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 *) New function OPENSSL_gmtime_diff to find the difference in days
202 and seconds between two tm structures. This will be used to provide
203 additional functionality for ASN1_TIME.
206 *) Add -trusted_first option which attempts to find certificates in the
207 trusted store even if an untrusted chain is also supplied.
210 *) Initial experimental support for explicitly trusted non-root CAs.
211 OpenSSL still tries to build a complete chain to a root but if an
212 intermediate CA has a trust setting included that is used. The first
213 setting is used: whether to trust or reject.
216 *) New -verify_name option in command line utilities to set verification
220 *) Initial CMAC implementation. WARNING: EXPERIMENTAL, API MAY CHANGE.
221 Add CMAC pkey methods.
224 *) Experimental regnegotiation in s_server -www mode. If the client
225 browses /reneg connection is renegotiated. If /renegcert it is
226 renegotiated requesting a certificate.
229 *) Add an "external" session cache for debugging purposes to s_server. This
230 should help trace issues which normally are only apparent in deployed
231 multi-process servers.
234 *) Extensive audit of libcrypto with DEBUG_UNUSED. Fix many cases where
235 return value is ignored. NB. The functions RAND_add(), RAND_seed(),
236 BIO_set_cipher() and some obscure PEM functions were changed so they
237 can now return an error. The RAND changes required a change to the
238 RAND_METHOD structure.
241 *) New macro __owur for "OpenSSL Warn Unused Result". This makes use of
242 a gcc attribute to warn if the result of a function is ignored. This
243 is enable if DEBUG_UNUSED is set. Add to several functions in evp.h
244 whose return value is often ignored.
247 Changes between 1.0.0f and 1.0.1 [xx XXX xxxx]
249 *) Add TLS key material exporter from RFC 5705.
252 *) Add DTLS-SRTP negotiation from RFC 5764.
255 *) Add Next Protocol Negotiation,
256 http://tools.ietf.org/html/draft-agl-tls-nextprotoneg-00. Can be
257 disabled with a no-npn flag to config or Configure. Code donated
259 [Adam Langley <agl@google.com> and Ben Laurie]
261 *) Add optional 64-bit optimized implementations of elliptic curves NIST-P224,
262 NIST-P256, NIST-P521, with constant-time single point multiplication on
263 typical inputs. Compiler support for the nonstandard type __uint128_t is
264 required to use this (present in gcc 4.4 and later, for 64-bit builds).
265 Code made available under Apache License version 2.0.
267 Specify "enable-ec_nistp_64_gcc_128" on the Configure (or config) command
268 line to include this in your build of OpenSSL, and run "make depend" (or
269 "make update"). This enables the following EC_METHODs:
271 EC_GFp_nistp224_method()
272 EC_GFp_nistp256_method()
273 EC_GFp_nistp521_method()
275 EC_GROUP_new_by_curve_name() will automatically use these (while
276 EC_GROUP_new_curve_GFp() currently prefers the more flexible
278 [Emilia Käsper, Adam Langley, Bodo Moeller (Google)]
280 *) Use type ossl_ssize_t instad of ssize_t which isn't available on
281 all platforms. Move ssize_t definition from e_os.h to the public
282 header file e_os2.h as it now appears in public header file cms.h
285 *) New -sigopt option to the ca, req and x509 utilities. Additional
286 signature parameters can be passed using this option and in
290 *) Add RSA PSS signing function. This will generate and set the
291 appropriate AlgorithmIdentifiers for PSS based on those in the
292 corresponding EVP_MD_CTX structure. No application support yet.
295 *) Support for companion algorithm specific ASN1 signing routines.
296 New function ASN1_item_sign_ctx() signs a pre-initialised
297 EVP_MD_CTX structure and sets AlgorithmIdentifiers based on
298 the appropriate parameters.
301 *) Add new algorithm specific ASN1 verification initialisation function
302 to EVP_PKEY_ASN1_METHOD: this is not in EVP_PKEY_METHOD since the ASN1
303 handling will be the same no matter what EVP_PKEY_METHOD is used.
304 Add a PSS handler to support verification of PSS signatures: checked
305 against a number of sample certificates.
308 *) Add signature printing for PSS. Add PSS OIDs.
309 [Steve Henson, Martin Kaiser <lists@kaiser.cx>]
311 *) Add algorithm specific signature printing. An individual ASN1 method
312 can now print out signatures instead of the standard hex dump.
314 More complex signatures (e.g. PSS) can print out more meaningful
315 information. Include DSA version that prints out the signature
319 *) Password based recipient info support for CMS library: implementing
323 *) Split password based encryption into PBES2 and PBKDF2 functions. This
324 neatly separates the code into cipher and PBE sections and is required
325 for some algorithms that split PBES2 into separate pieces (such as
329 *) Session-handling fixes:
330 - Fix handling of connections that are resuming with a session ID,
331 but also support Session Tickets.
332 - Fix a bug that suppressed issuing of a new ticket if the client
333 presented a ticket with an expired session.
334 - Try to set the ticket lifetime hint to something reasonable.
335 - Make tickets shorter by excluding irrelevant information.
336 - On the client side, don't ignore renewed tickets.
337 [Adam Langley, Bodo Moeller (Google)]
339 *) Fix PSK session representation.
342 *) Add RC4-MD5 and AESNI-SHA1 "stitched" implementations.
344 This work was sponsored by Intel.
347 *) Add GCM support to TLS library. Some custom code is needed to split
348 the IV between the fixed (from PRF) and explicit (from TLS record)
349 portions. This adds all GCM ciphersuites supported by RFC5288 and
350 RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
351 add a special AESGCM string for GCM only.
354 *) Expand range of ctrls for AES GCM. Permit setting invocation
355 field on decrypt and retrieval of invocation field only on encrypt.
358 *) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
359 As required by RFC5289 these ciphersuites cannot be used if for
360 versions of TLS earlier than 1.2.
363 *) For FIPS capable OpenSSL interpret a NULL default public key method
364 as unset and return the appopriate default but do *not* set the default.
365 This means we can return the appopriate method in applications that
366 swicth between FIPS and non-FIPS modes.
369 *) Redirect HMAC and CMAC operations to FIPS module in FIPS mode. If an
370 ENGINE is used then we cannot handle that in the FIPS module so we
371 keep original code iff non-FIPS operations are allowed.
374 *) Add -attime option to openssl verify.
375 [Peter Eckersley <pde@eff.org> and Ben Laurie]
377 *) Redirect DSA and DH operations to FIPS module in FIPS mode.
380 *) Redirect ECDSA and ECDH operations to FIPS module in FIPS mode. Also use
381 FIPS EC methods unconditionally for now.
384 *) New build option no-ec2m to disable characteristic 2 code.
387 *) Backport libcrypto audit of return value checking from 1.1.0-dev; not
388 all cases can be covered as some introduce binary incompatibilities.
391 *) Redirect RSA operations to FIPS module including keygen,
392 encrypt, decrypt, sign and verify. Block use of non FIPS RSA methods.
395 *) Add similar low level API blocking to ciphers.
398 *) Low level digest APIs are not approved in FIPS mode: any attempt
399 to use these will cause a fatal error. Applications that *really* want
400 to use them can use the private_* version instead.
403 *) Redirect cipher operations to FIPS module for FIPS builds.
406 *) Redirect digest operations to FIPS module for FIPS builds.
409 *) Update build system to add "fips" flag which will link in fipscanister.o
410 for static and shared library builds embedding a signature if needed.
413 *) Output TLS supported curves in preference order instead of numerical
414 order. This is currently hardcoded for the highest order curves first.
415 This should be configurable so applications can judge speed vs strength.
418 *) Add TLS v1.2 server support for client authentication.
421 *) Add support for FIPS mode in ssl library: disable SSLv3, non-FIPS ciphers
425 *) Functions FIPS_mode_set() and FIPS_mode() which call the underlying
426 FIPS modules versions.
429 *) Add TLS v1.2 client side support for client authentication. Keep cache
430 of handshake records longer as we don't know the hash algorithm to use
431 until after the certificate request message is received.
434 *) Initial TLS v1.2 client support. Add a default signature algorithms
435 extension including all the algorithms we support. Parse new signature
436 format in client key exchange. Relax some ECC signing restrictions for
437 TLS v1.2 as indicated in RFC5246.
440 *) Add server support for TLS v1.2 signature algorithms extension. Switch
441 to new signature format when needed using client digest preference.
442 All server ciphersuites should now work correctly in TLS v1.2. No client
443 support yet and no support for client certificates.
446 *) Initial TLS v1.2 support. Add new SHA256 digest to ssl code, switch
447 to SHA256 for PRF when using TLS v1.2 and later. Add new SHA256 based
448 ciphersuites. At present only RSA key exchange ciphersuites work with
449 TLS v1.2. Add new option for TLS v1.2 replacing the old and obsolete
450 SSL_OP_PKCS1_CHECK flags with SSL_OP_NO_TLSv1_2. New TLSv1.2 methods
451 and version checking.
454 *) New option OPENSSL_NO_SSL_INTERN. If an application can be compiled
455 with this defined it will not be affected by any changes to ssl internal
456 structures. Add several utility functions to allow openssl application
457 to work with OPENSSL_NO_SSL_INTERN defined.
461 [Tom Wu <tjw@cs.stanford.edu> and Ben Laurie]
463 *) Add functions to copy EVP_PKEY_METHOD and retrieve flags and id.
466 *) Permit abbreviated handshakes when renegotiating using the function
467 SSL_renegotiate_abbreviated().
468 [Robin Seggelmann <seggelmann@fh-muenster.de>]
470 *) Add call to ENGINE_register_all_complete() to
471 ENGINE_load_builtin_engines(), so some implementations get used
472 automatically instead of needing explicit application support.
475 *) Add support for TLS key exporter as described in RFC5705.
476 [Robin Seggelmann <seggelmann@fh-muenster.de>, Steve Henson]
478 *) Initial TLSv1.1 support. Since TLSv1.1 is very similar to TLS v1.0 only
479 a few changes are required:
481 Add SSL_OP_NO_TLSv1_1 flag.
483 Update version checking logic to handle version 1.1.
484 Add explicit IV handling (ported from DTLS code).
485 Add command line options to s_client/s_server.
488 Changes between 1.0.0e and 1.0.0f [xx XXX xxxx]
490 *) Fix the BIO_f_buffer() implementation (which was mixing different
491 interpretations of the '..._len' fields).
492 [Adam Langley (Google)]
494 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
495 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
496 threads won't reuse the same blinding coefficients.
498 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
499 lock to call BN_BLINDING_invert_ex, and avoids one use of
500 BN_BLINDING_update for each BN_BLINDING structure (previously,
501 the last update always remained unused).
502 [Emilia Käsper (Google)]
504 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
505 [Bob Buckholz (Google)]
507 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
509 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
510 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
511 [Kaspar Brand <ossl@velox.ch>]
513 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
514 for multi-threaded use of ECDH. (CVE-2011-3210)
515 [Adam Langley (Google)]
517 *) Fix x509_name_ex_d2i memory leak on bad inputs.
520 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
521 signature public key algorithm by using OID xref utilities instead.
522 Before this you could only use some ECC ciphersuites with SHA1 only.
525 *) Add protection against ECDSA timing attacks as mentioned in the paper
526 by Billy Bob Brumley and Nicola Tuveri, see:
528 http://eprint.iacr.org/2011/232.pdf
530 [Billy Bob Brumley and Nicola Tuveri]
532 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
534 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
535 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
537 *) Fix bug in string printing code: if *any* escaping is enabled we must
538 escape the escape character (backslash) or the resulting string is
542 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
544 *) Disable code workaround for ancient and obsolete Netscape browsers
545 and servers: an attacker can use it in a ciphersuite downgrade attack.
546 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
549 *) Fixed J-PAKE implementation error, originally discovered by
550 Sebastien Martini, further info and confirmation from Stefan
551 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
554 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
556 *) Fix extension code to avoid race conditions which can result in a buffer
557 overrun vulnerability: resumed sessions must not be modified as they can
558 be shared by multiple threads. CVE-2010-3864
561 *) Fix WIN32 build system to correctly link an ENGINE directory into
565 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
567 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
569 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
571 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
573 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
574 context. The operation can be customised via the ctrl mechanism in
575 case ENGINEs want to include additional functionality.
578 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
581 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
582 output hashes compatible with older versions of OpenSSL.
583 [Willy Weisz <weisz@vcpc.univie.ac.at>]
585 *) Fix compression algorithm handling: if resuming a session use the
586 compression algorithm of the resumed session instead of determining
587 it from client hello again. Don't allow server to change algorithm.
590 *) Add load_crls() function to apps tidying load_certs() too. Add option
591 to verify utility to allow additional CRLs to be included.
594 *) Update OCSP request code to permit adding custom headers to the request:
595 some responders need this.
598 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
600 [Julia Lawall <julia@diku.dk>]
602 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
603 needlessly dereferenced structures, used obsolete functions and
604 didn't handle all updated verify codes correctly.
607 *) Disable MD2 in the default configuration.
610 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
611 indicate the initial BIO being pushed or popped. This makes it possible
612 to determine whether the BIO is the one explicitly called or as a result
613 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
614 it handles reference counts correctly and doesn't zero out the I/O bio
615 when it is not being explicitly popped. WARNING: applications which
616 included workarounds for the old buggy behaviour will need to be modified
617 or they could free up already freed BIOs.
620 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
621 renaming to all platforms (within the 0.9.8 branch, this was
622 done conditionally on Netware platforms to avoid a name clash).
623 [Guenter <lists@gknw.net>]
625 *) Add ECDHE and PSK support to DTLS.
626 [Michael Tuexen <tuexen@fh-muenster.de>]
628 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
632 *) Add "missing" function EVP_MD_flags() (without this the only way to
633 retrieve a digest flags is by accessing the structure directly. Update
634 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
635 or cipher is registered as in the "from" argument. Print out all
636 registered digests in the dgst usage message instead of manually
637 attempting to work them out.
640 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
641 this allows the use of compression and extensions. Change default cipher
642 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
643 by default unless an application cipher string requests it.
646 *) Alter match criteria in PKCS12_parse(). It used to try to use local
647 key ids to find matching certificates and keys but some PKCS#12 files
648 don't follow the (somewhat unwritten) rules and this strategy fails.
649 Now just gather all certificates together and the first private key
650 then look for the first certificate that matches the key.
653 *) Support use of registered digest and cipher names for dgst and cipher
654 commands instead of having to add each one as a special case. So now
661 openssl dgst -sha256 foo
663 and this works for ENGINE based algorithms too.
667 *) Update Gost ENGINE to support parameter files.
668 [Victor B. Wagner <vitus@cryptocom.ru>]
670 *) Support GeneralizedTime in ca utility.
671 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
673 *) Enhance the hash format used for certificate directory links. The new
674 form uses the canonical encoding (meaning equivalent names will work
675 even if they aren't identical) and uses SHA1 instead of MD5. This form
676 is incompatible with the older format and as a result c_rehash should
677 be used to rebuild symbolic links.
680 *) Make PKCS#8 the default write format for private keys, replacing the
681 traditional format. This form is standardised, more secure and doesn't
682 include an implicit MD5 dependency.
685 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
686 committed to OpenSSL should pass this lot as a minimum.
689 *) Add session ticket override functionality for use by EAP-FAST.
690 [Jouni Malinen <j@w1.fi>]
692 *) Modify HMAC functions to return a value. Since these can be implemented
693 in an ENGINE errors can occur.
696 *) Type-checked OBJ_bsearch_ex.
699 *) Type-checked OBJ_bsearch. Also some constification necessitated
700 by type-checking. Still to come: TXT_DB, bsearch(?),
701 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
705 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
706 seconds to a tm structure directly, instead of going through OS
707 specific date routines. This avoids any issues with OS routines such
708 as the year 2038 bug. New *_adj() functions for ASN1 time structures
709 and X509_time_adj_ex() to cover the extended range. The existing
710 X509_time_adj() is still usable and will no longer have any date issues.
713 *) Delta CRL support. New use deltas option which will attempt to locate
714 and search any appropriate delta CRLs available.
716 This work was sponsored by Google.
719 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
720 code and add additional score elements. Validate alternate CRL paths
721 as part of the CRL checking and indicate a new error "CRL path validation
722 error" in this case. Applications wanting additional details can use
723 the verify callback and check the new "parent" field. If this is not
724 NULL CRL path validation is taking place. Existing applications wont
725 see this because it requires extended CRL support which is off by
728 This work was sponsored by Google.
731 *) Support for freshest CRL extension.
733 This work was sponsored by Google.
736 *) Initial indirect CRL support. Currently only supported in the CRLs
737 passed directly and not via lookup. Process certificate issuer
738 CRL entry extension and lookup CRL entries by bother issuer name
739 and serial number. Check and process CRL issuer entry in IDP extension.
741 This work was sponsored by Google.
744 *) Add support for distinct certificate and CRL paths. The CRL issuer
745 certificate is validated separately in this case. Only enabled if
746 an extended CRL support flag is set: this flag will enable additional
747 CRL functionality in future.
749 This work was sponsored by Google.
752 *) Add support for policy mappings extension.
754 This work was sponsored by Google.
757 *) Fixes to pathlength constraint, self issued certificate handling,
758 policy processing to align with RFC3280 and PKITS tests.
760 This work was sponsored by Google.
763 *) Support for name constraints certificate extension. DN, email, DNS
764 and URI types are currently supported.
766 This work was sponsored by Google.
769 *) To cater for systems that provide a pointer-based thread ID rather
770 than numeric, deprecate the current numeric thread ID mechanism and
771 replace it with a structure and associated callback type. This
772 mechanism allows a numeric "hash" to be extracted from a thread ID in
773 either case, and on platforms where pointers are larger than 'long',
774 mixing is done to help ensure the numeric 'hash' is usable even if it
775 can't be guaranteed unique. The default mechanism is to use "&errno"
776 as a pointer-based thread ID to distinguish between threads.
778 Applications that want to provide their own thread IDs should now use
779 CRYPTO_THREADID_set_callback() to register a callback that will call
780 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
782 Note that ERR_remove_state() is now deprecated, because it is tied
783 to the assumption that thread IDs are numeric. ERR_remove_state(0)
784 to free the current thread's error state should be replaced by
785 ERR_remove_thread_state(NULL).
787 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
788 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
789 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
790 application was previously providing a numeric thread callback that
791 was inappropriate for distinguishing threads, then uniqueness might
792 have been obtained with &errno that happened immediately in the
793 intermediate development versions of OpenSSL; this is no longer the
794 case, the numeric thread callback will now override the automatic use
796 [Geoff Thorpe, with help from Bodo Moeller]
798 *) Initial support for different CRL issuing certificates. This covers a
799 simple case where the self issued certificates in the chain exist and
800 the real CRL issuer is higher in the existing chain.
802 This work was sponsored by Google.
805 *) Removed effectively defunct crypto/store from the build.
808 *) Revamp of STACK to provide stronger type-checking. Still to come:
809 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
810 ASN1_STRING, CONF_VALUE.
813 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
814 RAM on SSL connections. This option can save about 34k per idle SSL.
817 *) Revamp of LHASH to provide stronger type-checking. Still to come:
818 STACK, TXT_DB, bsearch, qsort.
821 *) Initial support for Cryptographic Message Syntax (aka CMS) based
822 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
823 support for data, signedData, compressedData, digestedData and
824 encryptedData, envelopedData types included. Scripts to check against
825 RFC4134 examples draft and interop and consistency checks of many
826 content types and variants.
829 *) Add options to enc utility to support use of zlib compression BIO.
832 *) Extend mk1mf to support importing of options and assembly language
833 files from Configure script, currently only included in VC-WIN32.
834 The assembly language rules can now optionally generate the source
835 files from the associated perl scripts.
838 *) Implement remaining functionality needed to support GOST ciphersuites.
839 Interop testing has been performed using CryptoPro implementations.
840 [Victor B. Wagner <vitus@cryptocom.ru>]
842 *) s390x assembler pack.
845 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
849 *) Implement Opaque PRF Input TLS extension as specified in
850 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
851 official specification yet and no extension type assignment by
852 IANA exists, this extension (for now) will have to be explicitly
853 enabled when building OpenSSL by providing the extension number
854 to use. For example, specify an option
856 -DTLSEXT_TYPE_opaque_prf_input=0x9527
858 to the "config" or "Configure" script to enable the extension,
859 assuming extension number 0x9527 (which is a completely arbitrary
860 and unofficial assignment based on the MD5 hash of the Internet
861 Draft). Note that by doing so, you potentially lose
862 interoperability with other TLS implementations since these might
863 be using the same extension number for other purposes.
865 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
866 opaque PRF input value to use in the handshake. This will create
867 an interal copy of the length-'len' string at 'src', and will
868 return non-zero for success.
870 To get more control and flexibility, provide a callback function
873 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
874 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
878 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
881 Callback function 'cb' will be called in handshakes, and is
882 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
883 Argument 'arg' is for application purposes (the value as given to
884 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
885 be provided to the callback function). The callback function
886 has to return non-zero to report success: usually 1 to use opaque
887 PRF input just if possible, or 2 to enforce use of the opaque PRF
888 input. In the latter case, the library will abort the handshake
889 if opaque PRF input is not successfully negotiated.
891 Arguments 'peerinput' and 'len' given to the callback function
892 will always be NULL and 0 in the case of a client. A server will
893 see the client's opaque PRF input through these variables if
894 available (NULL and 0 otherwise). Note that if the server
895 provides an opaque PRF input, the length must be the same as the
896 length of the client's opaque PRF input.
898 Note that the callback function will only be called when creating
899 a new session (session resumption can resume whatever was
900 previously negotiated), and will not be called in SSL 2.0
901 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
902 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
903 for applications that need to enforce opaque PRF input.
907 *) Update ssl code to support digests other than SHA1+MD5 for handshake
910 [Victor B. Wagner <vitus@cryptocom.ru>]
912 *) Add RFC4507 support to OpenSSL. This includes the corrections in
913 RFC4507bis. The encrypted ticket format is an encrypted encoded
914 SSL_SESSION structure, that way new session features are automatically
917 If a client application caches session in an SSL_SESSION structure
918 support is transparent because tickets are now stored in the encoded
921 The SSL_CTX structure automatically generates keys for ticket
922 protection in servers so again support should be possible
923 with no application modification.
925 If a client or server wishes to disable RFC4507 support then the option
926 SSL_OP_NO_TICKET can be set.
928 Add a TLS extension debugging callback to allow the contents of any client
929 or server extensions to be examined.
931 This work was sponsored by Google.
934 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
935 OpenSSL should now compile cleanly on gcc 4.2
936 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
938 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
939 support including streaming MAC support: this is required for GOST
941 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
943 *) Add option -stream to use PKCS#7 streaming in smime utility. New
944 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
945 to output in BER and PEM format.
948 *) Experimental support for use of HMAC via EVP_PKEY interface. This
949 allows HMAC to be handled via the EVP_DigestSign*() interface. The
950 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
951 ENGINE support for HMAC keys which are unextractable. New -mac and
952 -macopt options to dgst utility.
955 *) New option -sigopt to dgst utility. Update dgst to use
956 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
957 alternative signing paramaters such as X9.31 or PSS in the dgst
961 *) Change ssl_cipher_apply_rule(), the internal function that does
962 the work each time a ciphersuite string requests enabling
963 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
964 removing ("!foo+bar") a class of ciphersuites: Now it maintains
965 the order of disabled ciphersuites such that those ciphersuites
966 that most recently went from enabled to disabled not only stay
967 in order with respect to each other, but also have higher priority
968 than other disabled ciphersuites the next time ciphersuites are
971 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
972 the same ciphersuites as with "HIGH" alone, but in a specific
973 order where the PSK ciphersuites come first (since they are the
974 most recently disabled ciphersuites when "HIGH" is parsed).
976 Also, change ssl_create_cipher_list() (using this new
977 funcionality) such that between otherwise identical
978 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
982 *) Change ssl_create_cipher_list() so that it automatically
983 arranges the ciphersuites in reasonable order before starting
984 to process the rule string. Thus, the definition for "DEFAULT"
985 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
986 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
987 This makes it much easier to arrive at a reasonable default order
988 in applications for which anonymous ciphers are OK (meaning
989 that you can't actually use DEFAULT).
990 [Bodo Moeller; suggested by Victor Duchovni]
992 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
993 processing) into multiple integers instead of setting
994 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
995 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
996 (These masks as well as the individual bit definitions are hidden
997 away into the non-exported interface ssl/ssl_locl.h, so this
998 change to the definition of the SSL_CIPHER structure shouldn't
999 affect applications.) This give us more bits for each of these
1000 categories, so there is no longer a need to coagulate AES128 and
1001 AES256 into a single algorithm bit, and to coagulate Camellia128
1002 and Camellia256 into a single algorithm bit, which has led to all
1005 Thus, among other things, the kludge introduced in 0.9.7m and
1006 0.9.8e for masking out AES256 independently of AES128 or masking
1007 out Camellia256 independently of AES256 is not needed here in 0.9.9.
1009 With the change, we also introduce new ciphersuite aliases that
1010 so far were missing: "AES128", "AES256", "CAMELLIA128", and
1014 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
1015 Use the leftmost N bytes of the signature input if the input is
1016 larger than the prime q (with N being the size in bytes of q).
1019 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
1020 it yet and it is largely untested.
1023 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
1026 *) Initial incomplete changes to avoid need for function casts in OpenSSL
1027 some compilers (gcc 4.2 and later) reject their use. Safestack is
1028 reimplemented. Update ASN1 to avoid use of legacy functions.
1031 *) Win32/64 targets are linked with Winsock2.
1034 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
1035 to external functions. This can be used to increase CRL handling
1036 efficiency especially when CRLs are very large by (for example) storing
1037 the CRL revoked certificates in a database.
1040 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
1041 new CRLs added to a directory can be used. New command line option
1042 -verify_return_error to s_client and s_server. This causes real errors
1043 to be returned by the verify callback instead of carrying on no matter
1044 what. This reflects the way a "real world" verify callback would behave.
1047 *) GOST engine, supporting several GOST algorithms and public key formats.
1048 Kindly donated by Cryptocom.
1051 *) Partial support for Issuing Distribution Point CRL extension. CRLs
1052 partitioned by DP are handled but no indirect CRL or reason partitioning
1053 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
1054 selected via a scoring technique which handles IDP and AKID in CRLs.
1057 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
1058 will ultimately be used for all verify operations: this will remove the
1059 X509_STORE dependency on certificate verification and allow alternative
1060 lookup methods. X509_STORE based implementations of these two callbacks.
1063 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
1064 Modify get_crl() to find a valid (unexpired) CRL if possible.
1067 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
1068 this would be called X509_CRL_cmp() but that name is already used by
1069 a function that just compares CRL issuer names. Cache several CRL
1070 extensions in X509_CRL structure and cache CRLDP in X509.
1073 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
1074 this maps equivalent X509_NAME structures into a consistent structure.
1075 Name comparison can then be performed rapidly using memcmp().
1078 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
1082 *) Allow digests to supply their own micalg string for S/MIME type using
1083 the ctrl EVP_MD_CTRL_MICALG.
1086 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
1087 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
1088 ctrl. It can then customise the structure before and/or after signing
1092 *) New function OBJ_add_sigid() to allow application defined signature OIDs
1093 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
1094 to free up any added signature OIDs.
1097 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
1098 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
1099 digest and cipher tables. New options added to openssl utility:
1100 list-message-digest-algorithms and list-cipher-algorithms.
1103 *) Change the array representation of binary polynomials: the list
1104 of degrees of non-zero coefficients is now terminated with -1.
1105 Previously it was terminated with 0, which was also part of the
1106 value; thus, the array representation was not applicable to
1107 polynomials where t^0 has coefficient zero. This change makes
1108 the array representation useful in a more general context.
1111 *) Various modifications and fixes to SSL/TLS cipher string
1112 handling. For ECC, the code now distinguishes between fixed ECDH
1113 with RSA certificates on the one hand and with ECDSA certificates
1114 on the other hand, since these are separate ciphersuites. The
1115 unused code for Fortezza ciphersuites has been removed.
1117 For consistency with EDH, ephemeral ECDH is now called "EECDH"
1118 (not "ECDHE"). For consistency with the code for DH
1119 certificates, use of ECDH certificates is now considered ECDH
1120 authentication, not RSA or ECDSA authentication (the latter is
1121 merely the CA's signing algorithm and not actively used in the
1124 The temporary ciphersuite alias "ECCdraft" is no longer
1125 available, and ECC ciphersuites are no longer excluded from "ALL"
1126 and "DEFAULT". The following aliases now exist for RFC 4492
1127 ciphersuites, most of these by analogy with the DH case:
1129 kECDHr - ECDH cert, signed with RSA
1130 kECDHe - ECDH cert, signed with ECDSA
1131 kECDH - ECDH cert (signed with either RSA or ECDSA)
1132 kEECDH - ephemeral ECDH
1133 ECDH - ECDH cert or ephemeral ECDH
1139 AECDH - anonymous ECDH
1140 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
1144 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
1145 Use correct micalg parameters depending on digest(s) in signed message.
1148 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
1149 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
1152 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
1153 an engine to register a method. Add ENGINE lookups for methods and
1154 functional reference processing.
1157 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
1158 EVP_{Sign,Verify}* which allow an application to customise the signature
1162 *) New -resign option to smime utility. This adds one or more signers
1163 to an existing PKCS#7 signedData structure. Also -md option to use an
1164 alternative message digest algorithm for signing.
1167 *) Tidy up PKCS#7 routines and add new functions to make it easier to
1168 create PKCS7 structures containing multiple signers. Update smime
1169 application to support multiple signers.
1172 *) New -macalg option to pkcs12 utility to allow setting of an alternative
1176 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
1177 Reorganize PBE internals to lookup from a static table using NIDs,
1178 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
1179 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
1180 PRF which will be automatically used with PBES2.
1183 *) Replace the algorithm specific calls to generate keys in "req" with the
1187 *) Update PKCS#7 enveloped data routines to use new API. This is now
1188 supported by any public key method supporting the encrypt operation. A
1189 ctrl is added to allow the public key algorithm to examine or modify
1190 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
1194 *) Add a ctrl to asn1 method to allow a public key algorithm to express
1195 a default digest type to use. In most cases this will be SHA1 but some
1196 algorithms (such as GOST) need to specify an alternative digest. The
1197 return value indicates how strong the prefernce is 1 means optional and
1198 2 is mandatory (that is it is the only supported type). Modify
1199 ASN1_item_sign() to accept a NULL digest argument to indicate it should
1200 use the default md. Update openssl utilities to use the default digest
1201 type for signing if it is not explicitly indicated.
1204 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
1205 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
1206 signing method from the key type. This effectively removes the link
1207 between digests and public key types.
1210 *) Add an OID cross reference table and utility functions. Its purpose is to
1211 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1212 rsaEncryption. This will allow some of the algorithm specific hackery
1213 needed to use the correct OID to be removed.
1216 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1217 structures for PKCS7_sign(). They are now set up by the relevant public
1221 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1224 *) Add support for key derivation (agreement) in the API, DH method and
1228 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1229 public and private key formats. As a side effect these add additional
1230 command line functionality not previously available: DSA signatures can be
1231 generated and verified using pkeyutl and DH key support and generation in
1236 [Oliver Tappe <zooey@hirschkaefer.de>]
1238 *) New make target "install_html_docs" installs HTML renditions of the
1240 [Oliver Tappe <zooey@hirschkaefer.de>]
1242 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1243 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1244 support key and parameter generation and add initial key generation
1245 functionality for RSA.
1248 *) Add functions for main EVP_PKEY_method operations. The undocumented
1249 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1250 EVP_PKEY_{encrypt,decrypt}_old.
1253 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1254 key API, doesn't do much yet.
1257 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1258 public key algorithms. New option to openssl utility:
1259 "list-public-key-algorithms" to print out info.
1262 *) Implement the Supported Elliptic Curves Extension for
1263 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1266 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1267 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1270 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1271 utilities such as rsa, dsa, dsaparam etc except they process any key
1275 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1276 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1277 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1281 *) Initial support for pluggable public key ASN1.
1282 De-spaghettify the public key ASN1 handling. Move public and private
1283 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1284 algorithm specific handling to a single module within the relevant
1285 algorithm directory. Add functions to allow (near) opaque processing
1286 of public and private key structures.
1289 *) Implement the Supported Point Formats Extension for
1290 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1293 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1294 for the psk identity [hint] and the psk callback functions to the
1295 SSL_SESSION, SSL and SSL_CTX structure.
1298 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1302 SSL_CTX_use_psk_identity_hint
1303 SSL_get_psk_identity_hint
1304 SSL_get_psk_identity
1305 SSL_use_psk_identity_hint
1307 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1309 *) Add RFC 3161 compliant time stamp request creation, response generation
1310 and response verification functionality.
1311 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1313 *) Add initial support for TLS extensions, specifically for the server_name
1314 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1315 have new members for a host name. The SSL data structure has an
1316 additional member SSL_CTX *initial_ctx so that new sessions can be
1317 stored in that context to allow for session resumption, even after the
1318 SSL has been switched to a new SSL_CTX in reaction to a client's
1319 server_name extension.
1321 New functions (subject to change):
1323 SSL_get_servername()
1324 SSL_get_servername_type()
1327 New CTRL codes and macros (subject to change):
1329 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1330 - SSL_CTX_set_tlsext_servername_callback()
1331 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1332 - SSL_CTX_set_tlsext_servername_arg()
1333 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1335 openssl s_client has a new '-servername ...' option.
1337 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1338 '-key2 ...', '-servername_fatal' (subject to change). This allows
1339 testing the HostName extension for a specific single host name ('-cert'
1340 and '-key' remain fallbacks for handshakes without HostName
1341 negotiation). If the unrecogninzed_name alert has to be sent, this by
1342 default is a warning; it becomes fatal with the '-servername_fatal'
1345 [Peter Sylvester, Remy Allais, Christophe Renou]
1347 *) Whirlpool hash implementation is added.
1350 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1351 bn(64,32). Because of instruction set limitations it doesn't have
1352 any negative impact on performance. This was done mostly in order
1353 to make it possible to share assembler modules, such as bn_mul_mont
1354 implementations, between 32- and 64-bit builds without hassle.
1357 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1358 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1362 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1363 dedicated Montgomery multiplication procedure, is introduced.
1364 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1365 "64-bit" performance on certain 32-bit targets.
1368 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1369 in SSL structures. New SSL ctrl to set maximum send fragment size.
1370 Save memory by seeting the I/O buffer sizes dynamically instead of
1371 using the maximum available value.
1374 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1375 in addition to the text details.
1378 *) Very, very preliminary EXPERIMENTAL support for printing of general
1379 ASN1 structures. This currently produces rather ugly output and doesn't
1380 handle several customised structures at all.
1383 *) Integrated support for PVK file format and some related formats such
1384 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1385 these in the 'rsa' and 'dsa' utilities.
1388 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1391 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1392 place for the (very old) "NETSCAPE" format certificates which are now
1393 handled using new ASN1 code equivalents.
1396 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1397 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1398 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1401 *) Modify CRL distribution points extension code to print out previously
1402 unsupported fields. Enhance extension setting code to allow setting of
1406 *) Add print and set support for Issuing Distribution Point CRL extension.
1409 *) Change 'Configure' script to enable Camellia by default.
1412 Changes between 0.9.8r and 0.9.8s [xx XXX xxxx]
1414 *) Fix the BIO_f_buffer() implementation (which was mixing different
1415 interpretations of the '..._len' fields).
1416 [Adam Langley (Google)]
1418 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1419 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1420 threads won't reuse the same blinding coefficients.
1422 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1423 lock to call BN_BLINDING_invert_ex, and avoids one use of
1424 BN_BLINDING_update for each BN_BLINDING structure (previously,
1425 the last update always remained unused).
1426 [Emilia Käsper (Google)]
1428 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1429 for multi-threaded use of ECDH.
1430 [Adam Langley (Google)]
1432 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1435 *) Add protection against ECDSA timing attacks as mentioned in the paper
1436 by Billy Bob Brumley and Nicola Tuveri, see:
1438 http://eprint.iacr.org/2011/232.pdf
1440 [Billy Bob Brumley and Nicola Tuveri]
1442 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1444 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1445 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1447 *) Fix bug in string printing code: if *any* escaping is enabled we must
1448 escape the escape character (backslash) or the resulting string is
1452 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1454 *) Disable code workaround for ancient and obsolete Netscape browsers
1455 and servers: an attacker can use it in a ciphersuite downgrade attack.
1456 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1459 *) Fixed J-PAKE implementation error, originally discovered by
1460 Sebastien Martini, further info and confirmation from Stefan
1461 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1464 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1466 *) Fix extension code to avoid race conditions which can result in a buffer
1467 overrun vulnerability: resumed sessions must not be modified as they can
1468 be shared by multiple threads. CVE-2010-3864
1471 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1474 *) Don't reencode certificate when calculating signature: cache and use
1475 the original encoding instead. This makes signature verification of
1476 some broken encodings work correctly.
1479 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1480 is also one of the inputs.
1481 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1483 *) Don't repeatedly append PBE algorithms to table if they already exist.
1484 Sort table on each new add. This effectively makes the table read only
1485 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1489 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1491 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1494 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1495 access or freeing data twice (CVE-2010-0742)
1496 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1498 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1499 common in certificates and some applications which only call
1500 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1504 Reduce copying into .apps and .test in makevms.com
1505 Don't try to use blank CA certificate in CA.com
1506 Allow use of C files from original directories in maketests.com
1507 [Steven M. Schweda" <sms@antinode.info>]
1509 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1511 *) When rejecting SSL/TLS records due to an incorrect version number, never
1512 update s->server with a new major version number. As of
1513 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1514 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1515 the previous behavior could result in a read attempt at NULL when
1516 receiving specific incorrect SSL/TLS records once record payload
1517 protection is active. (CVE-2010-0740)
1518 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1520 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1521 could be crashed if the relevant tables were not present (e.g. chrooted).
1522 [Tomas Hoger <thoger@redhat.com>]
1524 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1526 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1527 [Martin Olsson, Neel Mehta]
1529 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1530 accommodate for stack sorting, always a write lock!).
1533 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1534 excessive delays in the RAND_poll(): over a minute. As a workaround
1535 include a time check in the inner Heap32Next loop too.
1538 *) The code that handled flushing of data in SSL/TLS originally used the
1539 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1540 the problem outlined in PR#1949. The fix suggested there however can
1541 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1542 of Apache). So instead simplify the code to flush unconditionally.
1543 This should be fine since flushing with no data to flush is a no op.
1546 *) Handle TLS versions 2.0 and later properly and correctly use the
1547 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1548 off ancient servers have a habit of sticking around for a while...
1551 *) Modify compression code so it frees up structures without using the
1552 ex_data callbacks. This works around a problem where some applications
1553 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1554 restarting) then use compression (e.g. SSL with compression) later.
1555 This results in significant per-connection memory leaks and
1556 has caused some security issues including CVE-2008-1678 and
1560 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1561 change when encrypting or decrypting.
1564 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1565 connect and renegotiate with servers which do not support RI.
1566 Until RI is more widely deployed this option is enabled by default.
1569 *) Add "missing" ssl ctrls to clear options and mode.
1572 *) If client attempts to renegotiate and doesn't support RI respond with
1573 a no_renegotiation alert as required by RFC5746. Some renegotiating
1574 TLS clients will continue a connection gracefully when they receive
1575 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1576 waiting for a server hello which it will never receive. Now we treat a
1577 received no_renegotiation alert as a fatal error. This is because
1578 applications requesting a renegotiation might well expect it to succeed
1579 and would have no code in place to handle the server denying it so the
1580 only safe thing to do is to terminate the connection.
1583 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1584 peer supports secure renegotiation and 0 otherwise. Print out peer
1585 renegotiation support in s_client/s_server.
1588 *) Replace the highly broken and deprecated SPKAC certification method with
1589 the updated NID creation version. This should correctly handle UTF8.
1592 *) Implement RFC5746. Re-enable renegotiation but require the extension
1593 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1594 turns out to be a bad idea. It has been replaced by
1595 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1596 SSL_CTX_set_options(). This is really not recommended unless you
1597 know what you are doing.
1598 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1600 *) Fixes to stateless session resumption handling. Use initial_ctx when
1601 issuing and attempting to decrypt tickets in case it has changed during
1602 servername handling. Use a non-zero length session ID when attempting
1603 stateless session resumption: this makes it possible to determine if
1604 a resumption has occurred immediately after receiving server hello
1605 (several places in OpenSSL subtly assume this) instead of later in
1609 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1610 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1611 fixes for a few places where the return code is not checked
1613 [Julia Lawall <julia@diku.dk>]
1615 *) Add --strict-warnings option to Configure script to include devteam
1616 warnings in other configurations.
1619 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1620 makes it possible to install openssl libraries in locations which
1621 have names other than "lib", for example "/usr/lib64" which some
1623 [Steve Henson, based on patch from Jeremy Utley]
1625 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1626 X690 8.9.12 and can produce some misleading textual output of OIDs.
1627 [Steve Henson, reported by Dan Kaminsky]
1629 *) Delete MD2 from algorithm tables. This follows the recommendation in
1630 several standards that it is not used in new applications due to
1631 several cryptographic weaknesses. For binary compatibility reasons
1632 the MD2 API is still compiled in by default.
1635 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1639 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1640 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1642 [Guenter <lists@gknw.net>]
1644 *) Fix the server certificate chain building code to use X509_verify_cert(),
1645 it used to have an ad-hoc builder which was unable to cope with anything
1646 other than a simple chain.
1647 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1649 *) Don't check self signed certificate signatures in X509_verify_cert()
1650 by default (a flag can override this): it just wastes time without
1651 adding any security. As a useful side effect self signed root CAs
1652 with non-FIPS digests are now usable in FIPS mode.
1655 *) In dtls1_process_out_of_seq_message() the check if the current message
1656 is already buffered was missing. For every new message was memory
1657 allocated, allowing an attacker to perform an denial of service attack
1658 with sending out of seq handshake messages until there is no memory
1659 left. Additionally every future messege was buffered, even if the
1660 sequence number made no sense and would be part of another handshake.
1661 So only messages with sequence numbers less than 10 in advance will be
1662 buffered. (CVE-2009-1378)
1663 [Robin Seggelmann, discovered by Daniel Mentz]
1665 *) Records are buffered if they arrive with a future epoch to be
1666 processed after finishing the corresponding handshake. There is
1667 currently no limitation to this buffer allowing an attacker to perform
1668 a DOS attack with sending records with future epochs until there is no
1669 memory left. This patch adds the pqueue_size() function to detemine
1670 the size of a buffer and limits the record buffer to 100 entries.
1672 [Robin Seggelmann, discovered by Daniel Mentz]
1674 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1675 parent structure is freed. (CVE-2009-1379)
1678 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1679 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1682 [Ilya O. <vrghost@gmail.com>]
1684 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1686 *) Disable renegotiation completely - this fixes a severe security
1687 problem (CVE-2009-3555) at the cost of breaking all
1688 renegotiation. Renegotiation can be re-enabled by setting
1689 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1690 run-time. This is really not recommended unless you know what
1694 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1696 *) Don't set val to NULL when freeing up structures, it is freed up by
1697 underlying code. If sizeof(void *) > sizeof(long) this can result in
1698 zeroing past the valid field. (CVE-2009-0789)
1699 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1701 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1702 checked correctly. This would allow some invalid signed attributes to
1703 appear to verify correctly. (CVE-2009-0591)
1704 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1706 *) Reject UniversalString and BMPString types with invalid lengths. This
1707 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1708 a legal length. (CVE-2009-0590)
1711 *) Set S/MIME signing as the default purpose rather than setting it
1712 unconditionally. This allows applications to override it at the store
1716 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1717 to handle some structures.
1720 *) Improve efficiency of mem_gets: don't search whole buffer each time
1722 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1724 *) New -hex option for openssl rand.
1727 *) Print out UTF8String and NumericString when parsing ASN1.
1730 *) Support NumericString type for name components.
1733 *) Allow CC in the environment to override the automatically chosen
1734 compiler. Note that nothing is done to ensure flags work with the
1738 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1740 *) Properly check EVP_VerifyFinal() and similar return values
1742 [Ben Laurie, Bodo Moeller, Google Security Team]
1744 *) Enable TLS extensions by default.
1747 *) Allow the CHIL engine to be loaded, whether the application is
1748 multithreaded or not. (This does not release the developer from the
1749 obligation to set up the dynamic locking callbacks.)
1750 [Sander Temme <sander@temme.net>]
1752 *) Use correct exit code if there is an error in dgst command.
1753 [Steve Henson; problem pointed out by Roland Dirlewanger]
1755 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1756 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1759 *) Add experimental JPAKE support, including demo authentication in
1760 s_client and s_server.
1763 *) Set the comparison function in v3_addr_canonize().
1764 [Rob Austein <sra@hactrn.net>]
1766 *) Add support for XMPP STARTTLS in s_client.
1767 [Philip Paeps <philip@freebsd.org>]
1769 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1770 to ensure that even with this option, only ciphersuites in the
1771 server's preference list will be accepted. (Note that the option
1772 applies only when resuming a session, so the earlier behavior was
1773 just about the algorithm choice for symmetric cryptography.)
1776 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1778 *) Fix NULL pointer dereference if a DTLS server received
1779 ChangeCipherSpec as first record (CVE-2009-1386).
1782 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1783 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1786 *) The fix in 0.9.8c that supposedly got rid of unsafe
1787 double-checked locking was incomplete for RSA blinding,
1788 addressing just one layer of what turns out to have been
1789 doubly unsafe triple-checked locking.
1791 So now fix this for real by retiring the MONT_HELPER macro
1792 in crypto/rsa/rsa_eay.c.
1794 [Bodo Moeller; problem pointed out by Marius Schilder]
1796 *) Various precautionary measures:
1798 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1800 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1801 (NB: This would require knowledge of the secret session ticket key
1802 to exploit, in which case you'd be SOL either way.)
1804 - Change bn_nist.c so that it will properly handle input BIGNUMs
1805 outside the expected range.
1807 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1810 [Neel Mehta, Bodo Moeller]
1812 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1813 the load fails. Useful for distros.
1814 [Ben Laurie and the FreeBSD team]
1816 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1819 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1822 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1824 This work was sponsored by Logica.
1827 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1828 keystores. Support for SSL/TLS client authentication too.
1829 Not compiled unless enable-capieng specified to Configure.
1831 This work was sponsored by Logica.
1834 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1835 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1836 attribute creation routines such as certifcate requests and PKCS#12
1840 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1842 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1843 handshake which could lead to a cilent crash as found using the
1844 Codenomicon TLS test suite (CVE-2008-1672)
1845 [Steve Henson, Mark Cox]
1847 *) Fix double free in TLS server name extensions which could lead to
1848 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1851 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1853 Clear the error queue to ensure that error entries left from
1854 older function calls do not interfere with the correct operation.
1855 [Lutz Jaenicke, Erik de Castro Lopo]
1857 *) Remove root CA certificates of commercial CAs:
1859 The OpenSSL project does not recommend any specific CA and does not
1860 have any policy with respect to including or excluding any CA.
1861 Therefore it does not make any sense to ship an arbitrary selection
1862 of root CA certificates with the OpenSSL software.
1865 *) RSA OAEP patches to fix two separate invalid memory reads.
1866 The first one involves inputs when 'lzero' is greater than
1867 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1868 before the beginning of from). The second one involves inputs where
1869 the 'db' section contains nothing but zeroes (there is a one-byte
1870 invalid read after the end of 'db').
1871 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1873 *) Partial backport from 0.9.9-dev:
1875 Introduce bn_mul_mont (dedicated Montgomery multiplication
1876 procedure) as a candidate for BIGNUM assembler implementation.
1877 While 0.9.9-dev uses assembler for various architectures, only
1878 x86_64 is available by default here in the 0.9.8 branch, and
1879 32-bit x86 is available through a compile-time setting.
1881 To try the 32-bit x86 assembler implementation, use Configure
1882 option "enable-montasm" (which exists only for this backport).
1884 As "enable-montasm" for 32-bit x86 disclaims code stability
1885 anyway, in this constellation we activate additional code
1886 backported from 0.9.9-dev for further performance improvements,
1887 namely BN_from_montgomery_word. (To enable this otherwise,
1888 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1890 [Andy Polyakov (backport partially by Bodo Moeller)]
1892 *) Add TLS session ticket callback. This allows an application to set
1893 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1894 values. This is useful for key rollover for example where several key
1895 sets may exist with different names.
1898 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1899 This was broken until now in 0.9.8 releases, such that the only way
1900 a registered ENGINE could be used (assuming it initialises
1901 successfully on the host) was to explicitly set it as the default
1902 for the relevant algorithms. This is in contradiction with 0.9.7
1903 behaviour and the documentation. With this fix, when an ENGINE is
1904 registered into a given algorithm's table of implementations, the
1905 'uptodate' flag is reset so that auto-discovery will be used next
1906 time a new context for that algorithm attempts to select an
1908 [Ian Lister (tweaked by Geoff Thorpe)]
1910 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1911 implemention in the following ways:
1913 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1916 Lack of BER streaming support means one pass streaming processing is
1917 only supported if data is detached: setting the streaming flag is
1918 ignored for embedded content.
1920 CMS support is disabled by default and must be explicitly enabled
1921 with the enable-cms configuration option.
1924 *) Update the GMP engine glue to do direct copies between BIGNUM and
1925 mpz_t when openssl and GMP use the same limb size. Otherwise the
1926 existing "conversion via a text string export" trick is still used.
1927 [Paul Sheer <paulsheer@gmail.com>]
1929 *) Zlib compression BIO. This is a filter BIO which compressed and
1930 uncompresses any data passed through it.
1933 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1934 RFC3394 compatible AES key wrapping.
1937 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1938 sets string data without copying. X509_ALGOR_set0() and
1939 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1940 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1941 from an X509_ATTRIBUTE structure optionally checking it occurs only
1942 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1946 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1947 to get the expected BN_FLG_CONSTTIME behavior.
1948 [Bodo Moeller (Google)]
1952 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1953 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1954 - added some more tests to do_tests.pl
1955 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1956 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1957 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1958 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1959 - various changes to netware.pl to enable gcc-cross builds on Win32
1961 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1962 - various changes to fix missing prototype warnings
1963 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1964 - added AES, WHIRLPOOL and CPUID assembler code to build files
1965 - added missing AES assembler make rules to mk1mf.pl
1966 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1967 [Guenter Knauf <eflash@gmx.net>]
1969 *) Implement certificate status request TLS extension defined in RFC3546.
1970 A client can set the appropriate parameters and receive the encoded
1971 OCSP response via a callback. A server can query the supplied parameters
1972 and set the encoded OCSP response in the callback. Add simplified examples
1973 to s_client and s_server.
1976 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1978 *) Fix various bugs:
1979 + Binary incompatibility of ssl_ctx_st structure
1980 + DTLS interoperation with non-compliant servers
1981 + Don't call get_session_cb() without proposed session
1982 + Fix ia64 assembler code
1983 [Andy Polyakov, Steve Henson]
1985 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1987 *) DTLS Handshake overhaul. There were longstanding issues with
1988 OpenSSL DTLS implementation, which were making it impossible for
1989 RFC 4347 compliant client to communicate with OpenSSL server.
1990 Unfortunately just fixing these incompatibilities would "cut off"
1991 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
1992 server keeps tolerating non RFC compliant syntax. The opposite is
1993 not true, 0.9.8f client can not communicate with earlier server.
1994 This update even addresses CVE-2007-4995.
1997 *) Changes to avoid need for function casts in OpenSSL: some compilers
1998 (gcc 4.2 and later) reject their use.
1999 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
2002 *) Add RFC4507 support to OpenSSL. This includes the corrections in
2003 RFC4507bis. The encrypted ticket format is an encrypted encoded
2004 SSL_SESSION structure, that way new session features are automatically
2007 If a client application caches session in an SSL_SESSION structure
2008 support is transparent because tickets are now stored in the encoded
2011 The SSL_CTX structure automatically generates keys for ticket
2012 protection in servers so again support should be possible
2013 with no application modification.
2015 If a client or server wishes to disable RFC4507 support then the option
2016 SSL_OP_NO_TICKET can be set.
2018 Add a TLS extension debugging callback to allow the contents of any client
2019 or server extensions to be examined.
2021 This work was sponsored by Google.
2024 *) Add initial support for TLS extensions, specifically for the server_name
2025 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
2026 have new members for a host name. The SSL data structure has an
2027 additional member SSL_CTX *initial_ctx so that new sessions can be
2028 stored in that context to allow for session resumption, even after the
2029 SSL has been switched to a new SSL_CTX in reaction to a client's
2030 server_name extension.
2032 New functions (subject to change):
2034 SSL_get_servername()
2035 SSL_get_servername_type()
2038 New CTRL codes and macros (subject to change):
2040 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2041 - SSL_CTX_set_tlsext_servername_callback()
2042 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
2043 - SSL_CTX_set_tlsext_servername_arg()
2044 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
2046 openssl s_client has a new '-servername ...' option.
2048 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2049 '-key2 ...', '-servername_fatal' (subject to change). This allows
2050 testing the HostName extension for a specific single host name ('-cert'
2051 and '-key' remain fallbacks for handshakes without HostName
2052 negotiation). If the unrecogninzed_name alert has to be sent, this by
2053 default is a warning; it becomes fatal with the '-servername_fatal'
2056 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
2058 *) Add AES and SSE2 assembly language support to VC++ build.
2061 *) Mitigate attack on final subtraction in Montgomery reduction.
2064 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
2065 (which previously caused an internal error).
2068 *) Squeeze another 10% out of IGE mode when in != out.
2071 *) AES IGE mode speedup.
2072 [Dean Gaudet (Google)]
2074 *) Add the Korean symmetric 128-bit cipher SEED (see
2075 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
2076 add SEED ciphersuites from RFC 4162:
2078 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
2079 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
2080 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
2081 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
2083 To minimize changes between patchlevels in the OpenSSL 0.9.8
2084 series, SEED remains excluded from compilation unless OpenSSL
2085 is configured with 'enable-seed'.
2086 [KISA, Bodo Moeller]
2088 *) Mitigate branch prediction attacks, which can be practical if a
2089 single processor is shared, allowing a spy process to extract
2090 information. For detailed background information, see
2091 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
2092 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
2093 and Necessary Software Countermeasures"). The core of the change
2094 are new versions BN_div_no_branch() and
2095 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
2096 respectively, which are slower, but avoid the security-relevant
2097 conditional branches. These are automatically called by BN_div()
2098 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
2099 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
2100 remove a conditional branch.
2102 BN_FLG_CONSTTIME is the new name for the previous
2103 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
2104 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
2105 in the exponent causes BN_mod_exp_mont() to use the alternative
2106 implementation in BN_mod_exp_mont_consttime().) The old name
2107 remains as a deprecated alias.
2109 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
2110 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
2111 constant-time implementations for more than just exponentiation.
2112 Here too the old name is kept as a deprecated alias.
2114 BN_BLINDING_new() will now use BN_dup() for the modulus so that
2115 the BN_BLINDING structure gets an independent copy of the
2116 modulus. This means that the previous "BIGNUM *m" argument to
2117 BN_BLINDING_new() and to BN_BLINDING_create_param() now
2118 essentially becomes "const BIGNUM *m", although we can't actually
2119 change this in the header file before 0.9.9. It allows
2120 RSA_setup_blinding() to use BN_with_flags() on the modulus to
2121 enable BN_FLG_CONSTTIME.
2123 [Matthew D Wood (Intel Corp)]
2125 *) In the SSL/TLS server implementation, be strict about session ID
2126 context matching (which matters if an application uses a single
2127 external cache for different purposes). Previously,
2128 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2129 set. This did ensure strict client verification, but meant that,
2130 with applications using a single external cache for quite
2131 different requirements, clients could circumvent ciphersuite
2132 restrictions for a given session ID context by starting a session
2133 in a different context.
2136 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2137 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2138 authentication-only ciphersuites.
2141 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
2142 not complete and could lead to a possible single byte overflow
2143 (CVE-2007-5135) [Ben Laurie]
2145 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
2147 *) Since AES128 and AES256 (and similarly Camellia128 and
2148 Camellia256) share a single mask bit in the logic of
2149 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2150 kludge to work properly if AES128 is available and AES256 isn't
2151 (or if Camellia128 is available and Camellia256 isn't).
2154 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
2155 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
2156 When a point or a seed is encoded in a BIT STRING, we need to
2157 prevent the removal of trailing zero bits to get the proper DER
2158 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
2159 of a NamedBitList, for which trailing 0 bits need to be removed.)
2162 *) Have SSL/TLS server implementation tolerate "mismatched" record
2163 protocol version while receiving ClientHello even if the
2164 ClientHello is fragmented. (The server can't insist on the
2165 particular protocol version it has chosen before the ServerHello
2166 message has informed the client about his choice.)
2169 *) Add RFC 3779 support.
2170 [Rob Austein for ARIN, Ben Laurie]
2172 *) Load error codes if they are not already present instead of using a
2173 static variable. This allows them to be cleanly unloaded and reloaded.
2174 Improve header file function name parsing.
2177 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
2178 or CAPABILITY handshake as required by RFCs.
2181 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
2183 *) Introduce limits to prevent malicious keys being able to
2184 cause a denial of service. (CVE-2006-2940)
2185 [Steve Henson, Bodo Moeller]
2187 *) Fix ASN.1 parsing of certain invalid structures that can result
2188 in a denial of service. (CVE-2006-2937) [Steve Henson]
2190 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2191 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2193 *) Fix SSL client code which could crash if connecting to a
2194 malicious SSLv2 server. (CVE-2006-4343)
2195 [Tavis Ormandy and Will Drewry, Google Security Team]
2197 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
2198 match only those. Before that, "AES256-SHA" would be interpreted
2199 as a pattern and match "AES128-SHA" too (since AES128-SHA got
2200 the same strength classification in 0.9.7h) as we currently only
2201 have a single AES bit in the ciphersuite description bitmap.
2202 That change, however, also applied to ciphersuite strings such as
2203 "RC4-MD5" that intentionally matched multiple ciphersuites --
2204 namely, SSL 2.0 ciphersuites in addition to the more common ones
2205 from SSL 3.0/TLS 1.0.
2207 So we change the selection algorithm again: Naming an explicit
2208 ciphersuite selects this one ciphersuite, and any other similar
2209 ciphersuite (same bitmap) from *other* protocol versions.
2210 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2211 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
2213 Since SSL 2.0 does not have any ciphersuites for which the
2214 128/256 bit distinction would be relevant, this works for now.
2215 The proper fix will be to use different bits for AES128 and
2216 AES256, which would have avoided the problems from the beginning;
2217 however, bits are scarce, so we can only do this in a new release
2218 (not just a patchlevel) when we can change the SSL_CIPHER
2219 definition to split the single 'unsigned long mask' bitmap into
2220 multiple values to extend the available space.
2224 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2226 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2227 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2229 *) Add AES IGE and biIGE modes.
2232 *) Change the Unix randomness entropy gathering to use poll() when
2233 possible instead of select(), since the latter has some
2234 undesirable limitations.
2235 [Darryl Miles via Richard Levitte and Bodo Moeller]
2237 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2238 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2239 cannot be implicitly activated as part of, e.g., the "AES" alias.
2240 However, please upgrade to OpenSSL 0.9.9[-dev] for
2241 non-experimental use of the ECC ciphersuites to get TLS extension
2242 support, which is required for curve and point format negotiation
2243 to avoid potential handshake problems.
2246 *) Disable rogue ciphersuites:
2248 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2249 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2250 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2252 The latter two were purportedly from
2253 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2256 Also deactivate the remaining ciphersuites from
2257 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2258 unofficial, and the ID has long expired.
2261 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2262 dual-core machines) and other potential thread-safety issues.
2265 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2266 versions), which is now available for royalty-free use
2267 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2268 Also, add Camellia TLS ciphersuites from RFC 4132.
2270 To minimize changes between patchlevels in the OpenSSL 0.9.8
2271 series, Camellia remains excluded from compilation unless OpenSSL
2272 is configured with 'enable-camellia'.
2275 *) Disable the padding bug check when compression is in use. The padding
2276 bug check assumes the first packet is of even length, this is not
2277 necessarily true if compresssion is enabled and can result in false
2278 positives causing handshake failure. The actual bug test is ancient
2279 code so it is hoped that implementations will either have fixed it by
2280 now or any which still have the bug do not support compression.
2283 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2285 *) When applying a cipher rule check to see if string match is an explicit
2286 cipher suite and only match that one cipher suite if it is.
2289 *) Link in manifests for VC++ if needed.
2290 [Austin Ziegler <halostatue@gmail.com>]
2292 *) Update support for ECC-based TLS ciphersuites according to
2293 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2294 TLS extensions, which are supported starting with the 0.9.9
2295 branch, not in the OpenSSL 0.9.8 branch).
2298 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2299 opaque EVP_CIPHER_CTX handling.
2302 *) Fixes and enhancements to zlib compression code. We now only use
2303 "zlib1.dll" and use the default __cdecl calling convention on Win32
2304 to conform with the standards mentioned here:
2305 http://www.zlib.net/DLL_FAQ.txt
2306 Static zlib linking now works on Windows and the new --with-zlib-include
2307 --with-zlib-lib options to Configure can be used to supply the location
2308 of the headers and library. Gracefully handle case where zlib library
2312 *) Several fixes and enhancements to the OID generation code. The old code
2313 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2314 handle numbers larger than ULONG_MAX, truncated printing and had a
2315 non standard OBJ_obj2txt() behaviour.
2318 *) Add support for building of engines under engine/ as shared libraries
2319 under VC++ build system.
2322 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2323 Hopefully, we will not see any false combination of paths any more.
2326 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2328 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2329 (part of SSL_OP_ALL). This option used to disable the
2330 countermeasure against man-in-the-middle protocol-version
2331 rollback in the SSL 2.0 server implementation, which is a bad
2332 idea. (CVE-2005-2969)
2334 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2335 for Information Security, National Institute of Advanced Industrial
2336 Science and Technology [AIST], Japan)]
2338 *) Add two function to clear and return the verify parameter flags.
2341 *) Keep cipherlists sorted in the source instead of sorting them at
2342 runtime, thus removing the need for a lock.
2345 *) Avoid some small subgroup attacks in Diffie-Hellman.
2346 [Nick Mathewson and Ben Laurie]
2348 *) Add functions for well-known primes.
2351 *) Extended Windows CE support.
2352 [Satoshi Nakamura and Andy Polyakov]
2354 *) Initialize SSL_METHOD structures at compile time instead of during
2355 runtime, thus removing the need for a lock.
2358 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2359 attempting to decrypt each encrypted key in turn. Add support to
2363 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2365 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2368 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2371 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2372 key into the same file any more.
2375 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2378 *) Add -utf8 command line and config file option to 'ca'.
2379 [Stefan <stf@udoma.org]
2381 *) Removed the macro des_crypt(), as it seems to conflict with some
2382 libraries. Use DES_crypt().
2385 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2386 involves renaming the source and generated shared-libs for
2387 both. The engines will accept the corrected or legacy ids
2388 ('ncipher' and '4758_cca' respectively) when binding. NB,
2389 this only applies when building 'shared'.
2390 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2392 *) Add attribute functions to EVP_PKEY structure. Modify
2393 PKCS12_create() to recognize a CSP name attribute and
2394 use it. Make -CSP option work again in pkcs12 utility.
2397 *) Add new functionality to the bn blinding code:
2398 - automatic re-creation of the BN_BLINDING parameters after
2399 a fixed number of uses (currently 32)
2400 - add new function for parameter creation
2401 - introduce flags to control the update behaviour of the
2402 BN_BLINDING parameters
2403 - hide BN_BLINDING structure
2404 Add a second BN_BLINDING slot to the RSA structure to improve
2405 performance when a single RSA object is shared among several
2409 *) Add support for DTLS.
2410 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2412 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2413 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2416 *) Remove buggy and incompletet DH cert support from
2417 ssl/ssl_rsa.c and ssl/s3_both.c
2420 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2421 the apps/openssl applications.
2424 *) Compile clean with "-Wall -Wmissing-prototypes
2425 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2426 DEBUG_SAFESTACK must also be set.
2429 *) Change ./Configure so that certain algorithms can be disabled by default.
2430 The new counterpiece to "no-xxx" is "enable-xxx".
2432 The patented RC5 and MDC2 algorithms will now be disabled unless
2433 "enable-rc5" and "enable-mdc2", respectively, are specified.
2435 (IDEA remains enabled despite being patented. This is because IDEA
2436 is frequently required for interoperability, and there is no license
2437 fee for non-commercial use. As before, "no-idea" can be used to
2438 avoid this algorithm.)
2442 *) Add processing of proxy certificates (see RFC 3820). This work was
2443 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2444 EGEE (Enabling Grids for E-science in Europe).
2447 *) RC4 performance overhaul on modern architectures/implementations, such
2448 as Intel P4, IA-64 and AMD64.
2451 *) New utility extract-section.pl. This can be used specify an alternative
2452 section number in a pod file instead of having to treat each file as
2453 a separate case in Makefile. This can be done by adding two lines to the
2456 =for comment openssl_section:XXX
2458 The blank line is mandatory.
2462 *) New arguments -certform, -keyform and -pass for s_client and s_server
2463 to allow alternative format key and certificate files and passphrase
2467 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2468 update associated structures and add various utility functions.
2470 Add new policy related verify parameters, include policy checking in
2471 standard verify code. Enhance 'smime' application with extra parameters
2472 to support policy checking and print out.
2475 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2476 Nehemiah processors. These extensions support AES encryption in hardware
2477 as well as RNG (though RNG support is currently disabled).
2478 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2480 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2483 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2484 [Andy Polyakov and a number of other people]
2486 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2487 implementation contributed by IBM.
2488 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2490 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2491 exponent rather than 'unsigned long'. There is a corresponding change to
2492 the new 'rsa_keygen' element of the RSA_METHOD structure.
2493 [Jelte Jansen, Geoff Thorpe]
2495 *) Functionality for creating the initial serial number file is now
2496 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2498 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2499 number file to 1, which is bound to cause problems. To avoid
2500 the problems while respecting compatibility between different 0.9.7
2501 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2502 CA.pl for serial number initialization. With the new release 0.9.8,
2503 we can fix the problem directly in the 'ca' utility.)
2506 *) Reduced header interdepencies by declaring more opaque objects in
2507 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2508 give fewer recursive includes, which could break lazy source code - so
2509 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2510 developers should define this symbol when building and using openssl to
2511 ensure they track the recommended behaviour, interfaces, [etc], but
2512 backwards-compatible behaviour prevails when this isn't defined.
2515 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2518 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2519 This will generate a random key of the appropriate length based on the
2520 cipher context. The EVP_CIPHER can provide its own random key generation
2521 routine to support keys of a specific form. This is used in the des and
2522 3des routines to generate a key of the correct parity. Update S/MIME
2523 code to use new functions and hence generate correct parity DES keys.
2524 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2525 valid (weak or incorrect parity).
2528 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2529 as looking them up. This is useful when the verified structure may contain
2530 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2531 present unless the new PKCS7_NO_CRL flag is asserted.
2534 *) Extend ASN1 oid configuration module. It now additionally accepts the
2537 shortName = some long name, 1.2.3.4
2540 *) Reimplemented the BN_CTX implementation. There is now no more static
2541 limitation on the number of variables it can handle nor the depth of the
2542 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2543 information can now expand as required, and rather than having a single
2544 static array of bignums, BN_CTX now uses a linked-list of such arrays
2545 allowing it to expand on demand whilst maintaining the usefulness of
2546 BN_CTX's "bundling".
2549 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2550 to allow all RSA operations to function using a single BN_CTX.
2553 *) Preliminary support for certificate policy evaluation and checking. This
2554 is initially intended to pass the tests outlined in "Conformance Testing
2555 of Relying Party Client Certificate Path Processing Logic" v1.07.
2558 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2559 remained unused and not that useful. A variety of other little bignum
2560 tweaks and fixes have also been made continuing on from the audit (see
2564 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2565 associated ASN1, EVP and SSL functions and old ASN1 macros.
2568 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2569 and this should never fail. So the return value from the use of
2570 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2571 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2574 *) BN_CTX_get() should return zero-valued bignums, providing the same
2575 initialised value as BN_new().
2576 [Geoff Thorpe, suggested by Ulf Möller]
2578 *) Support for inhibitAnyPolicy certificate extension.
2581 *) An audit of the BIGNUM code is underway, for which debugging code is
2582 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2583 is considered valid when processing BIGNUMs, and causes execution to
2584 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2585 further steps are taken to deliberately pollute unused data in BIGNUM
2586 structures to try and expose faulty code further on. For now, openssl will
2587 (in its default mode of operation) continue to tolerate the inconsistent
2588 forms that it has tolerated in the past, but authors and packagers should
2589 consider trying openssl and their own applications when compiled with
2590 these debugging symbols defined. It will help highlight potential bugs in
2591 their own code, and will improve the test coverage for OpenSSL itself. At
2592 some point, these tighter rules will become openssl's default to improve
2593 maintainability, though the assert()s and other overheads will remain only
2594 in debugging configurations. See bn.h for more details.
2595 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2597 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2598 that can only be obtained through BN_CTX_new() (which implicitly
2599 initialises it). The presence of this function only made it possible
2600 to overwrite an existing structure (and cause memory leaks).
2603 *) Because of the callback-based approach for implementing LHASH as a
2604 template type, lh_insert() adds opaque objects to hash-tables and
2605 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2606 to clean up those corresponding objects before destroying the hash table
2607 (and losing the object pointers). So some over-zealous constifications in
2608 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2609 objects as "const" and the lh_doall[_arg] callback wrappers are not
2610 prototyped to have "const" restrictions on the object pointers they are
2611 given (and so aren't required to cast them away any more).
2614 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2615 (speed) prefers to use its own implementation. The two implementations
2616 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2617 its object type properly exposed (MS_TM) instead of casting to/from "char
2618 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2619 aren't necessarily the greatest nomenclatures - but this is what was used
2620 internally to the implementation so I've used that for now.
2623 *) Ensure that deprecated functions do not get compiled when
2624 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2625 the self-tests were still using deprecated key-generation functions so
2626 these have been updated also.
2629 *) Reorganise PKCS#7 code to separate the digest location functionality
2630 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2631 New function PKCS7_set_digest() to set the digest type for PKCS#7
2632 digestedData type. Add additional code to correctly generate the
2633 digestedData type and add support for this type in PKCS7 initialization
2637 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2638 structure of type "other".
2641 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2642 sure the loop does correctly stop and breaking ("division by zero")
2643 modulus operations are not performed. The (pre-generated) prime
2644 table crypto/bn/bn_prime.h was already correct, but it could not be
2645 re-generated on some platforms because of the "division by zero"
2646 situation in the script.
2647 [Ralf S. Engelschall]
2649 *) Update support for ECC-based TLS ciphersuites according to
2650 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2651 SHA-1 now is only used for "small" curves (where the
2652 representation of a field element takes up to 24 bytes); for
2653 larger curves, the field element resulting from ECDH is directly
2654 used as premaster secret.
2655 [Douglas Stebila (Sun Microsystems Laboratories)]
2657 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2658 curve secp160r1 to the tests.
2659 [Douglas Stebila (Sun Microsystems Laboratories)]
2661 *) Add the possibility to load symbols globally with DSO.
2662 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2664 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2665 control of the error stack.
2668 *) Add support for STORE in ENGINE.
2671 *) Add the STORE type. The intention is to provide a common interface
2672 to certificate and key stores, be they simple file-based stores, or
2673 HSM-type store, or LDAP stores, or...
2674 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2677 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2678 pass a list of arguments to any function as well as provide a way
2679 for a function to pass data back to the caller.
2682 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2683 works like BUF_strdup() but can be used to duplicate a portion of
2684 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2688 *) Add the function sk_find_ex() which works like sk_find(), but will
2689 return an index to an element even if an exact match couldn't be
2690 found. The index is guaranteed to point at the element where the
2691 searched-for key would be inserted to preserve sorting order.
2694 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2695 takes an extra flags argument for optional functionality. Currently,
2696 the following flags are defined:
2698 OBJ_BSEARCH_VALUE_ON_NOMATCH
2699 This one gets OBJ_bsearch_ex() to return a pointer to the first
2700 element where the comparing function returns a negative or zero
2703 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2704 This one gets OBJ_bsearch_ex() to return a pointer to the first
2705 element where the comparing function returns zero. This is useful
2706 if there are more than one element where the comparing function
2710 *) Make it possible to create self-signed certificates with 'openssl ca'
2711 in such a way that the self-signed certificate becomes part of the
2712 CA database and uses the same mechanisms for serial number generation
2713 as all other certificate signing. The new flag '-selfsign' enables
2714 this functionality. Adapt CA.sh and CA.pl.in.
2717 *) Add functionality to check the public key of a certificate request
2718 against a given private. This is useful to check that a certificate
2719 request can be signed by that key (self-signing).
2722 *) Make it possible to have multiple active certificates with the same
2723 subject in the CA index file. This is done only if the keyword
2724 'unique_subject' is set to 'no' in the main CA section (default
2725 if 'CA_default') of the configuration file. The value is saved
2726 with the database itself in a separate index attribute file,
2727 named like the index file with '.attr' appended to the name.
2730 *) Generate muti valued AVAs using '+' notation in config files for
2734 *) Support for nameConstraints certificate extension.
2737 *) Support for policyConstraints certificate extension.
2740 *) Support for policyMappings certificate extension.
2743 *) Make sure the default DSA_METHOD implementation only uses its
2744 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2745 and change its own handlers to be NULL so as to remove unnecessary
2746 indirection. This lets alternative implementations fallback to the
2747 default implementation more easily.
2750 *) Support for directoryName in GeneralName related extensions
2754 *) Make it possible to link applications using Makefile.shared.
2755 Make that possible even when linking against static libraries!
2758 *) Support for single pass processing for S/MIME signing. This now
2759 means that S/MIME signing can be done from a pipe, in addition
2760 cleartext signing (multipart/signed type) is effectively streaming
2761 and the signed data does not need to be all held in memory.
2763 This is done with a new flag PKCS7_STREAM. When this flag is set
2764 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2765 is done after the data is output (and digests calculated) in
2766 SMIME_write_PKCS7().
2769 *) Add full support for -rpath/-R, both in shared libraries and
2770 applications, at least on the platforms where it's known how
2774 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2775 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2776 will now compute a table of multiples of the generator that
2777 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2778 faster (notably in the case of a single point multiplication,
2779 scalar * generator).
2780 [Nils Larsch, Bodo Moeller]
2782 *) IPv6 support for certificate extensions. The various extensions
2783 which use the IP:a.b.c.d can now take IPv6 addresses using the
2784 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2788 *) Added an ENGINE that implements RSA by performing private key
2789 exponentiations with the GMP library. The conversions to and from
2790 GMP's mpz_t format aren't optimised nor are any montgomery forms
2791 cached, and on x86 it appears OpenSSL's own performance has caught up.
2792 However there are likely to be other architectures where GMP could
2793 provide a boost. This ENGINE is not built in by default, but it can be
2794 specified at Configure time and should be accompanied by the necessary
2795 linker additions, eg;
2796 ./config -DOPENSSL_USE_GMP -lgmp
2799 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2800 testing availability of engines with "-t" - the old behaviour is
2801 produced by increasing the feature's verbosity with "-tt".
2804 *) ECDSA routines: under certain error conditions uninitialized BN objects
2805 could be freed. Solution: make sure initialization is performed early
2806 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2810 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2811 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2812 software implementations. For DSA and DH, parameter generation can
2813 also be overriden by providing the appropriate method callbacks.
2816 *) Change the "progress" mechanism used in key-generation and
2817 primality testing to functions that take a new BN_GENCB pointer in
2818 place of callback/argument pairs. The new API functions have "_ex"
2819 postfixes and the older functions are reimplemented as wrappers for
2820 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2821 declarations of the old functions to help (graceful) attempts to
2822 migrate to the new functions. Also, the new key-generation API
2823 functions operate on a caller-supplied key-structure and return
2824 success/failure rather than returning a key or NULL - this is to
2825 help make "keygen" another member function of RSA_METHOD etc.
2827 Example for using the new callback interface:
2829 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2833 BN_GENCB_set(&my_cb, my_callback, my_arg);
2835 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2836 /* For the meaning of a, b in calls to my_callback(), see the
2837 * documentation of the function that calls the callback.
2838 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2839 * my_callback should return 1 if it wants BN_is_prime_ex()
2840 * to continue, or 0 to stop.
2845 *) Change the ZLIB compression method to be stateful, and make it
2846 available to TLS with the number defined in
2847 draft-ietf-tls-compression-04.txt.
2850 *) Add the ASN.1 structures and functions for CertificatePair, which
2851 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2853 CertificatePair ::= SEQUENCE {
2854 forward [0] Certificate OPTIONAL,
2855 reverse [1] Certificate OPTIONAL,
2856 -- at least one of the pair shall be present -- }
2858 Also implement the PEM functions to read and write certificate
2859 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2861 This needed to be defined, mostly for the sake of the LDAP
2862 attribute crossCertificatePair, but may prove useful elsewhere as
2866 *) Make it possible to inhibit symlinking of shared libraries in
2867 Makefile.shared, for Cygwin's sake.
2870 *) Extend the BIGNUM API by creating a function
2871 void BN_set_negative(BIGNUM *a, int neg);
2872 and a macro that behave like
2873 int BN_is_negative(const BIGNUM *a);
2875 to avoid the need to access 'a->neg' directly in applications.
2878 *) Implement fast modular reduction for pseudo-Mersenne primes
2879 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2880 EC_GROUP_new_curve_GFp() will now automatically use this
2882 [Nils Larsch <nla@trustcenter.de>]
2884 *) Add new lock type (CRYPTO_LOCK_BN).
2887 *) Change the ENGINE framework to automatically load engines
2888 dynamically from specific directories unless they could be
2889 found to already be built in or loaded. Move all the
2890 current engines except for the cryptodev one to a new
2892 The engines in engines/ are built as shared libraries if
2893 the "shared" options was given to ./Configure or ./config.
2894 Otherwise, they are inserted in libcrypto.a.
2895 /usr/local/ssl/engines is the default directory for dynamic
2896 engines, but that can be overriden at configure time through
2897 the usual use of --prefix and/or --openssldir, and at run
2898 time with the environment variable OPENSSL_ENGINES.
2899 [Geoff Thorpe and Richard Levitte]
2901 *) Add Makefile.shared, a helper makefile to build shared
2902 libraries. Addapt Makefile.org.
2905 *) Add version info to Win32 DLLs.
2906 [Peter 'Luna' Runestig" <peter@runestig.com>]
2908 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2909 can be added using this API to created arbitrary PKCS#12
2910 files while avoiding the low level API.
2912 New options to PKCS12_create(), key or cert can be NULL and
2913 will then be omitted from the output file. The encryption
2914 algorithm NIDs can be set to -1 for no encryption, the mac
2915 iteration count can be set to 0 to omit the mac.
2917 Enhance pkcs12 utility by making the -nokeys and -nocerts
2918 options work when creating a PKCS#12 file. New option -nomac
2919 to omit the mac, NONE can be set for an encryption algorithm.
2920 New code is modified to use the enhanced PKCS12_create()
2921 instead of the low level API.
2924 *) Extend ASN1 encoder to support indefinite length constructed
2925 encoding. This can output sequences tags and octet strings in
2926 this form. Modify pk7_asn1.c to support indefinite length
2927 encoding. This is experimental and needs additional code to
2928 be useful, such as an ASN1 bio and some enhanced streaming
2931 Extend template encode functionality so that tagging is passed
2932 down to the template encoder.
2935 *) Let 'openssl req' fail if an argument to '-newkey' is not
2936 recognized instead of using RSA as a default.
2939 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2940 As these are not official, they are not included in "ALL";
2941 the "ECCdraft" ciphersuite group alias can be used to select them.
2942 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2944 *) Add ECDH engine support.
2945 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2947 *) Add ECDH in new directory crypto/ecdh/.
2948 [Douglas Stebila (Sun Microsystems Laboratories)]
2950 *) Let BN_rand_range() abort with an error after 100 iterations
2951 without success (which indicates a broken PRNG).
2954 *) Change BN_mod_sqrt() so that it verifies that the input value
2955 is really the square of the return value. (Previously,
2956 BN_mod_sqrt would show GIGO behaviour.)
2959 *) Add named elliptic curves over binary fields from X9.62, SECG,
2960 and WAP/WTLS; add OIDs that were still missing.
2962 [Sheueling Chang Shantz and Douglas Stebila
2963 (Sun Microsystems Laboratories)]
2965 *) Extend the EC library for elliptic curves over binary fields
2966 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2969 EC_GF2m_simple_method
2973 EC_GROUP_new_curve_GF2m
2974 EC_GROUP_set_curve_GF2m
2975 EC_GROUP_get_curve_GF2m
2976 EC_POINT_set_affine_coordinates_GF2m
2977 EC_POINT_get_affine_coordinates_GF2m
2978 EC_POINT_set_compressed_coordinates_GF2m
2980 Point compression for binary fields is disabled by default for
2981 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2984 As binary polynomials are represented as BIGNUMs, various members
2985 of the EC_GROUP and EC_POINT data structures can be shared
2986 between the implementations for prime fields and binary fields;
2987 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
2988 are essentially identical to their ..._GFp counterparts.
2989 (For simplicity, the '..._GFp' prefix has been dropped from
2990 various internal method names.)
2992 An internal 'field_div' method (similar to 'field_mul' and
2993 'field_sqr') has been added; this is used only for binary fields.
2995 [Sheueling Chang Shantz and Douglas Stebila
2996 (Sun Microsystems Laboratories)]
2998 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
2999 through methods ('mul', 'precompute_mult').
3001 The generic implementations (now internally called 'ec_wNAF_mul'
3002 and 'ec_wNAF_precomputed_mult') remain the default if these
3003 methods are undefined.
3005 [Sheueling Chang Shantz and Douglas Stebila
3006 (Sun Microsystems Laboratories)]
3008 *) New function EC_GROUP_get_degree, which is defined through
3009 EC_METHOD. For curves over prime fields, this returns the bit
3010 length of the modulus.
3012 [Sheueling Chang Shantz and Douglas Stebila
3013 (Sun Microsystems Laboratories)]
3015 *) New functions EC_GROUP_dup, EC_POINT_dup.
3016 (These simply call ..._new and ..._copy).
3018 [Sheueling Chang Shantz and Douglas Stebila
3019 (Sun Microsystems Laboratories)]
3021 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
3022 Polynomials are represented as BIGNUMs (where the sign bit is not
3023 used) in the following functions [macros]:
3026 BN_GF2m_sub [= BN_GF2m_add]
3027 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
3028 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
3029 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
3031 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
3032 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
3033 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
3034 BN_GF2m_cmp [= BN_ucmp]
3036 (Note that only the 'mod' functions are actually for fields GF(2^m).
3037 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
3039 For some functions, an the irreducible polynomial defining a
3040 field can be given as an 'unsigned int[]' with strictly
3041 decreasing elements giving the indices of those bits that are set;
3042 i.e., p[] represents the polynomial
3043 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
3045 p[0] > p[1] > ... > p[k] = 0.
3046 This applies to the following functions:
3051 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
3052 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
3054 BN_GF2m_mod_sqrt_arr
3055 BN_GF2m_mod_solve_quad_arr
3059 Conversion can be performed by the following functions:
3064 bntest.c has additional tests for binary polynomial arithmetic.
3066 Two implementations for BN_GF2m_mod_div() are available.
3067 The default algorithm simply uses BN_GF2m_mod_inv() and
3068 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
3069 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
3070 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
3072 [Sheueling Chang Shantz and Douglas Stebila
3073 (Sun Microsystems Laboratories)]
3075 *) Add new error code 'ERR_R_DISABLED' that can be used when some
3076 functionality is disabled at compile-time.
3077 [Douglas Stebila <douglas.stebila@sun.com>]
3079 *) Change default behaviour of 'openssl asn1parse' so that more
3080 information is visible when viewing, e.g., a certificate:
3082 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
3083 mode the content of non-printable OCTET STRINGs is output in a
3084 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
3085 avoid the appearance of a printable string.
3086 [Nils Larsch <nla@trustcenter.de>]
3088 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
3090 EC_GROUP_set_asn1_flag()
3091 EC_GROUP_get_asn1_flag()
3092 EC_GROUP_set_point_conversion_form()
3093 EC_GROUP_get_point_conversion_form()
3094 These control ASN1 encoding details:
3095 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
3096 has been set to OPENSSL_EC_NAMED_CURVE.
3097 - Points are encoded in uncompressed form by default; options for
3098 asn1_for are as for point2oct, namely
3099 POINT_CONVERSION_COMPRESSED
3100 POINT_CONVERSION_UNCOMPRESSED
3101 POINT_CONVERSION_HYBRID
3103 Also add 'seed' and 'seed_len' members to EC_GROUP with access
3106 EC_GROUP_get0_seed()
3107 EC_GROUP_get_seed_len()
3108 This is used only for ASN1 purposes (so far).
3109 [Nils Larsch <nla@trustcenter.de>]
3111 *) Add 'field_type' member to EC_METHOD, which holds the NID
3112 of the appropriate field type OID. The new function
3113 EC_METHOD_get_field_type() returns this value.
3114 [Nils Larsch <nla@trustcenter.de>]
3119 EC_POINT_point2hex()
3120 EC_POINT_hex2point()
3121 providing useful interfaces to EC_POINT_point2oct() and
3122 EC_POINT_oct2point().
3123 [Nils Larsch <nla@trustcenter.de>]
3125 *) Change internals of the EC library so that the functions
3126 EC_GROUP_set_generator()
3127 EC_GROUP_get_generator()
3128 EC_GROUP_get_order()
3129 EC_GROUP_get_cofactor()
3130 are implemented directly in crypto/ec/ec_lib.c and not dispatched
3131 to methods, which would lead to unnecessary code duplication when
3132 adding different types of curves.
3133 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
3135 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
3136 arithmetic, and such that modified wNAFs are generated
3137 (which avoid length expansion in many cases).
3140 *) Add a function EC_GROUP_check_discriminant() (defined via
3141 EC_METHOD) that verifies that the curve discriminant is non-zero.
3143 Add a function EC_GROUP_check() that makes some sanity tests
3144 on a EC_GROUP, its generator and order. This includes
3145 EC_GROUP_check_discriminant().
3146 [Nils Larsch <nla@trustcenter.de>]
3148 *) Add ECDSA in new directory crypto/ecdsa/.
3150 Add applications 'openssl ecparam' and 'openssl ecdsa'
3151 (these are based on 'openssl dsaparam' and 'openssl dsa').
3153 ECDSA support is also included in various other files across the
3154 library. Most notably,
3155 - 'openssl req' now has a '-newkey ecdsa:file' option;
3156 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
3157 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
3158 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
3159 them suitable for ECDSA where domain parameters must be
3160 extracted before the specific public key;
3161 - ECDSA engine support has been added.
3162 [Nils Larsch <nla@trustcenter.de>]
3164 *) Include some named elliptic curves, and add OIDs from X9.62,
3165 SECG, and WAP/WTLS. Each curve can be obtained from the new
3167 EC_GROUP_new_by_curve_name(),
3168 and the list of available named curves can be obtained with
3169 EC_get_builtin_curves().
3170 Also add a 'curve_name' member to EC_GROUP objects, which can be
3172 EC_GROUP_set_curve_name()
3173 EC_GROUP_get_curve_name()
3174 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
3176 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3177 was actually never needed) and in BN_mul(). The removal in BN_mul()
3178 required a small change in bn_mul_part_recursive() and the addition
3179 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3180 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3181 bn_sub_words() and bn_add_words() except they take arrays with
3185 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
3187 *) Cleanse PEM buffers before freeing them since they may contain
3189 [Benjamin Bennett <ben@psc.edu>]
3191 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3192 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3193 authentication-only ciphersuites.
3196 *) Since AES128 and AES256 share a single mask bit in the logic of
3197 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3198 kludge to work properly if AES128 is available and AES256 isn't.
3201 *) Expand security boundary to match 1.1.1 module.
3204 *) Remove redundant features: hash file source, editing of test vectors
3205 modify fipsld to use external fips_premain.c signature.
3208 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3209 run algorithm test programs.
3212 *) Make algorithm test programs more tolerant of whitespace.
3215 *) Have SSL/TLS server implementation tolerate "mismatched" record
3216 protocol version while receiving ClientHello even if the
3217 ClientHello is fragmented. (The server can't insist on the
3218 particular protocol version it has chosen before the ServerHello
3219 message has informed the client about his choice.)
3222 *) Load error codes if they are not already present instead of using a
3223 static variable. This allows them to be cleanly unloaded and reloaded.
3226 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3228 *) Introduce limits to prevent malicious keys being able to
3229 cause a denial of service. (CVE-2006-2940)
3230 [Steve Henson, Bodo Moeller]
3232 *) Fix ASN.1 parsing of certain invalid structures that can result
3233 in a denial of service. (CVE-2006-2937) [Steve Henson]
3235 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3236 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3238 *) Fix SSL client code which could crash if connecting to a
3239 malicious SSLv2 server. (CVE-2006-4343)
3240 [Tavis Ormandy and Will Drewry, Google Security Team]
3242 *) Change ciphersuite string processing so that an explicit
3243 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3244 will no longer include "AES128-SHA"), and any other similar
3245 ciphersuite (same bitmap) from *other* protocol versions (so that
3246 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3247 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3248 changes from 0.9.8b and 0.9.8d.
3251 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3253 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3254 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3256 *) Change the Unix randomness entropy gathering to use poll() when
3257 possible instead of select(), since the latter has some
3258 undesirable limitations.
3259 [Darryl Miles via Richard Levitte and Bodo Moeller]
3261 *) Disable rogue ciphersuites:
3263 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3264 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3265 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3267 The latter two were purportedly from
3268 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3271 Also deactive the remaining ciphersuites from
3272 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3273 unofficial, and the ID has long expired.
3276 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3277 dual-core machines) and other potential thread-safety issues.
3280 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3282 *) Adapt fipsld and the build system to link against the validated FIPS
3283 module in FIPS mode.
3286 *) Fixes for VC++ 2005 build under Windows.
3289 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3290 from a Windows bash shell such as MSYS. It is autodetected from the
3291 "config" script when run from a VC++ environment. Modify standard VC++
3292 build to use fipscanister.o from the GNU make build.
3295 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3297 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3298 The value now differs depending on if you build for FIPS or not.
3299 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3300 safely run with a non-FIPSed libcrypto, as it may crash because of
3301 the difference induced by this change.
3304 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3306 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3307 (part of SSL_OP_ALL). This option used to disable the
3308 countermeasure against man-in-the-middle protocol-version
3309 rollback in the SSL 2.0 server implementation, which is a bad
3310 idea. (CVE-2005-2969)
3312 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3313 for Information Security, National Institute of Advanced Industrial
3314 Science and Technology [AIST], Japan)]
3316 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3317 mainly for FIPS compliance and not fully integrated at this stage.
3320 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3321 the exponentiation using a fixed-length exponent. (Otherwise,
3322 the information leaked through timing could expose the secret key
3323 after many signatures; cf. Bleichenbacher's attack on DSA with
3327 *) Make a new fixed-window mod_exp implementation the default for
3328 RSA, DSA, and DH private-key operations so that the sequence of
3329 squares and multiplies and the memory access pattern are
3330 independent of the particular secret key. This will mitigate
3331 cache-timing and potential related attacks.
3333 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3334 and this is automatically used by BN_mod_exp_mont() if the new flag
3335 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3336 will use this BN flag for private exponents unless the flag
3337 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3338 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3340 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3342 *) Change the client implementation for SSLv23_method() and
3343 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3344 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3345 (Previously, the SSL 2.0 backwards compatible Client Hello
3346 message format would be used even with SSL_OP_NO_SSLv2.)
3349 *) Add support for smime-type MIME parameter in S/MIME messages which some
3353 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3354 a threadsafe manner. Modify rsa code to use new function and add calls
3355 to dsa and dh code (which had race conditions before).
3358 *) Include the fixed error library code in the C error file definitions
3359 instead of fixing them up at runtime. This keeps the error code
3360 structures constant.
3363 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3365 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3368 *) Fixes for newer kerberos headers. NB: the casts are needed because
3369 the 'length' field is signed on one version and unsigned on another
3370 with no (?) obvious way to tell the difference, without these VC++
3371 complains. Also the "definition" of FAR (blank) is no longer included
3372 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3373 some needed definitions.
3376 *) Undo Cygwin change.
3379 *) Added support for proxy certificates according to RFC 3820.
3380 Because they may be a security thread to unaware applications,
3381 they must be explicitely allowed in run-time. See
3382 docs/HOWTO/proxy_certificates.txt for further information.
3385 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3387 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3388 server and client random values. Previously
3389 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3390 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3392 This change has negligible security impact because:
3394 1. Server and client random values still have 24 bytes of pseudo random
3397 2. Server and client random values are sent in the clear in the initial
3400 3. The master secret is derived using the premaster secret (48 bytes in
3401 size for static RSA ciphersuites) as well as client server and random
3404 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3407 [Stephen Henson, reported by UK NISCC]
3409 *) Use Windows randomness collection on Cygwin.
3412 *) Fix hang in EGD/PRNGD query when communication socket is closed
3413 prematurely by EGD/PRNGD.
3414 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3416 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3419 *) Back-port of selected performance improvements from development
3420 branch, as well as improved support for PowerPC platforms.
3423 *) Add lots of checks for memory allocation failure, error codes to indicate
3424 failure and freeing up memory if a failure occurs.
3425 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3427 *) Add new -passin argument to dgst.
3430 *) Perform some character comparisons of different types in X509_NAME_cmp:
3431 this is needed for some certificates that reencode DNs into UTF8Strings
3432 (in violation of RFC3280) and can't or wont issue name rollover
3436 *) Make an explicit check during certificate validation to see that
3437 the CA setting in each certificate on the chain is correct. As a
3438 side effect always do the following basic checks on extensions,
3439 not just when there's an associated purpose to the check:
3441 - if there is an unhandled critical extension (unless the user
3442 has chosen to ignore this fault)
3443 - if the path length has been exceeded (if one is set at all)
3444 - that certain extensions fit the associated purpose (if one has
3448 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3450 *) Avoid a race condition when CRLs are checked in a multi threaded
3451 environment. This would happen due to the reordering of the revoked
3452 entries during signature checking and serial number lookup. Now the
3453 encoding is cached and the serial number sort performed under a lock.
3454 Add new STACK function sk_is_sorted().
3457 *) Add Delta CRL to the extension code.
3460 *) Various fixes to s3_pkt.c so alerts are sent properly.
3461 [David Holmes <d.holmes@f5.com>]
3463 *) Reduce the chances of duplicate issuer name and serial numbers (in
3464 violation of RFC3280) using the OpenSSL certificate creation utilities.
3465 This is done by creating a random 64 bit value for the initial serial
3466 number when a serial number file is created or when a self signed
3467 certificate is created using 'openssl req -x509'. The initial serial
3468 number file is created using 'openssl x509 -next_serial' in CA.pl
3469 rather than being initialized to 1.
3472 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3474 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3475 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3476 [Joe Orton, Steve Henson]
3478 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3480 [Joe Orton, Steve Henson]
3482 *) Make it possible to have multiple active certificates with the same
3483 subject in the CA index file. This is done only if the keyword
3484 'unique_subject' is set to 'no' in the main CA section (default
3485 if 'CA_default') of the configuration file. The value is saved
3486 with the database itself in a separate index attribute file,
3487 named like the index file with '.attr' appended to the name.
3490 *) X509 verify fixes. Disable broken certificate workarounds when
3491 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3492 keyUsage extension present. Don't accept CRLs with unhandled critical
3493 extensions: since verify currently doesn't process CRL extensions this
3494 rejects a CRL with *any* critical extensions. Add new verify error codes
3498 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3499 A clarification of RFC2560 will require the use of OCTET STRINGs and
3500 some implementations cannot handle the current raw format. Since OpenSSL
3501 copies and compares OCSP nonces as opaque blobs without any attempt at
3502 parsing them this should not create any compatibility issues.
3505 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3506 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3507 this HMAC (and other) operations are several times slower than OpenSSL
3511 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3512 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3514 *) Use the correct content when signing type "other".
3517 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3519 *) Fix various bugs revealed by running the NISCC test suite:
3521 Stop out of bounds reads in the ASN1 code when presented with
3522 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3524 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3526 If verify callback ignores invalid public key errors don't try to check
3527 certificate signature with the NULL public key.
3531 *) New -ignore_err option in ocsp application to stop the server
3532 exiting on the first error in a request.
3535 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3536 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3540 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3541 extra data after the compression methods not only for TLS 1.0
3542 but also for SSL 3.0 (as required by the specification).
3543 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3545 *) Change X509_certificate_type() to mark the key as exported/exportable
3546 when it's 512 *bits* long, not 512 bytes.
3549 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3550 blocks during encryption.
3553 *) Various fixes to base64 BIO and non blocking I/O. On write
3554 flushes were not handled properly if the BIO retried. On read
3555 data was not being buffered properly and had various logic bugs.
3556 This also affects blocking I/O when the data being decoded is a
3560 *) Various S/MIME bugfixes and compatibility changes:
3561 output correct application/pkcs7 MIME type if
3562 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3563 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3564 of files as .eml work). Correctly handle very long lines in MIME
3568 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3570 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3571 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3572 a protocol version number mismatch like a decryption error
3573 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3576 *) Turn on RSA blinding by default in the default implementation
3577 to avoid a timing attack. Applications that don't want it can call
3578 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3579 They would be ill-advised to do so in most cases.
3580 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3582 *) Change RSA blinding code so that it works when the PRNG is not
3583 seeded (in this case, the secret RSA exponent is abused as
3584 an unpredictable seed -- if it is not unpredictable, there
3585 is no point in blinding anyway). Make RSA blinding thread-safe
3586 by remembering the creator's thread ID in rsa->blinding and
3587 having all other threads use local one-time blinding factors
3588 (this requires more computation than sharing rsa->blinding, but
3589 avoids excessive locking; and if an RSA object is not shared
3590 between threads, blinding will still be very fast).
3593 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3594 ENGINE as defaults for all supported algorithms irrespective of
3595 the 'flags' parameter. 'flags' is now honoured, so applications
3596 should make sure they are passing it correctly.
3599 *) Target "mingw" now allows native Windows code to be generated in
3600 the Cygwin environment as well as with the MinGW compiler.
3603 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3605 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3606 via timing by performing a MAC computation even if incorrrect
3607 block cipher padding has been found. This is a countermeasure
3608 against active attacks where the attacker has to distinguish
3609 between bad padding and a MAC verification error. (CVE-2003-0078)
3611 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3612 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3613 Martin Vuagnoux (EPFL, Ilion)]
3615 *) Make the no-err option work as intended. The intention with no-err
3616 is not to have the whole error stack handling routines removed from
3617 libcrypto, it's only intended to remove all the function name and
3618 reason texts, thereby removing some of the footprint that may not
3619 be interesting if those errors aren't displayed anyway.
3621 NOTE: it's still possible for any application or module to have it's
3622 own set of error texts inserted. The routines are there, just not
3623 used by default when no-err is given.
3626 *) Add support for FreeBSD on IA64.
3627 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3629 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3630 Kerberos function mit_des_cbc_cksum(). Before this change,
3631 the value returned by DES_cbc_cksum() was like the one from
3632 mit_des_cbc_cksum(), except the bytes were swapped.
3633 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3635 *) Allow an application to disable the automatic SSL chain building.
3636 Before this a rather primitive chain build was always performed in
3637 ssl3_output_cert_chain(): an application had no way to send the
3638 correct chain if the automatic operation produced an incorrect result.
3640 Now the chain builder is disabled if either:
3642 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3644 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3646 The reasoning behind this is that an application would not want the
3647 auto chain building to take place if extra chain certificates are
3648 present and it might also want a means of sending no additional
3649 certificates (for example the chain has two certificates and the
3653 *) Add the possibility to build without the ENGINE framework.
3654 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3656 *) Under Win32 gmtime() can return NULL: check return value in
3657 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3660 *) DSA routines: under certain error conditions uninitialized BN objects
3661 could be freed. Solution: make sure initialization is performed early
3662 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3663 Nils Larsch <nla@trustcenter.de> via PR#459)
3666 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3667 checked on reconnect on the client side, therefore session resumption
3668 could still fail with a "ssl session id is different" error. This
3669 behaviour is masked when SSL_OP_ALL is used due to
3670 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3671 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3672 followup to PR #377.
3675 *) IA-32 assembler support enhancements: unified ELF targets, support
3676 for SCO/Caldera platforms, fix for Cygwin shared build.
3679 *) Add support for FreeBSD on sparc64. As a consequence, support for
3680 FreeBSD on non-x86 processors is separate from x86 processors on
3681 the config script, much like the NetBSD support.
3682 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3684 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3686 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3689 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3690 code (06) was taken as the first octet of the session ID and the last
3691 octet was ignored consequently. As a result SSLv2 client side session
3692 caching could not have worked due to the session ID mismatch between
3694 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3698 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3699 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3703 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3704 seems that in spite of existing for more than a year, many application
3705 author have done nothing to provide the necessary callbacks, which
3706 means that this particular engine will not work properly anywhere.
3707 This is a very unfortunate situation which forces us, in the name
3708 of usability, to give the hw_ncipher.c a static lock, which is part
3710 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3711 appear in 0.9.8 or later. We EXPECT application authors to have
3712 dealt properly with this when 0.9.8 is released (unless we actually
3713 make such changes in the libcrypto locking code that changes will
3714 have to be made anyway).
3717 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3718 octets have been read, EOF or an error occurs. Without this change
3719 some truncated ASN1 structures will not produce an error.
3722 *) Disable Heimdal support, since it hasn't been fully implemented.
3723 Still give the possibility to force the use of Heimdal, but with
3724 warnings and a request that patches get sent to openssl-dev.
3727 *) Add the VC-CE target, introduce the WINCE sysname, and add
3728 INSTALL.WCE and appropriate conditionals to make it build.
3729 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3731 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3732 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3733 edit numbers of the version.
3734 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3736 *) Introduce safe string copy and catenation functions
3737 (BUF_strlcpy() and BUF_strlcat()).
3738 [Ben Laurie (CHATS) and Richard Levitte]
3740 *) Avoid using fixed-size buffers for one-line DNs.
3741 [Ben Laurie (CHATS)]
3743 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3744 resizing buffers containing secrets, and use where appropriate.
3745 [Ben Laurie (CHATS)]
3747 *) Avoid using fixed size buffers for configuration file location.
3748 [Ben Laurie (CHATS)]
3750 *) Avoid filename truncation for various CA files.
3751 [Ben Laurie (CHATS)]
3753 *) Use sizeof in preference to magic numbers.
3754 [Ben Laurie (CHATS)]
3756 *) Avoid filename truncation in cert requests.
3757 [Ben Laurie (CHATS)]
3759 *) Add assertions to check for (supposedly impossible) buffer
3761 [Ben Laurie (CHATS)]
3763 *) Don't cache truncated DNS entries in the local cache (this could
3764 potentially lead to a spoofing attack).
3765 [Ben Laurie (CHATS)]
3767 *) Fix various buffers to be large enough for hex/decimal
3768 representations in a platform independent manner.
3769 [Ben Laurie (CHATS)]
3771 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3772 resizing buffers containing secrets, and use where appropriate.
3773 [Ben Laurie (CHATS)]
3775 *) Add BIO_indent() to avoid much slightly worrying code to do
3777 [Ben Laurie (CHATS)]
3779 *) Convert sprintf()/BIO_puts() to BIO_printf().
3780 [Ben Laurie (CHATS)]
3782 *) buffer_gets() could terminate with the buffer only half
3784 [Ben Laurie (CHATS)]
3786 *) Add assertions to prevent user-supplied crypto functions from
3787 overflowing internal buffers by having large block sizes, etc.
3788 [Ben Laurie (CHATS)]
3790 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3792 [Ben Laurie (CHATS)]
3794 *) Eliminate unused copy of key in RC4.
3795 [Ben Laurie (CHATS)]
3797 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3798 [Ben Laurie (CHATS)]
3800 *) Fix off-by-one error in EGD path.
3801 [Ben Laurie (CHATS)]
3803 *) If RANDFILE path is too long, ignore instead of truncating.
3804 [Ben Laurie (CHATS)]
3806 *) Eliminate unused and incorrectly sized X.509 structure
3808 [Ben Laurie (CHATS)]
3810 *) Eliminate unused and dangerous function knumber().
3811 [Ben Laurie (CHATS)]
3813 *) Eliminate unused and dangerous structure, KSSL_ERR.
3814 [Ben Laurie (CHATS)]
3816 *) Protect against overlong session ID context length in an encoded
3817 session object. Since these are local, this does not appear to be
3819 [Ben Laurie (CHATS)]
3821 *) Change from security patch (see 0.9.6e below) that did not affect
3822 the 0.9.6 release series:
3824 Remote buffer overflow in SSL3 protocol - an attacker could
3825 supply an oversized master key in Kerberos-enabled versions.
3827 [Ben Laurie (CHATS)]
3829 *) Change the SSL kerb5 codes to match RFC 2712.
3832 *) Make -nameopt work fully for req and add -reqopt switch.
3833 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3835 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3836 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3838 *) Make sure tests can be performed even if the corresponding algorithms
3839 have been removed entirely. This was also the last step to make
3840 OpenSSL compilable with DJGPP under all reasonable conditions.
3841 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3843 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3844 to allow version independent disabling of normally unselected ciphers,
3845 which may be activated as a side-effect of selecting a single cipher.
3847 (E.g., cipher list string "RSA" enables ciphersuites that are left
3848 out of "ALL" because they do not provide symmetric encryption.
3849 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3850 [Lutz Jaenicke, Bodo Moeller]
3852 *) Add appropriate support for separate platform-dependent build
3853 directories. The recommended way to make a platform-dependent
3854 build directory is the following (tested on Linux), maybe with
3857 # Place yourself outside of the OpenSSL source tree. In
3858 # this example, the environment variable OPENSSL_SOURCE
3859 # is assumed to contain the absolute OpenSSL source directory.
3860 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3861 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3862 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3863 mkdir -p `dirname $F`
3864 ln -s $OPENSSL_SOURCE/$F $F
3867 To be absolutely sure not to disturb the source tree, a "make clean"
3868 is a good thing. If it isn't successfull, don't worry about it,
3869 it probably means the source directory is very clean.
3872 *) Make sure any ENGINE control commands make local copies of string
3873 pointers passed to them whenever necessary. Otherwise it is possible
3874 the caller may have overwritten (or deallocated) the original string
3875 data when a later ENGINE operation tries to use the stored values.
3876 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3878 *) Improve diagnostics in file reading and command-line digests.
3879 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3881 *) Add AES modes CFB and OFB to the object database. Correct an
3882 error in AES-CFB decryption.
3885 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3886 allows existing EVP_CIPHER_CTX structures to be reused after
3887 calling EVP_*Final(). This behaviour is used by encryption
3888 BIOs and some applications. This has the side effect that
3889 applications must explicitly clean up cipher contexts with
3890 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3893 *) Check the values of dna and dnb in bn_mul_recursive before calling
3894 bn_mul_comba (a non zero value means the a or b arrays do not contain
3895 n2 elements) and fallback to bn_mul_normal if either is not zero.
3898 *) Fix escaping of non-ASCII characters when using the -subj option
3899 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3902 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3903 form for "surname", serialNumber has no short form.
3904 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3905 therefore remove "mail" short name for "internet 7".
3906 The OID for unique identifiers in X509 certificates is
3907 x500UniqueIdentifier, not uniqueIdentifier.
3908 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3911 *) Add an "init" command to the ENGINE config module and auto initialize
3912 ENGINEs. Without any "init" command the ENGINE will be initialized
3913 after all ctrl commands have been executed on it. If init=1 the
3914 ENGINE is initailized at that point (ctrls before that point are run
3915 on the uninitialized ENGINE and after on the initialized one). If
3916 init=0 then the ENGINE will not be iniatialized at all.
3919 *) Fix the 'app_verify_callback' interface so that the user-defined
3920 argument is actually passed to the callback: In the
3921 SSL_CTX_set_cert_verify_callback() prototype, the callback
3922 declaration has been changed from
3925 int (*cb)(X509_STORE_CTX *,void *);
3926 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3927 i=s->ctx->app_verify_callback(&ctx)
3928 has been changed into
3929 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3931 To update applications using SSL_CTX_set_cert_verify_callback(),
3932 a dummy argument can be added to their callback functions.
3933 [D. K. Smetters <smetters@parc.xerox.com>]
3935 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3936 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3938 *) Add and OPENSSL_LOAD_CONF define which will cause
3939 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3940 This allows older applications to transparently support certain
3941 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3942 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3943 load the config file and OPENSSL_add_all_algorithms_conf() which will
3944 always load it have also been added.
3947 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3948 Adjust NIDs and EVP layer.
3949 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3951 *) Config modules support in openssl utility.
3953 Most commands now load modules from the config file,
3954 though in a few (such as version) this isn't done
3955 because it couldn't be used for anything.
3957 In the case of ca and req the config file used is
3958 the same as the utility itself: that is the -config
3959 command line option can be used to specify an
3963 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3964 use "openssl_conf" if filename is NULL use default openssl config file.
3967 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3968 config section name. Add a new flag to tolerate a missing config file
3969 and move code to CONF_modules_load_file().
3972 *) Support for crypto accelerator cards from Accelerated Encryption
3973 Processing, www.aep.ie. (Use engine 'aep')
3974 The support was copied from 0.9.6c [engine] and adapted/corrected
3975 to work with the new engine framework.
3976 [AEP Inc. and Richard Levitte]
3978 *) Support for SureWare crypto accelerator cards from Baltimore
3979 Technologies. (Use engine 'sureware')
3980 The support was copied from 0.9.6c [engine] and adapted
3981 to work with the new engine framework.
3984 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3985 make the newer ENGINE framework commands for the CHIL engine work.
3986 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
3988 *) Make it possible to produce shared libraries on ReliantUNIX.
3989 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
3991 *) Add the configuration target debug-linux-ppro.
3992 Make 'openssl rsa' use the general key loading routines
3993 implemented in apps.c, and make those routines able to
3994 handle the key format FORMAT_NETSCAPE and the variant
3996 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3998 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3999 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4001 *) Add -keyform to rsautl, and document -engine.
4002 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
4004 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
4005 BIO_R_NO_SUCH_FILE error code rather than the generic
4006 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
4009 *) Add new functions
4011 ERR_peek_last_error_line
4012 ERR_peek_last_error_line_data.
4013 These are similar to
4016 ERR_peek_error_line_data,
4017 but report on the latest error recorded rather than the first one
4018 still in the error queue.
4019 [Ben Laurie, Bodo Moeller]
4021 *) default_algorithms option in ENGINE config module. This allows things
4023 default_algorithms = ALL
4024 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
4027 *) Prelminary ENGINE config module.
4030 *) New experimental application configuration code.
4033 *) Change the AES code to follow the same name structure as all other
4034 symmetric ciphers, and behave the same way. Move everything to
4035 the directory crypto/aes, thereby obsoleting crypto/rijndael.
4036 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4038 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
4039 [Ben Laurie and Theo de Raadt]
4041 *) Add option to output public keys in req command.
4042 [Massimiliano Pala madwolf@openca.org]
4044 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
4045 (up to about 10% better than before for P-192 and P-224).
4048 *) New functions/macros
4050 SSL_CTX_set_msg_callback(ctx, cb)
4051 SSL_CTX_set_msg_callback_arg(ctx, arg)
4052 SSL_set_msg_callback(ssl, cb)
4053 SSL_set_msg_callback_arg(ssl, arg)
4055 to request calling a callback function
4057 void cb(int write_p, int version, int content_type,
4058 const void *buf, size_t len, SSL *ssl, void *arg)
4060 whenever a protocol message has been completely received
4061 (write_p == 0) or sent (write_p == 1). Here 'version' is the
4062 protocol version according to which the SSL library interprets
4063 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
4064 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
4065 the content type as defined in the SSL 3.0/TLS 1.0 protocol
4066 specification (change_cipher_spec(20), alert(21), handshake(22)).
4067 'buf' and 'len' point to the actual message, 'ssl' to the
4068 SSL object, and 'arg' is the application-defined value set by
4069 SSL[_CTX]_set_msg_callback_arg().
4071 'openssl s_client' and 'openssl s_server' have new '-msg' options
4072 to enable a callback that displays all protocol messages.
4075 *) Change the shared library support so shared libraries are built as
4076 soon as the corresponding static library is finished, and thereby get
4077 openssl and the test programs linked against the shared library.
4078 This still only happens when the keyword "shard" has been given to
4079 the configuration scripts.
4081 NOTE: shared library support is still an experimental thing, and
4082 backward binary compatibility is still not guaranteed.
4083 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
4085 *) Add support for Subject Information Access extension.
4086 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4088 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
4089 additional bytes when new memory had to be allocated, not just
4090 when reusing an existing buffer.
4093 *) New command line and configuration option 'utf8' for the req command.
4094 This allows field values to be specified as UTF8 strings.
4097 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
4098 runs for the former and machine-readable output for the latter.
4101 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
4102 of the e-mail address in the DN (i.e., it will go into a certificate
4103 extension only). The new configuration file option 'email_in_dn = no'
4104 has the same effect.
4105 [Massimiliano Pala madwolf@openca.org]
4107 *) Change all functions with names starting with des_ to be starting
4108 with DES_ instead. Add wrappers that are compatible with libdes,
4109 but are named _ossl_old_des_*. Finally, add macros that map the
4110 des_* symbols to the corresponding _ossl_old_des_* if libdes
4111 compatibility is desired. If OpenSSL 0.9.6c compatibility is
4112 desired, the des_* symbols will be mapped to DES_*, with one
4115 Since we provide two compatibility mappings, the user needs to
4116 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
4117 compatibility is desired. The default (i.e., when that macro
4118 isn't defined) is OpenSSL 0.9.6c compatibility.
4120 There are also macros that enable and disable the support of old
4121 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
4122 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
4123 are defined, the default will apply: to support the old des routines.
4125 In either case, one must include openssl/des.h to get the correct
4126 definitions. Do not try to just include openssl/des_old.h, that
4129 NOTE: This is a major break of an old API into a new one. Software
4130 authors are encouraged to switch to the DES_ style functions. Some
4131 time in the future, des_old.h and the libdes compatibility functions
4132 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
4133 default), and then completely removed.
4136 *) Test for certificates which contain unsupported critical extensions.
4137 If such a certificate is found during a verify operation it is
4138 rejected by default: this behaviour can be overridden by either
4139 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
4140 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
4141 X509_supported_extension() has also been added which returns 1 if a
4142 particular extension is supported.
4145 *) Modify the behaviour of EVP cipher functions in similar way to digests
4146 to retain compatibility with existing code.
4149 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
4150 compatibility with existing code. In particular the 'ctx' parameter does
4151 not have to be to be initialized before the call to EVP_DigestInit() and
4152 it is tidied up after a call to EVP_DigestFinal(). New function
4153 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
4154 EVP_MD_CTX_copy() changed to not require the destination to be
4155 initialized valid and new function EVP_MD_CTX_copy_ex() added which
4156 requires the destination to be valid.
4158 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
4159 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
4162 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
4163 so that complete 'Handshake' protocol structures are kept in memory
4164 instead of overwriting 'msg_type' and 'length' with 'body' data.
4167 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
4168 [Massimo Santin via Richard Levitte]
4170 *) Major restructuring to the underlying ENGINE code. This includes
4171 reduction of linker bloat, separation of pure "ENGINE" manipulation
4172 (initialisation, etc) from functionality dealing with implementations
4173 of specific crypto iterfaces. This change also introduces integrated
4174 support for symmetric ciphers and digest implementations - so ENGINEs
4175 can now accelerate these by providing EVP_CIPHER and EVP_MD
4176 implementations of their own. This is detailed in crypto/engine/README
4177 as it couldn't be adequately described here. However, there are a few
4178 API changes worth noting - some RSA, DSA, DH, and RAND functions that
4179 were changed in the original introduction of ENGINE code have now
4180 reverted back - the hooking from this code to ENGINE is now a good
4181 deal more passive and at run-time, operations deal directly with
4182 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
4183 dereferencing through an ENGINE pointer any more. Also, the ENGINE
4184 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
4185 they were not being used by the framework as there is no concept of a
4186 BIGNUM_METHOD and they could not be generalised to the new
4187 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
4188 ENGINE_cpy() has been removed as it cannot be consistently defined in
4192 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
4195 *) Change mkdef.pl to sort symbols that get the same entry number,
4196 and make sure the automatically generated functions ERR_load_*
4197 become part of libeay.num as well.
4200 *) New function SSL_renegotiate_pending(). This returns true once
4201 renegotiation has been requested (either SSL_renegotiate() call
4202 or HelloRequest/ClientHello receveived from the peer) and becomes
4203 false once a handshake has been completed.
4204 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
4205 sends a HelloRequest, but does not ensure that a handshake takes
4206 place. SSL_renegotiate_pending() is useful for checking if the
4207 client has followed the request.)
4210 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
4211 By default, clients may request session resumption even during
4212 renegotiation (if session ID contexts permit); with this option,
4213 session resumption is possible only in the first handshake.
4215 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
4216 more bits available for options that should not be part of
4217 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
4220 *) Add some demos for certificate and certificate request creation.
4223 *) Make maximum certificate chain size accepted from the peer application
4224 settable (SSL*_get/set_max_cert_list()), as proposed by
4225 "Douglas E. Engert" <deengert@anl.gov>.
4228 *) Add support for shared libraries for Unixware-7
4229 (Boyd Lynn Gerber <gerberb@zenez.com>).
4232 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
4233 be done prior to destruction. Use this to unload error strings from
4234 ENGINEs that load their own error strings. NB: This adds two new API
4235 functions to "get" and "set" this destroy handler in an ENGINE.
4238 *) Alter all existing ENGINE implementations (except "openssl" and
4239 "openbsd") to dynamically instantiate their own error strings. This
4240 makes them more flexible to be built both as statically-linked ENGINEs
4241 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
4242 Also, add stub code to each that makes building them as self-contained
4243 shared-libraries easier (see README.ENGINE).
4246 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
4247 implementations into applications that are completely implemented in
4248 self-contained shared-libraries. The "dynamic" ENGINE exposes control
4249 commands that can be used to configure what shared-library to load and
4250 to control aspects of the way it is handled. Also, made an update to
4251 the README.ENGINE file that brings its information up-to-date and
4252 provides some information and instructions on the "dynamic" ENGINE
4253 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4256 *) Make it possible to unload ranges of ERR strings with a new
4257 "ERR_unload_strings" function.
4260 *) Add a copy() function to EVP_MD.
4263 *) Make EVP_MD routines take a context pointer instead of just the
4264 md_data void pointer.
4267 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4268 that the digest can only process a single chunk of data
4269 (typically because it is provided by a piece of
4270 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4271 is only going to provide a single chunk of data, and hence the
4272 framework needn't accumulate the data for oneshot drivers.
4275 *) As with "ERR", make it possible to replace the underlying "ex_data"
4276 functions. This change also alters the storage and management of global
4277 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4278 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4279 index counters. The API functions that use this state have been changed
4280 to take a "class_index" rather than pointers to the class's local STACK
4281 and counter, and there is now an API function to dynamically create new
4282 classes. This centralisation allows us to (a) plug a lot of the
4283 thread-safety problems that existed, and (b) makes it possible to clean
4284 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4285 such data would previously have always leaked in application code and
4286 workarounds were in place to make the memory debugging turn a blind eye
4287 to it. Application code that doesn't use this new function will still
4288 leak as before, but their memory debugging output will announce it now
4289 rather than letting it slide.
4291 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4292 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4293 has a return value to indicate success or failure.
4296 *) Make it possible to replace the underlying "ERR" functions such that the
4297 global state (2 LHASH tables and 2 locks) is only used by the "default"
4298 implementation. This change also adds two functions to "get" and "set"
4299 the implementation prior to it being automatically set the first time
4300 any other ERR function takes place. Ie. an application can call "get",
4301 pass the return value to a module it has just loaded, and that module
4302 can call its own "set" function using that value. This means the
4303 module's "ERR" operations will use (and modify) the error state in the
4304 application and not in its own statically linked copy of OpenSSL code.
4307 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4308 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4309 the operation, and provides a more encapsulated way for external code
4310 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4311 to use these functions rather than manually incrementing the counts.
4313 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4316 *) Add EVP test program.
4319 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4322 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4323 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4324 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4325 These allow a CRL to be built without having to access X509_CRL fields
4326 directly. Modify 'ca' application to use new functions.
4329 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4330 bug workarounds. Rollback attack detection is a security feature.
4331 The problem will only arise on OpenSSL servers when TLSv1 is not
4332 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4333 Software authors not wanting to support TLSv1 will have special reasons
4334 for their choice and can explicitly enable this option.
4335 [Bodo Moeller, Lutz Jaenicke]
4337 *) Rationalise EVP so it can be extended: don't include a union of
4338 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4339 (similar to those existing for EVP_CIPHER_CTX).
4344 EVP_MD_CTX_init(&md); /* new function call */
4345 EVP_DigestInit(&md, EVP_sha1());
4346 EVP_DigestUpdate(&md, in, len);
4347 EVP_DigestFinal(&md, out, NULL);
4348 EVP_MD_CTX_cleanup(&md); /* new function call */
4352 *) Make DES key schedule conform to the usual scheme, as well as
4353 correcting its structure. This means that calls to DES functions
4354 now have to pass a pointer to a des_key_schedule instead of a
4355 plain des_key_schedule (which was actually always a pointer
4358 des_key_schedule ks;
4360 des_set_key_checked(..., &ks);
4361 des_ncbc_encrypt(..., &ks, ...);
4363 (Note that a later change renames 'des_...' into 'DES_...'.)
4366 *) Initial reduction of linker bloat: the use of some functions, such as
4367 PEM causes large amounts of unused functions to be linked in due to
4368 poor organisation. For example pem_all.c contains every PEM function
4369 which has a knock on effect of linking in large amounts of (unused)
4370 ASN1 code. Grouping together similar functions and splitting unrelated
4371 functions prevents this.
4374 *) Cleanup of EVP macros.
4377 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4378 correct _ecb suffix.
4381 *) Add initial OCSP responder support to ocsp application. The
4382 revocation information is handled using the text based index
4383 use by the ca application. The responder can either handle
4384 requests generated internally, supplied in files (for example
4385 via a CGI script) or using an internal minimal server.
4388 *) Add configuration choices to get zlib compression for TLS.
4391 *) Changes to Kerberos SSL for RFC 2712 compliance:
4392 1. Implemented real KerberosWrapper, instead of just using
4393 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4394 2. Implemented optional authenticator field of KerberosWrapper.
4396 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4397 and authenticator structs; see crypto/krb5/.
4399 Generalized Kerberos calls to support multiple Kerberos libraries.
4400 [Vern Staats <staatsvr@asc.hpc.mil>,
4401 Jeffrey Altman <jaltman@columbia.edu>
4402 via Richard Levitte]
4404 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4405 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4406 values for each of the key sizes rather than having just
4407 parameters (and 'speed' generating keys each time).
4410 *) Speed up EVP routines.
4413 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4414 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4415 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4416 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4418 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4419 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4420 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4423 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4425 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4428 *) Added the OS2-EMX target.
4429 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4431 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4432 to support NCONF routines in extension code. New function CONF_set_nconf()
4433 to allow functions which take an NCONF to also handle the old LHASH
4434 structure: this means that the old CONF compatible routines can be
4435 retained (in particular wrt extensions) without having to duplicate the
4436 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4439 *) Enhance the general user interface with mechanisms for inner control
4440 and with possibilities to have yes/no kind of prompts.
4443 *) Change all calls to low level digest routines in the library and
4444 applications to use EVP. Add missing calls to HMAC_cleanup() and
4445 don't assume HMAC_CTX can be copied using memcpy().
4446 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4448 *) Add the possibility to control engines through control names but with
4449 arbitrary arguments instead of just a string.
4450 Change the key loaders to take a UI_METHOD instead of a callback
4451 function pointer. NOTE: this breaks binary compatibility with earlier
4452 versions of OpenSSL [engine].
4453 Adapt the nCipher code for these new conditions and add a card insertion
4457 *) Enhance the general user interface with mechanisms to better support
4458 dialog box interfaces, application-defined prompts, the possibility
4459 to use defaults (for example default passwords from somewhere else)
4460 and interrupts/cancellations.
4463 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4464 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4467 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4468 tidy up some unnecessarily weird code in 'sk_new()').
4469 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4471 *) Change the key loading routines for ENGINEs to use the same kind
4472 callback (pem_password_cb) as all other routines that need this
4476 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4477 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4478 than this minimum value is recommended.
4481 *) New random seeder for OpenVMS, using the system process statistics
4482 that are easily reachable.
4485 *) Windows apparently can't transparently handle global
4486 variables defined in DLLs. Initialisations such as:
4488 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4490 wont compile. This is used by the any applications that need to
4491 declare their own ASN1 modules. This was fixed by adding the option
4492 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4493 needed for static libraries under Win32.
4496 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4497 setting of purpose and trust fields. New X509_STORE trust and
4498 purpose functions and tidy up setting in other SSL functions.
4501 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4502 structure. These are inherited by X509_STORE_CTX when it is
4503 initialised. This allows various defaults to be set in the
4504 X509_STORE structure (such as flags for CRL checking and custom
4505 purpose or trust settings) for functions which only use X509_STORE_CTX
4506 internally such as S/MIME.
4508 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4509 trust settings if they are not set in X509_STORE. This allows X509_STORE
4510 purposes and trust (in S/MIME for example) to override any set by default.
4512 Add command line options for CRL checking to smime, s_client and s_server
4516 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4517 are set then the CRL is looked up in the X509_STORE structure and
4518 its validity and signature checked, then if the certificate is found
4519 in the CRL the verify fails with a revoked error.
4521 Various new CRL related callbacks added to X509_STORE_CTX structure.
4523 Command line options added to 'verify' application to support this.
4525 This needs some additional work, such as being able to handle multiple
4526 CRLs with different times, extension based lookup (rather than just
4527 by subject name) and ultimately more complete V2 CRL extension
4531 *) Add a general user interface API (crypto/ui/). This is designed
4532 to replace things like des_read_password and friends (backward
4533 compatibility functions using this new API are provided).
4534 The purpose is to remove prompting functions from the DES code
4535 section as well as provide for prompting through dialog boxes in
4536 a window system and the like.
4539 *) Add "ex_data" support to ENGINE so implementations can add state at a
4540 per-structure level rather than having to store it globally.
4543 *) Make it possible for ENGINE structures to be copied when retrieved by
4544 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4545 This causes the "original" ENGINE structure to act like a template,
4546 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4547 operational state can be localised to each ENGINE structure, despite the
4548 fact they all share the same "methods". New ENGINE structures returned in
4549 this case have no functional references and the return value is the single
4550 structural reference. This matches the single structural reference returned
4551 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4555 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4556 needs to match any other type at all we need to manually clear the
4560 *) Changes to the "openssl engine" utility to include;
4561 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4562 about an ENGINE's available control commands.
4563 - executing control commands from command line arguments using the
4564 '-pre' and '-post' switches. '-post' is only used if '-t' is
4565 specified and the ENGINE is successfully initialised. The syntax for
4566 the individual commands are colon-separated, for example;
4567 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4570 *) New dynamic control command support for ENGINEs. ENGINEs can now
4571 declare their own commands (numbers), names (strings), descriptions,
4572 and input types for run-time discovery by calling applications. A
4573 subset of these commands are implicitly classed as "executable"
4574 depending on their input type, and only these can be invoked through
4575 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4576 can be based on user input, config files, etc). The distinction is
4577 that "executable" commands cannot return anything other than a boolean
4578 result and can only support numeric or string input, whereas some
4579 discoverable commands may only be for direct use through
4580 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4581 pointers, or other custom uses. The "executable" commands are to
4582 support parameterisations of ENGINE behaviour that can be
4583 unambiguously defined by ENGINEs and used consistently across any
4584 OpenSSL-based application. Commands have been added to all the
4585 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4586 control over shared-library paths without source code alterations.
4589 *) Changed all ENGINE implementations to dynamically allocate their
4590 ENGINEs rather than declaring them statically. Apart from this being
4591 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4592 this also allows the implementations to compile without using the
4593 internal engine_int.h header.
4596 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4597 'const' value. Any code that should be able to modify a RAND_METHOD
4598 should already have non-const pointers to it (ie. they should only
4599 modify their own ones).
4602 *) Made a variety of little tweaks to the ENGINE code.
4603 - "atalla" and "ubsec" string definitions were moved from header files
4604 to C code. "nuron" string definitions were placed in variables
4605 rather than hard-coded - allowing parameterisation of these values
4606 later on via ctrl() commands.
4607 - Removed unused "#if 0"'d code.
4608 - Fixed engine list iteration code so it uses ENGINE_free() to release
4609 structural references.
4610 - Constified the RAND_METHOD element of ENGINE structures.
4611 - Constified various get/set functions as appropriate and added
4612 missing functions (including a catch-all ENGINE_cpy that duplicates
4613 all ENGINE values onto a new ENGINE except reference counts/state).
4614 - Removed NULL parameter checks in get/set functions. Setting a method
4615 or function to NULL is a way of cancelling out a previously set
4616 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4617 and doesn't justify the extra error symbols and code.
4618 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4619 flags from engine_int.h to engine.h.
4620 - Changed prototypes for ENGINE handler functions (init(), finish(),
4621 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4624 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4625 to the algorithm using long division. The binary algorithm can be
4626 used only if the modulus is odd. On 32-bit systems, it is faster
4627 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4628 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4629 up to 450 bits. In 64-bit environments, the binary algorithm
4630 appears to be advantageous for much longer moduli; here we use it
4631 for moduli up to 2048 bits.
4634 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4635 could not support the combine flag in choice fields.
4638 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4639 extensions from a certificate request to the certificate.
4642 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4643 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4644 file: this allows the display of the certificate about to be
4645 signed to be customised, to allow certain fields to be included
4646 or excluded and extension details. The old system didn't display
4647 multicharacter strings properly, omitted fields not in the policy
4648 and couldn't display additional details such as extensions.
4651 *) Function EC_POINTs_mul for multiple scalar multiplication
4652 of an arbitrary number of elliptic curve points
4653 \sum scalars[i]*points[i],
4654 optionally including the generator defined for the EC_GROUP:
4655 scalar*generator + \sum scalars[i]*points[i].
4657 EC_POINT_mul is a simple wrapper function for the typical case
4658 that the point list has just one item (besides the optional
4662 *) First EC_METHODs for curves over GF(p):
4664 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4665 operations and provides various method functions that can also
4666 operate with faster implementations of modular arithmetic.
4668 EC_GFp_mont_method() reuses most functions that are part of
4669 EC_GFp_simple_method, but uses Montgomery arithmetic.
4671 [Bodo Moeller; point addition and point doubling
4672 implementation directly derived from source code provided by
4673 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4675 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4676 crypto/ec/ec_lib.c):
4678 Curves are EC_GROUP objects (with an optional group generator)
4679 based on EC_METHODs that are built into the library.
4681 Points are EC_POINT objects based on EC_GROUP objects.
4683 Most of the framework would be able to handle curves over arbitrary
4684 finite fields, but as there are no obvious types for fields other
4685 than GF(p), some functions are limited to that for now.
4688 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4689 that the file contains a complete HTTP response.
4692 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4693 change the def and num file printf format specifier from "%-40sXXX"
4694 to "%-39s XXX". The latter will always guarantee a space after the
4695 field while the former will cause them to run together if the field
4696 is 40 of more characters long.
4699 *) Constify the cipher and digest 'method' functions and structures
4700 and modify related functions to take constant EVP_MD and EVP_CIPHER
4704 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4705 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4708 *) Modify EVP_Digest*() routines so they now return values. Although the
4709 internal software routines can never fail additional hardware versions
4713 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4715 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4716 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4719 ERR_R_NESTED_ASN1_ERROR
4721 ERR_R_MISSING_ASN1_EOS
4722 were 4 .. 9, conflicting with
4723 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4725 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4726 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4728 Add new error code 'ERR_R_INTERNAL_ERROR'.
4731 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4735 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4736 sets the subject name for a new request or supersedes the
4737 subject name in a given request. Formats that can be parsed are
4738 'CN=Some Name, OU=myOU, C=IT'
4740 'CN=Some Name/OU=myOU/C=IT'.
4742 Add options '-batch' and '-verbose' to 'openssl req'.
4743 [Massimiliano Pala <madwolf@hackmasters.net>]
4745 *) Introduce the possibility to access global variables through
4746 functions on platform were that's the best way to handle exporting
4747 global variables in shared libraries. To enable this functionality,
4748 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4749 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4750 is normally done by Configure or something similar).
4752 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4753 in the source file (foo.c) like this:
4755 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4756 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4758 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4759 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4761 OPENSSL_DECLARE_GLOBAL(int,foo);
4762 #define foo OPENSSL_GLOBAL_REF(foo)
4763 OPENSSL_DECLARE_GLOBAL(double,bar);
4764 #define bar OPENSSL_GLOBAL_REF(bar)
4766 The #defines are very important, and therefore so is including the
4767 header file everywhere where the defined globals are used.
4769 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4770 of ASN.1 items, but that structure is a bit different.
4772 The largest change is in util/mkdef.pl which has been enhanced with
4773 better and easier to understand logic to choose which symbols should
4774 go into the Windows .def files as well as a number of fixes and code
4775 cleanup (among others, algorithm keywords are now sorted
4776 lexicographically to avoid constant rewrites).
4779 *) In BN_div() keep a copy of the sign of 'num' before writing the
4780 result to 'rm' because if rm==num the value will be overwritten
4781 and produce the wrong result if 'num' is negative: this caused
4782 problems with BN_mod() and BN_nnmod().
4785 *) Function OCSP_request_verify(). This checks the signature on an
4786 OCSP request and verifies the signer certificate. The signer
4787 certificate is just checked for a generic purpose and OCSP request
4791 *) Add OCSP_check_validity() function to check the validity of OCSP
4792 responses. OCSP responses are prepared in real time and may only
4793 be a few seconds old. Simply checking that the current time lies
4794 between thisUpdate and nextUpdate max reject otherwise valid responses
4795 caused by either OCSP responder or client clock inaccuracy. Instead
4796 we allow thisUpdate and nextUpdate to fall within a certain period of
4797 the current time. The age of the response can also optionally be
4798 checked. Two new options -validity_period and -status_age added to
4802 *) If signature or public key algorithm is unrecognized print out its
4803 OID rather that just UNKNOWN.
4806 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4807 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4808 ID to be generated from the issuer certificate alone which can then be
4809 passed to OCSP_id_issuer_cmp().
4812 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4813 ASN1 modules to export functions returning ASN1_ITEM pointers
4814 instead of the ASN1_ITEM structures themselves. This adds several
4815 new macros which allow the underlying ASN1 function/structure to
4816 be accessed transparently. As a result code should not use ASN1_ITEM
4817 references directly (such as &X509_it) but instead use the relevant
4818 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4819 use of the new ASN1 code on platforms where exporting structures
4820 is problematical (for example in shared libraries) but exporting
4821 functions returning pointers to structures is not.
4824 *) Add support for overriding the generation of SSL/TLS session IDs.
4825 These callbacks can be registered either in an SSL_CTX or per SSL.
4826 The purpose of this is to allow applications to control, if they wish,
4827 the arbitrary values chosen for use as session IDs, particularly as it
4828 can be useful for session caching in multiple-server environments. A
4829 command-line switch for testing this (and any client code that wishes
4830 to use such a feature) has been added to "s_server".
4831 [Geoff Thorpe, Lutz Jaenicke]
4833 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4834 of the form '#if defined(...) || defined(...) || ...' and
4835 '#if !defined(...) && !defined(...) && ...'. This also avoids
4836 the growing number of special cases it was previously handling.
4839 *) Make all configuration macros available for application by making
4840 sure they are available in opensslconf.h, by giving them names starting
4841 with "OPENSSL_" to avoid conflicts with other packages and by making
4842 sure e_os2.h will cover all platform-specific cases together with
4844 Additionally, it is now possible to define configuration/platform-
4845 specific names (called "system identities"). In the C code, these
4846 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4847 macro with the name beginning with "OPENSSL_SYS_", which is determined
4848 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4852 *) New option -set_serial to 'req' and 'x509' this allows the serial
4853 number to use to be specified on the command line. Previously self
4854 signed certificates were hard coded with serial number 0 and the
4855 CA options of 'x509' had to use a serial number in a file which was
4859 *) New options to 'ca' utility to support V2 CRL entry extensions.
4860 Currently CRL reason, invalidity date and hold instruction are
4861 supported. Add new CRL extensions to V3 code and some new objects.
4864 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4865 disable standard block padding (aka PKCS#5 padding) in the EVP
4866 API, which was previously mandatory. This means that the data is
4867 not padded in any way and so the total length much be a multiple
4868 of the block size, otherwise an error occurs.
4871 *) Initial (incomplete) OCSP SSL support.
4874 *) New function OCSP_parse_url(). This splits up a URL into its host,
4875 port and path components: primarily to parse OCSP URLs. New -url
4876 option to ocsp utility.
4879 *) New nonce behavior. The return value of OCSP_check_nonce() now
4880 reflects the various checks performed. Applications can decide
4881 whether to tolerate certain situations such as an absent nonce
4882 in a response when one was present in a request: the ocsp application
4883 just prints out a warning. New function OCSP_add1_basic_nonce()
4884 this is to allow responders to include a nonce in a response even if
4885 the request is nonce-less.
4888 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4889 skipped when using openssl x509 multiple times on a single input file,
4890 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4893 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4894 set string type: to handle setting ASN1_TIME structures. Fix ca
4895 utility to correctly initialize revocation date of CRLs.
4898 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4899 the clients preferred ciphersuites and rather use its own preferences.
4900 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4901 Internet Explorer by ensuring unchanged hash method during stepup.
4902 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4905 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4906 to aes and add a new 'exist' option to print out symbols that don't
4910 *) Additional options to ocsp utility to allow flags to be set and
4911 additional certificates supplied.
4914 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4915 OCSP client a number of certificate to only verify the response
4919 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4920 handle the new API. Currently only ECB, CBC modes supported. Add new
4923 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4924 Encryption Standard (AES) Ciphersuites for Transport Layer
4925 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4926 not enabled by default and were not part of the "ALL" ciphersuite
4927 alias because they were not yet official; they could be
4928 explicitly requested by specifying the "AESdraft" ciphersuite
4929 group alias. In the final release of OpenSSL 0.9.7, the group
4930 alias is called "AES" and is part of "ALL".)
4931 [Ben Laurie, Steve Henson, Bodo Moeller]
4933 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4934 request to response.
4937 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4938 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4939 extract information from a certificate request. OCSP_response_create()
4940 creates a response and optionally adds a basic response structure.
4941 OCSP_basic_add1_status() adds a complete single response to a basic
4942 response and returns the OCSP_SINGLERESP structure just added (to allow
4943 extensions to be included for example). OCSP_basic_add1_cert() adds a
4944 certificate to a basic response and OCSP_basic_sign() signs a basic
4945 response with various flags. New helper functions ASN1_TIME_check()
4946 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4947 (converts ASN1_TIME to GeneralizedTime).
4950 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4951 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4952 structure from a certificate. X509_pubkey_digest() digests the public_key
4953 contents: this is used in various key identifiers.
4956 *) Make sk_sort() tolerate a NULL argument.
4957 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4959 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4960 passed by the function are trusted implicitly. If any of them signed the
4961 response then it is assumed to be valid and is not verified.
4964 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4965 to data. This was previously part of the PKCS7 ASN1 code. This
4966 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4967 [Steve Henson, reported by Kenneth R. Robinette
4968 <support@securenetterm.com>]
4970 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4971 routines: without these tracing memory leaks is very painful.
4972 Fix leaks in PKCS12 and PKCS7 routines.
4975 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4976 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4977 effectively meant GeneralizedTime would never be used. Now it
4978 is initialised to -1 but X509_time_adj() now has to check the value
4979 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4980 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4981 [Steve Henson, reported by Kenneth R. Robinette
4982 <support@securenetterm.com>]
4984 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4985 result in a zero length in the ASN1_INTEGER structure which was
4986 not consistent with the structure when d2i_ASN1_INTEGER() was used
4987 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
4988 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
4989 where it did not print out a minus for negative ASN1_INTEGER.
4992 *) Add summary printout to ocsp utility. The various functions which
4993 convert status values to strings have been renamed to:
4994 OCSP_response_status_str(), OCSP_cert_status_str() and
4995 OCSP_crl_reason_str() and are no longer static. New options
4996 to verify nonce values and to disable verification. OCSP response
4997 printout format cleaned up.
5000 *) Add additional OCSP certificate checks. These are those specified
5001 in RFC2560. This consists of two separate checks: the CA of the
5002 certificate being checked must either be the OCSP signer certificate
5003 or the issuer of the OCSP signer certificate. In the latter case the
5004 OCSP signer certificate must contain the OCSP signing extended key
5005 usage. This check is performed by attempting to match the OCSP
5006 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
5007 in the OCSP_CERTID structures of the response.
5010 *) Initial OCSP certificate verification added to OCSP_basic_verify()
5011 and related routines. This uses the standard OpenSSL certificate
5012 verify routines to perform initial checks (just CA validity) and
5013 to obtain the certificate chain. Then additional checks will be
5014 performed on the chain. Currently the root CA is checked to see
5015 if it is explicitly trusted for OCSP signing. This is used to set
5016 a root CA as a global signing root: that is any certificate that
5017 chains to that CA is an acceptable OCSP signing certificate.
5020 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
5021 extensions from a separate configuration file.
5022 As when reading extensions from the main configuration file,
5023 the '-extensions ...' option may be used for specifying the
5025 [Massimiliano Pala <madwolf@comune.modena.it>]
5027 *) New OCSP utility. Allows OCSP requests to be generated or
5028 read. The request can be sent to a responder and the output
5029 parsed, outputed or printed in text form. Not complete yet:
5030 still needs to check the OCSP response validity.
5033 *) New subcommands for 'openssl ca':
5034 'openssl ca -status <serial>' prints the status of the cert with
5035 the given serial number (according to the index file).
5036 'openssl ca -updatedb' updates the expiry status of certificates
5038 [Massimiliano Pala <madwolf@comune.modena.it>]
5040 *) New '-newreq-nodes' command option to CA.pl. This is like
5041 '-newreq', but calls 'openssl req' with the '-nodes' option
5042 so that the resulting key is not encrypted.
5043 [Damien Miller <djm@mindrot.org>]
5045 *) New configuration for the GNU Hurd.
5046 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
5048 *) Initial code to implement OCSP basic response verify. This
5049 is currently incomplete. Currently just finds the signer's
5050 certificate and verifies the signature on the response.
5053 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
5054 value of OPENSSLDIR. This is available via the new '-d' option
5055 to 'openssl version', and is also included in 'openssl version -a'.
5058 *) Allowing defining memory allocation callbacks that will be given
5059 file name and line number information in additional arguments
5060 (a const char* and an int). The basic functionality remains, as
5061 well as the original possibility to just replace malloc(),
5062 realloc() and free() by functions that do not know about these
5063 additional arguments. To register and find out the current
5064 settings for extended allocation functions, the following
5065 functions are provided:
5067 CRYPTO_set_mem_ex_functions
5068 CRYPTO_set_locked_mem_ex_functions
5069 CRYPTO_get_mem_ex_functions
5070 CRYPTO_get_locked_mem_ex_functions
5072 These work the same way as CRYPTO_set_mem_functions and friends.
5073 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
5074 extended allocation function is enabled.
5075 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
5076 a conventional allocation function is enabled.
5077 [Richard Levitte, Bodo Moeller]
5079 *) Finish off removing the remaining LHASH function pointer casts.
5080 There should no longer be any prototype-casting required when using
5081 the LHASH abstraction, and any casts that remain are "bugs". See
5082 the callback types and macros at the head of lhash.h for details
5083 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
5086 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
5087 If /dev/[u]random devices are not available or do not return enough
5088 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
5090 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
5091 /etc/entropy will be queried once each in this sequence, quering stops
5092 when enough entropy was collected without querying more sockets.
5095 *) Change the Unix RAND_poll() variant to be able to poll several
5096 random devices, as specified by DEVRANDOM, until a sufficient amount
5097 of data has been collected. We spend at most 10 ms on each file
5098 (select timeout) and read in non-blocking mode. DEVRANDOM now
5099 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
5100 (previously it was just the string "/dev/urandom"), so on typical
5101 platforms the 10 ms delay will never occur.
5102 Also separate out the Unix variant to its own file, rand_unix.c.
5103 For VMS, there's a currently-empty rand_vms.c.
5106 *) Move OCSP client related routines to ocsp_cl.c. These
5107 provide utility functions which an application needing
5108 to issue a request to an OCSP responder and analyse the
5109 response will typically need: as opposed to those which an
5110 OCSP responder itself would need which will be added later.
5112 OCSP_request_sign() signs an OCSP request with an API similar
5113 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
5114 response. OCSP_response_get1_basic() extracts basic response
5115 from response. OCSP_resp_find_status(): finds and extracts status
5116 information from an OCSP_CERTID structure (which will be created
5117 when the request structure is built). These are built from lower
5118 level functions which work on OCSP_SINGLERESP structures but
5119 wont normally be used unless the application wishes to examine
5120 extensions in the OCSP response for example.
5122 Replace nonce routines with a pair of functions.
5123 OCSP_request_add1_nonce() adds a nonce value and optionally
5124 generates a random value. OCSP_check_nonce() checks the
5125 validity of the nonce in an OCSP response.
5128 *) Change function OCSP_request_add() to OCSP_request_add0_id().
5129 This doesn't copy the supplied OCSP_CERTID and avoids the
5130 need to free up the newly created id. Change return type
5131 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
5132 This can then be used to add extensions to the request.
5133 Deleted OCSP_request_new(), since most of its functionality
5134 is now in OCSP_REQUEST_new() (and the case insensitive name
5135 clash) apart from the ability to set the request name which
5136 will be added elsewhere.
5139 *) Update OCSP API. Remove obsolete extensions argument from
5140 various functions. Extensions are now handled using the new
5141 OCSP extension code. New simple OCSP HTTP function which
5142 can be used to send requests and parse the response.
5145 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
5146 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
5147 uses the special reorder version of SET OF to sort the attributes
5148 and reorder them to match the encoded order. This resolves a long
5149 standing problem: a verify on a PKCS7 structure just after signing
5150 it used to fail because the attribute order did not match the
5151 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
5152 it uses the received order. This is necessary to tolerate some broken
5153 software that does not order SET OF. This is handled by encoding
5154 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
5155 to produce the required SET OF.
5158 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
5159 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
5160 files to get correct declarations of the ASN.1 item variables.
5163 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
5164 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
5165 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
5166 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
5167 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
5168 ASN1_ITEM and no wrapper functions.
5171 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
5172 replace the old function pointer based I/O routines. Change most of
5173 the *_d2i_bio() and *_d2i_fp() functions to use these.
5176 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
5177 lines, recognice more "algorithms" that can be deselected, and make
5178 it complain about algorithm deselection that isn't recognised.
5181 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
5182 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
5183 to use new functions. Add NO_ASN1_OLD which can be set to remove
5184 some old style ASN1 functions: this can be used to determine if old
5185 code will still work when these eventually go away.
5188 *) New extension functions for OCSP structures, these follow the
5189 same conventions as certificates and CRLs.
5192 *) New function X509V3_add1_i2d(). This automatically encodes and
5193 adds an extension. Its behaviour can be customised with various
5194 flags to append, replace or delete. Various wrappers added for
5195 certifcates and CRLs.
5198 *) Fix to avoid calling the underlying ASN1 print routine when
5199 an extension cannot be parsed. Correct a typo in the
5200 OCSP_SERVICELOC extension. Tidy up print OCSP format.
5203 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
5204 entries for variables.
5207 *) Add functionality to apps/openssl.c for detecting locking
5208 problems: As the program is single-threaded, all we have
5209 to do is register a locking callback using an array for
5210 storing which locks are currently held by the program.
5213 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
5214 SSL_get_ex_data_X509_STORE_idx(), which is used in
5215 ssl_verify_cert_chain() and thus can be called at any time
5216 during TLS/SSL handshakes so that thread-safety is essential.
5217 Unfortunately, the ex_data design is not at all suited
5218 for multi-threaded use, so it probably should be abolished.
5221 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
5222 [Broadcom, tweaked and integrated by Geoff Thorpe]
5224 *) Move common extension printing code to new function
5225 X509V3_print_extensions(). Reorganise OCSP print routines and
5226 implement some needed OCSP ASN1 functions. Add OCSP extensions.
5229 *) New function X509_signature_print() to remove duplication in some
5233 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
5234 set (this was treated exactly the same as SET OF previously). This
5235 is used to reorder the STACK representing the structure to match the
5236 encoding. This will be used to get round a problem where a PKCS7
5237 structure which was signed could not be verified because the STACK
5238 order did not reflect the encoded order.
5241 *) Reimplement the OCSP ASN1 module using the new code.
5244 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
5245 for its ASN1 operations. The old style function pointers still exist
5246 for now but they will eventually go away.
5249 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
5250 completely replaces the old ASN1 functionality with a table driven
5251 encoder and decoder which interprets an ASN1_ITEM structure describing
5252 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5253 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5254 has also been converted to the new form.
5257 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5258 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5259 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5260 for negative moduli.
5263 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5264 of not touching the result's sign bit.
5267 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5271 *) Changed the LHASH code to use prototypes for callbacks, and created
5272 macros to declare and implement thin (optionally static) functions
5273 that provide type-safety and avoid function pointer casting for the
5274 type-specific callbacks.
5277 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5279 [Veers Staats <staatsvr@asc.hpc.mil>,
5280 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5282 *) Reformat the FAQ so the different questions and answers can be divided
5283 in sections depending on the subject.
5286 *) Have the zlib compression code load ZLIB.DLL dynamically under
5290 *) New function BN_mod_sqrt for computing square roots modulo a prime
5291 (using the probabilistic Tonelli-Shanks algorithm unless
5292 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5293 be handled deterministically).
5294 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5296 *) Make BN_mod_inverse faster by explicitly handling small quotients
5297 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5298 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5301 *) New function BN_kronecker.
5304 *) Fix BN_gcd so that it works on negative inputs; the result is
5305 positive unless both parameters are zero.
5306 Previously something reasonably close to an infinite loop was
5307 possible because numbers could be growing instead of shrinking
5308 in the implementation of Euclid's algorithm.
5311 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5312 sign of the number in question.
5314 Fix BN_is_word(a,w) to work correctly for w == 0.
5316 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5317 because its test if the absolute value of 'a' equals 'w'.
5318 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5319 it exists mostly for use in the implementations of BN_is_zero(),
5320 BN_is_one(), and BN_is_word().
5323 *) New function BN_swap.
5326 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5327 the exponentiation functions are more likely to produce reasonable
5328 results on negative inputs.
5331 *) Change BN_mod_mul so that the result is always non-negative.
5332 Previously, it could be negative if one of the factors was negative;
5333 I don't think anyone really wanted that behaviour.
5336 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5337 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5338 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5339 and add new functions:
5348 BN_mod_lshift1_quick
5352 These functions always generate non-negative results.
5354 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5355 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5357 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5358 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5359 be reduced modulo m.
5360 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5363 The following entry accidentily appeared in the CHANGES file
5364 distributed with OpenSSL 0.9.7. The modifications described in
5365 it do *not* apply to OpenSSL 0.9.7.
5367 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5368 was actually never needed) and in BN_mul(). The removal in BN_mul()
5369 required a small change in bn_mul_part_recursive() and the addition
5370 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5371 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5372 bn_sub_words() and bn_add_words() except they take arrays with
5377 *) In 'openssl passwd', verify passwords read from the terminal
5378 unless the '-salt' option is used (which usually means that
5379 verification would just waste user's time since the resulting
5380 hash is going to be compared with some given password hash)
5381 or the new '-noverify' option is used.
5383 This is an incompatible change, but it does not affect
5384 non-interactive use of 'openssl passwd' (passwords on the command
5385 line, '-stdin' option, '-in ...' option) and thus should not
5389 *) Remove all references to RSAref, since there's no more need for it.
5392 *) Make DSO load along a path given through an environment variable
5393 (SHLIB_PATH) with shl_load().
5396 *) Constify the ENGINE code as a result of BIGNUM constification.
5397 Also constify the RSA code and most things related to it. In a
5398 few places, most notable in the depth of the ASN.1 code, ugly
5399 casts back to non-const were required (to be solved at a later
5403 *) Make it so the openssl application has all engines loaded by default.
5406 *) Constify the BIGNUM routines a little more.
5409 *) Add the following functions:
5411 ENGINE_load_cswift()
5413 ENGINE_load_atalla()
5415 ENGINE_load_builtin_engines()
5417 That way, an application can itself choose if external engines that
5418 are built-in in OpenSSL shall ever be used or not. The benefit is
5419 that applications won't have to be linked with libdl or other dso
5420 libraries unless it's really needed.
5422 Changed 'openssl engine' to load all engines on demand.
5423 Changed the engine header files to avoid the duplication of some
5424 declarations (they differed!).
5427 *) 'openssl engine' can now list capabilities.
5430 *) Better error reporting in 'openssl engine'.
5433 *) Never call load_dh_param(NULL) in s_server.
5436 *) Add engine application. It can currently list engines by name and
5437 identity, and test if they are actually available.
5440 *) Improve RPM specification file by forcing symbolic linking and making
5441 sure the installed documentation is also owned by root.root.
5442 [Damien Miller <djm@mindrot.org>]
5444 *) Give the OpenSSL applications more possibilities to make use of
5445 keys (public as well as private) handled by engines.
5448 *) Add OCSP code that comes from CertCo.
5451 *) Add VMS support for the Rijndael code.
5454 *) Added untested support for Nuron crypto accelerator.
5457 *) Add support for external cryptographic devices. This code was
5458 previously distributed separately as the "engine" branch.
5459 [Geoff Thorpe, Richard Levitte]
5461 *) Rework the filename-translation in the DSO code. It is now possible to
5462 have far greater control over how a "name" is turned into a filename
5463 depending on the operating environment and any oddities about the
5464 different shared library filenames on each system.
5467 *) Support threads on FreeBSD-elf in Configure.
5470 *) Fix for SHA1 assembly problem with MASM: it produces
5471 warnings about corrupt line number information when assembling
5472 with debugging information. This is caused by the overlapping
5474 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5477 NCONF_get_number() has no error checking at all. As a replacement,
5478 NCONF_get_number_e() is defined (_e for "error checking") and is
5479 promoted strongly. The old NCONF_get_number is kept around for
5480 binary backward compatibility.
5481 Make it possible for methods to load from something other than a BIO,
5482 by providing a function pointer that is given a name instead of a BIO.
5483 For example, this could be used to load configuration data from an
5487 *) Fix for non blocking accept BIOs. Added new I/O special reason
5488 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5489 with non blocking I/O was not possible because no retry code was
5490 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5494 *) Added the beginnings of Rijndael support.
5497 *) Fix for bug in DirectoryString mask setting. Add support for
5498 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5499 to allow certificate printing to more controllable, additional
5500 'certopt' option to 'x509' to allow new printing options to be
5504 *) Clean old EAY MD5 hack from e_os.h.
5507 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5509 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5510 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5511 [Joe Orton, Steve Henson]
5513 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5515 *) Fix additional bug revealed by the NISCC test suite:
5517 Stop bug triggering large recursion when presented with
5518 certain ASN.1 tags (CVE-2003-0851)
5521 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5523 *) Fix various bugs revealed by running the NISCC test suite:
5525 Stop out of bounds reads in the ASN1 code when presented with
5526 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5528 If verify callback ignores invalid public key errors don't try to check
5529 certificate signature with the NULL public key.
5533 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5534 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5538 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5539 extra data after the compression methods not only for TLS 1.0
5540 but also for SSL 3.0 (as required by the specification).
5541 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5543 *) Change X509_certificate_type() to mark the key as exported/exportable
5544 when it's 512 *bits* long, not 512 bytes.
5547 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5549 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5550 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5551 a protocol version number mismatch like a decryption error
5552 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5555 *) Turn on RSA blinding by default in the default implementation
5556 to avoid a timing attack. Applications that don't want it can call
5557 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5558 They would be ill-advised to do so in most cases.
5559 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5561 *) Change RSA blinding code so that it works when the PRNG is not
5562 seeded (in this case, the secret RSA exponent is abused as
5563 an unpredictable seed -- if it is not unpredictable, there
5564 is no point in blinding anyway). Make RSA blinding thread-safe
5565 by remembering the creator's thread ID in rsa->blinding and
5566 having all other threads use local one-time blinding factors
5567 (this requires more computation than sharing rsa->blinding, but
5568 avoids excessive locking; and if an RSA object is not shared
5569 between threads, blinding will still be very fast).
5572 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5574 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5575 via timing by performing a MAC computation even if incorrrect
5576 block cipher padding has been found. This is a countermeasure
5577 against active attacks where the attacker has to distinguish
5578 between bad padding and a MAC verification error. (CVE-2003-0078)
5580 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5581 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5582 Martin Vuagnoux (EPFL, Ilion)]
5584 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5586 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5587 memory from it's contents. This is done with a counter that will
5588 place alternating values in each byte. This can be used to solve
5589 two issues: 1) the removal of calls to memset() by highly optimizing
5590 compilers, and 2) cleansing with other values than 0, since those can
5591 be read through on certain media, for example a swap space on disk.
5594 *) Bugfix: client side session caching did not work with external caching,
5595 because the session->cipher setting was not restored when reloading
5596 from the external cache. This problem was masked, when
5597 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5598 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5601 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5602 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5603 [Zeev Lieber <zeev-l@yahoo.com>]
5605 *) Undo an undocumented change introduced in 0.9.6e which caused
5606 repeated calls to OpenSSL_add_all_ciphers() and
5607 OpenSSL_add_all_digests() to be ignored, even after calling
5611 *) Change the default configuration reader to deal with last line not
5612 being properly terminated.
5615 *) Change X509_NAME_cmp() so it applies the special rules on handling
5616 DN values that are of type PrintableString, as well as RDNs of type
5617 emailAddress where the value has the type ia5String.
5618 [stefank@valicert.com via Richard Levitte]
5620 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5621 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5622 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5623 the bitwise-OR of the two for use by the majority of applications
5624 wanting this behaviour, and update the docs. The documented
5625 behaviour and actual behaviour were inconsistent and had been
5626 changing anyway, so this is more a bug-fix than a behavioural
5628 [Geoff Thorpe, diagnosed by Nadav Har'El]
5630 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5631 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5634 *) Fix initialization code race conditions in
5635 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5636 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5637 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5638 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5639 ssl2_get_cipher_by_char(),
5640 ssl3_get_cipher_by_char().
5641 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5643 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5644 the cached sessions are flushed, as the remove_cb() might use ex_data
5645 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5646 (see [openssl.org #212]).
5647 [Geoff Thorpe, Lutz Jaenicke]
5649 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5650 length, instead of the encoding length to d2i_ASN1_OBJECT.
5653 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5655 *) [In 0.9.6g-engine release:]
5656 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5657 [Lynn Gazis <lgazis@rainbow.com>]
5659 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5661 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5662 and get fix the header length calculation.
5663 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5664 Alon Kantor <alonk@checkpoint.com> (and others),
5667 *) Use proper error handling instead of 'assertions' in buffer
5668 overflow checks added in 0.9.6e. This prevents DoS (the
5669 assertions could call abort()).
5670 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5672 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5674 *) Add various sanity checks to asn1_get_length() to reject
5675 the ASN1 length bytes if they exceed sizeof(long), will appear
5676 negative or the content length exceeds the length of the
5678 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5680 *) Fix cipher selection routines: ciphers without encryption had no flags
5681 for the cipher strength set and where therefore not handled correctly
5682 by the selection routines (PR #130).
5685 *) Fix EVP_dsa_sha macro.
5689 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5690 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5691 that was added in OpenSSL 0.9.6d.
5693 As the countermeasure turned out to be incompatible with some
5694 broken SSL implementations, the new option is part of SSL_OP_ALL.
5695 SSL_OP_ALL is usually employed when compatibility with weird SSL
5696 implementations is desired (e.g. '-bugs' option to 's_client' and
5697 's_server'), so the new option is automatically set in many
5701 *) Changes in security patch:
5703 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5704 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5705 Air Force Materiel Command, USAF, under agreement number
5708 *) Add various sanity checks to asn1_get_length() to reject
5709 the ASN1 length bytes if they exceed sizeof(long), will appear
5710 negative or the content length exceeds the length of the
5711 supplied buffer. (CVE-2002-0659)
5712 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5714 *) Assertions for various potential buffer overflows, not known to
5716 [Ben Laurie (CHATS)]
5718 *) Various temporary buffers to hold ASCII versions of integers were
5719 too small for 64 bit platforms. (CVE-2002-0655)
5720 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5722 *) Remote buffer overflow in SSL3 protocol - an attacker could
5723 supply an oversized session ID to a client. (CVE-2002-0656)
5724 [Ben Laurie (CHATS)]
5726 *) Remote buffer overflow in SSL2 protocol - an attacker could
5727 supply an oversized client master key. (CVE-2002-0656)
5728 [Ben Laurie (CHATS)]
5730 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5732 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5733 encoded as NULL) with id-dsa-with-sha1.
5734 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5736 *) Check various X509_...() return values in apps/req.c.
5737 [Nils Larsch <nla@trustcenter.de>]
5739 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5740 an end-of-file condition would erronously be flagged, when the CRLF
5741 was just at the end of a processed block. The bug was discovered when
5742 processing data through a buffering memory BIO handing the data to a
5743 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5744 <ptsekov@syntrex.com> and Nedelcho Stanev.
5747 *) Implement a countermeasure against a vulnerability recently found
5748 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5749 before application data chunks to avoid the use of known IVs
5750 with data potentially chosen by the attacker.
5753 *) Fix length checks in ssl3_get_client_hello().
5756 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5757 to prevent ssl3_read_internal() from incorrectly assuming that
5758 ssl3_read_bytes() found application data while handshake
5759 processing was enabled when in fact s->s3->in_read_app_data was
5760 merely automatically cleared during the initial handshake.
5761 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5763 *) Fix object definitions for Private and Enterprise: they were not
5764 recognized in their shortname (=lowercase) representation. Extend
5765 obj_dat.pl to issue an error when using undefined keywords instead
5766 of silently ignoring the problem (Svenning Sorensen
5767 <sss@sss.dnsalias.net>).
5770 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5771 generators, i.e. generators other than 2 and 5. (Previously, the
5772 code did not properly initialise the 'add' and 'rem' values to
5773 BN_generate_prime().)
5775 In the new general case, we do not insist that 'generator' is
5776 actually a primitive root: This requirement is rather pointless;
5777 a generator of the order-q subgroup is just as good, if not
5781 *) Map new X509 verification errors to alerts. Discovered and submitted by
5782 Tom Wu <tom@arcot.com>.
5785 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5786 returning non-zero before the data has been completely received
5787 when using non-blocking I/O.
5788 [Bodo Moeller; problem pointed out by John Hughes]
5790 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5791 [Ben Laurie, Lutz Jaenicke]
5793 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5794 Yoram Zahavi <YoramZ@gilian.com>).
5797 *) Add information about CygWin 1.3 and on, and preserve proper
5798 configuration for the versions before that.
5799 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5801 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5802 check whether we deal with a copy of a session and do not delete from
5803 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5804 <izhar@checkpoint.com>.
5807 *) Do not store session data into the internal session cache, if it
5808 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5809 flag is set). Proposed by Aslam <aslam@funk.com>.
5812 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5816 *) [In 0.9.6d-engine release:]
5817 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5818 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5820 *) Add the configuration target linux-s390x.
5821 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5823 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5824 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5825 variable as an indication that a ClientHello message has been
5826 received. As the flag value will be lost between multiple
5827 invocations of ssl3_accept when using non-blocking I/O, the
5828 function may not be aware that a handshake has actually taken
5829 place, thus preventing a new session from being added to the
5832 To avoid this problem, we now set s->new_session to 2 instead of
5833 using a local variable.
5834 [Lutz Jaenicke, Bodo Moeller]
5836 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5837 if the SSL_R_LENGTH_MISMATCH error is detected.
5838 [Geoff Thorpe, Bodo Moeller]
5840 *) New 'shared_ldflag' column in Configure platform table.
5843 *) Fix EVP_CIPHER_mode macro.
5844 ["Dan S. Camper" <dan@bti.net>]
5846 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5847 type, we must throw them away by setting rr->length to 0.
5848 [D P Chang <dpc@qualys.com>]
5850 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5852 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5853 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5854 worked incorrectly for those cases where range = 10..._2 and
5855 3*range is two bits longer than range.)
5858 *) Only add signing time to PKCS7 structures if it is not already
5862 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5863 OBJ_ld_ce should be OBJ_id_ce.
5864 Also some ip-pda OIDs in crypto/objects/objects.txt were
5865 incorrect (cf. RFC 3039).
5866 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5868 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5869 returns early because it has nothing to do.
5870 [Andy Schneider <andy.schneider@bjss.co.uk>]
5872 *) [In 0.9.6c-engine release:]
5873 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5874 [Andy Schneider <andy.schneider@bjss.co.uk>]
5876 *) [In 0.9.6c-engine release:]
5877 Add support for Cryptographic Appliance's keyserver technology.
5878 (Use engine 'keyclient')
5879 [Cryptographic Appliances and Geoff Thorpe]
5881 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5882 is called via tools/c89.sh because arguments have to be
5883 rearranged (all '-L' options must appear before the first object
5885 [Richard Shapiro <rshapiro@abinitio.com>]
5887 *) [In 0.9.6c-engine release:]
5888 Add support for Broadcom crypto accelerator cards, backported
5890 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5892 *) [In 0.9.6c-engine release:]
5893 Add support for SureWare crypto accelerator cards from
5894 Baltimore Technologies. (Use engine 'sureware')
5895 [Baltimore Technologies and Mark Cox]
5897 *) [In 0.9.6c-engine release:]
5898 Add support for crypto accelerator cards from Accelerated
5899 Encryption Processing, www.aep.ie. (Use engine 'aep')
5900 [AEP Inc. and Mark Cox]
5902 *) Add a configuration entry for gcc on UnixWare.
5903 [Gary Benson <gbenson@redhat.com>]
5905 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5906 messages are stored in a single piece (fixed-length part and
5907 variable-length part combined) and fix various bugs found on the way.
5910 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5911 instead. BIO_gethostbyname() does not know what timeouts are
5912 appropriate, so entries would stay in cache even when they have
5914 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5916 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5917 faced with a pathologically small ClientHello fragment that does
5918 not contain client_version: Instead of aborting with an error,
5919 simply choose the highest available protocol version (i.e.,
5920 TLS 1.0 unless it is disabled). In practice, ClientHello
5921 messages are never sent like this, but this change gives us
5922 strictly correct behaviour at least for TLS.
5925 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5926 never resets s->method to s->ctx->method when called from within
5927 one of the SSL handshake functions.
5928 [Bodo Moeller; problem pointed out by Niko Baric]
5930 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5931 (sent using the client's version number) if client_version is
5932 smaller than the protocol version in use. Also change
5933 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5934 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5935 the client will at least see that alert.
5938 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5942 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5943 client receives HelloRequest while in a handshake.
5944 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5946 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5947 should end in 'break', not 'goto end' which circuments various
5948 cleanups done in state SSL_ST_OK. But session related stuff
5949 must be disabled for SSL_ST_OK in the case that we just sent a
5952 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5953 before just sending a HelloRequest.
5954 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5956 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5957 reveal whether illegal block cipher padding was found or a MAC
5958 verification error occured. (Neither SSLerr() codes nor alerts
5959 are directly visible to potential attackers, but the information
5960 may leak via logfiles.)
5962 Similar changes are not required for the SSL 2.0 implementation
5963 because the number of padding bytes is sent in clear for SSL 2.0,
5964 and the extra bytes are just ignored. However ssl/s2_pkt.c
5965 failed to verify that the purported number of padding bytes is in
5969 *) Add OpenUNIX-8 support including shared libraries
5970 (Boyd Lynn Gerber <gerberb@zenez.com>).
5973 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5974 'wristwatch attack' using huge encoding parameters (cf.
5975 James H. Manger's CRYPTO 2001 paper). Note that the
5976 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5977 encoding parameters and hence was not vulnerable.
5980 *) BN_sqr() bug fix.
5981 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5983 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5984 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5985 followed by modular reduction.
5986 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
5988 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
5989 equivalent based on BN_pseudo_rand() instead of BN_rand().
5992 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
5993 This function was broken, as the check for a new client hello message
5994 to handle SGC did not allow these large messages.
5995 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
5998 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
6001 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
6002 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
6005 *) Rework the configuration and shared library support for Tru64 Unix.
6006 The configuration part makes use of modern compiler features and
6007 still retains old compiler behavior for those that run older versions
6008 of the OS. The shared library support part includes a variant that
6009 uses the RPATH feature, and is available through the special
6010 configuration target "alpha-cc-rpath", which will never be selected
6012 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
6014 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
6015 with the same message size as in ssl3_get_certificate_request().
6016 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
6017 messages might inadvertently be reject as too long.
6018 [Petr Lampa <lampa@fee.vutbr.cz>]
6020 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
6023 *) Modified SSL library such that the verify_callback that has been set
6024 specificly for an SSL object with SSL_set_verify() is actually being
6025 used. Before the change, a verify_callback set with this function was
6026 ignored and the verify_callback() set in the SSL_CTX at the time of
6027 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
6028 to allow the necessary settings.
6031 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
6032 explicitly to NULL, as at least on Solaris 8 this seems not always to be
6033 done automatically (in contradiction to the requirements of the C
6034 standard). This made problems when used from OpenSSH.
6037 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
6038 dh->length and always used
6040 BN_rand_range(priv_key, dh->p).
6042 BN_rand_range() is not necessary for Diffie-Hellman, and this
6043 specific range makes Diffie-Hellman unnecessarily inefficient if
6044 dh->length (recommended exponent length) is much smaller than the
6045 length of dh->p. We could use BN_rand_range() if the order of
6046 the subgroup was stored in the DH structure, but we only have
6051 BN_rand(priv_key, l, ...)
6053 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
6059 RSA_eay_public_encrypt
6060 RSA_eay_private_decrypt
6061 RSA_eay_private_encrypt (signing)
6062 RSA_eay_public_decrypt (signature verification)
6064 (default implementations for RSA_public_encrypt,
6065 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
6066 always reject numbers >= n.
6069 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
6070 to synchronize access to 'locking_thread'. This is necessary on
6071 systems where access to 'locking_thread' (an 'unsigned long'
6072 variable) is not atomic.
6075 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
6076 *before* setting the 'crypto_lock_rand' flag. The previous code had
6077 a race condition if 0 is a valid thread ID.
6078 [Travis Vitek <vitek@roguewave.com>]
6080 *) Add support for shared libraries under Irix.
6081 [Albert Chin-A-Young <china@thewrittenword.com>]
6083 *) Add configuration option to build on Linux on both big-endian and
6085 [Ralf Baechle <ralf@uni-koblenz.de>]
6087 *) Add the possibility to create shared libraries on HP-UX.
6090 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
6092 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
6093 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
6094 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
6095 PRNG state recovery was possible based on the output of
6096 one PRNG request appropriately sized to gain knowledge on
6097 'md' followed by enough consecutive 1-byte PRNG requests
6098 to traverse all of 'state'.
6100 1. When updating 'md_local' (the current thread's copy of 'md')
6101 during PRNG output generation, hash all of the previous
6102 'md_local' value, not just the half used for PRNG output.
6104 2. Make the number of bytes from 'state' included into the hash
6105 independent from the number of PRNG bytes requested.
6107 The first measure alone would be sufficient to avoid
6108 Markku-Juhani's attack. (Actually it had never occurred
6109 to me that the half of 'md_local' used for chaining was the
6110 half from which PRNG output bytes were taken -- I had always
6111 assumed that the secret half would be used.) The second
6112 measure makes sure that additional data from 'state' is never
6113 mixed into 'md_local' in small portions; this heuristically
6114 further strengthens the PRNG.
6117 *) Fix crypto/bn/asm/mips3.s.
6120 *) When only the key is given to "enc", the IV is undefined. Print out
6121 an error message in this case.
6124 *) Handle special case when X509_NAME is empty in X509 printing routines.
6127 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
6128 positive and less than q.
6131 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
6132 used: it isn't thread safe and the add_lock_callback should handle
6134 [Paul Rose <Paul.Rose@bridge.com>]
6136 *) Verify that incoming data obeys the block size in
6137 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
6141 [Ulf Möller, Bodo Möller]
6143 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
6144 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
6145 when fixing the server behaviour for backwards-compatible 'client
6146 hello' messages. (Note that the attack is impractical against
6147 SSL 3.0 and TLS 1.0 anyway because length and version checking
6148 means that the probability of guessing a valid ciphertext is
6149 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
6152 Before 0.9.5, the countermeasure (hide the error by generating a
6153 random 'decryption result') did not work properly because
6154 ERR_clear_error() was missing, meaning that SSL_get_error() would
6155 detect the supposedly ignored error.
6157 Both problems are now fixed.
6160 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
6161 (previously it was 1024).
6164 *) Fix for compatibility mode trust settings: ignore trust settings
6165 unless some valid trust or reject settings are present.
6168 *) Fix for blowfish EVP: its a variable length cipher.
6171 *) Fix various bugs related to DSA S/MIME verification. Handle missing
6172 parameters in DSA public key structures and return an error in the
6173 DSA routines if parameters are absent.
6176 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
6177 in the current directory if neither $RANDFILE nor $HOME was set.
6178 RAND_file_name() in 0.9.6a returned NULL in this case. This has
6179 caused some confusion to Windows users who haven't defined $HOME.
6180 Thus RAND_file_name() is changed again: e_os.h can define a
6181 DEFAULT_HOME, which will be used if $HOME is not set.
6182 For Windows, we use "C:"; on other platforms, we still require
6183 environment variables.
6185 *) Move 'if (!initialized) RAND_poll()' into regions protected by
6186 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
6187 having multiple threads call RAND_poll() concurrently.
6190 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
6191 combination of a flag and a thread ID variable.
6192 Otherwise while one thread is in ssleay_rand_bytes (which sets the
6193 flag), *other* threads can enter ssleay_add_bytes without obeying
6194 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
6195 that they do not hold after the first thread unsets add_do_not_lock).
6198 *) Change bctest again: '-x' expressions are not available in all
6202 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
6204 *) Fix a couple of memory leaks in PKCS7_dataDecode()
6205 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
6207 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
6208 the default extension for executables, if any. Also, make the perl
6209 scripts that use symlink() to test if it really exists and use "cp"
6210 if it doesn't. All this made OpenSSL compilable and installable in
6214 *) Fix for asn1_GetSequence() for indefinite length constructed data.
6215 If SEQUENCE is length is indefinite just set c->slen to the total
6216 amount of data available.
6217 [Steve Henson, reported by shige@FreeBSD.org]
6218 [This change does not apply to 0.9.7.]
6220 *) Change bctest to avoid here-documents inside command substitution
6221 (workaround for FreeBSD /bin/sh bug).
6222 For compatibility with Ultrix, avoid shell functions (introduced
6223 in the bctest version that searches along $PATH).
6226 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
6227 with des_encrypt() defined on some operating systems, like Solaris
6231 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
6232 On the Importance of Eliminating Errors in Cryptographic
6233 Computations, J. Cryptology 14 (2001) 2, 101-119,
6234 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
6237 *) MIPS assembler BIGNUM division bug fix.
6240 *) Disabled incorrect Alpha assembler code.
6243 *) Fix PKCS#7 decode routines so they correctly update the length
6244 after reading an EOC for the EXPLICIT tag.
6246 [This change does not apply to 0.9.7.]
6248 *) Fix bug in PKCS#12 key generation routines. This was triggered
6249 if a 3DES key was generated with a 0 initial byte. Include
6250 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6251 (but broken) behaviour.
6254 *) Enhance bctest to search for a working bc along $PATH and print
6256 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6258 *) Fix memory leaks in err.c: free err_data string if necessary;
6259 don't write to the wrong index in ERR_set_error_data.
6262 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6266 *) Replace rdtsc with _emit statements for VC++ version 5.
6267 [Jeremy Cooper <jeremy@baymoo.org>]
6269 *) Make it possible to reuse SSLv2 sessions.
6272 *) In copy_email() check for >= 0 as a return value for
6273 X509_NAME_get_index_by_NID() since 0 is a valid index.
6274 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6276 *) Avoid coredump with unsupported or invalid public keys by checking if
6277 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6278 PKCS7_verify() fails with non detached data.
6281 *) Don't use getenv in library functions when run as setuid/setgid.
6282 New function OPENSSL_issetugid().
6285 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6286 due to incorrect handling of multi-threading:
6288 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6290 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6292 3. Count how many times MemCheck_off() has been called so that
6293 nested use can be treated correctly. This also avoids
6294 inband-signalling in the previous code (which relied on the
6295 assumption that thread ID 0 is impossible).
6298 *) Add "-rand" option also to s_client and s_server.
6301 *) Fix CPU detection on Irix 6.x.
6302 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6303 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6305 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6308 [This change does not apply to 0.9.7.]
6310 *) Use the cached encoding of an X509_NAME structure rather than
6311 copying it. This is apparently the reason for the libsafe "errors"
6312 but the code is actually correct.
6315 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6316 Bleichenbacher's DSA attack.
6317 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6318 to be set and top=0 forces the highest bit to be set; top=-1 is new
6319 and leaves the highest bit random.
6320 [Ulf Moeller, Bodo Moeller]
6322 *) In the NCONF_...-based implementations for CONF_... queries
6323 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6324 a temporary CONF structure with the data component set to NULL
6325 (which gives segmentation faults in lh_retrieve).
6326 Instead, use NULL for the CONF pointer in CONF_get_string and
6327 CONF_get_number (which may use environment variables) and directly
6328 return NULL from CONF_get_section.
6331 *) Fix potential buffer overrun for EBCDIC.
6334 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6335 keyUsage if basicConstraints absent for a CA.
6338 *) Make SMIME_write_PKCS7() write mail header values with a format that
6339 is more generally accepted (no spaces before the semicolon), since
6340 some programs can't parse those values properly otherwise. Also make
6341 sure BIO's that break lines after each write do not create invalid
6345 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6346 macros previously used would not encode an empty SEQUENCE OF
6347 and break the signature.
6349 [This change does not apply to 0.9.7.]
6351 *) Zero the premaster secret after deriving the master secret in
6355 *) Add some EVP_add_digest_alias registrations (as found in
6356 OpenSSL_add_all_digests()) to SSL_library_init()
6357 aka OpenSSL_add_ssl_algorithms(). This provides improved
6358 compatibility with peers using X.509 certificates
6359 with unconventional AlgorithmIdentifier OIDs.
6362 *) Fix for Irix with NO_ASM.
6363 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6365 *) ./config script fixes.
6366 [Ulf Moeller, Richard Levitte]
6368 *) Fix 'openssl passwd -1'.
6371 *) Change PKCS12_key_gen_asc() so it can cope with non null
6372 terminated strings whose length is passed in the passlen
6373 parameter, for example from PEM callbacks. This was done
6374 by adding an extra length parameter to asc2uni().
6375 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6377 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6378 call failed, free the DSA structure.
6381 *) Fix to uni2asc() to cope with zero length Unicode strings.
6382 These are present in some PKCS#12 files.
6385 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6386 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6387 when writing a 32767 byte record.
6388 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6390 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6391 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6393 (RSA objects have a reference count access to which is protected
6394 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6395 so they are meant to be shared between threads.)
6396 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6397 "Reddie, Steven" <Steven.Reddie@ca.com>]
6399 *) Fix a deadlock in CRYPTO_mem_leaks().
6402 *) Use better test patterns in bntest.
6405 *) rand_win.c fix for Borland C.
6408 *) BN_rshift bugfix for n == 0.
6411 *) Add a 'bctest' script that checks for some known 'bc' bugs
6412 so that 'make test' does not abort just because 'bc' is broken.
6415 *) Store verify_result within SSL_SESSION also for client side to
6416 avoid potential security hole. (Re-used sessions on the client side
6417 always resulted in verify_result==X509_V_OK, not using the original
6418 result of the server certificate verification.)
6421 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6422 SSL3_RT_APPLICATION_DATA, return 0.
6423 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6427 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6428 releases, have been re-implemented by renaming the previous
6429 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6430 and ssl3_read_internal, respectively, and adding 'peek' parameters
6431 to them. The new ssl[23]_{read,peek} functions are calls to
6432 ssl[23]_read_internal with the 'peek' flag set appropriately.
6433 A 'peek' parameter has also been added to ssl3_read_bytes, which
6434 does the actual work for ssl3_read_internal.
6437 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6438 the method-specific "init()" handler. Also clean up ex_data after
6439 calling the method-specific "finish()" handler. Previously, this was
6440 happening the other way round.
6443 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6444 The previous value, 12, was not always sufficient for BN_mod_exp().
6447 *) Make sure that shared libraries get the internal name engine with
6448 the full version number and not just 0. This should mark the
6449 shared libraries as not backward compatible. Of course, this should
6450 be changed again when we can guarantee backward binary compatibility.
6453 *) Fix typo in get_cert_by_subject() in by_dir.c
6454 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6456 *) Rework the system to generate shared libraries:
6458 - Make note of the expected extension for the shared libraries and
6459 if there is a need for symbolic links from for example libcrypto.so.0
6460 to libcrypto.so.0.9.7. There is extended info in Configure for
6463 - Make as few rebuilds of the shared libraries as possible.
6465 - Still avoid linking the OpenSSL programs with the shared libraries.
6467 - When installing, install the shared libraries separately from the
6471 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6473 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6474 and not in SSL_clear because the latter is also used by the
6475 accept/connect functions; previously, the settings made by
6476 SSL_set_read_ahead would be lost during the handshake.
6477 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6479 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6480 Previously, it would create entries for disableed algorithms no
6484 *) Added several new manual pages for SSL_* function.
6487 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6489 *) In ssl23_get_client_hello, generate an error message when faced
6490 with an initial SSL 3.0/TLS record that is too small to contain the
6491 first two bytes of the ClientHello message, i.e. client_version.
6492 (Note that this is a pathologic case that probably has never happened
6493 in real life.) The previous approach was to use the version number
6494 from the record header as a substitute; but our protocol choice
6495 should not depend on that one because it is not authenticated
6496 by the Finished messages.
6499 *) More robust randomness gathering functions for Windows.
6500 [Jeffrey Altman <jaltman@columbia.edu>]
6502 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6503 not set then we don't setup the error code for issuer check errors
6504 to avoid possibly overwriting other errors which the callback does
6505 handle. If an application does set the flag then we assume it knows
6506 what it is doing and can handle the new informational codes
6510 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6511 a general "ANY" type, as such it should be able to decode anything
6512 including tagged types. However it didn't check the class so it would
6513 wrongly interpret tagged types in the same way as their universal
6514 counterpart and unknown types were just rejected. Changed so that the
6515 tagged and unknown types are handled in the same way as a SEQUENCE:
6516 that is the encoding is stored intact. There is also a new type
6517 "V_ASN1_OTHER" which is used when the class is not universal, in this
6518 case we have no idea what the actual type is so we just lump them all
6522 *) On VMS, stdout may very well lead to a file that is written to
6523 in a record-oriented fashion. That means that every write() will
6524 write a separate record, which will be read separately by the
6525 programs trying to read from it. This can be very confusing.
6527 The solution is to put a BIO filter in the way that will buffer
6528 text until a linefeed is reached, and then write everything a
6529 line at a time, so every record written will be an actual line,
6530 not chunks of lines and not (usually doesn't happen, but I've
6531 seen it once) several lines in one record. BIO_f_linebuffer() is
6534 Currently, it's a VMS-only method, because that's where it has
6535 been tested well enough.
6538 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6539 it can return incorrect results.
6540 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6541 but it was in 0.9.6-beta[12].)
6544 *) Disable the check for content being present when verifying detached
6545 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6546 include zero length content when signing messages.
6549 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6550 BIO_ctrl (for BIO pairs).
6553 *) Add DSO method for VMS.
6556 *) Bug fix: Montgomery multiplication could produce results with the
6560 *) Add RPM specification openssl.spec and modify it to build three
6561 packages. The default package contains applications, application
6562 documentation and run-time libraries. The devel package contains
6563 include files, static libraries and function documentation. The
6564 doc package contains the contents of the doc directory. The original
6565 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6568 *) Add a large number of documentation files for many SSL routines.
6569 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6571 *) Add a configuration entry for Sony News 4.
6572 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6574 *) Don't set the two most significant bits to one when generating a
6575 random number < q in the DSA library.
6578 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6579 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6580 the underlying transport is blocking) if a handshake took place.
6581 (The default behaviour is needed by applications such as s_client
6582 and s_server that use select() to determine when to use SSL_read;
6583 but for applications that know in advance when to expect data, it
6584 just makes things more complicated.)
6587 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6591 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6592 work better on such systems.
6593 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6595 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6596 Update PKCS12_parse() so it copies the friendlyName and the
6597 keyid to the certificates aux info.
6600 *) Fix bug in PKCS7_verify() which caused an infinite loop
6601 if there was more than one signature.
6602 [Sven Uszpelkat <su@celocom.de>]
6604 *) Major change in util/mkdef.pl to include extra information
6605 about each symbol, as well as presentig variables as well
6606 as functions. This change means that there's n more need
6607 to rebuild the .num files when some algorithms are excluded.
6610 *) Allow the verify time to be set by an application,
6611 rather than always using the current time.
6614 *) Phase 2 verify code reorganisation. The certificate
6615 verify code now looks up an issuer certificate by a
6616 number of criteria: subject name, authority key id
6617 and key usage. It also verifies self signed certificates
6618 by the same criteria. The main comparison function is
6619 X509_check_issued() which performs these checks.
6621 Lot of changes were necessary in order to support this
6622 without completely rewriting the lookup code.
6624 Authority and subject key identifier are now cached.
6626 The LHASH 'certs' is X509_STORE has now been replaced
6627 by a STACK_OF(X509_OBJECT). This is mainly because an
6628 LHASH can't store or retrieve multiple objects with
6629 the same hash value.
6631 As a result various functions (which were all internal
6632 use only) have changed to handle the new X509_STORE
6633 structure. This will break anything that messed round
6634 with X509_STORE internally.
6636 The functions X509_STORE_add_cert() now checks for an
6637 exact match, rather than just subject name.
6639 The X509_STORE API doesn't directly support the retrieval
6640 of multiple certificates matching a given criteria, however
6641 this can be worked round by performing a lookup first
6642 (which will fill the cache with candidate certificates)
6643 and then examining the cache for matches. This is probably
6644 the best we can do without throwing out X509_LOOKUP
6645 entirely (maybe later...).
6647 The X509_VERIFY_CTX structure has been enhanced considerably.
6649 All certificate lookup operations now go via a get_issuer()
6650 callback. Although this currently uses an X509_STORE it
6651 can be replaced by custom lookups. This is a simple way
6652 to bypass the X509_STORE hackery necessary to make this
6653 work and makes it possible to use more efficient techniques
6654 in future. A very simple version which uses a simple
6655 STACK for its trusted certificate store is also provided
6656 using X509_STORE_CTX_trusted_stack().
6658 The verify_cb() and verify() callbacks now have equivalents
6659 in the X509_STORE_CTX structure.
6661 X509_STORE_CTX also has a 'flags' field which can be used
6662 to customise the verify behaviour.
6665 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6666 excludes S/MIME capabilities.
6669 *) When a certificate request is read in keep a copy of the
6670 original encoding of the signed data and use it when outputing
6671 again. Signatures then use the original encoding rather than
6672 a decoded, encoded version which may cause problems if the
6673 request is improperly encoded.
6676 *) For consistency with other BIO_puts implementations, call
6677 buffer_write(b, ...) directly in buffer_puts instead of calling
6680 In BIO_puts, increment b->num_write as in BIO_write.
6681 [Peter.Sylvester@EdelWeb.fr]
6683 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6684 BN_zero, we may not return a BIGNUM with an array consisting of
6688 *) Avoid calling abort() from within the library when problems are
6689 detected, except if preprocessor symbols have been defined
6690 (such as REF_CHECK, BN_DEBUG etc.).
6693 *) New openssl application 'rsautl'. This utility can be
6694 used for low level RSA operations. DER public key
6695 BIO/fp routines also added.
6698 *) New Configure entry and patches for compiling on QNX 4.
6699 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6701 *) A demo state-machine implementation was sponsored by
6702 Nuron (http://www.nuron.com/) and is now available in
6703 demos/state_machine.
6706 *) New options added to the 'dgst' utility for signature
6707 generation and verification.
6710 *) Unrecognized PKCS#7 content types are now handled via a
6711 catch all ASN1_TYPE structure. This allows unsupported
6712 types to be stored as a "blob" and an application can
6713 encode and decode it manually.
6716 *) Fix various signed/unsigned issues to make a_strex.c
6718 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6720 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6721 length if passed a buffer. ASN1_INTEGER_to_BN failed
6722 if passed a NULL BN and its argument was negative.
6723 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6725 *) Modification to PKCS#7 encoding routines to output definite
6726 length encoding. Since currently the whole structures are in
6727 memory there's not real point in using indefinite length
6728 constructed encoding. However if OpenSSL is compiled with
6729 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6732 *) Added BIO_vprintf() and BIO_vsnprintf().
6735 *) Added more prefixes to parse for in the the strings written
6736 through a logging bio, to cover all the levels that are available
6737 through syslog. The prefixes are now:
6739 PANIC, EMERG, EMR => LOG_EMERG
6740 ALERT, ALR => LOG_ALERT
6741 CRIT, CRI => LOG_CRIT
6742 ERROR, ERR => LOG_ERR
6743 WARNING, WARN, WAR => LOG_WARNING
6744 NOTICE, NOTE, NOT => LOG_NOTICE
6745 INFO, INF => LOG_INFO
6746 DEBUG, DBG => LOG_DEBUG
6748 and as before, if none of those prefixes are present at the
6749 beginning of the string, LOG_ERR is chosen.
6751 On Win32, the LOG_* levels are mapped according to this:
6753 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6754 LOG_WARNING => EVENTLOG_WARNING_TYPE
6755 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6759 *) Made it possible to reconfigure with just the configuration
6760 argument "reconf" or "reconfigure". The command line arguments
6761 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6762 and are retrieved from there when reconfiguring.
6766 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6768 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6771 *) The obj_dat.pl script was messing up the sorting of object
6772 names. The reason was that it compared the quoted version
6773 of strings as a result "OCSP" > "OCSP Signing" because
6774 " > SPACE. Changed script to store unquoted versions of
6775 names and add quotes on output. It was also omitting some
6776 names from the lookup table if they were given a default
6777 value (that is if SN is missing it is given the same
6778 value as LN and vice versa), these are now added on the
6779 grounds that if an object has a name we should be able to
6780 look it up. Finally added warning output when duplicate
6781 short or long names are found.
6784 *) Changes needed for Tandem NSK.
6785 [Scott Uroff <scott@xypro.com>]
6787 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6788 RSA_padding_check_SSLv23(), special padding was never detected
6789 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6790 version rollback attacks was not effective.
6792 In s23_clnt.c, don't use special rollback-attack detection padding
6793 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6794 client; similarly, in s23_srvr.c, don't do the rollback check if
6795 SSL 2.0 is the only protocol enabled in the server.
6798 *) Make it possible to get hexdumps of unprintable data with 'openssl
6799 asn1parse'. By implication, the functions ASN1_parse_dump() and
6800 BIO_dump_indent() are added.
6803 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6804 these print out strings and name structures based on various
6805 flags including RFC2253 support and proper handling of
6806 multibyte characters. Added options to the 'x509' utility
6807 to allow the various flags to be set.
6810 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6811 Also change the functions X509_cmp_current_time() and
6812 X509_gmtime_adj() work with an ASN1_TIME structure,
6813 this will enable certificates using GeneralizedTime in validity
6814 dates to be checked.
6817 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6818 negative public key encodings) on by default,
6819 NO_NEG_PUBKEY_BUG can be set to disable it.
6822 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6823 content octets. An i2c_ASN1_OBJECT is unnecessary because
6824 the encoding can be trivially obtained from the structure.
6827 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6828 not read locks (CRYPTO_r_[un]lock).
6831 *) A first attempt at creating official support for shared
6832 libraries through configuration. I've kept it so the
6833 default is static libraries only, and the OpenSSL programs
6834 are always statically linked for now, but there are
6835 preparations for dynamic linking in place.
6836 This has been tested on Linux and Tru64.
6839 *) Randomness polling function for Win9x, as described in:
6840 Peter Gutmann, Software Generation of Practically Strong
6844 *) Fix so PRNG is seeded in req if using an already existing
6848 *) New options to smime application. -inform and -outform
6849 allow alternative formats for the S/MIME message including
6850 PEM and DER. The -content option allows the content to be
6851 specified separately. This should allow things like Netscape
6852 form signing output easier to verify.
6855 *) Fix the ASN1 encoding of tags using the 'long form'.
6858 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6859 STRING types. These convert content octets to and from the
6860 underlying type. The actual tag and length octets are
6861 already assumed to have been read in and checked. These
6862 are needed because all other string types have virtually
6863 identical handling apart from the tag. By having versions
6864 of the ASN1 functions that just operate on content octets
6865 IMPLICIT tagging can be handled properly. It also allows
6866 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6867 and ASN1_INTEGER are identical apart from the tag.
6870 *) Change the handling of OID objects as follows:
6872 - New object identifiers are inserted in objects.txt, following
6873 the syntax given in objects.README.
6874 - objects.pl is used to process obj_mac.num and create a new
6876 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6879 This is currently kind of a hack, and the perl code in objects.pl
6880 isn't very elegant, but it works as I intended. The simplest way
6881 to check that it worked correctly is to look in obj_dat.h and
6882 check the array nid_objs and make sure the objects haven't moved
6883 around (this is important!). Additions are OK, as well as
6884 consistent name changes.
6887 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6890 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6891 The given file adds to whatever has already been seeded into the
6892 random pool through the RANDFILE configuration file option or
6893 environment variable, or the default random state file.
6896 *) mkstack.pl now sorts each macro group into lexical order.
6897 Previously the output order depended on the order the files
6898 appeared in the directory, resulting in needless rewriting
6902 *) Patches to make OpenSSL compile under Win32 again. Mostly
6903 work arounds for the VC++ problem that it treats func() as
6904 func(void). Also stripped out the parts of mkdef.pl that
6905 added extra typesafe functions: these no longer exist.
6908 *) Reorganisation of the stack code. The macros are now all
6909 collected in safestack.h . Each macro is defined in terms of
6910 a "stack macro" of the form SKM_<name>(type, a, b). The
6911 DEBUG_SAFESTACK is now handled in terms of function casts,
6912 this has the advantage of retaining type safety without the
6913 use of additional functions. If DEBUG_SAFESTACK is not defined
6914 then the non typesafe macros are used instead. Also modified the
6915 mkstack.pl script to handle the new form. Needs testing to see
6916 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6917 the default if no major problems. Similar behaviour for ASN1_SET_OF
6918 and PKCS12_STACK_OF.
6921 *) When some versions of IIS use the 'NET' form of private key the
6922 key derivation algorithm is different. Normally MD5(password) is
6923 used as a 128 bit RC4 key. In the modified case
6924 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6925 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6926 as the old Netscape_RSA functions except they have an additional
6927 'sgckey' parameter which uses the modified algorithm. Also added
6928 an -sgckey command line option to the rsa utility. Thanks to
6929 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6930 algorithm to openssl-dev.
6933 *) The evp_local.h macros were using 'c.##kname' which resulted in
6934 invalid expansion on some systems (SCO 5.0.5 for example).
6935 Corrected to 'c.kname'.
6936 [Phillip Porch <root@theporch.com>]
6938 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6939 a STACK of email addresses from a certificate or request, these look
6940 in the subject name and the subject alternative name extensions and
6941 omit any duplicate addresses.
6944 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6945 This makes DSA verification about 2 % faster.
6948 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6949 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6950 plus overhead for 1024 bit moduli).
6951 This makes exponentiations about 0.5 % faster for 1024 bit
6952 exponents (as measured by "openssl speed rsa2048").
6955 *) Rename memory handling macros to avoid conflicts with other
6957 Malloc => OPENSSL_malloc
6958 Malloc_locked => OPENSSL_malloc_locked
6959 Realloc => OPENSSL_realloc
6960 Free => OPENSSL_free
6963 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6964 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6967 *) CygWin32 support.
6968 [John Jarvie <jjarvie@newsguy.com>]
6970 *) The type-safe stack code has been rejigged. It is now only compiled
6971 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6972 by default all type-specific stack functions are "#define"d back to
6973 standard stack functions. This results in more streamlined output
6974 but retains the type-safety checking possibilities of the original
6978 *) The STACK code has been cleaned up, and certain type declarations
6979 that didn't make a lot of sense have been brought in line. This has
6980 also involved a cleanup of sorts in safestack.h to more correctly
6981 map type-safe stack functions onto their plain stack counterparts.
6982 This work has also resulted in a variety of "const"ifications of
6983 lots of the code, especially "_cmp" operations which should normally
6984 be prototyped with "const" parameters anyway.
6987 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
6988 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
6989 (The PRNG state consists of two parts, the large pool 'state' and 'md',
6990 where all of 'md' is used each time the PRNG is used, but 'state'
6991 is used only indexed by a cyclic counter. As entropy may not be
6992 well distributed from the beginning, 'md' is important as a
6993 chaining variable. However, the output function chains only half
6994 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
6995 all of 'md', and seeding with STATE_SIZE dummy bytes will result
6996 in all of 'state' being rewritten, with the new values depending
6997 on virtually all of 'md'. This overcomes the 80 bit limitation.)
7000 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
7001 the handshake is continued after ssl_verify_cert_chain();
7002 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
7003 can lead to 'unexplainable' connection aborts later.
7004 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
7006 *) Major EVP API cipher revision.
7007 Add hooks for extra EVP features. This allows various cipher
7008 parameters to be set in the EVP interface. Support added for variable
7009 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
7010 setting of RC2 and RC5 parameters.
7012 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
7015 Remove lots of duplicated code from the EVP library. For example *every*
7016 cipher init() function handles the 'iv' in the same way according to the
7017 cipher mode. They also all do nothing if the 'key' parameter is NULL and
7018 for CFB and OFB modes they zero ctx->num.
7020 New functionality allows removal of S/MIME code RC2 hack.
7022 Most of the routines have the same form and so can be declared in terms
7025 By shifting this to the top level EVP_CipherInit() it can be removed from
7026 all individual ciphers. If the cipher wants to handle IVs or keys
7027 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
7030 Change lots of functions like EVP_EncryptUpdate() to now return a
7031 value: although software versions of the algorithms cannot fail
7032 any installed hardware versions can.
7035 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
7036 this option is set, tolerate broken clients that send the negotiated
7037 protocol version number instead of the requested protocol version
7041 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
7042 i.e. non-zero for export ciphersuites, zero otherwise.
7043 Previous versions had this flag inverted, inconsistent with
7044 rsa_tmp_cb (..._TMP_RSA_CB).
7045 [Bodo Moeller; problem reported by Amit Chopra]
7047 *) Add missing DSA library text string. Work around for some IIS
7048 key files with invalid SEQUENCE encoding.
7051 *) Add a document (doc/standards.txt) that list all kinds of standards
7052 and so on that are implemented in OpenSSL.
7055 *) Enhance c_rehash script. Old version would mishandle certificates
7056 with the same subject name hash and wouldn't handle CRLs at all.
7057 Added -fingerprint option to crl utility, to support new c_rehash
7061 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
7064 *) Fix for SSL server purpose checking. Server checking was
7065 rejecting certificates which had extended key usage present
7066 but no ssl client purpose.
7067 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
7069 *) Make PKCS#12 code work with no password. The PKCS#12 spec
7070 is a little unclear about how a blank password is handled.
7071 Since the password in encoded as a BMPString with terminating
7072 double NULL a zero length password would end up as just the
7073 double NULL. However no password at all is different and is
7074 handled differently in the PKCS#12 key generation code. NS
7075 treats a blank password as zero length. MSIE treats it as no
7076 password on export: but it will try both on import. We now do
7077 the same: PKCS12_parse() tries zero length and no password if
7078 the password is set to "" or NULL (NULL is now a valid password:
7079 it wasn't before) as does the pkcs12 application.
7082 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
7083 perror when PEM_read_bio_X509_REQ fails, the error message must
7084 be obtained from the error queue.
7087 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
7088 it in ERR_remove_state if appropriate, and change ERR_get_state
7089 accordingly to avoid race conditions (this is necessary because
7090 thread_hash is no longer constant once set).
7093 *) Bugfix for linux-elf makefile.one.
7096 *) RSA_get_default_method() will now cause a default
7097 RSA_METHOD to be chosen if one doesn't exist already.
7098 Previously this was only set during a call to RSA_new()
7099 or RSA_new_method(NULL) meaning it was possible for
7100 RSA_get_default_method() to return NULL.
7103 *) Added native name translation to the existing DSO code
7104 that will convert (if the flag to do so is set) filenames
7105 that are sufficiently small and have no path information
7106 into a canonical native form. Eg. "blah" converted to
7107 "libblah.so" or "blah.dll" etc.
7110 *) New function ERR_error_string_n(e, buf, len) which is like
7111 ERR_error_string(e, buf), but writes at most 'len' bytes
7112 including the 0 terminator. For ERR_error_string_n, 'buf'
7114 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
7116 *) CONF library reworked to become more general. A new CONF
7117 configuration file reader "class" is implemented as well as a
7118 new functions (NCONF_*, for "New CONF") to handle it. The now
7119 old CONF_* functions are still there, but are reimplemented to
7120 work in terms of the new functions. Also, a set of functions
7121 to handle the internal storage of the configuration data is
7122 provided to make it easier to write new configuration file
7123 reader "classes" (I can definitely see something reading a
7124 configuration file in XML format, for example), called _CONF_*,
7125 or "the configuration storage API"...
7127 The new configuration file reading functions are:
7129 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
7130 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
7132 NCONF_default, NCONF_WIN32
7134 NCONF_dump_fp, NCONF_dump_bio
7136 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
7137 NCONF_new creates a new CONF object. This works in the same way
7138 as other interfaces in OpenSSL, like the BIO interface.
7139 NCONF_dump_* dump the internal storage of the configuration file,
7140 which is useful for debugging. All other functions take the same
7141 arguments as the old CONF_* functions wth the exception of the
7142 first that must be a `CONF *' instead of a `LHASH *'.
7144 To make it easer to use the new classes with the old CONF_* functions,
7145 the function CONF_set_default_method is provided.
7148 *) Add '-tls1' option to 'openssl ciphers', which was already
7149 mentioned in the documentation but had not been implemented.
7150 (This option is not yet really useful because even the additional
7151 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
7154 *) Initial DSO code added into libcrypto for letting OpenSSL (and
7155 OpenSSL-based applications) load shared libraries and bind to
7156 them in a portable way.
7157 [Geoff Thorpe, with contributions from Richard Levitte]
7159 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
7161 *) Make sure _lrotl and _lrotr are only used with MSVC.
7163 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
7164 (the default implementation of RAND_status).
7166 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
7167 to '-clrext' (= clear extensions), as intended and documented.
7168 [Bodo Moeller; inconsistency pointed out by Michael Attili
7171 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
7172 was larger than the MD block size.
7173 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
7175 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
7176 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
7177 using the passed key: if the passed key was a private key the result
7178 of X509_print(), for example, would be to print out all the private key
7182 *) des_quad_cksum() byte order bug fix.
7183 [Ulf Möller, using the problem description in krb4-0.9.7, where
7184 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
7186 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
7188 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
7190 *) For easily testing in shell scripts whether some command
7191 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
7192 returns with exit code 0 iff no command of the given name is available.
7193 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
7194 the output goes to stdout and nothing is printed to stderr.
7195 Additional arguments are always ignored.
7197 Since for each cipher there is a command of the same name,
7198 the 'no-cipher' compilation switches can be tested this way.
7200 ('openssl no-XXX' is not able to detect pseudo-commands such
7201 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
7204 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
7207 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
7208 is set; it will be thrown away anyway because each handshake creates
7210 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
7211 to parameters -- in previous versions (since OpenSSL 0.9.3) the
7212 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
7213 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
7216 *) New s_client option -ign_eof: EOF at stdin is ignored, and
7217 'Q' and 'R' lose their special meanings (quit/renegotiate).
7218 This is part of what -quiet does; unlike -quiet, -ign_eof
7219 does not suppress any output.
7222 *) Add compatibility options to the purpose and trust code. The
7223 purpose X509_PURPOSE_ANY is "any purpose" which automatically
7224 accepts a certificate or CA, this was the previous behaviour,
7225 with all the associated security issues.
7227 X509_TRUST_COMPAT is the old trust behaviour: only and
7228 automatically trust self signed roots in certificate store. A
7229 new trust setting X509_TRUST_DEFAULT is used to specify that
7230 a purpose has no associated trust setting and it should instead
7231 use the value in the default purpose.
7234 *) Fix the PKCS#8 DSA private key code so it decodes keys again
7235 and fix a memory leak.
7238 *) In util/mkerr.pl (which implements 'make errors'), preserve
7239 reason strings from the previous version of the .c file, as
7240 the default to have only downcase letters (and digits) in
7241 automatically generated reasons codes is not always appropriate.
7244 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
7245 using strerror. Previously, ERR_reason_error_string() returned
7246 library names as reason strings for SYSerr; but SYSerr is a special
7247 case where small numbers are errno values, not library numbers.
7250 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7251 converts DSA parameters into DH parameters. (When creating parameters,
7252 DSA_generate_parameters is used.)
7255 *) Include 'length' (recommended exponent length) in C code generated
7256 by 'openssl dhparam -C'.
7259 *) The second argument to set_label in perlasm was already being used
7260 so couldn't be used as a "file scope" flag. Moved to third argument
7264 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7265 instead of RAND_bytes for encryption IVs and salts.
7268 *) Include RAND_status() into RAND_METHOD instead of implementing
7269 it only for md_rand.c Otherwise replacing the PRNG by calling
7270 RAND_set_rand_method would be impossible.
7273 *) Don't let DSA_generate_key() enter an infinite loop if the random
7274 number generation fails.
7277 *) New 'rand' application for creating pseudo-random output.
7280 *) Added configuration support for Linux/IA64
7281 [Rolf Haberrecker <rolf@suse.de>]
7283 *) Assembler module support for Mingw32.
7286 *) Shared library support for HPUX (in shlib/).
7287 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7289 *) Shared library support for Solaris gcc.
7290 [Lutz Behnke <behnke@trustcenter.de>]
7292 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7294 *) PKCS7_encrypt() was adding text MIME headers twice because they
7295 were added manually and by SMIME_crlf_copy().
7298 *) In bntest.c don't call BN_rand with zero bits argument.
7299 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7301 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7302 case was implemented. This caused BN_div_recp() to fail occasionally.
7305 *) Add an optional second argument to the set_label() in the perl
7306 assembly language builder. If this argument exists and is set
7307 to 1 it signals that the assembler should use a symbol whose
7308 scope is the entire file, not just the current function. This
7309 is needed with MASM which uses the format label:: for this scope.
7310 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7312 *) Change the ASN1 types so they are typedefs by default. Before
7313 almost all types were #define'd to ASN1_STRING which was causing
7314 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7318 *) Change names of new functions to the new get1/get0 naming
7319 convention: After 'get1', the caller owns a reference count
7320 and has to call ..._free; 'get0' returns a pointer to some
7321 data structure without incrementing reference counters.
7322 (Some of the existing 'get' functions increment a reference
7323 counter, some don't.)
7324 Similarly, 'set1' and 'add1' functions increase reference
7325 counters or duplicate objects.
7328 *) Allow for the possibility of temp RSA key generation failure:
7329 the code used to assume it always worked and crashed on failure.
7332 *) Fix potential buffer overrun problem in BIO_printf().
7333 [Ulf Möller, using public domain code by Patrick Powell; problem
7334 pointed out by David Sacerdote <das33@cornell.edu>]
7336 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7337 RAND_egd() and RAND_status(). In the command line application,
7338 the EGD socket can be specified like a seed file using RANDFILE
7342 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7343 Some CAs (e.g. Verisign) distribute certificates in this form.
7346 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7347 list to exclude them. This means that no special compilation option
7348 is needed to use anonymous DH: it just needs to be included in the
7352 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7353 EVP_MD_type. The old functionality is available in a new macro called
7354 EVP_MD_md(). Change code that uses it and update docs.
7357 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7358 where the 'void *' argument is replaced by a function pointer argument.
7359 Previously 'void *' was abused to point to functions, which works on
7360 many platforms, but is not correct. As these functions are usually
7361 called by macros defined in OpenSSL header files, most source code
7362 should work without changes.
7365 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7366 sections with information on -D... compiler switches used for
7367 compiling the library so that applications can see them. To enable
7368 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7369 must be defined. E.g.,
7370 #define OPENSSL_ALGORITHM_DEFINES
7371 #include <openssl/opensslconf.h>
7372 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7373 [Richard Levitte, Ulf and Bodo Möller]
7375 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7379 *) Change the 'other' type in certificate aux info to a STACK_OF
7380 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7381 the required ASN1 format: arbitrary types determined by an OID.
7384 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7385 argument to 'req'. This is not because the function is newer or
7386 better than others it just uses the work 'NEW' in the certificate
7387 request header lines. Some software needs this.
7390 *) Reorganise password command line arguments: now passwords can be
7391 obtained from various sources. Delete the PEM_cb function and make
7392 it the default behaviour: i.e. if the callback is NULL and the
7393 usrdata argument is not NULL interpret it as a null terminated pass
7394 phrase. If usrdata and the callback are NULL then the pass phrase
7395 is prompted for as usual.
7398 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7399 the support is automatically enabled. The resulting binaries will
7400 autodetect the card and use it if present.
7401 [Ben Laurie and Compaq Inc.]
7403 *) Work around for Netscape hang bug. This sends certificate request
7404 and server done in one record. Since this is perfectly legal in the
7405 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7406 the bugs/SSLv3 entry for more info.
7409 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7412 *) Add -rand argument to smime and pkcs12 applications and read/write
7416 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7419 *) Add command line password options to the remaining applications.
7422 *) Bug fix for BN_div_recp() for numerators with an even number of
7426 *) More tests in bntest.c, and changed test_bn output.
7429 *) ./config recognizes MacOS X now.
7432 *) Bug fix for BN_div() when the first words of num and divsor are
7433 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7436 *) Add support for various broken PKCS#8 formats, and command line
7437 options to produce them.
7440 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7441 get temporary BIGNUMs from a BN_CTX.
7444 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7448 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7449 include a #define from the old name to the new. The original intent
7450 was that statically linked binaries could for example just call
7451 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7452 link with digests. This never worked becayse SSLeay_add_all_digests()
7453 and SSLeay_add_all_ciphers() were in the same source file so calling
7454 one would link with the other. They are now in separate source files.
7457 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7460 *) Use a less unusual form of the Miller-Rabin primality test (it used
7461 a binary algorithm for exponentiation integrated into the Miller-Rabin
7462 loop, our standard modexp algorithms are faster).
7465 *) Support for the EBCDIC character set completed.
7466 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7468 *) Source code cleanups: use const where appropriate, eliminate casts,
7469 use void * instead of char * in lhash.
7472 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7473 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7474 this the server could overwrite ephemeral keys that the client
7478 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7479 using 50 iterations of the Rabin-Miller test.
7481 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7482 iterations of the Rabin-Miller test as required by the appendix
7483 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7484 As BN_is_prime_fasttest includes trial division, DSA parameter
7485 generation becomes much faster.
7487 This implies a change for the callback functions in DSA_is_prime
7488 and DSA_generate_parameters: The callback function is called once
7489 for each positive witness in the Rabin-Miller test, not just
7490 occasionally in the inner loop; and the parameters to the
7491 callback function now provide an iteration count for the outer
7492 loop rather than for the current invocation of the inner loop.
7493 DSA_generate_parameters additionally can call the callback
7494 function with an 'iteration count' of -1, meaning that a
7495 candidate has passed the trial division test (when q is generated
7496 from an application-provided seed, trial division is skipped).
7499 *) New function BN_is_prime_fasttest that optionally does trial
7500 division before starting the Rabin-Miller test and has
7501 an additional BN_CTX * argument (whereas BN_is_prime always
7502 has to allocate at least one BN_CTX).
7503 'callback(1, -1, cb_arg)' is called when a number has passed the
7504 trial division stage.
7507 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7511 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7514 *) New function BN_pseudo_rand().
7517 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7518 bignum version of BN_from_montgomery() with the working code from
7519 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7523 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7524 made it impossible to use the same SSL_SESSION data structure in
7525 SSL2 clients in multiple threads.
7528 *) The return value of RAND_load_file() no longer counts bytes obtained
7529 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7530 to seed the PRNG (previously an explicit byte count was required).
7531 [Ulf Möller, Bodo Möller]
7533 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7534 used (char *) instead of (void *) and had casts all over the place.
7537 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7540 *) Retain source code compatibility for BN_prime_checks macro:
7541 BN_is_prime(..., BN_prime_checks, ...) now uses
7542 BN_prime_checks_for_size to determine the appropriate number of
7543 Rabin-Miller iterations.
7546 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7547 DH_CHECK_P_NOT_SAFE_PRIME.
7548 (Check if this is true? OpenPGP calls them "strong".)
7551 *) Merge the functionality of "dh" and "gendh" programs into a new program
7552 "dhparam". The old programs are retained for now but will handle DH keys
7553 (instead of parameters) in future.
7556 *) Make the ciphers, s_server and s_client programs check the return values
7557 when a new cipher list is set.
7560 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7561 ciphers. Before when the 56bit ciphers were enabled the sorting was
7564 The syntax for the cipher sorting has been extended to support sorting by
7565 cipher-strength (using the strength_bits hard coded in the tables).
7566 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7568 Fix a bug in the cipher-command parser: when supplying a cipher command
7569 string with an "undefined" symbol (neither command nor alphanumeric
7570 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7571 an error is flagged.
7573 Due to the strength-sorting extension, the code of the
7574 ssl_create_cipher_list() function was completely rearranged. I hope that
7575 the readability was also increased :-)
7576 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7578 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7579 for the first serial number and places 2 in the serial number file. This
7580 avoids problems when the root CA is created with serial number zero and
7581 the first user certificate has the same issuer name and serial number
7585 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7586 the new code. Add documentation for this stuff.
7589 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7590 X509_*() to X509at_*() on the grounds that they don't handle X509
7591 structures and behave in an analagous way to the X509v3 functions:
7592 they shouldn't be called directly but wrapper functions should be used
7595 So we also now have some wrapper functions that call the X509at functions
7596 when passed certificate requests. (TO DO: similar things can be done with
7597 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7598 things. Some of these need some d2i or i2d and print functionality
7599 because they handle more complex structures.)
7602 *) Add missing #ifndefs that caused missing symbols when building libssl
7603 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7604 NO_RSA in ssl/s2*.c.
7605 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7607 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7608 has a return value which indicates the quality of the random data
7609 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7610 error queue. New function RAND_pseudo_bytes() generates output that is
7611 guaranteed to be unique but not unpredictable. RAND_add is like
7612 RAND_seed, but takes an extra argument for an entropy estimate
7613 (RAND_seed always assumes full entropy).
7616 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7617 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7618 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7619 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7620 false-positive rate of at most 2^-80 for random input.
7623 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7626 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7627 in the 0.9.5 release), this returns the chain
7628 from an X509_CTX structure with a dup of the stack and all
7629 the X509 reference counts upped: so the stack will exist
7630 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7633 Also make SSL_SESSION_print() print out the verify return
7637 *) Add manpage for the pkcs12 command. Also change the default
7638 behaviour so MAC iteration counts are used unless the new
7639 -nomaciter option is used. This improves file security and
7640 only older versions of MSIE (4.0 for example) need it.
7643 *) Honor the no-xxx Configure options when creating .DEF files.
7646 *) Add PKCS#10 attributes to field table: challengePassword,
7647 unstructuredName and unstructuredAddress. These are taken from
7648 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7649 international characters are used.
7651 More changes to X509_ATTRIBUTE code: allow the setting of types
7652 based on strings. Remove the 'loc' parameter when adding
7653 attributes because these will be a SET OF encoding which is sorted
7657 *) Initial changes to the 'req' utility to allow request generation
7658 automation. This will allow an application to just generate a template
7659 file containing all the field values and have req construct the
7662 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7663 used all over the place including certificate requests and PKCS#7
7664 structures. They are currently handled manually where necessary with
7665 some primitive wrappers for PKCS#7. The new functions behave in a
7666 manner analogous to the X509 extension functions: they allow
7667 attributes to be looked up by NID and added.
7669 Later something similar to the X509V3 code would be desirable to
7670 automatically handle the encoding, decoding and printing of the
7671 more complex types. The string types like challengePassword can
7672 be handled by the string table functions.
7674 Also modified the multi byte string table handling. Now there is
7675 a 'global mask' which masks out certain types. The table itself
7676 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7677 is useful when for example there is only one permissible type
7678 (as in countryName) and using the mask might result in no valid
7682 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7683 SSL_get_peer_finished to allow applications to obtain the latest
7684 Finished messages sent to the peer or expected from the peer,
7685 respectively. (SSL_get_peer_finished is usually the Finished message
7686 actually received from the peer, otherwise the protocol will be aborted.)
7688 As the Finished message are message digests of the complete handshake
7689 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7690 be used for external authentication procedures when the authentication
7691 provided by SSL/TLS is not desired or is not enough.
7694 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7695 the host supports BWX extension and if Compaq C is present on the
7696 $PATH. Just exploiting of the BWX extension results in 20-30%
7697 performance kick for some algorithms, e.g. DES and RC4 to mention
7698 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7702 *) Add support for MS "fast SGC". This is arguably a violation of the
7703 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7704 weak crypto and after checking the certificate is SGC a second one
7705 with strong crypto. MS SGC stops the first handshake after receiving
7706 the server certificate message and sends a second client hello. Since
7707 a server will typically do all the time consuming operations before
7708 expecting any further messages from the client (server key exchange
7709 is the most expensive) there is little difference between the two.
7711 To get OpenSSL to support MS SGC we have to permit a second client
7712 hello message after we have sent server done. In addition we have to
7713 reset the MAC if we do get this second client hello.
7716 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7717 if a DER encoded private key is RSA or DSA traditional format. Changed
7718 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7719 format DER encoded private key. Newer code should use PKCS#8 format which
7720 has the key type encoded in the ASN1 structure. Added DER private key
7721 support to pkcs8 application.
7724 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7725 ciphersuites has been selected (as required by the SSL 3/TLS 1
7726 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7727 is set, we interpret this as a request to violate the specification
7728 (the worst that can happen is a handshake failure, and 'correct'
7729 behaviour would result in a handshake failure anyway).
7732 *) In SSL_CTX_add_session, take into account that there might be multiple
7733 SSL_SESSION structures with the same session ID (e.g. when two threads
7734 concurrently obtain them from an external cache).
7735 The internal cache can handle only one SSL_SESSION with a given ID,
7736 so if there's a conflict, we now throw out the old one to achieve
7740 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7741 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7742 some routines that use cipher OIDs: some ciphers do not have OIDs
7743 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7747 *) Simplify the trust setting structure and code. Now we just have
7748 two sequences of OIDs for trusted and rejected settings. These will
7749 typically have values the same as the extended key usage extension
7750 and any application specific purposes.
7752 The trust checking code now has a default behaviour: it will just
7753 check for an object with the same NID as the passed id. Functions can
7754 be provided to override either the default behaviour or the behaviour
7755 for a given id. SSL client, server and email already have functions
7756 in place for compatibility: they check the NID and also return "trusted"
7757 if the certificate is self signed.
7760 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7761 traditional format into an EVP_PKEY structure.
7764 *) Add a password callback function PEM_cb() which either prompts for
7765 a password if usr_data is NULL or otherwise assumes it is a null
7766 terminated password. Allow passwords to be passed on command line
7767 environment or config files in a few more utilities.
7770 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7771 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7772 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7773 Update documentation.
7776 *) Support for ASN1 "NULL" type. This could be handled before by using
7777 ASN1_TYPE but there wasn't any function that would try to read a NULL
7778 and produce an error if it couldn't. For compatibility we also have
7779 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7780 don't allocate anything because they don't need to.
7783 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7785 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7787 *) Rebuild of the memory allocation routines used by OpenSSL code and
7788 possibly others as well. The purpose is to make an interface that
7789 provide hooks so anyone can build a separate set of allocation and
7790 deallocation routines to be used by OpenSSL, for example memory
7791 pool implementations, or something else, which was previously hard
7792 since Malloc(), Realloc() and Free() were defined as macros having
7793 the values malloc, realloc and free, respectively (except for Win32
7794 compilations). The same is provided for memory debugging code.
7795 OpenSSL already comes with functionality to find memory leaks, but
7796 this gives people a chance to debug other memory problems.
7798 With these changes, a new set of functions and macros have appeared:
7800 CRYPTO_set_mem_debug_functions() [F]
7801 CRYPTO_get_mem_debug_functions() [F]
7802 CRYPTO_dbg_set_options() [F]
7803 CRYPTO_dbg_get_options() [F]
7804 CRYPTO_malloc_debug_init() [M]
7806 The memory debug functions are NULL by default, unless the library
7807 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7808 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7809 gives the standard debugging functions that come with OpenSSL) or
7810 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7811 provided by the library user) must be used. When the standard
7812 debugging functions are used, CRYPTO_dbg_set_options can be used to
7813 request additional information:
7814 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7815 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7817 Also, things like CRYPTO_set_mem_functions will always give the
7818 expected result (the new set of functions is used for allocation
7819 and deallocation) at all times, regardless of platform and compiler
7822 To finish it up, some functions that were never use in any other
7823 way than through macros have a new API and new semantic:
7826 CRYPTO_dbg_realloc()
7829 All macros of value have retained their old syntax.
7830 [Richard Levitte and Bodo Moeller]
7832 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7833 ordering of SMIMECapabilities wasn't in "strength order" and there
7834 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7838 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7839 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7840 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7842 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7843 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7844 functionality to handle multipart/signed properly) and a utility
7845 called 'smime' to call all this stuff. This is based on code I
7846 originally wrote for Celo who have kindly allowed it to be
7847 included in OpenSSL.
7850 *) Add variants des_set_key_checked and des_set_key_unchecked of
7851 des_set_key (aka des_key_sched). Global variable des_check_key
7852 decides which of these is called by des_set_key; this way
7853 des_check_key behaves as it always did, but applications and
7854 the library itself, which was buggy for des_check_key == 1,
7855 have a cleaner way to pick the version they need.
7858 *) New function PKCS12_newpass() which changes the password of a
7862 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7863 dynamic mix. In both cases the ids can be used as an index into the
7864 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7865 functions so they accept a list of the field values and the
7866 application doesn't need to directly manipulate the X509_TRUST
7870 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7874 *) Modify the way the V3 extension code looks up extensions. This now
7875 works in a similar way to the object code: we have some "standard"
7876 extensions in a static table which is searched with OBJ_bsearch()
7877 and the application can add dynamic ones if needed. The file
7878 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7879 updated whenever a new extension is added to the core code and kept
7880 in ext_nid order. There is a simple program 'tabtest.c' which checks
7881 this. New extensions are not added too often so this file can readily
7882 be maintained manually.
7884 There are two big advantages in doing things this way. The extensions
7885 can be looked up immediately and no longer need to be "added" using
7886 X509V3_add_standard_extensions(): this function now does nothing.
7887 [Side note: I get *lots* of email saying the extension code doesn't
7888 work because people forget to call this function]
7889 Also no dynamic allocation is done unless new extensions are added:
7890 so if we don't add custom extensions there is no need to call
7891 X509V3_EXT_cleanup().
7894 *) Modify enc utility's salting as follows: make salting the default. Add a
7895 magic header, so unsalted files fail gracefully instead of just decrypting
7896 to garbage. This is because not salting is a big security hole, so people
7897 should be discouraged from doing it.
7900 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7901 digest to be passed on the command line but it only used this
7902 parameter when signing a certificate. Modified so all relevant
7903 operations are affected by the digest parameter including the
7904 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7905 DSA key was used because it didn't fix the digest.
7908 *) Initial certificate chain verify code. Currently tests the untrusted
7909 certificates for consistency with the verify purpose (which is set
7910 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7912 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7913 this is because it will reject chains with invalid extensions whereas
7914 every previous version of OpenSSL and SSLeay made no checks at all.
7916 Trust code: checks the root CA for the relevant trust settings. Trust
7917 settings have an initial value consistent with the verify purpose: e.g.
7918 if the verify purpose is for SSL client use it expects the CA to be
7919 trusted for SSL client use. However the default value can be changed to
7920 permit custom trust settings: one example of this would be to only trust
7921 certificates from a specific "secure" set of CAs.
7923 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7924 which should be used for version portability: especially since the
7925 verify structure is likely to change more often now.
7927 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7928 to set them. If not set then assume SSL clients will verify SSL servers
7931 Two new options to the verify program: -untrusted allows a set of
7932 untrusted certificates to be passed in and -purpose which sets the
7933 intended purpose of the certificate. If a purpose is set then the
7934 new chain verify code is used to check extension consistency.
7937 *) Support for the authority information access extension.
7940 *) Modify RSA and DSA PEM read routines to transparently handle
7941 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7942 public keys in a format compatible with certificate
7943 SubjectPublicKeyInfo structures. Unfortunately there were already
7944 functions called *_PublicKey_* which used various odd formats so
7945 these are retained for compatibility: however the DSA variants were
7946 never in a public release so they have been deleted. Changed dsa/rsa
7947 utilities to handle the new format: note no releases ever handled public
7948 keys so we should be OK.
7950 The primary motivation for this change is to avoid the same fiasco
7951 that dogs private keys: there are several incompatible private key
7952 formats some of which are standard and some OpenSSL specific and
7953 require various evil hacks to allow partial transparent handling and
7954 even then it doesn't work with DER formats. Given the option anything
7955 other than PKCS#8 should be dumped: but the other formats have to
7956 stay in the name of compatibility.
7958 With public keys and the benefit of hindsight one standard format
7959 is used which works with EVP_PKEY, RSA or DSA structures: though
7960 it clearly returns an error if you try to read the wrong kind of key.
7962 Added a -pubkey option to the 'x509' utility to output the public key.
7963 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7964 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7965 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7966 that do the same as the EVP_PKEY_assign_*() except they up the
7967 reference count of the added key (they don't "swallow" the
7971 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7972 CRLs would fail if the file contained no certificates or no CRLs:
7973 added a new function to read in both types and return the number
7974 read: this means that if none are read it will be an error. The
7975 DER versions of the certificate and CRL reader would always fail
7976 because it isn't possible to mix certificates and CRLs in DER format
7977 without choking one or the other routine. Changed this to just read
7978 a certificate: this is the best we can do. Also modified the code
7979 in apps/verify.c to take notice of return codes: it was previously
7980 attempting to read in certificates from NULL pointers and ignoring
7981 any errors: this is one reason why the cert and CRL reader seemed
7982 to work. It doesn't check return codes from the default certificate
7983 routines: these may well fail if the certificates aren't installed.
7986 *) Code to support otherName option in GeneralName.
7989 *) First update to verify code. Change the verify utility
7990 so it warns if it is passed a self signed certificate:
7991 for consistency with the normal behaviour. X509_verify
7992 has been modified to it will now verify a self signed
7993 certificate if *exactly* the same certificate appears
7994 in the store: it was previously impossible to trust a
7995 single self signed certificate. This means that:
7996 openssl verify ss.pem
7997 now gives a warning about a self signed certificate but
7998 openssl verify -CAfile ss.pem ss.pem
8002 *) For servers, store verify_result in SSL_SESSION data structure
8003 (and add it to external session representation).
8004 This is needed when client certificate verifications fails,
8005 but an application-provided verification callback (set by
8006 SSL_CTX_set_cert_verify_callback) allows accepting the session
8007 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
8008 but returns 1): When the session is reused, we have to set
8009 ssl->verify_result to the appropriate error code to avoid
8011 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
8013 *) Fix a bug in the new PKCS#7 code: it didn't consider the
8014 case in PKCS7_dataInit() where the signed PKCS7 structure
8015 didn't contain any existing data because it was being created.
8016 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
8018 *) Add a salt to the key derivation routines in enc.c. This
8019 forms the first 8 bytes of the encrypted file. Also add a
8020 -S option to allow a salt to be input on the command line.
8023 *) New function X509_cmp(). Oddly enough there wasn't a function
8024 to compare two certificates. We do this by working out the SHA1
8025 hash and comparing that. X509_cmp() will be needed by the trust
8029 *) SSL_get1_session() is like SSL_get_session(), but increments
8030 the reference count in the SSL_SESSION returned.
8031 [Geoff Thorpe <geoff@eu.c2.net>]
8033 *) Fix for 'req': it was adding a null to request attributes.
8034 Also change the X509_LOOKUP and X509_INFO code to handle
8035 certificate auxiliary information.
8038 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
8042 *) Add the possibility to add extra information to the memory leak
8043 detecting output, to form tracebacks, showing from where each
8044 allocation was originated: CRYPTO_push_info("constant string") adds
8045 the string plus current file name and line number to a per-thread
8046 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
8047 is like calling CYRPTO_pop_info() until the stack is empty.
8048 Also updated memory leak detection code to be multi-thread-safe.
8051 *) Add options -text and -noout to pkcs7 utility and delete the
8052 encryption options which never did anything. Update docs.
8055 *) Add options to some of the utilities to allow the pass phrase
8056 to be included on either the command line (not recommended on
8057 OSes like Unix) or read from the environment. Update the
8058 manpages and fix a few bugs.
8061 *) Add a few manpages for some of the openssl commands.
8064 *) Fix the -revoke option in ca. It was freeing up memory twice,
8065 leaking and not finding already revoked certificates.
8068 *) Extensive changes to support certificate auxiliary information.
8069 This involves the use of X509_CERT_AUX structure and X509_AUX
8070 functions. An X509_AUX function such as PEM_read_X509_AUX()
8071 can still read in a certificate file in the usual way but it
8072 will also read in any additional "auxiliary information". By
8073 doing things this way a fair degree of compatibility can be
8074 retained: existing certificates can have this information added
8075 using the new 'x509' options.
8077 Current auxiliary information includes an "alias" and some trust
8078 settings. The trust settings will ultimately be used in enhanced
8079 certificate chain verification routines: currently a certificate
8080 can only be trusted if it is self signed and then it is trusted
8084 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
8085 The problem was that one of the replacement routines had not been working
8086 since SSLeay releases. For now the offending routine has been replaced
8087 with non-optimised assembler. Even so, this now gives around 95%
8088 performance improvement for 1024 bit RSA signs.
8091 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
8092 handling. Most clients have the effective key size in bits equal to
8093 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
8094 A few however don't do this and instead use the size of the decrypted key
8095 to determine the RC2 key length and the AlgorithmIdentifier to determine
8096 the effective key length. In this case the effective key length can still
8097 be 40 bits but the key length can be 168 bits for example. This is fixed
8098 by manually forcing an RC2 key into the EVP_PKEY structure because the
8099 EVP code can't currently handle unusual RC2 key sizes: it always assumes
8100 the key length and effective key length are equal.
8103 *) Add a bunch of functions that should simplify the creation of
8104 X509_NAME structures. Now you should be able to do:
8105 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
8106 and have it automatically work out the correct field type and fill in
8107 the structures. The more adventurous can try:
8108 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
8109 and it will (hopefully) work out the correct multibyte encoding.
8112 *) Change the 'req' utility to use the new field handling and multibyte
8113 copy routines. Before the DN field creation was handled in an ad hoc
8114 way in req, ca, and x509 which was rather broken and didn't support
8115 BMPStrings or UTF8Strings. Since some software doesn't implement
8116 BMPStrings or UTF8Strings yet, they can be enabled using the config file
8117 using the dirstring_type option. See the new comment in the default
8118 openssl.cnf for more info.
8121 *) Make crypto/rand/md_rand.c more robust:
8122 - Assure unique random numbers after fork().
8123 - Make sure that concurrent threads access the global counter and
8124 md serializably so that we never lose entropy in them
8125 or use exactly the same state in multiple threads.
8126 Access to the large state is not always serializable because
8127 the additional locking could be a performance killer, and
8128 md should be large enough anyway.
8131 *) New file apps/app_rand.c with commonly needed functionality
8132 for handling the random seed file.
8134 Use the random seed file in some applications that previously did not:
8136 dsaparam -genkey (which also ignored its '-rand' option),
8139 x509 (when signing).
8140 Except on systems with /dev/urandom, it is crucial to have a random
8141 seed file at least for key creation, DSA signing, and for DH exchanges;
8142 for RSA signatures we could do without one.
8144 gendh and gendsa (unlike genrsa) used to read only the first byte
8145 of each file listed in the '-rand' option. The function as previously
8146 found in genrsa is now in app_rand.c and is used by all programs
8147 that support '-rand'.
8150 *) In RAND_write_file, use mode 0600 for creating files;
8151 don't just chmod when it may be too late.
8154 *) Report an error from X509_STORE_load_locations
8155 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
8158 *) New function ASN1_mbstring_copy() this copies a string in either
8159 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
8160 into an ASN1_STRING type. A mask of permissible types is passed
8161 and it chooses the "minimal" type to use or an error if not type
8165 *) Add function equivalents to the various macros in asn1.h. The old
8166 macros are retained with an M_ prefix. Code inside the library can
8167 use the M_ macros. External code (including the openssl utility)
8168 should *NOT* in order to be "shared library friendly".
8171 *) Add various functions that can check a certificate's extensions
8172 to see if it usable for various purposes such as SSL client,
8173 server or S/MIME and CAs of these types. This is currently
8174 VERY EXPERIMENTAL but will ultimately be used for certificate chain
8175 verification. Also added a -purpose flag to x509 utility to
8176 print out all the purposes.
8179 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
8183 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
8184 for, obtain and decode and extension and obtain its critical flag.
8185 This allows all the necessary extension code to be handled in a
8186 single function call.
8189 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
8190 platforms. See crypto/rc4/rc4_enc.c for further details.
8193 *) New -noout option to asn1parse. This causes no output to be produced
8194 its main use is when combined with -strparse and -out to extract data
8195 from a file (which may not be in ASN.1 format).
8198 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
8199 when producing the local key id.
8200 [Richard Levitte <levitte@stacken.kth.se>]
8202 *) New option -dhparam in s_server. This allows a DH parameter file to be
8203 stated explicitly. If it is not stated then it tries the first server
8204 certificate file. The previous behaviour hard coded the filename
8208 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
8209 a public key to be input or output. For example:
8210 openssl rsa -in key.pem -pubout -out pubkey.pem
8211 Also added necessary DSA public key functions to handle this.
8214 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
8215 in the message. This was handled by allowing
8216 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
8217 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
8219 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
8220 to the end of the strings whereas this didn't. This would cause problems
8221 if strings read with d2i_ASN1_bytes() were later modified.
8222 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
8224 *) Fix for base64 decode bug. When a base64 bio reads only one line of
8225 data and it contains EOF it will end up returning an error. This is
8226 caused by input 46 bytes long. The cause is due to the way base64
8227 BIOs find the start of base64 encoded data. They do this by trying a
8228 trial decode on each line until they find one that works. When they
8229 do a flag is set and it starts again knowing it can pass all the
8230 data directly through the decoder. Unfortunately it doesn't reset
8231 the context it uses. This means that if EOF is reached an attempt
8232 is made to pass two EOFs through the context and this causes the
8233 resulting error. This can also cause other problems as well. As is
8234 usual with these problems it takes *ages* to find and the fix is
8235 trivial: move one line.
8236 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
8238 *) Ugly workaround to get s_client and s_server working under Windows. The
8239 old code wouldn't work because it needed to select() on sockets and the
8240 tty (for keypresses and to see if data could be written). Win32 only
8241 supports select() on sockets so we select() with a 1s timeout on the
8242 sockets and then see if any characters are waiting to be read, if none
8243 are present then we retry, we also assume we can always write data to
8244 the tty. This isn't nice because the code then blocks until we've
8245 received a complete line of data and it is effectively polling the
8246 keyboard at 1s intervals: however it's quite a bit better than not
8247 working at all :-) A dedicated Windows application might handle this
8248 with an event loop for example.
8251 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8252 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8253 will be called when RSA_sign() and RSA_verify() are used. This is useful
8254 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8255 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8256 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8257 This necessitated the support of an extra signature type NID_md5_sha1
8258 for SSL signatures and modifications to the SSL library to use it instead
8259 of calling RSA_public_decrypt() and RSA_private_encrypt().
8262 *) Add new -verify -CAfile and -CApath options to the crl program, these
8263 will lookup a CRL issuers certificate and verify the signature in a
8264 similar way to the verify program. Tidy up the crl program so it
8265 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8266 less strict. It will now permit CRL extensions even if it is not
8267 a V2 CRL: this will allow it to tolerate some broken CRLs.
8270 *) Initialize all non-automatic variables each time one of the openssl
8271 sub-programs is started (this is necessary as they may be started
8272 multiple times from the "OpenSSL>" prompt).
8273 [Lennart Bang, Bodo Moeller]
8275 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8276 removing all other RSA functionality (this is what NO_RSA does). This
8277 is so (for example) those in the US can disable those operations covered
8278 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8282 *) Non-copying interface to BIO pairs.
8283 (still largely untested)
8286 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8287 ASCII string. This was handled independently in various places before.
8290 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8291 UTF8 strings a character at a time.
8294 *) Use client_version from client hello to select the protocol
8295 (s23_srvr.c) and for RSA client key exchange verification
8296 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8299 *) Add various utility functions to handle SPKACs, these were previously
8300 handled by poking round in the structure internals. Added new function
8301 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8302 print, verify and generate SPKACs. Based on an original idea from
8303 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8306 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8309 *) Allow the config file extension section to be overwritten on the
8310 command line. Based on an original idea from Massimiliano Pala
8311 <madwolf@comune.modena.it>. The new option is called -extensions
8312 and can be applied to ca, req and x509. Also -reqexts to override
8313 the request extensions in req and -crlexts to override the crl extensions
8317 *) Add new feature to the SPKAC handling in ca. Now you can include
8318 the same field multiple times by preceding it by "XXXX." for example:
8321 this is the same syntax as used in the req config file.
8324 *) Allow certificate extensions to be added to certificate requests. These
8325 are specified in a 'req_extensions' option of the req section of the
8326 config file. They can be printed out with the -text option to req but
8327 are otherwise ignored at present.
8330 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8331 data read consists of only the final block it would not decrypted because
8332 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8333 A misplaced 'break' also meant the decrypted final block might not be
8334 copied until the next read.
8337 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8338 a few extra parameters to the DH structure: these will be useful if
8339 for example we want the value of 'q' or implement X9.42 DH.
8342 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8343 provides hooks that allow the default DSA functions or functions on a
8344 "per key" basis to be replaced. This allows hardware acceleration and
8345 hardware key storage to be handled without major modification to the
8346 library. Also added low level modexp hooks and CRYPTO_EX structure and
8347 associated functions.
8350 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8351 as "read only": it can't be written to and the buffer it points to will
8352 not be freed. Reading from a read only BIO is much more efficient than
8353 a normal memory BIO. This was added because there are several times when
8354 an area of memory needs to be read from a BIO. The previous method was
8355 to create a memory BIO and write the data to it, this results in two
8356 copies of the data and an O(n^2) reading algorithm. There is a new
8357 function BIO_new_mem_buf() which creates a read only memory BIO from
8358 an area of memory. Also modified the PKCS#7 routines to use read only
8362 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8363 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8364 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8365 but a retry condition occured while trying to read the rest.
8368 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8369 NID_pkcs7_encrypted by default: this was wrong since this should almost
8370 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8371 the encrypted data type: this is a more sensible place to put it and it
8372 allows the PKCS#12 code to be tidied up that duplicated this
8376 *) Changed obj_dat.pl script so it takes its input and output files on
8377 the command line. This should avoid shell escape redirection problems
8381 *) Initial support for certificate extension requests, these are included
8382 in things like Xenroll certificate requests. Included functions to allow
8383 extensions to be obtained and added.
8386 *) -crlf option to s_client and s_server for sending newlines as
8387 CRLF (as required by many protocols).
8390 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8392 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8393 [Ralf S. Engelschall]
8395 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8396 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8398 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8402 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8403 DH parameters/keys (q is lost during that conversion, but the resulting
8404 DH parameters contain its length).
8406 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8407 much faster than DH_generate_parameters (which creates parameters
8408 where p = 2*q + 1), and also the smaller q makes DH computations
8409 much more efficient (160-bit exponentiation instead of 1024-bit
8410 exponentiation); so this provides a convenient way to support DHE
8411 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8412 utter importance to use
8413 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8415 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8416 when such DH parameters are used, because otherwise small subgroup
8417 attacks may become possible!
8420 *) Avoid memory leak in i2d_DHparams.
8423 *) Allow the -k option to be used more than once in the enc program:
8424 this allows the same encrypted message to be read by multiple recipients.
8427 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8428 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8429 it will always use the numerical form of the OID, even if it has a short
8433 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8434 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8435 otherwise bn_mod_exp was called. In the case of hardware keys for example
8436 no private key components need be present and it might store extra data
8437 in the RSA structure, which cannot be accessed from bn_mod_exp.
8438 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8439 private key operations.
8442 *) Added support for SPARC Linux.
8445 *) pem_password_cb function type incompatibly changed from
8446 typedef int pem_password_cb(char *buf, int size, int rwflag);
8448 ....(char *buf, int size, int rwflag, void *userdata);
8449 so that applications can pass data to their callbacks:
8450 The PEM[_ASN1]_{read,write}... functions and macros now take an
8451 additional void * argument, which is just handed through whenever
8452 the password callback is called.
8453 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8455 New function SSL_CTX_set_default_passwd_cb_userdata.
8457 Compatibility note: As many C implementations push function arguments
8458 onto the stack in reverse order, the new library version is likely to
8459 interoperate with programs that have been compiled with the old
8460 pem_password_cb definition (PEM_whatever takes some data that
8461 happens to be on the stack as its last argument, and the callback
8462 just ignores this garbage); but there is no guarantee whatsoever that
8465 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8466 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8467 problems not only on Windows, but also on some Unix platforms.
8468 To avoid problematic command lines, these definitions are now in an
8469 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8470 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8473 *) MIPS III/IV assembler module is reimplemented.
8476 *) More DES library cleanups: remove references to srand/rand and
8477 delete an unused file.
8480 *) Add support for the the free Netwide assembler (NASM) under Win32,
8481 since not many people have MASM (ml) and it can be hard to obtain.
8482 This is currently experimental but it seems to work OK and pass all
8483 the tests. Check out INSTALL.W32 for info.
8486 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8487 without temporary keys kept an extra copy of the server key,
8488 and connections with temporary keys did not free everything in case
8492 *) New function RSA_check_key and new openssl rsa option -check
8493 for verifying the consistency of RSA keys.
8494 [Ulf Moeller, Bodo Moeller]
8496 *) Various changes to make Win32 compile work:
8497 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8498 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8499 comparison" warnings.
8500 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8503 *) Add a debugging option to PKCS#5 v2 key generation function: when
8504 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8505 derived keys are printed to stderr.
8508 *) Copy the flags in ASN1_STRING_dup().
8509 [Roman E. Pavlov <pre@mo.msk.ru>]
8511 *) The x509 application mishandled signing requests containing DSA
8512 keys when the signing key was also DSA and the parameters didn't match.
8514 It was supposed to omit the parameters when they matched the signing key:
8515 the verifying software was then supposed to automatically use the CA's
8516 parameters if they were absent from the end user certificate.
8518 Omitting parameters is no longer recommended. The test was also
8519 the wrong way round! This was probably due to unusual behaviour in
8520 EVP_cmp_parameters() which returns 1 if the parameters match.
8521 This meant that parameters were omitted when they *didn't* match and
8522 the certificate was useless. Certificates signed with 'ca' didn't have
8524 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8526 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8527 The interface is as follows:
8528 Applications can use
8529 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8530 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8531 "off" is now the default.
8532 The library internally uses
8533 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8534 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8535 to disable memory-checking temporarily.
8537 Some inconsistent states that previously were possible (and were
8538 even the default) are now avoided.
8540 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8541 with each memory chunk allocated; this is occasionally more helpful
8542 than just having a counter.
8544 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8546 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8550 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8551 which largely parallels "options", but is for changing API behaviour,
8552 whereas "options" are about protocol behaviour.
8553 Initial "mode" flags are:
8555 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8556 a single record has been written.
8557 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8558 retries use the same buffer location.
8559 (But all of the contents must be
8563 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8566 *) Fix problems with no-hmac etc.
8567 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8569 *) New functions RSA_get_default_method(), RSA_set_method() and
8570 RSA_get_method(). These allows replacement of RSA_METHODs without having
8571 to mess around with the internals of an RSA structure.
8574 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8575 Also really enable memory leak checks in openssl.c and in some
8577 [Chad C. Mulligan, Bodo Moeller]
8579 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8580 up the length of negative integers. This has now been simplified to just
8581 store the length when it is first determined and use it later, rather
8582 than trying to keep track of where data is copied and updating it to
8584 [Steve Henson, reported by Brien Wheeler
8585 <bwheeler@authentica-security.com>]
8587 *) Add a new function PKCS7_signatureVerify. This allows the verification
8588 of a PKCS#7 signature but with the signing certificate passed to the
8589 function itself. This contrasts with PKCS7_dataVerify which assumes the
8590 certificate is present in the PKCS#7 structure. This isn't always the
8591 case: certificates can be omitted from a PKCS#7 structure and be
8592 distributed by "out of band" means (such as a certificate database).
8595 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8596 function prototypes in pem.h, also change util/mkdef.pl to add the
8597 necessary function names.
8600 *) mk1mf.pl (used by Windows builds) did not properly read the
8601 options set by Configure in the top level Makefile, and Configure
8602 was not even able to write more than one option correctly.
8603 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8606 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8607 file to be loaded from a BIO or FILE pointer. The BIO version will
8608 for example allow memory BIOs to contain config info.
8611 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8612 Whoever hopes to achieve shared-library compatibility across versions
8613 must use this, not the compile-time macro.
8614 (Exercise 0.9.4: Which is the minimum library version required by
8616 Note: All this applies only to multi-threaded programs, others don't
8620 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8621 through a BIO pair triggered the default case, i.e.
8622 SSLerr(...,SSL_R_UNKNOWN_STATE).
8625 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8626 can use the SSL library even if none of the specific BIOs is
8630 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8631 for the encoded length.
8632 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8634 *) Add initial documentation of the X509V3 functions.
8637 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8638 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8639 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8640 secure PKCS#8 private key format with a high iteration count.
8643 *) Fix determination of Perl interpreter: A perl or perl5
8644 _directory_ in $PATH was also accepted as the interpreter.
8645 [Ralf S. Engelschall]
8647 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8648 wrong with it but it was very old and did things like calling
8649 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8653 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8654 to use the new extension code.
8657 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8658 with macros. This should make it easier to change their form, add extra
8659 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8663 *) Add to configuration table a new entry that can specify an alternative
8664 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8665 according to Mark Crispin <MRC@Panda.COM>.
8669 *) DES CBC did not update the IV. Weird.
8672 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8673 Changing the behaviour of the former might break existing programs --
8674 where IV updating is needed, des_ncbc_encrypt can be used.
8677 *) When bntest is run from "make test" it drives bc to check its
8678 calculations, as well as internally checking them. If an internal check
8679 fails, it needs to cause bc to give a non-zero result or make test carries
8680 on without noticing the failure. Fixed.
8683 *) DES library cleanups.
8686 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8687 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8688 ciphers. NOTE: although the key derivation function has been verified
8689 against some published test vectors it has not been extensively tested
8690 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8694 *) Instead of "mkdir -p", which is not fully portable, use new
8695 Perl script "util/mkdir-p.pl".
8698 *) Rewrite the way password based encryption (PBE) is handled. It used to
8699 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8700 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8701 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8702 the 'parameter' field of the AlgorithmIdentifier is passed to the
8703 underlying key generation function so it must do its own ASN1 parsing.
8704 This has also changed the EVP_PBE_CipherInit() function which now has a
8705 'parameter' argument instead of literal salt and iteration count values
8706 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8709 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8710 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8711 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8712 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8713 value was just used as a "magic string" and not used directly its
8714 value doesn't matter.
8717 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8721 *) "linux-sparc64" configuration (ultrapenguin).
8722 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8723 "linux-sparc" configuration.
8724 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8726 *) config now generates no-xxx options for missing ciphers.
8729 *) Support the EBCDIC character set (work in progress).
8730 File ebcdic.c not yet included because it has a different license.
8731 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8733 *) Support BS2000/OSD-POSIX.
8734 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8736 *) Make callbacks for key generation use void * instead of char *.
8739 *) Make S/MIME samples compile (not yet tested).
8742 *) Additional typesafe stacks.
8745 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8749 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8751 *) New configuration variant "sco5-gcc".
8753 *) Updated some demos.
8754 [Sean O Riordain, Wade Scholine]
8756 *) Add missing BIO_free at exit of pkcs12 application.
8759 *) Fix memory leak in conf.c.
8762 *) Updates for Win32 to assembler version of MD5.
8765 *) Set #! path to perl in apps/der_chop to where we found it
8766 instead of using a fixed path.
8769 *) SHA library changes for irix64-mips4-cc.
8772 *) Improvements for VMS support.
8776 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8778 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8779 This also avoids the problems with SC4.2 and unpatched SC5.
8780 [Andy Polyakov <appro@fy.chalmers.se>]
8782 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8783 These are required because of the typesafe stack would otherwise break
8784 existing code. If old code used a structure member which used to be STACK
8785 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8786 sk_num or sk_value it would produce an error because the num, data members
8787 are not present in STACK_OF. Now it just produces a warning. sk_set
8788 replaces the old method of assigning a value to sk_value
8789 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8790 that does this will no longer work (and should use sk_set instead) but
8791 this could be regarded as a "questionable" behaviour anyway.
8794 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8795 correctly handle encrypted S/MIME data.
8798 *) Change type of various DES function arguments from des_cblock
8799 (which means, in function argument declarations, pointer to char)
8800 to des_cblock * (meaning pointer to array with 8 char elements),
8801 which allows the compiler to do more typechecking; it was like
8802 that back in SSLeay, but with lots of ugly casts.
8804 Introduce new type const_des_cblock.
8807 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8808 problems: find RecipientInfo structure that matches recipient certificate
8809 and initialise the ASN1 structures properly based on passed cipher.
8812 *) Belatedly make the BN tests actually check the results.
8815 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8816 to and from BNs: it was completely broken. New compilation option
8817 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8818 key elements as negative integers.
8821 *) Reorganize and speed up MD5.
8822 [Andy Polyakov <appro@fy.chalmers.se>]
8825 [Richard Levitte <richard@levitte.org>]
8827 *) New option -out to asn1parse to allow the parsed structure to be
8828 output to a file. This is most useful when combined with the -strparse
8829 option to examine the output of things like OCTET STRINGS.
8832 *) Make SSL library a little more fool-proof by not requiring any longer
8833 that SSL_set_{accept,connect}_state be called before
8834 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8835 in many applications because usually everything *appeared* to work as
8836 intended anyway -- now it really works as intended).
8839 *) Move openssl.cnf out of lib/.
8842 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8843 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8844 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8845 [Ralf S. Engelschall]
8847 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8848 handle PKCS#7 enveloped data properly.
8849 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8851 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8852 copying pointers. The cert_st handling is changed by this in
8853 various ways (and thus what used to be known as ctx->default_cert
8854 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8855 any longer when s->cert does not give us what we need).
8856 ssl_cert_instantiate becomes obsolete by this change.
8857 As soon as we've got the new code right (possibly it already is?),
8858 we have solved a couple of bugs of the earlier code where s->cert
8859 was used as if it could not have been shared with other SSL structures.
8861 Note that using the SSL API in certain dirty ways now will result
8862 in different behaviour than observed with earlier library versions:
8863 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8864 does not influence s as it used to.
8866 In order to clean up things more thoroughly, inside SSL_SESSION
8867 we don't use CERT any longer, but a new structure SESS_CERT
8868 that holds per-session data (if available); currently, this is
8869 the peer's certificate chain and, for clients, the server's certificate
8870 and temporary key. CERT holds only those values that can have
8871 meaningful defaults in an SSL_CTX.
8874 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8875 from the internal representation. Various PKCS#7 fixes: remove some
8876 evil casts and set the enc_dig_alg field properly based on the signing
8880 *) Allow PKCS#12 password to be set from the command line or the
8881 environment. Let 'ca' get its config file name from the environment
8882 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8886 *) Allow certificate policies extension to use an IA5STRING for the
8887 organization field. This is contrary to the PKIX definition but
8888 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8892 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8893 without disallowing inline assembler and the like for non-pedantic builds.
8896 *) Support Borland C++ builder.
8897 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8902 *) SHA-1 cleanups and performance enhancements.
8903 [Andy Polyakov <appro@fy.chalmers.se>]
8905 *) Sparc v8plus assembler for the bignum library.
8906 [Andy Polyakov <appro@fy.chalmers.se>]
8908 *) Accept any -xxx and +xxx compiler options in Configure.
8911 *) Update HPUX configuration.
8914 *) Add missing sk_<type>_unshift() function to safestack.h
8915 [Ralf S. Engelschall]
8917 *) New function SSL_CTX_use_certificate_chain_file that sets the
8918 "extra_cert"s in addition to the certificate. (This makes sense
8919 only for "PEM" format files, as chains as a whole are not
8923 *) Support verify_depth from the SSL API.
8924 x509_vfy.c had what can be considered an off-by-one-error:
8925 Its depth (which was not part of the external interface)
8926 was actually counting the number of certificates in a chain;
8927 now it really counts the depth.
8930 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8931 instead of X509err, which often resulted in confusing error
8932 messages since the error codes are not globally unique
8933 (e.g. an alleged error in ssl3_accept when a certificate
8934 didn't match the private key).
8936 *) New function SSL_CTX_set_session_id_context that allows to set a default
8937 value (so that you don't need SSL_set_session_id_context for each
8938 connection using the SSL_CTX).
8941 *) OAEP decoding bug fix.
8944 *) Support INSTALL_PREFIX for package builders, as proposed by
8948 *) New Configure options "threads" and "no-threads". For systems
8949 where the proper compiler options are known (currently Solaris
8950 and Linux), "threads" is the default.
8953 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8956 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8957 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8958 such as /usr/local/bin.
8961 *) "make linux-shared" to build shared libraries.
8962 [Niels Poppe <niels@netbox.org>]
8964 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8967 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8968 extension adding in x509 utility.
8971 *) Remove NOPROTO sections and error code comments.
8974 *) Partial rewrite of the DEF file generator to now parse the ANSI
8978 *) New Configure options --prefix=DIR and --openssldir=DIR.
8981 *) Complete rewrite of the error code script(s). It is all now handled
8982 by one script at the top level which handles error code gathering,
8983 header rewriting and C source file generation. It should be much better
8984 than the old method: it now uses a modified version of Ulf's parser to
8985 read the ANSI prototypes in all header files (thus the old K&R definitions
8986 aren't needed for error creation any more) and do a better job of
8987 translating function codes into names. The old 'ASN1 error code imbedded
8988 in a comment' is no longer necessary and it doesn't use .err files which
8989 have now been deleted. Also the error code call doesn't have to appear all
8990 on one line (which resulted in some large lines...).
8993 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
8996 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
8997 0 (which usually indicates a closed connection), but continue reading.
9000 *) Fix some race conditions.
9003 *) Add support for CRL distribution points extension. Add Certificate
9004 Policies and CRL distribution points documentation.
9007 *) Move the autogenerated header file parts to crypto/opensslconf.h.
9010 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
9011 8 of keying material. Merlin has also confirmed interop with this fix
9012 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
9013 [Merlin Hughes <merlin@baltimore.ie>]
9015 *) Fix lots of warnings.
9016 [Richard Levitte <levitte@stacken.kth.se>]
9018 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
9019 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
9020 [Richard Levitte <levitte@stacken.kth.se>]
9022 *) Fix problems with sizeof(long) == 8.
9023 [Andy Polyakov <appro@fy.chalmers.se>]
9025 *) Change functions to ANSI C.
9028 *) Fix typos in error codes.
9029 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
9031 *) Remove defunct assembler files from Configure.
9034 *) SPARC v8 assembler BIGNUM implementation.
9035 [Andy Polyakov <appro@fy.chalmers.se>]
9037 *) Support for Certificate Policies extension: both print and set.
9038 Various additions to support the r2i method this uses.
9041 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
9042 return a const string when you are expecting an allocated buffer.
9045 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
9046 types DirectoryString and DisplayText.
9049 *) Add code to allow r2i extensions to access the configuration database,
9050 add an LHASH database driver and add several ctx helper functions.
9053 *) Fix an evil bug in bn_expand2() which caused various BN functions to
9054 fail when they extended the size of a BIGNUM.
9057 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
9058 support typesafe stack.
9061 *) Fix typo in SSL_[gs]et_options().
9062 [Nils Frostberg <nils@medcom.se>]
9064 *) Delete various functions and files that belonged to the (now obsolete)
9065 old X509V3 handling code.
9068 *) New Configure option "rsaref".
9071 *) Don't auto-generate pem.h.
9074 *) Introduce type-safe ASN.1 SETs.
9077 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
9078 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
9080 *) Introduce type-safe STACKs. This will almost certainly break lots of code
9081 that links with OpenSSL (well at least cause lots of warnings), but fear
9082 not: the conversion is trivial, and it eliminates loads of evil casts. A
9083 few STACKed things have been converted already. Feel free to convert more.
9084 In the fullness of time, I'll do away with the STACK type altogether.
9087 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
9088 specified in <certfile> by updating the entry in the index.txt file.
9089 This way one no longer has to edit the index.txt file manually for
9090 revoking a certificate. The -revoke option does the gory details now.
9091 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
9093 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
9094 `-text' option at all and this way the `-noout -text' combination was
9095 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
9096 [Ralf S. Engelschall]
9098 *) Make sure a corresponding plain text error message exists for the
9099 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
9100 verify callback function determined that a certificate was revoked.
9101 [Ralf S. Engelschall]
9103 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
9104 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
9105 all available cipers including rc5, which was forgotten until now.
9106 In order to let the testing shell script know which algorithms
9107 are available, a new (up to now undocumented) command
9108 "openssl list-cipher-commands" is used.
9111 *) Bugfix: s_client occasionally would sleep in select() when
9112 it should have checked SSL_pending() first.
9115 *) New functions DSA_do_sign and DSA_do_verify to provide access to
9116 the raw DSA values prior to ASN.1 encoding.
9119 *) Tweaks to Configure
9120 [Niels Poppe <niels@netbox.org>]
9122 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
9126 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
9129 *) New config option to avoid instructions that are illegal on the 80386.
9130 The default code is faster, but requires at least a 486.
9133 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
9134 SSL2_SERVER_VERSION (not used at all) macros, which are now the
9135 same as SSL2_VERSION anyway.
9138 *) New "-showcerts" option for s_client.
9141 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
9142 application. Various cleanups and fixes.
9145 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
9146 modify error routines to work internally. Add error codes and PBE init
9147 to library startup routines.
9150 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
9151 packing functions to asn1 and evp. Changed function names and error
9152 codes along the way.
9155 *) PKCS12 integration: and so it begins... First of several patches to
9156 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
9157 objects to objects.h
9160 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
9161 and display support for Thawte strong extranet extension.
9164 *) Add LinuxPPC support.
9165 [Jeff Dubrule <igor@pobox.org>]
9167 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
9168 bn_div_words in alpha.s.
9169 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
9171 *) Make sure the RSA OAEP test is skipped under -DRSAref because
9172 OAEP isn't supported when OpenSSL is built with RSAref.
9173 [Ulf Moeller <ulf@fitug.de>]
9175 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
9176 so they no longer are missing under -DNOPROTO.
9177 [Soren S. Jorvang <soren@t.dk>]
9180 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
9182 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
9183 doesn't work when the session is reused. Coming soon!
9186 *) Fix a security hole, that allows sessions to be reused in the wrong
9187 context thus bypassing client cert protection! All software that uses
9188 client certs and session caches in multiple contexts NEEDS PATCHING to
9189 allow session reuse! A fuller solution is in the works.
9190 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
9192 *) Some more source tree cleanups (removed obsolete files
9193 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
9194 permission on "config" script to be executable) and a fix for the INSTALL
9196 [Ulf Moeller <ulf@fitug.de>]
9198 *) Remove some legacy and erroneous uses of malloc, free instead of
9200 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
9202 *) Make rsa_oaep_test return non-zero on error.
9203 [Ulf Moeller <ulf@fitug.de>]
9205 *) Add support for native Solaris shared libraries. Configure
9206 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
9207 if someone would make that last step automatic.
9208 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
9210 *) ctx_size was not built with the right compiler during "make links". Fixed.
9213 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
9214 except NULL ciphers". This means the default cipher list will no longer
9215 enable NULL ciphers. They need to be specifically enabled e.g. with
9216 the string "DEFAULT:eNULL".
9219 *) Fix to RSA private encryption routines: if p < q then it would
9220 occasionally produce an invalid result. This will only happen with
9221 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
9224 *) Be less restrictive and allow also `perl util/perlpath.pl
9225 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
9226 because this way one can also use an interpreter named `perl5' (which is
9227 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
9228 installed as `perl').
9229 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9231 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
9232 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9234 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
9235 advapi32.lib to Win32 build and change the pem test comparision
9236 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
9237 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
9238 and crypto/des/ede_cbcm_enc.c.
9241 *) DES quad checksum was broken on big-endian architectures. Fixed.
9244 *) Comment out two functions in bio.h that aren't implemented. Fix up the
9245 Win32 test batch file so it (might) work again. The Win32 test batch file
9246 is horrible: I feel ill....
9249 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
9250 in e_os.h. Audit of header files to check ANSI and non ANSI
9251 sections: 10 functions were absent from non ANSI section and not exported
9252 from Windows DLLs. Fixed up libeay.num for new functions.
9255 *) Make `openssl version' output lines consistent.
9256 [Ralf S. Engelschall]
9258 *) Fix Win32 symbol export lists for BIO functions: Added
9259 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9260 to ms/libeay{16,32}.def.
9261 [Ralf S. Engelschall]
9263 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9264 fine under Unix and passes some trivial tests I've now added. But the
9265 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9266 added to make sure no one expects that this stuff really works in the
9267 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9268 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9270 [Ralf S. Engelschall]
9272 *) Fix the generation of two part addresses in perl.
9273 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9275 *) Add config entry for Linux on MIPS.
9276 [John Tobey <jtobey@channel1.com>]
9278 *) Make links whenever Configure is run, unless we are on Windoze.
9281 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9282 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9286 *) Add a useful kludge to allow package maintainers to specify compiler and
9287 other platforms details on the command line without having to patch the
9288 Configure script everytime: One now can use ``perl Configure
9289 <id>:<details>'', i.e. platform ids are allowed to have details appended
9290 to them (seperated by colons). This is treated as there would be a static
9291 pre-configured entry in Configure's %table under key <id> with value
9292 <details> and ``perl Configure <id>'' is called. So, when you want to
9293 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9294 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9295 now, which overrides the FreeBSD-elf entry on-the-fly.
9296 [Ralf S. Engelschall]
9298 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9301 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9302 on the `perl Configure ...' command line. This way one can compile
9303 OpenSSL libraries with Position Independent Code (PIC) which is needed
9304 for linking it into DSOs.
9305 [Ralf S. Engelschall]
9307 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9311 *) Cleaned up the LICENSE document: The official contact for any license
9312 questions now is the OpenSSL core team under openssl-core@openssl.org.
9313 And add a paragraph about the dual-license situation to make sure people
9314 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9315 to the OpenSSL toolkit.
9316 [Ralf S. Engelschall]
9318 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9319 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9320 Additonally cleaned up the `make links' target: Remove unnecessary
9321 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9322 to speed processing and no longer clutter the display with confusing
9323 stuff. Instead only the actually done links are displayed.
9324 [Ralf S. Engelschall]
9326 *) Permit null encryption ciphersuites, used for authentication only. It used
9327 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9328 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9332 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9333 signed attributes when verifying signatures (this would break them),
9334 the detached data encoding was wrong and public keys obtained using
9335 X509_get_pubkey() weren't freed.
9338 *) Add text documentation for the BUFFER functions. Also added a work around
9339 to a Win95 console bug. This was triggered by the password read stuff: the
9340 last character typed gets carried over to the next fread(). If you were
9341 generating a new cert request using 'req' for example then the last
9342 character of the passphrase would be CR which would then enter the first
9346 *) Added the new `Includes OpenSSL Cryptography Software' button as
9347 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9348 button and can be used by applications based on OpenSSL to show the
9349 relationship to the OpenSSL project.
9350 [Ralf S. Engelschall]
9352 *) Remove confusing variables in function signatures in files
9353 ssl/ssl_lib.c and ssl/ssl.h.
9354 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9356 *) Don't install bss_file.c under PREFIX/include/
9357 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9359 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9360 functions that return function pointers and has support for NT specific
9361 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9362 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9363 unsigned to signed types: this was killing the Win32 compile.
9366 *) Add new certificate file to stack functions,
9367 SSL_add_dir_cert_subjects_to_stack() and
9368 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9369 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9370 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9371 This means that Apache-SSL and similar packages don't have to mess around
9372 to add as many CAs as they want to the preferred list.
9375 *) Experiment with doxygen documentation. Currently only partially applied to
9377 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9378 openssl.doxy as the configuration file.
9381 *) Get rid of remaining C++-style comments which strict C compilers hate.
9382 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9384 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9385 compiled in by default: it has problems with large keys.
9388 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9389 DH private keys and/or callback functions which directly correspond to
9390 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9391 is needed for applications which have to configure certificates on a
9392 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9394 For the RSA certificate situation is makes no difference, but
9395 for the DSA certificate situation this fixes the "no shared cipher"
9396 problem where the OpenSSL cipher selection procedure failed because the
9397 temporary keys were not overtaken from the context and the API provided
9398 no way to reconfigure them.
9399 The new functions now let applications reconfigure the stuff and they
9400 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9401 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9402 non-public-API function ssl_cert_instantiate() is used as a helper
9403 function and also to reduce code redundancy inside ssl_rsa.c.
9404 [Ralf S. Engelschall]
9406 *) Move s_server -dcert and -dkey options out of the undocumented feature
9407 area because they are useful for the DSA situation and should be
9408 recognized by the users.
9409 [Ralf S. Engelschall]
9411 *) Fix the cipher decision scheme for export ciphers: the export bits are
9412 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9413 SSL_EXP_MASK. So, the original variable has to be used instead of the
9414 already masked variable.
9415 [Richard Levitte <levitte@stacken.kth.se>]
9417 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9418 [Richard Levitte <levitte@stacken.kth.se>]
9420 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9421 from `int' to `unsigned int' because it's a length and initialized by
9422 EVP_DigestFinal() which expects an `unsigned int *'.
9423 [Richard Levitte <levitte@stacken.kth.se>]
9425 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9426 script. Instead use the usual Shell->Perl transition trick.
9427 [Ralf S. Engelschall]
9429 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9430 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9431 -noout -modulus' as it's already the case for `openssl rsa -noout
9432 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9433 currently the public key is printed (a decision which was already done by
9434 `openssl dsa -modulus' in the past) which serves a similar purpose.
9435 Additionally the NO_RSA no longer completely removes the whole -modulus
9436 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9438 [Ralf S. Engelschall]
9440 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9441 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9442 [Arne Ansper <arne@ats.cyber.ee>]
9444 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9445 to be added. Now both 'req' and 'ca' can use new objects defined in the
9449 *) Add cool BIO that does syslog (or event log on NT).
9450 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9452 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9453 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9454 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9455 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9458 *) Add preliminary config info for new extension code.
9461 *) Make RSA_NO_PADDING really use no padding.
9462 [Ulf Moeller <ulf@fitug.de>]
9464 *) Generate errors when private/public key check is done.
9467 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9468 for some CRL extensions and new objects added.
9471 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9472 key usage extension and fuller support for authority key id.
9475 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9476 padding method for RSA, which is recommended for new applications in PKCS
9477 #1 v2.0 (RFC 2437, October 1998).
9478 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9479 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9480 against Bleichbacher's attack on RSA.
9481 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9484 *) Updates to the new SSL compression code
9485 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9487 *) Fix so that the version number in the master secret, when passed
9488 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9489 (because the server will not accept higher), that the version number
9490 is 0x03,0x01, not 0x03,0x00
9491 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9493 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9494 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9495 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9498 *) Support for RAW extensions where an arbitrary extension can be
9499 created by including its DER encoding. See apps/openssl.cnf for
9503 *) Make sure latest Perl versions don't interpret some generated C array
9504 code as Perl array code in the crypto/err/err_genc.pl script.
9505 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9507 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9508 not many people have the assembler. Various Win32 compilation fixes and
9509 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9513 *) Modify configure script 'Configure' to automatically create crypto/date.h
9514 file under Win32 and also build pem.h from pem.org. New script
9515 util/mkfiles.pl to create the MINFO file on environments that can't do a
9516 'make files': perl util/mkfiles.pl >MINFO should work.
9519 *) Major rework of DES function declarations, in the pursuit of correctness
9520 and purity. As a result, many evil casts evaporated, and some weirdness,
9521 too. You may find this causes warnings in your code. Zapping your evil
9522 casts will probably fix them. Mostly.
9525 *) Fix for a typo in asn1.h. Bug fix to object creation script
9526 obj_dat.pl. It considered a zero in an object definition to mean
9527 "end of object": none of the objects in objects.h have any zeros
9528 so it wasn't spotted.
9529 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9531 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9532 Masking (CBCM). In the absence of test vectors, the best I have been able
9533 to do is check that the decrypt undoes the encrypt, so far. Send me test
9534 vectors if you have them.
9537 *) Correct calculation of key length for export ciphers (too much space was
9538 allocated for null ciphers). This has not been tested!
9541 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9542 message is now correct (it understands "crypto" and "ssl" on its
9543 command line). There is also now an "update" option. This will update
9544 the util/ssleay.num and util/libeay.num files with any new functions.
9546 perl util/mkdef.pl crypto ssl update
9547 it will update them.
9550 *) Overhauled the Perl interface (perl/*):
9551 - ported BN stuff to OpenSSL's different BN library
9552 - made the perl/ source tree CVS-aware
9553 - renamed the package from SSLeay to OpenSSL (the files still contain
9554 their history because I've copied them in the repository)
9555 - removed obsolete files (the test scripts will be replaced
9556 by better Test::Harness variants in the future)
9557 [Ralf S. Engelschall]
9559 *) First cut for a very conservative source tree cleanup:
9560 1. merge various obsolete readme texts into doc/ssleay.txt
9561 where we collect the old documents and readme texts.
9562 2. remove the first part of files where I'm already sure that we no
9563 longer need them because of three reasons: either they are just temporary
9564 files which were left by Eric or they are preserved original files where
9565 I've verified that the diff is also available in the CVS via "cvs diff
9566 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9567 the crypto/md/ stuff).
9568 [Ralf S. Engelschall]
9570 *) More extension code. Incomplete support for subject and issuer alt
9571 name, issuer and authority key id. Change the i2v function parameters
9572 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9573 what that's for :-) Fix to ASN1 macro which messed up
9574 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9577 *) Preliminary support for ENUMERATED type. This is largely copied from the
9581 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9582 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9584 *) Make sure `make rehash' target really finds the `openssl' program.
9585 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9587 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9588 like to hear about it if this slows down other processors.
9591 *) Add CygWin32 platform information to Configure script.
9592 [Alan Batie <batie@aahz.jf.intel.com>]
9594 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9595 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9597 *) New program nseq to manipulate netscape certificate sequences
9600 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9604 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9605 but the BN code had some problems that would cause failures when
9606 doing certificate verification and some other functions.
9607 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9609 *) Add ASN1 and PEM code to support netscape certificate sequences.
9612 *) Add ASN1 and PEM code to support netscape certificate sequences.
9615 *) Add several PKIX and private extended key usage OIDs.
9618 *) Modify the 'ca' program to handle the new extension code. Modify
9619 openssl.cnf for new extension format, add comments.
9622 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9623 and add a sample to openssl.cnf so req -x509 now adds appropriate
9627 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9628 error code, add initial support to X509_print() and x509 application.
9631 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9632 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9633 stuff is currently isolated and isn't even compiled yet.
9636 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9637 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9638 Removed the versions check from X509 routines when loading extensions:
9639 this allows certain broken certificates that don't set the version
9640 properly to be processed.
9643 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9644 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9645 can still be regenerated with "make depend".
9648 *) Spelling mistake in C version of CAST-128.
9649 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9651 *) Changes to the error generation code. The perl script err-code.pl
9652 now reads in the old error codes and retains the old numbers, only
9653 adding new ones if necessary. It also only changes the .err files if new
9654 codes are added. The makefiles have been modified to only insert errors
9655 when needed (to avoid needlessly modifying header files). This is done
9656 by only inserting errors if the .err file is newer than the auto generated
9657 C file. To rebuild all the error codes from scratch (the old behaviour)
9658 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9659 or delete all the .err files.
9662 *) CAST-128 was incorrectly implemented for short keys. The C version has
9663 been fixed, but is untested. The assembler versions are also fixed, but
9664 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9665 to regenerate it if needed.
9666 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9667 Hagino <itojun@kame.net>]
9669 *) File was opened incorrectly in randfile.c.
9670 [Ulf Möller <ulf@fitug.de>]
9672 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9673 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9674 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9675 al: it's just almost always a UTCTime. Note this patch adds new error
9676 codes so do a "make errors" if there are problems.
9679 *) Correct Linux 1 recognition in config.
9680 [Ulf Möller <ulf@fitug.de>]
9682 *) Remove pointless MD5 hash when using DSA keys in ca.
9683 [Anonymous <nobody@replay.com>]
9685 *) Generate an error if given an empty string as a cert directory. Also
9686 generate an error if handed NULL (previously returned 0 to indicate an
9687 error, but didn't set one).
9688 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9690 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9693 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9694 parameters. This was causing a warning which killed off the Win32 compile.
9697 *) Remove C++ style comments from crypto/bn/bn_local.h.
9698 [Neil Costigan <neil.costigan@celocom.com>]
9700 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9701 based on a text string, looking up short and long names and finally
9702 "dot" format. The "dot" format stuff didn't work. Added new function
9703 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9704 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9705 OID is not part of the table.
9708 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9709 X509_LOOKUP_by_alias().
9712 *) Sort openssl functions by name.
9715 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9716 encryption from sample DSA keys (in case anyone is interested the password
9720 *) Make _all_ *_free functions accept a NULL pointer.
9721 [Frans Heymans <fheymans@isaserver.be>]
9723 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9725 [Anonymous <nobody@replay.com>]
9727 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9728 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9730 *) Don't blow it for numeric -newkey arguments to apps/req.
9731 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9733 *) Temp key "for export" tests were wrong in s3_srvr.c.
9734 [Anonymous <nobody@replay.com>]
9736 *) Add prototype for temp key callback functions
9737 SSL_CTX_set_tmp_{rsa,dh}_callback().
9740 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9741 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9744 *) X509_name_add_entry() freed the wrong thing after an error.
9745 [Arne Ansper <arne@ats.cyber.ee>]
9747 *) rsa_eay.c would attempt to free a NULL context.
9748 [Arne Ansper <arne@ats.cyber.ee>]
9750 *) BIO_s_socket() had a broken should_retry() on Windoze.
9751 [Arne Ansper <arne@ats.cyber.ee>]
9753 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9754 [Arne Ansper <arne@ats.cyber.ee>]
9756 *) Make sure the already existing X509_STORE->depth variable is initialized
9757 in X509_STORE_new(), but document the fact that this variable is still
9758 unused in the certificate verification process.
9759 [Ralf S. Engelschall]
9761 *) Fix the various library and apps files to free up pkeys obtained from
9762 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9765 *) Fix reference counting in X509_PUBKEY_get(). This makes
9766 demos/maurice/example2.c work, amongst others, probably.
9767 [Steve Henson and Ben Laurie]
9769 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9770 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9771 are no longer created. This way we have a single and consistent command
9772 line interface `openssl <command>', similar to `cvs <command>'.
9773 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9775 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9776 BIT STRING wrapper always have zero unused bits.
9779 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9782 *) Make the top-level INSTALL documentation easier to understand.
9785 *) Makefiles updated to exit if an error occurs in a sub-directory
9786 make (including if user presses ^C) [Paul Sutton]
9788 *) Make Montgomery context stuff explicit in RSA data structure.
9791 *) Fix build order of pem and err to allow for generated pem.h.
9794 *) Fix renumbering bug in X509_NAME_delete_entry().
9797 *) Enhanced the err-ins.pl script so it makes the error library number
9798 global and can add a library name. This is needed for external ASN1 and
9799 other error libraries.
9802 *) Fixed sk_insert which never worked properly.
9805 *) Fix ASN1 macros so they can handle indefinite length construted
9806 EXPLICIT tags. Some non standard certificates use these: they can now
9810 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9811 into a single doc/ssleay.txt bundle. This way the information is still
9812 preserved but no longer messes up this directory. Now it's new room for
9813 the new set of documenation files.
9814 [Ralf S. Engelschall]
9816 *) SETs were incorrectly DER encoded. This was a major pain, because they
9817 shared code with SEQUENCEs, which aren't coded the same. This means that
9818 almost everything to do with SETs or SEQUENCEs has either changed name or
9819 number of arguments.
9820 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9822 *) Fix test data to work with the above.
9825 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9826 was already fixed by Eric for 0.9.1 it seems.
9827 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9829 *) Autodetect FreeBSD3.
9832 *) Fix various bugs in Configure. This affects the following platforms:
9836 unixware-2.0-pentium
9840 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9841 before they are needed.
9844 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9848 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9850 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9851 changed SSLeay to OpenSSL in version strings.
9852 [Ralf S. Engelschall]
9854 *) Some fixups to the top-level documents.
9857 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9858 because the symlink to include/ was missing.
9859 [Ralf S. Engelschall]
9861 *) Incorporated the popular no-RSA/DSA-only patches
9862 which allow to compile a RSA-free SSLeay.
9863 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9865 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9866 when "ssleay" is still not found.
9867 [Ralf S. Engelschall]
9869 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9870 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9872 *) Updated the README file.
9873 [Ralf S. Engelschall]
9875 *) Added various .cvsignore files in the CVS repository subdirs
9876 to make a "cvs update" really silent.
9877 [Ralf S. Engelschall]
9879 *) Recompiled the error-definition header files and added
9880 missing symbols to the Win32 linker tables.
9881 [Ralf S. Engelschall]
9883 *) Cleaned up the top-level documents;
9884 o new files: CHANGES and LICENSE
9885 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9886 o merged COPYRIGHT into LICENSE
9887 o removed obsolete TODO file
9888 o renamed MICROSOFT to INSTALL.W32
9889 [Ralf S. Engelschall]
9891 *) Removed dummy files from the 0.9.1b source tree:
9892 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9893 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9894 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9895 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9896 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9897 [Ralf S. Engelschall]
9899 *) Added various platform portability fixes.
9902 *) The Genesis of the OpenSSL rpject:
9903 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9904 Young and Tim J. Hudson created while they were working for C2Net until
9906 [The OpenSSL Project]
9909 Changes between 0.9.0b and 0.9.1b [not released]
9911 *) Updated a few CA certificates under certs/
9914 *) Changed some BIGNUM api stuff.
9917 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9918 DGUX x86, Linux Alpha, etc.
9921 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9922 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9926 *) Add -strparse option to asn1pars program which parses nested
9928 [Dr Stephen Henson <shenson@bigfoot.com>]
9930 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9933 *) DSA fix for "ca" program.
9936 *) Added "-genkey" option to "dsaparam" program.
9939 *) Added RIPE MD160 (rmd160) message digest.
9942 *) Added -a (all) option to "ssleay version" command.
9945 *) Added PLATFORM define which is the id given to Configure.
9948 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9951 *) Extended the ASN.1 parser routines.
9954 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9957 *) Added a BN_CTX to the BN library.
9960 *) Fixed the weak key values in DES library
9963 *) Changed API in EVP library for cipher aliases.
9966 *) Added support for RC2/64bit cipher.
9969 *) Converted the lhash library to the crypto/mem.c functions.
9972 *) Added more recognized ASN.1 object ids.
9975 *) Added more RSA padding checks for SSL/TLS.
9978 *) Added BIO proxy/filter functionality.
9981 *) Added extra_certs to SSL_CTX which can be used
9982 send extra CA certificates to the client in the CA cert chain sending
9983 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9986 *) Now Fortezza is denied in the authentication phase because
9987 this is key exchange mechanism is not supported by SSLeay at all.
9990 *) Additional PKCS1 checks.
9993 *) Support the string "TLSv1" for all TLS v1 ciphers.
9996 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
9997 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
10000 *) Fixed a few memory leaks.
10003 *) Fixed various code and comment typos.
10006 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
10007 bytes sent in the client random.
10008 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob