5 Changes between 1.0.1 and 1.1.0 [xx XXX xxxx]
7 *) Add support for canonical generation of DSA parameter 'g'. See
10 *) Add support for HMAC DRBG from SP800-90. Update algorithm and POST
14 *) Add functions FIPS_module_version() and FIPS_module_version_text()
15 to return numberical and string versions of the FIPS module number.
18 *) Rename FIPS_mode_set and FIPS_mode to FIPS_module_mode_set and
19 FIPS_module_mode. FIPS_mode and FIPS_mode_set will be implmeneted
20 outside the validated module in the FIPS capable OpenSSL.
23 *) Minor change to DRBG entropy callback semantics. In some cases
24 there is no mutiple of the block length between min_len and
25 max_len. Allow the callback to return more than max_len bytes
26 of entropy but discard any extra: it is the callback's responsibility
27 to ensure that the extra data discarded does not impact the
28 requested amount of entropy.
31 *) Add PRNG security strength checks to RSA, DSA and ECDSA using
32 information in FIPS186-3, SP800-57 and SP800-131A.
35 *) CCM support via EVP. Interface is very similar to GCM case except we
36 must supply all data in one chunk (i.e. no update, final) and the
37 message length must be supplied if AAD is used. Add algorithm test
41 *) Initial version of POST overhaul. Add POST callback to allow the status
42 of POST to be monitored and/or failures induced. Modify fips_test_suite
43 to use callback. Always run all selftests even if one fails.
46 *) XTS support including algorithm test driver in the fips_gcmtest program.
47 Note: this does increase the maximum key length from 32 to 64 bytes but
48 there should be no binary compatibility issues as existing applications
49 will never use XTS mode.
52 *) Extensive reorganisation of FIPS PRNG behaviour. Remove all dependencies
53 to OpenSSL RAND code and replace with a tiny FIPS RAND API which also
54 performs algorithm blocking for unapproved PRNG types. Also do not
55 set PRNG type in FIPS_mode_set(): leave this to the application.
56 Add default OpenSSL DRBG handling: sets up FIPS PRNG and seeds with
57 the standard OpenSSL PRNG: set additional data to a date time vector.
60 *) Rename old X9.31 PRNG functions of the form FIPS_rand* to FIPS_x931*.
61 This shouldn't present any incompatibility problems because applications
62 shouldn't be using these directly and any that are will need to rethink
63 anyway as the X9.31 PRNG is now deprecated by FIPS 140-2
66 *) Extensive self tests and health checking required by SP800-90 DRBG.
67 Remove strength parameter from FIPS_drbg_instantiate and always
68 instantiate at maximum supported strength.
71 *) Add ECDH code to fips module and fips_ecdhvs for primitives only testing.
74 *) New algorithm test program fips_dhvs to handle DH primitives only testing.
77 *) New function DH_compute_key_padded() to compute a DH key and pad with
78 leading zeroes if needed: this complies with SP800-56A et al.
81 *) Initial implementation of SP800-90 DRBGs for Hash and CTR. Not used by
82 anything, incomplete, subject to change and largely untested at present.
85 *) Modify fipscanisteronly build option to only build the necessary object
86 files by filtering FIPS_EX_OBJ through a perl script in crypto/Makefile.
89 *) Add experimental option FIPSSYMS to give all symbols in
90 fipscanister.o and FIPS or fips prefix. This will avoid
91 conflicts with future versions of OpenSSL. Add perl script
92 util/fipsas.pl to preprocess assembly language source files
93 and rename any affected symbols.
96 *) Add selftest checks and algorithm block of non-fips algorithms in
97 FIPS mode. Remove DES2 from selftests.
100 *) Add ECDSA code to fips module. Add tiny fips_ecdsa_check to just
101 return internal method without any ENGINE dependencies. Add new
102 tiny fips sign and verify functions.
105 *) New build option no-ec2m to disable characteristic 2 code.
108 *) New build option "fipscanisteronly". This only builds fipscanister.o
109 and (currently) associated fips utilities. Uses the file Makefile.fips
110 instead of Makefile.org as the prototype.
113 *) Add some FIPS mode restrictions to GCM. Add internal IV generator.
114 Update fips_gcmtest to use IV generator.
117 *) Initial, experimental EVP support for AES-GCM. AAD can be input by
118 setting output buffer to NULL. The *Final function must be
119 called although it will not retrieve any additional data. The tag
120 can be set or retrieved with a ctrl. The IV length is by default 12
121 bytes (96 bits) but can be set to an alternative value. If the IV
122 length exceeds the maximum IV length (currently 16 bytes) it cannot be
126 *) New flag in ciphers: EVP_CIPH_FLAG_CUSTOM_CIPHER. This means the
127 underlying do_cipher function handles all cipher semantics itself
128 including padding and finalisation. This is useful if (for example)
129 an ENGINE cipher handles block padding itself. The behaviour of
130 do_cipher is subtly changed if this flag is set: the return value
131 is the number of characters written to the output buffer (zero is
132 no longer an error code) or a negative error code. Also if the
133 input buffer is NULL and length 0 finalisation should be performed.
136 *) If a candidate issuer certificate is already part of the constructed
137 path ignore it: new debug notification X509_V_ERR_PATH_LOOP for this case.
140 *) Improve forward-security support: add functions
142 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure))
143 void SSL_set_not_resumable_session_callback(SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure))
145 for use by SSL/TLS servers; the callback function will be called whenever a
146 new session is created, and gets to decide whether the session may be
147 cached to make it resumable (return 0) or not (return 1). (As by the
148 SSL/TLS protocol specifications, the session_id sent by the server will be
149 empty to indicate that the session is not resumable; also, the server will
150 not generate RFC 4507 (RFC 5077) session tickets.)
152 A simple reasonable callback implementation is to return is_forward_secure.
153 This parameter will be set to 1 or 0 depending on the ciphersuite selected
154 by the SSL/TLS server library, indicating whether it can provide forward
156 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
158 *) Add Next Protocol Negotiation,
159 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
160 disabled with a no-npn flag to config or Configure. Code donated
162 [Adam Langley <agl@google.com> and Ben Laurie]
164 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
165 all platforms. Move ssize_t definition from e_os.h to the public
166 header file e_os2.h as it now appears in public header file cms.h
169 *) New function OPENSSL_gmtime_diff to find the difference in days
170 and seconds between two tm structures. This will be used to provide
171 additional functionality for ASN1_TIME.
174 *) New -sigopt option to the ca, req and x509 utilities. Additional
175 signature parameters can be passed using this option and in
179 *) Add RSA PSS signing function. This will generate and set the
180 appropriate AlgorithmIdentifiers for PSS based on those in the
181 corresponding EVP_MD_CTX structure. No application support yet.
184 *) Support for companion algorithm specific ASN1 signing routines.
185 New function ASN1_item_sign_ctx() signs a pre-initialised
186 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
187 the appropriate parameters.
190 *) Add new algorithm specific ASN1 verification initialisation function
191 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
192 handling will be the same no matter what EVP_PKEY_METHOD is used.
193 Add a PSS handler to support verification of PSS signatures: checked
194 against a number of sample certificates.
197 *) Add signature printing for PSS. Add PSS OIDs.
198 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
200 *) Add algorithm specific signature printing. An individual ASN1 method
201 can now print out signatures instead of the standard hex dump.
203 More complex signatures (e.g. PSS) can print out more meaningful
204 information. Include DSA version that prints out the signature
208 *) Add -trusted_first option which attempts to find certificates in the
209 trusted store even if an untrusted chain is also supplied.
212 *) Initial experimental support for explicitly trusted non-root CAs.
213 OpenSSL still tries to build a complete chain to a root but if an
214 intermediate CA has a trust setting included that is used. The first
215 setting is used: whether to trust or reject.
218 *) New -verify_name option in command line utilities to set verification
222 *) Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE.
223 Add CMAC pkey methods.
226 *) Experiemental regnegotiation in s_server -www mode. If the client
227 browses /reneg connection is renegotiated. If /renegcert it is
228 renegotiated requesting a certificate.
231 *) Add an "external" session cache for debugging purposes to s_server. This
232 should help trace issues which normally are only apparent in deployed
233 multi-process servers.
236 *) Experiemental password based recipient info support for CMS library:
237 implementing RFC3211.
240 *) Split password based encryption into PBES2 and PBKDF2 functions. This
241 neatly separates the code into cipher and PBE sections and is required
242 for some algorithms that split PBES2 into separate pieces (such as
246 *) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where
247 return value is ignored. NB. The functions RAND_add(), RAND_seed(),
248 BIO_set_cipher() and some obscure PEM functions were changed so they
249 can now return an error. The RAND changes required a change to the
250 RAND_METHOD structure.
253 *) New macro __owur for "OpenSSL Warn Unused Result". This makes use of
254 a gcc attribute to warn if the result of a function is ignored. This
255 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h
256 whose return value is often ignored.
259 Changes between 1.0.0e and 1.0.1 [xx XXX xxxx]
261 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
263 This work was sponsored by Intel.
266 *) Add GCM support to TLS library. Some custom code is needed to split
267 the IV between the fixed (from PRF) and explicit (from TLS record)
268 portions. This adds all GCM ciphersuites supported by RFC5288 and
269 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
270 add a special AESGCM string for GCM only.
273 *) Expand range of ctrls for AES GCM. Permit setting invocation
274 field on decrypt and retrieval of invocation field only on encrypt.
277 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
278 As required by RFC5289 these ciphersuites cannot be used if for
279 versions of TLS earlier than 1.2.
282 *) For FIPS capable OpenSSL interpret a NULL default public key method
283 as unset and return the appopriate default but do *not* set the default.
284 This means we can return the appopriate method in applications that
285 swicth between FIPS and non-FIPS modes.
288 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
289 ENGINE is used then we cannot handle that in the FIPS module so we
290 keep original code iff non-FIPS operations are allowed.
293 *) Add -attime option to openssl verify.
294 [Peter Eckersley <pde@eff.org> and Ben Laurie]
296 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
299 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
300 FIPS EC methods unconditionally for now.
303 *) New build option no-ec2m to disable characteristic 2 code.
306 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
307 all cases can be covered as some introduce binary incompatibilities.
310 *) Redirect RSA operations to FIPS module including keygen,
311 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
314 *) Add similar low level API blocking to ciphers.
317 *) Low level digest APIs are not approved in FIPS mode: any attempt
318 to use these will cause a fatal error. Applications that *really* want
319 to use them can use the private_* version instead.
322 *) Redirect cipher operations to FIPS module for FIPS builds.
325 *) Redirect digest operations to FIPS module for FIPS builds.
328 *) Update build system to add "fips" flag which will link in fipscanister.o
329 for static and shared library builds embedding a signature if needed.
332 *) Output TLS supported curves in preference order instead of numerical
333 order. This is currently hardcoded for the highest order curves first.
334 This should be configurable so applications can judge speed vs strength.
337 *) Add TLS v1.2 server support for client authentication.
340 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
344 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
345 FIPS modules versions.
348 *) Add TLS v1.2 client side support for client authentication. Keep cache
349 of handshake records longer as we don't know the hash algorithm to use
350 until after the certificate request message is received.
353 *) Initial TLS v1.2 client support. Add a default signature algorithms
354 extension including all the algorithms we support. Parse new signature
355 format in client key exchange. Relax some ECC signing restrictions for
356 TLS v1.2 as indicated in RFC5246.
359 *) Add server support for TLS v1.2 signature algorithms extension. Switch
360 to new signature format when needed using client digest preference.
361 All server ciphersuites should now work correctly in TLS v1.2. No client
362 support yet and no support for client certificates.
365 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
366 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
367 ciphersuites. At present only RSA key exchange ciphersuites work with
368 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
369 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
370 and version checking.
373 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
374 with this defined it will not be affected by any changes to ssl internal
375 structures. Add several utility functions to allow openssl application
376 to work with OPENSSL_NO_SSL_INTERN defined.
380 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
382 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
385 *) Add EC_GFp_nistp224_method(), a 64-bit optimized implementation for
386 elliptic curve NIST-P224 with constant-time single point multiplication on
387 typical inputs. EC_GROUP_new_by_curve_name() will automatically use this
388 (while EC_GROUP_new_curve_GFp() currently won't and prefers the more
389 flexible implementations).
391 The implementation requires support for the nonstandard type __uint128_t,
392 and so is disabled by default. To include this in your build of OpenSSL,
393 use -DEC_NISTP224_64_GCC_128 on the Configure (or config) command line,
394 and run "make depend" (or "make update").
395 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
397 *) Permit abbreviated handshakes when renegotiating using the function
398 SSL_renegotiate_abbreviated().
399 [Robin Seggelmann <seggelmann@fh-muenster.de>]
401 *) Add call to ENGINE_register_all_complete() to
402 ENGINE_load_builtin_engines(), so some implementations get used
403 automatically instead of needing explicit application support.
406 *) Add support for TLS key exporter as described in RFC5705.
407 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
409 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
410 a few changes are required:
412 Add SSL_OP_NO_TLSv1_1 flag.
414 Update version checking logic to handle version 1.1.
415 Add explicit IV handling (ported from DTLS code).
416 Add command line options to s_client/s_server.
419 Changes between 1.0.0d and 1.0.0e [xx XXX xxxx]
421 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
422 signature public key algorithm by using OID xref utilities instead.
423 Before this you could only use some ECC ciphersuites with SHA1 only.
426 *) Add protection against ECDSA timing attacks as mentioned in the paper
427 by Billy Bob Brumley and Nicola Tuveri, see:
429 http://eprint.iacr.org/2011/232.pdf
431 [Billy Bob Brumley and Nicola Tuveri]
433 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
435 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
436 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
438 *) Fix bug in string printing code: if *any* escaping is enabled we must
439 escape the escape character (backslash) or the resulting string is
443 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
445 *) Disable code workaround for ancient and obsolete Netscape browsers
446 and servers: an attacker can use it in a ciphersuite downgrade attack.
447 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
450 *) Fixed J-PAKE implementation error, originally discovered by
451 Sebastien Martini, further info and confirmation from Stefan
452 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
455 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
457 *) Fix extension code to avoid race conditions which can result in a buffer
458 overrun vulnerability: resumed sessions must not be modified as they can
459 be shared by multiple threads. CVE-2010-3864
462 *) Fix WIN32 build system to correctly link an ENGINE directory into
466 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
468 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
470 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
472 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
474 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
475 context. The operation can be customised via the ctrl mechanism in
476 case ENGINEs want to include additional functionality.
479 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
482 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
483 output hashes compatible with older versions of OpenSSL.
484 [Willy Weisz <weisz@vcpc.univie.ac.at>]
486 *) Fix compression algorithm handling: if resuming a session use the
487 compression algorithm of the resumed session instead of determining
488 it from client hello again. Don't allow server to change algorithm.
491 *) Add load_crls() function to apps tidying load_certs() too. Add option
492 to verify utility to allow additional CRLs to be included.
495 *) Update OCSP request code to permit adding custom headers to the request:
496 some responders need this.
499 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
501 [Julia Lawall <julia@diku.dk>]
503 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
504 needlessly dereferenced structures, used obsolete functions and
505 didn't handle all updated verify codes correctly.
508 *) Disable MD2 in the default configuration.
511 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
512 indicate the initial BIO being pushed or popped. This makes it possible
513 to determine whether the BIO is the one explicitly called or as a result
514 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
515 it handles reference counts correctly and doesn't zero out the I/O bio
516 when it is not being explicitly popped. WARNING: applications which
517 included workarounds for the old buggy behaviour will need to be modified
518 or they could free up already freed BIOs.
521 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
522 renaming to all platforms (within the 0.9.8 branch, this was
523 done conditionally on Netware platforms to avoid a name clash).
524 [Guenter <lists@gknw.net>]
526 *) Add ECDHE and PSK support to DTLS.
527 [Michael Tuexen <tuexen@fh-muenster.de>]
529 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
533 *) Add "missing" function EVP_MD_flags() (without this the only way to
534 retrieve a digest flags is by accessing the structure directly. Update
535 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
536 or cipher is registered as in the "from" argument. Print out all
537 registered digests in the dgst usage message instead of manually
538 attempting to work them out.
541 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
542 this allows the use of compression and extensions. Change default cipher
543 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
544 by default unless an application cipher string requests it.
547 *) Alter match criteria in PKCS12_parse(). It used to try to use local
548 key ids to find matching certificates and keys but some PKCS#12 files
549 don't follow the (somewhat unwritten) rules and this strategy fails.
550 Now just gather all certificates together and the first private key
551 then look for the first certificate that matches the key.
554 *) Support use of registered digest and cipher names for dgst and cipher
555 commands instead of having to add each one as a special case. So now
562 openssl dgst -sha256 foo
564 and this works for ENGINE based algorithms too.
568 *) Update Gost ENGINE to support parameter files.
569 [Victor B. Wagner <vitus@cryptocom.ru>]
571 *) Support GeneralizedTime in ca utility.
572 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
574 *) Enhance the hash format used for certificate directory links. The new
575 form uses the canonical encoding (meaning equivalent names will work
576 even if they aren't identical) and uses SHA1 instead of MD5. This form
577 is incompatible with the older format and as a result c_rehash should
578 be used to rebuild symbolic links.
581 *) Make PKCS#8 the default write format for private keys, replacing the
582 traditional format. This form is standardised, more secure and doesn't
583 include an implicit MD5 dependency.
586 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
587 committed to OpenSSL should pass this lot as a minimum.
590 *) Add session ticket override functionality for use by EAP-FAST.
591 [Jouni Malinen <j@w1.fi>]
593 *) Modify HMAC functions to return a value. Since these can be implemented
594 in an ENGINE errors can occur.
597 *) Type-checked OBJ_bsearch_ex.
600 *) Type-checked OBJ_bsearch. Also some constification necessitated
601 by type-checking. Still to come: TXT_DB, bsearch(?),
602 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
606 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
607 seconds to a tm structure directly, instead of going through OS
608 specific date routines. This avoids any issues with OS routines such
609 as the year 2038 bug. New *_adj() functions for ASN1 time structures
610 and X509_time_adj_ex() to cover the extended range. The existing
611 X509_time_adj() is still usable and will no longer have any date issues.
614 *) Delta CRL support. New use deltas option which will attempt to locate
615 and search any appropriate delta CRLs available.
617 This work was sponsored by Google.
620 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
621 code and add additional score elements. Validate alternate CRL paths
622 as part of the CRL checking and indicate a new error "CRL path validation
623 error" in this case. Applications wanting additional details can use
624 the verify callback and check the new "parent" field. If this is not
625 NULL CRL path validation is taking place. Existing applications wont
626 see this because it requires extended CRL support which is off by
629 This work was sponsored by Google.
632 *) Support for freshest CRL extension.
634 This work was sponsored by Google.
637 *) Initial indirect CRL support. Currently only supported in the CRLs
638 passed directly and not via lookup. Process certificate issuer
639 CRL entry extension and lookup CRL entries by bother issuer name
640 and serial number. Check and process CRL issuer entry in IDP extension.
642 This work was sponsored by Google.
645 *) Add support for distinct certificate and CRL paths. The CRL issuer
646 certificate is validated separately in this case. Only enabled if
647 an extended CRL support flag is set: this flag will enable additional
648 CRL functionality in future.
650 This work was sponsored by Google.
653 *) Add support for policy mappings extension.
655 This work was sponsored by Google.
658 *) Fixes to pathlength constraint, self issued certificate handling,
659 policy processing to align with RFC3280 and PKITS tests.
661 This work was sponsored by Google.
664 *) Support for name constraints certificate extension. DN, email, DNS
665 and URI types are currently supported.
667 This work was sponsored by Google.
670 *) To cater for systems that provide a pointer-based thread ID rather
671 than numeric, deprecate the current numeric thread ID mechanism and
672 replace it with a structure and associated callback type. This
673 mechanism allows a numeric "hash" to be extracted from a thread ID in
674 either case, and on platforms where pointers are larger than 'long',
675 mixing is done to help ensure the numeric 'hash' is usable even if it
676 can't be guaranteed unique. The default mechanism is to use "&errno"
677 as a pointer-based thread ID to distinguish between threads.
679 Applications that want to provide their own thread IDs should now use
680 CRYPTO_THREADID_set_callback() to register a callback that will call
681 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
683 Note that ERR_remove_state() is now deprecated, because it is tied
684 to the assumption that thread IDs are numeric. ERR_remove_state(0)
685 to free the current thread's error state should be replaced by
686 ERR_remove_thread_state(NULL).
688 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
689 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
690 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
691 application was previously providing a numeric thread callback that
692 was inappropriate for distinguishing threads, then uniqueness might
693 have been obtained with &errno that happened immediately in the
694 intermediate development versions of OpenSSL; this is no longer the
695 case, the numeric thread callback will now override the automatic use
697 [Geoff Thorpe, with help from Bodo Moeller]
699 *) Initial support for different CRL issuing certificates. This covers a
700 simple case where the self issued certificates in the chain exist and
701 the real CRL issuer is higher in the existing chain.
703 This work was sponsored by Google.
706 *) Removed effectively defunct crypto/store from the build.
709 *) Revamp of STACK to provide stronger type-checking. Still to come:
710 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
711 ASN1_STRING, CONF_VALUE.
714 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
715 RAM on SSL connections. This option can save about 34k per idle SSL.
718 *) Revamp of LHASH to provide stronger type-checking. Still to come:
719 STACK, TXT_DB, bsearch, qsort.
722 *) Initial support for Cryptographic Message Syntax (aka CMS) based
723 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
724 support for data, signedData, compressedData, digestedData and
725 encryptedData, envelopedData types included. Scripts to check against
726 RFC4134 examples draft and interop and consistency checks of many
727 content types and variants.
730 *) Add options to enc utility to support use of zlib compression BIO.
733 *) Extend mk1mf to support importing of options and assembly language
734 files from Configure script, currently only included in VC-WIN32.
735 The assembly language rules can now optionally generate the source
736 files from the associated perl scripts.
739 *) Implement remaining functionality needed to support GOST ciphersuites.
740 Interop testing has been performed using CryptoPro implementations.
741 [Victor B. Wagner <vitus@cryptocom.ru>]
743 *) s390x assembler pack.
746 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
750 *) Implement Opaque PRF Input TLS extension as specified in
751 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
752 official specification yet and no extension type assignment by
753 IANA exists, this extension (for now) will have to be explicitly
754 enabled when building OpenSSL by providing the extension number
755 to use. For example, specify an option
757 -DTLSEXT_TYPE_opaque_prf_input=0x9527
759 to the "config" or "Configure" script to enable the extension,
760 assuming extension number 0x9527 (which is a completely arbitrary
761 and unofficial assignment based on the MD5 hash of the Internet
762 Draft). Note that by doing so, you potentially lose
763 interoperability with other TLS implementations since these might
764 be using the same extension number for other purposes.
766 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
767 opaque PRF input value to use in the handshake. This will create
768 an interal copy of the length-'len' string at 'src', and will
769 return non-zero for success.
771 To get more control and flexibility, provide a callback function
774 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
775 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
779 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
782 Callback function 'cb' will be called in handshakes, and is
783 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
784 Argument 'arg' is for application purposes (the value as given to
785 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
786 be provided to the callback function). The callback function
787 has to return non-zero to report success: usually 1 to use opaque
788 PRF input just if possible, or 2 to enforce use of the opaque PRF
789 input. In the latter case, the library will abort the handshake
790 if opaque PRF input is not successfully negotiated.
792 Arguments 'peerinput' and 'len' given to the callback function
793 will always be NULL and 0 in the case of a client. A server will
794 see the client's opaque PRF input through these variables if
795 available (NULL and 0 otherwise). Note that if the server
796 provides an opaque PRF input, the length must be the same as the
797 length of the client's opaque PRF input.
799 Note that the callback function will only be called when creating
800 a new session (session resumption can resume whatever was
801 previously negotiated), and will not be called in SSL 2.0
802 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
803 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
804 for applications that need to enforce opaque PRF input.
808 *) Update ssl code to support digests other than SHA1+MD5 for handshake
811 [Victor B. Wagner <vitus@cryptocom.ru>]
813 *) Add RFC4507 support to OpenSSL. This includes the corrections in
814 RFC4507bis. The encrypted ticket format is an encrypted encoded
815 SSL_SESSION structure, that way new session features are automatically
818 If a client application caches session in an SSL_SESSION structure
819 support is transparent because tickets are now stored in the encoded
822 The SSL_CTX structure automatically generates keys for ticket
823 protection in servers so again support should be possible
824 with no application modification.
826 If a client or server wishes to disable RFC4507 support then the option
827 SSL_OP_NO_TICKET can be set.
829 Add a TLS extension debugging callback to allow the contents of any client
830 or server extensions to be examined.
832 This work was sponsored by Google.
835 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
836 OpenSSL should now compile cleanly on gcc 4.2
837 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
839 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
840 support including streaming MAC support: this is required for GOST
842 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
844 *) Add option -stream to use PKCS#7 streaming in smime utility. New
845 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
846 to output in BER and PEM format.
849 *) Experimental support for use of HMAC via EVP_PKEY interface. This
850 allows HMAC to be handled via the EVP_DigestSign*() interface. The
851 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
852 ENGINE support for HMAC keys which are unextractable. New -mac and
853 -macopt options to dgst utility.
856 *) New option -sigopt to dgst utility. Update dgst to use
857 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
858 alternative signing paramaters such as X9.31 or PSS in the dgst
862 *) Change ssl_cipher_apply_rule(), the internal function that does
863 the work each time a ciphersuite string requests enabling
864 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
865 removing ("!foo+bar") a class of ciphersuites: Now it maintains
866 the order of disabled ciphersuites such that those ciphersuites
867 that most recently went from enabled to disabled not only stay
868 in order with respect to each other, but also have higher priority
869 than other disabled ciphersuites the next time ciphersuites are
872 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
873 the same ciphersuites as with "HIGH" alone, but in a specific
874 order where the PSK ciphersuites come first (since they are the
875 most recently disabled ciphersuites when "HIGH" is parsed).
877 Also, change ssl_create_cipher_list() (using this new
878 funcionality) such that between otherwise identical
879 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
883 *) Change ssl_create_cipher_list() so that it automatically
884 arranges the ciphersuites in reasonable order before starting
885 to process the rule string. Thus, the definition for "DEFAULT"
886 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
887 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
888 This makes it much easier to arrive at a reasonable default order
889 in applications for which anonymous ciphers are OK (meaning
890 that you can't actually use DEFAULT).
891 [Bodo Moeller; suggested by Victor Duchovni]
893 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
894 processing) into multiple integers instead of setting
895 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
896 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
897 (These masks as well as the individual bit definitions are hidden
898 away into the non-exported interface ssl/ssl_locl.h, so this
899 change to the definition of the SSL_CIPHER structure shouldn't
900 affect applications.) This give us more bits for each of these
901 categories, so there is no longer a need to coagulate AES128 and
902 AES256 into a single algorithm bit, and to coagulate Camellia128
903 and Camellia256 into a single algorithm bit, which has led to all
906 Thus, among other things, the kludge introduced in 0.9.7m and
907 0.9.8e for masking out AES256 independently of AES128 or masking
908 out Camellia256 independently of AES256 is not needed here in 0.9.9.
910 With the change, we also introduce new ciphersuite aliases that
911 so far were missing: "AES128", "AES256", "CAMELLIA128", and
915 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
916 Use the leftmost N bytes of the signature input if the input is
917 larger than the prime q (with N being the size in bytes of q).
920 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
921 it yet and it is largely untested.
924 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
927 *) Initial incomplete changes to avoid need for function casts in OpenSSL
928 some compilers (gcc 4.2 and later) reject their use. Safestack is
929 reimplemented. Update ASN1 to avoid use of legacy functions.
932 *) Win32/64 targets are linked with Winsock2.
935 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
936 to external functions. This can be used to increase CRL handling
937 efficiency especially when CRLs are very large by (for example) storing
938 the CRL revoked certificates in a database.
941 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
942 new CRLs added to a directory can be used. New command line option
943 -verify_return_error to s_client and s_server. This causes real errors
944 to be returned by the verify callback instead of carrying on no matter
945 what. This reflects the way a "real world" verify callback would behave.
948 *) GOST engine, supporting several GOST algorithms and public key formats.
949 Kindly donated by Cryptocom.
952 *) Partial support for Issuing Distribution Point CRL extension. CRLs
953 partitioned by DP are handled but no indirect CRL or reason partitioning
954 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
955 selected via a scoring technique which handles IDP and AKID in CRLs.
958 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
959 will ultimately be used for all verify operations: this will remove the
960 X509_STORE dependency on certificate verification and allow alternative
961 lookup methods. X509_STORE based implementations of these two callbacks.
964 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
965 Modify get_crl() to find a valid (unexpired) CRL if possible.
968 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
969 this would be called X509_CRL_cmp() but that name is already used by
970 a function that just compares CRL issuer names. Cache several CRL
971 extensions in X509_CRL structure and cache CRLDP in X509.
974 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
975 this maps equivalent X509_NAME structures into a consistent structure.
976 Name comparison can then be performed rapidly using memcmp().
979 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
983 *) Allow digests to supply their own micalg string for S/MIME type using
984 the ctrl EVP_MD_CTRL_MICALG.
987 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
988 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
989 ctrl. It can then customise the structure before and/or after signing
993 *) New function OBJ_add_sigid() to allow application defined signature OIDs
994 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
995 to free up any added signature OIDs.
998 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
999 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
1000 digest and cipher tables. New options added to openssl utility:
1001 list-message-digest-algorithms and list-cipher-algorithms.
1004 *) Change the array representation of binary polynomials: the list
1005 of degrees of non-zero coefficients is now terminated with -1.
1006 Previously it was terminated with 0, which was also part of the
1007 value; thus, the array representation was not applicable to
1008 polynomials where t^0 has coefficient zero. This change makes
1009 the array representation useful in a more general context.
1012 *) Various modifications and fixes to SSL/TLS cipher string
1013 handling. For ECC, the code now distinguishes between fixed ECDH
1014 with RSA certificates on the one hand and with ECDSA certificates
1015 on the other hand, since these are separate ciphersuites. The
1016 unused code for Fortezza ciphersuites has been removed.
1018 For consistency with EDH, ephemeral ECDH is now called "EECDH"
1019 (not "ECDHE"). For consistency with the code for DH
1020 certificates, use of ECDH certificates is now considered ECDH
1021 authentication, not RSA or ECDSA authentication (the latter is
1022 merely the CA's signing algorithm and not actively used in the
1025 The temporary ciphersuite alias "ECCdraft" is no longer
1026 available, and ECC ciphersuites are no longer excluded from "ALL"
1027 and "DEFAULT". The following aliases now exist for RFC 4492
1028 ciphersuites, most of these by analogy with the DH case:
1030 kECDHr - ECDH cert, signed with RSA
1031 kECDHe - ECDH cert, signed with ECDSA
1032 kECDH - ECDH cert (signed with either RSA or ECDSA)
1033 kEECDH - ephemeral ECDH
1034 ECDH - ECDH cert or ephemeral ECDH
1040 AECDH - anonymous ECDH
1041 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
1045 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
1046 Use correct micalg parameters depending on digest(s) in signed message.
1049 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
1050 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
1053 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
1054 an engine to register a method. Add ENGINE lookups for methods and
1055 functional reference processing.
1058 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
1059 EVP_{Sign,Verify}* which allow an application to customise the signature
1063 *) New -resign option to smime utility. This adds one or more signers
1064 to an existing PKCS#7 signedData structure. Also -md option to use an
1065 alternative message digest algorithm for signing.
1068 *) Tidy up PKCS#7 routines and add new functions to make it easier to
1069 create PKCS7 structures containing multiple signers. Update smime
1070 application to support multiple signers.
1073 *) New -macalg option to pkcs12 utility to allow setting of an alternative
1077 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
1078 Reorganize PBE internals to lookup from a static table using NIDs,
1079 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
1080 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
1081 PRF which will be automatically used with PBES2.
1084 *) Replace the algorithm specific calls to generate keys in "req" with the
1088 *) Update PKCS#7 enveloped data routines to use new API. This is now
1089 supported by any public key method supporting the encrypt operation. A
1090 ctrl is added to allow the public key algorithm to examine or modify
1091 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
1095 *) Add a ctrl to asn1 method to allow a public key algorithm to express
1096 a default digest type to use. In most cases this will be SHA1 but some
1097 algorithms (such as GOST) need to specify an alternative digest. The
1098 return value indicates how strong the prefernce is 1 means optional and
1099 2 is mandatory (that is it is the only supported type). Modify
1100 ASN1_item_sign() to accept a NULL digest argument to indicate it should
1101 use the default md. Update openssl utilities to use the default digest
1102 type for signing if it is not explicitly indicated.
1105 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
1106 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
1107 signing method from the key type. This effectively removes the link
1108 between digests and public key types.
1111 *) Add an OID cross reference table and utility functions. Its purpose is to
1112 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1113 rsaEncryption. This will allow some of the algorithm specific hackery
1114 needed to use the correct OID to be removed.
1117 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1118 structures for PKCS7_sign(). They are now set up by the relevant public
1122 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1125 *) Add support for key derivation (agreement) in the API, DH method and
1129 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1130 public and private key formats. As a side effect these add additional
1131 command line functionality not previously available: DSA signatures can be
1132 generated and verified using pkeyutl and DH key support and generation in
1137 [Oliver Tappe <zooey@hirschkaefer.de>]
1139 *) New make target "install_html_docs" installs HTML renditions of the
1141 [Oliver Tappe <zooey@hirschkaefer.de>]
1143 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1144 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1145 support key and parameter generation and add initial key generation
1146 functionality for RSA.
1149 *) Add functions for main EVP_PKEY_method operations. The undocumented
1150 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1151 EVP_PKEY_{encrypt,decrypt}_old.
1154 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1155 key API, doesn't do much yet.
1158 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1159 public key algorithms. New option to openssl utility:
1160 "list-public-key-algorithms" to print out info.
1163 *) Implement the Supported Elliptic Curves Extension for
1164 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1167 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1168 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1171 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1172 utilities such as rsa, dsa, dsaparam etc except they process any key
1176 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1177 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1178 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1182 *) Initial support for pluggable public key ASN1.
1183 De-spaghettify the public key ASN1 handling. Move public and private
1184 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1185 algorithm specific handling to a single module within the relevant
1186 algorithm directory. Add functions to allow (near) opaque processing
1187 of public and private key structures.
1190 *) Implement the Supported Point Formats Extension for
1191 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1194 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1195 for the psk identity [hint] and the psk callback functions to the
1196 SSL_SESSION, SSL and SSL_CTX structure.
1199 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1203 SSL_CTX_use_psk_identity_hint
1204 SSL_get_psk_identity_hint
1205 SSL_get_psk_identity
1206 SSL_use_psk_identity_hint
1208 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1210 *) Add RFC 3161 compliant time stamp request creation, response generation
1211 and response verification functionality.
1212 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1214 *) Add initial support for TLS extensions, specifically for the server_name
1215 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1216 have new members for a host name. The SSL data structure has an
1217 additional member SSL_CTX *initial_ctx so that new sessions can be
1218 stored in that context to allow for session resumption, even after the
1219 SSL has been switched to a new SSL_CTX in reaction to a client's
1220 server_name extension.
1222 New functions (subject to change):
1224 SSL_get_servername()
1225 SSL_get_servername_type()
1228 New CTRL codes and macros (subject to change):
1230 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1231 - SSL_CTX_set_tlsext_servername_callback()
1232 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1233 - SSL_CTX_set_tlsext_servername_arg()
1234 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1236 openssl s_client has a new '-servername ...' option.
1238 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1239 '-key2 ...', '-servername_fatal' (subject to change). This allows
1240 testing the HostName extension for a specific single host name ('-cert'
1241 and '-key' remain fallbacks for handshakes without HostName
1242 negotiation). If the unrecogninzed_name alert has to be sent, this by
1243 default is a warning; it becomes fatal with the '-servername_fatal'
1246 [Peter Sylvester, Remy Allais, Christophe Renou]
1248 *) Whirlpool hash implementation is added.
1251 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1252 bn(64,32). Because of instruction set limitations it doesn't have
1253 any negative impact on performance. This was done mostly in order
1254 to make it possible to share assembler modules, such as bn_mul_mont
1255 implementations, between 32- and 64-bit builds without hassle.
1258 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1259 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1263 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1264 dedicated Montgomery multiplication procedure, is introduced.
1265 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1266 "64-bit" performance on certain 32-bit targets.
1269 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1270 in SSL structures. New SSL ctrl to set maximum send fragment size.
1271 Save memory by seeting the I/O buffer sizes dynamically instead of
1272 using the maximum available value.
1275 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1276 in addition to the text details.
1279 *) Very, very preliminary EXPERIMENTAL support for printing of general
1280 ASN1 structures. This currently produces rather ugly output and doesn't
1281 handle several customised structures at all.
1284 *) Integrated support for PVK file format and some related formats such
1285 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1286 these in the 'rsa' and 'dsa' utilities.
1289 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1292 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1293 place for the (very old) "NETSCAPE" format certificates which are now
1294 handled using new ASN1 code equivalents.
1297 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1298 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1299 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1302 *) Modify CRL distribution points extension code to print out previously
1303 unsupported fields. Enhance extension setting code to allow setting of
1307 *) Add print and set support for Issuing Distribution Point CRL extension.
1310 *) Change 'Configure' script to enable Camellia by default.
1313 Changes between 0.9.8r and 0.9.8s [xx XXX xxxx]
1315 *) Add protection against ECDSA timing attacks as mentioned in the paper
1316 by Billy Bob Brumley and Nicola Tuveri, see:
1318 http://eprint.iacr.org/2011/232.pdf
1320 [Billy Bob Brumley and Nicola Tuveri]
1322 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1324 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1325 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1327 *) Fix bug in string printing code: if *any* escaping is enabled we must
1328 escape the escape character (backslash) or the resulting string is
1332 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1334 *) Disable code workaround for ancient and obsolete Netscape browsers
1335 and servers: an attacker can use it in a ciphersuite downgrade attack.
1336 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1339 *) Fixed J-PAKE implementation error, originally discovered by
1340 Sebastien Martini, further info and confirmation from Stefan
1341 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1344 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1346 *) Fix extension code to avoid race conditions which can result in a buffer
1347 overrun vulnerability: resumed sessions must not be modified as they can
1348 be shared by multiple threads. CVE-2010-3864
1351 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1354 *) Don't reencode certificate when calculating signature: cache and use
1355 the original encoding instead. This makes signature verification of
1356 some broken encodings work correctly.
1359 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1360 is also one of the inputs.
1361 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1363 *) Don't repeatedly append PBE algorithms to table if they already exist.
1364 Sort table on each new add. This effectively makes the table read only
1365 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1369 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1371 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1374 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1375 access or freeing data twice (CVE-2010-0742)
1376 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1378 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1379 common in certificates and some applications which only call
1380 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1384 Reduce copying into .apps and .test in makevms.com
1385 Don't try to use blank CA certificate in CA.com
1386 Allow use of C files from original directories in maketests.com
1387 [Steven M. Schweda" <sms@antinode.info>]
1389 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1391 *) When rejecting SSL/TLS records due to an incorrect version number, never
1392 update s->server with a new major version number. As of
1393 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1394 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1395 the previous behavior could result in a read attempt at NULL when
1396 receiving specific incorrect SSL/TLS records once record payload
1397 protection is active. (CVE-2010-0740)
1398 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1400 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1401 could be crashed if the relevant tables were not present (e.g. chrooted).
1402 [Tomas Hoger <thoger@redhat.com>]
1404 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1406 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1407 [Martin Olsson, Neel Mehta]
1409 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1410 accommodate for stack sorting, always a write lock!).
1413 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1414 excessive delays in the RAND_poll(): over a minute. As a workaround
1415 include a time check in the inner Heap32Next loop too.
1418 *) The code that handled flushing of data in SSL/TLS originally used the
1419 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1420 the problem outlined in PR#1949. The fix suggested there however can
1421 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1422 of Apache). So instead simplify the code to flush unconditionally.
1423 This should be fine since flushing with no data to flush is a no op.
1426 *) Handle TLS versions 2.0 and later properly and correctly use the
1427 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1428 off ancient servers have a habit of sticking around for a while...
1431 *) Modify compression code so it frees up structures without using the
1432 ex_data callbacks. This works around a problem where some applications
1433 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1434 restarting) then use compression (e.g. SSL with compression) later.
1435 This results in significant per-connection memory leaks and
1436 has caused some security issues including CVE-2008-1678 and
1440 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1441 change when encrypting or decrypting.
1444 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1445 connect and renegotiate with servers which do not support RI.
1446 Until RI is more widely deployed this option is enabled by default.
1449 *) Add "missing" ssl ctrls to clear options and mode.
1452 *) If client attempts to renegotiate and doesn't support RI respond with
1453 a no_renegotiation alert as required by RFC5746. Some renegotiating
1454 TLS clients will continue a connection gracefully when they receive
1455 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1456 waiting for a server hello which it will never receive. Now we treat a
1457 received no_renegotiation alert as a fatal error. This is because
1458 applications requesting a renegotiation might well expect it to succeed
1459 and would have no code in place to handle the server denying it so the
1460 only safe thing to do is to terminate the connection.
1463 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1464 peer supports secure renegotiation and 0 otherwise. Print out peer
1465 renegotiation support in s_client/s_server.
1468 *) Replace the highly broken and deprecated SPKAC certification method with
1469 the updated NID creation version. This should correctly handle UTF8.
1472 *) Implement RFC5746. Re-enable renegotiation but require the extension
1473 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1474 turns out to be a bad idea. It has been replaced by
1475 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1476 SSL_CTX_set_options(). This is really not recommended unless you
1477 know what you are doing.
1478 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1480 *) Fixes to stateless session resumption handling. Use initial_ctx when
1481 issuing and attempting to decrypt tickets in case it has changed during
1482 servername handling. Use a non-zero length session ID when attempting
1483 stateless session resumption: this makes it possible to determine if
1484 a resumption has occurred immediately after receiving server hello
1485 (several places in OpenSSL subtly assume this) instead of later in
1489 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1490 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1491 fixes for a few places where the return code is not checked
1493 [Julia Lawall <julia@diku.dk>]
1495 *) Add --strict-warnings option to Configure script to include devteam
1496 warnings in other configurations.
1499 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1500 makes it possible to install openssl libraries in locations which
1501 have names other than "lib", for example "/usr/lib64" which some
1503 [Steve Henson, based on patch from Jeremy Utley]
1505 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1506 X690 8.9.12 and can produce some misleading textual output of OIDs.
1507 [Steve Henson, reported by Dan Kaminsky]
1509 *) Delete MD2 from algorithm tables. This follows the recommendation in
1510 several standards that it is not used in new applications due to
1511 several cryptographic weaknesses. For binary compatibility reasons
1512 the MD2 API is still compiled in by default.
1515 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1519 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1520 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1522 [Guenter <lists@gknw.net>]
1524 *) Fix the server certificate chain building code to use X509_verify_cert(),
1525 it used to have an ad-hoc builder which was unable to cope with anything
1526 other than a simple chain.
1527 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1529 *) Don't check self signed certificate signatures in X509_verify_cert()
1530 by default (a flag can override this): it just wastes time without
1531 adding any security. As a useful side effect self signed root CAs
1532 with non-FIPS digests are now usable in FIPS mode.
1535 *) In dtls1_process_out_of_seq_message() the check if the current message
1536 is already buffered was missing. For every new message was memory
1537 allocated, allowing an attacker to perform an denial of service attack
1538 with sending out of seq handshake messages until there is no memory
1539 left. Additionally every future messege was buffered, even if the
1540 sequence number made no sense and would be part of another handshake.
1541 So only messages with sequence numbers less than 10 in advance will be
1542 buffered. (CVE-2009-1378)
1543 [Robin Seggelmann, discovered by Daniel Mentz]
1545 *) Records are buffered if they arrive with a future epoch to be
1546 processed after finishing the corresponding handshake. There is
1547 currently no limitation to this buffer allowing an attacker to perform
1548 a DOS attack with sending records with future epochs until there is no
1549 memory left. This patch adds the pqueue_size() function to detemine
1550 the size of a buffer and limits the record buffer to 100 entries.
1552 [Robin Seggelmann, discovered by Daniel Mentz]
1554 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1555 parent structure is freed. (CVE-2009-1379)
1558 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1559 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1562 [Ilya O. <vrghost@gmail.com>]
1564 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1566 *) Disable renegotiation completely - this fixes a severe security
1567 problem (CVE-2009-3555) at the cost of breaking all
1568 renegotiation. Renegotiation can be re-enabled by setting
1569 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1570 run-time. This is really not recommended unless you know what
1574 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1576 *) Don't set val to NULL when freeing up structures, it is freed up by
1577 underlying code. If sizeof(void *) > sizeof(long) this can result in
1578 zeroing past the valid field. (CVE-2009-0789)
1579 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1581 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1582 checked correctly. This would allow some invalid signed attributes to
1583 appear to verify correctly. (CVE-2009-0591)
1584 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1586 *) Reject UniversalString and BMPString types with invalid lengths. This
1587 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1588 a legal length. (CVE-2009-0590)
1591 *) Set S/MIME signing as the default purpose rather than setting it
1592 unconditionally. This allows applications to override it at the store
1596 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1597 to handle some structures.
1600 *) Improve efficiency of mem_gets: don't search whole buffer each time
1602 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1604 *) New -hex option for openssl rand.
1607 *) Print out UTF8String and NumericString when parsing ASN1.
1610 *) Support NumericString type for name components.
1613 *) Allow CC in the environment to override the automatically chosen
1614 compiler. Note that nothing is done to ensure flags work with the
1618 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1620 *) Properly check EVP_VerifyFinal() and similar return values
1622 [Ben Laurie, Bodo Moeller, Google Security Team]
1624 *) Enable TLS extensions by default.
1627 *) Allow the CHIL engine to be loaded, whether the application is
1628 multithreaded or not. (This does not release the developer from the
1629 obligation to set up the dynamic locking callbacks.)
1630 [Sander Temme <sander@temme.net>]
1632 *) Use correct exit code if there is an error in dgst command.
1633 [Steve Henson; problem pointed out by Roland Dirlewanger]
1635 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1636 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1639 *) Add experimental JPAKE support, including demo authentication in
1640 s_client and s_server.
1643 *) Set the comparison function in v3_addr_canonize().
1644 [Rob Austein <sra@hactrn.net>]
1646 *) Add support for XMPP STARTTLS in s_client.
1647 [Philip Paeps <philip@freebsd.org>]
1649 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1650 to ensure that even with this option, only ciphersuites in the
1651 server's preference list will be accepted. (Note that the option
1652 applies only when resuming a session, so the earlier behavior was
1653 just about the algorithm choice for symmetric cryptography.)
1656 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1658 *) Fix NULL pointer dereference if a DTLS server received
1659 ChangeCipherSpec as first record (CVE-2009-1386).
1662 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1663 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1666 *) The fix in 0.9.8c that supposedly got rid of unsafe
1667 double-checked locking was incomplete for RSA blinding,
1668 addressing just one layer of what turns out to have been
1669 doubly unsafe triple-checked locking.
1671 So now fix this for real by retiring the MONT_HELPER macro
1672 in crypto/rsa/rsa_eay.c.
1674 [Bodo Moeller; problem pointed out by Marius Schilder]
1676 *) Various precautionary measures:
1678 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1680 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1681 (NB: This would require knowledge of the secret session ticket key
1682 to exploit, in which case you'd be SOL either way.)
1684 - Change bn_nist.c so that it will properly handle input BIGNUMs
1685 outside the expected range.
1687 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1690 [Neel Mehta, Bodo Moeller]
1692 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1693 the load fails. Useful for distros.
1694 [Ben Laurie and the FreeBSD team]
1696 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1699 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1702 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1704 This work was sponsored by Logica.
1707 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1708 keystores. Support for SSL/TLS client authentication too.
1709 Not compiled unless enable-capieng specified to Configure.
1711 This work was sponsored by Logica.
1714 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1715 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1716 attribute creation routines such as certifcate requests and PKCS#12
1720 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1722 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1723 handshake which could lead to a cilent crash as found using the
1724 Codenomicon TLS test suite (CVE-2008-1672)
1725 [Steve Henson, Mark Cox]
1727 *) Fix double free in TLS server name extensions which could lead to
1728 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1731 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1733 Clear the error queue to ensure that error entries left from
1734 older function calls do not interfere with the correct operation.
1735 [Lutz Jaenicke, Erik de Castro Lopo]
1737 *) Remove root CA certificates of commercial CAs:
1739 The OpenSSL project does not recommend any specific CA and does not
1740 have any policy with respect to including or excluding any CA.
1741 Therefore it does not make any sense to ship an arbitrary selection
1742 of root CA certificates with the OpenSSL software.
1745 *) RSA OAEP patches to fix two separate invalid memory reads.
1746 The first one involves inputs when 'lzero' is greater than
1747 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1748 before the beginning of from). The second one involves inputs where
1749 the 'db' section contains nothing but zeroes (there is a one-byte
1750 invalid read after the end of 'db').
1751 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1753 *) Partial backport from 0.9.9-dev:
1755 Introduce bn_mul_mont (dedicated Montgomery multiplication
1756 procedure) as a candidate for BIGNUM assembler implementation.
1757 While 0.9.9-dev uses assembler for various architectures, only
1758 x86_64 is available by default here in the 0.9.8 branch, and
1759 32-bit x86 is available through a compile-time setting.
1761 To try the 32-bit x86 assembler implementation, use Configure
1762 option "enable-montasm" (which exists only for this backport).
1764 As "enable-montasm" for 32-bit x86 disclaims code stability
1765 anyway, in this constellation we activate additional code
1766 backported from 0.9.9-dev for further performance improvements,
1767 namely BN_from_montgomery_word. (To enable this otherwise,
1768 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1770 [Andy Polyakov (backport partially by Bodo Moeller)]
1772 *) Add TLS session ticket callback. This allows an application to set
1773 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1774 values. This is useful for key rollover for example where several key
1775 sets may exist with different names.
1778 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1779 This was broken until now in 0.9.8 releases, such that the only way
1780 a registered ENGINE could be used (assuming it initialises
1781 successfully on the host) was to explicitly set it as the default
1782 for the relevant algorithms. This is in contradiction with 0.9.7
1783 behaviour and the documentation. With this fix, when an ENGINE is
1784 registered into a given algorithm's table of implementations, the
1785 'uptodate' flag is reset so that auto-discovery will be used next
1786 time a new context for that algorithm attempts to select an
1788 [Ian Lister (tweaked by Geoff Thorpe)]
1790 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1791 implemention in the following ways:
1793 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1796 Lack of BER streaming support means one pass streaming processing is
1797 only supported if data is detached: setting the streaming flag is
1798 ignored for embedded content.
1800 CMS support is disabled by default and must be explicitly enabled
1801 with the enable-cms configuration option.
1804 *) Update the GMP engine glue to do direct copies between BIGNUM and
1805 mpz_t when openssl and GMP use the same limb size. Otherwise the
1806 existing "conversion via a text string export" trick is still used.
1807 [Paul Sheer <paulsheer@gmail.com>]
1809 *) Zlib compression BIO. This is a filter BIO which compressed and
1810 uncompresses any data passed through it.
1813 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1814 RFC3394 compatible AES key wrapping.
1817 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1818 sets string data without copying. X509_ALGOR_set0() and
1819 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1820 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1821 from an X509_ATTRIBUTE structure optionally checking it occurs only
1822 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1826 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1827 to get the expected BN_FLG_CONSTTIME behavior.
1828 [Bodo Moeller (Google)]
1832 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1833 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1834 - added some more tests to do_tests.pl
1835 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1836 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1837 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1838 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1839 - various changes to netware.pl to enable gcc-cross builds on Win32
1841 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1842 - various changes to fix missing prototype warnings
1843 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1844 - added AES, WHIRLPOOL and CPUID assembler code to build files
1845 - added missing AES assembler make rules to mk1mf.pl
1846 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1847 [Guenter Knauf <eflash@gmx.net>]
1849 *) Implement certificate status request TLS extension defined in RFC3546.
1850 A client can set the appropriate parameters and receive the encoded
1851 OCSP response via a callback. A server can query the supplied parameters
1852 and set the encoded OCSP response in the callback. Add simplified examples
1853 to s_client and s_server.
1856 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1858 *) Fix various bugs:
1859 + Binary incompatibility of ssl_ctx_st structure
1860 + DTLS interoperation with non-compliant servers
1861 + Don't call get_session_cb() without proposed session
1862 + Fix ia64 assembler code
1863 [Andy Polyakov, Steve Henson]
1865 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1867 *) DTLS Handshake overhaul. There were longstanding issues with
1868 OpenSSL DTLS implementation, which were making it impossible for
1869 RFC 4347 compliant client to communicate with OpenSSL server.
1870 Unfortunately just fixing these incompatibilities would "cut off"
1871 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1872 server keeps tolerating non RFC compliant syntax. The opposite is
1873 not true, 0.9.8f client can not communicate with earlier server.
1874 This update even addresses CVE-2007-4995.
1877 *) Changes to avoid need for function casts in OpenSSL: some compilers
1878 (gcc 4.2 and later) reject their use.
1879 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1882 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1883 RFC4507bis. The encrypted ticket format is an encrypted encoded
1884 SSL_SESSION structure, that way new session features are automatically
1887 If a client application caches session in an SSL_SESSION structure
1888 support is transparent because tickets are now stored in the encoded
1891 The SSL_CTX structure automatically generates keys for ticket
1892 protection in servers so again support should be possible
1893 with no application modification.
1895 If a client or server wishes to disable RFC4507 support then the option
1896 SSL_OP_NO_TICKET can be set.
1898 Add a TLS extension debugging callback to allow the contents of any client
1899 or server extensions to be examined.
1901 This work was sponsored by Google.
1904 *) Add initial support for TLS extensions, specifically for the server_name
1905 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1906 have new members for a host name. The SSL data structure has an
1907 additional member SSL_CTX *initial_ctx so that new sessions can be
1908 stored in that context to allow for session resumption, even after the
1909 SSL has been switched to a new SSL_CTX in reaction to a client's
1910 server_name extension.
1912 New functions (subject to change):
1914 SSL_get_servername()
1915 SSL_get_servername_type()
1918 New CTRL codes and macros (subject to change):
1920 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1921 - SSL_CTX_set_tlsext_servername_callback()
1922 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1923 - SSL_CTX_set_tlsext_servername_arg()
1924 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1926 openssl s_client has a new '-servername ...' option.
1928 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1929 '-key2 ...', '-servername_fatal' (subject to change). This allows
1930 testing the HostName extension for a specific single host name ('-cert'
1931 and '-key' remain fallbacks for handshakes without HostName
1932 negotiation). If the unrecogninzed_name alert has to be sent, this by
1933 default is a warning; it becomes fatal with the '-servername_fatal'
1936 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1938 *) Add AES and SSE2 assembly language support to VC++ build.
1941 *) Mitigate attack on final subtraction in Montgomery reduction.
1944 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1945 (which previously caused an internal error).
1948 *) Squeeze another 10% out of IGE mode when in != out.
1951 *) AES IGE mode speedup.
1952 [Dean Gaudet (Google)]
1954 *) Add the Korean symmetric 128-bit cipher SEED (see
1955 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1956 add SEED ciphersuites from RFC 4162:
1958 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1959 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1960 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1961 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1963 To minimize changes between patchlevels in the OpenSSL 0.9.8
1964 series, SEED remains excluded from compilation unless OpenSSL
1965 is configured with 'enable-seed'.
1966 [KISA, Bodo Moeller]
1968 *) Mitigate branch prediction attacks, which can be practical if a
1969 single processor is shared, allowing a spy process to extract
1970 information. For detailed background information, see
1971 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1972 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1973 and Necessary Software Countermeasures"). The core of the change
1974 are new versions BN_div_no_branch() and
1975 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1976 respectively, which are slower, but avoid the security-relevant
1977 conditional branches. These are automatically called by BN_div()
1978 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1979 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1980 remove a conditional branch.
1982 BN_FLG_CONSTTIME is the new name for the previous
1983 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1984 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1985 in the exponent causes BN_mod_exp_mont() to use the alternative
1986 implementation in BN_mod_exp_mont_consttime().) The old name
1987 remains as a deprecated alias.
1989 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1990 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1991 constant-time implementations for more than just exponentiation.
1992 Here too the old name is kept as a deprecated alias.
1994 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1995 the BN_BLINDING structure gets an independent copy of the
1996 modulus. This means that the previous "BIGNUM *m" argument to
1997 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1998 essentially becomes "const BIGNUM *m", although we can't actually
1999 change this in the header file before 0.9.9. It allows
2000 RSA_setup_blinding() to use BN_with_flags() on the modulus to
2001 enable BN_FLG_CONSTTIME.
2003 [Matthew D Wood (Intel Corp)]
2005 *) In the SSL/TLS server implementation, be strict about session ID
2006 context matching (which matters if an application uses a single
2007 external cache for different purposes). Previously,
2008 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2009 set. This did ensure strict client verification, but meant that,
2010 with applications using a single external cache for quite
2011 different requirements, clients could circumvent ciphersuite
2012 restrictions for a given session ID context by starting a session
2013 in a different context.
2016 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2017 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2018 authentication-only ciphersuites.
2021 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
2022 not complete and could lead to a possible single byte overflow
2023 (CVE-2007-5135) [Ben Laurie]
2025 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
2027 *) Since AES128 and AES256 (and similarly Camellia128 and
2028 Camellia256) share a single mask bit in the logic of
2029 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2030 kludge to work properly if AES128 is available and AES256 isn't
2031 (or if Camellia128 is available and Camellia256 isn't).
2034 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
2035 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
2036 When a point or a seed is encoded in a BIT STRING, we need to
2037 prevent the removal of trailing zero bits to get the proper DER
2038 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
2039 of a NamedBitList, for which trailing 0 bits need to be removed.)
2042 *) Have SSL/TLS server implementation tolerate "mismatched" record
2043 protocol version while receiving ClientHello even if the
2044 ClientHello is fragmented. (The server can't insist on the
2045 particular protocol version it has chosen before the ServerHello
2046 message has informed the client about his choice.)
2049 *) Add RFC 3779 support.
2050 [Rob Austein for ARIN, Ben Laurie]
2052 *) Load error codes if they are not already present instead of using a
2053 static variable. This allows them to be cleanly unloaded and reloaded.
2054 Improve header file function name parsing.
2057 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
2058 or CAPABILITY handshake as required by RFCs.
2061 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
2063 *) Introduce limits to prevent malicious keys being able to
2064 cause a denial of service. (CVE-2006-2940)
2065 [Steve Henson, Bodo Moeller]
2067 *) Fix ASN.1 parsing of certain invalid structures that can result
2068 in a denial of service. (CVE-2006-2937) [Steve Henson]
2070 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2071 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2073 *) Fix SSL client code which could crash if connecting to a
2074 malicious SSLv2 server. (CVE-2006-4343)
2075 [Tavis Ormandy and Will Drewry, Google Security Team]
2077 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
2078 match only those. Before that, "AES256-SHA" would be interpreted
2079 as a pattern and match "AES128-SHA" too (since AES128-SHA got
2080 the same strength classification in 0.9.7h) as we currently only
2081 have a single AES bit in the ciphersuite description bitmap.
2082 That change, however, also applied to ciphersuite strings such as
2083 "RC4-MD5" that intentionally matched multiple ciphersuites --
2084 namely, SSL 2.0 ciphersuites in addition to the more common ones
2085 from SSL 3.0/TLS 1.0.
2087 So we change the selection algorithm again: Naming an explicit
2088 ciphersuite selects this one ciphersuite, and any other similar
2089 ciphersuite (same bitmap) from *other* protocol versions.
2090 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2091 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
2093 Since SSL 2.0 does not have any ciphersuites for which the
2094 128/256 bit distinction would be relevant, this works for now.
2095 The proper fix will be to use different bits for AES128 and
2096 AES256, which would have avoided the problems from the beginning;
2097 however, bits are scarce, so we can only do this in a new release
2098 (not just a patchlevel) when we can change the SSL_CIPHER
2099 definition to split the single 'unsigned long mask' bitmap into
2100 multiple values to extend the available space.
2104 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2106 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2107 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2109 *) Add AES IGE and biIGE modes.
2112 *) Change the Unix randomness entropy gathering to use poll() when
2113 possible instead of select(), since the latter has some
2114 undesirable limitations.
2115 [Darryl Miles via Richard Levitte and Bodo Moeller]
2117 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2118 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2119 cannot be implicitly activated as part of, e.g., the "AES" alias.
2120 However, please upgrade to OpenSSL 0.9.9[-dev] for
2121 non-experimental use of the ECC ciphersuites to get TLS extension
2122 support, which is required for curve and point format negotiation
2123 to avoid potential handshake problems.
2126 *) Disable rogue ciphersuites:
2128 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2129 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2130 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2132 The latter two were purportedly from
2133 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2136 Also deactivate the remaining ciphersuites from
2137 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2138 unofficial, and the ID has long expired.
2141 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2142 dual-core machines) and other potential thread-safety issues.
2145 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2146 versions), which is now available for royalty-free use
2147 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2148 Also, add Camellia TLS ciphersuites from RFC 4132.
2150 To minimize changes between patchlevels in the OpenSSL 0.9.8
2151 series, Camellia remains excluded from compilation unless OpenSSL
2152 is configured with 'enable-camellia'.
2155 *) Disable the padding bug check when compression is in use. The padding
2156 bug check assumes the first packet is of even length, this is not
2157 necessarily true if compresssion is enabled and can result in false
2158 positives causing handshake failure. The actual bug test is ancient
2159 code so it is hoped that implementations will either have fixed it by
2160 now or any which still have the bug do not support compression.
2163 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2165 *) When applying a cipher rule check to see if string match is an explicit
2166 cipher suite and only match that one cipher suite if it is.
2169 *) Link in manifests for VC++ if needed.
2170 [Austin Ziegler <halostatue@gmail.com>]
2172 *) Update support for ECC-based TLS ciphersuites according to
2173 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2174 TLS extensions, which are supported starting with the 0.9.9
2175 branch, not in the OpenSSL 0.9.8 branch).
2178 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2179 opaque EVP_CIPHER_CTX handling.
2182 *) Fixes and enhancements to zlib compression code. We now only use
2183 "zlib1.dll" and use the default __cdecl calling convention on Win32
2184 to conform with the standards mentioned here:
2185 http://www.zlib.net/DLL_FAQ.txt
2186 Static zlib linking now works on Windows and the new --with-zlib-include
2187 --with-zlib-lib options to Configure can be used to supply the location
2188 of the headers and library. Gracefully handle case where zlib library
2192 *) Several fixes and enhancements to the OID generation code. The old code
2193 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2194 handle numbers larger than ULONG_MAX, truncated printing and had a
2195 non standard OBJ_obj2txt() behaviour.
2198 *) Add support for building of engines under engine/ as shared libraries
2199 under VC++ build system.
2202 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2203 Hopefully, we will not see any false combination of paths any more.
2206 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2208 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2209 (part of SSL_OP_ALL). This option used to disable the
2210 countermeasure against man-in-the-middle protocol-version
2211 rollback in the SSL 2.0 server implementation, which is a bad
2212 idea. (CVE-2005-2969)
2214 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2215 for Information Security, National Institute of Advanced Industrial
2216 Science and Technology [AIST], Japan)]
2218 *) Add two function to clear and return the verify parameter flags.
2221 *) Keep cipherlists sorted in the source instead of sorting them at
2222 runtime, thus removing the need for a lock.
2225 *) Avoid some small subgroup attacks in Diffie-Hellman.
2226 [Nick Mathewson and Ben Laurie]
2228 *) Add functions for well-known primes.
2231 *) Extended Windows CE support.
2232 [Satoshi Nakamura and Andy Polyakov]
2234 *) Initialize SSL_METHOD structures at compile time instead of during
2235 runtime, thus removing the need for a lock.
2238 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2239 attempting to decrypt each encrypted key in turn. Add support to
2243 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2245 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2248 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2251 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2252 key into the same file any more.
2255 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2258 *) Add -utf8 command line and config file option to 'ca'.
2259 [Stefan <stf@udoma.org]
2261 *) Removed the macro des_crypt(), as it seems to conflict with some
2262 libraries. Use DES_crypt().
2265 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2266 involves renaming the source and generated shared-libs for
2267 both. The engines will accept the corrected or legacy ids
2268 ('ncipher' and '4758_cca' respectively) when binding. NB,
2269 this only applies when building 'shared'.
2270 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2272 *) Add attribute functions to EVP_PKEY structure. Modify
2273 PKCS12_create() to recognize a CSP name attribute and
2274 use it. Make -CSP option work again in pkcs12 utility.
2277 *) Add new functionality to the bn blinding code:
2278 - automatic re-creation of the BN_BLINDING parameters after
2279 a fixed number of uses (currently 32)
2280 - add new function for parameter creation
2281 - introduce flags to control the update behaviour of the
2282 BN_BLINDING parameters
2283 - hide BN_BLINDING structure
2284 Add a second BN_BLINDING slot to the RSA structure to improve
2285 performance when a single RSA object is shared among several
2289 *) Add support for DTLS.
2290 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2292 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2293 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2296 *) Remove buggy and incompletet DH cert support from
2297 ssl/ssl_rsa.c and ssl/s3_both.c
2300 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2301 the apps/openssl applications.
2304 *) Compile clean with "-Wall -Wmissing-prototypes
2305 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2306 DEBUG_SAFESTACK must also be set.
2309 *) Change ./Configure so that certain algorithms can be disabled by default.
2310 The new counterpiece to "no-xxx" is "enable-xxx".
2312 The patented RC5 and MDC2 algorithms will now be disabled unless
2313 "enable-rc5" and "enable-mdc2", respectively, are specified.
2315 (IDEA remains enabled despite being patented. This is because IDEA
2316 is frequently required for interoperability, and there is no license
2317 fee for non-commercial use. As before, "no-idea" can be used to
2318 avoid this algorithm.)
2322 *) Add processing of proxy certificates (see RFC 3820). This work was
2323 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2324 EGEE (Enabling Grids for E-science in Europe).
2327 *) RC4 performance overhaul on modern architectures/implementations, such
2328 as Intel P4, IA-64 and AMD64.
2331 *) New utility extract-section.pl. This can be used specify an alternative
2332 section number in a pod file instead of having to treat each file as
2333 a separate case in Makefile. This can be done by adding two lines to the
2336 =for comment openssl_section:XXX
2338 The blank line is mandatory.
2342 *) New arguments -certform, -keyform and -pass for s_client and s_server
2343 to allow alternative format key and certificate files and passphrase
2347 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2348 update associated structures and add various utility functions.
2350 Add new policy related verify parameters, include policy checking in
2351 standard verify code. Enhance 'smime' application with extra parameters
2352 to support policy checking and print out.
2355 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2356 Nehemiah processors. These extensions support AES encryption in hardware
2357 as well as RNG (though RNG support is currently disabled).
2358 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2360 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2363 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2364 [Andy Polyakov and a number of other people]
2366 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2367 implementation contributed by IBM.
2368 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2370 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2371 exponent rather than 'unsigned long'. There is a corresponding change to
2372 the new 'rsa_keygen' element of the RSA_METHOD structure.
2373 [Jelte Jansen, Geoff Thorpe]
2375 *) Functionality for creating the initial serial number file is now
2376 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2378 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2379 number file to 1, which is bound to cause problems. To avoid
2380 the problems while respecting compatibility between different 0.9.7
2381 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2382 CA.pl for serial number initialization. With the new release 0.9.8,
2383 we can fix the problem directly in the 'ca' utility.)
2386 *) Reduced header interdepencies by declaring more opaque objects in
2387 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2388 give fewer recursive includes, which could break lazy source code - so
2389 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2390 developers should define this symbol when building and using openssl to
2391 ensure they track the recommended behaviour, interfaces, [etc], but
2392 backwards-compatible behaviour prevails when this isn't defined.
2395 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2398 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2399 This will generate a random key of the appropriate length based on the
2400 cipher context. The EVP_CIPHER can provide its own random key generation
2401 routine to support keys of a specific form. This is used in the des and
2402 3des routines to generate a key of the correct parity. Update S/MIME
2403 code to use new functions and hence generate correct parity DES keys.
2404 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2405 valid (weak or incorrect parity).
2408 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2409 as looking them up. This is useful when the verified structure may contain
2410 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2411 present unless the new PKCS7_NO_CRL flag is asserted.
2414 *) Extend ASN1 oid configuration module. It now additionally accepts the
2417 shortName = some long name, 1.2.3.4
2420 *) Reimplemented the BN_CTX implementation. There is now no more static
2421 limitation on the number of variables it can handle nor the depth of the
2422 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2423 information can now expand as required, and rather than having a single
2424 static array of bignums, BN_CTX now uses a linked-list of such arrays
2425 allowing it to expand on demand whilst maintaining the usefulness of
2426 BN_CTX's "bundling".
2429 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2430 to allow all RSA operations to function using a single BN_CTX.
2433 *) Preliminary support for certificate policy evaluation and checking. This
2434 is initially intended to pass the tests outlined in "Conformance Testing
2435 of Relying Party Client Certificate Path Processing Logic" v1.07.
2438 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2439 remained unused and not that useful. A variety of other little bignum
2440 tweaks and fixes have also been made continuing on from the audit (see
2444 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2445 associated ASN1, EVP and SSL functions and old ASN1 macros.
2448 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2449 and this should never fail. So the return value from the use of
2450 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2451 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2454 *) BN_CTX_get() should return zero-valued bignums, providing the same
2455 initialised value as BN_new().
2456 [Geoff Thorpe, suggested by Ulf Möller]
2458 *) Support for inhibitAnyPolicy certificate extension.
2461 *) An audit of the BIGNUM code is underway, for which debugging code is
2462 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2463 is considered valid when processing BIGNUMs, and causes execution to
2464 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2465 further steps are taken to deliberately pollute unused data in BIGNUM
2466 structures to try and expose faulty code further on. For now, openssl will
2467 (in its default mode of operation) continue to tolerate the inconsistent
2468 forms that it has tolerated in the past, but authors and packagers should
2469 consider trying openssl and their own applications when compiled with
2470 these debugging symbols defined. It will help highlight potential bugs in
2471 their own code, and will improve the test coverage for OpenSSL itself. At
2472 some point, these tighter rules will become openssl's default to improve
2473 maintainability, though the assert()s and other overheads will remain only
2474 in debugging configurations. See bn.h for more details.
2475 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2477 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2478 that can only be obtained through BN_CTX_new() (which implicitly
2479 initialises it). The presence of this function only made it possible
2480 to overwrite an existing structure (and cause memory leaks).
2483 *) Because of the callback-based approach for implementing LHASH as a
2484 template type, lh_insert() adds opaque objects to hash-tables and
2485 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2486 to clean up those corresponding objects before destroying the hash table
2487 (and losing the object pointers). So some over-zealous constifications in
2488 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2489 objects as "const" and the lh_doall[_arg] callback wrappers are not
2490 prototyped to have "const" restrictions on the object pointers they are
2491 given (and so aren't required to cast them away any more).
2494 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2495 (speed) prefers to use its own implementation. The two implementations
2496 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2497 its object type properly exposed (MS_TM) instead of casting to/from "char
2498 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2499 aren't necessarily the greatest nomenclatures - but this is what was used
2500 internally to the implementation so I've used that for now.
2503 *) Ensure that deprecated functions do not get compiled when
2504 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2505 the self-tests were still using deprecated key-generation functions so
2506 these have been updated also.
2509 *) Reorganise PKCS#7 code to separate the digest location functionality
2510 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2511 New function PKCS7_set_digest() to set the digest type for PKCS#7
2512 digestedData type. Add additional code to correctly generate the
2513 digestedData type and add support for this type in PKCS7 initialization
2517 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2518 structure of type "other".
2521 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2522 sure the loop does correctly stop and breaking ("division by zero")
2523 modulus operations are not performed. The (pre-generated) prime
2524 table crypto/bn/bn_prime.h was already correct, but it could not be
2525 re-generated on some platforms because of the "division by zero"
2526 situation in the script.
2527 [Ralf S. Engelschall]
2529 *) Update support for ECC-based TLS ciphersuites according to
2530 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2531 SHA-1 now is only used for "small" curves (where the
2532 representation of a field element takes up to 24 bytes); for
2533 larger curves, the field element resulting from ECDH is directly
2534 used as premaster secret.
2535 [Douglas Stebila (Sun Microsystems Laboratories)]
2537 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2538 curve secp160r1 to the tests.
2539 [Douglas Stebila (Sun Microsystems Laboratories)]
2541 *) Add the possibility to load symbols globally with DSO.
2542 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2544 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2545 control of the error stack.
2548 *) Add support for STORE in ENGINE.
2551 *) Add the STORE type. The intention is to provide a common interface
2552 to certificate and key stores, be they simple file-based stores, or
2553 HSM-type store, or LDAP stores, or...
2554 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2557 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2558 pass a list of arguments to any function as well as provide a way
2559 for a function to pass data back to the caller.
2562 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2563 works like BUF_strdup() but can be used to duplicate a portion of
2564 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2568 *) Add the function sk_find_ex() which works like sk_find(), but will
2569 return an index to an element even if an exact match couldn't be
2570 found. The index is guaranteed to point at the element where the
2571 searched-for key would be inserted to preserve sorting order.
2574 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2575 takes an extra flags argument for optional functionality. Currently,
2576 the following flags are defined:
2578 OBJ_BSEARCH_VALUE_ON_NOMATCH
2579 This one gets OBJ_bsearch_ex() to return a pointer to the first
2580 element where the comparing function returns a negative or zero
2583 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2584 This one gets OBJ_bsearch_ex() to return a pointer to the first
2585 element where the comparing function returns zero. This is useful
2586 if there are more than one element where the comparing function
2590 *) Make it possible to create self-signed certificates with 'openssl ca'
2591 in such a way that the self-signed certificate becomes part of the
2592 CA database and uses the same mechanisms for serial number generation
2593 as all other certificate signing. The new flag '-selfsign' enables
2594 this functionality. Adapt CA.sh and CA.pl.in.
2597 *) Add functionality to check the public key of a certificate request
2598 against a given private. This is useful to check that a certificate
2599 request can be signed by that key (self-signing).
2602 *) Make it possible to have multiple active certificates with the same
2603 subject in the CA index file. This is done only if the keyword
2604 'unique_subject' is set to 'no' in the main CA section (default
2605 if 'CA_default') of the configuration file. The value is saved
2606 with the database itself in a separate index attribute file,
2607 named like the index file with '.attr' appended to the name.
2610 *) Generate muti valued AVAs using '+' notation in config files for
2614 *) Support for nameConstraints certificate extension.
2617 *) Support for policyConstraints certificate extension.
2620 *) Support for policyMappings certificate extension.
2623 *) Make sure the default DSA_METHOD implementation only uses its
2624 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2625 and change its own handlers to be NULL so as to remove unnecessary
2626 indirection. This lets alternative implementations fallback to the
2627 default implementation more easily.
2630 *) Support for directoryName in GeneralName related extensions
2634 *) Make it possible to link applications using Makefile.shared.
2635 Make that possible even when linking against static libraries!
2638 *) Support for single pass processing for S/MIME signing. This now
2639 means that S/MIME signing can be done from a pipe, in addition
2640 cleartext signing (multipart/signed type) is effectively streaming
2641 and the signed data does not need to be all held in memory.
2643 This is done with a new flag PKCS7_STREAM. When this flag is set
2644 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2645 is done after the data is output (and digests calculated) in
2646 SMIME_write_PKCS7().
2649 *) Add full support for -rpath/-R, both in shared libraries and
2650 applications, at least on the platforms where it's known how
2654 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2655 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2656 will now compute a table of multiples of the generator that
2657 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2658 faster (notably in the case of a single point multiplication,
2659 scalar * generator).
2660 [Nils Larsch, Bodo Moeller]
2662 *) IPv6 support for certificate extensions. The various extensions
2663 which use the IP:a.b.c.d can now take IPv6 addresses using the
2664 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2668 *) Added an ENGINE that implements RSA by performing private key
2669 exponentiations with the GMP library. The conversions to and from
2670 GMP's mpz_t format aren't optimised nor are any montgomery forms
2671 cached, and on x86 it appears OpenSSL's own performance has caught up.
2672 However there are likely to be other architectures where GMP could
2673 provide a boost. This ENGINE is not built in by default, but it can be
2674 specified at Configure time and should be accompanied by the necessary
2675 linker additions, eg;
2676 ./config -DOPENSSL_USE_GMP -lgmp
2679 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2680 testing availability of engines with "-t" - the old behaviour is
2681 produced by increasing the feature's verbosity with "-tt".
2684 *) ECDSA routines: under certain error conditions uninitialized BN objects
2685 could be freed. Solution: make sure initialization is performed early
2686 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2690 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2691 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2692 software implementations. For DSA and DH, parameter generation can
2693 also be overriden by providing the appropriate method callbacks.
2696 *) Change the "progress" mechanism used in key-generation and
2697 primality testing to functions that take a new BN_GENCB pointer in
2698 place of callback/argument pairs. The new API functions have "_ex"
2699 postfixes and the older functions are reimplemented as wrappers for
2700 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2701 declarations of the old functions to help (graceful) attempts to
2702 migrate to the new functions. Also, the new key-generation API
2703 functions operate on a caller-supplied key-structure and return
2704 success/failure rather than returning a key or NULL - this is to
2705 help make "keygen" another member function of RSA_METHOD etc.
2707 Example for using the new callback interface:
2709 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2713 BN_GENCB_set(&my_cb, my_callback, my_arg);
2715 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2716 /* For the meaning of a, b in calls to my_callback(), see the
2717 * documentation of the function that calls the callback.
2718 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2719 * my_callback should return 1 if it wants BN_is_prime_ex()
2720 * to continue, or 0 to stop.
2725 *) Change the ZLIB compression method to be stateful, and make it
2726 available to TLS with the number defined in
2727 draft-ietf-tls-compression-04.txt.
2730 *) Add the ASN.1 structures and functions for CertificatePair, which
2731 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2733 CertificatePair ::= SEQUENCE {
2734 forward [0] Certificate OPTIONAL,
2735 reverse [1] Certificate OPTIONAL,
2736 -- at least one of the pair shall be present -- }
2738 Also implement the PEM functions to read and write certificate
2739 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2741 This needed to be defined, mostly for the sake of the LDAP
2742 attribute crossCertificatePair, but may prove useful elsewhere as
2746 *) Make it possible to inhibit symlinking of shared libraries in
2747 Makefile.shared, for Cygwin's sake.
2750 *) Extend the BIGNUM API by creating a function
2751 void BN_set_negative(BIGNUM *a, int neg);
2752 and a macro that behave like
2753 int BN_is_negative(const BIGNUM *a);
2755 to avoid the need to access 'a->neg' directly in applications.
2758 *) Implement fast modular reduction for pseudo-Mersenne primes
2759 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2760 EC_GROUP_new_curve_GFp() will now automatically use this
2762 [Nils Larsch <nla@trustcenter.de>]
2764 *) Add new lock type (CRYPTO_LOCK_BN).
2767 *) Change the ENGINE framework to automatically load engines
2768 dynamically from specific directories unless they could be
2769 found to already be built in or loaded. Move all the
2770 current engines except for the cryptodev one to a new
2772 The engines in engines/ are built as shared libraries if
2773 the "shared" options was given to ./Configure or ./config.
2774 Otherwise, they are inserted in libcrypto.a.
2775 /usr/local/ssl/engines is the default directory for dynamic
2776 engines, but that can be overriden at configure time through
2777 the usual use of --prefix and/or --openssldir, and at run
2778 time with the environment variable OPENSSL_ENGINES.
2779 [Geoff Thorpe and Richard Levitte]
2781 *) Add Makefile.shared, a helper makefile to build shared
2782 libraries. Addapt Makefile.org.
2785 *) Add version info to Win32 DLLs.
2786 [Peter 'Luna' Runestig" <peter@runestig.com>]
2788 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2789 can be added using this API to created arbitrary PKCS#12
2790 files while avoiding the low level API.
2792 New options to PKCS12_create(), key or cert can be NULL and
2793 will then be omitted from the output file. The encryption
2794 algorithm NIDs can be set to -1 for no encryption, the mac
2795 iteration count can be set to 0 to omit the mac.
2797 Enhance pkcs12 utility by making the -nokeys and -nocerts
2798 options work when creating a PKCS#12 file. New option -nomac
2799 to omit the mac, NONE can be set for an encryption algorithm.
2800 New code is modified to use the enhanced PKCS12_create()
2801 instead of the low level API.
2804 *) Extend ASN1 encoder to support indefinite length constructed
2805 encoding. This can output sequences tags and octet strings in
2806 this form. Modify pk7_asn1.c to support indefinite length
2807 encoding. This is experimental and needs additional code to
2808 be useful, such as an ASN1 bio and some enhanced streaming
2811 Extend template encode functionality so that tagging is passed
2812 down to the template encoder.
2815 *) Let 'openssl req' fail if an argument to '-newkey' is not
2816 recognized instead of using RSA as a default.
2819 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2820 As these are not official, they are not included in "ALL";
2821 the "ECCdraft" ciphersuite group alias can be used to select them.
2822 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2824 *) Add ECDH engine support.
2825 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2827 *) Add ECDH in new directory crypto/ecdh/.
2828 [Douglas Stebila (Sun Microsystems Laboratories)]
2830 *) Let BN_rand_range() abort with an error after 100 iterations
2831 without success (which indicates a broken PRNG).
2834 *) Change BN_mod_sqrt() so that it verifies that the input value
2835 is really the square of the return value. (Previously,
2836 BN_mod_sqrt would show GIGO behaviour.)
2839 *) Add named elliptic curves over binary fields from X9.62, SECG,
2840 and WAP/WTLS; add OIDs that were still missing.
2842 [Sheueling Chang Shantz and Douglas Stebila
2843 (Sun Microsystems Laboratories)]
2845 *) Extend the EC library for elliptic curves over binary fields
2846 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2849 EC_GF2m_simple_method
2853 EC_GROUP_new_curve_GF2m
2854 EC_GROUP_set_curve_GF2m
2855 EC_GROUP_get_curve_GF2m
2856 EC_POINT_set_affine_coordinates_GF2m
2857 EC_POINT_get_affine_coordinates_GF2m
2858 EC_POINT_set_compressed_coordinates_GF2m
2860 Point compression for binary fields is disabled by default for
2861 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2864 As binary polynomials are represented as BIGNUMs, various members
2865 of the EC_GROUP and EC_POINT data structures can be shared
2866 between the implementations for prime fields and binary fields;
2867 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2868 are essentially identical to their ..._GFp counterparts.
2869 (For simplicity, the '..._GFp' prefix has been dropped from
2870 various internal method names.)
2872 An internal 'field_div' method (similar to 'field_mul' and
2873 'field_sqr') has been added; this is used only for binary fields.
2875 [Sheueling Chang Shantz and Douglas Stebila
2876 (Sun Microsystems Laboratories)]
2878 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2879 through methods ('mul', 'precompute_mult').
2881 The generic implementations (now internally called 'ec_wNAF_mul'
2882 and 'ec_wNAF_precomputed_mult') remain the default if these
2883 methods are undefined.
2885 [Sheueling Chang Shantz and Douglas Stebila
2886 (Sun Microsystems Laboratories)]
2888 *) New function EC_GROUP_get_degree, which is defined through
2889 EC_METHOD. For curves over prime fields, this returns the bit
2890 length of the modulus.
2892 [Sheueling Chang Shantz and Douglas Stebila
2893 (Sun Microsystems Laboratories)]
2895 *) New functions EC_GROUP_dup, EC_POINT_dup.
2896 (These simply call ..._new and ..._copy).
2898 [Sheueling Chang Shantz and Douglas Stebila
2899 (Sun Microsystems Laboratories)]
2901 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2902 Polynomials are represented as BIGNUMs (where the sign bit is not
2903 used) in the following functions [macros]:
2906 BN_GF2m_sub [= BN_GF2m_add]
2907 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2908 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2909 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2911 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2912 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2913 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2914 BN_GF2m_cmp [= BN_ucmp]
2916 (Note that only the 'mod' functions are actually for fields GF(2^m).
2917 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2919 For some functions, an the irreducible polynomial defining a
2920 field can be given as an 'unsigned int[]' with strictly
2921 decreasing elements giving the indices of those bits that are set;
2922 i.e., p[] represents the polynomial
2923 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2925 p[0] > p[1] > ... > p[k] = 0.
2926 This applies to the following functions:
2931 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2932 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2934 BN_GF2m_mod_sqrt_arr
2935 BN_GF2m_mod_solve_quad_arr
2939 Conversion can be performed by the following functions:
2944 bntest.c has additional tests for binary polynomial arithmetic.
2946 Two implementations for BN_GF2m_mod_div() are available.
2947 The default algorithm simply uses BN_GF2m_mod_inv() and
2948 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2949 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2950 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2952 [Sheueling Chang Shantz and Douglas Stebila
2953 (Sun Microsystems Laboratories)]
2955 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2956 functionality is disabled at compile-time.
2957 [Douglas Stebila <douglas.stebila@sun.com>]
2959 *) Change default behaviour of 'openssl asn1parse' so that more
2960 information is visible when viewing, e.g., a certificate:
2962 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2963 mode the content of non-printable OCTET STRINGs is output in a
2964 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2965 avoid the appearance of a printable string.
2966 [Nils Larsch <nla@trustcenter.de>]
2968 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2970 EC_GROUP_set_asn1_flag()
2971 EC_GROUP_get_asn1_flag()
2972 EC_GROUP_set_point_conversion_form()
2973 EC_GROUP_get_point_conversion_form()
2974 These control ASN1 encoding details:
2975 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2976 has been set to OPENSSL_EC_NAMED_CURVE.
2977 - Points are encoded in uncompressed form by default; options for
2978 asn1_for are as for point2oct, namely
2979 POINT_CONVERSION_COMPRESSED
2980 POINT_CONVERSION_UNCOMPRESSED
2981 POINT_CONVERSION_HYBRID
2983 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2986 EC_GROUP_get0_seed()
2987 EC_GROUP_get_seed_len()
2988 This is used only for ASN1 purposes (so far).
2989 [Nils Larsch <nla@trustcenter.de>]
2991 *) Add 'field_type' member to EC_METHOD, which holds the NID
2992 of the appropriate field type OID. The new function
2993 EC_METHOD_get_field_type() returns this value.
2994 [Nils Larsch <nla@trustcenter.de>]
2999 EC_POINT_point2hex()
3000 EC_POINT_hex2point()
3001 providing useful interfaces to EC_POINT_point2oct() and
3002 EC_POINT_oct2point().
3003 [Nils Larsch <nla@trustcenter.de>]
3005 *) Change internals of the EC library so that the functions
3006 EC_GROUP_set_generator()
3007 EC_GROUP_get_generator()
3008 EC_GROUP_get_order()
3009 EC_GROUP_get_cofactor()
3010 are implemented directly in crypto/ec/ec_lib.c and not dispatched
3011 to methods, which would lead to unnecessary code duplication when
3012 adding different types of curves.
3013 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
3015 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
3016 arithmetic, and such that modified wNAFs are generated
3017 (which avoid length expansion in many cases).
3020 *) Add a function EC_GROUP_check_discriminant() (defined via
3021 EC_METHOD) that verifies that the curve discriminant is non-zero.
3023 Add a function EC_GROUP_check() that makes some sanity tests
3024 on a EC_GROUP, its generator and order. This includes
3025 EC_GROUP_check_discriminant().
3026 [Nils Larsch <nla@trustcenter.de>]
3028 *) Add ECDSA in new directory crypto/ecdsa/.
3030 Add applications 'openssl ecparam' and 'openssl ecdsa'
3031 (these are based on 'openssl dsaparam' and 'openssl dsa').
3033 ECDSA support is also included in various other files across the
3034 library. Most notably,
3035 - 'openssl req' now has a '-newkey ecdsa:file' option;
3036 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
3037 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
3038 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
3039 them suitable for ECDSA where domain parameters must be
3040 extracted before the specific public key;
3041 - ECDSA engine support has been added.
3042 [Nils Larsch <nla@trustcenter.de>]
3044 *) Include some named elliptic curves, and add OIDs from X9.62,
3045 SECG, and WAP/WTLS. Each curve can be obtained from the new
3047 EC_GROUP_new_by_curve_name(),
3048 and the list of available named curves can be obtained with
3049 EC_get_builtin_curves().
3050 Also add a 'curve_name' member to EC_GROUP objects, which can be
3052 EC_GROUP_set_curve_name()
3053 EC_GROUP_get_curve_name()
3054 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
3056 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3057 was actually never needed) and in BN_mul(). The removal in BN_mul()
3058 required a small change in bn_mul_part_recursive() and the addition
3059 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3060 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3061 bn_sub_words() and bn_add_words() except they take arrays with
3065 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
3067 *) Cleanse PEM buffers before freeing them since they may contain
3069 [Benjamin Bennett <ben@psc.edu>]
3071 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3072 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3073 authentication-only ciphersuites.
3076 *) Since AES128 and AES256 share a single mask bit in the logic of
3077 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3078 kludge to work properly if AES128 is available and AES256 isn't.
3081 *) Expand security boundary to match 1.1.1 module.
3084 *) Remove redundant features: hash file source, editing of test vectors
3085 modify fipsld to use external fips_premain.c signature.
3088 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3089 run algorithm test programs.
3092 *) Make algorithm test programs more tolerant of whitespace.
3095 *) Have SSL/TLS server implementation tolerate "mismatched" record
3096 protocol version while receiving ClientHello even if the
3097 ClientHello is fragmented. (The server can't insist on the
3098 particular protocol version it has chosen before the ServerHello
3099 message has informed the client about his choice.)
3102 *) Load error codes if they are not already present instead of using a
3103 static variable. This allows them to be cleanly unloaded and reloaded.
3106 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3108 *) Introduce limits to prevent malicious keys being able to
3109 cause a denial of service. (CVE-2006-2940)
3110 [Steve Henson, Bodo Moeller]
3112 *) Fix ASN.1 parsing of certain invalid structures that can result
3113 in a denial of service. (CVE-2006-2937) [Steve Henson]
3115 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3116 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3118 *) Fix SSL client code which could crash if connecting to a
3119 malicious SSLv2 server. (CVE-2006-4343)
3120 [Tavis Ormandy and Will Drewry, Google Security Team]
3122 *) Change ciphersuite string processing so that an explicit
3123 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3124 will no longer include "AES128-SHA"), and any other similar
3125 ciphersuite (same bitmap) from *other* protocol versions (so that
3126 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3127 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3128 changes from 0.9.8b and 0.9.8d.
3131 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3133 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3134 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3136 *) Change the Unix randomness entropy gathering to use poll() when
3137 possible instead of select(), since the latter has some
3138 undesirable limitations.
3139 [Darryl Miles via Richard Levitte and Bodo Moeller]
3141 *) Disable rogue ciphersuites:
3143 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3144 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3145 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3147 The latter two were purportedly from
3148 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3151 Also deactive the remaining ciphersuites from
3152 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3153 unofficial, and the ID has long expired.
3156 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3157 dual-core machines) and other potential thread-safety issues.
3160 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3162 *) Adapt fipsld and the build system to link against the validated FIPS
3163 module in FIPS mode.
3166 *) Fixes for VC++ 2005 build under Windows.
3169 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3170 from a Windows bash shell such as MSYS. It is autodetected from the
3171 "config" script when run from a VC++ environment. Modify standard VC++
3172 build to use fipscanister.o from the GNU make build.
3175 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3177 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3178 The value now differs depending on if you build for FIPS or not.
3179 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3180 safely run with a non-FIPSed libcrypto, as it may crash because of
3181 the difference induced by this change.
3184 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3186 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3187 (part of SSL_OP_ALL). This option used to disable the
3188 countermeasure against man-in-the-middle protocol-version
3189 rollback in the SSL 2.0 server implementation, which is a bad
3190 idea. (CVE-2005-2969)
3192 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3193 for Information Security, National Institute of Advanced Industrial
3194 Science and Technology [AIST], Japan)]
3196 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3197 mainly for FIPS compliance and not fully integrated at this stage.
3200 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3201 the exponentiation using a fixed-length exponent. (Otherwise,
3202 the information leaked through timing could expose the secret key
3203 after many signatures; cf. Bleichenbacher's attack on DSA with
3207 *) Make a new fixed-window mod_exp implementation the default for
3208 RSA, DSA, and DH private-key operations so that the sequence of
3209 squares and multiplies and the memory access pattern are
3210 independent of the particular secret key. This will mitigate
3211 cache-timing and potential related attacks.
3213 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3214 and this is automatically used by BN_mod_exp_mont() if the new flag
3215 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3216 will use this BN flag for private exponents unless the flag
3217 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3218 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3220 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3222 *) Change the client implementation for SSLv23_method() and
3223 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3224 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3225 (Previously, the SSL 2.0 backwards compatible Client Hello
3226 message format would be used even with SSL_OP_NO_SSLv2.)
3229 *) Add support for smime-type MIME parameter in S/MIME messages which some
3233 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3234 a threadsafe manner. Modify rsa code to use new function and add calls
3235 to dsa and dh code (which had race conditions before).
3238 *) Include the fixed error library code in the C error file definitions
3239 instead of fixing them up at runtime. This keeps the error code
3240 structures constant.
3243 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3245 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3248 *) Fixes for newer kerberos headers. NB: the casts are needed because
3249 the 'length' field is signed on one version and unsigned on another
3250 with no (?) obvious way to tell the difference, without these VC++
3251 complains. Also the "definition" of FAR (blank) is no longer included
3252 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3253 some needed definitions.
3256 *) Undo Cygwin change.
3259 *) Added support for proxy certificates according to RFC 3820.
3260 Because they may be a security thread to unaware applications,
3261 they must be explicitely allowed in run-time. See
3262 docs/HOWTO/proxy_certificates.txt for further information.
3265 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3267 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3268 server and client random values. Previously
3269 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3270 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3272 This change has negligible security impact because:
3274 1. Server and client random values still have 24 bytes of pseudo random
3277 2. Server and client random values are sent in the clear in the initial
3280 3. The master secret is derived using the premaster secret (48 bytes in
3281 size for static RSA ciphersuites) as well as client server and random
3284 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3287 [Stephen Henson, reported by UK NISCC]
3289 *) Use Windows randomness collection on Cygwin.
3292 *) Fix hang in EGD/PRNGD query when communication socket is closed
3293 prematurely by EGD/PRNGD.
3294 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3296 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3299 *) Back-port of selected performance improvements from development
3300 branch, as well as improved support for PowerPC platforms.
3303 *) Add lots of checks for memory allocation failure, error codes to indicate
3304 failure and freeing up memory if a failure occurs.
3305 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3307 *) Add new -passin argument to dgst.
3310 *) Perform some character comparisons of different types in X509_NAME_cmp:
3311 this is needed for some certificates that reencode DNs into UTF8Strings
3312 (in violation of RFC3280) and can't or wont issue name rollover
3316 *) Make an explicit check during certificate validation to see that
3317 the CA setting in each certificate on the chain is correct. As a
3318 side effect always do the following basic checks on extensions,
3319 not just when there's an associated purpose to the check:
3321 - if there is an unhandled critical extension (unless the user
3322 has chosen to ignore this fault)
3323 - if the path length has been exceeded (if one is set at all)
3324 - that certain extensions fit the associated purpose (if one has
3328 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3330 *) Avoid a race condition when CRLs are checked in a multi threaded
3331 environment. This would happen due to the reordering of the revoked
3332 entries during signature checking and serial number lookup. Now the
3333 encoding is cached and the serial number sort performed under a lock.
3334 Add new STACK function sk_is_sorted().
3337 *) Add Delta CRL to the extension code.
3340 *) Various fixes to s3_pkt.c so alerts are sent properly.
3341 [David Holmes <d.holmes@f5.com>]
3343 *) Reduce the chances of duplicate issuer name and serial numbers (in
3344 violation of RFC3280) using the OpenSSL certificate creation utilities.
3345 This is done by creating a random 64 bit value for the initial serial
3346 number when a serial number file is created or when a self signed
3347 certificate is created using 'openssl req -x509'. The initial serial
3348 number file is created using 'openssl x509 -next_serial' in CA.pl
3349 rather than being initialized to 1.
3352 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3354 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3355 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3356 [Joe Orton, Steve Henson]
3358 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3360 [Joe Orton, Steve Henson]
3362 *) Make it possible to have multiple active certificates with the same
3363 subject in the CA index file. This is done only if the keyword
3364 'unique_subject' is set to 'no' in the main CA section (default
3365 if 'CA_default') of the configuration file. The value is saved
3366 with the database itself in a separate index attribute file,
3367 named like the index file with '.attr' appended to the name.
3370 *) X509 verify fixes. Disable broken certificate workarounds when
3371 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3372 keyUsage extension present. Don't accept CRLs with unhandled critical
3373 extensions: since verify currently doesn't process CRL extensions this
3374 rejects a CRL with *any* critical extensions. Add new verify error codes
3378 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3379 A clarification of RFC2560 will require the use of OCTET STRINGs and
3380 some implementations cannot handle the current raw format. Since OpenSSL
3381 copies and compares OCSP nonces as opaque blobs without any attempt at
3382 parsing them this should not create any compatibility issues.
3385 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3386 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3387 this HMAC (and other) operations are several times slower than OpenSSL
3391 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3392 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3394 *) Use the correct content when signing type "other".
3397 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3399 *) Fix various bugs revealed by running the NISCC test suite:
3401 Stop out of bounds reads in the ASN1 code when presented with
3402 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3404 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3406 If verify callback ignores invalid public key errors don't try to check
3407 certificate signature with the NULL public key.
3411 *) New -ignore_err option in ocsp application to stop the server
3412 exiting on the first error in a request.
3415 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3416 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3420 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3421 extra data after the compression methods not only for TLS 1.0
3422 but also for SSL 3.0 (as required by the specification).
3423 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3425 *) Change X509_certificate_type() to mark the key as exported/exportable
3426 when it's 512 *bits* long, not 512 bytes.
3429 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3430 blocks during encryption.
3433 *) Various fixes to base64 BIO and non blocking I/O. On write
3434 flushes were not handled properly if the BIO retried. On read
3435 data was not being buffered properly and had various logic bugs.
3436 This also affects blocking I/O when the data being decoded is a
3440 *) Various S/MIME bugfixes and compatibility changes:
3441 output correct application/pkcs7 MIME type if
3442 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3443 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3444 of files as .eml work). Correctly handle very long lines in MIME
3448 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3450 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3451 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3452 a protocol version number mismatch like a decryption error
3453 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3456 *) Turn on RSA blinding by default in the default implementation
3457 to avoid a timing attack. Applications that don't want it can call
3458 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3459 They would be ill-advised to do so in most cases.
3460 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3462 *) Change RSA blinding code so that it works when the PRNG is not
3463 seeded (in this case, the secret RSA exponent is abused as
3464 an unpredictable seed -- if it is not unpredictable, there
3465 is no point in blinding anyway). Make RSA blinding thread-safe
3466 by remembering the creator's thread ID in rsa->blinding and
3467 having all other threads use local one-time blinding factors
3468 (this requires more computation than sharing rsa->blinding, but
3469 avoids excessive locking; and if an RSA object is not shared
3470 between threads, blinding will still be very fast).
3473 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3474 ENGINE as defaults for all supported algorithms irrespective of
3475 the 'flags' parameter. 'flags' is now honoured, so applications
3476 should make sure they are passing it correctly.
3479 *) Target "mingw" now allows native Windows code to be generated in
3480 the Cygwin environment as well as with the MinGW compiler.
3483 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3485 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3486 via timing by performing a MAC computation even if incorrrect
3487 block cipher padding has been found. This is a countermeasure
3488 against active attacks where the attacker has to distinguish
3489 between bad padding and a MAC verification error. (CVE-2003-0078)
3491 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3492 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3493 Martin Vuagnoux (EPFL, Ilion)]
3495 *) Make the no-err option work as intended. The intention with no-err
3496 is not to have the whole error stack handling routines removed from
3497 libcrypto, it's only intended to remove all the function name and
3498 reason texts, thereby removing some of the footprint that may not
3499 be interesting if those errors aren't displayed anyway.
3501 NOTE: it's still possible for any application or module to have it's
3502 own set of error texts inserted. The routines are there, just not
3503 used by default when no-err is given.
3506 *) Add support for FreeBSD on IA64.
3507 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3509 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3510 Kerberos function mit_des_cbc_cksum(). Before this change,
3511 the value returned by DES_cbc_cksum() was like the one from
3512 mit_des_cbc_cksum(), except the bytes were swapped.
3513 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3515 *) Allow an application to disable the automatic SSL chain building.
3516 Before this a rather primitive chain build was always performed in
3517 ssl3_output_cert_chain(): an application had no way to send the
3518 correct chain if the automatic operation produced an incorrect result.
3520 Now the chain builder is disabled if either:
3522 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3524 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3526 The reasoning behind this is that an application would not want the
3527 auto chain building to take place if extra chain certificates are
3528 present and it might also want a means of sending no additional
3529 certificates (for example the chain has two certificates and the
3533 *) Add the possibility to build without the ENGINE framework.
3534 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3536 *) Under Win32 gmtime() can return NULL: check return value in
3537 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3540 *) DSA routines: under certain error conditions uninitialized BN objects
3541 could be freed. Solution: make sure initialization is performed early
3542 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3543 Nils Larsch <nla@trustcenter.de> via PR#459)
3546 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3547 checked on reconnect on the client side, therefore session resumption
3548 could still fail with a "ssl session id is different" error. This
3549 behaviour is masked when SSL_OP_ALL is used due to
3550 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3551 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3552 followup to PR #377.
3555 *) IA-32 assembler support enhancements: unified ELF targets, support
3556 for SCO/Caldera platforms, fix for Cygwin shared build.
3559 *) Add support for FreeBSD on sparc64. As a consequence, support for
3560 FreeBSD on non-x86 processors is separate from x86 processors on
3561 the config script, much like the NetBSD support.
3562 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3564 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3566 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3569 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3570 code (06) was taken as the first octet of the session ID and the last
3571 octet was ignored consequently. As a result SSLv2 client side session
3572 caching could not have worked due to the session ID mismatch between
3574 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3578 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3579 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3583 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3584 seems that in spite of existing for more than a year, many application
3585 author have done nothing to provide the necessary callbacks, which
3586 means that this particular engine will not work properly anywhere.
3587 This is a very unfortunate situation which forces us, in the name
3588 of usability, to give the hw_ncipher.c a static lock, which is part
3590 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3591 appear in 0.9.8 or later. We EXPECT application authors to have
3592 dealt properly with this when 0.9.8 is released (unless we actually
3593 make such changes in the libcrypto locking code that changes will
3594 have to be made anyway).
3597 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3598 octets have been read, EOF or an error occurs. Without this change
3599 some truncated ASN1 structures will not produce an error.
3602 *) Disable Heimdal support, since it hasn't been fully implemented.
3603 Still give the possibility to force the use of Heimdal, but with
3604 warnings and a request that patches get sent to openssl-dev.
3607 *) Add the VC-CE target, introduce the WINCE sysname, and add
3608 INSTALL.WCE and appropriate conditionals to make it build.
3609 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3611 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3612 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3613 edit numbers of the version.
3614 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3616 *) Introduce safe string copy and catenation functions
3617 (BUF_strlcpy() and BUF_strlcat()).
3618 [Ben Laurie (CHATS) and Richard Levitte]
3620 *) Avoid using fixed-size buffers for one-line DNs.
3621 [Ben Laurie (CHATS)]
3623 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3624 resizing buffers containing secrets, and use where appropriate.
3625 [Ben Laurie (CHATS)]
3627 *) Avoid using fixed size buffers for configuration file location.
3628 [Ben Laurie (CHATS)]
3630 *) Avoid filename truncation for various CA files.
3631 [Ben Laurie (CHATS)]
3633 *) Use sizeof in preference to magic numbers.
3634 [Ben Laurie (CHATS)]
3636 *) Avoid filename truncation in cert requests.
3637 [Ben Laurie (CHATS)]
3639 *) Add assertions to check for (supposedly impossible) buffer
3641 [Ben Laurie (CHATS)]
3643 *) Don't cache truncated DNS entries in the local cache (this could
3644 potentially lead to a spoofing attack).
3645 [Ben Laurie (CHATS)]
3647 *) Fix various buffers to be large enough for hex/decimal
3648 representations in a platform independent manner.
3649 [Ben Laurie (CHATS)]
3651 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3652 resizing buffers containing secrets, and use where appropriate.
3653 [Ben Laurie (CHATS)]
3655 *) Add BIO_indent() to avoid much slightly worrying code to do
3657 [Ben Laurie (CHATS)]
3659 *) Convert sprintf()/BIO_puts() to BIO_printf().
3660 [Ben Laurie (CHATS)]
3662 *) buffer_gets() could terminate with the buffer only half
3664 [Ben Laurie (CHATS)]
3666 *) Add assertions to prevent user-supplied crypto functions from
3667 overflowing internal buffers by having large block sizes, etc.
3668 [Ben Laurie (CHATS)]
3670 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3672 [Ben Laurie (CHATS)]
3674 *) Eliminate unused copy of key in RC4.
3675 [Ben Laurie (CHATS)]
3677 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3678 [Ben Laurie (CHATS)]
3680 *) Fix off-by-one error in EGD path.
3681 [Ben Laurie (CHATS)]
3683 *) If RANDFILE path is too long, ignore instead of truncating.
3684 [Ben Laurie (CHATS)]
3686 *) Eliminate unused and incorrectly sized X.509 structure
3688 [Ben Laurie (CHATS)]
3690 *) Eliminate unused and dangerous function knumber().
3691 [Ben Laurie (CHATS)]
3693 *) Eliminate unused and dangerous structure, KSSL_ERR.
3694 [Ben Laurie (CHATS)]
3696 *) Protect against overlong session ID context length in an encoded
3697 session object. Since these are local, this does not appear to be
3699 [Ben Laurie (CHATS)]
3701 *) Change from security patch (see 0.9.6e below) that did not affect
3702 the 0.9.6 release series:
3704 Remote buffer overflow in SSL3 protocol - an attacker could
3705 supply an oversized master key in Kerberos-enabled versions.
3707 [Ben Laurie (CHATS)]
3709 *) Change the SSL kerb5 codes to match RFC 2712.
3712 *) Make -nameopt work fully for req and add -reqopt switch.
3713 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3715 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3716 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3718 *) Make sure tests can be performed even if the corresponding algorithms
3719 have been removed entirely. This was also the last step to make
3720 OpenSSL compilable with DJGPP under all reasonable conditions.
3721 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3723 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3724 to allow version independent disabling of normally unselected ciphers,
3725 which may be activated as a side-effect of selecting a single cipher.
3727 (E.g., cipher list string "RSA" enables ciphersuites that are left
3728 out of "ALL" because they do not provide symmetric encryption.
3729 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3730 [Lutz Jaenicke, Bodo Moeller]
3732 *) Add appropriate support for separate platform-dependent build
3733 directories. The recommended way to make a platform-dependent
3734 build directory is the following (tested on Linux), maybe with
3737 # Place yourself outside of the OpenSSL source tree. In
3738 # this example, the environment variable OPENSSL_SOURCE
3739 # is assumed to contain the absolute OpenSSL source directory.
3740 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3741 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3742 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3743 mkdir -p `dirname $F`
3744 ln -s $OPENSSL_SOURCE/$F $F
3747 To be absolutely sure not to disturb the source tree, a "make clean"
3748 is a good thing. If it isn't successfull, don't worry about it,
3749 it probably means the source directory is very clean.
3752 *) Make sure any ENGINE control commands make local copies of string
3753 pointers passed to them whenever necessary. Otherwise it is possible
3754 the caller may have overwritten (or deallocated) the original string
3755 data when a later ENGINE operation tries to use the stored values.
3756 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3758 *) Improve diagnostics in file reading and command-line digests.
3759 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3761 *) Add AES modes CFB and OFB to the object database. Correct an
3762 error in AES-CFB decryption.
3765 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3766 allows existing EVP_CIPHER_CTX structures to be reused after
3767 calling EVP_*Final(). This behaviour is used by encryption
3768 BIOs and some applications. This has the side effect that
3769 applications must explicitly clean up cipher contexts with
3770 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3773 *) Check the values of dna and dnb in bn_mul_recursive before calling
3774 bn_mul_comba (a non zero value means the a or b arrays do not contain
3775 n2 elements) and fallback to bn_mul_normal if either is not zero.
3778 *) Fix escaping of non-ASCII characters when using the -subj option
3779 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3782 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3783 form for "surname", serialNumber has no short form.
3784 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3785 therefore remove "mail" short name for "internet 7".
3786 The OID for unique identifiers in X509 certificates is
3787 x500UniqueIdentifier, not uniqueIdentifier.
3788 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3791 *) Add an "init" command to the ENGINE config module and auto initialize
3792 ENGINEs. Without any "init" command the ENGINE will be initialized
3793 after all ctrl commands have been executed on it. If init=1 the
3794 ENGINE is initailized at that point (ctrls before that point are run
3795 on the uninitialized ENGINE and after on the initialized one). If
3796 init=0 then the ENGINE will not be iniatialized at all.
3799 *) Fix the 'app_verify_callback' interface so that the user-defined
3800 argument is actually passed to the callback: In the
3801 SSL_CTX_set_cert_verify_callback() prototype, the callback
3802 declaration has been changed from
3805 int (*cb)(X509_STORE_CTX *,void *);
3806 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3807 i=s->ctx->app_verify_callback(&ctx)
3808 has been changed into
3809 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3811 To update applications using SSL_CTX_set_cert_verify_callback(),
3812 a dummy argument can be added to their callback functions.
3813 [D. K. Smetters <smetters@parc.xerox.com>]
3815 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3816 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3818 *) Add and OPENSSL_LOAD_CONF define which will cause
3819 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3820 This allows older applications to transparently support certain
3821 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3822 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3823 load the config file and OPENSSL_add_all_algorithms_conf() which will
3824 always load it have also been added.
3827 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3828 Adjust NIDs and EVP layer.
3829 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3831 *) Config modules support in openssl utility.
3833 Most commands now load modules from the config file,
3834 though in a few (such as version) this isn't done
3835 because it couldn't be used for anything.
3837 In the case of ca and req the config file used is
3838 the same as the utility itself: that is the -config
3839 command line option can be used to specify an
3843 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3844 use "openssl_conf" if filename is NULL use default openssl config file.
3847 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3848 config section name. Add a new flag to tolerate a missing config file
3849 and move code to CONF_modules_load_file().
3852 *) Support for crypto accelerator cards from Accelerated Encryption
3853 Processing, www.aep.ie. (Use engine 'aep')
3854 The support was copied from 0.9.6c [engine] and adapted/corrected
3855 to work with the new engine framework.
3856 [AEP Inc. and Richard Levitte]
3858 *) Support for SureWare crypto accelerator cards from Baltimore
3859 Technologies. (Use engine 'sureware')
3860 The support was copied from 0.9.6c [engine] and adapted
3861 to work with the new engine framework.
3864 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3865 make the newer ENGINE framework commands for the CHIL engine work.
3866 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3868 *) Make it possible to produce shared libraries on ReliantUNIX.
3869 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3871 *) Add the configuration target debug-linux-ppro.
3872 Make 'openssl rsa' use the general key loading routines
3873 implemented in apps.c, and make those routines able to
3874 handle the key format FORMAT_NETSCAPE and the variant
3876 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3878 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3879 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3881 *) Add -keyform to rsautl, and document -engine.
3882 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3884 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3885 BIO_R_NO_SUCH_FILE error code rather than the generic
3886 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3889 *) Add new functions
3891 ERR_peek_last_error_line
3892 ERR_peek_last_error_line_data.
3893 These are similar to
3896 ERR_peek_error_line_data,
3897 but report on the latest error recorded rather than the first one
3898 still in the error queue.
3899 [Ben Laurie, Bodo Moeller]
3901 *) default_algorithms option in ENGINE config module. This allows things
3903 default_algorithms = ALL
3904 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3907 *) Prelminary ENGINE config module.
3910 *) New experimental application configuration code.
3913 *) Change the AES code to follow the same name structure as all other
3914 symmetric ciphers, and behave the same way. Move everything to
3915 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3916 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3918 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3919 [Ben Laurie and Theo de Raadt]
3921 *) Add option to output public keys in req command.
3922 [Massimiliano Pala madwolf@openca.org]
3924 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3925 (up to about 10% better than before for P-192 and P-224).
3928 *) New functions/macros
3930 SSL_CTX_set_msg_callback(ctx, cb)
3931 SSL_CTX_set_msg_callback_arg(ctx, arg)
3932 SSL_set_msg_callback(ssl, cb)
3933 SSL_set_msg_callback_arg(ssl, arg)
3935 to request calling a callback function
3937 void cb(int write_p, int version, int content_type,
3938 const void *buf, size_t len, SSL *ssl, void *arg)
3940 whenever a protocol message has been completely received
3941 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3942 protocol version according to which the SSL library interprets
3943 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3944 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3945 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3946 specification (change_cipher_spec(20), alert(21), handshake(22)).
3947 'buf' and 'len' point to the actual message, 'ssl' to the
3948 SSL object, and 'arg' is the application-defined value set by
3949 SSL[_CTX]_set_msg_callback_arg().
3951 'openssl s_client' and 'openssl s_server' have new '-msg' options
3952 to enable a callback that displays all protocol messages.
3955 *) Change the shared library support so shared libraries are built as
3956 soon as the corresponding static library is finished, and thereby get
3957 openssl and the test programs linked against the shared library.
3958 This still only happens when the keyword "shard" has been given to
3959 the configuration scripts.
3961 NOTE: shared library support is still an experimental thing, and
3962 backward binary compatibility is still not guaranteed.
3963 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3965 *) Add support for Subject Information Access extension.
3966 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3968 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3969 additional bytes when new memory had to be allocated, not just
3970 when reusing an existing buffer.
3973 *) New command line and configuration option 'utf8' for the req command.
3974 This allows field values to be specified as UTF8 strings.
3977 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3978 runs for the former and machine-readable output for the latter.
3981 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3982 of the e-mail address in the DN (i.e., it will go into a certificate
3983 extension only). The new configuration file option 'email_in_dn = no'
3984 has the same effect.
3985 [Massimiliano Pala madwolf@openca.org]
3987 *) Change all functions with names starting with des_ to be starting
3988 with DES_ instead. Add wrappers that are compatible with libdes,
3989 but are named _ossl_old_des_*. Finally, add macros that map the
3990 des_* symbols to the corresponding _ossl_old_des_* if libdes
3991 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3992 desired, the des_* symbols will be mapped to DES_*, with one
3995 Since we provide two compatibility mappings, the user needs to
3996 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3997 compatibility is desired. The default (i.e., when that macro
3998 isn't defined) is OpenSSL 0.9.6c compatibility.
4000 There are also macros that enable and disable the support of old
4001 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
4002 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
4003 are defined, the default will apply: to support the old des routines.
4005 In either case, one must include openssl/des.h to get the correct
4006 definitions. Do not try to just include openssl/des_old.h, that
4009 NOTE: This is a major break of an old API into a new one. Software
4010 authors are encouraged to switch to the DES_ style functions. Some
4011 time in the future, des_old.h and the libdes compatibility functions
4012 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
4013 default), and then completely removed.
4016 *) Test for certificates which contain unsupported critical extensions.
4017 If such a certificate is found during a verify operation it is
4018 rejected by default: this behaviour can be overridden by either
4019 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
4020 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
4021 X509_supported_extension() has also been added which returns 1 if a
4022 particular extension is supported.
4025 *) Modify the behaviour of EVP cipher functions in similar way to digests
4026 to retain compatibility with existing code.
4029 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
4030 compatibility with existing code. In particular the 'ctx' parameter does
4031 not have to be to be initialized before the call to EVP_DigestInit() and
4032 it is tidied up after a call to EVP_DigestFinal(). New function
4033 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
4034 EVP_MD_CTX_copy() changed to not require the destination to be
4035 initialized valid and new function EVP_MD_CTX_copy_ex() added which
4036 requires the destination to be valid.
4038 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
4039 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
4042 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
4043 so that complete 'Handshake' protocol structures are kept in memory
4044 instead of overwriting 'msg_type' and 'length' with 'body' data.
4047 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
4048 [Massimo Santin via Richard Levitte]
4050 *) Major restructuring to the underlying ENGINE code. This includes
4051 reduction of linker bloat, separation of pure "ENGINE" manipulation
4052 (initialisation, etc) from functionality dealing with implementations
4053 of specific crypto iterfaces. This change also introduces integrated
4054 support for symmetric ciphers and digest implementations - so ENGINEs
4055 can now accelerate these by providing EVP_CIPHER and EVP_MD
4056 implementations of their own. This is detailed in crypto/engine/README
4057 as it couldn't be adequately described here. However, there are a few
4058 API changes worth noting - some RSA, DSA, DH, and RAND functions that
4059 were changed in the original introduction of ENGINE code have now
4060 reverted back - the hooking from this code to ENGINE is now a good
4061 deal more passive and at run-time, operations deal directly with
4062 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
4063 dereferencing through an ENGINE pointer any more. Also, the ENGINE
4064 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
4065 they were not being used by the framework as there is no concept of a
4066 BIGNUM_METHOD and they could not be generalised to the new
4067 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
4068 ENGINE_cpy() has been removed as it cannot be consistently defined in
4072 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
4075 *) Change mkdef.pl to sort symbols that get the same entry number,
4076 and make sure the automatically generated functions ERR_load_*
4077 become part of libeay.num as well.
4080 *) New function SSL_renegotiate_pending(). This returns true once
4081 renegotiation has been requested (either SSL_renegotiate() call
4082 or HelloRequest/ClientHello receveived from the peer) and becomes
4083 false once a handshake has been completed.
4084 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
4085 sends a HelloRequest, but does not ensure that a handshake takes
4086 place. SSL_renegotiate_pending() is useful for checking if the
4087 client has followed the request.)
4090 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
4091 By default, clients may request session resumption even during
4092 renegotiation (if session ID contexts permit); with this option,
4093 session resumption is possible only in the first handshake.
4095 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
4096 more bits available for options that should not be part of
4097 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
4100 *) Add some demos for certificate and certificate request creation.
4103 *) Make maximum certificate chain size accepted from the peer application
4104 settable (SSL*_get/set_max_cert_list()), as proposed by
4105 "Douglas E. Engert" <deengert@anl.gov>.
4108 *) Add support for shared libraries for Unixware-7
4109 (Boyd Lynn Gerber <gerberb@zenez.com>).
4112 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
4113 be done prior to destruction. Use this to unload error strings from
4114 ENGINEs that load their own error strings. NB: This adds two new API
4115 functions to "get" and "set" this destroy handler in an ENGINE.
4118 *) Alter all existing ENGINE implementations (except "openssl" and
4119 "openbsd") to dynamically instantiate their own error strings. This
4120 makes them more flexible to be built both as statically-linked ENGINEs
4121 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
4122 Also, add stub code to each that makes building them as self-contained
4123 shared-libraries easier (see README.ENGINE).
4126 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
4127 implementations into applications that are completely implemented in
4128 self-contained shared-libraries. The "dynamic" ENGINE exposes control
4129 commands that can be used to configure what shared-library to load and
4130 to control aspects of the way it is handled. Also, made an update to
4131 the README.ENGINE file that brings its information up-to-date and
4132 provides some information and instructions on the "dynamic" ENGINE
4133 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4136 *) Make it possible to unload ranges of ERR strings with a new
4137 "ERR_unload_strings" function.
4140 *) Add a copy() function to EVP_MD.
4143 *) Make EVP_MD routines take a context pointer instead of just the
4144 md_data void pointer.
4147 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4148 that the digest can only process a single chunk of data
4149 (typically because it is provided by a piece of
4150 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4151 is only going to provide a single chunk of data, and hence the
4152 framework needn't accumulate the data for oneshot drivers.
4155 *) As with "ERR", make it possible to replace the underlying "ex_data"
4156 functions. This change also alters the storage and management of global
4157 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4158 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4159 index counters. The API functions that use this state have been changed
4160 to take a "class_index" rather than pointers to the class's local STACK
4161 and counter, and there is now an API function to dynamically create new
4162 classes. This centralisation allows us to (a) plug a lot of the
4163 thread-safety problems that existed, and (b) makes it possible to clean
4164 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4165 such data would previously have always leaked in application code and
4166 workarounds were in place to make the memory debugging turn a blind eye
4167 to it. Application code that doesn't use this new function will still
4168 leak as before, but their memory debugging output will announce it now
4169 rather than letting it slide.
4171 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4172 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4173 has a return value to indicate success or failure.
4176 *) Make it possible to replace the underlying "ERR" functions such that the
4177 global state (2 LHASH tables and 2 locks) is only used by the "default"
4178 implementation. This change also adds two functions to "get" and "set"
4179 the implementation prior to it being automatically set the first time
4180 any other ERR function takes place. Ie. an application can call "get",
4181 pass the return value to a module it has just loaded, and that module
4182 can call its own "set" function using that value. This means the
4183 module's "ERR" operations will use (and modify) the error state in the
4184 application and not in its own statically linked copy of OpenSSL code.
4187 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4188 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4189 the operation, and provides a more encapsulated way for external code
4190 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4191 to use these functions rather than manually incrementing the counts.
4193 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4196 *) Add EVP test program.
4199 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4202 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4203 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4204 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4205 These allow a CRL to be built without having to access X509_CRL fields
4206 directly. Modify 'ca' application to use new functions.
4209 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4210 bug workarounds. Rollback attack detection is a security feature.
4211 The problem will only arise on OpenSSL servers when TLSv1 is not
4212 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4213 Software authors not wanting to support TLSv1 will have special reasons
4214 for their choice and can explicitly enable this option.
4215 [Bodo Moeller, Lutz Jaenicke]
4217 *) Rationalise EVP so it can be extended: don't include a union of
4218 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4219 (similar to those existing for EVP_CIPHER_CTX).
4224 EVP_MD_CTX_init(&md); /* new function call */
4225 EVP_DigestInit(&md, EVP_sha1());
4226 EVP_DigestUpdate(&md, in, len);
4227 EVP_DigestFinal(&md, out, NULL);
4228 EVP_MD_CTX_cleanup(&md); /* new function call */
4232 *) Make DES key schedule conform to the usual scheme, as well as
4233 correcting its structure. This means that calls to DES functions
4234 now have to pass a pointer to a des_key_schedule instead of a
4235 plain des_key_schedule (which was actually always a pointer
4238 des_key_schedule ks;
4240 des_set_key_checked(..., &ks);
4241 des_ncbc_encrypt(..., &ks, ...);
4243 (Note that a later change renames 'des_...' into 'DES_...'.)
4246 *) Initial reduction of linker bloat: the use of some functions, such as
4247 PEM causes large amounts of unused functions to be linked in due to
4248 poor organisation. For example pem_all.c contains every PEM function
4249 which has a knock on effect of linking in large amounts of (unused)
4250 ASN1 code. Grouping together similar functions and splitting unrelated
4251 functions prevents this.
4254 *) Cleanup of EVP macros.
4257 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4258 correct _ecb suffix.
4261 *) Add initial OCSP responder support to ocsp application. The
4262 revocation information is handled using the text based index
4263 use by the ca application. The responder can either handle
4264 requests generated internally, supplied in files (for example
4265 via a CGI script) or using an internal minimal server.
4268 *) Add configuration choices to get zlib compression for TLS.
4271 *) Changes to Kerberos SSL for RFC 2712 compliance:
4272 1. Implemented real KerberosWrapper, instead of just using
4273 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4274 2. Implemented optional authenticator field of KerberosWrapper.
4276 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4277 and authenticator structs; see crypto/krb5/.
4279 Generalized Kerberos calls to support multiple Kerberos libraries.
4280 [Vern Staats <staatsvr@asc.hpc.mil>,
4281 Jeffrey Altman <jaltman@columbia.edu>
4282 via Richard Levitte]
4284 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4285 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4286 values for each of the key sizes rather than having just
4287 parameters (and 'speed' generating keys each time).
4290 *) Speed up EVP routines.
4293 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4294 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4295 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4296 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4298 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4299 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4300 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4303 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4305 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4308 *) Added the OS2-EMX target.
4309 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4311 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4312 to support NCONF routines in extension code. New function CONF_set_nconf()
4313 to allow functions which take an NCONF to also handle the old LHASH
4314 structure: this means that the old CONF compatible routines can be
4315 retained (in particular wrt extensions) without having to duplicate the
4316 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4319 *) Enhance the general user interface with mechanisms for inner control
4320 and with possibilities to have yes/no kind of prompts.
4323 *) Change all calls to low level digest routines in the library and
4324 applications to use EVP. Add missing calls to HMAC_cleanup() and
4325 don't assume HMAC_CTX can be copied using memcpy().
4326 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4328 *) Add the possibility to control engines through control names but with
4329 arbitrary arguments instead of just a string.
4330 Change the key loaders to take a UI_METHOD instead of a callback
4331 function pointer. NOTE: this breaks binary compatibility with earlier
4332 versions of OpenSSL [engine].
4333 Adapt the nCipher code for these new conditions and add a card insertion
4337 *) Enhance the general user interface with mechanisms to better support
4338 dialog box interfaces, application-defined prompts, the possibility
4339 to use defaults (for example default passwords from somewhere else)
4340 and interrupts/cancellations.
4343 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4344 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4347 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4348 tidy up some unnecessarily weird code in 'sk_new()').
4349 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4351 *) Change the key loading routines for ENGINEs to use the same kind
4352 callback (pem_password_cb) as all other routines that need this
4356 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4357 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4358 than this minimum value is recommended.
4361 *) New random seeder for OpenVMS, using the system process statistics
4362 that are easily reachable.
4365 *) Windows apparently can't transparently handle global
4366 variables defined in DLLs. Initialisations such as:
4368 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4370 wont compile. This is used by the any applications that need to
4371 declare their own ASN1 modules. This was fixed by adding the option
4372 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4373 needed for static libraries under Win32.
4376 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4377 setting of purpose and trust fields. New X509_STORE trust and
4378 purpose functions and tidy up setting in other SSL functions.
4381 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4382 structure. These are inherited by X509_STORE_CTX when it is
4383 initialised. This allows various defaults to be set in the
4384 X509_STORE structure (such as flags for CRL checking and custom
4385 purpose or trust settings) for functions which only use X509_STORE_CTX
4386 internally such as S/MIME.
4388 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4389 trust settings if they are not set in X509_STORE. This allows X509_STORE
4390 purposes and trust (in S/MIME for example) to override any set by default.
4392 Add command line options for CRL checking to smime, s_client and s_server
4396 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4397 are set then the CRL is looked up in the X509_STORE structure and
4398 its validity and signature checked, then if the certificate is found
4399 in the CRL the verify fails with a revoked error.
4401 Various new CRL related callbacks added to X509_STORE_CTX structure.
4403 Command line options added to 'verify' application to support this.
4405 This needs some additional work, such as being able to handle multiple
4406 CRLs with different times, extension based lookup (rather than just
4407 by subject name) and ultimately more complete V2 CRL extension
4411 *) Add a general user interface API (crypto/ui/). This is designed
4412 to replace things like des_read_password and friends (backward
4413 compatibility functions using this new API are provided).
4414 The purpose is to remove prompting functions from the DES code
4415 section as well as provide for prompting through dialog boxes in
4416 a window system and the like.
4419 *) Add "ex_data" support to ENGINE so implementations can add state at a
4420 per-structure level rather than having to store it globally.
4423 *) Make it possible for ENGINE structures to be copied when retrieved by
4424 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4425 This causes the "original" ENGINE structure to act like a template,
4426 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4427 operational state can be localised to each ENGINE structure, despite the
4428 fact they all share the same "methods". New ENGINE structures returned in
4429 this case have no functional references and the return value is the single
4430 structural reference. This matches the single structural reference returned
4431 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4435 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4436 needs to match any other type at all we need to manually clear the
4440 *) Changes to the "openssl engine" utility to include;
4441 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4442 about an ENGINE's available control commands.
4443 - executing control commands from command line arguments using the
4444 '-pre' and '-post' switches. '-post' is only used if '-t' is
4445 specified and the ENGINE is successfully initialised. The syntax for
4446 the individual commands are colon-separated, for example;
4447 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4450 *) New dynamic control command support for ENGINEs. ENGINEs can now
4451 declare their own commands (numbers), names (strings), descriptions,
4452 and input types for run-time discovery by calling applications. A
4453 subset of these commands are implicitly classed as "executable"
4454 depending on their input type, and only these can be invoked through
4455 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4456 can be based on user input, config files, etc). The distinction is
4457 that "executable" commands cannot return anything other than a boolean
4458 result and can only support numeric or string input, whereas some
4459 discoverable commands may only be for direct use through
4460 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4461 pointers, or other custom uses. The "executable" commands are to
4462 support parameterisations of ENGINE behaviour that can be
4463 unambiguously defined by ENGINEs and used consistently across any
4464 OpenSSL-based application. Commands have been added to all the
4465 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4466 control over shared-library paths without source code alterations.
4469 *) Changed all ENGINE implementations to dynamically allocate their
4470 ENGINEs rather than declaring them statically. Apart from this being
4471 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4472 this also allows the implementations to compile without using the
4473 internal engine_int.h header.
4476 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4477 'const' value. Any code that should be able to modify a RAND_METHOD
4478 should already have non-const pointers to it (ie. they should only
4479 modify their own ones).
4482 *) Made a variety of little tweaks to the ENGINE code.
4483 - "atalla" and "ubsec" string definitions were moved from header files
4484 to C code. "nuron" string definitions were placed in variables
4485 rather than hard-coded - allowing parameterisation of these values
4486 later on via ctrl() commands.
4487 - Removed unused "#if 0"'d code.
4488 - Fixed engine list iteration code so it uses ENGINE_free() to release
4489 structural references.
4490 - Constified the RAND_METHOD element of ENGINE structures.
4491 - Constified various get/set functions as appropriate and added
4492 missing functions (including a catch-all ENGINE_cpy that duplicates
4493 all ENGINE values onto a new ENGINE except reference counts/state).
4494 - Removed NULL parameter checks in get/set functions. Setting a method
4495 or function to NULL is a way of cancelling out a previously set
4496 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4497 and doesn't justify the extra error symbols and code.
4498 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4499 flags from engine_int.h to engine.h.
4500 - Changed prototypes for ENGINE handler functions (init(), finish(),
4501 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4504 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4505 to the algorithm using long division. The binary algorithm can be
4506 used only if the modulus is odd. On 32-bit systems, it is faster
4507 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4508 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4509 up to 450 bits. In 64-bit environments, the binary algorithm
4510 appears to be advantageous for much longer moduli; here we use it
4511 for moduli up to 2048 bits.
4514 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4515 could not support the combine flag in choice fields.
4518 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4519 extensions from a certificate request to the certificate.
4522 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4523 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4524 file: this allows the display of the certificate about to be
4525 signed to be customised, to allow certain fields to be included
4526 or excluded and extension details. The old system didn't display
4527 multicharacter strings properly, omitted fields not in the policy
4528 and couldn't display additional details such as extensions.
4531 *) Function EC_POINTs_mul for multiple scalar multiplication
4532 of an arbitrary number of elliptic curve points
4533 \sum scalars[i]*points[i],
4534 optionally including the generator defined for the EC_GROUP:
4535 scalar*generator + \sum scalars[i]*points[i].
4537 EC_POINT_mul is a simple wrapper function for the typical case
4538 that the point list has just one item (besides the optional
4542 *) First EC_METHODs for curves over GF(p):
4544 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4545 operations and provides various method functions that can also
4546 operate with faster implementations of modular arithmetic.
4548 EC_GFp_mont_method() reuses most functions that are part of
4549 EC_GFp_simple_method, but uses Montgomery arithmetic.
4551 [Bodo Moeller; point addition and point doubling
4552 implementation directly derived from source code provided by
4553 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4555 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4556 crypto/ec/ec_lib.c):
4558 Curves are EC_GROUP objects (with an optional group generator)
4559 based on EC_METHODs that are built into the library.
4561 Points are EC_POINT objects based on EC_GROUP objects.
4563 Most of the framework would be able to handle curves over arbitrary
4564 finite fields, but as there are no obvious types for fields other
4565 than GF(p), some functions are limited to that for now.
4568 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4569 that the file contains a complete HTTP response.
4572 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4573 change the def and num file printf format specifier from "%-40sXXX"
4574 to "%-39s XXX". The latter will always guarantee a space after the
4575 field while the former will cause them to run together if the field
4576 is 40 of more characters long.
4579 *) Constify the cipher and digest 'method' functions and structures
4580 and modify related functions to take constant EVP_MD and EVP_CIPHER
4584 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4585 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4588 *) Modify EVP_Digest*() routines so they now return values. Although the
4589 internal software routines can never fail additional hardware versions
4593 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4595 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4596 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4599 ERR_R_NESTED_ASN1_ERROR
4601 ERR_R_MISSING_ASN1_EOS
4602 were 4 .. 9, conflicting with
4603 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4605 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4606 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4608 Add new error code 'ERR_R_INTERNAL_ERROR'.
4611 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4615 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4616 sets the subject name for a new request or supersedes the
4617 subject name in a given request. Formats that can be parsed are
4618 'CN=Some Name, OU=myOU, C=IT'
4620 'CN=Some Name/OU=myOU/C=IT'.
4622 Add options '-batch' and '-verbose' to 'openssl req'.
4623 [Massimiliano Pala <madwolf@hackmasters.net>]
4625 *) Introduce the possibility to access global variables through
4626 functions on platform were that's the best way to handle exporting
4627 global variables in shared libraries. To enable this functionality,
4628 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4629 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4630 is normally done by Configure or something similar).
4632 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4633 in the source file (foo.c) like this:
4635 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4636 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4638 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4639 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4641 OPENSSL_DECLARE_GLOBAL(int,foo);
4642 #define foo OPENSSL_GLOBAL_REF(foo)
4643 OPENSSL_DECLARE_GLOBAL(double,bar);
4644 #define bar OPENSSL_GLOBAL_REF(bar)
4646 The #defines are very important, and therefore so is including the
4647 header file everywhere where the defined globals are used.
4649 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4650 of ASN.1 items, but that structure is a bit different.
4652 The largest change is in util/mkdef.pl which has been enhanced with
4653 better and easier to understand logic to choose which symbols should
4654 go into the Windows .def files as well as a number of fixes and code
4655 cleanup (among others, algorithm keywords are now sorted
4656 lexicographically to avoid constant rewrites).
4659 *) In BN_div() keep a copy of the sign of 'num' before writing the
4660 result to 'rm' because if rm==num the value will be overwritten
4661 and produce the wrong result if 'num' is negative: this caused
4662 problems with BN_mod() and BN_nnmod().
4665 *) Function OCSP_request_verify(). This checks the signature on an
4666 OCSP request and verifies the signer certificate. The signer
4667 certificate is just checked for a generic purpose and OCSP request
4671 *) Add OCSP_check_validity() function to check the validity of OCSP
4672 responses. OCSP responses are prepared in real time and may only
4673 be a few seconds old. Simply checking that the current time lies
4674 between thisUpdate and nextUpdate max reject otherwise valid responses
4675 caused by either OCSP responder or client clock inaccuracy. Instead
4676 we allow thisUpdate and nextUpdate to fall within a certain period of
4677 the current time. The age of the response can also optionally be
4678 checked. Two new options -validity_period and -status_age added to
4682 *) If signature or public key algorithm is unrecognized print out its
4683 OID rather that just UNKNOWN.
4686 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4687 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4688 ID to be generated from the issuer certificate alone which can then be
4689 passed to OCSP_id_issuer_cmp().
4692 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4693 ASN1 modules to export functions returning ASN1_ITEM pointers
4694 instead of the ASN1_ITEM structures themselves. This adds several
4695 new macros which allow the underlying ASN1 function/structure to
4696 be accessed transparently. As a result code should not use ASN1_ITEM
4697 references directly (such as &X509_it) but instead use the relevant
4698 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4699 use of the new ASN1 code on platforms where exporting structures
4700 is problematical (for example in shared libraries) but exporting
4701 functions returning pointers to structures is not.
4704 *) Add support for overriding the generation of SSL/TLS session IDs.
4705 These callbacks can be registered either in an SSL_CTX or per SSL.
4706 The purpose of this is to allow applications to control, if they wish,
4707 the arbitrary values chosen for use as session IDs, particularly as it
4708 can be useful for session caching in multiple-server environments. A
4709 command-line switch for testing this (and any client code that wishes
4710 to use such a feature) has been added to "s_server".
4711 [Geoff Thorpe, Lutz Jaenicke]
4713 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4714 of the form '#if defined(...) || defined(...) || ...' and
4715 '#if !defined(...) && !defined(...) && ...'. This also avoids
4716 the growing number of special cases it was previously handling.
4719 *) Make all configuration macros available for application by making
4720 sure they are available in opensslconf.h, by giving them names starting
4721 with "OPENSSL_" to avoid conflicts with other packages and by making
4722 sure e_os2.h will cover all platform-specific cases together with
4724 Additionally, it is now possible to define configuration/platform-
4725 specific names (called "system identities"). In the C code, these
4726 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4727 macro with the name beginning with "OPENSSL_SYS_", which is determined
4728 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4732 *) New option -set_serial to 'req' and 'x509' this allows the serial
4733 number to use to be specified on the command line. Previously self
4734 signed certificates were hard coded with serial number 0 and the
4735 CA options of 'x509' had to use a serial number in a file which was
4739 *) New options to 'ca' utility to support V2 CRL entry extensions.
4740 Currently CRL reason, invalidity date and hold instruction are
4741 supported. Add new CRL extensions to V3 code and some new objects.
4744 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4745 disable standard block padding (aka PKCS#5 padding) in the EVP
4746 API, which was previously mandatory. This means that the data is
4747 not padded in any way and so the total length much be a multiple
4748 of the block size, otherwise an error occurs.
4751 *) Initial (incomplete) OCSP SSL support.
4754 *) New function OCSP_parse_url(). This splits up a URL into its host,
4755 port and path components: primarily to parse OCSP URLs. New -url
4756 option to ocsp utility.
4759 *) New nonce behavior. The return value of OCSP_check_nonce() now
4760 reflects the various checks performed. Applications can decide
4761 whether to tolerate certain situations such as an absent nonce
4762 in a response when one was present in a request: the ocsp application
4763 just prints out a warning. New function OCSP_add1_basic_nonce()
4764 this is to allow responders to include a nonce in a response even if
4765 the request is nonce-less.
4768 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4769 skipped when using openssl x509 multiple times on a single input file,
4770 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4773 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4774 set string type: to handle setting ASN1_TIME structures. Fix ca
4775 utility to correctly initialize revocation date of CRLs.
4778 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4779 the clients preferred ciphersuites and rather use its own preferences.
4780 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4781 Internet Explorer by ensuring unchanged hash method during stepup.
4782 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4785 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4786 to aes and add a new 'exist' option to print out symbols that don't
4790 *) Additional options to ocsp utility to allow flags to be set and
4791 additional certificates supplied.
4794 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4795 OCSP client a number of certificate to only verify the response
4799 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4800 handle the new API. Currently only ECB, CBC modes supported. Add new
4803 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4804 Encryption Standard (AES) Ciphersuites for Transport Layer
4805 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4806 not enabled by default and were not part of the "ALL" ciphersuite
4807 alias because they were not yet official; they could be
4808 explicitly requested by specifying the "AESdraft" ciphersuite
4809 group alias. In the final release of OpenSSL 0.9.7, the group
4810 alias is called "AES" and is part of "ALL".)
4811 [Ben Laurie, Steve Henson, Bodo Moeller]
4813 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4814 request to response.
4817 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4818 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4819 extract information from a certificate request. OCSP_response_create()
4820 creates a response and optionally adds a basic response structure.
4821 OCSP_basic_add1_status() adds a complete single response to a basic
4822 response and returns the OCSP_SINGLERESP structure just added (to allow
4823 extensions to be included for example). OCSP_basic_add1_cert() adds a
4824 certificate to a basic response and OCSP_basic_sign() signs a basic
4825 response with various flags. New helper functions ASN1_TIME_check()
4826 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4827 (converts ASN1_TIME to GeneralizedTime).
4830 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4831 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4832 structure from a certificate. X509_pubkey_digest() digests the public_key
4833 contents: this is used in various key identifiers.
4836 *) Make sk_sort() tolerate a NULL argument.
4837 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4839 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4840 passed by the function are trusted implicitly. If any of them signed the
4841 response then it is assumed to be valid and is not verified.
4844 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4845 to data. This was previously part of the PKCS7 ASN1 code. This
4846 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4847 [Steve Henson, reported by Kenneth R. Robinette
4848 <support@securenetterm.com>]
4850 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4851 routines: without these tracing memory leaks is very painful.
4852 Fix leaks in PKCS12 and PKCS7 routines.
4855 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4856 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4857 effectively meant GeneralizedTime would never be used. Now it
4858 is initialised to -1 but X509_time_adj() now has to check the value
4859 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4860 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4861 [Steve Henson, reported by Kenneth R. Robinette
4862 <support@securenetterm.com>]
4864 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4865 result in a zero length in the ASN1_INTEGER structure which was
4866 not consistent with the structure when d2i_ASN1_INTEGER() was used
4867 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4868 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4869 where it did not print out a minus for negative ASN1_INTEGER.
4872 *) Add summary printout to ocsp utility. The various functions which
4873 convert status values to strings have been renamed to:
4874 OCSP_response_status_str(), OCSP_cert_status_str() and
4875 OCSP_crl_reason_str() and are no longer static. New options
4876 to verify nonce values and to disable verification. OCSP response
4877 printout format cleaned up.
4880 *) Add additional OCSP certificate checks. These are those specified
4881 in RFC2560. This consists of two separate checks: the CA of the
4882 certificate being checked must either be the OCSP signer certificate
4883 or the issuer of the OCSP signer certificate. In the latter case the
4884 OCSP signer certificate must contain the OCSP signing extended key
4885 usage. This check is performed by attempting to match the OCSP
4886 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4887 in the OCSP_CERTID structures of the response.
4890 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4891 and related routines. This uses the standard OpenSSL certificate
4892 verify routines to perform initial checks (just CA validity) and
4893 to obtain the certificate chain. Then additional checks will be
4894 performed on the chain. Currently the root CA is checked to see
4895 if it is explicitly trusted for OCSP signing. This is used to set
4896 a root CA as a global signing root: that is any certificate that
4897 chains to that CA is an acceptable OCSP signing certificate.
4900 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4901 extensions from a separate configuration file.
4902 As when reading extensions from the main configuration file,
4903 the '-extensions ...' option may be used for specifying the
4905 [Massimiliano Pala <madwolf@comune.modena.it>]
4907 *) New OCSP utility. Allows OCSP requests to be generated or
4908 read. The request can be sent to a responder and the output
4909 parsed, outputed or printed in text form. Not complete yet:
4910 still needs to check the OCSP response validity.
4913 *) New subcommands for 'openssl ca':
4914 'openssl ca -status <serial>' prints the status of the cert with
4915 the given serial number (according to the index file).
4916 'openssl ca -updatedb' updates the expiry status of certificates
4918 [Massimiliano Pala <madwolf@comune.modena.it>]
4920 *) New '-newreq-nodes' command option to CA.pl. This is like
4921 '-newreq', but calls 'openssl req' with the '-nodes' option
4922 so that the resulting key is not encrypted.
4923 [Damien Miller <djm@mindrot.org>]
4925 *) New configuration for the GNU Hurd.
4926 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4928 *) Initial code to implement OCSP basic response verify. This
4929 is currently incomplete. Currently just finds the signer's
4930 certificate and verifies the signature on the response.
4933 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4934 value of OPENSSLDIR. This is available via the new '-d' option
4935 to 'openssl version', and is also included in 'openssl version -a'.
4938 *) Allowing defining memory allocation callbacks that will be given
4939 file name and line number information in additional arguments
4940 (a const char* and an int). The basic functionality remains, as
4941 well as the original possibility to just replace malloc(),
4942 realloc() and free() by functions that do not know about these
4943 additional arguments. To register and find out the current
4944 settings for extended allocation functions, the following
4945 functions are provided:
4947 CRYPTO_set_mem_ex_functions
4948 CRYPTO_set_locked_mem_ex_functions
4949 CRYPTO_get_mem_ex_functions
4950 CRYPTO_get_locked_mem_ex_functions
4952 These work the same way as CRYPTO_set_mem_functions and friends.
4953 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4954 extended allocation function is enabled.
4955 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4956 a conventional allocation function is enabled.
4957 [Richard Levitte, Bodo Moeller]
4959 *) Finish off removing the remaining LHASH function pointer casts.
4960 There should no longer be any prototype-casting required when using
4961 the LHASH abstraction, and any casts that remain are "bugs". See
4962 the callback types and macros at the head of lhash.h for details
4963 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4966 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4967 If /dev/[u]random devices are not available or do not return enough
4968 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4970 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4971 /etc/entropy will be queried once each in this sequence, quering stops
4972 when enough entropy was collected without querying more sockets.
4975 *) Change the Unix RAND_poll() variant to be able to poll several
4976 random devices, as specified by DEVRANDOM, until a sufficient amount
4977 of data has been collected. We spend at most 10 ms on each file
4978 (select timeout) and read in non-blocking mode. DEVRANDOM now
4979 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4980 (previously it was just the string "/dev/urandom"), so on typical
4981 platforms the 10 ms delay will never occur.
4982 Also separate out the Unix variant to its own file, rand_unix.c.
4983 For VMS, there's a currently-empty rand_vms.c.
4986 *) Move OCSP client related routines to ocsp_cl.c. These
4987 provide utility functions which an application needing
4988 to issue a request to an OCSP responder and analyse the
4989 response will typically need: as opposed to those which an
4990 OCSP responder itself would need which will be added later.
4992 OCSP_request_sign() signs an OCSP request with an API similar
4993 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4994 response. OCSP_response_get1_basic() extracts basic response
4995 from response. OCSP_resp_find_status(): finds and extracts status
4996 information from an OCSP_CERTID structure (which will be created
4997 when the request structure is built). These are built from lower
4998 level functions which work on OCSP_SINGLERESP structures but
4999 wont normally be used unless the application wishes to examine
5000 extensions in the OCSP response for example.
5002 Replace nonce routines with a pair of functions.
5003 OCSP_request_add1_nonce() adds a nonce value and optionally
5004 generates a random value. OCSP_check_nonce() checks the
5005 validity of the nonce in an OCSP response.
5008 *) Change function OCSP_request_add() to OCSP_request_add0_id().
5009 This doesn't copy the supplied OCSP_CERTID and avoids the
5010 need to free up the newly created id. Change return type
5011 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
5012 This can then be used to add extensions to the request.
5013 Deleted OCSP_request_new(), since most of its functionality
5014 is now in OCSP_REQUEST_new() (and the case insensitive name
5015 clash) apart from the ability to set the request name which
5016 will be added elsewhere.
5019 *) Update OCSP API. Remove obsolete extensions argument from
5020 various functions. Extensions are now handled using the new
5021 OCSP extension code. New simple OCSP HTTP function which
5022 can be used to send requests and parse the response.
5025 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
5026 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
5027 uses the special reorder version of SET OF to sort the attributes
5028 and reorder them to match the encoded order. This resolves a long
5029 standing problem: a verify on a PKCS7 structure just after signing
5030 it used to fail because the attribute order did not match the
5031 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
5032 it uses the received order. This is necessary to tolerate some broken
5033 software that does not order SET OF. This is handled by encoding
5034 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
5035 to produce the required SET OF.
5038 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
5039 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
5040 files to get correct declarations of the ASN.1 item variables.
5043 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
5044 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
5045 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
5046 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
5047 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
5048 ASN1_ITEM and no wrapper functions.
5051 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
5052 replace the old function pointer based I/O routines. Change most of
5053 the *_d2i_bio() and *_d2i_fp() functions to use these.
5056 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
5057 lines, recognice more "algorithms" that can be deselected, and make
5058 it complain about algorithm deselection that isn't recognised.
5061 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
5062 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
5063 to use new functions. Add NO_ASN1_OLD which can be set to remove
5064 some old style ASN1 functions: this can be used to determine if old
5065 code will still work when these eventually go away.
5068 *) New extension functions for OCSP structures, these follow the
5069 same conventions as certificates and CRLs.
5072 *) New function X509V3_add1_i2d(). This automatically encodes and
5073 adds an extension. Its behaviour can be customised with various
5074 flags to append, replace or delete. Various wrappers added for
5075 certifcates and CRLs.
5078 *) Fix to avoid calling the underlying ASN1 print routine when
5079 an extension cannot be parsed. Correct a typo in the
5080 OCSP_SERVICELOC extension. Tidy up print OCSP format.
5083 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
5084 entries for variables.
5087 *) Add functionality to apps/openssl.c for detecting locking
5088 problems: As the program is single-threaded, all we have
5089 to do is register a locking callback using an array for
5090 storing which locks are currently held by the program.
5093 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
5094 SSL_get_ex_data_X509_STORE_idx(), which is used in
5095 ssl_verify_cert_chain() and thus can be called at any time
5096 during TLS/SSL handshakes so that thread-safety is essential.
5097 Unfortunately, the ex_data design is not at all suited
5098 for multi-threaded use, so it probably should be abolished.
5101 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
5102 [Broadcom, tweaked and integrated by Geoff Thorpe]
5104 *) Move common extension printing code to new function
5105 X509V3_print_extensions(). Reorganise OCSP print routines and
5106 implement some needed OCSP ASN1 functions. Add OCSP extensions.
5109 *) New function X509_signature_print() to remove duplication in some
5113 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
5114 set (this was treated exactly the same as SET OF previously). This
5115 is used to reorder the STACK representing the structure to match the
5116 encoding. This will be used to get round a problem where a PKCS7
5117 structure which was signed could not be verified because the STACK
5118 order did not reflect the encoded order.
5121 *) Reimplement the OCSP ASN1 module using the new code.
5124 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
5125 for its ASN1 operations. The old style function pointers still exist
5126 for now but they will eventually go away.
5129 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
5130 completely replaces the old ASN1 functionality with a table driven
5131 encoder and decoder which interprets an ASN1_ITEM structure describing
5132 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5133 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5134 has also been converted to the new form.
5137 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5138 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5139 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5140 for negative moduli.
5143 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5144 of not touching the result's sign bit.
5147 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5151 *) Changed the LHASH code to use prototypes for callbacks, and created
5152 macros to declare and implement thin (optionally static) functions
5153 that provide type-safety and avoid function pointer casting for the
5154 type-specific callbacks.
5157 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5159 [Veers Staats <staatsvr@asc.hpc.mil>,
5160 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5162 *) Reformat the FAQ so the different questions and answers can be divided
5163 in sections depending on the subject.
5166 *) Have the zlib compression code load ZLIB.DLL dynamically under
5170 *) New function BN_mod_sqrt for computing square roots modulo a prime
5171 (using the probabilistic Tonelli-Shanks algorithm unless
5172 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5173 be handled deterministically).
5174 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5176 *) Make BN_mod_inverse faster by explicitly handling small quotients
5177 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5178 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5181 *) New function BN_kronecker.
5184 *) Fix BN_gcd so that it works on negative inputs; the result is
5185 positive unless both parameters are zero.
5186 Previously something reasonably close to an infinite loop was
5187 possible because numbers could be growing instead of shrinking
5188 in the implementation of Euclid's algorithm.
5191 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5192 sign of the number in question.
5194 Fix BN_is_word(a,w) to work correctly for w == 0.
5196 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5197 because its test if the absolute value of 'a' equals 'w'.
5198 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5199 it exists mostly for use in the implementations of BN_is_zero(),
5200 BN_is_one(), and BN_is_word().
5203 *) New function BN_swap.
5206 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5207 the exponentiation functions are more likely to produce reasonable
5208 results on negative inputs.
5211 *) Change BN_mod_mul so that the result is always non-negative.
5212 Previously, it could be negative if one of the factors was negative;
5213 I don't think anyone really wanted that behaviour.
5216 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5217 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5218 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5219 and add new functions:
5228 BN_mod_lshift1_quick
5232 These functions always generate non-negative results.
5234 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5235 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5237 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5238 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5239 be reduced modulo m.
5240 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5243 The following entry accidentily appeared in the CHANGES file
5244 distributed with OpenSSL 0.9.7. The modifications described in
5245 it do *not* apply to OpenSSL 0.9.7.
5247 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5248 was actually never needed) and in BN_mul(). The removal in BN_mul()
5249 required a small change in bn_mul_part_recursive() and the addition
5250 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5251 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5252 bn_sub_words() and bn_add_words() except they take arrays with
5257 *) In 'openssl passwd', verify passwords read from the terminal
5258 unless the '-salt' option is used (which usually means that
5259 verification would just waste user's time since the resulting
5260 hash is going to be compared with some given password hash)
5261 or the new '-noverify' option is used.
5263 This is an incompatible change, but it does not affect
5264 non-interactive use of 'openssl passwd' (passwords on the command
5265 line, '-stdin' option, '-in ...' option) and thus should not
5269 *) Remove all references to RSAref, since there's no more need for it.
5272 *) Make DSO load along a path given through an environment variable
5273 (SHLIB_PATH) with shl_load().
5276 *) Constify the ENGINE code as a result of BIGNUM constification.
5277 Also constify the RSA code and most things related to it. In a
5278 few places, most notable in the depth of the ASN.1 code, ugly
5279 casts back to non-const were required (to be solved at a later
5283 *) Make it so the openssl application has all engines loaded by default.
5286 *) Constify the BIGNUM routines a little more.
5289 *) Add the following functions:
5291 ENGINE_load_cswift()
5293 ENGINE_load_atalla()
5295 ENGINE_load_builtin_engines()
5297 That way, an application can itself choose if external engines that
5298 are built-in in OpenSSL shall ever be used or not. The benefit is
5299 that applications won't have to be linked with libdl or other dso
5300 libraries unless it's really needed.
5302 Changed 'openssl engine' to load all engines on demand.
5303 Changed the engine header files to avoid the duplication of some
5304 declarations (they differed!).
5307 *) 'openssl engine' can now list capabilities.
5310 *) Better error reporting in 'openssl engine'.
5313 *) Never call load_dh_param(NULL) in s_server.
5316 *) Add engine application. It can currently list engines by name and
5317 identity, and test if they are actually available.
5320 *) Improve RPM specification file by forcing symbolic linking and making
5321 sure the installed documentation is also owned by root.root.
5322 [Damien Miller <djm@mindrot.org>]
5324 *) Give the OpenSSL applications more possibilities to make use of
5325 keys (public as well as private) handled by engines.
5328 *) Add OCSP code that comes from CertCo.
5331 *) Add VMS support for the Rijndael code.
5334 *) Added untested support for Nuron crypto accelerator.
5337 *) Add support for external cryptographic devices. This code was
5338 previously distributed separately as the "engine" branch.
5339 [Geoff Thorpe, Richard Levitte]
5341 *) Rework the filename-translation in the DSO code. It is now possible to
5342 have far greater control over how a "name" is turned into a filename
5343 depending on the operating environment and any oddities about the
5344 different shared library filenames on each system.
5347 *) Support threads on FreeBSD-elf in Configure.
5350 *) Fix for SHA1 assembly problem with MASM: it produces
5351 warnings about corrupt line number information when assembling
5352 with debugging information. This is caused by the overlapping
5354 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5357 NCONF_get_number() has no error checking at all. As a replacement,
5358 NCONF_get_number_e() is defined (_e for "error checking") and is
5359 promoted strongly. The old NCONF_get_number is kept around for
5360 binary backward compatibility.
5361 Make it possible for methods to load from something other than a BIO,
5362 by providing a function pointer that is given a name instead of a BIO.
5363 For example, this could be used to load configuration data from an
5367 *) Fix for non blocking accept BIOs. Added new I/O special reason
5368 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5369 with non blocking I/O was not possible because no retry code was
5370 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5374 *) Added the beginnings of Rijndael support.
5377 *) Fix for bug in DirectoryString mask setting. Add support for
5378 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5379 to allow certificate printing to more controllable, additional
5380 'certopt' option to 'x509' to allow new printing options to be
5384 *) Clean old EAY MD5 hack from e_os.h.
5387 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5389 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5390 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5391 [Joe Orton, Steve Henson]
5393 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5395 *) Fix additional bug revealed by the NISCC test suite:
5397 Stop bug triggering large recursion when presented with
5398 certain ASN.1 tags (CVE-2003-0851)
5401 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5403 *) Fix various bugs revealed by running the NISCC test suite:
5405 Stop out of bounds reads in the ASN1 code when presented with
5406 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5408 If verify callback ignores invalid public key errors don't try to check
5409 certificate signature with the NULL public key.
5413 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5414 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5418 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5419 extra data after the compression methods not only for TLS 1.0
5420 but also for SSL 3.0 (as required by the specification).
5421 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5423 *) Change X509_certificate_type() to mark the key as exported/exportable
5424 when it's 512 *bits* long, not 512 bytes.
5427 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5429 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5430 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5431 a protocol version number mismatch like a decryption error
5432 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5435 *) Turn on RSA blinding by default in the default implementation
5436 to avoid a timing attack. Applications that don't want it can call
5437 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5438 They would be ill-advised to do so in most cases.
5439 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5441 *) Change RSA blinding code so that it works when the PRNG is not
5442 seeded (in this case, the secret RSA exponent is abused as
5443 an unpredictable seed -- if it is not unpredictable, there
5444 is no point in blinding anyway). Make RSA blinding thread-safe
5445 by remembering the creator's thread ID in rsa->blinding and
5446 having all other threads use local one-time blinding factors
5447 (this requires more computation than sharing rsa->blinding, but
5448 avoids excessive locking; and if an RSA object is not shared
5449 between threads, blinding will still be very fast).
5452 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5454 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5455 via timing by performing a MAC computation even if incorrrect
5456 block cipher padding has been found. This is a countermeasure
5457 against active attacks where the attacker has to distinguish
5458 between bad padding and a MAC verification error. (CVE-2003-0078)
5460 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5461 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5462 Martin Vuagnoux (EPFL, Ilion)]
5464 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5466 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5467 memory from it's contents. This is done with a counter that will
5468 place alternating values in each byte. This can be used to solve
5469 two issues: 1) the removal of calls to memset() by highly optimizing
5470 compilers, and 2) cleansing with other values than 0, since those can
5471 be read through on certain media, for example a swap space on disk.
5474 *) Bugfix: client side session caching did not work with external caching,
5475 because the session->cipher setting was not restored when reloading
5476 from the external cache. This problem was masked, when
5477 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5478 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5481 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5482 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5483 [Zeev Lieber <zeev-l@yahoo.com>]
5485 *) Undo an undocumented change introduced in 0.9.6e which caused
5486 repeated calls to OpenSSL_add_all_ciphers() and
5487 OpenSSL_add_all_digests() to be ignored, even after calling
5491 *) Change the default configuration reader to deal with last line not
5492 being properly terminated.
5495 *) Change X509_NAME_cmp() so it applies the special rules on handling
5496 DN values that are of type PrintableString, as well as RDNs of type
5497 emailAddress where the value has the type ia5String.
5498 [stefank@valicert.com via Richard Levitte]
5500 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5501 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5502 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5503 the bitwise-OR of the two for use by the majority of applications
5504 wanting this behaviour, and update the docs. The documented
5505 behaviour and actual behaviour were inconsistent and had been
5506 changing anyway, so this is more a bug-fix than a behavioural
5508 [Geoff Thorpe, diagnosed by Nadav Har'El]
5510 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5511 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5514 *) Fix initialization code race conditions in
5515 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5516 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5517 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5518 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5519 ssl2_get_cipher_by_char(),
5520 ssl3_get_cipher_by_char().
5521 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5523 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5524 the cached sessions are flushed, as the remove_cb() might use ex_data
5525 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5526 (see [openssl.org #212]).
5527 [Geoff Thorpe, Lutz Jaenicke]
5529 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5530 length, instead of the encoding length to d2i_ASN1_OBJECT.
5533 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5535 *) [In 0.9.6g-engine release:]
5536 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5537 [Lynn Gazis <lgazis@rainbow.com>]
5539 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5541 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5542 and get fix the header length calculation.
5543 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5544 Alon Kantor <alonk@checkpoint.com> (and others),
5547 *) Use proper error handling instead of 'assertions' in buffer
5548 overflow checks added in 0.9.6e. This prevents DoS (the
5549 assertions could call abort()).
5550 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5552 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5554 *) Add various sanity checks to asn1_get_length() to reject
5555 the ASN1 length bytes if they exceed sizeof(long), will appear
5556 negative or the content length exceeds the length of the
5558 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5560 *) Fix cipher selection routines: ciphers without encryption had no flags
5561 for the cipher strength set and where therefore not handled correctly
5562 by the selection routines (PR #130).
5565 *) Fix EVP_dsa_sha macro.
5569 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5570 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5571 that was added in OpenSSL 0.9.6d.
5573 As the countermeasure turned out to be incompatible with some
5574 broken SSL implementations, the new option is part of SSL_OP_ALL.
5575 SSL_OP_ALL is usually employed when compatibility with weird SSL
5576 implementations is desired (e.g. '-bugs' option to 's_client' and
5577 's_server'), so the new option is automatically set in many
5581 *) Changes in security patch:
5583 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5584 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5585 Air Force Materiel Command, USAF, under agreement number
5588 *) Add various sanity checks to asn1_get_length() to reject
5589 the ASN1 length bytes if they exceed sizeof(long), will appear
5590 negative or the content length exceeds the length of the
5591 supplied buffer. (CVE-2002-0659)
5592 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5594 *) Assertions for various potential buffer overflows, not known to
5596 [Ben Laurie (CHATS)]
5598 *) Various temporary buffers to hold ASCII versions of integers were
5599 too small for 64 bit platforms. (CVE-2002-0655)
5600 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5602 *) Remote buffer overflow in SSL3 protocol - an attacker could
5603 supply an oversized session ID to a client. (CVE-2002-0656)
5604 [Ben Laurie (CHATS)]
5606 *) Remote buffer overflow in SSL2 protocol - an attacker could
5607 supply an oversized client master key. (CVE-2002-0656)
5608 [Ben Laurie (CHATS)]
5610 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5612 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5613 encoded as NULL) with id-dsa-with-sha1.
5614 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5616 *) Check various X509_...() return values in apps/req.c.
5617 [Nils Larsch <nla@trustcenter.de>]
5619 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5620 an end-of-file condition would erronously be flagged, when the CRLF
5621 was just at the end of a processed block. The bug was discovered when
5622 processing data through a buffering memory BIO handing the data to a
5623 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5624 <ptsekov@syntrex.com> and Nedelcho Stanev.
5627 *) Implement a countermeasure against a vulnerability recently found
5628 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5629 before application data chunks to avoid the use of known IVs
5630 with data potentially chosen by the attacker.
5633 *) Fix length checks in ssl3_get_client_hello().
5636 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5637 to prevent ssl3_read_internal() from incorrectly assuming that
5638 ssl3_read_bytes() found application data while handshake
5639 processing was enabled when in fact s->s3->in_read_app_data was
5640 merely automatically cleared during the initial handshake.
5641 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5643 *) Fix object definitions for Private and Enterprise: they were not
5644 recognized in their shortname (=lowercase) representation. Extend
5645 obj_dat.pl to issue an error when using undefined keywords instead
5646 of silently ignoring the problem (Svenning Sorensen
5647 <sss@sss.dnsalias.net>).
5650 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5651 generators, i.e. generators other than 2 and 5. (Previously, the
5652 code did not properly initialise the 'add' and 'rem' values to
5653 BN_generate_prime().)
5655 In the new general case, we do not insist that 'generator' is
5656 actually a primitive root: This requirement is rather pointless;
5657 a generator of the order-q subgroup is just as good, if not
5661 *) Map new X509 verification errors to alerts. Discovered and submitted by
5662 Tom Wu <tom@arcot.com>.
5665 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5666 returning non-zero before the data has been completely received
5667 when using non-blocking I/O.
5668 [Bodo Moeller; problem pointed out by John Hughes]
5670 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5671 [Ben Laurie, Lutz Jaenicke]
5673 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5674 Yoram Zahavi <YoramZ@gilian.com>).
5677 *) Add information about CygWin 1.3 and on, and preserve proper
5678 configuration for the versions before that.
5679 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5681 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5682 check whether we deal with a copy of a session and do not delete from
5683 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5684 <izhar@checkpoint.com>.
5687 *) Do not store session data into the internal session cache, if it
5688 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5689 flag is set). Proposed by Aslam <aslam@funk.com>.
5692 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5696 *) [In 0.9.6d-engine release:]
5697 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5698 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5700 *) Add the configuration target linux-s390x.
5701 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5703 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5704 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5705 variable as an indication that a ClientHello message has been
5706 received. As the flag value will be lost between multiple
5707 invocations of ssl3_accept when using non-blocking I/O, the
5708 function may not be aware that a handshake has actually taken
5709 place, thus preventing a new session from being added to the
5712 To avoid this problem, we now set s->new_session to 2 instead of
5713 using a local variable.
5714 [Lutz Jaenicke, Bodo Moeller]
5716 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5717 if the SSL_R_LENGTH_MISMATCH error is detected.
5718 [Geoff Thorpe, Bodo Moeller]
5720 *) New 'shared_ldflag' column in Configure platform table.
5723 *) Fix EVP_CIPHER_mode macro.
5724 ["Dan S. Camper" <dan@bti.net>]
5726 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5727 type, we must throw them away by setting rr->length to 0.
5728 [D P Chang <dpc@qualys.com>]
5730 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5732 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5733 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5734 worked incorrectly for those cases where range = 10..._2 and
5735 3*range is two bits longer than range.)
5738 *) Only add signing time to PKCS7 structures if it is not already
5742 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5743 OBJ_ld_ce should be OBJ_id_ce.
5744 Also some ip-pda OIDs in crypto/objects/objects.txt were
5745 incorrect (cf. RFC 3039).
5746 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5748 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5749 returns early because it has nothing to do.
5750 [Andy Schneider <andy.schneider@bjss.co.uk>]
5752 *) [In 0.9.6c-engine release:]
5753 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5754 [Andy Schneider <andy.schneider@bjss.co.uk>]
5756 *) [In 0.9.6c-engine release:]
5757 Add support for Cryptographic Appliance's keyserver technology.
5758 (Use engine 'keyclient')
5759 [Cryptographic Appliances and Geoff Thorpe]
5761 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5762 is called via tools/c89.sh because arguments have to be
5763 rearranged (all '-L' options must appear before the first object
5765 [Richard Shapiro <rshapiro@abinitio.com>]
5767 *) [In 0.9.6c-engine release:]
5768 Add support for Broadcom crypto accelerator cards, backported
5770 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5772 *) [In 0.9.6c-engine release:]
5773 Add support for SureWare crypto accelerator cards from
5774 Baltimore Technologies. (Use engine 'sureware')
5775 [Baltimore Technologies and Mark Cox]
5777 *) [In 0.9.6c-engine release:]
5778 Add support for crypto accelerator cards from Accelerated
5779 Encryption Processing, www.aep.ie. (Use engine 'aep')
5780 [AEP Inc. and Mark Cox]
5782 *) Add a configuration entry for gcc on UnixWare.
5783 [Gary Benson <gbenson@redhat.com>]
5785 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5786 messages are stored in a single piece (fixed-length part and
5787 variable-length part combined) and fix various bugs found on the way.
5790 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5791 instead. BIO_gethostbyname() does not know what timeouts are
5792 appropriate, so entries would stay in cache even when they have
5794 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5796 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5797 faced with a pathologically small ClientHello fragment that does
5798 not contain client_version: Instead of aborting with an error,
5799 simply choose the highest available protocol version (i.e.,
5800 TLS 1.0 unless it is disabled). In practice, ClientHello
5801 messages are never sent like this, but this change gives us
5802 strictly correct behaviour at least for TLS.
5805 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5806 never resets s->method to s->ctx->method when called from within
5807 one of the SSL handshake functions.
5808 [Bodo Moeller; problem pointed out by Niko Baric]
5810 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5811 (sent using the client's version number) if client_version is
5812 smaller than the protocol version in use. Also change
5813 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5814 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5815 the client will at least see that alert.
5818 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5822 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5823 client receives HelloRequest while in a handshake.
5824 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5826 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5827 should end in 'break', not 'goto end' which circuments various
5828 cleanups done in state SSL_ST_OK. But session related stuff
5829 must be disabled for SSL_ST_OK in the case that we just sent a
5832 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5833 before just sending a HelloRequest.
5834 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5836 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5837 reveal whether illegal block cipher padding was found or a MAC
5838 verification error occured. (Neither SSLerr() codes nor alerts
5839 are directly visible to potential attackers, but the information
5840 may leak via logfiles.)
5842 Similar changes are not required for the SSL 2.0 implementation
5843 because the number of padding bytes is sent in clear for SSL 2.0,
5844 and the extra bytes are just ignored. However ssl/s2_pkt.c
5845 failed to verify that the purported number of padding bytes is in
5849 *) Add OpenUNIX-8 support including shared libraries
5850 (Boyd Lynn Gerber <gerberb@zenez.com>).
5853 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5854 'wristwatch attack' using huge encoding parameters (cf.
5855 James H. Manger's CRYPTO 2001 paper). Note that the
5856 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5857 encoding parameters and hence was not vulnerable.
5860 *) BN_sqr() bug fix.
5861 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5863 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5864 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5865 followed by modular reduction.
5866 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5868 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5869 equivalent based on BN_pseudo_rand() instead of BN_rand().
5872 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5873 This function was broken, as the check for a new client hello message
5874 to handle SGC did not allow these large messages.
5875 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5878 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5881 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5882 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5885 *) Rework the configuration and shared library support for Tru64 Unix.
5886 The configuration part makes use of modern compiler features and
5887 still retains old compiler behavior for those that run older versions
5888 of the OS. The shared library support part includes a variant that
5889 uses the RPATH feature, and is available through the special
5890 configuration target "alpha-cc-rpath", which will never be selected
5892 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5894 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5895 with the same message size as in ssl3_get_certificate_request().
5896 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5897 messages might inadvertently be reject as too long.
5898 [Petr Lampa <lampa@fee.vutbr.cz>]
5900 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5903 *) Modified SSL library such that the verify_callback that has been set
5904 specificly for an SSL object with SSL_set_verify() is actually being
5905 used. Before the change, a verify_callback set with this function was
5906 ignored and the verify_callback() set in the SSL_CTX at the time of
5907 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5908 to allow the necessary settings.
5911 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5912 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5913 done automatically (in contradiction to the requirements of the C
5914 standard). This made problems when used from OpenSSH.
5917 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5918 dh->length and always used
5920 BN_rand_range(priv_key, dh->p).
5922 BN_rand_range() is not necessary for Diffie-Hellman, and this
5923 specific range makes Diffie-Hellman unnecessarily inefficient if
5924 dh->length (recommended exponent length) is much smaller than the
5925 length of dh->p. We could use BN_rand_range() if the order of
5926 the subgroup was stored in the DH structure, but we only have
5931 BN_rand(priv_key, l, ...)
5933 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5939 RSA_eay_public_encrypt
5940 RSA_eay_private_decrypt
5941 RSA_eay_private_encrypt (signing)
5942 RSA_eay_public_decrypt (signature verification)
5944 (default implementations for RSA_public_encrypt,
5945 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5946 always reject numbers >= n.
5949 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5950 to synchronize access to 'locking_thread'. This is necessary on
5951 systems where access to 'locking_thread' (an 'unsigned long'
5952 variable) is not atomic.
5955 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5956 *before* setting the 'crypto_lock_rand' flag. The previous code had
5957 a race condition if 0 is a valid thread ID.
5958 [Travis Vitek <vitek@roguewave.com>]
5960 *) Add support for shared libraries under Irix.
5961 [Albert Chin-A-Young <china@thewrittenword.com>]
5963 *) Add configuration option to build on Linux on both big-endian and
5965 [Ralf Baechle <ralf@uni-koblenz.de>]
5967 *) Add the possibility to create shared libraries on HP-UX.
5970 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5972 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5973 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5974 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5975 PRNG state recovery was possible based on the output of
5976 one PRNG request appropriately sized to gain knowledge on
5977 'md' followed by enough consecutive 1-byte PRNG requests
5978 to traverse all of 'state'.
5980 1. When updating 'md_local' (the current thread's copy of 'md')
5981 during PRNG output generation, hash all of the previous
5982 'md_local' value, not just the half used for PRNG output.
5984 2. Make the number of bytes from 'state' included into the hash
5985 independent from the number of PRNG bytes requested.
5987 The first measure alone would be sufficient to avoid
5988 Markku-Juhani's attack. (Actually it had never occurred
5989 to me that the half of 'md_local' used for chaining was the
5990 half from which PRNG output bytes were taken -- I had always
5991 assumed that the secret half would be used.) The second
5992 measure makes sure that additional data from 'state' is never
5993 mixed into 'md_local' in small portions; this heuristically
5994 further strengthens the PRNG.
5997 *) Fix crypto/bn/asm/mips3.s.
6000 *) When only the key is given to "enc", the IV is undefined. Print out
6001 an error message in this case.
6004 *) Handle special case when X509_NAME is empty in X509 printing routines.
6007 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
6008 positive and less than q.
6011 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
6012 used: it isn't thread safe and the add_lock_callback should handle
6014 [Paul Rose <Paul.Rose@bridge.com>]
6016 *) Verify that incoming data obeys the block size in
6017 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
6021 [Ulf Möller, Bodo Möller]
6023 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
6024 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
6025 when fixing the server behaviour for backwards-compatible 'client
6026 hello' messages. (Note that the attack is impractical against
6027 SSL 3.0 and TLS 1.0 anyway because length and version checking
6028 means that the probability of guessing a valid ciphertext is
6029 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
6032 Before 0.9.5, the countermeasure (hide the error by generating a
6033 random 'decryption result') did not work properly because
6034 ERR_clear_error() was missing, meaning that SSL_get_error() would
6035 detect the supposedly ignored error.
6037 Both problems are now fixed.
6040 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
6041 (previously it was 1024).
6044 *) Fix for compatibility mode trust settings: ignore trust settings
6045 unless some valid trust or reject settings are present.
6048 *) Fix for blowfish EVP: its a variable length cipher.
6051 *) Fix various bugs related to DSA S/MIME verification. Handle missing
6052 parameters in DSA public key structures and return an error in the
6053 DSA routines if parameters are absent.
6056 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
6057 in the current directory if neither $RANDFILE nor $HOME was set.
6058 RAND_file_name() in 0.9.6a returned NULL in this case. This has
6059 caused some confusion to Windows users who haven't defined $HOME.
6060 Thus RAND_file_name() is changed again: e_os.h can define a
6061 DEFAULT_HOME, which will be used if $HOME is not set.
6062 For Windows, we use "C:"; on other platforms, we still require
6063 environment variables.
6065 *) Move 'if (!initialized) RAND_poll()' into regions protected by
6066 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
6067 having multiple threads call RAND_poll() concurrently.
6070 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
6071 combination of a flag and a thread ID variable.
6072 Otherwise while one thread is in ssleay_rand_bytes (which sets the
6073 flag), *other* threads can enter ssleay_add_bytes without obeying
6074 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
6075 that they do not hold after the first thread unsets add_do_not_lock).
6078 *) Change bctest again: '-x' expressions are not available in all
6082 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
6084 *) Fix a couple of memory leaks in PKCS7_dataDecode()
6085 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
6087 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
6088 the default extension for executables, if any. Also, make the perl
6089 scripts that use symlink() to test if it really exists and use "cp"
6090 if it doesn't. All this made OpenSSL compilable and installable in
6094 *) Fix for asn1_GetSequence() for indefinite length constructed data.
6095 If SEQUENCE is length is indefinite just set c->slen to the total
6096 amount of data available.
6097 [Steve Henson, reported by shige@FreeBSD.org]
6098 [This change does not apply to 0.9.7.]
6100 *) Change bctest to avoid here-documents inside command substitution
6101 (workaround for FreeBSD /bin/sh bug).
6102 For compatibility with Ultrix, avoid shell functions (introduced
6103 in the bctest version that searches along $PATH).
6106 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
6107 with des_encrypt() defined on some operating systems, like Solaris
6111 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
6112 On the Importance of Eliminating Errors in Cryptographic
6113 Computations, J. Cryptology 14 (2001) 2, 101-119,
6114 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
6117 *) MIPS assembler BIGNUM division bug fix.
6120 *) Disabled incorrect Alpha assembler code.
6123 *) Fix PKCS#7 decode routines so they correctly update the length
6124 after reading an EOC for the EXPLICIT tag.
6126 [This change does not apply to 0.9.7.]
6128 *) Fix bug in PKCS#12 key generation routines. This was triggered
6129 if a 3DES key was generated with a 0 initial byte. Include
6130 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6131 (but broken) behaviour.
6134 *) Enhance bctest to search for a working bc along $PATH and print
6136 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6138 *) Fix memory leaks in err.c: free err_data string if necessary;
6139 don't write to the wrong index in ERR_set_error_data.
6142 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6146 *) Replace rdtsc with _emit statements for VC++ version 5.
6147 [Jeremy Cooper <jeremy@baymoo.org>]
6149 *) Make it possible to reuse SSLv2 sessions.
6152 *) In copy_email() check for >= 0 as a return value for
6153 X509_NAME_get_index_by_NID() since 0 is a valid index.
6154 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6156 *) Avoid coredump with unsupported or invalid public keys by checking if
6157 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6158 PKCS7_verify() fails with non detached data.
6161 *) Don't use getenv in library functions when run as setuid/setgid.
6162 New function OPENSSL_issetugid().
6165 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6166 due to incorrect handling of multi-threading:
6168 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6170 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6172 3. Count how many times MemCheck_off() has been called so that
6173 nested use can be treated correctly. This also avoids
6174 inband-signalling in the previous code (which relied on the
6175 assumption that thread ID 0 is impossible).
6178 *) Add "-rand" option also to s_client and s_server.
6181 *) Fix CPU detection on Irix 6.x.
6182 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6183 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6185 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6188 [This change does not apply to 0.9.7.]
6190 *) Use the cached encoding of an X509_NAME structure rather than
6191 copying it. This is apparently the reason for the libsafe "errors"
6192 but the code is actually correct.
6195 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6196 Bleichenbacher's DSA attack.
6197 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6198 to be set and top=0 forces the highest bit to be set; top=-1 is new
6199 and leaves the highest bit random.
6200 [Ulf Moeller, Bodo Moeller]
6202 *) In the NCONF_...-based implementations for CONF_... queries
6203 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6204 a temporary CONF structure with the data component set to NULL
6205 (which gives segmentation faults in lh_retrieve).
6206 Instead, use NULL for the CONF pointer in CONF_get_string and
6207 CONF_get_number (which may use environment variables) and directly
6208 return NULL from CONF_get_section.
6211 *) Fix potential buffer overrun for EBCDIC.
6214 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6215 keyUsage if basicConstraints absent for a CA.
6218 *) Make SMIME_write_PKCS7() write mail header values with a format that
6219 is more generally accepted (no spaces before the semicolon), since
6220 some programs can't parse those values properly otherwise. Also make
6221 sure BIO's that break lines after each write do not create invalid
6225 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6226 macros previously used would not encode an empty SEQUENCE OF
6227 and break the signature.
6229 [This change does not apply to 0.9.7.]
6231 *) Zero the premaster secret after deriving the master secret in
6235 *) Add some EVP_add_digest_alias registrations (as found in
6236 OpenSSL_add_all_digests()) to SSL_library_init()
6237 aka OpenSSL_add_ssl_algorithms(). This provides improved
6238 compatibility with peers using X.509 certificates
6239 with unconventional AlgorithmIdentifier OIDs.
6242 *) Fix for Irix with NO_ASM.
6243 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6245 *) ./config script fixes.
6246 [Ulf Moeller, Richard Levitte]
6248 *) Fix 'openssl passwd -1'.
6251 *) Change PKCS12_key_gen_asc() so it can cope with non null
6252 terminated strings whose length is passed in the passlen
6253 parameter, for example from PEM callbacks. This was done
6254 by adding an extra length parameter to asc2uni().
6255 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6257 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6258 call failed, free the DSA structure.
6261 *) Fix to uni2asc() to cope with zero length Unicode strings.
6262 These are present in some PKCS#12 files.
6265 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6266 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6267 when writing a 32767 byte record.
6268 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6270 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6271 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6273 (RSA objects have a reference count access to which is protected
6274 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6275 so they are meant to be shared between threads.)
6276 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6277 "Reddie, Steven" <Steven.Reddie@ca.com>]
6279 *) Fix a deadlock in CRYPTO_mem_leaks().
6282 *) Use better test patterns in bntest.
6285 *) rand_win.c fix for Borland C.
6288 *) BN_rshift bugfix for n == 0.
6291 *) Add a 'bctest' script that checks for some known 'bc' bugs
6292 so that 'make test' does not abort just because 'bc' is broken.
6295 *) Store verify_result within SSL_SESSION also for client side to
6296 avoid potential security hole. (Re-used sessions on the client side
6297 always resulted in verify_result==X509_V_OK, not using the original
6298 result of the server certificate verification.)
6301 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6302 SSL3_RT_APPLICATION_DATA, return 0.
6303 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6307 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6308 releases, have been re-implemented by renaming the previous
6309 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6310 and ssl3_read_internal, respectively, and adding 'peek' parameters
6311 to them. The new ssl[23]_{read,peek} functions are calls to
6312 ssl[23]_read_internal with the 'peek' flag set appropriately.
6313 A 'peek' parameter has also been added to ssl3_read_bytes, which
6314 does the actual work for ssl3_read_internal.
6317 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6318 the method-specific "init()" handler. Also clean up ex_data after
6319 calling the method-specific "finish()" handler. Previously, this was
6320 happening the other way round.
6323 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6324 The previous value, 12, was not always sufficient for BN_mod_exp().
6327 *) Make sure that shared libraries get the internal name engine with
6328 the full version number and not just 0. This should mark the
6329 shared libraries as not backward compatible. Of course, this should
6330 be changed again when we can guarantee backward binary compatibility.
6333 *) Fix typo in get_cert_by_subject() in by_dir.c
6334 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6336 *) Rework the system to generate shared libraries:
6338 - Make note of the expected extension for the shared libraries and
6339 if there is a need for symbolic links from for example libcrypto.so.0
6340 to libcrypto.so.0.9.7. There is extended info in Configure for
6343 - Make as few rebuilds of the shared libraries as possible.
6345 - Still avoid linking the OpenSSL programs with the shared libraries.
6347 - When installing, install the shared libraries separately from the
6351 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6353 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6354 and not in SSL_clear because the latter is also used by the
6355 accept/connect functions; previously, the settings made by
6356 SSL_set_read_ahead would be lost during the handshake.
6357 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6359 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6360 Previously, it would create entries for disableed algorithms no
6364 *) Added several new manual pages for SSL_* function.
6367 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6369 *) In ssl23_get_client_hello, generate an error message when faced
6370 with an initial SSL 3.0/TLS record that is too small to contain the
6371 first two bytes of the ClientHello message, i.e. client_version.
6372 (Note that this is a pathologic case that probably has never happened
6373 in real life.) The previous approach was to use the version number
6374 from the record header as a substitute; but our protocol choice
6375 should not depend on that one because it is not authenticated
6376 by the Finished messages.
6379 *) More robust randomness gathering functions for Windows.
6380 [Jeffrey Altman <jaltman@columbia.edu>]
6382 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6383 not set then we don't setup the error code for issuer check errors
6384 to avoid possibly overwriting other errors which the callback does
6385 handle. If an application does set the flag then we assume it knows
6386 what it is doing and can handle the new informational codes
6390 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6391 a general "ANY" type, as such it should be able to decode anything
6392 including tagged types. However it didn't check the class so it would
6393 wrongly interpret tagged types in the same way as their universal
6394 counterpart and unknown types were just rejected. Changed so that the
6395 tagged and unknown types are handled in the same way as a SEQUENCE:
6396 that is the encoding is stored intact. There is also a new type
6397 "V_ASN1_OTHER" which is used when the class is not universal, in this
6398 case we have no idea what the actual type is so we just lump them all
6402 *) On VMS, stdout may very well lead to a file that is written to
6403 in a record-oriented fashion. That means that every write() will
6404 write a separate record, which will be read separately by the
6405 programs trying to read from it. This can be very confusing.
6407 The solution is to put a BIO filter in the way that will buffer
6408 text until a linefeed is reached, and then write everything a
6409 line at a time, so every record written will be an actual line,
6410 not chunks of lines and not (usually doesn't happen, but I've
6411 seen it once) several lines in one record. BIO_f_linebuffer() is
6414 Currently, it's a VMS-only method, because that's where it has
6415 been tested well enough.
6418 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6419 it can return incorrect results.
6420 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6421 but it was in 0.9.6-beta[12].)
6424 *) Disable the check for content being present when verifying detached
6425 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6426 include zero length content when signing messages.
6429 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6430 BIO_ctrl (for BIO pairs).
6433 *) Add DSO method for VMS.
6436 *) Bug fix: Montgomery multiplication could produce results with the
6440 *) Add RPM specification openssl.spec and modify it to build three
6441 packages. The default package contains applications, application
6442 documentation and run-time libraries. The devel package contains
6443 include files, static libraries and function documentation. The
6444 doc package contains the contents of the doc directory. The original
6445 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6448 *) Add a large number of documentation files for many SSL routines.
6449 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6451 *) Add a configuration entry for Sony News 4.
6452 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6454 *) Don't set the two most significant bits to one when generating a
6455 random number < q in the DSA library.
6458 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6459 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6460 the underlying transport is blocking) if a handshake took place.
6461 (The default behaviour is needed by applications such as s_client
6462 and s_server that use select() to determine when to use SSL_read;
6463 but for applications that know in advance when to expect data, it
6464 just makes things more complicated.)
6467 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6471 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6472 work better on such systems.
6473 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6475 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6476 Update PKCS12_parse() so it copies the friendlyName and the
6477 keyid to the certificates aux info.
6480 *) Fix bug in PKCS7_verify() which caused an infinite loop
6481 if there was more than one signature.
6482 [Sven Uszpelkat <su@celocom.de>]
6484 *) Major change in util/mkdef.pl to include extra information
6485 about each symbol, as well as presentig variables as well
6486 as functions. This change means that there's n more need
6487 to rebuild the .num files when some algorithms are excluded.
6490 *) Allow the verify time to be set by an application,
6491 rather than always using the current time.
6494 *) Phase 2 verify code reorganisation. The certificate
6495 verify code now looks up an issuer certificate by a
6496 number of criteria: subject name, authority key id
6497 and key usage. It also verifies self signed certificates
6498 by the same criteria. The main comparison function is
6499 X509_check_issued() which performs these checks.
6501 Lot of changes were necessary in order to support this
6502 without completely rewriting the lookup code.
6504 Authority and subject key identifier are now cached.
6506 The LHASH 'certs' is X509_STORE has now been replaced
6507 by a STACK_OF(X509_OBJECT). This is mainly because an
6508 LHASH can't store or retrieve multiple objects with
6509 the same hash value.
6511 As a result various functions (which were all internal
6512 use only) have changed to handle the new X509_STORE
6513 structure. This will break anything that messed round
6514 with X509_STORE internally.
6516 The functions X509_STORE_add_cert() now checks for an
6517 exact match, rather than just subject name.
6519 The X509_STORE API doesn't directly support the retrieval
6520 of multiple certificates matching a given criteria, however
6521 this can be worked round by performing a lookup first
6522 (which will fill the cache with candidate certificates)
6523 and then examining the cache for matches. This is probably
6524 the best we can do without throwing out X509_LOOKUP
6525 entirely (maybe later...).
6527 The X509_VERIFY_CTX structure has been enhanced considerably.
6529 All certificate lookup operations now go via a get_issuer()
6530 callback. Although this currently uses an X509_STORE it
6531 can be replaced by custom lookups. This is a simple way
6532 to bypass the X509_STORE hackery necessary to make this
6533 work and makes it possible to use more efficient techniques
6534 in future. A very simple version which uses a simple
6535 STACK for its trusted certificate store is also provided
6536 using X509_STORE_CTX_trusted_stack().
6538 The verify_cb() and verify() callbacks now have equivalents
6539 in the X509_STORE_CTX structure.
6541 X509_STORE_CTX also has a 'flags' field which can be used
6542 to customise the verify behaviour.
6545 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6546 excludes S/MIME capabilities.
6549 *) When a certificate request is read in keep a copy of the
6550 original encoding of the signed data and use it when outputing
6551 again. Signatures then use the original encoding rather than
6552 a decoded, encoded version which may cause problems if the
6553 request is improperly encoded.
6556 *) For consistency with other BIO_puts implementations, call
6557 buffer_write(b, ...) directly in buffer_puts instead of calling
6560 In BIO_puts, increment b->num_write as in BIO_write.
6561 [Peter.Sylvester@EdelWeb.fr]
6563 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6564 BN_zero, we may not return a BIGNUM with an array consisting of
6568 *) Avoid calling abort() from within the library when problems are
6569 detected, except if preprocessor symbols have been defined
6570 (such as REF_CHECK, BN_DEBUG etc.).
6573 *) New openssl application 'rsautl'. This utility can be
6574 used for low level RSA operations. DER public key
6575 BIO/fp routines also added.
6578 *) New Configure entry and patches for compiling on QNX 4.
6579 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6581 *) A demo state-machine implementation was sponsored by
6582 Nuron (http://www.nuron.com/) and is now available in
6583 demos/state_machine.
6586 *) New options added to the 'dgst' utility for signature
6587 generation and verification.
6590 *) Unrecognized PKCS#7 content types are now handled via a
6591 catch all ASN1_TYPE structure. This allows unsupported
6592 types to be stored as a "blob" and an application can
6593 encode and decode it manually.
6596 *) Fix various signed/unsigned issues to make a_strex.c
6598 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6600 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6601 length if passed a buffer. ASN1_INTEGER_to_BN failed
6602 if passed a NULL BN and its argument was negative.
6603 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6605 *) Modification to PKCS#7 encoding routines to output definite
6606 length encoding. Since currently the whole structures are in
6607 memory there's not real point in using indefinite length
6608 constructed encoding. However if OpenSSL is compiled with
6609 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6612 *) Added BIO_vprintf() and BIO_vsnprintf().
6615 *) Added more prefixes to parse for in the the strings written
6616 through a logging bio, to cover all the levels that are available
6617 through syslog. The prefixes are now:
6619 PANIC, EMERG, EMR => LOG_EMERG
6620 ALERT, ALR => LOG_ALERT
6621 CRIT, CRI => LOG_CRIT
6622 ERROR, ERR => LOG_ERR
6623 WARNING, WARN, WAR => LOG_WARNING
6624 NOTICE, NOTE, NOT => LOG_NOTICE
6625 INFO, INF => LOG_INFO
6626 DEBUG, DBG => LOG_DEBUG
6628 and as before, if none of those prefixes are present at the
6629 beginning of the string, LOG_ERR is chosen.
6631 On Win32, the LOG_* levels are mapped according to this:
6633 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6634 LOG_WARNING => EVENTLOG_WARNING_TYPE
6635 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6639 *) Made it possible to reconfigure with just the configuration
6640 argument "reconf" or "reconfigure". The command line arguments
6641 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6642 and are retrieved from there when reconfiguring.
6646 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6648 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6651 *) The obj_dat.pl script was messing up the sorting of object
6652 names. The reason was that it compared the quoted version
6653 of strings as a result "OCSP" > "OCSP Signing" because
6654 " > SPACE. Changed script to store unquoted versions of
6655 names and add quotes on output. It was also omitting some
6656 names from the lookup table if they were given a default
6657 value (that is if SN is missing it is given the same
6658 value as LN and vice versa), these are now added on the
6659 grounds that if an object has a name we should be able to
6660 look it up. Finally added warning output when duplicate
6661 short or long names are found.
6664 *) Changes needed for Tandem NSK.
6665 [Scott Uroff <scott@xypro.com>]
6667 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6668 RSA_padding_check_SSLv23(), special padding was never detected
6669 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6670 version rollback attacks was not effective.
6672 In s23_clnt.c, don't use special rollback-attack detection padding
6673 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6674 client; similarly, in s23_srvr.c, don't do the rollback check if
6675 SSL 2.0 is the only protocol enabled in the server.
6678 *) Make it possible to get hexdumps of unprintable data with 'openssl
6679 asn1parse'. By implication, the functions ASN1_parse_dump() and
6680 BIO_dump_indent() are added.
6683 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6684 these print out strings and name structures based on various
6685 flags including RFC2253 support and proper handling of
6686 multibyte characters. Added options to the 'x509' utility
6687 to allow the various flags to be set.
6690 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6691 Also change the functions X509_cmp_current_time() and
6692 X509_gmtime_adj() work with an ASN1_TIME structure,
6693 this will enable certificates using GeneralizedTime in validity
6694 dates to be checked.
6697 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6698 negative public key encodings) on by default,
6699 NO_NEG_PUBKEY_BUG can be set to disable it.
6702 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6703 content octets. An i2c_ASN1_OBJECT is unnecessary because
6704 the encoding can be trivially obtained from the structure.
6707 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6708 not read locks (CRYPTO_r_[un]lock).
6711 *) A first attempt at creating official support for shared
6712 libraries through configuration. I've kept it so the
6713 default is static libraries only, and the OpenSSL programs
6714 are always statically linked for now, but there are
6715 preparations for dynamic linking in place.
6716 This has been tested on Linux and Tru64.
6719 *) Randomness polling function for Win9x, as described in:
6720 Peter Gutmann, Software Generation of Practically Strong
6724 *) Fix so PRNG is seeded in req if using an already existing
6728 *) New options to smime application. -inform and -outform
6729 allow alternative formats for the S/MIME message including
6730 PEM and DER. The -content option allows the content to be
6731 specified separately. This should allow things like Netscape
6732 form signing output easier to verify.
6735 *) Fix the ASN1 encoding of tags using the 'long form'.
6738 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6739 STRING types. These convert content octets to and from the
6740 underlying type. The actual tag and length octets are
6741 already assumed to have been read in and checked. These
6742 are needed because all other string types have virtually
6743 identical handling apart from the tag. By having versions
6744 of the ASN1 functions that just operate on content octets
6745 IMPLICIT tagging can be handled properly. It also allows
6746 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6747 and ASN1_INTEGER are identical apart from the tag.
6750 *) Change the handling of OID objects as follows:
6752 - New object identifiers are inserted in objects.txt, following
6753 the syntax given in objects.README.
6754 - objects.pl is used to process obj_mac.num and create a new
6756 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6759 This is currently kind of a hack, and the perl code in objects.pl
6760 isn't very elegant, but it works as I intended. The simplest way
6761 to check that it worked correctly is to look in obj_dat.h and
6762 check the array nid_objs and make sure the objects haven't moved
6763 around (this is important!). Additions are OK, as well as
6764 consistent name changes.
6767 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6770 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6771 The given file adds to whatever has already been seeded into the
6772 random pool through the RANDFILE configuration file option or
6773 environment variable, or the default random state file.
6776 *) mkstack.pl now sorts each macro group into lexical order.
6777 Previously the output order depended on the order the files
6778 appeared in the directory, resulting in needless rewriting
6782 *) Patches to make OpenSSL compile under Win32 again. Mostly
6783 work arounds for the VC++ problem that it treats func() as
6784 func(void). Also stripped out the parts of mkdef.pl that
6785 added extra typesafe functions: these no longer exist.
6788 *) Reorganisation of the stack code. The macros are now all
6789 collected in safestack.h . Each macro is defined in terms of
6790 a "stack macro" of the form SKM_<name>(type, a, b). The
6791 DEBUG_SAFESTACK is now handled in terms of function casts,
6792 this has the advantage of retaining type safety without the
6793 use of additional functions. If DEBUG_SAFESTACK is not defined
6794 then the non typesafe macros are used instead. Also modified the
6795 mkstack.pl script to handle the new form. Needs testing to see
6796 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6797 the default if no major problems. Similar behaviour for ASN1_SET_OF
6798 and PKCS12_STACK_OF.
6801 *) When some versions of IIS use the 'NET' form of private key the
6802 key derivation algorithm is different. Normally MD5(password) is
6803 used as a 128 bit RC4 key. In the modified case
6804 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6805 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6806 as the old Netscape_RSA functions except they have an additional
6807 'sgckey' parameter which uses the modified algorithm. Also added
6808 an -sgckey command line option to the rsa utility. Thanks to
6809 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6810 algorithm to openssl-dev.
6813 *) The evp_local.h macros were using 'c.##kname' which resulted in
6814 invalid expansion on some systems (SCO 5.0.5 for example).
6815 Corrected to 'c.kname'.
6816 [Phillip Porch <root@theporch.com>]
6818 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6819 a STACK of email addresses from a certificate or request, these look
6820 in the subject name and the subject alternative name extensions and
6821 omit any duplicate addresses.
6824 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6825 This makes DSA verification about 2 % faster.
6828 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6829 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6830 plus overhead for 1024 bit moduli).
6831 This makes exponentiations about 0.5 % faster for 1024 bit
6832 exponents (as measured by "openssl speed rsa2048").
6835 *) Rename memory handling macros to avoid conflicts with other
6837 Malloc => OPENSSL_malloc
6838 Malloc_locked => OPENSSL_malloc_locked
6839 Realloc => OPENSSL_realloc
6840 Free => OPENSSL_free
6843 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6844 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6847 *) CygWin32 support.
6848 [John Jarvie <jjarvie@newsguy.com>]
6850 *) The type-safe stack code has been rejigged. It is now only compiled
6851 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6852 by default all type-specific stack functions are "#define"d back to
6853 standard stack functions. This results in more streamlined output
6854 but retains the type-safety checking possibilities of the original
6858 *) The STACK code has been cleaned up, and certain type declarations
6859 that didn't make a lot of sense have been brought in line. This has
6860 also involved a cleanup of sorts in safestack.h to more correctly
6861 map type-safe stack functions onto their plain stack counterparts.
6862 This work has also resulted in a variety of "const"ifications of
6863 lots of the code, especially "_cmp" operations which should normally
6864 be prototyped with "const" parameters anyway.
6867 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6868 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6869 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6870 where all of 'md' is used each time the PRNG is used, but 'state'
6871 is used only indexed by a cyclic counter. As entropy may not be
6872 well distributed from the beginning, 'md' is important as a
6873 chaining variable. However, the output function chains only half
6874 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6875 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6876 in all of 'state' being rewritten, with the new values depending
6877 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6880 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6881 the handshake is continued after ssl_verify_cert_chain();
6882 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6883 can lead to 'unexplainable' connection aborts later.
6884 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6886 *) Major EVP API cipher revision.
6887 Add hooks for extra EVP features. This allows various cipher
6888 parameters to be set in the EVP interface. Support added for variable
6889 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6890 setting of RC2 and RC5 parameters.
6892 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6895 Remove lots of duplicated code from the EVP library. For example *every*
6896 cipher init() function handles the 'iv' in the same way according to the
6897 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6898 for CFB and OFB modes they zero ctx->num.
6900 New functionality allows removal of S/MIME code RC2 hack.
6902 Most of the routines have the same form and so can be declared in terms
6905 By shifting this to the top level EVP_CipherInit() it can be removed from
6906 all individual ciphers. If the cipher wants to handle IVs or keys
6907 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6910 Change lots of functions like EVP_EncryptUpdate() to now return a
6911 value: although software versions of the algorithms cannot fail
6912 any installed hardware versions can.
6915 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6916 this option is set, tolerate broken clients that send the negotiated
6917 protocol version number instead of the requested protocol version
6921 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6922 i.e. non-zero for export ciphersuites, zero otherwise.
6923 Previous versions had this flag inverted, inconsistent with
6924 rsa_tmp_cb (..._TMP_RSA_CB).
6925 [Bodo Moeller; problem reported by Amit Chopra]
6927 *) Add missing DSA library text string. Work around for some IIS
6928 key files with invalid SEQUENCE encoding.
6931 *) Add a document (doc/standards.txt) that list all kinds of standards
6932 and so on that are implemented in OpenSSL.
6935 *) Enhance c_rehash script. Old version would mishandle certificates
6936 with the same subject name hash and wouldn't handle CRLs at all.
6937 Added -fingerprint option to crl utility, to support new c_rehash
6941 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6944 *) Fix for SSL server purpose checking. Server checking was
6945 rejecting certificates which had extended key usage present
6946 but no ssl client purpose.
6947 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6949 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6950 is a little unclear about how a blank password is handled.
6951 Since the password in encoded as a BMPString with terminating
6952 double NULL a zero length password would end up as just the
6953 double NULL. However no password at all is different and is
6954 handled differently in the PKCS#12 key generation code. NS
6955 treats a blank password as zero length. MSIE treats it as no
6956 password on export: but it will try both on import. We now do
6957 the same: PKCS12_parse() tries zero length and no password if
6958 the password is set to "" or NULL (NULL is now a valid password:
6959 it wasn't before) as does the pkcs12 application.
6962 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6963 perror when PEM_read_bio_X509_REQ fails, the error message must
6964 be obtained from the error queue.
6967 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6968 it in ERR_remove_state if appropriate, and change ERR_get_state
6969 accordingly to avoid race conditions (this is necessary because
6970 thread_hash is no longer constant once set).
6973 *) Bugfix for linux-elf makefile.one.
6976 *) RSA_get_default_method() will now cause a default
6977 RSA_METHOD to be chosen if one doesn't exist already.
6978 Previously this was only set during a call to RSA_new()
6979 or RSA_new_method(NULL) meaning it was possible for
6980 RSA_get_default_method() to return NULL.
6983 *) Added native name translation to the existing DSO code
6984 that will convert (if the flag to do so is set) filenames
6985 that are sufficiently small and have no path information
6986 into a canonical native form. Eg. "blah" converted to
6987 "libblah.so" or "blah.dll" etc.
6990 *) New function ERR_error_string_n(e, buf, len) which is like
6991 ERR_error_string(e, buf), but writes at most 'len' bytes
6992 including the 0 terminator. For ERR_error_string_n, 'buf'
6994 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6996 *) CONF library reworked to become more general. A new CONF
6997 configuration file reader "class" is implemented as well as a
6998 new functions (NCONF_*, for "New CONF") to handle it. The now
6999 old CONF_* functions are still there, but are reimplemented to
7000 work in terms of the new functions. Also, a set of functions
7001 to handle the internal storage of the configuration data is
7002 provided to make it easier to write new configuration file
7003 reader "classes" (I can definitely see something reading a
7004 configuration file in XML format, for example), called _CONF_*,
7005 or "the configuration storage API"...
7007 The new configuration file reading functions are:
7009 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
7010 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
7012 NCONF_default, NCONF_WIN32
7014 NCONF_dump_fp, NCONF_dump_bio
7016 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
7017 NCONF_new creates a new CONF object. This works in the same way
7018 as other interfaces in OpenSSL, like the BIO interface.
7019 NCONF_dump_* dump the internal storage of the configuration file,
7020 which is useful for debugging. All other functions take the same
7021 arguments as the old CONF_* functions wth the exception of the
7022 first that must be a `CONF *' instead of a `LHASH *'.
7024 To make it easer to use the new classes with the old CONF_* functions,
7025 the function CONF_set_default_method is provided.
7028 *) Add '-tls1' option to 'openssl ciphers', which was already
7029 mentioned in the documentation but had not been implemented.
7030 (This option is not yet really useful because even the additional
7031 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
7034 *) Initial DSO code added into libcrypto for letting OpenSSL (and
7035 OpenSSL-based applications) load shared libraries and bind to
7036 them in a portable way.
7037 [Geoff Thorpe, with contributions from Richard Levitte]
7039 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
7041 *) Make sure _lrotl and _lrotr are only used with MSVC.
7043 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
7044 (the default implementation of RAND_status).
7046 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
7047 to '-clrext' (= clear extensions), as intended and documented.
7048 [Bodo Moeller; inconsistency pointed out by Michael Attili
7051 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
7052 was larger than the MD block size.
7053 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
7055 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
7056 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
7057 using the passed key: if the passed key was a private key the result
7058 of X509_print(), for example, would be to print out all the private key
7062 *) des_quad_cksum() byte order bug fix.
7063 [Ulf Möller, using the problem description in krb4-0.9.7, where
7064 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
7066 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
7068 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
7070 *) For easily testing in shell scripts whether some command
7071 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
7072 returns with exit code 0 iff no command of the given name is available.
7073 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
7074 the output goes to stdout and nothing is printed to stderr.
7075 Additional arguments are always ignored.
7077 Since for each cipher there is a command of the same name,
7078 the 'no-cipher' compilation switches can be tested this way.
7080 ('openssl no-XXX' is not able to detect pseudo-commands such
7081 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
7084 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
7087 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
7088 is set; it will be thrown away anyway because each handshake creates
7090 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
7091 to parameters -- in previous versions (since OpenSSL 0.9.3) the
7092 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
7093 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
7096 *) New s_client option -ign_eof: EOF at stdin is ignored, and
7097 'Q' and 'R' lose their special meanings (quit/renegotiate).
7098 This is part of what -quiet does; unlike -quiet, -ign_eof
7099 does not suppress any output.
7102 *) Add compatibility options to the purpose and trust code. The
7103 purpose X509_PURPOSE_ANY is "any purpose" which automatically
7104 accepts a certificate or CA, this was the previous behaviour,
7105 with all the associated security issues.
7107 X509_TRUST_COMPAT is the old trust behaviour: only and
7108 automatically trust self signed roots in certificate store. A
7109 new trust setting X509_TRUST_DEFAULT is used to specify that
7110 a purpose has no associated trust setting and it should instead
7111 use the value in the default purpose.
7114 *) Fix the PKCS#8 DSA private key code so it decodes keys again
7115 and fix a memory leak.
7118 *) In util/mkerr.pl (which implements 'make errors'), preserve
7119 reason strings from the previous version of the .c file, as
7120 the default to have only downcase letters (and digits) in
7121 automatically generated reasons codes is not always appropriate.
7124 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
7125 using strerror. Previously, ERR_reason_error_string() returned
7126 library names as reason strings for SYSerr; but SYSerr is a special
7127 case where small numbers are errno values, not library numbers.
7130 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7131 converts DSA parameters into DH parameters. (When creating parameters,
7132 DSA_generate_parameters is used.)
7135 *) Include 'length' (recommended exponent length) in C code generated
7136 by 'openssl dhparam -C'.
7139 *) The second argument to set_label in perlasm was already being used
7140 so couldn't be used as a "file scope" flag. Moved to third argument
7144 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7145 instead of RAND_bytes for encryption IVs and salts.
7148 *) Include RAND_status() into RAND_METHOD instead of implementing
7149 it only for md_rand.c Otherwise replacing the PRNG by calling
7150 RAND_set_rand_method would be impossible.
7153 *) Don't let DSA_generate_key() enter an infinite loop if the random
7154 number generation fails.
7157 *) New 'rand' application for creating pseudo-random output.
7160 *) Added configuration support for Linux/IA64
7161 [Rolf Haberrecker <rolf@suse.de>]
7163 *) Assembler module support for Mingw32.
7166 *) Shared library support for HPUX (in shlib/).
7167 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7169 *) Shared library support for Solaris gcc.
7170 [Lutz Behnke <behnke@trustcenter.de>]
7172 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7174 *) PKCS7_encrypt() was adding text MIME headers twice because they
7175 were added manually and by SMIME_crlf_copy().
7178 *) In bntest.c don't call BN_rand with zero bits argument.
7179 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7181 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7182 case was implemented. This caused BN_div_recp() to fail occasionally.
7185 *) Add an optional second argument to the set_label() in the perl
7186 assembly language builder. If this argument exists and is set
7187 to 1 it signals that the assembler should use a symbol whose
7188 scope is the entire file, not just the current function. This
7189 is needed with MASM which uses the format label:: for this scope.
7190 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7192 *) Change the ASN1 types so they are typedefs by default. Before
7193 almost all types were #define'd to ASN1_STRING which was causing
7194 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7198 *) Change names of new functions to the new get1/get0 naming
7199 convention: After 'get1', the caller owns a reference count
7200 and has to call ..._free; 'get0' returns a pointer to some
7201 data structure without incrementing reference counters.
7202 (Some of the existing 'get' functions increment a reference
7203 counter, some don't.)
7204 Similarly, 'set1' and 'add1' functions increase reference
7205 counters or duplicate objects.
7208 *) Allow for the possibility of temp RSA key generation failure:
7209 the code used to assume it always worked and crashed on failure.
7212 *) Fix potential buffer overrun problem in BIO_printf().
7213 [Ulf Möller, using public domain code by Patrick Powell; problem
7214 pointed out by David Sacerdote <das33@cornell.edu>]
7216 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7217 RAND_egd() and RAND_status(). In the command line application,
7218 the EGD socket can be specified like a seed file using RANDFILE
7222 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7223 Some CAs (e.g. Verisign) distribute certificates in this form.
7226 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7227 list to exclude them. This means that no special compilation option
7228 is needed to use anonymous DH: it just needs to be included in the
7232 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7233 EVP_MD_type. The old functionality is available in a new macro called
7234 EVP_MD_md(). Change code that uses it and update docs.
7237 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7238 where the 'void *' argument is replaced by a function pointer argument.
7239 Previously 'void *' was abused to point to functions, which works on
7240 many platforms, but is not correct. As these functions are usually
7241 called by macros defined in OpenSSL header files, most source code
7242 should work without changes.
7245 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7246 sections with information on -D... compiler switches used for
7247 compiling the library so that applications can see them. To enable
7248 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7249 must be defined. E.g.,
7250 #define OPENSSL_ALGORITHM_DEFINES
7251 #include <openssl/opensslconf.h>
7252 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7253 [Richard Levitte, Ulf and Bodo Möller]
7255 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7259 *) Change the 'other' type in certificate aux info to a STACK_OF
7260 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7261 the required ASN1 format: arbitrary types determined by an OID.
7264 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7265 argument to 'req'. This is not because the function is newer or
7266 better than others it just uses the work 'NEW' in the certificate
7267 request header lines. Some software needs this.
7270 *) Reorganise password command line arguments: now passwords can be
7271 obtained from various sources. Delete the PEM_cb function and make
7272 it the default behaviour: i.e. if the callback is NULL and the
7273 usrdata argument is not NULL interpret it as a null terminated pass
7274 phrase. If usrdata and the callback are NULL then the pass phrase
7275 is prompted for as usual.
7278 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7279 the support is automatically enabled. The resulting binaries will
7280 autodetect the card and use it if present.
7281 [Ben Laurie and Compaq Inc.]
7283 *) Work around for Netscape hang bug. This sends certificate request
7284 and server done in one record. Since this is perfectly legal in the
7285 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7286 the bugs/SSLv3 entry for more info.
7289 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7292 *) Add -rand argument to smime and pkcs12 applications and read/write
7296 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7299 *) Add command line password options to the remaining applications.
7302 *) Bug fix for BN_div_recp() for numerators with an even number of
7306 *) More tests in bntest.c, and changed test_bn output.
7309 *) ./config recognizes MacOS X now.
7312 *) Bug fix for BN_div() when the first words of num and divsor are
7313 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7316 *) Add support for various broken PKCS#8 formats, and command line
7317 options to produce them.
7320 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7321 get temporary BIGNUMs from a BN_CTX.
7324 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7328 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7329 include a #define from the old name to the new. The original intent
7330 was that statically linked binaries could for example just call
7331 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7332 link with digests. This never worked becayse SSLeay_add_all_digests()
7333 and SSLeay_add_all_ciphers() were in the same source file so calling
7334 one would link with the other. They are now in separate source files.
7337 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7340 *) Use a less unusual form of the Miller-Rabin primality test (it used
7341 a binary algorithm for exponentiation integrated into the Miller-Rabin
7342 loop, our standard modexp algorithms are faster).
7345 *) Support for the EBCDIC character set completed.
7346 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7348 *) Source code cleanups: use const where appropriate, eliminate casts,
7349 use void * instead of char * in lhash.
7352 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7353 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7354 this the server could overwrite ephemeral keys that the client
7358 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7359 using 50 iterations of the Rabin-Miller test.
7361 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7362 iterations of the Rabin-Miller test as required by the appendix
7363 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7364 As BN_is_prime_fasttest includes trial division, DSA parameter
7365 generation becomes much faster.
7367 This implies a change for the callback functions in DSA_is_prime
7368 and DSA_generate_parameters: The callback function is called once
7369 for each positive witness in the Rabin-Miller test, not just
7370 occasionally in the inner loop; and the parameters to the
7371 callback function now provide an iteration count for the outer
7372 loop rather than for the current invocation of the inner loop.
7373 DSA_generate_parameters additionally can call the callback
7374 function with an 'iteration count' of -1, meaning that a
7375 candidate has passed the trial division test (when q is generated
7376 from an application-provided seed, trial division is skipped).
7379 *) New function BN_is_prime_fasttest that optionally does trial
7380 division before starting the Rabin-Miller test and has
7381 an additional BN_CTX * argument (whereas BN_is_prime always
7382 has to allocate at least one BN_CTX).
7383 'callback(1, -1, cb_arg)' is called when a number has passed the
7384 trial division stage.
7387 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7391 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7394 *) New function BN_pseudo_rand().
7397 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7398 bignum version of BN_from_montgomery() with the working code from
7399 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7403 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7404 made it impossible to use the same SSL_SESSION data structure in
7405 SSL2 clients in multiple threads.
7408 *) The return value of RAND_load_file() no longer counts bytes obtained
7409 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7410 to seed the PRNG (previously an explicit byte count was required).
7411 [Ulf Möller, Bodo Möller]
7413 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7414 used (char *) instead of (void *) and had casts all over the place.
7417 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7420 *) Retain source code compatibility for BN_prime_checks macro:
7421 BN_is_prime(..., BN_prime_checks, ...) now uses
7422 BN_prime_checks_for_size to determine the appropriate number of
7423 Rabin-Miller iterations.
7426 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7427 DH_CHECK_P_NOT_SAFE_PRIME.
7428 (Check if this is true? OpenPGP calls them "strong".)
7431 *) Merge the functionality of "dh" and "gendh" programs into a new program
7432 "dhparam". The old programs are retained for now but will handle DH keys
7433 (instead of parameters) in future.
7436 *) Make the ciphers, s_server and s_client programs check the return values
7437 when a new cipher list is set.
7440 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7441 ciphers. Before when the 56bit ciphers were enabled the sorting was
7444 The syntax for the cipher sorting has been extended to support sorting by
7445 cipher-strength (using the strength_bits hard coded in the tables).
7446 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7448 Fix a bug in the cipher-command parser: when supplying a cipher command
7449 string with an "undefined" symbol (neither command nor alphanumeric
7450 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7451 an error is flagged.
7453 Due to the strength-sorting extension, the code of the
7454 ssl_create_cipher_list() function was completely rearranged. I hope that
7455 the readability was also increased :-)
7456 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7458 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7459 for the first serial number and places 2 in the serial number file. This
7460 avoids problems when the root CA is created with serial number zero and
7461 the first user certificate has the same issuer name and serial number
7465 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7466 the new code. Add documentation for this stuff.
7469 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7470 X509_*() to X509at_*() on the grounds that they don't handle X509
7471 structures and behave in an analagous way to the X509v3 functions:
7472 they shouldn't be called directly but wrapper functions should be used
7475 So we also now have some wrapper functions that call the X509at functions
7476 when passed certificate requests. (TO DO: similar things can be done with
7477 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7478 things. Some of these need some d2i or i2d and print functionality
7479 because they handle more complex structures.)
7482 *) Add missing #ifndefs that caused missing symbols when building libssl
7483 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7484 NO_RSA in ssl/s2*.c.
7485 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7487 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7488 has a return value which indicates the quality of the random data
7489 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7490 error queue. New function RAND_pseudo_bytes() generates output that is
7491 guaranteed to be unique but not unpredictable. RAND_add is like
7492 RAND_seed, but takes an extra argument for an entropy estimate
7493 (RAND_seed always assumes full entropy).
7496 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7497 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7498 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7499 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7500 false-positive rate of at most 2^-80 for random input.
7503 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7506 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7507 in the 0.9.5 release), this returns the chain
7508 from an X509_CTX structure with a dup of the stack and all
7509 the X509 reference counts upped: so the stack will exist
7510 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7513 Also make SSL_SESSION_print() print out the verify return
7517 *) Add manpage for the pkcs12 command. Also change the default
7518 behaviour so MAC iteration counts are used unless the new
7519 -nomaciter option is used. This improves file security and
7520 only older versions of MSIE (4.0 for example) need it.
7523 *) Honor the no-xxx Configure options when creating .DEF files.
7526 *) Add PKCS#10 attributes to field table: challengePassword,
7527 unstructuredName and unstructuredAddress. These are taken from
7528 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7529 international characters are used.
7531 More changes to X509_ATTRIBUTE code: allow the setting of types
7532 based on strings. Remove the 'loc' parameter when adding
7533 attributes because these will be a SET OF encoding which is sorted
7537 *) Initial changes to the 'req' utility to allow request generation
7538 automation. This will allow an application to just generate a template
7539 file containing all the field values and have req construct the
7542 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7543 used all over the place including certificate requests and PKCS#7
7544 structures. They are currently handled manually where necessary with
7545 some primitive wrappers for PKCS#7. The new functions behave in a
7546 manner analogous to the X509 extension functions: they allow
7547 attributes to be looked up by NID and added.
7549 Later something similar to the X509V3 code would be desirable to
7550 automatically handle the encoding, decoding and printing of the
7551 more complex types. The string types like challengePassword can
7552 be handled by the string table functions.
7554 Also modified the multi byte string table handling. Now there is
7555 a 'global mask' which masks out certain types. The table itself
7556 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7557 is useful when for example there is only one permissible type
7558 (as in countryName) and using the mask might result in no valid
7562 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7563 SSL_get_peer_finished to allow applications to obtain the latest
7564 Finished messages sent to the peer or expected from the peer,
7565 respectively. (SSL_get_peer_finished is usually the Finished message
7566 actually received from the peer, otherwise the protocol will be aborted.)
7568 As the Finished message are message digests of the complete handshake
7569 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7570 be used for external authentication procedures when the authentication
7571 provided by SSL/TLS is not desired or is not enough.
7574 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7575 the host supports BWX extension and if Compaq C is present on the
7576 $PATH. Just exploiting of the BWX extension results in 20-30%
7577 performance kick for some algorithms, e.g. DES and RC4 to mention
7578 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7582 *) Add support for MS "fast SGC". This is arguably a violation of the
7583 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7584 weak crypto and after checking the certificate is SGC a second one
7585 with strong crypto. MS SGC stops the first handshake after receiving
7586 the server certificate message and sends a second client hello. Since
7587 a server will typically do all the time consuming operations before
7588 expecting any further messages from the client (server key exchange
7589 is the most expensive) there is little difference between the two.
7591 To get OpenSSL to support MS SGC we have to permit a second client
7592 hello message after we have sent server done. In addition we have to
7593 reset the MAC if we do get this second client hello.
7596 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7597 if a DER encoded private key is RSA or DSA traditional format. Changed
7598 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7599 format DER encoded private key. Newer code should use PKCS#8 format which
7600 has the key type encoded in the ASN1 structure. Added DER private key
7601 support to pkcs8 application.
7604 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7605 ciphersuites has been selected (as required by the SSL 3/TLS 1
7606 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7607 is set, we interpret this as a request to violate the specification
7608 (the worst that can happen is a handshake failure, and 'correct'
7609 behaviour would result in a handshake failure anyway).
7612 *) In SSL_CTX_add_session, take into account that there might be multiple
7613 SSL_SESSION structures with the same session ID (e.g. when two threads
7614 concurrently obtain them from an external cache).
7615 The internal cache can handle only one SSL_SESSION with a given ID,
7616 so if there's a conflict, we now throw out the old one to achieve
7620 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7621 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7622 some routines that use cipher OIDs: some ciphers do not have OIDs
7623 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7627 *) Simplify the trust setting structure and code. Now we just have
7628 two sequences of OIDs for trusted and rejected settings. These will
7629 typically have values the same as the extended key usage extension
7630 and any application specific purposes.
7632 The trust checking code now has a default behaviour: it will just
7633 check for an object with the same NID as the passed id. Functions can
7634 be provided to override either the default behaviour or the behaviour
7635 for a given id. SSL client, server and email already have functions
7636 in place for compatibility: they check the NID and also return "trusted"
7637 if the certificate is self signed.
7640 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7641 traditional format into an EVP_PKEY structure.
7644 *) Add a password callback function PEM_cb() which either prompts for
7645 a password if usr_data is NULL or otherwise assumes it is a null
7646 terminated password. Allow passwords to be passed on command line
7647 environment or config files in a few more utilities.
7650 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7651 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7652 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7653 Update documentation.
7656 *) Support for ASN1 "NULL" type. This could be handled before by using
7657 ASN1_TYPE but there wasn't any function that would try to read a NULL
7658 and produce an error if it couldn't. For compatibility we also have
7659 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7660 don't allocate anything because they don't need to.
7663 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7665 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7667 *) Rebuild of the memory allocation routines used by OpenSSL code and
7668 possibly others as well. The purpose is to make an interface that
7669 provide hooks so anyone can build a separate set of allocation and
7670 deallocation routines to be used by OpenSSL, for example memory
7671 pool implementations, or something else, which was previously hard
7672 since Malloc(), Realloc() and Free() were defined as macros having
7673 the values malloc, realloc and free, respectively (except for Win32
7674 compilations). The same is provided for memory debugging code.
7675 OpenSSL already comes with functionality to find memory leaks, but
7676 this gives people a chance to debug other memory problems.
7678 With these changes, a new set of functions and macros have appeared:
7680 CRYPTO_set_mem_debug_functions() [F]
7681 CRYPTO_get_mem_debug_functions() [F]
7682 CRYPTO_dbg_set_options() [F]
7683 CRYPTO_dbg_get_options() [F]
7684 CRYPTO_malloc_debug_init() [M]
7686 The memory debug functions are NULL by default, unless the library
7687 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7688 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7689 gives the standard debugging functions that come with OpenSSL) or
7690 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7691 provided by the library user) must be used. When the standard
7692 debugging functions are used, CRYPTO_dbg_set_options can be used to
7693 request additional information:
7694 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7695 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7697 Also, things like CRYPTO_set_mem_functions will always give the
7698 expected result (the new set of functions is used for allocation
7699 and deallocation) at all times, regardless of platform and compiler
7702 To finish it up, some functions that were never use in any other
7703 way than through macros have a new API and new semantic:
7706 CRYPTO_dbg_realloc()
7709 All macros of value have retained their old syntax.
7710 [Richard Levitte and Bodo Moeller]
7712 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7713 ordering of SMIMECapabilities wasn't in "strength order" and there
7714 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7718 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7719 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7720 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7722 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7723 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7724 functionality to handle multipart/signed properly) and a utility
7725 called 'smime' to call all this stuff. This is based on code I
7726 originally wrote for Celo who have kindly allowed it to be
7727 included in OpenSSL.
7730 *) Add variants des_set_key_checked and des_set_key_unchecked of
7731 des_set_key (aka des_key_sched). Global variable des_check_key
7732 decides which of these is called by des_set_key; this way
7733 des_check_key behaves as it always did, but applications and
7734 the library itself, which was buggy for des_check_key == 1,
7735 have a cleaner way to pick the version they need.
7738 *) New function PKCS12_newpass() which changes the password of a
7742 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7743 dynamic mix. In both cases the ids can be used as an index into the
7744 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7745 functions so they accept a list of the field values and the
7746 application doesn't need to directly manipulate the X509_TRUST
7750 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7754 *) Modify the way the V3 extension code looks up extensions. This now
7755 works in a similar way to the object code: we have some "standard"
7756 extensions in a static table which is searched with OBJ_bsearch()
7757 and the application can add dynamic ones if needed. The file
7758 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7759 updated whenever a new extension is added to the core code and kept
7760 in ext_nid order. There is a simple program 'tabtest.c' which checks
7761 this. New extensions are not added too often so this file can readily
7762 be maintained manually.
7764 There are two big advantages in doing things this way. The extensions
7765 can be looked up immediately and no longer need to be "added" using
7766 X509V3_add_standard_extensions(): this function now does nothing.
7767 [Side note: I get *lots* of email saying the extension code doesn't
7768 work because people forget to call this function]
7769 Also no dynamic allocation is done unless new extensions are added:
7770 so if we don't add custom extensions there is no need to call
7771 X509V3_EXT_cleanup().
7774 *) Modify enc utility's salting as follows: make salting the default. Add a
7775 magic header, so unsalted files fail gracefully instead of just decrypting
7776 to garbage. This is because not salting is a big security hole, so people
7777 should be discouraged from doing it.
7780 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7781 digest to be passed on the command line but it only used this
7782 parameter when signing a certificate. Modified so all relevant
7783 operations are affected by the digest parameter including the
7784 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7785 DSA key was used because it didn't fix the digest.
7788 *) Initial certificate chain verify code. Currently tests the untrusted
7789 certificates for consistency with the verify purpose (which is set
7790 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7792 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7793 this is because it will reject chains with invalid extensions whereas
7794 every previous version of OpenSSL and SSLeay made no checks at all.
7796 Trust code: checks the root CA for the relevant trust settings. Trust
7797 settings have an initial value consistent with the verify purpose: e.g.
7798 if the verify purpose is for SSL client use it expects the CA to be
7799 trusted for SSL client use. However the default value can be changed to
7800 permit custom trust settings: one example of this would be to only trust
7801 certificates from a specific "secure" set of CAs.
7803 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7804 which should be used for version portability: especially since the
7805 verify structure is likely to change more often now.
7807 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7808 to set them. If not set then assume SSL clients will verify SSL servers
7811 Two new options to the verify program: -untrusted allows a set of
7812 untrusted certificates to be passed in and -purpose which sets the
7813 intended purpose of the certificate. If a purpose is set then the
7814 new chain verify code is used to check extension consistency.
7817 *) Support for the authority information access extension.
7820 *) Modify RSA and DSA PEM read routines to transparently handle
7821 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7822 public keys in a format compatible with certificate
7823 SubjectPublicKeyInfo structures. Unfortunately there were already
7824 functions called *_PublicKey_* which used various odd formats so
7825 these are retained for compatibility: however the DSA variants were
7826 never in a public release so they have been deleted. Changed dsa/rsa
7827 utilities to handle the new format: note no releases ever handled public
7828 keys so we should be OK.
7830 The primary motivation for this change is to avoid the same fiasco
7831 that dogs private keys: there are several incompatible private key
7832 formats some of which are standard and some OpenSSL specific and
7833 require various evil hacks to allow partial transparent handling and
7834 even then it doesn't work with DER formats. Given the option anything
7835 other than PKCS#8 should be dumped: but the other formats have to
7836 stay in the name of compatibility.
7838 With public keys and the benefit of hindsight one standard format
7839 is used which works with EVP_PKEY, RSA or DSA structures: though
7840 it clearly returns an error if you try to read the wrong kind of key.
7842 Added a -pubkey option to the 'x509' utility to output the public key.
7843 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7844 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7845 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7846 that do the same as the EVP_PKEY_assign_*() except they up the
7847 reference count of the added key (they don't "swallow" the
7851 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7852 CRLs would fail if the file contained no certificates or no CRLs:
7853 added a new function to read in both types and return the number
7854 read: this means that if none are read it will be an error. The
7855 DER versions of the certificate and CRL reader would always fail
7856 because it isn't possible to mix certificates and CRLs in DER format
7857 without choking one or the other routine. Changed this to just read
7858 a certificate: this is the best we can do. Also modified the code
7859 in apps/verify.c to take notice of return codes: it was previously
7860 attempting to read in certificates from NULL pointers and ignoring
7861 any errors: this is one reason why the cert and CRL reader seemed
7862 to work. It doesn't check return codes from the default certificate
7863 routines: these may well fail if the certificates aren't installed.
7866 *) Code to support otherName option in GeneralName.
7869 *) First update to verify code. Change the verify utility
7870 so it warns if it is passed a self signed certificate:
7871 for consistency with the normal behaviour. X509_verify
7872 has been modified to it will now verify a self signed
7873 certificate if *exactly* the same certificate appears
7874 in the store: it was previously impossible to trust a
7875 single self signed certificate. This means that:
7876 openssl verify ss.pem
7877 now gives a warning about a self signed certificate but
7878 openssl verify -CAfile ss.pem ss.pem
7882 *) For servers, store verify_result in SSL_SESSION data structure
7883 (and add it to external session representation).
7884 This is needed when client certificate verifications fails,
7885 but an application-provided verification callback (set by
7886 SSL_CTX_set_cert_verify_callback) allows accepting the session
7887 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7888 but returns 1): When the session is reused, we have to set
7889 ssl->verify_result to the appropriate error code to avoid
7891 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7893 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7894 case in PKCS7_dataInit() where the signed PKCS7 structure
7895 didn't contain any existing data because it was being created.
7896 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7898 *) Add a salt to the key derivation routines in enc.c. This
7899 forms the first 8 bytes of the encrypted file. Also add a
7900 -S option to allow a salt to be input on the command line.
7903 *) New function X509_cmp(). Oddly enough there wasn't a function
7904 to compare two certificates. We do this by working out the SHA1
7905 hash and comparing that. X509_cmp() will be needed by the trust
7909 *) SSL_get1_session() is like SSL_get_session(), but increments
7910 the reference count in the SSL_SESSION returned.
7911 [Geoff Thorpe <geoff@eu.c2.net>]
7913 *) Fix for 'req': it was adding a null to request attributes.
7914 Also change the X509_LOOKUP and X509_INFO code to handle
7915 certificate auxiliary information.
7918 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7922 *) Add the possibility to add extra information to the memory leak
7923 detecting output, to form tracebacks, showing from where each
7924 allocation was originated: CRYPTO_push_info("constant string") adds
7925 the string plus current file name and line number to a per-thread
7926 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7927 is like calling CYRPTO_pop_info() until the stack is empty.
7928 Also updated memory leak detection code to be multi-thread-safe.
7931 *) Add options -text and -noout to pkcs7 utility and delete the
7932 encryption options which never did anything. Update docs.
7935 *) Add options to some of the utilities to allow the pass phrase
7936 to be included on either the command line (not recommended on
7937 OSes like Unix) or read from the environment. Update the
7938 manpages and fix a few bugs.
7941 *) Add a few manpages for some of the openssl commands.
7944 *) Fix the -revoke option in ca. It was freeing up memory twice,
7945 leaking and not finding already revoked certificates.
7948 *) Extensive changes to support certificate auxiliary information.
7949 This involves the use of X509_CERT_AUX structure and X509_AUX
7950 functions. An X509_AUX function such as PEM_read_X509_AUX()
7951 can still read in a certificate file in the usual way but it
7952 will also read in any additional "auxiliary information". By
7953 doing things this way a fair degree of compatibility can be
7954 retained: existing certificates can have this information added
7955 using the new 'x509' options.
7957 Current auxiliary information includes an "alias" and some trust
7958 settings. The trust settings will ultimately be used in enhanced
7959 certificate chain verification routines: currently a certificate
7960 can only be trusted if it is self signed and then it is trusted
7964 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7965 The problem was that one of the replacement routines had not been working
7966 since SSLeay releases. For now the offending routine has been replaced
7967 with non-optimised assembler. Even so, this now gives around 95%
7968 performance improvement for 1024 bit RSA signs.
7971 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7972 handling. Most clients have the effective key size in bits equal to
7973 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7974 A few however don't do this and instead use the size of the decrypted key
7975 to determine the RC2 key length and the AlgorithmIdentifier to determine
7976 the effective key length. In this case the effective key length can still
7977 be 40 bits but the key length can be 168 bits for example. This is fixed
7978 by manually forcing an RC2 key into the EVP_PKEY structure because the
7979 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7980 the key length and effective key length are equal.
7983 *) Add a bunch of functions that should simplify the creation of
7984 X509_NAME structures. Now you should be able to do:
7985 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7986 and have it automatically work out the correct field type and fill in
7987 the structures. The more adventurous can try:
7988 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7989 and it will (hopefully) work out the correct multibyte encoding.
7992 *) Change the 'req' utility to use the new field handling and multibyte
7993 copy routines. Before the DN field creation was handled in an ad hoc
7994 way in req, ca, and x509 which was rather broken and didn't support
7995 BMPStrings or UTF8Strings. Since some software doesn't implement
7996 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7997 using the dirstring_type option. See the new comment in the default
7998 openssl.cnf for more info.
8001 *) Make crypto/rand/md_rand.c more robust:
8002 - Assure unique random numbers after fork().
8003 - Make sure that concurrent threads access the global counter and
8004 md serializably so that we never lose entropy in them
8005 or use exactly the same state in multiple threads.
8006 Access to the large state is not always serializable because
8007 the additional locking could be a performance killer, and
8008 md should be large enough anyway.
8011 *) New file apps/app_rand.c with commonly needed functionality
8012 for handling the random seed file.
8014 Use the random seed file in some applications that previously did not:
8016 dsaparam -genkey (which also ignored its '-rand' option),
8019 x509 (when signing).
8020 Except on systems with /dev/urandom, it is crucial to have a random
8021 seed file at least for key creation, DSA signing, and for DH exchanges;
8022 for RSA signatures we could do without one.
8024 gendh and gendsa (unlike genrsa) used to read only the first byte
8025 of each file listed in the '-rand' option. The function as previously
8026 found in genrsa is now in app_rand.c and is used by all programs
8027 that support '-rand'.
8030 *) In RAND_write_file, use mode 0600 for creating files;
8031 don't just chmod when it may be too late.
8034 *) Report an error from X509_STORE_load_locations
8035 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
8038 *) New function ASN1_mbstring_copy() this copies a string in either
8039 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
8040 into an ASN1_STRING type. A mask of permissible types is passed
8041 and it chooses the "minimal" type to use or an error if not type
8045 *) Add function equivalents to the various macros in asn1.h. The old
8046 macros are retained with an M_ prefix. Code inside the library can
8047 use the M_ macros. External code (including the openssl utility)
8048 should *NOT* in order to be "shared library friendly".
8051 *) Add various functions that can check a certificate's extensions
8052 to see if it usable for various purposes such as SSL client,
8053 server or S/MIME and CAs of these types. This is currently
8054 VERY EXPERIMENTAL but will ultimately be used for certificate chain
8055 verification. Also added a -purpose flag to x509 utility to
8056 print out all the purposes.
8059 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
8063 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
8064 for, obtain and decode and extension and obtain its critical flag.
8065 This allows all the necessary extension code to be handled in a
8066 single function call.
8069 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
8070 platforms. See crypto/rc4/rc4_enc.c for further details.
8073 *) New -noout option to asn1parse. This causes no output to be produced
8074 its main use is when combined with -strparse and -out to extract data
8075 from a file (which may not be in ASN.1 format).
8078 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
8079 when producing the local key id.
8080 [Richard Levitte <levitte@stacken.kth.se>]
8082 *) New option -dhparam in s_server. This allows a DH parameter file to be
8083 stated explicitly. If it is not stated then it tries the first server
8084 certificate file. The previous behaviour hard coded the filename
8088 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
8089 a public key to be input or output. For example:
8090 openssl rsa -in key.pem -pubout -out pubkey.pem
8091 Also added necessary DSA public key functions to handle this.
8094 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
8095 in the message. This was handled by allowing
8096 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
8097 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
8099 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
8100 to the end of the strings whereas this didn't. This would cause problems
8101 if strings read with d2i_ASN1_bytes() were later modified.
8102 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
8104 *) Fix for base64 decode bug. When a base64 bio reads only one line of
8105 data and it contains EOF it will end up returning an error. This is
8106 caused by input 46 bytes long. The cause is due to the way base64
8107 BIOs find the start of base64 encoded data. They do this by trying a
8108 trial decode on each line until they find one that works. When they
8109 do a flag is set and it starts again knowing it can pass all the
8110 data directly through the decoder. Unfortunately it doesn't reset
8111 the context it uses. This means that if EOF is reached an attempt
8112 is made to pass two EOFs through the context and this causes the
8113 resulting error. This can also cause other problems as well. As is
8114 usual with these problems it takes *ages* to find and the fix is
8115 trivial: move one line.
8116 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
8118 *) Ugly workaround to get s_client and s_server working under Windows. The
8119 old code wouldn't work because it needed to select() on sockets and the
8120 tty (for keypresses and to see if data could be written). Win32 only
8121 supports select() on sockets so we select() with a 1s timeout on the
8122 sockets and then see if any characters are waiting to be read, if none
8123 are present then we retry, we also assume we can always write data to
8124 the tty. This isn't nice because the code then blocks until we've
8125 received a complete line of data and it is effectively polling the
8126 keyboard at 1s intervals: however it's quite a bit better than not
8127 working at all :-) A dedicated Windows application might handle this
8128 with an event loop for example.
8131 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8132 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8133 will be called when RSA_sign() and RSA_verify() are used. This is useful
8134 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8135 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8136 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8137 This necessitated the support of an extra signature type NID_md5_sha1
8138 for SSL signatures and modifications to the SSL library to use it instead
8139 of calling RSA_public_decrypt() and RSA_private_encrypt().
8142 *) Add new -verify -CAfile and -CApath options to the crl program, these
8143 will lookup a CRL issuers certificate and verify the signature in a
8144 similar way to the verify program. Tidy up the crl program so it
8145 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8146 less strict. It will now permit CRL extensions even if it is not
8147 a V2 CRL: this will allow it to tolerate some broken CRLs.
8150 *) Initialize all non-automatic variables each time one of the openssl
8151 sub-programs is started (this is necessary as they may be started
8152 multiple times from the "OpenSSL>" prompt).
8153 [Lennart Bang, Bodo Moeller]
8155 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8156 removing all other RSA functionality (this is what NO_RSA does). This
8157 is so (for example) those in the US can disable those operations covered
8158 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8162 *) Non-copying interface to BIO pairs.
8163 (still largely untested)
8166 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8167 ASCII string. This was handled independently in various places before.
8170 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8171 UTF8 strings a character at a time.
8174 *) Use client_version from client hello to select the protocol
8175 (s23_srvr.c) and for RSA client key exchange verification
8176 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8179 *) Add various utility functions to handle SPKACs, these were previously
8180 handled by poking round in the structure internals. Added new function
8181 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8182 print, verify and generate SPKACs. Based on an original idea from
8183 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8186 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8189 *) Allow the config file extension section to be overwritten on the
8190 command line. Based on an original idea from Massimiliano Pala
8191 <madwolf@comune.modena.it>. The new option is called -extensions
8192 and can be applied to ca, req and x509. Also -reqexts to override
8193 the request extensions in req and -crlexts to override the crl extensions
8197 *) Add new feature to the SPKAC handling in ca. Now you can include
8198 the same field multiple times by preceding it by "XXXX." for example:
8201 this is the same syntax as used in the req config file.
8204 *) Allow certificate extensions to be added to certificate requests. These
8205 are specified in a 'req_extensions' option of the req section of the
8206 config file. They can be printed out with the -text option to req but
8207 are otherwise ignored at present.
8210 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8211 data read consists of only the final block it would not decrypted because
8212 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8213 A misplaced 'break' also meant the decrypted final block might not be
8214 copied until the next read.
8217 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8218 a few extra parameters to the DH structure: these will be useful if
8219 for example we want the value of 'q' or implement X9.42 DH.
8222 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8223 provides hooks that allow the default DSA functions or functions on a
8224 "per key" basis to be replaced. This allows hardware acceleration and
8225 hardware key storage to be handled without major modification to the
8226 library. Also added low level modexp hooks and CRYPTO_EX structure and
8227 associated functions.
8230 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8231 as "read only": it can't be written to and the buffer it points to will
8232 not be freed. Reading from a read only BIO is much more efficient than
8233 a normal memory BIO. This was added because there are several times when
8234 an area of memory needs to be read from a BIO. The previous method was
8235 to create a memory BIO and write the data to it, this results in two
8236 copies of the data and an O(n^2) reading algorithm. There is a new
8237 function BIO_new_mem_buf() which creates a read only memory BIO from
8238 an area of memory. Also modified the PKCS#7 routines to use read only
8242 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8243 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8244 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8245 but a retry condition occured while trying to read the rest.
8248 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8249 NID_pkcs7_encrypted by default: this was wrong since this should almost
8250 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8251 the encrypted data type: this is a more sensible place to put it and it
8252 allows the PKCS#12 code to be tidied up that duplicated this
8256 *) Changed obj_dat.pl script so it takes its input and output files on
8257 the command line. This should avoid shell escape redirection problems
8261 *) Initial support for certificate extension requests, these are included
8262 in things like Xenroll certificate requests. Included functions to allow
8263 extensions to be obtained and added.
8266 *) -crlf option to s_client and s_server for sending newlines as
8267 CRLF (as required by many protocols).
8270 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8272 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8273 [Ralf S. Engelschall]
8275 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8276 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8278 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8282 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8283 DH parameters/keys (q is lost during that conversion, but the resulting
8284 DH parameters contain its length).
8286 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8287 much faster than DH_generate_parameters (which creates parameters
8288 where p = 2*q + 1), and also the smaller q makes DH computations
8289 much more efficient (160-bit exponentiation instead of 1024-bit
8290 exponentiation); so this provides a convenient way to support DHE
8291 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8292 utter importance to use
8293 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8295 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8296 when such DH parameters are used, because otherwise small subgroup
8297 attacks may become possible!
8300 *) Avoid memory leak in i2d_DHparams.
8303 *) Allow the -k option to be used more than once in the enc program:
8304 this allows the same encrypted message to be read by multiple recipients.
8307 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8308 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8309 it will always use the numerical form of the OID, even if it has a short
8313 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8314 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8315 otherwise bn_mod_exp was called. In the case of hardware keys for example
8316 no private key components need be present and it might store extra data
8317 in the RSA structure, which cannot be accessed from bn_mod_exp.
8318 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8319 private key operations.
8322 *) Added support for SPARC Linux.
8325 *) pem_password_cb function type incompatibly changed from
8326 typedef int pem_password_cb(char *buf, int size, int rwflag);
8328 ....(char *buf, int size, int rwflag, void *userdata);
8329 so that applications can pass data to their callbacks:
8330 The PEM[_ASN1]_{read,write}... functions and macros now take an
8331 additional void * argument, which is just handed through whenever
8332 the password callback is called.
8333 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8335 New function SSL_CTX_set_default_passwd_cb_userdata.
8337 Compatibility note: As many C implementations push function arguments
8338 onto the stack in reverse order, the new library version is likely to
8339 interoperate with programs that have been compiled with the old
8340 pem_password_cb definition (PEM_whatever takes some data that
8341 happens to be on the stack as its last argument, and the callback
8342 just ignores this garbage); but there is no guarantee whatsoever that
8345 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8346 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8347 problems not only on Windows, but also on some Unix platforms.
8348 To avoid problematic command lines, these definitions are now in an
8349 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8350 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8353 *) MIPS III/IV assembler module is reimplemented.
8356 *) More DES library cleanups: remove references to srand/rand and
8357 delete an unused file.
8360 *) Add support for the the free Netwide assembler (NASM) under Win32,
8361 since not many people have MASM (ml) and it can be hard to obtain.
8362 This is currently experimental but it seems to work OK and pass all
8363 the tests. Check out INSTALL.W32 for info.
8366 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8367 without temporary keys kept an extra copy of the server key,
8368 and connections with temporary keys did not free everything in case
8372 *) New function RSA_check_key and new openssl rsa option -check
8373 for verifying the consistency of RSA keys.
8374 [Ulf Moeller, Bodo Moeller]
8376 *) Various changes to make Win32 compile work:
8377 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8378 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8379 comparison" warnings.
8380 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8383 *) Add a debugging option to PKCS#5 v2 key generation function: when
8384 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8385 derived keys are printed to stderr.
8388 *) Copy the flags in ASN1_STRING_dup().
8389 [Roman E. Pavlov <pre@mo.msk.ru>]
8391 *) The x509 application mishandled signing requests containing DSA
8392 keys when the signing key was also DSA and the parameters didn't match.
8394 It was supposed to omit the parameters when they matched the signing key:
8395 the verifying software was then supposed to automatically use the CA's
8396 parameters if they were absent from the end user certificate.
8398 Omitting parameters is no longer recommended. The test was also
8399 the wrong way round! This was probably due to unusual behaviour in
8400 EVP_cmp_parameters() which returns 1 if the parameters match.
8401 This meant that parameters were omitted when they *didn't* match and
8402 the certificate was useless. Certificates signed with 'ca' didn't have
8404 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8406 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8407 The interface is as follows:
8408 Applications can use
8409 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8410 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8411 "off" is now the default.
8412 The library internally uses
8413 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8414 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8415 to disable memory-checking temporarily.
8417 Some inconsistent states that previously were possible (and were
8418 even the default) are now avoided.
8420 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8421 with each memory chunk allocated; this is occasionally more helpful
8422 than just having a counter.
8424 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8426 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8430 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8431 which largely parallels "options", but is for changing API behaviour,
8432 whereas "options" are about protocol behaviour.
8433 Initial "mode" flags are:
8435 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8436 a single record has been written.
8437 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8438 retries use the same buffer location.
8439 (But all of the contents must be
8443 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8446 *) Fix problems with no-hmac etc.
8447 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8449 *) New functions RSA_get_default_method(), RSA_set_method() and
8450 RSA_get_method(). These allows replacement of RSA_METHODs without having
8451 to mess around with the internals of an RSA structure.
8454 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8455 Also really enable memory leak checks in openssl.c and in some
8457 [Chad C. Mulligan, Bodo Moeller]
8459 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8460 up the length of negative integers. This has now been simplified to just
8461 store the length when it is first determined and use it later, rather
8462 than trying to keep track of where data is copied and updating it to
8464 [Steve Henson, reported by Brien Wheeler
8465 <bwheeler@authentica-security.com>]
8467 *) Add a new function PKCS7_signatureVerify. This allows the verification
8468 of a PKCS#7 signature but with the signing certificate passed to the
8469 function itself. This contrasts with PKCS7_dataVerify which assumes the
8470 certificate is present in the PKCS#7 structure. This isn't always the
8471 case: certificates can be omitted from a PKCS#7 structure and be
8472 distributed by "out of band" means (such as a certificate database).
8475 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8476 function prototypes in pem.h, also change util/mkdef.pl to add the
8477 necessary function names.
8480 *) mk1mf.pl (used by Windows builds) did not properly read the
8481 options set by Configure in the top level Makefile, and Configure
8482 was not even able to write more than one option correctly.
8483 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8486 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8487 file to be loaded from a BIO or FILE pointer. The BIO version will
8488 for example allow memory BIOs to contain config info.
8491 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8492 Whoever hopes to achieve shared-library compatibility across versions
8493 must use this, not the compile-time macro.
8494 (Exercise 0.9.4: Which is the minimum library version required by
8496 Note: All this applies only to multi-threaded programs, others don't
8500 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8501 through a BIO pair triggered the default case, i.e.
8502 SSLerr(...,SSL_R_UNKNOWN_STATE).
8505 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8506 can use the SSL library even if none of the specific BIOs is
8510 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8511 for the encoded length.
8512 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8514 *) Add initial documentation of the X509V3 functions.
8517 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8518 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8519 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8520 secure PKCS#8 private key format with a high iteration count.
8523 *) Fix determination of Perl interpreter: A perl or perl5
8524 _directory_ in $PATH was also accepted as the interpreter.
8525 [Ralf S. Engelschall]
8527 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8528 wrong with it but it was very old and did things like calling
8529 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8533 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8534 to use the new extension code.
8537 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8538 with macros. This should make it easier to change their form, add extra
8539 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8543 *) Add to configuration table a new entry that can specify an alternative
8544 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8545 according to Mark Crispin <MRC@Panda.COM>.
8549 *) DES CBC did not update the IV. Weird.
8552 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8553 Changing the behaviour of the former might break existing programs --
8554 where IV updating is needed, des_ncbc_encrypt can be used.
8557 *) When bntest is run from "make test" it drives bc to check its
8558 calculations, as well as internally checking them. If an internal check
8559 fails, it needs to cause bc to give a non-zero result or make test carries
8560 on without noticing the failure. Fixed.
8563 *) DES library cleanups.
8566 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8567 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8568 ciphers. NOTE: although the key derivation function has been verified
8569 against some published test vectors it has not been extensively tested
8570 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8574 *) Instead of "mkdir -p", which is not fully portable, use new
8575 Perl script "util/mkdir-p.pl".
8578 *) Rewrite the way password based encryption (PBE) is handled. It used to
8579 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8580 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8581 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8582 the 'parameter' field of the AlgorithmIdentifier is passed to the
8583 underlying key generation function so it must do its own ASN1 parsing.
8584 This has also changed the EVP_PBE_CipherInit() function which now has a
8585 'parameter' argument instead of literal salt and iteration count values
8586 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8589 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8590 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8591 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8592 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8593 value was just used as a "magic string" and not used directly its
8594 value doesn't matter.
8597 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8601 *) "linux-sparc64" configuration (ultrapenguin).
8602 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8603 "linux-sparc" configuration.
8604 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8606 *) config now generates no-xxx options for missing ciphers.
8609 *) Support the EBCDIC character set (work in progress).
8610 File ebcdic.c not yet included because it has a different license.
8611 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8613 *) Support BS2000/OSD-POSIX.
8614 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8616 *) Make callbacks for key generation use void * instead of char *.
8619 *) Make S/MIME samples compile (not yet tested).
8622 *) Additional typesafe stacks.
8625 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8629 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8631 *) New configuration variant "sco5-gcc".
8633 *) Updated some demos.
8634 [Sean O Riordain, Wade Scholine]
8636 *) Add missing BIO_free at exit of pkcs12 application.
8639 *) Fix memory leak in conf.c.
8642 *) Updates for Win32 to assembler version of MD5.
8645 *) Set #! path to perl in apps/der_chop to where we found it
8646 instead of using a fixed path.
8649 *) SHA library changes for irix64-mips4-cc.
8652 *) Improvements for VMS support.
8656 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8658 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8659 This also avoids the problems with SC4.2 and unpatched SC5.
8660 [Andy Polyakov <appro@fy.chalmers.se>]
8662 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8663 These are required because of the typesafe stack would otherwise break
8664 existing code. If old code used a structure member which used to be STACK
8665 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8666 sk_num or sk_value it would produce an error because the num, data members
8667 are not present in STACK_OF. Now it just produces a warning. sk_set
8668 replaces the old method of assigning a value to sk_value
8669 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8670 that does this will no longer work (and should use sk_set instead) but
8671 this could be regarded as a "questionable" behaviour anyway.
8674 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8675 correctly handle encrypted S/MIME data.
8678 *) Change type of various DES function arguments from des_cblock
8679 (which means, in function argument declarations, pointer to char)
8680 to des_cblock * (meaning pointer to array with 8 char elements),
8681 which allows the compiler to do more typechecking; it was like
8682 that back in SSLeay, but with lots of ugly casts.
8684 Introduce new type const_des_cblock.
8687 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8688 problems: find RecipientInfo structure that matches recipient certificate
8689 and initialise the ASN1 structures properly based on passed cipher.
8692 *) Belatedly make the BN tests actually check the results.
8695 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8696 to and from BNs: it was completely broken. New compilation option
8697 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8698 key elements as negative integers.
8701 *) Reorganize and speed up MD5.
8702 [Andy Polyakov <appro@fy.chalmers.se>]
8705 [Richard Levitte <richard@levitte.org>]
8707 *) New option -out to asn1parse to allow the parsed structure to be
8708 output to a file. This is most useful when combined with the -strparse
8709 option to examine the output of things like OCTET STRINGS.
8712 *) Make SSL library a little more fool-proof by not requiring any longer
8713 that SSL_set_{accept,connect}_state be called before
8714 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8715 in many applications because usually everything *appeared* to work as
8716 intended anyway -- now it really works as intended).
8719 *) Move openssl.cnf out of lib/.
8722 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8723 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8724 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8725 [Ralf S. Engelschall]
8727 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8728 handle PKCS#7 enveloped data properly.
8729 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8731 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8732 copying pointers. The cert_st handling is changed by this in
8733 various ways (and thus what used to be known as ctx->default_cert
8734 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8735 any longer when s->cert does not give us what we need).
8736 ssl_cert_instantiate becomes obsolete by this change.
8737 As soon as we've got the new code right (possibly it already is?),
8738 we have solved a couple of bugs of the earlier code where s->cert
8739 was used as if it could not have been shared with other SSL structures.
8741 Note that using the SSL API in certain dirty ways now will result
8742 in different behaviour than observed with earlier library versions:
8743 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8744 does not influence s as it used to.
8746 In order to clean up things more thoroughly, inside SSL_SESSION
8747 we don't use CERT any longer, but a new structure SESS_CERT
8748 that holds per-session data (if available); currently, this is
8749 the peer's certificate chain and, for clients, the server's certificate
8750 and temporary key. CERT holds only those values that can have
8751 meaningful defaults in an SSL_CTX.
8754 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8755 from the internal representation. Various PKCS#7 fixes: remove some
8756 evil casts and set the enc_dig_alg field properly based on the signing
8760 *) Allow PKCS#12 password to be set from the command line or the
8761 environment. Let 'ca' get its config file name from the environment
8762 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8766 *) Allow certificate policies extension to use an IA5STRING for the
8767 organization field. This is contrary to the PKIX definition but
8768 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8772 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8773 without disallowing inline assembler and the like for non-pedantic builds.
8776 *) Support Borland C++ builder.
8777 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8782 *) SHA-1 cleanups and performance enhancements.
8783 [Andy Polyakov <appro@fy.chalmers.se>]
8785 *) Sparc v8plus assembler for the bignum library.
8786 [Andy Polyakov <appro@fy.chalmers.se>]
8788 *) Accept any -xxx and +xxx compiler options in Configure.
8791 *) Update HPUX configuration.
8794 *) Add missing sk_<type>_unshift() function to safestack.h
8795 [Ralf S. Engelschall]
8797 *) New function SSL_CTX_use_certificate_chain_file that sets the
8798 "extra_cert"s in addition to the certificate. (This makes sense
8799 only for "PEM" format files, as chains as a whole are not
8803 *) Support verify_depth from the SSL API.
8804 x509_vfy.c had what can be considered an off-by-one-error:
8805 Its depth (which was not part of the external interface)
8806 was actually counting the number of certificates in a chain;
8807 now it really counts the depth.
8810 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8811 instead of X509err, which often resulted in confusing error
8812 messages since the error codes are not globally unique
8813 (e.g. an alleged error in ssl3_accept when a certificate
8814 didn't match the private key).
8816 *) New function SSL_CTX_set_session_id_context that allows to set a default
8817 value (so that you don't need SSL_set_session_id_context for each
8818 connection using the SSL_CTX).
8821 *) OAEP decoding bug fix.
8824 *) Support INSTALL_PREFIX for package builders, as proposed by
8828 *) New Configure options "threads" and "no-threads". For systems
8829 where the proper compiler options are known (currently Solaris
8830 and Linux), "threads" is the default.
8833 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8836 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8837 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8838 such as /usr/local/bin.
8841 *) "make linux-shared" to build shared libraries.
8842 [Niels Poppe <niels@netbox.org>]
8844 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8847 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8848 extension adding in x509 utility.
8851 *) Remove NOPROTO sections and error code comments.
8854 *) Partial rewrite of the DEF file generator to now parse the ANSI
8858 *) New Configure options --prefix=DIR and --openssldir=DIR.
8861 *) Complete rewrite of the error code script(s). It is all now handled
8862 by one script at the top level which handles error code gathering,
8863 header rewriting and C source file generation. It should be much better
8864 than the old method: it now uses a modified version of Ulf's parser to
8865 read the ANSI prototypes in all header files (thus the old K&R definitions
8866 aren't needed for error creation any more) and do a better job of
8867 translating function codes into names. The old 'ASN1 error code imbedded
8868 in a comment' is no longer necessary and it doesn't use .err files which
8869 have now been deleted. Also the error code call doesn't have to appear all
8870 on one line (which resulted in some large lines...).
8873 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8876 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8877 0 (which usually indicates a closed connection), but continue reading.
8880 *) Fix some race conditions.
8883 *) Add support for CRL distribution points extension. Add Certificate
8884 Policies and CRL distribution points documentation.
8887 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8890 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8891 8 of keying material. Merlin has also confirmed interop with this fix
8892 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8893 [Merlin Hughes <merlin@baltimore.ie>]
8895 *) Fix lots of warnings.
8896 [Richard Levitte <levitte@stacken.kth.se>]
8898 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8899 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8900 [Richard Levitte <levitte@stacken.kth.se>]
8902 *) Fix problems with sizeof(long) == 8.
8903 [Andy Polyakov <appro@fy.chalmers.se>]
8905 *) Change functions to ANSI C.
8908 *) Fix typos in error codes.
8909 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8911 *) Remove defunct assembler files from Configure.
8914 *) SPARC v8 assembler BIGNUM implementation.
8915 [Andy Polyakov <appro@fy.chalmers.se>]
8917 *) Support for Certificate Policies extension: both print and set.
8918 Various additions to support the r2i method this uses.
8921 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8922 return a const string when you are expecting an allocated buffer.
8925 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8926 types DirectoryString and DisplayText.
8929 *) Add code to allow r2i extensions to access the configuration database,
8930 add an LHASH database driver and add several ctx helper functions.
8933 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8934 fail when they extended the size of a BIGNUM.
8937 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8938 support typesafe stack.
8941 *) Fix typo in SSL_[gs]et_options().
8942 [Nils Frostberg <nils@medcom.se>]
8944 *) Delete various functions and files that belonged to the (now obsolete)
8945 old X509V3 handling code.
8948 *) New Configure option "rsaref".
8951 *) Don't auto-generate pem.h.
8954 *) Introduce type-safe ASN.1 SETs.
8957 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8958 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8960 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8961 that links with OpenSSL (well at least cause lots of warnings), but fear
8962 not: the conversion is trivial, and it eliminates loads of evil casts. A
8963 few STACKed things have been converted already. Feel free to convert more.
8964 In the fullness of time, I'll do away with the STACK type altogether.
8967 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8968 specified in <certfile> by updating the entry in the index.txt file.
8969 This way one no longer has to edit the index.txt file manually for
8970 revoking a certificate. The -revoke option does the gory details now.
8971 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8973 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8974 `-text' option at all and this way the `-noout -text' combination was
8975 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8976 [Ralf S. Engelschall]
8978 *) Make sure a corresponding plain text error message exists for the
8979 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8980 verify callback function determined that a certificate was revoked.
8981 [Ralf S. Engelschall]
8983 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8984 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8985 all available cipers including rc5, which was forgotten until now.
8986 In order to let the testing shell script know which algorithms
8987 are available, a new (up to now undocumented) command
8988 "openssl list-cipher-commands" is used.
8991 *) Bugfix: s_client occasionally would sleep in select() when
8992 it should have checked SSL_pending() first.
8995 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8996 the raw DSA values prior to ASN.1 encoding.
8999 *) Tweaks to Configure
9000 [Niels Poppe <niels@netbox.org>]
9002 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
9006 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
9009 *) New config option to avoid instructions that are illegal on the 80386.
9010 The default code is faster, but requires at least a 486.
9013 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
9014 SSL2_SERVER_VERSION (not used at all) macros, which are now the
9015 same as SSL2_VERSION anyway.
9018 *) New "-showcerts" option for s_client.
9021 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
9022 application. Various cleanups and fixes.
9025 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
9026 modify error routines to work internally. Add error codes and PBE init
9027 to library startup routines.
9030 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
9031 packing functions to asn1 and evp. Changed function names and error
9032 codes along the way.
9035 *) PKCS12 integration: and so it begins... First of several patches to
9036 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
9037 objects to objects.h
9040 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
9041 and display support for Thawte strong extranet extension.
9044 *) Add LinuxPPC support.
9045 [Jeff Dubrule <igor@pobox.org>]
9047 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
9048 bn_div_words in alpha.s.
9049 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
9051 *) Make sure the RSA OAEP test is skipped under -DRSAref because
9052 OAEP isn't supported when OpenSSL is built with RSAref.
9053 [Ulf Moeller <ulf@fitug.de>]
9055 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
9056 so they no longer are missing under -DNOPROTO.
9057 [Soren S. Jorvang <soren@t.dk>]
9060 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
9062 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
9063 doesn't work when the session is reused. Coming soon!
9066 *) Fix a security hole, that allows sessions to be reused in the wrong
9067 context thus bypassing client cert protection! All software that uses
9068 client certs and session caches in multiple contexts NEEDS PATCHING to
9069 allow session reuse! A fuller solution is in the works.
9070 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
9072 *) Some more source tree cleanups (removed obsolete files
9073 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
9074 permission on "config" script to be executable) and a fix for the INSTALL
9076 [Ulf Moeller <ulf@fitug.de>]
9078 *) Remove some legacy and erroneous uses of malloc, free instead of
9080 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
9082 *) Make rsa_oaep_test return non-zero on error.
9083 [Ulf Moeller <ulf@fitug.de>]
9085 *) Add support for native Solaris shared libraries. Configure
9086 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
9087 if someone would make that last step automatic.
9088 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
9090 *) ctx_size was not built with the right compiler during "make links". Fixed.
9093 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
9094 except NULL ciphers". This means the default cipher list will no longer
9095 enable NULL ciphers. They need to be specifically enabled e.g. with
9096 the string "DEFAULT:eNULL".
9099 *) Fix to RSA private encryption routines: if p < q then it would
9100 occasionally produce an invalid result. This will only happen with
9101 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
9104 *) Be less restrictive and allow also `perl util/perlpath.pl
9105 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
9106 because this way one can also use an interpreter named `perl5' (which is
9107 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
9108 installed as `perl').
9109 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9111 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
9112 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9114 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
9115 advapi32.lib to Win32 build and change the pem test comparision
9116 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
9117 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
9118 and crypto/des/ede_cbcm_enc.c.
9121 *) DES quad checksum was broken on big-endian architectures. Fixed.
9124 *) Comment out two functions in bio.h that aren't implemented. Fix up the
9125 Win32 test batch file so it (might) work again. The Win32 test batch file
9126 is horrible: I feel ill....
9129 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
9130 in e_os.h. Audit of header files to check ANSI and non ANSI
9131 sections: 10 functions were absent from non ANSI section and not exported
9132 from Windows DLLs. Fixed up libeay.num for new functions.
9135 *) Make `openssl version' output lines consistent.
9136 [Ralf S. Engelschall]
9138 *) Fix Win32 symbol export lists for BIO functions: Added
9139 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9140 to ms/libeay{16,32}.def.
9141 [Ralf S. Engelschall]
9143 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9144 fine under Unix and passes some trivial tests I've now added. But the
9145 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9146 added to make sure no one expects that this stuff really works in the
9147 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9148 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9150 [Ralf S. Engelschall]
9152 *) Fix the generation of two part addresses in perl.
9153 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9155 *) Add config entry for Linux on MIPS.
9156 [John Tobey <jtobey@channel1.com>]
9158 *) Make links whenever Configure is run, unless we are on Windoze.
9161 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9162 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9166 *) Add a useful kludge to allow package maintainers to specify compiler and
9167 other platforms details on the command line without having to patch the
9168 Configure script everytime: One now can use ``perl Configure
9169 <id>:<details>'', i.e. platform ids are allowed to have details appended
9170 to them (seperated by colons). This is treated as there would be a static
9171 pre-configured entry in Configure's %table under key <id> with value
9172 <details> and ``perl Configure <id>'' is called. So, when you want to
9173 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9174 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9175 now, which overrides the FreeBSD-elf entry on-the-fly.
9176 [Ralf S. Engelschall]
9178 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9181 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9182 on the `perl Configure ...' command line. This way one can compile
9183 OpenSSL libraries with Position Independent Code (PIC) which is needed
9184 for linking it into DSOs.
9185 [Ralf S. Engelschall]
9187 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9191 *) Cleaned up the LICENSE document: The official contact for any license
9192 questions now is the OpenSSL core team under openssl-core@openssl.org.
9193 And add a paragraph about the dual-license situation to make sure people
9194 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9195 to the OpenSSL toolkit.
9196 [Ralf S. Engelschall]
9198 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9199 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9200 Additonally cleaned up the `make links' target: Remove unnecessary
9201 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9202 to speed processing and no longer clutter the display with confusing
9203 stuff. Instead only the actually done links are displayed.
9204 [Ralf S. Engelschall]
9206 *) Permit null encryption ciphersuites, used for authentication only. It used
9207 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9208 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9212 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9213 signed attributes when verifying signatures (this would break them),
9214 the detached data encoding was wrong and public keys obtained using
9215 X509_get_pubkey() weren't freed.
9218 *) Add text documentation for the BUFFER functions. Also added a work around
9219 to a Win95 console bug. This was triggered by the password read stuff: the
9220 last character typed gets carried over to the next fread(). If you were
9221 generating a new cert request using 'req' for example then the last
9222 character of the passphrase would be CR which would then enter the first
9226 *) Added the new `Includes OpenSSL Cryptography Software' button as
9227 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9228 button and can be used by applications based on OpenSSL to show the
9229 relationship to the OpenSSL project.
9230 [Ralf S. Engelschall]
9232 *) Remove confusing variables in function signatures in files
9233 ssl/ssl_lib.c and ssl/ssl.h.
9234 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9236 *) Don't install bss_file.c under PREFIX/include/
9237 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9239 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9240 functions that return function pointers and has support for NT specific
9241 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9242 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9243 unsigned to signed types: this was killing the Win32 compile.
9246 *) Add new certificate file to stack functions,
9247 SSL_add_dir_cert_subjects_to_stack() and
9248 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9249 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9250 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9251 This means that Apache-SSL and similar packages don't have to mess around
9252 to add as many CAs as they want to the preferred list.
9255 *) Experiment with doxygen documentation. Currently only partially applied to
9257 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9258 openssl.doxy as the configuration file.
9261 *) Get rid of remaining C++-style comments which strict C compilers hate.
9262 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9264 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9265 compiled in by default: it has problems with large keys.
9268 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9269 DH private keys and/or callback functions which directly correspond to
9270 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9271 is needed for applications which have to configure certificates on a
9272 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9274 For the RSA certificate situation is makes no difference, but
9275 for the DSA certificate situation this fixes the "no shared cipher"
9276 problem where the OpenSSL cipher selection procedure failed because the
9277 temporary keys were not overtaken from the context and the API provided
9278 no way to reconfigure them.
9279 The new functions now let applications reconfigure the stuff and they
9280 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9281 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9282 non-public-API function ssl_cert_instantiate() is used as a helper
9283 function and also to reduce code redundancy inside ssl_rsa.c.
9284 [Ralf S. Engelschall]
9286 *) Move s_server -dcert and -dkey options out of the undocumented feature
9287 area because they are useful for the DSA situation and should be
9288 recognized by the users.
9289 [Ralf S. Engelschall]
9291 *) Fix the cipher decision scheme for export ciphers: the export bits are
9292 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9293 SSL_EXP_MASK. So, the original variable has to be used instead of the
9294 already masked variable.
9295 [Richard Levitte <levitte@stacken.kth.se>]
9297 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9298 [Richard Levitte <levitte@stacken.kth.se>]
9300 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9301 from `int' to `unsigned int' because it's a length and initialized by
9302 EVP_DigestFinal() which expects an `unsigned int *'.
9303 [Richard Levitte <levitte@stacken.kth.se>]
9305 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9306 script. Instead use the usual Shell->Perl transition trick.
9307 [Ralf S. Engelschall]
9309 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9310 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9311 -noout -modulus' as it's already the case for `openssl rsa -noout
9312 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9313 currently the public key is printed (a decision which was already done by
9314 `openssl dsa -modulus' in the past) which serves a similar purpose.
9315 Additionally the NO_RSA no longer completely removes the whole -modulus
9316 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9318 [Ralf S. Engelschall]
9320 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9321 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9322 [Arne Ansper <arne@ats.cyber.ee>]
9324 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9325 to be added. Now both 'req' and 'ca' can use new objects defined in the
9329 *) Add cool BIO that does syslog (or event log on NT).
9330 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9332 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9333 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9334 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9335 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9338 *) Add preliminary config info for new extension code.
9341 *) Make RSA_NO_PADDING really use no padding.
9342 [Ulf Moeller <ulf@fitug.de>]
9344 *) Generate errors when private/public key check is done.
9347 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9348 for some CRL extensions and new objects added.
9351 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9352 key usage extension and fuller support for authority key id.
9355 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9356 padding method for RSA, which is recommended for new applications in PKCS
9357 #1 v2.0 (RFC 2437, October 1998).
9358 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9359 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9360 against Bleichbacher's attack on RSA.
9361 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9364 *) Updates to the new SSL compression code
9365 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9367 *) Fix so that the version number in the master secret, when passed
9368 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9369 (because the server will not accept higher), that the version number
9370 is 0x03,0x01, not 0x03,0x00
9371 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9373 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9374 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9375 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9378 *) Support for RAW extensions where an arbitrary extension can be
9379 created by including its DER encoding. See apps/openssl.cnf for
9383 *) Make sure latest Perl versions don't interpret some generated C array
9384 code as Perl array code in the crypto/err/err_genc.pl script.
9385 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9387 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9388 not many people have the assembler. Various Win32 compilation fixes and
9389 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9393 *) Modify configure script 'Configure' to automatically create crypto/date.h
9394 file under Win32 and also build pem.h from pem.org. New script
9395 util/mkfiles.pl to create the MINFO file on environments that can't do a
9396 'make files': perl util/mkfiles.pl >MINFO should work.
9399 *) Major rework of DES function declarations, in the pursuit of correctness
9400 and purity. As a result, many evil casts evaporated, and some weirdness,
9401 too. You may find this causes warnings in your code. Zapping your evil
9402 casts will probably fix them. Mostly.
9405 *) Fix for a typo in asn1.h. Bug fix to object creation script
9406 obj_dat.pl. It considered a zero in an object definition to mean
9407 "end of object": none of the objects in objects.h have any zeros
9408 so it wasn't spotted.
9409 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9411 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9412 Masking (CBCM). In the absence of test vectors, the best I have been able
9413 to do is check that the decrypt undoes the encrypt, so far. Send me test
9414 vectors if you have them.
9417 *) Correct calculation of key length for export ciphers (too much space was
9418 allocated for null ciphers). This has not been tested!
9421 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9422 message is now correct (it understands "crypto" and "ssl" on its
9423 command line). There is also now an "update" option. This will update
9424 the util/ssleay.num and util/libeay.num files with any new functions.
9426 perl util/mkdef.pl crypto ssl update
9427 it will update them.
9430 *) Overhauled the Perl interface (perl/*):
9431 - ported BN stuff to OpenSSL's different BN library
9432 - made the perl/ source tree CVS-aware
9433 - renamed the package from SSLeay to OpenSSL (the files still contain
9434 their history because I've copied them in the repository)
9435 - removed obsolete files (the test scripts will be replaced
9436 by better Test::Harness variants in the future)
9437 [Ralf S. Engelschall]
9439 *) First cut for a very conservative source tree cleanup:
9440 1. merge various obsolete readme texts into doc/ssleay.txt
9441 where we collect the old documents and readme texts.
9442 2. remove the first part of files where I'm already sure that we no
9443 longer need them because of three reasons: either they are just temporary
9444 files which were left by Eric or they are preserved original files where
9445 I've verified that the diff is also available in the CVS via "cvs diff
9446 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9447 the crypto/md/ stuff).
9448 [Ralf S. Engelschall]
9450 *) More extension code. Incomplete support for subject and issuer alt
9451 name, issuer and authority key id. Change the i2v function parameters
9452 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9453 what that's for :-) Fix to ASN1 macro which messed up
9454 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9457 *) Preliminary support for ENUMERATED type. This is largely copied from the
9461 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9462 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9464 *) Make sure `make rehash' target really finds the `openssl' program.
9465 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9467 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9468 like to hear about it if this slows down other processors.
9471 *) Add CygWin32 platform information to Configure script.
9472 [Alan Batie <batie@aahz.jf.intel.com>]
9474 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9475 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9477 *) New program nseq to manipulate netscape certificate sequences
9480 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9484 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9485 but the BN code had some problems that would cause failures when
9486 doing certificate verification and some other functions.
9487 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9489 *) Add ASN1 and PEM code to support netscape certificate sequences.
9492 *) Add ASN1 and PEM code to support netscape certificate sequences.
9495 *) Add several PKIX and private extended key usage OIDs.
9498 *) Modify the 'ca' program to handle the new extension code. Modify
9499 openssl.cnf for new extension format, add comments.
9502 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9503 and add a sample to openssl.cnf so req -x509 now adds appropriate
9507 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9508 error code, add initial support to X509_print() and x509 application.
9511 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9512 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9513 stuff is currently isolated and isn't even compiled yet.
9516 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9517 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9518 Removed the versions check from X509 routines when loading extensions:
9519 this allows certain broken certificates that don't set the version
9520 properly to be processed.
9523 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9524 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9525 can still be regenerated with "make depend".
9528 *) Spelling mistake in C version of CAST-128.
9529 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9531 *) Changes to the error generation code. The perl script err-code.pl
9532 now reads in the old error codes and retains the old numbers, only
9533 adding new ones if necessary. It also only changes the .err files if new
9534 codes are added. The makefiles have been modified to only insert errors
9535 when needed (to avoid needlessly modifying header files). This is done
9536 by only inserting errors if the .err file is newer than the auto generated
9537 C file. To rebuild all the error codes from scratch (the old behaviour)
9538 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9539 or delete all the .err files.
9542 *) CAST-128 was incorrectly implemented for short keys. The C version has
9543 been fixed, but is untested. The assembler versions are also fixed, but
9544 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9545 to regenerate it if needed.
9546 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9547 Hagino <itojun@kame.net>]
9549 *) File was opened incorrectly in randfile.c.
9550 [Ulf Möller <ulf@fitug.de>]
9552 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9553 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9554 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9555 al: it's just almost always a UTCTime. Note this patch adds new error
9556 codes so do a "make errors" if there are problems.
9559 *) Correct Linux 1 recognition in config.
9560 [Ulf Möller <ulf@fitug.de>]
9562 *) Remove pointless MD5 hash when using DSA keys in ca.
9563 [Anonymous <nobody@replay.com>]
9565 *) Generate an error if given an empty string as a cert directory. Also
9566 generate an error if handed NULL (previously returned 0 to indicate an
9567 error, but didn't set one).
9568 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9570 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9573 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9574 parameters. This was causing a warning which killed off the Win32 compile.
9577 *) Remove C++ style comments from crypto/bn/bn_local.h.
9578 [Neil Costigan <neil.costigan@celocom.com>]
9580 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9581 based on a text string, looking up short and long names and finally
9582 "dot" format. The "dot" format stuff didn't work. Added new function
9583 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9584 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9585 OID is not part of the table.
9588 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9589 X509_LOOKUP_by_alias().
9592 *) Sort openssl functions by name.
9595 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9596 encryption from sample DSA keys (in case anyone is interested the password
9600 *) Make _all_ *_free functions accept a NULL pointer.
9601 [Frans Heymans <fheymans@isaserver.be>]
9603 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9605 [Anonymous <nobody@replay.com>]
9607 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9608 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9610 *) Don't blow it for numeric -newkey arguments to apps/req.
9611 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9613 *) Temp key "for export" tests were wrong in s3_srvr.c.
9614 [Anonymous <nobody@replay.com>]
9616 *) Add prototype for temp key callback functions
9617 SSL_CTX_set_tmp_{rsa,dh}_callback().
9620 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9621 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9624 *) X509_name_add_entry() freed the wrong thing after an error.
9625 [Arne Ansper <arne@ats.cyber.ee>]
9627 *) rsa_eay.c would attempt to free a NULL context.
9628 [Arne Ansper <arne@ats.cyber.ee>]
9630 *) BIO_s_socket() had a broken should_retry() on Windoze.
9631 [Arne Ansper <arne@ats.cyber.ee>]
9633 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9634 [Arne Ansper <arne@ats.cyber.ee>]
9636 *) Make sure the already existing X509_STORE->depth variable is initialized
9637 in X509_STORE_new(), but document the fact that this variable is still
9638 unused in the certificate verification process.
9639 [Ralf S. Engelschall]
9641 *) Fix the various library and apps files to free up pkeys obtained from
9642 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9645 *) Fix reference counting in X509_PUBKEY_get(). This makes
9646 demos/maurice/example2.c work, amongst others, probably.
9647 [Steve Henson and Ben Laurie]
9649 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9650 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9651 are no longer created. This way we have a single and consistent command
9652 line interface `openssl <command>', similar to `cvs <command>'.
9653 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9655 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9656 BIT STRING wrapper always have zero unused bits.
9659 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9662 *) Make the top-level INSTALL documentation easier to understand.
9665 *) Makefiles updated to exit if an error occurs in a sub-directory
9666 make (including if user presses ^C) [Paul Sutton]
9668 *) Make Montgomery context stuff explicit in RSA data structure.
9671 *) Fix build order of pem and err to allow for generated pem.h.
9674 *) Fix renumbering bug in X509_NAME_delete_entry().
9677 *) Enhanced the err-ins.pl script so it makes the error library number
9678 global and can add a library name. This is needed for external ASN1 and
9679 other error libraries.
9682 *) Fixed sk_insert which never worked properly.
9685 *) Fix ASN1 macros so they can handle indefinite length construted
9686 EXPLICIT tags. Some non standard certificates use these: they can now
9690 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9691 into a single doc/ssleay.txt bundle. This way the information is still
9692 preserved but no longer messes up this directory. Now it's new room for
9693 the new set of documenation files.
9694 [Ralf S. Engelschall]
9696 *) SETs were incorrectly DER encoded. This was a major pain, because they
9697 shared code with SEQUENCEs, which aren't coded the same. This means that
9698 almost everything to do with SETs or SEQUENCEs has either changed name or
9699 number of arguments.
9700 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9702 *) Fix test data to work with the above.
9705 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9706 was already fixed by Eric for 0.9.1 it seems.
9707 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9709 *) Autodetect FreeBSD3.
9712 *) Fix various bugs in Configure. This affects the following platforms:
9716 unixware-2.0-pentium
9720 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9721 before they are needed.
9724 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9728 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9730 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9731 changed SSLeay to OpenSSL in version strings.
9732 [Ralf S. Engelschall]
9734 *) Some fixups to the top-level documents.
9737 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9738 because the symlink to include/ was missing.
9739 [Ralf S. Engelschall]
9741 *) Incorporated the popular no-RSA/DSA-only patches
9742 which allow to compile a RSA-free SSLeay.
9743 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9745 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9746 when "ssleay" is still not found.
9747 [Ralf S. Engelschall]
9749 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9750 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9752 *) Updated the README file.
9753 [Ralf S. Engelschall]
9755 *) Added various .cvsignore files in the CVS repository subdirs
9756 to make a "cvs update" really silent.
9757 [Ralf S. Engelschall]
9759 *) Recompiled the error-definition header files and added
9760 missing symbols to the Win32 linker tables.
9761 [Ralf S. Engelschall]
9763 *) Cleaned up the top-level documents;
9764 o new files: CHANGES and LICENSE
9765 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9766 o merged COPYRIGHT into LICENSE
9767 o removed obsolete TODO file
9768 o renamed MICROSOFT to INSTALL.W32
9769 [Ralf S. Engelschall]
9771 *) Removed dummy files from the 0.9.1b source tree:
9772 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9773 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9774 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9775 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9776 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9777 [Ralf S. Engelschall]
9779 *) Added various platform portability fixes.
9782 *) The Genesis of the OpenSSL rpject:
9783 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9784 Young and Tim J. Hudson created while they were working for C2Net until
9786 [The OpenSSL Project]
9789 Changes between 0.9.0b and 0.9.1b [not released]
9791 *) Updated a few CA certificates under certs/
9794 *) Changed some BIGNUM api stuff.
9797 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9798 DGUX x86, Linux Alpha, etc.
9801 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9802 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9806 *) Add -strparse option to asn1pars program which parses nested
9808 [Dr Stephen Henson <shenson@bigfoot.com>]
9810 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9813 *) DSA fix for "ca" program.
9816 *) Added "-genkey" option to "dsaparam" program.
9819 *) Added RIPE MD160 (rmd160) message digest.
9822 *) Added -a (all) option to "ssleay version" command.
9825 *) Added PLATFORM define which is the id given to Configure.
9828 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9831 *) Extended the ASN.1 parser routines.
9834 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9837 *) Added a BN_CTX to the BN library.
9840 *) Fixed the weak key values in DES library
9843 *) Changed API in EVP library for cipher aliases.
9846 *) Added support for RC2/64bit cipher.
9849 *) Converted the lhash library to the crypto/mem.c functions.
9852 *) Added more recognized ASN.1 object ids.
9855 *) Added more RSA padding checks for SSL/TLS.
9858 *) Added BIO proxy/filter functionality.
9861 *) Added extra_certs to SSL_CTX which can be used
9862 send extra CA certificates to the client in the CA cert chain sending
9863 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9866 *) Now Fortezza is denied in the authentication phase because
9867 this is key exchange mechanism is not supported by SSLeay at all.
9870 *) Additional PKCS1 checks.
9873 *) Support the string "TLSv1" for all TLS v1 ciphers.
9876 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9877 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9880 *) Fixed a few memory leaks.
9883 *) Fixed various code and comment typos.
9886 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9887 bytes sent in the client random.
9888 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob