5 Changes between 1.0.1 and 1.1.0 [xx XXX xxxx]
7 *) Add support for HMAC DRBG from SP800-90. Update algorithm and POST
11 *) Add GCM support to TLS library. Some custom code is needed to split
12 the IV between the fixed (from PRF) and explicit (from TLS record)
13 portions. This adds all GCM ciphersuites supported by RFC5288 and
14 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
15 add a special AESGCM string for GCM only.
18 *) Expand range of ctrls for AES GCM. Permit setting invocation
19 field on decrypt and retrieval of invocation field only on encrypt.
22 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
23 As required by RFC5289 these ciphersuites cannot be used if for
24 versions of TLS earlier than 1.2.
27 *) Add functions FIPS_module_version() and FIPS_module_version_text()
28 to return numberical and string versions of the FIPS module number.
31 *) Rename FIPS_mode_set and FIPS_mode to FIPS_module_mode_set and
32 FIPS_module_mode. FIPS_mode and FIPS_mode_set will be implmeneted
33 outside the validated module in the FIPS capable OpenSSL.
36 *) Minor change to DRBG entropy callback semantics. In some cases
37 there is no mutiple of the block length between min_len and
38 max_len. Allow the callback to return more than max_len bytes
39 of entropy but discard any extra: it is the callback's responsibility
40 to ensure that the extra data discarded does not impact the
41 requested amount of entropy.
44 *) Add PRNG security strength checks to RSA, DSA and ECDSA using
45 information in FIPS186-3, SP800-57 and SP800-131A.
48 *) CCM support via EVP. Interface is very similar to GCM case except we
49 must supply all data in one chunk (i.e. no update, final) and the
50 message length must be supplied if AAD is used. Add algorithm test
54 *) Initial version of POST overhaul. Add POST callback to allow the status
55 of POST to be monitored and/or failures induced. Modify fips_test_suite
56 to use callback. Always run all selftests even if one fails.
59 *) XTS support including algorithm test driver in the fips_gcmtest program.
60 Note: this does increase the maximum key length from 32 to 64 bytes but
61 there should be no binary compatibility issues as existing applications
62 will never use XTS mode.
65 *) Extensive reorganisation of FIPS PRNG behaviour. Remove all dependencies
66 to OpenSSL RAND code and replace with a tiny FIPS RAND API which also
67 performs algorithm blocking for unapproved PRNG types. Also do not
68 set PRNG type in FIPS_mode_set(): leave this to the application.
69 Add default OpenSSL DRBG handling: sets up FIPS PRNG and seeds with
70 the standard OpenSSL PRNG: set additional data to a date time vector.
73 *) Rename old X9.31 PRNG functions of the form FIPS_rand* to FIPS_x931*.
74 This shouldn't present any incompatibility problems because applications
75 shouldn't be using these directly and any that are will need to rethink
76 anyway as the X9.31 PRNG is now deprecated by FIPS 140-2
79 *) Extensive self tests and health checking required by SP800-90 DRBG.
80 Remove strength parameter from FIPS_drbg_instantiate and always
81 instantiate at maximum supported strength.
84 *) Add ECDH code to fips module and fips_ecdhvs for primitives only testing.
87 *) New algorithm test program fips_dhvs to handle DH primitives only testing.
90 *) New function DH_compute_key_padded() to compute a DH key and pad with
91 leading zeroes if needed: this complies with SP800-56A et al.
94 *) Initial implementation of SP800-90 DRBGs for Hash and CTR. Not used by
95 anything, incomplete, subject to change and largely untested at present.
98 *) Modify fipscanisteronly build option to only build the necessary object
99 files by filtering FIPS_EX_OBJ through a perl script in crypto/Makefile.
102 *) Add experimental option FIPSSYMS to give all symbols in
103 fipscanister.o and FIPS or fips prefix. This will avoid
104 conflicts with future versions of OpenSSL. Add perl script
105 util/fipsas.pl to preprocess assembly language source files
106 and rename any affected symbols.
109 *) Add selftest checks and algorithm block of non-fips algorithms in
110 FIPS mode. Remove DES2 from selftests.
113 *) Add ECDSA code to fips module. Add tiny fips_ecdsa_check to just
114 return internal method without any ENGINE dependencies. Add new
115 tiny fips sign and verify functions.
118 *) New build option no-ec2m to disable characteristic 2 code.
121 *) New build option "fipscanisteronly". This only builds fipscanister.o
122 and (currently) associated fips utilities. Uses the file Makefile.fips
123 instead of Makefile.org as the prototype.
126 *) Add some FIPS mode restrictions to GCM. Add internal IV generator.
127 Update fips_gcmtest to use IV generator.
130 *) Initial, experimental EVP support for AES-GCM. AAD can be input by
131 setting output buffer to NULL. The *Final function must be
132 called although it will not retrieve any additional data. The tag
133 can be set or retrieved with a ctrl. The IV length is by default 12
134 bytes (96 bits) but can be set to an alternative value. If the IV
135 length exceeds the maximum IV length (currently 16 bytes) it cannot be
139 *) New flag in ciphers: EVP_CIPH_FLAG_CUSTOM_CIPHER. This means the
140 underlying do_cipher function handles all cipher semantics itself
141 including padding and finalisation. This is useful if (for example)
142 an ENGINE cipher handles block padding itself. The behaviour of
143 do_cipher is subtly changed if this flag is set: the return value
144 is the number of characters written to the output buffer (zero is
145 no longer an error code) or a negative error code. Also if the
146 input buffer is NULL and length 0 finalisation should be performed.
149 *) If a candidate issuer certificate is already part of the constructed
150 path ignore it: new debug notification X509_V_ERR_PATH_LOOP for this case.
153 *) Improve forward-security support: add functions
155 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure))
156 void SSL_set_not_resumable_session_callback(SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure))
158 for use by SSL/TLS servers; the callback function will be called whenever a
159 new session is created, and gets to decide whether the session may be
160 cached to make it resumable (return 0) or not (return 1). (As by the
161 SSL/TLS protocol specifications, the session_id sent by the server will be
162 empty to indicate that the session is not resumable; also, the server will
163 not generate RFC 4507 (RFC 5077) session tickets.)
165 A simple reasonable callback implementation is to return is_forward_secure.
166 This parameter will be set to 1 or 0 depending on the ciphersuite selected
167 by the SSL/TLS server library, indicating whether it can provide forward
169 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
171 *) Add Next Protocol Negotiation,
172 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
173 disabled with a no-npn flag to config or Configure. Code donated
175 [Adam Langley <agl@google.com> and Ben Laurie]
177 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
178 all platforms. Move ssize_t definition from e_os.h to the public
179 header file e_os2.h as it now appears in public header file cms.h
182 *) New function OPENSSL_gmtime_diff to find the difference in days
183 and seconds between two tm structures. This will be used to provide
184 additional functionality for ASN1_TIME.
187 *) New -sigopt option to the ca, req and x509 utilities. Additional
188 signature parameters can be passed using this option and in
192 *) Add RSA PSS signing function. This will generate and set the
193 appropriate AlgorithmIdentifiers for PSS based on those in the
194 corresponding EVP_MD_CTX structure. No application support yet.
197 *) Support for companion algorithm specific ASN1 signing routines.
198 New function ASN1_item_sign_ctx() signs a pre-initialised
199 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
200 the appropriate parameters.
203 *) Add new algorithm specific ASN1 verification initialisation function
204 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
205 handling will be the same no matter what EVP_PKEY_METHOD is used.
206 Add a PSS handler to support verification of PSS signatures: checked
207 against a number of sample certificates.
210 *) Add signature printing for PSS. Add PSS OIDs.
211 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
213 *) Add algorithm specific signature printing. An individual ASN1 method
214 can now print out signatures instead of the standard hex dump.
216 More complex signatures (e.g. PSS) can print out more meaningful
217 information. Include DSA version that prints out the signature
221 *) Add -trusted_first option which attempts to find certificates in the
222 trusted store even if an untrusted chain is also supplied.
225 *) Initial experimental support for explicitly trusted non-root CAs.
226 OpenSSL still tries to build a complete chain to a root but if an
227 intermediate CA has a trust setting included that is used. The first
228 setting is used: whether to trust or reject.
231 *) New -verify_name option in command line utilities to set verification
235 *) Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE.
236 Add CMAC pkey methods.
239 *) Experiemental regnegotiation in s_server -www mode. If the client
240 browses /reneg connection is renegotiated. If /renegcert it is
241 renegotiated requesting a certificate.
244 *) Add an "external" session cache for debugging purposes to s_server. This
245 should help trace issues which normally are only apparent in deployed
246 multi-process servers.
249 *) Experiemental password based recipient info support for CMS library:
250 implementing RFC3211.
253 *) Split password based encryption into PBES2 and PBKDF2 functions. This
254 neatly separates the code into cipher and PBE sections and is required
255 for some algorithms that split PBES2 into separate pieces (such as
259 *) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where
260 return value is ignored. NB. The functions RAND_add(), RAND_seed(),
261 BIO_set_cipher() and some obscure PEM functions were changed so they
262 can now return an error. The RAND changes required a change to the
263 RAND_METHOD structure.
266 *) New macro __owur for "OpenSSL Warn Unused Result". This makes use of
267 a gcc attribute to warn if the result of a function is ignored. This
268 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h
269 whose return value is often ignored.
272 Changes between 1.0.0e and 1.0.1 [xx XXX xxxx]
274 *) Add RC4-MD5 and AESNI-SHA1 "stiched" implementations.
276 This work was sponsored by Intel.
279 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
280 ENGINE is used then we cannot handle that in the FIPS module so we
281 keep original code iff non-FIPS operations are allowed.
284 *) Add -attime option to openssl verify.
285 [Peter Eckersley <pde@eff.org> and Ben Laurie]
287 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
290 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
291 FIPS EC methods unconditionally for now.
294 *) New build option no-ec2m to disable characteristic 2 code.
297 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
298 all cases can be covered as some introduce binary incompatibilities.
301 *) Redirect RSA operations to FIPS module including keygen,
302 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
305 *) Add similar low level API blocking to ciphers.
308 *) Low level digest APIs are not approved in FIPS mode: any attempt
309 to use these will cause a fatal error. Applications that *really* want
310 to use them can use the private_* version instead.
313 *) Redirect cipher operations to FIPS module for FIPS builds.
316 *) Redirect digest operations to FIPS module for FIPS builds.
319 *) Update build system to add "fips" flag which will link in fipscanister.o
320 for static and shared library builds embedding a signature if needed.
323 *) Output TLS supported curves in preference order instead of numerical
324 order. This is currently hardcoded for the highest order curves first.
325 This should be configurable so applications can judge speed vs strength.
328 *) Add TLS v1.2 server support for client authentication.
331 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
335 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
336 FIPS modules versions.
339 *) Add TLS v1.2 client side support for client authentication. Keep cache
340 of handshake records longer as we don't know the hash algorithm to use
341 until after the certificate request message is received.
344 *) Initial TLS v1.2 client support. Add a default signature algorithms
345 extension including all the algorithms we support. Parse new signature
346 format in client key exchange. Relax some ECC signing restrictions for
347 TLS v1.2 as indicated in RFC5246.
350 *) Add server support for TLS v1.2 signature algorithms extension. Switch
351 to new signature format when needed using client digest preference.
352 All server ciphersuites should now work correctly in TLS v1.2. No client
353 support yet and no support for client certificates.
356 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
357 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
358 ciphersuites. At present only RSA key exchange ciphersuites work with
359 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
360 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
361 and version checking.
364 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
365 with this defined it will not be affected by any changes to ssl internal
366 structures. Add several utility functions to allow openssl application
367 to work with OPENSSL_NO_SSL_INTERN defined.
371 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
373 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
376 *) Add EC_GFp_nistp224_method(), a 64-bit optimized implementation for
377 elliptic curve NIST-P224 with constant-time single point multiplication on
378 typical inputs. EC_GROUP_new_by_curve_name() will automatically use this
379 (while EC_GROUP_new_curve_GFp() currently won't and prefers the more
380 flexible implementations).
382 The implementation requires support for the nonstandard type __uint128_t,
383 and so is disabled by default. To include this in your build of OpenSSL,
384 use -DEC_NISTP224_64_GCC_128 on the Configure (or config) command line,
385 and run "make depend" (or "make update").
386 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
388 *) Permit abbreviated handshakes when renegotiating using the function
389 SSL_renegotiate_abbreviated().
390 [Robin Seggelmann <seggelmann@fh-muenster.de>]
392 *) Add call to ENGINE_register_all_complete() to
393 ENGINE_load_builtin_engines(), so some implementations get used
394 automatically instead of needing explicit application support.
397 *) Add support for TLS key exporter as described in RFC5705.
398 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
400 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
401 a few changes are required:
403 Add SSL_OP_NO_TLSv1_1 flag.
405 Update version checking logic to handle version 1.1.
406 Add explicit IV handling (ported from DTLS code).
407 Add command line options to s_client/s_server.
410 Changes between 1.0.0d and 1.0.0e [xx XXX xxxx]
412 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
413 signature public key algorithm by using OID xref utilities instead.
414 Before this you could only use some ECC ciphersuites with SHA1 only.
417 *) Add protection against ECDSA timing attacks as mentioned in the paper
418 by Billy Bob Brumley and Nicola Tuveri, see:
420 http://eprint.iacr.org/2011/232.pdf
422 [Billy Bob Brumley and Nicola Tuveri]
424 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
426 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
427 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
429 *) Fix bug in string printing code: if *any* escaping is enabled we must
430 escape the escape character (backslash) or the resulting string is
434 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
436 *) Disable code workaround for ancient and obsolete Netscape browsers
437 and servers: an attacker can use it in a ciphersuite downgrade attack.
438 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
441 *) Fixed J-PAKE implementation error, originally discovered by
442 Sebastien Martini, further info and confirmation from Stefan
443 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
446 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
448 *) Fix extension code to avoid race conditions which can result in a buffer
449 overrun vulnerability: resumed sessions must not be modified as they can
450 be shared by multiple threads. CVE-2010-3864
453 *) Fix WIN32 build system to correctly link an ENGINE directory into
457 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
459 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
461 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
463 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
465 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
466 context. The operation can be customised via the ctrl mechanism in
467 case ENGINEs want to include additional functionality.
470 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
473 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
474 output hashes compatible with older versions of OpenSSL.
475 [Willy Weisz <weisz@vcpc.univie.ac.at>]
477 *) Fix compression algorithm handling: if resuming a session use the
478 compression algorithm of the resumed session instead of determining
479 it from client hello again. Don't allow server to change algorithm.
482 *) Add load_crls() function to apps tidying load_certs() too. Add option
483 to verify utility to allow additional CRLs to be included.
486 *) Update OCSP request code to permit adding custom headers to the request:
487 some responders need this.
490 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
492 [Julia Lawall <julia@diku.dk>]
494 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
495 needlessly dereferenced structures, used obsolete functions and
496 didn't handle all updated verify codes correctly.
499 *) Disable MD2 in the default configuration.
502 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
503 indicate the initial BIO being pushed or popped. This makes it possible
504 to determine whether the BIO is the one explicitly called or as a result
505 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
506 it handles reference counts correctly and doesn't zero out the I/O bio
507 when it is not being explicitly popped. WARNING: applications which
508 included workarounds for the old buggy behaviour will need to be modified
509 or they could free up already freed BIOs.
512 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
513 renaming to all platforms (within the 0.9.8 branch, this was
514 done conditionally on Netware platforms to avoid a name clash).
515 [Guenter <lists@gknw.net>]
517 *) Add ECDHE and PSK support to DTLS.
518 [Michael Tuexen <tuexen@fh-muenster.de>]
520 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
524 *) Add "missing" function EVP_MD_flags() (without this the only way to
525 retrieve a digest flags is by accessing the structure directly. Update
526 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
527 or cipher is registered as in the "from" argument. Print out all
528 registered digests in the dgst usage message instead of manually
529 attempting to work them out.
532 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
533 this allows the use of compression and extensions. Change default cipher
534 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
535 by default unless an application cipher string requests it.
538 *) Alter match criteria in PKCS12_parse(). It used to try to use local
539 key ids to find matching certificates and keys but some PKCS#12 files
540 don't follow the (somewhat unwritten) rules and this strategy fails.
541 Now just gather all certificates together and the first private key
542 then look for the first certificate that matches the key.
545 *) Support use of registered digest and cipher names for dgst and cipher
546 commands instead of having to add each one as a special case. So now
553 openssl dgst -sha256 foo
555 and this works for ENGINE based algorithms too.
559 *) Update Gost ENGINE to support parameter files.
560 [Victor B. Wagner <vitus@cryptocom.ru>]
562 *) Support GeneralizedTime in ca utility.
563 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
565 *) Enhance the hash format used for certificate directory links. The new
566 form uses the canonical encoding (meaning equivalent names will work
567 even if they aren't identical) and uses SHA1 instead of MD5. This form
568 is incompatible with the older format and as a result c_rehash should
569 be used to rebuild symbolic links.
572 *) Make PKCS#8 the default write format for private keys, replacing the
573 traditional format. This form is standardised, more secure and doesn't
574 include an implicit MD5 dependency.
577 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
578 committed to OpenSSL should pass this lot as a minimum.
581 *) Add session ticket override functionality for use by EAP-FAST.
582 [Jouni Malinen <j@w1.fi>]
584 *) Modify HMAC functions to return a value. Since these can be implemented
585 in an ENGINE errors can occur.
588 *) Type-checked OBJ_bsearch_ex.
591 *) Type-checked OBJ_bsearch. Also some constification necessitated
592 by type-checking. Still to come: TXT_DB, bsearch(?),
593 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
597 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
598 seconds to a tm structure directly, instead of going through OS
599 specific date routines. This avoids any issues with OS routines such
600 as the year 2038 bug. New *_adj() functions for ASN1 time structures
601 and X509_time_adj_ex() to cover the extended range. The existing
602 X509_time_adj() is still usable and will no longer have any date issues.
605 *) Delta CRL support. New use deltas option which will attempt to locate
606 and search any appropriate delta CRLs available.
608 This work was sponsored by Google.
611 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
612 code and add additional score elements. Validate alternate CRL paths
613 as part of the CRL checking and indicate a new error "CRL path validation
614 error" in this case. Applications wanting additional details can use
615 the verify callback and check the new "parent" field. If this is not
616 NULL CRL path validation is taking place. Existing applications wont
617 see this because it requires extended CRL support which is off by
620 This work was sponsored by Google.
623 *) Support for freshest CRL extension.
625 This work was sponsored by Google.
628 *) Initial indirect CRL support. Currently only supported in the CRLs
629 passed directly and not via lookup. Process certificate issuer
630 CRL entry extension and lookup CRL entries by bother issuer name
631 and serial number. Check and process CRL issuer entry in IDP extension.
633 This work was sponsored by Google.
636 *) Add support for distinct certificate and CRL paths. The CRL issuer
637 certificate is validated separately in this case. Only enabled if
638 an extended CRL support flag is set: this flag will enable additional
639 CRL functionality in future.
641 This work was sponsored by Google.
644 *) Add support for policy mappings extension.
646 This work was sponsored by Google.
649 *) Fixes to pathlength constraint, self issued certificate handling,
650 policy processing to align with RFC3280 and PKITS tests.
652 This work was sponsored by Google.
655 *) Support for name constraints certificate extension. DN, email, DNS
656 and URI types are currently supported.
658 This work was sponsored by Google.
661 *) To cater for systems that provide a pointer-based thread ID rather
662 than numeric, deprecate the current numeric thread ID mechanism and
663 replace it with a structure and associated callback type. This
664 mechanism allows a numeric "hash" to be extracted from a thread ID in
665 either case, and on platforms where pointers are larger than 'long',
666 mixing is done to help ensure the numeric 'hash' is usable even if it
667 can't be guaranteed unique. The default mechanism is to use "&errno"
668 as a pointer-based thread ID to distinguish between threads.
670 Applications that want to provide their own thread IDs should now use
671 CRYPTO_THREADID_set_callback() to register a callback that will call
672 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
674 Note that ERR_remove_state() is now deprecated, because it is tied
675 to the assumption that thread IDs are numeric. ERR_remove_state(0)
676 to free the current thread's error state should be replaced by
677 ERR_remove_thread_state(NULL).
679 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
680 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
681 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
682 application was previously providing a numeric thread callback that
683 was inappropriate for distinguishing threads, then uniqueness might
684 have been obtained with &errno that happened immediately in the
685 intermediate development versions of OpenSSL; this is no longer the
686 case, the numeric thread callback will now override the automatic use
688 [Geoff Thorpe, with help from Bodo Moeller]
690 *) Initial support for different CRL issuing certificates. This covers a
691 simple case where the self issued certificates in the chain exist and
692 the real CRL issuer is higher in the existing chain.
694 This work was sponsored by Google.
697 *) Removed effectively defunct crypto/store from the build.
700 *) Revamp of STACK to provide stronger type-checking. Still to come:
701 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
702 ASN1_STRING, CONF_VALUE.
705 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
706 RAM on SSL connections. This option can save about 34k per idle SSL.
709 *) Revamp of LHASH to provide stronger type-checking. Still to come:
710 STACK, TXT_DB, bsearch, qsort.
713 *) Initial support for Cryptographic Message Syntax (aka CMS) based
714 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
715 support for data, signedData, compressedData, digestedData and
716 encryptedData, envelopedData types included. Scripts to check against
717 RFC4134 examples draft and interop and consistency checks of many
718 content types and variants.
721 *) Add options to enc utility to support use of zlib compression BIO.
724 *) Extend mk1mf to support importing of options and assembly language
725 files from Configure script, currently only included in VC-WIN32.
726 The assembly language rules can now optionally generate the source
727 files from the associated perl scripts.
730 *) Implement remaining functionality needed to support GOST ciphersuites.
731 Interop testing has been performed using CryptoPro implementations.
732 [Victor B. Wagner <vitus@cryptocom.ru>]
734 *) s390x assembler pack.
737 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
741 *) Implement Opaque PRF Input TLS extension as specified in
742 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
743 official specification yet and no extension type assignment by
744 IANA exists, this extension (for now) will have to be explicitly
745 enabled when building OpenSSL by providing the extension number
746 to use. For example, specify an option
748 -DTLSEXT_TYPE_opaque_prf_input=0x9527
750 to the "config" or "Configure" script to enable the extension,
751 assuming extension number 0x9527 (which is a completely arbitrary
752 and unofficial assignment based on the MD5 hash of the Internet
753 Draft). Note that by doing so, you potentially lose
754 interoperability with other TLS implementations since these might
755 be using the same extension number for other purposes.
757 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
758 opaque PRF input value to use in the handshake. This will create
759 an interal copy of the length-'len' string at 'src', and will
760 return non-zero for success.
762 To get more control and flexibility, provide a callback function
765 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
766 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
770 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
773 Callback function 'cb' will be called in handshakes, and is
774 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
775 Argument 'arg' is for application purposes (the value as given to
776 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
777 be provided to the callback function). The callback function
778 has to return non-zero to report success: usually 1 to use opaque
779 PRF input just if possible, or 2 to enforce use of the opaque PRF
780 input. In the latter case, the library will abort the handshake
781 if opaque PRF input is not successfully negotiated.
783 Arguments 'peerinput' and 'len' given to the callback function
784 will always be NULL and 0 in the case of a client. A server will
785 see the client's opaque PRF input through these variables if
786 available (NULL and 0 otherwise). Note that if the server
787 provides an opaque PRF input, the length must be the same as the
788 length of the client's opaque PRF input.
790 Note that the callback function will only be called when creating
791 a new session (session resumption can resume whatever was
792 previously negotiated), and will not be called in SSL 2.0
793 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
794 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
795 for applications that need to enforce opaque PRF input.
799 *) Update ssl code to support digests other than SHA1+MD5 for handshake
802 [Victor B. Wagner <vitus@cryptocom.ru>]
804 *) Add RFC4507 support to OpenSSL. This includes the corrections in
805 RFC4507bis. The encrypted ticket format is an encrypted encoded
806 SSL_SESSION structure, that way new session features are automatically
809 If a client application caches session in an SSL_SESSION structure
810 support is transparent because tickets are now stored in the encoded
813 The SSL_CTX structure automatically generates keys for ticket
814 protection in servers so again support should be possible
815 with no application modification.
817 If a client or server wishes to disable RFC4507 support then the option
818 SSL_OP_NO_TICKET can be set.
820 Add a TLS extension debugging callback to allow the contents of any client
821 or server extensions to be examined.
823 This work was sponsored by Google.
826 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
827 OpenSSL should now compile cleanly on gcc 4.2
828 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
830 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
831 support including streaming MAC support: this is required for GOST
833 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
835 *) Add option -stream to use PKCS#7 streaming in smime utility. New
836 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
837 to output in BER and PEM format.
840 *) Experimental support for use of HMAC via EVP_PKEY interface. This
841 allows HMAC to be handled via the EVP_DigestSign*() interface. The
842 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
843 ENGINE support for HMAC keys which are unextractable. New -mac and
844 -macopt options to dgst utility.
847 *) New option -sigopt to dgst utility. Update dgst to use
848 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
849 alternative signing paramaters such as X9.31 or PSS in the dgst
853 *) Change ssl_cipher_apply_rule(), the internal function that does
854 the work each time a ciphersuite string requests enabling
855 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
856 removing ("!foo+bar") a class of ciphersuites: Now it maintains
857 the order of disabled ciphersuites such that those ciphersuites
858 that most recently went from enabled to disabled not only stay
859 in order with respect to each other, but also have higher priority
860 than other disabled ciphersuites the next time ciphersuites are
863 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
864 the same ciphersuites as with "HIGH" alone, but in a specific
865 order where the PSK ciphersuites come first (since they are the
866 most recently disabled ciphersuites when "HIGH" is parsed).
868 Also, change ssl_create_cipher_list() (using this new
869 funcionality) such that between otherwise identical
870 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
874 *) Change ssl_create_cipher_list() so that it automatically
875 arranges the ciphersuites in reasonable order before starting
876 to process the rule string. Thus, the definition for "DEFAULT"
877 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
878 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
879 This makes it much easier to arrive at a reasonable default order
880 in applications for which anonymous ciphers are OK (meaning
881 that you can't actually use DEFAULT).
882 [Bodo Moeller; suggested by Victor Duchovni]
884 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
885 processing) into multiple integers instead of setting
886 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
887 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
888 (These masks as well as the individual bit definitions are hidden
889 away into the non-exported interface ssl/ssl_locl.h, so this
890 change to the definition of the SSL_CIPHER structure shouldn't
891 affect applications.) This give us more bits for each of these
892 categories, so there is no longer a need to coagulate AES128 and
893 AES256 into a single algorithm bit, and to coagulate Camellia128
894 and Camellia256 into a single algorithm bit, which has led to all
897 Thus, among other things, the kludge introduced in 0.9.7m and
898 0.9.8e for masking out AES256 independently of AES128 or masking
899 out Camellia256 independently of AES256 is not needed here in 0.9.9.
901 With the change, we also introduce new ciphersuite aliases that
902 so far were missing: "AES128", "AES256", "CAMELLIA128", and
906 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
907 Use the leftmost N bytes of the signature input if the input is
908 larger than the prime q (with N being the size in bytes of q).
911 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
912 it yet and it is largely untested.
915 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
918 *) Initial incomplete changes to avoid need for function casts in OpenSSL
919 some compilers (gcc 4.2 and later) reject their use. Safestack is
920 reimplemented. Update ASN1 to avoid use of legacy functions.
923 *) Win32/64 targets are linked with Winsock2.
926 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
927 to external functions. This can be used to increase CRL handling
928 efficiency especially when CRLs are very large by (for example) storing
929 the CRL revoked certificates in a database.
932 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
933 new CRLs added to a directory can be used. New command line option
934 -verify_return_error to s_client and s_server. This causes real errors
935 to be returned by the verify callback instead of carrying on no matter
936 what. This reflects the way a "real world" verify callback would behave.
939 *) GOST engine, supporting several GOST algorithms and public key formats.
940 Kindly donated by Cryptocom.
943 *) Partial support for Issuing Distribution Point CRL extension. CRLs
944 partitioned by DP are handled but no indirect CRL or reason partitioning
945 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
946 selected via a scoring technique which handles IDP and AKID in CRLs.
949 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
950 will ultimately be used for all verify operations: this will remove the
951 X509_STORE dependency on certificate verification and allow alternative
952 lookup methods. X509_STORE based implementations of these two callbacks.
955 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
956 Modify get_crl() to find a valid (unexpired) CRL if possible.
959 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
960 this would be called X509_CRL_cmp() but that name is already used by
961 a function that just compares CRL issuer names. Cache several CRL
962 extensions in X509_CRL structure and cache CRLDP in X509.
965 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
966 this maps equivalent X509_NAME structures into a consistent structure.
967 Name comparison can then be performed rapidly using memcmp().
970 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
974 *) Allow digests to supply their own micalg string for S/MIME type using
975 the ctrl EVP_MD_CTRL_MICALG.
978 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
979 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
980 ctrl. It can then customise the structure before and/or after signing
984 *) New function OBJ_add_sigid() to allow application defined signature OIDs
985 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
986 to free up any added signature OIDs.
989 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
990 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
991 digest and cipher tables. New options added to openssl utility:
992 list-message-digest-algorithms and list-cipher-algorithms.
995 *) Change the array representation of binary polynomials: the list
996 of degrees of non-zero coefficients is now terminated with -1.
997 Previously it was terminated with 0, which was also part of the
998 value; thus, the array representation was not applicable to
999 polynomials where t^0 has coefficient zero. This change makes
1000 the array representation useful in a more general context.
1003 *) Various modifications and fixes to SSL/TLS cipher string
1004 handling. For ECC, the code now distinguishes between fixed ECDH
1005 with RSA certificates on the one hand and with ECDSA certificates
1006 on the other hand, since these are separate ciphersuites. The
1007 unused code for Fortezza ciphersuites has been removed.
1009 For consistency with EDH, ephemeral ECDH is now called "EECDH"
1010 (not "ECDHE"). For consistency with the code for DH
1011 certificates, use of ECDH certificates is now considered ECDH
1012 authentication, not RSA or ECDSA authentication (the latter is
1013 merely the CA's signing algorithm and not actively used in the
1016 The temporary ciphersuite alias "ECCdraft" is no longer
1017 available, and ECC ciphersuites are no longer excluded from "ALL"
1018 and "DEFAULT". The following aliases now exist for RFC 4492
1019 ciphersuites, most of these by analogy with the DH case:
1021 kECDHr - ECDH cert, signed with RSA
1022 kECDHe - ECDH cert, signed with ECDSA
1023 kECDH - ECDH cert (signed with either RSA or ECDSA)
1024 kEECDH - ephemeral ECDH
1025 ECDH - ECDH cert or ephemeral ECDH
1031 AECDH - anonymous ECDH
1032 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
1036 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
1037 Use correct micalg parameters depending on digest(s) in signed message.
1040 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
1041 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
1044 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
1045 an engine to register a method. Add ENGINE lookups for methods and
1046 functional reference processing.
1049 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
1050 EVP_{Sign,Verify}* which allow an application to customise the signature
1054 *) New -resign option to smime utility. This adds one or more signers
1055 to an existing PKCS#7 signedData structure. Also -md option to use an
1056 alternative message digest algorithm for signing.
1059 *) Tidy up PKCS#7 routines and add new functions to make it easier to
1060 create PKCS7 structures containing multiple signers. Update smime
1061 application to support multiple signers.
1064 *) New -macalg option to pkcs12 utility to allow setting of an alternative
1068 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
1069 Reorganize PBE internals to lookup from a static table using NIDs,
1070 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
1071 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
1072 PRF which will be automatically used with PBES2.
1075 *) Replace the algorithm specific calls to generate keys in "req" with the
1079 *) Update PKCS#7 enveloped data routines to use new API. This is now
1080 supported by any public key method supporting the encrypt operation. A
1081 ctrl is added to allow the public key algorithm to examine or modify
1082 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
1086 *) Add a ctrl to asn1 method to allow a public key algorithm to express
1087 a default digest type to use. In most cases this will be SHA1 but some
1088 algorithms (such as GOST) need to specify an alternative digest. The
1089 return value indicates how strong the prefernce is 1 means optional and
1090 2 is mandatory (that is it is the only supported type). Modify
1091 ASN1_item_sign() to accept a NULL digest argument to indicate it should
1092 use the default md. Update openssl utilities to use the default digest
1093 type for signing if it is not explicitly indicated.
1096 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
1097 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
1098 signing method from the key type. This effectively removes the link
1099 between digests and public key types.
1102 *) Add an OID cross reference table and utility functions. Its purpose is to
1103 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1104 rsaEncryption. This will allow some of the algorithm specific hackery
1105 needed to use the correct OID to be removed.
1108 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1109 structures for PKCS7_sign(). They are now set up by the relevant public
1113 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1116 *) Add support for key derivation (agreement) in the API, DH method and
1120 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1121 public and private key formats. As a side effect these add additional
1122 command line functionality not previously available: DSA signatures can be
1123 generated and verified using pkeyutl and DH key support and generation in
1128 [Oliver Tappe <zooey@hirschkaefer.de>]
1130 *) New make target "install_html_docs" installs HTML renditions of the
1132 [Oliver Tappe <zooey@hirschkaefer.de>]
1134 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1135 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1136 support key and parameter generation and add initial key generation
1137 functionality for RSA.
1140 *) Add functions for main EVP_PKEY_method operations. The undocumented
1141 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1142 EVP_PKEY_{encrypt,decrypt}_old.
1145 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1146 key API, doesn't do much yet.
1149 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1150 public key algorithms. New option to openssl utility:
1151 "list-public-key-algorithms" to print out info.
1154 *) Implement the Supported Elliptic Curves Extension for
1155 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1158 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1159 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1162 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1163 utilities such as rsa, dsa, dsaparam etc except they process any key
1167 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1168 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1169 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1173 *) Initial support for pluggable public key ASN1.
1174 De-spaghettify the public key ASN1 handling. Move public and private
1175 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1176 algorithm specific handling to a single module within the relevant
1177 algorithm directory. Add functions to allow (near) opaque processing
1178 of public and private key structures.
1181 *) Implement the Supported Point Formats Extension for
1182 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1185 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1186 for the psk identity [hint] and the psk callback functions to the
1187 SSL_SESSION, SSL and SSL_CTX structure.
1190 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1194 SSL_CTX_use_psk_identity_hint
1195 SSL_get_psk_identity_hint
1196 SSL_get_psk_identity
1197 SSL_use_psk_identity_hint
1199 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1201 *) Add RFC 3161 compliant time stamp request creation, response generation
1202 and response verification functionality.
1203 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1205 *) Add initial support for TLS extensions, specifically for the server_name
1206 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1207 have new members for a host name. The SSL data structure has an
1208 additional member SSL_CTX *initial_ctx so that new sessions can be
1209 stored in that context to allow for session resumption, even after the
1210 SSL has been switched to a new SSL_CTX in reaction to a client's
1211 server_name extension.
1213 New functions (subject to change):
1215 SSL_get_servername()
1216 SSL_get_servername_type()
1219 New CTRL codes and macros (subject to change):
1221 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1222 - SSL_CTX_set_tlsext_servername_callback()
1223 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1224 - SSL_CTX_set_tlsext_servername_arg()
1225 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1227 openssl s_client has a new '-servername ...' option.
1229 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1230 '-key2 ...', '-servername_fatal' (subject to change). This allows
1231 testing the HostName extension for a specific single host name ('-cert'
1232 and '-key' remain fallbacks for handshakes without HostName
1233 negotiation). If the unrecogninzed_name alert has to be sent, this by
1234 default is a warning; it becomes fatal with the '-servername_fatal'
1237 [Peter Sylvester, Remy Allais, Christophe Renou]
1239 *) Whirlpool hash implementation is added.
1242 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1243 bn(64,32). Because of instruction set limitations it doesn't have
1244 any negative impact on performance. This was done mostly in order
1245 to make it possible to share assembler modules, such as bn_mul_mont
1246 implementations, between 32- and 64-bit builds without hassle.
1249 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1250 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1254 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1255 dedicated Montgomery multiplication procedure, is introduced.
1256 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1257 "64-bit" performance on certain 32-bit targets.
1260 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1261 in SSL structures. New SSL ctrl to set maximum send fragment size.
1262 Save memory by seeting the I/O buffer sizes dynamically instead of
1263 using the maximum available value.
1266 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1267 in addition to the text details.
1270 *) Very, very preliminary EXPERIMENTAL support for printing of general
1271 ASN1 structures. This currently produces rather ugly output and doesn't
1272 handle several customised structures at all.
1275 *) Integrated support for PVK file format and some related formats such
1276 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1277 these in the 'rsa' and 'dsa' utilities.
1280 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1283 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1284 place for the (very old) "NETSCAPE" format certificates which are now
1285 handled using new ASN1 code equivalents.
1288 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1289 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1290 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1293 *) Modify CRL distribution points extension code to print out previously
1294 unsupported fields. Enhance extension setting code to allow setting of
1298 *) Add print and set support for Issuing Distribution Point CRL extension.
1301 *) Change 'Configure' script to enable Camellia by default.
1304 Changes between 0.9.8r and 0.9.8s [xx XXX xxxx]
1306 *) Add protection against ECDSA timing attacks as mentioned in the paper
1307 by Billy Bob Brumley and Nicola Tuveri, see:
1309 http://eprint.iacr.org/2011/232.pdf
1311 [Billy Bob Brumley and Nicola Tuveri]
1313 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1315 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1316 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1318 *) Fix bug in string printing code: if *any* escaping is enabled we must
1319 escape the escape character (backslash) or the resulting string is
1323 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1325 *) Disable code workaround for ancient and obsolete Netscape browsers
1326 and servers: an attacker can use it in a ciphersuite downgrade attack.
1327 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1330 *) Fixed J-PAKE implementation error, originally discovered by
1331 Sebastien Martini, further info and confirmation from Stefan
1332 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1335 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1337 *) Fix extension code to avoid race conditions which can result in a buffer
1338 overrun vulnerability: resumed sessions must not be modified as they can
1339 be shared by multiple threads. CVE-2010-3864
1342 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1345 *) Don't reencode certificate when calculating signature: cache and use
1346 the original encoding instead. This makes signature verification of
1347 some broken encodings work correctly.
1350 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1351 is also one of the inputs.
1352 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1354 *) Don't repeatedly append PBE algorithms to table if they already exist.
1355 Sort table on each new add. This effectively makes the table read only
1356 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1360 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1362 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1365 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1366 access or freeing data twice (CVE-2010-0742)
1367 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1369 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1370 common in certificates and some applications which only call
1371 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1375 Reduce copying into .apps and .test in makevms.com
1376 Don't try to use blank CA certificate in CA.com
1377 Allow use of C files from original directories in maketests.com
1378 [Steven M. Schweda" <sms@antinode.info>]
1380 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1382 *) When rejecting SSL/TLS records due to an incorrect version number, never
1383 update s->server with a new major version number. As of
1384 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1385 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1386 the previous behavior could result in a read attempt at NULL when
1387 receiving specific incorrect SSL/TLS records once record payload
1388 protection is active. (CVE-2010-0740)
1389 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1391 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1392 could be crashed if the relevant tables were not present (e.g. chrooted).
1393 [Tomas Hoger <thoger@redhat.com>]
1395 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1397 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1398 [Martin Olsson, Neel Mehta]
1400 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1401 accommodate for stack sorting, always a write lock!).
1404 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1405 excessive delays in the RAND_poll(): over a minute. As a workaround
1406 include a time check in the inner Heap32Next loop too.
1409 *) The code that handled flushing of data in SSL/TLS originally used the
1410 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1411 the problem outlined in PR#1949. The fix suggested there however can
1412 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1413 of Apache). So instead simplify the code to flush unconditionally.
1414 This should be fine since flushing with no data to flush is a no op.
1417 *) Handle TLS versions 2.0 and later properly and correctly use the
1418 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1419 off ancient servers have a habit of sticking around for a while...
1422 *) Modify compression code so it frees up structures without using the
1423 ex_data callbacks. This works around a problem where some applications
1424 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1425 restarting) then use compression (e.g. SSL with compression) later.
1426 This results in significant per-connection memory leaks and
1427 has caused some security issues including CVE-2008-1678 and
1431 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1432 change when encrypting or decrypting.
1435 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1436 connect and renegotiate with servers which do not support RI.
1437 Until RI is more widely deployed this option is enabled by default.
1440 *) Add "missing" ssl ctrls to clear options and mode.
1443 *) If client attempts to renegotiate and doesn't support RI respond with
1444 a no_renegotiation alert as required by RFC5746. Some renegotiating
1445 TLS clients will continue a connection gracefully when they receive
1446 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1447 waiting for a server hello which it will never receive. Now we treat a
1448 received no_renegotiation alert as a fatal error. This is because
1449 applications requesting a renegotiation might well expect it to succeed
1450 and would have no code in place to handle the server denying it so the
1451 only safe thing to do is to terminate the connection.
1454 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1455 peer supports secure renegotiation and 0 otherwise. Print out peer
1456 renegotiation support in s_client/s_server.
1459 *) Replace the highly broken and deprecated SPKAC certification method with
1460 the updated NID creation version. This should correctly handle UTF8.
1463 *) Implement RFC5746. Re-enable renegotiation but require the extension
1464 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1465 turns out to be a bad idea. It has been replaced by
1466 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1467 SSL_CTX_set_options(). This is really not recommended unless you
1468 know what you are doing.
1469 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1471 *) Fixes to stateless session resumption handling. Use initial_ctx when
1472 issuing and attempting to decrypt tickets in case it has changed during
1473 servername handling. Use a non-zero length session ID when attempting
1474 stateless session resumption: this makes it possible to determine if
1475 a resumption has occurred immediately after receiving server hello
1476 (several places in OpenSSL subtly assume this) instead of later in
1480 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1481 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1482 fixes for a few places where the return code is not checked
1484 [Julia Lawall <julia@diku.dk>]
1486 *) Add --strict-warnings option to Configure script to include devteam
1487 warnings in other configurations.
1490 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1491 makes it possible to install openssl libraries in locations which
1492 have names other than "lib", for example "/usr/lib64" which some
1494 [Steve Henson, based on patch from Jeremy Utley]
1496 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1497 X690 8.9.12 and can produce some misleading textual output of OIDs.
1498 [Steve Henson, reported by Dan Kaminsky]
1500 *) Delete MD2 from algorithm tables. This follows the recommendation in
1501 several standards that it is not used in new applications due to
1502 several cryptographic weaknesses. For binary compatibility reasons
1503 the MD2 API is still compiled in by default.
1506 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1510 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1511 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1513 [Guenter <lists@gknw.net>]
1515 *) Fix the server certificate chain building code to use X509_verify_cert(),
1516 it used to have an ad-hoc builder which was unable to cope with anything
1517 other than a simple chain.
1518 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1520 *) Don't check self signed certificate signatures in X509_verify_cert()
1521 by default (a flag can override this): it just wastes time without
1522 adding any security. As a useful side effect self signed root CAs
1523 with non-FIPS digests are now usable in FIPS mode.
1526 *) In dtls1_process_out_of_seq_message() the check if the current message
1527 is already buffered was missing. For every new message was memory
1528 allocated, allowing an attacker to perform an denial of service attack
1529 with sending out of seq handshake messages until there is no memory
1530 left. Additionally every future messege was buffered, even if the
1531 sequence number made no sense and would be part of another handshake.
1532 So only messages with sequence numbers less than 10 in advance will be
1533 buffered. (CVE-2009-1378)
1534 [Robin Seggelmann, discovered by Daniel Mentz]
1536 *) Records are buffered if they arrive with a future epoch to be
1537 processed after finishing the corresponding handshake. There is
1538 currently no limitation to this buffer allowing an attacker to perform
1539 a DOS attack with sending records with future epochs until there is no
1540 memory left. This patch adds the pqueue_size() function to detemine
1541 the size of a buffer and limits the record buffer to 100 entries.
1543 [Robin Seggelmann, discovered by Daniel Mentz]
1545 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1546 parent structure is freed. (CVE-2009-1379)
1549 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1550 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1553 [Ilya O. <vrghost@gmail.com>]
1555 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1557 *) Disable renegotiation completely - this fixes a severe security
1558 problem (CVE-2009-3555) at the cost of breaking all
1559 renegotiation. Renegotiation can be re-enabled by setting
1560 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1561 run-time. This is really not recommended unless you know what
1565 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1567 *) Don't set val to NULL when freeing up structures, it is freed up by
1568 underlying code. If sizeof(void *) > sizeof(long) this can result in
1569 zeroing past the valid field. (CVE-2009-0789)
1570 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1572 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1573 checked correctly. This would allow some invalid signed attributes to
1574 appear to verify correctly. (CVE-2009-0591)
1575 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1577 *) Reject UniversalString and BMPString types with invalid lengths. This
1578 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1579 a legal length. (CVE-2009-0590)
1582 *) Set S/MIME signing as the default purpose rather than setting it
1583 unconditionally. This allows applications to override it at the store
1587 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1588 to handle some structures.
1591 *) Improve efficiency of mem_gets: don't search whole buffer each time
1593 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1595 *) New -hex option for openssl rand.
1598 *) Print out UTF8String and NumericString when parsing ASN1.
1601 *) Support NumericString type for name components.
1604 *) Allow CC in the environment to override the automatically chosen
1605 compiler. Note that nothing is done to ensure flags work with the
1609 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1611 *) Properly check EVP_VerifyFinal() and similar return values
1613 [Ben Laurie, Bodo Moeller, Google Security Team]
1615 *) Enable TLS extensions by default.
1618 *) Allow the CHIL engine to be loaded, whether the application is
1619 multithreaded or not. (This does not release the developer from the
1620 obligation to set up the dynamic locking callbacks.)
1621 [Sander Temme <sander@temme.net>]
1623 *) Use correct exit code if there is an error in dgst command.
1624 [Steve Henson; problem pointed out by Roland Dirlewanger]
1626 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1627 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1630 *) Add experimental JPAKE support, including demo authentication in
1631 s_client and s_server.
1634 *) Set the comparison function in v3_addr_canonize().
1635 [Rob Austein <sra@hactrn.net>]
1637 *) Add support for XMPP STARTTLS in s_client.
1638 [Philip Paeps <philip@freebsd.org>]
1640 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1641 to ensure that even with this option, only ciphersuites in the
1642 server's preference list will be accepted. (Note that the option
1643 applies only when resuming a session, so the earlier behavior was
1644 just about the algorithm choice for symmetric cryptography.)
1647 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1649 *) Fix NULL pointer dereference if a DTLS server received
1650 ChangeCipherSpec as first record (CVE-2009-1386).
1653 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1654 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1657 *) The fix in 0.9.8c that supposedly got rid of unsafe
1658 double-checked locking was incomplete for RSA blinding,
1659 addressing just one layer of what turns out to have been
1660 doubly unsafe triple-checked locking.
1662 So now fix this for real by retiring the MONT_HELPER macro
1663 in crypto/rsa/rsa_eay.c.
1665 [Bodo Moeller; problem pointed out by Marius Schilder]
1667 *) Various precautionary measures:
1669 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1671 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1672 (NB: This would require knowledge of the secret session ticket key
1673 to exploit, in which case you'd be SOL either way.)
1675 - Change bn_nist.c so that it will properly handle input BIGNUMs
1676 outside the expected range.
1678 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1681 [Neel Mehta, Bodo Moeller]
1683 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1684 the load fails. Useful for distros.
1685 [Ben Laurie and the FreeBSD team]
1687 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1690 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1693 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1695 This work was sponsored by Logica.
1698 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1699 keystores. Support for SSL/TLS client authentication too.
1700 Not compiled unless enable-capieng specified to Configure.
1702 This work was sponsored by Logica.
1705 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1706 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1707 attribute creation routines such as certifcate requests and PKCS#12
1711 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1713 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1714 handshake which could lead to a cilent crash as found using the
1715 Codenomicon TLS test suite (CVE-2008-1672)
1716 [Steve Henson, Mark Cox]
1718 *) Fix double free in TLS server name extensions which could lead to
1719 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1722 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1724 Clear the error queue to ensure that error entries left from
1725 older function calls do not interfere with the correct operation.
1726 [Lutz Jaenicke, Erik de Castro Lopo]
1728 *) Remove root CA certificates of commercial CAs:
1730 The OpenSSL project does not recommend any specific CA and does not
1731 have any policy with respect to including or excluding any CA.
1732 Therefore it does not make any sense to ship an arbitrary selection
1733 of root CA certificates with the OpenSSL software.
1736 *) RSA OAEP patches to fix two separate invalid memory reads.
1737 The first one involves inputs when 'lzero' is greater than
1738 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1739 before the beginning of from). The second one involves inputs where
1740 the 'db' section contains nothing but zeroes (there is a one-byte
1741 invalid read after the end of 'db').
1742 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1744 *) Partial backport from 0.9.9-dev:
1746 Introduce bn_mul_mont (dedicated Montgomery multiplication
1747 procedure) as a candidate for BIGNUM assembler implementation.
1748 While 0.9.9-dev uses assembler for various architectures, only
1749 x86_64 is available by default here in the 0.9.8 branch, and
1750 32-bit x86 is available through a compile-time setting.
1752 To try the 32-bit x86 assembler implementation, use Configure
1753 option "enable-montasm" (which exists only for this backport).
1755 As "enable-montasm" for 32-bit x86 disclaims code stability
1756 anyway, in this constellation we activate additional code
1757 backported from 0.9.9-dev for further performance improvements,
1758 namely BN_from_montgomery_word. (To enable this otherwise,
1759 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1761 [Andy Polyakov (backport partially by Bodo Moeller)]
1763 *) Add TLS session ticket callback. This allows an application to set
1764 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1765 values. This is useful for key rollover for example where several key
1766 sets may exist with different names.
1769 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1770 This was broken until now in 0.9.8 releases, such that the only way
1771 a registered ENGINE could be used (assuming it initialises
1772 successfully on the host) was to explicitly set it as the default
1773 for the relevant algorithms. This is in contradiction with 0.9.7
1774 behaviour and the documentation. With this fix, when an ENGINE is
1775 registered into a given algorithm's table of implementations, the
1776 'uptodate' flag is reset so that auto-discovery will be used next
1777 time a new context for that algorithm attempts to select an
1779 [Ian Lister (tweaked by Geoff Thorpe)]
1781 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1782 implemention in the following ways:
1784 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1787 Lack of BER streaming support means one pass streaming processing is
1788 only supported if data is detached: setting the streaming flag is
1789 ignored for embedded content.
1791 CMS support is disabled by default and must be explicitly enabled
1792 with the enable-cms configuration option.
1795 *) Update the GMP engine glue to do direct copies between BIGNUM and
1796 mpz_t when openssl and GMP use the same limb size. Otherwise the
1797 existing "conversion via a text string export" trick is still used.
1798 [Paul Sheer <paulsheer@gmail.com>]
1800 *) Zlib compression BIO. This is a filter BIO which compressed and
1801 uncompresses any data passed through it.
1804 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1805 RFC3394 compatible AES key wrapping.
1808 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1809 sets string data without copying. X509_ALGOR_set0() and
1810 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1811 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1812 from an X509_ATTRIBUTE structure optionally checking it occurs only
1813 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1817 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1818 to get the expected BN_FLG_CONSTTIME behavior.
1819 [Bodo Moeller (Google)]
1823 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1824 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1825 - added some more tests to do_tests.pl
1826 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1827 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1828 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1829 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1830 - various changes to netware.pl to enable gcc-cross builds on Win32
1832 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1833 - various changes to fix missing prototype warnings
1834 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1835 - added AES, WHIRLPOOL and CPUID assembler code to build files
1836 - added missing AES assembler make rules to mk1mf.pl
1837 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1838 [Guenter Knauf <eflash@gmx.net>]
1840 *) Implement certificate status request TLS extension defined in RFC3546.
1841 A client can set the appropriate parameters and receive the encoded
1842 OCSP response via a callback. A server can query the supplied parameters
1843 and set the encoded OCSP response in the callback. Add simplified examples
1844 to s_client and s_server.
1847 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1849 *) Fix various bugs:
1850 + Binary incompatibility of ssl_ctx_st structure
1851 + DTLS interoperation with non-compliant servers
1852 + Don't call get_session_cb() without proposed session
1853 + Fix ia64 assembler code
1854 [Andy Polyakov, Steve Henson]
1856 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1858 *) DTLS Handshake overhaul. There were longstanding issues with
1859 OpenSSL DTLS implementation, which were making it impossible for
1860 RFC 4347 compliant client to communicate with OpenSSL server.
1861 Unfortunately just fixing these incompatibilities would "cut off"
1862 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1863 server keeps tolerating non RFC compliant syntax. The opposite is
1864 not true, 0.9.8f client can not communicate with earlier server.
1865 This update even addresses CVE-2007-4995.
1868 *) Changes to avoid need for function casts in OpenSSL: some compilers
1869 (gcc 4.2 and later) reject their use.
1870 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1873 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1874 RFC4507bis. The encrypted ticket format is an encrypted encoded
1875 SSL_SESSION structure, that way new session features are automatically
1878 If a client application caches session in an SSL_SESSION structure
1879 support is transparent because tickets are now stored in the encoded
1882 The SSL_CTX structure automatically generates keys for ticket
1883 protection in servers so again support should be possible
1884 with no application modification.
1886 If a client or server wishes to disable RFC4507 support then the option
1887 SSL_OP_NO_TICKET can be set.
1889 Add a TLS extension debugging callback to allow the contents of any client
1890 or server extensions to be examined.
1892 This work was sponsored by Google.
1895 *) Add initial support for TLS extensions, specifically for the server_name
1896 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1897 have new members for a host name. The SSL data structure has an
1898 additional member SSL_CTX *initial_ctx so that new sessions can be
1899 stored in that context to allow for session resumption, even after the
1900 SSL has been switched to a new SSL_CTX in reaction to a client's
1901 server_name extension.
1903 New functions (subject to change):
1905 SSL_get_servername()
1906 SSL_get_servername_type()
1909 New CTRL codes and macros (subject to change):
1911 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1912 - SSL_CTX_set_tlsext_servername_callback()
1913 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1914 - SSL_CTX_set_tlsext_servername_arg()
1915 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1917 openssl s_client has a new '-servername ...' option.
1919 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1920 '-key2 ...', '-servername_fatal' (subject to change). This allows
1921 testing the HostName extension for a specific single host name ('-cert'
1922 and '-key' remain fallbacks for handshakes without HostName
1923 negotiation). If the unrecogninzed_name alert has to be sent, this by
1924 default is a warning; it becomes fatal with the '-servername_fatal'
1927 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1929 *) Add AES and SSE2 assembly language support to VC++ build.
1932 *) Mitigate attack on final subtraction in Montgomery reduction.
1935 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1936 (which previously caused an internal error).
1939 *) Squeeze another 10% out of IGE mode when in != out.
1942 *) AES IGE mode speedup.
1943 [Dean Gaudet (Google)]
1945 *) Add the Korean symmetric 128-bit cipher SEED (see
1946 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1947 add SEED ciphersuites from RFC 4162:
1949 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1950 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1951 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1952 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1954 To minimize changes between patchlevels in the OpenSSL 0.9.8
1955 series, SEED remains excluded from compilation unless OpenSSL
1956 is configured with 'enable-seed'.
1957 [KISA, Bodo Moeller]
1959 *) Mitigate branch prediction attacks, which can be practical if a
1960 single processor is shared, allowing a spy process to extract
1961 information. For detailed background information, see
1962 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1963 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1964 and Necessary Software Countermeasures"). The core of the change
1965 are new versions BN_div_no_branch() and
1966 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1967 respectively, which are slower, but avoid the security-relevant
1968 conditional branches. These are automatically called by BN_div()
1969 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1970 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1971 remove a conditional branch.
1973 BN_FLG_CONSTTIME is the new name for the previous
1974 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1975 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1976 in the exponent causes BN_mod_exp_mont() to use the alternative
1977 implementation in BN_mod_exp_mont_consttime().) The old name
1978 remains as a deprecated alias.
1980 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1981 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1982 constant-time implementations for more than just exponentiation.
1983 Here too the old name is kept as a deprecated alias.
1985 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1986 the BN_BLINDING structure gets an independent copy of the
1987 modulus. This means that the previous "BIGNUM *m" argument to
1988 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1989 essentially becomes "const BIGNUM *m", although we can't actually
1990 change this in the header file before 0.9.9. It allows
1991 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1992 enable BN_FLG_CONSTTIME.
1994 [Matthew D Wood (Intel Corp)]
1996 *) In the SSL/TLS server implementation, be strict about session ID
1997 context matching (which matters if an application uses a single
1998 external cache for different purposes). Previously,
1999 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2000 set. This did ensure strict client verification, but meant that,
2001 with applications using a single external cache for quite
2002 different requirements, clients could circumvent ciphersuite
2003 restrictions for a given session ID context by starting a session
2004 in a different context.
2007 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2008 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2009 authentication-only ciphersuites.
2012 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
2013 not complete and could lead to a possible single byte overflow
2014 (CVE-2007-5135) [Ben Laurie]
2016 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
2018 *) Since AES128 and AES256 (and similarly Camellia128 and
2019 Camellia256) share a single mask bit in the logic of
2020 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2021 kludge to work properly if AES128 is available and AES256 isn't
2022 (or if Camellia128 is available and Camellia256 isn't).
2025 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
2026 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
2027 When a point or a seed is encoded in a BIT STRING, we need to
2028 prevent the removal of trailing zero bits to get the proper DER
2029 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
2030 of a NamedBitList, for which trailing 0 bits need to be removed.)
2033 *) Have SSL/TLS server implementation tolerate "mismatched" record
2034 protocol version while receiving ClientHello even if the
2035 ClientHello is fragmented. (The server can't insist on the
2036 particular protocol version it has chosen before the ServerHello
2037 message has informed the client about his choice.)
2040 *) Add RFC 3779 support.
2041 [Rob Austein for ARIN, Ben Laurie]
2043 *) Load error codes if they are not already present instead of using a
2044 static variable. This allows them to be cleanly unloaded and reloaded.
2045 Improve header file function name parsing.
2048 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
2049 or CAPABILITY handshake as required by RFCs.
2052 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
2054 *) Introduce limits to prevent malicious keys being able to
2055 cause a denial of service. (CVE-2006-2940)
2056 [Steve Henson, Bodo Moeller]
2058 *) Fix ASN.1 parsing of certain invalid structures that can result
2059 in a denial of service. (CVE-2006-2937) [Steve Henson]
2061 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2062 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2064 *) Fix SSL client code which could crash if connecting to a
2065 malicious SSLv2 server. (CVE-2006-4343)
2066 [Tavis Ormandy and Will Drewry, Google Security Team]
2068 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
2069 match only those. Before that, "AES256-SHA" would be interpreted
2070 as a pattern and match "AES128-SHA" too (since AES128-SHA got
2071 the same strength classification in 0.9.7h) as we currently only
2072 have a single AES bit in the ciphersuite description bitmap.
2073 That change, however, also applied to ciphersuite strings such as
2074 "RC4-MD5" that intentionally matched multiple ciphersuites --
2075 namely, SSL 2.0 ciphersuites in addition to the more common ones
2076 from SSL 3.0/TLS 1.0.
2078 So we change the selection algorithm again: Naming an explicit
2079 ciphersuite selects this one ciphersuite, and any other similar
2080 ciphersuite (same bitmap) from *other* protocol versions.
2081 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2082 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
2084 Since SSL 2.0 does not have any ciphersuites for which the
2085 128/256 bit distinction would be relevant, this works for now.
2086 The proper fix will be to use different bits for AES128 and
2087 AES256, which would have avoided the problems from the beginning;
2088 however, bits are scarce, so we can only do this in a new release
2089 (not just a patchlevel) when we can change the SSL_CIPHER
2090 definition to split the single 'unsigned long mask' bitmap into
2091 multiple values to extend the available space.
2095 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2097 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2098 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2100 *) Add AES IGE and biIGE modes.
2103 *) Change the Unix randomness entropy gathering to use poll() when
2104 possible instead of select(), since the latter has some
2105 undesirable limitations.
2106 [Darryl Miles via Richard Levitte and Bodo Moeller]
2108 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2109 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2110 cannot be implicitly activated as part of, e.g., the "AES" alias.
2111 However, please upgrade to OpenSSL 0.9.9[-dev] for
2112 non-experimental use of the ECC ciphersuites to get TLS extension
2113 support, which is required for curve and point format negotiation
2114 to avoid potential handshake problems.
2117 *) Disable rogue ciphersuites:
2119 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2120 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2121 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2123 The latter two were purportedly from
2124 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2127 Also deactivate the remaining ciphersuites from
2128 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2129 unofficial, and the ID has long expired.
2132 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2133 dual-core machines) and other potential thread-safety issues.
2136 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2137 versions), which is now available for royalty-free use
2138 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2139 Also, add Camellia TLS ciphersuites from RFC 4132.
2141 To minimize changes between patchlevels in the OpenSSL 0.9.8
2142 series, Camellia remains excluded from compilation unless OpenSSL
2143 is configured with 'enable-camellia'.
2146 *) Disable the padding bug check when compression is in use. The padding
2147 bug check assumes the first packet is of even length, this is not
2148 necessarily true if compresssion is enabled and can result in false
2149 positives causing handshake failure. The actual bug test is ancient
2150 code so it is hoped that implementations will either have fixed it by
2151 now or any which still have the bug do not support compression.
2154 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2156 *) When applying a cipher rule check to see if string match is an explicit
2157 cipher suite and only match that one cipher suite if it is.
2160 *) Link in manifests for VC++ if needed.
2161 [Austin Ziegler <halostatue@gmail.com>]
2163 *) Update support for ECC-based TLS ciphersuites according to
2164 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2165 TLS extensions, which are supported starting with the 0.9.9
2166 branch, not in the OpenSSL 0.9.8 branch).
2169 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2170 opaque EVP_CIPHER_CTX handling.
2173 *) Fixes and enhancements to zlib compression code. We now only use
2174 "zlib1.dll" and use the default __cdecl calling convention on Win32
2175 to conform with the standards mentioned here:
2176 http://www.zlib.net/DLL_FAQ.txt
2177 Static zlib linking now works on Windows and the new --with-zlib-include
2178 --with-zlib-lib options to Configure can be used to supply the location
2179 of the headers and library. Gracefully handle case where zlib library
2183 *) Several fixes and enhancements to the OID generation code. The old code
2184 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2185 handle numbers larger than ULONG_MAX, truncated printing and had a
2186 non standard OBJ_obj2txt() behaviour.
2189 *) Add support for building of engines under engine/ as shared libraries
2190 under VC++ build system.
2193 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2194 Hopefully, we will not see any false combination of paths any more.
2197 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2199 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2200 (part of SSL_OP_ALL). This option used to disable the
2201 countermeasure against man-in-the-middle protocol-version
2202 rollback in the SSL 2.0 server implementation, which is a bad
2203 idea. (CVE-2005-2969)
2205 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2206 for Information Security, National Institute of Advanced Industrial
2207 Science and Technology [AIST], Japan)]
2209 *) Add two function to clear and return the verify parameter flags.
2212 *) Keep cipherlists sorted in the source instead of sorting them at
2213 runtime, thus removing the need for a lock.
2216 *) Avoid some small subgroup attacks in Diffie-Hellman.
2217 [Nick Mathewson and Ben Laurie]
2219 *) Add functions for well-known primes.
2222 *) Extended Windows CE support.
2223 [Satoshi Nakamura and Andy Polyakov]
2225 *) Initialize SSL_METHOD structures at compile time instead of during
2226 runtime, thus removing the need for a lock.
2229 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2230 attempting to decrypt each encrypted key in turn. Add support to
2234 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2236 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2239 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2242 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2243 key into the same file any more.
2246 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2249 *) Add -utf8 command line and config file option to 'ca'.
2250 [Stefan <stf@udoma.org]
2252 *) Removed the macro des_crypt(), as it seems to conflict with some
2253 libraries. Use DES_crypt().
2256 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2257 involves renaming the source and generated shared-libs for
2258 both. The engines will accept the corrected or legacy ids
2259 ('ncipher' and '4758_cca' respectively) when binding. NB,
2260 this only applies when building 'shared'.
2261 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2263 *) Add attribute functions to EVP_PKEY structure. Modify
2264 PKCS12_create() to recognize a CSP name attribute and
2265 use it. Make -CSP option work again in pkcs12 utility.
2268 *) Add new functionality to the bn blinding code:
2269 - automatic re-creation of the BN_BLINDING parameters after
2270 a fixed number of uses (currently 32)
2271 - add new function for parameter creation
2272 - introduce flags to control the update behaviour of the
2273 BN_BLINDING parameters
2274 - hide BN_BLINDING structure
2275 Add a second BN_BLINDING slot to the RSA structure to improve
2276 performance when a single RSA object is shared among several
2280 *) Add support for DTLS.
2281 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2283 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2284 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2287 *) Remove buggy and incompletet DH cert support from
2288 ssl/ssl_rsa.c and ssl/s3_both.c
2291 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2292 the apps/openssl applications.
2295 *) Compile clean with "-Wall -Wmissing-prototypes
2296 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2297 DEBUG_SAFESTACK must also be set.
2300 *) Change ./Configure so that certain algorithms can be disabled by default.
2301 The new counterpiece to "no-xxx" is "enable-xxx".
2303 The patented RC5 and MDC2 algorithms will now be disabled unless
2304 "enable-rc5" and "enable-mdc2", respectively, are specified.
2306 (IDEA remains enabled despite being patented. This is because IDEA
2307 is frequently required for interoperability, and there is no license
2308 fee for non-commercial use. As before, "no-idea" can be used to
2309 avoid this algorithm.)
2313 *) Add processing of proxy certificates (see RFC 3820). This work was
2314 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2315 EGEE (Enabling Grids for E-science in Europe).
2318 *) RC4 performance overhaul on modern architectures/implementations, such
2319 as Intel P4, IA-64 and AMD64.
2322 *) New utility extract-section.pl. This can be used specify an alternative
2323 section number in a pod file instead of having to treat each file as
2324 a separate case in Makefile. This can be done by adding two lines to the
2327 =for comment openssl_section:XXX
2329 The blank line is mandatory.
2333 *) New arguments -certform, -keyform and -pass for s_client and s_server
2334 to allow alternative format key and certificate files and passphrase
2338 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2339 update associated structures and add various utility functions.
2341 Add new policy related verify parameters, include policy checking in
2342 standard verify code. Enhance 'smime' application with extra parameters
2343 to support policy checking and print out.
2346 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2347 Nehemiah processors. These extensions support AES encryption in hardware
2348 as well as RNG (though RNG support is currently disabled).
2349 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2351 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2354 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2355 [Andy Polyakov and a number of other people]
2357 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2358 implementation contributed by IBM.
2359 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2361 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2362 exponent rather than 'unsigned long'. There is a corresponding change to
2363 the new 'rsa_keygen' element of the RSA_METHOD structure.
2364 [Jelte Jansen, Geoff Thorpe]
2366 *) Functionality for creating the initial serial number file is now
2367 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2369 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2370 number file to 1, which is bound to cause problems. To avoid
2371 the problems while respecting compatibility between different 0.9.7
2372 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2373 CA.pl for serial number initialization. With the new release 0.9.8,
2374 we can fix the problem directly in the 'ca' utility.)
2377 *) Reduced header interdepencies by declaring more opaque objects in
2378 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2379 give fewer recursive includes, which could break lazy source code - so
2380 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2381 developers should define this symbol when building and using openssl to
2382 ensure they track the recommended behaviour, interfaces, [etc], but
2383 backwards-compatible behaviour prevails when this isn't defined.
2386 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2389 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2390 This will generate a random key of the appropriate length based on the
2391 cipher context. The EVP_CIPHER can provide its own random key generation
2392 routine to support keys of a specific form. This is used in the des and
2393 3des routines to generate a key of the correct parity. Update S/MIME
2394 code to use new functions and hence generate correct parity DES keys.
2395 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2396 valid (weak or incorrect parity).
2399 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2400 as looking them up. This is useful when the verified structure may contain
2401 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2402 present unless the new PKCS7_NO_CRL flag is asserted.
2405 *) Extend ASN1 oid configuration module. It now additionally accepts the
2408 shortName = some long name, 1.2.3.4
2411 *) Reimplemented the BN_CTX implementation. There is now no more static
2412 limitation on the number of variables it can handle nor the depth of the
2413 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2414 information can now expand as required, and rather than having a single
2415 static array of bignums, BN_CTX now uses a linked-list of such arrays
2416 allowing it to expand on demand whilst maintaining the usefulness of
2417 BN_CTX's "bundling".
2420 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2421 to allow all RSA operations to function using a single BN_CTX.
2424 *) Preliminary support for certificate policy evaluation and checking. This
2425 is initially intended to pass the tests outlined in "Conformance Testing
2426 of Relying Party Client Certificate Path Processing Logic" v1.07.
2429 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2430 remained unused and not that useful. A variety of other little bignum
2431 tweaks and fixes have also been made continuing on from the audit (see
2435 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2436 associated ASN1, EVP and SSL functions and old ASN1 macros.
2439 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2440 and this should never fail. So the return value from the use of
2441 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2442 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2445 *) BN_CTX_get() should return zero-valued bignums, providing the same
2446 initialised value as BN_new().
2447 [Geoff Thorpe, suggested by Ulf Möller]
2449 *) Support for inhibitAnyPolicy certificate extension.
2452 *) An audit of the BIGNUM code is underway, for which debugging code is
2453 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2454 is considered valid when processing BIGNUMs, and causes execution to
2455 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2456 further steps are taken to deliberately pollute unused data in BIGNUM
2457 structures to try and expose faulty code further on. For now, openssl will
2458 (in its default mode of operation) continue to tolerate the inconsistent
2459 forms that it has tolerated in the past, but authors and packagers should
2460 consider trying openssl and their own applications when compiled with
2461 these debugging symbols defined. It will help highlight potential bugs in
2462 their own code, and will improve the test coverage for OpenSSL itself. At
2463 some point, these tighter rules will become openssl's default to improve
2464 maintainability, though the assert()s and other overheads will remain only
2465 in debugging configurations. See bn.h for more details.
2466 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2468 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2469 that can only be obtained through BN_CTX_new() (which implicitly
2470 initialises it). The presence of this function only made it possible
2471 to overwrite an existing structure (and cause memory leaks).
2474 *) Because of the callback-based approach for implementing LHASH as a
2475 template type, lh_insert() adds opaque objects to hash-tables and
2476 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2477 to clean up those corresponding objects before destroying the hash table
2478 (and losing the object pointers). So some over-zealous constifications in
2479 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2480 objects as "const" and the lh_doall[_arg] callback wrappers are not
2481 prototyped to have "const" restrictions on the object pointers they are
2482 given (and so aren't required to cast them away any more).
2485 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2486 (speed) prefers to use its own implementation. The two implementations
2487 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2488 its object type properly exposed (MS_TM) instead of casting to/from "char
2489 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2490 aren't necessarily the greatest nomenclatures - but this is what was used
2491 internally to the implementation so I've used that for now.
2494 *) Ensure that deprecated functions do not get compiled when
2495 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2496 the self-tests were still using deprecated key-generation functions so
2497 these have been updated also.
2500 *) Reorganise PKCS#7 code to separate the digest location functionality
2501 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2502 New function PKCS7_set_digest() to set the digest type for PKCS#7
2503 digestedData type. Add additional code to correctly generate the
2504 digestedData type and add support for this type in PKCS7 initialization
2508 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2509 structure of type "other".
2512 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2513 sure the loop does correctly stop and breaking ("division by zero")
2514 modulus operations are not performed. The (pre-generated) prime
2515 table crypto/bn/bn_prime.h was already correct, but it could not be
2516 re-generated on some platforms because of the "division by zero"
2517 situation in the script.
2518 [Ralf S. Engelschall]
2520 *) Update support for ECC-based TLS ciphersuites according to
2521 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2522 SHA-1 now is only used for "small" curves (where the
2523 representation of a field element takes up to 24 bytes); for
2524 larger curves, the field element resulting from ECDH is directly
2525 used as premaster secret.
2526 [Douglas Stebila (Sun Microsystems Laboratories)]
2528 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2529 curve secp160r1 to the tests.
2530 [Douglas Stebila (Sun Microsystems Laboratories)]
2532 *) Add the possibility to load symbols globally with DSO.
2533 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2535 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2536 control of the error stack.
2539 *) Add support for STORE in ENGINE.
2542 *) Add the STORE type. The intention is to provide a common interface
2543 to certificate and key stores, be they simple file-based stores, or
2544 HSM-type store, or LDAP stores, or...
2545 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2548 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2549 pass a list of arguments to any function as well as provide a way
2550 for a function to pass data back to the caller.
2553 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2554 works like BUF_strdup() but can be used to duplicate a portion of
2555 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2559 *) Add the function sk_find_ex() which works like sk_find(), but will
2560 return an index to an element even if an exact match couldn't be
2561 found. The index is guaranteed to point at the element where the
2562 searched-for key would be inserted to preserve sorting order.
2565 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2566 takes an extra flags argument for optional functionality. Currently,
2567 the following flags are defined:
2569 OBJ_BSEARCH_VALUE_ON_NOMATCH
2570 This one gets OBJ_bsearch_ex() to return a pointer to the first
2571 element where the comparing function returns a negative or zero
2574 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2575 This one gets OBJ_bsearch_ex() to return a pointer to the first
2576 element where the comparing function returns zero. This is useful
2577 if there are more than one element where the comparing function
2581 *) Make it possible to create self-signed certificates with 'openssl ca'
2582 in such a way that the self-signed certificate becomes part of the
2583 CA database and uses the same mechanisms for serial number generation
2584 as all other certificate signing. The new flag '-selfsign' enables
2585 this functionality. Adapt CA.sh and CA.pl.in.
2588 *) Add functionality to check the public key of a certificate request
2589 against a given private. This is useful to check that a certificate
2590 request can be signed by that key (self-signing).
2593 *) Make it possible to have multiple active certificates with the same
2594 subject in the CA index file. This is done only if the keyword
2595 'unique_subject' is set to 'no' in the main CA section (default
2596 if 'CA_default') of the configuration file. The value is saved
2597 with the database itself in a separate index attribute file,
2598 named like the index file with '.attr' appended to the name.
2601 *) Generate muti valued AVAs using '+' notation in config files for
2605 *) Support for nameConstraints certificate extension.
2608 *) Support for policyConstraints certificate extension.
2611 *) Support for policyMappings certificate extension.
2614 *) Make sure the default DSA_METHOD implementation only uses its
2615 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2616 and change its own handlers to be NULL so as to remove unnecessary
2617 indirection. This lets alternative implementations fallback to the
2618 default implementation more easily.
2621 *) Support for directoryName in GeneralName related extensions
2625 *) Make it possible to link applications using Makefile.shared.
2626 Make that possible even when linking against static libraries!
2629 *) Support for single pass processing for S/MIME signing. This now
2630 means that S/MIME signing can be done from a pipe, in addition
2631 cleartext signing (multipart/signed type) is effectively streaming
2632 and the signed data does not need to be all held in memory.
2634 This is done with a new flag PKCS7_STREAM. When this flag is set
2635 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2636 is done after the data is output (and digests calculated) in
2637 SMIME_write_PKCS7().
2640 *) Add full support for -rpath/-R, both in shared libraries and
2641 applications, at least on the platforms where it's known how
2645 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2646 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2647 will now compute a table of multiples of the generator that
2648 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2649 faster (notably in the case of a single point multiplication,
2650 scalar * generator).
2651 [Nils Larsch, Bodo Moeller]
2653 *) IPv6 support for certificate extensions. The various extensions
2654 which use the IP:a.b.c.d can now take IPv6 addresses using the
2655 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2659 *) Added an ENGINE that implements RSA by performing private key
2660 exponentiations with the GMP library. The conversions to and from
2661 GMP's mpz_t format aren't optimised nor are any montgomery forms
2662 cached, and on x86 it appears OpenSSL's own performance has caught up.
2663 However there are likely to be other architectures where GMP could
2664 provide a boost. This ENGINE is not built in by default, but it can be
2665 specified at Configure time and should be accompanied by the necessary
2666 linker additions, eg;
2667 ./config -DOPENSSL_USE_GMP -lgmp
2670 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2671 testing availability of engines with "-t" - the old behaviour is
2672 produced by increasing the feature's verbosity with "-tt".
2675 *) ECDSA routines: under certain error conditions uninitialized BN objects
2676 could be freed. Solution: make sure initialization is performed early
2677 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2681 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2682 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2683 software implementations. For DSA and DH, parameter generation can
2684 also be overriden by providing the appropriate method callbacks.
2687 *) Change the "progress" mechanism used in key-generation and
2688 primality testing to functions that take a new BN_GENCB pointer in
2689 place of callback/argument pairs. The new API functions have "_ex"
2690 postfixes and the older functions are reimplemented as wrappers for
2691 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2692 declarations of the old functions to help (graceful) attempts to
2693 migrate to the new functions. Also, the new key-generation API
2694 functions operate on a caller-supplied key-structure and return
2695 success/failure rather than returning a key or NULL - this is to
2696 help make "keygen" another member function of RSA_METHOD etc.
2698 Example for using the new callback interface:
2700 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2704 BN_GENCB_set(&my_cb, my_callback, my_arg);
2706 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2707 /* For the meaning of a, b in calls to my_callback(), see the
2708 * documentation of the function that calls the callback.
2709 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2710 * my_callback should return 1 if it wants BN_is_prime_ex()
2711 * to continue, or 0 to stop.
2716 *) Change the ZLIB compression method to be stateful, and make it
2717 available to TLS with the number defined in
2718 draft-ietf-tls-compression-04.txt.
2721 *) Add the ASN.1 structures and functions for CertificatePair, which
2722 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2724 CertificatePair ::= SEQUENCE {
2725 forward [0] Certificate OPTIONAL,
2726 reverse [1] Certificate OPTIONAL,
2727 -- at least one of the pair shall be present -- }
2729 Also implement the PEM functions to read and write certificate
2730 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2732 This needed to be defined, mostly for the sake of the LDAP
2733 attribute crossCertificatePair, but may prove useful elsewhere as
2737 *) Make it possible to inhibit symlinking of shared libraries in
2738 Makefile.shared, for Cygwin's sake.
2741 *) Extend the BIGNUM API by creating a function
2742 void BN_set_negative(BIGNUM *a, int neg);
2743 and a macro that behave like
2744 int BN_is_negative(const BIGNUM *a);
2746 to avoid the need to access 'a->neg' directly in applications.
2749 *) Implement fast modular reduction for pseudo-Mersenne primes
2750 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2751 EC_GROUP_new_curve_GFp() will now automatically use this
2753 [Nils Larsch <nla@trustcenter.de>]
2755 *) Add new lock type (CRYPTO_LOCK_BN).
2758 *) Change the ENGINE framework to automatically load engines
2759 dynamically from specific directories unless they could be
2760 found to already be built in or loaded. Move all the
2761 current engines except for the cryptodev one to a new
2763 The engines in engines/ are built as shared libraries if
2764 the "shared" options was given to ./Configure or ./config.
2765 Otherwise, they are inserted in libcrypto.a.
2766 /usr/local/ssl/engines is the default directory for dynamic
2767 engines, but that can be overriden at configure time through
2768 the usual use of --prefix and/or --openssldir, and at run
2769 time with the environment variable OPENSSL_ENGINES.
2770 [Geoff Thorpe and Richard Levitte]
2772 *) Add Makefile.shared, a helper makefile to build shared
2773 libraries. Addapt Makefile.org.
2776 *) Add version info to Win32 DLLs.
2777 [Peter 'Luna' Runestig" <peter@runestig.com>]
2779 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2780 can be added using this API to created arbitrary PKCS#12
2781 files while avoiding the low level API.
2783 New options to PKCS12_create(), key or cert can be NULL and
2784 will then be omitted from the output file. The encryption
2785 algorithm NIDs can be set to -1 for no encryption, the mac
2786 iteration count can be set to 0 to omit the mac.
2788 Enhance pkcs12 utility by making the -nokeys and -nocerts
2789 options work when creating a PKCS#12 file. New option -nomac
2790 to omit the mac, NONE can be set for an encryption algorithm.
2791 New code is modified to use the enhanced PKCS12_create()
2792 instead of the low level API.
2795 *) Extend ASN1 encoder to support indefinite length constructed
2796 encoding. This can output sequences tags and octet strings in
2797 this form. Modify pk7_asn1.c to support indefinite length
2798 encoding. This is experimental and needs additional code to
2799 be useful, such as an ASN1 bio and some enhanced streaming
2802 Extend template encode functionality so that tagging is passed
2803 down to the template encoder.
2806 *) Let 'openssl req' fail if an argument to '-newkey' is not
2807 recognized instead of using RSA as a default.
2810 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2811 As these are not official, they are not included in "ALL";
2812 the "ECCdraft" ciphersuite group alias can be used to select them.
2813 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2815 *) Add ECDH engine support.
2816 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2818 *) Add ECDH in new directory crypto/ecdh/.
2819 [Douglas Stebila (Sun Microsystems Laboratories)]
2821 *) Let BN_rand_range() abort with an error after 100 iterations
2822 without success (which indicates a broken PRNG).
2825 *) Change BN_mod_sqrt() so that it verifies that the input value
2826 is really the square of the return value. (Previously,
2827 BN_mod_sqrt would show GIGO behaviour.)
2830 *) Add named elliptic curves over binary fields from X9.62, SECG,
2831 and WAP/WTLS; add OIDs that were still missing.
2833 [Sheueling Chang Shantz and Douglas Stebila
2834 (Sun Microsystems Laboratories)]
2836 *) Extend the EC library for elliptic curves over binary fields
2837 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2840 EC_GF2m_simple_method
2844 EC_GROUP_new_curve_GF2m
2845 EC_GROUP_set_curve_GF2m
2846 EC_GROUP_get_curve_GF2m
2847 EC_POINT_set_affine_coordinates_GF2m
2848 EC_POINT_get_affine_coordinates_GF2m
2849 EC_POINT_set_compressed_coordinates_GF2m
2851 Point compression for binary fields is disabled by default for
2852 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2855 As binary polynomials are represented as BIGNUMs, various members
2856 of the EC_GROUP and EC_POINT data structures can be shared
2857 between the implementations for prime fields and binary fields;
2858 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2859 are essentially identical to their ..._GFp counterparts.
2860 (For simplicity, the '..._GFp' prefix has been dropped from
2861 various internal method names.)
2863 An internal 'field_div' method (similar to 'field_mul' and
2864 'field_sqr') has been added; this is used only for binary fields.
2866 [Sheueling Chang Shantz and Douglas Stebila
2867 (Sun Microsystems Laboratories)]
2869 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2870 through methods ('mul', 'precompute_mult').
2872 The generic implementations (now internally called 'ec_wNAF_mul'
2873 and 'ec_wNAF_precomputed_mult') remain the default if these
2874 methods are undefined.
2876 [Sheueling Chang Shantz and Douglas Stebila
2877 (Sun Microsystems Laboratories)]
2879 *) New function EC_GROUP_get_degree, which is defined through
2880 EC_METHOD. For curves over prime fields, this returns the bit
2881 length of the modulus.
2883 [Sheueling Chang Shantz and Douglas Stebila
2884 (Sun Microsystems Laboratories)]
2886 *) New functions EC_GROUP_dup, EC_POINT_dup.
2887 (These simply call ..._new and ..._copy).
2889 [Sheueling Chang Shantz and Douglas Stebila
2890 (Sun Microsystems Laboratories)]
2892 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2893 Polynomials are represented as BIGNUMs (where the sign bit is not
2894 used) in the following functions [macros]:
2897 BN_GF2m_sub [= BN_GF2m_add]
2898 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2899 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2900 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2902 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2903 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2904 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2905 BN_GF2m_cmp [= BN_ucmp]
2907 (Note that only the 'mod' functions are actually for fields GF(2^m).
2908 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2910 For some functions, an the irreducible polynomial defining a
2911 field can be given as an 'unsigned int[]' with strictly
2912 decreasing elements giving the indices of those bits that are set;
2913 i.e., p[] represents the polynomial
2914 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2916 p[0] > p[1] > ... > p[k] = 0.
2917 This applies to the following functions:
2922 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2923 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2925 BN_GF2m_mod_sqrt_arr
2926 BN_GF2m_mod_solve_quad_arr
2930 Conversion can be performed by the following functions:
2935 bntest.c has additional tests for binary polynomial arithmetic.
2937 Two implementations for BN_GF2m_mod_div() are available.
2938 The default algorithm simply uses BN_GF2m_mod_inv() and
2939 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2940 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2941 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2943 [Sheueling Chang Shantz and Douglas Stebila
2944 (Sun Microsystems Laboratories)]
2946 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2947 functionality is disabled at compile-time.
2948 [Douglas Stebila <douglas.stebila@sun.com>]
2950 *) Change default behaviour of 'openssl asn1parse' so that more
2951 information is visible when viewing, e.g., a certificate:
2953 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2954 mode the content of non-printable OCTET STRINGs is output in a
2955 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2956 avoid the appearance of a printable string.
2957 [Nils Larsch <nla@trustcenter.de>]
2959 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2961 EC_GROUP_set_asn1_flag()
2962 EC_GROUP_get_asn1_flag()
2963 EC_GROUP_set_point_conversion_form()
2964 EC_GROUP_get_point_conversion_form()
2965 These control ASN1 encoding details:
2966 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2967 has been set to OPENSSL_EC_NAMED_CURVE.
2968 - Points are encoded in uncompressed form by default; options for
2969 asn1_for are as for point2oct, namely
2970 POINT_CONVERSION_COMPRESSED
2971 POINT_CONVERSION_UNCOMPRESSED
2972 POINT_CONVERSION_HYBRID
2974 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2977 EC_GROUP_get0_seed()
2978 EC_GROUP_get_seed_len()
2979 This is used only for ASN1 purposes (so far).
2980 [Nils Larsch <nla@trustcenter.de>]
2982 *) Add 'field_type' member to EC_METHOD, which holds the NID
2983 of the appropriate field type OID. The new function
2984 EC_METHOD_get_field_type() returns this value.
2985 [Nils Larsch <nla@trustcenter.de>]
2990 EC_POINT_point2hex()
2991 EC_POINT_hex2point()
2992 providing useful interfaces to EC_POINT_point2oct() and
2993 EC_POINT_oct2point().
2994 [Nils Larsch <nla@trustcenter.de>]
2996 *) Change internals of the EC library so that the functions
2997 EC_GROUP_set_generator()
2998 EC_GROUP_get_generator()
2999 EC_GROUP_get_order()
3000 EC_GROUP_get_cofactor()
3001 are implemented directly in crypto/ec/ec_lib.c and not dispatched
3002 to methods, which would lead to unnecessary code duplication when
3003 adding different types of curves.
3004 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
3006 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
3007 arithmetic, and such that modified wNAFs are generated
3008 (which avoid length expansion in many cases).
3011 *) Add a function EC_GROUP_check_discriminant() (defined via
3012 EC_METHOD) that verifies that the curve discriminant is non-zero.
3014 Add a function EC_GROUP_check() that makes some sanity tests
3015 on a EC_GROUP, its generator and order. This includes
3016 EC_GROUP_check_discriminant().
3017 [Nils Larsch <nla@trustcenter.de>]
3019 *) Add ECDSA in new directory crypto/ecdsa/.
3021 Add applications 'openssl ecparam' and 'openssl ecdsa'
3022 (these are based on 'openssl dsaparam' and 'openssl dsa').
3024 ECDSA support is also included in various other files across the
3025 library. Most notably,
3026 - 'openssl req' now has a '-newkey ecdsa:file' option;
3027 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
3028 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
3029 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
3030 them suitable for ECDSA where domain parameters must be
3031 extracted before the specific public key;
3032 - ECDSA engine support has been added.
3033 [Nils Larsch <nla@trustcenter.de>]
3035 *) Include some named elliptic curves, and add OIDs from X9.62,
3036 SECG, and WAP/WTLS. Each curve can be obtained from the new
3038 EC_GROUP_new_by_curve_name(),
3039 and the list of available named curves can be obtained with
3040 EC_get_builtin_curves().
3041 Also add a 'curve_name' member to EC_GROUP objects, which can be
3043 EC_GROUP_set_curve_name()
3044 EC_GROUP_get_curve_name()
3045 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
3047 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3048 was actually never needed) and in BN_mul(). The removal in BN_mul()
3049 required a small change in bn_mul_part_recursive() and the addition
3050 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3051 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3052 bn_sub_words() and bn_add_words() except they take arrays with
3056 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
3058 *) Cleanse PEM buffers before freeing them since they may contain
3060 [Benjamin Bennett <ben@psc.edu>]
3062 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3063 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3064 authentication-only ciphersuites.
3067 *) Since AES128 and AES256 share a single mask bit in the logic of
3068 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3069 kludge to work properly if AES128 is available and AES256 isn't.
3072 *) Expand security boundary to match 1.1.1 module.
3075 *) Remove redundant features: hash file source, editing of test vectors
3076 modify fipsld to use external fips_premain.c signature.
3079 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3080 run algorithm test programs.
3083 *) Make algorithm test programs more tolerant of whitespace.
3086 *) Have SSL/TLS server implementation tolerate "mismatched" record
3087 protocol version while receiving ClientHello even if the
3088 ClientHello is fragmented. (The server can't insist on the
3089 particular protocol version it has chosen before the ServerHello
3090 message has informed the client about his choice.)
3093 *) Load error codes if they are not already present instead of using a
3094 static variable. This allows them to be cleanly unloaded and reloaded.
3097 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3099 *) Introduce limits to prevent malicious keys being able to
3100 cause a denial of service. (CVE-2006-2940)
3101 [Steve Henson, Bodo Moeller]
3103 *) Fix ASN.1 parsing of certain invalid structures that can result
3104 in a denial of service. (CVE-2006-2937) [Steve Henson]
3106 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3107 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3109 *) Fix SSL client code which could crash if connecting to a
3110 malicious SSLv2 server. (CVE-2006-4343)
3111 [Tavis Ormandy and Will Drewry, Google Security Team]
3113 *) Change ciphersuite string processing so that an explicit
3114 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3115 will no longer include "AES128-SHA"), and any other similar
3116 ciphersuite (same bitmap) from *other* protocol versions (so that
3117 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3118 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3119 changes from 0.9.8b and 0.9.8d.
3122 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3124 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3125 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3127 *) Change the Unix randomness entropy gathering to use poll() when
3128 possible instead of select(), since the latter has some
3129 undesirable limitations.
3130 [Darryl Miles via Richard Levitte and Bodo Moeller]
3132 *) Disable rogue ciphersuites:
3134 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3135 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3136 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3138 The latter two were purportedly from
3139 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3142 Also deactive the remaining ciphersuites from
3143 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3144 unofficial, and the ID has long expired.
3147 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3148 dual-core machines) and other potential thread-safety issues.
3151 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3153 *) Adapt fipsld and the build system to link against the validated FIPS
3154 module in FIPS mode.
3157 *) Fixes for VC++ 2005 build under Windows.
3160 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3161 from a Windows bash shell such as MSYS. It is autodetected from the
3162 "config" script when run from a VC++ environment. Modify standard VC++
3163 build to use fipscanister.o from the GNU make build.
3166 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3168 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3169 The value now differs depending on if you build for FIPS or not.
3170 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3171 safely run with a non-FIPSed libcrypto, as it may crash because of
3172 the difference induced by this change.
3175 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3177 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3178 (part of SSL_OP_ALL). This option used to disable the
3179 countermeasure against man-in-the-middle protocol-version
3180 rollback in the SSL 2.0 server implementation, which is a bad
3181 idea. (CVE-2005-2969)
3183 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3184 for Information Security, National Institute of Advanced Industrial
3185 Science and Technology [AIST], Japan)]
3187 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3188 mainly for FIPS compliance and not fully integrated at this stage.
3191 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3192 the exponentiation using a fixed-length exponent. (Otherwise,
3193 the information leaked through timing could expose the secret key
3194 after many signatures; cf. Bleichenbacher's attack on DSA with
3198 *) Make a new fixed-window mod_exp implementation the default for
3199 RSA, DSA, and DH private-key operations so that the sequence of
3200 squares and multiplies and the memory access pattern are
3201 independent of the particular secret key. This will mitigate
3202 cache-timing and potential related attacks.
3204 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3205 and this is automatically used by BN_mod_exp_mont() if the new flag
3206 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3207 will use this BN flag for private exponents unless the flag
3208 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3209 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3211 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3213 *) Change the client implementation for SSLv23_method() and
3214 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3215 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3216 (Previously, the SSL 2.0 backwards compatible Client Hello
3217 message format would be used even with SSL_OP_NO_SSLv2.)
3220 *) Add support for smime-type MIME parameter in S/MIME messages which some
3224 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3225 a threadsafe manner. Modify rsa code to use new function and add calls
3226 to dsa and dh code (which had race conditions before).
3229 *) Include the fixed error library code in the C error file definitions
3230 instead of fixing them up at runtime. This keeps the error code
3231 structures constant.
3234 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3236 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3239 *) Fixes for newer kerberos headers. NB: the casts are needed because
3240 the 'length' field is signed on one version and unsigned on another
3241 with no (?) obvious way to tell the difference, without these VC++
3242 complains. Also the "definition" of FAR (blank) is no longer included
3243 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3244 some needed definitions.
3247 *) Undo Cygwin change.
3250 *) Added support for proxy certificates according to RFC 3820.
3251 Because they may be a security thread to unaware applications,
3252 they must be explicitely allowed in run-time. See
3253 docs/HOWTO/proxy_certificates.txt for further information.
3256 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3258 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3259 server and client random values. Previously
3260 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3261 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3263 This change has negligible security impact because:
3265 1. Server and client random values still have 24 bytes of pseudo random
3268 2. Server and client random values are sent in the clear in the initial
3271 3. The master secret is derived using the premaster secret (48 bytes in
3272 size for static RSA ciphersuites) as well as client server and random
3275 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3278 [Stephen Henson, reported by UK NISCC]
3280 *) Use Windows randomness collection on Cygwin.
3283 *) Fix hang in EGD/PRNGD query when communication socket is closed
3284 prematurely by EGD/PRNGD.
3285 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3287 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3290 *) Back-port of selected performance improvements from development
3291 branch, as well as improved support for PowerPC platforms.
3294 *) Add lots of checks for memory allocation failure, error codes to indicate
3295 failure and freeing up memory if a failure occurs.
3296 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3298 *) Add new -passin argument to dgst.
3301 *) Perform some character comparisons of different types in X509_NAME_cmp:
3302 this is needed for some certificates that reencode DNs into UTF8Strings
3303 (in violation of RFC3280) and can't or wont issue name rollover
3307 *) Make an explicit check during certificate validation to see that
3308 the CA setting in each certificate on the chain is correct. As a
3309 side effect always do the following basic checks on extensions,
3310 not just when there's an associated purpose to the check:
3312 - if there is an unhandled critical extension (unless the user
3313 has chosen to ignore this fault)
3314 - if the path length has been exceeded (if one is set at all)
3315 - that certain extensions fit the associated purpose (if one has
3319 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3321 *) Avoid a race condition when CRLs are checked in a multi threaded
3322 environment. This would happen due to the reordering of the revoked
3323 entries during signature checking and serial number lookup. Now the
3324 encoding is cached and the serial number sort performed under a lock.
3325 Add new STACK function sk_is_sorted().
3328 *) Add Delta CRL to the extension code.
3331 *) Various fixes to s3_pkt.c so alerts are sent properly.
3332 [David Holmes <d.holmes@f5.com>]
3334 *) Reduce the chances of duplicate issuer name and serial numbers (in
3335 violation of RFC3280) using the OpenSSL certificate creation utilities.
3336 This is done by creating a random 64 bit value for the initial serial
3337 number when a serial number file is created or when a self signed
3338 certificate is created using 'openssl req -x509'. The initial serial
3339 number file is created using 'openssl x509 -next_serial' in CA.pl
3340 rather than being initialized to 1.
3343 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3345 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3346 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3347 [Joe Orton, Steve Henson]
3349 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3351 [Joe Orton, Steve Henson]
3353 *) Make it possible to have multiple active certificates with the same
3354 subject in the CA index file. This is done only if the keyword
3355 'unique_subject' is set to 'no' in the main CA section (default
3356 if 'CA_default') of the configuration file. The value is saved
3357 with the database itself in a separate index attribute file,
3358 named like the index file with '.attr' appended to the name.
3361 *) X509 verify fixes. Disable broken certificate workarounds when
3362 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3363 keyUsage extension present. Don't accept CRLs with unhandled critical
3364 extensions: since verify currently doesn't process CRL extensions this
3365 rejects a CRL with *any* critical extensions. Add new verify error codes
3369 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3370 A clarification of RFC2560 will require the use of OCTET STRINGs and
3371 some implementations cannot handle the current raw format. Since OpenSSL
3372 copies and compares OCSP nonces as opaque blobs without any attempt at
3373 parsing them this should not create any compatibility issues.
3376 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3377 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3378 this HMAC (and other) operations are several times slower than OpenSSL
3382 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3383 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3385 *) Use the correct content when signing type "other".
3388 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3390 *) Fix various bugs revealed by running the NISCC test suite:
3392 Stop out of bounds reads in the ASN1 code when presented with
3393 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3395 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3397 If verify callback ignores invalid public key errors don't try to check
3398 certificate signature with the NULL public key.
3402 *) New -ignore_err option in ocsp application to stop the server
3403 exiting on the first error in a request.
3406 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3407 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3411 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3412 extra data after the compression methods not only for TLS 1.0
3413 but also for SSL 3.0 (as required by the specification).
3414 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3416 *) Change X509_certificate_type() to mark the key as exported/exportable
3417 when it's 512 *bits* long, not 512 bytes.
3420 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3421 blocks during encryption.
3424 *) Various fixes to base64 BIO and non blocking I/O. On write
3425 flushes were not handled properly if the BIO retried. On read
3426 data was not being buffered properly and had various logic bugs.
3427 This also affects blocking I/O when the data being decoded is a
3431 *) Various S/MIME bugfixes and compatibility changes:
3432 output correct application/pkcs7 MIME type if
3433 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3434 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3435 of files as .eml work). Correctly handle very long lines in MIME
3439 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3441 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3442 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3443 a protocol version number mismatch like a decryption error
3444 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3447 *) Turn on RSA blinding by default in the default implementation
3448 to avoid a timing attack. Applications that don't want it can call
3449 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3450 They would be ill-advised to do so in most cases.
3451 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3453 *) Change RSA blinding code so that it works when the PRNG is not
3454 seeded (in this case, the secret RSA exponent is abused as
3455 an unpredictable seed -- if it is not unpredictable, there
3456 is no point in blinding anyway). Make RSA blinding thread-safe
3457 by remembering the creator's thread ID in rsa->blinding and
3458 having all other threads use local one-time blinding factors
3459 (this requires more computation than sharing rsa->blinding, but
3460 avoids excessive locking; and if an RSA object is not shared
3461 between threads, blinding will still be very fast).
3464 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3465 ENGINE as defaults for all supported algorithms irrespective of
3466 the 'flags' parameter. 'flags' is now honoured, so applications
3467 should make sure they are passing it correctly.
3470 *) Target "mingw" now allows native Windows code to be generated in
3471 the Cygwin environment as well as with the MinGW compiler.
3474 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3476 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3477 via timing by performing a MAC computation even if incorrrect
3478 block cipher padding has been found. This is a countermeasure
3479 against active attacks where the attacker has to distinguish
3480 between bad padding and a MAC verification error. (CVE-2003-0078)
3482 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3483 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3484 Martin Vuagnoux (EPFL, Ilion)]
3486 *) Make the no-err option work as intended. The intention with no-err
3487 is not to have the whole error stack handling routines removed from
3488 libcrypto, it's only intended to remove all the function name and
3489 reason texts, thereby removing some of the footprint that may not
3490 be interesting if those errors aren't displayed anyway.
3492 NOTE: it's still possible for any application or module to have it's
3493 own set of error texts inserted. The routines are there, just not
3494 used by default when no-err is given.
3497 *) Add support for FreeBSD on IA64.
3498 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3500 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3501 Kerberos function mit_des_cbc_cksum(). Before this change,
3502 the value returned by DES_cbc_cksum() was like the one from
3503 mit_des_cbc_cksum(), except the bytes were swapped.
3504 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3506 *) Allow an application to disable the automatic SSL chain building.
3507 Before this a rather primitive chain build was always performed in
3508 ssl3_output_cert_chain(): an application had no way to send the
3509 correct chain if the automatic operation produced an incorrect result.
3511 Now the chain builder is disabled if either:
3513 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3515 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3517 The reasoning behind this is that an application would not want the
3518 auto chain building to take place if extra chain certificates are
3519 present and it might also want a means of sending no additional
3520 certificates (for example the chain has two certificates and the
3524 *) Add the possibility to build without the ENGINE framework.
3525 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3527 *) Under Win32 gmtime() can return NULL: check return value in
3528 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3531 *) DSA routines: under certain error conditions uninitialized BN objects
3532 could be freed. Solution: make sure initialization is performed early
3533 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3534 Nils Larsch <nla@trustcenter.de> via PR#459)
3537 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3538 checked on reconnect on the client side, therefore session resumption
3539 could still fail with a "ssl session id is different" error. This
3540 behaviour is masked when SSL_OP_ALL is used due to
3541 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3542 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3543 followup to PR #377.
3546 *) IA-32 assembler support enhancements: unified ELF targets, support
3547 for SCO/Caldera platforms, fix for Cygwin shared build.
3550 *) Add support for FreeBSD on sparc64. As a consequence, support for
3551 FreeBSD on non-x86 processors is separate from x86 processors on
3552 the config script, much like the NetBSD support.
3553 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3555 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3557 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3560 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3561 code (06) was taken as the first octet of the session ID and the last
3562 octet was ignored consequently. As a result SSLv2 client side session
3563 caching could not have worked due to the session ID mismatch between
3565 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3569 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3570 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3574 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3575 seems that in spite of existing for more than a year, many application
3576 author have done nothing to provide the necessary callbacks, which
3577 means that this particular engine will not work properly anywhere.
3578 This is a very unfortunate situation which forces us, in the name
3579 of usability, to give the hw_ncipher.c a static lock, which is part
3581 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3582 appear in 0.9.8 or later. We EXPECT application authors to have
3583 dealt properly with this when 0.9.8 is released (unless we actually
3584 make such changes in the libcrypto locking code that changes will
3585 have to be made anyway).
3588 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3589 octets have been read, EOF or an error occurs. Without this change
3590 some truncated ASN1 structures will not produce an error.
3593 *) Disable Heimdal support, since it hasn't been fully implemented.
3594 Still give the possibility to force the use of Heimdal, but with
3595 warnings and a request that patches get sent to openssl-dev.
3598 *) Add the VC-CE target, introduce the WINCE sysname, and add
3599 INSTALL.WCE and appropriate conditionals to make it build.
3600 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3602 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3603 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3604 edit numbers of the version.
3605 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3607 *) Introduce safe string copy and catenation functions
3608 (BUF_strlcpy() and BUF_strlcat()).
3609 [Ben Laurie (CHATS) and Richard Levitte]
3611 *) Avoid using fixed-size buffers for one-line DNs.
3612 [Ben Laurie (CHATS)]
3614 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3615 resizing buffers containing secrets, and use where appropriate.
3616 [Ben Laurie (CHATS)]
3618 *) Avoid using fixed size buffers for configuration file location.
3619 [Ben Laurie (CHATS)]
3621 *) Avoid filename truncation for various CA files.
3622 [Ben Laurie (CHATS)]
3624 *) Use sizeof in preference to magic numbers.
3625 [Ben Laurie (CHATS)]
3627 *) Avoid filename truncation in cert requests.
3628 [Ben Laurie (CHATS)]
3630 *) Add assertions to check for (supposedly impossible) buffer
3632 [Ben Laurie (CHATS)]
3634 *) Don't cache truncated DNS entries in the local cache (this could
3635 potentially lead to a spoofing attack).
3636 [Ben Laurie (CHATS)]
3638 *) Fix various buffers to be large enough for hex/decimal
3639 representations in a platform independent manner.
3640 [Ben Laurie (CHATS)]
3642 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3643 resizing buffers containing secrets, and use where appropriate.
3644 [Ben Laurie (CHATS)]
3646 *) Add BIO_indent() to avoid much slightly worrying code to do
3648 [Ben Laurie (CHATS)]
3650 *) Convert sprintf()/BIO_puts() to BIO_printf().
3651 [Ben Laurie (CHATS)]
3653 *) buffer_gets() could terminate with the buffer only half
3655 [Ben Laurie (CHATS)]
3657 *) Add assertions to prevent user-supplied crypto functions from
3658 overflowing internal buffers by having large block sizes, etc.
3659 [Ben Laurie (CHATS)]
3661 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3663 [Ben Laurie (CHATS)]
3665 *) Eliminate unused copy of key in RC4.
3666 [Ben Laurie (CHATS)]
3668 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3669 [Ben Laurie (CHATS)]
3671 *) Fix off-by-one error in EGD path.
3672 [Ben Laurie (CHATS)]
3674 *) If RANDFILE path is too long, ignore instead of truncating.
3675 [Ben Laurie (CHATS)]
3677 *) Eliminate unused and incorrectly sized X.509 structure
3679 [Ben Laurie (CHATS)]
3681 *) Eliminate unused and dangerous function knumber().
3682 [Ben Laurie (CHATS)]
3684 *) Eliminate unused and dangerous structure, KSSL_ERR.
3685 [Ben Laurie (CHATS)]
3687 *) Protect against overlong session ID context length in an encoded
3688 session object. Since these are local, this does not appear to be
3690 [Ben Laurie (CHATS)]
3692 *) Change from security patch (see 0.9.6e below) that did not affect
3693 the 0.9.6 release series:
3695 Remote buffer overflow in SSL3 protocol - an attacker could
3696 supply an oversized master key in Kerberos-enabled versions.
3698 [Ben Laurie (CHATS)]
3700 *) Change the SSL kerb5 codes to match RFC 2712.
3703 *) Make -nameopt work fully for req and add -reqopt switch.
3704 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3706 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3707 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3709 *) Make sure tests can be performed even if the corresponding algorithms
3710 have been removed entirely. This was also the last step to make
3711 OpenSSL compilable with DJGPP under all reasonable conditions.
3712 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3714 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3715 to allow version independent disabling of normally unselected ciphers,
3716 which may be activated as a side-effect of selecting a single cipher.
3718 (E.g., cipher list string "RSA" enables ciphersuites that are left
3719 out of "ALL" because they do not provide symmetric encryption.
3720 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3721 [Lutz Jaenicke, Bodo Moeller]
3723 *) Add appropriate support for separate platform-dependent build
3724 directories. The recommended way to make a platform-dependent
3725 build directory is the following (tested on Linux), maybe with
3728 # Place yourself outside of the OpenSSL source tree. In
3729 # this example, the environment variable OPENSSL_SOURCE
3730 # is assumed to contain the absolute OpenSSL source directory.
3731 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3732 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3733 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3734 mkdir -p `dirname $F`
3735 ln -s $OPENSSL_SOURCE/$F $F
3738 To be absolutely sure not to disturb the source tree, a "make clean"
3739 is a good thing. If it isn't successfull, don't worry about it,
3740 it probably means the source directory is very clean.
3743 *) Make sure any ENGINE control commands make local copies of string
3744 pointers passed to them whenever necessary. Otherwise it is possible
3745 the caller may have overwritten (or deallocated) the original string
3746 data when a later ENGINE operation tries to use the stored values.
3747 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3749 *) Improve diagnostics in file reading and command-line digests.
3750 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3752 *) Add AES modes CFB and OFB to the object database. Correct an
3753 error in AES-CFB decryption.
3756 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3757 allows existing EVP_CIPHER_CTX structures to be reused after
3758 calling EVP_*Final(). This behaviour is used by encryption
3759 BIOs and some applications. This has the side effect that
3760 applications must explicitly clean up cipher contexts with
3761 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3764 *) Check the values of dna and dnb in bn_mul_recursive before calling
3765 bn_mul_comba (a non zero value means the a or b arrays do not contain
3766 n2 elements) and fallback to bn_mul_normal if either is not zero.
3769 *) Fix escaping of non-ASCII characters when using the -subj option
3770 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3773 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3774 form for "surname", serialNumber has no short form.
3775 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3776 therefore remove "mail" short name for "internet 7".
3777 The OID for unique identifiers in X509 certificates is
3778 x500UniqueIdentifier, not uniqueIdentifier.
3779 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3782 *) Add an "init" command to the ENGINE config module and auto initialize
3783 ENGINEs. Without any "init" command the ENGINE will be initialized
3784 after all ctrl commands have been executed on it. If init=1 the
3785 ENGINE is initailized at that point (ctrls before that point are run
3786 on the uninitialized ENGINE and after on the initialized one). If
3787 init=0 then the ENGINE will not be iniatialized at all.
3790 *) Fix the 'app_verify_callback' interface so that the user-defined
3791 argument is actually passed to the callback: In the
3792 SSL_CTX_set_cert_verify_callback() prototype, the callback
3793 declaration has been changed from
3796 int (*cb)(X509_STORE_CTX *,void *);
3797 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3798 i=s->ctx->app_verify_callback(&ctx)
3799 has been changed into
3800 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3802 To update applications using SSL_CTX_set_cert_verify_callback(),
3803 a dummy argument can be added to their callback functions.
3804 [D. K. Smetters <smetters@parc.xerox.com>]
3806 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3807 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3809 *) Add and OPENSSL_LOAD_CONF define which will cause
3810 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3811 This allows older applications to transparently support certain
3812 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3813 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3814 load the config file and OPENSSL_add_all_algorithms_conf() which will
3815 always load it have also been added.
3818 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3819 Adjust NIDs and EVP layer.
3820 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3822 *) Config modules support in openssl utility.
3824 Most commands now load modules from the config file,
3825 though in a few (such as version) this isn't done
3826 because it couldn't be used for anything.
3828 In the case of ca and req the config file used is
3829 the same as the utility itself: that is the -config
3830 command line option can be used to specify an
3834 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3835 use "openssl_conf" if filename is NULL use default openssl config file.
3838 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3839 config section name. Add a new flag to tolerate a missing config file
3840 and move code to CONF_modules_load_file().
3843 *) Support for crypto accelerator cards from Accelerated Encryption
3844 Processing, www.aep.ie. (Use engine 'aep')
3845 The support was copied from 0.9.6c [engine] and adapted/corrected
3846 to work with the new engine framework.
3847 [AEP Inc. and Richard Levitte]
3849 *) Support for SureWare crypto accelerator cards from Baltimore
3850 Technologies. (Use engine 'sureware')
3851 The support was copied from 0.9.6c [engine] and adapted
3852 to work with the new engine framework.
3855 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3856 make the newer ENGINE framework commands for the CHIL engine work.
3857 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3859 *) Make it possible to produce shared libraries on ReliantUNIX.
3860 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3862 *) Add the configuration target debug-linux-ppro.
3863 Make 'openssl rsa' use the general key loading routines
3864 implemented in apps.c, and make those routines able to
3865 handle the key format FORMAT_NETSCAPE and the variant
3867 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3869 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3870 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3872 *) Add -keyform to rsautl, and document -engine.
3873 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3875 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3876 BIO_R_NO_SUCH_FILE error code rather than the generic
3877 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3880 *) Add new functions
3882 ERR_peek_last_error_line
3883 ERR_peek_last_error_line_data.
3884 These are similar to
3887 ERR_peek_error_line_data,
3888 but report on the latest error recorded rather than the first one
3889 still in the error queue.
3890 [Ben Laurie, Bodo Moeller]
3892 *) default_algorithms option in ENGINE config module. This allows things
3894 default_algorithms = ALL
3895 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3898 *) Prelminary ENGINE config module.
3901 *) New experimental application configuration code.
3904 *) Change the AES code to follow the same name structure as all other
3905 symmetric ciphers, and behave the same way. Move everything to
3906 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3907 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3909 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3910 [Ben Laurie and Theo de Raadt]
3912 *) Add option to output public keys in req command.
3913 [Massimiliano Pala madwolf@openca.org]
3915 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3916 (up to about 10% better than before for P-192 and P-224).
3919 *) New functions/macros
3921 SSL_CTX_set_msg_callback(ctx, cb)
3922 SSL_CTX_set_msg_callback_arg(ctx, arg)
3923 SSL_set_msg_callback(ssl, cb)
3924 SSL_set_msg_callback_arg(ssl, arg)
3926 to request calling a callback function
3928 void cb(int write_p, int version, int content_type,
3929 const void *buf, size_t len, SSL *ssl, void *arg)
3931 whenever a protocol message has been completely received
3932 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3933 protocol version according to which the SSL library interprets
3934 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3935 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3936 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3937 specification (change_cipher_spec(20), alert(21), handshake(22)).
3938 'buf' and 'len' point to the actual message, 'ssl' to the
3939 SSL object, and 'arg' is the application-defined value set by
3940 SSL[_CTX]_set_msg_callback_arg().
3942 'openssl s_client' and 'openssl s_server' have new '-msg' options
3943 to enable a callback that displays all protocol messages.
3946 *) Change the shared library support so shared libraries are built as
3947 soon as the corresponding static library is finished, and thereby get
3948 openssl and the test programs linked against the shared library.
3949 This still only happens when the keyword "shard" has been given to
3950 the configuration scripts.
3952 NOTE: shared library support is still an experimental thing, and
3953 backward binary compatibility is still not guaranteed.
3954 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3956 *) Add support for Subject Information Access extension.
3957 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3959 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3960 additional bytes when new memory had to be allocated, not just
3961 when reusing an existing buffer.
3964 *) New command line and configuration option 'utf8' for the req command.
3965 This allows field values to be specified as UTF8 strings.
3968 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3969 runs for the former and machine-readable output for the latter.
3972 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3973 of the e-mail address in the DN (i.e., it will go into a certificate
3974 extension only). The new configuration file option 'email_in_dn = no'
3975 has the same effect.
3976 [Massimiliano Pala madwolf@openca.org]
3978 *) Change all functions with names starting with des_ to be starting
3979 with DES_ instead. Add wrappers that are compatible with libdes,
3980 but are named _ossl_old_des_*. Finally, add macros that map the
3981 des_* symbols to the corresponding _ossl_old_des_* if libdes
3982 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3983 desired, the des_* symbols will be mapped to DES_*, with one
3986 Since we provide two compatibility mappings, the user needs to
3987 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3988 compatibility is desired. The default (i.e., when that macro
3989 isn't defined) is OpenSSL 0.9.6c compatibility.
3991 There are also macros that enable and disable the support of old
3992 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3993 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3994 are defined, the default will apply: to support the old des routines.
3996 In either case, one must include openssl/des.h to get the correct
3997 definitions. Do not try to just include openssl/des_old.h, that
4000 NOTE: This is a major break of an old API into a new one. Software
4001 authors are encouraged to switch to the DES_ style functions. Some
4002 time in the future, des_old.h and the libdes compatibility functions
4003 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
4004 default), and then completely removed.
4007 *) Test for certificates which contain unsupported critical extensions.
4008 If such a certificate is found during a verify operation it is
4009 rejected by default: this behaviour can be overridden by either
4010 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
4011 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
4012 X509_supported_extension() has also been added which returns 1 if a
4013 particular extension is supported.
4016 *) Modify the behaviour of EVP cipher functions in similar way to digests
4017 to retain compatibility with existing code.
4020 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
4021 compatibility with existing code. In particular the 'ctx' parameter does
4022 not have to be to be initialized before the call to EVP_DigestInit() and
4023 it is tidied up after a call to EVP_DigestFinal(). New function
4024 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
4025 EVP_MD_CTX_copy() changed to not require the destination to be
4026 initialized valid and new function EVP_MD_CTX_copy_ex() added which
4027 requires the destination to be valid.
4029 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
4030 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
4033 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
4034 so that complete 'Handshake' protocol structures are kept in memory
4035 instead of overwriting 'msg_type' and 'length' with 'body' data.
4038 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
4039 [Massimo Santin via Richard Levitte]
4041 *) Major restructuring to the underlying ENGINE code. This includes
4042 reduction of linker bloat, separation of pure "ENGINE" manipulation
4043 (initialisation, etc) from functionality dealing with implementations
4044 of specific crypto iterfaces. This change also introduces integrated
4045 support for symmetric ciphers and digest implementations - so ENGINEs
4046 can now accelerate these by providing EVP_CIPHER and EVP_MD
4047 implementations of their own. This is detailed in crypto/engine/README
4048 as it couldn't be adequately described here. However, there are a few
4049 API changes worth noting - some RSA, DSA, DH, and RAND functions that
4050 were changed in the original introduction of ENGINE code have now
4051 reverted back - the hooking from this code to ENGINE is now a good
4052 deal more passive and at run-time, operations deal directly with
4053 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
4054 dereferencing through an ENGINE pointer any more. Also, the ENGINE
4055 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
4056 they were not being used by the framework as there is no concept of a
4057 BIGNUM_METHOD and they could not be generalised to the new
4058 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
4059 ENGINE_cpy() has been removed as it cannot be consistently defined in
4063 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
4066 *) Change mkdef.pl to sort symbols that get the same entry number,
4067 and make sure the automatically generated functions ERR_load_*
4068 become part of libeay.num as well.
4071 *) New function SSL_renegotiate_pending(). This returns true once
4072 renegotiation has been requested (either SSL_renegotiate() call
4073 or HelloRequest/ClientHello receveived from the peer) and becomes
4074 false once a handshake has been completed.
4075 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
4076 sends a HelloRequest, but does not ensure that a handshake takes
4077 place. SSL_renegotiate_pending() is useful for checking if the
4078 client has followed the request.)
4081 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
4082 By default, clients may request session resumption even during
4083 renegotiation (if session ID contexts permit); with this option,
4084 session resumption is possible only in the first handshake.
4086 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
4087 more bits available for options that should not be part of
4088 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
4091 *) Add some demos for certificate and certificate request creation.
4094 *) Make maximum certificate chain size accepted from the peer application
4095 settable (SSL*_get/set_max_cert_list()), as proposed by
4096 "Douglas E. Engert" <deengert@anl.gov>.
4099 *) Add support for shared libraries for Unixware-7
4100 (Boyd Lynn Gerber <gerberb@zenez.com>).
4103 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
4104 be done prior to destruction. Use this to unload error strings from
4105 ENGINEs that load their own error strings. NB: This adds two new API
4106 functions to "get" and "set" this destroy handler in an ENGINE.
4109 *) Alter all existing ENGINE implementations (except "openssl" and
4110 "openbsd") to dynamically instantiate their own error strings. This
4111 makes them more flexible to be built both as statically-linked ENGINEs
4112 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
4113 Also, add stub code to each that makes building them as self-contained
4114 shared-libraries easier (see README.ENGINE).
4117 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
4118 implementations into applications that are completely implemented in
4119 self-contained shared-libraries. The "dynamic" ENGINE exposes control
4120 commands that can be used to configure what shared-library to load and
4121 to control aspects of the way it is handled. Also, made an update to
4122 the README.ENGINE file that brings its information up-to-date and
4123 provides some information and instructions on the "dynamic" ENGINE
4124 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4127 *) Make it possible to unload ranges of ERR strings with a new
4128 "ERR_unload_strings" function.
4131 *) Add a copy() function to EVP_MD.
4134 *) Make EVP_MD routines take a context pointer instead of just the
4135 md_data void pointer.
4138 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4139 that the digest can only process a single chunk of data
4140 (typically because it is provided by a piece of
4141 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4142 is only going to provide a single chunk of data, and hence the
4143 framework needn't accumulate the data for oneshot drivers.
4146 *) As with "ERR", make it possible to replace the underlying "ex_data"
4147 functions. This change also alters the storage and management of global
4148 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4149 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4150 index counters. The API functions that use this state have been changed
4151 to take a "class_index" rather than pointers to the class's local STACK
4152 and counter, and there is now an API function to dynamically create new
4153 classes. This centralisation allows us to (a) plug a lot of the
4154 thread-safety problems that existed, and (b) makes it possible to clean
4155 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4156 such data would previously have always leaked in application code and
4157 workarounds were in place to make the memory debugging turn a blind eye
4158 to it. Application code that doesn't use this new function will still
4159 leak as before, but their memory debugging output will announce it now
4160 rather than letting it slide.
4162 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4163 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4164 has a return value to indicate success or failure.
4167 *) Make it possible to replace the underlying "ERR" functions such that the
4168 global state (2 LHASH tables and 2 locks) is only used by the "default"
4169 implementation. This change also adds two functions to "get" and "set"
4170 the implementation prior to it being automatically set the first time
4171 any other ERR function takes place. Ie. an application can call "get",
4172 pass the return value to a module it has just loaded, and that module
4173 can call its own "set" function using that value. This means the
4174 module's "ERR" operations will use (and modify) the error state in the
4175 application and not in its own statically linked copy of OpenSSL code.
4178 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4179 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4180 the operation, and provides a more encapsulated way for external code
4181 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4182 to use these functions rather than manually incrementing the counts.
4184 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4187 *) Add EVP test program.
4190 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4193 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4194 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4195 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4196 These allow a CRL to be built without having to access X509_CRL fields
4197 directly. Modify 'ca' application to use new functions.
4200 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4201 bug workarounds. Rollback attack detection is a security feature.
4202 The problem will only arise on OpenSSL servers when TLSv1 is not
4203 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4204 Software authors not wanting to support TLSv1 will have special reasons
4205 for their choice and can explicitly enable this option.
4206 [Bodo Moeller, Lutz Jaenicke]
4208 *) Rationalise EVP so it can be extended: don't include a union of
4209 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4210 (similar to those existing for EVP_CIPHER_CTX).
4215 EVP_MD_CTX_init(&md); /* new function call */
4216 EVP_DigestInit(&md, EVP_sha1());
4217 EVP_DigestUpdate(&md, in, len);
4218 EVP_DigestFinal(&md, out, NULL);
4219 EVP_MD_CTX_cleanup(&md); /* new function call */
4223 *) Make DES key schedule conform to the usual scheme, as well as
4224 correcting its structure. This means that calls to DES functions
4225 now have to pass a pointer to a des_key_schedule instead of a
4226 plain des_key_schedule (which was actually always a pointer
4229 des_key_schedule ks;
4231 des_set_key_checked(..., &ks);
4232 des_ncbc_encrypt(..., &ks, ...);
4234 (Note that a later change renames 'des_...' into 'DES_...'.)
4237 *) Initial reduction of linker bloat: the use of some functions, such as
4238 PEM causes large amounts of unused functions to be linked in due to
4239 poor organisation. For example pem_all.c contains every PEM function
4240 which has a knock on effect of linking in large amounts of (unused)
4241 ASN1 code. Grouping together similar functions and splitting unrelated
4242 functions prevents this.
4245 *) Cleanup of EVP macros.
4248 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4249 correct _ecb suffix.
4252 *) Add initial OCSP responder support to ocsp application. The
4253 revocation information is handled using the text based index
4254 use by the ca application. The responder can either handle
4255 requests generated internally, supplied in files (for example
4256 via a CGI script) or using an internal minimal server.
4259 *) Add configuration choices to get zlib compression for TLS.
4262 *) Changes to Kerberos SSL for RFC 2712 compliance:
4263 1. Implemented real KerberosWrapper, instead of just using
4264 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4265 2. Implemented optional authenticator field of KerberosWrapper.
4267 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4268 and authenticator structs; see crypto/krb5/.
4270 Generalized Kerberos calls to support multiple Kerberos libraries.
4271 [Vern Staats <staatsvr@asc.hpc.mil>,
4272 Jeffrey Altman <jaltman@columbia.edu>
4273 via Richard Levitte]
4275 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4276 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4277 values for each of the key sizes rather than having just
4278 parameters (and 'speed' generating keys each time).
4281 *) Speed up EVP routines.
4284 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4285 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4286 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4287 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4289 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4290 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4291 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4294 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4296 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4299 *) Added the OS2-EMX target.
4300 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4302 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4303 to support NCONF routines in extension code. New function CONF_set_nconf()
4304 to allow functions which take an NCONF to also handle the old LHASH
4305 structure: this means that the old CONF compatible routines can be
4306 retained (in particular wrt extensions) without having to duplicate the
4307 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4310 *) Enhance the general user interface with mechanisms for inner control
4311 and with possibilities to have yes/no kind of prompts.
4314 *) Change all calls to low level digest routines in the library and
4315 applications to use EVP. Add missing calls to HMAC_cleanup() and
4316 don't assume HMAC_CTX can be copied using memcpy().
4317 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4319 *) Add the possibility to control engines through control names but with
4320 arbitrary arguments instead of just a string.
4321 Change the key loaders to take a UI_METHOD instead of a callback
4322 function pointer. NOTE: this breaks binary compatibility with earlier
4323 versions of OpenSSL [engine].
4324 Adapt the nCipher code for these new conditions and add a card insertion
4328 *) Enhance the general user interface with mechanisms to better support
4329 dialog box interfaces, application-defined prompts, the possibility
4330 to use defaults (for example default passwords from somewhere else)
4331 and interrupts/cancellations.
4334 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4335 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4338 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4339 tidy up some unnecessarily weird code in 'sk_new()').
4340 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4342 *) Change the key loading routines for ENGINEs to use the same kind
4343 callback (pem_password_cb) as all other routines that need this
4347 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4348 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4349 than this minimum value is recommended.
4352 *) New random seeder for OpenVMS, using the system process statistics
4353 that are easily reachable.
4356 *) Windows apparently can't transparently handle global
4357 variables defined in DLLs. Initialisations such as:
4359 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4361 wont compile. This is used by the any applications that need to
4362 declare their own ASN1 modules. This was fixed by adding the option
4363 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4364 needed for static libraries under Win32.
4367 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4368 setting of purpose and trust fields. New X509_STORE trust and
4369 purpose functions and tidy up setting in other SSL functions.
4372 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4373 structure. These are inherited by X509_STORE_CTX when it is
4374 initialised. This allows various defaults to be set in the
4375 X509_STORE structure (such as flags for CRL checking and custom
4376 purpose or trust settings) for functions which only use X509_STORE_CTX
4377 internally such as S/MIME.
4379 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4380 trust settings if they are not set in X509_STORE. This allows X509_STORE
4381 purposes and trust (in S/MIME for example) to override any set by default.
4383 Add command line options for CRL checking to smime, s_client and s_server
4387 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4388 are set then the CRL is looked up in the X509_STORE structure and
4389 its validity and signature checked, then if the certificate is found
4390 in the CRL the verify fails with a revoked error.
4392 Various new CRL related callbacks added to X509_STORE_CTX structure.
4394 Command line options added to 'verify' application to support this.
4396 This needs some additional work, such as being able to handle multiple
4397 CRLs with different times, extension based lookup (rather than just
4398 by subject name) and ultimately more complete V2 CRL extension
4402 *) Add a general user interface API (crypto/ui/). This is designed
4403 to replace things like des_read_password and friends (backward
4404 compatibility functions using this new API are provided).
4405 The purpose is to remove prompting functions from the DES code
4406 section as well as provide for prompting through dialog boxes in
4407 a window system and the like.
4410 *) Add "ex_data" support to ENGINE so implementations can add state at a
4411 per-structure level rather than having to store it globally.
4414 *) Make it possible for ENGINE structures to be copied when retrieved by
4415 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4416 This causes the "original" ENGINE structure to act like a template,
4417 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4418 operational state can be localised to each ENGINE structure, despite the
4419 fact they all share the same "methods". New ENGINE structures returned in
4420 this case have no functional references and the return value is the single
4421 structural reference. This matches the single structural reference returned
4422 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4426 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4427 needs to match any other type at all we need to manually clear the
4431 *) Changes to the "openssl engine" utility to include;
4432 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4433 about an ENGINE's available control commands.
4434 - executing control commands from command line arguments using the
4435 '-pre' and '-post' switches. '-post' is only used if '-t' is
4436 specified and the ENGINE is successfully initialised. The syntax for
4437 the individual commands are colon-separated, for example;
4438 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4441 *) New dynamic control command support for ENGINEs. ENGINEs can now
4442 declare their own commands (numbers), names (strings), descriptions,
4443 and input types for run-time discovery by calling applications. A
4444 subset of these commands are implicitly classed as "executable"
4445 depending on their input type, and only these can be invoked through
4446 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4447 can be based on user input, config files, etc). The distinction is
4448 that "executable" commands cannot return anything other than a boolean
4449 result and can only support numeric or string input, whereas some
4450 discoverable commands may only be for direct use through
4451 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4452 pointers, or other custom uses. The "executable" commands are to
4453 support parameterisations of ENGINE behaviour that can be
4454 unambiguously defined by ENGINEs and used consistently across any
4455 OpenSSL-based application. Commands have been added to all the
4456 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4457 control over shared-library paths without source code alterations.
4460 *) Changed all ENGINE implementations to dynamically allocate their
4461 ENGINEs rather than declaring them statically. Apart from this being
4462 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4463 this also allows the implementations to compile without using the
4464 internal engine_int.h header.
4467 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4468 'const' value. Any code that should be able to modify a RAND_METHOD
4469 should already have non-const pointers to it (ie. they should only
4470 modify their own ones).
4473 *) Made a variety of little tweaks to the ENGINE code.
4474 - "atalla" and "ubsec" string definitions were moved from header files
4475 to C code. "nuron" string definitions were placed in variables
4476 rather than hard-coded - allowing parameterisation of these values
4477 later on via ctrl() commands.
4478 - Removed unused "#if 0"'d code.
4479 - Fixed engine list iteration code so it uses ENGINE_free() to release
4480 structural references.
4481 - Constified the RAND_METHOD element of ENGINE structures.
4482 - Constified various get/set functions as appropriate and added
4483 missing functions (including a catch-all ENGINE_cpy that duplicates
4484 all ENGINE values onto a new ENGINE except reference counts/state).
4485 - Removed NULL parameter checks in get/set functions. Setting a method
4486 or function to NULL is a way of cancelling out a previously set
4487 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4488 and doesn't justify the extra error symbols and code.
4489 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4490 flags from engine_int.h to engine.h.
4491 - Changed prototypes for ENGINE handler functions (init(), finish(),
4492 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4495 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4496 to the algorithm using long division. The binary algorithm can be
4497 used only if the modulus is odd. On 32-bit systems, it is faster
4498 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4499 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4500 up to 450 bits. In 64-bit environments, the binary algorithm
4501 appears to be advantageous for much longer moduli; here we use it
4502 for moduli up to 2048 bits.
4505 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4506 could not support the combine flag in choice fields.
4509 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4510 extensions from a certificate request to the certificate.
4513 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4514 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4515 file: this allows the display of the certificate about to be
4516 signed to be customised, to allow certain fields to be included
4517 or excluded and extension details. The old system didn't display
4518 multicharacter strings properly, omitted fields not in the policy
4519 and couldn't display additional details such as extensions.
4522 *) Function EC_POINTs_mul for multiple scalar multiplication
4523 of an arbitrary number of elliptic curve points
4524 \sum scalars[i]*points[i],
4525 optionally including the generator defined for the EC_GROUP:
4526 scalar*generator + \sum scalars[i]*points[i].
4528 EC_POINT_mul is a simple wrapper function for the typical case
4529 that the point list has just one item (besides the optional
4533 *) First EC_METHODs for curves over GF(p):
4535 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4536 operations and provides various method functions that can also
4537 operate with faster implementations of modular arithmetic.
4539 EC_GFp_mont_method() reuses most functions that are part of
4540 EC_GFp_simple_method, but uses Montgomery arithmetic.
4542 [Bodo Moeller; point addition and point doubling
4543 implementation directly derived from source code provided by
4544 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4546 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4547 crypto/ec/ec_lib.c):
4549 Curves are EC_GROUP objects (with an optional group generator)
4550 based on EC_METHODs that are built into the library.
4552 Points are EC_POINT objects based on EC_GROUP objects.
4554 Most of the framework would be able to handle curves over arbitrary
4555 finite fields, but as there are no obvious types for fields other
4556 than GF(p), some functions are limited to that for now.
4559 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4560 that the file contains a complete HTTP response.
4563 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4564 change the def and num file printf format specifier from "%-40sXXX"
4565 to "%-39s XXX". The latter will always guarantee a space after the
4566 field while the former will cause them to run together if the field
4567 is 40 of more characters long.
4570 *) Constify the cipher and digest 'method' functions and structures
4571 and modify related functions to take constant EVP_MD and EVP_CIPHER
4575 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4576 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4579 *) Modify EVP_Digest*() routines so they now return values. Although the
4580 internal software routines can never fail additional hardware versions
4584 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4586 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4587 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4590 ERR_R_NESTED_ASN1_ERROR
4592 ERR_R_MISSING_ASN1_EOS
4593 were 4 .. 9, conflicting with
4594 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4596 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4597 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4599 Add new error code 'ERR_R_INTERNAL_ERROR'.
4602 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4606 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4607 sets the subject name for a new request or supersedes the
4608 subject name in a given request. Formats that can be parsed are
4609 'CN=Some Name, OU=myOU, C=IT'
4611 'CN=Some Name/OU=myOU/C=IT'.
4613 Add options '-batch' and '-verbose' to 'openssl req'.
4614 [Massimiliano Pala <madwolf@hackmasters.net>]
4616 *) Introduce the possibility to access global variables through
4617 functions on platform were that's the best way to handle exporting
4618 global variables in shared libraries. To enable this functionality,
4619 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4620 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4621 is normally done by Configure or something similar).
4623 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4624 in the source file (foo.c) like this:
4626 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4627 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4629 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4630 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4632 OPENSSL_DECLARE_GLOBAL(int,foo);
4633 #define foo OPENSSL_GLOBAL_REF(foo)
4634 OPENSSL_DECLARE_GLOBAL(double,bar);
4635 #define bar OPENSSL_GLOBAL_REF(bar)
4637 The #defines are very important, and therefore so is including the
4638 header file everywhere where the defined globals are used.
4640 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4641 of ASN.1 items, but that structure is a bit different.
4643 The largest change is in util/mkdef.pl which has been enhanced with
4644 better and easier to understand logic to choose which symbols should
4645 go into the Windows .def files as well as a number of fixes and code
4646 cleanup (among others, algorithm keywords are now sorted
4647 lexicographically to avoid constant rewrites).
4650 *) In BN_div() keep a copy of the sign of 'num' before writing the
4651 result to 'rm' because if rm==num the value will be overwritten
4652 and produce the wrong result if 'num' is negative: this caused
4653 problems with BN_mod() and BN_nnmod().
4656 *) Function OCSP_request_verify(). This checks the signature on an
4657 OCSP request and verifies the signer certificate. The signer
4658 certificate is just checked for a generic purpose and OCSP request
4662 *) Add OCSP_check_validity() function to check the validity of OCSP
4663 responses. OCSP responses are prepared in real time and may only
4664 be a few seconds old. Simply checking that the current time lies
4665 between thisUpdate and nextUpdate max reject otherwise valid responses
4666 caused by either OCSP responder or client clock inaccuracy. Instead
4667 we allow thisUpdate and nextUpdate to fall within a certain period of
4668 the current time. The age of the response can also optionally be
4669 checked. Two new options -validity_period and -status_age added to
4673 *) If signature or public key algorithm is unrecognized print out its
4674 OID rather that just UNKNOWN.
4677 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4678 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4679 ID to be generated from the issuer certificate alone which can then be
4680 passed to OCSP_id_issuer_cmp().
4683 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4684 ASN1 modules to export functions returning ASN1_ITEM pointers
4685 instead of the ASN1_ITEM structures themselves. This adds several
4686 new macros which allow the underlying ASN1 function/structure to
4687 be accessed transparently. As a result code should not use ASN1_ITEM
4688 references directly (such as &X509_it) but instead use the relevant
4689 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4690 use of the new ASN1 code on platforms where exporting structures
4691 is problematical (for example in shared libraries) but exporting
4692 functions returning pointers to structures is not.
4695 *) Add support for overriding the generation of SSL/TLS session IDs.
4696 These callbacks can be registered either in an SSL_CTX or per SSL.
4697 The purpose of this is to allow applications to control, if they wish,
4698 the arbitrary values chosen for use as session IDs, particularly as it
4699 can be useful for session caching in multiple-server environments. A
4700 command-line switch for testing this (and any client code that wishes
4701 to use such a feature) has been added to "s_server".
4702 [Geoff Thorpe, Lutz Jaenicke]
4704 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4705 of the form '#if defined(...) || defined(...) || ...' and
4706 '#if !defined(...) && !defined(...) && ...'. This also avoids
4707 the growing number of special cases it was previously handling.
4710 *) Make all configuration macros available for application by making
4711 sure they are available in opensslconf.h, by giving them names starting
4712 with "OPENSSL_" to avoid conflicts with other packages and by making
4713 sure e_os2.h will cover all platform-specific cases together with
4715 Additionally, it is now possible to define configuration/platform-
4716 specific names (called "system identities"). In the C code, these
4717 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4718 macro with the name beginning with "OPENSSL_SYS_", which is determined
4719 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4723 *) New option -set_serial to 'req' and 'x509' this allows the serial
4724 number to use to be specified on the command line. Previously self
4725 signed certificates were hard coded with serial number 0 and the
4726 CA options of 'x509' had to use a serial number in a file which was
4730 *) New options to 'ca' utility to support V2 CRL entry extensions.
4731 Currently CRL reason, invalidity date and hold instruction are
4732 supported. Add new CRL extensions to V3 code and some new objects.
4735 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4736 disable standard block padding (aka PKCS#5 padding) in the EVP
4737 API, which was previously mandatory. This means that the data is
4738 not padded in any way and so the total length much be a multiple
4739 of the block size, otherwise an error occurs.
4742 *) Initial (incomplete) OCSP SSL support.
4745 *) New function OCSP_parse_url(). This splits up a URL into its host,
4746 port and path components: primarily to parse OCSP URLs. New -url
4747 option to ocsp utility.
4750 *) New nonce behavior. The return value of OCSP_check_nonce() now
4751 reflects the various checks performed. Applications can decide
4752 whether to tolerate certain situations such as an absent nonce
4753 in a response when one was present in a request: the ocsp application
4754 just prints out a warning. New function OCSP_add1_basic_nonce()
4755 this is to allow responders to include a nonce in a response even if
4756 the request is nonce-less.
4759 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4760 skipped when using openssl x509 multiple times on a single input file,
4761 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4764 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4765 set string type: to handle setting ASN1_TIME structures. Fix ca
4766 utility to correctly initialize revocation date of CRLs.
4769 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4770 the clients preferred ciphersuites and rather use its own preferences.
4771 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4772 Internet Explorer by ensuring unchanged hash method during stepup.
4773 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4776 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4777 to aes and add a new 'exist' option to print out symbols that don't
4781 *) Additional options to ocsp utility to allow flags to be set and
4782 additional certificates supplied.
4785 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4786 OCSP client a number of certificate to only verify the response
4790 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4791 handle the new API. Currently only ECB, CBC modes supported. Add new
4794 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4795 Encryption Standard (AES) Ciphersuites for Transport Layer
4796 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4797 not enabled by default and were not part of the "ALL" ciphersuite
4798 alias because they were not yet official; they could be
4799 explicitly requested by specifying the "AESdraft" ciphersuite
4800 group alias. In the final release of OpenSSL 0.9.7, the group
4801 alias is called "AES" and is part of "ALL".)
4802 [Ben Laurie, Steve Henson, Bodo Moeller]
4804 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4805 request to response.
4808 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4809 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4810 extract information from a certificate request. OCSP_response_create()
4811 creates a response and optionally adds a basic response structure.
4812 OCSP_basic_add1_status() adds a complete single response to a basic
4813 response and returns the OCSP_SINGLERESP structure just added (to allow
4814 extensions to be included for example). OCSP_basic_add1_cert() adds a
4815 certificate to a basic response and OCSP_basic_sign() signs a basic
4816 response with various flags. New helper functions ASN1_TIME_check()
4817 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4818 (converts ASN1_TIME to GeneralizedTime).
4821 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4822 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4823 structure from a certificate. X509_pubkey_digest() digests the public_key
4824 contents: this is used in various key identifiers.
4827 *) Make sk_sort() tolerate a NULL argument.
4828 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4830 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4831 passed by the function are trusted implicitly. If any of them signed the
4832 response then it is assumed to be valid and is not verified.
4835 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4836 to data. This was previously part of the PKCS7 ASN1 code. This
4837 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4838 [Steve Henson, reported by Kenneth R. Robinette
4839 <support@securenetterm.com>]
4841 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4842 routines: without these tracing memory leaks is very painful.
4843 Fix leaks in PKCS12 and PKCS7 routines.
4846 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4847 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4848 effectively meant GeneralizedTime would never be used. Now it
4849 is initialised to -1 but X509_time_adj() now has to check the value
4850 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4851 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4852 [Steve Henson, reported by Kenneth R. Robinette
4853 <support@securenetterm.com>]
4855 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4856 result in a zero length in the ASN1_INTEGER structure which was
4857 not consistent with the structure when d2i_ASN1_INTEGER() was used
4858 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4859 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4860 where it did not print out a minus for negative ASN1_INTEGER.
4863 *) Add summary printout to ocsp utility. The various functions which
4864 convert status values to strings have been renamed to:
4865 OCSP_response_status_str(), OCSP_cert_status_str() and
4866 OCSP_crl_reason_str() and are no longer static. New options
4867 to verify nonce values and to disable verification. OCSP response
4868 printout format cleaned up.
4871 *) Add additional OCSP certificate checks. These are those specified
4872 in RFC2560. This consists of two separate checks: the CA of the
4873 certificate being checked must either be the OCSP signer certificate
4874 or the issuer of the OCSP signer certificate. In the latter case the
4875 OCSP signer certificate must contain the OCSP signing extended key
4876 usage. This check is performed by attempting to match the OCSP
4877 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4878 in the OCSP_CERTID structures of the response.
4881 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4882 and related routines. This uses the standard OpenSSL certificate
4883 verify routines to perform initial checks (just CA validity) and
4884 to obtain the certificate chain. Then additional checks will be
4885 performed on the chain. Currently the root CA is checked to see
4886 if it is explicitly trusted for OCSP signing. This is used to set
4887 a root CA as a global signing root: that is any certificate that
4888 chains to that CA is an acceptable OCSP signing certificate.
4891 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4892 extensions from a separate configuration file.
4893 As when reading extensions from the main configuration file,
4894 the '-extensions ...' option may be used for specifying the
4896 [Massimiliano Pala <madwolf@comune.modena.it>]
4898 *) New OCSP utility. Allows OCSP requests to be generated or
4899 read. The request can be sent to a responder and the output
4900 parsed, outputed or printed in text form. Not complete yet:
4901 still needs to check the OCSP response validity.
4904 *) New subcommands for 'openssl ca':
4905 'openssl ca -status <serial>' prints the status of the cert with
4906 the given serial number (according to the index file).
4907 'openssl ca -updatedb' updates the expiry status of certificates
4909 [Massimiliano Pala <madwolf@comune.modena.it>]
4911 *) New '-newreq-nodes' command option to CA.pl. This is like
4912 '-newreq', but calls 'openssl req' with the '-nodes' option
4913 so that the resulting key is not encrypted.
4914 [Damien Miller <djm@mindrot.org>]
4916 *) New configuration for the GNU Hurd.
4917 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4919 *) Initial code to implement OCSP basic response verify. This
4920 is currently incomplete. Currently just finds the signer's
4921 certificate and verifies the signature on the response.
4924 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4925 value of OPENSSLDIR. This is available via the new '-d' option
4926 to 'openssl version', and is also included in 'openssl version -a'.
4929 *) Allowing defining memory allocation callbacks that will be given
4930 file name and line number information in additional arguments
4931 (a const char* and an int). The basic functionality remains, as
4932 well as the original possibility to just replace malloc(),
4933 realloc() and free() by functions that do not know about these
4934 additional arguments. To register and find out the current
4935 settings for extended allocation functions, the following
4936 functions are provided:
4938 CRYPTO_set_mem_ex_functions
4939 CRYPTO_set_locked_mem_ex_functions
4940 CRYPTO_get_mem_ex_functions
4941 CRYPTO_get_locked_mem_ex_functions
4943 These work the same way as CRYPTO_set_mem_functions and friends.
4944 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4945 extended allocation function is enabled.
4946 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4947 a conventional allocation function is enabled.
4948 [Richard Levitte, Bodo Moeller]
4950 *) Finish off removing the remaining LHASH function pointer casts.
4951 There should no longer be any prototype-casting required when using
4952 the LHASH abstraction, and any casts that remain are "bugs". See
4953 the callback types and macros at the head of lhash.h for details
4954 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4957 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4958 If /dev/[u]random devices are not available or do not return enough
4959 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4961 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4962 /etc/entropy will be queried once each in this sequence, quering stops
4963 when enough entropy was collected without querying more sockets.
4966 *) Change the Unix RAND_poll() variant to be able to poll several
4967 random devices, as specified by DEVRANDOM, until a sufficient amount
4968 of data has been collected. We spend at most 10 ms on each file
4969 (select timeout) and read in non-blocking mode. DEVRANDOM now
4970 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4971 (previously it was just the string "/dev/urandom"), so on typical
4972 platforms the 10 ms delay will never occur.
4973 Also separate out the Unix variant to its own file, rand_unix.c.
4974 For VMS, there's a currently-empty rand_vms.c.
4977 *) Move OCSP client related routines to ocsp_cl.c. These
4978 provide utility functions which an application needing
4979 to issue a request to an OCSP responder and analyse the
4980 response will typically need: as opposed to those which an
4981 OCSP responder itself would need which will be added later.
4983 OCSP_request_sign() signs an OCSP request with an API similar
4984 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4985 response. OCSP_response_get1_basic() extracts basic response
4986 from response. OCSP_resp_find_status(): finds and extracts status
4987 information from an OCSP_CERTID structure (which will be created
4988 when the request structure is built). These are built from lower
4989 level functions which work on OCSP_SINGLERESP structures but
4990 wont normally be used unless the application wishes to examine
4991 extensions in the OCSP response for example.
4993 Replace nonce routines with a pair of functions.
4994 OCSP_request_add1_nonce() adds a nonce value and optionally
4995 generates a random value. OCSP_check_nonce() checks the
4996 validity of the nonce in an OCSP response.
4999 *) Change function OCSP_request_add() to OCSP_request_add0_id().
5000 This doesn't copy the supplied OCSP_CERTID and avoids the
5001 need to free up the newly created id. Change return type
5002 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
5003 This can then be used to add extensions to the request.
5004 Deleted OCSP_request_new(), since most of its functionality
5005 is now in OCSP_REQUEST_new() (and the case insensitive name
5006 clash) apart from the ability to set the request name which
5007 will be added elsewhere.
5010 *) Update OCSP API. Remove obsolete extensions argument from
5011 various functions. Extensions are now handled using the new
5012 OCSP extension code. New simple OCSP HTTP function which
5013 can be used to send requests and parse the response.
5016 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
5017 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
5018 uses the special reorder version of SET OF to sort the attributes
5019 and reorder them to match the encoded order. This resolves a long
5020 standing problem: a verify on a PKCS7 structure just after signing
5021 it used to fail because the attribute order did not match the
5022 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
5023 it uses the received order. This is necessary to tolerate some broken
5024 software that does not order SET OF. This is handled by encoding
5025 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
5026 to produce the required SET OF.
5029 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
5030 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
5031 files to get correct declarations of the ASN.1 item variables.
5034 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
5035 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
5036 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
5037 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
5038 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
5039 ASN1_ITEM and no wrapper functions.
5042 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
5043 replace the old function pointer based I/O routines. Change most of
5044 the *_d2i_bio() and *_d2i_fp() functions to use these.
5047 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
5048 lines, recognice more "algorithms" that can be deselected, and make
5049 it complain about algorithm deselection that isn't recognised.
5052 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
5053 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
5054 to use new functions. Add NO_ASN1_OLD which can be set to remove
5055 some old style ASN1 functions: this can be used to determine if old
5056 code will still work when these eventually go away.
5059 *) New extension functions for OCSP structures, these follow the
5060 same conventions as certificates and CRLs.
5063 *) New function X509V3_add1_i2d(). This automatically encodes and
5064 adds an extension. Its behaviour can be customised with various
5065 flags to append, replace or delete. Various wrappers added for
5066 certifcates and CRLs.
5069 *) Fix to avoid calling the underlying ASN1 print routine when
5070 an extension cannot be parsed. Correct a typo in the
5071 OCSP_SERVICELOC extension. Tidy up print OCSP format.
5074 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
5075 entries for variables.
5078 *) Add functionality to apps/openssl.c for detecting locking
5079 problems: As the program is single-threaded, all we have
5080 to do is register a locking callback using an array for
5081 storing which locks are currently held by the program.
5084 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
5085 SSL_get_ex_data_X509_STORE_idx(), which is used in
5086 ssl_verify_cert_chain() and thus can be called at any time
5087 during TLS/SSL handshakes so that thread-safety is essential.
5088 Unfortunately, the ex_data design is not at all suited
5089 for multi-threaded use, so it probably should be abolished.
5092 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
5093 [Broadcom, tweaked and integrated by Geoff Thorpe]
5095 *) Move common extension printing code to new function
5096 X509V3_print_extensions(). Reorganise OCSP print routines and
5097 implement some needed OCSP ASN1 functions. Add OCSP extensions.
5100 *) New function X509_signature_print() to remove duplication in some
5104 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
5105 set (this was treated exactly the same as SET OF previously). This
5106 is used to reorder the STACK representing the structure to match the
5107 encoding. This will be used to get round a problem where a PKCS7
5108 structure which was signed could not be verified because the STACK
5109 order did not reflect the encoded order.
5112 *) Reimplement the OCSP ASN1 module using the new code.
5115 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
5116 for its ASN1 operations. The old style function pointers still exist
5117 for now but they will eventually go away.
5120 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
5121 completely replaces the old ASN1 functionality with a table driven
5122 encoder and decoder which interprets an ASN1_ITEM structure describing
5123 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5124 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5125 has also been converted to the new form.
5128 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5129 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5130 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5131 for negative moduli.
5134 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5135 of not touching the result's sign bit.
5138 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5142 *) Changed the LHASH code to use prototypes for callbacks, and created
5143 macros to declare and implement thin (optionally static) functions
5144 that provide type-safety and avoid function pointer casting for the
5145 type-specific callbacks.
5148 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5150 [Veers Staats <staatsvr@asc.hpc.mil>,
5151 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5153 *) Reformat the FAQ so the different questions and answers can be divided
5154 in sections depending on the subject.
5157 *) Have the zlib compression code load ZLIB.DLL dynamically under
5161 *) New function BN_mod_sqrt for computing square roots modulo a prime
5162 (using the probabilistic Tonelli-Shanks algorithm unless
5163 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5164 be handled deterministically).
5165 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5167 *) Make BN_mod_inverse faster by explicitly handling small quotients
5168 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5169 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5172 *) New function BN_kronecker.
5175 *) Fix BN_gcd so that it works on negative inputs; the result is
5176 positive unless both parameters are zero.
5177 Previously something reasonably close to an infinite loop was
5178 possible because numbers could be growing instead of shrinking
5179 in the implementation of Euclid's algorithm.
5182 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5183 sign of the number in question.
5185 Fix BN_is_word(a,w) to work correctly for w == 0.
5187 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5188 because its test if the absolute value of 'a' equals 'w'.
5189 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5190 it exists mostly for use in the implementations of BN_is_zero(),
5191 BN_is_one(), and BN_is_word().
5194 *) New function BN_swap.
5197 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5198 the exponentiation functions are more likely to produce reasonable
5199 results on negative inputs.
5202 *) Change BN_mod_mul so that the result is always non-negative.
5203 Previously, it could be negative if one of the factors was negative;
5204 I don't think anyone really wanted that behaviour.
5207 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5208 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5209 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5210 and add new functions:
5219 BN_mod_lshift1_quick
5223 These functions always generate non-negative results.
5225 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5226 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5228 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5229 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5230 be reduced modulo m.
5231 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5234 The following entry accidentily appeared in the CHANGES file
5235 distributed with OpenSSL 0.9.7. The modifications described in
5236 it do *not* apply to OpenSSL 0.9.7.
5238 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5239 was actually never needed) and in BN_mul(). The removal in BN_mul()
5240 required a small change in bn_mul_part_recursive() and the addition
5241 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5242 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5243 bn_sub_words() and bn_add_words() except they take arrays with
5248 *) In 'openssl passwd', verify passwords read from the terminal
5249 unless the '-salt' option is used (which usually means that
5250 verification would just waste user's time since the resulting
5251 hash is going to be compared with some given password hash)
5252 or the new '-noverify' option is used.
5254 This is an incompatible change, but it does not affect
5255 non-interactive use of 'openssl passwd' (passwords on the command
5256 line, '-stdin' option, '-in ...' option) and thus should not
5260 *) Remove all references to RSAref, since there's no more need for it.
5263 *) Make DSO load along a path given through an environment variable
5264 (SHLIB_PATH) with shl_load().
5267 *) Constify the ENGINE code as a result of BIGNUM constification.
5268 Also constify the RSA code and most things related to it. In a
5269 few places, most notable in the depth of the ASN.1 code, ugly
5270 casts back to non-const were required (to be solved at a later
5274 *) Make it so the openssl application has all engines loaded by default.
5277 *) Constify the BIGNUM routines a little more.
5280 *) Add the following functions:
5282 ENGINE_load_cswift()
5284 ENGINE_load_atalla()
5286 ENGINE_load_builtin_engines()
5288 That way, an application can itself choose if external engines that
5289 are built-in in OpenSSL shall ever be used or not. The benefit is
5290 that applications won't have to be linked with libdl or other dso
5291 libraries unless it's really needed.
5293 Changed 'openssl engine' to load all engines on demand.
5294 Changed the engine header files to avoid the duplication of some
5295 declarations (they differed!).
5298 *) 'openssl engine' can now list capabilities.
5301 *) Better error reporting in 'openssl engine'.
5304 *) Never call load_dh_param(NULL) in s_server.
5307 *) Add engine application. It can currently list engines by name and
5308 identity, and test if they are actually available.
5311 *) Improve RPM specification file by forcing symbolic linking and making
5312 sure the installed documentation is also owned by root.root.
5313 [Damien Miller <djm@mindrot.org>]
5315 *) Give the OpenSSL applications more possibilities to make use of
5316 keys (public as well as private) handled by engines.
5319 *) Add OCSP code that comes from CertCo.
5322 *) Add VMS support for the Rijndael code.
5325 *) Added untested support for Nuron crypto accelerator.
5328 *) Add support for external cryptographic devices. This code was
5329 previously distributed separately as the "engine" branch.
5330 [Geoff Thorpe, Richard Levitte]
5332 *) Rework the filename-translation in the DSO code. It is now possible to
5333 have far greater control over how a "name" is turned into a filename
5334 depending on the operating environment and any oddities about the
5335 different shared library filenames on each system.
5338 *) Support threads on FreeBSD-elf in Configure.
5341 *) Fix for SHA1 assembly problem with MASM: it produces
5342 warnings about corrupt line number information when assembling
5343 with debugging information. This is caused by the overlapping
5345 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5348 NCONF_get_number() has no error checking at all. As a replacement,
5349 NCONF_get_number_e() is defined (_e for "error checking") and is
5350 promoted strongly. The old NCONF_get_number is kept around for
5351 binary backward compatibility.
5352 Make it possible for methods to load from something other than a BIO,
5353 by providing a function pointer that is given a name instead of a BIO.
5354 For example, this could be used to load configuration data from an
5358 *) Fix for non blocking accept BIOs. Added new I/O special reason
5359 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5360 with non blocking I/O was not possible because no retry code was
5361 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5365 *) Added the beginnings of Rijndael support.
5368 *) Fix for bug in DirectoryString mask setting. Add support for
5369 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5370 to allow certificate printing to more controllable, additional
5371 'certopt' option to 'x509' to allow new printing options to be
5375 *) Clean old EAY MD5 hack from e_os.h.
5378 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5380 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5381 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5382 [Joe Orton, Steve Henson]
5384 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5386 *) Fix additional bug revealed by the NISCC test suite:
5388 Stop bug triggering large recursion when presented with
5389 certain ASN.1 tags (CVE-2003-0851)
5392 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5394 *) Fix various bugs revealed by running the NISCC test suite:
5396 Stop out of bounds reads in the ASN1 code when presented with
5397 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5399 If verify callback ignores invalid public key errors don't try to check
5400 certificate signature with the NULL public key.
5404 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5405 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5409 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5410 extra data after the compression methods not only for TLS 1.0
5411 but also for SSL 3.0 (as required by the specification).
5412 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5414 *) Change X509_certificate_type() to mark the key as exported/exportable
5415 when it's 512 *bits* long, not 512 bytes.
5418 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5420 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5421 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5422 a protocol version number mismatch like a decryption error
5423 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5426 *) Turn on RSA blinding by default in the default implementation
5427 to avoid a timing attack. Applications that don't want it can call
5428 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5429 They would be ill-advised to do so in most cases.
5430 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5432 *) Change RSA blinding code so that it works when the PRNG is not
5433 seeded (in this case, the secret RSA exponent is abused as
5434 an unpredictable seed -- if it is not unpredictable, there
5435 is no point in blinding anyway). Make RSA blinding thread-safe
5436 by remembering the creator's thread ID in rsa->blinding and
5437 having all other threads use local one-time blinding factors
5438 (this requires more computation than sharing rsa->blinding, but
5439 avoids excessive locking; and if an RSA object is not shared
5440 between threads, blinding will still be very fast).
5443 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5445 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5446 via timing by performing a MAC computation even if incorrrect
5447 block cipher padding has been found. This is a countermeasure
5448 against active attacks where the attacker has to distinguish
5449 between bad padding and a MAC verification error. (CVE-2003-0078)
5451 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5452 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5453 Martin Vuagnoux (EPFL, Ilion)]
5455 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5457 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5458 memory from it's contents. This is done with a counter that will
5459 place alternating values in each byte. This can be used to solve
5460 two issues: 1) the removal of calls to memset() by highly optimizing
5461 compilers, and 2) cleansing with other values than 0, since those can
5462 be read through on certain media, for example a swap space on disk.
5465 *) Bugfix: client side session caching did not work with external caching,
5466 because the session->cipher setting was not restored when reloading
5467 from the external cache. This problem was masked, when
5468 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5469 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5472 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5473 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5474 [Zeev Lieber <zeev-l@yahoo.com>]
5476 *) Undo an undocumented change introduced in 0.9.6e which caused
5477 repeated calls to OpenSSL_add_all_ciphers() and
5478 OpenSSL_add_all_digests() to be ignored, even after calling
5482 *) Change the default configuration reader to deal with last line not
5483 being properly terminated.
5486 *) Change X509_NAME_cmp() so it applies the special rules on handling
5487 DN values that are of type PrintableString, as well as RDNs of type
5488 emailAddress where the value has the type ia5String.
5489 [stefank@valicert.com via Richard Levitte]
5491 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5492 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5493 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5494 the bitwise-OR of the two for use by the majority of applications
5495 wanting this behaviour, and update the docs. The documented
5496 behaviour and actual behaviour were inconsistent and had been
5497 changing anyway, so this is more a bug-fix than a behavioural
5499 [Geoff Thorpe, diagnosed by Nadav Har'El]
5501 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5502 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5505 *) Fix initialization code race conditions in
5506 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5507 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5508 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5509 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5510 ssl2_get_cipher_by_char(),
5511 ssl3_get_cipher_by_char().
5512 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5514 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5515 the cached sessions are flushed, as the remove_cb() might use ex_data
5516 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5517 (see [openssl.org #212]).
5518 [Geoff Thorpe, Lutz Jaenicke]
5520 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5521 length, instead of the encoding length to d2i_ASN1_OBJECT.
5524 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5526 *) [In 0.9.6g-engine release:]
5527 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5528 [Lynn Gazis <lgazis@rainbow.com>]
5530 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5532 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5533 and get fix the header length calculation.
5534 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5535 Alon Kantor <alonk@checkpoint.com> (and others),
5538 *) Use proper error handling instead of 'assertions' in buffer
5539 overflow checks added in 0.9.6e. This prevents DoS (the
5540 assertions could call abort()).
5541 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5543 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5545 *) Add various sanity checks to asn1_get_length() to reject
5546 the ASN1 length bytes if they exceed sizeof(long), will appear
5547 negative or the content length exceeds the length of the
5549 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5551 *) Fix cipher selection routines: ciphers without encryption had no flags
5552 for the cipher strength set and where therefore not handled correctly
5553 by the selection routines (PR #130).
5556 *) Fix EVP_dsa_sha macro.
5560 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5561 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5562 that was added in OpenSSL 0.9.6d.
5564 As the countermeasure turned out to be incompatible with some
5565 broken SSL implementations, the new option is part of SSL_OP_ALL.
5566 SSL_OP_ALL is usually employed when compatibility with weird SSL
5567 implementations is desired (e.g. '-bugs' option to 's_client' and
5568 's_server'), so the new option is automatically set in many
5572 *) Changes in security patch:
5574 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5575 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5576 Air Force Materiel Command, USAF, under agreement number
5579 *) Add various sanity checks to asn1_get_length() to reject
5580 the ASN1 length bytes if they exceed sizeof(long), will appear
5581 negative or the content length exceeds the length of the
5582 supplied buffer. (CVE-2002-0659)
5583 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5585 *) Assertions for various potential buffer overflows, not known to
5587 [Ben Laurie (CHATS)]
5589 *) Various temporary buffers to hold ASCII versions of integers were
5590 too small for 64 bit platforms. (CVE-2002-0655)
5591 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5593 *) Remote buffer overflow in SSL3 protocol - an attacker could
5594 supply an oversized session ID to a client. (CVE-2002-0656)
5595 [Ben Laurie (CHATS)]
5597 *) Remote buffer overflow in SSL2 protocol - an attacker could
5598 supply an oversized client master key. (CVE-2002-0656)
5599 [Ben Laurie (CHATS)]
5601 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5603 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5604 encoded as NULL) with id-dsa-with-sha1.
5605 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5607 *) Check various X509_...() return values in apps/req.c.
5608 [Nils Larsch <nla@trustcenter.de>]
5610 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5611 an end-of-file condition would erronously be flagged, when the CRLF
5612 was just at the end of a processed block. The bug was discovered when
5613 processing data through a buffering memory BIO handing the data to a
5614 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5615 <ptsekov@syntrex.com> and Nedelcho Stanev.
5618 *) Implement a countermeasure against a vulnerability recently found
5619 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5620 before application data chunks to avoid the use of known IVs
5621 with data potentially chosen by the attacker.
5624 *) Fix length checks in ssl3_get_client_hello().
5627 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5628 to prevent ssl3_read_internal() from incorrectly assuming that
5629 ssl3_read_bytes() found application data while handshake
5630 processing was enabled when in fact s->s3->in_read_app_data was
5631 merely automatically cleared during the initial handshake.
5632 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5634 *) Fix object definitions for Private and Enterprise: they were not
5635 recognized in their shortname (=lowercase) representation. Extend
5636 obj_dat.pl to issue an error when using undefined keywords instead
5637 of silently ignoring the problem (Svenning Sorensen
5638 <sss@sss.dnsalias.net>).
5641 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5642 generators, i.e. generators other than 2 and 5. (Previously, the
5643 code did not properly initialise the 'add' and 'rem' values to
5644 BN_generate_prime().)
5646 In the new general case, we do not insist that 'generator' is
5647 actually a primitive root: This requirement is rather pointless;
5648 a generator of the order-q subgroup is just as good, if not
5652 *) Map new X509 verification errors to alerts. Discovered and submitted by
5653 Tom Wu <tom@arcot.com>.
5656 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5657 returning non-zero before the data has been completely received
5658 when using non-blocking I/O.
5659 [Bodo Moeller; problem pointed out by John Hughes]
5661 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5662 [Ben Laurie, Lutz Jaenicke]
5664 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5665 Yoram Zahavi <YoramZ@gilian.com>).
5668 *) Add information about CygWin 1.3 and on, and preserve proper
5669 configuration for the versions before that.
5670 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5672 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5673 check whether we deal with a copy of a session and do not delete from
5674 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5675 <izhar@checkpoint.com>.
5678 *) Do not store session data into the internal session cache, if it
5679 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5680 flag is set). Proposed by Aslam <aslam@funk.com>.
5683 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5687 *) [In 0.9.6d-engine release:]
5688 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5689 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5691 *) Add the configuration target linux-s390x.
5692 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5694 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5695 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5696 variable as an indication that a ClientHello message has been
5697 received. As the flag value will be lost between multiple
5698 invocations of ssl3_accept when using non-blocking I/O, the
5699 function may not be aware that a handshake has actually taken
5700 place, thus preventing a new session from being added to the
5703 To avoid this problem, we now set s->new_session to 2 instead of
5704 using a local variable.
5705 [Lutz Jaenicke, Bodo Moeller]
5707 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5708 if the SSL_R_LENGTH_MISMATCH error is detected.
5709 [Geoff Thorpe, Bodo Moeller]
5711 *) New 'shared_ldflag' column in Configure platform table.
5714 *) Fix EVP_CIPHER_mode macro.
5715 ["Dan S. Camper" <dan@bti.net>]
5717 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5718 type, we must throw them away by setting rr->length to 0.
5719 [D P Chang <dpc@qualys.com>]
5721 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5723 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5724 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5725 worked incorrectly for those cases where range = 10..._2 and
5726 3*range is two bits longer than range.)
5729 *) Only add signing time to PKCS7 structures if it is not already
5733 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5734 OBJ_ld_ce should be OBJ_id_ce.
5735 Also some ip-pda OIDs in crypto/objects/objects.txt were
5736 incorrect (cf. RFC 3039).
5737 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5739 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5740 returns early because it has nothing to do.
5741 [Andy Schneider <andy.schneider@bjss.co.uk>]
5743 *) [In 0.9.6c-engine release:]
5744 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5745 [Andy Schneider <andy.schneider@bjss.co.uk>]
5747 *) [In 0.9.6c-engine release:]
5748 Add support for Cryptographic Appliance's keyserver technology.
5749 (Use engine 'keyclient')
5750 [Cryptographic Appliances and Geoff Thorpe]
5752 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5753 is called via tools/c89.sh because arguments have to be
5754 rearranged (all '-L' options must appear before the first object
5756 [Richard Shapiro <rshapiro@abinitio.com>]
5758 *) [In 0.9.6c-engine release:]
5759 Add support for Broadcom crypto accelerator cards, backported
5761 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5763 *) [In 0.9.6c-engine release:]
5764 Add support for SureWare crypto accelerator cards from
5765 Baltimore Technologies. (Use engine 'sureware')
5766 [Baltimore Technologies and Mark Cox]
5768 *) [In 0.9.6c-engine release:]
5769 Add support for crypto accelerator cards from Accelerated
5770 Encryption Processing, www.aep.ie. (Use engine 'aep')
5771 [AEP Inc. and Mark Cox]
5773 *) Add a configuration entry for gcc on UnixWare.
5774 [Gary Benson <gbenson@redhat.com>]
5776 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5777 messages are stored in a single piece (fixed-length part and
5778 variable-length part combined) and fix various bugs found on the way.
5781 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5782 instead. BIO_gethostbyname() does not know what timeouts are
5783 appropriate, so entries would stay in cache even when they have
5785 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5787 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5788 faced with a pathologically small ClientHello fragment that does
5789 not contain client_version: Instead of aborting with an error,
5790 simply choose the highest available protocol version (i.e.,
5791 TLS 1.0 unless it is disabled). In practice, ClientHello
5792 messages are never sent like this, but this change gives us
5793 strictly correct behaviour at least for TLS.
5796 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5797 never resets s->method to s->ctx->method when called from within
5798 one of the SSL handshake functions.
5799 [Bodo Moeller; problem pointed out by Niko Baric]
5801 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5802 (sent using the client's version number) if client_version is
5803 smaller than the protocol version in use. Also change
5804 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5805 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5806 the client will at least see that alert.
5809 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5813 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5814 client receives HelloRequest while in a handshake.
5815 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5817 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5818 should end in 'break', not 'goto end' which circuments various
5819 cleanups done in state SSL_ST_OK. But session related stuff
5820 must be disabled for SSL_ST_OK in the case that we just sent a
5823 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5824 before just sending a HelloRequest.
5825 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5827 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5828 reveal whether illegal block cipher padding was found or a MAC
5829 verification error occured. (Neither SSLerr() codes nor alerts
5830 are directly visible to potential attackers, but the information
5831 may leak via logfiles.)
5833 Similar changes are not required for the SSL 2.0 implementation
5834 because the number of padding bytes is sent in clear for SSL 2.0,
5835 and the extra bytes are just ignored. However ssl/s2_pkt.c
5836 failed to verify that the purported number of padding bytes is in
5840 *) Add OpenUNIX-8 support including shared libraries
5841 (Boyd Lynn Gerber <gerberb@zenez.com>).
5844 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5845 'wristwatch attack' using huge encoding parameters (cf.
5846 James H. Manger's CRYPTO 2001 paper). Note that the
5847 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5848 encoding parameters and hence was not vulnerable.
5851 *) BN_sqr() bug fix.
5852 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5854 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5855 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5856 followed by modular reduction.
5857 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5859 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5860 equivalent based on BN_pseudo_rand() instead of BN_rand().
5863 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5864 This function was broken, as the check for a new client hello message
5865 to handle SGC did not allow these large messages.
5866 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5869 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5872 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5873 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5876 *) Rework the configuration and shared library support for Tru64 Unix.
5877 The configuration part makes use of modern compiler features and
5878 still retains old compiler behavior for those that run older versions
5879 of the OS. The shared library support part includes a variant that
5880 uses the RPATH feature, and is available through the special
5881 configuration target "alpha-cc-rpath", which will never be selected
5883 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5885 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5886 with the same message size as in ssl3_get_certificate_request().
5887 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5888 messages might inadvertently be reject as too long.
5889 [Petr Lampa <lampa@fee.vutbr.cz>]
5891 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5894 *) Modified SSL library such that the verify_callback that has been set
5895 specificly for an SSL object with SSL_set_verify() is actually being
5896 used. Before the change, a verify_callback set with this function was
5897 ignored and the verify_callback() set in the SSL_CTX at the time of
5898 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5899 to allow the necessary settings.
5902 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5903 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5904 done automatically (in contradiction to the requirements of the C
5905 standard). This made problems when used from OpenSSH.
5908 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5909 dh->length and always used
5911 BN_rand_range(priv_key, dh->p).
5913 BN_rand_range() is not necessary for Diffie-Hellman, and this
5914 specific range makes Diffie-Hellman unnecessarily inefficient if
5915 dh->length (recommended exponent length) is much smaller than the
5916 length of dh->p. We could use BN_rand_range() if the order of
5917 the subgroup was stored in the DH structure, but we only have
5922 BN_rand(priv_key, l, ...)
5924 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5930 RSA_eay_public_encrypt
5931 RSA_eay_private_decrypt
5932 RSA_eay_private_encrypt (signing)
5933 RSA_eay_public_decrypt (signature verification)
5935 (default implementations for RSA_public_encrypt,
5936 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5937 always reject numbers >= n.
5940 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5941 to synchronize access to 'locking_thread'. This is necessary on
5942 systems where access to 'locking_thread' (an 'unsigned long'
5943 variable) is not atomic.
5946 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5947 *before* setting the 'crypto_lock_rand' flag. The previous code had
5948 a race condition if 0 is a valid thread ID.
5949 [Travis Vitek <vitek@roguewave.com>]
5951 *) Add support for shared libraries under Irix.
5952 [Albert Chin-A-Young <china@thewrittenword.com>]
5954 *) Add configuration option to build on Linux on both big-endian and
5956 [Ralf Baechle <ralf@uni-koblenz.de>]
5958 *) Add the possibility to create shared libraries on HP-UX.
5961 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5963 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5964 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5965 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5966 PRNG state recovery was possible based on the output of
5967 one PRNG request appropriately sized to gain knowledge on
5968 'md' followed by enough consecutive 1-byte PRNG requests
5969 to traverse all of 'state'.
5971 1. When updating 'md_local' (the current thread's copy of 'md')
5972 during PRNG output generation, hash all of the previous
5973 'md_local' value, not just the half used for PRNG output.
5975 2. Make the number of bytes from 'state' included into the hash
5976 independent from the number of PRNG bytes requested.
5978 The first measure alone would be sufficient to avoid
5979 Markku-Juhani's attack. (Actually it had never occurred
5980 to me that the half of 'md_local' used for chaining was the
5981 half from which PRNG output bytes were taken -- I had always
5982 assumed that the secret half would be used.) The second
5983 measure makes sure that additional data from 'state' is never
5984 mixed into 'md_local' in small portions; this heuristically
5985 further strengthens the PRNG.
5988 *) Fix crypto/bn/asm/mips3.s.
5991 *) When only the key is given to "enc", the IV is undefined. Print out
5992 an error message in this case.
5995 *) Handle special case when X509_NAME is empty in X509 printing routines.
5998 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5999 positive and less than q.
6002 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
6003 used: it isn't thread safe and the add_lock_callback should handle
6005 [Paul Rose <Paul.Rose@bridge.com>]
6007 *) Verify that incoming data obeys the block size in
6008 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
6012 [Ulf Möller, Bodo Möller]
6014 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
6015 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
6016 when fixing the server behaviour for backwards-compatible 'client
6017 hello' messages. (Note that the attack is impractical against
6018 SSL 3.0 and TLS 1.0 anyway because length and version checking
6019 means that the probability of guessing a valid ciphertext is
6020 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
6023 Before 0.9.5, the countermeasure (hide the error by generating a
6024 random 'decryption result') did not work properly because
6025 ERR_clear_error() was missing, meaning that SSL_get_error() would
6026 detect the supposedly ignored error.
6028 Both problems are now fixed.
6031 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
6032 (previously it was 1024).
6035 *) Fix for compatibility mode trust settings: ignore trust settings
6036 unless some valid trust or reject settings are present.
6039 *) Fix for blowfish EVP: its a variable length cipher.
6042 *) Fix various bugs related to DSA S/MIME verification. Handle missing
6043 parameters in DSA public key structures and return an error in the
6044 DSA routines if parameters are absent.
6047 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
6048 in the current directory if neither $RANDFILE nor $HOME was set.
6049 RAND_file_name() in 0.9.6a returned NULL in this case. This has
6050 caused some confusion to Windows users who haven't defined $HOME.
6051 Thus RAND_file_name() is changed again: e_os.h can define a
6052 DEFAULT_HOME, which will be used if $HOME is not set.
6053 For Windows, we use "C:"; on other platforms, we still require
6054 environment variables.
6056 *) Move 'if (!initialized) RAND_poll()' into regions protected by
6057 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
6058 having multiple threads call RAND_poll() concurrently.
6061 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
6062 combination of a flag and a thread ID variable.
6063 Otherwise while one thread is in ssleay_rand_bytes (which sets the
6064 flag), *other* threads can enter ssleay_add_bytes without obeying
6065 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
6066 that they do not hold after the first thread unsets add_do_not_lock).
6069 *) Change bctest again: '-x' expressions are not available in all
6073 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
6075 *) Fix a couple of memory leaks in PKCS7_dataDecode()
6076 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
6078 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
6079 the default extension for executables, if any. Also, make the perl
6080 scripts that use symlink() to test if it really exists and use "cp"
6081 if it doesn't. All this made OpenSSL compilable and installable in
6085 *) Fix for asn1_GetSequence() for indefinite length constructed data.
6086 If SEQUENCE is length is indefinite just set c->slen to the total
6087 amount of data available.
6088 [Steve Henson, reported by shige@FreeBSD.org]
6089 [This change does not apply to 0.9.7.]
6091 *) Change bctest to avoid here-documents inside command substitution
6092 (workaround for FreeBSD /bin/sh bug).
6093 For compatibility with Ultrix, avoid shell functions (introduced
6094 in the bctest version that searches along $PATH).
6097 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
6098 with des_encrypt() defined on some operating systems, like Solaris
6102 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
6103 On the Importance of Eliminating Errors in Cryptographic
6104 Computations, J. Cryptology 14 (2001) 2, 101-119,
6105 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
6108 *) MIPS assembler BIGNUM division bug fix.
6111 *) Disabled incorrect Alpha assembler code.
6114 *) Fix PKCS#7 decode routines so they correctly update the length
6115 after reading an EOC for the EXPLICIT tag.
6117 [This change does not apply to 0.9.7.]
6119 *) Fix bug in PKCS#12 key generation routines. This was triggered
6120 if a 3DES key was generated with a 0 initial byte. Include
6121 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6122 (but broken) behaviour.
6125 *) Enhance bctest to search for a working bc along $PATH and print
6127 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6129 *) Fix memory leaks in err.c: free err_data string if necessary;
6130 don't write to the wrong index in ERR_set_error_data.
6133 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6137 *) Replace rdtsc with _emit statements for VC++ version 5.
6138 [Jeremy Cooper <jeremy@baymoo.org>]
6140 *) Make it possible to reuse SSLv2 sessions.
6143 *) In copy_email() check for >= 0 as a return value for
6144 X509_NAME_get_index_by_NID() since 0 is a valid index.
6145 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6147 *) Avoid coredump with unsupported or invalid public keys by checking if
6148 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6149 PKCS7_verify() fails with non detached data.
6152 *) Don't use getenv in library functions when run as setuid/setgid.
6153 New function OPENSSL_issetugid().
6156 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6157 due to incorrect handling of multi-threading:
6159 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6161 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6163 3. Count how many times MemCheck_off() has been called so that
6164 nested use can be treated correctly. This also avoids
6165 inband-signalling in the previous code (which relied on the
6166 assumption that thread ID 0 is impossible).
6169 *) Add "-rand" option also to s_client and s_server.
6172 *) Fix CPU detection on Irix 6.x.
6173 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6174 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6176 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6179 [This change does not apply to 0.9.7.]
6181 *) Use the cached encoding of an X509_NAME structure rather than
6182 copying it. This is apparently the reason for the libsafe "errors"
6183 but the code is actually correct.
6186 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6187 Bleichenbacher's DSA attack.
6188 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6189 to be set and top=0 forces the highest bit to be set; top=-1 is new
6190 and leaves the highest bit random.
6191 [Ulf Moeller, Bodo Moeller]
6193 *) In the NCONF_...-based implementations for CONF_... queries
6194 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6195 a temporary CONF structure with the data component set to NULL
6196 (which gives segmentation faults in lh_retrieve).
6197 Instead, use NULL for the CONF pointer in CONF_get_string and
6198 CONF_get_number (which may use environment variables) and directly
6199 return NULL from CONF_get_section.
6202 *) Fix potential buffer overrun for EBCDIC.
6205 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6206 keyUsage if basicConstraints absent for a CA.
6209 *) Make SMIME_write_PKCS7() write mail header values with a format that
6210 is more generally accepted (no spaces before the semicolon), since
6211 some programs can't parse those values properly otherwise. Also make
6212 sure BIO's that break lines after each write do not create invalid
6216 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6217 macros previously used would not encode an empty SEQUENCE OF
6218 and break the signature.
6220 [This change does not apply to 0.9.7.]
6222 *) Zero the premaster secret after deriving the master secret in
6226 *) Add some EVP_add_digest_alias registrations (as found in
6227 OpenSSL_add_all_digests()) to SSL_library_init()
6228 aka OpenSSL_add_ssl_algorithms(). This provides improved
6229 compatibility with peers using X.509 certificates
6230 with unconventional AlgorithmIdentifier OIDs.
6233 *) Fix for Irix with NO_ASM.
6234 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6236 *) ./config script fixes.
6237 [Ulf Moeller, Richard Levitte]
6239 *) Fix 'openssl passwd -1'.
6242 *) Change PKCS12_key_gen_asc() so it can cope with non null
6243 terminated strings whose length is passed in the passlen
6244 parameter, for example from PEM callbacks. This was done
6245 by adding an extra length parameter to asc2uni().
6246 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6248 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6249 call failed, free the DSA structure.
6252 *) Fix to uni2asc() to cope with zero length Unicode strings.
6253 These are present in some PKCS#12 files.
6256 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6257 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6258 when writing a 32767 byte record.
6259 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6261 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6262 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6264 (RSA objects have a reference count access to which is protected
6265 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6266 so they are meant to be shared between threads.)
6267 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6268 "Reddie, Steven" <Steven.Reddie@ca.com>]
6270 *) Fix a deadlock in CRYPTO_mem_leaks().
6273 *) Use better test patterns in bntest.
6276 *) rand_win.c fix for Borland C.
6279 *) BN_rshift bugfix for n == 0.
6282 *) Add a 'bctest' script that checks for some known 'bc' bugs
6283 so that 'make test' does not abort just because 'bc' is broken.
6286 *) Store verify_result within SSL_SESSION also for client side to
6287 avoid potential security hole. (Re-used sessions on the client side
6288 always resulted in verify_result==X509_V_OK, not using the original
6289 result of the server certificate verification.)
6292 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6293 SSL3_RT_APPLICATION_DATA, return 0.
6294 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6298 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6299 releases, have been re-implemented by renaming the previous
6300 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6301 and ssl3_read_internal, respectively, and adding 'peek' parameters
6302 to them. The new ssl[23]_{read,peek} functions are calls to
6303 ssl[23]_read_internal with the 'peek' flag set appropriately.
6304 A 'peek' parameter has also been added to ssl3_read_bytes, which
6305 does the actual work for ssl3_read_internal.
6308 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6309 the method-specific "init()" handler. Also clean up ex_data after
6310 calling the method-specific "finish()" handler. Previously, this was
6311 happening the other way round.
6314 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6315 The previous value, 12, was not always sufficient for BN_mod_exp().
6318 *) Make sure that shared libraries get the internal name engine with
6319 the full version number and not just 0. This should mark the
6320 shared libraries as not backward compatible. Of course, this should
6321 be changed again when we can guarantee backward binary compatibility.
6324 *) Fix typo in get_cert_by_subject() in by_dir.c
6325 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6327 *) Rework the system to generate shared libraries:
6329 - Make note of the expected extension for the shared libraries and
6330 if there is a need for symbolic links from for example libcrypto.so.0
6331 to libcrypto.so.0.9.7. There is extended info in Configure for
6334 - Make as few rebuilds of the shared libraries as possible.
6336 - Still avoid linking the OpenSSL programs with the shared libraries.
6338 - When installing, install the shared libraries separately from the
6342 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6344 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6345 and not in SSL_clear because the latter is also used by the
6346 accept/connect functions; previously, the settings made by
6347 SSL_set_read_ahead would be lost during the handshake.
6348 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6350 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6351 Previously, it would create entries for disableed algorithms no
6355 *) Added several new manual pages for SSL_* function.
6358 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6360 *) In ssl23_get_client_hello, generate an error message when faced
6361 with an initial SSL 3.0/TLS record that is too small to contain the
6362 first two bytes of the ClientHello message, i.e. client_version.
6363 (Note that this is a pathologic case that probably has never happened
6364 in real life.) The previous approach was to use the version number
6365 from the record header as a substitute; but our protocol choice
6366 should not depend on that one because it is not authenticated
6367 by the Finished messages.
6370 *) More robust randomness gathering functions for Windows.
6371 [Jeffrey Altman <jaltman@columbia.edu>]
6373 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6374 not set then we don't setup the error code for issuer check errors
6375 to avoid possibly overwriting other errors which the callback does
6376 handle. If an application does set the flag then we assume it knows
6377 what it is doing and can handle the new informational codes
6381 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6382 a general "ANY" type, as such it should be able to decode anything
6383 including tagged types. However it didn't check the class so it would
6384 wrongly interpret tagged types in the same way as their universal
6385 counterpart and unknown types were just rejected. Changed so that the
6386 tagged and unknown types are handled in the same way as a SEQUENCE:
6387 that is the encoding is stored intact. There is also a new type
6388 "V_ASN1_OTHER" which is used when the class is not universal, in this
6389 case we have no idea what the actual type is so we just lump them all
6393 *) On VMS, stdout may very well lead to a file that is written to
6394 in a record-oriented fashion. That means that every write() will
6395 write a separate record, which will be read separately by the
6396 programs trying to read from it. This can be very confusing.
6398 The solution is to put a BIO filter in the way that will buffer
6399 text until a linefeed is reached, and then write everything a
6400 line at a time, so every record written will be an actual line,
6401 not chunks of lines and not (usually doesn't happen, but I've
6402 seen it once) several lines in one record. BIO_f_linebuffer() is
6405 Currently, it's a VMS-only method, because that's where it has
6406 been tested well enough.
6409 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6410 it can return incorrect results.
6411 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6412 but it was in 0.9.6-beta[12].)
6415 *) Disable the check for content being present when verifying detached
6416 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6417 include zero length content when signing messages.
6420 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6421 BIO_ctrl (for BIO pairs).
6424 *) Add DSO method for VMS.
6427 *) Bug fix: Montgomery multiplication could produce results with the
6431 *) Add RPM specification openssl.spec and modify it to build three
6432 packages. The default package contains applications, application
6433 documentation and run-time libraries. The devel package contains
6434 include files, static libraries and function documentation. The
6435 doc package contains the contents of the doc directory. The original
6436 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6439 *) Add a large number of documentation files for many SSL routines.
6440 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6442 *) Add a configuration entry for Sony News 4.
6443 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6445 *) Don't set the two most significant bits to one when generating a
6446 random number < q in the DSA library.
6449 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6450 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6451 the underlying transport is blocking) if a handshake took place.
6452 (The default behaviour is needed by applications such as s_client
6453 and s_server that use select() to determine when to use SSL_read;
6454 but for applications that know in advance when to expect data, it
6455 just makes things more complicated.)
6458 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6462 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6463 work better on such systems.
6464 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6466 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6467 Update PKCS12_parse() so it copies the friendlyName and the
6468 keyid to the certificates aux info.
6471 *) Fix bug in PKCS7_verify() which caused an infinite loop
6472 if there was more than one signature.
6473 [Sven Uszpelkat <su@celocom.de>]
6475 *) Major change in util/mkdef.pl to include extra information
6476 about each symbol, as well as presentig variables as well
6477 as functions. This change means that there's n more need
6478 to rebuild the .num files when some algorithms are excluded.
6481 *) Allow the verify time to be set by an application,
6482 rather than always using the current time.
6485 *) Phase 2 verify code reorganisation. The certificate
6486 verify code now looks up an issuer certificate by a
6487 number of criteria: subject name, authority key id
6488 and key usage. It also verifies self signed certificates
6489 by the same criteria. The main comparison function is
6490 X509_check_issued() which performs these checks.
6492 Lot of changes were necessary in order to support this
6493 without completely rewriting the lookup code.
6495 Authority and subject key identifier are now cached.
6497 The LHASH 'certs' is X509_STORE has now been replaced
6498 by a STACK_OF(X509_OBJECT). This is mainly because an
6499 LHASH can't store or retrieve multiple objects with
6500 the same hash value.
6502 As a result various functions (which were all internal
6503 use only) have changed to handle the new X509_STORE
6504 structure. This will break anything that messed round
6505 with X509_STORE internally.
6507 The functions X509_STORE_add_cert() now checks for an
6508 exact match, rather than just subject name.
6510 The X509_STORE API doesn't directly support the retrieval
6511 of multiple certificates matching a given criteria, however
6512 this can be worked round by performing a lookup first
6513 (which will fill the cache with candidate certificates)
6514 and then examining the cache for matches. This is probably
6515 the best we can do without throwing out X509_LOOKUP
6516 entirely (maybe later...).
6518 The X509_VERIFY_CTX structure has been enhanced considerably.
6520 All certificate lookup operations now go via a get_issuer()
6521 callback. Although this currently uses an X509_STORE it
6522 can be replaced by custom lookups. This is a simple way
6523 to bypass the X509_STORE hackery necessary to make this
6524 work and makes it possible to use more efficient techniques
6525 in future. A very simple version which uses a simple
6526 STACK for its trusted certificate store is also provided
6527 using X509_STORE_CTX_trusted_stack().
6529 The verify_cb() and verify() callbacks now have equivalents
6530 in the X509_STORE_CTX structure.
6532 X509_STORE_CTX also has a 'flags' field which can be used
6533 to customise the verify behaviour.
6536 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6537 excludes S/MIME capabilities.
6540 *) When a certificate request is read in keep a copy of the
6541 original encoding of the signed data and use it when outputing
6542 again. Signatures then use the original encoding rather than
6543 a decoded, encoded version which may cause problems if the
6544 request is improperly encoded.
6547 *) For consistency with other BIO_puts implementations, call
6548 buffer_write(b, ...) directly in buffer_puts instead of calling
6551 In BIO_puts, increment b->num_write as in BIO_write.
6552 [Peter.Sylvester@EdelWeb.fr]
6554 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6555 BN_zero, we may not return a BIGNUM with an array consisting of
6559 *) Avoid calling abort() from within the library when problems are
6560 detected, except if preprocessor symbols have been defined
6561 (such as REF_CHECK, BN_DEBUG etc.).
6564 *) New openssl application 'rsautl'. This utility can be
6565 used for low level RSA operations. DER public key
6566 BIO/fp routines also added.
6569 *) New Configure entry and patches for compiling on QNX 4.
6570 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6572 *) A demo state-machine implementation was sponsored by
6573 Nuron (http://www.nuron.com/) and is now available in
6574 demos/state_machine.
6577 *) New options added to the 'dgst' utility for signature
6578 generation and verification.
6581 *) Unrecognized PKCS#7 content types are now handled via a
6582 catch all ASN1_TYPE structure. This allows unsupported
6583 types to be stored as a "blob" and an application can
6584 encode and decode it manually.
6587 *) Fix various signed/unsigned issues to make a_strex.c
6589 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6591 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6592 length if passed a buffer. ASN1_INTEGER_to_BN failed
6593 if passed a NULL BN and its argument was negative.
6594 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6596 *) Modification to PKCS#7 encoding routines to output definite
6597 length encoding. Since currently the whole structures are in
6598 memory there's not real point in using indefinite length
6599 constructed encoding. However if OpenSSL is compiled with
6600 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6603 *) Added BIO_vprintf() and BIO_vsnprintf().
6606 *) Added more prefixes to parse for in the the strings written
6607 through a logging bio, to cover all the levels that are available
6608 through syslog. The prefixes are now:
6610 PANIC, EMERG, EMR => LOG_EMERG
6611 ALERT, ALR => LOG_ALERT
6612 CRIT, CRI => LOG_CRIT
6613 ERROR, ERR => LOG_ERR
6614 WARNING, WARN, WAR => LOG_WARNING
6615 NOTICE, NOTE, NOT => LOG_NOTICE
6616 INFO, INF => LOG_INFO
6617 DEBUG, DBG => LOG_DEBUG
6619 and as before, if none of those prefixes are present at the
6620 beginning of the string, LOG_ERR is chosen.
6622 On Win32, the LOG_* levels are mapped according to this:
6624 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6625 LOG_WARNING => EVENTLOG_WARNING_TYPE
6626 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6630 *) Made it possible to reconfigure with just the configuration
6631 argument "reconf" or "reconfigure". The command line arguments
6632 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6633 and are retrieved from there when reconfiguring.
6637 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6639 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6642 *) The obj_dat.pl script was messing up the sorting of object
6643 names. The reason was that it compared the quoted version
6644 of strings as a result "OCSP" > "OCSP Signing" because
6645 " > SPACE. Changed script to store unquoted versions of
6646 names and add quotes on output. It was also omitting some
6647 names from the lookup table if they were given a default
6648 value (that is if SN is missing it is given the same
6649 value as LN and vice versa), these are now added on the
6650 grounds that if an object has a name we should be able to
6651 look it up. Finally added warning output when duplicate
6652 short or long names are found.
6655 *) Changes needed for Tandem NSK.
6656 [Scott Uroff <scott@xypro.com>]
6658 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6659 RSA_padding_check_SSLv23(), special padding was never detected
6660 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6661 version rollback attacks was not effective.
6663 In s23_clnt.c, don't use special rollback-attack detection padding
6664 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6665 client; similarly, in s23_srvr.c, don't do the rollback check if
6666 SSL 2.0 is the only protocol enabled in the server.
6669 *) Make it possible to get hexdumps of unprintable data with 'openssl
6670 asn1parse'. By implication, the functions ASN1_parse_dump() and
6671 BIO_dump_indent() are added.
6674 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6675 these print out strings and name structures based on various
6676 flags including RFC2253 support and proper handling of
6677 multibyte characters. Added options to the 'x509' utility
6678 to allow the various flags to be set.
6681 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6682 Also change the functions X509_cmp_current_time() and
6683 X509_gmtime_adj() work with an ASN1_TIME structure,
6684 this will enable certificates using GeneralizedTime in validity
6685 dates to be checked.
6688 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6689 negative public key encodings) on by default,
6690 NO_NEG_PUBKEY_BUG can be set to disable it.
6693 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6694 content octets. An i2c_ASN1_OBJECT is unnecessary because
6695 the encoding can be trivially obtained from the structure.
6698 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6699 not read locks (CRYPTO_r_[un]lock).
6702 *) A first attempt at creating official support for shared
6703 libraries through configuration. I've kept it so the
6704 default is static libraries only, and the OpenSSL programs
6705 are always statically linked for now, but there are
6706 preparations for dynamic linking in place.
6707 This has been tested on Linux and Tru64.
6710 *) Randomness polling function for Win9x, as described in:
6711 Peter Gutmann, Software Generation of Practically Strong
6715 *) Fix so PRNG is seeded in req if using an already existing
6719 *) New options to smime application. -inform and -outform
6720 allow alternative formats for the S/MIME message including
6721 PEM and DER. The -content option allows the content to be
6722 specified separately. This should allow things like Netscape
6723 form signing output easier to verify.
6726 *) Fix the ASN1 encoding of tags using the 'long form'.
6729 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6730 STRING types. These convert content octets to and from the
6731 underlying type. The actual tag and length octets are
6732 already assumed to have been read in and checked. These
6733 are needed because all other string types have virtually
6734 identical handling apart from the tag. By having versions
6735 of the ASN1 functions that just operate on content octets
6736 IMPLICIT tagging can be handled properly. It also allows
6737 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6738 and ASN1_INTEGER are identical apart from the tag.
6741 *) Change the handling of OID objects as follows:
6743 - New object identifiers are inserted in objects.txt, following
6744 the syntax given in objects.README.
6745 - objects.pl is used to process obj_mac.num and create a new
6747 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6750 This is currently kind of a hack, and the perl code in objects.pl
6751 isn't very elegant, but it works as I intended. The simplest way
6752 to check that it worked correctly is to look in obj_dat.h and
6753 check the array nid_objs and make sure the objects haven't moved
6754 around (this is important!). Additions are OK, as well as
6755 consistent name changes.
6758 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6761 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6762 The given file adds to whatever has already been seeded into the
6763 random pool through the RANDFILE configuration file option or
6764 environment variable, or the default random state file.
6767 *) mkstack.pl now sorts each macro group into lexical order.
6768 Previously the output order depended on the order the files
6769 appeared in the directory, resulting in needless rewriting
6773 *) Patches to make OpenSSL compile under Win32 again. Mostly
6774 work arounds for the VC++ problem that it treats func() as
6775 func(void). Also stripped out the parts of mkdef.pl that
6776 added extra typesafe functions: these no longer exist.
6779 *) Reorganisation of the stack code. The macros are now all
6780 collected in safestack.h . Each macro is defined in terms of
6781 a "stack macro" of the form SKM_<name>(type, a, b). The
6782 DEBUG_SAFESTACK is now handled in terms of function casts,
6783 this has the advantage of retaining type safety without the
6784 use of additional functions. If DEBUG_SAFESTACK is not defined
6785 then the non typesafe macros are used instead. Also modified the
6786 mkstack.pl script to handle the new form. Needs testing to see
6787 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6788 the default if no major problems. Similar behaviour for ASN1_SET_OF
6789 and PKCS12_STACK_OF.
6792 *) When some versions of IIS use the 'NET' form of private key the
6793 key derivation algorithm is different. Normally MD5(password) is
6794 used as a 128 bit RC4 key. In the modified case
6795 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6796 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6797 as the old Netscape_RSA functions except they have an additional
6798 'sgckey' parameter which uses the modified algorithm. Also added
6799 an -sgckey command line option to the rsa utility. Thanks to
6800 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6801 algorithm to openssl-dev.
6804 *) The evp_local.h macros were using 'c.##kname' which resulted in
6805 invalid expansion on some systems (SCO 5.0.5 for example).
6806 Corrected to 'c.kname'.
6807 [Phillip Porch <root@theporch.com>]
6809 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6810 a STACK of email addresses from a certificate or request, these look
6811 in the subject name and the subject alternative name extensions and
6812 omit any duplicate addresses.
6815 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6816 This makes DSA verification about 2 % faster.
6819 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6820 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6821 plus overhead for 1024 bit moduli).
6822 This makes exponentiations about 0.5 % faster for 1024 bit
6823 exponents (as measured by "openssl speed rsa2048").
6826 *) Rename memory handling macros to avoid conflicts with other
6828 Malloc => OPENSSL_malloc
6829 Malloc_locked => OPENSSL_malloc_locked
6830 Realloc => OPENSSL_realloc
6831 Free => OPENSSL_free
6834 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6835 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6838 *) CygWin32 support.
6839 [John Jarvie <jjarvie@newsguy.com>]
6841 *) The type-safe stack code has been rejigged. It is now only compiled
6842 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6843 by default all type-specific stack functions are "#define"d back to
6844 standard stack functions. This results in more streamlined output
6845 but retains the type-safety checking possibilities of the original
6849 *) The STACK code has been cleaned up, and certain type declarations
6850 that didn't make a lot of sense have been brought in line. This has
6851 also involved a cleanup of sorts in safestack.h to more correctly
6852 map type-safe stack functions onto their plain stack counterparts.
6853 This work has also resulted in a variety of "const"ifications of
6854 lots of the code, especially "_cmp" operations which should normally
6855 be prototyped with "const" parameters anyway.
6858 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6859 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6860 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6861 where all of 'md' is used each time the PRNG is used, but 'state'
6862 is used only indexed by a cyclic counter. As entropy may not be
6863 well distributed from the beginning, 'md' is important as a
6864 chaining variable. However, the output function chains only half
6865 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6866 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6867 in all of 'state' being rewritten, with the new values depending
6868 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6871 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6872 the handshake is continued after ssl_verify_cert_chain();
6873 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6874 can lead to 'unexplainable' connection aborts later.
6875 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6877 *) Major EVP API cipher revision.
6878 Add hooks for extra EVP features. This allows various cipher
6879 parameters to be set in the EVP interface. Support added for variable
6880 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6881 setting of RC2 and RC5 parameters.
6883 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6886 Remove lots of duplicated code from the EVP library. For example *every*
6887 cipher init() function handles the 'iv' in the same way according to the
6888 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6889 for CFB and OFB modes they zero ctx->num.
6891 New functionality allows removal of S/MIME code RC2 hack.
6893 Most of the routines have the same form and so can be declared in terms
6896 By shifting this to the top level EVP_CipherInit() it can be removed from
6897 all individual ciphers. If the cipher wants to handle IVs or keys
6898 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6901 Change lots of functions like EVP_EncryptUpdate() to now return a
6902 value: although software versions of the algorithms cannot fail
6903 any installed hardware versions can.
6906 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6907 this option is set, tolerate broken clients that send the negotiated
6908 protocol version number instead of the requested protocol version
6912 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6913 i.e. non-zero for export ciphersuites, zero otherwise.
6914 Previous versions had this flag inverted, inconsistent with
6915 rsa_tmp_cb (..._TMP_RSA_CB).
6916 [Bodo Moeller; problem reported by Amit Chopra]
6918 *) Add missing DSA library text string. Work around for some IIS
6919 key files with invalid SEQUENCE encoding.
6922 *) Add a document (doc/standards.txt) that list all kinds of standards
6923 and so on that are implemented in OpenSSL.
6926 *) Enhance c_rehash script. Old version would mishandle certificates
6927 with the same subject name hash and wouldn't handle CRLs at all.
6928 Added -fingerprint option to crl utility, to support new c_rehash
6932 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6935 *) Fix for SSL server purpose checking. Server checking was
6936 rejecting certificates which had extended key usage present
6937 but no ssl client purpose.
6938 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6940 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6941 is a little unclear about how a blank password is handled.
6942 Since the password in encoded as a BMPString with terminating
6943 double NULL a zero length password would end up as just the
6944 double NULL. However no password at all is different and is
6945 handled differently in the PKCS#12 key generation code. NS
6946 treats a blank password as zero length. MSIE treats it as no
6947 password on export: but it will try both on import. We now do
6948 the same: PKCS12_parse() tries zero length and no password if
6949 the password is set to "" or NULL (NULL is now a valid password:
6950 it wasn't before) as does the pkcs12 application.
6953 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6954 perror when PEM_read_bio_X509_REQ fails, the error message must
6955 be obtained from the error queue.
6958 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6959 it in ERR_remove_state if appropriate, and change ERR_get_state
6960 accordingly to avoid race conditions (this is necessary because
6961 thread_hash is no longer constant once set).
6964 *) Bugfix for linux-elf makefile.one.
6967 *) RSA_get_default_method() will now cause a default
6968 RSA_METHOD to be chosen if one doesn't exist already.
6969 Previously this was only set during a call to RSA_new()
6970 or RSA_new_method(NULL) meaning it was possible for
6971 RSA_get_default_method() to return NULL.
6974 *) Added native name translation to the existing DSO code
6975 that will convert (if the flag to do so is set) filenames
6976 that are sufficiently small and have no path information
6977 into a canonical native form. Eg. "blah" converted to
6978 "libblah.so" or "blah.dll" etc.
6981 *) New function ERR_error_string_n(e, buf, len) which is like
6982 ERR_error_string(e, buf), but writes at most 'len' bytes
6983 including the 0 terminator. For ERR_error_string_n, 'buf'
6985 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6987 *) CONF library reworked to become more general. A new CONF
6988 configuration file reader "class" is implemented as well as a
6989 new functions (NCONF_*, for "New CONF") to handle it. The now
6990 old CONF_* functions are still there, but are reimplemented to
6991 work in terms of the new functions. Also, a set of functions
6992 to handle the internal storage of the configuration data is
6993 provided to make it easier to write new configuration file
6994 reader "classes" (I can definitely see something reading a
6995 configuration file in XML format, for example), called _CONF_*,
6996 or "the configuration storage API"...
6998 The new configuration file reading functions are:
7000 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
7001 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
7003 NCONF_default, NCONF_WIN32
7005 NCONF_dump_fp, NCONF_dump_bio
7007 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
7008 NCONF_new creates a new CONF object. This works in the same way
7009 as other interfaces in OpenSSL, like the BIO interface.
7010 NCONF_dump_* dump the internal storage of the configuration file,
7011 which is useful for debugging. All other functions take the same
7012 arguments as the old CONF_* functions wth the exception of the
7013 first that must be a `CONF *' instead of a `LHASH *'.
7015 To make it easer to use the new classes with the old CONF_* functions,
7016 the function CONF_set_default_method is provided.
7019 *) Add '-tls1' option to 'openssl ciphers', which was already
7020 mentioned in the documentation but had not been implemented.
7021 (This option is not yet really useful because even the additional
7022 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
7025 *) Initial DSO code added into libcrypto for letting OpenSSL (and
7026 OpenSSL-based applications) load shared libraries and bind to
7027 them in a portable way.
7028 [Geoff Thorpe, with contributions from Richard Levitte]
7030 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
7032 *) Make sure _lrotl and _lrotr are only used with MSVC.
7034 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
7035 (the default implementation of RAND_status).
7037 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
7038 to '-clrext' (= clear extensions), as intended and documented.
7039 [Bodo Moeller; inconsistency pointed out by Michael Attili
7042 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
7043 was larger than the MD block size.
7044 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
7046 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
7047 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
7048 using the passed key: if the passed key was a private key the result
7049 of X509_print(), for example, would be to print out all the private key
7053 *) des_quad_cksum() byte order bug fix.
7054 [Ulf Möller, using the problem description in krb4-0.9.7, where
7055 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
7057 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
7059 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
7061 *) For easily testing in shell scripts whether some command
7062 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
7063 returns with exit code 0 iff no command of the given name is available.
7064 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
7065 the output goes to stdout and nothing is printed to stderr.
7066 Additional arguments are always ignored.
7068 Since for each cipher there is a command of the same name,
7069 the 'no-cipher' compilation switches can be tested this way.
7071 ('openssl no-XXX' is not able to detect pseudo-commands such
7072 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
7075 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
7078 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
7079 is set; it will be thrown away anyway because each handshake creates
7081 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
7082 to parameters -- in previous versions (since OpenSSL 0.9.3) the
7083 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
7084 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
7087 *) New s_client option -ign_eof: EOF at stdin is ignored, and
7088 'Q' and 'R' lose their special meanings (quit/renegotiate).
7089 This is part of what -quiet does; unlike -quiet, -ign_eof
7090 does not suppress any output.
7093 *) Add compatibility options to the purpose and trust code. The
7094 purpose X509_PURPOSE_ANY is "any purpose" which automatically
7095 accepts a certificate or CA, this was the previous behaviour,
7096 with all the associated security issues.
7098 X509_TRUST_COMPAT is the old trust behaviour: only and
7099 automatically trust self signed roots in certificate store. A
7100 new trust setting X509_TRUST_DEFAULT is used to specify that
7101 a purpose has no associated trust setting and it should instead
7102 use the value in the default purpose.
7105 *) Fix the PKCS#8 DSA private key code so it decodes keys again
7106 and fix a memory leak.
7109 *) In util/mkerr.pl (which implements 'make errors'), preserve
7110 reason strings from the previous version of the .c file, as
7111 the default to have only downcase letters (and digits) in
7112 automatically generated reasons codes is not always appropriate.
7115 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
7116 using strerror. Previously, ERR_reason_error_string() returned
7117 library names as reason strings for SYSerr; but SYSerr is a special
7118 case where small numbers are errno values, not library numbers.
7121 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7122 converts DSA parameters into DH parameters. (When creating parameters,
7123 DSA_generate_parameters is used.)
7126 *) Include 'length' (recommended exponent length) in C code generated
7127 by 'openssl dhparam -C'.
7130 *) The second argument to set_label in perlasm was already being used
7131 so couldn't be used as a "file scope" flag. Moved to third argument
7135 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7136 instead of RAND_bytes for encryption IVs and salts.
7139 *) Include RAND_status() into RAND_METHOD instead of implementing
7140 it only for md_rand.c Otherwise replacing the PRNG by calling
7141 RAND_set_rand_method would be impossible.
7144 *) Don't let DSA_generate_key() enter an infinite loop if the random
7145 number generation fails.
7148 *) New 'rand' application for creating pseudo-random output.
7151 *) Added configuration support for Linux/IA64
7152 [Rolf Haberrecker <rolf@suse.de>]
7154 *) Assembler module support for Mingw32.
7157 *) Shared library support for HPUX (in shlib/).
7158 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7160 *) Shared library support for Solaris gcc.
7161 [Lutz Behnke <behnke@trustcenter.de>]
7163 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7165 *) PKCS7_encrypt() was adding text MIME headers twice because they
7166 were added manually and by SMIME_crlf_copy().
7169 *) In bntest.c don't call BN_rand with zero bits argument.
7170 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7172 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7173 case was implemented. This caused BN_div_recp() to fail occasionally.
7176 *) Add an optional second argument to the set_label() in the perl
7177 assembly language builder. If this argument exists and is set
7178 to 1 it signals that the assembler should use a symbol whose
7179 scope is the entire file, not just the current function. This
7180 is needed with MASM which uses the format label:: for this scope.
7181 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7183 *) Change the ASN1 types so they are typedefs by default. Before
7184 almost all types were #define'd to ASN1_STRING which was causing
7185 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7189 *) Change names of new functions to the new get1/get0 naming
7190 convention: After 'get1', the caller owns a reference count
7191 and has to call ..._free; 'get0' returns a pointer to some
7192 data structure without incrementing reference counters.
7193 (Some of the existing 'get' functions increment a reference
7194 counter, some don't.)
7195 Similarly, 'set1' and 'add1' functions increase reference
7196 counters or duplicate objects.
7199 *) Allow for the possibility of temp RSA key generation failure:
7200 the code used to assume it always worked and crashed on failure.
7203 *) Fix potential buffer overrun problem in BIO_printf().
7204 [Ulf Möller, using public domain code by Patrick Powell; problem
7205 pointed out by David Sacerdote <das33@cornell.edu>]
7207 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7208 RAND_egd() and RAND_status(). In the command line application,
7209 the EGD socket can be specified like a seed file using RANDFILE
7213 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7214 Some CAs (e.g. Verisign) distribute certificates in this form.
7217 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7218 list to exclude them. This means that no special compilation option
7219 is needed to use anonymous DH: it just needs to be included in the
7223 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7224 EVP_MD_type. The old functionality is available in a new macro called
7225 EVP_MD_md(). Change code that uses it and update docs.
7228 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7229 where the 'void *' argument is replaced by a function pointer argument.
7230 Previously 'void *' was abused to point to functions, which works on
7231 many platforms, but is not correct. As these functions are usually
7232 called by macros defined in OpenSSL header files, most source code
7233 should work without changes.
7236 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7237 sections with information on -D... compiler switches used for
7238 compiling the library so that applications can see them. To enable
7239 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7240 must be defined. E.g.,
7241 #define OPENSSL_ALGORITHM_DEFINES
7242 #include <openssl/opensslconf.h>
7243 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7244 [Richard Levitte, Ulf and Bodo Möller]
7246 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7250 *) Change the 'other' type in certificate aux info to a STACK_OF
7251 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7252 the required ASN1 format: arbitrary types determined by an OID.
7255 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7256 argument to 'req'. This is not because the function is newer or
7257 better than others it just uses the work 'NEW' in the certificate
7258 request header lines. Some software needs this.
7261 *) Reorganise password command line arguments: now passwords can be
7262 obtained from various sources. Delete the PEM_cb function and make
7263 it the default behaviour: i.e. if the callback is NULL and the
7264 usrdata argument is not NULL interpret it as a null terminated pass
7265 phrase. If usrdata and the callback are NULL then the pass phrase
7266 is prompted for as usual.
7269 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7270 the support is automatically enabled. The resulting binaries will
7271 autodetect the card and use it if present.
7272 [Ben Laurie and Compaq Inc.]
7274 *) Work around for Netscape hang bug. This sends certificate request
7275 and server done in one record. Since this is perfectly legal in the
7276 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7277 the bugs/SSLv3 entry for more info.
7280 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7283 *) Add -rand argument to smime and pkcs12 applications and read/write
7287 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7290 *) Add command line password options to the remaining applications.
7293 *) Bug fix for BN_div_recp() for numerators with an even number of
7297 *) More tests in bntest.c, and changed test_bn output.
7300 *) ./config recognizes MacOS X now.
7303 *) Bug fix for BN_div() when the first words of num and divsor are
7304 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7307 *) Add support for various broken PKCS#8 formats, and command line
7308 options to produce them.
7311 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7312 get temporary BIGNUMs from a BN_CTX.
7315 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7319 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7320 include a #define from the old name to the new. The original intent
7321 was that statically linked binaries could for example just call
7322 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7323 link with digests. This never worked becayse SSLeay_add_all_digests()
7324 and SSLeay_add_all_ciphers() were in the same source file so calling
7325 one would link with the other. They are now in separate source files.
7328 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7331 *) Use a less unusual form of the Miller-Rabin primality test (it used
7332 a binary algorithm for exponentiation integrated into the Miller-Rabin
7333 loop, our standard modexp algorithms are faster).
7336 *) Support for the EBCDIC character set completed.
7337 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7339 *) Source code cleanups: use const where appropriate, eliminate casts,
7340 use void * instead of char * in lhash.
7343 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7344 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7345 this the server could overwrite ephemeral keys that the client
7349 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7350 using 50 iterations of the Rabin-Miller test.
7352 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7353 iterations of the Rabin-Miller test as required by the appendix
7354 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7355 As BN_is_prime_fasttest includes trial division, DSA parameter
7356 generation becomes much faster.
7358 This implies a change for the callback functions in DSA_is_prime
7359 and DSA_generate_parameters: The callback function is called once
7360 for each positive witness in the Rabin-Miller test, not just
7361 occasionally in the inner loop; and the parameters to the
7362 callback function now provide an iteration count for the outer
7363 loop rather than for the current invocation of the inner loop.
7364 DSA_generate_parameters additionally can call the callback
7365 function with an 'iteration count' of -1, meaning that a
7366 candidate has passed the trial division test (when q is generated
7367 from an application-provided seed, trial division is skipped).
7370 *) New function BN_is_prime_fasttest that optionally does trial
7371 division before starting the Rabin-Miller test and has
7372 an additional BN_CTX * argument (whereas BN_is_prime always
7373 has to allocate at least one BN_CTX).
7374 'callback(1, -1, cb_arg)' is called when a number has passed the
7375 trial division stage.
7378 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7382 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7385 *) New function BN_pseudo_rand().
7388 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7389 bignum version of BN_from_montgomery() with the working code from
7390 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7394 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7395 made it impossible to use the same SSL_SESSION data structure in
7396 SSL2 clients in multiple threads.
7399 *) The return value of RAND_load_file() no longer counts bytes obtained
7400 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7401 to seed the PRNG (previously an explicit byte count was required).
7402 [Ulf Möller, Bodo Möller]
7404 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7405 used (char *) instead of (void *) and had casts all over the place.
7408 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7411 *) Retain source code compatibility for BN_prime_checks macro:
7412 BN_is_prime(..., BN_prime_checks, ...) now uses
7413 BN_prime_checks_for_size to determine the appropriate number of
7414 Rabin-Miller iterations.
7417 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7418 DH_CHECK_P_NOT_SAFE_PRIME.
7419 (Check if this is true? OpenPGP calls them "strong".)
7422 *) Merge the functionality of "dh" and "gendh" programs into a new program
7423 "dhparam". The old programs are retained for now but will handle DH keys
7424 (instead of parameters) in future.
7427 *) Make the ciphers, s_server and s_client programs check the return values
7428 when a new cipher list is set.
7431 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7432 ciphers. Before when the 56bit ciphers were enabled the sorting was
7435 The syntax for the cipher sorting has been extended to support sorting by
7436 cipher-strength (using the strength_bits hard coded in the tables).
7437 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7439 Fix a bug in the cipher-command parser: when supplying a cipher command
7440 string with an "undefined" symbol (neither command nor alphanumeric
7441 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7442 an error is flagged.
7444 Due to the strength-sorting extension, the code of the
7445 ssl_create_cipher_list() function was completely rearranged. I hope that
7446 the readability was also increased :-)
7447 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7449 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7450 for the first serial number and places 2 in the serial number file. This
7451 avoids problems when the root CA is created with serial number zero and
7452 the first user certificate has the same issuer name and serial number
7456 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7457 the new code. Add documentation for this stuff.
7460 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7461 X509_*() to X509at_*() on the grounds that they don't handle X509
7462 structures and behave in an analagous way to the X509v3 functions:
7463 they shouldn't be called directly but wrapper functions should be used
7466 So we also now have some wrapper functions that call the X509at functions
7467 when passed certificate requests. (TO DO: similar things can be done with
7468 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7469 things. Some of these need some d2i or i2d and print functionality
7470 because they handle more complex structures.)
7473 *) Add missing #ifndefs that caused missing symbols when building libssl
7474 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7475 NO_RSA in ssl/s2*.c.
7476 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7478 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7479 has a return value which indicates the quality of the random data
7480 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7481 error queue. New function RAND_pseudo_bytes() generates output that is
7482 guaranteed to be unique but not unpredictable. RAND_add is like
7483 RAND_seed, but takes an extra argument for an entropy estimate
7484 (RAND_seed always assumes full entropy).
7487 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7488 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7489 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7490 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7491 false-positive rate of at most 2^-80 for random input.
7494 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7497 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7498 in the 0.9.5 release), this returns the chain
7499 from an X509_CTX structure with a dup of the stack and all
7500 the X509 reference counts upped: so the stack will exist
7501 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7504 Also make SSL_SESSION_print() print out the verify return
7508 *) Add manpage for the pkcs12 command. Also change the default
7509 behaviour so MAC iteration counts are used unless the new
7510 -nomaciter option is used. This improves file security and
7511 only older versions of MSIE (4.0 for example) need it.
7514 *) Honor the no-xxx Configure options when creating .DEF files.
7517 *) Add PKCS#10 attributes to field table: challengePassword,
7518 unstructuredName and unstructuredAddress. These are taken from
7519 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7520 international characters are used.
7522 More changes to X509_ATTRIBUTE code: allow the setting of types
7523 based on strings. Remove the 'loc' parameter when adding
7524 attributes because these will be a SET OF encoding which is sorted
7528 *) Initial changes to the 'req' utility to allow request generation
7529 automation. This will allow an application to just generate a template
7530 file containing all the field values and have req construct the
7533 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7534 used all over the place including certificate requests and PKCS#7
7535 structures. They are currently handled manually where necessary with
7536 some primitive wrappers for PKCS#7. The new functions behave in a
7537 manner analogous to the X509 extension functions: they allow
7538 attributes to be looked up by NID and added.
7540 Later something similar to the X509V3 code would be desirable to
7541 automatically handle the encoding, decoding and printing of the
7542 more complex types. The string types like challengePassword can
7543 be handled by the string table functions.
7545 Also modified the multi byte string table handling. Now there is
7546 a 'global mask' which masks out certain types. The table itself
7547 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7548 is useful when for example there is only one permissible type
7549 (as in countryName) and using the mask might result in no valid
7553 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7554 SSL_get_peer_finished to allow applications to obtain the latest
7555 Finished messages sent to the peer or expected from the peer,
7556 respectively. (SSL_get_peer_finished is usually the Finished message
7557 actually received from the peer, otherwise the protocol will be aborted.)
7559 As the Finished message are message digests of the complete handshake
7560 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7561 be used for external authentication procedures when the authentication
7562 provided by SSL/TLS is not desired or is not enough.
7565 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7566 the host supports BWX extension and if Compaq C is present on the
7567 $PATH. Just exploiting of the BWX extension results in 20-30%
7568 performance kick for some algorithms, e.g. DES and RC4 to mention
7569 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7573 *) Add support for MS "fast SGC". This is arguably a violation of the
7574 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7575 weak crypto and after checking the certificate is SGC a second one
7576 with strong crypto. MS SGC stops the first handshake after receiving
7577 the server certificate message and sends a second client hello. Since
7578 a server will typically do all the time consuming operations before
7579 expecting any further messages from the client (server key exchange
7580 is the most expensive) there is little difference between the two.
7582 To get OpenSSL to support MS SGC we have to permit a second client
7583 hello message after we have sent server done. In addition we have to
7584 reset the MAC if we do get this second client hello.
7587 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7588 if a DER encoded private key is RSA or DSA traditional format. Changed
7589 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7590 format DER encoded private key. Newer code should use PKCS#8 format which
7591 has the key type encoded in the ASN1 structure. Added DER private key
7592 support to pkcs8 application.
7595 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7596 ciphersuites has been selected (as required by the SSL 3/TLS 1
7597 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7598 is set, we interpret this as a request to violate the specification
7599 (the worst that can happen is a handshake failure, and 'correct'
7600 behaviour would result in a handshake failure anyway).
7603 *) In SSL_CTX_add_session, take into account that there might be multiple
7604 SSL_SESSION structures with the same session ID (e.g. when two threads
7605 concurrently obtain them from an external cache).
7606 The internal cache can handle only one SSL_SESSION with a given ID,
7607 so if there's a conflict, we now throw out the old one to achieve
7611 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7612 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7613 some routines that use cipher OIDs: some ciphers do not have OIDs
7614 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7618 *) Simplify the trust setting structure and code. Now we just have
7619 two sequences of OIDs for trusted and rejected settings. These will
7620 typically have values the same as the extended key usage extension
7621 and any application specific purposes.
7623 The trust checking code now has a default behaviour: it will just
7624 check for an object with the same NID as the passed id. Functions can
7625 be provided to override either the default behaviour or the behaviour
7626 for a given id. SSL client, server and email already have functions
7627 in place for compatibility: they check the NID and also return "trusted"
7628 if the certificate is self signed.
7631 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7632 traditional format into an EVP_PKEY structure.
7635 *) Add a password callback function PEM_cb() which either prompts for
7636 a password if usr_data is NULL or otherwise assumes it is a null
7637 terminated password. Allow passwords to be passed on command line
7638 environment or config files in a few more utilities.
7641 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7642 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7643 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7644 Update documentation.
7647 *) Support for ASN1 "NULL" type. This could be handled before by using
7648 ASN1_TYPE but there wasn't any function that would try to read a NULL
7649 and produce an error if it couldn't. For compatibility we also have
7650 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7651 don't allocate anything because they don't need to.
7654 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7656 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7658 *) Rebuild of the memory allocation routines used by OpenSSL code and
7659 possibly others as well. The purpose is to make an interface that
7660 provide hooks so anyone can build a separate set of allocation and
7661 deallocation routines to be used by OpenSSL, for example memory
7662 pool implementations, or something else, which was previously hard
7663 since Malloc(), Realloc() and Free() were defined as macros having
7664 the values malloc, realloc and free, respectively (except for Win32
7665 compilations). The same is provided for memory debugging code.
7666 OpenSSL already comes with functionality to find memory leaks, but
7667 this gives people a chance to debug other memory problems.
7669 With these changes, a new set of functions and macros have appeared:
7671 CRYPTO_set_mem_debug_functions() [F]
7672 CRYPTO_get_mem_debug_functions() [F]
7673 CRYPTO_dbg_set_options() [F]
7674 CRYPTO_dbg_get_options() [F]
7675 CRYPTO_malloc_debug_init() [M]
7677 The memory debug functions are NULL by default, unless the library
7678 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7679 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7680 gives the standard debugging functions that come with OpenSSL) or
7681 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7682 provided by the library user) must be used. When the standard
7683 debugging functions are used, CRYPTO_dbg_set_options can be used to
7684 request additional information:
7685 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7686 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7688 Also, things like CRYPTO_set_mem_functions will always give the
7689 expected result (the new set of functions is used for allocation
7690 and deallocation) at all times, regardless of platform and compiler
7693 To finish it up, some functions that were never use in any other
7694 way than through macros have a new API and new semantic:
7697 CRYPTO_dbg_realloc()
7700 All macros of value have retained their old syntax.
7701 [Richard Levitte and Bodo Moeller]
7703 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7704 ordering of SMIMECapabilities wasn't in "strength order" and there
7705 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7709 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7710 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7711 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7713 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7714 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7715 functionality to handle multipart/signed properly) and a utility
7716 called 'smime' to call all this stuff. This is based on code I
7717 originally wrote for Celo who have kindly allowed it to be
7718 included in OpenSSL.
7721 *) Add variants des_set_key_checked and des_set_key_unchecked of
7722 des_set_key (aka des_key_sched). Global variable des_check_key
7723 decides which of these is called by des_set_key; this way
7724 des_check_key behaves as it always did, but applications and
7725 the library itself, which was buggy for des_check_key == 1,
7726 have a cleaner way to pick the version they need.
7729 *) New function PKCS12_newpass() which changes the password of a
7733 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7734 dynamic mix. In both cases the ids can be used as an index into the
7735 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7736 functions so they accept a list of the field values and the
7737 application doesn't need to directly manipulate the X509_TRUST
7741 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7745 *) Modify the way the V3 extension code looks up extensions. This now
7746 works in a similar way to the object code: we have some "standard"
7747 extensions in a static table which is searched with OBJ_bsearch()
7748 and the application can add dynamic ones if needed. The file
7749 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7750 updated whenever a new extension is added to the core code and kept
7751 in ext_nid order. There is a simple program 'tabtest.c' which checks
7752 this. New extensions are not added too often so this file can readily
7753 be maintained manually.
7755 There are two big advantages in doing things this way. The extensions
7756 can be looked up immediately and no longer need to be "added" using
7757 X509V3_add_standard_extensions(): this function now does nothing.
7758 [Side note: I get *lots* of email saying the extension code doesn't
7759 work because people forget to call this function]
7760 Also no dynamic allocation is done unless new extensions are added:
7761 so if we don't add custom extensions there is no need to call
7762 X509V3_EXT_cleanup().
7765 *) Modify enc utility's salting as follows: make salting the default. Add a
7766 magic header, so unsalted files fail gracefully instead of just decrypting
7767 to garbage. This is because not salting is a big security hole, so people
7768 should be discouraged from doing it.
7771 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7772 digest to be passed on the command line but it only used this
7773 parameter when signing a certificate. Modified so all relevant
7774 operations are affected by the digest parameter including the
7775 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7776 DSA key was used because it didn't fix the digest.
7779 *) Initial certificate chain verify code. Currently tests the untrusted
7780 certificates for consistency with the verify purpose (which is set
7781 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7783 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7784 this is because it will reject chains with invalid extensions whereas
7785 every previous version of OpenSSL and SSLeay made no checks at all.
7787 Trust code: checks the root CA for the relevant trust settings. Trust
7788 settings have an initial value consistent with the verify purpose: e.g.
7789 if the verify purpose is for SSL client use it expects the CA to be
7790 trusted for SSL client use. However the default value can be changed to
7791 permit custom trust settings: one example of this would be to only trust
7792 certificates from a specific "secure" set of CAs.
7794 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7795 which should be used for version portability: especially since the
7796 verify structure is likely to change more often now.
7798 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7799 to set them. If not set then assume SSL clients will verify SSL servers
7802 Two new options to the verify program: -untrusted allows a set of
7803 untrusted certificates to be passed in and -purpose which sets the
7804 intended purpose of the certificate. If a purpose is set then the
7805 new chain verify code is used to check extension consistency.
7808 *) Support for the authority information access extension.
7811 *) Modify RSA and DSA PEM read routines to transparently handle
7812 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7813 public keys in a format compatible with certificate
7814 SubjectPublicKeyInfo structures. Unfortunately there were already
7815 functions called *_PublicKey_* which used various odd formats so
7816 these are retained for compatibility: however the DSA variants were
7817 never in a public release so they have been deleted. Changed dsa/rsa
7818 utilities to handle the new format: note no releases ever handled public
7819 keys so we should be OK.
7821 The primary motivation for this change is to avoid the same fiasco
7822 that dogs private keys: there are several incompatible private key
7823 formats some of which are standard and some OpenSSL specific and
7824 require various evil hacks to allow partial transparent handling and
7825 even then it doesn't work with DER formats. Given the option anything
7826 other than PKCS#8 should be dumped: but the other formats have to
7827 stay in the name of compatibility.
7829 With public keys and the benefit of hindsight one standard format
7830 is used which works with EVP_PKEY, RSA or DSA structures: though
7831 it clearly returns an error if you try to read the wrong kind of key.
7833 Added a -pubkey option to the 'x509' utility to output the public key.
7834 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7835 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7836 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7837 that do the same as the EVP_PKEY_assign_*() except they up the
7838 reference count of the added key (they don't "swallow" the
7842 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7843 CRLs would fail if the file contained no certificates or no CRLs:
7844 added a new function to read in both types and return the number
7845 read: this means that if none are read it will be an error. The
7846 DER versions of the certificate and CRL reader would always fail
7847 because it isn't possible to mix certificates and CRLs in DER format
7848 without choking one or the other routine. Changed this to just read
7849 a certificate: this is the best we can do. Also modified the code
7850 in apps/verify.c to take notice of return codes: it was previously
7851 attempting to read in certificates from NULL pointers and ignoring
7852 any errors: this is one reason why the cert and CRL reader seemed
7853 to work. It doesn't check return codes from the default certificate
7854 routines: these may well fail if the certificates aren't installed.
7857 *) Code to support otherName option in GeneralName.
7860 *) First update to verify code. Change the verify utility
7861 so it warns if it is passed a self signed certificate:
7862 for consistency with the normal behaviour. X509_verify
7863 has been modified to it will now verify a self signed
7864 certificate if *exactly* the same certificate appears
7865 in the store: it was previously impossible to trust a
7866 single self signed certificate. This means that:
7867 openssl verify ss.pem
7868 now gives a warning about a self signed certificate but
7869 openssl verify -CAfile ss.pem ss.pem
7873 *) For servers, store verify_result in SSL_SESSION data structure
7874 (and add it to external session representation).
7875 This is needed when client certificate verifications fails,
7876 but an application-provided verification callback (set by
7877 SSL_CTX_set_cert_verify_callback) allows accepting the session
7878 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7879 but returns 1): When the session is reused, we have to set
7880 ssl->verify_result to the appropriate error code to avoid
7882 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7884 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7885 case in PKCS7_dataInit() where the signed PKCS7 structure
7886 didn't contain any existing data because it was being created.
7887 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7889 *) Add a salt to the key derivation routines in enc.c. This
7890 forms the first 8 bytes of the encrypted file. Also add a
7891 -S option to allow a salt to be input on the command line.
7894 *) New function X509_cmp(). Oddly enough there wasn't a function
7895 to compare two certificates. We do this by working out the SHA1
7896 hash and comparing that. X509_cmp() will be needed by the trust
7900 *) SSL_get1_session() is like SSL_get_session(), but increments
7901 the reference count in the SSL_SESSION returned.
7902 [Geoff Thorpe <geoff@eu.c2.net>]
7904 *) Fix for 'req': it was adding a null to request attributes.
7905 Also change the X509_LOOKUP and X509_INFO code to handle
7906 certificate auxiliary information.
7909 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7913 *) Add the possibility to add extra information to the memory leak
7914 detecting output, to form tracebacks, showing from where each
7915 allocation was originated: CRYPTO_push_info("constant string") adds
7916 the string plus current file name and line number to a per-thread
7917 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7918 is like calling CYRPTO_pop_info() until the stack is empty.
7919 Also updated memory leak detection code to be multi-thread-safe.
7922 *) Add options -text and -noout to pkcs7 utility and delete the
7923 encryption options which never did anything. Update docs.
7926 *) Add options to some of the utilities to allow the pass phrase
7927 to be included on either the command line (not recommended on
7928 OSes like Unix) or read from the environment. Update the
7929 manpages and fix a few bugs.
7932 *) Add a few manpages for some of the openssl commands.
7935 *) Fix the -revoke option in ca. It was freeing up memory twice,
7936 leaking and not finding already revoked certificates.
7939 *) Extensive changes to support certificate auxiliary information.
7940 This involves the use of X509_CERT_AUX structure and X509_AUX
7941 functions. An X509_AUX function such as PEM_read_X509_AUX()
7942 can still read in a certificate file in the usual way but it
7943 will also read in any additional "auxiliary information". By
7944 doing things this way a fair degree of compatibility can be
7945 retained: existing certificates can have this information added
7946 using the new 'x509' options.
7948 Current auxiliary information includes an "alias" and some trust
7949 settings. The trust settings will ultimately be used in enhanced
7950 certificate chain verification routines: currently a certificate
7951 can only be trusted if it is self signed and then it is trusted
7955 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7956 The problem was that one of the replacement routines had not been working
7957 since SSLeay releases. For now the offending routine has been replaced
7958 with non-optimised assembler. Even so, this now gives around 95%
7959 performance improvement for 1024 bit RSA signs.
7962 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7963 handling. Most clients have the effective key size in bits equal to
7964 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7965 A few however don't do this and instead use the size of the decrypted key
7966 to determine the RC2 key length and the AlgorithmIdentifier to determine
7967 the effective key length. In this case the effective key length can still
7968 be 40 bits but the key length can be 168 bits for example. This is fixed
7969 by manually forcing an RC2 key into the EVP_PKEY structure because the
7970 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7971 the key length and effective key length are equal.
7974 *) Add a bunch of functions that should simplify the creation of
7975 X509_NAME structures. Now you should be able to do:
7976 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7977 and have it automatically work out the correct field type and fill in
7978 the structures. The more adventurous can try:
7979 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7980 and it will (hopefully) work out the correct multibyte encoding.
7983 *) Change the 'req' utility to use the new field handling and multibyte
7984 copy routines. Before the DN field creation was handled in an ad hoc
7985 way in req, ca, and x509 which was rather broken and didn't support
7986 BMPStrings or UTF8Strings. Since some software doesn't implement
7987 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7988 using the dirstring_type option. See the new comment in the default
7989 openssl.cnf for more info.
7992 *) Make crypto/rand/md_rand.c more robust:
7993 - Assure unique random numbers after fork().
7994 - Make sure that concurrent threads access the global counter and
7995 md serializably so that we never lose entropy in them
7996 or use exactly the same state in multiple threads.
7997 Access to the large state is not always serializable because
7998 the additional locking could be a performance killer, and
7999 md should be large enough anyway.
8002 *) New file apps/app_rand.c with commonly needed functionality
8003 for handling the random seed file.
8005 Use the random seed file in some applications that previously did not:
8007 dsaparam -genkey (which also ignored its '-rand' option),
8010 x509 (when signing).
8011 Except on systems with /dev/urandom, it is crucial to have a random
8012 seed file at least for key creation, DSA signing, and for DH exchanges;
8013 for RSA signatures we could do without one.
8015 gendh and gendsa (unlike genrsa) used to read only the first byte
8016 of each file listed in the '-rand' option. The function as previously
8017 found in genrsa is now in app_rand.c and is used by all programs
8018 that support '-rand'.
8021 *) In RAND_write_file, use mode 0600 for creating files;
8022 don't just chmod when it may be too late.
8025 *) Report an error from X509_STORE_load_locations
8026 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
8029 *) New function ASN1_mbstring_copy() this copies a string in either
8030 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
8031 into an ASN1_STRING type. A mask of permissible types is passed
8032 and it chooses the "minimal" type to use or an error if not type
8036 *) Add function equivalents to the various macros in asn1.h. The old
8037 macros are retained with an M_ prefix. Code inside the library can
8038 use the M_ macros. External code (including the openssl utility)
8039 should *NOT* in order to be "shared library friendly".
8042 *) Add various functions that can check a certificate's extensions
8043 to see if it usable for various purposes such as SSL client,
8044 server or S/MIME and CAs of these types. This is currently
8045 VERY EXPERIMENTAL but will ultimately be used for certificate chain
8046 verification. Also added a -purpose flag to x509 utility to
8047 print out all the purposes.
8050 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
8054 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
8055 for, obtain and decode and extension and obtain its critical flag.
8056 This allows all the necessary extension code to be handled in a
8057 single function call.
8060 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
8061 platforms. See crypto/rc4/rc4_enc.c for further details.
8064 *) New -noout option to asn1parse. This causes no output to be produced
8065 its main use is when combined with -strparse and -out to extract data
8066 from a file (which may not be in ASN.1 format).
8069 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
8070 when producing the local key id.
8071 [Richard Levitte <levitte@stacken.kth.se>]
8073 *) New option -dhparam in s_server. This allows a DH parameter file to be
8074 stated explicitly. If it is not stated then it tries the first server
8075 certificate file. The previous behaviour hard coded the filename
8079 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
8080 a public key to be input or output. For example:
8081 openssl rsa -in key.pem -pubout -out pubkey.pem
8082 Also added necessary DSA public key functions to handle this.
8085 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
8086 in the message. This was handled by allowing
8087 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
8088 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
8090 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
8091 to the end of the strings whereas this didn't. This would cause problems
8092 if strings read with d2i_ASN1_bytes() were later modified.
8093 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
8095 *) Fix for base64 decode bug. When a base64 bio reads only one line of
8096 data and it contains EOF it will end up returning an error. This is
8097 caused by input 46 bytes long. The cause is due to the way base64
8098 BIOs find the start of base64 encoded data. They do this by trying a
8099 trial decode on each line until they find one that works. When they
8100 do a flag is set and it starts again knowing it can pass all the
8101 data directly through the decoder. Unfortunately it doesn't reset
8102 the context it uses. This means that if EOF is reached an attempt
8103 is made to pass two EOFs through the context and this causes the
8104 resulting error. This can also cause other problems as well. As is
8105 usual with these problems it takes *ages* to find and the fix is
8106 trivial: move one line.
8107 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
8109 *) Ugly workaround to get s_client and s_server working under Windows. The
8110 old code wouldn't work because it needed to select() on sockets and the
8111 tty (for keypresses and to see if data could be written). Win32 only
8112 supports select() on sockets so we select() with a 1s timeout on the
8113 sockets and then see if any characters are waiting to be read, if none
8114 are present then we retry, we also assume we can always write data to
8115 the tty. This isn't nice because the code then blocks until we've
8116 received a complete line of data and it is effectively polling the
8117 keyboard at 1s intervals: however it's quite a bit better than not
8118 working at all :-) A dedicated Windows application might handle this
8119 with an event loop for example.
8122 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8123 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8124 will be called when RSA_sign() and RSA_verify() are used. This is useful
8125 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8126 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8127 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8128 This necessitated the support of an extra signature type NID_md5_sha1
8129 for SSL signatures and modifications to the SSL library to use it instead
8130 of calling RSA_public_decrypt() and RSA_private_encrypt().
8133 *) Add new -verify -CAfile and -CApath options to the crl program, these
8134 will lookup a CRL issuers certificate and verify the signature in a
8135 similar way to the verify program. Tidy up the crl program so it
8136 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8137 less strict. It will now permit CRL extensions even if it is not
8138 a V2 CRL: this will allow it to tolerate some broken CRLs.
8141 *) Initialize all non-automatic variables each time one of the openssl
8142 sub-programs is started (this is necessary as they may be started
8143 multiple times from the "OpenSSL>" prompt).
8144 [Lennart Bang, Bodo Moeller]
8146 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8147 removing all other RSA functionality (this is what NO_RSA does). This
8148 is so (for example) those in the US can disable those operations covered
8149 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8153 *) Non-copying interface to BIO pairs.
8154 (still largely untested)
8157 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8158 ASCII string. This was handled independently in various places before.
8161 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8162 UTF8 strings a character at a time.
8165 *) Use client_version from client hello to select the protocol
8166 (s23_srvr.c) and for RSA client key exchange verification
8167 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8170 *) Add various utility functions to handle SPKACs, these were previously
8171 handled by poking round in the structure internals. Added new function
8172 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8173 print, verify and generate SPKACs. Based on an original idea from
8174 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8177 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8180 *) Allow the config file extension section to be overwritten on the
8181 command line. Based on an original idea from Massimiliano Pala
8182 <madwolf@comune.modena.it>. The new option is called -extensions
8183 and can be applied to ca, req and x509. Also -reqexts to override
8184 the request extensions in req and -crlexts to override the crl extensions
8188 *) Add new feature to the SPKAC handling in ca. Now you can include
8189 the same field multiple times by preceding it by "XXXX." for example:
8192 this is the same syntax as used in the req config file.
8195 *) Allow certificate extensions to be added to certificate requests. These
8196 are specified in a 'req_extensions' option of the req section of the
8197 config file. They can be printed out with the -text option to req but
8198 are otherwise ignored at present.
8201 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8202 data read consists of only the final block it would not decrypted because
8203 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8204 A misplaced 'break' also meant the decrypted final block might not be
8205 copied until the next read.
8208 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8209 a few extra parameters to the DH structure: these will be useful if
8210 for example we want the value of 'q' or implement X9.42 DH.
8213 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8214 provides hooks that allow the default DSA functions or functions on a
8215 "per key" basis to be replaced. This allows hardware acceleration and
8216 hardware key storage to be handled without major modification to the
8217 library. Also added low level modexp hooks and CRYPTO_EX structure and
8218 associated functions.
8221 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8222 as "read only": it can't be written to and the buffer it points to will
8223 not be freed. Reading from a read only BIO is much more efficient than
8224 a normal memory BIO. This was added because there are several times when
8225 an area of memory needs to be read from a BIO. The previous method was
8226 to create a memory BIO and write the data to it, this results in two
8227 copies of the data and an O(n^2) reading algorithm. There is a new
8228 function BIO_new_mem_buf() which creates a read only memory BIO from
8229 an area of memory. Also modified the PKCS#7 routines to use read only
8233 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8234 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8235 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8236 but a retry condition occured while trying to read the rest.
8239 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8240 NID_pkcs7_encrypted by default: this was wrong since this should almost
8241 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8242 the encrypted data type: this is a more sensible place to put it and it
8243 allows the PKCS#12 code to be tidied up that duplicated this
8247 *) Changed obj_dat.pl script so it takes its input and output files on
8248 the command line. This should avoid shell escape redirection problems
8252 *) Initial support for certificate extension requests, these are included
8253 in things like Xenroll certificate requests. Included functions to allow
8254 extensions to be obtained and added.
8257 *) -crlf option to s_client and s_server for sending newlines as
8258 CRLF (as required by many protocols).
8261 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8263 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8264 [Ralf S. Engelschall]
8266 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8267 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8269 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8273 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8274 DH parameters/keys (q is lost during that conversion, but the resulting
8275 DH parameters contain its length).
8277 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8278 much faster than DH_generate_parameters (which creates parameters
8279 where p = 2*q + 1), and also the smaller q makes DH computations
8280 much more efficient (160-bit exponentiation instead of 1024-bit
8281 exponentiation); so this provides a convenient way to support DHE
8282 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8283 utter importance to use
8284 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8286 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8287 when such DH parameters are used, because otherwise small subgroup
8288 attacks may become possible!
8291 *) Avoid memory leak in i2d_DHparams.
8294 *) Allow the -k option to be used more than once in the enc program:
8295 this allows the same encrypted message to be read by multiple recipients.
8298 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8299 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8300 it will always use the numerical form of the OID, even if it has a short
8304 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8305 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8306 otherwise bn_mod_exp was called. In the case of hardware keys for example
8307 no private key components need be present and it might store extra data
8308 in the RSA structure, which cannot be accessed from bn_mod_exp.
8309 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8310 private key operations.
8313 *) Added support for SPARC Linux.
8316 *) pem_password_cb function type incompatibly changed from
8317 typedef int pem_password_cb(char *buf, int size, int rwflag);
8319 ....(char *buf, int size, int rwflag, void *userdata);
8320 so that applications can pass data to their callbacks:
8321 The PEM[_ASN1]_{read,write}... functions and macros now take an
8322 additional void * argument, which is just handed through whenever
8323 the password callback is called.
8324 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8326 New function SSL_CTX_set_default_passwd_cb_userdata.
8328 Compatibility note: As many C implementations push function arguments
8329 onto the stack in reverse order, the new library version is likely to
8330 interoperate with programs that have been compiled with the old
8331 pem_password_cb definition (PEM_whatever takes some data that
8332 happens to be on the stack as its last argument, and the callback
8333 just ignores this garbage); but there is no guarantee whatsoever that
8336 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8337 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8338 problems not only on Windows, but also on some Unix platforms.
8339 To avoid problematic command lines, these definitions are now in an
8340 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8341 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8344 *) MIPS III/IV assembler module is reimplemented.
8347 *) More DES library cleanups: remove references to srand/rand and
8348 delete an unused file.
8351 *) Add support for the the free Netwide assembler (NASM) under Win32,
8352 since not many people have MASM (ml) and it can be hard to obtain.
8353 This is currently experimental but it seems to work OK and pass all
8354 the tests. Check out INSTALL.W32 for info.
8357 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8358 without temporary keys kept an extra copy of the server key,
8359 and connections with temporary keys did not free everything in case
8363 *) New function RSA_check_key and new openssl rsa option -check
8364 for verifying the consistency of RSA keys.
8365 [Ulf Moeller, Bodo Moeller]
8367 *) Various changes to make Win32 compile work:
8368 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8369 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8370 comparison" warnings.
8371 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8374 *) Add a debugging option to PKCS#5 v2 key generation function: when
8375 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8376 derived keys are printed to stderr.
8379 *) Copy the flags in ASN1_STRING_dup().
8380 [Roman E. Pavlov <pre@mo.msk.ru>]
8382 *) The x509 application mishandled signing requests containing DSA
8383 keys when the signing key was also DSA and the parameters didn't match.
8385 It was supposed to omit the parameters when they matched the signing key:
8386 the verifying software was then supposed to automatically use the CA's
8387 parameters if they were absent from the end user certificate.
8389 Omitting parameters is no longer recommended. The test was also
8390 the wrong way round! This was probably due to unusual behaviour in
8391 EVP_cmp_parameters() which returns 1 if the parameters match.
8392 This meant that parameters were omitted when they *didn't* match and
8393 the certificate was useless. Certificates signed with 'ca' didn't have
8395 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8397 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8398 The interface is as follows:
8399 Applications can use
8400 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8401 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8402 "off" is now the default.
8403 The library internally uses
8404 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8405 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8406 to disable memory-checking temporarily.
8408 Some inconsistent states that previously were possible (and were
8409 even the default) are now avoided.
8411 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8412 with each memory chunk allocated; this is occasionally more helpful
8413 than just having a counter.
8415 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8417 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8421 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8422 which largely parallels "options", but is for changing API behaviour,
8423 whereas "options" are about protocol behaviour.
8424 Initial "mode" flags are:
8426 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8427 a single record has been written.
8428 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8429 retries use the same buffer location.
8430 (But all of the contents must be
8434 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8437 *) Fix problems with no-hmac etc.
8438 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8440 *) New functions RSA_get_default_method(), RSA_set_method() and
8441 RSA_get_method(). These allows replacement of RSA_METHODs without having
8442 to mess around with the internals of an RSA structure.
8445 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8446 Also really enable memory leak checks in openssl.c and in some
8448 [Chad C. Mulligan, Bodo Moeller]
8450 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8451 up the length of negative integers. This has now been simplified to just
8452 store the length when it is first determined and use it later, rather
8453 than trying to keep track of where data is copied and updating it to
8455 [Steve Henson, reported by Brien Wheeler
8456 <bwheeler@authentica-security.com>]
8458 *) Add a new function PKCS7_signatureVerify. This allows the verification
8459 of a PKCS#7 signature but with the signing certificate passed to the
8460 function itself. This contrasts with PKCS7_dataVerify which assumes the
8461 certificate is present in the PKCS#7 structure. This isn't always the
8462 case: certificates can be omitted from a PKCS#7 structure and be
8463 distributed by "out of band" means (such as a certificate database).
8466 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8467 function prototypes in pem.h, also change util/mkdef.pl to add the
8468 necessary function names.
8471 *) mk1mf.pl (used by Windows builds) did not properly read the
8472 options set by Configure in the top level Makefile, and Configure
8473 was not even able to write more than one option correctly.
8474 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8477 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8478 file to be loaded from a BIO or FILE pointer. The BIO version will
8479 for example allow memory BIOs to contain config info.
8482 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8483 Whoever hopes to achieve shared-library compatibility across versions
8484 must use this, not the compile-time macro.
8485 (Exercise 0.9.4: Which is the minimum library version required by
8487 Note: All this applies only to multi-threaded programs, others don't
8491 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8492 through a BIO pair triggered the default case, i.e.
8493 SSLerr(...,SSL_R_UNKNOWN_STATE).
8496 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8497 can use the SSL library even if none of the specific BIOs is
8501 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8502 for the encoded length.
8503 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8505 *) Add initial documentation of the X509V3 functions.
8508 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8509 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8510 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8511 secure PKCS#8 private key format with a high iteration count.
8514 *) Fix determination of Perl interpreter: A perl or perl5
8515 _directory_ in $PATH was also accepted as the interpreter.
8516 [Ralf S. Engelschall]
8518 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8519 wrong with it but it was very old and did things like calling
8520 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8524 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8525 to use the new extension code.
8528 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8529 with macros. This should make it easier to change their form, add extra
8530 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8534 *) Add to configuration table a new entry that can specify an alternative
8535 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8536 according to Mark Crispin <MRC@Panda.COM>.
8540 *) DES CBC did not update the IV. Weird.
8543 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8544 Changing the behaviour of the former might break existing programs --
8545 where IV updating is needed, des_ncbc_encrypt can be used.
8548 *) When bntest is run from "make test" it drives bc to check its
8549 calculations, as well as internally checking them. If an internal check
8550 fails, it needs to cause bc to give a non-zero result or make test carries
8551 on without noticing the failure. Fixed.
8554 *) DES library cleanups.
8557 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8558 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8559 ciphers. NOTE: although the key derivation function has been verified
8560 against some published test vectors it has not been extensively tested
8561 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8565 *) Instead of "mkdir -p", which is not fully portable, use new
8566 Perl script "util/mkdir-p.pl".
8569 *) Rewrite the way password based encryption (PBE) is handled. It used to
8570 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8571 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8572 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8573 the 'parameter' field of the AlgorithmIdentifier is passed to the
8574 underlying key generation function so it must do its own ASN1 parsing.
8575 This has also changed the EVP_PBE_CipherInit() function which now has a
8576 'parameter' argument instead of literal salt and iteration count values
8577 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8580 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8581 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8582 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8583 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8584 value was just used as a "magic string" and not used directly its
8585 value doesn't matter.
8588 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8592 *) "linux-sparc64" configuration (ultrapenguin).
8593 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8594 "linux-sparc" configuration.
8595 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8597 *) config now generates no-xxx options for missing ciphers.
8600 *) Support the EBCDIC character set (work in progress).
8601 File ebcdic.c not yet included because it has a different license.
8602 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8604 *) Support BS2000/OSD-POSIX.
8605 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8607 *) Make callbacks for key generation use void * instead of char *.
8610 *) Make S/MIME samples compile (not yet tested).
8613 *) Additional typesafe stacks.
8616 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8620 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8622 *) New configuration variant "sco5-gcc".
8624 *) Updated some demos.
8625 [Sean O Riordain, Wade Scholine]
8627 *) Add missing BIO_free at exit of pkcs12 application.
8630 *) Fix memory leak in conf.c.
8633 *) Updates for Win32 to assembler version of MD5.
8636 *) Set #! path to perl in apps/der_chop to where we found it
8637 instead of using a fixed path.
8640 *) SHA library changes for irix64-mips4-cc.
8643 *) Improvements for VMS support.
8647 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8649 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8650 This also avoids the problems with SC4.2 and unpatched SC5.
8651 [Andy Polyakov <appro@fy.chalmers.se>]
8653 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8654 These are required because of the typesafe stack would otherwise break
8655 existing code. If old code used a structure member which used to be STACK
8656 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8657 sk_num or sk_value it would produce an error because the num, data members
8658 are not present in STACK_OF. Now it just produces a warning. sk_set
8659 replaces the old method of assigning a value to sk_value
8660 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8661 that does this will no longer work (and should use sk_set instead) but
8662 this could be regarded as a "questionable" behaviour anyway.
8665 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8666 correctly handle encrypted S/MIME data.
8669 *) Change type of various DES function arguments from des_cblock
8670 (which means, in function argument declarations, pointer to char)
8671 to des_cblock * (meaning pointer to array with 8 char elements),
8672 which allows the compiler to do more typechecking; it was like
8673 that back in SSLeay, but with lots of ugly casts.
8675 Introduce new type const_des_cblock.
8678 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8679 problems: find RecipientInfo structure that matches recipient certificate
8680 and initialise the ASN1 structures properly based on passed cipher.
8683 *) Belatedly make the BN tests actually check the results.
8686 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8687 to and from BNs: it was completely broken. New compilation option
8688 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8689 key elements as negative integers.
8692 *) Reorganize and speed up MD5.
8693 [Andy Polyakov <appro@fy.chalmers.se>]
8696 [Richard Levitte <richard@levitte.org>]
8698 *) New option -out to asn1parse to allow the parsed structure to be
8699 output to a file. This is most useful when combined with the -strparse
8700 option to examine the output of things like OCTET STRINGS.
8703 *) Make SSL library a little more fool-proof by not requiring any longer
8704 that SSL_set_{accept,connect}_state be called before
8705 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8706 in many applications because usually everything *appeared* to work as
8707 intended anyway -- now it really works as intended).
8710 *) Move openssl.cnf out of lib/.
8713 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8714 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8715 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8716 [Ralf S. Engelschall]
8718 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8719 handle PKCS#7 enveloped data properly.
8720 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8722 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8723 copying pointers. The cert_st handling is changed by this in
8724 various ways (and thus what used to be known as ctx->default_cert
8725 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8726 any longer when s->cert does not give us what we need).
8727 ssl_cert_instantiate becomes obsolete by this change.
8728 As soon as we've got the new code right (possibly it already is?),
8729 we have solved a couple of bugs of the earlier code where s->cert
8730 was used as if it could not have been shared with other SSL structures.
8732 Note that using the SSL API in certain dirty ways now will result
8733 in different behaviour than observed with earlier library versions:
8734 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8735 does not influence s as it used to.
8737 In order to clean up things more thoroughly, inside SSL_SESSION
8738 we don't use CERT any longer, but a new structure SESS_CERT
8739 that holds per-session data (if available); currently, this is
8740 the peer's certificate chain and, for clients, the server's certificate
8741 and temporary key. CERT holds only those values that can have
8742 meaningful defaults in an SSL_CTX.
8745 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8746 from the internal representation. Various PKCS#7 fixes: remove some
8747 evil casts and set the enc_dig_alg field properly based on the signing
8751 *) Allow PKCS#12 password to be set from the command line or the
8752 environment. Let 'ca' get its config file name from the environment
8753 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8757 *) Allow certificate policies extension to use an IA5STRING for the
8758 organization field. This is contrary to the PKIX definition but
8759 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8763 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8764 without disallowing inline assembler and the like for non-pedantic builds.
8767 *) Support Borland C++ builder.
8768 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8773 *) SHA-1 cleanups and performance enhancements.
8774 [Andy Polyakov <appro@fy.chalmers.se>]
8776 *) Sparc v8plus assembler for the bignum library.
8777 [Andy Polyakov <appro@fy.chalmers.se>]
8779 *) Accept any -xxx and +xxx compiler options in Configure.
8782 *) Update HPUX configuration.
8785 *) Add missing sk_<type>_unshift() function to safestack.h
8786 [Ralf S. Engelschall]
8788 *) New function SSL_CTX_use_certificate_chain_file that sets the
8789 "extra_cert"s in addition to the certificate. (This makes sense
8790 only for "PEM" format files, as chains as a whole are not
8794 *) Support verify_depth from the SSL API.
8795 x509_vfy.c had what can be considered an off-by-one-error:
8796 Its depth (which was not part of the external interface)
8797 was actually counting the number of certificates in a chain;
8798 now it really counts the depth.
8801 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8802 instead of X509err, which often resulted in confusing error
8803 messages since the error codes are not globally unique
8804 (e.g. an alleged error in ssl3_accept when a certificate
8805 didn't match the private key).
8807 *) New function SSL_CTX_set_session_id_context that allows to set a default
8808 value (so that you don't need SSL_set_session_id_context for each
8809 connection using the SSL_CTX).
8812 *) OAEP decoding bug fix.
8815 *) Support INSTALL_PREFIX for package builders, as proposed by
8819 *) New Configure options "threads" and "no-threads". For systems
8820 where the proper compiler options are known (currently Solaris
8821 and Linux), "threads" is the default.
8824 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8827 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8828 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8829 such as /usr/local/bin.
8832 *) "make linux-shared" to build shared libraries.
8833 [Niels Poppe <niels@netbox.org>]
8835 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8838 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8839 extension adding in x509 utility.
8842 *) Remove NOPROTO sections and error code comments.
8845 *) Partial rewrite of the DEF file generator to now parse the ANSI
8849 *) New Configure options --prefix=DIR and --openssldir=DIR.
8852 *) Complete rewrite of the error code script(s). It is all now handled
8853 by one script at the top level which handles error code gathering,
8854 header rewriting and C source file generation. It should be much better
8855 than the old method: it now uses a modified version of Ulf's parser to
8856 read the ANSI prototypes in all header files (thus the old K&R definitions
8857 aren't needed for error creation any more) and do a better job of
8858 translating function codes into names. The old 'ASN1 error code imbedded
8859 in a comment' is no longer necessary and it doesn't use .err files which
8860 have now been deleted. Also the error code call doesn't have to appear all
8861 on one line (which resulted in some large lines...).
8864 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8867 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8868 0 (which usually indicates a closed connection), but continue reading.
8871 *) Fix some race conditions.
8874 *) Add support for CRL distribution points extension. Add Certificate
8875 Policies and CRL distribution points documentation.
8878 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8881 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8882 8 of keying material. Merlin has also confirmed interop with this fix
8883 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8884 [Merlin Hughes <merlin@baltimore.ie>]
8886 *) Fix lots of warnings.
8887 [Richard Levitte <levitte@stacken.kth.se>]
8889 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8890 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8891 [Richard Levitte <levitte@stacken.kth.se>]
8893 *) Fix problems with sizeof(long) == 8.
8894 [Andy Polyakov <appro@fy.chalmers.se>]
8896 *) Change functions to ANSI C.
8899 *) Fix typos in error codes.
8900 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8902 *) Remove defunct assembler files from Configure.
8905 *) SPARC v8 assembler BIGNUM implementation.
8906 [Andy Polyakov <appro@fy.chalmers.se>]
8908 *) Support for Certificate Policies extension: both print and set.
8909 Various additions to support the r2i method this uses.
8912 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8913 return a const string when you are expecting an allocated buffer.
8916 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8917 types DirectoryString and DisplayText.
8920 *) Add code to allow r2i extensions to access the configuration database,
8921 add an LHASH database driver and add several ctx helper functions.
8924 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8925 fail when they extended the size of a BIGNUM.
8928 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8929 support typesafe stack.
8932 *) Fix typo in SSL_[gs]et_options().
8933 [Nils Frostberg <nils@medcom.se>]
8935 *) Delete various functions and files that belonged to the (now obsolete)
8936 old X509V3 handling code.
8939 *) New Configure option "rsaref".
8942 *) Don't auto-generate pem.h.
8945 *) Introduce type-safe ASN.1 SETs.
8948 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8949 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8951 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8952 that links with OpenSSL (well at least cause lots of warnings), but fear
8953 not: the conversion is trivial, and it eliminates loads of evil casts. A
8954 few STACKed things have been converted already. Feel free to convert more.
8955 In the fullness of time, I'll do away with the STACK type altogether.
8958 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8959 specified in <certfile> by updating the entry in the index.txt file.
8960 This way one no longer has to edit the index.txt file manually for
8961 revoking a certificate. The -revoke option does the gory details now.
8962 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8964 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8965 `-text' option at all and this way the `-noout -text' combination was
8966 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8967 [Ralf S. Engelschall]
8969 *) Make sure a corresponding plain text error message exists for the
8970 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8971 verify callback function determined that a certificate was revoked.
8972 [Ralf S. Engelschall]
8974 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8975 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8976 all available cipers including rc5, which was forgotten until now.
8977 In order to let the testing shell script know which algorithms
8978 are available, a new (up to now undocumented) command
8979 "openssl list-cipher-commands" is used.
8982 *) Bugfix: s_client occasionally would sleep in select() when
8983 it should have checked SSL_pending() first.
8986 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8987 the raw DSA values prior to ASN.1 encoding.
8990 *) Tweaks to Configure
8991 [Niels Poppe <niels@netbox.org>]
8993 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8997 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
9000 *) New config option to avoid instructions that are illegal on the 80386.
9001 The default code is faster, but requires at least a 486.
9004 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
9005 SSL2_SERVER_VERSION (not used at all) macros, which are now the
9006 same as SSL2_VERSION anyway.
9009 *) New "-showcerts" option for s_client.
9012 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
9013 application. Various cleanups and fixes.
9016 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
9017 modify error routines to work internally. Add error codes and PBE init
9018 to library startup routines.
9021 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
9022 packing functions to asn1 and evp. Changed function names and error
9023 codes along the way.
9026 *) PKCS12 integration: and so it begins... First of several patches to
9027 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
9028 objects to objects.h
9031 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
9032 and display support for Thawte strong extranet extension.
9035 *) Add LinuxPPC support.
9036 [Jeff Dubrule <igor@pobox.org>]
9038 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
9039 bn_div_words in alpha.s.
9040 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
9042 *) Make sure the RSA OAEP test is skipped under -DRSAref because
9043 OAEP isn't supported when OpenSSL is built with RSAref.
9044 [Ulf Moeller <ulf@fitug.de>]
9046 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
9047 so they no longer are missing under -DNOPROTO.
9048 [Soren S. Jorvang <soren@t.dk>]
9051 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
9053 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
9054 doesn't work when the session is reused. Coming soon!
9057 *) Fix a security hole, that allows sessions to be reused in the wrong
9058 context thus bypassing client cert protection! All software that uses
9059 client certs and session caches in multiple contexts NEEDS PATCHING to
9060 allow session reuse! A fuller solution is in the works.
9061 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
9063 *) Some more source tree cleanups (removed obsolete files
9064 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
9065 permission on "config" script to be executable) and a fix for the INSTALL
9067 [Ulf Moeller <ulf@fitug.de>]
9069 *) Remove some legacy and erroneous uses of malloc, free instead of
9071 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
9073 *) Make rsa_oaep_test return non-zero on error.
9074 [Ulf Moeller <ulf@fitug.de>]
9076 *) Add support for native Solaris shared libraries. Configure
9077 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
9078 if someone would make that last step automatic.
9079 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
9081 *) ctx_size was not built with the right compiler during "make links". Fixed.
9084 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
9085 except NULL ciphers". This means the default cipher list will no longer
9086 enable NULL ciphers. They need to be specifically enabled e.g. with
9087 the string "DEFAULT:eNULL".
9090 *) Fix to RSA private encryption routines: if p < q then it would
9091 occasionally produce an invalid result. This will only happen with
9092 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
9095 *) Be less restrictive and allow also `perl util/perlpath.pl
9096 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
9097 because this way one can also use an interpreter named `perl5' (which is
9098 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
9099 installed as `perl').
9100 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9102 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
9103 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9105 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
9106 advapi32.lib to Win32 build and change the pem test comparision
9107 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
9108 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
9109 and crypto/des/ede_cbcm_enc.c.
9112 *) DES quad checksum was broken on big-endian architectures. Fixed.
9115 *) Comment out two functions in bio.h that aren't implemented. Fix up the
9116 Win32 test batch file so it (might) work again. The Win32 test batch file
9117 is horrible: I feel ill....
9120 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
9121 in e_os.h. Audit of header files to check ANSI and non ANSI
9122 sections: 10 functions were absent from non ANSI section and not exported
9123 from Windows DLLs. Fixed up libeay.num for new functions.
9126 *) Make `openssl version' output lines consistent.
9127 [Ralf S. Engelschall]
9129 *) Fix Win32 symbol export lists for BIO functions: Added
9130 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9131 to ms/libeay{16,32}.def.
9132 [Ralf S. Engelschall]
9134 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9135 fine under Unix and passes some trivial tests I've now added. But the
9136 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9137 added to make sure no one expects that this stuff really works in the
9138 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9139 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9141 [Ralf S. Engelschall]
9143 *) Fix the generation of two part addresses in perl.
9144 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9146 *) Add config entry for Linux on MIPS.
9147 [John Tobey <jtobey@channel1.com>]
9149 *) Make links whenever Configure is run, unless we are on Windoze.
9152 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9153 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9157 *) Add a useful kludge to allow package maintainers to specify compiler and
9158 other platforms details on the command line without having to patch the
9159 Configure script everytime: One now can use ``perl Configure
9160 <id>:<details>'', i.e. platform ids are allowed to have details appended
9161 to them (seperated by colons). This is treated as there would be a static
9162 pre-configured entry in Configure's %table under key <id> with value
9163 <details> and ``perl Configure <id>'' is called. So, when you want to
9164 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9165 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9166 now, which overrides the FreeBSD-elf entry on-the-fly.
9167 [Ralf S. Engelschall]
9169 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9172 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9173 on the `perl Configure ...' command line. This way one can compile
9174 OpenSSL libraries with Position Independent Code (PIC) which is needed
9175 for linking it into DSOs.
9176 [Ralf S. Engelschall]
9178 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9182 *) Cleaned up the LICENSE document: The official contact for any license
9183 questions now is the OpenSSL core team under openssl-core@openssl.org.
9184 And add a paragraph about the dual-license situation to make sure people
9185 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9186 to the OpenSSL toolkit.
9187 [Ralf S. Engelschall]
9189 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9190 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9191 Additonally cleaned up the `make links' target: Remove unnecessary
9192 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9193 to speed processing and no longer clutter the display with confusing
9194 stuff. Instead only the actually done links are displayed.
9195 [Ralf S. Engelschall]
9197 *) Permit null encryption ciphersuites, used for authentication only. It used
9198 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9199 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9203 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9204 signed attributes when verifying signatures (this would break them),
9205 the detached data encoding was wrong and public keys obtained using
9206 X509_get_pubkey() weren't freed.
9209 *) Add text documentation for the BUFFER functions. Also added a work around
9210 to a Win95 console bug. This was triggered by the password read stuff: the
9211 last character typed gets carried over to the next fread(). If you were
9212 generating a new cert request using 'req' for example then the last
9213 character of the passphrase would be CR which would then enter the first
9217 *) Added the new `Includes OpenSSL Cryptography Software' button as
9218 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9219 button and can be used by applications based on OpenSSL to show the
9220 relationship to the OpenSSL project.
9221 [Ralf S. Engelschall]
9223 *) Remove confusing variables in function signatures in files
9224 ssl/ssl_lib.c and ssl/ssl.h.
9225 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9227 *) Don't install bss_file.c under PREFIX/include/
9228 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9230 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9231 functions that return function pointers and has support for NT specific
9232 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9233 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9234 unsigned to signed types: this was killing the Win32 compile.
9237 *) Add new certificate file to stack functions,
9238 SSL_add_dir_cert_subjects_to_stack() and
9239 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9240 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9241 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9242 This means that Apache-SSL and similar packages don't have to mess around
9243 to add as many CAs as they want to the preferred list.
9246 *) Experiment with doxygen documentation. Currently only partially applied to
9248 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9249 openssl.doxy as the configuration file.
9252 *) Get rid of remaining C++-style comments which strict C compilers hate.
9253 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9255 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9256 compiled in by default: it has problems with large keys.
9259 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9260 DH private keys and/or callback functions which directly correspond to
9261 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9262 is needed for applications which have to configure certificates on a
9263 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9265 For the RSA certificate situation is makes no difference, but
9266 for the DSA certificate situation this fixes the "no shared cipher"
9267 problem where the OpenSSL cipher selection procedure failed because the
9268 temporary keys were not overtaken from the context and the API provided
9269 no way to reconfigure them.
9270 The new functions now let applications reconfigure the stuff and they
9271 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9272 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9273 non-public-API function ssl_cert_instantiate() is used as a helper
9274 function and also to reduce code redundancy inside ssl_rsa.c.
9275 [Ralf S. Engelschall]
9277 *) Move s_server -dcert and -dkey options out of the undocumented feature
9278 area because they are useful for the DSA situation and should be
9279 recognized by the users.
9280 [Ralf S. Engelschall]
9282 *) Fix the cipher decision scheme for export ciphers: the export bits are
9283 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9284 SSL_EXP_MASK. So, the original variable has to be used instead of the
9285 already masked variable.
9286 [Richard Levitte <levitte@stacken.kth.se>]
9288 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9289 [Richard Levitte <levitte@stacken.kth.se>]
9291 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9292 from `int' to `unsigned int' because it's a length and initialized by
9293 EVP_DigestFinal() which expects an `unsigned int *'.
9294 [Richard Levitte <levitte@stacken.kth.se>]
9296 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9297 script. Instead use the usual Shell->Perl transition trick.
9298 [Ralf S. Engelschall]
9300 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9301 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9302 -noout -modulus' as it's already the case for `openssl rsa -noout
9303 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9304 currently the public key is printed (a decision which was already done by
9305 `openssl dsa -modulus' in the past) which serves a similar purpose.
9306 Additionally the NO_RSA no longer completely removes the whole -modulus
9307 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9309 [Ralf S. Engelschall]
9311 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9312 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9313 [Arne Ansper <arne@ats.cyber.ee>]
9315 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9316 to be added. Now both 'req' and 'ca' can use new objects defined in the
9320 *) Add cool BIO that does syslog (or event log on NT).
9321 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9323 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9324 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9325 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9326 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9329 *) Add preliminary config info for new extension code.
9332 *) Make RSA_NO_PADDING really use no padding.
9333 [Ulf Moeller <ulf@fitug.de>]
9335 *) Generate errors when private/public key check is done.
9338 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9339 for some CRL extensions and new objects added.
9342 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9343 key usage extension and fuller support for authority key id.
9346 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9347 padding method for RSA, which is recommended for new applications in PKCS
9348 #1 v2.0 (RFC 2437, October 1998).
9349 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9350 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9351 against Bleichbacher's attack on RSA.
9352 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9355 *) Updates to the new SSL compression code
9356 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9358 *) Fix so that the version number in the master secret, when passed
9359 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9360 (because the server will not accept higher), that the version number
9361 is 0x03,0x01, not 0x03,0x00
9362 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9364 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9365 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9366 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9369 *) Support for RAW extensions where an arbitrary extension can be
9370 created by including its DER encoding. See apps/openssl.cnf for
9374 *) Make sure latest Perl versions don't interpret some generated C array
9375 code as Perl array code in the crypto/err/err_genc.pl script.
9376 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9378 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9379 not many people have the assembler. Various Win32 compilation fixes and
9380 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9384 *) Modify configure script 'Configure' to automatically create crypto/date.h
9385 file under Win32 and also build pem.h from pem.org. New script
9386 util/mkfiles.pl to create the MINFO file on environments that can't do a
9387 'make files': perl util/mkfiles.pl >MINFO should work.
9390 *) Major rework of DES function declarations, in the pursuit of correctness
9391 and purity. As a result, many evil casts evaporated, and some weirdness,
9392 too. You may find this causes warnings in your code. Zapping your evil
9393 casts will probably fix them. Mostly.
9396 *) Fix for a typo in asn1.h. Bug fix to object creation script
9397 obj_dat.pl. It considered a zero in an object definition to mean
9398 "end of object": none of the objects in objects.h have any zeros
9399 so it wasn't spotted.
9400 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9402 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9403 Masking (CBCM). In the absence of test vectors, the best I have been able
9404 to do is check that the decrypt undoes the encrypt, so far. Send me test
9405 vectors if you have them.
9408 *) Correct calculation of key length for export ciphers (too much space was
9409 allocated for null ciphers). This has not been tested!
9412 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9413 message is now correct (it understands "crypto" and "ssl" on its
9414 command line). There is also now an "update" option. This will update
9415 the util/ssleay.num and util/libeay.num files with any new functions.
9417 perl util/mkdef.pl crypto ssl update
9418 it will update them.
9421 *) Overhauled the Perl interface (perl/*):
9422 - ported BN stuff to OpenSSL's different BN library
9423 - made the perl/ source tree CVS-aware
9424 - renamed the package from SSLeay to OpenSSL (the files still contain
9425 their history because I've copied them in the repository)
9426 - removed obsolete files (the test scripts will be replaced
9427 by better Test::Harness variants in the future)
9428 [Ralf S. Engelschall]
9430 *) First cut for a very conservative source tree cleanup:
9431 1. merge various obsolete readme texts into doc/ssleay.txt
9432 where we collect the old documents and readme texts.
9433 2. remove the first part of files where I'm already sure that we no
9434 longer need them because of three reasons: either they are just temporary
9435 files which were left by Eric or they are preserved original files where
9436 I've verified that the diff is also available in the CVS via "cvs diff
9437 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9438 the crypto/md/ stuff).
9439 [Ralf S. Engelschall]
9441 *) More extension code. Incomplete support for subject and issuer alt
9442 name, issuer and authority key id. Change the i2v function parameters
9443 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9444 what that's for :-) Fix to ASN1 macro which messed up
9445 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9448 *) Preliminary support for ENUMERATED type. This is largely copied from the
9452 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9453 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9455 *) Make sure `make rehash' target really finds the `openssl' program.
9456 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9458 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9459 like to hear about it if this slows down other processors.
9462 *) Add CygWin32 platform information to Configure script.
9463 [Alan Batie <batie@aahz.jf.intel.com>]
9465 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9466 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9468 *) New program nseq to manipulate netscape certificate sequences
9471 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9475 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9476 but the BN code had some problems that would cause failures when
9477 doing certificate verification and some other functions.
9478 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9480 *) Add ASN1 and PEM code to support netscape certificate sequences.
9483 *) Add ASN1 and PEM code to support netscape certificate sequences.
9486 *) Add several PKIX and private extended key usage OIDs.
9489 *) Modify the 'ca' program to handle the new extension code. Modify
9490 openssl.cnf for new extension format, add comments.
9493 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9494 and add a sample to openssl.cnf so req -x509 now adds appropriate
9498 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9499 error code, add initial support to X509_print() and x509 application.
9502 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9503 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9504 stuff is currently isolated and isn't even compiled yet.
9507 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9508 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9509 Removed the versions check from X509 routines when loading extensions:
9510 this allows certain broken certificates that don't set the version
9511 properly to be processed.
9514 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9515 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9516 can still be regenerated with "make depend".
9519 *) Spelling mistake in C version of CAST-128.
9520 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9522 *) Changes to the error generation code. The perl script err-code.pl
9523 now reads in the old error codes and retains the old numbers, only
9524 adding new ones if necessary. It also only changes the .err files if new
9525 codes are added. The makefiles have been modified to only insert errors
9526 when needed (to avoid needlessly modifying header files). This is done
9527 by only inserting errors if the .err file is newer than the auto generated
9528 C file. To rebuild all the error codes from scratch (the old behaviour)
9529 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9530 or delete all the .err files.
9533 *) CAST-128 was incorrectly implemented for short keys. The C version has
9534 been fixed, but is untested. The assembler versions are also fixed, but
9535 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9536 to regenerate it if needed.
9537 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9538 Hagino <itojun@kame.net>]
9540 *) File was opened incorrectly in randfile.c.
9541 [Ulf Möller <ulf@fitug.de>]
9543 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9544 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9545 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9546 al: it's just almost always a UTCTime. Note this patch adds new error
9547 codes so do a "make errors" if there are problems.
9550 *) Correct Linux 1 recognition in config.
9551 [Ulf Möller <ulf@fitug.de>]
9553 *) Remove pointless MD5 hash when using DSA keys in ca.
9554 [Anonymous <nobody@replay.com>]
9556 *) Generate an error if given an empty string as a cert directory. Also
9557 generate an error if handed NULL (previously returned 0 to indicate an
9558 error, but didn't set one).
9559 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9561 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9564 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9565 parameters. This was causing a warning which killed off the Win32 compile.
9568 *) Remove C++ style comments from crypto/bn/bn_local.h.
9569 [Neil Costigan <neil.costigan@celocom.com>]
9571 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9572 based on a text string, looking up short and long names and finally
9573 "dot" format. The "dot" format stuff didn't work. Added new function
9574 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9575 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9576 OID is not part of the table.
9579 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9580 X509_LOOKUP_by_alias().
9583 *) Sort openssl functions by name.
9586 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9587 encryption from sample DSA keys (in case anyone is interested the password
9591 *) Make _all_ *_free functions accept a NULL pointer.
9592 [Frans Heymans <fheymans@isaserver.be>]
9594 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9596 [Anonymous <nobody@replay.com>]
9598 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9599 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9601 *) Don't blow it for numeric -newkey arguments to apps/req.
9602 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9604 *) Temp key "for export" tests were wrong in s3_srvr.c.
9605 [Anonymous <nobody@replay.com>]
9607 *) Add prototype for temp key callback functions
9608 SSL_CTX_set_tmp_{rsa,dh}_callback().
9611 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9612 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9615 *) X509_name_add_entry() freed the wrong thing after an error.
9616 [Arne Ansper <arne@ats.cyber.ee>]
9618 *) rsa_eay.c would attempt to free a NULL context.
9619 [Arne Ansper <arne@ats.cyber.ee>]
9621 *) BIO_s_socket() had a broken should_retry() on Windoze.
9622 [Arne Ansper <arne@ats.cyber.ee>]
9624 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9625 [Arne Ansper <arne@ats.cyber.ee>]
9627 *) Make sure the already existing X509_STORE->depth variable is initialized
9628 in X509_STORE_new(), but document the fact that this variable is still
9629 unused in the certificate verification process.
9630 [Ralf S. Engelschall]
9632 *) Fix the various library and apps files to free up pkeys obtained from
9633 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9636 *) Fix reference counting in X509_PUBKEY_get(). This makes
9637 demos/maurice/example2.c work, amongst others, probably.
9638 [Steve Henson and Ben Laurie]
9640 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9641 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9642 are no longer created. This way we have a single and consistent command
9643 line interface `openssl <command>', similar to `cvs <command>'.
9644 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9646 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9647 BIT STRING wrapper always have zero unused bits.
9650 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9653 *) Make the top-level INSTALL documentation easier to understand.
9656 *) Makefiles updated to exit if an error occurs in a sub-directory
9657 make (including if user presses ^C) [Paul Sutton]
9659 *) Make Montgomery context stuff explicit in RSA data structure.
9662 *) Fix build order of pem and err to allow for generated pem.h.
9665 *) Fix renumbering bug in X509_NAME_delete_entry().
9668 *) Enhanced the err-ins.pl script so it makes the error library number
9669 global and can add a library name. This is needed for external ASN1 and
9670 other error libraries.
9673 *) Fixed sk_insert which never worked properly.
9676 *) Fix ASN1 macros so they can handle indefinite length construted
9677 EXPLICIT tags. Some non standard certificates use these: they can now
9681 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9682 into a single doc/ssleay.txt bundle. This way the information is still
9683 preserved but no longer messes up this directory. Now it's new room for
9684 the new set of documenation files.
9685 [Ralf S. Engelschall]
9687 *) SETs were incorrectly DER encoded. This was a major pain, because they
9688 shared code with SEQUENCEs, which aren't coded the same. This means that
9689 almost everything to do with SETs or SEQUENCEs has either changed name or
9690 number of arguments.
9691 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9693 *) Fix test data to work with the above.
9696 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9697 was already fixed by Eric for 0.9.1 it seems.
9698 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9700 *) Autodetect FreeBSD3.
9703 *) Fix various bugs in Configure. This affects the following platforms:
9707 unixware-2.0-pentium
9711 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9712 before they are needed.
9715 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9719 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9721 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9722 changed SSLeay to OpenSSL in version strings.
9723 [Ralf S. Engelschall]
9725 *) Some fixups to the top-level documents.
9728 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9729 because the symlink to include/ was missing.
9730 [Ralf S. Engelschall]
9732 *) Incorporated the popular no-RSA/DSA-only patches
9733 which allow to compile a RSA-free SSLeay.
9734 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9736 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9737 when "ssleay" is still not found.
9738 [Ralf S. Engelschall]
9740 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9741 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9743 *) Updated the README file.
9744 [Ralf S. Engelschall]
9746 *) Added various .cvsignore files in the CVS repository subdirs
9747 to make a "cvs update" really silent.
9748 [Ralf S. Engelschall]
9750 *) Recompiled the error-definition header files and added
9751 missing symbols to the Win32 linker tables.
9752 [Ralf S. Engelschall]
9754 *) Cleaned up the top-level documents;
9755 o new files: CHANGES and LICENSE
9756 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9757 o merged COPYRIGHT into LICENSE
9758 o removed obsolete TODO file
9759 o renamed MICROSOFT to INSTALL.W32
9760 [Ralf S. Engelschall]
9762 *) Removed dummy files from the 0.9.1b source tree:
9763 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9764 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9765 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9766 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9767 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9768 [Ralf S. Engelschall]
9770 *) Added various platform portability fixes.
9773 *) The Genesis of the OpenSSL rpject:
9774 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9775 Young and Tim J. Hudson created while they were working for C2Net until
9777 [The OpenSSL Project]
9780 Changes between 0.9.0b and 0.9.1b [not released]
9782 *) Updated a few CA certificates under certs/
9785 *) Changed some BIGNUM api stuff.
9788 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9789 DGUX x86, Linux Alpha, etc.
9792 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9793 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9797 *) Add -strparse option to asn1pars program which parses nested
9799 [Dr Stephen Henson <shenson@bigfoot.com>]
9801 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9804 *) DSA fix for "ca" program.
9807 *) Added "-genkey" option to "dsaparam" program.
9810 *) Added RIPE MD160 (rmd160) message digest.
9813 *) Added -a (all) option to "ssleay version" command.
9816 *) Added PLATFORM define which is the id given to Configure.
9819 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9822 *) Extended the ASN.1 parser routines.
9825 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9828 *) Added a BN_CTX to the BN library.
9831 *) Fixed the weak key values in DES library
9834 *) Changed API in EVP library for cipher aliases.
9837 *) Added support for RC2/64bit cipher.
9840 *) Converted the lhash library to the crypto/mem.c functions.
9843 *) Added more recognized ASN.1 object ids.
9846 *) Added more RSA padding checks for SSL/TLS.
9849 *) Added BIO proxy/filter functionality.
9852 *) Added extra_certs to SSL_CTX which can be used
9853 send extra CA certificates to the client in the CA cert chain sending
9854 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9857 *) Now Fortezza is denied in the authentication phase because
9858 this is key exchange mechanism is not supported by SSLeay at all.
9861 *) Additional PKCS1 checks.
9864 *) Support the string "TLSv1" for all TLS v1 ciphers.
9867 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9868 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9871 *) Fixed a few memory leaks.
9874 *) Fixed various code and comment typos.
9877 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9878 bytes sent in the client random.
9879 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob