5 Changes between 0.9.8a and 0.9.9 [xx XXX xxxx]
7 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
8 public and private key formats. As a side effect these add additional
9 command line functionality not previously available: DSA signatures can be
10 generated and verified using pkeyutl and DH key support and generation in
15 [Oliver Tappe <zooey@hirschkaefer.de>]
17 *) New make target "install_html_docs" installs HTML renditions of the
19 [Oliver Tappe <zooey@hirschkaefer.de>]
21 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
22 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
23 support key and parameter generation and add initial key generation
24 functionality for RSA.
27 *) Add functions for main EVP_PKEY_method operations. The undocumented
28 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
29 EVP_PKEY_{encrypt,decrypt}_old.
32 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
33 key API, doesn't do much yet.
36 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
37 public key algorithms. New option to openssl utility:
38 "list-public-key-algorithms" to print out info.
41 *) Implement the Supported Elliptic Curves Extension for
42 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
45 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
46 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
49 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
50 utilities such as rsa, dsa, dsaparam etc except they process any key
54 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
55 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
56 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
60 *) Initial support for pluggable public key ASN1.
61 De-spaghettify the public key ASN1 handling. Move public and private
62 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
63 algorithm specific handling to a single module within the relevant
64 algorithm directory. Add functions to allow (near) opaque processing
65 of public and private key structures.
68 *) Implement the Supported Point Formats Extension for
69 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
72 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
73 for the psk identity [hint] and the psk callback functions to the
74 SSL_SESSION, SSL and SSL_CTX structure.
77 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
81 SSL_CTX_use_psk_identity_hint
82 SSL_get_psk_identity_hint
84 SSL_use_psk_identity_hint
86 [Mika Kousa and Pasi Eronen of Nokia Corporation]
88 *) Add RFC 3161 compliant time stamp request creation, response generation
89 and response verification functionality.
90 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
92 *) Add initial support for TLS extensions, specifically for the server_name
93 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
94 have new members for a host name. The SSL data structure has an
95 additional member SSL_CTX *initial_ctx so that new sessions can be
96 stored in that context to allow for session resumption, even after the
97 SSL has been switched to a new SSL_CTX in reaction to a client's
98 server_name extension.
100 New functions (subject to change):
103 SSL_get_servername_type()
106 New CTRL codes and macros (subject to change):
108 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
109 - SSL_CTX_set_tlsext_servername_callback()
110 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
111 - SSL_CTX_set_tlsext_servername_arg()
112 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_hostname()
114 openssl s_client has a new '-servername ...' option.
116 openssl s_server has new options '-servername_host ...', '-cert2 ...',
117 '-key2 ...', '-servername_fatal' (subject to change). This allows
118 testing the HostName extension for a specific single host name ('-cert'
119 and '-key' remain fallbacks for handshakes without HostName
120 negotiation). If the unrecogninzed_name alert has to be sent, this by
121 default is a warning; it becomes fatal with the '-servername_fatal'
124 [Peter Sylvester, Remy Allais, Christophe Renou]
126 *) Whirlpool hash implementation is added.
129 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
130 bn(64,32). Because of instruction set limitations it doesn't have
131 any negative impact on performance. This was done mostly in order
132 to make it possible to share assembler modules, such as bn_mul_mont
133 implementations, between 32- and 64-bit builds without hassle.
136 *) Disable rogue ciphersuites:
138 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
139 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
140 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
142 The latter two were purportedly from
143 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
146 Other ciphersuites from draft-ietf-tls-56-bit-ciphersuites-01.txt
147 remain enabled for now, but are just as unofficial, and the ID
148 has long expired; these will probably disappear soon.
151 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
152 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
156 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
157 dedicated Montgomery multiplication procedure, is introduced.
158 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
159 "64-bit" performance on certain 32-bit targets.
162 *) New option SSL_OP_NO_COMP to disable use of compression selectively
163 in SSL structures. New SSL ctrl to set maximum send fragment size.
164 Save memory by seeting the I/O buffer sizes dynamically instead of
165 using the maximum available value.
168 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
169 in addition to the text details.
172 *) Very, very preliminary EXPERIMENTAL support for printing of general
173 ASN1 structures. This currently produces rather ugly output and doesn't
174 handle several customised structures at all.
177 *) Integrated support for PVK file format and some related formats such
178 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
179 these in the 'rsa' and 'dsa' utilities.
182 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
185 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
186 place for the (very old) "NETSCAPE" format certificates which are now
187 handled using new ASN1 code equivalents.
190 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
191 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
192 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
195 *) Modify CRL distribution points extension code to print out previously
196 unsupported fields. Enhance extension setting code to allow setting of
200 *) Add print and set support for Issuing Distribution Point CRL extension.
203 Changes between 0.9.8a and 0.9.8b [XX xxx XXXX]
205 *) Link in manifests for VC++ if needed.
206 [Austin Ziegler <halostatue@gmail.com>]
208 *) Update support for ECC-based TLS ciphersuites according to
209 draft-ietf-tls-ecc-12.txt with proposed changes (but without
210 TLS extensions, which are supported starting with the 0.9.9
211 branch, not in the OpenSSL 0.9.8 branch).
214 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
215 opaque EVP_CIPHER_CTX handling.
218 *) Fixes and enhancements to zlib compression code. We now only use
219 "zlib1.dll" and use the default __cdecl calling convention on Win32
220 to conform with the standards mentioned here:
221 http://www.zlib.net/DLL_FAQ.txt
222 Static zlib linking now works on Windows and the new --with-zlib-include
223 --with-zlib-lib options to Configure can be used to supply the location
224 of the headers and library. Gracefully handle case where zlib library
228 *) Several fixes and enhancements to the OID generation code. The old code
229 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
230 handle numbers larger than ULONG_MAX, truncated printing and had a
231 non standard OBJ_obj2txt() behaviour.
234 *) Add support for building of engines under engine/ as shared libraries
235 under VC++ build system.
238 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
239 Hopefully, we will not see any false combination of paths any more.
242 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
244 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
245 (part of SSL_OP_ALL). This option used to disable the
246 countermeasure against man-in-the-middle protocol-version
247 rollback in the SSL 2.0 server implementation, which is a bad
248 idea. (CVE-2005-2969)
250 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
251 for Information Security, National Institute of Advanced Industrial
252 Science and Technology [AIST], Japan)]
254 *) Add two function to clear and return the verify parameter flags.
257 *) Keep cipherlists sorted in the source instead of sorting them at
258 runtime, thus removing the need for a lock.
261 *) Avoid some small subgroup attacks in Diffie-Hellman.
262 [Nick Mathewson and Ben Laurie]
264 *) Add functions for well-known primes.
267 *) Extended Windows CE support.
268 [Satoshi Nakamura and Andy Polyakov]
270 *) Initialize SSL_METHOD structures at compile time instead of during
271 runtime, thus removing the need for a lock.
274 *) Make PKCS7_decrypt() work even if no certificate is supplied by
275 attempting to decrypt each encrypted key in turn. Add support to
279 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
281 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
284 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
285 key into the same file any more.
288 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
291 *) Add -utf8 command line and config file option to 'ca'.
292 [Stefan <stf@udoma.org]
294 *) Removed the macro des_crypt(), as it seems to conflict with some
295 libraries. Use DES_crypt().
298 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
299 involves renaming the source and generated shared-libs for
300 both. The engines will accept the corrected or legacy ids
301 ('ncipher' and '4758_cca' respectively) when binding. NB,
302 this only applies when building 'shared'.
303 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
305 *) Add attribute functions to EVP_PKEY structure. Modify
306 PKCS12_create() to recognize a CSP name attribute and
307 use it. Make -CSP option work again in pkcs12 utility.
310 *) Add new functionality to the bn blinding code:
311 - automatic re-creation of the BN_BLINDING parameters after
312 a fixed number of uses (currently 32)
313 - add new function for parameter creation
314 - introduce flags to control the update behaviour of the
315 BN_BLINDING parameters
316 - hide BN_BLINDING structure
317 Add a second BN_BLINDING slot to the RSA structure to improve
318 performance when a single RSA object is shared among several
322 *) Add support for DTLS.
323 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
325 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
326 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
329 *) Remove buggy and incompletet DH cert support from
330 ssl/ssl_rsa.c and ssl/s3_both.c
333 *) Use SHA-1 instead of MD5 as the default digest algorithm for
334 the apps/openssl applications.
337 *) Compile clean with "-Wall -Wmissing-prototypes
338 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
339 DEBUG_SAFESTACK must also be set.
342 *) Change ./Configure so that certain algorithms can be disabled by default.
343 The new counterpiece to "no-xxx" is "enable-xxx".
345 The patented RC5 and MDC2 algorithms will now be disabled unless
346 "enable-rc5" and "enable-mdc2", respectively, are specified.
348 (IDEA remains enabled despite being patented. This is because IDEA
349 is frequently required for interoperability, and there is no license
350 fee for non-commercial use. As before, "no-idea" can be used to
351 avoid this algorithm.)
355 *) Add processing of proxy certificates (see RFC 3820). This work was
356 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
357 EGEE (Enabling Grids for E-science in Europe).
360 *) RC4 performance overhaul on modern architectures/implementations, such
361 as Intel P4, IA-64 and AMD64.
364 *) New utility extract-section.pl. This can be used specify an alternative
365 section number in a pod file instead of having to treat each file as
366 a separate case in Makefile. This can be done by adding two lines to the
369 =for comment openssl_section:XXX
371 The blank line is mandatory.
375 *) New arguments -certform, -keyform and -pass for s_client and s_server
376 to allow alternative format key and certificate files and passphrase
380 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
381 update associated structures and add various utility functions.
383 Add new policy related verify parameters, include policy checking in
384 standard verify code. Enhance 'smime' application with extra parameters
385 to support policy checking and print out.
388 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
389 Nehemiah processors. These extensions support AES encryption in hardware
390 as well as RNG (though RNG support is currently disabled).
391 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
393 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
396 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
397 [Andy Polyakov and a number of other people]
399 *) Improved PowerPC platform support. Most notably BIGNUM assembler
400 implementation contributed by IBM.
401 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
403 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
404 exponent rather than 'unsigned long'. There is a corresponding change to
405 the new 'rsa_keygen' element of the RSA_METHOD structure.
406 [Jelte Jansen, Geoff Thorpe]
408 *) Functionality for creating the initial serial number file is now
409 moved from CA.pl to the 'ca' utility with a new option -create_serial.
411 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
412 number file to 1, which is bound to cause problems. To avoid
413 the problems while respecting compatibility between different 0.9.7
414 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
415 CA.pl for serial number initialization. With the new release 0.9.8,
416 we can fix the problem directly in the 'ca' utility.)
419 *) Reduced header interdepencies by declaring more opaque objects in
420 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
421 give fewer recursive includes, which could break lazy source code - so
422 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
423 developers should define this symbol when building and using openssl to
424 ensure they track the recommended behaviour, interfaces, [etc], but
425 backwards-compatible behaviour prevails when this isn't defined.
428 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
431 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
432 This will generate a random key of the appropriate length based on the
433 cipher context. The EVP_CIPHER can provide its own random key generation
434 routine to support keys of a specific form. This is used in the des and
435 3des routines to generate a key of the correct parity. Update S/MIME
436 code to use new functions and hence generate correct parity DES keys.
437 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
438 valid (weak or incorrect parity).
441 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
442 as looking them up. This is useful when the verified structure may contain
443 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
444 present unless the new PKCS7_NO_CRL flag is asserted.
447 *) Extend ASN1 oid configuration module. It now additionally accepts the
450 shortName = some long name, 1.2.3.4
453 *) Reimplemented the BN_CTX implementation. There is now no more static
454 limitation on the number of variables it can handle nor the depth of the
455 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
456 information can now expand as required, and rather than having a single
457 static array of bignums, BN_CTX now uses a linked-list of such arrays
458 allowing it to expand on demand whilst maintaining the usefulness of
462 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
463 to allow all RSA operations to function using a single BN_CTX.
466 *) Preliminary support for certificate policy evaluation and checking. This
467 is initially intended to pass the tests outlined in "Conformance Testing
468 of Relying Party Client Certificate Path Processing Logic" v1.07.
471 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
472 remained unused and not that useful. A variety of other little bignum
473 tweaks and fixes have also been made continuing on from the audit (see
477 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
478 associated ASN1, EVP and SSL functions and old ASN1 macros.
481 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
482 and this should never fail. So the return value from the use of
483 BN_set_word() (which can fail due to needless expansion) is now deprecated;
484 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
487 *) BN_CTX_get() should return zero-valued bignums, providing the same
488 initialised value as BN_new().
489 [Geoff Thorpe, suggested by Ulf Möller]
491 *) Support for inhibitAnyPolicy certificate extension.
494 *) An audit of the BIGNUM code is underway, for which debugging code is
495 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
496 is considered valid when processing BIGNUMs, and causes execution to
497 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
498 further steps are taken to deliberately pollute unused data in BIGNUM
499 structures to try and expose faulty code further on. For now, openssl will
500 (in its default mode of operation) continue to tolerate the inconsistent
501 forms that it has tolerated in the past, but authors and packagers should
502 consider trying openssl and their own applications when compiled with
503 these debugging symbols defined. It will help highlight potential bugs in
504 their own code, and will improve the test coverage for OpenSSL itself. At
505 some point, these tighter rules will become openssl's default to improve
506 maintainability, though the assert()s and other overheads will remain only
507 in debugging configurations. See bn.h for more details.
508 [Geoff Thorpe, Nils Larsch, Ulf Möller]
510 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
511 that can only be obtained through BN_CTX_new() (which implicitly
512 initialises it). The presence of this function only made it possible
513 to overwrite an existing structure (and cause memory leaks).
516 *) Because of the callback-based approach for implementing LHASH as a
517 template type, lh_insert() adds opaque objects to hash-tables and
518 lh_doall() or lh_doall_arg() are typically used with a destructor callback
519 to clean up those corresponding objects before destroying the hash table
520 (and losing the object pointers). So some over-zealous constifications in
521 LHASH have been relaxed so that lh_insert() does not take (nor store) the
522 objects as "const" and the lh_doall[_arg] callback wrappers are not
523 prototyped to have "const" restrictions on the object pointers they are
524 given (and so aren't required to cast them away any more).
527 *) The tmdiff.h API was so ugly and minimal that our own timing utility
528 (speed) prefers to use its own implementation. The two implementations
529 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
530 its object type properly exposed (MS_TM) instead of casting to/from "char
531 *". This may still change yet if someone realises MS_TM and "ms_time_***"
532 aren't necessarily the greatest nomenclatures - but this is what was used
533 internally to the implementation so I've used that for now.
536 *) Ensure that deprecated functions do not get compiled when
537 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
538 the self-tests were still using deprecated key-generation functions so
539 these have been updated also.
542 *) Reorganise PKCS#7 code to separate the digest location functionality
543 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
544 New function PKCS7_set_digest() to set the digest type for PKCS#7
545 digestedData type. Add additional code to correctly generate the
546 digestedData type and add support for this type in PKCS7 initialization
550 *) New function PKCS7_set0_type_other() this initializes a PKCS7
551 structure of type "other".
554 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
555 sure the loop does correctly stop and breaking ("division by zero")
556 modulus operations are not performed. The (pre-generated) prime
557 table crypto/bn/bn_prime.h was already correct, but it could not be
558 re-generated on some platforms because of the "division by zero"
559 situation in the script.
560 [Ralf S. Engelschall]
562 *) Update support for ECC-based TLS ciphersuites according to
563 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
564 SHA-1 now is only used for "small" curves (where the
565 representation of a field element takes up to 24 bytes); for
566 larger curves, the field element resulting from ECDH is directly
567 used as premaster secret.
568 [Douglas Stebila (Sun Microsystems Laboratories)]
570 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
571 curve secp160r1 to the tests.
572 [Douglas Stebila (Sun Microsystems Laboratories)]
574 *) Add the possibility to load symbols globally with DSO.
575 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
577 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
578 control of the error stack.
581 *) Add support for STORE in ENGINE.
584 *) Add the STORE type. The intention is to provide a common interface
585 to certificate and key stores, be they simple file-based stores, or
586 HSM-type store, or LDAP stores, or...
587 NOTE: The code is currently UNTESTED and isn't really used anywhere.
590 *) Add a generic structure called OPENSSL_ITEM. This can be used to
591 pass a list of arguments to any function as well as provide a way
592 for a function to pass data back to the caller.
595 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
596 works like BUF_strdup() but can be used to duplicate a portion of
597 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
601 *) Add the function sk_find_ex() which works like sk_find(), but will
602 return an index to an element even if an exact match couldn't be
603 found. The index is guaranteed to point at the element where the
604 searched-for key would be inserted to preserve sorting order.
607 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
608 takes an extra flags argument for optional functionality. Currently,
609 the following flags are defined:
611 OBJ_BSEARCH_VALUE_ON_NOMATCH
612 This one gets OBJ_bsearch_ex() to return a pointer to the first
613 element where the comparing function returns a negative or zero
616 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
617 This one gets OBJ_bsearch_ex() to return a pointer to the first
618 element where the comparing function returns zero. This is useful
619 if there are more than one element where the comparing function
623 *) Make it possible to create self-signed certificates with 'openssl ca'
624 in such a way that the self-signed certificate becomes part of the
625 CA database and uses the same mechanisms for serial number generation
626 as all other certificate signing. The new flag '-selfsign' enables
627 this functionality. Adapt CA.sh and CA.pl.in.
630 *) Add functionality to check the public key of a certificate request
631 against a given private. This is useful to check that a certificate
632 request can be signed by that key (self-signing).
635 *) Make it possible to have multiple active certificates with the same
636 subject in the CA index file. This is done only if the keyword
637 'unique_subject' is set to 'no' in the main CA section (default
638 if 'CA_default') of the configuration file. The value is saved
639 with the database itself in a separate index attribute file,
640 named like the index file with '.attr' appended to the name.
643 *) Generate muti valued AVAs using '+' notation in config files for
647 *) Support for nameConstraints certificate extension.
650 *) Support for policyConstraints certificate extension.
653 *) Support for policyMappings certificate extension.
656 *) Make sure the default DSA_METHOD implementation only uses its
657 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
658 and change its own handlers to be NULL so as to remove unnecessary
659 indirection. This lets alternative implementations fallback to the
660 default implementation more easily.
663 *) Support for directoryName in GeneralName related extensions
667 *) Make it possible to link applications using Makefile.shared.
668 Make that possible even when linking against static libraries!
671 *) Support for single pass processing for S/MIME signing. This now
672 means that S/MIME signing can be done from a pipe, in addition
673 cleartext signing (multipart/signed type) is effectively streaming
674 and the signed data does not need to be all held in memory.
676 This is done with a new flag PKCS7_STREAM. When this flag is set
677 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
678 is done after the data is output (and digests calculated) in
682 *) Add full support for -rpath/-R, both in shared libraries and
683 applications, at least on the platforms where it's known how
687 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
688 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
689 will now compute a table of multiples of the generator that
690 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
691 faster (notably in the case of a single point multiplication,
693 [Nils Larsch, Bodo Moeller]
695 *) IPv6 support for certificate extensions. The various extensions
696 which use the IP:a.b.c.d can now take IPv6 addresses using the
697 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
701 *) Added an ENGINE that implements RSA by performing private key
702 exponentiations with the GMP library. The conversions to and from
703 GMP's mpz_t format aren't optimised nor are any montgomery forms
704 cached, and on x86 it appears OpenSSL's own performance has caught up.
705 However there are likely to be other architectures where GMP could
706 provide a boost. This ENGINE is not built in by default, but it can be
707 specified at Configure time and should be accompanied by the necessary
708 linker additions, eg;
709 ./config -DOPENSSL_USE_GMP -lgmp
712 *) "openssl engine" will not display ENGINE/DSO load failure errors when
713 testing availability of engines with "-t" - the old behaviour is
714 produced by increasing the feature's verbosity with "-tt".
717 *) ECDSA routines: under certain error conditions uninitialized BN objects
718 could be freed. Solution: make sure initialization is performed early
719 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
723 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
724 and DH_METHOD (eg. by ENGINE implementations) to override the normal
725 software implementations. For DSA and DH, parameter generation can
726 also be overriden by providing the appropriate method callbacks.
729 *) Change the "progress" mechanism used in key-generation and
730 primality testing to functions that take a new BN_GENCB pointer in
731 place of callback/argument pairs. The new API functions have "_ex"
732 postfixes and the older functions are reimplemented as wrappers for
733 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
734 declarations of the old functions to help (graceful) attempts to
735 migrate to the new functions. Also, the new key-generation API
736 functions operate on a caller-supplied key-structure and return
737 success/failure rather than returning a key or NULL - this is to
738 help make "keygen" another member function of RSA_METHOD etc.
740 Example for using the new callback interface:
742 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
746 BN_GENCB_set(&my_cb, my_callback, my_arg);
748 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
749 /* For the meaning of a, b in calls to my_callback(), see the
750 * documentation of the function that calls the callback.
751 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
752 * my_callback should return 1 if it wants BN_is_prime_ex()
753 * to continue, or 0 to stop.
758 *) Change the ZLIB compression method to be stateful, and make it
759 available to TLS with the number defined in
760 draft-ietf-tls-compression-04.txt.
763 *) Add the ASN.1 structures and functions for CertificatePair, which
764 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
766 CertificatePair ::= SEQUENCE {
767 forward [0] Certificate OPTIONAL,
768 reverse [1] Certificate OPTIONAL,
769 -- at least one of the pair shall be present -- }
771 Also implement the PEM functions to read and write certificate
772 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
774 This needed to be defined, mostly for the sake of the LDAP
775 attribute crossCertificatePair, but may prove useful elsewhere as
779 *) Make it possible to inhibit symlinking of shared libraries in
780 Makefile.shared, for Cygwin's sake.
783 *) Extend the BIGNUM API by creating a function
784 void BN_set_negative(BIGNUM *a, int neg);
785 and a macro that behave like
786 int BN_is_negative(const BIGNUM *a);
788 to avoid the need to access 'a->neg' directly in applications.
791 *) Implement fast modular reduction for pseudo-Mersenne primes
792 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
793 EC_GROUP_new_curve_GFp() will now automatically use this
795 [Nils Larsch <nla@trustcenter.de>]
797 *) Add new lock type (CRYPTO_LOCK_BN).
800 *) Change the ENGINE framework to automatically load engines
801 dynamically from specific directories unless they could be
802 found to already be built in or loaded. Move all the
803 current engines except for the cryptodev one to a new
805 The engines in engines/ are built as shared libraries if
806 the "shared" options was given to ./Configure or ./config.
807 Otherwise, they are inserted in libcrypto.a.
808 /usr/local/ssl/engines is the default directory for dynamic
809 engines, but that can be overriden at configure time through
810 the usual use of --prefix and/or --openssldir, and at run
811 time with the environment variable OPENSSL_ENGINES.
812 [Geoff Thorpe and Richard Levitte]
814 *) Add Makefile.shared, a helper makefile to build shared
815 libraries. Addapt Makefile.org.
818 *) Add version info to Win32 DLLs.
819 [Peter 'Luna' Runestig" <peter@runestig.com>]
821 *) Add new 'medium level' PKCS#12 API. Certificates and keys
822 can be added using this API to created arbitrary PKCS#12
823 files while avoiding the low level API.
825 New options to PKCS12_create(), key or cert can be NULL and
826 will then be omitted from the output file. The encryption
827 algorithm NIDs can be set to -1 for no encryption, the mac
828 iteration count can be set to 0 to omit the mac.
830 Enhance pkcs12 utility by making the -nokeys and -nocerts
831 options work when creating a PKCS#12 file. New option -nomac
832 to omit the mac, NONE can be set for an encryption algorithm.
833 New code is modified to use the enhanced PKCS12_create()
834 instead of the low level API.
837 *) Extend ASN1 encoder to support indefinite length constructed
838 encoding. This can output sequences tags and octet strings in
839 this form. Modify pk7_asn1.c to support indefinite length
840 encoding. This is experimental and needs additional code to
841 be useful, such as an ASN1 bio and some enhanced streaming
844 Extend template encode functionality so that tagging is passed
845 down to the template encoder.
848 *) Let 'openssl req' fail if an argument to '-newkey' is not
849 recognized instead of using RSA as a default.
852 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
853 As these are not official, they are not included in "ALL";
854 the "ECCdraft" ciphersuite group alias can be used to select them.
855 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
857 *) Add ECDH engine support.
858 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
860 *) Add ECDH in new directory crypto/ecdh/.
861 [Douglas Stebila (Sun Microsystems Laboratories)]
863 *) Let BN_rand_range() abort with an error after 100 iterations
864 without success (which indicates a broken PRNG).
867 *) Change BN_mod_sqrt() so that it verifies that the input value
868 is really the square of the return value. (Previously,
869 BN_mod_sqrt would show GIGO behaviour.)
872 *) Add named elliptic curves over binary fields from X9.62, SECG,
873 and WAP/WTLS; add OIDs that were still missing.
875 [Sheueling Chang Shantz and Douglas Stebila
876 (Sun Microsystems Laboratories)]
878 *) Extend the EC library for elliptic curves over binary fields
879 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
882 EC_GF2m_simple_method
886 EC_GROUP_new_curve_GF2m
887 EC_GROUP_set_curve_GF2m
888 EC_GROUP_get_curve_GF2m
889 EC_POINT_set_affine_coordinates_GF2m
890 EC_POINT_get_affine_coordinates_GF2m
891 EC_POINT_set_compressed_coordinates_GF2m
893 Point compression for binary fields is disabled by default for
894 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
897 As binary polynomials are represented as BIGNUMs, various members
898 of the EC_GROUP and EC_POINT data structures can be shared
899 between the implementations for prime fields and binary fields;
900 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
901 are essentially identical to their ..._GFp counterparts.
902 (For simplicity, the '..._GFp' prefix has been dropped from
903 various internal method names.)
905 An internal 'field_div' method (similar to 'field_mul' and
906 'field_sqr') has been added; this is used only for binary fields.
908 [Sheueling Chang Shantz and Douglas Stebila
909 (Sun Microsystems Laboratories)]
911 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
912 through methods ('mul', 'precompute_mult').
914 The generic implementations (now internally called 'ec_wNAF_mul'
915 and 'ec_wNAF_precomputed_mult') remain the default if these
916 methods are undefined.
918 [Sheueling Chang Shantz and Douglas Stebila
919 (Sun Microsystems Laboratories)]
921 *) New function EC_GROUP_get_degree, which is defined through
922 EC_METHOD. For curves over prime fields, this returns the bit
923 length of the modulus.
925 [Sheueling Chang Shantz and Douglas Stebila
926 (Sun Microsystems Laboratories)]
928 *) New functions EC_GROUP_dup, EC_POINT_dup.
929 (These simply call ..._new and ..._copy).
931 [Sheueling Chang Shantz and Douglas Stebila
932 (Sun Microsystems Laboratories)]
934 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
935 Polynomials are represented as BIGNUMs (where the sign bit is not
936 used) in the following functions [macros]:
939 BN_GF2m_sub [= BN_GF2m_add]
940 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
941 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
942 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
944 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
945 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
946 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
947 BN_GF2m_cmp [= BN_ucmp]
949 (Note that only the 'mod' functions are actually for fields GF(2^m).
950 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
952 For some functions, an the irreducible polynomial defining a
953 field can be given as an 'unsigned int[]' with strictly
954 decreasing elements giving the indices of those bits that are set;
955 i.e., p[] represents the polynomial
956 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
958 p[0] > p[1] > ... > p[k] = 0.
959 This applies to the following functions:
964 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
965 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
968 BN_GF2m_mod_solve_quad_arr
972 Conversion can be performed by the following functions:
977 bntest.c has additional tests for binary polynomial arithmetic.
979 Two implementations for BN_GF2m_mod_div() are available.
980 The default algorithm simply uses BN_GF2m_mod_inv() and
981 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
982 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
983 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
985 [Sheueling Chang Shantz and Douglas Stebila
986 (Sun Microsystems Laboratories)]
988 *) Add new error code 'ERR_R_DISABLED' that can be used when some
989 functionality is disabled at compile-time.
990 [Douglas Stebila <douglas.stebila@sun.com>]
992 *) Change default behaviour of 'openssl asn1parse' so that more
993 information is visible when viewing, e.g., a certificate:
995 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
996 mode the content of non-printable OCTET STRINGs is output in a
997 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
998 avoid the appearance of a printable string.
999 [Nils Larsch <nla@trustcenter.de>]
1001 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1003 EC_GROUP_set_asn1_flag()
1004 EC_GROUP_get_asn1_flag()
1005 EC_GROUP_set_point_conversion_form()
1006 EC_GROUP_get_point_conversion_form()
1007 These control ASN1 encoding details:
1008 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1009 has been set to OPENSSL_EC_NAMED_CURVE.
1010 - Points are encoded in uncompressed form by default; options for
1011 asn1_for are as for point2oct, namely
1012 POINT_CONVERSION_COMPRESSED
1013 POINT_CONVERSION_UNCOMPRESSED
1014 POINT_CONVERSION_HYBRID
1016 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1019 EC_GROUP_get0_seed()
1020 EC_GROUP_get_seed_len()
1021 This is used only for ASN1 purposes (so far).
1022 [Nils Larsch <nla@trustcenter.de>]
1024 *) Add 'field_type' member to EC_METHOD, which holds the NID
1025 of the appropriate field type OID. The new function
1026 EC_METHOD_get_field_type() returns this value.
1027 [Nils Larsch <nla@trustcenter.de>]
1032 EC_POINT_point2hex()
1033 EC_POINT_hex2point()
1034 providing useful interfaces to EC_POINT_point2oct() and
1035 EC_POINT_oct2point().
1036 [Nils Larsch <nla@trustcenter.de>]
1038 *) Change internals of the EC library so that the functions
1039 EC_GROUP_set_generator()
1040 EC_GROUP_get_generator()
1041 EC_GROUP_get_order()
1042 EC_GROUP_get_cofactor()
1043 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1044 to methods, which would lead to unnecessary code duplication when
1045 adding different types of curves.
1046 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1048 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1049 arithmetic, and such that modified wNAFs are generated
1050 (which avoid length expansion in many cases).
1053 *) Add a function EC_GROUP_check_discriminant() (defined via
1054 EC_METHOD) that verifies that the curve discriminant is non-zero.
1056 Add a function EC_GROUP_check() that makes some sanity tests
1057 on a EC_GROUP, its generator and order. This includes
1058 EC_GROUP_check_discriminant().
1059 [Nils Larsch <nla@trustcenter.de>]
1061 *) Add ECDSA in new directory crypto/ecdsa/.
1063 Add applications 'openssl ecparam' and 'openssl ecdsa'
1064 (these are based on 'openssl dsaparam' and 'openssl dsa').
1066 ECDSA support is also included in various other files across the
1067 library. Most notably,
1068 - 'openssl req' now has a '-newkey ecdsa:file' option;
1069 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1070 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1071 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1072 them suitable for ECDSA where domain parameters must be
1073 extracted before the specific public key;
1074 - ECDSA engine support has been added.
1075 [Nils Larsch <nla@trustcenter.de>]
1077 *) Include some named elliptic curves, and add OIDs from X9.62,
1078 SECG, and WAP/WTLS. Each curve can be obtained from the new
1080 EC_GROUP_new_by_curve_name(),
1081 and the list of available named curves can be obtained with
1082 EC_get_builtin_curves().
1083 Also add a 'curve_name' member to EC_GROUP objects, which can be
1085 EC_GROUP_set_curve_name()
1086 EC_GROUP_get_curve_name()
1087 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1089 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1090 was actually never needed) and in BN_mul(). The removal in BN_mul()
1091 required a small change in bn_mul_part_recursive() and the addition
1092 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1093 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1094 bn_sub_words() and bn_add_words() except they take arrays with
1098 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1100 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1101 The value now differs depending on if you build for FIPS or not.
1102 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1103 safely run with a non-FIPSed libcrypto, as it may crash because of
1104 the difference induced by this change.
1107 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1109 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1110 (part of SSL_OP_ALL). This option used to disable the
1111 countermeasure against man-in-the-middle protocol-version
1112 rollback in the SSL 2.0 server implementation, which is a bad
1113 idea. (CVE-2005-2969)
1115 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1116 for Information Security, National Institute of Advanced Industrial
1117 Science and Technology [AIST], Japan)]
1119 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1120 mainly for FIPS compliance and not fully integrated at this stage.
1123 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1124 the exponentiation using a fixed-length exponent. (Otherwise,
1125 the information leaked through timing could expose the secret key
1126 after many signatures; cf. Bleichenbacher's attack on DSA with
1130 *) Make a new fixed-window mod_exp implementation the default for
1131 RSA, DSA, and DH private-key operations so that the sequence of
1132 squares and multiplies and the memory access pattern are
1133 independent of the particular secret key. This will mitigate
1134 cache-timing and potential related attacks.
1136 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1137 and this is automatically used by BN_mod_exp_mont() if the new flag
1138 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1139 will use this BN flag for private exponents unless the flag
1140 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1141 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1143 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1145 *) Change the client implementation for SSLv23_method() and
1146 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1147 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1148 (Previously, the SSL 2.0 backwards compatible Client Hello
1149 message format would be used even with SSL_OP_NO_SSLv2.)
1152 *) Add support for smime-type MIME parameter in S/MIME messages which some
1156 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1157 a threadsafe manner. Modify rsa code to use new function and add calls
1158 to dsa and dh code (which had race conditions before).
1161 *) Include the fixed error library code in the C error file definitions
1162 instead of fixing them up at runtime. This keeps the error code
1163 structures constant.
1166 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1168 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1171 *) Fixes for newer kerberos headers. NB: the casts are needed because
1172 the 'length' field is signed on one version and unsigned on another
1173 with no (?) obvious way to tell the difference, without these VC++
1174 complains. Also the "definition" of FAR (blank) is no longer included
1175 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1176 some needed definitions.
1179 *) Undo Cygwin change.
1182 *) Added support for proxy certificates according to RFC 3820.
1183 Because they may be a security thread to unaware applications,
1184 they must be explicitely allowed in run-time. See
1185 docs/HOWTO/proxy_certificates.txt for further information.
1188 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1190 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1191 server and client random values. Previously
1192 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1193 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1195 This change has negligible security impact because:
1197 1. Server and client random values still have 24 bytes of pseudo random
1200 2. Server and client random values are sent in the clear in the initial
1203 3. The master secret is derived using the premaster secret (48 bytes in
1204 size for static RSA ciphersuites) as well as client server and random
1207 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1210 [Stephen Henson, reported by UK NISCC]
1212 *) Use Windows randomness collection on Cygwin.
1215 *) Fix hang in EGD/PRNGD query when communication socket is closed
1216 prematurely by EGD/PRNGD.
1217 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1219 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1222 *) Back-port of selected performance improvements from development
1223 branch, as well as improved support for PowerPC platforms.
1226 *) Add lots of checks for memory allocation failure, error codes to indicate
1227 failure and freeing up memory if a failure occurs.
1228 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1230 *) Add new -passin argument to dgst.
1233 *) Perform some character comparisons of different types in X509_NAME_cmp:
1234 this is needed for some certificates that reencode DNs into UTF8Strings
1235 (in violation of RFC3280) and can't or wont issue name rollover
1239 *) Make an explicit check during certificate validation to see that
1240 the CA setting in each certificate on the chain is correct. As a
1241 side effect always do the following basic checks on extensions,
1242 not just when there's an associated purpose to the check:
1244 - if there is an unhandled critical extension (unless the user
1245 has chosen to ignore this fault)
1246 - if the path length has been exceeded (if one is set at all)
1247 - that certain extensions fit the associated purpose (if one has
1251 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1253 *) Avoid a race condition when CRLs are checked in a multi threaded
1254 environment. This would happen due to the reordering of the revoked
1255 entries during signature checking and serial number lookup. Now the
1256 encoding is cached and the serial number sort performed under a lock.
1257 Add new STACK function sk_is_sorted().
1260 *) Add Delta CRL to the extension code.
1263 *) Various fixes to s3_pkt.c so alerts are sent properly.
1264 [David Holmes <d.holmes@f5.com>]
1266 *) Reduce the chances of duplicate issuer name and serial numbers (in
1267 violation of RFC3280) using the OpenSSL certificate creation utilities.
1268 This is done by creating a random 64 bit value for the initial serial
1269 number when a serial number file is created or when a self signed
1270 certificate is created using 'openssl req -x509'. The initial serial
1271 number file is created using 'openssl x509 -next_serial' in CA.pl
1272 rather than being initialized to 1.
1275 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1277 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1278 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1279 [Joe Orton, Steve Henson]
1281 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1283 [Joe Orton, Steve Henson]
1285 *) Make it possible to have multiple active certificates with the same
1286 subject in the CA index file. This is done only if the keyword
1287 'unique_subject' is set to 'no' in the main CA section (default
1288 if 'CA_default') of the configuration file. The value is saved
1289 with the database itself in a separate index attribute file,
1290 named like the index file with '.attr' appended to the name.
1293 *) X509 verify fixes. Disable broken certificate workarounds when
1294 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1295 keyUsage extension present. Don't accept CRLs with unhandled critical
1296 extensions: since verify currently doesn't process CRL extensions this
1297 rejects a CRL with *any* critical extensions. Add new verify error codes
1301 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1302 A clarification of RFC2560 will require the use of OCTET STRINGs and
1303 some implementations cannot handle the current raw format. Since OpenSSL
1304 copies and compares OCSP nonces as opaque blobs without any attempt at
1305 parsing them this should not create any compatibility issues.
1308 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1309 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1310 this HMAC (and other) operations are several times slower than OpenSSL
1314 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1315 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1317 *) Use the correct content when signing type "other".
1320 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1322 *) Fix various bugs revealed by running the NISCC test suite:
1324 Stop out of bounds reads in the ASN1 code when presented with
1325 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1327 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1329 If verify callback ignores invalid public key errors don't try to check
1330 certificate signature with the NULL public key.
1334 *) New -ignore_err option in ocsp application to stop the server
1335 exiting on the first error in a request.
1338 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1339 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1343 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1344 extra data after the compression methods not only for TLS 1.0
1345 but also for SSL 3.0 (as required by the specification).
1346 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1348 *) Change X509_certificate_type() to mark the key as exported/exportable
1349 when it's 512 *bits* long, not 512 bytes.
1352 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1353 blocks during encryption.
1356 *) Various fixes to base64 BIO and non blocking I/O. On write
1357 flushes were not handled properly if the BIO retried. On read
1358 data was not being buffered properly and had various logic bugs.
1359 This also affects blocking I/O when the data being decoded is a
1363 *) Various S/MIME bugfixes and compatibility changes:
1364 output correct application/pkcs7 MIME type if
1365 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1366 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1367 of files as .eml work). Correctly handle very long lines in MIME
1371 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1373 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1374 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1375 a protocol version number mismatch like a decryption error
1376 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1379 *) Turn on RSA blinding by default in the default implementation
1380 to avoid a timing attack. Applications that don't want it can call
1381 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1382 They would be ill-advised to do so in most cases.
1383 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1385 *) Change RSA blinding code so that it works when the PRNG is not
1386 seeded (in this case, the secret RSA exponent is abused as
1387 an unpredictable seed -- if it is not unpredictable, there
1388 is no point in blinding anyway). Make RSA blinding thread-safe
1389 by remembering the creator's thread ID in rsa->blinding and
1390 having all other threads use local one-time blinding factors
1391 (this requires more computation than sharing rsa->blinding, but
1392 avoids excessive locking; and if an RSA object is not shared
1393 between threads, blinding will still be very fast).
1396 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1397 ENGINE as defaults for all supported algorithms irrespective of
1398 the 'flags' parameter. 'flags' is now honoured, so applications
1399 should make sure they are passing it correctly.
1402 *) Target "mingw" now allows native Windows code to be generated in
1403 the Cygwin environment as well as with the MinGW compiler.
1406 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1408 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1409 via timing by performing a MAC computation even if incorrrect
1410 block cipher padding has been found. This is a countermeasure
1411 against active attacks where the attacker has to distinguish
1412 between bad padding and a MAC verification error. (CVE-2003-0078)
1414 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1415 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1416 Martin Vuagnoux (EPFL, Ilion)]
1418 *) Make the no-err option work as intended. The intention with no-err
1419 is not to have the whole error stack handling routines removed from
1420 libcrypto, it's only intended to remove all the function name and
1421 reason texts, thereby removing some of the footprint that may not
1422 be interesting if those errors aren't displayed anyway.
1424 NOTE: it's still possible for any application or module to have it's
1425 own set of error texts inserted. The routines are there, just not
1426 used by default when no-err is given.
1429 *) Add support for FreeBSD on IA64.
1430 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1432 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1433 Kerberos function mit_des_cbc_cksum(). Before this change,
1434 the value returned by DES_cbc_cksum() was like the one from
1435 mit_des_cbc_cksum(), except the bytes were swapped.
1436 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1438 *) Allow an application to disable the automatic SSL chain building.
1439 Before this a rather primitive chain build was always performed in
1440 ssl3_output_cert_chain(): an application had no way to send the
1441 correct chain if the automatic operation produced an incorrect result.
1443 Now the chain builder is disabled if either:
1445 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1447 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1449 The reasoning behind this is that an application would not want the
1450 auto chain building to take place if extra chain certificates are
1451 present and it might also want a means of sending no additional
1452 certificates (for example the chain has two certificates and the
1456 *) Add the possibility to build without the ENGINE framework.
1457 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1459 *) Under Win32 gmtime() can return NULL: check return value in
1460 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1463 *) DSA routines: under certain error conditions uninitialized BN objects
1464 could be freed. Solution: make sure initialization is performed early
1465 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1466 Nils Larsch <nla@trustcenter.de> via PR#459)
1469 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1470 checked on reconnect on the client side, therefore session resumption
1471 could still fail with a "ssl session id is different" error. This
1472 behaviour is masked when SSL_OP_ALL is used due to
1473 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1474 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1475 followup to PR #377.
1478 *) IA-32 assembler support enhancements: unified ELF targets, support
1479 for SCO/Caldera platforms, fix for Cygwin shared build.
1482 *) Add support for FreeBSD on sparc64. As a consequence, support for
1483 FreeBSD on non-x86 processors is separate from x86 processors on
1484 the config script, much like the NetBSD support.
1485 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1487 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1489 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1492 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1493 code (06) was taken as the first octet of the session ID and the last
1494 octet was ignored consequently. As a result SSLv2 client side session
1495 caching could not have worked due to the session ID mismatch between
1497 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1501 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1502 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1506 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1507 seems that in spite of existing for more than a year, many application
1508 author have done nothing to provide the necessary callbacks, which
1509 means that this particular engine will not work properly anywhere.
1510 This is a very unfortunate situation which forces us, in the name
1511 of usability, to give the hw_ncipher.c a static lock, which is part
1513 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1514 appear in 0.9.8 or later. We EXPECT application authors to have
1515 dealt properly with this when 0.9.8 is released (unless we actually
1516 make such changes in the libcrypto locking code that changes will
1517 have to be made anyway).
1520 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1521 octets have been read, EOF or an error occurs. Without this change
1522 some truncated ASN1 structures will not produce an error.
1525 *) Disable Heimdal support, since it hasn't been fully implemented.
1526 Still give the possibility to force the use of Heimdal, but with
1527 warnings and a request that patches get sent to openssl-dev.
1530 *) Add the VC-CE target, introduce the WINCE sysname, and add
1531 INSTALL.WCE and appropriate conditionals to make it build.
1532 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1534 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1535 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1536 edit numbers of the version.
1537 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1539 *) Introduce safe string copy and catenation functions
1540 (BUF_strlcpy() and BUF_strlcat()).
1541 [Ben Laurie (CHATS) and Richard Levitte]
1543 *) Avoid using fixed-size buffers for one-line DNs.
1544 [Ben Laurie (CHATS)]
1546 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1547 resizing buffers containing secrets, and use where appropriate.
1548 [Ben Laurie (CHATS)]
1550 *) Avoid using fixed size buffers for configuration file location.
1551 [Ben Laurie (CHATS)]
1553 *) Avoid filename truncation for various CA files.
1554 [Ben Laurie (CHATS)]
1556 *) Use sizeof in preference to magic numbers.
1557 [Ben Laurie (CHATS)]
1559 *) Avoid filename truncation in cert requests.
1560 [Ben Laurie (CHATS)]
1562 *) Add assertions to check for (supposedly impossible) buffer
1564 [Ben Laurie (CHATS)]
1566 *) Don't cache truncated DNS entries in the local cache (this could
1567 potentially lead to a spoofing attack).
1568 [Ben Laurie (CHATS)]
1570 *) Fix various buffers to be large enough for hex/decimal
1571 representations in a platform independent manner.
1572 [Ben Laurie (CHATS)]
1574 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1575 resizing buffers containing secrets, and use where appropriate.
1576 [Ben Laurie (CHATS)]
1578 *) Add BIO_indent() to avoid much slightly worrying code to do
1580 [Ben Laurie (CHATS)]
1582 *) Convert sprintf()/BIO_puts() to BIO_printf().
1583 [Ben Laurie (CHATS)]
1585 *) buffer_gets() could terminate with the buffer only half
1587 [Ben Laurie (CHATS)]
1589 *) Add assertions to prevent user-supplied crypto functions from
1590 overflowing internal buffers by having large block sizes, etc.
1591 [Ben Laurie (CHATS)]
1593 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1595 [Ben Laurie (CHATS)]
1597 *) Eliminate unused copy of key in RC4.
1598 [Ben Laurie (CHATS)]
1600 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1601 [Ben Laurie (CHATS)]
1603 *) Fix off-by-one error in EGD path.
1604 [Ben Laurie (CHATS)]
1606 *) If RANDFILE path is too long, ignore instead of truncating.
1607 [Ben Laurie (CHATS)]
1609 *) Eliminate unused and incorrectly sized X.509 structure
1611 [Ben Laurie (CHATS)]
1613 *) Eliminate unused and dangerous function knumber().
1614 [Ben Laurie (CHATS)]
1616 *) Eliminate unused and dangerous structure, KSSL_ERR.
1617 [Ben Laurie (CHATS)]
1619 *) Protect against overlong session ID context length in an encoded
1620 session object. Since these are local, this does not appear to be
1622 [Ben Laurie (CHATS)]
1624 *) Change from security patch (see 0.9.6e below) that did not affect
1625 the 0.9.6 release series:
1627 Remote buffer overflow in SSL3 protocol - an attacker could
1628 supply an oversized master key in Kerberos-enabled versions.
1630 [Ben Laurie (CHATS)]
1632 *) Change the SSL kerb5 codes to match RFC 2712.
1635 *) Make -nameopt work fully for req and add -reqopt switch.
1636 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
1638 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
1639 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
1641 *) Make sure tests can be performed even if the corresponding algorithms
1642 have been removed entirely. This was also the last step to make
1643 OpenSSL compilable with DJGPP under all reasonable conditions.
1644 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
1646 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
1647 to allow version independent disabling of normally unselected ciphers,
1648 which may be activated as a side-effect of selecting a single cipher.
1650 (E.g., cipher list string "RSA" enables ciphersuites that are left
1651 out of "ALL" because they do not provide symmetric encryption.
1652 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
1653 [Lutz Jaenicke, Bodo Moeller]
1655 *) Add appropriate support for separate platform-dependent build
1656 directories. The recommended way to make a platform-dependent
1657 build directory is the following (tested on Linux), maybe with
1660 # Place yourself outside of the OpenSSL source tree. In
1661 # this example, the environment variable OPENSSL_SOURCE
1662 # is assumed to contain the absolute OpenSSL source directory.
1663 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
1664 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
1665 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
1666 mkdir -p `dirname $F`
1667 ln -s $OPENSSL_SOURCE/$F $F
1670 To be absolutely sure not to disturb the source tree, a "make clean"
1671 is a good thing. If it isn't successfull, don't worry about it,
1672 it probably means the source directory is very clean.
1675 *) Make sure any ENGINE control commands make local copies of string
1676 pointers passed to them whenever necessary. Otherwise it is possible
1677 the caller may have overwritten (or deallocated) the original string
1678 data when a later ENGINE operation tries to use the stored values.
1679 [Götz Babin-Ebell <babinebell@trustcenter.de>]
1681 *) Improve diagnostics in file reading and command-line digests.
1682 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
1684 *) Add AES modes CFB and OFB to the object database. Correct an
1685 error in AES-CFB decryption.
1688 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
1689 allows existing EVP_CIPHER_CTX structures to be reused after
1690 calling EVP_*Final(). This behaviour is used by encryption
1691 BIOs and some applications. This has the side effect that
1692 applications must explicitly clean up cipher contexts with
1693 EVP_CIPHER_CTX_cleanup() or they will leak memory.
1696 *) Check the values of dna and dnb in bn_mul_recursive before calling
1697 bn_mul_comba (a non zero value means the a or b arrays do not contain
1698 n2 elements) and fallback to bn_mul_normal if either is not zero.
1701 *) Fix escaping of non-ASCII characters when using the -subj option
1702 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
1705 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
1706 form for "surname", serialNumber has no short form.
1707 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
1708 therefore remove "mail" short name for "internet 7".
1709 The OID for unique identifiers in X509 certificates is
1710 x500UniqueIdentifier, not uniqueIdentifier.
1711 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
1714 *) Add an "init" command to the ENGINE config module and auto initialize
1715 ENGINEs. Without any "init" command the ENGINE will be initialized
1716 after all ctrl commands have been executed on it. If init=1 the
1717 ENGINE is initailized at that point (ctrls before that point are run
1718 on the uninitialized ENGINE and after on the initialized one). If
1719 init=0 then the ENGINE will not be iniatialized at all.
1722 *) Fix the 'app_verify_callback' interface so that the user-defined
1723 argument is actually passed to the callback: In the
1724 SSL_CTX_set_cert_verify_callback() prototype, the callback
1725 declaration has been changed from
1728 int (*cb)(X509_STORE_CTX *,void *);
1729 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
1730 i=s->ctx->app_verify_callback(&ctx)
1731 has been changed into
1732 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
1734 To update applications using SSL_CTX_set_cert_verify_callback(),
1735 a dummy argument can be added to their callback functions.
1736 [D. K. Smetters <smetters@parc.xerox.com>]
1738 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
1739 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
1741 *) Add and OPENSSL_LOAD_CONF define which will cause
1742 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
1743 This allows older applications to transparently support certain
1744 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
1745 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
1746 load the config file and OPENSSL_add_all_algorithms_conf() which will
1747 always load it have also been added.
1750 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
1751 Adjust NIDs and EVP layer.
1752 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1754 *) Config modules support in openssl utility.
1756 Most commands now load modules from the config file,
1757 though in a few (such as version) this isn't done
1758 because it couldn't be used for anything.
1760 In the case of ca and req the config file used is
1761 the same as the utility itself: that is the -config
1762 command line option can be used to specify an
1766 *) Move default behaviour from OPENSSL_config(). If appname is NULL
1767 use "openssl_conf" if filename is NULL use default openssl config file.
1770 *) Add an argument to OPENSSL_config() to allow the use of an alternative
1771 config section name. Add a new flag to tolerate a missing config file
1772 and move code to CONF_modules_load_file().
1775 *) Support for crypto accelerator cards from Accelerated Encryption
1776 Processing, www.aep.ie. (Use engine 'aep')
1777 The support was copied from 0.9.6c [engine] and adapted/corrected
1778 to work with the new engine framework.
1779 [AEP Inc. and Richard Levitte]
1781 *) Support for SureWare crypto accelerator cards from Baltimore
1782 Technologies. (Use engine 'sureware')
1783 The support was copied from 0.9.6c [engine] and adapted
1784 to work with the new engine framework.
1787 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
1788 make the newer ENGINE framework commands for the CHIL engine work.
1789 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
1791 *) Make it possible to produce shared libraries on ReliantUNIX.
1792 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
1794 *) Add the configuration target debug-linux-ppro.
1795 Make 'openssl rsa' use the general key loading routines
1796 implemented in apps.c, and make those routines able to
1797 handle the key format FORMAT_NETSCAPE and the variant
1799 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1801 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
1802 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1804 *) Add -keyform to rsautl, and document -engine.
1805 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
1807 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
1808 BIO_R_NO_SUCH_FILE error code rather than the generic
1809 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
1812 *) Add new functions
1814 ERR_peek_last_error_line
1815 ERR_peek_last_error_line_data.
1816 These are similar to
1819 ERR_peek_error_line_data,
1820 but report on the latest error recorded rather than the first one
1821 still in the error queue.
1822 [Ben Laurie, Bodo Moeller]
1824 *) default_algorithms option in ENGINE config module. This allows things
1826 default_algorithms = ALL
1827 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
1830 *) Prelminary ENGINE config module.
1833 *) New experimental application configuration code.
1836 *) Change the AES code to follow the same name structure as all other
1837 symmetric ciphers, and behave the same way. Move everything to
1838 the directory crypto/aes, thereby obsoleting crypto/rijndael.
1839 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1841 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
1842 [Ben Laurie and Theo de Raadt]
1844 *) Add option to output public keys in req command.
1845 [Massimiliano Pala madwolf@openca.org]
1847 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
1848 (up to about 10% better than before for P-192 and P-224).
1851 *) New functions/macros
1853 SSL_CTX_set_msg_callback(ctx, cb)
1854 SSL_CTX_set_msg_callback_arg(ctx, arg)
1855 SSL_set_msg_callback(ssl, cb)
1856 SSL_set_msg_callback_arg(ssl, arg)
1858 to request calling a callback function
1860 void cb(int write_p, int version, int content_type,
1861 const void *buf, size_t len, SSL *ssl, void *arg)
1863 whenever a protocol message has been completely received
1864 (write_p == 0) or sent (write_p == 1). Here 'version' is the
1865 protocol version according to which the SSL library interprets
1866 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
1867 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
1868 the content type as defined in the SSL 3.0/TLS 1.0 protocol
1869 specification (change_cipher_spec(20), alert(21), handshake(22)).
1870 'buf' and 'len' point to the actual message, 'ssl' to the
1871 SSL object, and 'arg' is the application-defined value set by
1872 SSL[_CTX]_set_msg_callback_arg().
1874 'openssl s_client' and 'openssl s_server' have new '-msg' options
1875 to enable a callback that displays all protocol messages.
1878 *) Change the shared library support so shared libraries are built as
1879 soon as the corresponding static library is finished, and thereby get
1880 openssl and the test programs linked against the shared library.
1881 This still only happens when the keyword "shard" has been given to
1882 the configuration scripts.
1884 NOTE: shared library support is still an experimental thing, and
1885 backward binary compatibility is still not guaranteed.
1886 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
1888 *) Add support for Subject Information Access extension.
1889 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1891 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
1892 additional bytes when new memory had to be allocated, not just
1893 when reusing an existing buffer.
1896 *) New command line and configuration option 'utf8' for the req command.
1897 This allows field values to be specified as UTF8 strings.
1900 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
1901 runs for the former and machine-readable output for the latter.
1904 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
1905 of the e-mail address in the DN (i.e., it will go into a certificate
1906 extension only). The new configuration file option 'email_in_dn = no'
1907 has the same effect.
1908 [Massimiliano Pala madwolf@openca.org]
1910 *) Change all functions with names starting with des_ to be starting
1911 with DES_ instead. Add wrappers that are compatible with libdes,
1912 but are named _ossl_old_des_*. Finally, add macros that map the
1913 des_* symbols to the corresponding _ossl_old_des_* if libdes
1914 compatibility is desired. If OpenSSL 0.9.6c compatibility is
1915 desired, the des_* symbols will be mapped to DES_*, with one
1918 Since we provide two compatibility mappings, the user needs to
1919 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
1920 compatibility is desired. The default (i.e., when that macro
1921 isn't defined) is OpenSSL 0.9.6c compatibility.
1923 There are also macros that enable and disable the support of old
1924 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
1925 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
1926 are defined, the default will apply: to support the old des routines.
1928 In either case, one must include openssl/des.h to get the correct
1929 definitions. Do not try to just include openssl/des_old.h, that
1932 NOTE: This is a major break of an old API into a new one. Software
1933 authors are encouraged to switch to the DES_ style functions. Some
1934 time in the future, des_old.h and the libdes compatibility functions
1935 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
1936 default), and then completely removed.
1939 *) Test for certificates which contain unsupported critical extensions.
1940 If such a certificate is found during a verify operation it is
1941 rejected by default: this behaviour can be overridden by either
1942 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
1943 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
1944 X509_supported_extension() has also been added which returns 1 if a
1945 particular extension is supported.
1948 *) Modify the behaviour of EVP cipher functions in similar way to digests
1949 to retain compatibility with existing code.
1952 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
1953 compatibility with existing code. In particular the 'ctx' parameter does
1954 not have to be to be initialized before the call to EVP_DigestInit() and
1955 it is tidied up after a call to EVP_DigestFinal(). New function
1956 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
1957 EVP_MD_CTX_copy() changed to not require the destination to be
1958 initialized valid and new function EVP_MD_CTX_copy_ex() added which
1959 requires the destination to be valid.
1961 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
1962 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
1965 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
1966 so that complete 'Handshake' protocol structures are kept in memory
1967 instead of overwriting 'msg_type' and 'length' with 'body' data.
1970 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
1971 [Massimo Santin via Richard Levitte]
1973 *) Major restructuring to the underlying ENGINE code. This includes
1974 reduction of linker bloat, separation of pure "ENGINE" manipulation
1975 (initialisation, etc) from functionality dealing with implementations
1976 of specific crypto iterfaces. This change also introduces integrated
1977 support for symmetric ciphers and digest implementations - so ENGINEs
1978 can now accelerate these by providing EVP_CIPHER and EVP_MD
1979 implementations of their own. This is detailed in crypto/engine/README
1980 as it couldn't be adequately described here. However, there are a few
1981 API changes worth noting - some RSA, DSA, DH, and RAND functions that
1982 were changed in the original introduction of ENGINE code have now
1983 reverted back - the hooking from this code to ENGINE is now a good
1984 deal more passive and at run-time, operations deal directly with
1985 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
1986 dereferencing through an ENGINE pointer any more. Also, the ENGINE
1987 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
1988 they were not being used by the framework as there is no concept of a
1989 BIGNUM_METHOD and they could not be generalised to the new
1990 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
1991 ENGINE_cpy() has been removed as it cannot be consistently defined in
1995 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
1998 *) Change mkdef.pl to sort symbols that get the same entry number,
1999 and make sure the automatically generated functions ERR_load_*
2000 become part of libeay.num as well.
2003 *) New function SSL_renegotiate_pending(). This returns true once
2004 renegotiation has been requested (either SSL_renegotiate() call
2005 or HelloRequest/ClientHello receveived from the peer) and becomes
2006 false once a handshake has been completed.
2007 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2008 sends a HelloRequest, but does not ensure that a handshake takes
2009 place. SSL_renegotiate_pending() is useful for checking if the
2010 client has followed the request.)
2013 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2014 By default, clients may request session resumption even during
2015 renegotiation (if session ID contexts permit); with this option,
2016 session resumption is possible only in the first handshake.
2018 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2019 more bits available for options that should not be part of
2020 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2023 *) Add some demos for certificate and certificate request creation.
2026 *) Make maximum certificate chain size accepted from the peer application
2027 settable (SSL*_get/set_max_cert_list()), as proposed by
2028 "Douglas E. Engert" <deengert@anl.gov>.
2031 *) Add support for shared libraries for Unixware-7
2032 (Boyd Lynn Gerber <gerberb@zenez.com>).
2035 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2036 be done prior to destruction. Use this to unload error strings from
2037 ENGINEs that load their own error strings. NB: This adds two new API
2038 functions to "get" and "set" this destroy handler in an ENGINE.
2041 *) Alter all existing ENGINE implementations (except "openssl" and
2042 "openbsd") to dynamically instantiate their own error strings. This
2043 makes them more flexible to be built both as statically-linked ENGINEs
2044 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2045 Also, add stub code to each that makes building them as self-contained
2046 shared-libraries easier (see README.ENGINE).
2049 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2050 implementations into applications that are completely implemented in
2051 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2052 commands that can be used to configure what shared-library to load and
2053 to control aspects of the way it is handled. Also, made an update to
2054 the README.ENGINE file that brings its information up-to-date and
2055 provides some information and instructions on the "dynamic" ENGINE
2056 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2059 *) Make it possible to unload ranges of ERR strings with a new
2060 "ERR_unload_strings" function.
2063 *) Add a copy() function to EVP_MD.
2066 *) Make EVP_MD routines take a context pointer instead of just the
2067 md_data void pointer.
2070 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2071 that the digest can only process a single chunk of data
2072 (typically because it is provided by a piece of
2073 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2074 is only going to provide a single chunk of data, and hence the
2075 framework needn't accumulate the data for oneshot drivers.
2078 *) As with "ERR", make it possible to replace the underlying "ex_data"
2079 functions. This change also alters the storage and management of global
2080 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2081 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2082 index counters. The API functions that use this state have been changed
2083 to take a "class_index" rather than pointers to the class's local STACK
2084 and counter, and there is now an API function to dynamically create new
2085 classes. This centralisation allows us to (a) plug a lot of the
2086 thread-safety problems that existed, and (b) makes it possible to clean
2087 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2088 such data would previously have always leaked in application code and
2089 workarounds were in place to make the memory debugging turn a blind eye
2090 to it. Application code that doesn't use this new function will still
2091 leak as before, but their memory debugging output will announce it now
2092 rather than letting it slide.
2094 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2095 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2096 has a return value to indicate success or failure.
2099 *) Make it possible to replace the underlying "ERR" functions such that the
2100 global state (2 LHASH tables and 2 locks) is only used by the "default"
2101 implementation. This change also adds two functions to "get" and "set"
2102 the implementation prior to it being automatically set the first time
2103 any other ERR function takes place. Ie. an application can call "get",
2104 pass the return value to a module it has just loaded, and that module
2105 can call its own "set" function using that value. This means the
2106 module's "ERR" operations will use (and modify) the error state in the
2107 application and not in its own statically linked copy of OpenSSL code.
2110 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2111 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2112 the operation, and provides a more encapsulated way for external code
2113 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2114 to use these functions rather than manually incrementing the counts.
2116 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2119 *) Add EVP test program.
2122 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2125 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2126 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2127 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2128 These allow a CRL to be built without having to access X509_CRL fields
2129 directly. Modify 'ca' application to use new functions.
2132 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2133 bug workarounds. Rollback attack detection is a security feature.
2134 The problem will only arise on OpenSSL servers when TLSv1 is not
2135 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2136 Software authors not wanting to support TLSv1 will have special reasons
2137 for their choice and can explicitly enable this option.
2138 [Bodo Moeller, Lutz Jaenicke]
2140 *) Rationalise EVP so it can be extended: don't include a union of
2141 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2142 (similar to those existing for EVP_CIPHER_CTX).
2147 EVP_MD_CTX_init(&md); /* new function call */
2148 EVP_DigestInit(&md, EVP_sha1());
2149 EVP_DigestUpdate(&md, in, len);
2150 EVP_DigestFinal(&md, out, NULL);
2151 EVP_MD_CTX_cleanup(&md); /* new function call */
2155 *) Make DES key schedule conform to the usual scheme, as well as
2156 correcting its structure. This means that calls to DES functions
2157 now have to pass a pointer to a des_key_schedule instead of a
2158 plain des_key_schedule (which was actually always a pointer
2161 des_key_schedule ks;
2163 des_set_key_checked(..., &ks);
2164 des_ncbc_encrypt(..., &ks, ...);
2166 (Note that a later change renames 'des_...' into 'DES_...'.)
2169 *) Initial reduction of linker bloat: the use of some functions, such as
2170 PEM causes large amounts of unused functions to be linked in due to
2171 poor organisation. For example pem_all.c contains every PEM function
2172 which has a knock on effect of linking in large amounts of (unused)
2173 ASN1 code. Grouping together similar functions and splitting unrelated
2174 functions prevents this.
2177 *) Cleanup of EVP macros.
2180 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2181 correct _ecb suffix.
2184 *) Add initial OCSP responder support to ocsp application. The
2185 revocation information is handled using the text based index
2186 use by the ca application. The responder can either handle
2187 requests generated internally, supplied in files (for example
2188 via a CGI script) or using an internal minimal server.
2191 *) Add configuration choices to get zlib compression for TLS.
2194 *) Changes to Kerberos SSL for RFC 2712 compliance:
2195 1. Implemented real KerberosWrapper, instead of just using
2196 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2197 2. Implemented optional authenticator field of KerberosWrapper.
2199 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2200 and authenticator structs; see crypto/krb5/.
2202 Generalized Kerberos calls to support multiple Kerberos libraries.
2203 [Vern Staats <staatsvr@asc.hpc.mil>,
2204 Jeffrey Altman <jaltman@columbia.edu>
2205 via Richard Levitte]
2207 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2208 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2209 values for each of the key sizes rather than having just
2210 parameters (and 'speed' generating keys each time).
2213 *) Speed up EVP routines.
2216 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2217 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2218 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2219 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2221 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2222 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2223 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2226 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2228 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2231 *) Added the OS2-EMX target.
2232 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2234 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2235 to support NCONF routines in extension code. New function CONF_set_nconf()
2236 to allow functions which take an NCONF to also handle the old LHASH
2237 structure: this means that the old CONF compatible routines can be
2238 retained (in particular wrt extensions) without having to duplicate the
2239 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2242 *) Enhance the general user interface with mechanisms for inner control
2243 and with possibilities to have yes/no kind of prompts.
2246 *) Change all calls to low level digest routines in the library and
2247 applications to use EVP. Add missing calls to HMAC_cleanup() and
2248 don't assume HMAC_CTX can be copied using memcpy().
2249 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2251 *) Add the possibility to control engines through control names but with
2252 arbitrary arguments instead of just a string.
2253 Change the key loaders to take a UI_METHOD instead of a callback
2254 function pointer. NOTE: this breaks binary compatibility with earlier
2255 versions of OpenSSL [engine].
2256 Adapt the nCipher code for these new conditions and add a card insertion
2260 *) Enhance the general user interface with mechanisms to better support
2261 dialog box interfaces, application-defined prompts, the possibility
2262 to use defaults (for example default passwords from somewhere else)
2263 and interrupts/cancellations.
2266 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2267 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2270 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2271 tidy up some unnecessarily weird code in 'sk_new()').
2272 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2274 *) Change the key loading routines for ENGINEs to use the same kind
2275 callback (pem_password_cb) as all other routines that need this
2279 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2280 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2281 than this minimum value is recommended.
2284 *) New random seeder for OpenVMS, using the system process statistics
2285 that are easily reachable.
2288 *) Windows apparently can't transparently handle global
2289 variables defined in DLLs. Initialisations such as:
2291 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2293 wont compile. This is used by the any applications that need to
2294 declare their own ASN1 modules. This was fixed by adding the option
2295 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2296 needed for static libraries under Win32.
2299 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2300 setting of purpose and trust fields. New X509_STORE trust and
2301 purpose functions and tidy up setting in other SSL functions.
2304 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2305 structure. These are inherited by X509_STORE_CTX when it is
2306 initialised. This allows various defaults to be set in the
2307 X509_STORE structure (such as flags for CRL checking and custom
2308 purpose or trust settings) for functions which only use X509_STORE_CTX
2309 internally such as S/MIME.
2311 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2312 trust settings if they are not set in X509_STORE. This allows X509_STORE
2313 purposes and trust (in S/MIME for example) to override any set by default.
2315 Add command line options for CRL checking to smime, s_client and s_server
2319 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2320 are set then the CRL is looked up in the X509_STORE structure and
2321 its validity and signature checked, then if the certificate is found
2322 in the CRL the verify fails with a revoked error.
2324 Various new CRL related callbacks added to X509_STORE_CTX structure.
2326 Command line options added to 'verify' application to support this.
2328 This needs some additional work, such as being able to handle multiple
2329 CRLs with different times, extension based lookup (rather than just
2330 by subject name) and ultimately more complete V2 CRL extension
2334 *) Add a general user interface API (crypto/ui/). This is designed
2335 to replace things like des_read_password and friends (backward
2336 compatibility functions using this new API are provided).
2337 The purpose is to remove prompting functions from the DES code
2338 section as well as provide for prompting through dialog boxes in
2339 a window system and the like.
2342 *) Add "ex_data" support to ENGINE so implementations can add state at a
2343 per-structure level rather than having to store it globally.
2346 *) Make it possible for ENGINE structures to be copied when retrieved by
2347 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2348 This causes the "original" ENGINE structure to act like a template,
2349 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2350 operational state can be localised to each ENGINE structure, despite the
2351 fact they all share the same "methods". New ENGINE structures returned in
2352 this case have no functional references and the return value is the single
2353 structural reference. This matches the single structural reference returned
2354 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2358 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2359 needs to match any other type at all we need to manually clear the
2363 *) Changes to the "openssl engine" utility to include;
2364 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2365 about an ENGINE's available control commands.
2366 - executing control commands from command line arguments using the
2367 '-pre' and '-post' switches. '-post' is only used if '-t' is
2368 specified and the ENGINE is successfully initialised. The syntax for
2369 the individual commands are colon-separated, for example;
2370 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2373 *) New dynamic control command support for ENGINEs. ENGINEs can now
2374 declare their own commands (numbers), names (strings), descriptions,
2375 and input types for run-time discovery by calling applications. A
2376 subset of these commands are implicitly classed as "executable"
2377 depending on their input type, and only these can be invoked through
2378 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2379 can be based on user input, config files, etc). The distinction is
2380 that "executable" commands cannot return anything other than a boolean
2381 result and can only support numeric or string input, whereas some
2382 discoverable commands may only be for direct use through
2383 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2384 pointers, or other custom uses. The "executable" commands are to
2385 support parameterisations of ENGINE behaviour that can be
2386 unambiguously defined by ENGINEs and used consistently across any
2387 OpenSSL-based application. Commands have been added to all the
2388 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2389 control over shared-library paths without source code alterations.
2392 *) Changed all ENGINE implementations to dynamically allocate their
2393 ENGINEs rather than declaring them statically. Apart from this being
2394 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2395 this also allows the implementations to compile without using the
2396 internal engine_int.h header.
2399 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2400 'const' value. Any code that should be able to modify a RAND_METHOD
2401 should already have non-const pointers to it (ie. they should only
2402 modify their own ones).
2405 *) Made a variety of little tweaks to the ENGINE code.
2406 - "atalla" and "ubsec" string definitions were moved from header files
2407 to C code. "nuron" string definitions were placed in variables
2408 rather than hard-coded - allowing parameterisation of these values
2409 later on via ctrl() commands.
2410 - Removed unused "#if 0"'d code.
2411 - Fixed engine list iteration code so it uses ENGINE_free() to release
2412 structural references.
2413 - Constified the RAND_METHOD element of ENGINE structures.
2414 - Constified various get/set functions as appropriate and added
2415 missing functions (including a catch-all ENGINE_cpy that duplicates
2416 all ENGINE values onto a new ENGINE except reference counts/state).
2417 - Removed NULL parameter checks in get/set functions. Setting a method
2418 or function to NULL is a way of cancelling out a previously set
2419 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2420 and doesn't justify the extra error symbols and code.
2421 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2422 flags from engine_int.h to engine.h.
2423 - Changed prototypes for ENGINE handler functions (init(), finish(),
2424 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2427 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2428 to the algorithm using long division. The binary algorithm can be
2429 used only if the modulus is odd. On 32-bit systems, it is faster
2430 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2431 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2432 up to 450 bits. In 64-bit environments, the binary algorithm
2433 appears to be advantageous for much longer moduli; here we use it
2434 for moduli up to 2048 bits.
2437 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2438 could not support the combine flag in choice fields.
2441 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2442 extensions from a certificate request to the certificate.
2445 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2446 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2447 file: this allows the display of the certificate about to be
2448 signed to be customised, to allow certain fields to be included
2449 or excluded and extension details. The old system didn't display
2450 multicharacter strings properly, omitted fields not in the policy
2451 and couldn't display additional details such as extensions.
2454 *) Function EC_POINTs_mul for multiple scalar multiplication
2455 of an arbitrary number of elliptic curve points
2456 \sum scalars[i]*points[i],
2457 optionally including the generator defined for the EC_GROUP:
2458 scalar*generator + \sum scalars[i]*points[i].
2460 EC_POINT_mul is a simple wrapper function for the typical case
2461 that the point list has just one item (besides the optional
2465 *) First EC_METHODs for curves over GF(p):
2467 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2468 operations and provides various method functions that can also
2469 operate with faster implementations of modular arithmetic.
2471 EC_GFp_mont_method() reuses most functions that are part of
2472 EC_GFp_simple_method, but uses Montgomery arithmetic.
2474 [Bodo Moeller; point addition and point doubling
2475 implementation directly derived from source code provided by
2476 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2478 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2479 crypto/ec/ec_lib.c):
2481 Curves are EC_GROUP objects (with an optional group generator)
2482 based on EC_METHODs that are built into the library.
2484 Points are EC_POINT objects based on EC_GROUP objects.
2486 Most of the framework would be able to handle curves over arbitrary
2487 finite fields, but as there are no obvious types for fields other
2488 than GF(p), some functions are limited to that for now.
2491 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2492 that the file contains a complete HTTP response.
2495 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2496 change the def and num file printf format specifier from "%-40sXXX"
2497 to "%-39s XXX". The latter will always guarantee a space after the
2498 field while the former will cause them to run together if the field
2499 is 40 of more characters long.
2502 *) Constify the cipher and digest 'method' functions and structures
2503 and modify related functions to take constant EVP_MD and EVP_CIPHER
2507 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2508 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2511 *) Modify EVP_Digest*() routines so they now return values. Although the
2512 internal software routines can never fail additional hardware versions
2516 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2518 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2519 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2522 ERR_R_NESTED_ASN1_ERROR
2524 ERR_R_MISSING_ASN1_EOS
2525 were 4 .. 9, conflicting with
2526 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2528 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2529 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2531 Add new error code 'ERR_R_INTERNAL_ERROR'.
2534 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2538 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2539 sets the subject name for a new request or supersedes the
2540 subject name in a given request. Formats that can be parsed are
2541 'CN=Some Name, OU=myOU, C=IT'
2543 'CN=Some Name/OU=myOU/C=IT'.
2545 Add options '-batch' and '-verbose' to 'openssl req'.
2546 [Massimiliano Pala <madwolf@hackmasters.net>]
2548 *) Introduce the possibility to access global variables through
2549 functions on platform were that's the best way to handle exporting
2550 global variables in shared libraries. To enable this functionality,
2551 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2552 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2553 is normally done by Configure or something similar).
2555 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2556 in the source file (foo.c) like this:
2558 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2559 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2561 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2562 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2564 OPENSSL_DECLARE_GLOBAL(int,foo);
2565 #define foo OPENSSL_GLOBAL_REF(foo)
2566 OPENSSL_DECLARE_GLOBAL(double,bar);
2567 #define bar OPENSSL_GLOBAL_REF(bar)
2569 The #defines are very important, and therefore so is including the
2570 header file everywhere where the defined globals are used.
2572 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2573 of ASN.1 items, but that structure is a bit different.
2575 The largest change is in util/mkdef.pl which has been enhanced with
2576 better and easier to understand logic to choose which symbols should
2577 go into the Windows .def files as well as a number of fixes and code
2578 cleanup (among others, algorithm keywords are now sorted
2579 lexicographically to avoid constant rewrites).
2582 *) In BN_div() keep a copy of the sign of 'num' before writing the
2583 result to 'rm' because if rm==num the value will be overwritten
2584 and produce the wrong result if 'num' is negative: this caused
2585 problems with BN_mod() and BN_nnmod().
2588 *) Function OCSP_request_verify(). This checks the signature on an
2589 OCSP request and verifies the signer certificate. The signer
2590 certificate is just checked for a generic purpose and OCSP request
2594 *) Add OCSP_check_validity() function to check the validity of OCSP
2595 responses. OCSP responses are prepared in real time and may only
2596 be a few seconds old. Simply checking that the current time lies
2597 between thisUpdate and nextUpdate max reject otherwise valid responses
2598 caused by either OCSP responder or client clock inaccuracy. Instead
2599 we allow thisUpdate and nextUpdate to fall within a certain period of
2600 the current time. The age of the response can also optionally be
2601 checked. Two new options -validity_period and -status_age added to
2605 *) If signature or public key algorithm is unrecognized print out its
2606 OID rather that just UNKNOWN.
2609 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2610 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2611 ID to be generated from the issuer certificate alone which can then be
2612 passed to OCSP_id_issuer_cmp().
2615 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
2616 ASN1 modules to export functions returning ASN1_ITEM pointers
2617 instead of the ASN1_ITEM structures themselves. This adds several
2618 new macros which allow the underlying ASN1 function/structure to
2619 be accessed transparently. As a result code should not use ASN1_ITEM
2620 references directly (such as &X509_it) but instead use the relevant
2621 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
2622 use of the new ASN1 code on platforms where exporting structures
2623 is problematical (for example in shared libraries) but exporting
2624 functions returning pointers to structures is not.
2627 *) Add support for overriding the generation of SSL/TLS session IDs.
2628 These callbacks can be registered either in an SSL_CTX or per SSL.
2629 The purpose of this is to allow applications to control, if they wish,
2630 the arbitrary values chosen for use as session IDs, particularly as it
2631 can be useful for session caching in multiple-server environments. A
2632 command-line switch for testing this (and any client code that wishes
2633 to use such a feature) has been added to "s_server".
2634 [Geoff Thorpe, Lutz Jaenicke]
2636 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
2637 of the form '#if defined(...) || defined(...) || ...' and
2638 '#if !defined(...) && !defined(...) && ...'. This also avoids
2639 the growing number of special cases it was previously handling.
2642 *) Make all configuration macros available for application by making
2643 sure they are available in opensslconf.h, by giving them names starting
2644 with "OPENSSL_" to avoid conflicts with other packages and by making
2645 sure e_os2.h will cover all platform-specific cases together with
2647 Additionally, it is now possible to define configuration/platform-
2648 specific names (called "system identities"). In the C code, these
2649 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
2650 macro with the name beginning with "OPENSSL_SYS_", which is determined
2651 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
2655 *) New option -set_serial to 'req' and 'x509' this allows the serial
2656 number to use to be specified on the command line. Previously self
2657 signed certificates were hard coded with serial number 0 and the
2658 CA options of 'x509' had to use a serial number in a file which was
2662 *) New options to 'ca' utility to support V2 CRL entry extensions.
2663 Currently CRL reason, invalidity date and hold instruction are
2664 supported. Add new CRL extensions to V3 code and some new objects.
2667 *) New function EVP_CIPHER_CTX_set_padding() this is used to
2668 disable standard block padding (aka PKCS#5 padding) in the EVP
2669 API, which was previously mandatory. This means that the data is
2670 not padded in any way and so the total length much be a multiple
2671 of the block size, otherwise an error occurs.
2674 *) Initial (incomplete) OCSP SSL support.
2677 *) New function OCSP_parse_url(). This splits up a URL into its host,
2678 port and path components: primarily to parse OCSP URLs. New -url
2679 option to ocsp utility.
2682 *) New nonce behavior. The return value of OCSP_check_nonce() now
2683 reflects the various checks performed. Applications can decide
2684 whether to tolerate certain situations such as an absent nonce
2685 in a response when one was present in a request: the ocsp application
2686 just prints out a warning. New function OCSP_add1_basic_nonce()
2687 this is to allow responders to include a nonce in a response even if
2688 the request is nonce-less.
2691 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
2692 skipped when using openssl x509 multiple times on a single input file,
2693 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
2696 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
2697 set string type: to handle setting ASN1_TIME structures. Fix ca
2698 utility to correctly initialize revocation date of CRLs.
2701 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
2702 the clients preferred ciphersuites and rather use its own preferences.
2703 Should help to work around M$ SGC (Server Gated Cryptography) bug in
2704 Internet Explorer by ensuring unchanged hash method during stepup.
2705 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
2708 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
2709 to aes and add a new 'exist' option to print out symbols that don't
2713 *) Additional options to ocsp utility to allow flags to be set and
2714 additional certificates supplied.
2717 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
2718 OCSP client a number of certificate to only verify the response
2722 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
2723 handle the new API. Currently only ECB, CBC modes supported. Add new
2726 Add TLS AES ciphersuites as described in RFC3268, "Advanced
2727 Encryption Standard (AES) Ciphersuites for Transport Layer
2728 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
2729 not enabled by default and were not part of the "ALL" ciphersuite
2730 alias because they were not yet official; they could be
2731 explicitly requested by specifying the "AESdraft" ciphersuite
2732 group alias. In the final release of OpenSSL 0.9.7, the group
2733 alias is called "AES" and is part of "ALL".)
2734 [Ben Laurie, Steve Henson, Bodo Moeller]
2736 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
2737 request to response.
2740 *) Functions for OCSP responders. OCSP_request_onereq_count(),
2741 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
2742 extract information from a certificate request. OCSP_response_create()
2743 creates a response and optionally adds a basic response structure.
2744 OCSP_basic_add1_status() adds a complete single response to a basic
2745 response and returns the OCSP_SINGLERESP structure just added (to allow
2746 extensions to be included for example). OCSP_basic_add1_cert() adds a
2747 certificate to a basic response and OCSP_basic_sign() signs a basic
2748 response with various flags. New helper functions ASN1_TIME_check()
2749 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
2750 (converts ASN1_TIME to GeneralizedTime).
2753 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
2754 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
2755 structure from a certificate. X509_pubkey_digest() digests the public_key
2756 contents: this is used in various key identifiers.
2759 *) Make sk_sort() tolerate a NULL argument.
2760 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
2762 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
2763 passed by the function are trusted implicitly. If any of them signed the
2764 response then it is assumed to be valid and is not verified.
2767 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
2768 to data. This was previously part of the PKCS7 ASN1 code. This
2769 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
2770 [Steve Henson, reported by Kenneth R. Robinette
2771 <support@securenetterm.com>]
2773 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
2774 routines: without these tracing memory leaks is very painful.
2775 Fix leaks in PKCS12 and PKCS7 routines.
2778 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
2779 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
2780 effectively meant GeneralizedTime would never be used. Now it
2781 is initialised to -1 but X509_time_adj() now has to check the value
2782 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
2783 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
2784 [Steve Henson, reported by Kenneth R. Robinette
2785 <support@securenetterm.com>]
2787 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
2788 result in a zero length in the ASN1_INTEGER structure which was
2789 not consistent with the structure when d2i_ASN1_INTEGER() was used
2790 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
2791 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
2792 where it did not print out a minus for negative ASN1_INTEGER.
2795 *) Add summary printout to ocsp utility. The various functions which
2796 convert status values to strings have been renamed to:
2797 OCSP_response_status_str(), OCSP_cert_status_str() and
2798 OCSP_crl_reason_str() and are no longer static. New options
2799 to verify nonce values and to disable verification. OCSP response
2800 printout format cleaned up.
2803 *) Add additional OCSP certificate checks. These are those specified
2804 in RFC2560. This consists of two separate checks: the CA of the
2805 certificate being checked must either be the OCSP signer certificate
2806 or the issuer of the OCSP signer certificate. In the latter case the
2807 OCSP signer certificate must contain the OCSP signing extended key
2808 usage. This check is performed by attempting to match the OCSP
2809 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
2810 in the OCSP_CERTID structures of the response.
2813 *) Initial OCSP certificate verification added to OCSP_basic_verify()
2814 and related routines. This uses the standard OpenSSL certificate
2815 verify routines to perform initial checks (just CA validity) and
2816 to obtain the certificate chain. Then additional checks will be
2817 performed on the chain. Currently the root CA is checked to see
2818 if it is explicitly trusted for OCSP signing. This is used to set
2819 a root CA as a global signing root: that is any certificate that
2820 chains to that CA is an acceptable OCSP signing certificate.
2823 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
2824 extensions from a separate configuration file.
2825 As when reading extensions from the main configuration file,
2826 the '-extensions ...' option may be used for specifying the
2828 [Massimiliano Pala <madwolf@comune.modena.it>]
2830 *) New OCSP utility. Allows OCSP requests to be generated or
2831 read. The request can be sent to a responder and the output
2832 parsed, outputed or printed in text form. Not complete yet:
2833 still needs to check the OCSP response validity.
2836 *) New subcommands for 'openssl ca':
2837 'openssl ca -status <serial>' prints the status of the cert with
2838 the given serial number (according to the index file).
2839 'openssl ca -updatedb' updates the expiry status of certificates
2841 [Massimiliano Pala <madwolf@comune.modena.it>]
2843 *) New '-newreq-nodes' command option to CA.pl. This is like
2844 '-newreq', but calls 'openssl req' with the '-nodes' option
2845 so that the resulting key is not encrypted.
2846 [Damien Miller <djm@mindrot.org>]
2848 *) New configuration for the GNU Hurd.
2849 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
2851 *) Initial code to implement OCSP basic response verify. This
2852 is currently incomplete. Currently just finds the signer's
2853 certificate and verifies the signature on the response.
2856 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
2857 value of OPENSSLDIR. This is available via the new '-d' option
2858 to 'openssl version', and is also included in 'openssl version -a'.
2861 *) Allowing defining memory allocation callbacks that will be given
2862 file name and line number information in additional arguments
2863 (a const char* and an int). The basic functionality remains, as
2864 well as the original possibility to just replace malloc(),
2865 realloc() and free() by functions that do not know about these
2866 additional arguments. To register and find out the current
2867 settings for extended allocation functions, the following
2868 functions are provided:
2870 CRYPTO_set_mem_ex_functions
2871 CRYPTO_set_locked_mem_ex_functions
2872 CRYPTO_get_mem_ex_functions
2873 CRYPTO_get_locked_mem_ex_functions
2875 These work the same way as CRYPTO_set_mem_functions and friends.
2876 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
2877 extended allocation function is enabled.
2878 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
2879 a conventional allocation function is enabled.
2880 [Richard Levitte, Bodo Moeller]
2882 *) Finish off removing the remaining LHASH function pointer casts.
2883 There should no longer be any prototype-casting required when using
2884 the LHASH abstraction, and any casts that remain are "bugs". See
2885 the callback types and macros at the head of lhash.h for details
2886 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
2889 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
2890 If /dev/[u]random devices are not available or do not return enough
2891 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
2893 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
2894 /etc/entropy will be queried once each in this sequence, quering stops
2895 when enough entropy was collected without querying more sockets.
2898 *) Change the Unix RAND_poll() variant to be able to poll several
2899 random devices, as specified by DEVRANDOM, until a sufficient amount
2900 of data has been collected. We spend at most 10 ms on each file
2901 (select timeout) and read in non-blocking mode. DEVRANDOM now
2902 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
2903 (previously it was just the string "/dev/urandom"), so on typical
2904 platforms the 10 ms delay will never occur.
2905 Also separate out the Unix variant to its own file, rand_unix.c.
2906 For VMS, there's a currently-empty rand_vms.c.
2909 *) Move OCSP client related routines to ocsp_cl.c. These
2910 provide utility functions which an application needing
2911 to issue a request to an OCSP responder and analyse the
2912 response will typically need: as opposed to those which an
2913 OCSP responder itself would need which will be added later.
2915 OCSP_request_sign() signs an OCSP request with an API similar
2916 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
2917 response. OCSP_response_get1_basic() extracts basic response
2918 from response. OCSP_resp_find_status(): finds and extracts status
2919 information from an OCSP_CERTID structure (which will be created
2920 when the request structure is built). These are built from lower
2921 level functions which work on OCSP_SINGLERESP structures but
2922 wont normally be used unless the application wishes to examine
2923 extensions in the OCSP response for example.
2925 Replace nonce routines with a pair of functions.
2926 OCSP_request_add1_nonce() adds a nonce value and optionally
2927 generates a random value. OCSP_check_nonce() checks the
2928 validity of the nonce in an OCSP response.
2931 *) Change function OCSP_request_add() to OCSP_request_add0_id().
2932 This doesn't copy the supplied OCSP_CERTID and avoids the
2933 need to free up the newly created id. Change return type
2934 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
2935 This can then be used to add extensions to the request.
2936 Deleted OCSP_request_new(), since most of its functionality
2937 is now in OCSP_REQUEST_new() (and the case insensitive name
2938 clash) apart from the ability to set the request name which
2939 will be added elsewhere.
2942 *) Update OCSP API. Remove obsolete extensions argument from
2943 various functions. Extensions are now handled using the new
2944 OCSP extension code. New simple OCSP HTTP function which
2945 can be used to send requests and parse the response.
2948 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
2949 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
2950 uses the special reorder version of SET OF to sort the attributes
2951 and reorder them to match the encoded order. This resolves a long
2952 standing problem: a verify on a PKCS7 structure just after signing
2953 it used to fail because the attribute order did not match the
2954 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
2955 it uses the received order. This is necessary to tolerate some broken
2956 software that does not order SET OF. This is handled by encoding
2957 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
2958 to produce the required SET OF.
2961 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
2962 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
2963 files to get correct declarations of the ASN.1 item variables.
2966 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
2967 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
2968 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
2969 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
2970 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
2971 ASN1_ITEM and no wrapper functions.
2974 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
2975 replace the old function pointer based I/O routines. Change most of
2976 the *_d2i_bio() and *_d2i_fp() functions to use these.
2979 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
2980 lines, recognice more "algorithms" that can be deselected, and make
2981 it complain about algorithm deselection that isn't recognised.
2984 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
2985 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
2986 to use new functions. Add NO_ASN1_OLD which can be set to remove
2987 some old style ASN1 functions: this can be used to determine if old
2988 code will still work when these eventually go away.
2991 *) New extension functions for OCSP structures, these follow the
2992 same conventions as certificates and CRLs.
2995 *) New function X509V3_add1_i2d(). This automatically encodes and
2996 adds an extension. Its behaviour can be customised with various
2997 flags to append, replace or delete. Various wrappers added for
2998 certifcates and CRLs.
3001 *) Fix to avoid calling the underlying ASN1 print routine when
3002 an extension cannot be parsed. Correct a typo in the
3003 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3006 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3007 entries for variables.
3010 *) Add functionality to apps/openssl.c for detecting locking
3011 problems: As the program is single-threaded, all we have
3012 to do is register a locking callback using an array for
3013 storing which locks are currently held by the program.
3016 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3017 SSL_get_ex_data_X509_STORE_idx(), which is used in
3018 ssl_verify_cert_chain() and thus can be called at any time
3019 during TLS/SSL handshakes so that thread-safety is essential.
3020 Unfortunately, the ex_data design is not at all suited
3021 for multi-threaded use, so it probably should be abolished.
3024 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3025 [Broadcom, tweaked and integrated by Geoff Thorpe]
3027 *) Move common extension printing code to new function
3028 X509V3_print_extensions(). Reorganise OCSP print routines and
3029 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3032 *) New function X509_signature_print() to remove duplication in some
3036 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3037 set (this was treated exactly the same as SET OF previously). This
3038 is used to reorder the STACK representing the structure to match the
3039 encoding. This will be used to get round a problem where a PKCS7
3040 structure which was signed could not be verified because the STACK
3041 order did not reflect the encoded order.
3044 *) Reimplement the OCSP ASN1 module using the new code.
3047 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3048 for its ASN1 operations. The old style function pointers still exist
3049 for now but they will eventually go away.
3052 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3053 completely replaces the old ASN1 functionality with a table driven
3054 encoder and decoder which interprets an ASN1_ITEM structure describing
3055 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3056 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3057 has also been converted to the new form.
3060 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3061 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3062 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3063 for negative moduli.
3066 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3067 of not touching the result's sign bit.
3070 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3074 *) Changed the LHASH code to use prototypes for callbacks, and created
3075 macros to declare and implement thin (optionally static) functions
3076 that provide type-safety and avoid function pointer casting for the
3077 type-specific callbacks.
3080 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3082 [Veers Staats <staatsvr@asc.hpc.mil>,
3083 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3085 *) Reformat the FAQ so the different questions and answers can be divided
3086 in sections depending on the subject.
3089 *) Have the zlib compression code load ZLIB.DLL dynamically under
3093 *) New function BN_mod_sqrt for computing square roots modulo a prime
3094 (using the probabilistic Tonelli-Shanks algorithm unless
3095 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3096 be handled deterministically).
3097 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3099 *) Make BN_mod_inverse faster by explicitly handling small quotients
3100 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3101 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3104 *) New function BN_kronecker.
3107 *) Fix BN_gcd so that it works on negative inputs; the result is
3108 positive unless both parameters are zero.
3109 Previously something reasonably close to an infinite loop was
3110 possible because numbers could be growing instead of shrinking
3111 in the implementation of Euclid's algorithm.
3114 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3115 sign of the number in question.
3117 Fix BN_is_word(a,w) to work correctly for w == 0.
3119 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3120 because its test if the absolute value of 'a' equals 'w'.
3121 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3122 it exists mostly for use in the implementations of BN_is_zero(),
3123 BN_is_one(), and BN_is_word().
3126 *) New function BN_swap.
3129 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3130 the exponentiation functions are more likely to produce reasonable
3131 results on negative inputs.
3134 *) Change BN_mod_mul so that the result is always non-negative.
3135 Previously, it could be negative if one of the factors was negative;
3136 I don't think anyone really wanted that behaviour.
3139 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3140 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3141 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3142 and add new functions:
3151 BN_mod_lshift1_quick
3155 These functions always generate non-negative results.
3157 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3158 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3160 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3161 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3162 be reduced modulo m.
3163 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3166 The following entry accidentily appeared in the CHANGES file
3167 distributed with OpenSSL 0.9.7. The modifications described in
3168 it do *not* apply to OpenSSL 0.9.7.
3170 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3171 was actually never needed) and in BN_mul(). The removal in BN_mul()
3172 required a small change in bn_mul_part_recursive() and the addition
3173 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3174 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3175 bn_sub_words() and bn_add_words() except they take arrays with
3180 *) In 'openssl passwd', verify passwords read from the terminal
3181 unless the '-salt' option is used (which usually means that
3182 verification would just waste user's time since the resulting
3183 hash is going to be compared with some given password hash)
3184 or the new '-noverify' option is used.
3186 This is an incompatible change, but it does not affect
3187 non-interactive use of 'openssl passwd' (passwords on the command
3188 line, '-stdin' option, '-in ...' option) and thus should not
3192 *) Remove all references to RSAref, since there's no more need for it.
3195 *) Make DSO load along a path given through an environment variable
3196 (SHLIB_PATH) with shl_load().
3199 *) Constify the ENGINE code as a result of BIGNUM constification.
3200 Also constify the RSA code and most things related to it. In a
3201 few places, most notable in the depth of the ASN.1 code, ugly
3202 casts back to non-const were required (to be solved at a later
3206 *) Make it so the openssl application has all engines loaded by default.
3209 *) Constify the BIGNUM routines a little more.
3212 *) Add the following functions:
3214 ENGINE_load_cswift()
3216 ENGINE_load_atalla()
3218 ENGINE_load_builtin_engines()
3220 That way, an application can itself choose if external engines that
3221 are built-in in OpenSSL shall ever be used or not. The benefit is
3222 that applications won't have to be linked with libdl or other dso
3223 libraries unless it's really needed.
3225 Changed 'openssl engine' to load all engines on demand.
3226 Changed the engine header files to avoid the duplication of some
3227 declarations (they differed!).
3230 *) 'openssl engine' can now list capabilities.
3233 *) Better error reporting in 'openssl engine'.
3236 *) Never call load_dh_param(NULL) in s_server.
3239 *) Add engine application. It can currently list engines by name and
3240 identity, and test if they are actually available.
3243 *) Improve RPM specification file by forcing symbolic linking and making
3244 sure the installed documentation is also owned by root.root.
3245 [Damien Miller <djm@mindrot.org>]
3247 *) Give the OpenSSL applications more possibilities to make use of
3248 keys (public as well as private) handled by engines.
3251 *) Add OCSP code that comes from CertCo.
3254 *) Add VMS support for the Rijndael code.
3257 *) Added untested support for Nuron crypto accelerator.
3260 *) Add support for external cryptographic devices. This code was
3261 previously distributed separately as the "engine" branch.
3262 [Geoff Thorpe, Richard Levitte]
3264 *) Rework the filename-translation in the DSO code. It is now possible to
3265 have far greater control over how a "name" is turned into a filename
3266 depending on the operating environment and any oddities about the
3267 different shared library filenames on each system.
3270 *) Support threads on FreeBSD-elf in Configure.
3273 *) Fix for SHA1 assembly problem with MASM: it produces
3274 warnings about corrupt line number information when assembling
3275 with debugging information. This is caused by the overlapping
3277 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3280 NCONF_get_number() has no error checking at all. As a replacement,
3281 NCONF_get_number_e() is defined (_e for "error checking") and is
3282 promoted strongly. The old NCONF_get_number is kept around for
3283 binary backward compatibility.
3284 Make it possible for methods to load from something other than a BIO,
3285 by providing a function pointer that is given a name instead of a BIO.
3286 For example, this could be used to load configuration data from an
3290 *) Fix for non blocking accept BIOs. Added new I/O special reason
3291 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3292 with non blocking I/O was not possible because no retry code was
3293 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3297 *) Added the beginnings of Rijndael support.
3300 *) Fix for bug in DirectoryString mask setting. Add support for
3301 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3302 to allow certificate printing to more controllable, additional
3303 'certopt' option to 'x509' to allow new printing options to be
3307 *) Clean old EAY MD5 hack from e_os.h.
3310 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3312 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3313 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3314 [Joe Orton, Steve Henson]
3316 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3318 *) Fix additional bug revealed by the NISCC test suite:
3320 Stop bug triggering large recursion when presented with
3321 certain ASN.1 tags (CVE-2003-0851)
3324 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3326 *) Fix various bugs revealed by running the NISCC test suite:
3328 Stop out of bounds reads in the ASN1 code when presented with
3329 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3331 If verify callback ignores invalid public key errors don't try to check
3332 certificate signature with the NULL public key.
3336 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3337 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3341 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3342 extra data after the compression methods not only for TLS 1.0
3343 but also for SSL 3.0 (as required by the specification).
3344 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3346 *) Change X509_certificate_type() to mark the key as exported/exportable
3347 when it's 512 *bits* long, not 512 bytes.
3350 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3352 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3353 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3354 a protocol version number mismatch like a decryption error
3355 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3358 *) Turn on RSA blinding by default in the default implementation
3359 to avoid a timing attack. Applications that don't want it can call
3360 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3361 They would be ill-advised to do so in most cases.
3362 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3364 *) Change RSA blinding code so that it works when the PRNG is not
3365 seeded (in this case, the secret RSA exponent is abused as
3366 an unpredictable seed -- if it is not unpredictable, there
3367 is no point in blinding anyway). Make RSA blinding thread-safe
3368 by remembering the creator's thread ID in rsa->blinding and
3369 having all other threads use local one-time blinding factors
3370 (this requires more computation than sharing rsa->blinding, but
3371 avoids excessive locking; and if an RSA object is not shared
3372 between threads, blinding will still be very fast).
3375 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3377 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3378 via timing by performing a MAC computation even if incorrrect
3379 block cipher padding has been found. This is a countermeasure
3380 against active attacks where the attacker has to distinguish
3381 between bad padding and a MAC verification error. (CVE-2003-0078)
3383 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3384 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3385 Martin Vuagnoux (EPFL, Ilion)]
3387 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3389 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3390 memory from it's contents. This is done with a counter that will
3391 place alternating values in each byte. This can be used to solve
3392 two issues: 1) the removal of calls to memset() by highly optimizing
3393 compilers, and 2) cleansing with other values than 0, since those can
3394 be read through on certain media, for example a swap space on disk.
3397 *) Bugfix: client side session caching did not work with external caching,
3398 because the session->cipher setting was not restored when reloading
3399 from the external cache. This problem was masked, when
3400 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3401 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3404 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3405 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3406 [Zeev Lieber <zeev-l@yahoo.com>]
3408 *) Undo an undocumented change introduced in 0.9.6e which caused
3409 repeated calls to OpenSSL_add_all_ciphers() and
3410 OpenSSL_add_all_digests() to be ignored, even after calling
3414 *) Change the default configuration reader to deal with last line not
3415 being properly terminated.
3418 *) Change X509_NAME_cmp() so it applies the special rules on handling
3419 DN values that are of type PrintableString, as well as RDNs of type
3420 emailAddress where the value has the type ia5String.
3421 [stefank@valicert.com via Richard Levitte]
3423 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3424 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3425 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3426 the bitwise-OR of the two for use by the majority of applications
3427 wanting this behaviour, and update the docs. The documented
3428 behaviour and actual behaviour were inconsistent and had been
3429 changing anyway, so this is more a bug-fix than a behavioural
3431 [Geoff Thorpe, diagnosed by Nadav Har'El]
3433 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3434 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3437 *) Fix initialization code race conditions in
3438 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3439 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3440 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3441 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3442 ssl2_get_cipher_by_char(),
3443 ssl3_get_cipher_by_char().
3444 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3446 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3447 the cached sessions are flushed, as the remove_cb() might use ex_data
3448 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3449 (see [openssl.org #212]).
3450 [Geoff Thorpe, Lutz Jaenicke]
3452 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3453 length, instead of the encoding length to d2i_ASN1_OBJECT.
3456 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3458 *) [In 0.9.6g-engine release:]
3459 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3460 [Lynn Gazis <lgazis@rainbow.com>]
3462 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3464 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3465 and get fix the header length calculation.
3466 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3467 Alon Kantor <alonk@checkpoint.com> (and others),
3470 *) Use proper error handling instead of 'assertions' in buffer
3471 overflow checks added in 0.9.6e. This prevents DoS (the
3472 assertions could call abort()).
3473 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3475 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3477 *) Add various sanity checks to asn1_get_length() to reject
3478 the ASN1 length bytes if they exceed sizeof(long), will appear
3479 negative or the content length exceeds the length of the
3481 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3483 *) Fix cipher selection routines: ciphers without encryption had no flags
3484 for the cipher strength set and where therefore not handled correctly
3485 by the selection routines (PR #130).
3488 *) Fix EVP_dsa_sha macro.
3492 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3493 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3494 that was added in OpenSSL 0.9.6d.
3496 As the countermeasure turned out to be incompatible with some
3497 broken SSL implementations, the new option is part of SSL_OP_ALL.
3498 SSL_OP_ALL is usually employed when compatibility with weird SSL
3499 implementations is desired (e.g. '-bugs' option to 's_client' and
3500 's_server'), so the new option is automatically set in many
3504 *) Changes in security patch:
3506 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3507 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3508 Air Force Materiel Command, USAF, under agreement number
3511 *) Add various sanity checks to asn1_get_length() to reject
3512 the ASN1 length bytes if they exceed sizeof(long), will appear
3513 negative or the content length exceeds the length of the
3514 supplied buffer. (CVE-2002-0659)
3515 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3517 *) Assertions for various potential buffer overflows, not known to
3519 [Ben Laurie (CHATS)]
3521 *) Various temporary buffers to hold ASCII versions of integers were
3522 too small for 64 bit platforms. (CVE-2002-0655)
3523 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3525 *) Remote buffer overflow in SSL3 protocol - an attacker could
3526 supply an oversized session ID to a client. (CVE-2002-0656)
3527 [Ben Laurie (CHATS)]
3529 *) Remote buffer overflow in SSL2 protocol - an attacker could
3530 supply an oversized client master key. (CVE-2002-0656)
3531 [Ben Laurie (CHATS)]
3533 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3535 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3536 encoded as NULL) with id-dsa-with-sha1.
3537 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3539 *) Check various X509_...() return values in apps/req.c.
3540 [Nils Larsch <nla@trustcenter.de>]
3542 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3543 an end-of-file condition would erronously be flagged, when the CRLF
3544 was just at the end of a processed block. The bug was discovered when
3545 processing data through a buffering memory BIO handing the data to a
3546 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3547 <ptsekov@syntrex.com> and Nedelcho Stanev.
3550 *) Implement a countermeasure against a vulnerability recently found
3551 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3552 before application data chunks to avoid the use of known IVs
3553 with data potentially chosen by the attacker.
3556 *) Fix length checks in ssl3_get_client_hello().
3559 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3560 to prevent ssl3_read_internal() from incorrectly assuming that
3561 ssl3_read_bytes() found application data while handshake
3562 processing was enabled when in fact s->s3->in_read_app_data was
3563 merely automatically cleared during the initial handshake.
3564 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3566 *) Fix object definitions for Private and Enterprise: they were not
3567 recognized in their shortname (=lowercase) representation. Extend
3568 obj_dat.pl to issue an error when using undefined keywords instead
3569 of silently ignoring the problem (Svenning Sorensen
3570 <sss@sss.dnsalias.net>).
3573 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3574 generators, i.e. generators other than 2 and 5. (Previously, the
3575 code did not properly initialise the 'add' and 'rem' values to
3576 BN_generate_prime().)
3578 In the new general case, we do not insist that 'generator' is
3579 actually a primitive root: This requirement is rather pointless;
3580 a generator of the order-q subgroup is just as good, if not
3584 *) Map new X509 verification errors to alerts. Discovered and submitted by
3585 Tom Wu <tom@arcot.com>.
3588 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
3589 returning non-zero before the data has been completely received
3590 when using non-blocking I/O.
3591 [Bodo Moeller; problem pointed out by John Hughes]
3593 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
3594 [Ben Laurie, Lutz Jaenicke]
3596 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
3597 Yoram Zahavi <YoramZ@gilian.com>).
3600 *) Add information about CygWin 1.3 and on, and preserve proper
3601 configuration for the versions before that.
3602 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3604 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
3605 check whether we deal with a copy of a session and do not delete from
3606 the cache in this case. Problem reported by "Izhar Shoshani Levi"
3607 <izhar@checkpoint.com>.
3610 *) Do not store session data into the internal session cache, if it
3611 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
3612 flag is set). Proposed by Aslam <aslam@funk.com>.
3615 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
3619 *) [In 0.9.6d-engine release:]
3620 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3621 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3623 *) Add the configuration target linux-s390x.
3624 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
3626 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
3627 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
3628 variable as an indication that a ClientHello message has been
3629 received. As the flag value will be lost between multiple
3630 invocations of ssl3_accept when using non-blocking I/O, the
3631 function may not be aware that a handshake has actually taken
3632 place, thus preventing a new session from being added to the
3635 To avoid this problem, we now set s->new_session to 2 instead of
3636 using a local variable.
3637 [Lutz Jaenicke, Bodo Moeller]
3639 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
3640 if the SSL_R_LENGTH_MISMATCH error is detected.
3641 [Geoff Thorpe, Bodo Moeller]
3643 *) New 'shared_ldflag' column in Configure platform table.
3646 *) Fix EVP_CIPHER_mode macro.
3647 ["Dan S. Camper" <dan@bti.net>]
3649 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
3650 type, we must throw them away by setting rr->length to 0.
3651 [D P Chang <dpc@qualys.com>]
3653 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
3655 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
3656 <Dominikus.Scherkl@biodata.com>. (The previous implementation
3657 worked incorrectly for those cases where range = 10..._2 and
3658 3*range is two bits longer than range.)
3661 *) Only add signing time to PKCS7 structures if it is not already
3665 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
3666 OBJ_ld_ce should be OBJ_id_ce.
3667 Also some ip-pda OIDs in crypto/objects/objects.txt were
3668 incorrect (cf. RFC 3039).
3669 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
3671 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
3672 returns early because it has nothing to do.
3673 [Andy Schneider <andy.schneider@bjss.co.uk>]
3675 *) [In 0.9.6c-engine release:]
3676 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
3677 [Andy Schneider <andy.schneider@bjss.co.uk>]
3679 *) [In 0.9.6c-engine release:]
3680 Add support for Cryptographic Appliance's keyserver technology.
3681 (Use engine 'keyclient')
3682 [Cryptographic Appliances and Geoff Thorpe]
3684 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
3685 is called via tools/c89.sh because arguments have to be
3686 rearranged (all '-L' options must appear before the first object
3688 [Richard Shapiro <rshapiro@abinitio.com>]
3690 *) [In 0.9.6c-engine release:]
3691 Add support for Broadcom crypto accelerator cards, backported
3693 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
3695 *) [In 0.9.6c-engine release:]
3696 Add support for SureWare crypto accelerator cards from
3697 Baltimore Technologies. (Use engine 'sureware')
3698 [Baltimore Technologies and Mark Cox]
3700 *) [In 0.9.6c-engine release:]
3701 Add support for crypto accelerator cards from Accelerated
3702 Encryption Processing, www.aep.ie. (Use engine 'aep')
3703 [AEP Inc. and Mark Cox]
3705 *) Add a configuration entry for gcc on UnixWare.
3706 [Gary Benson <gbenson@redhat.com>]
3708 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
3709 messages are stored in a single piece (fixed-length part and
3710 variable-length part combined) and fix various bugs found on the way.
3713 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
3714 instead. BIO_gethostbyname() does not know what timeouts are
3715 appropriate, so entries would stay in cache even when they have
3717 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
3719 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
3720 faced with a pathologically small ClientHello fragment that does
3721 not contain client_version: Instead of aborting with an error,
3722 simply choose the highest available protocol version (i.e.,
3723 TLS 1.0 unless it is disabled). In practice, ClientHello
3724 messages are never sent like this, but this change gives us
3725 strictly correct behaviour at least for TLS.
3728 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
3729 never resets s->method to s->ctx->method when called from within
3730 one of the SSL handshake functions.
3731 [Bodo Moeller; problem pointed out by Niko Baric]
3733 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
3734 (sent using the client's version number) if client_version is
3735 smaller than the protocol version in use. Also change
3736 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
3737 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
3738 the client will at least see that alert.
3741 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
3745 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
3746 client receives HelloRequest while in a handshake.
3747 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
3749 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
3750 should end in 'break', not 'goto end' which circuments various
3751 cleanups done in state SSL_ST_OK. But session related stuff
3752 must be disabled for SSL_ST_OK in the case that we just sent a
3755 Also avoid some overhead by not calling ssl_init_wbio_buffer()
3756 before just sending a HelloRequest.
3757 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
3759 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
3760 reveal whether illegal block cipher padding was found or a MAC
3761 verification error occured. (Neither SSLerr() codes nor alerts
3762 are directly visible to potential attackers, but the information
3763 may leak via logfiles.)
3765 Similar changes are not required for the SSL 2.0 implementation
3766 because the number of padding bytes is sent in clear for SSL 2.0,
3767 and the extra bytes are just ignored. However ssl/s2_pkt.c
3768 failed to verify that the purported number of padding bytes is in
3772 *) Add OpenUNIX-8 support including shared libraries
3773 (Boyd Lynn Gerber <gerberb@zenez.com>).
3776 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
3777 'wristwatch attack' using huge encoding parameters (cf.
3778 James H. Manger's CRYPTO 2001 paper). Note that the
3779 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
3780 encoding parameters and hence was not vulnerable.
3783 *) BN_sqr() bug fix.
3784 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
3786 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
3787 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
3788 followed by modular reduction.
3789 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
3791 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
3792 equivalent based on BN_pseudo_rand() instead of BN_rand().
3795 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
3796 This function was broken, as the check for a new client hello message
3797 to handle SGC did not allow these large messages.
3798 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
3801 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
3804 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
3805 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
3808 *) Rework the configuration and shared library support for Tru64 Unix.
3809 The configuration part makes use of modern compiler features and
3810 still retains old compiler behavior for those that run older versions
3811 of the OS. The shared library support part includes a variant that
3812 uses the RPATH feature, and is available through the special
3813 configuration target "alpha-cc-rpath", which will never be selected
3815 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
3817 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
3818 with the same message size as in ssl3_get_certificate_request().
3819 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
3820 messages might inadvertently be reject as too long.
3821 [Petr Lampa <lampa@fee.vutbr.cz>]
3823 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
3826 *) Modified SSL library such that the verify_callback that has been set
3827 specificly for an SSL object with SSL_set_verify() is actually being
3828 used. Before the change, a verify_callback set with this function was
3829 ignored and the verify_callback() set in the SSL_CTX at the time of
3830 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
3831 to allow the necessary settings.
3834 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
3835 explicitly to NULL, as at least on Solaris 8 this seems not always to be
3836 done automatically (in contradiction to the requirements of the C
3837 standard). This made problems when used from OpenSSH.
3840 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
3841 dh->length and always used
3843 BN_rand_range(priv_key, dh->p).
3845 BN_rand_range() is not necessary for Diffie-Hellman, and this
3846 specific range makes Diffie-Hellman unnecessarily inefficient if
3847 dh->length (recommended exponent length) is much smaller than the
3848 length of dh->p. We could use BN_rand_range() if the order of
3849 the subgroup was stored in the DH structure, but we only have
3854 BN_rand(priv_key, l, ...)
3856 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
3862 RSA_eay_public_encrypt
3863 RSA_eay_private_decrypt
3864 RSA_eay_private_encrypt (signing)
3865 RSA_eay_public_decrypt (signature verification)
3867 (default implementations for RSA_public_encrypt,
3868 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
3869 always reject numbers >= n.
3872 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
3873 to synchronize access to 'locking_thread'. This is necessary on
3874 systems where access to 'locking_thread' (an 'unsigned long'
3875 variable) is not atomic.
3878 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
3879 *before* setting the 'crypto_lock_rand' flag. The previous code had
3880 a race condition if 0 is a valid thread ID.
3881 [Travis Vitek <vitek@roguewave.com>]
3883 *) Add support for shared libraries under Irix.
3884 [Albert Chin-A-Young <china@thewrittenword.com>]
3886 *) Add configuration option to build on Linux on both big-endian and
3888 [Ralf Baechle <ralf@uni-koblenz.de>]
3890 *) Add the possibility to create shared libraries on HP-UX.
3893 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
3895 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
3896 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
3897 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
3898 PRNG state recovery was possible based on the output of
3899 one PRNG request appropriately sized to gain knowledge on
3900 'md' followed by enough consecutive 1-byte PRNG requests
3901 to traverse all of 'state'.
3903 1. When updating 'md_local' (the current thread's copy of 'md')
3904 during PRNG output generation, hash all of the previous
3905 'md_local' value, not just the half used for PRNG output.
3907 2. Make the number of bytes from 'state' included into the hash
3908 independent from the number of PRNG bytes requested.
3910 The first measure alone would be sufficient to avoid
3911 Markku-Juhani's attack. (Actually it had never occurred
3912 to me that the half of 'md_local' used for chaining was the
3913 half from which PRNG output bytes were taken -- I had always
3914 assumed that the secret half would be used.) The second
3915 measure makes sure that additional data from 'state' is never
3916 mixed into 'md_local' in small portions; this heuristically
3917 further strengthens the PRNG.
3920 *) Fix crypto/bn/asm/mips3.s.
3923 *) When only the key is given to "enc", the IV is undefined. Print out
3924 an error message in this case.
3927 *) Handle special case when X509_NAME is empty in X509 printing routines.
3930 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
3931 positive and less than q.
3934 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
3935 used: it isn't thread safe and the add_lock_callback should handle
3937 [Paul Rose <Paul.Rose@bridge.com>]
3939 *) Verify that incoming data obeys the block size in
3940 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
3944 [Ulf Möller, Bodo Möller]
3946 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
3947 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
3948 when fixing the server behaviour for backwards-compatible 'client
3949 hello' messages. (Note that the attack is impractical against
3950 SSL 3.0 and TLS 1.0 anyway because length and version checking
3951 means that the probability of guessing a valid ciphertext is
3952 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
3955 Before 0.9.5, the countermeasure (hide the error by generating a
3956 random 'decryption result') did not work properly because
3957 ERR_clear_error() was missing, meaning that SSL_get_error() would
3958 detect the supposedly ignored error.
3960 Both problems are now fixed.
3963 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
3964 (previously it was 1024).
3967 *) Fix for compatibility mode trust settings: ignore trust settings
3968 unless some valid trust or reject settings are present.
3971 *) Fix for blowfish EVP: its a variable length cipher.
3974 *) Fix various bugs related to DSA S/MIME verification. Handle missing
3975 parameters in DSA public key structures and return an error in the
3976 DSA routines if parameters are absent.
3979 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
3980 in the current directory if neither $RANDFILE nor $HOME was set.
3981 RAND_file_name() in 0.9.6a returned NULL in this case. This has
3982 caused some confusion to Windows users who haven't defined $HOME.
3983 Thus RAND_file_name() is changed again: e_os.h can define a
3984 DEFAULT_HOME, which will be used if $HOME is not set.
3985 For Windows, we use "C:"; on other platforms, we still require
3986 environment variables.
3988 *) Move 'if (!initialized) RAND_poll()' into regions protected by
3989 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
3990 having multiple threads call RAND_poll() concurrently.
3993 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
3994 combination of a flag and a thread ID variable.
3995 Otherwise while one thread is in ssleay_rand_bytes (which sets the
3996 flag), *other* threads can enter ssleay_add_bytes without obeying
3997 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
3998 that they do not hold after the first thread unsets add_do_not_lock).
4001 *) Change bctest again: '-x' expressions are not available in all
4005 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4007 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4008 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4010 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4011 the default extension for executables, if any. Also, make the perl
4012 scripts that use symlink() to test if it really exists and use "cp"
4013 if it doesn't. All this made OpenSSL compilable and installable in
4017 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4018 If SEQUENCE is length is indefinite just set c->slen to the total
4019 amount of data available.
4020 [Steve Henson, reported by shige@FreeBSD.org]
4021 [This change does not apply to 0.9.7.]
4023 *) Change bctest to avoid here-documents inside command substitution
4024 (workaround for FreeBSD /bin/sh bug).
4025 For compatibility with Ultrix, avoid shell functions (introduced
4026 in the bctest version that searches along $PATH).
4029 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4030 with des_encrypt() defined on some operating systems, like Solaris
4034 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4035 On the Importance of Eliminating Errors in Cryptographic
4036 Computations, J. Cryptology 14 (2001) 2, 101-119,
4037 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4040 *) MIPS assembler BIGNUM division bug fix.
4043 *) Disabled incorrect Alpha assembler code.
4046 *) Fix PKCS#7 decode routines so they correctly update the length
4047 after reading an EOC for the EXPLICIT tag.
4049 [This change does not apply to 0.9.7.]
4051 *) Fix bug in PKCS#12 key generation routines. This was triggered
4052 if a 3DES key was generated with a 0 initial byte. Include
4053 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4054 (but broken) behaviour.
4057 *) Enhance bctest to search for a working bc along $PATH and print
4059 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4061 *) Fix memory leaks in err.c: free err_data string if necessary;
4062 don't write to the wrong index in ERR_set_error_data.
4065 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4069 *) Replace rdtsc with _emit statements for VC++ version 5.
4070 [Jeremy Cooper <jeremy@baymoo.org>]
4072 *) Make it possible to reuse SSLv2 sessions.
4075 *) In copy_email() check for >= 0 as a return value for
4076 X509_NAME_get_index_by_NID() since 0 is a valid index.
4077 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4079 *) Avoid coredump with unsupported or invalid public keys by checking if
4080 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4081 PKCS7_verify() fails with non detached data.
4084 *) Don't use getenv in library functions when run as setuid/setgid.
4085 New function OPENSSL_issetugid().
4088 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4089 due to incorrect handling of multi-threading:
4091 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4093 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4095 3. Count how many times MemCheck_off() has been called so that
4096 nested use can be treated correctly. This also avoids
4097 inband-signalling in the previous code (which relied on the
4098 assumption that thread ID 0 is impossible).
4101 *) Add "-rand" option also to s_client and s_server.
4104 *) Fix CPU detection on Irix 6.x.
4105 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4106 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4108 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4111 [This change does not apply to 0.9.7.]
4113 *) Use the cached encoding of an X509_NAME structure rather than
4114 copying it. This is apparently the reason for the libsafe "errors"
4115 but the code is actually correct.
4118 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4119 Bleichenbacher's DSA attack.
4120 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4121 to be set and top=0 forces the highest bit to be set; top=-1 is new
4122 and leaves the highest bit random.
4123 [Ulf Moeller, Bodo Moeller]
4125 *) In the NCONF_...-based implementations for CONF_... queries
4126 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4127 a temporary CONF structure with the data component set to NULL
4128 (which gives segmentation faults in lh_retrieve).
4129 Instead, use NULL for the CONF pointer in CONF_get_string and
4130 CONF_get_number (which may use environment variables) and directly
4131 return NULL from CONF_get_section.
4134 *) Fix potential buffer overrun for EBCDIC.
4137 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4138 keyUsage if basicConstraints absent for a CA.
4141 *) Make SMIME_write_PKCS7() write mail header values with a format that
4142 is more generally accepted (no spaces before the semicolon), since
4143 some programs can't parse those values properly otherwise. Also make
4144 sure BIO's that break lines after each write do not create invalid
4148 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4149 macros previously used would not encode an empty SEQUENCE OF
4150 and break the signature.
4152 [This change does not apply to 0.9.7.]
4154 *) Zero the premaster secret after deriving the master secret in
4158 *) Add some EVP_add_digest_alias registrations (as found in
4159 OpenSSL_add_all_digests()) to SSL_library_init()
4160 aka OpenSSL_add_ssl_algorithms(). This provides improved
4161 compatibility with peers using X.509 certificates
4162 with unconventional AlgorithmIdentifier OIDs.
4165 *) Fix for Irix with NO_ASM.
4166 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4168 *) ./config script fixes.
4169 [Ulf Moeller, Richard Levitte]
4171 *) Fix 'openssl passwd -1'.
4174 *) Change PKCS12_key_gen_asc() so it can cope with non null
4175 terminated strings whose length is passed in the passlen
4176 parameter, for example from PEM callbacks. This was done
4177 by adding an extra length parameter to asc2uni().
4178 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4180 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4181 call failed, free the DSA structure.
4184 *) Fix to uni2asc() to cope with zero length Unicode strings.
4185 These are present in some PKCS#12 files.
4188 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4189 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4190 when writing a 32767 byte record.
4191 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4193 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4194 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4196 (RSA objects have a reference count access to which is protected
4197 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4198 so they are meant to be shared between threads.)
4199 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4200 "Reddie, Steven" <Steven.Reddie@ca.com>]
4202 *) Fix a deadlock in CRYPTO_mem_leaks().
4205 *) Use better test patterns in bntest.
4208 *) rand_win.c fix for Borland C.
4211 *) BN_rshift bugfix for n == 0.
4214 *) Add a 'bctest' script that checks for some known 'bc' bugs
4215 so that 'make test' does not abort just because 'bc' is broken.
4218 *) Store verify_result within SSL_SESSION also for client side to
4219 avoid potential security hole. (Re-used sessions on the client side
4220 always resulted in verify_result==X509_V_OK, not using the original
4221 result of the server certificate verification.)
4224 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4225 SSL3_RT_APPLICATION_DATA, return 0.
4226 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4230 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4231 releases, have been re-implemented by renaming the previous
4232 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4233 and ssl3_read_internal, respectively, and adding 'peek' parameters
4234 to them. The new ssl[23]_{read,peek} functions are calls to
4235 ssl[23]_read_internal with the 'peek' flag set appropriately.
4236 A 'peek' parameter has also been added to ssl3_read_bytes, which
4237 does the actual work for ssl3_read_internal.
4240 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4241 the method-specific "init()" handler. Also clean up ex_data after
4242 calling the method-specific "finish()" handler. Previously, this was
4243 happening the other way round.
4246 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4247 The previous value, 12, was not always sufficient for BN_mod_exp().
4250 *) Make sure that shared libraries get the internal name engine with
4251 the full version number and not just 0. This should mark the
4252 shared libraries as not backward compatible. Of course, this should
4253 be changed again when we can guarantee backward binary compatibility.
4256 *) Fix typo in get_cert_by_subject() in by_dir.c
4257 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4259 *) Rework the system to generate shared libraries:
4261 - Make note of the expected extension for the shared libraries and
4262 if there is a need for symbolic links from for example libcrypto.so.0
4263 to libcrypto.so.0.9.7. There is extended info in Configure for
4266 - Make as few rebuilds of the shared libraries as possible.
4268 - Still avoid linking the OpenSSL programs with the shared libraries.
4270 - When installing, install the shared libraries separately from the
4274 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4276 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4277 and not in SSL_clear because the latter is also used by the
4278 accept/connect functions; previously, the settings made by
4279 SSL_set_read_ahead would be lost during the handshake.
4280 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4282 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4283 Previously, it would create entries for disableed algorithms no
4287 *) Added several new manual pages for SSL_* function.
4290 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4292 *) In ssl23_get_client_hello, generate an error message when faced
4293 with an initial SSL 3.0/TLS record that is too small to contain the
4294 first two bytes of the ClientHello message, i.e. client_version.
4295 (Note that this is a pathologic case that probably has never happened
4296 in real life.) The previous approach was to use the version number
4297 from the record header as a substitute; but our protocol choice
4298 should not depend on that one because it is not authenticated
4299 by the Finished messages.
4302 *) More robust randomness gathering functions for Windows.
4303 [Jeffrey Altman <jaltman@columbia.edu>]
4305 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4306 not set then we don't setup the error code for issuer check errors
4307 to avoid possibly overwriting other errors which the callback does
4308 handle. If an application does set the flag then we assume it knows
4309 what it is doing and can handle the new informational codes
4313 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4314 a general "ANY" type, as such it should be able to decode anything
4315 including tagged types. However it didn't check the class so it would
4316 wrongly interpret tagged types in the same way as their universal
4317 counterpart and unknown types were just rejected. Changed so that the
4318 tagged and unknown types are handled in the same way as a SEQUENCE:
4319 that is the encoding is stored intact. There is also a new type
4320 "V_ASN1_OTHER" which is used when the class is not universal, in this
4321 case we have no idea what the actual type is so we just lump them all
4325 *) On VMS, stdout may very well lead to a file that is written to
4326 in a record-oriented fashion. That means that every write() will
4327 write a separate record, which will be read separately by the
4328 programs trying to read from it. This can be very confusing.
4330 The solution is to put a BIO filter in the way that will buffer
4331 text until a linefeed is reached, and then write everything a
4332 line at a time, so every record written will be an actual line,
4333 not chunks of lines and not (usually doesn't happen, but I've
4334 seen it once) several lines in one record. BIO_f_linebuffer() is
4337 Currently, it's a VMS-only method, because that's where it has
4338 been tested well enough.
4341 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4342 it can return incorrect results.
4343 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4344 but it was in 0.9.6-beta[12].)
4347 *) Disable the check for content being present when verifying detached
4348 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4349 include zero length content when signing messages.
4352 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4353 BIO_ctrl (for BIO pairs).
4356 *) Add DSO method for VMS.
4359 *) Bug fix: Montgomery multiplication could produce results with the
4363 *) Add RPM specification openssl.spec and modify it to build three
4364 packages. The default package contains applications, application
4365 documentation and run-time libraries. The devel package contains
4366 include files, static libraries and function documentation. The
4367 doc package contains the contents of the doc directory. The original
4368 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4371 *) Add a large number of documentation files for many SSL routines.
4372 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4374 *) Add a configuration entry for Sony News 4.
4375 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4377 *) Don't set the two most significant bits to one when generating a
4378 random number < q in the DSA library.
4381 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4382 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4383 the underlying transport is blocking) if a handshake took place.
4384 (The default behaviour is needed by applications such as s_client
4385 and s_server that use select() to determine when to use SSL_read;
4386 but for applications that know in advance when to expect data, it
4387 just makes things more complicated.)
4390 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4394 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4395 work better on such systems.
4396 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4398 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4399 Update PKCS12_parse() so it copies the friendlyName and the
4400 keyid to the certificates aux info.
4403 *) Fix bug in PKCS7_verify() which caused an infinite loop
4404 if there was more than one signature.
4405 [Sven Uszpelkat <su@celocom.de>]
4407 *) Major change in util/mkdef.pl to include extra information
4408 about each symbol, as well as presentig variables as well
4409 as functions. This change means that there's n more need
4410 to rebuild the .num files when some algorithms are excluded.
4413 *) Allow the verify time to be set by an application,
4414 rather than always using the current time.
4417 *) Phase 2 verify code reorganisation. The certificate
4418 verify code now looks up an issuer certificate by a
4419 number of criteria: subject name, authority key id
4420 and key usage. It also verifies self signed certificates
4421 by the same criteria. The main comparison function is
4422 X509_check_issued() which performs these checks.
4424 Lot of changes were necessary in order to support this
4425 without completely rewriting the lookup code.
4427 Authority and subject key identifier are now cached.
4429 The LHASH 'certs' is X509_STORE has now been replaced
4430 by a STACK_OF(X509_OBJECT). This is mainly because an
4431 LHASH can't store or retrieve multiple objects with
4432 the same hash value.
4434 As a result various functions (which were all internal
4435 use only) have changed to handle the new X509_STORE
4436 structure. This will break anything that messed round
4437 with X509_STORE internally.
4439 The functions X509_STORE_add_cert() now checks for an
4440 exact match, rather than just subject name.
4442 The X509_STORE API doesn't directly support the retrieval
4443 of multiple certificates matching a given criteria, however
4444 this can be worked round by performing a lookup first
4445 (which will fill the cache with candidate certificates)
4446 and then examining the cache for matches. This is probably
4447 the best we can do without throwing out X509_LOOKUP
4448 entirely (maybe later...).
4450 The X509_VERIFY_CTX structure has been enhanced considerably.
4452 All certificate lookup operations now go via a get_issuer()
4453 callback. Although this currently uses an X509_STORE it
4454 can be replaced by custom lookups. This is a simple way
4455 to bypass the X509_STORE hackery necessary to make this
4456 work and makes it possible to use more efficient techniques
4457 in future. A very simple version which uses a simple
4458 STACK for its trusted certificate store is also provided
4459 using X509_STORE_CTX_trusted_stack().
4461 The verify_cb() and verify() callbacks now have equivalents
4462 in the X509_STORE_CTX structure.
4464 X509_STORE_CTX also has a 'flags' field which can be used
4465 to customise the verify behaviour.
4468 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4469 excludes S/MIME capabilities.
4472 *) When a certificate request is read in keep a copy of the
4473 original encoding of the signed data and use it when outputing
4474 again. Signatures then use the original encoding rather than
4475 a decoded, encoded version which may cause problems if the
4476 request is improperly encoded.
4479 *) For consistency with other BIO_puts implementations, call
4480 buffer_write(b, ...) directly in buffer_puts instead of calling
4483 In BIO_puts, increment b->num_write as in BIO_write.
4484 [Peter.Sylvester@EdelWeb.fr]
4486 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4487 BN_zero, we may not return a BIGNUM with an array consisting of
4491 *) Avoid calling abort() from within the library when problems are
4492 detected, except if preprocessor symbols have been defined
4493 (such as REF_CHECK, BN_DEBUG etc.).
4496 *) New openssl application 'rsautl'. This utility can be
4497 used for low level RSA operations. DER public key
4498 BIO/fp routines also added.
4501 *) New Configure entry and patches for compiling on QNX 4.
4502 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4504 *) A demo state-machine implementation was sponsored by
4505 Nuron (http://www.nuron.com/) and is now available in
4506 demos/state_machine.
4509 *) New options added to the 'dgst' utility for signature
4510 generation and verification.
4513 *) Unrecognized PKCS#7 content types are now handled via a
4514 catch all ASN1_TYPE structure. This allows unsupported
4515 types to be stored as a "blob" and an application can
4516 encode and decode it manually.
4519 *) Fix various signed/unsigned issues to make a_strex.c
4521 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
4523 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
4524 length if passed a buffer. ASN1_INTEGER_to_BN failed
4525 if passed a NULL BN and its argument was negative.
4526 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
4528 *) Modification to PKCS#7 encoding routines to output definite
4529 length encoding. Since currently the whole structures are in
4530 memory there's not real point in using indefinite length
4531 constructed encoding. However if OpenSSL is compiled with
4532 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
4535 *) Added BIO_vprintf() and BIO_vsnprintf().
4538 *) Added more prefixes to parse for in the the strings written
4539 through a logging bio, to cover all the levels that are available
4540 through syslog. The prefixes are now:
4542 PANIC, EMERG, EMR => LOG_EMERG
4543 ALERT, ALR => LOG_ALERT
4544 CRIT, CRI => LOG_CRIT
4545 ERROR, ERR => LOG_ERR
4546 WARNING, WARN, WAR => LOG_WARNING
4547 NOTICE, NOTE, NOT => LOG_NOTICE
4548 INFO, INF => LOG_INFO
4549 DEBUG, DBG => LOG_DEBUG
4551 and as before, if none of those prefixes are present at the
4552 beginning of the string, LOG_ERR is chosen.
4554 On Win32, the LOG_* levels are mapped according to this:
4556 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
4557 LOG_WARNING => EVENTLOG_WARNING_TYPE
4558 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
4562 *) Made it possible to reconfigure with just the configuration
4563 argument "reconf" or "reconfigure". The command line arguments
4564 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
4565 and are retrieved from there when reconfiguring.
4569 [Assar Westerlund <assar@sics.se>, Richard Levitte]
4571 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
4574 *) The obj_dat.pl script was messing up the sorting of object
4575 names. The reason was that it compared the quoted version
4576 of strings as a result "OCSP" > "OCSP Signing" because
4577 " > SPACE. Changed script to store unquoted versions of
4578 names and add quotes on output. It was also omitting some
4579 names from the lookup table if they were given a default
4580 value (that is if SN is missing it is given the same
4581 value as LN and vice versa), these are now added on the
4582 grounds that if an object has a name we should be able to
4583 look it up. Finally added warning output when duplicate
4584 short or long names are found.
4587 *) Changes needed for Tandem NSK.
4588 [Scott Uroff <scott@xypro.com>]
4590 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
4591 RSA_padding_check_SSLv23(), special padding was never detected
4592 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
4593 version rollback attacks was not effective.
4595 In s23_clnt.c, don't use special rollback-attack detection padding
4596 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
4597 client; similarly, in s23_srvr.c, don't do the rollback check if
4598 SSL 2.0 is the only protocol enabled in the server.
4601 *) Make it possible to get hexdumps of unprintable data with 'openssl
4602 asn1parse'. By implication, the functions ASN1_parse_dump() and
4603 BIO_dump_indent() are added.
4606 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
4607 these print out strings and name structures based on various
4608 flags including RFC2253 support and proper handling of
4609 multibyte characters. Added options to the 'x509' utility
4610 to allow the various flags to be set.
4613 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
4614 Also change the functions X509_cmp_current_time() and
4615 X509_gmtime_adj() work with an ASN1_TIME structure,
4616 this will enable certificates using GeneralizedTime in validity
4617 dates to be checked.
4620 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
4621 negative public key encodings) on by default,
4622 NO_NEG_PUBKEY_BUG can be set to disable it.
4625 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
4626 content octets. An i2c_ASN1_OBJECT is unnecessary because
4627 the encoding can be trivially obtained from the structure.
4630 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
4631 not read locks (CRYPTO_r_[un]lock).
4634 *) A first attempt at creating official support for shared
4635 libraries through configuration. I've kept it so the
4636 default is static libraries only, and the OpenSSL programs
4637 are always statically linked for now, but there are
4638 preparations for dynamic linking in place.
4639 This has been tested on Linux and Tru64.
4642 *) Randomness polling function for Win9x, as described in:
4643 Peter Gutmann, Software Generation of Practically Strong
4647 *) Fix so PRNG is seeded in req if using an already existing
4651 *) New options to smime application. -inform and -outform
4652 allow alternative formats for the S/MIME message including
4653 PEM and DER. The -content option allows the content to be
4654 specified separately. This should allow things like Netscape
4655 form signing output easier to verify.
4658 *) Fix the ASN1 encoding of tags using the 'long form'.
4661 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
4662 STRING types. These convert content octets to and from the
4663 underlying type. The actual tag and length octets are
4664 already assumed to have been read in and checked. These
4665 are needed because all other string types have virtually
4666 identical handling apart from the tag. By having versions
4667 of the ASN1 functions that just operate on content octets
4668 IMPLICIT tagging can be handled properly. It also allows
4669 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
4670 and ASN1_INTEGER are identical apart from the tag.
4673 *) Change the handling of OID objects as follows:
4675 - New object identifiers are inserted in objects.txt, following
4676 the syntax given in objects.README.
4677 - objects.pl is used to process obj_mac.num and create a new
4679 - obj_dat.pl is used to create a new obj_dat.h, using the data in
4682 This is currently kind of a hack, and the perl code in objects.pl
4683 isn't very elegant, but it works as I intended. The simplest way
4684 to check that it worked correctly is to look in obj_dat.h and
4685 check the array nid_objs and make sure the objects haven't moved
4686 around (this is important!). Additions are OK, as well as
4687 consistent name changes.
4690 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
4693 *) Addition of the command line parameter '-rand file' to 'openssl req'.
4694 The given file adds to whatever has already been seeded into the
4695 random pool through the RANDFILE configuration file option or
4696 environment variable, or the default random state file.
4699 *) mkstack.pl now sorts each macro group into lexical order.
4700 Previously the output order depended on the order the files
4701 appeared in the directory, resulting in needless rewriting
4705 *) Patches to make OpenSSL compile under Win32 again. Mostly
4706 work arounds for the VC++ problem that it treats func() as
4707 func(void). Also stripped out the parts of mkdef.pl that
4708 added extra typesafe functions: these no longer exist.
4711 *) Reorganisation of the stack code. The macros are now all
4712 collected in safestack.h . Each macro is defined in terms of
4713 a "stack macro" of the form SKM_<name>(type, a, b). The
4714 DEBUG_SAFESTACK is now handled in terms of function casts,
4715 this has the advantage of retaining type safety without the
4716 use of additional functions. If DEBUG_SAFESTACK is not defined
4717 then the non typesafe macros are used instead. Also modified the
4718 mkstack.pl script to handle the new form. Needs testing to see
4719 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
4720 the default if no major problems. Similar behaviour for ASN1_SET_OF
4721 and PKCS12_STACK_OF.
4724 *) When some versions of IIS use the 'NET' form of private key the
4725 key derivation algorithm is different. Normally MD5(password) is
4726 used as a 128 bit RC4 key. In the modified case
4727 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
4728 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
4729 as the old Netscape_RSA functions except they have an additional
4730 'sgckey' parameter which uses the modified algorithm. Also added
4731 an -sgckey command line option to the rsa utility. Thanks to
4732 Adrian Peck <bertie@ncipher.com> for posting details of the modified
4733 algorithm to openssl-dev.
4736 *) The evp_local.h macros were using 'c.##kname' which resulted in
4737 invalid expansion on some systems (SCO 5.0.5 for example).
4738 Corrected to 'c.kname'.
4739 [Phillip Porch <root@theporch.com>]
4741 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
4742 a STACK of email addresses from a certificate or request, these look
4743 in the subject name and the subject alternative name extensions and
4744 omit any duplicate addresses.
4747 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
4748 This makes DSA verification about 2 % faster.
4751 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
4752 (meaning that now 2^5 values will be precomputed, which is only 4 KB
4753 plus overhead for 1024 bit moduli).
4754 This makes exponentiations about 0.5 % faster for 1024 bit
4755 exponents (as measured by "openssl speed rsa2048").
4758 *) Rename memory handling macros to avoid conflicts with other
4760 Malloc => OPENSSL_malloc
4761 Malloc_locked => OPENSSL_malloc_locked
4762 Realloc => OPENSSL_realloc
4763 Free => OPENSSL_free
4766 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
4767 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
4770 *) CygWin32 support.
4771 [John Jarvie <jjarvie@newsguy.com>]
4773 *) The type-safe stack code has been rejigged. It is now only compiled
4774 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
4775 by default all type-specific stack functions are "#define"d back to
4776 standard stack functions. This results in more streamlined output
4777 but retains the type-safety checking possibilities of the original
4781 *) The STACK code has been cleaned up, and certain type declarations
4782 that didn't make a lot of sense have been brought in line. This has
4783 also involved a cleanup of sorts in safestack.h to more correctly
4784 map type-safe stack functions onto their plain stack counterparts.
4785 This work has also resulted in a variety of "const"ifications of
4786 lots of the code, especially "_cmp" operations which should normally
4787 be prototyped with "const" parameters anyway.
4790 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
4791 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
4792 (The PRNG state consists of two parts, the large pool 'state' and 'md',
4793 where all of 'md' is used each time the PRNG is used, but 'state'
4794 is used only indexed by a cyclic counter. As entropy may not be
4795 well distributed from the beginning, 'md' is important as a
4796 chaining variable. However, the output function chains only half
4797 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
4798 all of 'md', and seeding with STATE_SIZE dummy bytes will result
4799 in all of 'state' being rewritten, with the new values depending
4800 on virtually all of 'md'. This overcomes the 80 bit limitation.)
4803 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
4804 the handshake is continued after ssl_verify_cert_chain();
4805 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
4806 can lead to 'unexplainable' connection aborts later.
4807 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
4809 *) Major EVP API cipher revision.
4810 Add hooks for extra EVP features. This allows various cipher
4811 parameters to be set in the EVP interface. Support added for variable
4812 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
4813 setting of RC2 and RC5 parameters.
4815 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
4818 Remove lots of duplicated code from the EVP library. For example *every*
4819 cipher init() function handles the 'iv' in the same way according to the
4820 cipher mode. They also all do nothing if the 'key' parameter is NULL and
4821 for CFB and OFB modes they zero ctx->num.
4823 New functionality allows removal of S/MIME code RC2 hack.
4825 Most of the routines have the same form and so can be declared in terms
4828 By shifting this to the top level EVP_CipherInit() it can be removed from
4829 all individual ciphers. If the cipher wants to handle IVs or keys
4830 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
4833 Change lots of functions like EVP_EncryptUpdate() to now return a
4834 value: although software versions of the algorithms cannot fail
4835 any installed hardware versions can.
4838 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
4839 this option is set, tolerate broken clients that send the negotiated
4840 protocol version number instead of the requested protocol version
4844 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
4845 i.e. non-zero for export ciphersuites, zero otherwise.
4846 Previous versions had this flag inverted, inconsistent with
4847 rsa_tmp_cb (..._TMP_RSA_CB).
4848 [Bodo Moeller; problem reported by Amit Chopra]
4850 *) Add missing DSA library text string. Work around for some IIS
4851 key files with invalid SEQUENCE encoding.
4854 *) Add a document (doc/standards.txt) that list all kinds of standards
4855 and so on that are implemented in OpenSSL.
4858 *) Enhance c_rehash script. Old version would mishandle certificates
4859 with the same subject name hash and wouldn't handle CRLs at all.
4860 Added -fingerprint option to crl utility, to support new c_rehash
4864 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
4867 *) Fix for SSL server purpose checking. Server checking was
4868 rejecting certificates which had extended key usage present
4869 but no ssl client purpose.
4870 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
4872 *) Make PKCS#12 code work with no password. The PKCS#12 spec
4873 is a little unclear about how a blank password is handled.
4874 Since the password in encoded as a BMPString with terminating
4875 double NULL a zero length password would end up as just the
4876 double NULL. However no password at all is different and is
4877 handled differently in the PKCS#12 key generation code. NS
4878 treats a blank password as zero length. MSIE treats it as no
4879 password on export: but it will try both on import. We now do
4880 the same: PKCS12_parse() tries zero length and no password if
4881 the password is set to "" or NULL (NULL is now a valid password:
4882 it wasn't before) as does the pkcs12 application.
4885 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
4886 perror when PEM_read_bio_X509_REQ fails, the error message must
4887 be obtained from the error queue.
4890 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
4891 it in ERR_remove_state if appropriate, and change ERR_get_state
4892 accordingly to avoid race conditions (this is necessary because
4893 thread_hash is no longer constant once set).
4896 *) Bugfix for linux-elf makefile.one.
4899 *) RSA_get_default_method() will now cause a default
4900 RSA_METHOD to be chosen if one doesn't exist already.
4901 Previously this was only set during a call to RSA_new()
4902 or RSA_new_method(NULL) meaning it was possible for
4903 RSA_get_default_method() to return NULL.
4906 *) Added native name translation to the existing DSO code
4907 that will convert (if the flag to do so is set) filenames
4908 that are sufficiently small and have no path information
4909 into a canonical native form. Eg. "blah" converted to
4910 "libblah.so" or "blah.dll" etc.
4913 *) New function ERR_error_string_n(e, buf, len) which is like
4914 ERR_error_string(e, buf), but writes at most 'len' bytes
4915 including the 0 terminator. For ERR_error_string_n, 'buf'
4917 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
4919 *) CONF library reworked to become more general. A new CONF
4920 configuration file reader "class" is implemented as well as a
4921 new functions (NCONF_*, for "New CONF") to handle it. The now
4922 old CONF_* functions are still there, but are reimplemented to
4923 work in terms of the new functions. Also, a set of functions
4924 to handle the internal storage of the configuration data is
4925 provided to make it easier to write new configuration file
4926 reader "classes" (I can definitely see something reading a
4927 configuration file in XML format, for example), called _CONF_*,
4928 or "the configuration storage API"...
4930 The new configuration file reading functions are:
4932 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
4933 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
4935 NCONF_default, NCONF_WIN32
4937 NCONF_dump_fp, NCONF_dump_bio
4939 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
4940 NCONF_new creates a new CONF object. This works in the same way
4941 as other interfaces in OpenSSL, like the BIO interface.
4942 NCONF_dump_* dump the internal storage of the configuration file,
4943 which is useful for debugging. All other functions take the same
4944 arguments as the old CONF_* functions wth the exception of the
4945 first that must be a `CONF *' instead of a `LHASH *'.
4947 To make it easer to use the new classes with the old CONF_* functions,
4948 the function CONF_set_default_method is provided.
4951 *) Add '-tls1' option to 'openssl ciphers', which was already
4952 mentioned in the documentation but had not been implemented.
4953 (This option is not yet really useful because even the additional
4954 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
4957 *) Initial DSO code added into libcrypto for letting OpenSSL (and
4958 OpenSSL-based applications) load shared libraries and bind to
4959 them in a portable way.
4960 [Geoff Thorpe, with contributions from Richard Levitte]
4962 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
4964 *) Make sure _lrotl and _lrotr are only used with MSVC.
4966 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
4967 (the default implementation of RAND_status).
4969 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
4970 to '-clrext' (= clear extensions), as intended and documented.
4971 [Bodo Moeller; inconsistency pointed out by Michael Attili
4974 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
4975 was larger than the MD block size.
4976 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
4978 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
4979 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
4980 using the passed key: if the passed key was a private key the result
4981 of X509_print(), for example, would be to print out all the private key
4985 *) des_quad_cksum() byte order bug fix.
4986 [Ulf Möller, using the problem description in krb4-0.9.7, where
4987 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
4989 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
4991 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
4993 *) For easily testing in shell scripts whether some command
4994 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
4995 returns with exit code 0 iff no command of the given name is available.
4996 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
4997 the output goes to stdout and nothing is printed to stderr.
4998 Additional arguments are always ignored.
5000 Since for each cipher there is a command of the same name,
5001 the 'no-cipher' compilation switches can be tested this way.
5003 ('openssl no-XXX' is not able to detect pseudo-commands such
5004 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5007 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5010 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5011 is set; it will be thrown away anyway because each handshake creates
5013 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5014 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5015 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5016 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5019 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5020 'Q' and 'R' lose their special meanings (quit/renegotiate).
5021 This is part of what -quiet does; unlike -quiet, -ign_eof
5022 does not suppress any output.
5025 *) Add compatibility options to the purpose and trust code. The
5026 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5027 accepts a certificate or CA, this was the previous behaviour,
5028 with all the associated security issues.
5030 X509_TRUST_COMPAT is the old trust behaviour: only and
5031 automatically trust self signed roots in certificate store. A
5032 new trust setting X509_TRUST_DEFAULT is used to specify that
5033 a purpose has no associated trust setting and it should instead
5034 use the value in the default purpose.
5037 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5038 and fix a memory leak.
5041 *) In util/mkerr.pl (which implements 'make errors'), preserve
5042 reason strings from the previous version of the .c file, as
5043 the default to have only downcase letters (and digits) in
5044 automatically generated reasons codes is not always appropriate.
5047 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5048 using strerror. Previously, ERR_reason_error_string() returned
5049 library names as reason strings for SYSerr; but SYSerr is a special
5050 case where small numbers are errno values, not library numbers.
5053 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5054 converts DSA parameters into DH parameters. (When creating parameters,
5055 DSA_generate_parameters is used.)
5058 *) Include 'length' (recommended exponent length) in C code generated
5059 by 'openssl dhparam -C'.
5062 *) The second argument to set_label in perlasm was already being used
5063 so couldn't be used as a "file scope" flag. Moved to third argument
5067 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5068 instead of RAND_bytes for encryption IVs and salts.
5071 *) Include RAND_status() into RAND_METHOD instead of implementing
5072 it only for md_rand.c Otherwise replacing the PRNG by calling
5073 RAND_set_rand_method would be impossible.
5076 *) Don't let DSA_generate_key() enter an infinite loop if the random
5077 number generation fails.
5080 *) New 'rand' application for creating pseudo-random output.
5083 *) Added configuration support for Linux/IA64
5084 [Rolf Haberrecker <rolf@suse.de>]
5086 *) Assembler module support for Mingw32.
5089 *) Shared library support for HPUX (in shlib/).
5090 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5092 *) Shared library support for Solaris gcc.
5093 [Lutz Behnke <behnke@trustcenter.de>]
5095 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5097 *) PKCS7_encrypt() was adding text MIME headers twice because they
5098 were added manually and by SMIME_crlf_copy().
5101 *) In bntest.c don't call BN_rand with zero bits argument.
5102 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5104 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5105 case was implemented. This caused BN_div_recp() to fail occasionally.
5108 *) Add an optional second argument to the set_label() in the perl
5109 assembly language builder. If this argument exists and is set
5110 to 1 it signals that the assembler should use a symbol whose
5111 scope is the entire file, not just the current function. This
5112 is needed with MASM which uses the format label:: for this scope.
5113 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5115 *) Change the ASN1 types so they are typedefs by default. Before
5116 almost all types were #define'd to ASN1_STRING which was causing
5117 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5121 *) Change names of new functions to the new get1/get0 naming
5122 convention: After 'get1', the caller owns a reference count
5123 and has to call ..._free; 'get0' returns a pointer to some
5124 data structure without incrementing reference counters.
5125 (Some of the existing 'get' functions increment a reference
5126 counter, some don't.)
5127 Similarly, 'set1' and 'add1' functions increase reference
5128 counters or duplicate objects.
5131 *) Allow for the possibility of temp RSA key generation failure:
5132 the code used to assume it always worked and crashed on failure.
5135 *) Fix potential buffer overrun problem in BIO_printf().
5136 [Ulf Möller, using public domain code by Patrick Powell; problem
5137 pointed out by David Sacerdote <das33@cornell.edu>]
5139 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5140 RAND_egd() and RAND_status(). In the command line application,
5141 the EGD socket can be specified like a seed file using RANDFILE
5145 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5146 Some CAs (e.g. Verisign) distribute certificates in this form.
5149 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5150 list to exclude them. This means that no special compilation option
5151 is needed to use anonymous DH: it just needs to be included in the
5155 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5156 EVP_MD_type. The old functionality is available in a new macro called
5157 EVP_MD_md(). Change code that uses it and update docs.
5160 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5161 where the 'void *' argument is replaced by a function pointer argument.
5162 Previously 'void *' was abused to point to functions, which works on
5163 many platforms, but is not correct. As these functions are usually
5164 called by macros defined in OpenSSL header files, most source code
5165 should work without changes.
5168 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5169 sections with information on -D... compiler switches used for
5170 compiling the library so that applications can see them. To enable
5171 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5172 must be defined. E.g.,
5173 #define OPENSSL_ALGORITHM_DEFINES
5174 #include <openssl/opensslconf.h>
5175 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5176 [Richard Levitte, Ulf and Bodo Möller]
5178 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5182 *) Change the 'other' type in certificate aux info to a STACK_OF
5183 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5184 the required ASN1 format: arbitrary types determined by an OID.
5187 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5188 argument to 'req'. This is not because the function is newer or
5189 better than others it just uses the work 'NEW' in the certificate
5190 request header lines. Some software needs this.
5193 *) Reorganise password command line arguments: now passwords can be
5194 obtained from various sources. Delete the PEM_cb function and make
5195 it the default behaviour: i.e. if the callback is NULL and the
5196 usrdata argument is not NULL interpret it as a null terminated pass
5197 phrase. If usrdata and the callback are NULL then the pass phrase
5198 is prompted for as usual.
5201 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5202 the support is automatically enabled. The resulting binaries will
5203 autodetect the card and use it if present.
5204 [Ben Laurie and Compaq Inc.]
5206 *) Work around for Netscape hang bug. This sends certificate request
5207 and server done in one record. Since this is perfectly legal in the
5208 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5209 the bugs/SSLv3 entry for more info.
5212 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5215 *) Add -rand argument to smime and pkcs12 applications and read/write
5219 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5222 *) Add command line password options to the remaining applications.
5225 *) Bug fix for BN_div_recp() for numerators with an even number of
5229 *) More tests in bntest.c, and changed test_bn output.
5232 *) ./config recognizes MacOS X now.
5235 *) Bug fix for BN_div() when the first words of num and divsor are
5236 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5239 *) Add support for various broken PKCS#8 formats, and command line
5240 options to produce them.
5243 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5244 get temporary BIGNUMs from a BN_CTX.
5247 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5251 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5252 include a #define from the old name to the new. The original intent
5253 was that statically linked binaries could for example just call
5254 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5255 link with digests. This never worked becayse SSLeay_add_all_digests()
5256 and SSLeay_add_all_ciphers() were in the same source file so calling
5257 one would link with the other. They are now in separate source files.
5260 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5263 *) Use a less unusual form of the Miller-Rabin primality test (it used
5264 a binary algorithm for exponentiation integrated into the Miller-Rabin
5265 loop, our standard modexp algorithms are faster).
5268 *) Support for the EBCDIC character set completed.
5269 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5271 *) Source code cleanups: use const where appropriate, eliminate casts,
5272 use void * instead of char * in lhash.
5275 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5276 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5277 this the server could overwrite ephemeral keys that the client
5281 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5282 using 50 iterations of the Rabin-Miller test.
5284 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5285 iterations of the Rabin-Miller test as required by the appendix
5286 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5287 As BN_is_prime_fasttest includes trial division, DSA parameter
5288 generation becomes much faster.
5290 This implies a change for the callback functions in DSA_is_prime
5291 and DSA_generate_parameters: The callback function is called once
5292 for each positive witness in the Rabin-Miller test, not just
5293 occasionally in the inner loop; and the parameters to the
5294 callback function now provide an iteration count for the outer
5295 loop rather than for the current invocation of the inner loop.
5296 DSA_generate_parameters additionally can call the callback
5297 function with an 'iteration count' of -1, meaning that a
5298 candidate has passed the trial division test (when q is generated
5299 from an application-provided seed, trial division is skipped).
5302 *) New function BN_is_prime_fasttest that optionally does trial
5303 division before starting the Rabin-Miller test and has
5304 an additional BN_CTX * argument (whereas BN_is_prime always
5305 has to allocate at least one BN_CTX).
5306 'callback(1, -1, cb_arg)' is called when a number has passed the
5307 trial division stage.
5310 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5314 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5317 *) New function BN_pseudo_rand().
5320 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5321 bignum version of BN_from_montgomery() with the working code from
5322 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5326 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5327 made it impossible to use the same SSL_SESSION data structure in
5328 SSL2 clients in multiple threads.
5331 *) The return value of RAND_load_file() no longer counts bytes obtained
5332 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5333 to seed the PRNG (previously an explicit byte count was required).
5334 [Ulf Möller, Bodo Möller]
5336 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5337 used (char *) instead of (void *) and had casts all over the place.
5340 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5343 *) Retain source code compatibility for BN_prime_checks macro:
5344 BN_is_prime(..., BN_prime_checks, ...) now uses
5345 BN_prime_checks_for_size to determine the appropriate number of
5346 Rabin-Miller iterations.
5349 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5350 DH_CHECK_P_NOT_SAFE_PRIME.
5351 (Check if this is true? OpenPGP calls them "strong".)
5354 *) Merge the functionality of "dh" and "gendh" programs into a new program
5355 "dhparam". The old programs are retained for now but will handle DH keys
5356 (instead of parameters) in future.
5359 *) Make the ciphers, s_server and s_client programs check the return values
5360 when a new cipher list is set.
5363 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5364 ciphers. Before when the 56bit ciphers were enabled the sorting was
5367 The syntax for the cipher sorting has been extended to support sorting by
5368 cipher-strength (using the strength_bits hard coded in the tables).
5369 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5371 Fix a bug in the cipher-command parser: when supplying a cipher command
5372 string with an "undefined" symbol (neither command nor alphanumeric
5373 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5374 an error is flagged.
5376 Due to the strength-sorting extension, the code of the
5377 ssl_create_cipher_list() function was completely rearranged. I hope that
5378 the readability was also increased :-)
5379 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5381 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5382 for the first serial number and places 2 in the serial number file. This
5383 avoids problems when the root CA is created with serial number zero and
5384 the first user certificate has the same issuer name and serial number
5388 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5389 the new code. Add documentation for this stuff.
5392 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5393 X509_*() to X509at_*() on the grounds that they don't handle X509
5394 structures and behave in an analagous way to the X509v3 functions:
5395 they shouldn't be called directly but wrapper functions should be used
5398 So we also now have some wrapper functions that call the X509at functions
5399 when passed certificate requests. (TO DO: similar things can be done with
5400 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5401 things. Some of these need some d2i or i2d and print functionality
5402 because they handle more complex structures.)
5405 *) Add missing #ifndefs that caused missing symbols when building libssl
5406 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5407 NO_RSA in ssl/s2*.c.
5408 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5410 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5411 has a return value which indicates the quality of the random data
5412 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5413 error queue. New function RAND_pseudo_bytes() generates output that is
5414 guaranteed to be unique but not unpredictable. RAND_add is like
5415 RAND_seed, but takes an extra argument for an entropy estimate
5416 (RAND_seed always assumes full entropy).
5419 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5420 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5421 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5422 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5423 false-positive rate of at most 2^-80 for random input.
5426 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5429 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5430 in the 0.9.5 release), this returns the chain
5431 from an X509_CTX structure with a dup of the stack and all
5432 the X509 reference counts upped: so the stack will exist
5433 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5436 Also make SSL_SESSION_print() print out the verify return
5440 *) Add manpage for the pkcs12 command. Also change the default
5441 behaviour so MAC iteration counts are used unless the new
5442 -nomaciter option is used. This improves file security and
5443 only older versions of MSIE (4.0 for example) need it.
5446 *) Honor the no-xxx Configure options when creating .DEF files.
5449 *) Add PKCS#10 attributes to field table: challengePassword,
5450 unstructuredName and unstructuredAddress. These are taken from
5451 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5452 international characters are used.
5454 More changes to X509_ATTRIBUTE code: allow the setting of types
5455 based on strings. Remove the 'loc' parameter when adding
5456 attributes because these will be a SET OF encoding which is sorted
5460 *) Initial changes to the 'req' utility to allow request generation
5461 automation. This will allow an application to just generate a template
5462 file containing all the field values and have req construct the
5465 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5466 used all over the place including certificate requests and PKCS#7
5467 structures. They are currently handled manually where necessary with
5468 some primitive wrappers for PKCS#7. The new functions behave in a
5469 manner analogous to the X509 extension functions: they allow
5470 attributes to be looked up by NID and added.
5472 Later something similar to the X509V3 code would be desirable to
5473 automatically handle the encoding, decoding and printing of the
5474 more complex types. The string types like challengePassword can
5475 be handled by the string table functions.
5477 Also modified the multi byte string table handling. Now there is
5478 a 'global mask' which masks out certain types. The table itself
5479 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5480 is useful when for example there is only one permissible type
5481 (as in countryName) and using the mask might result in no valid
5485 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5486 SSL_get_peer_finished to allow applications to obtain the latest
5487 Finished messages sent to the peer or expected from the peer,
5488 respectively. (SSL_get_peer_finished is usually the Finished message
5489 actually received from the peer, otherwise the protocol will be aborted.)
5491 As the Finished message are message digests of the complete handshake
5492 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5493 be used for external authentication procedures when the authentication
5494 provided by SSL/TLS is not desired or is not enough.
5497 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5498 the host supports BWX extension and if Compaq C is present on the
5499 $PATH. Just exploiting of the BWX extension results in 20-30%
5500 performance kick for some algorithms, e.g. DES and RC4 to mention
5501 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5505 *) Add support for MS "fast SGC". This is arguably a violation of the
5506 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
5507 weak crypto and after checking the certificate is SGC a second one
5508 with strong crypto. MS SGC stops the first handshake after receiving
5509 the server certificate message and sends a second client hello. Since
5510 a server will typically do all the time consuming operations before
5511 expecting any further messages from the client (server key exchange
5512 is the most expensive) there is little difference between the two.
5514 To get OpenSSL to support MS SGC we have to permit a second client
5515 hello message after we have sent server done. In addition we have to
5516 reset the MAC if we do get this second client hello.
5519 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
5520 if a DER encoded private key is RSA or DSA traditional format. Changed
5521 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
5522 format DER encoded private key. Newer code should use PKCS#8 format which
5523 has the key type encoded in the ASN1 structure. Added DER private key
5524 support to pkcs8 application.
5527 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
5528 ciphersuites has been selected (as required by the SSL 3/TLS 1
5529 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
5530 is set, we interpret this as a request to violate the specification
5531 (the worst that can happen is a handshake failure, and 'correct'
5532 behaviour would result in a handshake failure anyway).
5535 *) In SSL_CTX_add_session, take into account that there might be multiple
5536 SSL_SESSION structures with the same session ID (e.g. when two threads
5537 concurrently obtain them from an external cache).
5538 The internal cache can handle only one SSL_SESSION with a given ID,
5539 so if there's a conflict, we now throw out the old one to achieve
5543 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
5544 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
5545 some routines that use cipher OIDs: some ciphers do not have OIDs
5546 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
5550 *) Simplify the trust setting structure and code. Now we just have
5551 two sequences of OIDs for trusted and rejected settings. These will
5552 typically have values the same as the extended key usage extension
5553 and any application specific purposes.
5555 The trust checking code now has a default behaviour: it will just
5556 check for an object with the same NID as the passed id. Functions can
5557 be provided to override either the default behaviour or the behaviour
5558 for a given id. SSL client, server and email already have functions
5559 in place for compatibility: they check the NID and also return "trusted"
5560 if the certificate is self signed.
5563 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
5564 traditional format into an EVP_PKEY structure.
5567 *) Add a password callback function PEM_cb() which either prompts for
5568 a password if usr_data is NULL or otherwise assumes it is a null
5569 terminated password. Allow passwords to be passed on command line
5570 environment or config files in a few more utilities.
5573 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
5574 keys. Add some short names for PKCS#8 PBE algorithms and allow them
5575 to be specified on the command line for the pkcs8 and pkcs12 utilities.
5576 Update documentation.
5579 *) Support for ASN1 "NULL" type. This could be handled before by using
5580 ASN1_TYPE but there wasn't any function that would try to read a NULL
5581 and produce an error if it couldn't. For compatibility we also have
5582 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
5583 don't allocate anything because they don't need to.
5586 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
5588 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
5590 *) Rebuild of the memory allocation routines used by OpenSSL code and
5591 possibly others as well. The purpose is to make an interface that
5592 provide hooks so anyone can build a separate set of allocation and
5593 deallocation routines to be used by OpenSSL, for example memory
5594 pool implementations, or something else, which was previously hard
5595 since Malloc(), Realloc() and Free() were defined as macros having
5596 the values malloc, realloc and free, respectively (except for Win32
5597 compilations). The same is provided for memory debugging code.
5598 OpenSSL already comes with functionality to find memory leaks, but
5599 this gives people a chance to debug other memory problems.
5601 With these changes, a new set of functions and macros have appeared:
5603 CRYPTO_set_mem_debug_functions() [F]
5604 CRYPTO_get_mem_debug_functions() [F]
5605 CRYPTO_dbg_set_options() [F]
5606 CRYPTO_dbg_get_options() [F]
5607 CRYPTO_malloc_debug_init() [M]
5609 The memory debug functions are NULL by default, unless the library
5610 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
5611 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
5612 gives the standard debugging functions that come with OpenSSL) or
5613 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
5614 provided by the library user) must be used. When the standard
5615 debugging functions are used, CRYPTO_dbg_set_options can be used to
5616 request additional information:
5617 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
5618 the CRYPTO_MDEBUG_xxx macro when compiling the library.
5620 Also, things like CRYPTO_set_mem_functions will always give the
5621 expected result (the new set of functions is used for allocation
5622 and deallocation) at all times, regardless of platform and compiler
5625 To finish it up, some functions that were never use in any other
5626 way than through macros have a new API and new semantic:
5629 CRYPTO_dbg_realloc()
5632 All macros of value have retained their old syntax.
5633 [Richard Levitte and Bodo Moeller]
5635 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
5636 ordering of SMIMECapabilities wasn't in "strength order" and there
5637 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
5641 *) Some ASN1 types with illegal zero length encoding (INTEGER,
5642 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
5643 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
5645 *) Merge in my S/MIME library for OpenSSL. This provides a simple
5646 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
5647 functionality to handle multipart/signed properly) and a utility
5648 called 'smime' to call all this stuff. This is based on code I
5649 originally wrote for Celo who have kindly allowed it to be
5650 included in OpenSSL.
5653 *) Add variants des_set_key_checked and des_set_key_unchecked of
5654 des_set_key (aka des_key_sched). Global variable des_check_key
5655 decides which of these is called by des_set_key; this way
5656 des_check_key behaves as it always did, but applications and
5657 the library itself, which was buggy for des_check_key == 1,
5658 have a cleaner way to pick the version they need.
5661 *) New function PKCS12_newpass() which changes the password of a
5665 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
5666 dynamic mix. In both cases the ids can be used as an index into the
5667 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
5668 functions so they accept a list of the field values and the
5669 application doesn't need to directly manipulate the X509_TRUST
5673 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
5677 *) Modify the way the V3 extension code looks up extensions. This now
5678 works in a similar way to the object code: we have some "standard"
5679 extensions in a static table which is searched with OBJ_bsearch()
5680 and the application can add dynamic ones if needed. The file
5681 crypto/x509v3/ext_dat.h now has the info: this file needs to be
5682 updated whenever a new extension is added to the core code and kept
5683 in ext_nid order. There is a simple program 'tabtest.c' which checks
5684 this. New extensions are not added too often so this file can readily
5685 be maintained manually.
5687 There are two big advantages in doing things this way. The extensions
5688 can be looked up immediately and no longer need to be "added" using
5689 X509V3_add_standard_extensions(): this function now does nothing.
5690 [Side note: I get *lots* of email saying the extension code doesn't
5691 work because people forget to call this function]
5692 Also no dynamic allocation is done unless new extensions are added:
5693 so if we don't add custom extensions there is no need to call
5694 X509V3_EXT_cleanup().
5697 *) Modify enc utility's salting as follows: make salting the default. Add a
5698 magic header, so unsalted files fail gracefully instead of just decrypting
5699 to garbage. This is because not salting is a big security hole, so people
5700 should be discouraged from doing it.
5703 *) Fixes and enhancements to the 'x509' utility. It allowed a message
5704 digest to be passed on the command line but it only used this
5705 parameter when signing a certificate. Modified so all relevant
5706 operations are affected by the digest parameter including the
5707 -fingerprint and -x509toreq options. Also -x509toreq choked if a
5708 DSA key was used because it didn't fix the digest.
5711 *) Initial certificate chain verify code. Currently tests the untrusted
5712 certificates for consistency with the verify purpose (which is set
5713 when the X509_STORE_CTX structure is set up) and checks the pathlength.
5715 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
5716 this is because it will reject chains with invalid extensions whereas
5717 every previous version of OpenSSL and SSLeay made no checks at all.
5719 Trust code: checks the root CA for the relevant trust settings. Trust
5720 settings have an initial value consistent with the verify purpose: e.g.
5721 if the verify purpose is for SSL client use it expects the CA to be
5722 trusted for SSL client use. However the default value can be changed to
5723 permit custom trust settings: one example of this would be to only trust
5724 certificates from a specific "secure" set of CAs.
5726 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
5727 which should be used for version portability: especially since the
5728 verify structure is likely to change more often now.
5730 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
5731 to set them. If not set then assume SSL clients will verify SSL servers
5734 Two new options to the verify program: -untrusted allows a set of
5735 untrusted certificates to be passed in and -purpose which sets the
5736 intended purpose of the certificate. If a purpose is set then the
5737 new chain verify code is used to check extension consistency.
5740 *) Support for the authority information access extension.
5743 *) Modify RSA and DSA PEM read routines to transparently handle
5744 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
5745 public keys in a format compatible with certificate
5746 SubjectPublicKeyInfo structures. Unfortunately there were already
5747 functions called *_PublicKey_* which used various odd formats so
5748 these are retained for compatibility: however the DSA variants were
5749 never in a public release so they have been deleted. Changed dsa/rsa
5750 utilities to handle the new format: note no releases ever handled public
5751 keys so we should be OK.
5753 The primary motivation for this change is to avoid the same fiasco
5754 that dogs private keys: there are several incompatible private key
5755 formats some of which are standard and some OpenSSL specific and
5756 require various evil hacks to allow partial transparent handling and
5757 even then it doesn't work with DER formats. Given the option anything
5758 other than PKCS#8 should be dumped: but the other formats have to
5759 stay in the name of compatibility.
5761 With public keys and the benefit of hindsight one standard format
5762 is used which works with EVP_PKEY, RSA or DSA structures: though
5763 it clearly returns an error if you try to read the wrong kind of key.
5765 Added a -pubkey option to the 'x509' utility to output the public key.
5766 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
5767 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
5768 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
5769 that do the same as the EVP_PKEY_assign_*() except they up the
5770 reference count of the added key (they don't "swallow" the
5774 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
5775 CRLs would fail if the file contained no certificates or no CRLs:
5776 added a new function to read in both types and return the number
5777 read: this means that if none are read it will be an error. The
5778 DER versions of the certificate and CRL reader would always fail
5779 because it isn't possible to mix certificates and CRLs in DER format
5780 without choking one or the other routine. Changed this to just read
5781 a certificate: this is the best we can do. Also modified the code
5782 in apps/verify.c to take notice of return codes: it was previously
5783 attempting to read in certificates from NULL pointers and ignoring
5784 any errors: this is one reason why the cert and CRL reader seemed
5785 to work. It doesn't check return codes from the default certificate
5786 routines: these may well fail if the certificates aren't installed.
5789 *) Code to support otherName option in GeneralName.
5792 *) First update to verify code. Change the verify utility
5793 so it warns if it is passed a self signed certificate:
5794 for consistency with the normal behaviour. X509_verify
5795 has been modified to it will now verify a self signed
5796 certificate if *exactly* the same certificate appears
5797 in the store: it was previously impossible to trust a
5798 single self signed certificate. This means that:
5799 openssl verify ss.pem
5800 now gives a warning about a self signed certificate but
5801 openssl verify -CAfile ss.pem ss.pem
5805 *) For servers, store verify_result in SSL_SESSION data structure
5806 (and add it to external session representation).
5807 This is needed when client certificate verifications fails,
5808 but an application-provided verification callback (set by
5809 SSL_CTX_set_cert_verify_callback) allows accepting the session
5810 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
5811 but returns 1): When the session is reused, we have to set
5812 ssl->verify_result to the appropriate error code to avoid
5814 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
5816 *) Fix a bug in the new PKCS#7 code: it didn't consider the
5817 case in PKCS7_dataInit() where the signed PKCS7 structure
5818 didn't contain any existing data because it was being created.
5819 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
5821 *) Add a salt to the key derivation routines in enc.c. This
5822 forms the first 8 bytes of the encrypted file. Also add a
5823 -S option to allow a salt to be input on the command line.
5826 *) New function X509_cmp(). Oddly enough there wasn't a function
5827 to compare two certificates. We do this by working out the SHA1
5828 hash and comparing that. X509_cmp() will be needed by the trust
5832 *) SSL_get1_session() is like SSL_get_session(), but increments
5833 the reference count in the SSL_SESSION returned.
5834 [Geoff Thorpe <geoff@eu.c2.net>]
5836 *) Fix for 'req': it was adding a null to request attributes.
5837 Also change the X509_LOOKUP and X509_INFO code to handle
5838 certificate auxiliary information.
5841 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
5845 *) Add the possibility to add extra information to the memory leak
5846 detecting output, to form tracebacks, showing from where each
5847 allocation was originated: CRYPTO_push_info("constant string") adds
5848 the string plus current file name and line number to a per-thread
5849 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
5850 is like calling CYRPTO_pop_info() until the stack is empty.
5851 Also updated memory leak detection code to be multi-thread-safe.
5854 *) Add options -text and -noout to pkcs7 utility and delete the
5855 encryption options which never did anything. Update docs.
5858 *) Add options to some of the utilities to allow the pass phrase
5859 to be included on either the command line (not recommended on
5860 OSes like Unix) or read from the environment. Update the
5861 manpages and fix a few bugs.
5864 *) Add a few manpages for some of the openssl commands.
5867 *) Fix the -revoke option in ca. It was freeing up memory twice,
5868 leaking and not finding already revoked certificates.
5871 *) Extensive changes to support certificate auxiliary information.
5872 This involves the use of X509_CERT_AUX structure and X509_AUX
5873 functions. An X509_AUX function such as PEM_read_X509_AUX()
5874 can still read in a certificate file in the usual way but it
5875 will also read in any additional "auxiliary information". By
5876 doing things this way a fair degree of compatibility can be
5877 retained: existing certificates can have this information added
5878 using the new 'x509' options.
5880 Current auxiliary information includes an "alias" and some trust
5881 settings. The trust settings will ultimately be used in enhanced
5882 certificate chain verification routines: currently a certificate
5883 can only be trusted if it is self signed and then it is trusted
5887 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
5888 The problem was that one of the replacement routines had not been working
5889 since SSLeay releases. For now the offending routine has been replaced
5890 with non-optimised assembler. Even so, this now gives around 95%
5891 performance improvement for 1024 bit RSA signs.
5894 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
5895 handling. Most clients have the effective key size in bits equal to
5896 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
5897 A few however don't do this and instead use the size of the decrypted key
5898 to determine the RC2 key length and the AlgorithmIdentifier to determine
5899 the effective key length. In this case the effective key length can still
5900 be 40 bits but the key length can be 168 bits for example. This is fixed
5901 by manually forcing an RC2 key into the EVP_PKEY structure because the
5902 EVP code can't currently handle unusual RC2 key sizes: it always assumes
5903 the key length and effective key length are equal.
5906 *) Add a bunch of functions that should simplify the creation of
5907 X509_NAME structures. Now you should be able to do:
5908 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
5909 and have it automatically work out the correct field type and fill in
5910 the structures. The more adventurous can try:
5911 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
5912 and it will (hopefully) work out the correct multibyte encoding.
5915 *) Change the 'req' utility to use the new field handling and multibyte
5916 copy routines. Before the DN field creation was handled in an ad hoc
5917 way in req, ca, and x509 which was rather broken and didn't support
5918 BMPStrings or UTF8Strings. Since some software doesn't implement
5919 BMPStrings or UTF8Strings yet, they can be enabled using the config file
5920 using the dirstring_type option. See the new comment in the default
5921 openssl.cnf for more info.
5924 *) Make crypto/rand/md_rand.c more robust:
5925 - Assure unique random numbers after fork().
5926 - Make sure that concurrent threads access the global counter and
5927 md serializably so that we never lose entropy in them
5928 or use exactly the same state in multiple threads.
5929 Access to the large state is not always serializable because
5930 the additional locking could be a performance killer, and
5931 md should be large enough anyway.
5934 *) New file apps/app_rand.c with commonly needed functionality
5935 for handling the random seed file.
5937 Use the random seed file in some applications that previously did not:
5939 dsaparam -genkey (which also ignored its '-rand' option),
5942 x509 (when signing).
5943 Except on systems with /dev/urandom, it is crucial to have a random
5944 seed file at least for key creation, DSA signing, and for DH exchanges;
5945 for RSA signatures we could do without one.
5947 gendh and gendsa (unlike genrsa) used to read only the first byte
5948 of each file listed in the '-rand' option. The function as previously
5949 found in genrsa is now in app_rand.c and is used by all programs
5950 that support '-rand'.
5953 *) In RAND_write_file, use mode 0600 for creating files;
5954 don't just chmod when it may be too late.
5957 *) Report an error from X509_STORE_load_locations
5958 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
5961 *) New function ASN1_mbstring_copy() this copies a string in either
5962 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
5963 into an ASN1_STRING type. A mask of permissible types is passed
5964 and it chooses the "minimal" type to use or an error if not type
5968 *) Add function equivalents to the various macros in asn1.h. The old
5969 macros are retained with an M_ prefix. Code inside the library can
5970 use the M_ macros. External code (including the openssl utility)
5971 should *NOT* in order to be "shared library friendly".
5974 *) Add various functions that can check a certificate's extensions
5975 to see if it usable for various purposes such as SSL client,
5976 server or S/MIME and CAs of these types. This is currently
5977 VERY EXPERIMENTAL but will ultimately be used for certificate chain
5978 verification. Also added a -purpose flag to x509 utility to
5979 print out all the purposes.
5982 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
5986 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
5987 for, obtain and decode and extension and obtain its critical flag.
5988 This allows all the necessary extension code to be handled in a
5989 single function call.
5992 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
5993 platforms. See crypto/rc4/rc4_enc.c for further details.
5996 *) New -noout option to asn1parse. This causes no output to be produced
5997 its main use is when combined with -strparse and -out to extract data
5998 from a file (which may not be in ASN.1 format).
6001 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6002 when producing the local key id.
6003 [Richard Levitte <levitte@stacken.kth.se>]
6005 *) New option -dhparam in s_server. This allows a DH parameter file to be
6006 stated explicitly. If it is not stated then it tries the first server
6007 certificate file. The previous behaviour hard coded the filename
6011 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6012 a public key to be input or output. For example:
6013 openssl rsa -in key.pem -pubout -out pubkey.pem
6014 Also added necessary DSA public key functions to handle this.
6017 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6018 in the message. This was handled by allowing
6019 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6020 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6022 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6023 to the end of the strings whereas this didn't. This would cause problems
6024 if strings read with d2i_ASN1_bytes() were later modified.
6025 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6027 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6028 data and it contains EOF it will end up returning an error. This is
6029 caused by input 46 bytes long. The cause is due to the way base64
6030 BIOs find the start of base64 encoded data. They do this by trying a
6031 trial decode on each line until they find one that works. When they
6032 do a flag is set and it starts again knowing it can pass all the
6033 data directly through the decoder. Unfortunately it doesn't reset
6034 the context it uses. This means that if EOF is reached an attempt
6035 is made to pass two EOFs through the context and this causes the
6036 resulting error. This can also cause other problems as well. As is
6037 usual with these problems it takes *ages* to find and the fix is
6038 trivial: move one line.
6039 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6041 *) Ugly workaround to get s_client and s_server working under Windows. The
6042 old code wouldn't work because it needed to select() on sockets and the
6043 tty (for keypresses and to see if data could be written). Win32 only
6044 supports select() on sockets so we select() with a 1s timeout on the
6045 sockets and then see if any characters are waiting to be read, if none
6046 are present then we retry, we also assume we can always write data to
6047 the tty. This isn't nice because the code then blocks until we've
6048 received a complete line of data and it is effectively polling the
6049 keyboard at 1s intervals: however it's quite a bit better than not
6050 working at all :-) A dedicated Windows application might handle this
6051 with an event loop for example.
6054 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6055 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6056 will be called when RSA_sign() and RSA_verify() are used. This is useful
6057 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6058 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6059 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6060 This necessitated the support of an extra signature type NID_md5_sha1
6061 for SSL signatures and modifications to the SSL library to use it instead
6062 of calling RSA_public_decrypt() and RSA_private_encrypt().
6065 *) Add new -verify -CAfile and -CApath options to the crl program, these
6066 will lookup a CRL issuers certificate and verify the signature in a
6067 similar way to the verify program. Tidy up the crl program so it
6068 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6069 less strict. It will now permit CRL extensions even if it is not
6070 a V2 CRL: this will allow it to tolerate some broken CRLs.
6073 *) Initialize all non-automatic variables each time one of the openssl
6074 sub-programs is started (this is necessary as they may be started
6075 multiple times from the "OpenSSL>" prompt).
6076 [Lennart Bang, Bodo Moeller]
6078 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6079 removing all other RSA functionality (this is what NO_RSA does). This
6080 is so (for example) those in the US can disable those operations covered
6081 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6085 *) Non-copying interface to BIO pairs.
6086 (still largely untested)
6089 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6090 ASCII string. This was handled independently in various places before.
6093 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6094 UTF8 strings a character at a time.
6097 *) Use client_version from client hello to select the protocol
6098 (s23_srvr.c) and for RSA client key exchange verification
6099 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6102 *) Add various utility functions to handle SPKACs, these were previously
6103 handled by poking round in the structure internals. Added new function
6104 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6105 print, verify and generate SPKACs. Based on an original idea from
6106 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6109 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6112 *) Allow the config file extension section to be overwritten on the
6113 command line. Based on an original idea from Massimiliano Pala
6114 <madwolf@comune.modena.it>. The new option is called -extensions
6115 and can be applied to ca, req and x509. Also -reqexts to override
6116 the request extensions in req and -crlexts to override the crl extensions
6120 *) Add new feature to the SPKAC handling in ca. Now you can include
6121 the same field multiple times by preceding it by "XXXX." for example:
6124 this is the same syntax as used in the req config file.
6127 *) Allow certificate extensions to be added to certificate requests. These
6128 are specified in a 'req_extensions' option of the req section of the
6129 config file. They can be printed out with the -text option to req but
6130 are otherwise ignored at present.
6133 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6134 data read consists of only the final block it would not decrypted because
6135 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6136 A misplaced 'break' also meant the decrypted final block might not be
6137 copied until the next read.
6140 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6141 a few extra parameters to the DH structure: these will be useful if
6142 for example we want the value of 'q' or implement X9.42 DH.
6145 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6146 provides hooks that allow the default DSA functions or functions on a
6147 "per key" basis to be replaced. This allows hardware acceleration and
6148 hardware key storage to be handled without major modification to the
6149 library. Also added low level modexp hooks and CRYPTO_EX structure and
6150 associated functions.
6153 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6154 as "read only": it can't be written to and the buffer it points to will
6155 not be freed. Reading from a read only BIO is much more efficient than
6156 a normal memory BIO. This was added because there are several times when
6157 an area of memory needs to be read from a BIO. The previous method was
6158 to create a memory BIO and write the data to it, this results in two
6159 copies of the data and an O(n^2) reading algorithm. There is a new
6160 function BIO_new_mem_buf() which creates a read only memory BIO from
6161 an area of memory. Also modified the PKCS#7 routines to use read only
6165 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6166 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6167 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6168 but a retry condition occured while trying to read the rest.
6171 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6172 NID_pkcs7_encrypted by default: this was wrong since this should almost
6173 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6174 the encrypted data type: this is a more sensible place to put it and it
6175 allows the PKCS#12 code to be tidied up that duplicated this
6179 *) Changed obj_dat.pl script so it takes its input and output files on
6180 the command line. This should avoid shell escape redirection problems
6184 *) Initial support for certificate extension requests, these are included
6185 in things like Xenroll certificate requests. Included functions to allow
6186 extensions to be obtained and added.
6189 *) -crlf option to s_client and s_server for sending newlines as
6190 CRLF (as required by many protocols).
6193 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6195 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6196 [Ralf S. Engelschall]
6198 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6199 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6201 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6205 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6206 DH parameters/keys (q is lost during that conversion, but the resulting
6207 DH parameters contain its length).
6209 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6210 much faster than DH_generate_parameters (which creates parameters
6211 where p = 2*q + 1), and also the smaller q makes DH computations
6212 much more efficient (160-bit exponentiation instead of 1024-bit
6213 exponentiation); so this provides a convenient way to support DHE
6214 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6215 utter importance to use
6216 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6218 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6219 when such DH parameters are used, because otherwise small subgroup
6220 attacks may become possible!
6223 *) Avoid memory leak in i2d_DHparams.
6226 *) Allow the -k option to be used more than once in the enc program:
6227 this allows the same encrypted message to be read by multiple recipients.
6230 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6231 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6232 it will always use the numerical form of the OID, even if it has a short
6236 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6237 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6238 otherwise bn_mod_exp was called. In the case of hardware keys for example
6239 no private key components need be present and it might store extra data
6240 in the RSA structure, which cannot be accessed from bn_mod_exp.
6241 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6242 private key operations.
6245 *) Added support for SPARC Linux.
6248 *) pem_password_cb function type incompatibly changed from
6249 typedef int pem_password_cb(char *buf, int size, int rwflag);
6251 ....(char *buf, int size, int rwflag, void *userdata);
6252 so that applications can pass data to their callbacks:
6253 The PEM[_ASN1]_{read,write}... functions and macros now take an
6254 additional void * argument, which is just handed through whenever
6255 the password callback is called.
6256 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6258 New function SSL_CTX_set_default_passwd_cb_userdata.
6260 Compatibility note: As many C implementations push function arguments
6261 onto the stack in reverse order, the new library version is likely to
6262 interoperate with programs that have been compiled with the old
6263 pem_password_cb definition (PEM_whatever takes some data that
6264 happens to be on the stack as its last argument, and the callback
6265 just ignores this garbage); but there is no guarantee whatsoever that
6268 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6269 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6270 problems not only on Windows, but also on some Unix platforms.
6271 To avoid problematic command lines, these definitions are now in an
6272 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6273 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6276 *) MIPS III/IV assembler module is reimplemented.
6279 *) More DES library cleanups: remove references to srand/rand and
6280 delete an unused file.
6283 *) Add support for the the free Netwide assembler (NASM) under Win32,
6284 since not many people have MASM (ml) and it can be hard to obtain.
6285 This is currently experimental but it seems to work OK and pass all
6286 the tests. Check out INSTALL.W32 for info.
6289 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6290 without temporary keys kept an extra copy of the server key,
6291 and connections with temporary keys did not free everything in case
6295 *) New function RSA_check_key and new openssl rsa option -check
6296 for verifying the consistency of RSA keys.
6297 [Ulf Moeller, Bodo Moeller]
6299 *) Various changes to make Win32 compile work:
6300 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6301 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6302 comparison" warnings.
6303 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6306 *) Add a debugging option to PKCS#5 v2 key generation function: when
6307 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6308 derived keys are printed to stderr.
6311 *) Copy the flags in ASN1_STRING_dup().
6312 [Roman E. Pavlov <pre@mo.msk.ru>]
6314 *) The x509 application mishandled signing requests containing DSA
6315 keys when the signing key was also DSA and the parameters didn't match.
6317 It was supposed to omit the parameters when they matched the signing key:
6318 the verifying software was then supposed to automatically use the CA's
6319 parameters if they were absent from the end user certificate.
6321 Omitting parameters is no longer recommended. The test was also
6322 the wrong way round! This was probably due to unusual behaviour in
6323 EVP_cmp_parameters() which returns 1 if the parameters match.
6324 This meant that parameters were omitted when they *didn't* match and
6325 the certificate was useless. Certificates signed with 'ca' didn't have
6327 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6329 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6330 The interface is as follows:
6331 Applications can use
6332 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6333 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6334 "off" is now the default.
6335 The library internally uses
6336 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6337 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6338 to disable memory-checking temporarily.
6340 Some inconsistent states that previously were possible (and were
6341 even the default) are now avoided.
6343 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6344 with each memory chunk allocated; this is occasionally more helpful
6345 than just having a counter.
6347 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6349 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6353 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6354 which largely parallels "options", but is for changing API behaviour,
6355 whereas "options" are about protocol behaviour.
6356 Initial "mode" flags are:
6358 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6359 a single record has been written.
6360 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6361 retries use the same buffer location.
6362 (But all of the contents must be
6366 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6369 *) Fix problems with no-hmac etc.
6370 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6372 *) New functions RSA_get_default_method(), RSA_set_method() and
6373 RSA_get_method(). These allows replacement of RSA_METHODs without having
6374 to mess around with the internals of an RSA structure.
6377 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6378 Also really enable memory leak checks in openssl.c and in some
6380 [Chad C. Mulligan, Bodo Moeller]
6382 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6383 up the length of negative integers. This has now been simplified to just
6384 store the length when it is first determined and use it later, rather
6385 than trying to keep track of where data is copied and updating it to
6387 [Steve Henson, reported by Brien Wheeler
6388 <bwheeler@authentica-security.com>]
6390 *) Add a new function PKCS7_signatureVerify. This allows the verification
6391 of a PKCS#7 signature but with the signing certificate passed to the
6392 function itself. This contrasts with PKCS7_dataVerify which assumes the
6393 certificate is present in the PKCS#7 structure. This isn't always the
6394 case: certificates can be omitted from a PKCS#7 structure and be
6395 distributed by "out of band" means (such as a certificate database).
6398 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6399 function prototypes in pem.h, also change util/mkdef.pl to add the
6400 necessary function names.
6403 *) mk1mf.pl (used by Windows builds) did not properly read the
6404 options set by Configure in the top level Makefile, and Configure
6405 was not even able to write more than one option correctly.
6406 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6409 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6410 file to be loaded from a BIO or FILE pointer. The BIO version will
6411 for example allow memory BIOs to contain config info.
6414 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6415 Whoever hopes to achieve shared-library compatibility across versions
6416 must use this, not the compile-time macro.
6417 (Exercise 0.9.4: Which is the minimum library version required by
6419 Note: All this applies only to multi-threaded programs, others don't
6423 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6424 through a BIO pair triggered the default case, i.e.
6425 SSLerr(...,SSL_R_UNKNOWN_STATE).
6428 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6429 can use the SSL library even if none of the specific BIOs is
6433 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6434 for the encoded length.
6435 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6437 *) Add initial documentation of the X509V3 functions.
6440 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6441 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6442 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6443 secure PKCS#8 private key format with a high iteration count.
6446 *) Fix determination of Perl interpreter: A perl or perl5
6447 _directory_ in $PATH was also accepted as the interpreter.
6448 [Ralf S. Engelschall]
6450 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6451 wrong with it but it was very old and did things like calling
6452 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6456 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6457 to use the new extension code.
6460 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6461 with macros. This should make it easier to change their form, add extra
6462 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6466 *) Add to configuration table a new entry that can specify an alternative
6467 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6468 according to Mark Crispin <MRC@Panda.COM>.
6472 *) DES CBC did not update the IV. Weird.
6475 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6476 Changing the behaviour of the former might break existing programs --
6477 where IV updating is needed, des_ncbc_encrypt can be used.
6480 *) When bntest is run from "make test" it drives bc to check its
6481 calculations, as well as internally checking them. If an internal check
6482 fails, it needs to cause bc to give a non-zero result or make test carries
6483 on without noticing the failure. Fixed.
6486 *) DES library cleanups.
6489 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6490 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6491 ciphers. NOTE: although the key derivation function has been verified
6492 against some published test vectors it has not been extensively tested
6493 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6497 *) Instead of "mkdir -p", which is not fully portable, use new
6498 Perl script "util/mkdir-p.pl".
6501 *) Rewrite the way password based encryption (PBE) is handled. It used to
6502 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6503 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6504 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6505 the 'parameter' field of the AlgorithmIdentifier is passed to the
6506 underlying key generation function so it must do its own ASN1 parsing.
6507 This has also changed the EVP_PBE_CipherInit() function which now has a
6508 'parameter' argument instead of literal salt and iteration count values
6509 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
6512 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
6513 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
6514 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
6515 KEY" because this clashed with PKCS#8 unencrypted string. Since this
6516 value was just used as a "magic string" and not used directly its
6517 value doesn't matter.
6520 *) Introduce some semblance of const correctness to BN. Shame C doesn't
6524 *) "linux-sparc64" configuration (ultrapenguin).
6525 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
6526 "linux-sparc" configuration.
6527 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
6529 *) config now generates no-xxx options for missing ciphers.
6532 *) Support the EBCDIC character set (work in progress).
6533 File ebcdic.c not yet included because it has a different license.
6534 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6536 *) Support BS2000/OSD-POSIX.
6537 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6539 *) Make callbacks for key generation use void * instead of char *.
6542 *) Make S/MIME samples compile (not yet tested).
6545 *) Additional typesafe stacks.
6548 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
6552 Changes between 0.9.3 and 0.9.3a [29 May 1999]
6554 *) New configuration variant "sco5-gcc".
6556 *) Updated some demos.
6557 [Sean O Riordain, Wade Scholine]
6559 *) Add missing BIO_free at exit of pkcs12 application.
6562 *) Fix memory leak in conf.c.
6565 *) Updates for Win32 to assembler version of MD5.
6568 *) Set #! path to perl in apps/der_chop to where we found it
6569 instead of using a fixed path.
6572 *) SHA library changes for irix64-mips4-cc.
6575 *) Improvements for VMS support.
6579 Changes between 0.9.2b and 0.9.3 [24 May 1999]
6581 *) Bignum library bug fix. IRIX 6 passes "make test" now!
6582 This also avoids the problems with SC4.2 and unpatched SC5.
6583 [Andy Polyakov <appro@fy.chalmers.se>]
6585 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
6586 These are required because of the typesafe stack would otherwise break
6587 existing code. If old code used a structure member which used to be STACK
6588 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
6589 sk_num or sk_value it would produce an error because the num, data members
6590 are not present in STACK_OF. Now it just produces a warning. sk_set
6591 replaces the old method of assigning a value to sk_value
6592 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
6593 that does this will no longer work (and should use sk_set instead) but
6594 this could be regarded as a "questionable" behaviour anyway.
6597 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
6598 correctly handle encrypted S/MIME data.
6601 *) Change type of various DES function arguments from des_cblock
6602 (which means, in function argument declarations, pointer to char)
6603 to des_cblock * (meaning pointer to array with 8 char elements),
6604 which allows the compiler to do more typechecking; it was like
6605 that back in SSLeay, but with lots of ugly casts.
6607 Introduce new type const_des_cblock.
6610 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
6611 problems: find RecipientInfo structure that matches recipient certificate
6612 and initialise the ASN1 structures properly based on passed cipher.
6615 *) Belatedly make the BN tests actually check the results.
6618 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
6619 to and from BNs: it was completely broken. New compilation option
6620 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
6621 key elements as negative integers.
6624 *) Reorganize and speed up MD5.
6625 [Andy Polyakov <appro@fy.chalmers.se>]
6628 [Richard Levitte <richard@levitte.org>]
6630 *) New option -out to asn1parse to allow the parsed structure to be
6631 output to a file. This is most useful when combined with the -strparse
6632 option to examine the output of things like OCTET STRINGS.
6635 *) Make SSL library a little more fool-proof by not requiring any longer
6636 that SSL_set_{accept,connect}_state be called before
6637 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
6638 in many applications because usually everything *appeared* to work as
6639 intended anyway -- now it really works as intended).
6642 *) Move openssl.cnf out of lib/.
6645 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
6646 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
6647 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
6648 [Ralf S. Engelschall]
6650 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
6651 handle PKCS#7 enveloped data properly.
6652 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
6654 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
6655 copying pointers. The cert_st handling is changed by this in
6656 various ways (and thus what used to be known as ctx->default_cert
6657 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
6658 any longer when s->cert does not give us what we need).
6659 ssl_cert_instantiate becomes obsolete by this change.
6660 As soon as we've got the new code right (possibly it already is?),
6661 we have solved a couple of bugs of the earlier code where s->cert
6662 was used as if it could not have been shared with other SSL structures.
6664 Note that using the SSL API in certain dirty ways now will result
6665 in different behaviour than observed with earlier library versions:
6666 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
6667 does not influence s as it used to.
6669 In order to clean up things more thoroughly, inside SSL_SESSION
6670 we don't use CERT any longer, but a new structure SESS_CERT
6671 that holds per-session data (if available); currently, this is
6672 the peer's certificate chain and, for clients, the server's certificate
6673 and temporary key. CERT holds only those values that can have
6674 meaningful defaults in an SSL_CTX.
6677 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
6678 from the internal representation. Various PKCS#7 fixes: remove some
6679 evil casts and set the enc_dig_alg field properly based on the signing
6683 *) Allow PKCS#12 password to be set from the command line or the
6684 environment. Let 'ca' get its config file name from the environment
6685 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
6689 *) Allow certificate policies extension to use an IA5STRING for the
6690 organization field. This is contrary to the PKIX definition but
6691 VeriSign uses it and IE5 only recognises this form. Document 'x509'
6695 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
6696 without disallowing inline assembler and the like for non-pedantic builds.
6699 *) Support Borland C++ builder.
6700 [Janez Jere <jj@void.si>, modified by Ulf Möller]
6705 *) SHA-1 cleanups and performance enhancements.
6706 [Andy Polyakov <appro@fy.chalmers.se>]
6708 *) Sparc v8plus assembler for the bignum library.
6709 [Andy Polyakov <appro@fy.chalmers.se>]
6711 *) Accept any -xxx and +xxx compiler options in Configure.
6714 *) Update HPUX configuration.
6717 *) Add missing sk_<type>_unshift() function to safestack.h
6718 [Ralf S. Engelschall]
6720 *) New function SSL_CTX_use_certificate_chain_file that sets the
6721 "extra_cert"s in addition to the certificate. (This makes sense
6722 only for "PEM" format files, as chains as a whole are not
6726 *) Support verify_depth from the SSL API.
6727 x509_vfy.c had what can be considered an off-by-one-error:
6728 Its depth (which was not part of the external interface)
6729 was actually counting the number of certificates in a chain;
6730 now it really counts the depth.
6733 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
6734 instead of X509err, which often resulted in confusing error
6735 messages since the error codes are not globally unique
6736 (e.g. an alleged error in ssl3_accept when a certificate
6737 didn't match the private key).
6739 *) New function SSL_CTX_set_session_id_context that allows to set a default
6740 value (so that you don't need SSL_set_session_id_context for each
6741 connection using the SSL_CTX).
6744 *) OAEP decoding bug fix.
6747 *) Support INSTALL_PREFIX for package builders, as proposed by
6751 *) New Configure options "threads" and "no-threads". For systems
6752 where the proper compiler options are known (currently Solaris
6753 and Linux), "threads" is the default.
6756 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
6759 *) Install various scripts to $(OPENSSLDIR)/misc, not to
6760 $(INSTALLTOP)/bin -- they shouldn't clutter directories
6761 such as /usr/local/bin.
6764 *) "make linux-shared" to build shared libraries.
6765 [Niels Poppe <niels@netbox.org>]
6767 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
6770 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
6771 extension adding in x509 utility.
6774 *) Remove NOPROTO sections and error code comments.
6777 *) Partial rewrite of the DEF file generator to now parse the ANSI
6781 *) New Configure options --prefix=DIR and --openssldir=DIR.
6784 *) Complete rewrite of the error code script(s). It is all now handled
6785 by one script at the top level which handles error code gathering,
6786 header rewriting and C source file generation. It should be much better
6787 than the old method: it now uses a modified version of Ulf's parser to
6788 read the ANSI prototypes in all header files (thus the old K&R definitions
6789 aren't needed for error creation any more) and do a better job of
6790 translating function codes into names. The old 'ASN1 error code imbedded
6791 in a comment' is no longer necessary and it doesn't use .err files which
6792 have now been deleted. Also the error code call doesn't have to appear all
6793 on one line (which resulted in some large lines...).
6796 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
6799 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
6800 0 (which usually indicates a closed connection), but continue reading.
6803 *) Fix some race conditions.
6806 *) Add support for CRL distribution points extension. Add Certificate
6807 Policies and CRL distribution points documentation.
6810 *) Move the autogenerated header file parts to crypto/opensslconf.h.
6813 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
6814 8 of keying material. Merlin has also confirmed interop with this fix
6815 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
6816 [Merlin Hughes <merlin@baltimore.ie>]
6818 *) Fix lots of warnings.
6819 [Richard Levitte <levitte@stacken.kth.se>]
6821 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
6822 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
6823 [Richard Levitte <levitte@stacken.kth.se>]
6825 *) Fix problems with sizeof(long) == 8.
6826 [Andy Polyakov <appro@fy.chalmers.se>]
6828 *) Change functions to ANSI C.
6831 *) Fix typos in error codes.
6832 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
6834 *) Remove defunct assembler files from Configure.
6837 *) SPARC v8 assembler BIGNUM implementation.
6838 [Andy Polyakov <appro@fy.chalmers.se>]
6840 *) Support for Certificate Policies extension: both print and set.
6841 Various additions to support the r2i method this uses.
6844 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
6845 return a const string when you are expecting an allocated buffer.
6848 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
6849 types DirectoryString and DisplayText.
6852 *) Add code to allow r2i extensions to access the configuration database,
6853 add an LHASH database driver and add several ctx helper functions.
6856 *) Fix an evil bug in bn_expand2() which caused various BN functions to
6857 fail when they extended the size of a BIGNUM.
6860 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
6861 support typesafe stack.
6864 *) Fix typo in SSL_[gs]et_options().
6865 [Nils Frostberg <nils@medcom.se>]
6867 *) Delete various functions and files that belonged to the (now obsolete)
6868 old X509V3 handling code.
6871 *) New Configure option "rsaref".
6874 *) Don't auto-generate pem.h.
6877 *) Introduce type-safe ASN.1 SETs.
6880 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
6881 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
6883 *) Introduce type-safe STACKs. This will almost certainly break lots of code
6884 that links with OpenSSL (well at least cause lots of warnings), but fear
6885 not: the conversion is trivial, and it eliminates loads of evil casts. A
6886 few STACKed things have been converted already. Feel free to convert more.
6887 In the fullness of time, I'll do away with the STACK type altogether.
6890 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
6891 specified in <certfile> by updating the entry in the index.txt file.
6892 This way one no longer has to edit the index.txt file manually for
6893 revoking a certificate. The -revoke option does the gory details now.
6894 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
6896 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
6897 `-text' option at all and this way the `-noout -text' combination was
6898 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
6899 [Ralf S. Engelschall]
6901 *) Make sure a corresponding plain text error message exists for the
6902 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
6903 verify callback function determined that a certificate was revoked.
6904 [Ralf S. Engelschall]
6906 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
6907 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
6908 all available cipers including rc5, which was forgotten until now.
6909 In order to let the testing shell script know which algorithms
6910 are available, a new (up to now undocumented) command
6911 "openssl list-cipher-commands" is used.
6914 *) Bugfix: s_client occasionally would sleep in select() when
6915 it should have checked SSL_pending() first.
6918 *) New functions DSA_do_sign and DSA_do_verify to provide access to
6919 the raw DSA values prior to ASN.1 encoding.
6922 *) Tweaks to Configure
6923 [Niels Poppe <niels@netbox.org>]
6925 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
6929 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
6932 *) New config option to avoid instructions that are illegal on the 80386.
6933 The default code is faster, but requires at least a 486.
6936 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
6937 SSL2_SERVER_VERSION (not used at all) macros, which are now the
6938 same as SSL2_VERSION anyway.
6941 *) New "-showcerts" option for s_client.
6944 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
6945 application. Various cleanups and fixes.
6948 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
6949 modify error routines to work internally. Add error codes and PBE init
6950 to library startup routines.
6953 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
6954 packing functions to asn1 and evp. Changed function names and error
6955 codes along the way.
6958 *) PKCS12 integration: and so it begins... First of several patches to
6959 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
6960 objects to objects.h
6963 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
6964 and display support for Thawte strong extranet extension.
6967 *) Add LinuxPPC support.
6968 [Jeff Dubrule <igor@pobox.org>]
6970 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
6971 bn_div_words in alpha.s.
6972 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
6974 *) Make sure the RSA OAEP test is skipped under -DRSAref because
6975 OAEP isn't supported when OpenSSL is built with RSAref.
6976 [Ulf Moeller <ulf@fitug.de>]
6978 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
6979 so they no longer are missing under -DNOPROTO.
6980 [Soren S. Jorvang <soren@t.dk>]
6983 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
6985 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
6986 doesn't work when the session is reused. Coming soon!
6989 *) Fix a security hole, that allows sessions to be reused in the wrong
6990 context thus bypassing client cert protection! All software that uses
6991 client certs and session caches in multiple contexts NEEDS PATCHING to
6992 allow session reuse! A fuller solution is in the works.
6993 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
6995 *) Some more source tree cleanups (removed obsolete files
6996 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
6997 permission on "config" script to be executable) and a fix for the INSTALL
6999 [Ulf Moeller <ulf@fitug.de>]
7001 *) Remove some legacy and erroneous uses of malloc, free instead of
7003 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7005 *) Make rsa_oaep_test return non-zero on error.
7006 [Ulf Moeller <ulf@fitug.de>]
7008 *) Add support for native Solaris shared libraries. Configure
7009 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7010 if someone would make that last step automatic.
7011 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7013 *) ctx_size was not built with the right compiler during "make links". Fixed.
7016 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7017 except NULL ciphers". This means the default cipher list will no longer
7018 enable NULL ciphers. They need to be specifically enabled e.g. with
7019 the string "DEFAULT:eNULL".
7022 *) Fix to RSA private encryption routines: if p < q then it would
7023 occasionally produce an invalid result. This will only happen with
7024 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7027 *) Be less restrictive and allow also `perl util/perlpath.pl
7028 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7029 because this way one can also use an interpreter named `perl5' (which is
7030 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7031 installed as `perl').
7032 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7034 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7035 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7037 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7038 advapi32.lib to Win32 build and change the pem test comparision
7039 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7040 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7041 and crypto/des/ede_cbcm_enc.c.
7044 *) DES quad checksum was broken on big-endian architectures. Fixed.
7047 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7048 Win32 test batch file so it (might) work again. The Win32 test batch file
7049 is horrible: I feel ill....
7052 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7053 in e_os.h. Audit of header files to check ANSI and non ANSI
7054 sections: 10 functions were absent from non ANSI section and not exported
7055 from Windows DLLs. Fixed up libeay.num for new functions.
7058 *) Make `openssl version' output lines consistent.
7059 [Ralf S. Engelschall]
7061 *) Fix Win32 symbol export lists for BIO functions: Added
7062 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7063 to ms/libeay{16,32}.def.
7064 [Ralf S. Engelschall]
7066 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7067 fine under Unix and passes some trivial tests I've now added. But the
7068 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7069 added to make sure no one expects that this stuff really works in the
7070 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7071 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7073 [Ralf S. Engelschall]
7075 *) Fix the generation of two part addresses in perl.
7076 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7078 *) Add config entry for Linux on MIPS.
7079 [John Tobey <jtobey@channel1.com>]
7081 *) Make links whenever Configure is run, unless we are on Windoze.
7084 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7085 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7089 *) Add a useful kludge to allow package maintainers to specify compiler and
7090 other platforms details on the command line without having to patch the
7091 Configure script everytime: One now can use ``perl Configure
7092 <id>:<details>'', i.e. platform ids are allowed to have details appended
7093 to them (seperated by colons). This is treated as there would be a static
7094 pre-configured entry in Configure's %table under key <id> with value
7095 <details> and ``perl Configure <id>'' is called. So, when you want to
7096 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7097 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7098 now, which overrides the FreeBSD-elf entry on-the-fly.
7099 [Ralf S. Engelschall]
7101 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7104 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7105 on the `perl Configure ...' command line. This way one can compile
7106 OpenSSL libraries with Position Independent Code (PIC) which is needed
7107 for linking it into DSOs.
7108 [Ralf S. Engelschall]
7110 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7114 *) Cleaned up the LICENSE document: The official contact for any license
7115 questions now is the OpenSSL core team under openssl-core@openssl.org.
7116 And add a paragraph about the dual-license situation to make sure people
7117 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7118 to the OpenSSL toolkit.
7119 [Ralf S. Engelschall]
7121 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7122 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7123 Additonally cleaned up the `make links' target: Remove unnecessary
7124 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7125 to speed processing and no longer clutter the display with confusing
7126 stuff. Instead only the actually done links are displayed.
7127 [Ralf S. Engelschall]
7129 *) Permit null encryption ciphersuites, used for authentication only. It used
7130 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7131 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7135 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7136 signed attributes when verifying signatures (this would break them),
7137 the detached data encoding was wrong and public keys obtained using
7138 X509_get_pubkey() weren't freed.
7141 *) Add text documentation for the BUFFER functions. Also added a work around
7142 to a Win95 console bug. This was triggered by the password read stuff: the
7143 last character typed gets carried over to the next fread(). If you were
7144 generating a new cert request using 'req' for example then the last
7145 character of the passphrase would be CR which would then enter the first
7149 *) Added the new `Includes OpenSSL Cryptography Software' button as
7150 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7151 button and can be used by applications based on OpenSSL to show the
7152 relationship to the OpenSSL project.
7153 [Ralf S. Engelschall]
7155 *) Remove confusing variables in function signatures in files
7156 ssl/ssl_lib.c and ssl/ssl.h.
7157 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7159 *) Don't install bss_file.c under PREFIX/include/
7160 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7162 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7163 functions that return function pointers and has support for NT specific
7164 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7165 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7166 unsigned to signed types: this was killing the Win32 compile.
7169 *) Add new certificate file to stack functions,
7170 SSL_add_dir_cert_subjects_to_stack() and
7171 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7172 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7173 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7174 This means that Apache-SSL and similar packages don't have to mess around
7175 to add as many CAs as they want to the preferred list.
7178 *) Experiment with doxygen documentation. Currently only partially applied to
7180 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7181 openssl.doxy as the configuration file.
7184 *) Get rid of remaining C++-style comments which strict C compilers hate.
7185 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7187 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7188 compiled in by default: it has problems with large keys.
7191 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7192 DH private keys and/or callback functions which directly correspond to
7193 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7194 is needed for applications which have to configure certificates on a
7195 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7197 For the RSA certificate situation is makes no difference, but
7198 for the DSA certificate situation this fixes the "no shared cipher"
7199 problem where the OpenSSL cipher selection procedure failed because the
7200 temporary keys were not overtaken from the context and the API provided
7201 no way to reconfigure them.
7202 The new functions now let applications reconfigure the stuff and they
7203 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7204 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7205 non-public-API function ssl_cert_instantiate() is used as a helper
7206 function and also to reduce code redundancy inside ssl_rsa.c.
7207 [Ralf S. Engelschall]
7209 *) Move s_server -dcert and -dkey options out of the undocumented feature
7210 area because they are useful for the DSA situation and should be
7211 recognized by the users.
7212 [Ralf S. Engelschall]
7214 *) Fix the cipher decision scheme for export ciphers: the export bits are
7215 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7216 SSL_EXP_MASK. So, the original variable has to be used instead of the
7217 already masked variable.
7218 [Richard Levitte <levitte@stacken.kth.se>]
7220 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7221 [Richard Levitte <levitte@stacken.kth.se>]
7223 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7224 from `int' to `unsigned int' because it's a length and initialized by
7225 EVP_DigestFinal() which expects an `unsigned int *'.
7226 [Richard Levitte <levitte@stacken.kth.se>]
7228 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7229 script. Instead use the usual Shell->Perl transition trick.
7230 [Ralf S. Engelschall]
7232 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7233 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7234 -noout -modulus' as it's already the case for `openssl rsa -noout
7235 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7236 currently the public key is printed (a decision which was already done by
7237 `openssl dsa -modulus' in the past) which serves a similar purpose.
7238 Additionally the NO_RSA no longer completely removes the whole -modulus
7239 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7241 [Ralf S. Engelschall]
7243 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7244 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7245 [Arne Ansper <arne@ats.cyber.ee>]
7247 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7248 to be added. Now both 'req' and 'ca' can use new objects defined in the
7252 *) Add cool BIO that does syslog (or event log on NT).
7253 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7255 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7256 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7257 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7258 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7261 *) Add preliminary config info for new extension code.
7264 *) Make RSA_NO_PADDING really use no padding.
7265 [Ulf Moeller <ulf@fitug.de>]
7267 *) Generate errors when private/public key check is done.
7270 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7271 for some CRL extensions and new objects added.
7274 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7275 key usage extension and fuller support for authority key id.
7278 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7279 padding method for RSA, which is recommended for new applications in PKCS
7280 #1 v2.0 (RFC 2437, October 1998).
7281 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7282 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7283 against Bleichbacher's attack on RSA.
7284 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7287 *) Updates to the new SSL compression code
7288 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7290 *) Fix so that the version number in the master secret, when passed
7291 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7292 (because the server will not accept higher), that the version number
7293 is 0x03,0x01, not 0x03,0x00
7294 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7296 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7297 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7298 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7301 *) Support for RAW extensions where an arbitrary extension can be
7302 created by including its DER encoding. See apps/openssl.cnf for
7306 *) Make sure latest Perl versions don't interpret some generated C array
7307 code as Perl array code in the crypto/err/err_genc.pl script.
7308 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7310 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7311 not many people have the assembler. Various Win32 compilation fixes and
7312 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7316 *) Modify configure script 'Configure' to automatically create crypto/date.h
7317 file under Win32 and also build pem.h from pem.org. New script
7318 util/mkfiles.pl to create the MINFO file on environments that can't do a
7319 'make files': perl util/mkfiles.pl >MINFO should work.
7322 *) Major rework of DES function declarations, in the pursuit of correctness
7323 and purity. As a result, many evil casts evaporated, and some weirdness,
7324 too. You may find this causes warnings in your code. Zapping your evil
7325 casts will probably fix them. Mostly.
7328 *) Fix for a typo in asn1.h. Bug fix to object creation script
7329 obj_dat.pl. It considered a zero in an object definition to mean
7330 "end of object": none of the objects in objects.h have any zeros
7331 so it wasn't spotted.
7332 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7334 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7335 Masking (CBCM). In the absence of test vectors, the best I have been able
7336 to do is check that the decrypt undoes the encrypt, so far. Send me test
7337 vectors if you have them.
7340 *) Correct calculation of key length for export ciphers (too much space was
7341 allocated for null ciphers). This has not been tested!
7344 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7345 message is now correct (it understands "crypto" and "ssl" on its
7346 command line). There is also now an "update" option. This will update
7347 the util/ssleay.num and util/libeay.num files with any new functions.
7349 perl util/mkdef.pl crypto ssl update
7350 it will update them.
7353 *) Overhauled the Perl interface (perl/*):
7354 - ported BN stuff to OpenSSL's different BN library
7355 - made the perl/ source tree CVS-aware
7356 - renamed the package from SSLeay to OpenSSL (the files still contain
7357 their history because I've copied them in the repository)
7358 - removed obsolete files (the test scripts will be replaced
7359 by better Test::Harness variants in the future)
7360 [Ralf S. Engelschall]
7362 *) First cut for a very conservative source tree cleanup:
7363 1. merge various obsolete readme texts into doc/ssleay.txt
7364 where we collect the old documents and readme texts.
7365 2. remove the first part of files where I'm already sure that we no
7366 longer need them because of three reasons: either they are just temporary
7367 files which were left by Eric or they are preserved original files where
7368 I've verified that the diff is also available in the CVS via "cvs diff
7369 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7370 the crypto/md/ stuff).
7371 [Ralf S. Engelschall]
7373 *) More extension code. Incomplete support for subject and issuer alt
7374 name, issuer and authority key id. Change the i2v function parameters
7375 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7376 what that's for :-) Fix to ASN1 macro which messed up
7377 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7380 *) Preliminary support for ENUMERATED type. This is largely copied from the
7384 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7385 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7387 *) Make sure `make rehash' target really finds the `openssl' program.
7388 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7390 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7391 like to hear about it if this slows down other processors.
7394 *) Add CygWin32 platform information to Configure script.
7395 [Alan Batie <batie@aahz.jf.intel.com>]
7397 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7398 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7400 *) New program nseq to manipulate netscape certificate sequences
7403 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7407 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7408 but the BN code had some problems that would cause failures when
7409 doing certificate verification and some other functions.
7410 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7412 *) Add ASN1 and PEM code to support netscape certificate sequences.
7415 *) Add ASN1 and PEM code to support netscape certificate sequences.
7418 *) Add several PKIX and private extended key usage OIDs.
7421 *) Modify the 'ca' program to handle the new extension code. Modify
7422 openssl.cnf for new extension format, add comments.
7425 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7426 and add a sample to openssl.cnf so req -x509 now adds appropriate
7430 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7431 error code, add initial support to X509_print() and x509 application.
7434 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7435 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7436 stuff is currently isolated and isn't even compiled yet.
7439 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7440 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7441 Removed the versions check from X509 routines when loading extensions:
7442 this allows certain broken certificates that don't set the version
7443 properly to be processed.
7446 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7447 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7448 can still be regenerated with "make depend".
7451 *) Spelling mistake in C version of CAST-128.
7452 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7454 *) Changes to the error generation code. The perl script err-code.pl
7455 now reads in the old error codes and retains the old numbers, only
7456 adding new ones if necessary. It also only changes the .err files if new
7457 codes are added. The makefiles have been modified to only insert errors
7458 when needed (to avoid needlessly modifying header files). This is done
7459 by only inserting errors if the .err file is newer than the auto generated
7460 C file. To rebuild all the error codes from scratch (the old behaviour)
7461 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7462 or delete all the .err files.
7465 *) CAST-128 was incorrectly implemented for short keys. The C version has
7466 been fixed, but is untested. The assembler versions are also fixed, but
7467 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7468 to regenerate it if needed.
7469 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7470 Hagino <itojun@kame.net>]
7472 *) File was opened incorrectly in randfile.c.
7473 [Ulf Möller <ulf@fitug.de>]
7475 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7476 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7477 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7478 al: it's just almost always a UTCTime. Note this patch adds new error
7479 codes so do a "make errors" if there are problems.
7482 *) Correct Linux 1 recognition in config.
7483 [Ulf Möller <ulf@fitug.de>]
7485 *) Remove pointless MD5 hash when using DSA keys in ca.
7486 [Anonymous <nobody@replay.com>]
7488 *) Generate an error if given an empty string as a cert directory. Also
7489 generate an error if handed NULL (previously returned 0 to indicate an
7490 error, but didn't set one).
7491 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7493 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7496 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7497 parameters. This was causing a warning which killed off the Win32 compile.
7500 *) Remove C++ style comments from crypto/bn/bn_local.h.
7501 [Neil Costigan <neil.costigan@celocom.com>]
7503 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7504 based on a text string, looking up short and long names and finally
7505 "dot" format. The "dot" format stuff didn't work. Added new function
7506 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
7507 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
7508 OID is not part of the table.
7511 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
7512 X509_LOOKUP_by_alias().
7515 *) Sort openssl functions by name.
7518 *) Get the gendsa program working (hopefully) and add it to app list. Remove
7519 encryption from sample DSA keys (in case anyone is interested the password
7523 *) Make _all_ *_free functions accept a NULL pointer.
7524 [Frans Heymans <fheymans@isaserver.be>]
7526 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
7528 [Anonymous <nobody@replay.com>]
7530 *) s_server should send the CAfile as acceptable CAs, not its own cert.
7531 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7533 *) Don't blow it for numeric -newkey arguments to apps/req.
7534 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7536 *) Temp key "for export" tests were wrong in s3_srvr.c.
7537 [Anonymous <nobody@replay.com>]
7539 *) Add prototype for temp key callback functions
7540 SSL_CTX_set_tmp_{rsa,dh}_callback().
7543 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
7544 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
7547 *) X509_name_add_entry() freed the wrong thing after an error.
7548 [Arne Ansper <arne@ats.cyber.ee>]
7550 *) rsa_eay.c would attempt to free a NULL context.
7551 [Arne Ansper <arne@ats.cyber.ee>]
7553 *) BIO_s_socket() had a broken should_retry() on Windoze.
7554 [Arne Ansper <arne@ats.cyber.ee>]
7556 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
7557 [Arne Ansper <arne@ats.cyber.ee>]
7559 *) Make sure the already existing X509_STORE->depth variable is initialized
7560 in X509_STORE_new(), but document the fact that this variable is still
7561 unused in the certificate verification process.
7562 [Ralf S. Engelschall]
7564 *) Fix the various library and apps files to free up pkeys obtained from
7565 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
7568 *) Fix reference counting in X509_PUBKEY_get(). This makes
7569 demos/maurice/example2.c work, amongst others, probably.
7570 [Steve Henson and Ben Laurie]
7572 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
7573 `openssl' and second, the shortcut symlinks for the `openssl <command>'
7574 are no longer created. This way we have a single and consistent command
7575 line interface `openssl <command>', similar to `cvs <command>'.
7576 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
7578 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
7579 BIT STRING wrapper always have zero unused bits.
7582 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
7585 *) Make the top-level INSTALL documentation easier to understand.
7588 *) Makefiles updated to exit if an error occurs in a sub-directory
7589 make (including if user presses ^C) [Paul Sutton]
7591 *) Make Montgomery context stuff explicit in RSA data structure.
7594 *) Fix build order of pem and err to allow for generated pem.h.
7597 *) Fix renumbering bug in X509_NAME_delete_entry().
7600 *) Enhanced the err-ins.pl script so it makes the error library number
7601 global and can add a library name. This is needed for external ASN1 and
7602 other error libraries.
7605 *) Fixed sk_insert which never worked properly.
7608 *) Fix ASN1 macros so they can handle indefinite length construted
7609 EXPLICIT tags. Some non standard certificates use these: they can now
7613 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
7614 into a single doc/ssleay.txt bundle. This way the information is still
7615 preserved but no longer messes up this directory. Now it's new room for
7616 the new set of documenation files.
7617 [Ralf S. Engelschall]
7619 *) SETs were incorrectly DER encoded. This was a major pain, because they
7620 shared code with SEQUENCEs, which aren't coded the same. This means that
7621 almost everything to do with SETs or SEQUENCEs has either changed name or
7622 number of arguments.
7623 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
7625 *) Fix test data to work with the above.
7628 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
7629 was already fixed by Eric for 0.9.1 it seems.
7630 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
7632 *) Autodetect FreeBSD3.
7635 *) Fix various bugs in Configure. This affects the following platforms:
7639 unixware-2.0-pentium
7643 *) Eliminate generated files from CVS. Reorder tests to regenerate files
7644 before they are needed.
7647 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
7651 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
7653 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
7654 changed SSLeay to OpenSSL in version strings.
7655 [Ralf S. Engelschall]
7657 *) Some fixups to the top-level documents.
7660 *) Fixed the nasty bug where rsaref.h was not found under compile-time
7661 because the symlink to include/ was missing.
7662 [Ralf S. Engelschall]
7664 *) Incorporated the popular no-RSA/DSA-only patches
7665 which allow to compile a RSA-free SSLeay.
7666 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
7668 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
7669 when "ssleay" is still not found.
7670 [Ralf S. Engelschall]
7672 *) Added more platforms to Configure: Cray T3E, HPUX 11,
7673 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
7675 *) Updated the README file.
7676 [Ralf S. Engelschall]
7678 *) Added various .cvsignore files in the CVS repository subdirs
7679 to make a "cvs update" really silent.
7680 [Ralf S. Engelschall]
7682 *) Recompiled the error-definition header files and added
7683 missing symbols to the Win32 linker tables.
7684 [Ralf S. Engelschall]
7686 *) Cleaned up the top-level documents;
7687 o new files: CHANGES and LICENSE
7688 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
7689 o merged COPYRIGHT into LICENSE
7690 o removed obsolete TODO file
7691 o renamed MICROSOFT to INSTALL.W32
7692 [Ralf S. Engelschall]
7694 *) Removed dummy files from the 0.9.1b source tree:
7695 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
7696 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
7697 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
7698 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
7699 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
7700 [Ralf S. Engelschall]
7702 *) Added various platform portability fixes.
7705 *) The Genesis of the OpenSSL rpject:
7706 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
7707 Young and Tim J. Hudson created while they were working for C2Net until
7709 [The OpenSSL Project]
7712 Changes between 0.9.0b and 0.9.1b [not released]
7714 *) Updated a few CA certificates under certs/
7717 *) Changed some BIGNUM api stuff.
7720 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
7721 DGUX x86, Linux Alpha, etc.
7724 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
7725 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
7729 *) Add -strparse option to asn1pars program which parses nested
7731 [Dr Stephen Henson <shenson@bigfoot.com>]
7733 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
7736 *) DSA fix for "ca" program.
7739 *) Added "-genkey" option to "dsaparam" program.
7742 *) Added RIPE MD160 (rmd160) message digest.
7745 *) Added -a (all) option to "ssleay version" command.
7748 *) Added PLATFORM define which is the id given to Configure.
7751 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
7754 *) Extended the ASN.1 parser routines.
7757 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
7760 *) Added a BN_CTX to the BN library.
7763 *) Fixed the weak key values in DES library
7766 *) Changed API in EVP library for cipher aliases.
7769 *) Added support for RC2/64bit cipher.
7772 *) Converted the lhash library to the crypto/mem.c functions.
7775 *) Added more recognized ASN.1 object ids.
7778 *) Added more RSA padding checks for SSL/TLS.
7781 *) Added BIO proxy/filter functionality.
7784 *) Added extra_certs to SSL_CTX which can be used
7785 send extra CA certificates to the client in the CA cert chain sending
7786 process. It can be configured with SSL_CTX_add_extra_chain_cert().
7789 *) Now Fortezza is denied in the authentication phase because
7790 this is key exchange mechanism is not supported by SSLeay at all.
7793 *) Additional PKCS1 checks.
7796 *) Support the string "TLSv1" for all TLS v1 ciphers.
7799 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
7800 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
7803 *) Fixed a few memory leaks.
7806 *) Fixed various code and comment typos.
7809 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
7810 bytes sent in the client random.
7811 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob