_alias().
11398 *) Sort openssl functions by name.
11401 *) Get the gendsa program working (hopefully) and add it to app list. Remove
11402 encryption from sample DSA keys (in case anyone is interested the password
11406 *) Make _all_ *_free functions accept a NULL pointer.
11407 [Frans Heymans <fheymans@isaserver.be>]
11409 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
11411 [Anonymous <nobody@replay.com>]
11413 *) s_server should send the CAfile as acceptable CAs, not its own cert.
11414 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
11416 *) Don't blow it for numeric -newkey arguments to apps/req.
11417 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
11419 *) Temp key "for export" tests were wrong in s3_srvr.c.
11420 [Anonymous <nobody@replay.com>]
11422 *) Add prototype for temp key callback functions
11423 SSL_CTX_set_tmp_{rsa,dh}_callback().
11426 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
11427 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
11430 *) X509_name_add_entry() freed the wrong thing after an error.
11431 [Arne Ansper <arne@ats.cyber.ee>]
11433 *) rsa_eay.c would attempt to free a NULL context.
11434 [Arne Ansper <arne@ats.cyber.ee>]
11436 *) BIO_s_socket() had a broken should_retry() on Windoze.
11437 [Arne Ansper <arne@ats.cyber.ee>]
11439 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
11440 [Arne Ansper <arne@ats.cyber.ee>]
11442 *) Make sure the already existing X509_STORE->depth variable is initialized
11443 in X509_STORE_new(), but document the fact that this variable is still
11444 unused in the certificate verification process.
11445 [Ralf S. Engelschall]
11447 *) Fix the various library and apps files to free up pkeys obtained from
11448 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
11451 *) Fix reference counting in X509_PUBKEY_get(). This makes
11452 demos/maurice/example2.c work, amongst others, probably.
11453 [Steve Henson and Ben Laurie]
11455 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
11456 `openssl' and second, the shortcut symlinks for the `openssl <command>'
11457 are no longer created. This way we have a single and consistent command
11458 line interface `openssl <command>', similar to `cvs <command>'.
11459 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
11461 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
11462 BIT STRING wrapper always have zero unused bits.
11465 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
11468 *) Make the top-level INSTALL documentation easier to understand.
11471 *) Makefiles updated to exit if an error occurs in a sub-directory
11472 make (including if user presses ^C) [Paul Sutton]
11474 *) Make Montgomery context stuff explicit in RSA data structure.
11477 *) Fix build order of pem and err to allow for generated pem.h.
11480 *) Fix renumbering bug in X509_NAME_delete_entry().
11483 *) Enhanced the err-ins.pl script so it makes the error library number
11484 global and can add a library name. This is needed for external ASN1 and
11485 other error libraries.
11488 *) Fixed sk_insert which never worked properly.
11491 *) Fix ASN1 macros so they can handle indefinite length constructed
11492 EXPLICIT tags. Some non standard certificates use these: they can now
11496 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
11497 into a single doc/ssleay.txt bundle. This way the information is still
11498 preserved but no longer messes up this directory. Now it's new room for
11499 the new set of documentation files.
11500 [Ralf S. Engelschall]
11502 *) SETs were incorrectly DER encoded. This was a major pain, because they
11503 shared code with SEQUENCEs, which aren't coded the same. This means that
11504 almost everything to do with SETs or SEQUENCEs has either changed name or
11505 number of arguments.
11506 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
11508 *) Fix test data to work with the above.
11511 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
11512 was already fixed by Eric for 0.9.1 it seems.
11513 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
11515 *) Autodetect FreeBSD3.
11518 *) Fix various bugs in Configure. This affects the following platforms:
11522 unixware-2.0-pentium
11526 *) Eliminate generated files from CVS. Reorder tests to regenerate files
11527 before they are needed.
11530 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
11534 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
11536 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
11537 changed SSLeay to OpenSSL in version strings.
11538 [Ralf S. Engelschall]
11540 *) Some fixups to the top-level documents.
11543 *) Fixed the nasty bug where rsaref.h was not found under compile-time
11544 because the symlink to include/ was missing.
11545 [Ralf S. Engelschall]
11547 *) Incorporated the popular no-RSA/DSA-only patches
11548 which allow to compile a RSA-free SSLeay.
11549 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
11551 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
11552 when "ssleay" is still not found.
11553 [Ralf S. Engelschall]
11555 *) Added more platforms to Configure: Cray T3E, HPUX 11,
11556 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
11558 *) Updated the README file.
11559 [Ralf S. Engelschall]
11561 *) Added various .cvsignore files in the CVS repository subdirs
11562 to make a "cvs update" really silent.
11563 [Ralf S. Engelschall]
11565 *) Recompiled the error-definition header files and added
11566 missing symbols to the Win32 linker tables.
11567 [Ralf S. Engelschall]
11569 *) Cleaned up the top-level documents;
11570 o new files: CHANGES and LICENSE
11571 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
11572 o merged COPYRIGHT into LICENSE
11573 o removed obsolete TODO file
11574 o renamed MICROSOFT to INSTALL.W32
11575 [Ralf S. Engelschall]
11577 *) Removed dummy files from the 0.9.1b source tree:
11578 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
11579 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
11580 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
11581 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
11582 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
11583 [Ralf S. Engelschall]
11585 *) Added various platform portability fixes.
11588 *) The Genesis of the OpenSSL rpject:
11589 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
11590 Young and Tim J. Hudson created while they were working for C2Net until
11592 [The OpenSSL Project]
11595 Changes between 0.9.0b and 0.9.1b [not released]
11597 *) Updated a few CA certificates under certs/
11600 *) Changed some BIGNUM api stuff.
11603 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
11604 DGUX x86, Linux Alpha, etc.
11607 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
11608 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
11612 *) Add -strparse option to asn1pars program which parses nested
11614 [Dr Stephen Henson <shenson@bigfoot.com>]
11616 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
11619 *) DSA fix for "ca" program.
11622 *) Added "-genkey" option to "dsaparam" program.
11625 *) Added RIPE MD160 (rmd160) message digest.
11628 *) Added -a (all) option to "ssleay version" command.
11631 *) Added PLATFORM define which is the id given to Configure.
11634 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
11637 *) Extended the ASN.1 parser routines.
11640 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
11643 *) Added a BN_CTX to the BN library.
11646 *) Fixed the weak key values in DES library
11649 *) Changed API in EVP library for cipher aliases.
11652 *) Added support for RC2/64bit cipher.
11655 *) Converted the lhash library to the crypto/mem.c functions.
11658 *) Added more recognized ASN.1 object ids.
11661 *) Added more RSA padding checks for SSL/TLS.
11664 *) Added BIO proxy/filter functionality.
11667 *) Added extra_certs to SSL_CTX which can be used
11668 send extra CA certificates to the client in the CA cert chain sending
11669 process. It can be configured with SSL_CTX_add_extra_chain_cert().
11672 *) Now Fortezza is denied in the authentication phase because
11673 this is key exchange mechanism is not supported by SSLeay at all.
11676 *) Additional PKCS1 checks.
11679 *) Support the string "TLSv1" for all TLS v1 ciphers.
11682 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
11683 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
11686 *) Fixed a few memory leaks.
11689 *) Fixed various code and comment typos.
11692 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
11693 bytes sent in the client random.
11694 [Edward Bishop <ebishop@spyglass.com>]