5 Changes between 0.9.8b and 0.9.9 [xx XXX xxxx]
7 *) Update PKCS#7 enveloped data routines to use new API. This is now
8 supported by any public key method supporting the encrypt operation. A
9 ctrl is added to allow the public key algorithm to examine or modify
10 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
14 *) Add a ctrl to asn1 method to allow a public key algorithm to express
15 a default digest type to use. In most cases this will be SHA1 but some
16 algorithms (such as GOST) need to specify an alternative digest. The
17 return value indicates how strong the prefernce is 1 means optional and
18 2 is mandatory (that is it is the only supported type). Modify
19 ASN1_item_sign() to accept a NULL digest argument to indicate it should
20 use the default md. Update openssl utilities to use the default digest
21 type for signing if it is not explicitly indicated.
24 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
25 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
26 signing method from the key type. This effectively removes the link
27 between digests and public key types.
30 *) Add an OID cross reference table and utility functions. Its purpose is to
31 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
32 rsaEncryption. This will allow some of the algorithm specific hackery
33 needed to use the correct OID to be removed.
36 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
37 structures for PKCS7_sign(). They are now set up by the relevant public
41 *) Add provisional EC pkey method with support for ECDSA and ECDH.
44 *) Add support for key derivation (agreement) in the API, DH method and
48 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
49 public and private key formats. As a side effect these add additional
50 command line functionality not previously available: DSA signatures can be
51 generated and verified using pkeyutl and DH key support and generation in
56 [Oliver Tappe <zooey@hirschkaefer.de>]
58 *) New make target "install_html_docs" installs HTML renditions of the
60 [Oliver Tappe <zooey@hirschkaefer.de>]
62 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
63 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
64 support key and parameter generation and add initial key generation
65 functionality for RSA.
68 *) Add functions for main EVP_PKEY_method operations. The undocumented
69 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
70 EVP_PKEY_{encrypt,decrypt}_old.
73 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
74 key API, doesn't do much yet.
77 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
78 public key algorithms. New option to openssl utility:
79 "list-public-key-algorithms" to print out info.
82 *) Implement the Supported Elliptic Curves Extension for
83 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
86 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
87 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
90 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
91 utilities such as rsa, dsa, dsaparam etc except they process any key
95 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
96 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
97 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
101 *) Initial support for pluggable public key ASN1.
102 De-spaghettify the public key ASN1 handling. Move public and private
103 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
104 algorithm specific handling to a single module within the relevant
105 algorithm directory. Add functions to allow (near) opaque processing
106 of public and private key structures.
109 *) Implement the Supported Point Formats Extension for
110 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
113 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
114 for the psk identity [hint] and the psk callback functions to the
115 SSL_SESSION, SSL and SSL_CTX structure.
118 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
122 SSL_CTX_use_psk_identity_hint
123 SSL_get_psk_identity_hint
125 SSL_use_psk_identity_hint
127 [Mika Kousa and Pasi Eronen of Nokia Corporation]
129 *) Add RFC 3161 compliant time stamp request creation, response generation
130 and response verification functionality.
131 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
133 *) Add initial support for TLS extensions, specifically for the server_name
134 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
135 have new members for a host name. The SSL data structure has an
136 additional member SSL_CTX *initial_ctx so that new sessions can be
137 stored in that context to allow for session resumption, even after the
138 SSL has been switched to a new SSL_CTX in reaction to a client's
139 server_name extension.
141 New functions (subject to change):
144 SSL_get_servername_type()
147 New CTRL codes and macros (subject to change):
149 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
150 - SSL_CTX_set_tlsext_servername_callback()
151 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
152 - SSL_CTX_set_tlsext_servername_arg()
153 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_hostname()
155 openssl s_client has a new '-servername ...' option.
157 openssl s_server has new options '-servername_host ...', '-cert2 ...',
158 '-key2 ...', '-servername_fatal' (subject to change). This allows
159 testing the HostName extension for a specific single host name ('-cert'
160 and '-key' remain fallbacks for handshakes without HostName
161 negotiation). If the unrecogninzed_name alert has to be sent, this by
162 default is a warning; it becomes fatal with the '-servername_fatal'
165 [Peter Sylvester, Remy Allais, Christophe Renou]
167 *) Whirlpool hash implementation is added.
170 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
171 bn(64,32). Because of instruction set limitations it doesn't have
172 any negative impact on performance. This was done mostly in order
173 to make it possible to share assembler modules, such as bn_mul_mont
174 implementations, between 32- and 64-bit builds without hassle.
177 *) Disable rogue ciphersuites:
179 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
180 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
181 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
183 The latter two were purportedly from
184 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
187 Other ciphersuites from draft-ietf-tls-56-bit-ciphersuites-01.txt
188 remain enabled for now, but are just as unofficial, and the ID
189 has long expired; these will probably disappear soon.
192 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
193 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
197 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
198 dedicated Montgomery multiplication procedure, is introduced.
199 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
200 "64-bit" performance on certain 32-bit targets.
203 *) New option SSL_OP_NO_COMP to disable use of compression selectively
204 in SSL structures. New SSL ctrl to set maximum send fragment size.
205 Save memory by seeting the I/O buffer sizes dynamically instead of
206 using the maximum available value.
209 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
210 in addition to the text details.
213 *) Very, very preliminary EXPERIMENTAL support for printing of general
214 ASN1 structures. This currently produces rather ugly output and doesn't
215 handle several customised structures at all.
218 *) Integrated support for PVK file format and some related formats such
219 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
220 these in the 'rsa' and 'dsa' utilities.
223 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
226 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
227 place for the (very old) "NETSCAPE" format certificates which are now
228 handled using new ASN1 code equivalents.
231 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
232 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
233 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
236 *) Modify CRL distribution points extension code to print out previously
237 unsupported fields. Enhance extension setting code to allow setting of
241 *) Add print and set support for Issuing Distribution Point CRL extension.
244 Changes between 0.9.8b and 0.9.8c [xx XXX xxxx]
246 *) Disable the padding bug check when compression is in use. The padding
247 bug check assumes the first packet is of even length, this is not
248 necessarily true if compresssion is enabled and can result in false
249 positives causing handshake failure. The actual bug test is ancient
250 code so it is hoped that implementations will either have fixed it by
251 now or any which still have the bug do not support compression.
254 Changes between 0.9.8a and 0.9.8b [04 May 2006]
256 *) When applying a cipher rule check to see if string match is an explicit
257 cipher suite and only match that one cipher suite if it is.
260 *) Link in manifests for VC++ if needed.
261 [Austin Ziegler <halostatue@gmail.com>]
263 *) Update support for ECC-based TLS ciphersuites according to
264 draft-ietf-tls-ecc-12.txt with proposed changes (but without
265 TLS extensions, which are supported starting with the 0.9.9
266 branch, not in the OpenSSL 0.9.8 branch).
269 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
270 opaque EVP_CIPHER_CTX handling.
273 *) Fixes and enhancements to zlib compression code. We now only use
274 "zlib1.dll" and use the default __cdecl calling convention on Win32
275 to conform with the standards mentioned here:
276 http://www.zlib.net/DLL_FAQ.txt
277 Static zlib linking now works on Windows and the new --with-zlib-include
278 --with-zlib-lib options to Configure can be used to supply the location
279 of the headers and library. Gracefully handle case where zlib library
283 *) Several fixes and enhancements to the OID generation code. The old code
284 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
285 handle numbers larger than ULONG_MAX, truncated printing and had a
286 non standard OBJ_obj2txt() behaviour.
289 *) Add support for building of engines under engine/ as shared libraries
290 under VC++ build system.
293 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
294 Hopefully, we will not see any false combination of paths any more.
297 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
299 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
300 (part of SSL_OP_ALL). This option used to disable the
301 countermeasure against man-in-the-middle protocol-version
302 rollback in the SSL 2.0 server implementation, which is a bad
303 idea. (CVE-2005-2969)
305 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
306 for Information Security, National Institute of Advanced Industrial
307 Science and Technology [AIST], Japan)]
309 *) Add two function to clear and return the verify parameter flags.
312 *) Keep cipherlists sorted in the source instead of sorting them at
313 runtime, thus removing the need for a lock.
316 *) Avoid some small subgroup attacks in Diffie-Hellman.
317 [Nick Mathewson and Ben Laurie]
319 *) Add functions for well-known primes.
322 *) Extended Windows CE support.
323 [Satoshi Nakamura and Andy Polyakov]
325 *) Initialize SSL_METHOD structures at compile time instead of during
326 runtime, thus removing the need for a lock.
329 *) Make PKCS7_decrypt() work even if no certificate is supplied by
330 attempting to decrypt each encrypted key in turn. Add support to
334 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
336 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
339 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
340 key into the same file any more.
343 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
346 *) Add -utf8 command line and config file option to 'ca'.
347 [Stefan <stf@udoma.org]
349 *) Removed the macro des_crypt(), as it seems to conflict with some
350 libraries. Use DES_crypt().
353 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
354 involves renaming the source and generated shared-libs for
355 both. The engines will accept the corrected or legacy ids
356 ('ncipher' and '4758_cca' respectively) when binding. NB,
357 this only applies when building 'shared'.
358 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
360 *) Add attribute functions to EVP_PKEY structure. Modify
361 PKCS12_create() to recognize a CSP name attribute and
362 use it. Make -CSP option work again in pkcs12 utility.
365 *) Add new functionality to the bn blinding code:
366 - automatic re-creation of the BN_BLINDING parameters after
367 a fixed number of uses (currently 32)
368 - add new function for parameter creation
369 - introduce flags to control the update behaviour of the
370 BN_BLINDING parameters
371 - hide BN_BLINDING structure
372 Add a second BN_BLINDING slot to the RSA structure to improve
373 performance when a single RSA object is shared among several
377 *) Add support for DTLS.
378 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
380 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
381 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
384 *) Remove buggy and incompletet DH cert support from
385 ssl/ssl_rsa.c and ssl/s3_both.c
388 *) Use SHA-1 instead of MD5 as the default digest algorithm for
389 the apps/openssl applications.
392 *) Compile clean with "-Wall -Wmissing-prototypes
393 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
394 DEBUG_SAFESTACK must also be set.
397 *) Change ./Configure so that certain algorithms can be disabled by default.
398 The new counterpiece to "no-xxx" is "enable-xxx".
400 The patented RC5 and MDC2 algorithms will now be disabled unless
401 "enable-rc5" and "enable-mdc2", respectively, are specified.
403 (IDEA remains enabled despite being patented. This is because IDEA
404 is frequently required for interoperability, and there is no license
405 fee for non-commercial use. As before, "no-idea" can be used to
406 avoid this algorithm.)
410 *) Add processing of proxy certificates (see RFC 3820). This work was
411 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
412 EGEE (Enabling Grids for E-science in Europe).
415 *) RC4 performance overhaul on modern architectures/implementations, such
416 as Intel P4, IA-64 and AMD64.
419 *) New utility extract-section.pl. This can be used specify an alternative
420 section number in a pod file instead of having to treat each file as
421 a separate case in Makefile. This can be done by adding two lines to the
424 =for comment openssl_section:XXX
426 The blank line is mandatory.
430 *) New arguments -certform, -keyform and -pass for s_client and s_server
431 to allow alternative format key and certificate files and passphrase
435 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
436 update associated structures and add various utility functions.
438 Add new policy related verify parameters, include policy checking in
439 standard verify code. Enhance 'smime' application with extra parameters
440 to support policy checking and print out.
443 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
444 Nehemiah processors. These extensions support AES encryption in hardware
445 as well as RNG (though RNG support is currently disabled).
446 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
448 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
451 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
452 [Andy Polyakov and a number of other people]
454 *) Improved PowerPC platform support. Most notably BIGNUM assembler
455 implementation contributed by IBM.
456 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
458 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
459 exponent rather than 'unsigned long'. There is a corresponding change to
460 the new 'rsa_keygen' element of the RSA_METHOD structure.
461 [Jelte Jansen, Geoff Thorpe]
463 *) Functionality for creating the initial serial number file is now
464 moved from CA.pl to the 'ca' utility with a new option -create_serial.
466 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
467 number file to 1, which is bound to cause problems. To avoid
468 the problems while respecting compatibility between different 0.9.7
469 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
470 CA.pl for serial number initialization. With the new release 0.9.8,
471 we can fix the problem directly in the 'ca' utility.)
474 *) Reduced header interdepencies by declaring more opaque objects in
475 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
476 give fewer recursive includes, which could break lazy source code - so
477 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
478 developers should define this symbol when building and using openssl to
479 ensure they track the recommended behaviour, interfaces, [etc], but
480 backwards-compatible behaviour prevails when this isn't defined.
483 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
486 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
487 This will generate a random key of the appropriate length based on the
488 cipher context. The EVP_CIPHER can provide its own random key generation
489 routine to support keys of a specific form. This is used in the des and
490 3des routines to generate a key of the correct parity. Update S/MIME
491 code to use new functions and hence generate correct parity DES keys.
492 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
493 valid (weak or incorrect parity).
496 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
497 as looking them up. This is useful when the verified structure may contain
498 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
499 present unless the new PKCS7_NO_CRL flag is asserted.
502 *) Extend ASN1 oid configuration module. It now additionally accepts the
505 shortName = some long name, 1.2.3.4
508 *) Reimplemented the BN_CTX implementation. There is now no more static
509 limitation on the number of variables it can handle nor the depth of the
510 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
511 information can now expand as required, and rather than having a single
512 static array of bignums, BN_CTX now uses a linked-list of such arrays
513 allowing it to expand on demand whilst maintaining the usefulness of
517 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
518 to allow all RSA operations to function using a single BN_CTX.
521 *) Preliminary support for certificate policy evaluation and checking. This
522 is initially intended to pass the tests outlined in "Conformance Testing
523 of Relying Party Client Certificate Path Processing Logic" v1.07.
526 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
527 remained unused and not that useful. A variety of other little bignum
528 tweaks and fixes have also been made continuing on from the audit (see
532 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
533 associated ASN1, EVP and SSL functions and old ASN1 macros.
536 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
537 and this should never fail. So the return value from the use of
538 BN_set_word() (which can fail due to needless expansion) is now deprecated;
539 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
542 *) BN_CTX_get() should return zero-valued bignums, providing the same
543 initialised value as BN_new().
544 [Geoff Thorpe, suggested by Ulf Möller]
546 *) Support for inhibitAnyPolicy certificate extension.
549 *) An audit of the BIGNUM code is underway, for which debugging code is
550 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
551 is considered valid when processing BIGNUMs, and causes execution to
552 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
553 further steps are taken to deliberately pollute unused data in BIGNUM
554 structures to try and expose faulty code further on. For now, openssl will
555 (in its default mode of operation) continue to tolerate the inconsistent
556 forms that it has tolerated in the past, but authors and packagers should
557 consider trying openssl and their own applications when compiled with
558 these debugging symbols defined. It will help highlight potential bugs in
559 their own code, and will improve the test coverage for OpenSSL itself. At
560 some point, these tighter rules will become openssl's default to improve
561 maintainability, though the assert()s and other overheads will remain only
562 in debugging configurations. See bn.h for more details.
563 [Geoff Thorpe, Nils Larsch, Ulf Möller]
565 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
566 that can only be obtained through BN_CTX_new() (which implicitly
567 initialises it). The presence of this function only made it possible
568 to overwrite an existing structure (and cause memory leaks).
571 *) Because of the callback-based approach for implementing LHASH as a
572 template type, lh_insert() adds opaque objects to hash-tables and
573 lh_doall() or lh_doall_arg() are typically used with a destructor callback
574 to clean up those corresponding objects before destroying the hash table
575 (and losing the object pointers). So some over-zealous constifications in
576 LHASH have been relaxed so that lh_insert() does not take (nor store) the
577 objects as "const" and the lh_doall[_arg] callback wrappers are not
578 prototyped to have "const" restrictions on the object pointers they are
579 given (and so aren't required to cast them away any more).
582 *) The tmdiff.h API was so ugly and minimal that our own timing utility
583 (speed) prefers to use its own implementation. The two implementations
584 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
585 its object type properly exposed (MS_TM) instead of casting to/from "char
586 *". This may still change yet if someone realises MS_TM and "ms_time_***"
587 aren't necessarily the greatest nomenclatures - but this is what was used
588 internally to the implementation so I've used that for now.
591 *) Ensure that deprecated functions do not get compiled when
592 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
593 the self-tests were still using deprecated key-generation functions so
594 these have been updated also.
597 *) Reorganise PKCS#7 code to separate the digest location functionality
598 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
599 New function PKCS7_set_digest() to set the digest type for PKCS#7
600 digestedData type. Add additional code to correctly generate the
601 digestedData type and add support for this type in PKCS7 initialization
605 *) New function PKCS7_set0_type_other() this initializes a PKCS7
606 structure of type "other".
609 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
610 sure the loop does correctly stop and breaking ("division by zero")
611 modulus operations are not performed. The (pre-generated) prime
612 table crypto/bn/bn_prime.h was already correct, but it could not be
613 re-generated on some platforms because of the "division by zero"
614 situation in the script.
615 [Ralf S. Engelschall]
617 *) Update support for ECC-based TLS ciphersuites according to
618 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
619 SHA-1 now is only used for "small" curves (where the
620 representation of a field element takes up to 24 bytes); for
621 larger curves, the field element resulting from ECDH is directly
622 used as premaster secret.
623 [Douglas Stebila (Sun Microsystems Laboratories)]
625 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
626 curve secp160r1 to the tests.
627 [Douglas Stebila (Sun Microsystems Laboratories)]
629 *) Add the possibility to load symbols globally with DSO.
630 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
632 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
633 control of the error stack.
636 *) Add support for STORE in ENGINE.
639 *) Add the STORE type. The intention is to provide a common interface
640 to certificate and key stores, be they simple file-based stores, or
641 HSM-type store, or LDAP stores, or...
642 NOTE: The code is currently UNTESTED and isn't really used anywhere.
645 *) Add a generic structure called OPENSSL_ITEM. This can be used to
646 pass a list of arguments to any function as well as provide a way
647 for a function to pass data back to the caller.
650 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
651 works like BUF_strdup() but can be used to duplicate a portion of
652 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
656 *) Add the function sk_find_ex() which works like sk_find(), but will
657 return an index to an element even if an exact match couldn't be
658 found. The index is guaranteed to point at the element where the
659 searched-for key would be inserted to preserve sorting order.
662 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
663 takes an extra flags argument for optional functionality. Currently,
664 the following flags are defined:
666 OBJ_BSEARCH_VALUE_ON_NOMATCH
667 This one gets OBJ_bsearch_ex() to return a pointer to the first
668 element where the comparing function returns a negative or zero
671 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
672 This one gets OBJ_bsearch_ex() to return a pointer to the first
673 element where the comparing function returns zero. This is useful
674 if there are more than one element where the comparing function
678 *) Make it possible to create self-signed certificates with 'openssl ca'
679 in such a way that the self-signed certificate becomes part of the
680 CA database and uses the same mechanisms for serial number generation
681 as all other certificate signing. The new flag '-selfsign' enables
682 this functionality. Adapt CA.sh and CA.pl.in.
685 *) Add functionality to check the public key of a certificate request
686 against a given private. This is useful to check that a certificate
687 request can be signed by that key (self-signing).
690 *) Make it possible to have multiple active certificates with the same
691 subject in the CA index file. This is done only if the keyword
692 'unique_subject' is set to 'no' in the main CA section (default
693 if 'CA_default') of the configuration file. The value is saved
694 with the database itself in a separate index attribute file,
695 named like the index file with '.attr' appended to the name.
698 *) Generate muti valued AVAs using '+' notation in config files for
702 *) Support for nameConstraints certificate extension.
705 *) Support for policyConstraints certificate extension.
708 *) Support for policyMappings certificate extension.
711 *) Make sure the default DSA_METHOD implementation only uses its
712 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
713 and change its own handlers to be NULL so as to remove unnecessary
714 indirection. This lets alternative implementations fallback to the
715 default implementation more easily.
718 *) Support for directoryName in GeneralName related extensions
722 *) Make it possible to link applications using Makefile.shared.
723 Make that possible even when linking against static libraries!
726 *) Support for single pass processing for S/MIME signing. This now
727 means that S/MIME signing can be done from a pipe, in addition
728 cleartext signing (multipart/signed type) is effectively streaming
729 and the signed data does not need to be all held in memory.
731 This is done with a new flag PKCS7_STREAM. When this flag is set
732 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
733 is done after the data is output (and digests calculated) in
737 *) Add full support for -rpath/-R, both in shared libraries and
738 applications, at least on the platforms where it's known how
742 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
743 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
744 will now compute a table of multiples of the generator that
745 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
746 faster (notably in the case of a single point multiplication,
748 [Nils Larsch, Bodo Moeller]
750 *) IPv6 support for certificate extensions. The various extensions
751 which use the IP:a.b.c.d can now take IPv6 addresses using the
752 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
756 *) Added an ENGINE that implements RSA by performing private key
757 exponentiations with the GMP library. The conversions to and from
758 GMP's mpz_t format aren't optimised nor are any montgomery forms
759 cached, and on x86 it appears OpenSSL's own performance has caught up.
760 However there are likely to be other architectures where GMP could
761 provide a boost. This ENGINE is not built in by default, but it can be
762 specified at Configure time and should be accompanied by the necessary
763 linker additions, eg;
764 ./config -DOPENSSL_USE_GMP -lgmp
767 *) "openssl engine" will not display ENGINE/DSO load failure errors when
768 testing availability of engines with "-t" - the old behaviour is
769 produced by increasing the feature's verbosity with "-tt".
772 *) ECDSA routines: under certain error conditions uninitialized BN objects
773 could be freed. Solution: make sure initialization is performed early
774 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
778 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
779 and DH_METHOD (eg. by ENGINE implementations) to override the normal
780 software implementations. For DSA and DH, parameter generation can
781 also be overriden by providing the appropriate method callbacks.
784 *) Change the "progress" mechanism used in key-generation and
785 primality testing to functions that take a new BN_GENCB pointer in
786 place of callback/argument pairs. The new API functions have "_ex"
787 postfixes and the older functions are reimplemented as wrappers for
788 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
789 declarations of the old functions to help (graceful) attempts to
790 migrate to the new functions. Also, the new key-generation API
791 functions operate on a caller-supplied key-structure and return
792 success/failure rather than returning a key or NULL - this is to
793 help make "keygen" another member function of RSA_METHOD etc.
795 Example for using the new callback interface:
797 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
801 BN_GENCB_set(&my_cb, my_callback, my_arg);
803 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
804 /* For the meaning of a, b in calls to my_callback(), see the
805 * documentation of the function that calls the callback.
806 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
807 * my_callback should return 1 if it wants BN_is_prime_ex()
808 * to continue, or 0 to stop.
813 *) Change the ZLIB compression method to be stateful, and make it
814 available to TLS with the number defined in
815 draft-ietf-tls-compression-04.txt.
818 *) Add the ASN.1 structures and functions for CertificatePair, which
819 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
821 CertificatePair ::= SEQUENCE {
822 forward [0] Certificate OPTIONAL,
823 reverse [1] Certificate OPTIONAL,
824 -- at least one of the pair shall be present -- }
826 Also implement the PEM functions to read and write certificate
827 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
829 This needed to be defined, mostly for the sake of the LDAP
830 attribute crossCertificatePair, but may prove useful elsewhere as
834 *) Make it possible to inhibit symlinking of shared libraries in
835 Makefile.shared, for Cygwin's sake.
838 *) Extend the BIGNUM API by creating a function
839 void BN_set_negative(BIGNUM *a, int neg);
840 and a macro that behave like
841 int BN_is_negative(const BIGNUM *a);
843 to avoid the need to access 'a->neg' directly in applications.
846 *) Implement fast modular reduction for pseudo-Mersenne primes
847 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
848 EC_GROUP_new_curve_GFp() will now automatically use this
850 [Nils Larsch <nla@trustcenter.de>]
852 *) Add new lock type (CRYPTO_LOCK_BN).
855 *) Change the ENGINE framework to automatically load engines
856 dynamically from specific directories unless they could be
857 found to already be built in or loaded. Move all the
858 current engines except for the cryptodev one to a new
860 The engines in engines/ are built as shared libraries if
861 the "shared" options was given to ./Configure or ./config.
862 Otherwise, they are inserted in libcrypto.a.
863 /usr/local/ssl/engines is the default directory for dynamic
864 engines, but that can be overriden at configure time through
865 the usual use of --prefix and/or --openssldir, and at run
866 time with the environment variable OPENSSL_ENGINES.
867 [Geoff Thorpe and Richard Levitte]
869 *) Add Makefile.shared, a helper makefile to build shared
870 libraries. Addapt Makefile.org.
873 *) Add version info to Win32 DLLs.
874 [Peter 'Luna' Runestig" <peter@runestig.com>]
876 *) Add new 'medium level' PKCS#12 API. Certificates and keys
877 can be added using this API to created arbitrary PKCS#12
878 files while avoiding the low level API.
880 New options to PKCS12_create(), key or cert can be NULL and
881 will then be omitted from the output file. The encryption
882 algorithm NIDs can be set to -1 for no encryption, the mac
883 iteration count can be set to 0 to omit the mac.
885 Enhance pkcs12 utility by making the -nokeys and -nocerts
886 options work when creating a PKCS#12 file. New option -nomac
887 to omit the mac, NONE can be set for an encryption algorithm.
888 New code is modified to use the enhanced PKCS12_create()
889 instead of the low level API.
892 *) Extend ASN1 encoder to support indefinite length constructed
893 encoding. This can output sequences tags and octet strings in
894 this form. Modify pk7_asn1.c to support indefinite length
895 encoding. This is experimental and needs additional code to
896 be useful, such as an ASN1 bio and some enhanced streaming
899 Extend template encode functionality so that tagging is passed
900 down to the template encoder.
903 *) Let 'openssl req' fail if an argument to '-newkey' is not
904 recognized instead of using RSA as a default.
907 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
908 As these are not official, they are not included in "ALL";
909 the "ECCdraft" ciphersuite group alias can be used to select them.
910 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
912 *) Add ECDH engine support.
913 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
915 *) Add ECDH in new directory crypto/ecdh/.
916 [Douglas Stebila (Sun Microsystems Laboratories)]
918 *) Let BN_rand_range() abort with an error after 100 iterations
919 without success (which indicates a broken PRNG).
922 *) Change BN_mod_sqrt() so that it verifies that the input value
923 is really the square of the return value. (Previously,
924 BN_mod_sqrt would show GIGO behaviour.)
927 *) Add named elliptic curves over binary fields from X9.62, SECG,
928 and WAP/WTLS; add OIDs that were still missing.
930 [Sheueling Chang Shantz and Douglas Stebila
931 (Sun Microsystems Laboratories)]
933 *) Extend the EC library for elliptic curves over binary fields
934 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
937 EC_GF2m_simple_method
941 EC_GROUP_new_curve_GF2m
942 EC_GROUP_set_curve_GF2m
943 EC_GROUP_get_curve_GF2m
944 EC_POINT_set_affine_coordinates_GF2m
945 EC_POINT_get_affine_coordinates_GF2m
946 EC_POINT_set_compressed_coordinates_GF2m
948 Point compression for binary fields is disabled by default for
949 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
952 As binary polynomials are represented as BIGNUMs, various members
953 of the EC_GROUP and EC_POINT data structures can be shared
954 between the implementations for prime fields and binary fields;
955 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
956 are essentially identical to their ..._GFp counterparts.
957 (For simplicity, the '..._GFp' prefix has been dropped from
958 various internal method names.)
960 An internal 'field_div' method (similar to 'field_mul' and
961 'field_sqr') has been added; this is used only for binary fields.
963 [Sheueling Chang Shantz and Douglas Stebila
964 (Sun Microsystems Laboratories)]
966 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
967 through methods ('mul', 'precompute_mult').
969 The generic implementations (now internally called 'ec_wNAF_mul'
970 and 'ec_wNAF_precomputed_mult') remain the default if these
971 methods are undefined.
973 [Sheueling Chang Shantz and Douglas Stebila
974 (Sun Microsystems Laboratories)]
976 *) New function EC_GROUP_get_degree, which is defined through
977 EC_METHOD. For curves over prime fields, this returns the bit
978 length of the modulus.
980 [Sheueling Chang Shantz and Douglas Stebila
981 (Sun Microsystems Laboratories)]
983 *) New functions EC_GROUP_dup, EC_POINT_dup.
984 (These simply call ..._new and ..._copy).
986 [Sheueling Chang Shantz and Douglas Stebila
987 (Sun Microsystems Laboratories)]
989 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
990 Polynomials are represented as BIGNUMs (where the sign bit is not
991 used) in the following functions [macros]:
994 BN_GF2m_sub [= BN_GF2m_add]
995 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
996 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
997 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
999 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1000 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1001 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1002 BN_GF2m_cmp [= BN_ucmp]
1004 (Note that only the 'mod' functions are actually for fields GF(2^m).
1005 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1007 For some functions, an the irreducible polynomial defining a
1008 field can be given as an 'unsigned int[]' with strictly
1009 decreasing elements giving the indices of those bits that are set;
1010 i.e., p[] represents the polynomial
1011 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1013 p[0] > p[1] > ... > p[k] = 0.
1014 This applies to the following functions:
1019 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1020 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1022 BN_GF2m_mod_sqrt_arr
1023 BN_GF2m_mod_solve_quad_arr
1027 Conversion can be performed by the following functions:
1032 bntest.c has additional tests for binary polynomial arithmetic.
1034 Two implementations for BN_GF2m_mod_div() are available.
1035 The default algorithm simply uses BN_GF2m_mod_inv() and
1036 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1037 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1038 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1040 [Sheueling Chang Shantz and Douglas Stebila
1041 (Sun Microsystems Laboratories)]
1043 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1044 functionality is disabled at compile-time.
1045 [Douglas Stebila <douglas.stebila@sun.com>]
1047 *) Change default behaviour of 'openssl asn1parse' so that more
1048 information is visible when viewing, e.g., a certificate:
1050 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1051 mode the content of non-printable OCTET STRINGs is output in a
1052 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1053 avoid the appearance of a printable string.
1054 [Nils Larsch <nla@trustcenter.de>]
1056 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1058 EC_GROUP_set_asn1_flag()
1059 EC_GROUP_get_asn1_flag()
1060 EC_GROUP_set_point_conversion_form()
1061 EC_GROUP_get_point_conversion_form()
1062 These control ASN1 encoding details:
1063 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1064 has been set to OPENSSL_EC_NAMED_CURVE.
1065 - Points are encoded in uncompressed form by default; options for
1066 asn1_for are as for point2oct, namely
1067 POINT_CONVERSION_COMPRESSED
1068 POINT_CONVERSION_UNCOMPRESSED
1069 POINT_CONVERSION_HYBRID
1071 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1074 EC_GROUP_get0_seed()
1075 EC_GROUP_get_seed_len()
1076 This is used only for ASN1 purposes (so far).
1077 [Nils Larsch <nla@trustcenter.de>]
1079 *) Add 'field_type' member to EC_METHOD, which holds the NID
1080 of the appropriate field type OID. The new function
1081 EC_METHOD_get_field_type() returns this value.
1082 [Nils Larsch <nla@trustcenter.de>]
1087 EC_POINT_point2hex()
1088 EC_POINT_hex2point()
1089 providing useful interfaces to EC_POINT_point2oct() and
1090 EC_POINT_oct2point().
1091 [Nils Larsch <nla@trustcenter.de>]
1093 *) Change internals of the EC library so that the functions
1094 EC_GROUP_set_generator()
1095 EC_GROUP_get_generator()
1096 EC_GROUP_get_order()
1097 EC_GROUP_get_cofactor()
1098 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1099 to methods, which would lead to unnecessary code duplication when
1100 adding different types of curves.
1101 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1103 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1104 arithmetic, and such that modified wNAFs are generated
1105 (which avoid length expansion in many cases).
1108 *) Add a function EC_GROUP_check_discriminant() (defined via
1109 EC_METHOD) that verifies that the curve discriminant is non-zero.
1111 Add a function EC_GROUP_check() that makes some sanity tests
1112 on a EC_GROUP, its generator and order. This includes
1113 EC_GROUP_check_discriminant().
1114 [Nils Larsch <nla@trustcenter.de>]
1116 *) Add ECDSA in new directory crypto/ecdsa/.
1118 Add applications 'openssl ecparam' and 'openssl ecdsa'
1119 (these are based on 'openssl dsaparam' and 'openssl dsa').
1121 ECDSA support is also included in various other files across the
1122 library. Most notably,
1123 - 'openssl req' now has a '-newkey ecdsa:file' option;
1124 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1125 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1126 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1127 them suitable for ECDSA where domain parameters must be
1128 extracted before the specific public key;
1129 - ECDSA engine support has been added.
1130 [Nils Larsch <nla@trustcenter.de>]
1132 *) Include some named elliptic curves, and add OIDs from X9.62,
1133 SECG, and WAP/WTLS. Each curve can be obtained from the new
1135 EC_GROUP_new_by_curve_name(),
1136 and the list of available named curves can be obtained with
1137 EC_get_builtin_curves().
1138 Also add a 'curve_name' member to EC_GROUP objects, which can be
1140 EC_GROUP_set_curve_name()
1141 EC_GROUP_get_curve_name()
1142 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1144 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1145 was actually never needed) and in BN_mul(). The removal in BN_mul()
1146 required a small change in bn_mul_part_recursive() and the addition
1147 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1148 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1149 bn_sub_words() and bn_add_words() except they take arrays with
1153 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1155 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1156 The value now differs depending on if you build for FIPS or not.
1157 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1158 safely run with a non-FIPSed libcrypto, as it may crash because of
1159 the difference induced by this change.
1162 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1164 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1165 (part of SSL_OP_ALL). This option used to disable the
1166 countermeasure against man-in-the-middle protocol-version
1167 rollback in the SSL 2.0 server implementation, which is a bad
1168 idea. (CVE-2005-2969)
1170 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1171 for Information Security, National Institute of Advanced Industrial
1172 Science and Technology [AIST], Japan)]
1174 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1175 mainly for FIPS compliance and not fully integrated at this stage.
1178 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1179 the exponentiation using a fixed-length exponent. (Otherwise,
1180 the information leaked through timing could expose the secret key
1181 after many signatures; cf. Bleichenbacher's attack on DSA with
1185 *) Make a new fixed-window mod_exp implementation the default for
1186 RSA, DSA, and DH private-key operations so that the sequence of
1187 squares and multiplies and the memory access pattern are
1188 independent of the particular secret key. This will mitigate
1189 cache-timing and potential related attacks.
1191 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1192 and this is automatically used by BN_mod_exp_mont() if the new flag
1193 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1194 will use this BN flag for private exponents unless the flag
1195 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1196 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1198 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1200 *) Change the client implementation for SSLv23_method() and
1201 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1202 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1203 (Previously, the SSL 2.0 backwards compatible Client Hello
1204 message format would be used even with SSL_OP_NO_SSLv2.)
1207 *) Add support for smime-type MIME parameter in S/MIME messages which some
1211 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1212 a threadsafe manner. Modify rsa code to use new function and add calls
1213 to dsa and dh code (which had race conditions before).
1216 *) Include the fixed error library code in the C error file definitions
1217 instead of fixing them up at runtime. This keeps the error code
1218 structures constant.
1221 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1223 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1226 *) Fixes for newer kerberos headers. NB: the casts are needed because
1227 the 'length' field is signed on one version and unsigned on another
1228 with no (?) obvious way to tell the difference, without these VC++
1229 complains. Also the "definition" of FAR (blank) is no longer included
1230 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1231 some needed definitions.
1234 *) Undo Cygwin change.
1237 *) Added support for proxy certificates according to RFC 3820.
1238 Because they may be a security thread to unaware applications,
1239 they must be explicitely allowed in run-time. See
1240 docs/HOWTO/proxy_certificates.txt for further information.
1243 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1245 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1246 server and client random values. Previously
1247 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1248 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1250 This change has negligible security impact because:
1252 1. Server and client random values still have 24 bytes of pseudo random
1255 2. Server and client random values are sent in the clear in the initial
1258 3. The master secret is derived using the premaster secret (48 bytes in
1259 size for static RSA ciphersuites) as well as client server and random
1262 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1265 [Stephen Henson, reported by UK NISCC]
1267 *) Use Windows randomness collection on Cygwin.
1270 *) Fix hang in EGD/PRNGD query when communication socket is closed
1271 prematurely by EGD/PRNGD.
1272 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1274 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1277 *) Back-port of selected performance improvements from development
1278 branch, as well as improved support for PowerPC platforms.
1281 *) Add lots of checks for memory allocation failure, error codes to indicate
1282 failure and freeing up memory if a failure occurs.
1283 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1285 *) Add new -passin argument to dgst.
1288 *) Perform some character comparisons of different types in X509_NAME_cmp:
1289 this is needed for some certificates that reencode DNs into UTF8Strings
1290 (in violation of RFC3280) and can't or wont issue name rollover
1294 *) Make an explicit check during certificate validation to see that
1295 the CA setting in each certificate on the chain is correct. As a
1296 side effect always do the following basic checks on extensions,
1297 not just when there's an associated purpose to the check:
1299 - if there is an unhandled critical extension (unless the user
1300 has chosen to ignore this fault)
1301 - if the path length has been exceeded (if one is set at all)
1302 - that certain extensions fit the associated purpose (if one has
1306 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1308 *) Avoid a race condition when CRLs are checked in a multi threaded
1309 environment. This would happen due to the reordering of the revoked
1310 entries during signature checking and serial number lookup. Now the
1311 encoding is cached and the serial number sort performed under a lock.
1312 Add new STACK function sk_is_sorted().
1315 *) Add Delta CRL to the extension code.
1318 *) Various fixes to s3_pkt.c so alerts are sent properly.
1319 [David Holmes <d.holmes@f5.com>]
1321 *) Reduce the chances of duplicate issuer name and serial numbers (in
1322 violation of RFC3280) using the OpenSSL certificate creation utilities.
1323 This is done by creating a random 64 bit value for the initial serial
1324 number when a serial number file is created or when a self signed
1325 certificate is created using 'openssl req -x509'. The initial serial
1326 number file is created using 'openssl x509 -next_serial' in CA.pl
1327 rather than being initialized to 1.
1330 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1332 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1333 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1334 [Joe Orton, Steve Henson]
1336 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1338 [Joe Orton, Steve Henson]
1340 *) Make it possible to have multiple active certificates with the same
1341 subject in the CA index file. This is done only if the keyword
1342 'unique_subject' is set to 'no' in the main CA section (default
1343 if 'CA_default') of the configuration file. The value is saved
1344 with the database itself in a separate index attribute file,
1345 named like the index file with '.attr' appended to the name.
1348 *) X509 verify fixes. Disable broken certificate workarounds when
1349 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1350 keyUsage extension present. Don't accept CRLs with unhandled critical
1351 extensions: since verify currently doesn't process CRL extensions this
1352 rejects a CRL with *any* critical extensions. Add new verify error codes
1356 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1357 A clarification of RFC2560 will require the use of OCTET STRINGs and
1358 some implementations cannot handle the current raw format. Since OpenSSL
1359 copies and compares OCSP nonces as opaque blobs without any attempt at
1360 parsing them this should not create any compatibility issues.
1363 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1364 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1365 this HMAC (and other) operations are several times slower than OpenSSL
1369 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1370 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1372 *) Use the correct content when signing type "other".
1375 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1377 *) Fix various bugs revealed by running the NISCC test suite:
1379 Stop out of bounds reads in the ASN1 code when presented with
1380 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1382 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1384 If verify callback ignores invalid public key errors don't try to check
1385 certificate signature with the NULL public key.
1389 *) New -ignore_err option in ocsp application to stop the server
1390 exiting on the first error in a request.
1393 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1394 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1398 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1399 extra data after the compression methods not only for TLS 1.0
1400 but also for SSL 3.0 (as required by the specification).
1401 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1403 *) Change X509_certificate_type() to mark the key as exported/exportable
1404 when it's 512 *bits* long, not 512 bytes.
1407 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1408 blocks during encryption.
1411 *) Various fixes to base64 BIO and non blocking I/O. On write
1412 flushes were not handled properly if the BIO retried. On read
1413 data was not being buffered properly and had various logic bugs.
1414 This also affects blocking I/O when the data being decoded is a
1418 *) Various S/MIME bugfixes and compatibility changes:
1419 output correct application/pkcs7 MIME type if
1420 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1421 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1422 of files as .eml work). Correctly handle very long lines in MIME
1426 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1428 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1429 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1430 a protocol version number mismatch like a decryption error
1431 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1434 *) Turn on RSA blinding by default in the default implementation
1435 to avoid a timing attack. Applications that don't want it can call
1436 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1437 They would be ill-advised to do so in most cases.
1438 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1440 *) Change RSA blinding code so that it works when the PRNG is not
1441 seeded (in this case, the secret RSA exponent is abused as
1442 an unpredictable seed -- if it is not unpredictable, there
1443 is no point in blinding anyway). Make RSA blinding thread-safe
1444 by remembering the creator's thread ID in rsa->blinding and
1445 having all other threads use local one-time blinding factors
1446 (this requires more computation than sharing rsa->blinding, but
1447 avoids excessive locking; and if an RSA object is not shared
1448 between threads, blinding will still be very fast).
1451 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1452 ENGINE as defaults for all supported algorithms irrespective of
1453 the 'flags' parameter. 'flags' is now honoured, so applications
1454 should make sure they are passing it correctly.
1457 *) Target "mingw" now allows native Windows code to be generated in
1458 the Cygwin environment as well as with the MinGW compiler.
1461 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1463 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1464 via timing by performing a MAC computation even if incorrrect
1465 block cipher padding has been found. This is a countermeasure
1466 against active attacks where the attacker has to distinguish
1467 between bad padding and a MAC verification error. (CVE-2003-0078)
1469 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1470 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1471 Martin Vuagnoux (EPFL, Ilion)]
1473 *) Make the no-err option work as intended. The intention with no-err
1474 is not to have the whole error stack handling routines removed from
1475 libcrypto, it's only intended to remove all the function name and
1476 reason texts, thereby removing some of the footprint that may not
1477 be interesting if those errors aren't displayed anyway.
1479 NOTE: it's still possible for any application or module to have it's
1480 own set of error texts inserted. The routines are there, just not
1481 used by default when no-err is given.
1484 *) Add support for FreeBSD on IA64.
1485 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1487 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1488 Kerberos function mit_des_cbc_cksum(). Before this change,
1489 the value returned by DES_cbc_cksum() was like the one from
1490 mit_des_cbc_cksum(), except the bytes were swapped.
1491 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1493 *) Allow an application to disable the automatic SSL chain building.
1494 Before this a rather primitive chain build was always performed in
1495 ssl3_output_cert_chain(): an application had no way to send the
1496 correct chain if the automatic operation produced an incorrect result.
1498 Now the chain builder is disabled if either:
1500 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1502 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1504 The reasoning behind this is that an application would not want the
1505 auto chain building to take place if extra chain certificates are
1506 present and it might also want a means of sending no additional
1507 certificates (for example the chain has two certificates and the
1511 *) Add the possibility to build without the ENGINE framework.
1512 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1514 *) Under Win32 gmtime() can return NULL: check return value in
1515 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1518 *) DSA routines: under certain error conditions uninitialized BN objects
1519 could be freed. Solution: make sure initialization is performed early
1520 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1521 Nils Larsch <nla@trustcenter.de> via PR#459)
1524 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1525 checked on reconnect on the client side, therefore session resumption
1526 could still fail with a "ssl session id is different" error. This
1527 behaviour is masked when SSL_OP_ALL is used due to
1528 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1529 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1530 followup to PR #377.
1533 *) IA-32 assembler support enhancements: unified ELF targets, support
1534 for SCO/Caldera platforms, fix for Cygwin shared build.
1537 *) Add support for FreeBSD on sparc64. As a consequence, support for
1538 FreeBSD on non-x86 processors is separate from x86 processors on
1539 the config script, much like the NetBSD support.
1540 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1542 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1544 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1547 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1548 code (06) was taken as the first octet of the session ID and the last
1549 octet was ignored consequently. As a result SSLv2 client side session
1550 caching could not have worked due to the session ID mismatch between
1552 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1556 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1557 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1561 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1562 seems that in spite of existing for more than a year, many application
1563 author have done nothing to provide the necessary callbacks, which
1564 means that this particular engine will not work properly anywhere.
1565 This is a very unfortunate situation which forces us, in the name
1566 of usability, to give the hw_ncipher.c a static lock, which is part
1568 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1569 appear in 0.9.8 or later. We EXPECT application authors to have
1570 dealt properly with this when 0.9.8 is released (unless we actually
1571 make such changes in the libcrypto locking code that changes will
1572 have to be made anyway).
1575 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1576 octets have been read, EOF or an error occurs. Without this change
1577 some truncated ASN1 structures will not produce an error.
1580 *) Disable Heimdal support, since it hasn't been fully implemented.
1581 Still give the possibility to force the use of Heimdal, but with
1582 warnings and a request that patches get sent to openssl-dev.
1585 *) Add the VC-CE target, introduce the WINCE sysname, and add
1586 INSTALL.WCE and appropriate conditionals to make it build.
1587 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1589 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1590 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1591 edit numbers of the version.
1592 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1594 *) Introduce safe string copy and catenation functions
1595 (BUF_strlcpy() and BUF_strlcat()).
1596 [Ben Laurie (CHATS) and Richard Levitte]
1598 *) Avoid using fixed-size buffers for one-line DNs.
1599 [Ben Laurie (CHATS)]
1601 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1602 resizing buffers containing secrets, and use where appropriate.
1603 [Ben Laurie (CHATS)]
1605 *) Avoid using fixed size buffers for configuration file location.
1606 [Ben Laurie (CHATS)]
1608 *) Avoid filename truncation for various CA files.
1609 [Ben Laurie (CHATS)]
1611 *) Use sizeof in preference to magic numbers.
1612 [Ben Laurie (CHATS)]
1614 *) Avoid filename truncation in cert requests.
1615 [Ben Laurie (CHATS)]
1617 *) Add assertions to check for (supposedly impossible) buffer
1619 [Ben Laurie (CHATS)]
1621 *) Don't cache truncated DNS entries in the local cache (this could
1622 potentially lead to a spoofing attack).
1623 [Ben Laurie (CHATS)]
1625 *) Fix various buffers to be large enough for hex/decimal
1626 representations in a platform independent manner.
1627 [Ben Laurie (CHATS)]
1629 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1630 resizing buffers containing secrets, and use where appropriate.
1631 [Ben Laurie (CHATS)]
1633 *) Add BIO_indent() to avoid much slightly worrying code to do
1635 [Ben Laurie (CHATS)]
1637 *) Convert sprintf()/BIO_puts() to BIO_printf().
1638 [Ben Laurie (CHATS)]
1640 *) buffer_gets() could terminate with the buffer only half
1642 [Ben Laurie (CHATS)]
1644 *) Add assertions to prevent user-supplied crypto functions from
1645 overflowing internal buffers by having large block sizes, etc.
1646 [Ben Laurie (CHATS)]
1648 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1650 [Ben Laurie (CHATS)]
1652 *) Eliminate unused copy of key in RC4.
1653 [Ben Laurie (CHATS)]
1655 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1656 [Ben Laurie (CHATS)]
1658 *) Fix off-by-one error in EGD path.
1659 [Ben Laurie (CHATS)]
1661 *) If RANDFILE path is too long, ignore instead of truncating.
1662 [Ben Laurie (CHATS)]
1664 *) Eliminate unused and incorrectly sized X.509 structure
1666 [Ben Laurie (CHATS)]
1668 *) Eliminate unused and dangerous function knumber().
1669 [Ben Laurie (CHATS)]
1671 *) Eliminate unused and dangerous structure, KSSL_ERR.
1672 [Ben Laurie (CHATS)]
1674 *) Protect against overlong session ID context length in an encoded
1675 session object. Since these are local, this does not appear to be
1677 [Ben Laurie (CHATS)]
1679 *) Change from security patch (see 0.9.6e below) that did not affect
1680 the 0.9.6 release series:
1682 Remote buffer overflow in SSL3 protocol - an attacker could
1683 supply an oversized master key in Kerberos-enabled versions.
1685 [Ben Laurie (CHATS)]
1687 *) Change the SSL kerb5 codes to match RFC 2712.
1690 *) Make -nameopt work fully for req and add -reqopt switch.
1691 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
1693 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
1694 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
1696 *) Make sure tests can be performed even if the corresponding algorithms
1697 have been removed entirely. This was also the last step to make
1698 OpenSSL compilable with DJGPP under all reasonable conditions.
1699 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
1701 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
1702 to allow version independent disabling of normally unselected ciphers,
1703 which may be activated as a side-effect of selecting a single cipher.
1705 (E.g., cipher list string "RSA" enables ciphersuites that are left
1706 out of "ALL" because they do not provide symmetric encryption.
1707 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
1708 [Lutz Jaenicke, Bodo Moeller]
1710 *) Add appropriate support for separate platform-dependent build
1711 directories. The recommended way to make a platform-dependent
1712 build directory is the following (tested on Linux), maybe with
1715 # Place yourself outside of the OpenSSL source tree. In
1716 # this example, the environment variable OPENSSL_SOURCE
1717 # is assumed to contain the absolute OpenSSL source directory.
1718 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
1719 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
1720 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
1721 mkdir -p `dirname $F`
1722 ln -s $OPENSSL_SOURCE/$F $F
1725 To be absolutely sure not to disturb the source tree, a "make clean"
1726 is a good thing. If it isn't successfull, don't worry about it,
1727 it probably means the source directory is very clean.
1730 *) Make sure any ENGINE control commands make local copies of string
1731 pointers passed to them whenever necessary. Otherwise it is possible
1732 the caller may have overwritten (or deallocated) the original string
1733 data when a later ENGINE operation tries to use the stored values.
1734 [Götz Babin-Ebell <babinebell@trustcenter.de>]
1736 *) Improve diagnostics in file reading and command-line digests.
1737 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
1739 *) Add AES modes CFB and OFB to the object database. Correct an
1740 error in AES-CFB decryption.
1743 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
1744 allows existing EVP_CIPHER_CTX structures to be reused after
1745 calling EVP_*Final(). This behaviour is used by encryption
1746 BIOs and some applications. This has the side effect that
1747 applications must explicitly clean up cipher contexts with
1748 EVP_CIPHER_CTX_cleanup() or they will leak memory.
1751 *) Check the values of dna and dnb in bn_mul_recursive before calling
1752 bn_mul_comba (a non zero value means the a or b arrays do not contain
1753 n2 elements) and fallback to bn_mul_normal if either is not zero.
1756 *) Fix escaping of non-ASCII characters when using the -subj option
1757 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
1760 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
1761 form for "surname", serialNumber has no short form.
1762 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
1763 therefore remove "mail" short name for "internet 7".
1764 The OID for unique identifiers in X509 certificates is
1765 x500UniqueIdentifier, not uniqueIdentifier.
1766 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
1769 *) Add an "init" command to the ENGINE config module and auto initialize
1770 ENGINEs. Without any "init" command the ENGINE will be initialized
1771 after all ctrl commands have been executed on it. If init=1 the
1772 ENGINE is initailized at that point (ctrls before that point are run
1773 on the uninitialized ENGINE and after on the initialized one). If
1774 init=0 then the ENGINE will not be iniatialized at all.
1777 *) Fix the 'app_verify_callback' interface so that the user-defined
1778 argument is actually passed to the callback: In the
1779 SSL_CTX_set_cert_verify_callback() prototype, the callback
1780 declaration has been changed from
1783 int (*cb)(X509_STORE_CTX *,void *);
1784 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
1785 i=s->ctx->app_verify_callback(&ctx)
1786 has been changed into
1787 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
1789 To update applications using SSL_CTX_set_cert_verify_callback(),
1790 a dummy argument can be added to their callback functions.
1791 [D. K. Smetters <smetters@parc.xerox.com>]
1793 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
1794 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
1796 *) Add and OPENSSL_LOAD_CONF define which will cause
1797 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
1798 This allows older applications to transparently support certain
1799 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
1800 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
1801 load the config file and OPENSSL_add_all_algorithms_conf() which will
1802 always load it have also been added.
1805 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
1806 Adjust NIDs and EVP layer.
1807 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1809 *) Config modules support in openssl utility.
1811 Most commands now load modules from the config file,
1812 though in a few (such as version) this isn't done
1813 because it couldn't be used for anything.
1815 In the case of ca and req the config file used is
1816 the same as the utility itself: that is the -config
1817 command line option can be used to specify an
1821 *) Move default behaviour from OPENSSL_config(). If appname is NULL
1822 use "openssl_conf" if filename is NULL use default openssl config file.
1825 *) Add an argument to OPENSSL_config() to allow the use of an alternative
1826 config section name. Add a new flag to tolerate a missing config file
1827 and move code to CONF_modules_load_file().
1830 *) Support for crypto accelerator cards from Accelerated Encryption
1831 Processing, www.aep.ie. (Use engine 'aep')
1832 The support was copied from 0.9.6c [engine] and adapted/corrected
1833 to work with the new engine framework.
1834 [AEP Inc. and Richard Levitte]
1836 *) Support for SureWare crypto accelerator cards from Baltimore
1837 Technologies. (Use engine 'sureware')
1838 The support was copied from 0.9.6c [engine] and adapted
1839 to work with the new engine framework.
1842 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
1843 make the newer ENGINE framework commands for the CHIL engine work.
1844 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
1846 *) Make it possible to produce shared libraries on ReliantUNIX.
1847 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
1849 *) Add the configuration target debug-linux-ppro.
1850 Make 'openssl rsa' use the general key loading routines
1851 implemented in apps.c, and make those routines able to
1852 handle the key format FORMAT_NETSCAPE and the variant
1854 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1856 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
1857 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
1859 *) Add -keyform to rsautl, and document -engine.
1860 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
1862 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
1863 BIO_R_NO_SUCH_FILE error code rather than the generic
1864 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
1867 *) Add new functions
1869 ERR_peek_last_error_line
1870 ERR_peek_last_error_line_data.
1871 These are similar to
1874 ERR_peek_error_line_data,
1875 but report on the latest error recorded rather than the first one
1876 still in the error queue.
1877 [Ben Laurie, Bodo Moeller]
1879 *) default_algorithms option in ENGINE config module. This allows things
1881 default_algorithms = ALL
1882 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
1885 *) Prelminary ENGINE config module.
1888 *) New experimental application configuration code.
1891 *) Change the AES code to follow the same name structure as all other
1892 symmetric ciphers, and behave the same way. Move everything to
1893 the directory crypto/aes, thereby obsoleting crypto/rijndael.
1894 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1896 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
1897 [Ben Laurie and Theo de Raadt]
1899 *) Add option to output public keys in req command.
1900 [Massimiliano Pala madwolf@openca.org]
1902 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
1903 (up to about 10% better than before for P-192 and P-224).
1906 *) New functions/macros
1908 SSL_CTX_set_msg_callback(ctx, cb)
1909 SSL_CTX_set_msg_callback_arg(ctx, arg)
1910 SSL_set_msg_callback(ssl, cb)
1911 SSL_set_msg_callback_arg(ssl, arg)
1913 to request calling a callback function
1915 void cb(int write_p, int version, int content_type,
1916 const void *buf, size_t len, SSL *ssl, void *arg)
1918 whenever a protocol message has been completely received
1919 (write_p == 0) or sent (write_p == 1). Here 'version' is the
1920 protocol version according to which the SSL library interprets
1921 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
1922 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
1923 the content type as defined in the SSL 3.0/TLS 1.0 protocol
1924 specification (change_cipher_spec(20), alert(21), handshake(22)).
1925 'buf' and 'len' point to the actual message, 'ssl' to the
1926 SSL object, and 'arg' is the application-defined value set by
1927 SSL[_CTX]_set_msg_callback_arg().
1929 'openssl s_client' and 'openssl s_server' have new '-msg' options
1930 to enable a callback that displays all protocol messages.
1933 *) Change the shared library support so shared libraries are built as
1934 soon as the corresponding static library is finished, and thereby get
1935 openssl and the test programs linked against the shared library.
1936 This still only happens when the keyword "shard" has been given to
1937 the configuration scripts.
1939 NOTE: shared library support is still an experimental thing, and
1940 backward binary compatibility is still not guaranteed.
1941 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
1943 *) Add support for Subject Information Access extension.
1944 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1946 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
1947 additional bytes when new memory had to be allocated, not just
1948 when reusing an existing buffer.
1951 *) New command line and configuration option 'utf8' for the req command.
1952 This allows field values to be specified as UTF8 strings.
1955 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
1956 runs for the former and machine-readable output for the latter.
1959 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
1960 of the e-mail address in the DN (i.e., it will go into a certificate
1961 extension only). The new configuration file option 'email_in_dn = no'
1962 has the same effect.
1963 [Massimiliano Pala madwolf@openca.org]
1965 *) Change all functions with names starting with des_ to be starting
1966 with DES_ instead. Add wrappers that are compatible with libdes,
1967 but are named _ossl_old_des_*. Finally, add macros that map the
1968 des_* symbols to the corresponding _ossl_old_des_* if libdes
1969 compatibility is desired. If OpenSSL 0.9.6c compatibility is
1970 desired, the des_* symbols will be mapped to DES_*, with one
1973 Since we provide two compatibility mappings, the user needs to
1974 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
1975 compatibility is desired. The default (i.e., when that macro
1976 isn't defined) is OpenSSL 0.9.6c compatibility.
1978 There are also macros that enable and disable the support of old
1979 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
1980 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
1981 are defined, the default will apply: to support the old des routines.
1983 In either case, one must include openssl/des.h to get the correct
1984 definitions. Do not try to just include openssl/des_old.h, that
1987 NOTE: This is a major break of an old API into a new one. Software
1988 authors are encouraged to switch to the DES_ style functions. Some
1989 time in the future, des_old.h and the libdes compatibility functions
1990 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
1991 default), and then completely removed.
1994 *) Test for certificates which contain unsupported critical extensions.
1995 If such a certificate is found during a verify operation it is
1996 rejected by default: this behaviour can be overridden by either
1997 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
1998 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
1999 X509_supported_extension() has also been added which returns 1 if a
2000 particular extension is supported.
2003 *) Modify the behaviour of EVP cipher functions in similar way to digests
2004 to retain compatibility with existing code.
2007 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2008 compatibility with existing code. In particular the 'ctx' parameter does
2009 not have to be to be initialized before the call to EVP_DigestInit() and
2010 it is tidied up after a call to EVP_DigestFinal(). New function
2011 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2012 EVP_MD_CTX_copy() changed to not require the destination to be
2013 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2014 requires the destination to be valid.
2016 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2017 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2020 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2021 so that complete 'Handshake' protocol structures are kept in memory
2022 instead of overwriting 'msg_type' and 'length' with 'body' data.
2025 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2026 [Massimo Santin via Richard Levitte]
2028 *) Major restructuring to the underlying ENGINE code. This includes
2029 reduction of linker bloat, separation of pure "ENGINE" manipulation
2030 (initialisation, etc) from functionality dealing with implementations
2031 of specific crypto iterfaces. This change also introduces integrated
2032 support for symmetric ciphers and digest implementations - so ENGINEs
2033 can now accelerate these by providing EVP_CIPHER and EVP_MD
2034 implementations of their own. This is detailed in crypto/engine/README
2035 as it couldn't be adequately described here. However, there are a few
2036 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2037 were changed in the original introduction of ENGINE code have now
2038 reverted back - the hooking from this code to ENGINE is now a good
2039 deal more passive and at run-time, operations deal directly with
2040 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2041 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2042 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2043 they were not being used by the framework as there is no concept of a
2044 BIGNUM_METHOD and they could not be generalised to the new
2045 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2046 ENGINE_cpy() has been removed as it cannot be consistently defined in
2050 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2053 *) Change mkdef.pl to sort symbols that get the same entry number,
2054 and make sure the automatically generated functions ERR_load_*
2055 become part of libeay.num as well.
2058 *) New function SSL_renegotiate_pending(). This returns true once
2059 renegotiation has been requested (either SSL_renegotiate() call
2060 or HelloRequest/ClientHello receveived from the peer) and becomes
2061 false once a handshake has been completed.
2062 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2063 sends a HelloRequest, but does not ensure that a handshake takes
2064 place. SSL_renegotiate_pending() is useful for checking if the
2065 client has followed the request.)
2068 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2069 By default, clients may request session resumption even during
2070 renegotiation (if session ID contexts permit); with this option,
2071 session resumption is possible only in the first handshake.
2073 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2074 more bits available for options that should not be part of
2075 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2078 *) Add some demos for certificate and certificate request creation.
2081 *) Make maximum certificate chain size accepted from the peer application
2082 settable (SSL*_get/set_max_cert_list()), as proposed by
2083 "Douglas E. Engert" <deengert@anl.gov>.
2086 *) Add support for shared libraries for Unixware-7
2087 (Boyd Lynn Gerber <gerberb@zenez.com>).
2090 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2091 be done prior to destruction. Use this to unload error strings from
2092 ENGINEs that load their own error strings. NB: This adds two new API
2093 functions to "get" and "set" this destroy handler in an ENGINE.
2096 *) Alter all existing ENGINE implementations (except "openssl" and
2097 "openbsd") to dynamically instantiate their own error strings. This
2098 makes them more flexible to be built both as statically-linked ENGINEs
2099 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2100 Also, add stub code to each that makes building them as self-contained
2101 shared-libraries easier (see README.ENGINE).
2104 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2105 implementations into applications that are completely implemented in
2106 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2107 commands that can be used to configure what shared-library to load and
2108 to control aspects of the way it is handled. Also, made an update to
2109 the README.ENGINE file that brings its information up-to-date and
2110 provides some information and instructions on the "dynamic" ENGINE
2111 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2114 *) Make it possible to unload ranges of ERR strings with a new
2115 "ERR_unload_strings" function.
2118 *) Add a copy() function to EVP_MD.
2121 *) Make EVP_MD routines take a context pointer instead of just the
2122 md_data void pointer.
2125 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2126 that the digest can only process a single chunk of data
2127 (typically because it is provided by a piece of
2128 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2129 is only going to provide a single chunk of data, and hence the
2130 framework needn't accumulate the data for oneshot drivers.
2133 *) As with "ERR", make it possible to replace the underlying "ex_data"
2134 functions. This change also alters the storage and management of global
2135 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2136 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2137 index counters. The API functions that use this state have been changed
2138 to take a "class_index" rather than pointers to the class's local STACK
2139 and counter, and there is now an API function to dynamically create new
2140 classes. This centralisation allows us to (a) plug a lot of the
2141 thread-safety problems that existed, and (b) makes it possible to clean
2142 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2143 such data would previously have always leaked in application code and
2144 workarounds were in place to make the memory debugging turn a blind eye
2145 to it. Application code that doesn't use this new function will still
2146 leak as before, but their memory debugging output will announce it now
2147 rather than letting it slide.
2149 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2150 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2151 has a return value to indicate success or failure.
2154 *) Make it possible to replace the underlying "ERR" functions such that the
2155 global state (2 LHASH tables and 2 locks) is only used by the "default"
2156 implementation. This change also adds two functions to "get" and "set"
2157 the implementation prior to it being automatically set the first time
2158 any other ERR function takes place. Ie. an application can call "get",
2159 pass the return value to a module it has just loaded, and that module
2160 can call its own "set" function using that value. This means the
2161 module's "ERR" operations will use (and modify) the error state in the
2162 application and not in its own statically linked copy of OpenSSL code.
2165 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2166 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2167 the operation, and provides a more encapsulated way for external code
2168 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2169 to use these functions rather than manually incrementing the counts.
2171 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2174 *) Add EVP test program.
2177 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2180 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2181 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2182 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2183 These allow a CRL to be built without having to access X509_CRL fields
2184 directly. Modify 'ca' application to use new functions.
2187 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2188 bug workarounds. Rollback attack detection is a security feature.
2189 The problem will only arise on OpenSSL servers when TLSv1 is not
2190 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2191 Software authors not wanting to support TLSv1 will have special reasons
2192 for their choice and can explicitly enable this option.
2193 [Bodo Moeller, Lutz Jaenicke]
2195 *) Rationalise EVP so it can be extended: don't include a union of
2196 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2197 (similar to those existing for EVP_CIPHER_CTX).
2202 EVP_MD_CTX_init(&md); /* new function call */
2203 EVP_DigestInit(&md, EVP_sha1());
2204 EVP_DigestUpdate(&md, in, len);
2205 EVP_DigestFinal(&md, out, NULL);
2206 EVP_MD_CTX_cleanup(&md); /* new function call */
2210 *) Make DES key schedule conform to the usual scheme, as well as
2211 correcting its structure. This means that calls to DES functions
2212 now have to pass a pointer to a des_key_schedule instead of a
2213 plain des_key_schedule (which was actually always a pointer
2216 des_key_schedule ks;
2218 des_set_key_checked(..., &ks);
2219 des_ncbc_encrypt(..., &ks, ...);
2221 (Note that a later change renames 'des_...' into 'DES_...'.)
2224 *) Initial reduction of linker bloat: the use of some functions, such as
2225 PEM causes large amounts of unused functions to be linked in due to
2226 poor organisation. For example pem_all.c contains every PEM function
2227 which has a knock on effect of linking in large amounts of (unused)
2228 ASN1 code. Grouping together similar functions and splitting unrelated
2229 functions prevents this.
2232 *) Cleanup of EVP macros.
2235 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2236 correct _ecb suffix.
2239 *) Add initial OCSP responder support to ocsp application. The
2240 revocation information is handled using the text based index
2241 use by the ca application. The responder can either handle
2242 requests generated internally, supplied in files (for example
2243 via a CGI script) or using an internal minimal server.
2246 *) Add configuration choices to get zlib compression for TLS.
2249 *) Changes to Kerberos SSL for RFC 2712 compliance:
2250 1. Implemented real KerberosWrapper, instead of just using
2251 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2252 2. Implemented optional authenticator field of KerberosWrapper.
2254 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2255 and authenticator structs; see crypto/krb5/.
2257 Generalized Kerberos calls to support multiple Kerberos libraries.
2258 [Vern Staats <staatsvr@asc.hpc.mil>,
2259 Jeffrey Altman <jaltman@columbia.edu>
2260 via Richard Levitte]
2262 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2263 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2264 values for each of the key sizes rather than having just
2265 parameters (and 'speed' generating keys each time).
2268 *) Speed up EVP routines.
2271 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2272 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2273 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2274 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2276 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2277 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2278 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2281 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2283 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2286 *) Added the OS2-EMX target.
2287 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2289 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2290 to support NCONF routines in extension code. New function CONF_set_nconf()
2291 to allow functions which take an NCONF to also handle the old LHASH
2292 structure: this means that the old CONF compatible routines can be
2293 retained (in particular wrt extensions) without having to duplicate the
2294 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2297 *) Enhance the general user interface with mechanisms for inner control
2298 and with possibilities to have yes/no kind of prompts.
2301 *) Change all calls to low level digest routines in the library and
2302 applications to use EVP. Add missing calls to HMAC_cleanup() and
2303 don't assume HMAC_CTX can be copied using memcpy().
2304 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2306 *) Add the possibility to control engines through control names but with
2307 arbitrary arguments instead of just a string.
2308 Change the key loaders to take a UI_METHOD instead of a callback
2309 function pointer. NOTE: this breaks binary compatibility with earlier
2310 versions of OpenSSL [engine].
2311 Adapt the nCipher code for these new conditions and add a card insertion
2315 *) Enhance the general user interface with mechanisms to better support
2316 dialog box interfaces, application-defined prompts, the possibility
2317 to use defaults (for example default passwords from somewhere else)
2318 and interrupts/cancellations.
2321 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2322 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2325 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2326 tidy up some unnecessarily weird code in 'sk_new()').
2327 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2329 *) Change the key loading routines for ENGINEs to use the same kind
2330 callback (pem_password_cb) as all other routines that need this
2334 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2335 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2336 than this minimum value is recommended.
2339 *) New random seeder for OpenVMS, using the system process statistics
2340 that are easily reachable.
2343 *) Windows apparently can't transparently handle global
2344 variables defined in DLLs. Initialisations such as:
2346 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2348 wont compile. This is used by the any applications that need to
2349 declare their own ASN1 modules. This was fixed by adding the option
2350 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2351 needed for static libraries under Win32.
2354 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2355 setting of purpose and trust fields. New X509_STORE trust and
2356 purpose functions and tidy up setting in other SSL functions.
2359 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2360 structure. These are inherited by X509_STORE_CTX when it is
2361 initialised. This allows various defaults to be set in the
2362 X509_STORE structure (such as flags for CRL checking and custom
2363 purpose or trust settings) for functions which only use X509_STORE_CTX
2364 internally such as S/MIME.
2366 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2367 trust settings if they are not set in X509_STORE. This allows X509_STORE
2368 purposes and trust (in S/MIME for example) to override any set by default.
2370 Add command line options for CRL checking to smime, s_client and s_server
2374 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2375 are set then the CRL is looked up in the X509_STORE structure and
2376 its validity and signature checked, then if the certificate is found
2377 in the CRL the verify fails with a revoked error.
2379 Various new CRL related callbacks added to X509_STORE_CTX structure.
2381 Command line options added to 'verify' application to support this.
2383 This needs some additional work, such as being able to handle multiple
2384 CRLs with different times, extension based lookup (rather than just
2385 by subject name) and ultimately more complete V2 CRL extension
2389 *) Add a general user interface API (crypto/ui/). This is designed
2390 to replace things like des_read_password and friends (backward
2391 compatibility functions using this new API are provided).
2392 The purpose is to remove prompting functions from the DES code
2393 section as well as provide for prompting through dialog boxes in
2394 a window system and the like.
2397 *) Add "ex_data" support to ENGINE so implementations can add state at a
2398 per-structure level rather than having to store it globally.
2401 *) Make it possible for ENGINE structures to be copied when retrieved by
2402 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2403 This causes the "original" ENGINE structure to act like a template,
2404 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2405 operational state can be localised to each ENGINE structure, despite the
2406 fact they all share the same "methods". New ENGINE structures returned in
2407 this case have no functional references and the return value is the single
2408 structural reference. This matches the single structural reference returned
2409 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2413 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2414 needs to match any other type at all we need to manually clear the
2418 *) Changes to the "openssl engine" utility to include;
2419 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2420 about an ENGINE's available control commands.
2421 - executing control commands from command line arguments using the
2422 '-pre' and '-post' switches. '-post' is only used if '-t' is
2423 specified and the ENGINE is successfully initialised. The syntax for
2424 the individual commands are colon-separated, for example;
2425 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2428 *) New dynamic control command support for ENGINEs. ENGINEs can now
2429 declare their own commands (numbers), names (strings), descriptions,
2430 and input types for run-time discovery by calling applications. A
2431 subset of these commands are implicitly classed as "executable"
2432 depending on their input type, and only these can be invoked through
2433 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2434 can be based on user input, config files, etc). The distinction is
2435 that "executable" commands cannot return anything other than a boolean
2436 result and can only support numeric or string input, whereas some
2437 discoverable commands may only be for direct use through
2438 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2439 pointers, or other custom uses. The "executable" commands are to
2440 support parameterisations of ENGINE behaviour that can be
2441 unambiguously defined by ENGINEs and used consistently across any
2442 OpenSSL-based application. Commands have been added to all the
2443 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2444 control over shared-library paths without source code alterations.
2447 *) Changed all ENGINE implementations to dynamically allocate their
2448 ENGINEs rather than declaring them statically. Apart from this being
2449 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2450 this also allows the implementations to compile without using the
2451 internal engine_int.h header.
2454 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2455 'const' value. Any code that should be able to modify a RAND_METHOD
2456 should already have non-const pointers to it (ie. they should only
2457 modify their own ones).
2460 *) Made a variety of little tweaks to the ENGINE code.
2461 - "atalla" and "ubsec" string definitions were moved from header files
2462 to C code. "nuron" string definitions were placed in variables
2463 rather than hard-coded - allowing parameterisation of these values
2464 later on via ctrl() commands.
2465 - Removed unused "#if 0"'d code.
2466 - Fixed engine list iteration code so it uses ENGINE_free() to release
2467 structural references.
2468 - Constified the RAND_METHOD element of ENGINE structures.
2469 - Constified various get/set functions as appropriate and added
2470 missing functions (including a catch-all ENGINE_cpy that duplicates
2471 all ENGINE values onto a new ENGINE except reference counts/state).
2472 - Removed NULL parameter checks in get/set functions. Setting a method
2473 or function to NULL is a way of cancelling out a previously set
2474 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2475 and doesn't justify the extra error symbols and code.
2476 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2477 flags from engine_int.h to engine.h.
2478 - Changed prototypes for ENGINE handler functions (init(), finish(),
2479 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2482 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2483 to the algorithm using long division. The binary algorithm can be
2484 used only if the modulus is odd. On 32-bit systems, it is faster
2485 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2486 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2487 up to 450 bits. In 64-bit environments, the binary algorithm
2488 appears to be advantageous for much longer moduli; here we use it
2489 for moduli up to 2048 bits.
2492 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2493 could not support the combine flag in choice fields.
2496 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2497 extensions from a certificate request to the certificate.
2500 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2501 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2502 file: this allows the display of the certificate about to be
2503 signed to be customised, to allow certain fields to be included
2504 or excluded and extension details. The old system didn't display
2505 multicharacter strings properly, omitted fields not in the policy
2506 and couldn't display additional details such as extensions.
2509 *) Function EC_POINTs_mul for multiple scalar multiplication
2510 of an arbitrary number of elliptic curve points
2511 \sum scalars[i]*points[i],
2512 optionally including the generator defined for the EC_GROUP:
2513 scalar*generator + \sum scalars[i]*points[i].
2515 EC_POINT_mul is a simple wrapper function for the typical case
2516 that the point list has just one item (besides the optional
2520 *) First EC_METHODs for curves over GF(p):
2522 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2523 operations and provides various method functions that can also
2524 operate with faster implementations of modular arithmetic.
2526 EC_GFp_mont_method() reuses most functions that are part of
2527 EC_GFp_simple_method, but uses Montgomery arithmetic.
2529 [Bodo Moeller; point addition and point doubling
2530 implementation directly derived from source code provided by
2531 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2533 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2534 crypto/ec/ec_lib.c):
2536 Curves are EC_GROUP objects (with an optional group generator)
2537 based on EC_METHODs that are built into the library.
2539 Points are EC_POINT objects based on EC_GROUP objects.
2541 Most of the framework would be able to handle curves over arbitrary
2542 finite fields, but as there are no obvious types for fields other
2543 than GF(p), some functions are limited to that for now.
2546 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2547 that the file contains a complete HTTP response.
2550 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2551 change the def and num file printf format specifier from "%-40sXXX"
2552 to "%-39s XXX". The latter will always guarantee a space after the
2553 field while the former will cause them to run together if the field
2554 is 40 of more characters long.
2557 *) Constify the cipher and digest 'method' functions and structures
2558 and modify related functions to take constant EVP_MD and EVP_CIPHER
2562 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2563 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2566 *) Modify EVP_Digest*() routines so they now return values. Although the
2567 internal software routines can never fail additional hardware versions
2571 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2573 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2574 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2577 ERR_R_NESTED_ASN1_ERROR
2579 ERR_R_MISSING_ASN1_EOS
2580 were 4 .. 9, conflicting with
2581 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2583 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2584 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2586 Add new error code 'ERR_R_INTERNAL_ERROR'.
2589 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2593 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2594 sets the subject name for a new request or supersedes the
2595 subject name in a given request. Formats that can be parsed are
2596 'CN=Some Name, OU=myOU, C=IT'
2598 'CN=Some Name/OU=myOU/C=IT'.
2600 Add options '-batch' and '-verbose' to 'openssl req'.
2601 [Massimiliano Pala <madwolf@hackmasters.net>]
2603 *) Introduce the possibility to access global variables through
2604 functions on platform were that's the best way to handle exporting
2605 global variables in shared libraries. To enable this functionality,
2606 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2607 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2608 is normally done by Configure or something similar).
2610 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2611 in the source file (foo.c) like this:
2613 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2614 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2616 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2617 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2619 OPENSSL_DECLARE_GLOBAL(int,foo);
2620 #define foo OPENSSL_GLOBAL_REF(foo)
2621 OPENSSL_DECLARE_GLOBAL(double,bar);
2622 #define bar OPENSSL_GLOBAL_REF(bar)
2624 The #defines are very important, and therefore so is including the
2625 header file everywhere where the defined globals are used.
2627 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2628 of ASN.1 items, but that structure is a bit different.
2630 The largest change is in util/mkdef.pl which has been enhanced with
2631 better and easier to understand logic to choose which symbols should
2632 go into the Windows .def files as well as a number of fixes and code
2633 cleanup (among others, algorithm keywords are now sorted
2634 lexicographically to avoid constant rewrites).
2637 *) In BN_div() keep a copy of the sign of 'num' before writing the
2638 result to 'rm' because if rm==num the value will be overwritten
2639 and produce the wrong result if 'num' is negative: this caused
2640 problems with BN_mod() and BN_nnmod().
2643 *) Function OCSP_request_verify(). This checks the signature on an
2644 OCSP request and verifies the signer certificate. The signer
2645 certificate is just checked for a generic purpose and OCSP request
2649 *) Add OCSP_check_validity() function to check the validity of OCSP
2650 responses. OCSP responses are prepared in real time and may only
2651 be a few seconds old. Simply checking that the current time lies
2652 between thisUpdate and nextUpdate max reject otherwise valid responses
2653 caused by either OCSP responder or client clock inaccuracy. Instead
2654 we allow thisUpdate and nextUpdate to fall within a certain period of
2655 the current time. The age of the response can also optionally be
2656 checked. Two new options -validity_period and -status_age added to
2660 *) If signature or public key algorithm is unrecognized print out its
2661 OID rather that just UNKNOWN.
2664 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2665 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2666 ID to be generated from the issuer certificate alone which can then be
2667 passed to OCSP_id_issuer_cmp().
2670 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
2671 ASN1 modules to export functions returning ASN1_ITEM pointers
2672 instead of the ASN1_ITEM structures themselves. This adds several
2673 new macros which allow the underlying ASN1 function/structure to
2674 be accessed transparently. As a result code should not use ASN1_ITEM
2675 references directly (such as &X509_it) but instead use the relevant
2676 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
2677 use of the new ASN1 code on platforms where exporting structures
2678 is problematical (for example in shared libraries) but exporting
2679 functions returning pointers to structures is not.
2682 *) Add support for overriding the generation of SSL/TLS session IDs.
2683 These callbacks can be registered either in an SSL_CTX or per SSL.
2684 The purpose of this is to allow applications to control, if they wish,
2685 the arbitrary values chosen for use as session IDs, particularly as it
2686 can be useful for session caching in multiple-server environments. A
2687 command-line switch for testing this (and any client code that wishes
2688 to use such a feature) has been added to "s_server".
2689 [Geoff Thorpe, Lutz Jaenicke]
2691 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
2692 of the form '#if defined(...) || defined(...) || ...' and
2693 '#if !defined(...) && !defined(...) && ...'. This also avoids
2694 the growing number of special cases it was previously handling.
2697 *) Make all configuration macros available for application by making
2698 sure they are available in opensslconf.h, by giving them names starting
2699 with "OPENSSL_" to avoid conflicts with other packages and by making
2700 sure e_os2.h will cover all platform-specific cases together with
2702 Additionally, it is now possible to define configuration/platform-
2703 specific names (called "system identities"). In the C code, these
2704 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
2705 macro with the name beginning with "OPENSSL_SYS_", which is determined
2706 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
2710 *) New option -set_serial to 'req' and 'x509' this allows the serial
2711 number to use to be specified on the command line. Previously self
2712 signed certificates were hard coded with serial number 0 and the
2713 CA options of 'x509' had to use a serial number in a file which was
2717 *) New options to 'ca' utility to support V2 CRL entry extensions.
2718 Currently CRL reason, invalidity date and hold instruction are
2719 supported. Add new CRL extensions to V3 code and some new objects.
2722 *) New function EVP_CIPHER_CTX_set_padding() this is used to
2723 disable standard block padding (aka PKCS#5 padding) in the EVP
2724 API, which was previously mandatory. This means that the data is
2725 not padded in any way and so the total length much be a multiple
2726 of the block size, otherwise an error occurs.
2729 *) Initial (incomplete) OCSP SSL support.
2732 *) New function OCSP_parse_url(). This splits up a URL into its host,
2733 port and path components: primarily to parse OCSP URLs. New -url
2734 option to ocsp utility.
2737 *) New nonce behavior. The return value of OCSP_check_nonce() now
2738 reflects the various checks performed. Applications can decide
2739 whether to tolerate certain situations such as an absent nonce
2740 in a response when one was present in a request: the ocsp application
2741 just prints out a warning. New function OCSP_add1_basic_nonce()
2742 this is to allow responders to include a nonce in a response even if
2743 the request is nonce-less.
2746 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
2747 skipped when using openssl x509 multiple times on a single input file,
2748 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
2751 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
2752 set string type: to handle setting ASN1_TIME structures. Fix ca
2753 utility to correctly initialize revocation date of CRLs.
2756 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
2757 the clients preferred ciphersuites and rather use its own preferences.
2758 Should help to work around M$ SGC (Server Gated Cryptography) bug in
2759 Internet Explorer by ensuring unchanged hash method during stepup.
2760 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
2763 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
2764 to aes and add a new 'exist' option to print out symbols that don't
2768 *) Additional options to ocsp utility to allow flags to be set and
2769 additional certificates supplied.
2772 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
2773 OCSP client a number of certificate to only verify the response
2777 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
2778 handle the new API. Currently only ECB, CBC modes supported. Add new
2781 Add TLS AES ciphersuites as described in RFC3268, "Advanced
2782 Encryption Standard (AES) Ciphersuites for Transport Layer
2783 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
2784 not enabled by default and were not part of the "ALL" ciphersuite
2785 alias because they were not yet official; they could be
2786 explicitly requested by specifying the "AESdraft" ciphersuite
2787 group alias. In the final release of OpenSSL 0.9.7, the group
2788 alias is called "AES" and is part of "ALL".)
2789 [Ben Laurie, Steve Henson, Bodo Moeller]
2791 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
2792 request to response.
2795 *) Functions for OCSP responders. OCSP_request_onereq_count(),
2796 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
2797 extract information from a certificate request. OCSP_response_create()
2798 creates a response and optionally adds a basic response structure.
2799 OCSP_basic_add1_status() adds a complete single response to a basic
2800 response and returns the OCSP_SINGLERESP structure just added (to allow
2801 extensions to be included for example). OCSP_basic_add1_cert() adds a
2802 certificate to a basic response and OCSP_basic_sign() signs a basic
2803 response with various flags. New helper functions ASN1_TIME_check()
2804 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
2805 (converts ASN1_TIME to GeneralizedTime).
2808 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
2809 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
2810 structure from a certificate. X509_pubkey_digest() digests the public_key
2811 contents: this is used in various key identifiers.
2814 *) Make sk_sort() tolerate a NULL argument.
2815 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
2817 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
2818 passed by the function are trusted implicitly. If any of them signed the
2819 response then it is assumed to be valid and is not verified.
2822 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
2823 to data. This was previously part of the PKCS7 ASN1 code. This
2824 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
2825 [Steve Henson, reported by Kenneth R. Robinette
2826 <support@securenetterm.com>]
2828 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
2829 routines: without these tracing memory leaks is very painful.
2830 Fix leaks in PKCS12 and PKCS7 routines.
2833 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
2834 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
2835 effectively meant GeneralizedTime would never be used. Now it
2836 is initialised to -1 but X509_time_adj() now has to check the value
2837 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
2838 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
2839 [Steve Henson, reported by Kenneth R. Robinette
2840 <support@securenetterm.com>]
2842 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
2843 result in a zero length in the ASN1_INTEGER structure which was
2844 not consistent with the structure when d2i_ASN1_INTEGER() was used
2845 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
2846 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
2847 where it did not print out a minus for negative ASN1_INTEGER.
2850 *) Add summary printout to ocsp utility. The various functions which
2851 convert status values to strings have been renamed to:
2852 OCSP_response_status_str(), OCSP_cert_status_str() and
2853 OCSP_crl_reason_str() and are no longer static. New options
2854 to verify nonce values and to disable verification. OCSP response
2855 printout format cleaned up.
2858 *) Add additional OCSP certificate checks. These are those specified
2859 in RFC2560. This consists of two separate checks: the CA of the
2860 certificate being checked must either be the OCSP signer certificate
2861 or the issuer of the OCSP signer certificate. In the latter case the
2862 OCSP signer certificate must contain the OCSP signing extended key
2863 usage. This check is performed by attempting to match the OCSP
2864 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
2865 in the OCSP_CERTID structures of the response.
