5 Changes between 0.9.8a and 0.9.9 [xx XXX xxxx]
7 *) Add provisional EC pkey method with support for ECDSA and ECDH.
10 *) Add support for key derivation (agreement) in the API, DH method and
14 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
15 public and private key formats. As a side effect these add additional
16 command line functionality not previously available: DSA signatures can be
17 generated and verified using pkeyutl and DH key support and generation in
22 [Oliver Tappe <zooey@hirschkaefer.de>]
24 *) New make target "install_html_docs" installs HTML renditions of the
26 [Oliver Tappe <zooey@hirschkaefer.de>]
28 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
29 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
30 support key and parameter generation and add initial key generation
31 functionality for RSA.
34 *) Add functions for main EVP_PKEY_method operations. The undocumented
35 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
36 EVP_PKEY_{encrypt,decrypt}_old.
39 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
40 key API, doesn't do much yet.
43 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
44 public key algorithms. New option to openssl utility:
45 "list-public-key-algorithms" to print out info.
48 *) Implement the Supported Elliptic Curves Extension for
49 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
52 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
53 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
56 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
57 utilities such as rsa, dsa, dsaparam etc except they process any key
61 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
62 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
63 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
67 *) Initial support for pluggable public key ASN1.
68 De-spaghettify the public key ASN1 handling. Move public and private
69 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
70 algorithm specific handling to a single module within the relevant
71 algorithm directory. Add functions to allow (near) opaque processing
72 of public and private key structures.
75 *) Implement the Supported Point Formats Extension for
76 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
79 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
80 for the psk identity [hint] and the psk callback functions to the
81 SSL_SESSION, SSL and SSL_CTX structure.
84 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
88 SSL_CTX_use_psk_identity_hint
89 SSL_get_psk_identity_hint
91 SSL_use_psk_identity_hint
93 [Mika Kousa and Pasi Eronen of Nokia Corporation]
95 *) Add RFC 3161 compliant time stamp request creation, response generation
96 and response verification functionality.
97 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
99 *) Add initial support for TLS extensions, specifically for the server_name
100 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
101 have new members for a host name. The SSL data structure has an
102 additional member SSL_CTX *initial_ctx so that new sessions can be
103 stored in that context to allow for session resumption, even after the
104 SSL has been switched to a new SSL_CTX in reaction to a client's
105 server_name extension.
107 New functions (subject to change):
110 SSL_get_servername_type()
113 New CTRL codes and macros (subject to change):
115 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
116 - SSL_CTX_set_tlsext_servername_callback()
117 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
118 - SSL_CTX_set_tlsext_servername_arg()
119 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_hostname()
121 openssl s_client has a new '-servername ...' option.
123 openssl s_server has new options '-servername_host ...', '-cert2 ...',
124 '-key2 ...', '-servername_fatal' (subject to change). This allows
125 testing the HostName extension for a specific single host name ('-cert'
126 and '-key' remain fallbacks for handshakes without HostName
127 negotiation). If the unrecogninzed_name alert has to be sent, this by
128 default is a warning; it becomes fatal with the '-servername_fatal'
131 [Peter Sylvester, Remy Allais, Christophe Renou]
133 *) Whirlpool hash implementation is added.
136 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
137 bn(64,32). Because of instruction set limitations it doesn't have
138 any negative impact on performance. This was done mostly in order
139 to make it possible to share assembler modules, such as bn_mul_mont
140 implementations, between 32- and 64-bit builds without hassle.
143 *) Disable rogue ciphersuites:
145 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
146 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
147 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
149 The latter two were purportedly from
150 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
153 Other ciphersuites from draft-ietf-tls-56-bit-ciphersuites-01.txt
154 remain enabled for now, but are just as unofficial, and the ID
155 has long expired; these will probably disappear soon.
158 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
159 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
163 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
164 dedicated Montgomery multiplication procedure, is introduced.
165 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
166 "64-bit" performance on certain 32-bit targets.
169 *) New option SSL_OP_NO_COMP to disable use of compression selectively
170 in SSL structures. New SSL ctrl to set maximum send fragment size.
171 Save memory by seeting the I/O buffer sizes dynamically instead of
172 using the maximum available value.
175 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
176 in addition to the text details.
179 *) Very, very preliminary EXPERIMENTAL support for printing of general
180 ASN1 structures. This currently produces rather ugly output and doesn't
181 handle several customised structures at all.
184 *) Integrated support for PVK file format and some related formats such
185 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
186 these in the 'rsa' and 'dsa' utilities.
189 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
192 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
193 place for the (very old) "NETSCAPE" format certificates which are now
194 handled using new ASN1 code equivalents.
197 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
198 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
199 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
202 *) Modify CRL distribution points extension code to print out previously
203 unsupported fields. Enhance extension setting code to allow setting of
207 *) Add print and set support for Issuing Distribution Point CRL extension.
210 Changes between 0.9.8a and 0.9.8b [XX xxx XXXX]
212 *) When applying a cipher rule check to see if string match is an explicit
213 cipher suite and only match that one cipher suite if it is.
216 *) Link in manifests for VC++ if needed.
217 [Austin Ziegler <halostatue@gmail.com>]
219 *) Update support for ECC-based TLS ciphersuites according to
220 draft-ietf-tls-ecc-12.txt with proposed changes (but without
221 TLS extensions, which are supported starting with the 0.9.9
222 branch, not in the OpenSSL 0.9.8 branch).
225 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
226 opaque EVP_CIPHER_CTX handling.
229 *) Fixes and enhancements to zlib compression code. We now only use
230 "zlib1.dll" and use the default __cdecl calling convention on Win32
231 to conform with the standards mentioned here:
232 http://www.zlib.net/DLL_FAQ.txt
233 Static zlib linking now works on Windows and the new --with-zlib-include
234 --with-zlib-lib options to Configure can be used to supply the location
235 of the headers and library. Gracefully handle case where zlib library
239 *) Several fixes and enhancements to the OID generation code. The old code
240 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
241 handle numbers larger than ULONG_MAX, truncated printing and had a
242 non standard OBJ_obj2txt() behaviour.
245 *) Add support for building of engines under engine/ as shared libraries
246 under VC++ build system.
249 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
250 Hopefully, we will not see any false combination of paths any more.
253 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
255 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
256 (part of SSL_OP_ALL). This option used to disable the
257 countermeasure against man-in-the-middle protocol-version
258 rollback in the SSL 2.0 server implementation, which is a bad
259 idea. (CVE-2005-2969)
261 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
262 for Information Security, National Institute of Advanced Industrial
263 Science and Technology [AIST], Japan)]
265 *) Add two function to clear and return the verify parameter flags.
268 *) Keep cipherlists sorted in the source instead of sorting them at
269 runtime, thus removing the need for a lock.
272 *) Avoid some small subgroup attacks in Diffie-Hellman.
273 [Nick Mathewson and Ben Laurie]
275 *) Add functions for well-known primes.
278 *) Extended Windows CE support.
279 [Satoshi Nakamura and Andy Polyakov]
281 *) Initialize SSL_METHOD structures at compile time instead of during
282 runtime, thus removing the need for a lock.
285 *) Make PKCS7_decrypt() work even if no certificate is supplied by
286 attempting to decrypt each encrypted key in turn. Add support to
290 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
292 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
295 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
296 key into the same file any more.
299 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
302 *) Add -utf8 command line and config file option to 'ca'.
303 [Stefan <stf@udoma.org]
305 *) Removed the macro des_crypt(), as it seems to conflict with some
306 libraries. Use DES_crypt().
309 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
310 involves renaming the source and generated shared-libs for
311 both. The engines will accept the corrected or legacy ids
312 ('ncipher' and '4758_cca' respectively) when binding. NB,
313 this only applies when building 'shared'.
314 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
316 *) Add attribute functions to EVP_PKEY structure. Modify
317 PKCS12_create() to recognize a CSP name attribute and
318 use it. Make -CSP option work again in pkcs12 utility.
321 *) Add new functionality to the bn blinding code:
322 - automatic re-creation of the BN_BLINDING parameters after
323 a fixed number of uses (currently 32)
324 - add new function for parameter creation
325 - introduce flags to control the update behaviour of the
326 BN_BLINDING parameters
327 - hide BN_BLINDING structure
328 Add a second BN_BLINDING slot to the RSA structure to improve
329 performance when a single RSA object is shared among several
333 *) Add support for DTLS.
334 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
336 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
337 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
340 *) Remove buggy and incompletet DH cert support from
341 ssl/ssl_rsa.c and ssl/s3_both.c
344 *) Use SHA-1 instead of MD5 as the default digest algorithm for
345 the apps/openssl applications.
348 *) Compile clean with "-Wall -Wmissing-prototypes
349 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
350 DEBUG_SAFESTACK must also be set.
353 *) Change ./Configure so that certain algorithms can be disabled by default.
354 The new counterpiece to "no-xxx" is "enable-xxx".
356 The patented RC5 and MDC2 algorithms will now be disabled unless
357 "enable-rc5" and "enable-mdc2", respectively, are specified.
359 (IDEA remains enabled despite being patented. This is because IDEA
360 is frequently required for interoperability, and there is no license
361 fee for non-commercial use. As before, "no-idea" can be used to
362 avoid this algorithm.)
366 *) Add processing of proxy certificates (see RFC 3820). This work was
367 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
368 EGEE (Enabling Grids for E-science in Europe).
371 *) RC4 performance overhaul on modern architectures/implementations, such
372 as Intel P4, IA-64 and AMD64.
375 *) New utility extract-section.pl. This can be used specify an alternative
376 section number in a pod file instead of having to treat each file as
377 a separate case in Makefile. This can be done by adding two lines to the
380 =for comment openssl_section:XXX
382 The blank line is mandatory.
386 *) New arguments -certform, -keyform and -pass for s_client and s_server
387 to allow alternative format key and certificate files and passphrase
391 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
392 update associated structures and add various utility functions.
394 Add new policy related verify parameters, include policy checking in
395 standard verify code. Enhance 'smime' application with extra parameters
396 to support policy checking and print out.
399 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
400 Nehemiah processors. These extensions support AES encryption in hardware
401 as well as RNG (though RNG support is currently disabled).
402 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
404 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
407 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
408 [Andy Polyakov and a number of other people]
410 *) Improved PowerPC platform support. Most notably BIGNUM assembler
411 implementation contributed by IBM.
412 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
414 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
415 exponent rather than 'unsigned long'. There is a corresponding change to
416 the new 'rsa_keygen' element of the RSA_METHOD structure.
417 [Jelte Jansen, Geoff Thorpe]
419 *) Functionality for creating the initial serial number file is now
420 moved from CA.pl to the 'ca' utility with a new option -create_serial.
422 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
423 number file to 1, which is bound to cause problems. To avoid
424 the problems while respecting compatibility between different 0.9.7
425 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
426 CA.pl for serial number initialization. With the new release 0.9.8,
427 we can fix the problem directly in the 'ca' utility.)
430 *) Reduced header interdepencies by declaring more opaque objects in
431 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
432 give fewer recursive includes, which could break lazy source code - so
433 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
434 developers should define this symbol when building and using openssl to
435 ensure they track the recommended behaviour, interfaces, [etc], but
436 backwards-compatible behaviour prevails when this isn't defined.
439 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
442 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
443 This will generate a random key of the appropriate length based on the
444 cipher context. The EVP_CIPHER can provide its own random key generation
445 routine to support keys of a specific form. This is used in the des and
446 3des routines to generate a key of the correct parity. Update S/MIME
447 code to use new functions and hence generate correct parity DES keys.
448 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
449 valid (weak or incorrect parity).
452 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
453 as looking them up. This is useful when the verified structure may contain
454 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
455 present unless the new PKCS7_NO_CRL flag is asserted.
458 *) Extend ASN1 oid configuration module. It now additionally accepts the
461 shortName = some long name, 1.2.3.4
464 *) Reimplemented the BN_CTX implementation. There is now no more static
465 limitation on the number of variables it can handle nor the depth of the
466 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
467 information can now expand as required, and rather than having a single
468 static array of bignums, BN_CTX now uses a linked-list of such arrays
469 allowing it to expand on demand whilst maintaining the usefulness of
473 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
474 to allow all RSA operations to function using a single BN_CTX.
477 *) Preliminary support for certificate policy evaluation and checking. This
478 is initially intended to pass the tests outlined in "Conformance Testing
479 of Relying Party Client Certificate Path Processing Logic" v1.07.
482 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
483 remained unused and not that useful. A variety of other little bignum
484 tweaks and fixes have also been made continuing on from the audit (see
488 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
489 associated ASN1, EVP and SSL functions and old ASN1 macros.
492 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
493 and this should never fail. So the return value from the use of
494 BN_set_word() (which can fail due to needless expansion) is now deprecated;
495 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
498 *) BN_CTX_get() should return zero-valued bignums, providing the same
499 initialised value as BN_new().
500 [Geoff Thorpe, suggested by Ulf Möller]
502 *) Support for inhibitAnyPolicy certificate extension.
505 *) An audit of the BIGNUM code is underway, for which debugging code is
506 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
507 is considered valid when processing BIGNUMs, and causes execution to
508 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
509 further steps are taken to deliberately pollute unused data in BIGNUM
510 structures to try and expose faulty code further on. For now, openssl will
511 (in its default mode of operation) continue to tolerate the inconsistent
512 forms that it has tolerated in the past, but authors and packagers should
513 consider trying openssl and their own applications when compiled with
514 these debugging symbols defined. It will help highlight potential bugs in
515 their own code, and will improve the test coverage for OpenSSL itself. At
516 some point, these tighter rules will become openssl's default to improve
517 maintainability, though the assert()s and other overheads will remain only
518 in debugging configurations. See bn.h for more details.
519 [Geoff Thorpe, Nils Larsch, Ulf Möller]
521 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
522 that can only be obtained through BN_CTX_new() (which implicitly
523 initialises it). The presence of this function only made it possible
524 to overwrite an existing structure (and cause memory leaks).
527 *) Because of the callback-based approach for implementing LHASH as a
528 template type, lh_insert() adds opaque objects to hash-tables and
529 lh_doall() or lh_doall_arg() are typically used with a destructor callback
530 to clean up those corresponding objects before destroying the hash table
531 (and losing the object pointers). So some over-zealous constifications in
532 LHASH have been relaxed so that lh_insert() does not take (nor store) the
533 objects as "const" and the lh_doall[_arg] callback wrappers are not
534 prototyped to have "const" restrictions on the object pointers they are
535 given (and so aren't required to cast them away any more).
538 *) The tmdiff.h API was so ugly and minimal that our own timing utility
539 (speed) prefers to use its own implementation. The two implementations
540 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
541 its object type properly exposed (MS_TM) instead of casting to/from "char
542 *". This may still change yet if someone realises MS_TM and "ms_time_***"
543 aren't necessarily the greatest nomenclatures - but this is what was used
544 internally to the implementation so I've used that for now.
547 *) Ensure that deprecated functions do not get compiled when
548 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
549 the self-tests were still using deprecated key-generation functions so
550 these have been updated also.
553 *) Reorganise PKCS#7 code to separate the digest location functionality
554 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
555 New function PKCS7_set_digest() to set the digest type for PKCS#7
556 digestedData type. Add additional code to correctly generate the
557 digestedData type and add support for this type in PKCS7 initialization
561 *) New function PKCS7_set0_type_other() this initializes a PKCS7
562 structure of type "other".
565 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
566 sure the loop does correctly stop and breaking ("division by zero")
567 modulus operations are not performed. The (pre-generated) prime
568 table crypto/bn/bn_prime.h was already correct, but it could not be
569 re-generated on some platforms because of the "division by zero"
570 situation in the script.
571 [Ralf S. Engelschall]
573 *) Update support for ECC-based TLS ciphersuites according to
574 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
575 SHA-1 now is only used for "small" curves (where the
576 representation of a field element takes up to 24 bytes); for
577 larger curves, the field element resulting from ECDH is directly
578 used as premaster secret.
579 [Douglas Stebila (Sun Microsystems Laboratories)]
581 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
582 curve secp160r1 to the tests.
583 [Douglas Stebila (Sun Microsystems Laboratories)]
585 *) Add the possibility to load symbols globally with DSO.
586 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
588 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
589 control of the error stack.
592 *) Add support for STORE in ENGINE.
595 *) Add the STORE type. The intention is to provide a common interface
596 to certificate and key stores, be they simple file-based stores, or
597 HSM-type store, or LDAP stores, or...
598 NOTE: The code is currently UNTESTED and isn't really used anywhere.
601 *) Add a generic structure called OPENSSL_ITEM. This can be used to
602 pass a list of arguments to any function as well as provide a way
603 for a function to pass data back to the caller.
606 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
607 works like BUF_strdup() but can be used to duplicate a portion of
608 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
612 *) Add the function sk_find_ex() which works like sk_find(), but will
613 return an index to an element even if an exact match couldn't be
614 found. The index is guaranteed to point at the element where the
615 searched-for key would be inserted to preserve sorting order.
618 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
619 takes an extra flags argument for optional functionality. Currently,
620 the following flags are defined:
622 OBJ_BSEARCH_VALUE_ON_NOMATCH
623 This one gets OBJ_bsearch_ex() to return a pointer to the first
624 element where the comparing function returns a negative or zero
627 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
628 This one gets OBJ_bsearch_ex() to return a pointer to the first
629 element where the comparing function returns zero. This is useful
630 if there are more than one element where the comparing function
634 *) Make it possible to create self-signed certificates with 'openssl ca'
635 in such a way that the self-signed certificate becomes part of the
636 CA database and uses the same mechanisms for serial number generation
637 as all other certificate signing. The new flag '-selfsign' enables
638 this functionality. Adapt CA.sh and CA.pl.in.
641 *) Add functionality to check the public key of a certificate request
642 against a given private. This is useful to check that a certificate
643 request can be signed by that key (self-signing).
646 *) Make it possible to have multiple active certificates with the same
647 subject in the CA index file. This is done only if the keyword
648 'unique_subject' is set to 'no' in the main CA section (default
649 if 'CA_default') of the configuration file. The value is saved
650 with the database itself in a separate index attribute file,
651 named like the index file with '.attr' appended to the name.
654 *) Generate muti valued AVAs using '+' notation in config files for
658 *) Support for nameConstraints certificate extension.
661 *) Support for policyConstraints certificate extension.
664 *) Support for policyMappings certificate extension.
667 *) Make sure the default DSA_METHOD implementation only uses its
668 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
669 and change its own handlers to be NULL so as to remove unnecessary
670 indirection. This lets alternative implementations fallback to the
671 default implementation more easily.
674 *) Support for directoryName in GeneralName related extensions
678 *) Make it possible to link applications using Makefile.shared.
679 Make that possible even when linking against static libraries!
682 *) Support for single pass processing for S/MIME signing. This now
683 means that S/MIME signing can be done from a pipe, in addition
684 cleartext signing (multipart/signed type) is effectively streaming
685 and the signed data does not need to be all held in memory.
687 This is done with a new flag PKCS7_STREAM. When this flag is set
688 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
689 is done after the data is output (and digests calculated) in
693 *) Add full support for -rpath/-R, both in shared libraries and
694 applications, at least on the platforms where it's known how
698 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
699 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
700 will now compute a table of multiples of the generator that
701 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
702 faster (notably in the case of a single point multiplication,
704 [Nils Larsch, Bodo Moeller]
706 *) IPv6 support for certificate extensions. The various extensions
707 which use the IP:a.b.c.d can now take IPv6 addresses using the
708 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
712 *) Added an ENGINE that implements RSA by performing private key
713 exponentiations with the GMP library. The conversions to and from
714 GMP's mpz_t format aren't optimised nor are any montgomery forms
715 cached, and on x86 it appears OpenSSL's own performance has caught up.
716 However there are likely to be other architectures where GMP could
717 provide a boost. This ENGINE is not built in by default, but it can be
718 specified at Configure time and should be accompanied by the necessary
719 linker additions, eg;
720 ./config -DOPENSSL_USE_GMP -lgmp
723 *) "openssl engine" will not display ENGINE/DSO load failure errors when
724 testing availability of engines with "-t" - the old behaviour is
725 produced by increasing the feature's verbosity with "-tt".
728 *) ECDSA routines: under certain error conditions uninitialized BN objects
729 could be freed. Solution: make sure initialization is performed early
730 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
734 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
735 and DH_METHOD (eg. by ENGINE implementations) to override the normal
736 software implementations. For DSA and DH, parameter generation can
737 also be overriden by providing the appropriate method callbacks.
740 *) Change the "progress" mechanism used in key-generation and
741 primality testing to functions that take a new BN_GENCB pointer in
742 place of callback/argument pairs. The new API functions have "_ex"
743 postfixes and the older functions are reimplemented as wrappers for
744 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
745 declarations of the old functions to help (graceful) attempts to
746 migrate to the new functions. Also, the new key-generation API
747 functions operate on a caller-supplied key-structure and return
748 success/failure rather than returning a key or NULL - this is to
749 help make "keygen" another member function of RSA_METHOD etc.
751 Example for using the new callback interface:
753 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
757 BN_GENCB_set(&my_cb, my_callback, my_arg);
759 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
760 /* For the meaning of a, b in calls to my_callback(), see the
761 * documentation of the function that calls the callback.
762 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
763 * my_callback should return 1 if it wants BN_is_prime_ex()
764 * to continue, or 0 to stop.
769 *) Change the ZLIB compression method to be stateful, and make it
770 available to TLS with the number defined in
771 draft-ietf-tls-compression-04.txt.
774 *) Add the ASN.1 structures and functions for CertificatePair, which
775 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
777 CertificatePair ::= SEQUENCE {
778 forward [0] Certificate OPTIONAL,
779 reverse [1] Certificate OPTIONAL,
780 -- at least one of the pair shall be present -- }
782 Also implement the PEM functions to read and write certificate
783 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
785 This needed to be defined, mostly for the sake of the LDAP
786 attribute crossCertificatePair, but may prove useful elsewhere as
790 *) Make it possible to inhibit symlinking of shared libraries in
791 Makefile.shared, for Cygwin's sake.
794 *) Extend the BIGNUM API by creating a function
795 void BN_set_negative(BIGNUM *a, int neg);
796 and a macro that behave like
797 int BN_is_negative(const BIGNUM *a);
799 to avoid the need to access 'a->neg' directly in applications.
802 *) Implement fast modular reduction for pseudo-Mersenne primes
803 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
804 EC_GROUP_new_curve_GFp() will now automatically use this
806 [Nils Larsch <nla@trustcenter.de>]
808 *) Add new lock type (CRYPTO_LOCK_BN).
811 *) Change the ENGINE framework to automatically load engines
812 dynamically from specific directories unless they could be
813 found to already be built in or loaded. Move all the
814 current engines except for the cryptodev one to a new
816 The engines in engines/ are built as shared libraries if
817 the "shared" options was given to ./Configure or ./config.
818 Otherwise, they are inserted in libcrypto.a.
819 /usr/local/ssl/engines is the default directory for dynamic
820 engines, but that can be overriden at configure time through
821 the usual use of --prefix and/or --openssldir, and at run
822 time with the environment variable OPENSSL_ENGINES.
823 [Geoff Thorpe and Richard Levitte]
825 *) Add Makefile.shared, a helper makefile to build shared
826 libraries. Addapt Makefile.org.
829 *) Add version info to Win32 DLLs.
830 [Peter 'Luna' Runestig" <peter@runestig.com>]
832 *) Add new 'medium level' PKCS#12 API. Certificates and keys
833 can be added using this API to created arbitrary PKCS#12
834 files while avoiding the low level API.
836 New options to PKCS12_create(), key or cert can be NULL and
837 will then be omitted from the output file. The encryption
838 algorithm NIDs can be set to -1 for no encryption, the mac
839 iteration count can be set to 0 to omit the mac.
841 Enhance pkcs12 utility by making the -nokeys and -nocerts
842 options work when creating a PKCS#12 file. New option -nomac
843 to omit the mac, NONE can be set for an encryption algorithm.
844 New code is modified to use the enhanced PKCS12_create()
845 instead of the low level API.
848 *) Extend ASN1 encoder to support indefinite length constructed
849 encoding. This can output sequences tags and octet strings in
850 this form. Modify pk7_asn1.c to support indefinite length
851 encoding. This is experimental and needs additional code to
852 be useful, such as an ASN1 bio and some enhanced streaming
855 Extend template encode functionality so that tagging is passed
856 down to the template encoder.
859 *) Let 'openssl req' fail if an argument to '-newkey' is not
860 recognized instead of using RSA as a default.
863 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
864 As these are not official, they are not included in "ALL";
865 the "ECCdraft" ciphersuite group alias can be used to select them.
866 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
868 *) Add ECDH engine support.
869 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
871 *) Add ECDH in new directory crypto/ecdh/.
872 [Douglas Stebila (Sun Microsystems Laboratories)]
874 *) Let BN_rand_range() abort with an error after 100 iterations
875 without success (which indicates a broken PRNG).
878 *) Change BN_mod_sqrt() so that it verifies that the input value
879 is really the square of the return value. (Previously,
880 BN_mod_sqrt would show GIGO behaviour.)
883 *) Add named elliptic curves over binary fields from X9.62, SECG,
884 and WAP/WTLS; add OIDs that were still missing.
886 [Sheueling Chang Shantz and Douglas Stebila
887 (Sun Microsystems Laboratories)]
889 *) Extend the EC library for elliptic curves over binary fields
890 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
893 EC_GF2m_simple_method
897 EC_GROUP_new_curve_GF2m
898 EC_GROUP_set_curve_GF2m
899 EC_GROUP_get_curve_GF2m
900 EC_POINT_set_affine_coordinates_GF2m
901 EC_POINT_get_affine_coordinates_GF2m
902 EC_POINT_set_compressed_coordinates_GF2m
904 Point compression for binary fields is disabled by default for
905 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
908 As binary polynomials are represented as BIGNUMs, various members
909 of the EC_GROUP and EC_POINT data structures can be shared
910 between the implementations for prime fields and binary fields;
911 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
912 are essentially identical to their ..._GFp counterparts.
913 (For simplicity, the '..._GFp' prefix has been dropped from
914 various internal method names.)
916 An internal 'field_div' method (similar to 'field_mul' and
917 'field_sqr') has been added; this is used only for binary fields.
919 [Sheueling Chang Shantz and Douglas Stebila
920 (Sun Microsystems Laboratories)]
922 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
923 through methods ('mul', 'precompute_mult').
925 The generic implementations (now internally called 'ec_wNAF_mul'
926 and 'ec_wNAF_precomputed_mult') remain the default if these
927 methods are undefined.
929 [Sheueling Chang Shantz and Douglas Stebila
930 (Sun Microsystems Laboratories)]
932 *) New function EC_GROUP_get_degree, which is defined through
933 EC_METHOD. For curves over prime fields, this returns the bit
934 length of the modulus.
936 [Sheueling Chang Shantz and Douglas Stebila
937 (Sun Microsystems Laboratories)]
939 *) New functions EC_GROUP_dup, EC_POINT_dup.
940 (These simply call ..._new and ..._copy).
942 [Sheueling Chang Shantz and Douglas Stebila
943 (Sun Microsystems Laboratories)]
945 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
946 Polynomials are represented as BIGNUMs (where the sign bit is not
947 used) in the following functions [macros]:
950 BN_GF2m_sub [= BN_GF2m_add]
951 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
952 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
953 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
955 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
956 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
957 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
958 BN_GF2m_cmp [= BN_ucmp]
960 (Note that only the 'mod' functions are actually for fields GF(2^m).
961 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
963 For some functions, an the irreducible polynomial defining a
964 field can be given as an 'unsigned int[]' with strictly
965 decreasing elements giving the indices of those bits that are set;
966 i.e., p[] represents the polynomial
967 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
969 p[0] > p[1] > ... > p[k] = 0.
970 This applies to the following functions:
975 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
976 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
979 BN_GF2m_mod_solve_quad_arr
983 Conversion can be performed by the following functions:
988 bntest.c has additional tests for binary polynomial arithmetic.
990 Two implementations for BN_GF2m_mod_div() are available.
991 The default algorithm simply uses BN_GF2m_mod_inv() and
992 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
993 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
994 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
996 [Sheueling Chang Shantz and Douglas Stebila
997 (Sun Microsystems Laboratories)]
999 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1000 functionality is disabled at compile-time.
1001 [Douglas Stebila <douglas.stebila@sun.com>]
1003 *) Change default behaviour of 'openssl asn1parse' so that more
1004 information is visible when viewing, e.g., a certificate:
1006 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1007 mode the content of non-printable OCTET STRINGs is output in a
1008 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1009 avoid the appearance of a printable string.
1010 [Nils Larsch <nla@trustcenter.de>]
1012 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1014 EC_GROUP_set_asn1_flag()
1015 EC_GROUP_get_asn1_flag()
1016 EC_GROUP_set_point_conversion_form()
1017 EC_GROUP_get_point_conversion_form()
1018 These control ASN1 encoding details:
1019 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1020 has been set to OPENSSL_EC_NAMED_CURVE.
1021 - Points are encoded in uncompressed form by default; options for
1022 asn1_for are as for point2oct, namely
1023 POINT_CONVERSION_COMPRESSED
1024 POINT_CONVERSION_UNCOMPRESSED
1025 POINT_CONVERSION_HYBRID
1027 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1030 EC_GROUP_get0_seed()
1031 EC_GROUP_get_seed_len()
1032 This is used only for ASN1 purposes (so far).
1033 [Nils Larsch <nla@trustcenter.de>]
1035 *) Add 'field_type' member to EC_METHOD, which holds the NID
1036 of the appropriate field type OID. The new function
1037 EC_METHOD_get_field_type() returns this value.
1038 [Nils Larsch <nla@trustcenter.de>]
1043 EC_POINT_point2hex()
1044 EC_POINT_hex2point()
1045 providing useful interfaces to EC_POINT_point2oct() and
1046 EC_POINT_oct2point().
1047 [Nils Larsch <nla@trustcenter.de>]
1049 *) Change internals of the EC library so that the functions
1050 EC_GROUP_set_generator()
1051 EC_GROUP_get_generator()
1052 EC_GROUP_get_order()
1053 EC_GROUP_get_cofactor()
1054 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1055 to methods, which would lead to unnecessary code duplication when
1056 adding different types of curves.
1057 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1059 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1060 arithmetic, and such that modified wNAFs are generated
1061 (which avoid length expansion in many cases).
1064 *) Add a function EC_GROUP_check_discriminant() (defined via
1065 EC_METHOD) that verifies that the curve discriminant is non-zero.
1067 Add a function EC_GROUP_check() that makes some sanity tests
1068 on a EC_GROUP, its generator and order. This includes
1069 EC_GROUP_check_discriminant().
1070 [Nils Larsch <nla@trustcenter.de>]
1072 *) Add ECDSA in new directory crypto/ecdsa/.
1074 Add applications 'openssl ecparam' and 'openssl ecdsa'
1075 (these are based on 'openssl dsaparam' and 'openssl dsa').
1077 ECDSA support is also included in various other files across the
1078 library. Most notably,
1079 - 'openssl req' now has a '-newkey ecdsa:file' option;
1080 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1081 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1082 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1083 them suitable for ECDSA where domain parameters must be
1084 extracted before the specific public key;
1085 - ECDSA engine support has been added.
1086 [Nils Larsch <nla@trustcenter.de>]
1088 *) Include some named elliptic curves, and add OIDs from X9.62,
1089 SECG, and WAP/WTLS. Each curve can be obtained from the new
1091 EC_GROUP_new_by_curve_name(),
1092 and the list of available named curves can be obtained with
1093 EC_get_builtin_curves().
1094 Also add a 'curve_name' member to EC_GROUP objects, which can be
1096 EC_GROUP_set_curve_name()
1097 EC_GROUP_get_curve_name()
1098 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1100 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1101 was actually never needed) and in BN_mul(). The removal in BN_mul()
1102 required a small change in bn_mul_part_recursive() and the addition
1103 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1104 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1105 bn_sub_words() and bn_add_words() except they take arrays with
1109 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1111 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1112 The value now differs depending on if you build for FIPS or not.
1113 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1114 safely run with a non-FIPSed libcrypto, as it may crash because of
1115 the difference induced by this change.
1118 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1120 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1121 (part of SSL_OP_ALL). This option used to disable the
1122 countermeasure against man-in-the-middle protocol-version
1123 rollback in the SSL 2.0 server implementation, which is a bad
1124 idea. (CVE-2005-2969)
1126 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1127 for Information Security, National Institute of Advanced Industrial
1128 Science and Technology [AIST], Japan)]
1130 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1131 mainly for FIPS compliance and not fully integrated at this stage.
1134 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1135 the exponentiation using a fixed-length exponent. (Otherwise,
1136 the information leaked through timing could expose the secret key
1137 after many signatures; cf. Bleichenbacher's attack on DSA with
1141 *) Make a new fixed-window mod_exp implementation the default for
1142 RSA, DSA, and DH private-key operations so that the sequence of
1143 squares and multiplies and the memory access pattern are
1144 independent of the particular secret key. This will mitigate
1145 cache-timing and potential related attacks.
1147 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1148 and this is automatically used by BN_mod_exp_mont() if the new flag
1149 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1150 will use this BN flag for private exponents unless the flag
1151 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1152 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1154 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1156 *) Change the client implementation for SSLv23_method() and
1157 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1158 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1159 (Previously, the SSL 2.0 backwards compatible Client Hello
1160 message format would be used even with SSL_OP_NO_SSLv2.)
1163 *) Add support for smime-type MIME parameter in S/MIME messages which some
1167 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1168 a threadsafe manner. Modify rsa code to use new function and add calls
1169 to dsa and dh code (which had race conditions before).
1172 *) Include the fixed error library code in the C error file definitions
1173 instead of fixing them up at runtime. This keeps the error code
1174 structures constant.
1177 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1179 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1182 *) Fixes for newer kerberos headers. NB: the casts are needed because
1183 the 'length' field is signed on one version and unsigned on another
1184 with no (?) obvious way to tell the difference, without these VC++
1185 complains. Also the "definition" of FAR (blank) is no longer included
1186 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1187 some needed definitions.
1190 *) Undo Cygwin change.
1193 *) Added support for proxy certificates according to RFC 3820.
1194 Because they may be a security thread to unaware applications,
1195 they must be explicitely allowed in run-time. See
1196 docs/HOWTO/proxy_certificates.txt for further information.
1199 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1201 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1202 server and client random values. Previously
1203 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1204 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1206 This change has negligible security impact because:
1208 1. Server and client random values still have 24 bytes of pseudo random
1211 2. Server and client random values are sent in the clear in the initial
1214 3. The master secret is derived using the premaster secret (48 bytes in
1215 size for static RSA ciphersuites) as well as client server and random
1218 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1221 [Stephen Henson, reported by UK NISCC]
1223 *) Use Windows randomness collection on Cygwin.
1226 *) Fix hang in EGD/PRNGD query when communication socket is closed
1227 prematurely by EGD/PRNGD.
1228 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1230 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1233 *) Back-port of selected performance improvements from development
1234 branch, as well as improved support for PowerPC platforms.
1237 *) Add lots of checks for memory allocation failure, error codes to indicate
1238 failure and freeing up memory if a failure occurs.
1239 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1241 *) Add new -passin argument to dgst.
1244 *) Perform some character comparisons of different types in X509_NAME_cmp:
1245 this is needed for some certificates that reencode DNs into UTF8Strings
1246 (in violation of RFC3280) and can't or wont issue name rollover
1250 *) Make an explicit check during certificate validation to see that
1251 the CA setting in each certificate on the chain is correct. As a
1252 side effect always do the following basic checks on extensions,
1253 not just when there's an associated purpose to the check:
1255 - if there is an unhandled critical extension (unless the user
1256 has chosen to ignore this fault)
1257 - if the path length has been exceeded (if one is set at all)
1258 - that certain extensions fit the associated purpose (if one has
1262 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1264 *) Avoid a race condition when CRLs are checked in a multi threaded
1265 environment. This would happen due to the reordering of the revoked
1266 entries during signature checking and serial number lookup. Now the
1267 encoding is cached and the serial number sort performed under a lock.
1268 Add new STACK function sk_is_sorted().
1271 *) Add Delta CRL to the extension code.
1274 *) Various fixes to s3_pkt.c so alerts are sent properly.
1275 [David Holmes <d.holmes@f5.com>]
1277 *) Reduce the chances of duplicate issuer name and serial numbers (in
1278 violation of RFC3280) using the OpenSSL certificate creation utilities.
1279 This is done by creating a random 64 bit value for the initial serial
1280 number when a serial number file is created or when a self signed
1281 certificate is created using 'openssl req -x509'. The initial serial
1282 number file is created using 'openssl x509 -next_serial' in CA.pl
1283 rather than being initialized to 1.
1286 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1288 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1289 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1290 [Joe Orton, Steve Henson]
1292 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1294 [Joe Orton, Steve Henson]
1296 *) Make it possible to have multiple active certificates with the same
1297 subject in the CA index file. This is done only if the keyword
1298 'unique_subject' is set to 'no' in the main CA section (default
1299 if 'CA_default') of the configuration file. The value is saved
1300 with the database itself in a separate index attribute file,
1301 named like the index file with '.attr' appended to the name.
1304 *) X509 verify fixes. Disable broken certificate workarounds when
1305 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1306 keyUsage extension present. Don't accept CRLs with unhandled critical
1307 extensions: since verify currently doesn't process CRL extensions this
1308 rejects a CRL with *any* critical extensions. Add new verify error codes
1312 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1313 A clarification of RFC2560 will require the use of OCTET STRINGs and
1314 some implementations cannot handle the current raw format. Since OpenSSL
1315 copies and compares OCSP nonces as opaque blobs without any attempt at
1316 parsing them this should not create any compatibility issues.
1319 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1320 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1321 this HMAC (and other) operations are several times slower than OpenSSL
1325 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1326 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1328 *) Use the correct content when signing type "other".
1331 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1333 *) Fix various bugs revealed by running the NISCC test suite:
1335 Stop out of bounds reads in the ASN1 code when presented with
1336 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1338 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1340 If verify callback ignores invalid public key errors don't try to check
1341 certificate signature with the NULL public key.
1345 *) New -ignore_err option in ocsp application to stop the server
1346 exiting on the first error in a request.
1349 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1350 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1354 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1355 extra data after the compression methods not only for TLS 1.0
1356 but also for SSL 3.0 (as required by the specification).
1357 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1359 *) Change X509_certificate_type() to mark the key as exported/exportable
1360 when it's 512 *bits* long, not 512 bytes.
1363 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1364 blocks during encryption.
1367 *) Various fixes to base64 BIO and non blocking I/O. On write
1368 flushes were not handled properly if the BIO retried. On read
1369 data was not being buffered properly and had various logic bugs.
1370 This also affects blocking I/O when the data being decoded is a
1374 *) Various S/MIME bugfixes and compatibility changes:
1375 output correct application/pkcs7 MIME type if
1376 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1377 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1378 of files as .eml work). Correctly handle very long lines in MIME
1382 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1384 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1385 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1386 a protocol version number mismatch like a decryption error
1387 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1390 *) Turn on RSA blinding by default in the default implementation
1391 to avoid a timing attack. Applications that don't want it can call
1392 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1393 They would be ill-advised to do so in most cases.
1394 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1396 *) Change RSA blinding code so that it works when the PRNG is not
1397 seeded (in this case, the secret RSA exponent is abused as
1398 an unpredictable seed -- if it is not unpredictable, there
1399 is no point in blinding anyway). Make RSA blinding thread-safe
1400 by remembering the creator's thread ID in rsa->blinding and
1401 having all other threads use local one-time blinding factors
1402 (this requires more computation than sharing rsa->blinding, but
1403 avoids excessive locking; and if an RSA object is not shared
1404 between threads, blinding will still be very fast).
1407 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1408 ENGINE as defaults for all supported algorithms irrespective of
1409 the 'flags' parameter. 'flags' is now honoured, so applications
1410 should make sure they are passing it correctly.
1413 *) Target "mingw" now allows native Windows code to be generated in
1414 the Cygwin environment as well as with the MinGW compiler.
1417 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1419 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1420 via timing by performing a MAC computation even if incorrrect
1421 block cipher padding has been found. This is a countermeasure
1422 against active attacks where the attacker has to distinguish
1423 between bad padding and a MAC verification error. (CVE-2003-0078)
1425 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1426 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1427 Martin Vuagnoux (EPFL, Ilion)]
1429 *) Make the no-err option work as intended. The intention with no-err
1430 is not to have the whole error stack handling routines removed from
1431 libcrypto, it's only intended to remove all the function name and
1432 reason texts, thereby removing some of the footprint that may not
1433 be interesting if those errors aren't displayed anyway.
1435 NOTE: it's still possible for any application or module to have it's
1436 own set of error texts inserted. The routines are there, just not
1437 used by default when no-err is given.
1440 *) Add support for FreeBSD on IA64.
1441 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1443 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1444 Kerberos function mit_des_cbc_cksum(). Before this change,
1445 the value returned by DES_cbc_cksum() was like the one from
1446 mit_des_cbc_cksum(), except the bytes were swapped.
1447 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1449 *) Allow an application to disable the automatic SSL chain building.
1450 Before this a rather primitive chain build was always performed in
1451 ssl3_output_cert_chain(): an application had no way to send the
1452 correct chain if the automatic operation produced an incorrect result.
1454 Now the chain builder is disabled if either:
1456 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1458 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1460 The reasoning behind this is that an application would not want the
1461 auto chain building to take place if extra chain certificates are
1462 present and it might also want a means of sending no additional
1463 certificates (for example the chain has two certificates and the
1467 *) Add the possibility to build without the ENGINE framework.
1468 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1470 *) Under Win32 gmtime() can return NULL: check return value in
1471 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1474 *) DSA routines: under certain error conditions uninitialized BN objects
1475 could be freed. Solution: make sure initialization is performed early
1476 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1477 Nils Larsch <nla@trustcenter.de> via PR#459)
1480 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1481 checked on reconnect on the client side, therefore session resumption
1482 could still fail with a "ssl session id is different" error. This
1483 behaviour is masked when SSL_OP_ALL is used due to
1484 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1485 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1486 followup to PR #377.
1489 *) IA-32 assembler support enhancements: unified ELF targets, support
1490 for SCO/Caldera platforms, fix for Cygwin shared build.
1493 *) Add support for FreeBSD on sparc64. As a consequence, support for
1494 FreeBSD on non-x86 processors is separate from x86 processors on
1495 the config script, much like the NetBSD support.
1496 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1498 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1500 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1503 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1504 code (06) was taken as the first octet of the session ID and the last
1505 octet was ignored consequently. As a result SSLv2 client side session
1506 caching could not have worked due to the session ID mismatch between
1508 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1512 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1513 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1517 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1518 seems that in spite of existing for more than a year, many application
1519 author have done nothing to provide the necessary callbacks, which
1520 means that this particular engine will not work properly anywhere.
1521 This is a very unfortunate situation which forces us, in the name
1522 of usability, to give the hw_ncipher.c a static lock, which is part
1524 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1525 appear in 0.9.8 or later. We EXPECT application authors to have
1526 dealt properly with this when 0.9.8 is released (unless we actually
1527 make such changes in the libcrypto locking code that changes will
1528 have to be made anyway).
1531 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1532 octets have been read, EOF or an error occurs. Without this change
1533 some truncated ASN1 structures will not produce an error.
1536 *) Disable Heimdal support, since it hasn't been fully implemented.
1537 Still give the possibility to force the use of Heimdal, but with
1538 warnings and a request that patches get sent to openssl-dev.
1541 *) Add the VC-CE target, introduce the WINCE sysname, and add
1542 INSTALL.WCE and appropriate conditionals to make it build.
1543 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1545 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1546 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1547 edit numbers of the version.
1548 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1550 *) Introduce safe string copy and catenation functions
1551 (BUF_strlcpy() and BUF_strlcat()).
1552 [Ben Laurie (CHATS) and Richard Levitte]
1554 *) Avoid using fixed-size buffers for one-line DNs.
1555 [Ben Laurie (CHATS)]
1557 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1558 resizing buffers containing secrets, and use where appropriate.
1559 [Ben Laurie (CHATS)]
1561 *) Avoid using fixed size buffers for configuration file location.
1562 [Ben Laurie (CHATS)]
1564 *) Avoid filename truncation for various CA files.
1565 [Ben Laurie (CHATS)]
1567 *) Use sizeof in preference to magic numbers.
1568 [Ben Laurie (CHATS)]
1570 *) Avoid filename truncation in cert requests.
1571 [Ben Laurie (CHATS)]
1573 *) Add assertions to check for (supposedly impossible) buffer
1575 [Ben Laurie (CHATS)]
1577 *) Don't cache truncated DNS entries in the local cache (this could
1578 potentially lead to a spoofing attack).
1579 [Ben Laurie (CHATS)]
1581 *) Fix various buffers to be large enough for hex/decimal
1582 representations in a platform independent manner.
1583 [Ben Laurie (CHATS)]
1585 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1586 resizing buffers containing secrets, and use where appropriate.
1587 [Ben Laurie (CHATS)]
1589 *) Add BIO_indent() to avoid much slightly worrying code to do
1591 [Ben Laurie (CHATS)]
1593 *) Convert sprintf()/BIO_puts() to BIO_printf().
1594 [Ben Laurie (CHATS)]
1596 *) buffer_gets() could terminate with the buffer only half
1598 [Ben Laurie (CHATS)]
1600 *) Add assertions to prevent user-supplied crypto functions from
1601 overflowing internal buffers by having large block sizes, etc.
1602 [Ben Laurie (CHATS)]
1604 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1606 [Ben Laurie (CHATS)]
1608 *) Eliminate unused copy of key in RC4.
1609 [Ben Laurie (CHATS)]
1611 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1612 [Ben Laurie (CHATS)]
1614 *) Fix off-by-one error in EGD path.
1615 [Ben Laurie (CHATS)]
1617 *) If RANDFILE path is too long, ignore instead of truncating.
1618 [Ben Laurie (CHATS)]
1620 *) Eliminate unused and incorrectly sized X.509 structure
1622 [Ben Laurie (CHATS)]
1624 *) Eliminate unused and dangerous function knumber().
1625 [Ben Laurie (CHATS)]
1627 *) Eliminate unused and dangerous structure, KSSL_ERR.
1628 [Ben Laurie (CHATS)]
1630 *) Protect against overlong session ID context length in an encoded
1631 session object. Since these are local, this does not appear to be
1633 [Ben Laurie (CHATS)]
1635 *) Change from security patch (see 0.9.6e below) that did not affect
1636 the 0.9.6 release series:
1638 Remote buffer overflow in SSL3 protocol - an attacker could
1639 supply an oversized master key in Kerberos-enabled versions.
1641 [Ben Laurie (CHATS)]
1643 *) Change the SSL kerb5 codes to match RFC 2712.
1646 *) Make -nameopt work fully for req and add -reqopt switch.
1647 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
1649 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
1650 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
1652 *) Make sure tests can be performed even if the corresponding algorithms
1653 have been removed entirely. This was also the last step to make
1654 OpenSSL compilable with DJGPP under all reasonable conditions.
1655 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
1657 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
1658 to allow version independent disabling of normally unselected ciphers,
1659 which may be activated as a side-effect of selecting a single cipher.
1661 (E.g., cipher list string "RSA" enables ciphersuites that are left
1662 out of "ALL" because they do not provide symmetric encryption.
1663 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
1664 [Lutz Jaenicke, Bodo Moeller]
1666 *) Add appropriate support for separate platform-dependent build
1667 directories. The recommended way to make a platform-dependent
1668 build directory is the following (tested on Linux), maybe with
1671 # Place yourself outside of the OpenSSL source tree. In
1672 # this example, the environment variable OPENSSL_SOURCE
1673 # is assumed to contain the absolute OpenSSL source directory.
1674 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
1675 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
1676 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
1677 mkdir -p `dirname $F`
1678 ln -s $OPENSSL_SOURCE/$F $F
1681 To be absolutely sure not to disturb the source tree, a "make clean"
1682 is a good thing. If it isn't successfull, don't worry about it,
1683 it probably means the source directory is very clean.
1686 *) Make sure any ENGINE control commands make local copies of string
1687 pointers passed to them whenever necessary. Otherwise it is possible
1688 the caller may have overwritten (or deallocated) the original string
1689 data when a later ENGINE operation tries to use the stored values.
1690 [Götz Babin-Ebell <babinebell@trustcenter.de>]
1692 *) Improve diagnostics in file reading and command-line digests.
1693 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
1695 *) Add AES modes CFB and OFB to the object database. Correct an
1696 error in AES-CFB decryption.
1699 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
1700 allows existing EVP_CIPHER_CTX structures to be reused after
1701 calling EVP_*Final(). This behaviour is used by encryption
1702 BIOs and some applications. This has the side effect that
1703 applications must explicitly clean up cipher contexts with
1704 EVP_CIPHER_CTX_cleanup() or they will leak memory.
1707 *) Check the values of dna and dnb in bn_mul_recursive before calling
1708 bn_mul_comba (a non zero value means the a or b arrays do not contain
1709 n2 elements) and fallback to bn_mul_normal if either is not zero.
1712 *) Fix escaping of non-ASCII characters when using the -subj option
1713 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
1716 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
1717 form for "surname", serialNumber has no short form.
1718 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
1719 therefore remove "mail" short name for "internet 7".
1720 The OID for unique identifiers in X509 certificates is
1721 x500UniqueIdentifier, not uniqueIdentifier.
1722 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
1725 *) Add an "init" command to the ENGINE config module and auto initialize
1726 ENGINEs. Without any "init" command the ENGINE will be initialized
1727 after all ctrl commands have been executed on it. If init=1 the
1728 ENGINE is initailized at that point (ctrls before that point are run
1729 on the uninitialized ENGINE and after on the initialized one). If
1730 init=0 then the ENGINE will not be iniatialized at all.
1733 *) Fix the 'app_verify_callback' interface so that the user-defined
1734 argument is actually passed to the callback: In the
1735 SSL_CTX_set_cert_verify_callback() prototype, the callback
1736 declaration has been changed from
1739 int (*cb)(X509_STORE_CTX *,void *);
1740 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
1741 i=s->ctx->app_verify_callback(&ctx)
1742 has been changed into
1743 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
1745 To update applications using SSL_CTX_set_cert_verify_callback(),
1746 a dummy argument can be added to their callback functions.
1747 [D. K. Smetters <smetters@parc.xerox.com>]
1749 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
1750 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
1752 *) Add and OPENSSL_LOAD_CONF define which will cause
1753 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
1754 This allows older applications to transparently support certain
1755 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
1756 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
1757 load the config file and OPENSSL_add_all_algorithms_conf() which will
1758 always load it have also been added.
1761 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
1762 Adjust NIDs and EVP layer.
1763 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1765 *) Config modules support in openssl utility.
1767 Most commands now load modules from the config file,
1768 though in a few (such as version) this isn't done
1769 because it couldn't be used for anything.
1771 In the case of ca and req the config file used is
1772 the same as the utility itself: that is the -config
1773 command line option can be used to specify an
1777 *) Move default behaviour from OPENSSL_config(). If appname is NULL
1778 use "openssl_conf" if filename is NULL use default openssl config file.
1781 *) Add an argument to OPENSSL_config() to allow the use of an alternative
1782 config section name. Add a new flag to tolerate a missing config file
1783 and move code to CONF_modules_load_file().
1786 *) Support for crypto accelerator cards from Accelerated Encryption
1787 Processing, www.aep.ie. (Use engine 'aep')
1788 The support was copied from 0.9.6c [engine] and adapted/corrected
1789 to work with the new engine framework.
1790 [AEP Inc. and Richard Levitte]
1792 *) Support for SureWare crypto accelerator cards from Baltimore
1793 Technologies. (Use engine 'sureware')
1794 The support was copied from 0.9.6c [engine] and adapted
1795 to work with the new engine framework.
1798 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
1799 make the newer ENGINE framework commands for the CHIL engine work.
1800 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
1802 *) Make it possible to produce shared libraries on ReliantUNIX.
1803 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
1805 *) Add the configuration target debug-linux-ppro.
1806 Make 'openssl rsa' use the general key loading routines
1807 implemented in apps.c, and make those routines able to
1808 handle the key format FORMAT_NETSCAPE and the variant
1810 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1812 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
1813 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1815 *) Add -keyform to rsautl, and document -engine.
1816 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
1818 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
1819 BIO_R_NO_SUCH_FILE error code rather than the generic
1820 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
1823 *) Add new functions
1825 ERR_peek_last_error_line
1826 ERR_peek_last_error_line_data.
1827 These are similar to
1830 ERR_peek_error_line_data,
1831 but report on the latest error recorded rather than the first one
1832 still in the error queue.
1833 [Ben Laurie, Bodo Moeller]
1835 *) default_algorithms option in ENGINE config module. This allows things
1837 default_algorithms = ALL
1838 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
1841 *) Prelminary ENGINE config module.
1844 *) New experimental application configuration code.
1847 *) Change the AES code to follow the same name structure as all other
1848 symmetric ciphers, and behave the same way. Move everything to
1849 the directory crypto/aes, thereby obsoleting crypto/rijndael.
1850 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1852 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
1853 [Ben Laurie and Theo de Raadt]
1855 *) Add option to output public keys in req command.
1856 [Massimiliano Pala madwolf@openca.org]
1858 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
1859 (up to about 10% better than before for P-192 and P-224).
1862 *) New functions/macros
1864 SSL_CTX_set_msg_callback(ctx, cb)
1865 SSL_CTX_set_msg_callback_arg(ctx, arg)
1866 SSL_set_msg_callback(ssl, cb)
1867 SSL_set_msg_callback_arg(ssl, arg)
1869 to request calling a callback function
1871 void cb(int write_p, int version, int content_type,
1872 const void *buf, size_t len, SSL *ssl, void *arg)
1874 whenever a protocol message has been completely received
1875 (write_p == 0) or sent (write_p == 1). Here 'version' is the
1876 protocol version according to which the SSL library interprets
1877 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
1878 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
1879 the content type as defined in the SSL 3.0/TLS 1.0 protocol
1880 specification (change_cipher_spec(20), alert(21), handshake(22)).
1881 'buf' and 'len' point to the actual message, 'ssl' to the
1882 SSL object, and 'arg' is the application-defined value set by
1883 SSL[_CTX]_set_msg_callback_arg().
1885 'openssl s_client' and 'openssl s_server' have new '-msg' options
1886 to enable a callback that displays all protocol messages.
1889 *) Change the shared library support so shared libraries are built as
1890 soon as the corresponding static library is finished, and thereby get
1891 openssl and the test programs linked against the shared library.
1892 This still only happens when the keyword "shard" has been given to
1893 the configuration scripts.
1895 NOTE: shared library support is still an experimental thing, and
1896 backward binary compatibility is still not guaranteed.
1897 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
1899 *) Add support for Subject Information Access extension.
1900 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1902 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
1903 additional bytes when new memory had to be allocated, not just
1904 when reusing an existing buffer.
1907 *) New command line and configuration option 'utf8' for the req command.
1908 This allows field values to be specified as UTF8 strings.
1911 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
1912 runs for the former and machine-readable output for the latter.
1915 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
1916 of the e-mail address in the DN (i.e., it will go into a certificate
1917 extension only). The new configuration file option 'email_in_dn = no'
1918 has the same effect.
1919 [Massimiliano Pala madwolf@openca.org]
1921 *) Change all functions with names starting with des_ to be starting
1922 with DES_ instead. Add wrappers that are compatible with libdes,
1923 but are named _ossl_old_des_*. Finally, add macros that map the
1924 des_* symbols to the corresponding _ossl_old_des_* if libdes
1925 compatibility is desired. If OpenSSL 0.9.6c compatibility is
1926 desired, the des_* symbols will be mapped to DES_*, with one
1929 Since we provide two compatibility mappings, the user needs to
1930 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
1931 compatibility is desired. The default (i.e., when that macro
1932 isn't defined) is OpenSSL 0.9.6c compatibility.
1934 There are also macros that enable and disable the support of old
1935 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
1936 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
1937 are defined, the default will apply: to support the old des routines.
1939 In either case, one must include openssl/des.h to get the correct
1940 definitions. Do not try to just include openssl/des_old.h, that
1943 NOTE: This is a major break of an old API into a new one. Software
1944 authors are encouraged to switch to the DES_ style functions. Some
1945 time in the future, des_old.h and the libdes compatibility functions
1946 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
1947 default), and then completely removed.
1950 *) Test for certificates which contain unsupported critical extensions.
1951 If such a certificate is found during a verify operation it is
1952 rejected by default: this behaviour can be overridden by either
1953 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
1954 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
1955 X509_supported_extension() has also been added which returns 1 if a
1956 particular extension is supported.
1959 *) Modify the behaviour of EVP cipher functions in similar way to digests
1960 to retain compatibility with existing code.
1963 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
1964 compatibility with existing code. In particular the 'ctx' parameter does
1965 not have to be to be initialized before the call to EVP_DigestInit() and
1966 it is tidied up after a call to EVP_DigestFinal(). New function
1967 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
1968 EVP_MD_CTX_copy() changed to not require the destination to be
1969 initialized valid and new function EVP_MD_CTX_copy_ex() added which
1970 requires the destination to be valid.
1972 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
1973 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
1976 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
1977 so that complete 'Handshake' protocol structures are kept in memory
1978 instead of overwriting 'msg_type' and 'length' with 'body' data.
1981 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
1982 [Massimo Santin via Richard Levitte]
1984 *) Major restructuring to the underlying ENGINE code. This includes
1985 reduction of linker bloat, separation of pure "ENGINE" manipulation
1986 (initialisation, etc) from functionality dealing with implementations
1987 of specific crypto iterfaces. This change also introduces integrated
1988 support for symmetric ciphers and digest implementations - so ENGINEs
1989 can now accelerate these by providing EVP_CIPHER and EVP_MD
1990 implementations of their own. This is detailed in crypto/engine/README
1991 as it couldn't be adequately described here. However, there are a few
1992 API changes worth noting - some RSA, DSA, DH, and RAND functions that
1993 were changed in the original introduction of ENGINE code have now
1994 reverted back - the hooking from this code to ENGINE is now a good
1995 deal more passive and at run-time, operations deal directly with
1996 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
1997 dereferencing through an ENGINE pointer any more. Also, the ENGINE
1998 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
1999 they were not being used by the framework as there is no concept of a
2000 BIGNUM_METHOD and they could not be generalised to the new
2001 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2002 ENGINE_cpy() has been removed as it cannot be consistently defined in
2006 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2009 *) Change mkdef.pl to sort symbols that get the same entry number,
2010 and make sure the automatically generated functions ERR_load_*
2011 become part of libeay.num as well.
2014 *) New function SSL_renegotiate_pending(). This returns true once
2015 renegotiation has been requested (either SSL_renegotiate() call
2016 or HelloRequest/ClientHello receveived from the peer) and becomes
2017 false once a handshake has been completed.
2018 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2019 sends a HelloRequest, but does not ensure that a handshake takes
2020 place. SSL_renegotiate_pending() is useful for checking if the
2021 client has followed the request.)
2024 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2025 By default, clients may request session resumption even during
2026 renegotiation (if session ID contexts permit); with this option,
2027 session resumption is possible only in the first handshake.
2029 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2030 more bits available for options that should not be part of
2031 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2034 *) Add some demos for certificate and certificate request creation.
2037 *) Make maximum certificate chain size accepted from the peer application
2038 settable (SSL*_get/set_max_cert_list()), as proposed by
2039 "Douglas E. Engert" <deengert@anl.gov>.
2042 *) Add support for shared libraries for Unixware-7
2043 (Boyd Lynn Gerber <gerberb@zenez.com>).
2046 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2047 be done prior to destruction. Use this to unload error strings from
2048 ENGINEs that load their own error strings. NB: This adds two new API
2049 functions to "get" and "set" this destroy handler in an ENGINE.
2052 *) Alter all existing ENGINE implementations (except "openssl" and
2053 "openbsd") to dynamically instantiate their own error strings. This
2054 makes them more flexible to be built both as statically-linked ENGINEs
2055 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2056 Also, add stub code to each that makes building them as self-contained
2057 shared-libraries easier (see README.ENGINE).
2060 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2061 implementations into applications that are completely implemented in
2062 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2063 commands that can be used to configure what shared-library to load and
2064 to control aspects of the way it is handled. Also, made an update to
2065 the README.ENGINE file that brings its information up-to-date and
2066 provides some information and instructions on the "dynamic" ENGINE
2067 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2070 *) Make it possible to unload ranges of ERR strings with a new
2071 "ERR_unload_strings" function.
2074 *) Add a copy() function to EVP_MD.
2077 *) Make EVP_MD routines take a context pointer instead of just the
2078 md_data void pointer.
2081 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2082 that the digest can only process a single chunk of data
2083 (typically because it is provided by a piece of
2084 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2085 is only going to provide a single chunk of data, and hence the
2086 framework needn't accumulate the data for oneshot drivers.
2089 *) As with "ERR", make it possible to replace the underlying "ex_data"
2090 functions. This change also alters the storage and management of global
2091 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2092 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2093 index counters. The API functions that use this state have been changed
2094 to take a "class_index" rather than pointers to the class's local STACK
2095 and counter, and there is now an API function to dynamically create new
2096 classes. This centralisation allows us to (a) plug a lot of the
2097 thread-safety problems that existed, and (b) makes it possible to clean
2098 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2099 such data would previously have always leaked in application code and
2100 workarounds were in place to make the memory debugging turn a blind eye
2101 to it. Application code that doesn't use this new function will still
2102 leak as before, but their memory debugging output will announce it now
2103 rather than letting it slide.
2105 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2106 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2107 has a return value to indicate success or failure.
2110 *) Make it possible to replace the underlying "ERR" functions such that the
2111 global state (2 LHASH tables and 2 locks) is only used by the "default"
2112 implementation. This change also adds two functions to "get" and "set"
2113 the implementation prior to it being automatically set the first time
2114 any other ERR function takes place. Ie. an application can call "get",
2115 pass the return value to a module it has just loaded, and that module
2116 can call its own "set" function using that value. This means the
2117 module's "ERR" operations will use (and modify) the error state in the
2118 application and not in its own statically linked copy of OpenSSL code.
2121 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2122 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2123 the operation, and provides a more encapsulated way for external code
2124 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2125 to use these functions rather than manually incrementing the counts.
2127 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2130 *) Add EVP test program.
2133 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2136 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2137 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2138 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2139 These allow a CRL to be built without having to access X509_CRL fields
2140 directly. Modify 'ca' application to use new functions.
2143 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2144 bug workarounds. Rollback attack detection is a security feature.
2145 The problem will only arise on OpenSSL servers when TLSv1 is not
2146 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2147 Software authors not wanting to support TLSv1 will have special reasons
2148 for their choice and can explicitly enable this option.
2149 [Bodo Moeller, Lutz Jaenicke]
2151 *) Rationalise EVP so it can be extended: don't include a union of
2152 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2153 (similar to those existing for EVP_CIPHER_CTX).
2158 EVP_MD_CTX_init(&md); /* new function call */
2159 EVP_DigestInit(&md, EVP_sha1());
2160 EVP_DigestUpdate(&md, in, len);
2161 EVP_DigestFinal(&md, out, NULL);
2162 EVP_MD_CTX_cleanup(&md); /* new function call */
2166 *) Make DES key schedule conform to the usual scheme, as well as
2167 correcting its structure. This means that calls to DES functions
2168 now have to pass a pointer to a des_key_schedule instead of a
2169 plain des_key_schedule (which was actually always a pointer
2172 des_key_schedule ks;
2174 des_set_key_checked(..., &ks);
2175 des_ncbc_encrypt(..., &ks, ...);
2177 (Note that a later change renames 'des_...' into 'DES_...'.)
2180 *) Initial reduction of linker bloat: the use of some functions, such as
2181 PEM causes large amounts of unused functions to be linked in due to
2182 poor organisation. For example pem_all.c contains every PEM function
2183 which has a knock on effect of linking in large amounts of (unused)
2184 ASN1 code. Grouping together similar functions and splitting unrelated
2185 functions prevents this.
2188 *) Cleanup of EVP macros.
2191 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2192 correct _ecb suffix.
2195 *) Add initial OCSP responder support to ocsp application. The
2196 revocation information is handled using the text based index
2197 use by the ca application. The responder can either handle
2198 requests generated internally, supplied in files (for example
2199 via a CGI script) or using an internal minimal server.
2202 *) Add configuration choices to get zlib compression for TLS.
2205 *) Changes to Kerberos SSL for RFC 2712 compliance:
2206 1. Implemented real KerberosWrapper, instead of just using
2207 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2208 2. Implemented optional authenticator field of KerberosWrapper.
2210 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2211 and authenticator structs; see crypto/krb5/.
2213 Generalized Kerberos calls to support multiple Kerberos libraries.
2214 [Vern Staats <staatsvr@asc.hpc.mil>,
2215 Jeffrey Altman <jaltman@columbia.edu>
2216 via Richard Levitte]
2218 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2219 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2220 values for each of the key sizes rather than having just
2221 parameters (and 'speed' generating keys each time).
2224 *) Speed up EVP routines.
2227 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2228 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2229 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2230 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2232 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2233 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2234 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2237 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2239 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2242 *) Added the OS2-EMX target.
2243 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2245 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2246 to support NCONF routines in extension code. New function CONF_set_nconf()
2247 to allow functions which take an NCONF to also handle the old LHASH
2248 structure: this means that the old CONF compatible routines can be
2249 retained (in particular wrt extensions) without having to duplicate the
2250 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2253 *) Enhance the general user interface with mechanisms for inner control
2254 and with possibilities to have yes/no kind of prompts.
2257 *) Change all calls to low level digest routines in the library and
2258 applications to use EVP. Add missing calls to HMAC_cleanup() and
2259 don't assume HMAC_CTX can be copied using memcpy().
2260 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2262 *) Add the possibility to control engines through control names but with
2263 arbitrary arguments instead of just a string.
2264 Change the key loaders to take a UI_METHOD instead of a callback
2265 function pointer. NOTE: this breaks binary compatibility with earlier
2266 versions of OpenSSL [engine].
2267 Adapt the nCipher code for these new conditions and add a card insertion
2271 *) Enhance the general user interface with mechanisms to better support
2272 dialog box interfaces, application-defined prompts, the possibility
2273 to use defaults (for example default passwords from somewhere else)
2274 and interrupts/cancellations.
2277 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2278 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2281 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2282 tidy up some unnecessarily weird code in 'sk_new()').
2283 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2285 *) Change the key loading routines for ENGINEs to use the same kind
2286 callback (pem_password_cb) as all other routines that need this
2290 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2291 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2292 than this minimum value is recommended.
2295 *) New random seeder for OpenVMS, using the system process statistics
2296 that are easily reachable.
2299 *) Windows apparently can't transparently handle global
2300 variables defined in DLLs. Initialisations such as:
2302 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2304 wont compile. This is used by the any applications that need to
2305 declare their own ASN1 modules. This was fixed by adding the option
2306 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2307 needed for static libraries under Win32.
2310 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2311 setting of purpose and trust fields. New X509_STORE trust and
2312 purpose functions and tidy up setting in other SSL functions.
2315 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2316 structure. These are inherited by X509_STORE_CTX when it is
2317 initialised. This allows various defaults to be set in the
2318 X509_STORE structure (such as flags for CRL checking and custom
2319 purpose or trust settings) for functions which only use X509_STORE_CTX
2320 internally such as S/MIME.
2322 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2323 trust settings if they are not set in X509_STORE. This allows X509_STORE
2324 purposes and trust (in S/MIME for example) to override any set by default.
2326 Add command line options for CRL checking to smime, s_client and s_server
2330 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2331 are set then the CRL is looked up in the X509_STORE structure and
2332 its validity and signature checked, then if the certificate is found
2333 in the CRL the verify fails with a revoked error.
2335 Various new CRL related callbacks added to X509_STORE_CTX structure.
2337 Command line options added to 'verify' application to support this.
2339 This needs some additional work, such as being able to handle multiple
2340 CRLs with different times, extension based lookup (rather than just
2341 by subject name) and ultimately more complete V2 CRL extension
2345 *) Add a general user interface API (crypto/ui/). This is designed
2346 to replace things like des_read_password and friends (backward
2347 compatibility functions using this new API are provided).
2348 The purpose is to remove prompting functions from the DES code
2349 section as well as provide for prompting through dialog boxes in
2350 a window system and the like.
2353 *) Add "ex_data" support to ENGINE so implementations can add state at a
2354 per-structure level rather than having to store it globally.
2357 *) Make it possible for ENGINE structures to be copied when retrieved by
2358 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2359 This causes the "original" ENGINE structure to act like a template,
2360 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2361 operational state can be localised to each ENGINE structure, despite the
2362 fact they all share the same "methods". New ENGINE structures returned in
2363 this case have no functional references and the return value is the single
2364 structural reference. This matches the single structural reference returned
2365 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2369 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2370 needs to match any other type at all we need to manually clear the
2374 *) Changes to the "openssl engine" utility to include;
2375 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2376 about an ENGINE's available control commands.
2377 - executing control commands from command line arguments using the
2378 '-pre' and '-post' switches. '-post' is only used if '-t' is
2379 specified and the ENGINE is successfully initialised. The syntax for
2380 the individual commands are colon-separated, for example;
2381 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2384 *) New dynamic control command support for ENGINEs. ENGINEs can now
2385 declare their own commands (numbers), names (strings), descriptions,
2386 and input types for run-time discovery by calling applications. A
2387 subset of these commands are implicitly classed as "executable"
2388 depending on their input type, and only these can be invoked through
2389 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2390 can be based on user input, config files, etc). The distinction is
2391 that "executable" commands cannot return anything other than a boolean
2392 result and can only support numeric or string input, whereas some
2393 discoverable commands may only be for direct use through
2394 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2395 pointers, or other custom uses. The "executable" commands are to
2396 support parameterisations of ENGINE behaviour that can be
2397 unambiguously defined by ENGINEs and used consistently across any
2398 OpenSSL-based application. Commands have been added to all the
2399 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2400 control over shared-library paths without source code alterations.
2403 *) Changed all ENGINE implementations to dynamically allocate their
2404 ENGINEs rather than declaring them statically. Apart from this being
2405 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2406 this also allows the implementations to compile without using the
2407 internal engine_int.h header.
2410 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2411 'const' value. Any code that should be able to modify a RAND_METHOD
2412 should already have non-const pointers to it (ie. they should only
2413 modify their own ones).
2416 *) Made a variety of little tweaks to the ENGINE code.
2417 - "atalla" and "ubsec" string definitions were moved from header files
2418 to C code. "nuron" string definitions were placed in variables
2419 rather than hard-coded - allowing parameterisation of these values
2420 later on via ctrl() commands.
2421 - Removed unused "#if 0"'d code.
2422 - Fixed engine list iteration code so it uses ENGINE_free() to release
2423 structural references.
2424 - Constified the RAND_METHOD element of ENGINE structures.
2425 - Constified various get/set functions as appropriate and added
2426 missing functions (including a catch-all ENGINE_cpy that duplicates
2427 all ENGINE values onto a new ENGINE except reference counts/state).
2428 - Removed NULL parameter checks in get/set functions. Setting a method
2429 or function to NULL is a way of cancelling out a previously set
2430 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2431 and doesn't justify the extra error symbols and code.
2432 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2433 flags from engine_int.h to engine.h.
2434 - Changed prototypes for ENGINE handler functions (init(), finish(),
2435 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2438 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2439 to the algorithm using long division. The binary algorithm can be
2440 used only if the modulus is odd. On 32-bit systems, it is faster
2441 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2442 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2443 up to 450 bits. In 64-bit environments, the binary algorithm
2444 appears to be advantageous for much longer moduli; here we use it
2445 for moduli up to 2048 bits.
2448 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2449 could not support the combine flag in choice fields.
2452 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2453 extensions from a certificate request to the certificate.
2456 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2457 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2458 file: this allows the display of the certificate about to be
2459 signed to be customised, to allow certain fields to be included
2460 or excluded and extension details. The old system didn't display
2461 multicharacter strings properly, omitted fields not in the policy
2462 and couldn't display additional details such as extensions.
2465 *) Function EC_POINTs_mul for multiple scalar multiplication
2466 of an arbitrary number of elliptic curve points
2467 \sum scalars[i]*points[i],
2468 optionally including the generator defined for the EC_GROUP:
2469 scalar*generator + \sum scalars[i]*points[i].
2471 EC_POINT_mul is a simple wrapper function for the typical case
2472 that the point list has just one item (besides the optional
2476 *) First EC_METHODs for curves over GF(p):
2478 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2479 operations and provides various method functions that can also
2480 operate with faster implementations of modular arithmetic.
2482 EC_GFp_mont_method() reuses most functions that are part of
2483 EC_GFp_simple_method, but uses Montgomery arithmetic.
2485 [Bodo Moeller; point addition and point doubling
2486 implementation directly derived from source code provided by
2487 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2489 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2490 crypto/ec/ec_lib.c):
2492 Curves are EC_GROUP objects (with an optional group generator)
2493 based on EC_METHODs that are built into the library.
2495 Points are EC_POINT objects based on EC_GROUP objects.
2497 Most of the framework would be able to handle curves over arbitrary
2498 finite fields, but as there are no obvious types for fields other
2499 than GF(p), some functions are limited to that for now.
2502 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2503 that the file contains a complete HTTP response.
2506 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2507 change the def and num file printf format specifier from "%-40sXXX"
2508 to "%-39s XXX". The latter will always guarantee a space after the
2509 field while the former will cause them to run together if the field
2510 is 40 of more characters long.
2513 *) Constify the cipher and digest 'method' functions and structures
2514 and modify related functions to take constant EVP_MD and EVP_CIPHER
2518 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2519 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2522 *) Modify EVP_Digest*() routines so they now return values. Although the
2523 internal software routines can never fail additional hardware versions
2527 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2529 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2530 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2533 ERR_R_NESTED_ASN1_ERROR
2535 ERR_R_MISSING_ASN1_EOS
2536 were 4 .. 9, conflicting with
2537 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2539 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2540 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2542 Add new error code 'ERR_R_INTERNAL_ERROR'.
2545 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2549 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2550 sets the subject name for a new request or supersedes the
2551 subject name in a given request. Formats that can be parsed are
2552 'CN=Some Name, OU=myOU, C=IT'
2554 'CN=Some Name/OU=myOU/C=IT'.
2556 Add options '-batch' and '-verbose' to 'openssl req'.
2557 [Massimiliano Pala <madwolf@hackmasters.net>]
2559 *) Introduce the possibility to access global variables through
2560 functions on platform were that's the best way to handle exporting
2561 global variables in shared libraries. To enable this functionality,
2562 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2563 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2564 is normally done by Configure or something similar).
2566 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2567 in the source file (foo.c) like this:
2569 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2570 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2572 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2573 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2575 OPENSSL_DECLARE_GLOBAL(int,foo);
2576 #define foo OPENSSL_GLOBAL_REF(foo)
2577 OPENSSL_DECLARE_GLOBAL(double,bar);
2578 #define bar OPENSSL_GLOBAL_REF(bar)
2580 The #defines are very important, and therefore so is including the
2581 header file everywhere where the defined globals are used.
2583 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2584 of ASN.1 items, but that structure is a bit different.
2586 The largest change is in util/mkdef.pl which has been enhanced with
2587 better and easier to understand logic to choose which symbols should
2588 go into the Windows .def files as well as a number of fixes and code
2589 cleanup (among others, algorithm keywords are now sorted
2590 lexicographically to avoid constant rewrites).
2593 *) In BN_div() keep a copy of the sign of 'num' before writing the
2594 result to 'rm' because if rm==num the value will be overwritten
2595 and produce the wrong result if 'num' is negative: this caused
2596 problems with BN_mod() and BN_nnmod().
2599 *) Function OCSP_request_verify(). This checks the signature on an
2600 OCSP request and verifies the signer certificate. The signer
2601 certificate is just checked for a generic purpose and OCSP request
2605 *) Add OCSP_check_validity() function to check the validity of OCSP
2606 responses. OCSP responses are prepared in real time and may only
2607 be a few seconds old. Simply checking that the current time lies
2608 between thisUpdate and nextUpdate max reject otherwise valid responses
2609 caused by either OCSP responder or client clock inaccuracy. Instead
2610 we allow thisUpdate and nextUpdate to fall within a certain period of
2611 the current time. The age of the response can also optionally be
2612 checked. Two new options -validity_period and -status_age added to
2616 *) If signature or public key algorithm is unrecognized print out its
2617 OID rather that just UNKNOWN.
2620 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2621 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2622 ID to be generated from the issuer certificate alone which can then be
2623 passed to OCSP_id_issuer_cmp().
2626 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
2627 ASN1 modules to export functions returning ASN1_ITEM pointers
2628 instead of the ASN1_ITEM structures themselves. This adds several
2629 new macros which allow the underlying ASN1 function/structure to
2630 be accessed transparently. As a result code should not use ASN1_ITEM
2631 references directly (such as &X509_it) but instead use the relevant
2632 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
2633 use of the new ASN1 code on platforms where exporting structures
2634 is problematical (for example in shared libraries) but exporting
2635 functions returning pointers to structures is not.
2638 *) Add support for overriding the generation of SSL/TLS session IDs.
2639 These callbacks can be registered either in an SSL_CTX or per SSL.
2640 The purpose of this is to allow applications to control, if they wish,
2641 the arbitrary values chosen for use as session IDs, particularly as it
2642 can be useful for session caching in multiple-server environments. A
2643 command-line switch for testing this (and any client code that wishes
2644 to use such a feature) has been added to "s_server".
2645 [Geoff Thorpe, Lutz Jaenicke]
2647 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
2648 of the form '#if defined(...) || defined(...) || ...' and
2649 '#if !defined(...) && !defined(...) && ...'. This also avoids
2650 the growing number of special cases it was previously handling.
2653 *) Make all configuration macros available for application by making
2654 sure they are available in opensslconf.h, by giving them names starting
2655 with "OPENSSL_" to avoid conflicts with other packages and by making
2656 sure e_os2.h will cover all platform-specific cases together with
2658 Additionally, it is now possible to define configuration/platform-
2659 specific names (called "system identities"). In the C code, these
2660 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
2661 macro with the name beginning with "OPENSSL_SYS_", which is determined
2662 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
2666 *) New option -set_serial to 'req' and 'x509' this allows the serial
2667 number to use to be specified on the command line. Previously self
2668 signed certificates were hard coded with serial number 0 and the
2669 CA options of 'x509' had to use a serial number in a file which was
2673 *) New options to 'ca' utility to support V2 CRL entry extensions.
2674 Currently CRL reason, invalidity date and hold instruction are
2675 supported. Add new CRL extensions to V3 code and some new objects.
2678 *) New function EVP_CIPHER_CTX_set_padding() this is used to
2679 disable standard block padding (aka PKCS#5 padding) in the EVP
2680 API, which was previously mandatory. This means that the data is
2681 not padded in any way and so the total length much be a multiple
2682 of the block size, otherwise an error occurs.
2685 *) Initial (incomplete) OCSP SSL support.
2688 *) New function OCSP_parse_url(). This splits up a URL into its host,
2689 port and path components: primarily to parse OCSP URLs. New -url
2690 option to ocsp utility.
2693 *) New nonce behavior. The return value of OCSP_check_nonce() now
2694 reflects the various checks performed. Applications can decide
2695 whether to tolerate certain situations such as an absent nonce
2696 in a response when one was present in a request: the ocsp application
2697 just prints out a warning. New function OCSP_add1_basic_nonce()
2698 this is to allow responders to include a nonce in a response even if
2699 the request is nonce-less.
2702 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
2703 skipped when using openssl x509 multiple times on a single input file,
2704 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
2707 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
2708 set string type: to handle setting ASN1_TIME structures. Fix ca
2709 utility to correctly initialize revocation date of CRLs.
2712 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
2713 the clients preferred ciphersuites and rather use its own preferences.
2714 Should help to work around M$ SGC (Server Gated Cryptography) bug in
2715 Internet Explorer by ensuring unchanged hash method during stepup.
2716 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
2719 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
2720 to aes and add a new 'exist' option to print out symbols that don't
2724 *) Additional options to ocsp utility to allow flags to be set and
2725 additional certificates supplied.
2728 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
2729 OCSP client a number of certificate to only verify the response
2733 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
2734 handle the new API. Currently only ECB, CBC modes supported. Add new
2737 Add TLS AES ciphersuites as described in RFC3268, "Advanced
2738 Encryption Standard (AES) Ciphersuites for Transport Layer
2739 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
2740 not enabled by default and were not part of the "ALL" ciphersuite
2741 alias because they were not yet official; they could be
2742 explicitly requested by specifying the "AESdraft" ciphersuite
2743 group alias. In the final release of OpenSSL 0.9.7, the group
2744 alias is called "AES" and is part of "ALL".)
2745 [Ben Laurie, Steve Henson, Bodo Moeller]
2747 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
2748 request to response.
2751 *) Functions for OCSP responders. OCSP_request_onereq_count(),
2752 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
2753 extract information from a certificate request. OCSP_response_create()
2754 creates a response and optionally adds a basic response structure.
2755 OCSP_basic_add1_status() adds a complete single response to a basic
2756 response and returns the OCSP_SINGLERESP structure just added (to allow
2757 extensions to be included for example). OCSP_basic_add1_cert() adds a
2758 certificate to a basic response and OCSP_basic_sign() signs a basic
2759 response with various flags. New helper functions ASN1_TIME_check()
2760 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
2761 (converts ASN1_TIME to GeneralizedTime).
2764 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
2765 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
2766 structure from a certificate. X509_pubkey_digest() digests the public_key
2767 contents: this is used in various key identifiers.
2770 *) Make sk_sort() tolerate a NULL argument.
2771 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
2773 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
2774 passed by the function are trusted implicitly. If any of them signed the
2775 response then it is assumed to be valid and is not verified.
2778 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
2779 to data. This was previously part of the PKCS7 ASN1 code. This
2780 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
2781 [Steve Henson, reported by Kenneth R. Robinette
2782 <support@securenetterm.com>]
2784 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
2785 routines: without these tracing memory leaks is very painful.
2786 Fix leaks in PKCS12 and PKCS7 routines.
2789 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
2790 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
2791 effectively meant GeneralizedTime would never be used. Now it
2792 is initialised to -1 but X509_time_adj() now has to check the value
2793 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
2794 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
2795 [Steve Henson, reported by Kenneth R. Robinette
2796 <support@securenetterm.com>]
2798 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
2799 result in a zero length in the ASN1_INTEGER structure which was
2800 not consistent with the structure when d2i_ASN1_INTEGER() was used
2801 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
2802 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
2803 where it did not print out a minus for negative ASN1_INTEGER.
2806 *) Add summary printout to ocsp utility. The various functions which
2807 convert status values to strings have been renamed to:
2808 OCSP_response_status_str(), OCSP_cert_status_str() and
2809 OCSP_crl_reason_str() and are no longer static. New options
2810 to verify nonce values and to disable verification. OCSP response
2811 printout format cleaned up.
2814 *) Add additional OCSP certificate checks. These are those specified
2815 in RFC2560. This consists of two separate checks: the CA of the
2816 certificate being checked must either be the OCSP signer certificate
2817 or the issuer of the OCSP signer certificate. In the latter case the
2818 OCSP signer certificate must contain the OCSP signing extended key
2819 usage. This check is performed by attempting to match the OCSP
2820 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
2821 in the OCSP_CERTID structures of the response.
2824 *) Initial OCSP certificate verification added to OCSP_basic_verify()
2825 and related routines. This uses the standard OpenSSL certificate
2826 verify routines to perform initial checks (just CA validity) and
2827 to obtain the certificate chain. Then additional checks will be
2828 performed on the chain. Currently the root CA is checked to see
2829 if it is explicitly trusted for OCSP signing. This is used to set
2830 a root CA as a global signing root: that is any certificate that
2831 chains to that CA is an acceptable OCSP signing certificate.
2834 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
2835 extensions from a separate configuration file.
2836 As when reading extensions from the main configuration file,
2837 the '-extensions ...' option may be used for specifying the
2839 [Massimiliano Pala <madwolf@comune.modena.it>]
2841 *) New OCSP utility. Allows OCSP requests to be generated or
2842 read. The request can be sent to a responder and the output
2843 parsed, outputed or printed in text form. Not complete yet:
2844 still needs to check the OCSP response validity.
2847 *) New subcommands for 'openssl ca':
2848 'openssl ca -status <serial>' prints the status of the cert with
2849 the given serial number (according to the index file).
2850 'openssl ca -updatedb' updates the expiry status of certificates
2852 [Massimiliano Pala <madwolf@comune.modena.it>]
2854 *) New '-newreq-nodes' command option to CA.pl. This is like
2855 '-newreq', but calls 'openssl req' with the '-nodes' option
2856 so that the resulting key is not encrypted.
2857 [Damien Miller <djm@mindrot.org>]
2859 *) New configuration for the GNU Hurd.
2860 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
2862 *) Initial code to implement OCSP basic response verify. This
2863 is currently incomplete. Currently just finds the signer's
2864 certificate and verifies the signature on the response.
2867 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
2868 value of OPENSSLDIR. This is available via the new '-d' option
2869 to 'openssl version', and is also included in 'openssl version -a'.
2872 *) Allowing defining memory allocation callbacks that will be given
2873 file name and line number information in additional arguments
2874 (a const char* and an int). The basic functionality remains, as
2875 well as the original possibility to just replace malloc(),
2876 realloc() and free() by functions that do not know about these
2877 additional arguments. To register and find out the current
2878 settings for extended allocation functions, the following
2879 functions are provided:
2881 CRYPTO_set_mem_ex_functions
2882 CRYPTO_set_locked_mem_ex_functions
2883 CRYPTO_get_mem_ex_functions
2884 CRYPTO_get_locked_mem_ex_functions
2886 These work the same way as CRYPTO_set_mem_functions and friends.
2887 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
2888 extended allocation function is enabled.
2889 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
2890 a conventional allocation function is enabled.
2891 [Richard Levitte, Bodo Moeller]
2893 *) Finish off removing the remaining LHASH function pointer casts.
2894 There should no longer be any prototype-casting required when using
2895 the LHASH abstraction, and any casts that remain are "bugs". See
2896 the callback types and macros at the head of lhash.h for details
2897 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
2900 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
2901 If /dev/[u]random devices are not available or do not return enough
2902 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
2904 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
2905 /etc/entropy will be queried once each in this sequence, quering stops
2906 when enough entropy was collected without querying more sockets.
2909 *) Change the Unix RAND_poll() variant to be able to poll several
2910 random devices, as specified by DEVRANDOM, until a sufficient amount
2911 of data has been collected. We spend at most 10 ms on each file
2912 (select timeout) and read in non-blocking mode. DEVRANDOM now
2913 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
2914 (previously it was just the string "/dev/urandom"), so on typical
2915 platforms the 10 ms delay will never occur.
2916 Also separate out the Unix variant to its own file, rand_unix.c.
2917 For VMS, there's a currently-empty rand_vms.c.
2920 *) Move OCSP client related routines to ocsp_cl.c. These
2921 provide utility functions which an application needing
2922 to issue a request to an OCSP responder and analyse the
2923 response will typically need: as opposed to those which an
2924 OCSP responder itself would need which will be added later.
2926 OCSP_request_sign() signs an OCSP request with an API similar
2927 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
2928 response. OCSP_response_get1_basic() extracts basic response
2929 from response. OCSP_resp_find_status(): finds and extracts status
2930 information from an OCSP_CERTID structure (which will be created
2931 when the request structure is built). These are built from lower
2932 level functions which work on OCSP_SINGLERESP structures but
2933 wont normally be used unless the application wishes to examine
2934 extensions in the OCSP response for example.
2936 Replace nonce routines with a pair of functions.
2937 OCSP_request_add1_nonce() adds a nonce value and optionally
2938 generates a random value. OCSP_check_nonce() checks the
2939 validity of the nonce in an OCSP response.
2942 *) Change function OCSP_request_add() to OCSP_request_add0_id().
2943 This doesn't copy the supplied OCSP_CERTID and avoids the
2944 need to free up the newly created id. Change return type
2945 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
2946 This can then be used to add extensions to the request.
2947 Deleted OCSP_request_new(), since most of its functionality
2948 is now in OCSP_REQUEST_new() (and the case insensitive name
2949 clash) apart from the ability to set the request name which
2950 will be added elsewhere.
2953 *) Update OCSP API. Remove obsolete extensions argument from
2954 various functions. Extensions are now handled using the new
2955 OCSP extension code. New simple OCSP HTTP function which
2956 can be used to send requests and parse the response.
2959 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
2960 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
2961 uses the special reorder version of SET OF to sort the attributes
2962 and reorder them to match the encoded order. This resolves a long
2963 standing problem: a verify on a PKCS7 structure just after signing
2964 it used to fail because the attribute order did not match the
2965 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
2966 it uses the received order. This is necessary to tolerate some broken
2967 software that does not order SET OF. This is handled by encoding
2968 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
2969 to produce the required SET OF.
2972 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
2973 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
2974 files to get correct declarations of the ASN.1 item variables.
2977 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
2978 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
2979 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
2980 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
2981 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
2982 ASN1_ITEM and no wrapper functions.
2985 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
2986 replace the old function pointer based I/O routines. Change most of
2987 the *_d2i_bio() and *_d2i_fp() functions to use these.
2990 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
2991 lines, recognice more "algorithms" that can be deselected, and make
2992 it complain about algorithm deselection that isn't recognised.
2995 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
2996 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
2997 to use new functions. Add NO_ASN1_OLD which can be set to remove
2998 some old style ASN1 functions: this can be used to determine if old
2999 code will still work when these eventually go away.
3002 *) New extension functions for OCSP structures, these follow the
3003 same conventions as certificates and CRLs.
3006 *) New function X509V3_add1_i2d(). This automatically encodes and
3007 adds an extension. Its behaviour can be customised with various
3008 flags to append, replace or delete. Various wrappers added for
3009 certifcates and CRLs.
3012 *) Fix to avoid calling the underlying ASN1 print routine when
3013 an extension cannot be parsed. Correct a typo in the
3014 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3017 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3018 entries for variables.
3021 *) Add functionality to apps/openssl.c for detecting locking
3022 problems: As the program is single-threaded, all we have
3023 to do is register a locking callback using an array for
3024 storing which locks are currently held by the program.
3027 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3028 SSL_get_ex_data_X509_STORE_idx(), which is used in
3029 ssl_verify_cert_chain() and thus can be called at any time
3030 during TLS/SSL handshakes so that thread-safety is essential.
3031 Unfortunately, the ex_data design is not at all suited
3032 for multi-threaded use, so it probably should be abolished.
3035 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3036 [Broadcom, tweaked and integrated by Geoff Thorpe]
3038 *) Move common extension printing code to new function
3039 X509V3_print_extensions(). Reorganise OCSP print routines and
3040 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3043 *) New function X509_signature_print() to remove duplication in some
3047 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3048 set (this was treated exactly the same as SET OF previously). This
3049 is used to reorder the STACK representing the structure to match the
3050 encoding. This will be used to get round a problem where a PKCS7
3051 structure which was signed could not be verified because the STACK
3052 order did not reflect the encoded order.
3055 *) Reimplement the OCSP ASN1 module using the new code.
3058 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3059 for its ASN1 operations. The old style function pointers still exist
3060 for now but they will eventually go away.
3063 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3064 completely replaces the old ASN1 functionality with a table driven
3065 encoder and decoder which interprets an ASN1_ITEM structure describing
3066 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3067 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3068 has also been converted to the new form.
3071 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3072 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3073 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3074 for negative moduli.
3077 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3078 of not touching the result's sign bit.
3081 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3085 *) Changed the LHASH code to use prototypes for callbacks, and created
3086 macros to declare and implement thin (optionally static) functions
3087 that provide type-safety and avoid function pointer casting for the
3088 type-specific callbacks.
3091 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3093 [Veers Staats <staatsvr@asc.hpc.mil>,
3094 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3096 *) Reformat the FAQ so the different questions and answers can be divided
3097 in sections depending on the subject.
3100 *) Have the zlib compression code load ZLIB.DLL dynamically under
3104 *) New function BN_mod_sqrt for computing square roots modulo a prime
3105 (using the probabilistic Tonelli-Shanks algorithm unless
3106 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3107 be handled deterministically).
3108 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3110 *) Make BN_mod_inverse faster by explicitly handling small quotients
3111 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3112 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3115 *) New function BN_kronecker.
3118 *) Fix BN_gcd so that it works on negative inputs; the result is
3119 positive unless both parameters are zero.
3120 Previously something reasonably close to an infinite loop was
3121 possible because numbers could be growing instead of shrinking
3122 in the implementation of Euclid's algorithm.
3125 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3126 sign of the number in question.
3128 Fix BN_is_word(a,w) to work correctly for w == 0.
3130 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3131 because its test if the absolute value of 'a' equals 'w'.
3132 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3133 it exists mostly for use in the implementations of BN_is_zero(),
3134 BN_is_one(), and BN_is_word().
3137 *) New function BN_swap.
3140 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3141 the exponentiation functions are more likely to produce reasonable
3142 results on negative inputs.
3145 *) Change BN_mod_mul so that the result is always non-negative.
3146 Previously, it could be negative if one of the factors was negative;
3147 I don't think anyone really wanted that behaviour.
3150 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3151 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3152 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3153 and add new functions:
3162 BN_mod_lshift1_quick
3166 These functions always generate non-negative results.
3168 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3169 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3171 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3172 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3173 be reduced modulo m.
3174 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3177 The following entry accidentily appeared in the CHANGES file
3178 distributed with OpenSSL 0.9.7. The modifications described in
3179 it do *not* apply to OpenSSL 0.9.7.
3181 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3182 was actually never needed) and in BN_mul(). The removal in BN_mul()
3183 required a small change in bn_mul_part_recursive() and the addition
3184 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3185 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3186 bn_sub_words() and bn_add_words() except they take arrays with
3191 *) In 'openssl passwd', verify passwords read from the terminal
3192 unless the '-salt' option is used (which usually means that
3193 verification would just waste user's time since the resulting
3194 hash is going to be compared with some given password hash)
3195 or the new '-noverify' option is used.
3197 This is an incompatible change, but it does not affect
3198 non-interactive use of 'openssl passwd' (passwords on the command
3199 line, '-stdin' option, '-in ...' option) and thus should not
3203 *) Remove all references to RSAref, since there's no more need for it.
3206 *) Make DSO load along a path given through an environment variable
3207 (SHLIB_PATH) with shl_load().
3210 *) Constify the ENGINE code as a result of BIGNUM constification.
3211 Also constify the RSA code and most things related to it. In a
3212 few places, most notable in the depth of the ASN.1 code, ugly
3213 casts back to non-const were required (to be solved at a later
3217 *) Make it so the openssl application has all engines loaded by default.
3220 *) Constify the BIGNUM routines a little more.
3223 *) Add the following functions:
3225 ENGINE_load_cswift()
3227 ENGINE_load_atalla()
3229 ENGINE_load_builtin_engines()
3231 That way, an application can itself choose if external engines that
3232 are built-in in OpenSSL shall ever be used or not. The benefit is
3233 that applications won't have to be linked with libdl or other dso
3234 libraries unless it's really needed.
3236 Changed 'openssl engine' to load all engines on demand.
3237 Changed the engine header files to avoid the duplication of some
3238 declarations (they differed!).
3241 *) 'openssl engine' can now list capabilities.
3244 *) Better error reporting in 'openssl engine'.
3247 *) Never call load_dh_param(NULL) in s_server.
3250 *) Add engine application. It can currently list engines by name and
3251 identity, and test if they are actually available.
3254 *) Improve RPM specification file by forcing symbolic linking and making
3255 sure the installed documentation is also owned by root.root.
3256 [Damien Miller <djm@mindrot.org>]
3258 *) Give the OpenSSL applications more possibilities to make use of
3259 keys (public as well as private) handled by engines.
3262 *) Add OCSP code that comes from CertCo.
3265 *) Add VMS support for the Rijndael code.
3268 *) Added untested support for Nuron crypto accelerator.
3271 *) Add support for external cryptographic devices. This code was
3272 previously distributed separately as the "engine" branch.
3273 [Geoff Thorpe, Richard Levitte]
3275 *) Rework the filename-translation in the DSO code. It is now possible to
3276 have far greater control over how a "name" is turned into a filename
3277 depending on the operating environment and any oddities about the
3278 different shared library filenames on each system.
3281 *) Support threads on FreeBSD-elf in Configure.
3284 *) Fix for SHA1 assembly problem with MASM: it produces
3285 warnings about corrupt line number information when assembling
3286 with debugging information. This is caused by the overlapping
3288 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3291 NCONF_get_number() has no error checking at all. As a replacement,
3292 NCONF_get_number_e() is defined (_e for "error checking") and is
3293 promoted strongly. The old NCONF_get_number is kept around for
3294 binary backward compatibility.
3295 Make it possible for methods to load from something other than a BIO,
3296 by providing a function pointer that is given a name instead of a BIO.
3297 For example, this could be used to load configuration data from an
3301 *) Fix for non blocking accept BIOs. Added new I/O special reason
3302 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3303 with non blocking I/O was not possible because no retry code was
3304 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3308 *) Added the beginnings of Rijndael support.
3311 *) Fix for bug in DirectoryString mask setting. Add support for
3312 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3313 to allow certificate printing to more controllable, additional
3314 'certopt' option to 'x509' to allow new printing options to be
3318 *) Clean old EAY MD5 hack from e_os.h.
3321 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3323 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3324 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3325 [Joe Orton, Steve Henson]
3327 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3329 *) Fix additional bug revealed by the NISCC test suite:
3331 Stop bug triggering large recursion when presented with
3332 certain ASN.1 tags (CVE-2003-0851)
3335 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3337 *) Fix various bugs revealed by running the NISCC test suite:
3339 Stop out of bounds reads in the ASN1 code when presented with
3340 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3342 If verify callback ignores invalid public key errors don't try to check
3343 certificate signature with the NULL public key.
3347 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3348 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3352 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3353 extra data after the compression methods not only for TLS 1.0
3354 but also for SSL 3.0 (as required by the specification).
3355 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3357 *) Change X509_certificate_type() to mark the key as exported/exportable
3358 when it's 512 *bits* long, not 512 bytes.
3361 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3363 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3364 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3365 a protocol version number mismatch like a decryption error
3366 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3369 *) Turn on RSA blinding by default in the default implementation
3370 to avoid a timing attack. Applications that don't want it can call
3371 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3372 They would be ill-advised to do so in most cases.
3373 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3375 *) Change RSA blinding code so that it works when the PRNG is not
3376 seeded (in this case, the secret RSA exponent is abused as
3377 an unpredictable seed -- if it is not unpredictable, there
3378 is no point in blinding anyway). Make RSA blinding thread-safe
3379 by remembering the creator's thread ID in rsa->blinding and
3380 having all other threads use local one-time blinding factors
3381 (this requires more computation than sharing rsa->blinding, but
3382 avoids excessive locking; and if an RSA object is not shared
3383 between threads, blinding will still be very fast).
3386 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3388 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3389 via timing by performing a MAC computation even if incorrrect
3390 block cipher padding has been found. This is a countermeasure
3391 against active attacks where the attacker has to distinguish
3392 between bad padding and a MAC verification error. (CVE-2003-0078)
3394 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3395 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3396 Martin Vuagnoux (EPFL, Ilion)]
3398 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3400 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3401 memory from it's contents. This is done with a counter that will
3402 place alternating values in each byte. This can be used to solve
3403 two issues: 1) the removal of calls to memset() by highly optimizing
3404 compilers, and 2) cleansing with other values than 0, since those can
3405 be read through on certain media, for example a swap space on disk.
3408 *) Bugfix: client side session caching did not work with external caching,
3409 because the session->cipher setting was not restored when reloading
3410 from the external cache. This problem was masked, when
3411 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3412 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3415 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3416 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3417 [Zeev Lieber <zeev-l@yahoo.com>]
3419 *) Undo an undocumented change introduced in 0.9.6e which caused
3420 repeated calls to OpenSSL_add_all_ciphers() and
3421 OpenSSL_add_all_digests() to be ignored, even after calling
3425 *) Change the default configuration reader to deal with last line not
3426 being properly terminated.
3429 *) Change X509_NAME_cmp() so it applies the special rules on handling
3430 DN values that are of type PrintableString, as well as RDNs of type
3431 emailAddress where the value has the type ia5String.
3432 [stefank@valicert.com via Richard Levitte]
3434 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3435 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3436 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3437 the bitwise-OR of the two for use by the majority of applications
3438 wanting this behaviour, and update the docs. The documented
3439 behaviour and actual behaviour were inconsistent and had been
3440 changing anyway, so this is more a bug-fix than a behavioural
3442 [Geoff Thorpe, diagnosed by Nadav Har'El]
3444 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3445 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3448 *) Fix initialization code race conditions in
3449 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3450 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3451 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3452 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3453 ssl2_get_cipher_by_char(),
3454 ssl3_get_cipher_by_char().
3455 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3457 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3458 the cached sessions are flushed, as the remove_cb() might use ex_data
3459 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3460 (see [openssl.org #212]).
3461 [Geoff Thorpe, Lutz Jaenicke]
3463 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3464 length, instead of the encoding length to d2i_ASN1_OBJECT.
3467 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3469 *) [In 0.9.6g-engine release:]
3470 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3471 [Lynn Gazis <lgazis@rainbow.com>]
3473 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3475 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3476 and get fix the header length calculation.
3477 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3478 Alon Kantor <alonk@checkpoint.com> (and others),
3481 *) Use proper error handling instead of 'assertions' in buffer
3482 overflow checks added in 0.9.6e. This prevents DoS (the
3483 assertions could call abort()).
3484 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3486 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3488 *) Add various sanity checks to asn1_get_length() to reject
3489 the ASN1 length bytes if they exceed sizeof(long), will appear
3490 negative or the content length exceeds the length of the
3492 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3494 *) Fix cipher selection routines: ciphers without encryption had no flags
3495 for the cipher strength set and where therefore not handled correctly
3496 by the selection routines (PR #130).
3499 *) Fix EVP_dsa_sha macro.
3503 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3504 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3505 that was added in OpenSSL 0.9.6d.
3507 As the countermeasure turned out to be incompatible with some
3508 broken SSL implementations, the new option is part of SSL_OP_ALL.
3509 SSL_OP_ALL is usually employed when compatibility with weird SSL
3510 implementations is desired (e.g. '-bugs' option to 's_client' and
3511 's_server'), so the new option is automatically set in many
3515 *) Changes in security patch:
3517 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3518 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3519 Air Force Materiel Command, USAF, under agreement number
3522 *) Add various sanity checks to asn1_get_length() to reject
3523 the ASN1 length bytes if they exceed sizeof(long), will appear
3524 negative or the content length exceeds the length of the
3525 supplied buffer. (CVE-2002-0659)
3526 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3528 *) Assertions for various potential buffer overflows, not known to
3530 [Ben Laurie (CHATS)]
3532 *) Various temporary buffers to hold ASCII versions of integers were
3533 too small for 64 bit platforms. (CVE-2002-0655)
3534 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3536 *) Remote buffer overflow in SSL3 protocol - an attacker could
3537 supply an oversized session ID to a client. (CVE-2002-0656)
3538 [Ben Laurie (CHATS)]
3540 *) Remote buffer overflow in SSL2 protocol - an attacker could
3541 supply an oversized client master key. (CVE-2002-0656)
3542 [Ben Laurie (CHATS)]
3544 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3546 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3547 encoded as NULL) with id-dsa-with-sha1.
3548 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3550 *) Check various X509_...() return values in apps/req.c.
3551 [Nils Larsch <nla@trustcenter.de>]
3553 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3554 an end-of-file condition would erronously be flagged, when the CRLF
3555 was just at the end of a processed block. The bug was discovered when
3556 processing data through a buffering memory BIO handing the data to a
3557 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3558 <ptsekov@syntrex.com> and Nedelcho Stanev.
3561 *) Implement a countermeasure against a vulnerability recently found
3562 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3563 before application data chunks to avoid the use of known IVs
3564 with data potentially chosen by the attacker.
3567 *) Fix length checks in ssl3_get_client_hello().
3570 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3571 to prevent ssl3_read_internal() from incorrectly assuming that
3572 ssl3_read_bytes() found application data while handshake
3573 processing was enabled when in fact s->s3->in_read_app_data was
3574 merely automatically cleared during the initial handshake.
3575 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3577 *) Fix object definitions for Private and Enterprise: they were not
3578 recognized in their shortname (=lowercase) representation. Extend
3579 obj_dat.pl to issue an error when using undefined keywords instead
3580 of silently ignoring the problem (Svenning Sorensen
3581 <sss@sss.dnsalias.net>).
3584 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3585 generators, i.e. generators other than 2 and 5. (Previously, the
3586 code did not properly initialise the 'add' and 'rem' values to
3587 BN_generate_prime().)
3589 In the new general case, we do not insist that 'generator' is
3590 actually a primitive root: This requirement is rather pointless;
3591 a generator of the order-q subgroup is just as good, if not
3595 *) Map new X509 verification errors to alerts. Discovered and submitted by
3596 Tom Wu <tom@arcot.com>.
3599 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
3600 returning non-zero before the data has been completely received
3601 when using non-blocking I/O.
3602 [Bodo Moeller; problem pointed out by John Hughes]
3604 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
3605 [Ben Laurie, Lutz Jaenicke]
3607 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
3608 Yoram Zahavi <YoramZ@gilian.com>).
3611 *) Add information about CygWin 1.3 and on, and preserve proper
3612 configuration for the versions before that.
3613 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3615 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
3616 check whether we deal with a copy of a session and do not delete from
3617 the cache in this case. Problem reported by "Izhar Shoshani Levi"
3618 <izhar@checkpoint.com>.
3621 *) Do not store session data into the internal session cache, if it
3622 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
3623 flag is set). Proposed by Aslam <aslam@funk.com>.
3626 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
3630 *) [In 0.9.6d-engine release:]
3631 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3632 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3634 *) Add the configuration target linux-s390x.
3635 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
3637 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
3638 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
3639 variable as an indication that a ClientHello message has been
3640 received. As the flag value will be lost between multiple
3641 invocations of ssl3_accept when using non-blocking I/O, the
3642 function may not be aware that a handshake has actually taken
3643 place, thus preventing a new session from being added to the
3646 To avoid this problem, we now set s->new_session to 2 instead of
3647 using a local variable.
3648 [Lutz Jaenicke, Bodo Moeller]
3650 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
3651 if the SSL_R_LENGTH_MISMATCH error is detected.
3652 [Geoff Thorpe, Bodo Moeller]
3654 *) New 'shared_ldflag' column in Configure platform table.
3657 *) Fix EVP_CIPHER_mode macro.
3658 ["Dan S. Camper" <dan@bti.net>]
3660 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
3661 type, we must throw them away by setting rr->length to 0.
3662 [D P Chang <dpc@qualys.com>]
3664 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
3666 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
3667 <Dominikus.Scherkl@biodata.com>. (The previous implementation
3668 worked incorrectly for those cases where range = 10..._2 and
3669 3*range is two bits longer than range.)
3672 *) Only add signing time to PKCS7 structures if it is not already
3676 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
3677 OBJ_ld_ce should be OBJ_id_ce.
3678 Also some ip-pda OIDs in crypto/objects/objects.txt were
3679 incorrect (cf. RFC 3039).
3680 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
3682 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
3683 returns early because it has nothing to do.
3684 [Andy Schneider <andy.schneider@bjss.co.uk>]
3686 *) [In 0.9.6c-engine release:]
3687 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
3688 [Andy Schneider <andy.schneider@bjss.co.uk>]
3690 *) [In 0.9.6c-engine release:]
3691 Add support for Cryptographic Appliance's keyserver technology.
3692 (Use engine 'keyclient')
3693 [Cryptographic Appliances and Geoff Thorpe]
3695 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
3696 is called via tools/c89.sh because arguments have to be
3697 rearranged (all '-L' options must appear before the first object
3699 [Richard Shapiro <rshapiro@abinitio.com>]
3701 *) [In 0.9.6c-engine release:]
3702 Add support for Broadcom crypto accelerator cards, backported
3704 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
3706 *) [In 0.9.6c-engine release:]
3707 Add support for SureWare crypto accelerator cards from
3708 Baltimore Technologies. (Use engine 'sureware')
3709 [Baltimore Technologies and Mark Cox]
3711 *) [In 0.9.6c-engine release:]
3712 Add support for crypto accelerator cards from Accelerated
3713 Encryption Processing, www.aep.ie. (Use engine 'aep')
3714 [AEP Inc. and Mark Cox]
3716 *) Add a configuration entry for gcc on UnixWare.
3717 [Gary Benson <gbenson@redhat.com>]
3719 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
3720 messages are stored in a single piece (fixed-length part and
3721 variable-length part combined) and fix various bugs found on the way.
3724 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
3725 instead. BIO_gethostbyname() does not know what timeouts are
3726 appropriate, so entries would stay in cache even when they have
3728 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
3730 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
3731 faced with a pathologically small ClientHello fragment that does
3732 not contain client_version: Instead of aborting with an error,
3733 simply choose the highest available protocol version (i.e.,
3734 TLS 1.0 unless it is disabled). In practice, ClientHello
3735 messages are never sent like this, but this change gives us
3736 strictly correct behaviour at least for TLS.
3739 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
3740 never resets s->method to s->ctx->method when called from within
3741 one of the SSL handshake functions.
3742 [Bodo Moeller; problem pointed out by Niko Baric]
3744 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
3745 (sent using the client's version number) if client_version is
3746 smaller than the protocol version in use. Also change
3747 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
3748 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
3749 the client will at least see that alert.
3752 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
3756 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
3757 client receives HelloRequest while in a handshake.
3758 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
3760 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
3761 should end in 'break', not 'goto end' which circuments various
3762 cleanups done in state SSL_ST_OK. But session related stuff
3763 must be disabled for SSL_ST_OK in the case that we just sent a
3766 Also avoid some overhead by not calling ssl_init_wbio_buffer()
3767 before just sending a HelloRequest.
3768 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
3770 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
3771 reveal whether illegal block cipher padding was found or a MAC
3772 verification error occured. (Neither SSLerr() codes nor alerts
3773 are directly visible to potential attackers, but the information
3774 may leak via logfiles.)
3776 Similar changes are not required for the SSL 2.0 implementation
3777 because the number of padding bytes is sent in clear for SSL 2.0,
3778 and the extra bytes are just ignored. However ssl/s2_pkt.c
3779 failed to verify that the purported number of padding bytes is in
3783 *) Add OpenUNIX-8 support including shared libraries
3784 (Boyd Lynn Gerber <gerberb@zenez.com>).
3787 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
3788 'wristwatch attack' using huge encoding parameters (cf.
3789 James H. Manger's CRYPTO 2001 paper). Note that the
3790 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
3791 encoding parameters and hence was not vulnerable.
3794 *) BN_sqr() bug fix.
3795 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
3797 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
3798 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
3799 followed by modular reduction.
3800 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
3802 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
3803 equivalent based on BN_pseudo_rand() instead of BN_rand().
3806 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
3807 This function was broken, as the check for a new client hello message
3808 to handle SGC did not allow these large messages.
3809 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
3812 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
3815 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
3816 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
3819 *) Rework the configuration and shared library support for Tru64 Unix.
3820 The configuration part makes use of modern compiler features and
3821 still retains old compiler behavior for those that run older versions
3822 of the OS. The shared library support part includes a variant that
3823 uses the RPATH feature, and is available through the special
3824 configuration target "alpha-cc-rpath", which will never be selected
3826 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
3828 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
3829 with the same message size as in ssl3_get_certificate_request().
3830 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
3831 messages might inadvertently be reject as too long.
3832 [Petr Lampa <lampa@fee.vutbr.cz>]
3834 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
3837 *) Modified SSL library such that the verify_callback that has been set
3838 specificly for an SSL object with SSL_set_verify() is actually being
3839 used. Before the change, a verify_callback set with this function was
3840 ignored and the verify_callback() set in the SSL_CTX at the time of
3841 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
3842 to allow the necessary settings.
3845 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
3846 explicitly to NULL, as at least on Solaris 8 this seems not always to be
3847 done automatically (in contradiction to the requirements of the C
3848 standard). This made problems when used from OpenSSH.
3851 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
3852 dh->length and always used
3854 BN_rand_range(priv_key, dh->p).
3856 BN_rand_range() is not necessary for Diffie-Hellman, and this
3857 specific range makes Diffie-Hellman unnecessarily inefficient if
3858 dh->length (recommended exponent length) is much smaller than the
3859 length of dh->p. We could use BN_rand_range() if the order of
3860 the subgroup was stored in the DH structure, but we only have
3865 BN_rand(priv_key, l, ...)
3867 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
3873 RSA_eay_public_encrypt
3874 RSA_eay_private_decrypt
3875 RSA_eay_private_encrypt (signing)
3876 RSA_eay_public_decrypt (signature verification)
3878 (default implementations for RSA_public_encrypt,
3879 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
3880 always reject numbers >= n.
3883 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
3884 to synchronize access to 'locking_thread'. This is necessary on
3885 systems where access to 'locking_thread' (an 'unsigned long'
3886 variable) is not atomic.
3889 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
3890 *before* setting the 'crypto_lock_rand' flag. The previous code had
3891 a race condition if 0 is a valid thread ID.
3892 [Travis Vitek <vitek@roguewave.com>]
3894 *) Add support for shared libraries under Irix.
3895 [Albert Chin-A-Young <china@thewrittenword.com>]
3897 *) Add configuration option to build on Linux on both big-endian and
3899 [Ralf Baechle <ralf@uni-koblenz.de>]
3901 *) Add the possibility to create shared libraries on HP-UX.
3904 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
3906 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
3907 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
3908 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
3909 PRNG state recovery was possible based on the output of
3910 one PRNG request appropriately sized to gain knowledge on
3911 'md' followed by enough consecutive 1-byte PRNG requests
3912 to traverse all of 'state'.
3914 1. When updating 'md_local' (the current thread's copy of 'md')
3915 during PRNG output generation, hash all of the previous
3916 'md_local' value, not just the half used for PRNG output.
3918 2. Make the number of bytes from 'state' included into the hash
3919 independent from the number of PRNG bytes requested.
3921 The first measure alone would be sufficient to avoid
3922 Markku-Juhani's attack. (Actually it had never occurred
3923 to me that the half of 'md_local' used for chaining was the
3924 half from which PRNG output bytes were taken -- I had always
3925 assumed that the secret half would be used.) The second
3926 measure makes sure that additional data from 'state' is never
3927 mixed into 'md_local' in small portions; this heuristically
3928 further strengthens the PRNG.
3931 *) Fix crypto/bn/asm/mips3.s.
3934 *) When only the key is given to "enc", the IV is undefined. Print out
3935 an error message in this case.
3938 *) Handle special case when X509_NAME is empty in X509 printing routines.
3941 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
3942 positive and less than q.
3945 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
3946 used: it isn't thread safe and the add_lock_callback should handle
3948 [Paul Rose <Paul.Rose@bridge.com>]
3950 *) Verify that incoming data obeys the block size in
3951 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
3955 [Ulf Möller, Bodo Möller]
3957 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
3958 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
3959 when fixing the server behaviour for backwards-compatible 'client
3960 hello' messages. (Note that the attack is impractical against
3961 SSL 3.0 and TLS 1.0 anyway because length and version checking
3962 means that the probability of guessing a valid ciphertext is
3963 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
3966 Before 0.9.5, the countermeasure (hide the error by generating a
3967 random 'decryption result') did not work properly because
3968 ERR_clear_error() was missing, meaning that SSL_get_error() would
3969 detect the supposedly ignored error.
3971 Both problems are now fixed.
3974 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
3975 (previously it was 1024).
3978 *) Fix for compatibility mode trust settings: ignore trust settings
3979 unless some valid trust or reject settings are present.
3982 *) Fix for blowfish EVP: its a variable length cipher.
3985 *) Fix various bugs related to DSA S/MIME verification. Handle missing
3986 parameters in DSA public key structures and return an error in the
3987 DSA routines if parameters are absent.
3990 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
3991 in the current directory if neither $RANDFILE nor $HOME was set.
3992 RAND_file_name() in 0.9.6a returned NULL in this case. This has
3993 caused some confusion to Windows users who haven't defined $HOME.
3994 Thus RAND_file_name() is changed again: e_os.h can define a
3995 DEFAULT_HOME, which will be used if $HOME is not set.
3996 For Windows, we use "C:"; on other platforms, we still require
3997 environment variables.
3999 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4000 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4001 having multiple threads call RAND_poll() concurrently.
4004 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4005 combination of a flag and a thread ID variable.
4006 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4007 flag), *other* threads can enter ssleay_add_bytes without obeying
4008 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4009 that they do not hold after the first thread unsets add_do_not_lock).
4012 *) Change bctest again: '-x' expressions are not available in all
4016 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4018 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4019 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4021 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4022 the default extension for executables, if any. Also, make the perl
4023 scripts that use symlink() to test if it really exists and use "cp"
4024 if it doesn't. All this made OpenSSL compilable and installable in
4028 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4029 If SEQUENCE is length is indefinite just set c->slen to the total
4030 amount of data available.
4031 [Steve Henson, reported by shige@FreeBSD.org]
4032 [This change does not apply to 0.9.7.]
4034 *) Change bctest to avoid here-documents inside command substitution
4035 (workaround for FreeBSD /bin/sh bug).
4036 For compatibility with Ultrix, avoid shell functions (introduced
4037 in the bctest version that searches along $PATH).
4040 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4041 with des_encrypt() defined on some operating systems, like Solaris
4045 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4046 On the Importance of Eliminating Errors in Cryptographic
4047 Computations, J. Cryptology 14 (2001) 2, 101-119,
4048 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4051 *) MIPS assembler BIGNUM division bug fix.
4054 *) Disabled incorrect Alpha assembler code.
4057 *) Fix PKCS#7 decode routines so they correctly update the length
4058 after reading an EOC for the EXPLICIT tag.
4060 [This change does not apply to 0.9.7.]
4062 *) Fix bug in PKCS#12 key generation routines. This was triggered
4063 if a 3DES key was generated with a 0 initial byte. Include
4064 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4065 (but broken) behaviour.
4068 *) Enhance bctest to search for a working bc along $PATH and print
4070 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4072 *) Fix memory leaks in err.c: free err_data string if necessary;
4073 don't write to the wrong index in ERR_set_error_data.
4076 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4080 *) Replace rdtsc with _emit statements for VC++ version 5.
4081 [Jeremy Cooper <jeremy@baymoo.org>]
4083 *) Make it possible to reuse SSLv2 sessions.
4086 *) In copy_email() check for >= 0 as a return value for
4087 X509_NAME_get_index_by_NID() since 0 is a valid index.
4088 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4090 *) Avoid coredump with unsupported or invalid public keys by checking if
4091 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4092 PKCS7_verify() fails with non detached data.
4095 *) Don't use getenv in library functions when run as setuid/setgid.
4096 New function OPENSSL_issetugid().
4099 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4100 due to incorrect handling of multi-threading:
4102 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4104 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4106 3. Count how many times MemCheck_off() has been called so that
4107 nested use can be treated correctly. This also avoids
4108 inband-signalling in the previous code (which relied on the
4109 assumption that thread ID 0 is impossible).
4112 *) Add "-rand" option also to s_client and s_server.
4115 *) Fix CPU detection on Irix 6.x.
4116 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4117 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4119 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4122 [This change does not apply to 0.9.7.]
4124 *) Use the cached encoding of an X509_NAME structure rather than
4125 copying it. This is apparently the reason for the libsafe "errors"
4126 but the code is actually correct.
4129 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4130 Bleichenbacher's DSA attack.
4131 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4132 to be set and top=0 forces the highest bit to be set; top=-1 is new
4133 and leaves the highest bit random.
4134 [Ulf Moeller, Bodo Moeller]
4136 *) In the NCONF_...-based implementations for CONF_... queries
4137 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4138 a temporary CONF structure with the data component set to NULL
4139 (which gives segmentation faults in lh_retrieve).
4140 Instead, use NULL for the CONF pointer in CONF_get_string and
4141 CONF_get_number (which may use environment variables) and directly
4142 return NULL from CONF_get_section.
4145 *) Fix potential buffer overrun for EBCDIC.
4148 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4149 keyUsage if basicConstraints absent for a CA.
4152 *) Make SMIME_write_PKCS7() write mail header values with a format that
4153 is more generally accepted (no spaces before the semicolon), since
4154 some programs can't parse those values properly otherwise. Also make
4155 sure BIO's that break lines after each write do not create invalid
4159 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4160 macros previously used would not encode an empty SEQUENCE OF
4161 and break the signature.
4163 [This change does not apply to 0.9.7.]
4165 *) Zero the premaster secret after deriving the master secret in
4169 *) Add some EVP_add_digest_alias registrations (as found in
4170 OpenSSL_add_all_digests()) to SSL_library_init()
4171 aka OpenSSL_add_ssl_algorithms(). This provides improved
4172 compatibility with peers using X.509 certificates
4173 with unconventional AlgorithmIdentifier OIDs.
4176 *) Fix for Irix with NO_ASM.
4177 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4179 *) ./config script fixes.
4180 [Ulf Moeller, Richard Levitte]
4182 *) Fix 'openssl passwd -1'.
4185 *) Change PKCS12_key_gen_asc() so it can cope with non null
4186 terminated strings whose length is passed in the passlen
4187 parameter, for example from PEM callbacks. This was done
4188 by adding an extra length parameter to asc2uni().
4189 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4191 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4192 call failed, free the DSA structure.
4195 *) Fix to uni2asc() to cope with zero length Unicode strings.
4196 These are present in some PKCS#12 files.
4199 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4200 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4201 when writing a 32767 byte record.
4202 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4204 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4205 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4207 (RSA objects have a reference count access to which is protected
4208 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4209 so they are meant to be shared between threads.)
4210 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4211 "Reddie, Steven" <Steven.Reddie@ca.com>]
4213 *) Fix a deadlock in CRYPTO_mem_leaks().
4216 *) Use better test patterns in bntest.
4219 *) rand_win.c fix for Borland C.
4222 *) BN_rshift bugfix for n == 0.
4225 *) Add a 'bctest' script that checks for some known 'bc' bugs
4226 so that 'make test' does not abort just because 'bc' is broken.
4229 *) Store verify_result within SSL_SESSION also for client side to
4230 avoid potential security hole. (Re-used sessions on the client side
4231 always resulted in verify_result==X509_V_OK, not using the original
4232 result of the server certificate verification.)
4235 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4236 SSL3_RT_APPLICATION_DATA, return 0.
4237 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4241 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4242 releases, have been re-implemented by renaming the previous
4243 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4244 and ssl3_read_internal, respectively, and adding 'peek' parameters
4245 to them. The new ssl[23]_{read,peek} functions are calls to
4246 ssl[23]_read_internal with the 'peek' flag set appropriately.
4247 A 'peek' parameter has also been added to ssl3_read_bytes, which
4248 does the actual work for ssl3_read_internal.
4251 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4252 the method-specific "init()" handler. Also clean up ex_data after
4253 calling the method-specific "finish()" handler. Previously, this was
4254 happening the other way round.
4257 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4258 The previous value, 12, was not always sufficient for BN_mod_exp().
4261 *) Make sure that shared libraries get the internal name engine with
4262 the full version number and not just 0. This should mark the
4263 shared libraries as not backward compatible. Of course, this should
4264 be changed again when we can guarantee backward binary compatibility.
4267 *) Fix typo in get_cert_by_subject() in by_dir.c
4268 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4270 *) Rework the system to generate shared libraries:
4272 - Make note of the expected extension for the shared libraries and
4273 if there is a need for symbolic links from for example libcrypto.so.0
4274 to libcrypto.so.0.9.7. There is extended info in Configure for
4277 - Make as few rebuilds of the shared libraries as possible.
4279 - Still avoid linking the OpenSSL programs with the shared libraries.
4281 - When installing, install the shared libraries separately from the
4285 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4287 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4288 and not in SSL_clear because the latter is also used by the
4289 accept/connect functions; previously, the settings made by
4290 SSL_set_read_ahead would be lost during the handshake.
4291 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4293 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4294 Previously, it would create entries for disableed algorithms no
4298 *) Added several new manual pages for SSL_* function.
4301 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4303 *) In ssl23_get_client_hello, generate an error message when faced
4304 with an initial SSL 3.0/TLS record that is too small to contain the
4305 first two bytes of the ClientHello message, i.e. client_version.
4306 (Note that this is a pathologic case that probably has never happened
4307 in real life.) The previous approach was to use the version number
4308 from the record header as a substitute; but our protocol choice
4309 should not depend on that one because it is not authenticated
4310 by the Finished messages.
4313 *) More robust randomness gathering functions for Windows.
4314 [Jeffrey Altman <jaltman@columbia.edu>]
4316 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4317 not set then we don't setup the error code for issuer check errors
4318 to avoid possibly overwriting other errors which the callback does
4319 handle. If an application does set the flag then we assume it knows
4320 what it is doing and can handle the new informational codes
4324 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4325 a general "ANY" type, as such it should be able to decode anything
4326 including tagged types. However it didn't check the class so it would
4327 wrongly interpret tagged types in the same way as their universal
4328 counterpart and unknown types were just rejected. Changed so that the
4329 tagged and unknown types are handled in the same way as a SEQUENCE:
4330 that is the encoding is stored intact. There is also a new type
4331 "V_ASN1_OTHER" which is used when the class is not universal, in this
4332 case we have no idea what the actual type is so we just lump them all
4336 *) On VMS, stdout may very well lead to a file that is written to
4337 in a record-oriented fashion. That means that every write() will
4338 write a separate record, which will be read separately by the
4339 programs trying to read from it. This can be very confusing.
4341 The solution is to put a BIO filter in the way that will buffer
4342 text until a linefeed is reached, and then write everything a
4343 line at a time, so every record written will be an actual line,
4344 not chunks of lines and not (usually doesn't happen, but I've
4345 seen it once) several lines in one record. BIO_f_linebuffer() is
4348 Currently, it's a VMS-only method, because that's where it has
4349 been tested well enough.
4352 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4353 it can return incorrect results.
4354 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4355 but it was in 0.9.6-beta[12].)
4358 *) Disable the check for content being present when verifying detached
4359 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4360 include zero length content when signing messages.
4363 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4364 BIO_ctrl (for BIO pairs).
4367 *) Add DSO method for VMS.
4370 *) Bug fix: Montgomery multiplication could produce results with the
4374 *) Add RPM specification openssl.spec and modify it to build three
4375 packages. The default package contains applications, application
4376 documentation and run-time libraries. The devel package contains
4377 include files, static libraries and function documentation. The
4378 doc package contains the contents of the doc directory. The original
4379 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4382 *) Add a large number of documentation files for many SSL routines.
4383 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4385 *) Add a configuration entry for Sony News 4.
4386 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4388 *) Don't set the two most significant bits to one when generating a
4389 random number < q in the DSA library.
4392 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4393 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4394 the underlying transport is blocking) if a handshake took place.
4395 (The default behaviour is needed by applications such as s_client
4396 and s_server that use select() to determine when to use SSL_read;
4397 but for applications that know in advance when to expect data, it
4398 just makes things more complicated.)
4401 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4405 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4406 work better on such systems.
4407 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4409 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4410 Update PKCS12_parse() so it copies the friendlyName and the
4411 keyid to the certificates aux info.
4414 *) Fix bug in PKCS7_verify() which caused an infinite loop
4415 if there was more than one signature.
4416 [Sven Uszpelkat <su@celocom.de>]
4418 *) Major change in util/mkdef.pl to include extra information
4419 about each symbol, as well as presentig variables as well
4420 as functions. This change means that there's n more need
4421 to rebuild the .num files when some algorithms are excluded.
4424 *) Allow the verify time to be set by an application,
4425 rather than always using the current time.
4428 *) Phase 2 verify code reorganisation. The certificate
4429 verify code now looks up an issuer certificate by a
4430 number of criteria: subject name, authority key id
4431 and key usage. It also verifies self signed certificates
4432 by the same criteria. The main comparison function is
4433 X509_check_issued() which performs these checks.
4435 Lot of changes were necessary in order to support this
4436 without completely rewriting the lookup code.
4438 Authority and subject key identifier are now cached.
4440 The LHASH 'certs' is X509_STORE has now been replaced
4441 by a STACK_OF(X509_OBJECT). This is mainly because an
4442 LHASH can't store or retrieve multiple objects with
4443 the same hash value.
4445 As a result various functions (which were all internal
4446 use only) have changed to handle the new X509_STORE
4447 structure. This will break anything that messed round
4448 with X509_STORE internally.
4450 The functions X509_STORE_add_cert() now checks for an
4451 exact match, rather than just subject name.
4453 The X509_STORE API doesn't directly support the retrieval
4454 of multiple certificates matching a given criteria, however
4455 this can be worked round by performing a lookup first
4456 (which will fill the cache with candidate certificates)
4457 and then examining the cache for matches. This is probably
4458 the best we can do without throwing out X509_LOOKUP
4459 entirely (maybe later...).
4461 The X509_VERIFY_CTX structure has been enhanced considerably.
4463 All certificate lookup operations now go via a get_issuer()
4464 callback. Although this currently uses an X509_STORE it
4465 can be replaced by custom lookups. This is a simple way
4466 to bypass the X509_STORE hackery necessary to make this
4467 work and makes it possible to use more efficient techniques
4468 in future. A very simple version which uses a simple
4469 STACK for its trusted certificate store is also provided
4470 using X509_STORE_CTX_trusted_stack().
4472 The verify_cb() and verify() callbacks now have equivalents
4473 in the X509_STORE_CTX structure.
4475 X509_STORE_CTX also has a 'flags' field which can be used
4476 to customise the verify behaviour.
4479 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4480 excludes S/MIME capabilities.
4483 *) When a certificate request is read in keep a copy of the
4484 original encoding of the signed data and use it when outputing
4485 again. Signatures then use the original encoding rather than
4486 a decoded, encoded version which may cause problems if the
4487 request is improperly encoded.
4490 *) For consistency with other BIO_puts implementations, call
4491 buffer_write(b, ...) directly in buffer_puts instead of calling
4494 In BIO_puts, increment b->num_write as in BIO_write.
4495 [Peter.Sylvester@EdelWeb.fr]
4497 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4498 BN_zero, we may not return a BIGNUM with an array consisting of
4502 *) Avoid calling abort() from within the library when problems are
4503 detected, except if preprocessor symbols have been defined
4504 (such as REF_CHECK, BN_DEBUG etc.).
4507 *) New openssl application 'rsautl'. This utility can be
4508 used for low level RSA operations. DER public key
4509 BIO/fp routines also added.
4512 *) New Configure entry and patches for compiling on QNX 4.
4513 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4515 *) A demo state-machine implementation was sponsored by
4516 Nuron (http://www.nuron.com/) and is now available in
4517 demos/state_machine.
4520 *) New options added to the 'dgst' utility for signature
4521 generation and verification.
4524 *) Unrecognized PKCS#7 content types are now handled via a
4525 catch all ASN1_TYPE structure. This allows unsupported
4526 types to be stored as a "blob" and an application can
4527 encode and decode it manually.
4530 *) Fix various signed/unsigned issues to make a_strex.c
4532 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
4534 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
4535 length if passed a buffer. ASN1_INTEGER_to_BN failed
4536 if passed a NULL BN and its argument was negative.
4537 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
4539 *) Modification to PKCS#7 encoding routines to output definite
4540 length encoding. Since currently the whole structures are in
4541 memory there's not real point in using indefinite length
4542 constructed encoding. However if OpenSSL is compiled with
4543 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
4546 *) Added BIO_vprintf() and BIO_vsnprintf().
4549 *) Added more prefixes to parse for in the the strings written
4550 through a logging bio, to cover all the levels that are available
4551 through syslog. The prefixes are now:
4553 PANIC, EMERG, EMR => LOG_EMERG
4554 ALERT, ALR => LOG_ALERT
4555 CRIT, CRI => LOG_CRIT
4556 ERROR, ERR => LOG_ERR
4557 WARNING, WARN, WAR => LOG_WARNING
4558 NOTICE, NOTE, NOT => LOG_NOTICE
4559 INFO, INF => LOG_INFO
4560 DEBUG, DBG => LOG_DEBUG
4562 and as before, if none of those prefixes are present at the
4563 beginning of the string, LOG_ERR is chosen.
4565 On Win32, the LOG_* levels are mapped according to this:
4567 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
4568 LOG_WARNING => EVENTLOG_WARNING_TYPE
4569 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
4573 *) Made it possible to reconfigure with just the configuration
4574 argument "reconf" or "reconfigure". The command line arguments
4575 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
4576 and are retrieved from there when reconfiguring.
4580 [Assar Westerlund <assar@sics.se>, Richard Levitte]
4582 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
4585 *) The obj_dat.pl script was messing up the sorting of object
4586 names. The reason was that it compared the quoted version
4587 of strings as a result "OCSP" > "OCSP Signing" because
4588 " > SPACE. Changed script to store unquoted versions of
4589 names and add quotes on output. It was also omitting some
4590 names from the lookup table if they were given a default
4591 value (that is if SN is missing it is given the same
4592 value as LN and vice versa), these are now added on the
4593 grounds that if an object has a name we should be able to
4594 look it up. Finally added warning output when duplicate
4595 short or long names are found.
4598 *) Changes needed for Tandem NSK.
4599 [Scott Uroff <scott@xypro.com>]
4601 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
4602 RSA_padding_check_SSLv23(), special padding was never detected
4603 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
4604 version rollback attacks was not effective.
4606 In s23_clnt.c, don't use special rollback-attack detection padding
4607 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
4608 client; similarly, in s23_srvr.c, don't do the rollback check if
4609 SSL 2.0 is the only protocol enabled in the server.
4612 *) Make it possible to get hexdumps of unprintable data with 'openssl
4613 asn1parse'. By implication, the functions ASN1_parse_dump() and
4614 BIO_dump_indent() are added.
4617 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
4618 these print out strings and name structures based on various
4619 flags including RFC2253 support and proper handling of
4620 multibyte characters. Added options to the 'x509' utility
4621 to allow the various flags to be set.
4624 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
4625 Also change the functions X509_cmp_current_time() and
4626 X509_gmtime_adj() work with an ASN1_TIME structure,
4627 this will enable certificates using GeneralizedTime in validity
4628 dates to be checked.
4631 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
4632 negative public key encodings) on by default,
4633 NO_NEG_PUBKEY_BUG can be set to disable it.
4636 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
4637 content octets. An i2c_ASN1_OBJECT is unnecessary because
4638 the encoding can be trivially obtained from the structure.
4641 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
4642 not read locks (CRYPTO_r_[un]lock).
4645 *) A first attempt at creating official support for shared
4646 libraries through configuration. I've kept it so the
4647 default is static libraries only, and the OpenSSL programs
4648 are always statically linked for now, but there are
4649 preparations for dynamic linking in place.
4650 This has been tested on Linux and Tru64.
4653 *) Randomness polling function for Win9x, as described in:
4654 Peter Gutmann, Software Generation of Practically Strong
4658 *) Fix so PRNG is seeded in req if using an already existing
4662 *) New options to smime application. -inform and -outform
4663 allow alternative formats for the S/MIME message including
4664 PEM and DER. The -content option allows the content to be
4665 specified separately. This should allow things like Netscape
4666 form signing output easier to verify.
4669 *) Fix the ASN1 encoding of tags using the 'long form'.
4672 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
4673 STRING types. These convert content octets to and from the
4674 underlying type. The actual tag and length octets are
4675 already assumed to have been read in and checked. These
4676 are needed because all other string types have virtually
4677 identical handling apart from the tag. By having versions
4678 of the ASN1 functions that just operate on content octets
4679 IMPLICIT tagging can be handled properly. It also allows
4680 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
4681 and ASN1_INTEGER are identical apart from the tag.
4684 *) Change the handling of OID objects as follows:
4686 - New object identifiers are inserted in objects.txt, following
4687 the syntax given in objects.README.
4688 - objects.pl is used to process obj_mac.num and create a new
4690 - obj_dat.pl is used to create a new obj_dat.h, using the data in
4693 This is currently kind of a hack, and the perl code in objects.pl
4694 isn't very elegant, but it works as I intended. The simplest way
4695 to check that it worked correctly is to look in obj_dat.h and
4696 check the array nid_objs and make sure the objects haven't moved
4697 around (this is important!). Additions are OK, as well as
4698 consistent name changes.
4701 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
4704 *) Addition of the command line parameter '-rand file' to 'openssl req'.
4705 The given file adds to whatever has already been seeded into the
4706 random pool through the RANDFILE configuration file option or
4707 environment variable, or the default random state file.
4710 *) mkstack.pl now sorts each macro group into lexical order.
4711 Previously the output order depended on the order the files
4712 appeared in the directory, resulting in needless rewriting
4716 *) Patches to make OpenSSL compile under Win32 again. Mostly
4717 work arounds for the VC++ problem that it treats func() as
4718 func(void). Also stripped out the parts of mkdef.pl that
4719 added extra typesafe functions: these no longer exist.
4722 *) Reorganisation of the stack code. The macros are now all
4723 collected in safestack.h . Each macro is defined in terms of
4724 a "stack macro" of the form SKM_<name>(type, a, b). The
4725 DEBUG_SAFESTACK is now handled in terms of function casts,
4726 this has the advantage of retaining type safety without the
4727 use of additional functions. If DEBUG_SAFESTACK is not defined
4728 then the non typesafe macros are used instead. Also modified the
4729 mkstack.pl script to handle the new form. Needs testing to see
4730 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
4731 the default if no major problems. Similar behaviour for ASN1_SET_OF
4732 and PKCS12_STACK_OF.
4735 *) When some versions of IIS use the 'NET' form of private key the
4736 key derivation algorithm is different. Normally MD5(password) is
4737 used as a 128 bit RC4 key. In the modified case
4738 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
4739 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
4740 as the old Netscape_RSA functions except they have an additional
4741 'sgckey' parameter which uses the modified algorithm. Also added
4742 an -sgckey command line option to the rsa utility. Thanks to
4743 Adrian Peck <bertie@ncipher.com> for posting details of the modified
4744 algorithm to openssl-dev.
4747 *) The evp_local.h macros were using 'c.##kname' which resulted in
4748 invalid expansion on some systems (SCO 5.0.5 for example).
4749 Corrected to 'c.kname'.
4750 [Phillip Porch <root@theporch.com>]
4752 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
4753 a STACK of email addresses from a certificate or request, these look
4754 in the subject name and the subject alternative name extensions and
4755 omit any duplicate addresses.
4758 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
4759 This makes DSA verification about 2 % faster.
4762 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
4763 (meaning that now 2^5 values will be precomputed, which is only 4 KB
4764 plus overhead for 1024 bit moduli).
4765 This makes exponentiations about 0.5 % faster for 1024 bit
4766 exponents (as measured by "openssl speed rsa2048").
4769 *) Rename memory handling macros to avoid conflicts with other
4771 Malloc => OPENSSL_malloc
4772 Malloc_locked => OPENSSL_malloc_locked
4773 Realloc => OPENSSL_realloc
4774 Free => OPENSSL_free
4777 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
4778 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
4781 *) CygWin32 support.
4782 [John Jarvie <jjarvie@newsguy.com>]
4784 *) The type-safe stack code has been rejigged. It is now only compiled
4785 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
4786 by default all type-specific stack functions are "#define"d back to
4787 standard stack functions. This results in more streamlined output
4788 but retains the type-safety checking possibilities of the original
4792 *) The STACK code has been cleaned up, and certain type declarations
4793 that didn't make a lot of sense have been brought in line. This has
4794 also involved a cleanup of sorts in safestack.h to more correctly
4795 map type-safe stack functions onto their plain stack counterparts.
4796 This work has also resulted in a variety of "const"ifications of
4797 lots of the code, especially "_cmp" operations which should normally
4798 be prototyped with "const" parameters anyway.
4801 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
4802 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
4803 (The PRNG state consists of two parts, the large pool 'state' and 'md',
4804 where all of 'md' is used each time the PRNG is used, but 'state'
4805 is used only indexed by a cyclic counter. As entropy may not be
4806 well distributed from the beginning, 'md' is important as a
4807 chaining variable. However, the output function chains only half
4808 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
4809 all of 'md', and seeding with STATE_SIZE dummy bytes will result
4810 in all of 'state' being rewritten, with the new values depending
4811 on virtually all of 'md'. This overcomes the 80 bit limitation.)
4814 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
4815 the handshake is continued after ssl_verify_cert_chain();
4816 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
4817 can lead to 'unexplainable' connection aborts later.
4818 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
4820 *) Major EVP API cipher revision.
4821 Add hooks for extra EVP features. This allows various cipher
4822 parameters to be set in the EVP interface. Support added for variable
4823 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
4824 setting of RC2 and RC5 parameters.
4826 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
4829 Remove lots of duplicated code from the EVP library. For example *every*
4830 cipher init() function handles the 'iv' in the same way according to the
4831 cipher mode. They also all do nothing if the 'key' parameter is NULL and
4832 for CFB and OFB modes they zero ctx->num.
4834 New functionality allows removal of S/MIME code RC2 hack.
4836 Most of the routines have the same form and so can be declared in terms
4839 By shifting this to the top level EVP_CipherInit() it can be removed from
4840 all individual ciphers. If the cipher wants to handle IVs or keys
4841 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
4844 Change lots of functions like EVP_EncryptUpdate() to now return a
4845 value: although software versions of the algorithms cannot fail
4846 any installed hardware versions can.
4849 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
4850 this option is set, tolerate broken clients that send the negotiated
4851 protocol version number instead of the requested protocol version
4855 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
4856 i.e. non-zero for export ciphersuites, zero otherwise.
4857 Previous versions had this flag inverted, inconsistent with
4858 rsa_tmp_cb (..._TMP_RSA_CB).
4859 [Bodo Moeller; problem reported by Amit Chopra]
4861 *) Add missing DSA library text string. Work around for some IIS
4862 key files with invalid SEQUENCE encoding.
4865 *) Add a document (doc/standards.txt) that list all kinds of standards
4866 and so on that are implemented in OpenSSL.
4869 *) Enhance c_rehash script. Old version would mishandle certificates
4870 with the same subject name hash and wouldn't handle CRLs at all.
4871 Added -fingerprint option to crl utility, to support new c_rehash
4875 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
4878 *) Fix for SSL server purpose checking. Server checking was
4879 rejecting certificates which had extended key usage present
4880 but no ssl client purpose.
4881 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
4883 *) Make PKCS#12 code work with no password. The PKCS#12 spec
4884 is a little unclear about how a blank password is handled.
4885 Since the password in encoded as a BMPString with terminating
4886 double NULL a zero length password would end up as just the
4887 double NULL. However no password at all is different and is
4888 handled differently in the PKCS#12 key generation code. NS
4889 treats a blank password as zero length. MSIE treats it as no
4890 password on export: but it will try both on import. We now do
4891 the same: PKCS12_parse() tries zero length and no password if
4892 the password is set to "" or NULL (NULL is now a valid password:
4893 it wasn't before) as does the pkcs12 application.
4896 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
4897 perror when PEM_read_bio_X509_REQ fails, the error message must
4898 be obtained from the error queue.
4901 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
4902 it in ERR_remove_state if appropriate, and change ERR_get_state
4903 accordingly to avoid race conditions (this is necessary because
4904 thread_hash is no longer constant once set).
4907 *) Bugfix for linux-elf makefile.one.
4910 *) RSA_get_default_method() will now cause a default
4911 RSA_METHOD to be chosen if one doesn't exist already.
4912 Previously this was only set during a call to RSA_new()
4913 or RSA_new_method(NULL) meaning it was possible for
4914 RSA_get_default_method() to return NULL.
4917 *) Added native name translation to the existing DSO code
4918 that will convert (if the flag to do so is set) filenames
4919 that are sufficiently small and have no path information
4920 into a canonical native form. Eg. "blah" converted to
4921 "libblah.so" or "blah.dll" etc.
4924 *) New function ERR_error_string_n(e, buf, len) which is like
4925 ERR_error_string(e, buf), but writes at most 'len' bytes
4926 including the 0 terminator. For ERR_error_string_n, 'buf'
4928 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
4930 *) CONF library reworked to become more general. A new CONF
4931 configuration file reader "class" is implemented as well as a
4932 new functions (NCONF_*, for "New CONF") to handle it. The now
4933 old CONF_* functions are still there, but are reimplemented to
4934 work in terms of the new functions. Also, a set of functions
4935 to handle the internal storage of the configuration data is
4936 provided to make it easier to write new configuration file
4937 reader "classes" (I can definitely see something reading a
4938 configuration file in XML format, for example), called _CONF_*,
4939 or "the configuration storage API"...
4941 The new configuration file reading functions are:
4943 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
4944 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
4946 NCONF_default, NCONF_WIN32
4948 NCONF_dump_fp, NCONF_dump_bio
4950 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
4951 NCONF_new creates a new CONF object. This works in the same way
4952 as other interfaces in OpenSSL, like the BIO interface.
4953 NCONF_dump_* dump the internal storage of the configuration file,
4954 which is useful for debugging. All other functions take the same
4955 arguments as the old CONF_* functions wth the exception of the
4956 first that must be a `CONF *' instead of a `LHASH *'.
4958 To make it easer to use the new classes with the old CONF_* functions,
4959 the function CONF_set_default_method is provided.
4962 *) Add '-tls1' option to 'openssl ciphers', which was already
4963 mentioned in the documentation but had not been implemented.
4964 (This option is not yet really useful because even the additional
4965 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
4968 *) Initial DSO code added into libcrypto for letting OpenSSL (and
4969 OpenSSL-based applications) load shared libraries and bind to
4970 them in a portable way.
4971 [Geoff Thorpe, with contributions from Richard Levitte]
4973 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
4975 *) Make sure _lrotl and _lrotr are only used with MSVC.
4977 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
4978 (the default implementation of RAND_status).
4980 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
4981 to '-clrext' (= clear extensions), as intended and documented.
4982 [Bodo Moeller; inconsistency pointed out by Michael Attili
4985 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
4986 was larger than the MD block size.
4987 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
4989 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
4990 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
4991 using the passed key: if the passed key was a private key the result
4992 of X509_print(), for example, would be to print out all the private key
4996 *) des_quad_cksum() byte order bug fix.
4997 [Ulf Möller, using the problem description in krb4-0.9.7, where
4998 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5000 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5002 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5004 *) For easily testing in shell scripts whether some command
5005 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5006 returns with exit code 0 iff no command of the given name is available.
5007 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5008 the output goes to stdout and nothing is printed to stderr.
5009 Additional arguments are always ignored.
5011 Since for each cipher there is a command of the same name,
5012 the 'no-cipher' compilation switches can be tested this way.
5014 ('openssl no-XXX' is not able to detect pseudo-commands such
5015 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5018 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5021 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5022 is set; it will be thrown away anyway because each handshake creates
5024 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5025 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5026 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5027 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5030 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5031 'Q' and 'R' lose their special meanings (quit/renegotiate).
5032 This is part of what -quiet does; unlike -quiet, -ign_eof
5033 does not suppress any output.
5036 *) Add compatibility options to the purpose and trust code. The
5037 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5038 accepts a certificate or CA, this was the previous behaviour,
5039 with all the associated security issues.
5041 X509_TRUST_COMPAT is the old trust behaviour: only and
5042 automatically trust self signed roots in certificate store. A
5043 new trust setting X509_TRUST_DEFAULT is used to specify that
5044 a purpose has no associated trust setting and it should instead
5045 use the value in the default purpose.
5048 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5049 and fix a memory leak.
5052 *) In util/mkerr.pl (which implements 'make errors'), preserve
5053 reason strings from the previous version of the .c file, as
5054 the default to have only downcase letters (and digits) in
5055 automatically generated reasons codes is not always appropriate.
5058 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5059 using strerror. Previously, ERR_reason_error_string() returned
5060 library names as reason strings for SYSerr; but SYSerr is a special
5061 case where small numbers are errno values, not library numbers.
5064 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5065 converts DSA parameters into DH parameters. (When creating parameters,
5066 DSA_generate_parameters is used.)
5069 *) Include 'length' (recommended exponent length) in C code generated
5070 by 'openssl dhparam -C'.
5073 *) The second argument to set_label in perlasm was already being used
5074 so couldn't be used as a "file scope" flag. Moved to third argument
5078 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5079 instead of RAND_bytes for encryption IVs and salts.
5082 *) Include RAND_status() into RAND_METHOD instead of implementing
5083 it only for md_rand.c Otherwise replacing the PRNG by calling
5084 RAND_set_rand_method would be impossible.
5087 *) Don't let DSA_generate_key() enter an infinite loop if the random
5088 number generation fails.
5091 *) New 'rand' application for creating pseudo-random output.
5094 *) Added configuration support for Linux/IA64
5095 [Rolf Haberrecker <rolf@suse.de>]
5097 *) Assembler module support for Mingw32.
5100 *) Shared library support for HPUX (in shlib/).
5101 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5103 *) Shared library support for Solaris gcc.
5104 [Lutz Behnke <behnke@trustcenter.de>]
5106 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5108 *) PKCS7_encrypt() was adding text MIME headers twice because they
5109 were added manually and by SMIME_crlf_copy().
5112 *) In bntest.c don't call BN_rand with zero bits argument.
5113 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5115 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5116 case was implemented. This caused BN_div_recp() to fail occasionally.
5119 *) Add an optional second argument to the set_label() in the perl
5120 assembly language builder. If this argument exists and is set
5121 to 1 it signals that the assembler should use a symbol whose
5122 scope is the entire file, not just the current function. This
5123 is needed with MASM which uses the format label:: for this scope.
5124 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5126 *) Change the ASN1 types so they are typedefs by default. Before
5127 almost all types were #define'd to ASN1_STRING which was causing
5128 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5132 *) Change names of new functions to the new get1/get0 naming
5133 convention: After 'get1', the caller owns a reference count
5134 and has to call ..._free; 'get0' returns a pointer to some
5135 data structure without incrementing reference counters.
5136 (Some of the existing 'get' functions increment a reference
5137 counter, some don't.)
5138 Similarly, 'set1' and 'add1' functions increase reference
5139 counters or duplicate objects.
5142 *) Allow for the possibility of temp RSA key generation failure:
5143 the code used to assume it always worked and crashed on failure.
5146 *) Fix potential buffer overrun problem in BIO_printf().
5147 [Ulf Möller, using public domain code by Patrick Powell; problem
5148 pointed out by David Sacerdote <das33@cornell.edu>]
5150 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5151 RAND_egd() and RAND_status(). In the command line application,
5152 the EGD socket can be specified like a seed file using RANDFILE
5156 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5157 Some CAs (e.g. Verisign) distribute certificates in this form.
5160 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5161 list to exclude them. This means that no special compilation option
5162 is needed to use anonymous DH: it just needs to be included in the
5166 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5167 EVP_MD_type. The old functionality is available in a new macro called
5168 EVP_MD_md(). Change code that uses it and update docs.
5171 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5172 where the 'void *' argument is replaced by a function pointer argument.
5173 Previously 'void *' was abused to point to functions, which works on
5174 many platforms, but is not correct. As these functions are usually
5175 called by macros defined in OpenSSL header files, most source code
5176 should work without changes.
5179 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5180 sections with information on -D... compiler switches used for
5181 compiling the library so that applications can see them. To enable
5182 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5183 must be defined. E.g.,
5184 #define OPENSSL_ALGORITHM_DEFINES
5185 #include <openssl/opensslconf.h>
5186 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5187 [Richard Levitte, Ulf and Bodo Möller]
5189 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5193 *) Change the 'other' type in certificate aux info to a STACK_OF
5194 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5195 the required ASN1 format: arbitrary types determined by an OID.
5198 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5199 argument to 'req'. This is not because the function is newer or
5200 better than others it just uses the work 'NEW' in the certificate
5201 request header lines. Some software needs this.
5204 *) Reorganise password command line arguments: now passwords can be
5205 obtained from various sources. Delete the PEM_cb function and make
5206 it the default behaviour: i.e. if the callback is NULL and the
5207 usrdata argument is not NULL interpret it as a null terminated pass
5208 phrase. If usrdata and the callback are NULL then the pass phrase
5209 is prompted for as usual.
5212 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5213 the support is automatically enabled. The resulting binaries will
5214 autodetect the card and use it if present.
5215 [Ben Laurie and Compaq Inc.]
5217 *) Work around for Netscape hang bug. This sends certificate request
5218 and server done in one record. Since this is perfectly legal in the
5219 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5220 the bugs/SSLv3 entry for more info.
5223 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5226 *) Add -rand argument to smime and pkcs12 applications and read/write
5230 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5233 *) Add command line password options to the remaining applications.
5236 *) Bug fix for BN_div_recp() for numerators with an even number of
5240 *) More tests in bntest.c, and changed test_bn output.
5243 *) ./config recognizes MacOS X now.
5246 *) Bug fix for BN_div() when the first words of num and divsor are
5247 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5250 *) Add support for various broken PKCS#8 formats, and command line
5251 options to produce them.
5254 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5255 get temporary BIGNUMs from a BN_CTX.
5258 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5262 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5263 include a #define from the old name to the new. The original intent
5264 was that statically linked binaries could for example just call
5265 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5266 link with digests. This never worked becayse SSLeay_add_all_digests()
5267 and SSLeay_add_all_ciphers() were in the same source file so calling
5268 one would link with the other. They are now in separate source files.
5271 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5274 *) Use a less unusual form of the Miller-Rabin primality test (it used
5275 a binary algorithm for exponentiation integrated into the Miller-Rabin
5276 loop, our standard modexp algorithms are faster).
5279 *) Support for the EBCDIC character set completed.
5280 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5282 *) Source code cleanups: use const where appropriate, eliminate casts,
5283 use void * instead of char * in lhash.
5286 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5287 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5288 this the server could overwrite ephemeral keys that the client
5292 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5293 using 50 iterations of the Rabin-Miller test.
5295 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5296 iterations of the Rabin-Miller test as required by the appendix
5297 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5298 As BN_is_prime_fasttest includes trial division, DSA parameter
5299 generation becomes much faster.
5301 This implies a change for the callback functions in DSA_is_prime
5302 and DSA_generate_parameters: The callback function is called once
5303 for each positive witness in the Rabin-Miller test, not just
5304 occasionally in the inner loop; and the parameters to the
5305 callback function now provide an iteration count for the outer
5306 loop rather than for the current invocation of the inner loop.
5307 DSA_generate_parameters additionally can call the callback
5308 function with an 'iteration count' of -1, meaning that a
5309 candidate has passed the trial division test (when q is generated
5310 from an application-provided seed, trial division is skipped).
5313 *) New function BN_is_prime_fasttest that optionally does trial
5314 division before starting the Rabin-Miller test and has
5315 an additional BN_CTX * argument (whereas BN_is_prime always
5316 has to allocate at least one BN_CTX).
5317 'callback(1, -1, cb_arg)' is called when a number has passed the
5318 trial division stage.
5321 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5325 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5328 *) New function BN_pseudo_rand().
5331 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5332 bignum version of BN_from_montgomery() with the working code from
5333 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5337 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5338 made it impossible to use the same SSL_SESSION data structure in
5339 SSL2 clients in multiple threads.
5342 *) The return value of RAND_load_file() no longer counts bytes obtained
5343 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5344 to seed the PRNG (previously an explicit byte count was required).
5345 [Ulf Möller, Bodo Möller]
5347 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5348 used (char *) instead of (void *) and had casts all over the place.
5351 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5354 *) Retain source code compatibility for BN_prime_checks macro:
5355 BN_is_prime(..., BN_prime_checks, ...) now uses
5356 BN_prime_checks_for_size to determine the appropriate number of
5357 Rabin-Miller iterations.
5360 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5361 DH_CHECK_P_NOT_SAFE_PRIME.
5362 (Check if this is true? OpenPGP calls them "strong".)
5365 *) Merge the functionality of "dh" and "gendh" programs into a new program
5366 "dhparam". The old programs are retained for now but will handle DH keys
5367 (instead of parameters) in future.
5370 *) Make the ciphers, s_server and s_client programs check the return values
5371 when a new cipher list is set.
5374 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5375 ciphers. Before when the 56bit ciphers were enabled the sorting was
5378 The syntax for the cipher sorting has been extended to support sorting by
5379 cipher-strength (using the strength_bits hard coded in the tables).
5380 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5382 Fix a bug in the cipher-command parser: when supplying a cipher command
5383 string with an "undefined" symbol (neither command nor alphanumeric
5384 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5385 an error is flagged.
5387 Due to the strength-sorting extension, the code of the
5388 ssl_create_cipher_list() function was completely rearranged. I hope that
5389 the readability was also increased :-)
5390 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5392 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5393 for the first serial number and places 2 in the serial number file. This
5394 avoids problems when the root CA is created with serial number zero and
5395 the first user certificate has the same issuer name and serial number
5399 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5400 the new code. Add documentation for this stuff.
5403 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5404 X509_*() to X509at_*() on the grounds that they don't handle X509
5405 structures and behave in an analagous way to the X509v3 functions:
5406 they shouldn't be called directly but wrapper functions should be used
5409 So we also now have some wrapper functions that call the X509at functions
5410 when passed certificate requests. (TO DO: similar things can be done with
5411 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5412 things. Some of these need some d2i or i2d and print functionality
5413 because they handle more complex structures.)
5416 *) Add missing #ifndefs that caused missing symbols when building libssl
5417 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5418 NO_RSA in ssl/s2*.c.
5419 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5421 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5422 has a return value which indicates the quality of the random data
5423 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5424 error queue. New function RAND_pseudo_bytes() generates output that is
5425 guaranteed to be unique but not unpredictable. RAND_add is like
5426 RAND_seed, but takes an extra argument for an entropy estimate
5427 (RAND_seed always assumes full entropy).
5430 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5431 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5432 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5433 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5434 false-positive rate of at most 2^-80 for random input.
5437 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5440 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5441 in the 0.9.5 release), this returns the chain
5442 from an X509_CTX structure with a dup of the stack and all
5443 the X509 reference counts upped: so the stack will exist
5444 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5447 Also make SSL_SESSION_print() print out the verify return
5451 *) Add manpage for the pkcs12 command. Also change the default
5452 behaviour so MAC iteration counts are used unless the new
5453 -nomaciter option is used. This improves file security and
5454 only older versions of MSIE (4.0 for example) need it.
5457 *) Honor the no-xxx Configure options when creating .DEF files.
5460 *) Add PKCS#10 attributes to field table: challengePassword,
5461 unstructuredName and unstructuredAddress. These are taken from
5462 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5463 international characters are used.
5465 More changes to X509_ATTRIBUTE code: allow the setting of types
5466 based on strings. Remove the 'loc' parameter when adding
5467 attributes because these will be a SET OF encoding which is sorted
5471 *) Initial changes to the 'req' utility to allow request generation
5472 automation. This will allow an application to just generate a template
5473 file containing all the field values and have req construct the
5476 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5477 used all over the place including certificate requests and PKCS#7
5478 structures. They are currently handled manually where necessary with
5479 some primitive wrappers for PKCS#7. The new functions behave in a
5480 manner analogous to the X509 extension functions: they allow
5481 attributes to be looked up by NID and added.
5483 Later something similar to the X509V3 code would be desirable to
5484 automatically handle the encoding, decoding and printing of the
5485 more complex types. The string types like challengePassword can
5486 be handled by the string table functions.
5488 Also modified the multi byte string table handling. Now there is
5489 a 'global mask' which masks out certain types. The table itself
5490 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5491 is useful when for example there is only one permissible type
5492 (as in countryName) and using the mask might result in no valid
5496 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5497 SSL_get_peer_finished to allow applications to obtain the latest
5498 Finished messages sent to the peer or expected from the peer,
5499 respectively. (SSL_get_peer_finished is usually the Finished message
5500 actually received from the peer, otherwise the protocol will be aborted.)
5502 As the Finished message are message digests of the complete handshake
5503 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5504 be used for external authentication procedures when the authentication
5505 provided by SSL/TLS is not desired or is not enough.
5508 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5509 the host supports BWX extension and if Compaq C is present on the
5510 $PATH. Just exploiting of the BWX extension results in 20-30%
5511 performance kick for some algorithms, e.g. DES and RC4 to mention
5512 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5516 *) Add support for MS "fast SGC". This is arguably a violation of the
5517 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
5518 weak crypto and after checking the certificate is SGC a second one
5519 with strong crypto. MS SGC stops the first handshake after receiving
5520 the server certificate message and sends a second client hello. Since
5521 a server will typically do all the time consuming operations before
5522 expecting any further messages from the client (server key exchange
5523 is the most expensive) there is little difference between the two.
5525 To get OpenSSL to support MS SGC we have to permit a second client
5526 hello message after we have sent server done. In addition we have to
5527 reset the MAC if we do get this second client hello.
5530 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
5531 if a DER encoded private key is RSA or DSA traditional format. Changed
5532 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
5533 format DER encoded private key. Newer code should use PKCS#8 format which
5534 has the key type encoded in the ASN1 structure. Added DER private key
5535 support to pkcs8 application.
5538 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
5539 ciphersuites has been selected (as required by the SSL 3/TLS 1
5540 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
5541 is set, we interpret this as a request to violate the specification
5542 (the worst that can happen is a handshake failure, and 'correct'
5543 behaviour would result in a handshake failure anyway).
5546 *) In SSL_CTX_add_session, take into account that there might be multiple
5547 SSL_SESSION structures with the same session ID (e.g. when two threads
5548 concurrently obtain them from an external cache).
5549 The internal cache can handle only one SSL_SESSION with a given ID,
5550 so if there's a conflict, we now throw out the old one to achieve
5554 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
5555 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
5556 some routines that use cipher OIDs: some ciphers do not have OIDs
5557 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
5561 *) Simplify the trust setting structure and code. Now we just have
5562 two sequences of OIDs for trusted and rejected settings. These will
5563 typically have values the same as the extended key usage extension
5564 and any application specific purposes.
5566 The trust checking code now has a default behaviour: it will just
5567 check for an object with the same NID as the passed id. Functions can
5568 be provided to override either the default behaviour or the behaviour
5569 for a given id. SSL client, server and email already have functions
5570 in place for compatibility: they check the NID and also return "trusted"
5571 if the certificate is self signed.
5574 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
5575 traditional format into an EVP_PKEY structure.
5578 *) Add a password callback function PEM_cb() which either prompts for
5579 a password if usr_data is NULL or otherwise assumes it is a null
5580 terminated password. Allow passwords to be passed on command line
5581 environment or config files in a few more utilities.
5584 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
5585 keys. Add some short names for PKCS#8 PBE algorithms and allow them
5586 to be specified on the command line for the pkcs8 and pkcs12 utilities.
5587 Update documentation.
5590 *) Support for ASN1 "NULL" type. This could be handled before by using
5591 ASN1_TYPE but there wasn't any function that would try to read a NULL
5592 and produce an error if it couldn't. For compatibility we also have
5593 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
5594 don't allocate anything because they don't need to.
5597 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
5599 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
5601 *) Rebuild of the memory allocation routines used by OpenSSL code and
5602 possibly others as well. The purpose is to make an interface that
5603 provide hooks so anyone can build a separate set of allocation and
5604 deallocation routines to be used by OpenSSL, for example memory
5605 pool implementations, or something else, which was previously hard
5606 since Malloc(), Realloc() and Free() were defined as macros having
5607 the values malloc, realloc and free, respectively (except for Win32
5608 compilations). The same is provided for memory debugging code.
5609 OpenSSL already comes with functionality to find memory leaks, but
5610 this gives people a chance to debug other memory problems.
5612 With these changes, a new set of functions and macros have appeared:
5614 CRYPTO_set_mem_debug_functions() [F]
5615 CRYPTO_get_mem_debug_functions() [F]
5616 CRYPTO_dbg_set_options() [F]
5617 CRYPTO_dbg_get_options() [F]
5618 CRYPTO_malloc_debug_init() [M]
5620 The memory debug functions are NULL by default, unless the library
5621 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
5622 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
5623 gives the standard debugging functions that come with OpenSSL) or
5624 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
5625 provided by the library user) must be used. When the standard
5626 debugging functions are used, CRYPTO_dbg_set_options can be used to
5627 request additional information:
5628 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
5629 the CRYPTO_MDEBUG_xxx macro when compiling the library.
5631 Also, things like CRYPTO_set_mem_functions will always give the
5632 expected result (the new set of functions is used for allocation
5633 and deallocation) at all times, regardless of platform and compiler
5636 To finish it up, some functions that were never use in any other
5637 way than through macros have a new API and new semantic:
5640 CRYPTO_dbg_realloc()
5643 All macros of value have retained their old syntax.
5644 [Richard Levitte and Bodo Moeller]
5646 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
5647 ordering of SMIMECapabilities wasn't in "strength order" and there
5648 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
5652 *) Some ASN1 types with illegal zero length encoding (INTEGER,
5653 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
5654 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
5656 *) Merge in my S/MIME library for OpenSSL. This provides a simple
5657 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
5658 functionality to handle multipart/signed properly) and a utility
5659 called 'smime' to call all this stuff. This is based on code I
5660 originally wrote for Celo who have kindly allowed it to be
5661 included in OpenSSL.
5664 *) Add variants des_set_key_checked and des_set_key_unchecked of
5665 des_set_key (aka des_key_sched). Global variable des_check_key
5666 decides which of these is called by des_set_key; this way
5667 des_check_key behaves as it always did, but applications and
5668 the library itself, which was buggy for des_check_key == 1,
5669 have a cleaner way to pick the version they need.
5672 *) New function PKCS12_newpass() which changes the password of a
5676 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
5677 dynamic mix. In both cases the ids can be used as an index into the
5678 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
5679 functions so they accept a list of the field values and the
5680 application doesn't need to directly manipulate the X509_TRUST
5684 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
5688 *) Modify the way the V3 extension code looks up extensions. This now
5689 works in a similar way to the object code: we have some "standard"
5690 extensions in a static table which is searched with OBJ_bsearch()
5691 and the application can add dynamic ones if needed. The file
5692 crypto/x509v3/ext_dat.h now has the info: this file needs to be
5693 updated whenever a new extension is added to the core code and kept
5694 in ext_nid order. There is a simple program 'tabtest.c' which checks
5695 this. New extensions are not added too often so this file can readily
5696 be maintained manually.
5698 There are two big advantages in doing things this way. The extensions
5699 can be looked up immediately and no longer need to be "added" using
5700 X509V3_add_standard_extensions(): this function now does nothing.
5701 [Side note: I get *lots* of email saying the extension code doesn't
5702 work because people forget to call this function]
5703 Also no dynamic allocation is done unless new extensions are added:
5704 so if we don't add custom extensions there is no need to call
5705 X509V3_EXT_cleanup().
5708 *) Modify enc utility's salting as follows: make salting the default. Add a
5709 magic header, so unsalted files fail gracefully instead of just decrypting
5710 to garbage. This is because not salting is a big security hole, so people
5711 should be discouraged from doing it.
5714 *) Fixes and enhancements to the 'x509' utility. It allowed a message
5715 digest to be passed on the command line but it only used this
5716 parameter when signing a certificate. Modified so all relevant
5717 operations are affected by the digest parameter including the
5718 -fingerprint and -x509toreq options. Also -x509toreq choked if a
5719 DSA key was used because it didn't fix the digest.
5722 *) Initial certificate chain verify code. Currently tests the untrusted
5723 certificates for consistency with the verify purpose (which is set
5724 when the X509_STORE_CTX structure is set up) and checks the pathlength.
5726 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
5727 this is because it will reject chains with invalid extensions whereas
5728 every previous version of OpenSSL and SSLeay made no checks at all.
5730 Trust code: checks the root CA for the relevant trust settings. Trust
5731 settings have an initial value consistent with the verify purpose: e.g.
5732 if the verify purpose is for SSL client use it expects the CA to be
5733 trusted for SSL client use. However the default value can be changed to
5734 permit custom trust settings: one example of this would be to only trust
5735 certificates from a specific "secure" set of CAs.
5737 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
5738 which should be used for version portability: especially since the
5739 verify structure is likely to change more often now.
5741 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
5742 to set them. If not set then assume SSL clients will verify SSL servers
5745 Two new options to the verify program: -untrusted allows a set of
5746 untrusted certificates to be passed in and -purpose which sets the
5747 intended purpose of the certificate. If a purpose is set then the
5748 new chain verify code is used to check extension consistency.
5751 *) Support for the authority information access extension.
5754 *) Modify RSA and DSA PEM read routines to transparently handle
5755 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
5756 public keys in a format compatible with certificate
5757 SubjectPublicKeyInfo structures. Unfortunately there were already
5758 functions called *_PublicKey_* which used various odd formats so
5759 these are retained for compatibility: however the DSA variants were
5760 never in a public release so they have been deleted. Changed dsa/rsa
5761 utilities to handle the new format: note no releases ever handled public
5762 keys so we should be OK.
5764 The primary motivation for this change is to avoid the same fiasco
5765 that dogs private keys: there are several incompatible private key
5766 formats some of which are standard and some OpenSSL specific and
5767 require various evil hacks to allow partial transparent handling and
5768 even then it doesn't work with DER formats. Given the option anything
5769 other than PKCS#8 should be dumped: but the other formats have to
5770 stay in the name of compatibility.
5772 With public keys and the benefit of hindsight one standard format
5773 is used which works with EVP_PKEY, RSA or DSA structures: though
5774 it clearly returns an error if you try to read the wrong kind of key.
5776 Added a -pubkey option to the 'x509' utility to output the public key.
5777 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
5778 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
5779 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
5780 that do the same as the EVP_PKEY_assign_*() except they up the
5781 reference count of the added key (they don't "swallow" the
5785 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
5786 CRLs would fail if the file contained no certificates or no CRLs:
5787 added a new function to read in both types and return the number
5788 read: this means that if none are read it will be an error. The
5789 DER versions of the certificate and CRL reader would always fail
5790 because it isn't possible to mix certificates and CRLs in DER format
5791 without choking one or the other routine. Changed this to just read
5792 a certificate: this is the best we can do. Also modified the code
5793 in apps/verify.c to take notice of return codes: it was previously
5794 attempting to read in certificates from NULL pointers and ignoring
5795 any errors: this is one reason why the cert and CRL reader seemed
5796 to work. It doesn't check return codes from the default certificate
5797 routines: these may well fail if the certificates aren't installed.
5800 *) Code to support otherName option in GeneralName.
5803 *) First update to verify code. Change the verify utility
5804 so it warns if it is passed a self signed certificate:
5805 for consistency with the normal behaviour. X509_verify
5806 has been modified to it will now verify a self signed
5807 certificate if *exactly* the same certificate appears
5808 in the store: it was previously impossible to trust a
5809 single self signed certificate. This means that:
5810 openssl verify ss.pem
5811 now gives a warning about a self signed certificate but
5812 openssl verify -CAfile ss.pem ss.pem
5816 *) For servers, store verify_result in SSL_SESSION data structure
5817 (and add it to external session representation).
5818 This is needed when client certificate verifications fails,
5819 but an application-provided verification callback (set by
5820 SSL_CTX_set_cert_verify_callback) allows accepting the session
5821 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
5822 but returns 1): When the session is reused, we have to set
5823 ssl->verify_result to the appropriate error code to avoid
5825 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
5827 *) Fix a bug in the new PKCS#7 code: it didn't consider the
5828 case in PKCS7_dataInit() where the signed PKCS7 structure
5829 didn't contain any existing data because it was being created.
5830 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
5832 *) Add a salt to the key derivation routines in enc.c. This
5833 forms the first 8 bytes of the encrypted file. Also add a
5834 -S option to allow a salt to be input on the command line.
5837 *) New function X509_cmp(). Oddly enough there wasn't a function
5838 to compare two certificates. We do this by working out the SHA1
5839 hash and comparing that. X509_cmp() will be needed by the trust
5843 *) SSL_get1_session() is like SSL_get_session(), but increments
5844 the reference count in the SSL_SESSION returned.
5845 [Geoff Thorpe <geoff@eu.c2.net>]
5847 *) Fix for 'req': it was adding a null to request attributes.
5848 Also change the X509_LOOKUP and X509_INFO code to handle
5849 certificate auxiliary information.
5852 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
5856 *) Add the possibility to add extra information to the memory leak
5857 detecting output, to form tracebacks, showing from where each
5858 allocation was originated: CRYPTO_push_info("constant string") adds
5859 the string plus current file name and line number to a per-thread
5860 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
5861 is like calling CYRPTO_pop_info() until the stack is empty.
5862 Also updated memory leak detection code to be multi-thread-safe.
5865 *) Add options -text and -noout to pkcs7 utility and delete the
5866 encryption options which never did anything. Update docs.
5869 *) Add options to some of the utilities to allow the pass phrase
5870 to be included on either the command line (not recommended on
5871 OSes like Unix) or read from the environment. Update the
5872 manpages and fix a few bugs.
5875 *) Add a few manpages for some of the openssl commands.
5878 *) Fix the -revoke option in ca. It was freeing up memory twice,
5879 leaking and not finding already revoked certificates.
5882 *) Extensive changes to support certificate auxiliary information.
5883 This involves the use of X509_CERT_AUX structure and X509_AUX
5884 functions. An X509_AUX function such as PEM_read_X509_AUX()
5885 can still read in a certificate file in the usual way but it
5886 will also read in any additional "auxiliary information". By
5887 doing things this way a fair degree of compatibility can be
5888 retained: existing certificates can have this information added
5889 using the new 'x509' options.
5891 Current auxiliary information includes an "alias" and some trust
5892 settings. The trust settings will ultimately be used in enhanced
5893 certificate chain verification routines: currently a certificate
5894 can only be trusted if it is self signed and then it is trusted
5898 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
5899 The problem was that one of the replacement routines had not been working
5900 since SSLeay releases. For now the offending routine has been replaced
5901 with non-optimised assembler. Even so, this now gives around 95%
5902 performance improvement for 1024 bit RSA signs.
5905 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
5906 handling. Most clients have the effective key size in bits equal to
5907 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
5908 A few however don't do this and instead use the size of the decrypted key
5909 to determine the RC2 key length and the AlgorithmIdentifier to determine
5910 the effective key length. In this case the effective key length can still
5911 be 40 bits but the key length can be 168 bits for example. This is fixed
5912 by manually forcing an RC2 key into the EVP_PKEY structure because the
5913 EVP code can't currently handle unusual RC2 key sizes: it always assumes
5914 the key length and effective key length are equal.
5917 *) Add a bunch of functions that should simplify the creation of
5918 X509_NAME structures. Now you should be able to do:
5919 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
5920 and have it automatically work out the correct field type and fill in
5921 the structures. The more adventurous can try:
5922 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
5923 and it will (hopefully) work out the correct multibyte encoding.
5926 *) Change the 'req' utility to use the new field handling and multibyte
5927 copy routines. Before the DN field creation was handled in an ad hoc
5928 way in req, ca, and x509 which was rather broken and didn't support
5929 BMPStrings or UTF8Strings. Since some software doesn't implement
5930 BMPStrings or UTF8Strings yet, they can be enabled using the config file
5931 using the dirstring_type option. See the new comment in the default
5932 openssl.cnf for more info.
5935 *) Make crypto/rand/md_rand.c more robust:
5936 - Assure unique random numbers after fork().
5937 - Make sure that concurrent threads access the global counter and
5938 md serializably so that we never lose entropy in them
5939 or use exactly the same state in multiple threads.
5940 Access to the large state is not always serializable because
5941 the additional locking could be a performance killer, and
5942 md should be large enough anyway.
5945 *) New file apps/app_rand.c with commonly needed functionality
5946 for handling the random seed file.
5948 Use the random seed file in some applications that previously did not:
5950 dsaparam -genkey (which also ignored its '-rand' option),
5953 x509 (when signing).
5954 Except on systems with /dev/urandom, it is crucial to have a random
5955 seed file at least for key creation, DSA signing, and for DH exchanges;
5956 for RSA signatures we could do without one.
5958 gendh and gendsa (unlike genrsa) used to read only the first byte
5959 of each file listed in the '-rand' option. The function as previously
5960 found in genrsa is now in app_rand.c and is used by all programs
5961 that support '-rand'.
5964 *) In RAND_write_file, use mode 0600 for creating files;
5965 don't just chmod when it may be too late.
5968 *) Report an error from X509_STORE_load_locations
5969 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
5972 *) New function ASN1_mbstring_copy() this copies a string in either
5973 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
5974 into an ASN1_STRING type. A mask of permissible types is passed
5975 and it chooses the "minimal" type to use or an error if not type
5979 *) Add function equivalents to the various macros in asn1.h. The old
5980 macros are retained with an M_ prefix. Code inside the library can
5981 use the M_ macros. External code (including the openssl utility)
5982 should *NOT* in order to be "shared library friendly".
5985 *) Add various functions that can check a certificate's extensions
5986 to see if it usable for various purposes such as SSL client,
5987 server or S/MIME and CAs of these types. This is currently
5988 VERY EXPERIMENTAL but will ultimately be used for certificate chain
5989 verification. Also added a -purpose flag to x509 utility to
5990 print out all the purposes.
5993 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
5997 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
5998 for, obtain and decode and extension and obtain its critical flag.
5999 This allows all the necessary extension code to be handled in a
6000 single function call.
6003 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6004 platforms. See crypto/rc4/rc4_enc.c for further details.
6007 *) New -noout option to asn1parse. This causes no output to be produced
6008 its main use is when combined with -strparse and -out to extract data
6009 from a file (which may not be in ASN.1 format).
6012 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6013 when producing the local key id.
6014 [Richard Levitte <levitte@stacken.kth.se>]
6016 *) New option -dhparam in s_server. This allows a DH parameter file to be
6017 stated explicitly. If it is not stated then it tries the first server
6018 certificate file. The previous behaviour hard coded the filename
6022 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6023 a public key to be input or output. For example:
6024 openssl rsa -in key.pem -pubout -out pubkey.pem
6025 Also added necessary DSA public key functions to handle this.
6028 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6029 in the message. This was handled by allowing
6030 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6031 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6033 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6034 to the end of the strings whereas this didn't. This would cause problems
6035 if strings read with d2i_ASN1_bytes() were later modified.
6036 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6038 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6039 data and it contains EOF it will end up returning an error. This is
6040 caused by input 46 bytes long. The cause is due to the way base64
6041 BIOs find the start of base64 encoded data. They do this by trying a
6042 trial decode on each line until they find one that works. When they
6043 do a flag is set and it starts again knowing it can pass all the
6044 data directly through the decoder. Unfortunately it doesn't reset
6045 the context it uses. This means that if EOF is reached an attempt
6046 is made to pass two EOFs through the context and this causes the
6047 resulting error. This can also cause other problems as well. As is
6048 usual with these problems it takes *ages* to find and the fix is
6049 trivial: move one line.
6050 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6052 *) Ugly workaround to get s_client and s_server working under Windows. The
6053 old code wouldn't work because it needed to select() on sockets and the
6054 tty (for keypresses and to see if data could be written). Win32 only
6055 supports select() on sockets so we select() with a 1s timeout on the
6056 sockets and then see if any characters are waiting to be read, if none
6057 are present then we retry, we also assume we can always write data to
6058 the tty. This isn't nice because the code then blocks until we've
6059 received a complete line of data and it is effectively polling the
6060 keyboard at 1s intervals: however it's quite a bit better than not
6061 working at all :-) A dedicated Windows application might handle this
6062 with an event loop for example.
6065 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6066 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6067 will be called when RSA_sign() and RSA_verify() are used. This is useful
6068 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6069 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6070 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6071 This necessitated the support of an extra signature type NID_md5_sha1
6072 for SSL signatures and modifications to the SSL library to use it instead
6073 of calling RSA_public_decrypt() and RSA_private_encrypt().
6076 *) Add new -verify -CAfile and -CApath options to the crl program, these
6077 will lookup a CRL issuers certificate and verify the signature in a
6078 similar way to the verify program. Tidy up the crl program so it
6079 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6080 less strict. It will now permit CRL extensions even if it is not
6081 a V2 CRL: this will allow it to tolerate some broken CRLs.
6084 *) Initialize all non-automatic variables each time one of the openssl
6085 sub-programs is started (this is necessary as they may be started
6086 multiple times from the "OpenSSL>" prompt).
6087 [Lennart Bang, Bodo Moeller]
6089 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6090 removing all other RSA functionality (this is what NO_RSA does). This
6091 is so (for example) those in the US can disable those operations covered
6092 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6096 *) Non-copying interface to BIO pairs.
6097 (still largely untested)
6100 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6101 ASCII string. This was handled independently in various places before.
6104 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6105 UTF8 strings a character at a time.
6108 *) Use client_version from client hello to select the protocol
6109 (s23_srvr.c) and for RSA client key exchange verification
6110 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6113 *) Add various utility functions to handle SPKACs, these were previously
6114 handled by poking round in the structure internals. Added new function
6115 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6116 print, verify and generate SPKACs. Based on an original idea from
6117 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6120 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6123 *) Allow the config file extension section to be overwritten on the
6124 command line. Based on an original idea from Massimiliano Pala
6125 <madwolf@comune.modena.it>. The new option is called -extensions
6126 and can be applied to ca, req and x509. Also -reqexts to override
6127 the request extensions in req and -crlexts to override the crl extensions
6131 *) Add new feature to the SPKAC handling in ca. Now you can include
6132 the same field multiple times by preceding it by "XXXX." for example:
6135 this is the same syntax as used in the req config file.
6138 *) Allow certificate extensions to be added to certificate requests. These
6139 are specified in a 'req_extensions' option of the req section of the
6140 config file. They can be printed out with the -text option to req but
6141 are otherwise ignored at present.
6144 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6145 data read consists of only the final block it would not decrypted because
6146 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6147 A misplaced 'break' also meant the decrypted final block might not be
6148 copied until the next read.
6151 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6152 a few extra parameters to the DH structure: these will be useful if
6153 for example we want the value of 'q' or implement X9.42 DH.
6156 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6157 provides hooks that allow the default DSA functions or functions on a
6158 "per key" basis to be replaced. This allows hardware acceleration and
6159 hardware key storage to be handled without major modification to the
6160 library. Also added low level modexp hooks and CRYPTO_EX structure and
6161 associated functions.
6164 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6165 as "read only": it can't be written to and the buffer it points to will
6166 not be freed. Reading from a read only BIO is much more efficient than
6167 a normal memory BIO. This was added because there are several times when
6168 an area of memory needs to be read from a BIO. The previous method was
6169 to create a memory BIO and write the data to it, this results in two
6170 copies of the data and an O(n^2) reading algorithm. There is a new
6171 function BIO_new_mem_buf() which creates a read only memory BIO from
6172 an area of memory. Also modified the PKCS#7 routines to use read only
6176 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6177 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6178 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6179 but a retry condition occured while trying to read the rest.
6182 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6183 NID_pkcs7_encrypted by default: this was wrong since this should almost
6184 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6185 the encrypted data type: this is a more sensible place to put it and it
6186 allows the PKCS#12 code to be tidied up that duplicated this
6190 *) Changed obj_dat.pl script so it takes its input and output files on
6191 the command line. This should avoid shell escape redirection problems
6195 *) Initial support for certificate extension requests, these are included
6196 in things like Xenroll certificate requests. Included functions to allow
6197 extensions to be obtained and added.
6200 *) -crlf option to s_client and s_server for sending newlines as
6201 CRLF (as required by many protocols).
6204 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6206 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6207 [Ralf S. Engelschall]
6209 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6210 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6212 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6216 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6217 DH parameters/keys (q is lost during that conversion, but the resulting
6218 DH parameters contain its length).
6220 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6221 much faster than DH_generate_parameters (which creates parameters
6222 where p = 2*q + 1), and also the smaller q makes DH computations
6223 much more efficient (160-bit exponentiation instead of 1024-bit
6224 exponentiation); so this provides a convenient way to support DHE
6225 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6226 utter importance to use
6227 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6229 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6230 when such DH parameters are used, because otherwise small subgroup
6231 attacks may become possible!
6234 *) Avoid memory leak in i2d_DHparams.
6237 *) Allow the -k option to be used more than once in the enc program:
6238 this allows the same encrypted message to be read by multiple recipients.
6241 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6242 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6243 it will always use the numerical form of the OID, even if it has a short
6247 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6248 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6249 otherwise bn_mod_exp was called. In the case of hardware keys for example
6250 no private key components need be present and it might store extra data
6251 in the RSA structure, which cannot be accessed from bn_mod_exp.
6252 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6253 private key operations.
6256 *) Added support for SPARC Linux.
6259 *) pem_password_cb function type incompatibly changed from
6260 typedef int pem_password_cb(char *buf, int size, int rwflag);
6262 ....(char *buf, int size, int rwflag, void *userdata);
6263 so that applications can pass data to their callbacks:
6264 The PEM[_ASN1]_{read,write}... functions and macros now take an
6265 additional void * argument, which is just handed through whenever
6266 the password callback is called.
6267 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6269 New function SSL_CTX_set_default_passwd_cb_userdata.
6271 Compatibility note: As many C implementations push function arguments
6272 onto the stack in reverse order, the new library version is likely to
6273 interoperate with programs that have been compiled with the old
6274 pem_password_cb definition (PEM_whatever takes some data that
6275 happens to be on the stack as its last argument, and the callback
6276 just ignores this garbage); but there is no guarantee whatsoever that
6279 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6280 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6281 problems not only on Windows, but also on some Unix platforms.
6282 To avoid problematic command lines, these definitions are now in an
6283 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6284 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6287 *) MIPS III/IV assembler module is reimplemented.
6290 *) More DES library cleanups: remove references to srand/rand and
6291 delete an unused file.
6294 *) Add support for the the free Netwide assembler (NASM) under Win32,
6295 since not many people have MASM (ml) and it can be hard to obtain.
6296 This is currently experimental but it seems to work OK and pass all
6297 the tests. Check out INSTALL.W32 for info.
6300 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6301 without temporary keys kept an extra copy of the server key,
6302 and connections with temporary keys did not free everything in case
6306 *) New function RSA_check_key and new openssl rsa option -check
6307 for verifying the consistency of RSA keys.
6308 [Ulf Moeller, Bodo Moeller]
6310 *) Various changes to make Win32 compile work:
6311 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6312 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6313 comparison" warnings.
6314 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6317 *) Add a debugging option to PKCS#5 v2 key generation function: when
6318 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6319 derived keys are printed to stderr.
6322 *) Copy the flags in ASN1_STRING_dup().
6323 [Roman E. Pavlov <pre@mo.msk.ru>]
6325 *) The x509 application mishandled signing requests containing DSA
6326 keys when the signing key was also DSA and the parameters didn't match.
6328 It was supposed to omit the parameters when they matched the signing key:
6329 the verifying software was then supposed to automatically use the CA's
6330 parameters if they were absent from the end user certificate.
6332 Omitting parameters is no longer recommended. The test was also
6333 the wrong way round! This was probably due to unusual behaviour in
6334 EVP_cmp_parameters() which returns 1 if the parameters match.
6335 This meant that parameters were omitted when they *didn't* match and
6336 the certificate was useless. Certificates signed with 'ca' didn't have
6338 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6340 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6341 The interface is as follows:
6342 Applications can use
6343 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6344 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6345 "off" is now the default.
6346 The library internally uses
6347 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6348 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6349 to disable memory-checking temporarily.
6351 Some inconsistent states that previously were possible (and were
6352 even the default) are now avoided.
6354 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6355 with each memory chunk allocated; this is occasionally more helpful
6356 than just having a counter.
6358 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6360 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6364 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6365 which largely parallels "options", but is for changing API behaviour,
6366 whereas "options" are about protocol behaviour.
6367 Initial "mode" flags are:
6369 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6370 a single record has been written.
6371 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6372 retries use the same buffer location.
6373 (But all of the contents must be
6377 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6380 *) Fix problems with no-hmac etc.
6381 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6383 *) New functions RSA_get_default_method(), RSA_set_method() and
6384 RSA_get_method(). These allows replacement of RSA_METHODs without having
6385 to mess around with the internals of an RSA structure.
6388 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6389 Also really enable memory leak checks in openssl.c and in some
6391 [Chad C. Mulligan, Bodo Moeller]
6393 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6394 up the length of negative integers. This has now been simplified to just
6395 store the length when it is first determined and use it later, rather
6396 than trying to keep track of where data is copied and updating it to
6398 [Steve Henson, reported by Brien Wheeler
6399 <bwheeler@authentica-security.com>]
6401 *) Add a new function PKCS7_signatureVerify. This allows the verification
6402 of a PKCS#7 signature but with the signing certificate passed to the
6403 function itself. This contrasts with PKCS7_dataVerify which assumes the
6404 certificate is present in the PKCS#7 structure. This isn't always the
6405 case: certificates can be omitted from a PKCS#7 structure and be
6406 distributed by "out of band" means (such as a certificate database).
6409 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6410 function prototypes in pem.h, also change util/mkdef.pl to add the
6411 necessary function names.
6414 *) mk1mf.pl (used by Windows builds) did not properly read the
6415 options set by Configure in the top level Makefile, and Configure
6416 was not even able to write more than one option correctly.
6417 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6420 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6421 file to be loaded from a BIO or FILE pointer. The BIO version will
6422 for example allow memory BIOs to contain config info.
6425 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6426 Whoever hopes to achieve shared-library compatibility across versions
6427 must use this, not the compile-time macro.
6428 (Exercise 0.9.4: Which is the minimum library version required by
6430 Note: All this applies only to multi-threaded programs, others don't
6434 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6435 through a BIO pair triggered the default case, i.e.
6436 SSLerr(...,SSL_R_UNKNOWN_STATE).
6439 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6440 can use the SSL library even if none of the specific BIOs is
6444 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6445 for the encoded length.
6446 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6448 *) Add initial documentation of the X509V3 functions.
6451 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6452 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6453 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6454 secure PKCS#8 private key format with a high iteration count.
6457 *) Fix determination of Perl interpreter: A perl or perl5
6458 _directory_ in $PATH was also accepted as the interpreter.
6459 [Ralf S. Engelschall]
6461 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6462 wrong with it but it was very old and did things like calling
6463 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6467 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6468 to use the new extension code.
6471 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6472 with macros. This should make it easier to change their form, add extra
6473 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6477 *) Add to configuration table a new entry that can specify an alternative
6478 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6479 according to Mark Crispin <MRC@Panda.COM>.
6483 *) DES CBC did not update the IV. Weird.
6486 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6487 Changing the behaviour of the former might break existing programs --
6488 where IV updating is needed, des_ncbc_encrypt can be used.
6491 *) When bntest is run from "make test" it drives bc to check its
6492 calculations, as well as internally checking them. If an internal check
6493 fails, it needs to cause bc to give a non-zero result or make test carries
6494 on without noticing the failure. Fixed.
6497 *) DES library cleanups.
6500 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6501 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6502 ciphers. NOTE: although the key derivation function has been verified
6503 against some published test vectors it has not been extensively tested
6504 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6508 *) Instead of "mkdir -p", which is not fully portable, use new
6509 Perl script "util/mkdir-p.pl".
6512 *) Rewrite the way password based encryption (PBE) is handled. It used to
6513 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6514 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6515 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6516 the 'parameter' field of the AlgorithmIdentifier is passed to the
6517 underlying key generation function so it must do its own ASN1 parsing.
6518 This has also changed the EVP_PBE_CipherInit() function which now has a
6519 'parameter' argument instead of literal salt and iteration count values
6520 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
6523 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
6524 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
6525 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
6526 KEY" because this clashed with PKCS#8 unencrypted string. Since this
6527 value was just used as a "magic string" and not used directly its
6528 value doesn't matter.
6531 *) Introduce some semblance of const correctness to BN. Shame C doesn't
6535 *) "linux-sparc64" configuration (ultrapenguin).
6536 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
6537 "linux-sparc" configuration.
6538 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
6540 *) config now generates no-xxx options for missing ciphers.
6543 *) Support the EBCDIC character set (work in progress).
6544 File ebcdic.c not yet included because it has a different license.
6545 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6547 *) Support BS2000/OSD-POSIX.
6548 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6550 *) Make callbacks for key generation use void * instead of char *.
6553 *) Make S/MIME samples compile (not yet tested).
6556 *) Additional typesafe stacks.
6559 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
6563 Changes between 0.9.3 and 0.9.3a [29 May 1999]
6565 *) New configuration variant "sco5-gcc".
6567 *) Updated some demos.
6568 [Sean O Riordain, Wade Scholine]
6570 *) Add missing BIO_free at exit of pkcs12 application.
6573 *) Fix memory leak in conf.c.
6576 *) Updates for Win32 to assembler version of MD5.
6579 *) Set #! path to perl in apps/der_chop to where we found it
6580 instead of using a fixed path.
6583 *) SHA library changes for irix64-mips4-cc.
6586 *) Improvements for VMS support.
6590 Changes between 0.9.2b and 0.9.3 [24 May 1999]
6592 *) Bignum library bug fix. IRIX 6 passes "make test" now!
6593 This also avoids the problems with SC4.2 and unpatched SC5.
6594 [Andy Polyakov <appro@fy.chalmers.se>]
6596 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
6597 These are required because of the typesafe stack would otherwise break
6598 existing code. If old code used a structure member which used to be STACK
6599 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
6600 sk_num or sk_value it would produce an error because the num, data members
6601 are not present in STACK_OF. Now it just produces a warning. sk_set
6602 replaces the old method of assigning a value to sk_value
6603 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
6604 that does this will no longer work (and should use sk_set instead) but
6605 this could be regarded as a "questionable" behaviour anyway.
6608 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
6609 correctly handle encrypted S/MIME data.
6612 *) Change type of various DES function arguments from des_cblock
6613 (which means, in function argument declarations, pointer to char)
6614 to des_cblock * (meaning pointer to array with 8 char elements),
6615 which allows the compiler to do more typechecking; it was like
6616 that back in SSLeay, but with lots of ugly casts.
6618 Introduce new type const_des_cblock.
6621 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
6622 problems: find RecipientInfo structure that matches recipient certificate
6623 and initialise the ASN1 structures properly based on passed cipher.
6626 *) Belatedly make the BN tests actually check the results.
6629 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
6630 to and from BNs: it was completely broken. New compilation option
6631 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
6632 key elements as negative integers.
6635 *) Reorganize and speed up MD5.
6636 [Andy Polyakov <appro@fy.chalmers.se>]
6639 [Richard Levitte <richard@levitte.org>]
6641 *) New option -out to asn1parse to allow the parsed structure to be
6642 output to a file. This is most useful when combined with the -strparse
6643 option to examine the output of things like OCTET STRINGS.
6646 *) Make SSL library a little more fool-proof by not requiring any longer
6647 that SSL_set_{accept,connect}_state be called before
6648 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
6649 in many applications because usually everything *appeared* to work as
6650 intended anyway -- now it really works as intended).
6653 *) Move openssl.cnf out of lib/.
6656 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
6657 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
6658 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
6659 [Ralf S. Engelschall]
6661 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
6662 handle PKCS#7 enveloped data properly.
6663 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
6665 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
6666 copying pointers. The cert_st handling is changed by this in
6667 various ways (and thus what used to be known as ctx->default_cert
6668 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
6669 any longer when s->cert does not give us what we need).
6670 ssl_cert_instantiate becomes obsolete by this change.
6671 As soon as we've got the new code right (possibly it already is?),
6672 we have solved a couple of bugs of the earlier code where s->cert
6673 was used as if it could not have been shared with other SSL structures.
6675 Note that using the SSL API in certain dirty ways now will result
6676 in different behaviour than observed with earlier library versions:
6677 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
6678 does not influence s as it used to.
6680 In order to clean up things more thoroughly, inside SSL_SESSION
6681 we don't use CERT any longer, but a new structure SESS_CERT
6682 that holds per-session data (if available); currently, this is
6683 the peer's certificate chain and, for clients, the server's certificate
6684 and temporary key. CERT holds only those values that can have
6685 meaningful defaults in an SSL_CTX.
6688 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
6689 from the internal representation. Various PKCS#7 fixes: remove some
6690 evil casts and set the enc_dig_alg field properly based on the signing
6694 *) Allow PKCS#12 password to be set from the command line or the
6695 environment. Let 'ca' get its config file name from the environment
6696 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
6700 *) Allow certificate policies extension to use an IA5STRING for the
6701 organization field. This is contrary to the PKIX definition but
6702 VeriSign uses it and IE5 only recognises this form. Document 'x509'
6706 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
6707 without disallowing inline assembler and the like for non-pedantic builds.
6710 *) Support Borland C++ builder.
6711 [Janez Jere <jj@void.si>, modified by Ulf Möller]
6716 *) SHA-1 cleanups and performance enhancements.
6717 [Andy Polyakov <appro@fy.chalmers.se>]
6719 *) Sparc v8plus assembler for the bignum library.
6720 [Andy Polyakov <appro@fy.chalmers.se>]
6722 *) Accept any -xxx and +xxx compiler options in Configure.
6725 *) Update HPUX configuration.
6728 *) Add missing sk_<type>_unshift() function to safestack.h
6729 [Ralf S. Engelschall]
6731 *) New function SSL_CTX_use_certificate_chain_file that sets the
6732 "extra_cert"s in addition to the certificate. (This makes sense
6733 only for "PEM" format files, as chains as a whole are not
6737 *) Support verify_depth from the SSL API.
6738 x509_vfy.c had what can be considered an off-by-one-error:
6739 Its depth (which was not part of the external interface)
6740 was actually counting the number of certificates in a chain;
6741 now it really counts the depth.
6744 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
6745 instead of X509err, which often resulted in confusing error
6746 messages since the error codes are not globally unique
6747 (e.g. an alleged error in ssl3_accept when a certificate
6748 didn't match the private key).
6750 *) New function SSL_CTX_set_session_id_context that allows to set a default
6751 value (so that you don't need SSL_set_session_id_context for each
6752 connection using the SSL_CTX).
6755 *) OAEP decoding bug fix.
6758 *) Support INSTALL_PREFIX for package builders, as proposed by
6762 *) New Configure options "threads" and "no-threads". For systems
6763 where the proper compiler options are known (currently Solaris
6764 and Linux), "threads" is the default.
6767 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
6770 *) Install various scripts to $(OPENSSLDIR)/misc, not to
6771 $(INSTALLTOP)/bin -- they shouldn't clutter directories
6772 such as /usr/local/bin.
6775 *) "make linux-shared" to build shared libraries.
6776 [Niels Poppe <niels@netbox.org>]
6778 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
6781 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
6782 extension adding in x509 utility.
6785 *) Remove NOPROTO sections and error code comments.
6788 *) Partial rewrite of the DEF file generator to now parse the ANSI
6792 *) New Configure options --prefix=DIR and --openssldir=DIR.
6795 *) Complete rewrite of the error code script(s). It is all now handled
6796 by one script at the top level which handles error code gathering,
6797 header rewriting and C source file generation. It should be much better
6798 than the old method: it now uses a modified version of Ulf's parser to
6799 read the ANSI prototypes in all header files (thus the old K&R definitions
6800 aren't needed for error creation any more) and do a better job of
6801 translating function codes into names. The old 'ASN1 error code imbedded
6802 in a comment' is no longer necessary and it doesn't use .err files which
6803 have now been deleted. Also the error code call doesn't have to appear all
6804 on one line (which resulted in some large lines...).
6807 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
6810 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
6811 0 (which usually indicates a closed connection), but continue reading.
6814 *) Fix some race conditions.
6817 *) Add support for CRL distribution points extension. Add Certificate
6818 Policies and CRL distribution points documentation.
6821 *) Move the autogenerated header file parts to crypto/opensslconf.h.
6824 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
6825 8 of keying material. Merlin has also confirmed interop with this fix
6826 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
6827 [Merlin Hughes <merlin@baltimore.ie>]
6829 *) Fix lots of warnings.
6830 [Richard Levitte <levitte@stacken.kth.se>]
6832 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
6833 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
6834 [Richard Levitte <levitte@stacken.kth.se>]
6836 *) Fix problems with sizeof(long) == 8.
6837 [Andy Polyakov <appro@fy.chalmers.se>]
6839 *) Change functions to ANSI C.
6842 *) Fix typos in error codes.
6843 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
6845 *) Remove defunct assembler files from Configure.
6848 *) SPARC v8 assembler BIGNUM implementation.
6849 [Andy Polyakov <appro@fy.chalmers.se>]
6851 *) Support for Certificate Policies extension: both print and set.
6852 Various additions to support the r2i method this uses.
6855 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
6856 return a const string when you are expecting an allocated buffer.
6859 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
6860 types DirectoryString and DisplayText.
6863 *) Add code to allow r2i extensions to access the configuration database,
6864 add an LHASH database driver and add several ctx helper functions.
6867 *) Fix an evil bug in bn_expand2() which caused various BN functions to
6868 fail when they extended the size of a BIGNUM.
6871 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
6872 support typesafe stack.
6875 *) Fix typo in SSL_[gs]et_options().
6876 [Nils Frostberg <nils@medcom.se>]
6878 *) Delete various functions and files that belonged to the (now obsolete)
6879 old X509V3 handling code.
6882 *) New Configure option "rsaref".
6885 *) Don't auto-generate pem.h.
6888 *) Introduce type-safe ASN.1 SETs.
6891 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
6892 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
6894 *) Introduce type-safe STACKs. This will almost certainly break lots of code
6895 that links with OpenSSL (well at least cause lots of warnings), but fear
6896 not: the conversion is trivial, and it eliminates loads of evil casts. A
6897 few STACKed things have been converted already. Feel free to convert more.
6898 In the fullness of time, I'll do away with the STACK type altogether.
6901 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
6902 specified in <certfile> by updating the entry in the index.txt file.
6903 This way one no longer has to edit the index.txt file manually for
6904 revoking a certificate. The -revoke option does the gory details now.
6905 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
6907 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
6908 `-text' option at all and this way the `-noout -text' combination was
6909 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
6910 [Ralf S. Engelschall]
6912 *) Make sure a corresponding plain text error message exists for the
6913 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
6914 verify callback function determined that a certificate was revoked.
6915 [Ralf S. Engelschall]
6917 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
6918 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
6919 all available cipers including rc5, which was forgotten until now.
6920 In order to let the testing shell script know which algorithms
6921 are available, a new (up to now undocumented) command
6922 "openssl list-cipher-commands" is used.
6925 *) Bugfix: s_client occasionally would sleep in select() when
6926 it should have checked SSL_pending() first.
6929 *) New functions DSA_do_sign and DSA_do_verify to provide access to
6930 the raw DSA values prior to ASN.1 encoding.
6933 *) Tweaks to Configure
6934 [Niels Poppe <niels@netbox.org>]
6936 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
6940 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
6943 *) New config option to avoid instructions that are illegal on the 80386.
6944 The default code is faster, but requires at least a 486.
6947 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
6948 SSL2_SERVER_VERSION (not used at all) macros, which are now the
6949 same as SSL2_VERSION anyway.
6952 *) New "-showcerts" option for s_client.
6955 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
6956 application. Various cleanups and fixes.
6959 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
6960 modify error routines to work internally. Add error codes and PBE init
6961 to library startup routines.
6964 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
6965 packing functions to asn1 and evp. Changed function names and error
6966 codes along the way.
6969 *) PKCS12 integration: and so it begins... First of several patches to
6970 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
6971 objects to objects.h
6974 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
6975 and display support for Thawte strong extranet extension.
6978 *) Add LinuxPPC support.
6979 [Jeff Dubrule <igor@pobox.org>]
6981 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
6982 bn_div_words in alpha.s.
6983 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
6985 *) Make sure the RSA OAEP test is skipped under -DRSAref because
6986 OAEP isn't supported when OpenSSL is built with RSAref.
6987 [Ulf Moeller <ulf@fitug.de>]
6989 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
6990 so they no longer are missing under -DNOPROTO.
6991 [Soren S. Jorvang <soren@t.dk>]
6994 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
6996 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
6997 doesn't work when the session is reused. Coming soon!
7000 *) Fix a security hole, that allows sessions to be reused in the wrong
7001 context thus bypassing client cert protection! All software that uses
7002 client certs and session caches in multiple contexts NEEDS PATCHING to
7003 allow session reuse! A fuller solution is in the works.
7004 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7006 *) Some more source tree cleanups (removed obsolete files
7007 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7008 permission on "config" script to be executable) and a fix for the INSTALL
7010 [Ulf Moeller <ulf@fitug.de>]
7012 *) Remove some legacy and erroneous uses of malloc, free instead of
7014 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7016 *) Make rsa_oaep_test return non-zero on error.
7017 [Ulf Moeller <ulf@fitug.de>]
7019 *) Add support for native Solaris shared libraries. Configure
7020 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7021 if someone would make that last step automatic.
7022 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7024 *) ctx_size was not built with the right compiler during "make links". Fixed.
7027 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7028 except NULL ciphers". This means the default cipher list will no longer
7029 enable NULL ciphers. They need to be specifically enabled e.g. with
7030 the string "DEFAULT:eNULL".
7033 *) Fix to RSA private encryption routines: if p < q then it would
7034 occasionally produce an invalid result. This will only happen with
7035 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7038 *) Be less restrictive and allow also `perl util/perlpath.pl
7039 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7040 because this way one can also use an interpreter named `perl5' (which is
7041 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7042 installed as `perl').
7043 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7045 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7046 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7048 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7049 advapi32.lib to Win32 build and change the pem test comparision
7050 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7051 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7052 and crypto/des/ede_cbcm_enc.c.
7055 *) DES quad checksum was broken on big-endian architectures. Fixed.
7058 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7059 Win32 test batch file so it (might) work again. The Win32 test batch file
7060 is horrible: I feel ill....
7063 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7064 in e_os.h. Audit of header files to check ANSI and non ANSI
7065 sections: 10 functions were absent from non ANSI section and not exported
7066 from Windows DLLs. Fixed up libeay.num for new functions.
7069 *) Make `openssl version' output lines consistent.
7070 [Ralf S. Engelschall]
7072 *) Fix Win32 symbol export lists for BIO functions: Added
7073 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7074 to ms/libeay{16,32}.def.
7075 [Ralf S. Engelschall]
7077 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7078 fine under Unix and passes some trivial tests I've now added. But the
7079 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7080 added to make sure no one expects that this stuff really works in the
7081 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7082 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7084 [Ralf S. Engelschall]
7086 *) Fix the generation of two part addresses in perl.
7087 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7089 *) Add config entry for Linux on MIPS.
7090 [John Tobey <jtobey@channel1.com>]
7092 *) Make links whenever Configure is run, unless we are on Windoze.
7095 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7096 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7100 *) Add a useful kludge to allow package maintainers to specify compiler and
7101 other platforms details on the command line without having to patch the
7102 Configure script everytime: One now can use ``perl Configure
7103 <id>:<details>'', i.e. platform ids are allowed to have details appended
7104 to them (seperated by colons). This is treated as there would be a static
7105 pre-configured entry in Configure's %table under key <id> with value
7106 <details> and ``perl Configure <id>'' is called. So, when you want to
7107 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7108 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7109 now, which overrides the FreeBSD-elf entry on-the-fly.
7110 [Ralf S. Engelschall]
7112 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7115 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7116 on the `perl Configure ...' command line. This way one can compile
7117 OpenSSL libraries with Position Independent Code (PIC) which is needed
7118 for linking it into DSOs.
7119 [Ralf S. Engelschall]
7121 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7125 *) Cleaned up the LICENSE document: The official contact for any license
7126 questions now is the OpenSSL core team under openssl-core@openssl.org.
7127 And add a paragraph about the dual-license situation to make sure people
7128 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7129 to the OpenSSL toolkit.
7130 [Ralf S. Engelschall]
7132 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7133 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7134 Additonally cleaned up the `make links' target: Remove unnecessary
7135 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7136 to speed processing and no longer clutter the display with confusing
7137 stuff. Instead only the actually done links are displayed.
7138 [Ralf S. Engelschall]
7140 *) Permit null encryption ciphersuites, used for authentication only. It used
7141 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7142 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7146 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7147 signed attributes when verifying signatures (this would break them),
7148 the detached data encoding was wrong and public keys obtained using
7149 X509_get_pubkey() weren't freed.
7152 *) Add text documentation for the BUFFER functions. Also added a work around
7153 to a Win95 console bug. This was triggered by the password read stuff: the
7154 last character typed gets carried over to the next fread(). If you were
7155 generating a new cert request using 'req' for example then the last
7156 character of the passphrase would be CR which would then enter the first
7160 *) Added the new `Includes OpenSSL Cryptography Software' button as
7161 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7162 button and can be used by applications based on OpenSSL to show the
7163 relationship to the OpenSSL project.
7164 [Ralf S. Engelschall]
7166 *) Remove confusing variables in function signatures in files
7167 ssl/ssl_lib.c and ssl/ssl.h.
7168 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7170 *) Don't install bss_file.c under PREFIX/include/
7171 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7173 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7174 functions that return function pointers and has support for NT specific
7175 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7176 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7177 unsigned to signed types: this was killing the Win32 compile.
7180 *) Add new certificate file to stack functions,
7181 SSL_add_dir_cert_subjects_to_stack() and
7182 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7183 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7184 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7185 This means that Apache-SSL and similar packages don't have to mess around
7186 to add as many CAs as they want to the preferred list.
7189 *) Experiment with doxygen documentation. Currently only partially applied to
7191 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7192 openssl.doxy as the configuration file.
7195 *) Get rid of remaining C++-style comments which strict C compilers hate.
7196 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7198 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7199 compiled in by default: it has problems with large keys.
7202 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7203 DH private keys and/or callback functions which directly correspond to
7204 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7205 is needed for applications which have to configure certificates on a
7206 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7208 For the RSA certificate situation is makes no difference, but
7209 for the DSA certificate situation this fixes the "no shared cipher"
7210 problem where the OpenSSL cipher selection procedure failed because the
7211 temporary keys were not overtaken from the context and the API provided
7212 no way to reconfigure them.
7213 The new functions now let applications reconfigure the stuff and they
7214 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7215 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7216 non-public-API function ssl_cert_instantiate() is used as a helper
7217 function and also to reduce code redundancy inside ssl_rsa.c.
7218 [Ralf S. Engelschall]
7220 *) Move s_server -dcert and -dkey options out of the undocumented feature
7221 area because they are useful for the DSA situation and should be
7222 recognized by the users.
7223 [Ralf S. Engelschall]
7225 *) Fix the cipher decision scheme for export ciphers: the export bits are
7226 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7227 SSL_EXP_MASK. So, the original variable has to be used instead of the
7228 already masked variable.
7229 [Richard Levitte <levitte@stacken.kth.se>]
7231 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7232 [Richard Levitte <levitte@stacken.kth.se>]
7234 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7235 from `int' to `unsigned int' because it's a length and initialized by
7236 EVP_DigestFinal() which expects an `unsigned int *'.
7237 [Richard Levitte <levitte@stacken.kth.se>]
7239 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7240 script. Instead use the usual Shell->Perl transition trick.
7241 [Ralf S. Engelschall]
7243 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7244 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7245 -noout -modulus' as it's already the case for `openssl rsa -noout
7246 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7247 currently the public key is printed (a decision which was already done by
7248 `openssl dsa -modulus' in the past) which serves a similar purpose.
7249 Additionally the NO_RSA no longer completely removes the whole -modulus
7250 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7252 [Ralf S. Engelschall]
7254 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7255 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7256 [Arne Ansper <arne@ats.cyber.ee>]
7258 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7259 to be added. Now both 'req' and 'ca' can use new objects defined in the
7263 *) Add cool BIO that does syslog (or event log on NT).
7264 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7266 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7267 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7268 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7269 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7272 *) Add preliminary config info for new extension code.
7275 *) Make RSA_NO_PADDING really use no padding.
7276 [Ulf Moeller <ulf@fitug.de>]
7278 *) Generate errors when private/public key check is done.
7281 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7282 for some CRL extensions and new objects added.
7285 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7286 key usage extension and fuller support for authority key id.
7289 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7290 padding method for RSA, which is recommended for new applications in PKCS
7291 #1 v2.0 (RFC 2437, October 1998).
7292 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7293 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7294 against Bleichbacher's attack on RSA.
7295 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7298 *) Updates to the new SSL compression code
7299 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7301 *) Fix so that the version number in the master secret, when passed
7302 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7303 (because the server will not accept higher), that the version number
7304 is 0x03,0x01, not 0x03,0x00
7305 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7307 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7308 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7309 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7312 *) Support for RAW extensions where an arbitrary extension can be
7313 created by including its DER encoding. See apps/openssl.cnf for
7317 *) Make sure latest Perl versions don't interpret some generated C array
7318 code as Perl array code in the crypto/err/err_genc.pl script.
7319 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7321 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7322 not many people have the assembler. Various Win32 compilation fixes and
7323 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7327 *) Modify configure script 'Configure' to automatically create crypto/date.h
7328 file under Win32 and also build pem.h from pem.org. New script
7329 util/mkfiles.pl to create the MINFO file on environments that can't do a
7330 'make files': perl util/mkfiles.pl >MINFO should work.
7333 *) Major rework of DES function declarations, in the pursuit of correctness
7334 and purity. As a result, many evil casts evaporated, and some weirdness,
7335 too. You may find this causes warnings in your code. Zapping your evil
7336 casts will probably fix them. Mostly.
7339 *) Fix for a typo in asn1.h. Bug fix to object creation script
7340 obj_dat.pl. It considered a zero in an object definition to mean
7341 "end of object": none of the objects in objects.h have any zeros
7342 so it wasn't spotted.
7343 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7345 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7346 Masking (CBCM). In the absence of test vectors, the best I have been able
7347 to do is check that the decrypt undoes the encrypt, so far. Send me test
7348 vectors if you have them.
7351 *) Correct calculation of key length for export ciphers (too much space was
7352 allocated for null ciphers). This has not been tested!
7355 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7356 message is now correct (it understands "crypto" and "ssl" on its
7357 command line). There is also now an "update" option. This will update
7358 the util/ssleay.num and util/libeay.num files with any new functions.
7360 perl util/mkdef.pl crypto ssl update
7361 it will update them.
7364 *) Overhauled the Perl interface (perl/*):
7365 - ported BN stuff to OpenSSL's different BN library
7366 - made the perl/ source tree CVS-aware
7367 - renamed the package from SSLeay to OpenSSL (the files still contain
7368 their history because I've copied them in the repository)
7369 - removed obsolete files (the test scripts will be replaced
7370 by better Test::Harness variants in the future)
7371 [Ralf S. Engelschall]
7373 *) First cut for a very conservative source tree cleanup:
7374 1. merge various obsolete readme texts into doc/ssleay.txt
7375 where we collect the old documents and readme texts.
7376 2. remove the first part of files where I'm already sure that we no
7377 longer need them because of three reasons: either they are just temporary
7378 files which were left by Eric or they are preserved original files where
7379 I've verified that the diff is also available in the CVS via "cvs diff
7380 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7381 the crypto/md/ stuff).
7382 [Ralf S. Engelschall]
7384 *) More extension code. Incomplete support for subject and issuer alt
7385 name, issuer and authority key id. Change the i2v function parameters
7386 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7387 what that's for :-) Fix to ASN1 macro which messed up
7388 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7391 *) Preliminary support for ENUMERATED type. This is largely copied from the
7395 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7396 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7398 *) Make sure `make rehash' target really finds the `openssl' program.
7399 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7401 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7402 like to hear about it if this slows down other processors.
7405 *) Add CygWin32 platform information to Configure script.
7406 [Alan Batie <batie@aahz.jf.intel.com>]
7408 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7409 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7411 *) New program nseq to manipulate netscape certificate sequences
7414 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7418 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7419 but the BN code had some problems that would cause failures when
7420 doing certificate verification and some other functions.
7421 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7423 *) Add ASN1 and PEM code to support netscape certificate sequences.
7426 *) Add ASN1 and PEM code to support netscape certificate sequences.
7429 *) Add several PKIX and private extended key usage OIDs.
7432 *) Modify the 'ca' program to handle the new extension code. Modify
7433 openssl.cnf for new extension format, add comments.
7436 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7437 and add a sample to openssl.cnf so req -x509 now adds appropriate
7441 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7442 error code, add initial support to X509_print() and x509 application.
7445 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7446 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7447 stuff is currently isolated and isn't even compiled yet.
7450 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7451 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7452 Removed the versions check from X509 routines when loading extensions:
7453 this allows certain broken certificates that don't set the version
7454 properly to be processed.
7457 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7458 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7459 can still be regenerated with "make depend".
7462 *) Spelling mistake in C version of CAST-128.
7463 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7465 *) Changes to the error generation code. The perl script err-code.pl
7466 now reads in the old error codes and retains the old numbers, only
7467 adding new ones if necessary. It also only changes the .err files if new
7468 codes are added. The makefiles have been modified to only insert errors
7469 when needed (to avoid needlessly modifying header files). This is done
7470 by only inserting errors if the .err file is newer than the auto generated
7471 C file. To rebuild all the error codes from scratch (the old behaviour)
7472 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7473 or delete all the .err files.
7476 *) CAST-128 was incorrectly implemented for short keys. The C version has
7477 been fixed, but is untested. The assembler versions are also fixed, but
7478 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7479 to regenerate it if needed.
7480 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7481 Hagino <itojun@kame.net>]
7483 *) File was opened incorrectly in randfile.c.
7484 [Ulf Möller <ulf@fitug.de>]
7486 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7487 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7488 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7489 al: it's just almost always a UTCTime. Note this patch adds new error
7490 codes so do a "make errors" if there are problems.
7493 *) Correct Linux 1 recognition in config.
7494 [Ulf Möller <ulf@fitug.de>]
7496 *) Remove pointless MD5 hash when using DSA keys in ca.
7497 [Anonymous <nobody@replay.com>]
7499 *) Generate an error if given an empty string as a cert directory. Also
7500 generate an error if handed NULL (previously returned 0 to indicate an
7501 error, but didn't set one).
7502 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7504 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7507 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7508 parameters. This was causing a warning which killed off the Win32 compile.
7511 *) Remove C++ style comments from crypto/bn/bn_local.h.
7512 [Neil Costigan <neil.costigan@celocom.com>]
7514 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7515 based on a text string, looking up short and long names and finally
7516 "dot" format. The "dot" format stuff didn't work. Added new function
7517 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
7518 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
7519 OID is not part of the table.
7522 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
7523 X509_LOOKUP_by_alias().
7526 *) Sort openssl functions by name.
7529 *) Get the gendsa program working (hopefully) and add it to app list. Remove
7530 encryption from sample DSA keys (in case anyone is interested the password
7534 *) Make _all_ *_free functions accept a NULL pointer.
7535 [Frans Heymans <fheymans@isaserver.be>]
7537 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
7539 [Anonymous <nobody@replay.com>]
7541 *) s_server should send the CAfile as acceptable CAs, not its own cert.
7542 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7544 *) Don't blow it for numeric -newkey arguments to apps/req.
7545 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7547 *) Temp key "for export" tests were wrong in s3_srvr.c.
7548 [Anonymous <nobody@replay.com>]
7550 *) Add prototype for temp key callback functions
7551 SSL_CTX_set_tmp_{rsa,dh}_callback().
7554 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
7555 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
7558 *) X509_name_add_entry() freed the wrong thing after an error.
7559 [Arne Ansper <arne@ats.cyber.ee>]
7561 *) rsa_eay.c would attempt to free a NULL context.
7562 [Arne Ansper <arne@ats.cyber.ee>]
7564 *) BIO_s_socket() had a broken should_retry() on Windoze.
7565 [Arne Ansper <arne@ats.cyber.ee>]
7567 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
7568 [Arne Ansper <arne@ats.cyber.ee>]
7570 *) Make sure the already existing X509_STORE->depth variable is initialized
7571 in X509_STORE_new(), but document the fact that this variable is still
7572 unused in the certificate verification process.
7573 [Ralf S. Engelschall]
7575 *) Fix the various library and apps files to free up pkeys obtained from
7576 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
7579 *) Fix reference counting in X509_PUBKEY_get(). This makes
7580 demos/maurice/example2.c work, amongst others, probably.
7581 [Steve Henson and Ben Laurie]
7583 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
7584 `openssl' and second, the shortcut symlinks for the `openssl <command>'
7585 are no longer created. This way we have a single and consistent command
7586 line interface `openssl <command>', similar to `cvs <command>'.
7587 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
7589 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
7590 BIT STRING wrapper always have zero unused bits.
7593 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
7596 *) Make the top-level INSTALL documentation easier to understand.
7599 *) Makefiles updated to exit if an error occurs in a sub-directory
7600 make (including if user presses ^C) [Paul Sutton]
7602 *) Make Montgomery context stuff explicit in RSA data structure.
7605 *) Fix build order of pem and err to allow for generated pem.h.
7608 *) Fix renumbering bug in X509_NAME_delete_entry().
7611 *) Enhanced the err-ins.pl script so it makes the error library number
7612 global and can add a library name. This is needed for external ASN1 and
7613 other error libraries.
7616 *) Fixed sk_insert which never worked properly.
7619 *) Fix ASN1 macros so they can handle indefinite length construted
7620 EXPLICIT tags. Some non standard certificates use these: they can now
7624 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
7625 into a single doc/ssleay.txt bundle. This way the information is still
7626 preserved but no longer messes up this directory. Now it's new room for
7627 the new set of documenation files.
7628 [Ralf S. Engelschall]
7630 *) SETs were incorrectly DER encoded. This was a major pain, because they
7631 shared code with SEQUENCEs, which aren't coded the same. This means that
7632 almost everything to do with SETs or SEQUENCEs has either changed name or
7633 number of arguments.
7634 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
7636 *) Fix test data to work with the above.
7639 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
7640 was already fixed by Eric for 0.9.1 it seems.
7641 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
7643 *) Autodetect FreeBSD3.
7646 *) Fix various bugs in Configure. This affects the following platforms:
7650 unixware-2.0-pentium
7654 *) Eliminate generated files from CVS. Reorder tests to regenerate files
7655 before they are needed.
7658 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
7662 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
7664 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
7665 changed SSLeay to OpenSSL in version strings.
7666 [Ralf S. Engelschall]
7668 *) Some fixups to the top-level documents.
7671 *) Fixed the nasty bug where rsaref.h was not found under compile-time
7672 because the symlink to include/ was missing.
7673 [Ralf S. Engelschall]
7675 *) Incorporated the popular no-RSA/DSA-only patches
7676 which allow to compile a RSA-free SSLeay.
7677 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
7679 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
7680 when "ssleay" is still not found.
7681 [Ralf S. Engelschall]
7683 *) Added more platforms to Configure: Cray T3E, HPUX 11,
7684 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
7686 *) Updated the README file.
7687 [Ralf S. Engelschall]
7689 *) Added various .cvsignore files in the CVS repository subdirs
7690 to make a "cvs update" really silent.
7691 [Ralf S. Engelschall]
7693 *) Recompiled the error-definition header files and added
7694 missing symbols to the Win32 linker tables.
7695 [Ralf S. Engelschall]
7697 *) Cleaned up the top-level documents;
7698 o new files: CHANGES and LICENSE
7699 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
7700 o merged COPYRIGHT into LICENSE
7701 o removed obsolete TODO file
7702 o renamed MICROSOFT to INSTALL.W32
7703 [Ralf S. Engelschall]
7705 *) Removed dummy files from the 0.9.1b source tree:
7706 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
7707 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
7708 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
7709 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
7710 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
7711 [Ralf S. Engelschall]
7713 *) Added various platform portability fixes.
7716 *) The Genesis of the OpenSSL rpject:
7717 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
7718 Young and Tim J. Hudson created while they were working for C2Net until
7720 [The OpenSSL Project]
7723 Changes between 0.9.0b and 0.9.1b [not released]
7725 *) Updated a few CA certificates under certs/
7728 *) Changed some BIGNUM api stuff.
7731 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
7732 DGUX x86, Linux Alpha, etc.
7735 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
7736 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
7740 *) Add -strparse option to asn1pars program which parses nested
7742 [Dr Stephen Henson <shenson@bigfoot.com>]
7744 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
7747 *) DSA fix for "ca" program.
7750 *) Added "-genkey" option to "dsaparam" program.
7753 *) Added RIPE MD160 (rmd160) message digest.
7756 *) Added -a (all) option to "ssleay version" command.
7759 *) Added PLATFORM define which is the id given to Configure.
7762 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
7765 *) Extended the ASN.1 parser routines.
7768 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
7771 *) Added a BN_CTX to the BN library.
7774 *) Fixed the weak key values in DES library
7777 *) Changed API in EVP library for cipher aliases.
7780 *) Added support for RC2/64bit cipher.
7783 *) Converted the lhash library to the crypto/mem.c functions.
7786 *) Added more recognized ASN.1 object ids.
7789 *) Added more RSA padding checks for SSL/TLS.
7792 *) Added BIO proxy/filter functionality.
7795 *) Added extra_certs to SSL_CTX which can be used
7796 send extra CA certificates to the client in the CA cert chain sending
7797 process. It can be configured with SSL_CTX_add_extra_chain_cert().
7800 *) Now Fortezza is denied in the authentication phase because
7801 this is key exchange mechanism is not supported by SSLeay at all.
7804 *) Additional PKCS1 checks.
7807 *) Support the string "TLSv1" for all TLS v1 ciphers.
7810 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
7811 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
7814 *) Fixed a few memory leaks.
7817 *) Fixed various code and comment typos.
7820 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
7821 bytes sent in the client random.
7822 [Edward Bishop <ebishop@spyglass.com>]