5 Changes between 0.9.8a and 0.9.9 [xx XXX xxxx]
7 *) Initial support for pluggable public key ASN1.
8 De-spaghettify the public key ASN1 handling. Move public and private
9 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
10 algorithm specific handling to a single module within the relevant
11 algorithm directory. Add functions to allow (near) opaque processing
12 of public and private key structures.
15 *) Implement the Supported Point Formats Extension for
16 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
19 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
20 for the psk identity [hint] and the psk callback functions to the
21 SSL_SESSION, SSL and SSL_CTX structure.
24 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
28 SSL_CTX_use_psk_identity_hint
29 SSL_get_psk_identity_hint
31 SSL_use_psk_identity_hint
33 [Mika Kousa and Pasi Eronen of Nokia Corporation]
35 *) Add RFC 3161 compliant time stamp request creation, response generation
36 and response verification functionality.
37 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
39 *) Add initial support for TLS extensions, specifically for the server_name
40 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
41 have new members for a host name. The SSL data structure has an
42 additional member SSL_CTX *initial_ctx so that new sessions can be
43 stored in that context to allow for session resumption, even after the
44 SSL has been switched to a new SSL_CTX in reaction to a client's
45 server_name extension.
47 New functions (subject to change):
50 SSL_get_servername_type()
53 New CTRL codes and macros (subject to change):
55 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
56 - SSL_CTX_set_tlsext_servername_callback()
57 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
58 - SSL_CTX_set_tlsext_servername_arg()
59 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_hostname()
61 openssl s_client has a new '-servername ...' option.
63 openssl s_server has new options '-servername_host ...', '-cert2 ...',
64 '-key2 ...', '-servername_fatal' (subject to change). This allows
65 testing the HostName extension for a specific single host name ('-cert'
66 and '-key' remain fallbacks for handshakes without HostName
67 negotiation). If the unrecogninzed_name alert has to be sent, this by
68 default is a warning; it becomes fatal with the '-servername_fatal'
71 [Peter Sylvester, Remy Allais, Christophe Renou]
73 *) Whirlpool hash implementation is added.
76 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
77 bn(64,32). Because of instruction set limitations it doesn't have
78 any negative impact on performance. This was done mostly in order
79 to make it possible to share assembler modules, such as bn_mul_mont
80 implementations, between 32- and 64-bit builds without hassle.
83 *) Disable rogue ciphersuites:
85 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
86 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
87 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
89 The latter two were purportedly from
90 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
93 Other ciphersuites from draft-ietf-tls-56-bit-ciphersuites-01.txt
94 remain enabled for now, but are just as unofficial, and the ID
95 has long expired; these will probably disappear soon.
98 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
99 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
103 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
104 dedicated Montgomery multiplication procedure, is introduced.
105 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
106 "64-bit" performance on certain 32-bit targets.
109 *) New option SSL_OP_NO_COMP to disable use of compression selectively
110 in SSL structures. New SSL ctrl to set maximum send fragment size.
111 Save memory by seeting the I/O buffer sizes dynamically instead of
112 using the maximum available value.
115 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
116 in addition to the text details.
119 *) Very, very preliminary EXPERIMENTAL support for printing of general
120 ASN1 structures. This currently produces rather ugly output and doesn't
121 handle several customised structures at all.
124 *) Integrated support for PVK file format and some related formats such
125 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
126 these in the 'rsa' and 'dsa' utilities.
129 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
132 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
133 place for the (very old) "NETSCAPE" format certificates which are now
134 handled using new ASN1 code equivalents.
137 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
138 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
139 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
142 *) Modify CRL distribution points extension code to print out previously
143 unsupported fields. Enhance extension setting code to allow setting of
147 *) Add print and set support for Issuing Distribution Point CRL extension.
150 Changes between 0.9.8a and 0.9.8b [XX xxx XXXX]
152 *) Link in manifests for VC++ if needed.
153 [Austin Ziegler <halostatue@gmail.com>]
155 *) Update support for ECC-based TLS ciphersuites according to
156 draft-ietf-tls-ecc-12.txt with proposed changes (but without
157 TLS extensions, which are supported starting with the 0.9.9
158 branch, not in the OpenSSL 0.9.8 branch).
161 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
162 opaque EVP_CIPHER_CTX handling.
165 *) Fixes and enhancements to zlib compression code. We now only use
166 "zlib1.dll" and use the default __cdecl calling convention on Win32
167 to conform with the standards mentioned here:
168 http://www.zlib.net/DLL_FAQ.txt
169 Static zlib linking now works on Windows and the new --with-zlib-include
170 --with-zlib-lib options to Configure can be used to supply the location
171 of the headers and library. Gracefully handle case where zlib library
175 *) Several fixes and enhancements to the OID generation code. The old code
176 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
177 handle numbers larger than ULONG_MAX, truncated printing and had a
178 non standard OBJ_obj2txt() behaviour.
181 *) Add support for building of engines under engine/ as shared libraries
182 under VC++ build system.
185 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
186 Hopefully, we will not see any false combination of paths any more.
189 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
191 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
192 (part of SSL_OP_ALL). This option used to disable the
193 countermeasure against man-in-the-middle protocol-version
194 rollback in the SSL 2.0 server implementation, which is a bad
195 idea. (CVE-2005-2969)
197 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
198 for Information Security, National Institute of Advanced Industrial
199 Science and Technology [AIST], Japan)]
201 *) Add two function to clear and return the verify parameter flags.
204 *) Keep cipherlists sorted in the source instead of sorting them at
205 runtime, thus removing the need for a lock.
208 *) Avoid some small subgroup attacks in Diffie-Hellman.
209 [Nick Mathewson and Ben Laurie]
211 *) Add functions for well-known primes.
214 *) Extended Windows CE support.
215 [Satoshi Nakamura and Andy Polyakov]
217 *) Initialize SSL_METHOD structures at compile time instead of during
218 runtime, thus removing the need for a lock.
221 *) Make PKCS7_decrypt() work even if no certificate is supplied by
222 attempting to decrypt each encrypted key in turn. Add support to
226 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
228 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
231 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
232 key into the same file any more.
235 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
238 *) Add -utf8 command line and config file option to 'ca'.
239 [Stefan <stf@udoma.org]
241 *) Removed the macro des_crypt(), as it seems to conflict with some
242 libraries. Use DES_crypt().
245 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
246 involves renaming the source and generated shared-libs for
247 both. The engines will accept the corrected or legacy ids
248 ('ncipher' and '4758_cca' respectively) when binding. NB,
249 this only applies when building 'shared'.
250 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
252 *) Add attribute functions to EVP_PKEY structure. Modify
253 PKCS12_create() to recognize a CSP name attribute and
254 use it. Make -CSP option work again in pkcs12 utility.
257 *) Add new functionality to the bn blinding code:
258 - automatic re-creation of the BN_BLINDING parameters after
259 a fixed number of uses (currently 32)
260 - add new function for parameter creation
261 - introduce flags to control the update behaviour of the
262 BN_BLINDING parameters
263 - hide BN_BLINDING structure
264 Add a second BN_BLINDING slot to the RSA structure to improve
265 performance when a single RSA object is shared among several
269 *) Add support for DTLS.
270 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
272 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
273 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
276 *) Remove buggy and incompletet DH cert support from
277 ssl/ssl_rsa.c and ssl/s3_both.c
280 *) Use SHA-1 instead of MD5 as the default digest algorithm for
281 the apps/openssl applications.
284 *) Compile clean with "-Wall -Wmissing-prototypes
285 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
286 DEBUG_SAFESTACK must also be set.
289 *) Change ./Configure so that certain algorithms can be disabled by default.
290 The new counterpiece to "no-xxx" is "enable-xxx".
292 The patented RC5 and MDC2 algorithms will now be disabled unless
293 "enable-rc5" and "enable-mdc2", respectively, are specified.
295 (IDEA remains enabled despite being patented. This is because IDEA
296 is frequently required for interoperability, and there is no license
297 fee for non-commercial use. As before, "no-idea" can be used to
298 avoid this algorithm.)
302 *) Add processing of proxy certificates (see RFC 3820). This work was
303 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
304 EGEE (Enabling Grids for E-science in Europe).
307 *) RC4 performance overhaul on modern architectures/implementations, such
308 as Intel P4, IA-64 and AMD64.
311 *) New utility extract-section.pl. This can be used specify an alternative
312 section number in a pod file instead of having to treat each file as
313 a separate case in Makefile. This can be done by adding two lines to the
316 =for comment openssl_section:XXX
318 The blank line is mandatory.
322 *) New arguments -certform, -keyform and -pass for s_client and s_server
323 to allow alternative format key and certificate files and passphrase
327 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
328 update associated structures and add various utility functions.
330 Add new policy related verify parameters, include policy checking in
331 standard verify code. Enhance 'smime' application with extra parameters
332 to support policy checking and print out.
335 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
336 Nehemiah processors. These extensions support AES encryption in hardware
337 as well as RNG (though RNG support is currently disabled).
338 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
340 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
343 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
344 [Andy Polyakov and a number of other people]
346 *) Improved PowerPC platform support. Most notably BIGNUM assembler
347 implementation contributed by IBM.
348 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
350 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
351 exponent rather than 'unsigned long'. There is a corresponding change to
352 the new 'rsa_keygen' element of the RSA_METHOD structure.
353 [Jelte Jansen, Geoff Thorpe]
355 *) Functionality for creating the initial serial number file is now
356 moved from CA.pl to the 'ca' utility with a new option -create_serial.
358 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
359 number file to 1, which is bound to cause problems. To avoid
360 the problems while respecting compatibility between different 0.9.7
361 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
362 CA.pl for serial number initialization. With the new release 0.9.8,
363 we can fix the problem directly in the 'ca' utility.)
366 *) Reduced header interdepencies by declaring more opaque objects in
367 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
368 give fewer recursive includes, which could break lazy source code - so
369 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
370 developers should define this symbol when building and using openssl to
371 ensure they track the recommended behaviour, interfaces, [etc], but
372 backwards-compatible behaviour prevails when this isn't defined.
375 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
378 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
379 This will generate a random key of the appropriate length based on the
380 cipher context. The EVP_CIPHER can provide its own random key generation
381 routine to support keys of a specific form. This is used in the des and
382 3des routines to generate a key of the correct parity. Update S/MIME
383 code to use new functions and hence generate correct parity DES keys.
384 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
385 valid (weak or incorrect parity).
388 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
389 as looking them up. This is useful when the verified structure may contain
390 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
391 present unless the new PKCS7_NO_CRL flag is asserted.
394 *) Extend ASN1 oid configuration module. It now additionally accepts the
397 shortName = some long name, 1.2.3.4
400 *) Reimplemented the BN_CTX implementation. There is now no more static
401 limitation on the number of variables it can handle nor the depth of the
402 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
403 information can now expand as required, and rather than having a single
404 static array of bignums, BN_CTX now uses a linked-list of such arrays
405 allowing it to expand on demand whilst maintaining the usefulness of
409 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
410 to allow all RSA operations to function using a single BN_CTX.
413 *) Preliminary support for certificate policy evaluation and checking. This
414 is initially intended to pass the tests outlined in "Conformance Testing
415 of Relying Party Client Certificate Path Processing Logic" v1.07.
418 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
419 remained unused and not that useful. A variety of other little bignum
420 tweaks and fixes have also been made continuing on from the audit (see
424 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
425 associated ASN1, EVP and SSL functions and old ASN1 macros.
428 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
429 and this should never fail. So the return value from the use of
430 BN_set_word() (which can fail due to needless expansion) is now deprecated;
431 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
434 *) BN_CTX_get() should return zero-valued bignums, providing the same
435 initialised value as BN_new().
436 [Geoff Thorpe, suggested by Ulf Möller]
438 *) Support for inhibitAnyPolicy certificate extension.
441 *) An audit of the BIGNUM code is underway, for which debugging code is
442 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
443 is considered valid when processing BIGNUMs, and causes execution to
444 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
445 further steps are taken to deliberately pollute unused data in BIGNUM
446 structures to try and expose faulty code further on. For now, openssl will
447 (in its default mode of operation) continue to tolerate the inconsistent
448 forms that it has tolerated in the past, but authors and packagers should
449 consider trying openssl and their own applications when compiled with
450 these debugging symbols defined. It will help highlight potential bugs in
451 their own code, and will improve the test coverage for OpenSSL itself. At
452 some point, these tighter rules will become openssl's default to improve
453 maintainability, though the assert()s and other overheads will remain only
454 in debugging configurations. See bn.h for more details.
455 [Geoff Thorpe, Nils Larsch, Ulf Möller]
457 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
458 that can only be obtained through BN_CTX_new() (which implicitly
459 initialises it). The presence of this function only made it possible
460 to overwrite an existing structure (and cause memory leaks).
463 *) Because of the callback-based approach for implementing LHASH as a
464 template type, lh_insert() adds opaque objects to hash-tables and
465 lh_doall() or lh_doall_arg() are typically used with a destructor callback
466 to clean up those corresponding objects before destroying the hash table
467 (and losing the object pointers). So some over-zealous constifications in
468 LHASH have been relaxed so that lh_insert() does not take (nor store) the
469 objects as "const" and the lh_doall[_arg] callback wrappers are not
470 prototyped to have "const" restrictions on the object pointers they are
471 given (and so aren't required to cast them away any more).
474 *) The tmdiff.h API was so ugly and minimal that our own timing utility
475 (speed) prefers to use its own implementation. The two implementations
476 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
477 its object type properly exposed (MS_TM) instead of casting to/from "char
478 *". This may still change yet if someone realises MS_TM and "ms_time_***"
479 aren't necessarily the greatest nomenclatures - but this is what was used
480 internally to the implementation so I've used that for now.
483 *) Ensure that deprecated functions do not get compiled when
484 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
485 the self-tests were still using deprecated key-generation functions so
486 these have been updated also.
489 *) Reorganise PKCS#7 code to separate the digest location functionality
490 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
491 New function PKCS7_set_digest() to set the digest type for PKCS#7
492 digestedData type. Add additional code to correctly generate the
493 digestedData type and add support for this type in PKCS7 initialization
497 *) New function PKCS7_set0_type_other() this initializes a PKCS7
498 structure of type "other".
501 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
502 sure the loop does correctly stop and breaking ("division by zero")
503 modulus operations are not performed. The (pre-generated) prime
504 table crypto/bn/bn_prime.h was already correct, but it could not be
505 re-generated on some platforms because of the "division by zero"
506 situation in the script.
507 [Ralf S. Engelschall]
509 *) Update support for ECC-based TLS ciphersuites according to
510 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
511 SHA-1 now is only used for "small" curves (where the
512 representation of a field element takes up to 24 bytes); for
513 larger curves, the field element resulting from ECDH is directly
514 used as premaster secret.
515 [Douglas Stebila (Sun Microsystems Laboratories)]
517 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
518 curve secp160r1 to the tests.
519 [Douglas Stebila (Sun Microsystems Laboratories)]
521 *) Add the possibility to load symbols globally with DSO.
522 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
524 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
525 control of the error stack.
528 *) Add support for STORE in ENGINE.
531 *) Add the STORE type. The intention is to provide a common interface
532 to certificate and key stores, be they simple file-based stores, or
533 HSM-type store, or LDAP stores, or...
534 NOTE: The code is currently UNTESTED and isn't really used anywhere.
537 *) Add a generic structure called OPENSSL_ITEM. This can be used to
538 pass a list of arguments to any function as well as provide a way
539 for a function to pass data back to the caller.
542 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
543 works like BUF_strdup() but can be used to duplicate a portion of
544 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
548 *) Add the function sk_find_ex() which works like sk_find(), but will
549 return an index to an element even if an exact match couldn't be
550 found. The index is guaranteed to point at the element where the
551 searched-for key would be inserted to preserve sorting order.
554 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
555 takes an extra flags argument for optional functionality. Currently,
556 the following flags are defined:
558 OBJ_BSEARCH_VALUE_ON_NOMATCH
559 This one gets OBJ_bsearch_ex() to return a pointer to the first
560 element where the comparing function returns a negative or zero
563 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
564 This one gets OBJ_bsearch_ex() to return a pointer to the first
565 element where the comparing function returns zero. This is useful
566 if there are more than one element where the comparing function
570 *) Make it possible to create self-signed certificates with 'openssl ca'
571 in such a way that the self-signed certificate becomes part of the
572 CA database and uses the same mechanisms for serial number generation
573 as all other certificate signing. The new flag '-selfsign' enables
574 this functionality. Adapt CA.sh and CA.pl.in.
577 *) Add functionality to check the public key of a certificate request
578 against a given private. This is useful to check that a certificate
579 request can be signed by that key (self-signing).
582 *) Make it possible to have multiple active certificates with the same
583 subject in the CA index file. This is done only if the keyword
584 'unique_subject' is set to 'no' in the main CA section (default
585 if 'CA_default') of the configuration file. The value is saved
586 with the database itself in a separate index attribute file,
587 named like the index file with '.attr' appended to the name.
590 *) Generate muti valued AVAs using '+' notation in config files for
594 *) Support for nameConstraints certificate extension.
597 *) Support for policyConstraints certificate extension.
600 *) Support for policyMappings certificate extension.
603 *) Make sure the default DSA_METHOD implementation only uses its
604 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
605 and change its own handlers to be NULL so as to remove unnecessary
606 indirection. This lets alternative implementations fallback to the
607 default implementation more easily.
610 *) Support for directoryName in GeneralName related extensions
614 *) Make it possible to link applications using Makefile.shared.
615 Make that possible even when linking against static libraries!
618 *) Support for single pass processing for S/MIME signing. This now
619 means that S/MIME signing can be done from a pipe, in addition
620 cleartext signing (multipart/signed type) is effectively streaming
621 and the signed data does not need to be all held in memory.
623 This is done with a new flag PKCS7_STREAM. When this flag is set
624 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
625 is done after the data is output (and digests calculated) in
629 *) Add full support for -rpath/-R, both in shared libraries and
630 applications, at least on the platforms where it's known how
634 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
635 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
636 will now compute a table of multiples of the generator that
637 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
638 faster (notably in the case of a single point multiplication,
640 [Nils Larsch, Bodo Moeller]
642 *) IPv6 support for certificate extensions. The various extensions
643 which use the IP:a.b.c.d can now take IPv6 addresses using the
644 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
648 *) Added an ENGINE that implements RSA by performing private key
649 exponentiations with the GMP library. The conversions to and from
650 GMP's mpz_t format aren't optimised nor are any montgomery forms
651 cached, and on x86 it appears OpenSSL's own performance has caught up.
652 However there are likely to be other architectures where GMP could
653 provide a boost. This ENGINE is not built in by default, but it can be
654 specified at Configure time and should be accompanied by the necessary
655 linker additions, eg;
656 ./config -DOPENSSL_USE_GMP -lgmp
659 *) "openssl engine" will not display ENGINE/DSO load failure errors when
660 testing availability of engines with "-t" - the old behaviour is
661 produced by increasing the feature's verbosity with "-tt".
664 *) ECDSA routines: under certain error conditions uninitialized BN objects
665 could be freed. Solution: make sure initialization is performed early
666 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
670 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
671 and DH_METHOD (eg. by ENGINE implementations) to override the normal
672 software implementations. For DSA and DH, parameter generation can
673 also be overriden by providing the appropriate method callbacks.
676 *) Change the "progress" mechanism used in key-generation and
677 primality testing to functions that take a new BN_GENCB pointer in
678 place of callback/argument pairs. The new API functions have "_ex"
679 postfixes and the older functions are reimplemented as wrappers for
680 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
681 declarations of the old functions to help (graceful) attempts to
682 migrate to the new functions. Also, the new key-generation API
683 functions operate on a caller-supplied key-structure and return
684 success/failure rather than returning a key or NULL - this is to
685 help make "keygen" another member function of RSA_METHOD etc.
687 Example for using the new callback interface:
689 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
693 BN_GENCB_set(&my_cb, my_callback, my_arg);
695 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
696 /* For the meaning of a, b in calls to my_callback(), see the
697 * documentation of the function that calls the callback.
698 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
699 * my_callback should return 1 if it wants BN_is_prime_ex()
700 * to continue, or 0 to stop.
705 *) Change the ZLIB compression method to be stateful, and make it
706 available to TLS with the number defined in
707 draft-ietf-tls-compression-04.txt.
710 *) Add the ASN.1 structures and functions for CertificatePair, which
711 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
713 CertificatePair ::= SEQUENCE {
714 forward [0] Certificate OPTIONAL,
715 reverse [1] Certificate OPTIONAL,
716 -- at least one of the pair shall be present -- }
718 Also implement the PEM functions to read and write certificate
719 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
721 This needed to be defined, mostly for the sake of the LDAP
722 attribute crossCertificatePair, but may prove useful elsewhere as
726 *) Make it possible to inhibit symlinking of shared libraries in
727 Makefile.shared, for Cygwin's sake.
730 *) Extend the BIGNUM API by creating a function
731 void BN_set_negative(BIGNUM *a, int neg);
732 and a macro that behave like
733 int BN_is_negative(const BIGNUM *a);
735 to avoid the need to access 'a->neg' directly in applications.
738 *) Implement fast modular reduction for pseudo-Mersenne primes
739 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
740 EC_GROUP_new_curve_GFp() will now automatically use this
742 [Nils Larsch <nla@trustcenter.de>]
744 *) Add new lock type (CRYPTO_LOCK_BN).
747 *) Change the ENGINE framework to automatically load engines
748 dynamically from specific directories unless they could be
749 found to already be built in or loaded. Move all the
750 current engines except for the cryptodev one to a new
752 The engines in engines/ are built as shared libraries if
753 the "shared" options was given to ./Configure or ./config.
754 Otherwise, they are inserted in libcrypto.a.
755 /usr/local/ssl/engines is the default directory for dynamic
756 engines, but that can be overriden at configure time through
757 the usual use of --prefix and/or --openssldir, and at run
758 time with the environment variable OPENSSL_ENGINES.
759 [Geoff Thorpe and Richard Levitte]
761 *) Add Makefile.shared, a helper makefile to build shared
762 libraries. Addapt Makefile.org.
765 *) Add version info to Win32 DLLs.
766 [Peter 'Luna' Runestig" <peter@runestig.com>]
768 *) Add new 'medium level' PKCS#12 API. Certificates and keys
769 can be added using this API to created arbitrary PKCS#12
770 files while avoiding the low level API.
772 New options to PKCS12_create(), key or cert can be NULL and
773 will then be omitted from the output file. The encryption
774 algorithm NIDs can be set to -1 for no encryption, the mac
775 iteration count can be set to 0 to omit the mac.
777 Enhance pkcs12 utility by making the -nokeys and -nocerts
778 options work when creating a PKCS#12 file. New option -nomac
779 to omit the mac, NONE can be set for an encryption algorithm.
780 New code is modified to use the enhanced PKCS12_create()
781 instead of the low level API.
784 *) Extend ASN1 encoder to support indefinite length constructed
785 encoding. This can output sequences tags and octet strings in
786 this form. Modify pk7_asn1.c to support indefinite length
787 encoding. This is experimental and needs additional code to
788 be useful, such as an ASN1 bio and some enhanced streaming
791 Extend template encode functionality so that tagging is passed
792 down to the template encoder.
795 *) Let 'openssl req' fail if an argument to '-newkey' is not
796 recognized instead of using RSA as a default.
799 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
800 As these are not official, they are not included in "ALL";
801 the "ECCdraft" ciphersuite group alias can be used to select them.
802 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
804 *) Add ECDH engine support.
805 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
807 *) Add ECDH in new directory crypto/ecdh/.
808 [Douglas Stebila (Sun Microsystems Laboratories)]
810 *) Let BN_rand_range() abort with an error after 100 iterations
811 without success (which indicates a broken PRNG).
814 *) Change BN_mod_sqrt() so that it verifies that the input value
815 is really the square of the return value. (Previously,
816 BN_mod_sqrt would show GIGO behaviour.)
819 *) Add named elliptic curves over binary fields from X9.62, SECG,
820 and WAP/WTLS; add OIDs that were still missing.
822 [Sheueling Chang Shantz and Douglas Stebila
823 (Sun Microsystems Laboratories)]
825 *) Extend the EC library for elliptic curves over binary fields
826 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
829 EC_GF2m_simple_method
833 EC_GROUP_new_curve_GF2m
834 EC_GROUP_set_curve_GF2m
835 EC_GROUP_get_curve_GF2m
836 EC_POINT_set_affine_coordinates_GF2m
837 EC_POINT_get_affine_coordinates_GF2m
838 EC_POINT_set_compressed_coordinates_GF2m
840 Point compression for binary fields is disabled by default for
841 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
844 As binary polynomials are represented as BIGNUMs, various members
845 of the EC_GROUP and EC_POINT data structures can be shared
846 between the implementations for prime fields and binary fields;
847 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
848 are essentially identical to their ..._GFp counterparts.
849 (For simplicity, the '..._GFp' prefix has been dropped from
850 various internal method names.)
852 An internal 'field_div' method (similar to 'field_mul' and
853 'field_sqr') has been added; this is used only for binary fields.
855 [Sheueling Chang Shantz and Douglas Stebila
856 (Sun Microsystems Laboratories)]
858 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
859 through methods ('mul', 'precompute_mult').
861 The generic implementations (now internally called 'ec_wNAF_mul'
862 and 'ec_wNAF_precomputed_mult') remain the default if these
863 methods are undefined.
865 [Sheueling Chang Shantz and Douglas Stebila
866 (Sun Microsystems Laboratories)]
868 *) New function EC_GROUP_get_degree, which is defined through
869 EC_METHOD. For curves over prime fields, this returns the bit
870 length of the modulus.
872 [Sheueling Chang Shantz and Douglas Stebila
873 (Sun Microsystems Laboratories)]
875 *) New functions EC_GROUP_dup, EC_POINT_dup.
876 (These simply call ..._new and ..._copy).
878 [Sheueling Chang Shantz and Douglas Stebila
879 (Sun Microsystems Laboratories)]
881 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
882 Polynomials are represented as BIGNUMs (where the sign bit is not
883 used) in the following functions [macros]:
886 BN_GF2m_sub [= BN_GF2m_add]
887 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
888 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
889 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
891 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
892 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
893 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
894 BN_GF2m_cmp [= BN_ucmp]
896 (Note that only the 'mod' functions are actually for fields GF(2^m).
897 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
899 For some functions, an the irreducible polynomial defining a
900 field can be given as an 'unsigned int[]' with strictly
901 decreasing elements giving the indices of those bits that are set;
902 i.e., p[] represents the polynomial
903 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
905 p[0] > p[1] > ... > p[k] = 0.
906 This applies to the following functions:
911 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
912 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
915 BN_GF2m_mod_solve_quad_arr
919 Conversion can be performed by the following functions:
924 bntest.c has additional tests for binary polynomial arithmetic.
926 Two implementations for BN_GF2m_mod_div() are available.
927 The default algorithm simply uses BN_GF2m_mod_inv() and
928 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
929 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
930 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
932 [Sheueling Chang Shantz and Douglas Stebila
933 (Sun Microsystems Laboratories)]
935 *) Add new error code 'ERR_R_DISABLED' that can be used when some
936 functionality is disabled at compile-time.
937 [Douglas Stebila <douglas.stebila@sun.com>]
939 *) Change default behaviour of 'openssl asn1parse' so that more
940 information is visible when viewing, e.g., a certificate:
942 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
943 mode the content of non-printable OCTET STRINGs is output in a
944 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
945 avoid the appearance of a printable string.
946 [Nils Larsch <nla@trustcenter.de>]
948 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
950 EC_GROUP_set_asn1_flag()
951 EC_GROUP_get_asn1_flag()
952 EC_GROUP_set_point_conversion_form()
953 EC_GROUP_get_point_conversion_form()
954 These control ASN1 encoding details:
955 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
956 has been set to OPENSSL_EC_NAMED_CURVE.
957 - Points are encoded in uncompressed form by default; options for
958 asn1_for are as for point2oct, namely
959 POINT_CONVERSION_COMPRESSED
960 POINT_CONVERSION_UNCOMPRESSED
961 POINT_CONVERSION_HYBRID
963 Also add 'seed' and 'seed_len' members to EC_GROUP with access
967 EC_GROUP_get_seed_len()
968 This is used only for ASN1 purposes (so far).
969 [Nils Larsch <nla@trustcenter.de>]
971 *) Add 'field_type' member to EC_METHOD, which holds the NID
972 of the appropriate field type OID. The new function
973 EC_METHOD_get_field_type() returns this value.
974 [Nils Larsch <nla@trustcenter.de>]
981 providing useful interfaces to EC_POINT_point2oct() and
982 EC_POINT_oct2point().
983 [Nils Larsch <nla@trustcenter.de>]
985 *) Change internals of the EC library so that the functions
986 EC_GROUP_set_generator()
987 EC_GROUP_get_generator()
989 EC_GROUP_get_cofactor()
990 are implemented directly in crypto/ec/ec_lib.c and not dispatched
991 to methods, which would lead to unnecessary code duplication when
992 adding different types of curves.
993 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
995 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
996 arithmetic, and such that modified wNAFs are generated
997 (which avoid length expansion in many cases).
1000 *) Add a function EC_GROUP_check_discriminant() (defined via
1001 EC_METHOD) that verifies that the curve discriminant is non-zero.
1003 Add a function EC_GROUP_check() that makes some sanity tests
1004 on a EC_GROUP, its generator and order. This includes
1005 EC_GROUP_check_discriminant().
1006 [Nils Larsch <nla@trustcenter.de>]
1008 *) Add ECDSA in new directory crypto/ecdsa/.
1010 Add applications 'openssl ecparam' and 'openssl ecdsa'
1011 (these are based on 'openssl dsaparam' and 'openssl dsa').
1013 ECDSA support is also included in various other files across the
1014 library. Most notably,
1015 - 'openssl req' now has a '-newkey ecdsa:file' option;
1016 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1017 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1018 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1019 them suitable for ECDSA where domain parameters must be
1020 extracted before the specific public key;
1021 - ECDSA engine support has been added.
1022 [Nils Larsch <nla@trustcenter.de>]
1024 *) Include some named elliptic curves, and add OIDs from X9.62,
1025 SECG, and WAP/WTLS. Each curve can be obtained from the new
1027 EC_GROUP_new_by_curve_name(),
1028 and the list of available named curves can be obtained with
1029 EC_get_builtin_curves().
1030 Also add a 'curve_name' member to EC_GROUP objects, which can be
1032 EC_GROUP_set_curve_name()
1033 EC_GROUP_get_curve_name()
1034 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1036 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1037 was actually never needed) and in BN_mul(). The removal in BN_mul()
1038 required a small change in bn_mul_part_recursive() and the addition
1039 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1040 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1041 bn_sub_words() and bn_add_words() except they take arrays with
1045 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1047 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1048 The value now differs depending on if you build for FIPS or not.
1049 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1050 safely run with a non-FIPSed libcrypto, as it may crash because of
1051 the difference induced by this change.
1054 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1056 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1057 (part of SSL_OP_ALL). This option used to disable the
1058 countermeasure against man-in-the-middle protocol-version
1059 rollback in the SSL 2.0 server implementation, which is a bad
1060 idea. (CVE-2005-2969)
1062 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1063 for Information Security, National Institute of Advanced Industrial
1064 Science and Technology [AIST], Japan)]
1066 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1067 mainly for FIPS compliance and not fully integrated at this stage.
1070 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1071 the exponentiation using a fixed-length exponent. (Otherwise,
1072 the information leaked through timing could expose the secret key
1073 after many signatures; cf. Bleichenbacher's attack on DSA with
1077 *) Make a new fixed-window mod_exp implementation the default for
1078 RSA, DSA, and DH private-key operations so that the sequence of
1079 squares and multiplies and the memory access pattern are
1080 independent of the particular secret key. This will mitigate
1081 cache-timing and potential related attacks.
1083 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1084 and this is automatically used by BN_mod_exp_mont() if the new flag
1085 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1086 will use this BN flag for private exponents unless the flag
1087 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1088 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1090 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1092 *) Change the client implementation for SSLv23_method() and
1093 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1094 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1095 (Previously, the SSL 2.0 backwards compatible Client Hello
1096 message format would be used even with SSL_OP_NO_SSLv2.)
1099 *) Add support for smime-type MIME parameter in S/MIME messages which some
1103 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1104 a threadsafe manner. Modify rsa code to use new function and add calls
1105 to dsa and dh code (which had race conditions before).
1108 *) Include the fixed error library code in the C error file definitions
1109 instead of fixing them up at runtime. This keeps the error code
1110 structures constant.
1113 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1115 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1118 *) Fixes for newer kerberos headers. NB: the casts are needed because
1119 the 'length' field is signed on one version and unsigned on another
1120 with no (?) obvious way to tell the difference, without these VC++
1121 complains. Also the "definition" of FAR (blank) is no longer included
1122 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1123 some needed definitions.
1126 *) Undo Cygwin change.
1129 *) Added support for proxy certificates according to RFC 3820.
1130 Because they may be a security thread to unaware applications,
1131 they must be explicitely allowed in run-time. See
1132 docs/HOWTO/proxy_certificates.txt for further information.
1135 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1137 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1138 server and client random values. Previously
1139 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1140 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1142 This change has negligible security impact because:
1144 1. Server and client random values still have 24 bytes of pseudo random
1147 2. Server and client random values are sent in the clear in the initial
1150 3. The master secret is derived using the premaster secret (48 bytes in
1151 size for static RSA ciphersuites) as well as client server and random
1154 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1157 [Stephen Henson, reported by UK NISCC]
1159 *) Use Windows randomness collection on Cygwin.
1162 *) Fix hang in EGD/PRNGD query when communication socket is closed
1163 prematurely by EGD/PRNGD.
1164 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1166 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1169 *) Back-port of selected performance improvements from development
1170 branch, as well as improved support for PowerPC platforms.
1173 *) Add lots of checks for memory allocation failure, error codes to indicate
1174 failure and freeing up memory if a failure occurs.
1175 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1177 *) Add new -passin argument to dgst.
1180 *) Perform some character comparisons of different types in X509_NAME_cmp:
1181 this is needed for some certificates that reencode DNs into UTF8Strings
1182 (in violation of RFC3280) and can't or wont issue name rollover
1186 *) Make an explicit check during certificate validation to see that
1187 the CA setting in each certificate on the chain is correct. As a
1188 side effect always do the following basic checks on extensions,
1189 not just when there's an associated purpose to the check:
1191 - if there is an unhandled critical extension (unless the user
1192 has chosen to ignore this fault)
1193 - if the path length has been exceeded (if one is set at all)
1194 - that certain extensions fit the associated purpose (if one has
1198 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1200 *) Avoid a race condition when CRLs are checked in a multi threaded
1201 environment. This would happen due to the reordering of the revoked
1202 entries during signature checking and serial number lookup. Now the
1203 encoding is cached and the serial number sort performed under a lock.
1204 Add new STACK function sk_is_sorted().
1207 *) Add Delta CRL to the extension code.
1210 *) Various fixes to s3_pkt.c so alerts are sent properly.
1211 [David Holmes <d.holmes@f5.com>]
1213 *) Reduce the chances of duplicate issuer name and serial numbers (in
1214 violation of RFC3280) using the OpenSSL certificate creation utilities.
1215 This is done by creating a random 64 bit value for the initial serial
1216 number when a serial number file is created or when a self signed
1217 certificate is created using 'openssl req -x509'. The initial serial
1218 number file is created using 'openssl x509 -next_serial' in CA.pl
1219 rather than being initialized to 1.
1222 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1224 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1225 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1226 [Joe Orton, Steve Henson]
1228 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1230 [Joe Orton, Steve Henson]
1232 *) Make it possible to have multiple active certificates with the same
1233 subject in the CA index file. This is done only if the keyword
1234 'unique_subject' is set to 'no' in the main CA section (default
1235 if 'CA_default') of the configuration file. The value is saved
1236 with the database itself in a separate index attribute file,
1237 named like the index file with '.attr' appended to the name.
1240 *) X509 verify fixes. Disable broken certificate workarounds when
1241 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1242 keyUsage extension present. Don't accept CRLs with unhandled critical
1243 extensions: since verify currently doesn't process CRL extensions this
1244 rejects a CRL with *any* critical extensions. Add new verify error codes
1248 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1249 A clarification of RFC2560 will require the use of OCTET STRINGs and
1250 some implementations cannot handle the current raw format. Since OpenSSL
1251 copies and compares OCSP nonces as opaque blobs without any attempt at
1252 parsing them this should not create any compatibility issues.
1255 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1256 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1257 this HMAC (and other) operations are several times slower than OpenSSL
1261 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1262 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1264 *) Use the correct content when signing type "other".
1267 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1269 *) Fix various bugs revealed by running the NISCC test suite:
1271 Stop out of bounds reads in the ASN1 code when presented with
1272 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1274 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1276 If verify callback ignores invalid public key errors don't try to check
1277 certificate signature with the NULL public key.
1281 *) New -ignore_err option in ocsp application to stop the server
1282 exiting on the first error in a request.
1285 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1286 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1290 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1291 extra data after the compression methods not only for TLS 1.0
1292 but also for SSL 3.0 (as required by the specification).
1293 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1295 *) Change X509_certificate_type() to mark the key as exported/exportable
1296 when it's 512 *bits* long, not 512 bytes.
1299 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1300 blocks during encryption.
1303 *) Various fixes to base64 BIO and non blocking I/O. On write
1304 flushes were not handled properly if the BIO retried. On read
1305 data was not being buffered properly and had various logic bugs.
1306 This also affects blocking I/O when the data being decoded is a
1310 *) Various S/MIME bugfixes and compatibility changes:
1311 output correct application/pkcs7 MIME type if
1312 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1313 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1314 of files as .eml work). Correctly handle very long lines in MIME
1318 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1320 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1321 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1322 a protocol version number mismatch like a decryption error
1323 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1326 *) Turn on RSA blinding by default in the default implementation
1327 to avoid a timing attack. Applications that don't want it can call
1328 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1329 They would be ill-advised to do so in most cases.
1330 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1332 *) Change RSA blinding code so that it works when the PRNG is not
1333 seeded (in this case, the secret RSA exponent is abused as
1334 an unpredictable seed -- if it is not unpredictable, there
1335 is no point in blinding anyway). Make RSA blinding thread-safe
1336 by remembering the creator's thread ID in rsa->blinding and
1337 having all other threads use local one-time blinding factors
1338 (this requires more computation than sharing rsa->blinding, but
1339 avoids excessive locking; and if an RSA object is not shared
1340 between threads, blinding will still be very fast).
1343 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1344 ENGINE as defaults for all supported algorithms irrespective of
1345 the 'flags' parameter. 'flags' is now honoured, so applications
1346 should make sure they are passing it correctly.
1349 *) Target "mingw" now allows native Windows code to be generated in
1350 the Cygwin environment as well as with the MinGW compiler.
1353 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1355 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1356 via timing by performing a MAC computation even if incorrrect
1357 block cipher padding has been found. This is a countermeasure
1358 against active attacks where the attacker has to distinguish
1359 between bad padding and a MAC verification error. (CVE-2003-0078)
1361 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1362 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1363 Martin Vuagnoux (EPFL, Ilion)]
1365 *) Make the no-err option work as intended. The intention with no-err
1366 is not to have the whole error stack handling routines removed from
1367 libcrypto, it's only intended to remove all the function name and
1368 reason texts, thereby removing some of the footprint that may not
1369 be interesting if those errors aren't displayed anyway.
1371 NOTE: it's still possible for any application or module to have it's
1372 own set of error texts inserted. The routines are there, just not
1373 used by default when no-err is given.
1376 *) Add support for FreeBSD on IA64.
1377 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1379 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1380 Kerberos function mit_des_cbc_cksum(). Before this change,
1381 the value returned by DES_cbc_cksum() was like the one from
1382 mit_des_cbc_cksum(), except the bytes were swapped.
1383 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1385 *) Allow an application to disable the automatic SSL chain building.
1386 Before this a rather primitive chain build was always performed in
1387 ssl3_output_cert_chain(): an application had no way to send the
1388 correct chain if the automatic operation produced an incorrect result.
1390 Now the chain builder is disabled if either:
1392 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1394 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1396 The reasoning behind this is that an application would not want the
1397 auto chain building to take place if extra chain certificates are
1398 present and it might also want a means of sending no additional
1399 certificates (for example the chain has two certificates and the
1403 *) Add the possibility to build without the ENGINE framework.
1404 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1406 *) Under Win32 gmtime() can return NULL: check return value in
1407 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1410 *) DSA routines: under certain error conditions uninitialized BN objects
1411 could be freed. Solution: make sure initialization is performed early
1412 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1413 Nils Larsch <nla@trustcenter.de> via PR#459)
1416 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1417 checked on reconnect on the client side, therefore session resumption
1418 could still fail with a "ssl session id is different" error. This
1419 behaviour is masked when SSL_OP_ALL is used due to
1420 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1421 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1422 followup to PR #377.
1425 *) IA-32 assembler support enhancements: unified ELF targets, support
1426 for SCO/Caldera platforms, fix for Cygwin shared build.
1429 *) Add support for FreeBSD on sparc64. As a consequence, support for
1430 FreeBSD on non-x86 processors is separate from x86 processors on
1431 the config script, much like the NetBSD support.
1432 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1434 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1436 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1439 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1440 code (06) was taken as the first octet of the session ID and the last
1441 octet was ignored consequently. As a result SSLv2 client side session
1442 caching could not have worked due to the session ID mismatch between
1444 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1448 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1449 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1453 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1454 seems that in spite of existing for more than a year, many application
1455 author have done nothing to provide the necessary callbacks, which
1456 means that this particular engine will not work properly anywhere.
1457 This is a very unfortunate situation which forces us, in the name
1458 of usability, to give the hw_ncipher.c a static lock, which is part
1460 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1461 appear in 0.9.8 or later. We EXPECT application authors to have
1462 dealt properly with this when 0.9.8 is released (unless we actually
1463 make such changes in the libcrypto locking code that changes will
1464 have to be made anyway).
1467 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1468 octets have been read, EOF or an error occurs. Without this change
1469 some truncated ASN1 structures will not produce an error.
1472 *) Disable Heimdal support, since it hasn't been fully implemented.
1473 Still give the possibility to force the use of Heimdal, but with
1474 warnings and a request that patches get sent to openssl-dev.
1477 *) Add the VC-CE target, introduce the WINCE sysname, and add
1478 INSTALL.WCE and appropriate conditionals to make it build.
1479 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1481 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1482 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1483 edit numbers of the version.
1484 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1486 *) Introduce safe string copy and catenation functions
1487 (BUF_strlcpy() and BUF_strlcat()).
1488 [Ben Laurie (CHATS) and Richard Levitte]
1490 *) Avoid using fixed-size buffers for one-line DNs.
1491 [Ben Laurie (CHATS)]
1493 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1494 resizing buffers containing secrets, and use where appropriate.
1495 [Ben Laurie (CHATS)]
1497 *) Avoid using fixed size buffers for configuration file location.
1498 [Ben Laurie (CHATS)]
1500 *) Avoid filename truncation for various CA files.
1501 [Ben Laurie (CHATS)]
1503 *) Use sizeof in preference to magic numbers.
1504 [Ben Laurie (CHATS)]
1506 *) Avoid filename truncation in cert requests.
1507 [Ben Laurie (CHATS)]
1509 *) Add assertions to check for (supposedly impossible) buffer
1511 [Ben Laurie (CHATS)]
1513 *) Don't cache truncated DNS entries in the local cache (this could
1514 potentially lead to a spoofing attack).
1515 [Ben Laurie (CHATS)]
1517 *) Fix various buffers to be large enough for hex/decimal
1518 representations in a platform independent manner.
1519 [Ben Laurie (CHATS)]
1521 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1522 resizing buffers containing secrets, and use where appropriate.
1523 [Ben Laurie (CHATS)]
1525 *) Add BIO_indent() to avoid much slightly worrying code to do
1527 [Ben Laurie (CHATS)]
1529 *) Convert sprintf()/BIO_puts() to BIO_printf().
1530 [Ben Laurie (CHATS)]
1532 *) buffer_gets() could terminate with the buffer only half
1534 [Ben Laurie (CHATS)]
1536 *) Add assertions to prevent user-supplied crypto functions from
1537 overflowing internal buffers by having large block sizes, etc.
1538 [Ben Laurie (CHATS)]
1540 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1542 [Ben Laurie (CHATS)]
1544 *) Eliminate unused copy of key in RC4.
1545 [Ben Laurie (CHATS)]
1547 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1548 [Ben Laurie (CHATS)]
1550 *) Fix off-by-one error in EGD path.
1551 [Ben Laurie (CHATS)]
1553 *) If RANDFILE path is too long, ignore instead of truncating.
1554 [Ben Laurie (CHATS)]
1556 *) Eliminate unused and incorrectly sized X.509 structure
1558 [Ben Laurie (CHATS)]
1560 *) Eliminate unused and dangerous function knumber().
1561 [Ben Laurie (CHATS)]
1563 *) Eliminate unused and dangerous structure, KSSL_ERR.
1564 [Ben Laurie (CHATS)]
1566 *) Protect against overlong session ID context length in an encoded
1567 session object. Since these are local, this does not appear to be
1569 [Ben Laurie (CHATS)]
1571 *) Change from security patch (see 0.9.6e below) that did not affect
1572 the 0.9.6 release series:
1574 Remote buffer overflow in SSL3 protocol - an attacker could
1575 supply an oversized master key in Kerberos-enabled versions.
1577 [Ben Laurie (CHATS)]
1579 *) Change the SSL kerb5 codes to match RFC 2712.
1582 *) Make -nameopt work fully for req and add -reqopt switch.
1583 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
1585 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
1586 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
1588 *) Make sure tests can be performed even if the corresponding algorithms
1589 have been removed entirely. This was also the last step to make
1590 OpenSSL compilable with DJGPP under all reasonable conditions.
1591 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
1593 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
1594 to allow version independent disabling of normally unselected ciphers,
1595 which may be activated as a side-effect of selecting a single cipher.
1597 (E.g., cipher list string "RSA" enables ciphersuites that are left
1598 out of "ALL" because they do not provide symmetric encryption.
1599 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
1600 [Lutz Jaenicke, Bodo Moeller]
1602 *) Add appropriate support for separate platform-dependent build
1603 directories. The recommended way to make a platform-dependent
1604 build directory is the following (tested on Linux), maybe with
1607 # Place yourself outside of the OpenSSL source tree. In
1608 # this example, the environment variable OPENSSL_SOURCE
1609 # is assumed to contain the absolute OpenSSL source directory.
1610 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
1611 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
1612 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
1613 mkdir -p `dirname $F`
1614 ln -s $OPENSSL_SOURCE/$F $F
1617 To be absolutely sure not to disturb the source tree, a "make clean"
1618 is a good thing. If it isn't successfull, don't worry about it,
1619 it probably means the source directory is very clean.
1622 *) Make sure any ENGINE control commands make local copies of string
1623 pointers passed to them whenever necessary. Otherwise it is possible
1624 the caller may have overwritten (or deallocated) the original string
1625 data when a later ENGINE operation tries to use the stored values.
1626 [Götz Babin-Ebell <babinebell@trustcenter.de>]
1628 *) Improve diagnostics in file reading and command-line digests.
1629 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
1631 *) Add AES modes CFB and OFB to the object database. Correct an
1632 error in AES-CFB decryption.
1635 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
1636 allows existing EVP_CIPHER_CTX structures to be reused after
1637 calling EVP_*Final(). This behaviour is used by encryption
1638 BIOs and some applications. This has the side effect that
1639 applications must explicitly clean up cipher contexts with
1640 EVP_CIPHER_CTX_cleanup() or they will leak memory.
1643 *) Check the values of dna and dnb in bn_mul_recursive before calling
1644 bn_mul_comba (a non zero value means the a or b arrays do not contain
1645 n2 elements) and fallback to bn_mul_normal if either is not zero.
1648 *) Fix escaping of non-ASCII characters when using the -subj option
1649 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
1652 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
1653 form for "surname", serialNumber has no short form.
1654 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
1655 therefore remove "mail" short name for "internet 7".
1656 The OID for unique identifiers in X509 certificates is
1657 x500UniqueIdentifier, not uniqueIdentifier.
1658 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
1661 *) Add an "init" command to the ENGINE config module and auto initialize
1662 ENGINEs. Without any "init" command the ENGINE will be initialized
1663 after all ctrl commands have been executed on it. If init=1 the
1664 ENGINE is initailized at that point (ctrls before that point are run
1665 on the uninitialized ENGINE and after on the initialized one). If
1666 init=0 then the ENGINE will not be iniatialized at all.
1669 *) Fix the 'app_verify_callback' interface so that the user-defined
1670 argument is actually passed to the callback: In the
1671 SSL_CTX_set_cert_verify_callback() prototype, the callback
1672 declaration has been changed from
1675 int (*cb)(X509_STORE_CTX *,void *);
1676 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
1677 i=s->ctx->app_verify_callback(&ctx)
1678 has been changed into
1679 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
1681 To update applications using SSL_CTX_set_cert_verify_callback(),
1682 a dummy argument can be added to their callback functions.
1683 [D. K. Smetters <smetters@parc.xerox.com>]
1685 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
1686 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
1688 *) Add and OPENSSL_LOAD_CONF define which will cause
1689 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
1690 This allows older applications to transparently support certain
1691 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
1692 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
1693 load the config file and OPENSSL_add_all_algorithms_conf() which will
1694 always load it have also been added.
1697 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
1698 Adjust NIDs and EVP layer.
1699 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1701 *) Config modules support in openssl utility.
1703 Most commands now load modules from the config file,
1704 though in a few (such as version) this isn't done
1705 because it couldn't be used for anything.
1707 In the case of ca and req the config file used is
1708 the same as the utility itself: that is the -config
1709 command line option can be used to specify an
1713 *) Move default behaviour from OPENSSL_config(). If appname is NULL
1714 use "openssl_conf" if filename is NULL use default openssl config file.
1717 *) Add an argument to OPENSSL_config() to allow the use of an alternative
1718 config section name. Add a new flag to tolerate a missing config file
1719 and move code to CONF_modules_load_file().
1722 *) Support for crypto accelerator cards from Accelerated Encryption
1723 Processing, www.aep.ie. (Use engine 'aep')
1724 The support was copied from 0.9.6c [engine] and adapted/corrected
1725 to work with the new engine framework.
1726 [AEP Inc. and Richard Levitte]
1728 *) Support for SureWare crypto accelerator cards from Baltimore
1729 Technologies. (Use engine 'sureware')
1730 The support was copied from 0.9.6c [engine] and adapted
1731 to work with the new engine framework.
1734 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
1735 make the newer ENGINE framework commands for the CHIL engine work.
1736 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
1738 *) Make it possible to produce shared libraries on ReliantUNIX.
1739 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
1741 *) Add the configuration target debug-linux-ppro.
1742 Make 'openssl rsa' use the general key loading routines
1743 implemented in apps.c, and make those routines able to
1744 handle the key format FORMAT_NETSCAPE and the variant
1746 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1748 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
1749 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1751 *) Add -keyform to rsautl, and document -engine.
1752 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
1754 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
1755 BIO_R_NO_SUCH_FILE error code rather than the generic
1756 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
1759 *) Add new functions
1761 ERR_peek_last_error_line
1762 ERR_peek_last_error_line_data.
1763 These are similar to
1766 ERR_peek_error_line_data,
1767 but report on the latest error recorded rather than the first one
1768 still in the error queue.
1769 [Ben Laurie, Bodo Moeller]
1771 *) default_algorithms option in ENGINE config module. This allows things
1773 default_algorithms = ALL
1774 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
1777 *) Prelminary ENGINE config module.
1780 *) New experimental application configuration code.
1783 *) Change the AES code to follow the same name structure as all other
1784 symmetric ciphers, and behave the same way. Move everything to
1785 the directory crypto/aes, thereby obsoleting crypto/rijndael.
1786 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1788 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
1789 [Ben Laurie and Theo de Raadt]
1791 *) Add option to output public keys in req command.
1792 [Massimiliano Pala madwolf@openca.org]
1794 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
1795 (up to about 10% better than before for P-192 and P-224).
1798 *) New functions/macros
1800 SSL_CTX_set_msg_callback(ctx, cb)
1801 SSL_CTX_set_msg_callback_arg(ctx, arg)
1802 SSL_set_msg_callback(ssl, cb)
1803 SSL_set_msg_callback_arg(ssl, arg)
1805 to request calling a callback function
1807 void cb(int write_p, int version, int content_type,
1808 const void *buf, size_t len, SSL *ssl, void *arg)
1810 whenever a protocol message has been completely received
1811 (write_p == 0) or sent (write_p == 1). Here 'version' is the
1812 protocol version according to which the SSL library interprets
1813 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
1814 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
1815 the content type as defined in the SSL 3.0/TLS 1.0 protocol
1816 specification (change_cipher_spec(20), alert(21), handshake(22)).
1817 'buf' and 'len' point to the actual message, 'ssl' to the
1818 SSL object, and 'arg' is the application-defined value set by
1819 SSL[_CTX]_set_msg_callback_arg().
1821 'openssl s_client' and 'openssl s_server' have new '-msg' options
1822 to enable a callback that displays all protocol messages.
1825 *) Change the shared library support so shared libraries are built as
1826 soon as the corresponding static library is finished, and thereby get
1827 openssl and the test programs linked against the shared library.
1828 This still only happens when the keyword "shard" has been given to
1829 the configuration scripts.
1831 NOTE: shared library support is still an experimental thing, and
1832 backward binary compatibility is still not guaranteed.
1833 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
1835 *) Add support for Subject Information Access extension.
1836 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1838 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
1839 additional bytes when new memory had to be allocated, not just
1840 when reusing an existing buffer.
1843 *) New command line and configuration option 'utf8' for the req command.
1844 This allows field values to be specified as UTF8 strings.
1847 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
1848 runs for the former and machine-readable output for the latter.
1851 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
1852 of the e-mail address in the DN (i.e., it will go into a certificate
1853 extension only). The new configuration file option 'email_in_dn = no'
1854 has the same effect.
1855 [Massimiliano Pala madwolf@openca.org]
1857 *) Change all functions with names starting with des_ to be starting
1858 with DES_ instead. Add wrappers that are compatible with libdes,
1859 but are named _ossl_old_des_*. Finally, add macros that map the
1860 des_* symbols to the corresponding _ossl_old_des_* if libdes
1861 compatibility is desired. If OpenSSL 0.9.6c compatibility is
1862 desired, the des_* symbols will be mapped to DES_*, with one
1865 Since we provide two compatibility mappings, the user needs to
1866 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
1867 compatibility is desired. The default (i.e., when that macro
1868 isn't defined) is OpenSSL 0.9.6c compatibility.
1870 There are also macros that enable and disable the support of old
1871 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
1872 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
1873 are defined, the default will apply: to support the old des routines.
1875 In either case, one must include openssl/des.h to get the correct
1876 definitions. Do not try to just include openssl/des_old.h, that
1879 NOTE: This is a major break of an old API into a new one. Software
1880 authors are encouraged to switch to the DES_ style functions. Some
1881 time in the future, des_old.h and the libdes compatibility functions
1882 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
1883 default), and then completely removed.
1886 *) Test for certificates which contain unsupported critical extensions.
1887 If such a certificate is found during a verify operation it is
1888 rejected by default: this behaviour can be overridden by either
1889 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
1890 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
1891 X509_supported_extension() has also been added which returns 1 if a
1892 particular extension is supported.
1895 *) Modify the behaviour of EVP cipher functions in similar way to digests
1896 to retain compatibility with existing code.
1899 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
1900 compatibility with existing code. In particular the 'ctx' parameter does
1901 not have to be to be initialized before the call to EVP_DigestInit() and
1902 it is tidied up after a call to EVP_DigestFinal(). New function
1903 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
1904 EVP_MD_CTX_copy() changed to not require the destination to be
1905 initialized valid and new function EVP_MD_CTX_copy_ex() added which
1906 requires the destination to be valid.
1908 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
1909 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
1912 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
1913 so that complete 'Handshake' protocol structures are kept in memory
1914 instead of overwriting 'msg_type' and 'length' with 'body' data.
1917 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
1918 [Massimo Santin via Richard Levitte]
1920 *) Major restructuring to the underlying ENGINE code. This includes
1921 reduction of linker bloat, separation of pure "ENGINE" manipulation
1922 (initialisation, etc) from functionality dealing with implementations
1923 of specific crypto iterfaces. This change also introduces integrated
1924 support for symmetric ciphers and digest implementations - so ENGINEs
1925 can now accelerate these by providing EVP_CIPHER and EVP_MD
1926 implementations of their own. This is detailed in crypto/engine/README
1927 as it couldn't be adequately described here. However, there are a few
1928 API changes worth noting - some RSA, DSA, DH, and RAND functions that
1929 were changed in the original introduction of ENGINE code have now
1930 reverted back - the hooking from this code to ENGINE is now a good
1931 deal more passive and at run-time, operations deal directly with
1932 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
1933 dereferencing through an ENGINE pointer any more. Also, the ENGINE
1934 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
1935 they were not being used by the framework as there is no concept of a
1936 BIGNUM_METHOD and they could not be generalised to the new
1937 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
1938 ENGINE_cpy() has been removed as it cannot be consistently defined in
1942 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
1945 *) Change mkdef.pl to sort symbols that get the same entry number,
1946 and make sure the automatically generated functions ERR_load_*
1947 become part of libeay.num as well.
1950 *) New function SSL_renegotiate_pending(). This returns true once
1951 renegotiation has been requested (either SSL_renegotiate() call
1952 or HelloRequest/ClientHello receveived from the peer) and becomes
1953 false once a handshake has been completed.
1954 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
1955 sends a HelloRequest, but does not ensure that a handshake takes
1956 place. SSL_renegotiate_pending() is useful for checking if the
1957 client has followed the request.)
1960 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
1961 By default, clients may request session resumption even during
1962 renegotiation (if session ID contexts permit); with this option,
1963 session resumption is possible only in the first handshake.
1965 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
1966 more bits available for options that should not be part of
1967 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
1970 *) Add some demos for certificate and certificate request creation.
1973 *) Make maximum certificate chain size accepted from the peer application
1974 settable (SSL*_get/set_max_cert_list()), as proposed by
1975 "Douglas E. Engert" <deengert@anl.gov>.
1978 *) Add support for shared libraries for Unixware-7
1979 (Boyd Lynn Gerber <gerberb@zenez.com>).
1982 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
1983 be done prior to destruction. Use this to unload error strings from
1984 ENGINEs that load their own error strings. NB: This adds two new API
1985 functions to "get" and "set" this destroy handler in an ENGINE.
1988 *) Alter all existing ENGINE implementations (except "openssl" and
1989 "openbsd") to dynamically instantiate their own error strings. This
1990 makes them more flexible to be built both as statically-linked ENGINEs
1991 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
1992 Also, add stub code to each that makes building them as self-contained
1993 shared-libraries easier (see README.ENGINE).
1996 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
1997 implementations into applications that are completely implemented in
1998 self-contained shared-libraries. The "dynamic" ENGINE exposes control
1999 commands that can be used to configure what shared-library to load and
2000 to control aspects of the way it is handled. Also, made an update to
2001 the README.ENGINE file that brings its information up-to-date and
2002 provides some information and instructions on the "dynamic" ENGINE
2003 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2006 *) Make it possible to unload ranges of ERR strings with a new
2007 "ERR_unload_strings" function.
2010 *) Add a copy() function to EVP_MD.
2013 *) Make EVP_MD routines take a context pointer instead of just the
2014 md_data void pointer.
2017 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2018 that the digest can only process a single chunk of data
2019 (typically because it is provided by a piece of
2020 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2021 is only going to provide a single chunk of data, and hence the
2022 framework needn't accumulate the data for oneshot drivers.
2025 *) As with "ERR", make it possible to replace the underlying "ex_data"
2026 functions. This change also alters the storage and management of global
2027 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2028 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2029 index counters. The API functions that use this state have been changed
2030 to take a "class_index" rather than pointers to the class's local STACK
2031 and counter, and there is now an API function to dynamically create new
2032 classes. This centralisation allows us to (a) plug a lot of the
2033 thread-safety problems that existed, and (b) makes it possible to clean
2034 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2035 such data would previously have always leaked in application code and
2036 workarounds were in place to make the memory debugging turn a blind eye
2037 to it. Application code that doesn't use this new function will still
2038 leak as before, but their memory debugging output will announce it now
2039 rather than letting it slide.
2041 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2042 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2043 has a return value to indicate success or failure.
2046 *) Make it possible to replace the underlying "ERR" functions such that the
2047 global state (2 LHASH tables and 2 locks) is only used by the "default"
2048 implementation. This change also adds two functions to "get" and "set"
2049 the implementation prior to it being automatically set the first time
2050 any other ERR function takes place. Ie. an application can call "get",
2051 pass the return value to a module it has just loaded, and that module
2052 can call its own "set" function using that value. This means the
2053 module's "ERR" operations will use (and modify) the error state in the
2054 application and not in its own statically linked copy of OpenSSL code.
2057 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2058 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2059 the operation, and provides a more encapsulated way for external code
2060 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2061 to use these functions rather than manually incrementing the counts.
2063 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2066 *) Add EVP test program.
2069 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2072 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2073 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2074 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2075 These allow a CRL to be built without having to access X509_CRL fields
2076 directly. Modify 'ca' application to use new functions.
2079 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2080 bug workarounds. Rollback attack detection is a security feature.
2081 The problem will only arise on OpenSSL servers when TLSv1 is not
2082 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2083 Software authors not wanting to support TLSv1 will have special reasons
2084 for their choice and can explicitly enable this option.
2085 [Bodo Moeller, Lutz Jaenicke]
2087 *) Rationalise EVP so it can be extended: don't include a union of
2088 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2089 (similar to those existing for EVP_CIPHER_CTX).
2094 EVP_MD_CTX_init(&md); /* new function call */
2095 EVP_DigestInit(&md, EVP_sha1());
2096 EVP_DigestUpdate(&md, in, len);
2097 EVP_DigestFinal(&md, out, NULL);
2098 EVP_MD_CTX_cleanup(&md); /* new function call */
2102 *) Make DES key schedule conform to the usual scheme, as well as
2103 correcting its structure. This means that calls to DES functions
2104 now have to pass a pointer to a des_key_schedule instead of a
2105 plain des_key_schedule (which was actually always a pointer
2108 des_key_schedule ks;
2110 des_set_key_checked(..., &ks);
2111 des_ncbc_encrypt(..., &ks, ...);
2113 (Note that a later change renames 'des_...' into 'DES_...'.)
2116 *) Initial reduction of linker bloat: the use of some functions, such as
2117 PEM causes large amounts of unused functions to be linked in due to
2118 poor organisation. For example pem_all.c contains every PEM function
2119 which has a knock on effect of linking in large amounts of (unused)
2120 ASN1 code. Grouping together similar functions and splitting unrelated
2121 functions prevents this.
2124 *) Cleanup of EVP macros.
2127 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2128 correct _ecb suffix.
2131 *) Add initial OCSP responder support to ocsp application. The
2132 revocation information is handled using the text based index
2133 use by the ca application. The responder can either handle
2134 requests generated internally, supplied in files (for example
2135 via a CGI script) or using an internal minimal server.
2138 *) Add configuration choices to get zlib compression for TLS.
2141 *) Changes to Kerberos SSL for RFC 2712 compliance:
2142 1. Implemented real KerberosWrapper, instead of just using
2143 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2144 2. Implemented optional authenticator field of KerberosWrapper.
2146 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2147 and authenticator structs; see crypto/krb5/.
2149 Generalized Kerberos calls to support multiple Kerberos libraries.
2150 [Vern Staats <staatsvr@asc.hpc.mil>,
2151 Jeffrey Altman <jaltman@columbia.edu>
2152 via Richard Levitte]
2154 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2155 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2156 values for each of the key sizes rather than having just
2157 parameters (and 'speed' generating keys each time).
2160 *) Speed up EVP routines.
2163 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2164 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2165 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2166 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2168 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2169 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2170 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2173 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2175 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2178 *) Added the OS2-EMX target.
2179 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2181 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2182 to support NCONF routines in extension code. New function CONF_set_nconf()
2183 to allow functions which take an NCONF to also handle the old LHASH
2184 structure: this means that the old CONF compatible routines can be
2185 retained (in particular wrt extensions) without having to duplicate the
2186 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2189 *) Enhance the general user interface with mechanisms for inner control
2190 and with possibilities to have yes/no kind of prompts.
2193 *) Change all calls to low level digest routines in the library and
2194 applications to use EVP. Add missing calls to HMAC_cleanup() and
2195 don't assume HMAC_CTX can be copied using memcpy().
2196 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2198 *) Add the possibility to control engines through control names but with
2199 arbitrary arguments instead of just a string.
2200 Change the key loaders to take a UI_METHOD instead of a callback
2201 function pointer. NOTE: this breaks binary compatibility with earlier
2202 versions of OpenSSL [engine].
2203 Adapt the nCipher code for these new conditions and add a card insertion
2207 *) Enhance the general user interface with mechanisms to better support
2208 dialog box interfaces, application-defined prompts, the possibility
2209 to use defaults (for example default passwords from somewhere else)
2210 and interrupts/cancellations.
2213 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2214 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2217 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2218 tidy up some unnecessarily weird code in 'sk_new()').
2219 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2221 *) Change the key loading routines for ENGINEs to use the same kind
2222 callback (pem_password_cb) as all other routines that need this
2226 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2227 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2228 than this minimum value is recommended.
2231 *) New random seeder for OpenVMS, using the system process statistics
2232 that are easily reachable.
2235 *) Windows apparently can't transparently handle global
2236 variables defined in DLLs. Initialisations such as:
2238 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2240 wont compile. This is used by the any applications that need to
2241 declare their own ASN1 modules. This was fixed by adding the option
2242 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2243 needed for static libraries under Win32.
2246 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2247 setting of purpose and trust fields. New X509_STORE trust and
2248 purpose functions and tidy up setting in other SSL functions.
2251 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2252 structure. These are inherited by X509_STORE_CTX when it is
2253 initialised. This allows various defaults to be set in the
2254 X509_STORE structure (such as flags for CRL checking and custom
2255 purpose or trust settings) for functions which only use X509_STORE_CTX
2256 internally such as S/MIME.
2258 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2259 trust settings if they are not set in X509_STORE. This allows X509_STORE
2260 purposes and trust (in S/MIME for example) to override any set by default.
2262 Add command line options for CRL checking to smime, s_client and s_server
2266 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2267 are set then the CRL is looked up in the X509_STORE structure and
2268 its validity and signature checked, then if the certificate is found
2269 in the CRL the verify fails with a revoked error.
2271 Various new CRL related callbacks added to X509_STORE_CTX structure.
2273 Command line options added to 'verify' application to support this.
2275 This needs some additional work, such as being able to handle multiple
2276 CRLs with different times, extension based lookup (rather than just
2277 by subject name) and ultimately more complete V2 CRL extension
2281 *) Add a general user interface API (crypto/ui/). This is designed
2282 to replace things like des_read_password and friends (backward
2283 compatibility functions using this new API are provided).
2284 The purpose is to remove prompting functions from the DES code
2285 section as well as provide for prompting through dialog boxes in
2286 a window system and the like.
2289 *) Add "ex_data" support to ENGINE so implementations can add state at a
2290 per-structure level rather than having to store it globally.
2293 *) Make it possible for ENGINE structures to be copied when retrieved by
2294 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2295 This causes the "original" ENGINE structure to act like a template,
2296 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2297 operational state can be localised to each ENGINE structure, despite the
2298 fact they all share the same "methods". New ENGINE structures returned in
2299 this case have no functional references and the return value is the single
2300 structural reference. This matches the single structural reference returned
2301 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2305 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2306 needs to match any other type at all we need to manually clear the
2310 *) Changes to the "openssl engine" utility to include;
2311 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2312 about an ENGINE's available control commands.
2313 - executing control commands from command line arguments using the
2314 '-pre' and '-post' switches. '-post' is only used if '-t' is
2315 specified and the ENGINE is successfully initialised. The syntax for
2316 the individual commands are colon-separated, for example;
2317 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2320 *) New dynamic control command support for ENGINEs. ENGINEs can now
2321 declare their own commands (numbers), names (strings), descriptions,
2322 and input types for run-time discovery by calling applications. A
2323 subset of these commands are implicitly classed as "executable"
2324 depending on their input type, and only these can be invoked through
2325 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2326 can be based on user input, config files, etc). The distinction is
2327 that "executable" commands cannot return anything other than a boolean
2328 result and can only support numeric or string input, whereas some
2329 discoverable commands may only be for direct use through
2330 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2331 pointers, or other custom uses. The "executable" commands are to
2332 support parameterisations of ENGINE behaviour that can be
2333 unambiguously defined by ENGINEs and used consistently across any
2334 OpenSSL-based application. Commands have been added to all the
2335 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2336 control over shared-library paths without source code alterations.
2339 *) Changed all ENGINE implementations to dynamically allocate their
2340 ENGINEs rather than declaring them statically. Apart from this being
2341 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2342 this also allows the implementations to compile without using the
2343 internal engine_int.h header.
2346 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2347 'const' value. Any code that should be able to modify a RAND_METHOD
2348 should already have non-const pointers to it (ie. they should only
2349 modify their own ones).
2352 *) Made a variety of little tweaks to the ENGINE code.
2353 - "atalla" and "ubsec" string definitions were moved from header files
2354 to C code. "nuron" string definitions were placed in variables
2355 rather than hard-coded - allowing parameterisation of these values
2356 later on via ctrl() commands.
2357 - Removed unused "#if 0"'d code.
2358 - Fixed engine list iteration code so it uses ENGINE_free() to release
2359 structural references.
2360 - Constified the RAND_METHOD element of ENGINE structures.
2361 - Constified various get/set functions as appropriate and added
2362 missing functions (including a catch-all ENGINE_cpy that duplicates
2363 all ENGINE values onto a new ENGINE except reference counts/state).
2364 - Removed NULL parameter checks in get/set functions. Setting a method
2365 or function to NULL is a way of cancelling out a previously set
2366 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2367 and doesn't justify the extra error symbols and code.
2368 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2369 flags from engine_int.h to engine.h.
2370 - Changed prototypes for ENGINE handler functions (init(), finish(),
2371 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2374 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2375 to the algorithm using long division. The binary algorithm can be
2376 used only if the modulus is odd. On 32-bit systems, it is faster
2377 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2378 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2379 up to 450 bits. In 64-bit environments, the binary algorithm
2380 appears to be advantageous for much longer moduli; here we use it
2381 for moduli up to 2048 bits.
2384 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2385 could not support the combine flag in choice fields.
2388 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2389 extensions from a certificate request to the certificate.
2392 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2393 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2394 file: this allows the display of the certificate about to be
2395 signed to be customised, to allow certain fields to be included
2396 or excluded and extension details. The old system didn't display
2397 multicharacter strings properly, omitted fields not in the policy
2398 and couldn't display additional details such as extensions.
2401 *) Function EC_POINTs_mul for multiple scalar multiplication
2402 of an arbitrary number of elliptic curve points
2403 \sum scalars[i]*points[i],
2404 optionally including the generator defined for the EC_GROUP:
2405 scalar*generator + \sum scalars[i]*points[i].
2407 EC_POINT_mul is a simple wrapper function for the typical case
2408 that the point list has just one item (besides the optional
2412 *) First EC_METHODs for curves over GF(p):
2414 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2415 operations and provides various method functions that can also
2416 operate with faster implementations of modular arithmetic.
2418 EC_GFp_mont_method() reuses most functions that are part of
2419 EC_GFp_simple_method, but uses Montgomery arithmetic.
2421 [Bodo Moeller; point addition and point doubling
2422 implementation directly derived from source code provided by
2423 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2425 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2426 crypto/ec/ec_lib.c):
2428 Curves are EC_GROUP objects (with an optional group generator)
2429 based on EC_METHODs that are built into the library.
2431 Points are EC_POINT objects based on EC_GROUP objects.
2433 Most of the framework would be able to handle curves over arbitrary
2434 finite fields, but as there are no obvious types for fields other
2435 than GF(p), some functions are limited to that for now.
2438 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2439 that the file contains a complete HTTP response.
2442 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2443 change the def and num file printf format specifier from "%-40sXXX"
2444 to "%-39s XXX". The latter will always guarantee a space after the
2445 field while the former will cause them to run together if the field
2446 is 40 of more characters long.
2449 *) Constify the cipher and digest 'method' functions and structures
2450 and modify related functions to take constant EVP_MD and EVP_CIPHER
2454 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2455 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2458 *) Modify EVP_Digest*() routines so they now return values. Although the
2459 internal software routines can never fail additional hardware versions
2463 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2465 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2466 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2469 ERR_R_NESTED_ASN1_ERROR
2471 ERR_R_MISSING_ASN1_EOS
2472 were 4 .. 9, conflicting with
2473 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2475 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2476 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2478 Add new error code 'ERR_R_INTERNAL_ERROR'.
2481 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2485 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2486 sets the subject name for a new request or supersedes the
2487 subject name in a given request. Formats that can be parsed are
2488 'CN=Some Name, OU=myOU, C=IT'
2490 'CN=Some Name/OU=myOU/C=IT'.
2492 Add options '-batch' and '-verbose' to 'openssl req'.
2493 [Massimiliano Pala <madwolf@hackmasters.net>]
2495 *) Introduce the possibility to access global variables through
2496 functions on platform were that's the best way to handle exporting
2497 global variables in shared libraries. To enable this functionality,
2498 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2499 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2500 is normally done by Configure or something similar).
2502 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2503 in the source file (foo.c) like this:
2505 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2506 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2508 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2509 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2511 OPENSSL_DECLARE_GLOBAL(int,foo);
2512 #define foo OPENSSL_GLOBAL_REF(foo)
2513 OPENSSL_DECLARE_GLOBAL(double,bar);
2514 #define bar OPENSSL_GLOBAL_REF(bar)
2516 The #defines are very important, and therefore so is including the
2517 header file everywhere where the defined globals are used.
2519 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2520 of ASN.1 items, but that structure is a bit different.
2522 The largest change is in util/mkdef.pl which has been enhanced with
2523 better and easier to understand logic to choose which symbols should
2524 go into the Windows .def files as well as a number of fixes and code
2525 cleanup (among others, algorithm keywords are now sorted
2526 lexicographically to avoid constant rewrites).
2529 *) In BN_div() keep a copy of the sign of 'num' before writing the
2530 result to 'rm' because if rm==num the value will be overwritten
2531 and produce the wrong result if 'num' is negative: this caused
2532 problems with BN_mod() and BN_nnmod().
2535 *) Function OCSP_request_verify(). This checks the signature on an
2536 OCSP request and verifies the signer certificate. The signer
2537 certificate is just checked for a generic purpose and OCSP request
2541 *) Add OCSP_check_validity() function to check the validity of OCSP
2542 responses. OCSP responses are prepared in real time and may only
2543 be a few seconds old. Simply checking that the current time lies
2544 between thisUpdate and nextUpdate max reject otherwise valid responses
2545 caused by either OCSP responder or client clock inaccuracy. Instead
2546 we allow thisUpdate and nextUpdate to fall within a certain period of
2547 the current time. The age of the response can also optionally be
2548 checked. Two new options -validity_period and -status_age added to
2552 *) If signature or public key algorithm is unrecognized print out its
2553 OID rather that just UNKNOWN.
2556 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2557 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2558 ID to be generated from the issuer certificate alone which can then be
2559 passed to OCSP_id_issuer_cmp().
2562 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
2563 ASN1 modules to export functions returning ASN1_ITEM pointers
2564 instead of the ASN1_ITEM structures themselves. This adds several
2565 new macros which allow the underlying ASN1 function/structure to
2566 be accessed transparently. As a result code should not use ASN1_ITEM
2567 references directly (such as &X509_it) but instead use the relevant
2568 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
2569 use of the new ASN1 code on platforms where exporting structures
2570 is problematical (for example in shared libraries) but exporting
2571 functions returning pointers to structures is not.
2574 *) Add support for overriding the generation of SSL/TLS session IDs.
2575 These callbacks can be registered either in an SSL_CTX or per SSL.
2576 The purpose of this is to allow applications to control, if they wish,
2577 the arbitrary values chosen for use as session IDs, particularly as it
2578 can be useful for session caching in multiple-server environments. A
2579 command-line switch for testing this (and any client code that wishes
2580 to use such a feature) has been added to "s_server".
2581 [Geoff Thorpe, Lutz Jaenicke]
2583 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
2584 of the form '#if defined(...) || defined(...) || ...' and
2585 '#if !defined(...) && !defined(...) && ...'. This also avoids
2586 the growing number of special cases it was previously handling.
2589 *) Make all configuration macros available for application by making
2590 sure they are available in opensslconf.h, by giving them names starting
2591 with "OPENSSL_" to avoid conflicts with other packages and by making
2592 sure e_os2.h will cover all platform-specific cases together with
2594 Additionally, it is now possible to define configuration/platform-
2595 specific names (called "system identities"). In the C code, these
2596 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
2597 macro with the name beginning with "OPENSSL_SYS_", which is determined
2598 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
2602 *) New option -set_serial to 'req' and 'x509' this allows the serial
2603 number to use to be specified on the command line. Previously self
2604 signed certificates were hard coded with serial number 0 and the
2605 CA options of 'x509' had to use a serial number in a file which was
2609 *) New options to 'ca' utility to support V2 CRL entry extensions.
2610 Currently CRL reason, invalidity date and hold instruction are
2611 supported. Add new CRL extensions to V3 code and some new objects.
2614 *) New function EVP_CIPHER_CTX_set_padding() this is used to
2615 disable standard block padding (aka PKCS#5 padding) in the EVP
2616 API, which was previously mandatory. This means that the data is
2617 not padded in any way and so the total length much be a multiple
2618 of the block size, otherwise an error occurs.
2621 *) Initial (incomplete) OCSP SSL support.
2624 *) New function OCSP_parse_url(). This splits up a URL into its host,
2625 port and path components: primarily to parse OCSP URLs. New -url
2626 option to ocsp utility.
2629 *) New nonce behavior. The return value of OCSP_check_nonce() now
2630 reflects the various checks performed. Applications can decide
2631 whether to tolerate certain situations such as an absent nonce
2632 in a response when one was present in a request: the ocsp application
2633 just prints out a warning. New function OCSP_add1_basic_nonce()
2634 this is to allow responders to include a nonce in a response even if
2635 the request is nonce-less.
2638 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
2639 skipped when using openssl x509 multiple times on a single input file,
2640 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
2643 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
2644 set string type: to handle setting ASN1_TIME structures. Fix ca
2645 utility to correctly initialize revocation date of CRLs.
2648 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
2649 the clients preferred ciphersuites and rather use its own preferences.
2650 Should help to work around M$ SGC (Server Gated Cryptography) bug in
2651 Internet Explorer by ensuring unchanged hash method during stepup.
2652 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
2655 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
2656 to aes and add a new 'exist' option to print out symbols that don't
2660 *) Additional options to ocsp utility to allow flags to be set and
2661 additional certificates supplied.
2664 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
2665 OCSP client a number of certificate to only verify the response
2669 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
2670 handle the new API. Currently only ECB, CBC modes supported. Add new
2673 Add TLS AES ciphersuites as described in RFC3268, "Advanced
2674 Encryption Standard (AES) Ciphersuites for Transport Layer
2675 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
2676 not enabled by default and were not part of the "ALL" ciphersuite
2677 alias because they were not yet official; they could be
2678 explicitly requested by specifying the "AESdraft" ciphersuite
2679 group alias. In the final release of OpenSSL 0.9.7, the group
2680 alias is called "AES" and is part of "ALL".)
2681 [Ben Laurie, Steve Henson, Bodo Moeller]
2683 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
2684 request to response.
2687 *) Functions for OCSP responders. OCSP_request_onereq_count(),
2688 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
2689 extract information from a certificate request. OCSP_response_create()
2690 creates a response and optionally adds a basic response structure.
2691 OCSP_basic_add1_status() adds a complete single response to a basic
2692 response and returns the OCSP_SINGLERESP structure just added (to allow
2693 extensions to be included for example). OCSP_basic_add1_cert() adds a
2694 certificate to a basic response and OCSP_basic_sign() signs a basic
2695 response with various flags. New helper functions ASN1_TIME_check()
2696 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
2697 (converts ASN1_TIME to GeneralizedTime).
2700 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
2701 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
2702 structure from a certificate. X509_pubkey_digest() digests the public_key
2703 contents: this is used in various key identifiers.
2706 *) Make sk_sort() tolerate a NULL argument.
2707 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
2709 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
2710 passed by the function are trusted implicitly. If any of them signed the
2711 response then it is assumed to be valid and is not verified.
2714 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
2715 to data. This was previously part of the PKCS7 ASN1 code. This
2716 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
2717 [Steve Henson, reported by Kenneth R. Robinette
2718 <support@securenetterm.com>]
2720 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
2721 routines: without these tracing memory leaks is very painful.
2722 Fix leaks in PKCS12 and PKCS7 routines.
2725 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
2726 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
2727 effectively meant GeneralizedTime would never be used. Now it
2728 is initialised to -1 but X509_time_adj() now has to check the value
2729 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
2730 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
2731 [Steve Henson, reported by Kenneth R. Robinette
2732 <support@securenetterm.com>]
2734 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
2735 result in a zero length in the ASN1_INTEGER structure which was
2736 not consistent with the structure when d2i_ASN1_INTEGER() was used
2737 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
2738 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
2739 where it did not print out a minus for negative ASN1_INTEGER.
2742 *) Add summary printout to ocsp utility. The various functions which
2743 convert status values to strings have been renamed to:
2744 OCSP_response_status_str(), OCSP_cert_status_str() and
2745 OCSP_crl_reason_str() and are no longer static. New options
2746 to verify nonce values and to disable verification. OCSP response
2747 printout format cleaned up.
2750 *) Add additional OCSP certificate checks. These are those specified
2751 in RFC2560. This consists of two separate checks: the CA of the
2752 certificate being checked must either be the OCSP signer certificate
2753 or the issuer of the OCSP signer certificate. In the latter case the
2754 OCSP signer certificate must contain the OCSP signing extended key
2755 usage. This check is performed by attempting to match the OCSP
2756 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
2757 in the OCSP_CERTID structures of the response.
2760 *) Initial OCSP certificate verification added to OCSP_basic_verify()
2761 and related routines. This uses the standard OpenSSL certificate
2762 verify routines to perform initial checks (just CA validity) and
2763 to obtain the certificate chain. Then additional checks will be
2764 performed on the chain. Currently the root CA is checked to see
2765 if it is explicitly trusted for OCSP signing. This is used to set
2766 a root CA as a global signing root: that is any certificate that
2767 chains to that CA is an acceptable OCSP signing certificate.
2770 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
2771 extensions from a separate configuration file.
2772 As when reading extensions from the main configuration file,
2773 the '-extensions ...' option may be used for specifying the
2775 [Massimiliano Pala <madwolf@comune.modena.it>]
2777 *) New OCSP utility. Allows OCSP requests to be generated or
2778 read. The request can be sent to a responder and the output
2779 parsed, outputed or printed in text form. Not complete yet:
2780 still needs to check the OCSP response validity.
2783 *) New subcommands for 'openssl ca':
2784 'openssl ca -status <serial>' prints the status of the cert with
2785 the given serial number (according to the index file).
2786 'openssl ca -updatedb' updates the expiry status of certificates
2788 [Massimiliano Pala <madwolf@comune.modena.it>]
2790 *) New '-newreq-nodes' command option to CA.pl. This is like
2791 '-newreq', but calls 'openssl req' with the '-nodes' option
2792 so that the resulting key is not encrypted.
2793 [Damien Miller <djm@mindrot.org>]
2795 *) New configuration for the GNU Hurd.
2796 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
2798 *) Initial code to implement OCSP basic response verify. This
2799 is currently incomplete. Currently just finds the signer's
2800 certificate and verifies the signature on the response.
2803 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
2804 value of OPENSSLDIR. This is available via the new '-d' option
2805 to 'openssl version', and is also included in 'openssl version -a'.
2808 *) Allowing defining memory allocation callbacks that will be given
2809 file name and line number information in additional arguments
2810 (a const char* and an int). The basic functionality remains, as
2811 well as the original possibility to just replace malloc(),
2812 realloc() and free() by functions that do not know about these
2813 additional arguments. To register and find out the current
2814 settings for extended allocation functions, the following
2815 functions are provided:
2817 CRYPTO_set_mem_ex_functions
2818 CRYPTO_set_locked_mem_ex_functions
2819 CRYPTO_get_mem_ex_functions
2820 CRYPTO_get_locked_mem_ex_functions
2822 These work the same way as CRYPTO_set_mem_functions and friends.
2823 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
2824 extended allocation function is enabled.
2825 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
2826 a conventional allocation function is enabled.
2827 [Richard Levitte, Bodo Moeller]
2829 *) Finish off removing the remaining LHASH function pointer casts.
2830 There should no longer be any prototype-casting required when using
2831 the LHASH abstraction, and any casts that remain are "bugs". See
2832 the callback types and macros at the head of lhash.h for details
2833 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
2836 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
2837 If /dev/[u]random devices are not available or do not return enough
2838 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
2840 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
2841 /etc/entropy will be queried once each in this sequence, quering stops
2842 when enough entropy was collected without querying more sockets.
2845 *) Change the Unix RAND_poll() variant to be able to poll several
2846 random devices, as specified by DEVRANDOM, until a sufficient amount
2847 of data has been collected. We spend at most 10 ms on each file
2848 (select timeout) and read in non-blocking mode. DEVRANDOM now
2849 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
2850 (previously it was just the string "/dev/urandom"), so on typical
2851 platforms the 10 ms delay will never occur.
2852 Also separate out the Unix variant to its own file, rand_unix.c.
2853 For VMS, there's a currently-empty rand_vms.c.
2856 *) Move OCSP client related routines to ocsp_cl.c. These
2857 provide utility functions which an application needing
2858 to issue a request to an OCSP responder and analyse the
2859 response will typically need: as opposed to those which an
2860 OCSP responder itself would need which will be added later.
2862 OCSP_request_sign() signs an OCSP request with an API similar
2863 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
2864 response. OCSP_response_get1_basic() extracts basic response
2865 from response. OCSP_resp_find_status(): finds and extracts status
2866 information from an OCSP_CERTID structure (which will be created
2867 when the request structure is built). These are built from lower
2868 level functions which work on OCSP_SINGLERESP structures but
2869 wont normally be used unless the application wishes to examine
2870 extensions in the OCSP response for example.
2872 Replace nonce routines with a pair of functions.
2873 OCSP_request_add1_nonce() adds a nonce value and optionally
2874 generates a random value. OCSP_check_nonce() checks the
2875 validity of the nonce in an OCSP response.
2878 *) Change function OCSP_request_add() to OCSP_request_add0_id().
2879 This doesn't copy the supplied OCSP_CERTID and avoids the
2880 need to free up the newly created id. Change return type
2881 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
2882 This can then be used to add extensions to the request.
2883 Deleted OCSP_request_new(), since most of its functionality
2884 is now in OCSP_REQUEST_new() (and the case insensitive name
2885 clash) apart from the ability to set the request name which
2886 will be added elsewhere.
2889 *) Update OCSP API. Remove obsolete extensions argument from
2890 various functions. Extensions are now handled using the new
2891 OCSP extension code. New simple OCSP HTTP function which
2892 can be used to send requests and parse the response.
2895 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
2896 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
2897 uses the special reorder version of SET OF to sort the attributes
2898 and reorder them to match the encoded order. This resolves a long
2899 standing problem: a verify on a PKCS7 structure just after signing
2900 it used to fail because the attribute order did not match the
2901 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
2902 it uses the received order. This is necessary to tolerate some broken
2903 software that does not order SET OF. This is handled by encoding
2904 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
2905 to produce the required SET OF.
2908 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
2909 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
2910 files to get correct declarations of the ASN.1 item variables.
2913 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
2914 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
2915 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
2916 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
2917 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
2918 ASN1_ITEM and no wrapper functions.
2921 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
2922 replace the old function pointer based I/O routines. Change most of
2923 the *_d2i_bio() and *_d2i_fp() functions to use these.
2926 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
2927 lines, recognice more "algorithms" that can be deselected, and make
2928 it complain about algorithm deselection that isn't recognised.
2931 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
2932 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
2933 to use new functions. Add NO_ASN1_OLD which can be set to remove
2934 some old style ASN1 functions: this can be used to determine if old
2935 code will still work when these eventually go away.
2938 *) New extension functions for OCSP structures, these follow the
2939 same conventions as certificates and CRLs.
2942 *) New function X509V3_add1_i2d(). This automatically encodes and
2943 adds an extension. Its behaviour can be customised with various
2944 flags to append, replace or delete. Various wrappers added for
2945 certifcates and CRLs.
2948 *) Fix to avoid calling the underlying ASN1 print routine when
2949 an extension cannot be parsed. Correct a typo in the
2950 OCSP_SERVICELOC extension. Tidy up print OCSP format.
2953 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
2954 entries for variables.
2957 *) Add functionality to apps/openssl.c for detecting locking
2958 problems: As the program is single-threaded, all we have
2959 to do is register a locking callback using an array for
2960 storing which locks are currently held by the program.
2963 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
2964 SSL_get_ex_data_X509_STORE_idx(), which is used in
2965 ssl_verify_cert_chain() and thus can be called at any time
2966 during TLS/SSL handshakes so that thread-safety is essential.
2967 Unfortunately, the ex_data design is not at all suited
2968 for multi-threaded use, so it probably should be abolished.
2971 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
2972 [Broadcom, tweaked and integrated by Geoff Thorpe]
2974 *) Move common extension printing code to new function
2975 X509V3_print_extensions(). Reorganise OCSP print routines and
2976 implement some needed OCSP ASN1 functions. Add OCSP extensions.
2979 *) New function X509_signature_print() to remove duplication in some
2983 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
2984 set (this was treated exactly the same as SET OF previously). This
2985 is used to reorder the STACK representing the structure to match the
2986 encoding. This will be used to get round a problem where a PKCS7
2987 structure which was signed could not be verified because the STACK
2988 order did not reflect the encoded order.
2991 *) Reimplement the OCSP ASN1 module using the new code.
2994 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
2995 for its ASN1 operations. The old style function pointers still exist
2996 for now but they will eventually go away.
2999 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3000 completely replaces the old ASN1 functionality with a table driven
3001 encoder and decoder which interprets an ASN1_ITEM structure describing
3002 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3003 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3004 has also been converted to the new form.
3007 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3008 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3009 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3010 for negative moduli.
3013 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3014 of not touching the result's sign bit.
3017 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3021 *) Changed the LHASH code to use prototypes for callbacks, and created
3022 macros to declare and implement thin (optionally static) functions
3023 that provide type-safety and avoid function pointer casting for the
3024 type-specific callbacks.
3027 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3029 [Veers Staats <staatsvr@asc.hpc.mil>,
3030 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3032 *) Reformat the FAQ so the different questions and answers can be divided
3033 in sections depending on the subject.
3036 *) Have the zlib compression code load ZLIB.DLL dynamically under
3040 *) New function BN_mod_sqrt for computing square roots modulo a prime
3041 (using the probabilistic Tonelli-Shanks algorithm unless
3042 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3043 be handled deterministically).
3044 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3046 *) Make BN_mod_inverse faster by explicitly handling small quotients
3047 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3048 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3051 *) New function BN_kronecker.
3054 *) Fix BN_gcd so that it works on negative inputs; the result is
3055 positive unless both parameters are zero.
3056 Previously something reasonably close to an infinite loop was
3057 possible because numbers could be growing instead of shrinking
3058 in the implementation of Euclid's algorithm.
3061 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3062 sign of the number in question.
3064 Fix BN_is_word(a,w) to work correctly for w == 0.
3066 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3067 because its test if the absolute value of 'a' equals 'w'.
3068 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3069 it exists mostly for use in the implementations of BN_is_zero(),
3070 BN_is_one(), and BN_is_word().
3073 *) New function BN_swap.
3076 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3077 the exponentiation functions are more likely to produce reasonable
3078 results on negative inputs.
3081 *) Change BN_mod_mul so that the result is always non-negative.
3082 Previously, it could be negative if one of the factors was negative;
3083 I don't think anyone really wanted that behaviour.
3086 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3087 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3088 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3089 and add new functions:
3098 BN_mod_lshift1_quick
3102 These functions always generate non-negative results.
3104 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3105 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3107 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3108 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3109 be reduced modulo m.
3110 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3113 The following entry accidentily appeared in the CHANGES file
3114 distributed with OpenSSL 0.9.7. The modifications described in
3115 it do *not* apply to OpenSSL 0.9.7.
3117 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3118 was actually never needed) and in BN_mul(). The removal in BN_mul()
3119 required a small change in bn_mul_part_recursive() and the addition
3120 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3121 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3122 bn_sub_words() and bn_add_words() except they take arrays with
3127 *) In 'openssl passwd', verify passwords read from the terminal
3128 unless the '-salt' option is used (which usually means that
3129 verification would just waste user's time since the resulting
3130 hash is going to be compared with some given password hash)
3131 or the new '-noverify' option is used.
3133 This is an incompatible change, but it does not affect
3134 non-interactive use of 'openssl passwd' (passwords on the command
3135 line, '-stdin' option, '-in ...' option) and thus should not
3139 *) Remove all references to RSAref, since there's no more need for it.
3142 *) Make DSO load along a path given through an environment variable
3143 (SHLIB_PATH) with shl_load().
3146 *) Constify the ENGINE code as a result of BIGNUM constification.
3147 Also constify the RSA code and most things related to it. In a
3148 few places, most notable in the depth of the ASN.1 code, ugly
3149 casts back to non-const were required (to be solved at a later
3153 *) Make it so the openssl application has all engines loaded by default.
3156 *) Constify the BIGNUM routines a little more.
3159 *) Add the following functions:
3161 ENGINE_load_cswift()
3163 ENGINE_load_atalla()
3165 ENGINE_load_builtin_engines()
3167 That way, an application can itself choose if external engines that
3168 are built-in in OpenSSL shall ever be used or not. The benefit is
3169 that applications won't have to be linked with libdl or other dso
3170 libraries unless it's really needed.
3172 Changed 'openssl engine' to load all engines on demand.
3173 Changed the engine header files to avoid the duplication of some
3174 declarations (they differed!).
3177 *) 'openssl engine' can now list capabilities.
3180 *) Better error reporting in 'openssl engine'.
3183 *) Never call load_dh_param(NULL) in s_server.
3186 *) Add engine application. It can currently list engines by name and
3187 identity, and test if they are actually available.
3190 *) Improve RPM specification file by forcing symbolic linking and making
3191 sure the installed documentation is also owned by root.root.
3192 [Damien Miller <djm@mindrot.org>]
3194 *) Give the OpenSSL applications more possibilities to make use of
3195 keys (public as well as private) handled by engines.
3198 *) Add OCSP code that comes from CertCo.
3201 *) Add VMS support for the Rijndael code.
3204 *) Added untested support for Nuron crypto accelerator.
3207 *) Add support for external cryptographic devices. This code was
3208 previously distributed separately as the "engine" branch.
3209 [Geoff Thorpe, Richard Levitte]
3211 *) Rework the filename-translation in the DSO code. It is now possible to
3212 have far greater control over how a "name" is turned into a filename
3213 depending on the operating environment and any oddities about the
3214 different shared library filenames on each system.
3217 *) Support threads on FreeBSD-elf in Configure.
3220 *) Fix for SHA1 assembly problem with MASM: it produces
3221 warnings about corrupt line number information when assembling
3222 with debugging information. This is caused by the overlapping
3224 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3227 NCONF_get_number() has no error checking at all. As a replacement,
3228 NCONF_get_number_e() is defined (_e for "error checking") and is
3229 promoted strongly. The old NCONF_get_number is kept around for
3230 binary backward compatibility.
3231 Make it possible for methods to load from something other than a BIO,
3232 by providing a function pointer that is given a name instead of a BIO.
3233 For example, this could be used to load configuration data from an
3237 *) Fix for non blocking accept BIOs. Added new I/O special reason
3238 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3239 with non blocking I/O was not possible because no retry code was
3240 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3244 *) Added the beginnings of Rijndael support.
3247 *) Fix for bug in DirectoryString mask setting. Add support for
3248 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3249 to allow certificate printing to more controllable, additional
3250 'certopt' option to 'x509' to allow new printing options to be
3254 *) Clean old EAY MD5 hack from e_os.h.
3257 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3259 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3260 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3261 [Joe Orton, Steve Henson]
3263 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3265 *) Fix additional bug revealed by the NISCC test suite:
3267 Stop bug triggering large recursion when presented with
3268 certain ASN.1 tags (CVE-2003-0851)
3271 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3273 *) Fix various bugs revealed by running the NISCC test suite:
3275 Stop out of bounds reads in the ASN1 code when presented with
3276 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3278 If verify callback ignores invalid public key errors don't try to check
3279 certificate signature with the NULL public key.
3283 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3284 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3288 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3289 extra data after the compression methods not only for TLS 1.0
3290 but also for SSL 3.0 (as required by the specification).
3291 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3293 *) Change X509_certificate_type() to mark the key as exported/exportable
3294 when it's 512 *bits* long, not 512 bytes.
3297 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3299 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3300 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3301 a protocol version number mismatch like a decryption error
3302 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3305 *) Turn on RSA blinding by default in the default implementation
3306 to avoid a timing attack. Applications that don't want it can call
3307 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3308 They would be ill-advised to do so in most cases.
3309 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3311 *) Change RSA blinding code so that it works when the PRNG is not
3312 seeded (in this case, the secret RSA exponent is abused as
3313 an unpredictable seed -- if it is not unpredictable, there
3314 is no point in blinding anyway). Make RSA blinding thread-safe
3315 by remembering the creator's thread ID in rsa->blinding and
3316 having all other threads use local one-time blinding factors
3317 (this requires more computation than sharing rsa->blinding, but
3318 avoids excessive locking; and if an RSA object is not shared
3319 between threads, blinding will still be very fast).
3322 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3324 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3325 via timing by performing a MAC computation even if incorrrect
3326 block cipher padding has been found. This is a countermeasure
3327 against active attacks where the attacker has to distinguish
3328 between bad padding and a MAC verification error. (CVE-2003-0078)
3330 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3331 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3332 Martin Vuagnoux (EPFL, Ilion)]
3334 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3336 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3337 memory from it's contents. This is done with a counter that will
3338 place alternating values in each byte. This can be used to solve
3339 two issues: 1) the removal of calls to memset() by highly optimizing
3340 compilers, and 2) cleansing with other values than 0, since those can
3341 be read through on certain media, for example a swap space on disk.
3344 *) Bugfix: client side session caching did not work with external caching,
3345 because the session->cipher setting was not restored when reloading
3346 from the external cache. This problem was masked, when
3347 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3348 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3351 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3352 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3353 [Zeev Lieber <zeev-l@yahoo.com>]
3355 *) Undo an undocumented change introduced in 0.9.6e which caused
3356 repeated calls to OpenSSL_add_all_ciphers() and
3357 OpenSSL_add_all_digests() to be ignored, even after calling
3361 *) Change the default configuration reader to deal with last line not
3362 being properly terminated.
3365 *) Change X509_NAME_cmp() so it applies the special rules on handling
3366 DN values that are of type PrintableString, as well as RDNs of type
3367 emailAddress where the value has the type ia5String.
3368 [stefank@valicert.com via Richard Levitte]
3370 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3371 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3372 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3373 the bitwise-OR of the two for use by the majority of applications
3374 wanting this behaviour, and update the docs. The documented
3375 behaviour and actual behaviour were inconsistent and had been
3376 changing anyway, so this is more a bug-fix than a behavioural
3378 [Geoff Thorpe, diagnosed by Nadav Har'El]
3380 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3381 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3384 *) Fix initialization code race conditions in
3385 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3386 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3387 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3388 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3389 ssl2_get_cipher_by_char(),
3390 ssl3_get_cipher_by_char().
3391 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3393 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3394 the cached sessions are flushed, as the remove_cb() might use ex_data
3395 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3396 (see [openssl.org #212]).
3397 [Geoff Thorpe, Lutz Jaenicke]
3399 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3400 length, instead of the encoding length to d2i_ASN1_OBJECT.
3403 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3405 *) [In 0.9.6g-engine release:]
3406 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3407 [Lynn Gazis <lgazis@rainbow.com>]
3409 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3411 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3412 and get fix the header length calculation.
3413 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3414 Alon Kantor <alonk@checkpoint.com> (and others),
3417 *) Use proper error handling instead of 'assertions' in buffer
3418 overflow checks added in 0.9.6e. This prevents DoS (the
3419 assertions could call abort()).
3420 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3422 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3424 *) Add various sanity checks to asn1_get_length() to reject
3425 the ASN1 length bytes if they exceed sizeof(long), will appear
3426 negative or the content length exceeds the length of the
3428 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3430 *) Fix cipher selection routines: ciphers without encryption had no flags
3431 for the cipher strength set and where therefore not handled correctly
3432 by the selection routines (PR #130).
3435 *) Fix EVP_dsa_sha macro.
3439 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3440 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3441 that was added in OpenSSL 0.9.6d.
3443 As the countermeasure turned out to be incompatible with some
3444 broken SSL implementations, the new option is part of SSL_OP_ALL.
3445 SSL_OP_ALL is usually employed when compatibility with weird SSL
3446 implementations is desired (e.g. '-bugs' option to 's_client' and
3447 's_server'), so the new option is automatically set in many
3451 *) Changes in security patch:
3453 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3454 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3455 Air Force Materiel Command, USAF, under agreement number
3458 *) Add various sanity checks to asn1_get_length() to reject
3459 the ASN1 length bytes if they exceed sizeof(long), will appear
3460 negative or the content length exceeds the length of the
3461 supplied buffer. (CVE-2002-0659)
3462 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3464 *) Assertions for various potential buffer overflows, not known to
3466 [Ben Laurie (CHATS)]
3468 *) Various temporary buffers to hold ASCII versions of integers were
3469 too small for 64 bit platforms. (CVE-2002-0655)
3470 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3472 *) Remote buffer overflow in SSL3 protocol - an attacker could
3473 supply an oversized session ID to a client. (CVE-2002-0656)
3474 [Ben Laurie (CHATS)]
3476 *) Remote buffer overflow in SSL2 protocol - an attacker could
3477 supply an oversized client master key. (CVE-2002-0656)
3478 [Ben Laurie (CHATS)]
3480 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3482 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3483 encoded as NULL) with id-dsa-with-sha1.
3484 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3486 *) Check various X509_...() return values in apps/req.c.
3487 [Nils Larsch <nla@trustcenter.de>]
3489 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3490 an end-of-file condition would erronously be flagged, when the CRLF
3491 was just at the end of a processed block. The bug was discovered when
3492 processing data through a buffering memory BIO handing the data to a
3493 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3494 <ptsekov@syntrex.com> and Nedelcho Stanev.
3497 *) Implement a countermeasure against a vulnerability recently found
3498 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3499 before application data chunks to avoid the use of known IVs
3500 with data potentially chosen by the attacker.
3503 *) Fix length checks in ssl3_get_client_hello().
3506 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3507 to prevent ssl3_read_internal() from incorrectly assuming that
3508 ssl3_read_bytes() found application data while handshake
3509 processing was enabled when in fact s->s3->in_read_app_data was
3510 merely automatically cleared during the initial handshake.
3511 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3513 *) Fix object definitions for Private and Enterprise: they were not
3514 recognized in their shortname (=lowercase) representation. Extend
3515 obj_dat.pl to issue an error when using undefined keywords instead
3516 of silently ignoring the problem (Svenning Sorensen
3517 <sss@sss.dnsalias.net>).
3520 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3521 generators, i.e. generators other than 2 and 5. (Previously, the
3522 code did not properly initialise the 'add' and 'rem' values to
3523 BN_generate_prime().)
3525 In the new general case, we do not insist that 'generator' is
3526 actually a primitive root: This requirement is rather pointless;
3527 a generator of the order-q subgroup is just as good, if not
3531 *) Map new X509 verification errors to alerts. Discovered and submitted by
3532 Tom Wu <tom@arcot.com>.
3535 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
3536 returning non-zero before the data has been completely received
3537 when using non-blocking I/O.
3538 [Bodo Moeller; problem pointed out by John Hughes]
3540 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
3541 [Ben Laurie, Lutz Jaenicke]
3543 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
3544 Yoram Zahavi <YoramZ@gilian.com>).
3547 *) Add information about CygWin 1.3 and on, and preserve proper
3548 configuration for the versions before that.
3549 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3551 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
3552 check whether we deal with a copy of a session and do not delete from
3553 the cache in this case. Problem reported by "Izhar Shoshani Levi"
3554 <izhar@checkpoint.com>.
3557 *) Do not store session data into the internal session cache, if it
3558 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
3559 flag is set). Proposed by Aslam <aslam@funk.com>.
3562 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
3566 *) [In 0.9.6d-engine release:]
3567 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3568 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3570 *) Add the configuration target linux-s390x.
3571 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
3573 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
3574 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
3575 variable as an indication that a ClientHello message has been
3576 received. As the flag value will be lost between multiple
3577 invocations of ssl3_accept when using non-blocking I/O, the
3578 function may not be aware that a handshake has actually taken
3579 place, thus preventing a new session from being added to the
3582 To avoid this problem, we now set s->new_session to 2 instead of
3583 using a local variable.
3584 [Lutz Jaenicke, Bodo Moeller]
3586 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
3587 if the SSL_R_LENGTH_MISMATCH error is detected.
3588 [Geoff Thorpe, Bodo Moeller]
3590 *) New 'shared_ldflag' column in Configure platform table.
3593 *) Fix EVP_CIPHER_mode macro.
3594 ["Dan S. Camper" <dan@bti.net>]
3596 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
3597 type, we must throw them away by setting rr->length to 0.
3598 [D P Chang <dpc@qualys.com>]
3600 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
3602 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
3603 <Dominikus.Scherkl@biodata.com>. (The previous implementation
3604 worked incorrectly for those cases where range = 10..._2 and
3605 3*range is two bits longer than range.)
3608 *) Only add signing time to PKCS7 structures if it is not already
3612 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
3613 OBJ_ld_ce should be OBJ_id_ce.
3614 Also some ip-pda OIDs in crypto/objects/objects.txt were
3615 incorrect (cf. RFC 3039).
3616 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
3618 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
3619 returns early because it has nothing to do.
3620 [Andy Schneider <andy.schneider@bjss.co.uk>]
3622 *) [In 0.9.6c-engine release:]
3623 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
3624 [Andy Schneider <andy.schneider@bjss.co.uk>]
3626 *) [In 0.9.6c-engine release:]
3627 Add support for Cryptographic Appliance's keyserver technology.
3628 (Use engine 'keyclient')
3629 [Cryptographic Appliances and Geoff Thorpe]
3631 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
3632 is called via tools/c89.sh because arguments have to be
3633 rearranged (all '-L' options must appear before the first object
3635 [Richard Shapiro <rshapiro@abinitio.com>]
3637 *) [In 0.9.6c-engine release:]
3638 Add support for Broadcom crypto accelerator cards, backported
3640 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
3642 *) [In 0.9.6c-engine release:]
3643 Add support for SureWare crypto accelerator cards from
3644 Baltimore Technologies. (Use engine 'sureware')
3645 [Baltimore Technologies and Mark Cox]
3647 *) [In 0.9.6c-engine release:]
3648 Add support for crypto accelerator cards from Accelerated
3649 Encryption Processing, www.aep.ie. (Use engine 'aep')
3650 [AEP Inc. and Mark Cox]
3652 *) Add a configuration entry for gcc on UnixWare.
3653 [Gary Benson <gbenson@redhat.com>]
3655 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
3656 messages are stored in a single piece (fixed-length part and
3657 variable-length part combined) and fix various bugs found on the way.
3660 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
3661 instead. BIO_gethostbyname() does not know what timeouts are
3662 appropriate, so entries would stay in cache even when they have
3664 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
3666 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
3667 faced with a pathologically small ClientHello fragment that does
3668 not contain client_version: Instead of aborting with an error,
3669 simply choose the highest available protocol version (i.e.,
3670 TLS 1.0 unless it is disabled). In practice, ClientHello
3671 messages are never sent like this, but this change gives us
3672 strictly correct behaviour at least for TLS.
3675 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
3676 never resets s->method to s->ctx->method when called from within
3677 one of the SSL handshake functions.
3678 [Bodo Moeller; problem pointed out by Niko Baric]
3680 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
3681 (sent using the client's version number) if client_version is
3682 smaller than the protocol version in use. Also change
3683 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
3684 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
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