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 ssl_ciph.c set-up race.
491 [Adam Langley (Google)]
493 *) Fix spurious failures in ecdsatest.c.
494 [Emilia Käsper (Google)]
496 *) Fix the BIO_f_buffer() implementation (which was mixing different
497 interpretations of the '..._len' fields).
498 [Adam Langley (Google)]
500 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
501 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
502 threads won't reuse the same blinding coefficients.
504 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
505 lock to call BN_BLINDING_invert_ex, and avoids one use of
506 BN_BLINDING_update for each BN_BLINDING structure (previously,
507 the last update always remained unused).
508 [Emilia Käsper (Google)]
510 *) In ssl3_clear, preserve s3->init_extra along with s3->rbuf.
511 [Bob Buckholz (Google)]
513 Changes between 1.0.0d and 1.0.0e [6 Sep 2011]
515 *) Fix bug where CRLs with nextUpdate in the past are sometimes accepted
516 by initialising X509_STORE_CTX properly. (CVE-2011-3207)
517 [Kaspar Brand <ossl@velox.ch>]
519 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
520 for multi-threaded use of ECDH. (CVE-2011-3210)
521 [Adam Langley (Google)]
523 *) Fix x509_name_ex_d2i memory leak on bad inputs.
526 *) Remove hard coded ecdsaWithSHA1 signature tests in ssl code and check
527 signature public key algorithm by using OID xref utilities instead.
528 Before this you could only use some ECC ciphersuites with SHA1 only.
531 *) Add protection against ECDSA timing attacks as mentioned in the paper
532 by Billy Bob Brumley and Nicola Tuveri, see:
534 http://eprint.iacr.org/2011/232.pdf
536 [Billy Bob Brumley and Nicola Tuveri]
538 Changes between 1.0.0c and 1.0.0d [8 Feb 2011]
540 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
541 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
543 *) Fix bug in string printing code: if *any* escaping is enabled we must
544 escape the escape character (backslash) or the resulting string is
548 Changes between 1.0.0b and 1.0.0c [2 Dec 2010]
550 *) Disable code workaround for ancient and obsolete Netscape browsers
551 and servers: an attacker can use it in a ciphersuite downgrade attack.
552 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
555 *) Fixed J-PAKE implementation error, originally discovered by
556 Sebastien Martini, further info and confirmation from Stefan
557 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
560 Changes between 1.0.0a and 1.0.0b [16 Nov 2010]
562 *) Fix extension code to avoid race conditions which can result in a buffer
563 overrun vulnerability: resumed sessions must not be modified as they can
564 be shared by multiple threads. CVE-2010-3864
567 *) Fix WIN32 build system to correctly link an ENGINE directory into
571 Changes between 1.0.0 and 1.0.0a [01 Jun 2010]
573 *) Check return value of int_rsa_verify in pkey_rsa_verifyrecover
575 [Steve Henson, Peter-Michael Hager <hager@dortmund.net>]
577 Changes between 0.9.8n and 1.0.0 [29 Mar 2010]
579 *) Add "missing" function EVP_CIPHER_CTX_copy(). This copies a cipher
580 context. The operation can be customised via the ctrl mechanism in
581 case ENGINEs want to include additional functionality.
584 *) Tolerate yet another broken PKCS#8 key format: private key value negative.
587 *) Add new -subject_hash_old and -issuer_hash_old options to x509 utility to
588 output hashes compatible with older versions of OpenSSL.
589 [Willy Weisz <weisz@vcpc.univie.ac.at>]
591 *) Fix compression algorithm handling: if resuming a session use the
592 compression algorithm of the resumed session instead of determining
593 it from client hello again. Don't allow server to change algorithm.
596 *) Add load_crls() function to apps tidying load_certs() too. Add option
597 to verify utility to allow additional CRLs to be included.
600 *) Update OCSP request code to permit adding custom headers to the request:
601 some responders need this.
604 *) The function EVP_PKEY_sign() returns <=0 on error: check return code
606 [Julia Lawall <julia@diku.dk>]
608 *) Update verify callback code in apps/s_cb.c and apps/verify.c, it
609 needlessly dereferenced structures, used obsolete functions and
610 didn't handle all updated verify codes correctly.
613 *) Disable MD2 in the default configuration.
616 *) In BIO_pop() and BIO_push() use the ctrl argument (which was NULL) to
617 indicate the initial BIO being pushed or popped. This makes it possible
618 to determine whether the BIO is the one explicitly called or as a result
619 of the ctrl being passed down the chain. Fix BIO_pop() and SSL BIOs so
620 it handles reference counts correctly and doesn't zero out the I/O bio
621 when it is not being explicitly popped. WARNING: applications which
622 included workarounds for the old buggy behaviour will need to be modified
623 or they could free up already freed BIOs.
626 *) Extend the uni2asc/asc2uni => OPENSSL_uni2asc/OPENSSL_asc2uni
627 renaming to all platforms (within the 0.9.8 branch, this was
628 done conditionally on Netware platforms to avoid a name clash).
629 [Guenter <lists@gknw.net>]
631 *) Add ECDHE and PSK support to DTLS.
632 [Michael Tuexen <tuexen@fh-muenster.de>]
634 *) Add CHECKED_STACK_OF macro to safestack.h, otherwise safestack can't
638 *) Add "missing" function EVP_MD_flags() (without this the only way to
639 retrieve a digest flags is by accessing the structure directly. Update
640 EVP_MD_do_all*() and EVP_CIPHER_do_all*() to include the name a digest
641 or cipher is registered as in the "from" argument. Print out all
642 registered digests in the dgst usage message instead of manually
643 attempting to work them out.
646 *) If no SSLv2 ciphers are used don't use an SSLv2 compatible client hello:
647 this allows the use of compression and extensions. Change default cipher
648 string to remove SSLv2 ciphersuites. This effectively avoids ancient SSLv2
649 by default unless an application cipher string requests it.
652 *) Alter match criteria in PKCS12_parse(). It used to try to use local
653 key ids to find matching certificates and keys but some PKCS#12 files
654 don't follow the (somewhat unwritten) rules and this strategy fails.
655 Now just gather all certificates together and the first private key
656 then look for the first certificate that matches the key.
659 *) Support use of registered digest and cipher names for dgst and cipher
660 commands instead of having to add each one as a special case. So now
667 openssl dgst -sha256 foo
669 and this works for ENGINE based algorithms too.
673 *) Update Gost ENGINE to support parameter files.
674 [Victor B. Wagner <vitus@cryptocom.ru>]
676 *) Support GeneralizedTime in ca utility.
677 [Oliver Martin <oliver@volatilevoid.net>, Steve Henson]
679 *) Enhance the hash format used for certificate directory links. The new
680 form uses the canonical encoding (meaning equivalent names will work
681 even if they aren't identical) and uses SHA1 instead of MD5. This form
682 is incompatible with the older format and as a result c_rehash should
683 be used to rebuild symbolic links.
686 *) Make PKCS#8 the default write format for private keys, replacing the
687 traditional format. This form is standardised, more secure and doesn't
688 include an implicit MD5 dependency.
691 *) Add a $gcc_devteam_warn option to Configure. The idea is that any code
692 committed to OpenSSL should pass this lot as a minimum.
695 *) Add session ticket override functionality for use by EAP-FAST.
696 [Jouni Malinen <j@w1.fi>]
698 *) Modify HMAC functions to return a value. Since these can be implemented
699 in an ENGINE errors can occur.
702 *) Type-checked OBJ_bsearch_ex.
705 *) Type-checked OBJ_bsearch. Also some constification necessitated
706 by type-checking. Still to come: TXT_DB, bsearch(?),
707 OBJ_bsearch_ex, qsort, CRYPTO_EX_DATA, ASN1_VALUE, ASN1_STRING,
711 *) New function OPENSSL_gmtime_adj() to add a specific number of days and
712 seconds to a tm structure directly, instead of going through OS
713 specific date routines. This avoids any issues with OS routines such
714 as the year 2038 bug. New *_adj() functions for ASN1 time structures
715 and X509_time_adj_ex() to cover the extended range. The existing
716 X509_time_adj() is still usable and will no longer have any date issues.
719 *) Delta CRL support. New use deltas option which will attempt to locate
720 and search any appropriate delta CRLs available.
722 This work was sponsored by Google.
725 *) Support for CRLs partitioned by reason code. Reorganise CRL processing
726 code and add additional score elements. Validate alternate CRL paths
727 as part of the CRL checking and indicate a new error "CRL path validation
728 error" in this case. Applications wanting additional details can use
729 the verify callback and check the new "parent" field. If this is not
730 NULL CRL path validation is taking place. Existing applications wont
731 see this because it requires extended CRL support which is off by
734 This work was sponsored by Google.
737 *) Support for freshest CRL extension.
739 This work was sponsored by Google.
742 *) Initial indirect CRL support. Currently only supported in the CRLs
743 passed directly and not via lookup. Process certificate issuer
744 CRL entry extension and lookup CRL entries by bother issuer name
745 and serial number. Check and process CRL issuer entry in IDP extension.
747 This work was sponsored by Google.
750 *) Add support for distinct certificate and CRL paths. The CRL issuer
751 certificate is validated separately in this case. Only enabled if
752 an extended CRL support flag is set: this flag will enable additional
753 CRL functionality in future.
755 This work was sponsored by Google.
758 *) Add support for policy mappings extension.
760 This work was sponsored by Google.
763 *) Fixes to pathlength constraint, self issued certificate handling,
764 policy processing to align with RFC3280 and PKITS tests.
766 This work was sponsored by Google.
769 *) Support for name constraints certificate extension. DN, email, DNS
770 and URI types are currently supported.
772 This work was sponsored by Google.
775 *) To cater for systems that provide a pointer-based thread ID rather
776 than numeric, deprecate the current numeric thread ID mechanism and
777 replace it with a structure and associated callback type. This
778 mechanism allows a numeric "hash" to be extracted from a thread ID in
779 either case, and on platforms where pointers are larger than 'long',
780 mixing is done to help ensure the numeric 'hash' is usable even if it
781 can't be guaranteed unique. The default mechanism is to use "&errno"
782 as a pointer-based thread ID to distinguish between threads.
784 Applications that want to provide their own thread IDs should now use
785 CRYPTO_THREADID_set_callback() to register a callback that will call
786 either CRYPTO_THREADID_set_numeric() or CRYPTO_THREADID_set_pointer().
788 Note that ERR_remove_state() is now deprecated, because it is tied
789 to the assumption that thread IDs are numeric. ERR_remove_state(0)
790 to free the current thread's error state should be replaced by
791 ERR_remove_thread_state(NULL).
793 (This new approach replaces the functions CRYPTO_set_idptr_callback(),
794 CRYPTO_get_idptr_callback(), and CRYPTO_thread_idptr() that existed in
795 OpenSSL 0.9.9-dev between June 2006 and August 2008. Also, if an
796 application was previously providing a numeric thread callback that
797 was inappropriate for distinguishing threads, then uniqueness might
798 have been obtained with &errno that happened immediately in the
799 intermediate development versions of OpenSSL; this is no longer the
800 case, the numeric thread callback will now override the automatic use
802 [Geoff Thorpe, with help from Bodo Moeller]
804 *) Initial support for different CRL issuing certificates. This covers a
805 simple case where the self issued certificates in the chain exist and
806 the real CRL issuer is higher in the existing chain.
808 This work was sponsored by Google.
811 *) Removed effectively defunct crypto/store from the build.
814 *) Revamp of STACK to provide stronger type-checking. Still to come:
815 TXT_DB, bsearch(?), OBJ_bsearch, qsort, CRYPTO_EX_DATA, ASN1_VALUE,
816 ASN1_STRING, CONF_VALUE.
819 *) Add a new SSL_MODE_RELEASE_BUFFERS mode flag to release unused buffer
820 RAM on SSL connections. This option can save about 34k per idle SSL.
823 *) Revamp of LHASH to provide stronger type-checking. Still to come:
824 STACK, TXT_DB, bsearch, qsort.
827 *) Initial support for Cryptographic Message Syntax (aka CMS) based
828 on RFC3850, RFC3851 and RFC3852. New cms directory and cms utility,
829 support for data, signedData, compressedData, digestedData and
830 encryptedData, envelopedData types included. Scripts to check against
831 RFC4134 examples draft and interop and consistency checks of many
832 content types and variants.
835 *) Add options to enc utility to support use of zlib compression BIO.
838 *) Extend mk1mf to support importing of options and assembly language
839 files from Configure script, currently only included in VC-WIN32.
840 The assembly language rules can now optionally generate the source
841 files from the associated perl scripts.
844 *) Implement remaining functionality needed to support GOST ciphersuites.
845 Interop testing has been performed using CryptoPro implementations.
846 [Victor B. Wagner <vitus@cryptocom.ru>]
848 *) s390x assembler pack.
851 *) ARMv4 assembler pack. ARMv4 refers to v4 and later ISA, not CPU
855 *) Implement Opaque PRF Input TLS extension as specified in
856 draft-rescorla-tls-opaque-prf-input-00.txt. Since this is not an
857 official specification yet and no extension type assignment by
858 IANA exists, this extension (for now) will have to be explicitly
859 enabled when building OpenSSL by providing the extension number
860 to use. For example, specify an option
862 -DTLSEXT_TYPE_opaque_prf_input=0x9527
864 to the "config" or "Configure" script to enable the extension,
865 assuming extension number 0x9527 (which is a completely arbitrary
866 and unofficial assignment based on the MD5 hash of the Internet
867 Draft). Note that by doing so, you potentially lose
868 interoperability with other TLS implementations since these might
869 be using the same extension number for other purposes.
871 SSL_set_tlsext_opaque_prf_input(ssl, src, len) is used to set the
872 opaque PRF input value to use in the handshake. This will create
873 an interal copy of the length-'len' string at 'src', and will
874 return non-zero for success.
876 To get more control and flexibility, provide a callback function
879 SSL_CTX_set_tlsext_opaque_prf_input_callback(ctx, cb)
880 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg(ctx, arg)
884 int (*cb)(SSL *, void *peerinput, size_t len, void *arg);
887 Callback function 'cb' will be called in handshakes, and is
888 expected to use SSL_set_tlsext_opaque_prf_input() as appropriate.
889 Argument 'arg' is for application purposes (the value as given to
890 SSL_CTX_set_tlsext_opaque_prf_input_callback_arg() will directly
891 be provided to the callback function). The callback function
892 has to return non-zero to report success: usually 1 to use opaque
893 PRF input just if possible, or 2 to enforce use of the opaque PRF
894 input. In the latter case, the library will abort the handshake
895 if opaque PRF input is not successfully negotiated.
897 Arguments 'peerinput' and 'len' given to the callback function
898 will always be NULL and 0 in the case of a client. A server will
899 see the client's opaque PRF input through these variables if
900 available (NULL and 0 otherwise). Note that if the server
901 provides an opaque PRF input, the length must be the same as the
902 length of the client's opaque PRF input.
904 Note that the callback function will only be called when creating
905 a new session (session resumption can resume whatever was
906 previously negotiated), and will not be called in SSL 2.0
907 handshakes; thus, SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) or
908 SSL_set_options(ssl, SSL_OP_NO_SSLv2) is especially recommended
909 for applications that need to enforce opaque PRF input.
913 *) Update ssl code to support digests other than SHA1+MD5 for handshake
916 [Victor B. Wagner <vitus@cryptocom.ru>]
918 *) Add RFC4507 support to OpenSSL. This includes the corrections in
919 RFC4507bis. The encrypted ticket format is an encrypted encoded
920 SSL_SESSION structure, that way new session features are automatically
923 If a client application caches session in an SSL_SESSION structure
924 support is transparent because tickets are now stored in the encoded
927 The SSL_CTX structure automatically generates keys for ticket
928 protection in servers so again support should be possible
929 with no application modification.
931 If a client or server wishes to disable RFC4507 support then the option
932 SSL_OP_NO_TICKET can be set.
934 Add a TLS extension debugging callback to allow the contents of any client
935 or server extensions to be examined.
937 This work was sponsored by Google.
940 *) Final changes to avoid use of pointer pointer casts in OpenSSL.
941 OpenSSL should now compile cleanly on gcc 4.2
942 [Peter Hartley <pdh@utter.chaos.org.uk>, Steve Henson]
944 *) Update SSL library to use new EVP_PKEY MAC API. Include generic MAC
945 support including streaming MAC support: this is required for GOST
947 [Victor B. Wagner <vitus@cryptocom.ru>, Steve Henson]
949 *) Add option -stream to use PKCS#7 streaming in smime utility. New
950 function i2d_PKCS7_bio_stream() and PEM_write_PKCS7_bio_stream()
951 to output in BER and PEM format.
954 *) Experimental support for use of HMAC via EVP_PKEY interface. This
955 allows HMAC to be handled via the EVP_DigestSign*() interface. The
956 EVP_PKEY "key" in this case is the HMAC key, potentially allowing
957 ENGINE support for HMAC keys which are unextractable. New -mac and
958 -macopt options to dgst utility.
961 *) New option -sigopt to dgst utility. Update dgst to use
962 EVP_Digest{Sign,Verify}*. These two changes make it possible to use
963 alternative signing paramaters such as X9.31 or PSS in the dgst
967 *) Change ssl_cipher_apply_rule(), the internal function that does
968 the work each time a ciphersuite string requests enabling
969 ("foo+bar"), moving ("+foo+bar"), disabling ("-foo+bar", or
970 removing ("!foo+bar") a class of ciphersuites: Now it maintains
971 the order of disabled ciphersuites such that those ciphersuites
972 that most recently went from enabled to disabled not only stay
973 in order with respect to each other, but also have higher priority
974 than other disabled ciphersuites the next time ciphersuites are
977 This means that you can now say, e.g., "PSK:-PSK:HIGH" to enable
978 the same ciphersuites as with "HIGH" alone, but in a specific
979 order where the PSK ciphersuites come first (since they are the
980 most recently disabled ciphersuites when "HIGH" is parsed).
982 Also, change ssl_create_cipher_list() (using this new
983 funcionality) such that between otherwise identical
984 cihpersuites, ephemeral ECDH is preferred over ephemeral DH in
988 *) Change ssl_create_cipher_list() so that it automatically
989 arranges the ciphersuites in reasonable order before starting
990 to process the rule string. Thus, the definition for "DEFAULT"
991 (SSL_DEFAULT_CIPHER_LIST) now is just "ALL:!aNULL:!eNULL", but
992 remains equivalent to "AES:ALL:!aNULL:!eNULL:+aECDH:+kRSA:+RC4:@STRENGTH".
993 This makes it much easier to arrive at a reasonable default order
994 in applications for which anonymous ciphers are OK (meaning
995 that you can't actually use DEFAULT).
996 [Bodo Moeller; suggested by Victor Duchovni]
998 *) Split the SSL/TLS algorithm mask (as used for ciphersuite string
999 processing) into multiple integers instead of setting
1000 "SSL_MKEY_MASK" bits, "SSL_AUTH_MASK" bits, "SSL_ENC_MASK",
1001 "SSL_MAC_MASK", and "SSL_SSL_MASK" bits all in a single integer.
1002 (These masks as well as the individual bit definitions are hidden
1003 away into the non-exported interface ssl/ssl_locl.h, so this
1004 change to the definition of the SSL_CIPHER structure shouldn't
1005 affect applications.) This give us more bits for each of these
1006 categories, so there is no longer a need to coagulate AES128 and
1007 AES256 into a single algorithm bit, and to coagulate Camellia128
1008 and Camellia256 into a single algorithm bit, which has led to all
1011 Thus, among other things, the kludge introduced in 0.9.7m and
1012 0.9.8e for masking out AES256 independently of AES128 or masking
1013 out Camellia256 independently of AES256 is not needed here in 0.9.9.
1015 With the change, we also introduce new ciphersuite aliases that
1016 so far were missing: "AES128", "AES256", "CAMELLIA128", and
1020 *) Add support for dsa-with-SHA224 and dsa-with-SHA256.
1021 Use the leftmost N bytes of the signature input if the input is
1022 larger than the prime q (with N being the size in bytes of q).
1025 *) Very *very* experimental PKCS#7 streaming encoder support. Nothing uses
1026 it yet and it is largely untested.
1029 *) Add support for the ecdsa-with-SHA224/256/384/512 signature types.
1032 *) Initial incomplete changes to avoid need for function casts in OpenSSL
1033 some compilers (gcc 4.2 and later) reject their use. Safestack is
1034 reimplemented. Update ASN1 to avoid use of legacy functions.
1037 *) Win32/64 targets are linked with Winsock2.
1040 *) Add an X509_CRL_METHOD structure to allow CRL processing to be redirected
1041 to external functions. This can be used to increase CRL handling
1042 efficiency especially when CRLs are very large by (for example) storing
1043 the CRL revoked certificates in a database.
1046 *) Overhaul of by_dir code. Add support for dynamic loading of CRLs so
1047 new CRLs added to a directory can be used. New command line option
1048 -verify_return_error to s_client and s_server. This causes real errors
1049 to be returned by the verify callback instead of carrying on no matter
1050 what. This reflects the way a "real world" verify callback would behave.
1053 *) GOST engine, supporting several GOST algorithms and public key formats.
1054 Kindly donated by Cryptocom.
1057 *) Partial support for Issuing Distribution Point CRL extension. CRLs
1058 partitioned by DP are handled but no indirect CRL or reason partitioning
1059 (yet). Complete overhaul of CRL handling: now the most suitable CRL is
1060 selected via a scoring technique which handles IDP and AKID in CRLs.
1063 *) New X509_STORE_CTX callbacks lookup_crls() and lookup_certs() which
1064 will ultimately be used for all verify operations: this will remove the
1065 X509_STORE dependency on certificate verification and allow alternative
1066 lookup methods. X509_STORE based implementations of these two callbacks.
1069 *) Allow multiple CRLs to exist in an X509_STORE with matching issuer names.
1070 Modify get_crl() to find a valid (unexpired) CRL if possible.
1073 *) New function X509_CRL_match() to check if two CRLs are identical. Normally
1074 this would be called X509_CRL_cmp() but that name is already used by
1075 a function that just compares CRL issuer names. Cache several CRL
1076 extensions in X509_CRL structure and cache CRLDP in X509.
1079 *) Store a "canonical" representation of X509_NAME structure (ASN1 Name)
1080 this maps equivalent X509_NAME structures into a consistent structure.
1081 Name comparison can then be performed rapidly using memcmp().
1084 *) Non-blocking OCSP request processing. Add -timeout option to ocsp
1088 *) Allow digests to supply their own micalg string for S/MIME type using
1089 the ctrl EVP_MD_CTRL_MICALG.
1092 *) During PKCS7 signing pass the PKCS7 SignerInfo structure to the
1093 EVP_PKEY_METHOD before and after signing via the EVP_PKEY_CTRL_PKCS7_SIGN
1094 ctrl. It can then customise the structure before and/or after signing
1098 *) New function OBJ_add_sigid() to allow application defined signature OIDs
1099 to be added to OpenSSLs internal tables. New function OBJ_sigid_free()
1100 to free up any added signature OIDs.
1103 *) New functions EVP_CIPHER_do_all(), EVP_CIPHER_do_all_sorted(),
1104 EVP_MD_do_all() and EVP_MD_do_all_sorted() to enumerate internal
1105 digest and cipher tables. New options added to openssl utility:
1106 list-message-digest-algorithms and list-cipher-algorithms.
1109 *) Change the array representation of binary polynomials: the list
1110 of degrees of non-zero coefficients is now terminated with -1.
1111 Previously it was terminated with 0, which was also part of the
1112 value; thus, the array representation was not applicable to
1113 polynomials where t^0 has coefficient zero. This change makes
1114 the array representation useful in a more general context.
1117 *) Various modifications and fixes to SSL/TLS cipher string
1118 handling. For ECC, the code now distinguishes between fixed ECDH
1119 with RSA certificates on the one hand and with ECDSA certificates
1120 on the other hand, since these are separate ciphersuites. The
1121 unused code for Fortezza ciphersuites has been removed.
1123 For consistency with EDH, ephemeral ECDH is now called "EECDH"
1124 (not "ECDHE"). For consistency with the code for DH
1125 certificates, use of ECDH certificates is now considered ECDH
1126 authentication, not RSA or ECDSA authentication (the latter is
1127 merely the CA's signing algorithm and not actively used in the
1130 The temporary ciphersuite alias "ECCdraft" is no longer
1131 available, and ECC ciphersuites are no longer excluded from "ALL"
1132 and "DEFAULT". The following aliases now exist for RFC 4492
1133 ciphersuites, most of these by analogy with the DH case:
1135 kECDHr - ECDH cert, signed with RSA
1136 kECDHe - ECDH cert, signed with ECDSA
1137 kECDH - ECDH cert (signed with either RSA or ECDSA)
1138 kEECDH - ephemeral ECDH
1139 ECDH - ECDH cert or ephemeral ECDH
1145 AECDH - anonymous ECDH
1146 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
1150 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
1151 Use correct micalg parameters depending on digest(s) in signed message.
1154 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
1155 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
1158 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
1159 an engine to register a method. Add ENGINE lookups for methods and
1160 functional reference processing.
1163 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
1164 EVP_{Sign,Verify}* which allow an application to customise the signature
1168 *) New -resign option to smime utility. This adds one or more signers
1169 to an existing PKCS#7 signedData structure. Also -md option to use an
1170 alternative message digest algorithm for signing.
1173 *) Tidy up PKCS#7 routines and add new functions to make it easier to
1174 create PKCS7 structures containing multiple signers. Update smime
1175 application to support multiple signers.
1178 *) New -macalg option to pkcs12 utility to allow setting of an alternative
1182 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
1183 Reorganize PBE internals to lookup from a static table using NIDs,
1184 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
1185 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
1186 PRF which will be automatically used with PBES2.
1189 *) Replace the algorithm specific calls to generate keys in "req" with the
1193 *) Update PKCS#7 enveloped data routines to use new API. This is now
1194 supported by any public key method supporting the encrypt operation. A
1195 ctrl is added to allow the public key algorithm to examine or modify
1196 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
1200 *) Add a ctrl to asn1 method to allow a public key algorithm to express
1201 a default digest type to use. In most cases this will be SHA1 but some
1202 algorithms (such as GOST) need to specify an alternative digest. The
1203 return value indicates how strong the prefernce is 1 means optional and
1204 2 is mandatory (that is it is the only supported type). Modify
1205 ASN1_item_sign() to accept a NULL digest argument to indicate it should
1206 use the default md. Update openssl utilities to use the default digest
1207 type for signing if it is not explicitly indicated.
1210 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
1211 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
1212 signing method from the key type. This effectively removes the link
1213 between digests and public key types.
1216 *) Add an OID cross reference table and utility functions. Its purpose is to
1217 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
1218 rsaEncryption. This will allow some of the algorithm specific hackery
1219 needed to use the correct OID to be removed.
1222 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
1223 structures for PKCS7_sign(). They are now set up by the relevant public
1227 *) Add provisional EC pkey method with support for ECDSA and ECDH.
1230 *) Add support for key derivation (agreement) in the API, DH method and
1234 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
1235 public and private key formats. As a side effect these add additional
1236 command line functionality not previously available: DSA signatures can be
1237 generated and verified using pkeyutl and DH key support and generation in
1242 [Oliver Tappe <zooey@hirschkaefer.de>]
1244 *) New make target "install_html_docs" installs HTML renditions of the
1246 [Oliver Tappe <zooey@hirschkaefer.de>]
1248 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
1249 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
1250 support key and parameter generation and add initial key generation
1251 functionality for RSA.
1254 *) Add functions for main EVP_PKEY_method operations. The undocumented
1255 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
1256 EVP_PKEY_{encrypt,decrypt}_old.
1259 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
1260 key API, doesn't do much yet.
1263 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
1264 public key algorithms. New option to openssl utility:
1265 "list-public-key-algorithms" to print out info.
1268 *) Implement the Supported Elliptic Curves Extension for
1269 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1272 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
1273 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
1276 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
1277 utilities such as rsa, dsa, dsaparam etc except they process any key
1281 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
1282 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
1283 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
1287 *) Initial support for pluggable public key ASN1.
1288 De-spaghettify the public key ASN1 handling. Move public and private
1289 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
1290 algorithm specific handling to a single module within the relevant
1291 algorithm directory. Add functions to allow (near) opaque processing
1292 of public and private key structures.
1295 *) Implement the Supported Point Formats Extension for
1296 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
1299 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
1300 for the psk identity [hint] and the psk callback functions to the
1301 SSL_SESSION, SSL and SSL_CTX structure.
1304 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
1308 SSL_CTX_use_psk_identity_hint
1309 SSL_get_psk_identity_hint
1310 SSL_get_psk_identity
1311 SSL_use_psk_identity_hint
1313 [Mika Kousa and Pasi Eronen of Nokia Corporation]
1315 *) Add RFC 3161 compliant time stamp request creation, response generation
1316 and response verification functionality.
1317 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
1319 *) Add initial support for TLS extensions, specifically for the server_name
1320 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
1321 have new members for a host name. The SSL data structure has an
1322 additional member SSL_CTX *initial_ctx so that new sessions can be
1323 stored in that context to allow for session resumption, even after the
1324 SSL has been switched to a new SSL_CTX in reaction to a client's
1325 server_name extension.
1327 New functions (subject to change):
1329 SSL_get_servername()
1330 SSL_get_servername_type()
1333 New CTRL codes and macros (subject to change):
1335 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
1336 - SSL_CTX_set_tlsext_servername_callback()
1337 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
1338 - SSL_CTX_set_tlsext_servername_arg()
1339 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
1341 openssl s_client has a new '-servername ...' option.
1343 openssl s_server has new options '-servername_host ...', '-cert2 ...',
1344 '-key2 ...', '-servername_fatal' (subject to change). This allows
1345 testing the HostName extension for a specific single host name ('-cert'
1346 and '-key' remain fallbacks for handshakes without HostName
1347 negotiation). If the unrecogninzed_name alert has to be sent, this by
1348 default is a warning; it becomes fatal with the '-servername_fatal'
1351 [Peter Sylvester, Remy Allais, Christophe Renou]
1353 *) Whirlpool hash implementation is added.
1356 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
1357 bn(64,32). Because of instruction set limitations it doesn't have
1358 any negative impact on performance. This was done mostly in order
1359 to make it possible to share assembler modules, such as bn_mul_mont
1360 implementations, between 32- and 64-bit builds without hassle.
1363 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
1364 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
1368 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
1369 dedicated Montgomery multiplication procedure, is introduced.
1370 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
1371 "64-bit" performance on certain 32-bit targets.
1374 *) New option SSL_OP_NO_COMP to disable use of compression selectively
1375 in SSL structures. New SSL ctrl to set maximum send fragment size.
1376 Save memory by seeting the I/O buffer sizes dynamically instead of
1377 using the maximum available value.
1380 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
1381 in addition to the text details.
1384 *) Very, very preliminary EXPERIMENTAL support for printing of general
1385 ASN1 structures. This currently produces rather ugly output and doesn't
1386 handle several customised structures at all.
1389 *) Integrated support for PVK file format and some related formats such
1390 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
1391 these in the 'rsa' and 'dsa' utilities.
1394 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
1397 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
1398 place for the (very old) "NETSCAPE" format certificates which are now
1399 handled using new ASN1 code equivalents.
1402 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
1403 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
1404 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
1407 *) Modify CRL distribution points extension code to print out previously
1408 unsupported fields. Enhance extension setting code to allow setting of
1412 *) Add print and set support for Issuing Distribution Point CRL extension.
1415 *) Change 'Configure' script to enable Camellia by default.
1418 Changes between 0.9.8r and 0.9.8s [xx XXX xxxx]
1420 *) Fix ssl_ciph.c set-up race.
1421 [Adam Langley (Google)]
1423 *) Fix spurious failures in ecdsatest.c.
1424 [Emilia Käsper (Google)]
1426 *) Fix the BIO_f_buffer() implementation (which was mixing different
1427 interpretations of the '..._len' fields).
1428 [Adam Langley (Google)]
1430 *) Fix handling of BN_BLINDING: now BN_BLINDING_invert_ex (rather than
1431 BN_BLINDING_invert_ex) calls BN_BLINDING_update, ensuring that concurrent
1432 threads won't reuse the same blinding coefficients.
1434 This also avoids the need to obtain the CRYPTO_LOCK_RSA_BLINDING
1435 lock to call BN_BLINDING_invert_ex, and avoids one use of
1436 BN_BLINDING_update for each BN_BLINDING structure (previously,
1437 the last update always remained unused).
1438 [Emilia Käsper (Google)]
1440 *) Fix SSL memory handling for (EC)DH ciphersuites, in particular
1441 for multi-threaded use of ECDH.
1442 [Adam Langley (Google)]
1444 *) Fix x509_name_ex_d2i memory leak on bad inputs.
1447 *) Add protection against ECDSA timing attacks as mentioned in the paper
1448 by Billy Bob Brumley and Nicola Tuveri, see:
1450 http://eprint.iacr.org/2011/232.pdf
1452 [Billy Bob Brumley and Nicola Tuveri]
1454 Changes between 0.9.8q and 0.9.8r [8 Feb 2011]
1456 *) Fix parsing of OCSP stapling ClientHello extension. CVE-2011-0014
1457 [Neel Mehta, Adam Langley, Bodo Moeller (Google)]
1459 *) Fix bug in string printing code: if *any* escaping is enabled we must
1460 escape the escape character (backslash) or the resulting string is
1464 Changes between 0.9.8p and 0.9.8q [2 Dec 2010]
1466 *) Disable code workaround for ancient and obsolete Netscape browsers
1467 and servers: an attacker can use it in a ciphersuite downgrade attack.
1468 Thanks to Martin Rex for discovering this bug. CVE-2010-4180
1471 *) Fixed J-PAKE implementation error, originally discovered by
1472 Sebastien Martini, further info and confirmation from Stefan
1473 Arentz and Feng Hao. Note that this fix is a security fix. CVE-2010-4252
1476 Changes between 0.9.8o and 0.9.8p [16 Nov 2010]
1478 *) Fix extension code to avoid race conditions which can result in a buffer
1479 overrun vulnerability: resumed sessions must not be modified as they can
1480 be shared by multiple threads. CVE-2010-3864
1483 *) Fix for double free bug in ssl/s3_clnt.c CVE-2010-2939
1486 *) Don't reencode certificate when calculating signature: cache and use
1487 the original encoding instead. This makes signature verification of
1488 some broken encodings work correctly.
1491 *) ec2_GF2m_simple_mul bugfix: compute correct result if the output EC_POINT
1492 is also one of the inputs.
1493 [Emilia Käsper <emilia.kasper@esat.kuleuven.be> (Google)]
1495 *) Don't repeatedly append PBE algorithms to table if they already exist.
1496 Sort table on each new add. This effectively makes the table read only
1497 after all algorithms are added and subsequent calls to PKCS12_pbe_add
1501 Changes between 0.9.8n and 0.9.8o [01 Jun 2010]
1503 [NB: OpenSSL 0.9.8o and later 0.9.8 patch levels were released after
1506 *) Correct a typo in the CMS ASN1 module which can result in invalid memory
1507 access or freeing data twice (CVE-2010-0742)
1508 [Steve Henson, Ronald Moesbergen <intercommit@gmail.com>]
1510 *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
1511 common in certificates and some applications which only call
1512 SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
1516 Reduce copying into .apps and .test in makevms.com
1517 Don't try to use blank CA certificate in CA.com
1518 Allow use of C files from original directories in maketests.com
1519 [Steven M. Schweda" <sms@antinode.info>]
1521 Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
1523 *) When rejecting SSL/TLS records due to an incorrect version number, never
1524 update s->server with a new major version number. As of
1525 - OpenSSL 0.9.8m if 'short' is a 16-bit type,
1526 - OpenSSL 0.9.8f if 'short' is longer than 16 bits,
1527 the previous behavior could result in a read attempt at NULL when
1528 receiving specific incorrect SSL/TLS records once record payload
1529 protection is active. (CVE-2010-0740)
1530 [Bodo Moeller, Adam Langley <agl@chromium.org>]
1532 *) Fix for CVE-2010-0433 where some kerberos enabled versions of OpenSSL
1533 could be crashed if the relevant tables were not present (e.g. chrooted).
1534 [Tomas Hoger <thoger@redhat.com>]
1536 Changes between 0.9.8l and 0.9.8m [25 Feb 2010]
1538 *) Always check bn_wexpend() return values for failure. (CVE-2009-3245)
1539 [Martin Olsson, Neel Mehta]
1541 *) Fix X509_STORE locking: Every 'objs' access requires a lock (to
1542 accommodate for stack sorting, always a write lock!).
1545 *) On some versions of WIN32 Heap32Next is very slow. This can cause
1546 excessive delays in the RAND_poll(): over a minute. As a workaround
1547 include a time check in the inner Heap32Next loop too.
1550 *) The code that handled flushing of data in SSL/TLS originally used the
1551 BIO_CTRL_INFO ctrl to see if any data was pending first. This caused
1552 the problem outlined in PR#1949. The fix suggested there however can
1553 trigger problems with buggy BIO_CTRL_WPENDING (e.g. some versions
1554 of Apache). So instead simplify the code to flush unconditionally.
1555 This should be fine since flushing with no data to flush is a no op.
1558 *) Handle TLS versions 2.0 and later properly and correctly use the
1559 highest version of TLS/SSL supported. Although TLS >= 2.0 is some way
1560 off ancient servers have a habit of sticking around for a while...
1563 *) Modify compression code so it frees up structures without using the
1564 ex_data callbacks. This works around a problem where some applications
1565 call CRYPTO_cleanup_all_ex_data() before application exit (e.g. when
1566 restarting) then use compression (e.g. SSL with compression) later.
1567 This results in significant per-connection memory leaks and
1568 has caused some security issues including CVE-2008-1678 and
1572 *) Constify crypto/cast (i.e., <openssl/cast.h>): a CAST_KEY doesn't
1573 change when encrypting or decrypting.
1576 *) Add option SSL_OP_LEGACY_SERVER_CONNECT which will allow clients to
1577 connect and renegotiate with servers which do not support RI.
1578 Until RI is more widely deployed this option is enabled by default.
1581 *) Add "missing" ssl ctrls to clear options and mode.
1584 *) If client attempts to renegotiate and doesn't support RI respond with
1585 a no_renegotiation alert as required by RFC5746. Some renegotiating
1586 TLS clients will continue a connection gracefully when they receive
1587 the alert. Unfortunately OpenSSL mishandled this alert and would hang
1588 waiting for a server hello which it will never receive. Now we treat a
1589 received no_renegotiation alert as a fatal error. This is because
1590 applications requesting a renegotiation might well expect it to succeed
1591 and would have no code in place to handle the server denying it so the
1592 only safe thing to do is to terminate the connection.
1595 *) Add ctrl macro SSL_get_secure_renegotiation_support() which returns 1 if
1596 peer supports secure renegotiation and 0 otherwise. Print out peer
1597 renegotiation support in s_client/s_server.
1600 *) Replace the highly broken and deprecated SPKAC certification method with
1601 the updated NID creation version. This should correctly handle UTF8.
1604 *) Implement RFC5746. Re-enable renegotiation but require the extension
1605 as needed. Unfortunately, SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION
1606 turns out to be a bad idea. It has been replaced by
1607 SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION which can be set with
1608 SSL_CTX_set_options(). This is really not recommended unless you
1609 know what you are doing.
1610 [Eric Rescorla <ekr@networkresonance.com>, Ben Laurie, Steve Henson]
1612 *) Fixes to stateless session resumption handling. Use initial_ctx when
1613 issuing and attempting to decrypt tickets in case it has changed during
1614 servername handling. Use a non-zero length session ID when attempting
1615 stateless session resumption: this makes it possible to determine if
1616 a resumption has occurred immediately after receiving server hello
1617 (several places in OpenSSL subtly assume this) instead of later in
1621 *) The functions ENGINE_ctrl(), OPENSSL_isservice(),
1622 CMS_get1_RecipientRequest() and RAND_bytes() can return <=0 on error
1623 fixes for a few places where the return code is not checked
1625 [Julia Lawall <julia@diku.dk>]
1627 *) Add --strict-warnings option to Configure script to include devteam
1628 warnings in other configurations.
1631 *) Add support for --libdir option and LIBDIR variable in makefiles. This
1632 makes it possible to install openssl libraries in locations which
1633 have names other than "lib", for example "/usr/lib64" which some
1635 [Steve Henson, based on patch from Jeremy Utley]
1637 *) Don't allow the use of leading 0x80 in OIDs. This is a violation of
1638 X690 8.9.12 and can produce some misleading textual output of OIDs.
1639 [Steve Henson, reported by Dan Kaminsky]
1641 *) Delete MD2 from algorithm tables. This follows the recommendation in
1642 several standards that it is not used in new applications due to
1643 several cryptographic weaknesses. For binary compatibility reasons
1644 the MD2 API is still compiled in by default.
1647 *) Add compression id to {d2i,i2d}_SSL_SESSION so it is correctly saved
1651 *) Rename uni2asc and asc2uni functions to OPENSSL_uni2asc and
1652 OPENSSL_asc2uni conditionally on Netware platforms to avoid a name
1654 [Guenter <lists@gknw.net>]
1656 *) Fix the server certificate chain building code to use X509_verify_cert(),
1657 it used to have an ad-hoc builder which was unable to cope with anything
1658 other than a simple chain.
1659 [David Woodhouse <dwmw2@infradead.org>, Steve Henson]
1661 *) Don't check self signed certificate signatures in X509_verify_cert()
1662 by default (a flag can override this): it just wastes time without
1663 adding any security. As a useful side effect self signed root CAs
1664 with non-FIPS digests are now usable in FIPS mode.
1667 *) In dtls1_process_out_of_seq_message() the check if the current message
1668 is already buffered was missing. For every new message was memory
1669 allocated, allowing an attacker to perform an denial of service attack
1670 with sending out of seq handshake messages until there is no memory
1671 left. Additionally every future messege was buffered, even if the
1672 sequence number made no sense and would be part of another handshake.
1673 So only messages with sequence numbers less than 10 in advance will be
1674 buffered. (CVE-2009-1378)
1675 [Robin Seggelmann, discovered by Daniel Mentz]
1677 *) Records are buffered if they arrive with a future epoch to be
1678 processed after finishing the corresponding handshake. There is
1679 currently no limitation to this buffer allowing an attacker to perform
1680 a DOS attack with sending records with future epochs until there is no
1681 memory left. This patch adds the pqueue_size() function to detemine
1682 the size of a buffer and limits the record buffer to 100 entries.
1684 [Robin Seggelmann, discovered by Daniel Mentz]
1686 *) Keep a copy of frag->msg_header.frag_len so it can be used after the
1687 parent structure is freed. (CVE-2009-1379)
1690 *) Handle non-blocking I/O properly in SSL_shutdown() call.
1691 [Darryl Miles <darryl-mailinglists@netbauds.net>]
1694 [Ilya O. <vrghost@gmail.com>]
1696 Changes between 0.9.8k and 0.9.8l [5 Nov 2009]
1698 *) Disable renegotiation completely - this fixes a severe security
1699 problem (CVE-2009-3555) at the cost of breaking all
1700 renegotiation. Renegotiation can be re-enabled by setting
1701 SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION in s3->flags at
1702 run-time. This is really not recommended unless you know what
1706 Changes between 0.9.8j and 0.9.8k [25 Mar 2009]
1708 *) Don't set val to NULL when freeing up structures, it is freed up by
1709 underlying code. If sizeof(void *) > sizeof(long) this can result in
1710 zeroing past the valid field. (CVE-2009-0789)
1711 [Paolo Ganci <Paolo.Ganci@AdNovum.CH>]
1713 *) Fix bug where return value of CMS_SignerInfo_verify_content() was not
1714 checked correctly. This would allow some invalid signed attributes to
1715 appear to verify correctly. (CVE-2009-0591)
1716 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1718 *) Reject UniversalString and BMPString types with invalid lengths. This
1719 prevents a crash in ASN1_STRING_print_ex() which assumes the strings have
1720 a legal length. (CVE-2009-0590)
1723 *) Set S/MIME signing as the default purpose rather than setting it
1724 unconditionally. This allows applications to override it at the store
1728 *) Permit restricted recursion of ASN1 strings. This is needed in practice
1729 to handle some structures.
1732 *) Improve efficiency of mem_gets: don't search whole buffer each time
1734 [Jeremy Shapiro <jnshapir@us.ibm.com>]
1736 *) New -hex option for openssl rand.
1739 *) Print out UTF8String and NumericString when parsing ASN1.
1742 *) Support NumericString type for name components.
1745 *) Allow CC in the environment to override the automatically chosen
1746 compiler. Note that nothing is done to ensure flags work with the
1750 Changes between 0.9.8i and 0.9.8j [07 Jan 2009]
1752 *) Properly check EVP_VerifyFinal() and similar return values
1754 [Ben Laurie, Bodo Moeller, Google Security Team]
1756 *) Enable TLS extensions by default.
1759 *) Allow the CHIL engine to be loaded, whether the application is
1760 multithreaded or not. (This does not release the developer from the
1761 obligation to set up the dynamic locking callbacks.)
1762 [Sander Temme <sander@temme.net>]
1764 *) Use correct exit code if there is an error in dgst command.
1765 [Steve Henson; problem pointed out by Roland Dirlewanger]
1767 *) Tweak Configure so that you need to say "experimental-jpake" to enable
1768 JPAKE, and need to use -DOPENSSL_EXPERIMENTAL_JPAKE in applications.
1771 *) Add experimental JPAKE support, including demo authentication in
1772 s_client and s_server.
1775 *) Set the comparison function in v3_addr_canonize().
1776 [Rob Austein <sra@hactrn.net>]
1778 *) Add support for XMPP STARTTLS in s_client.
1779 [Philip Paeps <philip@freebsd.org>]
1781 *) Change the server-side SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG behavior
1782 to ensure that even with this option, only ciphersuites in the
1783 server's preference list will be accepted. (Note that the option
1784 applies only when resuming a session, so the earlier behavior was
1785 just about the algorithm choice for symmetric cryptography.)
1788 Changes between 0.9.8h and 0.9.8i [15 Sep 2008]
1790 *) Fix NULL pointer dereference if a DTLS server received
1791 ChangeCipherSpec as first record (CVE-2009-1386).
1794 *) Fix a state transitition in s3_srvr.c and d1_srvr.c
1795 (was using SSL3_ST_CW_CLNT_HELLO_B, should be ..._ST_SW_SRVR_...).
1798 *) The fix in 0.9.8c that supposedly got rid of unsafe
1799 double-checked locking was incomplete for RSA blinding,
1800 addressing just one layer of what turns out to have been
1801 doubly unsafe triple-checked locking.
1803 So now fix this for real by retiring the MONT_HELPER macro
1804 in crypto/rsa/rsa_eay.c.
1806 [Bodo Moeller; problem pointed out by Marius Schilder]
1808 *) Various precautionary measures:
1810 - Avoid size_t integer overflow in HASH_UPDATE (md32_common.h).
1812 - Avoid a buffer overflow in d2i_SSL_SESSION() (ssl_asn1.c).
1813 (NB: This would require knowledge of the secret session ticket key
1814 to exploit, in which case you'd be SOL either way.)
1816 - Change bn_nist.c so that it will properly handle input BIGNUMs
1817 outside the expected range.
1819 - Enforce the 'num' check in BN_div() (bn_div.c) for non-BN_DEBUG
1822 [Neel Mehta, Bodo Moeller]
1824 *) Allow engines to be "soft loaded" - i.e. optionally don't die if
1825 the load fails. Useful for distros.
1826 [Ben Laurie and the FreeBSD team]
1828 *) Add support for Local Machine Keyset attribute in PKCS#12 files.
1831 *) Fix BN_GF2m_mod_arr() top-bit cleanup code.
1834 *) Expand ENGINE to support engine supplied SSL client certificate functions.
1836 This work was sponsored by Logica.
1839 *) Add CryptoAPI ENGINE to support use of RSA and DSA keys held in Windows
1840 keystores. Support for SSL/TLS client authentication too.
1841 Not compiled unless enable-capieng specified to Configure.
1843 This work was sponsored by Logica.
1846 *) Fix bug in X509_ATTRIBUTE creation: dont set attribute using
1847 ASN1_TYPE_set1 if MBSTRING flag set. This bug would crash certain
1848 attribute creation routines such as certifcate requests and PKCS#12
1852 Changes between 0.9.8g and 0.9.8h [28 May 2008]
1854 *) Fix flaw if 'Server Key exchange message' is omitted from a TLS
1855 handshake which could lead to a cilent crash as found using the
1856 Codenomicon TLS test suite (CVE-2008-1672)
1857 [Steve Henson, Mark Cox]
1859 *) Fix double free in TLS server name extensions which could lead to
1860 a remote crash found by Codenomicon TLS test suite (CVE-2008-0891)
1863 *) Clear error queue in SSL_CTX_use_certificate_chain_file()
1865 Clear the error queue to ensure that error entries left from
1866 older function calls do not interfere with the correct operation.
1867 [Lutz Jaenicke, Erik de Castro Lopo]
1869 *) Remove root CA certificates of commercial CAs:
1871 The OpenSSL project does not recommend any specific CA and does not
1872 have any policy with respect to including or excluding any CA.
1873 Therefore it does not make any sense to ship an arbitrary selection
1874 of root CA certificates with the OpenSSL software.
1877 *) RSA OAEP patches to fix two separate invalid memory reads.
1878 The first one involves inputs when 'lzero' is greater than
1879 'SHA_DIGEST_LENGTH' (it would read about SHA_DIGEST_LENGTH bytes
1880 before the beginning of from). The second one involves inputs where
1881 the 'db' section contains nothing but zeroes (there is a one-byte
1882 invalid read after the end of 'db').
1883 [Ivan Nestlerode <inestlerode@us.ibm.com>]
1885 *) Partial backport from 0.9.9-dev:
1887 Introduce bn_mul_mont (dedicated Montgomery multiplication
1888 procedure) as a candidate for BIGNUM assembler implementation.
1889 While 0.9.9-dev uses assembler for various architectures, only
1890 x86_64 is available by default here in the 0.9.8 branch, and
1891 32-bit x86 is available through a compile-time setting.
1893 To try the 32-bit x86 assembler implementation, use Configure
1894 option "enable-montasm" (which exists only for this backport).
1896 As "enable-montasm" for 32-bit x86 disclaims code stability
1897 anyway, in this constellation we activate additional code
1898 backported from 0.9.9-dev for further performance improvements,
1899 namely BN_from_montgomery_word. (To enable this otherwise,
1900 e.g. x86_64, try "-DMONT_FROM_WORD___NON_DEFAULT_0_9_8_BUILD".)
1902 [Andy Polyakov (backport partially by Bodo Moeller)]
1904 *) Add TLS session ticket callback. This allows an application to set
1905 TLS ticket cipher and HMAC keys rather than relying on hardcoded fixed
1906 values. This is useful for key rollover for example where several key
1907 sets may exist with different names.
1910 *) Reverse ENGINE-internal logic for caching default ENGINE handles.
1911 This was broken until now in 0.9.8 releases, such that the only way
1912 a registered ENGINE could be used (assuming it initialises
1913 successfully on the host) was to explicitly set it as the default
1914 for the relevant algorithms. This is in contradiction with 0.9.7
1915 behaviour and the documentation. With this fix, when an ENGINE is
1916 registered into a given algorithm's table of implementations, the
1917 'uptodate' flag is reset so that auto-discovery will be used next
1918 time a new context for that algorithm attempts to select an
1920 [Ian Lister (tweaked by Geoff Thorpe)]
1922 *) Backport of CMS code to OpenSSL 0.9.8. This differs from the 0.9.9
1923 implemention in the following ways:
1925 Lack of EVP_PKEY_ASN1_METHOD means algorithm parameters have to be
1928 Lack of BER streaming support means one pass streaming processing is
1929 only supported if data is detached: setting the streaming flag is
1930 ignored for embedded content.
1932 CMS support is disabled by default and must be explicitly enabled
1933 with the enable-cms configuration option.
1936 *) Update the GMP engine glue to do direct copies between BIGNUM and
1937 mpz_t when openssl and GMP use the same limb size. Otherwise the
1938 existing "conversion via a text string export" trick is still used.
1939 [Paul Sheer <paulsheer@gmail.com>]
1941 *) Zlib compression BIO. This is a filter BIO which compressed and
1942 uncompresses any data passed through it.
1945 *) Add AES_wrap_key() and AES_unwrap_key() functions to implement
1946 RFC3394 compatible AES key wrapping.
1949 *) Add utility functions to handle ASN1 structures. ASN1_STRING_set0():
1950 sets string data without copying. X509_ALGOR_set0() and
1951 X509_ALGOR_get0(): set and retrieve X509_ALGOR (AlgorithmIdentifier)
1952 data. Attribute function X509at_get0_data_by_OBJ(): retrieves data
1953 from an X509_ATTRIBUTE structure optionally checking it occurs only
1954 once. ASN1_TYPE_set1(): set and ASN1_TYPE structure copying supplied
1958 *) Fix BN flag handling in RSA_eay_mod_exp() and BN_MONT_CTX_set()
1959 to get the expected BN_FLG_CONSTTIME behavior.
1960 [Bodo Moeller (Google)]
1964 - fixed wrong usage of ioctlsocket() when build for LIBC BSD sockets
1965 - fixed do_tests.pl to run the test suite with CLIB builds too (CLIB_OPT)
1966 - added some more tests to do_tests.pl
1967 - fixed RunningProcess usage so that it works with newer LIBC NDKs too
1968 - removed usage of BN_LLONG for CLIB builds to avoid runtime dependency
1969 - added new Configure targets netware-clib-bsdsock, netware-clib-gcc,
1970 netware-clib-bsdsock-gcc, netware-libc-bsdsock-gcc
1971 - various changes to netware.pl to enable gcc-cross builds on Win32
1973 - changed crypto/bio/b_sock.c to work with macro functions (CLIB BSD)
1974 - various changes to fix missing prototype warnings
1975 - fixed x86nasm.pl to create correct asm files for NASM COFF output
1976 - added AES, WHIRLPOOL and CPUID assembler code to build files
1977 - added missing AES assembler make rules to mk1mf.pl
1978 - fixed order of includes in apps/ocsp.c so that e_os.h settings apply
1979 [Guenter Knauf <eflash@gmx.net>]
1981 *) Implement certificate status request TLS extension defined in RFC3546.
1982 A client can set the appropriate parameters and receive the encoded
1983 OCSP response via a callback. A server can query the supplied parameters
1984 and set the encoded OCSP response in the callback. Add simplified examples
1985 to s_client and s_server.
1988 Changes between 0.9.8f and 0.9.8g [19 Oct 2007]
1990 *) Fix various bugs:
1991 + Binary incompatibility of ssl_ctx_st structure
1992 + DTLS interoperation with non-compliant servers
1993 + Don't call get_session_cb() without proposed session
1994 + Fix ia64 assembler code
1995 [Andy Polyakov, Steve Henson]
1997 Changes between 0.9.8e and 0.9.8f [11 Oct 2007]
1999 *) DTLS Handshake overhaul. There were longstanding issues with
2000 OpenSSL DTLS implementation, which were making it impossible for
2001 RFC 4347 compliant client to communicate with OpenSSL server.
2002 Unfortunately just fixing these incompatibilities would "cut off"
2003 pre-0.9.8f clients. To allow for hassle free upgrade post-0.9.8e
2004 server keeps tolerating non RFC compliant syntax. The opposite is
2005 not true, 0.9.8f client can not communicate with earlier server.
2006 This update even addresses CVE-2007-4995.
2009 *) Changes to avoid need for function casts in OpenSSL: some compilers
2010 (gcc 4.2 and later) reject their use.
2011 [Kurt Roeckx <kurt@roeckx.be>, Peter Hartley <pdh@utter.chaos.org.uk>,
2014 *) Add RFC4507 support to OpenSSL. This includes the corrections in
2015 RFC4507bis. The encrypted ticket format is an encrypted encoded
2016 SSL_SESSION structure, that way new session features are automatically
2019 If a client application caches session in an SSL_SESSION structure
2020 support is transparent because tickets are now stored in the encoded
2023 The SSL_CTX structure automatically generates keys for ticket
2024 protection in servers so again support should be possible
2025 with no application modification.
2027 If a client or server wishes to disable RFC4507 support then the option
2028 SSL_OP_NO_TICKET can be set.
2030 Add a TLS extension debugging callback to allow the contents of any client
2031 or server extensions to be examined.
2033 This work was sponsored by Google.
2036 *) Add initial support for TLS extensions, specifically for the server_name
2037 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
2038 have new members for a host name. The SSL data structure has an
2039 additional member SSL_CTX *initial_ctx so that new sessions can be
2040 stored in that context to allow for session resumption, even after the
2041 SSL has been switched to a new SSL_CTX in reaction to a client's
2042 server_name extension.
2044 New functions (subject to change):
2046 SSL_get_servername()
2047 SSL_get_servername_type()
2050 New CTRL codes and macros (subject to change):
2052 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
2053 - SSL_CTX_set_tlsext_servername_callback()
2054 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
2055 - SSL_CTX_set_tlsext_servername_arg()
2056 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_host_name()
2058 openssl s_client has a new '-servername ...' option.
2060 openssl s_server has new options '-servername_host ...', '-cert2 ...',
2061 '-key2 ...', '-servername_fatal' (subject to change). This allows
2062 testing the HostName extension for a specific single host name ('-cert'
2063 and '-key' remain fallbacks for handshakes without HostName
2064 negotiation). If the unrecogninzed_name alert has to be sent, this by
2065 default is a warning; it becomes fatal with the '-servername_fatal'
2068 [Peter Sylvester, Remy Allais, Christophe Renou, Steve Henson]
2070 *) Add AES and SSE2 assembly language support to VC++ build.
2073 *) Mitigate attack on final subtraction in Montgomery reduction.
2076 *) Fix crypto/ec/ec_mult.c to work properly with scalars of value 0
2077 (which previously caused an internal error).
2080 *) Squeeze another 10% out of IGE mode when in != out.
2083 *) AES IGE mode speedup.
2084 [Dean Gaudet (Google)]
2086 *) Add the Korean symmetric 128-bit cipher SEED (see
2087 http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp) and
2088 add SEED ciphersuites from RFC 4162:
2090 TLS_RSA_WITH_SEED_CBC_SHA = "SEED-SHA"
2091 TLS_DHE_DSS_WITH_SEED_CBC_SHA = "DHE-DSS-SEED-SHA"
2092 TLS_DHE_RSA_WITH_SEED_CBC_SHA = "DHE-RSA-SEED-SHA"
2093 TLS_DH_anon_WITH_SEED_CBC_SHA = "ADH-SEED-SHA"
2095 To minimize changes between patchlevels in the OpenSSL 0.9.8
2096 series, SEED remains excluded from compilation unless OpenSSL
2097 is configured with 'enable-seed'.
2098 [KISA, Bodo Moeller]
2100 *) Mitigate branch prediction attacks, which can be practical if a
2101 single processor is shared, allowing a spy process to extract
2102 information. For detailed background information, see
2103 http://eprint.iacr.org/2007/039 (O. Aciicmez, S. Gueron,
2104 J.-P. Seifert, "New Branch Prediction Vulnerabilities in OpenSSL
2105 and Necessary Software Countermeasures"). The core of the change
2106 are new versions BN_div_no_branch() and
2107 BN_mod_inverse_no_branch() of BN_div() and BN_mod_inverse(),
2108 respectively, which are slower, but avoid the security-relevant
2109 conditional branches. These are automatically called by BN_div()
2110 and BN_mod_inverse() if the flag BN_FLG_CONSTTIME is set for one
2111 of the input BIGNUMs. Also, BN_is_bit_set() has been changed to
2112 remove a conditional branch.
2114 BN_FLG_CONSTTIME is the new name for the previous
2115 BN_FLG_EXP_CONSTTIME flag, since it now affects more than just
2116 modular exponentiation. (Since OpenSSL 0.9.7h, setting this flag
2117 in the exponent causes BN_mod_exp_mont() to use the alternative
2118 implementation in BN_mod_exp_mont_consttime().) The old name
2119 remains as a deprecated alias.
2121 Similary, RSA_FLAG_NO_EXP_CONSTTIME is replaced by a more general
2122 RSA_FLAG_NO_CONSTTIME flag since the RSA implementation now uses
2123 constant-time implementations for more than just exponentiation.
2124 Here too the old name is kept as a deprecated alias.
2126 BN_BLINDING_new() will now use BN_dup() for the modulus so that
2127 the BN_BLINDING structure gets an independent copy of the
2128 modulus. This means that the previous "BIGNUM *m" argument to
2129 BN_BLINDING_new() and to BN_BLINDING_create_param() now
2130 essentially becomes "const BIGNUM *m", although we can't actually
2131 change this in the header file before 0.9.9. It allows
2132 RSA_setup_blinding() to use BN_with_flags() on the modulus to
2133 enable BN_FLG_CONSTTIME.
2135 [Matthew D Wood (Intel Corp)]
2137 *) In the SSL/TLS server implementation, be strict about session ID
2138 context matching (which matters if an application uses a single
2139 external cache for different purposes). Previously,
2140 out-of-context reuse was forbidden only if SSL_VERIFY_PEER was
2141 set. This did ensure strict client verification, but meant that,
2142 with applications using a single external cache for quite
2143 different requirements, clients could circumvent ciphersuite
2144 restrictions for a given session ID context by starting a session
2145 in a different context.
2148 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
2149 a ciphersuite string such as "DEFAULT:RSA" cannot enable
2150 authentication-only ciphersuites.
2153 *) Update the SSL_get_shared_ciphers() fix CVE-2006-3738 which was
2154 not complete and could lead to a possible single byte overflow
2155 (CVE-2007-5135) [Ben Laurie]
2157 Changes between 0.9.8d and 0.9.8e [23 Feb 2007]
2159 *) Since AES128 and AES256 (and similarly Camellia128 and
2160 Camellia256) share a single mask bit in the logic of
2161 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
2162 kludge to work properly if AES128 is available and AES256 isn't
2163 (or if Camellia128 is available and Camellia256 isn't).
2166 *) Fix the BIT STRING encoding generated by crypto/ec/ec_asn1.c
2167 (within i2d_ECPrivateKey, i2d_ECPKParameters, i2d_ECParameters):
2168 When a point or a seed is encoded in a BIT STRING, we need to
2169 prevent the removal of trailing zero bits to get the proper DER
2170 encoding. (By default, crypto/asn1/a_bitstr.c assumes the case
2171 of a NamedBitList, for which trailing 0 bits need to be removed.)
2174 *) Have SSL/TLS server implementation tolerate "mismatched" record
2175 protocol version while receiving ClientHello even if the
2176 ClientHello is fragmented. (The server can't insist on the
2177 particular protocol version it has chosen before the ServerHello
2178 message has informed the client about his choice.)
2181 *) Add RFC 3779 support.
2182 [Rob Austein for ARIN, Ben Laurie]
2184 *) Load error codes if they are not already present instead of using a
2185 static variable. This allows them to be cleanly unloaded and reloaded.
2186 Improve header file function name parsing.
2189 *) extend SMTP and IMAP protocol emulation in s_client to use EHLO
2190 or CAPABILITY handshake as required by RFCs.
2193 Changes between 0.9.8c and 0.9.8d [28 Sep 2006]
2195 *) Introduce limits to prevent malicious keys being able to
2196 cause a denial of service. (CVE-2006-2940)
2197 [Steve Henson, Bodo Moeller]
2199 *) Fix ASN.1 parsing of certain invalid structures that can result
2200 in a denial of service. (CVE-2006-2937) [Steve Henson]
2202 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
2203 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
2205 *) Fix SSL client code which could crash if connecting to a
2206 malicious SSLv2 server. (CVE-2006-4343)
2207 [Tavis Ormandy and Will Drewry, Google Security Team]
2209 *) Since 0.9.8b, ciphersuite strings naming explicit ciphersuites
2210 match only those. Before that, "AES256-SHA" would be interpreted
2211 as a pattern and match "AES128-SHA" too (since AES128-SHA got
2212 the same strength classification in 0.9.7h) as we currently only
2213 have a single AES bit in the ciphersuite description bitmap.
2214 That change, however, also applied to ciphersuite strings such as
2215 "RC4-MD5" that intentionally matched multiple ciphersuites --
2216 namely, SSL 2.0 ciphersuites in addition to the more common ones
2217 from SSL 3.0/TLS 1.0.
2219 So we change the selection algorithm again: Naming an explicit
2220 ciphersuite selects this one ciphersuite, and any other similar
2221 ciphersuite (same bitmap) from *other* protocol versions.
2222 Thus, "RC4-MD5" again will properly select both the SSL 2.0
2223 ciphersuite and the SSL 3.0/TLS 1.0 ciphersuite.
2225 Since SSL 2.0 does not have any ciphersuites for which the
2226 128/256 bit distinction would be relevant, this works for now.
2227 The proper fix will be to use different bits for AES128 and
2228 AES256, which would have avoided the problems from the beginning;
2229 however, bits are scarce, so we can only do this in a new release
2230 (not just a patchlevel) when we can change the SSL_CIPHER
2231 definition to split the single 'unsigned long mask' bitmap into
2232 multiple values to extend the available space.
2236 Changes between 0.9.8b and 0.9.8c [05 Sep 2006]
2238 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
2239 (CVE-2006-4339) [Ben Laurie and Google Security Team]
2241 *) Add AES IGE and biIGE modes.
2244 *) Change the Unix randomness entropy gathering to use poll() when
2245 possible instead of select(), since the latter has some
2246 undesirable limitations.
2247 [Darryl Miles via Richard Levitte and Bodo Moeller]
2249 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
2250 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
2251 cannot be implicitly activated as part of, e.g., the "AES" alias.
2252 However, please upgrade to OpenSSL 0.9.9[-dev] for
2253 non-experimental use of the ECC ciphersuites to get TLS extension
2254 support, which is required for curve and point format negotiation
2255 to avoid potential handshake problems.
2258 *) Disable rogue ciphersuites:
2260 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
2261 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
2262 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
2264 The latter two were purportedly from
2265 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
2268 Also deactivate the remaining ciphersuites from
2269 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
2270 unofficial, and the ID has long expired.
2273 *) Fix RSA blinding Heisenbug (problems sometimes occured on
2274 dual-core machines) and other potential thread-safety issues.
2277 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
2278 versions), which is now available for royalty-free use
2279 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
2280 Also, add Camellia TLS ciphersuites from RFC 4132.
2282 To minimize changes between patchlevels in the OpenSSL 0.9.8
2283 series, Camellia remains excluded from compilation unless OpenSSL
2284 is configured with 'enable-camellia'.
2287 *) Disable the padding bug check when compression is in use. The padding
2288 bug check assumes the first packet is of even length, this is not
2289 necessarily true if compresssion is enabled and can result in false
2290 positives causing handshake failure. The actual bug test is ancient
2291 code so it is hoped that implementations will either have fixed it by
2292 now or any which still have the bug do not support compression.
2295 Changes between 0.9.8a and 0.9.8b [04 May 2006]
2297 *) When applying a cipher rule check to see if string match is an explicit
2298 cipher suite and only match that one cipher suite if it is.
2301 *) Link in manifests for VC++ if needed.
2302 [Austin Ziegler <halostatue@gmail.com>]
2304 *) Update support for ECC-based TLS ciphersuites according to
2305 draft-ietf-tls-ecc-12.txt with proposed changes (but without
2306 TLS extensions, which are supported starting with the 0.9.9
2307 branch, not in the OpenSSL 0.9.8 branch).
2310 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
2311 opaque EVP_CIPHER_CTX handling.
2314 *) Fixes and enhancements to zlib compression code. We now only use
2315 "zlib1.dll" and use the default __cdecl calling convention on Win32
2316 to conform with the standards mentioned here:
2317 http://www.zlib.net/DLL_FAQ.txt
2318 Static zlib linking now works on Windows and the new --with-zlib-include
2319 --with-zlib-lib options to Configure can be used to supply the location
2320 of the headers and library. Gracefully handle case where zlib library
2324 *) Several fixes and enhancements to the OID generation code. The old code
2325 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
2326 handle numbers larger than ULONG_MAX, truncated printing and had a
2327 non standard OBJ_obj2txt() behaviour.
2330 *) Add support for building of engines under engine/ as shared libraries
2331 under VC++ build system.
2334 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
2335 Hopefully, we will not see any false combination of paths any more.
2338 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
2340 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
2341 (part of SSL_OP_ALL). This option used to disable the
2342 countermeasure against man-in-the-middle protocol-version
2343 rollback in the SSL 2.0 server implementation, which is a bad
2344 idea. (CVE-2005-2969)
2346 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
2347 for Information Security, National Institute of Advanced Industrial
2348 Science and Technology [AIST], Japan)]
2350 *) Add two function to clear and return the verify parameter flags.
2353 *) Keep cipherlists sorted in the source instead of sorting them at
2354 runtime, thus removing the need for a lock.
2357 *) Avoid some small subgroup attacks in Diffie-Hellman.
2358 [Nick Mathewson and Ben Laurie]
2360 *) Add functions for well-known primes.
2363 *) Extended Windows CE support.
2364 [Satoshi Nakamura and Andy Polyakov]
2366 *) Initialize SSL_METHOD structures at compile time instead of during
2367 runtime, thus removing the need for a lock.
2370 *) Make PKCS7_decrypt() work even if no certificate is supplied by
2371 attempting to decrypt each encrypted key in turn. Add support to
2375 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
2377 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
2380 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
2383 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
2384 key into the same file any more.
2387 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
2390 *) Add -utf8 command line and config file option to 'ca'.
2391 [Stefan <stf@udoma.org]
2393 *) Removed the macro des_crypt(), as it seems to conflict with some
2394 libraries. Use DES_crypt().
2397 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
2398 involves renaming the source and generated shared-libs for
2399 both. The engines will accept the corrected or legacy ids
2400 ('ncipher' and '4758_cca' respectively) when binding. NB,
2401 this only applies when building 'shared'.
2402 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
2404 *) Add attribute functions to EVP_PKEY structure. Modify
2405 PKCS12_create() to recognize a CSP name attribute and
2406 use it. Make -CSP option work again in pkcs12 utility.
2409 *) Add new functionality to the bn blinding code:
2410 - automatic re-creation of the BN_BLINDING parameters after
2411 a fixed number of uses (currently 32)
2412 - add new function for parameter creation
2413 - introduce flags to control the update behaviour of the
2414 BN_BLINDING parameters
2415 - hide BN_BLINDING structure
2416 Add a second BN_BLINDING slot to the RSA structure to improve
2417 performance when a single RSA object is shared among several
2421 *) Add support for DTLS.
2422 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
2424 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
2425 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
2428 *) Remove buggy and incompletet DH cert support from
2429 ssl/ssl_rsa.c and ssl/s3_both.c
2432 *) Use SHA-1 instead of MD5 as the default digest algorithm for
2433 the apps/openssl applications.
2436 *) Compile clean with "-Wall -Wmissing-prototypes
2437 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
2438 DEBUG_SAFESTACK must also be set.
2441 *) Change ./Configure so that certain algorithms can be disabled by default.
2442 The new counterpiece to "no-xxx" is "enable-xxx".
2444 The patented RC5 and MDC2 algorithms will now be disabled unless
2445 "enable-rc5" and "enable-mdc2", respectively, are specified.
2447 (IDEA remains enabled despite being patented. This is because IDEA
2448 is frequently required for interoperability, and there is no license
2449 fee for non-commercial use. As before, "no-idea" can be used to
2450 avoid this algorithm.)
2454 *) Add processing of proxy certificates (see RFC 3820). This work was
2455 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
2456 EGEE (Enabling Grids for E-science in Europe).
2459 *) RC4 performance overhaul on modern architectures/implementations, such
2460 as Intel P4, IA-64 and AMD64.
2463 *) New utility extract-section.pl. This can be used specify an alternative
2464 section number in a pod file instead of having to treat each file as
2465 a separate case in Makefile. This can be done by adding two lines to the
2468 =for comment openssl_section:XXX
2470 The blank line is mandatory.
2474 *) New arguments -certform, -keyform and -pass for s_client and s_server
2475 to allow alternative format key and certificate files and passphrase
2479 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
2480 update associated structures and add various utility functions.
2482 Add new policy related verify parameters, include policy checking in
2483 standard verify code. Enhance 'smime' application with extra parameters
2484 to support policy checking and print out.
2487 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
2488 Nehemiah processors. These extensions support AES encryption in hardware
2489 as well as RNG (though RNG support is currently disabled).
2490 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
2492 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
2495 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
2496 [Andy Polyakov and a number of other people]
2498 *) Improved PowerPC platform support. Most notably BIGNUM assembler
2499 implementation contributed by IBM.
2500 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
2502 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
2503 exponent rather than 'unsigned long'. There is a corresponding change to
2504 the new 'rsa_keygen' element of the RSA_METHOD structure.
2505 [Jelte Jansen, Geoff Thorpe]
2507 *) Functionality for creating the initial serial number file is now
2508 moved from CA.pl to the 'ca' utility with a new option -create_serial.
2510 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
2511 number file to 1, which is bound to cause problems. To avoid
2512 the problems while respecting compatibility between different 0.9.7
2513 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
2514 CA.pl for serial number initialization. With the new release 0.9.8,
2515 we can fix the problem directly in the 'ca' utility.)
2518 *) Reduced header interdepencies by declaring more opaque objects in
2519 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
2520 give fewer recursive includes, which could break lazy source code - so
2521 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
2522 developers should define this symbol when building and using openssl to
2523 ensure they track the recommended behaviour, interfaces, [etc], but
2524 backwards-compatible behaviour prevails when this isn't defined.
2527 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
2530 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
2531 This will generate a random key of the appropriate length based on the
2532 cipher context. The EVP_CIPHER can provide its own random key generation
2533 routine to support keys of a specific form. This is used in the des and
2534 3des routines to generate a key of the correct parity. Update S/MIME
2535 code to use new functions and hence generate correct parity DES keys.
2536 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
2537 valid (weak or incorrect parity).
2540 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
2541 as looking them up. This is useful when the verified structure may contain
2542 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
2543 present unless the new PKCS7_NO_CRL flag is asserted.
2546 *) Extend ASN1 oid configuration module. It now additionally accepts the
2549 shortName = some long name, 1.2.3.4
2552 *) Reimplemented the BN_CTX implementation. There is now no more static
2553 limitation on the number of variables it can handle nor the depth of the
2554 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
2555 information can now expand as required, and rather than having a single
2556 static array of bignums, BN_CTX now uses a linked-list of such arrays
2557 allowing it to expand on demand whilst maintaining the usefulness of
2558 BN_CTX's "bundling".
2561 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
2562 to allow all RSA operations to function using a single BN_CTX.
2565 *) Preliminary support for certificate policy evaluation and checking. This
2566 is initially intended to pass the tests outlined in "Conformance Testing
2567 of Relying Party Client Certificate Path Processing Logic" v1.07.
2570 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
2571 remained unused and not that useful. A variety of other little bignum
2572 tweaks and fixes have also been made continuing on from the audit (see
2576 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
2577 associated ASN1, EVP and SSL functions and old ASN1 macros.
2580 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
2581 and this should never fail. So the return value from the use of
2582 BN_set_word() (which can fail due to needless expansion) is now deprecated;
2583 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
2586 *) BN_CTX_get() should return zero-valued bignums, providing the same
2587 initialised value as BN_new().
2588 [Geoff Thorpe, suggested by Ulf Möller]
2590 *) Support for inhibitAnyPolicy certificate extension.
2593 *) An audit of the BIGNUM code is underway, for which debugging code is
2594 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
2595 is considered valid when processing BIGNUMs, and causes execution to
2596 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
2597 further steps are taken to deliberately pollute unused data in BIGNUM
2598 structures to try and expose faulty code further on. For now, openssl will
2599 (in its default mode of operation) continue to tolerate the inconsistent
2600 forms that it has tolerated in the past, but authors and packagers should
2601 consider trying openssl and their own applications when compiled with
2602 these debugging symbols defined. It will help highlight potential bugs in
2603 their own code, and will improve the test coverage for OpenSSL itself. At
2604 some point, these tighter rules will become openssl's default to improve
2605 maintainability, though the assert()s and other overheads will remain only
2606 in debugging configurations. See bn.h for more details.
2607 [Geoff Thorpe, Nils Larsch, Ulf Möller]
2609 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
2610 that can only be obtained through BN_CTX_new() (which implicitly
2611 initialises it). The presence of this function only made it possible
2612 to overwrite an existing structure (and cause memory leaks).
2615 *) Because of the callback-based approach for implementing LHASH as a
2616 template type, lh_insert() adds opaque objects to hash-tables and
2617 lh_doall() or lh_doall_arg() are typically used with a destructor callback
2618 to clean up those corresponding objects before destroying the hash table
2619 (and losing the object pointers). So some over-zealous constifications in
2620 LHASH have been relaxed so that lh_insert() does not take (nor store) the
2621 objects as "const" and the lh_doall[_arg] callback wrappers are not
2622 prototyped to have "const" restrictions on the object pointers they are
2623 given (and so aren't required to cast them away any more).
2626 *) The tmdiff.h API was so ugly and minimal that our own timing utility
2627 (speed) prefers to use its own implementation. The two implementations
2628 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
2629 its object type properly exposed (MS_TM) instead of casting to/from "char
2630 *". This may still change yet if someone realises MS_TM and "ms_time_***"
2631 aren't necessarily the greatest nomenclatures - but this is what was used
2632 internally to the implementation so I've used that for now.
2635 *) Ensure that deprecated functions do not get compiled when
2636 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
2637 the self-tests were still using deprecated key-generation functions so
2638 these have been updated also.
2641 *) Reorganise PKCS#7 code to separate the digest location functionality
2642 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
2643 New function PKCS7_set_digest() to set the digest type for PKCS#7
2644 digestedData type. Add additional code to correctly generate the
2645 digestedData type and add support for this type in PKCS7 initialization
2649 *) New function PKCS7_set0_type_other() this initializes a PKCS7
2650 structure of type "other".
2653 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
2654 sure the loop does correctly stop and breaking ("division by zero")
2655 modulus operations are not performed. The (pre-generated) prime
2656 table crypto/bn/bn_prime.h was already correct, but it could not be
2657 re-generated on some platforms because of the "division by zero"
2658 situation in the script.
2659 [Ralf S. Engelschall]
2661 *) Update support for ECC-based TLS ciphersuites according to
2662 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
2663 SHA-1 now is only used for "small" curves (where the
2664 representation of a field element takes up to 24 bytes); for
2665 larger curves, the field element resulting from ECDH is directly
2666 used as premaster secret.
2667 [Douglas Stebila (Sun Microsystems Laboratories)]
2669 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
2670 curve secp160r1 to the tests.
2671 [Douglas Stebila (Sun Microsystems Laboratories)]
2673 *) Add the possibility to load symbols globally with DSO.
2674 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
2676 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
2677 control of the error stack.
2680 *) Add support for STORE in ENGINE.
2683 *) Add the STORE type. The intention is to provide a common interface
2684 to certificate and key stores, be they simple file-based stores, or
2685 HSM-type store, or LDAP stores, or...
2686 NOTE: The code is currently UNTESTED and isn't really used anywhere.
2689 *) Add a generic structure called OPENSSL_ITEM. This can be used to
2690 pass a list of arguments to any function as well as provide a way
2691 for a function to pass data back to the caller.
2694 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
2695 works like BUF_strdup() but can be used to duplicate a portion of
2696 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
2700 *) Add the function sk_find_ex() which works like sk_find(), but will
2701 return an index to an element even if an exact match couldn't be
2702 found. The index is guaranteed to point at the element where the
2703 searched-for key would be inserted to preserve sorting order.
2706 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
2707 takes an extra flags argument for optional functionality. Currently,
2708 the following flags are defined:
2710 OBJ_BSEARCH_VALUE_ON_NOMATCH
2711 This one gets OBJ_bsearch_ex() to return a pointer to the first
2712 element where the comparing function returns a negative or zero
2715 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
2716 This one gets OBJ_bsearch_ex() to return a pointer to the first
2717 element where the comparing function returns zero. This is useful
2718 if there are more than one element where the comparing function
2722 *) Make it possible to create self-signed certificates with 'openssl ca'
2723 in such a way that the self-signed certificate becomes part of the
2724 CA database and uses the same mechanisms for serial number generation
2725 as all other certificate signing. The new flag '-selfsign' enables
2726 this functionality. Adapt CA.sh and CA.pl.in.
2729 *) Add functionality to check the public key of a certificate request
2730 against a given private. This is useful to check that a certificate
2731 request can be signed by that key (self-signing).
2734 *) Make it possible to have multiple active certificates with the same
2735 subject in the CA index file. This is done only if the keyword
2736 'unique_subject' is set to 'no' in the main CA section (default
2737 if 'CA_default') of the configuration file. The value is saved
2738 with the database itself in a separate index attribute file,
2739 named like the index file with '.attr' appended to the name.
2742 *) Generate muti valued AVAs using '+' notation in config files for
2746 *) Support for nameConstraints certificate extension.
2749 *) Support for policyConstraints certificate extension.
2752 *) Support for policyMappings certificate extension.
2755 *) Make sure the default DSA_METHOD implementation only uses its
2756 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
2757 and change its own handlers to be NULL so as to remove unnecessary
2758 indirection. This lets alternative implementations fallback to the
2759 default implementation more easily.
2762 *) Support for directoryName in GeneralName related extensions
2766 *) Make it possible to link applications using Makefile.shared.
2767 Make that possible even when linking against static libraries!
2770 *) Support for single pass processing for S/MIME signing. This now
2771 means that S/MIME signing can be done from a pipe, in addition
2772 cleartext signing (multipart/signed type) is effectively streaming
2773 and the signed data does not need to be all held in memory.
2775 This is done with a new flag PKCS7_STREAM. When this flag is set
2776 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
2777 is done after the data is output (and digests calculated) in
2778 SMIME_write_PKCS7().
2781 *) Add full support for -rpath/-R, both in shared libraries and
2782 applications, at least on the platforms where it's known how
2786 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
2787 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
2788 will now compute a table of multiples of the generator that
2789 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
2790 faster (notably in the case of a single point multiplication,
2791 scalar * generator).
2792 [Nils Larsch, Bodo Moeller]
2794 *) IPv6 support for certificate extensions. The various extensions
2795 which use the IP:a.b.c.d can now take IPv6 addresses using the
2796 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
2800 *) Added an ENGINE that implements RSA by performing private key
2801 exponentiations with the GMP library. The conversions to and from
2802 GMP's mpz_t format aren't optimised nor are any montgomery forms
2803 cached, and on x86 it appears OpenSSL's own performance has caught up.
2804 However there are likely to be other architectures where GMP could
2805 provide a boost. This ENGINE is not built in by default, but it can be
2806 specified at Configure time and should be accompanied by the necessary
2807 linker additions, eg;
2808 ./config -DOPENSSL_USE_GMP -lgmp
2811 *) "openssl engine" will not display ENGINE/DSO load failure errors when
2812 testing availability of engines with "-t" - the old behaviour is
2813 produced by increasing the feature's verbosity with "-tt".
2816 *) ECDSA routines: under certain error conditions uninitialized BN objects
2817 could be freed. Solution: make sure initialization is performed early
2818 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
2822 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
2823 and DH_METHOD (eg. by ENGINE implementations) to override the normal
2824 software implementations. For DSA and DH, parameter generation can
2825 also be overriden by providing the appropriate method callbacks.
2828 *) Change the "progress" mechanism used in key-generation and
2829 primality testing to functions that take a new BN_GENCB pointer in
2830 place of callback/argument pairs. The new API functions have "_ex"
2831 postfixes and the older functions are reimplemented as wrappers for
2832 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
2833 declarations of the old functions to help (graceful) attempts to
2834 migrate to the new functions. Also, the new key-generation API
2835 functions operate on a caller-supplied key-structure and return
2836 success/failure rather than returning a key or NULL - this is to
2837 help make "keygen" another member function of RSA_METHOD etc.
2839 Example for using the new callback interface:
2841 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
2845 BN_GENCB_set(&my_cb, my_callback, my_arg);
2847 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
2848 /* For the meaning of a, b in calls to my_callback(), see the
2849 * documentation of the function that calls the callback.
2850 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
2851 * my_callback should return 1 if it wants BN_is_prime_ex()
2852 * to continue, or 0 to stop.
2857 *) Change the ZLIB compression method to be stateful, and make it
2858 available to TLS with the number defined in
2859 draft-ietf-tls-compression-04.txt.
2862 *) Add the ASN.1 structures and functions for CertificatePair, which
2863 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
2865 CertificatePair ::= SEQUENCE {
2866 forward [0] Certificate OPTIONAL,
2867 reverse [1] Certificate OPTIONAL,
2868 -- at least one of the pair shall be present -- }
2870 Also implement the PEM functions to read and write certificate
2871 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
2873 This needed to be defined, mostly for the sake of the LDAP
2874 attribute crossCertificatePair, but may prove useful elsewhere as
2878 *) Make it possible to inhibit symlinking of shared libraries in
2879 Makefile.shared, for Cygwin's sake.
2882 *) Extend the BIGNUM API by creating a function
2883 void BN_set_negative(BIGNUM *a, int neg);
2884 and a macro that behave like
2885 int BN_is_negative(const BIGNUM *a);
2887 to avoid the need to access 'a->neg' directly in applications.
2890 *) Implement fast modular reduction for pseudo-Mersenne primes
2891 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
2892 EC_GROUP_new_curve_GFp() will now automatically use this
2894 [Nils Larsch <nla@trustcenter.de>]
2896 *) Add new lock type (CRYPTO_LOCK_BN).
2899 *) Change the ENGINE framework to automatically load engines
2900 dynamically from specific directories unless they could be
2901 found to already be built in or loaded. Move all the
2902 current engines except for the cryptodev one to a new
2904 The engines in engines/ are built as shared libraries if
2905 the "shared" options was given to ./Configure or ./config.
2906 Otherwise, they are inserted in libcrypto.a.
2907 /usr/local/ssl/engines is the default directory for dynamic
2908 engines, but that can be overriden at configure time through
2909 the usual use of --prefix and/or --openssldir, and at run
2910 time with the environment variable OPENSSL_ENGINES.
2911 [Geoff Thorpe and Richard Levitte]
2913 *) Add Makefile.shared, a helper makefile to build shared
2914 libraries. Addapt Makefile.org.
2917 *) Add version info to Win32 DLLs.
2918 [Peter 'Luna' Runestig" <peter@runestig.com>]
2920 *) Add new 'medium level' PKCS#12 API. Certificates and keys
2921 can be added using this API to created arbitrary PKCS#12
2922 files while avoiding the low level API.
2924 New options to PKCS12_create(), key or cert can be NULL and
2925 will then be omitted from the output file. The encryption
2926 algorithm NIDs can be set to -1 for no encryption, the mac
2927 iteration count can be set to 0 to omit the mac.
2929 Enhance pkcs12 utility by making the -nokeys and -nocerts
2930 options work when creating a PKCS#12 file. New option -nomac
2931 to omit the mac, NONE can be set for an encryption algorithm.
2932 New code is modified to use the enhanced PKCS12_create()
2933 instead of the low level API.
2936 *) Extend ASN1 encoder to support indefinite length constructed
2937 encoding. This can output sequences tags and octet strings in
2938 this form. Modify pk7_asn1.c to support indefinite length
2939 encoding. This is experimental and needs additional code to
2940 be useful, such as an ASN1 bio and some enhanced streaming
2943 Extend template encode functionality so that tagging is passed
2944 down to the template encoder.
2947 *) Let 'openssl req' fail if an argument to '-newkey' is not
2948 recognized instead of using RSA as a default.
2951 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
2952 As these are not official, they are not included in "ALL";
2953 the "ECCdraft" ciphersuite group alias can be used to select them.
2954 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
2956 *) Add ECDH engine support.
2957 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
2959 *) Add ECDH in new directory crypto/ecdh/.
2960 [Douglas Stebila (Sun Microsystems Laboratories)]
2962 *) Let BN_rand_range() abort with an error after 100 iterations
2963 without success (which indicates a broken PRNG).
2966 *) Change BN_mod_sqrt() so that it verifies that the input value
2967 is really the square of the return value. (Previously,
2968 BN_mod_sqrt would show GIGO behaviour.)
2971 *) Add named elliptic curves over binary fields from X9.62, SECG,
2972 and WAP/WTLS; add OIDs that were still missing.
2974 [Sheueling Chang Shantz and Douglas Stebila
2975 (Sun Microsystems Laboratories)]
2977 *) Extend the EC library for elliptic curves over binary fields
2978 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
2981 EC_GF2m_simple_method
2985 EC_GROUP_new_curve_GF2m
2986 EC_GROUP_set_curve_GF2m
2987 EC_GROUP_get_curve_GF2m
2988 EC_POINT_set_affine_coordinates_GF2m
2989 EC_POINT_get_affine_coordinates_GF2m
2990 EC_POINT_set_compressed_coordinates_GF2m
2992 Point compression for binary fields is disabled by default for
2993 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
2996 As binary polynomials are represented as BIGNUMs, various members
2997 of the EC_GROUP and EC_POINT data structures can be shared
2998 between the implementations for prime fields and binary fields;
2999 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
3000 are essentially identical to their ..._GFp counterparts.
3001 (For simplicity, the '..._GFp' prefix has been dropped from
3002 various internal method names.)
3004 An internal 'field_div' method (similar to 'field_mul' and
3005 'field_sqr') has been added; this is used only for binary fields.
3007 [Sheueling Chang Shantz and Douglas Stebila
3008 (Sun Microsystems Laboratories)]
3010 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
3011 through methods ('mul', 'precompute_mult').
3013 The generic implementations (now internally called 'ec_wNAF_mul'
3014 and 'ec_wNAF_precomputed_mult') remain the default if these
3015 methods are undefined.
3017 [Sheueling Chang Shantz and Douglas Stebila
3018 (Sun Microsystems Laboratories)]
3020 *) New function EC_GROUP_get_degree, which is defined through
3021 EC_METHOD. For curves over prime fields, this returns the bit
3022 length of the modulus.
3024 [Sheueling Chang Shantz and Douglas Stebila
3025 (Sun Microsystems Laboratories)]
3027 *) New functions EC_GROUP_dup, EC_POINT_dup.
3028 (These simply call ..._new and ..._copy).
3030 [Sheueling Chang Shantz and Douglas Stebila
3031 (Sun Microsystems Laboratories)]
3033 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
3034 Polynomials are represented as BIGNUMs (where the sign bit is not
3035 used) in the following functions [macros]:
3038 BN_GF2m_sub [= BN_GF2m_add]
3039 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
3040 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
3041 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
3043 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
3044 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
3045 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
3046 BN_GF2m_cmp [= BN_ucmp]
3048 (Note that only the 'mod' functions are actually for fields GF(2^m).
3049 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
3051 For some functions, an the irreducible polynomial defining a
3052 field can be given as an 'unsigned int[]' with strictly
3053 decreasing elements giving the indices of those bits that are set;
3054 i.e., p[] represents the polynomial
3055 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
3057 p[0] > p[1] > ... > p[k] = 0.
3058 This applies to the following functions:
3063 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
3064 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
3066 BN_GF2m_mod_sqrt_arr
3067 BN_GF2m_mod_solve_quad_arr
3071 Conversion can be performed by the following functions:
3076 bntest.c has additional tests for binary polynomial arithmetic.
3078 Two implementations for BN_GF2m_mod_div() are available.
3079 The default algorithm simply uses BN_GF2m_mod_inv() and
3080 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
3081 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
3082 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
3084 [Sheueling Chang Shantz and Douglas Stebila
3085 (Sun Microsystems Laboratories)]
3087 *) Add new error code 'ERR_R_DISABLED' that can be used when some
3088 functionality is disabled at compile-time.
3089 [Douglas Stebila <douglas.stebila@sun.com>]
3091 *) Change default behaviour of 'openssl asn1parse' so that more
3092 information is visible when viewing, e.g., a certificate:
3094 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
3095 mode the content of non-printable OCTET STRINGs is output in a
3096 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
3097 avoid the appearance of a printable string.
3098 [Nils Larsch <nla@trustcenter.de>]
3100 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
3102 EC_GROUP_set_asn1_flag()
3103 EC_GROUP_get_asn1_flag()
3104 EC_GROUP_set_point_conversion_form()
3105 EC_GROUP_get_point_conversion_form()
3106 These control ASN1 encoding details:
3107 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
3108 has been set to OPENSSL_EC_NAMED_CURVE.
3109 - Points are encoded in uncompressed form by default; options for
3110 asn1_for are as for point2oct, namely
3111 POINT_CONVERSION_COMPRESSED
3112 POINT_CONVERSION_UNCOMPRESSED
3113 POINT_CONVERSION_HYBRID
3115 Also add 'seed' and 'seed_len' members to EC_GROUP with access
3118 EC_GROUP_get0_seed()
3119 EC_GROUP_get_seed_len()
3120 This is used only for ASN1 purposes (so far).
3121 [Nils Larsch <nla@trustcenter.de>]
3123 *) Add 'field_type' member to EC_METHOD, which holds the NID
3124 of the appropriate field type OID. The new function
3125 EC_METHOD_get_field_type() returns this value.
3126 [Nils Larsch <nla@trustcenter.de>]
3131 EC_POINT_point2hex()
3132 EC_POINT_hex2point()
3133 providing useful interfaces to EC_POINT_point2oct() and
3134 EC_POINT_oct2point().
3135 [Nils Larsch <nla@trustcenter.de>]
3137 *) Change internals of the EC library so that the functions
3138 EC_GROUP_set_generator()
3139 EC_GROUP_get_generator()
3140 EC_GROUP_get_order()
3141 EC_GROUP_get_cofactor()
3142 are implemented directly in crypto/ec/ec_lib.c and not dispatched
3143 to methods, which would lead to unnecessary code duplication when
3144 adding different types of curves.
3145 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
3147 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
3148 arithmetic, and such that modified wNAFs are generated
3149 (which avoid length expansion in many cases).
3152 *) Add a function EC_GROUP_check_discriminant() (defined via
3153 EC_METHOD) that verifies that the curve discriminant is non-zero.
3155 Add a function EC_GROUP_check() that makes some sanity tests
3156 on a EC_GROUP, its generator and order. This includes
3157 EC_GROUP_check_discriminant().
3158 [Nils Larsch <nla@trustcenter.de>]
3160 *) Add ECDSA in new directory crypto/ecdsa/.
3162 Add applications 'openssl ecparam' and 'openssl ecdsa'
3163 (these are based on 'openssl dsaparam' and 'openssl dsa').
3165 ECDSA support is also included in various other files across the
3166 library. Most notably,
3167 - 'openssl req' now has a '-newkey ecdsa:file' option;
3168 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
3169 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
3170 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
3171 them suitable for ECDSA where domain parameters must be
3172 extracted before the specific public key;
3173 - ECDSA engine support has been added.
3174 [Nils Larsch <nla@trustcenter.de>]
3176 *) Include some named elliptic curves, and add OIDs from X9.62,
3177 SECG, and WAP/WTLS. Each curve can be obtained from the new
3179 EC_GROUP_new_by_curve_name(),
3180 and the list of available named curves can be obtained with
3181 EC_get_builtin_curves().
3182 Also add a 'curve_name' member to EC_GROUP objects, which can be
3184 EC_GROUP_set_curve_name()
3185 EC_GROUP_get_curve_name()
3186 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
3188 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3189 was actually never needed) and in BN_mul(). The removal in BN_mul()
3190 required a small change in bn_mul_part_recursive() and the addition
3191 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3192 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3193 bn_sub_words() and bn_add_words() except they take arrays with
3197 Changes between 0.9.7l and 0.9.7m [23 Feb 2007]
3199 *) Cleanse PEM buffers before freeing them since they may contain
3201 [Benjamin Bennett <ben@psc.edu>]
3203 *) Include "!eNULL" in SSL_DEFAULT_CIPHER_LIST to make sure that
3204 a ciphersuite string such as "DEFAULT:RSA" cannot enable
3205 authentication-only ciphersuites.
3208 *) Since AES128 and AES256 share a single mask bit in the logic of
3209 ssl/ssl_ciph.c, the code for masking out disabled ciphers needs a
3210 kludge to work properly if AES128 is available and AES256 isn't.
3213 *) Expand security boundary to match 1.1.1 module.
3216 *) Remove redundant features: hash file source, editing of test vectors
3217 modify fipsld to use external fips_premain.c signature.
3220 *) New perl script mkfipsscr.pl to create shell scripts or batch files to
3221 run algorithm test programs.
3224 *) Make algorithm test programs more tolerant of whitespace.
3227 *) Have SSL/TLS server implementation tolerate "mismatched" record
3228 protocol version while receiving ClientHello even if the
3229 ClientHello is fragmented. (The server can't insist on the
3230 particular protocol version it has chosen before the ServerHello
3231 message has informed the client about his choice.)
3234 *) Load error codes if they are not already present instead of using a
3235 static variable. This allows them to be cleanly unloaded and reloaded.
3238 Changes between 0.9.7k and 0.9.7l [28 Sep 2006]
3240 *) Introduce limits to prevent malicious keys being able to
3241 cause a denial of service. (CVE-2006-2940)
3242 [Steve Henson, Bodo Moeller]
3244 *) Fix ASN.1 parsing of certain invalid structures that can result
3245 in a denial of service. (CVE-2006-2937) [Steve Henson]
3247 *) Fix buffer overflow in SSL_get_shared_ciphers() function.
3248 (CVE-2006-3738) [Tavis Ormandy and Will Drewry, Google Security Team]
3250 *) Fix SSL client code which could crash if connecting to a
3251 malicious SSLv2 server. (CVE-2006-4343)
3252 [Tavis Ormandy and Will Drewry, Google Security Team]
3254 *) Change ciphersuite string processing so that an explicit
3255 ciphersuite selects this one ciphersuite (so that "AES256-SHA"
3256 will no longer include "AES128-SHA"), and any other similar
3257 ciphersuite (same bitmap) from *other* protocol versions (so that
3258 "RC4-MD5" will still include both the SSL 2.0 ciphersuite and the
3259 SSL 3.0/TLS 1.0 ciphersuite). This is a backport combining
3260 changes from 0.9.8b and 0.9.8d.
3263 Changes between 0.9.7j and 0.9.7k [05 Sep 2006]
3265 *) Avoid PKCS #1 v1.5 signature attack discovered by Daniel Bleichenbacher
3266 (CVE-2006-4339) [Ben Laurie and Google Security Team]
3268 *) Change the Unix randomness entropy gathering to use poll() when
3269 possible instead of select(), since the latter has some
3270 undesirable limitations.
3271 [Darryl Miles via Richard Levitte and Bodo Moeller]
3273 *) Disable rogue ciphersuites:
3275 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
3276 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
3277 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
3279 The latter two were purportedly from
3280 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
3283 Also deactive the remaining ciphersuites from
3284 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
3285 unofficial, and the ID has long expired.
3288 *) Fix RSA blinding Heisenbug (problems sometimes occured on
3289 dual-core machines) and other potential thread-safety issues.
3292 Changes between 0.9.7i and 0.9.7j [04 May 2006]
3294 *) Adapt fipsld and the build system to link against the validated FIPS
3295 module in FIPS mode.
3298 *) Fixes for VC++ 2005 build under Windows.
3301 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
3302 from a Windows bash shell such as MSYS. It is autodetected from the
3303 "config" script when run from a VC++ environment. Modify standard VC++
3304 build to use fipscanister.o from the GNU make build.
3307 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
3309 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
3310 The value now differs depending on if you build for FIPS or not.
3311 BEWARE! A program linked with a shared FIPSed libcrypto can't be
3312 safely run with a non-FIPSed libcrypto, as it may crash because of
3313 the difference induced by this change.
3316 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
3318 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
3319 (part of SSL_OP_ALL). This option used to disable the
3320 countermeasure against man-in-the-middle protocol-version
3321 rollback in the SSL 2.0 server implementation, which is a bad
3322 idea. (CVE-2005-2969)
3324 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
3325 for Information Security, National Institute of Advanced Industrial
3326 Science and Technology [AIST], Japan)]
3328 *) Minimal support for X9.31 signatures and PSS padding modes. This is
3329 mainly for FIPS compliance and not fully integrated at this stage.
3332 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
3333 the exponentiation using a fixed-length exponent. (Otherwise,
3334 the information leaked through timing could expose the secret key
3335 after many signatures; cf. Bleichenbacher's attack on DSA with
3339 *) Make a new fixed-window mod_exp implementation the default for
3340 RSA, DSA, and DH private-key operations so that the sequence of
3341 squares and multiplies and the memory access pattern are
3342 independent of the particular secret key. This will mitigate
3343 cache-timing and potential related attacks.
3345 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
3346 and this is automatically used by BN_mod_exp_mont() if the new flag
3347 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
3348 will use this BN flag for private exponents unless the flag
3349 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
3350 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
3352 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
3354 *) Change the client implementation for SSLv23_method() and
3355 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
3356 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
3357 (Previously, the SSL 2.0 backwards compatible Client Hello
3358 message format would be used even with SSL_OP_NO_SSLv2.)
3361 *) Add support for smime-type MIME parameter in S/MIME messages which some
3365 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
3366 a threadsafe manner. Modify rsa code to use new function and add calls
3367 to dsa and dh code (which had race conditions before).
3370 *) Include the fixed error library code in the C error file definitions
3371 instead of fixing them up at runtime. This keeps the error code
3372 structures constant.
3375 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
3377 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
3380 *) Fixes for newer kerberos headers. NB: the casts are needed because
3381 the 'length' field is signed on one version and unsigned on another
3382 with no (?) obvious way to tell the difference, without these VC++
3383 complains. Also the "definition" of FAR (blank) is no longer included
3384 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
3385 some needed definitions.
3388 *) Undo Cygwin change.
3391 *) Added support for proxy certificates according to RFC 3820.
3392 Because they may be a security thread to unaware applications,
3393 they must be explicitely allowed in run-time. See
3394 docs/HOWTO/proxy_certificates.txt for further information.
3397 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
3399 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
3400 server and client random values. Previously
3401 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
3402 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
3404 This change has negligible security impact because:
3406 1. Server and client random values still have 24 bytes of pseudo random
3409 2. Server and client random values are sent in the clear in the initial
3412 3. The master secret is derived using the premaster secret (48 bytes in
3413 size for static RSA ciphersuites) as well as client server and random
3416 The OpenSSL team would like to thank the UK NISCC for bringing this issue
3419 [Stephen Henson, reported by UK NISCC]
3421 *) Use Windows randomness collection on Cygwin.
3424 *) Fix hang in EGD/PRNGD query when communication socket is closed
3425 prematurely by EGD/PRNGD.
3426 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
3428 *) Prompt for pass phrases when appropriate for PKCS12 input format.
3431 *) Back-port of selected performance improvements from development
3432 branch, as well as improved support for PowerPC platforms.
3435 *) Add lots of checks for memory allocation failure, error codes to indicate
3436 failure and freeing up memory if a failure occurs.
3437 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
3439 *) Add new -passin argument to dgst.
3442 *) Perform some character comparisons of different types in X509_NAME_cmp:
3443 this is needed for some certificates that reencode DNs into UTF8Strings
3444 (in violation of RFC3280) and can't or wont issue name rollover
3448 *) Make an explicit check during certificate validation to see that
3449 the CA setting in each certificate on the chain is correct. As a
3450 side effect always do the following basic checks on extensions,
3451 not just when there's an associated purpose to the check:
3453 - if there is an unhandled critical extension (unless the user
3454 has chosen to ignore this fault)
3455 - if the path length has been exceeded (if one is set at all)
3456 - that certain extensions fit the associated purpose (if one has
3460 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
3462 *) Avoid a race condition when CRLs are checked in a multi threaded
3463 environment. This would happen due to the reordering of the revoked
3464 entries during signature checking and serial number lookup. Now the
3465 encoding is cached and the serial number sort performed under a lock.
3466 Add new STACK function sk_is_sorted().
3469 *) Add Delta CRL to the extension code.
3472 *) Various fixes to s3_pkt.c so alerts are sent properly.
3473 [David Holmes <d.holmes@f5.com>]
3475 *) Reduce the chances of duplicate issuer name and serial numbers (in
3476 violation of RFC3280) using the OpenSSL certificate creation utilities.
3477 This is done by creating a random 64 bit value for the initial serial
3478 number when a serial number file is created or when a self signed
3479 certificate is created using 'openssl req -x509'. The initial serial
3480 number file is created using 'openssl x509 -next_serial' in CA.pl
3481 rather than being initialized to 1.
3484 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
3486 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3487 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3488 [Joe Orton, Steve Henson]
3490 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
3492 [Joe Orton, Steve Henson]
3494 *) Make it possible to have multiple active certificates with the same
3495 subject in the CA index file. This is done only if the keyword
3496 'unique_subject' is set to 'no' in the main CA section (default
3497 if 'CA_default') of the configuration file. The value is saved
3498 with the database itself in a separate index attribute file,
3499 named like the index file with '.attr' appended to the name.
3502 *) X509 verify fixes. Disable broken certificate workarounds when
3503 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
3504 keyUsage extension present. Don't accept CRLs with unhandled critical
3505 extensions: since verify currently doesn't process CRL extensions this
3506 rejects a CRL with *any* critical extensions. Add new verify error codes
3510 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
3511 A clarification of RFC2560 will require the use of OCTET STRINGs and
3512 some implementations cannot handle the current raw format. Since OpenSSL
3513 copies and compares OCSP nonces as opaque blobs without any attempt at
3514 parsing them this should not create any compatibility issues.
3517 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
3518 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
3519 this HMAC (and other) operations are several times slower than OpenSSL
3523 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
3524 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
3526 *) Use the correct content when signing type "other".
3529 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
3531 *) Fix various bugs revealed by running the NISCC test suite:
3533 Stop out of bounds reads in the ASN1 code when presented with
3534 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3536 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
3538 If verify callback ignores invalid public key errors don't try to check
3539 certificate signature with the NULL public key.
3543 *) New -ignore_err option in ocsp application to stop the server
3544 exiting on the first error in a request.
3547 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3548 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3552 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3553 extra data after the compression methods not only for TLS 1.0
3554 but also for SSL 3.0 (as required by the specification).
3555 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3557 *) Change X509_certificate_type() to mark the key as exported/exportable
3558 when it's 512 *bits* long, not 512 bytes.
3561 *) Change AES_cbc_encrypt() so it outputs exact multiple of
3562 blocks during encryption.
3565 *) Various fixes to base64 BIO and non blocking I/O. On write
3566 flushes were not handled properly if the BIO retried. On read
3567 data was not being buffered properly and had various logic bugs.
3568 This also affects blocking I/O when the data being decoded is a
3572 *) Various S/MIME bugfixes and compatibility changes:
3573 output correct application/pkcs7 MIME type if
3574 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
3575 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
3576 of files as .eml work). Correctly handle very long lines in MIME
3580 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
3582 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3583 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3584 a protocol version number mismatch like a decryption error
3585 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3588 *) Turn on RSA blinding by default in the default implementation
3589 to avoid a timing attack. Applications that don't want it can call
3590 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3591 They would be ill-advised to do so in most cases.
3592 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3594 *) Change RSA blinding code so that it works when the PRNG is not
3595 seeded (in this case, the secret RSA exponent is abused as
3596 an unpredictable seed -- if it is not unpredictable, there
3597 is no point in blinding anyway). Make RSA blinding thread-safe
3598 by remembering the creator's thread ID in rsa->blinding and
3599 having all other threads use local one-time blinding factors
3600 (this requires more computation than sharing rsa->blinding, but
3601 avoids excessive locking; and if an RSA object is not shared
3602 between threads, blinding will still be very fast).
3605 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
3606 ENGINE as defaults for all supported algorithms irrespective of
3607 the 'flags' parameter. 'flags' is now honoured, so applications
3608 should make sure they are passing it correctly.
3611 *) Target "mingw" now allows native Windows code to be generated in
3612 the Cygwin environment as well as with the MinGW compiler.
3615 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
3617 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3618 via timing by performing a MAC computation even if incorrrect
3619 block cipher padding has been found. This is a countermeasure
3620 against active attacks where the attacker has to distinguish
3621 between bad padding and a MAC verification error. (CVE-2003-0078)
3623 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3624 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3625 Martin Vuagnoux (EPFL, Ilion)]
3627 *) Make the no-err option work as intended. The intention with no-err
3628 is not to have the whole error stack handling routines removed from
3629 libcrypto, it's only intended to remove all the function name and
3630 reason texts, thereby removing some of the footprint that may not
3631 be interesting if those errors aren't displayed anyway.
3633 NOTE: it's still possible for any application or module to have it's
3634 own set of error texts inserted. The routines are there, just not
3635 used by default when no-err is given.
3638 *) Add support for FreeBSD on IA64.
3639 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
3641 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
3642 Kerberos function mit_des_cbc_cksum(). Before this change,
3643 the value returned by DES_cbc_cksum() was like the one from
3644 mit_des_cbc_cksum(), except the bytes were swapped.
3645 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
3647 *) Allow an application to disable the automatic SSL chain building.
3648 Before this a rather primitive chain build was always performed in
3649 ssl3_output_cert_chain(): an application had no way to send the
3650 correct chain if the automatic operation produced an incorrect result.
3652 Now the chain builder is disabled if either:
3654 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
3656 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
3658 The reasoning behind this is that an application would not want the
3659 auto chain building to take place if extra chain certificates are
3660 present and it might also want a means of sending no additional
3661 certificates (for example the chain has two certificates and the
3665 *) Add the possibility to build without the ENGINE framework.
3666 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3668 *) Under Win32 gmtime() can return NULL: check return value in
3669 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
3672 *) DSA routines: under certain error conditions uninitialized BN objects
3673 could be freed. Solution: make sure initialization is performed early
3674 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
3675 Nils Larsch <nla@trustcenter.de> via PR#459)
3678 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
3679 checked on reconnect on the client side, therefore session resumption
3680 could still fail with a "ssl session id is different" error. This
3681 behaviour is masked when SSL_OP_ALL is used due to
3682 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
3683 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3684 followup to PR #377.
3687 *) IA-32 assembler support enhancements: unified ELF targets, support
3688 for SCO/Caldera platforms, fix for Cygwin shared build.
3691 *) Add support for FreeBSD on sparc64. As a consequence, support for
3692 FreeBSD on non-x86 processors is separate from x86 processors on
3693 the config script, much like the NetBSD support.
3694 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
3696 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
3698 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
3701 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
3702 code (06) was taken as the first octet of the session ID and the last
3703 octet was ignored consequently. As a result SSLv2 client side session
3704 caching could not have worked due to the session ID mismatch between
3706 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
3710 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
3711 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
3715 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
3716 seems that in spite of existing for more than a year, many application
3717 author have done nothing to provide the necessary callbacks, which
3718 means that this particular engine will not work properly anywhere.
3719 This is a very unfortunate situation which forces us, in the name
3720 of usability, to give the hw_ncipher.c a static lock, which is part
3722 NOTE: This is for the 0.9.7 series ONLY. This hack will never
3723 appear in 0.9.8 or later. We EXPECT application authors to have
3724 dealt properly with this when 0.9.8 is released (unless we actually
3725 make such changes in the libcrypto locking code that changes will
3726 have to be made anyway).
3729 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
3730 octets have been read, EOF or an error occurs. Without this change
3731 some truncated ASN1 structures will not produce an error.
3734 *) Disable Heimdal support, since it hasn't been fully implemented.
3735 Still give the possibility to force the use of Heimdal, but with
3736 warnings and a request that patches get sent to openssl-dev.
3739 *) Add the VC-CE target, introduce the WINCE sysname, and add
3740 INSTALL.WCE and appropriate conditionals to make it build.
3741 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
3743 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
3744 cygssl-x.y.z.dll, where x, y and z are the major, minor and
3745 edit numbers of the version.
3746 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3748 *) Introduce safe string copy and catenation functions
3749 (BUF_strlcpy() and BUF_strlcat()).
3750 [Ben Laurie (CHATS) and Richard Levitte]
3752 *) Avoid using fixed-size buffers for one-line DNs.
3753 [Ben Laurie (CHATS)]
3755 *) Add BUF_MEM_grow_clean() to avoid information leakage when
3756 resizing buffers containing secrets, and use where appropriate.
3757 [Ben Laurie (CHATS)]
3759 *) Avoid using fixed size buffers for configuration file location.
3760 [Ben Laurie (CHATS)]
3762 *) Avoid filename truncation for various CA files.
3763 [Ben Laurie (CHATS)]
3765 *) Use sizeof in preference to magic numbers.
3766 [Ben Laurie (CHATS)]
3768 *) Avoid filename truncation in cert requests.
3769 [Ben Laurie (CHATS)]
3771 *) Add assertions to check for (supposedly impossible) buffer
3773 [Ben Laurie (CHATS)]
3775 *) Don't cache truncated DNS entries in the local cache (this could
3776 potentially lead to a spoofing attack).
3777 [Ben Laurie (CHATS)]
3779 *) Fix various buffers to be large enough for hex/decimal
3780 representations in a platform independent manner.
3781 [Ben Laurie (CHATS)]
3783 *) Add CRYPTO_realloc_clean() to avoid information leakage when
3784 resizing buffers containing secrets, and use where appropriate.
3785 [Ben Laurie (CHATS)]
3787 *) Add BIO_indent() to avoid much slightly worrying code to do
3789 [Ben Laurie (CHATS)]
3791 *) Convert sprintf()/BIO_puts() to BIO_printf().
3792 [Ben Laurie (CHATS)]
3794 *) buffer_gets() could terminate with the buffer only half
3796 [Ben Laurie (CHATS)]
3798 *) Add assertions to prevent user-supplied crypto functions from
3799 overflowing internal buffers by having large block sizes, etc.
3800 [Ben Laurie (CHATS)]
3802 *) New OPENSSL_assert() macro (similar to assert(), but enabled
3804 [Ben Laurie (CHATS)]
3806 *) Eliminate unused copy of key in RC4.
3807 [Ben Laurie (CHATS)]
3809 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
3810 [Ben Laurie (CHATS)]
3812 *) Fix off-by-one error in EGD path.
3813 [Ben Laurie (CHATS)]
3815 *) If RANDFILE path is too long, ignore instead of truncating.
3816 [Ben Laurie (CHATS)]
3818 *) Eliminate unused and incorrectly sized X.509 structure
3820 [Ben Laurie (CHATS)]
3822 *) Eliminate unused and dangerous function knumber().
3823 [Ben Laurie (CHATS)]
3825 *) Eliminate unused and dangerous structure, KSSL_ERR.
3826 [Ben Laurie (CHATS)]
3828 *) Protect against overlong session ID context length in an encoded
3829 session object. Since these are local, this does not appear to be
3831 [Ben Laurie (CHATS)]
3833 *) Change from security patch (see 0.9.6e below) that did not affect
3834 the 0.9.6 release series:
3836 Remote buffer overflow in SSL3 protocol - an attacker could
3837 supply an oversized master key in Kerberos-enabled versions.
3839 [Ben Laurie (CHATS)]
3841 *) Change the SSL kerb5 codes to match RFC 2712.
3844 *) Make -nameopt work fully for req and add -reqopt switch.
3845 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
3847 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
3848 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
3850 *) Make sure tests can be performed even if the corresponding algorithms
3851 have been removed entirely. This was also the last step to make
3852 OpenSSL compilable with DJGPP under all reasonable conditions.
3853 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
3855 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
3856 to allow version independent disabling of normally unselected ciphers,
3857 which may be activated as a side-effect of selecting a single cipher.
3859 (E.g., cipher list string "RSA" enables ciphersuites that are left
3860 out of "ALL" because they do not provide symmetric encryption.
3861 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
3862 [Lutz Jaenicke, Bodo Moeller]
3864 *) Add appropriate support for separate platform-dependent build
3865 directories. The recommended way to make a platform-dependent
3866 build directory is the following (tested on Linux), maybe with
3869 # Place yourself outside of the OpenSSL source tree. In
3870 # this example, the environment variable OPENSSL_SOURCE
3871 # is assumed to contain the absolute OpenSSL source directory.
3872 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
3873 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
3874 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
3875 mkdir -p `dirname $F`
3876 ln -s $OPENSSL_SOURCE/$F $F
3879 To be absolutely sure not to disturb the source tree, a "make clean"
3880 is a good thing. If it isn't successfull, don't worry about it,
3881 it probably means the source directory is very clean.
3884 *) Make sure any ENGINE control commands make local copies of string
3885 pointers passed to them whenever necessary. Otherwise it is possible
3886 the caller may have overwritten (or deallocated) the original string
3887 data when a later ENGINE operation tries to use the stored values.
3888 [Götz Babin-Ebell <babinebell@trustcenter.de>]
3890 *) Improve diagnostics in file reading and command-line digests.
3891 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
3893 *) Add AES modes CFB and OFB to the object database. Correct an
3894 error in AES-CFB decryption.
3897 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
3898 allows existing EVP_CIPHER_CTX structures to be reused after
3899 calling EVP_*Final(). This behaviour is used by encryption
3900 BIOs and some applications. This has the side effect that
3901 applications must explicitly clean up cipher contexts with
3902 EVP_CIPHER_CTX_cleanup() or they will leak memory.
3905 *) Check the values of dna and dnb in bn_mul_recursive before calling
3906 bn_mul_comba (a non zero value means the a or b arrays do not contain
3907 n2 elements) and fallback to bn_mul_normal if either is not zero.
3910 *) Fix escaping of non-ASCII characters when using the -subj option
3911 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
3914 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
3915 form for "surname", serialNumber has no short form.
3916 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
3917 therefore remove "mail" short name for "internet 7".
3918 The OID for unique identifiers in X509 certificates is
3919 x500UniqueIdentifier, not uniqueIdentifier.
3920 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
3923 *) Add an "init" command to the ENGINE config module and auto initialize
3924 ENGINEs. Without any "init" command the ENGINE will be initialized
3925 after all ctrl commands have been executed on it. If init=1 the
3926 ENGINE is initailized at that point (ctrls before that point are run
3927 on the uninitialized ENGINE and after on the initialized one). If
3928 init=0 then the ENGINE will not be iniatialized at all.
3931 *) Fix the 'app_verify_callback' interface so that the user-defined
3932 argument is actually passed to the callback: In the
3933 SSL_CTX_set_cert_verify_callback() prototype, the callback
3934 declaration has been changed from
3937 int (*cb)(X509_STORE_CTX *,void *);
3938 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
3939 i=s->ctx->app_verify_callback(&ctx)
3940 has been changed into
3941 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
3943 To update applications using SSL_CTX_set_cert_verify_callback(),
3944 a dummy argument can be added to their callback functions.
3945 [D. K. Smetters <smetters@parc.xerox.com>]
3947 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
3948 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
3950 *) Add and OPENSSL_LOAD_CONF define which will cause
3951 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
3952 This allows older applications to transparently support certain
3953 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
3954 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
3955 load the config file and OPENSSL_add_all_algorithms_conf() which will
3956 always load it have also been added.
3959 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
3960 Adjust NIDs and EVP layer.
3961 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
3963 *) Config modules support in openssl utility.
3965 Most commands now load modules from the config file,
3966 though in a few (such as version) this isn't done
3967 because it couldn't be used for anything.
3969 In the case of ca and req the config file used is
3970 the same as the utility itself: that is the -config
3971 command line option can be used to specify an
3975 *) Move default behaviour from OPENSSL_config(). If appname is NULL
3976 use "openssl_conf" if filename is NULL use default openssl config file.
3979 *) Add an argument to OPENSSL_config() to allow the use of an alternative
3980 config section name. Add a new flag to tolerate a missing config file
3981 and move code to CONF_modules_load_file().
3984 *) Support for crypto accelerator cards from Accelerated Encryption
3985 Processing, www.aep.ie. (Use engine 'aep')
3986 The support was copied from 0.9.6c [engine] and adapted/corrected
3987 to work with the new engine framework.
3988 [AEP Inc. and Richard Levitte]
3990 *) Support for SureWare crypto accelerator cards from Baltimore
3991 Technologies. (Use engine 'sureware')
3992 The support was copied from 0.9.6c [engine] and adapted
3993 to work with the new engine framework.
3996 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
3997 make the newer ENGINE framework commands for the CHIL engine work.
3998 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
4000 *) Make it possible to produce shared libraries on ReliantUNIX.
4001 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
4003 *) Add the configuration target debug-linux-ppro.
4004 Make 'openssl rsa' use the general key loading routines
4005 implemented in apps.c, and make those routines able to
4006 handle the key format FORMAT_NETSCAPE and the variant
4008 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4010 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
4011 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
4013 *) Add -keyform to rsautl, and document -engine.
4014 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
4016 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
4017 BIO_R_NO_SUCH_FILE error code rather than the generic
4018 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
4021 *) Add new functions
4023 ERR_peek_last_error_line
4024 ERR_peek_last_error_line_data.
4025 These are similar to
4028 ERR_peek_error_line_data,
4029 but report on the latest error recorded rather than the first one
4030 still in the error queue.
4031 [Ben Laurie, Bodo Moeller]
4033 *) default_algorithms option in ENGINE config module. This allows things
4035 default_algorithms = ALL
4036 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
4039 *) Prelminary ENGINE config module.
4042 *) New experimental application configuration code.
4045 *) Change the AES code to follow the same name structure as all other
4046 symmetric ciphers, and behave the same way. Move everything to
4047 the directory crypto/aes, thereby obsoleting crypto/rijndael.
4048 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
4050 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
4051 [Ben Laurie and Theo de Raadt]
4053 *) Add option to output public keys in req command.
4054 [Massimiliano Pala madwolf@openca.org]
4056 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
4057 (up to about 10% better than before for P-192 and P-224).
4060 *) New functions/macros
4062 SSL_CTX_set_msg_callback(ctx, cb)
4063 SSL_CTX_set_msg_callback_arg(ctx, arg)
4064 SSL_set_msg_callback(ssl, cb)
4065 SSL_set_msg_callback_arg(ssl, arg)
4067 to request calling a callback function
4069 void cb(int write_p, int version, int content_type,
4070 const void *buf, size_t len, SSL *ssl, void *arg)
4072 whenever a protocol message has been completely received
4073 (write_p == 0) or sent (write_p == 1). Here 'version' is the
4074 protocol version according to which the SSL library interprets
4075 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
4076 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
4077 the content type as defined in the SSL 3.0/TLS 1.0 protocol
4078 specification (change_cipher_spec(20), alert(21), handshake(22)).
4079 'buf' and 'len' point to the actual message, 'ssl' to the
4080 SSL object, and 'arg' is the application-defined value set by
4081 SSL[_CTX]_set_msg_callback_arg().
4083 'openssl s_client' and 'openssl s_server' have new '-msg' options
4084 to enable a callback that displays all protocol messages.
4087 *) Change the shared library support so shared libraries are built as
4088 soon as the corresponding static library is finished, and thereby get
4089 openssl and the test programs linked against the shared library.
4090 This still only happens when the keyword "shard" has been given to
4091 the configuration scripts.
4093 NOTE: shared library support is still an experimental thing, and
4094 backward binary compatibility is still not guaranteed.
4095 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
4097 *) Add support for Subject Information Access extension.
4098 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
4100 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
4101 additional bytes when new memory had to be allocated, not just
4102 when reusing an existing buffer.
4105 *) New command line and configuration option 'utf8' for the req command.
4106 This allows field values to be specified as UTF8 strings.
4109 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
4110 runs for the former and machine-readable output for the latter.
4113 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
4114 of the e-mail address in the DN (i.e., it will go into a certificate
4115 extension only). The new configuration file option 'email_in_dn = no'
4116 has the same effect.
4117 [Massimiliano Pala madwolf@openca.org]
4119 *) Change all functions with names starting with des_ to be starting
4120 with DES_ instead. Add wrappers that are compatible with libdes,
4121 but are named _ossl_old_des_*. Finally, add macros that map the
4122 des_* symbols to the corresponding _ossl_old_des_* if libdes
4123 compatibility is desired. If OpenSSL 0.9.6c compatibility is
4124 desired, the des_* symbols will be mapped to DES_*, with one
4127 Since we provide two compatibility mappings, the user needs to
4128 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
4129 compatibility is desired. The default (i.e., when that macro
4130 isn't defined) is OpenSSL 0.9.6c compatibility.
4132 There are also macros that enable and disable the support of old
4133 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
4134 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
4135 are defined, the default will apply: to support the old des routines.
4137 In either case, one must include openssl/des.h to get the correct
4138 definitions. Do not try to just include openssl/des_old.h, that
4141 NOTE: This is a major break of an old API into a new one. Software
4142 authors are encouraged to switch to the DES_ style functions. Some
4143 time in the future, des_old.h and the libdes compatibility functions
4144 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
4145 default), and then completely removed.
4148 *) Test for certificates which contain unsupported critical extensions.
4149 If such a certificate is found during a verify operation it is
4150 rejected by default: this behaviour can be overridden by either
4151 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
4152 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
4153 X509_supported_extension() has also been added which returns 1 if a
4154 particular extension is supported.
4157 *) Modify the behaviour of EVP cipher functions in similar way to digests
4158 to retain compatibility with existing code.
4161 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
4162 compatibility with existing code. In particular the 'ctx' parameter does
4163 not have to be to be initialized before the call to EVP_DigestInit() and
4164 it is tidied up after a call to EVP_DigestFinal(). New function
4165 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
4166 EVP_MD_CTX_copy() changed to not require the destination to be
4167 initialized valid and new function EVP_MD_CTX_copy_ex() added which
4168 requires the destination to be valid.
4170 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
4171 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
4174 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
4175 so that complete 'Handshake' protocol structures are kept in memory
4176 instead of overwriting 'msg_type' and 'length' with 'body' data.
4179 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
4180 [Massimo Santin via Richard Levitte]
4182 *) Major restructuring to the underlying ENGINE code. This includes
4183 reduction of linker bloat, separation of pure "ENGINE" manipulation
4184 (initialisation, etc) from functionality dealing with implementations
4185 of specific crypto iterfaces. This change also introduces integrated
4186 support for symmetric ciphers and digest implementations - so ENGINEs
4187 can now accelerate these by providing EVP_CIPHER and EVP_MD
4188 implementations of their own. This is detailed in crypto/engine/README
4189 as it couldn't be adequately described here. However, there are a few
4190 API changes worth noting - some RSA, DSA, DH, and RAND functions that
4191 were changed in the original introduction of ENGINE code have now
4192 reverted back - the hooking from this code to ENGINE is now a good
4193 deal more passive and at run-time, operations deal directly with
4194 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
4195 dereferencing through an ENGINE pointer any more. Also, the ENGINE
4196 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
4197 they were not being used by the framework as there is no concept of a
4198 BIGNUM_METHOD and they could not be generalised to the new
4199 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
4200 ENGINE_cpy() has been removed as it cannot be consistently defined in
4204 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
4207 *) Change mkdef.pl to sort symbols that get the same entry number,
4208 and make sure the automatically generated functions ERR_load_*
4209 become part of libeay.num as well.
4212 *) New function SSL_renegotiate_pending(). This returns true once
4213 renegotiation has been requested (either SSL_renegotiate() call
4214 or HelloRequest/ClientHello receveived from the peer) and becomes
4215 false once a handshake has been completed.
4216 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
4217 sends a HelloRequest, but does not ensure that a handshake takes
4218 place. SSL_renegotiate_pending() is useful for checking if the
4219 client has followed the request.)
4222 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
4223 By default, clients may request session resumption even during
4224 renegotiation (if session ID contexts permit); with this option,
4225 session resumption is possible only in the first handshake.
4227 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
4228 more bits available for options that should not be part of
4229 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
4232 *) Add some demos for certificate and certificate request creation.
4235 *) Make maximum certificate chain size accepted from the peer application
4236 settable (SSL*_get/set_max_cert_list()), as proposed by
4237 "Douglas E. Engert" <deengert@anl.gov>.
4240 *) Add support for shared libraries for Unixware-7
4241 (Boyd Lynn Gerber <gerberb@zenez.com>).
4244 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
4245 be done prior to destruction. Use this to unload error strings from
4246 ENGINEs that load their own error strings. NB: This adds two new API
4247 functions to "get" and "set" this destroy handler in an ENGINE.
4250 *) Alter all existing ENGINE implementations (except "openssl" and
4251 "openbsd") to dynamically instantiate their own error strings. This
4252 makes them more flexible to be built both as statically-linked ENGINEs
4253 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
4254 Also, add stub code to each that makes building them as self-contained
4255 shared-libraries easier (see README.ENGINE).
4258 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
4259 implementations into applications that are completely implemented in
4260 self-contained shared-libraries. The "dynamic" ENGINE exposes control
4261 commands that can be used to configure what shared-library to load and
4262 to control aspects of the way it is handled. Also, made an update to
4263 the README.ENGINE file that brings its information up-to-date and
4264 provides some information and instructions on the "dynamic" ENGINE
4265 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
4268 *) Make it possible to unload ranges of ERR strings with a new
4269 "ERR_unload_strings" function.
4272 *) Add a copy() function to EVP_MD.
4275 *) Make EVP_MD routines take a context pointer instead of just the
4276 md_data void pointer.
4279 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
4280 that the digest can only process a single chunk of data
4281 (typically because it is provided by a piece of
4282 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
4283 is only going to provide a single chunk of data, and hence the
4284 framework needn't accumulate the data for oneshot drivers.
4287 *) As with "ERR", make it possible to replace the underlying "ex_data"
4288 functions. This change also alters the storage and management of global
4289 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
4290 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
4291 index counters. The API functions that use this state have been changed
4292 to take a "class_index" rather than pointers to the class's local STACK
4293 and counter, and there is now an API function to dynamically create new
4294 classes. This centralisation allows us to (a) plug a lot of the
4295 thread-safety problems that existed, and (b) makes it possible to clean
4296 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
4297 such data would previously have always leaked in application code and
4298 workarounds were in place to make the memory debugging turn a blind eye
4299 to it. Application code that doesn't use this new function will still
4300 leak as before, but their memory debugging output will announce it now
4301 rather than letting it slide.
4303 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
4304 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
4305 has a return value to indicate success or failure.
4308 *) Make it possible to replace the underlying "ERR" functions such that the
4309 global state (2 LHASH tables and 2 locks) is only used by the "default"
4310 implementation. This change also adds two functions to "get" and "set"
4311 the implementation prior to it being automatically set the first time
4312 any other ERR function takes place. Ie. an application can call "get",
4313 pass the return value to a module it has just loaded, and that module
4314 can call its own "set" function using that value. This means the
4315 module's "ERR" operations will use (and modify) the error state in the
4316 application and not in its own statically linked copy of OpenSSL code.
4319 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
4320 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
4321 the operation, and provides a more encapsulated way for external code
4322 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
4323 to use these functions rather than manually incrementing the counts.
4325 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
4328 *) Add EVP test program.
4331 *) Add symmetric cipher support to ENGINE. Expect the API to change!
4334 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
4335 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
4336 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
4337 These allow a CRL to be built without having to access X509_CRL fields
4338 directly. Modify 'ca' application to use new functions.
4341 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
4342 bug workarounds. Rollback attack detection is a security feature.
4343 The problem will only arise on OpenSSL servers when TLSv1 is not
4344 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
4345 Software authors not wanting to support TLSv1 will have special reasons
4346 for their choice and can explicitly enable this option.
4347 [Bodo Moeller, Lutz Jaenicke]
4349 *) Rationalise EVP so it can be extended: don't include a union of
4350 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
4351 (similar to those existing for EVP_CIPHER_CTX).
4356 EVP_MD_CTX_init(&md); /* new function call */
4357 EVP_DigestInit(&md, EVP_sha1());
4358 EVP_DigestUpdate(&md, in, len);
4359 EVP_DigestFinal(&md, out, NULL);
4360 EVP_MD_CTX_cleanup(&md); /* new function call */
4364 *) Make DES key schedule conform to the usual scheme, as well as
4365 correcting its structure. This means that calls to DES functions
4366 now have to pass a pointer to a des_key_schedule instead of a
4367 plain des_key_schedule (which was actually always a pointer
4370 des_key_schedule ks;
4372 des_set_key_checked(..., &ks);
4373 des_ncbc_encrypt(..., &ks, ...);
4375 (Note that a later change renames 'des_...' into 'DES_...'.)
4378 *) Initial reduction of linker bloat: the use of some functions, such as
4379 PEM causes large amounts of unused functions to be linked in due to
4380 poor organisation. For example pem_all.c contains every PEM function
4381 which has a knock on effect of linking in large amounts of (unused)
4382 ASN1 code. Grouping together similar functions and splitting unrelated
4383 functions prevents this.
4386 *) Cleanup of EVP macros.
4389 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
4390 correct _ecb suffix.
4393 *) Add initial OCSP responder support to ocsp application. The
4394 revocation information is handled using the text based index
4395 use by the ca application. The responder can either handle
4396 requests generated internally, supplied in files (for example
4397 via a CGI script) or using an internal minimal server.
4400 *) Add configuration choices to get zlib compression for TLS.
4403 *) Changes to Kerberos SSL for RFC 2712 compliance:
4404 1. Implemented real KerberosWrapper, instead of just using
4405 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
4406 2. Implemented optional authenticator field of KerberosWrapper.
4408 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
4409 and authenticator structs; see crypto/krb5/.
4411 Generalized Kerberos calls to support multiple Kerberos libraries.
4412 [Vern Staats <staatsvr@asc.hpc.mil>,
4413 Jeffrey Altman <jaltman@columbia.edu>
4414 via Richard Levitte]
4416 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
4417 already does with RSA. testdsa.h now has 'priv_key/pub_key'
4418 values for each of the key sizes rather than having just
4419 parameters (and 'speed' generating keys each time).
4422 *) Speed up EVP routines.
4425 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
4426 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
4427 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
4428 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
4430 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
4431 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
4432 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
4435 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
4437 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
4440 *) Added the OS2-EMX target.
4441 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
4443 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
4444 to support NCONF routines in extension code. New function CONF_set_nconf()
4445 to allow functions which take an NCONF to also handle the old LHASH
4446 structure: this means that the old CONF compatible routines can be
4447 retained (in particular wrt extensions) without having to duplicate the
4448 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
4451 *) Enhance the general user interface with mechanisms for inner control
4452 and with possibilities to have yes/no kind of prompts.
4455 *) Change all calls to low level digest routines in the library and
4456 applications to use EVP. Add missing calls to HMAC_cleanup() and
4457 don't assume HMAC_CTX can be copied using memcpy().
4458 [Verdon Walker <VWalker@novell.com>, Steve Henson]
4460 *) Add the possibility to control engines through control names but with
4461 arbitrary arguments instead of just a string.
4462 Change the key loaders to take a UI_METHOD instead of a callback
4463 function pointer. NOTE: this breaks binary compatibility with earlier
4464 versions of OpenSSL [engine].
4465 Adapt the nCipher code for these new conditions and add a card insertion
4469 *) Enhance the general user interface with mechanisms to better support
4470 dialog box interfaces, application-defined prompts, the possibility
4471 to use defaults (for example default passwords from somewhere else)
4472 and interrupts/cancellations.
4475 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
4476 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
4479 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
4480 tidy up some unnecessarily weird code in 'sk_new()').
4481 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
4483 *) Change the key loading routines for ENGINEs to use the same kind
4484 callback (pem_password_cb) as all other routines that need this
4488 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
4489 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
4490 than this minimum value is recommended.
4493 *) New random seeder for OpenVMS, using the system process statistics
4494 that are easily reachable.
4497 *) Windows apparently can't transparently handle global
4498 variables defined in DLLs. Initialisations such as:
4500 const ASN1_ITEM *it = &ASN1_INTEGER_it;
4502 wont compile. This is used by the any applications that need to
4503 declare their own ASN1 modules. This was fixed by adding the option
4504 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
4505 needed for static libraries under Win32.
4508 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
4509 setting of purpose and trust fields. New X509_STORE trust and
4510 purpose functions and tidy up setting in other SSL functions.
4513 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
4514 structure. These are inherited by X509_STORE_CTX when it is
4515 initialised. This allows various defaults to be set in the
4516 X509_STORE structure (such as flags for CRL checking and custom
4517 purpose or trust settings) for functions which only use X509_STORE_CTX
4518 internally such as S/MIME.
4520 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
4521 trust settings if they are not set in X509_STORE. This allows X509_STORE
4522 purposes and trust (in S/MIME for example) to override any set by default.
4524 Add command line options for CRL checking to smime, s_client and s_server
4528 *) Initial CRL based revocation checking. If the CRL checking flag(s)
4529 are set then the CRL is looked up in the X509_STORE structure and
4530 its validity and signature checked, then if the certificate is found
4531 in the CRL the verify fails with a revoked error.
4533 Various new CRL related callbacks added to X509_STORE_CTX structure.
4535 Command line options added to 'verify' application to support this.
4537 This needs some additional work, such as being able to handle multiple
4538 CRLs with different times, extension based lookup (rather than just
4539 by subject name) and ultimately more complete V2 CRL extension
4543 *) Add a general user interface API (crypto/ui/). This is designed
4544 to replace things like des_read_password and friends (backward
4545 compatibility functions using this new API are provided).
4546 The purpose is to remove prompting functions from the DES code
4547 section as well as provide for prompting through dialog boxes in
4548 a window system and the like.
4551 *) Add "ex_data" support to ENGINE so implementations can add state at a
4552 per-structure level rather than having to store it globally.
4555 *) Make it possible for ENGINE structures to be copied when retrieved by
4556 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
4557 This causes the "original" ENGINE structure to act like a template,
4558 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
4559 operational state can be localised to each ENGINE structure, despite the
4560 fact they all share the same "methods". New ENGINE structures returned in
4561 this case have no functional references and the return value is the single
4562 structural reference. This matches the single structural reference returned
4563 by ENGINE_by_id() normally, when it is incremented on the pre-existing
4567 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
4568 needs to match any other type at all we need to manually clear the
4572 *) Changes to the "openssl engine" utility to include;
4573 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
4574 about an ENGINE's available control commands.
4575 - executing control commands from command line arguments using the
4576 '-pre' and '-post' switches. '-post' is only used if '-t' is
4577 specified and the ENGINE is successfully initialised. The syntax for
4578 the individual commands are colon-separated, for example;
4579 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
4582 *) New dynamic control command support for ENGINEs. ENGINEs can now
4583 declare their own commands (numbers), names (strings), descriptions,
4584 and input types for run-time discovery by calling applications. A
4585 subset of these commands are implicitly classed as "executable"
4586 depending on their input type, and only these can be invoked through
4587 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
4588 can be based on user input, config files, etc). The distinction is
4589 that "executable" commands cannot return anything other than a boolean
4590 result and can only support numeric or string input, whereas some
4591 discoverable commands may only be for direct use through
4592 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
4593 pointers, or other custom uses. The "executable" commands are to
4594 support parameterisations of ENGINE behaviour that can be
4595 unambiguously defined by ENGINEs and used consistently across any
4596 OpenSSL-based application. Commands have been added to all the
4597 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
4598 control over shared-library paths without source code alterations.
4601 *) Changed all ENGINE implementations to dynamically allocate their
4602 ENGINEs rather than declaring them statically. Apart from this being
4603 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
4604 this also allows the implementations to compile without using the
4605 internal engine_int.h header.
4608 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
4609 'const' value. Any code that should be able to modify a RAND_METHOD
4610 should already have non-const pointers to it (ie. they should only
4611 modify their own ones).
4614 *) Made a variety of little tweaks to the ENGINE code.
4615 - "atalla" and "ubsec" string definitions were moved from header files
4616 to C code. "nuron" string definitions were placed in variables
4617 rather than hard-coded - allowing parameterisation of these values
4618 later on via ctrl() commands.
4619 - Removed unused "#if 0"'d code.
4620 - Fixed engine list iteration code so it uses ENGINE_free() to release
4621 structural references.
4622 - Constified the RAND_METHOD element of ENGINE structures.
4623 - Constified various get/set functions as appropriate and added
4624 missing functions (including a catch-all ENGINE_cpy that duplicates
4625 all ENGINE values onto a new ENGINE except reference counts/state).
4626 - Removed NULL parameter checks in get/set functions. Setting a method
4627 or function to NULL is a way of cancelling out a previously set
4628 value. Passing a NULL ENGINE parameter is just plain stupid anyway
4629 and doesn't justify the extra error symbols and code.
4630 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
4631 flags from engine_int.h to engine.h.
4632 - Changed prototypes for ENGINE handler functions (init(), finish(),
4633 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
4636 *) Implement binary inversion algorithm for BN_mod_inverse in addition
4637 to the algorithm using long division. The binary algorithm can be
4638 used only if the modulus is odd. On 32-bit systems, it is faster
4639 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
4640 roughly 5-15% for 256-bit moduli), so we use it only for moduli
4641 up to 450 bits. In 64-bit environments, the binary algorithm
4642 appears to be advantageous for much longer moduli; here we use it
4643 for moduli up to 2048 bits.
4646 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
4647 could not support the combine flag in choice fields.
4650 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
4651 extensions from a certificate request to the certificate.
4654 *) Allow multiple 'certopt' and 'nameopt' options to be separated
4655 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
4656 file: this allows the display of the certificate about to be
4657 signed to be customised, to allow certain fields to be included
4658 or excluded and extension details. The old system didn't display
4659 multicharacter strings properly, omitted fields not in the policy
4660 and couldn't display additional details such as extensions.
4663 *) Function EC_POINTs_mul for multiple scalar multiplication
4664 of an arbitrary number of elliptic curve points
4665 \sum scalars[i]*points[i],
4666 optionally including the generator defined for the EC_GROUP:
4667 scalar*generator + \sum scalars[i]*points[i].
4669 EC_POINT_mul is a simple wrapper function for the typical case
4670 that the point list has just one item (besides the optional
4674 *) First EC_METHODs for curves over GF(p):
4676 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
4677 operations and provides various method functions that can also
4678 operate with faster implementations of modular arithmetic.
4680 EC_GFp_mont_method() reuses most functions that are part of
4681 EC_GFp_simple_method, but uses Montgomery arithmetic.
4683 [Bodo Moeller; point addition and point doubling
4684 implementation directly derived from source code provided by
4685 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
4687 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
4688 crypto/ec/ec_lib.c):
4690 Curves are EC_GROUP objects (with an optional group generator)
4691 based on EC_METHODs that are built into the library.
4693 Points are EC_POINT objects based on EC_GROUP objects.
4695 Most of the framework would be able to handle curves over arbitrary
4696 finite fields, but as there are no obvious types for fields other
4697 than GF(p), some functions are limited to that for now.
4700 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
4701 that the file contains a complete HTTP response.
4704 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
4705 change the def and num file printf format specifier from "%-40sXXX"
4706 to "%-39s XXX". The latter will always guarantee a space after the
4707 field while the former will cause them to run together if the field
4708 is 40 of more characters long.
4711 *) Constify the cipher and digest 'method' functions and structures
4712 and modify related functions to take constant EVP_MD and EVP_CIPHER
4716 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
4717 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
4720 *) Modify EVP_Digest*() routines so they now return values. Although the
4721 internal software routines can never fail additional hardware versions
4725 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
4727 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
4728 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
4731 ERR_R_NESTED_ASN1_ERROR
4733 ERR_R_MISSING_ASN1_EOS
4734 were 4 .. 9, conflicting with
4735 ERR_LIB_RSA (= ERR_R_RSA_LIB)
4737 ERR_LIB_PEM (= ERR_R_PEM_LIB).
4738 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
4740 Add new error code 'ERR_R_INTERNAL_ERROR'.
4743 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
4747 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
4748 sets the subject name for a new request or supersedes the
4749 subject name in a given request. Formats that can be parsed are
4750 'CN=Some Name, OU=myOU, C=IT'
4752 'CN=Some Name/OU=myOU/C=IT'.
4754 Add options '-batch' and '-verbose' to 'openssl req'.
4755 [Massimiliano Pala <madwolf@hackmasters.net>]
4757 *) Introduce the possibility to access global variables through
4758 functions on platform were that's the best way to handle exporting
4759 global variables in shared libraries. To enable this functionality,
4760 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
4761 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
4762 is normally done by Configure or something similar).
4764 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
4765 in the source file (foo.c) like this:
4767 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
4768 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
4770 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
4771 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
4773 OPENSSL_DECLARE_GLOBAL(int,foo);
4774 #define foo OPENSSL_GLOBAL_REF(foo)
4775 OPENSSL_DECLARE_GLOBAL(double,bar);
4776 #define bar OPENSSL_GLOBAL_REF(bar)
4778 The #defines are very important, and therefore so is including the
4779 header file everywhere where the defined globals are used.
4781 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
4782 of ASN.1 items, but that structure is a bit different.
4784 The largest change is in util/mkdef.pl which has been enhanced with
4785 better and easier to understand logic to choose which symbols should
4786 go into the Windows .def files as well as a number of fixes and code
4787 cleanup (among others, algorithm keywords are now sorted
4788 lexicographically to avoid constant rewrites).
4791 *) In BN_div() keep a copy of the sign of 'num' before writing the
4792 result to 'rm' because if rm==num the value will be overwritten
4793 and produce the wrong result if 'num' is negative: this caused
4794 problems with BN_mod() and BN_nnmod().
4797 *) Function OCSP_request_verify(). This checks the signature on an
4798 OCSP request and verifies the signer certificate. The signer
4799 certificate is just checked for a generic purpose and OCSP request
4803 *) Add OCSP_check_validity() function to check the validity of OCSP
4804 responses. OCSP responses are prepared in real time and may only
4805 be a few seconds old. Simply checking that the current time lies
4806 between thisUpdate and nextUpdate max reject otherwise valid responses
4807 caused by either OCSP responder or client clock inaccuracy. Instead
4808 we allow thisUpdate and nextUpdate to fall within a certain period of
4809 the current time. The age of the response can also optionally be
4810 checked. Two new options -validity_period and -status_age added to
4814 *) If signature or public key algorithm is unrecognized print out its
4815 OID rather that just UNKNOWN.
4818 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
4819 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
4820 ID to be generated from the issuer certificate alone which can then be
4821 passed to OCSP_id_issuer_cmp().
4824 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
4825 ASN1 modules to export functions returning ASN1_ITEM pointers
4826 instead of the ASN1_ITEM structures themselves. This adds several
4827 new macros which allow the underlying ASN1 function/structure to
4828 be accessed transparently. As a result code should not use ASN1_ITEM
4829 references directly (such as &X509_it) but instead use the relevant
4830 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
4831 use of the new ASN1 code on platforms where exporting structures
4832 is problematical (for example in shared libraries) but exporting
4833 functions returning pointers to structures is not.
4836 *) Add support for overriding the generation of SSL/TLS session IDs.
4837 These callbacks can be registered either in an SSL_CTX or per SSL.
4838 The purpose of this is to allow applications to control, if they wish,
4839 the arbitrary values chosen for use as session IDs, particularly as it
4840 can be useful for session caching in multiple-server environments. A
4841 command-line switch for testing this (and any client code that wishes
4842 to use such a feature) has been added to "s_server".
4843 [Geoff Thorpe, Lutz Jaenicke]
4845 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
4846 of the form '#if defined(...) || defined(...) || ...' and
4847 '#if !defined(...) && !defined(...) && ...'. This also avoids
4848 the growing number of special cases it was previously handling.
4851 *) Make all configuration macros available for application by making
4852 sure they are available in opensslconf.h, by giving them names starting
4853 with "OPENSSL_" to avoid conflicts with other packages and by making
4854 sure e_os2.h will cover all platform-specific cases together with
4856 Additionally, it is now possible to define configuration/platform-
4857 specific names (called "system identities"). In the C code, these
4858 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
4859 macro with the name beginning with "OPENSSL_SYS_", which is determined
4860 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
4864 *) New option -set_serial to 'req' and 'x509' this allows the serial
4865 number to use to be specified on the command line. Previously self
4866 signed certificates were hard coded with serial number 0 and the
4867 CA options of 'x509' had to use a serial number in a file which was
4871 *) New options to 'ca' utility to support V2 CRL entry extensions.
4872 Currently CRL reason, invalidity date and hold instruction are
4873 supported. Add new CRL extensions to V3 code and some new objects.
4876 *) New function EVP_CIPHER_CTX_set_padding() this is used to
4877 disable standard block padding (aka PKCS#5 padding) in the EVP
4878 API, which was previously mandatory. This means that the data is
4879 not padded in any way and so the total length much be a multiple
4880 of the block size, otherwise an error occurs.
4883 *) Initial (incomplete) OCSP SSL support.
4886 *) New function OCSP_parse_url(). This splits up a URL into its host,
4887 port and path components: primarily to parse OCSP URLs. New -url
4888 option to ocsp utility.
4891 *) New nonce behavior. The return value of OCSP_check_nonce() now
4892 reflects the various checks performed. Applications can decide
4893 whether to tolerate certain situations such as an absent nonce
4894 in a response when one was present in a request: the ocsp application
4895 just prints out a warning. New function OCSP_add1_basic_nonce()
4896 this is to allow responders to include a nonce in a response even if
4897 the request is nonce-less.
4900 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
4901 skipped when using openssl x509 multiple times on a single input file,
4902 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
4905 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
4906 set string type: to handle setting ASN1_TIME structures. Fix ca
4907 utility to correctly initialize revocation date of CRLs.
4910 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
4911 the clients preferred ciphersuites and rather use its own preferences.
4912 Should help to work around M$ SGC (Server Gated Cryptography) bug in
4913 Internet Explorer by ensuring unchanged hash method during stepup.
4914 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
4917 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
4918 to aes and add a new 'exist' option to print out symbols that don't
4922 *) Additional options to ocsp utility to allow flags to be set and
4923 additional certificates supplied.
4926 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
4927 OCSP client a number of certificate to only verify the response
4931 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
4932 handle the new API. Currently only ECB, CBC modes supported. Add new
4935 Add TLS AES ciphersuites as described in RFC3268, "Advanced
4936 Encryption Standard (AES) Ciphersuites for Transport Layer
4937 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
4938 not enabled by default and were not part of the "ALL" ciphersuite
4939 alias because they were not yet official; they could be
4940 explicitly requested by specifying the "AESdraft" ciphersuite
4941 group alias. In the final release of OpenSSL 0.9.7, the group
4942 alias is called "AES" and is part of "ALL".)
4943 [Ben Laurie, Steve Henson, Bodo Moeller]
4945 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
4946 request to response.
4949 *) Functions for OCSP responders. OCSP_request_onereq_count(),
4950 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
4951 extract information from a certificate request. OCSP_response_create()
4952 creates a response and optionally adds a basic response structure.
4953 OCSP_basic_add1_status() adds a complete single response to a basic
4954 response and returns the OCSP_SINGLERESP structure just added (to allow
4955 extensions to be included for example). OCSP_basic_add1_cert() adds a
4956 certificate to a basic response and OCSP_basic_sign() signs a basic
4957 response with various flags. New helper functions ASN1_TIME_check()
4958 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
4959 (converts ASN1_TIME to GeneralizedTime).
4962 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
4963 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
4964 structure from a certificate. X509_pubkey_digest() digests the public_key
4965 contents: this is used in various key identifiers.
4968 *) Make sk_sort() tolerate a NULL argument.
4969 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
4971 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
4972 passed by the function are trusted implicitly. If any of them signed the
4973 response then it is assumed to be valid and is not verified.
4976 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
4977 to data. This was previously part of the PKCS7 ASN1 code. This
4978 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
4979 [Steve Henson, reported by Kenneth R. Robinette
4980 <support@securenetterm.com>]
4982 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
4983 routines: without these tracing memory leaks is very painful.
4984 Fix leaks in PKCS12 and PKCS7 routines.
4987 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
4988 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
4989 effectively meant GeneralizedTime would never be used. Now it
4990 is initialised to -1 but X509_time_adj() now has to check the value
4991 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
4992 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
4993 [Steve Henson, reported by Kenneth R. Robinette
4994 <support@securenetterm.com>]
4996 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
4997 result in a zero length in the ASN1_INTEGER structure which was
4998 not consistent with the structure when d2i_ASN1_INTEGER() was used
4999 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
5000 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
5001 where it did not print out a minus for negative ASN1_INTEGER.
5004 *) Add summary printout to ocsp utility. The various functions which
5005 convert status values to strings have been renamed to:
5006 OCSP_response_status_str(), OCSP_cert_status_str() and
5007 OCSP_crl_reason_str() and are no longer static. New options
5008 to verify nonce values and to disable verification. OCSP response
5009 printout format cleaned up.
5012 *) Add additional OCSP certificate checks. These are those specified
5013 in RFC2560. This consists of two separate checks: the CA of the
5014 certificate being checked must either be the OCSP signer certificate
5015 or the issuer of the OCSP signer certificate. In the latter case the
5016 OCSP signer certificate must contain the OCSP signing extended key
5017 usage. This check is performed by attempting to match the OCSP
5018 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
5019 in the OCSP_CERTID structures of the response.
5022 *) Initial OCSP certificate verification added to OCSP_basic_verify()
5023 and related routines. This uses the standard OpenSSL certificate
5024 verify routines to perform initial checks (just CA validity) and
5025 to obtain the certificate chain. Then additional checks will be
5026 performed on the chain. Currently the root CA is checked to see
5027 if it is explicitly trusted for OCSP signing. This is used to set
5028 a root CA as a global signing root: that is any certificate that
5029 chains to that CA is an acceptable OCSP signing certificate.
5032 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
5033 extensions from a separate configuration file.
5034 As when reading extensions from the main configuration file,
5035 the '-extensions ...' option may be used for specifying the
5037 [Massimiliano Pala <madwolf@comune.modena.it>]
5039 *) New OCSP utility. Allows OCSP requests to be generated or
5040 read. The request can be sent to a responder and the output
5041 parsed, outputed or printed in text form. Not complete yet:
5042 still needs to check the OCSP response validity.
5045 *) New subcommands for 'openssl ca':
5046 'openssl ca -status <serial>' prints the status of the cert with
5047 the given serial number (according to the index file).
5048 'openssl ca -updatedb' updates the expiry status of certificates
5050 [Massimiliano Pala <madwolf@comune.modena.it>]
5052 *) New '-newreq-nodes' command option to CA.pl. This is like
5053 '-newreq', but calls 'openssl req' with the '-nodes' option
5054 so that the resulting key is not encrypted.
5055 [Damien Miller <djm@mindrot.org>]
5057 *) New configuration for the GNU Hurd.
5058 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
5060 *) Initial code to implement OCSP basic response verify. This
5061 is currently incomplete. Currently just finds the signer's
5062 certificate and verifies the signature on the response.
5065 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
5066 value of OPENSSLDIR. This is available via the new '-d' option
5067 to 'openssl version', and is also included in 'openssl version -a'.
5070 *) Allowing defining memory allocation callbacks that will be given
5071 file name and line number information in additional arguments
5072 (a const char* and an int). The basic functionality remains, as
5073 well as the original possibility to just replace malloc(),
5074 realloc() and free() by functions that do not know about these
5075 additional arguments. To register and find out the current
5076 settings for extended allocation functions, the following
5077 functions are provided:
5079 CRYPTO_set_mem_ex_functions
5080 CRYPTO_set_locked_mem_ex_functions
5081 CRYPTO_get_mem_ex_functions
5082 CRYPTO_get_locked_mem_ex_functions
5084 These work the same way as CRYPTO_set_mem_functions and friends.
5085 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
5086 extended allocation function is enabled.
5087 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
5088 a conventional allocation function is enabled.
5089 [Richard Levitte, Bodo Moeller]
5091 *) Finish off removing the remaining LHASH function pointer casts.
5092 There should no longer be any prototype-casting required when using
5093 the LHASH abstraction, and any casts that remain are "bugs". See
5094 the callback types and macros at the head of lhash.h for details
5095 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
5098 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
5099 If /dev/[u]random devices are not available or do not return enough
5100 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
5102 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
5103 /etc/entropy will be queried once each in this sequence, quering stops
5104 when enough entropy was collected without querying more sockets.
5107 *) Change the Unix RAND_poll() variant to be able to poll several
5108 random devices, as specified by DEVRANDOM, until a sufficient amount
5109 of data has been collected. We spend at most 10 ms on each file
5110 (select timeout) and read in non-blocking mode. DEVRANDOM now
5111 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
5112 (previously it was just the string "/dev/urandom"), so on typical
5113 platforms the 10 ms delay will never occur.
5114 Also separate out the Unix variant to its own file, rand_unix.c.
5115 For VMS, there's a currently-empty rand_vms.c.
5118 *) Move OCSP client related routines to ocsp_cl.c. These
5119 provide utility functions which an application needing
5120 to issue a request to an OCSP responder and analyse the
5121 response will typically need: as opposed to those which an
5122 OCSP responder itself would need which will be added later.
5124 OCSP_request_sign() signs an OCSP request with an API similar
5125 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
5126 response. OCSP_response_get1_basic() extracts basic response
5127 from response. OCSP_resp_find_status(): finds and extracts status
5128 information from an OCSP_CERTID structure (which will be created
5129 when the request structure is built). These are built from lower
5130 level functions which work on OCSP_SINGLERESP structures but
5131 wont normally be used unless the application wishes to examine
5132 extensions in the OCSP response for example.
5134 Replace nonce routines with a pair of functions.
5135 OCSP_request_add1_nonce() adds a nonce value and optionally
5136 generates a random value. OCSP_check_nonce() checks the
5137 validity of the nonce in an OCSP response.
5140 *) Change function OCSP_request_add() to OCSP_request_add0_id().
5141 This doesn't copy the supplied OCSP_CERTID and avoids the
5142 need to free up the newly created id. Change return type
5143 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
5144 This can then be used to add extensions to the request.
5145 Deleted OCSP_request_new(), since most of its functionality
5146 is now in OCSP_REQUEST_new() (and the case insensitive name
5147 clash) apart from the ability to set the request name which
5148 will be added elsewhere.
5151 *) Update OCSP API. Remove obsolete extensions argument from
5152 various functions. Extensions are now handled using the new
5153 OCSP extension code. New simple OCSP HTTP function which
5154 can be used to send requests and parse the response.
5157 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
5158 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
5159 uses the special reorder version of SET OF to sort the attributes
5160 and reorder them to match the encoded order. This resolves a long
5161 standing problem: a verify on a PKCS7 structure just after signing
5162 it used to fail because the attribute order did not match the
5163 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
5164 it uses the received order. This is necessary to tolerate some broken
5165 software that does not order SET OF. This is handled by encoding
5166 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
5167 to produce the required SET OF.
5170 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
5171 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
5172 files to get correct declarations of the ASN.1 item variables.
5175 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
5176 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
5177 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
5178 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
5179 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
5180 ASN1_ITEM and no wrapper functions.
5183 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
5184 replace the old function pointer based I/O routines. Change most of
5185 the *_d2i_bio() and *_d2i_fp() functions to use these.
5188 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
5189 lines, recognice more "algorithms" that can be deselected, and make
5190 it complain about algorithm deselection that isn't recognised.
5193 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
5194 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
5195 to use new functions. Add NO_ASN1_OLD which can be set to remove
5196 some old style ASN1 functions: this can be used to determine if old
5197 code will still work when these eventually go away.
5200 *) New extension functions for OCSP structures, these follow the
5201 same conventions as certificates and CRLs.
5204 *) New function X509V3_add1_i2d(). This automatically encodes and
5205 adds an extension. Its behaviour can be customised with various
5206 flags to append, replace or delete. Various wrappers added for
5207 certifcates and CRLs.
5210 *) Fix to avoid calling the underlying ASN1 print routine when
5211 an extension cannot be parsed. Correct a typo in the
5212 OCSP_SERVICELOC extension. Tidy up print OCSP format.
5215 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
5216 entries for variables.
5219 *) Add functionality to apps/openssl.c for detecting locking
5220 problems: As the program is single-threaded, all we have
5221 to do is register a locking callback using an array for
5222 storing which locks are currently held by the program.
5225 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
5226 SSL_get_ex_data_X509_STORE_idx(), which is used in
5227 ssl_verify_cert_chain() and thus can be called at any time
5228 during TLS/SSL handshakes so that thread-safety is essential.
5229 Unfortunately, the ex_data design is not at all suited
5230 for multi-threaded use, so it probably should be abolished.
5233 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
5234 [Broadcom, tweaked and integrated by Geoff Thorpe]
5236 *) Move common extension printing code to new function
5237 X509V3_print_extensions(). Reorganise OCSP print routines and
5238 implement some needed OCSP ASN1 functions. Add OCSP extensions.
5241 *) New function X509_signature_print() to remove duplication in some
5245 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
5246 set (this was treated exactly the same as SET OF previously). This
5247 is used to reorder the STACK representing the structure to match the
5248 encoding. This will be used to get round a problem where a PKCS7
5249 structure which was signed could not be verified because the STACK
5250 order did not reflect the encoded order.
5253 *) Reimplement the OCSP ASN1 module using the new code.
5256 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
5257 for its ASN1 operations. The old style function pointers still exist
5258 for now but they will eventually go away.
5261 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
5262 completely replaces the old ASN1 functionality with a table driven
5263 encoder and decoder which interprets an ASN1_ITEM structure describing
5264 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
5265 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
5266 has also been converted to the new form.
5269 *) Change BN_mod_exp_recp so that negative moduli are tolerated
5270 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
5271 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
5272 for negative moduli.
5275 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
5276 of not touching the result's sign bit.
5279 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
5283 *) Changed the LHASH code to use prototypes for callbacks, and created
5284 macros to declare and implement thin (optionally static) functions
5285 that provide type-safety and avoid function pointer casting for the
5286 type-specific callbacks.
5289 *) Added Kerberos Cipher Suites to be used with TLS, as written in
5291 [Veers Staats <staatsvr@asc.hpc.mil>,
5292 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
5294 *) Reformat the FAQ so the different questions and answers can be divided
5295 in sections depending on the subject.
5298 *) Have the zlib compression code load ZLIB.DLL dynamically under
5302 *) New function BN_mod_sqrt for computing square roots modulo a prime
5303 (using the probabilistic Tonelli-Shanks algorithm unless
5304 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
5305 be handled deterministically).
5306 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5308 *) Make BN_mod_inverse faster by explicitly handling small quotients
5309 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
5310 512 bits], about 30% for larger ones [1024 or 2048 bits].)
5313 *) New function BN_kronecker.
5316 *) Fix BN_gcd so that it works on negative inputs; the result is
5317 positive unless both parameters are zero.
5318 Previously something reasonably close to an infinite loop was
5319 possible because numbers could be growing instead of shrinking
5320 in the implementation of Euclid's algorithm.
5323 *) Fix BN_is_word() and BN_is_one() macros to take into account the
5324 sign of the number in question.
5326 Fix BN_is_word(a,w) to work correctly for w == 0.
5328 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
5329 because its test if the absolute value of 'a' equals 'w'.
5330 Note that BN_abs_is_word does *not* handle w == 0 reliably;
5331 it exists mostly for use in the implementations of BN_is_zero(),
5332 BN_is_one(), and BN_is_word().
5335 *) New function BN_swap.
5338 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
5339 the exponentiation functions are more likely to produce reasonable
5340 results on negative inputs.
5343 *) Change BN_mod_mul so that the result is always non-negative.
5344 Previously, it could be negative if one of the factors was negative;
5345 I don't think anyone really wanted that behaviour.
5348 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
5349 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
5350 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
5351 and add new functions:
5360 BN_mod_lshift1_quick
5364 These functions always generate non-negative results.
5366 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
5367 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
5369 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
5370 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
5371 be reduced modulo m.
5372 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
5375 The following entry accidentily appeared in the CHANGES file
5376 distributed with OpenSSL 0.9.7. The modifications described in
5377 it do *not* apply to OpenSSL 0.9.7.
5379 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
5380 was actually never needed) and in BN_mul(). The removal in BN_mul()
5381 required a small change in bn_mul_part_recursive() and the addition
5382 of the functions bn_cmp_part_words(), bn_sub_part_words() and
5383 bn_add_part_words(), which do the same thing as bn_cmp_words(),
5384 bn_sub_words() and bn_add_words() except they take arrays with
5389 *) In 'openssl passwd', verify passwords read from the terminal
5390 unless the '-salt' option is used (which usually means that
5391 verification would just waste user's time since the resulting
5392 hash is going to be compared with some given password hash)
5393 or the new '-noverify' option is used.
5395 This is an incompatible change, but it does not affect
5396 non-interactive use of 'openssl passwd' (passwords on the command
5397 line, '-stdin' option, '-in ...' option) and thus should not
5401 *) Remove all references to RSAref, since there's no more need for it.
5404 *) Make DSO load along a path given through an environment variable
5405 (SHLIB_PATH) with shl_load().
5408 *) Constify the ENGINE code as a result of BIGNUM constification.
5409 Also constify the RSA code and most things related to it. In a
5410 few places, most notable in the depth of the ASN.1 code, ugly
5411 casts back to non-const were required (to be solved at a later
5415 *) Make it so the openssl application has all engines loaded by default.
5418 *) Constify the BIGNUM routines a little more.
5421 *) Add the following functions:
5423 ENGINE_load_cswift()
5425 ENGINE_load_atalla()
5427 ENGINE_load_builtin_engines()
5429 That way, an application can itself choose if external engines that
5430 are built-in in OpenSSL shall ever be used or not. The benefit is
5431 that applications won't have to be linked with libdl or other dso
5432 libraries unless it's really needed.
5434 Changed 'openssl engine' to load all engines on demand.
5435 Changed the engine header files to avoid the duplication of some
5436 declarations (they differed!).
5439 *) 'openssl engine' can now list capabilities.
5442 *) Better error reporting in 'openssl engine'.
5445 *) Never call load_dh_param(NULL) in s_server.
5448 *) Add engine application. It can currently list engines by name and
5449 identity, and test if they are actually available.
5452 *) Improve RPM specification file by forcing symbolic linking and making
5453 sure the installed documentation is also owned by root.root.
5454 [Damien Miller <djm@mindrot.org>]
5456 *) Give the OpenSSL applications more possibilities to make use of
5457 keys (public as well as private) handled by engines.
5460 *) Add OCSP code that comes from CertCo.
5463 *) Add VMS support for the Rijndael code.
5466 *) Added untested support for Nuron crypto accelerator.
5469 *) Add support for external cryptographic devices. This code was
5470 previously distributed separately as the "engine" branch.
5471 [Geoff Thorpe, Richard Levitte]
5473 *) Rework the filename-translation in the DSO code. It is now possible to
5474 have far greater control over how a "name" is turned into a filename
5475 depending on the operating environment and any oddities about the
5476 different shared library filenames on each system.
5479 *) Support threads on FreeBSD-elf in Configure.
5482 *) Fix for SHA1 assembly problem with MASM: it produces
5483 warnings about corrupt line number information when assembling
5484 with debugging information. This is caused by the overlapping
5486 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
5489 NCONF_get_number() has no error checking at all. As a replacement,
5490 NCONF_get_number_e() is defined (_e for "error checking") and is
5491 promoted strongly. The old NCONF_get_number is kept around for
5492 binary backward compatibility.
5493 Make it possible for methods to load from something other than a BIO,
5494 by providing a function pointer that is given a name instead of a BIO.
5495 For example, this could be used to load configuration data from an
5499 *) Fix for non blocking accept BIOs. Added new I/O special reason
5500 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
5501 with non blocking I/O was not possible because no retry code was
5502 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
5506 *) Added the beginnings of Rijndael support.
5509 *) Fix for bug in DirectoryString mask setting. Add support for
5510 X509_NAME_print_ex() in 'req' and X509_print_ex() function
5511 to allow certificate printing to more controllable, additional
5512 'certopt' option to 'x509' to allow new printing options to be
5516 *) Clean old EAY MD5 hack from e_os.h.
5519 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
5521 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
5522 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
5523 [Joe Orton, Steve Henson]
5525 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
5527 *) Fix additional bug revealed by the NISCC test suite:
5529 Stop bug triggering large recursion when presented with
5530 certain ASN.1 tags (CVE-2003-0851)
5533 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
5535 *) Fix various bugs revealed by running the NISCC test suite:
5537 Stop out of bounds reads in the ASN1 code when presented with
5538 invalid tags (CVE-2003-0543 and CVE-2003-0544).
5540 If verify callback ignores invalid public key errors don't try to check
5541 certificate signature with the NULL public key.
5545 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
5546 if the server requested one: as stated in TLS 1.0 and SSL 3.0
5550 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
5551 extra data after the compression methods not only for TLS 1.0
5552 but also for SSL 3.0 (as required by the specification).
5553 [Bodo Moeller; problem pointed out by Matthias Loepfe]
5555 *) Change X509_certificate_type() to mark the key as exported/exportable
5556 when it's 512 *bits* long, not 512 bytes.
5559 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
5561 *) Countermeasure against the Klima-Pokorny-Rosa extension of
5562 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
5563 a protocol version number mismatch like a decryption error
5564 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
5567 *) Turn on RSA blinding by default in the default implementation
5568 to avoid a timing attack. Applications that don't want it can call
5569 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
5570 They would be ill-advised to do so in most cases.
5571 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
5573 *) Change RSA blinding code so that it works when the PRNG is not
5574 seeded (in this case, the secret RSA exponent is abused as
5575 an unpredictable seed -- if it is not unpredictable, there
5576 is no point in blinding anyway). Make RSA blinding thread-safe
5577 by remembering the creator's thread ID in rsa->blinding and
5578 having all other threads use local one-time blinding factors
5579 (this requires more computation than sharing rsa->blinding, but
5580 avoids excessive locking; and if an RSA object is not shared
5581 between threads, blinding will still be very fast).
5584 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
5586 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
5587 via timing by performing a MAC computation even if incorrrect
5588 block cipher padding has been found. This is a countermeasure
5589 against active attacks where the attacker has to distinguish
5590 between bad padding and a MAC verification error. (CVE-2003-0078)
5592 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
5593 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
5594 Martin Vuagnoux (EPFL, Ilion)]
5596 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
5598 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
5599 memory from it's contents. This is done with a counter that will
5600 place alternating values in each byte. This can be used to solve
5601 two issues: 1) the removal of calls to memset() by highly optimizing
5602 compilers, and 2) cleansing with other values than 0, since those can
5603 be read through on certain media, for example a swap space on disk.
5606 *) Bugfix: client side session caching did not work with external caching,
5607 because the session->cipher setting was not restored when reloading
5608 from the external cache. This problem was masked, when
5609 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
5610 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
5613 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
5614 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
5615 [Zeev Lieber <zeev-l@yahoo.com>]
5617 *) Undo an undocumented change introduced in 0.9.6e which caused
5618 repeated calls to OpenSSL_add_all_ciphers() and
5619 OpenSSL_add_all_digests() to be ignored, even after calling
5623 *) Change the default configuration reader to deal with last line not
5624 being properly terminated.
5627 *) Change X509_NAME_cmp() so it applies the special rules on handling
5628 DN values that are of type PrintableString, as well as RDNs of type
5629 emailAddress where the value has the type ia5String.
5630 [stefank@valicert.com via Richard Levitte]
5632 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
5633 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
5634 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
5635 the bitwise-OR of the two for use by the majority of applications
5636 wanting this behaviour, and update the docs. The documented
5637 behaviour and actual behaviour were inconsistent and had been
5638 changing anyway, so this is more a bug-fix than a behavioural
5640 [Geoff Thorpe, diagnosed by Nadav Har'El]
5642 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
5643 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
5646 *) Fix initialization code race conditions in
5647 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
5648 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
5649 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
5650 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
5651 ssl2_get_cipher_by_char(),
5652 ssl3_get_cipher_by_char().
5653 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
5655 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
5656 the cached sessions are flushed, as the remove_cb() might use ex_data
5657 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
5658 (see [openssl.org #212]).
5659 [Geoff Thorpe, Lutz Jaenicke]
5661 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
5662 length, instead of the encoding length to d2i_ASN1_OBJECT.
5665 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
5667 *) [In 0.9.6g-engine release:]
5668 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
5669 [Lynn Gazis <lgazis@rainbow.com>]
5671 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
5673 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
5674 and get fix the header length calculation.
5675 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
5676 Alon Kantor <alonk@checkpoint.com> (and others),
5679 *) Use proper error handling instead of 'assertions' in buffer
5680 overflow checks added in 0.9.6e. This prevents DoS (the
5681 assertions could call abort()).
5682 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
5684 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
5686 *) Add various sanity checks to asn1_get_length() to reject
5687 the ASN1 length bytes if they exceed sizeof(long), will appear
5688 negative or the content length exceeds the length of the
5690 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5692 *) Fix cipher selection routines: ciphers without encryption had no flags
5693 for the cipher strength set and where therefore not handled correctly
5694 by the selection routines (PR #130).
5697 *) Fix EVP_dsa_sha macro.
5701 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
5702 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
5703 that was added in OpenSSL 0.9.6d.
5705 As the countermeasure turned out to be incompatible with some
5706 broken SSL implementations, the new option is part of SSL_OP_ALL.
5707 SSL_OP_ALL is usually employed when compatibility with weird SSL
5708 implementations is desired (e.g. '-bugs' option to 's_client' and
5709 's_server'), so the new option is automatically set in many
5713 *) Changes in security patch:
5715 Changes marked "(CHATS)" were sponsored by the Defense Advanced
5716 Research Projects Agency (DARPA) and Air Force Research Laboratory,
5717 Air Force Materiel Command, USAF, under agreement number
5720 *) Add various sanity checks to asn1_get_length() to reject
5721 the ASN1 length bytes if they exceed sizeof(long), will appear
5722 negative or the content length exceeds the length of the
5723 supplied buffer. (CVE-2002-0659)
5724 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
5726 *) Assertions for various potential buffer overflows, not known to
5728 [Ben Laurie (CHATS)]
5730 *) Various temporary buffers to hold ASCII versions of integers were
5731 too small for 64 bit platforms. (CVE-2002-0655)
5732 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
5734 *) Remote buffer overflow in SSL3 protocol - an attacker could
5735 supply an oversized session ID to a client. (CVE-2002-0656)
5736 [Ben Laurie (CHATS)]
5738 *) Remote buffer overflow in SSL2 protocol - an attacker could
5739 supply an oversized client master key. (CVE-2002-0656)
5740 [Ben Laurie (CHATS)]
5742 Changes between 0.9.6c and 0.9.6d [9 May 2002]
5744 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
5745 encoded as NULL) with id-dsa-with-sha1.
5746 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
5748 *) Check various X509_...() return values in apps/req.c.
5749 [Nils Larsch <nla@trustcenter.de>]
5751 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
5752 an end-of-file condition would erronously be flagged, when the CRLF
5753 was just at the end of a processed block. The bug was discovered when
5754 processing data through a buffering memory BIO handing the data to a
5755 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
5756 <ptsekov@syntrex.com> and Nedelcho Stanev.
5759 *) Implement a countermeasure against a vulnerability recently found
5760 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
5761 before application data chunks to avoid the use of known IVs
5762 with data potentially chosen by the attacker.
5765 *) Fix length checks in ssl3_get_client_hello().
5768 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
5769 to prevent ssl3_read_internal() from incorrectly assuming that
5770 ssl3_read_bytes() found application data while handshake
5771 processing was enabled when in fact s->s3->in_read_app_data was
5772 merely automatically cleared during the initial handshake.
5773 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
5775 *) Fix object definitions for Private and Enterprise: they were not
5776 recognized in their shortname (=lowercase) representation. Extend
5777 obj_dat.pl to issue an error when using undefined keywords instead
5778 of silently ignoring the problem (Svenning Sorensen
5779 <sss@sss.dnsalias.net>).
5782 *) Fix DH_generate_parameters() so that it works for 'non-standard'
5783 generators, i.e. generators other than 2 and 5. (Previously, the
5784 code did not properly initialise the 'add' and 'rem' values to
5785 BN_generate_prime().)
5787 In the new general case, we do not insist that 'generator' is
5788 actually a primitive root: This requirement is rather pointless;
5789 a generator of the order-q subgroup is just as good, if not
5793 *) Map new X509 verification errors to alerts. Discovered and submitted by
5794 Tom Wu <tom@arcot.com>.
5797 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
5798 returning non-zero before the data has been completely received
5799 when using non-blocking I/O.
5800 [Bodo Moeller; problem pointed out by John Hughes]
5802 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
5803 [Ben Laurie, Lutz Jaenicke]
5805 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
5806 Yoram Zahavi <YoramZ@gilian.com>).
5809 *) Add information about CygWin 1.3 and on, and preserve proper
5810 configuration for the versions before that.
5811 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
5813 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
5814 check whether we deal with a copy of a session and do not delete from
5815 the cache in this case. Problem reported by "Izhar Shoshani Levi"
5816 <izhar@checkpoint.com>.
5819 *) Do not store session data into the internal session cache, if it
5820 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
5821 flag is set). Proposed by Aslam <aslam@funk.com>.
5824 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
5828 *) [In 0.9.6d-engine release:]
5829 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
5830 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
5832 *) Add the configuration target linux-s390x.
5833 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
5835 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
5836 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
5837 variable as an indication that a ClientHello message has been
5838 received. As the flag value will be lost between multiple
5839 invocations of ssl3_accept when using non-blocking I/O, the
5840 function may not be aware that a handshake has actually taken
5841 place, thus preventing a new session from being added to the
5844 To avoid this problem, we now set s->new_session to 2 instead of
5845 using a local variable.
5846 [Lutz Jaenicke, Bodo Moeller]
5848 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
5849 if the SSL_R_LENGTH_MISMATCH error is detected.
5850 [Geoff Thorpe, Bodo Moeller]
5852 *) New 'shared_ldflag' column in Configure platform table.
5855 *) Fix EVP_CIPHER_mode macro.
5856 ["Dan S. Camper" <dan@bti.net>]
5858 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
5859 type, we must throw them away by setting rr->length to 0.
5860 [D P Chang <dpc@qualys.com>]
5862 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
5864 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
5865 <Dominikus.Scherkl@biodata.com>. (The previous implementation
5866 worked incorrectly for those cases where range = 10..._2 and
5867 3*range is two bits longer than range.)
5870 *) Only add signing time to PKCS7 structures if it is not already
5874 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
5875 OBJ_ld_ce should be OBJ_id_ce.
5876 Also some ip-pda OIDs in crypto/objects/objects.txt were
5877 incorrect (cf. RFC 3039).
5878 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
5880 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
5881 returns early because it has nothing to do.
5882 [Andy Schneider <andy.schneider@bjss.co.uk>]
5884 *) [In 0.9.6c-engine release:]
5885 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
5886 [Andy Schneider <andy.schneider@bjss.co.uk>]
5888 *) [In 0.9.6c-engine release:]
5889 Add support for Cryptographic Appliance's keyserver technology.
5890 (Use engine 'keyclient')
5891 [Cryptographic Appliances and Geoff Thorpe]
5893 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
5894 is called via tools/c89.sh because arguments have to be
5895 rearranged (all '-L' options must appear before the first object
5897 [Richard Shapiro <rshapiro@abinitio.com>]
5899 *) [In 0.9.6c-engine release:]
5900 Add support for Broadcom crypto accelerator cards, backported
5902 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
5904 *) [In 0.9.6c-engine release:]
5905 Add support for SureWare crypto accelerator cards from
5906 Baltimore Technologies. (Use engine 'sureware')
5907 [Baltimore Technologies and Mark Cox]
5909 *) [In 0.9.6c-engine release:]
5910 Add support for crypto accelerator cards from Accelerated
5911 Encryption Processing, www.aep.ie. (Use engine 'aep')
5912 [AEP Inc. and Mark Cox]
5914 *) Add a configuration entry for gcc on UnixWare.
5915 [Gary Benson <gbenson@redhat.com>]
5917 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
5918 messages are stored in a single piece (fixed-length part and
5919 variable-length part combined) and fix various bugs found on the way.
5922 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
5923 instead. BIO_gethostbyname() does not know what timeouts are
5924 appropriate, so entries would stay in cache even when they have
5926 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
5928 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
5929 faced with a pathologically small ClientHello fragment that does
5930 not contain client_version: Instead of aborting with an error,
5931 simply choose the highest available protocol version (i.e.,
5932 TLS 1.0 unless it is disabled). In practice, ClientHello
5933 messages are never sent like this, but this change gives us
5934 strictly correct behaviour at least for TLS.
5937 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
5938 never resets s->method to s->ctx->method when called from within
5939 one of the SSL handshake functions.
5940 [Bodo Moeller; problem pointed out by Niko Baric]
5942 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
5943 (sent using the client's version number) if client_version is
5944 smaller than the protocol version in use. Also change
5945 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
5946 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
5947 the client will at least see that alert.
5950 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
5954 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
5955 client receives HelloRequest while in a handshake.
5956 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
5958 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
5959 should end in 'break', not 'goto end' which circuments various
5960 cleanups done in state SSL_ST_OK. But session related stuff
5961 must be disabled for SSL_ST_OK in the case that we just sent a
5964 Also avoid some overhead by not calling ssl_init_wbio_buffer()
5965 before just sending a HelloRequest.
5966 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
5968 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
5969 reveal whether illegal block cipher padding was found or a MAC
5970 verification error occured. (Neither SSLerr() codes nor alerts
5971 are directly visible to potential attackers, but the information
5972 may leak via logfiles.)
5974 Similar changes are not required for the SSL 2.0 implementation
5975 because the number of padding bytes is sent in clear for SSL 2.0,
5976 and the extra bytes are just ignored. However ssl/s2_pkt.c
5977 failed to verify that the purported number of padding bytes is in
5981 *) Add OpenUNIX-8 support including shared libraries
5982 (Boyd Lynn Gerber <gerberb@zenez.com>).
5985 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
5986 'wristwatch attack' using huge encoding parameters (cf.
5987 James H. Manger's CRYPTO 2001 paper). Note that the
5988 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
5989 encoding parameters and hence was not vulnerable.
5992 *) BN_sqr() bug fix.
5993 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
5995 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
5996 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
5997 followed by modular reduction.
5998 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
6000 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
6001 equivalent based on BN_pseudo_rand() instead of BN_rand().
6004 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
6005 This function was broken, as the check for a new client hello message
6006 to handle SGC did not allow these large messages.
6007 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
6010 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
6013 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
6014 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
6017 *) Rework the configuration and shared library support for Tru64 Unix.
6018 The configuration part makes use of modern compiler features and
6019 still retains old compiler behavior for those that run older versions
6020 of the OS. The shared library support part includes a variant that
6021 uses the RPATH feature, and is available through the special
6022 configuration target "alpha-cc-rpath", which will never be selected
6024 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
6026 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
6027 with the same message size as in ssl3_get_certificate_request().
6028 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
6029 messages might inadvertently be reject as too long.
6030 [Petr Lampa <lampa@fee.vutbr.cz>]
6032 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
6035 *) Modified SSL library such that the verify_callback that has been set
6036 specificly for an SSL object with SSL_set_verify() is actually being
6037 used. Before the change, a verify_callback set with this function was
6038 ignored and the verify_callback() set in the SSL_CTX at the time of
6039 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
6040 to allow the necessary settings.
6043 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
6044 explicitly to NULL, as at least on Solaris 8 this seems not always to be
6045 done automatically (in contradiction to the requirements of the C
6046 standard). This made problems when used from OpenSSH.
6049 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
6050 dh->length and always used
6052 BN_rand_range(priv_key, dh->p).
6054 BN_rand_range() is not necessary for Diffie-Hellman, and this
6055 specific range makes Diffie-Hellman unnecessarily inefficient if
6056 dh->length (recommended exponent length) is much smaller than the
6057 length of dh->p. We could use BN_rand_range() if the order of
6058 the subgroup was stored in the DH structure, but we only have
6063 BN_rand(priv_key, l, ...)
6065 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
6071 RSA_eay_public_encrypt
6072 RSA_eay_private_decrypt
6073 RSA_eay_private_encrypt (signing)
6074 RSA_eay_public_decrypt (signature verification)
6076 (default implementations for RSA_public_encrypt,
6077 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
6078 always reject numbers >= n.
6081 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
6082 to synchronize access to 'locking_thread'. This is necessary on
6083 systems where access to 'locking_thread' (an 'unsigned long'
6084 variable) is not atomic.
6087 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
6088 *before* setting the 'crypto_lock_rand' flag. The previous code had
6089 a race condition if 0 is a valid thread ID.
6090 [Travis Vitek <vitek@roguewave.com>]
6092 *) Add support for shared libraries under Irix.
6093 [Albert Chin-A-Young <china@thewrittenword.com>]
6095 *) Add configuration option to build on Linux on both big-endian and
6097 [Ralf Baechle <ralf@uni-koblenz.de>]
6099 *) Add the possibility to create shared libraries on HP-UX.
6102 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
6104 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
6105 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
6106 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
6107 PRNG state recovery was possible based on the output of
6108 one PRNG request appropriately sized to gain knowledge on
6109 'md' followed by enough consecutive 1-byte PRNG requests
6110 to traverse all of 'state'.
6112 1. When updating 'md_local' (the current thread's copy of 'md')
6113 during PRNG output generation, hash all of the previous
6114 'md_local' value, not just the half used for PRNG output.
6116 2. Make the number of bytes from 'state' included into the hash
6117 independent from the number of PRNG bytes requested.
6119 The first measure alone would be sufficient to avoid
6120 Markku-Juhani's attack. (Actually it had never occurred
6121 to me that the half of 'md_local' used for chaining was the
6122 half from which PRNG output bytes were taken -- I had always
6123 assumed that the secret half would be used.) The second
6124 measure makes sure that additional data from 'state' is never
6125 mixed into 'md_local' in small portions; this heuristically
6126 further strengthens the PRNG.
6129 *) Fix crypto/bn/asm/mips3.s.
6132 *) When only the key is given to "enc", the IV is undefined. Print out
6133 an error message in this case.
6136 *) Handle special case when X509_NAME is empty in X509 printing routines.
6139 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
6140 positive and less than q.
6143 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
6144 used: it isn't thread safe and the add_lock_callback should handle
6146 [Paul Rose <Paul.Rose@bridge.com>]
6148 *) Verify that incoming data obeys the block size in
6149 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
6153 [Ulf Möller, Bodo Möller]
6155 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
6156 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
6157 when fixing the server behaviour for backwards-compatible 'client
6158 hello' messages. (Note that the attack is impractical against
6159 SSL 3.0 and TLS 1.0 anyway because length and version checking
6160 means that the probability of guessing a valid ciphertext is
6161 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
6164 Before 0.9.5, the countermeasure (hide the error by generating a
6165 random 'decryption result') did not work properly because
6166 ERR_clear_error() was missing, meaning that SSL_get_error() would
6167 detect the supposedly ignored error.
6169 Both problems are now fixed.
6172 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
6173 (previously it was 1024).
6176 *) Fix for compatibility mode trust settings: ignore trust settings
6177 unless some valid trust or reject settings are present.
6180 *) Fix for blowfish EVP: its a variable length cipher.
6183 *) Fix various bugs related to DSA S/MIME verification. Handle missing
6184 parameters in DSA public key structures and return an error in the
6185 DSA routines if parameters are absent.
6188 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
6189 in the current directory if neither $RANDFILE nor $HOME was set.
6190 RAND_file_name() in 0.9.6a returned NULL in this case. This has
6191 caused some confusion to Windows users who haven't defined $HOME.
6192 Thus RAND_file_name() is changed again: e_os.h can define a
6193 DEFAULT_HOME, which will be used if $HOME is not set.
6194 For Windows, we use "C:"; on other platforms, we still require
6195 environment variables.
6197 *) Move 'if (!initialized) RAND_poll()' into regions protected by
6198 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
6199 having multiple threads call RAND_poll() concurrently.
6202 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
6203 combination of a flag and a thread ID variable.
6204 Otherwise while one thread is in ssleay_rand_bytes (which sets the
6205 flag), *other* threads can enter ssleay_add_bytes without obeying
6206 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
6207 that they do not hold after the first thread unsets add_do_not_lock).
6210 *) Change bctest again: '-x' expressions are not available in all
6214 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
6216 *) Fix a couple of memory leaks in PKCS7_dataDecode()
6217 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
6219 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
6220 the default extension for executables, if any. Also, make the perl
6221 scripts that use symlink() to test if it really exists and use "cp"
6222 if it doesn't. All this made OpenSSL compilable and installable in
6226 *) Fix for asn1_GetSequence() for indefinite length constructed data.
6227 If SEQUENCE is length is indefinite just set c->slen to the total
6228 amount of data available.
6229 [Steve Henson, reported by shige@FreeBSD.org]
6230 [This change does not apply to 0.9.7.]
6232 *) Change bctest to avoid here-documents inside command substitution
6233 (workaround for FreeBSD /bin/sh bug).
6234 For compatibility with Ultrix, avoid shell functions (introduced
6235 in the bctest version that searches along $PATH).
6238 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
6239 with des_encrypt() defined on some operating systems, like Solaris
6243 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
6244 On the Importance of Eliminating Errors in Cryptographic
6245 Computations, J. Cryptology 14 (2001) 2, 101-119,
6246 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
6249 *) MIPS assembler BIGNUM division bug fix.
6252 *) Disabled incorrect Alpha assembler code.
6255 *) Fix PKCS#7 decode routines so they correctly update the length
6256 after reading an EOC for the EXPLICIT tag.
6258 [This change does not apply to 0.9.7.]
6260 *) Fix bug in PKCS#12 key generation routines. This was triggered
6261 if a 3DES key was generated with a 0 initial byte. Include
6262 PKCS12_BROKEN_KEYGEN compilation option to retain the old
6263 (but broken) behaviour.
6266 *) Enhance bctest to search for a working bc along $PATH and print
6268 [Tim Rice <tim@multitalents.net> via Richard Levitte]
6270 *) Fix memory leaks in err.c: free err_data string if necessary;
6271 don't write to the wrong index in ERR_set_error_data.
6274 *) Implement ssl23_peek (analogous to ssl23_read), which previously
6278 *) Replace rdtsc with _emit statements for VC++ version 5.
6279 [Jeremy Cooper <jeremy@baymoo.org>]
6281 *) Make it possible to reuse SSLv2 sessions.
6284 *) In copy_email() check for >= 0 as a return value for
6285 X509_NAME_get_index_by_NID() since 0 is a valid index.
6286 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
6288 *) Avoid coredump with unsupported or invalid public keys by checking if
6289 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
6290 PKCS7_verify() fails with non detached data.
6293 *) Don't use getenv in library functions when run as setuid/setgid.
6294 New function OPENSSL_issetugid().
6297 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
6298 due to incorrect handling of multi-threading:
6300 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
6302 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
6304 3. Count how many times MemCheck_off() has been called so that
6305 nested use can be treated correctly. This also avoids
6306 inband-signalling in the previous code (which relied on the
6307 assumption that thread ID 0 is impossible).
6310 *) Add "-rand" option also to s_client and s_server.
6313 *) Fix CPU detection on Irix 6.x.
6314 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
6315 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6317 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
6320 [This change does not apply to 0.9.7.]
6322 *) Use the cached encoding of an X509_NAME structure rather than
6323 copying it. This is apparently the reason for the libsafe "errors"
6324 but the code is actually correct.
6327 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
6328 Bleichenbacher's DSA attack.
6329 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
6330 to be set and top=0 forces the highest bit to be set; top=-1 is new
6331 and leaves the highest bit random.
6332 [Ulf Moeller, Bodo Moeller]
6334 *) In the NCONF_...-based implementations for CONF_... queries
6335 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
6336 a temporary CONF structure with the data component set to NULL
6337 (which gives segmentation faults in lh_retrieve).
6338 Instead, use NULL for the CONF pointer in CONF_get_string and
6339 CONF_get_number (which may use environment variables) and directly
6340 return NULL from CONF_get_section.
6343 *) Fix potential buffer overrun for EBCDIC.
6346 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
6347 keyUsage if basicConstraints absent for a CA.
6350 *) Make SMIME_write_PKCS7() write mail header values with a format that
6351 is more generally accepted (no spaces before the semicolon), since
6352 some programs can't parse those values properly otherwise. Also make
6353 sure BIO's that break lines after each write do not create invalid
6357 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
6358 macros previously used would not encode an empty SEQUENCE OF
6359 and break the signature.
6361 [This change does not apply to 0.9.7.]
6363 *) Zero the premaster secret after deriving the master secret in
6367 *) Add some EVP_add_digest_alias registrations (as found in
6368 OpenSSL_add_all_digests()) to SSL_library_init()
6369 aka OpenSSL_add_ssl_algorithms(). This provides improved
6370 compatibility with peers using X.509 certificates
6371 with unconventional AlgorithmIdentifier OIDs.
6374 *) Fix for Irix with NO_ASM.
6375 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
6377 *) ./config script fixes.
6378 [Ulf Moeller, Richard Levitte]
6380 *) Fix 'openssl passwd -1'.
6383 *) Change PKCS12_key_gen_asc() so it can cope with non null
6384 terminated strings whose length is passed in the passlen
6385 parameter, for example from PEM callbacks. This was done
6386 by adding an extra length parameter to asc2uni().
6387 [Steve Henson, reported by <oddissey@samsung.co.kr>]
6389 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
6390 call failed, free the DSA structure.
6393 *) Fix to uni2asc() to cope with zero length Unicode strings.
6394 These are present in some PKCS#12 files.
6397 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
6398 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
6399 when writing a 32767 byte record.
6400 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
6402 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
6403 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
6405 (RSA objects have a reference count access to which is protected
6406 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
6407 so they are meant to be shared between threads.)
6408 [Bodo Moeller, Geoff Thorpe; original patch submitted by
6409 "Reddie, Steven" <Steven.Reddie@ca.com>]
6411 *) Fix a deadlock in CRYPTO_mem_leaks().
6414 *) Use better test patterns in bntest.
6417 *) rand_win.c fix for Borland C.
6420 *) BN_rshift bugfix for n == 0.
6423 *) Add a 'bctest' script that checks for some known 'bc' bugs
6424 so that 'make test' does not abort just because 'bc' is broken.
6427 *) Store verify_result within SSL_SESSION also for client side to
6428 avoid potential security hole. (Re-used sessions on the client side
6429 always resulted in verify_result==X509_V_OK, not using the original
6430 result of the server certificate verification.)
6433 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
6434 SSL3_RT_APPLICATION_DATA, return 0.
6435 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
6439 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
6440 releases, have been re-implemented by renaming the previous
6441 implementations of ssl2_read and ssl3_read to ssl2_read_internal
6442 and ssl3_read_internal, respectively, and adding 'peek' parameters
6443 to them. The new ssl[23]_{read,peek} functions are calls to
6444 ssl[23]_read_internal with the 'peek' flag set appropriately.
6445 A 'peek' parameter has also been added to ssl3_read_bytes, which
6446 does the actual work for ssl3_read_internal.
6449 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
6450 the method-specific "init()" handler. Also clean up ex_data after
6451 calling the method-specific "finish()" handler. Previously, this was
6452 happening the other way round.
6455 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
6456 The previous value, 12, was not always sufficient for BN_mod_exp().
6459 *) Make sure that shared libraries get the internal name engine with
6460 the full version number and not just 0. This should mark the
6461 shared libraries as not backward compatible. Of course, this should
6462 be changed again when we can guarantee backward binary compatibility.
6465 *) Fix typo in get_cert_by_subject() in by_dir.c
6466 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
6468 *) Rework the system to generate shared libraries:
6470 - Make note of the expected extension for the shared libraries and
6471 if there is a need for symbolic links from for example libcrypto.so.0
6472 to libcrypto.so.0.9.7. There is extended info in Configure for
6475 - Make as few rebuilds of the shared libraries as possible.
6477 - Still avoid linking the OpenSSL programs with the shared libraries.
6479 - When installing, install the shared libraries separately from the
6483 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
6485 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
6486 and not in SSL_clear because the latter is also used by the
6487 accept/connect functions; previously, the settings made by
6488 SSL_set_read_ahead would be lost during the handshake.
6489 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
6491 *) Correct util/mkdef.pl to be selective about disabled algorithms.
6492 Previously, it would create entries for disableed algorithms no
6496 *) Added several new manual pages for SSL_* function.
6499 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
6501 *) In ssl23_get_client_hello, generate an error message when faced
6502 with an initial SSL 3.0/TLS record that is too small to contain the
6503 first two bytes of the ClientHello message, i.e. client_version.
6504 (Note that this is a pathologic case that probably has never happened
6505 in real life.) The previous approach was to use the version number
6506 from the record header as a substitute; but our protocol choice
6507 should not depend on that one because it is not authenticated
6508 by the Finished messages.
6511 *) More robust randomness gathering functions for Windows.
6512 [Jeffrey Altman <jaltman@columbia.edu>]
6514 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
6515 not set then we don't setup the error code for issuer check errors
6516 to avoid possibly overwriting other errors which the callback does
6517 handle. If an application does set the flag then we assume it knows
6518 what it is doing and can handle the new informational codes
6522 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
6523 a general "ANY" type, as such it should be able to decode anything
6524 including tagged types. However it didn't check the class so it would
6525 wrongly interpret tagged types in the same way as their universal
6526 counterpart and unknown types were just rejected. Changed so that the
6527 tagged and unknown types are handled in the same way as a SEQUENCE:
6528 that is the encoding is stored intact. There is also a new type
6529 "V_ASN1_OTHER" which is used when the class is not universal, in this
6530 case we have no idea what the actual type is so we just lump them all
6534 *) On VMS, stdout may very well lead to a file that is written to
6535 in a record-oriented fashion. That means that every write() will
6536 write a separate record, which will be read separately by the
6537 programs trying to read from it. This can be very confusing.
6539 The solution is to put a BIO filter in the way that will buffer
6540 text until a linefeed is reached, and then write everything a
6541 line at a time, so every record written will be an actual line,
6542 not chunks of lines and not (usually doesn't happen, but I've
6543 seen it once) several lines in one record. BIO_f_linebuffer() is
6546 Currently, it's a VMS-only method, because that's where it has
6547 been tested well enough.
6550 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
6551 it can return incorrect results.
6552 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
6553 but it was in 0.9.6-beta[12].)
6556 *) Disable the check for content being present when verifying detached
6557 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
6558 include zero length content when signing messages.
6561 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
6562 BIO_ctrl (for BIO pairs).
6565 *) Add DSO method for VMS.
6568 *) Bug fix: Montgomery multiplication could produce results with the
6572 *) Add RPM specification openssl.spec and modify it to build three
6573 packages. The default package contains applications, application
6574 documentation and run-time libraries. The devel package contains
6575 include files, static libraries and function documentation. The
6576 doc package contains the contents of the doc directory. The original
6577 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
6580 *) Add a large number of documentation files for many SSL routines.
6581 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
6583 *) Add a configuration entry for Sony News 4.
6584 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
6586 *) Don't set the two most significant bits to one when generating a
6587 random number < q in the DSA library.
6590 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
6591 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
6592 the underlying transport is blocking) if a handshake took place.
6593 (The default behaviour is needed by applications such as s_client
6594 and s_server that use select() to determine when to use SSL_read;
6595 but for applications that know in advance when to expect data, it
6596 just makes things more complicated.)
6599 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
6603 *) Add a few more EBCDIC conditionals that make `req' and `x509'
6604 work better on such systems.
6605 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6607 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
6608 Update PKCS12_parse() so it copies the friendlyName and the
6609 keyid to the certificates aux info.
6612 *) Fix bug in PKCS7_verify() which caused an infinite loop
6613 if there was more than one signature.
6614 [Sven Uszpelkat <su@celocom.de>]
6616 *) Major change in util/mkdef.pl to include extra information
6617 about each symbol, as well as presentig variables as well
6618 as functions. This change means that there's n more need
6619 to rebuild the .num files when some algorithms are excluded.
6622 *) Allow the verify time to be set by an application,
6623 rather than always using the current time.
6626 *) Phase 2 verify code reorganisation. The certificate
6627 verify code now looks up an issuer certificate by a
6628 number of criteria: subject name, authority key id
6629 and key usage. It also verifies self signed certificates
6630 by the same criteria. The main comparison function is
6631 X509_check_issued() which performs these checks.
6633 Lot of changes were necessary in order to support this
6634 without completely rewriting the lookup code.
6636 Authority and subject key identifier are now cached.
6638 The LHASH 'certs' is X509_STORE has now been replaced
6639 by a STACK_OF(X509_OBJECT). This is mainly because an
6640 LHASH can't store or retrieve multiple objects with
6641 the same hash value.
6643 As a result various functions (which were all internal
6644 use only) have changed to handle the new X509_STORE
6645 structure. This will break anything that messed round
6646 with X509_STORE internally.
6648 The functions X509_STORE_add_cert() now checks for an
6649 exact match, rather than just subject name.
6651 The X509_STORE API doesn't directly support the retrieval
6652 of multiple certificates matching a given criteria, however
6653 this can be worked round by performing a lookup first
6654 (which will fill the cache with candidate certificates)
6655 and then examining the cache for matches. This is probably
6656 the best we can do without throwing out X509_LOOKUP
6657 entirely (maybe later...).
6659 The X509_VERIFY_CTX structure has been enhanced considerably.
6661 All certificate lookup operations now go via a get_issuer()
6662 callback. Although this currently uses an X509_STORE it
6663 can be replaced by custom lookups. This is a simple way
6664 to bypass the X509_STORE hackery necessary to make this
6665 work and makes it possible to use more efficient techniques
6666 in future. A very simple version which uses a simple
6667 STACK for its trusted certificate store is also provided
6668 using X509_STORE_CTX_trusted_stack().
6670 The verify_cb() and verify() callbacks now have equivalents
6671 in the X509_STORE_CTX structure.
6673 X509_STORE_CTX also has a 'flags' field which can be used
6674 to customise the verify behaviour.
6677 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
6678 excludes S/MIME capabilities.
6681 *) When a certificate request is read in keep a copy of the
6682 original encoding of the signed data and use it when outputing
6683 again. Signatures then use the original encoding rather than
6684 a decoded, encoded version which may cause problems if the
6685 request is improperly encoded.
6688 *) For consistency with other BIO_puts implementations, call
6689 buffer_write(b, ...) directly in buffer_puts instead of calling
6692 In BIO_puts, increment b->num_write as in BIO_write.
6693 [Peter.Sylvester@EdelWeb.fr]
6695 *) Fix BN_mul_word for the case where the word is 0. (We have to use
6696 BN_zero, we may not return a BIGNUM with an array consisting of
6700 *) Avoid calling abort() from within the library when problems are
6701 detected, except if preprocessor symbols have been defined
6702 (such as REF_CHECK, BN_DEBUG etc.).
6705 *) New openssl application 'rsautl'. This utility can be
6706 used for low level RSA operations. DER public key
6707 BIO/fp routines also added.
6710 *) New Configure entry and patches for compiling on QNX 4.
6711 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
6713 *) A demo state-machine implementation was sponsored by
6714 Nuron (http://www.nuron.com/) and is now available in
6715 demos/state_machine.
6718 *) New options added to the 'dgst' utility for signature
6719 generation and verification.
6722 *) Unrecognized PKCS#7 content types are now handled via a
6723 catch all ASN1_TYPE structure. This allows unsupported
6724 types to be stored as a "blob" and an application can
6725 encode and decode it manually.
6728 *) Fix various signed/unsigned issues to make a_strex.c
6730 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
6732 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
6733 length if passed a buffer. ASN1_INTEGER_to_BN failed
6734 if passed a NULL BN and its argument was negative.
6735 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
6737 *) Modification to PKCS#7 encoding routines to output definite
6738 length encoding. Since currently the whole structures are in
6739 memory there's not real point in using indefinite length
6740 constructed encoding. However if OpenSSL is compiled with
6741 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
6744 *) Added BIO_vprintf() and BIO_vsnprintf().
6747 *) Added more prefixes to parse for in the the strings written
6748 through a logging bio, to cover all the levels that are available
6749 through syslog. The prefixes are now:
6751 PANIC, EMERG, EMR => LOG_EMERG
6752 ALERT, ALR => LOG_ALERT
6753 CRIT, CRI => LOG_CRIT
6754 ERROR, ERR => LOG_ERR
6755 WARNING, WARN, WAR => LOG_WARNING
6756 NOTICE, NOTE, NOT => LOG_NOTICE
6757 INFO, INF => LOG_INFO
6758 DEBUG, DBG => LOG_DEBUG
6760 and as before, if none of those prefixes are present at the
6761 beginning of the string, LOG_ERR is chosen.
6763 On Win32, the LOG_* levels are mapped according to this:
6765 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
6766 LOG_WARNING => EVENTLOG_WARNING_TYPE
6767 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
6771 *) Made it possible to reconfigure with just the configuration
6772 argument "reconf" or "reconfigure". The command line arguments
6773 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
6774 and are retrieved from there when reconfiguring.
6778 [Assar Westerlund <assar@sics.se>, Richard Levitte]
6780 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
6783 *) The obj_dat.pl script was messing up the sorting of object
6784 names. The reason was that it compared the quoted version
6785 of strings as a result "OCSP" > "OCSP Signing" because
6786 " > SPACE. Changed script to store unquoted versions of
6787 names and add quotes on output. It was also omitting some
6788 names from the lookup table if they were given a default
6789 value (that is if SN is missing it is given the same
6790 value as LN and vice versa), these are now added on the
6791 grounds that if an object has a name we should be able to
6792 look it up. Finally added warning output when duplicate
6793 short or long names are found.
6796 *) Changes needed for Tandem NSK.
6797 [Scott Uroff <scott@xypro.com>]
6799 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
6800 RSA_padding_check_SSLv23(), special padding was never detected
6801 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
6802 version rollback attacks was not effective.
6804 In s23_clnt.c, don't use special rollback-attack detection padding
6805 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
6806 client; similarly, in s23_srvr.c, don't do the rollback check if
6807 SSL 2.0 is the only protocol enabled in the server.
6810 *) Make it possible to get hexdumps of unprintable data with 'openssl
6811 asn1parse'. By implication, the functions ASN1_parse_dump() and
6812 BIO_dump_indent() are added.
6815 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
6816 these print out strings and name structures based on various
6817 flags including RFC2253 support and proper handling of
6818 multibyte characters. Added options to the 'x509' utility
6819 to allow the various flags to be set.
6822 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
6823 Also change the functions X509_cmp_current_time() and
6824 X509_gmtime_adj() work with an ASN1_TIME structure,
6825 this will enable certificates using GeneralizedTime in validity
6826 dates to be checked.
6829 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
6830 negative public key encodings) on by default,
6831 NO_NEG_PUBKEY_BUG can be set to disable it.
6834 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
6835 content octets. An i2c_ASN1_OBJECT is unnecessary because
6836 the encoding can be trivially obtained from the structure.
6839 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
6840 not read locks (CRYPTO_r_[un]lock).
6843 *) A first attempt at creating official support for shared
6844 libraries through configuration. I've kept it so the
6845 default is static libraries only, and the OpenSSL programs
6846 are always statically linked for now, but there are
6847 preparations for dynamic linking in place.
6848 This has been tested on Linux and Tru64.
6851 *) Randomness polling function for Win9x, as described in:
6852 Peter Gutmann, Software Generation of Practically Strong
6856 *) Fix so PRNG is seeded in req if using an already existing
6860 *) New options to smime application. -inform and -outform
6861 allow alternative formats for the S/MIME message including
6862 PEM and DER. The -content option allows the content to be
6863 specified separately. This should allow things like Netscape
6864 form signing output easier to verify.
6867 *) Fix the ASN1 encoding of tags using the 'long form'.
6870 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
6871 STRING types. These convert content octets to and from the
6872 underlying type. The actual tag and length octets are
6873 already assumed to have been read in and checked. These
6874 are needed because all other string types have virtually
6875 identical handling apart from the tag. By having versions
6876 of the ASN1 functions that just operate on content octets
6877 IMPLICIT tagging can be handled properly. It also allows
6878 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
6879 and ASN1_INTEGER are identical apart from the tag.
6882 *) Change the handling of OID objects as follows:
6884 - New object identifiers are inserted in objects.txt, following
6885 the syntax given in objects.README.
6886 - objects.pl is used to process obj_mac.num and create a new
6888 - obj_dat.pl is used to create a new obj_dat.h, using the data in
6891 This is currently kind of a hack, and the perl code in objects.pl
6892 isn't very elegant, but it works as I intended. The simplest way
6893 to check that it worked correctly is to look in obj_dat.h and
6894 check the array nid_objs and make sure the objects haven't moved
6895 around (this is important!). Additions are OK, as well as
6896 consistent name changes.
6899 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
6902 *) Addition of the command line parameter '-rand file' to 'openssl req'.
6903 The given file adds to whatever has already been seeded into the
6904 random pool through the RANDFILE configuration file option or
6905 environment variable, or the default random state file.
6908 *) mkstack.pl now sorts each macro group into lexical order.
6909 Previously the output order depended on the order the files
6910 appeared in the directory, resulting in needless rewriting
6914 *) Patches to make OpenSSL compile under Win32 again. Mostly
6915 work arounds for the VC++ problem that it treats func() as
6916 func(void). Also stripped out the parts of mkdef.pl that
6917 added extra typesafe functions: these no longer exist.
6920 *) Reorganisation of the stack code. The macros are now all
6921 collected in safestack.h . Each macro is defined in terms of
6922 a "stack macro" of the form SKM_<name>(type, a, b). The
6923 DEBUG_SAFESTACK is now handled in terms of function casts,
6924 this has the advantage of retaining type safety without the
6925 use of additional functions. If DEBUG_SAFESTACK is not defined
6926 then the non typesafe macros are used instead. Also modified the
6927 mkstack.pl script to handle the new form. Needs testing to see
6928 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
6929 the default if no major problems. Similar behaviour for ASN1_SET_OF
6930 and PKCS12_STACK_OF.
6933 *) When some versions of IIS use the 'NET' form of private key the
6934 key derivation algorithm is different. Normally MD5(password) is
6935 used as a 128 bit RC4 key. In the modified case
6936 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
6937 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
6938 as the old Netscape_RSA functions except they have an additional
6939 'sgckey' parameter which uses the modified algorithm. Also added
6940 an -sgckey command line option to the rsa utility. Thanks to
6941 Adrian Peck <bertie@ncipher.com> for posting details of the modified
6942 algorithm to openssl-dev.
6945 *) The evp_local.h macros were using 'c.##kname' which resulted in
6946 invalid expansion on some systems (SCO 5.0.5 for example).
6947 Corrected to 'c.kname'.
6948 [Phillip Porch <root@theporch.com>]
6950 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
6951 a STACK of email addresses from a certificate or request, these look
6952 in the subject name and the subject alternative name extensions and
6953 omit any duplicate addresses.
6956 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
6957 This makes DSA verification about 2 % faster.
6960 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
6961 (meaning that now 2^5 values will be precomputed, which is only 4 KB
6962 plus overhead for 1024 bit moduli).
6963 This makes exponentiations about 0.5 % faster for 1024 bit
6964 exponents (as measured by "openssl speed rsa2048").
6967 *) Rename memory handling macros to avoid conflicts with other
6969 Malloc => OPENSSL_malloc
6970 Malloc_locked => OPENSSL_malloc_locked
6971 Realloc => OPENSSL_realloc
6972 Free => OPENSSL_free
6975 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
6976 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
6979 *) CygWin32 support.
6980 [John Jarvie <jjarvie@newsguy.com>]
6982 *) The type-safe stack code has been rejigged. It is now only compiled
6983 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
6984 by default all type-specific stack functions are "#define"d back to
6985 standard stack functions. This results in more streamlined output
6986 but retains the type-safety checking possibilities of the original
6990 *) The STACK code has been cleaned up, and certain type declarations
6991 that didn't make a lot of sense have been brought in line. This has
6992 also involved a cleanup of sorts in safestack.h to more correctly
6993 map type-safe stack functions onto their plain stack counterparts.
6994 This work has also resulted in a variety of "const"ifications of
6995 lots of the code, especially "_cmp" operations which should normally
6996 be prototyped with "const" parameters anyway.
6999 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
7000 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
7001 (The PRNG state consists of two parts, the large pool 'state' and 'md',
7002 where all of 'md' is used each time the PRNG is used, but 'state'
7003 is used only indexed by a cyclic counter. As entropy may not be
7004 well distributed from the beginning, 'md' is important as a
7005 chaining variable. However, the output function chains only half
7006 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
7007 all of 'md', and seeding with STATE_SIZE dummy bytes will result
7008 in all of 'state' being rewritten, with the new values depending
7009 on virtually all of 'md'. This overcomes the 80 bit limitation.)
7012 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
7013 the handshake is continued after ssl_verify_cert_chain();
7014 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
7015 can lead to 'unexplainable' connection aborts later.
7016 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
7018 *) Major EVP API cipher revision.
7019 Add hooks for extra EVP features. This allows various cipher
7020 parameters to be set in the EVP interface. Support added for variable
7021 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
7022 setting of RC2 and RC5 parameters.
7024 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
7027 Remove lots of duplicated code from the EVP library. For example *every*
7028 cipher init() function handles the 'iv' in the same way according to the
7029 cipher mode. They also all do nothing if the 'key' parameter is NULL and
7030 for CFB and OFB modes they zero ctx->num.
7032 New functionality allows removal of S/MIME code RC2 hack.
7034 Most of the routines have the same form and so can be declared in terms
7037 By shifting this to the top level EVP_CipherInit() it can be removed from
7038 all individual ciphers. If the cipher wants to handle IVs or keys
7039 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
7042 Change lots of functions like EVP_EncryptUpdate() to now return a
7043 value: although software versions of the algorithms cannot fail
7044 any installed hardware versions can.
7047 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
7048 this option is set, tolerate broken clients that send the negotiated
7049 protocol version number instead of the requested protocol version
7053 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
7054 i.e. non-zero for export ciphersuites, zero otherwise.
7055 Previous versions had this flag inverted, inconsistent with
7056 rsa_tmp_cb (..._TMP_RSA_CB).
7057 [Bodo Moeller; problem reported by Amit Chopra]
7059 *) Add missing DSA library text string. Work around for some IIS
7060 key files with invalid SEQUENCE encoding.
7063 *) Add a document (doc/standards.txt) that list all kinds of standards
7064 and so on that are implemented in OpenSSL.
7067 *) Enhance c_rehash script. Old version would mishandle certificates
7068 with the same subject name hash and wouldn't handle CRLs at all.
7069 Added -fingerprint option to crl utility, to support new c_rehash
7073 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
7076 *) Fix for SSL server purpose checking. Server checking was
7077 rejecting certificates which had extended key usage present
7078 but no ssl client purpose.
7079 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
7081 *) Make PKCS#12 code work with no password. The PKCS#12 spec
7082 is a little unclear about how a blank password is handled.
7083 Since the password in encoded as a BMPString with terminating
7084 double NULL a zero length password would end up as just the
7085 double NULL. However no password at all is different and is
7086 handled differently in the PKCS#12 key generation code. NS
7087 treats a blank password as zero length. MSIE treats it as no
7088 password on export: but it will try both on import. We now do
7089 the same: PKCS12_parse() tries zero length and no password if
7090 the password is set to "" or NULL (NULL is now a valid password:
7091 it wasn't before) as does the pkcs12 application.
7094 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
7095 perror when PEM_read_bio_X509_REQ fails, the error message must
7096 be obtained from the error queue.
7099 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
7100 it in ERR_remove_state if appropriate, and change ERR_get_state
7101 accordingly to avoid race conditions (this is necessary because
7102 thread_hash is no longer constant once set).
7105 *) Bugfix for linux-elf makefile.one.
7108 *) RSA_get_default_method() will now cause a default
7109 RSA_METHOD to be chosen if one doesn't exist already.
7110 Previously this was only set during a call to RSA_new()
7111 or RSA_new_method(NULL) meaning it was possible for
7112 RSA_get_default_method() to return NULL.
7115 *) Added native name translation to the existing DSO code
7116 that will convert (if the flag to do so is set) filenames
7117 that are sufficiently small and have no path information
7118 into a canonical native form. Eg. "blah" converted to
7119 "libblah.so" or "blah.dll" etc.
7122 *) New function ERR_error_string_n(e, buf, len) which is like
7123 ERR_error_string(e, buf), but writes at most 'len' bytes
7124 including the 0 terminator. For ERR_error_string_n, 'buf'
7126 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
7128 *) CONF library reworked to become more general. A new CONF
7129 configuration file reader "class" is implemented as well as a
7130 new functions (NCONF_*, for "New CONF") to handle it. The now
7131 old CONF_* functions are still there, but are reimplemented to
7132 work in terms of the new functions. Also, a set of functions
7133 to handle the internal storage of the configuration data is
7134 provided to make it easier to write new configuration file
7135 reader "classes" (I can definitely see something reading a
7136 configuration file in XML format, for example), called _CONF_*,
7137 or "the configuration storage API"...
7139 The new configuration file reading functions are:
7141 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
7142 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
7144 NCONF_default, NCONF_WIN32
7146 NCONF_dump_fp, NCONF_dump_bio
7148 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
7149 NCONF_new creates a new CONF object. This works in the same way
7150 as other interfaces in OpenSSL, like the BIO interface.
7151 NCONF_dump_* dump the internal storage of the configuration file,
7152 which is useful for debugging. All other functions take the same
7153 arguments as the old CONF_* functions wth the exception of the
7154 first that must be a `CONF *' instead of a `LHASH *'.
7156 To make it easer to use the new classes with the old CONF_* functions,
7157 the function CONF_set_default_method is provided.
7160 *) Add '-tls1' option to 'openssl ciphers', which was already
7161 mentioned in the documentation but had not been implemented.
7162 (This option is not yet really useful because even the additional
7163 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
7166 *) Initial DSO code added into libcrypto for letting OpenSSL (and
7167 OpenSSL-based applications) load shared libraries and bind to
7168 them in a portable way.
7169 [Geoff Thorpe, with contributions from Richard Levitte]
7171 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
7173 *) Make sure _lrotl and _lrotr are only used with MSVC.
7175 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
7176 (the default implementation of RAND_status).
7178 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
7179 to '-clrext' (= clear extensions), as intended and documented.
7180 [Bodo Moeller; inconsistency pointed out by Michael Attili
7183 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
7184 was larger than the MD block size.
7185 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
7187 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
7188 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
7189 using the passed key: if the passed key was a private key the result
7190 of X509_print(), for example, would be to print out all the private key
7194 *) des_quad_cksum() byte order bug fix.
7195 [Ulf Möller, using the problem description in krb4-0.9.7, where
7196 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
7198 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
7200 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
7202 *) For easily testing in shell scripts whether some command
7203 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
7204 returns with exit code 0 iff no command of the given name is available.
7205 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
7206 the output goes to stdout and nothing is printed to stderr.
7207 Additional arguments are always ignored.
7209 Since for each cipher there is a command of the same name,
7210 the 'no-cipher' compilation switches can be tested this way.
7212 ('openssl no-XXX' is not able to detect pseudo-commands such
7213 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
7216 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
7219 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
7220 is set; it will be thrown away anyway because each handshake creates
7222 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
7223 to parameters -- in previous versions (since OpenSSL 0.9.3) the
7224 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
7225 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
7228 *) New s_client option -ign_eof: EOF at stdin is ignored, and
7229 'Q' and 'R' lose their special meanings (quit/renegotiate).
7230 This is part of what -quiet does; unlike -quiet, -ign_eof
7231 does not suppress any output.
7234 *) Add compatibility options to the purpose and trust code. The
7235 purpose X509_PURPOSE_ANY is "any purpose" which automatically
7236 accepts a certificate or CA, this was the previous behaviour,
7237 with all the associated security issues.
7239 X509_TRUST_COMPAT is the old trust behaviour: only and
7240 automatically trust self signed roots in certificate store. A
7241 new trust setting X509_TRUST_DEFAULT is used to specify that
7242 a purpose has no associated trust setting and it should instead
7243 use the value in the default purpose.
7246 *) Fix the PKCS#8 DSA private key code so it decodes keys again
7247 and fix a memory leak.
7250 *) In util/mkerr.pl (which implements 'make errors'), preserve
7251 reason strings from the previous version of the .c file, as
7252 the default to have only downcase letters (and digits) in
7253 automatically generated reasons codes is not always appropriate.
7256 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
7257 using strerror. Previously, ERR_reason_error_string() returned
7258 library names as reason strings for SYSerr; but SYSerr is a special
7259 case where small numbers are errno values, not library numbers.
7262 *) Add '-dsaparam' option to 'openssl dhparam' application. This
7263 converts DSA parameters into DH parameters. (When creating parameters,
7264 DSA_generate_parameters is used.)
7267 *) Include 'length' (recommended exponent length) in C code generated
7268 by 'openssl dhparam -C'.
7271 *) The second argument to set_label in perlasm was already being used
7272 so couldn't be used as a "file scope" flag. Moved to third argument
7276 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
7277 instead of RAND_bytes for encryption IVs and salts.
7280 *) Include RAND_status() into RAND_METHOD instead of implementing
7281 it only for md_rand.c Otherwise replacing the PRNG by calling
7282 RAND_set_rand_method would be impossible.
7285 *) Don't let DSA_generate_key() enter an infinite loop if the random
7286 number generation fails.
7289 *) New 'rand' application for creating pseudo-random output.
7292 *) Added configuration support for Linux/IA64
7293 [Rolf Haberrecker <rolf@suse.de>]
7295 *) Assembler module support for Mingw32.
7298 *) Shared library support for HPUX (in shlib/).
7299 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
7301 *) Shared library support for Solaris gcc.
7302 [Lutz Behnke <behnke@trustcenter.de>]
7304 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
7306 *) PKCS7_encrypt() was adding text MIME headers twice because they
7307 were added manually and by SMIME_crlf_copy().
7310 *) In bntest.c don't call BN_rand with zero bits argument.
7311 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
7313 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
7314 case was implemented. This caused BN_div_recp() to fail occasionally.
7317 *) Add an optional second argument to the set_label() in the perl
7318 assembly language builder. If this argument exists and is set
7319 to 1 it signals that the assembler should use a symbol whose
7320 scope is the entire file, not just the current function. This
7321 is needed with MASM which uses the format label:: for this scope.
7322 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
7324 *) Change the ASN1 types so they are typedefs by default. Before
7325 almost all types were #define'd to ASN1_STRING which was causing
7326 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
7330 *) Change names of new functions to the new get1/get0 naming
7331 convention: After 'get1', the caller owns a reference count
7332 and has to call ..._free; 'get0' returns a pointer to some
7333 data structure without incrementing reference counters.
7334 (Some of the existing 'get' functions increment a reference
7335 counter, some don't.)
7336 Similarly, 'set1' and 'add1' functions increase reference
7337 counters or duplicate objects.
7340 *) Allow for the possibility of temp RSA key generation failure:
7341 the code used to assume it always worked and crashed on failure.
7344 *) Fix potential buffer overrun problem in BIO_printf().
7345 [Ulf Möller, using public domain code by Patrick Powell; problem
7346 pointed out by David Sacerdote <das33@cornell.edu>]
7348 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
7349 RAND_egd() and RAND_status(). In the command line application,
7350 the EGD socket can be specified like a seed file using RANDFILE
7354 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
7355 Some CAs (e.g. Verisign) distribute certificates in this form.
7358 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
7359 list to exclude them. This means that no special compilation option
7360 is needed to use anonymous DH: it just needs to be included in the
7364 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
7365 EVP_MD_type. The old functionality is available in a new macro called
7366 EVP_MD_md(). Change code that uses it and update docs.
7369 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
7370 where the 'void *' argument is replaced by a function pointer argument.
7371 Previously 'void *' was abused to point to functions, which works on
7372 many platforms, but is not correct. As these functions are usually
7373 called by macros defined in OpenSSL header files, most source code
7374 should work without changes.
7377 *) <openssl/opensslconf.h> (which is created by Configure) now contains
7378 sections with information on -D... compiler switches used for
7379 compiling the library so that applications can see them. To enable
7380 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
7381 must be defined. E.g.,
7382 #define OPENSSL_ALGORITHM_DEFINES
7383 #include <openssl/opensslconf.h>
7384 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
7385 [Richard Levitte, Ulf and Bodo Möller]
7387 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
7391 *) Change the 'other' type in certificate aux info to a STACK_OF
7392 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
7393 the required ASN1 format: arbitrary types determined by an OID.
7396 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
7397 argument to 'req'. This is not because the function is newer or
7398 better than others it just uses the work 'NEW' in the certificate
7399 request header lines. Some software needs this.
7402 *) Reorganise password command line arguments: now passwords can be
7403 obtained from various sources. Delete the PEM_cb function and make
7404 it the default behaviour: i.e. if the callback is NULL and the
7405 usrdata argument is not NULL interpret it as a null terminated pass
7406 phrase. If usrdata and the callback are NULL then the pass phrase
7407 is prompted for as usual.
7410 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
7411 the support is automatically enabled. The resulting binaries will
7412 autodetect the card and use it if present.
7413 [Ben Laurie and Compaq Inc.]
7415 *) Work around for Netscape hang bug. This sends certificate request
7416 and server done in one record. Since this is perfectly legal in the
7417 SSL/TLS protocol it isn't a "bug" option and is on by default. See
7418 the bugs/SSLv3 entry for more info.
7421 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
7424 *) Add -rand argument to smime and pkcs12 applications and read/write
7428 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
7431 *) Add command line password options to the remaining applications.
7434 *) Bug fix for BN_div_recp() for numerators with an even number of
7438 *) More tests in bntest.c, and changed test_bn output.
7441 *) ./config recognizes MacOS X now.
7444 *) Bug fix for BN_div() when the first words of num and divsor are
7445 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
7448 *) Add support for various broken PKCS#8 formats, and command line
7449 options to produce them.
7452 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
7453 get temporary BIGNUMs from a BN_CTX.
7456 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
7460 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
7461 include a #define from the old name to the new. The original intent
7462 was that statically linked binaries could for example just call
7463 SSLeay_add_all_ciphers() to just add ciphers to the table and not
7464 link with digests. This never worked becayse SSLeay_add_all_digests()
7465 and SSLeay_add_all_ciphers() were in the same source file so calling
7466 one would link with the other. They are now in separate source files.
7469 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
7472 *) Use a less unusual form of the Miller-Rabin primality test (it used
7473 a binary algorithm for exponentiation integrated into the Miller-Rabin
7474 loop, our standard modexp algorithms are faster).
7477 *) Support for the EBCDIC character set completed.
7478 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
7480 *) Source code cleanups: use const where appropriate, eliminate casts,
7481 use void * instead of char * in lhash.
7484 *) Bugfix: ssl3_send_server_key_exchange was not restartable
7485 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
7486 this the server could overwrite ephemeral keys that the client
7490 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
7491 using 50 iterations of the Rabin-Miller test.
7493 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
7494 iterations of the Rabin-Miller test as required by the appendix
7495 to FIPS PUB 186[-1]) instead of DSA_is_prime.
7496 As BN_is_prime_fasttest includes trial division, DSA parameter
7497 generation becomes much faster.
7499 This implies a change for the callback functions in DSA_is_prime
7500 and DSA_generate_parameters: The callback function is called once
7501 for each positive witness in the Rabin-Miller test, not just
7502 occasionally in the inner loop; and the parameters to the
7503 callback function now provide an iteration count for the outer
7504 loop rather than for the current invocation of the inner loop.
7505 DSA_generate_parameters additionally can call the callback
7506 function with an 'iteration count' of -1, meaning that a
7507 candidate has passed the trial division test (when q is generated
7508 from an application-provided seed, trial division is skipped).
7511 *) New function BN_is_prime_fasttest that optionally does trial
7512 division before starting the Rabin-Miller test and has
7513 an additional BN_CTX * argument (whereas BN_is_prime always
7514 has to allocate at least one BN_CTX).
7515 'callback(1, -1, cb_arg)' is called when a number has passed the
7516 trial division stage.
7519 *) Fix for bug in CRL encoding. The validity dates weren't being handled
7523 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
7526 *) New function BN_pseudo_rand().
7529 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
7530 bignum version of BN_from_montgomery() with the working code from
7531 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
7535 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
7536 made it impossible to use the same SSL_SESSION data structure in
7537 SSL2 clients in multiple threads.
7540 *) The return value of RAND_load_file() no longer counts bytes obtained
7541 by stat(). RAND_load_file(..., -1) is new and uses the complete file
7542 to seed the PRNG (previously an explicit byte count was required).
7543 [Ulf Möller, Bodo Möller]
7545 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
7546 used (char *) instead of (void *) and had casts all over the place.
7549 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
7552 *) Retain source code compatibility for BN_prime_checks macro:
7553 BN_is_prime(..., BN_prime_checks, ...) now uses
7554 BN_prime_checks_for_size to determine the appropriate number of
7555 Rabin-Miller iterations.
7558 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
7559 DH_CHECK_P_NOT_SAFE_PRIME.
7560 (Check if this is true? OpenPGP calls them "strong".)
7563 *) Merge the functionality of "dh" and "gendh" programs into a new program
7564 "dhparam". The old programs are retained for now but will handle DH keys
7565 (instead of parameters) in future.
7568 *) Make the ciphers, s_server and s_client programs check the return values
7569 when a new cipher list is set.
7572 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
7573 ciphers. Before when the 56bit ciphers were enabled the sorting was
7576 The syntax for the cipher sorting has been extended to support sorting by
7577 cipher-strength (using the strength_bits hard coded in the tables).
7578 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
7580 Fix a bug in the cipher-command parser: when supplying a cipher command
7581 string with an "undefined" symbol (neither command nor alphanumeric
7582 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
7583 an error is flagged.
7585 Due to the strength-sorting extension, the code of the
7586 ssl_create_cipher_list() function was completely rearranged. I hope that
7587 the readability was also increased :-)
7588 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
7590 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
7591 for the first serial number and places 2 in the serial number file. This
7592 avoids problems when the root CA is created with serial number zero and
7593 the first user certificate has the same issuer name and serial number
7597 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
7598 the new code. Add documentation for this stuff.
7601 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
7602 X509_*() to X509at_*() on the grounds that they don't handle X509
7603 structures and behave in an analagous way to the X509v3 functions:
7604 they shouldn't be called directly but wrapper functions should be used
7607 So we also now have some wrapper functions that call the X509at functions
7608 when passed certificate requests. (TO DO: similar things can be done with
7609 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
7610 things. Some of these need some d2i or i2d and print functionality
7611 because they handle more complex structures.)
7614 *) Add missing #ifndefs that caused missing symbols when building libssl
7615 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
7616 NO_RSA in ssl/s2*.c.
7617 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
7619 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
7620 has a return value which indicates the quality of the random data
7621 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
7622 error queue. New function RAND_pseudo_bytes() generates output that is
7623 guaranteed to be unique but not unpredictable. RAND_add is like
7624 RAND_seed, but takes an extra argument for an entropy estimate
7625 (RAND_seed always assumes full entropy).
7628 *) Do more iterations of Rabin-Miller probable prime test (specifically,
7629 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
7630 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
7631 in crypto/bn/bn_prime.c for the complete table). This guarantees a
7632 false-positive rate of at most 2^-80 for random input.
7635 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
7638 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
7639 in the 0.9.5 release), this returns the chain
7640 from an X509_CTX structure with a dup of the stack and all
7641 the X509 reference counts upped: so the stack will exist
7642 after X509_CTX_cleanup() has been called. Modify pkcs12.c
7645 Also make SSL_SESSION_print() print out the verify return
7649 *) Add manpage for the pkcs12 command. Also change the default
7650 behaviour so MAC iteration counts are used unless the new
7651 -nomaciter option is used. This improves file security and
7652 only older versions of MSIE (4.0 for example) need it.
7655 *) Honor the no-xxx Configure options when creating .DEF files.
7658 *) Add PKCS#10 attributes to field table: challengePassword,
7659 unstructuredName and unstructuredAddress. These are taken from
7660 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
7661 international characters are used.
7663 More changes to X509_ATTRIBUTE code: allow the setting of types
7664 based on strings. Remove the 'loc' parameter when adding
7665 attributes because these will be a SET OF encoding which is sorted
7669 *) Initial changes to the 'req' utility to allow request generation
7670 automation. This will allow an application to just generate a template
7671 file containing all the field values and have req construct the
7674 Initial support for X509_ATTRIBUTE handling. Stacks of these are
7675 used all over the place including certificate requests and PKCS#7
7676 structures. They are currently handled manually where necessary with
7677 some primitive wrappers for PKCS#7. The new functions behave in a
7678 manner analogous to the X509 extension functions: they allow
7679 attributes to be looked up by NID and added.
7681 Later something similar to the X509V3 code would be desirable to
7682 automatically handle the encoding, decoding and printing of the
7683 more complex types. The string types like challengePassword can
7684 be handled by the string table functions.
7686 Also modified the multi byte string table handling. Now there is
7687 a 'global mask' which masks out certain types. The table itself
7688 can use the flag STABLE_NO_MASK to ignore the mask setting: this
7689 is useful when for example there is only one permissible type
7690 (as in countryName) and using the mask might result in no valid
7694 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
7695 SSL_get_peer_finished to allow applications to obtain the latest
7696 Finished messages sent to the peer or expected from the peer,
7697 respectively. (SSL_get_peer_finished is usually the Finished message
7698 actually received from the peer, otherwise the protocol will be aborted.)
7700 As the Finished message are message digests of the complete handshake
7701 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
7702 be used for external authentication procedures when the authentication
7703 provided by SSL/TLS is not desired or is not enough.
7706 *) Enhanced support for Alpha Linux is added. Now ./config checks if
7707 the host supports BWX extension and if Compaq C is present on the
7708 $PATH. Just exploiting of the BWX extension results in 20-30%
7709 performance kick for some algorithms, e.g. DES and RC4 to mention
7710 a couple. Compaq C in turn generates ~20% faster code for MD5 and
7714 *) Add support for MS "fast SGC". This is arguably a violation of the
7715 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
7716 weak crypto and after checking the certificate is SGC a second one
7717 with strong crypto. MS SGC stops the first handshake after receiving
7718 the server certificate message and sends a second client hello. Since
7719 a server will typically do all the time consuming operations before
7720 expecting any further messages from the client (server key exchange
7721 is the most expensive) there is little difference between the two.
7723 To get OpenSSL to support MS SGC we have to permit a second client
7724 hello message after we have sent server done. In addition we have to
7725 reset the MAC if we do get this second client hello.
7728 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
7729 if a DER encoded private key is RSA or DSA traditional format. Changed
7730 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
7731 format DER encoded private key. Newer code should use PKCS#8 format which
7732 has the key type encoded in the ASN1 structure. Added DER private key
7733 support to pkcs8 application.
7736 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
7737 ciphersuites has been selected (as required by the SSL 3/TLS 1
7738 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
7739 is set, we interpret this as a request to violate the specification
7740 (the worst that can happen is a handshake failure, and 'correct'
7741 behaviour would result in a handshake failure anyway).
7744 *) In SSL_CTX_add_session, take into account that there might be multiple
7745 SSL_SESSION structures with the same session ID (e.g. when two threads
7746 concurrently obtain them from an external cache).
7747 The internal cache can handle only one SSL_SESSION with a given ID,
7748 so if there's a conflict, we now throw out the old one to achieve
7752 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
7753 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
7754 some routines that use cipher OIDs: some ciphers do not have OIDs
7755 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
7759 *) Simplify the trust setting structure and code. Now we just have
7760 two sequences of OIDs for trusted and rejected settings. These will
7761 typically have values the same as the extended key usage extension
7762 and any application specific purposes.
7764 The trust checking code now has a default behaviour: it will just
7765 check for an object with the same NID as the passed id. Functions can
7766 be provided to override either the default behaviour or the behaviour
7767 for a given id. SSL client, server and email already have functions
7768 in place for compatibility: they check the NID and also return "trusted"
7769 if the certificate is self signed.
7772 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
7773 traditional format into an EVP_PKEY structure.
7776 *) Add a password callback function PEM_cb() which either prompts for
7777 a password if usr_data is NULL or otherwise assumes it is a null
7778 terminated password. Allow passwords to be passed on command line
7779 environment or config files in a few more utilities.
7782 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
7783 keys. Add some short names for PKCS#8 PBE algorithms and allow them
7784 to be specified on the command line for the pkcs8 and pkcs12 utilities.
7785 Update documentation.
7788 *) Support for ASN1 "NULL" type. This could be handled before by using
7789 ASN1_TYPE but there wasn't any function that would try to read a NULL
7790 and produce an error if it couldn't. For compatibility we also have
7791 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
7792 don't allocate anything because they don't need to.
7795 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
7797 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
7799 *) Rebuild of the memory allocation routines used by OpenSSL code and
7800 possibly others as well. The purpose is to make an interface that
7801 provide hooks so anyone can build a separate set of allocation and
7802 deallocation routines to be used by OpenSSL, for example memory
7803 pool implementations, or something else, which was previously hard
7804 since Malloc(), Realloc() and Free() were defined as macros having
7805 the values malloc, realloc and free, respectively (except for Win32
7806 compilations). The same is provided for memory debugging code.
7807 OpenSSL already comes with functionality to find memory leaks, but
7808 this gives people a chance to debug other memory problems.
7810 With these changes, a new set of functions and macros have appeared:
7812 CRYPTO_set_mem_debug_functions() [F]
7813 CRYPTO_get_mem_debug_functions() [F]
7814 CRYPTO_dbg_set_options() [F]
7815 CRYPTO_dbg_get_options() [F]
7816 CRYPTO_malloc_debug_init() [M]
7818 The memory debug functions are NULL by default, unless the library
7819 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
7820 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
7821 gives the standard debugging functions that come with OpenSSL) or
7822 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
7823 provided by the library user) must be used. When the standard
7824 debugging functions are used, CRYPTO_dbg_set_options can be used to
7825 request additional information:
7826 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
7827 the CRYPTO_MDEBUG_xxx macro when compiling the library.
7829 Also, things like CRYPTO_set_mem_functions will always give the
7830 expected result (the new set of functions is used for allocation
7831 and deallocation) at all times, regardless of platform and compiler
7834 To finish it up, some functions that were never use in any other
7835 way than through macros have a new API and new semantic:
7838 CRYPTO_dbg_realloc()
7841 All macros of value have retained their old syntax.
7842 [Richard Levitte and Bodo Moeller]
7844 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
7845 ordering of SMIMECapabilities wasn't in "strength order" and there
7846 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
7850 *) Some ASN1 types with illegal zero length encoding (INTEGER,
7851 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
7852 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
7854 *) Merge in my S/MIME library for OpenSSL. This provides a simple
7855 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
7856 functionality to handle multipart/signed properly) and a utility
7857 called 'smime' to call all this stuff. This is based on code I
7858 originally wrote for Celo who have kindly allowed it to be
7859 included in OpenSSL.
7862 *) Add variants des_set_key_checked and des_set_key_unchecked of
7863 des_set_key (aka des_key_sched). Global variable des_check_key
7864 decides which of these is called by des_set_key; this way
7865 des_check_key behaves as it always did, but applications and
7866 the library itself, which was buggy for des_check_key == 1,
7867 have a cleaner way to pick the version they need.
7870 *) New function PKCS12_newpass() which changes the password of a
7874 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
7875 dynamic mix. In both cases the ids can be used as an index into the
7876 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
7877 functions so they accept a list of the field values and the
7878 application doesn't need to directly manipulate the X509_TRUST
7882 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
7886 *) Modify the way the V3 extension code looks up extensions. This now
7887 works in a similar way to the object code: we have some "standard"
7888 extensions in a static table which is searched with OBJ_bsearch()
7889 and the application can add dynamic ones if needed. The file
7890 crypto/x509v3/ext_dat.h now has the info: this file needs to be
7891 updated whenever a new extension is added to the core code and kept
7892 in ext_nid order. There is a simple program 'tabtest.c' which checks
7893 this. New extensions are not added too often so this file can readily
7894 be maintained manually.
7896 There are two big advantages in doing things this way. The extensions
7897 can be looked up immediately and no longer need to be "added" using
7898 X509V3_add_standard_extensions(): this function now does nothing.
7899 [Side note: I get *lots* of email saying the extension code doesn't
7900 work because people forget to call this function]
7901 Also no dynamic allocation is done unless new extensions are added:
7902 so if we don't add custom extensions there is no need to call
7903 X509V3_EXT_cleanup().
7906 *) Modify enc utility's salting as follows: make salting the default. Add a
7907 magic header, so unsalted files fail gracefully instead of just decrypting
7908 to garbage. This is because not salting is a big security hole, so people
7909 should be discouraged from doing it.
7912 *) Fixes and enhancements to the 'x509' utility. It allowed a message
7913 digest to be passed on the command line but it only used this
7914 parameter when signing a certificate. Modified so all relevant
7915 operations are affected by the digest parameter including the
7916 -fingerprint and -x509toreq options. Also -x509toreq choked if a
7917 DSA key was used because it didn't fix the digest.
7920 *) Initial certificate chain verify code. Currently tests the untrusted
7921 certificates for consistency with the verify purpose (which is set
7922 when the X509_STORE_CTX structure is set up) and checks the pathlength.
7924 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
7925 this is because it will reject chains with invalid extensions whereas
7926 every previous version of OpenSSL and SSLeay made no checks at all.
7928 Trust code: checks the root CA for the relevant trust settings. Trust
7929 settings have an initial value consistent with the verify purpose: e.g.
7930 if the verify purpose is for SSL client use it expects the CA to be
7931 trusted for SSL client use. However the default value can be changed to
7932 permit custom trust settings: one example of this would be to only trust
7933 certificates from a specific "secure" set of CAs.
7935 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
7936 which should be used for version portability: especially since the
7937 verify structure is likely to change more often now.
7939 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
7940 to set them. If not set then assume SSL clients will verify SSL servers
7943 Two new options to the verify program: -untrusted allows a set of
7944 untrusted certificates to be passed in and -purpose which sets the
7945 intended purpose of the certificate. If a purpose is set then the
7946 new chain verify code is used to check extension consistency.
7949 *) Support for the authority information access extension.
7952 *) Modify RSA and DSA PEM read routines to transparently handle
7953 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
7954 public keys in a format compatible with certificate
7955 SubjectPublicKeyInfo structures. Unfortunately there were already
7956 functions called *_PublicKey_* which used various odd formats so
7957 these are retained for compatibility: however the DSA variants were
7958 never in a public release so they have been deleted. Changed dsa/rsa
7959 utilities to handle the new format: note no releases ever handled public
7960 keys so we should be OK.
7962 The primary motivation for this change is to avoid the same fiasco
7963 that dogs private keys: there are several incompatible private key
7964 formats some of which are standard and some OpenSSL specific and
7965 require various evil hacks to allow partial transparent handling and
7966 even then it doesn't work with DER formats. Given the option anything
7967 other than PKCS#8 should be dumped: but the other formats have to
7968 stay in the name of compatibility.
7970 With public keys and the benefit of hindsight one standard format
7971 is used which works with EVP_PKEY, RSA or DSA structures: though
7972 it clearly returns an error if you try to read the wrong kind of key.
7974 Added a -pubkey option to the 'x509' utility to output the public key.
7975 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
7976 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
7977 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
7978 that do the same as the EVP_PKEY_assign_*() except they up the
7979 reference count of the added key (they don't "swallow" the
7983 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
7984 CRLs would fail if the file contained no certificates or no CRLs:
7985 added a new function to read in both types and return the number
7986 read: this means that if none are read it will be an error. The
7987 DER versions of the certificate and CRL reader would always fail
7988 because it isn't possible to mix certificates and CRLs in DER format
7989 without choking one or the other routine. Changed this to just read
7990 a certificate: this is the best we can do. Also modified the code
7991 in apps/verify.c to take notice of return codes: it was previously
7992 attempting to read in certificates from NULL pointers and ignoring
7993 any errors: this is one reason why the cert and CRL reader seemed
7994 to work. It doesn't check return codes from the default certificate
7995 routines: these may well fail if the certificates aren't installed.
7998 *) Code to support otherName option in GeneralName.
8001 *) First update to verify code. Change the verify utility
8002 so it warns if it is passed a self signed certificate:
8003 for consistency with the normal behaviour. X509_verify
8004 has been modified to it will now verify a self signed
8005 certificate if *exactly* the same certificate appears
8006 in the store: it was previously impossible to trust a
8007 single self signed certificate. This means that:
8008 openssl verify ss.pem
8009 now gives a warning about a self signed certificate but
8010 openssl verify -CAfile ss.pem ss.pem
8014 *) For servers, store verify_result in SSL_SESSION data structure
8015 (and add it to external session representation).
8016 This is needed when client certificate verifications fails,
8017 but an application-provided verification callback (set by
8018 SSL_CTX_set_cert_verify_callback) allows accepting the session
8019 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
8020 but returns 1): When the session is reused, we have to set
8021 ssl->verify_result to the appropriate error code to avoid
8023 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
8025 *) Fix a bug in the new PKCS#7 code: it didn't consider the
8026 case in PKCS7_dataInit() where the signed PKCS7 structure
8027 didn't contain any existing data because it was being created.
8028 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
8030 *) Add a salt to the key derivation routines in enc.c. This
8031 forms the first 8 bytes of the encrypted file. Also add a
8032 -S option to allow a salt to be input on the command line.
8035 *) New function X509_cmp(). Oddly enough there wasn't a function
8036 to compare two certificates. We do this by working out the SHA1
8037 hash and comparing that. X509_cmp() will be needed by the trust
8041 *) SSL_get1_session() is like SSL_get_session(), but increments
8042 the reference count in the SSL_SESSION returned.
8043 [Geoff Thorpe <geoff@eu.c2.net>]
8045 *) Fix for 'req': it was adding a null to request attributes.
8046 Also change the X509_LOOKUP and X509_INFO code to handle
8047 certificate auxiliary information.
8050 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
8054 *) Add the possibility to add extra information to the memory leak
8055 detecting output, to form tracebacks, showing from where each
8056 allocation was originated: CRYPTO_push_info("constant string") adds
8057 the string plus current file name and line number to a per-thread
8058 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
8059 is like calling CYRPTO_pop_info() until the stack is empty.
8060 Also updated memory leak detection code to be multi-thread-safe.
8063 *) Add options -text and -noout to pkcs7 utility and delete the
8064 encryption options which never did anything. Update docs.
8067 *) Add options to some of the utilities to allow the pass phrase
8068 to be included on either the command line (not recommended on
8069 OSes like Unix) or read from the environment. Update the
8070 manpages and fix a few bugs.
8073 *) Add a few manpages for some of the openssl commands.
8076 *) Fix the -revoke option in ca. It was freeing up memory twice,
8077 leaking and not finding already revoked certificates.
8080 *) Extensive changes to support certificate auxiliary information.
8081 This involves the use of X509_CERT_AUX structure and X509_AUX
8082 functions. An X509_AUX function such as PEM_read_X509_AUX()
8083 can still read in a certificate file in the usual way but it
8084 will also read in any additional "auxiliary information". By
8085 doing things this way a fair degree of compatibility can be
8086 retained: existing certificates can have this information added
8087 using the new 'x509' options.
8089 Current auxiliary information includes an "alias" and some trust
8090 settings. The trust settings will ultimately be used in enhanced
8091 certificate chain verification routines: currently a certificate
8092 can only be trusted if it is self signed and then it is trusted
8096 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
8097 The problem was that one of the replacement routines had not been working
8098 since SSLeay releases. For now the offending routine has been replaced
8099 with non-optimised assembler. Even so, this now gives around 95%
8100 performance improvement for 1024 bit RSA signs.
8103 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
8104 handling. Most clients have the effective key size in bits equal to
8105 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
8106 A few however don't do this and instead use the size of the decrypted key
8107 to determine the RC2 key length and the AlgorithmIdentifier to determine
8108 the effective key length. In this case the effective key length can still
8109 be 40 bits but the key length can be 168 bits for example. This is fixed
8110 by manually forcing an RC2 key into the EVP_PKEY structure because the
8111 EVP code can't currently handle unusual RC2 key sizes: it always assumes
8112 the key length and effective key length are equal.
8115 *) Add a bunch of functions that should simplify the creation of
8116 X509_NAME structures. Now you should be able to do:
8117 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
8118 and have it automatically work out the correct field type and fill in
8119 the structures. The more adventurous can try:
8120 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
8121 and it will (hopefully) work out the correct multibyte encoding.
8124 *) Change the 'req' utility to use the new field handling and multibyte
8125 copy routines. Before the DN field creation was handled in an ad hoc
8126 way in req, ca, and x509 which was rather broken and didn't support
8127 BMPStrings or UTF8Strings. Since some software doesn't implement
8128 BMPStrings or UTF8Strings yet, they can be enabled using the config file
8129 using the dirstring_type option. See the new comment in the default
8130 openssl.cnf for more info.
8133 *) Make crypto/rand/md_rand.c more robust:
8134 - Assure unique random numbers after fork().
8135 - Make sure that concurrent threads access the global counter and
8136 md serializably so that we never lose entropy in them
8137 or use exactly the same state in multiple threads.
8138 Access to the large state is not always serializable because
8139 the additional locking could be a performance killer, and
8140 md should be large enough anyway.
8143 *) New file apps/app_rand.c with commonly needed functionality
8144 for handling the random seed file.
8146 Use the random seed file in some applications that previously did not:
8148 dsaparam -genkey (which also ignored its '-rand' option),
8151 x509 (when signing).
8152 Except on systems with /dev/urandom, it is crucial to have a random
8153 seed file at least for key creation, DSA signing, and for DH exchanges;
8154 for RSA signatures we could do without one.
8156 gendh and gendsa (unlike genrsa) used to read only the first byte
8157 of each file listed in the '-rand' option. The function as previously
8158 found in genrsa is now in app_rand.c and is used by all programs
8159 that support '-rand'.
8162 *) In RAND_write_file, use mode 0600 for creating files;
8163 don't just chmod when it may be too late.
8166 *) Report an error from X509_STORE_load_locations
8167 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
8170 *) New function ASN1_mbstring_copy() this copies a string in either
8171 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
8172 into an ASN1_STRING type. A mask of permissible types is passed
8173 and it chooses the "minimal" type to use or an error if not type
8177 *) Add function equivalents to the various macros in asn1.h. The old
8178 macros are retained with an M_ prefix. Code inside the library can
8179 use the M_ macros. External code (including the openssl utility)
8180 should *NOT* in order to be "shared library friendly".
8183 *) Add various functions that can check a certificate's extensions
8184 to see if it usable for various purposes such as SSL client,
8185 server or S/MIME and CAs of these types. This is currently
8186 VERY EXPERIMENTAL but will ultimately be used for certificate chain
8187 verification. Also added a -purpose flag to x509 utility to
8188 print out all the purposes.
8191 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
8195 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
8196 for, obtain and decode and extension and obtain its critical flag.
8197 This allows all the necessary extension code to be handled in a
8198 single function call.
8201 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
8202 platforms. See crypto/rc4/rc4_enc.c for further details.
8205 *) New -noout option to asn1parse. This causes no output to be produced
8206 its main use is when combined with -strparse and -out to extract data
8207 from a file (which may not be in ASN.1 format).
8210 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
8211 when producing the local key id.
8212 [Richard Levitte <levitte@stacken.kth.se>]
8214 *) New option -dhparam in s_server. This allows a DH parameter file to be
8215 stated explicitly. If it is not stated then it tries the first server
8216 certificate file. The previous behaviour hard coded the filename
8220 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
8221 a public key to be input or output. For example:
8222 openssl rsa -in key.pem -pubout -out pubkey.pem
8223 Also added necessary DSA public key functions to handle this.
8226 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
8227 in the message. This was handled by allowing
8228 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
8229 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
8231 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
8232 to the end of the strings whereas this didn't. This would cause problems
8233 if strings read with d2i_ASN1_bytes() were later modified.
8234 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
8236 *) Fix for base64 decode bug. When a base64 bio reads only one line of
8237 data and it contains EOF it will end up returning an error. This is
8238 caused by input 46 bytes long. The cause is due to the way base64
8239 BIOs find the start of base64 encoded data. They do this by trying a
8240 trial decode on each line until they find one that works. When they
8241 do a flag is set and it starts again knowing it can pass all the
8242 data directly through the decoder. Unfortunately it doesn't reset
8243 the context it uses. This means that if EOF is reached an attempt
8244 is made to pass two EOFs through the context and this causes the
8245 resulting error. This can also cause other problems as well. As is
8246 usual with these problems it takes *ages* to find and the fix is
8247 trivial: move one line.
8248 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
8250 *) Ugly workaround to get s_client and s_server working under Windows. The
8251 old code wouldn't work because it needed to select() on sockets and the
8252 tty (for keypresses and to see if data could be written). Win32 only
8253 supports select() on sockets so we select() with a 1s timeout on the
8254 sockets and then see if any characters are waiting to be read, if none
8255 are present then we retry, we also assume we can always write data to
8256 the tty. This isn't nice because the code then blocks until we've
8257 received a complete line of data and it is effectively polling the
8258 keyboard at 1s intervals: however it's quite a bit better than not
8259 working at all :-) A dedicated Windows application might handle this
8260 with an event loop for example.
8263 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
8264 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
8265 will be called when RSA_sign() and RSA_verify() are used. This is useful
8266 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
8267 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
8268 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
8269 This necessitated the support of an extra signature type NID_md5_sha1
8270 for SSL signatures and modifications to the SSL library to use it instead
8271 of calling RSA_public_decrypt() and RSA_private_encrypt().
8274 *) Add new -verify -CAfile and -CApath options to the crl program, these
8275 will lookup a CRL issuers certificate and verify the signature in a
8276 similar way to the verify program. Tidy up the crl program so it
8277 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
8278 less strict. It will now permit CRL extensions even if it is not
8279 a V2 CRL: this will allow it to tolerate some broken CRLs.
8282 *) Initialize all non-automatic variables each time one of the openssl
8283 sub-programs is started (this is necessary as they may be started
8284 multiple times from the "OpenSSL>" prompt).
8285 [Lennart Bang, Bodo Moeller]
8287 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
8288 removing all other RSA functionality (this is what NO_RSA does). This
8289 is so (for example) those in the US can disable those operations covered
8290 by the RSA patent while allowing storage and parsing of RSA keys and RSA
8294 *) Non-copying interface to BIO pairs.
8295 (still largely untested)
8298 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
8299 ASCII string. This was handled independently in various places before.
8302 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
8303 UTF8 strings a character at a time.
8306 *) Use client_version from client hello to select the protocol
8307 (s23_srvr.c) and for RSA client key exchange verification
8308 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
8311 *) Add various utility functions to handle SPKACs, these were previously
8312 handled by poking round in the structure internals. Added new function
8313 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
8314 print, verify and generate SPKACs. Based on an original idea from
8315 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
8318 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
8321 *) Allow the config file extension section to be overwritten on the
8322 command line. Based on an original idea from Massimiliano Pala
8323 <madwolf@comune.modena.it>. The new option is called -extensions
8324 and can be applied to ca, req and x509. Also -reqexts to override
8325 the request extensions in req and -crlexts to override the crl extensions
8329 *) Add new feature to the SPKAC handling in ca. Now you can include
8330 the same field multiple times by preceding it by "XXXX." for example:
8333 this is the same syntax as used in the req config file.
8336 *) Allow certificate extensions to be added to certificate requests. These
8337 are specified in a 'req_extensions' option of the req section of the
8338 config file. They can be printed out with the -text option to req but
8339 are otherwise ignored at present.
8342 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
8343 data read consists of only the final block it would not decrypted because
8344 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
8345 A misplaced 'break' also meant the decrypted final block might not be
8346 copied until the next read.
8349 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
8350 a few extra parameters to the DH structure: these will be useful if
8351 for example we want the value of 'q' or implement X9.42 DH.
8354 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
8355 provides hooks that allow the default DSA functions or functions on a
8356 "per key" basis to be replaced. This allows hardware acceleration and
8357 hardware key storage to be handled without major modification to the
8358 library. Also added low level modexp hooks and CRYPTO_EX structure and
8359 associated functions.
8362 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
8363 as "read only": it can't be written to and the buffer it points to will
8364 not be freed. Reading from a read only BIO is much more efficient than
8365 a normal memory BIO. This was added because there are several times when
8366 an area of memory needs to be read from a BIO. The previous method was
8367 to create a memory BIO and write the data to it, this results in two
8368 copies of the data and an O(n^2) reading algorithm. There is a new
8369 function BIO_new_mem_buf() which creates a read only memory BIO from
8370 an area of memory. Also modified the PKCS#7 routines to use read only
8374 *) Bugfix: ssl23_get_client_hello did not work properly when called in
8375 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
8376 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
8377 but a retry condition occured while trying to read the rest.
8380 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
8381 NID_pkcs7_encrypted by default: this was wrong since this should almost
8382 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
8383 the encrypted data type: this is a more sensible place to put it and it
8384 allows the PKCS#12 code to be tidied up that duplicated this
8388 *) Changed obj_dat.pl script so it takes its input and output files on
8389 the command line. This should avoid shell escape redirection problems
8393 *) Initial support for certificate extension requests, these are included
8394 in things like Xenroll certificate requests. Included functions to allow
8395 extensions to be obtained and added.
8398 *) -crlf option to s_client and s_server for sending newlines as
8399 CRLF (as required by many protocols).
8402 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
8404 *) Install libRSAglue.a when OpenSSL is built with RSAref.
8405 [Ralf S. Engelschall]
8407 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
8408 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
8410 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
8414 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
8415 DH parameters/keys (q is lost during that conversion, but the resulting
8416 DH parameters contain its length).
8418 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
8419 much faster than DH_generate_parameters (which creates parameters
8420 where p = 2*q + 1), and also the smaller q makes DH computations
8421 much more efficient (160-bit exponentiation instead of 1024-bit
8422 exponentiation); so this provides a convenient way to support DHE
8423 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
8424 utter importance to use
8425 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8427 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
8428 when such DH parameters are used, because otherwise small subgroup
8429 attacks may become possible!
8432 *) Avoid memory leak in i2d_DHparams.
8435 *) Allow the -k option to be used more than once in the enc program:
8436 this allows the same encrypted message to be read by multiple recipients.
8439 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
8440 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
8441 it will always use the numerical form of the OID, even if it has a short
8445 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
8446 method only got called if p,q,dmp1,dmq1,iqmp components were present,
8447 otherwise bn_mod_exp was called. In the case of hardware keys for example
8448 no private key components need be present and it might store extra data
8449 in the RSA structure, which cannot be accessed from bn_mod_exp.
8450 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
8451 private key operations.
8454 *) Added support for SPARC Linux.
8457 *) pem_password_cb function type incompatibly changed from
8458 typedef int pem_password_cb(char *buf, int size, int rwflag);
8460 ....(char *buf, int size, int rwflag, void *userdata);
8461 so that applications can pass data to their callbacks:
8462 The PEM[_ASN1]_{read,write}... functions and macros now take an
8463 additional void * argument, which is just handed through whenever
8464 the password callback is called.
8465 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
8467 New function SSL_CTX_set_default_passwd_cb_userdata.
8469 Compatibility note: As many C implementations push function arguments
8470 onto the stack in reverse order, the new library version is likely to
8471 interoperate with programs that have been compiled with the old
8472 pem_password_cb definition (PEM_whatever takes some data that
8473 happens to be on the stack as its last argument, and the callback
8474 just ignores this garbage); but there is no guarantee whatsoever that
8477 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
8478 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
8479 problems not only on Windows, but also on some Unix platforms.
8480 To avoid problematic command lines, these definitions are now in an
8481 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
8482 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
8485 *) MIPS III/IV assembler module is reimplemented.
8488 *) More DES library cleanups: remove references to srand/rand and
8489 delete an unused file.
8492 *) Add support for the the free Netwide assembler (NASM) under Win32,
8493 since not many people have MASM (ml) and it can be hard to obtain.
8494 This is currently experimental but it seems to work OK and pass all
8495 the tests. Check out INSTALL.W32 for info.
8498 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
8499 without temporary keys kept an extra copy of the server key,
8500 and connections with temporary keys did not free everything in case
8504 *) New function RSA_check_key and new openssl rsa option -check
8505 for verifying the consistency of RSA keys.
8506 [Ulf Moeller, Bodo Moeller]
8508 *) Various changes to make Win32 compile work:
8509 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
8510 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
8511 comparison" warnings.
8512 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
8515 *) Add a debugging option to PKCS#5 v2 key generation function: when
8516 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
8517 derived keys are printed to stderr.
8520 *) Copy the flags in ASN1_STRING_dup().
8521 [Roman E. Pavlov <pre@mo.msk.ru>]
8523 *) The x509 application mishandled signing requests containing DSA
8524 keys when the signing key was also DSA and the parameters didn't match.
8526 It was supposed to omit the parameters when they matched the signing key:
8527 the verifying software was then supposed to automatically use the CA's
8528 parameters if they were absent from the end user certificate.
8530 Omitting parameters is no longer recommended. The test was also
8531 the wrong way round! This was probably due to unusual behaviour in
8532 EVP_cmp_parameters() which returns 1 if the parameters match.
8533 This meant that parameters were omitted when they *didn't* match and
8534 the certificate was useless. Certificates signed with 'ca' didn't have
8536 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
8538 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
8539 The interface is as follows:
8540 Applications can use
8541 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
8542 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
8543 "off" is now the default.
8544 The library internally uses
8545 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
8546 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
8547 to disable memory-checking temporarily.
8549 Some inconsistent states that previously were possible (and were
8550 even the default) are now avoided.
8552 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
8553 with each memory chunk allocated; this is occasionally more helpful
8554 than just having a counter.
8556 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
8558 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
8562 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
8563 which largely parallels "options", but is for changing API behaviour,
8564 whereas "options" are about protocol behaviour.
8565 Initial "mode" flags are:
8567 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
8568 a single record has been written.
8569 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
8570 retries use the same buffer location.
8571 (But all of the contents must be
8575 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
8578 *) Fix problems with no-hmac etc.
8579 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
8581 *) New functions RSA_get_default_method(), RSA_set_method() and
8582 RSA_get_method(). These allows replacement of RSA_METHODs without having
8583 to mess around with the internals of an RSA structure.
8586 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
8587 Also really enable memory leak checks in openssl.c and in some
8589 [Chad C. Mulligan, Bodo Moeller]
8591 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
8592 up the length of negative integers. This has now been simplified to just
8593 store the length when it is first determined and use it later, rather
8594 than trying to keep track of where data is copied and updating it to
8596 [Steve Henson, reported by Brien Wheeler
8597 <bwheeler@authentica-security.com>]
8599 *) Add a new function PKCS7_signatureVerify. This allows the verification
8600 of a PKCS#7 signature but with the signing certificate passed to the
8601 function itself. This contrasts with PKCS7_dataVerify which assumes the
8602 certificate is present in the PKCS#7 structure. This isn't always the
8603 case: certificates can be omitted from a PKCS#7 structure and be
8604 distributed by "out of band" means (such as a certificate database).
8607 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
8608 function prototypes in pem.h, also change util/mkdef.pl to add the
8609 necessary function names.
8612 *) mk1mf.pl (used by Windows builds) did not properly read the
8613 options set by Configure in the top level Makefile, and Configure
8614 was not even able to write more than one option correctly.
8615 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
8618 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
8619 file to be loaded from a BIO or FILE pointer. The BIO version will
8620 for example allow memory BIOs to contain config info.
8623 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
8624 Whoever hopes to achieve shared-library compatibility across versions
8625 must use this, not the compile-time macro.
8626 (Exercise 0.9.4: Which is the minimum library version required by
8628 Note: All this applies only to multi-threaded programs, others don't
8632 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
8633 through a BIO pair triggered the default case, i.e.
8634 SSLerr(...,SSL_R_UNKNOWN_STATE).
8637 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
8638 can use the SSL library even if none of the specific BIOs is
8642 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
8643 for the encoded length.
8644 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
8646 *) Add initial documentation of the X509V3 functions.
8649 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
8650 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
8651 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
8652 secure PKCS#8 private key format with a high iteration count.
8655 *) Fix determination of Perl interpreter: A perl or perl5
8656 _directory_ in $PATH was also accepted as the interpreter.
8657 [Ralf S. Engelschall]
8659 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
8660 wrong with it but it was very old and did things like calling
8661 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
8665 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
8666 to use the new extension code.
8669 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
8670 with macros. This should make it easier to change their form, add extra
8671 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
8675 *) Add to configuration table a new entry that can specify an alternative
8676 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
8677 according to Mark Crispin <MRC@Panda.COM>.
8681 *) DES CBC did not update the IV. Weird.
8684 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
8685 Changing the behaviour of the former might break existing programs --
8686 where IV updating is needed, des_ncbc_encrypt can be used.
8689 *) When bntest is run from "make test" it drives bc to check its
8690 calculations, as well as internally checking them. If an internal check
8691 fails, it needs to cause bc to give a non-zero result or make test carries
8692 on without noticing the failure. Fixed.
8695 *) DES library cleanups.
8698 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
8699 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
8700 ciphers. NOTE: although the key derivation function has been verified
8701 against some published test vectors it has not been extensively tested
8702 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
8706 *) Instead of "mkdir -p", which is not fully portable, use new
8707 Perl script "util/mkdir-p.pl".
8710 *) Rewrite the way password based encryption (PBE) is handled. It used to
8711 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
8712 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
8713 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
8714 the 'parameter' field of the AlgorithmIdentifier is passed to the
8715 underlying key generation function so it must do its own ASN1 parsing.
8716 This has also changed the EVP_PBE_CipherInit() function which now has a
8717 'parameter' argument instead of literal salt and iteration count values
8718 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
8721 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
8722 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
8723 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
8724 KEY" because this clashed with PKCS#8 unencrypted string. Since this
8725 value was just used as a "magic string" and not used directly its
8726 value doesn't matter.
8729 *) Introduce some semblance of const correctness to BN. Shame C doesn't
8733 *) "linux-sparc64" configuration (ultrapenguin).
8734 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
8735 "linux-sparc" configuration.
8736 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
8738 *) config now generates no-xxx options for missing ciphers.
8741 *) Support the EBCDIC character set (work in progress).
8742 File ebcdic.c not yet included because it has a different license.
8743 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8745 *) Support BS2000/OSD-POSIX.
8746 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
8748 *) Make callbacks for key generation use void * instead of char *.
8751 *) Make S/MIME samples compile (not yet tested).
8754 *) Additional typesafe stacks.
8757 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
8761 Changes between 0.9.3 and 0.9.3a [29 May 1999]
8763 *) New configuration variant "sco5-gcc".
8765 *) Updated some demos.
8766 [Sean O Riordain, Wade Scholine]
8768 *) Add missing BIO_free at exit of pkcs12 application.
8771 *) Fix memory leak in conf.c.
8774 *) Updates for Win32 to assembler version of MD5.
8777 *) Set #! path to perl in apps/der_chop to where we found it
8778 instead of using a fixed path.
8781 *) SHA library changes for irix64-mips4-cc.
8784 *) Improvements for VMS support.
8788 Changes between 0.9.2b and 0.9.3 [24 May 1999]
8790 *) Bignum library bug fix. IRIX 6 passes "make test" now!
8791 This also avoids the problems with SC4.2 and unpatched SC5.
8792 [Andy Polyakov <appro@fy.chalmers.se>]
8794 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
8795 These are required because of the typesafe stack would otherwise break
8796 existing code. If old code used a structure member which used to be STACK
8797 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
8798 sk_num or sk_value it would produce an error because the num, data members
8799 are not present in STACK_OF. Now it just produces a warning. sk_set
8800 replaces the old method of assigning a value to sk_value
8801 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
8802 that does this will no longer work (and should use sk_set instead) but
8803 this could be regarded as a "questionable" behaviour anyway.
8806 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
8807 correctly handle encrypted S/MIME data.
8810 *) Change type of various DES function arguments from des_cblock
8811 (which means, in function argument declarations, pointer to char)
8812 to des_cblock * (meaning pointer to array with 8 char elements),
8813 which allows the compiler to do more typechecking; it was like
8814 that back in SSLeay, but with lots of ugly casts.
8816 Introduce new type const_des_cblock.
8819 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
8820 problems: find RecipientInfo structure that matches recipient certificate
8821 and initialise the ASN1 structures properly based on passed cipher.
8824 *) Belatedly make the BN tests actually check the results.
8827 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
8828 to and from BNs: it was completely broken. New compilation option
8829 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
8830 key elements as negative integers.
8833 *) Reorganize and speed up MD5.
8834 [Andy Polyakov <appro@fy.chalmers.se>]
8837 [Richard Levitte <richard@levitte.org>]
8839 *) New option -out to asn1parse to allow the parsed structure to be
8840 output to a file. This is most useful when combined with the -strparse
8841 option to examine the output of things like OCTET STRINGS.
8844 *) Make SSL library a little more fool-proof by not requiring any longer
8845 that SSL_set_{accept,connect}_state be called before
8846 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
8847 in many applications because usually everything *appeared* to work as
8848 intended anyway -- now it really works as intended).
8851 *) Move openssl.cnf out of lib/.
8854 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
8855 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
8856 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
8857 [Ralf S. Engelschall]
8859 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
8860 handle PKCS#7 enveloped data properly.
8861 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
8863 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
8864 copying pointers. The cert_st handling is changed by this in
8865 various ways (and thus what used to be known as ctx->default_cert
8866 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
8867 any longer when s->cert does not give us what we need).
8868 ssl_cert_instantiate becomes obsolete by this change.
8869 As soon as we've got the new code right (possibly it already is?),
8870 we have solved a couple of bugs of the earlier code where s->cert
8871 was used as if it could not have been shared with other SSL structures.
8873 Note that using the SSL API in certain dirty ways now will result
8874 in different behaviour than observed with earlier library versions:
8875 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
8876 does not influence s as it used to.
8878 In order to clean up things more thoroughly, inside SSL_SESSION
8879 we don't use CERT any longer, but a new structure SESS_CERT
8880 that holds per-session data (if available); currently, this is
8881 the peer's certificate chain and, for clients, the server's certificate
8882 and temporary key. CERT holds only those values that can have
8883 meaningful defaults in an SSL_CTX.
8886 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
8887 from the internal representation. Various PKCS#7 fixes: remove some
8888 evil casts and set the enc_dig_alg field properly based on the signing
8892 *) Allow PKCS#12 password to be set from the command line or the
8893 environment. Let 'ca' get its config file name from the environment
8894 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
8898 *) Allow certificate policies extension to use an IA5STRING for the
8899 organization field. This is contrary to the PKIX definition but
8900 VeriSign uses it and IE5 only recognises this form. Document 'x509'
8904 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
8905 without disallowing inline assembler and the like for non-pedantic builds.
8908 *) Support Borland C++ builder.
8909 [Janez Jere <jj@void.si>, modified by Ulf Möller]
8914 *) SHA-1 cleanups and performance enhancements.
8915 [Andy Polyakov <appro@fy.chalmers.se>]
8917 *) Sparc v8plus assembler for the bignum library.
8918 [Andy Polyakov <appro@fy.chalmers.se>]
8920 *) Accept any -xxx and +xxx compiler options in Configure.
8923 *) Update HPUX configuration.
8926 *) Add missing sk_<type>_unshift() function to safestack.h
8927 [Ralf S. Engelschall]
8929 *) New function SSL_CTX_use_certificate_chain_file that sets the
8930 "extra_cert"s in addition to the certificate. (This makes sense
8931 only for "PEM" format files, as chains as a whole are not
8935 *) Support verify_depth from the SSL API.
8936 x509_vfy.c had what can be considered an off-by-one-error:
8937 Its depth (which was not part of the external interface)
8938 was actually counting the number of certificates in a chain;
8939 now it really counts the depth.
8942 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
8943 instead of X509err, which often resulted in confusing error
8944 messages since the error codes are not globally unique
8945 (e.g. an alleged error in ssl3_accept when a certificate
8946 didn't match the private key).
8948 *) New function SSL_CTX_set_session_id_context that allows to set a default
8949 value (so that you don't need SSL_set_session_id_context for each
8950 connection using the SSL_CTX).
8953 *) OAEP decoding bug fix.
8956 *) Support INSTALL_PREFIX for package builders, as proposed by
8960 *) New Configure options "threads" and "no-threads". For systems
8961 where the proper compiler options are known (currently Solaris
8962 and Linux), "threads" is the default.
8965 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
8968 *) Install various scripts to $(OPENSSLDIR)/misc, not to
8969 $(INSTALLTOP)/bin -- they shouldn't clutter directories
8970 such as /usr/local/bin.
8973 *) "make linux-shared" to build shared libraries.
8974 [Niels Poppe <niels@netbox.org>]
8976 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
8979 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
8980 extension adding in x509 utility.
8983 *) Remove NOPROTO sections and error code comments.
8986 *) Partial rewrite of the DEF file generator to now parse the ANSI
8990 *) New Configure options --prefix=DIR and --openssldir=DIR.
8993 *) Complete rewrite of the error code script(s). It is all now handled
8994 by one script at the top level which handles error code gathering,
8995 header rewriting and C source file generation. It should be much better
8996 than the old method: it now uses a modified version of Ulf's parser to
8997 read the ANSI prototypes in all header files (thus the old K&R definitions
8998 aren't needed for error creation any more) and do a better job of
8999 translating function codes into names. The old 'ASN1 error code imbedded
9000 in a comment' is no longer necessary and it doesn't use .err files which
9001 have now been deleted. Also the error code call doesn't have to appear all
9002 on one line (which resulted in some large lines...).
9005 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
9008 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
9009 0 (which usually indicates a closed connection), but continue reading.
9012 *) Fix some race conditions.
9015 *) Add support for CRL distribution points extension. Add Certificate
9016 Policies and CRL distribution points documentation.
9019 *) Move the autogenerated header file parts to crypto/opensslconf.h.
9022 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
9023 8 of keying material. Merlin has also confirmed interop with this fix
9024 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
9025 [Merlin Hughes <merlin@baltimore.ie>]
9027 *) Fix lots of warnings.
9028 [Richard Levitte <levitte@stacken.kth.se>]
9030 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
9031 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
9032 [Richard Levitte <levitte@stacken.kth.se>]
9034 *) Fix problems with sizeof(long) == 8.
9035 [Andy Polyakov <appro@fy.chalmers.se>]
9037 *) Change functions to ANSI C.
9040 *) Fix typos in error codes.
9041 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
9043 *) Remove defunct assembler files from Configure.
9046 *) SPARC v8 assembler BIGNUM implementation.
9047 [Andy Polyakov <appro@fy.chalmers.se>]
9049 *) Support for Certificate Policies extension: both print and set.
9050 Various additions to support the r2i method this uses.
9053 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
9054 return a const string when you are expecting an allocated buffer.
9057 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
9058 types DirectoryString and DisplayText.
9061 *) Add code to allow r2i extensions to access the configuration database,
9062 add an LHASH database driver and add several ctx helper functions.
9065 *) Fix an evil bug in bn_expand2() which caused various BN functions to
9066 fail when they extended the size of a BIGNUM.
9069 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
9070 support typesafe stack.
9073 *) Fix typo in SSL_[gs]et_options().
9074 [Nils Frostberg <nils@medcom.se>]
9076 *) Delete various functions and files that belonged to the (now obsolete)
9077 old X509V3 handling code.
9080 *) New Configure option "rsaref".
9083 *) Don't auto-generate pem.h.
9086 *) Introduce type-safe ASN.1 SETs.
9089 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
9090 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
9092 *) Introduce type-safe STACKs. This will almost certainly break lots of code
9093 that links with OpenSSL (well at least cause lots of warnings), but fear
9094 not: the conversion is trivial, and it eliminates loads of evil casts. A
9095 few STACKed things have been converted already. Feel free to convert more.
9096 In the fullness of time, I'll do away with the STACK type altogether.
9099 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
9100 specified in <certfile> by updating the entry in the index.txt file.
9101 This way one no longer has to edit the index.txt file manually for
9102 revoking a certificate. The -revoke option does the gory details now.
9103 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
9105 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
9106 `-text' option at all and this way the `-noout -text' combination was
9107 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
9108 [Ralf S. Engelschall]
9110 *) Make sure a corresponding plain text error message exists for the
9111 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
9112 verify callback function determined that a certificate was revoked.
9113 [Ralf S. Engelschall]
9115 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
9116 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
9117 all available cipers including rc5, which was forgotten until now.
9118 In order to let the testing shell script know which algorithms
9119 are available, a new (up to now undocumented) command
9120 "openssl list-cipher-commands" is used.
9123 *) Bugfix: s_client occasionally would sleep in select() when
9124 it should have checked SSL_pending() first.
9127 *) New functions DSA_do_sign and DSA_do_verify to provide access to
9128 the raw DSA values prior to ASN.1 encoding.
9131 *) Tweaks to Configure
9132 [Niels Poppe <niels@netbox.org>]
9134 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
9138 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
9141 *) New config option to avoid instructions that are illegal on the 80386.
9142 The default code is faster, but requires at least a 486.
9145 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
9146 SSL2_SERVER_VERSION (not used at all) macros, which are now the
9147 same as SSL2_VERSION anyway.
9150 *) New "-showcerts" option for s_client.
9153 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
9154 application. Various cleanups and fixes.
9157 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
9158 modify error routines to work internally. Add error codes and PBE init
9159 to library startup routines.
9162 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
9163 packing functions to asn1 and evp. Changed function names and error
9164 codes along the way.
9167 *) PKCS12 integration: and so it begins... First of several patches to
9168 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
9169 objects to objects.h
9172 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
9173 and display support for Thawte strong extranet extension.
9176 *) Add LinuxPPC support.
9177 [Jeff Dubrule <igor@pobox.org>]
9179 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
9180 bn_div_words in alpha.s.
9181 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
9183 *) Make sure the RSA OAEP test is skipped under -DRSAref because
9184 OAEP isn't supported when OpenSSL is built with RSAref.
9185 [Ulf Moeller <ulf@fitug.de>]
9187 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
9188 so they no longer are missing under -DNOPROTO.
9189 [Soren S. Jorvang <soren@t.dk>]
9192 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
9194 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
9195 doesn't work when the session is reused. Coming soon!
9198 *) Fix a security hole, that allows sessions to be reused in the wrong
9199 context thus bypassing client cert protection! All software that uses
9200 client certs and session caches in multiple contexts NEEDS PATCHING to
9201 allow session reuse! A fuller solution is in the works.
9202 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
9204 *) Some more source tree cleanups (removed obsolete files
9205 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
9206 permission on "config" script to be executable) and a fix for the INSTALL
9208 [Ulf Moeller <ulf@fitug.de>]
9210 *) Remove some legacy and erroneous uses of malloc, free instead of
9212 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
9214 *) Make rsa_oaep_test return non-zero on error.
9215 [Ulf Moeller <ulf@fitug.de>]
9217 *) Add support for native Solaris shared libraries. Configure
9218 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
9219 if someone would make that last step automatic.
9220 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
9222 *) ctx_size was not built with the right compiler during "make links". Fixed.
9225 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
9226 except NULL ciphers". This means the default cipher list will no longer
9227 enable NULL ciphers. They need to be specifically enabled e.g. with
9228 the string "DEFAULT:eNULL".
9231 *) Fix to RSA private encryption routines: if p < q then it would
9232 occasionally produce an invalid result. This will only happen with
9233 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
9236 *) Be less restrictive and allow also `perl util/perlpath.pl
9237 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
9238 because this way one can also use an interpreter named `perl5' (which is
9239 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
9240 installed as `perl').
9241 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9243 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
9244 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9246 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
9247 advapi32.lib to Win32 build and change the pem test comparision
9248 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
9249 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
9250 and crypto/des/ede_cbcm_enc.c.
9253 *) DES quad checksum was broken on big-endian architectures. Fixed.
9256 *) Comment out two functions in bio.h that aren't implemented. Fix up the
9257 Win32 test batch file so it (might) work again. The Win32 test batch file
9258 is horrible: I feel ill....
9261 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
9262 in e_os.h. Audit of header files to check ANSI and non ANSI
9263 sections: 10 functions were absent from non ANSI section and not exported
9264 from Windows DLLs. Fixed up libeay.num for new functions.
9267 *) Make `openssl version' output lines consistent.
9268 [Ralf S. Engelschall]
9270 *) Fix Win32 symbol export lists for BIO functions: Added
9271 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
9272 to ms/libeay{16,32}.def.
9273 [Ralf S. Engelschall]
9275 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
9276 fine under Unix and passes some trivial tests I've now added. But the
9277 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
9278 added to make sure no one expects that this stuff really works in the
9279 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
9280 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
9282 [Ralf S. Engelschall]
9284 *) Fix the generation of two part addresses in perl.
9285 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
9287 *) Add config entry for Linux on MIPS.
9288 [John Tobey <jtobey@channel1.com>]
9290 *) Make links whenever Configure is run, unless we are on Windoze.
9293 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
9294 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
9298 *) Add a useful kludge to allow package maintainers to specify compiler and
9299 other platforms details on the command line without having to patch the
9300 Configure script everytime: One now can use ``perl Configure
9301 <id>:<details>'', i.e. platform ids are allowed to have details appended
9302 to them (seperated by colons). This is treated as there would be a static
9303 pre-configured entry in Configure's %table under key <id> with value
9304 <details> and ``perl Configure <id>'' is called. So, when you want to
9305 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
9306 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
9307 now, which overrides the FreeBSD-elf entry on-the-fly.
9308 [Ralf S. Engelschall]
9310 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
9313 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
9314 on the `perl Configure ...' command line. This way one can compile
9315 OpenSSL libraries with Position Independent Code (PIC) which is needed
9316 for linking it into DSOs.
9317 [Ralf S. Engelschall]
9319 *) Remarkably, export ciphers were totally broken and no-one had noticed!
9323 *) Cleaned up the LICENSE document: The official contact for any license
9324 questions now is the OpenSSL core team under openssl-core@openssl.org.
9325 And add a paragraph about the dual-license situation to make sure people
9326 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
9327 to the OpenSSL toolkit.
9328 [Ralf S. Engelschall]
9330 *) General source tree makefile cleanups: Made `making xxx in yyy...'
9331 display consistent in the source tree and replaced `/bin/rm' by `rm'.
9332 Additonally cleaned up the `make links' target: Remove unnecessary
9333 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
9334 to speed processing and no longer clutter the display with confusing
9335 stuff. Instead only the actually done links are displayed.
9336 [Ralf S. Engelschall]
9338 *) Permit null encryption ciphersuites, used for authentication only. It used
9339 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
9340 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
9344 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
9345 signed attributes when verifying signatures (this would break them),
9346 the detached data encoding was wrong and public keys obtained using
9347 X509_get_pubkey() weren't freed.
9350 *) Add text documentation for the BUFFER functions. Also added a work around
9351 to a Win95 console bug. This was triggered by the password read stuff: the
9352 last character typed gets carried over to the next fread(). If you were
9353 generating a new cert request using 'req' for example then the last
9354 character of the passphrase would be CR which would then enter the first
9358 *) Added the new `Includes OpenSSL Cryptography Software' button as
9359 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
9360 button and can be used by applications based on OpenSSL to show the
9361 relationship to the OpenSSL project.
9362 [Ralf S. Engelschall]
9364 *) Remove confusing variables in function signatures in files
9365 ssl/ssl_lib.c and ssl/ssl.h.
9366 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9368 *) Don't install bss_file.c under PREFIX/include/
9369 [Lennart Bong <lob@kulthea.stacken.kth.se>]
9371 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
9372 functions that return function pointers and has support for NT specific
9373 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
9374 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
9375 unsigned to signed types: this was killing the Win32 compile.
9378 *) Add new certificate file to stack functions,
9379 SSL_add_dir_cert_subjects_to_stack() and
9380 SSL_add_file_cert_subjects_to_stack(). These largely supplant
9381 SSL_load_client_CA_file(), and can be used to add multiple certs easily
9382 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
9383 This means that Apache-SSL and similar packages don't have to mess around
9384 to add as many CAs as they want to the preferred list.
9387 *) Experiment with doxygen documentation. Currently only partially applied to
9389 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
9390 openssl.doxy as the configuration file.
9393 *) Get rid of remaining C++-style comments which strict C compilers hate.
9394 [Ralf S. Engelschall, pointed out by Carlos Amengual]
9396 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
9397 compiled in by default: it has problems with large keys.
9400 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
9401 DH private keys and/or callback functions which directly correspond to
9402 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
9403 is needed for applications which have to configure certificates on a
9404 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
9406 For the RSA certificate situation is makes no difference, but
9407 for the DSA certificate situation this fixes the "no shared cipher"
9408 problem where the OpenSSL cipher selection procedure failed because the
9409 temporary keys were not overtaken from the context and the API provided
9410 no way to reconfigure them.
9411 The new functions now let applications reconfigure the stuff and they
9412 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
9413 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
9414 non-public-API function ssl_cert_instantiate() is used as a helper
9415 function and also to reduce code redundancy inside ssl_rsa.c.
9416 [Ralf S. Engelschall]
9418 *) Move s_server -dcert and -dkey options out of the undocumented feature
9419 area because they are useful for the DSA situation and should be
9420 recognized by the users.
9421 [Ralf S. Engelschall]
9423 *) Fix the cipher decision scheme for export ciphers: the export bits are
9424 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
9425 SSL_EXP_MASK. So, the original variable has to be used instead of the
9426 already masked variable.
9427 [Richard Levitte <levitte@stacken.kth.se>]
9429 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
9430 [Richard Levitte <levitte@stacken.kth.se>]
9432 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
9433 from `int' to `unsigned int' because it's a length and initialized by
9434 EVP_DigestFinal() which expects an `unsigned int *'.
9435 [Richard Levitte <levitte@stacken.kth.se>]
9437 *) Don't hard-code path to Perl interpreter on shebang line of Configure
9438 script. Instead use the usual Shell->Perl transition trick.
9439 [Ralf S. Engelschall]
9441 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
9442 (in addition to RSA certificates) to match the behaviour of `openssl dsa
9443 -noout -modulus' as it's already the case for `openssl rsa -noout
9444 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
9445 currently the public key is printed (a decision which was already done by
9446 `openssl dsa -modulus' in the past) which serves a similar purpose.
9447 Additionally the NO_RSA no longer completely removes the whole -modulus
9448 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
9450 [Ralf S. Engelschall]
9452 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
9453 BIO. See the source (crypto/evp/bio_ok.c) for more info.
9454 [Arne Ansper <arne@ats.cyber.ee>]
9456 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
9457 to be added. Now both 'req' and 'ca' can use new objects defined in the
9461 *) Add cool BIO that does syslog (or event log on NT).
9462 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
9464 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
9465 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
9466 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
9467 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
9470 *) Add preliminary config info for new extension code.
9473 *) Make RSA_NO_PADDING really use no padding.
9474 [Ulf Moeller <ulf@fitug.de>]
9476 *) Generate errors when private/public key check is done.
9479 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
9480 for some CRL extensions and new objects added.
9483 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
9484 key usage extension and fuller support for authority key id.
9487 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
9488 padding method for RSA, which is recommended for new applications in PKCS
9489 #1 v2.0 (RFC 2437, October 1998).
9490 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
9491 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
9492 against Bleichbacher's attack on RSA.
9493 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
9496 *) Updates to the new SSL compression code
9497 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9499 *) Fix so that the version number in the master secret, when passed
9500 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
9501 (because the server will not accept higher), that the version number
9502 is 0x03,0x01, not 0x03,0x00
9503 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9505 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
9506 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
9507 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
9510 *) Support for RAW extensions where an arbitrary extension can be
9511 created by including its DER encoding. See apps/openssl.cnf for
9515 *) Make sure latest Perl versions don't interpret some generated C array
9516 code as Perl array code in the crypto/err/err_genc.pl script.
9517 [Lars Weber <3weber@informatik.uni-hamburg.de>]
9519 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
9520 not many people have the assembler. Various Win32 compilation fixes and
9521 update to the INSTALL.W32 file with (hopefully) more accurate Win32
9525 *) Modify configure script 'Configure' to automatically create crypto/date.h
9526 file under Win32 and also build pem.h from pem.org. New script
9527 util/mkfiles.pl to create the MINFO file on environments that can't do a
9528 'make files': perl util/mkfiles.pl >MINFO should work.
9531 *) Major rework of DES function declarations, in the pursuit of correctness
9532 and purity. As a result, many evil casts evaporated, and some weirdness,
9533 too. You may find this causes warnings in your code. Zapping your evil
9534 casts will probably fix them. Mostly.
9537 *) Fix for a typo in asn1.h. Bug fix to object creation script
9538 obj_dat.pl. It considered a zero in an object definition to mean
9539 "end of object": none of the objects in objects.h have any zeros
9540 so it wasn't spotted.
9541 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
9543 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
9544 Masking (CBCM). In the absence of test vectors, the best I have been able
9545 to do is check that the decrypt undoes the encrypt, so far. Send me test
9546 vectors if you have them.
9549 *) Correct calculation of key length for export ciphers (too much space was
9550 allocated for null ciphers). This has not been tested!
9553 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
9554 message is now correct (it understands "crypto" and "ssl" on its
9555 command line). There is also now an "update" option. This will update
9556 the util/ssleay.num and util/libeay.num files with any new functions.
9558 perl util/mkdef.pl crypto ssl update
9559 it will update them.
9562 *) Overhauled the Perl interface (perl/*):
9563 - ported BN stuff to OpenSSL's different BN library
9564 - made the perl/ source tree CVS-aware
9565 - renamed the package from SSLeay to OpenSSL (the files still contain
9566 their history because I've copied them in the repository)
9567 - removed obsolete files (the test scripts will be replaced
9568 by better Test::Harness variants in the future)
9569 [Ralf S. Engelschall]
9571 *) First cut for a very conservative source tree cleanup:
9572 1. merge various obsolete readme texts into doc/ssleay.txt
9573 where we collect the old documents and readme texts.
9574 2. remove the first part of files where I'm already sure that we no
9575 longer need them because of three reasons: either they are just temporary
9576 files which were left by Eric or they are preserved original files where
9577 I've verified that the diff is also available in the CVS via "cvs diff
9578 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
9579 the crypto/md/ stuff).
9580 [Ralf S. Engelschall]
9582 *) More extension code. Incomplete support for subject and issuer alt
9583 name, issuer and authority key id. Change the i2v function parameters
9584 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
9585 what that's for :-) Fix to ASN1 macro which messed up
9586 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
9589 *) Preliminary support for ENUMERATED type. This is largely copied from the
9593 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
9594 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9596 *) Make sure `make rehash' target really finds the `openssl' program.
9597 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
9599 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
9600 like to hear about it if this slows down other processors.
9603 *) Add CygWin32 platform information to Configure script.
9604 [Alan Batie <batie@aahz.jf.intel.com>]
9606 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
9607 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
9609 *) New program nseq to manipulate netscape certificate sequences
9612 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
9616 *) Fixes to BN code. Previously the default was to define BN_RECURSION
9617 but the BN code had some problems that would cause failures when
9618 doing certificate verification and some other functions.
9619 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
9621 *) Add ASN1 and PEM code to support netscape certificate sequences.
9624 *) Add ASN1 and PEM code to support netscape certificate sequences.
9627 *) Add several PKIX and private extended key usage OIDs.
9630 *) Modify the 'ca' program to handle the new extension code. Modify
9631 openssl.cnf for new extension format, add comments.
9634 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
9635 and add a sample to openssl.cnf so req -x509 now adds appropriate
9639 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
9640 error code, add initial support to X509_print() and x509 application.
9643 *) Takes a deep breath and start addding X509 V3 extension support code. Add
9644 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
9645 stuff is currently isolated and isn't even compiled yet.
9648 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
9649 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
9650 Removed the versions check from X509 routines when loading extensions:
9651 this allows certain broken certificates that don't set the version
9652 properly to be processed.
9655 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
9656 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
9657 can still be regenerated with "make depend".
9660 *) Spelling mistake in C version of CAST-128.
9661 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
9663 *) Changes to the error generation code. The perl script err-code.pl
9664 now reads in the old error codes and retains the old numbers, only
9665 adding new ones if necessary. It also only changes the .err files if new
9666 codes are added. The makefiles have been modified to only insert errors
9667 when needed (to avoid needlessly modifying header files). This is done
9668 by only inserting errors if the .err file is newer than the auto generated
9669 C file. To rebuild all the error codes from scratch (the old behaviour)
9670 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
9671 or delete all the .err files.
9674 *) CAST-128 was incorrectly implemented for short keys. The C version has
9675 been fixed, but is untested. The assembler versions are also fixed, but
9676 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
9677 to regenerate it if needed.
9678 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
9679 Hagino <itojun@kame.net>]
9681 *) File was opened incorrectly in randfile.c.
9682 [Ulf Möller <ulf@fitug.de>]
9684 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
9685 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
9686 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
9687 al: it's just almost always a UTCTime. Note this patch adds new error
9688 codes so do a "make errors" if there are problems.
9691 *) Correct Linux 1 recognition in config.
9692 [Ulf Möller <ulf@fitug.de>]
9694 *) Remove pointless MD5 hash when using DSA keys in ca.
9695 [Anonymous <nobody@replay.com>]
9697 *) Generate an error if given an empty string as a cert directory. Also
9698 generate an error if handed NULL (previously returned 0 to indicate an
9699 error, but didn't set one).
9700 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
9702 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
9705 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
9706 parameters. This was causing a warning which killed off the Win32 compile.
9709 *) Remove C++ style comments from crypto/bn/bn_local.h.
9710 [Neil Costigan <neil.costigan@celocom.com>]
9712 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
9713 based on a text string, looking up short and long names and finally
9714 "dot" format. The "dot" format stuff didn't work. Added new function
9715 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
9716 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
9717 OID is not part of the table.
9720 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
9721 X509_LOOKUP_by_alias().
9724 *) Sort openssl functions by name.
9727 *) Get the gendsa program working (hopefully) and add it to app list. Remove
9728 encryption from sample DSA keys (in case anyone is interested the password
9732 *) Make _all_ *_free functions accept a NULL pointer.
9733 [Frans Heymans <fheymans@isaserver.be>]
9735 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
9737 [Anonymous <nobody@replay.com>]
9739 *) s_server should send the CAfile as acceptable CAs, not its own cert.
9740 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9742 *) Don't blow it for numeric -newkey arguments to apps/req.
9743 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
9745 *) Temp key "for export" tests were wrong in s3_srvr.c.
9746 [Anonymous <nobody@replay.com>]
9748 *) Add prototype for temp key callback functions
9749 SSL_CTX_set_tmp_{rsa,dh}_callback().
9752 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
9753 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
9756 *) X509_name_add_entry() freed the wrong thing after an error.
9757 [Arne Ansper <arne@ats.cyber.ee>]
9759 *) rsa_eay.c would attempt to free a NULL context.
9760 [Arne Ansper <arne@ats.cyber.ee>]
9762 *) BIO_s_socket() had a broken should_retry() on Windoze.
9763 [Arne Ansper <arne@ats.cyber.ee>]
9765 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
9766 [Arne Ansper <arne@ats.cyber.ee>]
9768 *) Make sure the already existing X509_STORE->depth variable is initialized
9769 in X509_STORE_new(), but document the fact that this variable is still
9770 unused in the certificate verification process.
9771 [Ralf S. Engelschall]
9773 *) Fix the various library and apps files to free up pkeys obtained from
9774 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
9777 *) Fix reference counting in X509_PUBKEY_get(). This makes
9778 demos/maurice/example2.c work, amongst others, probably.
9779 [Steve Henson and Ben Laurie]
9781 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
9782 `openssl' and second, the shortcut symlinks for the `openssl <command>'
9783 are no longer created. This way we have a single and consistent command
9784 line interface `openssl <command>', similar to `cvs <command>'.
9785 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
9787 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
9788 BIT STRING wrapper always have zero unused bits.
9791 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
9794 *) Make the top-level INSTALL documentation easier to understand.
9797 *) Makefiles updated to exit if an error occurs in a sub-directory
9798 make (including if user presses ^C) [Paul Sutton]
9800 *) Make Montgomery context stuff explicit in RSA data structure.
9803 *) Fix build order of pem and err to allow for generated pem.h.
9806 *) Fix renumbering bug in X509_NAME_delete_entry().
9809 *) Enhanced the err-ins.pl script so it makes the error library number
9810 global and can add a library name. This is needed for external ASN1 and
9811 other error libraries.
9814 *) Fixed sk_insert which never worked properly.
9817 *) Fix ASN1 macros so they can handle indefinite length construted
9818 EXPLICIT tags. Some non standard certificates use these: they can now
9822 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
9823 into a single doc/ssleay.txt bundle. This way the information is still
9824 preserved but no longer messes up this directory. Now it's new room for
9825 the new set of documenation files.
9826 [Ralf S. Engelschall]
9828 *) SETs were incorrectly DER encoded. This was a major pain, because they
9829 shared code with SEQUENCEs, which aren't coded the same. This means that
9830 almost everything to do with SETs or SEQUENCEs has either changed name or
9831 number of arguments.
9832 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
9834 *) Fix test data to work with the above.
9837 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
9838 was already fixed by Eric for 0.9.1 it seems.
9839 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
9841 *) Autodetect FreeBSD3.
9844 *) Fix various bugs in Configure. This affects the following platforms:
9848 unixware-2.0-pentium
9852 *) Eliminate generated files from CVS. Reorder tests to regenerate files
9853 before they are needed.
9856 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
9860 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
9862 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
9863 changed SSLeay to OpenSSL in version strings.
9864 [Ralf S. Engelschall]
9866 *) Some fixups to the top-level documents.
9869 *) Fixed the nasty bug where rsaref.h was not found under compile-time
9870 because the symlink to include/ was missing.
9871 [Ralf S. Engelschall]
9873 *) Incorporated the popular no-RSA/DSA-only patches
9874 which allow to compile a RSA-free SSLeay.
9875 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
9877 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
9878 when "ssleay" is still not found.
9879 [Ralf S. Engelschall]
9881 *) Added more platforms to Configure: Cray T3E, HPUX 11,
9882 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
9884 *) Updated the README file.
9885 [Ralf S. Engelschall]
9887 *) Added various .cvsignore files in the CVS repository subdirs
9888 to make a "cvs update" really silent.
9889 [Ralf S. Engelschall]
9891 *) Recompiled the error-definition header files and added
9892 missing symbols to the Win32 linker tables.
9893 [Ralf S. Engelschall]
9895 *) Cleaned up the top-level documents;
9896 o new files: CHANGES and LICENSE
9897 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
9898 o merged COPYRIGHT into LICENSE
9899 o removed obsolete TODO file
9900 o renamed MICROSOFT to INSTALL.W32
9901 [Ralf S. Engelschall]
9903 *) Removed dummy files from the 0.9.1b source tree:
9904 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
9905 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
9906 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
9907 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
9908 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
9909 [Ralf S. Engelschall]
9911 *) Added various platform portability fixes.
9914 *) The Genesis of the OpenSSL rpject:
9915 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
9916 Young and Tim J. Hudson created while they were working for C2Net until
9918 [The OpenSSL Project]
9921 Changes between 0.9.0b and 0.9.1b [not released]
9923 *) Updated a few CA certificates under certs/
9926 *) Changed some BIGNUM api stuff.
9929 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
9930 DGUX x86, Linux Alpha, etc.
9933 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
9934 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
9938 *) Add -strparse option to asn1pars program which parses nested
9940 [Dr Stephen Henson <shenson@bigfoot.com>]
9942 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
9945 *) DSA fix for "ca" program.
9948 *) Added "-genkey" option to "dsaparam" program.
9951 *) Added RIPE MD160 (rmd160) message digest.
9954 *) Added -a (all) option to "ssleay version" command.
9957 *) Added PLATFORM define which is the id given to Configure.
9960 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
9963 *) Extended the ASN.1 parser routines.
9966 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
9969 *) Added a BN_CTX to the BN library.
9972 *) Fixed the weak key values in DES library
9975 *) Changed API in EVP library for cipher aliases.
9978 *) Added support for RC2/64bit cipher.
9981 *) Converted the lhash library to the crypto/mem.c functions.
9984 *) Added more recognized ASN.1 object ids.
9987 *) Added more RSA padding checks for SSL/TLS.
9990 *) Added BIO proxy/filter functionality.
9993 *) Added extra_certs to SSL_CTX which can be used
9994 send extra CA certificates to the client in the CA cert chain sending
9995 process. It can be configured with SSL_CTX_add_extra_chain_cert().
9998 *) Now Fortezza is denied in the authentication phase because
9999 this is key exchange mechanism is not supported by SSLeay at all.
10002 *) Additional PKCS1 checks.
10005 *) Support the string "TLSv1" for all TLS v1 ciphers.
10008 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
10009 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
10012 *) Fixed a few memory leaks.
10015 *) Fixed various code and comment typos.
10018 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
10019 bytes sent in the client random.
10020 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob