5 Changes between 0.9.8b and 0.9.9 [xx XXX xxxx]
7 *) Change the array representation of binary polynomials: the list
8 of degrees of non-zero coefficients is now terminated with -1.
9 Previously it was terminated with 0, which was also part of the
10 value; thus, the array representation was not applicable to
11 polynomials where t^0 has coefficient zero. This change makes
12 the array representation useful in a more general context.
15 *) Various modifications and fixes to SSL/TLS cipher string
16 handling. For ECC, the code now distinguishes between fixed ECDH
17 with RSA certificates on the one hand and with ECDSA certificates
18 on the other hand, since these are separate ciphersuites. The
19 unused code for Fortezza ciphersuites has been removed.
21 For consistency with EDH, ephemeral ECDH is now called "EECDH"
22 (not "ECDHE"). For consistency with the code for DH
23 certificates, use of ECDH certificates is now considered ECDH
24 authentication, not RSA or ECDSA authentication (the latter is
25 merely the CA's signing algorithm and not actively used in the
28 The temporary ciphersuite alias "ECCdraft" is no longer
29 available, and ECC ciphersuites are no longer excluded from "ALL"
30 and "DEFAULT". The following aliases now exist for RFC 4492
31 ciphersuites, most of these by analogy with the DH case:
33 kECDHr - ECDH cert, signed with RSA
34 kECDHe - ECDH cert, signed with ECDSA
35 kECDH - ECDH cert (signed with either RSA or ECDSA)
36 kEECDH - ephemeral ECDH
37 ECDH - ECDH cert or ephemeral ECDH
43 AECDH - anonymous ECDH
44 EECDH - non-anonymous ephemeral ECDH (equivalent to "kEECDH:-AECDH")
48 *) Add additional S/MIME capabilities for AES and GOST ciphers if supported.
49 Use correct micalg parameters depending on digest(s) in signed message.
52 *) Add engine support for EVP_PKEY_ASN1_METHOD. Add functions to process
53 an ENGINE asn1 method. Support ENGINE lookups in the ASN1 code.
56 *) Initial engine support for EVP_PKEY_METHOD. New functions to permit
57 an engine to register a method. Add ENGINE lookups for methods and
58 functional reference processing.
61 *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
62 EVP_{Sign,Verify}* which allow an application to customise the signature
66 *) New -resign option to smime utility. This adds one or more signers
67 to an existing PKCS#7 signedData structure. Also -md option to use an
68 alternative message digest algorithm for signing.
71 *) Tidy up PKCS#7 routines and add new functions to make it easier to
72 create PKCS7 structures containing multiple signers. Update smime
73 application to support multiple signers.
76 *) New -macalg option to pkcs12 utility to allow setting of an alternative
80 *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
81 Reorganize PBE internals to lookup from a static table using NIDs,
82 add support for HMAC PBE OID translation. Add a EVP_CIPHER ctrl:
83 EVP_CTRL_PBE_PRF_NID this allows a cipher to specify an alternative
84 PRF which will be automatically used with PBES2.
87 *) Replace the algorithm specific calls to generate keys in "req" with the
91 *) Update PKCS#7 enveloped data routines to use new API. This is now
92 supported by any public key method supporting the encrypt operation. A
93 ctrl is added to allow the public key algorithm to examine or modify
94 the PKCS#7 RecipientInfo structure if it needs to: for RSA this is
98 *) Add a ctrl to asn1 method to allow a public key algorithm to express
99 a default digest type to use. In most cases this will be SHA1 but some
100 algorithms (such as GOST) need to specify an alternative digest. The
101 return value indicates how strong the prefernce is 1 means optional and
102 2 is mandatory (that is it is the only supported type). Modify
103 ASN1_item_sign() to accept a NULL digest argument to indicate it should
104 use the default md. Update openssl utilities to use the default digest
105 type for signing if it is not explicitly indicated.
108 *) Use OID cross reference table in ASN1_sign() and ASN1_verify(). New
109 EVP_MD flag EVP_MD_FLAG_PKEY_METHOD_SIGNATURE. This uses the relevant
110 signing method from the key type. This effectively removes the link
111 between digests and public key types.
114 *) Add an OID cross reference table and utility functions. Its purpose is to
115 translate between signature OIDs such as SHA1WithrsaEncryption and SHA1,
116 rsaEncryption. This will allow some of the algorithm specific hackery
117 needed to use the correct OID to be removed.
120 *) Remove algorithm specific dependencies when setting PKCS7_SIGNER_INFO
121 structures for PKCS7_sign(). They are now set up by the relevant public
125 *) Add provisional EC pkey method with support for ECDSA and ECDH.
128 *) Add support for key derivation (agreement) in the API, DH method and
132 *) Add DSA pkey method and DH pkey methods, extend DH ASN1 method to support
133 public and private key formats. As a side effect these add additional
134 command line functionality not previously available: DSA signatures can be
135 generated and verified using pkeyutl and DH key support and generation in
140 [Oliver Tappe <zooey@hirschkaefer.de>]
142 *) New make target "install_html_docs" installs HTML renditions of the
144 [Oliver Tappe <zooey@hirschkaefer.de>]
146 *) New utility "genpkey" this is analagous to "genrsa" etc except it can
147 generate keys for any algorithm. Extend and update EVP_PKEY_METHOD to
148 support key and parameter generation and add initial key generation
149 functionality for RSA.
152 *) Add functions for main EVP_PKEY_method operations. The undocumented
153 functions EVP_PKEY_{encrypt,decrypt} have been renamed to
154 EVP_PKEY_{encrypt,decrypt}_old.
157 *) Initial definitions for EVP_PKEY_METHOD. This will be a high level public
158 key API, doesn't do much yet.
161 *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
162 public key algorithms. New option to openssl utility:
163 "list-public-key-algorithms" to print out info.
166 *) Implement the Supported Elliptic Curves Extension for
167 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
170 *) Don't free up OIDs in OBJ_cleanup() if they are in use by EVP_MD or
171 EVP_CIPHER structures to avoid later problems in EVP_cleanup().
174 *) New utilities pkey and pkeyparam. These are similar to algorithm specific
175 utilities such as rsa, dsa, dsaparam etc except they process any key
179 *) Transfer public key printing routines to EVP_PKEY_ASN1_METHOD. New
180 functions EVP_PKEY_print_public(), EVP_PKEY_print_private(),
181 EVP_PKEY_print_param() to print public key data from an EVP_PKEY
185 *) Initial support for pluggable public key ASN1.
186 De-spaghettify the public key ASN1 handling. Move public and private
187 key ASN1 handling to a new EVP_PKEY_ASN1_METHOD structure. Relocate
188 algorithm specific handling to a single module within the relevant
189 algorithm directory. Add functions to allow (near) opaque processing
190 of public and private key structures.
193 *) Implement the Supported Point Formats Extension for
194 ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
197 *) Add initial support for RFC 4279 PSK TLS ciphersuites. Add members
198 for the psk identity [hint] and the psk callback functions to the
199 SSL_SESSION, SSL and SSL_CTX structure.
202 PSK-RC4-SHA, PSK-3DES-EDE-CBC-SHA, PSK-AES128-CBC-SHA,
206 SSL_CTX_use_psk_identity_hint
207 SSL_get_psk_identity_hint
209 SSL_use_psk_identity_hint
211 [Mika Kousa and Pasi Eronen of Nokia Corporation]
213 *) Add RFC 3161 compliant time stamp request creation, response generation
214 and response verification functionality.
215 [Zoltán Glózik <zglozik@opentsa.org>, The OpenTSA Project]
217 *) Add initial support for TLS extensions, specifically for the server_name
218 extension so far. The SSL_SESSION, SSL_CTX, and SSL data structures now
219 have new members for a host name. The SSL data structure has an
220 additional member SSL_CTX *initial_ctx so that new sessions can be
221 stored in that context to allow for session resumption, even after the
222 SSL has been switched to a new SSL_CTX in reaction to a client's
223 server_name extension.
225 New functions (subject to change):
228 SSL_get_servername_type()
231 New CTRL codes and macros (subject to change):
233 SSL_CTRL_SET_TLSEXT_SERVERNAME_CB
234 - SSL_CTX_set_tlsext_servername_callback()
235 SSL_CTRL_SET_TLSEXT_SERVERNAME_ARG
236 - SSL_CTX_set_tlsext_servername_arg()
237 SSL_CTRL_SET_TLSEXT_HOSTNAME - SSL_set_tlsext_hostname()
239 openssl s_client has a new '-servername ...' option.
241 openssl s_server has new options '-servername_host ...', '-cert2 ...',
242 '-key2 ...', '-servername_fatal' (subject to change). This allows
243 testing the HostName extension for a specific single host name ('-cert'
244 and '-key' remain fallbacks for handshakes without HostName
245 negotiation). If the unrecogninzed_name alert has to be sent, this by
246 default is a warning; it becomes fatal with the '-servername_fatal'
249 [Peter Sylvester, Remy Allais, Christophe Renou]
251 *) Whirlpool hash implementation is added.
254 *) BIGNUM code on 64-bit SPARCv9 targets is switched from bn(64,64) to
255 bn(64,32). Because of instruction set limitations it doesn't have
256 any negative impact on performance. This was done mostly in order
257 to make it possible to share assembler modules, such as bn_mul_mont
258 implementations, between 32- and 64-bit builds without hassle.
261 *) Move code previously exiled into file crypto/ec/ec2_smpt.c
262 to ec2_smpl.c, and no longer require the OPENSSL_EC_BIN_PT_COMP
266 *) New candidate for BIGNUM assembler implementation, bn_mul_mont,
267 dedicated Montgomery multiplication procedure, is introduced.
268 BN_MONT_CTX is modified to allow bn_mul_mont to reach for higher
269 "64-bit" performance on certain 32-bit targets.
272 *) New option SSL_OP_NO_COMP to disable use of compression selectively
273 in SSL structures. New SSL ctrl to set maximum send fragment size.
274 Save memory by seeting the I/O buffer sizes dynamically instead of
275 using the maximum available value.
278 *) New option -V for 'openssl ciphers'. This prints the ciphersuite code
279 in addition to the text details.
282 *) Very, very preliminary EXPERIMENTAL support for printing of general
283 ASN1 structures. This currently produces rather ugly output and doesn't
284 handle several customised structures at all.
287 *) Integrated support for PVK file format and some related formats such
288 as MS PUBLICKEYBLOB and PRIVATEKEYBLOB. Command line switches to support
289 these in the 'rsa' and 'dsa' utilities.
292 *) Support for PKCS#1 RSAPublicKey format on rsa utility command line.
295 *) Remove the ancient ASN1_METHOD code. This was only ever used in one
296 place for the (very old) "NETSCAPE" format certificates which are now
297 handled using new ASN1 code equivalents.
300 *) Let the TLSv1_method() etc. functions return a 'const' SSL_METHOD
301 pointer and make the SSL_METHOD parameter in SSL_CTX_new,
302 SSL_CTX_set_ssl_version and SSL_set_ssl_method 'const'.
305 *) Modify CRL distribution points extension code to print out previously
306 unsupported fields. Enhance extension setting code to allow setting of
310 *) Add print and set support for Issuing Distribution Point CRL extension.
313 *) Change 'Configure' script to enable Camellia by default.
316 Changes between 0.9.8b and 0.9.8c [xx XXX xxxx]
318 *) Disable "ECCdraft" ciphersuites more thoroughly. Now special
319 treatment in ssl/ssl_ciph.s makes sure that these ciphersuites
320 cannot be implicitly activated as part of, e.g., the "AES" alias.
321 However, please upgrade to OpenSSL 0.9.9[-dev] for
322 non-experimental use of the ECC ciphersuites to get TLS extension
323 support, which is required for curve and point format negotiation
324 to avoid potential handshake problems.
327 *) Disable rogue ciphersuites:
329 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
330 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
331 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
333 The latter two were purportedly from
334 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
337 Also deactive the remaining ciphersuites from
338 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
339 unofficial, and the ID has long expired.
342 *) Fix RSA blinding Heisenbug (problems sometimes occured on
343 dual-core machines) and other potential thread-safety issues.
346 *) Add the symmetric cipher Camellia (128-bit, 192-bit, 256-bit key
347 versions), which is now available for royalty-free use
348 (see http://info.isl.ntt.co.jp/crypt/eng/info/chiteki.html).
349 Also, add Camellia TLS ciphersuites from RFC 4132.
351 To minimize changes between patchlevels in the OpenSSL 0.9.8
352 series, Camellia remains excluded from compilation unless OpenSSL
353 is configured with 'enable-camellia'.
356 *) Disable the padding bug check when compression is in use. The padding
357 bug check assumes the first packet is of even length, this is not
358 necessarily true if compresssion is enabled and can result in false
359 positives causing handshake failure. The actual bug test is ancient
360 code so it is hoped that implementations will either have fixed it by
361 now or any which still have the bug do not support compression.
364 Changes between 0.9.8a and 0.9.8b [04 May 2006]
366 *) When applying a cipher rule check to see if string match is an explicit
367 cipher suite and only match that one cipher suite if it is.
370 *) Link in manifests for VC++ if needed.
371 [Austin Ziegler <halostatue@gmail.com>]
373 *) Update support for ECC-based TLS ciphersuites according to
374 draft-ietf-tls-ecc-12.txt with proposed changes (but without
375 TLS extensions, which are supported starting with the 0.9.9
376 branch, not in the OpenSSL 0.9.8 branch).
379 *) New functions EVP_CIPHER_CTX_new() and EVP_CIPHER_CTX_free() to support
380 opaque EVP_CIPHER_CTX handling.
383 *) Fixes and enhancements to zlib compression code. We now only use
384 "zlib1.dll" and use the default __cdecl calling convention on Win32
385 to conform with the standards mentioned here:
386 http://www.zlib.net/DLL_FAQ.txt
387 Static zlib linking now works on Windows and the new --with-zlib-include
388 --with-zlib-lib options to Configure can be used to supply the location
389 of the headers and library. Gracefully handle case where zlib library
393 *) Several fixes and enhancements to the OID generation code. The old code
394 sometimes allowed invalid OIDs (1.X for X >= 40 for example), couldn't
395 handle numbers larger than ULONG_MAX, truncated printing and had a
396 non standard OBJ_obj2txt() behaviour.
399 *) Add support for building of engines under engine/ as shared libraries
400 under VC++ build system.
403 *) Corrected the numerous bugs in the Win32 path splitter in DSO.
404 Hopefully, we will not see any false combination of paths any more.
407 Changes between 0.9.8 and 0.9.8a [11 Oct 2005]
409 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
410 (part of SSL_OP_ALL). This option used to disable the
411 countermeasure against man-in-the-middle protocol-version
412 rollback in the SSL 2.0 server implementation, which is a bad
413 idea. (CVE-2005-2969)
415 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
416 for Information Security, National Institute of Advanced Industrial
417 Science and Technology [AIST], Japan)]
419 *) Add two function to clear and return the verify parameter flags.
422 *) Keep cipherlists sorted in the source instead of sorting them at
423 runtime, thus removing the need for a lock.
426 *) Avoid some small subgroup attacks in Diffie-Hellman.
427 [Nick Mathewson and Ben Laurie]
429 *) Add functions for well-known primes.
432 *) Extended Windows CE support.
433 [Satoshi Nakamura and Andy Polyakov]
435 *) Initialize SSL_METHOD structures at compile time instead of during
436 runtime, thus removing the need for a lock.
439 *) Make PKCS7_decrypt() work even if no certificate is supplied by
440 attempting to decrypt each encrypted key in turn. Add support to
444 Changes between 0.9.7h and 0.9.8 [05 Jul 2005]
446 [NB: OpenSSL 0.9.7i and later 0.9.7 patch levels were released after
449 *) Add libcrypto.pc and libssl.pc for those who feel they need them.
452 *) Change CA.sh and CA.pl so they don't bundle the CSR and the private
453 key into the same file any more.
456 *) Add initial support for Win64, both IA64 and AMD64/x64 flavors.
459 *) Add -utf8 command line and config file option to 'ca'.
460 [Stefan <stf@udoma.org]
462 *) Removed the macro des_crypt(), as it seems to conflict with some
463 libraries. Use DES_crypt().
466 *) Correct naming of the 'chil' and '4758cca' ENGINEs. This
467 involves renaming the source and generated shared-libs for
468 both. The engines will accept the corrected or legacy ids
469 ('ncipher' and '4758_cca' respectively) when binding. NB,
470 this only applies when building 'shared'.
471 [Corinna Vinschen <vinschen@redhat.com> and Geoff Thorpe]
473 *) Add attribute functions to EVP_PKEY structure. Modify
474 PKCS12_create() to recognize a CSP name attribute and
475 use it. Make -CSP option work again in pkcs12 utility.
478 *) Add new functionality to the bn blinding code:
479 - automatic re-creation of the BN_BLINDING parameters after
480 a fixed number of uses (currently 32)
481 - add new function for parameter creation
482 - introduce flags to control the update behaviour of the
483 BN_BLINDING parameters
484 - hide BN_BLINDING structure
485 Add a second BN_BLINDING slot to the RSA structure to improve
486 performance when a single RSA object is shared among several
490 *) Add support for DTLS.
491 [Nagendra Modadugu <nagendra@cs.stanford.edu> and Ben Laurie]
493 *) Add support for DER encoded private keys (SSL_FILETYPE_ASN1)
494 to SSL_CTX_use_PrivateKey_file() and SSL_use_PrivateKey_file()
497 *) Remove buggy and incompletet DH cert support from
498 ssl/ssl_rsa.c and ssl/s3_both.c
501 *) Use SHA-1 instead of MD5 as the default digest algorithm for
502 the apps/openssl applications.
505 *) Compile clean with "-Wall -Wmissing-prototypes
506 -Wstrict-prototypes -Wmissing-declarations -Werror". Currently
507 DEBUG_SAFESTACK must also be set.
510 *) Change ./Configure so that certain algorithms can be disabled by default.
511 The new counterpiece to "no-xxx" is "enable-xxx".
513 The patented RC5 and MDC2 algorithms will now be disabled unless
514 "enable-rc5" and "enable-mdc2", respectively, are specified.
516 (IDEA remains enabled despite being patented. This is because IDEA
517 is frequently required for interoperability, and there is no license
518 fee for non-commercial use. As before, "no-idea" can be used to
519 avoid this algorithm.)
523 *) Add processing of proxy certificates (see RFC 3820). This work was
524 sponsored by KTH (The Royal Institute of Technology in Stockholm) and
525 EGEE (Enabling Grids for E-science in Europe).
528 *) RC4 performance overhaul on modern architectures/implementations, such
529 as Intel P4, IA-64 and AMD64.
532 *) New utility extract-section.pl. This can be used specify an alternative
533 section number in a pod file instead of having to treat each file as
534 a separate case in Makefile. This can be done by adding two lines to the
537 =for comment openssl_section:XXX
539 The blank line is mandatory.
543 *) New arguments -certform, -keyform and -pass for s_client and s_server
544 to allow alternative format key and certificate files and passphrase
548 *) New structure X509_VERIFY_PARAM which combines current verify parameters,
549 update associated structures and add various utility functions.
551 Add new policy related verify parameters, include policy checking in
552 standard verify code. Enhance 'smime' application with extra parameters
553 to support policy checking and print out.
556 *) Add a new engine to support VIA PadLock ACE extensions in the VIA C3
557 Nehemiah processors. These extensions support AES encryption in hardware
558 as well as RNG (though RNG support is currently disabled).
559 [Michal Ludvig <michal@logix.cz>, with help from Andy Polyakov]
561 *) Deprecate BN_[get|set]_params() functions (they were ignored internally).
564 *) New FIPS 180-2 algorithms, SHA-224/-256/-384/-512 are implemented.
565 [Andy Polyakov and a number of other people]
567 *) Improved PowerPC platform support. Most notably BIGNUM assembler
568 implementation contributed by IBM.
569 [Suresh Chari, Peter Waltenberg, Andy Polyakov]
571 *) The new 'RSA_generate_key_ex' function now takes a BIGNUM for the public
572 exponent rather than 'unsigned long'. There is a corresponding change to
573 the new 'rsa_keygen' element of the RSA_METHOD structure.
574 [Jelte Jansen, Geoff Thorpe]
576 *) Functionality for creating the initial serial number file is now
577 moved from CA.pl to the 'ca' utility with a new option -create_serial.
579 (Before OpenSSL 0.9.7e, CA.pl used to initialize the serial
580 number file to 1, which is bound to cause problems. To avoid
581 the problems while respecting compatibility between different 0.9.7
582 patchlevels, 0.9.7e employed 'openssl x509 -next_serial' in
583 CA.pl for serial number initialization. With the new release 0.9.8,
584 we can fix the problem directly in the 'ca' utility.)
587 *) Reduced header interdepencies by declaring more opaque objects in
588 ossl_typ.h. As a consequence, including some headers (eg. engine.h) will
589 give fewer recursive includes, which could break lazy source code - so
590 this change is covered by the OPENSSL_NO_DEPRECATED symbol. As always,
591 developers should define this symbol when building and using openssl to
592 ensure they track the recommended behaviour, interfaces, [etc], but
593 backwards-compatible behaviour prevails when this isn't defined.
596 *) New function X509_POLICY_NODE_print() which prints out policy nodes.
599 *) Add new EVP function EVP_CIPHER_CTX_rand_key and associated functionality.
600 This will generate a random key of the appropriate length based on the
601 cipher context. The EVP_CIPHER can provide its own random key generation
602 routine to support keys of a specific form. This is used in the des and
603 3des routines to generate a key of the correct parity. Update S/MIME
604 code to use new functions and hence generate correct parity DES keys.
605 Add EVP_CHECK_DES_KEY #define to return an error if the key is not
606 valid (weak or incorrect parity).
609 *) Add a local set of CRLs that can be used by X509_verify_cert() as well
610 as looking them up. This is useful when the verified structure may contain
611 CRLs, for example PKCS#7 signedData. Modify PKCS7_verify() to use any CRLs
612 present unless the new PKCS7_NO_CRL flag is asserted.
615 *) Extend ASN1 oid configuration module. It now additionally accepts the
618 shortName = some long name, 1.2.3.4
621 *) Reimplemented the BN_CTX implementation. There is now no more static
622 limitation on the number of variables it can handle nor the depth of the
623 "stack" handling for BN_CTX_start()/BN_CTX_end() pairs. The stack
624 information can now expand as required, and rather than having a single
625 static array of bignums, BN_CTX now uses a linked-list of such arrays
626 allowing it to expand on demand whilst maintaining the usefulness of
630 *) Add a missing BN_CTX parameter to the 'rsa_mod_exp' callback in RSA_METHOD
631 to allow all RSA operations to function using a single BN_CTX.
634 *) Preliminary support for certificate policy evaluation and checking. This
635 is initially intended to pass the tests outlined in "Conformance Testing
636 of Relying Party Client Certificate Path Processing Logic" v1.07.
639 *) bn_dup_expand() has been deprecated, it was introduced in 0.9.7 and
640 remained unused and not that useful. A variety of other little bignum
641 tweaks and fixes have also been made continuing on from the audit (see
645 *) Constify all or almost all d2i, c2i, s2i and r2i functions, along with
646 associated ASN1, EVP and SSL functions and old ASN1 macros.
649 *) BN_zero() only needs to set 'top' and 'neg' to zero for correct results,
650 and this should never fail. So the return value from the use of
651 BN_set_word() (which can fail due to needless expansion) is now deprecated;
652 if OPENSSL_NO_DEPRECATED is defined, BN_zero() is a void macro.
655 *) BN_CTX_get() should return zero-valued bignums, providing the same
656 initialised value as BN_new().
657 [Geoff Thorpe, suggested by Ulf Möller]
659 *) Support for inhibitAnyPolicy certificate extension.
662 *) An audit of the BIGNUM code is underway, for which debugging code is
663 enabled when BN_DEBUG is defined. This makes stricter enforcements on what
664 is considered valid when processing BIGNUMs, and causes execution to
665 assert() when a problem is discovered. If BN_DEBUG_RAND is defined,
666 further steps are taken to deliberately pollute unused data in BIGNUM
667 structures to try and expose faulty code further on. For now, openssl will
668 (in its default mode of operation) continue to tolerate the inconsistent
669 forms that it has tolerated in the past, but authors and packagers should
670 consider trying openssl and their own applications when compiled with
671 these debugging symbols defined. It will help highlight potential bugs in
672 their own code, and will improve the test coverage for OpenSSL itself. At
673 some point, these tighter rules will become openssl's default to improve
674 maintainability, though the assert()s and other overheads will remain only
675 in debugging configurations. See bn.h for more details.
676 [Geoff Thorpe, Nils Larsch, Ulf Möller]
678 *) BN_CTX_init() has been deprecated, as BN_CTX is an opaque structure
679 that can only be obtained through BN_CTX_new() (which implicitly
680 initialises it). The presence of this function only made it possible
681 to overwrite an existing structure (and cause memory leaks).
684 *) Because of the callback-based approach for implementing LHASH as a
685 template type, lh_insert() adds opaque objects to hash-tables and
686 lh_doall() or lh_doall_arg() are typically used with a destructor callback
687 to clean up those corresponding objects before destroying the hash table
688 (and losing the object pointers). So some over-zealous constifications in
689 LHASH have been relaxed so that lh_insert() does not take (nor store) the
690 objects as "const" and the lh_doall[_arg] callback wrappers are not
691 prototyped to have "const" restrictions on the object pointers they are
692 given (and so aren't required to cast them away any more).
695 *) The tmdiff.h API was so ugly and minimal that our own timing utility
696 (speed) prefers to use its own implementation. The two implementations
697 haven't been consolidated as yet (volunteers?) but the tmdiff API has had
698 its object type properly exposed (MS_TM) instead of casting to/from "char
699 *". This may still change yet if someone realises MS_TM and "ms_time_***"
700 aren't necessarily the greatest nomenclatures - but this is what was used
701 internally to the implementation so I've used that for now.
704 *) Ensure that deprecated functions do not get compiled when
705 OPENSSL_NO_DEPRECATED is defined. Some "openssl" subcommands and a few of
706 the self-tests were still using deprecated key-generation functions so
707 these have been updated also.
710 *) Reorganise PKCS#7 code to separate the digest location functionality
711 into PKCS7_find_digest(), digest addtion into PKCS7_bio_add_digest().
712 New function PKCS7_set_digest() to set the digest type for PKCS#7
713 digestedData type. Add additional code to correctly generate the
714 digestedData type and add support for this type in PKCS7 initialization
718 *) New function PKCS7_set0_type_other() this initializes a PKCS7
719 structure of type "other".
722 *) Fix prime generation loop in crypto/bn/bn_prime.pl by making
723 sure the loop does correctly stop and breaking ("division by zero")
724 modulus operations are not performed. The (pre-generated) prime
725 table crypto/bn/bn_prime.h was already correct, but it could not be
726 re-generated on some platforms because of the "division by zero"
727 situation in the script.
728 [Ralf S. Engelschall]
730 *) Update support for ECC-based TLS ciphersuites according to
731 draft-ietf-tls-ecc-03.txt: the KDF1 key derivation function with
732 SHA-1 now is only used for "small" curves (where the
733 representation of a field element takes up to 24 bytes); for
734 larger curves, the field element resulting from ECDH is directly
735 used as premaster secret.
736 [Douglas Stebila (Sun Microsystems Laboratories)]
738 *) Add code for kP+lQ timings to crypto/ec/ectest.c, and add SEC2
739 curve secp160r1 to the tests.
740 [Douglas Stebila (Sun Microsystems Laboratories)]
742 *) Add the possibility to load symbols globally with DSO.
743 [Götz Babin-Ebell <babin-ebell@trustcenter.de> via Richard Levitte]
745 *) Add the functions ERR_set_mark() and ERR_pop_to_mark() for better
746 control of the error stack.
749 *) Add support for STORE in ENGINE.
752 *) Add the STORE type. The intention is to provide a common interface
753 to certificate and key stores, be they simple file-based stores, or
754 HSM-type store, or LDAP stores, or...
755 NOTE: The code is currently UNTESTED and isn't really used anywhere.
758 *) Add a generic structure called OPENSSL_ITEM. This can be used to
759 pass a list of arguments to any function as well as provide a way
760 for a function to pass data back to the caller.
763 *) Add the functions BUF_strndup() and BUF_memdup(). BUF_strndup()
764 works like BUF_strdup() but can be used to duplicate a portion of
765 a string. The copy gets NUL-terminated. BUF_memdup() duplicates
769 *) Add the function sk_find_ex() which works like sk_find(), but will
770 return an index to an element even if an exact match couldn't be
771 found. The index is guaranteed to point at the element where the
772 searched-for key would be inserted to preserve sorting order.
775 *) Add the function OBJ_bsearch_ex() which works like OBJ_bsearch() but
776 takes an extra flags argument for optional functionality. Currently,
777 the following flags are defined:
779 OBJ_BSEARCH_VALUE_ON_NOMATCH
780 This one gets OBJ_bsearch_ex() to return a pointer to the first
781 element where the comparing function returns a negative or zero
784 OBJ_BSEARCH_FIRST_VALUE_ON_MATCH
785 This one gets OBJ_bsearch_ex() to return a pointer to the first
786 element where the comparing function returns zero. This is useful
787 if there are more than one element where the comparing function
791 *) Make it possible to create self-signed certificates with 'openssl ca'
792 in such a way that the self-signed certificate becomes part of the
793 CA database and uses the same mechanisms for serial number generation
794 as all other certificate signing. The new flag '-selfsign' enables
795 this functionality. Adapt CA.sh and CA.pl.in.
798 *) Add functionality to check the public key of a certificate request
799 against a given private. This is useful to check that a certificate
800 request can be signed by that key (self-signing).
803 *) Make it possible to have multiple active certificates with the same
804 subject in the CA index file. This is done only if the keyword
805 'unique_subject' is set to 'no' in the main CA section (default
806 if 'CA_default') of the configuration file. The value is saved
807 with the database itself in a separate index attribute file,
808 named like the index file with '.attr' appended to the name.
811 *) Generate muti valued AVAs using '+' notation in config files for
815 *) Support for nameConstraints certificate extension.
818 *) Support for policyConstraints certificate extension.
821 *) Support for policyMappings certificate extension.
824 *) Make sure the default DSA_METHOD implementation only uses its
825 dsa_mod_exp() and/or bn_mod_exp() handlers if they are non-NULL,
826 and change its own handlers to be NULL so as to remove unnecessary
827 indirection. This lets alternative implementations fallback to the
828 default implementation more easily.
831 *) Support for directoryName in GeneralName related extensions
835 *) Make it possible to link applications using Makefile.shared.
836 Make that possible even when linking against static libraries!
839 *) Support for single pass processing for S/MIME signing. This now
840 means that S/MIME signing can be done from a pipe, in addition
841 cleartext signing (multipart/signed type) is effectively streaming
842 and the signed data does not need to be all held in memory.
844 This is done with a new flag PKCS7_STREAM. When this flag is set
845 PKCS7_sign() only initializes the PKCS7 structure and the actual signing
846 is done after the data is output (and digests calculated) in
850 *) Add full support for -rpath/-R, both in shared libraries and
851 applications, at least on the platforms where it's known how
855 *) In crypto/ec/ec_mult.c, implement fast point multiplication with
856 precomputation, based on wNAF splitting: EC_GROUP_precompute_mult()
857 will now compute a table of multiples of the generator that
858 makes subsequent invocations of EC_POINTs_mul() or EC_POINT_mul()
859 faster (notably in the case of a single point multiplication,
861 [Nils Larsch, Bodo Moeller]
863 *) IPv6 support for certificate extensions. The various extensions
864 which use the IP:a.b.c.d can now take IPv6 addresses using the
865 formats of RFC1884 2.2 . IPv6 addresses are now also displayed
869 *) Added an ENGINE that implements RSA by performing private key
870 exponentiations with the GMP library. The conversions to and from
871 GMP's mpz_t format aren't optimised nor are any montgomery forms
872 cached, and on x86 it appears OpenSSL's own performance has caught up.
873 However there are likely to be other architectures where GMP could
874 provide a boost. This ENGINE is not built in by default, but it can be
875 specified at Configure time and should be accompanied by the necessary
876 linker additions, eg;
877 ./config -DOPENSSL_USE_GMP -lgmp
880 *) "openssl engine" will not display ENGINE/DSO load failure errors when
881 testing availability of engines with "-t" - the old behaviour is
882 produced by increasing the feature's verbosity with "-tt".
885 *) ECDSA routines: under certain error conditions uninitialized BN objects
886 could be freed. Solution: make sure initialization is performed early
887 enough. (Reported and fix supplied by Nils Larsch <nla@trustcenter.de>
891 *) Key-generation can now be implemented in RSA_METHOD, DSA_METHOD
892 and DH_METHOD (eg. by ENGINE implementations) to override the normal
893 software implementations. For DSA and DH, parameter generation can
894 also be overriden by providing the appropriate method callbacks.
897 *) Change the "progress" mechanism used in key-generation and
898 primality testing to functions that take a new BN_GENCB pointer in
899 place of callback/argument pairs. The new API functions have "_ex"
900 postfixes and the older functions are reimplemented as wrappers for
901 the new ones. The OPENSSL_NO_DEPRECATED symbol can be used to hide
902 declarations of the old functions to help (graceful) attempts to
903 migrate to the new functions. Also, the new key-generation API
904 functions operate on a caller-supplied key-structure and return
905 success/failure rather than returning a key or NULL - this is to
906 help make "keygen" another member function of RSA_METHOD etc.
908 Example for using the new callback interface:
910 int (*my_callback)(int a, int b, BN_GENCB *cb) = ...;
914 BN_GENCB_set(&my_cb, my_callback, my_arg);
916 return BN_is_prime_ex(some_bignum, BN_prime_checks, NULL, &cb);
917 /* For the meaning of a, b in calls to my_callback(), see the
918 * documentation of the function that calls the callback.
919 * cb will point to my_cb; my_arg can be retrieved as cb->arg.
920 * my_callback should return 1 if it wants BN_is_prime_ex()
921 * to continue, or 0 to stop.
926 *) Change the ZLIB compression method to be stateful, and make it
927 available to TLS with the number defined in
928 draft-ietf-tls-compression-04.txt.
931 *) Add the ASN.1 structures and functions for CertificatePair, which
932 is defined as follows (according to X.509_4thEditionDraftV6.pdf):
934 CertificatePair ::= SEQUENCE {
935 forward [0] Certificate OPTIONAL,
936 reverse [1] Certificate OPTIONAL,
937 -- at least one of the pair shall be present -- }
939 Also implement the PEM functions to read and write certificate
940 pairs, and defined the PEM tag as "CERTIFICATE PAIR".
942 This needed to be defined, mostly for the sake of the LDAP
943 attribute crossCertificatePair, but may prove useful elsewhere as
947 *) Make it possible to inhibit symlinking of shared libraries in
948 Makefile.shared, for Cygwin's sake.
951 *) Extend the BIGNUM API by creating a function
952 void BN_set_negative(BIGNUM *a, int neg);
953 and a macro that behave like
954 int BN_is_negative(const BIGNUM *a);
956 to avoid the need to access 'a->neg' directly in applications.
959 *) Implement fast modular reduction for pseudo-Mersenne primes
960 used in NIST curves (crypto/bn/bn_nist.c, crypto/ec/ecp_nist.c).
961 EC_GROUP_new_curve_GFp() will now automatically use this
963 [Nils Larsch <nla@trustcenter.de>]
965 *) Add new lock type (CRYPTO_LOCK_BN).
968 *) Change the ENGINE framework to automatically load engines
969 dynamically from specific directories unless they could be
970 found to already be built in or loaded. Move all the
971 current engines except for the cryptodev one to a new
973 The engines in engines/ are built as shared libraries if
974 the "shared" options was given to ./Configure or ./config.
975 Otherwise, they are inserted in libcrypto.a.
976 /usr/local/ssl/engines is the default directory for dynamic
977 engines, but that can be overriden at configure time through
978 the usual use of --prefix and/or --openssldir, and at run
979 time with the environment variable OPENSSL_ENGINES.
980 [Geoff Thorpe and Richard Levitte]
982 *) Add Makefile.shared, a helper makefile to build shared
983 libraries. Addapt Makefile.org.
986 *) Add version info to Win32 DLLs.
987 [Peter 'Luna' Runestig" <peter@runestig.com>]
989 *) Add new 'medium level' PKCS#12 API. Certificates and keys
990 can be added using this API to created arbitrary PKCS#12
991 files while avoiding the low level API.
993 New options to PKCS12_create(), key or cert can be NULL and
994 will then be omitted from the output file. The encryption
995 algorithm NIDs can be set to -1 for no encryption, the mac
996 iteration count can be set to 0 to omit the mac.
998 Enhance pkcs12 utility by making the -nokeys and -nocerts
999 options work when creating a PKCS#12 file. New option -nomac
1000 to omit the mac, NONE can be set for an encryption algorithm.
1001 New code is modified to use the enhanced PKCS12_create()
1002 instead of the low level API.
1005 *) Extend ASN1 encoder to support indefinite length constructed
1006 encoding. This can output sequences tags and octet strings in
1007 this form. Modify pk7_asn1.c to support indefinite length
1008 encoding. This is experimental and needs additional code to
1009 be useful, such as an ASN1 bio and some enhanced streaming
1012 Extend template encode functionality so that tagging is passed
1013 down to the template encoder.
1016 *) Let 'openssl req' fail if an argument to '-newkey' is not
1017 recognized instead of using RSA as a default.
1020 *) Add support for ECC-based ciphersuites from draft-ietf-tls-ecc-01.txt.
1021 As these are not official, they are not included in "ALL";
1022 the "ECCdraft" ciphersuite group alias can be used to select them.
1023 [Vipul Gupta and Sumit Gupta (Sun Microsystems Laboratories)]
1025 *) Add ECDH engine support.
1026 [Nils Gura and Douglas Stebila (Sun Microsystems Laboratories)]
1028 *) Add ECDH in new directory crypto/ecdh/.
1029 [Douglas Stebila (Sun Microsystems Laboratories)]
1031 *) Let BN_rand_range() abort with an error after 100 iterations
1032 without success (which indicates a broken PRNG).
1035 *) Change BN_mod_sqrt() so that it verifies that the input value
1036 is really the square of the return value. (Previously,
1037 BN_mod_sqrt would show GIGO behaviour.)
1040 *) Add named elliptic curves over binary fields from X9.62, SECG,
1041 and WAP/WTLS; add OIDs that were still missing.
1043 [Sheueling Chang Shantz and Douglas Stebila
1044 (Sun Microsystems Laboratories)]
1046 *) Extend the EC library for elliptic curves over binary fields
1047 (new files ec2_smpl.c, ec2_smpt.c, ec2_mult.c in crypto/ec/).
1050 EC_GF2m_simple_method
1054 EC_GROUP_new_curve_GF2m
1055 EC_GROUP_set_curve_GF2m
1056 EC_GROUP_get_curve_GF2m
1057 EC_POINT_set_affine_coordinates_GF2m
1058 EC_POINT_get_affine_coordinates_GF2m
1059 EC_POINT_set_compressed_coordinates_GF2m
1061 Point compression for binary fields is disabled by default for
1062 patent reasons (compile with OPENSSL_EC_BIN_PT_COMP defined to
1065 As binary polynomials are represented as BIGNUMs, various members
1066 of the EC_GROUP and EC_POINT data structures can be shared
1067 between the implementations for prime fields and binary fields;
1068 the above ..._GF2m functions (except for EX_GROUP_new_curve_GF2m)
1069 are essentially identical to their ..._GFp counterparts.
1070 (For simplicity, the '..._GFp' prefix has been dropped from
1071 various internal method names.)
1073 An internal 'field_div' method (similar to 'field_mul' and
1074 'field_sqr') has been added; this is used only for binary fields.
1076 [Sheueling Chang Shantz and Douglas Stebila
1077 (Sun Microsystems Laboratories)]
1079 *) Optionally dispatch EC_POINT_mul(), EC_POINT_precompute_mult()
1080 through methods ('mul', 'precompute_mult').
1082 The generic implementations (now internally called 'ec_wNAF_mul'
1083 and 'ec_wNAF_precomputed_mult') remain the default if these
1084 methods are undefined.
1086 [Sheueling Chang Shantz and Douglas Stebila
1087 (Sun Microsystems Laboratories)]
1089 *) New function EC_GROUP_get_degree, which is defined through
1090 EC_METHOD. For curves over prime fields, this returns the bit
1091 length of the modulus.
1093 [Sheueling Chang Shantz and Douglas Stebila
1094 (Sun Microsystems Laboratories)]
1096 *) New functions EC_GROUP_dup, EC_POINT_dup.
1097 (These simply call ..._new and ..._copy).
1099 [Sheueling Chang Shantz and Douglas Stebila
1100 (Sun Microsystems Laboratories)]
1102 *) Add binary polynomial arithmetic software in crypto/bn/bn_gf2m.c.
1103 Polynomials are represented as BIGNUMs (where the sign bit is not
1104 used) in the following functions [macros]:
1107 BN_GF2m_sub [= BN_GF2m_add]
1108 BN_GF2m_mod [wrapper for BN_GF2m_mod_arr]
1109 BN_GF2m_mod_mul [wrapper for BN_GF2m_mod_mul_arr]
1110 BN_GF2m_mod_sqr [wrapper for BN_GF2m_mod_sqr_arr]
1112 BN_GF2m_mod_exp [wrapper for BN_GF2m_mod_exp_arr]
1113 BN_GF2m_mod_sqrt [wrapper for BN_GF2m_mod_sqrt_arr]
1114 BN_GF2m_mod_solve_quad [wrapper for BN_GF2m_mod_solve_quad_arr]
1115 BN_GF2m_cmp [= BN_ucmp]
1117 (Note that only the 'mod' functions are actually for fields GF(2^m).
1118 BN_GF2m_add() is misnomer, but this is for the sake of consistency.)
1120 For some functions, an the irreducible polynomial defining a
1121 field can be given as an 'unsigned int[]' with strictly
1122 decreasing elements giving the indices of those bits that are set;
1123 i.e., p[] represents the polynomial
1124 f(t) = t^p[0] + t^p[1] + ... + t^p[k]
1126 p[0] > p[1] > ... > p[k] = 0.
1127 This applies to the following functions:
1132 BN_GF2m_mod_inv_arr [wrapper for BN_GF2m_mod_inv]
1133 BN_GF2m_mod_div_arr [wrapper for BN_GF2m_mod_div]
1135 BN_GF2m_mod_sqrt_arr
1136 BN_GF2m_mod_solve_quad_arr
1140 Conversion can be performed by the following functions:
1145 bntest.c has additional tests for binary polynomial arithmetic.
1147 Two implementations for BN_GF2m_mod_div() are available.
1148 The default algorithm simply uses BN_GF2m_mod_inv() and
1149 BN_GF2m_mod_mul(). The alternative algorithm is compiled in only
1150 if OPENSSL_SUN_GF2M_DIV is defined (patent pending; read the
1151 copyright notice in crypto/bn/bn_gf2m.c before enabling it).
1153 [Sheueling Chang Shantz and Douglas Stebila
1154 (Sun Microsystems Laboratories)]
1156 *) Add new error code 'ERR_R_DISABLED' that can be used when some
1157 functionality is disabled at compile-time.
1158 [Douglas Stebila <douglas.stebila@sun.com>]
1160 *) Change default behaviour of 'openssl asn1parse' so that more
1161 information is visible when viewing, e.g., a certificate:
1163 Modify asn1_parse2 (crypto/asn1/asn1_par.c) so that in non-'dump'
1164 mode the content of non-printable OCTET STRINGs is output in a
1165 style similar to INTEGERs, but with '[HEX DUMP]' prepended to
1166 avoid the appearance of a printable string.
1167 [Nils Larsch <nla@trustcenter.de>]
1169 *) Add 'asn1_flag' and 'asn1_form' member to EC_GROUP with access
1171 EC_GROUP_set_asn1_flag()
1172 EC_GROUP_get_asn1_flag()
1173 EC_GROUP_set_point_conversion_form()
1174 EC_GROUP_get_point_conversion_form()
1175 These control ASN1 encoding details:
1176 - Curves (i.e., groups) are encoded explicitly unless asn1_flag
1177 has been set to OPENSSL_EC_NAMED_CURVE.
1178 - Points are encoded in uncompressed form by default; options for
1179 asn1_for are as for point2oct, namely
1180 POINT_CONVERSION_COMPRESSED
1181 POINT_CONVERSION_UNCOMPRESSED
1182 POINT_CONVERSION_HYBRID
1184 Also add 'seed' and 'seed_len' members to EC_GROUP with access
1187 EC_GROUP_get0_seed()
1188 EC_GROUP_get_seed_len()
1189 This is used only for ASN1 purposes (so far).
1190 [Nils Larsch <nla@trustcenter.de>]
1192 *) Add 'field_type' member to EC_METHOD, which holds the NID
1193 of the appropriate field type OID. The new function
1194 EC_METHOD_get_field_type() returns this value.
1195 [Nils Larsch <nla@trustcenter.de>]
1200 EC_POINT_point2hex()
1201 EC_POINT_hex2point()
1202 providing useful interfaces to EC_POINT_point2oct() and
1203 EC_POINT_oct2point().
1204 [Nils Larsch <nla@trustcenter.de>]
1206 *) Change internals of the EC library so that the functions
1207 EC_GROUP_set_generator()
1208 EC_GROUP_get_generator()
1209 EC_GROUP_get_order()
1210 EC_GROUP_get_cofactor()
1211 are implemented directly in crypto/ec/ec_lib.c and not dispatched
1212 to methods, which would lead to unnecessary code duplication when
1213 adding different types of curves.
1214 [Nils Larsch <nla@trustcenter.de> with input by Bodo Moeller]
1216 *) Implement compute_wNAF (crypto/ec/ec_mult.c) without BIGNUM
1217 arithmetic, and such that modified wNAFs are generated
1218 (which avoid length expansion in many cases).
1221 *) Add a function EC_GROUP_check_discriminant() (defined via
1222 EC_METHOD) that verifies that the curve discriminant is non-zero.
1224 Add a function EC_GROUP_check() that makes some sanity tests
1225 on a EC_GROUP, its generator and order. This includes
1226 EC_GROUP_check_discriminant().
1227 [Nils Larsch <nla@trustcenter.de>]
1229 *) Add ECDSA in new directory crypto/ecdsa/.
1231 Add applications 'openssl ecparam' and 'openssl ecdsa'
1232 (these are based on 'openssl dsaparam' and 'openssl dsa').
1234 ECDSA support is also included in various other files across the
1235 library. Most notably,
1236 - 'openssl req' now has a '-newkey ecdsa:file' option;
1237 - EVP_PKCS82PKEY (crypto/evp/evp_pkey.c) now can handle ECDSA;
1238 - X509_PUBKEY_get (crypto/asn1/x_pubkey.c) and
1239 d2i_PublicKey (crypto/asn1/d2i_pu.c) have been modified to make
1240 them suitable for ECDSA where domain parameters must be
1241 extracted before the specific public key;
1242 - ECDSA engine support has been added.
1243 [Nils Larsch <nla@trustcenter.de>]
1245 *) Include some named elliptic curves, and add OIDs from X9.62,
1246 SECG, and WAP/WTLS. Each curve can be obtained from the new
1248 EC_GROUP_new_by_curve_name(),
1249 and the list of available named curves can be obtained with
1250 EC_get_builtin_curves().
1251 Also add a 'curve_name' member to EC_GROUP objects, which can be
1253 EC_GROUP_set_curve_name()
1254 EC_GROUP_get_curve_name()
1255 [Nils Larsch <larsch@trustcenter.de, Bodo Moeller]
1257 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
1258 was actually never needed) and in BN_mul(). The removal in BN_mul()
1259 required a small change in bn_mul_part_recursive() and the addition
1260 of the functions bn_cmp_part_words(), bn_sub_part_words() and
1261 bn_add_part_words(), which do the same thing as bn_cmp_words(),
1262 bn_sub_words() and bn_add_words() except they take arrays with
1266 Changes between 0.9.7j and 0.9.7k [xx XXX xxxx]
1268 *) Disable rogue ciphersuites:
1270 - SSLv2 0x08 0x00 0x80 ("RC4-64-MD5")
1271 - SSLv3/TLSv1 0x00 0x61 ("EXP1024-RC2-CBC-MD5")
1272 - SSLv3/TLSv1 0x00 0x60 ("EXP1024-RC4-MD5")
1274 The latter two were purportedly from
1275 draft-ietf-tls-56-bit-ciphersuites-0[01].txt, but do not really
1278 Also deactive the remaining ciphersuites from
1279 draft-ietf-tls-56-bit-ciphersuites-01.txt. These are just as
1280 unofficial, and the ID has long expired.
1283 *) Fix RSA blinding Heisenbug (problems sometimes occured on
1284 dual-core machines) and other potential thread-safety issues.
1287 Changes between 0.9.7i and 0.9.7j [04 May 2006]
1289 *) Adapt fipsld and the build system to link against the validated FIPS
1290 module in FIPS mode.
1293 *) Fixes for VC++ 2005 build under Windows.
1296 *) Add new Windows build target VC-32-GMAKE for VC++. This uses GNU make
1297 from a Windows bash shell such as MSYS. It is autodetected from the
1298 "config" script when run from a VC++ environment. Modify standard VC++
1299 build to use fipscanister.o from the GNU make build.
1302 Changes between 0.9.7h and 0.9.7i [14 Oct 2005]
1304 *) Wrapped the definition of EVP_MAX_MD_SIZE in a #ifdef OPENSSL_FIPS.
1305 The value now differs depending on if you build for FIPS or not.
1306 BEWARE! A program linked with a shared FIPSed libcrypto can't be
1307 safely run with a non-FIPSed libcrypto, as it may crash because of
1308 the difference induced by this change.
1311 Changes between 0.9.7g and 0.9.7h [11 Oct 2005]
1313 *) Remove the functionality of SSL_OP_MSIE_SSLV2_RSA_PADDING
1314 (part of SSL_OP_ALL). This option used to disable the
1315 countermeasure against man-in-the-middle protocol-version
1316 rollback in the SSL 2.0 server implementation, which is a bad
1317 idea. (CVE-2005-2969)
1319 [Bodo Moeller; problem pointed out by Yutaka Oiwa (Research Center
1320 for Information Security, National Institute of Advanced Industrial
1321 Science and Technology [AIST], Japan)]
1323 *) Minimal support for X9.31 signatures and PSS padding modes. This is
1324 mainly for FIPS compliance and not fully integrated at this stage.
1327 *) For DSA signing, unless DSA_FLAG_NO_EXP_CONSTTIME is set, perform
1328 the exponentiation using a fixed-length exponent. (Otherwise,
1329 the information leaked through timing could expose the secret key
1330 after many signatures; cf. Bleichenbacher's attack on DSA with
1334 *) Make a new fixed-window mod_exp implementation the default for
1335 RSA, DSA, and DH private-key operations so that the sequence of
1336 squares and multiplies and the memory access pattern are
1337 independent of the particular secret key. This will mitigate
1338 cache-timing and potential related attacks.
1340 BN_mod_exp_mont_consttime() is the new exponentiation implementation,
1341 and this is automatically used by BN_mod_exp_mont() if the new flag
1342 BN_FLG_EXP_CONSTTIME is set for the exponent. RSA, DSA, and DH
1343 will use this BN flag for private exponents unless the flag
1344 RSA_FLAG_NO_EXP_CONSTTIME, DSA_FLAG_NO_EXP_CONSTTIME, or
1345 DH_FLAG_NO_EXP_CONSTTIME, respectively, is set.
1347 [Matthew D Wood (Intel Corp), with some changes by Bodo Moeller]
1349 *) Change the client implementation for SSLv23_method() and
1350 SSLv23_client_method() so that is uses the SSL 3.0/TLS 1.0
1351 Client Hello message format if the SSL_OP_NO_SSLv2 option is set.
1352 (Previously, the SSL 2.0 backwards compatible Client Hello
1353 message format would be used even with SSL_OP_NO_SSLv2.)
1356 *) Add support for smime-type MIME parameter in S/MIME messages which some
1360 *) New function BN_MONT_CTX_set_locked() to set montgomery parameters in
1361 a threadsafe manner. Modify rsa code to use new function and add calls
1362 to dsa and dh code (which had race conditions before).
1365 *) Include the fixed error library code in the C error file definitions
1366 instead of fixing them up at runtime. This keeps the error code
1367 structures constant.
1370 Changes between 0.9.7f and 0.9.7g [11 Apr 2005]
1372 [NB: OpenSSL 0.9.7h and later 0.9.7 patch levels were released after
1375 *) Fixes for newer kerberos headers. NB: the casts are needed because
1376 the 'length' field is signed on one version and unsigned on another
1377 with no (?) obvious way to tell the difference, without these VC++
1378 complains. Also the "definition" of FAR (blank) is no longer included
1379 nor is the error ENOMEM. KRB5_PRIVATE has to be set to 1 to pick up
1380 some needed definitions.
1383 *) Undo Cygwin change.
1386 *) Added support for proxy certificates according to RFC 3820.
1387 Because they may be a security thread to unaware applications,
1388 they must be explicitely allowed in run-time. See
1389 docs/HOWTO/proxy_certificates.txt for further information.
1392 Changes between 0.9.7e and 0.9.7f [22 Mar 2005]
1394 *) Use (SSL_RANDOM_VALUE - 4) bytes of pseudo random data when generating
1395 server and client random values. Previously
1396 (SSL_RANDOM_VALUE - sizeof(time_t)) would be used which would result in
1397 less random data when sizeof(time_t) > 4 (some 64 bit platforms).
1399 This change has negligible security impact because:
1401 1. Server and client random values still have 24 bytes of pseudo random
1404 2. Server and client random values are sent in the clear in the initial
1407 3. The master secret is derived using the premaster secret (48 bytes in
1408 size for static RSA ciphersuites) as well as client server and random
1411 The OpenSSL team would like to thank the UK NISCC for bringing this issue
1414 [Stephen Henson, reported by UK NISCC]
1416 *) Use Windows randomness collection on Cygwin.
1419 *) Fix hang in EGD/PRNGD query when communication socket is closed
1420 prematurely by EGD/PRNGD.
1421 [Darren Tucker <dtucker@zip.com.au> via Lutz Jänicke, resolves #1014]
1423 *) Prompt for pass phrases when appropriate for PKCS12 input format.
1426 *) Back-port of selected performance improvements from development
1427 branch, as well as improved support for PowerPC platforms.
1430 *) Add lots of checks for memory allocation failure, error codes to indicate
1431 failure and freeing up memory if a failure occurs.
1432 [Nauticus Networks SSL Team <openssl@nauticusnet.com>, Steve Henson]
1434 *) Add new -passin argument to dgst.
1437 *) Perform some character comparisons of different types in X509_NAME_cmp:
1438 this is needed for some certificates that reencode DNs into UTF8Strings
1439 (in violation of RFC3280) and can't or wont issue name rollover
1443 *) Make an explicit check during certificate validation to see that
1444 the CA setting in each certificate on the chain is correct. As a
1445 side effect always do the following basic checks on extensions,
1446 not just when there's an associated purpose to the check:
1448 - if there is an unhandled critical extension (unless the user
1449 has chosen to ignore this fault)
1450 - if the path length has been exceeded (if one is set at all)
1451 - that certain extensions fit the associated purpose (if one has
1455 Changes between 0.9.7d and 0.9.7e [25 Oct 2004]
1457 *) Avoid a race condition when CRLs are checked in a multi threaded
1458 environment. This would happen due to the reordering of the revoked
1459 entries during signature checking and serial number lookup. Now the
1460 encoding is cached and the serial number sort performed under a lock.
1461 Add new STACK function sk_is_sorted().
1464 *) Add Delta CRL to the extension code.
1467 *) Various fixes to s3_pkt.c so alerts are sent properly.
1468 [David Holmes <d.holmes@f5.com>]
1470 *) Reduce the chances of duplicate issuer name and serial numbers (in
1471 violation of RFC3280) using the OpenSSL certificate creation utilities.
1472 This is done by creating a random 64 bit value for the initial serial
1473 number when a serial number file is created or when a self signed
1474 certificate is created using 'openssl req -x509'. The initial serial
1475 number file is created using 'openssl x509 -next_serial' in CA.pl
1476 rather than being initialized to 1.
1479 Changes between 0.9.7c and 0.9.7d [17 Mar 2004]
1481 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
1482 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
1483 [Joe Orton, Steve Henson]
1485 *) Fix flaw in SSL/TLS handshaking when using Kerberos ciphersuites
1487 [Joe Orton, Steve Henson]
1489 *) Make it possible to have multiple active certificates with the same
1490 subject in the CA index file. This is done only if the keyword
1491 'unique_subject' is set to 'no' in the main CA section (default
1492 if 'CA_default') of the configuration file. The value is saved
1493 with the database itself in a separate index attribute file,
1494 named like the index file with '.attr' appended to the name.
1497 *) X509 verify fixes. Disable broken certificate workarounds when
1498 X509_V_FLAGS_X509_STRICT is set. Check CRL issuer has cRLSign set if
1499 keyUsage extension present. Don't accept CRLs with unhandled critical
1500 extensions: since verify currently doesn't process CRL extensions this
1501 rejects a CRL with *any* critical extensions. Add new verify error codes
1505 *) When creating an OCSP nonce use an OCTET STRING inside the extnValue.
1506 A clarification of RFC2560 will require the use of OCTET STRINGs and
1507 some implementations cannot handle the current raw format. Since OpenSSL
1508 copies and compares OCSP nonces as opaque blobs without any attempt at
1509 parsing them this should not create any compatibility issues.
1512 *) New md flag EVP_MD_CTX_FLAG_REUSE this allows md_data to be reused when
1513 calling EVP_MD_CTX_copy_ex() to avoid calling OPENSSL_malloc(). Without
1514 this HMAC (and other) operations are several times slower than OpenSSL
1518 *) Print out GeneralizedTime and UTCTime in ASN1_STRING_print_ex().
1519 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
1521 *) Use the correct content when signing type "other".
1524 Changes between 0.9.7b and 0.9.7c [30 Sep 2003]
1526 *) Fix various bugs revealed by running the NISCC test suite:
1528 Stop out of bounds reads in the ASN1 code when presented with
1529 invalid tags (CVE-2003-0543 and CVE-2003-0544).
1531 Free up ASN1_TYPE correctly if ANY type is invalid (CVE-2003-0545).
1533 If verify callback ignores invalid public key errors don't try to check
1534 certificate signature with the NULL public key.
1538 *) New -ignore_err option in ocsp application to stop the server
1539 exiting on the first error in a request.
1542 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
1543 if the server requested one: as stated in TLS 1.0 and SSL 3.0
1547 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
1548 extra data after the compression methods not only for TLS 1.0
1549 but also for SSL 3.0 (as required by the specification).
1550 [Bodo Moeller; problem pointed out by Matthias Loepfe]
1552 *) Change X509_certificate_type() to mark the key as exported/exportable
1553 when it's 512 *bits* long, not 512 bytes.
1556 *) Change AES_cbc_encrypt() so it outputs exact multiple of
1557 blocks during encryption.
1560 *) Various fixes to base64 BIO and non blocking I/O. On write
1561 flushes were not handled properly if the BIO retried. On read
1562 data was not being buffered properly and had various logic bugs.
1563 This also affects blocking I/O when the data being decoded is a
1567 *) Various S/MIME bugfixes and compatibility changes:
1568 output correct application/pkcs7 MIME type if
1569 PKCS7_NOOLDMIMETYPE is set. Tolerate some broken signatures.
1570 Output CR+LF for EOL if PKCS7_CRLFEOL is set (this makes opening
1571 of files as .eml work). Correctly handle very long lines in MIME
1575 Changes between 0.9.7a and 0.9.7b [10 Apr 2003]
1577 *) Countermeasure against the Klima-Pokorny-Rosa extension of
1578 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
1579 a protocol version number mismatch like a decryption error
1580 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
1583 *) Turn on RSA blinding by default in the default implementation
1584 to avoid a timing attack. Applications that don't want it can call
1585 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
1586 They would be ill-advised to do so in most cases.
1587 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
1589 *) Change RSA blinding code so that it works when the PRNG is not
1590 seeded (in this case, the secret RSA exponent is abused as
1591 an unpredictable seed -- if it is not unpredictable, there
1592 is no point in blinding anyway). Make RSA blinding thread-safe
1593 by remembering the creator's thread ID in rsa->blinding and
1594 having all other threads use local one-time blinding factors
1595 (this requires more computation than sharing rsa->blinding, but
1596 avoids excessive locking; and if an RSA object is not shared
1597 between threads, blinding will still be very fast).
1600 *) Fixed a typo bug that would cause ENGINE_set_default() to set an
1601 ENGINE as defaults for all supported algorithms irrespective of
1602 the 'flags' parameter. 'flags' is now honoured, so applications
1603 should make sure they are passing it correctly.
1606 *) Target "mingw" now allows native Windows code to be generated in
1607 the Cygwin environment as well as with the MinGW compiler.
1610 Changes between 0.9.7 and 0.9.7a [19 Feb 2003]
1612 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
1613 via timing by performing a MAC computation even if incorrrect
1614 block cipher padding has been found. This is a countermeasure
1615 against active attacks where the attacker has to distinguish
1616 between bad padding and a MAC verification error. (CVE-2003-0078)
1618 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
1619 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
1620 Martin Vuagnoux (EPFL, Ilion)]
1622 *) Make the no-err option work as intended. The intention with no-err
1623 is not to have the whole error stack handling routines removed from
1624 libcrypto, it's only intended to remove all the function name and
1625 reason texts, thereby removing some of the footprint that may not
1626 be interesting if those errors aren't displayed anyway.
1628 NOTE: it's still possible for any application or module to have it's
1629 own set of error texts inserted. The routines are there, just not
1630 used by default when no-err is given.
1633 *) Add support for FreeBSD on IA64.
1634 [dirk.meyer@dinoex.sub.org via Richard Levitte, resolves #454]
1636 *) Adjust DES_cbc_cksum() so it returns the same value as the MIT
1637 Kerberos function mit_des_cbc_cksum(). Before this change,
1638 the value returned by DES_cbc_cksum() was like the one from
1639 mit_des_cbc_cksum(), except the bytes were swapped.
1640 [Kevin Greaney <Kevin.Greaney@hp.com> and Richard Levitte]
1642 *) Allow an application to disable the automatic SSL chain building.
1643 Before this a rather primitive chain build was always performed in
1644 ssl3_output_cert_chain(): an application had no way to send the
1645 correct chain if the automatic operation produced an incorrect result.
1647 Now the chain builder is disabled if either:
1649 1. Extra certificates are added via SSL_CTX_add_extra_chain_cert().
1651 2. The mode flag SSL_MODE_NO_AUTO_CHAIN is set.
1653 The reasoning behind this is that an application would not want the
1654 auto chain building to take place if extra chain certificates are
1655 present and it might also want a means of sending no additional
1656 certificates (for example the chain has two certificates and the
1660 *) Add the possibility to build without the ENGINE framework.
1661 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1663 *) Under Win32 gmtime() can return NULL: check return value in
1664 OPENSSL_gmtime(). Add error code for case where gmtime() fails.
1667 *) DSA routines: under certain error conditions uninitialized BN objects
1668 could be freed. Solution: make sure initialization is performed early
1669 enough. (Reported and fix supplied by Ivan D Nestlerode <nestler@MIT.EDU>,
1670 Nils Larsch <nla@trustcenter.de> via PR#459)
1673 *) Another fix for SSLv2 session ID handling: the session ID was incorrectly
1674 checked on reconnect on the client side, therefore session resumption
1675 could still fail with a "ssl session id is different" error. This
1676 behaviour is masked when SSL_OP_ALL is used due to
1677 SSL_OP_MICROSOFT_SESS_ID_BUG being set.
1678 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1679 followup to PR #377.
1682 *) IA-32 assembler support enhancements: unified ELF targets, support
1683 for SCO/Caldera platforms, fix for Cygwin shared build.
1686 *) Add support for FreeBSD on sparc64. As a consequence, support for
1687 FreeBSD on non-x86 processors is separate from x86 processors on
1688 the config script, much like the NetBSD support.
1689 [Richard Levitte & Kris Kennaway <kris@obsecurity.org>]
1691 Changes between 0.9.6h and 0.9.7 [31 Dec 2002]
1693 [NB: OpenSSL 0.9.6i and later 0.9.6 patch levels were released after
1696 *) Fix session ID handling in SSLv2 client code: the SERVER FINISHED
1697 code (06) was taken as the first octet of the session ID and the last
1698 octet was ignored consequently. As a result SSLv2 client side session
1699 caching could not have worked due to the session ID mismatch between
1701 Behaviour observed by Crispin Flowerday <crispin@flowerday.cx> as
1705 *) Change the declaration of needed Kerberos libraries to use EX_LIBS
1706 instead of the special (and badly supported) LIBKRB5. LIBKRB5 is
1710 *) The hw_ncipher.c engine requires dynamic locks. Unfortunately, it
1711 seems that in spite of existing for more than a year, many application
1712 author have done nothing to provide the necessary callbacks, which
1713 means that this particular engine will not work properly anywhere.
1714 This is a very unfortunate situation which forces us, in the name
1715 of usability, to give the hw_ncipher.c a static lock, which is part
1717 NOTE: This is for the 0.9.7 series ONLY. This hack will never
1718 appear in 0.9.8 or later. We EXPECT application authors to have
1719 dealt properly with this when 0.9.8 is released (unless we actually
1720 make such changes in the libcrypto locking code that changes will
1721 have to be made anyway).
1724 *) In asn1_d2i_read_bio() repeatedly call BIO_read() until all content
1725 octets have been read, EOF or an error occurs. Without this change
1726 some truncated ASN1 structures will not produce an error.
1729 *) Disable Heimdal support, since it hasn't been fully implemented.
1730 Still give the possibility to force the use of Heimdal, but with
1731 warnings and a request that patches get sent to openssl-dev.
1734 *) Add the VC-CE target, introduce the WINCE sysname, and add
1735 INSTALL.WCE and appropriate conditionals to make it build.
1736 [Steven Reddie <smr@essemer.com.au> via Richard Levitte]
1738 *) Change the DLL names for Cygwin to cygcrypto-x.y.z.dll and
1739 cygssl-x.y.z.dll, where x, y and z are the major, minor and
1740 edit numbers of the version.
1741 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
1743 *) Introduce safe string copy and catenation functions
1744 (BUF_strlcpy() and BUF_strlcat()).
1745 [Ben Laurie (CHATS) and Richard Levitte]
1747 *) Avoid using fixed-size buffers for one-line DNs.
1748 [Ben Laurie (CHATS)]
1750 *) Add BUF_MEM_grow_clean() to avoid information leakage when
1751 resizing buffers containing secrets, and use where appropriate.
1752 [Ben Laurie (CHATS)]
1754 *) Avoid using fixed size buffers for configuration file location.
1755 [Ben Laurie (CHATS)]
1757 *) Avoid filename truncation for various CA files.
1758 [Ben Laurie (CHATS)]
1760 *) Use sizeof in preference to magic numbers.
1761 [Ben Laurie (CHATS)]
1763 *) Avoid filename truncation in cert requests.
1764 [Ben Laurie (CHATS)]
1766 *) Add assertions to check for (supposedly impossible) buffer
1768 [Ben Laurie (CHATS)]
1770 *) Don't cache truncated DNS entries in the local cache (this could
1771 potentially lead to a spoofing attack).
1772 [Ben Laurie (CHATS)]
1774 *) Fix various buffers to be large enough for hex/decimal
1775 representations in a platform independent manner.
1776 [Ben Laurie (CHATS)]
1778 *) Add CRYPTO_realloc_clean() to avoid information leakage when
1779 resizing buffers containing secrets, and use where appropriate.
1780 [Ben Laurie (CHATS)]
1782 *) Add BIO_indent() to avoid much slightly worrying code to do
1784 [Ben Laurie (CHATS)]
1786 *) Convert sprintf()/BIO_puts() to BIO_printf().
1787 [Ben Laurie (CHATS)]
1789 *) buffer_gets() could terminate with the buffer only half
1791 [Ben Laurie (CHATS)]
1793 *) Add assertions to prevent user-supplied crypto functions from
1794 overflowing internal buffers by having large block sizes, etc.
1795 [Ben Laurie (CHATS)]
1797 *) New OPENSSL_assert() macro (similar to assert(), but enabled
1799 [Ben Laurie (CHATS)]
1801 *) Eliminate unused copy of key in RC4.
1802 [Ben Laurie (CHATS)]
1804 *) Eliminate unused and incorrectly sized buffers for IV in pem.h.
1805 [Ben Laurie (CHATS)]
1807 *) Fix off-by-one error in EGD path.
1808 [Ben Laurie (CHATS)]
1810 *) If RANDFILE path is too long, ignore instead of truncating.
1811 [Ben Laurie (CHATS)]
1813 *) Eliminate unused and incorrectly sized X.509 structure
1815 [Ben Laurie (CHATS)]
1817 *) Eliminate unused and dangerous function knumber().
1818 [Ben Laurie (CHATS)]
1820 *) Eliminate unused and dangerous structure, KSSL_ERR.
1821 [Ben Laurie (CHATS)]
1823 *) Protect against overlong session ID context length in an encoded
1824 session object. Since these are local, this does not appear to be
1826 [Ben Laurie (CHATS)]
1828 *) Change from security patch (see 0.9.6e below) that did not affect
1829 the 0.9.6 release series:
1831 Remote buffer overflow in SSL3 protocol - an attacker could
1832 supply an oversized master key in Kerberos-enabled versions.
1834 [Ben Laurie (CHATS)]
1836 *) Change the SSL kerb5 codes to match RFC 2712.
1839 *) Make -nameopt work fully for req and add -reqopt switch.
1840 [Michael Bell <michael.bell@rz.hu-berlin.de>, Steve Henson]
1842 *) The "block size" for block ciphers in CFB and OFB mode should be 1.
1843 [Steve Henson, reported by Yngve Nysaeter Pettersen <yngve@opera.com>]
1845 *) Make sure tests can be performed even if the corresponding algorithms
1846 have been removed entirely. This was also the last step to make
1847 OpenSSL compilable with DJGPP under all reasonable conditions.
1848 [Richard Levitte, Doug Kaufman <dkaufman@rahul.net>]
1850 *) Add cipher selection rules COMPLEMENTOFALL and COMPLEMENTOFDEFAULT
1851 to allow version independent disabling of normally unselected ciphers,
1852 which may be activated as a side-effect of selecting a single cipher.
1854 (E.g., cipher list string "RSA" enables ciphersuites that are left
1855 out of "ALL" because they do not provide symmetric encryption.
1856 "RSA:!COMPLEMEMENTOFALL" avoids these unsafe ciphersuites.)
1857 [Lutz Jaenicke, Bodo Moeller]
1859 *) Add appropriate support for separate platform-dependent build
1860 directories. The recommended way to make a platform-dependent
1861 build directory is the following (tested on Linux), maybe with
1864 # Place yourself outside of the OpenSSL source tree. In
1865 # this example, the environment variable OPENSSL_SOURCE
1866 # is assumed to contain the absolute OpenSSL source directory.
1867 mkdir -p objtree/"`uname -s`-`uname -r`-`uname -m`"
1868 cd objtree/"`uname -s`-`uname -r`-`uname -m`"
1869 (cd $OPENSSL_SOURCE; find . -type f) | while read F; do
1870 mkdir -p `dirname $F`
1871 ln -s $OPENSSL_SOURCE/$F $F
1874 To be absolutely sure not to disturb the source tree, a "make clean"
1875 is a good thing. If it isn't successfull, don't worry about it,
1876 it probably means the source directory is very clean.
1879 *) Make sure any ENGINE control commands make local copies of string
1880 pointers passed to them whenever necessary. Otherwise it is possible
1881 the caller may have overwritten (or deallocated) the original string
1882 data when a later ENGINE operation tries to use the stored values.
1883 [Götz Babin-Ebell <babinebell@trustcenter.de>]
1885 *) Improve diagnostics in file reading and command-line digests.
1886 [Ben Laurie aided and abetted by Solar Designer <solar@openwall.com>]
1888 *) Add AES modes CFB and OFB to the object database. Correct an
1889 error in AES-CFB decryption.
1892 *) Remove most calls to EVP_CIPHER_CTX_cleanup() in evp_enc.c, this
1893 allows existing EVP_CIPHER_CTX structures to be reused after
1894 calling EVP_*Final(). This behaviour is used by encryption
1895 BIOs and some applications. This has the side effect that
1896 applications must explicitly clean up cipher contexts with
1897 EVP_CIPHER_CTX_cleanup() or they will leak memory.
1900 *) Check the values of dna and dnb in bn_mul_recursive before calling
1901 bn_mul_comba (a non zero value means the a or b arrays do not contain
1902 n2 elements) and fallback to bn_mul_normal if either is not zero.
1905 *) Fix escaping of non-ASCII characters when using the -subj option
1906 of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
1909 *) Make object definitions compliant to LDAP (RFC2256): SN is the short
1910 form for "surname", serialNumber has no short form.
1911 Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
1912 therefore remove "mail" short name for "internet 7".
1913 The OID for unique identifiers in X509 certificates is
1914 x500UniqueIdentifier, not uniqueIdentifier.
1915 Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
1918 *) Add an "init" command to the ENGINE config module and auto initialize
1919 ENGINEs. Without any "init" command the ENGINE will be initialized
1920 after all ctrl commands have been executed on it. If init=1 the
1921 ENGINE is initailized at that point (ctrls before that point are run
1922 on the uninitialized ENGINE and after on the initialized one). If
1923 init=0 then the ENGINE will not be iniatialized at all.
1926 *) Fix the 'app_verify_callback' interface so that the user-defined
1927 argument is actually passed to the callback: In the
1928 SSL_CTX_set_cert_verify_callback() prototype, the callback
1929 declaration has been changed from
1932 int (*cb)(X509_STORE_CTX *,void *);
1933 in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
1934 i=s->ctx->app_verify_callback(&ctx)
1935 has been changed into
1936 i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).
1938 To update applications using SSL_CTX_set_cert_verify_callback(),
1939 a dummy argument can be added to their callback functions.
1940 [D. K. Smetters <smetters@parc.xerox.com>]
1942 *) Added the '4758cca' ENGINE to support IBM 4758 cards.
1943 [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]
1945 *) Add and OPENSSL_LOAD_CONF define which will cause
1946 OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
1947 This allows older applications to transparently support certain
1948 OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
1949 Two new functions OPENSSL_add_all_algorithms_noconf() which will never
1950 load the config file and OPENSSL_add_all_algorithms_conf() which will
1951 always load it have also been added.
1954 *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
1955 Adjust NIDs and EVP layer.
1956 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
1958 *) Config modules support in openssl utility.
1960 Most commands now load modules from the config file,
1961 though in a few (such as version) this isn't done
1962 because it couldn't be used for anything.
1964 In the case of ca and req the config file used is
1965 the same as the utility itself: that is the -config
1966 command line option can be used to specify an
1970 *) Move default behaviour from OPENSSL_config(). If appname is NULL
1971 use "openssl_conf" if filename is NULL use default openssl config file.
1974 *) Add an argument to OPENSSL_config() to allow the use of an alternative
1975 config section name. Add a new flag to tolerate a missing config file
1976 and move code to CONF_modules_load_file().
1979 *) Support for crypto accelerator cards from Accelerated Encryption
1980 Processing, www.aep.ie. (Use engine 'aep')
1981 The support was copied from 0.9.6c [engine] and adapted/corrected
1982 to work with the new engine framework.
1983 [AEP Inc. and Richard Levitte]
1985 *) Support for SureWare crypto accelerator cards from Baltimore
1986 Technologies. (Use engine 'sureware')
1987 The support was copied from 0.9.6c [engine] and adapted
1988 to work with the new engine framework.
1991 *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
1992 make the newer ENGINE framework commands for the CHIL engine work.
1993 [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]
1995 *) Make it possible to produce shared libraries on ReliantUNIX.
1996 [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]
1998 *) Add the configuration target debug-linux-ppro.
1999 Make 'openssl rsa' use the general key loading routines
2000 implemented in apps.c, and make those routines able to
2001 handle the key format FORMAT_NETSCAPE and the variant
2003 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2005 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
2006 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
2008 *) Add -keyform to rsautl, and document -engine.
2009 [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]
2011 *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
2012 BIO_R_NO_SUCH_FILE error code rather than the generic
2013 ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
2016 *) Add new functions
2018 ERR_peek_last_error_line
2019 ERR_peek_last_error_line_data.
2020 These are similar to
2023 ERR_peek_error_line_data,
2024 but report on the latest error recorded rather than the first one
2025 still in the error queue.
2026 [Ben Laurie, Bodo Moeller]
2028 *) default_algorithms option in ENGINE config module. This allows things
2030 default_algorithms = ALL
2031 default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
2034 *) Prelminary ENGINE config module.
2037 *) New experimental application configuration code.
2040 *) Change the AES code to follow the same name structure as all other
2041 symmetric ciphers, and behave the same way. Move everything to
2042 the directory crypto/aes, thereby obsoleting crypto/rijndael.
2043 [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]
2045 *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
2046 [Ben Laurie and Theo de Raadt]
2048 *) Add option to output public keys in req command.
2049 [Massimiliano Pala madwolf@openca.org]
2051 *) Use wNAFs in EC_POINTs_mul() for improved efficiency
2052 (up to about 10% better than before for P-192 and P-224).
2055 *) New functions/macros
2057 SSL_CTX_set_msg_callback(ctx, cb)
2058 SSL_CTX_set_msg_callback_arg(ctx, arg)
2059 SSL_set_msg_callback(ssl, cb)
2060 SSL_set_msg_callback_arg(ssl, arg)
2062 to request calling a callback function
2064 void cb(int write_p, int version, int content_type,
2065 const void *buf, size_t len, SSL *ssl, void *arg)
2067 whenever a protocol message has been completely received
2068 (write_p == 0) or sent (write_p == 1). Here 'version' is the
2069 protocol version according to which the SSL library interprets
2070 the current protocol message (SSL2_VERSION, SSL3_VERSION, or
2071 TLS1_VERSION). 'content_type' is 0 in the case of SSL 2.0, or
2072 the content type as defined in the SSL 3.0/TLS 1.0 protocol
2073 specification (change_cipher_spec(20), alert(21), handshake(22)).
2074 'buf' and 'len' point to the actual message, 'ssl' to the
2075 SSL object, and 'arg' is the application-defined value set by
2076 SSL[_CTX]_set_msg_callback_arg().
2078 'openssl s_client' and 'openssl s_server' have new '-msg' options
2079 to enable a callback that displays all protocol messages.
2082 *) Change the shared library support so shared libraries are built as
2083 soon as the corresponding static library is finished, and thereby get
2084 openssl and the test programs linked against the shared library.
2085 This still only happens when the keyword "shard" has been given to
2086 the configuration scripts.
2088 NOTE: shared library support is still an experimental thing, and
2089 backward binary compatibility is still not guaranteed.
2090 ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]
2092 *) Add support for Subject Information Access extension.
2093 [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]
2095 *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
2096 additional bytes when new memory had to be allocated, not just
2097 when reusing an existing buffer.
2100 *) New command line and configuration option 'utf8' for the req command.
2101 This allows field values to be specified as UTF8 strings.
2104 *) Add -multi and -mr options to "openssl speed" - giving multiple parallel
2105 runs for the former and machine-readable output for the latter.
2108 *) Add '-noemailDN' option to 'openssl ca'. This prevents inclusion
2109 of the e-mail address in the DN (i.e., it will go into a certificate
2110 extension only). The new configuration file option 'email_in_dn = no'
2111 has the same effect.
2112 [Massimiliano Pala madwolf@openca.org]
2114 *) Change all functions with names starting with des_ to be starting
2115 with DES_ instead. Add wrappers that are compatible with libdes,
2116 but are named _ossl_old_des_*. Finally, add macros that map the
2117 des_* symbols to the corresponding _ossl_old_des_* if libdes
2118 compatibility is desired. If OpenSSL 0.9.6c compatibility is
2119 desired, the des_* symbols will be mapped to DES_*, with one
2122 Since we provide two compatibility mappings, the user needs to
2123 define the macro OPENSSL_DES_LIBDES_COMPATIBILITY if libdes
2124 compatibility is desired. The default (i.e., when that macro
2125 isn't defined) is OpenSSL 0.9.6c compatibility.
2127 There are also macros that enable and disable the support of old
2128 des functions altogether. Those are OPENSSL_ENABLE_OLD_DES_SUPPORT
2129 and OPENSSL_DISABLE_OLD_DES_SUPPORT. If none or both of those
2130 are defined, the default will apply: to support the old des routines.
2132 In either case, one must include openssl/des.h to get the correct
2133 definitions. Do not try to just include openssl/des_old.h, that
2136 NOTE: This is a major break of an old API into a new one. Software
2137 authors are encouraged to switch to the DES_ style functions. Some
2138 time in the future, des_old.h and the libdes compatibility functions
2139 will be disable (i.e. OPENSSL_DISABLE_OLD_DES_SUPPORT will be the
2140 default), and then completely removed.
2143 *) Test for certificates which contain unsupported critical extensions.
2144 If such a certificate is found during a verify operation it is
2145 rejected by default: this behaviour can be overridden by either
2146 handling the new error X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION or
2147 by setting the verify flag X509_V_FLAG_IGNORE_CRITICAL. A new function
2148 X509_supported_extension() has also been added which returns 1 if a
2149 particular extension is supported.
2152 *) Modify the behaviour of EVP cipher functions in similar way to digests
2153 to retain compatibility with existing code.
2156 *) Modify the behaviour of EVP_DigestInit() and EVP_DigestFinal() to retain
2157 compatibility with existing code. In particular the 'ctx' parameter does
2158 not have to be to be initialized before the call to EVP_DigestInit() and
2159 it is tidied up after a call to EVP_DigestFinal(). New function
2160 EVP_DigestFinal_ex() which does not tidy up the ctx. Similarly function
2161 EVP_MD_CTX_copy() changed to not require the destination to be
2162 initialized valid and new function EVP_MD_CTX_copy_ex() added which
2163 requires the destination to be valid.
2165 Modify all the OpenSSL digest calls to use EVP_DigestInit_ex(),
2166 EVP_DigestFinal_ex() and EVP_MD_CTX_copy_ex().
2169 *) Change ssl3_get_message (ssl/s3_both.c) and the functions using it
2170 so that complete 'Handshake' protocol structures are kept in memory
2171 instead of overwriting 'msg_type' and 'length' with 'body' data.
2174 *) Add an implementation of SSL_add_dir_cert_subjects_to_stack for Win32.
2175 [Massimo Santin via Richard Levitte]
2177 *) Major restructuring to the underlying ENGINE code. This includes
2178 reduction of linker bloat, separation of pure "ENGINE" manipulation
2179 (initialisation, etc) from functionality dealing with implementations
2180 of specific crypto iterfaces. This change also introduces integrated
2181 support for symmetric ciphers and digest implementations - so ENGINEs
2182 can now accelerate these by providing EVP_CIPHER and EVP_MD
2183 implementations of their own. This is detailed in crypto/engine/README
2184 as it couldn't be adequately described here. However, there are a few
2185 API changes worth noting - some RSA, DSA, DH, and RAND functions that
2186 were changed in the original introduction of ENGINE code have now
2187 reverted back - the hooking from this code to ENGINE is now a good
2188 deal more passive and at run-time, operations deal directly with
2189 RSA_METHODs, DSA_METHODs (etc) as they did before, rather than
2190 dereferencing through an ENGINE pointer any more. Also, the ENGINE
2191 functions dealing with BN_MOD_EXP[_CRT] handlers have been removed -
2192 they were not being used by the framework as there is no concept of a
2193 BIGNUM_METHOD and they could not be generalised to the new
2194 'ENGINE_TABLE' mechanism that underlies the new code. Similarly,
2195 ENGINE_cpy() has been removed as it cannot be consistently defined in
2199 *) Change ASN1_GENERALIZEDTIME_check() to allow fractional seconds.
2202 *) Change mkdef.pl to sort symbols that get the same entry number,
2203 and make sure the automatically generated functions ERR_load_*
2204 become part of libeay.num as well.
2207 *) New function SSL_renegotiate_pending(). This returns true once
2208 renegotiation has been requested (either SSL_renegotiate() call
2209 or HelloRequest/ClientHello receveived from the peer) and becomes
2210 false once a handshake has been completed.
2211 (For servers, SSL_renegotiate() followed by SSL_do_handshake()
2212 sends a HelloRequest, but does not ensure that a handshake takes
2213 place. SSL_renegotiate_pending() is useful for checking if the
2214 client has followed the request.)
2217 *) New SSL option SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION.
2218 By default, clients may request session resumption even during
2219 renegotiation (if session ID contexts permit); with this option,
2220 session resumption is possible only in the first handshake.
2222 SSL_OP_ALL is now 0x00000FFFL instead of 0x000FFFFFL. This makes
2223 more bits available for options that should not be part of
2224 SSL_OP_ALL (such as SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION).
2227 *) Add some demos for certificate and certificate request creation.
2230 *) Make maximum certificate chain size accepted from the peer application
2231 settable (SSL*_get/set_max_cert_list()), as proposed by
2232 "Douglas E. Engert" <deengert@anl.gov>.
2235 *) Add support for shared libraries for Unixware-7
2236 (Boyd Lynn Gerber <gerberb@zenez.com>).
2239 *) Add a "destroy" handler to ENGINEs that allows structural cleanup to
2240 be done prior to destruction. Use this to unload error strings from
2241 ENGINEs that load their own error strings. NB: This adds two new API
2242 functions to "get" and "set" this destroy handler in an ENGINE.
2245 *) Alter all existing ENGINE implementations (except "openssl" and
2246 "openbsd") to dynamically instantiate their own error strings. This
2247 makes them more flexible to be built both as statically-linked ENGINEs
2248 and self-contained shared-libraries loadable via the "dynamic" ENGINE.
2249 Also, add stub code to each that makes building them as self-contained
2250 shared-libraries easier (see README.ENGINE).
2253 *) Add a "dynamic" ENGINE that provides a mechanism for binding ENGINE
2254 implementations into applications that are completely implemented in
2255 self-contained shared-libraries. The "dynamic" ENGINE exposes control
2256 commands that can be used to configure what shared-library to load and
2257 to control aspects of the way it is handled. Also, made an update to
2258 the README.ENGINE file that brings its information up-to-date and
2259 provides some information and instructions on the "dynamic" ENGINE
2260 (ie. how to use it, how to build "dynamic"-loadable ENGINEs, etc).
2263 *) Make it possible to unload ranges of ERR strings with a new
2264 "ERR_unload_strings" function.
2267 *) Add a copy() function to EVP_MD.
2270 *) Make EVP_MD routines take a context pointer instead of just the
2271 md_data void pointer.
2274 *) Add flags to EVP_MD and EVP_MD_CTX. EVP_MD_FLAG_ONESHOT indicates
2275 that the digest can only process a single chunk of data
2276 (typically because it is provided by a piece of
2277 hardware). EVP_MD_CTX_FLAG_ONESHOT indicates that the application
2278 is only going to provide a single chunk of data, and hence the
2279 framework needn't accumulate the data for oneshot drivers.
2282 *) As with "ERR", make it possible to replace the underlying "ex_data"
2283 functions. This change also alters the storage and management of global
2284 ex_data state - it's now all inside ex_data.c and all "class" code (eg.
2285 RSA, BIO, SSL_CTX, etc) no longer stores its own STACKS and per-class
2286 index counters. The API functions that use this state have been changed
2287 to take a "class_index" rather than pointers to the class's local STACK
2288 and counter, and there is now an API function to dynamically create new
2289 classes. This centralisation allows us to (a) plug a lot of the
2290 thread-safety problems that existed, and (b) makes it possible to clean
2291 up all allocated state using "CRYPTO_cleanup_all_ex_data()". W.r.t. (b)
2292 such data would previously have always leaked in application code and
2293 workarounds were in place to make the memory debugging turn a blind eye
2294 to it. Application code that doesn't use this new function will still
2295 leak as before, but their memory debugging output will announce it now
2296 rather than letting it slide.
2298 Besides the addition of CRYPTO_cleanup_all_ex_data(), another API change
2299 induced by the "ex_data" overhaul is that X509_STORE_CTX_init() now
2300 has a return value to indicate success or failure.
2303 *) Make it possible to replace the underlying "ERR" functions such that the
2304 global state (2 LHASH tables and 2 locks) is only used by the "default"
2305 implementation. This change also adds two functions to "get" and "set"
2306 the implementation prior to it being automatically set the first time
2307 any other ERR function takes place. Ie. an application can call "get",
2308 pass the return value to a module it has just loaded, and that module
2309 can call its own "set" function using that value. This means the
2310 module's "ERR" operations will use (and modify) the error state in the
2311 application and not in its own statically linked copy of OpenSSL code.
2314 *) Give DH, DSA, and RSA types their own "**_up_ref()" function to increment
2315 reference counts. This performs normal REF_PRINT/REF_CHECK macros on
2316 the operation, and provides a more encapsulated way for external code
2317 (crypto/evp/ and ssl/) to do this. Also changed the evp and ssl code
2318 to use these functions rather than manually incrementing the counts.
2320 Also rename "DSO_up()" function to more descriptive "DSO_up_ref()".
2323 *) Add EVP test program.
2326 *) Add symmetric cipher support to ENGINE. Expect the API to change!
2329 *) New CRL functions: X509_CRL_set_version(), X509_CRL_set_issuer_name()
2330 X509_CRL_set_lastUpdate(), X509_CRL_set_nextUpdate(), X509_CRL_sort(),
2331 X509_REVOKED_set_serialNumber(), and X509_REVOKED_set_revocationDate().
2332 These allow a CRL to be built without having to access X509_CRL fields
2333 directly. Modify 'ca' application to use new functions.
2336 *) Move SSL_OP_TLS_ROLLBACK_BUG out of the SSL_OP_ALL list of recommended
2337 bug workarounds. Rollback attack detection is a security feature.
2338 The problem will only arise on OpenSSL servers when TLSv1 is not
2339 available (sslv3_server_method() or SSL_OP_NO_TLSv1).
2340 Software authors not wanting to support TLSv1 will have special reasons
2341 for their choice and can explicitly enable this option.
2342 [Bodo Moeller, Lutz Jaenicke]
2344 *) Rationalise EVP so it can be extended: don't include a union of
2345 cipher/digest structures, add init/cleanup functions for EVP_MD_CTX
2346 (similar to those existing for EVP_CIPHER_CTX).
2351 EVP_MD_CTX_init(&md); /* new function call */
2352 EVP_DigestInit(&md, EVP_sha1());
2353 EVP_DigestUpdate(&md, in, len);
2354 EVP_DigestFinal(&md, out, NULL);
2355 EVP_MD_CTX_cleanup(&md); /* new function call */
2359 *) Make DES key schedule conform to the usual scheme, as well as
2360 correcting its structure. This means that calls to DES functions
2361 now have to pass a pointer to a des_key_schedule instead of a
2362 plain des_key_schedule (which was actually always a pointer
2365 des_key_schedule ks;
2367 des_set_key_checked(..., &ks);
2368 des_ncbc_encrypt(..., &ks, ...);
2370 (Note that a later change renames 'des_...' into 'DES_...'.)
2373 *) Initial reduction of linker bloat: the use of some functions, such as
2374 PEM causes large amounts of unused functions to be linked in due to
2375 poor organisation. For example pem_all.c contains every PEM function
2376 which has a knock on effect of linking in large amounts of (unused)
2377 ASN1 code. Grouping together similar functions and splitting unrelated
2378 functions prevents this.
2381 *) Cleanup of EVP macros.
2384 *) Change historical references to {NID,SN,LN}_des_ede and ede3 to add the
2385 correct _ecb suffix.
2388 *) Add initial OCSP responder support to ocsp application. The
2389 revocation information is handled using the text based index
2390 use by the ca application. The responder can either handle
2391 requests generated internally, supplied in files (for example
2392 via a CGI script) or using an internal minimal server.
2395 *) Add configuration choices to get zlib compression for TLS.
2398 *) Changes to Kerberos SSL for RFC 2712 compliance:
2399 1. Implemented real KerberosWrapper, instead of just using
2400 KRB5 AP_REQ message. [Thanks to Simon Wilkinson <sxw@sxw.org.uk>]
2401 2. Implemented optional authenticator field of KerberosWrapper.
2403 Added openssl-style ASN.1 macros for Kerberos ticket, ap_req,
2404 and authenticator structs; see crypto/krb5/.
2406 Generalized Kerberos calls to support multiple Kerberos libraries.
2407 [Vern Staats <staatsvr@asc.hpc.mil>,
2408 Jeffrey Altman <jaltman@columbia.edu>
2409 via Richard Levitte]
2411 *) Cause 'openssl speed' to use fully hard-coded DSA keys as it
2412 already does with RSA. testdsa.h now has 'priv_key/pub_key'
2413 values for each of the key sizes rather than having just
2414 parameters (and 'speed' generating keys each time).
2417 *) Speed up EVP routines.
2420 type 8 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
2421 des-cbc 4408.85k 5560.51k 5778.46k 5862.20k 5825.16k
2422 des-cbc 4389.55k 5571.17k 5792.23k 5846.91k 5832.11k
2423 des-cbc 4394.32k 5575.92k 5807.44k 5848.37k 5841.30k
2425 des-cbc 3482.66k 5069.49k 5496.39k 5614.16k 5639.28k
2426 des-cbc 3480.74k 5068.76k 5510.34k 5609.87k 5635.52k
2427 des-cbc 3483.72k 5067.62k 5504.60k 5708.01k 5724.80k
2430 des-cbc 4660.16k 5650.19k 5807.19k 5827.13k 5783.32k
2432 des-cbc 3624.96k 5258.21k 5530.91k 5624.30k 5628.26k
2435 *) Added the OS2-EMX target.
2436 ["Brian Havard" <brianh@kheldar.apana.org.au> and Richard Levitte]
2438 *) Rewrite apps to use NCONF routines instead of the old CONF. New functions
2439 to support NCONF routines in extension code. New function CONF_set_nconf()
2440 to allow functions which take an NCONF to also handle the old LHASH
2441 structure: this means that the old CONF compatible routines can be
2442 retained (in particular wrt extensions) without having to duplicate the
2443 code. New function X509V3_add_ext_nconf_sk to add extensions to a stack.
2446 *) Enhance the general user interface with mechanisms for inner control
2447 and with possibilities to have yes/no kind of prompts.
2450 *) Change all calls to low level digest routines in the library and
2451 applications to use EVP. Add missing calls to HMAC_cleanup() and
2452 don't assume HMAC_CTX can be copied using memcpy().
2453 [Verdon Walker <VWalker@novell.com>, Steve Henson]
2455 *) Add the possibility to control engines through control names but with
2456 arbitrary arguments instead of just a string.
2457 Change the key loaders to take a UI_METHOD instead of a callback
2458 function pointer. NOTE: this breaks binary compatibility with earlier
2459 versions of OpenSSL [engine].
2460 Adapt the nCipher code for these new conditions and add a card insertion
2464 *) Enhance the general user interface with mechanisms to better support
2465 dialog box interfaces, application-defined prompts, the possibility
2466 to use defaults (for example default passwords from somewhere else)
2467 and interrupts/cancellations.
2470 *) Tidy up PKCS#12 attribute handling. Add support for the CSP name
2471 attribute in PKCS#12 files, add new -CSP option to pkcs12 utility.
2474 *) Fix a memory leak in 'sk_dup()' in the case reallocation fails. (Also
2475 tidy up some unnecessarily weird code in 'sk_new()').
2476 [Geoff, reported by Diego Tartara <dtartara@novamens.com>]
2478 *) Change the key loading routines for ENGINEs to use the same kind
2479 callback (pem_password_cb) as all other routines that need this
2483 *) Increase ENTROPY_NEEDED to 32 bytes, as Rijndael can operate with
2484 256 bit (=32 byte) keys. Of course seeding with more entropy bytes
2485 than this minimum value is recommended.
2488 *) New random seeder for OpenVMS, using the system process statistics
2489 that are easily reachable.
2492 *) Windows apparently can't transparently handle global
2493 variables defined in DLLs. Initialisations such as:
2495 const ASN1_ITEM *it = &ASN1_INTEGER_it;
2497 wont compile. This is used by the any applications that need to
2498 declare their own ASN1 modules. This was fixed by adding the option
2499 EXPORT_VAR_AS_FN to all Win32 platforms, although this isn't strictly
2500 needed for static libraries under Win32.
2503 *) New functions X509_PURPOSE_set() and X509_TRUST_set() to handle
2504 setting of purpose and trust fields. New X509_STORE trust and
2505 purpose functions and tidy up setting in other SSL functions.
2508 *) Add copies of X509_STORE_CTX fields and callbacks to X509_STORE
2509 structure. These are inherited by X509_STORE_CTX when it is
2510 initialised. This allows various defaults to be set in the
2511 X509_STORE structure (such as flags for CRL checking and custom
2512 purpose or trust settings) for functions which only use X509_STORE_CTX
2513 internally such as S/MIME.
2515 Modify X509_STORE_CTX_purpose_inherit() so it only sets purposes and
2516 trust settings if they are not set in X509_STORE. This allows X509_STORE
2517 purposes and trust (in S/MIME for example) to override any set by default.
2519 Add command line options for CRL checking to smime, s_client and s_server
2523 *) Initial CRL based revocation checking. If the CRL checking flag(s)
2524 are set then the CRL is looked up in the X509_STORE structure and
2525 its validity and signature checked, then if the certificate is found
2526 in the CRL the verify fails with a revoked error.
2528 Various new CRL related callbacks added to X509_STORE_CTX structure.
2530 Command line options added to 'verify' application to support this.
2532 This needs some additional work, such as being able to handle multiple
2533 CRLs with different times, extension based lookup (rather than just
2534 by subject name) and ultimately more complete V2 CRL extension
2538 *) Add a general user interface API (crypto/ui/). This is designed
2539 to replace things like des_read_password and friends (backward
2540 compatibility functions using this new API are provided).
2541 The purpose is to remove prompting functions from the DES code
2542 section as well as provide for prompting through dialog boxes in
2543 a window system and the like.
2546 *) Add "ex_data" support to ENGINE so implementations can add state at a
2547 per-structure level rather than having to store it globally.
2550 *) Make it possible for ENGINE structures to be copied when retrieved by
2551 ENGINE_by_id() if the ENGINE specifies a new flag: ENGINE_FLAGS_BY_ID_COPY.
2552 This causes the "original" ENGINE structure to act like a template,
2553 analogous to the RSA vs. RSA_METHOD type of separation. Because of this
2554 operational state can be localised to each ENGINE structure, despite the
2555 fact they all share the same "methods". New ENGINE structures returned in
2556 this case have no functional references and the return value is the single
2557 structural reference. This matches the single structural reference returned
2558 by ENGINE_by_id() normally, when it is incremented on the pre-existing
2562 *) Fix ASN1 decoder when decoding type ANY and V_ASN1_OTHER: since this
2563 needs to match any other type at all we need to manually clear the
2567 *) Changes to the "openssl engine" utility to include;
2568 - verbosity levels ('-v', '-vv', and '-vvv') that provide information
2569 about an ENGINE's available control commands.
2570 - executing control commands from command line arguments using the
2571 '-pre' and '-post' switches. '-post' is only used if '-t' is
2572 specified and the ENGINE is successfully initialised. The syntax for
2573 the individual commands are colon-separated, for example;
2574 openssl engine chil -pre FORK_CHECK:0 -pre SO_PATH:/lib/test.so
2577 *) New dynamic control command support for ENGINEs. ENGINEs can now
2578 declare their own commands (numbers), names (strings), descriptions,
2579 and input types for run-time discovery by calling applications. A
2580 subset of these commands are implicitly classed as "executable"
2581 depending on their input type, and only these can be invoked through
2582 the new string-based API function ENGINE_ctrl_cmd_string(). (Eg. this
2583 can be based on user input, config files, etc). The distinction is
2584 that "executable" commands cannot return anything other than a boolean
2585 result and can only support numeric or string input, whereas some
2586 discoverable commands may only be for direct use through
2587 ENGINE_ctrl(), eg. supporting the exchange of binary data, function
2588 pointers, or other custom uses. The "executable" commands are to
2589 support parameterisations of ENGINE behaviour that can be
2590 unambiguously defined by ENGINEs and used consistently across any
2591 OpenSSL-based application. Commands have been added to all the
2592 existing hardware-supporting ENGINEs, noticeably "SO_PATH" to allow
2593 control over shared-library paths without source code alterations.
2596 *) Changed all ENGINE implementations to dynamically allocate their
2597 ENGINEs rather than declaring them statically. Apart from this being
2598 necessary with the removal of the ENGINE_FLAGS_MALLOCED distinction,
2599 this also allows the implementations to compile without using the
2600 internal engine_int.h header.
2603 *) Minor adjustment to "rand" code. RAND_get_rand_method() now returns a
2604 'const' value. Any code that should be able to modify a RAND_METHOD
2605 should already have non-const pointers to it (ie. they should only
2606 modify their own ones).
2609 *) Made a variety of little tweaks to the ENGINE code.
2610 - "atalla" and "ubsec" string definitions were moved from header files
2611 to C code. "nuron" string definitions were placed in variables
2612 rather than hard-coded - allowing parameterisation of these values
2613 later on via ctrl() commands.
2614 - Removed unused "#if 0"'d code.
2615 - Fixed engine list iteration code so it uses ENGINE_free() to release
2616 structural references.
2617 - Constified the RAND_METHOD element of ENGINE structures.
2618 - Constified various get/set functions as appropriate and added
2619 missing functions (including a catch-all ENGINE_cpy that duplicates
2620 all ENGINE values onto a new ENGINE except reference counts/state).
2621 - Removed NULL parameter checks in get/set functions. Setting a method
2622 or function to NULL is a way of cancelling out a previously set
2623 value. Passing a NULL ENGINE parameter is just plain stupid anyway
2624 and doesn't justify the extra error symbols and code.
2625 - Deprecate the ENGINE_FLAGS_MALLOCED define and move the area for
2626 flags from engine_int.h to engine.h.
2627 - Changed prototypes for ENGINE handler functions (init(), finish(),
2628 ctrl(), key-load functions, etc) to take an (ENGINE*) parameter.
2631 *) Implement binary inversion algorithm for BN_mod_inverse in addition
2632 to the algorithm using long division. The binary algorithm can be
2633 used only if the modulus is odd. On 32-bit systems, it is faster
2634 only for relatively small moduli (roughly 20-30% for 128-bit moduli,
2635 roughly 5-15% for 256-bit moduli), so we use it only for moduli
2636 up to 450 bits. In 64-bit environments, the binary algorithm
2637 appears to be advantageous for much longer moduli; here we use it
2638 for moduli up to 2048 bits.
2641 *) Rewrite CHOICE field setting in ASN1_item_ex_d2i(). The old code
2642 could not support the combine flag in choice fields.
2645 *) Add a 'copy_extensions' option to the 'ca' utility. This copies
2646 extensions from a certificate request to the certificate.
2649 *) Allow multiple 'certopt' and 'nameopt' options to be separated
2650 by commas. Add 'namopt' and 'certopt' options to the 'ca' config
2651 file: this allows the display of the certificate about to be
2652 signed to be customised, to allow certain fields to be included
2653 or excluded and extension details. The old system didn't display
2654 multicharacter strings properly, omitted fields not in the policy
2655 and couldn't display additional details such as extensions.
2658 *) Function EC_POINTs_mul for multiple scalar multiplication
2659 of an arbitrary number of elliptic curve points
2660 \sum scalars[i]*points[i],
2661 optionally including the generator defined for the EC_GROUP:
2662 scalar*generator + \sum scalars[i]*points[i].
2664 EC_POINT_mul is a simple wrapper function for the typical case
2665 that the point list has just one item (besides the optional
2669 *) First EC_METHODs for curves over GF(p):
2671 EC_GFp_simple_method() uses the basic BN_mod_mul and BN_mod_sqr
2672 operations and provides various method functions that can also
2673 operate with faster implementations of modular arithmetic.
2675 EC_GFp_mont_method() reuses most functions that are part of
2676 EC_GFp_simple_method, but uses Montgomery arithmetic.
2678 [Bodo Moeller; point addition and point doubling
2679 implementation directly derived from source code provided by
2680 Lenka Fibikova <fibikova@exp-math.uni-essen.de>]
2682 *) Framework for elliptic curves (crypto/ec/ec.h, crypto/ec/ec_lcl.h,
2683 crypto/ec/ec_lib.c):
2685 Curves are EC_GROUP objects (with an optional group generator)
2686 based on EC_METHODs that are built into the library.
2688 Points are EC_POINT objects based on EC_GROUP objects.
2690 Most of the framework would be able to handle curves over arbitrary
2691 finite fields, but as there are no obvious types for fields other
2692 than GF(p), some functions are limited to that for now.
2695 *) Add the -HTTP option to s_server. It is similar to -WWW, but requires
2696 that the file contains a complete HTTP response.
2699 *) Add the ec directory to mkdef.pl and mkfiles.pl. In mkdef.pl
2700 change the def and num file printf format specifier from "%-40sXXX"
2701 to "%-39s XXX". The latter will always guarantee a space after the
2702 field while the former will cause them to run together if the field
2703 is 40 of more characters long.
2706 *) Constify the cipher and digest 'method' functions and structures
2707 and modify related functions to take constant EVP_MD and EVP_CIPHER
2711 *) Hide BN_CTX structure details in bn_lcl.h instead of publishing them
2712 in <openssl/bn.h>. Also further increase BN_CTX_NUM to 32.
2715 *) Modify EVP_Digest*() routines so they now return values. Although the
2716 internal software routines can never fail additional hardware versions
2720 *) Clean up crypto/err/err.h and change some error codes to avoid conflicts:
2722 Previously ERR_R_FATAL was too small and coincided with ERR_LIB_PKCS7
2723 (= ERR_R_PKCS7_LIB); it is now 64 instead of 32.
2726 ERR_R_NESTED_ASN1_ERROR
2728 ERR_R_MISSING_ASN1_EOS
2729 were 4 .. 9, conflicting with
2730 ERR_LIB_RSA (= ERR_R_RSA_LIB)
2732 ERR_LIB_PEM (= ERR_R_PEM_LIB).
2733 They are now 58 .. 63 (i.e., just below ERR_R_FATAL).
2735 Add new error code 'ERR_R_INTERNAL_ERROR'.
2738 *) Don't overuse locks in crypto/err/err.c: For data retrieval, CRYPTO_r_lock
2742 *) New option '-subj arg' for 'openssl req' and 'openssl ca'. This
2743 sets the subject name for a new request or supersedes the
2744 subject name in a given request. Formats that can be parsed are
2745 'CN=Some Name, OU=myOU, C=IT'
2747 'CN=Some Name/OU=myOU/C=IT'.
2749 Add options '-batch' and '-verbose' to 'openssl req'.
2750 [Massimiliano Pala <madwolf@hackmasters.net>]
2752 *) Introduce the possibility to access global variables through
2753 functions on platform were that's the best way to handle exporting
2754 global variables in shared libraries. To enable this functionality,
2755 one must configure with "EXPORT_VAR_AS_FN" or defined the C macro
2756 "OPENSSL_EXPORT_VAR_AS_FUNCTION" in crypto/opensslconf.h (the latter
2757 is normally done by Configure or something similar).
2759 To implement a global variable, use the macro OPENSSL_IMPLEMENT_GLOBAL
2760 in the source file (foo.c) like this:
2762 OPENSSL_IMPLEMENT_GLOBAL(int,foo)=1;
2763 OPENSSL_IMPLEMENT_GLOBAL(double,bar);
2765 To declare a global variable, use the macros OPENSSL_DECLARE_GLOBAL
2766 and OPENSSL_GLOBAL_REF in the header file (foo.h) like this:
2768 OPENSSL_DECLARE_GLOBAL(int,foo);
2769 #define foo OPENSSL_GLOBAL_REF(foo)
2770 OPENSSL_DECLARE_GLOBAL(double,bar);
2771 #define bar OPENSSL_GLOBAL_REF(bar)
2773 The #defines are very important, and therefore so is including the
2774 header file everywhere where the defined globals are used.
2776 The macro OPENSSL_EXPORT_VAR_AS_FUNCTION also affects the definition
2777 of ASN.1 items, but that structure is a bit different.
2779 The largest change is in util/mkdef.pl which has been enhanced with
2780 better and easier to understand logic to choose which symbols should
2781 go into the Windows .def files as well as a number of fixes and code
2782 cleanup (among others, algorithm keywords are now sorted
2783 lexicographically to avoid constant rewrites).
2786 *) In BN_div() keep a copy of the sign of 'num' before writing the
2787 result to 'rm' because if rm==num the value will be overwritten
2788 and produce the wrong result if 'num' is negative: this caused
2789 problems with BN_mod() and BN_nnmod().
2792 *) Function OCSP_request_verify(). This checks the signature on an
2793 OCSP request and verifies the signer certificate. The signer
2794 certificate is just checked for a generic purpose and OCSP request
2798 *) Add OCSP_check_validity() function to check the validity of OCSP
2799 responses. OCSP responses are prepared in real time and may only
2800 be a few seconds old. Simply checking that the current time lies
2801 between thisUpdate and nextUpdate max reject otherwise valid responses
2802 caused by either OCSP responder or client clock inaccuracy. Instead
2803 we allow thisUpdate and nextUpdate to fall within a certain period of
2804 the current time. The age of the response can also optionally be
2805 checked. Two new options -validity_period and -status_age added to
2809 *) If signature or public key algorithm is unrecognized print out its
2810 OID rather that just UNKNOWN.
2813 *) Change OCSP_cert_to_id() to tolerate a NULL subject certificate and
2814 OCSP_cert_id_new() a NULL serialNumber. This allows a partial certificate
2815 ID to be generated from the issuer certificate alone which can then be
2816 passed to OCSP_id_issuer_cmp().
2819 *) New compilation option ASN1_ITEM_FUNCTIONS. This causes the new
2820 ASN1 modules to export functions returning ASN1_ITEM pointers
2821 instead of the ASN1_ITEM structures themselves. This adds several
2822 new macros which allow the underlying ASN1 function/structure to
2823 be accessed transparently. As a result code should not use ASN1_ITEM
2824 references directly (such as &X509_it) but instead use the relevant
2825 macros (such as ASN1_ITEM_rptr(X509)). This option is to allow
2826 use of the new ASN1 code on platforms where exporting structures
2827 is problematical (for example in shared libraries) but exporting
2828 functions returning pointers to structures is not.
2831 *) Add support for overriding the generation of SSL/TLS session IDs.
2832 These callbacks can be registered either in an SSL_CTX or per SSL.
2833 The purpose of this is to allow applications to control, if they wish,
2834 the arbitrary values chosen for use as session IDs, particularly as it
2835 can be useful for session caching in multiple-server environments. A
2836 command-line switch for testing this (and any client code that wishes
2837 to use such a feature) has been added to "s_server".
2838 [Geoff Thorpe, Lutz Jaenicke]
2840 *) Modify mkdef.pl to recognise and parse preprocessor conditionals
2841 of the form '#if defined(...) || defined(...) || ...' and
2842 '#if !defined(...) && !defined(...) && ...'. This also avoids
2843 the growing number of special cases it was previously handling.
2846 *) Make all configuration macros available for application by making
2847 sure they are available in opensslconf.h, by giving them names starting
2848 with "OPENSSL_" to avoid conflicts with other packages and by making
2849 sure e_os2.h will cover all platform-specific cases together with
2851 Additionally, it is now possible to define configuration/platform-
2852 specific names (called "system identities"). In the C code, these
2853 are prefixed with "OPENSSL_SYSNAME_". e_os2.h will create another
2854 macro with the name beginning with "OPENSSL_SYS_", which is determined
2855 from "OPENSSL_SYSNAME_*" or compiler-specific macros depending on
2859 *) New option -set_serial to 'req' and 'x509' this allows the serial
2860 number to use to be specified on the command line. Previously self
2861 signed certificates were hard coded with serial number 0 and the
2862 CA options of 'x509' had to use a serial number in a file which was
2866 *) New options to 'ca' utility to support V2 CRL entry extensions.
2867 Currently CRL reason, invalidity date and hold instruction are
2868 supported. Add new CRL extensions to V3 code and some new objects.
2871 *) New function EVP_CIPHER_CTX_set_padding() this is used to
2872 disable standard block padding (aka PKCS#5 padding) in the EVP
2873 API, which was previously mandatory. This means that the data is
2874 not padded in any way and so the total length much be a multiple
2875 of the block size, otherwise an error occurs.
2878 *) Initial (incomplete) OCSP SSL support.
2881 *) New function OCSP_parse_url(). This splits up a URL into its host,
2882 port and path components: primarily to parse OCSP URLs. New -url
2883 option to ocsp utility.
2886 *) New nonce behavior. The return value of OCSP_check_nonce() now
2887 reflects the various checks performed. Applications can decide
2888 whether to tolerate certain situations such as an absent nonce
2889 in a response when one was present in a request: the ocsp application
2890 just prints out a warning. New function OCSP_add1_basic_nonce()
2891 this is to allow responders to include a nonce in a response even if
2892 the request is nonce-less.
2895 *) Disable stdin buffering in load_cert (apps/apps.c) so that no certs are
2896 skipped when using openssl x509 multiple times on a single input file,
2897 e.g. "(openssl x509 -out cert1; openssl x509 -out cert2) <certs".
2900 *) Make ASN1_UTCTIME_set_string() and ASN1_GENERALIZEDTIME_set_string()
2901 set string type: to handle setting ASN1_TIME structures. Fix ca
2902 utility to correctly initialize revocation date of CRLs.
2905 *) New option SSL_OP_CIPHER_SERVER_PREFERENCE allows the server to override
2906 the clients preferred ciphersuites and rather use its own preferences.
2907 Should help to work around M$ SGC (Server Gated Cryptography) bug in
2908 Internet Explorer by ensuring unchanged hash method during stepup.
2909 (Also replaces the broken/deactivated SSL_OP_NON_EXPORT_FIRST option.)
2912 *) Make mkdef.pl recognise all DECLARE_ASN1 macros, change rijndael
2913 to aes and add a new 'exist' option to print out symbols that don't
2917 *) Additional options to ocsp utility to allow flags to be set and
2918 additional certificates supplied.
2921 *) Add the option -VAfile to 'openssl ocsp', so the user can give the
2922 OCSP client a number of certificate to only verify the response
2926 *) Update Rijndael code to version 3.0 and change EVP AES ciphers to
2927 handle the new API. Currently only ECB, CBC modes supported. Add new
2930 Add TLS AES ciphersuites as described in RFC3268, "Advanced
2931 Encryption Standard (AES) Ciphersuites for Transport Layer
2932 Security (TLS)". (In beta versions of OpenSSL 0.9.7, these were
2933 not enabled by default and were not part of the "ALL" ciphersuite
2934 alias because they were not yet official; they could be
2935 explicitly requested by specifying the "AESdraft" ciphersuite
2936 group alias. In the final release of OpenSSL 0.9.7, the group
2937 alias is called "AES" and is part of "ALL".)
2938 [Ben Laurie, Steve Henson, Bodo Moeller]
2940 *) New function OCSP_copy_nonce() to copy nonce value (if present) from
2941 request to response.
2944 *) Functions for OCSP responders. OCSP_request_onereq_count(),
2945 OCSP_request_onereq_get0(), OCSP_onereq_get0_id() and OCSP_id_get0_info()
2946 extract information from a certificate request. OCSP_response_create()
2947 creates a response and optionally adds a basic response structure.
2948 OCSP_basic_add1_status() adds a complete single response to a basic
2949 response and returns the OCSP_SINGLERESP structure just added (to allow
2950 extensions to be included for example). OCSP_basic_add1_cert() adds a
2951 certificate to a basic response and OCSP_basic_sign() signs a basic
2952 response with various flags. New helper functions ASN1_TIME_check()
2953 (checks validity of ASN1_TIME structure) and ASN1_TIME_to_generalizedtime()
2954 (converts ASN1_TIME to GeneralizedTime).
2957 *) Various new functions. EVP_Digest() combines EVP_Digest{Init,Update,Final}()
2958 in a single operation. X509_get0_pubkey_bitstr() extracts the public_key
2959 structure from a certificate. X509_pubkey_digest() digests the public_key
2960 contents: this is used in various key identifiers.
2963 *) Make sk_sort() tolerate a NULL argument.
2964 [Steve Henson reported by Massimiliano Pala <madwolf@comune.modena.it>]
2966 *) New OCSP verify flag OCSP_TRUSTOTHER. When set the "other" certificates
2967 passed by the function are trusted implicitly. If any of them signed the
2968 response then it is assumed to be valid and is not verified.
2971 *) In PKCS7_set_type() initialise content_type in PKCS7_ENC_CONTENT
2972 to data. This was previously part of the PKCS7 ASN1 code. This
2973 was causing problems with OpenSSL created PKCS#12 and PKCS#7 structures.
2974 [Steve Henson, reported by Kenneth R. Robinette
2975 <support@securenetterm.com>]
2977 *) Add CRYPTO_push_info() and CRYPTO_pop_info() calls to new ASN1
2978 routines: without these tracing memory leaks is very painful.
2979 Fix leaks in PKCS12 and PKCS7 routines.
2982 *) Make X509_time_adj() cope with the new behaviour of ASN1_TIME_new().
2983 Previously it initialised the 'type' argument to V_ASN1_UTCTIME which
2984 effectively meant GeneralizedTime would never be used. Now it
2985 is initialised to -1 but X509_time_adj() now has to check the value
2986 and use ASN1_TIME_set() if the value is not V_ASN1_UTCTIME or
2987 V_ASN1_GENERALIZEDTIME, without this it always uses GeneralizedTime.
2988 [Steve Henson, reported by Kenneth R. Robinette
2989 <support@securenetterm.com>]
2991 *) Fixes to BN_to_ASN1_INTEGER when bn is zero. This would previously
2992 result in a zero length in the ASN1_INTEGER structure which was
2993 not consistent with the structure when d2i_ASN1_INTEGER() was used
2994 and would cause ASN1_INTEGER_cmp() to fail. Enhance s2i_ASN1_INTEGER()
2995 to cope with hex and negative integers. Fix bug in i2a_ASN1_INTEGER()
2996 where it did not print out a minus for negative ASN1_INTEGER.
2999 *) Add summary printout to ocsp utility. The various functions which
3000 convert status values to strings have been renamed to:
3001 OCSP_response_status_str(), OCSP_cert_status_str() and
3002 OCSP_crl_reason_str() and are no longer static. New options
3003 to verify nonce values and to disable verification. OCSP response
3004 printout format cleaned up.
3007 *) Add additional OCSP certificate checks. These are those specified
3008 in RFC2560. This consists of two separate checks: the CA of the
3009 certificate being checked must either be the OCSP signer certificate
3010 or the issuer of the OCSP signer certificate. In the latter case the
3011 OCSP signer certificate must contain the OCSP signing extended key
3012 usage. This check is performed by attempting to match the OCSP
3013 signer or the OCSP signer CA to the issuerNameHash and issuerKeyHash
3014 in the OCSP_CERTID structures of the response.
3017 *) Initial OCSP certificate verification added to OCSP_basic_verify()
3018 and related routines. This uses the standard OpenSSL certificate
3019 verify routines to perform initial checks (just CA validity) and
3020 to obtain the certificate chain. Then additional checks will be
3021 performed on the chain. Currently the root CA is checked to see
3022 if it is explicitly trusted for OCSP signing. This is used to set
3023 a root CA as a global signing root: that is any certificate that
3024 chains to that CA is an acceptable OCSP signing certificate.
3027 *) New '-extfile ...' option to 'openssl ca' for reading X.509v3
3028 extensions from a separate configuration file.
3029 As when reading extensions from the main configuration file,
3030 the '-extensions ...' option may be used for specifying the
3032 [Massimiliano Pala <madwolf@comune.modena.it>]
3034 *) New OCSP utility. Allows OCSP requests to be generated or
3035 read. The request can be sent to a responder and the output
3036 parsed, outputed or printed in text form. Not complete yet:
3037 still needs to check the OCSP response validity.
3040 *) New subcommands for 'openssl ca':
3041 'openssl ca -status <serial>' prints the status of the cert with
3042 the given serial number (according to the index file).
3043 'openssl ca -updatedb' updates the expiry status of certificates
3045 [Massimiliano Pala <madwolf@comune.modena.it>]
3047 *) New '-newreq-nodes' command option to CA.pl. This is like
3048 '-newreq', but calls 'openssl req' with the '-nodes' option
3049 so that the resulting key is not encrypted.
3050 [Damien Miller <djm@mindrot.org>]
3052 *) New configuration for the GNU Hurd.
3053 [Jonathan Bartlett <johnnyb@wolfram.com> via Richard Levitte]
3055 *) Initial code to implement OCSP basic response verify. This
3056 is currently incomplete. Currently just finds the signer's
3057 certificate and verifies the signature on the response.
3060 *) New SSLeay_version code SSLEAY_DIR to determine the compiled-in
3061 value of OPENSSLDIR. This is available via the new '-d' option
3062 to 'openssl version', and is also included in 'openssl version -a'.
3065 *) Allowing defining memory allocation callbacks that will be given
3066 file name and line number information in additional arguments
3067 (a const char* and an int). The basic functionality remains, as
3068 well as the original possibility to just replace malloc(),
3069 realloc() and free() by functions that do not know about these
3070 additional arguments. To register and find out the current
3071 settings for extended allocation functions, the following
3072 functions are provided:
3074 CRYPTO_set_mem_ex_functions
3075 CRYPTO_set_locked_mem_ex_functions
3076 CRYPTO_get_mem_ex_functions
3077 CRYPTO_get_locked_mem_ex_functions
3079 These work the same way as CRYPTO_set_mem_functions and friends.
3080 CRYPTO_get_[locked_]mem_functions now writes 0 where such an
3081 extended allocation function is enabled.
3082 Similarly, CRYPTO_get_[locked_]mem_ex_functions writes 0 where
3083 a conventional allocation function is enabled.
3084 [Richard Levitte, Bodo Moeller]
3086 *) Finish off removing the remaining LHASH function pointer casts.
3087 There should no longer be any prototype-casting required when using
3088 the LHASH abstraction, and any casts that remain are "bugs". See
3089 the callback types and macros at the head of lhash.h for details
3090 (and "OBJ_cleanup" in crypto/objects/obj_dat.c as an example).
3093 *) Add automatic query of EGD sockets in RAND_poll() for the unix variant.
3094 If /dev/[u]random devices are not available or do not return enough
3095 entropy, EGD style sockets (served by EGD or PRNGD) will automatically
3097 The locations /var/run/egd-pool, /dev/egd-pool, /etc/egd-pool, and
3098 /etc/entropy will be queried once each in this sequence, quering stops
3099 when enough entropy was collected without querying more sockets.
3102 *) Change the Unix RAND_poll() variant to be able to poll several
3103 random devices, as specified by DEVRANDOM, until a sufficient amount
3104 of data has been collected. We spend at most 10 ms on each file
3105 (select timeout) and read in non-blocking mode. DEVRANDOM now
3106 defaults to the list "/dev/urandom", "/dev/random", "/dev/srandom"
3107 (previously it was just the string "/dev/urandom"), so on typical
3108 platforms the 10 ms delay will never occur.
3109 Also separate out the Unix variant to its own file, rand_unix.c.
3110 For VMS, there's a currently-empty rand_vms.c.
3113 *) Move OCSP client related routines to ocsp_cl.c. These
3114 provide utility functions which an application needing
3115 to issue a request to an OCSP responder and analyse the
3116 response will typically need: as opposed to those which an
3117 OCSP responder itself would need which will be added later.
3119 OCSP_request_sign() signs an OCSP request with an API similar
3120 to PKCS7_sign(). OCSP_response_status() returns status of OCSP
3121 response. OCSP_response_get1_basic() extracts basic response
3122 from response. OCSP_resp_find_status(): finds and extracts status
3123 information from an OCSP_CERTID structure (which will be created
3124 when the request structure is built). These are built from lower
3125 level functions which work on OCSP_SINGLERESP structures but
3126 wont normally be used unless the application wishes to examine
3127 extensions in the OCSP response for example.
3129 Replace nonce routines with a pair of functions.
3130 OCSP_request_add1_nonce() adds a nonce value and optionally
3131 generates a random value. OCSP_check_nonce() checks the
3132 validity of the nonce in an OCSP response.
3135 *) Change function OCSP_request_add() to OCSP_request_add0_id().
3136 This doesn't copy the supplied OCSP_CERTID and avoids the
3137 need to free up the newly created id. Change return type
3138 to OCSP_ONEREQ to return the internal OCSP_ONEREQ structure.
3139 This can then be used to add extensions to the request.
3140 Deleted OCSP_request_new(), since most of its functionality
3141 is now in OCSP_REQUEST_new() (and the case insensitive name
3142 clash) apart from the ability to set the request name which
3143 will be added elsewhere.
3146 *) Update OCSP API. Remove obsolete extensions argument from
3147 various functions. Extensions are now handled using the new
3148 OCSP extension code. New simple OCSP HTTP function which
3149 can be used to send requests and parse the response.
3152 *) Fix the PKCS#7 (S/MIME) code to work with new ASN1. Two new
3153 ASN1_ITEM structures help with sign and verify. PKCS7_ATTR_SIGN
3154 uses the special reorder version of SET OF to sort the attributes
3155 and reorder them to match the encoded order. This resolves a long
3156 standing problem: a verify on a PKCS7 structure just after signing
3157 it used to fail because the attribute order did not match the
3158 encoded order. PKCS7_ATTR_VERIFY does not reorder the attributes:
3159 it uses the received order. This is necessary to tolerate some broken
3160 software that does not order SET OF. This is handled by encoding
3161 as a SEQUENCE OF but using implicit tagging (with UNIVERSAL class)
3162 to produce the required SET OF.
3165 *) Have mk1mf.pl generate the macros OPENSSL_BUILD_SHLIBCRYPTO and
3166 OPENSSL_BUILD_SHLIBSSL and use them appropriately in the header
3167 files to get correct declarations of the ASN.1 item variables.
3170 *) Rewrite of PKCS#12 code to use new ASN1 functionality. Replace many
3171 PKCS#12 macros with real functions. Fix two unrelated ASN1 bugs:
3172 asn1_check_tlen() would sometimes attempt to use 'ctx' when it was
3173 NULL and ASN1_TYPE was not dereferenced properly in asn1_ex_c2i().
3174 New ASN1 macro: DECLARE_ASN1_ITEM() which just declares the relevant
3175 ASN1_ITEM and no wrapper functions.
3178 *) New functions or ASN1_item_d2i_fp() and ASN1_item_d2i_bio(). These
3179 replace the old function pointer based I/O routines. Change most of
3180 the *_d2i_bio() and *_d2i_fp() functions to use these.
3183 *) Enhance mkdef.pl to be more accepting about spacing in C preprocessor
3184 lines, recognice more "algorithms" that can be deselected, and make
3185 it complain about algorithm deselection that isn't recognised.
3188 *) New ASN1 functions to handle dup, sign, verify, digest, pack and
3189 unpack operations in terms of ASN1_ITEM. Modify existing wrappers
3190 to use new functions. Add NO_ASN1_OLD which can be set to remove
3191 some old style ASN1 functions: this can be used to determine if old
3192 code will still work when these eventually go away.
3195 *) New extension functions for OCSP structures, these follow the
3196 same conventions as certificates and CRLs.
3199 *) New function X509V3_add1_i2d(). This automatically encodes and
3200 adds an extension. Its behaviour can be customised with various
3201 flags to append, replace or delete. Various wrappers added for
3202 certifcates and CRLs.
3205 *) Fix to avoid calling the underlying ASN1 print routine when
3206 an extension cannot be parsed. Correct a typo in the
3207 OCSP_SERVICELOC extension. Tidy up print OCSP format.
3210 *) Make mkdef.pl parse some of the ASN1 macros and add apropriate
3211 entries for variables.
3214 *) Add functionality to apps/openssl.c for detecting locking
3215 problems: As the program is single-threaded, all we have
3216 to do is register a locking callback using an array for
3217 storing which locks are currently held by the program.
3220 *) Use a lock around the call to CRYPTO_get_ex_new_index() in
3221 SSL_get_ex_data_X509_STORE_idx(), which is used in
3222 ssl_verify_cert_chain() and thus can be called at any time
3223 during TLS/SSL handshakes so that thread-safety is essential.
3224 Unfortunately, the ex_data design is not at all suited
3225 for multi-threaded use, so it probably should be abolished.
3228 *) Added Broadcom "ubsec" ENGINE to OpenSSL.
3229 [Broadcom, tweaked and integrated by Geoff Thorpe]
3231 *) Move common extension printing code to new function
3232 X509V3_print_extensions(). Reorganise OCSP print routines and
3233 implement some needed OCSP ASN1 functions. Add OCSP extensions.
3236 *) New function X509_signature_print() to remove duplication in some
3240 *) Add a special meaning when SET OF and SEQUENCE OF flags are both
3241 set (this was treated exactly the same as SET OF previously). This
3242 is used to reorder the STACK representing the structure to match the
3243 encoding. This will be used to get round a problem where a PKCS7
3244 structure which was signed could not be verified because the STACK
3245 order did not reflect the encoded order.
3248 *) Reimplement the OCSP ASN1 module using the new code.
3251 *) Update the X509V3 code to permit the use of an ASN1_ITEM structure
3252 for its ASN1 operations. The old style function pointers still exist
3253 for now but they will eventually go away.
3256 *) Merge in replacement ASN1 code from the ASN1 branch. This almost
3257 completely replaces the old ASN1 functionality with a table driven
3258 encoder and decoder which interprets an ASN1_ITEM structure describing
3259 the ASN1 module. Compatibility with the existing ASN1 API (i2d,d2i) is
3260 largely maintained. Almost all of the old asn1_mac.h macro based ASN1
3261 has also been converted to the new form.
3264 *) Change BN_mod_exp_recp so that negative moduli are tolerated
3265 (the sign is ignored). Similarly, ignore the sign in BN_MONT_CTX_set
3266 so that BN_mod_exp_mont and BN_mod_exp_mont_word work
3267 for negative moduli.
3270 *) Fix BN_uadd and BN_usub: Always return non-negative results instead
3271 of not touching the result's sign bit.
3274 *) BN_div bugfix: If the result is 0, the sign (res->neg) must not be
3278 *) Changed the LHASH code to use prototypes for callbacks, and created
3279 macros to declare and implement thin (optionally static) functions
3280 that provide type-safety and avoid function pointer casting for the
3281 type-specific callbacks.
3284 *) Added Kerberos Cipher Suites to be used with TLS, as written in
3286 [Veers Staats <staatsvr@asc.hpc.mil>,
3287 Jeffrey Altman <jaltman@columbia.edu>, via Richard Levitte]
3289 *) Reformat the FAQ so the different questions and answers can be divided
3290 in sections depending on the subject.
3293 *) Have the zlib compression code load ZLIB.DLL dynamically under
3297 *) New function BN_mod_sqrt for computing square roots modulo a prime
3298 (using the probabilistic Tonelli-Shanks algorithm unless
3299 p == 3 (mod 4) or p == 5 (mod 8), which are cases that can
3300 be handled deterministically).
3301 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3303 *) Make BN_mod_inverse faster by explicitly handling small quotients
3304 in the Euclid loop. (Speed gain about 20% for small moduli [256 or
3305 512 bits], about 30% for larger ones [1024 or 2048 bits].)
3308 *) New function BN_kronecker.
3311 *) Fix BN_gcd so that it works on negative inputs; the result is
3312 positive unless both parameters are zero.
3313 Previously something reasonably close to an infinite loop was
3314 possible because numbers could be growing instead of shrinking
3315 in the implementation of Euclid's algorithm.
3318 *) Fix BN_is_word() and BN_is_one() macros to take into account the
3319 sign of the number in question.
3321 Fix BN_is_word(a,w) to work correctly for w == 0.
3323 The old BN_is_word(a,w) macro is now called BN_abs_is_word(a,w)
3324 because its test if the absolute value of 'a' equals 'w'.
3325 Note that BN_abs_is_word does *not* handle w == 0 reliably;
3326 it exists mostly for use in the implementations of BN_is_zero(),
3327 BN_is_one(), and BN_is_word().
3330 *) New function BN_swap.
3333 *) Use BN_nnmod instead of BN_mod in crypto/bn/bn_exp.c so that
3334 the exponentiation functions are more likely to produce reasonable
3335 results on negative inputs.
3338 *) Change BN_mod_mul so that the result is always non-negative.
3339 Previously, it could be negative if one of the factors was negative;
3340 I don't think anyone really wanted that behaviour.
3343 *) Move BN_mod_... functions into new file crypto/bn/bn_mod.c
3344 (except for exponentiation, which stays in crypto/bn/bn_exp.c,
3345 and BN_mod_mul_reciprocal, which stays in crypto/bn/bn_recp.c)
3346 and add new functions:
3355 BN_mod_lshift1_quick
3359 These functions always generate non-negative results.
3361 BN_nnmod otherwise is like BN_mod (if BN_mod computes a remainder r
3362 such that |m| < r < 0, BN_nnmod will output rem + |m| instead).
3364 BN_mod_XXX_quick(r, a, [b,] m) generates the same result as
3365 BN_mod_XXX(r, a, [b,] m, ctx), but requires that a [and b]
3366 be reduced modulo m.
3367 [Lenka Fibikova <fibikova@exp-math.uni-essen.de>, Bodo Moeller]
3370 The following entry accidentily appeared in the CHANGES file
3371 distributed with OpenSSL 0.9.7. The modifications described in
3372 it do *not* apply to OpenSSL 0.9.7.
3374 *) Remove a few calls to bn_wexpand() in BN_sqr() (the one in there
3375 was actually never needed) and in BN_mul(). The removal in BN_mul()
3376 required a small change in bn_mul_part_recursive() and the addition
3377 of the functions bn_cmp_part_words(), bn_sub_part_words() and
3378 bn_add_part_words(), which do the same thing as bn_cmp_words(),
3379 bn_sub_words() and bn_add_words() except they take arrays with
3384 *) In 'openssl passwd', verify passwords read from the terminal
3385 unless the '-salt' option is used (which usually means that
3386 verification would just waste user's time since the resulting
3387 hash is going to be compared with some given password hash)
3388 or the new '-noverify' option is used.
3390 This is an incompatible change, but it does not affect
3391 non-interactive use of 'openssl passwd' (passwords on the command
3392 line, '-stdin' option, '-in ...' option) and thus should not
3396 *) Remove all references to RSAref, since there's no more need for it.
3399 *) Make DSO load along a path given through an environment variable
3400 (SHLIB_PATH) with shl_load().
3403 *) Constify the ENGINE code as a result of BIGNUM constification.
3404 Also constify the RSA code and most things related to it. In a
3405 few places, most notable in the depth of the ASN.1 code, ugly
3406 casts back to non-const were required (to be solved at a later
3410 *) Make it so the openssl application has all engines loaded by default.
3413 *) Constify the BIGNUM routines a little more.
3416 *) Add the following functions:
3418 ENGINE_load_cswift()
3420 ENGINE_load_atalla()
3422 ENGINE_load_builtin_engines()
3424 That way, an application can itself choose if external engines that
3425 are built-in in OpenSSL shall ever be used or not. The benefit is
3426 that applications won't have to be linked with libdl or other dso
3427 libraries unless it's really needed.
3429 Changed 'openssl engine' to load all engines on demand.
3430 Changed the engine header files to avoid the duplication of some
3431 declarations (they differed!).
3434 *) 'openssl engine' can now list capabilities.
3437 *) Better error reporting in 'openssl engine'.
3440 *) Never call load_dh_param(NULL) in s_server.
3443 *) Add engine application. It can currently list engines by name and
3444 identity, and test if they are actually available.
3447 *) Improve RPM specification file by forcing symbolic linking and making
3448 sure the installed documentation is also owned by root.root.
3449 [Damien Miller <djm@mindrot.org>]
3451 *) Give the OpenSSL applications more possibilities to make use of
3452 keys (public as well as private) handled by engines.
3455 *) Add OCSP code that comes from CertCo.
3458 *) Add VMS support for the Rijndael code.
3461 *) Added untested support for Nuron crypto accelerator.
3464 *) Add support for external cryptographic devices. This code was
3465 previously distributed separately as the "engine" branch.
3466 [Geoff Thorpe, Richard Levitte]
3468 *) Rework the filename-translation in the DSO code. It is now possible to
3469 have far greater control over how a "name" is turned into a filename
3470 depending on the operating environment and any oddities about the
3471 different shared library filenames on each system.
3474 *) Support threads on FreeBSD-elf in Configure.
3477 *) Fix for SHA1 assembly problem with MASM: it produces
3478 warnings about corrupt line number information when assembling
3479 with debugging information. This is caused by the overlapping
3481 [Bernd Matthes <mainbug@celocom.de>, Steve Henson]
3484 NCONF_get_number() has no error checking at all. As a replacement,
3485 NCONF_get_number_e() is defined (_e for "error checking") and is
3486 promoted strongly. The old NCONF_get_number is kept around for
3487 binary backward compatibility.
3488 Make it possible for methods to load from something other than a BIO,
3489 by providing a function pointer that is given a name instead of a BIO.
3490 For example, this could be used to load configuration data from an
3494 *) Fix for non blocking accept BIOs. Added new I/O special reason
3495 BIO_RR_ACCEPT to cover this case. Previously use of accept BIOs
3496 with non blocking I/O was not possible because no retry code was
3497 implemented. Also added new SSL code SSL_WANT_ACCEPT to cover
3501 *) Added the beginnings of Rijndael support.
3504 *) Fix for bug in DirectoryString mask setting. Add support for
3505 X509_NAME_print_ex() in 'req' and X509_print_ex() function
3506 to allow certificate printing to more controllable, additional
3507 'certopt' option to 'x509' to allow new printing options to be
3511 *) Clean old EAY MD5 hack from e_os.h.
3514 Changes between 0.9.6l and 0.9.6m [17 Mar 2004]
3516 *) Fix null-pointer assignment in do_change_cipher_spec() revealed
3517 by using the Codenomicon TLS Test Tool (CVE-2004-0079)
3518 [Joe Orton, Steve Henson]
3520 Changes between 0.9.6k and 0.9.6l [04 Nov 2003]
3522 *) Fix additional bug revealed by the NISCC test suite:
3524 Stop bug triggering large recursion when presented with
3525 certain ASN.1 tags (CVE-2003-0851)
3528 Changes between 0.9.6j and 0.9.6k [30 Sep 2003]
3530 *) Fix various bugs revealed by running the NISCC test suite:
3532 Stop out of bounds reads in the ASN1 code when presented with
3533 invalid tags (CVE-2003-0543 and CVE-2003-0544).
3535 If verify callback ignores invalid public key errors don't try to check
3536 certificate signature with the NULL public key.
3540 *) In ssl3_accept() (ssl/s3_srvr.c) only accept a client certificate
3541 if the server requested one: as stated in TLS 1.0 and SSL 3.0
3545 *) In ssl3_get_client_hello() (ssl/s3_srvr.c), tolerate additional
3546 extra data after the compression methods not only for TLS 1.0
3547 but also for SSL 3.0 (as required by the specification).
3548 [Bodo Moeller; problem pointed out by Matthias Loepfe]
3550 *) Change X509_certificate_type() to mark the key as exported/exportable
3551 when it's 512 *bits* long, not 512 bytes.
3554 Changes between 0.9.6i and 0.9.6j [10 Apr 2003]
3556 *) Countermeasure against the Klima-Pokorny-Rosa extension of
3557 Bleichbacher's attack on PKCS #1 v1.5 padding: treat
3558 a protocol version number mismatch like a decryption error
3559 in ssl3_get_client_key_exchange (ssl/s3_srvr.c).
3562 *) Turn on RSA blinding by default in the default implementation
3563 to avoid a timing attack. Applications that don't want it can call
3564 RSA_blinding_off() or use the new flag RSA_FLAG_NO_BLINDING.
3565 They would be ill-advised to do so in most cases.
3566 [Ben Laurie, Steve Henson, Geoff Thorpe, Bodo Moeller]
3568 *) Change RSA blinding code so that it works when the PRNG is not
3569 seeded (in this case, the secret RSA exponent is abused as
3570 an unpredictable seed -- if it is not unpredictable, there
3571 is no point in blinding anyway). Make RSA blinding thread-safe
3572 by remembering the creator's thread ID in rsa->blinding and
3573 having all other threads use local one-time blinding factors
3574 (this requires more computation than sharing rsa->blinding, but
3575 avoids excessive locking; and if an RSA object is not shared
3576 between threads, blinding will still be very fast).
3579 Changes between 0.9.6h and 0.9.6i [19 Feb 2003]
3581 *) In ssl3_get_record (ssl/s3_pkt.c), minimize information leaked
3582 via timing by performing a MAC computation even if incorrrect
3583 block cipher padding has been found. This is a countermeasure
3584 against active attacks where the attacker has to distinguish
3585 between bad padding and a MAC verification error. (CVE-2003-0078)
3587 [Bodo Moeller; problem pointed out by Brice Canvel (EPFL),
3588 Alain Hiltgen (UBS), Serge Vaudenay (EPFL), and
3589 Martin Vuagnoux (EPFL, Ilion)]
3591 Changes between 0.9.6g and 0.9.6h [5 Dec 2002]
3593 *) New function OPENSSL_cleanse(), which is used to cleanse a section of
3594 memory from it's contents. This is done with a counter that will
3595 place alternating values in each byte. This can be used to solve
3596 two issues: 1) the removal of calls to memset() by highly optimizing
3597 compilers, and 2) cleansing with other values than 0, since those can
3598 be read through on certain media, for example a swap space on disk.
3601 *) Bugfix: client side session caching did not work with external caching,
3602 because the session->cipher setting was not restored when reloading
3603 from the external cache. This problem was masked, when
3604 SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG (part of SSL_OP_ALL) was set.
3605 (Found by Steve Haslam <steve@araqnid.ddts.net>.)
3608 *) Fix client_certificate (ssl/s2_clnt.c): The permissible total
3609 length of the REQUEST-CERTIFICATE message is 18 .. 34, not 17 .. 33.
3610 [Zeev Lieber <zeev-l@yahoo.com>]
3612 *) Undo an undocumented change introduced in 0.9.6e which caused
3613 repeated calls to OpenSSL_add_all_ciphers() and
3614 OpenSSL_add_all_digests() to be ignored, even after calling
3618 *) Change the default configuration reader to deal with last line not
3619 being properly terminated.
3622 *) Change X509_NAME_cmp() so it applies the special rules on handling
3623 DN values that are of type PrintableString, as well as RDNs of type
3624 emailAddress where the value has the type ia5String.
3625 [stefank@valicert.com via Richard Levitte]
3627 *) Add a SSL_SESS_CACHE_NO_INTERNAL_STORE flag to take over half
3628 the job SSL_SESS_CACHE_NO_INTERNAL_LOOKUP was inconsistently
3629 doing, define a new flag (SSL_SESS_CACHE_NO_INTERNAL) to be
3630 the bitwise-OR of the two for use by the majority of applications
3631 wanting this behaviour, and update the docs. The documented
3632 behaviour and actual behaviour were inconsistent and had been
3633 changing anyway, so this is more a bug-fix than a behavioural
3635 [Geoff Thorpe, diagnosed by Nadav Har'El]
3637 *) Don't impose a 16-byte length minimum on session IDs in ssl/s3_clnt.c
3638 (the SSL 3.0 and TLS 1.0 specifications allow any length up to 32 bytes).
3641 *) Fix initialization code race conditions in
3642 SSLv23_method(), SSLv23_client_method(), SSLv23_server_method(),
3643 SSLv2_method(), SSLv2_client_method(), SSLv2_server_method(),
3644 SSLv3_method(), SSLv3_client_method(), SSLv3_server_method(),
3645 TLSv1_method(), TLSv1_client_method(), TLSv1_server_method(),
3646 ssl2_get_cipher_by_char(),
3647 ssl3_get_cipher_by_char().
3648 [Patrick McCormick <patrick@tellme.com>, Bodo Moeller]
3650 *) Reorder cleanup sequence in SSL_CTX_free(): only remove the ex_data after
3651 the cached sessions are flushed, as the remove_cb() might use ex_data
3652 contents. Bug found by Sam Varshavchik <mrsam@courier-mta.com>
3653 (see [openssl.org #212]).
3654 [Geoff Thorpe, Lutz Jaenicke]
3656 *) Fix typo in OBJ_txt2obj which incorrectly passed the content
3657 length, instead of the encoding length to d2i_ASN1_OBJECT.
3660 Changes between 0.9.6f and 0.9.6g [9 Aug 2002]
3662 *) [In 0.9.6g-engine release:]
3663 Fix crypto/engine/vendor_defns/cswift.h for WIN32 (use '_stdcall').
3664 [Lynn Gazis <lgazis@rainbow.com>]
3666 Changes between 0.9.6e and 0.9.6f [8 Aug 2002]
3668 *) Fix ASN1 checks. Check for overflow by comparing with LONG_MAX
3669 and get fix the header length calculation.
3670 [Florian Weimer <Weimer@CERT.Uni-Stuttgart.DE>,
3671 Alon Kantor <alonk@checkpoint.com> (and others),
3674 *) Use proper error handling instead of 'assertions' in buffer
3675 overflow checks added in 0.9.6e. This prevents DoS (the
3676 assertions could call abort()).
3677 [Arne Ansper <arne@ats.cyber.ee>, Bodo Moeller]
3679 Changes between 0.9.6d and 0.9.6e [30 Jul 2002]
3681 *) Add various sanity checks to asn1_get_length() to reject
3682 the ASN1 length bytes if they exceed sizeof(long), will appear
3683 negative or the content length exceeds the length of the
3685 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3687 *) Fix cipher selection routines: ciphers without encryption had no flags
3688 for the cipher strength set and where therefore not handled correctly
3689 by the selection routines (PR #130).
3692 *) Fix EVP_dsa_sha macro.
3696 SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
3697 for disabling the SSL 3.0/TLS 1.0 CBC vulnerability countermeasure
3698 that was added in OpenSSL 0.9.6d.
3700 As the countermeasure turned out to be incompatible with some
3701 broken SSL implementations, the new option is part of SSL_OP_ALL.
3702 SSL_OP_ALL is usually employed when compatibility with weird SSL
3703 implementations is desired (e.g. '-bugs' option to 's_client' and
3704 's_server'), so the new option is automatically set in many
3708 *) Changes in security patch:
3710 Changes marked "(CHATS)" were sponsored by the Defense Advanced
3711 Research Projects Agency (DARPA) and Air Force Research Laboratory,
3712 Air Force Materiel Command, USAF, under agreement number
3715 *) Add various sanity checks to asn1_get_length() to reject
3716 the ASN1 length bytes if they exceed sizeof(long), will appear
3717 negative or the content length exceeds the length of the
3718 supplied buffer. (CVE-2002-0659)
3719 [Steve Henson, Adi Stav <stav@mercury.co.il>, James Yonan <jim@ntlp.com>]
3721 *) Assertions for various potential buffer overflows, not known to
3723 [Ben Laurie (CHATS)]
3725 *) Various temporary buffers to hold ASCII versions of integers were
3726 too small for 64 bit platforms. (CVE-2002-0655)
3727 [Matthew Byng-Maddick <mbm@aldigital.co.uk> and Ben Laurie (CHATS)>
3729 *) Remote buffer overflow in SSL3 protocol - an attacker could
3730 supply an oversized session ID to a client. (CVE-2002-0656)
3731 [Ben Laurie (CHATS)]
3733 *) Remote buffer overflow in SSL2 protocol - an attacker could
3734 supply an oversized client master key. (CVE-2002-0656)
3735 [Ben Laurie (CHATS)]
3737 Changes between 0.9.6c and 0.9.6d [9 May 2002]
3739 *) Fix crypto/asn1/a_sign.c so that 'parameters' is omitted (not
3740 encoded as NULL) with id-dsa-with-sha1.
3741 [Nils Larsch <nla@trustcenter.de>; problem pointed out by Bodo Moeller]
3743 *) Check various X509_...() return values in apps/req.c.
3744 [Nils Larsch <nla@trustcenter.de>]
3746 *) Fix BASE64 decode (EVP_DecodeUpdate) for data with CR/LF ended lines:
3747 an end-of-file condition would erronously be flagged, when the CRLF
3748 was just at the end of a processed block. The bug was discovered when
3749 processing data through a buffering memory BIO handing the data to a
3750 BASE64-decoding BIO. Bug fund and patch submitted by Pavel Tsekov
3751 <ptsekov@syntrex.com> and Nedelcho Stanev.
3754 *) Implement a countermeasure against a vulnerability recently found
3755 in CBC ciphersuites in SSL 3.0/TLS 1.0: Send an empty fragment
3756 before application data chunks to avoid the use of known IVs
3757 with data potentially chosen by the attacker.
3760 *) Fix length checks in ssl3_get_client_hello().
3763 *) TLS/SSL library bugfix: use s->s3->in_read_app_data differently
3764 to prevent ssl3_read_internal() from incorrectly assuming that
3765 ssl3_read_bytes() found application data while handshake
3766 processing was enabled when in fact s->s3->in_read_app_data was
3767 merely automatically cleared during the initial handshake.
3768 [Bodo Moeller; problem pointed out by Arne Ansper <arne@ats.cyber.ee>]
3770 *) Fix object definitions for Private and Enterprise: they were not
3771 recognized in their shortname (=lowercase) representation. Extend
3772 obj_dat.pl to issue an error when using undefined keywords instead
3773 of silently ignoring the problem (Svenning Sorensen
3774 <sss@sss.dnsalias.net>).
3777 *) Fix DH_generate_parameters() so that it works for 'non-standard'
3778 generators, i.e. generators other than 2 and 5. (Previously, the
3779 code did not properly initialise the 'add' and 'rem' values to
3780 BN_generate_prime().)
3782 In the new general case, we do not insist that 'generator' is
3783 actually a primitive root: This requirement is rather pointless;
3784 a generator of the order-q subgroup is just as good, if not
3788 *) Map new X509 verification errors to alerts. Discovered and submitted by
3789 Tom Wu <tom@arcot.com>.
3792 *) Fix ssl3_pending() (ssl/s3_lib.c) to prevent SSL_pending() from
3793 returning non-zero before the data has been completely received
3794 when using non-blocking I/O.
3795 [Bodo Moeller; problem pointed out by John Hughes]
3797 *) Some of the ciphers missed the strength entry (SSL_LOW etc).
3798 [Ben Laurie, Lutz Jaenicke]
3800 *) Fix bug in SSL_clear(): bad sessions were not removed (found by
3801 Yoram Zahavi <YoramZ@gilian.com>).
3804 *) Add information about CygWin 1.3 and on, and preserve proper
3805 configuration for the versions before that.
3806 [Corinna Vinschen <vinschen@redhat.com> and Richard Levitte]
3808 *) Make removal from session cache (SSL_CTX_remove_session()) more robust:
3809 check whether we deal with a copy of a session and do not delete from
3810 the cache in this case. Problem reported by "Izhar Shoshani Levi"
3811 <izhar@checkpoint.com>.
3814 *) Do not store session data into the internal session cache, if it
3815 is never intended to be looked up (SSL_SESS_CACHE_NO_INTERNAL_LOOKUP
3816 flag is set). Proposed by Aslam <aslam@funk.com>.
3819 *) Have ASN1_BIT_STRING_set_bit() really clear a bit when the requested
3823 *) [In 0.9.6d-engine release:]
3824 Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
3825 [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]
3827 *) Add the configuration target linux-s390x.
3828 [Neale Ferguson <Neale.Ferguson@SoftwareAG-USA.com> via Richard Levitte]
3830 *) The earlier bugfix for the SSL3_ST_SW_HELLO_REQ_C case of
3831 ssl3_accept (ssl/s3_srvr.c) incorrectly used a local flag
3832 variable as an indication that a ClientHello message has been
3833 received. As the flag value will be lost between multiple
3834 invocations of ssl3_accept when using non-blocking I/O, the
3835 function may not be aware that a handshake has actually taken
3836 place, thus preventing a new session from being added to the
3839 To avoid this problem, we now set s->new_session to 2 instead of
3840 using a local variable.
3841 [Lutz Jaenicke, Bodo Moeller]
3843 *) Bugfix: Return -1 from ssl3_get_server_done (ssl3/s3_clnt.c)
3844 if the SSL_R_LENGTH_MISMATCH error is detected.
3845 [Geoff Thorpe, Bodo Moeller]
3847 *) New 'shared_ldflag' column in Configure platform table.
3850 *) Fix EVP_CIPHER_mode macro.
3851 ["Dan S. Camper" <dan@bti.net>]
3853 *) Fix ssl3_read_bytes (ssl/s3_pkt.c): To ignore messages of unknown
3854 type, we must throw them away by setting rr->length to 0.
3855 [D P Chang <dpc@qualys.com>]
3857 Changes between 0.9.6b and 0.9.6c [21 dec 2001]
3859 *) Fix BN_rand_range bug pointed out by Dominikus Scherkl
3860 <Dominikus.Scherkl@biodata.com>. (The previous implementation
3861 worked incorrectly for those cases where range = 10..._2 and
3862 3*range is two bits longer than range.)
3865 *) Only add signing time to PKCS7 structures if it is not already
3869 *) Fix crypto/objects/objects.h: "ld-ce" should be "id-ce",
3870 OBJ_ld_ce should be OBJ_id_ce.
3871 Also some ip-pda OIDs in crypto/objects/objects.txt were
3872 incorrect (cf. RFC 3039).
3873 [Matt Cooper, Frederic Giudicelli, Bodo Moeller]
3875 *) Release CRYPTO_LOCK_DYNLOCK when CRYPTO_destroy_dynlockid()
3876 returns early because it has nothing to do.
3877 [Andy Schneider <andy.schneider@bjss.co.uk>]
3879 *) [In 0.9.6c-engine release:]
3880 Fix mutex callback return values in crypto/engine/hw_ncipher.c.
3881 [Andy Schneider <andy.schneider@bjss.co.uk>]
3883 *) [In 0.9.6c-engine release:]
3884 Add support for Cryptographic Appliance's keyserver technology.
3885 (Use engine 'keyclient')
3886 [Cryptographic Appliances and Geoff Thorpe]
3888 *) Add a configuration entry for OS/390 Unix. The C compiler 'c89'
3889 is called via tools/c89.sh because arguments have to be
3890 rearranged (all '-L' options must appear before the first object
3892 [Richard Shapiro <rshapiro@abinitio.com>]
3894 *) [In 0.9.6c-engine release:]
3895 Add support for Broadcom crypto accelerator cards, backported
3897 [Broadcom, Nalin Dahyabhai <nalin@redhat.com>, Mark Cox]
3899 *) [In 0.9.6c-engine release:]
3900 Add support for SureWare crypto accelerator cards from
3901 Baltimore Technologies. (Use engine 'sureware')
3902 [Baltimore Technologies and Mark Cox]
3904 *) [In 0.9.6c-engine release:]
3905 Add support for crypto accelerator cards from Accelerated
3906 Encryption Processing, www.aep.ie. (Use engine 'aep')
3907 [AEP Inc. and Mark Cox]
3909 *) Add a configuration entry for gcc on UnixWare.
3910 [Gary Benson <gbenson@redhat.com>]
3912 *) Change ssl/s2_clnt.c and ssl/s2_srvr.c so that received handshake
3913 messages are stored in a single piece (fixed-length part and
3914 variable-length part combined) and fix various bugs found on the way.
3917 *) Disable caching in BIO_gethostbyname(), directly use gethostbyname()
3918 instead. BIO_gethostbyname() does not know what timeouts are
3919 appropriate, so entries would stay in cache even when they have
3921 [Bodo Moeller; problem pointed out by Rich Salz <rsalz@zolera.com>
3923 *) Change ssl23_get_client_hello (ssl/s23_srvr.c) behaviour when
3924 faced with a pathologically small ClientHello fragment that does
3925 not contain client_version: Instead of aborting with an error,
3926 simply choose the highest available protocol version (i.e.,
3927 TLS 1.0 unless it is disabled). In practice, ClientHello
3928 messages are never sent like this, but this change gives us
3929 strictly correct behaviour at least for TLS.
3932 *) Fix SSL handshake functions and SSL_clear() such that SSL_clear()
3933 never resets s->method to s->ctx->method when called from within
3934 one of the SSL handshake functions.
3935 [Bodo Moeller; problem pointed out by Niko Baric]
3937 *) In ssl3_get_client_hello (ssl/s3_srvr.c), generate a fatal alert
3938 (sent using the client's version number) if client_version is
3939 smaller than the protocol version in use. Also change
3940 ssl23_get_client_hello (ssl/s23_srvr.c) to select TLS 1.0 if
3941 the client demanded SSL 3.0 but only TLS 1.0 is enabled; then
3942 the client will at least see that alert.
3945 *) Fix ssl3_get_message (ssl/s3_both.c) to handle message fragmentation
3949 *) Avoid infinite loop in ssl3_get_message (ssl/s3_both.c) if a
3950 client receives HelloRequest while in a handshake.
3951 [Bodo Moeller; bug noticed by Andy Schneider <andy.schneider@bjss.co.uk>]
3953 *) Bugfix in ssl3_accept (ssl/s3_srvr.c): Case SSL3_ST_SW_HELLO_REQ_C
3954 should end in 'break', not 'goto end' which circuments various
3955 cleanups done in state SSL_ST_OK. But session related stuff
3956 must be disabled for SSL_ST_OK in the case that we just sent a
3959 Also avoid some overhead by not calling ssl_init_wbio_buffer()
3960 before just sending a HelloRequest.
3961 [Bodo Moeller, Eric Rescorla <ekr@rtfm.com>]
3963 *) Fix ssl/s3_enc.c, ssl/t1_enc.c and ssl/s3_pkt.c so that we don't
3964 reveal whether illegal block cipher padding was found or a MAC
3965 verification error occured. (Neither SSLerr() codes nor alerts
3966 are directly visible to potential attackers, but the information
3967 may leak via logfiles.)
3969 Similar changes are not required for the SSL 2.0 implementation
3970 because the number of padding bytes is sent in clear for SSL 2.0,
3971 and the extra bytes are just ignored. However ssl/s2_pkt.c
3972 failed to verify that the purported number of padding bytes is in
3976 *) Add OpenUNIX-8 support including shared libraries
3977 (Boyd Lynn Gerber <gerberb@zenez.com>).
3980 *) Improve RSA_padding_check_PKCS1_OAEP() check again to avoid
3981 'wristwatch attack' using huge encoding parameters (cf.
3982 James H. Manger's CRYPTO 2001 paper). Note that the
3983 RSA_PKCS1_OAEP_PADDING case of RSA_private_decrypt() does not use
3984 encoding parameters and hence was not vulnerable.
3987 *) BN_sqr() bug fix.
3988 [Ulf Möller, reported by Jim Ellis <jim.ellis@cavium.com>]
3990 *) Rabin-Miller test analyses assume uniformly distributed witnesses,
3991 so use BN_pseudo_rand_range() instead of using BN_pseudo_rand()
3992 followed by modular reduction.
3993 [Bodo Moeller; pointed out by Adam Young <AYoung1@NCSUS.JNJ.COM>]
3995 *) Add BN_pseudo_rand_range() with obvious functionality: BN_rand_range()
3996 equivalent based on BN_pseudo_rand() instead of BN_rand().
3999 *) s3_srvr.c: allow sending of large client certificate lists (> 16 kB).
4000 This function was broken, as the check for a new client hello message
4001 to handle SGC did not allow these large messages.
4002 (Tracked down by "Douglas E. Engert" <deengert@anl.gov>.)
4005 *) Add alert descriptions for TLSv1 to SSL_alert_desc_string[_long]().
4008 *) Fix buggy behaviour of BIO_get_num_renegotiates() and BIO_ctrl()
4009 for BIO_C_GET_WRITE_BUF_SIZE ("Stephen Hinton" <shinton@netopia.com>).
4012 *) Rework the configuration and shared library support for Tru64 Unix.
4013 The configuration part makes use of modern compiler features and
4014 still retains old compiler behavior for those that run older versions
4015 of the OS. The shared library support part includes a variant that
4016 uses the RPATH feature, and is available through the special
4017 configuration target "alpha-cc-rpath", which will never be selected
4019 [Tim Mooney <mooney@dogbert.cc.ndsu.NoDak.edu> via Richard Levitte]
4021 *) In ssl3_get_key_exchange (ssl/s3_clnt.c), call ssl3_get_message()
4022 with the same message size as in ssl3_get_certificate_request().
4023 Otherwise, if no ServerKeyExchange message occurs, CertificateRequest
4024 messages might inadvertently be reject as too long.
4025 [Petr Lampa <lampa@fee.vutbr.cz>]
4027 *) Enhanced support for IA-64 Unix platforms (well, Linux and HP-UX).
4030 *) Modified SSL library such that the verify_callback that has been set
4031 specificly for an SSL object with SSL_set_verify() is actually being
4032 used. Before the change, a verify_callback set with this function was
4033 ignored and the verify_callback() set in the SSL_CTX at the time of
4034 the call was used. New function X509_STORE_CTX_set_verify_cb() introduced
4035 to allow the necessary settings.
4038 *) Initialize static variable in crypto/dsa/dsa_lib.c and crypto/dh/dh_lib.c
4039 explicitly to NULL, as at least on Solaris 8 this seems not always to be
4040 done automatically (in contradiction to the requirements of the C
4041 standard). This made problems when used from OpenSSH.
4044 *) In OpenSSL 0.9.6a and 0.9.6b, crypto/dh/dh_key.c ignored
4045 dh->length and always used
4047 BN_rand_range(priv_key, dh->p).
4049 BN_rand_range() is not necessary for Diffie-Hellman, and this
4050 specific range makes Diffie-Hellman unnecessarily inefficient if
4051 dh->length (recommended exponent length) is much smaller than the
4052 length of dh->p. We could use BN_rand_range() if the order of
4053 the subgroup was stored in the DH structure, but we only have
4058 BN_rand(priv_key, l, ...)
4060 where 'l' is dh->length if this is defined, or BN_num_bits(dh->p)-1
4066 RSA_eay_public_encrypt
4067 RSA_eay_private_decrypt
4068 RSA_eay_private_encrypt (signing)
4069 RSA_eay_public_decrypt (signature verification)
4071 (default implementations for RSA_public_encrypt,
4072 RSA_private_decrypt, RSA_private_encrypt, RSA_public_decrypt),
4073 always reject numbers >= n.
4076 *) In crypto/rand/md_rand.c, use a new short-time lock CRYPTO_LOCK_RAND2
4077 to synchronize access to 'locking_thread'. This is necessary on
4078 systems where access to 'locking_thread' (an 'unsigned long'
4079 variable) is not atomic.
4082 *) In crypto/rand/md_rand.c, set 'locking_thread' to current thread's ID
4083 *before* setting the 'crypto_lock_rand' flag. The previous code had
4084 a race condition if 0 is a valid thread ID.
4085 [Travis Vitek <vitek@roguewave.com>]
4087 *) Add support for shared libraries under Irix.
4088 [Albert Chin-A-Young <china@thewrittenword.com>]
4090 *) Add configuration option to build on Linux on both big-endian and
4092 [Ralf Baechle <ralf@uni-koblenz.de>]
4094 *) Add the possibility to create shared libraries on HP-UX.
4097 Changes between 0.9.6a and 0.9.6b [9 Jul 2001]
4099 *) Change ssleay_rand_bytes (crypto/rand/md_rand.c)
4100 to avoid a SSLeay/OpenSSL PRNG weakness pointed out by
4101 Markku-Juhani O. Saarinen <markku-juhani.saarinen@nokia.com>:
4102 PRNG state recovery was possible based on the output of
4103 one PRNG request appropriately sized to gain knowledge on
4104 'md' followed by enough consecutive 1-byte PRNG requests
4105 to traverse all of 'state'.
4107 1. When updating 'md_local' (the current thread's copy of 'md')
4108 during PRNG output generation, hash all of the previous
4109 'md_local' value, not just the half used for PRNG output.
4111 2. Make the number of bytes from 'state' included into the hash
4112 independent from the number of PRNG bytes requested.
4114 The first measure alone would be sufficient to avoid
4115 Markku-Juhani's attack. (Actually it had never occurred
4116 to me that the half of 'md_local' used for chaining was the
4117 half from which PRNG output bytes were taken -- I had always
4118 assumed that the secret half would be used.) The second
4119 measure makes sure that additional data from 'state' is never
4120 mixed into 'md_local' in small portions; this heuristically
4121 further strengthens the PRNG.
4124 *) Fix crypto/bn/asm/mips3.s.
4127 *) When only the key is given to "enc", the IV is undefined. Print out
4128 an error message in this case.
4131 *) Handle special case when X509_NAME is empty in X509 printing routines.
4134 *) In dsa_do_verify (crypto/dsa/dsa_ossl.c), verify that r and s are
4135 positive and less than q.
4138 *) Don't change *pointer in CRYPTO_add_lock() is add_lock_callback is
4139 used: it isn't thread safe and the add_lock_callback should handle
4141 [Paul Rose <Paul.Rose@bridge.com>]
4143 *) Verify that incoming data obeys the block size in
4144 ssl3_enc (ssl/s3_enc.c) and tls1_enc (ssl/t1_enc.c).
4148 [Ulf Möller, Bodo Möller]
4150 *) The countermeasure against Bleichbacher's attack on PKCS #1 v1.5
4151 RSA encryption was accidentally removed in s3_srvr.c in OpenSSL 0.9.5
4152 when fixing the server behaviour for backwards-compatible 'client
4153 hello' messages. (Note that the attack is impractical against
4154 SSL 3.0 and TLS 1.0 anyway because length and version checking
4155 means that the probability of guessing a valid ciphertext is
4156 around 2^-40; see section 5 in Bleichenbacher's CRYPTO '98
4159 Before 0.9.5, the countermeasure (hide the error by generating a
4160 random 'decryption result') did not work properly because
4161 ERR_clear_error() was missing, meaning that SSL_get_error() would
4162 detect the supposedly ignored error.
4164 Both problems are now fixed.
4167 *) In crypto/bio/bf_buff.c, increase DEFAULT_BUFFER_SIZE to 4096
4168 (previously it was 1024).
4171 *) Fix for compatibility mode trust settings: ignore trust settings
4172 unless some valid trust or reject settings are present.
4175 *) Fix for blowfish EVP: its a variable length cipher.
4178 *) Fix various bugs related to DSA S/MIME verification. Handle missing
4179 parameters in DSA public key structures and return an error in the
4180 DSA routines if parameters are absent.
4183 *) In versions up to 0.9.6, RAND_file_name() resorted to file ".rnd"
4184 in the current directory if neither $RANDFILE nor $HOME was set.
4185 RAND_file_name() in 0.9.6a returned NULL in this case. This has
4186 caused some confusion to Windows users who haven't defined $HOME.
4187 Thus RAND_file_name() is changed again: e_os.h can define a
4188 DEFAULT_HOME, which will be used if $HOME is not set.
4189 For Windows, we use "C:"; on other platforms, we still require
4190 environment variables.
4192 *) Move 'if (!initialized) RAND_poll()' into regions protected by
4193 CRYPTO_LOCK_RAND. This is not strictly necessary, but avoids
4194 having multiple threads call RAND_poll() concurrently.
4197 *) In crypto/rand/md_rand.c, replace 'add_do_not_lock' flag by a
4198 combination of a flag and a thread ID variable.
4199 Otherwise while one thread is in ssleay_rand_bytes (which sets the
4200 flag), *other* threads can enter ssleay_add_bytes without obeying
4201 the CRYPTO_LOCK_RAND lock (and may even illegally release the lock
4202 that they do not hold after the first thread unsets add_do_not_lock).
4205 *) Change bctest again: '-x' expressions are not available in all
4209 Changes between 0.9.6 and 0.9.6a [5 Apr 2001]
4211 *) Fix a couple of memory leaks in PKCS7_dataDecode()
4212 [Steve Henson, reported by Heyun Zheng <hzheng@atdsprint.com>]
4214 *) Change Configure and Makefiles to provide EXE_EXT, which will contain
4215 the default extension for executables, if any. Also, make the perl
4216 scripts that use symlink() to test if it really exists and use "cp"
4217 if it doesn't. All this made OpenSSL compilable and installable in
4221 *) Fix for asn1_GetSequence() for indefinite length constructed data.
4222 If SEQUENCE is length is indefinite just set c->slen to the total
4223 amount of data available.
4224 [Steve Henson, reported by shige@FreeBSD.org]
4225 [This change does not apply to 0.9.7.]
4227 *) Change bctest to avoid here-documents inside command substitution
4228 (workaround for FreeBSD /bin/sh bug).
4229 For compatibility with Ultrix, avoid shell functions (introduced
4230 in the bctest version that searches along $PATH).
4233 *) Rename 'des_encrypt' to 'des_encrypt1'. This avoids the clashes
4234 with des_encrypt() defined on some operating systems, like Solaris
4238 *) Check the result of RSA-CRT (see D. Boneh, R. DeMillo, R. Lipton:
4239 On the Importance of Eliminating Errors in Cryptographic
4240 Computations, J. Cryptology 14 (2001) 2, 101-119,
4241 http://theory.stanford.edu/~dabo/papers/faults.ps.gz).
4244 *) MIPS assembler BIGNUM division bug fix.
4247 *) Disabled incorrect Alpha assembler code.
4250 *) Fix PKCS#7 decode routines so they correctly update the length
4251 after reading an EOC for the EXPLICIT tag.
4253 [This change does not apply to 0.9.7.]
4255 *) Fix bug in PKCS#12 key generation routines. This was triggered
4256 if a 3DES key was generated with a 0 initial byte. Include
4257 PKCS12_BROKEN_KEYGEN compilation option to retain the old
4258 (but broken) behaviour.
4261 *) Enhance bctest to search for a working bc along $PATH and print
4263 [Tim Rice <tim@multitalents.net> via Richard Levitte]
4265 *) Fix memory leaks in err.c: free err_data string if necessary;
4266 don't write to the wrong index in ERR_set_error_data.
4269 *) Implement ssl23_peek (analogous to ssl23_read), which previously
4273 *) Replace rdtsc with _emit statements for VC++ version 5.
4274 [Jeremy Cooper <jeremy@baymoo.org>]
4276 *) Make it possible to reuse SSLv2 sessions.
4279 *) In copy_email() check for >= 0 as a return value for
4280 X509_NAME_get_index_by_NID() since 0 is a valid index.
4281 [Steve Henson reported by Massimiliano Pala <madwolf@opensca.org>]
4283 *) Avoid coredump with unsupported or invalid public keys by checking if
4284 X509_get_pubkey() fails in PKCS7_verify(). Fix memory leak when
4285 PKCS7_verify() fails with non detached data.
4288 *) Don't use getenv in library functions when run as setuid/setgid.
4289 New function OPENSSL_issetugid().
4292 *) Avoid false positives in memory leak detection code (crypto/mem_dbg.c)
4293 due to incorrect handling of multi-threading:
4295 1. Fix timing glitch in the MemCheck_off() portion of CRYPTO_mem_ctrl().
4297 2. Fix logical glitch in is_MemCheck_on() aka CRYPTO_is_mem_check_on().
4299 3. Count how many times MemCheck_off() has been called so that
4300 nested use can be treated correctly. This also avoids
4301 inband-signalling in the previous code (which relied on the
4302 assumption that thread ID 0 is impossible).
4305 *) Add "-rand" option also to s_client and s_server.
4308 *) Fix CPU detection on Irix 6.x.
4309 [Kurt Hockenbury <khockenb@stevens-tech.edu> and
4310 "Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4312 *) Fix X509_NAME bug which produced incorrect encoding if X509_NAME
4315 [This change does not apply to 0.9.7.]
4317 *) Use the cached encoding of an X509_NAME structure rather than
4318 copying it. This is apparently the reason for the libsafe "errors"
4319 but the code is actually correct.
4322 *) Add new function BN_rand_range(), and fix DSA_sign_setup() to prevent
4323 Bleichenbacher's DSA attack.
4324 Extend BN_[pseudo_]rand: As before, top=1 forces the highest two bits
4325 to be set and top=0 forces the highest bit to be set; top=-1 is new
4326 and leaves the highest bit random.
4327 [Ulf Moeller, Bodo Moeller]
4329 *) In the NCONF_...-based implementations for CONF_... queries
4330 (crypto/conf/conf_lib.c), if the input LHASH is NULL, avoid using
4331 a temporary CONF structure with the data component set to NULL
4332 (which gives segmentation faults in lh_retrieve).
4333 Instead, use NULL for the CONF pointer in CONF_get_string and
4334 CONF_get_number (which may use environment variables) and directly
4335 return NULL from CONF_get_section.
4338 *) Fix potential buffer overrun for EBCDIC.
4341 *) Tolerate nonRepudiation as being valid for S/MIME signing and certSign
4342 keyUsage if basicConstraints absent for a CA.
4345 *) Make SMIME_write_PKCS7() write mail header values with a format that
4346 is more generally accepted (no spaces before the semicolon), since
4347 some programs can't parse those values properly otherwise. Also make
4348 sure BIO's that break lines after each write do not create invalid
4352 *) Make the CRL encoding routines work with empty SEQUENCE OF. The
4353 macros previously used would not encode an empty SEQUENCE OF
4354 and break the signature.
4356 [This change does not apply to 0.9.7.]
4358 *) Zero the premaster secret after deriving the master secret in
4362 *) Add some EVP_add_digest_alias registrations (as found in
4363 OpenSSL_add_all_digests()) to SSL_library_init()
4364 aka OpenSSL_add_ssl_algorithms(). This provides improved
4365 compatibility with peers using X.509 certificates
4366 with unconventional AlgorithmIdentifier OIDs.
4369 *) Fix for Irix with NO_ASM.
4370 ["Bruce W. Forsberg" <bruce.forsberg@baesystems.com>]
4372 *) ./config script fixes.
4373 [Ulf Moeller, Richard Levitte]
4375 *) Fix 'openssl passwd -1'.
4378 *) Change PKCS12_key_gen_asc() so it can cope with non null
4379 terminated strings whose length is passed in the passlen
4380 parameter, for example from PEM callbacks. This was done
4381 by adding an extra length parameter to asc2uni().
4382 [Steve Henson, reported by <oddissey@samsung.co.kr>]
4384 *) Fix C code generated by 'openssl dsaparam -C': If a BN_bin2bn
4385 call failed, free the DSA structure.
4388 *) Fix to uni2asc() to cope with zero length Unicode strings.
4389 These are present in some PKCS#12 files.
4392 *) Increase s2->wbuf allocation by one byte in ssl2_new (ssl/s2_lib.c).
4393 Otherwise do_ssl_write (ssl/s2_pkt.c) will write beyond buffer limits
4394 when writing a 32767 byte record.
4395 [Bodo Moeller; problem reported by Eric Day <eday@concentric.net>]
4397 *) In RSA_eay_public_{en,ed}crypt and RSA_eay_mod_exp (rsa_eay.c),
4398 obtain lock CRYPTO_LOCK_RSA before setting rsa->_method_mod_{n,p,q}.
4400 (RSA objects have a reference count access to which is protected
4401 by CRYPTO_LOCK_RSA [see rsa_lib.c, s3_srvr.c, ssl_cert.c, ssl_rsa.c],
4402 so they are meant to be shared between threads.)
4403 [Bodo Moeller, Geoff Thorpe; original patch submitted by
4404 "Reddie, Steven" <Steven.Reddie@ca.com>]
4406 *) Fix a deadlock in CRYPTO_mem_leaks().
4409 *) Use better test patterns in bntest.
4412 *) rand_win.c fix for Borland C.
4415 *) BN_rshift bugfix for n == 0.
4418 *) Add a 'bctest' script that checks for some known 'bc' bugs
4419 so that 'make test' does not abort just because 'bc' is broken.
4422 *) Store verify_result within SSL_SESSION also for client side to
4423 avoid potential security hole. (Re-used sessions on the client side
4424 always resulted in verify_result==X509_V_OK, not using the original
4425 result of the server certificate verification.)
4428 *) Fix ssl3_pending: If the record in s->s3->rrec is not of type
4429 SSL3_RT_APPLICATION_DATA, return 0.
4430 Similarly, change ssl2_pending to return 0 if SSL_in_init(s) is true.
4434 Both ssl2_peek and ssl3_peek, which were totally broken in earlier
4435 releases, have been re-implemented by renaming the previous
4436 implementations of ssl2_read and ssl3_read to ssl2_read_internal
4437 and ssl3_read_internal, respectively, and adding 'peek' parameters
4438 to them. The new ssl[23]_{read,peek} functions are calls to
4439 ssl[23]_read_internal with the 'peek' flag set appropriately.
4440 A 'peek' parameter has also been added to ssl3_read_bytes, which
4441 does the actual work for ssl3_read_internal.
4444 *) Initialise "ex_data" member of RSA/DSA/DH structures prior to calling
4445 the method-specific "init()" handler. Also clean up ex_data after
4446 calling the method-specific "finish()" handler. Previously, this was
4447 happening the other way round.
4450 *) Increase BN_CTX_NUM (the number of BIGNUMs in a BN_CTX) to 16.
4451 The previous value, 12, was not always sufficient for BN_mod_exp().
4454 *) Make sure that shared libraries get the internal name engine with
4455 the full version number and not just 0. This should mark the
4456 shared libraries as not backward compatible. Of course, this should
4457 be changed again when we can guarantee backward binary compatibility.
4460 *) Fix typo in get_cert_by_subject() in by_dir.c
4461 [Jean-Marc Desperrier <jean-marc.desperrier@certplus.com>]
4463 *) Rework the system to generate shared libraries:
4465 - Make note of the expected extension for the shared libraries and
4466 if there is a need for symbolic links from for example libcrypto.so.0
4467 to libcrypto.so.0.9.7. There is extended info in Configure for
4470 - Make as few rebuilds of the shared libraries as possible.
4472 - Still avoid linking the OpenSSL programs with the shared libraries.
4474 - When installing, install the shared libraries separately from the
4478 *) Fix SSL_CTX_set_read_ahead macro to actually use its argument.
4480 Copy SSL_CTX's read_ahead flag to SSL object directly in SSL_new
4481 and not in SSL_clear because the latter is also used by the
4482 accept/connect functions; previously, the settings made by
4483 SSL_set_read_ahead would be lost during the handshake.
4484 [Bodo Moeller; problems reported by Anders Gertz <gertz@epact.se>]
4486 *) Correct util/mkdef.pl to be selective about disabled algorithms.
4487 Previously, it would create entries for disableed algorithms no
4491 *) Added several new manual pages for SSL_* function.
4494 Changes between 0.9.5a and 0.9.6 [24 Sep 2000]
4496 *) In ssl23_get_client_hello, generate an error message when faced
4497 with an initial SSL 3.0/TLS record that is too small to contain the
4498 first two bytes of the ClientHello message, i.e. client_version.
4499 (Note that this is a pathologic case that probably has never happened
4500 in real life.) The previous approach was to use the version number
4501 from the record header as a substitute; but our protocol choice
4502 should not depend on that one because it is not authenticated
4503 by the Finished messages.
4506 *) More robust randomness gathering functions for Windows.
4507 [Jeffrey Altman <jaltman@columbia.edu>]
4509 *) For compatibility reasons if the flag X509_V_FLAG_ISSUER_CHECK is
4510 not set then we don't setup the error code for issuer check errors
4511 to avoid possibly overwriting other errors which the callback does
4512 handle. If an application does set the flag then we assume it knows
4513 what it is doing and can handle the new informational codes
4517 *) Fix for a nasty bug in ASN1_TYPE handling. ASN1_TYPE is used for
4518 a general "ANY" type, as such it should be able to decode anything
4519 including tagged types. However it didn't check the class so it would
4520 wrongly interpret tagged types in the same way as their universal
4521 counterpart and unknown types were just rejected. Changed so that the
4522 tagged and unknown types are handled in the same way as a SEQUENCE:
4523 that is the encoding is stored intact. There is also a new type
4524 "V_ASN1_OTHER" which is used when the class is not universal, in this
4525 case we have no idea what the actual type is so we just lump them all
4529 *) On VMS, stdout may very well lead to a file that is written to
4530 in a record-oriented fashion. That means that every write() will
4531 write a separate record, which will be read separately by the
4532 programs trying to read from it. This can be very confusing.
4534 The solution is to put a BIO filter in the way that will buffer
4535 text until a linefeed is reached, and then write everything a
4536 line at a time, so every record written will be an actual line,
4537 not chunks of lines and not (usually doesn't happen, but I've
4538 seen it once) several lines in one record. BIO_f_linebuffer() is
4541 Currently, it's a VMS-only method, because that's where it has
4542 been tested well enough.
4545 *) Remove 'optimized' squaring variant in BN_mod_mul_montgomery,
4546 it can return incorrect results.
4547 (Note: The buggy variant was not enabled in OpenSSL 0.9.5a,
4548 but it was in 0.9.6-beta[12].)
4551 *) Disable the check for content being present when verifying detached
4552 signatures in pk7_smime.c. Some versions of Netscape (wrongly)
4553 include zero length content when signing messages.
4556 *) New BIO_shutdown_wr macro, which invokes the BIO_C_SHUTDOWN_WR
4557 BIO_ctrl (for BIO pairs).
4560 *) Add DSO method for VMS.
4563 *) Bug fix: Montgomery multiplication could produce results with the
4567 *) Add RPM specification openssl.spec and modify it to build three
4568 packages. The default package contains applications, application
4569 documentation and run-time libraries. The devel package contains
4570 include files, static libraries and function documentation. The
4571 doc package contains the contents of the doc directory. The original
4572 openssl.spec was provided by Damien Miller <djm@mindrot.org>.
4575 *) Add a large number of documentation files for many SSL routines.
4576 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
4578 *) Add a configuration entry for Sony News 4.
4579 [NAKAJI Hiroyuki <nakaji@tutrp.tut.ac.jp>]
4581 *) Don't set the two most significant bits to one when generating a
4582 random number < q in the DSA library.
4585 *) New SSL API mode 'SSL_MODE_AUTO_RETRY'. This disables the default
4586 behaviour that SSL_read may result in SSL_ERROR_WANT_READ (even if
4587 the underlying transport is blocking) if a handshake took place.
4588 (The default behaviour is needed by applications such as s_client
4589 and s_server that use select() to determine when to use SSL_read;
4590 but for applications that know in advance when to expect data, it
4591 just makes things more complicated.)
4594 *) Add RAND_egd_bytes(), which gives control over the number of bytes read
4598 *) Add a few more EBCDIC conditionals that make `req' and `x509'
4599 work better on such systems.
4600 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
4602 *) Add two demo programs for PKCS12_parse() and PKCS12_create().
4603 Update PKCS12_parse() so it copies the friendlyName and the
4604 keyid to the certificates aux info.
4607 *) Fix bug in PKCS7_verify() which caused an infinite loop
4608 if there was more than one signature.
4609 [Sven Uszpelkat <su@celocom.de>]
4611 *) Major change in util/mkdef.pl to include extra information
4612 about each symbol, as well as presentig variables as well
4613 as functions. This change means that there's n more need
4614 to rebuild the .num files when some algorithms are excluded.
4617 *) Allow the verify time to be set by an application,
4618 rather than always using the current time.
4621 *) Phase 2 verify code reorganisation. The certificate
4622 verify code now looks up an issuer certificate by a
4623 number of criteria: subject name, authority key id
4624 and key usage. It also verifies self signed certificates
4625 by the same criteria. The main comparison function is
4626 X509_check_issued() which performs these checks.
4628 Lot of changes were necessary in order to support this
4629 without completely rewriting the lookup code.
4631 Authority and subject key identifier are now cached.
4633 The LHASH 'certs' is X509_STORE has now been replaced
4634 by a STACK_OF(X509_OBJECT). This is mainly because an
4635 LHASH can't store or retrieve multiple objects with
4636 the same hash value.
4638 As a result various functions (which were all internal
4639 use only) have changed to handle the new X509_STORE
4640 structure. This will break anything that messed round
4641 with X509_STORE internally.
4643 The functions X509_STORE_add_cert() now checks for an
4644 exact match, rather than just subject name.
4646 The X509_STORE API doesn't directly support the retrieval
4647 of multiple certificates matching a given criteria, however
4648 this can be worked round by performing a lookup first
4649 (which will fill the cache with candidate certificates)
4650 and then examining the cache for matches. This is probably
4651 the best we can do without throwing out X509_LOOKUP
4652 entirely (maybe later...).
4654 The X509_VERIFY_CTX structure has been enhanced considerably.
4656 All certificate lookup operations now go via a get_issuer()
4657 callback. Although this currently uses an X509_STORE it
4658 can be replaced by custom lookups. This is a simple way
4659 to bypass the X509_STORE hackery necessary to make this
4660 work and makes it possible to use more efficient techniques
4661 in future. A very simple version which uses a simple
4662 STACK for its trusted certificate store is also provided
4663 using X509_STORE_CTX_trusted_stack().
4665 The verify_cb() and verify() callbacks now have equivalents
4666 in the X509_STORE_CTX structure.
4668 X509_STORE_CTX also has a 'flags' field which can be used
4669 to customise the verify behaviour.
4672 *) Add new PKCS#7 signing option PKCS7_NOSMIMECAP which
4673 excludes S/MIME capabilities.
4676 *) When a certificate request is read in keep a copy of the
4677 original encoding of the signed data and use it when outputing
4678 again. Signatures then use the original encoding rather than
4679 a decoded, encoded version which may cause problems if the
4680 request is improperly encoded.
4683 *) For consistency with other BIO_puts implementations, call
4684 buffer_write(b, ...) directly in buffer_puts instead of calling
4687 In BIO_puts, increment b->num_write as in BIO_write.
4688 [Peter.Sylvester@EdelWeb.fr]
4690 *) Fix BN_mul_word for the case where the word is 0. (We have to use
4691 BN_zero, we may not return a BIGNUM with an array consisting of
4695 *) Avoid calling abort() from within the library when problems are
4696 detected, except if preprocessor symbols have been defined
4697 (such as REF_CHECK, BN_DEBUG etc.).
4700 *) New openssl application 'rsautl'. This utility can be
4701 used for low level RSA operations. DER public key
4702 BIO/fp routines also added.
4705 *) New Configure entry and patches for compiling on QNX 4.
4706 [Andreas Schneider <andreas@ds3.etech.fh-hamburg.de>]
4708 *) A demo state-machine implementation was sponsored by
4709 Nuron (http://www.nuron.com/) and is now available in
4710 demos/state_machine.
4713 *) New options added to the 'dgst' utility for signature
4714 generation and verification.
4717 *) Unrecognized PKCS#7 content types are now handled via a
4718 catch all ASN1_TYPE structure. This allows unsupported
4719 types to be stored as a "blob" and an application can
4720 encode and decode it manually.
4723 *) Fix various signed/unsigned issues to make a_strex.c
4725 [Oscar Jacobsson <oscar.jacobsson@celocom.com>]
4727 *) ASN1 fixes. i2d_ASN1_OBJECT was not returning the correct
4728 length if passed a buffer. ASN1_INTEGER_to_BN failed
4729 if passed a NULL BN and its argument was negative.
4730 [Steve Henson, pointed out by Sven Heiberg <sven@tartu.cyber.ee>]
4732 *) Modification to PKCS#7 encoding routines to output definite
4733 length encoding. Since currently the whole structures are in
4734 memory there's not real point in using indefinite length
4735 constructed encoding. However if OpenSSL is compiled with
4736 the flag PKCS7_INDEFINITE_ENCODING the old form is used.
4739 *) Added BIO_vprintf() and BIO_vsnprintf().
4742 *) Added more prefixes to parse for in the the strings written
4743 through a logging bio, to cover all the levels that are available
4744 through syslog. The prefixes are now:
4746 PANIC, EMERG, EMR => LOG_EMERG
4747 ALERT, ALR => LOG_ALERT
4748 CRIT, CRI => LOG_CRIT
4749 ERROR, ERR => LOG_ERR
4750 WARNING, WARN, WAR => LOG_WARNING
4751 NOTICE, NOTE, NOT => LOG_NOTICE
4752 INFO, INF => LOG_INFO
4753 DEBUG, DBG => LOG_DEBUG
4755 and as before, if none of those prefixes are present at the
4756 beginning of the string, LOG_ERR is chosen.
4758 On Win32, the LOG_* levels are mapped according to this:
4760 LOG_EMERG, LOG_ALERT, LOG_CRIT, LOG_ERR => EVENTLOG_ERROR_TYPE
4761 LOG_WARNING => EVENTLOG_WARNING_TYPE
4762 LOG_NOTICE, LOG_INFO, LOG_DEBUG => EVENTLOG_INFORMATION_TYPE
4766 *) Made it possible to reconfigure with just the configuration
4767 argument "reconf" or "reconfigure". The command line arguments
4768 are stored in Makefile.ssl in the variable CONFIGURE_ARGS,
4769 and are retrieved from there when reconfiguring.
4773 [Assar Westerlund <assar@sics.se>, Richard Levitte]
4775 *) Add the arguments -CAfile and -CApath to the pkcs12 utility.
4778 *) The obj_dat.pl script was messing up the sorting of object
4779 names. The reason was that it compared the quoted version
4780 of strings as a result "OCSP" > "OCSP Signing" because
4781 " > SPACE. Changed script to store unquoted versions of
4782 names and add quotes on output. It was also omitting some
4783 names from the lookup table if they were given a default
4784 value (that is if SN is missing it is given the same
4785 value as LN and vice versa), these are now added on the
4786 grounds that if an object has a name we should be able to
4787 look it up. Finally added warning output when duplicate
4788 short or long names are found.
4791 *) Changes needed for Tandem NSK.
4792 [Scott Uroff <scott@xypro.com>]
4794 *) Fix SSL 2.0 rollback checking: Due to an off-by-one error in
4795 RSA_padding_check_SSLv23(), special padding was never detected
4796 and thus the SSL 3.0/TLS 1.0 countermeasure against protocol
4797 version rollback attacks was not effective.
4799 In s23_clnt.c, don't use special rollback-attack detection padding
4800 (RSA_SSLV23_PADDING) if SSL 2.0 is the only protocol enabled in the
4801 client; similarly, in s23_srvr.c, don't do the rollback check if
4802 SSL 2.0 is the only protocol enabled in the server.
4805 *) Make it possible to get hexdumps of unprintable data with 'openssl
4806 asn1parse'. By implication, the functions ASN1_parse_dump() and
4807 BIO_dump_indent() are added.
4810 *) New functions ASN1_STRING_print_ex() and X509_NAME_print_ex()
4811 these print out strings and name structures based on various
4812 flags including RFC2253 support and proper handling of
4813 multibyte characters. Added options to the 'x509' utility
4814 to allow the various flags to be set.
4817 *) Various fixes to use ASN1_TIME instead of ASN1_UTCTIME.
4818 Also change the functions X509_cmp_current_time() and
4819 X509_gmtime_adj() work with an ASN1_TIME structure,
4820 this will enable certificates using GeneralizedTime in validity
4821 dates to be checked.
4824 *) Make the NEG_PUBKEY_BUG code (which tolerates invalid
4825 negative public key encodings) on by default,
4826 NO_NEG_PUBKEY_BUG can be set to disable it.
4829 *) New function c2i_ASN1_OBJECT() which acts on ASN1_OBJECT
4830 content octets. An i2c_ASN1_OBJECT is unnecessary because
4831 the encoding can be trivially obtained from the structure.
4834 *) crypto/err.c locking bugfix: Use write locks (CRYPTO_w_[un]lock),
4835 not read locks (CRYPTO_r_[un]lock).
4838 *) A first attempt at creating official support for shared
4839 libraries through configuration. I've kept it so the
4840 default is static libraries only, and the OpenSSL programs
4841 are always statically linked for now, but there are
4842 preparations for dynamic linking in place.
4843 This has been tested on Linux and Tru64.
4846 *) Randomness polling function for Win9x, as described in:
4847 Peter Gutmann, Software Generation of Practically Strong
4851 *) Fix so PRNG is seeded in req if using an already existing
4855 *) New options to smime application. -inform and -outform
4856 allow alternative formats for the S/MIME message including
4857 PEM and DER. The -content option allows the content to be
4858 specified separately. This should allow things like Netscape
4859 form signing output easier to verify.
4862 *) Fix the ASN1 encoding of tags using the 'long form'.
4865 *) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
4866 STRING types. These convert content octets to and from the
4867 underlying type. The actual tag and length octets are
4868 already assumed to have been read in and checked. These
4869 are needed because all other string types have virtually
4870 identical handling apart from the tag. By having versions
4871 of the ASN1 functions that just operate on content octets
4872 IMPLICIT tagging can be handled properly. It also allows
4873 the ASN1_ENUMERATED code to be cut down because ASN1_ENUMERATED
4874 and ASN1_INTEGER are identical apart from the tag.
4877 *) Change the handling of OID objects as follows:
4879 - New object identifiers are inserted in objects.txt, following
4880 the syntax given in objects.README.
4881 - objects.pl is used to process obj_mac.num and create a new
4883 - obj_dat.pl is used to create a new obj_dat.h, using the data in
4886 This is currently kind of a hack, and the perl code in objects.pl
4887 isn't very elegant, but it works as I intended. The simplest way
4888 to check that it worked correctly is to look in obj_dat.h and
4889 check the array nid_objs and make sure the objects haven't moved
4890 around (this is important!). Additions are OK, as well as
4891 consistent name changes.
4894 *) Add BSD-style MD5-based passwords to 'openssl passwd' (option '-1').
4897 *) Addition of the command line parameter '-rand file' to 'openssl req'.
4898 The given file adds to whatever has already been seeded into the
4899 random pool through the RANDFILE configuration file option or
4900 environment variable, or the default random state file.
4903 *) mkstack.pl now sorts each macro group into lexical order.
4904 Previously the output order depended on the order the files
4905 appeared in the directory, resulting in needless rewriting
4909 *) Patches to make OpenSSL compile under Win32 again. Mostly
4910 work arounds for the VC++ problem that it treats func() as
4911 func(void). Also stripped out the parts of mkdef.pl that
4912 added extra typesafe functions: these no longer exist.
4915 *) Reorganisation of the stack code. The macros are now all
4916 collected in safestack.h . Each macro is defined in terms of
4917 a "stack macro" of the form SKM_<name>(type, a, b). The
4918 DEBUG_SAFESTACK is now handled in terms of function casts,
4919 this has the advantage of retaining type safety without the
4920 use of additional functions. If DEBUG_SAFESTACK is not defined
4921 then the non typesafe macros are used instead. Also modified the
4922 mkstack.pl script to handle the new form. Needs testing to see
4923 if which (if any) compilers it chokes and maybe make DEBUG_SAFESTACK
4924 the default if no major problems. Similar behaviour for ASN1_SET_OF
4925 and PKCS12_STACK_OF.
4928 *) When some versions of IIS use the 'NET' form of private key the
4929 key derivation algorithm is different. Normally MD5(password) is
4930 used as a 128 bit RC4 key. In the modified case
4931 MD5(MD5(password) + "SGCKEYSALT") is used insted. Added some
4932 new functions i2d_RSA_NET(), d2i_RSA_NET() etc which are the same
4933 as the old Netscape_RSA functions except they have an additional
4934 'sgckey' parameter which uses the modified algorithm. Also added
4935 an -sgckey command line option to the rsa utility. Thanks to
4936 Adrian Peck <bertie@ncipher.com> for posting details of the modified
4937 algorithm to openssl-dev.
4940 *) The evp_local.h macros were using 'c.##kname' which resulted in
4941 invalid expansion on some systems (SCO 5.0.5 for example).
4942 Corrected to 'c.kname'.
4943 [Phillip Porch <root@theporch.com>]
4945 *) New X509_get1_email() and X509_REQ_get1_email() functions that return
4946 a STACK of email addresses from a certificate or request, these look
4947 in the subject name and the subject alternative name extensions and
4948 omit any duplicate addresses.
4951 *) Re-implement BN_mod_exp2_mont using independent (and larger) windows.
4952 This makes DSA verification about 2 % faster.
4955 *) Increase maximum window size in BN_mod_exp_... to 6 bits instead of 5
4956 (meaning that now 2^5 values will be precomputed, which is only 4 KB
4957 plus overhead for 1024 bit moduli).
4958 This makes exponentiations about 0.5 % faster for 1024 bit
4959 exponents (as measured by "openssl speed rsa2048").
4962 *) Rename memory handling macros to avoid conflicts with other
4964 Malloc => OPENSSL_malloc
4965 Malloc_locked => OPENSSL_malloc_locked
4966 Realloc => OPENSSL_realloc
4967 Free => OPENSSL_free
4970 *) New function BN_mod_exp_mont_word for small bases (roughly 15%
4971 faster than BN_mod_exp_mont, i.e. 7% for a full DH exchange).
4974 *) CygWin32 support.
4975 [John Jarvie <jjarvie@newsguy.com>]
4977 *) The type-safe stack code has been rejigged. It is now only compiled
4978 in when OpenSSL is configured with the DEBUG_SAFESTACK option and
4979 by default all type-specific stack functions are "#define"d back to
4980 standard stack functions. This results in more streamlined output
4981 but retains the type-safety checking possibilities of the original
4985 *) The STACK code has been cleaned up, and certain type declarations
4986 that didn't make a lot of sense have been brought in line. This has
4987 also involved a cleanup of sorts in safestack.h to more correctly
4988 map type-safe stack functions onto their plain stack counterparts.
4989 This work has also resulted in a variety of "const"ifications of
4990 lots of the code, especially "_cmp" operations which should normally
4991 be prototyped with "const" parameters anyway.
4994 *) When generating bytes for the first time in md_rand.c, 'stir the pool'
4995 by seeding with STATE_SIZE dummy bytes (with zero entropy count).
4996 (The PRNG state consists of two parts, the large pool 'state' and 'md',
4997 where all of 'md' is used each time the PRNG is used, but 'state'
4998 is used only indexed by a cyclic counter. As entropy may not be
4999 well distributed from the beginning, 'md' is important as a
5000 chaining variable. However, the output function chains only half
5001 of 'md', i.e. 80 bits. ssleay_rand_add, on the other hand, chains
5002 all of 'md', and seeding with STATE_SIZE dummy bytes will result
5003 in all of 'state' being rewritten, with the new values depending
5004 on virtually all of 'md'. This overcomes the 80 bit limitation.)
5007 *) In ssl/s2_clnt.c and ssl/s3_clnt.c, call ERR_clear_error() when
5008 the handshake is continued after ssl_verify_cert_chain();
5009 otherwise, if SSL_VERIFY_NONE is set, remaining error codes
5010 can lead to 'unexplainable' connection aborts later.
5011 [Bodo Moeller; problem tracked down by Lutz Jaenicke]
5013 *) Major EVP API cipher revision.
5014 Add hooks for extra EVP features. This allows various cipher
5015 parameters to be set in the EVP interface. Support added for variable
5016 key length ciphers via the EVP_CIPHER_CTX_set_key_length() function and
5017 setting of RC2 and RC5 parameters.
5019 Modify EVP_OpenInit() and EVP_SealInit() to cope with variable key length
5022 Remove lots of duplicated code from the EVP library. For example *every*
5023 cipher init() function handles the 'iv' in the same way according to the
5024 cipher mode. They also all do nothing if the 'key' parameter is NULL and
5025 for CFB and OFB modes they zero ctx->num.
5027 New functionality allows removal of S/MIME code RC2 hack.
5029 Most of the routines have the same form and so can be declared in terms
5032 By shifting this to the top level EVP_CipherInit() it can be removed from
5033 all individual ciphers. If the cipher wants to handle IVs or keys
5034 differently it can set the EVP_CIPH_CUSTOM_IV or EVP_CIPH_ALWAYS_CALL_INIT
5037 Change lots of functions like EVP_EncryptUpdate() to now return a
5038 value: although software versions of the algorithms cannot fail
5039 any installed hardware versions can.
5042 *) Implement SSL_OP_TLS_ROLLBACK_BUG: In ssl3_get_client_key_exchange, if
5043 this option is set, tolerate broken clients that send the negotiated
5044 protocol version number instead of the requested protocol version
5048 *) Call dh_tmp_cb (set by ..._TMP_DH_CB) with correct 'is_export' flag;
5049 i.e. non-zero for export ciphersuites, zero otherwise.
5050 Previous versions had this flag inverted, inconsistent with
5051 rsa_tmp_cb (..._TMP_RSA_CB).
5052 [Bodo Moeller; problem reported by Amit Chopra]
5054 *) Add missing DSA library text string. Work around for some IIS
5055 key files with invalid SEQUENCE encoding.
5058 *) Add a document (doc/standards.txt) that list all kinds of standards
5059 and so on that are implemented in OpenSSL.
5062 *) Enhance c_rehash script. Old version would mishandle certificates
5063 with the same subject name hash and wouldn't handle CRLs at all.
5064 Added -fingerprint option to crl utility, to support new c_rehash
5068 *) Eliminate non-ANSI declarations in crypto.h and stack.h.
5071 *) Fix for SSL server purpose checking. Server checking was
5072 rejecting certificates which had extended key usage present
5073 but no ssl client purpose.
5074 [Steve Henson, reported by Rene Grosser <grosser@hisolutions.com>]
5076 *) Make PKCS#12 code work with no password. The PKCS#12 spec
5077 is a little unclear about how a blank password is handled.
5078 Since the password in encoded as a BMPString with terminating
5079 double NULL a zero length password would end up as just the
5080 double NULL. However no password at all is different and is
5081 handled differently in the PKCS#12 key generation code. NS
5082 treats a blank password as zero length. MSIE treats it as no
5083 password on export: but it will try both on import. We now do
5084 the same: PKCS12_parse() tries zero length and no password if
5085 the password is set to "" or NULL (NULL is now a valid password:
5086 it wasn't before) as does the pkcs12 application.
5089 *) Bugfixes in apps/x509.c: Avoid a memory leak; and don't use
5090 perror when PEM_read_bio_X509_REQ fails, the error message must
5091 be obtained from the error queue.
5094 *) Avoid 'thread_hash' memory leak in crypto/err/err.c by freeing
5095 it in ERR_remove_state if appropriate, and change ERR_get_state
5096 accordingly to avoid race conditions (this is necessary because
5097 thread_hash is no longer constant once set).
5100 *) Bugfix for linux-elf makefile.one.
5103 *) RSA_get_default_method() will now cause a default
5104 RSA_METHOD to be chosen if one doesn't exist already.
5105 Previously this was only set during a call to RSA_new()
5106 or RSA_new_method(NULL) meaning it was possible for
5107 RSA_get_default_method() to return NULL.
5110 *) Added native name translation to the existing DSO code
5111 that will convert (if the flag to do so is set) filenames
5112 that are sufficiently small and have no path information
5113 into a canonical native form. Eg. "blah" converted to
5114 "libblah.so" or "blah.dll" etc.
5117 *) New function ERR_error_string_n(e, buf, len) which is like
5118 ERR_error_string(e, buf), but writes at most 'len' bytes
5119 including the 0 terminator. For ERR_error_string_n, 'buf'
5121 [Damien Miller <djm@mindrot.org>, Bodo Moeller]
5123 *) CONF library reworked to become more general. A new CONF
5124 configuration file reader "class" is implemented as well as a
5125 new functions (NCONF_*, for "New CONF") to handle it. The now
5126 old CONF_* functions are still there, but are reimplemented to
5127 work in terms of the new functions. Also, a set of functions
5128 to handle the internal storage of the configuration data is
5129 provided to make it easier to write new configuration file
5130 reader "classes" (I can definitely see something reading a
5131 configuration file in XML format, for example), called _CONF_*,
5132 or "the configuration storage API"...
5134 The new configuration file reading functions are:
5136 NCONF_new, NCONF_free, NCONF_load, NCONF_load_fp, NCONF_load_bio,
5137 NCONF_get_section, NCONF_get_string, NCONF_get_numbre
5139 NCONF_default, NCONF_WIN32
5141 NCONF_dump_fp, NCONF_dump_bio
5143 NCONF_default and NCONF_WIN32 are method (or "class") choosers,
5144 NCONF_new creates a new CONF object. This works in the same way
5145 as other interfaces in OpenSSL, like the BIO interface.
5146 NCONF_dump_* dump the internal storage of the configuration file,
5147 which is useful for debugging. All other functions take the same
5148 arguments as the old CONF_* functions wth the exception of the
5149 first that must be a `CONF *' instead of a `LHASH *'.
5151 To make it easer to use the new classes with the old CONF_* functions,
5152 the function CONF_set_default_method is provided.
5155 *) Add '-tls1' option to 'openssl ciphers', which was already
5156 mentioned in the documentation but had not been implemented.
5157 (This option is not yet really useful because even the additional
5158 experimental TLS 1.0 ciphers are currently treated as SSL 3.0 ciphers.)
5161 *) Initial DSO code added into libcrypto for letting OpenSSL (and
5162 OpenSSL-based applications) load shared libraries and bind to
5163 them in a portable way.
5164 [Geoff Thorpe, with contributions from Richard Levitte]
5166 Changes between 0.9.5 and 0.9.5a [1 Apr 2000]
5168 *) Make sure _lrotl and _lrotr are only used with MSVC.
5170 *) Use lock CRYPTO_LOCK_RAND correctly in ssleay_rand_status
5171 (the default implementation of RAND_status).
5173 *) Rename openssl x509 option '-crlext', which was added in 0.9.5,
5174 to '-clrext' (= clear extensions), as intended and documented.
5175 [Bodo Moeller; inconsistency pointed out by Michael Attili
5178 *) Fix for HMAC. It wasn't zeroing the rest of the block if the key length
5179 was larger than the MD block size.
5180 [Steve Henson, pointed out by Yost William <YostW@tce.com>]
5182 *) Modernise PKCS12_parse() so it uses STACK_OF(X509) for its ca argument
5183 fix a leak when the ca argument was passed as NULL. Stop X509_PUBKEY_set()
5184 using the passed key: if the passed key was a private key the result
5185 of X509_print(), for example, would be to print out all the private key
5189 *) des_quad_cksum() byte order bug fix.
5190 [Ulf Möller, using the problem description in krb4-0.9.7, where
5191 the solution is attributed to Derrick J Brashear <shadow@DEMENTIA.ORG>]
5193 *) Fix so V_ASN1_APP_CHOOSE works again: however its use is strongly
5195 [Steve Henson, pointed out by Brian Korver <briank@cs.stanford.edu>]
5197 *) For easily testing in shell scripts whether some command
5198 'openssl XXX' exists, the new pseudo-command 'openssl no-XXX'
5199 returns with exit code 0 iff no command of the given name is available.
5200 'no-XXX' is printed in this case, 'XXX' otherwise. In both cases,
5201 the output goes to stdout and nothing is printed to stderr.
5202 Additional arguments are always ignored.
5204 Since for each cipher there is a command of the same name,
5205 the 'no-cipher' compilation switches can be tested this way.
5207 ('openssl no-XXX' is not able to detect pseudo-commands such
5208 as 'quit', 'list-XXX-commands', or 'no-XXX' itself.)
5211 *) Update test suite so that 'make test' succeeds in 'no-rsa' configuration.
5214 *) For SSL_[CTX_]set_tmp_dh, don't create a DH key if SSL_OP_SINGLE_DH_USE
5215 is set; it will be thrown away anyway because each handshake creates
5217 ssl_cert_dup, which is used by SSL_new, now copies DH keys in addition
5218 to parameters -- in previous versions (since OpenSSL 0.9.3) the
5219 'default key' from SSL_CTX_set_tmp_dh would always be lost, meanining
5220 you effectivly got SSL_OP_SINGLE_DH_USE when using this macro.
5223 *) New s_client option -ign_eof: EOF at stdin is ignored, and
5224 'Q' and 'R' lose their special meanings (quit/renegotiate).
5225 This is part of what -quiet does; unlike -quiet, -ign_eof
5226 does not suppress any output.
5229 *) Add compatibility options to the purpose and trust code. The
5230 purpose X509_PURPOSE_ANY is "any purpose" which automatically
5231 accepts a certificate or CA, this was the previous behaviour,
5232 with all the associated security issues.
5234 X509_TRUST_COMPAT is the old trust behaviour: only and
5235 automatically trust self signed roots in certificate store. A
5236 new trust setting X509_TRUST_DEFAULT is used to specify that
5237 a purpose has no associated trust setting and it should instead
5238 use the value in the default purpose.
5241 *) Fix the PKCS#8 DSA private key code so it decodes keys again
5242 and fix a memory leak.
5245 *) In util/mkerr.pl (which implements 'make errors'), preserve
5246 reason strings from the previous version of the .c file, as
5247 the default to have only downcase letters (and digits) in
5248 automatically generated reasons codes is not always appropriate.
5251 *) In ERR_load_ERR_strings(), build an ERR_LIB_SYS error reason table
5252 using strerror. Previously, ERR_reason_error_string() returned
5253 library names as reason strings for SYSerr; but SYSerr is a special
5254 case where small numbers are errno values, not library numbers.
5257 *) Add '-dsaparam' option to 'openssl dhparam' application. This
5258 converts DSA parameters into DH parameters. (When creating parameters,
5259 DSA_generate_parameters is used.)
5262 *) Include 'length' (recommended exponent length) in C code generated
5263 by 'openssl dhparam -C'.
5266 *) The second argument to set_label in perlasm was already being used
5267 so couldn't be used as a "file scope" flag. Moved to third argument
5271 *) In PEM_ASN1_write_bio and some other functions, use RAND_pseudo_bytes
5272 instead of RAND_bytes for encryption IVs and salts.
5275 *) Include RAND_status() into RAND_METHOD instead of implementing
5276 it only for md_rand.c Otherwise replacing the PRNG by calling
5277 RAND_set_rand_method would be impossible.
5280 *) Don't let DSA_generate_key() enter an infinite loop if the random
5281 number generation fails.
5284 *) New 'rand' application for creating pseudo-random output.
5287 *) Added configuration support for Linux/IA64
5288 [Rolf Haberrecker <rolf@suse.de>]
5290 *) Assembler module support for Mingw32.
5293 *) Shared library support for HPUX (in shlib/).
5294 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE> and Anonymous]
5296 *) Shared library support for Solaris gcc.
5297 [Lutz Behnke <behnke@trustcenter.de>]
5299 Changes between 0.9.4 and 0.9.5 [28 Feb 2000]
5301 *) PKCS7_encrypt() was adding text MIME headers twice because they
5302 were added manually and by SMIME_crlf_copy().
5305 *) In bntest.c don't call BN_rand with zero bits argument.
5306 [Steve Henson, pointed out by Andrew W. Gray <agray@iconsinc.com>]
5308 *) BN_mul bugfix: In bn_mul_part_recursion() only the a>a[n] && b>b[n]
5309 case was implemented. This caused BN_div_recp() to fail occasionally.
5312 *) Add an optional second argument to the set_label() in the perl
5313 assembly language builder. If this argument exists and is set
5314 to 1 it signals that the assembler should use a symbol whose
5315 scope is the entire file, not just the current function. This
5316 is needed with MASM which uses the format label:: for this scope.
5317 [Steve Henson, pointed out by Peter Runestig <peter@runestig.com>]
5319 *) Change the ASN1 types so they are typedefs by default. Before
5320 almost all types were #define'd to ASN1_STRING which was causing
5321 STACK_OF() problems: you couldn't declare STACK_OF(ASN1_UTF8STRING)
5325 *) Change names of new functions to the new get1/get0 naming
5326 convention: After 'get1', the caller owns a reference count
5327 and has to call ..._free; 'get0' returns a pointer to some
5328 data structure without incrementing reference counters.
5329 (Some of the existing 'get' functions increment a reference
5330 counter, some don't.)
5331 Similarly, 'set1' and 'add1' functions increase reference
5332 counters or duplicate objects.
5335 *) Allow for the possibility of temp RSA key generation failure:
5336 the code used to assume it always worked and crashed on failure.
5339 *) Fix potential buffer overrun problem in BIO_printf().
5340 [Ulf Möller, using public domain code by Patrick Powell; problem
5341 pointed out by David Sacerdote <das33@cornell.edu>]
5343 *) Support EGD <http://www.lothar.com/tech/crypto/>. New functions
5344 RAND_egd() and RAND_status(). In the command line application,
5345 the EGD socket can be specified like a seed file using RANDFILE
5349 *) Allow the string CERTIFICATE to be tolerated in PKCS#7 structures.
5350 Some CAs (e.g. Verisign) distribute certificates in this form.
5353 *) Remove the SSL_ALLOW_ADH compile option and set the default cipher
5354 list to exclude them. This means that no special compilation option
5355 is needed to use anonymous DH: it just needs to be included in the
5359 *) Change the EVP_MD_CTX_type macro so its meaning consistent with
5360 EVP_MD_type. The old functionality is available in a new macro called
5361 EVP_MD_md(). Change code that uses it and update docs.
5364 *) ..._ctrl functions now have corresponding ..._callback_ctrl functions
5365 where the 'void *' argument is replaced by a function pointer argument.
5366 Previously 'void *' was abused to point to functions, which works on
5367 many platforms, but is not correct. As these functions are usually
5368 called by macros defined in OpenSSL header files, most source code
5369 should work without changes.
5372 *) <openssl/opensslconf.h> (which is created by Configure) now contains
5373 sections with information on -D... compiler switches used for
5374 compiling the library so that applications can see them. To enable
5375 one of these sections, a pre-processor symbol OPENSSL_..._DEFINES
5376 must be defined. E.g.,
5377 #define OPENSSL_ALGORITHM_DEFINES
5378 #include <openssl/opensslconf.h>
5379 defines all pertinent NO_<algo> symbols, such as NO_IDEA, NO_RSA, etc.
5380 [Richard Levitte, Ulf and Bodo Möller]
5382 *) Bugfix: Tolerate fragmentation and interleaving in the SSL 3/TLS
5386 *) Change the 'other' type in certificate aux info to a STACK_OF
5387 X509_ALGOR. Although not an AlgorithmIdentifier as such it has
5388 the required ASN1 format: arbitrary types determined by an OID.
5391 *) Add some PEM_write_X509_REQ_NEW() functions and a command line
5392 argument to 'req'. This is not because the function is newer or
5393 better than others it just uses the work 'NEW' in the certificate
5394 request header lines. Some software needs this.
5397 *) Reorganise password command line arguments: now passwords can be
5398 obtained from various sources. Delete the PEM_cb function and make
5399 it the default behaviour: i.e. if the callback is NULL and the
5400 usrdata argument is not NULL interpret it as a null terminated pass
5401 phrase. If usrdata and the callback are NULL then the pass phrase
5402 is prompted for as usual.
5405 *) Add support for the Compaq Atalla crypto accelerator. If it is installed,
5406 the support is automatically enabled. The resulting binaries will
5407 autodetect the card and use it if present.
5408 [Ben Laurie and Compaq Inc.]
5410 *) Work around for Netscape hang bug. This sends certificate request
5411 and server done in one record. Since this is perfectly legal in the
5412 SSL/TLS protocol it isn't a "bug" option and is on by default. See
5413 the bugs/SSLv3 entry for more info.
5416 *) HP-UX tune-up: new unified configs, HP C compiler bug workaround.
5419 *) Add -rand argument to smime and pkcs12 applications and read/write
5423 *) New 'passwd' tool for crypt(3) and apr1 password hashes.
5426 *) Add command line password options to the remaining applications.
5429 *) Bug fix for BN_div_recp() for numerators with an even number of
5433 *) More tests in bntest.c, and changed test_bn output.
5436 *) ./config recognizes MacOS X now.
5439 *) Bug fix for BN_div() when the first words of num and divsor are
5440 equal (it gave wrong results if (rem=(n1-q*d0)&BN_MASK2) < d0).
5443 *) Add support for various broken PKCS#8 formats, and command line
5444 options to produce them.
5447 *) New functions BN_CTX_start(), BN_CTX_get() and BT_CTX_end() to
5448 get temporary BIGNUMs from a BN_CTX.
5451 *) Correct return values in BN_mod_exp_mont() and BN_mod_exp2_mont()
5455 *) Change the SSLeay_add_all_*() functions to OpenSSL_add_all_*() and
5456 include a #define from the old name to the new. The original intent
5457 was that statically linked binaries could for example just call
5458 SSLeay_add_all_ciphers() to just add ciphers to the table and not
5459 link with digests. This never worked becayse SSLeay_add_all_digests()
5460 and SSLeay_add_all_ciphers() were in the same source file so calling
5461 one would link with the other. They are now in separate source files.
5464 *) Add a new -notext option to 'ca' and a -pubkey option to 'spkac'.
5467 *) Use a less unusual form of the Miller-Rabin primality test (it used
5468 a binary algorithm for exponentiation integrated into the Miller-Rabin
5469 loop, our standard modexp algorithms are faster).
5472 *) Support for the EBCDIC character set completed.
5473 [Martin Kraemer <Martin.Kraemer@Mch.SNI.De>]
5475 *) Source code cleanups: use const where appropriate, eliminate casts,
5476 use void * instead of char * in lhash.
5479 *) Bugfix: ssl3_send_server_key_exchange was not restartable
5480 (the state was not changed to SSL3_ST_SW_KEY_EXCH_B, and because of
5481 this the server could overwrite ephemeral keys that the client
5485 *) Turn DSA_is_prime into a macro that calls BN_is_prime,
5486 using 50 iterations of the Rabin-Miller test.
5488 DSA_generate_parameters now uses BN_is_prime_fasttest (with 50
5489 iterations of the Rabin-Miller test as required by the appendix
5490 to FIPS PUB 186[-1]) instead of DSA_is_prime.
5491 As BN_is_prime_fasttest includes trial division, DSA parameter
5492 generation becomes much faster.
5494 This implies a change for the callback functions in DSA_is_prime
5495 and DSA_generate_parameters: The callback function is called once
5496 for each positive witness in the Rabin-Miller test, not just
5497 occasionally in the inner loop; and the parameters to the
5498 callback function now provide an iteration count for the outer
5499 loop rather than for the current invocation of the inner loop.
5500 DSA_generate_parameters additionally can call the callback
5501 function with an 'iteration count' of -1, meaning that a
5502 candidate has passed the trial division test (when q is generated
5503 from an application-provided seed, trial division is skipped).
5506 *) New function BN_is_prime_fasttest that optionally does trial
5507 division before starting the Rabin-Miller test and has
5508 an additional BN_CTX * argument (whereas BN_is_prime always
5509 has to allocate at least one BN_CTX).
5510 'callback(1, -1, cb_arg)' is called when a number has passed the
5511 trial division stage.
5514 *) Fix for bug in CRL encoding. The validity dates weren't being handled
5518 *) New -pkcs12 option to CA.pl script to write out a PKCS#12 file.
5521 *) New function BN_pseudo_rand().
5524 *) Clean up BN_mod_mul_montgomery(): replace the broken (and unreadable)
5525 bignum version of BN_from_montgomery() with the working code from
5526 SSLeay 0.9.0 (the word based version is faster anyway), and clean up
5530 *) Avoid a race condition in s2_clnt.c (function get_server_hello) that
5531 made it impossible to use the same SSL_SESSION data structure in
5532 SSL2 clients in multiple threads.
5535 *) The return value of RAND_load_file() no longer counts bytes obtained
5536 by stat(). RAND_load_file(..., -1) is new and uses the complete file
5537 to seed the PRNG (previously an explicit byte count was required).
5538 [Ulf Möller, Bodo Möller]
5540 *) Clean up CRYPTO_EX_DATA functions, some of these didn't have prototypes
5541 used (char *) instead of (void *) and had casts all over the place.
5544 *) Make BN_generate_prime() return NULL on error if ret!=NULL.
5547 *) Retain source code compatibility for BN_prime_checks macro:
5548 BN_is_prime(..., BN_prime_checks, ...) now uses
5549 BN_prime_checks_for_size to determine the appropriate number of
5550 Rabin-Miller iterations.
5553 *) Diffie-Hellman uses "safe" primes: DH_check() return code renamed to
5554 DH_CHECK_P_NOT_SAFE_PRIME.
5555 (Check if this is true? OpenPGP calls them "strong".)
5558 *) Merge the functionality of "dh" and "gendh" programs into a new program
5559 "dhparam". The old programs are retained for now but will handle DH keys
5560 (instead of parameters) in future.
5563 *) Make the ciphers, s_server and s_client programs check the return values
5564 when a new cipher list is set.
5567 *) Enhance the SSL/TLS cipher mechanism to correctly handle the TLS 56bit
5568 ciphers. Before when the 56bit ciphers were enabled the sorting was
5571 The syntax for the cipher sorting has been extended to support sorting by
5572 cipher-strength (using the strength_bits hard coded in the tables).
5573 The new command is "@STRENGTH" (see also doc/apps/ciphers.pod).
5575 Fix a bug in the cipher-command parser: when supplying a cipher command
5576 string with an "undefined" symbol (neither command nor alphanumeric
5577 [A-Za-z0-9], ssl_set_cipher_list used to hang in an endless loop. Now
5578 an error is flagged.
5580 Due to the strength-sorting extension, the code of the
5581 ssl_create_cipher_list() function was completely rearranged. I hope that
5582 the readability was also increased :-)
5583 [Lutz Jaenicke <Lutz.Jaenicke@aet.TU-Cottbus.DE>]
5585 *) Minor change to 'x509' utility. The -CAcreateserial option now uses 1
5586 for the first serial number and places 2 in the serial number file. This
5587 avoids problems when the root CA is created with serial number zero and
5588 the first user certificate has the same issuer name and serial number
5592 *) Fixes to X509_ATTRIBUTE utilities, change the 'req' program so it uses
5593 the new code. Add documentation for this stuff.
5596 *) Changes to X509_ATTRIBUTE utilities. These have been renamed from
5597 X509_*() to X509at_*() on the grounds that they don't handle X509
5598 structures and behave in an analagous way to the X509v3 functions:
5599 they shouldn't be called directly but wrapper functions should be used
5602 So we also now have some wrapper functions that call the X509at functions
5603 when passed certificate requests. (TO DO: similar things can be done with
5604 PKCS#7 signed and unsigned attributes, PKCS#12 attributes and a few other
5605 things. Some of these need some d2i or i2d and print functionality
5606 because they handle more complex structures.)
5609 *) Add missing #ifndefs that caused missing symbols when building libssl
5610 as a shared library without RSA. Use #ifndef NO_SSL2 instead of
5611 NO_RSA in ssl/s2*.c.
5612 [Kris Kennaway <kris@hub.freebsd.org>, modified by Ulf Möller]
5614 *) Precautions against using the PRNG uninitialized: RAND_bytes() now
5615 has a return value which indicates the quality of the random data
5616 (1 = ok, 0 = not seeded). Also an error is recorded on the thread's
5617 error queue. New function RAND_pseudo_bytes() generates output that is
5618 guaranteed to be unique but not unpredictable. RAND_add is like
5619 RAND_seed, but takes an extra argument for an entropy estimate
5620 (RAND_seed always assumes full entropy).
5623 *) Do more iterations of Rabin-Miller probable prime test (specifically,
5624 3 for 1024-bit primes, 6 for 512-bit primes, 12 for 256-bit primes
5625 instead of only 2 for all lengths; see BN_prime_checks_for_size definition
5626 in crypto/bn/bn_prime.c for the complete table). This guarantees a
5627 false-positive rate of at most 2^-80 for random input.
5630 *) Rewrite ssl3_read_n (ssl/s3_pkt.c) avoiding a couple of bugs.
5633 *) New function X509_CTX_rget_chain() (renamed to X509_CTX_get1_chain
5634 in the 0.9.5 release), this returns the chain
5635 from an X509_CTX structure with a dup of the stack and all
5636 the X509 reference counts upped: so the stack will exist
5637 after X509_CTX_cleanup() has been called. Modify pkcs12.c
5640 Also make SSL_SESSION_print() print out the verify return
5644 *) Add manpage for the pkcs12 command. Also change the default
5645 behaviour so MAC iteration counts are used unless the new
5646 -nomaciter option is used. This improves file security and
5647 only older versions of MSIE (4.0 for example) need it.
5650 *) Honor the no-xxx Configure options when creating .DEF files.
5653 *) Add PKCS#10 attributes to field table: challengePassword,
5654 unstructuredName and unstructuredAddress. These are taken from
5655 draft PKCS#9 v2.0 but are compatible with v1.2 provided no
5656 international characters are used.
5658 More changes to X509_ATTRIBUTE code: allow the setting of types
5659 based on strings. Remove the 'loc' parameter when adding
5660 attributes because these will be a SET OF encoding which is sorted
5664 *) Initial changes to the 'req' utility to allow request generation
5665 automation. This will allow an application to just generate a template
5666 file containing all the field values and have req construct the
5669 Initial support for X509_ATTRIBUTE handling. Stacks of these are
5670 used all over the place including certificate requests and PKCS#7
5671 structures. They are currently handled manually where necessary with
5672 some primitive wrappers for PKCS#7. The new functions behave in a
5673 manner analogous to the X509 extension functions: they allow
5674 attributes to be looked up by NID and added.
5676 Later something similar to the X509V3 code would be desirable to
5677 automatically handle the encoding, decoding and printing of the
5678 more complex types. The string types like challengePassword can
5679 be handled by the string table functions.
5681 Also modified the multi byte string table handling. Now there is
5682 a 'global mask' which masks out certain types. The table itself
5683 can use the flag STABLE_NO_MASK to ignore the mask setting: this
5684 is useful when for example there is only one permissible type
5685 (as in countryName) and using the mask might result in no valid
5689 *) Clean up 'Finished' handling, and add functions SSL_get_finished and
5690 SSL_get_peer_finished to allow applications to obtain the latest
5691 Finished messages sent to the peer or expected from the peer,
5692 respectively. (SSL_get_peer_finished is usually the Finished message
5693 actually received from the peer, otherwise the protocol will be aborted.)
5695 As the Finished message are message digests of the complete handshake
5696 (with a total of 192 bits for TLS 1.0 and more for SSL 3.0), they can
5697 be used for external authentication procedures when the authentication
5698 provided by SSL/TLS is not desired or is not enough.
5701 *) Enhanced support for Alpha Linux is added. Now ./config checks if
5702 the host supports BWX extension and if Compaq C is present on the
5703 $PATH. Just exploiting of the BWX extension results in 20-30%
5704 performance kick for some algorithms, e.g. DES and RC4 to mention
5705 a couple. Compaq C in turn generates ~20% faster code for MD5 and
5709 *) Add support for MS "fast SGC". This is arguably a violation of the
5710 SSL3/TLS protocol. Netscape SGC does two handshakes: the first with
5711 weak crypto and after checking the certificate is SGC a second one
5712 with strong crypto. MS SGC stops the first handshake after receiving
5713 the server certificate message and sends a second client hello. Since
5714 a server will typically do all the time consuming operations before
5715 expecting any further messages from the client (server key exchange
5716 is the most expensive) there is little difference between the two.
5718 To get OpenSSL to support MS SGC we have to permit a second client
5719 hello message after we have sent server done. In addition we have to
5720 reset the MAC if we do get this second client hello.
5723 *) Add a function 'd2i_AutoPrivateKey()' this will automatically decide
5724 if a DER encoded private key is RSA or DSA traditional format. Changed
5725 d2i_PrivateKey_bio() to use it. This is only needed for the "traditional"
5726 format DER encoded private key. Newer code should use PKCS#8 format which
5727 has the key type encoded in the ASN1 structure. Added DER private key
5728 support to pkcs8 application.
5731 *) SSL 3/TLS 1 servers now don't request certificates when an anonymous
5732 ciphersuites has been selected (as required by the SSL 3/TLS 1
5733 specifications). Exception: When SSL_VERIFY_FAIL_IF_NO_PEER_CERT
5734 is set, we interpret this as a request to violate the specification
5735 (the worst that can happen is a handshake failure, and 'correct'
5736 behaviour would result in a handshake failure anyway).
5739 *) In SSL_CTX_add_session, take into account that there might be multiple
5740 SSL_SESSION structures with the same session ID (e.g. when two threads
5741 concurrently obtain them from an external cache).
5742 The internal cache can handle only one SSL_SESSION with a given ID,
5743 so if there's a conflict, we now throw out the old one to achieve
5747 *) Add OIDs for idea and blowfish in CBC mode. This will allow both
5748 to be used in PKCS#5 v2.0 and S/MIME. Also add checking to
5749 some routines that use cipher OIDs: some ciphers do not have OIDs
5750 defined and so they cannot be used for S/MIME and PKCS#5 v2.0 for
5754 *) Simplify the trust setting structure and code. Now we just have
5755 two sequences of OIDs for trusted and rejected settings. These will
5756 typically have values the same as the extended key usage extension
5757 and any application specific purposes.
5759 The trust checking code now has a default behaviour: it will just
5760 check for an object with the same NID as the passed id. Functions can
5761 be provided to override either the default behaviour or the behaviour
5762 for a given id. SSL client, server and email already have functions
5763 in place for compatibility: they check the NID and also return "trusted"
5764 if the certificate is self signed.
5767 *) Add d2i,i2d bio/fp functions for PrivateKey: these convert the
5768 traditional format into an EVP_PKEY structure.
5771 *) Add a password callback function PEM_cb() which either prompts for
5772 a password if usr_data is NULL or otherwise assumes it is a null
5773 terminated password. Allow passwords to be passed on command line
5774 environment or config files in a few more utilities.
5777 *) Add a bunch of DER and PEM functions to handle PKCS#8 format private
5778 keys. Add some short names for PKCS#8 PBE algorithms and allow them
5779 to be specified on the command line for the pkcs8 and pkcs12 utilities.
5780 Update documentation.
5783 *) Support for ASN1 "NULL" type. This could be handled before by using
5784 ASN1_TYPE but there wasn't any function that would try to read a NULL
5785 and produce an error if it couldn't. For compatibility we also have
5786 ASN1_NULL_new() and ASN1_NULL_free() functions but these are faked and
5787 don't allocate anything because they don't need to.
5790 *) Initial support for MacOS is now provided. Examine INSTALL.MacOS
5792 [Andy Polyakov, Roy Woods <roy@centicsystems.ca>]
5794 *) Rebuild of the memory allocation routines used by OpenSSL code and
5795 possibly others as well. The purpose is to make an interface that
5796 provide hooks so anyone can build a separate set of allocation and
5797 deallocation routines to be used by OpenSSL, for example memory
5798 pool implementations, or something else, which was previously hard
5799 since Malloc(), Realloc() and Free() were defined as macros having
5800 the values malloc, realloc and free, respectively (except for Win32
5801 compilations). The same is provided for memory debugging code.
5802 OpenSSL already comes with functionality to find memory leaks, but
5803 this gives people a chance to debug other memory problems.
5805 With these changes, a new set of functions and macros have appeared:
5807 CRYPTO_set_mem_debug_functions() [F]
5808 CRYPTO_get_mem_debug_functions() [F]
5809 CRYPTO_dbg_set_options() [F]
5810 CRYPTO_dbg_get_options() [F]
5811 CRYPTO_malloc_debug_init() [M]
5813 The memory debug functions are NULL by default, unless the library
5814 is compiled with CRYPTO_MDEBUG or friends is defined. If someone
5815 wants to debug memory anyway, CRYPTO_malloc_debug_init() (which
5816 gives the standard debugging functions that come with OpenSSL) or
5817 CRYPTO_set_mem_debug_functions() (tells OpenSSL to use functions
5818 provided by the library user) must be used. When the standard
5819 debugging functions are used, CRYPTO_dbg_set_options can be used to
5820 request additional information:
5821 CRYPTO_dbg_set_options(V_CYRPTO_MDEBUG_xxx) corresponds to setting
5822 the CRYPTO_MDEBUG_xxx macro when compiling the library.
5824 Also, things like CRYPTO_set_mem_functions will always give the
5825 expected result (the new set of functions is used for allocation
5826 and deallocation) at all times, regardless of platform and compiler
5829 To finish it up, some functions that were never use in any other
5830 way than through macros have a new API and new semantic:
5833 CRYPTO_dbg_realloc()
5836 All macros of value have retained their old syntax.
5837 [Richard Levitte and Bodo Moeller]
5839 *) Some S/MIME fixes. The OID for SMIMECapabilities was wrong, the
5840 ordering of SMIMECapabilities wasn't in "strength order" and there
5841 was a missing NULL in the AlgorithmIdentifier for the SHA1 signature
5845 *) Some ASN1 types with illegal zero length encoding (INTEGER,
5846 ENUMERATED and OBJECT IDENTIFIER) choked the ASN1 routines.
5847 [Frans Heymans <fheymans@isaserver.be>, modified by Steve Henson]
5849 *) Merge in my S/MIME library for OpenSSL. This provides a simple
5850 S/MIME API on top of the PKCS#7 code, a MIME parser (with enough
5851 functionality to handle multipart/signed properly) and a utility
5852 called 'smime' to call all this stuff. This is based on code I
5853 originally wrote for Celo who have kindly allowed it to be
5854 included in OpenSSL.
5857 *) Add variants des_set_key_checked and des_set_key_unchecked of
5858 des_set_key (aka des_key_sched). Global variable des_check_key
5859 decides which of these is called by des_set_key; this way
5860 des_check_key behaves as it always did, but applications and
5861 the library itself, which was buggy for des_check_key == 1,
5862 have a cleaner way to pick the version they need.
5865 *) New function PKCS12_newpass() which changes the password of a
5869 *) Modify X509_TRUST and X509_PURPOSE so it also uses a static and
5870 dynamic mix. In both cases the ids can be used as an index into the
5871 table. Also modified the X509_TRUST_add() and X509_PURPOSE_add()
5872 functions so they accept a list of the field values and the
5873 application doesn't need to directly manipulate the X509_TRUST
5877 *) Modify the ASN1_STRING_TABLE stuff so it also uses bsearch and doesn't
5881 *) Modify the way the V3 extension code looks up extensions. This now
5882 works in a similar way to the object code: we have some "standard"
5883 extensions in a static table which is searched with OBJ_bsearch()
5884 and the application can add dynamic ones if needed. The file
5885 crypto/x509v3/ext_dat.h now has the info: this file needs to be
5886 updated whenever a new extension is added to the core code and kept
5887 in ext_nid order. There is a simple program 'tabtest.c' which checks
5888 this. New extensions are not added too often so this file can readily
5889 be maintained manually.
5891 There are two big advantages in doing things this way. The extensions
5892 can be looked up immediately and no longer need to be "added" using
5893 X509V3_add_standard_extensions(): this function now does nothing.
5894 [Side note: I get *lots* of email saying the extension code doesn't
5895 work because people forget to call this function]
5896 Also no dynamic allocation is done unless new extensions are added:
5897 so if we don't add custom extensions there is no need to call
5898 X509V3_EXT_cleanup().
5901 *) Modify enc utility's salting as follows: make salting the default. Add a
5902 magic header, so unsalted files fail gracefully instead of just decrypting
5903 to garbage. This is because not salting is a big security hole, so people
5904 should be discouraged from doing it.
5907 *) Fixes and enhancements to the 'x509' utility. It allowed a message
5908 digest to be passed on the command line but it only used this
5909 parameter when signing a certificate. Modified so all relevant
5910 operations are affected by the digest parameter including the
5911 -fingerprint and -x509toreq options. Also -x509toreq choked if a
5912 DSA key was used because it didn't fix the digest.
5915 *) Initial certificate chain verify code. Currently tests the untrusted
5916 certificates for consistency with the verify purpose (which is set
5917 when the X509_STORE_CTX structure is set up) and checks the pathlength.
5919 There is a NO_CHAIN_VERIFY compilation option to keep the old behaviour:
5920 this is because it will reject chains with invalid extensions whereas
5921 every previous version of OpenSSL and SSLeay made no checks at all.
5923 Trust code: checks the root CA for the relevant trust settings. Trust
5924 settings have an initial value consistent with the verify purpose: e.g.
5925 if the verify purpose is for SSL client use it expects the CA to be
5926 trusted for SSL client use. However the default value can be changed to
5927 permit custom trust settings: one example of this would be to only trust
5928 certificates from a specific "secure" set of CAs.
5930 Also added X509_STORE_CTX_new() and X509_STORE_CTX_free() functions
5931 which should be used for version portability: especially since the
5932 verify structure is likely to change more often now.
5934 SSL integration. Add purpose and trust to SSL_CTX and SSL and functions
5935 to set them. If not set then assume SSL clients will verify SSL servers
5938 Two new options to the verify program: -untrusted allows a set of
5939 untrusted certificates to be passed in and -purpose which sets the
5940 intended purpose of the certificate. If a purpose is set then the
5941 new chain verify code is used to check extension consistency.
5944 *) Support for the authority information access extension.
5947 *) Modify RSA and DSA PEM read routines to transparently handle
5948 PKCS#8 format private keys. New *_PUBKEY_* functions that handle
5949 public keys in a format compatible with certificate
5950 SubjectPublicKeyInfo structures. Unfortunately there were already
5951 functions called *_PublicKey_* which used various odd formats so
5952 these are retained for compatibility: however the DSA variants were
5953 never in a public release so they have been deleted. Changed dsa/rsa
5954 utilities to handle the new format: note no releases ever handled public
5955 keys so we should be OK.
5957 The primary motivation for this change is to avoid the same fiasco
5958 that dogs private keys: there are several incompatible private key
5959 formats some of which are standard and some OpenSSL specific and
5960 require various evil hacks to allow partial transparent handling and
5961 even then it doesn't work with DER formats. Given the option anything
5962 other than PKCS#8 should be dumped: but the other formats have to
5963 stay in the name of compatibility.
5965 With public keys and the benefit of hindsight one standard format
5966 is used which works with EVP_PKEY, RSA or DSA structures: though
5967 it clearly returns an error if you try to read the wrong kind of key.
5969 Added a -pubkey option to the 'x509' utility to output the public key.
5970 Also rename the EVP_PKEY_get_*() to EVP_PKEY_rget_*()
5971 (renamed to EVP_PKEY_get1_*() in the OpenSSL 0.9.5 release) and add
5972 EVP_PKEY_rset_*() functions (renamed to EVP_PKEY_set1_*())
5973 that do the same as the EVP_PKEY_assign_*() except they up the
5974 reference count of the added key (they don't "swallow" the
5978 *) Fixes to crypto/x509/by_file.c the code to read in certificates and
5979 CRLs would fail if the file contained no certificates or no CRLs:
5980 added a new function to read in both types and return the number
5981 read: this means that if none are read it will be an error. The
5982 DER versions of the certificate and CRL reader would always fail
5983 because it isn't possible to mix certificates and CRLs in DER format
5984 without choking one or the other routine. Changed this to just read
5985 a certificate: this is the best we can do. Also modified the code
5986 in apps/verify.c to take notice of return codes: it was previously
5987 attempting to read in certificates from NULL pointers and ignoring
5988 any errors: this is one reason why the cert and CRL reader seemed
5989 to work. It doesn't check return codes from the default certificate
5990 routines: these may well fail if the certificates aren't installed.
5993 *) Code to support otherName option in GeneralName.
5996 *) First update to verify code. Change the verify utility
5997 so it warns if it is passed a self signed certificate:
5998 for consistency with the normal behaviour. X509_verify
5999 has been modified to it will now verify a self signed
6000 certificate if *exactly* the same certificate appears
6001 in the store: it was previously impossible to trust a
6002 single self signed certificate. This means that:
6003 openssl verify ss.pem
6004 now gives a warning about a self signed certificate but
6005 openssl verify -CAfile ss.pem ss.pem
6009 *) For servers, store verify_result in SSL_SESSION data structure
6010 (and add it to external session representation).
6011 This is needed when client certificate verifications fails,
6012 but an application-provided verification callback (set by
6013 SSL_CTX_set_cert_verify_callback) allows accepting the session
6014 anyway (i.e. leaves x509_store_ctx->error != X509_V_OK
6015 but returns 1): When the session is reused, we have to set
6016 ssl->verify_result to the appropriate error code to avoid
6018 [Bodo Moeller, problem pointed out by Lutz Jaenicke]
6020 *) Fix a bug in the new PKCS#7 code: it didn't consider the
6021 case in PKCS7_dataInit() where the signed PKCS7 structure
6022 didn't contain any existing data because it was being created.
6023 [Po-Cheng Chen <pocheng@nst.com.tw>, slightly modified by Steve Henson]
6025 *) Add a salt to the key derivation routines in enc.c. This
6026 forms the first 8 bytes of the encrypted file. Also add a
6027 -S option to allow a salt to be input on the command line.
6030 *) New function X509_cmp(). Oddly enough there wasn't a function
6031 to compare two certificates. We do this by working out the SHA1
6032 hash and comparing that. X509_cmp() will be needed by the trust
6036 *) SSL_get1_session() is like SSL_get_session(), but increments
6037 the reference count in the SSL_SESSION returned.
6038 [Geoff Thorpe <geoff@eu.c2.net>]
6040 *) Fix for 'req': it was adding a null to request attributes.
6041 Also change the X509_LOOKUP and X509_INFO code to handle
6042 certificate auxiliary information.
6045 *) Add support for 40 and 64 bit RC2 and RC4 algorithms: document
6049 *) Add the possibility to add extra information to the memory leak
6050 detecting output, to form tracebacks, showing from where each
6051 allocation was originated: CRYPTO_push_info("constant string") adds
6052 the string plus current file name and line number to a per-thread
6053 stack, CRYPTO_pop_info() does the obvious, CRYPTO_remove_all_info()
6054 is like calling CYRPTO_pop_info() until the stack is empty.
6055 Also updated memory leak detection code to be multi-thread-safe.
6058 *) Add options -text and -noout to pkcs7 utility and delete the
6059 encryption options which never did anything. Update docs.
6062 *) Add options to some of the utilities to allow the pass phrase
6063 to be included on either the command line (not recommended on
6064 OSes like Unix) or read from the environment. Update the
6065 manpages and fix a few bugs.
6068 *) Add a few manpages for some of the openssl commands.
6071 *) Fix the -revoke option in ca. It was freeing up memory twice,
6072 leaking and not finding already revoked certificates.
6075 *) Extensive changes to support certificate auxiliary information.
6076 This involves the use of X509_CERT_AUX structure and X509_AUX
6077 functions. An X509_AUX function such as PEM_read_X509_AUX()
6078 can still read in a certificate file in the usual way but it
6079 will also read in any additional "auxiliary information". By
6080 doing things this way a fair degree of compatibility can be
6081 retained: existing certificates can have this information added
6082 using the new 'x509' options.
6084 Current auxiliary information includes an "alias" and some trust
6085 settings. The trust settings will ultimately be used in enhanced
6086 certificate chain verification routines: currently a certificate
6087 can only be trusted if it is self signed and then it is trusted
6091 *) Fix assembler for Alpha (tested only on DEC OSF not Linux or *BSD).
6092 The problem was that one of the replacement routines had not been working
6093 since SSLeay releases. For now the offending routine has been replaced
6094 with non-optimised assembler. Even so, this now gives around 95%
6095 performance improvement for 1024 bit RSA signs.
6098 *) Hack to fix PKCS#7 decryption when used with some unorthodox RC2
6099 handling. Most clients have the effective key size in bits equal to
6100 the key length in bits: so a 40 bit RC2 key uses a 40 bit (5 byte) key.
6101 A few however don't do this and instead use the size of the decrypted key
6102 to determine the RC2 key length and the AlgorithmIdentifier to determine
6103 the effective key length. In this case the effective key length can still
6104 be 40 bits but the key length can be 168 bits for example. This is fixed
6105 by manually forcing an RC2 key into the EVP_PKEY structure because the
6106 EVP code can't currently handle unusual RC2 key sizes: it always assumes
6107 the key length and effective key length are equal.
6110 *) Add a bunch of functions that should simplify the creation of
6111 X509_NAME structures. Now you should be able to do:
6112 X509_NAME_add_entry_by_txt(nm, "CN", MBSTRING_ASC, "Steve", -1, -1, 0);
6113 and have it automatically work out the correct field type and fill in
6114 the structures. The more adventurous can try:
6115 X509_NAME_add_entry_by_txt(nm, field, MBSTRING_UTF8, str, -1, -1, 0);
6116 and it will (hopefully) work out the correct multibyte encoding.
6119 *) Change the 'req' utility to use the new field handling and multibyte
6120 copy routines. Before the DN field creation was handled in an ad hoc
6121 way in req, ca, and x509 which was rather broken and didn't support
6122 BMPStrings or UTF8Strings. Since some software doesn't implement
6123 BMPStrings or UTF8Strings yet, they can be enabled using the config file
6124 using the dirstring_type option. See the new comment in the default
6125 openssl.cnf for more info.
6128 *) Make crypto/rand/md_rand.c more robust:
6129 - Assure unique random numbers after fork().
6130 - Make sure that concurrent threads access the global counter and
6131 md serializably so that we never lose entropy in them
6132 or use exactly the same state in multiple threads.
6133 Access to the large state is not always serializable because
6134 the additional locking could be a performance killer, and
6135 md should be large enough anyway.
6138 *) New file apps/app_rand.c with commonly needed functionality
6139 for handling the random seed file.
6141 Use the random seed file in some applications that previously did not:
6143 dsaparam -genkey (which also ignored its '-rand' option),
6146 x509 (when signing).
6147 Except on systems with /dev/urandom, it is crucial to have a random
6148 seed file at least for key creation, DSA signing, and for DH exchanges;
6149 for RSA signatures we could do without one.
6151 gendh and gendsa (unlike genrsa) used to read only the first byte
6152 of each file listed in the '-rand' option. The function as previously
6153 found in genrsa is now in app_rand.c and is used by all programs
6154 that support '-rand'.
6157 *) In RAND_write_file, use mode 0600 for creating files;
6158 don't just chmod when it may be too late.
6161 *) Report an error from X509_STORE_load_locations
6162 when X509_LOOKUP_load_file or X509_LOOKUP_add_dir failed.
6165 *) New function ASN1_mbstring_copy() this copies a string in either
6166 ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
6167 into an ASN1_STRING type. A mask of permissible types is passed
6168 and it chooses the "minimal" type to use or an error if not type
6172 *) Add function equivalents to the various macros in asn1.h. The old
6173 macros are retained with an M_ prefix. Code inside the library can
6174 use the M_ macros. External code (including the openssl utility)
6175 should *NOT* in order to be "shared library friendly".
6178 *) Add various functions that can check a certificate's extensions
6179 to see if it usable for various purposes such as SSL client,
6180 server or S/MIME and CAs of these types. This is currently
6181 VERY EXPERIMENTAL but will ultimately be used for certificate chain
6182 verification. Also added a -purpose flag to x509 utility to
6183 print out all the purposes.
6186 *) Add a CRYPTO_EX_DATA to X509 certificate structure and associated
6190 *) New X509V3_{X509,CRL,REVOKED}_get_d2i() functions. These will search
6191 for, obtain and decode and extension and obtain its critical flag.
6192 This allows all the necessary extension code to be handled in a
6193 single function call.
6196 *) RC4 tune-up featuring 30-40% performance improvement on most RISC
6197 platforms. See crypto/rc4/rc4_enc.c for further details.
6200 *) New -noout option to asn1parse. This causes no output to be produced
6201 its main use is when combined with -strparse and -out to extract data
6202 from a file (which may not be in ASN.1 format).
6205 *) Fix for pkcs12 program. It was hashing an invalid certificate pointer
6206 when producing the local key id.
6207 [Richard Levitte <levitte@stacken.kth.se>]
6209 *) New option -dhparam in s_server. This allows a DH parameter file to be
6210 stated explicitly. If it is not stated then it tries the first server
6211 certificate file. The previous behaviour hard coded the filename
6215 *) Add -pubin and -pubout options to the rsa and dsa commands. These allow
6216 a public key to be input or output. For example:
6217 openssl rsa -in key.pem -pubout -out pubkey.pem
6218 Also added necessary DSA public key functions to handle this.
6221 *) Fix so PKCS7_dataVerify() doesn't crash if no certificates are contained
6222 in the message. This was handled by allowing
6223 X509_find_by_issuer_and_serial() to tolerate a NULL passed to it.
6224 [Steve Henson, reported by Sampo Kellomaki <sampo@mail.neuronio.pt>]
6226 *) Fix for bug in d2i_ASN1_bytes(): other ASN1 functions add an extra null
6227 to the end of the strings whereas this didn't. This would cause problems
6228 if strings read with d2i_ASN1_bytes() were later modified.
6229 [Steve Henson, reported by Arne Ansper <arne@ats.cyber.ee>]
6231 *) Fix for base64 decode bug. When a base64 bio reads only one line of
6232 data and it contains EOF it will end up returning an error. This is
6233 caused by input 46 bytes long. The cause is due to the way base64
6234 BIOs find the start of base64 encoded data. They do this by trying a
6235 trial decode on each line until they find one that works. When they
6236 do a flag is set and it starts again knowing it can pass all the
6237 data directly through the decoder. Unfortunately it doesn't reset
6238 the context it uses. This means that if EOF is reached an attempt
6239 is made to pass two EOFs through the context and this causes the
6240 resulting error. This can also cause other problems as well. As is
6241 usual with these problems it takes *ages* to find and the fix is
6242 trivial: move one line.
6243 [Steve Henson, reported by ian@uns.ns.ac.yu (Ivan Nejgebauer) ]
6245 *) Ugly workaround to get s_client and s_server working under Windows. The
6246 old code wouldn't work because it needed to select() on sockets and the
6247 tty (for keypresses and to see if data could be written). Win32 only
6248 supports select() on sockets so we select() with a 1s timeout on the
6249 sockets and then see if any characters are waiting to be read, if none
6250 are present then we retry, we also assume we can always write data to
6251 the tty. This isn't nice because the code then blocks until we've
6252 received a complete line of data and it is effectively polling the
6253 keyboard at 1s intervals: however it's quite a bit better than not
6254 working at all :-) A dedicated Windows application might handle this
6255 with an event loop for example.
6258 *) Enhance RSA_METHOD structure. Now there are two extra methods, rsa_sign
6259 and rsa_verify. When the RSA_FLAGS_SIGN_VER option is set these functions
6260 will be called when RSA_sign() and RSA_verify() are used. This is useful
6261 if rsa_pub_dec() and rsa_priv_enc() equivalents are not available.
6262 For this to work properly RSA_public_decrypt() and RSA_private_encrypt()
6263 should *not* be used: RSA_sign() and RSA_verify() must be used instead.
6264 This necessitated the support of an extra signature type NID_md5_sha1
6265 for SSL signatures and modifications to the SSL library to use it instead
6266 of calling RSA_public_decrypt() and RSA_private_encrypt().
6269 *) Add new -verify -CAfile and -CApath options to the crl program, these
6270 will lookup a CRL issuers certificate and verify the signature in a
6271 similar way to the verify program. Tidy up the crl program so it
6272 no longer accesses structures directly. Make the ASN1 CRL parsing a bit
6273 less strict. It will now permit CRL extensions even if it is not
6274 a V2 CRL: this will allow it to tolerate some broken CRLs.
6277 *) Initialize all non-automatic variables each time one of the openssl
6278 sub-programs is started (this is necessary as they may be started
6279 multiple times from the "OpenSSL>" prompt).
6280 [Lennart Bang, Bodo Moeller]
6282 *) Preliminary compilation option RSA_NULL which disables RSA crypto without
6283 removing all other RSA functionality (this is what NO_RSA does). This
6284 is so (for example) those in the US can disable those operations covered
6285 by the RSA patent while allowing storage and parsing of RSA keys and RSA
6289 *) Non-copying interface to BIO pairs.
6290 (still largely untested)
6293 *) New function ANS1_tag2str() to convert an ASN1 tag to a descriptive
6294 ASCII string. This was handled independently in various places before.
6297 *) New functions UTF8_getc() and UTF8_putc() that parse and generate
6298 UTF8 strings a character at a time.
6301 *) Use client_version from client hello to select the protocol
6302 (s23_srvr.c) and for RSA client key exchange verification
6303 (s3_srvr.c), as required by the SSL 3.0/TLS 1.0 specifications.
6306 *) Add various utility functions to handle SPKACs, these were previously
6307 handled by poking round in the structure internals. Added new function
6308 NETSCAPE_SPKI_print() to print out SPKAC and a new utility 'spkac' to
6309 print, verify and generate SPKACs. Based on an original idea from
6310 Massimiliano Pala <madwolf@comune.modena.it> but extensively modified.
6313 *) RIPEMD160 is operational on all platforms and is back in 'make test'.
6316 *) Allow the config file extension section to be overwritten on the
6317 command line. Based on an original idea from Massimiliano Pala
6318 <madwolf@comune.modena.it>. The new option is called -extensions
6319 and can be applied to ca, req and x509. Also -reqexts to override
6320 the request extensions in req and -crlexts to override the crl extensions
6324 *) Add new feature to the SPKAC handling in ca. Now you can include
6325 the same field multiple times by preceding it by "XXXX." for example:
6328 this is the same syntax as used in the req config file.
6331 *) Allow certificate extensions to be added to certificate requests. These
6332 are specified in a 'req_extensions' option of the req section of the
6333 config file. They can be printed out with the -text option to req but
6334 are otherwise ignored at present.
6337 *) Fix a horrible bug in enc_read() in crypto/evp/bio_enc.c: if the first
6338 data read consists of only the final block it would not decrypted because
6339 EVP_CipherUpdate() would correctly report zero bytes had been decrypted.
6340 A misplaced 'break' also meant the decrypted final block might not be
6341 copied until the next read.
6344 *) Initial support for DH_METHOD. Again based on RSA_METHOD. Also added
6345 a few extra parameters to the DH structure: these will be useful if
6346 for example we want the value of 'q' or implement X9.42 DH.
6349 *) Initial support for DSA_METHOD. This is based on the RSA_METHOD and
6350 provides hooks that allow the default DSA functions or functions on a
6351 "per key" basis to be replaced. This allows hardware acceleration and
6352 hardware key storage to be handled without major modification to the
6353 library. Also added low level modexp hooks and CRYPTO_EX structure and
6354 associated functions.
6357 *) Add a new flag to memory BIOs, BIO_FLAG_MEM_RDONLY. This marks the BIO
6358 as "read only": it can't be written to and the buffer it points to will
6359 not be freed. Reading from a read only BIO is much more efficient than
6360 a normal memory BIO. This was added because there are several times when
6361 an area of memory needs to be read from a BIO. The previous method was
6362 to create a memory BIO and write the data to it, this results in two
6363 copies of the data and an O(n^2) reading algorithm. There is a new
6364 function BIO_new_mem_buf() which creates a read only memory BIO from
6365 an area of memory. Also modified the PKCS#7 routines to use read only
6369 *) Bugfix: ssl23_get_client_hello did not work properly when called in
6370 state SSL23_ST_SR_CLNT_HELLO_B, i.e. when the first 7 bytes of
6371 a SSLv2-compatible client hello for SSLv3 or TLSv1 could be read,
6372 but a retry condition occured while trying to read the rest.
6375 *) The PKCS7_ENC_CONTENT_new() function was setting the content type as
6376 NID_pkcs7_encrypted by default: this was wrong since this should almost
6377 always be NID_pkcs7_data. Also modified the PKCS7_set_type() to handle
6378 the encrypted data type: this is a more sensible place to put it and it
6379 allows the PKCS#12 code to be tidied up that duplicated this
6383 *) Changed obj_dat.pl script so it takes its input and output files on
6384 the command line. This should avoid shell escape redirection problems
6388 *) Initial support for certificate extension requests, these are included
6389 in things like Xenroll certificate requests. Included functions to allow
6390 extensions to be obtained and added.
6393 *) -crlf option to s_client and s_server for sending newlines as
6394 CRLF (as required by many protocols).
6397 Changes between 0.9.3a and 0.9.4 [09 Aug 1999]
6399 *) Install libRSAglue.a when OpenSSL is built with RSAref.
6400 [Ralf S. Engelschall]
6402 *) A few more ``#ifndef NO_FP_API / #endif'' pairs for consistency.
6403 [Andrija Antonijevic <TheAntony2@bigfoot.com>]
6405 *) Fix -startdate and -enddate (which was missing) arguments to 'ca'
6409 *) New function DSA_dup_DH, which duplicates DSA parameters/keys as
6410 DH parameters/keys (q is lost during that conversion, but the resulting
6411 DH parameters contain its length).
6413 For 1024-bit p, DSA_generate_parameters followed by DSA_dup_DH is
6414 much faster than DH_generate_parameters (which creates parameters
6415 where p = 2*q + 1), and also the smaller q makes DH computations
6416 much more efficient (160-bit exponentiation instead of 1024-bit
6417 exponentiation); so this provides a convenient way to support DHE
6418 ciphersuites in SSL/TLS servers (see ssl/ssltest.c). It is of
6419 utter importance to use
6420 SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6422 SSL_set_options(s_ctx, SSL_OP_SINGLE_DH_USE);
6423 when such DH parameters are used, because otherwise small subgroup
6424 attacks may become possible!
6427 *) Avoid memory leak in i2d_DHparams.
6430 *) Allow the -k option to be used more than once in the enc program:
6431 this allows the same encrypted message to be read by multiple recipients.
6434 *) New function OBJ_obj2txt(buf, buf_len, a, no_name), this converts
6435 an ASN1_OBJECT to a text string. If the "no_name" parameter is set then
6436 it will always use the numerical form of the OID, even if it has a short
6440 *) Added an extra RSA flag: RSA_FLAG_EXT_PKEY. Previously the rsa_mod_exp
6441 method only got called if p,q,dmp1,dmq1,iqmp components were present,
6442 otherwise bn_mod_exp was called. In the case of hardware keys for example
6443 no private key components need be present and it might store extra data
6444 in the RSA structure, which cannot be accessed from bn_mod_exp.
6445 By setting RSA_FLAG_EXT_PKEY rsa_mod_exp will always be called for
6446 private key operations.
6449 *) Added support for SPARC Linux.
6452 *) pem_password_cb function type incompatibly changed from
6453 typedef int pem_password_cb(char *buf, int size, int rwflag);
6455 ....(char *buf, int size, int rwflag, void *userdata);
6456 so that applications can pass data to their callbacks:
6457 The PEM[_ASN1]_{read,write}... functions and macros now take an
6458 additional void * argument, which is just handed through whenever
6459 the password callback is called.
6460 [Damien Miller <dmiller@ilogic.com.au>; tiny changes by Bodo Moeller]
6462 New function SSL_CTX_set_default_passwd_cb_userdata.
6464 Compatibility note: As many C implementations push function arguments
6465 onto the stack in reverse order, the new library version is likely to
6466 interoperate with programs that have been compiled with the old
6467 pem_password_cb definition (PEM_whatever takes some data that
6468 happens to be on the stack as its last argument, and the callback
6469 just ignores this garbage); but there is no guarantee whatsoever that
6472 *) The -DPLATFORM="\"$(PLATFORM)\"" definition and the similar -DCFLAGS=...
6473 (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
6474 problems not only on Windows, but also on some Unix platforms.
6475 To avoid problematic command lines, these definitions are now in an
6476 auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
6477 for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
6480 *) MIPS III/IV assembler module is reimplemented.
6483 *) More DES library cleanups: remove references to srand/rand and
6484 delete an unused file.
6487 *) Add support for the the free Netwide assembler (NASM) under Win32,
6488 since not many people have MASM (ml) and it can be hard to obtain.
6489 This is currently experimental but it seems to work OK and pass all
6490 the tests. Check out INSTALL.W32 for info.
6493 *) Fix memory leaks in s3_clnt.c: All non-anonymous SSL3/TLS1 connections
6494 without temporary keys kept an extra copy of the server key,
6495 and connections with temporary keys did not free everything in case
6499 *) New function RSA_check_key and new openssl rsa option -check
6500 for verifying the consistency of RSA keys.
6501 [Ulf Moeller, Bodo Moeller]
6503 *) Various changes to make Win32 compile work:
6504 1. Casts to avoid "loss of data" warnings in p5_crpt2.c
6505 2. Change unsigned int to int in b_dump.c to avoid "signed/unsigned
6506 comparison" warnings.
6507 3. Add sk_<TYPE>_sort to DEF file generator and do make update.
6510 *) Add a debugging option to PKCS#5 v2 key generation function: when
6511 you #define DEBUG_PKCS5V2 passwords, salts, iteration counts and
6512 derived keys are printed to stderr.
6515 *) Copy the flags in ASN1_STRING_dup().
6516 [Roman E. Pavlov <pre@mo.msk.ru>]
6518 *) The x509 application mishandled signing requests containing DSA
6519 keys when the signing key was also DSA and the parameters didn't match.
6521 It was supposed to omit the parameters when they matched the signing key:
6522 the verifying software was then supposed to automatically use the CA's
6523 parameters if they were absent from the end user certificate.
6525 Omitting parameters is no longer recommended. The test was also
6526 the wrong way round! This was probably due to unusual behaviour in
6527 EVP_cmp_parameters() which returns 1 if the parameters match.
6528 This meant that parameters were omitted when they *didn't* match and
6529 the certificate was useless. Certificates signed with 'ca' didn't have
6531 [Steve Henson, reported by Doug Erickson <Doug.Erickson@Part.NET>]
6533 *) Memory leak checking (-DCRYPTO_MDEBUG) had some problems.
6534 The interface is as follows:
6535 Applications can use
6536 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON) aka MemCheck_start(),
6537 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_OFF) aka MemCheck_stop();
6538 "off" is now the default.
6539 The library internally uses
6540 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_DISABLE) aka MemCheck_off(),
6541 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ENABLE) aka MemCheck_on()
6542 to disable memory-checking temporarily.
6544 Some inconsistent states that previously were possible (and were
6545 even the default) are now avoided.
6547 -DCRYPTO_MDEBUG_TIME is new and additionally stores the current time
6548 with each memory chunk allocated; this is occasionally more helpful
6549 than just having a counter.
6551 -DCRYPTO_MDEBUG_THREAD is also new and adds the thread ID.
6553 -DCRYPTO_MDEBUG_ALL enables all of the above, plus any future
6557 *) Introduce "mode" for SSL structures (with defaults in SSL_CTX),
6558 which largely parallels "options", but is for changing API behaviour,
6559 whereas "options" are about protocol behaviour.
6560 Initial "mode" flags are:
6562 SSL_MODE_ENABLE_PARTIAL_WRITE Allow SSL_write to report success when
6563 a single record has been written.
6564 SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER Don't insist that SSL_write
6565 retries use the same buffer location.
6566 (But all of the contents must be
6570 *) Bugfix: SSL_set_options ignored its parameter, only SSL_CTX_set_options
6573 *) Fix problems with no-hmac etc.
6574 [Ulf Möller, pointed out by Brian Wellington <bwelling@tislabs.com>]
6576 *) New functions RSA_get_default_method(), RSA_set_method() and
6577 RSA_get_method(). These allows replacement of RSA_METHODs without having
6578 to mess around with the internals of an RSA structure.
6581 *) Fix memory leaks in DSA_do_sign and DSA_is_prime.
6582 Also really enable memory leak checks in openssl.c and in some
6584 [Chad C. Mulligan, Bodo Moeller]
6586 *) Fix a bug in d2i_ASN1_INTEGER() and i2d_ASN1_INTEGER() which can mess
6587 up the length of negative integers. This has now been simplified to just
6588 store the length when it is first determined and use it later, rather
6589 than trying to keep track of where data is copied and updating it to
6591 [Steve Henson, reported by Brien Wheeler
6592 <bwheeler@authentica-security.com>]
6594 *) Add a new function PKCS7_signatureVerify. This allows the verification
6595 of a PKCS#7 signature but with the signing certificate passed to the
6596 function itself. This contrasts with PKCS7_dataVerify which assumes the
6597 certificate is present in the PKCS#7 structure. This isn't always the
6598 case: certificates can be omitted from a PKCS#7 structure and be
6599 distributed by "out of band" means (such as a certificate database).
6602 *) Complete the PEM_* macros with DECLARE_PEM versions to replace the
6603 function prototypes in pem.h, also change util/mkdef.pl to add the
6604 necessary function names.
6607 *) mk1mf.pl (used by Windows builds) did not properly read the
6608 options set by Configure in the top level Makefile, and Configure
6609 was not even able to write more than one option correctly.
6610 Fixed, now "no-idea no-rc5 -DCRYPTO_MDEBUG" etc. works as intended.
6613 *) New functions CONF_load_bio() and CONF_load_fp() to allow a config
6614 file to be loaded from a BIO or FILE pointer. The BIO version will
6615 for example allow memory BIOs to contain config info.
6618 *) New function "CRYPTO_num_locks" that returns CRYPTO_NUM_LOCKS.
6619 Whoever hopes to achieve shared-library compatibility across versions
6620 must use this, not the compile-time macro.
6621 (Exercise 0.9.4: Which is the minimum library version required by
6623 Note: All this applies only to multi-threaded programs, others don't
6627 *) Add missing case to s3_clnt.c state machine -- one of the new SSL tests
6628 through a BIO pair triggered the default case, i.e.
6629 SSLerr(...,SSL_R_UNKNOWN_STATE).
6632 *) New "BIO pair" concept (crypto/bio/bss_bio.c) so that applications
6633 can use the SSL library even if none of the specific BIOs is
6637 *) Fix a bug in i2d_DSAPublicKey() which meant it returned the wrong value
6638 for the encoded length.
6639 [Jeon KyoungHo <khjeon@sds.samsung.co.kr>]
6641 *) Add initial documentation of the X509V3 functions.
6644 *) Add a new pair of functions PEM_write_PKCS8PrivateKey() and
6645 PEM_write_bio_PKCS8PrivateKey() that are equivalent to
6646 PEM_write_PrivateKey() and PEM_write_bio_PrivateKey() but use the more
6647 secure PKCS#8 private key format with a high iteration count.
6650 *) Fix determination of Perl interpreter: A perl or perl5
6651 _directory_ in $PATH was also accepted as the interpreter.
6652 [Ralf S. Engelschall]
6654 *) Fix demos/sign/sign.c: well there wasn't anything strictly speaking
6655 wrong with it but it was very old and did things like calling
6656 PEM_ASN1_read() directly and used MD5 for the hash not to mention some
6660 *) Fix demos/selfsign.c: it used obsolete and deleted functions, changed
6661 to use the new extension code.
6664 *) Implement the PEM_read/PEM_write functions in crypto/pem/pem_all.c
6665 with macros. This should make it easier to change their form, add extra
6666 arguments etc. Fix a few PEM prototypes which didn't have cipher as a
6670 *) Add to configuration table a new entry that can specify an alternative
6671 name for unistd.h (for pre-POSIX systems); we need this for NeXTstep,
6672 according to Mark Crispin <MRC@Panda.COM>.
6676 *) DES CBC did not update the IV. Weird.
6679 des_cbc_encrypt does not update the IV, but des_ncbc_encrypt does.
6680 Changing the behaviour of the former might break existing programs --
6681 where IV updating is needed, des_ncbc_encrypt can be used.
6684 *) When bntest is run from "make test" it drives bc to check its
6685 calculations, as well as internally checking them. If an internal check
6686 fails, it needs to cause bc to give a non-zero result or make test carries
6687 on without noticing the failure. Fixed.
6690 *) DES library cleanups.
6693 *) Add support for PKCS#5 v2.0 PBE algorithms. This will permit PKCS#8 to be
6694 used with any cipher unlike PKCS#5 v1.5 which can at most handle 64 bit
6695 ciphers. NOTE: although the key derivation function has been verified
6696 against some published test vectors it has not been extensively tested
6697 yet. Added a -v2 "cipher" option to pkcs8 application to allow the use
6701 *) Instead of "mkdir -p", which is not fully portable, use new
6702 Perl script "util/mkdir-p.pl".
6705 *) Rewrite the way password based encryption (PBE) is handled. It used to
6706 assume that the ASN1 AlgorithmIdentifier parameter was a PBEParameter
6707 structure. This was true for the PKCS#5 v1.5 and PKCS#12 PBE algorithms
6708 but doesn't apply to PKCS#5 v2.0 where it can be something else. Now
6709 the 'parameter' field of the AlgorithmIdentifier is passed to the
6710 underlying key generation function so it must do its own ASN1 parsing.
6711 This has also changed the EVP_PBE_CipherInit() function which now has a
6712 'parameter' argument instead of literal salt and iteration count values
6713 and the function EVP_PBE_ALGOR_CipherInit() has been deleted.
6716 *) Support for PKCS#5 v1.5 compatible password based encryption algorithms
6717 and PKCS#8 functionality. New 'pkcs8' application linked to openssl.
6718 Needed to change the PEM_STRING_EVP_PKEY value which was just "PRIVATE
6719 KEY" because this clashed with PKCS#8 unencrypted string. Since this
6720 value was just used as a "magic string" and not used directly its
6721 value doesn't matter.
6724 *) Introduce some semblance of const correctness to BN. Shame C doesn't
6728 *) "linux-sparc64" configuration (ultrapenguin).
6729 [Ray Miller <ray.miller@oucs.ox.ac.uk>]
6730 "linux-sparc" configuration.
6731 [Christian Forster <fo@hawo.stw.uni-erlangen.de>]
6733 *) config now generates no-xxx options for missing ciphers.
6736 *) Support the EBCDIC character set (work in progress).
6737 File ebcdic.c not yet included because it has a different license.
6738 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6740 *) Support BS2000/OSD-POSIX.
6741 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>]
6743 *) Make callbacks for key generation use void * instead of char *.
6746 *) Make S/MIME samples compile (not yet tested).
6749 *) Additional typesafe stacks.
6752 *) New configuration variants "bsdi-elf-gcc" (BSD/OS 4.x).
6756 Changes between 0.9.3 and 0.9.3a [29 May 1999]
6758 *) New configuration variant "sco5-gcc".
6760 *) Updated some demos.
6761 [Sean O Riordain, Wade Scholine]
6763 *) Add missing BIO_free at exit of pkcs12 application.
6766 *) Fix memory leak in conf.c.
6769 *) Updates for Win32 to assembler version of MD5.
6772 *) Set #! path to perl in apps/der_chop to where we found it
6773 instead of using a fixed path.
6776 *) SHA library changes for irix64-mips4-cc.
6779 *) Improvements for VMS support.
6783 Changes between 0.9.2b and 0.9.3 [24 May 1999]
6785 *) Bignum library bug fix. IRIX 6 passes "make test" now!
6786 This also avoids the problems with SC4.2 and unpatched SC5.
6787 [Andy Polyakov <appro@fy.chalmers.se>]
6789 *) New functions sk_num, sk_value and sk_set to replace the previous macros.
6790 These are required because of the typesafe stack would otherwise break
6791 existing code. If old code used a structure member which used to be STACK
6792 and is now STACK_OF (for example cert in a PKCS7_SIGNED structure) with
6793 sk_num or sk_value it would produce an error because the num, data members
6794 are not present in STACK_OF. Now it just produces a warning. sk_set
6795 replaces the old method of assigning a value to sk_value
6796 (e.g. sk_value(x, i) = y) which the library used in a few cases. Any code
6797 that does this will no longer work (and should use sk_set instead) but
6798 this could be regarded as a "questionable" behaviour anyway.
6801 *) Fix most of the other PKCS#7 bugs. The "experimental" code can now
6802 correctly handle encrypted S/MIME data.
6805 *) Change type of various DES function arguments from des_cblock
6806 (which means, in function argument declarations, pointer to char)
6807 to des_cblock * (meaning pointer to array with 8 char elements),
6808 which allows the compiler to do more typechecking; it was like
6809 that back in SSLeay, but with lots of ugly casts.
6811 Introduce new type const_des_cblock.
6814 *) Reorganise the PKCS#7 library and get rid of some of the more obvious
6815 problems: find RecipientInfo structure that matches recipient certificate
6816 and initialise the ASN1 structures properly based on passed cipher.
6819 *) Belatedly make the BN tests actually check the results.
6822 *) Fix the encoding and decoding of negative ASN1 INTEGERS and conversion
6823 to and from BNs: it was completely broken. New compilation option
6824 NEG_PUBKEY_BUG to allow for some broken certificates that encode public
6825 key elements as negative integers.
6828 *) Reorganize and speed up MD5.
6829 [Andy Polyakov <appro@fy.chalmers.se>]
6832 [Richard Levitte <richard@levitte.org>]
6834 *) New option -out to asn1parse to allow the parsed structure to be
6835 output to a file. This is most useful when combined with the -strparse
6836 option to examine the output of things like OCTET STRINGS.
6839 *) Make SSL library a little more fool-proof by not requiring any longer
6840 that SSL_set_{accept,connect}_state be called before
6841 SSL_{accept,connect} may be used (SSL_set_..._state is omitted
6842 in many applications because usually everything *appeared* to work as
6843 intended anyway -- now it really works as intended).
6846 *) Move openssl.cnf out of lib/.
6849 *) Fix various things to let OpenSSL even pass ``egcc -pipe -O2 -Wall
6850 -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes
6851 -Wmissing-declarations -Wnested-externs -Winline'' with EGCS 1.1.2+
6852 [Ralf S. Engelschall]
6854 *) Various fixes to the EVP and PKCS#7 code. It may now be able to
6855 handle PKCS#7 enveloped data properly.
6856 [Sebastian Akerman <sak@parallelconsulting.com>, modified by Steve]
6858 *) Create a duplicate of the SSL_CTX's CERT in SSL_new instead of
6859 copying pointers. The cert_st handling is changed by this in
6860 various ways (and thus what used to be known as ctx->default_cert
6861 is now called ctx->cert, since we don't resort to s->ctx->[default_]cert
6862 any longer when s->cert does not give us what we need).
6863 ssl_cert_instantiate becomes obsolete by this change.
6864 As soon as we've got the new code right (possibly it already is?),
6865 we have solved a couple of bugs of the earlier code where s->cert
6866 was used as if it could not have been shared with other SSL structures.
6868 Note that using the SSL API in certain dirty ways now will result
6869 in different behaviour than observed with earlier library versions:
6870 Changing settings for an SSL_CTX *ctx after having done s = SSL_new(ctx)
6871 does not influence s as it used to.
6873 In order to clean up things more thoroughly, inside SSL_SESSION
6874 we don't use CERT any longer, but a new structure SESS_CERT
6875 that holds per-session data (if available); currently, this is
6876 the peer's certificate chain and, for clients, the server's certificate
6877 and temporary key. CERT holds only those values that can have
6878 meaningful defaults in an SSL_CTX.
6881 *) New function X509V3_EXT_i2d() to create an X509_EXTENSION structure
6882 from the internal representation. Various PKCS#7 fixes: remove some
6883 evil casts and set the enc_dig_alg field properly based on the signing
6887 *) Allow PKCS#12 password to be set from the command line or the
6888 environment. Let 'ca' get its config file name from the environment
6889 variables "OPENSSL_CONF" or "SSLEAY_CONF" (for consistency with 'req'
6893 *) Allow certificate policies extension to use an IA5STRING for the
6894 organization field. This is contrary to the PKIX definition but
6895 VeriSign uses it and IE5 only recognises this form. Document 'x509'
6899 *) Add PEDANTIC compiler flag to allow compilation with gcc -pedantic,
6900 without disallowing inline assembler and the like for non-pedantic builds.
6903 *) Support Borland C++ builder.
6904 [Janez Jere <jj@void.si>, modified by Ulf Möller]
6909 *) SHA-1 cleanups and performance enhancements.
6910 [Andy Polyakov <appro@fy.chalmers.se>]
6912 *) Sparc v8plus assembler for the bignum library.
6913 [Andy Polyakov <appro@fy.chalmers.se>]
6915 *) Accept any -xxx and +xxx compiler options in Configure.
6918 *) Update HPUX configuration.
6921 *) Add missing sk_<type>_unshift() function to safestack.h
6922 [Ralf S. Engelschall]
6924 *) New function SSL_CTX_use_certificate_chain_file that sets the
6925 "extra_cert"s in addition to the certificate. (This makes sense
6926 only for "PEM" format files, as chains as a whole are not
6930 *) Support verify_depth from the SSL API.
6931 x509_vfy.c had what can be considered an off-by-one-error:
6932 Its depth (which was not part of the external interface)
6933 was actually counting the number of certificates in a chain;
6934 now it really counts the depth.
6937 *) Bugfix in crypto/x509/x509_cmp.c: The SSLerr macro was used
6938 instead of X509err, which often resulted in confusing error
6939 messages since the error codes are not globally unique
6940 (e.g. an alleged error in ssl3_accept when a certificate
6941 didn't match the private key).
6943 *) New function SSL_CTX_set_session_id_context that allows to set a default
6944 value (so that you don't need SSL_set_session_id_context for each
6945 connection using the SSL_CTX).
6948 *) OAEP decoding bug fix.
6951 *) Support INSTALL_PREFIX for package builders, as proposed by
6955 *) New Configure options "threads" and "no-threads". For systems
6956 where the proper compiler options are known (currently Solaris
6957 and Linux), "threads" is the default.
6960 *) New script util/mklink.pl as a faster substitute for util/mklink.sh.
6963 *) Install various scripts to $(OPENSSLDIR)/misc, not to
6964 $(INSTALLTOP)/bin -- they shouldn't clutter directories
6965 such as /usr/local/bin.
6968 *) "make linux-shared" to build shared libraries.
6969 [Niels Poppe <niels@netbox.org>]
6971 *) New Configure option no-<cipher> (rsa, idea, rc5, ...).
6974 *) Add the PKCS#12 API documentation to openssl.txt. Preliminary support for
6975 extension adding in x509 utility.
6978 *) Remove NOPROTO sections and error code comments.
6981 *) Partial rewrite of the DEF file generator to now parse the ANSI
6985 *) New Configure options --prefix=DIR and --openssldir=DIR.
6988 *) Complete rewrite of the error code script(s). It is all now handled
6989 by one script at the top level which handles error code gathering,
6990 header rewriting and C source file generation. It should be much better
6991 than the old method: it now uses a modified version of Ulf's parser to
6992 read the ANSI prototypes in all header files (thus the old K&R definitions
6993 aren't needed for error creation any more) and do a better job of
6994 translating function codes into names. The old 'ASN1 error code imbedded
6995 in a comment' is no longer necessary and it doesn't use .err files which
6996 have now been deleted. Also the error code call doesn't have to appear all
6997 on one line (which resulted in some large lines...).
7000 *) Change #include filenames from <foo.h> to <openssl/foo.h>.
7003 *) Change behaviour of ssl2_read when facing length-0 packets: Don't return
7004 0 (which usually indicates a closed connection), but continue reading.
7007 *) Fix some race conditions.
7010 *) Add support for CRL distribution points extension. Add Certificate
7011 Policies and CRL distribution points documentation.
7014 *) Move the autogenerated header file parts to crypto/opensslconf.h.
7017 *) Fix new 56-bit DES export ciphersuites: they were using 7 bytes instead of
7018 8 of keying material. Merlin has also confirmed interop with this fix
7019 between OpenSSL and Baltimore C/SSL 2.0 and J/SSL 2.0.
7020 [Merlin Hughes <merlin@baltimore.ie>]
7022 *) Fix lots of warnings.
7023 [Richard Levitte <levitte@stacken.kth.se>]
7025 *) In add_cert_dir() in crypto/x509/by_dir.c, break out of the loop if
7026 the directory spec didn't end with a LIST_SEPARATOR_CHAR.
7027 [Richard Levitte <levitte@stacken.kth.se>]
7029 *) Fix problems with sizeof(long) == 8.
7030 [Andy Polyakov <appro@fy.chalmers.se>]
7032 *) Change functions to ANSI C.
7035 *) Fix typos in error codes.
7036 [Martin Kraemer <Martin.Kraemer@MchP.Siemens.De>, Ulf Möller]
7038 *) Remove defunct assembler files from Configure.
7041 *) SPARC v8 assembler BIGNUM implementation.
7042 [Andy Polyakov <appro@fy.chalmers.se>]
7044 *) Support for Certificate Policies extension: both print and set.
7045 Various additions to support the r2i method this uses.
7048 *) A lot of constification, and fix a bug in X509_NAME_oneline() that could
7049 return a const string when you are expecting an allocated buffer.
7052 *) Add support for ASN1 types UTF8String and VISIBLESTRING, also the CHOICE
7053 types DirectoryString and DisplayText.
7056 *) Add code to allow r2i extensions to access the configuration database,
7057 add an LHASH database driver and add several ctx helper functions.
7060 *) Fix an evil bug in bn_expand2() which caused various BN functions to
7061 fail when they extended the size of a BIGNUM.
7064 *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
7065 support typesafe stack.
7068 *) Fix typo in SSL_[gs]et_options().
7069 [Nils Frostberg <nils@medcom.se>]
7071 *) Delete various functions and files that belonged to the (now obsolete)
7072 old X509V3 handling code.
7075 *) New Configure option "rsaref".
7078 *) Don't auto-generate pem.h.
7081 *) Introduce type-safe ASN.1 SETs.
7084 *) Convert various additional casted stacks to type-safe STACK_OF() variants.
7085 [Ben Laurie, Ralf S. Engelschall, Steve Henson]
7087 *) Introduce type-safe STACKs. This will almost certainly break lots of code
7088 that links with OpenSSL (well at least cause lots of warnings), but fear
7089 not: the conversion is trivial, and it eliminates loads of evil casts. A
7090 few STACKed things have been converted already. Feel free to convert more.
7091 In the fullness of time, I'll do away with the STACK type altogether.
7094 *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
7095 specified in <certfile> by updating the entry in the index.txt file.
7096 This way one no longer has to edit the index.txt file manually for
7097 revoking a certificate. The -revoke option does the gory details now.
7098 [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
7100 *) Fix `openssl crl -noout -text' combination where `-noout' killed the
7101 `-text' option at all and this way the `-noout -text' combination was
7102 inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
7103 [Ralf S. Engelschall]
7105 *) Make sure a corresponding plain text error message exists for the
7106 X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
7107 verify callback function determined that a certificate was revoked.
7108 [Ralf S. Engelschall]
7110 *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
7111 ciphers that were excluded, e.g. by -DNO_IDEA. Also, test
7112 all available cipers including rc5, which was forgotten until now.
7113 In order to let the testing shell script know which algorithms
7114 are available, a new (up to now undocumented) command
7115 "openssl list-cipher-commands" is used.
7118 *) Bugfix: s_client occasionally would sleep in select() when
7119 it should have checked SSL_pending() first.
7122 *) New functions DSA_do_sign and DSA_do_verify to provide access to
7123 the raw DSA values prior to ASN.1 encoding.
7126 *) Tweaks to Configure
7127 [Niels Poppe <niels@netbox.org>]
7129 *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
7133 *) New variables $(RANLIB) and $(PERL) in the Makefiles.
7136 *) New config option to avoid instructions that are illegal on the 80386.
7137 The default code is faster, but requires at least a 486.
7140 *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
7141 SSL2_SERVER_VERSION (not used at all) macros, which are now the
7142 same as SSL2_VERSION anyway.
7145 *) New "-showcerts" option for s_client.
7148 *) Still more PKCS#12 integration. Add pkcs12 application to openssl
7149 application. Various cleanups and fixes.
7152 *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
7153 modify error routines to work internally. Add error codes and PBE init
7154 to library startup routines.
7157 *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
7158 packing functions to asn1 and evp. Changed function names and error
7159 codes along the way.
7162 *) PKCS12 integration: and so it begins... First of several patches to
7163 slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
7164 objects to objects.h
7167 *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
7168 and display support for Thawte strong extranet extension.
7171 *) Add LinuxPPC support.
7172 [Jeff Dubrule <igor@pobox.org>]
7174 *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
7175 bn_div_words in alpha.s.
7176 [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
7178 *) Make sure the RSA OAEP test is skipped under -DRSAref because
7179 OAEP isn't supported when OpenSSL is built with RSAref.
7180 [Ulf Moeller <ulf@fitug.de>]
7182 *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
7183 so they no longer are missing under -DNOPROTO.
7184 [Soren S. Jorvang <soren@t.dk>]
7187 Changes between 0.9.1c and 0.9.2b [22 Mar 1999]
7189 *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
7190 doesn't work when the session is reused. Coming soon!
7193 *) Fix a security hole, that allows sessions to be reused in the wrong
7194 context thus bypassing client cert protection! All software that uses
7195 client certs and session caches in multiple contexts NEEDS PATCHING to
7196 allow session reuse! A fuller solution is in the works.
7197 [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
7199 *) Some more source tree cleanups (removed obsolete files
7200 crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
7201 permission on "config" script to be executable) and a fix for the INSTALL
7203 [Ulf Moeller <ulf@fitug.de>]
7205 *) Remove some legacy and erroneous uses of malloc, free instead of
7207 [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
7209 *) Make rsa_oaep_test return non-zero on error.
7210 [Ulf Moeller <ulf@fitug.de>]
7212 *) Add support for native Solaris shared libraries. Configure
7213 solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
7214 if someone would make that last step automatic.
7215 [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
7217 *) ctx_size was not built with the right compiler during "make links". Fixed.
7220 *) Change the meaning of 'ALL' in the cipher list. It now means "everything
7221 except NULL ciphers". This means the default cipher list will no longer
7222 enable NULL ciphers. They need to be specifically enabled e.g. with
7223 the string "DEFAULT:eNULL".
7226 *) Fix to RSA private encryption routines: if p < q then it would
7227 occasionally produce an invalid result. This will only happen with
7228 externally generated keys because OpenSSL (and SSLeay) ensure p > q.
7231 *) Be less restrictive and allow also `perl util/perlpath.pl
7232 /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
7233 because this way one can also use an interpreter named `perl5' (which is
7234 usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
7235 installed as `perl').
7236 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7238 *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
7239 [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7241 *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
7242 advapi32.lib to Win32 build and change the pem test comparision
7243 to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
7244 suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
7245 and crypto/des/ede_cbcm_enc.c.
7248 *) DES quad checksum was broken on big-endian architectures. Fixed.
7251 *) Comment out two functions in bio.h that aren't implemented. Fix up the
7252 Win32 test batch file so it (might) work again. The Win32 test batch file
7253 is horrible: I feel ill....
7256 *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
7257 in e_os.h. Audit of header files to check ANSI and non ANSI
7258 sections: 10 functions were absent from non ANSI section and not exported
7259 from Windows DLLs. Fixed up libeay.num for new functions.
7262 *) Make `openssl version' output lines consistent.
7263 [Ralf S. Engelschall]
7265 *) Fix Win32 symbol export lists for BIO functions: Added
7266 BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
7267 to ms/libeay{16,32}.def.
7268 [Ralf S. Engelschall]
7270 *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
7271 fine under Unix and passes some trivial tests I've now added. But the
7272 whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
7273 added to make sure no one expects that this stuff really works in the
7274 OpenSSL 0.9.2 release. Additionally I've started to clean the XS sources
7275 up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
7277 [Ralf S. Engelschall]
7279 *) Fix the generation of two part addresses in perl.
7280 [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
7282 *) Add config entry for Linux on MIPS.
7283 [John Tobey <jtobey@channel1.com>]
7285 *) Make links whenever Configure is run, unless we are on Windoze.
7288 *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
7289 Currently only issuerAltName and AuthorityKeyIdentifier make any sense
7293 *) Add a useful kludge to allow package maintainers to specify compiler and
7294 other platforms details on the command line without having to patch the
7295 Configure script everytime: One now can use ``perl Configure
7296 <id>:<details>'', i.e. platform ids are allowed to have details appended
7297 to them (seperated by colons). This is treated as there would be a static
7298 pre-configured entry in Configure's %table under key <id> with value
7299 <details> and ``perl Configure <id>'' is called. So, when you want to
7300 perform a quick test-compile under FreeBSD 3.1 with pgcc and without
7301 assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
7302 now, which overrides the FreeBSD-elf entry on-the-fly.
7303 [Ralf S. Engelschall]
7305 *) Disable new TLS1 ciphersuites by default: they aren't official yet.
7308 *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
7309 on the `perl Configure ...' command line. This way one can compile
7310 OpenSSL libraries with Position Independent Code (PIC) which is needed
7311 for linking it into DSOs.
7312 [Ralf S. Engelschall]
7314 *) Remarkably, export ciphers were totally broken and no-one had noticed!
7318 *) Cleaned up the LICENSE document: The official contact for any license
7319 questions now is the OpenSSL core team under openssl-core@openssl.org.
7320 And add a paragraph about the dual-license situation to make sure people
7321 recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
7322 to the OpenSSL toolkit.
7323 [Ralf S. Engelschall]
7325 *) General source tree makefile cleanups: Made `making xxx in yyy...'
7326 display consistent in the source tree and replaced `/bin/rm' by `rm'.
7327 Additonally cleaned up the `make links' target: Remove unnecessary
7328 semicolons, subsequent redundant removes, inline point.sh into mklink.sh
7329 to speed processing and no longer clutter the display with confusing
7330 stuff. Instead only the actually done links are displayed.
7331 [Ralf S. Engelschall]
7333 *) Permit null encryption ciphersuites, used for authentication only. It used
7334 to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
7335 It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
7339 *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
7340 signed attributes when verifying signatures (this would break them),
7341 the detached data encoding was wrong and public keys obtained using
7342 X509_get_pubkey() weren't freed.
7345 *) Add text documentation for the BUFFER functions. Also added a work around
7346 to a Win95 console bug. This was triggered by the password read stuff: the
7347 last character typed gets carried over to the next fread(). If you were
7348 generating a new cert request using 'req' for example then the last
7349 character of the passphrase would be CR which would then enter the first
7353 *) Added the new `Includes OpenSSL Cryptography Software' button as
7354 doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
7355 button and can be used by applications based on OpenSSL to show the
7356 relationship to the OpenSSL project.
7357 [Ralf S. Engelschall]
7359 *) Remove confusing variables in function signatures in files
7360 ssl/ssl_lib.c and ssl/ssl.h.
7361 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7363 *) Don't install bss_file.c under PREFIX/include/
7364 [Lennart Bong <lob@kulthea.stacken.kth.se>]
7366 *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
7367 functions that return function pointers and has support for NT specific
7368 stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
7369 #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
7370 unsigned to signed types: this was killing the Win32 compile.
7373 *) Add new certificate file to stack functions,
7374 SSL_add_dir_cert_subjects_to_stack() and
7375 SSL_add_file_cert_subjects_to_stack(). These largely supplant
7376 SSL_load_client_CA_file(), and can be used to add multiple certs easily
7377 to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
7378 This means that Apache-SSL and similar packages don't have to mess around
7379 to add as many CAs as they want to the preferred list.
7382 *) Experiment with doxygen documentation. Currently only partially applied to
7384 See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
7385 openssl.doxy as the configuration file.
7388 *) Get rid of remaining C++-style comments which strict C compilers hate.
7389 [Ralf S. Engelschall, pointed out by Carlos Amengual]
7391 *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
7392 compiled in by default: it has problems with large keys.
7395 *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
7396 DH private keys and/or callback functions which directly correspond to
7397 their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
7398 is needed for applications which have to configure certificates on a
7399 per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
7401 For the RSA certificate situation is makes no difference, but
7402 for the DSA certificate situation this fixes the "no shared cipher"
7403 problem where the OpenSSL cipher selection procedure failed because the
7404 temporary keys were not overtaken from the context and the API provided
7405 no way to reconfigure them.
7406 The new functions now let applications reconfigure the stuff and they
7407 are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
7408 SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback. Additionally a new
7409 non-public-API function ssl_cert_instantiate() is used as a helper
7410 function and also to reduce code redundancy inside ssl_rsa.c.
7411 [Ralf S. Engelschall]
7413 *) Move s_server -dcert and -dkey options out of the undocumented feature
7414 area because they are useful for the DSA situation and should be
7415 recognized by the users.
7416 [Ralf S. Engelschall]
7418 *) Fix the cipher decision scheme for export ciphers: the export bits are
7419 *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
7420 SSL_EXP_MASK. So, the original variable has to be used instead of the
7421 already masked variable.
7422 [Richard Levitte <levitte@stacken.kth.se>]
7424 *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
7425 [Richard Levitte <levitte@stacken.kth.se>]
7427 *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
7428 from `int' to `unsigned int' because it's a length and initialized by
7429 EVP_DigestFinal() which expects an `unsigned int *'.
7430 [Richard Levitte <levitte@stacken.kth.se>]
7432 *) Don't hard-code path to Perl interpreter on shebang line of Configure
7433 script. Instead use the usual Shell->Perl transition trick.
7434 [Ralf S. Engelschall]
7436 *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
7437 (in addition to RSA certificates) to match the behaviour of `openssl dsa
7438 -noout -modulus' as it's already the case for `openssl rsa -noout
7439 -modulus'. For RSA the -modulus is the real "modulus" while for DSA
7440 currently the public key is printed (a decision which was already done by
7441 `openssl dsa -modulus' in the past) which serves a similar purpose.
7442 Additionally the NO_RSA no longer completely removes the whole -modulus
7443 option; it now only avoids using the RSA stuff. Same applies to NO_DSA
7445 [Ralf S. Engelschall]
7447 *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
7448 BIO. See the source (crypto/evp/bio_ok.c) for more info.
7449 [Arne Ansper <arne@ats.cyber.ee>]
7451 *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
7452 to be added. Now both 'req' and 'ca' can use new objects defined in the
7456 *) Add cool BIO that does syslog (or event log on NT).
7457 [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
7459 *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
7460 TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
7461 TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
7462 Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
7465 *) Add preliminary config info for new extension code.
7468 *) Make RSA_NO_PADDING really use no padding.
7469 [Ulf Moeller <ulf@fitug.de>]
7471 *) Generate errors when private/public key check is done.
7474 *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
7475 for some CRL extensions and new objects added.
7478 *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
7479 key usage extension and fuller support for authority key id.
7482 *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
7483 padding method for RSA, which is recommended for new applications in PKCS
7484 #1 v2.0 (RFC 2437, October 1998).
7485 OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
7486 foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
7487 against Bleichbacher's attack on RSA.
7488 [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
7491 *) Updates to the new SSL compression code
7492 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7494 *) Fix so that the version number in the master secret, when passed
7495 via RSA, checks that if TLS was proposed, but we roll back to SSLv3
7496 (because the server will not accept higher), that the version number
7497 is 0x03,0x01, not 0x03,0x00
7498 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7500 *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
7501 leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
7502 in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
7505 *) Support for RAW extensions where an arbitrary extension can be
7506 created by including its DER encoding. See apps/openssl.cnf for
7510 *) Make sure latest Perl versions don't interpret some generated C array
7511 code as Perl array code in the crypto/err/err_genc.pl script.
7512 [Lars Weber <3weber@informatik.uni-hamburg.de>]
7514 *) Modify ms/do_ms.bat to not generate assembly language makefiles since
7515 not many people have the assembler. Various Win32 compilation fixes and
7516 update to the INSTALL.W32 file with (hopefully) more accurate Win32
7520 *) Modify configure script 'Configure' to automatically create crypto/date.h
7521 file under Win32 and also build pem.h from pem.org. New script
7522 util/mkfiles.pl to create the MINFO file on environments that can't do a
7523 'make files': perl util/mkfiles.pl >MINFO should work.
7526 *) Major rework of DES function declarations, in the pursuit of correctness
7527 and purity. As a result, many evil casts evaporated, and some weirdness,
7528 too. You may find this causes warnings in your code. Zapping your evil
7529 casts will probably fix them. Mostly.
7532 *) Fix for a typo in asn1.h. Bug fix to object creation script
7533 obj_dat.pl. It considered a zero in an object definition to mean
7534 "end of object": none of the objects in objects.h have any zeros
7535 so it wasn't spotted.
7536 [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
7538 *) Add support for Triple DES Cipher Block Chaining with Output Feedback
7539 Masking (CBCM). In the absence of test vectors, the best I have been able
7540 to do is check that the decrypt undoes the encrypt, so far. Send me test
7541 vectors if you have them.
7544 *) Correct calculation of key length for export ciphers (too much space was
7545 allocated for null ciphers). This has not been tested!
7548 *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
7549 message is now correct (it understands "crypto" and "ssl" on its
7550 command line). There is also now an "update" option. This will update
7551 the util/ssleay.num and util/libeay.num files with any new functions.
7553 perl util/mkdef.pl crypto ssl update
7554 it will update them.
7557 *) Overhauled the Perl interface (perl/*):
7558 - ported BN stuff to OpenSSL's different BN library
7559 - made the perl/ source tree CVS-aware
7560 - renamed the package from SSLeay to OpenSSL (the files still contain
7561 their history because I've copied them in the repository)
7562 - removed obsolete files (the test scripts will be replaced
7563 by better Test::Harness variants in the future)
7564 [Ralf S. Engelschall]
7566 *) First cut for a very conservative source tree cleanup:
7567 1. merge various obsolete readme texts into doc/ssleay.txt
7568 where we collect the old documents and readme texts.
7569 2. remove the first part of files where I'm already sure that we no
7570 longer need them because of three reasons: either they are just temporary
7571 files which were left by Eric or they are preserved original files where
7572 I've verified that the diff is also available in the CVS via "cvs diff
7573 -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
7574 the crypto/md/ stuff).
7575 [Ralf S. Engelschall]
7577 *) More extension code. Incomplete support for subject and issuer alt
7578 name, issuer and authority key id. Change the i2v function parameters
7579 and add an extra 'crl' parameter in the X509V3_CTX structure: guess
7580 what that's for :-) Fix to ASN1 macro which messed up
7581 IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
7584 *) Preliminary support for ENUMERATED type. This is largely copied from the
7588 *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
7589 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7591 *) Make sure `make rehash' target really finds the `openssl' program.
7592 [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
7594 *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
7595 like to hear about it if this slows down other processors.
7598 *) Add CygWin32 platform information to Configure script.
7599 [Alan Batie <batie@aahz.jf.intel.com>]
7601 *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
7602 [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
7604 *) New program nseq to manipulate netscape certificate sequences
7607 *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
7611 *) Fixes to BN code. Previously the default was to define BN_RECURSION
7612 but the BN code had some problems that would cause failures when
7613 doing certificate verification and some other functions.
7614 [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
7616 *) Add ASN1 and PEM code to support netscape certificate sequences.
7619 *) Add ASN1 and PEM code to support netscape certificate sequences.
7622 *) Add several PKIX and private extended key usage OIDs.
7625 *) Modify the 'ca' program to handle the new extension code. Modify
7626 openssl.cnf for new extension format, add comments.
7629 *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
7630 and add a sample to openssl.cnf so req -x509 now adds appropriate
7634 *) Continued X509 V3 changes. Add to other makefiles, integrate with the
7635 error code, add initial support to X509_print() and x509 application.
7638 *) Takes a deep breath and start addding X509 V3 extension support code. Add
7639 files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
7640 stuff is currently isolated and isn't even compiled yet.
7643 *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
7644 ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
7645 Removed the versions check from X509 routines when loading extensions:
7646 this allows certain broken certificates that don't set the version
7647 properly to be processed.
7650 *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
7651 Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
7652 can still be regenerated with "make depend".
7655 *) Spelling mistake in C version of CAST-128.
7656 [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
7658 *) Changes to the error generation code. The perl script err-code.pl
7659 now reads in the old error codes and retains the old numbers, only
7660 adding new ones if necessary. It also only changes the .err files if new
7661 codes are added. The makefiles have been modified to only insert errors
7662 when needed (to avoid needlessly modifying header files). This is done
7663 by only inserting errors if the .err file is newer than the auto generated
7664 C file. To rebuild all the error codes from scratch (the old behaviour)
7665 either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
7666 or delete all the .err files.
7669 *) CAST-128 was incorrectly implemented for short keys. The C version has
7670 been fixed, but is untested. The assembler versions are also fixed, but
7671 new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
7672 to regenerate it if needed.
7673 [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
7674 Hagino <itojun@kame.net>]
7676 *) File was opened incorrectly in randfile.c.
7677 [Ulf Möller <ulf@fitug.de>]
7679 *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
7680 functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
7681 GeneralizedTime. ASN1_TIME is the proper type used in certificates et
7682 al: it's just almost always a UTCTime. Note this patch adds new error
7683 codes so do a "make errors" if there are problems.
7686 *) Correct Linux 1 recognition in config.
7687 [Ulf Möller <ulf@fitug.de>]
7689 *) Remove pointless MD5 hash when using DSA keys in ca.
7690 [Anonymous <nobody@replay.com>]
7692 *) Generate an error if given an empty string as a cert directory. Also
7693 generate an error if handed NULL (previously returned 0 to indicate an
7694 error, but didn't set one).
7695 [Ben Laurie, reported by Anonymous <nobody@replay.com>]
7697 *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
7700 *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
7701 parameters. This was causing a warning which killed off the Win32 compile.
7704 *) Remove C++ style comments from crypto/bn/bn_local.h.
7705 [Neil Costigan <neil.costigan@celocom.com>]
7707 *) The function OBJ_txt2nid was broken. It was supposed to return a nid
7708 based on a text string, looking up short and long names and finally
7709 "dot" format. The "dot" format stuff didn't work. Added new function
7710 OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
7711 OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
7712 OID is not part of the table.
7715 *) Add prototypes to X509 lookup/verify methods, fixing a bug in
7716 X509_LOOKUP_by_alias().
7719 *) Sort openssl functions by name.
7722 *) Get the gendsa program working (hopefully) and add it to app list. Remove
7723 encryption from sample DSA keys (in case anyone is interested the password
7727 *) Make _all_ *_free functions accept a NULL pointer.
7728 [Frans Heymans <fheymans@isaserver.be>]
7730 *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
7732 [Anonymous <nobody@replay.com>]
7734 *) s_server should send the CAfile as acceptable CAs, not its own cert.
7735 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7737 *) Don't blow it for numeric -newkey arguments to apps/req.
7738 [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
7740 *) Temp key "for export" tests were wrong in s3_srvr.c.
7741 [Anonymous <nobody@replay.com>]
7743 *) Add prototype for temp key callback functions
7744 SSL_CTX_set_tmp_{rsa,dh}_callback().
7747 *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
7748 DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
7751 *) X509_name_add_entry() freed the wrong thing after an error.
7752 [Arne Ansper <arne@ats.cyber.ee>]
7754 *) rsa_eay.c would attempt to free a NULL context.
7755 [Arne Ansper <arne@ats.cyber.ee>]
7757 *) BIO_s_socket() had a broken should_retry() on Windoze.
7758 [Arne Ansper <arne@ats.cyber.ee>]
7760 *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
7761 [Arne Ansper <arne@ats.cyber.ee>]
7763 *) Make sure the already existing X509_STORE->depth variable is initialized
7764 in X509_STORE_new(), but document the fact that this variable is still
7765 unused in the certificate verification process.
7766 [Ralf S. Engelschall]
7768 *) Fix the various library and apps files to free up pkeys obtained from
7769 X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
7772 *) Fix reference counting in X509_PUBKEY_get(). This makes
7773 demos/maurice/example2.c work, amongst others, probably.
7774 [Steve Henson and Ben Laurie]
7776 *) First cut of a cleanup for apps/. First the `ssleay' program is now named
7777 `openssl' and second, the shortcut symlinks for the `openssl <command>'
7778 are no longer created. This way we have a single and consistent command
7779 line interface `openssl <command>', similar to `cvs <command>'.
7780 [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
7782 *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
7783 BIT STRING wrapper always have zero unused bits.
7786 *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
7789 *) Make the top-level INSTALL documentation easier to understand.
7792 *) Makefiles updated to exit if an error occurs in a sub-directory
7793 make (including if user presses ^C) [Paul Sutton]
7795 *) Make Montgomery context stuff explicit in RSA data structure.
7798 *) Fix build order of pem and err to allow for generated pem.h.
7801 *) Fix renumbering bug in X509_NAME_delete_entry().
7804 *) Enhanced the err-ins.pl script so it makes the error library number
7805 global and can add a library name. This is needed for external ASN1 and
7806 other error libraries.
7809 *) Fixed sk_insert which never worked properly.
7812 *) Fix ASN1 macros so they can handle indefinite length construted
7813 EXPLICIT tags. Some non standard certificates use these: they can now
7817 *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
7818 into a single doc/ssleay.txt bundle. This way the information is still
7819 preserved but no longer messes up this directory. Now it's new room for
7820 the new set of documenation files.
7821 [Ralf S. Engelschall]
7823 *) SETs were incorrectly DER encoded. This was a major pain, because they
7824 shared code with SEQUENCEs, which aren't coded the same. This means that
7825 almost everything to do with SETs or SEQUENCEs has either changed name or
7826 number of arguments.
7827 [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
7829 *) Fix test data to work with the above.
7832 *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
7833 was already fixed by Eric for 0.9.1 it seems.
7834 [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
7836 *) Autodetect FreeBSD3.
7839 *) Fix various bugs in Configure. This affects the following platforms:
7843 unixware-2.0-pentium
7847 *) Eliminate generated files from CVS. Reorder tests to regenerate files
7848 before they are needed.
7851 *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
7855 Changes between 0.9.1b and 0.9.1c [23-Dec-1998]
7857 *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
7858 changed SSLeay to OpenSSL in version strings.
7859 [Ralf S. Engelschall]
7861 *) Some fixups to the top-level documents.
7864 *) Fixed the nasty bug where rsaref.h was not found under compile-time
7865 because the symlink to include/ was missing.
7866 [Ralf S. Engelschall]
7868 *) Incorporated the popular no-RSA/DSA-only patches
7869 which allow to compile a RSA-free SSLeay.
7870 [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
7872 *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
7873 when "ssleay" is still not found.
7874 [Ralf S. Engelschall]
7876 *) Added more platforms to Configure: Cray T3E, HPUX 11,
7877 [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
7879 *) Updated the README file.
7880 [Ralf S. Engelschall]
7882 *) Added various .cvsignore files in the CVS repository subdirs
7883 to make a "cvs update" really silent.
7884 [Ralf S. Engelschall]
7886 *) Recompiled the error-definition header files and added
7887 missing symbols to the Win32 linker tables.
7888 [Ralf S. Engelschall]
7890 *) Cleaned up the top-level documents;
7891 o new files: CHANGES and LICENSE
7892 o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
7893 o merged COPYRIGHT into LICENSE
7894 o removed obsolete TODO file
7895 o renamed MICROSOFT to INSTALL.W32
7896 [Ralf S. Engelschall]
7898 *) Removed dummy files from the 0.9.1b source tree:
7899 crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
7900 crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
7901 crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
7902 crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
7903 util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
7904 [Ralf S. Engelschall]
7906 *) Added various platform portability fixes.
7909 *) The Genesis of the OpenSSL rpject:
7910 We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
7911 Young and Tim J. Hudson created while they were working for C2Net until
7913 [The OpenSSL Project]
7916 Changes between 0.9.0b and 0.9.1b [not released]
7918 *) Updated a few CA certificates under certs/
7921 *) Changed some BIGNUM api stuff.
7924 *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
7925 DGUX x86, Linux Alpha, etc.
7928 *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
7929 RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
7933 *) Add -strparse option to asn1pars program which parses nested
7935 [Dr Stephen Henson <shenson@bigfoot.com>]
7937 *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
7940 *) DSA fix for "ca" program.
7943 *) Added "-genkey" option to "dsaparam" program.
7946 *) Added RIPE MD160 (rmd160) message digest.
7949 *) Added -a (all) option to "ssleay version" command.
7952 *) Added PLATFORM define which is the id given to Configure.
7955 *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
7958 *) Extended the ASN.1 parser routines.
7961 *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
7964 *) Added a BN_CTX to the BN library.
7967 *) Fixed the weak key values in DES library
7970 *) Changed API in EVP library for cipher aliases.
7973 *) Added support for RC2/64bit cipher.
7976 *) Converted the lhash library to the crypto/mem.c functions.
7979 *) Added more recognized ASN.1 object ids.
7982 *) Added more RSA padding checks for SSL/TLS.
7985 *) Added BIO proxy/filter functionality.
7988 *) Added extra_certs to SSL_CTX which can be used
7989 send extra CA certificates to the client in the CA cert chain sending
7990 process. It can be configured with SSL_CTX_add_extra_chain_cert().
7993 *) Now Fortezza is denied in the authentication phase because
7994 this is key exchange mechanism is not supported by SSLeay at all.
7997 *) Additional PKCS1 checks.
8000 *) Support the string "TLSv1" for all TLS v1 ciphers.
8003 *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
8004 ex_data index of the SSL context in the X509_STORE_CTX ex_data.
8007 *) Fixed a few memory leaks.
8010 *) Fixed various code and comment typos.
8013 *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
8014 bytes sent in the client random.
8015 [Edward Bishop <ebishop@spyglass.com>]
projects / openssl.git / blob