2868 *) Initial OCSP certificate verification added to OCSP_basic_verify()
2869 and related routines. This uses the standard OpenSSL certificate
2870 verify routines to perform initial checks (just CA validity) and
2871 to obtain the certificate chain. Then additional checks will be
2872 performed on the chain. Currently the root CA is checked to see
2873 if it is explicitly trusted for OCSP signing. This is used to set
2874 a root CA as a global signing root: that is any certificate that
2875 chains to that CA is an acceptable OCSP signing certificate.
2878 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
2879 extensions from a separate configuration file.
2880 As when reading extensions from the main configuration file,
2881 the '-extensions ...' option may be used for specifying the
2883 [Massimiliano Pala <madwolf@comune.modena.it>]
2885 *) New OCSP utility. Allows OCSP requests to be generated or
2886 read. The request can be sent to a responder and the output
2887 parsed, outputed or printed in text form. Not complete yet:
2888 still needs to check the OCSP response validity.
2891 *) New subcommands for 'openssl ca':
2892 'openssl ca -status <serial>' prints the status of the cert with
2893 the given serial number (according to the index file).
2894 'openssl ca -updatedb' updates the expiry status of certificates
2896 [Massimiliano Pala <madwolf@comune.modena.it>]
2898 *) New '-newreq-nodes' command option to CA.pl. This is like
2899 '-newreq', but calls 'openssl req' with the '-nodes' option
2900 so that the resulting key is not encrypted.
2901 [Damien Miller <djm@mindrot.org>]
2903 *) New configuration for the GNU Hurd.
2904 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
2906 *) Initial code to implement OCSP basic response verify. This
2907 is currently incomplete. Currently just finds the signer's
2908 certificate and verifies the signature on the response.
2911 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
2912 value of OPENSSLDIR. This is available via the new '-d' option
2913 to 'openssl version', and is also included in 'openssl version -a'.
2916 *) Allowing defining memory allocation callbacks that will be given
2917 file name and line number information in additional arguments
2918 (a const char* and an int). The basic functionality remains, as
2919 well as the original possibility to just replace malloc(),
2920 realloc() and free() by functions that do not know about these
2921 additional arguments. To register and find out the current
2922 settings for extended allocation functions, the following
2923 functions are provided:
2925 CRYPTO_set_mem_ex_functions
2926 CRYPTO_set_locked_mem_ex_functions
2927 CRYPTO_get_mem_ex_functions
2928 CRYPTO_get_locked_mem_ex_functions
2930 These work the same way as CRYPTO_set_mem_functions and friends.
2931 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
2932 extended allocation function is enabled.
2933 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
2934 a conventional allocation function is enabled.
2935 [Richard Levitte, Bodo Moeller]
2937 *) Finish off removing the remaining LHASH function pointer casts.
2938 There should no longer be any prototype-casting required when using
2939 the LHASH abstraction, and any casts that remain are "bugs". See
2940 the callback types and macros at the head of lhash.h for details
2941 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
2944 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
2945 If /dev/[u]random devices are not available or do not return enough
2946 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
2948 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
2949 /etc/entropy will be queried once each in this sequence, quering stops
2950 when enough entropy was collected without querying more sockets.
2953 *) Change the Unix RAND_poll() variant to be able to poll several
2954 random devices, as specified by DEVRANDOM, until a sufficient amount
2955 of data has been collected. We spend at most 10 ms on each file
2956 (select timeout) and read in non-blocking mode. DEVRANDOM now
2957 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
2958 (previously it was just the string "/dev/urandom"), so on typical
2959 platforms the 10 ms delay will never occur.
2960 Also separate out the Unix variant to its own file, rand_unix.c.
2961 For VMS, there's a currently-empty rand_vms.c.
2964 *) Move OCSP client related routines to ocsp_cl.c. These
2965 provide utility functions which an application needing
2966 to issue a request to an OCSP responder and analyse the
2967 response will typically need: as opposed to those which an
2968 OCSP responder itself would need which will be added later.
2970 OCSP_request_sign() signs an OCSP request with an API similar
2971 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
2972 response. OCSP_response_get1_basic() extracts basic response
2973 from response. OCSP_resp_find_status(): finds and extracts status
2974 information from an OCSP_CERTID structure (which will be created
2975 when the request structure is built). These are built from lower
2976 level functions which work on OCSP_SINGLERESP structures but
2977 wont normally be used unless the application wishes to examine
2978 extensions in the OCSP response for example.
2980 Replace nonce routines with a pair of functions.
2981 OCSP_request_add1_nonce() adds a nonce value and optionally
2982 generates a random value. OCSP_check_nonce() checks the
2983 validity of the nonce in an OCSP response.
2986 *) Change function OCSP_request_add() to OCSP_request_add0_id().
2987 This doesn't copy the supplied OCSP_CERTID and avoids the
2988 need to free up the newly created id. Change return type
2989 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
2990 This can then be used to add extensions to the request.
2991 Deleted OCSP_request_new(), since most of its functionality
2992 is now in OCSP_REQUEST_new() (and the case insensitive name
2993 clash) apart from the ability to set the request name which
2994 will be added elsewhere.
2997 *) Update OCSP API. Remove obsolete extensions argument from
2998 various functions. Extensions are now handled using the new
2999 OCSP extension code. New simple OCSP HTTP function which
3000 can be used to send requests and parse the response.
3003 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3004 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3005 uses the special reorder version of SET OF to sort the attributes
3006 and reorder them to match the encoded order. This resolves a long
3007 standing problem: a verify on a PKCS7 structure just after signing
3008 it used to fail because the attribute order did not match the
3009 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3010 it uses the received order. This is necessary to tolerate some broken
3011 software that does not order SET OF. This is handled by encoding
3012 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3013 to produce the required SET OF.
3016 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3017 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3018 files to get correct declarations of the ASN.1 item variables.
3021 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3022 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3023 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3024 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3025 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3026 ASN1_ITEM and no wrapper functions.
3029 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3030 replace the old function pointer based I/O routines. Change most of
3031 the *_d2i_bio() and *_d2i_fp() functions to use these.
3034 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3035 lines, recognice more "algorithms" that can be deselected, and make
3036 it complain about algorithm deselection that isn't recognised.
3039 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3040 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3041 to use new functions. Add NO_ASN1_OLD which can be set to remove
3042 some old style ASN1 functions: this can be used to determine if old
3043 code will still work when these eventually go away.
3046 *) New extension functions for OCSP structures, these follow the
3047 same conventions as certificates and CRLs.
3050 *) New function X509V3_add1_i2d(). This automatically encodes and
3051 adds an extension. Its behaviour can be customised with various
3052 flags to append, replace or delete. Various wrappers added for
3053 certifcates and CRLs.
3056 *) Fix to avoid calling the underlying ASN1 print routine when
3057 an extension cannot be parsed. Correct a typo in the
3058 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3061 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3062 entries for variables.
3065 *) Add functionality to apps/openssl.c for detecting locking
3066 problems: As the program is single-threaded, all we have
3067 to do is register a locking callback using an array for
3068 storing which locks are currently held by the program.
3071 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3072 SSL_get_ex_data_X509_STORE_idx(), which is used in
3073 ssl_verify_cert_chain() and thus can be called at any time
3074 during TLS/SSL handshakes so that thread-safety is essential.
3075 Unfortunately, the ex_data design is not at all suited
3076 for multi-threaded use, so it probably should be abolished.
3079 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3080 [Broadcom, tweaked and integrated by Geoff Thorpe]
3082 *) Move common extension printing code to new function
3083 X509V3_print_extensions(). Reorganise OCSP print routines and
3084 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3087 *) New function X509_signature_print() to remove duplication in some
3091 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3092 set (this was treated exactly the same as SET OF previously). This
3093 is used to reorder the STACK representing the structure to match the
3094 encoding. This will be used to get round a problem where a PKCS7
3095 structure which was signed could not be verified because the STACK
3096 order did not reflect the encoded order.
3099 *) Reimplement the OCSP ASN1 module using the new code.
3102 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3103 for its ASN1 operations. The old style function pointers still exist
3104 for now but they will eventually go away.
3107 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3108 completely replaces the old ASN1 functionality with a table driven
3109 encoder and decoder which interprets an ASN1_ITEM structure describing
3110 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3111 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3112 has also been converted to the new form.
3115 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3116 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3117 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3118 for negative moduli.
3121 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3122 of not touching the result's sign bit.
3125 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3129 *) Changed the LHASH code to use prototypes for callbacks, and created
3130 macros to declare and implement thin (optionally static) functions
3131 that provide type-safety and avoid function pointer casting for the
3132 type-specific callbacks.
3135 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3137 [Veers Staats <staatsvr@asc.hpc.mil>,
3138 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3140 *) Reformat the FAQ so the different questions and answers can be divided
3141 in sections depending on the subject.
3144 *) Have the zlib compression code load ZLIB.DLL dynamically under
3148 *) New function BN_mod_sqrt for computing square roots modulo a prime
3149 (using the probabilistic Tonelli-Shanks algorithm unless
3150 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3151 be handled deterministically).
3152 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3154 *) Make BN_mod_inverse faster by explicitly handling small quotients
3155 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3156 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3159 *) New function BN_kronecker.
3162 *) Fix BN_gcd so that it works on negative inputs; the result is
3163 positive unless both parameters are zero.
3164 Previously something reasonably close to an infinite loop was
3165 possible because numbers could be growing instead of shrinking
3166 in the implementation of Euclid's algorithm.
3169 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3170 sign of the number in question.
3172 Fix BN_is_word(a,w) to work correctly for w == 0.
3174 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3175 because its test if the absolute value of 'a' equals 'w'.
3176 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3177 it exists mostly for use in the implementations of BN_is_zero(),
3178 BN_is_one(), and BN_is_word().
3181 *) New function BN_swap.
3184 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3185 the exponentiation functions are more likely to produce reasonable
3186 results on negative inputs.
3189 *) Change BN_mod_mul so that the result is always non-negative.
3190 Previously, it could be negative if one of the factors was negative;
3191 I don't think anyone really wanted that behaviour.
3194 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3195 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3196 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3197 and add new functions:
3206 BN_mod_lshift1_quick
3210 These functions always generate non-negative results.
3212 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3213 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3215 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3216 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3217 be reduced modulo m.
3218 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3221 The following entry accidentily appeared in the CHANGES file
3222 distributed with OpenSSL 0.9.7. The modifications described in
3223 it do *not* apply to OpenSSL 0.9.7.
3225 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3226 was actually never needed) and in BN_mul(). The removal in BN_mul()
3227 required a small change in bn_mul_part_recursive() and the addition
3228 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3229 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3230 bn_sub_words() and bn_add_words() except they take arrays with
3235 *) In 'openssl passwd', verify passwords read from the terminal
3236 unless the '-salt' option is used (which usually means that
3237 verification would just waste user's time since the resulting
3238 hash is going to be compared with some given password hash)
3239 or the new '-noverify' option is used.
3241 This is an incompatible change, but it does not affect
3242 non-interactive use of 'openssl passwd' (passwords on the command
3243 line, '-stdin' option, '-in ...' option) and thus should not
3247 *) Remove all references to RSAref, since there's no more need for it.
3250 *) Make DSO load along a path given through an environment variable
3251 (SHLIB_PATH) with shl_load().
3254 *) Constify the ENGINE code as a result of BIGNUM constification.
3255 Also constify the RSA code and most things related to it. In a
3256 few places, most notable in the depth of the ASN.1 code, ugly
3257 casts back to non-const were required (to be solved at a later
3261 *) Make it so the openssl application has all engines loaded by default.
3264 *) Constify the BIGNUM routines a little more.
3267 *) Add the following functions:
3269 ENGINE_load_cswift()
3271 ENGINE_load_atalla()
3273 ENGINE_load_builtin_engines()
3275 That way, an application can itself choose if external engines that
3276 are built-in in OpenSSL shall ever be used or not. The benefit is
3277 that applications won't have to be linked with libdl or other dso
3278 libraries unless it's really needed.
3280 Changed 'openssl engine' to load all engines on demand.
3281 Changed the engine header files to avoid the duplication of some
3282 declarations (they differed!).
3285 *) 'openssl engine' can now list capabilities.
3288 *) Better error reporting in 'openssl engine'.
3291 *) Never call load_dh_param(NULL) in s_server.
3294 *) Add engine application. It can currently list engines by name and
3295 identity, and test if they are actually available.
3298 *) Improve RPM specification file by forcing symbolic linking and making
3299 sure the installed documentation is also owned by root.root.
3300 [Damien Miller <djm@mindrot.org>]
3302 *) Give the OpenSSL applications more possibilities to make use of
3303 keys (public as well as private) handled by engines.
3306 *) Add OCSP code that comes from CertCo.
3309 *) Add VMS support for the Rijndael code.
3312 *) Added untested support for Nuron crypto accelerator.
3315 *) Add support for external cryptographic devices. This code was
3316 previously distributed separately as the "engine" branch.
3317 [Geoff Thorpe, Richard Levitte]
3319 *) Rework the filename-translation in the DSO code. It is now possible to
3320 have far greater control over how a "name" is turned into a filename
3321 depending on the operating environment and any oddities about the
3322 different shared library filenames on each system.
3325 *) Support threads on FreeBSD-elf in Configure.
3328 *) Fix for SHA1 assembly problem with MASM: it produces
3329 warnings about corrupt line number information when assembling
3330 with debugging information. This is caused by the overlapping
3332 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3335 NCONF_get_number() has no error checking at all. As a replacement,
3336 NCONF_get_number_e() is defined (_e for "error checking") and is
3337 promoted strongly. The old NCONF_get_number is kept around for
3338 binary backward compatibility.
3339 Make it possible for methods to load from something other than a BIO,
3340 by providing a function pointer that is given a name instead of a BIO.
3341 For example, this could be used to load configuration data from an
3345 *) Fix for non blocking accept BIOs. Added new I/O special reason
3346 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3347 with non blocking I/O was not possible because no retry code was
3348 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3352 *) Added the beginnings of Rijndael support.
3355 *) Fix for bug in DirectoryString mask setting. Add support for
3356 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3357 to allow certificate printing to more controllable, additional
3358 'certopt' option to 'x509' to allow new printing options to be
3362 *) Clean old EAY MD5 hack from e_os.h.
3365 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3367 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3368 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3369 [Joe Orton, Steve Henson]
3371 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3373 *) Fix additional bug revealed by the NISCC test suite:
3375 Stop bug triggering large recursion when presented with
3376 certain ASN.1 tags (CVE-2003-0851)
3379 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3381 *) Fix various bugs revealed by running the NISCC test suite:
3383 Stop out of bounds reads in the ASN1 code when presented with
3384 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3386 If verify callback ignores invalid public key errors don't try to check
3387 certificate signature with the NULL public key.
3391 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3392 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3396 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3397 extra data after the compression methods not only for TLS 1.0
3398 but also for SSL 3.0 (as required by the specification).
3399 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3401 *) Change X509_certificate_type() to mark the key as exported/exportable
3402 when it's 512 *bits* long, not 512 bytes.
3405 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3407 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3408 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3409 a protocol version number mismatch like a decryption error
3410 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3413 *) Turn on RSA blinding by default in the default implementation
3414 to avoid a timing attack. Applications that don't want it can call
3415 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3416 They would be ill-advised to do so in most cases.
3417 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3419 *) Change RSA blinding code so that it works when the PRNG is not
3420 seeded (in this case, the secret RSA exponent is abused as
3421 an unpredictable seed -- if it is not unpredictable, there
3422 is no point in blinding anyway). Make RSA blinding thread-safe
3423 by remembering the creator's thread ID in rsa->blinding and
3424 having all other threads use local one-time blinding factors
3425 (this requires more computation than sharing rsa->blinding, but
3426 avoids excessive locking; and if an RSA object is not shared
3427 between threads, blinding will still be very fast).
3430 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3432 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3433 via timing by performing a MAC computation even if incorrrect
3434 block cipher padding has been found. This is a countermeasure
3435 against active attacks where the attacker has to distinguish
3436 between bad padding and a MAC verification error. (CVE-2003-0078)
3438 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3439 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3440 Martin Vuagnoux (EPFL, Ilion)]
3442 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3444 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3445 memory from it's contents. This is done with a counter that will
3446 place alternating values in each byte. This can be used to solve
3447 two issues: 1) the removal of calls to memset() by highly optimizing
3448 compilers, and 2) cleansing with other values than 0, since those can
3449 be read through on certain media, for example a swap space on disk.
3452 *) Bugfix: client side session caching did not work with external caching,
3453 because the session->cipher setting was not restored when reloading
3454 from the external cache. This problem was masked, when
3455 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3456 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3459 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3460 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3461 [Zeev Lieber <zeev-l@yahoo.com>]
3463 *) Undo an undocumented change introduced in 0.9.6e which caused
3464 repeated calls to OpenSSL_add_all_ciphers() and
3465 OpenSSL_add_all_digests() to be ignored, even after calling
3469 *) Change the default configuration reader to deal with last line not
3470 being properly terminated.
3473 *) Change X509_NAME_cmp() so it applies the special rules on handling
3474 DN values that are of type PrintableString, as well as RDNs of type
3475 emailAddress where the value has the type ia5String.
3476 [stefank@valicert.com via Richard Levitte]
3478 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3479 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3480 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3481 the bitwise-OR of the two for use by the majority of applications
3482 wanting this behaviour, and update the docs. The documented
3483 behaviour and actual behaviour were inconsistent and had been
3484 changing anyway, so this is more a bug-fix than a behavioural
3486 [Geoff Thorpe, diagnosed by Nadav Har'El]
3488 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3489 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3492 *) Fix initialization code race conditions in
3493 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3494 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3495 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3496 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3497 ssl2_get_cipher_by_char(),
3498 ssl3_get_cipher_by_char().
3499 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3501 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3502 the cached sessions are flushed, as the remove_cb() might use ex_data
3503 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3504 (see [openssl.org #212]).
3505 [Geoff Thorpe, Lutz Jaenicke]
3507 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3508 length, instead of the encoding length to d2i_ASN1_OBJECT.
3511 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3513 *) [In 0.9.6g-engine release:]
3514 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3515 [Lynn Gazis <lgazis@rainbow.com>]
3517 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3519 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3520 and get fix the header length calculation.
3521 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3522 Alon Kantor <alonk@checkpoint.com> (and others),
3525 *) Use proper error handling instead of 'assertions' in buffer
3526 overflow checks added in 0.9.6e. This prevents DoS (the
3527 assertions could call abort()).
3528 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3530 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3532 *) Add various sanity checks to asn1_get_length() to reject
3533 the ASN1 length bytes if they exceed sizeof(long), will appear
3534 negative or the content length exceeds the length of the
3536 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3538 *) Fix cipher selection routines: ciphers without encryption had no flags
3539 for the cipher strength set and where therefore not handled correctly
3540 by the selection routines (PR #130).
3543 *) Fix EVP_dsa_sha macro.
3547 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3548 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3549 that was added in OpenSSL 0.9.6d.
3551 As the countermeasure turned out to be incompatible with some
3552 broken SSL implementations, the new option is part of SSL_OP_ALL.
3553 SSL_OP_ALL is usually employed when compatibility with weird SSL
3554 implementations is desired (e.g. '-bugs' option to 's_client' and
3555 's_server'), so the new option is automatically set in many
3559 *) Changes in security patch:
3561 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3562 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3563 Air Force Materiel Command, USAF, under agreement number
3566 *) Add various sanity checks to asn1_get_length() to reject
3567 the ASN1 length bytes if they exceed sizeof(long), will appear
3568 negative or the content length exceeds the length of the
3569 supplied buffer. (CVE-2002-0659)
3570 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3572 *) Assertions for various potential buffer overflows, not known to
3574 [Ben Laurie (CHATS)]
3576 *) Various temporary buffers to hold ASCII versions of integers were
3577 too small for 64 bit platforms. (CVE-2002-0655)
3578 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3580 *) Remote buffer overflow in SSL3 protocol - an attacker could
3581 supply an oversized session ID to a client. (CVE-2002-0656)
3582 [Ben Laurie (CHATS)]
3584 *) Remote buffer overflow in SSL2 protocol - an attacker could
3585 supply an oversized client master key. (CVE-2002-0656)
3586 [Ben Laurie (CHATS)]
3588 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3590 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3591 encoded as NULL) with id-dsa-with-sha1.
3592 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3594 *) Check various X509_...() return values in apps/req.c.
3595 [Nils Larsch <nla@trustcenter.de>]
3597 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3598 an end-of-file condition would erronously be flagged, when the CRLF
3599 was just at the end of a processed block. The bug was discovered when
3600 processing data through a buffering memory BIO handing the data to a
3601 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3602 <ptsekov@syntrex.com> and Nedelcho Stanev.
3605 *) Implement a countermeasure against a vulnerability recently found
3606 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3607 before application data chunks to avoid the use of known IVs
3608 with data potentially chosen by the attacker.
3611 *) Fix length checks in ssl3_get_client_hello().
3614 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3615 to prevent ssl3_read_internal() from incorrectly assuming that
3616 ssl3_read_bytes() found application data while handshake
3617 processing was enabled when in fact s->s3->in_read_app_data was
3618 merely automatically cleared during the initial handshake.
3619 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3621 *) Fix object definitions for Private and Enterprise: they were not
3622 recognized in their shortname (=lowercase) representation. Extend
3623 obj_dat.pl to issue an error when using undefined keywords instead
3624 of silently ignoring the problem (Svenning Sorensen
3625 <sss@sss.dnsalias.net>).
3628 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3629 generators, i.e. generators other than 2 and 5. (Previously, the
3630 code did not properly initialise the 'add' and 'rem' values to
3631 BN_generate_prime().)
3633 In the new general case, we do not insist that 'generator' is
3634 actually a primitive root: This requirement is rather pointless;
3635 a generator of the order-q subgroup is just as good, if not
3639 *) Map new X509 verification errors to alerts. Discovered and submitted by
3640 Tom Wu <tom@arcot.com>.
3643 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
3644 returning non-zero before the data has been completely received
3645 when using non-blocking I/O.
3646 [Bodo Moeller; problem pointed out by John Hughes]
3648 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
3649 [Ben Laurie, Lutz Jaenicke]
3651 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
3652 Yoram Zahavi <YoramZ@gilian.com>).
3655 *) Add information about CygWin 1.3 and on, and preserve proper
3656 configuration for the versions before that.
3657 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3659 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
3660 check whether we deal with a copy of a session and do not delete from
3661 the cache in this case. Problem reported by "Izhar Shoshani Levi"
3662 <izhar@checkpoint.com>.
3665 *) Do not store session data into the internal session cache, if it
3666 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
3667 flag is set). Proposed by Aslam <aslam@funk.com>.
3670 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
3674 *) [In 0.9.6d-engine release:]
3675 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3676 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3678 *) Add the configuration target linux-s390x.
3679 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
3681 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
3682 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
3683 variable as an indication that a ClientHello message has been
3684 received. As the flag value will be lost between multiple
3685 invocations of ssl3_accept when using non-blocking I/O, the
3686 function may not be aware that a handshake has actually taken
3687 place, thus preventing a new session from being added to the
3690 To avoid this problem, we now set s->new_session to 2 instead of
3691 using a local variable.
3692 [Lutz Jaenicke, Bodo Moeller]
3694 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
3695 if the SSL_R_LENGTH_MISMATCH error is detected.
3696 [Geoff Thorpe, Bodo Moeller]
3698 *) New 'shared_ldflag' column in Configure platform table.
3701 *) Fix EVP_CIPHER_mode macro.
3702 ["Dan S. Camper" <dan@bti.net>]
3704 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
3705 type, we must throw them away by setting rr->length to 0.
3706 [D P Chang <dpc@qualys.com>]
3708 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
3710 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
3711 <Dominikus.Scherkl@biodata.com>. (The previous implementation
3712 worked incorrectly for those cases where range = 10..._2 and
3713 3*range is two bits longer than range.)
3716 *) Only add signing time to PKCS7 structures if it is not already
3720 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
3721 OBJ_ld_ce should be OBJ_id_ce.
3722 Also some ip-pda OIDs in crypto/objects/objects.txt were
3723 incorrect (cf. RFC 3039).
3724 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
3726 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
3727 returns early because it has nothing to do.
3728 [Andy Schneider <andy.schneider@bjss.co.uk>]
3730 *) [In 0.9.6c-engine release:]
3731 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
3732 [Andy Schneider <andy.schneider@bjss.co.uk>]
3734 *) [In 0.9.6c-engine release:]
3735 Add support for Cryptographic Appliance's keyserver technology.
3736 (Use engine 'keyclient')
3737 [Cryptographic Appliances and Geoff Thorpe]
3739 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
3740 is called via tools/c89.sh because arguments have to be
3741 rearranged (all '-L' options must appear before the first object
3743 [Richard Shapiro <rshapiro@abinitio.com>]
3745 *) [In 0.9.6c-engine release:]
3746 Add support for Broadcom crypto accelerator cards, backported
3748 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
3750 *) [In 0.9.6c-engine release:]
3751 Add support for SureWare crypto accelerator cards from
3752 Baltimore Technologies. (Use engine 'sureware')
3753 [Baltimore Technologies and Mark Cox]
3755 *) [In 0.9.6c-engine release:]
3756 Add support for crypto accelerator cards from Accelerated
3757 Encryption Processing, www.aep.ie. (Use engine 'aep')
3758 [AEP Inc. and Mark Cox]
3760 *) Add a configuration entry for gcc on UnixWare.
3761 [Gary Benson <gbenson@redhat.com>]
3763 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
3764 messages are stored in a single piece (fixed-length part and
3765 variable-length part combined) and fix various bugs found on the way.
3768 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
3769 instead. BIO_gethostbyname() does not know what timeouts are
3770 appropriate, so entries would stay in cache even when they have
3772 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
3774 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
3775 faced with a pathologically small ClientHello fragment that does
3776 not contain client_version: Instead of aborting with an error,
3777 simply choose the highest available protocol version (i.e.,
3778 TLS 1.0 unless it is disabled). In practice, ClientHello
3779 messages are never sent like this, but this change gives us
3780 strictly correct behaviour at least for TLS.
3783 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
3784 never resets s->method to s->ctx->method when called from within
3785 one of the SSL handshake functions.
3786 [Bodo Moeller; problem pointed out by Niko Baric]
3788 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
3789 (sent using the client's version number) if client_version is
3790 smaller than the protocol version in use. Also change
3791 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
3792 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
3793 the client will at least see that alert.
3796 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
3800 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
3801 client receives HelloRequest while in a handshake.
3802 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
3804 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
3805 should end in 'break', not 'goto end' which circuments various
3806 cleanups done in state SSL_ST_OK. But session related stuff
3807 must be disabled for SSL_ST_OK in the case that we just sent a
3810 Also avoid some overhead by not calling ssl_init_wbio_buffer()
3811 before just sending a HelloRequest.
3812 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
3814 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
3815 reveal whether illegal block cipher padding was found or a MAC
3816 verification error occured. (Neither SSLerr() codes nor alerts
3817 are directly visible to potential attackers, but the information
3818 may leak via logfiles.)
3820 Similar changes are not required for the SSL 2.0 implementation
3821 because the number of padding bytes is sent in clear for SSL 2.0,
3822 and the extra bytes are just ignored. However ssl/s2_pkt.c
3823 failed to verify that the purported number of padding bytes is in
3827 *) Add OpenUNIX-8 support including shared libraries
3828 (Boyd Lynn Gerber <gerberb@zenez.com>).
3831 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
3832 'wristwatch attack' using huge encoding parameters (cf.
3833 James H. Manger's CRYPTO 2001 paper). Note that the
3834 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
3835 encoding parameters and hence was not vulnerable.
3838 *) BN_sqr() bug fix.
3839 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
3841 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
3842 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
3843 followed by modular reduction.
3844 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
3846 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
3847 equivalent based on BN_pseudo_rand() instead of BN_rand().
3850 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
3851 This function was broken, as the check for a new client hello message
3852 to handle SGC did not allow these large messages.
3853 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
3856 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
3859 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
3860 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
3863 *) Rework the configuration and shared library support for Tru64 Unix.
3864 The configuration part makes use of modern compiler features and
3865 still retains old compiler behavior for those that run older versions
3866 of the OS. The shared library support part includes a variant that
3867 uses the RPATH feature, and is available through the special
3868 configuration target "alpha-cc-rpath", which will never be selected
3870 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
3872 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
3873 with the same message size as in ssl3_get_certificate_request().
3874 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
3875 messages might inadvertently be reject as too long.
3876 [Petr Lampa <lampa@fee.vutbr.cz>]
3878 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
3881 *) Modified SSL library such that the verify_callback that has been set
3882 specificly for an SSL object with SSL_set_verify() is actually being
3883 used. Before the change, a verify_callback set with this function was
3884 ignored and the verify_callback() set in the SSL_CTX at the time of
3885 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
3886 to allow the necessary settings.
3889 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
3890 explicitly to NULL, as at least on Solaris 8 this seems not always to be
3891 done automatically (in contradiction to the requirements of the C
3892 standard). This made problems when used from OpenSSH.
3895 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
3896 dh->length and always used
3898 BN_rand_range(priv_key, dh->p).
3900 BN_rand_range() is not necessary for Diffie-Hellman, and this
3901 specific range makes Diffie-Hellman unnecessarily inefficient if
3902 dh->length (recommended exponent length) is much smaller than the
3903 length of dh->p. We could use BN_rand_range() if the order of
3904 the subgroup was stored in the DH structure, but we only have
3909 BN_rand(priv_key, l, ...)
3911 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
3917 RSA_eay_public_encrypt
3918 RSA_eay_private_decrypt
3919 RSA_eay_private_encrypt (signing)
3920 RSA_eay_public_decrypt (signature verification)
3922 (default implementations for RSA_public_encrypt,
3923 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
3924 always reject numbers >= n.
3927 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
3928 to synchronize access to 'locking_thread'. This is necessary on
3929 systems where access to 'locking_thread' (an 'unsigned long'
3930 variable) is not atomic.
3933 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
3934 *before* setting the 'crypto_lock_rand' flag. The previous code had
3935 a race condition if 0 is a valid thread ID.
3936 [Travis Vitek <vitek@roguewave.com>]
3938 *) Add support for shared libraries under Irix.
3939 [Albert Chin-A-Young <china@thewrittenword.com>]
3941 *) Add configuration option to build on Linux on both big-endian and
3943 [Ralf Baechle <ralf@uni-koblenz.de>]
3945 *) Add the possibility to create shared libraries on HP-UX.
3948 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
3950 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
3951 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
3952 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
3953 PRNG state recovery was possible based on the output of
3954 one PRNG request appropriately sized to gain knowledge on
3955 'md' followed by enough consecutive 1-byte PRNG requests
3956 to traverse all of 'state'.
3958 1. When updating 'md_local' (the current thread's copy of 'md')
3959 during PRNG output generation, hash all of the previous
3960 'md_local' value, not just the half used for PRNG output.
3962 2. Make the number of bytes from 'state' included into the hash
3963 independent from the number of PRNG bytes requested.
3965 The first measure alone would be sufficient to avoid
3966 Markku-Juhani's attack. (Actually it had never occurred
3967 to me that the half of 'md_local' used for chaining was the
3968 half from which PRNG output bytes were taken -- I had always
3969 assumed that the secret half would be used.) The second
3970 measure makes sure that additional data from 'state' is never
3971 mixed into 'md_local' in small portions; this heuristically
3972 further strengthens the PRNG.
3975 *) Fix crypto/bn/asm/mips3.s.
3978 *) When only the key is given to "enc", the IV is undefined. Print out
3979 an error message in this case.
3982 *) Handle special case when X509_NAME is empty in X509 printing routines.
3985 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
3986 positive and less than q.
3989 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
3990 used: it isn't thread safe and the add_lock_callback should handle
3992 [Paul Rose <Paul.Rose@bridge.com>]
3994 *) Verify that incoming data obeys the block size in
3995 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
3999 [Ulf Möller, Bodo Möller]
4001 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4002 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4003 when fixing the server behaviour for backwards-compatible 'client
4004 hello' messages. (Note that the attack is impractical against
4005 SSL 3.0 and TLS 1.0 anyway because length and version checking
4006 means that the probability of guessing a valid ciphertext is
4007 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4010 Before 0.9.5, the countermeasure (hide the error by generating a
4011 random 'decryption result') did not work properly because
4012 ERR_clear_error() was missing, meaning that SSL_get_error() would
4013 detect the supposedly ignored error.
4015 Both problems are now fixed.
4018 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4019 (previously it was 1024).
4022 *) Fix for compatibility mode trust settings: ignore trust settings
4023 unless some valid trust or reject settings are present.
4026 *) Fix for blowfish EVP: its a variable length cipher.
4029 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4030 parameters in DSA public key structures and return an error in the
4031 DSA routines if parameters are absent.
4034 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4035 in the current directory if neither $RANDFILE nor $HOME was set.
4036 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4037 caused some confusion to Windows users who haven't defined $HOME.
4038 Thus RAND_file_name() is changed again: e_os.h can define a
4039 DEFAULT_HOME, which will be used if $HOME is not set.
4040 For Windows, we use "C:"; on other platforms, we still require
4041 environment variables.
4043 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4044 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4045 having multiple threads call RAND_poll() concurrently.
4048 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4049 combination of a flag and a thread ID variable.
4050 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4051 flag), *other* threads can enter ssleay_add_bytes without obeying
4052 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4053 that they do not hold after the first thread unsets add_do_not_lock).
4056 *) Change bctest again: '-x' expressions are not available in all
4060 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4062 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4063 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4065 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4066 the default extension for executables, if any. Also, make the perl
4067 scripts that use symlink() to test if it really exists and use "cp"
4068 if it doesn't. All this made OpenSSL compilable and installable in
4072 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4073 If SEQUENCE is length is indefinite just set c->slen to the total
4074 amount of data available.
4075 [Steve Henson, reported by shige@FreeBSD.org]
4076 [This change does not apply to 0.9.7.]
4078 *) Change bctest to avoid here-documents inside command substitution
4079 (workaround for FreeBSD /bin/sh bug).
4080 For compatibility with Ultrix, avoid shell functions (introduced
4081 in the bctest version that searches along $PATH).
4084 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4085 with des_encrypt() defined on some operating systems, like Solaris
4089 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4090 On the Importance of Eliminating Errors in Cryptographic
4091 Computations, J. Cryptology 14 (2001) 2, 101-119,
4092 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4095 *) MIPS assembler BIGNUM division bug fix.
4098 *) Disabled incorrect Alpha assembler code.
4101 *) Fix PKCS#7 decode routines so they correctly update the length
4102 after reading an EOC for the EXPLICIT tag.
4104 [This change does not apply to 0.9.7.]
4106 *) Fix bug in PKCS#12 key generation routines. This was triggered
4107 if a 3DES key was generated with a 0 initial byte. Include
4108 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4109 (but broken) behaviour.
4112 *) Enhance bctest to search for a working bc along $PATH and print
4114 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4116 *) Fix memory leaks in err.c: free err_data string if necessary;
4117 don't write to the wrong index in ERR_set_error_data.
4120 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4124 *) Replace rdtsc with _emit statements for VC++ version 5.
4125 [Jeremy Cooper <jeremy@baymoo.org>]
4127 *) Make it possible to reuse SSLv2 sessions.
4130 *) In copy_email() check for >= 0 as a return value for
4131 X509_NAME_get_index_by_NID() since 0 is a valid index.
4132 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4134 *) Avoid coredump with unsupported or invalid public keys by checking if
4135 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4136 PKCS7_verify() fails with non detached data.
4139 *) Don't use getenv in library functions when run as setuid/setgid.
4140 New function OPENSSL_issetugid().
4143 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4144 due to incorrect handling of multi-threading:
4146 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4148 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4150 3. Count how many times MemCheck_off() has been called so that
4151 nested use can be treated correctly. This also avoids
4152 inband-signalling in the previous code (which relied on the
4153 assumption that thread ID 0 is impossible).
4156 *) Add "-rand" option also to s_client and s_server.
4159 *) Fix CPU detection on Irix 6.x.
4160 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4161 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4163 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4166 [This change does not apply to 0.9.7.]
4168 *) Use the cached encoding of an X509_NAME structure rather than
4169 copying it. This is apparently the reason for the libsafe "errors"
4170 but the code is actually correct.
4173 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4174 Bleichenbacher's DSA attack.
4175 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4176 to be set and top=0 forces the highest bit to be set; top=-1 is new
4177 and leaves the highest bit random.
4178 [Ulf Moeller, Bodo Moeller]
4180 *) In the NCONF_...-based implementations for CONF_... queries
4181 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4182 a temporary CONF structure with the data component set to NULL
4183 (which gives segmentation faults in lh_retrieve).
4184 Instead, use NULL for the CONF pointer in CONF_get_string and
4185 CONF_get_number (which may use environment variables) and directly
4186 return NULL from CONF_get_section.
4189 *) Fix potential buffer overrun for EBCDIC.
4192 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4193 keyUsage if basicConstraints absent for a CA.
4196 *) Make SMIME_write_PKCS7() write mail header values with a format that
4197 is more generally accepted (no spaces before the semicolon), since
4198 some programs can't parse those values properly otherwise. Also make
4199 sure BIO's that break lines after each write do not create invalid
4203 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4204 macros previously used would not encode an empty SEQUENCE OF
4205 and break the signature.
4207 [This change does not apply to 0.9.7.]
4209 *) Zero the premaster secret after deriving the master secret in
4213 *) Add some EVP_add_digest_alias registrations (as found in
4214 OpenSSL_add_all_digests()) to SSL_library_init()
4215 aka OpenSSL_add_ssl_algorithms(). This provides improved
4216 compatibility with peers using X.509 certificates
4217 with unconventional AlgorithmIdentifier OIDs.
4220 *) Fix for Irix with NO_ASM.
4221 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4223 *) ./config script fixes.
4224 [Ulf Moeller, Richard Levitte]
4226 *) Fix 'openssl passwd -1'.
4229 *) Change PKCS12_key_gen_asc() so it can cope with non null
4230 terminated strings whose length is passed in the passlen
4231 parameter, for example from PEM callbacks. This was done
4232 by adding an extra length parameter to asc2uni().
4233 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4235 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4236 call failed, free the DSA structure.
4239 *) Fix to uni2asc() to cope with zero length Unicode strings.
4240 These are present in some PKCS#12 files.
4243 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4244 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4245 when writing a 32767 byte record.
4246 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4248 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4249 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4251 (RSA objects have a reference count access to which is protected
4252 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4253 so they are meant to be shared between threads.)
4254 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4255 "Reddie, Steven" <Steven.Reddie@ca.com>]
4257 *) Fix a deadlock in CRYPTO_mem_leaks().
4260 *) Use better test patterns in bntest.
4263 *) rand_win.c fix for Borland C.
4266 *) BN_rshift bugfix for n == 0.
4269 *) Add a 'bctest' script that checks for some known 'bc' bugs
4270 so that 'make test' does not abort just because 'bc' is broken.
4273 *) Store verify_result within SSL_SESSION also for client side to
4274 avoid potential security hole. (Re-used sessions on the client side
4275 always resulted in verify_result==X509_V_OK, not using the original
4276 result of the server certificate verification.)
4279 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4280 SSL3_RT_APPLICATION_DATA, return 0.
4281 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4285 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4286 releases, have been re-implemented by renaming the previous
4287 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4288 and ssl3_read_internal, respectively, and adding 'peek' parameters
4289 to them. The new ssl[23]_{read,peek} functions are calls to
4290 ssl[23]_read_internal with the 'peek' flag set appropriately.
4291 A 'peek' parameter has also been added to ssl3_read_bytes, which
4292 does the actual work for ssl3_read_internal.
4295 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4296 the method-specific "init()" handler. Also clean up ex_data after
4297 calling the method-specific "finish()" handler. Previously, this was
4298 happening the other way round.
4301 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4302 The previous value, 12, was not always sufficient for BN_mod_exp().
4305 *) Make sure that shared libraries get the internal name engine with
4306 the full version number and not just 0. This should mark the
4307 shared libraries as not backward compatible. Of course, this should
4308 be changed again when we can guarantee backward binary compatibility.
4311 *) Fix typo in get_cert_by_subject() in by_dir.c
4312 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4314 *) Rework the system to generate shared libraries:
4316 - Make note of the expected extension for the shared libraries and
4317 if there is a need for symbolic links from for example libcrypto.so.0
4318 to libcrypto.so.0.9.7. There is extended info in Configure for
4321 - Make as few rebuilds of the shared libraries as possible.
4323 - Still avoid linking the OpenSSL programs with the shared libraries.
4325 - When installing, install the shared libraries separately from the
4329 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4331 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4332 and not in SSL_clear because the latter is also used by the
4333 accept/connect functions; previously, the settings made by
4334 SSL_set_read_ahead would be lost during the handshake.
4335 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4337 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4338 Previously, it would create entries for disableed algorithms no
4342 *) Added several new manual pages for SSL_* function.
4345 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4347 *) In ssl23_get_client_hello, generate an error message when faced
4348 with an initial SSL 3.0/TLS record that is too small to contain the
4349 first two bytes of the ClientHello message, i.e. client_version.
4350 (Note that this is a pathologic case that probably has never happened
4351 in real life.) The previous approach was to use the version number
4352 from the record header as a substitute; but our protocol choice
4353 should not depend on that one because it is not authenticated
4354 by the Finished messages.
4357 *) More robust randomness gathering functions for Windows.
4358 [Jeffrey Altman <jaltman@columbia.edu>]
4360 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4361 not set then we don't setup the error code for issuer check errors
4362 to avoid possibly overwriting other errors which the callback does
4363 handle. If an application does set the flag then we assume it knows
4364 what it is doing and can handle the new informational codes
4368 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4369 a general "ANY" type, as such it should be able to decode anything
4370 including tagged types. However it didn't check the class so it would
4371 wrongly interpret tagged types in the same way as their universal
4372 counterpart and unknown types were just rejected. Changed so that the
4373 tagged and unknown types are handled in the same way as a SEQUENCE:
4374 that is the encoding is stored intact. There is also a new type
4375 "V_ASN1_OTHER" which is used when the class is not universal, in this
4376 case we have no idea what the actual type is so we just lump them all
4380 *) On VMS, stdout may very well lead to a file that is written to
4381 in a record-oriented fashion. That means that every write() will
4382 write a separate record, which will be read separately by the
4383 programs trying to read from it. This can be very confusing.
4385 The solution is to put a BIO filter in the way that will buffer
4386 text until a linefeed is reached, and then write everything a
4387 line at a time, so every record written will be an actual line,
4388 not chunks of lines and not (usually doesn't happen, but I've
4389 seen it once) several lines in one record. BIO_f_linebuffer() is
4392 Currently, it's a VMS-only method, because that's where it has
4393 been tested well enough.
4396 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4397 it can return incorrect results.
4398 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4399 but it was in 0.9.6-beta[12].)
4402 *) Disable the check for content being present when verifying detached
4403 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4404 include zero length content when signing messages.
4407 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4408 BIO_ctrl (for BIO pairs).
4411 *) Add DSO method for VMS.
4414 *) Bug fix: Montgomery multiplication could produce results with the
4418 *) Add RPM specification openssl.spec and modify it to build three
4419 packages. The default package contains applications, application
4420 documentation and run-time libraries. The devel package contains
4421 include files, static libraries and function documentation. The
4422 doc package contains the contents of the doc directory. The original
4423 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4426 *) Add a large number of documentation files for many SSL routines.
4427 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4429 *) Add a configuration entry for Sony News 4.
4430 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4432 *) Don't set the two most significant bits to one when generating a
4433 random number < q in the DSA library.
4436 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4437 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4438 the underlying transport is blocking) if a handshake took place.
4439 (The default behaviour is needed by applications such as s_client
4440 and s_server that use select() to determine when to use SSL_read;
4441 but for applications that know in advance when to expect data, it
4442 just makes things more complicated.)
4445 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4449 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4450 work better on such systems.
4451 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4453 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4454 Update PKCS12_parse() so it copies the friendlyName and the
4455 keyid to the certificates aux info.
4458 *) Fix bug in PKCS7_verify() which caused an infinite loop
4459 if there was more than one signature.
4460 [Sven Uszpelkat <su@celocom.de>]
4462 *) Major change in util/mkdef.pl to include extra information
4463 about each symbol, as well as presentig variables as well
4464 as functions. This change means that there's n more need
4465 to rebuild the .num files when some algorithms are excluded.
4468 *) Allow the verify time to be set by an application,
4469 rather than always using the current time.
4472 *) Phase 2 verify code reorganisation. The certificate
4473 verify code now looks up an issuer certificate by a
4474 number of criteria: subject name, authority key id
4475 and key usage. It also verifies self signed certificates
4476 by the same criteria. The main comparison function is
4477 X509_check_issued() which performs these checks.
4479 Lot of changes were necessary in order to support this
4480 without completely rewriting the lookup code.
4482 Authority and subject key identifier are now cached.
4484 The LHASH 'certs' is X509_STORE has now been replaced
4485 by a STACK_OF(X509_OBJECT). This is mainly because an
4486 LHASH can't store or retrieve multiple objects with
4487 the same hash value.
4489 As a result various functions (which were all internal
4490 use only) have changed to handle the new X509_STORE
4491 structure. This will break anything that messed round
4492 with X509_STORE internally.
4494 The functions X509_STORE_add_cert() now checks for an
4495 exact match, rather than just subject name.
4497 The X509_STORE API doesn't directly support the retrieval
4498 of multiple certificates matching a given criteria, however
4499 this can be worked round by performing a lookup first
4500 (which will fill the cache with candidate certificates)
4501 and then examining the cache for matches. This is probably
4502 the best we can do without throwing out X509_LOOKUP
4503 entirely (maybe later...).
4505 The X509_VERIFY_CTX structure has been enhanced considerably.
4507 All certificate lookup operations now go via a get_issuer()
4508 callback. Although this currently uses an X509_STORE it
4509 can be replaced by custom lookups. This is a simple way
4510 to bypass the X509_STORE hackery necessary to make this
4511 work and makes it possible to use more efficient techniques
4512 in future. A very simple version which uses a simple
4513 STACK for its trusted certificate store is also provided
4514 using X509_STORE_CTX_trusted_stack().
4516 The verify_cb() and verify() callbacks now have equivalents
4517 in the X509_STORE_CTX structure.
4519 X509_STORE_CTX also has a 'flags' field which can be used
4520 to customise the verify behaviour.
4523 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4524 excludes S/MIME capabilities.
4527 *) When a certificate request is read in keep a copy of the
4528 original encoding of the signed data and use it when outputing
4529 again. Signatures then use the original encoding rather than
4530 a decoded, encoded version which may cause problems if the
4531 request is improperly encoded.
4534 *) For consistency with other BIO_puts implementations, call
4535 buffer_write(b, ...) directly in buffer_puts instead of calling
4538 In BIO_puts, increment b->num_write as in BIO_write.
4539 [Peter.Sylvester@EdelWeb.fr]
4541 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4542 BN_zero, we may not return a BIGNUM with an array consisting of
4546 *) Avoid calling abort() from within the library when problems are
4547 detected, except if preprocessor symbols have been defined
4548 (such as REF_CHECK, BN_DEBUG etc.).
4551 *) New openssl application 'rsautl'. This utility can be
4552 used for low level RSA operations. DER public key
4553 BIO/fp routines also added.
4556 *) New Configure entry and patches for compiling on QNX 4.
4557 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4559 *) A demo state-machine implementation was sponsored by
4560 Nuron (http://www.nuron.com/) and is now available in
4561 demos/state_machine.
4564 *) New options added to the 'dgst' utility for signature
4565 generation and verification.
4568 *) Unrecognized PKCS#7 content types are now handled via a
4569 catch all ASN1_TYPE structure. This allows unsupported
4570 types to be stored as a "blob" and an application can
4571 encode and decode it manually.
4574 *) Fix various signed/unsigned issues to make a_strex.c
4576 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
4578 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
4579 length if passed a buffer. ASN1_INTEGER_to_BN failed
4580 if passed a NULL BN and its argument was negative.
4581 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
4583 *) Modification to PKCS#7 encoding routines to output definite
4584 length encoding. Since currently the whole structures are in
4585 memory there's not real point in using indefinite length
4586 constructed encoding. However if OpenSSL is compiled with
4587 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
4590 *) Added BIO_vprintf() and BIO_vsnprintf().
4593 *) Added more prefixes to parse for in the the strings written
4594 through a logging bio, to cover all the levels that are available
4595 through syslog. The prefixes are now:
4597 PANIC, EMERG, EMR => LOG_EMERG
4598 ALERT, ALR => LOG_ALERT
4599 CRIT, CRI => LOG_CRIT
4600 ERROR, ERR => LOG_ERR
4601 WARNING, WARN, WAR => LOG_WARNING
4602 NOTICE, NOTE, NOT => LOG_NOTICE
4603 INFO, INF => LOG_INFO
4604 DEBUG, DBG => LOG_DEBUG
4606 and as before, if none of those prefixes are present at the
4607 beginning of the string, LOG_ERR is chosen.
4609 On Win32, the LOG_* levels are mapped according to this:
4611 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
4612 LOG_WARNING => EVENTLOG_WARNING_TYPE
4613 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
4617 *) Made it possible to reconfigure with just the configuration
4618 argument "reconf" or "reconfigure". The command line arguments
4619 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
4620 and are retrieved from there when reconfiguring.
4624 [Assar Westerlund <assar@sics.se>, Richard Levitte]
4626 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
4629 *) The obj_dat.pl script was messing up the sorting of object
4630 names. The reason was that it compared the quoted version
4631 of strings as a result "OCSP" > "OCSP Signing" because
4632 " > SPACE. Changed script to store unquoted versions of
4633 names and add quotes on output. It was also omitting some
4634 names from the lookup table if they were given a default
4635 value (that is if SN is missing it is given the same
4636 value as LN and vice versa), these are now added on the
4637 grounds that if an object has a name we should be able to
4638 look it up. Finally added warning output when duplicate
4639 short or long names are found.
4642 *) Changes needed for Tandem NSK.
4643 [Scott Uroff <scott@xypro.com>]
4645 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
4646 RSA_padding_check_SSLv23(), special padding was never detected
4647 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
4648 version rollback attacks was not effective.
4650 In s23_clnt.c, don't use special rollback-attack detection padding
4651 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
4652 client; similarly, in s23_srvr.c, don't do the rollback check if
4653 SSL 2.0 is the only protocol enabled in the server.
4656 *) Make it possible to get hexdumps of unprintable data with 'openssl
4657 asn1parse'. By implication, the functions ASN1_parse_dump() and
4658 BIO_dump_indent() are added.
4661 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
4662 these print out strings and name structures based on various
4663 flags including RFC2253 support and proper handling of
4664 multibyte characters. Added options to the 'x509' utility
4665 to allow the various flags to be set.
4668 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
4669 Also change the functions X509_cmp_current_time() and
4670 X509_gmtime_adj() work with an ASN1_TIME structure,
4671 this will enable certificates using GeneralizedTime in validity
4672 dates to be checked.
4675 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
4676 negative public key encodings) on by default,
4677 NO_NEG_PUBKEY_BUG can be set to disable it.
4680 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
4681 content octets. An i2c_ASN1_OBJECT is unnecessary because
4682 the encoding can be trivially obtained from the structure.
4685 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
4686 not read locks (CRYPTO_r_[un]lock).
4689 *) A first attempt at creating official support for shared
4690 libraries through configuration. I've kept it so the
4691 default is static libraries only, and the OpenSSL programs
4692 are always statically linked for now, but there are
4693 preparations for dynamic linking in place.
4694 This has been tested on Linux and Tru64.
4697 *) Randomness polling function for Win9x, as described in:
4698 Peter Gutmann, Software Generation of Practically Strong
4702 *) Fix so PRNG is seeded in req if using an already existing
4706 *) New options to smime application. -inform and -outform
4707 allow alternative formats for the S/MIME message including
4708 PEM and DER. The -content option allows the content to be
4709 specified separately. This should allow things like Netscape
4710 form signing output easier to verify.
4713 *) Fix the ASN1 encoding of tags using the 'long form'.
4716 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
4717 STRING types. These convert content octets to and from the
4718 underlying type. The actual tag and length octets are
4719 already assumed to have been read in and checked. These
4720 are needed because all other string types have virtually
4721 identical handling apart from the tag. By having versions
4722 of the ASN1 functions that just operate on content octets
4723 IMPLICIT tagging can be handled properly. It also allows
4724 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
4725 and ASN1_INTEGER are identical apart from the tag.
4728 *) Change the handling of OID objects as follows:
4730 - New object identifiers are inserted in objects.txt, following
4731 the syntax given in objects.README.
4732 - objects.pl is used to process obj_mac.num and create a new
4734 - obj_dat.pl is used to create a new obj_dat.h, using the data in
4737 This is currently kind of a hack, and the perl code in objects.pl
4738 isn't very elegant, but it works as I intended. The simplest way
4739 to check that it worked correctly is to look in obj_dat.h and
4740 check the array nid_objs and make sure the objects haven't moved
4741 around (this is important!). Additions are OK, as well as
4742 consistent name changes.
4745 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
4748 *) Addition of the command line parameter '-rand file' to 'openssl req'.
4749 The given file adds to whatever has already been seeded into the
4750 random pool through the RANDFILE configuration file option or
4751 environment variable, or the default random state file.
4754 *) mkstack.pl now sorts each macro group into lexical order.
4755 Previously the output order depended on the order the files
4756 appeared in the directory, resulting in needless rewriting
4760 *) Patches to make OpenSSL compile under Win32 again. Mostly
4761 work arounds for the VC++ problem that it treats func() as
4762 func(void). Also stripped out the parts of mkdef.pl that
4763 added extra typesafe functions: these no longer exist.
4766 *) Reorganisation of the stack code. The macros are now all
4767 collected in safestack.h . Each macro is defined in terms of
4768 a "stack macro" of the form SKM_<name>(type, a, b). The
4769 DEBUG_SAFESTACK is now handled in terms of function casts,
4770 this has the advantage of retaining type safety without the
4771 use of additional functions. If DEBUG_SAFESTACK is not defined
4772 then the non typesafe macros are used instead. Also modified the
4773 mkstack.pl script to handle the new form. Needs testing to see
4774 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
4775 the default if no major problems. Similar behaviour for ASN1_SET_OF
4776 and PKCS12_STACK_OF.
4779 *) When some versions of IIS use the 'NET' form of private key the
4780 key derivation algorithm is different. Normally MD5(password) is
4781 used as a 128 bit RC4 key. In the modified case
4782 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
4783 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
4784 as the old Netscape_RSA functions except they have an additional
4785 'sgckey' parameter which uses the modified algorithm. Also added
4786 an -sgckey command line option to the rsa utility. Thanks to
4787 Adrian Peck <bertie@ncipher.com> for posting details of the modified
4788 algorithm to openssl-dev.
4791 *) The evp_local.h macros were using 'c.##kname' which resulted in
4792 invalid expansion on some systems (SCO 5.0.5 for example).
4793 Corrected to 'c.kname'.
4794 [Phillip Porch <root@theporch.com>]
4796 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
4797 a STACK of email addresses from a certificate or request, these look
4798 in the subject name and the subject alternative name extensions and
4799 omit any duplicate addresses.
4802 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
4803 This makes DSA verification about 2 % faster.
4806 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
4807 (meaning that now 2^5 values will be precomputed, which is only 4 KB
4808 plus overhead for 1024 bit moduli).
4809 This makes exponentiations about 0.5 % faster for 1024 bit
4810 exponents (as measured by "openssl speed rsa2048").
4813 *) Rename memory handling macros to avoid conflicts with other
4815 Malloc => OPENSSL_malloc
4816 Malloc_locked => OPENSSL_malloc_locked
4817 Realloc => OPENSSL_realloc
4818 Free => OPENSSL_free
4821 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
4822 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
4825 *) CygWin32 support.
4826 [John Jarvie <jjarvie@newsguy.com>]
4828 *) The type-safe stack code has been rejigged. It is now only compiled
4829 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
4830 by default all type-specific stack functions are "#define"d back to
4831 standard stack functions. This results in more streamlined output
4832 but retains the type-safety checking possibilities of the original
4836 *) The STACK code has been cleaned up, and certain type declarations
4837 that didn't make a lot of sense have been brought in line. This has
4838 also involved a cleanup of sorts in safestack.h to more correctly
4839 map type-safe stack functions onto their plain stack counterparts.
4840 This work has also resulted in a variety of "const"ifications of
4841 lots of the code, especially "_cmp" operations which should normally
4842 be prototyped with "const" parameters anyway.
4845 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
4846 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
4847 (The PRNG state consists of two parts, the large pool 'state' and 'md',
4848 where all of 'md' is used each time the PRNG is used, but 'state'
4849 is used only indexed by a cyclic counter. As entropy may not be
4850 well distributed from the beginning, 'md' is important as a
4851 chaining variable. However, the output function chains only half
4852 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
4853 all of 'md', and seeding with STATE_SIZE dummy bytes will result
4854 in all of 'state' being rewritten, with the new values depending
4855 on virtually all of 'md'. This overcomes the 80 bit limitation.)
4858 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
4859 the handshake is continued after ssl_verify_cert_chain();
4860 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
4861 can lead to 'unexplainable' connection aborts later.
4862 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
4864 *) Major EVP API cipher revision.
4865 Add hooks for extra EVP features. This allows various cipher
4866 parameters to be set in the EVP interface. Support added for variable
4867 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
4868 setting of RC2 and RC5 parameters.
4870 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
4873 Remove lots of duplicated code from the EVP library. For example *every*
4874 cipher init() function handles the 'iv' in the same way according to the
4875 cipher mode. They also all do nothing if the 'key' parameter is NULL and
4876 for CFB and OFB modes they zero ctx->num.
4878 New functionality allows removal of S/MIME code RC2 hack.
4880 Most of the routines have the same form and so can be declared in terms
4883 By shifting this to the top level EVP_CipherInit() it can be removed from
4884 all individual ciphers. If the cipher wants to handle IVs or keys
4885 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
4888 Change lots of functions like EVP_EncryptUpdate() to now return a
4889 value: although software versions of the algorithms cannot fail
4890 any installed hardware versions can.
4893 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
4894 this option is set, tolerate broken clients that send the negotiated
4895 protocol version number instead of the requested protocol version
4899 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
4900 i.e. non-zero for export ciphersuites, zero otherwise.
4901 Previous versions had this flag inverted, inconsistent with
4902 rsa_tmp_cb (..._TMP_RSA_CB).
4903 [Bodo Moeller; problem reported by Amit Chopra]
4905 *) Add missing DSA library text string. Work around for some IIS
4906 key files with invalid SEQUENCE encoding.
4909 *) Add a document (doc/standards.txt) that list all kinds of standards
4910 and so on that are implemented in OpenSSL.
4913 *) Enhance c_rehash script. Old version would mishandle certificates
4914 with the same subject name hash and wouldn't handle CRLs at all.
4915 Added -fingerprint option to crl utility, to support new c_rehash
4919 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
4922 *) Fix for SSL server purpose checking. Server checking was
4923 rejecting certificates which had extended key usage present
4924 but no ssl client purpose.
4925 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
4927 *) Make PKCS#12 code work with no password. The PKCS#12 spec
4928 is a little unclear about how a blank password is handled.
4929 Since the password in encoded as a BMPString with terminating
4930 double NULL a zero length password would end up as just the
4931 double NULL. However no password at all is different and is
4932 handled differently in the PKCS#12 key generation code. NS
4933 treats a blank password as zero length. MSIE treats it as no
4934 password on export: but it will try both on import. We now do
4935 the same: PKCS12_parse() tries zero length and no password if
4936 the password is set to "" or NULL (NULL is now a valid password:
4937 it wasn't before) as does the pkcs12 application.
4940 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
4941 perror when PEM_read_bio_X509_REQ fails, the error message must
4942 be obtained from the error queue.
4945 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
4946 it in ERR_remove_state if appropriate, and change ERR_get_state
4947 accordingly to avoid race conditions (this is necessary because
4948 thread_hash is no longer constant once set).
4951 *) Bugfix for linux-elf makefile.one.
4954 *) RSA_get_default_method() will now cause a default
4955 RSA_METHOD to be chosen if one doesn't exist already.
4956 Previously this was only set during a call to RSA_new()
4957 or RSA_new_method(NULL) meaning it was possible for
4958 RSA_get_default_method() to return NULL.
4961 *) Added native name translation to the existing DSO code
4962 that will convert (if the flag to do so is set) filenames
4963 that are sufficiently small and have no path information
4964 into a canonical native form. Eg. "blah" converted to
4965 "libblah.so" or "blah.dll" etc.
4968 *) New function ERR_error_string_n(e, buf, len) which is like
4969 ERR_error_string(e, buf), but writes at most 'len' bytes
4970 including the 0 terminator. For ERR_error_string_n, 'buf'
4972 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
4974 *) CONF library reworked to become more general. A new CONF
4975 configuration file reader "class" is implemented as well as a
4976 new functions (NCONF_*, for "New CONF") to handle it. The now
4977 old CONF_* functions are still there, but are reimplemented to
4978 work in terms of the new functions. Also, a set of functions
4979 to handle the internal storage of the configuration data is
4980 provided to make it easier to write new configuration file
4981 reader "classes" (I can definitely see something reading a
4982 configuration file in XML format, for example), called _CONF_*,
4983 or "the configuration storage API"...
4985 The new configuration file reading functions are:
4987 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
4988 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
4990 NCONF_default, NCONF_WIN32
4992 NCONF_dump_fp, NCONF_dump_bio
4994 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
4995 NCONF_new creates a new CONF object. This works in the same way
4996 as other interfaces in OpenSSL, like the BIO interface.
4997 NCONF_dump_* dump the internal storage of the configuration file,
4998 which is useful for debugging. All other functions take the same
4999 arguments as the old CONF_* functions wth the exception of the
5000 first that must be a `CONF *' instead of a `LHASH *'.
5002 To make it easer to use the new classes with the old CONF_* functions,
5003 the function CONF_set_default_method is provided.
5006 *) Add '-tls1' option to 'openssl ciphers', which was already
5007 mentioned in the documentation but had not been implemented.
5008 (This option is not yet really useful because even the additional
5009 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5012 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5013 OpenSSL-based applications) load shared libraries and bind to
5014 them in a portable way.
5015 [Geoff Thorpe, with contributions from Richard Levitte]
5017 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5019 *) Make sure _lrotl and _lrotr are only used with MSVC.
5021 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5022 (the default implementation of RAND_status).
5024 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5025 to '-clrext' (= clear extensions), as intended and documented.
5026 [Bodo Moeller; inconsistency pointed out by Michael Attili
5029 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5030 was larger than the MD block size.
5031 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5033 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5034 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5035 using the passed key: if the passed key was a private key the result
5036 of X509_print(), for example, would be to print out all the private key
5040 *) des_quad_cksum() byte order bug fix.
5041 [Ulf Möller, using the problem description in krb4-0.9.7, where
5042 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5044 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5046 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5048 *) For easily testing in shell scripts whether some command
5049 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5050 returns with exit code 0 iff no command of the given name is available.
5051 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5052 the output goes to stdout and nothing is printed to stderr.
5053 Additional arguments are always ignored.
5055 Since for each cipher there is a command of the same name,
5056 the 'no-cipher' compilation switches can be tested this way.
5058 ('openssl no-XXX' is not able to detect pseudo-commands such
5059 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5062 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5065 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5066 is set; it will be thrown away anyway because each handshake creates
5068 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5069 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5070 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5071 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5074 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5075 'Q' and 'R' lose their special meanings (quit/renegotiate).
5076 This is part of what -quiet does; unlike -quiet, -ign_eof
5077 does not suppress any output.
5080 *) Add compatibility options to the purpose and trust code. The
5081 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5082 accepts a certificate or CA, this was the previous behaviour,
5083 with all the associated security issues.
5085 X509_TRUST_COMPAT is the old trust behaviour: only and
5086 automatically trust self signed roots in certificate store. A
5087 new trust setting X509_TRUST_DEFAULT is used to specify that
5088 a purpose has no associated trust setting and it should instead
5089 use the value in the default purpose.
5092 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5093 and fix a memory leak.
5096 *) In util/mkerr.pl (which implements 'make errors'), preserve
5097 reason strings from the previous version of the .c file, as
5098 the default to have only downcase letters (and digits) in
5099 automatically generated reasons codes is not always appropriate.
5102 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5103 using strerror. Previously, ERR_reason_error_string() returned
5104 library names as reason strings for SYSerr; but SYSerr is a special
5105 case where small numbers are errno values, not library numbers.
5108 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5109 converts DSA parameters into DH parameters. (When creating parameters,
5110 DSA_generate_parameters is used.)
5113 *) Include 'length' (recommended exponent length) in C code generated
5114 by 'openssl dhparam -C'.
5117 *) The second argument to set_label in perlasm was already being used
5118 so couldn't be used as a "file scope" flag. Moved to third argument
5122 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5123 instead of RAND_bytes for encryption IVs and salts.
5126 *) Include RAND_status() into RAND_METHOD instead of implementing
5127 it only for md_rand.c Otherwise replacing the PRNG by calling
5128 RAND_set_rand_method would be impossible.
5131 *) Don't let DSA_generate_key() enter an infinite loop if the random
5132 number generation fails.
5135 *) New 'rand' application for creating pseudo-random output.
5138 *) Added configuration support for Linux/IA64
5139 [Rolf Haberrecker <rolf@suse.de>]
5141 *) Assembler module support for Mingw32.
5144 *) Shared library support for HPUX (in shlib/).
5145 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5147 *) Shared library support for Solaris gcc.
5148 [Lutz Behnke <behnke@trustcenter.de>]
5150 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5152 *) PKCS7_encrypt() was adding text MIME headers twice because they
5153 were added manually and by SMIME_crlf_copy().
5156 *) In bntest.c don't call BN_rand with zero bits argument.
5157 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5159 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5160 case was implemented. This caused BN_div_recp() to fail occasionally.
5163 *) Add an optional second argument to the set_label() in the perl
5164 assembly language builder. If this argument exists and is set
5165 to 1 it signals that the assembler should use a symbol whose
5166 scope is the entire file, not just the current function. This
5167 is needed with MASM which uses the format label:: for this scope.
5168 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5170 *) Change the ASN1 types so they are typedefs by default. Before
5171 almost all types were #define'd to ASN1_STRING which was causing
5172 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5176 *) Change names of new functions to the new get1/get0 naming
5177 convention: After 'get1', the caller owns a reference count
5178 and has to call ..._free; 'get0' returns a pointer to some
5179 data structure without incrementing reference counters.
5180 (Some of the existing 'get' functions increment a reference
5181 counter, some don't.)
5182 Similarly, 'set1' and 'add1' functions increase reference
5183 counters or duplicate objects.
5186 *) Allow for the possibility of temp RSA key generation failure:
5187 the code used to assume it always worked and crashed on failure.
5190 *) Fix potential buffer overrun problem in BIO_printf().
5191 [Ulf Möller, using public domain code by Patrick Powell; problem
5192 pointed out by David Sacerdote <das33@cornell.edu>]
5194 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5195 RAND_egd() and RAND_status(). In the command line application,
5196 the EGD socket can be specified like a seed file using RANDFILE
5200 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5201 Some CAs (e.g. Verisign) distribute certificates in this form.
5204 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5205 list to exclude them. This means that no special compilation option
5206 is needed to use anonymous DH: it just needs to be included in the
5210 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5211 EVP_MD_type. The old functionality is available in a new macro called
5212 EVP_MD_md(). Change code that uses it and update docs.
5215 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5216 where the 'void *' argument is replaced by a function pointer argument.
5217 Previously 'void *' was abused to point to functions, which works on
5218 many platforms, but is not correct. As these functions are usually
5219 called by macros defined in OpenSSL header files, most source code
5220 should work without changes.
5223 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5224 sections with information on -D... compiler switches used for
5225 compiling the library so that applications can see them. To enable
5226 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5227 must be defined. E.g.,
5228 #define OPENSSL_ALGORITHM_DEFINES
5229 #include <openssl/opensslconf.h>
5230 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5231 [Richard Levitte, Ulf and Bodo Möller]
5233 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5237 *) Change the 'other' type in certificate aux info to a STACK_OF
5238 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5239 the required ASN1 format: arbitrary types determined by an OID.
5242 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5243 argument to 'req'. This is not because the function is newer or
5244 better than others it just uses the work 'NEW' in the certificate
5245 request header lines. Some software needs this.
5248 *) Reorganise password command line arguments: now passwords can be
5249 obtained from various sources. Delete the PEM_cb function and make
5250 it the default behaviour: i.e. if the callback is NULL and the
5251 usrdata argument is not NULL interpret it as a null terminated pass
5252 phrase. If usrdata and the callback are NULL then the pass phrase
5253 is prompted for as usual.
5256 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5257 the support is automatically enabled. The resulting binaries will
5258 autodetect the card and use it if present.
5259 [Ben Laurie and Compaq Inc.]
5261 *) Work around for Netscape hang bug. This sends certificate request
5262 and server done in one record. Since this is perfectly legal in the
5263 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5264 the bugs/SSLv3 entry for more info.
5267 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5270 *) Add -rand argument to smime and pkcs12 applications and read/write
5274 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5277 *) Add command line password options to the remaining applications.
5280 *) Bug fix for BN_div_recp() for numerators with an even number of
5284 *) More tests in bntest.c, and changed test_bn output.
5287 *) ./config recognizes MacOS X now.
5290 *) Bug fix for BN_div() when the first words of num and divsor are
5291 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5294 *) Add support for various broken PKCS#8 formats, and command line
5295 options to produce them.
5298 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5299 get temporary BIGNUMs from a BN_CTX.
5302 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5306 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5307 include a #define from the old name to the new. The original intent
5308 was that statically linked binaries could for example just call
5309 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5310 link with digests. This never worked becayse SSLeay_add_all_digests()
5311 and SSLeay_add_all_ciphers() were in the same source file so calling
5312 one would link with the other. They are now in separate source files.
5315 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5318 *) Use a less unusual form of the Miller-Rabin primality test (it used
5319 a binary algorithm for exponentiation integrated into the Miller-Rabin
5320 loop, our standard modexp algorithms are faster).
5323 *) Support for the EBCDIC character set completed.
5324 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5326 *) Source code cleanups: use const where appropriate, eliminate casts,
5327 use void * instead of char * in lhash.
5330 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5331 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5332 this the server could overwrite ephemeral keys that the client
5336 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5337 using 50 iterations of the Rabin-Miller test.
5339 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5340 iterations of the Rabin-Miller test as required by the appendix
5341 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5342 As BN_is_prime_fasttest includes trial division, DSA parameter
5343 generation becomes much faster.
5345 This implies a change for the callback functions in DSA_is_prime
5346 and DSA_generate_parameters: The callback function is called once
5347 for each positive witness in the Rabin-Miller test, not just
5348 occasionally in the inner loop; and the parameters to the
5349 callback function now provide an iteration count for the outer
5350 loop rather than for the current invocation of the inner loop.
5351 DSA_generate_parameters additionally can call the callback
5352 function with an 'iteration count' of -1, meaning that a
5353 candidate has passed the trial division test (when q is generated
5354 from an application-provided seed, trial division is skipped).
5357 *) New function BN_is_prime_fasttest that optionally does trial
5358 division before starting the Rabin-Miller test and has
5359 an additional BN_CTX * argument (whereas BN_is_prime always
5360 has to allocate at least one BN_CTX).
5361 'callback(1, -1, cb_arg)' is called when a number has passed the
5362 trial division stage.
5365 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5369 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5372 *) New function BN_pseudo_rand().
5375 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5376 bignum version of BN_from_montgomery() with the working code from
5377 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5381 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5382 made it impossible to use the same SSL_SESSION data structure in
5383 SSL2 clients in multiple threads.
5386 *) The return value of RAND_load_file() no longer counts bytes obtained
5387 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5388 to seed the PRNG (previously an explicit byte count was required).
5389 [Ulf Möller, Bodo Möller]
5391 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5392 used (char *) instead of (void *) and had casts all over the place.
5395 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5398 *) Retain source code compatibility for BN_prime_checks macro:
5399 BN_is_prime(..., BN_prime_checks, ...) now uses
5400 BN_prime_checks_for_size to determine the appropriate number of
5401 Rabin-Miller iterations.
5404 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5405 DH_CHECK_P_NOT_SAFE_PRIME.
5406 (Check if this is true? OpenPGP calls them "strong".)
5409 *) Merge the functionality of "dh" and "gendh" programs into a new program
5410 "dhparam". The old programs are retained for now but will handle DH keys
5411 (instead of parameters) in future.
5414 *) Make the ciphers, s_server and s_client programs check the return values
5415 when a new cipher list is set.
5418 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5419 ciphers. Before when the 56bit ciphers were enabled the sorting was
5422 The syntax for the cipher sorting has been extended to support sorting by
5423 cipher-strength (using the strength_bits hard coded in the tables).
5424 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5426 Fix a bug in the cipher-command parser: when supplying a cipher command
5427 string with an "undefined" symbol (neither command nor alphanumeric
5428 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5429 an error is flagged.
5431 Due to the strength-sorting extension, the code of the
5432 ssl_create_cipher_list() function was completely rearranged. I hope that
5433 the readability was also increased :-)
5434 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5436 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5437 for the first serial number and places 2 in the serial number file. This
5438 avoids problems when the root CA is created with serial number zero and
5439 the first user certificate has the same issuer name and serial number
5443 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5444 the new code. Add documentation for this stuff.
5447 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5448 X509_*() to X509at_*() on the grounds that they don't handle X509
5449 structures and behave in an analagous way to the X509v3 functions:
5450 they shouldn't be called directly but wrapper functions should be used
5453 So we also now have some wrapper functions that call the X509at functions
5454 when passed certificate requests. (TO DO: similar things can be done with
5455 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5456 things. Some of these need some d2i or i2d and print functionality
5457 because they handle more complex structures.)
5460 *) Add missing #ifndefs that caused missing symbols when building libssl
5461 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5462 NO_RSA in ssl/s2*.c.
5463 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5465 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5466 has a return value which indicates the quality of the random data
5467 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5468 error queue. New function RAND_pseudo_bytes() generates output that is
5469 guaranteed to be unique but not unpredictable. RAND_add is like
5470 RAND_seed, but takes an extra argument for an entropy estimate
5471 (RAND_seed always assumes full entropy).
5474 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5475 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5476 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5477 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5478 false-positive rate of at most 2^-80 for random input.
5481 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5484 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5485 in the 0.9.5 release), this returns the chain
5486 from an X509_CTX structure with a dup of the stack and all
5487 the X509 reference counts upped: so the stack will exist
5488 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5491 Also make SSL_SESSION_print() print out the verify return
5495 *) Add manpage for the pkcs12 command. Also change the default
5496 behaviour so MAC iteration counts are used unless the new
5497 -nomaciter option is used. This improves file security and
5498 only older versions of MSIE (4.0 for example) need it.
5501 *) Honor the no-xxx Configure options when creating .DEF files.
5504 *) Add PKCS#10 attributes to field table: challengePassword,
5505 unstructuredName and unstructuredAddress. These are taken from
5506 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5507 international characters are used.
5509 More changes to X509_ATTRIBUTE code: allow the setting of types
5510 based on strings. Remove the 'loc' parameter when adding
5511 attributes because these will be a SET OF encoding which is sorted
5515 *) Initial changes to the 'req' utility to allow request generation
5516 automation. This will allow an application to just generate a template
5517 file containing all the field values and have req construct the
5520 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5521 used all over the place including certificate requests and PKCS#7
5522 structures. They are currently handled manually where necessary with
5523 some primitive wrappers for PKCS#7. The new functions behave in a
5524 manner analogous to the X509 extension functions: they allow
5525 attributes to be looked up by NID and added.
5527 Later something similar to the X509V3 code would be desirable to
5528 automatically handle the encoding, decoding and printing of the
5529 more complex types. The string types like challengePassword can
5530 be handled by the string table functions.
5532 Also modified the multi byte string table handling. Now there is
5533 a 'global mask' which masks out certain types. The table itself
5534 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5535 is useful when for example there is only one permissible type
5536 (as in countryName) and using the mask might result in no valid
5540 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5541 SSL_get_peer_finished to allow applications to obtain the latest
5542 Finished messages sent to the peer or expected from the peer,
5543 respectively. (SSL_get_peer_finished is usually the Finished message
5544 actually received from the peer, otherwise the protocol will be aborted.)
5546 As the Finished message are message digests of the complete handshake
5547 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5548 be used for external authentication procedures when the authentication
5549 provided by SSL/TLS is not desired or is not enough.
5552 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5553 the host supports BWX extension and if Compaq C is present on the
5554 $PATH. Just exploiting of the BWX extension results in 20-30%
5555 performance kick for some algorithms, e.g. DES and RC4 to mention
5556 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5560 *) Add support for MS "fast SGC". This is arguably a violation of the
5561 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
5562 weak crypto and after checking the certificate is SGC a second one
5563 with strong crypto. MS SGC stops the first handshake after receiving
5564 the server certificate message and sends a second client hello. Since
5565 a server will typically do all the time consuming operations before
5566 expecting any further messages from the client (server key exchange
5567 is the most expensive) there is little difference between the two.
5569 To get OpenSSL to support MS SGC we have to permit a second client
5570 hello message after we have sent server done. In addition we have to
5571 reset the MAC if we do get this second client hello.
5574 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
5575 if a DER encoded private key is RSA or DSA traditional format. Changed
5576 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
5577 format DER encoded private key. Newer code should use PKCS#8 format which
5578 has the key type encoded in the ASN1 structure. Added DER private key
5579 support to pkcs8 application.
5582 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
5583 ciphersuites has been selected (as required by the SSL 3/TLS 1
5584 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
5585 is set, we interpret this as a request to violate the specification
5586 (the worst that can happen is a handshake failure, and 'correct'
5587 behaviour would result in a handshake failure anyway).
5590 *) In SSL_CTX_add_session, take into account that there might be multiple
5591 SSL_SESSION structures with the same session ID (e.g. when two threads
5592 concurrently obtain them from an external cache).
5593 The internal cache can handle only one SSL_SESSION with a given ID,
5594 so if there's a conflict, we now throw out the old one to achieve
5598 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
5599 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
5600 some routines that use cipher OIDs: some ciphers do not have OIDs
5601 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
5605 *) Simplify the trust setting structure and code. Now we just have
5606 two sequences of OIDs for trusted and rejected settings. These will
5607 typically have values the same as the extended key usage extension
5608 and any application specific purposes.
5610 The trust checking code now has a default behaviour: it will just
5611 check for an object with the same NID as the passed id. Functions can
5612 be provided to override either the default behaviour or the behaviour
5613 for a given id. SSL client, server and email already have functions
5614 in place for compatibility: they check the NID and also return "trusted"
5615 if the certificate is self signed.
5618 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
5619 traditional format into an EVP_PKEY structure.
5622 *) Add a password callback function PEM_cb() which either prompts for
5623 a password if usr_data is NULL or otherwise assumes it is a null
5624 terminated password. Allow passwords to be passed on command line
5625 environment or config files in a few more utilities.
5628 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
5629 keys. Add some short names for PKCS#8 PBE algorithms and allow them
5630 to be specified on the command line for the pkcs8 and pkcs12 utilities.
5631 Update documentation.
5634 *) Support for ASN1 "NULL" type. This could be handled before by using
5635 ASN1_TYPE but there wasn't any function that would try to read a NULL
5636 and produce an error if it couldn't. For compatibility we also have
5637 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
5638 don't allocate anything because they don't need to.
5641 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
5643 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
5645 *) Rebuild of the memory allocation routines used by OpenSSL code and
5646 possibly others as well. The purpose is to make an interface that
5647 provide hooks so anyone can build a separate set of allocation and
5648 deallocation routines to be used by OpenSSL, for example memory
5649 pool implementations, or something else, which was previously hard
5650 since Malloc(), Realloc() and Free() were defined as macros having
5651 the values malloc, realloc and free, respectively (except for Win32
5652 compilations). The same is provided for memory debugging code.
5653 OpenSSL already comes with functionality to find memory leaks, but
5654 this gives people a chance to debug other memory problems.
5656 With these changes, a new set of functions and macros have appeared:
5658 CRYPTO_set_mem_debug_functions() [F]
5659 CRYPTO_get_mem_debug_functions() [F]
5660 CRYPTO_dbg_set_options() [F]
5661 CRYPTO_dbg_get_options() [F]
5662 CRYPTO_malloc_debug_init() [M]
5664 The memory debug functions are NULL by default, unless the library
5665 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
5666 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
5667 gives the standard debugging functions that come with OpenSSL) or
5668 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
5669 provided by the library user) must be used. When the standard
5670 debugging functions are used, CRYPTO_dbg_set_options can be used to
5671 request additional information:
5672 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
5673 the CRYPTO_MDEBUG_xxx macro when compiling the library.
5675 Also, things like CRYPTO_set_mem_functions will always give the
5676 expected result (the new set of functions is used for allocation
5677 and deallocation) at all times, regardless of platform and compiler
5680 To finish it up, some functions that were never use in any other
5681 way than through macros have a new API and new semantic:
5684 CRYPTO_dbg_realloc()
5687 All macros of value have retained their old syntax.
5688 [Richard Levitte and Bodo Moeller]
5690 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
5691 ordering of SMIMECapabilities wasn't in "strength order" and there
5692 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
5696 *) Some ASN1 types with illegal zero length encoding (INTEGER,
5697 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
5698 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
5700 *) Merge in my S/MIME library for OpenSSL. This provides a simple
5701 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
5702 functionality to handle multipart/signed properly) and a utility
5703 called 'smime' to call all this stuff. This is based on code I
5704 originally wrote for Celo who have kindly allowed it to be
5705 included in OpenSSL.
5708 *) Add variants des_set_key_checked and des_set_key_unchecked of
5709 des_set_key (aka des_key_sched). Global variable des_check_key
5710 decides which of these is called by des_set_key; this way
5711 des_check_key behaves as it always did, but applications and
5712 the library itself, which was buggy for des_check_key == 1,
5713 have a cleaner way to pick the version they need.
5716 *) New function PKCS12_newpass() which changes the password of a
5720 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
5721 dynamic mix. In both cases the ids can be used as an index into the
5722 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
5723 functions so they accept a list of the field values and the
5724 application doesn't need to directly manipulate the X509_TRUST
5728 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
5732 *) Modify the way the V3 extension code looks up extensions. This now
5733 works in a similar way to the object code: we have some "standard"
5734 extensions in a static table which is searched with OBJ_bsearch()
5735 and the application can add dynamic ones if needed. The file
5736 crypto/x509v3/ext_dat.h now has the info: this file needs to be
5737 updated whenever a new extension is added to the core code and kept
5738 in ext_nid order. There is a simple program 'tabtest.c' which checks
5739 this. New extensions are not added too often so this file can readily
5740 be maintained manually.
5742 There are two big advantages in doing things this way. The extensions
5743 can be looked up immediately and no longer need to be "added" using
5744 X509V3_add_standard_extensions(): this function now does nothing.
5745 [Side note: I get *lots* of email saying the extension code doesn't
5746 work because people forget to call this function]
5747 Also no dynamic allocation is done unless new extensions are added:
5748 so if we don't add custom extensions there is no need to call
5749 X509V3_EXT_cleanup().
5752 *) Modify enc utility's salting as follows: make salting the default. Add a
5753 magic header, so unsalted files fail gracefully instead of just decrypting
5754 to garbage. This is because not salting is a big security hole, so people
5755 should be discouraged from doing it.
5758 *) Fixes and enhancements to the 'x509' utility. It allowed a message
5759 digest to be passed on the command line but it only used this
5760 parameter when signing a certificate. Modified so all relevant
5761 operations are affected by the digest parameter including the
5762 -fingerprint and -x509toreq options. Also -x509toreq choked if a
5763 DSA key was used because it didn't fix the digest.
5766 *) Initial certificate chain verify code. Currently tests the untrusted
5767 certificates for consistency with the verify purpose (which is set
5768 when the X509_STORE_CTX structure is set up) and checks the pathlength.
5770 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
5771 this is because it will reject chains with invalid extensions whereas
5772 every previous version of OpenSSL and SSLeay made no checks at all.
5774 Trust code: checks the root CA for the relevant trust settings. Trust
5775 settings have an initial value consistent with the verify purpose: e.g.
5776 if the verify purpose is for SSL client use it expects the CA to be
5777 trusted for SSL client use. However the default value can be changed to
5778 permit custom trust settings: one example of this would be to only trust
5779 certificates from a specific "secure" set of CAs.
5781 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
5782 which should be used for version portability: especially since the
5783 verify structure is likely to change more often now.
5785 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
5786 to set them. If not set then assume SSL clients will verify SSL servers
5789 Two new options to the verify program: -untrusted allows a set of
5790 untrusted certificates to be passed in and -purpose which sets the
5791 intended purpose of the certificate. If a purpose is set then the
5792 new chain verify code is used to check extension consistency.
5795 *) Support for the authority information access extension.
5798 *) Modify RSA and DSA PEM read routines to transparently handle
5799 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
5800 public keys in a format compatible with certificate
5801 SubjectPublicKeyInfo structures. Unfortunately there were already
5802 functions called *_PublicKey_* which used various odd formats so
5803 these are retained for compatibility: however the DSA variants were
5804 never in a public release so they have been deleted. Changed dsa/rsa
5805 utilities to handle the new format: note no releases ever handled public
5806 keys so we should be OK.
5808 The primary motivation for this change is to avoid the same fiasco
5809 that dogs private keys: there are several incompatible private key
5810 formats some of which are standard and some OpenSSL specific and
5811 require various evil hacks to allow partial transparent handling and
5812 even then it doesn't work with DER formats. Given the option anything
5813 other than PKCS#8 should be dumped: but the other formats have to
5814 stay in the name of compatibility.
5816 With public keys and the benefit of hindsight one standard format
5817 is used which works with EVP_PKEY, RSA or DSA structures: though
5818 it clearly returns an error if you try to read the wrong kind of key.
5820 Added a -pubkey option to the 'x509' utility to output the public key.
5821 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
5822 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
5823 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
5824 that do the same as the EVP_PKEY_assign_*() except they up the
5825 reference count of the added key (they don't "swallow" the
5829 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
5830 CRLs would fail if the file contained no certificates or no CRLs:
5831 added a new function to read in both types and return the number
5832 read: this means that if none are read it will be an error. The
5833 DER versions of the certificate and CRL reader would always fail
5834 because it isn't possible to mix certificates and CRLs in DER format
5835 without choking one or the other routine. Changed this to just read
5836 a certificate: this is the best we can do. Also modified the code
5837 in apps/verify.c to take notice of return codes: it was previously
5838 attempting to read in certificates from NULL pointers and ignoring
5839 any errors: this is one reason why the cert and CRL reader seemed
5840 to work. It doesn't check return codes from the default certificate
5841 routines: these may well fail if the certificates aren't installed.
5844 *) Code to support otherName option in GeneralName.
5847 *) First update to verify code. Change the verify utility
5848 so it warns if it is passed a self signed certificate:
5849 for consistency with the normal behaviour. X509_verify
5850 has been modified to it will now verify a self signed
5851 certificate if *exactly* the same certificate appears
5852 in the store: it was previously impossible to trust a
5853 single self signed certificate. This means that:
5854 openssl verify ss.pem
5855 now gives a warning about a self signed certificate but
5856 openssl verify -CAfile ss.pem ss.pem
5860 *) For servers, store verify_result in SSL_SESSION data structure
5861 (and add it to external session representation).
5862 This is needed when client certificate verifications fails,
5863 but an application-provided verification callback (set by
5864 SSL_CTX_set_cert_verify_callback) allows accepting the session
5865 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
5866 but returns 1): When the session is reused, we have to set
5867 ssl->verify_result to the appropriate error code to avoid
5869 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
5871 *) Fix a bug in the new PKCS#7 code: it didn't consider the
5872 case in PKCS7_dataInit() where the signed PKCS7 structure
5873 didn't contain any existing data because it was being created.
5874 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
5876 *) Add a salt to the key derivation routines in enc.c. This
5877 forms the first 8 bytes of the encrypted file. Also add a
5878 -S option to allow a salt to be input on the command line.
5881 *) New function X509_cmp(). Oddly enough there wasn't a function
5882 to compare two certificates. We do this by working out the SHA1
5883 hash and comparing that. X509_cmp() will be needed by the trust
5887 *) SSL_get1_session() is like SSL_get_session(), but increments
5888 the reference count in the SSL_SESSION returned.
5889 [Geoff Thorpe <geoff@eu.c2.net>]
5891 *) Fix for 'req': it was adding a null to request attributes.
5892 Also change the X509_LOOKUP and X509_INFO code to handle
5893 certificate auxiliary information.
5896 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
5900 *) Add the possibility to add extra information to the memory leak
5901 detecting output, to form tracebacks, showing from where each
5902 allocation was originated: CRYPTO_push_info("constant string") adds
5903 the string plus current file name and line number to a per-thread
5904 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
5905 is like calling CYRPTO_pop_info() until the stack is empty.
5906 Also updated memory leak detection code to be multi-thread-safe.
5909 *) Add options -text and -noout to pkcs7 utility and delete the
5910 encryption options which never did anything. Update docs.
5913 *) Add options to some of the utilities to allow the pass phrase
5914 to be included on either the command line (not recommended on
5915 OSes like Unix) or read from the environment. Update the
5916 manpages and fix a few bugs.
5919 *) Add a few manpages for some of the openssl commands.
5922 *) Fix the -revoke option in ca. It was freeing up memory twice,
5923 leaking and not finding already revoked certificates.
5926 *) Extensive changes to support certificate auxiliary information.
5927 This involves the use of X509_CERT_AUX structure and X509_AUX
5928 functions. An X509_AUX function such as PEM_read_X509_AUX()
5929 can still read in a certificate file in the usual way but it
5930 will also read in any additional "auxiliary information". By
5931 doing things this way a fair degree of compatibility can be
5932 retained: existing certificates can have this information added
5933 using the new 'x509' options.
5935 Current auxiliary information includes an "alias" and some trust
5936 settings. The trust settings will ultimately be used in enhanced
5937 certificate chain verification routines: currently a certificate
5938 can only be trusted if it is self signed and then it is trusted
5942 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
5943 The problem was that one of the replacement routines had not been working
5944 since SSLeay releases. For now the offending routine has been replaced
5945 with non-optimised assembler. Even so, this now gives around 95%
5946 performance improvement for 1024 bit RSA signs.
5949 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
5950 handling. Most clients have the effective key size in bits equal to
5951 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
5952 A few however don't do this and instead use the size of the decrypted key
5953 to determine the RC2 key length and the AlgorithmIdentifier to determine
5954 the effective key length. In this case the effective key length can still
5955 be 40 bits but the key length can be 168 bits for example. This is fixed
5956 by manually forcing an RC2 key into the EVP_PKEY structure because the
5957 EVP code can't currently handle unusual RC2 key sizes: it always assumes
5958 the key length and effective key length are equal.
5961 *) Add a bunch of functions that should simplify the creation of
5962 X509_NAME structures. Now you should be able to do:
5963 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
5964 and have it automatically work out the correct field type and fill in
5965 the structures. The more adventurous can try:
5966 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
5967 and it will (hopefully) work out the correct multibyte encoding.
5970 *) Change the 'req' utility to use the new field handling and multibyte
5971 copy routines. Before the DN field creation was handled in an ad hoc
5972 way in req, ca, and x509 which was rather broken and didn't support
5973 BMPStrings or UTF8Strings. Since some software doesn't implement
5974 BMPStrings or UTF8Strings yet, they can be enabled using the config file
5975 using the dirstring_type option. See the new comment in the default
5976 openssl.cnf for more info.
5979 *) Make crypto/rand/md_rand.c more robust:
5980 - Assure unique random numbers after fork().
5981 - Make sure that concurrent threads access the global counter and
5982 md serializably so that we never lose entropy in them
5983 or use exactly the same state in multiple threads.
5984 Access to the large state is not always serializable because
5985 the additional locking could be a performance killer, and
5986 md should be large enough anyway.
5989 *) New file apps/app_rand.c with commonly needed functionality
5990 for handling the random seed file.
5992 Use the random seed file in some applications that previously did not:
5994 dsaparam -genkey (which also ignored its '-rand' option),
5997 x509 (when signing).
5998 Except on systems with /dev/urandom, it is crucial to have a random
5999 seed file at least for key creation, DSA signing, and for DH exchanges;
6000 for RSA signatures we could do without one.
6002 gendh and gendsa (unlike genrsa) used to read only the first byte
6003 of each file listed in the '-rand' option. The function as previously
6004 found in genrsa is now in app_rand.c and is used by all programs
6005 that support '-rand'.
6008 *) In RAND_write_file, use mode 0600 for creating files;
6009 don't just chmod when it may be too late.
6012 *) Report an error from X509_STORE_load_locations
6013 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6016 *) New function ASN1_mbstring_copy() this copies a string in either
6017 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6018 into an ASN1_STRING type. A mask of permissible types is passed
6019 and it chooses the "minimal" type to use or an error if not type
6023 *) Add function equivalents to the various macros in asn1.h. The old
6024 macros are retained with an M_ prefix. Code inside the library can
6025 use the M_ macros. External code (including the openssl utility)
6026 should *NOT* in order to be "shared library friendly".
6029 *) Add various functions that can check a certificate's extensions
6030 to see if it usable for various purposes such as SSL client,
6031 server or S/MIME and CAs of these types. This is currently
6032 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6033 verification. Also added a -purpose flag to x509 utility to
6034 print out all the purposes.
6037 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6041 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6042 for, obtain and decode and extension and obtain its critical flag.
6043 This allows all the necessary extension code to be handled in a
6044 single function call.
6047 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6048 platforms. See crypto/rc4/rc4_enc.c for further details.
6051 *) New -noout option to asn1parse. This causes no output to be produced
6052 its main use is when combined with -strparse and -out to extract data
6053 from a file (which may not be in ASN.1 format).
6056 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6057 when producing the local key id.
6058 [Richard Levitte <levitte@stacken.kth.se>]
6060 *) New option -dhparam in s_server. This allows a DH parameter file to be
6061 stated explicitly. If it is not stated then it tries the first server
6062 certificate file. The previous behaviour hard coded the filename
6066 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6067 a public key to be input or output. For example:
6068 openssl rsa -in key.pem -pubout -out pubkey.pem
6069 Also added necessary DSA public key functions to handle this.
6072 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6073 in the message. This was handled by allowing
6074 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6075 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6077 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6078 to the end of the strings whereas this didn't. This would cause problems
6079 if strings read with d2i_ASN1_bytes() were later modified.
6080 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6082 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6083 data and it contains EOF it will end up returning an error. This is
6084 caused by input 46 bytes long. The cause is due to the way base64
6085 BIOs find the start of base64 encoded data. They do this by trying a
6086 trial decode on each line until they find one that works. When they
6087 do a flag is set and it starts again knowing it can pass all the
6088 data directly through the decoder. Unfortunately it doesn't reset
6089 the context it uses. This means that if EOF is reached an attempt
6090 is made to pass two EOFs through the context and this causes the
6091 resulting error. This can also cause other problems as well. As is
6092 usual with these problems it takes *ages* to find and the fix is
6093 trivial: move one line.
6094 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6096 *) Ugly workaround to get s_client and s_server working under Windows. The
6097 old code wouldn't work because it needed to select() on sockets and the
6098 tty (for keypresses and to see if data could be written). Win32 only
6099 supports select() on sockets so we select() with a 1s timeout on the
6100 sockets and then see if any characters are waiting to be read, if none
6101 are present then we retry, we also assume we can always write data to
6102 the tty. This isn't nice because the code then blocks until we've
6103 received a complete line of data and it is effectively polling the
6104 keyboard at 1s intervals: however it's quite a bit better than not
6105 working at all :-) A dedicated Windows application might handle this
6106 with an event loop for example.
6109 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6110 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6111 will be called when RSA_sign() and RSA_verify() are used. This is useful
6112 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6113 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6114 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6115 This necessitated the support of an extra signature type NID_md5_sha1
6116 for SSL signatures and modifications to the SSL library to use it instead
6117 of calling RSA_public_decrypt() and RSA_private_encrypt().
6120 *) Add new -verify -CAfile and -CApath options to the crl program, these
6121 will lookup a CRL issuers certificate and verify the signature in a
6122 similar way to the verify program. Tidy up the crl program so it
6123 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6124 less strict. It will now permit CRL extensions even if it is not
6125 a V2 CRL: this will allow it to tolerate some broken CRLs.
6128 *) Initialize all non-automatic variables each time one of the openssl
6129 sub-programs is started (this is necessary as they may be started
6130 multiple times from the "OpenSSL>" prompt).
6131 [Lennart Bang, Bodo Moeller]
6133 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6134 removing all other RSA functionality (this is what NO_RSA does). This
6135 is so (for example) those in the US can disable those operations covered
6136 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6140 *) Non-copying interface to BIO pairs.
6141 (still largely untested)
6144 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6145 ASCII string. This was handled independently in various places before.
6148 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6149 UTF8 strings a character at a time.
6152 *) Use client_version from client hello to select the protocol
6153 (s23_srvr.c) and for RSA client key exchange verification
6154 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6157 *) Add various utility functions to handle SPKACs, these were previously
6158 handled by poking round in the structure internals. Added new function
6159 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6160 print, verify and generate SPKACs. Based on an original idea from
6161 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6164 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6167 *) Allow the config file extension section to be overwritten on the
6168 command line. Based on an original idea from Massimiliano Pala
6169 <madwolf@comune.modena.it>. The new option is called -extensions
6170 and can be applied to ca, req and x509. Also -reqexts to override
6171 the request extensions in req and -crlexts to override the crl extensions
6175 *) Add new feature to the SPKAC handling in ca. Now you can include
6176 the same field multiple times by preceding it by "XXXX." for example:
6179 this is the same syntax as used in the req config file.
6182 *) Allow certificate extensions to be added to certificate requests. These
6183 are specified in a 'req_extensions' option of the req section of the
6184 config file. They can be printed out with the -text option to req but
6185 are otherwise ignored at present.
6188 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6189 data read consists of only the final block it would not decrypted because
6190 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6191 A misplaced 'break' also meant the decrypted final block might not be
6192 copied until the next read.
6195 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6196 a few extra parameters to the DH structure: these will be useful if
6197 for example we want the value of 'q' or implement X9.42 DH.
6200 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6201 provides hooks that allow the default DSA functions or functions on a
6202 "per key" basis to be replaced. This allows hardware acceleration and
6203 hardware key storage to be handled without major modification to the
6204 library. Also added low level modexp hooks and CRYPTO_EX structure and
6205 associated functions.
6208 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6209 as "read only": it can't be written to and the buffer it points to will
6210 not be freed. Reading from a read only BIO is much more efficient than
6211 a normal memory BIO. This was added because there are several times when
6212 an area of memory needs to be read from a BIO. The previous method was
6213 to create a memory BIO and write the data to it, this results in two
6214 copies of the data and an O(n^2) reading algorithm. There is a new
6215 function BIO_new_mem_buf() which creates a read only memory BIO from
6216 an area of memory. Also modified the PKCS#7 routines to use read only
6220 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6221 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6222 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6223 but a retry condition occured while trying to read the rest.
6226 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6227 NID_pkcs7_encrypted by default: this was wrong since this should almost
6228 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6229 the encrypted data type: this is a more sensible place to put it and it
6230 allows the PKCS#12 code to be tidied up that duplicated this
6234 *) Changed obj_dat.pl script so it takes its input and output files on
6235 the command line. This should avoid shell escape redirection problems
6239 *) Initial support for certificate extension requests, these are included
6240 in things like Xenroll certificate requests. Included functions to allow
6241 extensions to be obtained and added.
6244 *) -crlf option to s_client and s_server for sending newlines as
6245 CRLF (as required by many protocols).
6248 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6250 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6251 [Ralf S. Engelschall]
6253 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6254 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6256 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6260 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6261 DH parameters/keys (q is lost during that conversion, but the resulting
6262 DH parameters contain its length).
6264 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6265 much faster than DH_generate_parameters (which creates parameters
6266 where p = 2*q + 1), and also the smaller q makes DH computations
6267 much more efficient (160-bit exponentiation instead of 1024-bit
6268 exponentiation); so this provides a convenient way to support DHE
6269 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6270 utter importance to use
6271 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6273 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6274 when such DH parameters are used, because otherwise small subgroup
6275 attacks may become possible!
6278 *) Avoid memory leak in i2d_DHparams.
6281 *) Allow the -k option to be used more than once in the enc program:
6282 this allows the same encrypted message to be read by multiple recipients.
6285 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6286 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6287 it will always use the numerical form of the OID, even if it has a short
6291 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6292 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6293 otherwise bn_mod_exp was called. In the case of hardware keys for example
6294 no private key components need be present and it might store extra data
6295 in the RSA structure, which cannot be accessed from bn_mod_exp.
6296 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6297 private key operations.
6300 *) Added support for SPARC Linux.
6303 *) pem_password_cb function type incompatibly changed from
6304 typedef int pem_password_cb(char *buf, int size, int rwflag);
6306 ....(char *buf, int size, int rwflag, void *userdata);
6307 so that applications can pass data to their callbacks:
6308 The PEM[_ASN1]_{read,write}... functions and macros now take an
6309 additional void * argument, which is just handed through whenever
6310 the password callback is called.
6311 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6313 New function SSL_CTX_set_default_passwd_cb_userdata.
6315 Compatibility note: As many C implementations push function arguments
6316 onto the stack in reverse order, the new library version is likely to
6317 interoperate with programs that have been compiled with the old
6318 pem_password_cb definition (PEM_whatever takes some data that
6319 happens to be on the stack as its last argument, and the callback
6320 just ignores this garbage); but there is no guarantee whatsoever that
6323 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6324 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6325 problems not only on Windows, but also on some Unix platforms.
6326 To avoid problematic command lines, these definitions are now in an
6327 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6328 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6331 *) MIPS III/IV assembler module is reimplemented.
6334 *) More DES library cleanups: remove references to srand/rand and
6335 delete an unused file.
6338 *) Add support for the the free Netwide assembler (NASM) under Win32,
6339 since not many people have MASM (ml) and it can be hard to obtain.
6340 This is currently experimental but it seems to work OK and pass all
6341 the tests. Check out INSTALL.W32 for info.
6344 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6345 without temporary keys kept an extra copy of the server key,
6346 and connections with temporary keys did not free everything in case
6350 *) New function RSA_check_key and new openssl rsa option -check
6351 for verifying the consistency of RSA keys.
6352 [Ulf Moeller, Bodo Moeller]
6354 *) Various changes to make Win32 compile work:
6355 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6356 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6357 comparison" warnings.
6358 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6361 *) Add a debugging option to PKCS#5 v2 key generation function: when
6362 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6363 derived keys are printed to stderr.
6366 *) Copy the flags in ASN1_STRING_dup().
6367 [Roman E. Pavlov <pre@mo.msk.ru>]
6369 *) The x509 application mishandled signing requests containing DSA
6370 keys when the signing key was also DSA and the parameters didn't match.
6372 It was supposed to omit the parameters when they matched the signing key:
6373 the verifying software was then supposed to automatically use the CA's
6374 parameters if they were absent from the end user certificate.
6376 Omitting parameters is no longer recommended. The test was also
6377 the wrong way round! This was probably due to unusual behaviour in
6378 EVP_cmp_parameters() which returns 1 if the parameters match.
6379 This meant that parameters were omitted when they *didn't* match and
6380 the certificate was useless. Certificates signed with 'ca' didn't have
6382 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6384 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6385 The interface is as follows:
6386 Applications can use
6387 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6388 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6389 "off" is now the default.
6390 The library internally uses
6391 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6392 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6393 to disable memory-checking temporarily.
6395 Some inconsistent states that previously were possible (and were
6396 even the default) are now avoided.
6398 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6399 with each memory chunk allocated; this is occasionally more helpful
6400 than just having a counter.
6402 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6404 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6408 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6409 which largely parallels "options", but is for changing API behaviour,
6410 whereas "options" are about protocol behaviour.
6411 Initial "mode" flags are:
6413 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6414 a single record has been written.
6415 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6416 retries use the same buffer location.
6417 (But all of the contents must be
6421 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6424 *) Fix problems with no-hmac etc.
6425 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6427 *) New functions RSA_get_default_method(), RSA_set_method() and
6428 RSA_get_method(). These allows replacement of RSA_METHODs without having
6429 to mess around with the internals of an RSA structure.
6432 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6433 Also really enable memory leak checks in openssl.c and in some
6435 [Chad C. Mulligan, Bodo Moeller]
6437 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6438 up the length of negative integers. This has now been simplified to just
6439 store the length when it is first determined and use it later, rather
6440 than trying to keep track of where data is copied and updating it to
6442 [Steve Henson, reported by Brien Wheeler
6443 <bwheeler@authentica-security.com>]
6445 *) Add a new function PKCS7_signatureVerify. This allows the verification
6446 of a PKCS#7 signature but with the signing certificate passed to the
6447 function itself. This contrasts with PKCS7_dataVerify which assumes the
6448 certificate is present in the PKCS#7 structure. This isn't always the
6449 case: certificates can be omitted from a PKCS#7 structure and be
6450 distributed by "out of band" means (such as a certificate database).
6453 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6454 function prototypes in pem.h, also change util/mkdef.pl to add the
6455 necessary function names.
6458 *) mk1mf.pl (used by Windows builds) did not properly read the
6459 options set by Configure in the top level Makefile, and Configure
6460 was not even able to write more than one option correctly.
6461 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6464 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6465 file to be loaded from a BIO or FILE pointer. The BIO version will
6466 for example allow memory BIOs to contain config info.
6469 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6470 Whoever hopes to achieve shared-library compatibility across versions
6471 must use this, not the compile-time macro.
6472 (Exercise 0.9.4: Which is the minimum library version required by
6474 Note: All this applies only to multi-threaded programs, others don't
6478 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6479 through a BIO pair triggered the default case, i.e.
6480 SSLerr(...,SSL_R_UNKNOWN_STATE).
6483 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6484 can use the SSL library even if none of the specific BIOs is
6488 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6489 for the encoded length.
6490 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6492 *) Add initial documentation of the X509V3 functions.
6495 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6496 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6497 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6498 secure PKCS#8 private key format with a high iteration count.
6501 *) Fix determination of Perl interpreter: A perl or perl5
6502 _directory_ in $PATH was also accepted as the interpreter.
6503 [Ralf S. Engelschall]
6505 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6506 wrong with it but it was very old and did things like calling
6507 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6511 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6512 to use the new extension code.
6515 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6516 with macros. This should make it easier to change their form, add extra
6517 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6521 *) Add to configuration table a new entry that can specify an alternative
6522 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6523 according to Mark Crispin <MRC@Panda.COM>.
6527 *) DES CBC did not update the IV. Weird.
6530 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6531 Changing the behaviour of the former might break existing programs --
6532 where IV updating is needed, des_ncbc_encrypt can be used.
6535 *) When bntest is run from "make test" it drives bc to check its
6536 calculations, as well as internally checking them. If an internal check
6537 fails, it needs to cause bc to give a non-zero result or make test carries
6538 on without noticing the failure. Fixed.
6541 *) DES library cleanups.
6544 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6545 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6546 ciphers. NOTE: although the key derivation function has been verified
6547 against some published test vectors it has not been extensively tested
6548 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6552 *) Instead of "mkdir -p", which is not fully portable, use new
6553 Perl script "util/mkdir-p.pl".
6556 *) Rewrite the way password based encryption (PBE) is handled. It used to
6557 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6558 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6559 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6560 the 'parameter' field of the AlgorithmIdentifier is passed to the
6561 underlying key generation function so it must do its own ASN1 parsing.
6562 This has also changed the EVP_PBE_CipherInit() function which now has a
6563 'parameter' argument instead of literal salt and iteration count values
6564 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
6567 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
6568 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
6569 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
6570 KEY" because this clashed with PKCS#8 unencrypted string. Since this
6571 value was just used as a "magic string" and not used directly its
6572 value doesn't matter.
6575 *) Introduce some semblance of const correctness to BN. Shame C doesn't
6579 *) "linux-sparc64" configuration (ultrapenguin).
6580 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
6581 "linux-sparc" configuration.
6582 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
6584 *) config now generates no-xxx options for missing ciphers.
6587 *) Support the EBCDIC character set (work in progress).
6588 File ebcdic.c not yet included because it has a different license.
6589 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6591 *) Support BS2000/OSD-POSIX.
6592 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6594 *) Make callbacks for key generation use void * instead of char *.
6597 *) Make S/MIME samples compile (not yet tested).
6600 *) Additional typesafe stacks.
6603 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
6607 Changes between 0.9.3 and 0.9.3a [29 May 1999]
6609 *) New configuration variant "sco5-gcc".
6611 *) Updated some demos.
6612 [Sean O Riordain, Wade Scholine]
6614 *) Add missing BIO_free at exit of pkcs12 application.
6617 *) Fix memory leak in conf.c.
6620 *) Updates for Win32 to assembler version of MD5.
6623 *) Set #! path to perl in apps/der_chop to where we found it
6624 instead of using a fixed path.
6627 *) SHA library changes for irix64-mips4-cc.
6630 *) Improvements for VMS support.
6634 Changes between 0.9.2b and 0.9.3 [24 May 1999]
6636 *) Bignum library bug fix. IRIX 6 passes "make test" now!
6637 This also avoids the problems with SC4.2 and unpatched SC5.
6638 [Andy Polyakov <appro@fy.chalmers.se>]
6640 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
6641 These are required because of the typesafe stack would otherwise break
6642 existing code. If old code used a structure member which used to be STACK
6643 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
6644 sk_num or sk_value it would produce an error because the num, data members
6645 are not present in STACK_OF. Now it just produces a warning. sk_set
6646 replaces the old method of assigning a value to sk_value
6647 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
6648 that does this will no longer work (and should use sk_set instead) but
6649 this could be regarded as a "questionable" behaviour anyway.
6652 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
6653 correctly handle encrypted S/MIME data.
6656 *) Change type of various DES function arguments from des_cblock
6657 (which means, in function argument declarations, pointer to char)
6658 to des_cblock * (meaning pointer to array with 8 char elements),
6659 which allows the compiler to do more typechecking; it was like
6660 that back in SSLeay, but with lots of ugly casts.
6662 Introduce new type const_des_cblock.
6665 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
6666 problems: find RecipientInfo structure that matches recipient certificate
6667 and initialise the ASN1 structures properly based on passed cipher.
6670 *) Belatedly make the BN tests actually check the results.
6673 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
6674 to and from BNs: it was completely broken. New compilation option
6675 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
6676 key elements as negative integers.
6679 *) Reorganize and speed up MD5.
6680 [Andy Polyakov <appro@fy.chalmers.se>]
6683 [Richard Levitte <richard@levitte.org>]
6685 *) New option -out to asn1parse to allow the parsed structure to be
6686 output to a file. This is most useful when combined with the -strparse
6687 option to examine the output of things like OCTET STRINGS.
6690 *) Make SSL library a little more fool-proof by not requiring any longer
6691 that SSL_set_{accept,connect}_state be called before
6692 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
6693 in many applications because usually everything *appeared* to work as
6694 intended anyway -- now it really works as intended).
6697 *) Move openssl.cnf out of lib/.
6700 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
6701 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
6702 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
6703 [Ralf S. Engelschall]
6705 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
6706 handle PKCS#7 enveloped data properly.
6707 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
6709 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
6710 copying pointers. The cert_st handling is changed by this in
6711 various ways (and thus what used to be known as ctx->default_cert
6712 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
6713 any longer when s->cert does not give us what we need).
6714 ssl_cert_instantiate becomes obsolete by this change.
6715 As soon as we've got the new code right (possibly it already is?),
6716 we have solved a couple of bugs of the earlier code where s->cert
6717 was used as if it could not have been shared with other SSL structures.
6719 Note that using the SSL API in certain dirty ways now will result
6720 in different behaviour than observed with earlier library versions:
6721 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
6722 does not influence s as it used to.
6724 In order to clean up things more thoroughly, inside SSL_SESSION
6725 we don't use CERT any longer, but a new structure SESS_CERT
6726 that holds per-session data (if available); currently, this is
6727 the peer's certificate chain and, for clients, the server's certificate
6728 and temporary key. CERT holds only those values that can have
6729 meaningful defaults in an SSL_CTX.
6732 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
6733 from the internal representation. Various PKCS#7 fixes: remove some
6734 evil casts and set the enc_dig_alg field properly based on the signing
6738 *) Allow PKCS#12 password to be set from the command line or the
6739 environment. Let 'ca' get its config file name from the environment
6740 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
6744 *) Allow certificate policies extension to use an IA5STRING for the
6745 organization field. This is contrary to the PKIX definition but
6746 VeriSign uses it and IE5 only recognises this form. Document 'x509'
6750 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
6751 without disallowing inline assembler and the like for non-pedantic builds.
6754 *) Support Borland C++ builder.
6755 [Janez Jere <jj@void.si>, modified by Ulf Möller]
6760 *) SHA-1 cleanups and performance enhancements.
6761 [Andy Polyakov <appro@fy.chalmers.se>]
6763 *) Sparc v8plus assembler for the bignum library.
6764 [Andy Polyakov <appro@fy.chalmers.se>]
6766 *) Accept any -xxx and +xxx compiler options in Configure.
6769 *) Update HPUX configuration.
6772 *) Add missing sk_<type>_unshift() function to safestack.h
6773 [Ralf S. Engelschall]
6775 *) New function SSL_CTX_use_certificate_chain_file that sets the
6776 "extra_cert"s in addition to the certificate. (This makes sense
6777 only for "PEM" format files, as chains as a whole are not
6781 *) Support verify_depth from the SSL API.
6782 x509_vfy.c had what can be considered an off-by-one-error:
6783 Its depth (which was not part of the external interface)
6784 was actually counting the number of certificates in a chain;
6785 now it really counts the depth.
6788 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
6789 instead of X509err, which often resulted in confusing error
6790 messages since the error codes are not globally unique
6791 (e.g. an alleged error in ssl3_accept when a certificate
6792 didn't match the private key).
6794 *) New function SSL_CTX_set_session_id_context that allows to set a default
6795 value (so that you don't need SSL_set_session_id_context for each
6796 connection using the SSL_CTX).
6799 *) OAEP decoding bug fix.
6802 *) Support INSTALL_PREFIX for package builders, as proposed by
6806 *) New Configure options "threads" and "no-threads". For systems
6807 where the proper compiler options are known (currently Solaris
6808 and Linux), "threads" is the default.
6811 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
6814 *) Install various scripts to $(OPENSSLDIR)/misc, not to
6815 $(INSTALLTOP)/bin -- they shouldn't clutter directories
6816 such as /usr/local/bin.
6819 *) "make linux-shared" to build shared libraries.
6820 [Niels Poppe <niels@netbox.org>]
6822 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
6825 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
6826 extension adding in x509 utility.
6829 *) Remove NOPROTO sections and error code comments.
6832 *) Partial rewrite of the DEF file generator to now parse the ANSI
6836 *) New Configure options --prefix=DIR and --openssldir=DIR.
6839 *) Complete rewrite of the error code script(s). It is all now handled
6840 by one script at the top level which handles error code gathering,
6841 header rewriting and C source file generation. It should be much better
6842 than the old method: it now uses a modified version of Ulf's parser to
6843 read the ANSI prototypes in all header files (thus the old K&R definitions
6844 aren't needed for error creation any more) and do a better job of
6845 translating function codes into names. The old 'ASN1 error code imbedded
6846 in a comment' is no longer necessary and it doesn't use .err files which
6847 have now been deleted. Also the error code call doesn't have to appear all
6848 on one line (which resulted in some large lines...).
6851 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
6854 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
6855 0 (which usually indicates a closed connection), but continue reading.
6858 *) Fix some race conditions.
6861 *) Add support for CRL distribution points extension. Add Certificate
6862 Policies and CRL distribution points documentation.
6865 *) Move the autogenerated header file parts to crypto/opensslconf.h.
6868 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
6869 8 of keying material. Merlin has also confirmed interop with this fix
6870 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
6871 [Merlin Hughes <merlin@baltimore.ie>]
6873 *) Fix lots of warnings.
6874 [Richard Levitte <levitte@stacken.kth.se>]
6876 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
6877 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
6878 [Richard Levitte <levitte@stacken.kth.se>]
6880 *) Fix problems with sizeof(long) == 8.
6881 [Andy Polyakov <appro@fy.chalmers.se>]
6883 *) Change functions to ANSI C.
6886 *) Fix typos in error codes.
6887 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
6889 *) Remove defunct assembler files from Configure.
6892 *) SPARC v8 assembler BIGNUM implementation.
6893 [Andy Polyakov <appro@fy.chalmers.se>]
6895 *) Support for Certificate Policies extension: both print and set.
6896 Various additions to support the r2i method this uses.
6899 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
6900 return a const string when you are expecting an allocated buffer.
6903 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
6904 types DirectoryString and DisplayText.
6907 *) Add code to allow r2i extensions to access the configuration database,
6908 add an LHASH database driver and add several ctx helper functions.
6911 *) Fix an evil bug in bn_expand2() which caused various BN functions to
6912 fail when they extended the size of a BIGNUM.
6915 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
6916 support typesafe stack.
6919 *) Fix typo in SSL_[gs]et_options().
6920 [Nils Frostberg <nils@medcom.se>]
6922 *) Delete various functions and files that belonged to the (now obsolete)
6923 old X509V3 handling code.
6926 *) New Configure option "rsaref".
6929 *) Don't auto-generate pem.h.
6932 *) Introduce type-safe ASN.1 SETs.
6935 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
6936 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
6938 *) Introduce type-safe STACKs. This will almost certainly break lots of code
6939 that links with OpenSSL (well at least cause lots of warnings), but fear
6940 not: the conversion is trivial, and it eliminates loads of evil casts. A
6941 few STACKed things have been converted already. Feel free to convert more.
6942 In the fullness of time, I'll do away with the STACK type altogether.
6945 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
6946 specified in <certfile> by updating the entry in the index.txt file.
6947 This way one no longer has to edit the index.txt file manually for
6948 revoking a certificate. The -revoke option does the gory details now.
6949 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
6951 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
6952 `-text' option at all and this way the `-noout -text' combination was
6953 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
6954 [Ralf S. Engelschall]
6956 *) Make sure a corresponding plain text error message exists for the
6957 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
6958 verify callback function determined that a certificate was revoked.
6959 [Ralf S. Engelschall]
6961 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
6962 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
6963 all available cipers including rc5, which was forgotten until now.
6964 In order to let the testing shell script know which algorithms
6965 are available, a new (up to now undocumented) command
6966 "openssl list-cipher-commands" is used.
6969 *) Bugfix: s_client occasionally would sleep in select() when
6970 it should have checked SSL_pending() first.
6973 *) New functions DSA_do_sign and DSA_do_verify to provide access to
6974 the raw DSA values prior to ASN.1 encoding.
6977 *) Tweaks to Configure
6978 [Niels Poppe <niels@netbox.org>]
6980 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
6984 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
6987 *) New config option to avoid instructions that are illegal on the 80386.
6988 The default code is faster, but requires at least a 486.
6991 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
6992 SSL2_SERVER_VERSION (not used at all) macros, which are now the
6993 same as SSL2_VERSION anyway.
6996 *) New "-showcerts" option for s_client.
6999 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7000 application. Various cleanups and fixes.
7003 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7004 modify error routines to work internally. Add error codes and PBE init
7005 to library startup routines.
7008 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7009 packing functions to asn1 and evp. Changed function names and error
7010 codes along the way.
7013 *) PKCS12 integration: and so it begins... First of several patches to
7014 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7015 objects to objects.h
7018 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7019 and display support for Thawte strong extranet extension.
7022 *) Add LinuxPPC support.
7023 [Jeff Dubrule <igor@pobox.org>]
7025 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7026 bn_div_words in alpha.s.
7027 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7029 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7030 OAEP isn't supported when OpenSSL is built with RSAref.
7031 [Ulf Moeller <ulf@fitug.de>]
7033 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7034 so they no longer are missing under -DNOPROTO.
7035 [Soren S. Jorvang <soren@t.dk>]
7038 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7040 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7041 doesn't work when the session is reused. Coming soon!
7044 *) Fix a security hole, that allows sessions to be reused in the wrong
7045 context thus bypassing client cert protection! All software that uses
7046 client certs and session caches in multiple contexts NEEDS PATCHING to
7047 allow session reuse! A fuller solution is in the works.
7048 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7050 *) Some more source tree cleanups (removed obsolete files
7051 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7052 permission on "config" script to be executable) and a fix for the INSTALL
7054 [Ulf Moeller <ulf@fitug.de>]
7056 *) Remove some legacy and erroneous uses of malloc, free instead of
7058 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7060 *) Make rsa_oaep_test return non-zero on error.
7061 [Ulf Moeller <ulf@fitug.de>]
7063 *) Add support for native Solaris shared libraries. Configure
7064 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7065 if someone would make that last step automatic.
7066 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7068 *) ctx_size was not built with the right compiler during "make links". Fixed.
7071 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7072 except NULL ciphers". This means the default cipher list will no longer
7073 enable NULL ciphers. They need to be specifically enabled e.g. with
7074 the string "DEFAULT:eNULL".
7077 *) Fix to RSA private encryption routines: if p < q then it would
7078 occasionally produce an invalid result. This will only happen with
7079 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7082 *) Be less restrictive and allow also `perl util/perlpath.pl
7083 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7084 because this way one can also use an interpreter named `perl5' (which is
7085 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7086 installed as `perl').
7087 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7089 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7090 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7092 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7093 advapi32.lib to Win32 build and change the pem test comparision
7094 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7095 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7096 and crypto/des/ede_cbcm_enc.c.
7099 *) DES quad checksum was broken on big-endian architectures. Fixed.
7102 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7103 Win32 test batch file so it (might) work again. The Win32 test batch file
7104 is horrible: I feel ill....
7107 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7108 in e_os.h. Audit of header files to check ANSI and non ANSI
7109 sections: 10 functions were absent from non ANSI section and not exported
7110 from Windows DLLs. Fixed up libeay.num for new functions.
7113 *) Make `openssl version' output lines consistent.
7114 [Ralf S. Engelschall]
7116 *) Fix Win32 symbol export lists for BIO functions: Added
7117 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7118 to ms/libeay{16,32}.def.
7119 [Ralf S. Engelschall]
7121 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7122 fine under Unix and passes some trivial tests I've now added. But the
7123 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7124 added to make sure no one expects that this stuff really works in the
7125 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7126 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7128 [Ralf S. Engelschall]
7130 *) Fix the generation of two part addresses in perl.
7131 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7133 *) Add config entry for Linux on MIPS.
7134 [John Tobey <jtobey@channel1.com>]
7136 *) Make links whenever Configure is run, unless we are on Windoze.
7139 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7140 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7144 *) Add a useful kludge to allow package maintainers to specify compiler and
7145 other platforms details on the command line without having to patch the
7146 Configure script everytime: One now can use ``perl Configure
7147 <id>:<details>'', i.e. platform ids are allowed to have details appended
7148 to them (seperated by colons). This is treated as there would be a static
7149 pre-configured entry in Configure's %table under key <id> with value
7150 <details> and ``perl Configure <id>'' is called. So, when you want to
7151 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7152 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7153 now, which overrides the FreeBSD-elf entry on-the-fly.
7154 [Ralf S. Engelschall]
7156 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7159 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7160 on the `perl Configure ...' command line. This way one can compile
7161 OpenSSL libraries with Position Independent Code (PIC) which is needed
7162 for linking it into DSOs.
7163 [Ralf S. Engelschall]
7165 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7169 *) Cleaned up the LICENSE document: The official contact for any license
7170 questions now is the OpenSSL core team under openssl-core@openssl.org.
7171 And add a paragraph about the dual-license situation to make sure people
7172 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7173 to the OpenSSL toolkit.
7174 [Ralf S. Engelschall]
7176 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7177 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7178 Additonally cleaned up the `make links' target: Remove unnecessary
7179 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7180 to speed processing and no longer clutter the display with confusing
7181 stuff. Instead only the actually done links are displayed.
7182 [Ralf S. Engelschall]
7184 *) Permit null encryption ciphersuites, used for authentication only. It used
7185 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7186 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7190 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7191 signed attributes when verifying signatures (this would break them),
7192 the detached data encoding was wrong and public keys obtained using
7193 X509_get_pubkey() weren't freed.
7196 *) Add text documentation for the BUFFER functions. Also added a work around
7197 to a Win95 console bug. This was triggered by the password read stuff: the
7198 last character typed gets carried over to the next fread(). If you were
7199 generating a new cert request using 'req' for example then the last
7200 character of the passphrase would be CR which would then enter the first
7204 *) Added the new `Includes OpenSSL Cryptography Software' button as
7205 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7206 button and can be used by applications based on OpenSSL to show the
7207 relationship to the OpenSSL project.
7208 [Ralf S. Engelschall]
7210 *) Remove confusing variables in function signatures in files
7211 ssl/ssl_lib.c and ssl/ssl.h.
7212 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7214 *) Don't install bss_file.c under PREFIX/include/
7215 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7217 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7218 functions that return function pointers and has support for NT specific
7219 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7220 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7221 unsigned to signed types: this was killing the Win32 compile.
7224 *) Add new certificate file to stack functions,
7225 SSL_add_dir_cert_subjects_to_stack() and
7226 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7227 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7228 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7229 This means that Apache-SSL and similar packages don't have to mess around
7230 to add as many CAs as they want to the preferred list.
7233 *) Experiment with doxygen documentation. Currently only partially applied to
7235 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7236 openssl.doxy as the configuration file.
7239 *) Get rid of remaining C++-style comments which strict C compilers hate.
7240 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7242 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7243 compiled in by default: it has problems with large keys.
7246 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7247 DH private keys and/or callback functions which directly correspond to
7248 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7249 is needed for applications which have to configure certificates on a
7250 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7252 For the RSA certificate situation is makes no difference, but
7253 for the DSA certificate situation this fixes the "no shared cipher"
7254 problem where the OpenSSL cipher selection procedure failed because the
7255 temporary keys were not overtaken from the context and the API provided
7256 no way to reconfigure them.
7257 The new functions now let applications reconfigure the stuff and they
7258 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7259 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7260 non-public-API function ssl_cert_instantiate() is used as a helper
7261 function and also to reduce code redundancy inside ssl_rsa.c.
7262 [Ralf S. Engelschall]
7264 *) Move s_server -dcert and -dkey options out of the undocumented feature
7265 area because they are useful for the DSA situation and should be
7266 recognized by the users.
7267 [Ralf S. Engelschall]
7269 *) Fix the cipher decision scheme for export ciphers: the export bits are
7270 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7271 SSL_EXP_MASK. So, the original variable has to be used instead of the
7272 already masked variable.
7273 [Richard Levitte <levitte@stacken.kth.se>]
7275 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7276 [Richard Levitte <levitte@stacken.kth.se>]
7278 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7279 from `int' to `unsigned int' because it's a length and initialized by
7280 EVP_DigestFinal() which expects an `unsigned int *'.
7281 [Richard Levitte <levitte@stacken.kth.se>]
7283 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7284 script. Instead use the usual Shell->Perl transition trick.
7285 [Ralf S. Engelschall]
7287 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7288 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7289 -noout -modulus' as it's already the case for `openssl rsa -noout
7290 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7291 currently the public key is printed (a decision which was already done by
7292 `openssl dsa -modulus' in the past) which serves a similar purpose.
7293 Additionally the NO_RSA no longer completely removes the whole -modulus
7294 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7296 [Ralf S. Engelschall]
7298 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7299 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7300 [Arne Ansper <arne@ats.cyber.ee>]
7302 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7303 to be added. Now both 'req' and 'ca' can use new objects defined in the
7307 *) Add cool BIO that does syslog (or event log on NT).
7308 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7310 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7311 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7312 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7313 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7316 *) Add preliminary config info for new extension code.
7319 *) Make RSA_NO_PADDING really use no padding.
7320 [Ulf Moeller <ulf@fitug.de>]
7322 *) Generate errors when private/public key check is done.
7325 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7326 for some CRL extensions and new objects added.
7329 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7330 key usage extension and fuller support for authority key id.
7333 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7334 padding method for RSA, which is recommended for new applications in PKCS
7335 #1 v2.0 (RFC 2437, October 1998).
7336 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7337 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7338 against Bleichbacher's attack on RSA.
7339 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7342 *) Updates to the new SSL compression code
7343 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7345 *) Fix so that the version number in the master secret, when passed
7346 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7347 (because the server will not accept higher), that the version number
7348 is 0x03,0x01, not 0x03,0x00
7349 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7351 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7352 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7353 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7356 *) Support for RAW extensions where an arbitrary extension can be
7357 created by including its DER encoding. See apps/openssl.cnf for
7361 *) Make sure latest Perl versions don't interpret some generated C array
7362 code as Perl array code in the crypto/err/err_genc.pl script.
7363 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7365 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7366 not many people have the assembler. Various Win32 compilation fixes and
7367 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7371 *) Modify configure script 'Configure' to automatically create crypto/date.h
7372 file under Win32 and also build pem.h from pem.org. New script
7373 util/mkfiles.pl to create the MINFO file on environments that can't do a
7374 'make files': perl util/mkfiles.pl >MINFO should work.
7377 *) Major rework of DES function declarations, in the pursuit of correctness
7378 and purity. As a result, many evil casts evaporated, and some weirdness,
7379 too. You may find this causes warnings in your code. Zapping your evil
7380 casts will probably fix them. Mostly.
7383 *) Fix for a typo in asn1.h. Bug fix to object creation script
7384 obj_dat.pl. It considered a zero in an object definition to mean
7385 "end of object": none of the objects in objects.h have any zeros
7386 so it wasn't spotted.
7387 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7389 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7390 Masking (CBCM). In the absence of test vectors, the best I have been able
7391 to do is check that the decrypt undoes the encrypt, so far. Send me test
7392 vectors if you have them.
7395 *) Correct calculation of key length for export ciphers (too much space was
7396 allocated for null ciphers). This has not been tested!
7399 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7400 message is now correct (it understands "crypto" and "ssl" on its
7401 command line). There is also now an "update" option. This will update
7402 the util/ssleay.num and util/libeay.num files with any new functions.
7404 perl util/mkdef.pl crypto ssl update
7405 it will update them.
7408 *) Overhauled the Perl interface (perl/*):
7409 - ported BN stuff to OpenSSL's different BN library
7410 - made the perl/ source tree CVS-aware
7411 - renamed the package from SSLeay to OpenSSL (the files still contain
7412 their history because I've copied them in the repository)
7413 - removed obsolete files (the test scripts will be replaced
7414 by better Test::Harness variants in the future)
7415 [Ralf S. Engelschall]
7417 *) First cut for a very conservative source tree cleanup:
7418 1. merge various obsolete readme texts into doc/ssleay.txt
7419 where we collect the old documents and readme texts.
7420 2. remove the first part of files where I'm already sure that we no
7421 longer need them because of three reasons: either they are just temporary
7422 files which were left by Eric or they are preserved original files where
7423 I've verified that the diff is also available in the CVS via "cvs diff
7424 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7425 the crypto/md/ stuff).
7426 [Ralf S. Engelschall]
7428 *) More extension code. Incomplete support for subject and issuer alt
7429 name, issuer and authority key id. Change the i2v function parameters
7430 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7431 what that's for :-) Fix to ASN1 macro which messed up
7432 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7435 *) Preliminary support for ENUMERATED type. This is largely copied from the
7439 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7440 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7442 *) Make sure `make rehash' target really finds the `openssl' program.
7443 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7445 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7446 like to hear about it if this slows down other processors.
7449 *) Add CygWin32 platform information to Configure script.
7450 [Alan Batie <batie@aahz.jf.intel.com>]
7452 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7453 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7455 *) New program nseq to manipulate netscape certificate sequences
7458 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7462 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7463 but the BN code had some problems that would cause failures when
7464 doing certificate verification and some other functions.
7465 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7467 *) Add ASN1 and PEM code to support netscape certificate sequences.
7470 *) Add ASN1 and PEM code to support netscape certificate sequences.
7473 *) Add several PKIX and private extended key usage OIDs.
7476 *) Modify the 'ca' program to handle the new extension code. Modify
7477 openssl.cnf for new extension format, add comments.
7480 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7481 and add a sample to openssl.cnf so req -x509 now adds appropriate
7485 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7486 error code, add initial support to X509_print() and x509 application.
7489 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7490 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7491 stuff is currently isolated and isn't even compiled yet.
7494 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7495 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7496 Removed the versions check from X509 routines when loading extensions:
7497 this allows certain broken certificates that don't set the version
7498 properly to be processed.
7501 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7502 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7503 can still be regenerated with "make depend".
7506 *) Spelling mistake in C version of CAST-128.
7507 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7509 *) Changes to the error generation code. The perl script err-code.pl
7510 now reads in the old error codes and retains the old numbers, only
7511 adding new ones if necessary. It also only changes the .err files if new
7512 codes are added. The makefiles have been modified to only insert errors
7513 when needed (to avoid needlessly modifying header files). This is done
7514 by only inserting errors if the .err file is newer than the auto generated
7515 C file. To rebuild all the error codes from scratch (the old behaviour)
7516 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7517 or delete all the .err files.
7520 *) CAST-128 was incorrectly implemented for short keys. The C version has
7521 been fixed, but is untested. The assembler versions are also fixed, but
7522 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7523 to regenerate it if needed.
7524 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7525 Hagino <itojun@kame.net>]
7527 *) File was opened incorrectly in randfile.c.
7528 [Ulf Möller <ulf@fitug.de>]
7530 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7531 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7532 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7533 al: it's just almost always a UTCTime. Note this patch adds new error
7534 codes so do a "make errors" if there are problems.
7537 *) Correct Linux 1 recognition in config.
7538 [Ulf Möller <ulf@fitug.de>]
7540 *) Remove pointless MD5 hash when using DSA keys in ca.
7541 [Anonymous <nobody@replay.com>]
7543 *) Generate an error if given an empty string as a cert directory. Also
7544 generate an error if handed NULL (previously returned 0 to indicate an
7545 error, but didn't set one).
7546 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7548 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7551 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7552 parameters. This was causing a warning which killed off the Win32 compile.
7555 *) Remove C++ style comments from crypto/bn/bn_local.h.
7556 [Neil Costigan <neil.costigan@celocom.com>]
7558 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7559 based on a text string, looking up short and long names and finally
7560 "dot" format. The "dot" format stuff didn't work. Added new function
7561 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
7562 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
7563 OID is not part of the table.
7566 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
7567 X509_LOOKUP_by_alias().
7570 *) Sort openssl functions by name.
7573 *) Get the gendsa program working (hopefully) and add it to app list. Remove
7574 encryption from sample DSA keys (in case anyone is interested the password
7578 *) Make _all_ *_free functions accept a NULL pointer.
7579 [Frans Heymans <fheymans@isaserver.be>]
7581 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
7583 [Anonymous <nobody@replay.com>]
7585 *) s_server should send the CAfile as acceptable CAs, not its own cert.
7586 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7588 *) Don't blow it for numeric -newkey arguments to apps/req.
7589 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7591 *) Temp key "for export" tests were wrong in s3_srvr.c.
7592 [Anonymous <nobody@replay.com>]
7594 *) Add prototype for temp key callback functions
7595 SSL_CTX_set_tmp_{rsa,dh}_callback().
7598 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
7599 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
7602 *) X509_name_add_entry() freed the wrong thing after an error.
7603 [Arne Ansper <arne@ats.cyber.ee>]
7605 *) rsa_eay.c would attempt to free a NULL context.
7606 [Arne Ansper <arne@ats.cyber.ee>]
7608 *) BIO_s_socket() had a broken should_retry() on Windoze.
7609 [Arne Ansper <arne@ats.cyber.ee>]
7611 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
7612 [Arne Ansper <arne@ats.cyber.ee>]
7614 *) Make sure the already existing X509_STORE->depth variable is initialized
7615 in X509_STORE_new(), but document the fact that this variable is still
7616 unused in the certificate verification process.
7617 [Ralf S. Engelschall]
7619 *) Fix the various library and apps files to free up pkeys obtained from
7620 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
7623 *) Fix reference counting in X509_PUBKEY_get(). This makes
7624 demos/maurice/example2.c work, amongst others, probably.
7625 [Steve Henson and Ben Laurie]
7627 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
7628 `openssl' and second, the shortcut symlinks for the `openssl <command>'
7629 are no longer created. This way we have a single and consistent command
7630 line interface `openssl <command>', similar to `cvs <command>'.
7631 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
7633 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
7634 BIT STRING wrapper always have zero unused bits.
7637 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
7640 *) Make the top-level INSTALL documentation easier to understand.
7643 *) Makefiles updated to exit if an error occurs in a sub-directory
7644 make (including if user presses ^C) [Paul Sutton]
7646 *) Make Montgomery context stuff explicit in RSA data structure.
7649 *) Fix build order of pem and err to allow for generated pem.h.
7652 *) Fix renumbering bug in X509_NAME_delete_entry().
7655 *) Enhanced the err-ins.pl script so it makes the error library number
7656 global and can add a library name. This is needed for external ASN1 and
7657 other error libraries.
7660 *) Fixed sk_insert which never worked properly.
7663 *) Fix ASN1 macros so they can handle indefinite length construted
7664 EXPLICIT tags. Some non standard certificates use these: they can now
7668 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
7669 into a single doc/ssleay.txt bundle. This way the information is still
7670 preserved but no longer messes up this directory. Now it's new room for
7671 the new set of documenation files.
7672 [Ralf S. Engelschall]
7674 *) SETs were incorrectly DER encoded. This was a major pain, because they
7675 shared code with SEQUENCEs, which aren't coded the same. This means that
7676 almost everything to do with SETs or SEQUENCEs has either changed name or
7677 number of arguments.
7678 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
7680 *) Fix test data to work with the above.
7683 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
7684 was already fixed by Eric for 0.9.1 it seems.
7685 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
7687 *) Autodetect FreeBSD3.
7690 *) Fix various bugs in Configure. This affects the following platforms:
7694 unixware-2.0-pentium
7698 *) Eliminate generated files from CVS. Reorder tests to regenerate files
7699 before they are needed.
7702 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
7706 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
7708 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
7709 changed SSLeay to OpenSSL in version strings.
7710 [Ralf S. Engelschall]
7712 *) Some fixups to the top-level documents.
7715 *) Fixed the nasty bug where rsaref.h was not found under compile-time
7716 because the symlink to include/ was missing.
7717 [Ralf S. Engelschall]
7719 *) Incorporated the popular no-RSA/DSA-only patches
7720 which allow to compile a RSA-free SSLeay.
7721 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
7723 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
7724 when "ssleay" is still not found.
7725 [Ralf S. Engelschall]
7727 *) Added more platforms to Configure: Cray T3E, HPUX 11,
7728 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
7730 *) Updated the README file.
7731 [Ralf S. Engelschall]
7733 *) Added various .cvsignore files in the CVS repository subdirs
7734 to make a "cvs update" really silent.
7735 [Ralf S. Engelschall]
7737 *) Recompiled the error-definition header files and added
7738 missing symbols to the Win32 linker tables.
7739 [Ralf S. Engelschall]
7741 *) Cleaned up the top-level documents;
7742 o new files: CHANGES and LICENSE
7743 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
7744 o merged COPYRIGHT into LICENSE
7745 o removed obsolete TODO file
7746 o renamed MICROSOFT to INSTALL.W32
7747 [Ralf S. Engelschall]
7749 *) Removed dummy files from the 0.9.1b source tree:
7750 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
7751 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
7752 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
7753 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
7754 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
7755 [Ralf S. Engelschall]
7757 *) Added various platform portability fixes.
7760 *) The Genesis of the OpenSSL rpject:
7761 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
7762 Young and Tim J. Hudson created while they were working for C2Net until
7764 [The OpenSSL Project]
7767 Changes between 0.9.0b and 0.9.1b [not released]
7769 *) Updated a few CA certificates under certs/
7772 *) Changed some BIGNUM api stuff.
7775 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
7776 DGUX x86, Linux Alpha, etc.
7779 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
7780 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
7784 *) Add -strparse option to asn1pars program which parses nested
7786 [Dr Stephen Henson <shenson@bigfoot.com>]
7788 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
7791 *) DSA fix for "ca" program.
7794 *) Added "-genkey" option to "dsaparam" program.
7797 *) Added RIPE MD160 (rmd160) message digest.
7800 *) Added -a (all) option to "ssleay version" command.
7803 *) Added PLATFORM define which is the id given to Configure.
7806 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
7809 *) Extended the ASN.1 parser routines.
7812 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
7815 *) Added a BN_CTX to the BN library.
7818 *) Fixed the weak key values in DES library
7821 *) Changed API in EVP library for cipher aliases.
7824 *) Added support for RC2/64bit cipher.
7827 *) Converted the lhash library to the crypto/mem.c functions.
7830 *) Added more recognized ASN.1 object ids.
7833 *) Added more RSA padding checks for SSL/TLS.
7836 *) Added BIO proxy/filter functionality.
7839 *) Added extra_certs to SSL_CTX which can be used
7840 send extra CA certificates to the client in the CA cert chain sending
7841 process. It can be configured with SSL_CTX_add_extra_chain_cert().
7844 *) Now Fortezza is denied in the authentication phase because
7845 this is key exchange mechanism is not supported by SSLeay at all.
7848 *) Additional PKCS1 checks.
7851 *) Support the string "TLSv1" for all TLS v1 ciphers.
7854 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
7855 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
7858 *) Fixed a few memory leaks.
7861 *) Fixed various code and comment typos.
7864 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
7865 bytes sent in the client random.
7866 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob