5 Changes between 1.0.1 and 1.1.0 [xx XXX xxxx]
7 *) Add DH parameters from RFC5114 including test data to dhtest.
10 *) Update fips_test_suite to support multiple command line options. New
11 test to induce all self test errors in sequence and check expected
15 *) Add FIPS_{rsa,dsa,ecdsa}_{sign,verify} functions which digest and
16 sign or verify all in one operation.
19 *) Add fips_algvs: a multicall fips utility incorporaing all the algorithm
20 test programs and fips_test_suite. Includes functionality to parse
21 the minimal script output of fipsalgest.pl directly.
24 *) Add authorisation parameter to FIPS_module_mode_set().
27 *) Add FIPS selftest for ECDH algorithm using P-224 and B-233 curves.
30 *) Use separate DRBG fields for internal and external flags. New function
31 FIPS_drbg_health_check() to perform on demand health checking. Add
32 generation tests to fips_test_suite with reduced health check interval to
33 demonstrate periodic health checking. Add "nodh" option to
34 fips_test_suite to skip very slow DH test.
37 *) New function FIPS_get_cipherbynid() to lookup FIPS supported ciphers
41 *) More extensive health check for DRBG checking many more failure modes.
42 New function FIPS_selftest_drbg_all() to handle every possible DRBG
43 combination: call this in fips_test_suite.
46 *) Add support for Dual EC DRBG from SP800-90. Update DRBG algorithm test
47 and POST to handle Dual EC cases.
50 *) Add support for canonical generation of DSA parameter 'g'. See
53 *) Add support for HMAC DRBG from SP800-90. Update DRBG algorithm test and
54 POST to handle HMAC cases.
57 *) Add functions FIPS_module_version() and FIPS_module_version_text()
58 to return numberical and string versions of the FIPS module number.
61 *) Rename FIPS_mode_set and FIPS_mode to FIPS_module_mode_set and
62 FIPS_module_mode. FIPS_mode and FIPS_mode_set will be implmeneted
63 outside the validated module in the FIPS capable OpenSSL.
66 *) Minor change to DRBG entropy callback semantics. In some cases
67 there is no mutiple of the block length between min_len and
68 max_len. Allow the callback to return more than max_len bytes
69 of entropy but discard any extra: it is the callback's responsibility
70 to ensure that the extra data discarded does not impact the
71 requested amount of entropy.
74 *) Add PRNG security strength checks to RSA, DSA and ECDSA using
75 information in FIPS186-3, SP800-57 and SP800-131A.
78 *) CCM support via EVP. Interface is very similar to GCM case except we
79 must supply all data in one chunk (i.e. no update, final) and the
80 message length must be supplied if AAD is used. Add algorithm test
84 *) Initial version of POST overhaul. Add POST callback to allow the status
85 of POST to be monitored and/or failures induced. Modify fips_test_suite
86 to use callback. Always run all selftests even if one fails.
89 *) XTS support including algorithm test driver in the fips_gcmtest program.
90 Note: this does increase the maximum key length from 32 to 64 bytes but
91 there should be no binary compatibility issues as existing applications
92 will never use XTS mode.
95 *) Extensive reorganisation of FIPS PRNG behaviour. Remove all dependencies
96 to OpenSSL RAND code and replace with a tiny FIPS RAND API which also
97 performs algorithm blocking for unapproved PRNG types. Also do not
98 set PRNG type in FIPS_mode_set(): leave this to the application.
99 Add default OpenSSL DRBG handling: sets up FIPS PRNG and seeds with
100 the standard OpenSSL PRNG: set additional data to a date time vector.
103 *) Rename old X9.31 PRNG functions of the form FIPS_rand* to FIPS_x931*.
104 This shouldn't present any incompatibility problems because applications
105 shouldn't be using these directly and any that are will need to rethink
106 anyway as the X9.31 PRNG is now deprecated by FIPS 140-2
109 *) Extensive self tests and health checking required by SP800-90 DRBG.
110 Remove strength parameter from FIPS_drbg_instantiate and always
111 instantiate at maximum supported strength.
114 *) Add ECDH code to fips module and fips_ecdhvs for primitives only testing.
117 *) New algorithm test program fips_dhvs to handle DH primitives only testing.
120 *) New function DH_compute_key_padded() to compute a DH key and pad with
121 leading zeroes if needed: this complies with SP800-56A et al.
124 *) Initial implementation of SP800-90 DRBGs for Hash and CTR. Not used by
125 anything, incomplete, subject to change and largely untested at present.
128 *) Modify fipscanisteronly build option to only build the necessary object
129 files by filtering FIPS_EX_OBJ through a perl script in crypto/Makefile.
132 *) Add experimental option FIPSSYMS to give all symbols in
133 fipscanister.o and FIPS or fips prefix. This will avoid
134 conflicts with future versions of OpenSSL. Add perl script
135 util/fipsas.pl to preprocess assembly language source files
136 and rename any affected symbols.
139 *) Add selftest checks and algorithm block of non-fips algorithms in
140 FIPS mode. Remove DES2 from selftests.
143 *) Add ECDSA code to fips module. Add tiny fips_ecdsa_check to just
144 return internal method without any ENGINE dependencies. Add new
145 tiny fips sign and verify functions.
148 *) New build option no-ec2m to disable characteristic 2 code.
151 *) New build option "fipscanisteronly". This only builds fipscanister.o
152 and (currently) associated fips utilities. Uses the file Makefile.fips
153 instead of Makefile.org as the prototype.
156 *) Add some FIPS mode restrictions to GCM. Add internal IV generator.
157 Update fips_gcmtest to use IV generator.
160 *) Initial, experimental EVP support for AES-GCM. AAD can be input by
161 setting output buffer to NULL. The *Final function must be
162 called although it will not retrieve any additional data. The tag
163 can be set or retrieved with a ctrl. The IV length is by default 12
164 bytes (96 bits) but can be set to an alternative value. If the IV
165 length exceeds the maximum IV length (currently 16 bytes) it cannot be
169 *) New flag in ciphers: EVP_CIPH_FLAG_CUSTOM_CIPHER. This means the
170 underlying do_cipher function handles all cipher semantics itself
171 including padding and finalisation. This is useful if (for example)
172 an ENGINE cipher handles block padding itself. The behaviour of
173 do_cipher is subtly changed if this flag is set: the return value
174 is the number of characters written to the output buffer (zero is
175 no longer an error code) or a negative error code. Also if the
176 input buffer is NULL and length 0 finalisation should be performed.
179 *) If a candidate issuer certificate is already part of the constructed
180 path ignore it: new debug notification X509_V_ERR_PATH_LOOP for this case.
183 *) Improve forward-security support: add functions
185 void SSL_CTX_set_not_resumable_session_callback(SSL_CTX *ctx, int (*cb)(SSL *ssl, int is_forward_secure))
186 void SSL_set_not_resumable_session_callback(SSL *ssl, int (*cb)(SSL *ssl, int is_forward_secure))
188 for use by SSL/TLS servers; the callback function will be called whenever a
189 new session is created, and gets to decide whether the session may be
190 cached to make it resumable (return 0) or not (return 1). (As by the
191 SSL/TLS protocol specifications, the session_id sent by the server will be
192 empty to indicate that the session is not resumable; also, the server will
193 not generate RFC 4507 (RFC 5077) session tickets.)
195 A simple reasonable callback implementation is to return is_forward_secure.
196 This parameter will be set to 1 or 0 depending on the ciphersuite selected
197 by the SSL/TLS server library, indicating whether it can provide forward
199 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
201 *) Add TLS key material exporter from RFC 5705.
204 *) Add DTLS-SRTP negotiation from RFC 5764.
207 *) Add DTLS-SRTP negotiation from RFC 5764.
210 *) Add Next Protocol Negotiation,
211 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
212 disabled with a no-npn flag to config or Configure. Code donated
214 [Adam Langley <agl@google.com> and Ben Laurie]
216 *) New function OPENSSL_gmtime_diff to find the difference in days
217 and seconds between two tm structures. This will be used to provide
218 additional functionality for ASN1_TIME.
221 *) Add -trusted_first option which attempts to find certificates in the
222 trusted store even if an untrusted chain is also supplied.
225 *) Initial experimental support for explicitly trusted non-root CAs.
226 OpenSSL still tries to build a complete chain to a root but if an
227 intermediate CA has a trust setting included that is used. The first
228 setting is used: whether to trust or reject.
231 *) New -verify_name option in command line utilities to set verification
235 *) Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE.
236 Add CMAC pkey methods.
239 *) Experimental regnegotiation in s_server -www mode. If the client
240 browses /reneg connection is renegotiated. If /renegcert it is
241 renegotiated requesting a certificate.
244 *) Add an "external" session cache for debugging purposes to s_server. This
245 should help trace issues which normally are only apparent in deployed
246 multi-process servers.
249 *) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where
250 return value is ignored. NB. The functions RAND_add(), RAND_seed(),
251 BIO_set_cipher() and some obscure PEM functions were changed so they
252 can now return an error. The RAND changes required a change to the
253 RAND_METHOD structure.
256 *) New macro __owur for "OpenSSL Warn Unused Result". This makes use of
257 a gcc attribute to warn if the result of a function is ignored. This
258 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h
259 whose return value is often ignored.
262 Changes between 1.0.0f and 1.0.1 [xx XXX xxxx]
264 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
265 NIST-P256, NIST-P521, with constant-time single point multiplication on
266 typical inputs. Compiler support for the nonstandard type __uint128_t is
267 required to use this (present in gcc 4.4 and later, for 64-bit builds).
268 Code made available under Apache License version 2.0.
270 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
271 line to include this in your build of OpenSSL, and run "make depend" (or
272 "make update"). This enables the following EC_METHODs:
274 EC_GFp_nistp224_method()
275 EC_GFp_nistp256_method()
276 EC_GFp_nistp521_method()
278 EC_GROUP_new_by_curve_name() will automatically use these (while
279 EC_GROUP_new_curve_GFp() currently prefers the more flexible
281 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
283 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
284 all platforms. Move ssize_t definition from e_os.h to the public
285 header file e_os2.h as it now appears in public header file cms.h
288 *) New -sigopt option to the ca, req and x509 utilities. Additional
289 signature parameters can be passed using this option and in
293 *) Add RSA PSS signing function. This will generate and set the
294 appropriate AlgorithmIdentifiers for PSS based on those in the
295 corresponding EVP_MD_CTX structure. No application support yet.
298 *) Support for companion algorithm specific ASN1 signing routines.
299 New function ASN1_item_sign_ctx() signs a pre-initialised
300 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
301 the appropriate parameters.
304 *) Add new algorithm specific ASN1 verification initialisation function
305 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
306 handling will be the same no matter what EVP_PKEY_METHOD is used.
307 Add a PSS handler to support verification of PSS signatures: checked
308 against a number of sample certificates.
311 *) Add signature printing for PSS. Add PSS OIDs.
312 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
314 *) Add algorithm specific signature printing. An individual ASN1 method
315 can now print out signatures instead of the standard hex dump.
317 More complex signatures (e.g. PSS) can print out more meaningful
318 information. Include DSA version that prints out the signature
322 *) Password based recipient info support for CMS library: implementing
326 *) Split password based encryption into PBES2 and PBKDF2 functions. This
327 neatly separates the code into cipher and PBE sections and is required
328 for some algorithms that split PBES2 into separate pieces (such as
332 *) Session-handling fixes:
333 - Fix handling of connections that are resuming with a session ID,
334 but also support Session Tickets.
335 - Fix a bug that suppressed issuing of a new ticket if the client
336 presented a ticket with an expired session.
337 - Try to set the ticket lifetime hint to something reasonable.
338 - Make tickets shorter by excluding irrelevant information.
339 - On the client side, don't ignore renewed tickets.
340 [Adam Langley, Bodo Moeller (Google)]
342 *) Fix PSK session representation.
345 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
347 This work was sponsored by Intel.
350 *) Add GCM support to TLS library. Some custom code is needed to split
351 the IV between the fixed (from PRF) and explicit (from TLS record)
352 portions. This adds all GCM ciphersuites supported by RFC5288 and
353 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
354 add a special AESGCM string for GCM only.
357 *) Expand range of ctrls for AES GCM. Permit setting invocation
358 field on decrypt and retrieval of invocation field only on encrypt.
361 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
362 As required by RFC5289 these ciphersuites cannot be used if for
363 versions of TLS earlier than 1.2.
366 *) For FIPS capable OpenSSL interpret a NULL default public key method
367 as unset and return the appopriate default but do *not* set the default.
368 This means we can return the appopriate method in applications that
369 swicth between FIPS and non-FIPS modes.
372 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
373 ENGINE is used then we cannot handle that in the FIPS module so we
374 keep original code iff non-FIPS operations are allowed.
377 *) Add -attime option to openssl verify.
378 [Peter Eckersley <pde@eff.org> and Ben Laurie]
380 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
383 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
384 FIPS EC methods unconditionally for now.
387 *) New build option no-ec2m to disable characteristic 2 code.
390 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
391 all cases can be covered as some introduce binary incompatibilities.
394 *) Redirect RSA operations to FIPS module including keygen,
395 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
398 *) Add similar low level API blocking to ciphers.
401 *) Low level digest APIs are not approved in FIPS mode: any attempt
402 to use these will cause a fatal error. Applications that *really* want
403 to use them can use the private_* version instead.
406 *) Redirect cipher operations to FIPS module for FIPS builds.
409 *) Redirect digest operations to FIPS module for FIPS builds.
412 *) Update build system to add "fips" flag which will link in fipscanister.o
413 for static and shared library builds embedding a signature if needed.
416 *) Output TLS supported curves in preference order instead of numerical
417 order. This is currently hardcoded for the highest order curves first.
418 This should be configurable so applications can judge speed vs strength.
421 *) Add TLS v1.2 server support for client authentication.
424 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
428 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
429 FIPS modules versions.
432 *) Add TLS v1.2 client side support for client authentication. Keep cache
433 of handshake records longer as we don't know the hash algorithm to use
434 until after the certificate request message is received.
437 *) Initial TLS v1.2 client support. Add a default signature algorithms
438 extension including all the algorithms we support. Parse new signature
439 format in client key exchange. Relax some ECC signing restrictions for
440 TLS v1.2 as indicated in RFC5246.
443 *) Add server support for TLS v1.2 signature algorithms extension. Switch
444 to new signature format when needed using client digest preference.
445 All server ciphersuites should now work correctly in TLS v1.2. No client
446 support yet and no support for client certificates.
449 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
450 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
451 ciphersuites. At present only RSA key exchange ciphersuites work with
452 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
453 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
454 and version checking.
457 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
458 with this defined it will not be affected by any changes to ssl internal
459 structures. Add several utility functions to allow openssl application
460 to work with OPENSSL_NO_SSL_INTERN defined.
464 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
466 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
469 *) Permit abbreviated handshakes when renegotiating using the function
470 SSL_renegotiate_abbreviated().
471 [Robin Seggelmann <seggelmann@fh-muenster.de>]
473 *) Add call to ENGINE_register_all_complete() to
474 ENGINE_load_builtin_engines(), so some implementations get used
475 automatically instead of needing explicit application support.
478 *) Add support for TLS key exporter as described in RFC5705.
479 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
481 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
482 a few changes are required:
484 Add SSL_OP_NO_TLSv1_1 flag.
486 Update version checking logic to handle version 1.1.
487 Add explicit IV handling (ported from DTLS code).
488 Add command line options to s_client/s_server.
491 Changes between 1.0.0e and 1.0.0f [xx XXX xxxx]
493 *) Fix the BIO_f_buffer() implementation (which was mixing different
494 interpretations of the '..._len' fields).
495 [Adam Langley (Google)]
497 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
498 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
499 threads won't reuse the same blinding coefficients.
501 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
502 lock to call BN_BLINDING_invert_ex, and avoids one use of
503 BN_BLINDING_update for each BN_BLINDING structure (previously,
504 the last update always remained unused).
505 [Emilia Käsper (Google)]
507 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
508 [Bob Buckholz (Google)]
510 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
512 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
513 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
514 [Kaspar Brand <ossl@velox.ch>]
516 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
517 for multi-threaded use of ECDH. (CVE-2011-3210)
518 [Adam Langley (Google)]
520 *) Fix x509_name_ex_d2i memory leak on bad inputs.
523 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
524 signature public key algorithm by using OID xref utilities instead.
525 Before this you could only use some ECC ciphersuites with SHA1 only.
528 *) Add protection against ECDSA timing attacks as mentioned in the paper
529 by Billy Bob Brumley and Nicola Tuveri, see:
531 http://eprint.iacr.org/2011/232.pdf
533 [Billy Bob Brumley and Nicola Tuveri]
535 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
537 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
538 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
540 *) Fix bug in string printing code: if *any* escaping is enabled we must
541 escape the escape character (backslash) or the resulting string is
545 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
547 *) Disable code workaround for ancient and obsolete Netscape browsers
548 and servers: an attacker can use it in a ciphersuite downgrade attack.
549 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
552 *) Fixed J-PAKE implementation error, originally discovered by
553 Sebastien Martini, further info and confirmation from Stefan
554 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
557 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
559 *) Fix extension code to avoid race conditions which can result in a buffer
560 overrun vulnerability: resumed sessions must not be modified as they can
561 be shared by multiple threads. CVE-2010-3864
564 *) Fix WIN32 build system to correctly link an ENGINE directory into
568 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
570 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
572 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
574 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
576 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
577 context. The operation can be customised via the ctrl mechanism in
578 case ENGINEs want to include additional functionality.
581 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
584 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
585 output hashes compatible with older versions of OpenSSL.
586 [Willy Weisz <weisz@vcpc.univie.ac.at>]
588 *) Fix compression algorithm handling: if resuming a session use the
589 compression algorithm of the resumed session instead of determining
590 it from client hello again. Don't allow server to change algorithm.
593 *) Add load_crls() function to apps tidying load_certs() too. Add option
594 to verify utility to allow additional CRLs to be included.
597 *) Update OCSP request code to permit adding custom headers to the request:
598 some responders need this.
601 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
603 [Julia Lawall <julia@diku.dk>]
605 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
606 needlessly dereferenced structures, used obsolete functions and
607 didn't handle all updated verify codes correctly.
610 *) Disable MD2 in the default configuration.
613 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
614 indicate the initial BIO being pushed or popped. This makes it possible
615 to determine whether the BIO is the one explicitly called or as a result
616 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
617 it handles reference counts correctly and doesn't zero out the I/O bio
618 when it is not being explicitly popped. WARNING: applications which
619 included workarounds for the old buggy behaviour will need to be modified
620 or they could free up already freed BIOs.
623 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
624 renaming to all platforms (within the 0.9.8 branch, this was
625 done conditionally on Netware platforms to avoid a name clash).
626 [Guenter <lists@gknw.net>]
628 *) Add ECDHE and PSK support to DTLS.
629 [Michael Tuexen <tuexen@fh-muenster.de>]
631 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
635 *) Add "missing" function EVP_MD_flags() (without this the only way to
636 retrieve a digest flags is by accessing the structure directly. Update
637 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
638 or cipher is registered as in the "from" argument. Print out all
639 registered digests in the dgst usage message instead of manually
640 attempting to work them out.
643 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
644 this allows the use of compression and extensions. Change default cipher
645 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
646 by default unless an application cipher string requests it.
649 *) Alter match criteria in PKCS12_parse(). It used to try to use local
650 key ids to find matching certificates and keys but some PKCS#12 files
651 don't follow the (somewhat unwritten) rules and this strategy fails.
652 Now just gather all certificates together and the first private key
653 then look for the first certificate that matches the key.
656 *) Support use of registered digest and cipher names for dgst and cipher
657 commands instead of having to add each one as a special case. So now
664 openssl dgst -sha256 foo
666 and this works for ENGINE based algorithms too.
670 *) Update Gost ENGINE to support parameter files.
671 [Victor B. Wagner <vitus@cryptocom.ru>]
673 *) Support GeneralizedTime in ca utility.
674 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
676 *) Enhance the hash format used for certificate directory links. The new
677 form uses the canonical encoding (meaning equivalent names will work
678 even if they aren't identical) and uses SHA1 instead of MD5. This form
679 is incompatible with the older format and as a result c_rehash should
680 be used to rebuild symbolic links.
683 *) Make PKCS#8 the default write format for private keys, replacing the
684 traditional format. This form is standardised, more secure and doesn't
685 include an implicit MD5 dependency.
688 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
689 committed to OpenSSL should pass this lot as a minimum.
692 *) Add session ticket override functionality for use by EAP-FAST.
693 [Jouni Malinen <j@w1.fi>]
695 *) Modify HMAC functions to return a value. Since these can be implemented
696 in an ENGINE errors can occur.
699 *) Type-checked OBJ_bsearch_ex.
702 *) Type-checked OBJ_bsearch. Also some constification necessitated
703 by type-checking. Still to come: TXT_DB, bsearch(?),
704 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
708 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
709 seconds to a tm structure directly, instead of going through OS
710 specific date routines. This avoids any issues with OS routines such
711 as the year 2038 bug. New *_adj() functions for ASN1 time structures
712 and X509_time_adj_ex() to cover the extended range. The existing
713 X509_time_adj() is still usable and will no longer have any date issues.
716 *) Delta CRL support. New use deltas option which will attempt to locate
717 and search any appropriate delta CRLs available.
719 This work was sponsored by Google.
722 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
723 code and add additional score elements. Validate alternate CRL paths
724 as part of the CRL checking and indicate a new error "CRL path validation
725 error" in this case. Applications wanting additional details can use
726 the verify callback and check the new "parent" field. If this is not
727 NULL CRL path validation is taking place. Existing applications wont
728 see this because it requires extended CRL support which is off by
731 This work was sponsored by Google.
734 *) Support for freshest CRL extension.
736 This work was sponsored by Google.
739 *) Initial indirect CRL support. Currently only supported in the CRLs
740 passed directly and not via lookup. Process certificate issuer
741 CRL entry extension and lookup CRL entries by bother issuer name
742 and serial number. Check and process CRL issuer entry in IDP extension.
744 This work was sponsored by Google.
747 *) Add support for distinct certificate and CRL paths. The CRL issuer
748 certificate is validated separately in this case. Only enabled if
749 an extended CRL support flag is set: this flag will enable additional
750 CRL functionality in future.
752 This work was sponsored by Google.
755 *) Add support for policy mappings extension.
757 This work was sponsored by Google.
760 *) Fixes to pathlength constraint, self issued certificate handling,
761 policy processing to align with RFC3280 and PKITS tests.
763 This work was sponsored by Google.
766 *) Support for name constraints certificate extension. DN, email, DNS
767 and URI types are currently supported.
769 This work was sponsored by Google.
772 *) To cater for systems that provide a pointer-based thread ID rather
773 than numeric, deprecate the current numeric thread ID mechanism and
774 replace it with a structure and associated callback type. This
775 mechanism allows a numeric "hash" to be extracted from a thread ID in
776 either case, and on platforms where pointers are larger than 'long',
777 mixing is done to help ensure the numeric 'hash' is usable even if it
778 can't be guaranteed unique. The default mechanism is to use "&errno"
779 as a pointer-based thread ID to distinguish between threads.
781 Applications that want to provide their own thread IDs should now use
782 CRYPTO_THREADID_set_callback() to register a callback that will call
783 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
785 Note that ERR_remove_state() is now deprecated, because it is tied
786 to the assumption that thread IDs are numeric. ERR_remove_state(0)
787 to free the current thread's error state should be replaced by
788 ERR_remove_thread_state(NULL).
790 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
791 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
792 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
793 application was previously providing a numeric thread callback that
794 was inappropriate for distinguishing threads, then uniqueness might
795 have been obtained with &errno that happened immediately in the
796 intermediate development versions of OpenSSL; this is no longer the
797 case, the numeric thread callback will now override the automatic use
799 [Geoff Thorpe, with help from Bodo Moeller]
801 *) Initial support for different CRL issuing certificates. This covers a
802 simple case where the self issued certificates in the chain exist and
803 the real CRL issuer is higher in the existing chain.
805 This work was sponsored by Google.
808 *) Removed effectively defunct crypto/store from the build.
811 *) Revamp of STACK to provide stronger type-checking. Still to come:
812 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
813 ASN1_STRING, CONF_VALUE.
816 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
817 RAM on SSL connections. This option can save about 34k per idle SSL.
820 *) Revamp of LHASH to provide stronger type-checking. Still to come:
821 STACK, TXT_DB, bsearch, qsort.
824 *) Initial support for Cryptographic Message Syntax (aka CMS) based
825 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
826 support for data, signedData, compressedData, digestedData and
827 encryptedData, envelopedData types included. Scripts to check against
828 RFC4134 examples draft and interop and consistency checks of many
829 content types and variants.
832 *) Add options to enc utility to support use of zlib compression BIO.
835 *) Extend mk1mf to support importing of options and assembly language
836 files from Configure script, currently only included in VC-WIN32.
837 The assembly language rules can now optionally generate the source
838 files from the associated perl scripts.
841 *) Implement remaining functionality needed to support GOST ciphersuites.
842 Interop testing has been performed using CryptoPro implementations.
843 [Victor B. Wagner <vitus@cryptocom.ru>]
845 *) s390x assembler pack.
848 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
852 *) Implement Opaque PRF Input TLS extension as specified in
853 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
854 official specification yet and no extension type assignment by
855 IANA exists, this extension (for now) will have to be explicitly
856 enabled when building OpenSSL by providing the extension number
857 to use. For example, specify an option
859 -DTLSEXT_TYPE_opaque_prf_input=0x9527
861 to the "config" or "Configure" script to enable the extension,
862 assuming extension number 0x9527 (which is a completely arbitrary
863 and unofficial assignment based on the MD5 hash of the Internet
864 Draft). Note that by doing so, you potentially lose
865 interoperability with other TLS implementations since these might
866 be using the same extension number for other purposes.
868 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
869 opaque PRF input value to use in the handshake. This will create
870 an interal copy of the length-'len' string at 'src', and will
871 return non-zero for success.
873 To get more control and flexibility, provide a callback function
876 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
877 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
881 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
884 Callback function 'cb' will be called in handshakes, and is
885 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
886 Argument 'arg' is for application purposes (the value as given to
887 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
888 be provided to the callback function). The callback function
889 has to return non-zero to report success: usually 1 to use opaque
890 PRF input just if possible, or 2 to enforce use of the opaque PRF
891 input. In the latter case, the library will abort the handshake
892 if opaque PRF input is not successfully negotiated.
894 Arguments 'peerinput' and 'len' given to the callback function
895 will always be NULL and 0 in the case of a client. A server will
896 see the client's opaque PRF input through these variables if
897 available (NULL and 0 otherwise). Note that if the server
898 provides an opaque PRF input, the length must be the same as the
899 length of the client's opaque PRF input.
901 Note that the callback function will only be called when creating
902 a new session (session resumption can resume whatever was
903 previously negotiated), and will not be called in SSL 2.0
904 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
905 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
906 for applications that need to enforce opaque PRF input.
910 *) Update ssl code to support digests other than SHA1+MD5 for handshake
913 [Victor B. Wagner <vitus@cryptocom.ru>]
915 *) Add RFC4507 support to OpenSSL. This includes the corrections in
916 RFC4507bis. The encrypted ticket format is an encrypted encoded
917 SSL_SESSION structure, that way new session features are automatically
920 If a client application caches session in an SSL_SESSION structure
921 support is transparent because tickets are now stored in the encoded
924 The SSL_CTX structure automatically generates keys for ticket
925 protection in servers so again support should be possible
926 with no application modification.
928 If a client or server wishes to disable RFC4507 support then the option
929 SSL_OP_NO_TICKET can be set.
931 Add a TLS extension debugging callback to allow the contents of any client
932 or server extensions to be examined.
934 This work was sponsored by Google.
937 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
938 OpenSSL should now compile cleanly on gcc 4.2
939 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
941 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
942 support including streaming MAC support: this is required for GOST
944 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
946 *) Add option -stream to use PKCS#7 streaming in smime utility. New
947 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
948 to output in BER and PEM format.
951 *) Experimental support for use of HMAC via EVP_PKEY interface. This
952 allows HMAC to be handled via the EVP_DigestSign*() interface. The
953 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
954 ENGINE support for HMAC keys which are unextractable. New -mac and
955 -macopt options to dgst utility.
958 *) New option -sigopt to dgst utility. Update dgst to use
959 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
960 alternative signing paramaters such as X9.31 or PSS in the dgst
964 *) Change ssl_cipher_apply_rule(), the internal function that does
965 the work each time a ciphersuite string requests enabling
966 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
967 removing ("!foo+bar") a class of ciphersuites: Now it maintains
968 the order of disabled ciphersuites such that those ciphersuites
969 that most recently went from enabled to disabled not only stay
970 in order with respect to each other, but also have higher priority
971 than other disabled ciphersuites the next time ciphersuites are
974 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
975 the same ciphersuites as with "HIGH" alone, but in a specific
976 order where the PSK ciphersuites come first (since they are the
977 most recently disabled ciphersuites when "HIGH" is parsed).
979 Also, change ssl_create_cipher_list() (using this new
980 funcionality) such that between otherwise identical
981 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
985 *) Change ssl_create_cipher_list() so that it automatically
986 arranges the ciphersuites in reasonable order before starting
987 to process the rule string. Thus, the definition for "DEFAULT"
988 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
989 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
990 This makes it much easier to arrive at a reasonable default order
991 in applications for which anonymous ciphers are OK (meaning
992 that you can't actually use DEFAULT).
993 [Bodo Moeller; suggested by Victor Duchovni]
995 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
996 processing) into multiple integers instead of setting
997 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
998 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
999 (These masks as well as the individual bit definitions are hidden
1000 away into the non-exported interface ssl/ssl_locl.h, so this
1001 change to the definition of the SSL_CIPHER structure shouldn't
1002 affect applications.) This give us more bits for each of these
1003 categories, so there is no longer a need to coagulate AES128 and
1004 AES256 into a single algorithm bit, and to coagulate Camellia128
1005 and Camellia256 into a single algorithm bit, which has led to all
1008 Thus, among other things, the kludge introduced in 0.9.7m and
1009 0.9.8e for masking out AES256 independently of AES128 or masking
1010 out Camellia256 independently of AES256 is not needed here in 0.9.9.
1012 With the change, we also introduce new ciphersuite aliases that
1013 so far were missing: "AES128", "AES256", "CAMELLIA128", and
1017 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
1018 Use the leftmost N bytes of the signature input if the input is
1019 larger than the prime q (with N being the size in bytes of q).
1022 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
1023 it yet and it is largely untested.
1026 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
1029 *) Initial incomplete changes to avoid need for function casts in OpenSSL
1030 some compilers (gcc 4.2 and later) reject their use. Safestack is
1031 reimplemented. Update ASN1 to avoid use of legacy functions.
1034 *) Win32/64 targets are linked with Winsock2.
1037 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
1038 to external functions. This can be used to increase CRL handling
1039 efficiency especially when CRLs are very large by (for example) storing
1040 the CRL revoked certificates in a database.
1043 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
1044 new CRLs added to a directory can be used. New command line option
1045 -verify_return_error to s_client and s_server. This causes real errors
1046 to be returned by the verify callback instead of carrying on no matter
1047 what. This reflects the way a "real world" verify callback would behave.
1050 *) GOST engine, supporting several GOST algorithms and public key formats.
1051 Kindly donated by Cryptocom.
1054 *) Partial support for Issuing Distribution Point CRL extension. CRLs
1055 partitioned by DP are handled but no indirect CRL or reason partitioning
1056 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
1057 selected via a scoring technique which handles IDP and AKID in CRLs.
1060 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
1061 will ultimately be used for all verify operations: this will remove the
1062 X509_STORE dependency on certificate verification and allow alternative
1063 lookup methods. X509_STORE based implementations of these two callbacks.
1066 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
1067 Modify get_crl() to find a valid (unexpired) CRL if possible.
1070 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
1071 this would be called X509_CRL_cmp() but that name is already used by
1072 a function that just compares CRL issuer names. Cache several CRL
1073 extensions in X509_CRL structure and cache CRLDP in X509.
1076 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
1077 this maps equivalent X509_NAME structures into a consistent structure.
1078 Name comparison can then be performed rapidly using memcmp().
1081 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
1085 *) Allow digests to supply their own micalg string for S/MIME type using
1086 the ctrl EVP_MD_CTRL_MICALG.
1089 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
1090 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
1091 ctrl. It can then customise the structure before and/or after signing
1095 *) New function OBJ_add_sigid() to allow application defined signature OIDs
1096 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
1097 to free up any added signature OIDs.
1100 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
1101 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
1102 digest and cipher tables. New options added to openssl utility:
1103 list-message-digest-algorithms and list-cipher-algorithms.
1106 *) Change the array representation of binary polynomials: the list
1107 of degrees of non-zero coefficients is now terminated with -1.
1108 Previously it was terminated with 0, which was also part of the
1109 value; thus, the array representation was not applicable to
1110 polynomials where t^0 has coefficient zero. This change makes
1111 the array representation useful in a more general context.
1114 *) Various modifications and fixes to SSL/TLS cipher string
1115 handling. For ECC, the code now distinguishes between fixed ECDH
1116 with RSA certificates on the one hand and with ECDSA certificates
1117 on the other hand, since these are separate ciphersuites. The
1118 unused code for Fortezza ciphersuites has been removed.
1120 For consistency with EDH, ephemeral ECDH is now called "EECDH"
1121 (not "ECDHE"). For consistency with the code for DH
1122 certificates, use of ECDH certificates is now considered ECDH
1123 authentication, not RSA or ECDSA authentication (the latter is
1124 merely the CA's signing algorithm and not actively used in the
1127 The temporary ciphersuite alias "ECCdraft" is no longer
1128 available, and ECC ciphersuites are no longer excluded from "ALL"
1129 and "DEFAULT". The following aliases now exist for RFC 4492
1130 ciphersuites, most of these by analogy with the DH case:
1132 kECDHr - ECDH cert, signed with RSA
1133 kECDHe - ECDH cert, signed with ECDSA
1134 kECDH - ECDH cert (signed with either RSA or ECDSA)
1135 kEECDH - ephemeral ECDH
1136 ECDH - ECDH cert or ephemeral ECDH
1142 AECDH - anonymous ECDH
1143 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
1147 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
1148 Use correct micalg parameters depending on digest(s) in signed message.
1151 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
1152 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
1155 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
1156 an engine to register a method. Add ENGINE lookups for methods and
1157 functional reference processing.
1160 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
1161 EVP_{Sign,Verify}* which allow an application to customise the signature
1165 *) New -resign option to smime utility. This adds one or more signers
1166 to an existing PKCS#7 signedData structure. Also -md option to use an
1167 alternative message digest algorithm for signing.
1170 *) Tidy up PKCS#7 routines and add new functions to make it easier to
1171 create PKCS7 structures containing multiple signers. Update smime
1172 application to support multiple signers.
1175 *) New -macalg option to pkcs12 utility to allow setting of an alternative
1179 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
1180 Reorganize PBE internals to lookup from a static table using NIDs,
1181 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
1182 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
1183 PRF which will be automatically used with PBES2.
1186 *) Replace the algorithm specific calls to generate keys in "req" with the
1190 *) Update PKCS#7 enveloped data routines to use new API. This is now
1191 supported by any public key method supporting the encrypt operation. A
1192 ctrl is added to allow the public key algorithm to examine or modify
1193 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
1197 *) Add a ctrl to asn1 method to allow a public key algorithm to express
1198 a default digest type to use. In most cases this will be SHA1 but some
1199 algorithms (such as GOST) need to specify an alternative digest. The
1200 return value indicates how strong the prefernce is 1 means optional and
1201 2 is mandatory (that is it is the only supported type). Modify
1202 ASN1_item_sign() to accept a NULL digest argument to indicate it should
1203 use the default md. Update openssl utilities to use the default digest
1204 type for signing if it is not explicitly indicated.
1207 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
1208 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
1209 signing method from the key type. This effectively removes the link
1210 between digests and public key types.
1213 *) Add an OID cross reference table and utility functions. Its purpose is to
1214 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1215 rsaEncryption. This will allow some of the algorithm specific hackery
1216 needed to use the correct OID to be removed.
1219 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1220 structures for PKCS7_sign(). They are now set up by the relevant public
1224 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1227 *) Add support for key derivation (agreement) in the API, DH method and
1231 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1232 public and private key formats. As a side effect these add additional
1233 command line functionality not previously available: DSA signatures can be
1234 generated and verified using pkeyutl and DH key support and generation in
1239 [Oliver Tappe <zooey@hirschkaefer.de>]
1241 *) New make target "install_html_docs" installs HTML renditions of the
1243 [Oliver Tappe <zooey@hirschkaefer.de>]
1245 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1246 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1247 support key and parameter generation and add initial key generation
1248 functionality for RSA.
1251 *) Add functions for main EVP_PKEY_method operations. The undocumented
1252 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1253 EVP_PKEY_{encrypt,decrypt}_old.
1256 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1257 key API, doesn't do much yet.
1260 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1261 public key algorithms. New option to openssl utility:
1262 "list-public-key-algorithms" to print out info.
1265 *) Implement the Supported Elliptic Curves Extension for
1266 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1269 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1270 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1273 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1274 utilities such as rsa, dsa, dsaparam etc except they process any key
1278 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1279 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1280 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1284 *) Initial support for pluggable public key ASN1.
1285 De-spaghettify the public key ASN1 handling. Move public and private
1286 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1287 algorithm specific handling to a single module within the relevant
1288 algorithm directory. Add functions to allow (near) opaque processing
1289 of public and private key structures.
1292 *) Implement the Supported Point Formats Extension for
1293 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1296 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1297 for the psk identity [hint] and the psk callback functions to the
1298 SSL_SESSION, SSL and SSL_CTX structure.
1301 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1305 SSL_CTX_use_psk_identity_hint
1306 SSL_get_psk_identity_hint
1307 SSL_get_psk_identity
1308 SSL_use_psk_identity_hint
1310 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1312 *) Add RFC 3161 compliant time stamp request creation, response generation
1313 and response verification functionality.
1314 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1316 *) Add initial support for TLS extensions, specifically for the server_name
1317 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1318 have new members for a host name. The SSL data structure has an
1319 additional member SSL_CTX *initial_ctx so that new sessions can be
1320 stored in that context to allow for session resumption, even after the
1321 SSL has been switched to a new SSL_CTX in reaction to a client's
1322 server_name extension.
1324 New functions (subject to change):
1326 SSL_get_servername()
1327 SSL_get_servername_type()
1330 New CTRL codes and macros (subject to change):
1332 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1333 - SSL_CTX_set_tlsext_servername_callback()
1334 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1335 - SSL_CTX_set_tlsext_servername_arg()
1336 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1338 openssl s_client has a new '-servername ...' option.
1340 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1341 '-key2 ...', '-servername_fatal' (subject to change). This allows
1342 testing the HostName extension for a specific single host name ('-cert'
1343 and '-key' remain fallbacks for handshakes without HostName
1344 negotiation). If the unrecogninzed_name alert has to be sent, this by
1345 default is a warning; it becomes fatal with the '-servername_fatal'
1348 [Peter Sylvester, Remy Allais, Christophe Renou]
1350 *) Whirlpool hash implementation is added.
1353 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1354 bn(64,32). Because of instruction set limitations it doesn't have
1355 any negative impact on performance. This was done mostly in order
1356 to make it possible to share assembler modules, such as bn_mul_mont
1357 implementations, between 32- and 64-bit builds without hassle.
1360 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1361 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1365 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1366 dedicated Montgomery multiplication procedure, is introduced.
1367 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1368 "64-bit" performance on certain 32-bit targets.
1371 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1372 in SSL structures. New SSL ctrl to set maximum send fragment size.
1373 Save memory by seeting the I/O buffer sizes dynamically instead of
1374 using the maximum available value.
1377 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1378 in addition to the text details.
1381 *) Very, very preliminary EXPERIMENTAL support for printing of general
1382 ASN1 structures. This currently produces rather ugly output and doesn't
1383 handle several customised structures at all.
1386 *) Integrated support for PVK file format and some related formats such
1387 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1388 these in the 'rsa' and 'dsa' utilities.
1391 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1394 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1395 place for the (very old) "NETSCAPE" format certificates which are now
1396 handled using new ASN1 code equivalents.
1399 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1400 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1401 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1404 *) Modify CRL distribution points extension code to print out previously
1405 unsupported fields. Enhance extension setting code to allow setting of
1409 *) Add print and set support for Issuing Distribution Point CRL extension.
1412 *) Change 'Configure' script to enable Camellia by default.
1415 Changes between 0.9.8r and 0.9.8s [xx XXX xxxx]
1417 *) Fix the BIO_f_buffer() implementation (which was mixing different
1418 interpretations of the '..._len' fields).
1419 [Adam Langley (Google)]
1421 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1422 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1423 threads won't reuse the same blinding coefficients.
1425 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1426 lock to call BN_BLINDING_invert_ex, and avoids one use of
1427 BN_BLINDING_update for each BN_BLINDING structure (previously,
1428 the last update always remained unused).
1429 [Emilia Käsper (Google)]
1431 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1432 for multi-threaded use of ECDH.
1433 [Adam Langley (Google)]
1435 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1438 *) Add protection against ECDSA timing attacks as mentioned in the paper
1439 by Billy Bob Brumley and Nicola Tuveri, see:
1441 http://eprint.iacr.org/2011/232.pdf
1443 [Billy Bob Brumley and Nicola Tuveri]
1445 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1447 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1448 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1450 *) Fix bug in string printing code: if *any* escaping is enabled we must
1451 escape the escape character (backslash) or the resulting string is
1455 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1457 *) Disable code workaround for ancient and obsolete Netscape browsers
1458 and servers: an attacker can use it in a ciphersuite downgrade attack.
1459 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1462 *) Fixed J-PAKE implementation error, originally discovered by
1463 Sebastien Martini, further info and confirmation from Stefan
1464 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1467 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1469 *) Fix extension code to avoid race conditions which can result in a buffer
1470 overrun vulnerability: resumed sessions must not be modified as they can
1471 be shared by multiple threads. CVE-2010-3864
1474 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1477 *) Don't reencode certificate when calculating signature: cache and use
1478 the original encoding instead. This makes signature verification of
1479 some broken encodings work correctly.
1482 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1483 is also one of the inputs.
1484 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1486 *) Don't repeatedly append PBE algorithms to table if they already exist.
1487 Sort table on each new add. This effectively makes the table read only
1488 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1492 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1494 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1497 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1498 access or freeing data twice (CVE-2010-0742)
1499 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1501 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1502 common in certificates and some applications which only call
1503 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1507 Reduce copying into .apps and .test in makevms.com
1508 Don't try to use blank CA certificate in CA.com
1509 Allow use of C files from original directories in maketests.com
1510 [Steven M. Schweda" <sms@antinode.info>]
1512 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1514 *) When rejecting SSL/TLS records due to an incorrect version number, never
1515 update s->server with a new major version number. As of
1516 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1517 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1518 the previous behavior could result in a read attempt at NULL when
1519 receiving specific incorrect SSL/TLS records once record payload
1520 protection is active. (CVE-2010-0740)
1521 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1523 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1524 could be crashed if the relevant tables were not present (e.g. chrooted).
1525 [Tomas Hoger <thoger@redhat.com>]
1527 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1529 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1530 [Martin Olsson, Neel Mehta]
1532 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1533 accommodate for stack sorting, always a write lock!).
1536 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1537 excessive delays in the RAND_poll(): over a minute. As a workaround
1538 include a time check in the inner Heap32Next loop too.
1541 *) The code that handled flushing of data in SSL/TLS originally used the
1542 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1543 the problem outlined in PR#1949. The fix suggested there however can
1544 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1545 of Apache). So instead simplify the code to flush unconditionally.
1546 This should be fine since flushing with no data to flush is a no op.
1549 *) Handle TLS versions 2.0 and later properly and correctly use the
1550 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1551 off ancient servers have a habit of sticking around for a while...
1554 *) Modify compression code so it frees up structures without using the
1555 ex_data callbacks. This works around a problem where some applications
1556 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1557 restarting) then use compression (e.g. SSL with compression) later.
1558 This results in significant per-connection memory leaks and
1559 has caused some security issues including CVE-2008-1678 and
1563 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1564 change when encrypting or decrypting.
1567 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1568 connect and renegotiate with servers which do not support RI.
1569 Until RI is more widely deployed this option is enabled by default.
1572 *) Add "missing" ssl ctrls to clear options and mode.
1575 *) If client attempts to renegotiate and doesn't support RI respond with
1576 a no_renegotiation alert as required by RFC5746. Some renegotiating
1577 TLS clients will continue a connection gracefully when they receive
1578 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1579 waiting for a server hello which it will never receive. Now we treat a
1580 received no_renegotiation alert as a fatal error. This is because
1581 applications requesting a renegotiation might well expect it to succeed
1582 and would have no code in place to handle the server denying it so the
1583 only safe thing to do is to terminate the connection.
1586 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1587 peer supports secure renegotiation and 0 otherwise. Print out peer
1588 renegotiation support in s_client/s_server.
1591 *) Replace the highly broken and deprecated SPKAC certification method with
1592 the updated NID creation version. This should correctly handle UTF8.
1595 *) Implement RFC5746. Re-enable renegotiation but require the extension
1596 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1597 turns out to be a bad idea. It has been replaced by
1598 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1599 SSL_CTX_set_options(). This is really not recommended unless you
1600 know what you are doing.
1601 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1603 *) Fixes to stateless session resumption handling. Use initial_ctx when
1604 issuing and attempting to decrypt tickets in case it has changed during
1605 servername handling. Use a non-zero length session ID when attempting
1606 stateless session resumption: this makes it possible to determine if
1607 a resumption has occurred immediately after receiving server hello
1608 (several places in OpenSSL subtly assume this) instead of later in
1612 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1613 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1614 fixes for a few places where the return code is not checked
1616 [Julia Lawall <julia@diku.dk>]
1618 *) Add --strict-warnings option to Configure script to include devteam
1619 warnings in other configurations.
1622 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1623 makes it possible to install openssl libraries in locations which
1624 have names other than "lib", for example "/usr/lib64" which some
1626 [Steve Henson, based on patch from Jeremy Utley]
1628 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1629 X690 8.9.12 and can produce some misleading textual output of OIDs.
1630 [Steve Henson, reported by Dan Kaminsky]
1632 *) Delete MD2 from algorithm tables. This follows the recommendation in
1633 several standards that it is not used in new applications due to
1634 several cryptographic weaknesses. For binary compatibility reasons
1635 the MD2 API is still compiled in by default.
1638 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1642 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1643 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1645 [Guenter <lists@gknw.net>]
1647 *) Fix the server certificate chain building code to use X509_verify_cert(),
1648 it used to have an ad-hoc builder which was unable to cope with anything
1649 other than a simple chain.
1650 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1652 *) Don't check self signed certificate signatures in X509_verify_cert()
1653 by default (a flag can override this): it just wastes time without
1654 adding any security. As a useful side effect self signed root CAs
1655 with non-FIPS digests are now usable in FIPS mode.
1658 *) In dtls1_process_out_of_seq_message() the check if the current message
1659 is already buffered was missing. For every new message was memory
1660 allocated, allowing an attacker to perform an denial of service attack
1661 with sending out of seq handshake messages until there is no memory
1662 left. Additionally every future messege was buffered, even if the
1663 sequence number made no sense and would be part of another handshake.
1664 So only messages with sequence numbers less than 10 in advance will be
1665 buffered. (CVE-2009-1378)
1666 [Robin Seggelmann, discovered by Daniel Mentz]
1668 *) Records are buffered if they arrive with a future epoch to be
1669 processed after finishing the corresponding handshake. There is
1670 currently no limitation to this buffer allowing an attacker to perform
1671 a DOS attack with sending records with future epochs until there is no
1672 memory left. This patch adds the pqueue_size() function to detemine
1673 the size of a buffer and limits the record buffer to 100 entries.
1675 [Robin Seggelmann, discovered by Daniel Mentz]
1677 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1678 parent structure is freed. (CVE-2009-1379)
1681 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1682 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1685 [Ilya O. <vrghost@gmail.com>]
1687 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1689 *) Disable renegotiation completely - this fixes a severe security
1690 problem (CVE-2009-3555) at the cost of breaking all
1691 renegotiation. Renegotiation can be re-enabled by setting
1692 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1693 run-time. This is really not recommended unless you know what
1697 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1699 *) Don't set val to NULL when freeing up structures, it is freed up by
1700 underlying code. If sizeof(void *) > sizeof(long) this can result in
1701 zeroing past the valid field. (CVE-2009-0789)
1702 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1704 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1705 checked correctly. This would allow some invalid signed attributes to
1706 appear to verify correctly. (CVE-2009-0591)
1707 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1709 *) Reject UniversalString and BMPString types with invalid lengths. This
1710 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1711 a legal length. (CVE-2009-0590)
1714 *) Set S/MIME signing as the default purpose rather than setting it
1715 unconditionally. This allows applications to override it at the store
1719 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1720 to handle some structures.
1723 *) Improve efficiency of mem_gets: don't search whole buffer each time
1725 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1727 *) New -hex option for openssl rand.
1730 *) Print out UTF8String and NumericString when parsing ASN1.
1733 *) Support NumericString type for name components.
1736 *) Allow CC in the environment to override the automatically chosen
1737 compiler. Note that nothing is done to ensure flags work with the
1741 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1743 *) Properly check EVP_VerifyFinal() and similar return values
1745 [Ben Laurie, Bodo Moeller, Google Security Team]
1747 *) Enable TLS extensions by default.
1750 *) Allow the CHIL engine to be loaded, whether the application is
1751 multithreaded or not. (This does not release the developer from the
1752 obligation to set up the dynamic locking callbacks.)
1753 [Sander Temme <sander@temme.net>]
1755 *) Use correct exit code if there is an error in dgst command.
1756 [Steve Henson; problem pointed out by Roland Dirlewanger]
1758 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1759 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1762 *) Add experimental JPAKE support, including demo authentication in
1763 s_client and s_server.
1766 *) Set the comparison function in v3_addr_canonize().
1767 [Rob Austein <sra@hactrn.net>]
1769 *) Add support for XMPP STARTTLS in s_client.
1770 [Philip Paeps <philip@freebsd.org>]
1772 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1773 to ensure that even with this option, only ciphersuites in the
1774 server's preference list will be accepted. (Note that the option
1775 applies only when resuming a session, so the earlier behavior was
1776 just about the algorithm choice for symmetric cryptography.)
1779 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1781 *) Fix NULL pointer dereference if a DTLS server received
1782 ChangeCipherSpec as first record (CVE-2009-1386).
1785 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1786 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1789 *) The fix in 0.9.8c that supposedly got rid of unsafe
1790 double-checked locking was incomplete for RSA blinding,
1791 addressing just one layer of what turns out to have been
1792 doubly unsafe triple-checked locking.
1794 So now fix this for real by retiring the MONT_HELPER macro
1795 in crypto/rsa/rsa_eay.c.
1797 [Bodo Moeller; problem pointed out by Marius Schilder]
1799 *) Various precautionary measures:
1801 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1803 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1804 (NB: This would require knowledge of the secret session ticket key
1805 to exploit, in which case you'd be SOL either way.)
1807 - Change bn_nist.c so that it will properly handle input BIGNUMs
1808 outside the expected range.
1810 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1813 [Neel Mehta, Bodo Moeller]
1815 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1816 the load fails. Useful for distros.
1817 [Ben Laurie and the FreeBSD team]
1819 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1822 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1825 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1827 This work was sponsored by Logica.
1830 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1831 keystores. Support for SSL/TLS client authentication too.
1832 Not compiled unless enable-capieng specified to Configure.
1834 This work was sponsored by Logica.
1837 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1838 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1839 attribute creation routines such as certifcate requests and PKCS#12
1843 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1845 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1846 handshake which could lead to a cilent crash as found using the
1847 Codenomicon TLS test suite (CVE-2008-1672)
1848 [Steve Henson, Mark Cox]
1850 *) Fix double free in TLS server name extensions which could lead to
1851 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1854 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1856 Clear the error queue to ensure that error entries left from
1857 older function calls do not interfere with the correct operation.
1858 [Lutz Jaenicke, Erik de Castro Lopo]
1860 *) Remove root CA certificates of commercial CAs:
1862 The OpenSSL project does not recommend any specific CA and does not
1863 have any policy with respect to including or excluding any CA.
1864 Therefore it does not make any sense to ship an arbitrary selection
1865 of root CA certificates with the OpenSSL software.
1868 *) RSA OAEP patches to fix two separate invalid memory reads.
1869 The first one involves inputs when 'lzero' is greater than
1870 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1871 before the beginning of from). The second one involves inputs where
1872 the 'db' section contains nothing but zeroes (there is a one-byte
1873 invalid read after the end of 'db').
1874 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1876 *) Partial backport from 0.9.9-dev:
1878 Introduce bn_mul_mont (dedicated Montgomery multiplication
1879 procedure) as a candidate for BIGNUM assembler implementation.
1880 While 0.9.9-dev uses assembler for various architectures, only
1881 x86_64 is available by default here in the 0.9.8 branch, and
1882 32-bit x86 is available through a compile-time setting.
1884 To try the 32-bit x86 assembler implementation, use Configure
1885 option "enable-montasm" (which exists only for this backport).
1887 As "enable-montasm" for 32-bit x86 disclaims code stability
1888 anyway, in this constellation we activate additional code
1889 backported from 0.9.9-dev for further performance improvements,
1890 namely BN_from_montgomery_word. (To enable this otherwise,
1891 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1893 [Andy Polyakov (backport partially by Bodo Moeller)]
1895 *) Add TLS session ticket callback. This allows an application to set
1896 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1897 values. This is useful for key rollover for example where several key
1898 sets may exist with different names.
1901 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1902 This was broken until now in 0.9.8 releases, such that the only way
1903 a registered ENGINE could be used (assuming it initialises
1904 successfully on the host) was to explicitly set it as the default
1905 for the relevant algorithms. This is in contradiction with 0.9.7
1906 behaviour and the documentation. With this fix, when an ENGINE is
1907 registered into a given algorithm's table of implementations, the
1908 'uptodate' flag is reset so that auto-discovery will be used next
1909 time a new context for that algorithm attempts to select an
1911 [Ian Lister (tweaked by Geoff Thorpe)]
1913 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1914 implemention in the following ways:
1916 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1919 Lack of BER streaming support means one pass streaming processing is
1920 only supported if data is detached: setting the streaming flag is
1921 ignored for embedded content.
1923 CMS support is disabled by default and must be explicitly enabled
1924 with the enable-cms configuration option.
1927 *) Update the GMP engine glue to do direct copies between BIGNUM and
1928 mpz_t when openssl and GMP use the same limb size. Otherwise the
1929 existing "conversion via a text string export" trick is still used.
1930 [Paul Sheer <paulsheer@gmail.com>]
1932 *) Zlib compression BIO. This is a filter BIO which compressed and
1933 uncompresses any data passed through it.
1936 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1937 RFC3394 compatible AES key wrapping.
1940 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1941 sets string data without copying. X509_ALGOR_set0() and
1942 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1943 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1944 from an X509_ATTRIBUTE structure optionally checking it occurs only
1945 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1949 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1950 to get the expected BN_FLG_CONSTTIME behavior.
1951 [Bodo Moeller (Google)]
1955 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1956 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1957 - added some more tests to do_tests.pl
1958 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1959 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1960 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1961 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1962 - various changes to netware.pl to enable gcc-cross builds on Win32
1964 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1965 - various changes to fix missing prototype warnings
1966 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1967 - added AES, WHIRLPOOL and CPUID assembler code to build files
1968 - added missing AES assembler make rules to mk1mf.pl
1969 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1970 [Guenter Knauf <eflash@gmx.net>]
1972 *) Implement certificate status request TLS extension defined in RFC3546.
1973 A client can set the appropriate parameters and receive the encoded
1974 OCSP response via a callback. A server can query the supplied parameters
1975 and set the encoded OCSP response in the callback. Add simplified examples
1976 to s_client and s_server.
1979 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1981 *) Fix various bugs:
1982 + Binary incompatibility of ssl_ctx_st structure
1983 + DTLS interoperation with non-compliant servers
1984 + Don't call get_session_cb() without proposed session
1985 + Fix ia64 assembler code
1986 [Andy Polyakov, Steve Henson]
1988 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1990 *) DTLS Handshake overhaul. There were longstanding issues with
1991 OpenSSL DTLS implementation, which were making it impossible for
1992 RFC 4347 compliant client to communicate with OpenSSL server.
1993 Unfortunately just fixing these incompatibilities would "cut off"
1994 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1995 server keeps tolerating non RFC compliant syntax. The opposite is
1996 not true, 0.9.8f client can not communicate with earlier server.
1997 This update even addresses CVE-2007-4995.
2000 *) Changes to avoid need for function casts in OpenSSL: some compilers
2001 (gcc 4.2 and later) reject their use.
2002 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
2005 *) Add RFC4507 support to OpenSSL. This includes the corrections in
2006 RFC4507bis. The encrypted ticket format is an encrypted encoded
2007 SSL_SESSION structure, that way new session features are automatically
2010 If a client application caches session in an SSL_SESSION structure
2011 support is transparent because tickets are now stored in the encoded
2014 The SSL_CTX structure automatically generates keys for ticket
2015 protection in servers so again support should be possible
2016 with no application modification.
2018 If a client or server wishes to disable RFC4507 support then the option
2019 SSL_OP_NO_TICKET can be set.
2021 Add a TLS extension debugging callback to allow the contents of any client
2022 or server extensions to be examined.
2024 This work was sponsored by Google.
2027 *) Add initial support for TLS extensions, specifically for the server_name
2028 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
2029 have new members for a host name. The SSL data structure has an
2030 additional member SSL_CTX *initial_ctx so that new sessions can be
2031 stored in that context to allow for session resumption, even after the
2032 SSL has been switched to a new SSL_CTX in reaction to a client's
2033 server_name extension.
2035 New functions (subject to change):
2037 SSL_get_servername()
2038 SSL_get_servername_type()
2041 New CTRL codes and macros (subject to change):
2043 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2044 - SSL_CTX_set_tlsext_servername_callback()
2045 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
2046 - SSL_CTX_set_tlsext_servername_arg()
2047 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
2049 openssl s_client has a new '-servername ...' option.
2051 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2052 '-key2 ...', '-servername_fatal' (subject to change). This allows
2053 testing the HostName extension for a specific single host name ('-cert'
2054 and '-key' remain fallbacks for handshakes without HostName
2055 negotiation). If the unrecogninzed_name alert has to be sent, this by
2056 default is a warning; it becomes fatal with the '-servername_fatal'
2059 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
2061 *) Add AES and SSE2 assembly language support to VC++ build.
2064 *) Mitigate attack on final subtraction in Montgomery reduction.
2067 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
2068 (which previously caused an internal error).
2071 *) Squeeze another 10% out of IGE mode when in != out.
2074 *) AES IGE mode speedup.
2075 [Dean Gaudet (Google)]
2077 *) Add the Korean symmetric 128-bit cipher SEED (see
2078 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
2079 add SEED ciphersuites from RFC 4162:
2081 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
2082 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
2083 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
2084 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
2086 To minimize changes between patchlevels in the OpenSSL 0.9.8
2087 series, SEED remains excluded from compilation unless OpenSSL
2088 is configured with 'enable-seed'.
2089 [KISA, Bodo Moeller]
2091 *) Mitigate branch prediction attacks, which can be practical if a
2092 single processor is shared, allowing a spy process to extract
2093 information. For detailed background information, see
2094 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
2095 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
2096 and Necessary Software Countermeasures"). The core of the change
2097 are new versions BN_div_no_branch() and
2098 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
2099 respectively, which are slower, but avoid the security-relevant
2100 conditional branches. These are automatically called by BN_div()
2101 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
2102 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
2103 remove a conditional branch.
2105 BN_FLG_CONSTTIME is the new name for the previous
2106 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
2107 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
2108 in the exponent causes BN_mod_exp_mont() to use the alternative
2109 implementation in BN_mod_exp_mont_consttime().) The old name
2110 remains as a deprecated alias.
2112 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
2113 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
2114 constant-time implementations for more than just exponentiation.
2115 Here too the old name is kept as a deprecated alias.
2117 BN_BLINDING_new() will now use BN_dup() for the modulus so that
2118 the BN_BLINDING structure gets an independent copy of the
2119 modulus. This means that the previous "BIGNUM *m" argument to
2120 BN_BLINDING_new() and to BN_BLINDING_create_param() now
2121 essentially becomes "const BIGNUM *m", although we can't actually
2122 change this in the header file before 0.9.9. It allows
2123 RSA_setup_blinding() to use BN_with_flags() on the modulus to
2124 enable BN_FLG_CONSTTIME.
2126 [Matthew D Wood (Intel Corp)]
2128 *) In the SSL/TLS server implementation, be strict about session ID
2129 context matching (which matters if an application uses a single
2130 external cache for different purposes). Previously,
2131 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2132 set. This did ensure strict client verification, but meant that,
2133 with applications using a single external cache for quite
2134 different requirements, clients could circumvent ciphersuite
2135 restrictions for a given session ID context by starting a session
2136 in a different context.
2139 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2140 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2141 authentication-only ciphersuites.
2144 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
2145 not complete and could lead to a possible single byte overflow
2146 (CVE-2007-5135) [Ben Laurie]
2148 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
2150 *) Since AES128 and AES256 (and similarly Camellia128 and
2151 Camellia256) share a single mask bit in the logic of
2152 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2153 kludge to work properly if AES128 is available and AES256 isn't
2154 (or if Camellia128 is available and Camellia256 isn't).
2157 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
2158 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
2159 When a point or a seed is encoded in a BIT STRING, we need to
2160 prevent the removal of trailing zero bits to get the proper DER
2161 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
2162 of a NamedBitList, for which trailing 0 bits need to be removed.)
2165 *) Have SSL/TLS server implementation tolerate "mismatched" record
2166 protocol version while receiving ClientHello even if the
2167 ClientHello is fragmented. (The server can't insist on the
2168 particular protocol version it has chosen before the ServerHello
2169 message has informed the client about his choice.)
2172 *) Add RFC 3779 support.
2173 [Rob Austein for ARIN, Ben Laurie]
2175 *) Load error codes if they are not already present instead of using a
2176 static variable. This allows them to be cleanly unloaded and reloaded.
2177 Improve header file function name parsing.
2180 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
2181 or CAPABILITY handshake as required by RFCs.
2184 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
2186 *) Introduce limits to prevent malicious keys being able to
2187 cause a denial of service. (CVE-2006-2940)
2188 [Steve Henson, Bodo Moeller]
2190 *) Fix ASN.1 parsing of certain invalid structures that can result
2191 in a denial of service. (CVE-2006-2937) [Steve Henson]
2193 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2194 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2196 *) Fix SSL client code which could crash if connecting to a
2197 malicious SSLv2 server. (CVE-2006-4343)
2198 [Tavis Ormandy and Will Drewry, Google Security Team]
2200 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
2201 match only those. Before that, "AES256-SHA" would be interpreted
2202 as a pattern and match "AES128-SHA" too (since AES128-SHA got
2203 the same strength classification in 0.9.7h) as we currently only
2204 have a single AES bit in the ciphersuite description bitmap.
2205 That change, however, also applied to ciphersuite strings such as
2206 "RC4-MD5" that intentionally matched multiple ciphersuites --
2207 namely, SSL 2.0 ciphersuites in addition to the more common ones
2208 from SSL 3.0/TLS 1.0.
2210 So we change the selection algorithm again: Naming an explicit
2211 ciphersuite selects this one ciphersuite, and any other similar
2212 ciphersuite (same bitmap) from *other* protocol versions.
2213 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2214 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
2216 Since SSL 2.0 does not have any ciphersuites for which the
2217 128/256 bit distinction would be relevant, this works for now.
2218 The proper fix will be to use different bits for AES128 and
2219 AES256, which would have avoided the problems from the beginning;
2220 however, bits are scarce, so we can only do this in a new release
2221 (not just a patchlevel) when we can change the SSL_CIPHER
2222 definition to split the single 'unsigned long mask' bitmap into
2223 multiple values to extend the available space.
2227 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2229 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2230 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2232 *) Add AES IGE and biIGE modes.
2235 *) Change the Unix randomness entropy gathering to use poll() when
2236 possible instead of select(), since the latter has some
2237 undesirable limitations.
2238 [Darryl Miles via Richard Levitte and Bodo Moeller]
2240 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2241 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2242 cannot be implicitly activated as part of, e.g., the "AES" alias.
2243 However, please upgrade to OpenSSL 0.9.9[-dev] for
2244 non-experimental use of the ECC ciphersuites to get TLS extension
2245 support, which is required for curve and point format negotiation
2246 to avoid potential handshake problems.
2249 *) Disable rogue ciphersuites:
2251 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2252 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2253 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2255 The latter two were purportedly from
2256 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2259 Also deactivate the remaining ciphersuites from
2260 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2261 unofficial, and the ID has long expired.
2264 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2265 dual-core machines) and other potential thread-safety issues.
2268 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2269 versions), which is now available for royalty-free use
2270 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2271 Also, add Camellia TLS ciphersuites from RFC 4132.
2273 To minimize changes between patchlevels in the OpenSSL 0.9.8
2274 series, Camellia remains excluded from compilation unless OpenSSL
2275 is configured with 'enable-camellia'.
2278 *) Disable the padding bug check when compression is in use. The padding
2279 bug check assumes the first packet is of even length, this is not
2280 necessarily true if compresssion is enabled and can result in false
2281 positives causing handshake failure. The actual bug test is ancient
2282 code so it is hoped that implementations will either have fixed it by
2283 now or any which still have the bug do not support compression.
2286 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2288 *) When applying a cipher rule check to see if string match is an explicit
2289 cipher suite and only match that one cipher suite if it is.
2292 *) Link in manifests for VC++ if needed.
2293 [Austin Ziegler <halostatue@gmail.com>]
2295 *) Update support for ECC-based TLS ciphersuites according to
2296 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2297 TLS extensions, which are supported starting with the 0.9.9
2298 branch, not in the OpenSSL 0.9.8 branch).
2301 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2302 opaque EVP_CIPHER_CTX handling.
2305 *) Fixes and enhancements to zlib compression code. We now only use
2306 "zlib1.dll" and use the default __cdecl calling convention on Win32
2307 to conform with the standards mentioned here:
2308 http://www.zlib.net/DLL_FAQ.txt
2309 Static zlib linking now works on Windows and the new --with-zlib-include
2310 --with-zlib-lib options to Configure can be used to supply the location
2311 of the headers and library. Gracefully handle case where zlib library
2315 *) Several fixes and enhancements to the OID generation code. The old code
2316 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2317 handle numbers larger than ULONG_MAX, truncated printing and had a
2318 non standard OBJ_obj2txt() behaviour.
2321 *) Add support for building of engines under engine/ as shared libraries
2322 under VC++ build system.
2325 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2326 Hopefully, we will not see any false combination of paths any more.
2329 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2331 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2332 (part of SSL_OP_ALL). This option used to disable the
2333 countermeasure against man-in-the-middle protocol-version
2334 rollback in the SSL 2.0 server implementation, which is a bad
2335 idea. (CVE-2005-2969)
2337 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2338 for Information Security, National Institute of Advanced Industrial
2339 Science and Technology [AIST], Japan)]
2341 *) Add two function to clear and return the verify parameter flags.
2344 *) Keep cipherlists sorted in the source instead of sorting them at
2345 runtime, thus removing the need for a lock.
2348 *) Avoid some small subgroup attacks in Diffie-Hellman.
2349 [Nick Mathewson and Ben Laurie]
2351 *) Add functions for well-known primes.
2354 *) Extended Windows CE support.
2355 [Satoshi Nakamura and Andy Polyakov]
2357 *) Initialize SSL_METHOD structures at compile time instead of during
2358 runtime, thus removing the need for a lock.
2361 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2362 attempting to decrypt each encrypted key in turn. Add support to
2366 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2368 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2371 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2374 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2375 key into the same file any more.
2378 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2381 *) Add -utf8 command line and config file option to 'ca'.
2382 [Stefan <stf@udoma.org]
2384 *) Removed the macro des_crypt(), as it seems to conflict with some
2385 libraries. Use DES_crypt().
2388 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2389 involves renaming the source and generated shared-libs for
2390 both. The engines will accept the corrected or legacy ids
2391 ('ncipher' and '4758_cca' respectively) when binding. NB,
2392 this only applies when building 'shared'.
2393 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2395 *) Add attribute functions to EVP_PKEY structure. Modify
2396 PKCS12_create() to recognize a CSP name attribute and
2397 use it. Make -CSP option work again in pkcs12 utility.
2400 *) Add new functionality to the bn blinding code:
2401 - automatic re-creation of the BN_BLINDING parameters after
2402 a fixed number of uses (currently 32)
2403 - add new function for parameter creation
2404 - introduce flags to control the update behaviour of the
2405 BN_BLINDING parameters
2406 - hide BN_BLINDING structure
2407 Add a second BN_BLINDING slot to the RSA structure to improve
2408 performance when a single RSA object is shared among several
2412 *) Add support for DTLS.
2413 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2415 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2416 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2419 *) Remove buggy and incompletet DH cert support from
2420 ssl/ssl_rsa.c and ssl/s3_both.c
2423 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2424 the apps/openssl applications.
2427 *) Compile clean with "-Wall -Wmissing-prototypes
2428 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2429 DEBUG_SAFESTACK must also be set.
2432 *) Change ./Configure so that certain algorithms can be disabled by default.
2433 The new counterpiece to "no-xxx" is "enable-xxx".
2435 The patented RC5 and MDC2 algorithms will now be disabled unless
2436 "enable-rc5" and "enable-mdc2", respectively, are specified.
2438 (IDEA remains enabled despite being patented. This is because IDEA
2439 is frequently required for interoperability, and there is no license
2440 fee for non-commercial use. As before, "no-idea" can be used to
2441 avoid this algorithm.)
2445 *) Add processing of proxy certificates (see RFC 3820). This work was
2446 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2447 EGEE (Enabling Grids for E-science in Europe).
2450 *) RC4 performance overhaul on modern architectures/implementations, such
2451 as Intel P4, IA-64 and AMD64.
2454 *) New utility extract-section.pl. This can be used specify an alternative
2455 section number in a pod file instead of having to treat each file as
2456 a separate case in Makefile. This can be done by adding two lines to the
2459 =for comment openssl_section:XXX
2461 The blank line is mandatory.
2465 *) New arguments -certform, -keyform and -pass for s_client and s_server
2466 to allow alternative format key and certificate files and passphrase
2470 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2471 update associated structures and add various utility functions.
2473 Add new policy related verify parameters, include policy checking in
2474 standard verify code. Enhance 'smime' application with extra parameters
2475 to support policy checking and print out.
2478 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2479 Nehemiah processors. These extensions support AES encryption in hardware
2480 as well as RNG (though RNG support is currently disabled).
2481 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2483 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2486 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2487 [Andy Polyakov and a number of other people]
2489 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2490 implementation contributed by IBM.
2491 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2493 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2494 exponent rather than 'unsigned long'. There is a corresponding change to
2495 the new 'rsa_keygen' element of the RSA_METHOD structure.
2496 [Jelte Jansen, Geoff Thorpe]
2498 *) Functionality for creating the initial serial number file is now
2499 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2501 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2502 number file to 1, which is bound to cause problems. To avoid
2503 the problems while respecting compatibility between different 0.9.7
2504 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2505 CA.pl for serial number initialization. With the new release 0.9.8,
2506 we can fix the problem directly in the 'ca' utility.)
2509 *) Reduced header interdepencies by declaring more opaque objects in
2510 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2511 give fewer recursive includes, which could break lazy source code - so
2512 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2513 developers should define this symbol when building and using openssl to
2514 ensure they track the recommended behaviour, interfaces, [etc], but
2515 backwards-compatible behaviour prevails when this isn't defined.
2518 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2521 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2522 This will generate a random key of the appropriate length based on the
2523 cipher context. The EVP_CIPHER can provide its own random key generation
2524 routine to support keys of a specific form. This is used in the des and
2525 3des routines to generate a key of the correct parity. Update S/MIME
2526 code to use new functions and hence generate correct parity DES keys.
2527 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2528 valid (weak or incorrect parity).
2531 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2532 as looking them up. This is useful when the verified structure may contain
2533 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2534 present unless the new PKCS7_NO_CRL flag is asserted.
2537 *) Extend ASN1 oid configuration module. It now additionally accepts the
2540 shortName = some long name, 1.2.3.4
2543 *) Reimplemented the BN_CTX implementation. There is now no more static
2544 limitation on the number of variables it can handle nor the depth of the
2545 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2546 information can now expand as required, and rather than having a single
2547 static array of bignums, BN_CTX now uses a linked-list of such arrays
2548 allowing it to expand on demand whilst maintaining the usefulness of
2549 BN_CTX's "bundling".
2552 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2553 to allow all RSA operations to function using a single BN_CTX.
2556 *) Preliminary support for certificate policy evaluation and checking. This
2557 is initially intended to pass the tests outlined in "Conformance Testing
2558 of Relying Party Client Certificate Path Processing Logic" v1.07.
2561 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2562 remained unused and not that useful. A variety of other little bignum
2563 tweaks and fixes have also been made continuing on from the audit (see
2567 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2568 associated ASN1, EVP and SSL functions and old ASN1 macros.
2571 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2572 and this should never fail. So the return value from the use of
2573 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2574 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2577 *) BN_CTX_get() should return zero-valued bignums, providing the same
2578 initialised value as BN_new().
2579 [Geoff Thorpe, suggested by Ulf Möller]
2581 *) Support for inhibitAnyPolicy certificate extension.
2584 *) An audit of the BIGNUM code is underway, for which debugging code is
2585 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2586 is considered valid when processing BIGNUMs, and causes execution to
2587 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2588 further steps are taken to deliberately pollute unused data in BIGNUM
2589 structures to try and expose faulty code further on. For now, openssl will
2590 (in its default mode of operation) continue to tolerate the inconsistent
2591 forms that it has tolerated in the past, but authors and packagers should
2592 consider trying openssl and their own applications when compiled with
2593 these debugging symbols defined. It will help highlight potential bugs in
2594 their own code, and will improve the test coverage for OpenSSL itself. At
2595 some point, these tighter rules will become openssl's default to improve
2596 maintainability, though the assert()s and other overheads will remain only
2597 in debugging configurations. See bn.h for more details.
2598 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2600 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2601 that can only be obtained through BN_CTX_new() (which implicitly
2602 initialises it). The presence of this function only made it possible
2603 to overwrite an existing structure (and cause memory leaks).
2606 *) Because of the callback-based approach for implementing LHASH as a
2607 template type, lh_insert() adds opaque objects to hash-tables and
2608 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2609 to clean up those corresponding objects before destroying the hash table
2610 (and losing the object pointers). So some over-zealous constifications in
2611 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2612 objects as "const" and the lh_doall[_arg] callback wrappers are not
2613 prototyped to have "const" restrictions on the object pointers they are
2614 given (and so aren't required to cast them away any more).
2617 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2618 (speed) prefers to use its own implementation. The two implementations
2619 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2620 its object type properly exposed (MS_TM) instead of casting to/from "char
2621 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2622 aren't necessarily the greatest nomenclatures - but this is what was used
2623 internally to the implementation so I've used that for now.
2626 *) Ensure that deprecated functions do not get compiled when
2627 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2628 the self-tests were still using deprecated key-generation functions so
2629 these have been updated also.
2632 *) Reorganise PKCS#7 code to separate the digest location functionality
2633 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2634 New function PKCS7_set_digest() to set the digest type for PKCS#7
2635 digestedData type. Add additional code to correctly generate the
2636 digestedData type and add support for this type in PKCS7 initialization
2640 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2641 structure of type "other".
2644 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2645 sure the loop does correctly stop and breaking ("division by zero")
2646 modulus operations are not performed. The (pre-generated) prime
2647 table crypto/bn/bn_prime.h was already correct, but it could not be
2648 re-generated on some platforms because of the "division by zero"
2649 situation in the script.
2650 [Ralf S. Engelschall]
2652 *) Update support for ECC-based TLS ciphersuites according to
2653 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2654 SHA-1 now is only used for "small" curves (where the
2655 representation of a field element takes up to 24 bytes); for
2656 larger curves, the field element resulting from ECDH is directly
2657 used as premaster secret.
2658 [Douglas Stebila (Sun Microsystems Laboratories)]
2660 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2661 curve secp160r1 to the tests.
2662 [Douglas Stebila (Sun Microsystems Laboratories)]
2664 *) Add the possibility to load symbols globally with DSO.
2665 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2667 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2668 control of the error stack.
2671 *) Add support for STORE in ENGINE.
2674 *) Add the STORE type. The intention is to provide a common interface
2675 to certificate and key stores, be they simple file-based stores, or
2676 HSM-type store, or LDAP stores, or...
2677 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2680 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2681 pass a list of arguments to any function as well as provide a way
2682 for a function to pass data back to the caller.
2685 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2686 works like BUF_strdup() but can be used to duplicate a portion of
2687 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2691 *) Add the function sk_find_ex() which works like sk_find(), but will
2692 return an index to an element even if an exact match couldn't be
2693 found. The index is guaranteed to point at the element where the
2694 searched-for key would be inserted to preserve sorting order.
2697 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2698 takes an extra flags argument for optional functionality. Currently,
2699 the following flags are defined:
2701 OBJ_BSEARCH_VALUE_ON_NOMATCH
2702 This one gets OBJ_bsearch_ex() to return a pointer to the first
2703 element where the comparing function returns a negative or zero
2706 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2707 This one gets OBJ_bsearch_ex() to return a pointer to the first
2708 element where the comparing function returns zero. This is useful
2709 if there are more than one element where the comparing function
2713 *) Make it possible to create self-signed certificates with 'openssl ca'
2714 in such a way that the self-signed certificate becomes part of the
2715 CA database and uses the same mechanisms for serial number generation
2716 as all other certificate signing. The new flag '-selfsign' enables
2717 this functionality. Adapt CA.sh and CA.pl.in.
2720 *) Add functionality to check the public key of a certificate request
2721 against a given private. This is useful to check that a certificate
2722 request can be signed by that key (self-signing).
2725 *) Make it possible to have multiple active certificates with the same
2726 subject in the CA index file. This is done only if the keyword
2727 'unique_subject' is set to 'no' in the main CA section (default
2728 if 'CA_default') of the configuration file. The value is saved
2729 with the database itself in a separate index attribute file,
2730 named like the index file with '.attr' appended to the name.
2733 *) Generate muti valued AVAs using '+' notation in config files for
2737 *) Support for nameConstraints certificate extension.
2740 *) Support for policyConstraints certificate extension.
2743 *) Support for policyMappings certificate extension.
2746 *) Make sure the default DSA_METHOD implementation only uses its
2747 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2748 and change its own handlers to be NULL so as to remove unnecessary
2749 indirection. This lets alternative implementations fallback to the
2750 default implementation more easily.
2753 *) Support for directoryName in GeneralName related extensions
2757 *) Make it possible to link applications using Makefile.shared.
2758 Make that possible even when linking against static libraries!
2761 *) Support for single pass processing for S/MIME signing. This now
2762 means that S/MIME signing can be done from a pipe, in addition
2763 cleartext signing (multipart/signed type) is effectively streaming
2764 and the signed data does not need to be all held in memory.
2766 This is done with a new flag PKCS7_STREAM. When this flag is set
2767 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2768 is done after the data is output (and digests calculated) in
2769 SMIME_write_PKCS7().
2772 *) Add full support for -rpath/-R, both in shared libraries and
2773 applications, at least on the platforms where it's known how
2777 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2778 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2779 will now compute a table of multiples of the generator that
2780 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2781 faster (notably in the case of a single point multiplication,
2782 scalar * generator).
2783 [Nils Larsch, Bodo Moeller]
2785 *) IPv6 support for certificate extensions. The various extensions
2786 which use the IP:a.b.c.d can now take IPv6 addresses using the
2787 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2791 *) Added an ENGINE that implements RSA by performing private key
2792 exponentiations with the GMP library. The conversions to and from
2793 GMP's mpz_t format aren't optimised nor are any montgomery forms
2794 cached, and on x86 it appears OpenSSL's own performance has caught up.
2795 However there are likely to be other architectures where GMP could
2796 provide a boost. This ENGINE is not built in by default, but it can be
2797 specified at Configure time and should be accompanied by the necessary
2798 linker additions, eg;
2799 ./config -DOPENSSL_USE_GMP -lgmp
2802 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2803 testing availability of engines with "-t" - the old behaviour is
2804 produced by increasing the feature's verbosity with "-tt".
2807 *) ECDSA routines: under certain error conditions uninitialized BN objects
2808 could be freed. Solution: make sure initialization is performed early
2809 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2813 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2814 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2815 software implementations. For DSA and DH, parameter generation can
2816 also be overriden by providing the appropriate method callbacks.
2819 *) Change the "progress" mechanism used in key-generation and
2820 primality testing to functions that take a new BN_GENCB pointer in
2821 place of callback/argument pairs. The new API functions have "_ex"
2822 postfixes and the older functions are reimplemented as wrappers for
2823 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2824 declarations of the old functions to help (graceful) attempts to
2825 migrate to the new functions. Also, the new key-generation API
2826 functions operate on a caller-supplied key-structure and return
2827 success/failure rather than returning a key or NULL - this is to
2828 help make "keygen" another member function of RSA_METHOD etc.
2830 Example for using the new callback interface:
2832 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2836 BN_GENCB_set(&my_cb, my_callback, my_arg);
2838 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2839 /* For the meaning of a, b in calls to my_callback(), see the
2840 * documentation of the function that calls the callback.
2841 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2842 * my_callback should return 1 if it wants BN_is_prime_ex()
2843 * to continue, or 0 to stop.
2848 *) Change the ZLIB compression method to be stateful, and make it
2849 available to TLS with the number defined in
2850 draft-ietf-tls-compression-04.txt.
2853 *) Add the ASN.1 structures and functions for CertificatePair, which
2854 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2856 CertificatePair ::= SEQUENCE {
2857 forward [0] Certificate OPTIONAL,
2858 reverse [1] Certificate OPTIONAL,
2859 -- at least one of the pair shall be present -- }
2861 Also implement the PEM functions to read and write certificate
2862 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2864 This needed to be defined, mostly for the sake of the LDAP
2865 attribute crossCertificatePair, but may prove useful elsewhere as
2869 *) Make it possible to inhibit symlinking of shared libraries in
2870 Makefile.shared, for Cygwin's sake.
2873 *) Extend the BIGNUM API by creating a function
2874 void BN_set_negative(BIGNUM *a, int neg);
2875 and a macro that behave like
2876 int BN_is_negative(const BIGNUM *a);
2878 to avoid the need to access 'a->neg' directly in applications.
2881 *) Implement fast modular reduction for pseudo-Mersenne primes
2882 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2883 EC_GROUP_new_curve_GFp() will now automatically use this
2885 [Nils Larsch <nla@trustcenter.de>]
2887 *) Add new lock type (CRYPTO_LOCK_BN).
2890 *) Change the ENGINE framework to automatically load engines
2891 dynamically from specific directories unless they could be
2892 found to already be built in or loaded. Move all the
2893 current engines except for the cryptodev one to a new
2895 The engines in engines/ are built as shared libraries if
2896 the "shared" options was given to ./Configure or ./config.
2897 Otherwise, they are inserted in libcrypto.a.
2898 /usr/local/ssl/engines is the default directory for dynamic
2899 engines, but that can be overriden at configure time through
2900 the usual use of --prefix and/or --openssldir, and at run
2901 time with the environment variable OPENSSL_ENGINES.
2902 [Geoff Thorpe and Richard Levitte]
2904 *) Add Makefile.shared, a helper makefile to build shared
2905 libraries. Addapt Makefile.org.
2908 *) Add version info to Win32 DLLs.
2909 [Peter 'Luna' Runestig" <peter@runestig.com>]
2911 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2912 can be added using this API to created arbitrary PKCS#12
2913 files while avoiding the low level API.
2915 New options to PKCS12_create(), key or cert can be NULL and
2916 will then be omitted from the output file. The encryption
2917 algorithm NIDs can be set to -1 for no encryption, the mac
2918 iteration count can be set to 0 to omit the mac.
2920 Enhance pkcs12 utility by making the -nokeys and -nocerts
2921 options work when creating a PKCS#12 file. New option -nomac
2922 to omit the mac, NONE can be set for an encryption algorithm.
2923 New code is modified to use the enhanced PKCS12_create()
2924 instead of the low level API.
2927 *) Extend ASN1 encoder to support indefinite length constructed
2928 encoding. This can output sequences tags and octet strings in
2929 this form. Modify pk7_asn1.c to support indefinite length
2930 encoding. This is experimental and needs additional code to
2931 be useful, such as an ASN1 bio and some enhanced streaming
2934 Extend template encode functionality so that tagging is passed
2935 down to the template encoder.
2938 *) Let 'openssl req' fail if an argument to '-newkey' is not
2939 recognized instead of using RSA as a default.
2942 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2943 As these are not official, they are not included in "ALL";
2944 the "ECCdraft" ciphersuite group alias can be used to select them.
2945 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2947 *) Add ECDH engine support.
2948 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2950 *) Add ECDH in new directory crypto/ecdh/.
2951 [Douglas Stebila (Sun Microsystems Laboratories)]
2953 *) Let BN_rand_range() abort with an error after 100 iterations
2954 without success (which indicates a broken PRNG).
2957 *) Change BN_mod_sqrt() so that it verifies that the input value
2958 is really the square of the return value. (Previously,
2959 BN_mod_sqrt would show GIGO behaviour.)
2962 *) Add named elliptic curves over binary fields from X9.62, SECG,
2963 and WAP/WTLS; add OIDs that were still missing.
2965 [Sheueling Chang Shantz and Douglas Stebila
2966 (Sun Microsystems Laboratories)]
2968 *) Extend the EC library for elliptic curves over binary fields
2969 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2972 EC_GF2m_simple_method
2976 EC_GROUP_new_curve_GF2m
2977 EC_GROUP_set_curve_GF2m
2978 EC_GROUP_get_curve_GF2m
2979 EC_POINT_set_affine_coordinates_GF2m
2980 EC_POINT_get_affine_coordinates_GF2m
2981 EC_POINT_set_compressed_coordinates_GF2m
2983 Point compression for binary fields is disabled by default for
2984 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2987 As binary polynomials are represented as BIGNUMs, various members
2988 of the EC_GROUP and EC_POINT data structures can be shared
2989 between the implementations for prime fields and binary fields;
2990 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2991 are essentially identical to their ..._GFp counterparts.
2992 (For simplicity, the '..._GFp' prefix has been dropped from
2993 various internal method names.)
2995 An internal 'field_div' method (similar to 'field_mul' and
2996 'field_sqr') has been added; this is used only for binary fields.
2998 [Sheueling Chang Shantz and Douglas Stebila
2999 (Sun Microsystems Laboratories)]
3001 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
3002 through methods ('mul', 'precompute_mult').
3004 The generic implementations (now internally called 'ec_wNAF_mul'
3005 and 'ec_wNAF_precomputed_mult') remain the default if these
3006 methods are undefined.
3008 [Sheueling Chang Shantz and Douglas Stebila
3009 (Sun Microsystems Laboratories)]
3011 *) New function EC_GROUP_get_degree, which is defined through
3012 EC_METHOD. For curves over prime fields, this returns the bit
3013 length of the modulus.
3015 [Sheueling Chang Shantz and Douglas Stebila
3016 (Sun Microsystems Laboratories)]
3018 *) New functions EC_GROUP_dup, EC_POINT_dup.
3019 (These simply call ..._new and ..._copy).
3021 [Sheueling Chang Shantz and Douglas Stebila
3022 (Sun Microsystems Laboratories)]
3024 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
3025 Polynomials are represented as BIGNUMs (where the sign bit is not
3026 used) in the following functions [macros]:
3029 BN_GF2m_sub [= BN_GF2m_add]
3030 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
3031 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
3032 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
3034 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
3035 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
3036 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
3037 BN_GF2m_cmp [= BN_ucmp]
3039 (Note that only the 'mod' functions are actually for fields GF(2^m).
3040 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
3042 For some functions, an the irreducible polynomial defining a
3043 field can be given as an 'unsigned int[]' with strictly
3044 decreasing elements giving the indices of those bits that are set;
3045 i.e., p[] represents the polynomial
3046 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
3048 p[0] > p[1] > ... > p[k] = 0.
3049 This applies to the following functions:
3054 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
3055 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
3057 BN_GF2m_mod_sqrt_arr
3058 BN_GF2m_mod_solve_quad_arr
3062 Conversion can be performed by the following functions:
3067 bntest.c has additional tests for binary polynomial arithmetic.
3069 Two implementations for BN_GF2m_mod_div() are available.
3070 The default algorithm simply uses BN_GF2m_mod_inv() and
3071 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
3072 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
3073 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
3075 [Sheueling Chang Shantz and Douglas Stebila
3076 (Sun Microsystems Laboratories)]
3078 *) Add new error code 'ERR_R_DISABLED' that can be used when some
3079 functionality is disabled at compile-time.
3080 [Douglas Stebila <douglas.stebila@sun.com>]
3082 *) Change default behaviour of 'openssl asn1parse' so that more
3083 information is visible when viewing, e.g., a certificate:
3085 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
3086 mode the content of non-printable OCTET STRINGs is output in a
3087 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
3088 avoid the appearance of a printable string.
3089 [Nils Larsch <nla@trustcenter.de>]
3091 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
3093 EC_GROUP_set_asn1_flag()
3094 EC_GROUP_get_asn1_flag()
3095 EC_GROUP_set_point_conversion_form()
3096 EC_GROUP_get_point_conversion_form()
3097 These control ASN1 encoding details:
3098 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
3099 has been set to OPENSSL_EC_NAMED_CURVE.
3100 - Points are encoded in uncompressed form by default; options for
3101 asn1_for are as for point2oct, namely
3102 POINT_CONVERSION_COMPRESSED
3103 POINT_CONVERSION_UNCOMPRESSED
3104 POINT_CONVERSION_HYBRID
3106 Also add 'seed' and 'seed_len' members to EC_GROUP with access
3109 EC_GROUP_get0_seed()
3110 EC_GROUP_get_seed_len()
3111 This is used only for ASN1 purposes (so far).
3112 [Nils Larsch <nla@trustcenter.de>]
3114 *) Add 'field_type' member to EC_METHOD, which holds the NID
3115 of the appropriate field type OID. The new function
3116 EC_METHOD_get_field_type() returns this value.
3117 [Nils Larsch <nla@trustcenter.de>]
3122 EC_POINT_point2hex()
3123 EC_POINT_hex2point()
3124 providing useful interfaces to EC_POINT_point2oct() and
3125 EC_POINT_oct2point().
3126 [Nils Larsch <nla@trustcenter.de>]
3128 *) Change internals of the EC library so that the functions
3129 EC_GROUP_set_generator()
3130 EC_GROUP_get_generator()
3131 EC_GROUP_get_order()
3132 EC_GROUP_get_cofactor()
3133 are implemented directly in crypto/ec/ec_lib.c and not dispatched
3134 to methods, which would lead to unnecessary code duplication when
3135 adding different types of curves.
3136 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
3138 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
3139 arithmetic, and such that modified wNAFs are generated
3140 (which avoid length expansion in many cases).
3143 *) Add a function EC_GROUP_check_discriminant() (defined via
3144 EC_METHOD) that verifies that the curve discriminant is non-zero.
3146 Add a function EC_GROUP_check() that makes some sanity tests
3147 on a EC_GROUP, its generator and order. This includes
3148 EC_GROUP_check_discriminant().
3149 [Nils Larsch <nla@trustcenter.de>]
3151 *) Add ECDSA in new directory crypto/ecdsa/.
3153 Add applications 'openssl ecparam' and 'openssl ecdsa'
3154 (these are based on 'openssl dsaparam' and 'openssl dsa').
3156 ECDSA support is also included in various other files across the
3157 library. Most notably,
3158 - 'openssl req' now has a '-newkey ecdsa:file' option;
3159 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
3160 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
3161 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
3162 them suitable for ECDSA where domain parameters must be
3163 extracted before the specific public key;
3164 - ECDSA engine support has been added.
3165 [Nils Larsch <nla@trustcenter.de>]
3167 *) Include some named elliptic curves, and add OIDs from X9.62,
3168 SECG, and WAP/WTLS. Each curve can be obtained from the new
3170 EC_GROUP_new_by_curve_name(),
3171 and the list of available named curves can be obtained with
3172 EC_get_builtin_curves().
3173 Also add a 'curve_name' member to EC_GROUP objects, which can be
3175 EC_GROUP_set_curve_name()
3176 EC_GROUP_get_curve_name()
3177 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
3179 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3180 was actually never needed) and in BN_mul(). The removal in BN_mul()
3181 required a small change in bn_mul_part_recursive() and the addition
3182 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3183 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3184 bn_sub_words() and bn_add_words() except they take arrays with
3188 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
3190 *) Cleanse PEM buffers before freeing them since they may contain
3192 [Benjamin Bennett <ben@psc.edu>]
3194 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3195 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3196 authentication-only ciphersuites.
3199 *) Since AES128 and AES256 share a single mask bit in the logic of
3200 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3201 kludge to work properly if AES128 is available and AES256 isn't.
3204 *) Expand security boundary to match 1.1.1 module.
3207 *) Remove redundant features: hash file source, editing of test vectors
3208 modify fipsld to use external fips_premain.c signature.
3211 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3212 run algorithm test programs.
3215 *) Make algorithm test programs more tolerant of whitespace.
3218 *) Have SSL/TLS server implementation tolerate "mismatched" record
3219 protocol version while receiving ClientHello even if the
3220 ClientHello is fragmented. (The server can't insist on the
3221 particular protocol version it has chosen before the ServerHello
3222 message has informed the client about his choice.)
3225 *) Load error codes if they are not already present instead of using a
3226 static variable. This allows them to be cleanly unloaded and reloaded.
3229 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3231 *) Introduce limits to prevent malicious keys being able to
3232 cause a denial of service. (CVE-2006-2940)
3233 [Steve Henson, Bodo Moeller]
3235 *) Fix ASN.1 parsing of certain invalid structures that can result
3236 in a denial of service. (CVE-2006-2937) [Steve Henson]
3238 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3239 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3241 *) Fix SSL client code which could crash if connecting to a
3242 malicious SSLv2 server. (CVE-2006-4343)
3243 [Tavis Ormandy and Will Drewry, Google Security Team]
3245 *) Change ciphersuite string processing so that an explicit
3246 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3247 will no longer include "AES128-SHA"), and any other similar
3248 ciphersuite (same bitmap) from *other* protocol versions (so that
3249 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3250 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3251 changes from 0.9.8b and 0.9.8d.
3254 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3256 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3257 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3259 *) Change the Unix randomness entropy gathering to use poll() when
3260 possible instead of select(), since the latter has some
3261 undesirable limitations.
3262 [Darryl Miles via Richard Levitte and Bodo Moeller]
3264 *) Disable rogue ciphersuites:
3266 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3267 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3268 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3270 The latter two were purportedly from
3271 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3274 Also deactive the remaining ciphersuites from
3275 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3276 unofficial, and the ID has long expired.
3279 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3280 dual-core machines) and other potential thread-safety issues.
3283 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3285 *) Adapt fipsld and the build system to link against the validated FIPS
3286 module in FIPS mode.
3289 *) Fixes for VC++ 2005 build under Windows.
3292 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3293 from a Windows bash shell such as MSYS. It is autodetected from the
3294 "config" script when run from a VC++ environment. Modify standard VC++
3295 build to use fipscanister.o from the GNU make build.
3298 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3300 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3301 The value now differs depending on if you build for FIPS or not.
3302 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3303 safely run with a non-FIPSed libcrypto, as it may crash because of
3304 the difference induced by this change.
3307 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3309 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3310 (part of SSL_OP_ALL). This option used to disable the
3311 countermeasure against man-in-the-middle protocol-version
3312 rollback in the SSL 2.0 server implementation, which is a bad
3313 idea. (CVE-2005-2969)
3315 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3316 for Information Security, National Institute of Advanced Industrial
3317 Science and Technology [AIST], Japan)]
3319 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3320 mainly for FIPS compliance and not fully integrated at this stage.
3323 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3324 the exponentiation using a fixed-length exponent. (Otherwise,
3325 the information leaked through timing could expose the secret key
3326 after many signatures; cf. Bleichenbacher's attack on DSA with
3330 *) Make a new fixed-window mod_exp implementation the default for
3331 RSA, DSA, and DH private-key operations so that the sequence of
3332 squares and multiplies and the memory access pattern are
3333 independent of the particular secret key. This will mitigate
3334 cache-timing and potential related attacks.
3336 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3337 and this is automatically used by BN_mod_exp_mont() if the new flag
3338 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3339 will use this BN flag for private exponents unless the flag
3340 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3341 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3343 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3345 *) Change the client implementation for SSLv23_method() and
3346 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3347 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3348 (Previously, the SSL 2.0 backwards compatible Client Hello
3349 message format would be used even with SSL_OP_NO_SSLv2.)
3352 *) Add support for smime-type MIME parameter in S/MIME messages which some
3356 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3357 a threadsafe manner. Modify rsa code to use new function and add calls
3358 to dsa and dh code (which had race conditions before).
3361 *) Include the fixed error library code in the C error file definitions
3362 instead of fixing them up at runtime. This keeps the error code
3363 structures constant.
3366 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3368 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3371 *) Fixes for newer kerberos headers. NB: the casts are needed because
3372 the 'length' field is signed on one version and unsigned on another
3373 with no (?) obvious way to tell the difference, without these VC++
3374 complains. Also the "definition" of FAR (blank) is no longer included
3375 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3376 some needed definitions.
3379 *) Undo Cygwin change.
3382 *) Added support for proxy certificates according to RFC 3820.
3383 Because they may be a security thread to unaware applications,
3384 they must be explicitely allowed in run-time. See
3385 docs/HOWTO/proxy_certificates.txt for further information.
3388 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3390 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3391 server and client random values. Previously
3392 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3393 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3395 This change has negligible security impact because:
3397 1. Server and client random values still have 24 bytes of pseudo random
3400 2. Server and client random values are sent in the clear in the initial
3403 3. The master secret is derived using the premaster secret (48 bytes in
3404 size for static RSA ciphersuites) as well as client server and random
3407 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3410 [Stephen Henson, reported by UK NISCC]
3412 *) Use Windows randomness collection on Cygwin.
3415 *) Fix hang in EGD/PRNGD query when communication socket is closed
3416 prematurely by EGD/PRNGD.
3417 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3419 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3422 *) Back-port of selected performance improvements from development
3423 branch, as well as improved support for PowerPC platforms.
3426 *) Add lots of checks for memory allocation failure, error codes to indicate
3427 failure and freeing up memory if a failure occurs.
3428 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3430 *) Add new -passin argument to dgst.
3433 *) Perform some character comparisons of different types in X509_NAME_cmp:
3434 this is needed for some certificates that reencode DNs into UTF8Strings
3435 (in violation of RFC3280) and can't or wont issue name rollover
3439 *) Make an explicit check during certificate validation to see that
3440 the CA setting in each certificate on the chain is correct. As a
3441 side effect always do the following basic checks on extensions,
3442 not just when there's an associated purpose to the check:
3444 - if there is an unhandled critical extension (unless the user
3445 has chosen to ignore this fault)
3446 - if the path length has been exceeded (if one is set at all)
3447 - that certain extensions fit the associated purpose (if one has
3451 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3453 *) Avoid a race condition when CRLs are checked in a multi threaded
3454 environment. This would happen due to the reordering of the revoked
3455 entries during signature checking and serial number lookup. Now the
3456 encoding is cached and the serial number sort performed under a lock.
3457 Add new STACK function sk_is_sorted().
3460 *) Add Delta CRL to the extension code.
3463 *) Various fixes to s3_pkt.c so alerts are sent properly.
3464 [David Holmes <d.holmes@f5.com>]
3466 *) Reduce the chances of duplicate issuer name and serial numbers (in
3467 violation of RFC3280) using the OpenSSL certificate creation utilities.
3468 This is done by creating a random 64 bit value for the initial serial
3469 number when a serial number file is created or when a self signed
3470 certificate is created using 'openssl req -x509'. The initial serial
3471 number file is created using 'openssl x509 -next_serial' in CA.pl
3472 rather than being initialized to 1.
3475 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3477 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3478 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3479 [Joe Orton, Steve Henson]
3481 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3483 [Joe Orton, Steve Henson]
3485 *) Make it possible to have multiple active certificates with the same
3486 subject in the CA index file. This is done only if the keyword
3487 'unique_subject' is set to 'no' in the main CA section (default
3488 if 'CA_default') of the configuration file. The value is saved
3489 with the database itself in a separate index attribute file,
3490 named like the index file with '.attr' appended to the name.
3493 *) X509 verify fixes. Disable broken certificate workarounds when
3494 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3495 keyUsage extension present. Don't accept CRLs with unhandled critical
3496 extensions: since verify currently doesn't process CRL extensions this
3497 rejects a CRL with *any* critical extensions. Add new verify error codes
3501 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3502 A clarification of RFC2560 will require the use of OCTET STRINGs and
3503 some implementations cannot handle the current raw format. Since OpenSSL
3504 copies and compares OCSP nonces as opaque blobs without any attempt at
3505 parsing them this should not create any compatibility issues.
3508 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3509 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3510 this HMAC (and other) operations are several times slower than OpenSSL
3514 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3515 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3517 *) Use the correct content when signing type "other".
3520 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3522 *) Fix various bugs revealed by running the NISCC test suite:
3524 Stop out of bounds reads in the ASN1 code when presented with
3525 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3527 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3529 If verify callback ignores invalid public key errors don't try to check
3530 certificate signature with the NULL public key.
3534 *) New -ignore_err option in ocsp application to stop the server
3535 exiting on the first error in a request.
3538 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3539 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3543 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3544 extra data after the compression methods not only for TLS 1.0
3545 but also for SSL 3.0 (as required by the specification).
3546 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3548 *) Change X509_certificate_type() to mark the key as exported/exportable
3549 when it's 512 *bits* long, not 512 bytes.
3552 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3553 blocks during encryption.
3556 *) Various fixes to base64 BIO and non blocking I/O. On write
3557 flushes were not handled properly if the BIO retried. On read
3558 data was not being buffered properly and had various logic bugs.
3559 This also affects blocking I/O when the data being decoded is a
3563 *) Various S/MIME bugfixes and compatibility changes:
3564 output correct application/pkcs7 MIME type if
3565 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3566 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3567 of files as .eml work). Correctly handle very long lines in MIME
3571 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3573 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3574 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3575 a protocol version number mismatch like a decryption error
3576 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3579 *) Turn on RSA blinding by default in the default implementation
3580 to avoid a timing attack. Applications that don't want it can call
3581 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3582 They would be ill-advised to do so in most cases.
3583 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3585 *) Change RSA blinding code so that it works when the PRNG is not
3586 seeded (in this case, the secret RSA exponent is abused as
3587 an unpredictable seed -- if it is not unpredictable, there
3588 is no point in blinding anyway). Make RSA blinding thread-safe
3589 by remembering the creator's thread ID in rsa->blinding and
3590 having all other threads use local one-time blinding factors
3591 (this requires more computation than sharing rsa->blinding, but
3592 avoids excessive locking; and if an RSA object is not shared
3593 between threads, blinding will still be very fast).
3596 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3597 ENGINE as defaults for all supported algorithms irrespective of
3598 the 'flags' parameter. 'flags' is now honoured, so applications
3599 should make sure they are passing it correctly.
3602 *) Target "mingw" now allows native Windows code to be generated in
3603 the Cygwin environment as well as with the MinGW compiler.
3606 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3608 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3609 via timing by performing a MAC computation even if incorrrect
3610 block cipher padding has been found. This is a countermeasure
3611 against active attacks where the attacker has to distinguish
3612 between bad padding and a MAC verification error. (CVE-2003-0078)
3614 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3615 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3616 Martin Vuagnoux (EPFL, Ilion)]
3618 *) Make the no-err option work as intended. The intention with no-err
3619 is not to have the whole error stack handling routines removed from
3620 libcrypto, it's only intended to remove all the function name and
3621 reason texts, thereby removing some of the footprint that may not
3622 be interesting if those errors aren't displayed anyway.
3624 NOTE: it's still possible for any application or module to have it's
3625 own set of error texts inserted. The routines are there, just not
3626 used by default when no-err is given.
3629 *) Add support for FreeBSD on IA64.
3630 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3632 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3633 Kerberos function mit_des_cbc_cksum(). Before this change,
3634 the value returned by DES_cbc_cksum() was like the one from
3635 mit_des_cbc_cksum(), except the bytes were swapped.
3636 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3638 *) Allow an application to disable the automatic SSL chain building.
3639 Before this a rather primitive chain build was always performed in
3640 ssl3_output_cert_chain(): an application had no way to send the
3641 correct chain if the automatic operation produced an incorrect result.
3643 Now the chain builder is disabled if either:
3645 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3647 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3649 The reasoning behind this is that an application would not want the
3650 auto chain building to take place if extra chain certificates are
3651 present and it might also want a means of sending no additional
3652 certificates (for example the chain has two certificates and the
3656 *) Add the possibility to build without the ENGINE framework.
3657 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3659 *) Under Win32 gmtime() can return NULL: check return value in
3660 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3663 *) DSA routines: under certain error conditions uninitialized BN objects
3664 could be freed. Solution: make sure initialization is performed early
3665 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3666 Nils Larsch <nla@trustcenter.de> via PR#459)
3669 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3670 checked on reconnect on the client side, therefore session resumption
3671 could still fail with a "ssl session id is different" error. This
3672 behaviour is masked when SSL_OP_ALL is used due to
3673 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3674 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3675 followup to PR #377.
3678 *) IA-32 assembler support enhancements: unified ELF targets, support
3679 for SCO/Caldera platforms, fix for Cygwin shared build.
3682 *) Add support for FreeBSD on sparc64. As a consequence, support for
3683 FreeBSD on non-x86 processors is separate from x86 processors on
3684 the config script, much like the NetBSD support.
3685 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3687 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3689 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3692 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3693 code (06) was taken as the first octet of the session ID and the last
3694 octet was ignored consequently. As a result SSLv2 client side session
3695 caching could not have worked due to the session ID mismatch between
3697 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3701 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3702 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3706 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3707 seems that in spite of existing for more than a year, many application
3708 author have done nothing to provide the necessary callbacks, which
3709 means that this particular engine will not work properly anywhere.
3710 This is a very unfortunate situation which forces us, in the name
3711 of usability, to give the hw_ncipher.c a static lock, which is part
3713 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3714 appear in 0.9.8 or later. We EXPECT application authors to have
3715 dealt properly with this when 0.9.8 is released (unless we actually
3716 make such changes in the libcrypto locking code that changes will
3717 have to be made anyway).
3720 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3721 octets have been read, EOF or an error occurs. Without this change
3722 some truncated ASN1 structures will not produce an error.
3725 *) Disable Heimdal support, since it hasn't been fully implemented.
3726 Still give the possibility to force the use of Heimdal, but with
3727 warnings and a request that patches get sent to openssl-dev.
3730 *) Add the VC-CE target, introduce the WINCE sysname, and add
3731 INSTALL.WCE and appropriate conditionals to make it build.
3732 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3734 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3735 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3736 edit numbers of the version.
3737 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3739 *) Introduce safe string copy and catenation functions
3740 (BUF_strlcpy() and BUF_strlcat()).
3741 [Ben Laurie (CHATS) and Richard Levitte]
3743 *) Avoid using fixed-size buffers for one-line DNs.
3744 [Ben Laurie (CHATS)]
3746 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3747 resizing buffers containing secrets, and use where appropriate.
3748 [Ben Laurie (CHATS)]
3750 *) Avoid using fixed size buffers for configuration file location.
3751 [Ben Laurie (CHATS)]
3753 *) Avoid filename truncation for various CA files.
3754 [Ben Laurie (CHATS)]
3756 *) Use sizeof in preference to magic numbers.
3757 [Ben Laurie (CHATS)]
3759 *) Avoid filename truncation in cert requests.
3760 [Ben Laurie (CHATS)]
3762 *) Add assertions to check for (supposedly impossible) buffer
3764 [Ben Laurie (CHATS)]
3766 *) Don't cache truncated DNS entries in the local cache (this could
3767 potentially lead to a spoofing attack).
3768 [Ben Laurie (CHATS)]
3770 *) Fix various buffers to be large enough for hex/decimal
3771 representations in a platform independent manner.
3772 [Ben Laurie (CHATS)]
3774 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3775 resizing buffers containing secrets, and use where appropriate.
3776 [Ben Laurie (CHATS)]
3778 *) Add BIO_indent() to avoid much slightly worrying code to do
3780 [Ben Laurie (CHATS)]
3782 *) Convert sprintf()/BIO_puts() to BIO_printf().
3783 [Ben Laurie (CHATS)]
3785 *) buffer_gets() could terminate with the buffer only half
3787 [Ben Laurie (CHATS)]
3789 *) Add assertions to prevent user-supplied crypto functions from
3790 overflowing internal buffers by having large block sizes, etc.
3791 [Ben Laurie (CHATS)]
3793 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3795 [Ben Laurie (CHATS)]
3797 *) Eliminate unused copy of key in RC4.
3798 [Ben Laurie (CHATS)]
3800 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3801 [Ben Laurie (CHATS)]
3803 *) Fix off-by-one error in EGD path.
3804 [Ben Laurie (CHATS)]
3806 *) If RANDFILE path is too long, ignore instead of truncating.
3807 [Ben Laurie (CHATS)]
3809 *) Eliminate unused and incorrectly sized X.509 structure
3811 [Ben Laurie (CHATS)]
3813 *) Eliminate unused and dangerous function knumber().
3814 [Ben Laurie (CHATS)]
3816 *) Eliminate unused and dangerous structure, KSSL_ERR.
3817 [Ben Laurie (CHATS)]
3819 *) Protect against overlong session ID context length in an encoded
3820 session object. Since these are local, this does not appear to be
3822 [Ben Laurie (CHATS)]
3824 *) Change from security patch (see 0.9.6e below) that did not affect
3825 the 0.9.6 release series:
3827 Remote buffer overflow in SSL3 protocol - an attacker could
3828 supply an oversized master key in Kerberos-enabled versions.
3830 [Ben Laurie (CHATS)]
3832 *) Change the SSL kerb5 codes to match RFC 2712.
3835 *) Make -nameopt work fully for req and add -reqopt switch.
3836 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3838 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3839 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3841 *) Make sure tests can be performed even if the corresponding algorithms
3842 have been removed entirely. This was also the last step to make
3843 OpenSSL compilable with DJGPP under all reasonable conditions.
3844 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3846 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3847 to allow version independent disabling of normally unselected ciphers,
3848 which may be activated as a side-effect of selecting a single cipher.
3850 (E.g., cipher list string "RSA" enables ciphersuites that are left
3851 out of "ALL" because they do not provide symmetric encryption.
3852 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3853 [Lutz Jaenicke, Bodo Moeller]
3855 *) Add appropriate support for separate platform-dependent build
3856 directories. The recommended way to make a platform-dependent
3857 build directory is the following (tested on Linux), maybe with
3860 # Place yourself outside of the OpenSSL source tree. In
3861 # this example, the environment variable OPENSSL_SOURCE
3862 # is assumed to contain the absolute OpenSSL source directory.
3863 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3864 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3865 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3866 mkdir -p `dirname $F`
3867 ln -s $OPENSSL_SOURCE/$F $F
3870 To be absolutely sure not to disturb the source tree, a "make clean"
3871 is a good thing. If it isn't successfull, don't worry about it,
3872 it probably means the source directory is very clean.
3875 *) Make sure any ENGINE control commands make local copies of string
3876 pointers passed to them whenever necessary. Otherwise it is possible
3877 the caller may have overwritten (or deallocated) the original string
3878 data when a later ENGINE operation tries to use the stored values.
3879 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3881 *) Improve diagnostics in file reading and command-line digests.
3882 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3884 *) Add AES modes CFB and OFB to the object database. Correct an
3885 error in AES-CFB decryption.
3888 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3889 allows existing EVP_CIPHER_CTX structures to be reused after
3890 calling EVP_*Final(). This behaviour is used by encryption
3891 BIOs and some applications. This has the side effect that
3892 applications must explicitly clean up cipher contexts with
3893 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3896 *) Check the values of dna and dnb in bn_mul_recursive before calling
3897 bn_mul_comba (a non zero value means the a or b arrays do not contain
3898 n2 elements) and fallback to bn_mul_normal if either is not zero.
3901 *) Fix escaping of non-ASCII characters when using the -subj option
3902 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3905 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3906 form for "surname", serialNumber has no short form.
3907 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3908 therefore remove "mail" short name for "internet 7".
3909 The OID for unique identifiers in X509 certificates is
3910 x500UniqueIdentifier, not uniqueIdentifier.
3911 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3914 *) Add an "init" command to the ENGINE config module and auto initialize
3915 ENGINEs. Without any "init" command the ENGINE will be initialized
3916 after all ctrl commands have been executed on it. If init=1 the
3917 ENGINE is initailized at that point (ctrls before that point are run
3918 on the uninitialized ENGINE and after on the initialized one). If
3919 init=0 then the ENGINE will not be iniatialized at all.
3922 *) Fix the 'app_verify_callback' interface so that the user-defined
3923 argument is actually passed to the callback: In the
3924 SSL_CTX_set_cert_verify_callback() prototype, the callback
3925 declaration has been changed from
3928 int (*cb)(X509_STORE_CTX *,void *);
3929 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3930 i=s->ctx->app_verify_callback(&ctx)
3931 has been changed into
3932 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3934 To update applications using SSL_CTX_set_cert_verify_callback(),
3935 a dummy argument can be added to their callback functions.
3936 [D. K. Smetters <smetters@parc.xerox.com>]
3938 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3939 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3941 *) Add and OPENSSL_LOAD_CONF define which will cause
3942 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3943 This allows older applications to transparently support certain
3944 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3945 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3946 load the config file and OPENSSL_add_all_algorithms_conf() which will
3947 always load it have also been added.
3950 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3951 Adjust NIDs and EVP layer.
3952 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3954 *) Config modules support in openssl utility.
3956 Most commands now load modules from the config file,
3957 though in a few (such as version) this isn't done
3958 because it couldn't be used for anything.
3960 In the case of ca and req the config file used is
3961 the same as the utility itself: that is the -config
3962 command line option can be used to specify an
3966 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3967 use "openssl_conf" if filename is NULL use default openssl config file.
3970 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3971 config section name. Add a new flag to tolerate a missing config file
3972 and move code to CONF_modules_load_file().
3975 *) Support for crypto accelerator cards from Accelerated Encryption
3976 Processing, www.aep.ie. (Use engine 'aep')
3977 The support was copied from 0.9.6c [engine] and adapted/corrected
3978 to work with the new engine framework.
3979 [AEP Inc. and Richard Levitte]
3981 *) Support for SureWare crypto accelerator cards from Baltimore
3982 Technologies. (Use engine 'sureware')
3983 The support was copied from 0.9.6c [engine] and adapted
3984 to work with the new engine framework.
3987 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3988 make the newer ENGINE framework commands for the CHIL engine work.
3989 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3991 *) Make it possible to produce shared libraries on ReliantUNIX.
3992 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3994 *) Add the configuration target debug-linux-ppro.
3995 Make 'openssl rsa' use the general key loading routines
3996 implemented in apps.c, and make those routines able to
3997 handle the key format FORMAT_NETSCAPE and the variant
3999 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4001 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4002 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4004 *) Add -keyform to rsautl, and document -engine.
4005 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
4007 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
4008 BIO_R_NO_SUCH_FILE error code rather than the generic
4009 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
4012 *) Add new functions
4014 ERR_peek_last_error_line
4015 ERR_peek_last_error_line_data.
4016 These are similar to
4019 ERR_peek_error_line_data,
4020 but report on the latest error recorded rather than the first one
4021 still in the error queue.
4022 [Ben Laurie, Bodo Moeller]
4024 *) default_algorithms option in ENGINE config module. This allows things
4026 default_algorithms = ALL
4027 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
4030 *) Prelminary ENGINE config module.
4033 *) New experimental application configuration code.
4036 *) Change the AES code to follow the same name structure as all other
4037 symmetric ciphers, and behave the same way. Move everything to
4038 the directory crypto/aes, thereby obsoleting crypto/rijndael.
4039 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4041 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
4042 [Ben Laurie and Theo de Raadt]
4044 *) Add option to output public keys in req command.
4045 [Massimiliano Pala madwolf@openca.org]
4047 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
4048 (up to about 10% better than before for P-192 and P-224).
4051 *) New functions/macros
4053 SSL_CTX_set_msg_callback(ctx, cb)
4054 SSL_CTX_set_msg_callback_arg(ctx, arg)
4055 SSL_set_msg_callback(ssl, cb)
4056 SSL_set_msg_callback_arg(ssl, arg)
4058 to request calling a callback function
4060 void cb(int write_p, int version, int content_type,
4061 const void *buf, size_t len, SSL *ssl, void *arg)
4063 whenever a protocol message has been completely received
4064 (write_p == 0) or sent (write_p == 1). Here 'version' is the
4065 protocol version according to which the SSL library interprets
4066 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
4067 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
4068 the content type as defined in the SSL 3.0/TLS 1.0 protocol
4069 specification (change_cipher_spec(20), alert(21), handshake(22)).
4070 'buf' and 'len' point to the actual message, 'ssl' to the
4071 SSL object, and 'arg' is the application-defined value set by
4072 SSL[_CTX]_set_msg_callback_arg().
4074 'openssl s_client' and 'openssl s_server' have new '-msg' options
4075 to enable a callback that displays all protocol messages.
4078 *) Change the shared library support so shared libraries are built as
4079 soon as the corresponding static library is finished, and thereby get
4080 openssl and the test programs linked against the shared library.
4081 This still only happens when the keyword "shard" has been given to
4082 the configuration scripts.
4084 NOTE: shared library support is still an experimental thing, and
4085 backward binary compatibility is still not guaranteed.
4086 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
4088 *) Add support for Subject Information Access extension.
4089 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4091 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
4092 additional bytes when new memory had to be allocated, not just
4093 when reusing an existing buffer.
4096 *) New command line and configuration option 'utf8' for the req command.
4097 This allows field values to be specified as UTF8 strings.
4100 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
4101 runs for the former and machine-readable output for the latter.
4104 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
4105 of the e-mail address in the DN (i.e., it will go into a certificate
4106 extension only). The new configuration file option 'email_in_dn = no'
4107 has the same effect.
4108 [Massimiliano Pala madwolf@openca.org]
4110 *) Change all functions with names starting with des_ to be starting
4111 with DES_ instead. Add wrappers that are compatible with libdes,
4112 but are named _ossl_old_des_*. Finally, add macros that map the
4113 des_* symbols to the corresponding _ossl_old_des_* if libdes
4114 compatibility is desired. If OpenSSL 0.9.6c compatibility is
4115 desired, the des_* symbols will be mapped to DES_*, with one
4118 Since we provide two compatibility mappings, the user needs to
4119 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
4120 compatibility is desired. The default (i.e., when that macro
4121 isn't defined) is OpenSSL 0.9.6c compatibility.
4123 There are also macros that enable and disable the support of old
4124 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
4125 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
4126 are defined, the default will apply: to support the old des routines.
4128 In either case, one must include openssl/des.h to get the correct
4129 definitions. Do not try to just include openssl/des_old.h, that
4132 NOTE: This is a major break of an old API into a new one. Software
4133 authors are encouraged to switch to the DES_ style functions. Some
4134 time in the future, des_old.h and the libdes compatibility functions
4135 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
4136 default), and then completely removed.
4139 *) Test for certificates which contain unsupported critical extensions.
4140 If such a certificate is found during a verify operation it is
4141 rejected by default: this behaviour can be overridden by either
4142 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
4143 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
4144 X509_supported_extension() has also been added which returns 1 if a
4145 particular extension is supported.
4148 *) Modify the behaviour of EVP cipher functions in similar way to digests
4149 to retain compatibility with existing code.
4152 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
4153 compatibility with existing code. In particular the 'ctx' parameter does
4154 not have to be to be initialized before the call to EVP_DigestInit() and
4155 it is tidied up after a call to EVP_DigestFinal(). New function
4156 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
4157 EVP_MD_CTX_copy() changed to not require the destination to be
4158 initialized valid and new function EVP_MD_CTX_copy_ex() added which
4159 requires the destination to be valid.
4161 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
4162 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
4165 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
4166 so that complete 'Handshake' protocol structures are kept in memory
4167 instead of overwriting 'msg_type' and 'length' with 'body' data.
4170 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
4171 [Massimo Santin via Richard Levitte]
4173 *) Major restructuring to the underlying ENGINE code. This includes
4174 reduction of linker bloat, separation of pure "ENGINE" manipulation
4175 (initialisation, etc) from functionality dealing with implementations
4176 of specific crypto iterfaces. This change also introduces integrated
4177 support for symmetric ciphers and digest implementations - so ENGINEs
4178 can now accelerate these by providing EVP_CIPHER and EVP_MD
4179 implementations of their own. This is detailed in crypto/engine/README
4180 as it couldn't be adequately described here. However, there are a few
4181 API changes worth noting - some RSA, DSA, DH, and RAND functions that
4182 were changed in the original introduction of ENGINE code have now
4183 reverted back - the hooking from this code to ENGINE is now a good
4184 deal more passive and at run-time, operations deal directly with
4185 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
4186 dereferencing through an ENGINE pointer any more. Also, the ENGINE
4187 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
4188 they were not being used by the framework as there is no concept of a
4189 BIGNUM_METHOD and they could not be generalised to the new
4190 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
4191 ENGINE_cpy() has been removed as it cannot be consistently defined in
4195 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
4198 *) Change mkdef.pl to sort symbols that get the same entry number,
4199 and make sure the automatically generated functions ERR_load_*
4200 become part of libeay.num as well.
4203 *) New function SSL_renegotiate_pending(). This returns true once
4204 renegotiation has been requested (either SSL_renegotiate() call
4205 or HelloRequest/ClientHello receveived from the peer) and becomes
4206 false once a handshake has been completed.
4207 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
4208 sends a HelloRequest, but does not ensure that a handshake takes
4209 place. SSL_renegotiate_pending() is useful for checking if the
4210 client has followed the request.)
4213 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
4214 By default, clients may request session resumption even during
4215 renegotiation (if session ID contexts permit); with this option,
4216 session resumption is possible only in the first handshake.
4218 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
4219 more bits available for options that should not be part of
4220 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
4223 *) Add some demos for certificate and certificate request creation.
4226 *) Make maximum certificate chain size accepted from the peer application
4227 settable (SSL*_get/set_max_cert_list()), as proposed by
4228 "Douglas E. Engert" <deengert@anl.gov>.
4231 *) Add support for shared libraries for Unixware-7
4232 (Boyd Lynn Gerber <gerberb@zenez.com>).
4235 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
4236 be done prior to destruction. Use this to unload error strings from
4237 ENGINEs that load their own error strings. NB: This adds two new API
4238 functions to "get" and "set" this destroy handler in an ENGINE.
4241 *) Alter all existing ENGINE implementations (except "openssl" and
4242 "openbsd") to dynamically instantiate their own error strings. This
4243 makes them more flexible to be built both as statically-linked ENGINEs
4244 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
4245 Also, add stub code to each that makes building them as self-contained
4246 shared-libraries easier (see README.ENGINE).
4249 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
4250 implementations into applications that are completely implemented in
4251 self-contained shared-libraries. The "dynamic" ENGINE exposes control
4252 commands that can be used to configure what shared-library to load and
4253 to control aspects of the way it is handled. Also, made an update to
4254 the README.ENGINE file that brings its information up-to-date and
4255 provides some information and instructions on the "dynamic" ENGINE
4256 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4259 *) Make it possible to unload ranges of ERR strings with a new
4260 "ERR_unload_strings" function.
4263 *) Add a copy() function to EVP_MD.
4266 *) Make EVP_MD routines take a context pointer instead of just the
4267 md_data void pointer.
4270 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4271 that the digest can only process a single chunk of data
4272 (typically because it is provided by a piece of
4273 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4274 is only going to provide a single chunk of data, and hence the
4275 framework needn't accumulate the data for oneshot drivers.
4278 *) As with "ERR", make it possible to replace the underlying "ex_data"
4279 functions. This change also alters the storage and management of global
4280 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4281 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4282 index counters. The API functions that use this state have been changed
4283 to take a "class_index" rather than pointers to the class's local STACK
4284 and counter, and there is now an API function to dynamically create new
4285 classes. This centralisation allows us to (a) plug a lot of the
4286 thread-safety problems that existed, and (b) makes it possible to clean
4287 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4288 such data would previously have always leaked in application code and
4289 workarounds were in place to make the memory debugging turn a blind eye
4290 to it. Application code that doesn't use this new function will still
4291 leak as before, but their memory debugging output will announce it now
4292 rather than letting it slide.
4294 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4295 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4296 has a return value to indicate success or failure.
4299 *) Make it possible to replace the underlying "ERR" functions such that the
4300 global state (2 LHASH tables and 2 locks) is only used by the "default"
4301 implementation. This change also adds two functions to "get" and "set"
4302 the implementation prior to it being automatically set the first time
4303 any other ERR function takes place. Ie. an application can call "get",
4304 pass the return value to a module it has just loaded, and that module
4305 can call its own "set" function using that value. This means the
4306 module's "ERR" operations will use (and modify) the error state in the
4307 application and not in its own statically linked copy of OpenSSL code.
4310 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4311 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4312 the operation, and provides a more encapsulated way for external code
4313 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4314 to use these functions rather than manually incrementing the counts.
4316 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4319 *) Add EVP test program.
4322 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4325 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4326 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4327 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4328 These allow a CRL to be built without having to access X509_CRL fields
4329 directly. Modify 'ca' application to use new functions.
4332 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4333 bug workarounds. Rollback attack detection is a security feature.
4334 The problem will only arise on OpenSSL servers when TLSv1 is not
4335 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4336 Software authors not wanting to support TLSv1 will have special reasons
4337 for their choice and can explicitly enable this option.
4338 [Bodo Moeller, Lutz Jaenicke]
4340 *) Rationalise EVP so it can be extended: don't include a union of
4341 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4342 (similar to those existing for EVP_CIPHER_CTX).
4347 EVP_MD_CTX_init(&md); /* new function call */
4348 EVP_DigestInit(&md, EVP_sha1());
4349 EVP_DigestUpdate(&md, in, len);
4350 EVP_DigestFinal(&md, out, NULL);
4351 EVP_MD_CTX_cleanup(&md); /* new function call */
4355 *) Make DES key schedule conform to the usual scheme, as well as
4356 correcting its structure. This means that calls to DES functions
4357 now have to pass a pointer to a des_key_schedule instead of a
4358 plain des_key_schedule (which was actually always a pointer
4361 des_key_schedule ks;
4363 des_set_key_checked(..., &ks);
4364 des_ncbc_encrypt(..., &ks, ...);
4366 (Note that a later change renames 'des_...' into 'DES_...'.)
4369 *) Initial reduction of linker bloat: the use of some functions, such as
4370 PEM causes large amounts of unused functions to be linked in due to
4371 poor organisation. For example pem_all.c contains every PEM function
4372 which has a knock on effect of linking in large amounts of (unused)
4373 ASN1 code. Grouping together similar functions and splitting unrelated
4374 functions prevents this.
4377 *) Cleanup of EVP macros.
4380 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4381 correct _ecb suffix.
4384 *) Add initial OCSP responder support to ocsp application. The
4385 revocation information is handled using the text based index
4386 use by the ca application. The responder can either handle
4387 requests generated internally, supplied in files (for example
4388 via a CGI script) or using an internal minimal server.
4391 *) Add configuration choices to get zlib compression for TLS.
4394 *) Changes to Kerberos SSL for RFC 2712 compliance:
4395 1. Implemented real KerberosWrapper, instead of just using
4396 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4397 2. Implemented optional authenticator field of KerberosWrapper.
4399 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4400 and authenticator structs; see crypto/krb5/.
4402 Generalized Kerberos calls to support multiple Kerberos libraries.
4403 [Vern Staats <staatsvr@asc.hpc.mil>,
4404 Jeffrey Altman <jaltman@columbia.edu>
4405 via Richard Levitte]
4407 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4408 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4409 values for each of the key sizes rather than having just
4410 parameters (and 'speed' generating keys each time).
4413 *) Speed up EVP routines.
4416 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4417 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4418 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4419 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4421 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4422 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4423 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4426 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4428 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4431 *) Added the OS2-EMX target.
4432 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4434 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4435 to support NCONF routines in extension code. New function CONF_set_nconf()
4436 to allow functions which take an NCONF to also handle the old LHASH
4437 structure: this means that the old CONF compatible routines can be
4438 retained (in particular wrt extensions) without having to duplicate the
4439 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4442 *) Enhance the general user interface with mechanisms for inner control
4443 and with possibilities to have yes/no kind of prompts.
4446 *) Change all calls to low level digest routines in the library and
4447 applications to use EVP. Add missing calls to HMAC_cleanup() and
4448 don't assume HMAC_CTX can be copied using memcpy().
4449 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4451 *) Add the possibility to control engines through control names but with
4452 arbitrary arguments instead of just a string.
4453 Change the key loaders to take a UI_METHOD instead of a callback
4454 function pointer. NOTE: this breaks binary compatibility with earlier
4455 versions of OpenSSL [engine].
4456 Adapt the nCipher code for these new conditions and add a card insertion
4460 *) Enhance the general user interface with mechanisms to better support
4461 dialog box interfaces, application-defined prompts, the possibility
4462 to use defaults (for example default passwords from somewhere else)
4463 and interrupts/cancellations.
4466 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4467 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4470 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4471 tidy up some unnecessarily weird code in 'sk_new()').
4472 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4474 *) Change the key loading routines for ENGINEs to use the same kind
4475 callback (pem_password_cb) as all other routines that need this
4479 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4480 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4481 than this minimum value is recommended.
4484 *) New random seeder for OpenVMS, using the system process statistics
4485 that are easily reachable.
4488 *) Windows apparently can't transparently handle global
4489 variables defined in DLLs. Initialisations such as:
4491 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4493 wont compile. This is used by the any applications that need to
4494 declare their own ASN1 modules. This was fixed by adding the option
4495 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4496 needed for static libraries under Win32.
4499 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4500 setting of purpose and trust fields. New X509_STORE trust and
4501 purpose functions and tidy up setting in other SSL functions.
4504 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4505 structure. These are inherited by X509_STORE_CTX when it is
4506 initialised. This allows various defaults to be set in the
4507 X509_STORE structure (such as flags for CRL checking and custom
4508 purpose or trust settings) for functions which only use X509_STORE_CTX
4509 internally such as S/MIME.
4511 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4512 trust settings if they are not set in X509_STORE. This allows X509_STORE
4513 purposes and trust (in S/MIME for example) to override any set by default.
4515 Add command line options for CRL checking to smime, s_client and s_server
4519 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4520 are set then the CRL is looked up in the X509_STORE structure and
4521 its validity and signature checked, then if the certificate is found
4522 in the CRL the verify fails with a revoked error.
4524 Various new CRL related callbacks added to X509_STORE_CTX structure.
4526 Command line options added to 'verify' application to support this.
4528 This needs some additional work, such as being able to handle multiple
4529 CRLs with different times, extension based lookup (rather than just
4530 by subject name) and ultimately more complete V2 CRL extension
4534 *) Add a general user interface API (crypto/ui/). This is designed
4535 to replace things like des_read_password and friends (backward
4536 compatibility functions using this new API are provided).
4537 The purpose is to remove prompting functions from the DES code
4538 section as well as provide for prompting through dialog boxes in
4539 a window system and the like.
4542 *) Add "ex_data" support to ENGINE so implementations can add state at a
4543 per-structure level rather than having to store it globally.
4546 *) Make it possible for ENGINE structures to be copied when retrieved by
4547 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4548 This causes the "original" ENGINE structure to act like a template,
4549 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4550 operational state can be localised to each ENGINE structure, despite the
4551 fact they all share the same "methods". New ENGINE structures returned in
4552 this case have no functional references and the return value is the single
4553 structural reference. This matches the single structural reference returned
4554 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4558 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4559 needs to match any other type at all we need to manually clear the
4563 *) Changes to the "openssl engine" utility to include;
4564 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4565 about an ENGINE's available control commands.
4566 - executing control commands from command line arguments using the
4567 '-pre' and '-post' switches. '-post' is only used if '-t' is
4568 specified and the ENGINE is successfully initialised. The syntax for
4569 the individual commands are colon-separated, for example;
4570 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4573 *) New dynamic control command support for ENGINEs. ENGINEs can now
4574 declare their own commands (numbers), names (strings), descriptions,
4575 and input types for run-time discovery by calling applications. A
4576 subset of these commands are implicitly classed as "executable"
4577 depending on their input type, and only these can be invoked through
4578 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4579 can be based on user input, config files, etc). The distinction is
4580 that "executable" commands cannot return anything other than a boolean
4581 result and can only support numeric or string input, whereas some
4582 discoverable commands may only be for direct use through
4583 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4584 pointers, or other custom uses. The "executable" commands are to
4585 support parameterisations of ENGINE behaviour that can be
4586 unambiguously defined by ENGINEs and used consistently across any
4587 OpenSSL-based application. Commands have been added to all the
4588 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4589 control over shared-library paths without source code alterations.
4592 *) Changed all ENGINE implementations to dynamically allocate their
4593 ENGINEs rather than declaring them statically. Apart from this being
4594 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4595 this also allows the implementations to compile without using the
4596 internal engine_int.h header.
4599 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4600 'const' value. Any code that should be able to modify a RAND_METHOD
4601 should already have non-const pointers to it (ie. they should only
4602 modify their own ones).
4605 *) Made a variety of little tweaks to the ENGINE code.
4606 - "atalla" and "ubsec" string definitions were moved from header files
4607 to C code. "nuron" string definitions were placed in variables
4608 rather than hard-coded - allowing parameterisation of these values
4609 later on via ctrl() commands.
4610 - Removed unused "#if 0"'d code.
4611 - Fixed engine list iteration code so it uses ENGINE_free() to release
4612 structural references.
4613 - Constified the RAND_METHOD element of ENGINE structures.
4614 - Constified various get/set functions as appropriate and added
4615 missing functions (including a catch-all ENGINE_cpy that duplicates
4616 all ENGINE values onto a new ENGINE except reference counts/state).
4617 - Removed NULL parameter checks in get/set functions. Setting a method
4618 or function to NULL is a way of cancelling out a previously set
4619 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4620 and doesn't justify the extra error symbols and code.
4621 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4622 flags from engine_int.h to engine.h.
4623 - Changed prototypes for ENGINE handler functions (init(), finish(),
4624 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4627 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4628 to the algorithm using long division. The binary algorithm can be
4629 used only if the modulus is odd. On 32-bit systems, it is faster
4630 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4631 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4632 up to 450 bits. In 64-bit environments, the binary algorithm
4633 appears to be advantageous for much longer moduli; here we use it
4634 for moduli up to 2048 bits.
4637 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4638 could not support the combine flag in choice fields.
4641 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4642 extensions from a certificate request to the certificate.
4645 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4646 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4647 file: this allows the display of the certificate about to be
4648 signed to be customised, to allow certain fields to be included
4649 or excluded and extension details. The old system didn't display
4650 multicharacter strings properly, omitted fields not in the policy
4651 and couldn't display additional details such as extensions.
4654 *) Function EC_POINTs_mul for multiple scalar multiplication
4655 of an arbitrary number of elliptic curve points
4656 \sum scalars[i]*points[i],
4657 optionally including the generator defined for the EC_GROUP:
4658 scalar*generator + \sum scalars[i]*points[i].
4660 EC_POINT_mul is a simple wrapper function for the typical case
4661 that the point list has just one item (besides the optional
4665 *) First EC_METHODs for curves over GF(p):
4667 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4668 operations and provides various method functions that can also
4669 operate with faster implementations of modular arithmetic.
4671 EC_GFp_mont_method() reuses most functions that are part of
4672 EC_GFp_simple_method, but uses Montgomery arithmetic.
4674 [Bodo Moeller; point addition and point doubling
4675 implementation directly derived from source code provided by
4676 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4678 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4679 crypto/ec/ec_lib.c):
4681 Curves are EC_GROUP objects (with an optional group generator)
4682 based on EC_METHODs that are built into the library.
4684 Points are EC_POINT objects based on EC_GROUP objects.
4686 Most of the framework would be able to handle curves over arbitrary
4687 finite fields, but as there are no obvious types for fields other
4688 than GF(p), some functions are limited to that for now.
4691 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4692 that the file contains a complete HTTP response.
4695 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4696 change the def and num file printf format specifier from "%-40sXXX"
4697 to "%-39s XXX". The latter will always guarantee a space after the
4698 field while the former will cause them to run together if the field
4699 is 40 of more characters long.
4702 *) Constify the cipher and digest 'method' functions and structures
4703 and modify related functions to take constant EVP_MD and EVP_CIPHER
4707 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4708 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4711 *) Modify EVP_Digest*() routines so they now return values. Although the
4712 internal software routines can never fail additional hardware versions
4716 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4718 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4719 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4722 ERR_R_NESTED_ASN1_ERROR
4724 ERR_R_MISSING_ASN1_EOS
4725 were 4 .. 9, conflicting with
4726 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4728 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4729 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4731 Add new error code 'ERR_R_INTERNAL_ERROR'.
4734 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4738 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4739 sets the subject name for a new request or supersedes the
4740 subject name in a given request. Formats that can be parsed are
4741 'CN=Some Name, OU=myOU, C=IT'
4743 'CN=Some Name/OU=myOU/C=IT'.
4745 Add options '-batch' and '-verbose' to 'openssl req'.
4746 [Massimiliano Pala <madwolf@hackmasters.net>]
4748 *) Introduce the possibility to access global variables through
4749 functions on platform were that's the best way to handle exporting
4750 global variables in shared libraries. To enable this functionality,
4751 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4752 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4753 is normally done by Configure or something similar).
4755 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4756 in the source file (foo.c) like this:
4758 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4759 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4761 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4762 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4764 OPENSSL_DECLARE_GLOBAL(int,foo);
4765 #define foo OPENSSL_GLOBAL_REF(foo)
4766 OPENSSL_DECLARE_GLOBAL(double,bar);
4767 #define bar OPENSSL_GLOBAL_REF(bar)
4769 The #defines are very important, and therefore so is including the
4770 header file everywhere where the defined globals are used.
4772 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4773 of ASN.1 items, but that structure is a bit different.
4775 The largest change is in util/mkdef.pl which has been enhanced with
4776 better and easier to understand logic to choose which symbols should
4777 go into the Windows .def files as well as a number of fixes and code
4778 cleanup (among others, algorithm keywords are now sorted
4779 lexicographically to avoid constant rewrites).
4782 *) In BN_div() keep a copy of the sign of 'num' before writing the
4783 result to 'rm' because if rm==num the value will be overwritten
4784 and produce the wrong result if 'num' is negative: this caused
4785 problems with BN_mod() and BN_nnmod().
4788 *) Function OCSP_request_verify(). This checks the signature on an
4789 OCSP request and verifies the signer certificate. The signer
4790 certificate is just checked for a generic purpose and OCSP request
4794 *) Add OCSP_check_validity() function to check the validity of OCSP
4795 responses. OCSP responses are prepared in real time and may only
4796 be a few seconds old. Simply checking that the current time lies
4797 between thisUpdate and nextUpdate max reject otherwise valid responses
4798 caused by either OCSP responder or client clock inaccuracy. Instead
4799 we allow thisUpdate and nextUpdate to fall within a certain period of
4800 the current time. The age of the response can also optionally be
4801 checked. Two new options -validity_period and -status_age added to
4805 *) If signature or public key algorithm is unrecognized print out its
4806 OID rather that just UNKNOWN.
4809 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4810 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4811 ID to be generated from the issuer certificate alone which can then be
4812 passed to OCSP_id_issuer_cmp().
4815 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4816 ASN1 modules to export functions returning ASN1_ITEM pointers
4817 instead of the ASN1_ITEM structures themselves. This adds several
4818 new macros which allow the underlying ASN1 function/structure to
4819 be accessed transparently. As a result code should not use ASN1_ITEM
4820 references directly (such as &X509_it) but instead use the relevant
4821 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4822 use of the new ASN1 code on platforms where exporting structures
4823 is problematical (for example in shared libraries) but exporting
4824 functions returning pointers to structures is not.
4827 *) Add support for overriding the generation of SSL/TLS session IDs.
4828 These callbacks can be registered either in an SSL_CTX or per SSL.
4829 The purpose of this is to allow applications to control, if they wish,
4830 the arbitrary values chosen for use as session IDs, particularly as it
4831 can be useful for session caching in multiple-server environments. A
4832 command-line switch for testing this (and any client code that wishes
4833 to use such a feature) has been added to "s_server".
4834 [Geoff Thorpe, Lutz Jaenicke]
4836 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4837 of the form '#if defined(...) || defined(...) || ...' and
4838 '#if !defined(...) && !defined(...) && ...'. This also avoids
4839 the growing number of special cases it was previously handling.
4842 *) Make all configuration macros available for application by making
4843 sure they are available in opensslconf.h, by giving them names starting
4844 with "OPENSSL_" to avoid conflicts with other packages and by making
4845 sure e_os2.h will cover all platform-specific cases together with
4847 Additionally, it is now possible to define configuration/platform-
4848 specific names (called "system identities"). In the C code, these
4849 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4850 macro with the name beginning with "OPENSSL_SYS_", which is determined
4851 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4855 *) New option -set_serial to 'req' and 'x509' this allows the serial
4856 number to use to be specified on the command line. Previously self
4857 signed certificates were hard coded with serial number 0 and the
4858 CA options of 'x509' had to use a serial number in a file which was
4862 *) New options to 'ca' utility to support V2 CRL entry extensions.
4863 Currently CRL reason, invalidity date and hold instruction are
4864 supported. Add new CRL extensions to V3 code and some new objects.
4867 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4868 disable standard block padding (aka PKCS#5 padding) in the EVP
4869 API, which was previously mandatory. This means that the data is
4870 not padded in any way and so the total length much be a multiple
4871 of the block size, otherwise an error occurs.
4874 *) Initial (incomplete) OCSP SSL support.
4877 *) New function OCSP_parse_url(). This splits up a URL into its host,
4878 port and path components: primarily to parse OCSP URLs. New -url
4879 option to ocsp utility.
4882 *) New nonce behavior. The return value of OCSP_check_nonce() now
4883 reflects the various checks performed. Applications can decide
4884 whether to tolerate certain situations such as an absent nonce
4885 in a response when one was present in a request: the ocsp application
4886 just prints out a warning. New function OCSP_add1_basic_nonce()
4887 this is to allow responders to include a nonce in a response even if
4888 the request is nonce-less.
4891 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4892 skipped when using openssl x509 multiple times on a single input file,
4893 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4896 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4897 set string type: to handle setting ASN1_TIME structures. Fix ca
4898 utility to correctly initialize revocation date of CRLs.
4901 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4902 the clients preferred ciphersuites and rather use its own preferences.
4903 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4904 Internet Explorer by ensuring unchanged hash method during stepup.
4905 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4908 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4909 to aes and add a new 'exist' option to print out symbols that don't
4913 *) Additional options to ocsp utility to allow flags to be set and
4914 additional certificates supplied.
4917 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4918 OCSP client a number of certificate to only verify the response
4922 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4923 handle the new API. Currently only ECB, CBC modes supported. Add new
4926 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4927 Encryption Standard (AES) Ciphersuites for Transport Layer
4928 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4929 not enabled by default and were not part of the "ALL" ciphersuite
4930 alias because they were not yet official; they could be
4931 explicitly requested by specifying the "AESdraft" ciphersuite
4932 group alias. In the final release of OpenSSL 0.9.7, the group
4933 alias is called "AES" and is part of "ALL".)
4934 [Ben Laurie, Steve Henson, Bodo Moeller]
4936 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4937 request to response.
4940 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4941 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4942 extract information from a certificate request. OCSP_response_create()
4943 creates a response and optionally adds a basic response structure.
4944 OCSP_basic_add1_status() adds a complete single response to a basic
4945 response and returns the OCSP_SINGLERESP structure just added (to allow
4946 extensions to be included for example). OCSP_basic_add1_cert() adds a
4947 certificate to a basic response and OCSP_basic_sign() signs a basic
4948 response with various flags. New helper functions ASN1_TIME_check()
4949 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4950 (converts ASN1_TIME to GeneralizedTime).
4953 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4954 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4955 structure from a certificate. X509_pubkey_digest() digests the public_key
4956 contents: this is used in various key identifiers.
4959 *) Make sk_sort() tolerate a NULL argument.
4960 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4962 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4963 passed by the function are trusted implicitly. If any of them signed the
4964 response then it is assumed to be valid and is not verified.
4967 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4968 to data. This was previously part of the PKCS7 ASN1 code. This
4969 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4970 [Steve Henson, reported by Kenneth R. Robinette
4971 <support@securenetterm.com>]
4973 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4974 routines: without these tracing memory leaks is very painful.
4975 Fix leaks in PKCS12 and PKCS7 routines.
4978 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4979 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4980 effectively meant GeneralizedTime would never be used. Now it
4981 is initialised to -1 but X509_time_adj() now has to check the value
4982 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4983 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4984 [Steve Henson, reported by Kenneth R. Robinette
4985 <support@securenetterm.com>]
4987 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4988 result in a zero length in the ASN1_INTEGER structure which was
4989 not consistent with the structure when d2i_ASN1_INTEGER() was used
4990 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4991 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4992 where it did not print out a minus for negative ASN1_INTEGER.
4995 *) Add summary printout to ocsp utility. The various functions which
4996 convert status values to strings have been renamed to:
4997 OCSP_response_status_str(), OCSP_cert_status_str() and
4998 OCSP_crl_reason_str() and are no longer static. New options
4999 to verify nonce values and to disable verification. OCSP response
5000 printout format cleaned up.
5003 *) Add additional OCSP certificate checks. These are those specified
5004 in RFC2560. This consists of two separate checks: the CA of the
5005 certificate being checked must either be the OCSP signer certificate
5006 or the issuer of the OCSP signer certificate. In the latter case the
5007 OCSP signer certificate must contain the OCSP signing extended key
5008 usage. This check is performed by attempting to match the OCSP
5009 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
5010 in the OCSP_CERTID structures of the response.
5013 *) Initial OCSP certificate verification added to OCSP_basic_verify()
5014 and related routines. This uses the standard OpenSSL certificate
5015 verify routines to perform initial checks (just CA validity) and
5016 to obtain the certificate chain. Then additional checks will be
5017 performed on the chain. Currently the root CA is checked to see
5018 if it is explicitly trusted for OCSP signing. This is used to set
5019 a root CA as a global signing root: that is any certificate that
5020 chains to that CA is an acceptable OCSP signing certificate.
5023 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
5024 extensions from a separate configuration file.
5025 As when reading extensions from the main configuration file,
5026 the '-extensions ...' option may be used for specifying the
5028 [Massimiliano Pala <madwolf@comune.modena.it>]
5030 *) New OCSP utility. Allows OCSP requests to be generated or
5031 read. The request can be sent to a responder and the output
5032 parsed, outputed or printed in text form. Not complete yet:
5033 still needs to check the OCSP response validity.
5036 *) New subcommands for 'openssl ca':
5037 'openssl ca -status <serial>' prints the status of the cert with
5038 the given serial number (according to the index file).
5039 'openssl ca -updatedb' updates the expiry status of certificates
5041 [Massimiliano Pala <madwolf@comune.modena.it>]
5043 *) New '-newreq-nodes' command option to CA.pl. This is like
5044 '-newreq', but calls 'openssl req' with the '-nodes' option
5045 so that the resulting key is not encrypted.
5046 [Damien Miller <djm@mindrot.org>]
5048 *) New configuration for the GNU Hurd.
5049 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
5051 *) Initial code to implement OCSP basic response verify. This
5052 is currently incomplete. Currently just finds the signer's
5053 certificate and verifies the signature on the response.
5056 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
5057 value of OPENSSLDIR. This is available via the new '-d' option
5058 to 'openssl version', and is also included in 'openssl version -a'.
5061 *) Allowing defining memory allocation callbacks that will be given
5062 file name and line number information in additional arguments
5063 (a const char* and an int). The basic functionality remains, as
5064 well as the original possibility to just replace malloc(),
5065 realloc() and free() by functions that do not know about these
5066 additional arguments. To register and find out the current
5067 settings for extended allocation functions, the following
5068 functions are provided:
5070 CRYPTO_set_mem_ex_functions
5071 CRYPTO_set_locked_mem_ex_functions
5072 CRYPTO_get_mem_ex_functions
5073 CRYPTO_get_locked_mem_ex_functions
5075 These work the same way as CRYPTO_set_mem_functions and friends.
5076 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
5077 extended allocation function is enabled.
5078 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
5079 a conventional allocation function is enabled.
5080 [Richard Levitte, Bodo Moeller]
5082 *) Finish off removing the remaining LHASH function pointer casts.
5083 There should no longer be any prototype-casting required when using
5084 the LHASH abstraction, and any casts that remain are "bugs". See
5085 the callback types and macros at the head of lhash.h for details
5086 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
5089 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
5090 If /dev/[u]random devices are not available or do not return enough
5091 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
5093 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
5094 /etc/entropy will be queried once each in this sequence, quering stops
5095 when enough entropy was collected without querying more sockets.
5098 *) Change the Unix RAND_poll() variant to be able to poll several
5099 random devices, as specified by DEVRANDOM, until a sufficient amount
5100 of data has been collected. We spend at most 10 ms on each file
5101 (select timeout) and read in non-blocking mode. DEVRANDOM now
5102 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
5103 (previously it was just the string "/dev/urandom"), so on typical
5104 platforms the 10 ms delay will never occur.
5105 Also separate out the Unix variant to its own file, rand_unix.c.
5106 For VMS, there's a currently-empty rand_vms.c.
5109 *) Move OCSP client related routines to ocsp_cl.c. These
5110 provide utility functions which an application needing
5111 to issue a request to an OCSP responder and analyse the
5112 response will typically need: as opposed to those which an
5113 OCSP responder itself would need which will be added later.
5115 OCSP_request_sign() signs an OCSP request with an API similar
5116 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
5117 response. OCSP_response_get1_basic() extracts basic response
5118 from response. OCSP_resp_find_status(): finds and extracts status
5119 information from an OCSP_CERTID structure (which will be created
5120 when the request structure is built). These are built from lower
5121 level functions which work on OCSP_SINGLERESP structures but
5122 wont normally be used unless the application wishes to examine
5123 extensions in the OCSP response for example.
5125 Replace nonce routines with a pair of functions.
5126 OCSP_request_add1_nonce() adds a nonce value and optionally
5127 generates a random value. OCSP_check_nonce() checks the
5128 validity of the nonce in an OCSP response.
5131 *) Change function OCSP_request_add() to OCSP_request_add0_id().
5132 This doesn't copy the supplied OCSP_CERTID and avoids the
5133 need to free up the newly created id. Change return type
5134 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
5135 This can then be used to add extensions to the request.
5136 Deleted OCSP_request_new(), since most of its functionality
5137 is now in OCSP_REQUEST_new() (and the case insensitive name
5138 clash) apart from the ability to set the request name which
5139 will be added elsewhere.
5142 *) Update OCSP API. Remove obsolete extensions argument from
5143 various functions. Extensions are now handled using the new
5144 OCSP extension code. New simple OCSP HTTP function which
5145 can be used to send requests and parse the response.
5148 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
5149 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
5150 uses the special reorder version of SET OF to sort the attributes
5151 and reorder them to match the encoded order. This resolves a long
5152 standing problem: a verify on a PKCS7 structure just after signing
5153 it used to fail because the attribute order did not match the
5154 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
5155 it uses the received order. This is necessary to tolerate some broken
5156 software that does not order SET OF. This is handled by encoding
5157 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
5158 to produce the required SET OF.
5161 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
5162 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
5163 files to get correct declarations of the ASN.1 item variables.
5166 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
5167 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
5168 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
5169 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
5170 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
5171 ASN1_ITEM and no wrapper functions.
5174 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
5175 replace the old function pointer based I/O routines. Change most of
5176 the *_d2i_bio() and *_d2i_fp() functions to use these.
5179 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
5180 lines, recognice more "algorithms" that can be deselected, and make
5181 it complain about algorithm deselection that isn't recognised.
5184 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
5185 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
5186 to use new functions. Add NO_ASN1_OLD which can be set to remove
5187 some old style ASN1 functions: this can be used to determine if old
5188 code will still work when these eventually go away.
5191 *) New extension functions for OCSP structures, these follow the
5192 same conventions as certificates and CRLs.
5195 *) New function X509V3_add1_i2d(). This automatically encodes and
5196 adds an extension. Its behaviour can be customised with various
5197 flags to append, replace or delete. Various wrappers added for
5198 certifcates and CRLs.
5201 *) Fix to avoid calling the underlying ASN1 print routine when
5202 an extension cannot be parsed. Correct a typo in the
5203 OCSP_SERVICELOC extension. Tidy up print OCSP format.
5206 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
5207 entries for variables.
5210 *) Add functionality to apps/openssl.c for detecting locking
5211 problems: As the program is single-threaded, all we have
5212 to do is register a locking callback using an array for
5213 storing which locks are currently held by the program.
5216 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
5217 SSL_get_ex_data_X509_STORE_idx(), which is used in
5218 ssl_verify_cert_chain() and thus can be called at any time
5219 during TLS/SSL handshakes so that thread-safety is essential.
5220 Unfortunately, the ex_data design is not at all suited
5221 for multi-threaded use, so it probably should be abolished.
5224 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
5225 [Broadcom, tweaked and integrated by Geoff Thorpe]
5227 *) Move common extension printing code to new function
5228 X509V3_print_extensions(). Reorganise OCSP print routines and
5229 implement some needed OCSP ASN1 functions. Add OCSP extensions.
5232 *) New function X509_signature_print() to remove duplication in some
5236 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
5237 set (this was treated exactly the same as SET OF previously). This
5238 is used to reorder the STACK representing the structure to match the
5239 encoding. This will be used to get round a problem where a PKCS7
5240 structure which was signed could not be verified because the STACK
5241 order did not reflect the encoded order.
5244 *) Reimplement the OCSP ASN1 module using the new code.
5247 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
5248 for its ASN1 operations. The old style function pointers still exist
5249 for now but they will eventually go away.
5252 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
5253 completely replaces the old ASN1 functionality with a table driven
5254 encoder and decoder which interprets an ASN1_ITEM structure describing
5255 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5256 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5257 has also been converted to the new form.
5260 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5261 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5262 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5263 for negative moduli.
5266 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5267 of not touching the result's sign bit.
5270 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5274 *) Changed the LHASH code to use prototypes for callbacks, and created
5275 macros to declare and implement thin (optionally static) functions
5276 that provide type-safety and avoid function pointer casting for the
5277 type-specific callbacks.
5280 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5282 [Veers Staats <staatsvr@asc.hpc.mil>,
5283 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5285 *) Reformat the FAQ so the different questions and answers can be divided
5286 in sections depending on the subject.
5289 *) Have the zlib compression code load ZLIB.DLL dynamically under
5293 *) New function BN_mod_sqrt for computing square roots modulo a prime
5294 (using the probabilistic Tonelli-Shanks algorithm unless
5295 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5296 be handled deterministically).
5297 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5299 *) Make BN_mod_inverse faster by explicitly handling small quotients
5300 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5301 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5304 *) New function BN_kronecker.
5307 *) Fix BN_gcd so that it works on negative inputs; the result is
5308 positive unless both parameters are zero.
5309 Previously something reasonably close to an infinite loop was
5310 possible because numbers could be growing instead of shrinking
5311 in the implementation of Euclid's algorithm.
5314 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5315 sign of the number in question.
5317 Fix BN_is_word(a,w) to work correctly for w == 0.
5319 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5320 because its test if the absolute value of 'a' equals 'w'.
5321 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5322 it exists mostly for use in the implementations of BN_is_zero(),
5323 BN_is_one(), and BN_is_word().
5326 *) New function BN_swap.
5329 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5330 the exponentiation functions are more likely to produce reasonable
5331 results on negative inputs.
5334 *) Change BN_mod_mul so that the result is always non-negative.
5335 Previously, it could be negative if one of the factors was negative;
5336 I don't think anyone really wanted that behaviour.
5339 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5340 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5341 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5342 and add new functions:
5351 BN_mod_lshift1_quick
5355 These functions always generate non-negative results.
5357 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5358 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5360 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5361 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5362 be reduced modulo m.
5363 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5366 The following entry accidentily appeared in the CHANGES file
5367 distributed with OpenSSL 0.9.7. The modifications described in
5368 it do *not* apply to OpenSSL 0.9.7.
5370 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5371 was actually never needed) and in BN_mul(). The removal in BN_mul()
5372 required a small change in bn_mul_part_recursive() and the addition
5373 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5374 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5375 bn_sub_words() and bn_add_words() except they take arrays with
5380 *) In 'openssl passwd', verify passwords read from the terminal
5381 unless the '-salt' option is used (which usually means that
5382 verification would just waste user's time since the resulting
5383 hash is going to be compared with some given password hash)
5384 or the new '-noverify' option is used.
5386 This is an incompatible change, but it does not affect
5387 non-interactive use of 'openssl passwd' (passwords on the command
5388 line, '-stdin' option, '-in ...' option) and thus should not
5392 *) Remove all references to RSAref, since there's no more need for it.
5395 *) Make DSO load along a path given through an environment variable
5396 (SHLIB_PATH) with shl_load().
5399 *) Constify the ENGINE code as a result of BIGNUM constification.
5400 Also constify the RSA code and most things related to it. In a
5401 few places, most notable in the depth of the ASN.1 code, ugly
5402 casts back to non-const were required (to be solved at a later
5406 *) Make it so the openssl application has all engines loaded by default.
5409 *) Constify the BIGNUM routines a little more.
5412 *) Add the following functions:
5414 ENGINE_load_cswift()
5416 ENGINE_load_atalla()
5418 ENGINE_load_builtin_engines()
5420 That way, an application can itself choose if external engines that
5421 are built-in in OpenSSL shall ever be used or not. The benefit is
5422 that applications won't have to be linked with libdl or other dso
5423 libraries unless it's really needed.
5425 Changed 'openssl engine' to load all engines on demand.
5426 Changed the engine header files to avoid the duplication of some
5427 declarations (they differed!).
5430 *) 'openssl engine' can now list capabilities.
5433 *) Better error reporting in 'openssl engine'.
5436 *) Never call load_dh_param(NULL) in s_server.
5439 *) Add engine application. It can currently list engines by name and
5440 identity, and test if they are actually available.
5443 *) Improve RPM specification file by forcing symbolic linking and making
5444 sure the installed documentation is also owned by root.root.
5445 [Damien Miller <djm@mindrot.org>]
5447 *) Give the OpenSSL applications more possibilities to make use of
5448 keys (public as well as private) handled by engines.
5451 *) Add OCSP code that comes from CertCo.
5454 *) Add VMS support for the Rijndael code.
5457 *) Added untested support for Nuron crypto accelerator.
5460 *) Add support for external cryptographic devices. This code was
5461 previously distributed separately as the "engine" branch.
5462 [Geoff Thorpe, Richard Levitte]
5464 *) Rework the filename-translation in the DSO code. It is now possible to
5465 have far greater control over how a "name" is turned into a filename
5466 depending on the operating environment and any oddities about the
5467 different shared library filenames on each system.
5470 *) Support threads on FreeBSD-elf in Configure.
5473 *) Fix for SHA1 assembly problem with MASM: it produces
5474 warnings about corrupt line number information when assembling
5475 with debugging information. This is caused by the overlapping
5477 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5480 NCONF_get_number() has no error checking at all. As a replacement,
5481 NCONF_get_number_e() is defined (_e for "error checking") and is
5482 promoted strongly. The old NCONF_get_number is kept around for
5483 binary backward compatibility.
5484 Make it possible for methods to load from something other than a BIO,
5485 by providing a function pointer that is given a name instead of a BIO.
5486 For example, this could be used to load configuration data from an
5490 *) Fix for non blocking accept BIOs. Added new I/O special reason
5491 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5492 with non blocking I/O was not possible because no retry code was
5493 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5497 *) Added the beginnings of Rijndael support.
5500 *) Fix for bug in DirectoryString mask setting. Add support for
5501 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5502 to allow certificate printing to more controllable, additional
5503 'certopt' option to 'x509' to allow new printing options to be
5507 *) Clean old EAY MD5 hack from e_os.h.
5510 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5512 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5513 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5514 [Joe Orton, Steve Henson]
5516 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5518 *) Fix additional bug revealed by the NISCC test suite:
5520 Stop bug triggering large recursion when presented with
5521 certain ASN.1 tags (CVE-2003-0851)
5524 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5526 *) Fix various bugs revealed by running the NISCC test suite:
5528 Stop out of bounds reads in the ASN1 code when presented with
5529 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5531 If verify callback ignores invalid public key errors don't try to check
5532 certificate signature with the NULL public key.
5536 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5537 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5541 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5542 extra data after the compression methods not only for TLS 1.0
5543 but also for SSL 3.0 (as required by the specification).
5544 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5546 *) Change X509_certificate_type() to mark the key as exported/exportable
5547 when it's 512 *bits* long, not 512 bytes.
5550 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5552 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5553 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5554 a protocol version number mismatch like a decryption error
5555 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5558 *) Turn on RSA blinding by default in the default implementation
5559 to avoid a timing attack. Applications that don't want it can call
5560 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5561 They would be ill-advised to do so in most cases.
5562 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5564 *) Change RSA blinding code so that it works when the PRNG is not
5565 seeded (in this case, the secret RSA exponent is abused as
5566 an unpredictable seed -- if it is not unpredictable, there
5567 is no point in blinding anyway). Make RSA blinding thread-safe
5568 by remembering the creator's thread ID in rsa->blinding and
5569 having all other threads use local one-time blinding factors
5570 (this requires more computation than sharing rsa->blinding, but
5571 avoids excessive locking; and if an RSA object is not shared
5572 between threads, blinding will still be very fast).
5575 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5577 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5578 via timing by performing a MAC computation even if incorrrect
5579 block cipher padding has been found. This is a countermeasure
5580 against active attacks where the attacker has to distinguish
5581 between bad padding and a MAC verification error. (CVE-2003-0078)
5583 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5584 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5585 Martin Vuagnoux (EPFL, Ilion)]
5587 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5589 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5590 memory from it's contents. This is done with a counter that will
5591 place alternating values in each byte. This can be used to solve
5592 two issues: 1) the removal of calls to memset() by highly optimizing
5593 compilers, and 2) cleansing with other values than 0, since those can
5594 be read through on certain media, for example a swap space on disk.
5597 *) Bugfix: client side session caching did not work with external caching,
5598 because the session->cipher setting was not restored when reloading
5599 from the external cache. This problem was masked, when
5600 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5601 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5604 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5605 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5606 [Zeev Lieber <zeev-l@yahoo.com>]
5608 *) Undo an undocumented change introduced in 0.9.6e which caused
5609 repeated calls to OpenSSL_add_all_ciphers() and
5610 OpenSSL_add_all_digests() to be ignored, even after calling
5614 *) Change the default configuration reader to deal with last line not
5615 being properly terminated.
5618 *) Change X509_NAME_cmp() so it applies the special rules on handling
5619 DN values that are of type PrintableString, as well as RDNs of type
5620 emailAddress where the value has the type ia5String.
5621 [stefank@valicert.com via Richard Levitte]
5623 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5624 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5625 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5626 the bitwise-OR of the two for use by the majority of applications
5627 wanting this behaviour, and update the docs. The documented
5628 behaviour and actual behaviour were inconsistent and had been
5629 changing anyway, so this is more a bug-fix than a behavioural
5631 [Geoff Thorpe, diagnosed by Nadav Har'El]
5633 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5634 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5637 *) Fix initialization code race conditions in
5638 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5639 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5640 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5641 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5642 ssl2_get_cipher_by_char(),
5643 ssl3_get_cipher_by_char().
5644 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5646 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5647 the cached sessions are flushed, as the remove_cb() might use ex_data
5648 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5649 (see [openssl.org #212]).
5650 [Geoff Thorpe, Lutz Jaenicke]
5652 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5653 length, instead of the encoding length to d2i_ASN1_OBJECT.
5656 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5658 *) [In 0.9.6g-engine release:]
5659 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5660 [Lynn Gazis <lgazis@rainbow.com>]
5662 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5664 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5665 and get fix the header length calculation.
5666 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5667 Alon Kantor <alonk@checkpoint.com> (and others),
5670 *) Use proper error handling instead of 'assertions' in buffer
5671 overflow checks added in 0.9.6e. This prevents DoS (the
5672 assertions could call abort()).
5673 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5675 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5677 *) Add various sanity checks to asn1_get_length() to reject
5678 the ASN1 length bytes if they exceed sizeof(long), will appear
5679 negative or the content length exceeds the length of the
5681 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5683 *) Fix cipher selection routines: ciphers without encryption had no flags
5684 for the cipher strength set and where therefore not handled correctly
5685 by the selection routines (PR #130).
5688 *) Fix EVP_dsa_sha macro.
5692 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5693 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5694 that was added in OpenSSL 0.9.6d.
5696 As the countermeasure turned out to be incompatible with some
5697 broken SSL implementations, the new option is part of SSL_OP_ALL.
5698 SSL_OP_ALL is usually employed when compatibility with weird SSL
5699 implementations is desired (e.g. '-bugs' option to 's_client' and
5700 's_server'), so the new option is automatically set in many
5704 *) Changes in security patch:
5706 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5707 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5708 Air Force Materiel Command, USAF, under agreement number
5711 *) Add various sanity checks to asn1_get_length() to reject
5712 the ASN1 length bytes if they exceed sizeof(long), will appear
5713 negative or the content length exceeds the length of the
5714 supplied buffer. (CVE-2002-0659)
5715 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5717 *) Assertions for various potential buffer overflows, not known to
5719 [Ben Laurie (CHATS)]
5721 *) Various temporary buffers to hold ASCII versions of integers were
5722 too small for 64 bit platforms. (CVE-2002-0655)
5723 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5725 *) Remote buffer overflow in SSL3 protocol - an attacker could
5726 supply an oversized session ID to a client. (CVE-2002-0656)
5727 [Ben Laurie (CHATS)]
5729 *) Remote buffer overflow in SSL2 protocol - an attacker could
5730 supply an oversized client master key. (CVE-2002-0656)
5731 [Ben Laurie (CHATS)]
5733 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5735 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5736 encoded as NULL) with id-dsa-with-sha1.
5737 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5739 *) Check various X509_...() return values in apps/req.c.
5740 [Nils Larsch <nla@trustcenter.de>]
5742 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5743 an end-of-file condition would erronously be flagged, when the CRLF
5744 was just at the end of a processed block. The bug was discovered when
5745 processing data through a buffering memory BIO handing the data to a
5746 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5747 <ptsekov@syntrex.com> and Nedelcho Stanev.
5750 *) Implement a countermeasure against a vulnerability recently found
5751 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5752 before application data chunks to avoid the use of known IVs
5753 with data potentially chosen by the attacker.
5756 *) Fix length checks in ssl3_get_client_hello().
5759 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5760 to prevent ssl3_read_internal() from incorrectly assuming that
5761 ssl3_read_bytes() found application data while handshake
5762 processing was enabled when in fact s->s3->in_read_app_data was
5763 merely automatically cleared during the initial handshake.
5764 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5766 *) Fix object definitions for Private and Enterprise: they were not
5767 recognized in their shortname (=lowercase) representation. Extend
5768 obj_dat.pl to issue an error when using undefined keywords instead
5769 of silently ignoring the problem (Svenning Sorensen
5770 <sss@sss.dnsalias.net>).
5773 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5774 generators, i.e. generators other than 2 and 5. (Previously, the
5775 code did not properly initialise the 'add' and 'rem' values to
5776 BN_generate_prime().)
5778 In the new general case, we do not insist that 'generator' is
5779 actually a primitive root: This requirement is rather pointless;
5780 a generator of the order-q subgroup is just as good, if not
5784 *) Map new X509 verification errors to alerts. Discovered and submitted by
5785 Tom Wu <tom@arcot.com>.
5788 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5789 returning non-zero before the data has been completely received
5790 when using non-blocking I/O.
5791 [Bodo Moeller; problem pointed out by John Hughes]
5793 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5794 [Ben Laurie, Lutz Jaenicke]
5796 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5797 Yoram Zahavi <YoramZ@gilian.com>).
5800 *) Add information about CygWin 1.3 and on, and preserve proper
5801 configuration for the versions before that.
5802 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5804 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5805 check whether we deal with a copy of a session and do not delete from
5806 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5807 <izhar@checkpoint.com>.
5810 *) Do not store session data into the internal session cache, if it
5811 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5812 flag is set). Proposed by Aslam <aslam@funk.com>.
5815 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5819 *) [In 0.9.6d-engine release:]
5820 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5821 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5823 *) Add the configuration target linux-s390x.
5824 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5826 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5827 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5828 variable as an indication that a ClientHello message has been
5829 received. As the flag value will be lost between multiple
5830 invocations of ssl3_accept when using non-blocking I/O, the
5831 function may not be aware that a handshake has actually taken
5832 place, thus preventing a new session from being added to the
5835 To avoid this problem, we now set s->new_session to 2 instead of
5836 using a local variable.
5837 [Lutz Jaenicke, Bodo Moeller]
5839 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5840 if the SSL_R_LENGTH_MISMATCH error is detected.
5841 [Geoff Thorpe, Bodo Moeller]
5843 *) New 'shared_ldflag' column in Configure platform table.
5846 *) Fix EVP_CIPHER_mode macro.
5847 ["Dan S. Camper" <dan@bti.net>]
5849 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5850 type, we must throw them away by setting rr->length to 0.
5851 [D P Chang <dpc@qualys.com>]
5853 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5855 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5856 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5857 worked incorrectly for those cases where range = 10..._2 and
5858 3*range is two bits longer than range.)
5861 *) Only add signing time to PKCS7 structures if it is not already
5865 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5866 OBJ_ld_ce should be OBJ_id_ce.
5867 Also some ip-pda OIDs in crypto/objects/objects.txt were
5868 incorrect (cf. RFC 3039).
5869 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5871 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5872 returns early because it has nothing to do.
5873 [Andy Schneider <andy.schneider@bjss.co.uk>]
5875 *) [In 0.9.6c-engine release:]
5876 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5877 [Andy Schneider <andy.schneider@bjss.co.uk>]
5879 *) [In 0.9.6c-engine release:]
5880 Add support for Cryptographic Appliance's keyserver technology.
5881 (Use engine 'keyclient')
5882 [Cryptographic Appliances and Geoff Thorpe]
5884 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5885 is called via tools/c89.sh because arguments have to be
5886 rearranged (all '-L' options must appear before the first object
5888 [Richard Shapiro <rshapiro@abinitio.com>]
5890 *) [In 0.9.6c-engine release:]
5891 Add support for Broadcom crypto accelerator cards, backported
5893 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5895 *) [In 0.9.6c-engine release:]
5896 Add support for SureWare crypto accelerator cards from
5897 Baltimore Technologies. (Use engine 'sureware')
5898 [Baltimore Technologies and Mark Cox]
5900 *) [In 0.9.6c-engine release:]
5901 Add support for crypto accelerator cards from Accelerated
5902 Encryption Processing, www.aep.ie. (Use engine 'aep')
5903 [AEP Inc. and Mark Cox]
5905 *) Add a configuration entry for gcc on UnixWare.
5906 [Gary Benson <gbenson@redhat.com>]
5908 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5909 messages are stored in a single piece (fixed-length part and
5910 variable-length part combined) and fix various bugs found on the way.
5913 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5914 instead. BIO_gethostbyname() does not know what timeouts are
5915 appropriate, so entries would stay in cache even when they have
5917 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5919 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5920 faced with a pathologically small ClientHello fragment that does
5921 not contain client_version: Instead of aborting with an error,
5922 simply choose the highest available protocol version (i.e.,
5923 TLS 1.0 unless it is disabled). In practice, ClientHello
5924 messages are never sent like this, but this change gives us
5925 strictly correct behaviour at least for TLS.
5928 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5929 never resets s->method to s->ctx->method when called from within
5930 one of the SSL handshake functions.
5931 [Bodo Moeller; problem pointed out by Niko Baric]
5933 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5934 (sent using the client's version number) if client_version is
5935 smaller than the protocol version in use. Also change
5936 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5937 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5938 the client will at least see that alert.
5941 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5945 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5946 client receives HelloRequest while in a handshake.
5947 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5949 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5950 should end in 'break', not 'goto end' which circuments various
5951 cleanups done in state SSL_ST_OK. But session related stuff
5952 must be disabled for SSL_ST_OK in the case that we just sent a
5955 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5956 before just sending a HelloRequest.
5957 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5959 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5960 reveal whether illegal block cipher padding was found or a MAC
5961 verification error occured. (Neither SSLerr() codes nor alerts
5962 are directly visible to potential attackers, but the information
5963 may leak via logfiles.)
5965 Similar changes are not required for the SSL 2.0 implementation
5966 because the number of padding bytes is sent in clear for SSL 2.0,
5967 and the extra bytes are just ignored. However ssl/s2_pkt.c
5968 failed to verify that the purported number of padding bytes is in
5972 *) Add OpenUNIX-8 support including shared libraries
5973 (Boyd Lynn Gerber <gerberb@zenez.com>).
5976 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5977 'wristwatch attack' using huge encoding parameters (cf.
5978 James H. Manger's CRYPTO 2001 paper). Note that the
5979 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5980 encoding parameters and hence was not vulnerable.
5983 *) BN_sqr() bug fix.
5984 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5986 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5987 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5988 followed by modular reduction.
5989 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5991 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5992 equivalent based on BN_pseudo_rand() instead of BN_rand().
5995 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5996 This function was broken, as the check for a new client hello message
5997 to handle SGC did not allow these large messages.
5998 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
6001 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
6004 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
6005 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
6008 *) Rework the configuration and shared library support for Tru64 Unix.
6009 The configuration part makes use of modern compiler features and
6010 still retains old compiler behavior for those that run older versions
6011 of the OS. The shared library support part includes a variant that
6012 uses the RPATH feature, and is available through the special
6013 configuration target "alpha-cc-rpath", which will never be selected
6015 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
6017 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
6018 with the same message size as in ssl3_get_certificate_request().
6019 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
6020 messages might inadvertently be reject as too long.
6021 [Petr Lampa <lampa@fee.vutbr.cz>]
6023 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
6026 *) Modified SSL library such that the verify_callback that has been set
6027 specificly for an SSL object with SSL_set_verify() is actually being
6028 used. Before the change, a verify_callback set with this function was
6029 ignored and the verify_callback() set in the SSL_CTX at the time of
6030 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
6031 to allow the necessary settings.
6034 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
6035 explicitly to NULL, as at least on Solaris 8 this seems not always to be
6036 done automatically (in contradiction to the requirements of the C
6037 standard). This made problems when used from OpenSSH.
6040 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
6041 dh->length and always used
6043 BN_rand_range(priv_key, dh->p).
6045 BN_rand_range() is not necessary for Diffie-Hellman, and this
6046 specific range makes Diffie-Hellman unnecessarily inefficient if
6047 dh->length (recommended exponent length) is much smaller than the
6048 length of dh->p. We could use BN_rand_range() if the order of
6049 the subgroup was stored in the DH structure, but we only have
6054 BN_rand(priv_key, l, ...)
6056 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
6062 RSA_eay_public_encrypt
6063 RSA_eay_private_decrypt
6064 RSA_eay_private_encrypt (signing)
6065 RSA_eay_public_decrypt (signature verification)
6067 (default implementations for RSA_public_encrypt,
6068 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
6069 always reject numbers >= n.
6072 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
6073 to synchronize access to 'locking_thread'. This is necessary on
6074 systems where access to 'locking_thread' (an 'unsigned long'
6075 variable) is not atomic.
6078 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
6079 *before* setting the 'crypto_lock_rand' flag. The previous code had
6080 a race condition if 0 is a valid thread ID.
6081 [Travis Vitek <vitek@roguewave.com>]
6083 *) Add support for shared libraries under Irix.
6084 [Albert Chin-A-Young <china@thewrittenword.com>]
6086 *) Add configuration option to build on Linux on both big-endian and
6088 [Ralf Baechle <ralf@uni-koblenz.de>]
6090 *) Add the possibility to create shared libraries on HP-UX.
6093 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
6095 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
6096 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
6097 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
6098 PRNG state recovery was possible based on the output of
6099 one PRNG request appropriately sized to gain knowledge on
6100 'md' followed by enough consecutive 1-byte PRNG requests
6101 to traverse all of 'state'.
6103 1. When updating 'md_local' (the current thread's copy of 'md')
6104 during PRNG output generation, hash all of the previous
6105 'md_local' value, not just the half used for PRNG output.
6107 2. Make the number of bytes from 'state' included into the hash
6108 independent from the number of PRNG bytes requested.
6110 The first measure alone would be sufficient to avoid
6111 Markku-Juhani's attack. (Actually it had never occurred
6112 to me that the half of 'md_local' used for chaining was the
6113 half from which PRNG output bytes were taken -- I had always
6114 assumed that the secret half would be used.) The second
6115 measure makes sure that additional data from 'state' is never
6116 mixed into 'md_local' in small portions; this heuristically
6117 further strengthens the PRNG.
6120 *) Fix crypto/bn/asm/mips3.s.
6123 *) When only the key is given to "enc", the IV is undefined. Print out
6124 an error message in this case.
6127 *) Handle special case when X509_NAME is empty in X509 printing routines.
6130 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
6131 positive and less than q.
6134 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
6135 used: it isn't thread safe and the add_lock_callback should handle
6137 [Paul Rose <Paul.Rose@bridge.com>]
6139 *) Verify that incoming data obeys the block size in
6140 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
6144 [Ulf Möller, Bodo Möller]
6146 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
6147 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
6148 when fixing the server behaviour for backwards-compatible 'client
6149 hello' messages. (Note that the attack is impractical against
6150 SSL 3.0 and TLS 1.0 anyway because length and version checking
6151 means that the probability of guessing a valid ciphertext is
6152 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
6155 Before 0.9.5, the countermeasure (hide the error by generating a
6156 random 'decryption result') did not work properly because
6157 ERR_clear_error() was missing, meaning that SSL_get_error() would
6158 detect the supposedly ignored error.
6160 Both problems are now fixed.
6163 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
6164 (previously it was 1024).
6167 *) Fix for compatibility mode trust settings: ignore trust settings
6168 unless some valid trust or reject settings are present.
6171 *) Fix for blowfish EVP: its a variable length cipher.
6174 *) Fix various bugs related to DSA S/MIME verification. Handle missing
6175 parameters in DSA public key structures and return an error in the
6176 DSA routines if parameters are absent.
6179 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
6180 in the current directory if neither $RANDFILE nor $HOME was set.
6181 RAND_file_name() in 0.9.6a returned NULL in this case. This has
6182 caused some confusion to Windows users who haven't defined $HOME.
6183 Thus RAND_file_name() is changed again: e_os.h can define a
6184 DEFAULT_HOME, which will be used if $HOME is not set.
6185 For Windows, we use "C:"; on other platforms, we still require
6186 environment variables.
6188 *) Move 'if (!initialized) RAND_poll()' into regions protected by
6189 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
6190 having multiple threads call RAND_poll() concurrently.
6193 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
6194 combination of a flag and a thread ID variable.
6195 Otherwise while one thread is in ssleay_rand_bytes (which sets the
6196 flag), *other* threads can enter ssleay_add_bytes without obeying
6197 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
6198 that they do not hold after the first thread unsets add_do_not_lock).
6201 *) Change bctest again: '-x' expressions are not available in all
6205 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
6207 *) Fix a couple of memory leaks in PKCS7_dataDecode()
6208 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
6210 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
6211 the default extension for executables, if any. Also, make the perl
6212 scripts that use symlink() to test if it really exists and use "cp"
6213 if it doesn't. All this made OpenSSL compilable and installable in
6217 *) Fix for asn1_GetSequence() for indefinite length constructed data.
6218 If SEQUENCE is length is indefinite just set c->slen to the total
6219 amount of data available.
6220 [Steve Henson, reported by shige@FreeBSD.org]
6221 [This change does not apply to 0.9.7.]
6223 *) Change bctest to avoid here-documents inside command substitution
6224 (workaround for FreeBSD /bin/sh bug).
6225 For compatibility with Ultrix, avoid shell functions (introduced
6226 in the bctest version that searches along $PATH).
6229 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
6230 with des_encrypt() defined on some operating systems, like Solaris
6234 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
6235 On the Importance of Eliminating Errors in Cryptographic
6236 Computations, J. Cryptology 14 (2001) 2, 101-119,
6237 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
6240 *) MIPS assembler BIGNUM division bug fix.
6243 *) Disabled incorrect Alpha assembler code.
6246 *) Fix PKCS#7 decode routines so they correctly update the length
6247 after reading an EOC for the EXPLICIT tag.
6249 [This change does not apply to 0.9.7.]
6251 *) Fix bug in PKCS#12 key generation routines. This was triggered
6252 if a 3DES key was generated with a 0 initial byte. Include
6253 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6254 (but broken) behaviour.
6257 *) Enhance bctest to search for a working bc along $PATH and print
6259 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6261 *) Fix memory leaks in err.c: free err_data string if necessary;
6262 don't write to the wrong index in ERR_set_error_data.
6265 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6269 *) Replace rdtsc with _emit statements for VC++ version 5.
6270 [Jeremy Cooper <jeremy@baymoo.org>]
6272 *) Make it possible to reuse SSLv2 sessions.
6275 *) In copy_email() check for >= 0 as a return value for
6276 X509_NAME_get_index_by_NID() since 0 is a valid index.
6277 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6279 *) Avoid coredump with unsupported or invalid public keys by checking if
6280 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6281 PKCS7_verify() fails with non detached data.
6284 *) Don't use getenv in library functions when run as setuid/setgid.
6285 New function OPENSSL_issetugid().
6288 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6289 due to incorrect handling of multi-threading:
6291 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6293 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6295 3. Count how many times MemCheck_off() has been called so that
6296 nested use can be treated correctly. This also avoids
6297 inband-signalling in the previous code (which relied on the
6298 assumption that thread ID 0 is impossible).
6301 *) Add "-rand" option also to s_client and s_server.
6304 *) Fix CPU detection on Irix 6.x.
6305 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6306 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6308 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6311 [This change does not apply to 0.9.7.]
6313 *) Use the cached encoding of an X509_NAME structure rather than
6314 copying it. This is apparently the reason for the libsafe "errors"
6315 but the code is actually correct.
6318 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6319 Bleichenbacher's DSA attack.
6320 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6321 to be set and top=0 forces the highest bit to be set; top=-1 is new
6322 and leaves the highest bit random.
6323 [Ulf Moeller, Bodo Moeller]
6325 *) In the NCONF_...-based implementations for CONF_... queries
6326 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6327 a temporary CONF structure with the data component set to NULL
6328 (which gives segmentation faults in lh_retrieve).
6329 Instead, use NULL for the CONF pointer in CONF_get_string and
6330 CONF_get_number (which may use environment variables) and directly
6331 return NULL from CONF_get_section.
6334 *) Fix potential buffer overrun for EBCDIC.
6337 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6338 keyUsage if basicConstraints absent for a CA.
6341 *) Make SMIME_write_PKCS7() write mail header values with a format that
6342 is more generally accepted (no spaces before the semicolon), since
6343 some programs can't parse those values properly otherwise. Also make
6344 sure BIO's that break lines after each write do not create invalid
6348 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6349 macros previously used would not encode an empty SEQUENCE OF
6350 and break the signature.
6352 [This change does not apply to 0.9.7.]
6354 *) Zero the premaster secret after deriving the master secret in
6358 *) Add some EVP_add_digest_alias registrations (as found in
6359 OpenSSL_add_all_digests()) to SSL_library_init()
6360 aka OpenSSL_add_ssl_algorithms(). This provides improved
6361 compatibility with peers using X.509 certificates
6362 with unconventional AlgorithmIdentifier OIDs.
6365 *) Fix for Irix with NO_ASM.
6366 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6368 *) ./config script fixes.
6369 [Ulf Moeller, Richard Levitte]
6371 *) Fix 'openssl passwd -1'.
6374 *) Change PKCS12_key_gen_asc() so it can cope with non null
6375 terminated strings whose length is passed in the passlen
6376 parameter, for example from PEM callbacks. This was done
6377 by adding an extra length parameter to asc2uni().
6378 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6380 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6381 call failed, free the DSA structure.
6384 *) Fix to uni2asc() to cope with zero length Unicode strings.
6385 These are present in some PKCS#12 files.
6388 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6389 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6390 when writing a 32767 byte record.
6391 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6393 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6394 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6396 (RSA objects have a reference count access to which is protected
6397 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6398 so they are meant to be shared between threads.)
6399 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6400 "Reddie, Steven" <Steven.Reddie@ca.com>]
6402 *) Fix a deadlock in CRYPTO_mem_leaks().
6405 *) Use better test patterns in bntest.
6408 *) rand_win.c fix for Borland C.
6411 *) BN_rshift bugfix for n == 0.
6414 *) Add a 'bctest' script that checks for some known 'bc' bugs
6415 so that 'make test' does not abort just because 'bc' is broken.
6418 *) Store verify_result within SSL_SESSION also for client side to
6419 avoid potential security hole. (Re-used sessions on the client side
6420 always resulted in verify_result==X509_V_OK, not using the original
6421 result of the server certificate verification.)
6424 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6425 SSL3_RT_APPLICATION_DATA, return 0.
6426 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6430 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6431 releases, have been re-implemented by renaming the previous
6432 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6433 and ssl3_read_internal, respectively, and adding 'peek' parameters
6434 to them. The new ssl[23]_{read,peek} functions are calls to
6435 ssl[23]_read_internal with the 'peek' flag set appropriately.
6436 A 'peek' parameter has also been added to ssl3_read_bytes, which
6437 does the actual work for ssl3_read_internal.
6440 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6441 the method-specific "init()" handler. Also clean up ex_data after
6442 calling the method-specific "finish()" handler. Previously, this was
6443 happening the other way round.
6446 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6447 The previous value, 12, was not always sufficient for BN_mod_exp().
6450 *) Make sure that shared libraries get the internal name engine with
6451 the full version number and not just 0. This should mark the
6452 shared libraries as not backward compatible. Of course, this should
6453 be changed again when we can guarantee backward binary compatibility.
6456 *) Fix typo in get_cert_by_subject() in by_dir.c
6457 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6459 *) Rework the system to generate shared libraries:
6461 - Make note of the expected extension for the shared libraries and
6462 if there is a need for symbolic links from for example libcrypto.so.0
6463 to libcrypto.so.0.9.7. There is extended info in Configure for
6466 - Make as few rebuilds of the shared libraries as possible.
6468 - Still avoid linking the OpenSSL programs with the shared libraries.
6470 - When installing, install the shared libraries separately from the
6474 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6476 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6477 and not in SSL_clear because the latter is also used by the
6478 accept/connect functions; previously, the settings made by
6479 SSL_set_read_ahead would be lost during the handshake.
6480 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6482 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6483 Previously, it would create entries for disableed algorithms no
6487 *) Added several new manual pages for SSL_* function.
6490 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6492 *) In ssl23_get_client_hello, generate an error message when faced
6493 with an initial SSL 3.0/TLS record that is too small to contain the
6494 first two bytes of the ClientHello message, i.e. client_version.
6495 (Note that this is a pathologic case that probably has never happened
6496 in real life.) The previous approach was to use the version number
6497 from the record header as a substitute; but our protocol choice
6498 should not depend on that one because it is not authenticated
6499 by the Finished messages.
6502 *) More robust randomness gathering functions for Windows.
6503 [Jeffrey Altman <jaltman@columbia.edu>]
6505 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6506 not set then we don't setup the error code for issuer check errors
6507 to avoid possibly overwriting other errors which the callback does
6508 handle. If an application does set the flag then we assume it knows
6509 what it is doing and can handle the new informational codes
6513 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6514 a general "ANY" type, as such it should be able to decode anything
6515 including tagged types. However it didn't check the class so it would
6516 wrongly interpret tagged types in the same way as their universal
6517 counterpart and unknown types were just rejected. Changed so that the
6518 tagged and unknown types are handled in the same way as a SEQUENCE:
6519 that is the encoding is stored intact. There is also a new type
6520 "V_ASN1_OTHER" which is used when the class is not universal, in this
6521 case we have no idea what the actual type is so we just lump them all
6525 *) On VMS, stdout may very well lead to a file that is written to
6526 in a record-oriented fashion. That means that every write() will
6527 write a separate record, which will be read separately by the
6528 programs trying to read from it. This can be very confusing.
6530 The solution is to put a BIO filter in the way that will buffer
6531 text until a linefeed is reached, and then write everything a
6532 line at a time, so every record written will be an actual line,
6533 not chunks of lines and not (usually doesn't happen, but I've
6534 seen it once) several lines in one record. BIO_f_linebuffer() is
6537 Currently, it's a VMS-only method, because that's where it has
6538 been tested well enough.
6541 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6542 it can return incorrect results.
6543 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6544 but it was in 0.9.6-beta[12].)
6547 *) Disable the check for content being present when verifying detached
6548 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6549 include zero length content when signing messages.
6552 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6553 BIO_ctrl (for BIO pairs).
6556 *) Add DSO method for VMS.
6559 *) Bug fix: Montgomery multiplication could produce results with the
6563 *) Add RPM specification openssl.spec and modify it to build three
6564 packages. The default package contains applications, application
6565 documentation and run-time libraries. The devel package contains
6566 include files, static libraries and function documentation. The
6567 doc package contains the contents of the doc directory. The original
6568 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6571 *) Add a large number of documentation files for many SSL routines.
6572 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6574 *) Add a configuration entry for Sony News 4.
6575 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6577 *) Don't set the two most significant bits to one when generating a
6578 random number < q in the DSA library.
6581 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6582 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6583 the underlying transport is blocking) if a handshake took place.
6584 (The default behaviour is needed by applications such as s_client
6585 and s_server that use select() to determine when to use SSL_read;
6586 but for applications that know in advance when to expect data, it
6587 just makes things more complicated.)
6590 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6594 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6595 work better on such systems.
6596 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6598 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6599 Update PKCS12_parse() so it copies the friendlyName and the
6600 keyid to the certificates aux info.
6603 *) Fix bug in PKCS7_verify() which caused an infinite loop
6604 if there was more than one signature.
6605 [Sven Uszpelkat <su@celocom.de>]
6607 *) Major change in util/mkdef.pl to include extra information
6608 about each symbol, as well as presentig variables as well
6609 as functions. This change means that there's n more need
6610 to rebuild the .num files when some algorithms are excluded.
6613 *) Allow the verify time to be set by an application,
6614 rather than always using the current time.
6617 *) Phase 2 verify code reorganisation. The certificate
6618 verify code now looks up an issuer certificate by a
6619 number of criteria: subject name, authority key id
6620 and key usage. It also verifies self signed certificates
6621 by the same criteria. The main comparison function is
6622 X509_check_issued() which performs these checks.
6624 Lot of changes were necessary in order to support this
6625 without completely rewriting the lookup code.
6627 Authority and subject key identifier are now cached.
6629 The LHASH 'certs' is X509_STORE has now been replaced
6630 by a STACK_OF(X509_OBJECT). This is mainly because an
6631 LHASH can't store or retrieve multiple objects with
6632 the same hash value.
6634 As a result various functions (which were all internal
6635 use only) have changed to handle the new X509_STORE
6636 structure. This will break anything that messed round
6637 with X509_STORE internally.
6639 The functions X509_STORE_add_cert() now checks for an
6640 exact match, rather than just subject name.
6642 The X509_STORE API doesn't directly support the retrieval
6643 of multiple certificates matching a given criteria, however
6644 this can be worked round by performing a lookup first
6645 (which will fill the cache with candidate certificates)
6646 and then examining the cache for matches. This is probably
6647 the best we can do without throwing out X509_LOOKUP
6648 entirely (maybe later...).
6650 The X509_VERIFY_CTX structure has been enhanced considerably.
6652 All certificate lookup operations now go via a get_issuer()
6653 callback. Although this currently uses an X509_STORE it
6654 can be replaced by custom lookups. This is a simple way
6655 to bypass the X509_STORE hackery necessary to make this
6656 work and makes it possible to use more efficient techniques
6657 in future. A very simple version which uses a simple
6658 STACK for its trusted certificate store is also provided
6659 using X509_STORE_CTX_trusted_stack().
6661 The verify_cb() and verify() callbacks now have equivalents
6662 in the X509_STORE_CTX structure.
6664 X509_STORE_CTX also has a 'flags' field which can be used
6665 to customise the verify behaviour.
6668 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6669 excludes S/MIME capabilities.
6672 *) When a certificate request is read in keep a copy of the
6673 original encoding of the signed data and use it when outputing
6674 again. Signatures then use the original encoding rather than
6675 a decoded, encoded version which may cause problems if the
6676 request is improperly encoded.
6679 *) For consistency with other BIO_puts implementations, call
6680 buffer_write(b, ...) directly in buffer_puts instead of calling
6683 In BIO_puts, increment b->num_write as in BIO_write.
6684 [Peter.Sylvester@EdelWeb.fr]
6686 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6687 BN_zero, we may not return a BIGNUM with an array consisting of
6691 *) Avoid calling abort() from within the library when problems are
6692 detected, except if preprocessor symbols have been defined
6693 (such as REF_CHECK, BN_DEBUG etc.).
6696 *) New openssl application 'rsautl'. This utility can be
6697 used for low level RSA operations. DER public key
6698 BIO/fp routines also added.
6701 *) New Configure entry and patches for compiling on QNX 4.
6702 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6704 *) A demo state-machine implementation was sponsored by
6705 Nuron (http://www.nuron.com/) and is now available in
6706 demos/state_machine.
6709 *) New options added to the 'dgst' utility for signature
6710 generation and verification.
6713 *) Unrecognized PKCS#7 content types are now handled via a
6714 catch all ASN1_TYPE structure. This allows unsupported
6715 types to be stored as a "blob" and an application can
6716 encode and decode it manually.
6719 *) Fix various signed/unsigned issues to make a_strex.c
6721 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6723 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6724 length if passed a buffer. ASN1_INTEGER_to_BN failed
6725 if passed a NULL BN and its argument was negative.
6726 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6728 *) Modification to PKCS#7 encoding routines to output definite
6729 length encoding. Since currently the whole structures are in
6730 memory there's not real point in using indefinite length
6731 constructed encoding. However if OpenSSL is compiled with
6732 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6735 *) Added BIO_vprintf() and BIO_vsnprintf().
6738 *) Added more prefixes to parse for in the the strings written
6739 through a logging bio, to cover all the levels that are available
6740 through syslog. The prefixes are now:
6742 PANIC, EMERG, EMR => LOG_EMERG
6743 ALERT, ALR => LOG_ALERT
6744 CRIT, CRI => LOG_CRIT
6745 ERROR, ERR => LOG_ERR
6746 WARNING, WARN, WAR => LOG_WARNING
6747 NOTICE, NOTE, NOT => LOG_NOTICE
6748 INFO, INF => LOG_INFO
6749 DEBUG, DBG => LOG_DEBUG
6751 and as before, if none of those prefixes are present at the
6752 beginning of the string, LOG_ERR is chosen.
6754 On Win32, the LOG_* levels are mapped according to this:
6756 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6757 LOG_WARNING => EVENTLOG_WARNING_TYPE
6758 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6762 *) Made it possible to reconfigure with just the configuration
6763 argument "reconf" or "reconfigure". The command line arguments
6764 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6765 and are retrieved from there when reconfiguring.
6769 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6771 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6774 *) The obj_dat.pl script was messing up the sorting of object
6775 names. The reason was that it compared the quoted version
6776 of strings as a result "OCSP" > "OCSP Signing" because
6777 " > SPACE. Changed script to store unquoted versions of
6778 names and add quotes on output. It was also omitting some
6779 names from the lookup table if they were given a default
6780 value (that is if SN is missing it is given the same
6781 value as LN and vice versa), these are now added on the
6782 grounds that if an object has a name we should be able to
6783 look it up. Finally added warning output when duplicate
6784 short or long names are found.
6787 *) Changes needed for Tandem NSK.
6788 [Scott Uroff <scott@xypro.com>]
6790 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6791 RSA_padding_check_SSLv23(), special padding was never detected
6792 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6793 version rollback attacks was not effective.
6795 In s23_clnt.c, don't use special rollback-attack detection padding
6796 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6797 client; similarly, in s23_srvr.c, don't do the rollback check if
6798 SSL 2.0 is the only protocol enabled in the server.
6801 *) Make it possible to get hexdumps of unprintable data with 'openssl
6802 asn1parse'. By implication, the functions ASN1_parse_dump() and
6803 BIO_dump_indent() are added.
6806 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6807 these print out strings and name structures based on various
6808 flags including RFC2253 support and proper handling of
6809 multibyte characters. Added options to the 'x509' utility
6810 to allow the various flags to be set.
6813 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6814 Also change the functions X509_cmp_current_time() and
6815 X509_gmtime_adj() work with an ASN1_TIME structure,
6816 this will enable certificates using GeneralizedTime in validity
6817 dates to be checked.
6820 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6821 negative public key encodings) on by default,
6822 NO_NEG_PUBKEY_BUG can be set to disable it.
6825 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6826 content octets. An i2c_ASN1_OBJECT is unnecessary because
6827 the encoding can be trivially obtained from the structure.
6830 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6831 not read locks (CRYPTO_r_[un]lock).
6834 *) A first attempt at creating official support for shared
6835 libraries through configuration. I've kept it so the
6836 default is static libraries only, and the OpenSSL programs
6837 are always statically linked for now, but there are
6838 preparations for dynamic linking in place.
6839 This has been tested on Linux and Tru64.
6842 *) Randomness polling function for Win9x, as described in:
6843 Peter Gutmann, Software Generation of Practically Strong
6847 *) Fix so PRNG is seeded in req if using an already existing
6851 *) New options to smime application. -inform and -outform
6852 allow alternative formats for the S/MIME message including
6853 PEM and DER. The -content option allows the content to be
6854 specified separately. This should allow things like Netscape
6855 form signing output easier to verify.
6858 *) Fix the ASN1 encoding of tags using the 'long form'.
6861 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6862 STRING types. These convert content octets to and from the
6863 underlying type. The actual tag and length octets are
6864 already assumed to have been read in and checked. These
6865 are needed because all other string types have virtually
6866 identical handling apart from the tag. By having versions
6867 of the ASN1 functions that just operate on content octets
6868 IMPLICIT tagging can be handled properly. It also allows
6869 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6870 and ASN1_INTEGER are identical apart from the tag.
6873 *) Change the handling of OID objects as follows:
6875 - New object identifiers are inserted in objects.txt, following
6876 the syntax given in objects.README.
6877 - objects.pl is used to process obj_mac.num and create a new
6879 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6882 This is currently kind of a hack, and the perl code in objects.pl
6883 isn't very elegant, but it works as I intended. The simplest way
6884 to check that it worked correctly is to look in obj_dat.h and
6885 check the array nid_objs and make sure the objects haven't moved
6886 around (this is important!). Additions are OK, as well as
6887 consistent name changes.
6890 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6893 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6894 The given file adds to whatever has already been seeded into the
6895 random pool through the RANDFILE configuration file option or
6896 environment variable, or the default random state file.
6899 *) mkstack.pl now sorts each macro group into lexical order.
6900 Previously the output order depended on the order the files
6901 appeared in the directory, resulting in needless rewriting
6905 *) Patches to make OpenSSL compile under Win32 again. Mostly
6906 work arounds for the VC++ problem that it treats func() as
6907 func(void). Also stripped out the parts of mkdef.pl that
6908 added extra typesafe functions: these no longer exist.
6911 *) Reorganisation of the stack code. The macros are now all
6912 collected in safestack.h . Each macro is defined in terms of
6913 a "stack macro" of the form SKM_<name>(type, a, b). The
6914 DEBUG_SAFESTACK is now handled in terms of function casts,
6915 this has the advantage of retaining type safety without the
6916 use of additional functions. If DEBUG_SAFESTACK is not defined
6917 then the non typesafe macros are used instead. Also modified the
6918 mkstack.pl script to handle the new form. Needs testing to see
6919 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6920 the default if no major problems. Similar behaviour for ASN1_SET_OF
6921 and PKCS12_STACK_OF.
6924 *) When some versions of IIS use the 'NET' form of private key the
6925 key derivation algorithm is different. Normally MD5(password) is
6926 used as a 128 bit RC4 key. In the modified case
6927 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6928 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6929 as the old Netscape_RSA functions except they have an additional
6930 'sgckey' parameter which uses the modified algorithm. Also added
6931 an -sgckey command line option to the rsa utility. Thanks to
6932 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6933 algorithm to openssl-dev.
6936 *) The evp_local.h macros were using 'c.##kname' which resulted in
6937 invalid expansion on some systems (SCO 5.0.5 for example).
6938 Corrected to 'c.kname'.
6939 [Phillip Porch <root@theporch.com>]
6941 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6942 a STACK of email addresses from a certificate or request, these look
6943 in the subject name and the subject alternative name extensions and
6944 omit any duplicate addresses.
6947 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6948 This makes DSA verification about 2 % faster.
6951 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6952 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6953 plus overhead for 1024 bit moduli).
6954 This makes exponentiations about 0.5 % faster for 1024 bit
6955 exponents (as measured by "openssl speed rsa2048").
6958 *) Rename memory handling macros to avoid conflicts with other
6960 Malloc => OPENSSL_malloc
6961 Malloc_locked => OPENSSL_malloc_locked
6962 Realloc => OPENSSL_realloc
6963 Free => OPENSSL_free
6966 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6967 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6970 *) CygWin32 support.
6971 [John Jarvie <jjarvie@newsguy.com>]
6973 *) The type-safe stack code has been rejigged. It is now only compiled
6974 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6975 by default all type-specific stack functions are "#define"d back to
6976 standard stack functions. This results in more streamlined output
6977 but retains the type-safety checking possibilities of the original
6981 *) The STACK code has been cleaned up, and certain type declarations
6982 that didn't make a lot of sense have been brought in line. This has
6983 also involved a cleanup of sorts in safestack.h to more correctly
6984 map type-safe stack functions onto their plain stack counterparts.
6985 This work has also resulted in a variety of "const"ifications of
6986 lots of the code, especially "_cmp" operations which should normally
6987 be prototyped with "const" parameters anyway.
6990 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6991 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6992 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6993 where all of 'md' is used each time the PRNG is used, but 'state'
6994 is used only indexed by a cyclic counter. As entropy may not be
6995 well distributed from the beginning, 'md' is important as a
6996 chaining variable. However, the output function chains only half
6997 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6998 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6999 in all of 'state' being rewritten, with the new values depending
7000 on virtually all of 'md'. This overcomes the 80 bit limitation.)
7003 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
7004 the handshake is continued after ssl_verify_cert_chain();
7005 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
7006 can lead to 'unexplainable' connection aborts later.
7007 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
7009 *) Major EVP API cipher revision.
7010 Add hooks for extra EVP features. This allows various cipher
7011 parameters to be set in the EVP interface. Support added for variable
7012 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
7013 setting of RC2 and RC5 parameters.
7015 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
7018 Remove lots of duplicated code from the EVP library. For example *every*
7019 cipher init() function handles the 'iv' in the same way according to the
7020 cipher mode. They also all do nothing if the 'key' parameter is NULL and
7021 for CFB and OFB modes they zero ctx->num.
7023 New functionality allows removal of S/MIME code RC2 hack.
7025 Most of the routines have the same form and so can be declared in terms
7028 By shifting this to the top level EVP_CipherInit() it can be removed from
7029 all individual ciphers. If the cipher wants to handle IVs or keys
7030 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
7033 Change lots of functions like EVP_EncryptUpdate() to now return a
7034 value: although software versions of the algorithms cannot fail
7035 any installed hardware versions can.
7038 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
7039 this option is set, tolerate broken clients that send the negotiated
7040 protocol version number instead of the requested protocol version
7044 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
7045 i.e. non-zero for export ciphersuites, zero otherwise.
7046 Previous versions had this flag inverted, inconsistent with
7047 rsa_tmp_cb (..._TMP_RSA_CB).
7048 [Bodo Moeller; problem reported by Amit Chopra]
7050 *) Add missing DSA library text string. Work around for some IIS
7051 key files with invalid SEQUENCE encoding.
7054 *) Add a document (doc/standards.txt) that list all kinds of standards
7055 and so on that are implemented in OpenSSL.
7058 *) Enhance c_rehash script. Old version would mishandle certificates
7059 with the same subject name hash and wouldn't handle CRLs at all.
7060 Added -fingerprint option to crl utility, to support new c_rehash
7064 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
7067 *) Fix for SSL server purpose checking. Server checking was
7068 rejecting certificates which had extended key usage present
7069 but no ssl client purpose.
7070 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
7072 *) Make PKCS#12 code work with no password. The PKCS#12 spec
7073 is a little unclear about how a blank password is handled.
7074 Since the password in encoded as a BMPString with terminating
7075 double NULL a zero length password would end up as just the
7076 double NULL. However no password at all is different and is
7077 handled differently in the PKCS#12 key generation code. NS
7078 treats a blank password as zero length. MSIE treats it as no
7079 password on export: but it will try both on import. We now do
7080 the same: PKCS12_parse() tries zero length and no password if
7081 the password is set to "" or NULL (NULL is now a valid password:
7082 it wasn't before) as does the pkcs12 application.
7085 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
7086 perror when PEM_read_bio_X509_REQ fails, the error message must
7087 be obtained from the error queue.
7090 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
7091 it in ERR_remove_state if appropriate, and change ERR_get_state
7092 accordingly to avoid race conditions (this is necessary because
7093 thread_hash is no longer constant once set).
7096 *) Bugfix for linux-elf makefile.one.
7099 *) RSA_get_default_method() will now cause a default
7100 RSA_METHOD to be chosen if one doesn't exist already.
7101 Previously this was only set during a call to RSA_new()
7102 or RSA_new_method(NULL) meaning it was possible for
7103 RSA_get_default_method() to return NULL.
7106 *) Added native name translation to the existing DSO code
7107 that will convert (if the flag to do so is set) filenames
7108 that are sufficiently small and have no path information
7109 into a canonical native form. Eg. "blah" converted to
7110 "libblah.so" or "blah.dll" etc.
7113 *) New function ERR_error_string_n(e, buf, len) which is like
7114 ERR_error_string(e, buf), but writes at most 'len' bytes
7115 including the 0 terminator. For ERR_error_string_n, 'buf'
7117 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
7119 *) CONF library reworked to become more general. A new CONF
7120 configuration file reader "class" is implemented as well as a
7121 new functions (NCONF_*, for "New CONF") to handle it. The now
7122 old CONF_* functions are still there, but are reimplemented to
7123 work in terms of the new functions. Also, a set of functions
7124 to handle the internal storage of the configuration data is
7125 provided to make it easier to write new configuration file
7126 reader "classes" (I can definitely see something reading a
7127 configuration file in XML format, for example), called _CONF_*,
7128 or "the configuration storage API"...
7130 The new configuration file reading functions are:
7132 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
7133 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
7135 NCONF_default, NCONF_WIN32
7137 NCONF_dump_fp, NCONF_dump_bio
7139 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
7140 NCONF_new creates a new CONF object. This works in the same way
7141 as other interfaces in OpenSSL, like the BIO interface.
7142 NCONF_dump_* dump the internal storage of the configuration file,
7143 which is useful for debugging. All other functions take the same
7144 arguments as the old CONF_* functions wth the exception of the
7145 first that must be a `CONF *' instead of a `LHASH *'.
7147 To make it easer to use the new classes with the old CONF_* functions,
7148 the function CONF_set_default_method is provided.
7151 *) Add '-tls1' option to 'openssl ciphers', which was already
7152 mentioned in the documentation but had not been implemented.
7153 (This option is not yet really useful because even the additional
7154 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
7157 *) Initial DSO code added into libcrypto for letting OpenSSL (and
7158 OpenSSL-based applications) load shared libraries and bind to
7159 them in a portable way.
7160 [Geoff Thorpe, with contributions from Richard Levitte]
7162 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
7164 *) Make sure _lrotl and _lrotr are only used with MSVC.
7166 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
7167 (the default implementation of RAND_status).
7169 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
7170 to '-clrext' (= clear extensions), as intended and documented.
7171 [Bodo Moeller; inconsistency pointed out by Michael Attili
7174 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
7175 was larger than the MD block size.
7176 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
7178 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
7179 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
7180 using the passed key: if the passed key was a private key the result
7181 of X509_print(), for example, would be to print out all the private key
7185 *) des_quad_cksum() byte order bug fix.
7186 [Ulf Möller, using the problem description in krb4-0.9.7, where
7187 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
7189 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
7191 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
7193 *) For easily testing in shell scripts whether some command
7194 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
7195 returns with exit code 0 iff no command of the given name is available.
7196 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
7197 the output goes to stdout and nothing is printed to stderr.
7198 Additional arguments are always ignored.
7200 Since for each cipher there is a command of the same name,
7201 the 'no-cipher' compilation switches can be tested this way.
7203 ('openssl no-XXX' is not able to detect pseudo-commands such
7204 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
7207 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
7210 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
7211 is set; it will be thrown away anyway because each handshake creates
7213 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
7214 to parameters -- in previous versions (since OpenSSL 0.9.3) the
7215 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
7216 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
7219 *) New s_client option -ign_eof: EOF at stdin is ignored, and
7220 'Q' and 'R' lose their special meanings (quit/renegotiate).
7221 This is part of what -quiet does; unlike -quiet, -ign_eof
7222 does not suppress any output.
7225 *) Add compatibility options to the purpose and trust code. The
7226 purpose X509_PURPOSE_ANY is "any purpose" which automatically
7227 accepts a certificate or CA, this was the previous behaviour,
7228 with all the associated security issues.
7230 X509_TRUST_COMPAT is the old trust behaviour: only and
7231 automatically trust self signed roots in certificate store. A
7232 new trust setting X509_TRUST_DEFAULT is used to specify that
7233 a purpose has no associated trust setting and it should instead
7234 use the value in the default purpose.
7237 *) Fix the PKCS#8 DSA private key code so it decodes keys again
7238 and fix a memory leak.
7241 *) In util/mkerr.pl (which implements 'make errors'), preserve
7242 reason strings from the previous version of the .c file, as
7243 the default to have only downcase letters (and digits) in
7244 automatically generated reasons codes is not always appropriate.
7247 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
7248 using strerror. Previously, ERR_reason_error_string() returned
7249 library names as reason strings for SYSerr; but SYSerr is a special
7250 case where small numbers are errno values, not library numbers.
7253 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7254 converts DSA parameters into DH parameters. (When creating parameters,
7255 DSA_generate_parameters is used.)
7258 *) Include 'length' (recommended exponent length) in C code generated
7259 by 'openssl dhparam -C'.
7262 *) The second argument to set_label in perlasm was already being used
7263 so couldn't be used as a "file scope" flag. Moved to third argument
7267 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7268 instead of RAND_bytes for encryption IVs and salts.
7271 *) Include RAND_status() into RAND_METHOD instead of implementing
7272 it only for md_rand.c Otherwise replacing the PRNG by calling
7273 RAND_set_rand_method would be impossible.
7276 *) Don't let DSA_generate_key() enter an infinite loop if the random
7277 number generation fails.
7280 *) New 'rand' application for creating pseudo-random output.
7283 *) Added configuration support for Linux/IA64
7284 [Rolf Haberrecker <rolf@suse.de>]
7286 *) Assembler module support for Mingw32.
7289 *) Shared library support for HPUX (in shlib/).
7290 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7292 *) Shared library support for Solaris gcc.
7293 [Lutz Behnke <behnke@trustcenter.de>]
7295 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7297 *) PKCS7_encrypt() was adding text MIME headers twice because they
7298 were added manually and by SMIME_crlf_copy().
7301 *) In bntest.c don't call BN_rand with zero bits argument.
7302 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7304 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7305 case was implemented. This caused BN_div_recp() to fail occasionally.
7308 *) Add an optional second argument to the set_label() in the perl
7309 assembly language builder. If this argument exists and is set
7310 to 1 it signals that the assembler should use a symbol whose
7311 scope is the entire file, not just the current function. This
7312 is needed with MASM which uses the format label:: for this scope.
7313 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7315 *) Change the ASN1 types so they are typedefs by default. Before
7316 almost all types were #define'd to ASN1_STRING which was causing
7317 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7321 *) Change names of new functions to the new get1/get0 naming
7322 convention: After 'get1', the caller owns a reference count
7323 and has to call ..._free; 'get0' returns a pointer to some
7324 data structure without incrementing reference counters.
7325 (Some of the existing 'get' functions increment a reference
7326 counter, some don't.)
7327 Similarly, 'set1' and 'add1' functions increase reference
7328 counters or duplicate objects.
7331 *) Allow for the possibility of temp RSA key generation failure:
7332 the code used to assume it always worked and crashed on failure.
7335 *) Fix potential buffer overrun problem in BIO_printf().
7336 [Ulf Möller, using public domain code by Patrick Powell; problem
7337 pointed out by David Sacerdote <das33@cornell.edu>]
7339 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7340 RAND_egd() and RAND_status(). In the command line application,
7341 the EGD socket can be specified like a seed file using RANDFILE
7345 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7346 Some CAs (e.g. Verisign) distribute certificates in this form.
7349 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7350 list to exclude them. This means that no special compilation option
7351 is needed to use anonymous DH: it just needs to be included in the
7355 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7356 EVP_MD_type. The old functionality is available in a new macro called
7357 EVP_MD_md(). Change code that uses it and update docs.
7360 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7361 where the 'void *' argument is replaced by a function pointer argument.
7362 Previously 'void *' was abused to point to functions, which works on
7363 many platforms, but is not correct. As these functions are usually
7364 called by macros defined in OpenSSL header files, most source code
7365 should work without changes.
7368 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7369 sections with information on -D... compiler switches used for
7370 compiling the library so that applications can see them. To enable
7371 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7372 must be defined. E.g.,
7373 #define OPENSSL_ALGORITHM_DEFINES
7374 #include <openssl/opensslconf.h>
7375 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7376 [Richard Levitte, Ulf and Bodo Möller]
7378 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7382 *) Change the 'other' type in certificate aux info to a STACK_OF
7383 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7384 the required ASN1 format: arbitrary types determined by an OID.
7387 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7388 argument to 'req'. This is not because the function is newer or
7389 better than others it just uses the work 'NEW' in the certificate
7390 request header lines. Some software needs this.
7393 *) Reorganise password command line arguments: now passwords can be
7394 obtained from various sources. Delete the PEM_cb function and make
7395 it the default behaviour: i.e. if the callback is NULL and the
7396 usrdata argument is not NULL interpret it as a null terminated pass
7397 phrase. If usrdata and the callback are NULL then the pass phrase
7398 is prompted for as usual.
7401 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7402 the support is automatically enabled. The resulting binaries will
7403 autodetect the card and use it if present.
7404 [Ben Laurie and Compaq Inc.]
7406 *) Work around for Netscape hang bug. This sends certificate request
7407 and server done in one record. Since this is perfectly legal in the
7408 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7409 the bugs/SSLv3 entry for more info.
7412 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7415 *) Add -rand argument to smime and pkcs12 applications and read/write
7419 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7422 *) Add command line password options to the remaining applications.
7425 *) Bug fix for BN_div_recp() for numerators with an even number of
7429 *) More tests in bntest.c, and changed test_bn output.
7432 *) ./config recognizes MacOS X now.
7435 *) Bug fix for BN_div() when the first words of num and divsor are
7436 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7439 *) Add support for various broken PKCS#8 formats, and command line
7440 options to produce them.
7443 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7444 get temporary BIGNUMs from a BN_CTX.
7447 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7451 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7452 include a #define from the old name to the new. The original intent
7453 was that statically linked binaries could for example just call
7454 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7455 link with digests. This never worked becayse SSLeay_add_all_digests()
7456 and SSLeay_add_all_ciphers() were in the same source file so calling
7457 one would link with the other. They are now in separate source files.
7460 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7463 *) Use a less unusual form of the Miller-Rabin primality test (it used
7464 a binary algorithm for exponentiation integrated into the Miller-Rabin
7465 loop, our standard modexp algorithms are faster).
7468 *) Support for the EBCDIC character set completed.
7469 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7471 *) Source code cleanups: use const where appropriate, eliminate casts,
7472 use void * instead of char * in lhash.
7475 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7476 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7477 this the server could overwrite ephemeral keys that the client
7481 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7482 using 50 iterations of the Rabin-Miller test.
7484 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7485 iterations of the Rabin-Miller test as required by the appendix
7486 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7487 As BN_is_prime_fasttest includes trial division, DSA parameter
7488 generation becomes much faster.
7490 This implies a change for the callback functions in DSA_is_prime
7491 and DSA_generate_parameters: The callback function is called once
7492 for each positive witness in the Rabin-Miller test, not just
7493 occasionally in the inner loop; and the parameters to the
7494 callback function now provide an iteration count for the outer
7495 loop rather than for the current invocation of the inner loop.
7496 DSA_generate_parameters additionally can call the callback
7497 function with an 'iteration count' of -1, meaning that a
7498 candidate has passed the trial division test (when q is generated
7499 from an application-provided seed, trial division is skipped).
7502 *) New function BN_is_prime_fasttest that optionally does trial
7503 division before starting the Rabin-Miller test and has
7504 an additional BN_CTX * argument (whereas BN_is_prime always
7505 has to allocate at least one BN_CTX).
7506 'callback(1, -1, cb_arg)' is called when a number has passed the
7507 trial division stage.
7510 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7514 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7517 *) New function BN_pseudo_rand().
7520 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7521 bignum version of BN_from_montgomery() with the working code from
7522 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7526 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7527 made it impossible to use the same SSL_SESSION data structure in
7528 SSL2 clients in multiple threads.
7531 *) The return value of RAND_load_file() no longer counts bytes obtained
7532 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7533 to seed the PRNG (previously an explicit byte count was required).
7534 [Ulf Möller, Bodo Möller]
7536 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7537 used (char *) instead of (void *) and had casts all over the place.
7540 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7543 *) Retain source code compatibility for BN_prime_checks macro:
7544 BN_is_prime(..., BN_prime_checks, ...) now uses
7545 BN_prime_checks_for_size to determine the appropriate number of
7546 Rabin-Miller iterations.
7549 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7550 DH_CHECK_P_NOT_SAFE_PRIME.
7551 (Check if this is true? OpenPGP calls them "strong".)
7554 *) Merge the functionality of "dh" and "gendh" programs into a new program
7555 "dhparam". The old programs are retained for now but will handle DH keys
7556 (instead of parameters) in future.
7559 *) Make the ciphers, s_server and s_client programs check the return values
7560 when a new cipher list is set.
7563 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7564 ciphers. Before when the 56bit ciphers were enabled the sorting was
7567 The syntax for the cipher sorting has been extended to support sorting by
7568 cipher-strength (using the strength_bits hard coded in the tables).
7569 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7571 Fix a bug in the cipher-command parser: when supplying a cipher command
7572 string with an "undefined" symbol (neither command nor alphanumeric
7573 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7574 an error is flagged.
7576 Due to the strength-sorting extension, the code of the
7577 ssl_create_cipher_list() function was completely rearranged. I hope that
7578 the readability was also increased :-)
7579 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7581 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7582 for the first serial number and places 2 in the serial number file. This
7583 avoids problems when the root CA is created with serial number zero and
7584 the first user certificate has the same issuer name and serial number
7588 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7589 the new code. Add documentation for this stuff.
7592 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7593 X509_*() to X509at_*() on the grounds that they don't handle X509
7594 structures and behave in an analagous way to the X509v3 functions:
7595 they shouldn't be called directly but wrapper functions should be used
7598 So we also now have some wrapper functions that call the X509at functions
7599 when passed certificate requests. (TO DO: similar things can be done with
7600 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7601 things. Some of these need some d2i or i2d and print functionality
7602 because they handle more complex structures.)
7605 *) Add missing #ifndefs that caused missing symbols when building libssl
7606 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7607 NO_RSA in ssl/s2*.c.
7608 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7610 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7611 has a return value which indicates the quality of the random data
7612 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7613 error queue. New function RAND_pseudo_bytes() generates output that is
7614 guaranteed to be unique but not unpredictable. RAND_add is like
7615 RAND_seed, but takes an extra argument for an entropy estimate
7616 (RAND_seed always assumes full entropy).
7619 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7620 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7621 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7622 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7623 false-positive rate of at most 2^-80 for random input.
7626 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7629 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7630 in the 0.9.5 release), this returns the chain
7631 from an X509_CTX structure with a dup of the stack and all
7632 the X509 reference counts upped: so the stack will exist
7633 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7636 Also make SSL_SESSION_print() print out the verify return
7640 *) Add manpage for the pkcs12 command. Also change the default
7641 behaviour so MAC iteration counts are used unless the new
7642 -nomaciter option is used. This improves file security and
7643 only older versions of MSIE (4.0 for example) need it.
7646 *) Honor the no-xxx Configure options when creating .DEF files.
7649 *) Add PKCS#10 attributes to field table: challengePassword,
7650 unstructuredName and unstructuredAddress. These are taken from
7651 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7652 international characters are used.
7654 More changes to X509_ATTRIBUTE code: allow the setting of types
7655 based on strings. Remove the 'loc' parameter when adding
7656 attributes because these will be a SET OF encoding which is sorted
7660 *) Initial changes to the 'req' utility to allow request generation
7661 automation. This will allow an application to just generate a template
7662 file containing all the field values and have req construct the
7665 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7666 used all over the place including certificate requests and PKCS#7
7667 structures. They are currently handled manually where necessary with
7668 some primitive wrappers for PKCS#7. The new functions behave in a
7669 manner analogous to the X509 extension functions: they allow
7670 attributes to be looked up by NID and added.
7672 Later something similar to the X509V3 code would be desirable to
7673 automatically handle the encoding, decoding and printing of the
7674 more complex types. The string types like challengePassword can
7675 be handled by the string table functions.
7677 Also modified the multi byte string table handling. Now there is
7678 a 'global mask' which masks out certain types. The table itself
7679 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7680 is useful when for example there is only one permissible type
7681 (as in countryName) and using the mask might result in no valid
7685 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7686 SSL_get_peer_finished to allow applications to obtain the latest
7687 Finished messages sent to the peer or expected from the peer,
7688 respectively. (SSL_get_peer_finished is usually the Finished message
7689 actually received from the peer, otherwise the protocol will be aborted.)
7691 As the Finished message are message digests of the complete handshake
7692 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7693 be used for external authentication procedures when the authentication
7694 provided by SSL/TLS is not desired or is not enough.
7697 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7698 the host supports BWX extension and if Compaq C is present on the
7699 $PATH. Just exploiting of the BWX extension results in 20-30%
7700 performance kick for some algorithms, e.g. DES and RC4 to mention
7701 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7705 *) Add support for MS "fast SGC". This is arguably a violation of the
7706 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7707 weak crypto and after checking the certificate is SGC a second one
7708 with strong crypto. MS SGC stops the first handshake after receiving
7709 the server certificate message and sends a second client hello. Since
7710 a server will typically do all the time consuming operations before
7711 expecting any further messages from the client (server key exchange
7712 is the most expensive) there is little difference between the two.
7714 To get OpenSSL to support MS SGC we have to permit a second client
7715 hello message after we have sent server done. In addition we have to
7716 reset the MAC if we do get this second client hello.
7719 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7720 if a DER encoded private key is RSA or DSA traditional format. Changed
7721 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7722 format DER encoded private key. Newer code should use PKCS#8 format which
7723 has the key type encoded in the ASN1 structure. Added DER private key
7724 support to pkcs8 application.
7727 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7728 ciphersuites has been selected (as required by the SSL 3/TLS 1
7729 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7730 is set, we interpret this as a request to violate the specification
7731 (the worst that can happen is a handshake failure, and 'correct'
7732 behaviour would result in a handshake failure anyway).
7735 *) In SSL_CTX_add_session, take into account that there might be multiple
7736 SSL_SESSION structures with the same session ID (e.g. when two threads
7737 concurrently obtain them from an external cache).
7738 The internal cache can handle only one SSL_SESSION with a given ID,
7739 so if there's a conflict, we now throw out the old one to achieve
7743 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7744 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7745 some routines that use cipher OIDs: some ciphers do not have OIDs
7746 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7750 *) Simplify the trust setting structure and code. Now we just have
7751 two sequences of OIDs for trusted and rejected settings. These will
7752 typically have values the same as the extended key usage extension
7753 and any application specific purposes.
7755 The trust checking code now has a default behaviour: it will just
7756 check for an object with the same NID as the passed id. Functions can
7757 be provided to override either the default behaviour or the behaviour
7758 for a given id. SSL client, server and email already have functions
7759 in place for compatibility: they check the NID and also return "trusted"
7760 if the certificate is self signed.
7763 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7764 traditional format into an EVP_PKEY structure.
7767 *) Add a password callback function PEM_cb() which either prompts for
7768 a password if usr_data is NULL or otherwise assumes it is a null
7769 terminated password. Allow passwords to be passed on command line
7770 environment or config files in a few more utilities.
7773 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7774 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7775 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7776 Update documentation.
7779 *) Support for ASN1 "NULL" type. This could be handled before by using
7780 ASN1_TYPE but there wasn't any function that would try to read a NULL
7781 and produce an error if it couldn't. For compatibility we also have
7782 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7783 don't allocate anything because they don't need to.
7786 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7788 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7790 *) Rebuild of the memory allocation routines used by OpenSSL code and
7791 possibly others as well. The purpose is to make an interface that
7792 provide hooks so anyone can build a separate set of allocation and
7793 deallocation routines to be used by OpenSSL, for example memory
7794 pool implementations, or something else, which was previously hard
7795 since Malloc(), Realloc() and Free() were defined as macros having
7796 the values malloc, realloc and free, respectively (except for Win32
7797 compilations). The same is provided for memory debugging code.
7798 OpenSSL already comes with functionality to find memory leaks, but
7799 this gives people a chance to debug other memory problems.
7801 With these changes, a new set of functions and macros have appeared:
7803 CRYPTO_set_mem_debug_functions() [F]
7804 CRYPTO_get_mem_debug_functions() [F]
7805 CRYPTO_dbg_set_options() [F]
7806 CRYPTO_dbg_get_options() [F]
7807 CRYPTO_malloc_debug_init() [M]
7809 The memory debug functions are NULL by default, unless the library
7810 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7811 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7812 gives the standard debugging functions that come with OpenSSL) or
7813 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7814 provided by the library user) must be used. When the standard
7815 debugging functions are used, CRYPTO_dbg_set_options can be used to
7816 request additional information:
7817 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7818 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7820 Also, things like CRYPTO_set_mem_functions will always give the
7821 expected result (the new set of functions is used for allocation
7822 and deallocation) at all times, regardless of platform and compiler
7825 To finish it up, some functions that were never use in any other
7826 way than through macros have a new API and new semantic:
7829 CRYPTO_dbg_realloc()
7832 All macros of value have retained their old syntax.
7833 [Richard Levitte and Bodo Moeller]
7835 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7836 ordering of SMIMECapabilities wasn't in "strength order" and there
7837 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7841 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7842 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7843 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7845 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7846 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7847 functionality to handle multipart/signed properly) and a utility
7848 called 'smime' to call all this stuff. This is based on code I
7849 originally wrote for Celo who have kindly allowed it to be
7850 included in OpenSSL.
7853 *) Add variants des_set_key_checked and des_set_key_unchecked of
7854 des_set_key (aka des_key_sched). Global variable des_check_key
7855 decides which of these is called by des_set_key; this way
7856 des_check_key behaves as it always did, but applications and
7857 the library itself, which was buggy for des_check_key == 1,
7858 have a cleaner way to pick the version they need.
7861 *) New function PKCS12_newpass() which changes the password of a
7865 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7866 dynamic mix. In both cases the ids can be used as an index into the
7867 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7868 functions so they accept a list of the field values and the
7869 application doesn't need to directly manipulate the X509_TRUST
7873 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7877 *) Modify the way the V3 extension code looks up extensions. This now
7878 works in a similar way to the object code: we have some "standard"
7879 extensions in a static table which is searched with OBJ_bsearch()
7880 and the application can add dynamic ones if needed. The file
7881 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7882 updated whenever a new extension is added to the core code and kept
7883 in ext_nid order. There is a simple program 'tabtest.c' which checks
7884 this. New extensions are not added too often so this file can readily
7885 be maintained manually.
7887 There are two big advantages in doing things this way. The extensions
7888 can be looked up immediately and no longer need to be "added" using
7889 X509V3_add_standard_extensions(): this function now does nothing.
7890 [Side note: I get *lots* of email saying the extension code doesn't
7891 work because people forget to call this function]
7892 Also no dynamic allocation is done unless new extensions are added:
7893 so if we don't add custom extensions there is no need to call
7894 X509V3_EXT_cleanup().
7897 *) Modify enc utility's salting as follows: make salting the default. Add a
7898 magic header, so unsalted files fail gracefully instead of just decrypting
7899 to garbage. This is because not salting is a big security hole, so people
7900 should be discouraged from doing it.
7903 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7904 digest to be passed on the command line but it only used this
7905 parameter when signing a certificate. Modified so all relevant
7906 operations are affected by the digest parameter including the
7907 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7908 DSA key was used because it didn't fix the digest.
7911 *) Initial certificate chain verify code. Currently tests the untrusted
7912 certificates for consistency with the verify purpose (which is set
7913 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7915 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7916 this is because it will reject chains with invalid extensions whereas
7917 every previous version of OpenSSL and SSLeay made no checks at all.
7919 Trust code: checks the root CA for the relevant trust settings. Trust
7920 settings have an initial value consistent with the verify purpose: e.g.
7921 if the verify purpose is for SSL client use it expects the CA to be
7922 trusted for SSL client use. However the default value can be changed to
7923 permit custom trust settings: one example of this would be to only trust
7924 certificates from a specific "secure" set of CAs.
7926 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7927 which should be used for version portability: especially since the
7928 verify structure is likely to change more often now.
7930 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7931 to set them. If not set then assume SSL clients will verify SSL servers
7934 Two new options to the verify program: -untrusted allows a set of
7935 untrusted certificates to be passed in and -purpose which sets the
7936 intended purpose of the certificate. If a purpose is set then the
7937 new chain verify code is used to check extension consistency.
7940 *) Support for the authority information access extension.
7943 *) Modify RSA and DSA PEM read routines to transparently handle
7944 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7945 public keys in a format compatible with certificate
7946 SubjectPublicKeyInfo structures. Unfortunately there were already
7947 functions called *_PublicKey_* which used various odd formats so
7948 these are retained for compatibility: however the DSA variants were
7949 never in a public release so they have been deleted. Changed dsa/rsa
7950 utilities to handle the new format: note no releases ever handled public
7951 keys so we should be OK.
7953 The primary motivation for this change is to avoid the same fiasco
7954 that dogs private keys: there are several incompatible private key
7955 formats some of which are standard and some OpenSSL specific and
7956 require various evil hacks to allow partial transparent handling and
7957 even then it doesn't work with DER formats. Given the option anything
7958 other than PKCS#8 should be dumped: but the other formats have to
7959 stay in the name of compatibility.
7961 With public keys and the benefit of hindsight one standard format
7962 is used which works with EVP_PKEY, RSA or DSA structures: though
7963 it clearly returns an error if you try to read the wrong kind of key.
7965 Added a -pubkey option to the 'x509' utility to output the public key.
7966 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7967 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7968 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7969 that do the same as the EVP_PKEY_assign_*() except they up the
7970 reference count of the added key (they don't "swallow" the
7974 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7975 CRLs would fail if the file contained no certificates or no CRLs:
7976 added a new function to read in both types and return the number
7977 read: this means that if none are read it will be an error. The
7978 DER versions of the certificate and CRL reader would always fail
7979 because it isn't possible to mix certificates and CRLs in DER format
7980 without choking one or the other routine. Changed this to just read
7981 a certificate: this is the best we can do. Also modified the code
7982 in apps/verify.c to take notice of return codes: it was previously
7983 attempting to read in certificates from NULL pointers and ignoring
7984 any errors: this is one reason why the cert and CRL reader seemed
7985 to work. It doesn't check return codes from the default certificate
7986 routines: these may well fail if the certificates aren't installed.
7989 *) Code to support otherName option in GeneralName.
7992 *) First update to verify code. Change the verify utility
7993 so it warns if it is passed a self signed certificate:
7994 for consistency with the normal behaviour. X509_verify
7995 has been modified to it will now verify a self signed
7996 certificate if *exactly* the same certificate appears
7997 in the store: it was previously impossible to trust a
7998 single self signed certificate. This means that:
7999 openssl verify ss.pem
8000 now gives a warning about a self signed certificate but
8001 openssl verify -CAfile ss.pem ss.pem
8005 *) For servers, store verify_result in SSL_SESSION data structure
8006 (and add it to external session representation).
8007 This is needed when client certificate verifications fails,
8008 but an application-provided verification callback (set by
8009 SSL_CTX_set_cert_verify_callback) allows accepting the session
8010 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
8011 but returns 1): When the session is reused, we have to set
8012 ssl->verify_result to the appropriate error code to avoid
8014 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
8016 *) Fix a bug in the new PKCS#7 code: it didn't consider the
8017 case in PKCS7_dataInit() where the signed PKCS7 structure
8018 didn't contain any existing data because it was being created.
8019 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
8021 *) Add a salt to the key derivation routines in enc.c. This
8022 forms the first 8 bytes of the encrypted file. Also add a
8023 -S option to allow a salt to be input on the command line.
8026 *) New function X509_cmp(). Oddly enough there wasn't a function
8027 to compare two certificates. We do this by working out the SHA1
8028 hash and comparing that. X509_cmp() will be needed by the trust
8032 *) SSL_get1_session() is like SSL_get_session(), but increments
8033 the reference count in the SSL_SESSION returned.
8034 [Geoff Thorpe <geoff@eu.c2.net>]
8036 *) Fix for 'req': it was adding a null to request attributes.
8037 Also change the X509_LOOKUP and X509_INFO code to handle
8038 certificate auxiliary information.
8041 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
8045 *) Add the possibility to add extra information to the memory leak
8046 detecting output, to form tracebacks, showing from where each
8047 allocation was originated: CRYPTO_push_info("constant string") adds
8048 the string plus current file name and line number to a per-thread
8049 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
8050 is like calling CYRPTO_pop_info() until the stack is empty.
8051 Also updated memory leak detection code to be multi-thread-safe.
8054 *) Add options -text and -noout to pkcs7 utility and delete the
8055 encryption options which never did anything. Update docs.
8058 *) Add options to some of the utilities to allow the pass phrase
8059 to be included on either the command line (not recommended on
8060 OSes like Unix) or read from the environment. Update the
8061 manpages and fix a few bugs.
8064 *) Add a few manpages for some of the openssl commands.
8067 *) Fix the -revoke option in ca. It was freeing up memory twice,
8068 leaking and not finding already revoked certificates.
8071 *) Extensive changes to support certificate auxiliary information.
8072 This involves the use of X509_CERT_AUX structure and X509_AUX
8073 functions. An X509_AUX function such as PEM_read_X509_AUX()
8074 can still read in a certificate file in the usual way but it
8075 will also read in any additional "auxiliary information". By
8076 doing things this way a fair degree of compatibility can be
8077 retained: existing certificates can have this information added
8078 using the new 'x509' options.
8080 Current auxiliary information includes an "alias" and some trust
8081 settings. The trust settings will ultimately be used in enhanced
8082 certificate chain verification routines: currently a certificate
8083 can only be trusted if it is self signed and then it is trusted
8087 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
8088 The problem was that one of the replacement routines had not been working
8089 since SSLeay releases. For now the offending routine has been replaced
8090 with non-optimised assembler. Even so, this now gives around 95%
8091 performance improvement for 1024 bit RSA signs.
8094 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
8095 handling. Most clients have the effective key size in bits equal to
8096 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
8097 A few however don't do this and instead use the size of the decrypted key
8098 to determine the RC2 key length and the AlgorithmIdentifier to determine
8099 the effective key length. In this case the effective key length can still
8100 be 40 bits but the key length can be 168 bits for example. This is fixed
8101 by manually forcing an RC2 key into the EVP_PKEY structure because the
8102 EVP code can't currently handle unusual RC2 key sizes: it always assumes
8103 the key length and effective key length are equal.
8106 *) Add a bunch of functions that should simplify the creation of
8107 X509_NAME structures. Now you should be able to do:
8108 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
8109 and have it automatically work out the correct field type and fill in
8110 the structures. The more adventurous can try:
8111 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
8112 and it will (hopefully) work out the correct multibyte encoding.
8115 *) Change the 'req' utility to use the new field handling and multibyte
8116 copy routines. Before the DN field creation was handled in an ad hoc
8117 way in req, ca, and x509 which was rather broken and didn't support
8118 BMPStrings or UTF8Strings. Since some software doesn't implement
8119 BMPStrings or UTF8Strings yet, they can be enabled using the config file
8120 using the dirstring_type option. See the new comment in the default
8121 openssl.cnf for more info.
8124 *) Make crypto/rand/md_rand.c more robust:
8125 - Assure unique random numbers after fork().
8126 - Make sure that concurrent threads access the global counter and
8127 md serializably so that we never lose entropy in them
8128 or use exactly the same state in multiple threads.
8129 Access to the large state is not always serializable because
8130 the additional locking could be a performance killer, and
8131 md should be large enough anyway.
8134 *) New file apps/app_rand.c with commonly needed functionality
8135 for handling the random seed file.
8137 Use the random seed file in some applications that previously did not:
8139 dsaparam -genkey (which also ignored its '-rand' option),
8142 x509 (when signing).
8143 Except on systems with /dev/urandom, it is crucial to have a random
8144 seed file at least for key creation, DSA signing, and for DH exchanges;
8145 for RSA signatures we could do without one.
8147 gendh and gendsa (unlike genrsa) used to read only the first byte
8148 of each file listed in the '-rand' option. The function as previously
8149 found in genrsa is now in app_rand.c and is used by all programs
8150 that support '-rand'.
8153 *) In RAND_write_file, use mode 0600 for creating files;
8154 don't just chmod when it may be too late.
8157 *) Report an error from X509_STORE_load_locations
8158 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
8161 *) New function ASN1_mbstring_copy() this copies a string in either
8162 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
8163 into an ASN1_STRING type. A mask of permissible types is passed
8164 and it chooses the "minimal" type to use or an error if not type
8168 *) Add function equivalents to the various macros in asn1.h. The old
8169 macros are retained with an M_ prefix. Code inside the library can
8170 use the M_ macros. External code (including the openssl utility)
8171 should *NOT* in order to be "shared library friendly".
8174 *) Add various functions that can check a certificate's extensions
8175 to see if it usable for various purposes such as SSL client,
8176 server or S/MIME and CAs of these types. This is currently
8177 VERY EXPERIMENTAL but will ultimately be used for certificate chain
8178 verification. Also added a -purpose flag to x509 utility to
8179 print out all the purposes.
8182 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
8186 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
8187 for, obtain and decode and extension and obtain its critical flag.
8188 This allows all the necessary extension code to be handled in a
8189 single function call.
8192 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
8193 platforms. See crypto/rc4/rc4_enc.c for further details.
8196 *) New -noout option to asn1parse. This causes no output to be produced
8197 its main use is when combined with -strparse and -out to extract data
8198 from a file (which may not be in ASN.1 format).
8201 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
8202 when producing the local key id.
8203 [Richard Levitte <levitte@stacken.kth.se>]
8205 *) New option -dhparam in s_server. This allows a DH parameter file to be
8206 stated explicitly. If it is not stated then it tries the first server
8207 certificate file. The previous behaviour hard coded the filename
8211 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
8212 a public key to be input or output. For example:
8213 openssl rsa -in key.pem -pubout -out pubkey.pem
8214 Also added necessary DSA public key functions to handle this.
8217 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
8218 in the message. This was handled by allowing
8219 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
8220 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
8222 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
8223 to the end of the strings whereas this didn't. This would cause problems
8224 if strings read with d2i_ASN1_bytes() were later modified.
8225 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
8227 *) Fix for base64 decode bug. When a base64 bio reads only one line of
8228 data and it contains EOF it will end up returning an error. This is
8229 caused by input 46 bytes long. The cause is due to the way base64
8230 BIOs find the start of base64 encoded data. They do this by trying a
8231 trial decode on each line until they find one that works. When they
8232 do a flag is set and it starts again knowing it can pass all the
8233 data directly through the decoder. Unfortunately it doesn't reset
8234 the context it uses. This means that if EOF is reached an attempt
8235 is made to pass two EOFs through the context and this causes the
8236 resulting error. This can also cause other problems as well. As is
8237 usual with these problems it takes *ages* to find and the fix is
8238 trivial: move one line.
8239 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
8241 *) Ugly workaround to get s_client and s_server working under Windows. The
8242 old code wouldn't work because it needed to select() on sockets and the
8243 tty (for keypresses and to see if data could be written). Win32 only
8244 supports select() on sockets so we select() with a 1s timeout on the
8245 sockets and then see if any characters are waiting to be read, if none
8246 are present then we retry, we also assume we can always write data to
8247 the tty. This isn't nice because the code then blocks until we've
8248 received a complete line of data and it is effectively polling the
8249 keyboard at 1s intervals: however it's quite a bit better than not
8250 working at all :-) A dedicated Windows application might handle this
8251 with an event loop for example.
8254 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8255 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8256 will be called when RSA_sign() and RSA_verify() are used. This is useful
8257 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8258 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8259 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8260 This necessitated the support of an extra signature type NID_md5_sha1
8261 for SSL signatures and modifications to the SSL library to use it instead
8262 of calling RSA_public_decrypt() and RSA_private_encrypt().
8265 *) Add new -verify -CAfile and -CApath options to the crl program, these
8266 will lookup a CRL issuers certificate and verify the signature in a
8267 similar way to the verify program. Tidy up the crl program so it
8268 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8269 less strict. It will now permit CRL extensions even if it is not
8270 a V2 CRL: this will allow it to tolerate some broken CRLs.
8273 *) Initialize all non-automatic variables each time one of the openssl
8274 sub-programs is started (this is necessary as they may be started
8275 multiple times from the "OpenSSL>" prompt).
8276 [Lennart Bang, Bodo Moeller]
8278 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8279 removing all other RSA functionality (this is what NO_RSA does). This
8280 is so (for example) those in the US can disable those operations covered
8281 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8285 *) Non-copying interface to BIO pairs.
8286 (still largely untested)
8289 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8290 ASCII string. This was handled independently in various places before.
8293 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8294 UTF8 strings a character at a time.
8297 *) Use client_version from client hello to select the protocol
8298 (s23_srvr.c) and for RSA client key exchange verification
8299 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8302 *) Add various utility functions to handle SPKACs, these were previously
8303 handled by poking round in the structure internals. Added new function
8304 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8305 print, verify and generate SPKACs. Based on an original idea from
8306 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8309 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8312 *) Allow the config file extension section to be overwritten on the
8313 command line. Based on an original idea from Massimiliano Pala
8314 <madwolf@comune.modena.it>. The new option is called -extensions
8315 and can be applied to ca, req and x509. Also -reqexts to override
8316 the request extensions in req and -crlexts to override the crl extensions
8320 *) Add new feature to the SPKAC handling in ca. Now you can include
8321 the same field multiple times by preceding it by "XXXX." for example:
8324 this is the same syntax as used in the req config file.
8327 *) Allow certificate extensions to be added to certificate requests. These
8328 are specified in a 'req_extensions' option of the req section of the
8329 config file. They can be printed out with the -text option to req but
8330 are otherwise ignored at present.
8333 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8334 data read consists of only the final block it would not decrypted because
8335 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8336 A misplaced 'break' also meant the decrypted final block might not be
8337 copied until the next read.
8340 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8341 a few extra parameters to the DH structure: these will be useful if
8342 for example we want the value of 'q' or implement X9.42 DH.
8345 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8346 provides hooks that allow the default DSA functions or functions on a
8347 "per key" basis to be replaced. This allows hardware acceleration and
8348 hardware key storage to be handled without major modification to the
8349 library. Also added low level modexp hooks and CRYPTO_EX structure and
8350 associated functions.
8353 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8354 as "read only": it can't be written to and the buffer it points to will
8355 not be freed. Reading from a read only BIO is much more efficient than
8356 a normal memory BIO. This was added because there are several times when
8357 an area of memory needs to be read from a BIO. The previous method was
8358 to create a memory BIO and write the data to it, this results in two
8359 copies of the data and an O(n^2) reading algorithm. There is a new
8360 function BIO_new_mem_buf() which creates a read only memory BIO from
8361 an area of memory. Also modified the PKCS#7 routines to use read only
8365 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8366 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8367 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8368 but a retry condition occured while trying to read the rest.
8371 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8372 NID_pkcs7_encrypted by default: this was wrong since this should almost
8373 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8374 the encrypted data type: this is a more sensible place to put it and it
8375 allows the PKCS#12 code to be tidied up that duplicated this
8379 *) Changed obj_dat.pl script so it takes its input and output files on
8380 the command line. This should avoid shell escape redirection problems
8384 *) Initial support for certificate extension requests, these are included
8385 in things like Xenroll certificate requests. Included functions to allow
8386 extensions to be obtained and added.
8389 *) -crlf option to s_client and s_server for sending newlines as
8390 CRLF (as required by many protocols).
8393 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8395 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8396 [Ralf S. Engelschall]
8398 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8399 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8401 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8405 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8406 DH parameters/keys (q is lost during that conversion, but the resulting
8407 DH parameters contain its length).
8409 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8410 much faster than DH_generate_parameters (which creates parameters
8411 where p = 2*q + 1), and also the smaller q makes DH computations
8412 much more efficient (160-bit exponentiation instead of 1024-bit
8413 exponentiation); so this provides a convenient way to support DHE
8414 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8415 utter importance to use
8416 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8418 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8419 when such DH parameters are used, because otherwise small subgroup
8420 attacks may become possible!
8423 *) Avoid memory leak in i2d_DHparams.
8426 *) Allow the -k option to be used more than once in the enc program:
8427 this allows the same encrypted message to be read by multiple recipients.
8430 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8431 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8432 it will always use the numerical form of the OID, even if it has a short
8436 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8437 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8438 otherwise bn_mod_exp was called. In the case of hardware keys for example
8439 no private key components need be present and it might store extra data
8440 in the RSA structure, which cannot be accessed from bn_mod_exp.
8441 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8442 private key operations.
8445 *) Added support for SPARC Linux.
8448 *) pem_password_cb function type incompatibly changed from
8449 typedef int pem_password_cb(char *buf, int size, int rwflag);
8451 ....(char *buf, int size, int rwflag, void *userdata);
8452 so that applications can pass data to their callbacks:
8453 The PEM[_ASN1]_{read,write}... functions and macros now take an
8454 additional void * argument, which is just handed through whenever
8455 the password callback is called.
8456 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8458 New function SSL_CTX_set_default_passwd_cb_userdata.
8460 Compatibility note: As many C implementations push function arguments
8461 onto the stack in reverse order, the new library version is likely to
8462 interoperate with programs that have been compiled with the old
8463 pem_password_cb definition (PEM_whatever takes some data that
8464 happens to be on the stack as its last argument, and the callback
8465 just ignores this garbage); but there is no guarantee whatsoever that
8468 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8469 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8470 problems not only on Windows, but also on some Unix platforms.
8471 To avoid problematic command lines, these definitions are now in an
8472 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8473 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8476 *) MIPS III/IV assembler module is reimplemented.
8479 *) More DES library cleanups: remove references to srand/rand and
8480 delete an unused file.
8483 *) Add support for the the free Netwide assembler (NASM) under Win32,
8484 since not many people have MASM (ml) and it can be hard to obtain.
8485 This is currently experimental but it seems to work OK and pass all
8486 the tests. Check out INSTALL.W32 for info.
8489 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8490 without temporary keys kept an extra copy of the server key,
8491 and connections with temporary keys did not free everything in case
8495 *) New function RSA_check_key and new openssl rsa option -check
8496 for verifying the consistency of RSA keys.
8497 [Ulf Moeller, Bodo Moeller]
8499 *) Various changes to make Win32 compile work:
8500 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8501 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8502 comparison" warnings.
8503 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8506 *) Add a debugging option to PKCS#5 v2 key generation function: when
8507 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8508 derived keys are printed to stderr.
8511 *) Copy the flags in ASN1_STRING_dup().
8512 [Roman E. Pavlov <pre@mo.msk.ru>]
8514 *) The x509 application mishandled signing requests containing DSA
8515 keys when the signing key was also DSA and the parameters didn't match.
8517 It was supposed to omit the parameters when they matched the signing key:
8518 the verifying software was then supposed to automatically use the CA's
8519 parameters if they were absent from the end user certificate.
8521 Omitting parameters is no longer recommended. The test was also
8522 the wrong way round! This was probably due to unusual behaviour in
8523 EVP_cmp_parameters() which returns 1 if the parameters match.
8524 This meant that parameters were omitted when they *didn't* match and
8525 the certificate was useless. Certificates signed with 'ca' didn't have
8527 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8529 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8530 The interface is as follows:
8531 Applications can use
8532 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8533 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8534 "off" is now the default.
8535 The library internally uses
8536 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8537 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8538 to disable memory-checking temporarily.
8540 Some inconsistent states that previously were possible (and were
8541 even the default) are now avoided.
8543 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8544 with each memory chunk allocated; this is occasionally more helpful
8545 than just having a counter.
8547 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8549 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8553 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8554 which largely parallels "options", but is for changing API behaviour,
8555 whereas "options" are about protocol behaviour.
8556 Initial "mode" flags are:
8558 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8559 a single record has been written.
8560 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8561 retries use the same buffer location.
8562 (But all of the contents must be
8566 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8569 *) Fix problems with no-hmac etc.
8570 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8572 *) New functions RSA_get_default_method(), RSA_set_method() and
8573 RSA_get_method(). These allows replacement of RSA_METHODs without having
8574 to mess around with the internals of an RSA structure.
8577 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8578 Also really enable memory leak checks in openssl.c and in some
8580 [Chad C. Mulligan, Bodo Moeller]
8582 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8583 up the length of negative integers. This has now been simplified to just
8584 store the length when it is first determined and use it later, rather
8585 than trying to keep track of where data is copied and updating it to
8587 [Steve Henson, reported by Brien Wheeler
8588 <bwheeler@authentica-security.com>]
8590 *) Add a new function PKCS7_signatureVerify. This allows the verification
8591 of a PKCS#7 signature but with the signing certificate passed to the
8592 function itself. This contrasts with PKCS7_dataVerify which assumes the
8593 certificate is present in the PKCS#7 structure. This isn't always the
8594 case: certificates can be omitted from a PKCS#7 structure and be
8595 distributed by "out of band" means (such as a certificate database).
8598 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8599 function prototypes in pem.h, also change util/mkdef.pl to add the
8600 necessary function names.
8603 *) mk1mf.pl (used by Windows builds) did not properly read the
8604 options set by Configure in the top level Makefile, and Configure
8605 was not even able to write more than one option correctly.
8606 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8609 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8610 file to be loaded from a BIO or FILE pointer. The BIO version will
8611 for example allow memory BIOs to contain config info.
8614 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8615 Whoever hopes to achieve shared-library compatibility across versions
8616 must use this, not the compile-time macro.
8617 (Exercise 0.9.4: Which is the minimum library version required by
8619 Note: All this applies only to multi-threaded programs, others don't
8623 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8624 through a BIO pair triggered the default case, i.e.
8625 SSLerr(...,SSL_R_UNKNOWN_STATE).
8628 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8629 can use the SSL library even if none of the specific BIOs is
8633 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8634 for the encoded length.
8635 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8637 *) Add initial documentation of the X509V3 functions.
8640 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8641 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8642 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8643 secure PKCS#8 private key format with a high iteration count.
8646 *) Fix determination of Perl interpreter: A perl or perl5
8647 _directory_ in $PATH was also accepted as the interpreter.
8648 [Ralf S. Engelschall]
8650 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8651 wrong with it but it was very old and did things like calling
8652 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8656 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8657 to use the new extension code.
8660 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8661 with macros. This should make it easier to change their form, add extra
8662 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8666 *) Add to configuration table a new entry that can specify an alternative
8667 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8668 according to Mark Crispin <MRC@Panda.COM>.
8672 *) DES CBC did not update the IV. Weird.
8675 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8676 Changing the behaviour of the former might break existing programs --
8677 where IV updating is needed, des_ncbc_encrypt can be used.
8680 *) When bntest is run from "make test" it drives bc to check its
8681 calculations, as well as internally checking them. If an internal check
8682 fails, it needs to cause bc to give a non-zero result or make test carries
8683 on without noticing the failure. Fixed.
8686 *) DES library cleanups.
8689 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8690 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8691 ciphers. NOTE: although the key derivation function has been verified
8692 against some published test vectors it has not been extensively tested
8693 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8697 *) Instead of "mkdir -p", which is not fully portable, use new
8698 Perl script "util/mkdir-p.pl".
8701 *) Rewrite the way password based encryption (PBE) is handled. It used to
8702 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8703 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8704 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8705 the 'parameter' field of the AlgorithmIdentifier is passed to the
8706 underlying key generation function so it must do its own ASN1 parsing.
8707 This has also changed the EVP_PBE_CipherInit() function which now has a
8708 'parameter' argument instead of literal salt and iteration count values
8709 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8712 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8713 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8714 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8715 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8716 value was just used as a "magic string" and not used directly its
8717 value doesn't matter.
8720 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8724 *) "linux-sparc64" configuration (ultrapenguin).
8725 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8726 "linux-sparc" configuration.
8727 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8729 *) config now generates no-xxx options for missing ciphers.
8732 *) Support the EBCDIC character set (work in progress).
8733 File ebcdic.c not yet included because it has a different license.
8734 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8736 *) Support BS2000/OSD-POSIX.
8737 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8739 *) Make callbacks for key generation use void * instead of char *.
8742 *) Make S/MIME samples compile (not yet tested).
8745 *) Additional typesafe stacks.
8748 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8752 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8754 *) New configuration variant "sco5-gcc".
8756 *) Updated some demos.
8757 [Sean O Riordain, Wade Scholine]
8759 *) Add missing BIO_free at exit of pkcs12 application.
8762 *) Fix memory leak in conf.c.
8765 *) Updates for Win32 to assembler version of MD5.
8768 *) Set #! path to perl in apps/der_chop to where we found it
8769 instead of using a fixed path.
8772 *) SHA library changes for irix64-mips4-cc.
8775 *) Improvements for VMS support.
8779 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8781 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8782 This also avoids the problems with SC4.2 and unpatched SC5.
8783 [Andy Polyakov <appro@fy.chalmers.se>]
8785 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8786 These are required because of the typesafe stack would otherwise break
8787 existing code. If old code used a structure member which used to be STACK
8788 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8789 sk_num or sk_value it would produce an error because the num, data members
8790 are not present in STACK_OF. Now it just produces a warning. sk_set
8791 replaces the old method of assigning a value to sk_value
8792 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8793 that does this will no longer work (and should use sk_set instead) but
8794 this could be regarded as a "questionable" behaviour anyway.
8797 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8798 correctly handle encrypted S/MIME data.
8801 *) Change type of various DES function arguments from des_cblock
8802 (which means, in function argument declarations, pointer to char)
8803 to des_cblock * (meaning pointer to array with 8 char elements),
8804 which allows the compiler to do more typechecking; it was like
8805 that back in SSLeay, but with lots of ugly casts.
8807 Introduce new type const_des_cblock.
8810 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8811 problems: find RecipientInfo structure that matches recipient certificate
8812 and initialise the ASN1 structures properly based on passed cipher.
8815 *) Belatedly make the BN tests actually check the results.
8818 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8819 to and from BNs: it was completely broken. New compilation option
8820 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8821 key elements as negative integers.
8824 *) Reorganize and speed up MD5.
8825 [Andy Polyakov <appro@fy.chalmers.se>]
8828 [Richard Levitte <richard@levitte.org>]
8830 *) New option -out to asn1parse to allow the parsed structure to be
8831 output to a file. This is most useful when combined with the -strparse
8832 option to examine the output of things like OCTET STRINGS.
8835 *) Make SSL library a little more fool-proof by not requiring any longer
8836 that SSL_set_{accept,connect}_state be called before
8837 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8838 in many applications because usually everything *appeared* to work as
8839 intended anyway -- now it really works as intended).
8842 *) Move openssl.cnf out of lib/.
8845 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8846 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8847 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8848 [Ralf S. Engelschall]
8850 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8851 handle PKCS#7 enveloped data properly.
8852 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8854 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8855 copying pointers. The cert_st handling is changed by this in
8856 various ways (and thus what used to be known as ctx->default_cert
8857 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8858 any longer when s->cert does not give us what we need).
8859 ssl_cert_instantiate becomes obsolete by this change.
8860 As soon as we've got the new code right (possibly it already is?),
8861 we have solved a couple of bugs of the earlier code where s->cert
8862 was used as if it could not have been shared with other SSL structures.
8864 Note that using the SSL API in certain dirty ways now will result
8865 in different behaviour than observed with earlier library versions:
8866 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8867 does not influence s as it used to.
8869 In order to clean up things more thoroughly, inside SSL_SESSION
8870 we don't use CERT any longer, but a new structure SESS_CERT
8871 that holds per-session data (if available); currently, this is
8872 the peer's certificate chain and, for clients, the server's certificate
8873 and temporary key. CERT holds only those values that can have
8874 meaningful defaults in an SSL_CTX.
8877 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8878 from the internal representation. Various PKCS#7 fixes: remove some
8879 evil casts and set the enc_dig_alg field properly based on the signing
8883 *) Allow PKCS#12 password to be set from the command line or the
8884 environment. Let 'ca' get its config file name from the environment
8885 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8889 *) Allow certificate policies extension to use an IA5STRING for the
8890 organization field. This is contrary to the PKIX definition but
8891 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8895 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8896 without disallowing inline assembler and the like for non-pedantic builds.
8899 *) Support Borland C++ builder.
8900 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8905 *) SHA-1 cleanups and performance enhancements.
8906 [Andy Polyakov <appro@fy.chalmers.se>]
8908 *) Sparc v8plus assembler for the bignum library.
8909 [Andy Polyakov <appro@fy.chalmers.se>]
8911 *) Accept any -xxx and +xxx compiler options in Configure.
8914 *) Update HPUX configuration.
8917 *) Add missing sk_<type>_unshift() function to safestack.h
8918 [Ralf S. Engelschall]
8920 *) New function SSL_CTX_use_certificate_chain_file that sets the
8921 "extra_cert"s in addition to the certificate. (This makes sense
8922 only for "PEM" format files, as chains as a whole are not
8926 *) Support verify_depth from the SSL API.
8927 x509_vfy.c had what can be considered an off-by-one-error:
8928 Its depth (which was not part of the external interface)
8929 was actually counting the number of certificates in a chain;
8930 now it really counts the depth.
8933 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8934 instead of X509err, which often resulted in confusing error
8935 messages since the error codes are not globally unique
8936 (e.g. an alleged error in ssl3_accept when a certificate
8937 didn't match the private key).
8939 *) New function SSL_CTX_set_session_id_context that allows to set a default
8940 value (so that you don't need SSL_set_session_id_context for each
8941 connection using the SSL_CTX).
8944 *) OAEP decoding bug fix.
8947 *) Support INSTALL_PREFIX for package builders, as proposed by
8951 *) New Configure options "threads" and "no-threads". For systems
8952 where the proper compiler options are known (currently Solaris
8953 and Linux), "threads" is the default.
8956 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8959 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8960 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8961 such as /usr/local/bin.
8964 *) "make linux-shared" to build shared libraries.
8965 [Niels Poppe <niels@netbox.org>]
8967 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8970 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8971 extension adding in x509 utility.
8974 *) Remove NOPROTO sections and error code comments.
8977 *) Partial rewrite of the DEF file generator to now parse the ANSI
8981 *) New Configure options --prefix=DIR and --openssldir=DIR.
8984 *) Complete rewrite of the error code script(s). It is all now handled
8985 by one script at the top level which handles error code gathering,
8986 header rewriting and C source file generation. It should be much better
8987 than the old method: it now uses a modified version of Ulf's parser to
8988 read the ANSI prototypes in all header files (thus the old K&R definitions
8989 aren't needed for error creation any more) and do a better job of
8990 translating function codes into names. The old 'ASN1 error code imbedded
8991 in a comment' is no longer necessary and it doesn't use .err files which
8992 have now been deleted. Also the error code call doesn't have to appear all
8993 on one line (which resulted in some large lines...).
8996 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8999 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
9000 0 (which usually indicates a closed connection), but continue reading.
9003 *) Fix some race conditions.
9006 *) Add support for CRL distribution points extension. Add Certificate
9007 Policies and CRL distribution points documentation.
9010 *) Move the autogenerated header file parts to crypto/opensslconf.h.
9013 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
9014 8 of keying material. Merlin has also confirmed interop with this fix
9015 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
9016 [Merlin Hughes <merlin@baltimore.ie>]
9018 *) Fix lots of warnings.
9019 [Richard Levitte <levitte@stacken.kth.se>]
9021 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
9022 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
9023 [Richard Levitte <levitte@stacken.kth.se>]
9025 *) Fix problems with sizeof(long) == 8.
9026 [Andy Polyakov <appro@fy.chalmers.se>]
9028 *) Change functions to ANSI C.
9031 *) Fix typos in error codes.
9032 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
9034 *) Remove defunct assembler files from Configure.
9037 *) SPARC v8 assembler BIGNUM implementation.
9038 [Andy Polyakov <appro@fy.chalmers.se>]
9040 *) Support for Certificate Policies extension: both print and set.
9041 Various additions to support the r2i method this uses.
9044 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
9045 return a const string when you are expecting an allocated buffer.
9048 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
9049 types DirectoryString and DisplayText.
9052 *) Add code to allow r2i extensions to access the configuration database,
9053 add an LHASH database driver and add several ctx helper functions.
9056 *) Fix an evil bug in bn_expand2() which caused various BN functions to
9057 fail when they extended the size of a BIGNUM.
9060 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
9061 support typesafe stack.
9064 *) Fix typo in SSL_[gs]et_options().
9065 [Nils Frostberg <nils@medcom.se>]
9067 *) Delete various functions and files that belonged to the (now obsolete)
9068 old X509V3 handling code.
9071 *) New Configure option "rsaref".
9074 *) Don't auto-generate pem.h.
9077 *) Introduce type-safe ASN.1 SETs.
9080 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
9081 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
9083 *) Introduce type-safe STACKs. This will almost certainly break lots of code
9084 that links with OpenSSL (well at least cause lots of warnings), but fear
9085 not: the conversion is trivial, and it eliminates loads of evil casts. A
9086 few STACKed things have been converted already. Feel free to convert more.
9087 In the fullness of time, I'll do away with the STACK type altogether.
9090 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
9091 specified in <certfile> by updating the entry in the index.txt file.
9092 This way one no longer has to edit the index.txt file manually for
9093 revoking a certificate. The -revoke option does the gory details now.
9094 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
9096 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
9097 `-text' option at all and this way the `-noout -text' combination was
9098 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
9099 [Ralf S. Engelschall]
9101 *) Make sure a corresponding plain text error message exists for the
9102 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
9103 verify callback function determined that a certificate was revoked.
9104 [Ralf S. Engelschall]
9106 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
9107 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
9108 all available cipers including rc5, which was forgotten until now.
9109 In order to let the testing shell script know which algorithms
9110 are available, a new (up to now undocumented) command
9111 "openssl list-cipher-commands" is used.
9114 *) Bugfix: s_client occasionally would sleep in select() when
9115 it should have checked SSL_pending() first.
9118 *) New functions DSA_do_sign and DSA_do_verify to provide access to
9119 the raw DSA values prior to ASN.1 encoding.
9122 *) Tweaks to Configure
9123 [Niels Poppe <niels@netbox.org>]
9125 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
9129 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
9132 *) New config option to avoid instructions that are illegal on the 80386.
9133 The default code is faster, but requires at least a 486.
9136 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
9137 SSL2_SERVER_VERSION (not used at all) macros, which are now the
9138 same as SSL2_VERSION anyway.
9141 *) New "-showcerts" option for s_client.
9144 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
9145 application. Various cleanups and fixes.
9148 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
9149 modify error routines to work internally. Add error codes and PBE init
9150 to library startup routines.
9153 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
9154 packing functions to asn1 and evp. Changed function names and error
9155 codes along the way.
9158 *) PKCS12 integration: and so it begins... First of several patches to
9159 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
9160 objects to objects.h
9163 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
9164 and display support for Thawte strong extranet extension.
9167 *) Add LinuxPPC support.
9168 [Jeff Dubrule <igor@pobox.org>]
9170 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
9171 bn_div_words in alpha.s.
9172 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
9174 *) Make sure the RSA OAEP test is skipped under -DRSAref because
9175 OAEP isn't supported when OpenSSL is built with RSAref.
9176 [Ulf Moeller <ulf@fitug.de>]
9178 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
9179 so they no longer are missing under -DNOPROTO.
9180 [Soren S. Jorvang <soren@t.dk>]
9183 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
9185 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
9186 doesn't work when the session is reused. Coming soon!
9189 *) Fix a security hole, that allows sessions to be reused in the wrong
9190 context thus bypassing client cert protection! All software that uses
9191 client certs and session caches in multiple contexts NEEDS PATCHING to
9192 allow session reuse! A fuller solution is in the works.
9193 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
9195 *) Some more source tree cleanups (removed obsolete files
9196 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
9197 permission on "config" script to be executable) and a fix for the INSTALL
9199 [Ulf Moeller <ulf@fitug.de>]
9201 *) Remove some legacy and erroneous uses of malloc, free instead of
9203 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
9205 *) Make rsa_oaep_test return non-zero on error.
9206 [Ulf Moeller <ulf@fitug.de>]
9208 *) Add support for native Solaris shared libraries. Configure
9209 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
9210 if someone would make that last step automatic.
9211 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
9213 *) ctx_size was not built with the right compiler during "make links". Fixed.
9216 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
9217 except NULL ciphers". This means the default cipher list will no longer
9218 enable NULL ciphers. They need to be specifically enabled e.g. with
9219 the string "DEFAULT:eNULL".
9222 *) Fix to RSA private encryption routines: if p < q then it would
9223 occasionally produce an invalid result. This will only happen with
9224 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
9227 *) Be less restrictive and allow also `perl util/perlpath.pl
9228 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
9229 because this way one can also use an interpreter named `perl5' (which is
9230 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
9231 installed as `perl').
9232 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9234 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
9235 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9237 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
9238 advapi32.lib to Win32 build and change the pem test comparision
9239 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
9240 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
9241 and crypto/des/ede_cbcm_enc.c.
9244 *) DES quad checksum was broken on big-endian architectures. Fixed.
9247 *) Comment out two functions in bio.h that aren't implemented. Fix up the
9248 Win32 test batch file so it (might) work again. The Win32 test batch file
9249 is horrible: I feel ill....
9252 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
9253 in e_os.h. Audit of header files to check ANSI and non ANSI
9254 sections: 10 functions were absent from non ANSI section and not exported
9255 from Windows DLLs. Fixed up libeay.num for new functions.
9258 *) Make `openssl version' output lines consistent.
9259 [Ralf S. Engelschall]
9261 *) Fix Win32 symbol export lists for BIO functions: Added
9262 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9263 to ms/libeay{16,32}.def.
9264 [Ralf S. Engelschall]
9266 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9267 fine under Unix and passes some trivial tests I've now added. But the
9268 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9269 added to make sure no one expects that this stuff really works in the
9270 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9271 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9273 [Ralf S. Engelschall]
9275 *) Fix the generation of two part addresses in perl.
9276 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9278 *) Add config entry for Linux on MIPS.
9279 [John Tobey <jtobey@channel1.com>]
9281 *) Make links whenever Configure is run, unless we are on Windoze.
9284 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9285 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9289 *) Add a useful kludge to allow package maintainers to specify compiler and
9290 other platforms details on the command line without having to patch the
9291 Configure script everytime: One now can use ``perl Configure
9292 <id>:<details>'', i.e. platform ids are allowed to have details appended
9293 to them (seperated by colons). This is treated as there would be a static
9294 pre-configured entry in Configure's %table under key <id> with value
9295 <details> and ``perl Configure <id>'' is called. So, when you want to
9296 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9297 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9298 now, which overrides the FreeBSD-elf entry on-the-fly.
9299 [Ralf S. Engelschall]
9301 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9304 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9305 on the `perl Configure ...' command line. This way one can compile
9306 OpenSSL libraries with Position Independent Code (PIC) which is needed
9307 for linking it into DSOs.
9308 [Ralf S. Engelschall]
9310 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9314 *) Cleaned up the LICENSE document: The official contact for any license
9315 questions now is the OpenSSL core team under openssl-core@openssl.org.
9316 And add a paragraph about the dual-license situation to make sure people
9317 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9318 to the OpenSSL toolkit.
9319 [Ralf S. Engelschall]
9321 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9322 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9323 Additonally cleaned up the `make links' target: Remove unnecessary
9324 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9325 to speed processing and no longer clutter the display with confusing
9326 stuff. Instead only the actually done links are displayed.
9327 [Ralf S. Engelschall]
9329 *) Permit null encryption ciphersuites, used for authentication only. It used
9330 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9331 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9335 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9336 signed attributes when verifying signatures (this would break them),
9337 the detached data encoding was wrong and public keys obtained using
9338 X509_get_pubkey() weren't freed.
9341 *) Add text documentation for the BUFFER functions. Also added a work around
9342 to a Win95 console bug. This was triggered by the password read stuff: the
9343 last character typed gets carried over to the next fread(). If you were
9344 generating a new cert request using 'req' for example then the last
9345 character of the passphrase would be CR which would then enter the first
9349 *) Added the new `Includes OpenSSL Cryptography Software' button as
9350 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9351 button and can be used by applications based on OpenSSL to show the
9352 relationship to the OpenSSL project.
9353 [Ralf S. Engelschall]
9355 *) Remove confusing variables in function signatures in files
9356 ssl/ssl_lib.c and ssl/ssl.h.
9357 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9359 *) Don't install bss_file.c under PREFIX/include/
9360 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9362 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9363 functions that return function pointers and has support for NT specific
9364 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9365 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9366 unsigned to signed types: this was killing the Win32 compile.
9369 *) Add new certificate file to stack functions,
9370 SSL_add_dir_cert_subjects_to_stack() and
9371 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9372 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9373 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9374 This means that Apache-SSL and similar packages don't have to mess around
9375 to add as many CAs as they want to the preferred list.
9378 *) Experiment with doxygen documentation. Currently only partially applied to
9380 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9381 openssl.doxy as the configuration file.
9384 *) Get rid of remaining C++-style comments which strict C compilers hate.
9385 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9387 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9388 compiled in by default: it has problems with large keys.
9391 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9392 DH private keys and/or callback functions which directly correspond to
9393 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9394 is needed for applications which have to configure certificates on a
9395 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9397 For the RSA certificate situation is makes no difference, but
9398 for the DSA certificate situation this fixes the "no shared cipher"
9399 problem where the OpenSSL cipher selection procedure failed because the
9400 temporary keys were not overtaken from the context and the API provided
9401 no way to reconfigure them.
9402 The new functions now let applications reconfigure the stuff and they
9403 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9404 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9405 non-public-API function ssl_cert_instantiate() is used as a helper
9406 function and also to reduce code redundancy inside ssl_rsa.c.
9407 [Ralf S. Engelschall]
9409 *) Move s_server -dcert and -dkey options out of the undocumented feature
9410 area because they are useful for the DSA situation and should be
9411 recognized by the users.
9412 [Ralf S. Engelschall]
9414 *) Fix the cipher decision scheme for export ciphers: the export bits are
9415 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9416 SSL_EXP_MASK. So, the original variable has to be used instead of the
9417 already masked variable.
9418 [Richard Levitte <levitte@stacken.kth.se>]
9420 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9421 [Richard Levitte <levitte@stacken.kth.se>]
9423 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9424 from `int' to `unsigned int' because it's a length and initialized by
9425 EVP_DigestFinal() which expects an `unsigned int *'.
9426 [Richard Levitte <levitte@stacken.kth.se>]
9428 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9429 script. Instead use the usual Shell->Perl transition trick.
9430 [Ralf S. Engelschall]
9432 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9433 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9434 -noout -modulus' as it's already the case for `openssl rsa -noout
9435 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9436 currently the public key is printed (a decision which was already done by
9437 `openssl dsa -modulus' in the past) which serves a similar purpose.
9438 Additionally the NO_RSA no longer completely removes the whole -modulus
9439 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9441 [Ralf S. Engelschall]
9443 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9444 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9445 [Arne Ansper <arne@ats.cyber.ee>]
9447 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9448 to be added. Now both 'req' and 'ca' can use new objects defined in the
9452 *) Add cool BIO that does syslog (or event log on NT).
9453 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9455 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9456 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9457 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9458 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9461 *) Add preliminary config info for new extension code.
9464 *) Make RSA_NO_PADDING really use no padding.
9465 [Ulf Moeller <ulf@fitug.de>]
9467 *) Generate errors when private/public key check is done.
9470 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9471 for some CRL extensions and new objects added.
9474 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9475 key usage extension and fuller support for authority key id.
9478 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9479 padding method for RSA, which is recommended for new applications in PKCS
9480 #1 v2.0 (RFC 2437, October 1998).
9481 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9482 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9483 against Bleichbacher's attack on RSA.
9484 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9487 *) Updates to the new SSL compression code
9488 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9490 *) Fix so that the version number in the master secret, when passed
9491 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9492 (because the server will not accept higher), that the version number
9493 is 0x03,0x01, not 0x03,0x00
9494 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9496 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9497 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9498 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9501 *) Support for RAW extensions where an arbitrary extension can be
9502 created by including its DER encoding. See apps/openssl.cnf for
9506 *) Make sure latest Perl versions don't interpret some generated C array
9507 code as Perl array code in the crypto/err/err_genc.pl script.
9508 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9510 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9511 not many people have the assembler. Various Win32 compilation fixes and
9512 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9516 *) Modify configure script 'Configure' to automatically create crypto/date.h
9517 file under Win32 and also build pem.h from pem.org. New script
9518 util/mkfiles.pl to create the MINFO file on environments that can't do a
9519 'make files': perl util/mkfiles.pl >MINFO should work.
9522 *) Major rework of DES function declarations, in the pursuit of correctness
9523 and purity. As a result, many evil casts evaporated, and some weirdness,
9524 too. You may find this causes warnings in your code. Zapping your evil
9525 casts will probably fix them. Mostly.
9528 *) Fix for a typo in asn1.h. Bug fix to object creation script
9529 obj_dat.pl. It considered a zero in an object definition to mean
9530 "end of object": none of the objects in objects.h have any zeros
9531 so it wasn't spotted.
9532 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9534 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9535 Masking (CBCM). In the absence of test vectors, the best I have been able
9536 to do is check that the decrypt undoes the encrypt, so far. Send me test
9537 vectors if you have them.
9540 *) Correct calculation of key length for export ciphers (too much space was
9541 allocated for null ciphers). This has not been tested!
9544 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9545 message is now correct (it understands "crypto" and "ssl" on its
9546 command line). There is also now an "update" option. This will update
9547 the util/ssleay.num and util/libeay.num files with any new functions.
9549 perl util/mkdef.pl crypto ssl update
9550 it will update them.
9553 *) Overhauled the Perl interface (perl/*):
9554 - ported BN stuff to OpenSSL's different BN library
9555 - made the perl/ source tree CVS-aware
9556 - renamed the package from SSLeay to OpenSSL (the files still contain
9557 their history because I've copied them in the repository)
9558 - removed obsolete files (the test scripts will be replaced
9559 by better Test::Harness variants in the future)
9560 [Ralf S. Engelschall]
9562 *) First cut for a very conservative source tree cleanup:
9563 1. merge various obsolete readme texts into doc/ssleay.txt
9564 where we collect the old documents and readme texts.
9565 2. remove the first part of files where I'm already sure that we no
9566 longer need them because of three reasons: either they are just temporary
9567 files which were left by Eric or they are preserved original files where
9568 I've verified that the diff is also available in the CVS via "cvs diff
9569 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9570 the crypto/md/ stuff).
9571 [Ralf S. Engelschall]
9573 *) More extension code. Incomplete support for subject and issuer alt
9574 name, issuer and authority key id. Change the i2v function parameters
9575 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9576 what that's for :-) Fix to ASN1 macro which messed up
9577 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9580 *) Preliminary support for ENUMERATED type. This is largely copied from the
9584 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9585 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9587 *) Make sure `make rehash' target really finds the `openssl' program.
9588 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9590 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9591 like to hear about it if this slows down other processors.
9594 *) Add CygWin32 platform information to Configure script.
9595 [Alan Batie <batie@aahz.jf.intel.com>]
9597 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9598 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9600 *) New program nseq to manipulate netscape certificate sequences
9603 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9607 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9608 but the BN code had some problems that would cause failures when
9609 doing certificate verification and some other functions.
9610 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9612 *) Add ASN1 and PEM code to support netscape certificate sequences.
9615 *) Add ASN1 and PEM code to support netscape certificate sequences.
9618 *) Add several PKIX and private extended key usage OIDs.
9621 *) Modify the 'ca' program to handle the new extension code. Modify
9622 openssl.cnf for new extension format, add comments.
9625 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9626 and add a sample to openssl.cnf so req -x509 now adds appropriate
9630 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9631 error code, add initial support to X509_print() and x509 application.
9634 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9635 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9636 stuff is currently isolated and isn't even compiled yet.
9639 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9640 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9641 Removed the versions check from X509 routines when loading extensions:
9642 this allows certain broken certificates that don't set the version
9643 properly to be processed.
9646 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9647 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9648 can still be regenerated with "make depend".
9651 *) Spelling mistake in C version of CAST-128.
9652 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9654 *) Changes to the error generation code. The perl script err-code.pl
9655 now reads in the old error codes and retains the old numbers, only
9656 adding new ones if necessary. It also only changes the .err files if new
9657 codes are added. The makefiles have been modified to only insert errors
9658 when needed (to avoid needlessly modifying header files). This is done
9659 by only inserting errors if the .err file is newer than the auto generated
9660 C file. To rebuild all the error codes from scratch (the old behaviour)
9661 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9662 or delete all the .err files.
9665 *) CAST-128 was incorrectly implemented for short keys. The C version has
9666 been fixed, but is untested. The assembler versions are also fixed, but
9667 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9668 to regenerate it if needed.
9669 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9670 Hagino <itojun@kame.net>]
9672 *) File was opened incorrectly in randfile.c.
9673 [Ulf Möller <ulf@fitug.de>]
9675 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9676 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9677 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9678 al: it's just almost always a UTCTime. Note this patch adds new error
9679 codes so do a "make errors" if there are problems.
9682 *) Correct Linux 1 recognition in config.
9683 [Ulf Möller <ulf@fitug.de>]
9685 *) Remove pointless MD5 hash when using DSA keys in ca.
9686 [Anonymous <nobody@replay.com>]
9688 *) Generate an error if given an empty string as a cert directory. Also
9689 generate an error if handed NULL (previously returned 0 to indicate an
9690 error, but didn't set one).
9691 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9693 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9696 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9697 parameters. This was causing a warning which killed off the Win32 compile.
9700 *) Remove C++ style comments from crypto/bn/bn_local.h.
9701 [Neil Costigan <neil.costigan@celocom.com>]
9703 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9704 based on a text string, looking up short and long names and finally
9705 "dot" format. The "dot" format stuff didn't work. Added new function
9706 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9707 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9708 OID is not part of the table.
9711 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9712 X509_LOOKUP_by_alias().
9715 *) Sort openssl functions by name.
9718 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9719 encryption from sample DSA keys (in case anyone is interested the password
9723 *) Make _all_ *_free functions accept a NULL pointer.
9724 [Frans Heymans <fheymans@isaserver.be>]
9726 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9728 [Anonymous <nobody@replay.com>]
9730 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9731 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9733 *) Don't blow it for numeric -newkey arguments to apps/req.
9734 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9736 *) Temp key "for export" tests were wrong in s3_srvr.c.
9737 [Anonymous <nobody@replay.com>]
9739 *) Add prototype for temp key callback functions
9740 SSL_CTX_set_tmp_{rsa,dh}_callback().
9743 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9744 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9747 *) X509_name_add_entry() freed the wrong thing after an error.
9748 [Arne Ansper <arne@ats.cyber.ee>]
9750 *) rsa_eay.c would attempt to free a NULL context.
9751 [Arne Ansper <arne@ats.cyber.ee>]
9753 *) BIO_s_socket() had a broken should_retry() on Windoze.
9754 [Arne Ansper <arne@ats.cyber.ee>]
9756 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9757 [Arne Ansper <arne@ats.cyber.ee>]
9759 *) Make sure the already existing X509_STORE->depth variable is initialized
9760 in X509_STORE_new(), but document the fact that this variable is still
9761 unused in the certificate verification process.
9762 [Ralf S. Engelschall]
9764 *) Fix the various library and apps files to free up pkeys obtained from
9765 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9768 *) Fix reference counting in X509_PUBKEY_get(). This makes
9769 demos/maurice/example2.c work, amongst others, probably.
9770 [Steve Henson and Ben Laurie]
9772 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9773 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9774 are no longer created. This way we have a single and consistent command
9775 line interface `openssl <command>', similar to `cvs <command>'.
9776 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9778 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9779 BIT STRING wrapper always have zero unused bits.
9782 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9785 *) Make the top-level INSTALL documentation easier to understand.
9788 *) Makefiles updated to exit if an error occurs in a sub-directory
9789 make (including if user presses ^C) [Paul Sutton]
9791 *) Make Montgomery context stuff explicit in RSA data structure.
9794 *) Fix build order of pem and err to allow for generated pem.h.
9797 *) Fix renumbering bug in X509_NAME_delete_entry().
9800 *) Enhanced the err-ins.pl script so it makes the error library number
9801 global and can add a library name. This is needed for external ASN1 and
9802 other error libraries.
9805 *) Fixed sk_insert which never worked properly.
9808 *) Fix ASN1 macros so they can handle indefinite length construted
9809 EXPLICIT tags. Some non standard certificates use these: they can now
9813 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9814 into a single doc/ssleay.txt bundle. This way the information is still
9815 preserved but no longer messes up this directory. Now it's new room for
9816 the new set of documenation files.
9817 [Ralf S. Engelschall]
9819 *) SETs were incorrectly DER encoded. This was a major pain, because they
9820 shared code with SEQUENCEs, which aren't coded the same. This means that
9821 almost everything to do with SETs or SEQUENCEs has either changed name or
9822 number of arguments.
9823 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9825 *) Fix test data to work with the above.
9828 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9829 was already fixed by Eric for 0.9.1 it seems.
9830 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9832 *) Autodetect FreeBSD3.
9835 *) Fix various bugs in Configure. This affects the following platforms:
9839 unixware-2.0-pentium
9843 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9844 before they are needed.
9847 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9851 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9853 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9854 changed SSLeay to OpenSSL in version strings.
9855 [Ralf S. Engelschall]
9857 *) Some fixups to the top-level documents.
9860 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9861 because the symlink to include/ was missing.
9862 [Ralf S. Engelschall]
9864 *) Incorporated the popular no-RSA/DSA-only patches
9865 which allow to compile a RSA-free SSLeay.
9866 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9868 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9869 when "ssleay" is still not found.
9870 [Ralf S. Engelschall]
9872 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9873 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9875 *) Updated the README file.
9876 [Ralf S. Engelschall]
9878 *) Added various .cvsignore files in the CVS repository subdirs
9879 to make a "cvs update" really silent.
9880 [Ralf S. Engelschall]
9882 *) Recompiled the error-definition header files and added
9883 missing symbols to the Win32 linker tables.
9884 [Ralf S. Engelschall]
9886 *) Cleaned up the top-level documents;
9887 o new files: CHANGES and LICENSE
9888 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9889 o merged COPYRIGHT into LICENSE
9890 o removed obsolete TODO file
9891 o renamed MICROSOFT to INSTALL.W32
9892 [Ralf S. Engelschall]
9894 *) Removed dummy files from the 0.9.1b source tree:
9895 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9896 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9897 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9898 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9899 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9900 [Ralf S. Engelschall]
9902 *) Added various platform portability fixes.
9905 *) The Genesis of the OpenSSL rpject:
9906 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9907 Young and Tim J. Hudson created while they were working for C2Net until
9909 [The OpenSSL Project]
9912 Changes between 0.9.0b and 0.9.1b [not released]
9914 *) Updated a few CA certificates under certs/
9917 *) Changed some BIGNUM api stuff.
9920 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9921 DGUX x86, Linux Alpha, etc.
9924 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9925 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9929 *) Add -strparse option to asn1pars program which parses nested
9931 [Dr Stephen Henson <shenson@bigfoot.com>]
9933 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9936 *) DSA fix for "ca" program.
9939 *) Added "-genkey" option to "dsaparam" program.
9942 *) Added RIPE MD160 (rmd160) message digest.
9945 *) Added -a (all) option to "ssleay version" command.
9948 *) Added PLATFORM define which is the id given to Configure.
9951 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9954 *) Extended the ASN.1 parser routines.
9957 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9960 *) Added a BN_CTX to the BN library.
9963 *) Fixed the weak key values in DES library
9966 *) Changed API in EVP library for cipher aliases.
9969 *) Added support for RC2/64bit cipher.
9972 *) Converted the lhash library to the crypto/mem.c functions.
9975 *) Added more recognized ASN.1 object ids.
9978 *) Added more RSA padding checks for SSL/TLS.
9981 *) Added BIO proxy/filter functionality.
9984 *) Added extra_certs to SSL_CTX which can be used
9985 send extra CA certificates to the client in the CA cert chain sending
9986 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9989 *) Now Fortezza is denied in the authentication phase because
9990 this is key exchange mechanism is not supported by SSLeay at all.
9993 *) Additional PKCS1 checks.
9996 *) Support the string "TLSv1" for all TLS v1 ciphers.
9999 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
10000 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
10003 *) Fixed a few memory leaks.
10006 *) Fixed various code and comment typos.
10009 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
10010 bytes sent in the client random.
10011 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob