5 Changes between 0.9.8a and 0.9.9 [xx XXX xxxx]
7 *) Add an OID cross reference table and utility functions. Its purpose is to
8 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
9 rsaEncryption. This will allow some of the algorithm specific hackery
10 needed to use the correct OID to be removed.
13 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
14 structures for PKCS7_sign(). They are now set up by the relevant public
18 *) Add provisional EC pkey method with support for ECDSA and ECDH.
21 *) Add support for key derivation (agreement) in the API, DH method and
25 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
26 public and private key formats. As a side effect these add additional
27 command line functionality not previously available: DSA signatures can be
28 generated and verified using pkeyutl and DH key support and generation in
33 [Oliver Tappe <zooey@hirschkaefer.de>]
35 *) New make target "install_html_docs" installs HTML renditions of the
37 [Oliver Tappe <zooey@hirschkaefer.de>]
39 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
40 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
41 support key and parameter generation and add initial key generation
42 functionality for RSA.
45 *) Add functions for main EVP_PKEY_method operations. The undocumented
46 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
47 EVP_PKEY_{encrypt,decrypt}_old.
50 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
51 key API, doesn't do much yet.
54 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
55 public key algorithms. New option to openssl utility:
56 "list-public-key-algorithms" to print out info.
59 *) Implement the Supported Elliptic Curves Extension for
60 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
63 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
64 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
67 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
68 utilities such as rsa, dsa, dsaparam etc except they process any key
72 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
73 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
74 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
78 *) Initial support for pluggable public key ASN1.
79 De-spaghettify the public key ASN1 handling. Move public and private
80 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
81 algorithm specific handling to a single module within the relevant
82 algorithm directory. Add functions to allow (near) opaque processing
83 of public and private key structures.
86 *) Implement the Supported Point Formats Extension for
87 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
90 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
91 for the psk identity [hint] and the psk callback functions to the
92 SSL_SESSION, SSL and SSL_CTX structure.
95 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
99 SSL_CTX_use_psk_identity_hint
100 SSL_get_psk_identity_hint
102 SSL_use_psk_identity_hint
104 [Mika Kousa and Pasi Eronen of Nokia Corporation]
106 *) Add RFC 3161 compliant time stamp request creation, response generation
107 and response verification functionality.
108 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
110 *) Add initial support for TLS extensions, specifically for the server_name
111 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
112 have new members for a host name. The SSL data structure has an
113 additional member SSL_CTX *initial_ctx so that new sessions can be
114 stored in that context to allow for session resumption, even after the
115 SSL has been switched to a new SSL_CTX in reaction to a client's
116 server_name extension.
118 New functions (subject to change):
121 SSL_get_servername_type()
124 New CTRL codes and macros (subject to change):
126 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
127 - SSL_CTX_set_tlsext_servername_callback()
128 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
129 - SSL_CTX_set_tlsext_servername_arg()
130 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_hostname()
132 openssl s_client has a new '-servername ...' option.
134 openssl s_server has new options '-servername_host ...', '-cert2 ...',
135 '-key2 ...', '-servername_fatal' (subject to change). This allows
136 testing the HostName extension for a specific single host name ('-cert'
137 and '-key' remain fallbacks for handshakes without HostName
138 negotiation). If the unrecogninzed_name alert has to be sent, this by
139 default is a warning; it becomes fatal with the '-servername_fatal'
142 [Peter Sylvester, Remy Allais, Christophe Renou]
144 *) Whirlpool hash implementation is added.
147 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
148 bn(64,32). Because of instruction set limitations it doesn't have
149 any negative impact on performance. This was done mostly in order
150 to make it possible to share assembler modules, such as bn_mul_mont
151 implementations, between 32- and 64-bit builds without hassle.
154 *) Disable rogue ciphersuites:
156 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
157 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
158 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
160 The latter two were purportedly from
161 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
164 Other ciphersuites from draft-ietf-tls-56-bit-ciphersuites-01.txt
165 remain enabled for now, but are just as unofficial, and the ID
166 has long expired; these will probably disappear soon.
169 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
170 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
174 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
175 dedicated Montgomery multiplication procedure, is introduced.
176 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
177 "64-bit" performance on certain 32-bit targets.
180 *) New option SSL_OP_NO_COMP to disable use of compression selectively
181 in SSL structures. New SSL ctrl to set maximum send fragment size.
182 Save memory by seeting the I/O buffer sizes dynamically instead of
183 using the maximum available value.
186 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
187 in addition to the text details.
190 *) Very, very preliminary EXPERIMENTAL support for printing of general
191 ASN1 structures. This currently produces rather ugly output and doesn't
192 handle several customised structures at all.
195 *) Integrated support for PVK file format and some related formats such
196 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
197 these in the 'rsa' and 'dsa' utilities.
200 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
203 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
204 place for the (very old) "NETSCAPE" format certificates which are now
205 handled using new ASN1 code equivalents.
208 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
209 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
210 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
213 *) Modify CRL distribution points extension code to print out previously
214 unsupported fields. Enhance extension setting code to allow setting of
218 *) Add print and set support for Issuing Distribution Point CRL extension.
221 Changes between 0.9.8a and 0.9.8b [XX xxx XXXX]
223 *) When applying a cipher rule check to see if string match is an explicit
224 cipher suite and only match that one cipher suite if it is.
227 *) Link in manifests for VC++ if needed.
228 [Austin Ziegler <halostatue@gmail.com>]
230 *) Update support for ECC-based TLS ciphersuites according to
231 draft-ietf-tls-ecc-12.txt with proposed changes (but without
232 TLS extensions, which are supported starting with the 0.9.9
233 branch, not in the OpenSSL 0.9.8 branch).
236 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
237 opaque EVP_CIPHER_CTX handling.
240 *) Fixes and enhancements to zlib compression code. We now only use
241 "zlib1.dll" and use the default __cdecl calling convention on Win32
242 to conform with the standards mentioned here:
243 http://www.zlib.net/DLL_FAQ.txt
244 Static zlib linking now works on Windows and the new --with-zlib-include
245 --with-zlib-lib options to Configure can be used to supply the location
246 of the headers and library. Gracefully handle case where zlib library
250 *) Several fixes and enhancements to the OID generation code. The old code
251 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
252 handle numbers larger than ULONG_MAX, truncated printing and had a
253 non standard OBJ_obj2txt() behaviour.
256 *) Add support for building of engines under engine/ as shared libraries
257 under VC++ build system.
260 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
261 Hopefully, we will not see any false combination of paths any more.
264 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
266 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
267 (part of SSL_OP_ALL). This option used to disable the
268 countermeasure against man-in-the-middle protocol-version
269 rollback in the SSL 2.0 server implementation, which is a bad
270 idea. (CVE-2005-2969)
272 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
273 for Information Security, National Institute of Advanced Industrial
274 Science and Technology [AIST], Japan)]
276 *) Add two function to clear and return the verify parameter flags.
279 *) Keep cipherlists sorted in the source instead of sorting them at
280 runtime, thus removing the need for a lock.
283 *) Avoid some small subgroup attacks in Diffie-Hellman.
284 [Nick Mathewson and Ben Laurie]
286 *) Add functions for well-known primes.
289 *) Extended Windows CE support.
290 [Satoshi Nakamura and Andy Polyakov]
292 *) Initialize SSL_METHOD structures at compile time instead of during
293 runtime, thus removing the need for a lock.
296 *) Make PKCS7_decrypt() work even if no certificate is supplied by
297 attempting to decrypt each encrypted key in turn. Add support to
301 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
303 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
306 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
307 key into the same file any more.
310 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
313 *) Add -utf8 command line and config file option to 'ca'.
314 [Stefan <stf@udoma.org]
316 *) Removed the macro des_crypt(), as it seems to conflict with some
317 libraries. Use DES_crypt().
320 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
321 involves renaming the source and generated shared-libs for
322 both. The engines will accept the corrected or legacy ids
323 ('ncipher' and '4758_cca' respectively) when binding. NB,
324 this only applies when building 'shared'.
325 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
327 *) Add attribute functions to EVP_PKEY structure. Modify
328 PKCS12_create() to recognize a CSP name attribute and
329 use it. Make -CSP option work again in pkcs12 utility.
332 *) Add new functionality to the bn blinding code:
333 - automatic re-creation of the BN_BLINDING parameters after
334 a fixed number of uses (currently 32)
335 - add new function for parameter creation
336 - introduce flags to control the update behaviour of the
337 BN_BLINDING parameters
338 - hide BN_BLINDING structure
339 Add a second BN_BLINDING slot to the RSA structure to improve
340 performance when a single RSA object is shared among several
344 *) Add support for DTLS.
345 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
347 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
348 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
351 *) Remove buggy and incompletet DH cert support from
352 ssl/ssl_rsa.c and ssl/s3_both.c
355 *) Use SHA-1 instead of MD5 as the default digest algorithm for
356 the apps/openssl applications.
359 *) Compile clean with "-Wall -Wmissing-prototypes
360 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
361 DEBUG_SAFESTACK must also be set.
364 *) Change ./Configure so that certain algorithms can be disabled by default.
365 The new counterpiece to "no-xxx" is "enable-xxx".
367 The patented RC5 and MDC2 algorithms will now be disabled unless
368 "enable-rc5" and "enable-mdc2", respectively, are specified.
370 (IDEA remains enabled despite being patented. This is because IDEA
371 is frequently required for interoperability, and there is no license
372 fee for non-commercial use. As before, "no-idea" can be used to
373 avoid this algorithm.)
377 *) Add processing of proxy certificates (see RFC 3820). This work was
378 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
379 EGEE (Enabling Grids for E-science in Europe).
382 *) RC4 performance overhaul on modern architectures/implementations, such
383 as Intel P4, IA-64 and AMD64.
386 *) New utility extract-section.pl. This can be used specify an alternative
387 section number in a pod file instead of having to treat each file as
388 a separate case in Makefile. This can be done by adding two lines to the
391 =for comment openssl_section:XXX
393 The blank line is mandatory.
397 *) New arguments -certform, -keyform and -pass for s_client and s_server
398 to allow alternative format key and certificate files and passphrase
402 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
403 update associated structures and add various utility functions.
405 Add new policy related verify parameters, include policy checking in
406 standard verify code. Enhance 'smime' application with extra parameters
407 to support policy checking and print out.
410 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
411 Nehemiah processors. These extensions support AES encryption in hardware
412 as well as RNG (though RNG support is currently disabled).
413 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
415 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
418 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
419 [Andy Polyakov and a number of other people]
421 *) Improved PowerPC platform support. Most notably BIGNUM assembler
422 implementation contributed by IBM.
423 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
425 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
426 exponent rather than 'unsigned long'. There is a corresponding change to
427 the new 'rsa_keygen' element of the RSA_METHOD structure.
428 [Jelte Jansen, Geoff Thorpe]
430 *) Functionality for creating the initial serial number file is now
431 moved from CA.pl to the 'ca' utility with a new option -create_serial.
433 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
434 number file to 1, which is bound to cause problems. To avoid
435 the problems while respecting compatibility between different 0.9.7
436 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
437 CA.pl for serial number initialization. With the new release 0.9.8,
438 we can fix the problem directly in the 'ca' utility.)
441 *) Reduced header interdepencies by declaring more opaque objects in
442 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
443 give fewer recursive includes, which could break lazy source code - so
444 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
445 developers should define this symbol when building and using openssl to
446 ensure they track the recommended behaviour, interfaces, [etc], but
447 backwards-compatible behaviour prevails when this isn't defined.
450 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
453 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
454 This will generate a random key of the appropriate length based on the
455 cipher context. The EVP_CIPHER can provide its own random key generation
456 routine to support keys of a specific form. This is used in the des and
457 3des routines to generate a key of the correct parity. Update S/MIME
458 code to use new functions and hence generate correct parity DES keys.
459 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
460 valid (weak or incorrect parity).
463 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
464 as looking them up. This is useful when the verified structure may contain
465 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
466 present unless the new PKCS7_NO_CRL flag is asserted.
469 *) Extend ASN1 oid configuration module. It now additionally accepts the
472 shortName = some long name, 1.2.3.4
475 *) Reimplemented the BN_CTX implementation. There is now no more static
476 limitation on the number of variables it can handle nor the depth of the
477 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
478 information can now expand as required, and rather than having a single
479 static array of bignums, BN_CTX now uses a linked-list of such arrays
480 allowing it to expand on demand whilst maintaining the usefulness of
484 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
485 to allow all RSA operations to function using a single BN_CTX.
488 *) Preliminary support for certificate policy evaluation and checking. This
489 is initially intended to pass the tests outlined in "Conformance Testing
490 of Relying Party Client Certificate Path Processing Logic" v1.07.
493 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
494 remained unused and not that useful. A variety of other little bignum
495 tweaks and fixes have also been made continuing on from the audit (see
499 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
500 associated ASN1, EVP and SSL functions and old ASN1 macros.
503 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
504 and this should never fail. So the return value from the use of
505 BN_set_word() (which can fail due to needless expansion) is now deprecated;
506 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
509 *) BN_CTX_get() should return zero-valued bignums, providing the same
510 initialised value as BN_new().
511 [Geoff Thorpe, suggested by Ulf Möller]
513 *) Support for inhibitAnyPolicy certificate extension.
516 *) An audit of the BIGNUM code is underway, for which debugging code is
517 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
518 is considered valid when processing BIGNUMs, and causes execution to
519 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
520 further steps are taken to deliberately pollute unused data in BIGNUM
521 structures to try and expose faulty code further on. For now, openssl will
522 (in its default mode of operation) continue to tolerate the inconsistent
523 forms that it has tolerated in the past, but authors and packagers should
524 consider trying openssl and their own applications when compiled with
525 these debugging symbols defined. It will help highlight potential bugs in
526 their own code, and will improve the test coverage for OpenSSL itself. At
527 some point, these tighter rules will become openssl's default to improve
528 maintainability, though the assert()s and other overheads will remain only
529 in debugging configurations. See bn.h for more details.
530 [Geoff Thorpe, Nils Larsch, Ulf Möller]
532 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
533 that can only be obtained through BN_CTX_new() (which implicitly
534 initialises it). The presence of this function only made it possible
535 to overwrite an existing structure (and cause memory leaks).
538 *) Because of the callback-based approach for implementing LHASH as a
539 template type, lh_insert() adds opaque objects to hash-tables and
540 lh_doall() or lh_doall_arg() are typically used with a destructor callback
541 to clean up those corresponding objects before destroying the hash table
542 (and losing the object pointers). So some over-zealous constifications in
543 LHASH have been relaxed so that lh_insert() does not take (nor store) the
544 objects as "const" and the lh_doall[_arg] callback wrappers are not
545 prototyped to have "const" restrictions on the object pointers they are
546 given (and so aren't required to cast them away any more).
549 *) The tmdiff.h API was so ugly and minimal that our own timing utility
550 (speed) prefers to use its own implementation. The two implementations
551 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
552 its object type properly exposed (MS_TM) instead of casting to/from "char
553 *". This may still change yet if someone realises MS_TM and "ms_time_***"
554 aren't necessarily the greatest nomenclatures - but this is what was used
555 internally to the implementation so I've used that for now.
558 *) Ensure that deprecated functions do not get compiled when
559 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
560 the self-tests were still using deprecated key-generation functions so
561 these have been updated also.
564 *) Reorganise PKCS#7 code to separate the digest location functionality
565 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
566 New function PKCS7_set_digest() to set the digest type for PKCS#7
567 digestedData type. Add additional code to correctly generate the
568 digestedData type and add support for this type in PKCS7 initialization
572 *) New function PKCS7_set0_type_other() this initializes a PKCS7
573 structure of type "other".
576 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
577 sure the loop does correctly stop and breaking ("division by zero")
578 modulus operations are not performed. The (pre-generated) prime
579 table crypto/bn/bn_prime.h was already correct, but it could not be
580 re-generated on some platforms because of the "division by zero"
581 situation in the script.
582 [Ralf S. Engelschall]
584 *) Update support for ECC-based TLS ciphersuites according to
585 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
586 SHA-1 now is only used for "small" curves (where the
587 representation of a field element takes up to 24 bytes); for
588 larger curves, the field element resulting from ECDH is directly
589 used as premaster secret.
590 [Douglas Stebila (Sun Microsystems Laboratories)]
592 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
593 curve secp160r1 to the tests.
594 [Douglas Stebila (Sun Microsystems Laboratories)]
596 *) Add the possibility to load symbols globally with DSO.
597 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
599 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
600 control of the error stack.
603 *) Add support for STORE in ENGINE.
606 *) Add the STORE type. The intention is to provide a common interface
607 to certificate and key stores, be they simple file-based stores, or
608 HSM-type store, or LDAP stores, or...
609 NOTE: The code is currently UNTESTED and isn't really used anywhere.
612 *) Add a generic structure called OPENSSL_ITEM. This can be used to
613 pass a list of arguments to any function as well as provide a way
614 for a function to pass data back to the caller.
617 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
618 works like BUF_strdup() but can be used to duplicate a portion of
619 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
623 *) Add the function sk_find_ex() which works like sk_find(), but will
624 return an index to an element even if an exact match couldn't be
625 found. The index is guaranteed to point at the element where the
626 searched-for key would be inserted to preserve sorting order.
629 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
630 takes an extra flags argument for optional functionality. Currently,
631 the following flags are defined:
633 OBJ_BSEARCH_VALUE_ON_NOMATCH
634 This one gets OBJ_bsearch_ex() to return a pointer to the first
635 element where the comparing function returns a negative or zero
638 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
639 This one gets OBJ_bsearch_ex() to return a pointer to the first
640 element where the comparing function returns zero. This is useful
641 if there are more than one element where the comparing function
645 *) Make it possible to create self-signed certificates with 'openssl ca'
646 in such a way that the self-signed certificate becomes part of the
647 CA database and uses the same mechanisms for serial number generation
648 as all other certificate signing. The new flag '-selfsign' enables
649 this functionality. Adapt CA.sh and CA.pl.in.
652 *) Add functionality to check the public key of a certificate request
653 against a given private. This is useful to check that a certificate
654 request can be signed by that key (self-signing).
657 *) Make it possible to have multiple active certificates with the same
658 subject in the CA index file. This is done only if the keyword
659 'unique_subject' is set to 'no' in the main CA section (default
660 if 'CA_default') of the configuration file. The value is saved
661 with the database itself in a separate index attribute file,
662 named like the index file with '.attr' appended to the name.
665 *) Generate muti valued AVAs using '+' notation in config files for
669 *) Support for nameConstraints certificate extension.
672 *) Support for policyConstraints certificate extension.
675 *) Support for policyMappings certificate extension.
678 *) Make sure the default DSA_METHOD implementation only uses its
679 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
680 and change its own handlers to be NULL so as to remove unnecessary
681 indirection. This lets alternative implementations fallback to the
682 default implementation more easily.
685 *) Support for directoryName in GeneralName related extensions
689 *) Make it possible to link applications using Makefile.shared.
690 Make that possible even when linking against static libraries!
693 *) Support for single pass processing for S/MIME signing. This now
694 means that S/MIME signing can be done from a pipe, in addition
695 cleartext signing (multipart/signed type) is effectively streaming
696 and the signed data does not need to be all held in memory.
698 This is done with a new flag PKCS7_STREAM. When this flag is set
699 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
700 is done after the data is output (and digests calculated) in
704 *) Add full support for -rpath/-R, both in shared libraries and
705 applications, at least on the platforms where it's known how
709 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
710 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
711 will now compute a table of multiples of the generator that
712 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
713 faster (notably in the case of a single point multiplication,
715 [Nils Larsch, Bodo Moeller]
717 *) IPv6 support for certificate extensions. The various extensions
718 which use the IP:a.b.c.d can now take IPv6 addresses using the
719 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
723 *) Added an ENGINE that implements RSA by performing private key
724 exponentiations with the GMP library. The conversions to and from
725 GMP's mpz_t format aren't optimised nor are any montgomery forms
726 cached, and on x86 it appears OpenSSL's own performance has caught up.
727 However there are likely to be other architectures where GMP could
728 provide a boost. This ENGINE is not built in by default, but it can be
729 specified at Configure time and should be accompanied by the necessary
730 linker additions, eg;
731 ./config -DOPENSSL_USE_GMP -lgmp
734 *) "openssl engine" will not display ENGINE/DSO load failure errors when
735 testing availability of engines with "-t" - the old behaviour is
736 produced by increasing the feature's verbosity with "-tt".
739 *) ECDSA routines: under certain error conditions uninitialized BN objects
740 could be freed. Solution: make sure initialization is performed early
741 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
745 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
746 and DH_METHOD (eg. by ENGINE implementations) to override the normal
747 software implementations. For DSA and DH, parameter generation can
748 also be overriden by providing the appropriate method callbacks.
751 *) Change the "progress" mechanism used in key-generation and
752 primality testing to functions that take a new BN_GENCB pointer in
753 place of callback/argument pairs. The new API functions have "_ex"
754 postfixes and the older functions are reimplemented as wrappers for
755 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
756 declarations of the old functions to help (graceful) attempts to
757 migrate to the new functions. Also, the new key-generation API
758 functions operate on a caller-supplied key-structure and return
759 success/failure rather than returning a key or NULL - this is to
760 help make "keygen" another member function of RSA_METHOD etc.
762 Example for using the new callback interface:
764 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
768 BN_GENCB_set(&my_cb, my_callback, my_arg);
770 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
771 /* For the meaning of a, b in calls to my_callback(), see the
772 * documentation of the function that calls the callback.
773 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
774 * my_callback should return 1 if it wants BN_is_prime_ex()
775 * to continue, or 0 to stop.
780 *) Change the ZLIB compression method to be stateful, and make it
781 available to TLS with the number defined in
782 draft-ietf-tls-compression-04.txt.
785 *) Add the ASN.1 structures and functions for CertificatePair, which
786 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
788 CertificatePair ::= SEQUENCE {
789 forward [0] Certificate OPTIONAL,
790 reverse [1] Certificate OPTIONAL,
791 -- at least one of the pair shall be present -- }
793 Also implement the PEM functions to read and write certificate
794 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
796 This needed to be defined, mostly for the sake of the LDAP
797 attribute crossCertificatePair, but may prove useful elsewhere as
801 *) Make it possible to inhibit symlinking of shared libraries in
802 Makefile.shared, for Cygwin's sake.
805 *) Extend the BIGNUM API by creating a function
806 void BN_set_negative(BIGNUM *a, int neg);
807 and a macro that behave like
808 int BN_is_negative(const BIGNUM *a);
810 to avoid the need to access 'a->neg' directly in applications.
813 *) Implement fast modular reduction for pseudo-Mersenne primes
814 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
815 EC_GROUP_new_curve_GFp() will now automatically use this
817 [Nils Larsch <nla@trustcenter.de>]
819 *) Add new lock type (CRYPTO_LOCK_BN).
822 *) Change the ENGINE framework to automatically load engines
823 dynamically from specific directories unless they could be
824 found to already be built in or loaded. Move all the
825 current engines except for the cryptodev one to a new
827 The engines in engines/ are built as shared libraries if
828 the "shared" options was given to ./Configure or ./config.
829 Otherwise, they are inserted in libcrypto.a.
830 /usr/local/ssl/engines is the default directory for dynamic
831 engines, but that can be overriden at configure time through
832 the usual use of --prefix and/or --openssldir, and at run
833 time with the environment variable OPENSSL_ENGINES.
834 [Geoff Thorpe and Richard Levitte]
836 *) Add Makefile.shared, a helper makefile to build shared
837 libraries. Addapt Makefile.org.
840 *) Add version info to Win32 DLLs.
841 [Peter 'Luna' Runestig" <peter@runestig.com>]
843 *) Add new 'medium level' PKCS#12 API. Certificates and keys
844 can be added using this API to created arbitrary PKCS#12
845 files while avoiding the low level API.
847 New options to PKCS12_create(), key or cert can be NULL and
848 will then be omitted from the output file. The encryption
849 algorithm NIDs can be set to -1 for no encryption, the mac
850 iteration count can be set to 0 to omit the mac.
852 Enhance pkcs12 utility by making the -nokeys and -nocerts
853 options work when creating a PKCS#12 file. New option -nomac
854 to omit the mac, NONE can be set for an encryption algorithm.
855 New code is modified to use the enhanced PKCS12_create()
856 instead of the low level API.
859 *) Extend ASN1 encoder to support indefinite length constructed
860 encoding. This can output sequences tags and octet strings in
861 this form. Modify pk7_asn1.c to support indefinite length
862 encoding. This is experimental and needs additional code to
863 be useful, such as an ASN1 bio and some enhanced streaming
866 Extend template encode functionality so that tagging is passed
867 down to the template encoder.
870 *) Let 'openssl req' fail if an argument to '-newkey' is not
871 recognized instead of using RSA as a default.
874 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
875 As these are not official, they are not included in "ALL";
876 the "ECCdraft" ciphersuite group alias can be used to select them.
877 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
879 *) Add ECDH engine support.
880 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
882 *) Add ECDH in new directory crypto/ecdh/.
883 [Douglas Stebila (Sun Microsystems Laboratories)]
885 *) Let BN_rand_range() abort with an error after 100 iterations
886 without success (which indicates a broken PRNG).
889 *) Change BN_mod_sqrt() so that it verifies that the input value
890 is really the square of the return value. (Previously,
891 BN_mod_sqrt would show GIGO behaviour.)
894 *) Add named elliptic curves over binary fields from X9.62, SECG,
895 and WAP/WTLS; add OIDs that were still missing.
897 [Sheueling Chang Shantz and Douglas Stebila
898 (Sun Microsystems Laboratories)]
900 *) Extend the EC library for elliptic curves over binary fields
901 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
904 EC_GF2m_simple_method
908 EC_GROUP_new_curve_GF2m
909 EC_GROUP_set_curve_GF2m
910 EC_GROUP_get_curve_GF2m
911 EC_POINT_set_affine_coordinates_GF2m
912 EC_POINT_get_affine_coordinates_GF2m
913 EC_POINT_set_compressed_coordinates_GF2m
915 Point compression for binary fields is disabled by default for
916 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
919 As binary polynomials are represented as BIGNUMs, various members
920 of the EC_GROUP and EC_POINT data structures can be shared
921 between the implementations for prime fields and binary fields;
922 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
923 are essentially identical to their ..._GFp counterparts.
924 (For simplicity, the '..._GFp' prefix has been dropped from
925 various internal method names.)
927 An internal 'field_div' method (similar to 'field_mul' and
928 'field_sqr') has been added; this is used only for binary fields.
930 [Sheueling Chang Shantz and Douglas Stebila
931 (Sun Microsystems Laboratories)]
933 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
934 through methods ('mul', 'precompute_mult').
936 The generic implementations (now internally called 'ec_wNAF_mul'
937 and 'ec_wNAF_precomputed_mult') remain the default if these
938 methods are undefined.
940 [Sheueling Chang Shantz and Douglas Stebila
941 (Sun Microsystems Laboratories)]
943 *) New function EC_GROUP_get_degree, which is defined through
944 EC_METHOD. For curves over prime fields, this returns the bit
945 length of the modulus.
947 [Sheueling Chang Shantz and Douglas Stebila
948 (Sun Microsystems Laboratories)]
950 *) New functions EC_GROUP_dup, EC_POINT_dup.
951 (These simply call ..._new and ..._copy).
953 [Sheueling Chang Shantz and Douglas Stebila
954 (Sun Microsystems Laboratories)]
956 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
957 Polynomials are represented as BIGNUMs (where the sign bit is not
958 used) in the following functions [macros]:
961 BN_GF2m_sub [= BN_GF2m_add]
962 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
963 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
964 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
966 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
967 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
968 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
969 BN_GF2m_cmp [= BN_ucmp]
971 (Note that only the 'mod' functions are actually for fields GF(2^m).
972 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
974 For some functions, an the irreducible polynomial defining a
975 field can be given as an 'unsigned int[]' with strictly
976 decreasing elements giving the indices of those bits that are set;
977 i.e., p[] represents the polynomial
978 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
980 p[0] > p[1] > ... > p[k] = 0.
981 This applies to the following functions:
986 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
987 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
990 BN_GF2m_mod_solve_quad_arr
994 Conversion can be performed by the following functions:
999 bntest.c has additional tests for binary polynomial arithmetic.
1001 Two implementations for BN_GF2m_mod_div() are available.
1002 The default algorithm simply uses BN_GF2m_mod_inv() and
1003 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1004 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1005 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1007 [Sheueling Chang Shantz and Douglas Stebila
1008 (Sun Microsystems Laboratories)]
1010 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1011 functionality is disabled at compile-time.
1012 [Douglas Stebila <douglas.stebila@sun.com>]
1014 *) Change default behaviour of 'openssl asn1parse' so that more
1015 information is visible when viewing, e.g., a certificate:
1017 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1018 mode the content of non-printable OCTET STRINGs is output in a
1019 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1020 avoid the appearance of a printable string.
1021 [Nils Larsch <nla@trustcenter.de>]
1023 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1025 EC_GROUP_set_asn1_flag()
1026 EC_GROUP_get_asn1_flag()
1027 EC_GROUP_set_point_conversion_form()
1028 EC_GROUP_get_point_conversion_form()
1029 These control ASN1 encoding details:
1030 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1031 has been set to OPENSSL_EC_NAMED_CURVE.
1032 - Points are encoded in uncompressed form by default; options for
1033 asn1_for are as for point2oct, namely
1034 POINT_CONVERSION_COMPRESSED
1035 POINT_CONVERSION_UNCOMPRESSED
1036 POINT_CONVERSION_HYBRID
1038 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1041 EC_GROUP_get0_seed()
1042 EC_GROUP_get_seed_len()
1043 This is used only for ASN1 purposes (so far).
1044 [Nils Larsch <nla@trustcenter.de>]
1046 *) Add 'field_type' member to EC_METHOD, which holds the NID
1047 of the appropriate field type OID. The new function
1048 EC_METHOD_get_field_type() returns this value.
1049 [Nils Larsch <nla@trustcenter.de>]
1054 EC_POINT_point2hex()
1055 EC_POINT_hex2point()
1056 providing useful interfaces to EC_POINT_point2oct() and
1057 EC_POINT_oct2point().
1058 [Nils Larsch <nla@trustcenter.de>]
1060 *) Change internals of the EC library so that the functions
1061 EC_GROUP_set_generator()
1062 EC_GROUP_get_generator()
1063 EC_GROUP_get_order()
1064 EC_GROUP_get_cofactor()
1065 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1066 to methods, which would lead to unnecessary code duplication when
1067 adding different types of curves.
1068 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1070 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1071 arithmetic, and such that modified wNAFs are generated
1072 (which avoid length expansion in many cases).
1075 *) Add a function EC_GROUP_check_discriminant() (defined via
1076 EC_METHOD) that verifies that the curve discriminant is non-zero.
1078 Add a function EC_GROUP_check() that makes some sanity tests
1079 on a EC_GROUP, its generator and order. This includes
1080 EC_GROUP_check_discriminant().
1081 [Nils Larsch <nla@trustcenter.de>]
1083 *) Add ECDSA in new directory crypto/ecdsa/.
1085 Add applications 'openssl ecparam' and 'openssl ecdsa'
1086 (these are based on 'openssl dsaparam' and 'openssl dsa').
1088 ECDSA support is also included in various other files across the
1089 library. Most notably,
1090 - 'openssl req' now has a '-newkey ecdsa:file' option;
1091 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1092 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1093 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1094 them suitable for ECDSA where domain parameters must be
1095 extracted before the specific public key;
1096 - ECDSA engine support has been added.
1097 [Nils Larsch <nla@trustcenter.de>]
1099 *) Include some named elliptic curves, and add OIDs from X9.62,
1100 SECG, and WAP/WTLS. Each curve can be obtained from the new
1102 EC_GROUP_new_by_curve_name(),
1103 and the list of available named curves can be obtained with
1104 EC_get_builtin_curves().
1105 Also add a 'curve_name' member to EC_GROUP objects, which can be
1107 EC_GROUP_set_curve_name()
1108 EC_GROUP_get_curve_name()
1109 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1111 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1112 was actually never needed) and in BN_mul(). The removal in BN_mul()
1113 required a small change in bn_mul_part_recursive() and the addition
1114 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1115 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1116 bn_sub_words() and bn_add_words() except they take arrays with
1120 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1122 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1123 The value now differs depending on if you build for FIPS or not.
1124 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1125 safely run with a non-FIPSed libcrypto, as it may crash because of
1126 the difference induced by this change.
1129 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1131 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1132 (part of SSL_OP_ALL). This option used to disable the
1133 countermeasure against man-in-the-middle protocol-version
1134 rollback in the SSL 2.0 server implementation, which is a bad
1135 idea. (CVE-2005-2969)
1137 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1138 for Information Security, National Institute of Advanced Industrial
1139 Science and Technology [AIST], Japan)]
1141 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1142 mainly for FIPS compliance and not fully integrated at this stage.
1145 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1146 the exponentiation using a fixed-length exponent. (Otherwise,
1147 the information leaked through timing could expose the secret key
1148 after many signatures; cf. Bleichenbacher's attack on DSA with
1152 *) Make a new fixed-window mod_exp implementation the default for
1153 RSA, DSA, and DH private-key operations so that the sequence of
1154 squares and multiplies and the memory access pattern are
1155 independent of the particular secret key. This will mitigate
1156 cache-timing and potential related attacks.
1158 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1159 and this is automatically used by BN_mod_exp_mont() if the new flag
1160 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1161 will use this BN flag for private exponents unless the flag
1162 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1163 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1165 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1167 *) Change the client implementation for SSLv23_method() and
1168 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1169 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1170 (Previously, the SSL 2.0 backwards compatible Client Hello
1171 message format would be used even with SSL_OP_NO_SSLv2.)
1174 *) Add support for smime-type MIME parameter in S/MIME messages which some
1178 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1179 a threadsafe manner. Modify rsa code to use new function and add calls
1180 to dsa and dh code (which had race conditions before).
1183 *) Include the fixed error library code in the C error file definitions
1184 instead of fixing them up at runtime. This keeps the error code
1185 structures constant.
1188 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1190 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1193 *) Fixes for newer kerberos headers. NB: the casts are needed because
1194 the 'length' field is signed on one version and unsigned on another
1195 with no (?) obvious way to tell the difference, without these VC++
1196 complains. Also the "definition" of FAR (blank) is no longer included
1197 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1198 some needed definitions.
1201 *) Undo Cygwin change.
1204 *) Added support for proxy certificates according to RFC 3820.
1205 Because they may be a security thread to unaware applications,
1206 they must be explicitely allowed in run-time. See
1207 docs/HOWTO/proxy_certificates.txt for further information.
1210 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1212 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1213 server and client random values. Previously
1214 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1215 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1217 This change has negligible security impact because:
1219 1. Server and client random values still have 24 bytes of pseudo random
1222 2. Server and client random values are sent in the clear in the initial
1225 3. The master secret is derived using the premaster secret (48 bytes in
1226 size for static RSA ciphersuites) as well as client server and random
1229 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1232 [Stephen Henson, reported by UK NISCC]
1234 *) Use Windows randomness collection on Cygwin.
1237 *) Fix hang in EGD/PRNGD query when communication socket is closed
1238 prematurely by EGD/PRNGD.
1239 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1241 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1244 *) Back-port of selected performance improvements from development
1245 branch, as well as improved support for PowerPC platforms.
1248 *) Add lots of checks for memory allocation failure, error codes to indicate
1249 failure and freeing up memory if a failure occurs.
1250 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1252 *) Add new -passin argument to dgst.
1255 *) Perform some character comparisons of different types in X509_NAME_cmp:
1256 this is needed for some certificates that reencode DNs into UTF8Strings
1257 (in violation of RFC3280) and can't or wont issue name rollover
1261 *) Make an explicit check during certificate validation to see that
1262 the CA setting in each certificate on the chain is correct. As a
1263 side effect always do the following basic checks on extensions,
1264 not just when there's an associated purpose to the check:
1266 - if there is an unhandled critical extension (unless the user
1267 has chosen to ignore this fault)
1268 - if the path length has been exceeded (if one is set at all)
1269 - that certain extensions fit the associated purpose (if one has
1273 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1275 *) Avoid a race condition when CRLs are checked in a multi threaded
1276 environment. This would happen due to the reordering of the revoked
1277 entries during signature checking and serial number lookup. Now the
1278 encoding is cached and the serial number sort performed under a lock.
1279 Add new STACK function sk_is_sorted().
1282 *) Add Delta CRL to the extension code.
1285 *) Various fixes to s3_pkt.c so alerts are sent properly.
1286 [David Holmes <d.holmes@f5.com>]
1288 *) Reduce the chances of duplicate issuer name and serial numbers (in
1289 violation of RFC3280) using the OpenSSL certificate creation utilities.
1290 This is done by creating a random 64 bit value for the initial serial
1291 number when a serial number file is created or when a self signed
1292 certificate is created using 'openssl req -x509'. The initial serial
1293 number file is created using 'openssl x509 -next_serial' in CA.pl
1294 rather than being initialized to 1.
1297 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1299 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1300 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1301 [Joe Orton, Steve Henson]
1303 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1305 [Joe Orton, Steve Henson]
1307 *) Make it possible to have multiple active certificates with the same
1308 subject in the CA index file. This is done only if the keyword
1309 'unique_subject' is set to 'no' in the main CA section (default
1310 if 'CA_default') of the configuration file. The value is saved
1311 with the database itself in a separate index attribute file,
1312 named like the index file with '.attr' appended to the name.
1315 *) X509 verify fixes. Disable broken certificate workarounds when
1316 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1317 keyUsage extension present. Don't accept CRLs with unhandled critical
1318 extensions: since verify currently doesn't process CRL extensions this
1319 rejects a CRL with *any* critical extensions. Add new verify error codes
1323 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1324 A clarification of RFC2560 will require the use of OCTET STRINGs and
1325 some implementations cannot handle the current raw format. Since OpenSSL
1326 copies and compares OCSP nonces as opaque blobs without any attempt at
1327 parsing them this should not create any compatibility issues.
1330 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1331 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1332 this HMAC (and other) operations are several times slower than OpenSSL
1336 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1337 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1339 *) Use the correct content when signing type "other".
1342 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1344 *) Fix various bugs revealed by running the NISCC test suite:
1346 Stop out of bounds reads in the ASN1 code when presented with
1347 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1349 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1351 If verify callback ignores invalid public key errors don't try to check
1352 certificate signature with the NULL public key.
1356 *) New -ignore_err option in ocsp application to stop the server
1357 exiting on the first error in a request.
1360 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1361 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1365 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1366 extra data after the compression methods not only for TLS 1.0
1367 but also for SSL 3.0 (as required by the specification).
1368 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1370 *) Change X509_certificate_type() to mark the key as exported/exportable
1371 when it's 512 *bits* long, not 512 bytes.
1374 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1375 blocks during encryption.
1378 *) Various fixes to base64 BIO and non blocking I/O. On write
1379 flushes were not handled properly if the BIO retried. On read
1380 data was not being buffered properly and had various logic bugs.
1381 This also affects blocking I/O when the data being decoded is a
1385 *) Various S/MIME bugfixes and compatibility changes:
1386 output correct application/pkcs7 MIME type if
1387 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1388 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1389 of files as .eml work). Correctly handle very long lines in MIME
1393 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1395 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1396 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1397 a protocol version number mismatch like a decryption error
1398 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1401 *) Turn on RSA blinding by default in the default implementation
1402 to avoid a timing attack. Applications that don't want it can call
1403 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1404 They would be ill-advised to do so in most cases.
1405 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1407 *) Change RSA blinding code so that it works when the PRNG is not
1408 seeded (in this case, the secret RSA exponent is abused as
1409 an unpredictable seed -- if it is not unpredictable, there
1410 is no point in blinding anyway). Make RSA blinding thread-safe
1411 by remembering the creator's thread ID in rsa->blinding and
1412 having all other threads use local one-time blinding factors
1413 (this requires more computation than sharing rsa->blinding, but
1414 avoids excessive locking; and if an RSA object is not shared
1415 between threads, blinding will still be very fast).
1418 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1419 ENGINE as defaults for all supported algorithms irrespective of
1420 the 'flags' parameter. 'flags' is now honoured, so applications
1421 should make sure they are passing it correctly.
1424 *) Target "mingw" now allows native Windows code to be generated in
1425 the Cygwin environment as well as with the MinGW compiler.
1428 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1430 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1431 via timing by performing a MAC computation even if incorrrect
1432 block cipher padding has been found. This is a countermeasure
1433 against active attacks where the attacker has to distinguish
1434 between bad padding and a MAC verification error. (CVE-2003-0078)
1436 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1437 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1438 Martin Vuagnoux (EPFL, Ilion)]
1440 *) Make the no-err option work as intended. The intention with no-err
1441 is not to have the whole error stack handling routines removed from
1442 libcrypto, it's only intended to remove all the function name and
1443 reason texts, thereby removing some of the footprint that may not
1444 be interesting if those errors aren't displayed anyway.
1446 NOTE: it's still possible for any application or module to have it's
1447 own set of error texts inserted. The routines are there, just not
1448 used by default when no-err is given.
1451 *) Add support for FreeBSD on IA64.
1452 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1454 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1455 Kerberos function mit_des_cbc_cksum(). Before this change,
1456 the value returned by DES_cbc_cksum() was like the one from
1457 mit_des_cbc_cksum(), except the bytes were swapped.
1458 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1460 *) Allow an application to disable the automatic SSL chain building.
1461 Before this a rather primitive chain build was always performed in
1462 ssl3_output_cert_chain(): an application had no way to send the
1463 correct chain if the automatic operation produced an incorrect result.
1465 Now the chain builder is disabled if either:
1467 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1469 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1471 The reasoning behind this is that an application would not want the
1472 auto chain building to take place if extra chain certificates are
1473 present and it might also want a means of sending no additional
1474 certificates (for example the chain has two certificates and the
1478 *) Add the possibility to build without the ENGINE framework.
1479 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1481 *) Under Win32 gmtime() can return NULL: check return value in
1482 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1485 *) DSA routines: under certain error conditions uninitialized BN objects
1486 could be freed. Solution: make sure initialization is performed early
1487 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1488 Nils Larsch <nla@trustcenter.de> via PR#459)
1491 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1492 checked on reconnect on the client side, therefore session resumption
1493 could still fail with a "ssl session id is different" error. This
1494 behaviour is masked when SSL_OP_ALL is used due to
1495 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1496 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1497 followup to PR #377.
1500 *) IA-32 assembler support enhancements: unified ELF targets, support
1501 for SCO/Caldera platforms, fix for Cygwin shared build.
1504 *) Add support for FreeBSD on sparc64. As a consequence, support for
1505 FreeBSD on non-x86 processors is separate from x86 processors on
1506 the config script, much like the NetBSD support.
1507 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1509 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1511 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1514 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1515 code (06) was taken as the first octet of the session ID and the last
1516 octet was ignored consequently. As a result SSLv2 client side session
1517 caching could not have worked due to the session ID mismatch between
1519 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1523 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1524 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1528 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1529 seems that in spite of existing for more than a year, many application
1530 author have done nothing to provide the necessary callbacks, which
1531 means that this particular engine will not work properly anywhere.
1532 This is a very unfortunate situation which forces us, in the name
1533 of usability, to give the hw_ncipher.c a static lock, which is part
1535 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1536 appear in 0.9.8 or later. We EXPECT application authors to have
1537 dealt properly with this when 0.9.8 is released (unless we actually
1538 make such changes in the libcrypto locking code that changes will
1539 have to be made anyway).
1542 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1543 octets have been read, EOF or an error occurs. Without this change
1544 some truncated ASN1 structures will not produce an error.
1547 *) Disable Heimdal support, since it hasn't been fully implemented.
1548 Still give the possibility to force the use of Heimdal, but with
1549 warnings and a request that patches get sent to openssl-dev.
1552 *) Add the VC-CE target, introduce the WINCE sysname, and add
1553 INSTALL.WCE and appropriate conditionals to make it build.
1554 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1556 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1557 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1558 edit numbers of the version.
1559 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1561 *) Introduce safe string copy and catenation functions
1562 (BUF_strlcpy() and BUF_strlcat()).
1563 [Ben Laurie (CHATS) and Richard Levitte]
1565 *) Avoid using fixed-size buffers for one-line DNs.
1566 [Ben Laurie (CHATS)]
1568 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1569 resizing buffers containing secrets, and use where appropriate.
1570 [Ben Laurie (CHATS)]
1572 *) Avoid using fixed size buffers for configuration file location.
1573 [Ben Laurie (CHATS)]
1575 *) Avoid filename truncation for various CA files.
1576 [Ben Laurie (CHATS)]
1578 *) Use sizeof in preference to magic numbers.
1579 [Ben Laurie (CHATS)]
1581 *) Avoid filename truncation in cert requests.
1582 [Ben Laurie (CHATS)]
1584 *) Add assertions to check for (supposedly impossible) buffer
1586 [Ben Laurie (CHATS)]
1588 *) Don't cache truncated DNS entries in the local cache (this could
1589 potentially lead to a spoofing attack).
1590 [Ben Laurie (CHATS)]
1592 *) Fix various buffers to be large enough for hex/decimal
1593 representations in a platform independent manner.
1594 [Ben Laurie (CHATS)]
1596 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1597 resizing buffers containing secrets, and use where appropriate.
1598 [Ben Laurie (CHATS)]
1600 *) Add BIO_indent() to avoid much slightly worrying code to do
1602 [Ben Laurie (CHATS)]
1604 *) Convert sprintf()/BIO_puts() to BIO_printf().
1605 [Ben Laurie (CHATS)]
1607 *) buffer_gets() could terminate with the buffer only half
1609 [Ben Laurie (CHATS)]
1611 *) Add assertions to prevent user-supplied crypto functions from
1612 overflowing internal buffers by having large block sizes, etc.
1613 [Ben Laurie (CHATS)]
1615 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1617 [Ben Laurie (CHATS)]
1619 *) Eliminate unused copy of key in RC4.
1620 [Ben Laurie (CHATS)]
1622 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1623 [Ben Laurie (CHATS)]
1625 *) Fix off-by-one error in EGD path.
1626 [Ben Laurie (CHATS)]
1628 *) If RANDFILE path is too long, ignore instead of truncating.
1629 [Ben Laurie (CHATS)]
1631 *) Eliminate unused and incorrectly sized X.509 structure
1633 [Ben Laurie (CHATS)]
1635 *) Eliminate unused and dangerous function knumber().
1636 [Ben Laurie (CHATS)]
1638 *) Eliminate unused and dangerous structure, KSSL_ERR.
1639 [Ben Laurie (CHATS)]
1641 *) Protect against overlong session ID context length in an encoded
1642 session object. Since these are local, this does not appear to be
1644 [Ben Laurie (CHATS)]
1646 *) Change from security patch (see 0.9.6e below) that did not affect
1647 the 0.9.6 release series:
1649 Remote buffer overflow in SSL3 protocol - an attacker could
1650 supply an oversized master key in Kerberos-enabled versions.
1652 [Ben Laurie (CHATS)]
1654 *) Change the SSL kerb5 codes to match RFC 2712.
1657 *) Make -nameopt work fully for req and add -reqopt switch.
1658 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
1660 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
1661 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
1663 *) Make sure tests can be performed even if the corresponding algorithms
1664 have been removed entirely. This was also the last step to make
1665 OpenSSL compilable with DJGPP under all reasonable conditions.
1666 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
1668 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
1669 to allow version independent disabling of normally unselected ciphers,
1670 which may be activated as a side-effect of selecting a single cipher.
1672 (E.g., cipher list string "RSA" enables ciphersuites that are left
1673 out of "ALL" because they do not provide symmetric encryption.
1674 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
1675 [Lutz Jaenicke, Bodo Moeller]
1677 *) Add appropriate support for separate platform-dependent build
1678 directories. The recommended way to make a platform-dependent
1679 build directory is the following (tested on Linux), maybe with
1682 # Place yourself outside of the OpenSSL source tree. In
1683 # this example, the environment variable OPENSSL_SOURCE
1684 # is assumed to contain the absolute OpenSSL source directory.
1685 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
1686 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
1687 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
1688 mkdir -p `dirname $F`
1689 ln -s $OPENSSL_SOURCE/$F $F
1692 To be absolutely sure not to disturb the source tree, a "make clean"
1693 is a good thing. If it isn't successfull, don't worry about it,
1694 it probably means the source directory is very clean.
1697 *) Make sure any ENGINE control commands make local copies of string
1698 pointers passed to them whenever necessary. Otherwise it is possible
1699 the caller may have overwritten (or deallocated) the original string
1700 data when a later ENGINE operation tries to use the stored values.
1701 [Götz Babin-Ebell <babinebell@trustcenter.de>]
1703 *) Improve diagnostics in file reading and command-line digests.
1704 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
1706 *) Add AES modes CFB and OFB to the object database. Correct an
1707 error in AES-CFB decryption.
1710 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
1711 allows existing EVP_CIPHER_CTX structures to be reused after
1712 calling EVP_*Final(). This behaviour is used by encryption
1713 BIOs and some applications. This has the side effect that
1714 applications must explicitly clean up cipher contexts with
1715 EVP_CIPHER_CTX_cleanup() or they will leak memory.
1718 *) Check the values of dna and dnb in bn_mul_recursive before calling
1719 bn_mul_comba (a non zero value means the a or b arrays do not contain
1720 n2 elements) and fallback to bn_mul_normal if either is not zero.
1723 *) Fix escaping of non-ASCII characters when using the -subj option
1724 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
1727 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
1728 form for "surname", serialNumber has no short form.
1729 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
1730 therefore remove "mail" short name for "internet 7".
1731 The OID for unique identifiers in X509 certificates is
1732 x500UniqueIdentifier, not uniqueIdentifier.
1733 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
1736 *) Add an "init" command to the ENGINE config module and auto initialize
1737 ENGINEs. Without any "init" command the ENGINE will be initialized
1738 after all ctrl commands have been executed on it. If init=1 the
1739 ENGINE is initailized at that point (ctrls before that point are run
1740 on the uninitialized ENGINE and after on the initialized one). If
1741 init=0 then the ENGINE will not be iniatialized at all.
1744 *) Fix the 'app_verify_callback' interface so that the user-defined
1745 argument is actually passed to the callback: In the
1746 SSL_CTX_set_cert_verify_callback() prototype, the callback
1747 declaration has been changed from
1750 int (*cb)(X509_STORE_CTX *,void *);
1751 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
1752 i=s->ctx->app_verify_callback(&ctx)
1753 has been changed into
1754 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
1756 To update applications using SSL_CTX_set_cert_verify_callback(),
1757 a dummy argument can be added to their callback functions.
1758 [D. K. Smetters <smetters@parc.xerox.com>]
1760 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
1761 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
1763 *) Add and OPENSSL_LOAD_CONF define which will cause
1764 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
1765 This allows older applications to transparently support certain
1766 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
1767 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
1768 load the config file and OPENSSL_add_all_algorithms_conf() which will
1769 always load it have also been added.
1772 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
1773 Adjust NIDs and EVP layer.
1774 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1776 *) Config modules support in openssl utility.
1778 Most commands now load modules from the config file,
1779 though in a few (such as version) this isn't done
1780 because it couldn't be used for anything.
1782 In the case of ca and req the config file used is
1783 the same as the utility itself: that is the -config
1784 command line option can be used to specify an
1788 *) Move default behaviour from OPENSSL_config(). If appname is NULL
1789 use "openssl_conf" if filename is NULL use default openssl config file.
1792 *) Add an argument to OPENSSL_config() to allow the use of an alternative
1793 config section name. Add a new flag to tolerate a missing config file
1794 and move code to CONF_modules_load_file().
1797 *) Support for crypto accelerator cards from Accelerated Encryption
1798 Processing, www.aep.ie. (Use engine 'aep')
1799 The support was copied from 0.9.6c [engine] and adapted/corrected
1800 to work with the new engine framework.
1801 [AEP Inc. and Richard Levitte]
1803 *) Support for SureWare crypto accelerator cards from Baltimore
1804 Technologies. (Use engine 'sureware')
1805 The support was copied from 0.9.6c [engine] and adapted
1806 to work with the new engine framework.
1809 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
1810 make the newer ENGINE framework commands for the CHIL engine work.
1811 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
1813 *) Make it possible to produce shared libraries on ReliantUNIX.
1814 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
1816 *) Add the configuration target debug-linux-ppro.
1817 Make 'openssl rsa' use the general key loading routines
1818 implemented in apps.c, and make those routines able to
1819 handle the key format FORMAT_NETSCAPE and the variant
1821 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1823 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
1824 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1826 *) Add -keyform to rsautl, and document -engine.
1827 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
1829 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
1830 BIO_R_NO_SUCH_FILE error code rather than the generic
1831 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
1834 *) Add new functions
1836 ERR_peek_last_error_line
1837 ERR_peek_last_error_line_data.
1838 These are similar to
1841 ERR_peek_error_line_data,
1842 but report on the latest error recorded rather than the first one
1843 still in the error queue.
1844 [Ben Laurie, Bodo Moeller]
1846 *) default_algorithms option in ENGINE config module. This allows things
1848 default_algorithms = ALL
1849 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
1852 *) Prelminary ENGINE config module.
1855 *) New experimental application configuration code.
1858 *) Change the AES code to follow the same name structure as all other
1859 symmetric ciphers, and behave the same way. Move everything to
1860 the directory crypto/aes, thereby obsoleting crypto/rijndael.
1861 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1863 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
1864 [Ben Laurie and Theo de Raadt]
1866 *) Add option to output public keys in req command.
1867 [Massimiliano Pala madwolf@openca.org]
1869 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
1870 (up to about 10% better than before for P-192 and P-224).
1873 *) New functions/macros
1875 SSL_CTX_set_msg_callback(ctx, cb)
1876 SSL_CTX_set_msg_callback_arg(ctx, arg)
1877 SSL_set_msg_callback(ssl, cb)
1878 SSL_set_msg_callback_arg(ssl, arg)
1880 to request calling a callback function
1882 void cb(int write_p, int version, int content_type,
1883 const void *buf, size_t len, SSL *ssl, void *arg)
1885 whenever a protocol message has been completely received
1886 (write_p == 0) or sent (write_p == 1). Here 'version' is the
1887 protocol version according to which the SSL library interprets
1888 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
1889 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
1890 the content type as defined in the SSL 3.0/TLS 1.0 protocol
1891 specification (change_cipher_spec(20), alert(21), handshake(22)).
1892 'buf' and 'len' point to the actual message, 'ssl' to the
1893 SSL object, and 'arg' is the application-defined value set by
1894 SSL[_CTX]_set_msg_callback_arg().
1896 'openssl s_client' and 'openssl s_server' have new '-msg' options
1897 to enable a callback that displays all protocol messages.
1900 *) Change the shared library support so shared libraries are built as
1901 soon as the corresponding static library is finished, and thereby get
1902 openssl and the test programs linked against the shared library.
1903 This still only happens when the keyword "shard" has been given to
1904 the configuration scripts.
1906 NOTE: shared library support is still an experimental thing, and
1907 backward binary compatibility is still not guaranteed.
1908 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
1910 *) Add support for Subject Information Access extension.
1911 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1913 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
1914 additional bytes when new memory had to be allocated, not just
1915 when reusing an existing buffer.
1918 *) New command line and configuration option 'utf8' for the req command.
1919 This allows field values to be specified as UTF8 strings.
1922 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
1923 runs for the former and machine-readable output for the latter.
1926 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
1927 of the e-mail address in the DN (i.e., it will go into a certificate
1928 extension only). The new configuration file option 'email_in_dn = no'
1929 has the same effect.
1930 [Massimiliano Pala madwolf@openca.org]
1932 *) Change all functions with names starting with des_ to be starting
1933 with DES_ instead. Add wrappers that are compatible with libdes,
1934 but are named _ossl_old_des_*. Finally, add macros that map the
1935 des_* symbols to the corresponding _ossl_old_des_* if libdes
1936 compatibility is desired. If OpenSSL 0.9.6c compatibility is
1937 desired, the des_* symbols will be mapped to DES_*, with one
1940 Since we provide two compatibility mappings, the user needs to
1941 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
1942 compatibility is desired. The default (i.e., when that macro
1943 isn't defined) is OpenSSL 0.9.6c compatibility.
1945 There are also macros that enable and disable the support of old
1946 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
1947 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
1948 are defined, the default will apply: to support the old des routines.
1950 In either case, one must include openssl/des.h to get the correct
1951 definitions. Do not try to just include openssl/des_old.h, that
1954 NOTE: This is a major break of an old API into a new one. Software
1955 authors are encouraged to switch to the DES_ style functions. Some
1956 time in the future, des_old.h and the libdes compatibility functions
1957 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
1958 default), and then completely removed.
1961 *) Test for certificates which contain unsupported critical extensions.
1962 If such a certificate is found during a verify operation it is
1963 rejected by default: this behaviour can be overridden by either
1964 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
1965 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
1966 X509_supported_extension() has also been added which returns 1 if a
1967 particular extension is supported.
1970 *) Modify the behaviour of EVP cipher functions in similar way to digests
1971 to retain compatibility with existing code.
1974 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
1975 compatibility with existing code. In particular the 'ctx' parameter does
1976 not have to be to be initialized before the call to EVP_DigestInit() and
1977 it is tidied up after a call to EVP_DigestFinal(). New function
1978 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
1979 EVP_MD_CTX_copy() changed to not require the destination to be
1980 initialized valid and new function EVP_MD_CTX_copy_ex() added which
1981 requires the destination to be valid.
1983 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
1984 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
1987 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
1988 so that complete 'Handshake' protocol structures are kept in memory
1989 instead of overwriting 'msg_type' and 'length' with 'body' data.
1992 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
1993 [Massimo Santin via Richard Levitte]
1995 *) Major restructuring to the underlying ENGINE code. This includes
1996 reduction of linker bloat, separation of pure "ENGINE" manipulation
1997 (initialisation, etc) from functionality dealing with implementations
1998 of specific crypto iterfaces. This change also introduces integrated
1999 support for symmetric ciphers and digest implementations - so ENGINEs
2000 can now accelerate these by providing EVP_CIPHER and EVP_MD
2001 implementations of their own. This is detailed in crypto/engine/README
2002 as it couldn't be adequately described here. However, there are a few
2003 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2004 were changed in the original introduction of ENGINE code have now
2005 reverted back - the hooking from this code to ENGINE is now a good
2006 deal more passive and at run-time, operations deal directly with
2007 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2008 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2009 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2010 they were not being used by the framework as there is no concept of a
2011 BIGNUM_METHOD and they could not be generalised to the new
2012 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2013 ENGINE_cpy() has been removed as it cannot be consistently defined in
2017 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2020 *) Change mkdef.pl to sort symbols that get the same entry number,
2021 and make sure the automatically generated functions ERR_load_*
2022 become part of libeay.num as well.
2025 *) New function SSL_renegotiate_pending(). This returns true once
2026 renegotiation has been requested (either SSL_renegotiate() call
2027 or HelloRequest/ClientHello receveived from the peer) and becomes
2028 false once a handshake has been completed.
2029 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2030 sends a HelloRequest, but does not ensure that a handshake takes
2031 place. SSL_renegotiate_pending() is useful for checking if the
2032 client has followed the request.)
2035 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2036 By default, clients may request session resumption even during
2037 renegotiation (if session ID contexts permit); with this option,
2038 session resumption is possible only in the first handshake.
2040 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2041 more bits available for options that should not be part of
2042 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2045 *) Add some demos for certificate and certificate request creation.
2048 *) Make maximum certificate chain size accepted from the peer application
2049 settable (SSL*_get/set_max_cert_list()), as proposed by
2050 "Douglas E. Engert" <deengert@anl.gov>.
2053 *) Add support for shared libraries for Unixware-7
2054 (Boyd Lynn Gerber <gerberb@zenez.com>).
2057 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2058 be done prior to destruction. Use this to unload error strings from
2059 ENGINEs that load their own error strings. NB: This adds two new API
2060 functions to "get" and "set" this destroy handler in an ENGINE.
2063 *) Alter all existing ENGINE implementations (except "openssl" and
2064 "openbsd") to dynamically instantiate their own error strings. This
2065 makes them more flexible to be built both as statically-linked ENGINEs
2066 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2067 Also, add stub code to each that makes building them as self-contained
2068 shared-libraries easier (see README.ENGINE).
2071 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2072 implementations into applications that are completely implemented in
2073 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2074 commands that can be used to configure what shared-library to load and
2075 to control aspects of the way it is handled. Also, made an update to
2076 the README.ENGINE file that brings its information up-to-date and
2077 provides some information and instructions on the "dynamic" ENGINE
2078 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2081 *) Make it possible to unload ranges of ERR strings with a new
2082 "ERR_unload_strings" function.
2085 *) Add a copy() function to EVP_MD.
2088 *) Make EVP_MD routines take a context pointer instead of just the
2089 md_data void pointer.
2092 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2093 that the digest can only process a single chunk of data
2094 (typically because it is provided by a piece of
2095 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2096 is only going to provide a single chunk of data, and hence the
2097 framework needn't accumulate the data for oneshot drivers.
2100 *) As with "ERR", make it possible to replace the underlying "ex_data"
2101 functions. This change also alters the storage and management of global
2102 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2103 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2104 index counters. The API functions that use this state have been changed
2105 to take a "class_index" rather than pointers to the class's local STACK
2106 and counter, and there is now an API function to dynamically create new
2107 classes. This centralisation allows us to (a) plug a lot of the
2108 thread-safety problems that existed, and (b) makes it possible to clean
2109 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2110 such data would previously have always leaked in application code and
2111 workarounds were in place to make the memory debugging turn a blind eye
2112 to it. Application code that doesn't use this new function will still
2113 leak as before, but their memory debugging output will announce it now
2114 rather than letting it slide.
2116 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2117 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2118 has a return value to indicate success or failure.
2121 *) Make it possible to replace the underlying "ERR" functions such that the
2122 global state (2 LHASH tables and 2 locks) is only used by the "default"
2123 implementation. This change also adds two functions to "get" and "set"
2124 the implementation prior to it being automatically set the first time
2125 any other ERR function takes place. Ie. an application can call "get",
2126 pass the return value to a module it has just loaded, and that module
2127 can call its own "set" function using that value. This means the
2128 module's "ERR" operations will use (and modify) the error state in the
2129 application and not in its own statically linked copy of OpenSSL code.
2132 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2133 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2134 the operation, and provides a more encapsulated way for external code
2135 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2136 to use these functions rather than manually incrementing the counts.
2138 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2141 *) Add EVP test program.
2144 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2147 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2148 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2149 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2150 These allow a CRL to be built without having to access X509_CRL fields
2151 directly. Modify 'ca' application to use new functions.
2154 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2155 bug workarounds. Rollback attack detection is a security feature.
2156 The problem will only arise on OpenSSL servers when TLSv1 is not
2157 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2158 Software authors not wanting to support TLSv1 will have special reasons
2159 for their choice and can explicitly enable this option.
2160 [Bodo Moeller, Lutz Jaenicke]
2162 *) Rationalise EVP so it can be extended: don't include a union of
2163 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2164 (similar to those existing for EVP_CIPHER_CTX).
2169 EVP_MD_CTX_init(&md); /* new function call */
2170 EVP_DigestInit(&md, EVP_sha1());
2171 EVP_DigestUpdate(&md, in, len);
2172 EVP_DigestFinal(&md, out, NULL);
2173 EVP_MD_CTX_cleanup(&md); /* new function call */
2177 *) Make DES key schedule conform to the usual scheme, as well as
2178 correcting its structure. This means that calls to DES functions
2179 now have to pass a pointer to a des_key_schedule instead of a
2180 plain des_key_schedule (which was actually always a pointer
2183 des_key_schedule ks;
2185 des_set_key_checked(..., &ks);
2186 des_ncbc_encrypt(..., &ks, ...);
2188 (Note that a later change renames 'des_...' into 'DES_...'.)
2191 *) Initial reduction of linker bloat: the use of some functions, such as
2192 PEM causes large amounts of unused functions to be linked in due to
2193 poor organisation. For example pem_all.c contains every PEM function
2194 which has a knock on effect of linking in large amounts of (unused)
2195 ASN1 code. Grouping together similar functions and splitting unrelated
2196 functions prevents this.
2199 *) Cleanup of EVP macros.
2202 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2203 correct _ecb suffix.
2206 *) Add initial OCSP responder support to ocsp application. The
2207 revocation information is handled using the text based index
2208 use by the ca application. The responder can either handle
2209 requests generated internally, supplied in files (for example
2210 via a CGI script) or using an internal minimal server.
2213 *) Add configuration choices to get zlib compression for TLS.
2216 *) Changes to Kerberos SSL for RFC 2712 compliance:
2217 1. Implemented real KerberosWrapper, instead of just using
2218 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2219 2. Implemented optional authenticator field of KerberosWrapper.
2221 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2222 and authenticator structs; see crypto/krb5/.
2224 Generalized Kerberos calls to support multiple Kerberos libraries.
2225 [Vern Staats <staatsvr@asc.hpc.mil>,
2226 Jeffrey Altman <jaltman@columbia.edu>
2227 via Richard Levitte]
2229 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2230 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2231 values for each of the key sizes rather than having just
2232 parameters (and 'speed' generating keys each time).
2235 *) Speed up EVP routines.
2238 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2239 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2240 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2241 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2243 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2244 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2245 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2248 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2250 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2253 *) Added the OS2-EMX target.
2254 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2256 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2257 to support NCONF routines in extension code. New function CONF_set_nconf()
2258 to allow functions which take an NCONF to also handle the old LHASH
2259 structure: this means that the old CONF compatible routines can be
2260 retained (in particular wrt extensions) without having to duplicate the
2261 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2264 *) Enhance the general user interface with mechanisms for inner control
2265 and with possibilities to have yes/no kind of prompts.
2268 *) Change all calls to low level digest routines in the library and
2269 applications to use EVP. Add missing calls to HMAC_cleanup() and
2270 don't assume HMAC_CTX can be copied using memcpy().
2271 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2273 *) Add the possibility to control engines through control names but with
2274 arbitrary arguments instead of just a string.
2275 Change the key loaders to take a UI_METHOD instead of a callback
2276 function pointer. NOTE: this breaks binary compatibility with earlier
2277 versions of OpenSSL [engine].
2278 Adapt the nCipher code for these new conditions and add a card insertion
2282 *) Enhance the general user interface with mechanisms to better support
2283 dialog box interfaces, application-defined prompts, the possibility
2284 to use defaults (for example default passwords from somewhere else)
2285 and interrupts/cancellations.
2288 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2289 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2292 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2293 tidy up some unnecessarily weird code in 'sk_new()').
2294 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2296 *) Change the key loading routines for ENGINEs to use the same kind
2297 callback (pem_password_cb) as all other routines that need this
2301 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2302 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2303 than this minimum value is recommended.
2306 *) New random seeder for OpenVMS, using the system process statistics
2307 that are easily reachable.
2310 *) Windows apparently can't transparently handle global
2311 variables defined in DLLs. Initialisations such as:
2313 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2315 wont compile. This is used by the any applications that need to
2316 declare their own ASN1 modules. This was fixed by adding the option
2317 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2318 needed for static libraries under Win32.
2321 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2322 setting of purpose and trust fields. New X509_STORE trust and
2323 purpose functions and tidy up setting in other SSL functions.
2326 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2327 structure. These are inherited by X509_STORE_CTX when it is
2328 initialised. This allows various defaults to be set in the
2329 X509_STORE structure (such as flags for CRL checking and custom
2330 purpose or trust settings) for functions which only use X509_STORE_CTX
2331 internally such as S/MIME.
2333 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2334 trust settings if they are not set in X509_STORE. This allows X509_STORE
2335 purposes and trust (in S/MIME for example) to override any set by default.
2337 Add command line options for CRL checking to smime, s_client and s_server
2341 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2342 are set then the CRL is looked up in the X509_STORE structure and
2343 its validity and signature checked, then if the certificate is found
2344 in the CRL the verify fails with a revoked error.
2346 Various new CRL related callbacks added to X509_STORE_CTX structure.
2348 Command line options added to 'verify' application to support this.
2350 This needs some additional work, such as being able to handle multiple
2351 CRLs with different times, extension based lookup (rather than just
2352 by subject name) and ultimately more complete V2 CRL extension
2356 *) Add a general user interface API (crypto/ui/). This is designed
2357 to replace things like des_read_password and friends (backward
2358 compatibility functions using this new API are provided).
2359 The purpose is to remove prompting functions from the DES code
2360 section as well as provide for prompting through dialog boxes in
2361 a window system and the like.
2364 *) Add "ex_data" support to ENGINE so implementations can add state at a
2365 per-structure level rather than having to store it globally.
2368 *) Make it possible for ENGINE structures to be copied when retrieved by
2369 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2370 This causes the "original" ENGINE structure to act like a template,
2371 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2372 operational state can be localised to each ENGINE structure, despite the
2373 fact they all share the same "methods". New ENGINE structures returned in
2374 this case have no functional references and the return value is the single
2375 structural reference. This matches the single structural reference returned
2376 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2380 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2381 needs to match any other type at all we need to manually clear the
2385 *) Changes to the "openssl engine" utility to include;
2386 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2387 about an ENGINE's available control commands.
2388 - executing control commands from command line arguments using the
2389 '-pre' and '-post' switches. '-post' is only used if '-t' is
2390 specified and the ENGINE is successfully initialised. The syntax for
2391 the individual commands are colon-separated, for example;
2392 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2395 *) New dynamic control command support for ENGINEs. ENGINEs can now
2396 declare their own commands (numbers), names (strings), descriptions,
2397 and input types for run-time discovery by calling applications. A
2398 subset of these commands are implicitly classed as "executable"
2399 depending on their input type, and only these can be invoked through
2400 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2401 can be based on user input, config files, etc). The distinction is
2402 that "executable" commands cannot return anything other than a boolean
2403 result and can only support numeric or string input, whereas some
2404 discoverable commands may only be for direct use through
2405 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2406 pointers, or other custom uses. The "executable" commands are to
2407 support parameterisations of ENGINE behaviour that can be
2408 unambiguously defined by ENGINEs and used consistently across any
2409 OpenSSL-based application. Commands have been added to all the
2410 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2411 control over shared-library paths without source code alterations.
2414 *) Changed all ENGINE implementations to dynamically allocate their
2415 ENGINEs rather than declaring them statically. Apart from this being
2416 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2417 this also allows the implementations to compile without using the
2418 internal engine_int.h header.
2421 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2422 'const' value. Any code that should be able to modify a RAND_METHOD
2423 should already have non-const pointers to it (ie. they should only
2424 modify their own ones).
2427 *) Made a variety of little tweaks to the ENGINE code.
2428 - "atalla" and "ubsec" string definitions were moved from header files
2429 to C code. "nuron" string definitions were placed in variables
2430 rather than hard-coded - allowing parameterisation of these values
2431 later on via ctrl() commands.
2432 - Removed unused "#if 0"'d code.
2433 - Fixed engine list iteration code so it uses ENGINE_free() to release
2434 structural references.
2435 - Constified the RAND_METHOD element of ENGINE structures.
2436 - Constified various get/set functions as appropriate and added
2437 missing functions (including a catch-all ENGINE_cpy that duplicates
2438 all ENGINE values onto a new ENGINE except reference counts/state).
2439 - Removed NULL parameter checks in get/set functions. Setting a method
2440 or function to NULL is a way of cancelling out a previously set
2441 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2442 and doesn't justify the extra error symbols and code.
2443 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2444 flags from engine_int.h to engine.h.
2445 - Changed prototypes for ENGINE handler functions (init(), finish(),
2446 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2449 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2450 to the algorithm using long division. The binary algorithm can be
2451 used only if the modulus is odd. On 32-bit systems, it is faster
2452 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2453 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2454 up to 450 bits. In 64-bit environments, the binary algorithm
2455 appears to be advantageous for much longer moduli; here we use it
2456 for moduli up to 2048 bits.
2459 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2460 could not support the combine flag in choice fields.
2463 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2464 extensions from a certificate request to the certificate.
2467 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2468 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2469 file: this allows the display of the certificate about to be
2470 signed to be customised, to allow certain fields to be included
2471 or excluded and extension details. The old system didn't display
2472 multicharacter strings properly, omitted fields not in the policy
2473 and couldn't display additional details such as extensions.
2476 *) Function EC_POINTs_mul for multiple scalar multiplication
2477 of an arbitrary number of elliptic curve points
2478 \sum scalars[i]*points[i],
2479 optionally including the generator defined for the EC_GROUP:
2480 scalar*generator + \sum scalars[i]*points[i].
2482 EC_POINT_mul is a simple wrapper function for the typical case
2483 that the point list has just one item (besides the optional
2487 *) First EC_METHODs for curves over GF(p):
2489 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2490 operations and provides various method functions that can also
2491 operate with faster implementations of modular arithmetic.
2493 EC_GFp_mont_method() reuses most functions that are part of
2494 EC_GFp_simple_method, but uses Montgomery arithmetic.
2496 [Bodo Moeller; point addition and point doubling
2497 implementation directly derived from source code provided by
2498 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2500 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2501 crypto/ec/ec_lib.c):
2503 Curves are EC_GROUP objects (with an optional group generator)
2504 based on EC_METHODs that are built into the library.
2506 Points are EC_POINT objects based on EC_GROUP objects.
2508 Most of the framework would be able to handle curves over arbitrary
2509 finite fields, but as there are no obvious types for fields other
2510 than GF(p), some functions are limited to that for now.
2513 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2514 that the file contains a complete HTTP response.
2517 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2518 change the def and num file printf format specifier from "%-40sXXX"
2519 to "%-39s XXX". The latter will always guarantee a space after the
2520 field while the former will cause them to run together if the field
2521 is 40 of more characters long.
2524 *) Constify the cipher and digest 'method' functions and structures
2525 and modify related functions to take constant EVP_MD and EVP_CIPHER
2529 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2530 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2533 *) Modify EVP_Digest*() routines so they now return values. Although the
2534 internal software routines can never fail additional hardware versions
2538 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2540 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2541 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2544 ERR_R_NESTED_ASN1_ERROR
2546 ERR_R_MISSING_ASN1_EOS
2547 were 4 .. 9, conflicting with
2548 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2550 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2551 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2553 Add new error code 'ERR_R_INTERNAL_ERROR'.
2556 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2560 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2561 sets the subject name for a new request or supersedes the
2562 subject name in a given request. Formats that can be parsed are
2563 'CN=Some Name, OU=myOU, C=IT'
2565 'CN=Some Name/OU=myOU/C=IT'.
2567 Add options '-batch' and '-verbose' to 'openssl req'.
2568 [Massimiliano Pala <madwolf@hackmasters.net>]
2570 *) Introduce the possibility to access global variables through
2571 functions on platform were that's the best way to handle exporting
2572 global variables in shared libraries. To enable this functionality,
2573 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2574 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2575 is normally done by Configure or something similar).
2577 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2578 in the source file (foo.c) like this:
2580 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2581 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2583 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2584 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2586 OPENSSL_DECLARE_GLOBAL(int,foo);
2587 #define foo OPENSSL_GLOBAL_REF(foo)
2588 OPENSSL_DECLARE_GLOBAL(double,bar);
2589 #define bar OPENSSL_GLOBAL_REF(bar)
2591 The #defines are very important, and therefore so is including the
2592 header file everywhere where the defined globals are used.
2594 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2595 of ASN.1 items, but that structure is a bit different.
2597 The largest change is in util/mkdef.pl which has been enhanced with
2598 better and easier to understand logic to choose which symbols should
2599 go into the Windows .def files as well as a number of fixes and code
2600 cleanup (among others, algorithm keywords are now sorted
2601 lexicographically to avoid constant rewrites).
2604 *) In BN_div() keep a copy of the sign of 'num' before writing the
2605 result to 'rm' because if rm==num the value will be overwritten
2606 and produce the wrong result if 'num' is negative: this caused
2607 problems with BN_mod() and BN_nnmod().
2610 *) Function OCSP_request_verify(). This checks the signature on an
2611 OCSP request and verifies the signer certificate. The signer
2612 certificate is just checked for a generic purpose and OCSP request
2616 *) Add OCSP_check_validity() function to check the validity of OCSP
2617 responses. OCSP responses are prepared in real time and may only
2618 be a few seconds old. Simply checking that the current time lies
2619 between thisUpdate and nextUpdate max reject otherwise valid responses
2620 caused by either OCSP responder or client clock inaccuracy. Instead
2621 we allow thisUpdate and nextUpdate to fall within a certain period of
2622 the current time. The age of the response can also optionally be
2623 checked. Two new options -validity_period and -status_age added to
2627 *) If signature or public key algorithm is unrecognized print out its
2628 OID rather that just UNKNOWN.
2631 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2632 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2633 ID to be generated from the issuer certificate alone which can then be
2634 passed to OCSP_id_issuer_cmp().
2637 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
2638 ASN1 modules to export functions returning ASN1_ITEM pointers
2639 instead of the ASN1_ITEM structures themselves. This adds several
2640 new macros which allow the underlying ASN1 function/structure to
2641 be accessed transparently. As a result code should not use ASN1_ITEM
2642 references directly (such as &X509_it) but instead use the relevant
2643 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
2644 use of the new ASN1 code on platforms where exporting structures
2645 is problematical (for example in shared libraries) but exporting
2646 functions returning pointers to structures is not.
2649 *) Add support for overriding the generation of SSL/TLS session IDs.
2650 These callbacks can be registered either in an SSL_CTX or per SSL.
2651 The purpose of this is to allow applications to control, if they wish,
2652 the arbitrary values chosen for use as session IDs, particularly as it
2653 can be useful for session caching in multiple-server environments. A
2654 command-line switch for testing this (and any client code that wishes
2655 to use such a feature) has been added to "s_server".
2656 [Geoff Thorpe, Lutz Jaenicke]
2658 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
2659 of the form '#if defined(...) || defined(...) || ...' and
2660 '#if !defined(...) && !defined(...) && ...'. This also avoids
2661 the growing number of special cases it was previously handling.
2664 *) Make all configuration macros available for application by making
2665 sure they are available in opensslconf.h, by giving them names starting
2666 with "OPENSSL_" to avoid conflicts with other packages and by making
2667 sure e_os2.h will cover all platform-specific cases together with
2669 Additionally, it is now possible to define configuration/platform-
2670 specific names (called "system identities"). In the C code, these
2671 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
2672 macro with the name beginning with "OPENSSL_SYS_", which is determined
2673 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
2677 *) New option -set_serial to 'req' and 'x509' this allows the serial
2678 number to use to be specified on the command line. Previously self
2679 signed certificates were hard coded with serial number 0 and the
2680 CA options of 'x509' had to use a serial number in a file which was
2684 *) New options to 'ca' utility to support V2 CRL entry extensions.
2685 Currently CRL reason, invalidity date and hold instruction are
2686 supported. Add new CRL extensions to V3 code and some new objects.
2689 *) New function EVP_CIPHER_CTX_set_padding() this is used to
2690 disable standard block padding (aka PKCS#5 padding) in the EVP
2691 API, which was previously mandatory. This means that the data is
2692 not padded in any way and so the total length much be a multiple
2693 of the block size, otherwise an error occurs.
2696 *) Initial (incomplete) OCSP SSL support.
2699 *) New function OCSP_parse_url(). This splits up a URL into its host,
2700 port and path components: primarily to parse OCSP URLs. New -url
2701 option to ocsp utility.
2704 *) New nonce behavior. The return value of OCSP_check_nonce() now
2705 reflects the various checks performed. Applications can decide
2706 whether to tolerate certain situations such as an absent nonce
2707 in a response when one was present in a request: the ocsp application
2708 just prints out a warning. New function OCSP_add1_basic_nonce()
2709 this is to allow responders to include a nonce in a response even if
2710 the request is nonce-less.
2713 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
2714 skipped when using openssl x509 multiple times on a single input file,
2715 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
2718 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
2719 set string type: to handle setting ASN1_TIME structures. Fix ca
2720 utility to correctly initialize revocation date of CRLs.
2723 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
2724 the clients preferred ciphersuites and rather use its own preferences.
2725 Should help to work around M$ SGC (Server Gated Cryptography) bug in
2726 Internet Explorer by ensuring unchanged hash method during stepup.
2727 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
2730 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
2731 to aes and add a new 'exist' option to print out symbols that don't
2735 *) Additional options to ocsp utility to allow flags to be set and
2736 additional certificates supplied.
2739 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
2740 OCSP client a number of certificate to only verify the response
2744 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
2745 handle the new API. Currently only ECB, CBC modes supported. Add new
2748 Add TLS AES ciphersuites as described in RFC3268, "Advanced
2749 Encryption Standard (AES) Ciphersuites for Transport Layer
2750 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
2751 not enabled by default and were not part of the "ALL" ciphersuite
2752 alias because they were not yet official; they could be
2753 explicitly requested by specifying the "AESdraft" ciphersuite
2754 group alias. In the final release of OpenSSL 0.9.7, the group
2755 alias is called "AES" and is part of "ALL".)
2756 [Ben Laurie, Steve Henson, Bodo Moeller]
2758 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
2759 request to response.
2762 *) Functions for OCSP responders. OCSP_request_onereq_count(),
2763 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
2764 extract information from a certificate request. OCSP_response_create()
2765 creates a response and optionally adds a basic response structure.
2766 OCSP_basic_add1_status() adds a complete single response to a basic
2767 response and returns the OCSP_SINGLERESP structure just added (to allow
2768 extensions to be included for example). OCSP_basic_add1_cert() adds a
2769 certificate to a basic response and OCSP_basic_sign() signs a basic
2770 response with various flags. New helper functions ASN1_TIME_check()
2771 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
2772 (converts ASN1_TIME to GeneralizedTime).
2775 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
2776 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
2777 structure from a certificate. X509_pubkey_digest() digests the public_key
2778 contents: this is used in various key identifiers.
2781 *) Make sk_sort() tolerate a NULL argument.
2782 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
2784 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
2785 passed by the function are trusted implicitly. If any of them signed the
2786 response then it is assumed to be valid and is not verified.
2789 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
2790 to data. This was previously part of the PKCS7 ASN1 code. This
2791 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
2792 [Steve Henson, reported by Kenneth R. Robinette
2793 <support@securenetterm.com>]
2795 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
2796 routines: without these tracing memory leaks is very painful.
2797 Fix leaks in PKCS12 and PKCS7 routines.
2800 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
2801 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
2802 effectively meant GeneralizedTime would never be used. Now it
2803 is initialised to -1 but X509_time_adj() now has to check the value
2804 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
2805 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
2806 [Steve Henson, reported by Kenneth R. Robinette
2807 <support@securenetterm.com>]
2809 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
2810 result in a zero length in the ASN1_INTEGER structure which was
2811 not consistent with the structure when d2i_ASN1_INTEGER() was used
2812 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
2813 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
2814 where it did not print out a minus for negative ASN1_INTEGER.
2817 *) Add summary printout to ocsp utility. The various functions which
2818 convert status values to strings have been renamed to:
2819 OCSP_response_status_str(), OCSP_cert_status_str() and
2820 OCSP_crl_reason_str() and are no longer static. New options
2821 to verify nonce values and to disable verification. OCSP response
2822 printout format cleaned up.
2825 *) Add additional OCSP certificate checks. These are those specified
2826 in RFC2560. This consists of two separate checks: the CA of the
2827 certificate being checked must either be the OCSP signer certificate
2828 or the issuer of the OCSP signer certificate. In the latter case the
2829 OCSP signer certificate must contain the OCSP signing extended key
2830 usage. This check is performed by attempting to match the OCSP
2831 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
2832 in the OCSP_CERTID structures of the response.
2835 *) Initial OCSP certificate verification added to OCSP_basic_verify()
2836 and related routines. This uses the standard OpenSSL certificate
2837 verify routines to perform initial checks (just CA validity) and
2838 to obtain the certificate chain. Then additional checks will be
2839 performed on the chain. Currently the root CA is checked to see
2840 if it is explicitly trusted for OCSP signing. This is used to set
2841 a root CA as a global signing root: that is any certificate that
2842 chains to that CA is an acceptable OCSP signing certificate.
2845 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
2846 extensions from a separate configuration file.
2847 As when reading extensions from the main configuration file,
2848 the '-extensions ...' option may be used for specifying the
2850 [Massimiliano Pala <madwolf@comune.modena.it>]
2852 *) New OCSP utility. Allows OCSP requests to be generated or
2853 read. The request can be sent to a responder and the output
2854 parsed, outputed or printed in text form. Not complete yet:
2855 still needs to check the OCSP response validity.
2858 *) New subcommands for 'openssl ca':
2859 'openssl ca -status <serial>' prints the status of the cert with
2860 the given serial number (according to the index file).
2861 'openssl ca -updatedb' updates the expiry status of certificates
2863 [Massimiliano Pala <madwolf@comune.modena.it>]
2865 *) New '-newreq-nodes' command option to CA.pl. This is like
2866 '-newreq', but calls 'openssl req' with the '-nodes' option
2867 so that the resulting key is not encrypted.
2868 [Damien Miller <djm@mindrot.org>]
2870 *) New configuration for the GNU Hurd.
2871 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
2873 *) Initial code to implement OCSP basic response verify. This
2874 is currently incomplete. Currently just finds the signer's
2875 certificate and verifies the signature on the response.
2878 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
2879 value of OPENSSLDIR. This is available via the new '-d' option
2880 to 'openssl version', and is also included in 'openssl version -a'.
2883 *) Allowing defining memory allocation callbacks that will be given
2884 file name and line number information in additional arguments
2885 (a const char* and an int). The basic functionality remains, as
2886 well as the original possibility to just replace malloc(),
2887 realloc() and free() by functions that do not know about these
2888 additional arguments. To register and find out the current
2889 settings for extended allocation functions, the following
2890 functions are provided:
2892 CRYPTO_set_mem_ex_functions
2893 CRYPTO_set_locked_mem_ex_functions
2894 CRYPTO_get_mem_ex_functions
2895 CRYPTO_get_locked_mem_ex_functions
2897 These work the same way as CRYPTO_set_mem_functions and friends.
2898 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
2899 extended allocation function is enabled.
2900 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
2901 a conventional allocation function is enabled.
2902 [Richard Levitte, Bodo Moeller]
2904 *) Finish off removing the remaining LHASH function pointer casts.
2905 There should no longer be any prototype-casting required when using
2906 the LHASH abstraction, and any casts that remain are "bugs". See
2907 the callback types and macros at the head of lhash.h for details
2908 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
2911 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
2912 If /dev/[u]random devices are not available or do not return enough
2913 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
2915 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
2916 /etc/entropy will be queried once each in this sequence, quering stops
2917 when enough entropy was collected without querying more sockets.
2920 *) Change the Unix RAND_poll() variant to be able to poll several
2921 random devices, as specified by DEVRANDOM, until a sufficient amount
2922 of data has been collected. We spend at most 10 ms on each file
2923 (select timeout) and read in non-blocking mode. DEVRANDOM now
2924 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
2925 (previously it was just the string "/dev/urandom"), so on typical
2926 platforms the 10 ms delay will never occur.
2927 Also separate out the Unix variant to its own file, rand_unix.c.
2928 For VMS, there's a currently-empty rand_vms.c.
2931 *) Move OCSP client related routines to ocsp_cl.c. These
2932 provide utility functions which an application needing
2933 to issue a request to an OCSP responder and analyse the
2934 response will typically need: as opposed to those which an
2935 OCSP responder itself would need which will be added later.
2937 OCSP_request_sign() signs an OCSP request with an API similar
2938 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
2939 response. OCSP_response_get1_basic() extracts basic response
2940 from response. OCSP_resp_find_status(): finds and extracts status
2941 information from an OCSP_CERTID structure (which will be created
2942 when the request structure is built). These are built from lower
2943 level functions which work on OCSP_SINGLERESP structures but
2944 wont normally be used unless the application wishes to examine
2945 extensions in the OCSP response for example.
2947 Replace nonce routines with a pair of functions.
2948 OCSP_request_add1_nonce() adds a nonce value and optionally
2949 generates a random value. OCSP_check_nonce() checks the
2950 validity of the nonce in an OCSP response.
2953 *) Change function OCSP_request_add() to OCSP_request_add0_id().
2954 This doesn't copy the supplied OCSP_CERTID and avoids the
2955 need to free up the newly created id. Change return type
2956 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
2957 This can then be used to add extensions to the request.
2958 Deleted OCSP_request_new(), since most of its functionality
2959 is now in OCSP_REQUEST_new() (and the case insensitive name
2960 clash) apart from the ability to set the request name which
2961 will be added elsewhere.
2964 *) Update OCSP API. Remove obsolete extensions argument from
2965 various functions. Extensions are now handled using the new
2966 OCSP extension code. New simple OCSP HTTP function which
2967 can be used to send requests and parse the response.
2970 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
2971 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
2972 uses the special reorder version of SET OF to sort the attributes
2973 and reorder them to match the encoded order. This resolves a long
2974 standing problem: a verify on a PKCS7 structure just after signing
2975 it used to fail because the attribute order did not match the
2976 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
2977 it uses the received order. This is necessary to tolerate some broken
2978 software that does not order SET OF. This is handled by encoding
2979 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
2980 to produce the required SET OF.
2983 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
2984 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
2985 files to get correct declarations of the ASN.1 item variables.
2988 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
2989 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
2990 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
2991 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
2992 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
2993 ASN1_ITEM and no wrapper functions.
2996 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
2997 replace the old function pointer based I/O routines. Change most of
2998 the *_d2i_bio() and *_d2i_fp() functions to use these.
3001 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3002 lines, recognice more "algorithms" that can be deselected, and make
3003 it complain about algorithm deselection that isn't recognised.
3006 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3007 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3008 to use new functions. Add NO_ASN1_OLD which can be set to remove
3009 some old style ASN1 functions: this can be used to determine if old
3010 code will still work when these eventually go away.
3013 *) New extension functions for OCSP structures, these follow the
3014 same conventions as certificates and CRLs.
3017 *) New function X509V3_add1_i2d(). This automatically encodes and
3018 adds an extension. Its behaviour can be customised with various
3019 flags to append, replace or delete. Various wrappers added for
3020 certifcates and CRLs.
3023 *) Fix to avoid calling the underlying ASN1 print routine when
3024 an extension cannot be parsed. Correct a typo in the
3025 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3028 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3029 entries for variables.
3032 *) Add functionality to apps/openssl.c for detecting locking
3033 problems: As the program is single-threaded, all we have
3034 to do is register a locking callback using an array for
3035 storing which locks are currently held by the program.
3038 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3039 SSL_get_ex_data_X509_STORE_idx(), which is used in
3040 ssl_verify_cert_chain() and thus can be called at any time
3041 during TLS/SSL handshakes so that thread-safety is essential.
3042 Unfortunately, the ex_data design is not at all suited
3043 for multi-threaded use, so it probably should be abolished.
3046 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3047 [Broadcom, tweaked and integrated by Geoff Thorpe]
3049 *) Move common extension printing code to new function
3050 X509V3_print_extensions(). Reorganise OCSP print routines and
3051 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3054 *) New function X509_signature_print() to remove duplication in some
3058 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3059 set (this was treated exactly the same as SET OF previously). This
3060 is used to reorder the STACK representing the structure to match the
3061 encoding. This will be used to get round a problem where a PKCS7
3062 structure which was signed could not be verified because the STACK
3063 order did not reflect the encoded order.
3066 *) Reimplement the OCSP ASN1 module using the new code.
3069 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3070 for its ASN1 operations. The old style function pointers still exist
3071 for now but they will eventually go away.
3074 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3075 completely replaces the old ASN1 functionality with a table driven
3076 encoder and decoder which interprets an ASN1_ITEM structure describing
3077 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3078 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3079 has also been converted to the new form.
3082 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3083 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3084 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3085 for negative moduli.
3088 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3089 of not touching the result's sign bit.
3092 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3096 *) Changed the LHASH code to use prototypes for callbacks, and created
3097 macros to declare and implement thin (optionally static) functions
3098 that provide type-safety and avoid function pointer casting for the
3099 type-specific callbacks.
3102 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3104 [Veers Staats <staatsvr@asc.hpc.mil>,
3105 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3107 *) Reformat the FAQ so the different questions and answers can be divided
3108 in sections depending on the subject.
3111 *) Have the zlib compression code load ZLIB.DLL dynamically under
3115 *) New function BN_mod_sqrt for computing square roots modulo a prime
3116 (using the probabilistic Tonelli-Shanks algorithm unless
3117 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3118 be handled deterministically).
3119 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3121 *) Make BN_mod_inverse faster by explicitly handling small quotients
3122 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3123 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3126 *) New function BN_kronecker.
3129 *) Fix BN_gcd so that it works on negative inputs; the result is
3130 positive unless both parameters are zero.
3131 Previously something reasonably close to an infinite loop was
3132 possible because numbers could be growing instead of shrinking
3133 in the implementation of Euclid's algorithm.
3136 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3137 sign of the number in question.
3139 Fix BN_is_word(a,w) to work correctly for w == 0.
3141 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3142 because its test if the absolute value of 'a' equals 'w'.
3143 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3144 it exists mostly for use in the implementations of BN_is_zero(),
3145 BN_is_one(), and BN_is_word().
3148 *) New function BN_swap.
3151 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3152 the exponentiation functions are more likely to produce reasonable
3153 results on negative inputs.
3156 *) Change BN_mod_mul so that the result is always non-negative.
3157 Previously, it could be negative if one of the factors was negative;
3158 I don't think anyone really wanted that behaviour.
3161 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3162 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3163 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3164 and add new functions:
3173 BN_mod_lshift1_quick
3177 These functions always generate non-negative results.
3179 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3180 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3182 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3183 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3184 be reduced modulo m.
3185 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3188 The following entry accidentily appeared in the CHANGES file
3189 distributed with OpenSSL 0.9.7. The modifications described in
3190 it do *not* apply to OpenSSL 0.9.7.
3192 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3193 was actually never needed) and in BN_mul(). The removal in BN_mul()
3194 required a small change in bn_mul_part_recursive() and the addition
3195 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3196 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3197 bn_sub_words() and bn_add_words() except they take arrays with
3202 *) In 'openssl passwd', verify passwords read from the terminal
3203 unless the '-salt' option is used (which usually means that
3204 verification would just waste user's time since the resulting
3205 hash is going to be compared with some given password hash)
3206 or the new '-noverify' option is used.
3208 This is an incompatible change, but it does not affect
3209 non-interactive use of 'openssl passwd' (passwords on the command
3210 line, '-stdin' option, '-in ...' option) and thus should not
3214 *) Remove all references to RSAref, since there's no more need for it.
3217 *) Make DSO load along a path given through an environment variable
3218 (SHLIB_PATH) with shl_load().
3221 *) Constify the ENGINE code as a result of BIGNUM constification.
3222 Also constify the RSA code and most things related to it. In a
3223 few places, most notable in the depth of the ASN.1 code, ugly
3224 casts back to non-const were required (to be solved at a later
3228 *) Make it so the openssl application has all engines loaded by default.
3231 *) Constify the BIGNUM routines a little more.
3234 *) Add the following functions:
3236 ENGINE_load_cswift()
3238 ENGINE_load_atalla()
3240 ENGINE_load_builtin_engines()
3242 That way, an application can itself choose if external engines that
3243 are built-in in OpenSSL shall ever be used or not. The benefit is
3244 that applications won't have to be linked with libdl or other dso
3245 libraries unless it's really needed.
3247 Changed 'openssl engine' to load all engines on demand.
3248 Changed the engine header files to avoid the duplication of some
3249 declarations (they differed!).
3252 *) 'openssl engine' can now list capabilities.
3255 *) Better error reporting in 'openssl engine'.
3258 *) Never call load_dh_param(NULL) in s_server.
3261 *) Add engine application. It can currently list engines by name and
3262 identity, and test if they are actually available.
3265 *) Improve RPM specification file by forcing symbolic linking and making
3266 sure the installed documentation is also owned by root.root.
3267 [Damien Miller <djm@mindrot.org>]
3269 *) Give the OpenSSL applications more possibilities to make use of
3270 keys (public as well as private) handled by engines.
3273 *) Add OCSP code that comes from CertCo.
3276 *) Add VMS support for the Rijndael code.
3279 *) Added untested support for Nuron crypto accelerator.
3282 *) Add support for external cryptographic devices. This code was
3283 previously distributed separately as the "engine" branch.
3284 [Geoff Thorpe, Richard Levitte]
3286 *) Rework the filename-translation in the DSO code. It is now possible to
3287 have far greater control over how a "name" is turned into a filename
3288 depending on the operating environment and any oddities about the
3289 different shared library filenames on each system.
3292 *) Support threads on FreeBSD-elf in Configure.
3295 *) Fix for SHA1 assembly problem with MASM: it produces
3296 warnings about corrupt line number information when assembling
3297 with debugging information. This is caused by the overlapping
3299 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3302 NCONF_get_number() has no error checking at all. As a replacement,
3303 NCONF_get_number_e() is defined (_e for "error checking") and is
3304 promoted strongly. The old NCONF_get_number is kept around for
3305 binary backward compatibility.
3306 Make it possible for methods to load from something other than a BIO,
3307 by providing a function pointer that is given a name instead of a BIO.
3308 For example, this could be used to load configuration data from an
3312 *) Fix for non blocking accept BIOs. Added new I/O special reason
3313 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3314 with non blocking I/O was not possible because no retry code was
3315 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3319 *) Added the beginnings of Rijndael support.
3322 *) Fix for bug in DirectoryString mask setting. Add support for
3323 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3324 to allow certificate printing to more controllable, additional
3325 'certopt' option to 'x509' to allow new printing options to be
3329 *) Clean old EAY MD5 hack from e_os.h.
3332 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3334 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3335 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3336 [Joe Orton, Steve Henson]
3338 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3340 *) Fix additional bug revealed by the NISCC test suite:
3342 Stop bug triggering large recursion when presented with
3343 certain ASN.1 tags (CVE-2003-0851)
3346 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3348 *) Fix various bugs revealed by running the NISCC test suite:
3350 Stop out of bounds reads in the ASN1 code when presented with
3351 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3353 If verify callback ignores invalid public key errors don't try to check
3354 certificate signature with the NULL public key.
3358 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3359 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3363 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3364 extra data after the compression methods not only for TLS 1.0
3365 but also for SSL 3.0 (as required by the specification).
3366 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3368 *) Change X509_certificate_type() to mark the key as exported/exportable
3369 when it's 512 *bits* long, not 512 bytes.
3372 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3374 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3375 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3376 a protocol version number mismatch like a decryption error
3377 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3380 *) Turn on RSA blinding by default in the default implementation
3381 to avoid a timing attack. Applications that don't want it can call
3382 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3383 They would be ill-advised to do so in most cases.
3384 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3386 *) Change RSA blinding code so that it works when the PRNG is not
3387 seeded (in this case, the secret RSA exponent is abused as
3388 an unpredictable seed -- if it is not unpredictable, there
3389 is no point in blinding anyway). Make RSA blinding thread-safe
3390 by remembering the creator's thread ID in rsa->blinding and
3391 having all other threads use local one-time blinding factors
3392 (this requires more computation than sharing rsa->blinding, but
3393 avoids excessive locking; and if an RSA object is not shared
3394 between threads, blinding will still be very fast).
3397 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3399 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3400 via timing by performing a MAC computation even if incorrrect
3401 block cipher padding has been found. This is a countermeasure
3402 against active attacks where the attacker has to distinguish
3403 between bad padding and a MAC verification error. (CVE-2003-0078)
3405 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3406 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3407 Martin Vuagnoux (EPFL, Ilion)]
3409 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3411 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3412 memory from it's contents. This is done with a counter that will
3413 place alternating values in each byte. This can be used to solve
3414 two issues: 1) the removal of calls to memset() by highly optimizing
3415 compilers, and 2) cleansing with other values than 0, since those can
3416 be read through on certain media, for example a swap space on disk.
3419 *) Bugfix: client side session caching did not work with external caching,
3420 because the session->cipher setting was not restored when reloading
3421 from the external cache. This problem was masked, when
3422 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3423 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3426 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3427 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3428 [Zeev Lieber <zeev-l@yahoo.com>]
3430 *) Undo an undocumented change introduced in 0.9.6e which caused
3431 repeated calls to OpenSSL_add_all_ciphers() and
3432 OpenSSL_add_all_digests() to be ignored, even after calling
3436 *) Change the default configuration reader to deal with last line not
3437 being properly terminated.
3440 *) Change X509_NAME_cmp() so it applies the special rules on handling
3441 DN values that are of type PrintableString, as well as RDNs of type
3442 emailAddress where the value has the type ia5String.
3443 [stefank@valicert.com via Richard Levitte]
3445 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3446 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3447 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3448 the bitwise-OR of the two for use by the majority of applications
3449 wanting this behaviour, and update the docs. The documented
3450 behaviour and actual behaviour were inconsistent and had been
3451 changing anyway, so this is more a bug-fix than a behavioural
3453 [Geoff Thorpe, diagnosed by Nadav Har'El]
3455 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3456 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3459 *) Fix initialization code race conditions in
3460 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3461 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3462 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3463 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3464 ssl2_get_cipher_by_char(),
3465 ssl3_get_cipher_by_char().
3466 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3468 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3469 the cached sessions are flushed, as the remove_cb() might use ex_data
3470 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3471 (see [openssl.org #212]).
3472 [Geoff Thorpe, Lutz Jaenicke]
3474 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3475 length, instead of the encoding length to d2i_ASN1_OBJECT.
3478 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3480 *) [In 0.9.6g-engine release:]
3481 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3482 [Lynn Gazis <lgazis@rainbow.com>]
3484 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3486 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3487 and get fix the header length calculation.
3488 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3489 Alon Kantor <alonk@checkpoint.com> (and others),
3492 *) Use proper error handling instead of 'assertions' in buffer
3493 overflow checks added in 0.9.6e. This prevents DoS (the
3494 assertions could call abort()).
3495 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3497 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3499 *) Add various sanity checks to asn1_get_length() to reject
3500 the ASN1 length bytes if they exceed sizeof(long), will appear
3501 negative or the content length exceeds the length of the
3503 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3505 *) Fix cipher selection routines: ciphers without encryption had no flags
3506 for the cipher strength set and where therefore not handled correctly
3507 by the selection routines (PR #130).
3510 *) Fix EVP_dsa_sha macro.
3514 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3515 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3516 that was added in OpenSSL 0.9.6d.
3518 As the countermeasure turned out to be incompatible with some
3519 broken SSL implementations, the new option is part of SSL_OP_ALL.
3520 SSL_OP_ALL is usually employed when compatibility with weird SSL
3521 implementations is desired (e.g. '-bugs' option to 's_client' and
3522 's_server'), so the new option is automatically set in many
3526 *) Changes in security patch:
3528 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3529 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3530 Air Force Materiel Command, USAF, under agreement number
3533 *) Add various sanity checks to asn1_get_length() to reject
3534 the ASN1 length bytes if they exceed sizeof(long), will appear
3535 negative or the content length exceeds the length of the
3536 supplied buffer. (CVE-2002-0659)
3537 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3539 *) Assertions for various potential buffer overflows, not known to
3541 [Ben Laurie (CHATS)]
3543 *) Various temporary buffers to hold ASCII versions of integers were
3544 too small for 64 bit platforms. (CVE-2002-0655)
3545 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3547 *) Remote buffer overflow in SSL3 protocol - an attacker could
3548 supply an oversized session ID to a client. (CVE-2002-0656)
3549 [Ben Laurie (CHATS)]
3551 *) Remote buffer overflow in SSL2 protocol - an attacker could
3552 supply an oversized client master key. (CVE-2002-0656)
3553 [Ben Laurie (CHATS)]
3555 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3557 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3558 encoded as NULL) with id-dsa-with-sha1.
3559 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3561 *) Check various X509_...() return values in apps/req.c.
3562 [Nils Larsch <nla@trustcenter.de>]
3564 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3565 an end-of-file condition would erronously be flagged, when the CRLF
3566 was just at the end of a processed block. The bug was discovered when
3567 processing data through a buffering memory BIO handing the data to a
3568 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3569 <ptsekov@syntrex.com> and Nedelcho Stanev.
3572 *) Implement a countermeasure against a vulnerability recently found
3573 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3574 before application data chunks to avoid the use of known IVs
3575 with data potentially chosen by the attacker.
3578 *) Fix length checks in ssl3_get_client_hello().
3581 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3582 to prevent ssl3_read_internal() from incorrectly assuming that
3583 ssl3_read_bytes() found application data while handshake
3584 processing was enabled when in fact s->s3->in_read_app_data was
3585 merely automatically cleared during the initial handshake.
3586 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3588 *) Fix object definitions for Private and Enterprise: they were not
3589 recognized in their shortname (=lowercase) representation. Extend
3590 obj_dat.pl to issue an error when using undefined keywords instead
3591 of silently ignoring the problem (Svenning Sorensen
3592 <sss@sss.dnsalias.net>).
projects / openssl.git / blob