5 Changes between 1.0.1 and 1.1.0 [xx XXX xxxx]
7 *) Add GCM support to TLS library. Some custom code is needed to split
8 the IV between the fixed (from PRF) and explicit (from TLS record)
9 portions. This adds all GCM ciphersuites supported by RFC5288 and
10 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
11 add a special AESGCM string for GCM only.
14 *) Expand range of ctrls for AES GCM. Permit setting invocation
15 field on decrypt and retrieval of invocation field only on encrypt.
18 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
19 As required by RFC5289 these ciphersuites cannot be used if for
20 versions of TLS earlier than 1.2.
23 *) Add functions FIPS_module_version() and FIPS_module_version_text()
24 to return numberical and string versions of the FIPS module number.
27 *) Rename FIPS_mode_set and FIPS_mode to FIPS_module_mode_set and
28 FIPS_module_mode. FIPS_mode and FIPS_mode_set will be implmeneted
29 outside the validated module in the FIPS capable OpenSSL.
32 *) Minor change to DRBG entropy callback semantics. In some cases
33 there is no mutiple of the block length between min_len and
34 max_len. Allow the callback to return more than max_len bytes
35 of entropy but discard any extra: it is the callback's responsibility
36 to ensure that the extra data discarded does not impact the
37 requested amount of entropy.
40 *) Add PRNG security strength checks to RSA, DSA and ECDSA using
41 information in FIPS186-3, SP800-57 and SP800-131A.
44 *) CCM support via EVP. Interface is very similar to GCM case except we
45 must supply all data in one chunk (i.e. no update, final) and the
46 message length must be supplied if AAD is used. Add algorithm test
50 *) Initial version of POST overhaul. Add POST callback to allow the status
51 of POST to be monitored and/or failures induced. Modify fips_test_suite
52 to use callback. Always run all selftests even if one fails.
55 *) XTS support including algorithm test driver in the fips_gcmtest program.
56 Note: this does increase the maximum key length from 32 to 64 bytes but
57 there should be no binary compatibility issues as existing applications
58 will never use XTS mode.
61 *) Extensive reorganisation of FIPS PRNG behaviour. Remove all dependencies
62 to OpenSSL RAND code and replace with a tiny FIPS RAND API which also
63 performs algorithm blocking for unapproved PRNG types. Also do not
64 set PRNG type in FIPS_mode_set(): leave this to the application.
65 Add default OpenSSL DRBG handling: sets up FIPS PRNG and seeds with
66 the standard OpenSSL PRNG: set additional data to a date time vector.
69 *) Rename old X9.31 PRNG functions of the form FIPS_rand* to FIPS_x931*.
70 This shouldn't present any incompatibility problems because applications
71 shouldn't be using these directly and any that are will need to rethink
72 anyway as the X9.31 PRNG is now deprecated by FIPS 140-2
75 *) Extensive self tests and health checking required by SP800-90 DRBG.
76 Remove strength parameter from FIPS_drbg_instantiate and always
77 instantiate at maximum supported strength.
80 *) Add ECDH code to fips module and fips_ecdhvs for primitives only testing.
83 *) New algorithm test program fips_dhvs to handle DH primitives only testing.
86 *) New function DH_compute_key_padded() to compute a DH key and pad with
87 leading zeroes if needed: this complies with SP800-56A et al.
90 *) Initial implementation of SP800-90 DRBGs for Hash and CTR. Not used by
91 anything, incomplete, subject to change and largely untested at present.
94 *) Modify fipscanisteronly build option to only build the necessary object
95 files by filtering FIPS_EX_OBJ through a perl script in crypto/Makefile.
98 *) Add experimental option FIPSSYMS to give all symbols in
99 fipscanister.o and FIPS or fips prefix. This will avoid
100 conflicts with future versions of OpenSSL. Add perl script
101 util/fipsas.pl to preprocess assembly language source files
102 and rename any affected symbols.
105 *) Add selftest checks and algorithm block of non-fips algorithms in
106 FIPS mode. Remove DES2 from selftests.
109 *) Add ECDSA code to fips module. Add tiny fips_ecdsa_check to just
110 return internal method without any ENGINE dependencies. Add new
111 tiny fips sign and verify functions.
114 *) New build option no-ec2m to disable characteristic 2 code.
117 *) New build option "fipscanisteronly". This only builds fipscanister.o
118 and (currently) associated fips utilities. Uses the file Makefile.fips
119 instead of Makefile.org as the prototype.
122 *) Add some FIPS mode restrictions to GCM. Add internal IV generator.
123 Update fips_gcmtest to use IV generator.
126 *) Initial, experimental EVP support for AES-GCM. AAD can be input by
127 setting output buffer to NULL. The *Final function must be
128 called although it will not retrieve any additional data. The tag
129 can be set or retrieved with a ctrl. The IV length is by default 12
130 bytes (96 bits) but can be set to an alternative value. If the IV
131 length exceeds the maximum IV length (currently 16 bytes) it cannot be
135 *) New flag in ciphers: EVP_CIPH_FLAG_CUSTOM_CIPHER. This means the
136 underlying do_cipher function handles all cipher semantics itself
137 including padding and finalisation. This is useful if (for example)
138 an ENGINE cipher handles block padding itself. The behaviour of
139 do_cipher is subtly changed if this flag is set: the return value
140 is the number of characters written to the output buffer (zero is
141 no longer an error code) or a negative error code. Also if the
142 input buffer is NULL and length 0 finalisation should be performed.
145 *) If a candidate issuer certificate is already part of the constructed
146 path ignore it: new debug notification X509_V_ERR_PATH_LOOP for this case.
149 *) Improve forward-security support: add functions
151 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure))
152 void SSL_set_not_resumable_session_callback(SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure))
154 for use by SSL/TLS servers; the callback function will be called whenever a
155 new session is created, and gets to decide whether the session may be
156 cached to make it resumable (return 0) or not (return 1). (As by the
157 SSL/TLS protocol specifications, the session_id sent by the server will be
158 empty to indicate that the session is not resumable; also, the server will
159 not generate RFC 4507 (RFC 5077) session tickets.)
161 A simple reasonable callback implementation is to return is_forward_secure.
162 This parameter will be set to 1 or 0 depending on the ciphersuite selected
163 by the SSL/TLS server library, indicating whether it can provide forward
165 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
167 *) Add Next Protocol Negotiation,
168 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
169 disabled with a no-npn flag to config or Configure. Code donated
171 [Adam Langley <agl@google.com> and Ben Laurie]
173 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
174 all platforms. Move ssize_t definition from e_os.h to the public
175 header file e_os2.h as it now appears in public header file cms.h
178 *) New function OPENSSL_gmtime_diff to find the difference in days
179 and seconds between two tm structures. This will be used to provide
180 additional functionality for ASN1_TIME.
183 *) New -sigopt option to the ca, req and x509 utilities. Additional
184 signature parameters can be passed using this option and in
188 *) Add RSA PSS signing function. This will generate and set the
189 appropriate AlgorithmIdentifiers for PSS based on those in the
190 corresponding EVP_MD_CTX structure. No application support yet.
193 *) Support for companion algorithm specific ASN1 signing routines.
194 New function ASN1_item_sign_ctx() signs a pre-initialised
195 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
196 the appropriate parameters.
199 *) Add new algorithm specific ASN1 verification initialisation function
200 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
201 handling will be the same no matter what EVP_PKEY_METHOD is used.
202 Add a PSS handler to support verification of PSS signatures: checked
203 against a number of sample certificates.
206 *) Add signature printing for PSS. Add PSS OIDs.
207 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
209 *) Add algorithm specific signature printing. An individual ASN1 method
210 can now print out signatures instead of the standard hex dump.
212 More complex signatures (e.g. PSS) can print out more meaningful
213 information. Include DSA version that prints out the signature
217 *) Add -trusted_first option which attempts to find certificates in the
218 trusted store even if an untrusted chain is also supplied.
221 *) Initial experimental support for explicitly trusted non-root CAs.
222 OpenSSL still tries to build a complete chain to a root but if an
223 intermediate CA has a trust setting included that is used. The first
224 setting is used: whether to trust or reject.
227 *) New -verify_name option in command line utilities to set verification
231 *) Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE.
232 Add CMAC pkey methods.
235 *) Experiemental regnegotiation in s_server -www mode. If the client
236 browses /reneg connection is renegotiated. If /renegcert it is
237 renegotiated requesting a certificate.
240 *) Add an "external" session cache for debugging purposes to s_server. This
241 should help trace issues which normally are only apparent in deployed
242 multi-process servers.
245 *) Experiemental password based recipient info support for CMS library:
246 implementing RFC3211.
249 *) Split password based encryption into PBES2 and PBKDF2 functions. This
250 neatly separates the code into cipher and PBE sections and is required
251 for some algorithms that split PBES2 into separate pieces (such as
255 *) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where
256 return value is ignored. NB. The functions RAND_add(), RAND_seed(),
257 BIO_set_cipher() and some obscure PEM functions were changed so they
258 can now return an error. The RAND changes required a change to the
259 RAND_METHOD structure.
262 *) New macro __owur for "OpenSSL Warn Unused Result". This makes use of
263 a gcc attribute to warn if the result of a function is ignored. This
264 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h
265 whose return value is often ignored.
268 Changes between 1.0.0e and 1.0.1 [xx XXX xxxx]
270 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
271 ENGINE is used then we cannot handle that in the FIPS module so we
272 keep original code iff non-FIPS operations are allowed.
275 *) Add -attime option to openssl verify.
276 [Peter Eckersley <pde@eff.org> and Ben Laurie]
278 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
281 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
282 FIPS EC methods unconditionally for now.
285 *) New build option no-ec2m to disable characteristic 2 code.
288 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
289 all cases can be covered as some introduce binary incompatibilities.
292 *) Redirect RSA operations to FIPS module including keygen,
293 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
296 *) Add similar low level API blocking to ciphers.
299 *) Low level digest APIs are not approved in FIPS mode: any attempt
300 to use these will cause a fatal error. Applications that *really* want
301 to use them can use the private_* version instead.
304 *) Redirect cipher operations to FIPS module for FIPS builds.
307 *) Redirect digest operations to FIPS module for FIPS builds.
310 *) Update build system to add "fips" flag which will link in fipscanister.o
311 for static and shared library builds embedding a signature if needed.
314 *) Output TLS supported curves in preference order instead of numerical
315 order. This is currently hardcoded for the highest order curves first.
316 This should be configurable so applications can judge speed vs strength.
319 *) Add TLS v1.2 server support for client authentication.
322 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
326 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
327 FIPS modules versions.
330 *) Add TLS v1.2 client side support for client authentication. Keep cache
331 of handshake records longer as we don't know the hash algorithm to use
332 until after the certificate request message is received.
335 *) Initial TLS v1.2 client support. Add a default signature algorithms
336 extension including all the algorithms we support. Parse new signature
337 format in client key exchange. Relax some ECC signing restrictions for
338 TLS v1.2 as indicated in RFC5246.
341 *) Add server support for TLS v1.2 signature algorithms extension. Switch
342 to new signature format when needed using client digest preference.
343 All server ciphersuites should now work correctly in TLS v1.2. No client
344 support yet and no support for client certificates.
347 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
348 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
349 ciphersuites. At present only RSA key exchange ciphersuites work with
350 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
351 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
352 and version checking.
355 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
356 with this defined it will not be affected by any changes to ssl internal
357 structures. Add several utility functions to allow openssl application
358 to work with OPENSSL_NO_SSL_INTERN defined.
362 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
364 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
367 *) Add EC_GFp_nistp224_method(), a 64-bit optimized implementation for
368 elliptic curve NIST-P224 with constant-time single point multiplication on
369 typical inputs. EC_GROUP_new_by_curve_name() will automatically use this
370 (while EC_GROUP_new_curve_GFp() currently won't and prefers the more
371 flexible implementations).
373 The implementation requires support for the nonstandard type __uint128_t,
374 and so is disabled by default. To include this in your build of OpenSSL,
375 use -DEC_NISTP224_64_GCC_128 on the Configure (or config) command line,
376 and run "make depend" (or "make update").
377 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
379 *) Permit abbreviated handshakes when renegotiating using the function
380 SSL_renegotiate_abbreviated().
381 [Robin Seggelmann <seggelmann@fh-muenster.de>]
383 *) Add call to ENGINE_register_all_complete() to
384 ENGINE_load_builtin_engines(), so some implementations get used
385 automatically instead of needing explicit application support.
388 *) Add support for TLS key exporter as described in RFC5705.
389 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
391 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
392 a few changes are required:
394 Add SSL_OP_NO_TLSv1_1 flag.
396 Update version checking logic to handle version 1.1.
397 Add explicit IV handling (ported from DTLS code).
398 Add command line options to s_client/s_server.
401 Changes between 1.0.0d and 1.0.0e [xx XXX xxxx]
403 *) Add protection against ECDSA timing attacks as mentioned in the paper
404 by Billy Bob Brumley and Nicola Tuveri, see:
406 http://eprint.iacr.org/2011/232.pdf
408 [Billy Bob Brumley and Nicola Tuveri]
410 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
412 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
413 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
415 *) Fix bug in string printing code: if *any* escaping is enabled we must
416 escape the escape character (backslash) or the resulting string is
420 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
422 *) Disable code workaround for ancient and obsolete Netscape browsers
423 and servers: an attacker can use it in a ciphersuite downgrade attack.
424 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
427 *) Fixed J-PAKE implementation error, originally discovered by
428 Sebastien Martini, further info and confirmation from Stefan
429 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
432 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
434 *) Fix extension code to avoid race conditions which can result in a buffer
435 overrun vulnerability: resumed sessions must not be modified as they can
436 be shared by multiple threads. CVE-2010-3864
439 *) Fix WIN32 build system to correctly link an ENGINE directory into
443 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
445 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
447 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
449 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
451 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
452 context. The operation can be customised via the ctrl mechanism in
453 case ENGINEs want to include additional functionality.
456 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
459 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
460 output hashes compatible with older versions of OpenSSL.
461 [Willy Weisz <weisz@vcpc.univie.ac.at>]
463 *) Fix compression algorithm handling: if resuming a session use the
464 compression algorithm of the resumed session instead of determining
465 it from client hello again. Don't allow server to change algorithm.
468 *) Add load_crls() function to apps tidying load_certs() too. Add option
469 to verify utility to allow additional CRLs to be included.
472 *) Update OCSP request code to permit adding custom headers to the request:
473 some responders need this.
476 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
478 [Julia Lawall <julia@diku.dk>]
480 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
481 needlessly dereferenced structures, used obsolete functions and
482 didn't handle all updated verify codes correctly.
485 *) Disable MD2 in the default configuration.
488 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
489 indicate the initial BIO being pushed or popped. This makes it possible
490 to determine whether the BIO is the one explicitly called or as a result
491 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
492 it handles reference counts correctly and doesn't zero out the I/O bio
493 when it is not being explicitly popped. WARNING: applications which
494 included workarounds for the old buggy behaviour will need to be modified
495 or they could free up already freed BIOs.
498 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
499 renaming to all platforms (within the 0.9.8 branch, this was
500 done conditionally on Netware platforms to avoid a name clash).
501 [Guenter <lists@gknw.net>]
503 *) Add ECDHE and PSK support to DTLS.
504 [Michael Tuexen <tuexen@fh-muenster.de>]
506 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
510 *) Add "missing" function EVP_MD_flags() (without this the only way to
511 retrieve a digest flags is by accessing the structure directly. Update
512 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
513 or cipher is registered as in the "from" argument. Print out all
514 registered digests in the dgst usage message instead of manually
515 attempting to work them out.
518 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
519 this allows the use of compression and extensions. Change default cipher
520 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
521 by default unless an application cipher string requests it.
524 *) Alter match criteria in PKCS12_parse(). It used to try to use local
525 key ids to find matching certificates and keys but some PKCS#12 files
526 don't follow the (somewhat unwritten) rules and this strategy fails.
527 Now just gather all certificates together and the first private key
528 then look for the first certificate that matches the key.
531 *) Support use of registered digest and cipher names for dgst and cipher
532 commands instead of having to add each one as a special case. So now
539 openssl dgst -sha256 foo
541 and this works for ENGINE based algorithms too.
545 *) Update Gost ENGINE to support parameter files.
546 [Victor B. Wagner <vitus@cryptocom.ru>]
548 *) Support GeneralizedTime in ca utility.
549 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
551 *) Enhance the hash format used for certificate directory links. The new
552 form uses the canonical encoding (meaning equivalent names will work
553 even if they aren't identical) and uses SHA1 instead of MD5. This form
554 is incompatible with the older format and as a result c_rehash should
555 be used to rebuild symbolic links.
558 *) Make PKCS#8 the default write format for private keys, replacing the
559 traditional format. This form is standardised, more secure and doesn't
560 include an implicit MD5 dependency.
563 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
564 committed to OpenSSL should pass this lot as a minimum.
567 *) Add session ticket override functionality for use by EAP-FAST.
568 [Jouni Malinen <j@w1.fi>]
570 *) Modify HMAC functions to return a value. Since these can be implemented
571 in an ENGINE errors can occur.
574 *) Type-checked OBJ_bsearch_ex.
577 *) Type-checked OBJ_bsearch. Also some constification necessitated
578 by type-checking. Still to come: TXT_DB, bsearch(?),
579 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
583 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
584 seconds to a tm structure directly, instead of going through OS
585 specific date routines. This avoids any issues with OS routines such
586 as the year 2038 bug. New *_adj() functions for ASN1 time structures
587 and X509_time_adj_ex() to cover the extended range. The existing
588 X509_time_adj() is still usable and will no longer have any date issues.
591 *) Delta CRL support. New use deltas option which will attempt to locate
592 and search any appropriate delta CRLs available.
594 This work was sponsored by Google.
597 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
598 code and add additional score elements. Validate alternate CRL paths
599 as part of the CRL checking and indicate a new error "CRL path validation
600 error" in this case. Applications wanting additional details can use
601 the verify callback and check the new "parent" field. If this is not
602 NULL CRL path validation is taking place. Existing applications wont
603 see this because it requires extended CRL support which is off by
606 This work was sponsored by Google.
609 *) Support for freshest CRL extension.
611 This work was sponsored by Google.
614 *) Initial indirect CRL support. Currently only supported in the CRLs
615 passed directly and not via lookup. Process certificate issuer
616 CRL entry extension and lookup CRL entries by bother issuer name
617 and serial number. Check and process CRL issuer entry in IDP extension.
619 This work was sponsored by Google.
622 *) Add support for distinct certificate and CRL paths. The CRL issuer
623 certificate is validated separately in this case. Only enabled if
624 an extended CRL support flag is set: this flag will enable additional
625 CRL functionality in future.
627 This work was sponsored by Google.
630 *) Add support for policy mappings extension.
632 This work was sponsored by Google.
635 *) Fixes to pathlength constraint, self issued certificate handling,
636 policy processing to align with RFC3280 and PKITS tests.
638 This work was sponsored by Google.
641 *) Support for name constraints certificate extension. DN, email, DNS
642 and URI types are currently supported.
644 This work was sponsored by Google.
647 *) To cater for systems that provide a pointer-based thread ID rather
648 than numeric, deprecate the current numeric thread ID mechanism and
649 replace it with a structure and associated callback type. This
650 mechanism allows a numeric "hash" to be extracted from a thread ID in
651 either case, and on platforms where pointers are larger than 'long',
652 mixing is done to help ensure the numeric 'hash' is usable even if it
653 can't be guaranteed unique. The default mechanism is to use "&errno"
654 as a pointer-based thread ID to distinguish between threads.
656 Applications that want to provide their own thread IDs should now use
657 CRYPTO_THREADID_set_callback() to register a callback that will call
658 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
660 Note that ERR_remove_state() is now deprecated, because it is tied
661 to the assumption that thread IDs are numeric. ERR_remove_state(0)
662 to free the current thread's error state should be replaced by
663 ERR_remove_thread_state(NULL).
665 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
666 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
667 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
668 application was previously providing a numeric thread callback that
669 was inappropriate for distinguishing threads, then uniqueness might
670 have been obtained with &errno that happened immediately in the
671 intermediate development versions of OpenSSL; this is no longer the
672 case, the numeric thread callback will now override the automatic use
674 [Geoff Thorpe, with help from Bodo Moeller]
676 *) Initial support for different CRL issuing certificates. This covers a
677 simple case where the self issued certificates in the chain exist and
678 the real CRL issuer is higher in the existing chain.
680 This work was sponsored by Google.
683 *) Removed effectively defunct crypto/store from the build.
686 *) Revamp of STACK to provide stronger type-checking. Still to come:
687 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
688 ASN1_STRING, CONF_VALUE.
691 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
692 RAM on SSL connections. This option can save about 34k per idle SSL.
695 *) Revamp of LHASH to provide stronger type-checking. Still to come:
696 STACK, TXT_DB, bsearch, qsort.
699 *) Initial support for Cryptographic Message Syntax (aka CMS) based
700 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
701 support for data, signedData, compressedData, digestedData and
702 encryptedData, envelopedData types included. Scripts to check against
703 RFC4134 examples draft and interop and consistency checks of many
704 content types and variants.
707 *) Add options to enc utility to support use of zlib compression BIO.
710 *) Extend mk1mf to support importing of options and assembly language
711 files from Configure script, currently only included in VC-WIN32.
712 The assembly language rules can now optionally generate the source
713 files from the associated perl scripts.
716 *) Implement remaining functionality needed to support GOST ciphersuites.
717 Interop testing has been performed using CryptoPro implementations.
718 [Victor B. Wagner <vitus@cryptocom.ru>]
720 *) s390x assembler pack.
723 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
727 *) Implement Opaque PRF Input TLS extension as specified in
728 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
729 official specification yet and no extension type assignment by
730 IANA exists, this extension (for now) will have to be explicitly
731 enabled when building OpenSSL by providing the extension number
732 to use. For example, specify an option
734 -DTLSEXT_TYPE_opaque_prf_input=0x9527
736 to the "config" or "Configure" script to enable the extension,
737 assuming extension number 0x9527 (which is a completely arbitrary
738 and unofficial assignment based on the MD5 hash of the Internet
739 Draft). Note that by doing so, you potentially lose
740 interoperability with other TLS implementations since these might
741 be using the same extension number for other purposes.
743 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
744 opaque PRF input value to use in the handshake. This will create
745 an interal copy of the length-'len' string at 'src', and will
746 return non-zero for success.
748 To get more control and flexibility, provide a callback function
751 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
752 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
756 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
759 Callback function 'cb' will be called in handshakes, and is
760 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
761 Argument 'arg' is for application purposes (the value as given to
762 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
763 be provided to the callback function). The callback function
764 has to return non-zero to report success: usually 1 to use opaque
765 PRF input just if possible, or 2 to enforce use of the opaque PRF
766 input. In the latter case, the library will abort the handshake
767 if opaque PRF input is not successfully negotiated.
769 Arguments 'peerinput' and 'len' given to the callback function
770 will always be NULL and 0 in the case of a client. A server will
771 see the client's opaque PRF input through these variables if
772 available (NULL and 0 otherwise). Note that if the server
773 provides an opaque PRF input, the length must be the same as the
774 length of the client's opaque PRF input.
776 Note that the callback function will only be called when creating
777 a new session (session resumption can resume whatever was
778 previously negotiated), and will not be called in SSL 2.0
779 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
780 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
781 for applications that need to enforce opaque PRF input.
785 *) Update ssl code to support digests other than SHA1+MD5 for handshake
788 [Victor B. Wagner <vitus@cryptocom.ru>]
790 *) Add RFC4507 support to OpenSSL. This includes the corrections in
791 RFC4507bis. The encrypted ticket format is an encrypted encoded
792 SSL_SESSION structure, that way new session features are automatically
795 If a client application caches session in an SSL_SESSION structure
796 support is transparent because tickets are now stored in the encoded
799 The SSL_CTX structure automatically generates keys for ticket
800 protection in servers so again support should be possible
801 with no application modification.
803 If a client or server wishes to disable RFC4507 support then the option
804 SSL_OP_NO_TICKET can be set.
806 Add a TLS extension debugging callback to allow the contents of any client
807 or server extensions to be examined.
809 This work was sponsored by Google.
812 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
813 OpenSSL should now compile cleanly on gcc 4.2
814 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
816 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
817 support including streaming MAC support: this is required for GOST
819 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
821 *) Add option -stream to use PKCS#7 streaming in smime utility. New
822 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
823 to output in BER and PEM format.
826 *) Experimental support for use of HMAC via EVP_PKEY interface. This
827 allows HMAC to be handled via the EVP_DigestSign*() interface. The
828 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
829 ENGINE support for HMAC keys which are unextractable. New -mac and
830 -macopt options to dgst utility.
833 *) New option -sigopt to dgst utility. Update dgst to use
834 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
835 alternative signing paramaters such as X9.31 or PSS in the dgst
839 *) Change ssl_cipher_apply_rule(), the internal function that does
840 the work each time a ciphersuite string requests enabling
841 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
842 removing ("!foo+bar") a class of ciphersuites: Now it maintains
843 the order of disabled ciphersuites such that those ciphersuites
844 that most recently went from enabled to disabled not only stay
845 in order with respect to each other, but also have higher priority
846 than other disabled ciphersuites the next time ciphersuites are
849 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
850 the same ciphersuites as with "HIGH" alone, but in a specific
851 order where the PSK ciphersuites come first (since they are the
852 most recently disabled ciphersuites when "HIGH" is parsed).
854 Also, change ssl_create_cipher_list() (using this new
855 funcionality) such that between otherwise identical
856 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
860 *) Change ssl_create_cipher_list() so that it automatically
861 arranges the ciphersuites in reasonable order before starting
862 to process the rule string. Thus, the definition for "DEFAULT"
863 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
864 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
865 This makes it much easier to arrive at a reasonable default order
866 in applications for which anonymous ciphers are OK (meaning
867 that you can't actually use DEFAULT).
868 [Bodo Moeller; suggested by Victor Duchovni]
870 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
871 processing) into multiple integers instead of setting
872 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
873 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
874 (These masks as well as the individual bit definitions are hidden
875 away into the non-exported interface ssl/ssl_locl.h, so this
876 change to the definition of the SSL_CIPHER structure shouldn't
877 affect applications.) This give us more bits for each of these
878 categories, so there is no longer a need to coagulate AES128 and
879 AES256 into a single algorithm bit, and to coagulate Camellia128
880 and Camellia256 into a single algorithm bit, which has led to all
883 Thus, among other things, the kludge introduced in 0.9.7m and
884 0.9.8e for masking out AES256 independently of AES128 or masking
885 out Camellia256 independently of AES256 is not needed here in 0.9.9.
887 With the change, we also introduce new ciphersuite aliases that
888 so far were missing: "AES128", "AES256", "CAMELLIA128", and
892 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
893 Use the leftmost N bytes of the signature input if the input is
894 larger than the prime q (with N being the size in bytes of q).
897 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
898 it yet and it is largely untested.
901 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
904 *) Initial incomplete changes to avoid need for function casts in OpenSSL
905 some compilers (gcc 4.2 and later) reject their use. Safestack is
906 reimplemented. Update ASN1 to avoid use of legacy functions.
909 *) Win32/64 targets are linked with Winsock2.
912 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
913 to external functions. This can be used to increase CRL handling
914 efficiency especially when CRLs are very large by (for example) storing
915 the CRL revoked certificates in a database.
918 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
919 new CRLs added to a directory can be used. New command line option
920 -verify_return_error to s_client and s_server. This causes real errors
921 to be returned by the verify callback instead of carrying on no matter
922 what. This reflects the way a "real world" verify callback would behave.
925 *) GOST engine, supporting several GOST algorithms and public key formats.
926 Kindly donated by Cryptocom.
929 *) Partial support for Issuing Distribution Point CRL extension. CRLs
930 partitioned by DP are handled but no indirect CRL or reason partitioning
931 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
932 selected via a scoring technique which handles IDP and AKID in CRLs.
935 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
936 will ultimately be used for all verify operations: this will remove the
937 X509_STORE dependency on certificate verification and allow alternative
938 lookup methods. X509_STORE based implementations of these two callbacks.
941 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
942 Modify get_crl() to find a valid (unexpired) CRL if possible.
945 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
946 this would be called X509_CRL_cmp() but that name is already used by
947 a function that just compares CRL issuer names. Cache several CRL
948 extensions in X509_CRL structure and cache CRLDP in X509.
951 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
952 this maps equivalent X509_NAME structures into a consistent structure.
953 Name comparison can then be performed rapidly using memcmp().
956 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
960 *) Allow digests to supply their own micalg string for S/MIME type using
961 the ctrl EVP_MD_CTRL_MICALG.
964 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
965 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
966 ctrl. It can then customise the structure before and/or after signing
970 *) New function OBJ_add_sigid() to allow application defined signature OIDs
971 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
972 to free up any added signature OIDs.
975 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
976 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
977 digest and cipher tables. New options added to openssl utility:
978 list-message-digest-algorithms and list-cipher-algorithms.
981 *) Change the array representation of binary polynomials: the list
982 of degrees of non-zero coefficients is now terminated with -1.
983 Previously it was terminated with 0, which was also part of the
984 value; thus, the array representation was not applicable to
985 polynomials where t^0 has coefficient zero. This change makes
986 the array representation useful in a more general context.
989 *) Various modifications and fixes to SSL/TLS cipher string
990 handling. For ECC, the code now distinguishes between fixed ECDH
991 with RSA certificates on the one hand and with ECDSA certificates
992 on the other hand, since these are separate ciphersuites. The
993 unused code for Fortezza ciphersuites has been removed.
995 For consistency with EDH, ephemeral ECDH is now called "EECDH"
996 (not "ECDHE"). For consistency with the code for DH
997 certificates, use of ECDH certificates is now considered ECDH
998 authentication, not RSA or ECDSA authentication (the latter is
999 merely the CA's signing algorithm and not actively used in the
1002 The temporary ciphersuite alias "ECCdraft" is no longer
1003 available, and ECC ciphersuites are no longer excluded from "ALL"
1004 and "DEFAULT". The following aliases now exist for RFC 4492
1005 ciphersuites, most of these by analogy with the DH case:
1007 kECDHr - ECDH cert, signed with RSA
1008 kECDHe - ECDH cert, signed with ECDSA
1009 kECDH - ECDH cert (signed with either RSA or ECDSA)
1010 kEECDH - ephemeral ECDH
1011 ECDH - ECDH cert or ephemeral ECDH
1017 AECDH - anonymous ECDH
1018 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
1022 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
1023 Use correct micalg parameters depending on digest(s) in signed message.
1026 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
1027 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
1030 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
1031 an engine to register a method. Add ENGINE lookups for methods and
1032 functional reference processing.
1035 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
1036 EVP_{Sign,Verify}* which allow an application to customise the signature
1040 *) New -resign option to smime utility. This adds one or more signers
1041 to an existing PKCS#7 signedData structure. Also -md option to use an
1042 alternative message digest algorithm for signing.
1045 *) Tidy up PKCS#7 routines and add new functions to make it easier to
1046 create PKCS7 structures containing multiple signers. Update smime
1047 application to support multiple signers.
1050 *) New -macalg option to pkcs12 utility to allow setting of an alternative
1054 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
1055 Reorganize PBE internals to lookup from a static table using NIDs,
1056 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
1057 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
1058 PRF which will be automatically used with PBES2.
1061 *) Replace the algorithm specific calls to generate keys in "req" with the
1065 *) Update PKCS#7 enveloped data routines to use new API. This is now
1066 supported by any public key method supporting the encrypt operation. A
1067 ctrl is added to allow the public key algorithm to examine or modify
1068 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
1072 *) Add a ctrl to asn1 method to allow a public key algorithm to express
1073 a default digest type to use. In most cases this will be SHA1 but some
1074 algorithms (such as GOST) need to specify an alternative digest. The
1075 return value indicates how strong the prefernce is 1 means optional and
1076 2 is mandatory (that is it is the only supported type). Modify
1077 ASN1_item_sign() to accept a NULL digest argument to indicate it should
1078 use the default md. Update openssl utilities to use the default digest
1079 type for signing if it is not explicitly indicated.
1082 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
1083 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
1084 signing method from the key type. This effectively removes the link
1085 between digests and public key types.
1088 *) Add an OID cross reference table and utility functions. Its purpose is to
1089 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1090 rsaEncryption. This will allow some of the algorithm specific hackery
1091 needed to use the correct OID to be removed.
1094 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1095 structures for PKCS7_sign(). They are now set up by the relevant public
1099 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1102 *) Add support for key derivation (agreement) in the API, DH method and
1106 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1107 public and private key formats. As a side effect these add additional
1108 command line functionality not previously available: DSA signatures can be
1109 generated and verified using pkeyutl and DH key support and generation in
1114 [Oliver Tappe <zooey@hirschkaefer.de>]
1116 *) New make target "install_html_docs" installs HTML renditions of the
1118 [Oliver Tappe <zooey@hirschkaefer.de>]
1120 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1121 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1122 support key and parameter generation and add initial key generation
1123 functionality for RSA.
1126 *) Add functions for main EVP_PKEY_method operations. The undocumented
1127 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1128 EVP_PKEY_{encrypt,decrypt}_old.
1131 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1132 key API, doesn't do much yet.
1135 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1136 public key algorithms. New option to openssl utility:
1137 "list-public-key-algorithms" to print out info.
1140 *) Implement the Supported Elliptic Curves Extension for
1141 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1144 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1145 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1148 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1149 utilities such as rsa, dsa, dsaparam etc except they process any key
1153 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1154 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1155 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1159 *) Initial support for pluggable public key ASN1.
1160 De-spaghettify the public key ASN1 handling. Move public and private
1161 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1162 algorithm specific handling to a single module within the relevant
1163 algorithm directory. Add functions to allow (near) opaque processing
1164 of public and private key structures.
1167 *) Implement the Supported Point Formats Extension for
1168 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1171 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1172 for the psk identity [hint] and the psk callback functions to the
1173 SSL_SESSION, SSL and SSL_CTX structure.
1176 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1180 SSL_CTX_use_psk_identity_hint
1181 SSL_get_psk_identity_hint
1182 SSL_get_psk_identity
1183 SSL_use_psk_identity_hint
1185 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1187 *) Add RFC 3161 compliant time stamp request creation, response generation
1188 and response verification functionality.
1189 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1191 *) Add initial support for TLS extensions, specifically for the server_name
1192 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1193 have new members for a host name. The SSL data structure has an
1194 additional member SSL_CTX *initial_ctx so that new sessions can be
1195 stored in that context to allow for session resumption, even after the
1196 SSL has been switched to a new SSL_CTX in reaction to a client's
1197 server_name extension.
1199 New functions (subject to change):
1201 SSL_get_servername()
1202 SSL_get_servername_type()
1205 New CTRL codes and macros (subject to change):
1207 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1208 - SSL_CTX_set_tlsext_servername_callback()
1209 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1210 - SSL_CTX_set_tlsext_servername_arg()
1211 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1213 openssl s_client has a new '-servername ...' option.
1215 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1216 '-key2 ...', '-servername_fatal' (subject to change). This allows
1217 testing the HostName extension for a specific single host name ('-cert'
1218 and '-key' remain fallbacks for handshakes without HostName
1219 negotiation). If the unrecogninzed_name alert has to be sent, this by
1220 default is a warning; it becomes fatal with the '-servername_fatal'
1223 [Peter Sylvester, Remy Allais, Christophe Renou]
1225 *) Whirlpool hash implementation is added.
1228 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1229 bn(64,32). Because of instruction set limitations it doesn't have
1230 any negative impact on performance. This was done mostly in order
1231 to make it possible to share assembler modules, such as bn_mul_mont
1232 implementations, between 32- and 64-bit builds without hassle.
1235 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1236 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1240 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1241 dedicated Montgomery multiplication procedure, is introduced.
1242 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1243 "64-bit" performance on certain 32-bit targets.
1246 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1247 in SSL structures. New SSL ctrl to set maximum send fragment size.
1248 Save memory by seeting the I/O buffer sizes dynamically instead of
1249 using the maximum available value.
1252 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1253 in addition to the text details.
1256 *) Very, very preliminary EXPERIMENTAL support for printing of general
1257 ASN1 structures. This currently produces rather ugly output and doesn't
1258 handle several customised structures at all.
1261 *) Integrated support for PVK file format and some related formats such
1262 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1263 these in the 'rsa' and 'dsa' utilities.
1266 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1269 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1270 place for the (very old) "NETSCAPE" format certificates which are now
1271 handled using new ASN1 code equivalents.
1274 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1275 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1276 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1279 *) Modify CRL distribution points extension code to print out previously
1280 unsupported fields. Enhance extension setting code to allow setting of
1284 *) Add print and set support for Issuing Distribution Point CRL extension.
1287 *) Change 'Configure' script to enable Camellia by default.
1290 Changes between 0.9.8r and 0.9.8s [xx XXX xxxx]
1292 *) Add protection against ECDSA timing attacks as mentioned in the paper
1293 by Billy Bob Brumley and Nicola Tuveri, see:
1295 http://eprint.iacr.org/2011/232.pdf
1297 [Billy Bob Brumley and Nicola Tuveri]
1299 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1301 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1302 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1304 *) Fix bug in string printing code: if *any* escaping is enabled we must
1305 escape the escape character (backslash) or the resulting string is
1309 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1311 *) Disable code workaround for ancient and obsolete Netscape browsers
1312 and servers: an attacker can use it in a ciphersuite downgrade attack.
1313 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1316 *) Fixed J-PAKE implementation error, originally discovered by
1317 Sebastien Martini, further info and confirmation from Stefan
1318 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1321 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1323 *) Fix extension code to avoid race conditions which can result in a buffer
1324 overrun vulnerability: resumed sessions must not be modified as they can
1325 be shared by multiple threads. CVE-2010-3864
1328 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1331 *) Don't reencode certificate when calculating signature: cache and use
1332 the original encoding instead. This makes signature verification of
1333 some broken encodings work correctly.
1336 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1337 is also one of the inputs.
1338 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1340 *) Don't repeatedly append PBE algorithms to table if they already exist.
1341 Sort table on each new add. This effectively makes the table read only
1342 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1346 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1348 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1351 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1352 access or freeing data twice (CVE-2010-0742)
1353 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1355 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1356 common in certificates and some applications which only call
1357 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1361 Reduce copying into .apps and .test in makevms.com
1362 Don't try to use blank CA certificate in CA.com
1363 Allow use of C files from original directories in maketests.com
1364 [Steven M. Schweda" <sms@antinode.info>]
1366 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1368 *) When rejecting SSL/TLS records due to an incorrect version number, never
1369 update s->server with a new major version number. As of
1370 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1371 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1372 the previous behavior could result in a read attempt at NULL when
1373 receiving specific incorrect SSL/TLS records once record payload
1374 protection is active. (CVE-2010-0740)
1375 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1377 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1378 could be crashed if the relevant tables were not present (e.g. chrooted).
1379 [Tomas Hoger <thoger@redhat.com>]
1381 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1383 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1384 [Martin Olsson, Neel Mehta]
1386 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1387 accommodate for stack sorting, always a write lock!).
1390 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1391 excessive delays in the RAND_poll(): over a minute. As a workaround
1392 include a time check in the inner Heap32Next loop too.
1395 *) The code that handled flushing of data in SSL/TLS originally used the
1396 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1397 the problem outlined in PR#1949. The fix suggested there however can
1398 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1399 of Apache). So instead simplify the code to flush unconditionally.
1400 This should be fine since flushing with no data to flush is a no op.
1403 *) Handle TLS versions 2.0 and later properly and correctly use the
1404 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1405 off ancient servers have a habit of sticking around for a while...
1408 *) Modify compression code so it frees up structures without using the
1409 ex_data callbacks. This works around a problem where some applications
1410 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1411 restarting) then use compression (e.g. SSL with compression) later.
1412 This results in significant per-connection memory leaks and
1413 has caused some security issues including CVE-2008-1678 and
1417 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1418 change when encrypting or decrypting.
1421 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1422 connect and renegotiate with servers which do not support RI.
1423 Until RI is more widely deployed this option is enabled by default.
1426 *) Add "missing" ssl ctrls to clear options and mode.
1429 *) If client attempts to renegotiate and doesn't support RI respond with
1430 a no_renegotiation alert as required by RFC5746. Some renegotiating
1431 TLS clients will continue a connection gracefully when they receive
1432 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1433 waiting for a server hello which it will never receive. Now we treat a
1434 received no_renegotiation alert as a fatal error. This is because
1435 applications requesting a renegotiation might well expect it to succeed
1436 and would have no code in place to handle the server denying it so the
1437 only safe thing to do is to terminate the connection.
1440 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1441 peer supports secure renegotiation and 0 otherwise. Print out peer
1442 renegotiation support in s_client/s_server.
1445 *) Replace the highly broken and deprecated SPKAC certification method with
1446 the updated NID creation version. This should correctly handle UTF8.
1449 *) Implement RFC5746. Re-enable renegotiation but require the extension
1450 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1451 turns out to be a bad idea. It has been replaced by
1452 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1453 SSL_CTX_set_options(). This is really not recommended unless you
1454 know what you are doing.
1455 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1457 *) Fixes to stateless session resumption handling. Use initial_ctx when
1458 issuing and attempting to decrypt tickets in case it has changed during
1459 servername handling. Use a non-zero length session ID when attempting
1460 stateless session resumption: this makes it possible to determine if
1461 a resumption has occurred immediately after receiving server hello
1462 (several places in OpenSSL subtly assume this) instead of later in
1466 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1467 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1468 fixes for a few places where the return code is not checked
1470 [Julia Lawall <julia@diku.dk>]
1472 *) Add --strict-warnings option to Configure script to include devteam
1473 warnings in other configurations.
1476 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1477 makes it possible to install openssl libraries in locations which
1478 have names other than "lib", for example "/usr/lib64" which some
1480 [Steve Henson, based on patch from Jeremy Utley]
1482 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1483 X690 8.9.12 and can produce some misleading textual output of OIDs.
1484 [Steve Henson, reported by Dan Kaminsky]
1486 *) Delete MD2 from algorithm tables. This follows the recommendation in
1487 several standards that it is not used in new applications due to
1488 several cryptographic weaknesses. For binary compatibility reasons
1489 the MD2 API is still compiled in by default.
1492 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1496 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1497 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1499 [Guenter <lists@gknw.net>]
1501 *) Fix the server certificate chain building code to use X509_verify_cert(),
1502 it used to have an ad-hoc builder which was unable to cope with anything
1503 other than a simple chain.
1504 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1506 *) Don't check self signed certificate signatures in X509_verify_cert()
1507 by default (a flag can override this): it just wastes time without
1508 adding any security. As a useful side effect self signed root CAs
1509 with non-FIPS digests are now usable in FIPS mode.
1512 *) In dtls1_process_out_of_seq_message() the check if the current message
1513 is already buffered was missing. For every new message was memory
1514 allocated, allowing an attacker to perform an denial of service attack
1515 with sending out of seq handshake messages until there is no memory
1516 left. Additionally every future messege was buffered, even if the
1517 sequence number made no sense and would be part of another handshake.
1518 So only messages with sequence numbers less than 10 in advance will be
1519 buffered. (CVE-2009-1378)
1520 [Robin Seggelmann, discovered by Daniel Mentz]
1522 *) Records are buffered if they arrive with a future epoch to be
1523 processed after finishing the corresponding handshake. There is
1524 currently no limitation to this buffer allowing an attacker to perform
1525 a DOS attack with sending records with future epochs until there is no
1526 memory left. This patch adds the pqueue_size() function to detemine
1527 the size of a buffer and limits the record buffer to 100 entries.
1529 [Robin Seggelmann, discovered by Daniel Mentz]
1531 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1532 parent structure is freed. (CVE-2009-1379)
1535 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1536 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1539 [Ilya O. <vrghost@gmail.com>]
1541 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1543 *) Disable renegotiation completely - this fixes a severe security
1544 problem (CVE-2009-3555) at the cost of breaking all
1545 renegotiation. Renegotiation can be re-enabled by setting
1546 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1547 run-time. This is really not recommended unless you know what
1551 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1553 *) Don't set val to NULL when freeing up structures, it is freed up by
1554 underlying code. If sizeof(void *) > sizeof(long) this can result in
1555 zeroing past the valid field. (CVE-2009-0789)
1556 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1558 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1559 checked correctly. This would allow some invalid signed attributes to
1560 appear to verify correctly. (CVE-2009-0591)
1561 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1563 *) Reject UniversalString and BMPString types with invalid lengths. This
1564 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1565 a legal length. (CVE-2009-0590)
1568 *) Set S/MIME signing as the default purpose rather than setting it
1569 unconditionally. This allows applications to override it at the store
1573 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1574 to handle some structures.
1577 *) Improve efficiency of mem_gets: don't search whole buffer each time
1579 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1581 *) New -hex option for openssl rand.
1584 *) Print out UTF8String and NumericString when parsing ASN1.
1587 *) Support NumericString type for name components.
1590 *) Allow CC in the environment to override the automatically chosen
1591 compiler. Note that nothing is done to ensure flags work with the
1595 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1597 *) Properly check EVP_VerifyFinal() and similar return values
1599 [Ben Laurie, Bodo Moeller, Google Security Team]
1601 *) Enable TLS extensions by default.
1604 *) Allow the CHIL engine to be loaded, whether the application is
1605 multithreaded or not. (This does not release the developer from the
1606 obligation to set up the dynamic locking callbacks.)
1607 [Sander Temme <sander@temme.net>]
1609 *) Use correct exit code if there is an error in dgst command.
1610 [Steve Henson; problem pointed out by Roland Dirlewanger]
1612 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1613 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1616 *) Add experimental JPAKE support, including demo authentication in
1617 s_client and s_server.
1620 *) Set the comparison function in v3_addr_canonize().
1621 [Rob Austein <sra@hactrn.net>]
1623 *) Add support for XMPP STARTTLS in s_client.
1624 [Philip Paeps <philip@freebsd.org>]
1626 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1627 to ensure that even with this option, only ciphersuites in the
1628 server's preference list will be accepted. (Note that the option
1629 applies only when resuming a session, so the earlier behavior was
1630 just about the algorithm choice for symmetric cryptography.)
1633 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1635 *) Fix NULL pointer dereference if a DTLS server received
1636 ChangeCipherSpec as first record (CVE-2009-1386).
1639 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1640 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1643 *) The fix in 0.9.8c that supposedly got rid of unsafe
1644 double-checked locking was incomplete for RSA blinding,
1645 addressing just one layer of what turns out to have been
1646 doubly unsafe triple-checked locking.
1648 So now fix this for real by retiring the MONT_HELPER macro
1649 in crypto/rsa/rsa_eay.c.
1651 [Bodo Moeller; problem pointed out by Marius Schilder]
1653 *) Various precautionary measures:
1655 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1657 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1658 (NB: This would require knowledge of the secret session ticket key
1659 to exploit, in which case you'd be SOL either way.)
1661 - Change bn_nist.c so that it will properly handle input BIGNUMs
1662 outside the expected range.
1664 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1667 [Neel Mehta, Bodo Moeller]
1669 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1670 the load fails. Useful for distros.
1671 [Ben Laurie and the FreeBSD team]
1673 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1676 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1679 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1681 This work was sponsored by Logica.
1684 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1685 keystores. Support for SSL/TLS client authentication too.
1686 Not compiled unless enable-capieng specified to Configure.
1688 This work was sponsored by Logica.
1691 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1692 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1693 attribute creation routines such as certifcate requests and PKCS#12
1697 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1699 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1700 handshake which could lead to a cilent crash as found using the
1701 Codenomicon TLS test suite (CVE-2008-1672)
1702 [Steve Henson, Mark Cox]
1704 *) Fix double free in TLS server name extensions which could lead to
1705 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1708 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1710 Clear the error queue to ensure that error entries left from
1711 older function calls do not interfere with the correct operation.
1712 [Lutz Jaenicke, Erik de Castro Lopo]
1714 *) Remove root CA certificates of commercial CAs:
1716 The OpenSSL project does not recommend any specific CA and does not
1717 have any policy with respect to including or excluding any CA.
1718 Therefore it does not make any sense to ship an arbitrary selection
1719 of root CA certificates with the OpenSSL software.
1722 *) RSA OAEP patches to fix two separate invalid memory reads.
1723 The first one involves inputs when 'lzero' is greater than
1724 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1725 before the beginning of from). The second one involves inputs where
1726 the 'db' section contains nothing but zeroes (there is a one-byte
1727 invalid read after the end of 'db').
1728 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1730 *) Partial backport from 0.9.9-dev:
1732 Introduce bn_mul_mont (dedicated Montgomery multiplication
1733 procedure) as a candidate for BIGNUM assembler implementation.
1734 While 0.9.9-dev uses assembler for various architectures, only
1735 x86_64 is available by default here in the 0.9.8 branch, and
1736 32-bit x86 is available through a compile-time setting.
1738 To try the 32-bit x86 assembler implementation, use Configure
1739 option "enable-montasm" (which exists only for this backport).
1741 As "enable-montasm" for 32-bit x86 disclaims code stability
1742 anyway, in this constellation we activate additional code
1743 backported from 0.9.9-dev for further performance improvements,
1744 namely BN_from_montgomery_word. (To enable this otherwise,
1745 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1747 [Andy Polyakov (backport partially by Bodo Moeller)]
1749 *) Add TLS session ticket callback. This allows an application to set
1750 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1751 values. This is useful for key rollover for example where several key
1752 sets may exist with different names.
1755 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1756 This was broken until now in 0.9.8 releases, such that the only way
1757 a registered ENGINE could be used (assuming it initialises
1758 successfully on the host) was to explicitly set it as the default
1759 for the relevant algorithms. This is in contradiction with 0.9.7
1760 behaviour and the documentation. With this fix, when an ENGINE is
1761 registered into a given algorithm's table of implementations, the
1762 'uptodate' flag is reset so that auto-discovery will be used next
1763 time a new context for that algorithm attempts to select an
1765 [Ian Lister (tweaked by Geoff Thorpe)]
1767 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1768 implemention in the following ways:
1770 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1773 Lack of BER streaming support means one pass streaming processing is
1774 only supported if data is detached: setting the streaming flag is
1775 ignored for embedded content.
1777 CMS support is disabled by default and must be explicitly enabled
1778 with the enable-cms configuration option.
1781 *) Update the GMP engine glue to do direct copies between BIGNUM and
1782 mpz_t when openssl and GMP use the same limb size. Otherwise the
1783 existing "conversion via a text string export" trick is still used.
1784 [Paul Sheer <paulsheer@gmail.com>]
1786 *) Zlib compression BIO. This is a filter BIO which compressed and
1787 uncompresses any data passed through it.
1790 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1791 RFC3394 compatible AES key wrapping.
1794 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1795 sets string data without copying. X509_ALGOR_set0() and
1796 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1797 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1798 from an X509_ATTRIBUTE structure optionally checking it occurs only
1799 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1803 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1804 to get the expected BN_FLG_CONSTTIME behavior.
1805 [Bodo Moeller (Google)]
1809 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1810 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1811 - added some more tests to do_tests.pl
1812 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1813 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1814 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1815 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1816 - various changes to netware.pl to enable gcc-cross builds on Win32
1818 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1819 - various changes to fix missing prototype warnings
1820 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1821 - added AES, WHIRLPOOL and CPUID assembler code to build files
1822 - added missing AES assembler make rules to mk1mf.pl
1823 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1824 [Guenter Knauf <eflash@gmx.net>]
1826 *) Implement certificate status request TLS extension defined in RFC3546.
1827 A client can set the appropriate parameters and receive the encoded
1828 OCSP response via a callback. A server can query the supplied parameters
1829 and set the encoded OCSP response in the callback. Add simplified examples
1830 to s_client and s_server.
1833 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1835 *) Fix various bugs:
1836 + Binary incompatibility of ssl_ctx_st structure
1837 + DTLS interoperation with non-compliant servers
1838 + Don't call get_session_cb() without proposed session
1839 + Fix ia64 assembler code
1840 [Andy Polyakov, Steve Henson]
1842 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1844 *) DTLS Handshake overhaul. There were longstanding issues with
1845 OpenSSL DTLS implementation, which were making it impossible for
1846 RFC 4347 compliant client to communicate with OpenSSL server.
1847 Unfortunately just fixing these incompatibilities would "cut off"
1848 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1849 server keeps tolerating non RFC compliant syntax. The opposite is
1850 not true, 0.9.8f client can not communicate with earlier server.
1851 This update even addresses CVE-2007-4995.
1854 *) Changes to avoid need for function casts in OpenSSL: some compilers
1855 (gcc 4.2 and later) reject their use.
1856 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
1859 *) Add RFC4507 support to OpenSSL. This includes the corrections in
1860 RFC4507bis. The encrypted ticket format is an encrypted encoded
1861 SSL_SESSION structure, that way new session features are automatically
1864 If a client application caches session in an SSL_SESSION structure
1865 support is transparent because tickets are now stored in the encoded
1868 The SSL_CTX structure automatically generates keys for ticket
1869 protection in servers so again support should be possible
1870 with no application modification.
1872 If a client or server wishes to disable RFC4507 support then the option
1873 SSL_OP_NO_TICKET can be set.
1875 Add a TLS extension debugging callback to allow the contents of any client
1876 or server extensions to be examined.
1878 This work was sponsored by Google.
1881 *) Add initial support for TLS extensions, specifically for the server_name
1882 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1883 have new members for a host name. The SSL data structure has an
1884 additional member SSL_CTX *initial_ctx so that new sessions can be
1885 stored in that context to allow for session resumption, even after the
1886 SSL has been switched to a new SSL_CTX in reaction to a client's
1887 server_name extension.
1889 New functions (subject to change):
1891 SSL_get_servername()
1892 SSL_get_servername_type()
1895 New CTRL codes and macros (subject to change):
1897 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1898 - SSL_CTX_set_tlsext_servername_callback()
1899 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1900 - SSL_CTX_set_tlsext_servername_arg()
1901 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1903 openssl s_client has a new '-servername ...' option.
1905 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1906 '-key2 ...', '-servername_fatal' (subject to change). This allows
1907 testing the HostName extension for a specific single host name ('-cert'
1908 and '-key' remain fallbacks for handshakes without HostName
1909 negotiation). If the unrecogninzed_name alert has to be sent, this by
1910 default is a warning; it becomes fatal with the '-servername_fatal'
1913 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
1915 *) Add AES and SSE2 assembly language support to VC++ build.
1918 *) Mitigate attack on final subtraction in Montgomery reduction.
1921 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
1922 (which previously caused an internal error).
1925 *) Squeeze another 10% out of IGE mode when in != out.
1928 *) AES IGE mode speedup.
1929 [Dean Gaudet (Google)]
1931 *) Add the Korean symmetric 128-bit cipher SEED (see
1932 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
1933 add SEED ciphersuites from RFC 4162:
1935 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
1936 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
1937 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
1938 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
1940 To minimize changes between patchlevels in the OpenSSL 0.9.8
1941 series, SEED remains excluded from compilation unless OpenSSL
1942 is configured with 'enable-seed'.
1943 [KISA, Bodo Moeller]
1945 *) Mitigate branch prediction attacks, which can be practical if a
1946 single processor is shared, allowing a spy process to extract
1947 information. For detailed background information, see
1948 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
1949 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
1950 and Necessary Software Countermeasures"). The core of the change
1951 are new versions BN_div_no_branch() and
1952 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
1953 respectively, which are slower, but avoid the security-relevant
1954 conditional branches. These are automatically called by BN_div()
1955 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
1956 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
1957 remove a conditional branch.
1959 BN_FLG_CONSTTIME is the new name for the previous
1960 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
1961 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
1962 in the exponent causes BN_mod_exp_mont() to use the alternative
1963 implementation in BN_mod_exp_mont_consttime().) The old name
1964 remains as a deprecated alias.
1966 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
1967 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
1968 constant-time implementations for more than just exponentiation.
1969 Here too the old name is kept as a deprecated alias.
1971 BN_BLINDING_new() will now use BN_dup() for the modulus so that
1972 the BN_BLINDING structure gets an independent copy of the
1973 modulus. This means that the previous "BIGNUM *m" argument to
1974 BN_BLINDING_new() and to BN_BLINDING_create_param() now
1975 essentially becomes "const BIGNUM *m", although we can't actually
1976 change this in the header file before 0.9.9. It allows
1977 RSA_setup_blinding() to use BN_with_flags() on the modulus to
1978 enable BN_FLG_CONSTTIME.
1980 [Matthew D Wood (Intel Corp)]
1982 *) In the SSL/TLS server implementation, be strict about session ID
1983 context matching (which matters if an application uses a single
1984 external cache for different purposes). Previously,
1985 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
1986 set. This did ensure strict client verification, but meant that,
1987 with applications using a single external cache for quite
1988 different requirements, clients could circumvent ciphersuite
1989 restrictions for a given session ID context by starting a session
1990 in a different context.
1993 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
1994 a ciphersuite string such as "DEFAULT:RSA" cannot enable
1995 authentication-only ciphersuites.
1998 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
1999 not complete and could lead to a possible single byte overflow
2000 (CVE-2007-5135) [Ben Laurie]
2002 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
2004 *) Since AES128 and AES256 (and similarly Camellia128 and
2005 Camellia256) share a single mask bit in the logic of
2006 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2007 kludge to work properly if AES128 is available and AES256 isn't
2008 (or if Camellia128 is available and Camellia256 isn't).
2011 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
2012 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
2013 When a point or a seed is encoded in a BIT STRING, we need to
2014 prevent the removal of trailing zero bits to get the proper DER
2015 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
2016 of a NamedBitList, for which trailing 0 bits need to be removed.)
2019 *) Have SSL/TLS server implementation tolerate "mismatched" record
2020 protocol version while receiving ClientHello even if the
2021 ClientHello is fragmented. (The server can't insist on the
2022 particular protocol version it has chosen before the ServerHello
2023 message has informed the client about his choice.)
2026 *) Add RFC 3779 support.
2027 [Rob Austein for ARIN, Ben Laurie]
2029 *) Load error codes if they are not already present instead of using a
2030 static variable. This allows them to be cleanly unloaded and reloaded.
2031 Improve header file function name parsing.
2034 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
2035 or CAPABILITY handshake as required by RFCs.
2038 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
2040 *) Introduce limits to prevent malicious keys being able to
2041 cause a denial of service. (CVE-2006-2940)
2042 [Steve Henson, Bodo Moeller]
2044 *) Fix ASN.1 parsing of certain invalid structures that can result
2045 in a denial of service. (CVE-2006-2937) [Steve Henson]
2047 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2048 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2050 *) Fix SSL client code which could crash if connecting to a
2051 malicious SSLv2 server. (CVE-2006-4343)
2052 [Tavis Ormandy and Will Drewry, Google Security Team]
2054 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
2055 match only those. Before that, "AES256-SHA" would be interpreted
2056 as a pattern and match "AES128-SHA" too (since AES128-SHA got
2057 the same strength classification in 0.9.7h) as we currently only
2058 have a single AES bit in the ciphersuite description bitmap.
2059 That change, however, also applied to ciphersuite strings such as
2060 "RC4-MD5" that intentionally matched multiple ciphersuites --
2061 namely, SSL 2.0 ciphersuites in addition to the more common ones
2062 from SSL 3.0/TLS 1.0.
2064 So we change the selection algorithm again: Naming an explicit
2065 ciphersuite selects this one ciphersuite, and any other similar
2066 ciphersuite (same bitmap) from *other* protocol versions.
2067 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2068 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
2070 Since SSL 2.0 does not have any ciphersuites for which the
2071 128/256 bit distinction would be relevant, this works for now.
2072 The proper fix will be to use different bits for AES128 and
2073 AES256, which would have avoided the problems from the beginning;
2074 however, bits are scarce, so we can only do this in a new release
2075 (not just a patchlevel) when we can change the SSL_CIPHER
2076 definition to split the single 'unsigned long mask' bitmap into
2077 multiple values to extend the available space.
2081 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2083 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2084 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2086 *) Add AES IGE and biIGE modes.
2089 *) Change the Unix randomness entropy gathering to use poll() when
2090 possible instead of select(), since the latter has some
2091 undesirable limitations.
2092 [Darryl Miles via Richard Levitte and Bodo Moeller]
2094 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2095 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2096 cannot be implicitly activated as part of, e.g., the "AES" alias.
2097 However, please upgrade to OpenSSL 0.9.9[-dev] for
2098 non-experimental use of the ECC ciphersuites to get TLS extension
2099 support, which is required for curve and point format negotiation
2100 to avoid potential handshake problems.
2103 *) Disable rogue ciphersuites:
2105 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2106 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2107 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2109 The latter two were purportedly from
2110 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2113 Also deactivate the remaining ciphersuites from
2114 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2115 unofficial, and the ID has long expired.
2118 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2119 dual-core machines) and other potential thread-safety issues.
2122 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2123 versions), which is now available for royalty-free use
2124 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2125 Also, add Camellia TLS ciphersuites from RFC 4132.
2127 To minimize changes between patchlevels in the OpenSSL 0.9.8
2128 series, Camellia remains excluded from compilation unless OpenSSL
2129 is configured with 'enable-camellia'.
2132 *) Disable the padding bug check when compression is in use. The padding
2133 bug check assumes the first packet is of even length, this is not
2134 necessarily true if compresssion is enabled and can result in false
2135 positives causing handshake failure. The actual bug test is ancient
2136 code so it is hoped that implementations will either have fixed it by
2137 now or any which still have the bug do not support compression.
2140 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2142 *) When applying a cipher rule check to see if string match is an explicit
2143 cipher suite and only match that one cipher suite if it is.
2146 *) Link in manifests for VC++ if needed.
2147 [Austin Ziegler <halostatue@gmail.com>]
2149 *) Update support for ECC-based TLS ciphersuites according to
2150 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2151 TLS extensions, which are supported starting with the 0.9.9
2152 branch, not in the OpenSSL 0.9.8 branch).
2155 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2156 opaque EVP_CIPHER_CTX handling.
2159 *) Fixes and enhancements to zlib compression code. We now only use
2160 "zlib1.dll" and use the default __cdecl calling convention on Win32
2161 to conform with the standards mentioned here:
2162 http://www.zlib.net/DLL_FAQ.txt
2163 Static zlib linking now works on Windows and the new --with-zlib-include
2164 --with-zlib-lib options to Configure can be used to supply the location
2165 of the headers and library. Gracefully handle case where zlib library
2169 *) Several fixes and enhancements to the OID generation code. The old code
2170 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2171 handle numbers larger than ULONG_MAX, truncated printing and had a
2172 non standard OBJ_obj2txt() behaviour.
2175 *) Add support for building of engines under engine/ as shared libraries
2176 under VC++ build system.
2179 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2180 Hopefully, we will not see any false combination of paths any more.
2183 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2185 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2186 (part of SSL_OP_ALL). This option used to disable the
2187 countermeasure against man-in-the-middle protocol-version
2188 rollback in the SSL 2.0 server implementation, which is a bad
2189 idea. (CVE-2005-2969)
2191 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2192 for Information Security, National Institute of Advanced Industrial
2193 Science and Technology [AIST], Japan)]
2195 *) Add two function to clear and return the verify parameter flags.
2198 *) Keep cipherlists sorted in the source instead of sorting them at
2199 runtime, thus removing the need for a lock.
2202 *) Avoid some small subgroup attacks in Diffie-Hellman.
2203 [Nick Mathewson and Ben Laurie]
2205 *) Add functions for well-known primes.
2208 *) Extended Windows CE support.
2209 [Satoshi Nakamura and Andy Polyakov]
2211 *) Initialize SSL_METHOD structures at compile time instead of during
2212 runtime, thus removing the need for a lock.
2215 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2216 attempting to decrypt each encrypted key in turn. Add support to
2220 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2222 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2225 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2228 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2229 key into the same file any more.
2232 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2235 *) Add -utf8 command line and config file option to 'ca'.
2236 [Stefan <stf@udoma.org]
2238 *) Removed the macro des_crypt(), as it seems to conflict with some
2239 libraries. Use DES_crypt().
2242 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2243 involves renaming the source and generated shared-libs for
2244 both. The engines will accept the corrected or legacy ids
2245 ('ncipher' and '4758_cca' respectively) when binding. NB,
2246 this only applies when building 'shared'.
2247 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2249 *) Add attribute functions to EVP_PKEY structure. Modify
2250 PKCS12_create() to recognize a CSP name attribute and
2251 use it. Make -CSP option work again in pkcs12 utility.
2254 *) Add new functionality to the bn blinding code:
2255 - automatic re-creation of the BN_BLINDING parameters after
2256 a fixed number of uses (currently 32)
2257 - add new function for parameter creation
2258 - introduce flags to control the update behaviour of the
2259 BN_BLINDING parameters
2260 - hide BN_BLINDING structure
2261 Add a second BN_BLINDING slot to the RSA structure to improve
2262 performance when a single RSA object is shared among several
2266 *) Add support for DTLS.
2267 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2269 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2270 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2273 *) Remove buggy and incompletet DH cert support from
2274 ssl/ssl_rsa.c and ssl/s3_both.c
2277 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2278 the apps/openssl applications.
2281 *) Compile clean with "-Wall -Wmissing-prototypes
2282 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2283 DEBUG_SAFESTACK must also be set.
2286 *) Change ./Configure so that certain algorithms can be disabled by default.
2287 The new counterpiece to "no-xxx" is "enable-xxx".
2289 The patented RC5 and MDC2 algorithms will now be disabled unless
2290 "enable-rc5" and "enable-mdc2", respectively, are specified.
2292 (IDEA remains enabled despite being patented. This is because IDEA
2293 is frequently required for interoperability, and there is no license
2294 fee for non-commercial use. As before, "no-idea" can be used to
2295 avoid this algorithm.)
2299 *) Add processing of proxy certificates (see RFC 3820). This work was
2300 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2301 EGEE (Enabling Grids for E-science in Europe).
2304 *) RC4 performance overhaul on modern architectures/implementations, such
2305 as Intel P4, IA-64 and AMD64.
2308 *) New utility extract-section.pl. This can be used specify an alternative
2309 section number in a pod file instead of having to treat each file as
2310 a separate case in Makefile. This can be done by adding two lines to the
2313 =for comment openssl_section:XXX
2315 The blank line is mandatory.
2319 *) New arguments -certform, -keyform and -pass for s_client and s_server
2320 to allow alternative format key and certificate files and passphrase
2324 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2325 update associated structures and add various utility functions.
2327 Add new policy related verify parameters, include policy checking in
2328 standard verify code. Enhance 'smime' application with extra parameters
2329 to support policy checking and print out.
2332 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2333 Nehemiah processors. These extensions support AES encryption in hardware
2334 as well as RNG (though RNG support is currently disabled).
2335 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2337 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2340 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2341 [Andy Polyakov and a number of other people]
2343 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2344 implementation contributed by IBM.
2345 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2347 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2348 exponent rather than 'unsigned long'. There is a corresponding change to
2349 the new 'rsa_keygen' element of the RSA_METHOD structure.
2350 [Jelte Jansen, Geoff Thorpe]
2352 *) Functionality for creating the initial serial number file is now
2353 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2355 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2356 number file to 1, which is bound to cause problems. To avoid
2357 the problems while respecting compatibility between different 0.9.7
2358 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2359 CA.pl for serial number initialization. With the new release 0.9.8,
2360 we can fix the problem directly in the 'ca' utility.)
2363 *) Reduced header interdepencies by declaring more opaque objects in
2364 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2365 give fewer recursive includes, which could break lazy source code - so
2366 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2367 developers should define this symbol when building and using openssl to
2368 ensure they track the recommended behaviour, interfaces, [etc], but
2369 backwards-compatible behaviour prevails when this isn't defined.
2372 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2375 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2376 This will generate a random key of the appropriate length based on the
2377 cipher context. The EVP_CIPHER can provide its own random key generation
2378 routine to support keys of a specific form. This is used in the des and
2379 3des routines to generate a key of the correct parity. Update S/MIME
2380 code to use new functions and hence generate correct parity DES keys.
2381 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2382 valid (weak or incorrect parity).
2385 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2386 as looking them up. This is useful when the verified structure may contain
2387 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2388 present unless the new PKCS7_NO_CRL flag is asserted.
2391 *) Extend ASN1 oid configuration module. It now additionally accepts the
2394 shortName = some long name, 1.2.3.4
2397 *) Reimplemented the BN_CTX implementation. There is now no more static
2398 limitation on the number of variables it can handle nor the depth of the
2399 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2400 information can now expand as required, and rather than having a single
2401 static array of bignums, BN_CTX now uses a linked-list of such arrays
2402 allowing it to expand on demand whilst maintaining the usefulness of
2403 BN_CTX's "bundling".
2406 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2407 to allow all RSA operations to function using a single BN_CTX.
2410 *) Preliminary support for certificate policy evaluation and checking. This
2411 is initially intended to pass the tests outlined in "Conformance Testing
2412 of Relying Party Client Certificate Path Processing Logic" v1.07.
2415 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2416 remained unused and not that useful. A variety of other little bignum
2417 tweaks and fixes have also been made continuing on from the audit (see
2421 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2422 associated ASN1, EVP and SSL functions and old ASN1 macros.
2425 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2426 and this should never fail. So the return value from the use of
2427 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2428 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2431 *) BN_CTX_get() should return zero-valued bignums, providing the same
2432 initialised value as BN_new().
2433 [Geoff Thorpe, suggested by Ulf Möller]
2435 *) Support for inhibitAnyPolicy certificate extension.
2438 *) An audit of the BIGNUM code is underway, for which debugging code is
2439 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2440 is considered valid when processing BIGNUMs, and causes execution to
2441 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2442 further steps are taken to deliberately pollute unused data in BIGNUM
2443 structures to try and expose faulty code further on. For now, openssl will
2444 (in its default mode of operation) continue to tolerate the inconsistent
2445 forms that it has tolerated in the past, but authors and packagers should
2446 consider trying openssl and their own applications when compiled with
2447 these debugging symbols defined. It will help highlight potential bugs in
2448 their own code, and will improve the test coverage for OpenSSL itself. At
2449 some point, these tighter rules will become openssl's default to improve
2450 maintainability, though the assert()s and other overheads will remain only
2451 in debugging configurations. See bn.h for more details.
2452 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2454 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2455 that can only be obtained through BN_CTX_new() (which implicitly
2456 initialises it). The presence of this function only made it possible
2457 to overwrite an existing structure (and cause memory leaks).
2460 *) Because of the callback-based approach for implementing LHASH as a
2461 template type, lh_insert() adds opaque objects to hash-tables and
2462 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2463 to clean up those corresponding objects before destroying the hash table
2464 (and losing the object pointers). So some over-zealous constifications in
2465 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2466 objects as "const" and the lh_doall[_arg] callback wrappers are not
2467 prototyped to have "const" restrictions on the object pointers they are
2468 given (and so aren't required to cast them away any more).
2471 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2472 (speed) prefers to use its own implementation. The two implementations
2473 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2474 its object type properly exposed (MS_TM) instead of casting to/from "char
2475 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2476 aren't necessarily the greatest nomenclatures - but this is what was used
2477 internally to the implementation so I've used that for now.
2480 *) Ensure that deprecated functions do not get compiled when
2481 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2482 the self-tests were still using deprecated key-generation functions so
2483 these have been updated also.
2486 *) Reorganise PKCS#7 code to separate the digest location functionality
2487 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2488 New function PKCS7_set_digest() to set the digest type for PKCS#7
2489 digestedData type. Add additional code to correctly generate the
2490 digestedData type and add support for this type in PKCS7 initialization
2494 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2495 structure of type "other".
2498 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2499 sure the loop does correctly stop and breaking ("division by zero")
2500 modulus operations are not performed. The (pre-generated) prime
2501 table crypto/bn/bn_prime.h was already correct, but it could not be
2502 re-generated on some platforms because of the "division by zero"
2503 situation in the script.
2504 [Ralf S. Engelschall]
2506 *) Update support for ECC-based TLS ciphersuites according to
2507 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2508 SHA-1 now is only used for "small" curves (where the
2509 representation of a field element takes up to 24 bytes); for
2510 larger curves, the field element resulting from ECDH is directly
2511 used as premaster secret.
2512 [Douglas Stebila (Sun Microsystems Laboratories)]
2514 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2515 curve secp160r1 to the tests.
2516 [Douglas Stebila (Sun Microsystems Laboratories)]
2518 *) Add the possibility to load symbols globally with DSO.
2519 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2521 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2522 control of the error stack.
2525 *) Add support for STORE in ENGINE.
2528 *) Add the STORE type. The intention is to provide a common interface
2529 to certificate and key stores, be they simple file-based stores, or
2530 HSM-type store, or LDAP stores, or...
2531 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2534 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2535 pass a list of arguments to any function as well as provide a way
2536 for a function to pass data back to the caller.
2539 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2540 works like BUF_strdup() but can be used to duplicate a portion of
2541 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2545 *) Add the function sk_find_ex() which works like sk_find(), but will
2546 return an index to an element even if an exact match couldn't be
2547 found. The index is guaranteed to point at the element where the
2548 searched-for key would be inserted to preserve sorting order.
2551 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2552 takes an extra flags argument for optional functionality. Currently,
2553 the following flags are defined:
2555 OBJ_BSEARCH_VALUE_ON_NOMATCH
2556 This one gets OBJ_bsearch_ex() to return a pointer to the first
2557 element where the comparing function returns a negative or zero
2560 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2561 This one gets OBJ_bsearch_ex() to return a pointer to the first
2562 element where the comparing function returns zero. This is useful
2563 if there are more than one element where the comparing function
2567 *) Make it possible to create self-signed certificates with 'openssl ca'
2568 in such a way that the self-signed certificate becomes part of the
2569 CA database and uses the same mechanisms for serial number generation
2570 as all other certificate signing. The new flag '-selfsign' enables
2571 this functionality. Adapt CA.sh and CA.pl.in.
2574 *) Add functionality to check the public key of a certificate request
2575 against a given private. This is useful to check that a certificate
2576 request can be signed by that key (self-signing).
2579 *) Make it possible to have multiple active certificates with the same
2580 subject in the CA index file. This is done only if the keyword
2581 'unique_subject' is set to 'no' in the main CA section (default
2582 if 'CA_default') of the configuration file. The value is saved
2583 with the database itself in a separate index attribute file,
2584 named like the index file with '.attr' appended to the name.
2587 *) Generate muti valued AVAs using '+' notation in config files for
2591 *) Support for nameConstraints certificate extension.
2594 *) Support for policyConstraints certificate extension.
2597 *) Support for policyMappings certificate extension.
2600 *) Make sure the default DSA_METHOD implementation only uses its
2601 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2602 and change its own handlers to be NULL so as to remove unnecessary
2603 indirection. This lets alternative implementations fallback to the
2604 default implementation more easily.
2607 *) Support for directoryName in GeneralName related extensions
2611 *) Make it possible to link applications using Makefile.shared.
2612 Make that possible even when linking against static libraries!
2615 *) Support for single pass processing for S/MIME signing. This now
2616 means that S/MIME signing can be done from a pipe, in addition
2617 cleartext signing (multipart/signed type) is effectively streaming
2618 and the signed data does not need to be all held in memory.
2620 This is done with a new flag PKCS7_STREAM. When this flag is set
2621 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2622 is done after the data is output (and digests calculated) in
2623 SMIME_write_PKCS7().
2626 *) Add full support for -rpath/-R, both in shared libraries and
2627 applications, at least on the platforms where it's known how
2631 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2632 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2633 will now compute a table of multiples of the generator that
2634 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2635 faster (notably in the case of a single point multiplication,
2636 scalar * generator).
2637 [Nils Larsch, Bodo Moeller]
2639 *) IPv6 support for certificate extensions. The various extensions
2640 which use the IP:a.b.c.d can now take IPv6 addresses using the
2641 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2645 *) Added an ENGINE that implements RSA by performing private key
2646 exponentiations with the GMP library. The conversions to and from
2647 GMP's mpz_t format aren't optimised nor are any montgomery forms
2648 cached, and on x86 it appears OpenSSL's own performance has caught up.
2649 However there are likely to be other architectures where GMP could
2650 provide a boost. This ENGINE is not built in by default, but it can be
2651 specified at Configure time and should be accompanied by the necessary
2652 linker additions, eg;
2653 ./config -DOPENSSL_USE_GMP -lgmp
2656 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2657 testing availability of engines with "-t" - the old behaviour is
2658 produced by increasing the feature's verbosity with "-tt".
2661 *) ECDSA routines: under certain error conditions uninitialized BN objects
2662 could be freed. Solution: make sure initialization is performed early
2663 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2667 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2668 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2669 software implementations. For DSA and DH, parameter generation can
2670 also be overriden by providing the appropriate method callbacks.
2673 *) Change the "progress" mechanism used in key-generation and
2674 primality testing to functions that take a new BN_GENCB pointer in
2675 place of callback/argument pairs. The new API functions have "_ex"
2676 postfixes and the older functions are reimplemented as wrappers for
2677 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2678 declarations of the old functions to help (graceful) attempts to
2679 migrate to the new functions. Also, the new key-generation API
2680 functions operate on a caller-supplied key-structure and return
2681 success/failure rather than returning a key or NULL - this is to
2682 help make "keygen" another member function of RSA_METHOD etc.
2684 Example for using the new callback interface:
2686 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2690 BN_GENCB_set(&my_cb, my_callback, my_arg);
2692 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2693 /* For the meaning of a, b in calls to my_callback(), see the
2694 * documentation of the function that calls the callback.
2695 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2696 * my_callback should return 1 if it wants BN_is_prime_ex()
2697 * to continue, or 0 to stop.
2702 *) Change the ZLIB compression method to be stateful, and make it
2703 available to TLS with the number defined in
2704 draft-ietf-tls-compression-04.txt.
2707 *) Add the ASN.1 structures and functions for CertificatePair, which
2708 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2710 CertificatePair ::= SEQUENCE {
2711 forward [0] Certificate OPTIONAL,
2712 reverse [1] Certificate OPTIONAL,
2713 -- at least one of the pair shall be present -- }
2715 Also implement the PEM functions to read and write certificate
2716 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2718 This needed to be defined, mostly for the sake of the LDAP
2719 attribute crossCertificatePair, but may prove useful elsewhere as
2723 *) Make it possible to inhibit symlinking of shared libraries in
2724 Makefile.shared, for Cygwin's sake.
2727 *) Extend the BIGNUM API by creating a function
2728 void BN_set_negative(BIGNUM *a, int neg);
2729 and a macro that behave like
2730 int BN_is_negative(const BIGNUM *a);
2732 to avoid the need to access 'a->neg' directly in applications.
2735 *) Implement fast modular reduction for pseudo-Mersenne primes
2736 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2737 EC_GROUP_new_curve_GFp() will now automatically use this
2739 [Nils Larsch <nla@trustcenter.de>]
2741 *) Add new lock type (CRYPTO_LOCK_BN).
2744 *) Change the ENGINE framework to automatically load engines
2745 dynamically from specific directories unless they could be
2746 found to already be built in or loaded. Move all the
2747 current engines except for the cryptodev one to a new
2749 The engines in engines/ are built as shared libraries if
2750 the "shared" options was given to ./Configure or ./config.
2751 Otherwise, they are inserted in libcrypto.a.
2752 /usr/local/ssl/engines is the default directory for dynamic
2753 engines, but that can be overriden at configure time through
2754 the usual use of --prefix and/or --openssldir, and at run
2755 time with the environment variable OPENSSL_ENGINES.
2756 [Geoff Thorpe and Richard Levitte]
2758 *) Add Makefile.shared, a helper makefile to build shared
2759 libraries. Addapt Makefile.org.
2762 *) Add version info to Win32 DLLs.
2763 [Peter 'Luna' Runestig" <peter@runestig.com>]
2765 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2766 can be added using this API to created arbitrary PKCS#12
2767 files while avoiding the low level API.
2769 New options to PKCS12_create(), key or cert can be NULL and
2770 will then be omitted from the output file. The encryption
2771 algorithm NIDs can be set to -1 for no encryption, the mac
2772 iteration count can be set to 0 to omit the mac.
2774 Enhance pkcs12 utility by making the -nokeys and -nocerts
2775 options work when creating a PKCS#12 file. New option -nomac
2776 to omit the mac, NONE can be set for an encryption algorithm.
2777 New code is modified to use the enhanced PKCS12_create()
2778 instead of the low level API.
2781 *) Extend ASN1 encoder to support indefinite length constructed
2782 encoding. This can output sequences tags and octet strings in
2783 this form. Modify pk7_asn1.c to support indefinite length
2784 encoding. This is experimental and needs additional code to
2785 be useful, such as an ASN1 bio and some enhanced streaming
2788 Extend template encode functionality so that tagging is passed
2789 down to the template encoder.
2792 *) Let 'openssl req' fail if an argument to '-newkey' is not
2793 recognized instead of using RSA as a default.
2796 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2797 As these are not official, they are not included in "ALL";
2798 the "ECCdraft" ciphersuite group alias can be used to select them.
2799 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2801 *) Add ECDH engine support.
2802 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2804 *) Add ECDH in new directory crypto/ecdh/.
2805 [Douglas Stebila (Sun Microsystems Laboratories)]
2807 *) Let BN_rand_range() abort with an error after 100 iterations
2808 without success (which indicates a broken PRNG).
2811 *) Change BN_mod_sqrt() so that it verifies that the input value
2812 is really the square of the return value. (Previously,
2813 BN_mod_sqrt would show GIGO behaviour.)
2816 *) Add named elliptic curves over binary fields from X9.62, SECG,
2817 and WAP/WTLS; add OIDs that were still missing.
2819 [Sheueling Chang Shantz and Douglas Stebila
2820 (Sun Microsystems Laboratories)]
2822 *) Extend the EC library for elliptic curves over binary fields
2823 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2826 EC_GF2m_simple_method
2830 EC_GROUP_new_curve_GF2m
2831 EC_GROUP_set_curve_GF2m
2832 EC_GROUP_get_curve_GF2m
2833 EC_POINT_set_affine_coordinates_GF2m
2834 EC_POINT_get_affine_coordinates_GF2m
2835 EC_POINT_set_compressed_coordinates_GF2m
2837 Point compression for binary fields is disabled by default for
2838 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2841 As binary polynomials are represented as BIGNUMs, various members
2842 of the EC_GROUP and EC_POINT data structures can be shared
2843 between the implementations for prime fields and binary fields;
2844 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2845 are essentially identical to their ..._GFp counterparts.
2846 (For simplicity, the '..._GFp' prefix has been dropped from
2847 various internal method names.)
2849 An internal 'field_div' method (similar to 'field_mul' and
2850 'field_sqr') has been added; this is used only for binary fields.
2852 [Sheueling Chang Shantz and Douglas Stebila
2853 (Sun Microsystems Laboratories)]
2855 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2856 through methods ('mul', 'precompute_mult').
2858 The generic implementations (now internally called 'ec_wNAF_mul'
2859 and 'ec_wNAF_precomputed_mult') remain the default if these
2860 methods are undefined.
2862 [Sheueling Chang Shantz and Douglas Stebila
2863 (Sun Microsystems Laboratories)]
2865 *) New function EC_GROUP_get_degree, which is defined through
2866 EC_METHOD. For curves over prime fields, this returns the bit
2867 length of the modulus.
2869 [Sheueling Chang Shantz and Douglas Stebila
2870 (Sun Microsystems Laboratories)]
2872 *) New functions EC_GROUP_dup, EC_POINT_dup.
2873 (These simply call ..._new and ..._copy).
2875 [Sheueling Chang Shantz and Douglas Stebila
2876 (Sun Microsystems Laboratories)]
2878 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
2879 Polynomials are represented as BIGNUMs (where the sign bit is not
2880 used) in the following functions [macros]:
2883 BN_GF2m_sub [= BN_GF2m_add]
2884 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
2885 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
2886 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
2888 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
2889 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
2890 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
2891 BN_GF2m_cmp [= BN_ucmp]
2893 (Note that only the 'mod' functions are actually for fields GF(2^m).
2894 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
2896 For some functions, an the irreducible polynomial defining a
2897 field can be given as an 'unsigned int[]' with strictly
2898 decreasing elements giving the indices of those bits that are set;
2899 i.e., p[] represents the polynomial
2900 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
2902 p[0] > p[1] > ... > p[k] = 0.
2903 This applies to the following functions:
2908 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
2909 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
2911 BN_GF2m_mod_sqrt_arr
2912 BN_GF2m_mod_solve_quad_arr
2916 Conversion can be performed by the following functions:
2921 bntest.c has additional tests for binary polynomial arithmetic.
2923 Two implementations for BN_GF2m_mod_div() are available.
2924 The default algorithm simply uses BN_GF2m_mod_inv() and
2925 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
2926 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
2927 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
2929 [Sheueling Chang Shantz and Douglas Stebila
2930 (Sun Microsystems Laboratories)]
2932 *) Add new error code 'ERR_R_DISABLED' that can be used when some
2933 functionality is disabled at compile-time.
2934 [Douglas Stebila <douglas.stebila@sun.com>]
2936 *) Change default behaviour of 'openssl asn1parse' so that more
2937 information is visible when viewing, e.g., a certificate:
2939 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
2940 mode the content of non-printable OCTET STRINGs is output in a
2941 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
2942 avoid the appearance of a printable string.
2943 [Nils Larsch <nla@trustcenter.de>]
2945 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
2947 EC_GROUP_set_asn1_flag()
2948 EC_GROUP_get_asn1_flag()
2949 EC_GROUP_set_point_conversion_form()
2950 EC_GROUP_get_point_conversion_form()
2951 These control ASN1 encoding details:
2952 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
2953 has been set to OPENSSL_EC_NAMED_CURVE.
2954 - Points are encoded in uncompressed form by default; options for
2955 asn1_for are as for point2oct, namely
2956 POINT_CONVERSION_COMPRESSED
2957 POINT_CONVERSION_UNCOMPRESSED
2958 POINT_CONVERSION_HYBRID
2960 Also add 'seed' and 'seed_len' members to EC_GROUP with access
2963 EC_GROUP_get0_seed()
2964 EC_GROUP_get_seed_len()
2965 This is used only for ASN1 purposes (so far).
2966 [Nils Larsch <nla@trustcenter.de>]
2968 *) Add 'field_type' member to EC_METHOD, which holds the NID
2969 of the appropriate field type OID. The new function
2970 EC_METHOD_get_field_type() returns this value.
2971 [Nils Larsch <nla@trustcenter.de>]
2976 EC_POINT_point2hex()
2977 EC_POINT_hex2point()
2978 providing useful interfaces to EC_POINT_point2oct() and
2979 EC_POINT_oct2point().
2980 [Nils Larsch <nla@trustcenter.de>]
2982 *) Change internals of the EC library so that the functions
2983 EC_GROUP_set_generator()
2984 EC_GROUP_get_generator()
2985 EC_GROUP_get_order()
2986 EC_GROUP_get_cofactor()
2987 are implemented directly in crypto/ec/ec_lib.c and not dispatched
2988 to methods, which would lead to unnecessary code duplication when
2989 adding different types of curves.
2990 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
2992 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
2993 arithmetic, and such that modified wNAFs are generated
2994 (which avoid length expansion in many cases).
2997 *) Add a function EC_GROUP_check_discriminant() (defined via
2998 EC_METHOD) that verifies that the curve discriminant is non-zero.
3000 Add a function EC_GROUP_check() that makes some sanity tests
3001 on a EC_GROUP, its generator and order. This includes
3002 EC_GROUP_check_discriminant().
3003 [Nils Larsch <nla@trustcenter.de>]
3005 *) Add ECDSA in new directory crypto/ecdsa/.
3007 Add applications 'openssl ecparam' and 'openssl ecdsa'
3008 (these are based on 'openssl dsaparam' and 'openssl dsa').
3010 ECDSA support is also included in various other files across the
3011 library. Most notably,
3012 - 'openssl req' now has a '-newkey ecdsa:file' option;
3013 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
3014 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
3015 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
3016 them suitable for ECDSA where domain parameters must be
3017 extracted before the specific public key;
3018 - ECDSA engine support has been added.
3019 [Nils Larsch <nla@trustcenter.de>]
3021 *) Include some named elliptic curves, and add OIDs from X9.62,
3022 SECG, and WAP/WTLS. Each curve can be obtained from the new
3024 EC_GROUP_new_by_curve_name(),
3025 and the list of available named curves can be obtained with
3026 EC_get_builtin_curves().
3027 Also add a 'curve_name' member to EC_GROUP objects, which can be
3029 EC_GROUP_set_curve_name()
3030 EC_GROUP_get_curve_name()
3031 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
3033 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3034 was actually never needed) and in BN_mul(). The removal in BN_mul()
3035 required a small change in bn_mul_part_recursive() and the addition
3036 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3037 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3038 bn_sub_words() and bn_add_words() except they take arrays with
3042 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
3044 *) Cleanse PEM buffers before freeing them since they may contain
3046 [Benjamin Bennett <ben@psc.edu>]
3048 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3049 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3050 authentication-only ciphersuites.
3053 *) Since AES128 and AES256 share a single mask bit in the logic of
3054 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3055 kludge to work properly if AES128 is available and AES256 isn't.
3058 *) Expand security boundary to match 1.1.1 module.
3061 *) Remove redundant features: hash file source, editing of test vectors
3062 modify fipsld to use external fips_premain.c signature.
3065 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3066 run algorithm test programs.
3069 *) Make algorithm test programs more tolerant of whitespace.
3072 *) Have SSL/TLS server implementation tolerate "mismatched" record
3073 protocol version while receiving ClientHello even if the
3074 ClientHello is fragmented. (The server can't insist on the
3075 particular protocol version it has chosen before the ServerHello
3076 message has informed the client about his choice.)
3079 *) Load error codes if they are not already present instead of using a
3080 static variable. This allows them to be cleanly unloaded and reloaded.
3083 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3085 *) Introduce limits to prevent malicious keys being able to
3086 cause a denial of service. (CVE-2006-2940)
3087 [Steve Henson, Bodo Moeller]
3089 *) Fix ASN.1 parsing of certain invalid structures that can result
3090 in a denial of service. (CVE-2006-2937) [Steve Henson]
3092 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3093 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3095 *) Fix SSL client code which could crash if connecting to a
3096 malicious SSLv2 server. (CVE-2006-4343)
3097 [Tavis Ormandy and Will Drewry, Google Security Team]
3099 *) Change ciphersuite string processing so that an explicit
3100 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3101 will no longer include "AES128-SHA"), and any other similar
3102 ciphersuite (same bitmap) from *other* protocol versions (so that
3103 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3104 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3105 changes from 0.9.8b and 0.9.8d.
3108 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3110 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3111 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3113 *) Change the Unix randomness entropy gathering to use poll() when
3114 possible instead of select(), since the latter has some
3115 undesirable limitations.
3116 [Darryl Miles via Richard Levitte and Bodo Moeller]
3118 *) Disable rogue ciphersuites:
3120 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3121 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3122 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3124 The latter two were purportedly from
3125 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3128 Also deactive the remaining ciphersuites from
3129 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3130 unofficial, and the ID has long expired.
3133 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3134 dual-core machines) and other potential thread-safety issues.
3137 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3139 *) Adapt fipsld and the build system to link against the validated FIPS
3140 module in FIPS mode.
3143 *) Fixes for VC++ 2005 build under Windows.
3146 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3147 from a Windows bash shell such as MSYS. It is autodetected from the
3148 "config" script when run from a VC++ environment. Modify standard VC++
3149 build to use fipscanister.o from the GNU make build.
3152 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3154 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3155 The value now differs depending on if you build for FIPS or not.
3156 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3157 safely run with a non-FIPSed libcrypto, as it may crash because of
3158 the difference induced by this change.
3161 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3163 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3164 (part of SSL_OP_ALL). This option used to disable the
3165 countermeasure against man-in-the-middle protocol-version
3166 rollback in the SSL 2.0 server implementation, which is a bad
3167 idea. (CVE-2005-2969)
3169 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3170 for Information Security, National Institute of Advanced Industrial
3171 Science and Technology [AIST], Japan)]
3173 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3174 mainly for FIPS compliance and not fully integrated at this stage.
3177 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3178 the exponentiation using a fixed-length exponent. (Otherwise,
3179 the information leaked through timing could expose the secret key
3180 after many signatures; cf. Bleichenbacher's attack on DSA with
3184 *) Make a new fixed-window mod_exp implementation the default for
3185 RSA, DSA, and DH private-key operations so that the sequence of
3186 squares and multiplies and the memory access pattern are
3187 independent of the particular secret key. This will mitigate
3188 cache-timing and potential related attacks.
3190 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3191 and this is automatically used by BN_mod_exp_mont() if the new flag
3192 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3193 will use this BN flag for private exponents unless the flag
3194 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3195 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3197 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3199 *) Change the client implementation for SSLv23_method() and
3200 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3201 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3202 (Previously, the SSL 2.0 backwards compatible Client Hello
3203 message format would be used even with SSL_OP_NO_SSLv2.)
3206 *) Add support for smime-type MIME parameter in S/MIME messages which some
3210 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3211 a threadsafe manner. Modify rsa code to use new function and add calls
3212 to dsa and dh code (which had race conditions before).
3215 *) Include the fixed error library code in the C error file definitions
3216 instead of fixing them up at runtime. This keeps the error code
3217 structures constant.
3220 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3222 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3225 *) Fixes for newer kerberos headers. NB: the casts are needed because
3226 the 'length' field is signed on one version and unsigned on another
3227 with no (?) obvious way to tell the difference, without these VC++
3228 complains. Also the "definition" of FAR (blank) is no longer included
3229 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3230 some needed definitions.
3233 *) Undo Cygwin change.
3236 *) Added support for proxy certificates according to RFC 3820.
3237 Because they may be a security thread to unaware applications,
3238 they must be explicitely allowed in run-time. See
3239 docs/HOWTO/proxy_certificates.txt for further information.
3242 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3244 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3245 server and client random values. Previously
3246 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3247 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3249 This change has negligible security impact because:
3251 1. Server and client random values still have 24 bytes of pseudo random
3254 2. Server and client random values are sent in the clear in the initial
3257 3. The master secret is derived using the premaster secret (48 bytes in
3258 size for static RSA ciphersuites) as well as client server and random
3261 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3264 [Stephen Henson, reported by UK NISCC]
3266 *) Use Windows randomness collection on Cygwin.
3269 *) Fix hang in EGD/PRNGD query when communication socket is closed
3270 prematurely by EGD/PRNGD.
3271 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3273 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3276 *) Back-port of selected performance improvements from development
3277 branch, as well as improved support for PowerPC platforms.
3280 *) Add lots of checks for memory allocation failure, error codes to indicate
3281 failure and freeing up memory if a failure occurs.
3282 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3284 *) Add new -passin argument to dgst.
3287 *) Perform some character comparisons of different types in X509_NAME_cmp:
3288 this is needed for some certificates that reencode DNs into UTF8Strings
3289 (in violation of RFC3280) and can't or wont issue name rollover
3293 *) Make an explicit check during certificate validation to see that
3294 the CA setting in each certificate on the chain is correct. As a
3295 side effect always do the following basic checks on extensions,
3296 not just when there's an associated purpose to the check:
3298 - if there is an unhandled critical extension (unless the user
3299 has chosen to ignore this fault)
3300 - if the path length has been exceeded (if one is set at all)
3301 - that certain extensions fit the associated purpose (if one has
3305 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3307 *) Avoid a race condition when CRLs are checked in a multi threaded
3308 environment. This would happen due to the reordering of the revoked
3309 entries during signature checking and serial number lookup. Now the
3310 encoding is cached and the serial number sort performed under a lock.
3311 Add new STACK function sk_is_sorted().
3314 *) Add Delta CRL to the extension code.
3317 *) Various fixes to s3_pkt.c so alerts are sent properly.
3318 [David Holmes <d.holmes@f5.com>]
3320 *) Reduce the chances of duplicate issuer name and serial numbers (in
3321 violation of RFC3280) using the OpenSSL certificate creation utilities.
3322 This is done by creating a random 64 bit value for the initial serial
3323 number when a serial number file is created or when a self signed
3324 certificate is created using 'openssl req -x509'. The initial serial
3325 number file is created using 'openssl x509 -next_serial' in CA.pl
3326 rather than being initialized to 1.
3329 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3331 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3332 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3333 [Joe Orton, Steve Henson]
3335 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3337 [Joe Orton, Steve Henson]
3339 *) Make it possible to have multiple active certificates with the same
3340 subject in the CA index file. This is done only if the keyword
3341 'unique_subject' is set to 'no' in the main CA section (default
3342 if 'CA_default') of the configuration file. The value is saved
3343 with the database itself in a separate index attribute file,
3344 named like the index file with '.attr' appended to the name.
3347 *) X509 verify fixes. Disable broken certificate workarounds when
3348 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3349 keyUsage extension present. Don't accept CRLs with unhandled critical
3350 extensions: since verify currently doesn't process CRL extensions this
3351 rejects a CRL with *any* critical extensions. Add new verify error codes
3355 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3356 A clarification of RFC2560 will require the use of OCTET STRINGs and
3357 some implementations cannot handle the current raw format. Since OpenSSL
3358 copies and compares OCSP nonces as opaque blobs without any attempt at
3359 parsing them this should not create any compatibility issues.
3362 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3363 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3364 this HMAC (and other) operations are several times slower than OpenSSL
3368 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3369 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3371 *) Use the correct content when signing type "other".
3374 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3376 *) Fix various bugs revealed by running the NISCC test suite:
3378 Stop out of bounds reads in the ASN1 code when presented with
3379 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3381 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3383 If verify callback ignores invalid public key errors don't try to check
3384 certificate signature with the NULL public key.
3388 *) New -ignore_err option in ocsp application to stop the server
3389 exiting on the first error in a request.
3392 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3393 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3397 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3398 extra data after the compression methods not only for TLS 1.0
3399 but also for SSL 3.0 (as required by the specification).
3400 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3402 *) Change X509_certificate_type() to mark the key as exported/exportable
3403 when it's 512 *bits* long, not 512 bytes.
3406 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3407 blocks during encryption.
3410 *) Various fixes to base64 BIO and non blocking I/O. On write
3411 flushes were not handled properly if the BIO retried. On read
3412 data was not being buffered properly and had various logic bugs.
3413 This also affects blocking I/O when the data being decoded is a
3417 *) Various S/MIME bugfixes and compatibility changes:
3418 output correct application/pkcs7 MIME type if
3419 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3420 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3421 of files as .eml work). Correctly handle very long lines in MIME
3425 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3427 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3428 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3429 a protocol version number mismatch like a decryption error
3430 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3433 *) Turn on RSA blinding by default in the default implementation
3434 to avoid a timing attack. Applications that don't want it can call
3435 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3436 They would be ill-advised to do so in most cases.
3437 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3439 *) Change RSA blinding code so that it works when the PRNG is not
3440 seeded (in this case, the secret RSA exponent is abused as
3441 an unpredictable seed -- if it is not unpredictable, there
3442 is no point in blinding anyway). Make RSA blinding thread-safe
3443 by remembering the creator's thread ID in rsa->blinding and
3444 having all other threads use local one-time blinding factors
3445 (this requires more computation than sharing rsa->blinding, but
3446 avoids excessive locking; and if an RSA object is not shared
3447 between threads, blinding will still be very fast).
3450 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3451 ENGINE as defaults for all supported algorithms irrespective of
3452 the 'flags' parameter. 'flags' is now honoured, so applications
3453 should make sure they are passing it correctly.
3456 *) Target "mingw" now allows native Windows code to be generated in
3457 the Cygwin environment as well as with the MinGW compiler.
3460 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3462 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3463 via timing by performing a MAC computation even if incorrrect
3464 block cipher padding has been found. This is a countermeasure
3465 against active attacks where the attacker has to distinguish
3466 between bad padding and a MAC verification error. (CVE-2003-0078)
3468 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3469 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3470 Martin Vuagnoux (EPFL, Ilion)]
3472 *) Make the no-err option work as intended. The intention with no-err
3473 is not to have the whole error stack handling routines removed from
3474 libcrypto, it's only intended to remove all the function name and
3475 reason texts, thereby removing some of the footprint that may not
3476 be interesting if those errors aren't displayed anyway.
3478 NOTE: it's still possible for any application or module to have it's
3479 own set of error texts inserted. The routines are there, just not
3480 used by default when no-err is given.
3483 *) Add support for FreeBSD on IA64.
3484 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3486 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3487 Kerberos function mit_des_cbc_cksum(). Before this change,
3488 the value returned by DES_cbc_cksum() was like the one from
3489 mit_des_cbc_cksum(), except the bytes were swapped.
3490 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3492 *) Allow an application to disable the automatic SSL chain building.
3493 Before this a rather primitive chain build was always performed in
3494 ssl3_output_cert_chain(): an application had no way to send the
3495 correct chain if the automatic operation produced an incorrect result.
3497 Now the chain builder is disabled if either:
3499 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3501 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3503 The reasoning behind this is that an application would not want the
3504 auto chain building to take place if extra chain certificates are
3505 present and it might also want a means of sending no additional
3506 certificates (for example the chain has two certificates and the
3510 *) Add the possibility to build without the ENGINE framework.
3511 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3513 *) Under Win32 gmtime() can return NULL: check return value in
3514 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3517 *) DSA routines: under certain error conditions uninitialized BN objects
3518 could be freed. Solution: make sure initialization is performed early
3519 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3520 Nils Larsch <nla@trustcenter.de> via PR#459)
3523 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3524 checked on reconnect on the client side, therefore session resumption
3525 could still fail with a "ssl session id is different" error. This
3526 behaviour is masked when SSL_OP_ALL is used due to
3527 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3528 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3529 followup to PR #377.
3532 *) IA-32 assembler support enhancements: unified ELF targets, support
3533 for SCO/Caldera platforms, fix for Cygwin shared build.
3536 *) Add support for FreeBSD on sparc64. As a consequence, support for
3537 FreeBSD on non-x86 processors is separate from x86 processors on
3538 the config script, much like the NetBSD support.
3539 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3541 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3543 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3546 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3547 code (06) was taken as the first octet of the session ID and the last
3548 octet was ignored consequently. As a result SSLv2 client side session
3549 caching could not have worked due to the session ID mismatch between
3551 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3555 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3556 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3560 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3561 seems that in spite of existing for more than a year, many application
3562 author have done nothing to provide the necessary callbacks, which
3563 means that this particular engine will not work properly anywhere.
3564 This is a very unfortunate situation which forces us, in the name
3565 of usability, to give the hw_ncipher.c a static lock, which is part
3567 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3568 appear in 0.9.8 or later. We EXPECT application authors to have
3569 dealt properly with this when 0.9.8 is released (unless we actually
3570 make such changes in the libcrypto locking code that changes will
3571 have to be made anyway).
3574 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3575 octets have been read, EOF or an error occurs. Without this change
3576 some truncated ASN1 structures will not produce an error.
3579 *) Disable Heimdal support, since it hasn't been fully implemented.
3580 Still give the possibility to force the use of Heimdal, but with
3581 warnings and a request that patches get sent to openssl-dev.
3584 *) Add the VC-CE target, introduce the WINCE sysname, and add
3585 INSTALL.WCE and appropriate conditionals to make it build.
3586 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3588 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3589 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3590 edit numbers of the version.
3591 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3593 *) Introduce safe string copy and catenation functions
3594 (BUF_strlcpy() and BUF_strlcat()).
3595 [Ben Laurie (CHATS) and Richard Levitte]
3597 *) Avoid using fixed-size buffers for one-line DNs.
3598 [Ben Laurie (CHATS)]
3600 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3601 resizing buffers containing secrets, and use where appropriate.
3602 [Ben Laurie (CHATS)]
3604 *) Avoid using fixed size buffers for configuration file location.
3605 [Ben Laurie (CHATS)]
3607 *) Avoid filename truncation for various CA files.
3608 [Ben Laurie (CHATS)]
3610 *) Use sizeof in preference to magic numbers.
3611 [Ben Laurie (CHATS)]
3613 *) Avoid filename truncation in cert requests.
3614 [Ben Laurie (CHATS)]
3616 *) Add assertions to check for (supposedly impossible) buffer
3618 [Ben Laurie (CHATS)]
3620 *) Don't cache truncated DNS entries in the local cache (this could
3621 potentially lead to a spoofing attack).
3622 [Ben Laurie (CHATS)]
3624 *) Fix various buffers to be large enough for hex/decimal
3625 representations in a platform independent manner.
3626 [Ben Laurie (CHATS)]
3628 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3629 resizing buffers containing secrets, and use where appropriate.
3630 [Ben Laurie (CHATS)]
3632 *) Add BIO_indent() to avoid much slightly worrying code to do
3634 [Ben Laurie (CHATS)]
3636 *) Convert sprintf()/BIO_puts() to BIO_printf().
3637 [Ben Laurie (CHATS)]
3639 *) buffer_gets() could terminate with the buffer only half
3641 [Ben Laurie (CHATS)]
3643 *) Add assertions to prevent user-supplied crypto functions from
3644 overflowing internal buffers by having large block sizes, etc.
3645 [Ben Laurie (CHATS)]
3647 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3649 [Ben Laurie (CHATS)]
3651 *) Eliminate unused copy of key in RC4.
3652 [Ben Laurie (CHATS)]
3654 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3655 [Ben Laurie (CHATS)]
3657 *) Fix off-by-one error in EGD path.
3658 [Ben Laurie (CHATS)]
3660 *) If RANDFILE path is too long, ignore instead of truncating.
3661 [Ben Laurie (CHATS)]
3663 *) Eliminate unused and incorrectly sized X.509 structure
3665 [Ben Laurie (CHATS)]
3667 *) Eliminate unused and dangerous function knumber().
3668 [Ben Laurie (CHATS)]
3670 *) Eliminate unused and dangerous structure, KSSL_ERR.
3671 [Ben Laurie (CHATS)]
3673 *) Protect against overlong session ID context length in an encoded
3674 session object. Since these are local, this does not appear to be
3676 [Ben Laurie (CHATS)]
3678 *) Change from security patch (see 0.9.6e below) that did not affect
3679 the 0.9.6 release series:
3681 Remote buffer overflow in SSL3 protocol - an attacker could
3682 supply an oversized master key in Kerberos-enabled versions.
3684 [Ben Laurie (CHATS)]
3686 *) Change the SSL kerb5 codes to match RFC 2712.
3689 *) Make -nameopt work fully for req and add -reqopt switch.
3690 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3692 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3693 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3695 *) Make sure tests can be performed even if the corresponding algorithms
3696 have been removed entirely. This was also the last step to make
3697 OpenSSL compilable with DJGPP under all reasonable conditions.
3698 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3700 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3701 to allow version independent disabling of normally unselected ciphers,
3702 which may be activated as a side-effect of selecting a single cipher.
3704 (E.g., cipher list string "RSA" enables ciphersuites that are left
3705 out of "ALL" because they do not provide symmetric encryption.
3706 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3707 [Lutz Jaenicke, Bodo Moeller]
3709 *) Add appropriate support for separate platform-dependent build
3710 directories. The recommended way to make a platform-dependent
3711 build directory is the following (tested on Linux), maybe with
3714 # Place yourself outside of the OpenSSL source tree. In
3715 # this example, the environment variable OPENSSL_SOURCE
3716 # is assumed to contain the absolute OpenSSL source directory.
3717 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3718 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3719 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3720 mkdir -p `dirname $F`
3721 ln -s $OPENSSL_SOURCE/$F $F
3724 To be absolutely sure not to disturb the source tree, a "make clean"
3725 is a good thing. If it isn't successfull, don't worry about it,
3726 it probably means the source directory is very clean.
3729 *) Make sure any ENGINE control commands make local copies of string
3730 pointers passed to them whenever necessary. Otherwise it is possible
3731 the caller may have overwritten (or deallocated) the original string
3732 data when a later ENGINE operation tries to use the stored values.
3733 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3735 *) Improve diagnostics in file reading and command-line digests.
3736 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3738 *) Add AES modes CFB and OFB to the object database. Correct an
3739 error in AES-CFB decryption.
3742 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3743 allows existing EVP_CIPHER_CTX structures to be reused after
3744 calling EVP_*Final(). This behaviour is used by encryption
3745 BIOs and some applications. This has the side effect that
3746 applications must explicitly clean up cipher contexts with
3747 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3750 *) Check the values of dna and dnb in bn_mul_recursive before calling
3751 bn_mul_comba (a non zero value means the a or b arrays do not contain
3752 n2 elements) and fallback to bn_mul_normal if either is not zero.
3755 *) Fix escaping of non-ASCII characters when using the -subj option
3756 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3759 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3760 form for "surname", serialNumber has no short form.
3761 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3762 therefore remove "mail" short name for "internet 7".
3763 The OID for unique identifiers in X509 certificates is
3764 x500UniqueIdentifier, not uniqueIdentifier.
3765 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3768 *) Add an "init" command to the ENGINE config module and auto initialize
3769 ENGINEs. Without any "init" command the ENGINE will be initialized
3770 after all ctrl commands have been executed on it. If init=1 the
3771 ENGINE is initailized at that point (ctrls before that point are run
3772 on the uninitialized ENGINE and after on the initialized one). If
3773 init=0 then the ENGINE will not be iniatialized at all.
3776 *) Fix the 'app_verify_callback' interface so that the user-defined
3777 argument is actually passed to the callback: In the
3778 SSL_CTX_set_cert_verify_callback() prototype, the callback
3779 declaration has been changed from
3782 int (*cb)(X509_STORE_CTX *,void *);
3783 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3784 i=s->ctx->app_verify_callback(&ctx)
3785 has been changed into
3786 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3788 To update applications using SSL_CTX_set_cert_verify_callback(),
3789 a dummy argument can be added to their callback functions.
3790 [D. K. Smetters <smetters@parc.xerox.com>]
3792 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3793 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3795 *) Add and OPENSSL_LOAD_CONF define which will cause
3796 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3797 This allows older applications to transparently support certain
3798 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3799 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3800 load the config file and OPENSSL_add_all_algorithms_conf() which will
3801 always load it have also been added.
3804 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3805 Adjust NIDs and EVP layer.
3806 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3808 *) Config modules support in openssl utility.
3810 Most commands now load modules from the config file,
3811 though in a few (such as version) this isn't done
3812 because it couldn't be used for anything.
3814 In the case of ca and req the config file used is
3815 the same as the utility itself: that is the -config
3816 command line option can be used to specify an
3820 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3821 use "openssl_conf" if filename is NULL use default openssl config file.
3824 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3825 config section name. Add a new flag to tolerate a missing config file
3826 and move code to CONF_modules_load_file().
3829 *) Support for crypto accelerator cards from Accelerated Encryption
3830 Processing, www.aep.ie. (Use engine 'aep')
3831 The support was copied from 0.9.6c [engine] and adapted/corrected
3832 to work with the new engine framework.
3833 [AEP Inc. and Richard Levitte]
3835 *) Support for SureWare crypto accelerator cards from Baltimore
3836 Technologies. (Use engine 'sureware')
3837 The support was copied from 0.9.6c [engine] and adapted
3838 to work with the new engine framework.
3841 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3842 make the newer ENGINE framework commands for the CHIL engine work.
3843 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3845 *) Make it possible to produce shared libraries on ReliantUNIX.
3846 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3848 *) Add the configuration target debug-linux-ppro.
3849 Make 'openssl rsa' use the general key loading routines
3850 implemented in apps.c, and make those routines able to
3851 handle the key format FORMAT_NETSCAPE and the variant
3853 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3855 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3856 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3858 *) Add -keyform to rsautl, and document -engine.
3859 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
3861 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
3862 BIO_R_NO_SUCH_FILE error code rather than the generic
3863 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
3866 *) Add new functions
3868 ERR_peek_last_error_line
3869 ERR_peek_last_error_line_data.
3870 These are similar to
3873 ERR_peek_error_line_data,
3874 but report on the latest error recorded rather than the first one
3875 still in the error queue.
3876 [Ben Laurie, Bodo Moeller]
3878 *) default_algorithms option in ENGINE config module. This allows things
3880 default_algorithms = ALL
3881 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
3884 *) Prelminary ENGINE config module.
3887 *) New experimental application configuration code.
3890 *) Change the AES code to follow the same name structure as all other
3891 symmetric ciphers, and behave the same way. Move everything to
3892 the directory crypto/aes, thereby obsoleting crypto/rijndael.
3893 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3895 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
3896 [Ben Laurie and Theo de Raadt]
3898 *) Add option to output public keys in req command.
3899 [Massimiliano Pala madwolf@openca.org]
3901 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
3902 (up to about 10% better than before for P-192 and P-224).
3905 *) New functions/macros
3907 SSL_CTX_set_msg_callback(ctx, cb)
3908 SSL_CTX_set_msg_callback_arg(ctx, arg)
3909 SSL_set_msg_callback(ssl, cb)
3910 SSL_set_msg_callback_arg(ssl, arg)
3912 to request calling a callback function
3914 void cb(int write_p, int version, int content_type,
3915 const void *buf, size_t len, SSL *ssl, void *arg)
3917 whenever a protocol message has been completely received
3918 (write_p == 0) or sent (write_p == 1). Here 'version' is the
3919 protocol version according to which the SSL library interprets
3920 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
3921 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
3922 the content type as defined in the SSL 3.0/TLS 1.0 protocol
3923 specification (change_cipher_spec(20), alert(21), handshake(22)).
3924 'buf' and 'len' point to the actual message, 'ssl' to the
3925 SSL object, and 'arg' is the application-defined value set by
3926 SSL[_CTX]_set_msg_callback_arg().
3928 'openssl s_client' and 'openssl s_server' have new '-msg' options
3929 to enable a callback that displays all protocol messages.
3932 *) Change the shared library support so shared libraries are built as
3933 soon as the corresponding static library is finished, and thereby get
3934 openssl and the test programs linked against the shared library.
3935 This still only happens when the keyword "shard" has been given to
3936 the configuration scripts.
3938 NOTE: shared library support is still an experimental thing, and
3939 backward binary compatibility is still not guaranteed.
3940 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
3942 *) Add support for Subject Information Access extension.
3943 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3945 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
3946 additional bytes when new memory had to be allocated, not just
3947 when reusing an existing buffer.
3950 *) New command line and configuration option 'utf8' for the req command.
3951 This allows field values to be specified as UTF8 strings.
3954 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
3955 runs for the former and machine-readable output for the latter.
3958 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
3959 of the e-mail address in the DN (i.e., it will go into a certificate
3960 extension only). The new configuration file option 'email_in_dn = no'
3961 has the same effect.
3962 [Massimiliano Pala madwolf@openca.org]
3964 *) Change all functions with names starting with des_ to be starting
3965 with DES_ instead. Add wrappers that are compatible with libdes,
3966 but are named _ossl_old_des_*. Finally, add macros that map the
3967 des_* symbols to the corresponding _ossl_old_des_* if libdes
3968 compatibility is desired. If OpenSSL 0.9.6c compatibility is
3969 desired, the des_* symbols will be mapped to DES_*, with one
3972 Since we provide two compatibility mappings, the user needs to
3973 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
3974 compatibility is desired. The default (i.e., when that macro
3975 isn't defined) is OpenSSL 0.9.6c compatibility.
3977 There are also macros that enable and disable the support of old
3978 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
3979 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
3980 are defined, the default will apply: to support the old des routines.
3982 In either case, one must include openssl/des.h to get the correct
3983 definitions. Do not try to just include openssl/des_old.h, that
3986 NOTE: This is a major break of an old API into a new one. Software
3987 authors are encouraged to switch to the DES_ style functions. Some
3988 time in the future, des_old.h and the libdes compatibility functions
3989 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
3990 default), and then completely removed.
3993 *) Test for certificates which contain unsupported critical extensions.
3994 If such a certificate is found during a verify operation it is
3995 rejected by default: this behaviour can be overridden by either
3996 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
3997 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
3998 X509_supported_extension() has also been added which returns 1 if a
3999 particular extension is supported.
4002 *) Modify the behaviour of EVP cipher functions in similar way to digests
4003 to retain compatibility with existing code.
4006 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
4007 compatibility with existing code. In particular the 'ctx' parameter does
4008 not have to be to be initialized before the call to EVP_DigestInit() and
4009 it is tidied up after a call to EVP_DigestFinal(). New function
4010 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
4011 EVP_MD_CTX_copy() changed to not require the destination to be
4012 initialized valid and new function EVP_MD_CTX_copy_ex() added which
4013 requires the destination to be valid.
4015 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
4016 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
4019 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
4020 so that complete 'Handshake' protocol structures are kept in memory
4021 instead of overwriting 'msg_type' and 'length' with 'body' data.
4024 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
4025 [Massimo Santin via Richard Levitte]
4027 *) Major restructuring to the underlying ENGINE code. This includes
4028 reduction of linker bloat, separation of pure "ENGINE" manipulation
4029 (initialisation, etc) from functionality dealing with implementations
4030 of specific crypto iterfaces. This change also introduces integrated
4031 support for symmetric ciphers and digest implementations - so ENGINEs
4032 can now accelerate these by providing EVP_CIPHER and EVP_MD
4033 implementations of their own. This is detailed in crypto/engine/README
4034 as it couldn't be adequately described here. However, there are a few
4035 API changes worth noting - some RSA, DSA, DH, and RAND functions that
4036 were changed in the original introduction of ENGINE code have now
4037 reverted back - the hooking from this code to ENGINE is now a good
4038 deal more passive and at run-time, operations deal directly with
4039 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
4040 dereferencing through an ENGINE pointer any more. Also, the ENGINE
4041 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
4042 they were not being used by the framework as there is no concept of a
4043 BIGNUM_METHOD and they could not be generalised to the new
4044 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
4045 ENGINE_cpy() has been removed as it cannot be consistently defined in
4049 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
4052 *) Change mkdef.pl to sort symbols that get the same entry number,
4053 and make sure the automatically generated functions ERR_load_*
4054 become part of libeay.num as well.
4057 *) New function SSL_renegotiate_pending(). This returns true once
4058 renegotiation has been requested (either SSL_renegotiate() call
4059 or HelloRequest/ClientHello receveived from the peer) and becomes
4060 false once a handshake has been completed.
4061 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
4062 sends a HelloRequest, but does not ensure that a handshake takes
4063 place. SSL_renegotiate_pending() is useful for checking if the
4064 client has followed the request.)
4067 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
4068 By default, clients may request session resumption even during
4069 renegotiation (if session ID contexts permit); with this option,
4070 session resumption is possible only in the first handshake.
4072 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
4073 more bits available for options that should not be part of
4074 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
4077 *) Add some demos for certificate and certificate request creation.
4080 *) Make maximum certificate chain size accepted from the peer application
4081 settable (SSL*_get/set_max_cert_list()), as proposed by
4082 "Douglas E. Engert" <deengert@anl.gov>.
4085 *) Add support for shared libraries for Unixware-7
4086 (Boyd Lynn Gerber <gerberb@zenez.com>).
4089 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
4090 be done prior to destruction. Use this to unload error strings from
4091 ENGINEs that load their own error strings. NB: This adds two new API
4092 functions to "get" and "set" this destroy handler in an ENGINE.
4095 *) Alter all existing ENGINE implementations (except "openssl" and
4096 "openbsd") to dynamically instantiate their own error strings. This
4097 makes them more flexible to be built both as statically-linked ENGINEs
4098 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
4099 Also, add stub code to each that makes building them as self-contained
4100 shared-libraries easier (see README.ENGINE).
4103 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
4104 implementations into applications that are completely implemented in
4105 self-contained shared-libraries. The "dynamic" ENGINE exposes control
4106 commands that can be used to configure what shared-library to load and
4107 to control aspects of the way it is handled. Also, made an update to
4108 the README.ENGINE file that brings its information up-to-date and
4109 provides some information and instructions on the "dynamic" ENGINE
4110 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4113 *) Make it possible to unload ranges of ERR strings with a new
4114 "ERR_unload_strings" function.
4117 *) Add a copy() function to EVP_MD.
4120 *) Make EVP_MD routines take a context pointer instead of just the
4121 md_data void pointer.
4124 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4125 that the digest can only process a single chunk of data
4126 (typically because it is provided by a piece of
4127 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4128 is only going to provide a single chunk of data, and hence the
4129 framework needn't accumulate the data for oneshot drivers.
4132 *) As with "ERR", make it possible to replace the underlying "ex_data"
4133 functions. This change also alters the storage and management of global
4134 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4135 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4136 index counters. The API functions that use this state have been changed
4137 to take a "class_index" rather than pointers to the class's local STACK
4138 and counter, and there is now an API function to dynamically create new
4139 classes. This centralisation allows us to (a) plug a lot of the
4140 thread-safety problems that existed, and (b) makes it possible to clean
4141 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4142 such data would previously have always leaked in application code and
4143 workarounds were in place to make the memory debugging turn a blind eye
4144 to it. Application code that doesn't use this new function will still
4145 leak as before, but their memory debugging output will announce it now
4146 rather than letting it slide.
4148 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4149 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4150 has a return value to indicate success or failure.
4153 *) Make it possible to replace the underlying "ERR" functions such that the
4154 global state (2 LHASH tables and 2 locks) is only used by the "default"
4155 implementation. This change also adds two functions to "get" and "set"
4156 the implementation prior to it being automatically set the first time
4157 any other ERR function takes place. Ie. an application can call "get",
4158 pass the return value to a module it has just loaded, and that module
4159 can call its own "set" function using that value. This means the
4160 module's "ERR" operations will use (and modify) the error state in the
4161 application and not in its own statically linked copy of OpenSSL code.
4164 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4165 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4166 the operation, and provides a more encapsulated way for external code
4167 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4168 to use these functions rather than manually incrementing the counts.
4170 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4173 *) Add EVP test program.
4176 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4179 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4180 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4181 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4182 These allow a CRL to be built without having to access X509_CRL fields
4183 directly. Modify 'ca' application to use new functions.
4186 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4187 bug workarounds. Rollback attack detection is a security feature.
4188 The problem will only arise on OpenSSL servers when TLSv1 is not
4189 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4190 Software authors not wanting to support TLSv1 will have special reasons
4191 for their choice and can explicitly enable this option.
4192 [Bodo Moeller, Lutz Jaenicke]
4194 *) Rationalise EVP so it can be extended: don't include a union of
4195 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4196 (similar to those existing for EVP_CIPHER_CTX).
4201 EVP_MD_CTX_init(&md); /* new function call */
4202 EVP_DigestInit(&md, EVP_sha1());
4203 EVP_DigestUpdate(&md, in, len);
4204 EVP_DigestFinal(&md, out, NULL);
4205 EVP_MD_CTX_cleanup(&md); /* new function call */
4209 *) Make DES key schedule conform to the usual scheme, as well as
4210 correcting its structure. This means that calls to DES functions
4211 now have to pass a pointer to a des_key_schedule instead of a
4212 plain des_key_schedule (which was actually always a pointer
4215 des_key_schedule ks;
4217 des_set_key_checked(..., &ks);
4218 des_ncbc_encrypt(..., &ks, ...);
4220 (Note that a later change renames 'des_...' into 'DES_...'.)
4223 *) Initial reduction of linker bloat: the use of some functions, such as
4224 PEM causes large amounts of unused functions to be linked in due to
4225 poor organisation. For example pem_all.c contains every PEM function
4226 which has a knock on effect of linking in large amounts of (unused)
4227 ASN1 code. Grouping together similar functions and splitting unrelated
4228 functions prevents this.
4231 *) Cleanup of EVP macros.
4234 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4235 correct _ecb suffix.
4238 *) Add initial OCSP responder support to ocsp application. The
4239 revocation information is handled using the text based index
4240 use by the ca application. The responder can either handle
4241 requests generated internally, supplied in files (for example
4242 via a CGI script) or using an internal minimal server.
4245 *) Add configuration choices to get zlib compression for TLS.
4248 *) Changes to Kerberos SSL for RFC 2712 compliance:
4249 1. Implemented real KerberosWrapper, instead of just using
4250 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4251 2. Implemented optional authenticator field of KerberosWrapper.
4253 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4254 and authenticator structs; see crypto/krb5/.
4256 Generalized Kerberos calls to support multiple Kerberos libraries.
4257 [Vern Staats <staatsvr@asc.hpc.mil>,
4258 Jeffrey Altman <jaltman@columbia.edu>
4259 via Richard Levitte]
4261 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4262 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4263 values for each of the key sizes rather than having just
4264 parameters (and 'speed' generating keys each time).
4267 *) Speed up EVP routines.
4270 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4271 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4272 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4273 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4275 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4276 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4277 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4280 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4282 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4285 *) Added the OS2-EMX target.
4286 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4288 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4289 to support NCONF routines in extension code. New function CONF_set_nconf()
4290 to allow functions which take an NCONF to also handle the old LHASH
4291 structure: this means that the old CONF compatible routines can be
4292 retained (in particular wrt extensions) without having to duplicate the
4293 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4296 *) Enhance the general user interface with mechanisms for inner control
4297 and with possibilities to have yes/no kind of prompts.
4300 *) Change all calls to low level digest routines in the library and
4301 applications to use EVP. Add missing calls to HMAC_cleanup() and
4302 don't assume HMAC_CTX can be copied using memcpy().
4303 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4305 *) Add the possibility to control engines through control names but with
4306 arbitrary arguments instead of just a string.
4307 Change the key loaders to take a UI_METHOD instead of a callback
4308 function pointer. NOTE: this breaks binary compatibility with earlier
4309 versions of OpenSSL [engine].
4310 Adapt the nCipher code for these new conditions and add a card insertion
4314 *) Enhance the general user interface with mechanisms to better support
4315 dialog box interfaces, application-defined prompts, the possibility
4316 to use defaults (for example default passwords from somewhere else)
4317 and interrupts/cancellations.
4320 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4321 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4324 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4325 tidy up some unnecessarily weird code in 'sk_new()').
4326 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4328 *) Change the key loading routines for ENGINEs to use the same kind
4329 callback (pem_password_cb) as all other routines that need this
4333 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4334 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4335 than this minimum value is recommended.
4338 *) New random seeder for OpenVMS, using the system process statistics
4339 that are easily reachable.
4342 *) Windows apparently can't transparently handle global
4343 variables defined in DLLs. Initialisations such as:
4345 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4347 wont compile. This is used by the any applications that need to
4348 declare their own ASN1 modules. This was fixed by adding the option
4349 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4350 needed for static libraries under Win32.
4353 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4354 setting of purpose and trust fields. New X509_STORE trust and
4355 purpose functions and tidy up setting in other SSL functions.
4358 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4359 structure. These are inherited by X509_STORE_CTX when it is
4360 initialised. This allows various defaults to be set in the
4361 X509_STORE structure (such as flags for CRL checking and custom
4362 purpose or trust settings) for functions which only use X509_STORE_CTX
4363 internally such as S/MIME.
4365 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4366 trust settings if they are not set in X509_STORE. This allows X509_STORE
4367 purposes and trust (in S/MIME for example) to override any set by default.
4369 Add command line options for CRL checking to smime, s_client and s_server
4373 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4374 are set then the CRL is looked up in the X509_STORE structure and
4375 its validity and signature checked, then if the certificate is found
4376 in the CRL the verify fails with a revoked error.
4378 Various new CRL related callbacks added to X509_STORE_CTX structure.
4380 Command line options added to 'verify' application to support this.
4382 This needs some additional work, such as being able to handle multiple
4383 CRLs with different times, extension based lookup (rather than just
4384 by subject name) and ultimately more complete V2 CRL extension
4388 *) Add a general user interface API (crypto/ui/). This is designed
4389 to replace things like des_read_password and friends (backward
4390 compatibility functions using this new API are provided).
4391 The purpose is to remove prompting functions from the DES code
4392 section as well as provide for prompting through dialog boxes in
4393 a window system and the like.
4396 *) Add "ex_data" support to ENGINE so implementations can add state at a
4397 per-structure level rather than having to store it globally.
4400 *) Make it possible for ENGINE structures to be copied when retrieved by
4401 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4402 This causes the "original" ENGINE structure to act like a template,
4403 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4404 operational state can be localised to each ENGINE structure, despite the
4405 fact they all share the same "methods". New ENGINE structures returned in
4406 this case have no functional references and the return value is the single
4407 structural reference. This matches the single structural reference returned
4408 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4412 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4413 needs to match any other type at all we need to manually clear the
4417 *) Changes to the "openssl engine" utility to include;
4418 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4419 about an ENGINE's available control commands.
4420 - executing control commands from command line arguments using the
4421 '-pre' and '-post' switches. '-post' is only used if '-t' is
4422 specified and the ENGINE is successfully initialised. The syntax for
4423 the individual commands are colon-separated, for example;
4424 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4427 *) New dynamic control command support for ENGINEs. ENGINEs can now
4428 declare their own commands (numbers), names (strings), descriptions,
4429 and input types for run-time discovery by calling applications. A
4430 subset of these commands are implicitly classed as "executable"
4431 depending on their input type, and only these can be invoked through
4432 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4433 can be based on user input, config files, etc). The distinction is
4434 that "executable" commands cannot return anything other than a boolean
4435 result and can only support numeric or string input, whereas some
4436 discoverable commands may only be for direct use through
4437 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4438 pointers, or other custom uses. The "executable" commands are to
4439 support parameterisations of ENGINE behaviour that can be
4440 unambiguously defined by ENGINEs and used consistently across any
4441 OpenSSL-based application. Commands have been added to all the
4442 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4443 control over shared-library paths without source code alterations.
4446 *) Changed all ENGINE implementations to dynamically allocate their
4447 ENGINEs rather than declaring them statically. Apart from this being
4448 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4449 this also allows the implementations to compile without using the
4450 internal engine_int.h header.
4453 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4454 'const' value. Any code that should be able to modify a RAND_METHOD
4455 should already have non-const pointers to it (ie. they should only
4456 modify their own ones).
4459 *) Made a variety of little tweaks to the ENGINE code.
4460 - "atalla" and "ubsec" string definitions were moved from header files
4461 to C code. "nuron" string definitions were placed in variables
4462 rather than hard-coded - allowing parameterisation of these values
4463 later on via ctrl() commands.
4464 - Removed unused "#if 0"'d code.
4465 - Fixed engine list iteration code so it uses ENGINE_free() to release
4466 structural references.
4467 - Constified the RAND_METHOD element of ENGINE structures.
4468 - Constified various get/set functions as appropriate and added
4469 missing functions (including a catch-all ENGINE_cpy that duplicates
4470 all ENGINE values onto a new ENGINE except reference counts/state).
4471 - Removed NULL parameter checks in get/set functions. Setting a method
4472 or function to NULL is a way of cancelling out a previously set
4473 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4474 and doesn't justify the extra error symbols and code.
4475 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4476 flags from engine_int.h to engine.h.
4477 - Changed prototypes for ENGINE handler functions (init(), finish(),
4478 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4481 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4482 to the algorithm using long division. The binary algorithm can be
4483 used only if the modulus is odd. On 32-bit systems, it is faster
4484 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4485 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4486 up to 450 bits. In 64-bit environments, the binary algorithm
4487 appears to be advantageous for much longer moduli; here we use it
4488 for moduli up to 2048 bits.
4491 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4492 could not support the combine flag in choice fields.
4495 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4496 extensions from a certificate request to the certificate.
4499 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4500 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4501 file: this allows the display of the certificate about to be
4502 signed to be customised, to allow certain fields to be included
4503 or excluded and extension details. The old system didn't display
4504 multicharacter strings properly, omitted fields not in the policy
4505 and couldn't display additional details such as extensions.
4508 *) Function EC_POINTs_mul for multiple scalar multiplication
4509 of an arbitrary number of elliptic curve points
4510 \sum scalars[i]*points[i],
4511 optionally including the generator defined for the EC_GROUP:
4512 scalar*generator + \sum scalars[i]*points[i].
4514 EC_POINT_mul is a simple wrapper function for the typical case
4515 that the point list has just one item (besides the optional
4519 *) First EC_METHODs for curves over GF(p):
4521 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4522 operations and provides various method functions that can also
4523 operate with faster implementations of modular arithmetic.
4525 EC_GFp_mont_method() reuses most functions that are part of
4526 EC_GFp_simple_method, but uses Montgomery arithmetic.
4528 [Bodo Moeller; point addition and point doubling
4529 implementation directly derived from source code provided by
4530 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4532 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4533 crypto/ec/ec_lib.c):
4535 Curves are EC_GROUP objects (with an optional group generator)
4536 based on EC_METHODs that are built into the library.
4538 Points are EC_POINT objects based on EC_GROUP objects.
4540 Most of the framework would be able to handle curves over arbitrary
4541 finite fields, but as there are no obvious types for fields other
4542 than GF(p), some functions are limited to that for now.
4545 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4546 that the file contains a complete HTTP response.
4549 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4550 change the def and num file printf format specifier from "%-40sXXX"
4551 to "%-39s XXX". The latter will always guarantee a space after the
4552 field while the former will cause them to run together if the field
4553 is 40 of more characters long.
4556 *) Constify the cipher and digest 'method' functions and structures
4557 and modify related functions to take constant EVP_MD and EVP_CIPHER
4561 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4562 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4565 *) Modify EVP_Digest*() routines so they now return values. Although the
4566 internal software routines can never fail additional hardware versions
4570 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4572 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4573 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4576 ERR_R_NESTED_ASN1_ERROR
4578 ERR_R_MISSING_ASN1_EOS
4579 were 4 .. 9, conflicting with
4580 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4582 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4583 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4585 Add new error code 'ERR_R_INTERNAL_ERROR'.
4588 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4592 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4593 sets the subject name for a new request or supersedes the
4594 subject name in a given request. Formats that can be parsed are
4595 'CN=Some Name, OU=myOU, C=IT'
4597 'CN=Some Name/OU=myOU/C=IT'.
4599 Add options '-batch' and '-verbose' to 'openssl req'.
4600 [Massimiliano Pala <madwolf@hackmasters.net>]
4602 *) Introduce the possibility to access global variables through
4603 functions on platform were that's the best way to handle exporting
4604 global variables in shared libraries. To enable this functionality,
4605 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4606 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4607 is normally done by Configure or something similar).
4609 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4610 in the source file (foo.c) like this:
4612 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4613 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4615 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4616 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4618 OPENSSL_DECLARE_GLOBAL(int,foo);
4619 #define foo OPENSSL_GLOBAL_REF(foo)
4620 OPENSSL_DECLARE_GLOBAL(double,bar);
4621 #define bar OPENSSL_GLOBAL_REF(bar)
4623 The #defines are very important, and therefore so is including the
4624 header file everywhere where the defined globals are used.
4626 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4627 of ASN.1 items, but that structure is a bit different.
4629 The largest change is in util/mkdef.pl which has been enhanced with
4630 better and easier to understand logic to choose which symbols should
4631 go into the Windows .def files as well as a number of fixes and code
4632 cleanup (among others, algorithm keywords are now sorted
4633 lexicographically to avoid constant rewrites).
4636 *) In BN_div() keep a copy of the sign of 'num' before writing the
4637 result to 'rm' because if rm==num the value will be overwritten
4638 and produce the wrong result if 'num' is negative: this caused
4639 problems with BN_mod() and BN_nnmod().
4642 *) Function OCSP_request_verify(). This checks the signature on an
4643 OCSP request and verifies the signer certificate. The signer
4644 certificate is just checked for a generic purpose and OCSP request
4648 *) Add OCSP_check_validity() function to check the validity of OCSP
4649 responses. OCSP responses are prepared in real time and may only
4650 be a few seconds old. Simply checking that the current time lies
4651 between thisUpdate and nextUpdate max reject otherwise valid responses
4652 caused by either OCSP responder or client clock inaccuracy. Instead
4653 we allow thisUpdate and nextUpdate to fall within a certain period of
4654 the current time. The age of the response can also optionally be
4655 checked. Two new options -validity_period and -status_age added to
4659 *) If signature or public key algorithm is unrecognized print out its
4660 OID rather that just UNKNOWN.
4663 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4664 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4665 ID to be generated from the issuer certificate alone which can then be
4666 passed to OCSP_id_issuer_cmp().
4669 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4670 ASN1 modules to export functions returning ASN1_ITEM pointers
4671 instead of the ASN1_ITEM structures themselves. This adds several
4672 new macros which allow the underlying ASN1 function/structure to
4673 be accessed transparently. As a result code should not use ASN1_ITEM
4674 references directly (such as &X509_it) but instead use the relevant
4675 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4676 use of the new ASN1 code on platforms where exporting structures
4677 is problematical (for example in shared libraries) but exporting
4678 functions returning pointers to structures is not.
4681 *) Add support for overriding the generation of SSL/TLS session IDs.
4682 These callbacks can be registered either in an SSL_CTX or per SSL.
4683 The purpose of this is to allow applications to control, if they wish,
4684 the arbitrary values chosen for use as session IDs, particularly as it
4685 can be useful for session caching in multiple-server environments. A
4686 command-line switch for testing this (and any client code that wishes
4687 to use such a feature) has been added to "s_server".
4688 [Geoff Thorpe, Lutz Jaenicke]
4690 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4691 of the form '#if defined(...) || defined(...) || ...' and
4692 '#if !defined(...) && !defined(...) && ...'. This also avoids
4693 the growing number of special cases it was previously handling.
4696 *) Make all configuration macros available for application by making
4697 sure they are available in opensslconf.h, by giving them names starting
4698 with "OPENSSL_" to avoid conflicts with other packages and by making
4699 sure e_os2.h will cover all platform-specific cases together with
4701 Additionally, it is now possible to define configuration/platform-
4702 specific names (called "system identities"). In the C code, these
4703 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4704 macro with the name beginning with "OPENSSL_SYS_", which is determined
4705 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4709 *) New option -set_serial to 'req' and 'x509' this allows the serial
4710 number to use to be specified on the command line. Previously self
4711 signed certificates were hard coded with serial number 0 and the
4712 CA options of 'x509' had to use a serial number in a file which was
4716 *) New options to 'ca' utility to support V2 CRL entry extensions.
4717 Currently CRL reason, invalidity date and hold instruction are
4718 supported. Add new CRL extensions to V3 code and some new objects.
4721 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4722 disable standard block padding (aka PKCS#5 padding) in the EVP
4723 API, which was previously mandatory. This means that the data is
4724 not padded in any way and so the total length much be a multiple
4725 of the block size, otherwise an error occurs.
4728 *) Initial (incomplete) OCSP SSL support.
4731 *) New function OCSP_parse_url(). This splits up a URL into its host,
4732 port and path components: primarily to parse OCSP URLs. New -url
4733 option to ocsp utility.
4736 *) New nonce behavior. The return value of OCSP_check_nonce() now
4737 reflects the various checks performed. Applications can decide
4738 whether to tolerate certain situations such as an absent nonce
4739 in a response when one was present in a request: the ocsp application
4740 just prints out a warning. New function OCSP_add1_basic_nonce()
4741 this is to allow responders to include a nonce in a response even if
4742 the request is nonce-less.
4745 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4746 skipped when using openssl x509 multiple times on a single input file,
4747 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4750 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4751 set string type: to handle setting ASN1_TIME structures. Fix ca
4752 utility to correctly initialize revocation date of CRLs.
4755 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4756 the clients preferred ciphersuites and rather use its own preferences.
4757 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4758 Internet Explorer by ensuring unchanged hash method during stepup.
4759 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4762 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4763 to aes and add a new 'exist' option to print out symbols that don't
4767 *) Additional options to ocsp utility to allow flags to be set and
4768 additional certificates supplied.
4771 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4772 OCSP client a number of certificate to only verify the response
4776 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4777 handle the new API. Currently only ECB, CBC modes supported. Add new
4780 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4781 Encryption Standard (AES) Ciphersuites for Transport Layer
4782 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4783 not enabled by default and were not part of the "ALL" ciphersuite
4784 alias because they were not yet official; they could be
4785 explicitly requested by specifying the "AESdraft" ciphersuite
4786 group alias. In the final release of OpenSSL 0.9.7, the group
4787 alias is called "AES" and is part of "ALL".)
4788 [Ben Laurie, Steve Henson, Bodo Moeller]
4790 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4791 request to response.
4794 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4795 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4796 extract information from a certificate request. OCSP_response_create()
4797 creates a response and optionally adds a basic response structure.
4798 OCSP_basic_add1_status() adds a complete single response to a basic
4799 response and returns the OCSP_SINGLERESP structure just added (to allow
4800 extensions to be included for example). OCSP_basic_add1_cert() adds a
4801 certificate to a basic response and OCSP_basic_sign() signs a basic
4802 response with various flags. New helper functions ASN1_TIME_check()
4803 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4804 (converts ASN1_TIME to GeneralizedTime).
4807 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4808 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4809 structure from a certificate. X509_pubkey_digest() digests the public_key
4810 contents: this is used in various key identifiers.
4813 *) Make sk_sort() tolerate a NULL argument.
4814 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4816 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4817 passed by the function are trusted implicitly. If any of them signed the
4818 response then it is assumed to be valid and is not verified.
4821 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4822 to data. This was previously part of the PKCS7 ASN1 code. This
4823 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4824 [Steve Henson, reported by Kenneth R. Robinette
4825 <support@securenetterm.com>]
4827 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4828 routines: without these tracing memory leaks is very painful.
4829 Fix leaks in PKCS12 and PKCS7 routines.
4832 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4833 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4834 effectively meant GeneralizedTime would never be used. Now it
4835 is initialised to -1 but X509_time_adj() now has to check the value
4836 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4837 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4838 [Steve Henson, reported by Kenneth R. Robinette
4839 <support@securenetterm.com>]
4841 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4842 result in a zero length in the ASN1_INTEGER structure which was
4843 not consistent with the structure when d2i_ASN1_INTEGER() was used
4844 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4845 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4846 where it did not print out a minus for negative ASN1_INTEGER.
4849 *) Add summary printout to ocsp utility. The various functions which
4850 convert status values to strings have been renamed to:
4851 OCSP_response_status_str(), OCSP_cert_status_str() and
4852 OCSP_crl_reason_str() and are no longer static. New options
4853 to verify nonce values and to disable verification. OCSP response
4854 printout format cleaned up.
4857 *) Add additional OCSP certificate checks. These are those specified
4858 in RFC2560. This consists of two separate checks: the CA of the
4859 certificate being checked must either be the OCSP signer certificate
4860 or the issuer of the OCSP signer certificate. In the latter case the
4861 OCSP signer certificate must contain the OCSP signing extended key
4862 usage. This check is performed by attempting to match the OCSP
4863 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
4864 in the OCSP_CERTID structures of the response.
4867 *) Initial OCSP certificate verification added to OCSP_basic_verify()
4868 and related routines. This uses the standard OpenSSL certificate
4869 verify routines to perform initial checks (just CA validity) and
4870 to obtain the certificate chain. Then additional checks will be
4871 performed on the chain. Currently the root CA is checked to see
4872 if it is explicitly trusted for OCSP signing. This is used to set
4873 a root CA as a global signing root: that is any certificate that
4874 chains to that CA is an acceptable OCSP signing certificate.
4877 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
4878 extensions from a separate configuration file.
4879 As when reading extensions from the main configuration file,
4880 the '-extensions ...' option may be used for specifying the
4882 [Massimiliano Pala <madwolf@comune.modena.it>]
4884 *) New OCSP utility. Allows OCSP requests to be generated or
4885 read. The request can be sent to a responder and the output
4886 parsed, outputed or printed in text form. Not complete yet:
4887 still needs to check the OCSP response validity.
4890 *) New subcommands for 'openssl ca':
4891 'openssl ca -status <serial>' prints the status of the cert with
4892 the given serial number (according to the index file).
4893 'openssl ca -updatedb' updates the expiry status of certificates
4895 [Massimiliano Pala <madwolf@comune.modena.it>]
4897 *) New '-newreq-nodes' command option to CA.pl. This is like
4898 '-newreq', but calls 'openssl req' with the '-nodes' option
4899 so that the resulting key is not encrypted.
4900 [Damien Miller <djm@mindrot.org>]
4902 *) New configuration for the GNU Hurd.
4903 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
4905 *) Initial code to implement OCSP basic response verify. This
4906 is currently incomplete. Currently just finds the signer's
4907 certificate and verifies the signature on the response.
4910 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
4911 value of OPENSSLDIR. This is available via the new '-d' option
4912 to 'openssl version', and is also included in 'openssl version -a'.
4915 *) Allowing defining memory allocation callbacks that will be given
4916 file name and line number information in additional arguments
4917 (a const char* and an int). The basic functionality remains, as
4918 well as the original possibility to just replace malloc(),
4919 realloc() and free() by functions that do not know about these
4920 additional arguments. To register and find out the current
4921 settings for extended allocation functions, the following
4922 functions are provided:
4924 CRYPTO_set_mem_ex_functions
4925 CRYPTO_set_locked_mem_ex_functions
4926 CRYPTO_get_mem_ex_functions
4927 CRYPTO_get_locked_mem_ex_functions
4929 These work the same way as CRYPTO_set_mem_functions and friends.
4930 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
4931 extended allocation function is enabled.
4932 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
4933 a conventional allocation function is enabled.
4934 [Richard Levitte, Bodo Moeller]
4936 *) Finish off removing the remaining LHASH function pointer casts.
4937 There should no longer be any prototype-casting required when using
4938 the LHASH abstraction, and any casts that remain are "bugs". See
4939 the callback types and macros at the head of lhash.h for details
4940 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
4943 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
4944 If /dev/[u]random devices are not available or do not return enough
4945 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
4947 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
4948 /etc/entropy will be queried once each in this sequence, quering stops
4949 when enough entropy was collected without querying more sockets.
4952 *) Change the Unix RAND_poll() variant to be able to poll several
4953 random devices, as specified by DEVRANDOM, until a sufficient amount
4954 of data has been collected. We spend at most 10 ms on each file
4955 (select timeout) and read in non-blocking mode. DEVRANDOM now
4956 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
4957 (previously it was just the string "/dev/urandom"), so on typical
4958 platforms the 10 ms delay will never occur.
4959 Also separate out the Unix variant to its own file, rand_unix.c.
4960 For VMS, there's a currently-empty rand_vms.c.
4963 *) Move OCSP client related routines to ocsp_cl.c. These
4964 provide utility functions which an application needing
4965 to issue a request to an OCSP responder and analyse the
4966 response will typically need: as opposed to those which an
4967 OCSP responder itself would need which will be added later.
4969 OCSP_request_sign() signs an OCSP request with an API similar
4970 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
4971 response. OCSP_response_get1_basic() extracts basic response
4972 from response. OCSP_resp_find_status(): finds and extracts status
4973 information from an OCSP_CERTID structure (which will be created
4974 when the request structure is built). These are built from lower
4975 level functions which work on OCSP_SINGLERESP structures but
4976 wont normally be used unless the application wishes to examine
4977 extensions in the OCSP response for example.
4979 Replace nonce routines with a pair of functions.
4980 OCSP_request_add1_nonce() adds a nonce value and optionally
4981 generates a random value. OCSP_check_nonce() checks the
4982 validity of the nonce in an OCSP response.
4985 *) Change function OCSP_request_add() to OCSP_request_add0_id().
4986 This doesn't copy the supplied OCSP_CERTID and avoids the
4987 need to free up the newly created id. Change return type
4988 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
4989 This can then be used to add extensions to the request.
4990 Deleted OCSP_request_new(), since most of its functionality
4991 is now in OCSP_REQUEST_new() (and the case insensitive name
4992 clash) apart from the ability to set the request name which
4993 will be added elsewhere.
4996 *) Update OCSP API. Remove obsolete extensions argument from
4997 various functions. Extensions are now handled using the new
4998 OCSP extension code. New simple OCSP HTTP function which
4999 can be used to send requests and parse the response.
5002 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
5003 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
5004 uses the special reorder version of SET OF to sort the attributes
5005 and reorder them to match the encoded order. This resolves a long
5006 standing problem: a verify on a PKCS7 structure just after signing
5007 it used to fail because the attribute order did not match the
5008 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
5009 it uses the received order. This is necessary to tolerate some broken
5010 software that does not order SET OF. This is handled by encoding
5011 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
5012 to produce the required SET OF.
5015 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
5016 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
5017 files to get correct declarations of the ASN.1 item variables.
5020 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
5021 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
5022 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
5023 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
5024 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
5025 ASN1_ITEM and no wrapper functions.
5028 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
5029 replace the old function pointer based I/O routines. Change most of
5030 the *_d2i_bio() and *_d2i_fp() functions to use these.
5033 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
5034 lines, recognice more "algorithms" that can be deselected, and make
5035 it complain about algorithm deselection that isn't recognised.
5038 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
5039 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
5040 to use new functions. Add NO_ASN1_OLD which can be set to remove
5041 some old style ASN1 functions: this can be used to determine if old
5042 code will still work when these eventually go away.
5045 *) New extension functions for OCSP structures, these follow the
5046 same conventions as certificates and CRLs.
5049 *) New function X509V3_add1_i2d(). This automatically encodes and
5050 adds an extension. Its behaviour can be customised with various
5051 flags to append, replace or delete. Various wrappers added for
5052 certifcates and CRLs.
5055 *) Fix to avoid calling the underlying ASN1 print routine when
5056 an extension cannot be parsed. Correct a typo in the
5057 OCSP_SERVICELOC extension. Tidy up print OCSP format.
5060 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
5061 entries for variables.
5064 *) Add functionality to apps/openssl.c for detecting locking
5065 problems: As the program is single-threaded, all we have
5066 to do is register a locking callback using an array for
5067 storing which locks are currently held by the program.
5070 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
5071 SSL_get_ex_data_X509_STORE_idx(), which is used in
5072 ssl_verify_cert_chain() and thus can be called at any time
5073 during TLS/SSL handshakes so that thread-safety is essential.
5074 Unfortunately, the ex_data design is not at all suited
5075 for multi-threaded use, so it probably should be abolished.
5078 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
5079 [Broadcom, tweaked and integrated by Geoff Thorpe]
5081 *) Move common extension printing code to new function
5082 X509V3_print_extensions(). Reorganise OCSP print routines and
5083 implement some needed OCSP ASN1 functions. Add OCSP extensions.
5086 *) New function X509_signature_print() to remove duplication in some
5090 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
5091 set (this was treated exactly the same as SET OF previously). This
5092 is used to reorder the STACK representing the structure to match the
5093 encoding. This will be used to get round a problem where a PKCS7
5094 structure which was signed could not be verified because the STACK
5095 order did not reflect the encoded order.
5098 *) Reimplement the OCSP ASN1 module using the new code.
5101 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
5102 for its ASN1 operations. The old style function pointers still exist
5103 for now but they will eventually go away.
5106 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
5107 completely replaces the old ASN1 functionality with a table driven
5108 encoder and decoder which interprets an ASN1_ITEM structure describing
5109 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5110 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5111 has also been converted to the new form.
5114 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5115 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5116 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5117 for negative moduli.
5120 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5121 of not touching the result's sign bit.
5124 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5128 *) Changed the LHASH code to use prototypes for callbacks, and created
5129 macros to declare and implement thin (optionally static) functions
5130 that provide type-safety and avoid function pointer casting for the
5131 type-specific callbacks.
5134 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5136 [Veers Staats <staatsvr@asc.hpc.mil>,
5137 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5139 *) Reformat the FAQ so the different questions and answers can be divided
5140 in sections depending on the subject.
5143 *) Have the zlib compression code load ZLIB.DLL dynamically under
5147 *) New function BN_mod_sqrt for computing square roots modulo a prime
5148 (using the probabilistic Tonelli-Shanks algorithm unless
5149 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5150 be handled deterministically).
5151 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5153 *) Make BN_mod_inverse faster by explicitly handling small quotients
5154 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5155 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5158 *) New function BN_kronecker.
5161 *) Fix BN_gcd so that it works on negative inputs; the result is
5162 positive unless both parameters are zero.
5163 Previously something reasonably close to an infinite loop was
5164 possible because numbers could be growing instead of shrinking
5165 in the implementation of Euclid's algorithm.
5168 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5169 sign of the number in question.
5171 Fix BN_is_word(a,w) to work correctly for w == 0.
5173 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5174 because its test if the absolute value of 'a' equals 'w'.
5175 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5176 it exists mostly for use in the implementations of BN_is_zero(),
5177 BN_is_one(), and BN_is_word().
5180 *) New function BN_swap.
5183 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5184 the exponentiation functions are more likely to produce reasonable
5185 results on negative inputs.
5188 *) Change BN_mod_mul so that the result is always non-negative.
5189 Previously, it could be negative if one of the factors was negative;
5190 I don't think anyone really wanted that behaviour.
5193 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5194 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5195 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5196 and add new functions:
5205 BN_mod_lshift1_quick
5209 These functions always generate non-negative results.
5211 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5212 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5214 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5215 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5216 be reduced modulo m.
5217 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5220 The following entry accidentily appeared in the CHANGES file
5221 distributed with OpenSSL 0.9.7. The modifications described in
5222 it do *not* apply to OpenSSL 0.9.7.
5224 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5225 was actually never needed) and in BN_mul(). The removal in BN_mul()
5226 required a small change in bn_mul_part_recursive() and the addition
5227 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5228 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5229 bn_sub_words() and bn_add_words() except they take arrays with
5234 *) In 'openssl passwd', verify passwords read from the terminal
5235 unless the '-salt' option is used (which usually means that
5236 verification would just waste user's time since the resulting
5237 hash is going to be compared with some given password hash)
5238 or the new '-noverify' option is used.
5240 This is an incompatible change, but it does not affect
5241 non-interactive use of 'openssl passwd' (passwords on the command
5242 line, '-stdin' option, '-in ...' option) and thus should not
5246 *) Remove all references to RSAref, since there's no more need for it.
5249 *) Make DSO load along a path given through an environment variable
5250 (SHLIB_PATH) with shl_load().
5253 *) Constify the ENGINE code as a result of BIGNUM constification.
5254 Also constify the RSA code and most things related to it. In a
5255 few places, most notable in the depth of the ASN.1 code, ugly
5256 casts back to non-const were required (to be solved at a later
5260 *) Make it so the openssl application has all engines loaded by default.
5263 *) Constify the BIGNUM routines a little more.
5266 *) Add the following functions:
5268 ENGINE_load_cswift()
5270 ENGINE_load_atalla()
5272 ENGINE_load_builtin_engines()
5274 That way, an application can itself choose if external engines that
5275 are built-in in OpenSSL shall ever be used or not. The benefit is
5276 that applications won't have to be linked with libdl or other dso
5277 libraries unless it's really needed.
5279 Changed 'openssl engine' to load all engines on demand.
5280 Changed the engine header files to avoid the duplication of some
5281 declarations (they differed!).
5284 *) 'openssl engine' can now list capabilities.
5287 *) Better error reporting in 'openssl engine'.
5290 *) Never call load_dh_param(NULL) in s_server.
5293 *) Add engine application. It can currently list engines by name and
5294 identity, and test if they are actually available.
5297 *) Improve RPM specification file by forcing symbolic linking and making
5298 sure the installed documentation is also owned by root.root.
5299 [Damien Miller <djm@mindrot.org>]
5301 *) Give the OpenSSL applications more possibilities to make use of
5302 keys (public as well as private) handled by engines.
5305 *) Add OCSP code that comes from CertCo.
5308 *) Add VMS support for the Rijndael code.
5311 *) Added untested support for Nuron crypto accelerator.
5314 *) Add support for external cryptographic devices. This code was
5315 previously distributed separately as the "engine" branch.
5316 [Geoff Thorpe, Richard Levitte]
5318 *) Rework the filename-translation in the DSO code. It is now possible to
5319 have far greater control over how a "name" is turned into a filename
5320 depending on the operating environment and any oddities about the
5321 different shared library filenames on each system.
5324 *) Support threads on FreeBSD-elf in Configure.
5327 *) Fix for SHA1 assembly problem with MASM: it produces
5328 warnings about corrupt line number information when assembling
5329 with debugging information. This is caused by the overlapping
5331 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5334 NCONF_get_number() has no error checking at all. As a replacement,
5335 NCONF_get_number_e() is defined (_e for "error checking") and is
5336 promoted strongly. The old NCONF_get_number is kept around for
5337 binary backward compatibility.
5338 Make it possible for methods to load from something other than a BIO,
5339 by providing a function pointer that is given a name instead of a BIO.
5340 For example, this could be used to load configuration data from an
5344 *) Fix for non blocking accept BIOs. Added new I/O special reason
5345 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5346 with non blocking I/O was not possible because no retry code was
5347 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5351 *) Added the beginnings of Rijndael support.
5354 *) Fix for bug in DirectoryString mask setting. Add support for
5355 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5356 to allow certificate printing to more controllable, additional
5357 'certopt' option to 'x509' to allow new printing options to be
5361 *) Clean old EAY MD5 hack from e_os.h.
5364 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5366 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5367 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5368 [Joe Orton, Steve Henson]
5370 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5372 *) Fix additional bug revealed by the NISCC test suite:
5374 Stop bug triggering large recursion when presented with
5375 certain ASN.1 tags (CVE-2003-0851)
5378 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5380 *) Fix various bugs revealed by running the NISCC test suite:
5382 Stop out of bounds reads in the ASN1 code when presented with
5383 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5385 If verify callback ignores invalid public key errors don't try to check
5386 certificate signature with the NULL public key.
5390 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5391 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5395 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5396 extra data after the compression methods not only for TLS 1.0
5397 but also for SSL 3.0 (as required by the specification).
5398 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5400 *) Change X509_certificate_type() to mark the key as exported/exportable
5401 when it's 512 *bits* long, not 512 bytes.
5404 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5406 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5407 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5408 a protocol version number mismatch like a decryption error
5409 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5412 *) Turn on RSA blinding by default in the default implementation
5413 to avoid a timing attack. Applications that don't want it can call
5414 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5415 They would be ill-advised to do so in most cases.
5416 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5418 *) Change RSA blinding code so that it works when the PRNG is not
5419 seeded (in this case, the secret RSA exponent is abused as
5420 an unpredictable seed -- if it is not unpredictable, there
5421 is no point in blinding anyway). Make RSA blinding thread-safe
5422 by remembering the creator's thread ID in rsa->blinding and
5423 having all other threads use local one-time blinding factors
5424 (this requires more computation than sharing rsa->blinding, but
5425 avoids excessive locking; and if an RSA object is not shared
5426 between threads, blinding will still be very fast).
5429 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5431 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5432 via timing by performing a MAC computation even if incorrrect
5433 block cipher padding has been found. This is a countermeasure
5434 against active attacks where the attacker has to distinguish
5435 between bad padding and a MAC verification error. (CVE-2003-0078)
5437 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5438 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5439 Martin Vuagnoux (EPFL, Ilion)]
5441 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5443 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5444 memory from it's contents. This is done with a counter that will
5445 place alternating values in each byte. This can be used to solve
5446 two issues: 1) the removal of calls to memset() by highly optimizing
5447 compilers, and 2) cleansing with other values than 0, since those can
5448 be read through on certain media, for example a swap space on disk.
5451 *) Bugfix: client side session caching did not work with external caching,
5452 because the session->cipher setting was not restored when reloading
5453 from the external cache. This problem was masked, when
5454 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5455 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5458 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5459 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5460 [Zeev Lieber <zeev-l@yahoo.com>]
5462 *) Undo an undocumented change introduced in 0.9.6e which caused
5463 repeated calls to OpenSSL_add_all_ciphers() and
5464 OpenSSL_add_all_digests() to be ignored, even after calling
5468 *) Change the default configuration reader to deal with last line not
5469 being properly terminated.
5472 *) Change X509_NAME_cmp() so it applies the special rules on handling
5473 DN values that are of type PrintableString, as well as RDNs of type
5474 emailAddress where the value has the type ia5String.
5475 [stefank@valicert.com via Richard Levitte]
5477 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5478 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5479 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5480 the bitwise-OR of the two for use by the majority of applications
5481 wanting this behaviour, and update the docs. The documented
5482 behaviour and actual behaviour were inconsistent and had been
5483 changing anyway, so this is more a bug-fix than a behavioural
5485 [Geoff Thorpe, diagnosed by Nadav Har'El]
5487 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5488 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5491 *) Fix initialization code race conditions in
5492 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5493 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5494 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5495 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5496 ssl2_get_cipher_by_char(),
5497 ssl3_get_cipher_by_char().
5498 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5500 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5501 the cached sessions are flushed, as the remove_cb() might use ex_data
5502 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5503 (see [openssl.org #212]).
5504 [Geoff Thorpe, Lutz Jaenicke]
5506 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5507 length, instead of the encoding length to d2i_ASN1_OBJECT.
5510 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5512 *) [In 0.9.6g-engine release:]
5513 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5514 [Lynn Gazis <lgazis@rainbow.com>]
5516 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5518 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5519 and get fix the header length calculation.
5520 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5521 Alon Kantor <alonk@checkpoint.com> (and others),
5524 *) Use proper error handling instead of 'assertions' in buffer
5525 overflow checks added in 0.9.6e. This prevents DoS (the
5526 assertions could call abort()).
5527 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5529 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5531 *) Add various sanity checks to asn1_get_length() to reject
5532 the ASN1 length bytes if they exceed sizeof(long), will appear
5533 negative or the content length exceeds the length of the
5535 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5537 *) Fix cipher selection routines: ciphers without encryption had no flags
5538 for the cipher strength set and where therefore not handled correctly
5539 by the selection routines (PR #130).
5542 *) Fix EVP_dsa_sha macro.
5546 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5547 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5548 that was added in OpenSSL 0.9.6d.
5550 As the countermeasure turned out to be incompatible with some
5551 broken SSL implementations, the new option is part of SSL_OP_ALL.
5552 SSL_OP_ALL is usually employed when compatibility with weird SSL
5553 implementations is desired (e.g. '-bugs' option to 's_client' and
5554 's_server'), so the new option is automatically set in many
5558 *) Changes in security patch:
5560 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5561 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5562 Air Force Materiel Command, USAF, under agreement number
5565 *) Add various sanity checks to asn1_get_length() to reject
5566 the ASN1 length bytes if they exceed sizeof(long), will appear
5567 negative or the content length exceeds the length of the
5568 supplied buffer. (CVE-2002-0659)
5569 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5571 *) Assertions for various potential buffer overflows, not known to
5573 [Ben Laurie (CHATS)]
5575 *) Various temporary buffers to hold ASCII versions of integers were
5576 too small for 64 bit platforms. (CVE-2002-0655)
5577 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5579 *) Remote buffer overflow in SSL3 protocol - an attacker could
5580 supply an oversized session ID to a client. (CVE-2002-0656)
5581 [Ben Laurie (CHATS)]
5583 *) Remote buffer overflow in SSL2 protocol - an attacker could
5584 supply an oversized client master key. (CVE-2002-0656)
5585 [Ben Laurie (CHATS)]
5587 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5589 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5590 encoded as NULL) with id-dsa-with-sha1.
5591 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5593 *) Check various X509_...() return values in apps/req.c.
5594 [Nils Larsch <nla@trustcenter.de>]
5596 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5597 an end-of-file condition would erronously be flagged, when the CRLF
5598 was just at the end of a processed block. The bug was discovered when
5599 processing data through a buffering memory BIO handing the data to a
5600 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5601 <ptsekov@syntrex.com> and Nedelcho Stanev.
5604 *) Implement a countermeasure against a vulnerability recently found
5605 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5606 before application data chunks to avoid the use of known IVs
5607 with data potentially chosen by the attacker.
5610 *) Fix length checks in ssl3_get_client_hello().
5613 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5614 to prevent ssl3_read_internal() from incorrectly assuming that
5615 ssl3_read_bytes() found application data while handshake
5616 processing was enabled when in fact s->s3->in_read_app_data was
5617 merely automatically cleared during the initial handshake.
5618 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5620 *) Fix object definitions for Private and Enterprise: they were not
5621 recognized in their shortname (=lowercase) representation. Extend
5622 obj_dat.pl to issue an error when using undefined keywords instead
5623 of silently ignoring the problem (Svenning Sorensen
5624 <sss@sss.dnsalias.net>).
5627 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5628 generators, i.e. generators other than 2 and 5. (Previously, the
5629 code did not properly initialise the 'add' and 'rem' values to
5630 BN_generate_prime().)
5632 In the new general case, we do not insist that 'generator' is
5633 actually a primitive root: This requirement is rather pointless;
5634 a generator of the order-q subgroup is just as good, if not
5638 *) Map new X509 verification errors to alerts. Discovered and submitted by
5639 Tom Wu <tom@arcot.com>.
5642 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5643 returning non-zero before the data has been completely received
5644 when using non-blocking I/O.
5645 [Bodo Moeller; problem pointed out by John Hughes]
5647 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5648 [Ben Laurie, Lutz Jaenicke]
5650 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5651 Yoram Zahavi <YoramZ@gilian.com>).
5654 *) Add information about CygWin 1.3 and on, and preserve proper
5655 configuration for the versions before that.
5656 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5658 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5659 check whether we deal with a copy of a session and do not delete from
5660 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5661 <izhar@checkpoint.com>.
5664 *) Do not store session data into the internal session cache, if it
5665 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5666 flag is set). Proposed by Aslam <aslam@funk.com>.
5669 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5673 *) [In 0.9.6d-engine release:]
5674 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5675 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5677 *) Add the configuration target linux-s390x.
5678 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5680 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5681 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5682 variable as an indication that a ClientHello message has been
5683 received. As the flag value will be lost between multiple
5684 invocations of ssl3_accept when using non-blocking I/O, the
5685 function may not be aware that a handshake has actually taken
5686 place, thus preventing a new session from being added to the
5689 To avoid this problem, we now set s->new_session to 2 instead of
5690 using a local variable.
5691 [Lutz Jaenicke, Bodo Moeller]
5693 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5694 if the SSL_R_LENGTH_MISMATCH error is detected.
5695 [Geoff Thorpe, Bodo Moeller]
5697 *) New 'shared_ldflag' column in Configure platform table.
5700 *) Fix EVP_CIPHER_mode macro.
5701 ["Dan S. Camper" <dan@bti.net>]
5703 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5704 type, we must throw them away by setting rr->length to 0.
5705 [D P Chang <dpc@qualys.com>]
5707 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5709 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5710 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5711 worked incorrectly for those cases where range = 10..._2 and
5712 3*range is two bits longer than range.)
5715 *) Only add signing time to PKCS7 structures if it is not already
5719 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5720 OBJ_ld_ce should be OBJ_id_ce.
5721 Also some ip-pda OIDs in crypto/objects/objects.txt were
5722 incorrect (cf. RFC 3039).
5723 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5725 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5726 returns early because it has nothing to do.
5727 [Andy Schneider <andy.schneider@bjss.co.uk>]
5729 *) [In 0.9.6c-engine release:]
5730 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5731 [Andy Schneider <andy.schneider@bjss.co.uk>]
5733 *) [In 0.9.6c-engine release:]
5734 Add support for Cryptographic Appliance's keyserver technology.
5735 (Use engine 'keyclient')
5736 [Cryptographic Appliances and Geoff Thorpe]
5738 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5739 is called via tools/c89.sh because arguments have to be
5740 rearranged (all '-L' options must appear before the first object
5742 [Richard Shapiro <rshapiro@abinitio.com>]
5744 *) [In 0.9.6c-engine release:]
5745 Add support for Broadcom crypto accelerator cards, backported
5747 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5749 *) [In 0.9.6c-engine release:]
5750 Add support for SureWare crypto accelerator cards from
5751 Baltimore Technologies. (Use engine 'sureware')
5752 [Baltimore Technologies and Mark Cox]
5754 *) [In 0.9.6c-engine release:]
5755 Add support for crypto accelerator cards from Accelerated
5756 Encryption Processing, www.aep.ie. (Use engine 'aep')
5757 [AEP Inc. and Mark Cox]
5759 *) Add a configuration entry for gcc on UnixWare.
5760 [Gary Benson <gbenson@redhat.com>]
5762 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5763 messages are stored in a single piece (fixed-length part and
5764 variable-length part combined) and fix various bugs found on the way.
5767 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5768 instead. BIO_gethostbyname() does not know what timeouts are
5769 appropriate, so entries would stay in cache even when they have
5771 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5773 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5774 faced with a pathologically small ClientHello fragment that does
5775 not contain client_version: Instead of aborting with an error,
5776 simply choose the highest available protocol version (i.e.,
5777 TLS 1.0 unless it is disabled). In practice, ClientHello
5778 messages are never sent like this, but this change gives us
5779 strictly correct behaviour at least for TLS.
5782 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5783 never resets s->method to s->ctx->method when called from within
5784 one of the SSL handshake functions.
5785 [Bodo Moeller; problem pointed out by Niko Baric]
5787 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5788 (sent using the client's version number) if client_version is
5789 smaller than the protocol version in use. Also change
5790 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5791 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5792 the client will at least see that alert.
5795 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5799 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5800 client receives HelloRequest while in a handshake.
5801 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5803 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5804 should end in 'break', not 'goto end' which circuments various
5805 cleanups done in state SSL_ST_OK. But session related stuff
5806 must be disabled for SSL_ST_OK in the case that we just sent a
5809 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5810 before just sending a HelloRequest.
5811 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5813 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5814 reveal whether illegal block cipher padding was found or a MAC
5815 verification error occured. (Neither SSLerr() codes nor alerts
5816 are directly visible to potential attackers, but the information
5817 may leak via logfiles.)
5819 Similar changes are not required for the SSL 2.0 implementation
5820 because the number of padding bytes is sent in clear for SSL 2.0,
5821 and the extra bytes are just ignored. However ssl/s2_pkt.c
5822 failed to verify that the purported number of padding bytes is in
5826 *) Add OpenUNIX-8 support including shared libraries
5827 (Boyd Lynn Gerber <gerberb@zenez.com>).
5830 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5831 'wristwatch attack' using huge encoding parameters (cf.
5832 James H. Manger's CRYPTO 2001 paper). Note that the
5833 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5834 encoding parameters and hence was not vulnerable.
5837 *) BN_sqr() bug fix.
5838 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5840 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5841 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5842 followed by modular reduction.
5843 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5845 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5846 equivalent based on BN_pseudo_rand() instead of BN_rand().
5849 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5850 This function was broken, as the check for a new client hello message
5851 to handle SGC did not allow these large messages.
5852 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5855 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
5858 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
5859 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
5862 *) Rework the configuration and shared library support for Tru64 Unix.
5863 The configuration part makes use of modern compiler features and
5864 still retains old compiler behavior for those that run older versions
5865 of the OS. The shared library support part includes a variant that
5866 uses the RPATH feature, and is available through the special
5867 configuration target "alpha-cc-rpath", which will never be selected
5869 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
5871 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
5872 with the same message size as in ssl3_get_certificate_request().
5873 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
5874 messages might inadvertently be reject as too long.
5875 [Petr Lampa <lampa@fee.vutbr.cz>]
5877 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
5880 *) Modified SSL library such that the verify_callback that has been set
5881 specificly for an SSL object with SSL_set_verify() is actually being
5882 used. Before the change, a verify_callback set with this function was
5883 ignored and the verify_callback() set in the SSL_CTX at the time of
5884 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
5885 to allow the necessary settings.
5888 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
5889 explicitly to NULL, as at least on Solaris 8 this seems not always to be
5890 done automatically (in contradiction to the requirements of the C
5891 standard). This made problems when used from OpenSSH.
5894 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
5895 dh->length and always used
5897 BN_rand_range(priv_key, dh->p).
5899 BN_rand_range() is not necessary for Diffie-Hellman, and this
5900 specific range makes Diffie-Hellman unnecessarily inefficient if
5901 dh->length (recommended exponent length) is much smaller than the
5902 length of dh->p. We could use BN_rand_range() if the order of
5903 the subgroup was stored in the DH structure, but we only have
5908 BN_rand(priv_key, l, ...)
5910 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
5916 RSA_eay_public_encrypt
5917 RSA_eay_private_decrypt
5918 RSA_eay_private_encrypt (signing)
5919 RSA_eay_public_decrypt (signature verification)
5921 (default implementations for RSA_public_encrypt,
5922 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
5923 always reject numbers >= n.
5926 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
5927 to synchronize access to 'locking_thread'. This is necessary on
5928 systems where access to 'locking_thread' (an 'unsigned long'
5929 variable) is not atomic.
5932 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
5933 *before* setting the 'crypto_lock_rand' flag. The previous code had
5934 a race condition if 0 is a valid thread ID.
5935 [Travis Vitek <vitek@roguewave.com>]
5937 *) Add support for shared libraries under Irix.
5938 [Albert Chin-A-Young <china@thewrittenword.com>]
5940 *) Add configuration option to build on Linux on both big-endian and
5942 [Ralf Baechle <ralf@uni-koblenz.de>]
5944 *) Add the possibility to create shared libraries on HP-UX.
5947 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
5949 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
5950 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
5951 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
5952 PRNG state recovery was possible based on the output of
5953 one PRNG request appropriately sized to gain knowledge on
5954 'md' followed by enough consecutive 1-byte PRNG requests
5955 to traverse all of 'state'.
5957 1. When updating 'md_local' (the current thread's copy of 'md')
5958 during PRNG output generation, hash all of the previous
5959 'md_local' value, not just the half used for PRNG output.
5961 2. Make the number of bytes from 'state' included into the hash
5962 independent from the number of PRNG bytes requested.
5964 The first measure alone would be sufficient to avoid
5965 Markku-Juhani's attack. (Actually it had never occurred
5966 to me that the half of 'md_local' used for chaining was the
5967 half from which PRNG output bytes were taken -- I had always
5968 assumed that the secret half would be used.) The second
5969 measure makes sure that additional data from 'state' is never
5970 mixed into 'md_local' in small portions; this heuristically
5971 further strengthens the PRNG.
5974 *) Fix crypto/bn/asm/mips3.s.
5977 *) When only the key is given to "enc", the IV is undefined. Print out
5978 an error message in this case.
5981 *) Handle special case when X509_NAME is empty in X509 printing routines.
5984 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
5985 positive and less than q.
5988 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
5989 used: it isn't thread safe and the add_lock_callback should handle
5991 [Paul Rose <Paul.Rose@bridge.com>]
5993 *) Verify that incoming data obeys the block size in
5994 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
5998 [Ulf Möller, Bodo Möller]
6000 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
6001 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
6002 when fixing the server behaviour for backwards-compatible 'client
6003 hello' messages. (Note that the attack is impractical against
6004 SSL 3.0 and TLS 1.0 anyway because length and version checking
6005 means that the probability of guessing a valid ciphertext is
6006 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
6009 Before 0.9.5, the countermeasure (hide the error by generating a
6010 random 'decryption result') did not work properly because
6011 ERR_clear_error() was missing, meaning that SSL_get_error() would
6012 detect the supposedly ignored error.
6014 Both problems are now fixed.
6017 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
6018 (previously it was 1024).
6021 *) Fix for compatibility mode trust settings: ignore trust settings
6022 unless some valid trust or reject settings are present.
6025 *) Fix for blowfish EVP: its a variable length cipher.
6028 *) Fix various bugs related to DSA S/MIME verification. Handle missing
6029 parameters in DSA public key structures and return an error in the
6030 DSA routines if parameters are absent.
6033 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
6034 in the current directory if neither $RANDFILE nor $HOME was set.
6035 RAND_file_name() in 0.9.6a returned NULL in this case. This has
6036 caused some confusion to Windows users who haven't defined $HOME.
6037 Thus RAND_file_name() is changed again: e_os.h can define a
6038 DEFAULT_HOME, which will be used if $HOME is not set.
6039 For Windows, we use "C:"; on other platforms, we still require
6040 environment variables.
6042 *) Move 'if (!initialized) RAND_poll()' into regions protected by
6043 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
6044 having multiple threads call RAND_poll() concurrently.
6047 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
6048 combination of a flag and a thread ID variable.
6049 Otherwise while one thread is in ssleay_rand_bytes (which sets the
6050 flag), *other* threads can enter ssleay_add_bytes without obeying
6051 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
6052 that they do not hold after the first thread unsets add_do_not_lock).
6055 *) Change bctest again: '-x' expressions are not available in all
6059 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
6061 *) Fix a couple of memory leaks in PKCS7_dataDecode()
6062 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
6064 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
6065 the default extension for executables, if any. Also, make the perl
6066 scripts that use symlink() to test if it really exists and use "cp"
6067 if it doesn't. All this made OpenSSL compilable and installable in
6071 *) Fix for asn1_GetSequence() for indefinite length constructed data.
6072 If SEQUENCE is length is indefinite just set c->slen to the total
6073 amount of data available.
6074 [Steve Henson, reported by shige@FreeBSD.org]
6075 [This change does not apply to 0.9.7.]
6077 *) Change bctest to avoid here-documents inside command substitution
6078 (workaround for FreeBSD /bin/sh bug).
6079 For compatibility with Ultrix, avoid shell functions (introduced
6080 in the bctest version that searches along $PATH).
6083 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
6084 with des_encrypt() defined on some operating systems, like Solaris
6088 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
6089 On the Importance of Eliminating Errors in Cryptographic
6090 Computations, J. Cryptology 14 (2001) 2, 101-119,
6091 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
6094 *) MIPS assembler BIGNUM division bug fix.
6097 *) Disabled incorrect Alpha assembler code.
6100 *) Fix PKCS#7 decode routines so they correctly update the length
6101 after reading an EOC for the EXPLICIT tag.
6103 [This change does not apply to 0.9.7.]
6105 *) Fix bug in PKCS#12 key generation routines. This was triggered
6106 if a 3DES key was generated with a 0 initial byte. Include
6107 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6108 (but broken) behaviour.
6111 *) Enhance bctest to search for a working bc along $PATH and print
6113 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6115 *) Fix memory leaks in err.c: free err_data string if necessary;
6116 don't write to the wrong index in ERR_set_error_data.
6119 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6123 *) Replace rdtsc with _emit statements for VC++ version 5.
6124 [Jeremy Cooper <jeremy@baymoo.org>]
6126 *) Make it possible to reuse SSLv2 sessions.
6129 *) In copy_email() check for >= 0 as a return value for
6130 X509_NAME_get_index_by_NID() since 0 is a valid index.
6131 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6133 *) Avoid coredump with unsupported or invalid public keys by checking if
6134 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6135 PKCS7_verify() fails with non detached data.
6138 *) Don't use getenv in library functions when run as setuid/setgid.
6139 New function OPENSSL_issetugid().
6142 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6143 due to incorrect handling of multi-threading:
6145 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6147 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6149 3. Count how many times MemCheck_off() has been called so that
6150 nested use can be treated correctly. This also avoids
6151 inband-signalling in the previous code (which relied on the
6152 assumption that thread ID 0 is impossible).
6155 *) Add "-rand" option also to s_client and s_server.
6158 *) Fix CPU detection on Irix 6.x.
6159 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6160 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6162 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6165 [This change does not apply to 0.9.7.]
6167 *) Use the cached encoding of an X509_NAME structure rather than
6168 copying it. This is apparently the reason for the libsafe "errors"
6169 but the code is actually correct.
6172 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6173 Bleichenbacher's DSA attack.
6174 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6175 to be set and top=0 forces the highest bit to be set; top=-1 is new
6176 and leaves the highest bit random.
6177 [Ulf Moeller, Bodo Moeller]
6179 *) In the NCONF_...-based implementations for CONF_... queries
6180 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6181 a temporary CONF structure with the data component set to NULL
6182 (which gives segmentation faults in lh_retrieve).
6183 Instead, use NULL for the CONF pointer in CONF_get_string and
6184 CONF_get_number (which may use environment variables) and directly
6185 return NULL from CONF_get_section.
6188 *) Fix potential buffer overrun for EBCDIC.
6191 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6192 keyUsage if basicConstraints absent for a CA.
6195 *) Make SMIME_write_PKCS7() write mail header values with a format that
6196 is more generally accepted (no spaces before the semicolon), since
6197 some programs can't parse those values properly otherwise. Also make
6198 sure BIO's that break lines after each write do not create invalid
6202 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6203 macros previously used would not encode an empty SEQUENCE OF
6204 and break the signature.
6206 [This change does not apply to 0.9.7.]
6208 *) Zero the premaster secret after deriving the master secret in
6212 *) Add some EVP_add_digest_alias registrations (as found in
6213 OpenSSL_add_all_digests()) to SSL_library_init()
6214 aka OpenSSL_add_ssl_algorithms(). This provides improved
6215 compatibility with peers using X.509 certificates
6216 with unconventional AlgorithmIdentifier OIDs.
6219 *) Fix for Irix with NO_ASM.
6220 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6222 *) ./config script fixes.
6223 [Ulf Moeller, Richard Levitte]
6225 *) Fix 'openssl passwd -1'.
6228 *) Change PKCS12_key_gen_asc() so it can cope with non null
6229 terminated strings whose length is passed in the passlen
6230 parameter, for example from PEM callbacks. This was done
6231 by adding an extra length parameter to asc2uni().
6232 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6234 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6235 call failed, free the DSA structure.
6238 *) Fix to uni2asc() to cope with zero length Unicode strings.
6239 These are present in some PKCS#12 files.
6242 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6243 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6244 when writing a 32767 byte record.
6245 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6247 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6248 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6250 (RSA objects have a reference count access to which is protected
6251 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6252 so they are meant to be shared between threads.)
6253 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6254 "Reddie, Steven" <Steven.Reddie@ca.com>]
6256 *) Fix a deadlock in CRYPTO_mem_leaks().
6259 *) Use better test patterns in bntest.
6262 *) rand_win.c fix for Borland C.
6265 *) BN_rshift bugfix for n == 0.
6268 *) Add a 'bctest' script that checks for some known 'bc' bugs
6269 so that 'make test' does not abort just because 'bc' is broken.
6272 *) Store verify_result within SSL_SESSION also for client side to
6273 avoid potential security hole. (Re-used sessions on the client side
6274 always resulted in verify_result==X509_V_OK, not using the original
6275 result of the server certificate verification.)
6278 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6279 SSL3_RT_APPLICATION_DATA, return 0.
6280 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6284 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6285 releases, have been re-implemented by renaming the previous
6286 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6287 and ssl3_read_internal, respectively, and adding 'peek' parameters
6288 to them. The new ssl[23]_{read,peek} functions are calls to
6289 ssl[23]_read_internal with the 'peek' flag set appropriately.
6290 A 'peek' parameter has also been added to ssl3_read_bytes, which
6291 does the actual work for ssl3_read_internal.
6294 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6295 the method-specific "init()" handler. Also clean up ex_data after
6296 calling the method-specific "finish()" handler. Previously, this was
6297 happening the other way round.
6300 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6301 The previous value, 12, was not always sufficient for BN_mod_exp().
6304 *) Make sure that shared libraries get the internal name engine with
6305 the full version number and not just 0. This should mark the
6306 shared libraries as not backward compatible. Of course, this should
6307 be changed again when we can guarantee backward binary compatibility.
6310 *) Fix typo in get_cert_by_subject() in by_dir.c
6311 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6313 *) Rework the system to generate shared libraries:
6315 - Make note of the expected extension for the shared libraries and
6316 if there is a need for symbolic links from for example libcrypto.so.0
6317 to libcrypto.so.0.9.7. There is extended info in Configure for
6320 - Make as few rebuilds of the shared libraries as possible.
6322 - Still avoid linking the OpenSSL programs with the shared libraries.
6324 - When installing, install the shared libraries separately from the
6328 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6330 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6331 and not in SSL_clear because the latter is also used by the
6332 accept/connect functions; previously, the settings made by
6333 SSL_set_read_ahead would be lost during the handshake.
6334 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6336 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6337 Previously, it would create entries for disableed algorithms no
6341 *) Added several new manual pages for SSL_* function.
6344 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6346 *) In ssl23_get_client_hello, generate an error message when faced
6347 with an initial SSL 3.0/TLS record that is too small to contain the
6348 first two bytes of the ClientHello message, i.e. client_version.
6349 (Note that this is a pathologic case that probably has never happened
6350 in real life.) The previous approach was to use the version number
6351 from the record header as a substitute; but our protocol choice
6352 should not depend on that one because it is not authenticated
6353 by the Finished messages.
6356 *) More robust randomness gathering functions for Windows.
6357 [Jeffrey Altman <jaltman@columbia.edu>]
6359 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6360 not set then we don't setup the error code for issuer check errors
6361 to avoid possibly overwriting other errors which the callback does
6362 handle. If an application does set the flag then we assume it knows
6363 what it is doing and can handle the new informational codes
6367 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6368 a general "ANY" type, as such it should be able to decode anything
6369 including tagged types. However it didn't check the class so it would
6370 wrongly interpret tagged types in the same way as their universal
6371 counterpart and unknown types were just rejected. Changed so that the
6372 tagged and unknown types are handled in the same way as a SEQUENCE:
6373 that is the encoding is stored intact. There is also a new type
6374 "V_ASN1_OTHER" which is used when the class is not universal, in this
6375 case we have no idea what the actual type is so we just lump them all
6379 *) On VMS, stdout may very well lead to a file that is written to
6380 in a record-oriented fashion. That means that every write() will
6381 write a separate record, which will be read separately by the
6382 programs trying to read from it. This can be very confusing.
6384 The solution is to put a BIO filter in the way that will buffer
6385 text until a linefeed is reached, and then write everything a
6386 line at a time, so every record written will be an actual line,
6387 not chunks of lines and not (usually doesn't happen, but I've
6388 seen it once) several lines in one record. BIO_f_linebuffer() is
6391 Currently, it's a VMS-only method, because that's where it has
6392 been tested well enough.
6395 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6396 it can return incorrect results.
6397 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6398 but it was in 0.9.6-beta[12].)
6401 *) Disable the check for content being present when verifying detached
6402 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6403 include zero length content when signing messages.
6406 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6407 BIO_ctrl (for BIO pairs).
6410 *) Add DSO method for VMS.
6413 *) Bug fix: Montgomery multiplication could produce results with the
6417 *) Add RPM specification openssl.spec and modify it to build three
6418 packages. The default package contains applications, application
6419 documentation and run-time libraries. The devel package contains
6420 include files, static libraries and function documentation. The
6421 doc package contains the contents of the doc directory. The original
6422 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6425 *) Add a large number of documentation files for many SSL routines.
6426 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6428 *) Add a configuration entry for Sony News 4.
6429 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6431 *) Don't set the two most significant bits to one when generating a
6432 random number < q in the DSA library.
6435 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6436 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6437 the underlying transport is blocking) if a handshake took place.
6438 (The default behaviour is needed by applications such as s_client
6439 and s_server that use select() to determine when to use SSL_read;
6440 but for applications that know in advance when to expect data, it
6441 just makes things more complicated.)
6444 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6448 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6449 work better on such systems.
6450 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6452 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6453 Update PKCS12_parse() so it copies the friendlyName and the
6454 keyid to the certificates aux info.
6457 *) Fix bug in PKCS7_verify() which caused an infinite loop
6458 if there was more than one signature.
6459 [Sven Uszpelkat <su@celocom.de>]
6461 *) Major change in util/mkdef.pl to include extra information
6462 about each symbol, as well as presentig variables as well
6463 as functions. This change means that there's n more need
6464 to rebuild the .num files when some algorithms are excluded.
6467 *) Allow the verify time to be set by an application,
6468 rather than always using the current time.
6471 *) Phase 2 verify code reorganisation. The certificate
6472 verify code now looks up an issuer certificate by a
6473 number of criteria: subject name, authority key id
6474 and key usage. It also verifies self signed certificates
6475 by the same criteria. The main comparison function is
6476 X509_check_issued() which performs these checks.
6478 Lot of changes were necessary in order to support this
6479 without completely rewriting the lookup code.
6481 Authority and subject key identifier are now cached.
6483 The LHASH 'certs' is X509_STORE has now been replaced
6484 by a STACK_OF(X509_OBJECT). This is mainly because an
6485 LHASH can't store or retrieve multiple objects with
6486 the same hash value.
6488 As a result various functions (which were all internal
6489 use only) have changed to handle the new X509_STORE
6490 structure. This will break anything that messed round
6491 with X509_STORE internally.
6493 The functions X509_STORE_add_cert() now checks for an
6494 exact match, rather than just subject name.
6496 The X509_STORE API doesn't directly support the retrieval
6497 of multiple certificates matching a given criteria, however
6498 this can be worked round by performing a lookup first
6499 (which will fill the cache with candidate certificates)
6500 and then examining the cache for matches. This is probably
6501 the best we can do without throwing out X509_LOOKUP
6502 entirely (maybe later...).
6504 The X509_VERIFY_CTX structure has been enhanced considerably.
6506 All certificate lookup operations now go via a get_issuer()
6507 callback. Although this currently uses an X509_STORE it
6508 can be replaced by custom lookups. This is a simple way
6509 to bypass the X509_STORE hackery necessary to make this
6510 work and makes it possible to use more efficient techniques
6511 in future. A very simple version which uses a simple
6512 STACK for its trusted certificate store is also provided
6513 using X509_STORE_CTX_trusted_stack().
6515 The verify_cb() and verify() callbacks now have equivalents
6516 in the X509_STORE_CTX structure.
6518 X509_STORE_CTX also has a 'flags' field which can be used
6519 to customise the verify behaviour.
6522 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6523 excludes S/MIME capabilities.
6526 *) When a certificate request is read in keep a copy of the
6527 original encoding of the signed data and use it when outputing
6528 again. Signatures then use the original encoding rather than
6529 a decoded, encoded version which may cause problems if the
6530 request is improperly encoded.
6533 *) For consistency with other BIO_puts implementations, call
6534 buffer_write(b, ...) directly in buffer_puts instead of calling
6537 In BIO_puts, increment b->num_write as in BIO_write.
6538 [Peter.Sylvester@EdelWeb.fr]
6540 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6541 BN_zero, we may not return a BIGNUM with an array consisting of
6545 *) Avoid calling abort() from within the library when problems are
6546 detected, except if preprocessor symbols have been defined
6547 (such as REF_CHECK, BN_DEBUG etc.).
6550 *) New openssl application 'rsautl'. This utility can be
6551 used for low level RSA operations. DER public key
6552 BIO/fp routines also added.
6555 *) New Configure entry and patches for compiling on QNX 4.
6556 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6558 *) A demo state-machine implementation was sponsored by
6559 Nuron (http://www.nuron.com/) and is now available in
6560 demos/state_machine.
6563 *) New options added to the 'dgst' utility for signature
6564 generation and verification.
6567 *) Unrecognized PKCS#7 content types are now handled via a
6568 catch all ASN1_TYPE structure. This allows unsupported
6569 types to be stored as a "blob" and an application can
6570 encode and decode it manually.
6573 *) Fix various signed/unsigned issues to make a_strex.c
6575 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6577 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6578 length if passed a buffer. ASN1_INTEGER_to_BN failed
6579 if passed a NULL BN and its argument was negative.
6580 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6582 *) Modification to PKCS#7 encoding routines to output definite
6583 length encoding. Since currently the whole structures are in
6584 memory there's not real point in using indefinite length
6585 constructed encoding. However if OpenSSL is compiled with
6586 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6589 *) Added BIO_vprintf() and BIO_vsnprintf().
6592 *) Added more prefixes to parse for in the the strings written
6593 through a logging bio, to cover all the levels that are available
6594 through syslog. The prefixes are now:
6596 PANIC, EMERG, EMR => LOG_EMERG
6597 ALERT, ALR => LOG_ALERT
6598 CRIT, CRI => LOG_CRIT
6599 ERROR, ERR => LOG_ERR
6600 WARNING, WARN, WAR => LOG_WARNING
6601 NOTICE, NOTE, NOT => LOG_NOTICE
6602 INFO, INF => LOG_INFO
6603 DEBUG, DBG => LOG_DEBUG
6605 and as before, if none of those prefixes are present at the
6606 beginning of the string, LOG_ERR is chosen.
6608 On Win32, the LOG_* levels are mapped according to this:
6610 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6611 LOG_WARNING => EVENTLOG_WARNING_TYPE
6612 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6616 *) Made it possible to reconfigure with just the configuration
6617 argument "reconf" or "reconfigure". The command line arguments
6618 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6619 and are retrieved from there when reconfiguring.
6623 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6625 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6628 *) The obj_dat.pl script was messing up the sorting of object
6629 names. The reason was that it compared the quoted version
6630 of strings as a result "OCSP" > "OCSP Signing" because
6631 " > SPACE. Changed script to store unquoted versions of
6632 names and add quotes on output. It was also omitting some
6633 names from the lookup table if they were given a default
6634 value (that is if SN is missing it is given the same
6635 value as LN and vice versa), these are now added on the
6636 grounds that if an object has a name we should be able to
6637 look it up. Finally added warning output when duplicate
6638 short or long names are found.
6641 *) Changes needed for Tandem NSK.
6642 [Scott Uroff <scott@xypro.com>]
6644 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6645 RSA_padding_check_SSLv23(), special padding was never detected
6646 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6647 version rollback attacks was not effective.
6649 In s23_clnt.c, don't use special rollback-attack detection padding
6650 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6651 client; similarly, in s23_srvr.c, don't do the rollback check if
6652 SSL 2.0 is the only protocol enabled in the server.
6655 *) Make it possible to get hexdumps of unprintable data with 'openssl
6656 asn1parse'. By implication, the functions ASN1_parse_dump() and
6657 BIO_dump_indent() are added.
6660 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6661 these print out strings and name structures based on various
6662 flags including RFC2253 support and proper handling of
6663 multibyte characters. Added options to the 'x509' utility
6664 to allow the various flags to be set.
6667 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6668 Also change the functions X509_cmp_current_time() and
6669 X509_gmtime_adj() work with an ASN1_TIME structure,
6670 this will enable certificates using GeneralizedTime in validity
6671 dates to be checked.
6674 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6675 negative public key encodings) on by default,
6676 NO_NEG_PUBKEY_BUG can be set to disable it.
6679 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6680 content octets. An i2c_ASN1_OBJECT is unnecessary because
6681 the encoding can be trivially obtained from the structure.
6684 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6685 not read locks (CRYPTO_r_[un]lock).
6688 *) A first attempt at creating official support for shared
6689 libraries through configuration. I've kept it so the
6690 default is static libraries only, and the OpenSSL programs
6691 are always statically linked for now, but there are
6692 preparations for dynamic linking in place.
6693 This has been tested on Linux and Tru64.
6696 *) Randomness polling function for Win9x, as described in:
6697 Peter Gutmann, Software Generation of Practically Strong
6701 *) Fix so PRNG is seeded in req if using an already existing
6705 *) New options to smime application. -inform and -outform
6706 allow alternative formats for the S/MIME message including
6707 PEM and DER. The -content option allows the content to be
6708 specified separately. This should allow things like Netscape
6709 form signing output easier to verify.
6712 *) Fix the ASN1 encoding of tags using the 'long form'.
6715 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6716 STRING types. These convert content octets to and from the
6717 underlying type. The actual tag and length octets are
6718 already assumed to have been read in and checked. These
6719 are needed because all other string types have virtually
6720 identical handling apart from the tag. By having versions
6721 of the ASN1 functions that just operate on content octets
6722 IMPLICIT tagging can be handled properly. It also allows
6723 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6724 and ASN1_INTEGER are identical apart from the tag.
6727 *) Change the handling of OID objects as follows:
6729 - New object identifiers are inserted in objects.txt, following
6730 the syntax given in objects.README.
6731 - objects.pl is used to process obj_mac.num and create a new
6733 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6736 This is currently kind of a hack, and the perl code in objects.pl
6737 isn't very elegant, but it works as I intended. The simplest way
6738 to check that it worked correctly is to look in obj_dat.h and
6739 check the array nid_objs and make sure the objects haven't moved
6740 around (this is important!). Additions are OK, as well as
6741 consistent name changes.
6744 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6747 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6748 The given file adds to whatever has already been seeded into the
6749 random pool through the RANDFILE configuration file option or
6750 environment variable, or the default random state file.
6753 *) mkstack.pl now sorts each macro group into lexical order.
6754 Previously the output order depended on the order the files
6755 appeared in the directory, resulting in needless rewriting
6759 *) Patches to make OpenSSL compile under Win32 again. Mostly
6760 work arounds for the VC++ problem that it treats func() as
6761 func(void). Also stripped out the parts of mkdef.pl that
6762 added extra typesafe functions: these no longer exist.
6765 *) Reorganisation of the stack code. The macros are now all
6766 collected in safestack.h . Each macro is defined in terms of
6767 a "stack macro" of the form SKM_<name>(type, a, b). The
6768 DEBUG_SAFESTACK is now handled in terms of function casts,
6769 this has the advantage of retaining type safety without the
6770 use of additional functions. If DEBUG_SAFESTACK is not defined
6771 then the non typesafe macros are used instead. Also modified the
6772 mkstack.pl script to handle the new form. Needs testing to see
6773 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6774 the default if no major problems. Similar behaviour for ASN1_SET_OF
6775 and PKCS12_STACK_OF.
6778 *) When some versions of IIS use the 'NET' form of private key the
6779 key derivation algorithm is different. Normally MD5(password) is
6780 used as a 128 bit RC4 key. In the modified case
6781 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6782 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6783 as the old Netscape_RSA functions except they have an additional
6784 'sgckey' parameter which uses the modified algorithm. Also added
6785 an -sgckey command line option to the rsa utility. Thanks to
6786 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6787 algorithm to openssl-dev.
6790 *) The evp_local.h macros were using 'c.##kname' which resulted in
6791 invalid expansion on some systems (SCO 5.0.5 for example).
6792 Corrected to 'c.kname'.
6793 [Phillip Porch <root@theporch.com>]
6795 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6796 a STACK of email addresses from a certificate or request, these look
6797 in the subject name and the subject alternative name extensions and
6798 omit any duplicate addresses.
6801 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6802 This makes DSA verification about 2 % faster.
6805 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6806 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6807 plus overhead for 1024 bit moduli).
6808 This makes exponentiations about 0.5 % faster for 1024 bit
6809 exponents (as measured by "openssl speed rsa2048").
6812 *) Rename memory handling macros to avoid conflicts with other
6814 Malloc => OPENSSL_malloc
6815 Malloc_locked => OPENSSL_malloc_locked
6816 Realloc => OPENSSL_realloc
6817 Free => OPENSSL_free
6820 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6821 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6824 *) CygWin32 support.
6825 [John Jarvie <jjarvie@newsguy.com>]
6827 *) The type-safe stack code has been rejigged. It is now only compiled
6828 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6829 by default all type-specific stack functions are "#define"d back to
6830 standard stack functions. This results in more streamlined output
6831 but retains the type-safety checking possibilities of the original
6835 *) The STACK code has been cleaned up, and certain type declarations
6836 that didn't make a lot of sense have been brought in line. This has
6837 also involved a cleanup of sorts in safestack.h to more correctly
6838 map type-safe stack functions onto their plain stack counterparts.
6839 This work has also resulted in a variety of "const"ifications of
6840 lots of the code, especially "_cmp" operations which should normally
6841 be prototyped with "const" parameters anyway.
6844 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6845 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6846 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6847 where all of 'md' is used each time the PRNG is used, but 'state'
6848 is used only indexed by a cyclic counter. As entropy may not be
6849 well distributed from the beginning, 'md' is important as a
6850 chaining variable. However, the output function chains only half
6851 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6852 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6853 in all of 'state' being rewritten, with the new values depending
6854 on virtually all of 'md'. This overcomes the 80 bit limitation.)
6857 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
6858 the handshake is continued after ssl_verify_cert_chain();
6859 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
6860 can lead to 'unexplainable' connection aborts later.
6861 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
6863 *) Major EVP API cipher revision.
6864 Add hooks for extra EVP features. This allows various cipher
6865 parameters to be set in the EVP interface. Support added for variable
6866 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
6867 setting of RC2 and RC5 parameters.
6869 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
6872 Remove lots of duplicated code from the EVP library. For example *every*
6873 cipher init() function handles the 'iv' in the same way according to the
6874 cipher mode. They also all do nothing if the 'key' parameter is NULL and
6875 for CFB and OFB modes they zero ctx->num.
6877 New functionality allows removal of S/MIME code RC2 hack.
6879 Most of the routines have the same form and so can be declared in terms
6882 By shifting this to the top level EVP_CipherInit() it can be removed from
6883 all individual ciphers. If the cipher wants to handle IVs or keys
6884 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
6887 Change lots of functions like EVP_EncryptUpdate() to now return a
6888 value: although software versions of the algorithms cannot fail
6889 any installed hardware versions can.
6892 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
6893 this option is set, tolerate broken clients that send the negotiated
6894 protocol version number instead of the requested protocol version
6898 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
6899 i.e. non-zero for export ciphersuites, zero otherwise.
6900 Previous versions had this flag inverted, inconsistent with
6901 rsa_tmp_cb (..._TMP_RSA_CB).
6902 [Bodo Moeller; problem reported by Amit Chopra]
6904 *) Add missing DSA library text string. Work around for some IIS
6905 key files with invalid SEQUENCE encoding.
6908 *) Add a document (doc/standards.txt) that list all kinds of standards
6909 and so on that are implemented in OpenSSL.
6912 *) Enhance c_rehash script. Old version would mishandle certificates
6913 with the same subject name hash and wouldn't handle CRLs at all.
6914 Added -fingerprint option to crl utility, to support new c_rehash
6918 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
6921 *) Fix for SSL server purpose checking. Server checking was
6922 rejecting certificates which had extended key usage present
6923 but no ssl client purpose.
6924 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
6926 *) Make PKCS#12 code work with no password. The PKCS#12 spec
6927 is a little unclear about how a blank password is handled.
6928 Since the password in encoded as a BMPString with terminating
6929 double NULL a zero length password would end up as just the
6930 double NULL. However no password at all is different and is
6931 handled differently in the PKCS#12 key generation code. NS
6932 treats a blank password as zero length. MSIE treats it as no
6933 password on export: but it will try both on import. We now do
6934 the same: PKCS12_parse() tries zero length and no password if
6935 the password is set to "" or NULL (NULL is now a valid password:
6936 it wasn't before) as does the pkcs12 application.
6939 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
6940 perror when PEM_read_bio_X509_REQ fails, the error message must
6941 be obtained from the error queue.
6944 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
6945 it in ERR_remove_state if appropriate, and change ERR_get_state
6946 accordingly to avoid race conditions (this is necessary because
6947 thread_hash is no longer constant once set).
6950 *) Bugfix for linux-elf makefile.one.
6953 *) RSA_get_default_method() will now cause a default
6954 RSA_METHOD to be chosen if one doesn't exist already.
6955 Previously this was only set during a call to RSA_new()
6956 or RSA_new_method(NULL) meaning it was possible for
6957 RSA_get_default_method() to return NULL.
6960 *) Added native name translation to the existing DSO code
6961 that will convert (if the flag to do so is set) filenames
6962 that are sufficiently small and have no path information
6963 into a canonical native form. Eg. "blah" converted to
6964 "libblah.so" or "blah.dll" etc.
6967 *) New function ERR_error_string_n(e, buf, len) which is like
6968 ERR_error_string(e, buf), but writes at most 'len' bytes
6969 including the 0 terminator. For ERR_error_string_n, 'buf'
6971 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
6973 *) CONF library reworked to become more general. A new CONF
6974 configuration file reader "class" is implemented as well as a
6975 new functions (NCONF_*, for "New CONF") to handle it. The now
6976 old CONF_* functions are still there, but are reimplemented to
6977 work in terms of the new functions. Also, a set of functions
6978 to handle the internal storage of the configuration data is
6979 provided to make it easier to write new configuration file
6980 reader "classes" (I can definitely see something reading a
6981 configuration file in XML format, for example), called _CONF_*,
6982 or "the configuration storage API"...
6984 The new configuration file reading functions are:
6986 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
6987 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
6989 NCONF_default, NCONF_WIN32
6991 NCONF_dump_fp, NCONF_dump_bio
6993 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
6994 NCONF_new creates a new CONF object. This works in the same way
6995 as other interfaces in OpenSSL, like the BIO interface.
6996 NCONF_dump_* dump the internal storage of the configuration file,
6997 which is useful for debugging. All other functions take the same
6998 arguments as the old CONF_* functions wth the exception of the
6999 first that must be a `CONF *' instead of a `LHASH *'.
7001 To make it easer to use the new classes with the old CONF_* functions,
7002 the function CONF_set_default_method is provided.
7005 *) Add '-tls1' option to 'openssl ciphers', which was already
7006 mentioned in the documentation but had not been implemented.
7007 (This option is not yet really useful because even the additional
7008 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
7011 *) Initial DSO code added into libcrypto for letting OpenSSL (and
7012 OpenSSL-based applications) load shared libraries and bind to
7013 them in a portable way.
7014 [Geoff Thorpe, with contributions from Richard Levitte]
7016 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
7018 *) Make sure _lrotl and _lrotr are only used with MSVC.
7020 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
7021 (the default implementation of RAND_status).
7023 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
7024 to '-clrext' (= clear extensions), as intended and documented.
7025 [Bodo Moeller; inconsistency pointed out by Michael Attili
7028 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
7029 was larger than the MD block size.
7030 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
7032 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
7033 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
7034 using the passed key: if the passed key was a private key the result
7035 of X509_print(), for example, would be to print out all the private key
7039 *) des_quad_cksum() byte order bug fix.
7040 [Ulf Möller, using the problem description in krb4-0.9.7, where
7041 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
7043 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
7045 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
7047 *) For easily testing in shell scripts whether some command
7048 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
7049 returns with exit code 0 iff no command of the given name is available.
7050 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
7051 the output goes to stdout and nothing is printed to stderr.
7052 Additional arguments are always ignored.
7054 Since for each cipher there is a command of the same name,
7055 the 'no-cipher' compilation switches can be tested this way.
7057 ('openssl no-XXX' is not able to detect pseudo-commands such
7058 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
7061 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
7064 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
7065 is set; it will be thrown away anyway because each handshake creates
7067 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
7068 to parameters -- in previous versions (since OpenSSL 0.9.3) the
7069 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
7070 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
7073 *) New s_client option -ign_eof: EOF at stdin is ignored, and
7074 'Q' and 'R' lose their special meanings (quit/renegotiate).
7075 This is part of what -quiet does; unlike -quiet, -ign_eof
7076 does not suppress any output.
7079 *) Add compatibility options to the purpose and trust code. The
7080 purpose X509_PURPOSE_ANY is "any purpose" which automatically
7081 accepts a certificate or CA, this was the previous behaviour,
7082 with all the associated security issues.
7084 X509_TRUST_COMPAT is the old trust behaviour: only and
7085 automatically trust self signed roots in certificate store. A
7086 new trust setting X509_TRUST_DEFAULT is used to specify that
7087 a purpose has no associated trust setting and it should instead
7088 use the value in the default purpose.
7091 *) Fix the PKCS#8 DSA private key code so it decodes keys again
7092 and fix a memory leak.
7095 *) In util/mkerr.pl (which implements 'make errors'), preserve
7096 reason strings from the previous version of the .c file, as
7097 the default to have only downcase letters (and digits) in
7098 automatically generated reasons codes is not always appropriate.
7101 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
7102 using strerror. Previously, ERR_reason_error_string() returned
7103 library names as reason strings for SYSerr; but SYSerr is a special
7104 case where small numbers are errno values, not library numbers.
7107 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7108 converts DSA parameters into DH parameters. (When creating parameters,
7109 DSA_generate_parameters is used.)
7112 *) Include 'length' (recommended exponent length) in C code generated
7113 by 'openssl dhparam -C'.
7116 *) The second argument to set_label in perlasm was already being used
7117 so couldn't be used as a "file scope" flag. Moved to third argument
7121 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7122 instead of RAND_bytes for encryption IVs and salts.
7125 *) Include RAND_status() into RAND_METHOD instead of implementing
7126 it only for md_rand.c Otherwise replacing the PRNG by calling
7127 RAND_set_rand_method would be impossible.
7130 *) Don't let DSA_generate_key() enter an infinite loop if the random
7131 number generation fails.
7134 *) New 'rand' application for creating pseudo-random output.
7137 *) Added configuration support for Linux/IA64
7138 [Rolf Haberrecker <rolf@suse.de>]
7140 *) Assembler module support for Mingw32.
7143 *) Shared library support for HPUX (in shlib/).
7144 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7146 *) Shared library support for Solaris gcc.
7147 [Lutz Behnke <behnke@trustcenter.de>]
7149 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7151 *) PKCS7_encrypt() was adding text MIME headers twice because they
7152 were added manually and by SMIME_crlf_copy().
7155 *) In bntest.c don't call BN_rand with zero bits argument.
7156 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7158 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7159 case was implemented. This caused BN_div_recp() to fail occasionally.
7162 *) Add an optional second argument to the set_label() in the perl
7163 assembly language builder. If this argument exists and is set
7164 to 1 it signals that the assembler should use a symbol whose
7165 scope is the entire file, not just the current function. This
7166 is needed with MASM which uses the format label:: for this scope.
7167 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7169 *) Change the ASN1 types so they are typedefs by default. Before
7170 almost all types were #define'd to ASN1_STRING which was causing
7171 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7175 *) Change names of new functions to the new get1/get0 naming
7176 convention: After 'get1', the caller owns a reference count
7177 and has to call ..._free; 'get0' returns a pointer to some
7178 data structure without incrementing reference counters.
7179 (Some of the existing 'get' functions increment a reference
7180 counter, some don't.)
7181 Similarly, 'set1' and 'add1' functions increase reference
7182 counters or duplicate objects.
7185 *) Allow for the possibility of temp RSA key generation failure:
7186 the code used to assume it always worked and crashed on failure.
7189 *) Fix potential buffer overrun problem in BIO_printf().
7190 [Ulf Möller, using public domain code by Patrick Powell; problem
7191 pointed out by David Sacerdote <das33@cornell.edu>]
7193 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7194 RAND_egd() and RAND_status(). In the command line application,
7195 the EGD socket can be specified like a seed file using RANDFILE
7199 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7200 Some CAs (e.g. Verisign) distribute certificates in this form.
7203 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7204 list to exclude them. This means that no special compilation option
7205 is needed to use anonymous DH: it just needs to be included in the
7209 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7210 EVP_MD_type. The old functionality is available in a new macro called
7211 EVP_MD_md(). Change code that uses it and update docs.
7214 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7215 where the 'void *' argument is replaced by a function pointer argument.
7216 Previously 'void *' was abused to point to functions, which works on
7217 many platforms, but is not correct. As these functions are usually
7218 called by macros defined in OpenSSL header files, most source code
7219 should work without changes.
7222 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7223 sections with information on -D... compiler switches used for
7224 compiling the library so that applications can see them. To enable
7225 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7226 must be defined. E.g.,
7227 #define OPENSSL_ALGORITHM_DEFINES
7228 #include <openssl/opensslconf.h>
7229 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7230 [Richard Levitte, Ulf and Bodo Möller]
7232 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7236 *) Change the 'other' type in certificate aux info to a STACK_OF
7237 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7238 the required ASN1 format: arbitrary types determined by an OID.
7241 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7242 argument to 'req'. This is not because the function is newer or
7243 better than others it just uses the work 'NEW' in the certificate
7244 request header lines. Some software needs this.
7247 *) Reorganise password command line arguments: now passwords can be
7248 obtained from various sources. Delete the PEM_cb function and make
7249 it the default behaviour: i.e. if the callback is NULL and the
7250 usrdata argument is not NULL interpret it as a null terminated pass
7251 phrase. If usrdata and the callback are NULL then the pass phrase
7252 is prompted for as usual.
7255 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7256 the support is automatically enabled. The resulting binaries will
7257 autodetect the card and use it if present.
7258 [Ben Laurie and Compaq Inc.]
7260 *) Work around for Netscape hang bug. This sends certificate request
7261 and server done in one record. Since this is perfectly legal in the
7262 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7263 the bugs/SSLv3 entry for more info.
7266 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7269 *) Add -rand argument to smime and pkcs12 applications and read/write
7273 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7276 *) Add command line password options to the remaining applications.
7279 *) Bug fix for BN_div_recp() for numerators with an even number of
7283 *) More tests in bntest.c, and changed test_bn output.
7286 *) ./config recognizes MacOS X now.
7289 *) Bug fix for BN_div() when the first words of num and divsor are
7290 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7293 *) Add support for various broken PKCS#8 formats, and command line
7294 options to produce them.
7297 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7298 get temporary BIGNUMs from a BN_CTX.
7301 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7305 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7306 include a #define from the old name to the new. The original intent
7307 was that statically linked binaries could for example just call
7308 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7309 link with digests. This never worked becayse SSLeay_add_all_digests()
7310 and SSLeay_add_all_ciphers() were in the same source file so calling
7311 one would link with the other. They are now in separate source files.
7314 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7317 *) Use a less unusual form of the Miller-Rabin primality test (it used
7318 a binary algorithm for exponentiation integrated into the Miller-Rabin
7319 loop, our standard modexp algorithms are faster).
7322 *) Support for the EBCDIC character set completed.
7323 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7325 *) Source code cleanups: use const where appropriate, eliminate casts,
7326 use void * instead of char * in lhash.
7329 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7330 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7331 this the server could overwrite ephemeral keys that the client
7335 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7336 using 50 iterations of the Rabin-Miller test.
7338 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7339 iterations of the Rabin-Miller test as required by the appendix
7340 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7341 As BN_is_prime_fasttest includes trial division, DSA parameter
7342 generation becomes much faster.
7344 This implies a change for the callback functions in DSA_is_prime
7345 and DSA_generate_parameters: The callback function is called once
7346 for each positive witness in the Rabin-Miller test, not just
7347 occasionally in the inner loop; and the parameters to the
7348 callback function now provide an iteration count for the outer
7349 loop rather than for the current invocation of the inner loop.
7350 DSA_generate_parameters additionally can call the callback
7351 function with an 'iteration count' of -1, meaning that a
7352 candidate has passed the trial division test (when q is generated
7353 from an application-provided seed, trial division is skipped).
7356 *) New function BN_is_prime_fasttest that optionally does trial
7357 division before starting the Rabin-Miller test and has
7358 an additional BN_CTX * argument (whereas BN_is_prime always
7359 has to allocate at least one BN_CTX).
7360 'callback(1, -1, cb_arg)' is called when a number has passed the
7361 trial division stage.
7364 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7368 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7371 *) New function BN_pseudo_rand().
7374 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7375 bignum version of BN_from_montgomery() with the working code from
7376 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7380 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7381 made it impossible to use the same SSL_SESSION data structure in
7382 SSL2 clients in multiple threads.
7385 *) The return value of RAND_load_file() no longer counts bytes obtained
7386 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7387 to seed the PRNG (previously an explicit byte count was required).
7388 [Ulf Möller, Bodo Möller]
7390 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7391 used (char *) instead of (void *) and had casts all over the place.
7394 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7397 *) Retain source code compatibility for BN_prime_checks macro:
7398 BN_is_prime(..., BN_prime_checks, ...) now uses
7399 BN_prime_checks_for_size to determine the appropriate number of
7400 Rabin-Miller iterations.
7403 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7404 DH_CHECK_P_NOT_SAFE_PRIME.
7405 (Check if this is true? OpenPGP calls them "strong".)
7408 *) Merge the functionality of "dh" and "gendh" programs into a new program
7409 "dhparam". The old programs are retained for now but will handle DH keys
7410 (instead of parameters) in future.
7413 *) Make the ciphers, s_server and s_client programs check the return values
7414 when a new cipher list is set.
7417 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7418 ciphers. Before when the 56bit ciphers were enabled the sorting was
7421 The syntax for the cipher sorting has been extended to support sorting by
7422 cipher-strength (using the strength_bits hard coded in the tables).
7423 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7425 Fix a bug in the cipher-command parser: when supplying a cipher command
7426 string with an "undefined" symbol (neither command nor alphanumeric
7427 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7428 an error is flagged.
7430 Due to the strength-sorting extension, the code of the
7431 ssl_create_cipher_list() function was completely rearranged. I hope that
7432 the readability was also increased :-)
7433 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7435 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7436 for the first serial number and places 2 in the serial number file. This
7437 avoids problems when the root CA is created with serial number zero and
7438 the first user certificate has the same issuer name and serial number
7442 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7443 the new code. Add documentation for this stuff.
7446 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7447 X509_*() to X509at_*() on the grounds that they don't handle X509
7448 structures and behave in an analagous way to the X509v3 functions:
7449 they shouldn't be called directly but wrapper functions should be used
7452 So we also now have some wrapper functions that call the X509at functions
7453 when passed certificate requests. (TO DO: similar things can be done with
7454 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7455 things. Some of these need some d2i or i2d and print functionality
7456 because they handle more complex structures.)
7459 *) Add missing #ifndefs that caused missing symbols when building libssl
7460 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7461 NO_RSA in ssl/s2*.c.
7462 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7464 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7465 has a return value which indicates the quality of the random data
7466 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7467 error queue. New function RAND_pseudo_bytes() generates output that is
7468 guaranteed to be unique but not unpredictable. RAND_add is like
7469 RAND_seed, but takes an extra argument for an entropy estimate
7470 (RAND_seed always assumes full entropy).
7473 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7474 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7475 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7476 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7477 false-positive rate of at most 2^-80 for random input.
7480 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7483 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7484 in the 0.9.5 release), this returns the chain
7485 from an X509_CTX structure with a dup of the stack and all
7486 the X509 reference counts upped: so the stack will exist
7487 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7490 Also make SSL_SESSION_print() print out the verify return
7494 *) Add manpage for the pkcs12 command. Also change the default
7495 behaviour so MAC iteration counts are used unless the new
7496 -nomaciter option is used. This improves file security and
7497 only older versions of MSIE (4.0 for example) need it.
7500 *) Honor the no-xxx Configure options when creating .DEF files.
7503 *) Add PKCS#10 attributes to field table: challengePassword,
7504 unstructuredName and unstructuredAddress. These are taken from
7505 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7506 international characters are used.
7508 More changes to X509_ATTRIBUTE code: allow the setting of types
7509 based on strings. Remove the 'loc' parameter when adding
7510 attributes because these will be a SET OF encoding which is sorted
7514 *) Initial changes to the 'req' utility to allow request generation
7515 automation. This will allow an application to just generate a template
7516 file containing all the field values and have req construct the
7519 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7520 used all over the place including certificate requests and PKCS#7
7521 structures. They are currently handled manually where necessary with
7522 some primitive wrappers for PKCS#7. The new functions behave in a
7523 manner analogous to the X509 extension functions: they allow
7524 attributes to be looked up by NID and added.
7526 Later something similar to the X509V3 code would be desirable to
7527 automatically handle the encoding, decoding and printing of the
7528 more complex types. The string types like challengePassword can
7529 be handled by the string table functions.
7531 Also modified the multi byte string table handling. Now there is
7532 a 'global mask' which masks out certain types. The table itself
7533 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7534 is useful when for example there is only one permissible type
7535 (as in countryName) and using the mask might result in no valid
7539 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7540 SSL_get_peer_finished to allow applications to obtain the latest
7541 Finished messages sent to the peer or expected from the peer,
7542 respectively. (SSL_get_peer_finished is usually the Finished message
7543 actually received from the peer, otherwise the protocol will be aborted.)
7545 As the Finished message are message digests of the complete handshake
7546 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7547 be used for external authentication procedures when the authentication
7548 provided by SSL/TLS is not desired or is not enough.
7551 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7552 the host supports BWX extension and if Compaq C is present on the
7553 $PATH. Just exploiting of the BWX extension results in 20-30%
7554 performance kick for some algorithms, e.g. DES and RC4 to mention
7555 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7559 *) Add support for MS "fast SGC". This is arguably a violation of the
7560 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7561 weak crypto and after checking the certificate is SGC a second one
7562 with strong crypto. MS SGC stops the first handshake after receiving
7563 the server certificate message and sends a second client hello. Since
7564 a server will typically do all the time consuming operations before
7565 expecting any further messages from the client (server key exchange
7566 is the most expensive) there is little difference between the two.
7568 To get OpenSSL to support MS SGC we have to permit a second client
7569 hello message after we have sent server done. In addition we have to
7570 reset the MAC if we do get this second client hello.
7573 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7574 if a DER encoded private key is RSA or DSA traditional format. Changed
7575 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7576 format DER encoded private key. Newer code should use PKCS#8 format which
7577 has the key type encoded in the ASN1 structure. Added DER private key
7578 support to pkcs8 application.
7581 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7582 ciphersuites has been selected (as required by the SSL 3/TLS 1
7583 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7584 is set, we interpret this as a request to violate the specification
7585 (the worst that can happen is a handshake failure, and 'correct'
7586 behaviour would result in a handshake failure anyway).
7589 *) In SSL_CTX_add_session, take into account that there might be multiple
7590 SSL_SESSION structures with the same session ID (e.g. when two threads
7591 concurrently obtain them from an external cache).
7592 The internal cache can handle only one SSL_SESSION with a given ID,
7593 so if there's a conflict, we now throw out the old one to achieve
7597 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7598 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7599 some routines that use cipher OIDs: some ciphers do not have OIDs
7600 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7604 *) Simplify the trust setting structure and code. Now we just have
7605 two sequences of OIDs for trusted and rejected settings. These will
7606 typically have values the same as the extended key usage extension
7607 and any application specific purposes.
7609 The trust checking code now has a default behaviour: it will just
7610 check for an object with the same NID as the passed id. Functions can
7611 be provided to override either the default behaviour or the behaviour
7612 for a given id. SSL client, server and email already have functions
7613 in place for compatibility: they check the NID and also return "trusted"
7614 if the certificate is self signed.
7617 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7618 traditional format into an EVP_PKEY structure.
7621 *) Add a password callback function PEM_cb() which either prompts for
7622 a password if usr_data is NULL or otherwise assumes it is a null
7623 terminated password. Allow passwords to be passed on command line
7624 environment or config files in a few more utilities.
7627 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7628 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7629 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7630 Update documentation.
7633 *) Support for ASN1 "NULL" type. This could be handled before by using
7634 ASN1_TYPE but there wasn't any function that would try to read a NULL
7635 and produce an error if it couldn't. For compatibility we also have
7636 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7637 don't allocate anything because they don't need to.
7640 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7642 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7644 *) Rebuild of the memory allocation routines used by OpenSSL code and
7645 possibly others as well. The purpose is to make an interface that
7646 provide hooks so anyone can build a separate set of allocation and
7647 deallocation routines to be used by OpenSSL, for example memory
7648 pool implementations, or something else, which was previously hard
7649 since Malloc(), Realloc() and Free() were defined as macros having
7650 the values malloc, realloc and free, respectively (except for Win32
7651 compilations). The same is provided for memory debugging code.
7652 OpenSSL already comes with functionality to find memory leaks, but
7653 this gives people a chance to debug other memory problems.
7655 With these changes, a new set of functions and macros have appeared:
7657 CRYPTO_set_mem_debug_functions() [F]
7658 CRYPTO_get_mem_debug_functions() [F]
7659 CRYPTO_dbg_set_options() [F]
7660 CRYPTO_dbg_get_options() [F]
7661 CRYPTO_malloc_debug_init() [M]
7663 The memory debug functions are NULL by default, unless the library
7664 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7665 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7666 gives the standard debugging functions that come with OpenSSL) or
7667 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7668 provided by the library user) must be used. When the standard
7669 debugging functions are used, CRYPTO_dbg_set_options can be used to
7670 request additional information:
7671 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7672 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7674 Also, things like CRYPTO_set_mem_functions will always give the
7675 expected result (the new set of functions is used for allocation
7676 and deallocation) at all times, regardless of platform and compiler
7679 To finish it up, some functions that were never use in any other
7680 way than through macros have a new API and new semantic:
7683 CRYPTO_dbg_realloc()
7686 All macros of value have retained their old syntax.
7687 [Richard Levitte and Bodo Moeller]
7689 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7690 ordering of SMIMECapabilities wasn't in "strength order" and there
7691 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7695 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7696 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7697 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7699 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7700 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7701 functionality to handle multipart/signed properly) and a utility
7702 called 'smime' to call all this stuff. This is based on code I
7703 originally wrote for Celo who have kindly allowed it to be
7704 included in OpenSSL.
7707 *) Add variants des_set_key_checked and des_set_key_unchecked of
7708 des_set_key (aka des_key_sched). Global variable des_check_key
7709 decides which of these is called by des_set_key; this way
7710 des_check_key behaves as it always did, but applications and
7711 the library itself, which was buggy for des_check_key == 1,
7712 have a cleaner way to pick the version they need.
7715 *) New function PKCS12_newpass() which changes the password of a
7719 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7720 dynamic mix. In both cases the ids can be used as an index into the
7721 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7722 functions so they accept a list of the field values and the
7723 application doesn't need to directly manipulate the X509_TRUST
7727 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7731 *) Modify the way the V3 extension code looks up extensions. This now
7732 works in a similar way to the object code: we have some "standard"
7733 extensions in a static table which is searched with OBJ_bsearch()
7734 and the application can add dynamic ones if needed. The file
7735 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7736 updated whenever a new extension is added to the core code and kept
7737 in ext_nid order. There is a simple program 'tabtest.c' which checks
7738 this. New extensions are not added too often so this file can readily
7739 be maintained manually.
7741 There are two big advantages in doing things this way. The extensions
7742 can be looked up immediately and no longer need to be "added" using
7743 X509V3_add_standard_extensions(): this function now does nothing.
7744 [Side note: I get *lots* of email saying the extension code doesn't
7745 work because people forget to call this function]
7746 Also no dynamic allocation is done unless new extensions are added:
7747 so if we don't add custom extensions there is no need to call
7748 X509V3_EXT_cleanup().
7751 *) Modify enc utility's salting as follows: make salting the default. Add a
7752 magic header, so unsalted files fail gracefully instead of just decrypting
7753 to garbage. This is because not salting is a big security hole, so people
7754 should be discouraged from doing it.
7757 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7758 digest to be passed on the command line but it only used this
7759 parameter when signing a certificate. Modified so all relevant
7760 operations are affected by the digest parameter including the
7761 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7762 DSA key was used because it didn't fix the digest.
7765 *) Initial certificate chain verify code. Currently tests the untrusted
7766 certificates for consistency with the verify purpose (which is set
7767 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7769 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7770 this is because it will reject chains with invalid extensions whereas
7771 every previous version of OpenSSL and SSLeay made no checks at all.
7773 Trust code: checks the root CA for the relevant trust settings. Trust
7774 settings have an initial value consistent with the verify purpose: e.g.
7775 if the verify purpose is for SSL client use it expects the CA to be
7776 trusted for SSL client use. However the default value can be changed to
7777 permit custom trust settings: one example of this would be to only trust
7778 certificates from a specific "secure" set of CAs.
7780 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7781 which should be used for version portability: especially since the
7782 verify structure is likely to change more often now.
7784 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7785 to set them. If not set then assume SSL clients will verify SSL servers
7788 Two new options to the verify program: -untrusted allows a set of
7789 untrusted certificates to be passed in and -purpose which sets the
7790 intended purpose of the certificate. If a purpose is set then the
7791 new chain verify code is used to check extension consistency.
7794 *) Support for the authority information access extension.
7797 *) Modify RSA and DSA PEM read routines to transparently handle
7798 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7799 public keys in a format compatible with certificate
7800 SubjectPublicKeyInfo structures. Unfortunately there were already
7801 functions called *_PublicKey_* which used various odd formats so
7802 these are retained for compatibility: however the DSA variants were
7803 never in a public release so they have been deleted. Changed dsa/rsa
7804 utilities to handle the new format: note no releases ever handled public
7805 keys so we should be OK.
7807 The primary motivation for this change is to avoid the same fiasco
7808 that dogs private keys: there are several incompatible private key
7809 formats some of which are standard and some OpenSSL specific and
7810 require various evil hacks to allow partial transparent handling and
7811 even then it doesn't work with DER formats. Given the option anything
7812 other than PKCS#8 should be dumped: but the other formats have to
7813 stay in the name of compatibility.
7815 With public keys and the benefit of hindsight one standard format
7816 is used which works with EVP_PKEY, RSA or DSA structures: though
7817 it clearly returns an error if you try to read the wrong kind of key.
7819 Added a -pubkey option to the 'x509' utility to output the public key.
7820 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7821 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7822 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7823 that do the same as the EVP_PKEY_assign_*() except they up the
7824 reference count of the added key (they don't "swallow" the
7828 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7829 CRLs would fail if the file contained no certificates or no CRLs:
7830 added a new function to read in both types and return the number
7831 read: this means that if none are read it will be an error. The
7832 DER versions of the certificate and CRL reader would always fail
7833 because it isn't possible to mix certificates and CRLs in DER format
7834 without choking one or the other routine. Changed this to just read
7835 a certificate: this is the best we can do. Also modified the code
7836 in apps/verify.c to take notice of return codes: it was previously
7837 attempting to read in certificates from NULL pointers and ignoring
7838 any errors: this is one reason why the cert and CRL reader seemed
7839 to work. It doesn't check return codes from the default certificate
7840 routines: these may well fail if the certificates aren't installed.
7843 *) Code to support otherName option in GeneralName.
7846 *) First update to verify code. Change the verify utility
7847 so it warns if it is passed a self signed certificate:
7848 for consistency with the normal behaviour. X509_verify
7849 has been modified to it will now verify a self signed
7850 certificate if *exactly* the same certificate appears
7851 in the store: it was previously impossible to trust a
7852 single self signed certificate. This means that:
7853 openssl verify ss.pem
7854 now gives a warning about a self signed certificate but
7855 openssl verify -CAfile ss.pem ss.pem
7859 *) For servers, store verify_result in SSL_SESSION data structure
7860 (and add it to external session representation).
7861 This is needed when client certificate verifications fails,
7862 but an application-provided verification callback (set by
7863 SSL_CTX_set_cert_verify_callback) allows accepting the session
7864 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
7865 but returns 1): When the session is reused, we have to set
7866 ssl->verify_result to the appropriate error code to avoid
7868 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
7870 *) Fix a bug in the new PKCS#7 code: it didn't consider the
7871 case in PKCS7_dataInit() where the signed PKCS7 structure
7872 didn't contain any existing data because it was being created.
7873 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
7875 *) Add a salt to the key derivation routines in enc.c. This
7876 forms the first 8 bytes of the encrypted file. Also add a
7877 -S option to allow a salt to be input on the command line.
7880 *) New function X509_cmp(). Oddly enough there wasn't a function
7881 to compare two certificates. We do this by working out the SHA1
7882 hash and comparing that. X509_cmp() will be needed by the trust
7886 *) SSL_get1_session() is like SSL_get_session(), but increments
7887 the reference count in the SSL_SESSION returned.
7888 [Geoff Thorpe <geoff@eu.c2.net>]
7890 *) Fix for 'req': it was adding a null to request attributes.
7891 Also change the X509_LOOKUP and X509_INFO code to handle
7892 certificate auxiliary information.
7895 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
7899 *) Add the possibility to add extra information to the memory leak
7900 detecting output, to form tracebacks, showing from where each
7901 allocation was originated: CRYPTO_push_info("constant string") adds
7902 the string plus current file name and line number to a per-thread
7903 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
7904 is like calling CYRPTO_pop_info() until the stack is empty.
7905 Also updated memory leak detection code to be multi-thread-safe.
7908 *) Add options -text and -noout to pkcs7 utility and delete the
7909 encryption options which never did anything. Update docs.
7912 *) Add options to some of the utilities to allow the pass phrase
7913 to be included on either the command line (not recommended on
7914 OSes like Unix) or read from the environment. Update the
7915 manpages and fix a few bugs.
7918 *) Add a few manpages for some of the openssl commands.
7921 *) Fix the -revoke option in ca. It was freeing up memory twice,
7922 leaking and not finding already revoked certificates.
7925 *) Extensive changes to support certificate auxiliary information.
7926 This involves the use of X509_CERT_AUX structure and X509_AUX
7927 functions. An X509_AUX function such as PEM_read_X509_AUX()
7928 can still read in a certificate file in the usual way but it
7929 will also read in any additional "auxiliary information". By
7930 doing things this way a fair degree of compatibility can be
7931 retained: existing certificates can have this information added
7932 using the new 'x509' options.
7934 Current auxiliary information includes an "alias" and some trust
7935 settings. The trust settings will ultimately be used in enhanced
7936 certificate chain verification routines: currently a certificate
7937 can only be trusted if it is self signed and then it is trusted
7941 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
7942 The problem was that one of the replacement routines had not been working
7943 since SSLeay releases. For now the offending routine has been replaced
7944 with non-optimised assembler. Even so, this now gives around 95%
7945 performance improvement for 1024 bit RSA signs.
7948 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
7949 handling. Most clients have the effective key size in bits equal to
7950 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
7951 A few however don't do this and instead use the size of the decrypted key
7952 to determine the RC2 key length and the AlgorithmIdentifier to determine
7953 the effective key length. In this case the effective key length can still
7954 be 40 bits but the key length can be 168 bits for example. This is fixed
7955 by manually forcing an RC2 key into the EVP_PKEY structure because the
7956 EVP code can't currently handle unusual RC2 key sizes: it always assumes
7957 the key length and effective key length are equal.
7960 *) Add a bunch of functions that should simplify the creation of
7961 X509_NAME structures. Now you should be able to do:
7962 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
7963 and have it automatically work out the correct field type and fill in
7964 the structures. The more adventurous can try:
7965 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
7966 and it will (hopefully) work out the correct multibyte encoding.
7969 *) Change the 'req' utility to use the new field handling and multibyte
7970 copy routines. Before the DN field creation was handled in an ad hoc
7971 way in req, ca, and x509 which was rather broken and didn't support
7972 BMPStrings or UTF8Strings. Since some software doesn't implement
7973 BMPStrings or UTF8Strings yet, they can be enabled using the config file
7974 using the dirstring_type option. See the new comment in the default
7975 openssl.cnf for more info.
7978 *) Make crypto/rand/md_rand.c more robust:
7979 - Assure unique random numbers after fork().
7980 - Make sure that concurrent threads access the global counter and
7981 md serializably so that we never lose entropy in them
7982 or use exactly the same state in multiple threads.
7983 Access to the large state is not always serializable because
7984 the additional locking could be a performance killer, and
7985 md should be large enough anyway.
7988 *) New file apps/app_rand.c with commonly needed functionality
7989 for handling the random seed file.
7991 Use the random seed file in some applications that previously did not:
7993 dsaparam -genkey (which also ignored its '-rand' option),
7996 x509 (when signing).
7997 Except on systems with /dev/urandom, it is crucial to have a random
7998 seed file at least for key creation, DSA signing, and for DH exchanges;
7999 for RSA signatures we could do without one.
8001 gendh and gendsa (unlike genrsa) used to read only the first byte
8002 of each file listed in the '-rand' option. The function as previously
8003 found in genrsa is now in app_rand.c and is used by all programs
8004 that support '-rand'.
8007 *) In RAND_write_file, use mode 0600 for creating files;
8008 don't just chmod when it may be too late.
8011 *) Report an error from X509_STORE_load_locations
8012 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
8015 *) New function ASN1_mbstring_copy() this copies a string in either
8016 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
8017 into an ASN1_STRING type. A mask of permissible types is passed
8018 and it chooses the "minimal" type to use or an error if not type
8022 *) Add function equivalents to the various macros in asn1.h. The old
8023 macros are retained with an M_ prefix. Code inside the library can
8024 use the M_ macros. External code (including the openssl utility)
8025 should *NOT* in order to be "shared library friendly".
8028 *) Add various functions that can check a certificate's extensions
8029 to see if it usable for various purposes such as SSL client,
8030 server or S/MIME and CAs of these types. This is currently
8031 VERY EXPERIMENTAL but will ultimately be used for certificate chain
8032 verification. Also added a -purpose flag to x509 utility to
8033 print out all the purposes.
8036 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
8040 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
8041 for, obtain and decode and extension and obtain its critical flag.
8042 This allows all the necessary extension code to be handled in a
8043 single function call.
8046 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
8047 platforms. See crypto/rc4/rc4_enc.c for further details.
8050 *) New -noout option to asn1parse. This causes no output to be produced
8051 its main use is when combined with -strparse and -out to extract data
8052 from a file (which may not be in ASN.1 format).
8055 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
8056 when producing the local key id.
8057 [Richard Levitte <levitte@stacken.kth.se>]
8059 *) New option -dhparam in s_server. This allows a DH parameter file to be
8060 stated explicitly. If it is not stated then it tries the first server
8061 certificate file. The previous behaviour hard coded the filename
8065 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
8066 a public key to be input or output. For example:
8067 openssl rsa -in key.pem -pubout -out pubkey.pem
8068 Also added necessary DSA public key functions to handle this.
8071 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
8072 in the message. This was handled by allowing
8073 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
8074 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
8076 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
8077 to the end of the strings whereas this didn't. This would cause problems
8078 if strings read with d2i_ASN1_bytes() were later modified.
8079 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
8081 *) Fix for base64 decode bug. When a base64 bio reads only one line of
8082 data and it contains EOF it will end up returning an error. This is
8083 caused by input 46 bytes long. The cause is due to the way base64
8084 BIOs find the start of base64 encoded data. They do this by trying a
8085 trial decode on each line until they find one that works. When they
8086 do a flag is set and it starts again knowing it can pass all the
8087 data directly through the decoder. Unfortunately it doesn't reset
8088 the context it uses. This means that if EOF is reached an attempt
8089 is made to pass two EOFs through the context and this causes the
8090 resulting error. This can also cause other problems as well. As is
8091 usual with these problems it takes *ages* to find and the fix is
8092 trivial: move one line.
8093 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
8095 *) Ugly workaround to get s_client and s_server working under Windows. The
8096 old code wouldn't work because it needed to select() on sockets and the
8097 tty (for keypresses and to see if data could be written). Win32 only
8098 supports select() on sockets so we select() with a 1s timeout on the
8099 sockets and then see if any characters are waiting to be read, if none
8100 are present then we retry, we also assume we can always write data to
8101 the tty. This isn't nice because the code then blocks until we've
8102 received a complete line of data and it is effectively polling the
8103 keyboard at 1s intervals: however it's quite a bit better than not
8104 working at all :-) A dedicated Windows application might handle this
8105 with an event loop for example.
8108 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8109 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8110 will be called when RSA_sign() and RSA_verify() are used. This is useful
8111 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8112 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8113 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8114 This necessitated the support of an extra signature type NID_md5_sha1
8115 for SSL signatures and modifications to the SSL library to use it instead
8116 of calling RSA_public_decrypt() and RSA_private_encrypt().
8119 *) Add new -verify -CAfile and -CApath options to the crl program, these
8120 will lookup a CRL issuers certificate and verify the signature in a
8121 similar way to the verify program. Tidy up the crl program so it
8122 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8123 less strict. It will now permit CRL extensions even if it is not
8124 a V2 CRL: this will allow it to tolerate some broken CRLs.
8127 *) Initialize all non-automatic variables each time one of the openssl
8128 sub-programs is started (this is necessary as they may be started
8129 multiple times from the "OpenSSL>" prompt).
8130 [Lennart Bang, Bodo Moeller]
8132 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8133 removing all other RSA functionality (this is what NO_RSA does). This
8134 is so (for example) those in the US can disable those operations covered
8135 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8139 *) Non-copying interface to BIO pairs.
8140 (still largely untested)
8143 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8144 ASCII string. This was handled independently in various places before.
8147 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8148 UTF8 strings a character at a time.
8151 *) Use client_version from client hello to select the protocol
8152 (s23_srvr.c) and for RSA client key exchange verification
8153 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8156 *) Add various utility functions to handle SPKACs, these were previously
8157 handled by poking round in the structure internals. Added new function
8158 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8159 print, verify and generate SPKACs. Based on an original idea from
8160 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8163 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8166 *) Allow the config file extension section to be overwritten on the
8167 command line. Based on an original idea from Massimiliano Pala
8168 <madwolf@comune.modena.it>. The new option is called -extensions
8169 and can be applied to ca, req and x509. Also -reqexts to override
8170 the request extensions in req and -crlexts to override the crl extensions
8174 *) Add new feature to the SPKAC handling in ca. Now you can include
8175 the same field multiple times by preceding it by "XXXX." for example:
8178 this is the same syntax as used in the req config file.
8181 *) Allow certificate extensions to be added to certificate requests. These
8182 are specified in a 'req_extensions' option of the req section of the
8183 config file. They can be printed out with the -text option to req but
8184 are otherwise ignored at present.
8187 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8188 data read consists of only the final block it would not decrypted because
8189 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8190 A misplaced 'break' also meant the decrypted final block might not be
8191 copied until the next read.
8194 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8195 a few extra parameters to the DH structure: these will be useful if
8196 for example we want the value of 'q' or implement X9.42 DH.
8199 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8200 provides hooks that allow the default DSA functions or functions on a
8201 "per key" basis to be replaced. This allows hardware acceleration and
8202 hardware key storage to be handled without major modification to the
8203 library. Also added low level modexp hooks and CRYPTO_EX structure and
8204 associated functions.
8207 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8208 as "read only": it can't be written to and the buffer it points to will
8209 not be freed. Reading from a read only BIO is much more efficient than
8210 a normal memory BIO. This was added because there are several times when
8211 an area of memory needs to be read from a BIO. The previous method was
8212 to create a memory BIO and write the data to it, this results in two
8213 copies of the data and an O(n^2) reading algorithm. There is a new
8214 function BIO_new_mem_buf() which creates a read only memory BIO from
8215 an area of memory. Also modified the PKCS#7 routines to use read only
8219 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8220 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8221 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8222 but a retry condition occured while trying to read the rest.
8225 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8226 NID_pkcs7_encrypted by default: this was wrong since this should almost
8227 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8228 the encrypted data type: this is a more sensible place to put it and it
8229 allows the PKCS#12 code to be tidied up that duplicated this
8233 *) Changed obj_dat.pl script so it takes its input and output files on
8234 the command line. This should avoid shell escape redirection problems
8238 *) Initial support for certificate extension requests, these are included
8239 in things like Xenroll certificate requests. Included functions to allow
8240 extensions to be obtained and added.
8243 *) -crlf option to s_client and s_server for sending newlines as
8244 CRLF (as required by many protocols).
8247 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8249 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8250 [Ralf S. Engelschall]
8252 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8253 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8255 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8259 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8260 DH parameters/keys (q is lost during that conversion, but the resulting
8261 DH parameters contain its length).
8263 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8264 much faster than DH_generate_parameters (which creates parameters
8265 where p = 2*q + 1), and also the smaller q makes DH computations
8266 much more efficient (160-bit exponentiation instead of 1024-bit
8267 exponentiation); so this provides a convenient way to support DHE
8268 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8269 utter importance to use
8270 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8272 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8273 when such DH parameters are used, because otherwise small subgroup
8274 attacks may become possible!
8277 *) Avoid memory leak in i2d_DHparams.
8280 *) Allow the -k option to be used more than once in the enc program:
8281 this allows the same encrypted message to be read by multiple recipients.
8284 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8285 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8286 it will always use the numerical form of the OID, even if it has a short
8290 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8291 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8292 otherwise bn_mod_exp was called. In the case of hardware keys for example
8293 no private key components need be present and it might store extra data
8294 in the RSA structure, which cannot be accessed from bn_mod_exp.
8295 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8296 private key operations.
8299 *) Added support for SPARC Linux.
8302 *) pem_password_cb function type incompatibly changed from
8303 typedef int pem_password_cb(char *buf, int size, int rwflag);
8305 ....(char *buf, int size, int rwflag, void *userdata);
8306 so that applications can pass data to their callbacks:
8307 The PEM[_ASN1]_{read,write}... functions and macros now take an
8308 additional void * argument, which is just handed through whenever
8309 the password callback is called.
8310 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8312 New function SSL_CTX_set_default_passwd_cb_userdata.
8314 Compatibility note: As many C implementations push function arguments
8315 onto the stack in reverse order, the new library version is likely to
8316 interoperate with programs that have been compiled with the old
8317 pem_password_cb definition (PEM_whatever takes some data that
8318 happens to be on the stack as its last argument, and the callback
8319 just ignores this garbage); but there is no guarantee whatsoever that
8322 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8323 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8324 problems not only on Windows, but also on some Unix platforms.
8325 To avoid problematic command lines, these definitions are now in an
8326 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8327 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8330 *) MIPS III/IV assembler module is reimplemented.
8333 *) More DES library cleanups: remove references to srand/rand and
8334 delete an unused file.
8337 *) Add support for the the free Netwide assembler (NASM) under Win32,
8338 since not many people have MASM (ml) and it can be hard to obtain.
8339 This is currently experimental but it seems to work OK and pass all
8340 the tests. Check out INSTALL.W32 for info.
8343 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8344 without temporary keys kept an extra copy of the server key,
8345 and connections with temporary keys did not free everything in case
8349 *) New function RSA_check_key and new openssl rsa option -check
8350 for verifying the consistency of RSA keys.
8351 [Ulf Moeller, Bodo Moeller]
8353 *) Various changes to make Win32 compile work:
8354 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8355 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8356 comparison" warnings.
8357 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8360 *) Add a debugging option to PKCS#5 v2 key generation function: when
8361 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8362 derived keys are printed to stderr.
8365 *) Copy the flags in ASN1_STRING_dup().
8366 [Roman E. Pavlov <pre@mo.msk.ru>]
8368 *) The x509 application mishandled signing requests containing DSA
8369 keys when the signing key was also DSA and the parameters didn't match.
8371 It was supposed to omit the parameters when they matched the signing key:
8372 the verifying software was then supposed to automatically use the CA's
8373 parameters if they were absent from the end user certificate.
8375 Omitting parameters is no longer recommended. The test was also
8376 the wrong way round! This was probably due to unusual behaviour in
8377 EVP_cmp_parameters() which returns 1 if the parameters match.
8378 This meant that parameters were omitted when they *didn't* match and
8379 the certificate was useless. Certificates signed with 'ca' didn't have
8381 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8383 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8384 The interface is as follows:
8385 Applications can use
8386 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8387 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8388 "off" is now the default.
8389 The library internally uses
8390 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8391 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8392 to disable memory-checking temporarily.
8394 Some inconsistent states that previously were possible (and were
8395 even the default) are now avoided.
8397 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8398 with each memory chunk allocated; this is occasionally more helpful
8399 than just having a counter.
8401 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8403 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8407 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8408 which largely parallels "options", but is for changing API behaviour,
8409 whereas "options" are about protocol behaviour.
8410 Initial "mode" flags are:
8412 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8413 a single record has been written.
8414 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8415 retries use the same buffer location.
8416 (But all of the contents must be
8420 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8423 *) Fix problems with no-hmac etc.
8424 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8426 *) New functions RSA_get_default_method(), RSA_set_method() and
8427 RSA_get_method(). These allows replacement of RSA_METHODs without having
8428 to mess around with the internals of an RSA structure.
8431 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8432 Also really enable memory leak checks in openssl.c and in some
8434 [Chad C. Mulligan, Bodo Moeller]
8436 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8437 up the length of negative integers. This has now been simplified to just
8438 store the length when it is first determined and use it later, rather
8439 than trying to keep track of where data is copied and updating it to
8441 [Steve Henson, reported by Brien Wheeler
8442 <bwheeler@authentica-security.com>]
8444 *) Add a new function PKCS7_signatureVerify. This allows the verification
8445 of a PKCS#7 signature but with the signing certificate passed to the
8446 function itself. This contrasts with PKCS7_dataVerify which assumes the
8447 certificate is present in the PKCS#7 structure. This isn't always the
8448 case: certificates can be omitted from a PKCS#7 structure and be
8449 distributed by "out of band" means (such as a certificate database).
8452 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8453 function prototypes in pem.h, also change util/mkdef.pl to add the
8454 necessary function names.
8457 *) mk1mf.pl (used by Windows builds) did not properly read the
8458 options set by Configure in the top level Makefile, and Configure
8459 was not even able to write more than one option correctly.
8460 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8463 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8464 file to be loaded from a BIO or FILE pointer. The BIO version will
8465 for example allow memory BIOs to contain config info.
8468 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8469 Whoever hopes to achieve shared-library compatibility across versions
8470 must use this, not the compile-time macro.
8471 (Exercise 0.9.4: Which is the minimum library version required by
8473 Note: All this applies only to multi-threaded programs, others don't
8477 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8478 through a BIO pair triggered the default case, i.e.
8479 SSLerr(...,SSL_R_UNKNOWN_STATE).
8482 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8483 can use the SSL library even if none of the specific BIOs is
8487 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8488 for the encoded length.
8489 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8491 *) Add initial documentation of the X509V3 functions.
8494 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8495 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8496 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8497 secure PKCS#8 private key format with a high iteration count.
8500 *) Fix determination of Perl interpreter: A perl or perl5
8501 _directory_ in $PATH was also accepted as the interpreter.
8502 [Ralf S. Engelschall]
8504 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8505 wrong with it but it was very old and did things like calling
8506 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8510 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8511 to use the new extension code.
8514 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8515 with macros. This should make it easier to change their form, add extra
8516 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8520 *) Add to configuration table a new entry that can specify an alternative
8521 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8522 according to Mark Crispin <MRC@Panda.COM>.
8526 *) DES CBC did not update the IV. Weird.
8529 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8530 Changing the behaviour of the former might break existing programs --
8531 where IV updating is needed, des_ncbc_encrypt can be used.
8534 *) When bntest is run from "make test" it drives bc to check its
8535 calculations, as well as internally checking them. If an internal check
8536 fails, it needs to cause bc to give a non-zero result or make test carries
8537 on without noticing the failure. Fixed.
8540 *) DES library cleanups.
8543 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8544 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8545 ciphers. NOTE: although the key derivation function has been verified
8546 against some published test vectors it has not been extensively tested
8547 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8551 *) Instead of "mkdir -p", which is not fully portable, use new
8552 Perl script "util/mkdir-p.pl".
8555 *) Rewrite the way password based encryption (PBE) is handled. It used to
8556 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8557 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8558 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8559 the 'parameter' field of the AlgorithmIdentifier is passed to the
8560 underlying key generation function so it must do its own ASN1 parsing.
8561 This has also changed the EVP_PBE_CipherInit() function which now has a
8562 'parameter' argument instead of literal salt and iteration count values
8563 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8566 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8567 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8568 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8569 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8570 value was just used as a "magic string" and not used directly its
8571 value doesn't matter.
8574 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8578 *) "linux-sparc64" configuration (ultrapenguin).
8579 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8580 "linux-sparc" configuration.
8581 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8583 *) config now generates no-xxx options for missing ciphers.
8586 *) Support the EBCDIC character set (work in progress).
8587 File ebcdic.c not yet included because it has a different license.
8588 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8590 *) Support BS2000/OSD-POSIX.
8591 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8593 *) Make callbacks for key generation use void * instead of char *.
8596 *) Make S/MIME samples compile (not yet tested).
8599 *) Additional typesafe stacks.
8602 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8606 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8608 *) New configuration variant "sco5-gcc".
8610 *) Updated some demos.
8611 [Sean O Riordain, Wade Scholine]
8613 *) Add missing BIO_free at exit of pkcs12 application.
8616 *) Fix memory leak in conf.c.
8619 *) Updates for Win32 to assembler version of MD5.
8622 *) Set #! path to perl in apps/der_chop to where we found it
8623 instead of using a fixed path.
8626 *) SHA library changes for irix64-mips4-cc.
8629 *) Improvements for VMS support.
8633 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8635 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8636 This also avoids the problems with SC4.2 and unpatched SC5.
8637 [Andy Polyakov <appro@fy.chalmers.se>]
8639 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8640 These are required because of the typesafe stack would otherwise break
8641 existing code. If old code used a structure member which used to be STACK
8642 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8643 sk_num or sk_value it would produce an error because the num, data members
8644 are not present in STACK_OF. Now it just produces a warning. sk_set
8645 replaces the old method of assigning a value to sk_value
8646 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8647 that does this will no longer work (and should use sk_set instead) but
8648 this could be regarded as a "questionable" behaviour anyway.
8651 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8652 correctly handle encrypted S/MIME data.
8655 *) Change type of various DES function arguments from des_cblock
8656 (which means, in function argument declarations, pointer to char)
8657 to des_cblock * (meaning pointer to array with 8 char elements),
8658 which allows the compiler to do more typechecking; it was like
8659 that back in SSLeay, but with lots of ugly casts.
8661 Introduce new type const_des_cblock.
8664 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8665 problems: find RecipientInfo structure that matches recipient certificate
8666 and initialise the ASN1 structures properly based on passed cipher.
8669 *) Belatedly make the BN tests actually check the results.
8672 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8673 to and from BNs: it was completely broken. New compilation option
8674 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8675 key elements as negative integers.
8678 *) Reorganize and speed up MD5.
8679 [Andy Polyakov <appro@fy.chalmers.se>]
8682 [Richard Levitte <richard@levitte.org>]
8684 *) New option -out to asn1parse to allow the parsed structure to be
8685 output to a file. This is most useful when combined with the -strparse
8686 option to examine the output of things like OCTET STRINGS.
8689 *) Make SSL library a little more fool-proof by not requiring any longer
8690 that SSL_set_{accept,connect}_state be called before
8691 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8692 in many applications because usually everything *appeared* to work as
8693 intended anyway -- now it really works as intended).
8696 *) Move openssl.cnf out of lib/.
8699 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8700 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8701 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8702 [Ralf S. Engelschall]
8704 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8705 handle PKCS#7 enveloped data properly.
8706 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8708 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8709 copying pointers. The cert_st handling is changed by this in
8710 various ways (and thus what used to be known as ctx->default_cert
8711 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8712 any longer when s->cert does not give us what we need).
8713 ssl_cert_instantiate becomes obsolete by this change.
8714 As soon as we've got the new code right (possibly it already is?),
8715 we have solved a couple of bugs of the earlier code where s->cert
8716 was used as if it could not have been shared with other SSL structures.
8718 Note that using the SSL API in certain dirty ways now will result
8719 in different behaviour than observed with earlier library versions:
8720 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8721 does not influence s as it used to.
8723 In order to clean up things more thoroughly, inside SSL_SESSION
8724 we don't use CERT any longer, but a new structure SESS_CERT
8725 that holds per-session data (if available); currently, this is
8726 the peer's certificate chain and, for clients, the server's certificate
8727 and temporary key. CERT holds only those values that can have
8728 meaningful defaults in an SSL_CTX.
8731 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8732 from the internal representation. Various PKCS#7 fixes: remove some
8733 evil casts and set the enc_dig_alg field properly based on the signing
8737 *) Allow PKCS#12 password to be set from the command line or the
8738 environment. Let 'ca' get its config file name from the environment
8739 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8743 *) Allow certificate policies extension to use an IA5STRING for the
8744 organization field. This is contrary to the PKIX definition but
8745 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8749 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8750 without disallowing inline assembler and the like for non-pedantic builds.
8753 *) Support Borland C++ builder.
8754 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8759 *) SHA-1 cleanups and performance enhancements.
8760 [Andy Polyakov <appro@fy.chalmers.se>]
8762 *) Sparc v8plus assembler for the bignum library.
8763 [Andy Polyakov <appro@fy.chalmers.se>]
8765 *) Accept any -xxx and +xxx compiler options in Configure.
8768 *) Update HPUX configuration.
8771 *) Add missing sk_<type>_unshift() function to safestack.h
8772 [Ralf S. Engelschall]
8774 *) New function SSL_CTX_use_certificate_chain_file that sets the
8775 "extra_cert"s in addition to the certificate. (This makes sense
8776 only for "PEM" format files, as chains as a whole are not
8780 *) Support verify_depth from the SSL API.
8781 x509_vfy.c had what can be considered an off-by-one-error:
8782 Its depth (which was not part of the external interface)
8783 was actually counting the number of certificates in a chain;
8784 now it really counts the depth.
8787 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8788 instead of X509err, which often resulted in confusing error
8789 messages since the error codes are not globally unique
8790 (e.g. an alleged error in ssl3_accept when a certificate
8791 didn't match the private key).
8793 *) New function SSL_CTX_set_session_id_context that allows to set a default
8794 value (so that you don't need SSL_set_session_id_context for each
8795 connection using the SSL_CTX).
8798 *) OAEP decoding bug fix.
8801 *) Support INSTALL_PREFIX for package builders, as proposed by
8805 *) New Configure options "threads" and "no-threads". For systems
8806 where the proper compiler options are known (currently Solaris
8807 and Linux), "threads" is the default.
8810 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8813 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8814 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8815 such as /usr/local/bin.
8818 *) "make linux-shared" to build shared libraries.
8819 [Niels Poppe <niels@netbox.org>]
8821 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8824 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8825 extension adding in x509 utility.
8828 *) Remove NOPROTO sections and error code comments.
8831 *) Partial rewrite of the DEF file generator to now parse the ANSI
8835 *) New Configure options --prefix=DIR and --openssldir=DIR.
8838 *) Complete rewrite of the error code script(s). It is all now handled
8839 by one script at the top level which handles error code gathering,
8840 header rewriting and C source file generation. It should be much better
8841 than the old method: it now uses a modified version of Ulf's parser to
8842 read the ANSI prototypes in all header files (thus the old K&R definitions
8843 aren't needed for error creation any more) and do a better job of
8844 translating function codes into names. The old 'ASN1 error code imbedded
8845 in a comment' is no longer necessary and it doesn't use .err files which
8846 have now been deleted. Also the error code call doesn't have to appear all
8847 on one line (which resulted in some large lines...).
8850 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8853 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8854 0 (which usually indicates a closed connection), but continue reading.
8857 *) Fix some race conditions.
8860 *) Add support for CRL distribution points extension. Add Certificate
8861 Policies and CRL distribution points documentation.
8864 *) Move the autogenerated header file parts to crypto/opensslconf.h.
8867 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
8868 8 of keying material. Merlin has also confirmed interop with this fix
8869 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
8870 [Merlin Hughes <merlin@baltimore.ie>]
8872 *) Fix lots of warnings.
8873 [Richard Levitte <levitte@stacken.kth.se>]
8875 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
8876 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
8877 [Richard Levitte <levitte@stacken.kth.se>]
8879 *) Fix problems with sizeof(long) == 8.
8880 [Andy Polyakov <appro@fy.chalmers.se>]
8882 *) Change functions to ANSI C.
8885 *) Fix typos in error codes.
8886 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
8888 *) Remove defunct assembler files from Configure.
8891 *) SPARC v8 assembler BIGNUM implementation.
8892 [Andy Polyakov <appro@fy.chalmers.se>]
8894 *) Support for Certificate Policies extension: both print and set.
8895 Various additions to support the r2i method this uses.
8898 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
8899 return a const string when you are expecting an allocated buffer.
8902 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
8903 types DirectoryString and DisplayText.
8906 *) Add code to allow r2i extensions to access the configuration database,
8907 add an LHASH database driver and add several ctx helper functions.
8910 *) Fix an evil bug in bn_expand2() which caused various BN functions to
8911 fail when they extended the size of a BIGNUM.
8914 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
8915 support typesafe stack.
8918 *) Fix typo in SSL_[gs]et_options().
8919 [Nils Frostberg <nils@medcom.se>]
8921 *) Delete various functions and files that belonged to the (now obsolete)
8922 old X509V3 handling code.
8925 *) New Configure option "rsaref".
8928 *) Don't auto-generate pem.h.
8931 *) Introduce type-safe ASN.1 SETs.
8934 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
8935 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
8937 *) Introduce type-safe STACKs. This will almost certainly break lots of code
8938 that links with OpenSSL (well at least cause lots of warnings), but fear
8939 not: the conversion is trivial, and it eliminates loads of evil casts. A
8940 few STACKed things have been converted already. Feel free to convert more.
8941 In the fullness of time, I'll do away with the STACK type altogether.
8944 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
8945 specified in <certfile> by updating the entry in the index.txt file.
8946 This way one no longer has to edit the index.txt file manually for
8947 revoking a certificate. The -revoke option does the gory details now.
8948 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
8950 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
8951 `-text' option at all and this way the `-noout -text' combination was
8952 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
8953 [Ralf S. Engelschall]
8955 *) Make sure a corresponding plain text error message exists for the
8956 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
8957 verify callback function determined that a certificate was revoked.
8958 [Ralf S. Engelschall]
8960 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
8961 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
8962 all available cipers including rc5, which was forgotten until now.
8963 In order to let the testing shell script know which algorithms
8964 are available, a new (up to now undocumented) command
8965 "openssl list-cipher-commands" is used.
8968 *) Bugfix: s_client occasionally would sleep in select() when
8969 it should have checked SSL_pending() first.
8972 *) New functions DSA_do_sign and DSA_do_verify to provide access to
8973 the raw DSA values prior to ASN.1 encoding.
8976 *) Tweaks to Configure
8977 [Niels Poppe <niels@netbox.org>]
8979 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
8983 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
8986 *) New config option to avoid instructions that are illegal on the 80386.
8987 The default code is faster, but requires at least a 486.
8990 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
8991 SSL2_SERVER_VERSION (not used at all) macros, which are now the
8992 same as SSL2_VERSION anyway.
8995 *) New "-showcerts" option for s_client.
8998 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
8999 application. Various cleanups and fixes.
9002 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
9003 modify error routines to work internally. Add error codes and PBE init
9004 to library startup routines.
9007 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
9008 packing functions to asn1 and evp. Changed function names and error
9009 codes along the way.
9012 *) PKCS12 integration: and so it begins... First of several patches to
9013 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
9014 objects to objects.h
9017 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
9018 and display support for Thawte strong extranet extension.
9021 *) Add LinuxPPC support.
9022 [Jeff Dubrule <igor@pobox.org>]
9024 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
9025 bn_div_words in alpha.s.
9026 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
9028 *) Make sure the RSA OAEP test is skipped under -DRSAref because
9029 OAEP isn't supported when OpenSSL is built with RSAref.
9030 [Ulf Moeller <ulf@fitug.de>]
9032 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
9033 so they no longer are missing under -DNOPROTO.
9034 [Soren S. Jorvang <soren@t.dk>]
9037 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
9039 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
9040 doesn't work when the session is reused. Coming soon!
9043 *) Fix a security hole, that allows sessions to be reused in the wrong
9044 context thus bypassing client cert protection! All software that uses
9045 client certs and session caches in multiple contexts NEEDS PATCHING to
9046 allow session reuse! A fuller solution is in the works.
9047 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
9049 *) Some more source tree cleanups (removed obsolete files
9050 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
9051 permission on "config" script to be executable) and a fix for the INSTALL
9053 [Ulf Moeller <ulf@fitug.de>]
9055 *) Remove some legacy and erroneous uses of malloc, free instead of
9057 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
9059 *) Make rsa_oaep_test return non-zero on error.
9060 [Ulf Moeller <ulf@fitug.de>]
9062 *) Add support for native Solaris shared libraries. Configure
9063 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
9064 if someone would make that last step automatic.
9065 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
9067 *) ctx_size was not built with the right compiler during "make links". Fixed.
9070 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
9071 except NULL ciphers". This means the default cipher list will no longer
9072 enable NULL ciphers. They need to be specifically enabled e.g. with
9073 the string "DEFAULT:eNULL".
9076 *) Fix to RSA private encryption routines: if p < q then it would
9077 occasionally produce an invalid result. This will only happen with
9078 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
9081 *) Be less restrictive and allow also `perl util/perlpath.pl
9082 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
9083 because this way one can also use an interpreter named `perl5' (which is
9084 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
9085 installed as `perl').
9086 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9088 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
9089 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9091 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
9092 advapi32.lib to Win32 build and change the pem test comparision
9093 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
9094 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
9095 and crypto/des/ede_cbcm_enc.c.
9098 *) DES quad checksum was broken on big-endian architectures. Fixed.
9101 *) Comment out two functions in bio.h that aren't implemented. Fix up the
9102 Win32 test batch file so it (might) work again. The Win32 test batch file
9103 is horrible: I feel ill....
9106 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
9107 in e_os.h. Audit of header files to check ANSI and non ANSI
9108 sections: 10 functions were absent from non ANSI section and not exported
9109 from Windows DLLs. Fixed up libeay.num for new functions.
9112 *) Make `openssl version' output lines consistent.
9113 [Ralf S. Engelschall]
9115 *) Fix Win32 symbol export lists for BIO functions: Added
9116 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9117 to ms/libeay{16,32}.def.
9118 [Ralf S. Engelschall]
9120 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9121 fine under Unix and passes some trivial tests I've now added. But the
9122 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9123 added to make sure no one expects that this stuff really works in the
9124 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9125 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9127 [Ralf S. Engelschall]
9129 *) Fix the generation of two part addresses in perl.
9130 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9132 *) Add config entry for Linux on MIPS.
9133 [John Tobey <jtobey@channel1.com>]
9135 *) Make links whenever Configure is run, unless we are on Windoze.
9138 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9139 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9143 *) Add a useful kludge to allow package maintainers to specify compiler and
9144 other platforms details on the command line without having to patch the
9145 Configure script everytime: One now can use ``perl Configure
9146 <id>:<details>'', i.e. platform ids are allowed to have details appended
9147 to them (seperated by colons). This is treated as there would be a static
9148 pre-configured entry in Configure's %table under key <id> with value
9149 <details> and ``perl Configure <id>'' is called. So, when you want to
9150 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9151 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9152 now, which overrides the FreeBSD-elf entry on-the-fly.
9153 [Ralf S. Engelschall]
9155 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9158 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9159 on the `perl Configure ...' command line. This way one can compile
9160 OpenSSL libraries with Position Independent Code (PIC) which is needed
9161 for linking it into DSOs.
9162 [Ralf S. Engelschall]
9164 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9168 *) Cleaned up the LICENSE document: The official contact for any license
9169 questions now is the OpenSSL core team under openssl-core@openssl.org.
9170 And add a paragraph about the dual-license situation to make sure people
9171 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9172 to the OpenSSL toolkit.
9173 [Ralf S. Engelschall]
9175 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9176 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9177 Additonally cleaned up the `make links' target: Remove unnecessary
9178 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9179 to speed processing and no longer clutter the display with confusing
9180 stuff. Instead only the actually done links are displayed.
9181 [Ralf S. Engelschall]
9183 *) Permit null encryption ciphersuites, used for authentication only. It used
9184 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9185 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9189 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9190 signed attributes when verifying signatures (this would break them),
9191 the detached data encoding was wrong and public keys obtained using
9192 X509_get_pubkey() weren't freed.
9195 *) Add text documentation for the BUFFER functions. Also added a work around
9196 to a Win95 console bug. This was triggered by the password read stuff: the
9197 last character typed gets carried over to the next fread(). If you were
9198 generating a new cert request using 'req' for example then the last
9199 character of the passphrase would be CR which would then enter the first
9203 *) Added the new `Includes OpenSSL Cryptography Software' button as
9204 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9205 button and can be used by applications based on OpenSSL to show the
9206 relationship to the OpenSSL project.
9207 [Ralf S. Engelschall]
9209 *) Remove confusing variables in function signatures in files
9210 ssl/ssl_lib.c and ssl/ssl.h.
9211 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9213 *) Don't install bss_file.c under PREFIX/include/
9214 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9216 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9217 functions that return function pointers and has support for NT specific
9218 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9219 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9220 unsigned to signed types: this was killing the Win32 compile.
9223 *) Add new certificate file to stack functions,
9224 SSL_add_dir_cert_subjects_to_stack() and
9225 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9226 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9227 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9228 This means that Apache-SSL and similar packages don't have to mess around
9229 to add as many CAs as they want to the preferred list.
9232 *) Experiment with doxygen documentation. Currently only partially applied to
9234 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9235 openssl.doxy as the configuration file.
9238 *) Get rid of remaining C++-style comments which strict C compilers hate.
9239 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9241 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9242 compiled in by default: it has problems with large keys.
9245 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9246 DH private keys and/or callback functions which directly correspond to
9247 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9248 is needed for applications which have to configure certificates on a
9249 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9251 For the RSA certificate situation is makes no difference, but
9252 for the DSA certificate situation this fixes the "no shared cipher"
9253 problem where the OpenSSL cipher selection procedure failed because the
9254 temporary keys were not overtaken from the context and the API provided
9255 no way to reconfigure them.
9256 The new functions now let applications reconfigure the stuff and they
9257 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9258 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9259 non-public-API function ssl_cert_instantiate() is used as a helper
9260 function and also to reduce code redundancy inside ssl_rsa.c.
9261 [Ralf S. Engelschall]
9263 *) Move s_server -dcert and -dkey options out of the undocumented feature
9264 area because they are useful for the DSA situation and should be
9265 recognized by the users.
9266 [Ralf S. Engelschall]
9268 *) Fix the cipher decision scheme for export ciphers: the export bits are
9269 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9270 SSL_EXP_MASK. So, the original variable has to be used instead of the
9271 already masked variable.
9272 [Richard Levitte <levitte@stacken.kth.se>]
9274 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9275 [Richard Levitte <levitte@stacken.kth.se>]
9277 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9278 from `int' to `unsigned int' because it's a length and initialized by
9279 EVP_DigestFinal() which expects an `unsigned int *'.
9280 [Richard Levitte <levitte@stacken.kth.se>]
9282 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9283 script. Instead use the usual Shell->Perl transition trick.
9284 [Ralf S. Engelschall]
9286 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9287 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9288 -noout -modulus' as it's already the case for `openssl rsa -noout
9289 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9290 currently the public key is printed (a decision which was already done by
9291 `openssl dsa -modulus' in the past) which serves a similar purpose.
9292 Additionally the NO_RSA no longer completely removes the whole -modulus
9293 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9295 [Ralf S. Engelschall]
9297 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9298 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9299 [Arne Ansper <arne@ats.cyber.ee>]
9301 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9302 to be added. Now both 'req' and 'ca' can use new objects defined in the
9306 *) Add cool BIO that does syslog (or event log on NT).
9307 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9309 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9310 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9311 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9312 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9315 *) Add preliminary config info for new extension code.
9318 *) Make RSA_NO_PADDING really use no padding.
9319 [Ulf Moeller <ulf@fitug.de>]
9321 *) Generate errors when private/public key check is done.
9324 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9325 for some CRL extensions and new objects added.
9328 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9329 key usage extension and fuller support for authority key id.
9332 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9333 padding method for RSA, which is recommended for new applications in PKCS
9334 #1 v2.0 (RFC 2437, October 1998).
9335 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9336 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9337 against Bleichbacher's attack on RSA.
9338 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9341 *) Updates to the new SSL compression code
9342 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9344 *) Fix so that the version number in the master secret, when passed
9345 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9346 (because the server will not accept higher), that the version number
9347 is 0x03,0x01, not 0x03,0x00
9348 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9350 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9351 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9352 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9355 *) Support for RAW extensions where an arbitrary extension can be
9356 created by including its DER encoding. See apps/openssl.cnf for
9360 *) Make sure latest Perl versions don't interpret some generated C array
9361 code as Perl array code in the crypto/err/err_genc.pl script.
9362 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9364 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9365 not many people have the assembler. Various Win32 compilation fixes and
9366 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9370 *) Modify configure script 'Configure' to automatically create crypto/date.h
9371 file under Win32 and also build pem.h from pem.org. New script
9372 util/mkfiles.pl to create the MINFO file on environments that can't do a
9373 'make files': perl util/mkfiles.pl >MINFO should work.
9376 *) Major rework of DES function declarations, in the pursuit of correctness
9377 and purity. As a result, many evil casts evaporated, and some weirdness,
9378 too. You may find this causes warnings in your code. Zapping your evil
9379 casts will probably fix them. Mostly.
9382 *) Fix for a typo in asn1.h. Bug fix to object creation script
9383 obj_dat.pl. It considered a zero in an object definition to mean
9384 "end of object": none of the objects in objects.h have any zeros
9385 so it wasn't spotted.
9386 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9388 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9389 Masking (CBCM). In the absence of test vectors, the best I have been able
9390 to do is check that the decrypt undoes the encrypt, so far. Send me test
9391 vectors if you have them.
9394 *) Correct calculation of key length for export ciphers (too much space was
9395 allocated for null ciphers). This has not been tested!
9398 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9399 message is now correct (it understands "crypto" and "ssl" on its
9400 command line). There is also now an "update" option. This will update
9401 the util/ssleay.num and util/libeay.num files with any new functions.
9403 perl util/mkdef.pl crypto ssl update
9404 it will update them.
9407 *) Overhauled the Perl interface (perl/*):
9408 - ported BN stuff to OpenSSL's different BN library
9409 - made the perl/ source tree CVS-aware
9410 - renamed the package from SSLeay to OpenSSL (the files still contain
9411 their history because I've copied them in the repository)
9412 - removed obsolete files (the test scripts will be replaced
9413 by better Test::Harness variants in the future)
9414 [Ralf S. Engelschall]
9416 *) First cut for a very conservative source tree cleanup:
9417 1. merge various obsolete readme texts into doc/ssleay.txt
9418 where we collect the old documents and readme texts.
9419 2. remove the first part of files where I'm already sure that we no
9420 longer need them because of three reasons: either they are just temporary
9421 files which were left by Eric or they are preserved original files where
9422 I've verified that the diff is also available in the CVS via "cvs diff
9423 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9424 the crypto/md/ stuff).
9425 [Ralf S. Engelschall]
9427 *) More extension code. Incomplete support for subject and issuer alt
9428 name, issuer and authority key id. Change the i2v function parameters
9429 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9430 what that's for :-) Fix to ASN1 macro which messed up
9431 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9434 *) Preliminary support for ENUMERATED type. This is largely copied from the
9438 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9439 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9441 *) Make sure `make rehash' target really finds the `openssl' program.
9442 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9444 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9445 like to hear about it if this slows down other processors.
9448 *) Add CygWin32 platform information to Configure script.
9449 [Alan Batie <batie@aahz.jf.intel.com>]
9451 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9452 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9454 *) New program nseq to manipulate netscape certificate sequences
9457 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9461 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9462 but the BN code had some problems that would cause failures when
9463 doing certificate verification and some other functions.
9464 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9466 *) Add ASN1 and PEM code to support netscape certificate sequences.
9469 *) Add ASN1 and PEM code to support netscape certificate sequences.
9472 *) Add several PKIX and private extended key usage OIDs.
9475 *) Modify the 'ca' program to handle the new extension code. Modify
9476 openssl.cnf for new extension format, add comments.
9479 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9480 and add a sample to openssl.cnf so req -x509 now adds appropriate
9484 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9485 error code, add initial support to X509_print() and x509 application.
9488 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9489 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9490 stuff is currently isolated and isn't even compiled yet.
9493 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9494 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9495 Removed the versions check from X509 routines when loading extensions:
9496 this allows certain broken certificates that don't set the version
9497 properly to be processed.
9500 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9501 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9502 can still be regenerated with "make depend".
9505 *) Spelling mistake in C version of CAST-128.
9506 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9508 *) Changes to the error generation code. The perl script err-code.pl
9509 now reads in the old error codes and retains the old numbers, only
9510 adding new ones if necessary. It also only changes the .err files if new
9511 codes are added. The makefiles have been modified to only insert errors
9512 when needed (to avoid needlessly modifying header files). This is done
9513 by only inserting errors if the .err file is newer than the auto generated
9514 C file. To rebuild all the error codes from scratch (the old behaviour)
9515 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9516 or delete all the .err files.
9519 *) CAST-128 was incorrectly implemented for short keys. The C version has
9520 been fixed, but is untested. The assembler versions are also fixed, but
9521 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9522 to regenerate it if needed.
9523 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9524 Hagino <itojun@kame.net>]
9526 *) File was opened incorrectly in randfile.c.
9527 [Ulf Möller <ulf@fitug.de>]
9529 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9530 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9531 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9532 al: it's just almost always a UTCTime. Note this patch adds new error
9533 codes so do a "make errors" if there are problems.
9536 *) Correct Linux 1 recognition in config.
9537 [Ulf Möller <ulf@fitug.de>]
9539 *) Remove pointless MD5 hash when using DSA keys in ca.
9540 [Anonymous <nobody@replay.com>]
9542 *) Generate an error if given an empty string as a cert directory. Also
9543 generate an error if handed NULL (previously returned 0 to indicate an
9544 error, but didn't set one).
9545 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9547 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9550 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9551 parameters. This was causing a warning which killed off the Win32 compile.
9554 *) Remove C++ style comments from crypto/bn/bn_local.h.
9555 [Neil Costigan <neil.costigan@celocom.com>]
9557 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9558 based on a text string, looking up short and long names and finally
9559 "dot" format. The "dot" format stuff didn't work. Added new function
9560 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9561 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9562 OID is not part of the table.
9565 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9566 X509_LOOKUP_by_alias().
9569 *) Sort openssl functions by name.
9572 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9573 encryption from sample DSA keys (in case anyone is interested the password
9577 *) Make _all_ *_free functions accept a NULL pointer.
9578 [Frans Heymans <fheymans@isaserver.be>]
9580 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9582 [Anonymous <nobody@replay.com>]
9584 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9585 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9587 *) Don't blow it for numeric -newkey arguments to apps/req.
9588 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9590 *) Temp key "for export" tests were wrong in s3_srvr.c.
9591 [Anonymous <nobody@replay.com>]
9593 *) Add prototype for temp key callback functions
9594 SSL_CTX_set_tmp_{rsa,dh}_callback().
9597 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9598 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9601 *) X509_name_add_entry() freed the wrong thing after an error.
9602 [Arne Ansper <arne@ats.cyber.ee>]
9604 *) rsa_eay.c would attempt to free a NULL context.
9605 [Arne Ansper <arne@ats.cyber.ee>]
9607 *) BIO_s_socket() had a broken should_retry() on Windoze.
9608 [Arne Ansper <arne@ats.cyber.ee>]
9610 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9611 [Arne Ansper <arne@ats.cyber.ee>]
9613 *) Make sure the already existing X509_STORE->depth variable is initialized
9614 in X509_STORE_new(), but document the fact that this variable is still
9615 unused in the certificate verification process.
9616 [Ralf S. Engelschall]
9618 *) Fix the various library and apps files to free up pkeys obtained from
9619 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9622 *) Fix reference counting in X509_PUBKEY_get(). This makes
9623 demos/maurice/example2.c work, amongst others, probably.
9624 [Steve Henson and Ben Laurie]
9626 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9627 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9628 are no longer created. This way we have a single and consistent command
9629 line interface `openssl <command>', similar to `cvs <command>'.
9630 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9632 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9633 BIT STRING wrapper always have zero unused bits.
9636 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9639 *) Make the top-level INSTALL documentation easier to understand.
9642 *) Makefiles updated to exit if an error occurs in a sub-directory
9643 make (including if user presses ^C) [Paul Sutton]
9645 *) Make Montgomery context stuff explicit in RSA data structure.
9648 *) Fix build order of pem and err to allow for generated pem.h.
9651 *) Fix renumbering bug in X509_NAME_delete_entry().
9654 *) Enhanced the err-ins.pl script so it makes the error library number
9655 global and can add a library name. This is needed for external ASN1 and
9656 other error libraries.
9659 *) Fixed sk_insert which never worked properly.
9662 *) Fix ASN1 macros so they can handle indefinite length construted
9663 EXPLICIT tags. Some non standard certificates use these: they can now
9667 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9668 into a single doc/ssleay.txt bundle. This way the information is still
9669 preserved but no longer messes up this directory. Now it's new room for
9670 the new set of documenation files.
9671 [Ralf S. Engelschall]
9673 *) SETs were incorrectly DER encoded. This was a major pain, because they
9674 shared code with SEQUENCEs, which aren't coded the same. This means that
9675 almost everything to do with SETs or SEQUENCEs has either changed name or
9676 number of arguments.
9677 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9679 *) Fix test data to work with the above.
9682 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9683 was already fixed by Eric for 0.9.1 it seems.
9684 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9686 *) Autodetect FreeBSD3.
9689 *) Fix various bugs in Configure. This affects the following platforms:
9693 unixware-2.0-pentium
9697 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9698 before they are needed.
9701 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9705 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9707 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9708 changed SSLeay to OpenSSL in version strings.
9709 [Ralf S. Engelschall]
9711 *) Some fixups to the top-level documents.
9714 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9715 because the symlink to include/ was missing.
9716 [Ralf S. Engelschall]
9718 *) Incorporated the popular no-RSA/DSA-only patches
9719 which allow to compile a RSA-free SSLeay.
9720 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9722 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9723 when "ssleay" is still not found.
9724 [Ralf S. Engelschall]
9726 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9727 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9729 *) Updated the README file.
9730 [Ralf S. Engelschall]
9732 *) Added various .cvsignore files in the CVS repository subdirs
9733 to make a "cvs update" really silent.
9734 [Ralf S. Engelschall]
9736 *) Recompiled the error-definition header files and added
9737 missing symbols to the Win32 linker tables.
9738 [Ralf S. Engelschall]
9740 *) Cleaned up the top-level documents;
9741 o new files: CHANGES and LICENSE
9742 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9743 o merged COPYRIGHT into LICENSE
9744 o removed obsolete TODO file
9745 o renamed MICROSOFT to INSTALL.W32
9746 [Ralf S. Engelschall]
9748 *) Removed dummy files from the 0.9.1b source tree:
9749 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9750 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9751 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9752 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9753 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9754 [Ralf S. Engelschall]
9756 *) Added various platform portability fixes.
9759 *) The Genesis of the OpenSSL rpject:
9760 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9761 Young and Tim J. Hudson created while they were working for C2Net until
9763 [The OpenSSL Project]
9766 Changes between 0.9.0b and 0.9.1b [not released]
9768 *) Updated a few CA certificates under certs/
9771 *) Changed some BIGNUM api stuff.
9774 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9775 DGUX x86, Linux Alpha, etc.
9778 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9779 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9783 *) Add -strparse option to asn1pars program which parses nested
9785 [Dr Stephen Henson <shenson@bigfoot.com>]
9787 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9790 *) DSA fix for "ca" program.
9793 *) Added "-genkey" option to "dsaparam" program.
9796 *) Added RIPE MD160 (rmd160) message digest.
9799 *) Added -a (all) option to "ssleay version" command.
9802 *) Added PLATFORM define which is the id given to Configure.
9805 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9808 *) Extended the ASN.1 parser routines.
9811 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9814 *) Added a BN_CTX to the BN library.
9817 *) Fixed the weak key values in DES library
9820 *) Changed API in EVP library for cipher aliases.
9823 *) Added support for RC2/64bit cipher.
9826 *) Converted the lhash library to the crypto/mem.c functions.
9829 *) Added more recognized ASN.1 object ids.
9832 *) Added more RSA padding checks for SSL/TLS.
9835 *) Added BIO proxy/filter functionality.
9838 *) Added extra_certs to SSL_CTX which can be used
9839 send extra CA certificates to the client in the CA cert chain sending
9840 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9843 *) Now Fortezza is denied in the authentication phase because
9844 this is key exchange mechanism is not supported by SSLeay at all.
9847 *) Additional PKCS1 checks.
9850 *) Support the string "TLSv1" for all TLS v1 ciphers.
9853 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9854 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
9857 *) Fixed a few memory leaks.
9860 *) Fixed various code and comment typos.
9863 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
9864 bytes sent in the client random.
9865 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob