5 Changes between 1.0.2f and 1.1.0 [xx XXX xxxx]
8 Integrate support for X25519 into EC library. This includes support
9 for public and private key encoding using the format documented in
10 draft-josefsson-pkix-newcurves-01: specifically X25519 uses the
11 OID from that draft, encodes public keys using little endian
12 format in the ECPoint structure and private keys using
13 little endian form in the privateKey field of the ECPrivateKey
14 structure. TLS support complies with draft-ietf-tls-rfc4492bis-06
17 Note: the current version supports key generation, public and
18 private key encoding and ECDH key agreement using the EC API.
19 Low level point operations such as EC_POINT_add(), EC_POINT_mul()
23 *) Deprecate SRP_VBASE_get_by_user.
24 SRP_VBASE_get_by_user had inconsistent memory management behaviour.
25 In order to fix an unavoidable memory leak (CVE-2016-0798),
26 SRP_VBASE_get_by_user was changed to ignore the "fake user" SRP
27 seed, even if the seed is configured.
29 Users should use SRP_VBASE_get1_by_user instead. Note that in
30 SRP_VBASE_get1_by_user, caller must free the returned value. Note
31 also that even though configuring the SRP seed attempts to hide
32 invalid usernames by continuing the handshake with fake
33 credentials, this behaviour is not constant time and no strong
34 guarantees are made that the handshake is indistinguishable from
38 *) Configuration change; it's now possible to build dynamic engines
39 without having to build shared libraries and vice versa. This
40 only applies to the engines in engines/, those in crypto/engine/
41 will always be built into libcrypto (i.e. "static").
43 Building dynamic engines is enabled by default; to disable, use
44 the configuration option "disable-dynamic-engine".
46 The only requirements for building dynamic engines are the
47 presence of the DSO module and building with position independent
48 code, so they will also automatically be disabled if configuring
49 with "disable-dso" or "disable-pic".
51 The macros OPENSSL_NO_STATIC_ENGINE and OPENSSL_NO_DYNAMIC_ENGINE
52 are also taken away from openssl/opensslconf.h, as they are
56 *) Configuration change; if there is a known flag to compile
57 position independent code, it will always be applied on the
58 libcrypto and libssl object files, and never on the application
59 object files. This means other libraries that use routines from
60 libcrypto / libssl can be made into shared libraries regardless
61 of how OpenSSL was configured.
63 If this isn't desirable, the configuration options "disable-pic"
64 or "no-pic" can be used to disable the use of PIC. This will
65 also disable building shared libraries and dynamic engines.
68 *) Removed JPAKE code. It was experimental and has no wide use.
71 *) The INSTALL_PREFIX Makefile variable has been renamed to
72 DESTDIR. That makes for less confusion on what this variable
73 is for. Also, the configuration option --install_prefix is
77 *) Heartbeat for TLS has been removed and is disabled by default
78 for DTLS; configure with enable-heartbeats. Code that uses the
79 old #define's might need to be updated.
80 [Emilia Käsper, Rich Salz]
82 *) Rename REF_CHECK to REF_DEBUG.
85 *) New "unified" build system
87 The "unified" build system is aimed to be a common system for all
88 platforms we support. With it comes new support for VMS.
90 This system builds supports building in a different directory tree
91 than the source tree. It produces one Makefile (for unix family
92 or lookalikes), or one descrip.mms (for VMS).
94 The source of information to make the Makefile / descrip.mms is
95 small files called 'build.info', holding the necessary
96 information for each directory with source to compile, and a
97 template in Configurations, like unix-Makefile.tmpl or
100 We rely heavily on the perl module Text::Template.
103 *) Added support for auto-initialisation and de-initialisation of the library.
104 OpenSSL no longer requires explicit init or deinit routines to be called,
105 except in certain circumstances. See the OPENSSL_init_crypto() and
106 OPENSSL_init_ssl() man pages for further information.
109 *) The arguments to the DTLSv1_listen function have changed. Specifically the
110 "peer" argument is now expected to be a BIO_ADDR object.
112 *) Rewrite of BIO networking library. The BIO library lacked consistent
113 support of IPv6, and adding it required some more extensive
114 modifications. This introduces the BIO_ADDR and BIO_ADDRINFO types,
115 which hold all types of addresses and chains of address information.
116 It also introduces a new API, with functions like BIO_socket,
117 BIO_connect, BIO_listen, BIO_lookup and a rewrite of BIO_accept.
118 The source/sink BIOs BIO_s_connect, BIO_s_accept and BIO_s_datagram
119 have been adapted accordingly.
122 *) RSA_padding_check_PKCS1_type_1 now accepts inputs with and without
126 *) CRIME protection: disable compression by default, even if OpenSSL is
127 compiled with zlib enabled. Applications can still enable compression
128 by calling SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION), or by
129 using the SSL_CONF library to configure compression.
132 *) The signature of the session callback configured with
133 SSL_CTX_sess_set_get_cb was changed. The read-only input buffer
134 was explicitly marked as 'const unsigned char*' instead of
138 *) Always DPURIFY. Remove the use of uninitialized memory in the
139 RNG, and other conditional uses of DPURIFY. This makes -DPURIFY a no-op.
142 *) Removed many obsolete configuration items, including
143 DES_PTR, DES_RISC1, DES_RISC2, DES_INT
144 MD2_CHAR, MD2_INT, MD2_LONG
146 IDEA_SHORT, IDEA_LONG
147 RC2_SHORT, RC2_LONG, RC4_LONG, RC4_CHUNK, RC4_INDEX
148 [Rich Salz, with advice from Andy Polyakov]
150 *) Many BN internals have been moved to an internal header file.
151 [Rich Salz with help from Andy Polyakov]
153 *) Configuration and writing out the results from it has changed.
154 Files such as Makefile include/openssl/opensslconf.h and are now
155 produced through general templates, such as Makefile.in and
156 crypto/opensslconf.h.in and some help from the perl module
159 Also, the center of configuration information is no longer
160 Makefile. Instead, Configure produces a perl module in
161 configdata.pm which holds most of the config data (in the hash
162 table %config), the target data that comes from the target
163 configuration in one of the Configurations/*.conf files (in
167 *) To clarify their intended purposes, the Configure options
168 --prefix and --openssldir change their semantics, and become more
169 straightforward and less interdependent.
171 --prefix shall be used exclusively to give the location INSTALLTOP
172 where programs, scripts, libraries, include files and manuals are
173 going to be installed. The default is now /usr/local.
175 --openssldir shall be used exclusively to give the default
176 location OPENSSLDIR where certificates, private keys, CRLs are
177 managed. This is also where the default openssl.cnf gets
179 If the directory given with this option is a relative path, the
180 values of both the --prefix value and the --openssldir value will
181 be combined to become OPENSSLDIR.
182 The default for --openssldir is INSTALLTOP/ssl.
184 Anyone who uses --openssldir to specify where OpenSSL is to be
185 installed MUST change to use --prefix instead.
188 *) The GOST engine was out of date and therefore it has been removed. An up
189 to date GOST engine is now being maintained in an external repository.
190 See: https://wiki.openssl.org/index.php/Binaries. Libssl still retains
191 support for GOST ciphersuites (these are only activated if a GOST engine
195 *) EGD is no longer supported by default; use enable-egd when
197 [Ben Kaduk and Rich Salz]
199 *) The distribution now has Makefile.in files, which are used to
200 create Makefile's when Configure is run. *Configure must be run
201 before trying to build now.*
204 *) The return value for SSL_CIPHER_description() for error conditions
208 *) Support for RFC6698/RFC7671 DANE TLSA peer authentication.
210 Obtaining and performing DNSSEC validation of TLSA records is
211 the application's responsibility. The application provides
212 the TLSA records of its choice to OpenSSL, and these are then
213 used to authenticate the peer.
215 The TLSA records need not even come from DNS. They can, for
216 example, be used to implement local end-entity certificate or
217 trust-anchor "pinning", where the "pin" data takes the form
218 of TLSA records, which can augment or replace verification
219 based on the usual WebPKI public certification authorities.
222 *) Revert default OPENSSL_NO_DEPRECATED setting. Instead OpenSSL
223 continues to support deprecated interfaces in default builds.
224 However, applications are strongly advised to compile their
225 source files with -DOPENSSL_API_COMPAT=0x10100000L, which hides
226 the declarations of all interfaces deprecated in 0.9.8, 1.0.0
227 or the 1.1.0 releases.
229 In environments in which all applications have been ported to
230 not use any deprecated interfaces OpenSSL's Configure script
231 should be used with the --api=1.1.0 option to entirely remove
232 support for the deprecated features from the library and
233 unconditionally disable them in the installed headers.
234 Essentially the same effect can be achieved with the "no-deprecated"
235 argument to Configure, except that this will always restrict
236 the build to just the latest API, rather than a fixed API
239 As applications are ported to future revisions of the API,
240 they should update their compile-time OPENSSL_API_COMPAT define
241 accordingly, but in most cases should be able to continue to
242 compile with later releases.
244 The OPENSSL_API_COMPAT versions for 1.0.0, and 0.9.8 are
245 0x10000000L and 0x00908000L, respectively. However those
246 versions did not support the OPENSSL_API_COMPAT feature, and
247 so applications are not typically tested for explicit support
248 of just the undeprecated features of either release.
251 *) Add support for setting the minimum and maximum supported protocol.
252 It can bet set via the SSL_set_min_proto_version() and
253 SSL_set_max_proto_version(), or via the SSL_CONF's MinProtocol and
254 MaxProtcol. It's recommended to use the new APIs to disable
255 protocols instead of disabling individual protocols using
256 SSL_set_options() or SSL_CONF's Protocol. This change also
257 removes support for disabling TLS 1.2 in the OpenSSL TLS
258 client at compile time by defining OPENSSL_NO_TLS1_2_CLIENT.
261 *) Support for ChaCha20 and Poly1305 added to libcrypto and libssl.
264 *) New EC_KEY_METHOD, this replaces the older ECDSA_METHOD and ECDH_METHOD
265 and integrates ECDSA and ECDH functionality into EC. Implementations can
266 now redirect key generation and no longer need to convert to or from
269 Note: the ecdsa.h and ecdh.h headers are now no longer needed and just
270 include the ec.h header file instead.
273 *) Remove support for all 40 and 56 bit ciphers. This includes all the export
274 ciphers who are no longer supported and drops support the ephemeral RSA key
275 exchange. The LOW ciphers currently doesn't have any ciphers in it.
278 *) Made EVP_MD_CTX, EVP_MD, EVP_CIPHER_CTX, EVP_CIPHER and HMAC_CTX
279 opaque. For HMAC_CTX, the following constructors and destructors
282 HMAC_CTX *HMAC_CTX_new(void);
283 void HMAC_CTX_free(HMAC_CTX *ctx);
285 For EVP_MD and EVP_CIPHER, complete APIs to create, fill and
286 destroy such methods has been added. See EVP_MD_meth_new(3) and
287 EVP_CIPHER_meth_new(3) for documentation.
290 1) EVP_MD_CTX_cleanup(), EVP_CIPHER_CTX_cleanup() and
291 HMAC_CTX_cleanup() were removed. HMAC_CTX_reset() and
292 EVP_MD_CTX_reset() should be called instead to reinitialise
293 an already created structure.
294 2) For consistency with the majority of our object creators and
295 destructors, EVP_MD_CTX_(create|destroy) were renamed to
296 EVP_MD_CTX_(new|free). The old names are retained as macros
297 for deprecated builds.
300 *) Added ASYNC support. Libcrypto now includes the async sub-library to enable
301 cryptographic operations to be performed asynchronously as long as an
302 asynchronous capable engine is used. See the ASYNC_start_job() man page for
303 further details. Libssl has also had this capability integrated with the
304 introduction of the new mode SSL_MODE_ASYNC and associated error
305 SSL_ERROR_WANT_ASYNC. See the SSL_CTX_set_mode() and SSL_get_error() man
306 pages. This work was developed in partnership with Intel Corp.
309 *) SSL_{CTX_}set_ecdh_auto() has been removed and ECDH is support is
310 always enabled now. If you want to disable the support you should
311 exclude it using the list of supported ciphers. This also means that the
312 "-no_ecdhe" option has been removed from s_server.
315 *) SSL_{CTX}_set_tmp_ecdh() which can set 1 EC curve now internally calls
316 SSL_{CTX_}set1_curves() which can set a list.
319 *) Remove support for SSL_{CTX_}set_tmp_ecdh_callback(). You should set the
320 curve you want to support using SSL_{CTX_}set1_curves().
323 *) State machine rewrite. The state machine code has been significantly
324 refactored in order to remove much duplication of code and solve issues
325 with the old code (see ssl/statem/README for further details). This change
326 does have some associated API changes. Notably the SSL_state() function
327 has been removed and replaced by SSL_get_state which now returns an
328 "OSSL_HANDSHAKE_STATE" instead of an int. SSL_set_state() has been removed
329 altogether. The previous handshake states defined in ssl.h and ssl3.h have
333 *) All instances of the string "ssleay" in the public API were replaced
334 with OpenSSL (case-matching; e.g., OPENSSL_VERSION for #define's)
335 Some error codes related to internal RSA_eay API's were renamed.
338 *) The demo files in crypto/threads were moved to demo/threads.
341 *) Removed obsolete engines: 4758cca, aep, atalla, cswift, nuron, gmp,
343 [Matt Caswell, Rich Salz]
345 *) New ASN.1 embed macro.
347 New ASN.1 macro ASN1_EMBED. This is the same as ASN1_SIMPLE except the
348 structure is not allocated: it is part of the parent. That is instead of
356 This reduces memory fragmentation and make it impossible to accidentally
357 set a mandatory field to NULL.
359 This currently only works for some fields specifically a SEQUENCE, CHOICE,
360 or ASN1_STRING type which is part of a parent SEQUENCE. Since it is
361 equivalent to ASN1_SIMPLE it cannot be tagged, OPTIONAL, SET OF or
365 *) Remove EVP_CHECK_DES_KEY, a compile-time option that never compiled.
368 *) Removed DES and RC4 ciphersuites from DEFAULT. Also removed RC2 although
369 in 1.0.2 EXPORT was already removed and the only RC2 ciphersuite is also
370 an EXPORT one. COMPLEMENTOFDEFAULT has been updated accordingly to add
371 DES and RC4 ciphersuites.
374 *) Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs.
375 This changes the decoding behaviour for some invalid messages,
376 though the change is mostly in the more lenient direction, and
377 legacy behaviour is preserved as much as possible.
380 *) Fix no-stdio build.
381 [ David Woodhouse <David.Woodhouse@intel.com> and also
382 Ivan Nestlerode <ivan.nestlerode@sonos.com> ]
384 *) New testing framework
385 The testing framework has been largely rewritten and is now using
386 perl and the perl modules Test::Harness and an extended variant of
387 Test::More called OpenSSL::Test to do its work. All test scripts in
388 test/ have been rewritten into test recipes, and all direct calls to
389 executables in test/Makefile have become individual recipes using the
390 simplified testing OpenSSL::Test::Simple.
392 For documentation on our testing modules, do:
394 perldoc test/testlib/OpenSSL/Test/Simple.pm
395 perldoc test/testlib/OpenSSL/Test.pm
399 *) Revamped memory debug; only -DCRYPTO_MDEBUG and -DCRYPTO_MDEBUG_ABORT
400 are used; the latter aborts on memory leaks (usually checked on exit).
401 Some undocumented "set malloc, etc., hooks" functions were removed
402 and others were changed. All are now documented.
405 *) In DSA_generate_parameters_ex, if the provided seed is too short,
407 [Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>]
409 *) Rewrite PSK to support ECDHE_PSK, DHE_PSK and RSA_PSK. Add ciphersuites
410 from RFC4279, RFC4785, RFC5487, RFC5489.
412 Thanks to Christian J. Dietrich and Giuseppe D'Angelo for the
413 original RSA_PSK patch.
416 *) Dropped support for the SSL3_FLAGS_DELAY_CLIENT_FINISHED flag. This SSLeay
417 era flag was never set throughout the codebase (only read). Also removed
418 SSL3_FLAGS_POP_BUFFER which was only used if
419 SSL3_FLAGS_DELAY_CLIENT_FINISHED was also set.
422 *) Changed the default name options in the "ca", "crl", "req" and "x509"
423 to be "oneline" instead of "compat".
426 *) Remove SSL_OP_TLS_BLOCK_PADDING_BUG. This is SSLeay legacy, we're
427 not aware of clients that still exhibit this bug, and the workaround
428 hasn't been working properly for a while.
431 *) The return type of BIO_number_read() and BIO_number_written() as well as
432 the corresponding num_read and num_write members in the BIO structure has
433 changed from unsigned long to uint64_t. On platforms where an unsigned
434 long is 32 bits (e.g. Windows) these counters could overflow if >4Gb is
438 *) Given the pervasive nature of TLS extensions it is inadvisable to run
439 OpenSSL without support for them. It also means that maintaining
440 the OPENSSL_NO_TLSEXT option within the code is very invasive (and probably
441 not well tested). Therefore the OPENSSL_NO_TLSEXT option has been removed.
444 *) Removed support for the two export grade static DH ciphersuites
445 EXP-DH-RSA-DES-CBC-SHA and EXP-DH-DSS-DES-CBC-SHA. These two ciphersuites
446 were newly added (along with a number of other static DH ciphersuites) to
447 1.0.2. However the two export ones have *never* worked since they were
448 introduced. It seems strange in any case to be adding new export
449 ciphersuites, and given "logjam" it also does not seem correct to fix them.
452 *) Version negotiation has been rewritten. In particular SSLv23_method(),
453 SSLv23_client_method() and SSLv23_server_method() have been deprecated,
454 and turned into macros which simply call the new preferred function names
455 TLS_method(), TLS_client_method() and TLS_server_method(). All new code
456 should use the new names instead. Also as part of this change the ssl23.h
457 header file has been removed.
460 *) Support for Kerberos ciphersuites in TLS (RFC2712) has been removed. This
461 code and the associated standard is no longer considered fit-for-purpose.
464 *) RT2547 was closed. When generating a private key, try to make the
465 output file readable only by the owner. This behavior change might
466 be noticeable when interacting with other software.
468 *) Documented all exdata functions. Added CRYPTO_free_ex_index.
472 *) Added HTTP GET support to the ocsp command.
475 *) Changed default digest for the dgst and enc commands from MD5 to
479 *) RAND_pseudo_bytes has been deprecated. Users should use RAND_bytes instead.
482 *) Added support for TLS extended master secret from
483 draft-ietf-tls-session-hash-03.txt. Thanks for Alfredo Pironti for an
484 initial patch which was a great help during development.
487 *) All libssl internal structures have been removed from the public header
488 files, and the OPENSSL_NO_SSL_INTERN option has been removed (since it is
489 now redundant). Users should not attempt to access internal structures
490 directly. Instead they should use the provided API functions.
493 *) config has been changed so that by default OPENSSL_NO_DEPRECATED is used.
494 Access to deprecated functions can be re-enabled by running config with
495 "enable-deprecated". In addition applications wishing to use deprecated
496 functions must define OPENSSL_USE_DEPRECATED. Note that this new behaviour
497 will, by default, disable some transitive includes that previously existed
498 in the header files (e.g. ec.h will no longer, by default, include bn.h)
501 *) Added support for OCB mode. OpenSSL has been granted a patent license
502 compatible with the OpenSSL license for use of OCB. Details are available
503 at https://www.openssl.org/source/OCB-patent-grant-OpenSSL.pdf. Support
504 for OCB can be removed by calling config with no-ocb.
507 *) SSLv2 support has been removed. It still supports receiving a SSLv2
508 compatible client hello.
511 *) Increased the minimal RSA keysize from 256 to 512 bits [Rich Salz],
512 done while fixing the error code for the key-too-small case.
513 [Annie Yousar <a.yousar@informatik.hu-berlin.de>]
515 *) CA.sh has been removmed; use CA.pl instead.
518 *) Removed old DES API.
521 *) Remove various unsupported platforms:
527 Sinix/ReliantUNIX RM400
532 16-bit platforms such as WIN16
535 *) Clean up OPENSSL_NO_xxx #define's
536 Use setbuf() and remove OPENSSL_NO_SETVBUF_IONBF
537 Rename OPENSSL_SYSNAME_xxx to OPENSSL_SYS_xxx
538 OPENSSL_NO_EC{DH,DSA} merged into OPENSSL_NO_EC
539 OPENSSL_NO_RIPEMD160, OPENSSL_NO_RIPEMD merged into OPENSSL_NO_RMD160
540 OPENSSL_NO_FP_API merged into OPENSSL_NO_STDIO
541 Remove OPENSSL_NO_BIO OPENSSL_NO_BUFFER OPENSSL_NO_CHAIN_VERIFY
542 OPENSSL_NO_EVP OPENSSL_NO_FIPS_ERR OPENSSL_NO_HASH_COMP
543 OPENSSL_NO_LHASH OPENSSL_NO_OBJECT OPENSSL_NO_SPEED OPENSSL_NO_STACK
544 OPENSSL_NO_X509 OPENSSL_NO_X509_VERIFY
545 Remove MS_STATIC; it's a relic from platforms <32 bits.
548 *) Cleaned up dead code
549 Remove all but one '#ifdef undef' which is to be looked at.
552 *) Clean up calling of xxx_free routines.
553 Just like free(), fix most of the xxx_free routines to accept
554 NULL. Remove the non-null checks from callers. Save much code.
557 *) Add secure heap for storage of private keys (when possible).
558 Add BIO_s_secmem(), CBIGNUM, etc.
559 Contributed by Akamai Technologies under our Corporate CLA.
562 *) Experimental support for a new, fast, unbiased prime candidate generator,
563 bn_probable_prime_dh_coprime(). Not currently used by any prime generator.
564 [Felix Laurie von Massenbach <felix@erbridge.co.uk>]
566 *) New output format NSS in the sess_id command line tool. This allows
567 exporting the session id and the master key in NSS keylog format.
568 [Martin Kaiser <martin@kaiser.cx>]
570 *) Harmonize version and its documentation. -f flag is used to display
572 [mancha <mancha1@zoho.com>]
574 *) Fix eckey_priv_encode so it immediately returns an error upon a failure
575 in i2d_ECPrivateKey. Thanks to Ted Unangst for feedback on this issue.
576 [mancha <mancha1@zoho.com>]
578 *) Fix some double frees. These are not thought to be exploitable.
579 [mancha <mancha1@zoho.com>]
581 *) A missing bounds check in the handling of the TLS heartbeat extension
582 can be used to reveal up to 64k of memory to a connected client or
585 Thanks for Neel Mehta of Google Security for discovering this bug and to
586 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for
587 preparing the fix (CVE-2014-0160)
588 [Adam Langley, Bodo Moeller]
590 *) Fix for the attack described in the paper "Recovering OpenSSL
591 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack"
592 by Yuval Yarom and Naomi Benger. Details can be obtained from:
593 http://eprint.iacr.org/2014/140
595 Thanks to Yuval Yarom and Naomi Benger for discovering this
596 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076)
597 [Yuval Yarom and Naomi Benger]
599 *) Use algorithm specific chains in SSL_CTX_use_certificate_chain_file():
600 this fixes a limitation in previous versions of OpenSSL.
603 *) Experimental encrypt-then-mac support.
605 Experimental support for encrypt then mac from
606 draft-gutmann-tls-encrypt-then-mac-02.txt
608 To enable it set the appropriate extension number (0x42 for the test
609 server) using e.g. -DTLSEXT_TYPE_encrypt_then_mac=0x42
611 For non-compliant peers (i.e. just about everything) this should have no
614 WARNING: EXPERIMENTAL, SUBJECT TO CHANGE.
618 *) Add EVP support for key wrapping algorithms, to avoid problems with
619 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in
620 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap
621 algorithms and include tests cases.
624 *) Extend CMS code to support RSA-PSS signatures and RSA-OAEP for
628 *) Extended RSA OAEP support via EVP_PKEY API. Options to specify digest,
629 MGF1 digest and OAEP label.
632 *) Make openssl verify return errors.
633 [Chris Palmer <palmer@google.com> and Ben Laurie]
635 *) New function ASN1_TIME_diff to calculate the difference between two
636 ASN1_TIME structures or one structure and the current time.
639 *) Update fips_test_suite to support multiple command line options. New
640 test to induce all self test errors in sequence and check expected
644 *) Add FIPS_{rsa,dsa,ecdsa}_{sign,verify} functions which digest and
645 sign or verify all in one operation.
648 *) Add fips_algvs: a multicall fips utility incorporating all the algorithm
649 test programs and fips_test_suite. Includes functionality to parse
650 the minimal script output of fipsalgest.pl directly.
653 *) Add authorisation parameter to FIPS_module_mode_set().
656 *) Add FIPS selftest for ECDH algorithm using P-224 and B-233 curves.
659 *) Use separate DRBG fields for internal and external flags. New function
660 FIPS_drbg_health_check() to perform on demand health checking. Add
661 generation tests to fips_test_suite with reduced health check interval to
662 demonstrate periodic health checking. Add "nodh" option to
663 fips_test_suite to skip very slow DH test.
666 *) New function FIPS_get_cipherbynid() to lookup FIPS supported ciphers
670 *) More extensive health check for DRBG checking many more failure modes.
671 New function FIPS_selftest_drbg_all() to handle every possible DRBG
672 combination: call this in fips_test_suite.
675 *) Add support for Dual EC DRBG from SP800-90. Update DRBG algorithm test
676 and POST to handle Dual EC cases.
679 *) Add support for canonical generation of DSA parameter 'g'. See
682 *) Add support for HMAC DRBG from SP800-90. Update DRBG algorithm test and
683 POST to handle HMAC cases.
686 *) Add functions FIPS_module_version() and FIPS_module_version_text()
687 to return numerical and string versions of the FIPS module number.
690 *) Rename FIPS_mode_set and FIPS_mode to FIPS_module_mode_set and
691 FIPS_module_mode. FIPS_mode and FIPS_mode_set will be implemented
692 outside the validated module in the FIPS capable OpenSSL.
695 *) Minor change to DRBG entropy callback semantics. In some cases
696 there is no multiple of the block length between min_len and
697 max_len. Allow the callback to return more than max_len bytes
698 of entropy but discard any extra: it is the callback's responsibility
699 to ensure that the extra data discarded does not impact the
700 requested amount of entropy.
703 *) Add PRNG security strength checks to RSA, DSA and ECDSA using
704 information in FIPS186-3, SP800-57 and SP800-131A.
707 *) CCM support via EVP. Interface is very similar to GCM case except we
708 must supply all data in one chunk (i.e. no update, final) and the
709 message length must be supplied if AAD is used. Add algorithm test
713 *) Initial version of POST overhaul. Add POST callback to allow the status
714 of POST to be monitored and/or failures induced. Modify fips_test_suite
715 to use callback. Always run all selftests even if one fails.
718 *) XTS support including algorithm test driver in the fips_gcmtest program.
719 Note: this does increase the maximum key length from 32 to 64 bytes but
720 there should be no binary compatibility issues as existing applications
721 will never use XTS mode.
724 *) Extensive reorganisation of FIPS PRNG behaviour. Remove all dependencies
725 to OpenSSL RAND code and replace with a tiny FIPS RAND API which also
726 performs algorithm blocking for unapproved PRNG types. Also do not
727 set PRNG type in FIPS_mode_set(): leave this to the application.
728 Add default OpenSSL DRBG handling: sets up FIPS PRNG and seeds with
729 the standard OpenSSL PRNG: set additional data to a date time vector.
732 *) Rename old X9.31 PRNG functions of the form FIPS_rand* to FIPS_x931*.
733 This shouldn't present any incompatibility problems because applications
734 shouldn't be using these directly and any that are will need to rethink
735 anyway as the X9.31 PRNG is now deprecated by FIPS 140-2
738 *) Extensive self tests and health checking required by SP800-90 DRBG.
739 Remove strength parameter from FIPS_drbg_instantiate and always
740 instantiate at maximum supported strength.
743 *) Add ECDH code to fips module and fips_ecdhvs for primitives only testing.
746 *) New algorithm test program fips_dhvs to handle DH primitives only testing.
749 *) New function DH_compute_key_padded() to compute a DH key and pad with
750 leading zeroes if needed: this complies with SP800-56A et al.
753 *) Initial implementation of SP800-90 DRBGs for Hash and CTR. Not used by
754 anything, incomplete, subject to change and largely untested at present.
757 *) Modify fipscanisteronly build option to only build the necessary object
758 files by filtering FIPS_EX_OBJ through a perl script in crypto/Makefile.
761 *) Add experimental option FIPSSYMS to give all symbols in
762 fipscanister.o and FIPS or fips prefix. This will avoid
763 conflicts with future versions of OpenSSL. Add perl script
764 util/fipsas.pl to preprocess assembly language source files
765 and rename any affected symbols.
768 *) Add selftest checks and algorithm block of non-fips algorithms in
769 FIPS mode. Remove DES2 from selftests.
772 *) Add ECDSA code to fips module. Add tiny fips_ecdsa_check to just
773 return internal method without any ENGINE dependencies. Add new
774 tiny fips sign and verify functions.
777 *) New build option no-ec2m to disable characteristic 2 code.
780 *) New build option "fipscanisteronly". This only builds fipscanister.o
781 and (currently) associated fips utilities. Uses the file Makefile.fips
782 instead of Makefile.org as the prototype.
785 *) Add some FIPS mode restrictions to GCM. Add internal IV generator.
786 Update fips_gcmtest to use IV generator.
789 *) Initial, experimental EVP support for AES-GCM. AAD can be input by
790 setting output buffer to NULL. The *Final function must be
791 called although it will not retrieve any additional data. The tag
792 can be set or retrieved with a ctrl. The IV length is by default 12
793 bytes (96 bits) but can be set to an alternative value. If the IV
794 length exceeds the maximum IV length (currently 16 bytes) it cannot be
798 *) New flag in ciphers: EVP_CIPH_FLAG_CUSTOM_CIPHER. This means the
799 underlying do_cipher function handles all cipher semantics itself
800 including padding and finalisation. This is useful if (for example)
801 an ENGINE cipher handles block padding itself. The behaviour of
802 do_cipher is subtly changed if this flag is set: the return value
803 is the number of characters written to the output buffer (zero is
804 no longer an error code) or a negative error code. Also if the
805 input buffer is NULL and length 0 finalisation should be performed.
808 *) If a candidate issuer certificate is already part of the constructed
809 path ignore it: new debug notification X509_V_ERR_PATH_LOOP for this case.
812 *) Improve forward-security support: add functions
814 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure))
815 void SSL_set_not_resumable_session_callback(SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure))
817 for use by SSL/TLS servers; the callback function will be called whenever a
818 new session is created, and gets to decide whether the session may be
819 cached to make it resumable (return 0) or not (return 1). (As by the
820 SSL/TLS protocol specifications, the session_id sent by the server will be
821 empty to indicate that the session is not resumable; also, the server will
822 not generate RFC 4507 (RFC 5077) session tickets.)
824 A simple reasonable callback implementation is to return is_forward_secure.
825 This parameter will be set to 1 or 0 depending on the ciphersuite selected
826 by the SSL/TLS server library, indicating whether it can provide forward
828 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
830 *) New -verify_name option in command line utilities to set verification
834 *) Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE.
835 Add CMAC pkey methods.
838 *) Experimental renegotiation in s_server -www mode. If the client
839 browses /reneg connection is renegotiated. If /renegcert it is
840 renegotiated requesting a certificate.
843 *) Add an "external" session cache for debugging purposes to s_server. This
844 should help trace issues which normally are only apparent in deployed
845 multi-process servers.
848 *) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where
849 return value is ignored. NB. The functions RAND_add(), RAND_seed(),
850 BIO_set_cipher() and some obscure PEM functions were changed so they
851 can now return an error. The RAND changes required a change to the
852 RAND_METHOD structure.
855 *) New macro __owur for "OpenSSL Warn Unused Result". This makes use of
856 a gcc attribute to warn if the result of a function is ignored. This
857 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h
858 whose return value is often ignored.
861 Changes between 1.0.2e and 1.0.2f [28 Jan 2016]
862 *) DH small subgroups
864 Historically OpenSSL only ever generated DH parameters based on "safe"
865 primes. More recently (in version 1.0.2) support was provided for
866 generating X9.42 style parameter files such as those required for RFC 5114
867 support. The primes used in such files may not be "safe". Where an
868 application is using DH configured with parameters based on primes that are
869 not "safe" then an attacker could use this fact to find a peer's private
870 DH exponent. This attack requires that the attacker complete multiple
871 handshakes in which the peer uses the same private DH exponent. For example
872 this could be used to discover a TLS server's private DH exponent if it's
873 reusing the private DH exponent or it's using a static DH ciphersuite.
875 OpenSSL provides the option SSL_OP_SINGLE_DH_USE for ephemeral DH (DHE) in
876 TLS. It is not on by default. If the option is not set then the server
877 reuses the same private DH exponent for the life of the server process and
878 would be vulnerable to this attack. It is believed that many popular
879 applications do set this option and would therefore not be at risk.
881 The fix for this issue adds an additional check where a "q" parameter is
882 available (as is the case in X9.42 based parameters). This detects the
883 only known attack, and is the only possible defense for static DH
884 ciphersuites. This could have some performance impact.
886 Additionally the SSL_OP_SINGLE_DH_USE option has been switched on by
887 default and cannot be disabled. This could have some performance impact.
889 This issue was reported to OpenSSL by Antonio Sanso (Adobe).
893 *) SSLv2 doesn't block disabled ciphers
895 A malicious client can negotiate SSLv2 ciphers that have been disabled on
896 the server and complete SSLv2 handshakes even if all SSLv2 ciphers have
897 been disabled, provided that the SSLv2 protocol was not also disabled via
900 This issue was reported to OpenSSL on 26th December 2015 by Nimrod Aviram
901 and Sebastian Schinzel.
905 Changes between 1.0.2d and 1.0.2e [3 Dec 2015]
907 *) BN_mod_exp may produce incorrect results on x86_64
909 There is a carry propagating bug in the x86_64 Montgomery squaring
910 procedure. No EC algorithms are affected. Analysis suggests that attacks
911 against RSA and DSA as a result of this defect would be very difficult to
912 perform and are not believed likely. Attacks against DH are considered just
913 feasible (although very difficult) because most of the work necessary to
914 deduce information about a private key may be performed offline. The amount
915 of resources required for such an attack would be very significant and
916 likely only accessible to a limited number of attackers. An attacker would
917 additionally need online access to an unpatched system using the target
918 private key in a scenario with persistent DH parameters and a private
919 key that is shared between multiple clients. For example this can occur by
920 default in OpenSSL DHE based SSL/TLS ciphersuites.
922 This issue was reported to OpenSSL by Hanno Böck.
926 *) Certificate verify crash with missing PSS parameter
928 The signature verification routines will crash with a NULL pointer
929 dereference if presented with an ASN.1 signature using the RSA PSS
930 algorithm and absent mask generation function parameter. Since these
931 routines are used to verify certificate signature algorithms this can be
932 used to crash any certificate verification operation and exploited in a
933 DoS attack. Any application which performs certificate verification is
934 vulnerable including OpenSSL clients and servers which enable client
937 This issue was reported to OpenSSL by Loïc Jonas Etienne (Qnective AG).
941 *) X509_ATTRIBUTE memory leak
943 When presented with a malformed X509_ATTRIBUTE structure OpenSSL will leak
944 memory. This structure is used by the PKCS#7 and CMS routines so any
945 application which reads PKCS#7 or CMS data from untrusted sources is
946 affected. SSL/TLS is not affected.
948 This issue was reported to OpenSSL by Adam Langley (Google/BoringSSL) using
953 *) Rewrite EVP_DecodeUpdate (base64 decoding) to fix several bugs.
954 This changes the decoding behaviour for some invalid messages,
955 though the change is mostly in the more lenient direction, and
956 legacy behaviour is preserved as much as possible.
959 *) In DSA_generate_parameters_ex, if the provided seed is too short,
961 [Rich Salz and Ismo Puustinen <ismo.puustinen@intel.com>]
963 Changes between 1.0.2c and 1.0.2d [9 Jul 2015]
965 *) Alternate chains certificate forgery
967 During certificate verfification, OpenSSL will attempt to find an
968 alternative certificate chain if the first attempt to build such a chain
969 fails. An error in the implementation of this logic can mean that an
970 attacker could cause certain checks on untrusted certificates to be
971 bypassed, such as the CA flag, enabling them to use a valid leaf
972 certificate to act as a CA and "issue" an invalid certificate.
974 This issue was reported to OpenSSL by Adam Langley/David Benjamin
978 Changes between 1.0.2b and 1.0.2c [12 Jun 2015]
980 *) Fix HMAC ABI incompatibility. The previous version introduced an ABI
981 incompatibility in the handling of HMAC. The previous ABI has now been
985 Changes between 1.0.2a and 1.0.2b [11 Jun 2015]
987 *) Malformed ECParameters causes infinite loop
989 When processing an ECParameters structure OpenSSL enters an infinite loop
990 if the curve specified is over a specially malformed binary polynomial
993 This can be used to perform denial of service against any
994 system which processes public keys, certificate requests or
995 certificates. This includes TLS clients and TLS servers with
996 client authentication enabled.
998 This issue was reported to OpenSSL by Joseph Barr-Pixton.
1002 *) Exploitable out-of-bounds read in X509_cmp_time
1004 X509_cmp_time does not properly check the length of the ASN1_TIME
1005 string and can read a few bytes out of bounds. In addition,
1006 X509_cmp_time accepts an arbitrary number of fractional seconds in the
1009 An attacker can use this to craft malformed certificates and CRLs of
1010 various sizes and potentially cause a segmentation fault, resulting in
1011 a DoS on applications that verify certificates or CRLs. TLS clients
1012 that verify CRLs are affected. TLS clients and servers with client
1013 authentication enabled may be affected if they use custom verification
1016 This issue was reported to OpenSSL by Robert Swiecki (Google), and
1017 independently by Hanno Böck.
1021 *) PKCS7 crash with missing EnvelopedContent
1023 The PKCS#7 parsing code does not handle missing inner EncryptedContent
1024 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs
1025 with missing content and trigger a NULL pointer dereference on parsing.
1027 Applications that decrypt PKCS#7 data or otherwise parse PKCS#7
1028 structures from untrusted sources are affected. OpenSSL clients and
1029 servers are not affected.
1031 This issue was reported to OpenSSL by Michal Zalewski (Google).
1035 *) CMS verify infinite loop with unknown hash function
1037 When verifying a signedData message the CMS code can enter an infinite loop
1038 if presented with an unknown hash function OID. This can be used to perform
1039 denial of service against any system which verifies signedData messages using
1041 This issue was reported to OpenSSL by Johannes Bauer.
1045 *) Race condition handling NewSessionTicket
1047 If a NewSessionTicket is received by a multi-threaded client when attempting to
1048 reuse a previous ticket then a race condition can occur potentially leading to
1049 a double free of the ticket data.
1053 *) Only support 256-bit or stronger elliptic curves with the
1054 'ecdh_auto' setting (server) or by default (client). Of supported
1055 curves, prefer P-256 (both).
1058 Changes between 1.0.2 and 1.0.2a [19 Mar 2015]
1060 *) ClientHello sigalgs DoS fix
1062 If a client connects to an OpenSSL 1.0.2 server and renegotiates with an
1063 invalid signature algorithms extension a NULL pointer dereference will
1064 occur. This can be exploited in a DoS attack against the server.
1066 This issue was was reported to OpenSSL by David Ramos of Stanford
1069 [Stephen Henson and Matt Caswell]
1071 *) Multiblock corrupted pointer fix
1073 OpenSSL 1.0.2 introduced the "multiblock" performance improvement. This
1074 feature only applies on 64 bit x86 architecture platforms that support AES
1075 NI instructions. A defect in the implementation of "multiblock" can cause
1076 OpenSSL's internal write buffer to become incorrectly set to NULL when
1077 using non-blocking IO. Typically, when the user application is using a
1078 socket BIO for writing, this will only result in a failed connection.
1079 However if some other BIO is used then it is likely that a segmentation
1080 fault will be triggered, thus enabling a potential DoS attack.
1082 This issue was reported to OpenSSL by Daniel Danner and Rainer Mueller.
1086 *) Segmentation fault in DTLSv1_listen fix
1088 The DTLSv1_listen function is intended to be stateless and processes the
1089 initial ClientHello from many peers. It is common for user code to loop
1090 over the call to DTLSv1_listen until a valid ClientHello is received with
1091 an associated cookie. A defect in the implementation of DTLSv1_listen means
1092 that state is preserved in the SSL object from one invocation to the next
1093 that can lead to a segmentation fault. Errors processing the initial
1094 ClientHello can trigger this scenario. An example of such an error could be
1095 that a DTLS1.0 only client is attempting to connect to a DTLS1.2 only
1098 This issue was reported to OpenSSL by Per Allansson.
1102 *) Segmentation fault in ASN1_TYPE_cmp fix
1104 The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is
1105 made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check
1106 certificate signature algorithm consistency this can be used to crash any
1107 certificate verification operation and exploited in a DoS attack. Any
1108 application which performs certificate verification is vulnerable including
1109 OpenSSL clients and servers which enable client authentication.
1113 *) Segmentation fault for invalid PSS parameters fix
1115 The signature verification routines will crash with a NULL pointer
1116 dereference if presented with an ASN.1 signature using the RSA PSS
1117 algorithm and invalid parameters. Since these routines are used to verify
1118 certificate signature algorithms this can be used to crash any
1119 certificate verification operation and exploited in a DoS attack. Any
1120 application which performs certificate verification is vulnerable including
1121 OpenSSL clients and servers which enable client authentication.
1123 This issue was was reported to OpenSSL by Brian Carpenter.
1127 *) ASN.1 structure reuse memory corruption fix
1129 Reusing a structure in ASN.1 parsing may allow an attacker to cause
1130 memory corruption via an invalid write. Such reuse is and has been
1131 strongly discouraged and is believed to be rare.
1133 Applications that parse structures containing CHOICE or ANY DEFINED BY
1134 components may be affected. Certificate parsing (d2i_X509 and related
1135 functions) are however not affected. OpenSSL clients and servers are
1140 *) PKCS7 NULL pointer dereferences fix
1142 The PKCS#7 parsing code does not handle missing outer ContentInfo
1143 correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with
1144 missing content and trigger a NULL pointer dereference on parsing.
1146 Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or
1147 otherwise parse PKCS#7 structures from untrusted sources are
1148 affected. OpenSSL clients and servers are not affected.
1150 This issue was reported to OpenSSL by Michal Zalewski (Google).
1154 *) DoS via reachable assert in SSLv2 servers fix
1156 A malicious client can trigger an OPENSSL_assert (i.e., an abort) in
1157 servers that both support SSLv2 and enable export cipher suites by sending
1158 a specially crafted SSLv2 CLIENT-MASTER-KEY message.
1160 This issue was discovered by Sean Burford (Google) and Emilia Käsper
1161 (OpenSSL development team).
1165 *) Empty CKE with client auth and DHE fix
1167 If client auth is used then a server can seg fault in the event of a DHE
1168 ciphersuite being selected and a zero length ClientKeyExchange message
1169 being sent by the client. This could be exploited in a DoS attack.
1173 *) Handshake with unseeded PRNG fix
1175 Under certain conditions an OpenSSL 1.0.2 client can complete a handshake
1176 with an unseeded PRNG. The conditions are:
1177 - The client is on a platform where the PRNG has not been seeded
1178 automatically, and the user has not seeded manually
1179 - A protocol specific client method version has been used (i.e. not
1180 SSL_client_methodv23)
1181 - A ciphersuite is used that does not require additional random data from
1182 the PRNG beyond the initial ClientHello client random (e.g. PSK-RC4-SHA).
1184 If the handshake succeeds then the client random that has been used will
1185 have been generated from a PRNG with insufficient entropy and therefore the
1186 output may be predictable.
1188 For example using the following command with an unseeded openssl will
1189 succeed on an unpatched platform:
1191 openssl s_client -psk 1a2b3c4d -tls1_2 -cipher PSK-RC4-SHA
1195 *) Use After Free following d2i_ECPrivatekey error fix
1197 A malformed EC private key file consumed via the d2i_ECPrivateKey function
1198 could cause a use after free condition. This, in turn, could cause a double
1199 free in several private key parsing functions (such as d2i_PrivateKey
1200 or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption
1201 for applications that receive EC private keys from untrusted
1202 sources. This scenario is considered rare.
1204 This issue was discovered by the BoringSSL project and fixed in their
1209 *) X509_to_X509_REQ NULL pointer deref fix
1211 The function X509_to_X509_REQ will crash with a NULL pointer dereference if
1212 the certificate key is invalid. This function is rarely used in practice.
1214 This issue was discovered by Brian Carpenter.
1218 *) Removed the export ciphers from the DEFAULT ciphers
1221 Changes between 1.0.1l and 1.0.2 [22 Jan 2015]
1223 *) Facilitate "universal" ARM builds targeting range of ARM ISAs, e.g.
1224 ARMv5 through ARMv8, as opposite to "locking" it to single one.
1225 So far those who have to target multiple plaforms would compromise
1226 and argue that binary targeting say ARMv5 would still execute on
1227 ARMv8. "Universal" build resolves this compromise by providing
1228 near-optimal performance even on newer platforms.
1231 *) Accelerated NIST P-256 elliptic curve implementation for x86_64
1232 (other platforms pending).
1233 [Shay Gueron & Vlad Krasnov (Intel Corp), Andy Polyakov]
1235 *) Add support for the SignedCertificateTimestampList certificate and
1236 OCSP response extensions from RFC6962.
1239 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.)
1240 for corner cases. (Certain input points at infinity could lead to
1241 bogus results, with non-infinity inputs mapped to infinity too.)
1244 *) Initial support for PowerISA 2.0.7, first implemented in POWER8.
1245 This covers AES, SHA256/512 and GHASH. "Initial" means that most
1246 common cases are optimized and there still is room for further
1247 improvements. Vector Permutation AES for Altivec is also added.
1250 *) Add support for little-endian ppc64 Linux target.
1251 [Marcelo Cerri (IBM)]
1253 *) Initial support for AMRv8 ISA crypto extensions. This covers AES,
1254 SHA1, SHA256 and GHASH. "Initial" means that most common cases
1255 are optimized and there still is room for further improvements.
1256 Both 32- and 64-bit modes are supported.
1257 [Andy Polyakov, Ard Biesheuvel (Linaro)]
1259 *) Improved ARMv7 NEON support.
1262 *) Support for SPARC Architecture 2011 crypto extensions, first
1263 implemented in SPARC T4. This covers AES, DES, Camellia, SHA1,
1264 SHA256/512, MD5, GHASH and modular exponentiation.
1265 [Andy Polyakov, David Miller]
1267 *) Accelerated modular exponentiation for Intel processors, a.k.a.
1269 [Shay Gueron & Vlad Krasnov (Intel Corp)]
1271 *) Support for new and upcoming Intel processors, including AVX2,
1272 BMI and SHA ISA extensions. This includes additional "stitched"
1273 implementations, AESNI-SHA256 and GCM, and multi-buffer support
1276 This work was sponsored by Intel Corp.
1279 *) Support for DTLS 1.2. This adds two sets of DTLS methods: DTLS_*_method()
1280 supports both DTLS 1.2 and 1.0 and should use whatever version the peer
1281 supports and DTLSv1_2_*_method() which supports DTLS 1.2 only.
1284 *) Use algorithm specific chains in SSL_CTX_use_certificate_chain_file():
1285 this fixes a limiation in previous versions of OpenSSL.
1288 *) Extended RSA OAEP support via EVP_PKEY API. Options to specify digest,
1289 MGF1 digest and OAEP label.
1292 *) Add EVP support for key wrapping algorithms, to avoid problems with
1293 existing code the flag EVP_CIPHER_CTX_WRAP_ALLOW has to be set in
1294 the EVP_CIPHER_CTX or an error is returned. Add AES and DES3 wrap
1295 algorithms and include tests cases.
1298 *) Add functions to allocate and set the fields of an ECDSA_METHOD
1300 [Douglas E. Engert, Steve Henson]
1302 *) New functions OPENSSL_gmtime_diff and ASN1_TIME_diff to find the
1303 difference in days and seconds between two tm or ASN1_TIME structures.
1306 *) Add -rev test option to s_server to just reverse order of characters
1307 received by client and send back to server. Also prints an abbreviated
1308 summary of the connection parameters.
1311 *) New option -brief for s_client and s_server to print out a brief summary
1312 of connection parameters.
1315 *) Add callbacks for arbitrary TLS extensions.
1316 [Trevor Perrin <trevp@trevp.net> and Ben Laurie]
1318 *) New option -crl_download in several openssl utilities to download CRLs
1319 from CRLDP extension in certificates.
1322 *) New options -CRL and -CRLform for s_client and s_server for CRLs.
1325 *) New function X509_CRL_diff to generate a delta CRL from the difference
1326 of two full CRLs. Add support to "crl" utility.
1329 *) New functions to set lookup_crls function and to retrieve
1330 X509_STORE from X509_STORE_CTX.
1333 *) Print out deprecated issuer and subject unique ID fields in
1337 *) Extend OCSP I/O functions so they can be used for simple general purpose
1338 HTTP as well as OCSP. New wrapper function which can be used to download
1339 CRLs using the OCSP API.
1342 *) Delegate command line handling in s_client/s_server to SSL_CONF APIs.
1345 *) SSL_CONF* functions. These provide a common framework for application
1346 configuration using configuration files or command lines.
1349 *) SSL/TLS tracing code. This parses out SSL/TLS records using the
1350 message callback and prints the results. Needs compile time option
1351 "enable-ssl-trace". New options to s_client and s_server to enable
1355 *) New ctrl and macro to retrieve supported points extensions.
1356 Print out extension in s_server and s_client.
1359 *) New functions to retrieve certificate signature and signature
1363 *) Add functions to retrieve and manipulate the raw cipherlist sent by a
1367 *) New Suite B modes for TLS code. These use and enforce the requirements
1368 of RFC6460: restrict ciphersuites, only permit Suite B algorithms and
1369 only use Suite B curves. The Suite B modes can be set by using the
1370 strings "SUITEB128", "SUITEB192" or "SUITEB128ONLY" for the cipherstring.
1373 *) New chain verification flags for Suite B levels of security. Check
1374 algorithms are acceptable when flags are set in X509_verify_cert.
1377 *) Make tls1_check_chain return a set of flags indicating checks passed
1378 by a certificate chain. Add additional tests to handle client
1379 certificates: checks for matching certificate type and issuer name
1383 *) If an attempt is made to use a signature algorithm not in the peer
1384 preference list abort the handshake. If client has no suitable
1385 signature algorithms in response to a certificate request do not
1386 use the certificate.
1389 *) If server EC tmp key is not in client preference list abort handshake.
1392 *) Add support for certificate stores in CERT structure. This makes it
1393 possible to have different stores per SSL structure or one store in
1394 the parent SSL_CTX. Include distint stores for certificate chain
1395 verification and chain building. New ctrl SSL_CTRL_BUILD_CERT_CHAIN
1396 to build and store a certificate chain in CERT structure: returing
1397 an error if the chain cannot be built: this will allow applications
1398 to test if a chain is correctly configured.
1400 Note: if the CERT based stores are not set then the parent SSL_CTX
1401 store is used to retain compatibility with existing behaviour.
1405 *) New function ssl_set_client_disabled to set a ciphersuite disabled
1406 mask based on the current session, check mask when sending client
1407 hello and checking the requested ciphersuite.
1410 *) New ctrls to retrieve and set certificate types in a certificate
1411 request message. Print out received values in s_client. If certificate
1412 types is not set with custom values set sensible values based on
1413 supported signature algorithms.
1416 *) Support for distinct client and server supported signature algorithms.
1419 *) Add certificate callback. If set this is called whenever a certificate
1420 is required by client or server. An application can decide which
1421 certificate chain to present based on arbitrary criteria: for example
1422 supported signature algorithms. Add very simple example to s_server.
1423 This fixes many of the problems and restrictions of the existing client
1424 certificate callback: for example you can now clear an existing
1425 certificate and specify the whole chain.
1428 *) Add new "valid_flags" field to CERT_PKEY structure which determines what
1429 the certificate can be used for (if anything). Set valid_flags field
1430 in new tls1_check_chain function. Simplify ssl_set_cert_masks which used
1431 to have similar checks in it.
1433 Add new "cert_flags" field to CERT structure and include a "strict mode".
1434 This enforces some TLS certificate requirements (such as only permitting
1435 certificate signature algorithms contained in the supported algorithms
1436 extension) which some implementations ignore: this option should be used
1437 with caution as it could cause interoperability issues.
1440 *) Update and tidy signature algorithm extension processing. Work out
1441 shared signature algorithms based on preferences and peer algorithms
1442 and print them out in s_client and s_server. Abort handshake if no
1443 shared signature algorithms.
1446 *) Add new functions to allow customised supported signature algorithms
1447 for SSL and SSL_CTX structures. Add options to s_client and s_server
1451 *) New function SSL_certs_clear() to delete all references to certificates
1452 from an SSL structure. Before this once a certificate had been added
1453 it couldn't be removed.
1456 *) Integrate hostname, email address and IP address checking with certificate
1457 verification. New verify options supporting checking in opensl utility.
1460 *) Fixes and wildcard matching support to hostname and email checking
1461 functions. Add manual page.
1462 [Florian Weimer (Red Hat Product Security Team)]
1464 *) New functions to check a hostname email or IP address against a
1465 certificate. Add options x509 utility to print results of checks against
1469 *) Fix OCSP checking.
1470 [Rob Stradling <rob.stradling@comodo.com> and Ben Laurie]
1472 *) Initial experimental support for explicitly trusted non-root CAs.
1473 OpenSSL still tries to build a complete chain to a root but if an
1474 intermediate CA has a trust setting included that is used. The first
1475 setting is used: whether to trust (e.g., -addtrust option to the x509
1479 *) Add -trusted_first option which attempts to find certificates in the
1480 trusted store even if an untrusted chain is also supplied.
1483 *) MIPS assembly pack updates: support for MIPS32r2 and SmartMIPS ASE,
1484 platform support for Linux and Android.
1487 *) Support for linux-x32, ILP32 environment in x86_64 framework.
1490 *) Experimental multi-implementation support for FIPS capable OpenSSL.
1491 When in FIPS mode the approved implementations are used as normal,
1492 when not in FIPS mode the internal unapproved versions are used instead.
1493 This means that the FIPS capable OpenSSL isn't forced to use the
1494 (often lower performance) FIPS implementations outside FIPS mode.
1497 *) Transparently support X9.42 DH parameters when calling
1498 PEM_read_bio_DHparameters. This means existing applications can handle
1499 the new parameter format automatically.
1502 *) Initial experimental support for X9.42 DH parameter format: mainly
1503 to support use of 'q' parameter for RFC5114 parameters.
1506 *) Add DH parameters from RFC5114 including test data to dhtest.
1509 *) Support for automatic EC temporary key parameter selection. If enabled
1510 the most preferred EC parameters are automatically used instead of
1511 hardcoded fixed parameters. Now a server just has to call:
1512 SSL_CTX_set_ecdh_auto(ctx, 1) and the server will automatically
1513 support ECDH and use the most appropriate parameters.
1516 *) Enhance and tidy EC curve and point format TLS extension code. Use
1517 static structures instead of allocation if default values are used.
1518 New ctrls to set curves we wish to support and to retrieve shared curves.
1519 Print out shared curves in s_server. New options to s_server and s_client
1520 to set list of supported curves.
1523 *) New ctrls to retrieve supported signature algorithms and
1524 supported curve values as an array of NIDs. Extend openssl utility
1525 to print out received values.
1528 *) Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert
1529 between NIDs and the more common NIST names such as "P-256". Enhance
1530 ecparam utility and ECC method to recognise the NIST names for curves.
1533 *) Enhance SSL/TLS certificate chain handling to support different
1534 chains for each certificate instead of one chain in the parent SSL_CTX.
1537 *) Support for fixed DH ciphersuite client authentication: where both
1538 server and client use DH certificates with common parameters.
1541 *) Support for fixed DH ciphersuites: those requiring DH server
1545 *) New function i2d_re_X509_tbs for re-encoding the TBS portion of
1547 Note: Related 1.0.2-beta specific macros X509_get_cert_info,
1548 X509_CINF_set_modified, X509_CINF_get_issuer, X509_CINF_get_extensions and
1549 X509_CINF_get_signature were reverted post internal team review.
1551 Changes between 1.0.1k and 1.0.1l [15 Jan 2015]
1553 *) Build fixes for the Windows and OpenVMS platforms
1554 [Matt Caswell and Richard Levitte]
1556 Changes between 1.0.1j and 1.0.1k [8 Jan 2015]
1558 *) Fix DTLS segmentation fault in dtls1_get_record. A carefully crafted DTLS
1559 message can cause a segmentation fault in OpenSSL due to a NULL pointer
1560 dereference. This could lead to a Denial Of Service attack. Thanks to
1561 Markus Stenberg of Cisco Systems, Inc. for reporting this issue.
1565 *) Fix DTLS memory leak in dtls1_buffer_record. A memory leak can occur in the
1566 dtls1_buffer_record function under certain conditions. In particular this
1567 could occur if an attacker sent repeated DTLS records with the same
1568 sequence number but for the next epoch. The memory leak could be exploited
1569 by an attacker in a Denial of Service attack through memory exhaustion.
1570 Thanks to Chris Mueller for reporting this issue.
1574 *) Fix issue where no-ssl3 configuration sets method to NULL. When openssl is
1575 built with the no-ssl3 option and a SSL v3 ClientHello is received the ssl
1576 method would be set to NULL which could later result in a NULL pointer
1577 dereference. Thanks to Frank Schmirler for reporting this issue.
1581 *) Abort handshake if server key exchange message is omitted for ephemeral
1584 Thanks to Karthikeyan Bhargavan of the PROSECCO team at INRIA for
1585 reporting this issue.
1589 *) Remove non-export ephemeral RSA code on client and server. This code
1590 violated the TLS standard by allowing the use of temporary RSA keys in
1591 non-export ciphersuites and could be used by a server to effectively
1592 downgrade the RSA key length used to a value smaller than the server
1593 certificate. Thanks for Karthikeyan Bhargavan of the PROSECCO team at
1594 INRIA or reporting this issue.
1598 *) Fixed issue where DH client certificates are accepted without verification.
1599 An OpenSSL server will accept a DH certificate for client authentication
1600 without the certificate verify message. This effectively allows a client to
1601 authenticate without the use of a private key. This only affects servers
1602 which trust a client certificate authority which issues certificates
1603 containing DH keys: these are extremely rare and hardly ever encountered.
1604 Thanks for Karthikeyan Bhargavan of the PROSECCO team at INRIA or reporting
1609 *) Ensure that the session ID context of an SSL is updated when its
1610 SSL_CTX is updated via SSL_set_SSL_CTX.
1612 The session ID context is typically set from the parent SSL_CTX,
1613 and can vary with the CTX.
1616 *) Fix various certificate fingerprint issues.
1618 By using non-DER or invalid encodings outside the signed portion of a
1619 certificate the fingerprint can be changed without breaking the signature.
1620 Although no details of the signed portion of the certificate can be changed
1621 this can cause problems with some applications: e.g. those using the
1622 certificate fingerprint for blacklists.
1624 1. Reject signatures with non zero unused bits.
1626 If the BIT STRING containing the signature has non zero unused bits reject
1627 the signature. All current signature algorithms require zero unused bits.
1629 2. Check certificate algorithm consistency.
1631 Check the AlgorithmIdentifier inside TBS matches the one in the
1632 certificate signature. NB: this will result in signature failure
1633 errors for some broken certificates.
1635 Thanks to Konrad Kraszewski from Google for reporting this issue.
1637 3. Check DSA/ECDSA signatures use DER.
1639 Reencode DSA/ECDSA signatures and compare with the original received
1640 signature. Return an error if there is a mismatch.
1642 This will reject various cases including garbage after signature
1643 (thanks to Antti Karjalainen and Tuomo Untinen from the Codenomicon CROSS
1644 program for discovering this case) and use of BER or invalid ASN.1 INTEGERs
1645 (negative or with leading zeroes).
1647 Further analysis was conducted and fixes were developed by Stephen Henson
1648 of the OpenSSL core team.
1653 *) Correct Bignum squaring. Bignum squaring (BN_sqr) may produce incorrect
1654 results on some platforms, including x86_64. This bug occurs at random
1655 with a very low probability, and is not known to be exploitable in any
1656 way, though its exact impact is difficult to determine. Thanks to Pieter
1657 Wuille (Blockstream) who reported this issue and also suggested an initial
1658 fix. Further analysis was conducted by the OpenSSL development team and
1659 Adam Langley of Google. The final fix was developed by Andy Polyakov of
1660 the OpenSSL core team.
1664 *) Do not resume sessions on the server if the negotiated protocol
1665 version does not match the session's version. Resuming with a different
1666 version, while not strictly forbidden by the RFC, is of questionable
1667 sanity and breaks all known clients.
1668 [David Benjamin, Emilia Käsper]
1670 *) Tighten handling of the ChangeCipherSpec (CCS) message: reject
1671 early CCS messages during renegotiation. (Note that because
1672 renegotiation is encrypted, this early CCS was not exploitable.)
1675 *) Tighten client-side session ticket handling during renegotiation:
1676 ensure that the client only accepts a session ticket if the server sends
1677 the extension anew in the ServerHello. Previously, a TLS client would
1678 reuse the old extension state and thus accept a session ticket if one was
1679 announced in the initial ServerHello.
1681 Similarly, ensure that the client requires a session ticket if one
1682 was advertised in the ServerHello. Previously, a TLS client would
1683 ignore a missing NewSessionTicket message.
1686 Changes between 1.0.1i and 1.0.1j [15 Oct 2014]
1688 *) SRTP Memory Leak.
1690 A flaw in the DTLS SRTP extension parsing code allows an attacker, who
1691 sends a carefully crafted handshake message, to cause OpenSSL to fail
1692 to free up to 64k of memory causing a memory leak. This could be
1693 exploited in a Denial Of Service attack. This issue affects OpenSSL
1694 1.0.1 server implementations for both SSL/TLS and DTLS regardless of
1695 whether SRTP is used or configured. Implementations of OpenSSL that
1696 have been compiled with OPENSSL_NO_SRTP defined are not affected.
1698 The fix was developed by the OpenSSL team.
1702 *) Session Ticket Memory Leak.
1704 When an OpenSSL SSL/TLS/DTLS server receives a session ticket the
1705 integrity of that ticket is first verified. In the event of a session
1706 ticket integrity check failing, OpenSSL will fail to free memory
1707 causing a memory leak. By sending a large number of invalid session
1708 tickets an attacker could exploit this issue in a Denial Of Service
1713 *) Build option no-ssl3 is incomplete.
1715 When OpenSSL is configured with "no-ssl3" as a build option, servers
1716 could accept and complete a SSL 3.0 handshake, and clients could be
1717 configured to send them.
1719 [Akamai and the OpenSSL team]
1721 *) Add support for TLS_FALLBACK_SCSV.
1722 Client applications doing fallback retries should call
1723 SSL_set_mode(s, SSL_MODE_SEND_FALLBACK_SCSV).
1725 [Adam Langley, Bodo Moeller]
1727 *) Add additional DigestInfo checks.
1729 Reencode DigestInto in DER and check against the original when
1730 verifying RSA signature: this will reject any improperly encoded
1731 DigestInfo structures.
1733 Note: this is a precautionary measure and no attacks are currently known.
1737 Changes between 1.0.1h and 1.0.1i [6 Aug 2014]
1739 *) Fix SRP buffer overrun vulnerability. Invalid parameters passed to the
1740 SRP code can be overrun an internal buffer. Add sanity check that
1741 g, A, B < N to SRP code.
1743 Thanks to Sean Devlin and Watson Ladd of Cryptography Services, NCC
1744 Group for discovering this issue.
1748 *) A flaw in the OpenSSL SSL/TLS server code causes the server to negotiate
1749 TLS 1.0 instead of higher protocol versions when the ClientHello message
1750 is badly fragmented. This allows a man-in-the-middle attacker to force a
1751 downgrade to TLS 1.0 even if both the server and the client support a
1752 higher protocol version, by modifying the client's TLS records.
1754 Thanks to David Benjamin and Adam Langley (Google) for discovering and
1755 researching this issue.
1759 *) OpenSSL DTLS clients enabling anonymous (EC)DH ciphersuites are subject
1760 to a denial of service attack. A malicious server can crash the client
1761 with a null pointer dereference (read) by specifying an anonymous (EC)DH
1762 ciphersuite and sending carefully crafted handshake messages.
1764 Thanks to Felix Gröbert (Google) for discovering and researching this
1769 *) By sending carefully crafted DTLS packets an attacker could cause openssl
1770 to leak memory. This can be exploited through a Denial of Service attack.
1771 Thanks to Adam Langley for discovering and researching this issue.
1775 *) An attacker can force openssl to consume large amounts of memory whilst
1776 processing DTLS handshake messages. This can be exploited through a
1777 Denial of Service attack.
1778 Thanks to Adam Langley for discovering and researching this issue.
1782 *) An attacker can force an error condition which causes openssl to crash
1783 whilst processing DTLS packets due to memory being freed twice. This
1784 can be exploited through a Denial of Service attack.
1785 Thanks to Adam Langley and Wan-Teh Chang for discovering and researching
1790 *) If a multithreaded client connects to a malicious server using a resumed
1791 session and the server sends an ec point format extension it could write
1792 up to 255 bytes to freed memory.
1794 Thanks to Gabor Tyukasz (LogMeIn Inc) for discovering and researching this
1799 *) A malicious server can crash an OpenSSL client with a null pointer
1800 dereference (read) by specifying an SRP ciphersuite even though it was not
1801 properly negotiated with the client. This can be exploited through a
1802 Denial of Service attack.
1804 Thanks to Joonas Kuorilehto and Riku Hietamäki (Codenomicon) for
1805 discovering and researching this issue.
1809 *) A flaw in OBJ_obj2txt may cause pretty printing functions such as
1810 X509_name_oneline, X509_name_print_ex et al. to leak some information
1811 from the stack. Applications may be affected if they echo pretty printing
1812 output to the attacker.
1814 Thanks to Ivan Fratric (Google) for discovering this issue.
1816 [Emilia Käsper, and Steve Henson]
1818 *) Fix ec_GFp_simple_points_make_affine (thus, EC_POINTs_mul etc.)
1819 for corner cases. (Certain input points at infinity could lead to
1820 bogus results, with non-infinity inputs mapped to infinity too.)
1823 Changes between 1.0.1g and 1.0.1h [5 Jun 2014]
1825 *) Fix for SSL/TLS MITM flaw. An attacker using a carefully crafted
1826 handshake can force the use of weak keying material in OpenSSL
1827 SSL/TLS clients and servers.
1829 Thanks to KIKUCHI Masashi (Lepidum Co. Ltd.) for discovering and
1830 researching this issue. (CVE-2014-0224)
1831 [KIKUCHI Masashi, Steve Henson]
1833 *) Fix DTLS recursion flaw. By sending an invalid DTLS handshake to an
1834 OpenSSL DTLS client the code can be made to recurse eventually crashing
1837 Thanks to Imre Rad (Search-Lab Ltd.) for discovering this issue.
1839 [Imre Rad, Steve Henson]
1841 *) Fix DTLS invalid fragment vulnerability. A buffer overrun attack can
1842 be triggered by sending invalid DTLS fragments to an OpenSSL DTLS
1843 client or server. This is potentially exploitable to run arbitrary
1844 code on a vulnerable client or server.
1846 Thanks to Jüri Aedla for reporting this issue. (CVE-2014-0195)
1847 [Jüri Aedla, Steve Henson]
1849 *) Fix bug in TLS code where clients enable anonymous ECDH ciphersuites
1850 are subject to a denial of service attack.
1852 Thanks to Felix Gröbert and Ivan Fratric at Google for discovering
1853 this issue. (CVE-2014-3470)
1854 [Felix Gröbert, Ivan Fratric, Steve Henson]
1856 *) Harmonize version and its documentation. -f flag is used to display
1858 [mancha <mancha1@zoho.com>]
1860 *) Fix eckey_priv_encode so it immediately returns an error upon a failure
1861 in i2d_ECPrivateKey.
1862 [mancha <mancha1@zoho.com>]
1864 *) Fix some double frees. These are not thought to be exploitable.
1865 [mancha <mancha1@zoho.com>]
1867 Changes between 1.0.1f and 1.0.1g [7 Apr 2014]
1869 *) A missing bounds check in the handling of the TLS heartbeat extension
1870 can be used to reveal up to 64k of memory to a connected client or
1873 Thanks for Neel Mehta of Google Security for discovering this bug and to
1874 Adam Langley <agl@chromium.org> and Bodo Moeller <bmoeller@acm.org> for
1875 preparing the fix (CVE-2014-0160)
1876 [Adam Langley, Bodo Moeller]
1878 *) Fix for the attack described in the paper "Recovering OpenSSL
1879 ECDSA Nonces Using the FLUSH+RELOAD Cache Side-channel Attack"
1880 by Yuval Yarom and Naomi Benger. Details can be obtained from:
1881 http://eprint.iacr.org/2014/140
1883 Thanks to Yuval Yarom and Naomi Benger for discovering this
1884 flaw and to Yuval Yarom for supplying a fix (CVE-2014-0076)
1885 [Yuval Yarom and Naomi Benger]
1887 *) TLS pad extension: draft-agl-tls-padding-03
1889 Workaround for the "TLS hang bug" (see FAQ and PR#2771): if the
1890 TLS client Hello record length value would otherwise be > 255 and
1891 less that 512 pad with a dummy extension containing zeroes so it
1892 is at least 512 bytes long.
1894 [Adam Langley, Steve Henson]
1896 Changes between 1.0.1e and 1.0.1f [6 Jan 2014]
1898 *) Fix for TLS record tampering bug. A carefully crafted invalid
1899 handshake could crash OpenSSL with a NULL pointer exception.
1900 Thanks to Anton Johansson for reporting this issues.
1903 *) Keep original DTLS digest and encryption contexts in retransmission
1904 structures so we can use the previous session parameters if they need
1905 to be resent. (CVE-2013-6450)
1908 *) Add option SSL_OP_SAFARI_ECDHE_ECDSA_BUG (part of SSL_OP_ALL) which
1909 avoids preferring ECDHE-ECDSA ciphers when the client appears to be
1910 Safari on OS X. Safari on OS X 10.8..10.8.3 advertises support for
1911 several ECDHE-ECDSA ciphers, but fails to negotiate them. The bug
1912 is fixed in OS X 10.8.4, but Apple have ruled out both hot fixing
1913 10.8..10.8.3 and forcing users to upgrade to 10.8.4 or newer.
1914 [Rob Stradling, Adam Langley]
1916 Changes between 1.0.1d and 1.0.1e [11 Feb 2013]
1918 *) Correct fix for CVE-2013-0169. The original didn't work on AES-NI
1919 supporting platforms or when small records were transferred.
1920 [Andy Polyakov, Steve Henson]
1922 Changes between 1.0.1c and 1.0.1d [5 Feb 2013]
1924 *) Make the decoding of SSLv3, TLS and DTLS CBC records constant time.
1926 This addresses the flaw in CBC record processing discovered by
1927 Nadhem Alfardan and Kenny Paterson. Details of this attack can be found
1928 at: http://www.isg.rhul.ac.uk/tls/
1930 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
1931 Security Group at Royal Holloway, University of London
1932 (www.isg.rhul.ac.uk) for discovering this flaw and Adam Langley and
1933 Emilia Käsper for the initial patch.
1935 [Emilia Käsper, Adam Langley, Ben Laurie, Andy Polyakov, Steve Henson]
1937 *) Fix flaw in AESNI handling of TLS 1.2 and 1.1 records for CBC mode
1938 ciphersuites which can be exploited in a denial of service attack.
1939 Thanks go to and to Adam Langley <agl@chromium.org> for discovering
1940 and detecting this bug and to Wolfgang Ettlinger
1941 <wolfgang.ettlinger@gmail.com> for independently discovering this issue.
1945 *) Return an error when checking OCSP signatures when key is NULL.
1946 This fixes a DoS attack. (CVE-2013-0166)
1949 *) Make openssl verify return errors.
1950 [Chris Palmer <palmer@google.com> and Ben Laurie]
1952 *) Call OCSP Stapling callback after ciphersuite has been chosen, so
1953 the right response is stapled. Also change SSL_get_certificate()
1954 so it returns the certificate actually sent.
1955 See http://rt.openssl.org/Ticket/Display.html?id=2836.
1956 [Rob Stradling <rob.stradling@comodo.com>]
1958 *) Fix possible deadlock when decoding public keys.
1961 *) Don't use TLS 1.0 record version number in initial client hello
1965 Changes between 1.0.1b and 1.0.1c [10 May 2012]
1967 *) Sanity check record length before skipping explicit IV in TLS
1968 1.2, 1.1 and DTLS to fix DoS attack.
1970 Thanks to Codenomicon for discovering this issue using Fuzz-o-Matic
1971 fuzzing as a service testing platform.
1975 *) Initialise tkeylen properly when encrypting CMS messages.
1976 Thanks to Solar Designer of Openwall for reporting this issue.
1979 *) In FIPS mode don't try to use composite ciphers as they are not
1983 Changes between 1.0.1a and 1.0.1b [26 Apr 2012]
1985 *) OpenSSL 1.0.0 sets SSL_OP_ALL to 0x80000FFFL and OpenSSL 1.0.1 and
1986 1.0.1a set SSL_OP_NO_TLSv1_1 to 0x00000400L which would unfortunately
1987 mean any application compiled against OpenSSL 1.0.0 headers setting
1988 SSL_OP_ALL would also set SSL_OP_NO_TLSv1_1, unintentionally disablng
1989 TLS 1.1 also. Fix this by changing the value of SSL_OP_NO_TLSv1_1 to
1990 0x10000000L Any application which was previously compiled against
1991 OpenSSL 1.0.1 or 1.0.1a headers and which cares about SSL_OP_NO_TLSv1_1
1992 will need to be recompiled as a result. Letting be results in
1993 inability to disable specifically TLS 1.1 and in client context,
1994 in unlike event, limit maximum offered version to TLS 1.0 [see below].
1997 *) In order to ensure interoperabilty SSL_OP_NO_protocolX does not
1998 disable just protocol X, but all protocols above X *if* there are
1999 protocols *below* X still enabled. In more practical terms it means
2000 that if application wants to disable TLS1.0 in favor of TLS1.1 and
2001 above, it's not sufficient to pass SSL_OP_NO_TLSv1, one has to pass
2002 SSL_OP_NO_TLSv1|SSL_OP_NO_SSLv3|SSL_OP_NO_SSLv2. This applies to
2006 Changes between 1.0.1 and 1.0.1a [19 Apr 2012]
2008 *) Check for potentially exploitable overflows in asn1_d2i_read_bio
2009 BUF_mem_grow and BUF_mem_grow_clean. Refuse attempts to shrink buffer
2010 in CRYPTO_realloc_clean.
2012 Thanks to Tavis Ormandy, Google Security Team, for discovering this
2013 issue and to Adam Langley <agl@chromium.org> for fixing it.
2015 [Adam Langley (Google), Tavis Ormandy, Google Security Team]
2017 *) Don't allow TLS 1.2 SHA-256 ciphersuites in TLS 1.0, 1.1 connections.
2020 *) Workarounds for some broken servers that "hang" if a client hello
2021 record length exceeds 255 bytes.
2023 1. Do not use record version number > TLS 1.0 in initial client
2024 hello: some (but not all) hanging servers will now work.
2025 2. If we set OPENSSL_MAX_TLS1_2_CIPHER_LENGTH this will truncate
2026 the number of ciphers sent in the client hello. This should be
2027 set to an even number, such as 50, for example by passing:
2028 -DOPENSSL_MAX_TLS1_2_CIPHER_LENGTH=50 to config or Configure.
2029 Most broken servers should now work.
2030 3. If all else fails setting OPENSSL_NO_TLS1_2_CLIENT will disable
2031 TLS 1.2 client support entirely.
2034 *) Fix SEGV in Vector Permutation AES module observed in OpenSSH.
2037 Changes between 1.0.0h and 1.0.1 [14 Mar 2012]
2039 *) Add compatibility with old MDC2 signatures which use an ASN1 OCTET
2040 STRING form instead of a DigestInfo.
2043 *) The format used for MDC2 RSA signatures is inconsistent between EVP
2044 and the RSA_sign/RSA_verify functions. This was made more apparent when
2045 OpenSSL used RSA_sign/RSA_verify for some RSA signatures in particular
2046 those which went through EVP_PKEY_METHOD in 1.0.0 and later. Detect
2047 the correct format in RSA_verify so both forms transparently work.
2050 *) Some servers which support TLS 1.0 can choke if we initially indicate
2051 support for TLS 1.2 and later renegotiate using TLS 1.0 in the RSA
2052 encrypted premaster secret. As a workaround use the maximum permitted
2053 client version in client hello, this should keep such servers happy
2054 and still work with previous versions of OpenSSL.
2057 *) Add support for TLS/DTLS heartbeats.
2058 [Robin Seggelmann <seggelmann@fh-muenster.de>]
2060 *) Add support for SCTP.
2061 [Robin Seggelmann <seggelmann@fh-muenster.de>]
2063 *) Improved PRNG seeding for VOS.
2064 [Paul Green <Paul.Green@stratus.com>]
2066 *) Extensive assembler packs updates, most notably:
2068 - x86[_64]: AES-NI, PCLMULQDQ, RDRAND support;
2069 - x86[_64]: SSSE3 support (SHA1, vector-permutation AES);
2070 - x86_64: bit-sliced AES implementation;
2071 - ARM: NEON support, contemporary platforms optimizations;
2072 - s390x: z196 support;
2073 - *: GHASH and GF(2^m) multiplication implementations;
2077 *) Make TLS-SRP code conformant with RFC 5054 API cleanup
2078 (removal of unnecessary code)
2079 [Peter Sylvester <peter.sylvester@edelweb.fr>]
2081 *) Add TLS key material exporter from RFC 5705.
2084 *) Add DTLS-SRTP negotiation from RFC 5764.
2087 *) Add Next Protocol Negotiation,
2088 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
2089 disabled with a no-npn flag to config or Configure. Code donated
2091 [Adam Langley <agl@google.com> and Ben Laurie]
2093 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
2094 NIST-P256, NIST-P521, with constant-time single point multiplication on
2095 typical inputs. Compiler support for the nonstandard type __uint128_t is
2096 required to use this (present in gcc 4.4 and later, for 64-bit builds).
2097 Code made available under Apache License version 2.0.
2099 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
2100 line to include this in your build of OpenSSL, and run "make depend" (or
2101 "make update"). This enables the following EC_METHODs:
2103 EC_GFp_nistp224_method()
2104 EC_GFp_nistp256_method()
2105 EC_GFp_nistp521_method()
2107 EC_GROUP_new_by_curve_name() will automatically use these (while
2108 EC_GROUP_new_curve_GFp() currently prefers the more flexible
2110 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
2112 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
2113 all platforms. Move ssize_t definition from e_os.h to the public
2114 header file e_os2.h as it now appears in public header file cms.h
2117 *) New -sigopt option to the ca, req and x509 utilities. Additional
2118 signature parameters can be passed using this option and in
2122 *) Add RSA PSS signing function. This will generate and set the
2123 appropriate AlgorithmIdentifiers for PSS based on those in the
2124 corresponding EVP_MD_CTX structure. No application support yet.
2127 *) Support for companion algorithm specific ASN1 signing routines.
2128 New function ASN1_item_sign_ctx() signs a pre-initialised
2129 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
2130 the appropriate parameters.
2133 *) Add new algorithm specific ASN1 verification initialisation function
2134 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
2135 handling will be the same no matter what EVP_PKEY_METHOD is used.
2136 Add a PSS handler to support verification of PSS signatures: checked
2137 against a number of sample certificates.
2140 *) Add signature printing for PSS. Add PSS OIDs.
2141 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
2143 *) Add algorithm specific signature printing. An individual ASN1 method
2144 can now print out signatures instead of the standard hex dump.
2146 More complex signatures (e.g. PSS) can print out more meaningful
2147 information. Include DSA version that prints out the signature
2151 *) Password based recipient info support for CMS library: implementing
2155 *) Split password based encryption into PBES2 and PBKDF2 functions. This
2156 neatly separates the code into cipher and PBE sections and is required
2157 for some algorithms that split PBES2 into separate pieces (such as
2158 password based CMS).
2161 *) Session-handling fixes:
2162 - Fix handling of connections that are resuming with a session ID,
2163 but also support Session Tickets.
2164 - Fix a bug that suppressed issuing of a new ticket if the client
2165 presented a ticket with an expired session.
2166 - Try to set the ticket lifetime hint to something reasonable.
2167 - Make tickets shorter by excluding irrelevant information.
2168 - On the client side, don't ignore renewed tickets.
2169 [Adam Langley, Bodo Moeller (Google)]
2171 *) Fix PSK session representation.
2174 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
2176 This work was sponsored by Intel.
2179 *) Add GCM support to TLS library. Some custom code is needed to split
2180 the IV between the fixed (from PRF) and explicit (from TLS record)
2181 portions. This adds all GCM ciphersuites supported by RFC5288 and
2182 RFC5289. Generalise some AES* cipherstrings to include GCM and
2183 add a special AESGCM string for GCM only.
2186 *) Expand range of ctrls for AES GCM. Permit setting invocation
2187 field on decrypt and retrieval of invocation field only on encrypt.
2190 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
2191 As required by RFC5289 these ciphersuites cannot be used if for
2192 versions of TLS earlier than 1.2.
2195 *) For FIPS capable OpenSSL interpret a NULL default public key method
2196 as unset and return the appropriate default but do *not* set the default.
2197 This means we can return the appropriate method in applications that
2198 switch between FIPS and non-FIPS modes.
2201 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
2202 ENGINE is used then we cannot handle that in the FIPS module so we
2203 keep original code iff non-FIPS operations are allowed.
2206 *) Add -attime option to openssl utilities.
2207 [Peter Eckersley <pde@eff.org>, Ben Laurie and Steve Henson]
2209 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
2212 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
2213 FIPS EC methods unconditionally for now.
2216 *) New build option no-ec2m to disable characteristic 2 code.
2219 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
2220 all cases can be covered as some introduce binary incompatibilities.
2223 *) Redirect RSA operations to FIPS module including keygen,
2224 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
2227 *) Add similar low level API blocking to ciphers.
2230 *) Low level digest APIs are not approved in FIPS mode: any attempt
2231 to use these will cause a fatal error. Applications that *really* want
2232 to use them can use the private_* version instead.
2235 *) Redirect cipher operations to FIPS module for FIPS builds.
2238 *) Redirect digest operations to FIPS module for FIPS builds.
2241 *) Update build system to add "fips" flag which will link in fipscanister.o
2242 for static and shared library builds embedding a signature if needed.
2245 *) Output TLS supported curves in preference order instead of numerical
2246 order. This is currently hardcoded for the highest order curves first.
2247 This should be configurable so applications can judge speed vs strength.
2250 *) Add TLS v1.2 server support for client authentication.
2253 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
2257 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
2258 FIPS modules versions.
2261 *) Add TLS v1.2 client side support for client authentication. Keep cache
2262 of handshake records longer as we don't know the hash algorithm to use
2263 until after the certificate request message is received.
2266 *) Initial TLS v1.2 client support. Add a default signature algorithms
2267 extension including all the algorithms we support. Parse new signature
2268 format in client key exchange. Relax some ECC signing restrictions for
2269 TLS v1.2 as indicated in RFC5246.
2272 *) Add server support for TLS v1.2 signature algorithms extension. Switch
2273 to new signature format when needed using client digest preference.
2274 All server ciphersuites should now work correctly in TLS v1.2. No client
2275 support yet and no support for client certificates.
2278 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
2279 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
2280 ciphersuites. At present only RSA key exchange ciphersuites work with
2281 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
2282 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
2283 and version checking.
2286 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
2287 with this defined it will not be affected by any changes to ssl internal
2288 structures. Add several utility functions to allow openssl application
2289 to work with OPENSSL_NO_SSL_INTERN defined.
2293 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
2295 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
2298 *) Permit abbreviated handshakes when renegotiating using the function
2299 SSL_renegotiate_abbreviated().
2300 [Robin Seggelmann <seggelmann@fh-muenster.de>]
2302 *) Add call to ENGINE_register_all_complete() to
2303 ENGINE_load_builtin_engines(), so some implementations get used
2304 automatically instead of needing explicit application support.
2307 *) Add support for TLS key exporter as described in RFC5705.
2308 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
2310 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
2311 a few changes are required:
2313 Add SSL_OP_NO_TLSv1_1 flag.
2314 Add TLSv1_1 methods.
2315 Update version checking logic to handle version 1.1.
2316 Add explicit IV handling (ported from DTLS code).
2317 Add command line options to s_client/s_server.
2320 Changes between 1.0.0g and 1.0.0h [12 Mar 2012]
2322 *) Fix MMA (Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) weakness
2323 in CMS and PKCS7 code. When RSA decryption fails use a random key for
2324 content decryption and always return the same error. Note: this attack
2325 needs on average 2^20 messages so it only affects automated senders. The
2326 old behaviour can be reenabled in the CMS code by setting the
2327 CMS_DEBUG_DECRYPT flag: this is useful for debugging and testing where
2328 an MMA defence is not necessary.
2329 Thanks to Ivan Nestlerode <inestlerode@us.ibm.com> for discovering
2330 this issue. (CVE-2012-0884)
2333 *) Fix CVE-2011-4619: make sure we really are receiving a
2334 client hello before rejecting multiple SGC restarts. Thanks to
2335 Ivan Nestlerode <inestlerode@us.ibm.com> for discovering this bug.
2338 Changes between 1.0.0f and 1.0.0g [18 Jan 2012]
2340 *) Fix for DTLS DoS issue introduced by fix for CVE-2011-4109.
2341 Thanks to Antonio Martin, Enterprise Secure Access Research and
2342 Development, Cisco Systems, Inc. for discovering this bug and
2343 preparing a fix. (CVE-2012-0050)
2346 Changes between 1.0.0e and 1.0.0f [4 Jan 2012]
2348 *) Nadhem Alfardan and Kenny Paterson have discovered an extension
2349 of the Vaudenay padding oracle attack on CBC mode encryption
2350 which enables an efficient plaintext recovery attack against
2351 the OpenSSL implementation of DTLS. Their attack exploits timing
2352 differences arising during decryption processing. A research
2353 paper describing this attack can be found at:
2354 http://www.isg.rhul.ac.uk/~kp/dtls.pdf
2355 Thanks go to Nadhem Alfardan and Kenny Paterson of the Information
2356 Security Group at Royal Holloway, University of London
2357 (www.isg.rhul.ac.uk) for discovering this flaw and to Robin Seggelmann
2358 <seggelmann@fh-muenster.de> and Michael Tuexen <tuexen@fh-muenster.de>
2359 for preparing the fix. (CVE-2011-4108)
2360 [Robin Seggelmann, Michael Tuexen]
2362 *) Clear bytes used for block padding of SSL 3.0 records.
2364 [Adam Langley (Google)]
2366 *) Only allow one SGC handshake restart for SSL/TLS. Thanks to George
2367 Kadianakis <desnacked@gmail.com> for discovering this issue and
2368 Adam Langley for preparing the fix. (CVE-2011-4619)
2369 [Adam Langley (Google)]
2371 *) Check parameters are not NULL in GOST ENGINE. (CVE-2012-0027)
2372 [Andrey Kulikov <amdeich@gmail.com>]
2374 *) Prevent malformed RFC3779 data triggering an assertion failure.
2375 Thanks to Andrew Chi, BBN Technologies, for discovering the flaw
2376 and Rob Austein <sra@hactrn.net> for fixing it. (CVE-2011-4577)
2377 [Rob Austein <sra@hactrn.net>]
2379 *) Improved PRNG seeding for VOS.
2380 [Paul Green <Paul.Green@stratus.com>]
2382 *) Fix ssl_ciph.c set-up race.
2383 [Adam Langley (Google)]
2385 *) Fix spurious failures in ecdsatest.c.
2386 [Emilia Käsper (Google)]
2388 *) Fix the BIO_f_buffer() implementation (which was mixing different
2389 interpretations of the '..._len' fields).
2390 [Adam Langley (Google)]
2392 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
2393 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
2394 threads won't reuse the same blinding coefficients.
2396 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
2397 lock to call BN_BLINDING_invert_ex, and avoids one use of
2398 BN_BLINDING_update for each BN_BLINDING structure (previously,
2399 the last update always remained unused).
2400 [Emilia Käsper (Google)]
2402 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
2403 [Bob Buckholz (Google)]
2405 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
2407 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
2408 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
2409 [Kaspar Brand <ossl@velox.ch>]
2411 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
2412 for multi-threaded use of ECDH. (CVE-2011-3210)
2413 [Adam Langley (Google)]
2415 *) Fix x509_name_ex_d2i memory leak on bad inputs.
2418 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
2419 signature public key algorithm by using OID xref utilities instead.
2420 Before this you could only use some ECC ciphersuites with SHA1 only.
2423 *) Add protection against ECDSA timing attacks as mentioned in the paper
2424 by Billy Bob Brumley and Nicola Tuveri, see:
2426 http://eprint.iacr.org/2011/232.pdf
2428 [Billy Bob Brumley and Nicola Tuveri]
2430 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
2432 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
2433 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
2435 *) Fix bug in string printing code: if *any* escaping is enabled we must
2436 escape the escape character (backslash) or the resulting string is
2440 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
2442 *) Disable code workaround for ancient and obsolete Netscape browsers
2443 and servers: an attacker can use it in a ciphersuite downgrade attack.
2444 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
2447 *) Fixed J-PAKE implementation error, originally discovered by
2448 Sebastien Martini, further info and confirmation from Stefan
2449 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
2452 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
2454 *) Fix extension code to avoid race conditions which can result in a buffer
2455 overrun vulnerability: resumed sessions must not be modified as they can
2456 be shared by multiple threads. CVE-2010-3864
2459 *) Fix WIN32 build system to correctly link an ENGINE directory into
2463 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
2465 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
2467 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
2469 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
2471 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
2472 context. The operation can be customised via the ctrl mechanism in
2473 case ENGINEs want to include additional functionality.
2476 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
2479 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
2480 output hashes compatible with older versions of OpenSSL.
2481 [Willy Weisz <weisz@vcpc.univie.ac.at>]
2483 *) Fix compression algorithm handling: if resuming a session use the
2484 compression algorithm of the resumed session instead of determining
2485 it from client hello again. Don't allow server to change algorithm.
2488 *) Add load_crls() function to apps tidying load_certs() too. Add option
2489 to verify utility to allow additional CRLs to be included.
2492 *) Update OCSP request code to permit adding custom headers to the request:
2493 some responders need this.
2496 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
2498 [Julia Lawall <julia@diku.dk>]
2500 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
2501 needlessly dereferenced structures, used obsolete functions and
2502 didn't handle all updated verify codes correctly.
2505 *) Disable MD2 in the default configuration.
2508 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
2509 indicate the initial BIO being pushed or popped. This makes it possible
2510 to determine whether the BIO is the one explicitly called or as a result
2511 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
2512 it handles reference counts correctly and doesn't zero out the I/O bio
2513 when it is not being explicitly popped. WARNING: applications which
2514 included workarounds for the old buggy behaviour will need to be modified
2515 or they could free up already freed BIOs.
2518 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
2519 renaming to all platforms (within the 0.9.8 branch, this was
2520 done conditionally on Netware platforms to avoid a name clash).
2521 [Guenter <lists@gknw.net>]
2523 *) Add ECDHE and PSK support to DTLS.
2524 [Michael Tuexen <tuexen@fh-muenster.de>]
2526 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
2530 *) Add "missing" function EVP_MD_flags() (without this the only way to
2531 retrieve a digest flags is by accessing the structure directly. Update
2532 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
2533 or cipher is registered as in the "from" argument. Print out all
2534 registered digests in the dgst usage message instead of manually
2535 attempting to work them out.
2538 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
2539 this allows the use of compression and extensions. Change default cipher
2540 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
2541 by default unless an application cipher string requests it.
2544 *) Alter match criteria in PKCS12_parse(). It used to try to use local
2545 key ids to find matching certificates and keys but some PKCS#12 files
2546 don't follow the (somewhat unwritten) rules and this strategy fails.
2547 Now just gather all certificates together and the first private key
2548 then look for the first certificate that matches the key.
2551 *) Support use of registered digest and cipher names for dgst and cipher
2552 commands instead of having to add each one as a special case. So now
2559 openssl dgst -sha256 foo
2561 and this works for ENGINE based algorithms too.
2565 *) Update Gost ENGINE to support parameter files.
2566 [Victor B. Wagner <vitus@cryptocom.ru>]
2568 *) Support GeneralizedTime in ca utility.
2569 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
2571 *) Enhance the hash format used for certificate directory links. The new
2572 form uses the canonical encoding (meaning equivalent names will work
2573 even if they aren't identical) and uses SHA1 instead of MD5. This form
2574 is incompatible with the older format and as a result c_rehash should
2575 be used to rebuild symbolic links.
2578 *) Make PKCS#8 the default write format for private keys, replacing the
2579 traditional format. This form is standardised, more secure and doesn't
2580 include an implicit MD5 dependency.
2583 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
2584 committed to OpenSSL should pass this lot as a minimum.
2587 *) Add session ticket override functionality for use by EAP-FAST.
2588 [Jouni Malinen <j@w1.fi>]
2590 *) Modify HMAC functions to return a value. Since these can be implemented
2591 in an ENGINE errors can occur.
2594 *) Type-checked OBJ_bsearch_ex.
2597 *) Type-checked OBJ_bsearch. Also some constification necessitated
2598 by type-checking. Still to come: TXT_DB, bsearch(?),
2599 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
2603 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
2604 seconds to a tm structure directly, instead of going through OS
2605 specific date routines. This avoids any issues with OS routines such
2606 as the year 2038 bug. New *_adj() functions for ASN1 time structures
2607 and X509_time_adj_ex() to cover the extended range. The existing
2608 X509_time_adj() is still usable and will no longer have any date issues.
2611 *) Delta CRL support. New use deltas option which will attempt to locate
2612 and search any appropriate delta CRLs available.
2614 This work was sponsored by Google.
2617 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
2618 code and add additional score elements. Validate alternate CRL paths
2619 as part of the CRL checking and indicate a new error "CRL path validation
2620 error" in this case. Applications wanting additional details can use
2621 the verify callback and check the new "parent" field. If this is not
2622 NULL CRL path validation is taking place. Existing applications wont
2623 see this because it requires extended CRL support which is off by
2626 This work was sponsored by Google.
2629 *) Support for freshest CRL extension.
2631 This work was sponsored by Google.
2634 *) Initial indirect CRL support. Currently only supported in the CRLs
2635 passed directly and not via lookup. Process certificate issuer
2636 CRL entry extension and lookup CRL entries by bother issuer name
2637 and serial number. Check and process CRL issuer entry in IDP extension.
2639 This work was sponsored by Google.
2642 *) Add support for distinct certificate and CRL paths. The CRL issuer
2643 certificate is validated separately in this case. Only enabled if
2644 an extended CRL support flag is set: this flag will enable additional
2645 CRL functionality in future.
2647 This work was sponsored by Google.
2650 *) Add support for policy mappings extension.
2652 This work was sponsored by Google.
2655 *) Fixes to pathlength constraint, self issued certificate handling,
2656 policy processing to align with RFC3280 and PKITS tests.
2658 This work was sponsored by Google.
2661 *) Support for name constraints certificate extension. DN, email, DNS
2662 and URI types are currently supported.
2664 This work was sponsored by Google.
2667 *) To cater for systems that provide a pointer-based thread ID rather
2668 than numeric, deprecate the current numeric thread ID mechanism and
2669 replace it with a structure and associated callback type. This
2670 mechanism allows a numeric "hash" to be extracted from a thread ID in
2671 either case, and on platforms where pointers are larger than 'long',
2672 mixing is done to help ensure the numeric 'hash' is usable even if it
2673 can't be guaranteed unique. The default mechanism is to use "&errno"
2674 as a pointer-based thread ID to distinguish between threads.
2676 Applications that want to provide their own thread IDs should now use
2677 CRYPTO_THREADID_set_callback() to register a callback that will call
2678 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
2680 Note that ERR_remove_state() is now deprecated, because it is tied
2681 to the assumption that thread IDs are numeric. ERR_remove_state(0)
2682 to free the current thread's error state should be replaced by
2683 ERR_remove_thread_state(NULL).
2685 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
2686 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
2687 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
2688 application was previously providing a numeric thread callback that
2689 was inappropriate for distinguishing threads, then uniqueness might
2690 have been obtained with &errno that happened immediately in the
2691 intermediate development versions of OpenSSL; this is no longer the
2692 case, the numeric thread callback will now override the automatic use
2694 [Geoff Thorpe, with help from Bodo Moeller]
2696 *) Initial support for different CRL issuing certificates. This covers a
2697 simple case where the self issued certificates in the chain exist and
2698 the real CRL issuer is higher in the existing chain.
2700 This work was sponsored by Google.
2703 *) Removed effectively defunct crypto/store from the build.
2706 *) Revamp of STACK to provide stronger type-checking. Still to come:
2707 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
2708 ASN1_STRING, CONF_VALUE.
2711 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
2712 RAM on SSL connections. This option can save about 34k per idle SSL.
2715 *) Revamp of LHASH to provide stronger type-checking. Still to come:
2716 STACK, TXT_DB, bsearch, qsort.
2719 *) Initial support for Cryptographic Message Syntax (aka CMS) based
2720 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
2721 support for data, signedData, compressedData, digestedData and
2722 encryptedData, envelopedData types included. Scripts to check against
2723 RFC4134 examples draft and interop and consistency checks of many
2724 content types and variants.
2727 *) Add options to enc utility to support use of zlib compression BIO.
2730 *) Extend mk1mf to support importing of options and assembly language
2731 files from Configure script, currently only included in VC-WIN32.
2732 The assembly language rules can now optionally generate the source
2733 files from the associated perl scripts.
2736 *) Implement remaining functionality needed to support GOST ciphersuites.
2737 Interop testing has been performed using CryptoPro implementations.
2738 [Victor B. Wagner <vitus@cryptocom.ru>]
2740 *) s390x assembler pack.
2743 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
2747 *) Implement Opaque PRF Input TLS extension as specified in
2748 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
2749 official specification yet and no extension type assignment by
2750 IANA exists, this extension (for now) will have to be explicitly
2751 enabled when building OpenSSL by providing the extension number
2752 to use. For example, specify an option
2754 -DTLSEXT_TYPE_opaque_prf_input=0x9527
2756 to the "config" or "Configure" script to enable the extension,
2757 assuming extension number 0x9527 (which is a completely arbitrary
2758 and unofficial assignment based on the MD5 hash of the Internet
2759 Draft). Note that by doing so, you potentially lose
2760 interoperability with other TLS implementations since these might
2761 be using the same extension number for other purposes.
2763 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
2764 opaque PRF input value to use in the handshake. This will create
2765 an interal copy of the length-'len' string at 'src', and will
2766 return non-zero for success.
2768 To get more control and flexibility, provide a callback function
2771 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
2772 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
2776 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
2779 Callback function 'cb' will be called in handshakes, and is
2780 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
2781 Argument 'arg' is for application purposes (the value as given to
2782 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
2783 be provided to the callback function). The callback function
2784 has to return non-zero to report success: usually 1 to use opaque
2785 PRF input just if possible, or 2 to enforce use of the opaque PRF
2786 input. In the latter case, the library will abort the handshake
2787 if opaque PRF input is not successfully negotiated.
2789 Arguments 'peerinput' and 'len' given to the callback function
2790 will always be NULL and 0 in the case of a client. A server will
2791 see the client's opaque PRF input through these variables if
2792 available (NULL and 0 otherwise). Note that if the server
2793 provides an opaque PRF input, the length must be the same as the
2794 length of the client's opaque PRF input.
2796 Note that the callback function will only be called when creating
2797 a new session (session resumption can resume whatever was
2798 previously negotiated), and will not be called in SSL 2.0
2799 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
2800 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
2801 for applications that need to enforce opaque PRF input.
2805 *) Update ssl code to support digests other than SHA1+MD5 for handshake
2808 [Victor B. Wagner <vitus@cryptocom.ru>]
2810 *) Add RFC4507 support to OpenSSL. This includes the corrections in
2811 RFC4507bis. The encrypted ticket format is an encrypted encoded
2812 SSL_SESSION structure, that way new session features are automatically
2815 If a client application caches session in an SSL_SESSION structure
2816 support is transparent because tickets are now stored in the encoded
2819 The SSL_CTX structure automatically generates keys for ticket
2820 protection in servers so again support should be possible
2821 with no application modification.
2823 If a client or server wishes to disable RFC4507 support then the option
2824 SSL_OP_NO_TICKET can be set.
2826 Add a TLS extension debugging callback to allow the contents of any client
2827 or server extensions to be examined.
2829 This work was sponsored by Google.
2832 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
2833 OpenSSL should now compile cleanly on gcc 4.2
2834 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
2836 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
2837 support including streaming MAC support: this is required for GOST
2838 ciphersuite support.
2839 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
2841 *) Add option -stream to use PKCS#7 streaming in smime utility. New
2842 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
2843 to output in BER and PEM format.
2846 *) Experimental support for use of HMAC via EVP_PKEY interface. This
2847 allows HMAC to be handled via the EVP_DigestSign*() interface. The
2848 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
2849 ENGINE support for HMAC keys which are unextractable. New -mac and
2850 -macopt options to dgst utility.
2853 *) New option -sigopt to dgst utility. Update dgst to use
2854 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
2855 alternative signing parameters such as X9.31 or PSS in the dgst
2859 *) Change ssl_cipher_apply_rule(), the internal function that does
2860 the work each time a ciphersuite string requests enabling
2861 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
2862 removing ("!foo+bar") a class of ciphersuites: Now it maintains
2863 the order of disabled ciphersuites such that those ciphersuites
2864 that most recently went from enabled to disabled not only stay
2865 in order with respect to each other, but also have higher priority
2866 than other disabled ciphersuites the next time ciphersuites are
2869 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
2870 the same ciphersuites as with "HIGH" alone, but in a specific
2871 order where the PSK ciphersuites come first (since they are the
2872 most recently disabled ciphersuites when "HIGH" is parsed).
2874 Also, change ssl_create_cipher_list() (using this new
2875 funcionality) such that between otherwise identical
2876 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
2880 *) Change ssl_create_cipher_list() so that it automatically
2881 arranges the ciphersuites in reasonable order before starting
2882 to process the rule string. Thus, the definition for "DEFAULT"
2883 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
2884 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
2885 This makes it much easier to arrive at a reasonable default order
2886 in applications for which anonymous ciphers are OK (meaning
2887 that you can't actually use DEFAULT).
2888 [Bodo Moeller; suggested by Victor Duchovni]
2890 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
2891 processing) into multiple integers instead of setting
2892 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
2893 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
2894 (These masks as well as the individual bit definitions are hidden
2895 away into the non-exported interface ssl/ssl_locl.h, so this
2896 change to the definition of the SSL_CIPHER structure shouldn't
2897 affect applications.) This give us more bits for each of these
2898 categories, so there is no longer a need to coagulate AES128 and
2899 AES256 into a single algorithm bit, and to coagulate Camellia128
2900 and Camellia256 into a single algorithm bit, which has led to all
2903 Thus, among other things, the kludge introduced in 0.9.7m and
2904 0.9.8e for masking out AES256 independently of AES128 or masking
2905 out Camellia256 independently of AES256 is not needed here in 0.9.9.
2907 With the change, we also introduce new ciphersuite aliases that
2908 so far were missing: "AES128", "AES256", "CAMELLIA128", and
2912 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
2913 Use the leftmost N bytes of the signature input if the input is
2914 larger than the prime q (with N being the size in bytes of q).
2917 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
2918 it yet and it is largely untested.
2921 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
2924 *) Initial incomplete changes to avoid need for function casts in OpenSSL
2925 some compilers (gcc 4.2 and later) reject their use. Safestack is
2926 reimplemented. Update ASN1 to avoid use of legacy functions.
2929 *) Win32/64 targets are linked with Winsock2.
2932 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
2933 to external functions. This can be used to increase CRL handling
2934 efficiency especially when CRLs are very large by (for example) storing
2935 the CRL revoked certificates in a database.
2938 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
2939 new CRLs added to a directory can be used. New command line option
2940 -verify_return_error to s_client and s_server. This causes real errors
2941 to be returned by the verify callback instead of carrying on no matter
2942 what. This reflects the way a "real world" verify callback would behave.
2945 *) GOST engine, supporting several GOST algorithms and public key formats.
2946 Kindly donated by Cryptocom.
2949 *) Partial support for Issuing Distribution Point CRL extension. CRLs
2950 partitioned by DP are handled but no indirect CRL or reason partitioning
2951 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
2952 selected via a scoring technique which handles IDP and AKID in CRLs.
2955 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
2956 will ultimately be used for all verify operations: this will remove the
2957 X509_STORE dependency on certificate verification and allow alternative
2958 lookup methods. X509_STORE based implementations of these two callbacks.
2961 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
2962 Modify get_crl() to find a valid (unexpired) CRL if possible.
2965 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
2966 this would be called X509_CRL_cmp() but that name is already used by
2967 a function that just compares CRL issuer names. Cache several CRL
2968 extensions in X509_CRL structure and cache CRLDP in X509.
2971 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
2972 this maps equivalent X509_NAME structures into a consistent structure.
2973 Name comparison can then be performed rapidly using memcmp().
2976 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
2980 *) Allow digests to supply their own micalg string for S/MIME type using
2981 the ctrl EVP_MD_CTRL_MICALG.
2984 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
2985 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
2986 ctrl. It can then customise the structure before and/or after signing
2990 *) New function OBJ_add_sigid() to allow application defined signature OIDs
2991 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
2992 to free up any added signature OIDs.
2995 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
2996 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
2997 digest and cipher tables. New options added to openssl utility:
2998 list-message-digest-algorithms and list-cipher-algorithms.
3001 *) Change the array representation of binary polynomials: the list
3002 of degrees of non-zero coefficients is now terminated with -1.
3003 Previously it was terminated with 0, which was also part of the
3004 value; thus, the array representation was not applicable to
3005 polynomials where t^0 has coefficient zero. This change makes
3006 the array representation useful in a more general context.
3009 *) Various modifications and fixes to SSL/TLS cipher string
3010 handling. For ECC, the code now distinguishes between fixed ECDH
3011 with RSA certificates on the one hand and with ECDSA certificates
3012 on the other hand, since these are separate ciphersuites. The
3013 unused code for Fortezza ciphersuites has been removed.
3015 For consistency with EDH, ephemeral ECDH is now called "EECDH"
3016 (not "ECDHE"). For consistency with the code for DH
3017 certificates, use of ECDH certificates is now considered ECDH
3018 authentication, not RSA or ECDSA authentication (the latter is
3019 merely the CA's signing algorithm and not actively used in the
3022 The temporary ciphersuite alias "ECCdraft" is no longer
3023 available, and ECC ciphersuites are no longer excluded from "ALL"
3024 and "DEFAULT". The following aliases now exist for RFC 4492
3025 ciphersuites, most of these by analogy with the DH case:
3027 kECDHr - ECDH cert, signed with RSA
3028 kECDHe - ECDH cert, signed with ECDSA
3029 kECDH - ECDH cert (signed with either RSA or ECDSA)
3030 kEECDH - ephemeral ECDH
3031 ECDH - ECDH cert or ephemeral ECDH
3037 AECDH - anonymous ECDH
3038 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
3042 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
3043 Use correct micalg parameters depending on digest(s) in signed message.
3046 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
3047 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
3050 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
3051 an engine to register a method. Add ENGINE lookups for methods and
3052 functional reference processing.
3055 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
3056 EVP_{Sign,Verify}* which allow an application to customise the signature
3060 *) New -resign option to smime utility. This adds one or more signers
3061 to an existing PKCS#7 signedData structure. Also -md option to use an
3062 alternative message digest algorithm for signing.
3065 *) Tidy up PKCS#7 routines and add new functions to make it easier to
3066 create PKCS7 structures containing multiple signers. Update smime
3067 application to support multiple signers.
3070 *) New -macalg option to pkcs12 utility to allow setting of an alternative
3074 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
3075 Reorganize PBE internals to lookup from a static table using NIDs,
3076 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
3077 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
3078 PRF which will be automatically used with PBES2.
3081 *) Replace the algorithm specific calls to generate keys in "req" with the
3085 *) Update PKCS#7 enveloped data routines to use new API. This is now
3086 supported by any public key method supporting the encrypt operation. A
3087 ctrl is added to allow the public key algorithm to examine or modify
3088 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
3092 *) Add a ctrl to asn1 method to allow a public key algorithm to express
3093 a default digest type to use. In most cases this will be SHA1 but some
3094 algorithms (such as GOST) need to specify an alternative digest. The
3095 return value indicates how strong the preference is 1 means optional and
3096 2 is mandatory (that is it is the only supported type). Modify
3097 ASN1_item_sign() to accept a NULL digest argument to indicate it should
3098 use the default md. Update openssl utilities to use the default digest
3099 type for signing if it is not explicitly indicated.
3102 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
3103 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
3104 signing method from the key type. This effectively removes the link
3105 between digests and public key types.
3108 *) Add an OID cross reference table and utility functions. Its purpose is to
3109 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
3110 rsaEncryption. This will allow some of the algorithm specific hackery
3111 needed to use the correct OID to be removed.
3114 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
3115 structures for PKCS7_sign(). They are now set up by the relevant public
3119 *) Add provisional EC pkey method with support for ECDSA and ECDH.
3122 *) Add support for key derivation (agreement) in the API, DH method and
3126 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
3127 public and private key formats. As a side effect these add additional
3128 command line functionality not previously available: DSA signatures can be
3129 generated and verified using pkeyutl and DH key support and generation in
3134 [Oliver Tappe <zooey@hirschkaefer.de>]
3136 *) New make target "install_html_docs" installs HTML renditions of the
3138 [Oliver Tappe <zooey@hirschkaefer.de>]
3140 *) New utility "genpkey" this is analogous to "genrsa" etc except it can
3141 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
3142 support key and parameter generation and add initial key generation
3143 functionality for RSA.
3146 *) Add functions for main EVP_PKEY_method operations. The undocumented
3147 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
3148 EVP_PKEY_{encrypt,decrypt}_old.
3151 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
3152 key API, doesn't do much yet.
3155 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
3156 public key algorithms. New option to openssl utility:
3157 "list-public-key-algorithms" to print out info.
3160 *) Implement the Supported Elliptic Curves Extension for
3161 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
3164 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
3165 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
3168 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
3169 utilities such as rsa, dsa, dsaparam etc except they process any key
3173 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
3174 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
3175 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
3179 *) Initial support for pluggable public key ASN1.
3180 De-spaghettify the public key ASN1 handling. Move public and private
3181 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
3182 algorithm specific handling to a single module within the relevant
3183 algorithm directory. Add functions to allow (near) opaque processing
3184 of public and private key structures.
3187 *) Implement the Supported Point Formats Extension for
3188 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
3191 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
3192 for the psk identity [hint] and the psk callback functions to the
3193 SSL_SESSION, SSL and SSL_CTX structure.
3196 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
3200 SSL_CTX_use_psk_identity_hint
3201 SSL_get_psk_identity_hint
3202 SSL_get_psk_identity
3203 SSL_use_psk_identity_hint
3205 [Mika Kousa and Pasi Eronen of Nokia Corporation]
3207 *) Add RFC 3161 compliant time stamp request creation, response generation
3208 and response verification functionality.
3209 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
3211 *) Add initial support for TLS extensions, specifically for the server_name
3212 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
3213 have new members for a host name. The SSL data structure has an
3214 additional member SSL_CTX *initial_ctx so that new sessions can be
3215 stored in that context to allow for session resumption, even after the
3216 SSL has been switched to a new SSL_CTX in reaction to a client's
3217 server_name extension.
3219 New functions (subject to change):
3221 SSL_get_servername()
3222 SSL_get_servername_type()
3225 New CTRL codes and macros (subject to change):
3227 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
3228 - SSL_CTX_set_tlsext_servername_callback()
3229 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
3230 - SSL_CTX_set_tlsext_servername_arg()
3231 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
3233 openssl s_client has a new '-servername ...' option.
3235 openssl s_server has new options '-servername_host ...', '-cert2 ...',
3236 '-key2 ...', '-servername_fatal' (subject to change). This allows
3237 testing the HostName extension for a specific single host name ('-cert'
3238 and '-key' remain fallbacks for handshakes without HostName
3239 negotiation). If the unrecognized_name alert has to be sent, this by
3240 default is a warning; it becomes fatal with the '-servername_fatal'
3243 [Peter Sylvester, Remy Allais, Christophe Renou]
3245 *) Whirlpool hash implementation is added.
3248 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
3249 bn(64,32). Because of instruction set limitations it doesn't have
3250 any negative impact on performance. This was done mostly in order
3251 to make it possible to share assembler modules, such as bn_mul_mont
3252 implementations, between 32- and 64-bit builds without hassle.
3255 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
3256 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
3260 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
3261 dedicated Montgomery multiplication procedure, is introduced.
3262 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
3263 "64-bit" performance on certain 32-bit targets.
3266 *) New option SSL_OP_NO_COMP to disable use of compression selectively
3267 in SSL structures. New SSL ctrl to set maximum send fragment size.
3268 Save memory by seeting the I/O buffer sizes dynamically instead of
3269 using the maximum available value.
3272 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
3273 in addition to the text details.
3276 *) Very, very preliminary EXPERIMENTAL support for printing of general
3277 ASN1 structures. This currently produces rather ugly output and doesn't
3278 handle several customised structures at all.
3281 *) Integrated support for PVK file format and some related formats such
3282 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
3283 these in the 'rsa' and 'dsa' utilities.
3286 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
3289 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
3290 place for the (very old) "NETSCAPE" format certificates which are now
3291 handled using new ASN1 code equivalents.
3294 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
3295 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
3296 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
3299 *) Modify CRL distribution points extension code to print out previously
3300 unsupported fields. Enhance extension setting code to allow setting of
3304 *) Add print and set support for Issuing Distribution Point CRL extension.
3307 *) Change 'Configure' script to enable Camellia by default.
3310 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
3312 *) When rejecting SSL/TLS records due to an incorrect version number, never
3313 update s->server with a new major version number. As of
3314 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
3315 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
3316 the previous behavior could result in a read attempt at NULL when
3317 receiving specific incorrect SSL/TLS records once record payload
3318 protection is active. (CVE-2010-0740)
3319 [Bodo Moeller, Adam Langley <agl@chromium.org>]
3321 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
3322 could be crashed if the relevant tables were not present (e.g. chrooted).
3323 [Tomas Hoger <thoger@redhat.com>]
3325 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
3327 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
3328 [Martin Olsson, Neel Mehta]
3330 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
3331 accommodate for stack sorting, always a write lock!).
3334 *) On some versions of WIN32 Heap32Next is very slow. This can cause
3335 excessive delays in the RAND_poll(): over a minute. As a workaround
3336 include a time check in the inner Heap32Next loop too.
3339 *) The code that handled flushing of data in SSL/TLS originally used the
3340 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
3341 the problem outlined in PR#1949. The fix suggested there however can
3342 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
3343 of Apache). So instead simplify the code to flush unconditionally.
3344 This should be fine since flushing with no data to flush is a no op.
3347 *) Handle TLS versions 2.0 and later properly and correctly use the
3348 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
3349 off ancient servers have a habit of sticking around for a while...
3352 *) Modify compression code so it frees up structures without using the
3353 ex_data callbacks. This works around a problem where some applications
3354 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
3355 restarting) then use compression (e.g. SSL with compression) later.
3356 This results in significant per-connection memory leaks and
3357 has caused some security issues including CVE-2008-1678 and
3361 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
3362 change when encrypting or decrypting.
3365 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
3366 connect and renegotiate with servers which do not support RI.
3367 Until RI is more widely deployed this option is enabled by default.
3370 *) Add "missing" ssl ctrls to clear options and mode.
3373 *) If client attempts to renegotiate and doesn't support RI respond with
3374 a no_renegotiation alert as required by RFC5746. Some renegotiating
3375 TLS clients will continue a connection gracefully when they receive
3376 the alert. Unfortunately OpenSSL mishandled this alert and would hang
3377 waiting for a server hello which it will never receive. Now we treat a
3378 received no_renegotiation alert as a fatal error. This is because
3379 applications requesting a renegotiation might well expect it to succeed
3380 and would have no code in place to handle the server denying it so the
3381 only safe thing to do is to terminate the connection.
3384 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
3385 peer supports secure renegotiation and 0 otherwise. Print out peer
3386 renegotiation support in s_client/s_server.
3389 *) Replace the highly broken and deprecated SPKAC certification method with
3390 the updated NID creation version. This should correctly handle UTF8.
3393 *) Implement RFC5746. Re-enable renegotiation but require the extension
3394 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
3395 turns out to be a bad idea. It has been replaced by
3396 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
3397 SSL_CTX_set_options(). This is really not recommended unless you
3398 know what you are doing.
3399 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
3401 *) Fixes to stateless session resumption handling. Use initial_ctx when
3402 issuing and attempting to decrypt tickets in case it has changed during
3403 servername handling. Use a non-zero length session ID when attempting
3404 stateless session resumption: this makes it possible to determine if
3405 a resumption has occurred immediately after receiving server hello
3406 (several places in OpenSSL subtly assume this) instead of later in
3410 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
3411 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
3412 fixes for a few places where the return code is not checked
3414 [Julia Lawall <julia@diku.dk>]
3416 *) Add --strict-warnings option to Configure script to include devteam
3417 warnings in other configurations.
3420 *) Add support for --libdir option and LIBDIR variable in makefiles. This
3421 makes it possible to install openssl libraries in locations which
3422 have names other than "lib", for example "/usr/lib64" which some
3424 [Steve Henson, based on patch from Jeremy Utley]
3426 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
3427 X690 8.9.12 and can produce some misleading textual output of OIDs.
3428 [Steve Henson, reported by Dan Kaminsky]
3430 *) Delete MD2 from algorithm tables. This follows the recommendation in
3431 several standards that it is not used in new applications due to
3432 several cryptographic weaknesses. For binary compatibility reasons
3433 the MD2 API is still compiled in by default.
3436 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
3440 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
3441 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
3443 [Guenter <lists@gknw.net>]
3445 *) Fix the server certificate chain building code to use X509_verify_cert(),
3446 it used to have an ad-hoc builder which was unable to cope with anything
3447 other than a simple chain.
3448 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
3450 *) Don't check self signed certificate signatures in X509_verify_cert()
3451 by default (a flag can override this): it just wastes time without
3452 adding any security. As a useful side effect self signed root CAs
3453 with non-FIPS digests are now usable in FIPS mode.
3456 *) In dtls1_process_out_of_seq_message() the check if the current message
3457 is already buffered was missing. For every new message was memory
3458 allocated, allowing an attacker to perform an denial of service attack
3459 with sending out of seq handshake messages until there is no memory
3460 left. Additionally every future messege was buffered, even if the
3461 sequence number made no sense and would be part of another handshake.
3462 So only messages with sequence numbers less than 10 in advance will be
3463 buffered. (CVE-2009-1378)
3464 [Robin Seggelmann, discovered by Daniel Mentz]
3466 *) Records are buffered if they arrive with a future epoch to be
3467 processed after finishing the corresponding handshake. There is
3468 currently no limitation to this buffer allowing an attacker to perform
3469 a DOS attack with sending records with future epochs until there is no
3470 memory left. This patch adds the pqueue_size() function to determine
3471 the size of a buffer and limits the record buffer to 100 entries.
3473 [Robin Seggelmann, discovered by Daniel Mentz]
3475 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
3476 parent structure is freed. (CVE-2009-1379)
3479 *) Handle non-blocking I/O properly in SSL_shutdown() call.
3480 [Darryl Miles <darryl-mailinglists@netbauds.net>]
3483 [Ilya O. <vrghost@gmail.com>]
3485 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
3487 *) Disable renegotiation completely - this fixes a severe security
3488 problem (CVE-2009-3555) at the cost of breaking all
3489 renegotiation. Renegotiation can be re-enabled by setting
3490 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
3491 run-time. This is really not recommended unless you know what
3495 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
3497 *) Don't set val to NULL when freeing up structures, it is freed up by
3498 underlying code. If sizeof(void *) > sizeof(long) this can result in
3499 zeroing past the valid field. (CVE-2009-0789)
3500 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
3502 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
3503 checked correctly. This would allow some invalid signed attributes to
3504 appear to verify correctly. (CVE-2009-0591)
3505 [Ivan Nestlerode <inestlerode@us.ibm.com>]
3507 *) Reject UniversalString and BMPString types with invalid lengths. This
3508 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
3509 a legal length. (CVE-2009-0590)
3512 *) Set S/MIME signing as the default purpose rather than setting it
3513 unconditionally. This allows applications to override it at the store
3517 *) Permit restricted recursion of ASN1 strings. This is needed in practice
3518 to handle some structures.
3521 *) Improve efficiency of mem_gets: don't search whole buffer each time
3523 [Jeremy Shapiro <jnshapir@us.ibm.com>]
3525 *) New -hex option for openssl rand.
3528 *) Print out UTF8String and NumericString when parsing ASN1.
3531 *) Support NumericString type for name components.
3534 *) Allow CC in the environment to override the automatically chosen
3535 compiler. Note that nothing is done to ensure flags work with the
3539 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
3541 *) Properly check EVP_VerifyFinal() and similar return values
3543 [Ben Laurie, Bodo Moeller, Google Security Team]
3545 *) Enable TLS extensions by default.
3548 *) Allow the CHIL engine to be loaded, whether the application is
3549 multithreaded or not. (This does not release the developer from the
3550 obligation to set up the dynamic locking callbacks.)
3551 [Sander Temme <sander@temme.net>]
3553 *) Use correct exit code if there is an error in dgst command.
3554 [Steve Henson; problem pointed out by Roland Dirlewanger]
3556 *) Tweak Configure so that you need to say "experimental-jpake" to enable
3557 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
3560 *) Add experimental JPAKE support, including demo authentication in
3561 s_client and s_server.
3564 *) Set the comparison function in v3_addr_canonize().
3565 [Rob Austein <sra@hactrn.net>]
3567 *) Add support for XMPP STARTTLS in s_client.
3568 [Philip Paeps <philip@freebsd.org>]
3570 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
3571 to ensure that even with this option, only ciphersuites in the
3572 server's preference list will be accepted. (Note that the option
3573 applies only when resuming a session, so the earlier behavior was
3574 just about the algorithm choice for symmetric cryptography.)
3577 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
3579 *) Fix NULL pointer dereference if a DTLS server received
3580 ChangeCipherSpec as first record (CVE-2009-1386).
3583 *) Fix a state transition in s3_srvr.c and d1_srvr.c
3584 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
3587 *) The fix in 0.9.8c that supposedly got rid of unsafe
3588 double-checked locking was incomplete for RSA blinding,
3589 addressing just one layer of what turns out to have been
3590 doubly unsafe triple-checked locking.
3592 So now fix this for real by retiring the MONT_HELPER macro
3593 in crypto/rsa/rsa_eay.c.
3595 [Bodo Moeller; problem pointed out by Marius Schilder]
3597 *) Various precautionary measures:
3599 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
3601 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
3602 (NB: This would require knowledge of the secret session ticket key
3603 to exploit, in which case you'd be SOL either way.)
3605 - Change bn_nist.c so that it will properly handle input BIGNUMs
3606 outside the expected range.
3608 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
3611 [Neel Mehta, Bodo Moeller]
3613 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
3614 the load fails. Useful for distros.
3615 [Ben Laurie and the FreeBSD team]
3617 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
3620 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
3623 *) Expand ENGINE to support engine supplied SSL client certificate functions.
3625 This work was sponsored by Logica.
3628 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
3629 keystores. Support for SSL/TLS client authentication too.
3630 Not compiled unless enable-capieng specified to Configure.
3632 This work was sponsored by Logica.
3635 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
3636 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
3637 attribute creation routines such as certifcate requests and PKCS#12
3641 Changes between 0.9.8g and 0.9.8h [28 May 2008]
3643 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
3644 handshake which could lead to a cilent crash as found using the
3645 Codenomicon TLS test suite (CVE-2008-1672)
3646 [Steve Henson, Mark Cox]
3648 *) Fix double free in TLS server name extensions which could lead to
3649 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
3652 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
3654 Clear the error queue to ensure that error entries left from
3655 older function calls do not interfere with the correct operation.
3656 [Lutz Jaenicke, Erik de Castro Lopo]
3658 *) Remove root CA certificates of commercial CAs:
3660 The OpenSSL project does not recommend any specific CA and does not
3661 have any policy with respect to including or excluding any CA.
3662 Therefore it does not make any sense to ship an arbitrary selection
3663 of root CA certificates with the OpenSSL software.
3666 *) RSA OAEP patches to fix two separate invalid memory reads.
3667 The first one involves inputs when 'lzero' is greater than
3668 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
3669 before the beginning of from). The second one involves inputs where
3670 the 'db' section contains nothing but zeroes (there is a one-byte
3671 invalid read after the end of 'db').
3672 [Ivan Nestlerode <inestlerode@us.ibm.com>]
3674 *) Partial backport from 0.9.9-dev:
3676 Introduce bn_mul_mont (dedicated Montgomery multiplication
3677 procedure) as a candidate for BIGNUM assembler implementation.
3678 While 0.9.9-dev uses assembler for various architectures, only
3679 x86_64 is available by default here in the 0.9.8 branch, and
3680 32-bit x86 is available through a compile-time setting.
3682 To try the 32-bit x86 assembler implementation, use Configure
3683 option "enable-montasm" (which exists only for this backport).
3685 As "enable-montasm" for 32-bit x86 disclaims code stability
3686 anyway, in this constellation we activate additional code
3687 backported from 0.9.9-dev for further performance improvements,
3688 namely BN_from_montgomery_word. (To enable this otherwise,
3689 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
3691 [Andy Polyakov (backport partially by Bodo Moeller)]
3693 *) Add TLS session ticket callback. This allows an application to set
3694 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
3695 values. This is useful for key rollover for example where several key
3696 sets may exist with different names.
3699 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
3700 This was broken until now in 0.9.8 releases, such that the only way
3701 a registered ENGINE could be used (assuming it initialises
3702 successfully on the host) was to explicitly set it as the default
3703 for the relevant algorithms. This is in contradiction with 0.9.7
3704 behaviour and the documentation. With this fix, when an ENGINE is
3705 registered into a given algorithm's table of implementations, the
3706 'uptodate' flag is reset so that auto-discovery will be used next
3707 time a new context for that algorithm attempts to select an
3709 [Ian Lister (tweaked by Geoff Thorpe)]
3711 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
3712 implemention in the following ways:
3714 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
3717 Lack of BER streaming support means one pass streaming processing is
3718 only supported if data is detached: setting the streaming flag is
3719 ignored for embedded content.
3721 CMS support is disabled by default and must be explicitly enabled
3722 with the enable-cms configuration option.
3725 *) Update the GMP engine glue to do direct copies between BIGNUM and
3726 mpz_t when openssl and GMP use the same limb size. Otherwise the
3727 existing "conversion via a text string export" trick is still used.
3728 [Paul Sheer <paulsheer@gmail.com>]
3730 *) Zlib compression BIO. This is a filter BIO which compressed and
3731 uncompresses any data passed through it.
3734 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
3735 RFC3394 compatible AES key wrapping.
3738 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
3739 sets string data without copying. X509_ALGOR_set0() and
3740 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
3741 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
3742 from an X509_ATTRIBUTE structure optionally checking it occurs only
3743 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
3747 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
3748 to get the expected BN_FLG_CONSTTIME behavior.
3749 [Bodo Moeller (Google)]
3753 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
3754 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
3755 - added some more tests to do_tests.pl
3756 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
3757 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
3758 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
3759 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
3760 - various changes to netware.pl to enable gcc-cross builds on Win32
3762 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
3763 - various changes to fix missing prototype warnings
3764 - fixed x86nasm.pl to create correct asm files for NASM COFF output
3765 - added AES, WHIRLPOOL and CPUID assembler code to build files
3766 - added missing AES assembler make rules to mk1mf.pl
3767 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
3768 [Guenter Knauf <eflash@gmx.net>]
3770 *) Implement certificate status request TLS extension defined in RFC3546.
3771 A client can set the appropriate parameters and receive the encoded
3772 OCSP response via a callback. A server can query the supplied parameters
3773 and set the encoded OCSP response in the callback. Add simplified examples
3774 to s_client and s_server.
3777 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
3779 *) Fix various bugs:
3780 + Binary incompatibility of ssl_ctx_st structure
3781 + DTLS interoperation with non-compliant servers
3782 + Don't call get_session_cb() without proposed session
3783 + Fix ia64 assembler code
3784 [Andy Polyakov, Steve Henson]
3786 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
3788 *) DTLS Handshake overhaul. There were longstanding issues with
3789 OpenSSL DTLS implementation, which were making it impossible for
3790 RFC 4347 compliant client to communicate with OpenSSL server.
3791 Unfortunately just fixing these incompatibilities would "cut off"
3792 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
3793 server keeps tolerating non RFC compliant syntax. The opposite is
3794 not true, 0.9.8f client can not communicate with earlier server.
3795 This update even addresses CVE-2007-4995.
3798 *) Changes to avoid need for function casts in OpenSSL: some compilers
3799 (gcc 4.2 and later) reject their use.
3800 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
3803 *) Add RFC4507 support to OpenSSL. This includes the corrections in
3804 RFC4507bis. The encrypted ticket format is an encrypted encoded
3805 SSL_SESSION structure, that way new session features are automatically
3808 If a client application caches session in an SSL_SESSION structure
3809 support is transparent because tickets are now stored in the encoded
3812 The SSL_CTX structure automatically generates keys for ticket
3813 protection in servers so again support should be possible
3814 with no application modification.
3816 If a client or server wishes to disable RFC4507 support then the option
3817 SSL_OP_NO_TICKET can be set.
3819 Add a TLS extension debugging callback to allow the contents of any client
3820 or server extensions to be examined.
3822 This work was sponsored by Google.
3825 *) Add initial support for TLS extensions, specifically for the server_name
3826 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
3827 have new members for a host name. The SSL data structure has an
3828 additional member SSL_CTX *initial_ctx so that new sessions can be
3829 stored in that context to allow for session resumption, even after the
3830 SSL has been switched to a new SSL_CTX in reaction to a client's
3831 server_name extension.
3833 New functions (subject to change):
3835 SSL_get_servername()
3836 SSL_get_servername_type()
3839 New CTRL codes and macros (subject to change):
3841 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
3842 - SSL_CTX_set_tlsext_servername_callback()
3843 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
3844 - SSL_CTX_set_tlsext_servername_arg()
3845 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
3847 openssl s_client has a new '-servername ...' option.
3849 openssl s_server has new options '-servername_host ...', '-cert2 ...',
3850 '-key2 ...', '-servername_fatal' (subject to change). This allows
3851 testing the HostName extension for a specific single host name ('-cert'
3852 and '-key' remain fallbacks for handshakes without HostName
3853 negotiation). If the unrecognized_name alert has to be sent, this by
3854 default is a warning; it becomes fatal with the '-servername_fatal'
3857 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
3859 *) Add AES and SSE2 assembly language support to VC++ build.
3862 *) Mitigate attack on final subtraction in Montgomery reduction.
3865 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
3866 (which previously caused an internal error).
3869 *) Squeeze another 10% out of IGE mode when in != out.
3872 *) AES IGE mode speedup.
3873 [Dean Gaudet (Google)]
3875 *) Add the Korean symmetric 128-bit cipher SEED (see
3876 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
3877 add SEED ciphersuites from RFC 4162:
3879 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
3880 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
3881 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
3882 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
3884 To minimize changes between patchlevels in the OpenSSL 0.9.8
3885 series, SEED remains excluded from compilation unless OpenSSL
3886 is configured with 'enable-seed'.
3887 [KISA, Bodo Moeller]
3889 *) Mitigate branch prediction attacks, which can be practical if a
3890 single processor is shared, allowing a spy process to extract
3891 information. For detailed background information, see
3892 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
3893 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
3894 and Necessary Software Countermeasures"). The core of the change
3895 are new versions BN_div_no_branch() and
3896 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
3897 respectively, which are slower, but avoid the security-relevant
3898 conditional branches. These are automatically called by BN_div()
3899 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
3900 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
3901 remove a conditional branch.
3903 BN_FLG_CONSTTIME is the new name for the previous
3904 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
3905 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
3906 in the exponent causes BN_mod_exp_mont() to use the alternative
3907 implementation in BN_mod_exp_mont_consttime().) The old name
3908 remains as a deprecated alias.
3910 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
3911 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
3912 constant-time implementations for more than just exponentiation.
3913 Here too the old name is kept as a deprecated alias.
3915 BN_BLINDING_new() will now use BN_dup() for the modulus so that
3916 the BN_BLINDING structure gets an independent copy of the
3917 modulus. This means that the previous "BIGNUM *m" argument to
3918 BN_BLINDING_new() and to BN_BLINDING_create_param() now
3919 essentially becomes "const BIGNUM *m", although we can't actually
3920 change this in the header file before 0.9.9. It allows
3921 RSA_setup_blinding() to use BN_with_flags() on the modulus to
3922 enable BN_FLG_CONSTTIME.
3924 [Matthew D Wood (Intel Corp)]
3926 *) In the SSL/TLS server implementation, be strict about session ID
3927 context matching (which matters if an application uses a single
3928 external cache for different purposes). Previously,
3929 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
3930 set. This did ensure strict client verification, but meant that,
3931 with applications using a single external cache for quite
3932 different requirements, clients could circumvent ciphersuite
3933 restrictions for a given session ID context by starting a session
3934 in a different context.
3937 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3938 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3939 authentication-only ciphersuites.
3942 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
3943 not complete and could lead to a possible single byte overflow
3944 (CVE-2007-5135) [Ben Laurie]
3946 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
3948 *) Since AES128 and AES256 (and similarly Camellia128 and
3949 Camellia256) share a single mask bit in the logic of
3950 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3951 kludge to work properly if AES128 is available and AES256 isn't
3952 (or if Camellia128 is available and Camellia256 isn't).
3955 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
3956 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
3957 When a point or a seed is encoded in a BIT STRING, we need to
3958 prevent the removal of trailing zero bits to get the proper DER
3959 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
3960 of a NamedBitList, for which trailing 0 bits need to be removed.)
3963 *) Have SSL/TLS server implementation tolerate "mismatched" record
3964 protocol version while receiving ClientHello even if the
3965 ClientHello is fragmented. (The server can't insist on the
3966 particular protocol version it has chosen before the ServerHello
3967 message has informed the client about his choice.)
3970 *) Add RFC 3779 support.
3971 [Rob Austein for ARIN, Ben Laurie]
3973 *) Load error codes if they are not already present instead of using a
3974 static variable. This allows them to be cleanly unloaded and reloaded.
3975 Improve header file function name parsing.
3978 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
3979 or CAPABILITY handshake as required by RFCs.
3982 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
3984 *) Introduce limits to prevent malicious keys being able to
3985 cause a denial of service. (CVE-2006-2940)
3986 [Steve Henson, Bodo Moeller]
3988 *) Fix ASN.1 parsing of certain invalid structures that can result
3989 in a denial of service. (CVE-2006-2937) [Steve Henson]
3991 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3992 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3994 *) Fix SSL client code which could crash if connecting to a
3995 malicious SSLv2 server. (CVE-2006-4343)
3996 [Tavis Ormandy and Will Drewry, Google Security Team]
3998 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
3999 match only those. Before that, "AES256-SHA" would be interpreted
4000 as a pattern and match "AES128-SHA" too (since AES128-SHA got
4001 the same strength classification in 0.9.7h) as we currently only
4002 have a single AES bit in the ciphersuite description bitmap.
4003 That change, however, also applied to ciphersuite strings such as
4004 "RC4-MD5" that intentionally matched multiple ciphersuites --
4005 namely, SSL 2.0 ciphersuites in addition to the more common ones
4006 from SSL 3.0/TLS 1.0.
4008 So we change the selection algorithm again: Naming an explicit
4009 ciphersuite selects this one ciphersuite, and any other similar
4010 ciphersuite (same bitmap) from *other* protocol versions.
4011 Thus, "RC4-MD5" again will properly select both the SSL 2.0
4012 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
4014 Since SSL 2.0 does not have any ciphersuites for which the
4015 128/256 bit distinction would be relevant, this works for now.
4016 The proper fix will be to use different bits for AES128 and
4017 AES256, which would have avoided the problems from the beginning;
4018 however, bits are scarce, so we can only do this in a new release
4019 (not just a patchlevel) when we can change the SSL_CIPHER
4020 definition to split the single 'unsigned long mask' bitmap into
4021 multiple values to extend the available space.
4025 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
4027 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
4028 (CVE-2006-4339) [Ben Laurie and Google Security Team]
4030 *) Add AES IGE and biIGE modes.
4033 *) Change the Unix randomness entropy gathering to use poll() when
4034 possible instead of select(), since the latter has some
4035 undesirable limitations.
4036 [Darryl Miles via Richard Levitte and Bodo Moeller]
4038 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
4039 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
4040 cannot be implicitly activated as part of, e.g., the "AES" alias.
4041 However, please upgrade to OpenSSL 0.9.9[-dev] for
4042 non-experimental use of the ECC ciphersuites to get TLS extension
4043 support, which is required for curve and point format negotiation
4044 to avoid potential handshake problems.
4047 *) Disable rogue ciphersuites:
4049 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
4050 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
4051 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
4053 The latter two were purportedly from
4054 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
4057 Also deactivate the remaining ciphersuites from
4058 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
4059 unofficial, and the ID has long expired.
4062 *) Fix RSA blinding Heisenbug (problems sometimes occurred on
4063 dual-core machines) and other potential thread-safety issues.
4066 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
4067 versions), which is now available for royalty-free use
4068 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
4069 Also, add Camellia TLS ciphersuites from RFC 4132.
4071 To minimize changes between patchlevels in the OpenSSL 0.9.8
4072 series, Camellia remains excluded from compilation unless OpenSSL
4073 is configured with 'enable-camellia'.
4076 *) Disable the padding bug check when compression is in use. The padding
4077 bug check assumes the first packet is of even length, this is not
4078 necessarily true if compresssion is enabled and can result in false
4079 positives causing handshake failure. The actual bug test is ancient
4080 code so it is hoped that implementations will either have fixed it by
4081 now or any which still have the bug do not support compression.
4084 Changes between 0.9.8a and 0.9.8b [04 May 2006]
4086 *) When applying a cipher rule check to see if string match is an explicit
4087 cipher suite and only match that one cipher suite if it is.
4090 *) Link in manifests for VC++ if needed.
4091 [Austin Ziegler <halostatue@gmail.com>]
4093 *) Update support for ECC-based TLS ciphersuites according to
4094 draft-ietf-tls-ecc-12.txt with proposed changes (but without
4095 TLS extensions, which are supported starting with the 0.9.9
4096 branch, not in the OpenSSL 0.9.8 branch).
4099 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
4100 opaque EVP_CIPHER_CTX handling.
4103 *) Fixes and enhancements to zlib compression code. We now only use
4104 "zlib1.dll" and use the default __cdecl calling convention on Win32
4105 to conform with the standards mentioned here:
4106 http://www.zlib.net/DLL_FAQ.txt
4107 Static zlib linking now works on Windows and the new --with-zlib-include
4108 --with-zlib-lib options to Configure can be used to supply the location
4109 of the headers and library. Gracefully handle case where zlib library
4113 *) Several fixes and enhancements to the OID generation code. The old code
4114 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
4115 handle numbers larger than ULONG_MAX, truncated printing and had a
4116 non standard OBJ_obj2txt() behaviour.
4119 *) Add support for building of engines under engine/ as shared libraries
4120 under VC++ build system.
4123 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
4124 Hopefully, we will not see any false combination of paths any more.
4127 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
4129 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
4130 (part of SSL_OP_ALL). This option used to disable the
4131 countermeasure against man-in-the-middle protocol-version
4132 rollback in the SSL 2.0 server implementation, which is a bad
4133 idea. (CVE-2005-2969)
4135 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
4136 for Information Security, National Institute of Advanced Industrial
4137 Science and Technology [AIST], Japan)]
4139 *) Add two function to clear and return the verify parameter flags.
4142 *) Keep cipherlists sorted in the source instead of sorting them at
4143 runtime, thus removing the need for a lock.
4146 *) Avoid some small subgroup attacks in Diffie-Hellman.
4147 [Nick Mathewson and Ben Laurie]
4149 *) Add functions for well-known primes.
4152 *) Extended Windows CE support.
4153 [Satoshi Nakamura and Andy Polyakov]
4155 *) Initialize SSL_METHOD structures at compile time instead of during
4156 runtime, thus removing the need for a lock.
4159 *) Make PKCS7_decrypt() work even if no certificate is supplied by
4160 attempting to decrypt each encrypted key in turn. Add support to
4164 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
4166 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
4169 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
4172 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
4173 key into the same file any more.
4176 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
4179 *) Add -utf8 command line and config file option to 'ca'.
4180 [Stefan <stf@udoma.org]
4182 *) Removed the macro des_crypt(), as it seems to conflict with some
4183 libraries. Use DES_crypt().
4186 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
4187 involves renaming the source and generated shared-libs for
4188 both. The engines will accept the corrected or legacy ids
4189 ('ncipher' and '4758_cca' respectively) when binding. NB,
4190 this only applies when building 'shared'.
4191 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
4193 *) Add attribute functions to EVP_PKEY structure. Modify
4194 PKCS12_create() to recognize a CSP name attribute and
4195 use it. Make -CSP option work again in pkcs12 utility.
4198 *) Add new functionality to the bn blinding code:
4199 - automatic re-creation of the BN_BLINDING parameters after
4200 a fixed number of uses (currently 32)
4201 - add new function for parameter creation
4202 - introduce flags to control the update behaviour of the
4203 BN_BLINDING parameters
4204 - hide BN_BLINDING structure
4205 Add a second BN_BLINDING slot to the RSA structure to improve
4206 performance when a single RSA object is shared among several
4210 *) Add support for DTLS.
4211 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
4213 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
4214 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
4217 *) Remove buggy and incomplete DH cert support from
4218 ssl/ssl_rsa.c and ssl/s3_both.c
4221 *) Use SHA-1 instead of MD5 as the default digest algorithm for
4222 the apps/openssl applications.
4225 *) Compile clean with "-Wall -Wmissing-prototypes
4226 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
4227 DEBUG_SAFESTACK must also be set.
4230 *) Change ./Configure so that certain algorithms can be disabled by default.
4231 The new counterpiece to "no-xxx" is "enable-xxx".
4233 The patented RC5 and MDC2 algorithms will now be disabled unless
4234 "enable-rc5" and "enable-mdc2", respectively, are specified.
4236 (IDEA remains enabled despite being patented. This is because IDEA
4237 is frequently required for interoperability, and there is no license
4238 fee for non-commercial use. As before, "no-idea" can be used to
4239 avoid this algorithm.)
4243 *) Add processing of proxy certificates (see RFC 3820). This work was
4244 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
4245 EGEE (Enabling Grids for E-science in Europe).
4248 *) RC4 performance overhaul on modern architectures/implementations, such
4249 as Intel P4, IA-64 and AMD64.
4252 *) New utility extract-section.pl. This can be used specify an alternative
4253 section number in a pod file instead of having to treat each file as
4254 a separate case in Makefile. This can be done by adding two lines to the
4257 =for comment openssl_section:XXX
4259 The blank line is mandatory.
4263 *) New arguments -certform, -keyform and -pass for s_client and s_server
4264 to allow alternative format key and certificate files and passphrase
4268 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
4269 update associated structures and add various utility functions.
4271 Add new policy related verify parameters, include policy checking in
4272 standard verify code. Enhance 'smime' application with extra parameters
4273 to support policy checking and print out.
4276 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
4277 Nehemiah processors. These extensions support AES encryption in hardware
4278 as well as RNG (though RNG support is currently disabled).
4279 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
4281 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
4284 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
4285 [Andy Polyakov and a number of other people]
4287 *) Improved PowerPC platform support. Most notably BIGNUM assembler
4288 implementation contributed by IBM.
4289 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
4291 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
4292 exponent rather than 'unsigned long'. There is a corresponding change to
4293 the new 'rsa_keygen' element of the RSA_METHOD structure.
4294 [Jelte Jansen, Geoff Thorpe]
4296 *) Functionality for creating the initial serial number file is now
4297 moved from CA.pl to the 'ca' utility with a new option -create_serial.
4299 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
4300 number file to 1, which is bound to cause problems. To avoid
4301 the problems while respecting compatibility between different 0.9.7
4302 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
4303 CA.pl for serial number initialization. With the new release 0.9.8,
4304 we can fix the problem directly in the 'ca' utility.)
4307 *) Reduced header interdepencies by declaring more opaque objects in
4308 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
4309 give fewer recursive includes, which could break lazy source code - so
4310 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
4311 developers should define this symbol when building and using openssl to
4312 ensure they track the recommended behaviour, interfaces, [etc], but
4313 backwards-compatible behaviour prevails when this isn't defined.
4316 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
4319 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
4320 This will generate a random key of the appropriate length based on the
4321 cipher context. The EVP_CIPHER can provide its own random key generation
4322 routine to support keys of a specific form. This is used in the des and
4323 3des routines to generate a key of the correct parity. Update S/MIME
4324 code to use new functions and hence generate correct parity DES keys.
4325 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
4326 valid (weak or incorrect parity).
4329 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
4330 as looking them up. This is useful when the verified structure may contain
4331 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
4332 present unless the new PKCS7_NO_CRL flag is asserted.
4335 *) Extend ASN1 oid configuration module. It now additionally accepts the
4338 shortName = some long name, 1.2.3.4
4341 *) Reimplemented the BN_CTX implementation. There is now no more static
4342 limitation on the number of variables it can handle nor the depth of the
4343 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
4344 information can now expand as required, and rather than having a single
4345 static array of bignums, BN_CTX now uses a linked-list of such arrays
4346 allowing it to expand on demand whilst maintaining the usefulness of
4347 BN_CTX's "bundling".
4350 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
4351 to allow all RSA operations to function using a single BN_CTX.
4354 *) Preliminary support for certificate policy evaluation and checking. This
4355 is initially intended to pass the tests outlined in "Conformance Testing
4356 of Relying Party Client Certificate Path Processing Logic" v1.07.
4359 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
4360 remained unused and not that useful. A variety of other little bignum
4361 tweaks and fixes have also been made continuing on from the audit (see
4365 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
4366 associated ASN1, EVP and SSL functions and old ASN1 macros.
4369 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
4370 and this should never fail. So the return value from the use of
4371 BN_set_word() (which can fail due to needless expansion) is now deprecated;
4372 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
4375 *) BN_CTX_get() should return zero-valued bignums, providing the same
4376 initialised value as BN_new().
4377 [Geoff Thorpe, suggested by Ulf Möller]
4379 *) Support for inhibitAnyPolicy certificate extension.
4382 *) An audit of the BIGNUM code is underway, for which debugging code is
4383 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
4384 is considered valid when processing BIGNUMs, and causes execution to
4385 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
4386 further steps are taken to deliberately pollute unused data in BIGNUM
4387 structures to try and expose faulty code further on. For now, openssl will
4388 (in its default mode of operation) continue to tolerate the inconsistent
4389 forms that it has tolerated in the past, but authors and packagers should
4390 consider trying openssl and their own applications when compiled with
4391 these debugging symbols defined. It will help highlight potential bugs in
4392 their own code, and will improve the test coverage for OpenSSL itself. At
4393 some point, these tighter rules will become openssl's default to improve
4394 maintainability, though the assert()s and other overheads will remain only
4395 in debugging configurations. See bn.h for more details.
4396 [Geoff Thorpe, Nils Larsch, Ulf Möller]
4398 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
4399 that can only be obtained through BN_CTX_new() (which implicitly
4400 initialises it). The presence of this function only made it possible
4401 to overwrite an existing structure (and cause memory leaks).
4404 *) Because of the callback-based approach for implementing LHASH as a
4405 template type, lh_insert() adds opaque objects to hash-tables and
4406 lh_doall() or lh_doall_arg() are typically used with a destructor callback
4407 to clean up those corresponding objects before destroying the hash table
4408 (and losing the object pointers). So some over-zealous constifications in
4409 LHASH have been relaxed so that lh_insert() does not take (nor store) the
4410 objects as "const" and the lh_doall[_arg] callback wrappers are not
4411 prototyped to have "const" restrictions on the object pointers they are
4412 given (and so aren't required to cast them away any more).
4415 *) The tmdiff.h API was so ugly and minimal that our own timing utility
4416 (speed) prefers to use its own implementation. The two implementations
4417 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
4418 its object type properly exposed (MS_TM) instead of casting to/from "char
4419 *". This may still change yet if someone realises MS_TM and "ms_time_***"
4420 aren't necessarily the greatest nomenclatures - but this is what was used
4421 internally to the implementation so I've used that for now.
4424 *) Ensure that deprecated functions do not get compiled when
4425 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
4426 the self-tests were still using deprecated key-generation functions so
4427 these have been updated also.
4430 *) Reorganise PKCS#7 code to separate the digest location functionality
4431 into PKCS7_find_digest(), digest addition into PKCS7_bio_add_digest().
4432 New function PKCS7_set_digest() to set the digest type for PKCS#7
4433 digestedData type. Add additional code to correctly generate the
4434 digestedData type and add support for this type in PKCS7 initialization
4438 *) New function PKCS7_set0_type_other() this initializes a PKCS7
4439 structure of type "other".
4442 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
4443 sure the loop does correctly stop and breaking ("division by zero")
4444 modulus operations are not performed. The (pre-generated) prime
4445 table crypto/bn/bn_prime.h was already correct, but it could not be
4446 re-generated on some platforms because of the "division by zero"
4447 situation in the script.
4448 [Ralf S. Engelschall]
4450 *) Update support for ECC-based TLS ciphersuites according to
4451 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
4452 SHA-1 now is only used for "small" curves (where the
4453 representation of a field element takes up to 24 bytes); for
4454 larger curves, the field element resulting from ECDH is directly
4455 used as premaster secret.
4456 [Douglas Stebila (Sun Microsystems Laboratories)]
4458 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
4459 curve secp160r1 to the tests.
4460 [Douglas Stebila (Sun Microsystems Laboratories)]
4462 *) Add the possibility to load symbols globally with DSO.
4463 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
4465 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
4466 control of the error stack.
4469 *) Add support for STORE in ENGINE.
4472 *) Add the STORE type. The intention is to provide a common interface
4473 to certificate and key stores, be they simple file-based stores, or
4474 HSM-type store, or LDAP stores, or...
4475 NOTE: The code is currently UNTESTED and isn't really used anywhere.
4478 *) Add a generic structure called OPENSSL_ITEM. This can be used to
4479 pass a list of arguments to any function as well as provide a way
4480 for a function to pass data back to the caller.
4483 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
4484 works like BUF_strdup() but can be used to duplicate a portion of
4485 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
4489 *) Add the function sk_find_ex() which works like sk_find(), but will
4490 return an index to an element even if an exact match couldn't be
4491 found. The index is guaranteed to point at the element where the
4492 searched-for key would be inserted to preserve sorting order.
4495 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
4496 takes an extra flags argument for optional functionality. Currently,
4497 the following flags are defined:
4499 OBJ_BSEARCH_VALUE_ON_NOMATCH
4500 This one gets OBJ_bsearch_ex() to return a pointer to the first
4501 element where the comparing function returns a negative or zero
4504 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
4505 This one gets OBJ_bsearch_ex() to return a pointer to the first
4506 element where the comparing function returns zero. This is useful
4507 if there are more than one element where the comparing function
4511 *) Make it possible to create self-signed certificates with 'openssl ca'
4512 in such a way that the self-signed certificate becomes part of the
4513 CA database and uses the same mechanisms for serial number generation
4514 as all other certificate signing. The new flag '-selfsign' enables
4515 this functionality. Adapt CA.sh and CA.pl.in.
4518 *) Add functionality to check the public key of a certificate request
4519 against a given private. This is useful to check that a certificate
4520 request can be signed by that key (self-signing).
4523 *) Make it possible to have multiple active certificates with the same
4524 subject in the CA index file. This is done only if the keyword
4525 'unique_subject' is set to 'no' in the main CA section (default
4526 if 'CA_default') of the configuration file. The value is saved
4527 with the database itself in a separate index attribute file,
4528 named like the index file with '.attr' appended to the name.
4531 *) Generate muti valued AVAs using '+' notation in config files for
4535 *) Support for nameConstraints certificate extension.
4538 *) Support for policyConstraints certificate extension.
4541 *) Support for policyMappings certificate extension.
4544 *) Make sure the default DSA_METHOD implementation only uses its
4545 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
4546 and change its own handlers to be NULL so as to remove unnecessary
4547 indirection. This lets alternative implementations fallback to the
4548 default implementation more easily.
4551 *) Support for directoryName in GeneralName related extensions
4555 *) Make it possible to link applications using Makefile.shared.
4556 Make that possible even when linking against static libraries!
4559 *) Support for single pass processing for S/MIME signing. This now
4560 means that S/MIME signing can be done from a pipe, in addition
4561 cleartext signing (multipart/signed type) is effectively streaming
4562 and the signed data does not need to be all held in memory.
4564 This is done with a new flag PKCS7_STREAM. When this flag is set
4565 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
4566 is done after the data is output (and digests calculated) in
4567 SMIME_write_PKCS7().
4570 *) Add full support for -rpath/-R, both in shared libraries and
4571 applications, at least on the platforms where it's known how
4575 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
4576 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
4577 will now compute a table of multiples of the generator that
4578 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
4579 faster (notably in the case of a single point multiplication,
4580 scalar * generator).
4581 [Nils Larsch, Bodo Moeller]
4583 *) IPv6 support for certificate extensions. The various extensions
4584 which use the IP:a.b.c.d can now take IPv6 addresses using the
4585 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
4589 *) Added an ENGINE that implements RSA by performing private key
4590 exponentiations with the GMP library. The conversions to and from
4591 GMP's mpz_t format aren't optimised nor are any montgomery forms
4592 cached, and on x86 it appears OpenSSL's own performance has caught up.
4593 However there are likely to be other architectures where GMP could
4594 provide a boost. This ENGINE is not built in by default, but it can be
4595 specified at Configure time and should be accompanied by the necessary
4596 linker additions, eg;
4597 ./config -DOPENSSL_USE_GMP -lgmp
4600 *) "openssl engine" will not display ENGINE/DSO load failure errors when
4601 testing availability of engines with "-t" - the old behaviour is
4602 produced by increasing the feature's verbosity with "-tt".
4605 *) ECDSA routines: under certain error conditions uninitialized BN objects
4606 could be freed. Solution: make sure initialization is performed early
4607 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
4611 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
4612 and DH_METHOD (eg. by ENGINE implementations) to override the normal
4613 software implementations. For DSA and DH, parameter generation can
4614 also be overriden by providing the appropriate method callbacks.
4617 *) Change the "progress" mechanism used in key-generation and
4618 primality testing to functions that take a new BN_GENCB pointer in
4619 place of callback/argument pairs. The new API functions have "_ex"
4620 postfixes and the older functions are reimplemented as wrappers for
4621 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
4622 declarations of the old functions to help (graceful) attempts to
4623 migrate to the new functions. Also, the new key-generation API
4624 functions operate on a caller-supplied key-structure and return
4625 success/failure rather than returning a key or NULL - this is to
4626 help make "keygen" another member function of RSA_METHOD etc.
4628 Example for using the new callback interface:
4630 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
4634 BN_GENCB_set(&my_cb, my_callback, my_arg);
4636 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
4637 /* For the meaning of a, b in calls to my_callback(), see the
4638 * documentation of the function that calls the callback.
4639 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
4640 * my_callback should return 1 if it wants BN_is_prime_ex()
4641 * to continue, or 0 to stop.
4646 *) Change the ZLIB compression method to be stateful, and make it
4647 available to TLS with the number defined in
4648 draft-ietf-tls-compression-04.txt.
4651 *) Add the ASN.1 structures and functions for CertificatePair, which
4652 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
4654 CertificatePair ::= SEQUENCE {
4655 forward [0] Certificate OPTIONAL,
4656 reverse [1] Certificate OPTIONAL,
4657 -- at least one of the pair shall be present -- }
4659 Also implement the PEM functions to read and write certificate
4660 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
4662 This needed to be defined, mostly for the sake of the LDAP
4663 attribute crossCertificatePair, but may prove useful elsewhere as
4667 *) Make it possible to inhibit symlinking of shared libraries in
4668 Makefile.shared, for Cygwin's sake.
4671 *) Extend the BIGNUM API by creating a function
4672 void BN_set_negative(BIGNUM *a, int neg);
4673 and a macro that behave like
4674 int BN_is_negative(const BIGNUM *a);
4676 to avoid the need to access 'a->neg' directly in applications.
4679 *) Implement fast modular reduction for pseudo-Mersenne primes
4680 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
4681 EC_GROUP_new_curve_GFp() will now automatically use this
4683 [Nils Larsch <nla@trustcenter.de>]
4685 *) Add new lock type (CRYPTO_LOCK_BN).
4688 *) Change the ENGINE framework to automatically load engines
4689 dynamically from specific directories unless they could be
4690 found to already be built in or loaded. Move all the
4691 current engines except for the cryptodev one to a new
4693 The engines in engines/ are built as shared libraries if
4694 the "shared" options was given to ./Configure or ./config.
4695 Otherwise, they are inserted in libcrypto.a.
4696 /usr/local/ssl/engines is the default directory for dynamic
4697 engines, but that can be overriden at configure time through
4698 the usual use of --prefix and/or --openssldir, and at run
4699 time with the environment variable OPENSSL_ENGINES.
4700 [Geoff Thorpe and Richard Levitte]
4702 *) Add Makefile.shared, a helper makefile to build shared
4703 libraries. Adapt Makefile.org.
4706 *) Add version info to Win32 DLLs.
4707 [Peter 'Luna' Runestig" <peter@runestig.com>]
4709 *) Add new 'medium level' PKCS#12 API. Certificates and keys
4710 can be added using this API to created arbitrary PKCS#12
4711 files while avoiding the low level API.
4713 New options to PKCS12_create(), key or cert can be NULL and
4714 will then be omitted from the output file. The encryption
4715 algorithm NIDs can be set to -1 for no encryption, the mac
4716 iteration count can be set to 0 to omit the mac.
4718 Enhance pkcs12 utility by making the -nokeys and -nocerts
4719 options work when creating a PKCS#12 file. New option -nomac
4720 to omit the mac, NONE can be set for an encryption algorithm.
4721 New code is modified to use the enhanced PKCS12_create()
4722 instead of the low level API.
4725 *) Extend ASN1 encoder to support indefinite length constructed
4726 encoding. This can output sequences tags and octet strings in
4727 this form. Modify pk7_asn1.c to support indefinite length
4728 encoding. This is experimental and needs additional code to
4729 be useful, such as an ASN1 bio and some enhanced streaming
4732 Extend template encode functionality so that tagging is passed
4733 down to the template encoder.
4736 *) Let 'openssl req' fail if an argument to '-newkey' is not
4737 recognized instead of using RSA as a default.
4740 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
4741 As these are not official, they are not included in "ALL";
4742 the "ECCdraft" ciphersuite group alias can be used to select them.
4743 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
4745 *) Add ECDH engine support.
4746 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
4748 *) Add ECDH in new directory crypto/ecdh/.
4749 [Douglas Stebila (Sun Microsystems Laboratories)]
4751 *) Let BN_rand_range() abort with an error after 100 iterations
4752 without success (which indicates a broken PRNG).
4755 *) Change BN_mod_sqrt() so that it verifies that the input value
4756 is really the square of the return value. (Previously,
4757 BN_mod_sqrt would show GIGO behaviour.)
4760 *) Add named elliptic curves over binary fields from X9.62, SECG,
4761 and WAP/WTLS; add OIDs that were still missing.
4763 [Sheueling Chang Shantz and Douglas Stebila
4764 (Sun Microsystems Laboratories)]
4766 *) Extend the EC library for elliptic curves over binary fields
4767 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
4770 EC_GF2m_simple_method
4774 EC_GROUP_new_curve_GF2m
4775 EC_GROUP_set_curve_GF2m
4776 EC_GROUP_get_curve_GF2m
4777 EC_POINT_set_affine_coordinates_GF2m
4778 EC_POINT_get_affine_coordinates_GF2m
4779 EC_POINT_set_compressed_coordinates_GF2m
4781 Point compression for binary fields is disabled by default for
4782 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
4785 As binary polynomials are represented as BIGNUMs, various members
4786 of the EC_GROUP and EC_POINT data structures can be shared
4787 between the implementations for prime fields and binary fields;
4788 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
4789 are essentially identical to their ..._GFp counterparts.
4790 (For simplicity, the '..._GFp' prefix has been dropped from
4791 various internal method names.)
4793 An internal 'field_div' method (similar to 'field_mul' and
4794 'field_sqr') has been added; this is used only for binary fields.
4796 [Sheueling Chang Shantz and Douglas Stebila
4797 (Sun Microsystems Laboratories)]
4799 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
4800 through methods ('mul', 'precompute_mult').
4802 The generic implementations (now internally called 'ec_wNAF_mul'
4803 and 'ec_wNAF_precomputed_mult') remain the default if these
4804 methods are undefined.
4806 [Sheueling Chang Shantz and Douglas Stebila
4807 (Sun Microsystems Laboratories)]
4809 *) New function EC_GROUP_get_degree, which is defined through
4810 EC_METHOD. For curves over prime fields, this returns the bit
4811 length of the modulus.
4813 [Sheueling Chang Shantz and Douglas Stebila
4814 (Sun Microsystems Laboratories)]
4816 *) New functions EC_GROUP_dup, EC_POINT_dup.
4817 (These simply call ..._new and ..._copy).
4819 [Sheueling Chang Shantz and Douglas Stebila
4820 (Sun Microsystems Laboratories)]
4822 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
4823 Polynomials are represented as BIGNUMs (where the sign bit is not
4824 used) in the following functions [macros]:
4827 BN_GF2m_sub [= BN_GF2m_add]
4828 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
4829 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
4830 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
4832 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
4833 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
4834 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
4835 BN_GF2m_cmp [= BN_ucmp]
4837 (Note that only the 'mod' functions are actually for fields GF(2^m).
4838 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
4840 For some functions, an the irreducible polynomial defining a
4841 field can be given as an 'unsigned int[]' with strictly
4842 decreasing elements giving the indices of those bits that are set;
4843 i.e., p[] represents the polynomial
4844 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
4846 p[0] > p[1] > ... > p[k] = 0.
4847 This applies to the following functions:
4852 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
4853 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
4855 BN_GF2m_mod_sqrt_arr
4856 BN_GF2m_mod_solve_quad_arr
4860 Conversion can be performed by the following functions:
4865 bntest.c has additional tests for binary polynomial arithmetic.
4867 Two implementations for BN_GF2m_mod_div() are available.
4868 The default algorithm simply uses BN_GF2m_mod_inv() and
4869 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
4870 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
4871 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
4873 [Sheueling Chang Shantz and Douglas Stebila
4874 (Sun Microsystems Laboratories)]
4876 *) Add new error code 'ERR_R_DISABLED' that can be used when some
4877 functionality is disabled at compile-time.
4878 [Douglas Stebila <douglas.stebila@sun.com>]
4880 *) Change default behaviour of 'openssl asn1parse' so that more
4881 information is visible when viewing, e.g., a certificate:
4883 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
4884 mode the content of non-printable OCTET STRINGs is output in a
4885 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
4886 avoid the appearance of a printable string.
4887 [Nils Larsch <nla@trustcenter.de>]
4889 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
4891 EC_GROUP_set_asn1_flag()
4892 EC_GROUP_get_asn1_flag()
4893 EC_GROUP_set_point_conversion_form()
4894 EC_GROUP_get_point_conversion_form()
4895 These control ASN1 encoding details:
4896 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
4897 has been set to OPENSSL_EC_NAMED_CURVE.
4898 - Points are encoded in uncompressed form by default; options for
4899 asn1_for are as for point2oct, namely
4900 POINT_CONVERSION_COMPRESSED
4901 POINT_CONVERSION_UNCOMPRESSED
4902 POINT_CONVERSION_HYBRID
4904 Also add 'seed' and 'seed_len' members to EC_GROUP with access
4907 EC_GROUP_get0_seed()
4908 EC_GROUP_get_seed_len()
4909 This is used only for ASN1 purposes (so far).
4910 [Nils Larsch <nla@trustcenter.de>]
4912 *) Add 'field_type' member to EC_METHOD, which holds the NID
4913 of the appropriate field type OID. The new function
4914 EC_METHOD_get_field_type() returns this value.
4915 [Nils Larsch <nla@trustcenter.de>]
4920 EC_POINT_point2hex()
4921 EC_POINT_hex2point()
4922 providing useful interfaces to EC_POINT_point2oct() and
4923 EC_POINT_oct2point().
4924 [Nils Larsch <nla@trustcenter.de>]
4926 *) Change internals of the EC library so that the functions
4927 EC_GROUP_set_generator()
4928 EC_GROUP_get_generator()
4929 EC_GROUP_get_order()
4930 EC_GROUP_get_cofactor()
4931 are implemented directly in crypto/ec/ec_lib.c and not dispatched
4932 to methods, which would lead to unnecessary code duplication when
4933 adding different types of curves.
4934 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
4936 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
4937 arithmetic, and such that modified wNAFs are generated
4938 (which avoid length expansion in many cases).
4941 *) Add a function EC_GROUP_check_discriminant() (defined via
4942 EC_METHOD) that verifies that the curve discriminant is non-zero.
4944 Add a function EC_GROUP_check() that makes some sanity tests
4945 on a EC_GROUP, its generator and order. This includes
4946 EC_GROUP_check_discriminant().
4947 [Nils Larsch <nla@trustcenter.de>]
4949 *) Add ECDSA in new directory crypto/ecdsa/.
4951 Add applications 'openssl ecparam' and 'openssl ecdsa'
4952 (these are based on 'openssl dsaparam' and 'openssl dsa').
4954 ECDSA support is also included in various other files across the
4955 library. Most notably,
4956 - 'openssl req' now has a '-newkey ecdsa:file' option;
4957 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
4958 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
4959 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
4960 them suitable for ECDSA where domain parameters must be
4961 extracted before the specific public key;
4962 - ECDSA engine support has been added.
4963 [Nils Larsch <nla@trustcenter.de>]
4965 *) Include some named elliptic curves, and add OIDs from X9.62,
4966 SECG, and WAP/WTLS. Each curve can be obtained from the new
4968 EC_GROUP_new_by_curve_name(),
4969 and the list of available named curves can be obtained with
4970 EC_get_builtin_curves().
4971 Also add a 'curve_name' member to EC_GROUP objects, which can be
4973 EC_GROUP_set_curve_name()
4974 EC_GROUP_get_curve_name()
4975 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
4977 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
4978 was actually never needed) and in BN_mul(). The removal in BN_mul()
4979 required a small change in bn_mul_part_recursive() and the addition
4980 of the functions bn_cmp_part_words(), bn_sub_part_words() and
4981 bn_add_part_words(), which do the same thing as bn_cmp_words(),
4982 bn_sub_words() and bn_add_words() except they take arrays with
4986 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
4988 *) Cleanse PEM buffers before freeing them since they may contain
4990 [Benjamin Bennett <ben@psc.edu>]
4992 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
4993 a ciphersuite string such as "DEFAULT:RSA" cannot enable
4994 authentication-only ciphersuites.
4997 *) Since AES128 and AES256 share a single mask bit in the logic of
4998 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
4999 kludge to work properly if AES128 is available and AES256 isn't.
5002 *) Expand security boundary to match 1.1.1 module.
5005 *) Remove redundant features: hash file source, editing of test vectors
5006 modify fipsld to use external fips_premain.c signature.
5009 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
5010 run algorithm test programs.
5013 *) Make algorithm test programs more tolerant of whitespace.
5016 *) Have SSL/TLS server implementation tolerate "mismatched" record
5017 protocol version while receiving ClientHello even if the
5018 ClientHello is fragmented. (The server can't insist on the
5019 particular protocol version it has chosen before the ServerHello
5020 message has informed the client about his choice.)
5023 *) Load error codes if they are not already present instead of using a
5024 static variable. This allows them to be cleanly unloaded and reloaded.
5027 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
5029 *) Introduce limits to prevent malicious keys being able to
5030 cause a denial of service. (CVE-2006-2940)
5031 [Steve Henson, Bodo Moeller]
5033 *) Fix ASN.1 parsing of certain invalid structures that can result
5034 in a denial of service. (CVE-2006-2937) [Steve Henson]
5036 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
5037 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
5039 *) Fix SSL client code which could crash if connecting to a
5040 malicious SSLv2 server. (CVE-2006-4343)
5041 [Tavis Ormandy and Will Drewry, Google Security Team]
5043 *) Change ciphersuite string processing so that an explicit
5044 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
5045 will no longer include "AES128-SHA"), and any other similar
5046 ciphersuite (same bitmap) from *other* protocol versions (so that
5047 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
5048 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
5049 changes from 0.9.8b and 0.9.8d.
5052 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
5054 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
5055 (CVE-2006-4339) [Ben Laurie and Google Security Team]
5057 *) Change the Unix randomness entropy gathering to use poll() when
5058 possible instead of select(), since the latter has some
5059 undesirable limitations.
5060 [Darryl Miles via Richard Levitte and Bodo Moeller]
5062 *) Disable rogue ciphersuites:
5064 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
5065 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
5066 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
5068 The latter two were purportedly from
5069 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
5072 Also deactive the remaining ciphersuites from
5073 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
5074 unofficial, and the ID has long expired.
5077 *) Fix RSA blinding Heisenbug (problems sometimes occurred on
5078 dual-core machines) and other potential thread-safety issues.
5081 Changes between 0.9.7i and 0.9.7j [04 May 2006]
5083 *) Adapt fipsld and the build system to link against the validated FIPS
5084 module in FIPS mode.
5087 *) Fixes for VC++ 2005 build under Windows.
5090 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
5091 from a Windows bash shell such as MSYS. It is autodetected from the
5092 "config" script when run from a VC++ environment. Modify standard VC++
5093 build to use fipscanister.o from the GNU make build.
5096 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
5098 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
5099 The value now differs depending on if you build for FIPS or not.
5100 BEWARE! A program linked with a shared FIPSed libcrypto can't be
5101 safely run with a non-FIPSed libcrypto, as it may crash because of
5102 the difference induced by this change.
5105 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
5107 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
5108 (part of SSL_OP_ALL). This option used to disable the
5109 countermeasure against man-in-the-middle protocol-version
5110 rollback in the SSL 2.0 server implementation, which is a bad
5111 idea. (CVE-2005-2969)
5113 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
5114 for Information Security, National Institute of Advanced Industrial
5115 Science and Technology [AIST], Japan)]
5117 *) Minimal support for X9.31 signatures and PSS padding modes. This is
5118 mainly for FIPS compliance and not fully integrated at this stage.
5121 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
5122 the exponentiation using a fixed-length exponent. (Otherwise,
5123 the information leaked through timing could expose the secret key
5124 after many signatures; cf. Bleichenbacher's attack on DSA with
5128 *) Make a new fixed-window mod_exp implementation the default for
5129 RSA, DSA, and DH private-key operations so that the sequence of
5130 squares and multiplies and the memory access pattern are
5131 independent of the particular secret key. This will mitigate
5132 cache-timing and potential related attacks.
5134 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
5135 and this is automatically used by BN_mod_exp_mont() if the new flag
5136 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
5137 will use this BN flag for private exponents unless the flag
5138 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
5139 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
5141 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
5143 *) Change the client implementation for SSLv23_method() and
5144 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
5145 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
5146 (Previously, the SSL 2.0 backwards compatible Client Hello
5147 message format would be used even with SSL_OP_NO_SSLv2.)
5150 *) Add support for smime-type MIME parameter in S/MIME messages which some
5154 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
5155 a threadsafe manner. Modify rsa code to use new function and add calls
5156 to dsa and dh code (which had race conditions before).
5159 *) Include the fixed error library code in the C error file definitions
5160 instead of fixing them up at runtime. This keeps the error code
5161 structures constant.
5164 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
5166 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
5169 *) Fixes for newer kerberos headers. NB: the casts are needed because
5170 the 'length' field is signed on one version and unsigned on another
5171 with no (?) obvious way to tell the difference, without these VC++
5172 complains. Also the "definition" of FAR (blank) is no longer included
5173 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
5174 some needed definitions.
5177 *) Undo Cygwin change.
5180 *) Added support for proxy certificates according to RFC 3820.
5181 Because they may be a security thread to unaware applications,
5182 they must be explicitly allowed in run-time. See
5183 docs/HOWTO/proxy_certificates.txt for further information.
5186 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
5188 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
5189 server and client random values. Previously
5190 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
5191 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
5193 This change has negligible security impact because:
5195 1. Server and client random values still have 24 bytes of pseudo random
5198 2. Server and client random values are sent in the clear in the initial
5201 3. The master secret is derived using the premaster secret (48 bytes in
5202 size for static RSA ciphersuites) as well as client server and random
5205 The OpenSSL team would like to thank the UK NISCC for bringing this issue
5208 [Stephen Henson, reported by UK NISCC]
5210 *) Use Windows randomness collection on Cygwin.
5213 *) Fix hang in EGD/PRNGD query when communication socket is closed
5214 prematurely by EGD/PRNGD.
5215 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
5217 *) Prompt for pass phrases when appropriate for PKCS12 input format.
5220 *) Back-port of selected performance improvements from development
5221 branch, as well as improved support for PowerPC platforms.
5224 *) Add lots of checks for memory allocation failure, error codes to indicate
5225 failure and freeing up memory if a failure occurs.
5226 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
5228 *) Add new -passin argument to dgst.
5231 *) Perform some character comparisons of different types in X509_NAME_cmp:
5232 this is needed for some certificates that reencode DNs into UTF8Strings
5233 (in violation of RFC3280) and can't or wont issue name rollover
5237 *) Make an explicit check during certificate validation to see that
5238 the CA setting in each certificate on the chain is correct. As a
5239 side effect always do the following basic checks on extensions,
5240 not just when there's an associated purpose to the check:
5242 - if there is an unhandled critical extension (unless the user
5243 has chosen to ignore this fault)
5244 - if the path length has been exceeded (if one is set at all)
5245 - that certain extensions fit the associated purpose (if one has
5249 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
5251 *) Avoid a race condition when CRLs are checked in a multi threaded
5252 environment. This would happen due to the reordering of the revoked
5253 entries during signature checking and serial number lookup. Now the
5254 encoding is cached and the serial number sort performed under a lock.
5255 Add new STACK function sk_is_sorted().
5258 *) Add Delta CRL to the extension code.
5261 *) Various fixes to s3_pkt.c so alerts are sent properly.
5262 [David Holmes <d.holmes@f5.com>]
5264 *) Reduce the chances of duplicate issuer name and serial numbers (in
5265 violation of RFC3280) using the OpenSSL certificate creation utilities.
5266 This is done by creating a random 64 bit value for the initial serial
5267 number when a serial number file is created or when a self signed
5268 certificate is created using 'openssl req -x509'. The initial serial
5269 number file is created using 'openssl x509 -next_serial' in CA.pl
5270 rather than being initialized to 1.
5273 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
5275 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5276 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5277 [Joe Orton, Steve Henson]
5279 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
5281 [Joe Orton, Steve Henson]
5283 *) Make it possible to have multiple active certificates with the same
5284 subject in the CA index file. This is done only if the keyword
5285 'unique_subject' is set to 'no' in the main CA section (default
5286 if 'CA_default') of the configuration file. The value is saved
5287 with the database itself in a separate index attribute file,
5288 named like the index file with '.attr' appended to the name.
5291 *) X509 verify fixes. Disable broken certificate workarounds when
5292 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
5293 keyUsage extension present. Don't accept CRLs with unhandled critical
5294 extensions: since verify currently doesn't process CRL extensions this
5295 rejects a CRL with *any* critical extensions. Add new verify error codes
5299 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
5300 A clarification of RFC2560 will require the use of OCTET STRINGs and
5301 some implementations cannot handle the current raw format. Since OpenSSL
5302 copies and compares OCSP nonces as opaque blobs without any attempt at
5303 parsing them this should not create any compatibility issues.
5306 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
5307 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
5308 this HMAC (and other) operations are several times slower than OpenSSL
5312 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
5313 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
5315 *) Use the correct content when signing type "other".
5318 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
5320 *) Fix various bugs revealed by running the NISCC test suite:
5322 Stop out of bounds reads in the ASN1 code when presented with
5323 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5325 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
5327 If verify callback ignores invalid public key errors don't try to check
5328 certificate signature with the NULL public key.
5332 *) New -ignore_err option in ocsp application to stop the server
5333 exiting on the first error in a request.
5336 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5337 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5341 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5342 extra data after the compression methods not only for TLS 1.0
5343 but also for SSL 3.0 (as required by the specification).
5344 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5346 *) Change X509_certificate_type() to mark the key as exported/exportable
5347 when it's 512 *bits* long, not 512 bytes.
5350 *) Change AES_cbc_encrypt() so it outputs exact multiple of
5351 blocks during encryption.
5354 *) Various fixes to base64 BIO and non blocking I/O. On write
5355 flushes were not handled properly if the BIO retried. On read
5356 data was not being buffered properly and had various logic bugs.
5357 This also affects blocking I/O when the data being decoded is a
5361 *) Various S/MIME bugfixes and compatibility changes:
5362 output correct application/pkcs7 MIME type if
5363 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
5364 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
5365 of files as .eml work). Correctly handle very long lines in MIME
5369 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
5371 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5372 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5373 a protocol version number mismatch like a decryption error
5374 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5377 *) Turn on RSA blinding by default in the default implementation
5378 to avoid a timing attack. Applications that don't want it can call
5379 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5380 They would be ill-advised to do so in most cases.
5381 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5383 *) Change RSA blinding code so that it works when the PRNG is not
5384 seeded (in this case, the secret RSA exponent is abused as
5385 an unpredictable seed -- if it is not unpredictable, there
5386 is no point in blinding anyway). Make RSA blinding thread-safe
5387 by remembering the creator's thread ID in rsa->blinding and
5388 having all other threads use local one-time blinding factors
5389 (this requires more computation than sharing rsa->blinding, but
5390 avoids excessive locking; and if an RSA object is not shared
5391 between threads, blinding will still be very fast).
5394 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
5395 ENGINE as defaults for all supported algorithms irrespective of
5396 the 'flags' parameter. 'flags' is now honoured, so applications
5397 should make sure they are passing it correctly.
5400 *) Target "mingw" now allows native Windows code to be generated in
5401 the Cygwin environment as well as with the MinGW compiler.
5404 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
5406 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5407 via timing by performing a MAC computation even if incorrect
5408 block cipher padding has been found. This is a countermeasure
5409 against active attacks where the attacker has to distinguish
5410 between bad padding and a MAC verification error. (CVE-2003-0078)
5412 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5413 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5414 Martin Vuagnoux (EPFL, Ilion)]
5416 *) Make the no-err option work as intended. The intention with no-err
5417 is not to have the whole error stack handling routines removed from
5418 libcrypto, it's only intended to remove all the function name and
5419 reason texts, thereby removing some of the footprint that may not
5420 be interesting if those errors aren't displayed anyway.
5422 NOTE: it's still possible for any application or module to have it's
5423 own set of error texts inserted. The routines are there, just not
5424 used by default when no-err is given.
5427 *) Add support for FreeBSD on IA64.
5428 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
5430 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
5431 Kerberos function mit_des_cbc_cksum(). Before this change,
5432 the value returned by DES_cbc_cksum() was like the one from
5433 mit_des_cbc_cksum(), except the bytes were swapped.
5434 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
5436 *) Allow an application to disable the automatic SSL chain building.
5437 Before this a rather primitive chain build was always performed in
5438 ssl3_output_cert_chain(): an application had no way to send the
5439 correct chain if the automatic operation produced an incorrect result.
5441 Now the chain builder is disabled if either:
5443 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
5445 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
5447 The reasoning behind this is that an application would not want the
5448 auto chain building to take place if extra chain certificates are
5449 present and it might also want a means of sending no additional
5450 certificates (for example the chain has two certificates and the
5454 *) Add the possibility to build without the ENGINE framework.
5455 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
5457 *) Under Win32 gmtime() can return NULL: check return value in
5458 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
5461 *) DSA routines: under certain error conditions uninitialized BN objects
5462 could be freed. Solution: make sure initialization is performed early
5463 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
5464 Nils Larsch <nla@trustcenter.de> via PR#459)
5467 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
5468 checked on reconnect on the client side, therefore session resumption
5469 could still fail with a "ssl session id is different" error. This
5470 behaviour is masked when SSL_OP_ALL is used due to
5471 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
5472 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
5473 followup to PR #377.
5476 *) IA-32 assembler support enhancements: unified ELF targets, support
5477 for SCO/Caldera platforms, fix for Cygwin shared build.
5480 *) Add support for FreeBSD on sparc64. As a consequence, support for
5481 FreeBSD on non-x86 processors is separate from x86 processors on
5482 the config script, much like the NetBSD support.
5483 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
5485 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
5487 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
5490 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
5491 code (06) was taken as the first octet of the session ID and the last
5492 octet was ignored consequently. As a result SSLv2 client side session
5493 caching could not have worked due to the session ID mismatch between
5495 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
5499 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
5500 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
5504 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
5505 seems that in spite of existing for more than a year, many application
5506 author have done nothing to provide the necessary callbacks, which
5507 means that this particular engine will not work properly anywhere.
5508 This is a very unfortunate situation which forces us, in the name
5509 of usability, to give the hw_ncipher.c a static lock, which is part
5511 NOTE: This is for the 0.9.7 series ONLY. This hack will never
5512 appear in 0.9.8 or later. We EXPECT application authors to have
5513 dealt properly with this when 0.9.8 is released (unless we actually
5514 make such changes in the libcrypto locking code that changes will
5515 have to be made anyway).
5518 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
5519 octets have been read, EOF or an error occurs. Without this change
5520 some truncated ASN1 structures will not produce an error.
5523 *) Disable Heimdal support, since it hasn't been fully implemented.
5524 Still give the possibility to force the use of Heimdal, but with
5525 warnings and a request that patches get sent to openssl-dev.
5528 *) Add the VC-CE target, introduce the WINCE sysname, and add
5529 INSTALL.WCE and appropriate conditionals to make it build.
5530 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
5532 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
5533 cygssl-x.y.z.dll, where x, y and z are the major, minor and
5534 edit numbers of the version.
5535 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5537 *) Introduce safe string copy and catenation functions
5538 (BUF_strlcpy() and BUF_strlcat()).
5539 [Ben Laurie (CHATS) and Richard Levitte]
5541 *) Avoid using fixed-size buffers for one-line DNs.
5542 [Ben Laurie (CHATS)]
5544 *) Add BUF_MEM_grow_clean() to avoid information leakage when
5545 resizing buffers containing secrets, and use where appropriate.
5546 [Ben Laurie (CHATS)]
5548 *) Avoid using fixed size buffers for configuration file location.
5549 [Ben Laurie (CHATS)]
5551 *) Avoid filename truncation for various CA files.
5552 [Ben Laurie (CHATS)]
5554 *) Use sizeof in preference to magic numbers.
5555 [Ben Laurie (CHATS)]
5557 *) Avoid filename truncation in cert requests.
5558 [Ben Laurie (CHATS)]
5560 *) Add assertions to check for (supposedly impossible) buffer
5562 [Ben Laurie (CHATS)]
5564 *) Don't cache truncated DNS entries in the local cache (this could
5565 potentially lead to a spoofing attack).
5566 [Ben Laurie (CHATS)]
5568 *) Fix various buffers to be large enough for hex/decimal
5569 representations in a platform independent manner.
5570 [Ben Laurie (CHATS)]
5572 *) Add CRYPTO_realloc_clean() to avoid information leakage when
5573 resizing buffers containing secrets, and use where appropriate.
5574 [Ben Laurie (CHATS)]
5576 *) Add BIO_indent() to avoid much slightly worrying code to do
5578 [Ben Laurie (CHATS)]
5580 *) Convert sprintf()/BIO_puts() to BIO_printf().
5581 [Ben Laurie (CHATS)]
5583 *) buffer_gets() could terminate with the buffer only half
5585 [Ben Laurie (CHATS)]
5587 *) Add assertions to prevent user-supplied crypto functions from
5588 overflowing internal buffers by having large block sizes, etc.
5589 [Ben Laurie (CHATS)]
5591 *) New OPENSSL_assert() macro (similar to assert(), but enabled
5593 [Ben Laurie (CHATS)]
5595 *) Eliminate unused copy of key in RC4.
5596 [Ben Laurie (CHATS)]
5598 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
5599 [Ben Laurie (CHATS)]
5601 *) Fix off-by-one error in EGD path.
5602 [Ben Laurie (CHATS)]
5604 *) If RANDFILE path is too long, ignore instead of truncating.
5605 [Ben Laurie (CHATS)]
5607 *) Eliminate unused and incorrectly sized X.509 structure
5609 [Ben Laurie (CHATS)]
5611 *) Eliminate unused and dangerous function knumber().
5612 [Ben Laurie (CHATS)]
5614 *) Eliminate unused and dangerous structure, KSSL_ERR.
5615 [Ben Laurie (CHATS)]
5617 *) Protect against overlong session ID context length in an encoded
5618 session object. Since these are local, this does not appear to be
5620 [Ben Laurie (CHATS)]
5622 *) Change from security patch (see 0.9.6e below) that did not affect
5623 the 0.9.6 release series:
5625 Remote buffer overflow in SSL3 protocol - an attacker could
5626 supply an oversized master key in Kerberos-enabled versions.
5628 [Ben Laurie (CHATS)]
5630 *) Change the SSL kerb5 codes to match RFC 2712.
5633 *) Make -nameopt work fully for req and add -reqopt switch.
5634 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
5636 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
5637 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
5639 *) Make sure tests can be performed even if the corresponding algorithms
5640 have been removed entirely. This was also the last step to make
5641 OpenSSL compilable with DJGPP under all reasonable conditions.
5642 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
5644 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
5645 to allow version independent disabling of normally unselected ciphers,
5646 which may be activated as a side-effect of selecting a single cipher.
5648 (E.g., cipher list string "RSA" enables ciphersuites that are left
5649 out of "ALL" because they do not provide symmetric encryption.
5650 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
5651 [Lutz Jaenicke, Bodo Moeller]
5653 *) Add appropriate support for separate platform-dependent build
5654 directories. The recommended way to make a platform-dependent
5655 build directory is the following (tested on Linux), maybe with
5658 # Place yourself outside of the OpenSSL source tree. In
5659 # this example, the environment variable OPENSSL_SOURCE
5660 # is assumed to contain the absolute OpenSSL source directory.
5661 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
5662 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
5663 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
5664 mkdir -p `dirname $F`
5665 ln -s $OPENSSL_SOURCE/$F $F
5668 To be absolutely sure not to disturb the source tree, a "make clean"
5669 is a good thing. If it isn't successful, don't worry about it,
5670 it probably means the source directory is very clean.
5673 *) Make sure any ENGINE control commands make local copies of string
5674 pointers passed to them whenever necessary. Otherwise it is possible
5675 the caller may have overwritten (or deallocated) the original string
5676 data when a later ENGINE operation tries to use the stored values.
5677 [Götz Babin-Ebell <babinebell@trustcenter.de>]
5679 *) Improve diagnostics in file reading and command-line digests.
5680 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
5682 *) Add AES modes CFB and OFB to the object database. Correct an
5683 error in AES-CFB decryption.
5686 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
5687 allows existing EVP_CIPHER_CTX structures to be reused after
5688 calling EVP_*Final(). This behaviour is used by encryption
5689 BIOs and some applications. This has the side effect that
5690 applications must explicitly clean up cipher contexts with
5691 EVP_CIPHER_CTX_cleanup() or they will leak memory.
5694 *) Check the values of dna and dnb in bn_mul_recursive before calling
5695 bn_mul_comba (a non zero value means the a or b arrays do not contain
5696 n2 elements) and fallback to bn_mul_normal if either is not zero.
5699 *) Fix escaping of non-ASCII characters when using the -subj option
5700 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
5703 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
5704 form for "surname", serialNumber has no short form.
5705 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
5706 therefore remove "mail" short name for "internet 7".
5707 The OID for unique identifiers in X509 certificates is
5708 x500UniqueIdentifier, not uniqueIdentifier.
5709 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
5712 *) Add an "init" command to the ENGINE config module and auto initialize
5713 ENGINEs. Without any "init" command the ENGINE will be initialized
5714 after all ctrl commands have been executed on it. If init=1 the
5715 ENGINE is initailized at that point (ctrls before that point are run
5716 on the uninitialized ENGINE and after on the initialized one). If
5717 init=0 then the ENGINE will not be iniatialized at all.
5720 *) Fix the 'app_verify_callback' interface so that the user-defined
5721 argument is actually passed to the callback: In the
5722 SSL_CTX_set_cert_verify_callback() prototype, the callback
5723 declaration has been changed from
5726 int (*cb)(X509_STORE_CTX *,void *);
5727 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
5728 i=s->ctx->app_verify_callback(&ctx)
5729 has been changed into
5730 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
5732 To update applications using SSL_CTX_set_cert_verify_callback(),
5733 a dummy argument can be added to their callback functions.
5734 [D. K. Smetters <smetters@parc.xerox.com>]
5736 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
5737 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
5739 *) Add and OPENSSL_LOAD_CONF define which will cause
5740 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
5741 This allows older applications to transparently support certain
5742 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
5743 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
5744 load the config file and OPENSSL_add_all_algorithms_conf() which will
5745 always load it have also been added.
5748 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
5749 Adjust NIDs and EVP layer.
5750 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
5752 *) Config modules support in openssl utility.
5754 Most commands now load modules from the config file,
5755 though in a few (such as version) this isn't done
5756 because it couldn't be used for anything.
5758 In the case of ca and req the config file used is
5759 the same as the utility itself: that is the -config
5760 command line option can be used to specify an
5764 *) Move default behaviour from OPENSSL_config(). If appname is NULL
5765 use "openssl_conf" if filename is NULL use default openssl config file.
5768 *) Add an argument to OPENSSL_config() to allow the use of an alternative
5769 config section name. Add a new flag to tolerate a missing config file
5770 and move code to CONF_modules_load_file().
5773 *) Support for crypto accelerator cards from Accelerated Encryption
5774 Processing, www.aep.ie. (Use engine 'aep')
5775 The support was copied from 0.9.6c [engine] and adapted/corrected
5776 to work with the new engine framework.
5777 [AEP Inc. and Richard Levitte]
5779 *) Support for SureWare crypto accelerator cards from Baltimore
5780 Technologies. (Use engine 'sureware')
5781 The support was copied from 0.9.6c [engine] and adapted
5782 to work with the new engine framework.
5785 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
5786 make the newer ENGINE framework commands for the CHIL engine work.
5787 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
5789 *) Make it possible to produce shared libraries on ReliantUNIX.
5790 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
5792 *) Add the configuration target debug-linux-ppro.
5793 Make 'openssl rsa' use the general key loading routines
5794 implemented in apps.c, and make those routines able to
5795 handle the key format FORMAT_NETSCAPE and the variant
5797 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5799 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5800 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5802 *) Add -keyform to rsautl, and document -engine.
5803 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
5805 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
5806 BIO_R_NO_SUCH_FILE error code rather than the generic
5807 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
5810 *) Add new functions
5812 ERR_peek_last_error_line
5813 ERR_peek_last_error_line_data.
5814 These are similar to
5817 ERR_peek_error_line_data,
5818 but report on the latest error recorded rather than the first one
5819 still in the error queue.
5820 [Ben Laurie, Bodo Moeller]
5822 *) default_algorithms option in ENGINE config module. This allows things
5824 default_algorithms = ALL
5825 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
5828 *) Preliminary ENGINE config module.
5831 *) New experimental application configuration code.
5834 *) Change the AES code to follow the same name structure as all other
5835 symmetric ciphers, and behave the same way. Move everything to
5836 the directory crypto/aes, thereby obsoleting crypto/rijndael.
5837 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
5839 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
5840 [Ben Laurie and Theo de Raadt]
5842 *) Add option to output public keys in req command.
5843 [Massimiliano Pala madwolf@openca.org]
5845 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
5846 (up to about 10% better than before for P-192 and P-224).
5849 *) New functions/macros
5851 SSL_CTX_set_msg_callback(ctx, cb)
5852 SSL_CTX_set_msg_callback_arg(ctx, arg)
5853 SSL_set_msg_callback(ssl, cb)
5854 SSL_set_msg_callback_arg(ssl, arg)
5856 to request calling a callback function
5858 void cb(int write_p, int version, int content_type,
5859 const void *buf, size_t len, SSL *ssl, void *arg)
5861 whenever a protocol message has been completely received
5862 (write_p == 0) or sent (write_p == 1). Here 'version' is the
5863 protocol version according to which the SSL library interprets
5864 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
5865 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
5866 the content type as defined in the SSL 3.0/TLS 1.0 protocol
5867 specification (change_cipher_spec(20), alert(21), handshake(22)).
5868 'buf' and 'len' point to the actual message, 'ssl' to the
5869 SSL object, and 'arg' is the application-defined value set by
5870 SSL[_CTX]_set_msg_callback_arg().
5872 'openssl s_client' and 'openssl s_server' have new '-msg' options
5873 to enable a callback that displays all protocol messages.
5876 *) Change the shared library support so shared libraries are built as
5877 soon as the corresponding static library is finished, and thereby get
5878 openssl and the test programs linked against the shared library.
5879 This still only happens when the keyword "shard" has been given to
5880 the configuration scripts.
5882 NOTE: shared library support is still an experimental thing, and
5883 backward binary compatibility is still not guaranteed.
5884 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
5886 *) Add support for Subject Information Access extension.
5887 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
5889 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
5890 additional bytes when new memory had to be allocated, not just
5891 when reusing an existing buffer.
5894 *) New command line and configuration option 'utf8' for the req command.
5895 This allows field values to be specified as UTF8 strings.
5898 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
5899 runs for the former and machine-readable output for the latter.
5902 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
5903 of the e-mail address in the DN (i.e., it will go into a certificate
5904 extension only). The new configuration file option 'email_in_dn = no'
5905 has the same effect.
5906 [Massimiliano Pala madwolf@openca.org]
5908 *) Change all functions with names starting with des_ to be starting
5909 with DES_ instead. Add wrappers that are compatible with libdes,
5910 but are named _ossl_old_des_*. Finally, add macros that map the
5911 des_* symbols to the corresponding _ossl_old_des_* if libdes
5912 compatibility is desired. If OpenSSL 0.9.6c compatibility is
5913 desired, the des_* symbols will be mapped to DES_*, with one
5916 Since we provide two compatibility mappings, the user needs to
5917 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
5918 compatibility is desired. The default (i.e., when that macro
5919 isn't defined) is OpenSSL 0.9.6c compatibility.
5921 There are also macros that enable and disable the support of old
5922 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
5923 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
5924 are defined, the default will apply: to support the old des routines.
5926 In either case, one must include openssl/des.h to get the correct
5927 definitions. Do not try to just include openssl/des_old.h, that
5930 NOTE: This is a major break of an old API into a new one. Software
5931 authors are encouraged to switch to the DES_ style functions. Some
5932 time in the future, des_old.h and the libdes compatibility functions
5933 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
5934 default), and then completely removed.
5937 *) Test for certificates which contain unsupported critical extensions.
5938 If such a certificate is found during a verify operation it is
5939 rejected by default: this behaviour can be overridden by either
5940 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
5941 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
5942 X509_supported_extension() has also been added which returns 1 if a
5943 particular extension is supported.
5946 *) Modify the behaviour of EVP cipher functions in similar way to digests
5947 to retain compatibility with existing code.
5950 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
5951 compatibility with existing code. In particular the 'ctx' parameter does
5952 not have to be to be initialized before the call to EVP_DigestInit() and
5953 it is tidied up after a call to EVP_DigestFinal(). New function
5954 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
5955 EVP_MD_CTX_copy() changed to not require the destination to be
5956 initialized valid and new function EVP_MD_CTX_copy_ex() added which
5957 requires the destination to be valid.
5959 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
5960 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
5963 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
5964 so that complete 'Handshake' protocol structures are kept in memory
5965 instead of overwriting 'msg_type' and 'length' with 'body' data.
5968 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
5969 [Massimo Santin via Richard Levitte]
5971 *) Major restructuring to the underlying ENGINE code. This includes
5972 reduction of linker bloat, separation of pure "ENGINE" manipulation
5973 (initialisation, etc) from functionality dealing with implementations
5974 of specific crypto iterfaces. This change also introduces integrated
5975 support for symmetric ciphers and digest implementations - so ENGINEs
5976 can now accelerate these by providing EVP_CIPHER and EVP_MD
5977 implementations of their own. This is detailed in crypto/engine/README
5978 as it couldn't be adequately described here. However, there are a few
5979 API changes worth noting - some RSA, DSA, DH, and RAND functions that
5980 were changed in the original introduction of ENGINE code have now
5981 reverted back - the hooking from this code to ENGINE is now a good
5982 deal more passive and at run-time, operations deal directly with
5983 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
5984 dereferencing through an ENGINE pointer any more. Also, the ENGINE
5985 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
5986 they were not being used by the framework as there is no concept of a
5987 BIGNUM_METHOD and they could not be generalised to the new
5988 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
5989 ENGINE_cpy() has been removed as it cannot be consistently defined in
5993 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
5996 *) Change mkdef.pl to sort symbols that get the same entry number,
5997 and make sure the automatically generated functions ERR_load_*
5998 become part of libeay.num as well.
6001 *) New function SSL_renegotiate_pending(). This returns true once
6002 renegotiation has been requested (either SSL_renegotiate() call
6003 or HelloRequest/ClientHello received from the peer) and becomes
6004 false once a handshake has been completed.
6005 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
6006 sends a HelloRequest, but does not ensure that a handshake takes
6007 place. SSL_renegotiate_pending() is useful for checking if the
6008 client has followed the request.)
6011 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
6012 By default, clients may request session resumption even during
6013 renegotiation (if session ID contexts permit); with this option,
6014 session resumption is possible only in the first handshake.
6016 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
6017 more bits available for options that should not be part of
6018 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
6021 *) Add some demos for certificate and certificate request creation.
6024 *) Make maximum certificate chain size accepted from the peer application
6025 settable (SSL*_get/set_max_cert_list()), as proposed by
6026 "Douglas E. Engert" <deengert@anl.gov>.
6029 *) Add support for shared libraries for Unixware-7
6030 (Boyd Lynn Gerber <gerberb@zenez.com>).
6033 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
6034 be done prior to destruction. Use this to unload error strings from
6035 ENGINEs that load their own error strings. NB: This adds two new API
6036 functions to "get" and "set" this destroy handler in an ENGINE.
6039 *) Alter all existing ENGINE implementations (except "openssl" and
6040 "openbsd") to dynamically instantiate their own error strings. This
6041 makes them more flexible to be built both as statically-linked ENGINEs
6042 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
6043 Also, add stub code to each that makes building them as self-contained
6044 shared-libraries easier (see README.ENGINE).
6047 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
6048 implementations into applications that are completely implemented in
6049 self-contained shared-libraries. The "dynamic" ENGINE exposes control
6050 commands that can be used to configure what shared-library to load and
6051 to control aspects of the way it is handled. Also, made an update to
6052 the README.ENGINE file that brings its information up-to-date and
6053 provides some information and instructions on the "dynamic" ENGINE
6054 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
6057 *) Make it possible to unload ranges of ERR strings with a new
6058 "ERR_unload_strings" function.
6061 *) Add a copy() function to EVP_MD.
6064 *) Make EVP_MD routines take a context pointer instead of just the
6065 md_data void pointer.
6068 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
6069 that the digest can only process a single chunk of data
6070 (typically because it is provided by a piece of
6071 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
6072 is only going to provide a single chunk of data, and hence the
6073 framework needn't accumulate the data for oneshot drivers.
6076 *) As with "ERR", make it possible to replace the underlying "ex_data"
6077 functions. This change also alters the storage and management of global
6078 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
6079 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
6080 index counters. The API functions that use this state have been changed
6081 to take a "class_index" rather than pointers to the class's local STACK
6082 and counter, and there is now an API function to dynamically create new
6083 classes. This centralisation allows us to (a) plug a lot of the
6084 thread-safety problems that existed, and (b) makes it possible to clean
6085 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
6086 such data would previously have always leaked in application code and
6087 workarounds were in place to make the memory debugging turn a blind eye
6088 to it. Application code that doesn't use this new function will still
6089 leak as before, but their memory debugging output will announce it now
6090 rather than letting it slide.
6092 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
6093 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
6094 has a return value to indicate success or failure.
6097 *) Make it possible to replace the underlying "ERR" functions such that the
6098 global state (2 LHASH tables and 2 locks) is only used by the "default"
6099 implementation. This change also adds two functions to "get" and "set"
6100 the implementation prior to it being automatically set the first time
6101 any other ERR function takes place. Ie. an application can call "get",
6102 pass the return value to a module it has just loaded, and that module
6103 can call its own "set" function using that value. This means the
6104 module's "ERR" operations will use (and modify) the error state in the
6105 application and not in its own statically linked copy of OpenSSL code.
6108 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
6109 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
6110 the operation, and provides a more encapsulated way for external code
6111 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
6112 to use these functions rather than manually incrementing the counts.
6114 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
6117 *) Add EVP test program.
6120 *) Add symmetric cipher support to ENGINE. Expect the API to change!
6123 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
6124 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
6125 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
6126 These allow a CRL to be built without having to access X509_CRL fields
6127 directly. Modify 'ca' application to use new functions.
6130 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
6131 bug workarounds. Rollback attack detection is a security feature.
6132 The problem will only arise on OpenSSL servers when TLSv1 is not
6133 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
6134 Software authors not wanting to support TLSv1 will have special reasons
6135 for their choice and can explicitly enable this option.
6136 [Bodo Moeller, Lutz Jaenicke]
6138 *) Rationalise EVP so it can be extended: don't include a union of
6139 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
6140 (similar to those existing for EVP_CIPHER_CTX).
6145 EVP_MD_CTX_init(&md); /* new function call */
6146 EVP_DigestInit(&md, EVP_sha1());
6147 EVP_DigestUpdate(&md, in, len);
6148 EVP_DigestFinal(&md, out, NULL);
6149 EVP_MD_CTX_cleanup(&md); /* new function call */
6153 *) Make DES key schedule conform to the usual scheme, as well as
6154 correcting its structure. This means that calls to DES functions
6155 now have to pass a pointer to a des_key_schedule instead of a
6156 plain des_key_schedule (which was actually always a pointer
6159 des_key_schedule ks;
6161 des_set_key_checked(..., &ks);
6162 des_ncbc_encrypt(..., &ks, ...);
6164 (Note that a later change renames 'des_...' into 'DES_...'.)
6167 *) Initial reduction of linker bloat: the use of some functions, such as
6168 PEM causes large amounts of unused functions to be linked in due to
6169 poor organisation. For example pem_all.c contains every PEM function
6170 which has a knock on effect of linking in large amounts of (unused)
6171 ASN1 code. Grouping together similar functions and splitting unrelated
6172 functions prevents this.
6175 *) Cleanup of EVP macros.
6178 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
6179 correct _ecb suffix.
6182 *) Add initial OCSP responder support to ocsp application. The
6183 revocation information is handled using the text based index
6184 use by the ca application. The responder can either handle
6185 requests generated internally, supplied in files (for example
6186 via a CGI script) or using an internal minimal server.
6189 *) Add configuration choices to get zlib compression for TLS.
6192 *) Changes to Kerberos SSL for RFC 2712 compliance:
6193 1. Implemented real KerberosWrapper, instead of just using
6194 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
6195 2. Implemented optional authenticator field of KerberosWrapper.
6197 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
6198 and authenticator structs; see crypto/krb5/.
6200 Generalized Kerberos calls to support multiple Kerberos libraries.
6201 [Vern Staats <staatsvr@asc.hpc.mil>,
6202 Jeffrey Altman <jaltman@columbia.edu>
6203 via Richard Levitte]
6205 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
6206 already does with RSA. testdsa.h now has 'priv_key/pub_key'
6207 values for each of the key sizes rather than having just
6208 parameters (and 'speed' generating keys each time).
6211 *) Speed up EVP routines.
6214 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
6215 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
6216 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
6217 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
6219 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
6220 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
6221 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
6224 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
6226 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
6229 *) Added the OS2-EMX target.
6230 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
6232 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
6233 to support NCONF routines in extension code. New function CONF_set_nconf()
6234 to allow functions which take an NCONF to also handle the old LHASH
6235 structure: this means that the old CONF compatible routines can be
6236 retained (in particular wrt extensions) without having to duplicate the
6237 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
6240 *) Enhance the general user interface with mechanisms for inner control
6241 and with possibilities to have yes/no kind of prompts.
6244 *) Change all calls to low level digest routines in the library and
6245 applications to use EVP. Add missing calls to HMAC_cleanup() and
6246 don't assume HMAC_CTX can be copied using memcpy().
6247 [Verdon Walker <VWalker@novell.com>, Steve Henson]
6249 *) Add the possibility to control engines through control names but with
6250 arbitrary arguments instead of just a string.
6251 Change the key loaders to take a UI_METHOD instead of a callback
6252 function pointer. NOTE: this breaks binary compatibility with earlier
6253 versions of OpenSSL [engine].
6254 Adapt the nCipher code for these new conditions and add a card insertion
6258 *) Enhance the general user interface with mechanisms to better support
6259 dialog box interfaces, application-defined prompts, the possibility
6260 to use defaults (for example default passwords from somewhere else)
6261 and interrupts/cancellations.
6264 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
6265 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
6268 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
6269 tidy up some unnecessarily weird code in 'sk_new()').
6270 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
6272 *) Change the key loading routines for ENGINEs to use the same kind
6273 callback (pem_password_cb) as all other routines that need this
6277 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
6278 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
6279 than this minimum value is recommended.
6282 *) New random seeder for OpenVMS, using the system process statistics
6283 that are easily reachable.
6286 *) Windows apparently can't transparently handle global
6287 variables defined in DLLs. Initialisations such as:
6289 const ASN1_ITEM *it = &ASN1_INTEGER_it;
6291 wont compile. This is used by the any applications that need to
6292 declare their own ASN1 modules. This was fixed by adding the option
6293 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
6294 needed for static libraries under Win32.
6297 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
6298 setting of purpose and trust fields. New X509_STORE trust and
6299 purpose functions and tidy up setting in other SSL functions.
6302 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
6303 structure. These are inherited by X509_STORE_CTX when it is
6304 initialised. This allows various defaults to be set in the
6305 X509_STORE structure (such as flags for CRL checking and custom
6306 purpose or trust settings) for functions which only use X509_STORE_CTX
6307 internally such as S/MIME.
6309 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
6310 trust settings if they are not set in X509_STORE. This allows X509_STORE
6311 purposes and trust (in S/MIME for example) to override any set by default.
6313 Add command line options for CRL checking to smime, s_client and s_server
6317 *) Initial CRL based revocation checking. If the CRL checking flag(s)
6318 are set then the CRL is looked up in the X509_STORE structure and
6319 its validity and signature checked, then if the certificate is found
6320 in the CRL the verify fails with a revoked error.
6322 Various new CRL related callbacks added to X509_STORE_CTX structure.
6324 Command line options added to 'verify' application to support this.
6326 This needs some additional work, such as being able to handle multiple
6327 CRLs with different times, extension based lookup (rather than just
6328 by subject name) and ultimately more complete V2 CRL extension
6332 *) Add a general user interface API (crypto/ui/). This is designed
6333 to replace things like des_read_password and friends (backward
6334 compatibility functions using this new API are provided).
6335 The purpose is to remove prompting functions from the DES code
6336 section as well as provide for prompting through dialog boxes in
6337 a window system and the like.
6340 *) Add "ex_data" support to ENGINE so implementations can add state at a
6341 per-structure level rather than having to store it globally.
6344 *) Make it possible for ENGINE structures to be copied when retrieved by
6345 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
6346 This causes the "original" ENGINE structure to act like a template,
6347 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
6348 operational state can be localised to each ENGINE structure, despite the
6349 fact they all share the same "methods". New ENGINE structures returned in
6350 this case have no functional references and the return value is the single
6351 structural reference. This matches the single structural reference returned
6352 by ENGINE_by_id() normally, when it is incremented on the pre-existing
6356 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
6357 needs to match any other type at all we need to manually clear the
6361 *) Changes to the "openssl engine" utility to include;
6362 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
6363 about an ENGINE's available control commands.
6364 - executing control commands from command line arguments using the
6365 '-pre' and '-post' switches. '-post' is only used if '-t' is
6366 specified and the ENGINE is successfully initialised. The syntax for
6367 the individual commands are colon-separated, for example;
6368 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
6371 *) New dynamic control command support for ENGINEs. ENGINEs can now
6372 declare their own commands (numbers), names (strings), descriptions,
6373 and input types for run-time discovery by calling applications. A
6374 subset of these commands are implicitly classed as "executable"
6375 depending on their input type, and only these can be invoked through
6376 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
6377 can be based on user input, config files, etc). The distinction is
6378 that "executable" commands cannot return anything other than a boolean
6379 result and can only support numeric or string input, whereas some
6380 discoverable commands may only be for direct use through
6381 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
6382 pointers, or other custom uses. The "executable" commands are to
6383 support parameterisations of ENGINE behaviour that can be
6384 unambiguously defined by ENGINEs and used consistently across any
6385 OpenSSL-based application. Commands have been added to all the
6386 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
6387 control over shared-library paths without source code alterations.
6390 *) Changed all ENGINE implementations to dynamically allocate their
6391 ENGINEs rather than declaring them statically. Apart from this being
6392 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
6393 this also allows the implementations to compile without using the
6394 internal engine_int.h header.
6397 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
6398 'const' value. Any code that should be able to modify a RAND_METHOD
6399 should already have non-const pointers to it (ie. they should only
6400 modify their own ones).
6403 *) Made a variety of little tweaks to the ENGINE code.
6404 - "atalla" and "ubsec" string definitions were moved from header files
6405 to C code. "nuron" string definitions were placed in variables
6406 rather than hard-coded - allowing parameterisation of these values
6407 later on via ctrl() commands.
6408 - Removed unused "#if 0"'d code.
6409 - Fixed engine list iteration code so it uses ENGINE_free() to release
6410 structural references.
6411 - Constified the RAND_METHOD element of ENGINE structures.
6412 - Constified various get/set functions as appropriate and added
6413 missing functions (including a catch-all ENGINE_cpy that duplicates
6414 all ENGINE values onto a new ENGINE except reference counts/state).
6415 - Removed NULL parameter checks in get/set functions. Setting a method
6416 or function to NULL is a way of cancelling out a previously set
6417 value. Passing a NULL ENGINE parameter is just plain stupid anyway
6418 and doesn't justify the extra error symbols and code.
6419 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
6420 flags from engine_int.h to engine.h.
6421 - Changed prototypes for ENGINE handler functions (init(), finish(),
6422 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
6425 *) Implement binary inversion algorithm for BN_mod_inverse in addition
6426 to the algorithm using long division. The binary algorithm can be
6427 used only if the modulus is odd. On 32-bit systems, it is faster
6428 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
6429 roughly 5-15% for 256-bit moduli), so we use it only for moduli
6430 up to 450 bits. In 64-bit environments, the binary algorithm
6431 appears to be advantageous for much longer moduli; here we use it
6432 for moduli up to 2048 bits.
6435 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
6436 could not support the combine flag in choice fields.
6439 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
6440 extensions from a certificate request to the certificate.
6443 *) Allow multiple 'certopt' and 'nameopt' options to be separated
6444 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
6445 file: this allows the display of the certificate about to be
6446 signed to be customised, to allow certain fields to be included
6447 or excluded and extension details. The old system didn't display
6448 multicharacter strings properly, omitted fields not in the policy
6449 and couldn't display additional details such as extensions.
6452 *) Function EC_POINTs_mul for multiple scalar multiplication
6453 of an arbitrary number of elliptic curve points
6454 \sum scalars[i]*points[i],
6455 optionally including the generator defined for the EC_GROUP:
6456 scalar*generator + \sum scalars[i]*points[i].
6458 EC_POINT_mul is a simple wrapper function for the typical case
6459 that the point list has just one item (besides the optional
6463 *) First EC_METHODs for curves over GF(p):
6465 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
6466 operations and provides various method functions that can also
6467 operate with faster implementations of modular arithmetic.
6469 EC_GFp_mont_method() reuses most functions that are part of
6470 EC_GFp_simple_method, but uses Montgomery arithmetic.
6472 [Bodo Moeller; point addition and point doubling
6473 implementation directly derived from source code provided by
6474 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
6476 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
6477 crypto/ec/ec_lib.c):
6479 Curves are EC_GROUP objects (with an optional group generator)
6480 based on EC_METHODs that are built into the library.
6482 Points are EC_POINT objects based on EC_GROUP objects.
6484 Most of the framework would be able to handle curves over arbitrary
6485 finite fields, but as there are no obvious types for fields other
6486 than GF(p), some functions are limited to that for now.
6489 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
6490 that the file contains a complete HTTP response.
6493 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
6494 change the def and num file printf format specifier from "%-40sXXX"
6495 to "%-39s XXX". The latter will always guarantee a space after the
6496 field while the former will cause them to run together if the field
6497 is 40 of more characters long.
6500 *) Constify the cipher and digest 'method' functions and structures
6501 and modify related functions to take constant EVP_MD and EVP_CIPHER
6505 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
6506 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
6509 *) Modify EVP_Digest*() routines so they now return values. Although the
6510 internal software routines can never fail additional hardware versions
6514 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
6516 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
6517 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
6520 ERR_R_NESTED_ASN1_ERROR
6522 ERR_R_MISSING_ASN1_EOS
6523 were 4 .. 9, conflicting with
6524 ERR_LIB_RSA (= ERR_R_RSA_LIB)
6526 ERR_LIB_PEM (= ERR_R_PEM_LIB).
6527 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
6529 Add new error code 'ERR_R_INTERNAL_ERROR'.
6532 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
6536 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
6537 sets the subject name for a new request or supersedes the
6538 subject name in a given request. Formats that can be parsed are
6539 'CN=Some Name, OU=myOU, C=IT'
6541 'CN=Some Name/OU=myOU/C=IT'.
6543 Add options '-batch' and '-verbose' to 'openssl req'.
6544 [Massimiliano Pala <madwolf@hackmasters.net>]
6546 *) Introduce the possibility to access global variables through
6547 functions on platform were that's the best way to handle exporting
6548 global variables in shared libraries. To enable this functionality,
6549 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
6550 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
6551 is normally done by Configure or something similar).
6553 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
6554 in the source file (foo.c) like this:
6556 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
6557 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
6559 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
6560 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
6562 OPENSSL_DECLARE_GLOBAL(int,foo);
6563 #define foo OPENSSL_GLOBAL_REF(foo)
6564 OPENSSL_DECLARE_GLOBAL(double,bar);
6565 #define bar OPENSSL_GLOBAL_REF(bar)
6567 The #defines are very important, and therefore so is including the
6568 header file everywhere where the defined globals are used.
6570 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
6571 of ASN.1 items, but that structure is a bit different.
6573 The largest change is in util/mkdef.pl which has been enhanced with
6574 better and easier to understand logic to choose which symbols should
6575 go into the Windows .def files as well as a number of fixes and code
6576 cleanup (among others, algorithm keywords are now sorted
6577 lexicographically to avoid constant rewrites).
6580 *) In BN_div() keep a copy of the sign of 'num' before writing the
6581 result to 'rm' because if rm==num the value will be overwritten
6582 and produce the wrong result if 'num' is negative: this caused
6583 problems with BN_mod() and BN_nnmod().
6586 *) Function OCSP_request_verify(). This checks the signature on an
6587 OCSP request and verifies the signer certificate. The signer
6588 certificate is just checked for a generic purpose and OCSP request
6592 *) Add OCSP_check_validity() function to check the validity of OCSP
6593 responses. OCSP responses are prepared in real time and may only
6594 be a few seconds old. Simply checking that the current time lies
6595 between thisUpdate and nextUpdate max reject otherwise valid responses
6596 caused by either OCSP responder or client clock inaccuracy. Instead
6597 we allow thisUpdate and nextUpdate to fall within a certain period of
6598 the current time. The age of the response can also optionally be
6599 checked. Two new options -validity_period and -status_age added to
6603 *) If signature or public key algorithm is unrecognized print out its
6604 OID rather that just UNKNOWN.
6607 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
6608 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
6609 ID to be generated from the issuer certificate alone which can then be
6610 passed to OCSP_id_issuer_cmp().
6613 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
6614 ASN1 modules to export functions returning ASN1_ITEM pointers
6615 instead of the ASN1_ITEM structures themselves. This adds several
6616 new macros which allow the underlying ASN1 function/structure to
6617 be accessed transparently. As a result code should not use ASN1_ITEM
6618 references directly (such as &X509_it) but instead use the relevant
6619 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
6620 use of the new ASN1 code on platforms where exporting structures
6621 is problematical (for example in shared libraries) but exporting
6622 functions returning pointers to structures is not.
6625 *) Add support for overriding the generation of SSL/TLS session IDs.
6626 These callbacks can be registered either in an SSL_CTX or per SSL.
6627 The purpose of this is to allow applications to control, if they wish,
6628 the arbitrary values chosen for use as session IDs, particularly as it
6629 can be useful for session caching in multiple-server environments. A
6630 command-line switch for testing this (and any client code that wishes
6631 to use such a feature) has been added to "s_server".
6632 [Geoff Thorpe, Lutz Jaenicke]
6634 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
6635 of the form '#if defined(...) || defined(...) || ...' and
6636 '#if !defined(...) && !defined(...) && ...'. This also avoids
6637 the growing number of special cases it was previously handling.
6640 *) Make all configuration macros available for application by making
6641 sure they are available in opensslconf.h, by giving them names starting
6642 with "OPENSSL_" to avoid conflicts with other packages and by making
6643 sure e_os2.h will cover all platform-specific cases together with
6645 Additionally, it is now possible to define configuration/platform-
6646 specific names (called "system identities"). In the C code, these
6647 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
6648 macro with the name beginning with "OPENSSL_SYS_", which is determined
6649 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
6653 *) New option -set_serial to 'req' and 'x509' this allows the serial
6654 number to use to be specified on the command line. Previously self
6655 signed certificates were hard coded with serial number 0 and the
6656 CA options of 'x509' had to use a serial number in a file which was
6660 *) New options to 'ca' utility to support V2 CRL entry extensions.
6661 Currently CRL reason, invalidity date and hold instruction are
6662 supported. Add new CRL extensions to V3 code and some new objects.
6665 *) New function EVP_CIPHER_CTX_set_padding() this is used to
6666 disable standard block padding (aka PKCS#5 padding) in the EVP
6667 API, which was previously mandatory. This means that the data is
6668 not padded in any way and so the total length much be a multiple
6669 of the block size, otherwise an error occurs.
6672 *) Initial (incomplete) OCSP SSL support.
6675 *) New function OCSP_parse_url(). This splits up a URL into its host,
6676 port and path components: primarily to parse OCSP URLs. New -url
6677 option to ocsp utility.
6680 *) New nonce behavior. The return value of OCSP_check_nonce() now
6681 reflects the various checks performed. Applications can decide
6682 whether to tolerate certain situations such as an absent nonce
6683 in a response when one was present in a request: the ocsp application
6684 just prints out a warning. New function OCSP_add1_basic_nonce()
6685 this is to allow responders to include a nonce in a response even if
6686 the request is nonce-less.
6689 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
6690 skipped when using openssl x509 multiple times on a single input file,
6691 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
6694 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
6695 set string type: to handle setting ASN1_TIME structures. Fix ca
6696 utility to correctly initialize revocation date of CRLs.
6699 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
6700 the clients preferred ciphersuites and rather use its own preferences.
6701 Should help to work around M$ SGC (Server Gated Cryptography) bug in
6702 Internet Explorer by ensuring unchanged hash method during stepup.
6703 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
6706 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
6707 to aes and add a new 'exist' option to print out symbols that don't
6711 *) Additional options to ocsp utility to allow flags to be set and
6712 additional certificates supplied.
6715 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
6716 OCSP client a number of certificate to only verify the response
6720 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
6721 handle the new API. Currently only ECB, CBC modes supported. Add new
6724 Add TLS AES ciphersuites as described in RFC3268, "Advanced
6725 Encryption Standard (AES) Ciphersuites for Transport Layer
6726 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
6727 not enabled by default and were not part of the "ALL" ciphersuite
6728 alias because they were not yet official; they could be
6729 explicitly requested by specifying the "AESdraft" ciphersuite
6730 group alias. In the final release of OpenSSL 0.9.7, the group
6731 alias is called "AES" and is part of "ALL".)
6732 [Ben Laurie, Steve Henson, Bodo Moeller]
6734 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
6735 request to response.
6738 *) Functions for OCSP responders. OCSP_request_onereq_count(),
6739 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
6740 extract information from a certificate request. OCSP_response_create()
6741 creates a response and optionally adds a basic response structure.
6742 OCSP_basic_add1_status() adds a complete single response to a basic
6743 response and returns the OCSP_SINGLERESP structure just added (to allow
6744 extensions to be included for example). OCSP_basic_add1_cert() adds a
6745 certificate to a basic response and OCSP_basic_sign() signs a basic
6746 response with various flags. New helper functions ASN1_TIME_check()
6747 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
6748 (converts ASN1_TIME to GeneralizedTime).
6751 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
6752 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
6753 structure from a certificate. X509_pubkey_digest() digests the public_key
6754 contents: this is used in various key identifiers.
6757 *) Make sk_sort() tolerate a NULL argument.
6758 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
6760 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
6761 passed by the function are trusted implicitly. If any of them signed the
6762 response then it is assumed to be valid and is not verified.
6765 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
6766 to data. This was previously part of the PKCS7 ASN1 code. This
6767 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
6768 [Steve Henson, reported by Kenneth R. Robinette
6769 <support@securenetterm.com>]
6771 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
6772 routines: without these tracing memory leaks is very painful.
6773 Fix leaks in PKCS12 and PKCS7 routines.
6776 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
6777 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
6778 effectively meant GeneralizedTime would never be used. Now it
6779 is initialised to -1 but X509_time_adj() now has to check the value
6780 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
6781 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
6782 [Steve Henson, reported by Kenneth R. Robinette
6783 <support@securenetterm.com>]
6785 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
6786 result in a zero length in the ASN1_INTEGER structure which was
6787 not consistent with the structure when d2i_ASN1_INTEGER() was used
6788 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
6789 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
6790 where it did not print out a minus for negative ASN1_INTEGER.
6793 *) Add summary printout to ocsp utility. The various functions which
6794 convert status values to strings have been renamed to:
6795 OCSP_response_status_str(), OCSP_cert_status_str() and
6796 OCSP_crl_reason_str() and are no longer static. New options
6797 to verify nonce values and to disable verification. OCSP response
6798 printout format cleaned up.
6801 *) Add additional OCSP certificate checks. These are those specified
6802 in RFC2560. This consists of two separate checks: the CA of the
6803 certificate being checked must either be the OCSP signer certificate
6804 or the issuer of the OCSP signer certificate. In the latter case the
6805 OCSP signer certificate must contain the OCSP signing extended key
6806 usage. This check is performed by attempting to match the OCSP
6807 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
6808 in the OCSP_CERTID structures of the response.
6811 *) Initial OCSP certificate verification added to OCSP_basic_verify()
6812 and related routines. This uses the standard OpenSSL certificate
6813 verify routines to perform initial checks (just CA validity) and
6814 to obtain the certificate chain. Then additional checks will be
6815 performed on the chain. Currently the root CA is checked to see
6816 if it is explicitly trusted for OCSP signing. This is used to set
6817 a root CA as a global signing root: that is any certificate that
6818 chains to that CA is an acceptable OCSP signing certificate.
6821 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
6822 extensions from a separate configuration file.
6823 As when reading extensions from the main configuration file,
6824 the '-extensions ...' option may be used for specifying the
6826 [Massimiliano Pala <madwolf@comune.modena.it>]
6828 *) New OCSP utility. Allows OCSP requests to be generated or
6829 read. The request can be sent to a responder and the output
6830 parsed, outputed or printed in text form. Not complete yet:
6831 still needs to check the OCSP response validity.
6834 *) New subcommands for 'openssl ca':
6835 'openssl ca -status <serial>' prints the status of the cert with
6836 the given serial number (according to the index file).
6837 'openssl ca -updatedb' updates the expiry status of certificates
6839 [Massimiliano Pala <madwolf@comune.modena.it>]
6841 *) New '-newreq-nodes' command option to CA.pl. This is like
6842 '-newreq', but calls 'openssl req' with the '-nodes' option
6843 so that the resulting key is not encrypted.
6844 [Damien Miller <djm@mindrot.org>]
6846 *) New configuration for the GNU Hurd.
6847 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
6849 *) Initial code to implement OCSP basic response verify. This
6850 is currently incomplete. Currently just finds the signer's
6851 certificate and verifies the signature on the response.
6854 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
6855 value of OPENSSLDIR. This is available via the new '-d' option
6856 to 'openssl version', and is also included in 'openssl version -a'.
6859 *) Allowing defining memory allocation callbacks that will be given
6860 file name and line number information in additional arguments
6861 (a const char* and an int). The basic functionality remains, as
6862 well as the original possibility to just replace malloc(),
6863 realloc() and free() by functions that do not know about these
6864 additional arguments. To register and find out the current
6865 settings for extended allocation functions, the following
6866 functions are provided:
6868 CRYPTO_set_mem_ex_functions
6869 CRYPTO_set_locked_mem_ex_functions
6870 CRYPTO_get_mem_ex_functions
6871 CRYPTO_get_locked_mem_ex_functions
6873 These work the same way as CRYPTO_set_mem_functions and friends.
6874 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
6875 extended allocation function is enabled.
6876 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
6877 a conventional allocation function is enabled.
6878 [Richard Levitte, Bodo Moeller]
6880 *) Finish off removing the remaining LHASH function pointer casts.
6881 There should no longer be any prototype-casting required when using
6882 the LHASH abstraction, and any casts that remain are "bugs". See
6883 the callback types and macros at the head of lhash.h for details
6884 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
6887 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
6888 If /dev/[u]random devices are not available or do not return enough
6889 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
6891 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
6892 /etc/entropy will be queried once each in this sequence, quering stops
6893 when enough entropy was collected without querying more sockets.
6896 *) Change the Unix RAND_poll() variant to be able to poll several
6897 random devices, as specified by DEVRANDOM, until a sufficient amount
6898 of data has been collected. We spend at most 10 ms on each file
6899 (select timeout) and read in non-blocking mode. DEVRANDOM now
6900 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
6901 (previously it was just the string "/dev/urandom"), so on typical
6902 platforms the 10 ms delay will never occur.
6903 Also separate out the Unix variant to its own file, rand_unix.c.
6904 For VMS, there's a currently-empty rand_vms.c.
6907 *) Move OCSP client related routines to ocsp_cl.c. These
6908 provide utility functions which an application needing
6909 to issue a request to an OCSP responder and analyse the
6910 response will typically need: as opposed to those which an
6911 OCSP responder itself would need which will be added later.
6913 OCSP_request_sign() signs an OCSP request with an API similar
6914 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
6915 response. OCSP_response_get1_basic() extracts basic response
6916 from response. OCSP_resp_find_status(): finds and extracts status
6917 information from an OCSP_CERTID structure (which will be created
6918 when the request structure is built). These are built from lower
6919 level functions which work on OCSP_SINGLERESP structures but
6920 wont normally be used unless the application wishes to examine
6921 extensions in the OCSP response for example.
6923 Replace nonce routines with a pair of functions.
6924 OCSP_request_add1_nonce() adds a nonce value and optionally
6925 generates a random value. OCSP_check_nonce() checks the
6926 validity of the nonce in an OCSP response.
6929 *) Change function OCSP_request_add() to OCSP_request_add0_id().
6930 This doesn't copy the supplied OCSP_CERTID and avoids the
6931 need to free up the newly created id. Change return type
6932 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
6933 This can then be used to add extensions to the request.
6934 Deleted OCSP_request_new(), since most of its functionality
6935 is now in OCSP_REQUEST_new() (and the case insensitive name
6936 clash) apart from the ability to set the request name which
6937 will be added elsewhere.
6940 *) Update OCSP API. Remove obsolete extensions argument from
6941 various functions. Extensions are now handled using the new
6942 OCSP extension code. New simple OCSP HTTP function which
6943 can be used to send requests and parse the response.
6946 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
6947 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
6948 uses the special reorder version of SET OF to sort the attributes
6949 and reorder them to match the encoded order. This resolves a long
6950 standing problem: a verify on a PKCS7 structure just after signing
6951 it used to fail because the attribute order did not match the
6952 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
6953 it uses the received order. This is necessary to tolerate some broken
6954 software that does not order SET OF. This is handled by encoding
6955 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
6956 to produce the required SET OF.
6959 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
6960 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
6961 files to get correct declarations of the ASN.1 item variables.
6964 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
6965 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
6966 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
6967 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
6968 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
6969 ASN1_ITEM and no wrapper functions.
6972 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
6973 replace the old function pointer based I/O routines. Change most of
6974 the *_d2i_bio() and *_d2i_fp() functions to use these.
6977 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
6978 lines, recognice more "algorithms" that can be deselected, and make
6979 it complain about algorithm deselection that isn't recognised.
6982 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
6983 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
6984 to use new functions. Add NO_ASN1_OLD which can be set to remove
6985 some old style ASN1 functions: this can be used to determine if old
6986 code will still work when these eventually go away.
6989 *) New extension functions for OCSP structures, these follow the
6990 same conventions as certificates and CRLs.
6993 *) New function X509V3_add1_i2d(). This automatically encodes and
6994 adds an extension. Its behaviour can be customised with various
6995 flags to append, replace or delete. Various wrappers added for
6996 certifcates and CRLs.
6999 *) Fix to avoid calling the underlying ASN1 print routine when
7000 an extension cannot be parsed. Correct a typo in the
7001 OCSP_SERVICELOC extension. Tidy up print OCSP format.
7004 *) Make mkdef.pl parse some of the ASN1 macros and add appropriate
7005 entries for variables.
7008 *) Add functionality to apps/openssl.c for detecting locking
7009 problems: As the program is single-threaded, all we have
7010 to do is register a locking callback using an array for
7011 storing which locks are currently held by the program.
7014 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
7015 SSL_get_ex_data_X509_STORE_idx(), which is used in
7016 ssl_verify_cert_chain() and thus can be called at any time
7017 during TLS/SSL handshakes so that thread-safety is essential.
7018 Unfortunately, the ex_data design is not at all suited
7019 for multi-threaded use, so it probably should be abolished.
7022 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
7023 [Broadcom, tweaked and integrated by Geoff Thorpe]
7025 *) Move common extension printing code to new function
7026 X509V3_print_extensions(). Reorganise OCSP print routines and
7027 implement some needed OCSP ASN1 functions. Add OCSP extensions.
7030 *) New function X509_signature_print() to remove duplication in some
7034 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
7035 set (this was treated exactly the same as SET OF previously). This
7036 is used to reorder the STACK representing the structure to match the
7037 encoding. This will be used to get round a problem where a PKCS7
7038 structure which was signed could not be verified because the STACK
7039 order did not reflect the encoded order.
7042 *) Reimplement the OCSP ASN1 module using the new code.
7045 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
7046 for its ASN1 operations. The old style function pointers still exist
7047 for now but they will eventually go away.
7050 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
7051 completely replaces the old ASN1 functionality with a table driven
7052 encoder and decoder which interprets an ASN1_ITEM structure describing
7053 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
7054 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
7055 has also been converted to the new form.
7058 *) Change BN_mod_exp_recp so that negative moduli are tolerated
7059 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
7060 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
7061 for negative moduli.
7064 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
7065 of not touching the result's sign bit.
7068 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
7072 *) Changed the LHASH code to use prototypes for callbacks, and created
7073 macros to declare and implement thin (optionally static) functions
7074 that provide type-safety and avoid function pointer casting for the
7075 type-specific callbacks.
7078 *) Added Kerberos Cipher Suites to be used with TLS, as written in
7080 [Veers Staats <staatsvr@asc.hpc.mil>,
7081 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
7083 *) Reformat the FAQ so the different questions and answers can be divided
7084 in sections depending on the subject.
7087 *) Have the zlib compression code load ZLIB.DLL dynamically under
7091 *) New function BN_mod_sqrt for computing square roots modulo a prime
7092 (using the probabilistic Tonelli-Shanks algorithm unless
7093 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
7094 be handled deterministically).
7095 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
7097 *) Make BN_mod_inverse faster by explicitly handling small quotients
7098 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
7099 512 bits], about 30% for larger ones [1024 or 2048 bits].)
7102 *) New function BN_kronecker.
7105 *) Fix BN_gcd so that it works on negative inputs; the result is
7106 positive unless both parameters are zero.
7107 Previously something reasonably close to an infinite loop was
7108 possible because numbers could be growing instead of shrinking
7109 in the implementation of Euclid's algorithm.
7112 *) Fix BN_is_word() and BN_is_one() macros to take into account the
7113 sign of the number in question.
7115 Fix BN_is_word(a,w) to work correctly for w == 0.
7117 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
7118 because its test if the absolute value of 'a' equals 'w'.
7119 Note that BN_abs_is_word does *not* handle w == 0 reliably;
7120 it exists mostly for use in the implementations of BN_is_zero(),
7121 BN_is_one(), and BN_is_word().
7124 *) New function BN_swap.
7127 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
7128 the exponentiation functions are more likely to produce reasonable
7129 results on negative inputs.
7132 *) Change BN_mod_mul so that the result is always non-negative.
7133 Previously, it could be negative if one of the factors was negative;
7134 I don't think anyone really wanted that behaviour.
7137 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
7138 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
7139 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
7140 and add new functions:
7149 BN_mod_lshift1_quick
7153 These functions always generate non-negative results.
7155 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
7156 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
7158 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
7159 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
7160 be reduced modulo m.
7161 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
7164 The following entry accidentally appeared in the CHANGES file
7165 distributed with OpenSSL 0.9.7. The modifications described in
7166 it do *not* apply to OpenSSL 0.9.7.
7168 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
7169 was actually never needed) and in BN_mul(). The removal in BN_mul()
7170 required a small change in bn_mul_part_recursive() and the addition
7171 of the functions bn_cmp_part_words(), bn_sub_part_words() and
7172 bn_add_part_words(), which do the same thing as bn_cmp_words(),
7173 bn_sub_words() and bn_add_words() except they take arrays with
7178 *) In 'openssl passwd', verify passwords read from the terminal
7179 unless the '-salt' option is used (which usually means that
7180 verification would just waste user's time since the resulting
7181 hash is going to be compared with some given password hash)
7182 or the new '-noverify' option is used.
7184 This is an incompatible change, but it does not affect
7185 non-interactive use of 'openssl passwd' (passwords on the command
7186 line, '-stdin' option, '-in ...' option) and thus should not
7190 *) Remove all references to RSAref, since there's no more need for it.
7193 *) Make DSO load along a path given through an environment variable
7194 (SHLIB_PATH) with shl_load().
7197 *) Constify the ENGINE code as a result of BIGNUM constification.
7198 Also constify the RSA code and most things related to it. In a
7199 few places, most notable in the depth of the ASN.1 code, ugly
7200 casts back to non-const were required (to be solved at a later
7204 *) Make it so the openssl application has all engines loaded by default.
7207 *) Constify the BIGNUM routines a little more.
7210 *) Add the following functions:
7212 ENGINE_load_cswift()
7214 ENGINE_load_atalla()
7216 ENGINE_load_builtin_engines()
7218 That way, an application can itself choose if external engines that
7219 are built-in in OpenSSL shall ever be used or not. The benefit is
7220 that applications won't have to be linked with libdl or other dso
7221 libraries unless it's really needed.
7223 Changed 'openssl engine' to load all engines on demand.
7224 Changed the engine header files to avoid the duplication of some
7225 declarations (they differed!).
7228 *) 'openssl engine' can now list capabilities.
7231 *) Better error reporting in 'openssl engine'.
7234 *) Never call load_dh_param(NULL) in s_server.
7237 *) Add engine application. It can currently list engines by name and
7238 identity, and test if they are actually available.
7241 *) Improve RPM specification file by forcing symbolic linking and making
7242 sure the installed documentation is also owned by root.root.
7243 [Damien Miller <djm@mindrot.org>]
7245 *) Give the OpenSSL applications more possibilities to make use of
7246 keys (public as well as private) handled by engines.
7249 *) Add OCSP code that comes from CertCo.
7252 *) Add VMS support for the Rijndael code.
7255 *) Added untested support for Nuron crypto accelerator.
7258 *) Add support for external cryptographic devices. This code was
7259 previously distributed separately as the "engine" branch.
7260 [Geoff Thorpe, Richard Levitte]
7262 *) Rework the filename-translation in the DSO code. It is now possible to
7263 have far greater control over how a "name" is turned into a filename
7264 depending on the operating environment and any oddities about the
7265 different shared library filenames on each system.
7268 *) Support threads on FreeBSD-elf in Configure.
7271 *) Fix for SHA1 assembly problem with MASM: it produces
7272 warnings about corrupt line number information when assembling
7273 with debugging information. This is caused by the overlapping
7275 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
7278 NCONF_get_number() has no error checking at all. As a replacement,
7279 NCONF_get_number_e() is defined (_e for "error checking") and is
7280 promoted strongly. The old NCONF_get_number is kept around for
7281 binary backward compatibility.
7282 Make it possible for methods to load from something other than a BIO,
7283 by providing a function pointer that is given a name instead of a BIO.
7284 For example, this could be used to load configuration data from an
7288 *) Fix for non blocking accept BIOs. Added new I/O special reason
7289 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
7290 with non blocking I/O was not possible because no retry code was
7291 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
7295 *) Added the beginnings of Rijndael support.
7298 *) Fix for bug in DirectoryString mask setting. Add support for
7299 X509_NAME_print_ex() in 'req' and X509_print_ex() function
7300 to allow certificate printing to more controllable, additional
7301 'certopt' option to 'x509' to allow new printing options to be
7305 *) Clean old EAY MD5 hack from e_os.h.
7308 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
7310 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
7311 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
7312 [Joe Orton, Steve Henson]
7314 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
7316 *) Fix additional bug revealed by the NISCC test suite:
7318 Stop bug triggering large recursion when presented with
7319 certain ASN.1 tags (CVE-2003-0851)
7322 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
7324 *) Fix various bugs revealed by running the NISCC test suite:
7326 Stop out of bounds reads in the ASN1 code when presented with
7327 invalid tags (CVE-2003-0543 and CVE-2003-0544).
7329 If verify callback ignores invalid public key errors don't try to check
7330 certificate signature with the NULL public key.
7334 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
7335 if the server requested one: as stated in TLS 1.0 and SSL 3.0
7339 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
7340 extra data after the compression methods not only for TLS 1.0
7341 but also for SSL 3.0 (as required by the specification).
7342 [Bodo Moeller; problem pointed out by Matthias Loepfe]
7344 *) Change X509_certificate_type() to mark the key as exported/exportable
7345 when it's 512 *bits* long, not 512 bytes.
7348 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
7350 *) Countermeasure against the Klima-Pokorny-Rosa extension of
7351 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
7352 a protocol version number mismatch like a decryption error
7353 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
7356 *) Turn on RSA blinding by default in the default implementation
7357 to avoid a timing attack. Applications that don't want it can call
7358 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
7359 They would be ill-advised to do so in most cases.
7360 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
7362 *) Change RSA blinding code so that it works when the PRNG is not
7363 seeded (in this case, the secret RSA exponent is abused as
7364 an unpredictable seed -- if it is not unpredictable, there
7365 is no point in blinding anyway). Make RSA blinding thread-safe
7366 by remembering the creator's thread ID in rsa->blinding and
7367 having all other threads use local one-time blinding factors
7368 (this requires more computation than sharing rsa->blinding, but
7369 avoids excessive locking; and if an RSA object is not shared
7370 between threads, blinding will still be very fast).
7373 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
7375 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
7376 via timing by performing a MAC computation even if incorrrect
7377 block cipher padding has been found. This is a countermeasure
7378 against active attacks where the attacker has to distinguish
7379 between bad padding and a MAC verification error. (CVE-2003-0078)
7381 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
7382 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
7383 Martin Vuagnoux (EPFL, Ilion)]
7385 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
7387 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
7388 memory from it's contents. This is done with a counter that will
7389 place alternating values in each byte. This can be used to solve
7390 two issues: 1) the removal of calls to memset() by highly optimizing
7391 compilers, and 2) cleansing with other values than 0, since those can
7392 be read through on certain media, for example a swap space on disk.
7395 *) Bugfix: client side session caching did not work with external caching,
7396 because the session->cipher setting was not restored when reloading
7397 from the external cache. This problem was masked, when
7398 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
7399 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
7402 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
7403 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
7404 [Zeev Lieber <zeev-l@yahoo.com>]
7406 *) Undo an undocumented change introduced in 0.9.6e which caused
7407 repeated calls to OpenSSL_add_all_ciphers() and
7408 OpenSSL_add_all_digests() to be ignored, even after calling
7412 *) Change the default configuration reader to deal with last line not
7413 being properly terminated.
7416 *) Change X509_NAME_cmp() so it applies the special rules on handling
7417 DN values that are of type PrintableString, as well as RDNs of type
7418 emailAddress where the value has the type ia5String.
7419 [stefank@valicert.com via Richard Levitte]
7421 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
7422 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
7423 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
7424 the bitwise-OR of the two for use by the majority of applications
7425 wanting this behaviour, and update the docs. The documented
7426 behaviour and actual behaviour were inconsistent and had been
7427 changing anyway, so this is more a bug-fix than a behavioural
7429 [Geoff Thorpe, diagnosed by Nadav Har'El]
7431 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
7432 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
7435 *) Fix initialization code race conditions in
7436 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
7437 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
7438 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
7439 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
7440 ssl2_get_cipher_by_char(),
7441 ssl3_get_cipher_by_char().
7442 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
7444 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
7445 the cached sessions are flushed, as the remove_cb() might use ex_data
7446 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
7447 (see [openssl.org #212]).
7448 [Geoff Thorpe, Lutz Jaenicke]
7450 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
7451 length, instead of the encoding length to d2i_ASN1_OBJECT.
7454 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
7456 *) [In 0.9.6g-engine release:]
7457 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
7458 [Lynn Gazis <lgazis@rainbow.com>]
7460 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
7462 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
7463 and get fix the header length calculation.
7464 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
7465 Alon Kantor <alonk@checkpoint.com> (and others),
7468 *) Use proper error handling instead of 'assertions' in buffer
7469 overflow checks added in 0.9.6e. This prevents DoS (the
7470 assertions could call abort()).
7471 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
7473 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
7475 *) Add various sanity checks to asn1_get_length() to reject
7476 the ASN1 length bytes if they exceed sizeof(long), will appear
7477 negative or the content length exceeds the length of the
7479 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
7481 *) Fix cipher selection routines: ciphers without encryption had no flags
7482 for the cipher strength set and where therefore not handled correctly
7483 by the selection routines (PR #130).
7486 *) Fix EVP_dsa_sha macro.
7490 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
7491 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
7492 that was added in OpenSSL 0.9.6d.
7494 As the countermeasure turned out to be incompatible with some
7495 broken SSL implementations, the new option is part of SSL_OP_ALL.
7496 SSL_OP_ALL is usually employed when compatibility with weird SSL
7497 implementations is desired (e.g. '-bugs' option to 's_client' and
7498 's_server'), so the new option is automatically set in many
7502 *) Changes in security patch:
7504 Changes marked "(CHATS)" were sponsored by the Defense Advanced
7505 Research Projects Agency (DARPA) and Air Force Research Laboratory,
7506 Air Force Materiel Command, USAF, under agreement number
7509 *) Add various sanity checks to asn1_get_length() to reject
7510 the ASN1 length bytes if they exceed sizeof(long), will appear
7511 negative or the content length exceeds the length of the
7512 supplied buffer. (CVE-2002-0659)
7513 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
7515 *) Assertions for various potential buffer overflows, not known to
7517 [Ben Laurie (CHATS)]
7519 *) Various temporary buffers to hold ASCII versions of integers were
7520 too small for 64 bit platforms. (CVE-2002-0655)
7521 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
7523 *) Remote buffer overflow in SSL3 protocol - an attacker could
7524 supply an oversized session ID to a client. (CVE-2002-0656)
7525 [Ben Laurie (CHATS)]
7527 *) Remote buffer overflow in SSL2 protocol - an attacker could
7528 supply an oversized client master key. (CVE-2002-0656)
7529 [Ben Laurie (CHATS)]
7531 Changes between 0.9.6c and 0.9.6d [9 May 2002]
7533 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
7534 encoded as NULL) with id-dsa-with-sha1.
7535 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
7537 *) Check various X509_...() return values in apps/req.c.
7538 [Nils Larsch <nla@trustcenter.de>]
7540 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
7541 an end-of-file condition would erronously be flagged, when the CRLF
7542 was just at the end of a processed block. The bug was discovered when
7543 processing data through a buffering memory BIO handing the data to a
7544 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
7545 <ptsekov@syntrex.com> and Nedelcho Stanev.
7548 *) Implement a countermeasure against a vulnerability recently found
7549 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
7550 before application data chunks to avoid the use of known IVs
7551 with data potentially chosen by the attacker.
7554 *) Fix length checks in ssl3_get_client_hello().
7557 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
7558 to prevent ssl3_read_internal() from incorrectly assuming that
7559 ssl3_read_bytes() found application data while handshake
7560 processing was enabled when in fact s->s3->in_read_app_data was
7561 merely automatically cleared during the initial handshake.
7562 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
7564 *) Fix object definitions for Private and Enterprise: they were not
7565 recognized in their shortname (=lowercase) representation. Extend
7566 obj_dat.pl to issue an error when using undefined keywords instead
7567 of silently ignoring the problem (Svenning Sorensen
7568 <sss@sss.dnsalias.net>).
7571 *) Fix DH_generate_parameters() so that it works for 'non-standard'
7572 generators, i.e. generators other than 2 and 5. (Previously, the
7573 code did not properly initialise the 'add' and 'rem' values to
7574 BN_generate_prime().)
7576 In the new general case, we do not insist that 'generator' is
7577 actually a primitive root: This requirement is rather pointless;
7578 a generator of the order-q subgroup is just as good, if not
7582 *) Map new X509 verification errors to alerts. Discovered and submitted by
7583 Tom Wu <tom@arcot.com>.
7586 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
7587 returning non-zero before the data has been completely received
7588 when using non-blocking I/O.
7589 [Bodo Moeller; problem pointed out by John Hughes]
7591 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
7592 [Ben Laurie, Lutz Jaenicke]
7594 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
7595 Yoram Zahavi <YoramZ@gilian.com>).
7598 *) Add information about CygWin 1.3 and on, and preserve proper
7599 configuration for the versions before that.
7600 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
7602 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
7603 check whether we deal with a copy of a session and do not delete from
7604 the cache in this case. Problem reported by "Izhar Shoshani Levi"
7605 <izhar@checkpoint.com>.
7608 *) Do not store session data into the internal session cache, if it
7609 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
7610 flag is set). Proposed by Aslam <aslam@funk.com>.
7613 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
7617 *) [In 0.9.6d-engine release:]
7618 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
7619 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
7621 *) Add the configuration target linux-s390x.
7622 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
7624 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
7625 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
7626 variable as an indication that a ClientHello message has been
7627 received. As the flag value will be lost between multiple
7628 invocations of ssl3_accept when using non-blocking I/O, the
7629 function may not be aware that a handshake has actually taken
7630 place, thus preventing a new session from being added to the
7633 To avoid this problem, we now set s->new_session to 2 instead of
7634 using a local variable.
7635 [Lutz Jaenicke, Bodo Moeller]
7637 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
7638 if the SSL_R_LENGTH_MISMATCH error is detected.
7639 [Geoff Thorpe, Bodo Moeller]
7641 *) New 'shared_ldflag' column in Configure platform table.
7644 *) Fix EVP_CIPHER_mode macro.
7645 ["Dan S. Camper" <dan@bti.net>]
7647 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
7648 type, we must throw them away by setting rr->length to 0.
7649 [D P Chang <dpc@qualys.com>]
7651 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
7653 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
7654 <Dominikus.Scherkl@biodata.com>. (The previous implementation
7655 worked incorrectly for those cases where range = 10..._2 and
7656 3*range is two bits longer than range.)
7659 *) Only add signing time to PKCS7 structures if it is not already
7663 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
7664 OBJ_ld_ce should be OBJ_id_ce.
7665 Also some ip-pda OIDs in crypto/objects/objects.txt were
7666 incorrect (cf. RFC 3039).
7667 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
7669 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
7670 returns early because it has nothing to do.
7671 [Andy Schneider <andy.schneider@bjss.co.uk>]
7673 *) [In 0.9.6c-engine release:]
7674 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
7675 [Andy Schneider <andy.schneider@bjss.co.uk>]
7677 *) [In 0.9.6c-engine release:]
7678 Add support for Cryptographic Appliance's keyserver technology.
7679 (Use engine 'keyclient')
7680 [Cryptographic Appliances and Geoff Thorpe]
7682 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
7683 is called via tools/c89.sh because arguments have to be
7684 rearranged (all '-L' options must appear before the first object
7686 [Richard Shapiro <rshapiro@abinitio.com>]
7688 *) [In 0.9.6c-engine release:]
7689 Add support for Broadcom crypto accelerator cards, backported
7691 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
7693 *) [In 0.9.6c-engine release:]
7694 Add support for SureWare crypto accelerator cards from
7695 Baltimore Technologies. (Use engine 'sureware')
7696 [Baltimore Technologies and Mark Cox]
7698 *) [In 0.9.6c-engine release:]
7699 Add support for crypto accelerator cards from Accelerated
7700 Encryption Processing, www.aep.ie. (Use engine 'aep')
7701 [AEP Inc. and Mark Cox]
7703 *) Add a configuration entry for gcc on UnixWare.
7704 [Gary Benson <gbenson@redhat.com>]
7706 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
7707 messages are stored in a single piece (fixed-length part and
7708 variable-length part combined) and fix various bugs found on the way.
7711 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
7712 instead. BIO_gethostbyname() does not know what timeouts are
7713 appropriate, so entries would stay in cache even when they have
7715 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
7717 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
7718 faced with a pathologically small ClientHello fragment that does
7719 not contain client_version: Instead of aborting with an error,
7720 simply choose the highest available protocol version (i.e.,
7721 TLS 1.0 unless it is disabled). In practice, ClientHello
7722 messages are never sent like this, but this change gives us
7723 strictly correct behaviour at least for TLS.
7726 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
7727 never resets s->method to s->ctx->method when called from within
7728 one of the SSL handshake functions.
7729 [Bodo Moeller; problem pointed out by Niko Baric]
7731 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
7732 (sent using the client's version number) if client_version is
7733 smaller than the protocol version in use. Also change
7734 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
7735 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
7736 the client will at least see that alert.
7739 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
7743 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
7744 client receives HelloRequest while in a handshake.
7745 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
7747 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
7748 should end in 'break', not 'goto end' which circumvents various
7749 cleanups done in state SSL_ST_OK. But session related stuff
7750 must be disabled for SSL_ST_OK in the case that we just sent a
7753 Also avoid some overhead by not calling ssl_init_wbio_buffer()
7754 before just sending a HelloRequest.
7755 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
7757 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
7758 reveal whether illegal block cipher padding was found or a MAC
7759 verification error occurred. (Neither SSLerr() codes nor alerts
7760 are directly visible to potential attackers, but the information
7761 may leak via logfiles.)
7763 Similar changes are not required for the SSL 2.0 implementation
7764 because the number of padding bytes is sent in clear for SSL 2.0,
7765 and the extra bytes are just ignored. However ssl/s2_pkt.c
7766 failed to verify that the purported number of padding bytes is in
7770 *) Add OpenUNIX-8 support including shared libraries
7771 (Boyd Lynn Gerber <gerberb@zenez.com>).
7774 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
7775 'wristwatch attack' using huge encoding parameters (cf.
7776 James H. Manger's CRYPTO 2001 paper). Note that the
7777 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
7778 encoding parameters and hence was not vulnerable.
7781 *) BN_sqr() bug fix.
7782 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
7784 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
7785 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
7786 followed by modular reduction.
7787 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
7789 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
7790 equivalent based on BN_pseudo_rand() instead of BN_rand().
7793 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
7794 This function was broken, as the check for a new client hello message
7795 to handle SGC did not allow these large messages.
7796 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
7799 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
7802 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
7803 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
7806 *) Rework the configuration and shared library support for Tru64 Unix.
7807 The configuration part makes use of modern compiler features and
7808 still retains old compiler behavior for those that run older versions
7809 of the OS. The shared library support part includes a variant that
7810 uses the RPATH feature, and is available through the special
7811 configuration target "alpha-cc-rpath", which will never be selected
7813 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
7815 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
7816 with the same message size as in ssl3_get_certificate_request().
7817 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
7818 messages might inadvertently be reject as too long.
7819 [Petr Lampa <lampa@fee.vutbr.cz>]
7821 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
7824 *) Modified SSL library such that the verify_callback that has been set
7825 specificly for an SSL object with SSL_set_verify() is actually being
7826 used. Before the change, a verify_callback set with this function was
7827 ignored and the verify_callback() set in the SSL_CTX at the time of
7828 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
7829 to allow the necessary settings.
7832 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
7833 explicitly to NULL, as at least on Solaris 8 this seems not always to be
7834 done automatically (in contradiction to the requirements of the C
7835 standard). This made problems when used from OpenSSH.
7838 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
7839 dh->length and always used
7841 BN_rand_range(priv_key, dh->p).
7843 BN_rand_range() is not necessary for Diffie-Hellman, and this
7844 specific range makes Diffie-Hellman unnecessarily inefficient if
7845 dh->length (recommended exponent length) is much smaller than the
7846 length of dh->p. We could use BN_rand_range() if the order of
7847 the subgroup was stored in the DH structure, but we only have
7852 BN_rand(priv_key, l, ...)
7854 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
7860 RSA_eay_public_encrypt
7861 RSA_eay_private_decrypt
7862 RSA_eay_private_encrypt (signing)
7863 RSA_eay_public_decrypt (signature verification)
7865 (default implementations for RSA_public_encrypt,
7866 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
7867 always reject numbers >= n.
7870 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
7871 to synchronize access to 'locking_thread'. This is necessary on
7872 systems where access to 'locking_thread' (an 'unsigned long'
7873 variable) is not atomic.
7876 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
7877 *before* setting the 'crypto_lock_rand' flag. The previous code had
7878 a race condition if 0 is a valid thread ID.
7879 [Travis Vitek <vitek@roguewave.com>]
7881 *) Add support for shared libraries under Irix.
7882 [Albert Chin-A-Young <china@thewrittenword.com>]
7884 *) Add configuration option to build on Linux on both big-endian and
7886 [Ralf Baechle <ralf@uni-koblenz.de>]
7888 *) Add the possibility to create shared libraries on HP-UX.
7891 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
7893 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
7894 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
7895 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
7896 PRNG state recovery was possible based on the output of
7897 one PRNG request appropriately sized to gain knowledge on
7898 'md' followed by enough consecutive 1-byte PRNG requests
7899 to traverse all of 'state'.
7901 1. When updating 'md_local' (the current thread's copy of 'md')
7902 during PRNG output generation, hash all of the previous
7903 'md_local' value, not just the half used for PRNG output.
7905 2. Make the number of bytes from 'state' included into the hash
7906 independent from the number of PRNG bytes requested.
7908 The first measure alone would be sufficient to avoid
7909 Markku-Juhani's attack. (Actually it had never occurred
7910 to me that the half of 'md_local' used for chaining was the
7911 half from which PRNG output bytes were taken -- I had always
7912 assumed that the secret half would be used.) The second
7913 measure makes sure that additional data from 'state' is never
7914 mixed into 'md_local' in small portions; this heuristically
7915 further strengthens the PRNG.
7918 *) Fix crypto/bn/asm/mips3.s.
7921 *) When only the key is given to "enc", the IV is undefined. Print out
7922 an error message in this case.
7925 *) Handle special case when X509_NAME is empty in X509 printing routines.
7928 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
7929 positive and less than q.
7932 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
7933 used: it isn't thread safe and the add_lock_callback should handle
7935 [Paul Rose <Paul.Rose@bridge.com>]
7937 *) Verify that incoming data obeys the block size in
7938 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
7942 [Ulf Möller, Bodo Möller]
7944 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
7945 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
7946 when fixing the server behaviour for backwards-compatible 'client
7947 hello' messages. (Note that the attack is impractical against
7948 SSL 3.0 and TLS 1.0 anyway because length and version checking
7949 means that the probability of guessing a valid ciphertext is
7950 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
7953 Before 0.9.5, the countermeasure (hide the error by generating a
7954 random 'decryption result') did not work properly because
7955 ERR_clear_error() was missing, meaning that SSL_get_error() would
7956 detect the supposedly ignored error.
7958 Both problems are now fixed.
7961 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
7962 (previously it was 1024).
7965 *) Fix for compatibility mode trust settings: ignore trust settings
7966 unless some valid trust or reject settings are present.
7969 *) Fix for blowfish EVP: its a variable length cipher.
7972 *) Fix various bugs related to DSA S/MIME verification. Handle missing
7973 parameters in DSA public key structures and return an error in the
7974 DSA routines if parameters are absent.
7977 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
7978 in the current directory if neither $RANDFILE nor $HOME was set.
7979 RAND_file_name() in 0.9.6a returned NULL in this case. This has
7980 caused some confusion to Windows users who haven't defined $HOME.
7981 Thus RAND_file_name() is changed again: e_os.h can define a
7982 DEFAULT_HOME, which will be used if $HOME is not set.
7983 For Windows, we use "C:"; on other platforms, we still require
7984 environment variables.
7986 *) Move 'if (!initialized) RAND_poll()' into regions protected by
7987 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
7988 having multiple threads call RAND_poll() concurrently.
7991 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
7992 combination of a flag and a thread ID variable.
7993 Otherwise while one thread is in ssleay_rand_bytes (which sets the
7994 flag), *other* threads can enter ssleay_add_bytes without obeying
7995 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
7996 that they do not hold after the first thread unsets add_do_not_lock).
7999 *) Change bctest again: '-x' expressions are not available in all
8003 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
8005 *) Fix a couple of memory leaks in PKCS7_dataDecode()
8006 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
8008 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
8009 the default extension for executables, if any. Also, make the perl
8010 scripts that use symlink() to test if it really exists and use "cp"
8011 if it doesn't. All this made OpenSSL compilable and installable in
8015 *) Fix for asn1_GetSequence() for indefinite length constructed data.
8016 If SEQUENCE is length is indefinite just set c->slen to the total
8017 amount of data available.
8018 [Steve Henson, reported by shige@FreeBSD.org]
8019 [This change does not apply to 0.9.7.]
8021 *) Change bctest to avoid here-documents inside command substitution
8022 (workaround for FreeBSD /bin/sh bug).
8023 For compatibility with Ultrix, avoid shell functions (introduced
8024 in the bctest version that searches along $PATH).
8027 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
8028 with des_encrypt() defined on some operating systems, like Solaris
8032 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
8033 On the Importance of Eliminating Errors in Cryptographic
8034 Computations, J. Cryptology 14 (2001) 2, 101-119,
8035 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
8038 *) MIPS assembler BIGNUM division bug fix.
8041 *) Disabled incorrect Alpha assembler code.
8044 *) Fix PKCS#7 decode routines so they correctly update the length
8045 after reading an EOC for the EXPLICIT tag.
8047 [This change does not apply to 0.9.7.]
8049 *) Fix bug in PKCS#12 key generation routines. This was triggered
8050 if a 3DES key was generated with a 0 initial byte. Include
8051 PKCS12_BROKEN_KEYGEN compilation option to retain the old
8052 (but broken) behaviour.
8055 *) Enhance bctest to search for a working bc along $PATH and print
8057 [Tim Rice <tim@multitalents.net> via Richard Levitte]
8059 *) Fix memory leaks in err.c: free err_data string if necessary;
8060 don't write to the wrong index in ERR_set_error_data.
8063 *) Implement ssl23_peek (analogous to ssl23_read), which previously
8067 *) Replace rdtsc with _emit statements for VC++ version 5.
8068 [Jeremy Cooper <jeremy@baymoo.org>]
8070 *) Make it possible to reuse SSLv2 sessions.
8073 *) In copy_email() check for >= 0 as a return value for
8074 X509_NAME_get_index_by_NID() since 0 is a valid index.
8075 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
8077 *) Avoid coredump with unsupported or invalid public keys by checking if
8078 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
8079 PKCS7_verify() fails with non detached data.
8082 *) Don't use getenv in library functions when run as setuid/setgid.
8083 New function OPENSSL_issetugid().
8086 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
8087 due to incorrect handling of multi-threading:
8089 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
8091 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
8093 3. Count how many times MemCheck_off() has been called so that
8094 nested use can be treated correctly. This also avoids
8095 inband-signalling in the previous code (which relied on the
8096 assumption that thread ID 0 is impossible).
8099 *) Add "-rand" option also to s_client and s_server.
8102 *) Fix CPU detection on Irix 6.x.
8103 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
8104 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
8106 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
8109 [This change does not apply to 0.9.7.]
8111 *) Use the cached encoding of an X509_NAME structure rather than
8112 copying it. This is apparently the reason for the libsafe "errors"
8113 but the code is actually correct.
8116 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
8117 Bleichenbacher's DSA attack.
8118 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
8119 to be set and top=0 forces the highest bit to be set; top=-1 is new
8120 and leaves the highest bit random.
8121 [Ulf Moeller, Bodo Moeller]
8123 *) In the NCONF_...-based implementations for CONF_... queries
8124 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
8125 a temporary CONF structure with the data component set to NULL
8126 (which gives segmentation faults in lh_retrieve).
8127 Instead, use NULL for the CONF pointer in CONF_get_string and
8128 CONF_get_number (which may use environment variables) and directly
8129 return NULL from CONF_get_section.
8132 *) Fix potential buffer overrun for EBCDIC.
8135 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
8136 keyUsage if basicConstraints absent for a CA.
8139 *) Make SMIME_write_PKCS7() write mail header values with a format that
8140 is more generally accepted (no spaces before the semicolon), since
8141 some programs can't parse those values properly otherwise. Also make
8142 sure BIO's that break lines after each write do not create invalid
8146 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
8147 macros previously used would not encode an empty SEQUENCE OF
8148 and break the signature.
8150 [This change does not apply to 0.9.7.]
8152 *) Zero the premaster secret after deriving the master secret in
8156 *) Add some EVP_add_digest_alias registrations (as found in
8157 OpenSSL_add_all_digests()) to SSL_library_init()
8158 aka OpenSSL_add_ssl_algorithms(). This provides improved
8159 compatibility with peers using X.509 certificates
8160 with unconventional AlgorithmIdentifier OIDs.
8163 *) Fix for Irix with NO_ASM.
8164 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
8166 *) ./config script fixes.
8167 [Ulf Moeller, Richard Levitte]
8169 *) Fix 'openssl passwd -1'.
8172 *) Change PKCS12_key_gen_asc() so it can cope with non null
8173 terminated strings whose length is passed in the passlen
8174 parameter, for example from PEM callbacks. This was done
8175 by adding an extra length parameter to asc2uni().
8176 [Steve Henson, reported by <oddissey@samsung.co.kr>]
8178 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
8179 call failed, free the DSA structure.
8182 *) Fix to uni2asc() to cope with zero length Unicode strings.
8183 These are present in some PKCS#12 files.
8186 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
8187 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
8188 when writing a 32767 byte record.
8189 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
8191 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
8192 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
8194 (RSA objects have a reference count access to which is protected
8195 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
8196 so they are meant to be shared between threads.)
8197 [Bodo Moeller, Geoff Thorpe; original patch submitted by
8198 "Reddie, Steven" <Steven.Reddie@ca.com>]
8200 *) Fix a deadlock in CRYPTO_mem_leaks().
8203 *) Use better test patterns in bntest.
8206 *) rand_win.c fix for Borland C.
8209 *) BN_rshift bugfix for n == 0.
8212 *) Add a 'bctest' script that checks for some known 'bc' bugs
8213 so that 'make test' does not abort just because 'bc' is broken.
8216 *) Store verify_result within SSL_SESSION also for client side to
8217 avoid potential security hole. (Re-used sessions on the client side
8218 always resulted in verify_result==X509_V_OK, not using the original
8219 result of the server certificate verification.)
8222 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
8223 SSL3_RT_APPLICATION_DATA, return 0.
8224 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
8228 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
8229 releases, have been re-implemented by renaming the previous
8230 implementations of ssl2_read and ssl3_read to ssl2_read_internal
8231 and ssl3_read_internal, respectively, and adding 'peek' parameters
8232 to them. The new ssl[23]_{read,peek} functions are calls to
8233 ssl[23]_read_internal with the 'peek' flag set appropriately.
8234 A 'peek' parameter has also been added to ssl3_read_bytes, which
8235 does the actual work for ssl3_read_internal.
8238 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
8239 the method-specific "init()" handler. Also clean up ex_data after
8240 calling the method-specific "finish()" handler. Previously, this was
8241 happening the other way round.
8244 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
8245 The previous value, 12, was not always sufficient for BN_mod_exp().
8248 *) Make sure that shared libraries get the internal name engine with
8249 the full version number and not just 0. This should mark the
8250 shared libraries as not backward compatible. Of course, this should
8251 be changed again when we can guarantee backward binary compatibility.
8254 *) Fix typo in get_cert_by_subject() in by_dir.c
8255 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
8257 *) Rework the system to generate shared libraries:
8259 - Make note of the expected extension for the shared libraries and
8260 if there is a need for symbolic links from for example libcrypto.so.0
8261 to libcrypto.so.0.9.7. There is extended info in Configure for
8264 - Make as few rebuilds of the shared libraries as possible.
8266 - Still avoid linking the OpenSSL programs with the shared libraries.
8268 - When installing, install the shared libraries separately from the
8272 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
8274 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
8275 and not in SSL_clear because the latter is also used by the
8276 accept/connect functions; previously, the settings made by
8277 SSL_set_read_ahead would be lost during the handshake.
8278 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
8280 *) Correct util/mkdef.pl to be selective about disabled algorithms.
8281 Previously, it would create entries for disabled algorithms no
8285 *) Added several new manual pages for SSL_* function.
8288 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
8290 *) In ssl23_get_client_hello, generate an error message when faced
8291 with an initial SSL 3.0/TLS record that is too small to contain the
8292 first two bytes of the ClientHello message, i.e. client_version.
8293 (Note that this is a pathologic case that probably has never happened
8294 in real life.) The previous approach was to use the version number
8295 from the record header as a substitute; but our protocol choice
8296 should not depend on that one because it is not authenticated
8297 by the Finished messages.
8300 *) More robust randomness gathering functions for Windows.
8301 [Jeffrey Altman <jaltman@columbia.edu>]
8303 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
8304 not set then we don't setup the error code for issuer check errors
8305 to avoid possibly overwriting other errors which the callback does
8306 handle. If an application does set the flag then we assume it knows
8307 what it is doing and can handle the new informational codes
8311 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
8312 a general "ANY" type, as such it should be able to decode anything
8313 including tagged types. However it didn't check the class so it would
8314 wrongly interpret tagged types in the same way as their universal
8315 counterpart and unknown types were just rejected. Changed so that the
8316 tagged and unknown types are handled in the same way as a SEQUENCE:
8317 that is the encoding is stored intact. There is also a new type
8318 "V_ASN1_OTHER" which is used when the class is not universal, in this
8319 case we have no idea what the actual type is so we just lump them all
8323 *) On VMS, stdout may very well lead to a file that is written to
8324 in a record-oriented fashion. That means that every write() will
8325 write a separate record, which will be read separately by the
8326 programs trying to read from it. This can be very confusing.
8328 The solution is to put a BIO filter in the way that will buffer
8329 text until a linefeed is reached, and then write everything a
8330 line at a time, so every record written will be an actual line,
8331 not chunks of lines and not (usually doesn't happen, but I've
8332 seen it once) several lines in one record. BIO_f_linebuffer() is
8335 Currently, it's a VMS-only method, because that's where it has
8336 been tested well enough.
8339 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
8340 it can return incorrect results.
8341 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
8342 but it was in 0.9.6-beta[12].)
8345 *) Disable the check for content being present when verifying detached
8346 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
8347 include zero length content when signing messages.
8350 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
8351 BIO_ctrl (for BIO pairs).
8354 *) Add DSO method for VMS.
8357 *) Bug fix: Montgomery multiplication could produce results with the
8361 *) Add RPM specification openssl.spec and modify it to build three
8362 packages. The default package contains applications, application
8363 documentation and run-time libraries. The devel package contains
8364 include files, static libraries and function documentation. The
8365 doc package contains the contents of the doc directory. The original
8366 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
8369 *) Add a large number of documentation files for many SSL routines.
8370 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
8372 *) Add a configuration entry for Sony News 4.
8373 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
8375 *) Don't set the two most significant bits to one when generating a
8376 random number < q in the DSA library.
8379 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
8380 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
8381 the underlying transport is blocking) if a handshake took place.
8382 (The default behaviour is needed by applications such as s_client
8383 and s_server that use select() to determine when to use SSL_read;
8384 but for applications that know in advance when to expect data, it
8385 just makes things more complicated.)
8388 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
8392 *) Add a few more EBCDIC conditionals that make `req' and `x509'
8393 work better on such systems.
8394 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8396 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
8397 Update PKCS12_parse() so it copies the friendlyName and the
8398 keyid to the certificates aux info.
8401 *) Fix bug in PKCS7_verify() which caused an infinite loop
8402 if there was more than one signature.
8403 [Sven Uszpelkat <su@celocom.de>]
8405 *) Major change in util/mkdef.pl to include extra information
8406 about each symbol, as well as presenting variables as well
8407 as functions. This change means that there's n more need
8408 to rebuild the .num files when some algorithms are excluded.
8411 *) Allow the verify time to be set by an application,
8412 rather than always using the current time.
8415 *) Phase 2 verify code reorganisation. The certificate
8416 verify code now looks up an issuer certificate by a
8417 number of criteria: subject name, authority key id
8418 and key usage. It also verifies self signed certificates
8419 by the same criteria. The main comparison function is
8420 X509_check_issued() which performs these checks.
8422 Lot of changes were necessary in order to support this
8423 without completely rewriting the lookup code.
8425 Authority and subject key identifier are now cached.
8427 The LHASH 'certs' is X509_STORE has now been replaced
8428 by a STACK_OF(X509_OBJECT). This is mainly because an
8429 LHASH can't store or retrieve multiple objects with
8430 the same hash value.
8432 As a result various functions (which were all internal
8433 use only) have changed to handle the new X509_STORE
8434 structure. This will break anything that messed round
8435 with X509_STORE internally.
8437 The functions X509_STORE_add_cert() now checks for an
8438 exact match, rather than just subject name.
8440 The X509_STORE API doesn't directly support the retrieval
8441 of multiple certificates matching a given criteria, however
8442 this can be worked round by performing a lookup first
8443 (which will fill the cache with candidate certificates)
8444 and then examining the cache for matches. This is probably
8445 the best we can do without throwing out X509_LOOKUP
8446 entirely (maybe later...).
8448 The X509_VERIFY_CTX structure has been enhanced considerably.
8450 All certificate lookup operations now go via a get_issuer()
8451 callback. Although this currently uses an X509_STORE it
8452 can be replaced by custom lookups. This is a simple way
8453 to bypass the X509_STORE hackery necessary to make this
8454 work and makes it possible to use more efficient techniques
8455 in future. A very simple version which uses a simple
8456 STACK for its trusted certificate store is also provided
8457 using X509_STORE_CTX_trusted_stack().
8459 The verify_cb() and verify() callbacks now have equivalents
8460 in the X509_STORE_CTX structure.
8462 X509_STORE_CTX also has a 'flags' field which can be used
8463 to customise the verify behaviour.
8466 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
8467 excludes S/MIME capabilities.
8470 *) When a certificate request is read in keep a copy of the
8471 original encoding of the signed data and use it when outputing
8472 again. Signatures then use the original encoding rather than
8473 a decoded, encoded version which may cause problems if the
8474 request is improperly encoded.
8477 *) For consistency with other BIO_puts implementations, call
8478 buffer_write(b, ...) directly in buffer_puts instead of calling
8481 In BIO_puts, increment b->num_write as in BIO_write.
8482 [Peter.Sylvester@EdelWeb.fr]
8484 *) Fix BN_mul_word for the case where the word is 0. (We have to use
8485 BN_zero, we may not return a BIGNUM with an array consisting of
8489 *) Avoid calling abort() from within the library when problems are
8490 detected, except if preprocessor symbols have been defined
8491 (such as REF_CHECK, BN_DEBUG etc.).
8494 *) New openssl application 'rsautl'. This utility can be
8495 used for low level RSA operations. DER public key
8496 BIO/fp routines also added.
8499 *) New Configure entry and patches for compiling on QNX 4.
8500 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
8502 *) A demo state-machine implementation was sponsored by
8503 Nuron (http://www.nuron.com/) and is now available in
8504 demos/state_machine.
8507 *) New options added to the 'dgst' utility for signature
8508 generation and verification.
8511 *) Unrecognized PKCS#7 content types are now handled via a
8512 catch all ASN1_TYPE structure. This allows unsupported
8513 types to be stored as a "blob" and an application can
8514 encode and decode it manually.
8517 *) Fix various signed/unsigned issues to make a_strex.c
8519 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
8521 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
8522 length if passed a buffer. ASN1_INTEGER_to_BN failed
8523 if passed a NULL BN and its argument was negative.
8524 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
8526 *) Modification to PKCS#7 encoding routines to output definite
8527 length encoding. Since currently the whole structures are in
8528 memory there's not real point in using indefinite length
8529 constructed encoding. However if OpenSSL is compiled with
8530 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
8533 *) Added BIO_vprintf() and BIO_vsnprintf().
8536 *) Added more prefixes to parse for in the the strings written
8537 through a logging bio, to cover all the levels that are available
8538 through syslog. The prefixes are now:
8540 PANIC, EMERG, EMR => LOG_EMERG
8541 ALERT, ALR => LOG_ALERT
8542 CRIT, CRI => LOG_CRIT
8543 ERROR, ERR => LOG_ERR
8544 WARNING, WARN, WAR => LOG_WARNING
8545 NOTICE, NOTE, NOT => LOG_NOTICE
8546 INFO, INF => LOG_INFO
8547 DEBUG, DBG => LOG_DEBUG
8549 and as before, if none of those prefixes are present at the
8550 beginning of the string, LOG_ERR is chosen.
8552 On Win32, the LOG_* levels are mapped according to this:
8554 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
8555 LOG_WARNING => EVENTLOG_WARNING_TYPE
8556 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
8560 *) Made it possible to reconfigure with just the configuration
8561 argument "reconf" or "reconfigure". The command line arguments
8562 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
8563 and are retrieved from there when reconfiguring.
8567 [Assar Westerlund <assar@sics.se>, Richard Levitte]
8569 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
8572 *) The obj_dat.pl script was messing up the sorting of object
8573 names. The reason was that it compared the quoted version
8574 of strings as a result "OCSP" > "OCSP Signing" because
8575 " > SPACE. Changed script to store unquoted versions of
8576 names and add quotes on output. It was also omitting some
8577 names from the lookup table if they were given a default
8578 value (that is if SN is missing it is given the same
8579 value as LN and vice versa), these are now added on the
8580 grounds that if an object has a name we should be able to
8581 look it up. Finally added warning output when duplicate
8582 short or long names are found.
8585 *) Changes needed for Tandem NSK.
8586 [Scott Uroff <scott@xypro.com>]
8588 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
8589 RSA_padding_check_SSLv23(), special padding was never detected
8590 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
8591 version rollback attacks was not effective.
8593 In s23_clnt.c, don't use special rollback-attack detection padding
8594 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
8595 client; similarly, in s23_srvr.c, don't do the rollback check if
8596 SSL 2.0 is the only protocol enabled in the server.
8599 *) Make it possible to get hexdumps of unprintable data with 'openssl
8600 asn1parse'. By implication, the functions ASN1_parse_dump() and
8601 BIO_dump_indent() are added.
8604 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
8605 these print out strings and name structures based on various
8606 flags including RFC2253 support and proper handling of
8607 multibyte characters. Added options to the 'x509' utility
8608 to allow the various flags to be set.
8611 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
8612 Also change the functions X509_cmp_current_time() and
8613 X509_gmtime_adj() work with an ASN1_TIME structure,
8614 this will enable certificates using GeneralizedTime in validity
8615 dates to be checked.
8618 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
8619 negative public key encodings) on by default,
8620 NO_NEG_PUBKEY_BUG can be set to disable it.
8623 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
8624 content octets. An i2c_ASN1_OBJECT is unnecessary because
8625 the encoding can be trivially obtained from the structure.
8628 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
8629 not read locks (CRYPTO_r_[un]lock).
8632 *) A first attempt at creating official support for shared
8633 libraries through configuration. I've kept it so the
8634 default is static libraries only, and the OpenSSL programs
8635 are always statically linked for now, but there are
8636 preparations for dynamic linking in place.
8637 This has been tested on Linux and Tru64.
8640 *) Randomness polling function for Win9x, as described in:
8641 Peter Gutmann, Software Generation of Practically Strong
8645 *) Fix so PRNG is seeded in req if using an already existing
8649 *) New options to smime application. -inform and -outform
8650 allow alternative formats for the S/MIME message including
8651 PEM and DER. The -content option allows the content to be
8652 specified separately. This should allow things like Netscape
8653 form signing output easier to verify.
8656 *) Fix the ASN1 encoding of tags using the 'long form'.
8659 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
8660 STRING types. These convert content octets to and from the
8661 underlying type. The actual tag and length octets are
8662 already assumed to have been read in and checked. These
8663 are needed because all other string types have virtually
8664 identical handling apart from the tag. By having versions
8665 of the ASN1 functions that just operate on content octets
8666 IMPLICIT tagging can be handled properly. It also allows
8667 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
8668 and ASN1_INTEGER are identical apart from the tag.
8671 *) Change the handling of OID objects as follows:
8673 - New object identifiers are inserted in objects.txt, following
8674 the syntax given in objects.README.
8675 - objects.pl is used to process obj_mac.num and create a new
8677 - obj_dat.pl is used to create a new obj_dat.h, using the data in
8680 This is currently kind of a hack, and the perl code in objects.pl
8681 isn't very elegant, but it works as I intended. The simplest way
8682 to check that it worked correctly is to look in obj_dat.h and
8683 check the array nid_objs and make sure the objects haven't moved
8684 around (this is important!). Additions are OK, as well as
8685 consistent name changes.
8688 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
8691 *) Addition of the command line parameter '-rand file' to 'openssl req'.
8692 The given file adds to whatever has already been seeded into the
8693 random pool through the RANDFILE configuration file option or
8694 environment variable, or the default random state file.
8697 *) mkstack.pl now sorts each macro group into lexical order.
8698 Previously the output order depended on the order the files
8699 appeared in the directory, resulting in needless rewriting
8703 *) Patches to make OpenSSL compile under Win32 again. Mostly
8704 work arounds for the VC++ problem that it treats func() as
8705 func(void). Also stripped out the parts of mkdef.pl that
8706 added extra typesafe functions: these no longer exist.
8709 *) Reorganisation of the stack code. The macros are now all
8710 collected in safestack.h . Each macro is defined in terms of
8711 a "stack macro" of the form SKM_<name>(type, a, b). The
8712 DEBUG_SAFESTACK is now handled in terms of function casts,
8713 this has the advantage of retaining type safety without the
8714 use of additional functions. If DEBUG_SAFESTACK is not defined
8715 then the non typesafe macros are used instead. Also modified the
8716 mkstack.pl script to handle the new form. Needs testing to see
8717 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
8718 the default if no major problems. Similar behaviour for ASN1_SET_OF
8719 and PKCS12_STACK_OF.
8722 *) When some versions of IIS use the 'NET' form of private key the
8723 key derivation algorithm is different. Normally MD5(password) is
8724 used as a 128 bit RC4 key. In the modified case
8725 MD5(MD5(password) + "SGCKEYSALT") is used instead. Added some
8726 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
8727 as the old Netscape_RSA functions except they have an additional
8728 'sgckey' parameter which uses the modified algorithm. Also added
8729 an -sgckey command line option to the rsa utility. Thanks to
8730 Adrian Peck <bertie@ncipher.com> for posting details of the modified
8731 algorithm to openssl-dev.
8734 *) The evp_local.h macros were using 'c.##kname' which resulted in
8735 invalid expansion on some systems (SCO 5.0.5 for example).
8736 Corrected to 'c.kname'.
8737 [Phillip Porch <root@theporch.com>]
8739 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
8740 a STACK of email addresses from a certificate or request, these look
8741 in the subject name and the subject alternative name extensions and
8742 omit any duplicate addresses.
8745 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
8746 This makes DSA verification about 2 % faster.
8749 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
8750 (meaning that now 2^5 values will be precomputed, which is only 4 KB
8751 plus overhead for 1024 bit moduli).
8752 This makes exponentiations about 0.5 % faster for 1024 bit
8753 exponents (as measured by "openssl speed rsa2048").
8756 *) Rename memory handling macros to avoid conflicts with other
8758 Malloc => OPENSSL_malloc
8759 Malloc_locked => OPENSSL_malloc_locked
8760 Realloc => OPENSSL_realloc
8761 Free => OPENSSL_free
8764 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
8765 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
8768 *) CygWin32 support.
8769 [John Jarvie <jjarvie@newsguy.com>]
8771 *) The type-safe stack code has been rejigged. It is now only compiled
8772 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
8773 by default all type-specific stack functions are "#define"d back to
8774 standard stack functions. This results in more streamlined output
8775 but retains the type-safety checking possibilities of the original
8779 *) The STACK code has been cleaned up, and certain type declarations
8780 that didn't make a lot of sense have been brought in line. This has
8781 also involved a cleanup of sorts in safestack.h to more correctly
8782 map type-safe stack functions onto their plain stack counterparts.
8783 This work has also resulted in a variety of "const"ifications of
8784 lots of the code, especially "_cmp" operations which should normally
8785 be prototyped with "const" parameters anyway.
8788 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
8789 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
8790 (The PRNG state consists of two parts, the large pool 'state' and 'md',
8791 where all of 'md' is used each time the PRNG is used, but 'state'
8792 is used only indexed by a cyclic counter. As entropy may not be
8793 well distributed from the beginning, 'md' is important as a
8794 chaining variable. However, the output function chains only half
8795 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
8796 all of 'md', and seeding with STATE_SIZE dummy bytes will result
8797 in all of 'state' being rewritten, with the new values depending
8798 on virtually all of 'md'. This overcomes the 80 bit limitation.)
8801 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
8802 the handshake is continued after ssl_verify_cert_chain();
8803 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
8804 can lead to 'unexplainable' connection aborts later.
8805 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
8807 *) Major EVP API cipher revision.
8808 Add hooks for extra EVP features. This allows various cipher
8809 parameters to be set in the EVP interface. Support added for variable
8810 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
8811 setting of RC2 and RC5 parameters.
8813 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
8816 Remove lots of duplicated code from the EVP library. For example *every*
8817 cipher init() function handles the 'iv' in the same way according to the
8818 cipher mode. They also all do nothing if the 'key' parameter is NULL and
8819 for CFB and OFB modes they zero ctx->num.
8821 New functionality allows removal of S/MIME code RC2 hack.
8823 Most of the routines have the same form and so can be declared in terms
8826 By shifting this to the top level EVP_CipherInit() it can be removed from
8827 all individual ciphers. If the cipher wants to handle IVs or keys
8828 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
8831 Change lots of functions like EVP_EncryptUpdate() to now return a
8832 value: although software versions of the algorithms cannot fail
8833 any installed hardware versions can.
8836 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
8837 this option is set, tolerate broken clients that send the negotiated
8838 protocol version number instead of the requested protocol version
8842 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
8843 i.e. non-zero for export ciphersuites, zero otherwise.
8844 Previous versions had this flag inverted, inconsistent with
8845 rsa_tmp_cb (..._TMP_RSA_CB).
8846 [Bodo Moeller; problem reported by Amit Chopra]
8848 *) Add missing DSA library text string. Work around for some IIS
8849 key files with invalid SEQUENCE encoding.
8852 *) Add a document (doc/standards.txt) that list all kinds of standards
8853 and so on that are implemented in OpenSSL.
8856 *) Enhance c_rehash script. Old version would mishandle certificates
8857 with the same subject name hash and wouldn't handle CRLs at all.
8858 Added -fingerprint option to crl utility, to support new c_rehash
8862 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
8865 *) Fix for SSL server purpose checking. Server checking was
8866 rejecting certificates which had extended key usage present
8867 but no ssl client purpose.
8868 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
8870 *) Make PKCS#12 code work with no password. The PKCS#12 spec
8871 is a little unclear about how a blank password is handled.
8872 Since the password in encoded as a BMPString with terminating
8873 double NULL a zero length password would end up as just the
8874 double NULL. However no password at all is different and is
8875 handled differently in the PKCS#12 key generation code. NS
8876 treats a blank password as zero length. MSIE treats it as no
8877 password on export: but it will try both on import. We now do
8878 the same: PKCS12_parse() tries zero length and no password if
8879 the password is set to "" or NULL (NULL is now a valid password:
8880 it wasn't before) as does the pkcs12 application.
8883 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
8884 perror when PEM_read_bio_X509_REQ fails, the error message must
8885 be obtained from the error queue.
8888 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
8889 it in ERR_remove_state if appropriate, and change ERR_get_state
8890 accordingly to avoid race conditions (this is necessary because
8891 thread_hash is no longer constant once set).
8894 *) Bugfix for linux-elf makefile.one.
8897 *) RSA_get_default_method() will now cause a default
8898 RSA_METHOD to be chosen if one doesn't exist already.
8899 Previously this was only set during a call to RSA_new()
8900 or RSA_new_method(NULL) meaning it was possible for
8901 RSA_get_default_method() to return NULL.
8904 *) Added native name translation to the existing DSO code
8905 that will convert (if the flag to do so is set) filenames
8906 that are sufficiently small and have no path information
8907 into a canonical native form. Eg. "blah" converted to
8908 "libblah.so" or "blah.dll" etc.
8911 *) New function ERR_error_string_n(e, buf, len) which is like
8912 ERR_error_string(e, buf), but writes at most 'len' bytes
8913 including the 0 terminator. For ERR_error_string_n, 'buf'
8915 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
8917 *) CONF library reworked to become more general. A new CONF
8918 configuration file reader "class" is implemented as well as a
8919 new functions (NCONF_*, for "New CONF") to handle it. The now
8920 old CONF_* functions are still there, but are reimplemented to
8921 work in terms of the new functions. Also, a set of functions
8922 to handle the internal storage of the configuration data is
8923 provided to make it easier to write new configuration file
8924 reader "classes" (I can definitely see something reading a
8925 configuration file in XML format, for example), called _CONF_*,
8926 or "the configuration storage API"...
8928 The new configuration file reading functions are:
8930 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
8931 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
8933 NCONF_default, NCONF_WIN32
8935 NCONF_dump_fp, NCONF_dump_bio
8937 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
8938 NCONF_new creates a new CONF object. This works in the same way
8939 as other interfaces in OpenSSL, like the BIO interface.
8940 NCONF_dump_* dump the internal storage of the configuration file,
8941 which is useful for debugging. All other functions take the same
8942 arguments as the old CONF_* functions wth the exception of the
8943 first that must be a `CONF *' instead of a `LHASH *'.
8945 To make it easer to use the new classes with the old CONF_* functions,
8946 the function CONF_set_default_method is provided.
8949 *) Add '-tls1' option to 'openssl ciphers', which was already
8950 mentioned in the documentation but had not been implemented.
8951 (This option is not yet really useful because even the additional
8952 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
8955 *) Initial DSO code added into libcrypto for letting OpenSSL (and
8956 OpenSSL-based applications) load shared libraries and bind to
8957 them in a portable way.
8958 [Geoff Thorpe, with contributions from Richard Levitte]
8960 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
8962 *) Make sure _lrotl and _lrotr are only used with MSVC.
8964 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
8965 (the default implementation of RAND_status).
8967 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
8968 to '-clrext' (= clear extensions), as intended and documented.
8969 [Bodo Moeller; inconsistency pointed out by Michael Attili
8972 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
8973 was larger than the MD block size.
8974 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
8976 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
8977 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
8978 using the passed key: if the passed key was a private key the result
8979 of X509_print(), for example, would be to print out all the private key
8983 *) des_quad_cksum() byte order bug fix.
8984 [Ulf Möller, using the problem description in krb4-0.9.7, where
8985 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
8987 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
8989 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
8991 *) For easily testing in shell scripts whether some command
8992 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
8993 returns with exit code 0 iff no command of the given name is available.
8994 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
8995 the output goes to stdout and nothing is printed to stderr.
8996 Additional arguments are always ignored.
8998 Since for each cipher there is a command of the same name,
8999 the 'no-cipher' compilation switches can be tested this way.
9001 ('openssl no-XXX' is not able to detect pseudo-commands such
9002 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
9005 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
9008 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
9009 is set; it will be thrown away anyway because each handshake creates
9011 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
9012 to parameters -- in previous versions (since OpenSSL 0.9.3) the
9013 'default key' from SSL_CTX_set_tmp_dh would always be lost, meaning
9014 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
9017 *) New s_client option -ign_eof: EOF at stdin is ignored, and
9018 'Q' and 'R' lose their special meanings (quit/renegotiate).
9019 This is part of what -quiet does; unlike -quiet, -ign_eof
9020 does not suppress any output.
9023 *) Add compatibility options to the purpose and trust code. The
9024 purpose X509_PURPOSE_ANY is "any purpose" which automatically
9025 accepts a certificate or CA, this was the previous behaviour,
9026 with all the associated security issues.
9028 X509_TRUST_COMPAT is the old trust behaviour: only and
9029 automatically trust self signed roots in certificate store. A
9030 new trust setting X509_TRUST_DEFAULT is used to specify that
9031 a purpose has no associated trust setting and it should instead
9032 use the value in the default purpose.
9035 *) Fix the PKCS#8 DSA private key code so it decodes keys again
9036 and fix a memory leak.
9039 *) In util/mkerr.pl (which implements 'make errors'), preserve
9040 reason strings from the previous version of the .c file, as
9041 the default to have only downcase letters (and digits) in
9042 automatically generated reasons codes is not always appropriate.
9045 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
9046 using strerror. Previously, ERR_reason_error_string() returned
9047 library names as reason strings for SYSerr; but SYSerr is a special
9048 case where small numbers are errno values, not library numbers.
9051 *) Add '-dsaparam' option to 'openssl dhparam' application. This
9052 converts DSA parameters into DH parameters. (When creating parameters,
9053 DSA_generate_parameters is used.)
9056 *) Include 'length' (recommended exponent length) in C code generated
9057 by 'openssl dhparam -C'.
9060 *) The second argument to set_label in perlasm was already being used
9061 so couldn't be used as a "file scope" flag. Moved to third argument
9065 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
9066 instead of RAND_bytes for encryption IVs and salts.
9069 *) Include RAND_status() into RAND_METHOD instead of implementing
9070 it only for md_rand.c Otherwise replacing the PRNG by calling
9071 RAND_set_rand_method would be impossible.
9074 *) Don't let DSA_generate_key() enter an infinite loop if the random
9075 number generation fails.
9078 *) New 'rand' application for creating pseudo-random output.
9081 *) Added configuration support for Linux/IA64
9082 [Rolf Haberrecker <rolf@suse.de>]
9084 *) Assembler module support for Mingw32.
9087 *) Shared library support for HPUX (in shlib/).
9088 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
9090 *) Shared library support for Solaris gcc.
9091 [Lutz Behnke <behnke@trustcenter.de>]
9093 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
9095 *) PKCS7_encrypt() was adding text MIME headers twice because they
9096 were added manually and by SMIME_crlf_copy().
9099 *) In bntest.c don't call BN_rand with zero bits argument.
9100 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
9102 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
9103 case was implemented. This caused BN_div_recp() to fail occasionally.
9106 *) Add an optional second argument to the set_label() in the perl
9107 assembly language builder. If this argument exists and is set
9108 to 1 it signals that the assembler should use a symbol whose
9109 scope is the entire file, not just the current function. This
9110 is needed with MASM which uses the format label:: for this scope.
9111 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
9113 *) Change the ASN1 types so they are typedefs by default. Before
9114 almost all types were #define'd to ASN1_STRING which was causing
9115 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
9119 *) Change names of new functions to the new get1/get0 naming
9120 convention: After 'get1', the caller owns a reference count
9121 and has to call ..._free; 'get0' returns a pointer to some
9122 data structure without incrementing reference counters.
9123 (Some of the existing 'get' functions increment a reference
9124 counter, some don't.)
9125 Similarly, 'set1' and 'add1' functions increase reference
9126 counters or duplicate objects.
9129 *) Allow for the possibility of temp RSA key generation failure:
9130 the code used to assume it always worked and crashed on failure.
9133 *) Fix potential buffer overrun problem in BIO_printf().
9134 [Ulf Möller, using public domain code by Patrick Powell; problem
9135 pointed out by David Sacerdote <das33@cornell.edu>]
9137 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
9138 RAND_egd() and RAND_status(). In the command line application,
9139 the EGD socket can be specified like a seed file using RANDFILE
9143 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
9144 Some CAs (e.g. Verisign) distribute certificates in this form.
9147 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
9148 list to exclude them. This means that no special compilation option
9149 is needed to use anonymous DH: it just needs to be included in the
9153 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
9154 EVP_MD_type. The old functionality is available in a new macro called
9155 EVP_MD_md(). Change code that uses it and update docs.
9158 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
9159 where the 'void *' argument is replaced by a function pointer argument.
9160 Previously 'void *' was abused to point to functions, which works on
9161 many platforms, but is not correct. As these functions are usually
9162 called by macros defined in OpenSSL header files, most source code
9163 should work without changes.
9166 *) <openssl/opensslconf.h> (which is created by Configure) now contains
9167 sections with information on -D... compiler switches used for
9168 compiling the library so that applications can see them. To enable
9169 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
9170 must be defined. E.g.,
9171 #define OPENSSL_ALGORITHM_DEFINES
9172 #include <openssl/opensslconf.h>
9173 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
9174 [Richard Levitte, Ulf and Bodo Möller]
9176 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
9180 *) Change the 'other' type in certificate aux info to a STACK_OF
9181 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
9182 the required ASN1 format: arbitrary types determined by an OID.
9185 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
9186 argument to 'req'. This is not because the function is newer or
9187 better than others it just uses the work 'NEW' in the certificate
9188 request header lines. Some software needs this.
9191 *) Reorganise password command line arguments: now passwords can be
9192 obtained from various sources. Delete the PEM_cb function and make
9193 it the default behaviour: i.e. if the callback is NULL and the
9194 usrdata argument is not NULL interpret it as a null terminated pass
9195 phrase. If usrdata and the callback are NULL then the pass phrase
9196 is prompted for as usual.
9199 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
9200 the support is automatically enabled. The resulting binaries will
9201 autodetect the card and use it if present.
9202 [Ben Laurie and Compaq Inc.]
9204 *) Work around for Netscape hang bug. This sends certificate request
9205 and server done in one record. Since this is perfectly legal in the
9206 SSL/TLS protocol it isn't a "bug" option and is on by default. See
9207 the bugs/SSLv3 entry for more info.
9210 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
9213 *) Add -rand argument to smime and pkcs12 applications and read/write
9217 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
9220 *) Add command line password options to the remaining applications.
9223 *) Bug fix for BN_div_recp() for numerators with an even number of
9227 *) More tests in bntest.c, and changed test_bn output.
9230 *) ./config recognizes MacOS X now.
9233 *) Bug fix for BN_div() when the first words of num and divsor are
9234 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
9237 *) Add support for various broken PKCS#8 formats, and command line
9238 options to produce them.
9241 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
9242 get temporary BIGNUMs from a BN_CTX.
9245 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
9249 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
9250 include a #define from the old name to the new. The original intent
9251 was that statically linked binaries could for example just call
9252 SSLeay_add_all_ciphers() to just add ciphers to the table and not
9253 link with digests. This never worked because SSLeay_add_all_digests()
9254 and SSLeay_add_all_ciphers() were in the same source file so calling
9255 one would link with the other. They are now in separate source files.
9258 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
9261 *) Use a less unusual form of the Miller-Rabin primality test (it used
9262 a binary algorithm for exponentiation integrated into the Miller-Rabin
9263 loop, our standard modexp algorithms are faster).
9266 *) Support for the EBCDIC character set completed.
9267 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
9269 *) Source code cleanups: use const where appropriate, eliminate casts,
9270 use void * instead of char * in lhash.
9273 *) Bugfix: ssl3_send_server_key_exchange was not restartable
9274 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
9275 this the server could overwrite ephemeral keys that the client
9279 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
9280 using 50 iterations of the Rabin-Miller test.
9282 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
9283 iterations of the Rabin-Miller test as required by the appendix
9284 to FIPS PUB 186[-1]) instead of DSA_is_prime.
9285 As BN_is_prime_fasttest includes trial division, DSA parameter
9286 generation becomes much faster.
9288 This implies a change for the callback functions in DSA_is_prime
9289 and DSA_generate_parameters: The callback function is called once
9290 for each positive witness in the Rabin-Miller test, not just
9291 occasionally in the inner loop; and the parameters to the
9292 callback function now provide an iteration count for the outer
9293 loop rather than for the current invocation of the inner loop.
9294 DSA_generate_parameters additionally can call the callback
9295 function with an 'iteration count' of -1, meaning that a
9296 candidate has passed the trial division test (when q is generated
9297 from an application-provided seed, trial division is skipped).
9300 *) New function BN_is_prime_fasttest that optionally does trial
9301 division before starting the Rabin-Miller test and has
9302 an additional BN_CTX * argument (whereas BN_is_prime always
9303 has to allocate at least one BN_CTX).
9304 'callback(1, -1, cb_arg)' is called when a number has passed the
9305 trial division stage.
9308 *) Fix for bug in CRL encoding. The validity dates weren't being handled
9312 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
9315 *) New function BN_pseudo_rand().
9318 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
9319 bignum version of BN_from_montgomery() with the working code from
9320 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
9324 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
9325 made it impossible to use the same SSL_SESSION data structure in
9326 SSL2 clients in multiple threads.
9329 *) The return value of RAND_load_file() no longer counts bytes obtained
9330 by stat(). RAND_load_file(..., -1) is new and uses the complete file
9331 to seed the PRNG (previously an explicit byte count was required).
9332 [Ulf Möller, Bodo Möller]
9334 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
9335 used (char *) instead of (void *) and had casts all over the place.
9338 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
9341 *) Retain source code compatibility for BN_prime_checks macro:
9342 BN_is_prime(..., BN_prime_checks, ...) now uses
9343 BN_prime_checks_for_size to determine the appropriate number of
9344 Rabin-Miller iterations.
9347 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
9348 DH_CHECK_P_NOT_SAFE_PRIME.
9349 (Check if this is true? OpenPGP calls them "strong".)
9352 *) Merge the functionality of "dh" and "gendh" programs into a new program
9353 "dhparam". The old programs are retained for now but will handle DH keys
9354 (instead of parameters) in future.
9357 *) Make the ciphers, s_server and s_client programs check the return values
9358 when a new cipher list is set.
9361 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
9362 ciphers. Before when the 56bit ciphers were enabled the sorting was
9365 The syntax for the cipher sorting has been extended to support sorting by
9366 cipher-strength (using the strength_bits hard coded in the tables).
9367 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
9369 Fix a bug in the cipher-command parser: when supplying a cipher command
9370 string with an "undefined" symbol (neither command nor alphanumeric
9371 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
9372 an error is flagged.
9374 Due to the strength-sorting extension, the code of the
9375 ssl_create_cipher_list() function was completely rearranged. I hope that
9376 the readability was also increased :-)
9377 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
9379 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
9380 for the first serial number and places 2 in the serial number file. This
9381 avoids problems when the root CA is created with serial number zero and
9382 the first user certificate has the same issuer name and serial number
9386 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
9387 the new code. Add documentation for this stuff.
9390 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
9391 X509_*() to X509at_*() on the grounds that they don't handle X509
9392 structures and behave in an analogous way to the X509v3 functions:
9393 they shouldn't be called directly but wrapper functions should be used
9396 So we also now have some wrapper functions that call the X509at functions
9397 when passed certificate requests. (TO DO: similar things can be done with
9398 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
9399 things. Some of these need some d2i or i2d and print functionality
9400 because they handle more complex structures.)
9403 *) Add missing #ifndefs that caused missing symbols when building libssl
9404 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
9405 NO_RSA in ssl/s2*.c.
9406 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
9408 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
9409 has a return value which indicates the quality of the random data
9410 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
9411 error queue. New function RAND_pseudo_bytes() generates output that is
9412 guaranteed to be unique but not unpredictable. RAND_add is like
9413 RAND_seed, but takes an extra argument for an entropy estimate
9414 (RAND_seed always assumes full entropy).
9417 *) Do more iterations of Rabin-Miller probable prime test (specifically,
9418 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
9419 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
9420 in crypto/bn/bn_prime.c for the complete table). This guarantees a
9421 false-positive rate of at most 2^-80 for random input.
9424 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
9427 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
9428 in the 0.9.5 release), this returns the chain
9429 from an X509_CTX structure with a dup of the stack and all
9430 the X509 reference counts upped: so the stack will exist
9431 after X509_CTX_cleanup() has been called. Modify pkcs12.c
9434 Also make SSL_SESSION_print() print out the verify return
9438 *) Add manpage for the pkcs12 command. Also change the default
9439 behaviour so MAC iteration counts are used unless the new
9440 -nomaciter option is used. This improves file security and
9441 only older versions of MSIE (4.0 for example) need it.
9444 *) Honor the no-xxx Configure options when creating .DEF files.
9447 *) Add PKCS#10 attributes to field table: challengePassword,
9448 unstructuredName and unstructuredAddress. These are taken from
9449 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
9450 international characters are used.
9452 More changes to X509_ATTRIBUTE code: allow the setting of types
9453 based on strings. Remove the 'loc' parameter when adding
9454 attributes because these will be a SET OF encoding which is sorted
9458 *) Initial changes to the 'req' utility to allow request generation
9459 automation. This will allow an application to just generate a template
9460 file containing all the field values and have req construct the
9463 Initial support for X509_ATTRIBUTE handling. Stacks of these are
9464 used all over the place including certificate requests and PKCS#7
9465 structures. They are currently handled manually where necessary with
9466 some primitive wrappers for PKCS#7. The new functions behave in a
9467 manner analogous to the X509 extension functions: they allow
9468 attributes to be looked up by NID and added.
9470 Later something similar to the X509V3 code would be desirable to
9471 automatically handle the encoding, decoding and printing of the
9472 more complex types. The string types like challengePassword can
9473 be handled by the string table functions.
9475 Also modified the multi byte string table handling. Now there is
9476 a 'global mask' which masks out certain types. The table itself
9477 can use the flag STABLE_NO_MASK to ignore the mask setting: this
9478 is useful when for example there is only one permissible type
9479 (as in countryName) and using the mask might result in no valid
9483 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
9484 SSL_get_peer_finished to allow applications to obtain the latest
9485 Finished messages sent to the peer or expected from the peer,
9486 respectively. (SSL_get_peer_finished is usually the Finished message
9487 actually received from the peer, otherwise the protocol will be aborted.)
9489 As the Finished message are message digests of the complete handshake
9490 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
9491 be used for external authentication procedures when the authentication
9492 provided by SSL/TLS is not desired or is not enough.
9495 *) Enhanced support for Alpha Linux is added. Now ./config checks if
9496 the host supports BWX extension and if Compaq C is present on the
9497 $PATH. Just exploiting of the BWX extension results in 20-30%
9498 performance kick for some algorithms, e.g. DES and RC4 to mention
9499 a couple. Compaq C in turn generates ~20% faster code for MD5 and
9503 *) Add support for MS "fast SGC". This is arguably a violation of the
9504 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
9505 weak crypto and after checking the certificate is SGC a second one
9506 with strong crypto. MS SGC stops the first handshake after receiving
9507 the server certificate message and sends a second client hello. Since
9508 a server will typically do all the time consuming operations before
9509 expecting any further messages from the client (server key exchange
9510 is the most expensive) there is little difference between the two.
9512 To get OpenSSL to support MS SGC we have to permit a second client
9513 hello message after we have sent server done. In addition we have to
9514 reset the MAC if we do get this second client hello.
9517 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
9518 if a DER encoded private key is RSA or DSA traditional format. Changed
9519 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
9520 format DER encoded private key. Newer code should use PKCS#8 format which
9521 has the key type encoded in the ASN1 structure. Added DER private key
9522 support to pkcs8 application.
9525 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
9526 ciphersuites has been selected (as required by the SSL 3/TLS 1
9527 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
9528 is set, we interpret this as a request to violate the specification
9529 (the worst that can happen is a handshake failure, and 'correct'
9530 behaviour would result in a handshake failure anyway).
9533 *) In SSL_CTX_add_session, take into account that there might be multiple
9534 SSL_SESSION structures with the same session ID (e.g. when two threads
9535 concurrently obtain them from an external cache).
9536 The internal cache can handle only one SSL_SESSION with a given ID,
9537 so if there's a conflict, we now throw out the old one to achieve
9541 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
9542 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
9543 some routines that use cipher OIDs: some ciphers do not have OIDs
9544 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
9548 *) Simplify the trust setting structure and code. Now we just have
9549 two sequences of OIDs for trusted and rejected settings. These will
9550 typically have values the same as the extended key usage extension
9551 and any application specific purposes.
9553 The trust checking code now has a default behaviour: it will just
9554 check for an object with the same NID as the passed id. Functions can
9555 be provided to override either the default behaviour or the behaviour
9556 for a given id. SSL client, server and email already have functions
9557 in place for compatibility: they check the NID and also return "trusted"
9558 if the certificate is self signed.
9561 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
9562 traditional format into an EVP_PKEY structure.
9565 *) Add a password callback function PEM_cb() which either prompts for
9566 a password if usr_data is NULL or otherwise assumes it is a null
9567 terminated password. Allow passwords to be passed on command line
9568 environment or config files in a few more utilities.
9571 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
9572 keys. Add some short names for PKCS#8 PBE algorithms and allow them
9573 to be specified on the command line for the pkcs8 and pkcs12 utilities.
9574 Update documentation.
9577 *) Support for ASN1 "NULL" type. This could be handled before by using
9578 ASN1_TYPE but there wasn't any function that would try to read a NULL
9579 and produce an error if it couldn't. For compatibility we also have
9580 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
9581 don't allocate anything because they don't need to.
9584 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
9586 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
9588 *) Rebuild of the memory allocation routines used by OpenSSL code and
9589 possibly others as well. The purpose is to make an interface that
9590 provide hooks so anyone can build a separate set of allocation and
9591 deallocation routines to be used by OpenSSL, for example memory
9592 pool implementations, or something else, which was previously hard
9593 since Malloc(), Realloc() and Free() were defined as macros having
9594 the values malloc, realloc and free, respectively (except for Win32
9595 compilations). The same is provided for memory debugging code.
9596 OpenSSL already comes with functionality to find memory leaks, but
9597 this gives people a chance to debug other memory problems.
9599 With these changes, a new set of functions and macros have appeared:
9601 CRYPTO_set_mem_debug_functions() [F]
9602 CRYPTO_get_mem_debug_functions() [F]
9603 CRYPTO_dbg_set_options() [F]
9604 CRYPTO_dbg_get_options() [F]
9605 CRYPTO_malloc_debug_init() [M]
9607 The memory debug functions are NULL by default, unless the library
9608 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
9609 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
9610 gives the standard debugging functions that come with OpenSSL) or
9611 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
9612 provided by the library user) must be used. When the standard
9613 debugging functions are used, CRYPTO_dbg_set_options can be used to
9614 request additional information:
9615 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
9616 the CRYPTO_MDEBUG_xxx macro when compiling the library.
9618 Also, things like CRYPTO_set_mem_functions will always give the
9619 expected result (the new set of functions is used for allocation
9620 and deallocation) at all times, regardless of platform and compiler
9623 To finish it up, some functions that were never use in any other
9624 way than through macros have a new API and new semantic:
9627 CRYPTO_dbg_realloc()
9630 All macros of value have retained their old syntax.
9631 [Richard Levitte and Bodo Moeller]
9633 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
9634 ordering of SMIMECapabilities wasn't in "strength order" and there
9635 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
9639 *) Some ASN1 types with illegal zero length encoding (INTEGER,
9640 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
9641 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
9643 *) Merge in my S/MIME library for OpenSSL. This provides a simple
9644 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
9645 functionality to handle multipart/signed properly) and a utility
9646 called 'smime' to call all this stuff. This is based on code I
9647 originally wrote for Celo who have kindly allowed it to be
9648 included in OpenSSL.
9651 *) Add variants des_set_key_checked and des_set_key_unchecked of
9652 des_set_key (aka des_key_sched). Global variable des_check_key
9653 decides which of these is called by des_set_key; this way
9654 des_check_key behaves as it always did, but applications and
9655 the library itself, which was buggy for des_check_key == 1,
9656 have a cleaner way to pick the version they need.
9659 *) New function PKCS12_newpass() which changes the password of a
9663 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
9664 dynamic mix. In both cases the ids can be used as an index into the
9665 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
9666 functions so they accept a list of the field values and the
9667 application doesn't need to directly manipulate the X509_TRUST
9671 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
9675 *) Modify the way the V3 extension code looks up extensions. This now
9676 works in a similar way to the object code: we have some "standard"
9677 extensions in a static table which is searched with OBJ_bsearch()
9678 and the application can add dynamic ones if needed. The file
9679 crypto/x509v3/ext_dat.h now has the info: this file needs to be
9680 updated whenever a new extension is added to the core code and kept
9681 in ext_nid order. There is a simple program 'tabtest.c' which checks
9682 this. New extensions are not added too often so this file can readily
9683 be maintained manually.
9685 There are two big advantages in doing things this way. The extensions
9686 can be looked up immediately and no longer need to be "added" using
9687 X509V3_add_standard_extensions(): this function now does nothing.
9688 [Side note: I get *lots* of email saying the extension code doesn't
9689 work because people forget to call this function]
9690 Also no dynamic allocation is done unless new extensions are added:
9691 so if we don't add custom extensions there is no need to call
9692 X509V3_EXT_cleanup().
9695 *) Modify enc utility's salting as follows: make salting the default. Add a
9696 magic header, so unsalted files fail gracefully instead of just decrypting
9697 to garbage. This is because not salting is a big security hole, so people
9698 should be discouraged from doing it.
9701 *) Fixes and enhancements to the 'x509' utility. It allowed a message
9702 digest to be passed on the command line but it only used this
9703 parameter when signing a certificate. Modified so all relevant
9704 operations are affected by the digest parameter including the
9705 -fingerprint and -x509toreq options. Also -x509toreq choked if a
9706 DSA key was used because it didn't fix the digest.
9709 *) Initial certificate chain verify code. Currently tests the untrusted
9710 certificates for consistency with the verify purpose (which is set
9711 when the X509_STORE_CTX structure is set up) and checks the pathlength.
9713 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
9714 this is because it will reject chains with invalid extensions whereas
9715 every previous version of OpenSSL and SSLeay made no checks at all.
9717 Trust code: checks the root CA for the relevant trust settings. Trust
9718 settings have an initial value consistent with the verify purpose: e.g.
9719 if the verify purpose is for SSL client use it expects the CA to be
9720 trusted for SSL client use. However the default value can be changed to
9721 permit custom trust settings: one example of this would be to only trust
9722 certificates from a specific "secure" set of CAs.
9724 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
9725 which should be used for version portability: especially since the
9726 verify structure is likely to change more often now.
9728 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
9729 to set them. If not set then assume SSL clients will verify SSL servers
9732 Two new options to the verify program: -untrusted allows a set of
9733 untrusted certificates to be passed in and -purpose which sets the
9734 intended purpose of the certificate. If a purpose is set then the
9735 new chain verify code is used to check extension consistency.
9738 *) Support for the authority information access extension.
9741 *) Modify RSA and DSA PEM read routines to transparently handle
9742 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
9743 public keys in a format compatible with certificate
9744 SubjectPublicKeyInfo structures. Unfortunately there were already
9745 functions called *_PublicKey_* which used various odd formats so
9746 these are retained for compatibility: however the DSA variants were
9747 never in a public release so they have been deleted. Changed dsa/rsa
9748 utilities to handle the new format: note no releases ever handled public
9749 keys so we should be OK.
9751 The primary motivation for this change is to avoid the same fiasco
9752 that dogs private keys: there are several incompatible private key
9753 formats some of which are standard and some OpenSSL specific and
9754 require various evil hacks to allow partial transparent handling and
9755 even then it doesn't work with DER formats. Given the option anything
9756 other than PKCS#8 should be dumped: but the other formats have to
9757 stay in the name of compatibility.
9759 With public keys and the benefit of hindsight one standard format
9760 is used which works with EVP_PKEY, RSA or DSA structures: though
9761 it clearly returns an error if you try to read the wrong kind of key.
9763 Added a -pubkey option to the 'x509' utility to output the public key.
9764 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
9765 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
9766 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
9767 that do the same as the EVP_PKEY_assign_*() except they up the
9768 reference count of the added key (they don't "swallow" the
9772 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
9773 CRLs would fail if the file contained no certificates or no CRLs:
9774 added a new function to read in both types and return the number
9775 read: this means that if none are read it will be an error. The
9776 DER versions of the certificate and CRL reader would always fail
9777 because it isn't possible to mix certificates and CRLs in DER format
9778 without choking one or the other routine. Changed this to just read
9779 a certificate: this is the best we can do. Also modified the code
9780 in apps/verify.c to take notice of return codes: it was previously
9781 attempting to read in certificates from NULL pointers and ignoring
9782 any errors: this is one reason why the cert and CRL reader seemed
9783 to work. It doesn't check return codes from the default certificate
9784 routines: these may well fail if the certificates aren't installed.
9787 *) Code to support otherName option in GeneralName.
9790 *) First update to verify code. Change the verify utility
9791 so it warns if it is passed a self signed certificate:
9792 for consistency with the normal behaviour. X509_verify
9793 has been modified to it will now verify a self signed
9794 certificate if *exactly* the same certificate appears
9795 in the store: it was previously impossible to trust a
9796 single self signed certificate. This means that:
9797 openssl verify ss.pem
9798 now gives a warning about a self signed certificate but
9799 openssl verify -CAfile ss.pem ss.pem
9803 *) For servers, store verify_result in SSL_SESSION data structure
9804 (and add it to external session representation).
9805 This is needed when client certificate verifications fails,
9806 but an application-provided verification callback (set by
9807 SSL_CTX_set_cert_verify_callback) allows accepting the session
9808 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
9809 but returns 1): When the session is reused, we have to set
9810 ssl->verify_result to the appropriate error code to avoid
9812 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
9814 *) Fix a bug in the new PKCS#7 code: it didn't consider the
9815 case in PKCS7_dataInit() where the signed PKCS7 structure
9816 didn't contain any existing data because it was being created.
9817 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
9819 *) Add a salt to the key derivation routines in enc.c. This
9820 forms the first 8 bytes of the encrypted file. Also add a
9821 -S option to allow a salt to be input on the command line.
9824 *) New function X509_cmp(). Oddly enough there wasn't a function
9825 to compare two certificates. We do this by working out the SHA1
9826 hash and comparing that. X509_cmp() will be needed by the trust
9830 *) SSL_get1_session() is like SSL_get_session(), but increments
9831 the reference count in the SSL_SESSION returned.
9832 [Geoff Thorpe <geoff@eu.c2.net>]
9834 *) Fix for 'req': it was adding a null to request attributes.
9835 Also change the X509_LOOKUP and X509_INFO code to handle
9836 certificate auxiliary information.
9839 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
9843 *) Add the possibility to add extra information to the memory leak
9844 detecting output, to form tracebacks, showing from where each
9845 allocation was originated: CRYPTO_push_info("constant string") adds
9846 the string plus current file name and line number to a per-thread
9847 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
9848 is like calling CYRPTO_pop_info() until the stack is empty.
9849 Also updated memory leak detection code to be multi-thread-safe.
9852 *) Add options -text and -noout to pkcs7 utility and delete the
9853 encryption options which never did anything. Update docs.
9856 *) Add options to some of the utilities to allow the pass phrase
9857 to be included on either the command line (not recommended on
9858 OSes like Unix) or read from the environment. Update the
9859 manpages and fix a few bugs.
9862 *) Add a few manpages for some of the openssl commands.
9865 *) Fix the -revoke option in ca. It was freeing up memory twice,
9866 leaking and not finding already revoked certificates.
9869 *) Extensive changes to support certificate auxiliary information.
9870 This involves the use of X509_CERT_AUX structure and X509_AUX
9871 functions. An X509_AUX function such as PEM_read_X509_AUX()
9872 can still read in a certificate file in the usual way but it
9873 will also read in any additional "auxiliary information". By
9874 doing things this way a fair degree of compatibility can be
9875 retained: existing certificates can have this information added
9876 using the new 'x509' options.
9878 Current auxiliary information includes an "alias" and some trust
9879 settings. The trust settings will ultimately be used in enhanced
9880 certificate chain verification routines: currently a certificate
9881 can only be trusted if it is self signed and then it is trusted
9885 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
9886 The problem was that one of the replacement routines had not been working
9887 since SSLeay releases. For now the offending routine has been replaced
9888 with non-optimised assembler. Even so, this now gives around 95%
9889 performance improvement for 1024 bit RSA signs.
9892 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
9893 handling. Most clients have the effective key size in bits equal to
9894 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
9895 A few however don't do this and instead use the size of the decrypted key
9896 to determine the RC2 key length and the AlgorithmIdentifier to determine
9897 the effective key length. In this case the effective key length can still
9898 be 40 bits but the key length can be 168 bits for example. This is fixed
9899 by manually forcing an RC2 key into the EVP_PKEY structure because the
9900 EVP code can't currently handle unusual RC2 key sizes: it always assumes
9901 the key length and effective key length are equal.
9904 *) Add a bunch of functions that should simplify the creation of
9905 X509_NAME structures. Now you should be able to do:
9906 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
9907 and have it automatically work out the correct field type and fill in
9908 the structures. The more adventurous can try:
9909 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
9910 and it will (hopefully) work out the correct multibyte encoding.
9913 *) Change the 'req' utility to use the new field handling and multibyte
9914 copy routines. Before the DN field creation was handled in an ad hoc
9915 way in req, ca, and x509 which was rather broken and didn't support
9916 BMPStrings or UTF8Strings. Since some software doesn't implement
9917 BMPStrings or UTF8Strings yet, they can be enabled using the config file
9918 using the dirstring_type option. See the new comment in the default
9919 openssl.cnf for more info.
9922 *) Make crypto/rand/md_rand.c more robust:
9923 - Assure unique random numbers after fork().
9924 - Make sure that concurrent threads access the global counter and
9925 md serializably so that we never lose entropy in them
9926 or use exactly the same state in multiple threads.
9927 Access to the large state is not always serializable because
9928 the additional locking could be a performance killer, and
9929 md should be large enough anyway.
9932 *) New file apps/app_rand.c with commonly needed functionality
9933 for handling the random seed file.
9935 Use the random seed file in some applications that previously did not:
9937 dsaparam -genkey (which also ignored its '-rand' option),
9940 x509 (when signing).
9941 Except on systems with /dev/urandom, it is crucial to have a random
9942 seed file at least for key creation, DSA signing, and for DH exchanges;
9943 for RSA signatures we could do without one.
9945 gendh and gendsa (unlike genrsa) used to read only the first byte
9946 of each file listed in the '-rand' option. The function as previously
9947 found in genrsa is now in app_rand.c and is used by all programs
9948 that support '-rand'.
9951 *) In RAND_write_file, use mode 0600 for creating files;
9952 don't just chmod when it may be too late.
9955 *) Report an error from X509_STORE_load_locations
9956 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
9959 *) New function ASN1_mbstring_copy() this copies a string in either
9960 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
9961 into an ASN1_STRING type. A mask of permissible types is passed
9962 and it chooses the "minimal" type to use or an error if not type
9966 *) Add function equivalents to the various macros in asn1.h. The old
9967 macros are retained with an M_ prefix. Code inside the library can
9968 use the M_ macros. External code (including the openssl utility)
9969 should *NOT* in order to be "shared library friendly".
9972 *) Add various functions that can check a certificate's extensions
9973 to see if it usable for various purposes such as SSL client,
9974 server or S/MIME and CAs of these types. This is currently
9975 VERY EXPERIMENTAL but will ultimately be used for certificate chain
9976 verification. Also added a -purpose flag to x509 utility to
9977 print out all the purposes.
9980 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
9984 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
9985 for, obtain and decode and extension and obtain its critical flag.
9986 This allows all the necessary extension code to be handled in a
9987 single function call.
9990 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
9991 platforms. See crypto/rc4/rc4_enc.c for further details.
9994 *) New -noout option to asn1parse. This causes no output to be produced
9995 its main use is when combined with -strparse and -out to extract data
9996 from a file (which may not be in ASN.1 format).
9999 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
10000 when producing the local key id.
10001 [Richard Levitte <levitte@stacken.kth.se>]
10003 *) New option -dhparam in s_server. This allows a DH parameter file to be
10004 stated explicitly. If it is not stated then it tries the first server
10005 certificate file. The previous behaviour hard coded the filename
10009 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
10010 a public key to be input or output. For example:
10011 openssl rsa -in key.pem -pubout -out pubkey.pem
10012 Also added necessary DSA public key functions to handle this.
10015 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
10016 in the message. This was handled by allowing
10017 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
10018 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
10020 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
10021 to the end of the strings whereas this didn't. This would cause problems
10022 if strings read with d2i_ASN1_bytes() were later modified.
10023 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
10025 *) Fix for base64 decode bug. When a base64 bio reads only one line of
10026 data and it contains EOF it will end up returning an error. This is
10027 caused by input 46 bytes long. The cause is due to the way base64
10028 BIOs find the start of base64 encoded data. They do this by trying a
10029 trial decode on each line until they find one that works. When they
10030 do a flag is set and it starts again knowing it can pass all the
10031 data directly through the decoder. Unfortunately it doesn't reset
10032 the context it uses. This means that if EOF is reached an attempt
10033 is made to pass two EOFs through the context and this causes the
10034 resulting error. This can also cause other problems as well. As is
10035 usual with these problems it takes *ages* to find and the fix is
10036 trivial: move one line.
10037 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
10039 *) Ugly workaround to get s_client and s_server working under Windows. The
10040 old code wouldn't work because it needed to select() on sockets and the
10041 tty (for keypresses and to see if data could be written). Win32 only
10042 supports select() on sockets so we select() with a 1s timeout on the
10043 sockets and then see if any characters are waiting to be read, if none
10044 are present then we retry, we also assume we can always write data to
10045 the tty. This isn't nice because the code then blocks until we've
10046 received a complete line of data and it is effectively polling the
10047 keyboard at 1s intervals: however it's quite a bit better than not
10048 working at all :-) A dedicated Windows application might handle this
10049 with an event loop for example.
10052 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
10053 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
10054 will be called when RSA_sign() and RSA_verify() are used. This is useful
10055 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
10056 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
10057 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
10058 This necessitated the support of an extra signature type NID_md5_sha1
10059 for SSL signatures and modifications to the SSL library to use it instead
10060 of calling RSA_public_decrypt() and RSA_private_encrypt().
10063 *) Add new -verify -CAfile and -CApath options to the crl program, these
10064 will lookup a CRL issuers certificate and verify the signature in a
10065 similar way to the verify program. Tidy up the crl program so it
10066 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
10067 less strict. It will now permit CRL extensions even if it is not
10068 a V2 CRL: this will allow it to tolerate some broken CRLs.
10071 *) Initialize all non-automatic variables each time one of the openssl
10072 sub-programs is started (this is necessary as they may be started
10073 multiple times from the "OpenSSL>" prompt).
10074 [Lennart Bang, Bodo Moeller]
10076 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
10077 removing all other RSA functionality (this is what NO_RSA does). This
10078 is so (for example) those in the US can disable those operations covered
10079 by the RSA patent while allowing storage and parsing of RSA keys and RSA
10083 *) Non-copying interface to BIO pairs.
10084 (still largely untested)
10087 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
10088 ASCII string. This was handled independently in various places before.
10091 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
10092 UTF8 strings a character at a time.
10095 *) Use client_version from client hello to select the protocol
10096 (s23_srvr.c) and for RSA client key exchange verification
10097 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
10100 *) Add various utility functions to handle SPKACs, these were previously
10101 handled by poking round in the structure internals. Added new function
10102 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
10103 print, verify and generate SPKACs. Based on an original idea from
10104 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
10107 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
10110 *) Allow the config file extension section to be overwritten on the
10111 command line. Based on an original idea from Massimiliano Pala
10112 <madwolf@comune.modena.it>. The new option is called -extensions
10113 and can be applied to ca, req and x509. Also -reqexts to override
10114 the request extensions in req and -crlexts to override the crl extensions
10118 *) Add new feature to the SPKAC handling in ca. Now you can include
10119 the same field multiple times by preceding it by "XXXX." for example:
10122 this is the same syntax as used in the req config file.
10125 *) Allow certificate extensions to be added to certificate requests. These
10126 are specified in a 'req_extensions' option of the req section of the
10127 config file. They can be printed out with the -text option to req but
10128 are otherwise ignored at present.
10131 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
10132 data read consists of only the final block it would not decrypted because
10133 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
10134 A misplaced 'break' also meant the decrypted final block might not be
10135 copied until the next read.
10138 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
10139 a few extra parameters to the DH structure: these will be useful if
10140 for example we want the value of 'q' or implement X9.42 DH.
10143 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
10144 provides hooks that allow the default DSA functions or functions on a
10145 "per key" basis to be replaced. This allows hardware acceleration and
10146 hardware key storage to be handled without major modification to the
10147 library. Also added low level modexp hooks and CRYPTO_EX structure and
10148 associated functions.
10151 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
10152 as "read only": it can't be written to and the buffer it points to will
10153 not be freed. Reading from a read only BIO is much more efficient than
10154 a normal memory BIO. This was added because there are several times when
10155 an area of memory needs to be read from a BIO. The previous method was
10156 to create a memory BIO and write the data to it, this results in two
10157 copies of the data and an O(n^2) reading algorithm. There is a new
10158 function BIO_new_mem_buf() which creates a read only memory BIO from
10159 an area of memory. Also modified the PKCS#7 routines to use read only
10163 *) Bugfix: ssl23_get_client_hello did not work properly when called in
10164 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
10165 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
10166 but a retry condition occurred while trying to read the rest.
10169 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
10170 NID_pkcs7_encrypted by default: this was wrong since this should almost
10171 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
10172 the encrypted data type: this is a more sensible place to put it and it
10173 allows the PKCS#12 code to be tidied up that duplicated this
10177 *) Changed obj_dat.pl script so it takes its input and output files on
10178 the command line. This should avoid shell escape redirection problems
10182 *) Initial support for certificate extension requests, these are included
10183 in things like Xenroll certificate requests. Included functions to allow
10184 extensions to be obtained and added.
10187 *) -crlf option to s_client and s_server for sending newlines as
10188 CRLF (as required by many protocols).
10191 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
10193 *) Install libRSAglue.a when OpenSSL is built with RSAref.
10194 [Ralf S. Engelschall]
10196 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
10197 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
10199 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
10203 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
10204 DH parameters/keys (q is lost during that conversion, but the resulting
10205 DH parameters contain its length).
10207 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
10208 much faster than DH_generate_parameters (which creates parameters
10209 where p = 2*q + 1), and also the smaller q makes DH computations
10210 much more efficient (160-bit exponentiation instead of 1024-bit
10211 exponentiation); so this provides a convenient way to support DHE
10212 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
10213 utter importance to use
10214 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
10216 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
10217 when such DH parameters are used, because otherwise small subgroup
10218 attacks may become possible!
10221 *) Avoid memory leak in i2d_DHparams.
10224 *) Allow the -k option to be used more than once in the enc program:
10225 this allows the same encrypted message to be read by multiple recipients.
10228 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
10229 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
10230 it will always use the numerical form of the OID, even if it has a short
10234 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
10235 method only got called if p,q,dmp1,dmq1,iqmp components were present,
10236 otherwise bn_mod_exp was called. In the case of hardware keys for example
10237 no private key components need be present and it might store extra data
10238 in the RSA structure, which cannot be accessed from bn_mod_exp.
10239 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
10240 private key operations.
10243 *) Added support for SPARC Linux.
10246 *) pem_password_cb function type incompatibly changed from
10247 typedef int pem_password_cb(char *buf, int size, int rwflag);
10249 ....(char *buf, int size, int rwflag, void *userdata);
10250 so that applications can pass data to their callbacks:
10251 The PEM[_ASN1]_{read,write}... functions and macros now take an
10252 additional void * argument, which is just handed through whenever
10253 the password callback is called.
10254 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
10256 New function SSL_CTX_set_default_passwd_cb_userdata.
10258 Compatibility note: As many C implementations push function arguments
10259 onto the stack in reverse order, the new library version is likely to
10260 interoperate with programs that have been compiled with the old
10261 pem_password_cb definition (PEM_whatever takes some data that
10262 happens to be on the stack as its last argument, and the callback
10263 just ignores this garbage); but there is no guarantee whatsoever that
10266 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
10267 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
10268 problems not only on Windows, but also on some Unix platforms.
10269 To avoid problematic command lines, these definitions are now in an
10270 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
10271 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
10274 *) MIPS III/IV assembler module is reimplemented.
10277 *) More DES library cleanups: remove references to srand/rand and
10278 delete an unused file.
10281 *) Add support for the the free Netwide assembler (NASM) under Win32,
10282 since not many people have MASM (ml) and it can be hard to obtain.
10283 This is currently experimental but it seems to work OK and pass all
10284 the tests. Check out INSTALL.W32 for info.
10287 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
10288 without temporary keys kept an extra copy of the server key,
10289 and connections with temporary keys did not free everything in case
10293 *) New function RSA_check_key and new openssl rsa option -check
10294 for verifying the consistency of RSA keys.
10295 [Ulf Moeller, Bodo Moeller]
10297 *) Various changes to make Win32 compile work:
10298 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
10299 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
10300 comparison" warnings.
10301 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
10304 *) Add a debugging option to PKCS#5 v2 key generation function: when
10305 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
10306 derived keys are printed to stderr.
10309 *) Copy the flags in ASN1_STRING_dup().
10310 [Roman E. Pavlov <pre@mo.msk.ru>]
10312 *) The x509 application mishandled signing requests containing DSA
10313 keys when the signing key was also DSA and the parameters didn't match.
10315 It was supposed to omit the parameters when they matched the signing key:
10316 the verifying software was then supposed to automatically use the CA's
10317 parameters if they were absent from the end user certificate.
10319 Omitting parameters is no longer recommended. The test was also
10320 the wrong way round! This was probably due to unusual behaviour in
10321 EVP_cmp_parameters() which returns 1 if the parameters match.
10322 This meant that parameters were omitted when they *didn't* match and
10323 the certificate was useless. Certificates signed with 'ca' didn't have
10325 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
10327 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
10328 The interface is as follows:
10329 Applications can use
10330 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
10331 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
10332 "off" is now the default.
10333 The library internally uses
10334 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
10335 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
10336 to disable memory-checking temporarily.
10338 Some inconsistent states that previously were possible (and were
10339 even the default) are now avoided.
10341 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
10342 with each memory chunk allocated; this is occasionally more helpful
10343 than just having a counter.
10345 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
10347 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
10351 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
10352 which largely parallels "options", but is for changing API behaviour,
10353 whereas "options" are about protocol behaviour.
10354 Initial "mode" flags are:
10356 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
10357 a single record has been written.
10358 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
10359 retries use the same buffer location.
10360 (But all of the contents must be
10364 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
10367 *) Fix problems with no-hmac etc.
10368 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
10370 *) New functions RSA_get_default_method(), RSA_set_method() and
10371 RSA_get_method(). These allows replacement of RSA_METHODs without having
10372 to mess around with the internals of an RSA structure.
10375 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
10376 Also really enable memory leak checks in openssl.c and in some
10378 [Chad C. Mulligan, Bodo Moeller]
10380 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
10381 up the length of negative integers. This has now been simplified to just
10382 store the length when it is first determined and use it later, rather
10383 than trying to keep track of where data is copied and updating it to
10385 [Steve Henson, reported by Brien Wheeler
10386 <bwheeler@authentica-security.com>]
10388 *) Add a new function PKCS7_signatureVerify. This allows the verification
10389 of a PKCS#7 signature but with the signing certificate passed to the
10390 function itself. This contrasts with PKCS7_dataVerify which assumes the
10391 certificate is present in the PKCS#7 structure. This isn't always the
10392 case: certificates can be omitted from a PKCS#7 structure and be
10393 distributed by "out of band" means (such as a certificate database).
10396 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
10397 function prototypes in pem.h, also change util/mkdef.pl to add the
10398 necessary function names.
10401 *) mk1mf.pl (used by Windows builds) did not properly read the
10402 options set by Configure in the top level Makefile, and Configure
10403 was not even able to write more than one option correctly.
10404 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
10407 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
10408 file to be loaded from a BIO or FILE pointer. The BIO version will
10409 for example allow memory BIOs to contain config info.
10412 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
10413 Whoever hopes to achieve shared-library compatibility across versions
10414 must use this, not the compile-time macro.
10415 (Exercise 0.9.4: Which is the minimum library version required by
10417 Note: All this applies only to multi-threaded programs, others don't
10421 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
10422 through a BIO pair triggered the default case, i.e.
10423 SSLerr(...,SSL_R_UNKNOWN_STATE).
10426 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
10427 can use the SSL library even if none of the specific BIOs is
10431 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
10432 for the encoded length.
10433 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
10435 *) Add initial documentation of the X509V3 functions.
10438 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
10439 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
10440 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
10441 secure PKCS#8 private key format with a high iteration count.
10444 *) Fix determination of Perl interpreter: A perl or perl5
10445 _directory_ in $PATH was also accepted as the interpreter.
10446 [Ralf S. Engelschall]
10448 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
10449 wrong with it but it was very old and did things like calling
10450 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
10451 unusual formatting.
10454 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
10455 to use the new extension code.
10458 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
10459 with macros. This should make it easier to change their form, add extra
10460 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
10464 *) Add to configuration table a new entry that can specify an alternative
10465 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
10466 according to Mark Crispin <MRC@Panda.COM>.
10470 *) DES CBC did not update the IV. Weird.
10473 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
10474 Changing the behaviour of the former might break existing programs --
10475 where IV updating is needed, des_ncbc_encrypt can be used.
10478 *) When bntest is run from "make test" it drives bc to check its
10479 calculations, as well as internally checking them. If an internal check
10480 fails, it needs to cause bc to give a non-zero result or make test carries
10481 on without noticing the failure. Fixed.
10484 *) DES library cleanups.
10487 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
10488 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
10489 ciphers. NOTE: although the key derivation function has been verified
10490 against some published test vectors it has not been extensively tested
10491 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
10495 *) Instead of "mkdir -p", which is not fully portable, use new
10496 Perl script "util/mkdir-p.pl".
10499 *) Rewrite the way password based encryption (PBE) is handled. It used to
10500 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
10501 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
10502 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
10503 the 'parameter' field of the AlgorithmIdentifier is passed to the
10504 underlying key generation function so it must do its own ASN1 parsing.
10505 This has also changed the EVP_PBE_CipherInit() function which now has a
10506 'parameter' argument instead of literal salt and iteration count values
10507 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
10510 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
10511 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
10512 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
10513 KEY" because this clashed with PKCS#8 unencrypted string. Since this
10514 value was just used as a "magic string" and not used directly its
10515 value doesn't matter.
10518 *) Introduce some semblance of const correctness to BN. Shame C doesn't
10522 *) "linux-sparc64" configuration (ultrapenguin).
10523 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
10524 "linux-sparc" configuration.
10525 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
10527 *) config now generates no-xxx options for missing ciphers.
10530 *) Support the EBCDIC character set (work in progress).
10531 File ebcdic.c not yet included because it has a different license.
10532 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
10534 *) Support BS2000/OSD-POSIX.
10535 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
10537 *) Make callbacks for key generation use void * instead of char *.
10540 *) Make S/MIME samples compile (not yet tested).
10543 *) Additional typesafe stacks.
10546 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
10550 Changes between 0.9.3 and 0.9.3a [29 May 1999]
10552 *) New configuration variant "sco5-gcc".
10554 *) Updated some demos.
10555 [Sean O Riordain, Wade Scholine]
10557 *) Add missing BIO_free at exit of pkcs12 application.
10560 *) Fix memory leak in conf.c.
10563 *) Updates for Win32 to assembler version of MD5.
10566 *) Set #! path to perl in apps/der_chop to where we found it
10567 instead of using a fixed path.
10570 *) SHA library changes for irix64-mips4-cc.
10573 *) Improvements for VMS support.
10577 Changes between 0.9.2b and 0.9.3 [24 May 1999]
10579 *) Bignum library bug fix. IRIX 6 passes "make test" now!
10580 This also avoids the problems with SC4.2 and unpatched SC5.
10581 [Andy Polyakov <appro@fy.chalmers.se>]
10583 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
10584 These are required because of the typesafe stack would otherwise break
10585 existing code. If old code used a structure member which used to be STACK
10586 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
10587 sk_num or sk_value it would produce an error because the num, data members
10588 are not present in STACK_OF. Now it just produces a warning. sk_set
10589 replaces the old method of assigning a value to sk_value
10590 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
10591 that does this will no longer work (and should use sk_set instead) but
10592 this could be regarded as a "questionable" behaviour anyway.
10595 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
10596 correctly handle encrypted S/MIME data.
10599 *) Change type of various DES function arguments from des_cblock
10600 (which means, in function argument declarations, pointer to char)
10601 to des_cblock * (meaning pointer to array with 8 char elements),
10602 which allows the compiler to do more typechecking; it was like
10603 that back in SSLeay, but with lots of ugly casts.
10605 Introduce new type const_des_cblock.
10608 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
10609 problems: find RecipientInfo structure that matches recipient certificate
10610 and initialise the ASN1 structures properly based on passed cipher.
10613 *) Belatedly make the BN tests actually check the results.
10616 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
10617 to and from BNs: it was completely broken. New compilation option
10618 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
10619 key elements as negative integers.
10622 *) Reorganize and speed up MD5.
10623 [Andy Polyakov <appro@fy.chalmers.se>]
10626 [Richard Levitte <richard@levitte.org>]
10628 *) New option -out to asn1parse to allow the parsed structure to be
10629 output to a file. This is most useful when combined with the -strparse
10630 option to examine the output of things like OCTET STRINGS.
10633 *) Make SSL library a little more fool-proof by not requiring any longer
10634 that SSL_set_{accept,connect}_state be called before
10635 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
10636 in many applications because usually everything *appeared* to work as
10637 intended anyway -- now it really works as intended).
10640 *) Move openssl.cnf out of lib/.
10643 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
10644 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
10645 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
10646 [Ralf S. Engelschall]
10648 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
10649 handle PKCS#7 enveloped data properly.
10650 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
10652 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
10653 copying pointers. The cert_st handling is changed by this in
10654 various ways (and thus what used to be known as ctx->default_cert
10655 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
10656 any longer when s->cert does not give us what we need).
10657 ssl_cert_instantiate becomes obsolete by this change.
10658 As soon as we've got the new code right (possibly it already is?),
10659 we have solved a couple of bugs of the earlier code where s->cert
10660 was used as if it could not have been shared with other SSL structures.
10662 Note that using the SSL API in certain dirty ways now will result
10663 in different behaviour than observed with earlier library versions:
10664 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
10665 does not influence s as it used to.
10667 In order to clean up things more thoroughly, inside SSL_SESSION
10668 we don't use CERT any longer, but a new structure SESS_CERT
10669 that holds per-session data (if available); currently, this is
10670 the peer's certificate chain and, for clients, the server's certificate
10671 and temporary key. CERT holds only those values that can have
10672 meaningful defaults in an SSL_CTX.
10675 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
10676 from the internal representation. Various PKCS#7 fixes: remove some
10677 evil casts and set the enc_dig_alg field properly based on the signing
10681 *) Allow PKCS#12 password to be set from the command line or the
10682 environment. Let 'ca' get its config file name from the environment
10683 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
10687 *) Allow certificate policies extension to use an IA5STRING for the
10688 organization field. This is contrary to the PKIX definition but
10689 VeriSign uses it and IE5 only recognises this form. Document 'x509'
10693 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
10694 without disallowing inline assembler and the like for non-pedantic builds.
10697 *) Support Borland C++ builder.
10698 [Janez Jere <jj@void.si>, modified by Ulf Möller]
10700 *) Support Mingw32.
10703 *) SHA-1 cleanups and performance enhancements.
10704 [Andy Polyakov <appro@fy.chalmers.se>]
10706 *) Sparc v8plus assembler for the bignum library.
10707 [Andy Polyakov <appro@fy.chalmers.se>]
10709 *) Accept any -xxx and +xxx compiler options in Configure.
10712 *) Update HPUX configuration.
10715 *) Add missing sk_<type>_unshift() function to safestack.h
10716 [Ralf S. Engelschall]
10718 *) New function SSL_CTX_use_certificate_chain_file that sets the
10719 "extra_cert"s in addition to the certificate. (This makes sense
10720 only for "PEM" format files, as chains as a whole are not
10724 *) Support verify_depth from the SSL API.
10725 x509_vfy.c had what can be considered an off-by-one-error:
10726 Its depth (which was not part of the external interface)
10727 was actually counting the number of certificates in a chain;
10728 now it really counts the depth.
10731 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
10732 instead of X509err, which often resulted in confusing error
10733 messages since the error codes are not globally unique
10734 (e.g. an alleged error in ssl3_accept when a certificate
10735 didn't match the private key).
10737 *) New function SSL_CTX_set_session_id_context that allows to set a default
10738 value (so that you don't need SSL_set_session_id_context for each
10739 connection using the SSL_CTX).
10742 *) OAEP decoding bug fix.
10745 *) Support INSTALL_PREFIX for package builders, as proposed by
10749 *) New Configure options "threads" and "no-threads". For systems
10750 where the proper compiler options are known (currently Solaris
10751 and Linux), "threads" is the default.
10754 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
10757 *) Install various scripts to $(OPENSSLDIR)/misc, not to
10758 $(INSTALLTOP)/bin -- they shouldn't clutter directories
10759 such as /usr/local/bin.
10762 *) "make linux-shared" to build shared libraries.
10763 [Niels Poppe <niels@netbox.org>]
10765 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
10768 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
10769 extension adding in x509 utility.
10772 *) Remove NOPROTO sections and error code comments.
10775 *) Partial rewrite of the DEF file generator to now parse the ANSI
10779 *) New Configure options --prefix=DIR and --openssldir=DIR.
10782 *) Complete rewrite of the error code script(s). It is all now handled
10783 by one script at the top level which handles error code gathering,
10784 header rewriting and C source file generation. It should be much better
10785 than the old method: it now uses a modified version of Ulf's parser to
10786 read the ANSI prototypes in all header files (thus the old K&R definitions
10787 aren't needed for error creation any more) and do a better job of
10788 translating function codes into names. The old 'ASN1 error code imbedded
10789 in a comment' is no longer necessary and it doesn't use .err files which
10790 have now been deleted. Also the error code call doesn't have to appear all
10791 on one line (which resulted in some large lines...).
10794 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
10797 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
10798 0 (which usually indicates a closed connection), but continue reading.
10801 *) Fix some race conditions.
10804 *) Add support for CRL distribution points extension. Add Certificate
10805 Policies and CRL distribution points documentation.
10808 *) Move the autogenerated header file parts to crypto/opensslconf.h.
10811 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
10812 8 of keying material. Merlin has also confirmed interop with this fix
10813 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
10814 [Merlin Hughes <merlin@baltimore.ie>]
10816 *) Fix lots of warnings.
10817 [Richard Levitte <levitte@stacken.kth.se>]
10819 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
10820 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
10821 [Richard Levitte <levitte@stacken.kth.se>]
10823 *) Fix problems with sizeof(long) == 8.
10824 [Andy Polyakov <appro@fy.chalmers.se>]
10826 *) Change functions to ANSI C.
10829 *) Fix typos in error codes.
10830 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
10832 *) Remove defunct assembler files from Configure.
10835 *) SPARC v8 assembler BIGNUM implementation.
10836 [Andy Polyakov <appro@fy.chalmers.se>]
10838 *) Support for Certificate Policies extension: both print and set.
10839 Various additions to support the r2i method this uses.
10842 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
10843 return a const string when you are expecting an allocated buffer.
10846 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
10847 types DirectoryString and DisplayText.
10850 *) Add code to allow r2i extensions to access the configuration database,
10851 add an LHASH database driver and add several ctx helper functions.
10854 *) Fix an evil bug in bn_expand2() which caused various BN functions to
10855 fail when they extended the size of a BIGNUM.
10858 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
10859 support typesafe stack.
10862 *) Fix typo in SSL_[gs]et_options().
10863 [Nils Frostberg <nils@medcom.se>]
10865 *) Delete various functions and files that belonged to the (now obsolete)
10866 old X509V3 handling code.
10869 *) New Configure option "rsaref".
10872 *) Don't auto-generate pem.h.
10875 *) Introduce type-safe ASN.1 SETs.
10878 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
10879 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
10881 *) Introduce type-safe STACKs. This will almost certainly break lots of code
10882 that links with OpenSSL (well at least cause lots of warnings), but fear
10883 not: the conversion is trivial, and it eliminates loads of evil casts. A
10884 few STACKed things have been converted already. Feel free to convert more.
10885 In the fullness of time, I'll do away with the STACK type altogether.
10888 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
10889 specified in <certfile> by updating the entry in the index.txt file.
10890 This way one no longer has to edit the index.txt file manually for
10891 revoking a certificate. The -revoke option does the gory details now.
10892 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
10894 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
10895 `-text' option at all and this way the `-noout -text' combination was
10896 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
10897 [Ralf S. Engelschall]
10899 *) Make sure a corresponding plain text error message exists for the
10900 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
10901 verify callback function determined that a certificate was revoked.
10902 [Ralf S. Engelschall]
10904 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
10905 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
10906 all available cipers including rc5, which was forgotten until now.
10907 In order to let the testing shell script know which algorithms
10908 are available, a new (up to now undocumented) command
10909 "openssl list-cipher-commands" is used.
10912 *) Bugfix: s_client occasionally would sleep in select() when
10913 it should have checked SSL_pending() first.
10916 *) New functions DSA_do_sign and DSA_do_verify to provide access to
10917 the raw DSA values prior to ASN.1 encoding.
10920 *) Tweaks to Configure
10921 [Niels Poppe <niels@netbox.org>]
10923 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
10927 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
10930 *) New config option to avoid instructions that are illegal on the 80386.
10931 The default code is faster, but requires at least a 486.
10934 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
10935 SSL2_SERVER_VERSION (not used at all) macros, which are now the
10936 same as SSL2_VERSION anyway.
10939 *) New "-showcerts" option for s_client.
10942 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
10943 application. Various cleanups and fixes.
10946 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
10947 modify error routines to work internally. Add error codes and PBE init
10948 to library startup routines.
10951 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
10952 packing functions to asn1 and evp. Changed function names and error
10953 codes along the way.
10956 *) PKCS12 integration: and so it begins... First of several patches to
10957 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
10958 objects to objects.h
10961 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
10962 and display support for Thawte strong extranet extension.
10965 *) Add LinuxPPC support.
10966 [Jeff Dubrule <igor@pobox.org>]
10968 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
10969 bn_div_words in alpha.s.
10970 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
10972 *) Make sure the RSA OAEP test is skipped under -DRSAref because
10973 OAEP isn't supported when OpenSSL is built with RSAref.
10974 [Ulf Moeller <ulf@fitug.de>]
10976 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
10977 so they no longer are missing under -DNOPROTO.
10978 [Soren S. Jorvang <soren@t.dk>]
10981 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
10983 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
10984 doesn't work when the session is reused. Coming soon!
10987 *) Fix a security hole, that allows sessions to be reused in the wrong
10988 context thus bypassing client cert protection! All software that uses
10989 client certs and session caches in multiple contexts NEEDS PATCHING to
10990 allow session reuse! A fuller solution is in the works.
10991 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
10993 *) Some more source tree cleanups (removed obsolete files
10994 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
10995 permission on "config" script to be executable) and a fix for the INSTALL
10997 [Ulf Moeller <ulf@fitug.de>]
10999 *) Remove some legacy and erroneous uses of malloc, free instead of
11001 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
11003 *) Make rsa_oaep_test return non-zero on error.
11004 [Ulf Moeller <ulf@fitug.de>]
11006 *) Add support for native Solaris shared libraries. Configure
11007 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
11008 if someone would make that last step automatic.
11009 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
11011 *) ctx_size was not built with the right compiler during "make links". Fixed.
11014 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
11015 except NULL ciphers". This means the default cipher list will no longer
11016 enable NULL ciphers. They need to be specifically enabled e.g. with
11017 the string "DEFAULT:eNULL".
11020 *) Fix to RSA private encryption routines: if p < q then it would
11021 occasionally produce an invalid result. This will only happen with
11022 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
11025 *) Be less restrictive and allow also `perl util/perlpath.pl
11026 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
11027 because this way one can also use an interpreter named `perl5' (which is
11028 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
11029 installed as `perl').
11030 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
11032 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
11033 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
11035 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
11036 advapi32.lib to Win32 build and change the pem test comparison
11037 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
11038 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
11039 and crypto/des/ede_cbcm_enc.c.
11042 *) DES quad checksum was broken on big-endian architectures. Fixed.
11045 *) Comment out two functions in bio.h that aren't implemented. Fix up the
11046 Win32 test batch file so it (might) work again. The Win32 test batch file
11047 is horrible: I feel ill....
11050 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
11051 in e_os.h. Audit of header files to check ANSI and non ANSI
11052 sections: 10 functions were absent from non ANSI section and not exported
11053 from Windows DLLs. Fixed up libeay.num for new functions.
11056 *) Make `openssl version' output lines consistent.
11057 [Ralf S. Engelschall]
11059 *) Fix Win32 symbol export lists for BIO functions: Added
11060 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
11061 to ms/libeay{16,32}.def.
11062 [Ralf S. Engelschall]
11064 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
11065 fine under Unix and passes some trivial tests I've now added. But the
11066 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
11067 added to make sure no one expects that this stuff really works in the
11068 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
11069 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
11071 [Ralf S. Engelschall]
11073 *) Fix the generation of two part addresses in perl.
11074 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
11076 *) Add config entry for Linux on MIPS.
11077 [John Tobey <jtobey@channel1.com>]
11079 *) Make links whenever Configure is run, unless we are on Windoze.
11082 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
11083 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
11087 *) Add a useful kludge to allow package maintainers to specify compiler and
11088 other platforms details on the command line without having to patch the
11089 Configure script everytime: One now can use ``perl Configure
11090 <id>:<details>'', i.e. platform ids are allowed to have details appended
11091 to them (separated by colons). This is treated as there would be a static
11092 pre-configured entry in Configure's %table under key <id> with value
11093 <details> and ``perl Configure <id>'' is called. So, when you want to
11094 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
11095 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
11096 now, which overrides the FreeBSD-elf entry on-the-fly.
11097 [Ralf S. Engelschall]
11099 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
11102 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
11103 on the `perl Configure ...' command line. This way one can compile
11104 OpenSSL libraries with Position Independent Code (PIC) which is needed
11105 for linking it into DSOs.
11106 [Ralf S. Engelschall]
11108 *) Remarkably, export ciphers were totally broken and no-one had noticed!
11112 *) Cleaned up the LICENSE document: The official contact for any license
11113 questions now is the OpenSSL core team under openssl-core@openssl.org.
11114 And add a paragraph about the dual-license situation to make sure people
11115 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
11116 to the OpenSSL toolkit.
11117 [Ralf S. Engelschall]
11119 *) General source tree makefile cleanups: Made `making xxx in yyy...'
11120 display consistent in the source tree and replaced `/bin/rm' by `rm'.
11121 Additionally cleaned up the `make links' target: Remove unnecessary
11122 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
11123 to speed processing and no longer clutter the display with confusing
11124 stuff. Instead only the actually done links are displayed.
11125 [Ralf S. Engelschall]
11127 *) Permit null encryption ciphersuites, used for authentication only. It used
11128 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
11129 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
11133 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
11134 signed attributes when verifying signatures (this would break them),
11135 the detached data encoding was wrong and public keys obtained using
11136 X509_get_pubkey() weren't freed.
11139 *) Add text documentation for the BUFFER functions. Also added a work around
11140 to a Win95 console bug. This was triggered by the password read stuff: the
11141 last character typed gets carried over to the next fread(). If you were
11142 generating a new cert request using 'req' for example then the last
11143 character of the passphrase would be CR which would then enter the first
11147 *) Added the new `Includes OpenSSL Cryptography Software' button as
11148 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
11149 button and can be used by applications based on OpenSSL to show the
11150 relationship to the OpenSSL project.
11151 [Ralf S. Engelschall]
11153 *) Remove confusing variables in function signatures in files
11154 ssl/ssl_lib.c and ssl/ssl.h.
11155 [Lennart Bong <lob@kulthea.stacken.kth.se>]
11157 *) Don't install bss_file.c under PREFIX/include/
11158 [Lennart Bong <lob@kulthea.stacken.kth.se>]
11160 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
11161 functions that return function pointers and has support for NT specific
11162 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
11163 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
11164 unsigned to signed types: this was killing the Win32 compile.
11167 *) Add new certificate file to stack functions,
11168 SSL_add_dir_cert_subjects_to_stack() and
11169 SSL_add_file_cert_subjects_to_stack(). These largely supplant
11170 SSL_load_client_CA_file(), and can be used to add multiple certs easily
11171 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
11172 This means that Apache-SSL and similar packages don't have to mess around
11173 to add as many CAs as they want to the preferred list.
11176 *) Experiment with doxygen documentation. Currently only partially applied to
11178 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
11179 openssl.doxy as the configuration file.
11182 *) Get rid of remaining C++-style comments which strict C compilers hate.
11183 [Ralf S. Engelschall, pointed out by Carlos Amengual]
11185 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
11186 compiled in by default: it has problems with large keys.
11189 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
11190 DH private keys and/or callback functions which directly correspond to
11191 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
11192 is needed for applications which have to configure certificates on a
11193 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
11195 For the RSA certificate situation is makes no difference, but
11196 for the DSA certificate situation this fixes the "no shared cipher"
11197 problem where the OpenSSL cipher selection procedure failed because the
11198 temporary keys were not overtaken from the context and the API provided
11199 no way to reconfigure them.
11200 The new functions now let applications reconfigure the stuff and they
11201 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
11202 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
11203 non-public-API function ssl_cert_instantiate() is used as a helper
11204 function and also to reduce code redundancy inside ssl_rsa.c.
11205 [Ralf S. Engelschall]
11207 *) Move s_server -dcert and -dkey options out of the undocumented feature
11208 area because they are useful for the DSA situation and should be
11209 recognized by the users.
11210 [Ralf S. Engelschall]
11212 *) Fix the cipher decision scheme for export ciphers: the export bits are
11213 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
11214 SSL_EXP_MASK. So, the original variable has to be used instead of the
11215 already masked variable.
11216 [Richard Levitte <levitte@stacken.kth.se>]
11218 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
11219 [Richard Levitte <levitte@stacken.kth.se>]
11221 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
11222 from `int' to `unsigned int' because it's a length and initialized by
11223 EVP_DigestFinal() which expects an `unsigned int *'.
11224 [Richard Levitte <levitte@stacken.kth.se>]
11226 *) Don't hard-code path to Perl interpreter on shebang line of Configure
11227 script. Instead use the usual Shell->Perl transition trick.
11228 [Ralf S. Engelschall]
11230 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
11231 (in addition to RSA certificates) to match the behaviour of `openssl dsa
11232 -noout -modulus' as it's already the case for `openssl rsa -noout
11233 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
11234 currently the public key is printed (a decision which was already done by
11235 `openssl dsa -modulus' in the past) which serves a similar purpose.
11236 Additionally the NO_RSA no longer completely removes the whole -modulus
11237 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
11239 [Ralf S. Engelschall]
11241 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
11242 BIO. See the source (crypto/evp/bio_ok.c) for more info.
11243 [Arne Ansper <arne@ats.cyber.ee>]
11245 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
11246 to be added. Now both 'req' and 'ca' can use new objects defined in the
11250 *) Add cool BIO that does syslog (or event log on NT).
11251 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
11253 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
11254 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
11255 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
11256 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
11259 *) Add preliminary config info for new extension code.
11262 *) Make RSA_NO_PADDING really use no padding.
11263 [Ulf Moeller <ulf@fitug.de>]
11265 *) Generate errors when private/public key check is done.
11268 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
11269 for some CRL extensions and new objects added.
11272 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
11273 key usage extension and fuller support for authority key id.
11276 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
11277 padding method for RSA, which is recommended for new applications in PKCS
11278 #1 v2.0 (RFC 2437, October 1998).
11279 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
11280 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
11281 against Bleichbacher's attack on RSA.
11282 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
11285 *) Updates to the new SSL compression code
11286 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
11288 *) Fix so that the version number in the master secret, when passed
11289 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
11290 (because the server will not accept higher), that the version number
11291 is 0x03,0x01, not 0x03,0x00
11292 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
11294 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
11295 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
11296 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
11299 *) Support for RAW extensions where an arbitrary extension can be
11300 created by including its DER encoding. See apps/openssl.cnf for
11304 *) Make sure latest Perl versions don't interpret some generated C array
11305 code as Perl array code in the crypto/err/err_genc.pl script.
11306 [Lars Weber <3weber@informatik.uni-hamburg.de>]
11308 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
11309 not many people have the assembler. Various Win32 compilation fixes and
11310 update to the INSTALL.W32 file with (hopefully) more accurate Win32
11311 build instructions.
11314 *) Modify configure script 'Configure' to automatically create crypto/date.h
11315 file under Win32 and also build pem.h from pem.org. New script
11316 util/mkfiles.pl to create the MINFO file on environments that can't do a
11317 'make files': perl util/mkfiles.pl >MINFO should work.
11320 *) Major rework of DES function declarations, in the pursuit of correctness
11321 and purity. As a result, many evil casts evaporated, and some weirdness,
11322 too. You may find this causes warnings in your code. Zapping your evil
11323 casts will probably fix them. Mostly.
11326 *) Fix for a typo in asn1.h. Bug fix to object creation script
11327 obj_dat.pl. It considered a zero in an object definition to mean
11328 "end of object": none of the objects in objects.h have any zeros
11329 so it wasn't spotted.
11330 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
11332 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
11333 Masking (CBCM). In the absence of test vectors, the best I have been able
11334 to do is check that the decrypt undoes the encrypt, so far. Send me test
11335 vectors if you have them.
11338 *) Correct calculation of key length for export ciphers (too much space was
11339 allocated for null ciphers). This has not been tested!
11342 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
11343 message is now correct (it understands "crypto" and "ssl" on its
11344 command line). There is also now an "update" option. This will update
11345 the util/ssleay.num and util/libeay.num files with any new functions.
11347 perl util/mkdef.pl crypto ssl update
11348 it will update them.
11351 *) Overhauled the Perl interface (perl/*):
11352 - ported BN stuff to OpenSSL's different BN library
11353 - made the perl/ source tree CVS-aware
11354 - renamed the package from SSLeay to OpenSSL (the files still contain
11355 their history because I've copied them in the repository)
11356 - removed obsolete files (the test scripts will be replaced
11357 by better Test::Harness variants in the future)
11358 [Ralf S. Engelschall]
11360 *) First cut for a very conservative source tree cleanup:
11361 1. merge various obsolete readme texts into doc/ssleay.txt
11362 where we collect the old documents and readme texts.
11363 2. remove the first part of files where I'm already sure that we no
11364 longer need them because of three reasons: either they are just temporary
11365 files which were left by Eric or they are preserved original files where
11366 I've verified that the diff is also available in the CVS via "cvs diff
11367 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
11368 the crypto/md/ stuff).
11369 [Ralf S. Engelschall]
11371 *) More extension code. Incomplete support for subject and issuer alt
11372 name, issuer and authority key id. Change the i2v function parameters
11373 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
11374 what that's for :-) Fix to ASN1 macro which messed up
11375 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
11378 *) Preliminary support for ENUMERATED type. This is largely copied from the
11382 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
11383 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
11385 *) Make sure `make rehash' target really finds the `openssl' program.
11386 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
11388 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
11389 like to hear about it if this slows down other processors.
11392 *) Add CygWin32 platform information to Configure script.
11393 [Alan Batie <batie@aahz.jf.intel.com>]
11395 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
11396 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
11398 *) New program nseq to manipulate netscape certificate sequences
11401 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
11405 *) Fixes to BN code. Previously the default was to define BN_RECURSION
11406 but the BN code had some problems that would cause failures when
11407 doing certificate verification and some other functions.
11408 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
11410 *) Add ASN1 and PEM code to support netscape certificate sequences.
11413 *) Add ASN1 and PEM code to support netscape certificate sequences.
11416 *) Add several PKIX and private extended key usage OIDs.
11419 *) Modify the 'ca' program to handle the new extension code. Modify
11420 openssl.cnf for new extension format, add comments.
11423 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
11424 and add a sample to openssl.cnf so req -x509 now adds appropriate
11428 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
11429 error code, add initial support to X509_print() and x509 application.
11432 *) Takes a deep breath and start adding X509 V3 extension support code. Add
11433 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
11434 stuff is currently isolated and isn't even compiled yet.
11437 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
11438 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
11439 Removed the versions check from X509 routines when loading extensions:
11440 this allows certain broken certificates that don't set the version
11441 properly to be processed.
11444 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
11445 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
11446 can still be regenerated with "make depend".
11449 *) Spelling mistake in C version of CAST-128.
11450 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
11452 *) Changes to the error generation code. The perl script err-code.pl
11453 now reads in the old error codes and retains the old numbers, only
11454 adding new ones if necessary. It also only changes the .err files if new
11455 codes are added. The makefiles have been modified to only insert errors
11456 when needed (to avoid needlessly modifying header files). This is done
11457 by only inserting errors if the .err file is newer than the auto generated
11458 C file. To rebuild all the error codes from scratch (the old behaviour)
11459 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
11460 or delete all the .err files.
11463 *) CAST-128 was incorrectly implemented for short keys. The C version has
11464 been fixed, but is untested. The assembler versions are also fixed, but
11465 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
11466 to regenerate it if needed.
11467 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
11468 Hagino <itojun@kame.net>]
11470 *) File was opened incorrectly in randfile.c.
11471 [Ulf Möller <ulf@fitug.de>]
11473 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
11474 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
11475 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
11476 al: it's just almost always a UTCTime. Note this patch adds new error
11477 codes so do a "make errors" if there are problems.
11480 *) Correct Linux 1 recognition in config.
11481 [Ulf Möller <ulf@fitug.de>]
11483 *) Remove pointless MD5 hash when using DSA keys in ca.
11484 [Anonymous <nobody@replay.com>]
11486 *) Generate an error if given an empty string as a cert directory. Also
11487 generate an error if handed NULL (previously returned 0 to indicate an
11488 error, but didn't set one).
11489 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
11491 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
11494 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
11495 parameters. This was causing a warning which killed off the Win32 compile.
11498 *) Remove C++ style comments from crypto/bn/bn_local.h.
11499 [Neil Costigan <neil.costigan@celocom.com>]
11501 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
11502 based on a text string, looking up short and long names and finally
11503 "dot" format. The "dot" format stuff didn't work. Added new function
11504 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
11505 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
11506 OID is not part of the table.
11509 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
11510 X509_LOOKUP_by_alias().
11513 *) Sort openssl functions by name.
11516 *) Get the gendsa program working (hopefully) and add it to app list. Remove
11517 encryption from sample DSA keys (in case anyone is interested the password
11521 *) Make _all_ *_free functions accept a NULL pointer.
11522 [Frans Heymans <fheymans@isaserver.be>]
11524 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
11526 [Anonymous <nobody@replay.com>]
11528 *) s_server should send the CAfile as acceptable CAs, not its own cert.
11529 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
11531 *) Don't blow it for numeric -newkey arguments to apps/req.
11532 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
11534 *) Temp key "for export" tests were wrong in s3_srvr.c.
11535 [Anonymous <nobody@replay.com>]
11537 *) Add prototype for temp key callback functions
11538 SSL_CTX_set_tmp_{rsa,dh}_callback().
11541 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
11542 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
11545 *) X509_name_add_entry() freed the wrong thing after an error.
11546 [Arne Ansper <arne@ats.cyber.ee>]
11548 *) rsa_eay.c would attempt to free a NULL context.
11549 [Arne Ansper <arne@ats.cyber.ee>]
11551 *) BIO_s_socket() had a broken should_retry() on Windoze.
11552 [Arne Ansper <arne@ats.cyber.ee>]
11554 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
11555 [Arne Ansper <arne@ats.cyber.ee>]
11557 *) Make sure the already existing X509_STORE->depth variable is initialized
11558 in X509_STORE_new(), but document the fact that this variable is still
11559 unused in the certificate verification process.
11560 [Ralf S. Engelschall]
11562 *) Fix the various library and apps files to free up pkeys obtained from
11563 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
11566 *) Fix reference counting in X509_PUBKEY_get(). This makes
11567 demos/maurice/example2.c work, amongst others, probably.
11568 [Steve Henson and Ben Laurie]
11570 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
11571 `openssl' and second, the shortcut symlinks for the `openssl <command>'
11572 are no longer created. This way we have a single and consistent command
11573 line interface `openssl <command>', similar to `cvs <command>'.
11574 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
11576 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
11577 BIT STRING wrapper always have zero unused bits.
11580 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
11583 *) Make the top-level INSTALL documentation easier to understand.
11586 *) Makefiles updated to exit if an error occurs in a sub-directory
11587 make (including if user presses ^C) [Paul Sutton]
11589 *) Make Montgomery context stuff explicit in RSA data structure.
11592 *) Fix build order of pem and err to allow for generated pem.h.
11595 *) Fix renumbering bug in X509_NAME_delete_entry().
11598 *) Enhanced the err-ins.pl script so it makes the error library number
11599 global and can add a library name. This is needed for external ASN1 and
11600 other error libraries.
11603 *) Fixed sk_insert which never worked properly.
11606 *) Fix ASN1 macros so they can handle indefinite length constructed
11607 EXPLICIT tags. Some non standard certificates use these: they can now
11611 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
11612 into a single doc/ssleay.txt bundle. This way the information is still
11613 preserved but no longer messes up this directory. Now it's new room for
11614 the new set of documentation files.
11615 [Ralf S. Engelschall]
11617 *) SETs were incorrectly DER encoded. This was a major pain, because they
11618 shared code with SEQUENCEs, which aren't coded the same. This means that
11619 almost everything to do with SETs or SEQUENCEs has either changed name or
11620 number of arguments.
11621 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
11623 *) Fix test data to work with the above.
11626 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
11627 was already fixed by Eric for 0.9.1 it seems.
11628 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
11630 *) Autodetect FreeBSD3.
11633 *) Fix various bugs in Configure. This affects the following platforms:
11637 unixware-2.0-pentium
11641 *) Eliminate generated files from CVS. Reorder tests to regenerate files
11642 before they are needed.
11645 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
11649 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
11651 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
11652 changed SSLeay to OpenSSL in version strings.
11653 [Ralf S. Engelschall]
11655 *) Some fixups to the top-level documents.
11658 *) Fixed the nasty bug where rsaref.h was not found under compile-time
11659 because the symlink to include/ was missing.
11660 [Ralf S. Engelschall]
11662 *) Incorporated the popular no-RSA/DSA-only patches
11663 which allow to compile a RSA-free SSLeay.
11664 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
11666 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
11667 when "ssleay" is still not found.
11668 [Ralf S. Engelschall]
11670 *) Added more platforms to Configure: Cray T3E, HPUX 11,
11671 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
11673 *) Updated the README file.
11674 [Ralf S. Engelschall]
11676 *) Added various .cvsignore files in the CVS repository subdirs
11677 to make a "cvs update" really silent.
11678 [Ralf S. Engelschall]
11680 *) Recompiled the error-definition header files and added
11681 missing symbols to the Win32 linker tables.
11682 [Ralf S. Engelschall]
11684 *) Cleaned up the top-level documents;
11685 o new files: CHANGES and LICENSE
11686 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
11687 o merged COPYRIGHT into LICENSE
11688 o removed obsolete TODO file
11689 o renamed MICROSOFT to INSTALL.W32
11690 [Ralf S. Engelschall]
11692 *) Removed dummy files from the 0.9.1b source tree:
11693 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
11694 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
11695 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
11696 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
11697 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
11698 [Ralf S. Engelschall]
11700 *) Added various platform portability fixes.
11703 *) The Genesis of the OpenSSL rpject:
11704 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
11705 Young and Tim J. Hudson created while they were working for C2Net until
11707 [The OpenSSL Project]
11710 Changes between 0.9.0b and 0.9.1b [not released]
11712 *) Updated a few CA certificates under certs/
11715 *) Changed some BIGNUM api stuff.
11718 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
11719 DGUX x86, Linux Alpha, etc.
11722 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
11723 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
11727 *) Add -strparse option to asn1pars program which parses nested
11729 [Dr Stephen Henson <shenson@bigfoot.com>]
11731 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
11734 *) DSA fix for "ca" program.
11737 *) Added "-genkey" option to "dsaparam" program.
11740 *) Added RIPE MD160 (rmd160) message digest.
11743 *) Added -a (all) option to "ssleay version" command.
11746 *) Added PLATFORM define which is the id given to Configure.
11749 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
11752 *) Extended the ASN.1 parser routines.
11755 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
11758 *) Added a BN_CTX to the BN library.
11761 *) Fixed the weak key values in DES library
11764 *) Changed API in EVP library for cipher aliases.
11767 *) Added support for RC2/64bit cipher.
11770 *) Converted the lhash library to the crypto/mem.c functions.
11773 *) Added more recognized ASN.1 object ids.
11776 *) Added more RSA padding checks for SSL/TLS.
11779 *) Added BIO proxy/filter functionality.
11782 *) Added extra_certs to SSL_CTX which can be used
11783 send extra CA certificates to the client in the CA cert chain sending
11784 process. It can be configured with SSL_CTX_add_extra_chain_cert().
11787 *) Now Fortezza is denied in the authentication phase because
11788 this is key exchange mechanism is not supported by SSLeay at all.
11791 *) Additional PKCS1 checks.
11794 *) Support the string "TLSv1" for all TLS v1 ciphers.
11797 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
11798 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
11801 *) Fixed a few memory leaks.
11804 *) Fixed various code and comment typos.
11807 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
11808 bytes sent in the client random.
11809 [Edward Bishop <ebishop@spyglass.com>]